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(["a"], [], false, function($__System) {
var require = this.require, exports = this.exports, module = this.module;
$__System.registerDynamic("b", ["d", "e", "f", "10", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (whitelist) {
    var outputType = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "global";

    var namespace = t.identifier("babelHelpers");

    var builder = function builder(body) {
      return buildHelpers(body, namespace, whitelist);
    };

    var tree = void 0;

    var build = {
      global: buildGlobal,
      umd: buildUmd,
      var: buildVar
    }[outputType];

    if (build) {
      tree = build(namespace, builder);
    } else {
      throw new Error(messages.get("unsupportedOutputType", outputType));
    }

    return (0, _babelGenerator2.default)(tree).code;
  };

  var _babelHelpers = $__require("d");

  var helpers = _interopRequireWildcard(_babelHelpers);

  var _babelGenerator = $__require("e");

  var _babelGenerator2 = _interopRequireDefault(_babelGenerator);

  var _babelMessages = $__require("f");

  var messages = _interopRequireWildcard(_babelMessages);

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  var buildUmdWrapper = (0, _babelTemplate2.default)("\n  (function (root, factory) {\n    if (typeof define === \"function\" && define.amd) {\n      define(AMD_ARGUMENTS, factory);\n    } else if (typeof exports === \"object\") {\n      factory(COMMON_ARGUMENTS);\n    } else {\n      factory(BROWSER_ARGUMENTS);\n    }\n  })(UMD_ROOT, function (FACTORY_PARAMETERS) {\n    FACTORY_BODY\n  });\n");

  function buildGlobal(namespace, builder) {
    var body = [];
    var container = t.functionExpression(null, [t.identifier("global")], t.blockStatement(body));
    var tree = t.program([t.expressionStatement(t.callExpression(container, [helpers.get("selfGlobal")]))]);

    body.push(t.variableDeclaration("var", [t.variableDeclarator(namespace, t.assignmentExpression("=", t.memberExpression(t.identifier("global"), namespace), t.objectExpression([])))]));

    builder(body);

    return tree;
  }

  function buildUmd(namespace, builder) {
    var body = [];
    body.push(t.variableDeclaration("var", [t.variableDeclarator(namespace, t.identifier("global"))]));

    builder(body);

    return t.program([buildUmdWrapper({
      FACTORY_PARAMETERS: t.identifier("global"),
      BROWSER_ARGUMENTS: t.assignmentExpression("=", t.memberExpression(t.identifier("root"), namespace), t.objectExpression([])),
      COMMON_ARGUMENTS: t.identifier("exports"),
      AMD_ARGUMENTS: t.arrayExpression([t.stringLiteral("exports")]),
      FACTORY_BODY: body,
      UMD_ROOT: t.identifier("this")
    })]);
  }

  function buildVar(namespace, builder) {
    var body = [];
    body.push(t.variableDeclaration("var", [t.variableDeclarator(namespace, t.objectExpression([]))]));
    builder(body);
    body.push(t.expressionStatement(namespace));
    return t.program(body);
  }

  function buildHelpers(body, namespace, whitelist) {
    helpers.list.forEach(function (name) {
      if (whitelist && whitelist.indexOf(name) < 0) return;

      var key = t.identifier(name);
      body.push(t.expressionStatement(t.assignmentExpression("=", t.memberExpression(namespace, key), helpers.get(name))));
    });
  }
  module.exports = exports["default"];
});
$__System.registerDynamic("12", [], true, function() {
  return {
    "name": "babel-core",
    "version": "6.25.0",
    "description": "Babel compiler core.",
    "author": "Sebastian McKenzie <sebmck@gmail.com>",
    "homepage": "https://babeljs.io/",
    "license": "MIT",
    "repository": "https://github.com/babel/babel/tree/master/packages/babel-core",
    "keywords": [
      "6to5",
      "babel",
      "classes",
      "const",
      "es6",
      "harmony",
      "let",
      "modules",
      "transpile",
      "transpiler",
      "var",
      "babel-core",
      "compiler"
    ],
    "scripts": {
      "bench": "make bench",
      "test": "make test"
    },
    "dependencies": {
      "babel-code-frame": "^6.22.0",
      "babel-generator": "^6.25.0",
      "babel-helpers": "^6.24.1",
      "babel-messages": "^6.23.0",
      "babel-template": "^6.25.0",
      "babel-runtime": "^6.22.0",
      "babel-register": "^6.24.1",
      "babel-traverse": "^6.25.0",
      "babel-types": "^6.25.0",
      "babylon": "^6.17.2",
      "convert-source-map": "^1.1.0",
      "debug": "^2.1.1",
      "json5": "^0.5.0",
      "lodash": "^4.2.0",
      "minimatch": "^3.0.2",
      "path-is-absolute": "^1.0.0",
      "private": "^0.1.6",
      "slash": "^1.0.0",
      "source-map": "^0.5.0"
    },
    "devDependencies": {
      "babel-helper-fixtures": "^6.22.0",
      "babel-helper-transform-fixture-test-runner": "^6.24.1",
      "babel-polyfill": "^6.23.0"
    }
  };
});

$__System.registerDynamic("13", ["11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (ast, comments, tokens) {
    if (ast) {
      if (ast.type === "Program") {
        return t.file(ast, comments || [], tokens || []);
      } else if (ast.type === "File") {
        return ast;
      }
    }

    throw new Error("Not a valid ast?");
  };

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("14", ["10"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var helpers = {};
  exports.default = helpers;

  helpers.typeof = (0, _babelTemplate2.default)("\n  (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\")\n    ? function (obj) { return typeof obj; }\n    : function (obj) {\n        return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype\n          ? \"symbol\"\n          : typeof obj;\n      };\n");

  helpers.jsx = (0, _babelTemplate2.default)("\n  (function () {\n    var REACT_ELEMENT_TYPE = (typeof Symbol === \"function\" && Symbol.for && Symbol.for(\"react.element\")) || 0xeac7;\n\n    return function createRawReactElement (type, props, key, children) {\n      var defaultProps = type && type.defaultProps;\n      var childrenLength = arguments.length - 3;\n\n      if (!props && childrenLength !== 0) {\n        // If we're going to assign props.children, we create a new object now\n        // to avoid mutating defaultProps.\n        props = {};\n      }\n      if (props && defaultProps) {\n        for (var propName in defaultProps) {\n          if (props[propName] === void 0) {\n            props[propName] = defaultProps[propName];\n          }\n        }\n      } else if (!props) {\n        props = defaultProps || {};\n      }\n\n      if (childrenLength === 1) {\n        props.children = children;\n      } else if (childrenLength > 1) {\n        var childArray = Array(childrenLength);\n        for (var i = 0; i < childrenLength; i++) {\n          childArray[i] = arguments[i + 3];\n        }\n        props.children = childArray;\n      }\n\n      return {\n        $$typeof: REACT_ELEMENT_TYPE,\n        type: type,\n        key: key === undefined ? null : '' + key,\n        ref: null,\n        props: props,\n        _owner: null,\n      };\n    };\n\n  })()\n");

  helpers.asyncIterator = (0, _babelTemplate2.default)("\n  (function (iterable) {\n    if (typeof Symbol === \"function\") {\n      if (Symbol.asyncIterator) {\n        var method = iterable[Symbol.asyncIterator];\n        if (method != null) return method.call(iterable);\n      }\n      if (Symbol.iterator) {\n        return iterable[Symbol.iterator]();\n      }\n    }\n    throw new TypeError(\"Object is not async iterable\");\n  })\n");

  helpers.asyncGenerator = (0, _babelTemplate2.default)("\n  (function () {\n    function AwaitValue(value) {\n      this.value = value;\n    }\n\n    function AsyncGenerator(gen) {\n      var front, back;\n\n      function send(key, arg) {\n        return new Promise(function (resolve, reject) {\n          var request = {\n            key: key,\n            arg: arg,\n            resolve: resolve,\n            reject: reject,\n            next: null\n          };\n\n          if (back) {\n            back = back.next = request;\n          } else {\n            front = back = request;\n            resume(key, arg);\n          }\n        });\n      }\n\n      function resume(key, arg) {\n        try {\n          var result = gen[key](arg)\n          var value = result.value;\n          if (value instanceof AwaitValue) {\n            Promise.resolve(value.value).then(\n              function (arg) { resume(\"next\", arg); },\n              function (arg) { resume(\"throw\", arg); });\n          } else {\n            settle(result.done ? \"return\" : \"normal\", result.value);\n          }\n        } catch (err) {\n          settle(\"throw\", err);\n        }\n      }\n\n      function settle(type, value) {\n        switch (type) {\n          case \"return\":\n            front.resolve({ value: value, done: true });\n            break;\n          case \"throw\":\n            front.reject(value);\n            break;\n          default:\n            front.resolve({ value: value, done: false });\n            break;\n        }\n\n        front = front.next;\n        if (front) {\n          resume(front.key, front.arg);\n        } else {\n          back = null;\n        }\n      }\n\n      this._invoke = send;\n\n      // Hide \"return\" method if generator return is not supported\n      if (typeof gen.return !== \"function\") {\n        this.return = undefined;\n      }\n    }\n\n    if (typeof Symbol === \"function\" && Symbol.asyncIterator) {\n      AsyncGenerator.prototype[Symbol.asyncIterator] = function () { return this; };\n    }\n\n    AsyncGenerator.prototype.next = function (arg) { return this._invoke(\"next\", arg); };\n    AsyncGenerator.prototype.throw = function (arg) { return this._invoke(\"throw\", arg); };\n    AsyncGenerator.prototype.return = function (arg) { return this._invoke(\"return\", arg); };\n\n    return {\n      wrap: function (fn) {\n        return function () {\n          return new AsyncGenerator(fn.apply(this, arguments));\n        };\n      },\n      await: function (value) {\n        return new AwaitValue(value);\n      }\n    };\n\n  })()\n");

  helpers.asyncGeneratorDelegate = (0, _babelTemplate2.default)("\n  (function (inner, awaitWrap) {\n    var iter = {}, waiting = false;\n\n    function pump(key, value) {\n      waiting = true;\n      value = new Promise(function (resolve) { resolve(inner[key](value)); });\n      return { done: false, value: awaitWrap(value) };\n    };\n\n    if (typeof Symbol === \"function\" && Symbol.iterator) {\n      iter[Symbol.iterator] = function () { return this; };\n    }\n\n    iter.next = function (value) {\n      if (waiting) {\n        waiting = false;\n        return value;\n      }\n      return pump(\"next\", value);\n    };\n\n    if (typeof inner.throw === \"function\") {\n      iter.throw = function (value) {\n        if (waiting) {\n          waiting = false;\n          throw value;\n        }\n        return pump(\"throw\", value);\n      };\n    }\n\n    if (typeof inner.return === \"function\") {\n      iter.return = function (value) {\n        return pump(\"return\", value);\n      };\n    }\n\n    return iter;\n  })\n");

  helpers.asyncToGenerator = (0, _babelTemplate2.default)("\n  (function (fn) {\n    return function () {\n      var gen = fn.apply(this, arguments);\n      return new Promise(function (resolve, reject) {\n        function step(key, arg) {\n          try {\n            var info = gen[key](arg);\n            var value = info.value;\n          } catch (error) {\n            reject(error);\n            return;\n          }\n\n          if (info.done) {\n            resolve(value);\n          } else {\n            return Promise.resolve(value).then(function (value) {\n              step(\"next\", value);\n            }, function (err) {\n              step(\"throw\", err);\n            });\n          }\n        }\n\n        return step(\"next\");\n      });\n    };\n  })\n");

  helpers.classCallCheck = (0, _babelTemplate2.default)("\n  (function (instance, Constructor) {\n    if (!(instance instanceof Constructor)) {\n      throw new TypeError(\"Cannot call a class as a function\");\n    }\n  });\n");

  helpers.createClass = (0, _babelTemplate2.default)("\n  (function() {\n    function defineProperties(target, props) {\n      for (var i = 0; i < props.length; i ++) {\n        var descriptor = props[i];\n        descriptor.enumerable = descriptor.enumerable || false;\n        descriptor.configurable = true;\n        if (\"value\" in descriptor) descriptor.writable = true;\n        Object.defineProperty(target, descriptor.key, descriptor);\n      }\n    }\n\n    return function (Constructor, protoProps, staticProps) {\n      if (protoProps) defineProperties(Constructor.prototype, protoProps);\n      if (staticProps) defineProperties(Constructor, staticProps);\n      return Constructor;\n    };\n  })()\n");

  helpers.defineEnumerableProperties = (0, _babelTemplate2.default)("\n  (function (obj, descs) {\n    for (var key in descs) {\n      var desc = descs[key];\n      desc.configurable = desc.enumerable = true;\n      if (\"value\" in desc) desc.writable = true;\n      Object.defineProperty(obj, key, desc);\n    }\n    return obj;\n  })\n");

  helpers.defaults = (0, _babelTemplate2.default)("\n  (function (obj, defaults) {\n    var keys = Object.getOwnPropertyNames(defaults);\n    for (var i = 0; i < keys.length; i++) {\n      var key = keys[i];\n      var value = Object.getOwnPropertyDescriptor(defaults, key);\n      if (value && value.configurable && obj[key] === undefined) {\n        Object.defineProperty(obj, key, value);\n      }\n    }\n    return obj;\n  })\n");

  helpers.defineProperty = (0, _babelTemplate2.default)("\n  (function (obj, key, value) {\n    // Shortcircuit the slow defineProperty path when possible.\n    // We are trying to avoid issues where setters defined on the\n    // prototype cause side effects under the fast path of simple\n    // assignment. By checking for existence of the property with\n    // the in operator, we can optimize most of this overhead away.\n    if (key in obj) {\n      Object.defineProperty(obj, key, {\n        value: value,\n        enumerable: true,\n        configurable: true,\n        writable: true\n      });\n    } else {\n      obj[key] = value;\n    }\n    return obj;\n  });\n");

  helpers.extends = (0, _babelTemplate2.default)("\n  Object.assign || (function (target) {\n    for (var i = 1; i < arguments.length; i++) {\n      var source = arguments[i];\n      for (var key in source) {\n        if (Object.prototype.hasOwnProperty.call(source, key)) {\n          target[key] = source[key];\n        }\n      }\n    }\n    return target;\n  })\n");

  helpers.get = (0, _babelTemplate2.default)("\n  (function get(object, property, receiver) {\n    if (object === null) object = Function.prototype;\n\n    var desc = Object.getOwnPropertyDescriptor(object, property);\n\n    if (desc === undefined) {\n      var parent = Object.getPrototypeOf(object);\n\n      if (parent === null) {\n        return undefined;\n      } else {\n        return get(parent, property, receiver);\n      }\n    } else if (\"value\" in desc) {\n      return desc.value;\n    } else {\n      var getter = desc.get;\n\n      if (getter === undefined) {\n        return undefined;\n      }\n\n      return getter.call(receiver);\n    }\n  });\n");

  helpers.inherits = (0, _babelTemplate2.default)("\n  (function (subClass, superClass) {\n    if (typeof superClass !== \"function\" && superClass !== null) {\n      throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass);\n    }\n    subClass.prototype = Object.create(superClass && superClass.prototype, {\n      constructor: {\n        value: subClass,\n        enumerable: false,\n        writable: true,\n        configurable: true\n      }\n    });\n    if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;\n  })\n");

  helpers.instanceof = (0, _babelTemplate2.default)("\n  (function (left, right) {\n    if (right != null && typeof Symbol !== \"undefined\" && right[Symbol.hasInstance]) {\n      return right[Symbol.hasInstance](left);\n    } else {\n      return left instanceof right;\n    }\n  });\n");

  helpers.interopRequireDefault = (0, _babelTemplate2.default)("\n  (function (obj) {\n    return obj && obj.__esModule ? obj : { default: obj };\n  })\n");

  helpers.interopRequireWildcard = (0, _babelTemplate2.default)("\n  (function (obj) {\n    if (obj && obj.__esModule) {\n      return obj;\n    } else {\n      var newObj = {};\n      if (obj != null) {\n        for (var key in obj) {\n          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];\n        }\n      }\n      newObj.default = obj;\n      return newObj;\n    }\n  })\n");

  helpers.newArrowCheck = (0, _babelTemplate2.default)("\n  (function (innerThis, boundThis) {\n    if (innerThis !== boundThis) {\n      throw new TypeError(\"Cannot instantiate an arrow function\");\n    }\n  });\n");

  helpers.objectDestructuringEmpty = (0, _babelTemplate2.default)("\n  (function (obj) {\n    if (obj == null) throw new TypeError(\"Cannot destructure undefined\");\n  });\n");

  helpers.objectWithoutProperties = (0, _babelTemplate2.default)("\n  (function (obj, keys) {\n    var target = {};\n    for (var i in obj) {\n      if (keys.indexOf(i) >= 0) continue;\n      if (!Object.prototype.hasOwnProperty.call(obj, i)) continue;\n      target[i] = obj[i];\n    }\n    return target;\n  })\n");

  helpers.possibleConstructorReturn = (0, _babelTemplate2.default)("\n  (function (self, call) {\n    if (!self) {\n      throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n    }\n    return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self;\n  });\n");

  helpers.selfGlobal = (0, _babelTemplate2.default)("\n  typeof global === \"undefined\" ? self : global\n");

  helpers.set = (0, _babelTemplate2.default)("\n  (function set(object, property, value, receiver) {\n    var desc = Object.getOwnPropertyDescriptor(object, property);\n\n    if (desc === undefined) {\n      var parent = Object.getPrototypeOf(object);\n\n      if (parent !== null) {\n        set(parent, property, value, receiver);\n      }\n    } else if (\"value\" in desc && desc.writable) {\n      desc.value = value;\n    } else {\n      var setter = desc.set;\n\n      if (setter !== undefined) {\n        setter.call(receiver, value);\n      }\n    }\n\n    return value;\n  });\n");

  helpers.slicedToArray = (0, _babelTemplate2.default)("\n  (function () {\n    // Broken out into a separate function to avoid deoptimizations due to the try/catch for the\n    // array iterator case.\n    function sliceIterator(arr, i) {\n      // this is an expanded form of `for...of` that properly supports abrupt completions of\n      // iterators etc. variable names have been minimised to reduce the size of this massive\n      // helper. sometimes spec compliancy is annoying :(\n      //\n      // _n = _iteratorNormalCompletion\n      // _d = _didIteratorError\n      // _e = _iteratorError\n      // _i = _iterator\n      // _s = _step\n\n      var _arr = [];\n      var _n = true;\n      var _d = false;\n      var _e = undefined;\n      try {\n        for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {\n          _arr.push(_s.value);\n          if (i && _arr.length === i) break;\n        }\n      } catch (err) {\n        _d = true;\n        _e = err;\n      } finally {\n        try {\n          if (!_n && _i[\"return\"]) _i[\"return\"]();\n        } finally {\n          if (_d) throw _e;\n        }\n      }\n      return _arr;\n    }\n\n    return function (arr, i) {\n      if (Array.isArray(arr)) {\n        return arr;\n      } else if (Symbol.iterator in Object(arr)) {\n        return sliceIterator(arr, i);\n      } else {\n        throw new TypeError(\"Invalid attempt to destructure non-iterable instance\");\n      }\n    };\n  })();\n");

  helpers.slicedToArrayLoose = (0, _babelTemplate2.default)("\n  (function (arr, i) {\n    if (Array.isArray(arr)) {\n      return arr;\n    } else if (Symbol.iterator in Object(arr)) {\n      var _arr = [];\n      for (var _iterator = arr[Symbol.iterator](), _step; !(_step = _iterator.next()).done;) {\n        _arr.push(_step.value);\n        if (i && _arr.length === i) break;\n      }\n      return _arr;\n    } else {\n      throw new TypeError(\"Invalid attempt to destructure non-iterable instance\");\n    }\n  });\n");

  helpers.taggedTemplateLiteral = (0, _babelTemplate2.default)("\n  (function (strings, raw) {\n    return Object.freeze(Object.defineProperties(strings, {\n        raw: { value: Object.freeze(raw) }\n    }));\n  });\n");

  helpers.taggedTemplateLiteralLoose = (0, _babelTemplate2.default)("\n  (function (strings, raw) {\n    strings.raw = raw;\n    return strings;\n  });\n");

  helpers.temporalRef = (0, _babelTemplate2.default)("\n  (function (val, name, undef) {\n    if (val === undef) {\n      throw new ReferenceError(name + \" is not defined - temporal dead zone\");\n    } else {\n      return val;\n    }\n  })\n");

  helpers.temporalUndefined = (0, _babelTemplate2.default)("\n  ({})\n");

  helpers.toArray = (0, _babelTemplate2.default)("\n  (function (arr) {\n    return Array.isArray(arr) ? arr : Array.from(arr);\n  });\n");

  helpers.toConsumableArray = (0, _babelTemplate2.default)("\n  (function (arr) {\n    if (Array.isArray(arr)) {\n      for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];\n      return arr2;\n    } else {\n      return Array.from(arr);\n    }\n  });\n");
  module.exports = exports["default"];
});
$__System.registerDynamic("d", ["15", "14"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.list = undefined;

  var _keys = $__require("15");

  var _keys2 = _interopRequireDefault(_keys);

  exports.get = get;

  var _helpers = $__require("14");

  var _helpers2 = _interopRequireDefault(_helpers);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function get(name) {
    var fn = _helpers2.default[name];
    if (!fn) throw new ReferenceError("Unknown helper " + name);

    return fn().expression;
  }

  var list = exports.list = (0, _keys2.default)(_helpers2.default).map(function (name) {
    return name.replace(/^_/, "");
  }).filter(function (name) {
    return name !== "__esModule";
  });

  exports.default = get;
});
$__System.registerDynamic("16", ["17", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.ImportDeclaration = exports.ModuleDeclaration = undefined;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.ExportDeclaration = ExportDeclaration;
  exports.Scope = Scope;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var ModuleDeclaration = exports.ModuleDeclaration = {
    enter: function enter(path, file) {
      var node = path.node;

      if (node.source) {
        node.source.value = file.resolveModuleSource(node.source.value);
      }
    }
  };

  var ImportDeclaration = exports.ImportDeclaration = {
    exit: function exit(path, file) {
      var node = path.node;

      var specifiers = [];
      var imported = [];
      file.metadata.modules.imports.push({
        source: node.source.value,
        imported: imported,
        specifiers: specifiers
      });

      for (var _iterator = path.get("specifiers"), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var specifier = _ref;

        var local = specifier.node.local.name;

        if (specifier.isImportDefaultSpecifier()) {
          imported.push("default");
          specifiers.push({
            kind: "named",
            imported: "default",
            local: local
          });
        }

        if (specifier.isImportSpecifier()) {
          var importedName = specifier.node.imported.name;
          imported.push(importedName);
          specifiers.push({
            kind: "named",
            imported: importedName,
            local: local
          });
        }

        if (specifier.isImportNamespaceSpecifier()) {
          imported.push("*");
          specifiers.push({
            kind: "namespace",
            local: local
          });
        }
      }
    }
  };

  function ExportDeclaration(path, file) {
    var node = path.node;

    var source = node.source ? node.source.value : null;
    var exports = file.metadata.modules.exports;

    var declar = path.get("declaration");
    if (declar.isStatement()) {
      var bindings = declar.getBindingIdentifiers();

      for (var name in bindings) {
        exports.exported.push(name);
        exports.specifiers.push({
          kind: "local",
          local: name,
          exported: path.isExportDefaultDeclaration() ? "default" : name
        });
      }
    }

    if (path.isExportNamedDeclaration() && node.specifiers) {
      for (var _iterator2 = node.specifiers, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var specifier = _ref2;

        var exported = specifier.exported.name;
        exports.exported.push(exported);

        if (t.isExportDefaultSpecifier(specifier)) {
          exports.specifiers.push({
            kind: "external",
            local: exported,
            exported: exported,
            source: source
          });
        }

        if (t.isExportNamespaceSpecifier(specifier)) {
          exports.specifiers.push({
            kind: "external-namespace",
            exported: exported,
            source: source
          });
        }

        var local = specifier.local;
        if (!local) continue;

        if (source) {
          exports.specifiers.push({
            kind: "external",
            local: local.name,
            exported: exported,
            source: source
          });
        }

        if (!source) {
          exports.specifiers.push({
            kind: "local",
            local: local.name,
            exported: exported
          });
        }
      }
    }

    if (path.isExportAllDeclaration()) {
      exports.specifiers.push({
        kind: "external-all",
        source: source
      });
    }
  }

  function Scope(path) {
    path.skip();
  }
});
$__System.registerDynamic('18', ['19', '1a', '1b'], true, function ($__require, exports, module) {
  'use strict';

  var Buffer = $__require('1b');
  var global = this || self,
      GLOBAL = global;
  var fs = $__require('19');
  var path = $__require('1a');

  Object.defineProperty(exports, 'commentRegex', {
    get: function getCommentRegex() {
      return (/^\s*\/(?:\/|\*)[@#]\s+sourceMappingURL=data:(?:application|text)\/json;(?:charset[:=]\S+?;)?base64,(?:.*)$/mg
      );
    }
  });

  Object.defineProperty(exports, 'mapFileCommentRegex', {
    get: function getMapFileCommentRegex() {
      //Example (Extra space between slashes added to solve Safari bug. Exclude space in production):
      //     / /# sourceMappingURL=foo.js.map           /*# sourceMappingURL=foo.js.map */
      return (/(?:\/\/[@#][ \t]+sourceMappingURL=([^\s'"]+?)[ \t]*$)|(?:\/\*[@#][ \t]+sourceMappingURL=([^\*]+?)[ \t]*(?:\*\/){1}[ \t]*$)/mg
      );
    }
  });

  function decodeBase64(base64) {
    return new Buffer(base64, 'base64').toString();
  }

  function stripComment(sm) {
    return sm.split(',').pop();
  }

  function readFromFileMap(sm, dir) {
    // NOTE: this will only work on the server since it attempts to read the map file

    var r = exports.mapFileCommentRegex.exec(sm);

    // for some odd reason //# .. captures in 1 and /* .. */ in 2
    var filename = r[1] || r[2];
    var filepath = path.resolve(dir, filename);

    try {
      return fs.readFileSync(filepath, 'utf8');
    } catch (e) {
      throw new Error('An error occurred while trying to read the map file at ' + filepath + '\n' + e);
    }
  }

  function Converter(sm, opts) {
    opts = opts || {};

    if (opts.isFileComment) sm = readFromFileMap(sm, opts.commentFileDir);
    if (opts.hasComment) sm = stripComment(sm);
    if (opts.isEncoded) sm = decodeBase64(sm);
    if (opts.isJSON || opts.isEncoded) sm = JSON.parse(sm);

    this.sourcemap = sm;
  }

  Converter.prototype.toJSON = function (space) {
    return JSON.stringify(this.sourcemap, null, space);
  };

  Converter.prototype.toBase64 = function () {
    var json = this.toJSON();
    return new Buffer(json).toString('base64');
  };

  Converter.prototype.toComment = function (options) {
    var base64 = this.toBase64();
    var data = 'sourceMappingURL=data:application/json;charset=utf-8;base64,' + base64;
    return options && options.multiline ? '/*# ' + data + ' */' : '//# ' + data;
  };

  // returns copy instead of original
  Converter.prototype.toObject = function () {
    return JSON.parse(this.toJSON());
  };

  Converter.prototype.addProperty = function (key, value) {
    if (this.sourcemap.hasOwnProperty(key)) throw new Error('property %s already exists on the sourcemap, use set property instead');
    return this.setProperty(key, value);
  };

  Converter.prototype.setProperty = function (key, value) {
    this.sourcemap[key] = value;
    return this;
  };

  Converter.prototype.getProperty = function (key) {
    return this.sourcemap[key];
  };

  exports.fromObject = function (obj) {
    return new Converter(obj);
  };

  exports.fromJSON = function (json) {
    return new Converter(json, { isJSON: true });
  };

  exports.fromBase64 = function (base64) {
    return new Converter(base64, { isEncoded: true });
  };

  exports.fromComment = function (comment) {
    comment = comment.replace(/^\/\*/g, '//').replace(/\*\/$/g, '');

    return new Converter(comment, { isEncoded: true, hasComment: true });
  };

  exports.fromMapFileComment = function (comment, dir) {
    return new Converter(comment, { commentFileDir: dir, isFileComment: true, isJSON: true });
  };

  // Finds last sourcemap comment in file or returns null if none was found
  exports.fromSource = function (content) {
    var m = content.match(exports.commentRegex);
    return m ? exports.fromComment(m.pop()) : null;
  };

  // Finds last sourcemap comment in file or returns null if none was found
  exports.fromMapFileSource = function (content, dir) {
    var m = content.match(exports.mapFileCommentRegex);
    return m ? exports.fromMapFileComment(m.pop(), dir) : null;
  };

  exports.removeComments = function (src) {
    return src.replace(exports.commentRegex, '');
  };

  exports.removeMapFileComments = function (src) {
    return src.replace(exports.mapFileCommentRegex, '');
  };

  exports.generateMapFileComment = function (file, options) {
    var data = 'sourceMappingURL=' + file;
    return options && options.multiline ? '/*# ' + data + ' */' : '//# ' + data;
  };
});
$__System.registerDynamic("1c", ["1f", "20", "21", "1d", "1e", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _possibleConstructorReturn2 = $__require("20");

  var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

  var _inherits2 = $__require("21");

  var _inherits3 = _interopRequireDefault(_inherits2);

  var _store = $__require("1d");

  var _store2 = _interopRequireDefault(_store);

  var _file5 = $__require("1e");

  var _file6 = _interopRequireDefault(_file5);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var PluginPass = function (_Store) {
    (0, _inherits3.default)(PluginPass, _Store);

    function PluginPass(file, plugin) {
      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
      (0, _classCallCheck3.default)(this, PluginPass);

      var _this = (0, _possibleConstructorReturn3.default)(this, _Store.call(this));

      _this.plugin = plugin;
      _this.key = plugin.key;
      _this.file = file;
      _this.opts = options;
      return _this;
    }

    PluginPass.prototype.addHelper = function addHelper() {
      var _file;

      return (_file = this.file).addHelper.apply(_file, arguments);
    };

    PluginPass.prototype.addImport = function addImport() {
      var _file2;

      return (_file2 = this.file).addImport.apply(_file2, arguments);
    };

    PluginPass.prototype.getModuleName = function getModuleName() {
      var _file3;

      return (_file3 = this.file).getModuleName.apply(_file3, arguments);
    };

    PluginPass.prototype.buildCodeFrameError = function buildCodeFrameError() {
      var _file4;

      return (_file4 = this.file).buildCodeFrameError.apply(_file4, arguments);
    };

    return PluginPass;
  }(_store2.default);

  exports.default = PluginPass;
  module.exports = exports["default"];
});
$__System.registerDynamic('22', [], true, function ($__require, exports, module) {
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	module.exports = Number.isNaN || function (x) {
		return x !== x;
	};
});
$__System.registerDynamic('23', ['22'], true, function ($__require, exports, module) {
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	var numberIsNan = $__require('22');

	module.exports = Number.isFinite || function (val) {
		return !(typeof val !== 'number' || numberIsNan(val) || val === Infinity || val === -Infinity);
	};
});
$__System.registerDynamic('24', ['23'], true, function ($__require, exports, module) {
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	var isFinite = $__require('23');

	module.exports = function (str, n) {
		if (typeof str !== 'string') {
			throw new TypeError('Expected `input` to be a string');
		}

		if (n < 0 || !isFinite(n)) {
			throw new TypeError('Expected `count` to be a positive finite number');
		}

		var ret = '';

		do {
			if (n & 1) {
				ret += str;
			}

			str += str;
		} while (n >>= 1);

		return ret;
	};
});
$__System.registerDynamic('25', ['24'], true, function ($__require, exports, module) {
	/* eslint-disable guard-for-in */
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	var repeating = $__require('24');

	// detect either spaces or tabs but not both to properly handle tabs
	// for indentation and spaces for alignment
	var INDENT_RE = /^(?:( )+|\t+)/;

	function getMostUsed(indents) {
		var result = 0;
		var maxUsed = 0;
		var maxWeight = 0;

		for (var n in indents) {
			var indent = indents[n];
			var u = indent[0];
			var w = indent[1];

			if (u > maxUsed || u === maxUsed && w > maxWeight) {
				maxUsed = u;
				maxWeight = w;
				result = Number(n);
			}
		}

		return result;
	}

	module.exports = function (str) {
		if (typeof str !== 'string') {
			throw new TypeError('Expected a string');
		}

		// used to see if tabs or spaces are the most used
		var tabs = 0;
		var spaces = 0;

		// remember the size of previous line's indentation
		var prev = 0;

		// remember how many indents/unindents as occurred for a given size
		// and how much lines follow a given indentation
		//
		// indents = {
		//    3: [1, 0],
		//    4: [1, 5],
		//    5: [1, 0],
		//   12: [1, 0],
		// }
		var indents = {};

		// pointer to the array of last used indent
		var current;

		// whether the last action was an indent (opposed to an unindent)
		var isIndent;

		str.split(/\n/g).forEach(function (line) {
			if (!line) {
				// ignore empty lines
				return;
			}

			var indent;
			var matches = line.match(INDENT_RE);

			if (!matches) {
				indent = 0;
			} else {
				indent = matches[0].length;

				if (matches[1]) {
					spaces++;
				} else {
					tabs++;
				}
			}

			var diff = indent - prev;
			prev = indent;

			if (diff) {
				// an indent or unindent has been detected

				isIndent = diff > 0;

				current = indents[isIndent ? diff : -diff];

				if (current) {
					current[0]++;
				} else {
					current = indents[diff] = [1, 0];
				}
			} else if (current) {
				// if the last action was an indent, increment the weight
				current[1] += Number(isIndent);
			}
		});

		var amount = getMostUsed(indents);

		var type;
		var actual;
		if (!amount) {
			type = null;
			actual = '';
		} else if (spaces >= tabs) {
			type = 'space';
			actual = repeating(' ', amount);
		} else {
			type = 'tab';
			actual = repeating('\t', amount);
		}

		return {
			amount: amount,
			type: type,
			indent: actual
		};
	};
});
$__System.registerDynamic("26", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /* -*- Mode: js; js-indent-level: 2; -*- */
  /*
   * Copyright 2011 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE or:
   * http://opensource.org/licenses/BSD-3-Clause
   */

  exports.GREATEST_LOWER_BOUND = 1;
  exports.LEAST_UPPER_BOUND = 2;

  /**
   * Recursive implementation of binary search.
   *
   * @param aLow Indices here and lower do not contain the needle.
   * @param aHigh Indices here and higher do not contain the needle.
   * @param aNeedle The element being searched for.
   * @param aHaystack The non-empty array being searched.
   * @param aCompare Function which takes two elements and returns -1, 0, or 1.
   * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
   *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
   *     closest element that is smaller than or greater than the one we are
   *     searching for, respectively, if the exact element cannot be found.
   */
  function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
    // This function terminates when one of the following is true:
    //
    //   1. We find the exact element we are looking for.
    //
    //   2. We did not find the exact element, but we can return the index of
    //      the next-closest element.
    //
    //   3. We did not find the exact element, and there is no next-closest
    //      element than the one we are searching for, so we return -1.
    var mid = Math.floor((aHigh - aLow) / 2) + aLow;
    var cmp = aCompare(aNeedle, aHaystack[mid], true);
    if (cmp === 0) {
      // Found the element we are looking for.
      return mid;
    } else if (cmp > 0) {
      // Our needle is greater than aHaystack[mid].
      if (aHigh - mid > 1) {
        // The element is in the upper half.
        return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);
      }

      // The exact needle element was not found in this haystack. Determine if
      // we are in termination case (3) or (2) and return the appropriate thing.
      if (aBias == exports.LEAST_UPPER_BOUND) {
        return aHigh < aHaystack.length ? aHigh : -1;
      } else {
        return mid;
      }
    } else {
      // Our needle is less than aHaystack[mid].
      if (mid - aLow > 1) {
        // The element is in the lower half.
        return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);
      }

      // we are in termination case (3) or (2) and return the appropriate thing.
      if (aBias == exports.LEAST_UPPER_BOUND) {
        return mid;
      } else {
        return aLow < 0 ? -1 : aLow;
      }
    }
  }

  /**
   * This is an implementation of binary search which will always try and return
   * the index of the closest element if there is no exact hit. This is because
   * mappings between original and generated line/col pairs are single points,
   * and there is an implicit region between each of them, so a miss just means
   * that you aren't on the very start of a region.
   *
   * @param aNeedle The element you are looking for.
   * @param aHaystack The array that is being searched.
   * @param aCompare A function which takes the needle and an element in the
   *     array and returns -1, 0, or 1 depending on whether the needle is less
   *     than, equal to, or greater than the element, respectively.
   * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
   *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
   *     closest element that is smaller than or greater than the one we are
   *     searching for, respectively, if the exact element cannot be found.
   *     Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
   */
  exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
    if (aHaystack.length === 0) {
      return -1;
    }

    var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare, aBias || exports.GREATEST_LOWER_BOUND);
    if (index < 0) {
      return -1;
    }

    // We have found either the exact element, or the next-closest element than
    // the one we are searching for. However, there may be more than one such
    // element. Make sure we always return the smallest of these.
    while (index - 1 >= 0) {
      if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
        break;
      }
      --index;
    }

    return index;
  };
});
$__System.registerDynamic("27", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /* -*- Mode: js; js-indent-level: 2; -*- */
  /*
   * Copyright 2011 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE or:
   * http://opensource.org/licenses/BSD-3-Clause
   */

  // It turns out that some (most?) JavaScript engines don't self-host
  // `Array.prototype.sort`. This makes sense because C++ will likely remain
  // faster than JS when doing raw CPU-intensive sorting. However, when using a
  // custom comparator function, calling back and forth between the VM's C++ and
  // JIT'd JS is rather slow *and* loses JIT type information, resulting in
  // worse generated code for the comparator function than would be optimal. In
  // fact, when sorting with a comparator, these costs outweigh the benefits of
  // sorting in C++. By using our own JS-implemented Quick Sort (below), we get
  // a ~3500ms mean speed-up in `bench/bench.html`.

  /**
   * Swap the elements indexed by `x` and `y` in the array `ary`.
   *
   * @param {Array} ary
   *        The array.
   * @param {Number} x
   *        The index of the first item.
   * @param {Number} y
   *        The index of the second item.
   */
  function swap(ary, x, y) {
    var temp = ary[x];
    ary[x] = ary[y];
    ary[y] = temp;
  }

  /**
   * Returns a random integer within the range `low .. high` inclusive.
   *
   * @param {Number} low
   *        The lower bound on the range.
   * @param {Number} high
   *        The upper bound on the range.
   */
  function randomIntInRange(low, high) {
    return Math.round(low + Math.random() * (high - low));
  }

  /**
   * The Quick Sort algorithm.
   *
   * @param {Array} ary
   *        An array to sort.
   * @param {function} comparator
   *        Function to use to compare two items.
   * @param {Number} p
   *        Start index of the array
   * @param {Number} r
   *        End index of the array
   */
  function doQuickSort(ary, comparator, p, r) {
    // If our lower bound is less than our upper bound, we (1) partition the
    // array into two pieces and (2) recurse on each half. If it is not, this is
    // the empty array and our base case.

    if (p < r) {
      // (1) Partitioning.
      //
      // The partitioning chooses a pivot between `p` and `r` and moves all
      // elements that are less than or equal to the pivot to the before it, and
      // all the elements that are greater than it after it. The effect is that
      // once partition is done, the pivot is in the exact place it will be when
      // the array is put in sorted order, and it will not need to be moved
      // again. This runs in O(n) time.

      // Always choose a random pivot so that an input array which is reverse
      // sorted does not cause O(n^2) running time.
      var pivotIndex = randomIntInRange(p, r);
      var i = p - 1;

      swap(ary, pivotIndex, r);
      var pivot = ary[r];

      // Immediately after `j` is incremented in this loop, the following hold
      // true:
      //
      //   * Every element in `ary[p .. i]` is less than or equal to the pivot.
      //
      //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
      for (var j = p; j < r; j++) {
        if (comparator(ary[j], pivot) <= 0) {
          i += 1;
          swap(ary, i, j);
        }
      }

      swap(ary, i + 1, j);
      var q = i + 1;

      // (2) Recurse on each half.

      doQuickSort(ary, comparator, p, q - 1);
      doQuickSort(ary, comparator, q + 1, r);
    }
  }

  /**
   * Sort the given array in-place with the given comparator function.
   *
   * @param {Array} ary
   *        An array to sort.
   * @param {function} comparator
   *        Function to use to compare two items.
   */
  exports.quickSort = function (ary, comparator) {
    doQuickSort(ary, comparator, 0, ary.length - 1);
  };
});
$__System.registerDynamic('28', ['29', '26', '2a', '2b', '27'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /* -*- Mode: js; js-indent-level: 2; -*- */
  /*
   * Copyright 2011 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE or:
   * http://opensource.org/licenses/BSD-3-Clause
   */

  var util = $__require('29');
  var binarySearch = $__require('26');
  var ArraySet = $__require('2a').ArraySet;
  var base64VLQ = $__require('2b');
  var quickSort = $__require('27').quickSort;

  function SourceMapConsumer(aSourceMap) {
    var sourceMap = aSourceMap;
    if (typeof aSourceMap === 'string') {
      sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
    }

    return sourceMap.sections != null ? new IndexedSourceMapConsumer(sourceMap) : new BasicSourceMapConsumer(sourceMap);
  }

  SourceMapConsumer.fromSourceMap = function (aSourceMap) {
    return BasicSourceMapConsumer.fromSourceMap(aSourceMap);
  };

  /**
   * The version of the source mapping spec that we are consuming.
   */
  SourceMapConsumer.prototype._version = 3;

  // `__generatedMappings` and `__originalMappings` are arrays that hold the
  // parsed mapping coordinates from the source map's "mappings" attribute. They
  // are lazily instantiated, accessed via the `_generatedMappings` and
  // `_originalMappings` getters respectively, and we only parse the mappings
  // and create these arrays once queried for a source location. We jump through
  // these hoops because there can be many thousands of mappings, and parsing
  // them is expensive, so we only want to do it if we must.
  //
  // Each object in the arrays is of the form:
  //
  //     {
  //       generatedLine: The line number in the generated code,
  //       generatedColumn: The column number in the generated code,
  //       source: The path to the original source file that generated this
  //               chunk of code,
  //       originalLine: The line number in the original source that
  //                     corresponds to this chunk of generated code,
  //       originalColumn: The column number in the original source that
  //                       corresponds to this chunk of generated code,
  //       name: The name of the original symbol which generated this chunk of
  //             code.
  //     }
  //
  // All properties except for `generatedLine` and `generatedColumn` can be
  // `null`.
  //
  // `_generatedMappings` is ordered by the generated positions.
  //
  // `_originalMappings` is ordered by the original positions.

  SourceMapConsumer.prototype.__generatedMappings = null;
  Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {
    get: function () {
      if (!this.__generatedMappings) {
        this._parseMappings(this._mappings, this.sourceRoot);
      }

      return this.__generatedMappings;
    }
  });

  SourceMapConsumer.prototype.__originalMappings = null;
  Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {
    get: function () {
      if (!this.__originalMappings) {
        this._parseMappings(this._mappings, this.sourceRoot);
      }

      return this.__originalMappings;
    }
  });

  SourceMapConsumer.prototype._charIsMappingSeparator = function SourceMapConsumer_charIsMappingSeparator(aStr, index) {
    var c = aStr.charAt(index);
    return c === ";" || c === ",";
  };

  /**
   * Parse the mappings in a string in to a data structure which we can easily
   * query (the ordered arrays in the `this.__generatedMappings` and
   * `this.__originalMappings` properties).
   */
  SourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    throw new Error("Subclasses must implement _parseMappings");
  };

  SourceMapConsumer.GENERATED_ORDER = 1;
  SourceMapConsumer.ORIGINAL_ORDER = 2;

  SourceMapConsumer.GREATEST_LOWER_BOUND = 1;
  SourceMapConsumer.LEAST_UPPER_BOUND = 2;

  /**
   * Iterate over each mapping between an original source/line/column and a
   * generated line/column in this source map.
   *
   * @param Function aCallback
   *        The function that is called with each mapping.
   * @param Object aContext
   *        Optional. If specified, this object will be the value of `this` every
   *        time that `aCallback` is called.
   * @param aOrder
   *        Either `SourceMapConsumer.GENERATED_ORDER` or
   *        `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
   *        iterate over the mappings sorted by the generated file's line/column
   *        order or the original's source/line/column order, respectively. Defaults to
   *        `SourceMapConsumer.GENERATED_ORDER`.
   */
  SourceMapConsumer.prototype.eachMapping = function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
    var context = aContext || null;
    var order = aOrder || SourceMapConsumer.GENERATED_ORDER;

    var mappings;
    switch (order) {
      case SourceMapConsumer.GENERATED_ORDER:
        mappings = this._generatedMappings;
        break;
      case SourceMapConsumer.ORIGINAL_ORDER:
        mappings = this._originalMappings;
        break;
      default:
        throw new Error("Unknown order of iteration.");
    }

    var sourceRoot = this.sourceRoot;
    mappings.map(function (mapping) {
      var source = mapping.source === null ? null : this._sources.at(mapping.source);
      if (source != null && sourceRoot != null) {
        source = util.join(sourceRoot, source);
      }
      return {
        source: source,
        generatedLine: mapping.generatedLine,
        generatedColumn: mapping.generatedColumn,
        originalLine: mapping.originalLine,
        originalColumn: mapping.originalColumn,
        name: mapping.name === null ? null : this._names.at(mapping.name)
      };
    }, this).forEach(aCallback, context);
  };

  /**
   * Returns all generated line and column information for the original source,
   * line, and column provided. If no column is provided, returns all mappings
   * corresponding to a either the line we are searching for or the next
   * closest line that has any mappings. Otherwise, returns all mappings
   * corresponding to the given line and either the column we are searching for
   * or the next closest column that has any offsets.
   *
   * The only argument is an object with the following properties:
   *
   *   - source: The filename of the original source.
   *   - line: The line number in the original source.
   *   - column: Optional. the column number in the original source.
   *
   * and an array of objects is returned, each with the following properties:
   *
   *   - line: The line number in the generated source, or null.
   *   - column: The column number in the generated source, or null.
   */
  SourceMapConsumer.prototype.allGeneratedPositionsFor = function SourceMapConsumer_allGeneratedPositionsFor(aArgs) {
    var line = util.getArg(aArgs, 'line');

    // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping
    // returns the index of the closest mapping less than the needle. By
    // setting needle.originalColumn to 0, we thus find the last mapping for
    // the given line, provided such a mapping exists.
    var needle = {
      source: util.getArg(aArgs, 'source'),
      originalLine: line,
      originalColumn: util.getArg(aArgs, 'column', 0)
    };

    if (this.sourceRoot != null) {
      needle.source = util.relative(this.sourceRoot, needle.source);
    }
    if (!this._sources.has(needle.source)) {
      return [];
    }
    needle.source = this._sources.indexOf(needle.source);

    var mappings = [];

    var index = this._findMapping(needle, this._originalMappings, "originalLine", "originalColumn", util.compareByOriginalPositions, binarySearch.LEAST_UPPER_BOUND);
    if (index >= 0) {
      var mapping = this._originalMappings[index];

      if (aArgs.column === undefined) {
        var originalLine = mapping.originalLine;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we found. Since
        // mappings are sorted, this is guaranteed to find all mappings for
        // the line we found.
        while (mapping && mapping.originalLine === originalLine) {
          mappings.push({
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
          });

          mapping = this._originalMappings[++index];
        }
      } else {
        var originalColumn = mapping.originalColumn;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we were searching for.
        // Since mappings are sorted, this is guaranteed to find all mappings for
        // the line we are searching for.
        while (mapping && mapping.originalLine === line && mapping.originalColumn == originalColumn) {
          mappings.push({
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
          });

          mapping = this._originalMappings[++index];
        }
      }
    }

    return mappings;
  };

  exports.SourceMapConsumer = SourceMapConsumer;

  /**
   * A BasicSourceMapConsumer instance represents a parsed source map which we can
   * query for information about the original file positions by giving it a file
   * position in the generated source.
   *
   * The only parameter is the raw source map (either as a JSON string, or
   * already parsed to an object). According to the spec, source maps have the
   * following attributes:
   *
   *   - version: Which version of the source map spec this map is following.
   *   - sources: An array of URLs to the original source files.
   *   - names: An array of identifiers which can be referrenced by individual mappings.
   *   - sourceRoot: Optional. The URL root from which all sources are relative.
   *   - sourcesContent: Optional. An array of contents of the original source files.
   *   - mappings: A string of base64 VLQs which contain the actual mappings.
   *   - file: Optional. The generated file this source map is associated with.
   *
   * Here is an example source map, taken from the source map spec[0]:
   *
   *     {
   *       version : 3,
   *       file: "out.js",
   *       sourceRoot : "",
   *       sources: ["foo.js", "bar.js"],
   *       names: ["src", "maps", "are", "fun"],
   *       mappings: "AA,AB;;ABCDE;"
   *     }
   *
   * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
   */
  function BasicSourceMapConsumer(aSourceMap) {
    var sourceMap = aSourceMap;
    if (typeof aSourceMap === 'string') {
      sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
    }

    var version = util.getArg(sourceMap, 'version');
    var sources = util.getArg(sourceMap, 'sources');
    // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which
    // requires the array) to play nice here.
    var names = util.getArg(sourceMap, 'names', []);
    var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
    var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
    var mappings = util.getArg(sourceMap, 'mappings');
    var file = util.getArg(sourceMap, 'file', null);

    // Once again, Sass deviates from the spec and supplies the version as a
    // string rather than a number, so we use loose equality checking here.
    if (version != this._version) {
      throw new Error('Unsupported version: ' + version);
    }

    sources = sources.map(String)
    // Some source maps produce relative source paths like "./foo.js" instead of
    // "foo.js".  Normalize these first so that future comparisons will succeed.
    // See bugzil.la/1090768.
    .map(util.normalize)
    // Always ensure that absolute sources are internally stored relative to
    // the source root, if the source root is absolute. Not doing this would
    // be particularly problematic when the source root is a prefix of the
    // source (valid, but why??). See github issue #199 and bugzil.la/1188982.
    .map(function (source) {
      return sourceRoot && util.isAbsolute(sourceRoot) && util.isAbsolute(source) ? util.relative(sourceRoot, source) : source;
    });

    // Pass `true` below to allow duplicate names and sources. While source maps
    // are intended to be compressed and deduplicated, the TypeScript compiler
    // sometimes generates source maps with duplicates in them. See Github issue
    // #72 and bugzil.la/889492.
    this._names = ArraySet.fromArray(names.map(String), true);
    this._sources = ArraySet.fromArray(sources, true);

    this.sourceRoot = sourceRoot;
    this.sourcesContent = sourcesContent;
    this._mappings = mappings;
    this.file = file;
  }

  BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
  BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer;

  /**
   * Create a BasicSourceMapConsumer from a SourceMapGenerator.
   *
   * @param SourceMapGenerator aSourceMap
   *        The source map that will be consumed.
   * @returns BasicSourceMapConsumer
   */
  BasicSourceMapConsumer.fromSourceMap = function SourceMapConsumer_fromSourceMap(aSourceMap) {
    var smc = Object.create(BasicSourceMapConsumer.prototype);

    var names = smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
    var sources = smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
    smc.sourceRoot = aSourceMap._sourceRoot;
    smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), smc.sourceRoot);
    smc.file = aSourceMap._file;

    // Because we are modifying the entries (by converting string sources and
    // names to indices into the sources and names ArraySets), we have to make
    // a copy of the entry or else bad things happen. Shared mutable state
    // strikes again! See github issue #191.

    var generatedMappings = aSourceMap._mappings.toArray().slice();
    var destGeneratedMappings = smc.__generatedMappings = [];
    var destOriginalMappings = smc.__originalMappings = [];

    for (var i = 0, length = generatedMappings.length; i < length; i++) {
      var srcMapping = generatedMappings[i];
      var destMapping = new Mapping();
      destMapping.generatedLine = srcMapping.generatedLine;
      destMapping.generatedColumn = srcMapping.generatedColumn;

      if (srcMapping.source) {
        destMapping.source = sources.indexOf(srcMapping.source);
        destMapping.originalLine = srcMapping.originalLine;
        destMapping.originalColumn = srcMapping.originalColumn;

        if (srcMapping.name) {
          destMapping.name = names.indexOf(srcMapping.name);
        }

        destOriginalMappings.push(destMapping);
      }

      destGeneratedMappings.push(destMapping);
    }

    quickSort(smc.__originalMappings, util.compareByOriginalPositions);

    return smc;
  };

  /**
   * The version of the source mapping spec that we are consuming.
   */
  BasicSourceMapConsumer.prototype._version = 3;

  /**
   * The list of original sources.
   */
  Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', {
    get: function () {
      return this._sources.toArray().map(function (s) {
        return this.sourceRoot != null ? util.join(this.sourceRoot, s) : s;
      }, this);
    }
  });

  /**
   * Provide the JIT with a nice shape / hidden class.
   */
  function Mapping() {
    this.generatedLine = 0;
    this.generatedColumn = 0;
    this.source = null;
    this.originalLine = null;
    this.originalColumn = null;
    this.name = null;
  }

  /**
   * Parse the mappings in a string in to a data structure which we can easily
   * query (the ordered arrays in the `this.__generatedMappings` and
   * `this.__originalMappings` properties).
   */
  BasicSourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    var generatedLine = 1;
    var previousGeneratedColumn = 0;
    var previousOriginalLine = 0;
    var previousOriginalColumn = 0;
    var previousSource = 0;
    var previousName = 0;
    var length = aStr.length;
    var index = 0;
    var cachedSegments = {};
    var temp = {};
    var originalMappings = [];
    var generatedMappings = [];
    var mapping, str, segment, end, value;

    while (index < length) {
      if (aStr.charAt(index) === ';') {
        generatedLine++;
        index++;
        previousGeneratedColumn = 0;
      } else if (aStr.charAt(index) === ',') {
        index++;
      } else {
        mapping = new Mapping();
        mapping.generatedLine = generatedLine;

        // Because each offset is encoded relative to the previous one,
        // many segments often have the same encoding. We can exploit this
        // fact by caching the parsed variable length fields of each segment,
        // allowing us to avoid a second parse if we encounter the same
        // segment again.
        for (end = index; end < length; end++) {
          if (this._charIsMappingSeparator(aStr, end)) {
            break;
          }
        }
        str = aStr.slice(index, end);

        segment = cachedSegments[str];
        if (segment) {
          index += str.length;
        } else {
          segment = [];
          while (index < end) {
            base64VLQ.decode(aStr, index, temp);
            value = temp.value;
            index = temp.rest;
            segment.push(value);
          }

          if (segment.length === 2) {
            throw new Error('Found a source, but no line and column');
          }

          if (segment.length === 3) {
            throw new Error('Found a source and line, but no column');
          }

          cachedSegments[str] = segment;
        }

        // Generated column.
        mapping.generatedColumn = previousGeneratedColumn + segment[0];
        previousGeneratedColumn = mapping.generatedColumn;

        if (segment.length > 1) {
          // Original source.
          mapping.source = previousSource + segment[1];
          previousSource += segment[1];

          // Original line.
          mapping.originalLine = previousOriginalLine + segment[2];
          previousOriginalLine = mapping.originalLine;
          // Lines are stored 0-based
          mapping.originalLine += 1;

          // Original column.
          mapping.originalColumn = previousOriginalColumn + segment[3];
          previousOriginalColumn = mapping.originalColumn;

          if (segment.length > 4) {
            // Original name.
            mapping.name = previousName + segment[4];
            previousName += segment[4];
          }
        }

        generatedMappings.push(mapping);
        if (typeof mapping.originalLine === 'number') {
          originalMappings.push(mapping);
        }
      }
    }

    quickSort(generatedMappings, util.compareByGeneratedPositionsDeflated);
    this.__generatedMappings = generatedMappings;

    quickSort(originalMappings, util.compareByOriginalPositions);
    this.__originalMappings = originalMappings;
  };

  /**
   * Find the mapping that best matches the hypothetical "needle" mapping that
   * we are searching for in the given "haystack" of mappings.
   */
  BasicSourceMapConsumer.prototype._findMapping = function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, aColumnName, aComparator, aBias) {
    // To return the position we are searching for, we must first find the
    // mapping for the given position and then return the opposite position it
    // points to. Because the mappings are sorted, we can use binary search to
    // find the best mapping.

    if (aNeedle[aLineName] <= 0) {
      throw new TypeError('Line must be greater than or equal to 1, got ' + aNeedle[aLineName]);
    }
    if (aNeedle[aColumnName] < 0) {
      throw new TypeError('Column must be greater than or equal to 0, got ' + aNeedle[aColumnName]);
    }

    return binarySearch.search(aNeedle, aMappings, aComparator, aBias);
  };

  /**
   * Compute the last column for each generated mapping. The last column is
   * inclusive.
   */
  BasicSourceMapConsumer.prototype.computeColumnSpans = function SourceMapConsumer_computeColumnSpans() {
    for (var index = 0; index < this._generatedMappings.length; ++index) {
      var mapping = this._generatedMappings[index];

      // Mappings do not contain a field for the last generated columnt. We
      // can come up with an optimistic estimate, however, by assuming that
      // mappings are contiguous (i.e. given two consecutive mappings, the
      // first mapping ends where the second one starts).
      if (index + 1 < this._generatedMappings.length) {
        var nextMapping = this._generatedMappings[index + 1];

        if (mapping.generatedLine === nextMapping.generatedLine) {
          mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1;
          continue;
        }
      }

      // The last mapping for each line spans the entire line.
      mapping.lastGeneratedColumn = Infinity;
    }
  };

  /**
   * Returns the original source, line, and column information for the generated
   * source's line and column positions provided. The only argument is an object
   * with the following properties:
   *
   *   - line: The line number in the generated source.
   *   - column: The column number in the generated source.
   *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
   *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
   *     closest element that is smaller than or greater than the one we are
   *     searching for, respectively, if the exact element cannot be found.
   *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
   *
   * and an object is returned with the following properties:
   *
   *   - source: The original source file, or null.
   *   - line: The line number in the original source, or null.
   *   - column: The column number in the original source, or null.
   *   - name: The original identifier, or null.
   */
  BasicSourceMapConsumer.prototype.originalPositionFor = function SourceMapConsumer_originalPositionFor(aArgs) {
    var needle = {
      generatedLine: util.getArg(aArgs, 'line'),
      generatedColumn: util.getArg(aArgs, 'column')
    };

    var index = this._findMapping(needle, this._generatedMappings, "generatedLine", "generatedColumn", util.compareByGeneratedPositionsDeflated, util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND));

    if (index >= 0) {
      var mapping = this._generatedMappings[index];

      if (mapping.generatedLine === needle.generatedLine) {
        var source = util.getArg(mapping, 'source', null);
        if (source !== null) {
          source = this._sources.at(source);
          if (this.sourceRoot != null) {
            source = util.join(this.sourceRoot, source);
          }
        }
        var name = util.getArg(mapping, 'name', null);
        if (name !== null) {
          name = this._names.at(name);
        }
        return {
          source: source,
          line: util.getArg(mapping, 'originalLine', null),
          column: util.getArg(mapping, 'originalColumn', null),
          name: name
        };
      }
    }

    return {
      source: null,
      line: null,
      column: null,
      name: null
    };
  };

  /**
   * Return true if we have the source content for every source in the source
   * map, false otherwise.
   */
  BasicSourceMapConsumer.prototype.hasContentsOfAllSources = function BasicSourceMapConsumer_hasContentsOfAllSources() {
    if (!this.sourcesContent) {
      return false;
    }
    return this.sourcesContent.length >= this._sources.size() && !this.sourcesContent.some(function (sc) {
      return sc == null;
    });
  };

  /**
   * Returns the original source content. The only argument is the url of the
   * original source file. Returns null if no original source content is
   * available.
   */
  BasicSourceMapConsumer.prototype.sourceContentFor = function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
    if (!this.sourcesContent) {
      return null;
    }

    if (this.sourceRoot != null) {
      aSource = util.relative(this.sourceRoot, aSource);
    }

    if (this._sources.has(aSource)) {
      return this.sourcesContent[this._sources.indexOf(aSource)];
    }

    var url;
    if (this.sourceRoot != null && (url = util.urlParse(this.sourceRoot))) {
      // XXX: file:// URIs and absolute paths lead to unexpected behavior for
      // many users. We can help them out when they expect file:// URIs to
      // behave like it would if they were running a local HTTP server. See
      // https://bugzilla.mozilla.org/show_bug.cgi?id=885597.
      var fileUriAbsPath = aSource.replace(/^file:\/\//, "");
      if (url.scheme == "file" && this._sources.has(fileUriAbsPath)) {
        return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)];
      }

      if ((!url.path || url.path == "/") && this._sources.has("/" + aSource)) {
        return this.sourcesContent[this._sources.indexOf("/" + aSource)];
      }
    }

    // This function is used recursively from
    // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we
    // don't want to throw if we can't find the source - we just want to
    // return null, so we provide a flag to exit gracefully.
    if (nullOnMissing) {
      return null;
    } else {
      throw new Error('"' + aSource + '" is not in the SourceMap.');
    }
  };

  /**
   * Returns the generated line and column information for the original source,
   * line, and column positions provided. The only argument is an object with
   * the following properties:
   *
   *   - source: The filename of the original source.
   *   - line: The line number in the original source.
   *   - column: The column number in the original source.
   *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
   *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
   *     closest element that is smaller than or greater than the one we are
   *     searching for, respectively, if the exact element cannot be found.
   *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
   *
   * and an object is returned with the following properties:
   *
   *   - line: The line number in the generated source, or null.
   *   - column: The column number in the generated source, or null.
   */
  BasicSourceMapConsumer.prototype.generatedPositionFor = function SourceMapConsumer_generatedPositionFor(aArgs) {
    var source = util.getArg(aArgs, 'source');
    if (this.sourceRoot != null) {
      source = util.relative(this.sourceRoot, source);
    }
    if (!this._sources.has(source)) {
      return {
        line: null,
        column: null,
        lastColumn: null
      };
    }
    source = this._sources.indexOf(source);

    var needle = {
      source: source,
      originalLine: util.getArg(aArgs, 'line'),
      originalColumn: util.getArg(aArgs, 'column')
    };

    var index = this._findMapping(needle, this._originalMappings, "originalLine", "originalColumn", util.compareByOriginalPositions, util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND));

    if (index >= 0) {
      var mapping = this._originalMappings[index];

      if (mapping.source === needle.source) {
        return {
          line: util.getArg(mapping, 'generatedLine', null),
          column: util.getArg(mapping, 'generatedColumn', null),
          lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
        };
      }
    }

    return {
      line: null,
      column: null,
      lastColumn: null
    };
  };

  exports.BasicSourceMapConsumer = BasicSourceMapConsumer;

  /**
   * An IndexedSourceMapConsumer instance represents a parsed source map which
   * we can query for information. It differs from BasicSourceMapConsumer in
   * that it takes "indexed" source maps (i.e. ones with a "sections" field) as
   * input.
   *
   * The only parameter is a raw source map (either as a JSON string, or already
   * parsed to an object). According to the spec for indexed source maps, they
   * have the following attributes:
   *
   *   - version: Which version of the source map spec this map is following.
   *   - file: Optional. The generated file this source map is associated with.
   *   - sections: A list of section definitions.
   *
   * Each value under the "sections" field has two fields:
   *   - offset: The offset into the original specified at which this section
   *       begins to apply, defined as an object with a "line" and "column"
   *       field.
   *   - map: A source map definition. This source map could also be indexed,
   *       but doesn't have to be.
   *
   * Instead of the "map" field, it's also possible to have a "url" field
   * specifying a URL to retrieve a source map from, but that's currently
   * unsupported.
   *
   * Here's an example source map, taken from the source map spec[0], but
   * modified to omit a section which uses the "url" field.
   *
   *  {
   *    version : 3,
   *    file: "app.js",
   *    sections: [{
   *      offset: {line:100, column:10},
   *      map: {
   *        version : 3,
   *        file: "section.js",
   *        sources: ["foo.js", "bar.js"],
   *        names: ["src", "maps", "are", "fun"],
   *        mappings: "AAAA,E;;ABCDE;"
   *      }
   *    }],
   *  }
   *
   * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt
   */
  function IndexedSourceMapConsumer(aSourceMap) {
    var sourceMap = aSourceMap;
    if (typeof aSourceMap === 'string') {
      sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
    }

    var version = util.getArg(sourceMap, 'version');
    var sections = util.getArg(sourceMap, 'sections');

    if (version != this._version) {
      throw new Error('Unsupported version: ' + version);
    }

    this._sources = new ArraySet();
    this._names = new ArraySet();

    var lastOffset = {
      line: -1,
      column: 0
    };
    this._sections = sections.map(function (s) {
      if (s.url) {
        // The url field will require support for asynchronicity.
        // See https://github.com/mozilla/source-map/issues/16
        throw new Error('Support for url field in sections not implemented.');
      }
      var offset = util.getArg(s, 'offset');
      var offsetLine = util.getArg(offset, 'line');
      var offsetColumn = util.getArg(offset, 'column');

      if (offsetLine < lastOffset.line || offsetLine === lastOffset.line && offsetColumn < lastOffset.column) {
        throw new Error('Section offsets must be ordered and non-overlapping.');
      }
      lastOffset = offset;

      return {
        generatedOffset: {
          // The offset fields are 0-based, but we use 1-based indices when
          // encoding/decoding from VLQ.
          generatedLine: offsetLine + 1,
          generatedColumn: offsetColumn + 1
        },
        consumer: new SourceMapConsumer(util.getArg(s, 'map'))
      };
    });
  }

  IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
  IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer;

  /**
   * The version of the source mapping spec that we are consuming.
   */
  IndexedSourceMapConsumer.prototype._version = 3;

  /**
   * The list of original sources.
   */
  Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', {
    get: function () {
      var sources = [];
      for (var i = 0; i < this._sections.length; i++) {
        for (var j = 0; j < this._sections[i].consumer.sources.length; j++) {
          sources.push(this._sections[i].consumer.sources[j]);
        }
      }
      return sources;
    }
  });

  /**
   * Returns the original source, line, and column information for the generated
   * source's line and column positions provided. The only argument is an object
   * with the following properties:
   *
   *   - line: The line number in the generated source.
   *   - column: The column number in the generated source.
   *
   * and an object is returned with the following properties:
   *
   *   - source: The original source file, or null.
   *   - line: The line number in the original source, or null.
   *   - column: The column number in the original source, or null.
   *   - name: The original identifier, or null.
   */
  IndexedSourceMapConsumer.prototype.originalPositionFor = function IndexedSourceMapConsumer_originalPositionFor(aArgs) {
    var needle = {
      generatedLine: util.getArg(aArgs, 'line'),
      generatedColumn: util.getArg(aArgs, 'column')
    };

    // Find the section containing the generated position we're trying to map
    // to an original position.
    var sectionIndex = binarySearch.search(needle, this._sections, function (needle, section) {
      var cmp = needle.generatedLine - section.generatedOffset.generatedLine;
      if (cmp) {
        return cmp;
      }

      return needle.generatedColumn - section.generatedOffset.generatedColumn;
    });
    var section = this._sections[sectionIndex];

    if (!section) {
      return {
        source: null,
        line: null,
        column: null,
        name: null
      };
    }

    return section.consumer.originalPositionFor({
      line: needle.generatedLine - (section.generatedOffset.generatedLine - 1),
      column: needle.generatedColumn - (section.generatedOffset.generatedLine === needle.generatedLine ? section.generatedOffset.generatedColumn - 1 : 0),
      bias: aArgs.bias
    });
  };

  /**
   * Return true if we have the source content for every source in the source
   * map, false otherwise.
   */
  IndexedSourceMapConsumer.prototype.hasContentsOfAllSources = function IndexedSourceMapConsumer_hasContentsOfAllSources() {
    return this._sections.every(function (s) {
      return s.consumer.hasContentsOfAllSources();
    });
  };

  /**
   * Returns the original source content. The only argument is the url of the
   * original source file. Returns null if no original source content is
   * available.
   */
  IndexedSourceMapConsumer.prototype.sourceContentFor = function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];

      var content = section.consumer.sourceContentFor(aSource, true);
      if (content) {
        return content;
      }
    }
    if (nullOnMissing) {
      return null;
    } else {
      throw new Error('"' + aSource + '" is not in the SourceMap.');
    }
  };

  /**
   * Returns the generated line and column information for the original source,
   * line, and column positions provided. The only argument is an object with
   * the following properties:
   *
   *   - source: The filename of the original source.
   *   - line: The line number in the original source.
   *   - column: The column number in the original source.
   *
   * and an object is returned with the following properties:
   *
   *   - line: The line number in the generated source, or null.
   *   - column: The column number in the generated source, or null.
   */
  IndexedSourceMapConsumer.prototype.generatedPositionFor = function IndexedSourceMapConsumer_generatedPositionFor(aArgs) {
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];

      // Only consider this section if the requested source is in the list of
      // sources of the consumer.
      if (section.consumer.sources.indexOf(util.getArg(aArgs, 'source')) === -1) {
        continue;
      }
      var generatedPosition = section.consumer.generatedPositionFor(aArgs);
      if (generatedPosition) {
        var ret = {
          line: generatedPosition.line + (section.generatedOffset.generatedLine - 1),
          column: generatedPosition.column + (section.generatedOffset.generatedLine === generatedPosition.line ? section.generatedOffset.generatedColumn - 1 : 0)
        };
        return ret;
      }
    }

    return {
      line: null,
      column: null
    };
  };

  /**
   * Parse the mappings in a string in to a data structure which we can easily
   * query (the ordered arrays in the `this.__generatedMappings` and
   * `this.__originalMappings` properties).
   */
  IndexedSourceMapConsumer.prototype._parseMappings = function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    this.__generatedMappings = [];
    this.__originalMappings = [];
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];
      var sectionMappings = section.consumer._generatedMappings;
      for (var j = 0; j < sectionMappings.length; j++) {
        var mapping = sectionMappings[j];

        var source = section.consumer._sources.at(mapping.source);
        if (section.consumer.sourceRoot !== null) {
          source = util.join(section.consumer.sourceRoot, source);
        }
        this._sources.add(source);
        source = this._sources.indexOf(source);

        var name = section.consumer._names.at(mapping.name);
        this._names.add(name);
        name = this._names.indexOf(name);

        // The mappings coming from the consumer for the section have
        // generated positions relative to the start of the section, so we
        // need to offset them to be relative to the start of the concatenated
        // generated file.
        var adjustedMapping = {
          source: source,
          generatedLine: mapping.generatedLine + (section.generatedOffset.generatedLine - 1),
          generatedColumn: mapping.generatedColumn + (section.generatedOffset.generatedLine === mapping.generatedLine ? section.generatedOffset.generatedColumn - 1 : 0),
          originalLine: mapping.originalLine,
          originalColumn: mapping.originalColumn,
          name: name
        };

        this.__generatedMappings.push(adjustedMapping);
        if (typeof adjustedMapping.originalLine === 'number') {
          this.__originalMappings.push(adjustedMapping);
        }
      }
    }

    quickSort(this.__generatedMappings, util.compareByGeneratedPositionsDeflated);
    quickSort(this.__originalMappings, util.compareByOriginalPositions);
  };

  exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer;
});
$__System.registerDynamic('2c', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /* -*- Mode: js; js-indent-level: 2; -*- */
  /*
   * Copyright 2011 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE or:
   * http://opensource.org/licenses/BSD-3-Clause
   */

  var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');

  /**
   * Encode an integer in the range of 0 to 63 to a single base 64 digit.
   */
  exports.encode = function (number) {
    if (0 <= number && number < intToCharMap.length) {
      return intToCharMap[number];
    }
    throw new TypeError("Must be between 0 and 63: " + number);
  };

  /**
   * Decode a single base 64 character code digit to an integer. Returns -1 on
   * failure.
   */
  exports.decode = function (charCode) {
    var bigA = 65; // 'A'
    var bigZ = 90; // 'Z'

    var littleA = 97; // 'a'
    var littleZ = 122; // 'z'

    var zero = 48; // '0'
    var nine = 57; // '9'

    var plus = 43; // '+'
    var slash = 47; // '/'

    var littleOffset = 26;
    var numberOffset = 52;

    // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
    if (bigA <= charCode && charCode <= bigZ) {
      return charCode - bigA;
    }

    // 26 - 51: abcdefghijklmnopqrstuvwxyz
    if (littleA <= charCode && charCode <= littleZ) {
      return charCode - littleA + littleOffset;
    }

    // 52 - 61: 0123456789
    if (zero <= charCode && charCode <= nine) {
      return charCode - zero + numberOffset;
    }

    // 62: +
    if (charCode == plus) {
      return 62;
    }

    // 63: /
    if (charCode == slash) {
      return 63;
    }

    // Invalid base64 digit.
    return -1;
  };
});
$__System.registerDynamic("2b", ["2c"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /* -*- Mode: js; js-indent-level: 2; -*- */
  /*
   * Copyright 2011 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE or:
   * http://opensource.org/licenses/BSD-3-Clause
   *
   * Based on the Base 64 VLQ implementation in Closure Compiler:
   * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
   *
   * Copyright 2011 The Closure Compiler Authors. All rights reserved.
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   *  * Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *  * Redistributions in binary form must reproduce the above
   *    copyright notice, this list of conditions and the following
   *    disclaimer in the documentation and/or other materials provided
   *    with the distribution.
   *  * Neither the name of Google Inc. nor the names of its
   *    contributors may be used to endorse or promote products derived
   *    from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */

  var base64 = $__require("2c");

  // A single base 64 digit can contain 6 bits of data. For the base 64 variable
  // length quantities we use in the source map spec, the first bit is the sign,
  // the next four bits are the actual value, and the 6th bit is the
  // continuation bit. The continuation bit tells us whether there are more
  // digits in this value following this digit.
  //
  //   Continuation
  //   |    Sign
  //   |    |
  //   V    V
  //   101011

  var VLQ_BASE_SHIFT = 5;

  // binary: 100000
  var VLQ_BASE = 1 << VLQ_BASE_SHIFT;

  // binary: 011111
  var VLQ_BASE_MASK = VLQ_BASE - 1;

  // binary: 100000
  var VLQ_CONTINUATION_BIT = VLQ_BASE;

  /**
   * Converts from a two-complement value to a value where the sign bit is
   * placed in the least significant bit.  For example, as decimals:
   *   1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
   *   2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
   */
  function toVLQSigned(aValue) {
    return aValue < 0 ? (-aValue << 1) + 1 : (aValue << 1) + 0;
  }

  /**
   * Converts to a two-complement value from a value where the sign bit is
   * placed in the least significant bit.  For example, as decimals:
   *   2 (10 binary) becomes 1, 3 (11 binary) becomes -1
   *   4 (100 binary) becomes 2, 5 (101 binary) becomes -2
   */
  function fromVLQSigned(aValue) {
    var isNegative = (aValue & 1) === 1;
    var shifted = aValue >> 1;
    return isNegative ? -shifted : shifted;
  }

  /**
   * Returns the base 64 VLQ encoded value.
   */
  exports.encode = function base64VLQ_encode(aValue) {
    var encoded = "";
    var digit;

    var vlq = toVLQSigned(aValue);

    do {
      digit = vlq & VLQ_BASE_MASK;
      vlq >>>= VLQ_BASE_SHIFT;
      if (vlq > 0) {
        // There are still more digits in this value, so we must make sure the
        // continuation bit is marked.
        digit |= VLQ_CONTINUATION_BIT;
      }
      encoded += base64.encode(digit);
    } while (vlq > 0);

    return encoded;
  };

  /**
   * Decodes the next base 64 VLQ value from the given string and returns the
   * value and the rest of the string via the out parameter.
   */
  exports.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {
    var strLen = aStr.length;
    var result = 0;
    var shift = 0;
    var continuation, digit;

    do {
      if (aIndex >= strLen) {
        throw new Error("Expected more digits in base 64 VLQ value.");
      }

      digit = base64.decode(aStr.charCodeAt(aIndex++));
      if (digit === -1) {
        throw new Error("Invalid base64 digit: " + aStr.charAt(aIndex - 1));
      }

      continuation = !!(digit & VLQ_CONTINUATION_BIT);
      digit &= VLQ_BASE_MASK;
      result = result + (digit << shift);
      shift += VLQ_BASE_SHIFT;
    } while (continuation);

    aOutParam.value = fromVLQSigned(result);
    aOutParam.rest = aIndex;
  };
});
$__System.registerDynamic('2a', ['29'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /* -*- Mode: js; js-indent-level: 2; -*- */
  /*
   * Copyright 2011 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE or:
   * http://opensource.org/licenses/BSD-3-Clause
   */

  var util = $__require('29');
  var has = Object.prototype.hasOwnProperty;

  /**
   * A data structure which is a combination of an array and a set. Adding a new
   * member is O(1), testing for membership is O(1), and finding the index of an
   * element is O(1). Removing elements from the set is not supported. Only
   * strings are supported for membership.
   */
  function ArraySet() {
    this._array = [];
    this._set = Object.create(null);
  }

  /**
   * Static method for creating ArraySet instances from an existing array.
   */
  ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
    var set = new ArraySet();
    for (var i = 0, len = aArray.length; i < len; i++) {
      set.add(aArray[i], aAllowDuplicates);
    }
    return set;
  };

  /**
   * Return how many unique items are in this ArraySet. If duplicates have been
   * added, than those do not count towards the size.
   *
   * @returns Number
   */
  ArraySet.prototype.size = function ArraySet_size() {
    return Object.getOwnPropertyNames(this._set).length;
  };

  /**
   * Add the given string to this set.
   *
   * @param String aStr
   */
  ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
    var sStr = util.toSetString(aStr);
    var isDuplicate = has.call(this._set, sStr);
    var idx = this._array.length;
    if (!isDuplicate || aAllowDuplicates) {
      this._array.push(aStr);
    }
    if (!isDuplicate) {
      this._set[sStr] = idx;
    }
  };

  /**
   * Is the given string a member of this set?
   *
   * @param String aStr
   */
  ArraySet.prototype.has = function ArraySet_has(aStr) {
    var sStr = util.toSetString(aStr);
    return has.call(this._set, sStr);
  };

  /**
   * What is the index of the given string in the array?
   *
   * @param String aStr
   */
  ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
    var sStr = util.toSetString(aStr);
    if (has.call(this._set, sStr)) {
      return this._set[sStr];
    }
    throw new Error('"' + aStr + '" is not in the set.');
  };

  /**
   * What is the element at the given index?
   *
   * @param Number aIdx
   */
  ArraySet.prototype.at = function ArraySet_at(aIdx) {
    if (aIdx >= 0 && aIdx < this._array.length) {
      return this._array[aIdx];
    }
    throw new Error('No element indexed by ' + aIdx);
  };

  /**
   * Returns the array representation of this set (which has the proper indices
   * indicated by indexOf). Note that this is a copy of the internal array used
   * for storing the members so that no one can mess with internal state.
   */
  ArraySet.prototype.toArray = function ArraySet_toArray() {
    return this._array.slice();
  };

  exports.ArraySet = ArraySet;
});
$__System.registerDynamic('2d', ['29'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /* -*- Mode: js; js-indent-level: 2; -*- */
  /*
   * Copyright 2014 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE or:
   * http://opensource.org/licenses/BSD-3-Clause
   */

  var util = $__require('29');

  /**
   * Determine whether mappingB is after mappingA with respect to generated
   * position.
   */
  function generatedPositionAfter(mappingA, mappingB) {
    // Optimized for most common case
    var lineA = mappingA.generatedLine;
    var lineB = mappingB.generatedLine;
    var columnA = mappingA.generatedColumn;
    var columnB = mappingB.generatedColumn;
    return lineB > lineA || lineB == lineA && columnB >= columnA || util.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0;
  }

  /**
   * A data structure to provide a sorted view of accumulated mappings in a
   * performance conscious manner. It trades a neglibable overhead in general
   * case for a large speedup in case of mappings being added in order.
   */
  function MappingList() {
    this._array = [];
    this._sorted = true;
    // Serves as infimum
    this._last = { generatedLine: -1, generatedColumn: 0 };
  }

  /**
   * Iterate through internal items. This method takes the same arguments that
   * `Array.prototype.forEach` takes.
   *
   * NOTE: The order of the mappings is NOT guaranteed.
   */
  MappingList.prototype.unsortedForEach = function MappingList_forEach(aCallback, aThisArg) {
    this._array.forEach(aCallback, aThisArg);
  };

  /**
   * Add the given source mapping.
   *
   * @param Object aMapping
   */
  MappingList.prototype.add = function MappingList_add(aMapping) {
    if (generatedPositionAfter(this._last, aMapping)) {
      this._last = aMapping;
      this._array.push(aMapping);
    } else {
      this._sorted = false;
      this._array.push(aMapping);
    }
  };

  /**
   * Returns the flat, sorted array of mappings. The mappings are sorted by
   * generated position.
   *
   * WARNING: This method returns internal data without copying, for
   * performance. The return value must NOT be mutated, and should be treated as
   * an immutable borrow. If you want to take ownership, you must make your own
   * copy.
   */
  MappingList.prototype.toArray = function MappingList_toArray() {
    if (!this._sorted) {
      this._array.sort(util.compareByGeneratedPositionsInflated);
      this._sorted = true;
    }
    return this._array;
  };

  exports.MappingList = MappingList;
});
$__System.registerDynamic('2e', ['2b', '29', '2a', '2d'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /* -*- Mode: js; js-indent-level: 2; -*- */
  /*
   * Copyright 2011 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE or:
   * http://opensource.org/licenses/BSD-3-Clause
   */

  var base64VLQ = $__require('2b');
  var util = $__require('29');
  var ArraySet = $__require('2a').ArraySet;
  var MappingList = $__require('2d').MappingList;

  /**
   * An instance of the SourceMapGenerator represents a source map which is
   * being built incrementally. You may pass an object with the following
   * properties:
   *
   *   - file: The filename of the generated source.
   *   - sourceRoot: A root for all relative URLs in this source map.
   */
  function SourceMapGenerator(aArgs) {
    if (!aArgs) {
      aArgs = {};
    }
    this._file = util.getArg(aArgs, 'file', null);
    this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
    this._skipValidation = util.getArg(aArgs, 'skipValidation', false);
    this._sources = new ArraySet();
    this._names = new ArraySet();
    this._mappings = new MappingList();
    this._sourcesContents = null;
  }

  SourceMapGenerator.prototype._version = 3;

  /**
   * Creates a new SourceMapGenerator based on a SourceMapConsumer
   *
   * @param aSourceMapConsumer The SourceMap.
   */
  SourceMapGenerator.fromSourceMap = function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
    var sourceRoot = aSourceMapConsumer.sourceRoot;
    var generator = new SourceMapGenerator({
      file: aSourceMapConsumer.file,
      sourceRoot: sourceRoot
    });
    aSourceMapConsumer.eachMapping(function (mapping) {
      var newMapping = {
        generated: {
          line: mapping.generatedLine,
          column: mapping.generatedColumn
        }
      };

      if (mapping.source != null) {
        newMapping.source = mapping.source;
        if (sourceRoot != null) {
          newMapping.source = util.relative(sourceRoot, newMapping.source);
        }

        newMapping.original = {
          line: mapping.originalLine,
          column: mapping.originalColumn
        };

        if (mapping.name != null) {
          newMapping.name = mapping.name;
        }
      }

      generator.addMapping(newMapping);
    });
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        generator.setSourceContent(sourceFile, content);
      }
    });
    return generator;
  };

  /**
   * Add a single mapping from original source line and column to the generated
   * source's line and column for this source map being created. The mapping
   * object should have the following properties:
   *
   *   - generated: An object with the generated line and column positions.
   *   - original: An object with the original line and column positions.
   *   - source: The original source file (relative to the sourceRoot).
   *   - name: An optional original token name for this mapping.
   */
  SourceMapGenerator.prototype.addMapping = function SourceMapGenerator_addMapping(aArgs) {
    var generated = util.getArg(aArgs, 'generated');
    var original = util.getArg(aArgs, 'original', null);
    var source = util.getArg(aArgs, 'source', null);
    var name = util.getArg(aArgs, 'name', null);

    if (!this._skipValidation) {
      this._validateMapping(generated, original, source, name);
    }

    if (source != null) {
      source = String(source);
      if (!this._sources.has(source)) {
        this._sources.add(source);
      }
    }

    if (name != null) {
      name = String(name);
      if (!this._names.has(name)) {
        this._names.add(name);
      }
    }

    this._mappings.add({
      generatedLine: generated.line,
      generatedColumn: generated.column,
      originalLine: original != null && original.line,
      originalColumn: original != null && original.column,
      source: source,
      name: name
    });
  };

  /**
   * Set the source content for a source file.
   */
  SourceMapGenerator.prototype.setSourceContent = function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
    var source = aSourceFile;
    if (this._sourceRoot != null) {
      source = util.relative(this._sourceRoot, source);
    }

    if (aSourceContent != null) {
      // Add the source content to the _sourcesContents map.
      // Create a new _sourcesContents map if the property is null.
      if (!this._sourcesContents) {
        this._sourcesContents = Object.create(null);
      }
      this._sourcesContents[util.toSetString(source)] = aSourceContent;
    } else if (this._sourcesContents) {
      // Remove the source file from the _sourcesContents map.
      // If the _sourcesContents map is empty, set the property to null.
      delete this._sourcesContents[util.toSetString(source)];
      if (Object.keys(this._sourcesContents).length === 0) {
        this._sourcesContents = null;
      }
    }
  };

  /**
   * Applies the mappings of a sub-source-map for a specific source file to the
   * source map being generated. Each mapping to the supplied source file is
   * rewritten using the supplied source map. Note: The resolution for the
   * resulting mappings is the minimium of this map and the supplied map.
   *
   * @param aSourceMapConsumer The source map to be applied.
   * @param aSourceFile Optional. The filename of the source file.
   *        If omitted, SourceMapConsumer's file property will be used.
   * @param aSourceMapPath Optional. The dirname of the path to the source map
   *        to be applied. If relative, it is relative to the SourceMapConsumer.
   *        This parameter is needed when the two source maps aren't in the same
   *        directory, and the source map to be applied contains relative source
   *        paths. If so, those relative source paths need to be rewritten
   *        relative to the SourceMapGenerator.
   */
  SourceMapGenerator.prototype.applySourceMap = function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) {
    var sourceFile = aSourceFile;
    // If aSourceFile is omitted, we will use the file property of the SourceMap
    if (aSourceFile == null) {
      if (aSourceMapConsumer.file == null) {
        throw new Error('SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' + 'or the source map\'s "file" property. Both were omitted.');
      }
      sourceFile = aSourceMapConsumer.file;
    }
    var sourceRoot = this._sourceRoot;
    // Make "sourceFile" relative if an absolute Url is passed.
    if (sourceRoot != null) {
      sourceFile = util.relative(sourceRoot, sourceFile);
    }
    // Applying the SourceMap can add and remove items from the sources and
    // the names array.
    var newSources = new ArraySet();
    var newNames = new ArraySet();

    // Find mappings for the "sourceFile"
    this._mappings.unsortedForEach(function (mapping) {
      if (mapping.source === sourceFile && mapping.originalLine != null) {
        // Check if it can be mapped by the source map, then update the mapping.
        var original = aSourceMapConsumer.originalPositionFor({
          line: mapping.originalLine,
          column: mapping.originalColumn
        });
        if (original.source != null) {
          // Copy mapping
          mapping.source = original.source;
          if (aSourceMapPath != null) {
            mapping.source = util.join(aSourceMapPath, mapping.source);
          }
          if (sourceRoot != null) {
            mapping.source = util.relative(sourceRoot, mapping.source);
          }
          mapping.originalLine = original.line;
          mapping.originalColumn = original.column;
          if (original.name != null) {
            mapping.name = original.name;
          }
        }
      }

      var source = mapping.source;
      if (source != null && !newSources.has(source)) {
        newSources.add(source);
      }

      var name = mapping.name;
      if (name != null && !newNames.has(name)) {
        newNames.add(name);
      }
    }, this);
    this._sources = newSources;
    this._names = newNames;

    // Copy sourcesContents of applied map.
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        if (aSourceMapPath != null) {
          sourceFile = util.join(aSourceMapPath, sourceFile);
        }
        if (sourceRoot != null) {
          sourceFile = util.relative(sourceRoot, sourceFile);
        }
        this.setSourceContent(sourceFile, content);
      }
    }, this);
  };

  /**
   * A mapping can have one of the three levels of data:
   *
   *   1. Just the generated position.
   *   2. The Generated position, original position, and original source.
   *   3. Generated and original position, original source, as well as a name
   *      token.
   *
   * To maintain consistency, we validate that any new mapping being added falls
   * in to one of these categories.
   */
  SourceMapGenerator.prototype._validateMapping = function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, aName) {
    if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aGenerated.line > 0 && aGenerated.column >= 0 && !aOriginal && !aSource && !aName) {
      // Case 1.
      return;
    } else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aOriginal && 'line' in aOriginal && 'column' in aOriginal && aGenerated.line > 0 && aGenerated.column >= 0 && aOriginal.line > 0 && aOriginal.column >= 0 && aSource) {
      // Cases 2 and 3.
      return;
    } else {
      throw new Error('Invalid mapping: ' + JSON.stringify({
        generated: aGenerated,
        source: aSource,
        original: aOriginal,
        name: aName
      }));
    }
  };

  /**
   * Serialize the accumulated mappings in to the stream of base 64 VLQs
   * specified by the source map format.
   */
  SourceMapGenerator.prototype._serializeMappings = function SourceMapGenerator_serializeMappings() {
    var previousGeneratedColumn = 0;
    var previousGeneratedLine = 1;
    var previousOriginalColumn = 0;
    var previousOriginalLine = 0;
    var previousName = 0;
    var previousSource = 0;
    var result = '';
    var next;
    var mapping;
    var nameIdx;
    var sourceIdx;

    var mappings = this._mappings.toArray();
    for (var i = 0, len = mappings.length; i < len; i++) {
      mapping = mappings[i];
      next = '';

      if (mapping.generatedLine !== previousGeneratedLine) {
        previousGeneratedColumn = 0;
        while (mapping.generatedLine !== previousGeneratedLine) {
          next += ';';
          previousGeneratedLine++;
        }
      } else {
        if (i > 0) {
          if (!util.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])) {
            continue;
          }
          next += ',';
        }
      }

      next += base64VLQ.encode(mapping.generatedColumn - previousGeneratedColumn);
      previousGeneratedColumn = mapping.generatedColumn;

      if (mapping.source != null) {
        sourceIdx = this._sources.indexOf(mapping.source);
        next += base64VLQ.encode(sourceIdx - previousSource);
        previousSource = sourceIdx;

        // lines are stored 0-based in SourceMap spec version 3
        next += base64VLQ.encode(mapping.originalLine - 1 - previousOriginalLine);
        previousOriginalLine = mapping.originalLine - 1;

        next += base64VLQ.encode(mapping.originalColumn - previousOriginalColumn);
        previousOriginalColumn = mapping.originalColumn;

        if (mapping.name != null) {
          nameIdx = this._names.indexOf(mapping.name);
          next += base64VLQ.encode(nameIdx - previousName);
          previousName = nameIdx;
        }
      }

      result += next;
    }

    return result;
  };

  SourceMapGenerator.prototype._generateSourcesContent = function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
    return aSources.map(function (source) {
      if (!this._sourcesContents) {
        return null;
      }
      if (aSourceRoot != null) {
        source = util.relative(aSourceRoot, source);
      }
      var key = util.toSetString(source);
      return Object.prototype.hasOwnProperty.call(this._sourcesContents, key) ? this._sourcesContents[key] : null;
    }, this);
  };

  /**
   * Externalize the source map.
   */
  SourceMapGenerator.prototype.toJSON = function SourceMapGenerator_toJSON() {
    var map = {
      version: this._version,
      sources: this._sources.toArray(),
      names: this._names.toArray(),
      mappings: this._serializeMappings()
    };
    if (this._file != null) {
      map.file = this._file;
    }
    if (this._sourceRoot != null) {
      map.sourceRoot = this._sourceRoot;
    }
    if (this._sourcesContents) {
      map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
    }

    return map;
  };

  /**
   * Render the source map being generated to a string.
   */
  SourceMapGenerator.prototype.toString = function SourceMapGenerator_toString() {
    return JSON.stringify(this.toJSON());
  };

  exports.SourceMapGenerator = SourceMapGenerator;
});
$__System.registerDynamic('29', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /* -*- Mode: js; js-indent-level: 2; -*- */
  /*
   * Copyright 2011 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE or:
   * http://opensource.org/licenses/BSD-3-Clause
   */

  /**
   * This is a helper function for getting values from parameter/options
   * objects.
   *
   * @param args The object we are extracting values from
   * @param name The name of the property we are getting.
   * @param defaultValue An optional value to return if the property is missing
   * from the object. If this is not specified and the property is missing, an
   * error will be thrown.
   */
  function getArg(aArgs, aName, aDefaultValue) {
    if (aName in aArgs) {
      return aArgs[aName];
    } else if (arguments.length === 3) {
      return aDefaultValue;
    } else {
      throw new Error('"' + aName + '" is a required argument.');
    }
  }
  exports.getArg = getArg;

  var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.]*)(?::(\d+))?(\S*)$/;
  var dataUrlRegexp = /^data:.+\,.+$/;

  function urlParse(aUrl) {
    var match = aUrl.match(urlRegexp);
    if (!match) {
      return null;
    }
    return {
      scheme: match[1],
      auth: match[2],
      host: match[3],
      port: match[4],
      path: match[5]
    };
  }
  exports.urlParse = urlParse;

  function urlGenerate(aParsedUrl) {
    var url = '';
    if (aParsedUrl.scheme) {
      url += aParsedUrl.scheme + ':';
    }
    url += '//';
    if (aParsedUrl.auth) {
      url += aParsedUrl.auth + '@';
    }
    if (aParsedUrl.host) {
      url += aParsedUrl.host;
    }
    if (aParsedUrl.port) {
      url += ":" + aParsedUrl.port;
    }
    if (aParsedUrl.path) {
      url += aParsedUrl.path;
    }
    return url;
  }
  exports.urlGenerate = urlGenerate;

  /**
   * Normalizes a path, or the path portion of a URL:
   *
   * - Replaces consecutive slashes with one slash.
   * - Removes unnecessary '.' parts.
   * - Removes unnecessary '<dir>/..' parts.
   *
   * Based on code in the Node.js 'path' core module.
   *
   * @param aPath The path or url to normalize.
   */
  function normalize(aPath) {
    var path = aPath;
    var url = urlParse(aPath);
    if (url) {
      if (!url.path) {
        return aPath;
      }
      path = url.path;
    }
    var isAbsolute = exports.isAbsolute(path);

    var parts = path.split(/\/+/);
    for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
      part = parts[i];
      if (part === '.') {
        parts.splice(i, 1);
      } else if (part === '..') {
        up++;
      } else if (up > 0) {
        if (part === '') {
          // The first part is blank if the path is absolute. Trying to go
          // above the root is a no-op. Therefore we can remove all '..' parts
          // directly after the root.
          parts.splice(i + 1, up);
          up = 0;
        } else {
          parts.splice(i, 2);
          up--;
        }
      }
    }
    path = parts.join('/');

    if (path === '') {
      path = isAbsolute ? '/' : '.';
    }

    if (url) {
      url.path = path;
      return urlGenerate(url);
    }
    return path;
  }
  exports.normalize = normalize;

  /**
   * Joins two paths/URLs.
   *
   * @param aRoot The root path or URL.
   * @param aPath The path or URL to be joined with the root.
   *
   * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
   *   scheme-relative URL: Then the scheme of aRoot, if any, is prepended
   *   first.
   * - Otherwise aPath is a path. If aRoot is a URL, then its path portion
   *   is updated with the result and aRoot is returned. Otherwise the result
   *   is returned.
   *   - If aPath is absolute, the result is aPath.
   *   - Otherwise the two paths are joined with a slash.
   * - Joining for example 'http://' and 'www.example.com' is also supported.
   */
  function join(aRoot, aPath) {
    if (aRoot === "") {
      aRoot = ".";
    }
    if (aPath === "") {
      aPath = ".";
    }
    var aPathUrl = urlParse(aPath);
    var aRootUrl = urlParse(aRoot);
    if (aRootUrl) {
      aRoot = aRootUrl.path || '/';
    }

    // `join(foo, '//www.example.org')`
    if (aPathUrl && !aPathUrl.scheme) {
      if (aRootUrl) {
        aPathUrl.scheme = aRootUrl.scheme;
      }
      return urlGenerate(aPathUrl);
    }

    if (aPathUrl || aPath.match(dataUrlRegexp)) {
      return aPath;
    }

    // `join('http://', 'www.example.com')`
    if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
      aRootUrl.host = aPath;
      return urlGenerate(aRootUrl);
    }

    var joined = aPath.charAt(0) === '/' ? aPath : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);

    if (aRootUrl) {
      aRootUrl.path = joined;
      return urlGenerate(aRootUrl);
    }
    return joined;
  }
  exports.join = join;

  exports.isAbsolute = function (aPath) {
    return aPath.charAt(0) === '/' || !!aPath.match(urlRegexp);
  };

  /**
   * Make a path relative to a URL or another path.
   *
   * @param aRoot The root path or URL.
   * @param aPath The path or URL to be made relative to aRoot.
   */
  function relative(aRoot, aPath) {
    if (aRoot === "") {
      aRoot = ".";
    }

    aRoot = aRoot.replace(/\/$/, '');

    // It is possible for the path to be above the root. In this case, simply
    // checking whether the root is a prefix of the path won't work. Instead, we
    // need to remove components from the root one by one, until either we find
    // a prefix that fits, or we run out of components to remove.
    var level = 0;
    while (aPath.indexOf(aRoot + '/') !== 0) {
      var index = aRoot.lastIndexOf("/");
      if (index < 0) {
        return aPath;
      }

      // If the only part of the root that is left is the scheme (i.e. http://,
      // file:///, etc.), one or more slashes (/), or simply nothing at all, we
      // have exhausted all components, so the path is not relative to the root.
      aRoot = aRoot.slice(0, index);
      if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
        return aPath;
      }

      ++level;
    }

    // Make sure we add a "../" for each component we removed from the root.
    return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1);
  }
  exports.relative = relative;

  var supportsNullProto = function () {
    var obj = Object.create(null);
    return !('__proto__' in obj);
  }();

  function identity(s) {
    return s;
  }

  /**
   * Because behavior goes wacky when you set `__proto__` on objects, we
   * have to prefix all the strings in our set with an arbitrary character.
   *
   * See https://github.com/mozilla/source-map/pull/31 and
   * https://github.com/mozilla/source-map/issues/30
   *
   * @param String aStr
   */
  function toSetString(aStr) {
    if (isProtoString(aStr)) {
      return '$' + aStr;
    }

    return aStr;
  }
  exports.toSetString = supportsNullProto ? identity : toSetString;

  function fromSetString(aStr) {
    if (isProtoString(aStr)) {
      return aStr.slice(1);
    }

    return aStr;
  }
  exports.fromSetString = supportsNullProto ? identity : fromSetString;

  function isProtoString(s) {
    if (!s) {
      return false;
    }

    var length = s.length;

    if (length < 9 /* "__proto__".length */) {
        return false;
      }

    if (s.charCodeAt(length - 1) !== 95 /* '_' */ || s.charCodeAt(length - 2) !== 95 /* '_' */ || s.charCodeAt(length - 3) !== 111 /* 'o' */ || s.charCodeAt(length - 4) !== 116 /* 't' */ || s.charCodeAt(length - 5) !== 111 /* 'o' */ || s.charCodeAt(length - 6) !== 114 /* 'r' */ || s.charCodeAt(length - 7) !== 112 /* 'p' */ || s.charCodeAt(length - 8) !== 95 /* '_' */ || s.charCodeAt(length - 9) !== 95 /* '_' */) {
        return false;
      }

    for (var i = length - 10; i >= 0; i--) {
      if (s.charCodeAt(i) !== 36 /* '$' */) {
          return false;
        }
    }

    return true;
  }

  /**
   * Comparator between two mappings where the original positions are compared.
   *
   * Optionally pass in `true` as `onlyCompareGenerated` to consider two
   * mappings with the same original source/line/column, but different generated
   * line and column the same. Useful when searching for a mapping with a
   * stubbed out mapping.
   */
  function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
    var cmp = mappingA.source - mappingB.source;
    if (cmp !== 0) {
      return cmp;
    }

    cmp = mappingA.originalLine - mappingB.originalLine;
    if (cmp !== 0) {
      return cmp;
    }

    cmp = mappingA.originalColumn - mappingB.originalColumn;
    if (cmp !== 0 || onlyCompareOriginal) {
      return cmp;
    }

    cmp = mappingA.generatedColumn - mappingB.generatedColumn;
    if (cmp !== 0) {
      return cmp;
    }

    cmp = mappingA.generatedLine - mappingB.generatedLine;
    if (cmp !== 0) {
      return cmp;
    }

    return mappingA.name - mappingB.name;
  }
  exports.compareByOriginalPositions = compareByOriginalPositions;

  /**
   * Comparator between two mappings with deflated source and name indices where
   * the generated positions are compared.
   *
   * Optionally pass in `true` as `onlyCompareGenerated` to consider two
   * mappings with the same generated line and column, but different
   * source/name/original line and column the same. Useful when searching for a
   * mapping with a stubbed out mapping.
   */
  function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) {
    var cmp = mappingA.generatedLine - mappingB.generatedLine;
    if (cmp !== 0) {
      return cmp;
    }

    cmp = mappingA.generatedColumn - mappingB.generatedColumn;
    if (cmp !== 0 || onlyCompareGenerated) {
      return cmp;
    }

    cmp = mappingA.source - mappingB.source;
    if (cmp !== 0) {
      return cmp;
    }

    cmp = mappingA.originalLine - mappingB.originalLine;
    if (cmp !== 0) {
      return cmp;
    }

    cmp = mappingA.originalColumn - mappingB.originalColumn;
    if (cmp !== 0) {
      return cmp;
    }

    return mappingA.name - mappingB.name;
  }
  exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated;

  function strcmp(aStr1, aStr2) {
    if (aStr1 === aStr2) {
      return 0;
    }

    if (aStr1 > aStr2) {
      return 1;
    }

    return -1;
  }

  /**
   * Comparator between two mappings with inflated source and name strings where
   * the generated positions are compared.
   */
  function compareByGeneratedPositionsInflated(mappingA, mappingB) {
    var cmp = mappingA.generatedLine - mappingB.generatedLine;
    if (cmp !== 0) {
      return cmp;
    }

    cmp = mappingA.generatedColumn - mappingB.generatedColumn;
    if (cmp !== 0) {
      return cmp;
    }

    cmp = strcmp(mappingA.source, mappingB.source);
    if (cmp !== 0) {
      return cmp;
    }

    cmp = mappingA.originalLine - mappingB.originalLine;
    if (cmp !== 0) {
      return cmp;
    }

    cmp = mappingA.originalColumn - mappingB.originalColumn;
    if (cmp !== 0) {
      return cmp;
    }

    return strcmp(mappingA.name, mappingB.name);
  }
  exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated;
});
$__System.registerDynamic('2f', ['2e', '29'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /* -*- Mode: js; js-indent-level: 2; -*- */
  /*
   * Copyright 2011 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE or:
   * http://opensource.org/licenses/BSD-3-Clause
   */

  var SourceMapGenerator = $__require('2e').SourceMapGenerator;
  var util = $__require('29');

  // Matches a Windows-style `\r\n` newline or a `\n` newline used by all other
  // operating systems these days (capturing the result).
  var REGEX_NEWLINE = /(\r?\n)/;

  // Newline character code for charCodeAt() comparisons
  var NEWLINE_CODE = 10;

  // Private symbol for identifying `SourceNode`s when multiple versions of
  // the source-map library are loaded. This MUST NOT CHANGE across
  // versions!
  var isSourceNode = "$$$isSourceNode$$$";

  /**
   * SourceNodes provide a way to abstract over interpolating/concatenating
   * snippets of generated JavaScript source code while maintaining the line and
   * column information associated with the original source code.
   *
   * @param aLine The original line number.
   * @param aColumn The original column number.
   * @param aSource The original source's filename.
   * @param aChunks Optional. An array of strings which are snippets of
   *        generated JS, or other SourceNodes.
   * @param aName The original identifier.
   */
  function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
    this.children = [];
    this.sourceContents = {};
    this.line = aLine == null ? null : aLine;
    this.column = aColumn == null ? null : aColumn;
    this.source = aSource == null ? null : aSource;
    this.name = aName == null ? null : aName;
    this[isSourceNode] = true;
    if (aChunks != null) this.add(aChunks);
  }

  /**
   * Creates a SourceNode from generated code and a SourceMapConsumer.
   *
   * @param aGeneratedCode The generated code
   * @param aSourceMapConsumer The SourceMap for the generated code
   * @param aRelativePath Optional. The path that relative sources in the
   *        SourceMapConsumer should be relative to.
   */
  SourceNode.fromStringWithSourceMap = function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) {
    // The SourceNode we want to fill with the generated code
    // and the SourceMap
    var node = new SourceNode();

    // All even indices of this array are one line of the generated code,
    // while all odd indices are the newlines between two adjacent lines
    // (since `REGEX_NEWLINE` captures its match).
    // Processed fragments are removed from this array, by calling `shiftNextLine`.
    var remainingLines = aGeneratedCode.split(REGEX_NEWLINE);
    var shiftNextLine = function () {
      var lineContents = remainingLines.shift();
      // The last line of a file might not have a newline.
      var newLine = remainingLines.shift() || "";
      return lineContents + newLine;
    };

    // We need to remember the position of "remainingLines"
    var lastGeneratedLine = 1,
        lastGeneratedColumn = 0;

    // The generate SourceNodes we need a code range.
    // To extract it current and last mapping is used.
    // Here we store the last mapping.
    var lastMapping = null;

    aSourceMapConsumer.eachMapping(function (mapping) {
      if (lastMapping !== null) {
        // We add the code from "lastMapping" to "mapping":
        // First check if there is a new line in between.
        if (lastGeneratedLine < mapping.generatedLine) {
          // Associate first line with "lastMapping"
          addMappingWithCode(lastMapping, shiftNextLine());
          lastGeneratedLine++;
          lastGeneratedColumn = 0;
          // The remaining code is added without mapping
        } else {
          // There is no new line in between.
          // Associate the code between "lastGeneratedColumn" and
          // "mapping.generatedColumn" with "lastMapping"
          var nextLine = remainingLines[0];
          var code = nextLine.substr(0, mapping.generatedColumn - lastGeneratedColumn);
          remainingLines[0] = nextLine.substr(mapping.generatedColumn - lastGeneratedColumn);
          lastGeneratedColumn = mapping.generatedColumn;
          addMappingWithCode(lastMapping, code);
          // No more remaining code, continue
          lastMapping = mapping;
          return;
        }
      }
      // We add the generated code until the first mapping
      // to the SourceNode without any mapping.
      // Each line is added as separate string.
      while (lastGeneratedLine < mapping.generatedLine) {
        node.add(shiftNextLine());
        lastGeneratedLine++;
      }
      if (lastGeneratedColumn < mapping.generatedColumn) {
        var nextLine = remainingLines[0];
        node.add(nextLine.substr(0, mapping.generatedColumn));
        remainingLines[0] = nextLine.substr(mapping.generatedColumn);
        lastGeneratedColumn = mapping.generatedColumn;
      }
      lastMapping = mapping;
    }, this);
    // We have processed all mappings.
    if (remainingLines.length > 0) {
      if (lastMapping) {
        // Associate the remaining code in the current line with "lastMapping"
        addMappingWithCode(lastMapping, shiftNextLine());
      }
      // and add the remaining lines without any mapping
      node.add(remainingLines.join(""));
    }

    // Copy sourcesContent into SourceNode
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        if (aRelativePath != null) {
          sourceFile = util.join(aRelativePath, sourceFile);
        }
        node.setSourceContent(sourceFile, content);
      }
    });

    return node;

    function addMappingWithCode(mapping, code) {
      if (mapping === null || mapping.source === undefined) {
        node.add(code);
      } else {
        var source = aRelativePath ? util.join(aRelativePath, mapping.source) : mapping.source;
        node.add(new SourceNode(mapping.originalLine, mapping.originalColumn, source, code, mapping.name));
      }
    }
  };

  /**
   * Add a chunk of generated JS to this source node.
   *
   * @param aChunk A string snippet of generated JS code, another instance of
   *        SourceNode, or an array where each member is one of those things.
   */
  SourceNode.prototype.add = function SourceNode_add(aChunk) {
    if (Array.isArray(aChunk)) {
      aChunk.forEach(function (chunk) {
        this.add(chunk);
      }, this);
    } else if (aChunk[isSourceNode] || typeof aChunk === "string") {
      if (aChunk) {
        this.children.push(aChunk);
      }
    } else {
      throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk);
    }
    return this;
  };

  /**
   * Add a chunk of generated JS to the beginning of this source node.
   *
   * @param aChunk A string snippet of generated JS code, another instance of
   *        SourceNode, or an array where each member is one of those things.
   */
  SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
    if (Array.isArray(aChunk)) {
      for (var i = aChunk.length - 1; i >= 0; i--) {
        this.prepend(aChunk[i]);
      }
    } else if (aChunk[isSourceNode] || typeof aChunk === "string") {
      this.children.unshift(aChunk);
    } else {
      throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk);
    }
    return this;
  };

  /**
   * Walk over the tree of JS snippets in this node and its children. The
   * walking function is called once for each snippet of JS and is passed that
   * snippet and the its original associated source's line/column location.
   *
   * @param aFn The traversal function.
   */
  SourceNode.prototype.walk = function SourceNode_walk(aFn) {
    var chunk;
    for (var i = 0, len = this.children.length; i < len; i++) {
      chunk = this.children[i];
      if (chunk[isSourceNode]) {
        chunk.walk(aFn);
      } else {
        if (chunk !== '') {
          aFn(chunk, { source: this.source,
            line: this.line,
            column: this.column,
            name: this.name });
        }
      }
    }
  };

  /**
   * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between
   * each of `this.children`.
   *
   * @param aSep The separator.
   */
  SourceNode.prototype.join = function SourceNode_join(aSep) {
    var newChildren;
    var i;
    var len = this.children.length;
    if (len > 0) {
      newChildren = [];
      for (i = 0; i < len - 1; i++) {
        newChildren.push(this.children[i]);
        newChildren.push(aSep);
      }
      newChildren.push(this.children[i]);
      this.children = newChildren;
    }
    return this;
  };

  /**
   * Call String.prototype.replace on the very right-most source snippet. Useful
   * for trimming whitespace from the end of a source node, etc.
   *
   * @param aPattern The pattern to replace.
   * @param aReplacement The thing to replace the pattern with.
   */
  SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
    var lastChild = this.children[this.children.length - 1];
    if (lastChild[isSourceNode]) {
      lastChild.replaceRight(aPattern, aReplacement);
    } else if (typeof lastChild === 'string') {
      this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
    } else {
      this.children.push(''.replace(aPattern, aReplacement));
    }
    return this;
  };

  /**
   * Set the source content for a source file. This will be added to the SourceMapGenerator
   * in the sourcesContent field.
   *
   * @param aSourceFile The filename of the source file
   * @param aSourceContent The content of the source file
   */
  SourceNode.prototype.setSourceContent = function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
    this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
  };

  /**
   * Walk over the tree of SourceNodes. The walking function is called for each
   * source file content and is passed the filename and source content.
   *
   * @param aFn The traversal function.
   */
  SourceNode.prototype.walkSourceContents = function SourceNode_walkSourceContents(aFn) {
    for (var i = 0, len = this.children.length; i < len; i++) {
      if (this.children[i][isSourceNode]) {
        this.children[i].walkSourceContents(aFn);
      }
    }

    var sources = Object.keys(this.sourceContents);
    for (var i = 0, len = sources.length; i < len; i++) {
      aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
    }
  };

  /**
   * Return the string representation of this source node. Walks over the tree
   * and concatenates all the various snippets together to one string.
   */
  SourceNode.prototype.toString = function SourceNode_toString() {
    var str = "";
    this.walk(function (chunk) {
      str += chunk;
    });
    return str;
  };

  /**
   * Returns the string representation of this source node along with a source
   * map.
   */
  SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
    var generated = {
      code: "",
      line: 1,
      column: 0
    };
    var map = new SourceMapGenerator(aArgs);
    var sourceMappingActive = false;
    var lastOriginalSource = null;
    var lastOriginalLine = null;
    var lastOriginalColumn = null;
    var lastOriginalName = null;
    this.walk(function (chunk, original) {
      generated.code += chunk;
      if (original.source !== null && original.line !== null && original.column !== null) {
        if (lastOriginalSource !== original.source || lastOriginalLine !== original.line || lastOriginalColumn !== original.column || lastOriginalName !== original.name) {
          map.addMapping({
            source: original.source,
            original: {
              line: original.line,
              column: original.column
            },
            generated: {
              line: generated.line,
              column: generated.column
            },
            name: original.name
          });
        }
        lastOriginalSource = original.source;
        lastOriginalLine = original.line;
        lastOriginalColumn = original.column;
        lastOriginalName = original.name;
        sourceMappingActive = true;
      } else if (sourceMappingActive) {
        map.addMapping({
          generated: {
            line: generated.line,
            column: generated.column
          }
        });
        lastOriginalSource = null;
        sourceMappingActive = false;
      }
      for (var idx = 0, length = chunk.length; idx < length; idx++) {
        if (chunk.charCodeAt(idx) === NEWLINE_CODE) {
          generated.line++;
          generated.column = 0;
          // Mappings end at eol
          if (idx + 1 === length) {
            lastOriginalSource = null;
            sourceMappingActive = false;
          } else if (sourceMappingActive) {
            map.addMapping({
              source: original.source,
              original: {
                line: original.line,
                column: original.column
              },
              generated: {
                line: generated.line,
                column: generated.column
              },
              name: original.name
            });
          }
        } else {
          generated.column++;
        }
      }
    });
    this.walkSourceContents(function (sourceFile, sourceContent) {
      map.setSourceContent(sourceFile, sourceContent);
    });

    return { code: generated.code, map: map };
  };

  exports.SourceNode = SourceNode;
});
$__System.registerDynamic('30', ['2e', '28', '2f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /*
   * Copyright 2009-2011 Mozilla Foundation and contributors
   * Licensed under the New BSD license. See LICENSE.txt or:
   * http://opensource.org/licenses/BSD-3-Clause
   */
  exports.SourceMapGenerator = $__require('2e').SourceMapGenerator;
  exports.SourceMapConsumer = $__require('28').SourceMapConsumer;
  exports.SourceNode = $__require('2f').SourceNode;
});
$__System.registerDynamic("31", ["15", "32", "1f", "30"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _keys = $__require("15");

  var _keys2 = _interopRequireDefault(_keys);

  var _typeof2 = $__require("32");

  var _typeof3 = _interopRequireDefault(_typeof2);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _sourceMap = $__require("30");

  var _sourceMap2 = _interopRequireDefault(_sourceMap);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var SourceMap = function () {
    function SourceMap(opts, code) {
      (0, _classCallCheck3.default)(this, SourceMap);

      this._cachedMap = null;
      this._code = code;
      this._opts = opts;
      this._rawMappings = [];
    }

    SourceMap.prototype.get = function get() {
      if (!this._cachedMap) {
        var map = this._cachedMap = new _sourceMap2.default.SourceMapGenerator({
          file: this._opts.sourceMapTarget,
          sourceRoot: this._opts.sourceRoot
        });

        var code = this._code;
        if (typeof code === "string") {
          map.setSourceContent(this._opts.sourceFileName, code);
        } else if ((typeof code === "undefined" ? "undefined" : (0, _typeof3.default)(code)) === "object") {
          (0, _keys2.default)(code).forEach(function (sourceFileName) {
            map.setSourceContent(sourceFileName, code[sourceFileName]);
          });
        }

        this._rawMappings.forEach(map.addMapping, map);
      }

      return this._cachedMap.toJSON();
    };

    SourceMap.prototype.getRawMappings = function getRawMappings() {
      return this._rawMappings.slice();
    };

    SourceMap.prototype.mark = function mark(generatedLine, generatedColumn, line, column, identifierName, filename) {
      if (this._lastGenLine !== generatedLine && line === null) return;

      if (this._lastGenLine === generatedLine && this._lastSourceLine === line && this._lastSourceColumn === column) {
        return;
      }

      this._cachedMap = null;
      this._lastGenLine = generatedLine;
      this._lastSourceLine = line;
      this._lastSourceColumn = column;

      this._rawMappings.push({
        name: identifierName || undefined,
        generated: {
          line: generatedLine,
          column: generatedColumn
        },
        source: line == null ? undefined : filename || this._opts.sourceFileName,
        original: line == null ? undefined : {
          line: line,
          column: column
        }
      });
    };

    return SourceMap;
  }();

  exports.default = SourceMap;
  module.exports = exports["default"];
});
$__System.registerDynamic('33', ['34', '35', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var weak = $__require('34');

  // 23.4 WeakSet Objects
  $__require('35')('WeakSet', function (get) {
    return function WeakSet() {
      return get(this, arguments.length > 0 ? arguments[0] : undefined);
    };
  }, {
    // 23.4.3.1 WeakSet.prototype.add(value)
    add: function add(value) {
      return weak.def(this, value, true);
    }
  }, weak, false, true);
});
$__System.registerDynamic('36', ['37', '38', '33', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('37');
  $__require('38');
  $__require('33');
  module.exports = $__require('39').WeakSet;
});
$__System.registerDynamic("3a", ["36"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("36"), __esModule: true };
});
$__System.registerDynamic('3b', ['3c', '3d', '3e'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseFindIndex = $__require('3c'),
      baseIteratee = $__require('3d'),
      toInteger = $__require('3e');

  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeMax = Math.max;

  /**
   * This method is like `_.find` except that it returns the index of the first
   * element `predicate` returns truthy for instead of the element itself.
   *
   * @static
   * @memberOf _
   * @since 1.1.0
   * @category Array
   * @param {Array} array The array to inspect.
   * @param {Function} [predicate=_.identity] The function invoked per iteration.
   * @param {number} [fromIndex=0] The index to search from.
   * @returns {number} Returns the index of the found element, else `-1`.
   * @example
   *
   * var users = [
   *   { 'user': 'barney',  'active': false },
   *   { 'user': 'fred',    'active': false },
   *   { 'user': 'pebbles', 'active': true }
   * ];
   *
   * _.findIndex(users, function(o) { return o.user == 'barney'; });
   * // => 0
   *
   * // The `_.matches` iteratee shorthand.
   * _.findIndex(users, { 'user': 'fred', 'active': false });
   * // => 1
   *
   * // The `_.matchesProperty` iteratee shorthand.
   * _.findIndex(users, ['active', false]);
   * // => 0
   *
   * // The `_.property` iteratee shorthand.
   * _.findIndex(users, 'active');
   * // => 2
   */
  function findIndex(array, predicate, fromIndex) {
    var length = array == null ? 0 : array.length;
    if (!length) {
      return -1;
    }
    var index = fromIndex == null ? 0 : toInteger(fromIndex);
    if (index < 0) {
      index = nativeMax(length + index, 0);
    }
    return baseFindIndex(array, baseIteratee(predicate, 3), index);
  }

  module.exports = findIndex;
});
$__System.registerDynamic('3f', ['40', '3b'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var createFind = $__require('40'),
      findIndex = $__require('3b');

  /**
   * Iterates over elements of `collection`, returning the first element
   * `predicate` returns truthy for. The predicate is invoked with three
   * arguments: (value, index|key, collection).
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Collection
   * @param {Array|Object} collection The collection to inspect.
   * @param {Function} [predicate=_.identity] The function invoked per iteration.
   * @param {number} [fromIndex=0] The index to search from.
   * @returns {*} Returns the matched element, else `undefined`.
   * @example
   *
   * var users = [
   *   { 'user': 'barney',  'age': 36, 'active': true },
   *   { 'user': 'fred',    'age': 40, 'active': false },
   *   { 'user': 'pebbles', 'age': 1,  'active': true }
   * ];
   *
   * _.find(users, function(o) { return o.age < 40; });
   * // => object for 'barney'
   *
   * // The `_.matches` iteratee shorthand.
   * _.find(users, { 'age': 1, 'active': true });
   * // => object for 'pebbles'
   *
   * // The `_.matchesProperty` iteratee shorthand.
   * _.find(users, ['active', false]);
   * // => object for 'fred'
   *
   * // The `_.property` iteratee shorthand.
   * _.find(users, 'active');
   * // => object for 'barney'
   */
  var find = createFind(findIndex);

  module.exports = find;
});
$__System.registerDynamic('40', ['3d', '41', '42'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseIteratee = $__require('3d'),
      isArrayLike = $__require('41'),
      keys = $__require('42');

  /**
   * Creates a `_.find` or `_.findLast` function.
   *
   * @private
   * @param {Function} findIndexFunc The function to find the collection index.
   * @returns {Function} Returns the new find function.
   */
  function createFind(findIndexFunc) {
    return function (collection, predicate, fromIndex) {
      var iterable = Object(collection);
      if (!isArrayLike(collection)) {
        var iteratee = baseIteratee(predicate, 3);
        collection = keys(collection);
        predicate = function (key) {
          return iteratee(iterable[key], key, iterable);
        };
      }
      var index = findIndexFunc(collection, predicate, fromIndex);
      return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
    };
  }

  module.exports = createFind;
});
$__System.registerDynamic('43', ['3c', '3d', '3e'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseFindIndex = $__require('3c'),
      baseIteratee = $__require('3d'),
      toInteger = $__require('3e');

  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeMax = Math.max,
      nativeMin = Math.min;

  /**
   * This method is like `_.findIndex` except that it iterates over elements
   * of `collection` from right to left.
   *
   * @static
   * @memberOf _
   * @since 2.0.0
   * @category Array
   * @param {Array} array The array to inspect.
   * @param {Function} [predicate=_.identity] The function invoked per iteration.
   * @param {number} [fromIndex=array.length-1] The index to search from.
   * @returns {number} Returns the index of the found element, else `-1`.
   * @example
   *
   * var users = [
   *   { 'user': 'barney',  'active': true },
   *   { 'user': 'fred',    'active': false },
   *   { 'user': 'pebbles', 'active': false }
   * ];
   *
   * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
   * // => 2
   *
   * // The `_.matches` iteratee shorthand.
   * _.findLastIndex(users, { 'user': 'barney', 'active': true });
   * // => 0
   *
   * // The `_.matchesProperty` iteratee shorthand.
   * _.findLastIndex(users, ['active', false]);
   * // => 2
   *
   * // The `_.property` iteratee shorthand.
   * _.findLastIndex(users, 'active');
   * // => 0
   */
  function findLastIndex(array, predicate, fromIndex) {
    var length = array == null ? 0 : array.length;
    if (!length) {
      return -1;
    }
    var index = length - 1;
    if (fromIndex !== undefined) {
      index = toInteger(fromIndex);
      index = fromIndex < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);
    }
    return baseFindIndex(array, baseIteratee(predicate, 3), index, true);
  }

  module.exports = findLastIndex;
});
$__System.registerDynamic('44', ['40', '43'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var createFind = $__require('40'),
      findLastIndex = $__require('43');

  /**
   * This method is like `_.find` except that it iterates over elements of
   * `collection` from right to left.
   *
   * @static
   * @memberOf _
   * @since 2.0.0
   * @category Collection
   * @param {Array|Object} collection The collection to inspect.
   * @param {Function} [predicate=_.identity] The function invoked per iteration.
   * @param {number} [fromIndex=collection.length-1] The index to search from.
   * @returns {*} Returns the matched element, else `undefined`.
   * @example
   *
   * _.findLast([1, 2, 3, 4], function(n) {
   *   return n % 2 == 1;
   * });
   * // => 3
   */
  var findLast = createFind(findLastIndex);

  module.exports = findLast;
});
$__System.registerDynamic('45', ['3e'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var toInteger = $__require('3e');

  /**
   * Checks if `value` is an integer.
   *
   * **Note:** This method is based on
   * [`Number.isInteger`](https://mdn.io/Number/isInteger).
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
   * @example
   *
   * _.isInteger(3);
   * // => true
   *
   * _.isInteger(Number.MIN_VALUE);
   * // => false
   *
   * _.isInteger(Infinity);
   * // => false
   *
   * _.isInteger('3');
   * // => false
   */
  function isInteger(value) {
    return typeof value == 'number' && value == toInteger(value);
  }

  module.exports = isInteger;
});
$__System.registerDynamic('46', [], true, function ($__require, exports, module) {
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	module.exports = function (str) {
		var tail = str.length;

		while (/[\s\uFEFF\u00A0]/.test(str[tail - 1])) {
			tail--;
		}

		return str.slice(0, tail);
	};
});
$__System.registerDynamic('47', [], true, function ($__require, exports, module) {
  'use strict';

  var global = this || self,
      GLOBAL = global;
  exports.byteLength = byteLength;
  exports.toByteArray = toByteArray;
  exports.fromByteArray = fromByteArray;

  var lookup = [];
  var revLookup = [];
  var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array;

  var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
  for (var i = 0, len = code.length; i < len; ++i) {
    lookup[i] = code[i];
    revLookup[code.charCodeAt(i)] = i;
  }

  revLookup['-'.charCodeAt(0)] = 62;
  revLookup['_'.charCodeAt(0)] = 63;

  function placeHoldersCount(b64) {
    var len = b64.length;
    if (len % 4 > 0) {
      throw new Error('Invalid string. Length must be a multiple of 4');
    }

    // the number of equal signs (place holders)
    // if there are two placeholders, than the two characters before it
    // represent one byte
    // if there is only one, then the three characters before it represent 2 bytes
    // this is just a cheap hack to not do indexOf twice
    return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0;
  }

  function byteLength(b64) {
    // base64 is 4/3 + up to two characters of the original data
    return b64.length * 3 / 4 - placeHoldersCount(b64);
  }

  function toByteArray(b64) {
    var i, j, l, tmp, placeHolders, arr;
    var len = b64.length;
    placeHolders = placeHoldersCount(b64);

    arr = new Arr(len * 3 / 4 - placeHolders);

    // if there are placeholders, only get up to the last complete 4 chars
    l = placeHolders > 0 ? len - 4 : len;

    var L = 0;

    for (i = 0, j = 0; i < l; i += 4, j += 3) {
      tmp = revLookup[b64.charCodeAt(i)] << 18 | revLookup[b64.charCodeAt(i + 1)] << 12 | revLookup[b64.charCodeAt(i + 2)] << 6 | revLookup[b64.charCodeAt(i + 3)];
      arr[L++] = tmp >> 16 & 0xFF;
      arr[L++] = tmp >> 8 & 0xFF;
      arr[L++] = tmp & 0xFF;
    }

    if (placeHolders === 2) {
      tmp = revLookup[b64.charCodeAt(i)] << 2 | revLookup[b64.charCodeAt(i + 1)] >> 4;
      arr[L++] = tmp & 0xFF;
    } else if (placeHolders === 1) {
      tmp = revLookup[b64.charCodeAt(i)] << 10 | revLookup[b64.charCodeAt(i + 1)] << 4 | revLookup[b64.charCodeAt(i + 2)] >> 2;
      arr[L++] = tmp >> 8 & 0xFF;
      arr[L++] = tmp & 0xFF;
    }

    return arr;
  }

  function tripletToBase64(num) {
    return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F];
  }

  function encodeChunk(uint8, start, end) {
    var tmp;
    var output = [];
    for (var i = start; i < end; i += 3) {
      tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + uint8[i + 2];
      output.push(tripletToBase64(tmp));
    }
    return output.join('');
  }

  function fromByteArray(uint8) {
    var tmp;
    var len = uint8.length;
    var extraBytes = len % 3; // if we have 1 byte left, pad 2 bytes
    var output = '';
    var parts = [];
    var maxChunkLength = 16383; // must be multiple of 3

    // go through the array every three bytes, we'll deal with trailing stuff later
    for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
      parts.push(encodeChunk(uint8, i, i + maxChunkLength > len2 ? len2 : i + maxChunkLength));
    }

    // pad the end with zeros, but make sure to not forget the extra bytes
    if (extraBytes === 1) {
      tmp = uint8[len - 1];
      output += lookup[tmp >> 2];
      output += lookup[tmp << 4 & 0x3F];
      output += '==';
    } else if (extraBytes === 2) {
      tmp = (uint8[len - 2] << 8) + uint8[len - 1];
      output += lookup[tmp >> 10];
      output += lookup[tmp >> 4 & 0x3F];
      output += lookup[tmp << 2 & 0x3F];
      output += '=';
    }

    parts.push(output);

    return parts.join('');
  }
});
$__System.registerDynamic("48", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  exports.read = function (buffer, offset, isLE, mLen, nBytes) {
    var e, m;
    var eLen = nBytes * 8 - mLen - 1;
    var eMax = (1 << eLen) - 1;
    var eBias = eMax >> 1;
    var nBits = -7;
    var i = isLE ? nBytes - 1 : 0;
    var d = isLE ? -1 : 1;
    var s = buffer[offset + i];

    i += d;

    e = s & (1 << -nBits) - 1;
    s >>= -nBits;
    nBits += eLen;
    for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}

    m = e & (1 << -nBits) - 1;
    e >>= -nBits;
    nBits += mLen;
    for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}

    if (e === 0) {
      e = 1 - eBias;
    } else if (e === eMax) {
      return m ? NaN : (s ? -1 : 1) * Infinity;
    } else {
      m = m + Math.pow(2, mLen);
      e = e - eBias;
    }
    return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
  };

  exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
    var e, m, c;
    var eLen = nBytes * 8 - mLen - 1;
    var eMax = (1 << eLen) - 1;
    var eBias = eMax >> 1;
    var rt = mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0;
    var i = isLE ? 0 : nBytes - 1;
    var d = isLE ? 1 : -1;
    var s = value < 0 || value === 0 && 1 / value < 0 ? 1 : 0;

    value = Math.abs(value);

    if (isNaN(value) || value === Infinity) {
      m = isNaN(value) ? 1 : 0;
      e = eMax;
    } else {
      e = Math.floor(Math.log(value) / Math.LN2);
      if (value * (c = Math.pow(2, -e)) < 1) {
        e--;
        c *= 2;
      }
      if (e + eBias >= 1) {
        value += rt / c;
      } else {
        value += rt * Math.pow(2, 1 - eBias);
      }
      if (value * c >= 2) {
        e++;
        c /= 2;
      }

      if (e + eBias >= eMax) {
        m = 0;
        e = eMax;
      } else if (e + eBias >= 1) {
        m = (value * c - 1) * Math.pow(2, mLen);
        e = e + eBias;
      } else {
        m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
        e = 0;
      }
    }

    for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

    e = e << mLen | m;
    eLen += mLen;
    for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

    buffer[offset + i - d] |= s * 128;
  };
});
$__System.registerDynamic('49', ['47', '48'], true, function ($__require, exports, module) {
  /*!
   * The buffer module from node.js, for the browser.
   *
   * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
   * @license  MIT
   */
  /* eslint-disable no-proto */

  'use strict';

  var global = this || self,
      GLOBAL = global;
  var base64 = $__require('47');
  var ieee754 = $__require('48');

  exports.Buffer = Buffer;
  exports.SlowBuffer = SlowBuffer;
  exports.INSPECT_MAX_BYTES = 50;

  var K_MAX_LENGTH = 0x7fffffff;
  exports.kMaxLength = K_MAX_LENGTH;

  /**
   * If `Buffer.TYPED_ARRAY_SUPPORT`:
   *   === true    Use Uint8Array implementation (fastest)
   *   === false   Print warning and recommend using `buffer` v4.x which has an Object
   *               implementation (most compatible, even IE6)
   *
   * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
   * Opera 11.6+, iOS 4.2+.
   *
   * We report that the browser does not support typed arrays if the are not subclassable
   * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
   * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
   * for __proto__ and has a buggy typed array implementation.
   */
  Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport();

  if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' && typeof console.error === 'function') {
    console.error('This browser lacks typed array (Uint8Array) support which is required by ' + '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.');
  }

  function typedArraySupport() {
    // Can typed array instances can be augmented?
    try {
      var arr = new Uint8Array(1);
      arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () {
          return 42;
        } };
      return arr.foo() === 42;
    } catch (e) {
      return false;
    }
  }

  function createBuffer(length) {
    if (length > K_MAX_LENGTH) {
      throw new RangeError('Invalid typed array length');
    }
    // Return an augmented `Uint8Array` instance
    var buf = new Uint8Array(length);
    buf.__proto__ = Buffer.prototype;
    return buf;
  }

  /**
   * The Buffer constructor returns instances of `Uint8Array` that have their
   * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
   * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
   * and the `Uint8Array` methods. Square bracket notation works as expected -- it
   * returns a single octet.
   *
   * The `Uint8Array` prototype remains unmodified.
   */

  function Buffer(arg, encodingOrOffset, length) {
    // Common case.
    if (typeof arg === 'number') {
      if (typeof encodingOrOffset === 'string') {
        throw new Error('If encoding is specified then the first argument must be a string');
      }
      return allocUnsafe(arg);
    }
    return from(arg, encodingOrOffset, length);
  }

  // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
  if (typeof Symbol !== 'undefined' && Symbol.species && Buffer[Symbol.species] === Buffer) {
    Object.defineProperty(Buffer, Symbol.species, {
      value: null,
      configurable: true,
      enumerable: false,
      writable: false
    });
  }

  Buffer.poolSize = 8192; // not used by this implementation

  function from(value, encodingOrOffset, length) {
    if (typeof value === 'number') {
      throw new TypeError('"value" argument must not be a number');
    }

    if (value instanceof ArrayBuffer) {
      return fromArrayBuffer(value, encodingOrOffset, length);
    }

    if (typeof value === 'string') {
      return fromString(value, encodingOrOffset);
    }

    return fromObject(value);
  }

  /**
   * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
   * if value is a number.
   * Buffer.from(str[, encoding])
   * Buffer.from(array)
   * Buffer.from(buffer)
   * Buffer.from(arrayBuffer[, byteOffset[, length]])
   **/
  Buffer.from = function (value, encodingOrOffset, length) {
    return from(value, encodingOrOffset, length);
  };

  // Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
  // https://github.com/feross/buffer/pull/148
  Buffer.prototype.__proto__ = Uint8Array.prototype;
  Buffer.__proto__ = Uint8Array;

  function assertSize(size) {
    if (typeof size !== 'number') {
      throw new TypeError('"size" argument must be a number');
    } else if (size < 0) {
      throw new RangeError('"size" argument must not be negative');
    }
  }

  function alloc(size, fill, encoding) {
    assertSize(size);
    if (size <= 0) {
      return createBuffer(size);
    }
    if (fill !== undefined) {
      // Only pay attention to encoding if it's a string. This
      // prevents accidentally sending in a number that would
      // be interpretted as a start offset.
      return typeof encoding === 'string' ? createBuffer(size).fill(fill, encoding) : createBuffer(size).fill(fill);
    }
    return createBuffer(size);
  }

  /**
   * Creates a new filled Buffer instance.
   * alloc(size[, fill[, encoding]])
   **/
  Buffer.alloc = function (size, fill, encoding) {
    return alloc(size, fill, encoding);
  };

  function allocUnsafe(size) {
    assertSize(size);
    return createBuffer(size < 0 ? 0 : checked(size) | 0);
  }

  /**
   * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
   * */
  Buffer.allocUnsafe = function (size) {
    return allocUnsafe(size);
  };
  /**
   * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
   */
  Buffer.allocUnsafeSlow = function (size) {
    return allocUnsafe(size);
  };

  function fromString(string, encoding) {
    if (typeof encoding !== 'string' || encoding === '') {
      encoding = 'utf8';
    }

    if (!Buffer.isEncoding(encoding)) {
      throw new TypeError('"encoding" must be a valid string encoding');
    }

    var length = byteLength(string, encoding) | 0;
    var buf = createBuffer(length);

    var actual = buf.write(string, encoding);

    if (actual !== length) {
      // Writing a hex string, for example, that contains invalid characters will
      // cause everything after the first invalid character to be ignored. (e.g.
      // 'abxxcd' will be treated as 'ab')
      buf = buf.slice(0, actual);
    }

    return buf;
  }

  function fromArrayLike(array) {
    var length = array.length < 0 ? 0 : checked(array.length) | 0;
    var buf = createBuffer(length);
    for (var i = 0; i < length; i += 1) {
      buf[i] = array[i] & 255;
    }
    return buf;
  }

  function fromArrayBuffer(array, byteOffset, length) {
    if (byteOffset < 0 || array.byteLength < byteOffset) {
      throw new RangeError('\'offset\' is out of bounds');
    }

    if (array.byteLength < byteOffset + (length || 0)) {
      throw new RangeError('\'length\' is out of bounds');
    }

    var buf;
    if (byteOffset === undefined && length === undefined) {
      buf = new Uint8Array(array);
    } else if (length === undefined) {
      buf = new Uint8Array(array, byteOffset);
    } else {
      buf = new Uint8Array(array, byteOffset, length);
    }

    // Return an augmented `Uint8Array` instance
    buf.__proto__ = Buffer.prototype;
    return buf;
  }

  function fromObject(obj) {
    if (Buffer.isBuffer(obj)) {
      var len = checked(obj.length) | 0;
      var buf = createBuffer(len);

      if (buf.length === 0) {
        return buf;
      }

      obj.copy(buf, 0, 0, len);
      return buf;
    }

    if (obj) {
      if (isArrayBufferView(obj) || 'length' in obj) {
        if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
          return createBuffer(0);
        }
        return fromArrayLike(obj);
      }

      if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
        return fromArrayLike(obj.data);
      }
    }

    throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.');
  }

  function checked(length) {
    // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
    // length is NaN (which is otherwise coerced to zero.)
    if (length >= K_MAX_LENGTH) {
      throw new RangeError('Attempt to allocate Buffer larger than maximum ' + 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes');
    }
    return length | 0;
  }

  function SlowBuffer(length) {
    if (+length != length) {
      // eslint-disable-line eqeqeq
      length = 0;
    }
    return Buffer.alloc(+length);
  }

  Buffer.isBuffer = function isBuffer(b) {
    return b != null && b._isBuffer === true;
  };

  Buffer.compare = function compare(a, b) {
    if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
      throw new TypeError('Arguments must be Buffers');
    }

    if (a === b) return 0;

    var x = a.length;
    var y = b.length;

    for (var i = 0, len = Math.min(x, y); i < len; ++i) {
      if (a[i] !== b[i]) {
        x = a[i];
        y = b[i];
        break;
      }
    }

    if (x < y) return -1;
    if (y < x) return 1;
    return 0;
  };

  Buffer.isEncoding = function isEncoding(encoding) {
    switch (String(encoding).toLowerCase()) {
      case 'hex':
      case 'utf8':
      case 'utf-8':
      case 'ascii':
      case 'latin1':
      case 'binary':
      case 'base64':
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return true;
      default:
        return false;
    }
  };

  Buffer.concat = function concat(list, length) {
    if (!Array.isArray(list)) {
      throw new TypeError('"list" argument must be an Array of Buffers');
    }

    if (list.length === 0) {
      return Buffer.alloc(0);
    }

    var i;
    if (length === undefined) {
      length = 0;
      for (i = 0; i < list.length; ++i) {
        length += list[i].length;
      }
    }

    var buffer = Buffer.allocUnsafe(length);
    var pos = 0;
    for (i = 0; i < list.length; ++i) {
      var buf = list[i];
      if (!Buffer.isBuffer(buf)) {
        throw new TypeError('"list" argument must be an Array of Buffers');
      }
      buf.copy(buffer, pos);
      pos += buf.length;
    }
    return buffer;
  };

  function byteLength(string, encoding) {
    if (Buffer.isBuffer(string)) {
      return string.length;
    }
    if (isArrayBufferView(string) || string instanceof ArrayBuffer) {
      return string.byteLength;
    }
    if (typeof string !== 'string') {
      string = '' + string;
    }

    var len = string.length;
    if (len === 0) return 0;

    // Use a for loop to avoid recursion
    var loweredCase = false;
    for (;;) {
      switch (encoding) {
        case 'ascii':
        case 'latin1':
        case 'binary':
          return len;
        case 'utf8':
        case 'utf-8':
        case undefined:
          return utf8ToBytes(string).length;
        case 'ucs2':
        case 'ucs-2':
        case 'utf16le':
        case 'utf-16le':
          return len * 2;
        case 'hex':
          return len >>> 1;
        case 'base64':
          return base64ToBytes(string).length;
        default:
          if (loweredCase) return utf8ToBytes(string).length; // assume utf8
          encoding = ('' + encoding).toLowerCase();
          loweredCase = true;
      }
    }
  }
  Buffer.byteLength = byteLength;

  function slowToString(encoding, start, end) {
    var loweredCase = false;

    // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
    // property of a typed array.

    // This behaves neither like String nor Uint8Array in that we set start/end
    // to their upper/lower bounds if the value passed is out of range.
    // undefined is handled specially as per ECMA-262 6th Edition,
    // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
    if (start === undefined || start < 0) {
      start = 0;
    }
    // Return early if start > this.length. Done here to prevent potential uint32
    // coercion fail below.
    if (start > this.length) {
      return '';
    }

    if (end === undefined || end > this.length) {
      end = this.length;
    }

    if (end <= 0) {
      return '';
    }

    // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
    end >>>= 0;
    start >>>= 0;

    if (end <= start) {
      return '';
    }

    if (!encoding) encoding = 'utf8';

    while (true) {
      switch (encoding) {
        case 'hex':
          return hexSlice(this, start, end);

        case 'utf8':
        case 'utf-8':
          return utf8Slice(this, start, end);

        case 'ascii':
          return asciiSlice(this, start, end);

        case 'latin1':
        case 'binary':
          return latin1Slice(this, start, end);

        case 'base64':
          return base64Slice(this, start, end);

        case 'ucs2':
        case 'ucs-2':
        case 'utf16le':
        case 'utf-16le':
          return utf16leSlice(this, start, end);

        default:
          if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding);
          encoding = (encoding + '').toLowerCase();
          loweredCase = true;
      }
    }
  }

  // This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
  // to detect a Buffer instance. It's not possible to use `instanceof Buffer`
  // reliably in a browserify context because there could be multiple different
  // copies of the 'buffer' package in use. This method works even for Buffer
  // instances that were created from another copy of the `buffer` package.
  // See: https://github.com/feross/buffer/issues/154
  Buffer.prototype._isBuffer = true;

  function swap(b, n, m) {
    var i = b[n];
    b[n] = b[m];
    b[m] = i;
  }

  Buffer.prototype.swap16 = function swap16() {
    var len = this.length;
    if (len % 2 !== 0) {
      throw new RangeError('Buffer size must be a multiple of 16-bits');
    }
    for (var i = 0; i < len; i += 2) {
      swap(this, i, i + 1);
    }
    return this;
  };

  Buffer.prototype.swap32 = function swap32() {
    var len = this.length;
    if (len % 4 !== 0) {
      throw new RangeError('Buffer size must be a multiple of 32-bits');
    }
    for (var i = 0; i < len; i += 4) {
      swap(this, i, i + 3);
      swap(this, i + 1, i + 2);
    }
    return this;
  };

  Buffer.prototype.swap64 = function swap64() {
    var len = this.length;
    if (len % 8 !== 0) {
      throw new RangeError('Buffer size must be a multiple of 64-bits');
    }
    for (var i = 0; i < len; i += 8) {
      swap(this, i, i + 7);
      swap(this, i + 1, i + 6);
      swap(this, i + 2, i + 5);
      swap(this, i + 3, i + 4);
    }
    return this;
  };

  Buffer.prototype.toString = function toString() {
    var length = this.length;
    if (length === 0) return '';
    if (arguments.length === 0) return utf8Slice(this, 0, length);
    return slowToString.apply(this, arguments);
  };

  Buffer.prototype.equals = function equals(b) {
    if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer');
    if (this === b) return true;
    return Buffer.compare(this, b) === 0;
  };

  Buffer.prototype.inspect = function inspect() {
    var str = '';
    var max = exports.INSPECT_MAX_BYTES;
    if (this.length > 0) {
      str = this.toString('hex', 0, max).match(/.{2}/g).join(' ');
      if (this.length > max) str += ' ... ';
    }
    return '<Buffer ' + str + '>';
  };

  Buffer.prototype.compare = function compare(target, start, end, thisStart, thisEnd) {
    if (!Buffer.isBuffer(target)) {
      throw new TypeError('Argument must be a Buffer');
    }

    if (start === undefined) {
      start = 0;
    }
    if (end === undefined) {
      end = target ? target.length : 0;
    }
    if (thisStart === undefined) {
      thisStart = 0;
    }
    if (thisEnd === undefined) {
      thisEnd = this.length;
    }

    if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
      throw new RangeError('out of range index');
    }

    if (thisStart >= thisEnd && start >= end) {
      return 0;
    }
    if (thisStart >= thisEnd) {
      return -1;
    }
    if (start >= end) {
      return 1;
    }

    start >>>= 0;
    end >>>= 0;
    thisStart >>>= 0;
    thisEnd >>>= 0;

    if (this === target) return 0;

    var x = thisEnd - thisStart;
    var y = end - start;
    var len = Math.min(x, y);

    var thisCopy = this.slice(thisStart, thisEnd);
    var targetCopy = target.slice(start, end);

    for (var i = 0; i < len; ++i) {
      if (thisCopy[i] !== targetCopy[i]) {
        x = thisCopy[i];
        y = targetCopy[i];
        break;
      }
    }

    if (x < y) return -1;
    if (y < x) return 1;
    return 0;
  };

  // Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
  // OR the last index of `val` in `buffer` at offset <= `byteOffset`.
  //
  // Arguments:
  // - buffer - a Buffer to search
  // - val - a string, Buffer, or number
  // - byteOffset - an index into `buffer`; will be clamped to an int32
  // - encoding - an optional encoding, relevant is val is a string
  // - dir - true for indexOf, false for lastIndexOf
  function bidirectionalIndexOf(buffer, val, byteOffset, encoding, dir) {
    // Empty buffer means no match
    if (buffer.length === 0) return -1;

    // Normalize byteOffset
    if (typeof byteOffset === 'string') {
      encoding = byteOffset;
      byteOffset = 0;
    } else if (byteOffset > 0x7fffffff) {
      byteOffset = 0x7fffffff;
    } else if (byteOffset < -0x80000000) {
      byteOffset = -0x80000000;
    }
    byteOffset = +byteOffset; // Coerce to Number.
    if (numberIsNaN(byteOffset)) {
      // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
      byteOffset = dir ? 0 : buffer.length - 1;
    }

    // Normalize byteOffset: negative offsets start from the end of the buffer
    if (byteOffset < 0) byteOffset = buffer.length + byteOffset;
    if (byteOffset >= buffer.length) {
      if (dir) return -1;else byteOffset = buffer.length - 1;
    } else if (byteOffset < 0) {
      if (dir) byteOffset = 0;else return -1;
    }

    // Normalize val
    if (typeof val === 'string') {
      val = Buffer.from(val, encoding);
    }

    // Finally, search either indexOf (if dir is true) or lastIndexOf
    if (Buffer.isBuffer(val)) {
      // Special case: looking for empty string/buffer always fails
      if (val.length === 0) {
        return -1;
      }
      return arrayIndexOf(buffer, val, byteOffset, encoding, dir);
    } else if (typeof val === 'number') {
      val = val & 0xFF; // Search for a byte value [0-255]
      if (typeof Uint8Array.prototype.indexOf === 'function') {
        if (dir) {
          return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset);
        } else {
          return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset);
        }
      }
      return arrayIndexOf(buffer, [val], byteOffset, encoding, dir);
    }

    throw new TypeError('val must be string, number or Buffer');
  }

  function arrayIndexOf(arr, val, byteOffset, encoding, dir) {
    var indexSize = 1;
    var arrLength = arr.length;
    var valLength = val.length;

    if (encoding !== undefined) {
      encoding = String(encoding).toLowerCase();
      if (encoding === 'ucs2' || encoding === 'ucs-2' || encoding === 'utf16le' || encoding === 'utf-16le') {
        if (arr.length < 2 || val.length < 2) {
          return -1;
        }
        indexSize = 2;
        arrLength /= 2;
        valLength /= 2;
        byteOffset /= 2;
      }
    }

    function read(buf, i) {
      if (indexSize === 1) {
        return buf[i];
      } else {
        return buf.readUInt16BE(i * indexSize);
      }
    }

    var i;
    if (dir) {
      var foundIndex = -1;
      for (i = byteOffset; i < arrLength; i++) {
        if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
          if (foundIndex === -1) foundIndex = i;
          if (i - foundIndex + 1 === valLength) return foundIndex * indexSize;
        } else {
          if (foundIndex !== -1) i -= i - foundIndex;
          foundIndex = -1;
        }
      }
    } else {
      if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength;
      for (i = byteOffset; i >= 0; i--) {
        var found = true;
        for (var j = 0; j < valLength; j++) {
          if (read(arr, i + j) !== read(val, j)) {
            found = false;
            break;
          }
        }
        if (found) return i;
      }
    }

    return -1;
  }

  Buffer.prototype.includes = function includes(val, byteOffset, encoding) {
    return this.indexOf(val, byteOffset, encoding) !== -1;
  };

  Buffer.prototype.indexOf = function indexOf(val, byteOffset, encoding) {
    return bidirectionalIndexOf(this, val, byteOffset, encoding, true);
  };

  Buffer.prototype.lastIndexOf = function lastIndexOf(val, byteOffset, encoding) {
    return bidirectionalIndexOf(this, val, byteOffset, encoding, false);
  };

  function hexWrite(buf, string, offset, length) {
    offset = Number(offset) || 0;
    var remaining = buf.length - offset;
    if (!length) {
      length = remaining;
    } else {
      length = Number(length);
      if (length > remaining) {
        length = remaining;
      }
    }

    // must be an even number of digits
    var strLen = string.length;
    if (strLen % 2 !== 0) throw new TypeError('Invalid hex string');

    if (length > strLen / 2) {
      length = strLen / 2;
    }
    for (var i = 0; i < length; ++i) {
      var parsed = parseInt(string.substr(i * 2, 2), 16);
      if (numberIsNaN(parsed)) return i;
      buf[offset + i] = parsed;
    }
    return i;
  }

  function utf8Write(buf, string, offset, length) {
    return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length);
  }

  function asciiWrite(buf, string, offset, length) {
    return blitBuffer(asciiToBytes(string), buf, offset, length);
  }

  function latin1Write(buf, string, offset, length) {
    return asciiWrite(buf, string, offset, length);
  }

  function base64Write(buf, string, offset, length) {
    return blitBuffer(base64ToBytes(string), buf, offset, length);
  }

  function ucs2Write(buf, string, offset, length) {
    return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length);
  }

  Buffer.prototype.write = function write(string, offset, length, encoding) {
    // Buffer#write(string)
    if (offset === undefined) {
      encoding = 'utf8';
      length = this.length;
      offset = 0;
      // Buffer#write(string, encoding)
    } else if (length === undefined && typeof offset === 'string') {
      encoding = offset;
      length = this.length;
      offset = 0;
      // Buffer#write(string, offset[, length][, encoding])
    } else if (isFinite(offset)) {
      offset = offset >>> 0;
      if (isFinite(length)) {
        length = length >>> 0;
        if (encoding === undefined) encoding = 'utf8';
      } else {
        encoding = length;
        length = undefined;
      }
    } else {
      throw new Error('Buffer.write(string, encoding, offset[, length]) is no longer supported');
    }

    var remaining = this.length - offset;
    if (length === undefined || length > remaining) length = remaining;

    if (string.length > 0 && (length < 0 || offset < 0) || offset > this.length) {
      throw new RangeError('Attempt to write outside buffer bounds');
    }

    if (!encoding) encoding = 'utf8';

    var loweredCase = false;
    for (;;) {
      switch (encoding) {
        case 'hex':
          return hexWrite(this, string, offset, length);

        case 'utf8':
        case 'utf-8':
          return utf8Write(this, string, offset, length);

        case 'ascii':
          return asciiWrite(this, string, offset, length);

        case 'latin1':
        case 'binary':
          return latin1Write(this, string, offset, length);

        case 'base64':
          // Warning: maxLength not taken into account in base64Write
          return base64Write(this, string, offset, length);

        case 'ucs2':
        case 'ucs-2':
        case 'utf16le':
        case 'utf-16le':
          return ucs2Write(this, string, offset, length);

        default:
          if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding);
          encoding = ('' + encoding).toLowerCase();
          loweredCase = true;
      }
    }
  };

  Buffer.prototype.toJSON = function toJSON() {
    return {
      type: 'Buffer',
      data: Array.prototype.slice.call(this._arr || this, 0)
    };
  };

  function base64Slice(buf, start, end) {
    if (start === 0 && end === buf.length) {
      return base64.fromByteArray(buf);
    } else {
      return base64.fromByteArray(buf.slice(start, end));
    }
  }

  function utf8Slice(buf, start, end) {
    end = Math.min(buf.length, end);
    var res = [];

    var i = start;
    while (i < end) {
      var firstByte = buf[i];
      var codePoint = null;
      var bytesPerSequence = firstByte > 0xEF ? 4 : firstByte > 0xDF ? 3 : firstByte > 0xBF ? 2 : 1;

      if (i + bytesPerSequence <= end) {
        var secondByte, thirdByte, fourthByte, tempCodePoint;

        switch (bytesPerSequence) {
          case 1:
            if (firstByte < 0x80) {
              codePoint = firstByte;
            }
            break;
          case 2:
            secondByte = buf[i + 1];
            if ((secondByte & 0xC0) === 0x80) {
              tempCodePoint = (firstByte & 0x1F) << 0x6 | secondByte & 0x3F;
              if (tempCodePoint > 0x7F) {
                codePoint = tempCodePoint;
              }
            }
            break;
          case 3:
            secondByte = buf[i + 1];
            thirdByte = buf[i + 2];
            if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
              tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | thirdByte & 0x3F;
              if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
                codePoint = tempCodePoint;
              }
            }
            break;
          case 4:
            secondByte = buf[i + 1];
            thirdByte = buf[i + 2];
            fourthByte = buf[i + 3];
            if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
              tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | fourthByte & 0x3F;
              if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
                codePoint = tempCodePoint;
              }
            }
        }
      }

      if (codePoint === null) {
        // we did not generate a valid codePoint so insert a
        // replacement char (U+FFFD) and advance only 1 byte
        codePoint = 0xFFFD;
        bytesPerSequence = 1;
      } else if (codePoint > 0xFFFF) {
        // encode to utf16 (surrogate pair dance)
        codePoint -= 0x10000;
        res.push(codePoint >>> 10 & 0x3FF | 0xD800);
        codePoint = 0xDC00 | codePoint & 0x3FF;
      }

      res.push(codePoint);
      i += bytesPerSequence;
    }

    return decodeCodePointsArray(res);
  }

  // Based on http://stackoverflow.com/a/22747272/680742, the browser with
  // the lowest limit is Chrome, with 0x10000 args.
  // We go 1 magnitude less, for safety
  var MAX_ARGUMENTS_LENGTH = 0x1000;

  function decodeCodePointsArray(codePoints) {
    var len = codePoints.length;
    if (len <= MAX_ARGUMENTS_LENGTH) {
      return String.fromCharCode.apply(String, codePoints); // avoid extra slice()
    }

    // Decode in chunks to avoid "call stack size exceeded".
    var res = '';
    var i = 0;
    while (i < len) {
      res += String.fromCharCode.apply(String, codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH));
    }
    return res;
  }

  function asciiSlice(buf, start, end) {
    var ret = '';
    end = Math.min(buf.length, end);

    for (var i = start; i < end; ++i) {
      ret += String.fromCharCode(buf[i] & 0x7F);
    }
    return ret;
  }

  function latin1Slice(buf, start, end) {
    var ret = '';
    end = Math.min(buf.length, end);

    for (var i = start; i < end; ++i) {
      ret += String.fromCharCode(buf[i]);
    }
    return ret;
  }

  function hexSlice(buf, start, end) {
    var len = buf.length;

    if (!start || start < 0) start = 0;
    if (!end || end < 0 || end > len) end = len;

    var out = '';
    for (var i = start; i < end; ++i) {
      out += toHex(buf[i]);
    }
    return out;
  }

  function utf16leSlice(buf, start, end) {
    var bytes = buf.slice(start, end);
    var res = '';
    for (var i = 0; i < bytes.length; i += 2) {
      res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256);
    }
    return res;
  }

  Buffer.prototype.slice = function slice(start, end) {
    var len = this.length;
    start = ~~start;
    end = end === undefined ? len : ~~end;

    if (start < 0) {
      start += len;
      if (start < 0) start = 0;
    } else if (start > len) {
      start = len;
    }

    if (end < 0) {
      end += len;
      if (end < 0) end = 0;
    } else if (end > len) {
      end = len;
    }

    if (end < start) end = start;

    var newBuf = this.subarray(start, end);
    // Return an augmented `Uint8Array` instance
    newBuf.__proto__ = Buffer.prototype;
    return newBuf;
  };

  /*
   * Need to make sure that buffer isn't trying to write out of bounds.
   */
  function checkOffset(offset, ext, length) {
    if (offset % 1 !== 0 || offset < 0) throw new RangeError('offset is not uint');
    if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length');
  }

  Buffer.prototype.readUIntLE = function readUIntLE(offset, byteLength, noAssert) {
    offset = offset >>> 0;
    byteLength = byteLength >>> 0;
    if (!noAssert) checkOffset(offset, byteLength, this.length);

    var val = this[offset];
    var mul = 1;
    var i = 0;
    while (++i < byteLength && (mul *= 0x100)) {
      val += this[offset + i] * mul;
    }

    return val;
  };

  Buffer.prototype.readUIntBE = function readUIntBE(offset, byteLength, noAssert) {
    offset = offset >>> 0;
    byteLength = byteLength >>> 0;
    if (!noAssert) {
      checkOffset(offset, byteLength, this.length);
    }

    var val = this[offset + --byteLength];
    var mul = 1;
    while (byteLength > 0 && (mul *= 0x100)) {
      val += this[offset + --byteLength] * mul;
    }

    return val;
  };

  Buffer.prototype.readUInt8 = function readUInt8(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 1, this.length);
    return this[offset];
  };

  Buffer.prototype.readUInt16LE = function readUInt16LE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 2, this.length);
    return this[offset] | this[offset + 1] << 8;
  };

  Buffer.prototype.readUInt16BE = function readUInt16BE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 2, this.length);
    return this[offset] << 8 | this[offset + 1];
  };

  Buffer.prototype.readUInt32LE = function readUInt32LE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 4, this.length);

    return (this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16) + this[offset + 3] * 0x1000000;
  };

  Buffer.prototype.readUInt32BE = function readUInt32BE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 4, this.length);

    return this[offset] * 0x1000000 + (this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3]);
  };

  Buffer.prototype.readIntLE = function readIntLE(offset, byteLength, noAssert) {
    offset = offset >>> 0;
    byteLength = byteLength >>> 0;
    if (!noAssert) checkOffset(offset, byteLength, this.length);

    var val = this[offset];
    var mul = 1;
    var i = 0;
    while (++i < byteLength && (mul *= 0x100)) {
      val += this[offset + i] * mul;
    }
    mul *= 0x80;

    if (val >= mul) val -= Math.pow(2, 8 * byteLength);

    return val;
  };

  Buffer.prototype.readIntBE = function readIntBE(offset, byteLength, noAssert) {
    offset = offset >>> 0;
    byteLength = byteLength >>> 0;
    if (!noAssert) checkOffset(offset, byteLength, this.length);

    var i = byteLength;
    var mul = 1;
    var val = this[offset + --i];
    while (i > 0 && (mul *= 0x100)) {
      val += this[offset + --i] * mul;
    }
    mul *= 0x80;

    if (val >= mul) val -= Math.pow(2, 8 * byteLength);

    return val;
  };

  Buffer.prototype.readInt8 = function readInt8(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 1, this.length);
    if (!(this[offset] & 0x80)) return this[offset];
    return (0xff - this[offset] + 1) * -1;
  };

  Buffer.prototype.readInt16LE = function readInt16LE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 2, this.length);
    var val = this[offset] | this[offset + 1] << 8;
    return val & 0x8000 ? val | 0xFFFF0000 : val;
  };

  Buffer.prototype.readInt16BE = function readInt16BE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 2, this.length);
    var val = this[offset + 1] | this[offset] << 8;
    return val & 0x8000 ? val | 0xFFFF0000 : val;
  };

  Buffer.prototype.readInt32LE = function readInt32LE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 4, this.length);

    return this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16 | this[offset + 3] << 24;
  };

  Buffer.prototype.readInt32BE = function readInt32BE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 4, this.length);

    return this[offset] << 24 | this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3];
  };

  Buffer.prototype.readFloatLE = function readFloatLE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 4, this.length);
    return ieee754.read(this, offset, true, 23, 4);
  };

  Buffer.prototype.readFloatBE = function readFloatBE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 4, this.length);
    return ieee754.read(this, offset, false, 23, 4);
  };

  Buffer.prototype.readDoubleLE = function readDoubleLE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 8, this.length);
    return ieee754.read(this, offset, true, 52, 8);
  };

  Buffer.prototype.readDoubleBE = function readDoubleBE(offset, noAssert) {
    offset = offset >>> 0;
    if (!noAssert) checkOffset(offset, 8, this.length);
    return ieee754.read(this, offset, false, 52, 8);
  };

  function checkInt(buf, value, offset, ext, max, min) {
    if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance');
    if (value > max || value < min) throw new RangeError('"value" argument is out of bounds');
    if (offset + ext > buf.length) throw new RangeError('Index out of range');
  }

  Buffer.prototype.writeUIntLE = function writeUIntLE(value, offset, byteLength, noAssert) {
    value = +value;
    offset = offset >>> 0;
    byteLength = byteLength >>> 0;
    if (!noAssert) {
      var maxBytes = Math.pow(2, 8 * byteLength) - 1;
      checkInt(this, value, offset, byteLength, maxBytes, 0);
    }

    var mul = 1;
    var i = 0;
    this[offset] = value & 0xFF;
    while (++i < byteLength && (mul *= 0x100)) {
      this[offset + i] = value / mul & 0xFF;
    }

    return offset + byteLength;
  };

  Buffer.prototype.writeUIntBE = function writeUIntBE(value, offset, byteLength, noAssert) {
    value = +value;
    offset = offset >>> 0;
    byteLength = byteLength >>> 0;
    if (!noAssert) {
      var maxBytes = Math.pow(2, 8 * byteLength) - 1;
      checkInt(this, value, offset, byteLength, maxBytes, 0);
    }

    var i = byteLength - 1;
    var mul = 1;
    this[offset + i] = value & 0xFF;
    while (--i >= 0 && (mul *= 0x100)) {
      this[offset + i] = value / mul & 0xFF;
    }

    return offset + byteLength;
  };

  Buffer.prototype.writeUInt8 = function writeUInt8(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0);
    this[offset] = value & 0xff;
    return offset + 1;
  };

  Buffer.prototype.writeUInt16LE = function writeUInt16LE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0);
    this[offset] = value & 0xff;
    this[offset + 1] = value >>> 8;
    return offset + 2;
  };

  Buffer.prototype.writeUInt16BE = function writeUInt16BE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0);
    this[offset] = value >>> 8;
    this[offset + 1] = value & 0xff;
    return offset + 2;
  };

  Buffer.prototype.writeUInt32LE = function writeUInt32LE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0);
    this[offset + 3] = value >>> 24;
    this[offset + 2] = value >>> 16;
    this[offset + 1] = value >>> 8;
    this[offset] = value & 0xff;
    return offset + 4;
  };

  Buffer.prototype.writeUInt32BE = function writeUInt32BE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0);
    this[offset] = value >>> 24;
    this[offset + 1] = value >>> 16;
    this[offset + 2] = value >>> 8;
    this[offset + 3] = value & 0xff;
    return offset + 4;
  };

  Buffer.prototype.writeIntLE = function writeIntLE(value, offset, byteLength, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) {
      var limit = Math.pow(2, 8 * byteLength - 1);

      checkInt(this, value, offset, byteLength, limit - 1, -limit);
    }

    var i = 0;
    var mul = 1;
    var sub = 0;
    this[offset] = value & 0xFF;
    while (++i < byteLength && (mul *= 0x100)) {
      if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
        sub = 1;
      }
      this[offset + i] = (value / mul >> 0) - sub & 0xFF;
    }

    return offset + byteLength;
  };

  Buffer.prototype.writeIntBE = function writeIntBE(value, offset, byteLength, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) {
      var limit = Math.pow(2, 8 * byteLength - 1);

      checkInt(this, value, offset, byteLength, limit - 1, -limit);
    }

    var i = byteLength - 1;
    var mul = 1;
    var sub = 0;
    this[offset + i] = value & 0xFF;
    while (--i >= 0 && (mul *= 0x100)) {
      if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
        sub = 1;
      }
      this[offset + i] = (value / mul >> 0) - sub & 0xFF;
    }

    return offset + byteLength;
  };

  Buffer.prototype.writeInt8 = function writeInt8(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80);
    if (value < 0) value = 0xff + value + 1;
    this[offset] = value & 0xff;
    return offset + 1;
  };

  Buffer.prototype.writeInt16LE = function writeInt16LE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000);
    this[offset] = value & 0xff;
    this[offset + 1] = value >>> 8;
    return offset + 2;
  };

  Buffer.prototype.writeInt16BE = function writeInt16BE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000);
    this[offset] = value >>> 8;
    this[offset + 1] = value & 0xff;
    return offset + 2;
  };

  Buffer.prototype.writeInt32LE = function writeInt32LE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000);
    this[offset] = value & 0xff;
    this[offset + 1] = value >>> 8;
    this[offset + 2] = value >>> 16;
    this[offset + 3] = value >>> 24;
    return offset + 4;
  };

  Buffer.prototype.writeInt32BE = function writeInt32BE(value, offset, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000);
    if (value < 0) value = 0xffffffff + value + 1;
    this[offset] = value >>> 24;
    this[offset + 1] = value >>> 16;
    this[offset + 2] = value >>> 8;
    this[offset + 3] = value & 0xff;
    return offset + 4;
  };

  function checkIEEE754(buf, value, offset, ext, max, min) {
    if (offset + ext > buf.length) throw new RangeError('Index out of range');
    if (offset < 0) throw new RangeError('Index out of range');
  }

  function writeFloat(buf, value, offset, littleEndian, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) {
      checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38);
    }
    ieee754.write(buf, value, offset, littleEndian, 23, 4);
    return offset + 4;
  }

  Buffer.prototype.writeFloatLE = function writeFloatLE(value, offset, noAssert) {
    return writeFloat(this, value, offset, true, noAssert);
  };

  Buffer.prototype.writeFloatBE = function writeFloatBE(value, offset, noAssert) {
    return writeFloat(this, value, offset, false, noAssert);
  };

  function writeDouble(buf, value, offset, littleEndian, noAssert) {
    value = +value;
    offset = offset >>> 0;
    if (!noAssert) {
      checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308);
    }
    ieee754.write(buf, value, offset, littleEndian, 52, 8);
    return offset + 8;
  }

  Buffer.prototype.writeDoubleLE = function writeDoubleLE(value, offset, noAssert) {
    return writeDouble(this, value, offset, true, noAssert);
  };

  Buffer.prototype.writeDoubleBE = function writeDoubleBE(value, offset, noAssert) {
    return writeDouble(this, value, offset, false, noAssert);
  };

  // copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
  Buffer.prototype.copy = function copy(target, targetStart, start, end) {
    if (!start) start = 0;
    if (!end && end !== 0) end = this.length;
    if (targetStart >= target.length) targetStart = target.length;
    if (!targetStart) targetStart = 0;
    if (end > 0 && end < start) end = start;

    // Copy 0 bytes; we're done
    if (end === start) return 0;
    if (target.length === 0 || this.length === 0) return 0;

    // Fatal error conditions
    if (targetStart < 0) {
      throw new RangeError('targetStart out of bounds');
    }
    if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds');
    if (end < 0) throw new RangeError('sourceEnd out of bounds');

    // Are we oob?
    if (end > this.length) end = this.length;
    if (target.length - targetStart < end - start) {
      end = target.length - targetStart + start;
    }

    var len = end - start;
    var i;

    if (this === target && start < targetStart && targetStart < end) {
      // descending copy from end
      for (i = len - 1; i >= 0; --i) {
        target[i + targetStart] = this[i + start];
      }
    } else if (len < 1000) {
      // ascending copy from start
      for (i = 0; i < len; ++i) {
        target[i + targetStart] = this[i + start];
      }
    } else {
      Uint8Array.prototype.set.call(target, this.subarray(start, start + len), targetStart);
    }

    return len;
  };

  // Usage:
  //    buffer.fill(number[, offset[, end]])
  //    buffer.fill(buffer[, offset[, end]])
  //    buffer.fill(string[, offset[, end]][, encoding])
  Buffer.prototype.fill = function fill(val, start, end, encoding) {
    // Handle string cases:
    if (typeof val === 'string') {
      if (typeof start === 'string') {
        encoding = start;
        start = 0;
        end = this.length;
      } else if (typeof end === 'string') {
        encoding = end;
        end = this.length;
      }
      if (val.length === 1) {
        var code = val.charCodeAt(0);
        if (code < 256) {
          val = code;
        }
      }
      if (encoding !== undefined && typeof encoding !== 'string') {
        throw new TypeError('encoding must be a string');
      }
      if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
        throw new TypeError('Unknown encoding: ' + encoding);
      }
    } else if (typeof val === 'number') {
      val = val & 255;
    }

    // Invalid ranges are not set to a default, so can range check early.
    if (start < 0 || this.length < start || this.length < end) {
      throw new RangeError('Out of range index');
    }

    if (end <= start) {
      return this;
    }

    start = start >>> 0;
    end = end === undefined ? this.length : end >>> 0;

    if (!val) val = 0;

    var i;
    if (typeof val === 'number') {
      for (i = start; i < end; ++i) {
        this[i] = val;
      }
    } else {
      var bytes = Buffer.isBuffer(val) ? val : new Buffer(val, encoding);
      var len = bytes.length;
      for (i = 0; i < end - start; ++i) {
        this[i + start] = bytes[i % len];
      }
    }

    return this;
  };

  // HELPER FUNCTIONS
  // ================

  var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g;

  function base64clean(str) {
    // Node strips out invalid characters like \n and \t from the string, base64-js does not
    str = str.trim().replace(INVALID_BASE64_RE, '');
    // Node converts strings with length < 2 to ''
    if (str.length < 2) return '';
    // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
    while (str.length % 4 !== 0) {
      str = str + '=';
    }
    return str;
  }

  function toHex(n) {
    if (n < 16) return '0' + n.toString(16);
    return n.toString(16);
  }

  function utf8ToBytes(string, units) {
    units = units || Infinity;
    var codePoint;
    var length = string.length;
    var leadSurrogate = null;
    var bytes = [];

    for (var i = 0; i < length; ++i) {
      codePoint = string.charCodeAt(i);

      // is surrogate component
      if (codePoint > 0xD7FF && codePoint < 0xE000) {
        // last char was a lead
        if (!leadSurrogate) {
          // no lead yet
          if (codePoint > 0xDBFF) {
            // unexpected trail
            if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
            continue;
          } else if (i + 1 === length) {
            // unpaired lead
            if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
            continue;
          }

          // valid lead
          leadSurrogate = codePoint;

          continue;
        }

        // 2 leads in a row
        if (codePoint < 0xDC00) {
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
          leadSurrogate = codePoint;
          continue;
        }

        // valid surrogate pair
        codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000;
      } else if (leadSurrogate) {
        // valid bmp char, but last char was a lead
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
      }

      leadSurrogate = null;

      // encode utf8
      if (codePoint < 0x80) {
        if ((units -= 1) < 0) break;
        bytes.push(codePoint);
      } else if (codePoint < 0x800) {
        if ((units -= 2) < 0) break;
        bytes.push(codePoint >> 0x6 | 0xC0, codePoint & 0x3F | 0x80);
      } else if (codePoint < 0x10000) {
        if ((units -= 3) < 0) break;
        bytes.push(codePoint >> 0xC | 0xE0, codePoint >> 0x6 & 0x3F | 0x80, codePoint & 0x3F | 0x80);
      } else if (codePoint < 0x110000) {
        if ((units -= 4) < 0) break;
        bytes.push(codePoint >> 0x12 | 0xF0, codePoint >> 0xC & 0x3F | 0x80, codePoint >> 0x6 & 0x3F | 0x80, codePoint & 0x3F | 0x80);
      } else {
        throw new Error('Invalid code point');
      }
    }

    return bytes;
  }

  function asciiToBytes(str) {
    var byteArray = [];
    for (var i = 0; i < str.length; ++i) {
      // Node's code seems to be doing this and not & 0x7F..
      byteArray.push(str.charCodeAt(i) & 0xFF);
    }
    return byteArray;
  }

  function utf16leToBytes(str, units) {
    var c, hi, lo;
    var byteArray = [];
    for (var i = 0; i < str.length; ++i) {
      if ((units -= 2) < 0) break;

      c = str.charCodeAt(i);
      hi = c >> 8;
      lo = c % 256;
      byteArray.push(lo);
      byteArray.push(hi);
    }

    return byteArray;
  }

  function base64ToBytes(str) {
    return base64.toByteArray(base64clean(str));
  }

  function blitBuffer(src, dst, offset, length) {
    for (var i = 0; i < length; ++i) {
      if (i + offset >= dst.length || i >= src.length) break;
      dst[i + offset] = src[i];
    }
    return i;
  }

  // Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
  function isArrayBufferView(obj) {
    return typeof ArrayBuffer.isView === 'function' && ArrayBuffer.isView(obj);
  }

  function numberIsNaN(obj) {
    return obj !== obj; // eslint-disable-line no-self-compare
  }
});
$__System.registerDynamic('1b', ['49'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = $__require('49').Buffer;
});
$__System.registerDynamic("4a", ["1f", "46", "1b"], true, function ($__require, exports, module) {
  "use strict";

  var Buffer = $__require("1b");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _trimRight = $__require("46");

  var _trimRight2 = _interopRequireDefault(_trimRight);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var SPACES_RE = /^[ \t]+$/;

  var Buffer = function () {
    function Buffer(map) {
      (0, _classCallCheck3.default)(this, Buffer);
      this._map = null;
      this._buf = [];
      this._last = "";
      this._queue = [];
      this._position = {
        line: 1,
        column: 0
      };
      this._sourcePosition = {
        identifierName: null,
        line: null,
        column: null,
        filename: null
      };

      this._map = map;
    }

    Buffer.prototype.get = function get() {
      this._flush();

      var map = this._map;
      var result = {
        code: (0, _trimRight2.default)(this._buf.join("")),
        map: null,
        rawMappings: map && map.getRawMappings()
      };

      if (map) {
        Object.defineProperty(result, "map", {
          configurable: true,
          enumerable: true,
          get: function get() {
            return this.map = map.get();
          },
          set: function set(value) {
            Object.defineProperty(this, "map", { value: value, writable: true });
          }
        });
      }

      return result;
    };

    Buffer.prototype.append = function append(str) {
      this._flush();
      var _sourcePosition = this._sourcePosition,
          line = _sourcePosition.line,
          column = _sourcePosition.column,
          filename = _sourcePosition.filename,
          identifierName = _sourcePosition.identifierName;

      this._append(str, line, column, identifierName, filename);
    };

    Buffer.prototype.queue = function queue(str) {
      if (str === "\n") while (this._queue.length > 0 && SPACES_RE.test(this._queue[0][0])) {
        this._queue.shift();
      }var _sourcePosition2 = this._sourcePosition,
          line = _sourcePosition2.line,
          column = _sourcePosition2.column,
          filename = _sourcePosition2.filename,
          identifierName = _sourcePosition2.identifierName;

      this._queue.unshift([str, line, column, identifierName, filename]);
    };

    Buffer.prototype._flush = function _flush() {
      var item = void 0;
      while (item = this._queue.pop()) {
        this._append.apply(this, item);
      }
    };

    Buffer.prototype._append = function _append(str, line, column, identifierName, filename) {
      if (this._map && str[0] !== "\n") {
        this._map.mark(this._position.line, this._position.column, line, column, identifierName, filename);
      }

      this._buf.push(str);
      this._last = str[str.length - 1];

      for (var i = 0; i < str.length; i++) {
        if (str[i] === "\n") {
          this._position.line++;
          this._position.column = 0;
        } else {
          this._position.column++;
        }
      }
    };

    Buffer.prototype.removeTrailingNewline = function removeTrailingNewline() {
      if (this._queue.length > 0 && this._queue[0][0] === "\n") this._queue.shift();
    };

    Buffer.prototype.removeLastSemicolon = function removeLastSemicolon() {
      if (this._queue.length > 0 && this._queue[0][0] === ";") this._queue.shift();
    };

    Buffer.prototype.endsWith = function endsWith(suffix) {
      if (suffix.length === 1) {
        var last = void 0;
        if (this._queue.length > 0) {
          var str = this._queue[0][0];
          last = str[str.length - 1];
        } else {
          last = this._last;
        }

        return last === suffix;
      }

      var end = this._last + this._queue.reduce(function (acc, item) {
        return item[0] + acc;
      }, "");
      if (suffix.length <= end.length) {
        return end.slice(-suffix.length) === suffix;
      }

      return false;
    };

    Buffer.prototype.hasContent = function hasContent() {
      return this._queue.length > 0 || !!this._last;
    };

    Buffer.prototype.source = function source(prop, loc) {
      if (prop && !loc) return;

      var pos = loc ? loc[prop] : null;

      this._sourcePosition.identifierName = loc && loc.identifierName || null;
      this._sourcePosition.line = pos ? pos.line : null;
      this._sourcePosition.column = pos ? pos.column : null;
      this._sourcePosition.filename = loc && loc.filename || null;
    };

    Buffer.prototype.withSource = function withSource(prop, loc, cb) {
      if (!this._map) return cb();

      var originalLine = this._sourcePosition.line;
      var originalColumn = this._sourcePosition.column;
      var originalFilename = this._sourcePosition.filename;
      var originalIdentifierName = this._sourcePosition.identifierName;

      this.source(prop, loc);

      cb();

      this._sourcePosition.line = originalLine;
      this._sourcePosition.column = originalColumn;
      this._sourcePosition.filename = originalFilename;
      this._sourcePosition.identifierName = originalIdentifierName;
    };

    Buffer.prototype.getCurrentColumn = function getCurrentColumn() {
      var extra = this._queue.reduce(function (acc, item) {
        return item[0] + acc;
      }, "");
      var lastIndex = extra.lastIndexOf("\n");

      return lastIndex === -1 ? this._position.column + extra.length : extra.length - 1 - lastIndex;
    };

    Buffer.prototype.getCurrentLine = function getCurrentLine() {
      var extra = this._queue.reduce(function (acc, item) {
        return item[0] + acc;
      }, "");

      var count = 0;
      for (var i = 0; i < extra.length; i++) {
        if (extra[i] === "\n") count++;
      }

      return this._position.line + count;
    };

    return Buffer;
  }();

  exports.default = Buffer;
  module.exports = exports["default"];
});
$__System.registerDynamic("4b", ["1f"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var Whitespace = function () {
    function Whitespace(tokens) {
      (0, _classCallCheck3.default)(this, Whitespace);

      this.tokens = tokens;
      this.used = {};
    }

    Whitespace.prototype.getNewlinesBefore = function getNewlinesBefore(node) {
      var startToken = void 0;
      var endToken = void 0;
      var tokens = this.tokens;

      var index = this._findToken(function (token) {
        return token.start - node.start;
      }, 0, tokens.length);
      if (index >= 0) {
        while (index && node.start === tokens[index - 1].start) {
          --index;
        }startToken = tokens[index - 1];
        endToken = tokens[index];
      }

      return this._getNewlinesBetween(startToken, endToken);
    };

    Whitespace.prototype.getNewlinesAfter = function getNewlinesAfter(node) {
      var startToken = void 0;
      var endToken = void 0;
      var tokens = this.tokens;

      var index = this._findToken(function (token) {
        return token.end - node.end;
      }, 0, tokens.length);
      if (index >= 0) {
        while (index && node.end === tokens[index - 1].end) {
          --index;
        }startToken = tokens[index];
        endToken = tokens[index + 1];
        if (endToken.type.label === ",") endToken = tokens[index + 2];
      }

      if (endToken && endToken.type.label === "eof") {
        return 1;
      } else {
        return this._getNewlinesBetween(startToken, endToken);
      }
    };

    Whitespace.prototype._getNewlinesBetween = function _getNewlinesBetween(startToken, endToken) {
      if (!endToken || !endToken.loc) return 0;

      var start = startToken ? startToken.loc.end.line : 1;
      var end = endToken.loc.start.line;
      var lines = 0;

      for (var line = start; line < end; line++) {
        if (typeof this.used[line] === "undefined") {
          this.used[line] = true;
          lines++;
        }
      }

      return lines;
    };

    Whitespace.prototype._findToken = function _findToken(test, start, end) {
      if (start >= end) return -1;
      var middle = start + end >>> 1;
      var match = test(this.tokens[middle]);
      if (match < 0) {
        return this._findToken(test, middle + 1, end);
      } else if (match > 0) {
        return this._findToken(test, start, middle);
      } else if (match === 0) {
        return middle;
      }
      return -1;
    };

    return Whitespace;
  }();

  exports.default = Whitespace;
  module.exports = exports["default"];
});
$__System.registerDynamic("4c", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.TaggedTemplateExpression = TaggedTemplateExpression;
  exports.TemplateElement = TemplateElement;
  exports.TemplateLiteral = TemplateLiteral;
  function TaggedTemplateExpression(node) {
    this.print(node.tag, node);
    this.print(node.quasi, node);
  }

  function TemplateElement(node, parent) {
    var isFirst = parent.quasis[0] === node;
    var isLast = parent.quasis[parent.quasis.length - 1] === node;

    var value = (isFirst ? "`" : "}") + node.value.raw + (isLast ? "`" : "${");

    this.token(value);
  }

  function TemplateLiteral(node) {
    var quasis = node.quasis;

    for (var i = 0; i < quasis.length; i++) {
      this.print(quasis[i], node);

      if (i + 1 < quasis.length) {
        this.print(node.expressions[i], node);
      }
    }
  }
});
$__System.registerDynamic('4d', ['4e', '3d', '4f', '50'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var arrayMap = $__require('4e'),
      baseIteratee = $__require('3d'),
      baseMap = $__require('4f'),
      isArray = $__require('50');

  /**
   * Creates an array of values by running each element in `collection` thru
   * `iteratee`. The iteratee is invoked with three arguments:
   * (value, index|key, collection).
   *
   * Many lodash methods are guarded to work as iteratees for methods like
   * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
   *
   * The guarded methods are:
   * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
   * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
   * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
   * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Collection
   * @param {Array|Object} collection The collection to iterate over.
   * @param {Function} [iteratee=_.identity] The function invoked per iteration.
   * @returns {Array} Returns the new mapped array.
   * @example
   *
   * function square(n) {
   *   return n * n;
   * }
   *
   * _.map([4, 8], square);
   * // => [16, 64]
   *
   * _.map({ 'a': 4, 'b': 8 }, square);
   * // => [16, 64] (iteration order is not guaranteed)
   *
   * var users = [
   *   { 'user': 'barney' },
   *   { 'user': 'fred' }
   * ];
   *
   * // The `_.property` iteratee shorthand.
   * _.map(users, 'user');
   * // => ['barney', 'fred']
   */
  function map(collection, iteratee) {
    var func = isArray(collection) ? arrayMap : baseMap;
    return func(collection, baseIteratee(iteratee, 3));
  }

  module.exports = map;
});
$__System.registerDynamic("51", ["4d", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _map = $__require("4d");

  var _map2 = _interopRequireDefault(_map);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function crawl(node) {
    var state = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    if (t.isMemberExpression(node)) {
      crawl(node.object, state);
      if (node.computed) crawl(node.property, state);
    } else if (t.isBinary(node) || t.isAssignmentExpression(node)) {
      crawl(node.left, state);
      crawl(node.right, state);
    } else if (t.isCallExpression(node)) {
      state.hasCall = true;
      crawl(node.callee, state);
    } else if (t.isFunction(node)) {
      state.hasFunction = true;
    } else if (t.isIdentifier(node)) {
      state.hasHelper = state.hasHelper || isHelper(node.callee);
    }

    return state;
  }

  function isHelper(node) {
    if (t.isMemberExpression(node)) {
      return isHelper(node.object) || isHelper(node.property);
    } else if (t.isIdentifier(node)) {
      return node.name === "require" || node.name[0] === "_";
    } else if (t.isCallExpression(node)) {
      return isHelper(node.callee);
    } else if (t.isBinary(node) || t.isAssignmentExpression(node)) {
      return t.isIdentifier(node.left) && isHelper(node.left) || isHelper(node.right);
    } else {
      return false;
    }
  }

  function isType(node) {
    return t.isLiteral(node) || t.isObjectExpression(node) || t.isArrayExpression(node) || t.isIdentifier(node) || t.isMemberExpression(node);
  }

  exports.nodes = {
    AssignmentExpression: function AssignmentExpression(node) {
      var state = crawl(node.right);
      if (state.hasCall && state.hasHelper || state.hasFunction) {
        return {
          before: state.hasFunction,
          after: true
        };
      }
    },
    SwitchCase: function SwitchCase(node, parent) {
      return {
        before: node.consequent.length || parent.cases[0] === node
      };
    },
    LogicalExpression: function LogicalExpression(node) {
      if (t.isFunction(node.left) || t.isFunction(node.right)) {
        return {
          after: true
        };
      }
    },
    Literal: function Literal(node) {
      if (node.value === "use strict") {
        return {
          after: true
        };
      }
    },
    CallExpression: function CallExpression(node) {
      if (t.isFunction(node.callee) || isHelper(node)) {
        return {
          before: true,
          after: true
        };
      }
    },
    VariableDeclaration: function VariableDeclaration(node) {
      for (var i = 0; i < node.declarations.length; i++) {
        var declar = node.declarations[i];

        var enabled = isHelper(declar.id) && !isType(declar.init);
        if (!enabled) {
          var state = crawl(declar.init);
          enabled = isHelper(declar.init) && state.hasCall || state.hasFunction;
        }

        if (enabled) {
          return {
            before: true,
            after: true
          };
        }
      }
    },
    IfStatement: function IfStatement(node) {
      if (t.isBlockStatement(node.consequent)) {
        return {
          before: true,
          after: true
        };
      }
    }
  };

  exports.nodes.ObjectProperty = exports.nodes.ObjectTypeProperty = exports.nodes.ObjectMethod = exports.nodes.SpreadProperty = function (node, parent) {
    if (parent.properties[0] === node) {
      return {
        before: true
      };
    }
  };

  exports.list = {
    VariableDeclaration: function VariableDeclaration(node) {
      return (0, _map2.default)(node.declarations, "init");
    },
    ArrayExpression: function ArrayExpression(node) {
      return node.elements;
    },
    ObjectExpression: function ObjectExpression(node) {
      return node.properties;
    }
  };

  [["Function", true], ["Class", true], ["Loop", true], ["LabeledStatement", true], ["SwitchStatement", true], ["TryStatement", true]].forEach(function (_ref) {
    var type = _ref[0],
        amounts = _ref[1];

    if (typeof amounts === "boolean") {
      amounts = { after: amounts, before: amounts };
    }
    [type].concat(t.FLIPPED_ALIAS_KEYS[type] || []).forEach(function (type) {
      exports.nodes[type] = function () {
        return amounts;
      };
    });
  });
});
$__System.registerDynamic("52", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.AwaitExpression = exports.FunctionTypeAnnotation = undefined;
  exports.NullableTypeAnnotation = NullableTypeAnnotation;
  exports.UpdateExpression = UpdateExpression;
  exports.ObjectExpression = ObjectExpression;
  exports.DoExpression = DoExpression;
  exports.Binary = Binary;
  exports.BinaryExpression = BinaryExpression;
  exports.SequenceExpression = SequenceExpression;
  exports.YieldExpression = YieldExpression;
  exports.ClassExpression = ClassExpression;
  exports.UnaryLike = UnaryLike;
  exports.FunctionExpression = FunctionExpression;
  exports.ArrowFunctionExpression = ArrowFunctionExpression;
  exports.ConditionalExpression = ConditionalExpression;
  exports.AssignmentExpression = AssignmentExpression;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  var PRECEDENCE = {
    "||": 0,
    "&&": 1,
    "|": 2,
    "^": 3,
    "&": 4,
    "==": 5,
    "===": 5,
    "!=": 5,
    "!==": 5,
    "<": 6,
    ">": 6,
    "<=": 6,
    ">=": 6,
    in: 6,
    instanceof: 6,
    ">>": 7,
    "<<": 7,
    ">>>": 7,
    "+": 8,
    "-": 8,
    "*": 9,
    "/": 9,
    "%": 9,
    "**": 10
  };

  function NullableTypeAnnotation(node, parent) {
    return t.isArrayTypeAnnotation(parent);
  }

  exports.FunctionTypeAnnotation = NullableTypeAnnotation;
  function UpdateExpression(node, parent) {
    return t.isMemberExpression(parent) && parent.object === node;
  }

  function ObjectExpression(node, parent, printStack) {
    return isFirstInStatement(printStack, { considerArrow: true });
  }

  function DoExpression(node, parent, printStack) {
    return isFirstInStatement(printStack);
  }

  function Binary(node, parent) {
    if ((t.isCallExpression(parent) || t.isNewExpression(parent)) && parent.callee === node || t.isUnaryLike(parent) || t.isMemberExpression(parent) && parent.object === node || t.isAwaitExpression(parent)) {
      return true;
    }

    if (t.isBinary(parent)) {
      var parentOp = parent.operator;
      var parentPos = PRECEDENCE[parentOp];

      var nodeOp = node.operator;
      var nodePos = PRECEDENCE[nodeOp];

      if (parentPos === nodePos && parent.right === node && !t.isLogicalExpression(parent) || parentPos > nodePos) {
        return true;
      }
    }

    return false;
  }

  function BinaryExpression(node, parent) {
    return node.operator === "in" && (t.isVariableDeclarator(parent) || t.isFor(parent));
  }

  function SequenceExpression(node, parent) {

    if (t.isForStatement(parent) || t.isThrowStatement(parent) || t.isReturnStatement(parent) || t.isIfStatement(parent) && parent.test === node || t.isWhileStatement(parent) && parent.test === node || t.isForInStatement(parent) && parent.right === node || t.isSwitchStatement(parent) && parent.discriminant === node || t.isExpressionStatement(parent) && parent.expression === node) {
      return false;
    }

    return true;
  }

  function YieldExpression(node, parent) {
    return t.isBinary(parent) || t.isUnaryLike(parent) || t.isCallExpression(parent) || t.isMemberExpression(parent) || t.isNewExpression(parent) || t.isConditionalExpression(parent) && node === parent.test;
  }

  exports.AwaitExpression = YieldExpression;
  function ClassExpression(node, parent, printStack) {
    return isFirstInStatement(printStack, { considerDefaultExports: true });
  }

  function UnaryLike(node, parent) {
    return t.isMemberExpression(parent, { object: node }) || t.isCallExpression(parent, { callee: node }) || t.isNewExpression(parent, { callee: node });
  }

  function FunctionExpression(node, parent, printStack) {
    return isFirstInStatement(printStack, { considerDefaultExports: true });
  }

  function ArrowFunctionExpression(node, parent) {
    if (t.isExportDeclaration(parent) || t.isBinaryExpression(parent) || t.isLogicalExpression(parent) || t.isUnaryExpression(parent) || t.isTaggedTemplateExpression(parent)) {
      return true;
    }

    return UnaryLike(node, parent);
  }

  function ConditionalExpression(node, parent) {
    if (t.isUnaryLike(parent) || t.isBinary(parent) || t.isConditionalExpression(parent, { test: node }) || t.isAwaitExpression(parent)) {
      return true;
    }

    return UnaryLike(node, parent);
  }

  function AssignmentExpression(node) {
    if (t.isObjectPattern(node.left)) {
      return true;
    } else {
      return ConditionalExpression.apply(undefined, arguments);
    }
  }

  function isFirstInStatement(printStack) {
    var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
        _ref$considerArrow = _ref.considerArrow,
        considerArrow = _ref$considerArrow === undefined ? false : _ref$considerArrow,
        _ref$considerDefaultE = _ref.considerDefaultExports,
        considerDefaultExports = _ref$considerDefaultE === undefined ? false : _ref$considerDefaultE;

    var i = printStack.length - 1;
    var node = printStack[i];
    i--;
    var parent = printStack[i];
    while (i > 0) {
      if (t.isExpressionStatement(parent, { expression: node }) || t.isTaggedTemplateExpression(parent) || considerDefaultExports && t.isExportDefaultDeclaration(parent, { declaration: node }) || considerArrow && t.isArrowFunctionExpression(parent, { body: node })) {
        return true;
      }

      if (t.isCallExpression(parent, { callee: node }) || t.isSequenceExpression(parent) && parent.expressions[0] === node || t.isMemberExpression(parent, { object: node }) || t.isConditional(parent, { test: node }) || t.isBinary(parent, { left: node }) || t.isAssignmentExpression(parent, { left: node })) {
        node = parent;
        i--;
        parent = printStack[i];
      } else {
        return false;
      }
    }

    return false;
  }
});
$__System.registerDynamic("53", ["17", "15", "51", "52", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _keys = $__require("15");

  var _keys2 = _interopRequireDefault(_keys);

  exports.needsWhitespace = needsWhitespace;
  exports.needsWhitespaceBefore = needsWhitespaceBefore;
  exports.needsWhitespaceAfter = needsWhitespaceAfter;
  exports.needsParens = needsParens;

  var _whitespace = $__require("51");

  var _whitespace2 = _interopRequireDefault(_whitespace);

  var _parentheses = $__require("52");

  var parens = _interopRequireWildcard(_parentheses);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function expandAliases(obj) {
    var newObj = {};

    function add(type, func) {
      var fn = newObj[type];
      newObj[type] = fn ? function (node, parent, stack) {
        var result = fn(node, parent, stack);

        return result == null ? func(node, parent, stack) : result;
      } : func;
    }

    for (var _iterator = (0, _keys2.default)(obj), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var type = _ref;

      var aliases = t.FLIPPED_ALIAS_KEYS[type];
      if (aliases) {
        for (var _iterator2 = aliases, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
          var _ref2;

          if (_isArray2) {
            if (_i2 >= _iterator2.length) break;
            _ref2 = _iterator2[_i2++];
          } else {
            _i2 = _iterator2.next();
            if (_i2.done) break;
            _ref2 = _i2.value;
          }

          var alias = _ref2;

          add(alias, obj[type]);
        }
      } else {
        add(type, obj[type]);
      }
    }

    return newObj;
  }

  var expandedParens = expandAliases(parens);
  var expandedWhitespaceNodes = expandAliases(_whitespace2.default.nodes);
  var expandedWhitespaceList = expandAliases(_whitespace2.default.list);

  function find(obj, node, parent, printStack) {
    var fn = obj[node.type];
    return fn ? fn(node, parent, printStack) : null;
  }

  function isOrHasCallExpression(node) {
    if (t.isCallExpression(node)) {
      return true;
    }

    if (t.isMemberExpression(node)) {
      return isOrHasCallExpression(node.object) || !node.computed && isOrHasCallExpression(node.property);
    } else {
      return false;
    }
  }

  function needsWhitespace(node, parent, type) {
    if (!node) return 0;

    if (t.isExpressionStatement(node)) {
      node = node.expression;
    }

    var linesInfo = find(expandedWhitespaceNodes, node, parent);

    if (!linesInfo) {
      var items = find(expandedWhitespaceList, node, parent);
      if (items) {
        for (var i = 0; i < items.length; i++) {
          linesInfo = needsWhitespace(items[i], node, type);
          if (linesInfo) break;
        }
      }
    }

    return linesInfo && linesInfo[type] || 0;
  }

  function needsWhitespaceBefore(node, parent) {
    return needsWhitespace(node, parent, "before");
  }

  function needsWhitespaceAfter(node, parent) {
    return needsWhitespace(node, parent, "after");
  }

  function needsParens(node, parent, printStack) {
    if (!parent) return false;

    if (t.isNewExpression(parent) && parent.callee === node) {
      if (isOrHasCallExpression(node)) return true;
    }

    return find(expandedParens, node, parent, printStack);
  }
});
$__System.registerDynamic("54", ["11", "53"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.LogicalExpression = exports.BinaryExpression = exports.AwaitExpression = exports.YieldExpression = undefined;
  exports.UnaryExpression = UnaryExpression;
  exports.DoExpression = DoExpression;
  exports.ParenthesizedExpression = ParenthesizedExpression;
  exports.UpdateExpression = UpdateExpression;
  exports.ConditionalExpression = ConditionalExpression;
  exports.NewExpression = NewExpression;
  exports.SequenceExpression = SequenceExpression;
  exports.ThisExpression = ThisExpression;
  exports.Super = Super;
  exports.Decorator = Decorator;
  exports.CallExpression = CallExpression;
  exports.Import = Import;
  exports.EmptyStatement = EmptyStatement;
  exports.ExpressionStatement = ExpressionStatement;
  exports.AssignmentPattern = AssignmentPattern;
  exports.AssignmentExpression = AssignmentExpression;
  exports.BindExpression = BindExpression;
  exports.MemberExpression = MemberExpression;
  exports.MetaProperty = MetaProperty;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _node = $__require("53");

  var n = _interopRequireWildcard(_node);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function UnaryExpression(node) {
    if (node.operator === "void" || node.operator === "delete" || node.operator === "typeof") {
      this.word(node.operator);
      this.space();
    } else {
      this.token(node.operator);
    }

    this.print(node.argument, node);
  }

  function DoExpression(node) {
    this.word("do");
    this.space();
    this.print(node.body, node);
  }

  function ParenthesizedExpression(node) {
    this.token("(");
    this.print(node.expression, node);
    this.token(")");
  }

  function UpdateExpression(node) {
    if (node.prefix) {
      this.token(node.operator);
      this.print(node.argument, node);
    } else {
      this.print(node.argument, node);
      this.token(node.operator);
    }
  }

  function ConditionalExpression(node) {
    this.print(node.test, node);
    this.space();
    this.token("?");
    this.space();
    this.print(node.consequent, node);
    this.space();
    this.token(":");
    this.space();
    this.print(node.alternate, node);
  }

  function NewExpression(node, parent) {
    this.word("new");
    this.space();
    this.print(node.callee, node);
    if (node.arguments.length === 0 && this.format.minified && !t.isCallExpression(parent, { callee: node }) && !t.isMemberExpression(parent) && !t.isNewExpression(parent)) return;

    this.token("(");
    this.printList(node.arguments, node);
    this.token(")");
  }

  function SequenceExpression(node) {
    this.printList(node.expressions, node);
  }

  function ThisExpression() {
    this.word("this");
  }

  function Super() {
    this.word("super");
  }

  function Decorator(node) {
    this.token("@");
    this.print(node.expression, node);
    this.newline();
  }

  function commaSeparatorNewline() {
    this.token(",");
    this.newline();

    if (!this.endsWith("\n")) this.space();
  }

  function CallExpression(node) {
    this.print(node.callee, node);

    this.token("(");

    var isPrettyCall = node._prettyCall;

    var separator = void 0;
    if (isPrettyCall) {
      separator = commaSeparatorNewline;
      this.newline();
      this.indent();
    }

    this.printList(node.arguments, node, { separator: separator });

    if (isPrettyCall) {
      this.newline();
      this.dedent();
    }

    this.token(")");
  }

  function Import() {
    this.word("import");
  }

  function buildYieldAwait(keyword) {
    return function (node) {
      this.word(keyword);

      if (node.delegate) {
        this.token("*");
      }

      if (node.argument) {
        this.space();
        var terminatorState = this.startTerminatorless();
        this.print(node.argument, node);
        this.endTerminatorless(terminatorState);
      }
    };
  }

  var YieldExpression = exports.YieldExpression = buildYieldAwait("yield");
  var AwaitExpression = exports.AwaitExpression = buildYieldAwait("await");

  function EmptyStatement() {
    this.semicolon(true);
  }

  function ExpressionStatement(node) {
    this.print(node.expression, node);
    this.semicolon();
  }

  function AssignmentPattern(node) {
    this.print(node.left, node);
    if (node.left.optional) this.token("?");
    this.print(node.left.typeAnnotation, node);
    this.space();
    this.token("=");
    this.space();
    this.print(node.right, node);
  }

  function AssignmentExpression(node, parent) {
    var parens = this.inForStatementInitCounter && node.operator === "in" && !n.needsParens(node, parent);

    if (parens) {
      this.token("(");
    }

    this.print(node.left, node);

    this.space();
    if (node.operator === "in" || node.operator === "instanceof") {
      this.word(node.operator);
    } else {
      this.token(node.operator);
    }
    this.space();

    this.print(node.right, node);

    if (parens) {
      this.token(")");
    }
  }

  function BindExpression(node) {
    this.print(node.object, node);
    this.token("::");
    this.print(node.callee, node);
  }

  exports.BinaryExpression = AssignmentExpression;
  exports.LogicalExpression = AssignmentExpression;
  function MemberExpression(node) {
    this.print(node.object, node);

    if (!node.computed && t.isMemberExpression(node.property)) {
      throw new TypeError("Got a MemberExpression for MemberExpression property");
    }

    var computed = node.computed;
    if (t.isLiteral(node.property) && typeof node.property.value === "number") {
      computed = true;
    }

    if (computed) {
      this.token("[");
      this.print(node.property, node);
      this.token("]");
    } else {
      this.token(".");
      this.print(node.property, node);
    }
  }

  function MetaProperty(node) {
    this.print(node.meta, node);
    this.token(".");
    this.print(node.property, node);
  }
});
$__System.registerDynamic("55", ["17", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.ThrowStatement = exports.BreakStatement = exports.ReturnStatement = exports.ContinueStatement = exports.ForAwaitStatement = exports.ForOfStatement = exports.ForInStatement = undefined;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.WithStatement = WithStatement;
  exports.IfStatement = IfStatement;
  exports.ForStatement = ForStatement;
  exports.WhileStatement = WhileStatement;
  exports.DoWhileStatement = DoWhileStatement;
  exports.LabeledStatement = LabeledStatement;
  exports.TryStatement = TryStatement;
  exports.CatchClause = CatchClause;
  exports.SwitchStatement = SwitchStatement;
  exports.SwitchCase = SwitchCase;
  exports.DebuggerStatement = DebuggerStatement;
  exports.VariableDeclaration = VariableDeclaration;
  exports.VariableDeclarator = VariableDeclarator;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function WithStatement(node) {
    this.word("with");
    this.space();
    this.token("(");
    this.print(node.object, node);
    this.token(")");
    this.printBlock(node);
  }

  function IfStatement(node) {
    this.word("if");
    this.space();
    this.token("(");
    this.print(node.test, node);
    this.token(")");
    this.space();

    var needsBlock = node.alternate && t.isIfStatement(getLastStatement(node.consequent));
    if (needsBlock) {
      this.token("{");
      this.newline();
      this.indent();
    }

    this.printAndIndentOnComments(node.consequent, node);

    if (needsBlock) {
      this.dedent();
      this.newline();
      this.token("}");
    }

    if (node.alternate) {
      if (this.endsWith("}")) this.space();
      this.word("else");
      this.space();
      this.printAndIndentOnComments(node.alternate, node);
    }
  }

  function getLastStatement(statement) {
    if (!t.isStatement(statement.body)) return statement;
    return getLastStatement(statement.body);
  }

  function ForStatement(node) {
    this.word("for");
    this.space();
    this.token("(");

    this.inForStatementInitCounter++;
    this.print(node.init, node);
    this.inForStatementInitCounter--;
    this.token(";");

    if (node.test) {
      this.space();
      this.print(node.test, node);
    }
    this.token(";");

    if (node.update) {
      this.space();
      this.print(node.update, node);
    }

    this.token(")");
    this.printBlock(node);
  }

  function WhileStatement(node) {
    this.word("while");
    this.space();
    this.token("(");
    this.print(node.test, node);
    this.token(")");
    this.printBlock(node);
  }

  var buildForXStatement = function buildForXStatement(op) {
    return function (node) {
      this.word("for");
      this.space();
      if (op === "await") {
        this.word("await");
        this.space();
      }
      this.token("(");

      this.print(node.left, node);
      this.space();
      this.word(op === "await" ? "of" : op);
      this.space();
      this.print(node.right, node);
      this.token(")");
      this.printBlock(node);
    };
  };

  var ForInStatement = exports.ForInStatement = buildForXStatement("in");
  var ForOfStatement = exports.ForOfStatement = buildForXStatement("of");
  var ForAwaitStatement = exports.ForAwaitStatement = buildForXStatement("await");

  function DoWhileStatement(node) {
    this.word("do");
    this.space();
    this.print(node.body, node);
    this.space();
    this.word("while");
    this.space();
    this.token("(");
    this.print(node.test, node);
    this.token(")");
    this.semicolon();
  }

  function buildLabelStatement(prefix) {
    var key = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "label";

    return function (node) {
      this.word(prefix);

      var label = node[key];
      if (label) {
        this.space();

        var terminatorState = this.startTerminatorless();
        this.print(label, node);
        this.endTerminatorless(terminatorState);
      }

      this.semicolon();
    };
  }

  var ContinueStatement = exports.ContinueStatement = buildLabelStatement("continue");
  var ReturnStatement = exports.ReturnStatement = buildLabelStatement("return", "argument");
  var BreakStatement = exports.BreakStatement = buildLabelStatement("break");
  var ThrowStatement = exports.ThrowStatement = buildLabelStatement("throw", "argument");

  function LabeledStatement(node) {
    this.print(node.label, node);
    this.token(":");
    this.space();
    this.print(node.body, node);
  }

  function TryStatement(node) {
    this.word("try");
    this.space();
    this.print(node.block, node);
    this.space();

    if (node.handlers) {
      this.print(node.handlers[0], node);
    } else {
      this.print(node.handler, node);
    }

    if (node.finalizer) {
      this.space();
      this.word("finally");
      this.space();
      this.print(node.finalizer, node);
    }
  }

  function CatchClause(node) {
    this.word("catch");
    this.space();
    this.token("(");
    this.print(node.param, node);
    this.token(")");
    this.space();
    this.print(node.body, node);
  }

  function SwitchStatement(node) {
    this.word("switch");
    this.space();
    this.token("(");
    this.print(node.discriminant, node);
    this.token(")");
    this.space();
    this.token("{");

    this.printSequence(node.cases, node, {
      indent: true,
      addNewlines: function addNewlines(leading, cas) {
        if (!leading && node.cases[node.cases.length - 1] === cas) return -1;
      }
    });

    this.token("}");
  }

  function SwitchCase(node) {
    if (node.test) {
      this.word("case");
      this.space();
      this.print(node.test, node);
      this.token(":");
    } else {
      this.word("default");
      this.token(":");
    }

    if (node.consequent.length) {
      this.newline();
      this.printSequence(node.consequent, node, { indent: true });
    }
  }

  function DebuggerStatement() {
    this.word("debugger");
    this.semicolon();
  }

  function variableDeclarationIdent() {
    this.token(",");
    this.newline();
    if (this.endsWith("\n")) for (var i = 0; i < 4; i++) {
      this.space(true);
    }
  }

  function constDeclarationIdent() {
    this.token(",");
    this.newline();
    if (this.endsWith("\n")) for (var i = 0; i < 6; i++) {
      this.space(true);
    }
  }

  function VariableDeclaration(node, parent) {
    this.word(node.kind);
    this.space();

    var hasInits = false;

    if (!t.isFor(parent)) {
      for (var _iterator = node.declarations, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var declar = _ref;

        if (declar.init) {
          hasInits = true;
        }
      }
    }

    var separator = void 0;
    if (hasInits) {
      separator = node.kind === "const" ? constDeclarationIdent : variableDeclarationIdent;
    }

    this.printList(node.declarations, node, { separator: separator });

    if (t.isFor(parent)) {
      if (parent.left === node || parent.init === node) return;
    }

    this.semicolon();
  }

  function VariableDeclarator(node) {
    this.print(node.id, node);
    this.print(node.id.typeAnnotation, node);
    if (node.init) {
      this.space();
      this.token("=");
      this.space();
      this.print(node.init, node);
    }
  }
});
$__System.registerDynamic("56", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.ClassDeclaration = ClassDeclaration;
  exports.ClassBody = ClassBody;
  exports.ClassProperty = ClassProperty;
  exports.ClassMethod = ClassMethod;
  function ClassDeclaration(node) {
    this.printJoin(node.decorators, node);
    this.word("class");

    if (node.id) {
      this.space();
      this.print(node.id, node);
    }

    this.print(node.typeParameters, node);

    if (node.superClass) {
      this.space();
      this.word("extends");
      this.space();
      this.print(node.superClass, node);
      this.print(node.superTypeParameters, node);
    }

    if (node.implements) {
      this.space();
      this.word("implements");
      this.space();
      this.printList(node.implements, node);
    }

    this.space();
    this.print(node.body, node);
  }

  exports.ClassExpression = ClassDeclaration;
  function ClassBody(node) {
    this.token("{");
    this.printInnerComments(node);
    if (node.body.length === 0) {
      this.token("}");
    } else {
      this.newline();

      this.indent();
      this.printSequence(node.body, node);
      this.dedent();

      if (!this.endsWith("\n")) this.newline();

      this.rightBrace();
    }
  }

  function ClassProperty(node) {
    this.printJoin(node.decorators, node);

    if (node.static) {
      this.word("static");
      this.space();
    }
    if (node.computed) {
      this.token("[");
      this.print(node.key, node);
      this.token("]");
    } else {
      this._variance(node);
      this.print(node.key, node);
    }
    this.print(node.typeAnnotation, node);
    if (node.value) {
      this.space();
      this.token("=");
      this.space();
      this.print(node.value, node);
    }
    this.semicolon();
  }

  function ClassMethod(node) {
    this.printJoin(node.decorators, node);

    if (node.static) {
      this.word("static");
      this.space();
    }

    if (node.kind === "constructorCall") {
      this.word("call");
      this.space();
    }

    this._method(node);
  }
});
$__System.registerDynamic("57", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.FunctionDeclaration = undefined;
  exports._params = _params;
  exports._method = _method;
  exports.FunctionExpression = FunctionExpression;
  exports.ArrowFunctionExpression = ArrowFunctionExpression;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _params(node) {
    var _this = this;

    this.print(node.typeParameters, node);
    this.token("(");
    this.printList(node.params, node, {
      iterator: function iterator(node) {
        if (node.optional) _this.token("?");
        _this.print(node.typeAnnotation, node);
      }
    });
    this.token(")");

    if (node.returnType) {
      this.print(node.returnType, node);
    }
  }

  function _method(node) {
    var kind = node.kind;
    var key = node.key;

    if (kind === "method" || kind === "init") {
      if (node.generator) {
        this.token("*");
      }
    }

    if (kind === "get" || kind === "set") {
      this.word(kind);
      this.space();
    }

    if (node.async) {
      this.word("async");
      this.space();
    }

    if (node.computed) {
      this.token("[");
      this.print(key, node);
      this.token("]");
    } else {
      this.print(key, node);
    }

    this._params(node);
    this.space();
    this.print(node.body, node);
  }

  function FunctionExpression(node) {
    if (node.async) {
      this.word("async");
      this.space();
    }
    this.word("function");
    if (node.generator) this.token("*");

    if (node.id) {
      this.space();
      this.print(node.id, node);
    } else {
      this.space();
    }

    this._params(node);
    this.space();
    this.print(node.body, node);
  }

  exports.FunctionDeclaration = FunctionExpression;
  function ArrowFunctionExpression(node) {
    if (node.async) {
      this.word("async");
      this.space();
    }

    var firstParam = node.params[0];

    if (node.params.length === 1 && t.isIdentifier(firstParam) && !hasTypes(node, firstParam)) {
      this.print(firstParam, node);
    } else {
      this._params(node);
    }

    this.space();
    this.token("=>");
    this.space();

    this.print(node.body, node);
  }

  function hasTypes(node, param) {
    return node.typeParameters || node.returnType || param.typeAnnotation || param.optional || param.trailingComments;
  }
});
$__System.registerDynamic("58", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.ImportSpecifier = ImportSpecifier;
  exports.ImportDefaultSpecifier = ImportDefaultSpecifier;
  exports.ExportDefaultSpecifier = ExportDefaultSpecifier;
  exports.ExportSpecifier = ExportSpecifier;
  exports.ExportNamespaceSpecifier = ExportNamespaceSpecifier;
  exports.ExportAllDeclaration = ExportAllDeclaration;
  exports.ExportNamedDeclaration = ExportNamedDeclaration;
  exports.ExportDefaultDeclaration = ExportDefaultDeclaration;
  exports.ImportDeclaration = ImportDeclaration;
  exports.ImportNamespaceSpecifier = ImportNamespaceSpecifier;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function ImportSpecifier(node) {
    if (node.importKind === "type" || node.importKind === "typeof") {
      this.word(node.importKind);
      this.space();
    }

    this.print(node.imported, node);
    if (node.local && node.local.name !== node.imported.name) {
      this.space();
      this.word("as");
      this.space();
      this.print(node.local, node);
    }
  }

  function ImportDefaultSpecifier(node) {
    this.print(node.local, node);
  }

  function ExportDefaultSpecifier(node) {
    this.print(node.exported, node);
  }

  function ExportSpecifier(node) {
    this.print(node.local, node);
    if (node.exported && node.local.name !== node.exported.name) {
      this.space();
      this.word("as");
      this.space();
      this.print(node.exported, node);
    }
  }

  function ExportNamespaceSpecifier(node) {
    this.token("*");
    this.space();
    this.word("as");
    this.space();
    this.print(node.exported, node);
  }

  function ExportAllDeclaration(node) {
    this.word("export");
    this.space();
    this.token("*");
    this.space();
    this.word("from");
    this.space();
    this.print(node.source, node);
    this.semicolon();
  }

  function ExportNamedDeclaration() {
    this.word("export");
    this.space();
    ExportDeclaration.apply(this, arguments);
  }

  function ExportDefaultDeclaration() {
    this.word("export");
    this.space();
    this.word("default");
    this.space();
    ExportDeclaration.apply(this, arguments);
  }

  function ExportDeclaration(node) {
    if (node.declaration) {
      var declar = node.declaration;
      this.print(declar, node);
      if (!t.isStatement(declar)) this.semicolon();
    } else {
      if (node.exportKind === "type") {
        this.word("type");
        this.space();
      }

      var specifiers = node.specifiers.slice(0);

      var hasSpecial = false;
      while (true) {
        var first = specifiers[0];
        if (t.isExportDefaultSpecifier(first) || t.isExportNamespaceSpecifier(first)) {
          hasSpecial = true;
          this.print(specifiers.shift(), node);
          if (specifiers.length) {
            this.token(",");
            this.space();
          }
        } else {
          break;
        }
      }

      if (specifiers.length || !specifiers.length && !hasSpecial) {
        this.token("{");
        if (specifiers.length) {
          this.space();
          this.printList(specifiers, node);
          this.space();
        }
        this.token("}");
      }

      if (node.source) {
        this.space();
        this.word("from");
        this.space();
        this.print(node.source, node);
      }

      this.semicolon();
    }
  }

  function ImportDeclaration(node) {
    this.word("import");
    this.space();

    if (node.importKind === "type" || node.importKind === "typeof") {
      this.word(node.importKind);
      this.space();
    }

    var specifiers = node.specifiers.slice(0);
    if (specifiers && specifiers.length) {
      while (true) {
        var first = specifiers[0];
        if (t.isImportDefaultSpecifier(first) || t.isImportNamespaceSpecifier(first)) {
          this.print(specifiers.shift(), node);
          if (specifiers.length) {
            this.token(",");
            this.space();
          }
        } else {
          break;
        }
      }

      if (specifiers.length) {
        this.token("{");
        this.space();
        this.printList(specifiers, node);
        this.space();
        this.token("}");
      }

      this.space();
      this.word("from");
      this.space();
    }

    this.print(node.source, node);
    this.semicolon();
  }

  function ImportNamespaceSpecifier(node) {
    this.token("*");
    this.space();
    this.word("as");
    this.space();
    this.print(node.local, node);
  }
});
$__System.registerDynamic("59", ["5a"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.AnyTypeAnnotation = AnyTypeAnnotation;
  exports.ArrayTypeAnnotation = ArrayTypeAnnotation;
  exports.BooleanTypeAnnotation = BooleanTypeAnnotation;
  exports.BooleanLiteralTypeAnnotation = BooleanLiteralTypeAnnotation;
  exports.NullLiteralTypeAnnotation = NullLiteralTypeAnnotation;
  exports.DeclareClass = DeclareClass;
  exports.DeclareFunction = DeclareFunction;
  exports.DeclareInterface = DeclareInterface;
  exports.DeclareModule = DeclareModule;
  exports.DeclareModuleExports = DeclareModuleExports;
  exports.DeclareTypeAlias = DeclareTypeAlias;
  exports.DeclareVariable = DeclareVariable;
  exports.ExistentialTypeParam = ExistentialTypeParam;
  exports.FunctionTypeAnnotation = FunctionTypeAnnotation;
  exports.FunctionTypeParam = FunctionTypeParam;
  exports.InterfaceExtends = InterfaceExtends;
  exports._interfaceish = _interfaceish;
  exports._variance = _variance;
  exports.InterfaceDeclaration = InterfaceDeclaration;
  exports.IntersectionTypeAnnotation = IntersectionTypeAnnotation;
  exports.MixedTypeAnnotation = MixedTypeAnnotation;
  exports.EmptyTypeAnnotation = EmptyTypeAnnotation;
  exports.NullableTypeAnnotation = NullableTypeAnnotation;

  var _types = $__require("5a");

  Object.defineProperty(exports, "NumericLiteralTypeAnnotation", {
    enumerable: true,
    get: function get() {
      return _types.NumericLiteral;
    }
  });
  Object.defineProperty(exports, "StringLiteralTypeAnnotation", {
    enumerable: true,
    get: function get() {
      return _types.StringLiteral;
    }
  });
  exports.NumberTypeAnnotation = NumberTypeAnnotation;
  exports.StringTypeAnnotation = StringTypeAnnotation;
  exports.ThisTypeAnnotation = ThisTypeAnnotation;
  exports.TupleTypeAnnotation = TupleTypeAnnotation;
  exports.TypeofTypeAnnotation = TypeofTypeAnnotation;
  exports.TypeAlias = TypeAlias;
  exports.TypeAnnotation = TypeAnnotation;
  exports.TypeParameter = TypeParameter;
  exports.TypeParameterInstantiation = TypeParameterInstantiation;
  exports.ObjectTypeAnnotation = ObjectTypeAnnotation;
  exports.ObjectTypeCallProperty = ObjectTypeCallProperty;
  exports.ObjectTypeIndexer = ObjectTypeIndexer;
  exports.ObjectTypeProperty = ObjectTypeProperty;
  exports.ObjectTypeSpreadProperty = ObjectTypeSpreadProperty;
  exports.QualifiedTypeIdentifier = QualifiedTypeIdentifier;
  exports.UnionTypeAnnotation = UnionTypeAnnotation;
  exports.TypeCastExpression = TypeCastExpression;
  exports.VoidTypeAnnotation = VoidTypeAnnotation;
  function AnyTypeAnnotation() {
    this.word("any");
  }

  function ArrayTypeAnnotation(node) {
    this.print(node.elementType, node);
    this.token("[");
    this.token("]");
  }

  function BooleanTypeAnnotation() {
    this.word("boolean");
  }

  function BooleanLiteralTypeAnnotation(node) {
    this.word(node.value ? "true" : "false");
  }

  function NullLiteralTypeAnnotation() {
    this.word("null");
  }

  function DeclareClass(node) {
    this.word("declare");
    this.space();
    this.word("class");
    this.space();
    this._interfaceish(node);
  }

  function DeclareFunction(node) {
    this.word("declare");
    this.space();
    this.word("function");
    this.space();
    this.print(node.id, node);
    this.print(node.id.typeAnnotation.typeAnnotation, node);
    this.semicolon();
  }

  function DeclareInterface(node) {
    this.word("declare");
    this.space();
    this.InterfaceDeclaration(node);
  }

  function DeclareModule(node) {
    this.word("declare");
    this.space();
    this.word("module");
    this.space();
    this.print(node.id, node);
    this.space();
    this.print(node.body, node);
  }

  function DeclareModuleExports(node) {
    this.word("declare");
    this.space();
    this.word("module");
    this.token(".");
    this.word("exports");
    this.print(node.typeAnnotation, node);
  }

  function DeclareTypeAlias(node) {
    this.word("declare");
    this.space();
    this.TypeAlias(node);
  }

  function DeclareVariable(node) {
    this.word("declare");
    this.space();
    this.word("var");
    this.space();
    this.print(node.id, node);
    this.print(node.id.typeAnnotation, node);
    this.semicolon();
  }

  function ExistentialTypeParam() {
    this.token("*");
  }

  function FunctionTypeAnnotation(node, parent) {
    this.print(node.typeParameters, node);
    this.token("(");
    this.printList(node.params, node);

    if (node.rest) {
      if (node.params.length) {
        this.token(",");
        this.space();
      }
      this.token("...");
      this.print(node.rest, node);
    }

    this.token(")");

    if (parent.type === "ObjectTypeCallProperty" || parent.type === "DeclareFunction") {
      this.token(":");
    } else {
      this.space();
      this.token("=>");
    }

    this.space();
    this.print(node.returnType, node);
  }

  function FunctionTypeParam(node) {
    this.print(node.name, node);
    if (node.optional) this.token("?");
    this.token(":");
    this.space();
    this.print(node.typeAnnotation, node);
  }

  function InterfaceExtends(node) {
    this.print(node.id, node);
    this.print(node.typeParameters, node);
  }

  exports.ClassImplements = InterfaceExtends;
  exports.GenericTypeAnnotation = InterfaceExtends;
  function _interfaceish(node) {
    this.print(node.id, node);
    this.print(node.typeParameters, node);
    if (node.extends.length) {
      this.space();
      this.word("extends");
      this.space();
      this.printList(node.extends, node);
    }
    if (node.mixins && node.mixins.length) {
      this.space();
      this.word("mixins");
      this.space();
      this.printList(node.mixins, node);
    }
    this.space();
    this.print(node.body, node);
  }

  function _variance(node) {
    if (node.variance === "plus") {
      this.token("+");
    } else if (node.variance === "minus") {
      this.token("-");
    }
  }

  function InterfaceDeclaration(node) {
    this.word("interface");
    this.space();
    this._interfaceish(node);
  }

  function andSeparator() {
    this.space();
    this.token("&");
    this.space();
  }

  function IntersectionTypeAnnotation(node) {
    this.printJoin(node.types, node, { separator: andSeparator });
  }

  function MixedTypeAnnotation() {
    this.word("mixed");
  }

  function EmptyTypeAnnotation() {
    this.word("empty");
  }

  function NullableTypeAnnotation(node) {
    this.token("?");
    this.print(node.typeAnnotation, node);
  }

  function NumberTypeAnnotation() {
    this.word("number");
  }

  function StringTypeAnnotation() {
    this.word("string");
  }

  function ThisTypeAnnotation() {
    this.word("this");
  }

  function TupleTypeAnnotation(node) {
    this.token("[");
    this.printList(node.types, node);
    this.token("]");
  }

  function TypeofTypeAnnotation(node) {
    this.word("typeof");
    this.space();
    this.print(node.argument, node);
  }

  function TypeAlias(node) {
    this.word("type");
    this.space();
    this.print(node.id, node);
    this.print(node.typeParameters, node);
    this.space();
    this.token("=");
    this.space();
    this.print(node.right, node);
    this.semicolon();
  }

  function TypeAnnotation(node) {
    this.token(":");
    this.space();
    if (node.optional) this.token("?");
    this.print(node.typeAnnotation, node);
  }

  function TypeParameter(node) {
    this._variance(node);

    this.word(node.name);

    if (node.bound) {
      this.print(node.bound, node);
    }

    if (node.default) {
      this.space();
      this.token("=");
      this.space();
      this.print(node.default, node);
    }
  }

  function TypeParameterInstantiation(node) {
    this.token("<");
    this.printList(node.params, node, {});
    this.token(">");
  }

  exports.TypeParameterDeclaration = TypeParameterInstantiation;
  function ObjectTypeAnnotation(node) {
    var _this = this;

    if (node.exact) {
      this.token("{|");
    } else {
      this.token("{");
    }

    var props = node.properties.concat(node.callProperties, node.indexers);

    if (props.length) {
      this.space();

      this.printJoin(props, node, {
        addNewlines: function addNewlines(leading) {
          if (leading && !props[0]) return 1;
        },

        indent: true,
        statement: true,
        iterator: function iterator() {
          if (props.length !== 1) {
            if (_this.format.flowCommaSeparator) {
              _this.token(",");
            } else {
              _this.semicolon();
            }
            _this.space();
          }
        }
      });

      this.space();
    }

    if (node.exact) {
      this.token("|}");
    } else {
      this.token("}");
    }
  }

  function ObjectTypeCallProperty(node) {
    if (node.static) {
      this.word("static");
      this.space();
    }
    this.print(node.value, node);
  }

  function ObjectTypeIndexer(node) {
    if (node.static) {
      this.word("static");
      this.space();
    }
    this._variance(node);
    this.token("[");
    this.print(node.id, node);
    this.token(":");
    this.space();
    this.print(node.key, node);
    this.token("]");
    this.token(":");
    this.space();
    this.print(node.value, node);
  }

  function ObjectTypeProperty(node) {
    if (node.static) {
      this.word("static");
      this.space();
    }
    this._variance(node);
    this.print(node.key, node);
    if (node.optional) this.token("?");
    this.token(":");
    this.space();
    this.print(node.value, node);
  }

  function ObjectTypeSpreadProperty(node) {
    this.token("...");
    this.print(node.argument, node);
  }

  function QualifiedTypeIdentifier(node) {
    this.print(node.qualification, node);
    this.token(".");
    this.print(node.id, node);
  }

  function orSeparator() {
    this.space();
    this.token("|");
    this.space();
  }

  function UnionTypeAnnotation(node) {
    this.printJoin(node.types, node, { separator: orSeparator });
  }

  function TypeCastExpression(node) {
    this.token("(");
    this.print(node.expression, node);
    this.print(node.typeAnnotation, node);
    this.token(")");
  }

  function VoidTypeAnnotation() {
    this.word("void");
  }
});
$__System.registerDynamic('5b', [], true, function ($__require, exports, module) {
	var global = this || self,
	    GLOBAL = global;
	/*! https://mths.be/jsesc v1.3.0 by @mathias */
	;(function (root) {

		// Detect free variables `exports`
		var freeExports = typeof exports == 'object' && exports;

		// Detect free variable `module`
		var freeModule = typeof module == 'object' && module && module.exports == freeExports && module;

		// Detect free variable `global`, from Node.js or Browserified code,
		// and use it as `root`
		var freeGlobal = typeof global == 'object' && global;
		if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
			root = freeGlobal;
		}

		/*--------------------------------------------------------------------------*/

		var object = {};
		var hasOwnProperty = object.hasOwnProperty;
		var forOwn = function (object, callback) {
			var key;
			for (key in object) {
				if (hasOwnProperty.call(object, key)) {
					callback(key, object[key]);
				}
			}
		};

		var extend = function (destination, source) {
			if (!source) {
				return destination;
			}
			forOwn(source, function (key, value) {
				destination[key] = value;
			});
			return destination;
		};

		var forEach = function (array, callback) {
			var length = array.length;
			var index = -1;
			while (++index < length) {
				callback(array[index]);
			}
		};

		var toString = object.toString;
		var isArray = function (value) {
			return toString.call(value) == '[object Array]';
		};
		var isObject = function (value) {
			// This is a very simple check, but it’s good enough for what we need.
			return toString.call(value) == '[object Object]';
		};
		var isString = function (value) {
			return typeof value == 'string' || toString.call(value) == '[object String]';
		};
		var isNumber = function (value) {
			return typeof value == 'number' || toString.call(value) == '[object Number]';
		};
		var isFunction = function (value) {
			// In a perfect world, the `typeof` check would be sufficient. However,
			// in Chrome 1–12, `typeof /x/ == 'object'`, and in IE 6–8
			// `typeof alert == 'object'` and similar for other host objects.
			return typeof value == 'function' || toString.call(value) == '[object Function]';
		};
		var isMap = function (value) {
			return toString.call(value) == '[object Map]';
		};
		var isSet = function (value) {
			return toString.call(value) == '[object Set]';
		};

		/*--------------------------------------------------------------------------*/

		// https://mathiasbynens.be/notes/javascript-escapes#single
		var singleEscapes = {
			'"': '\\"',
			'\'': '\\\'',
			'\\': '\\\\',
			'\b': '\\b',
			'\f': '\\f',
			'\n': '\\n',
			'\r': '\\r',
			'\t': '\\t'
			// `\v` is omitted intentionally, because in IE < 9, '\v' == 'v'.
			// '\v': '\\x0B'
		};
		var regexSingleEscape = /["'\\\b\f\n\r\t]/;

		var regexDigit = /[0-9]/;
		var regexWhitelist = /[ !#-&\(-\[\]-~]/;

		var jsesc = function (argument, options) {
			// Handle options
			var defaults = {
				'escapeEverything': false,
				'escapeEtago': false,
				'quotes': 'single',
				'wrap': false,
				'es6': false,
				'json': false,
				'compact': true,
				'lowercaseHex': false,
				'numbers': 'decimal',
				'indent': '\t',
				'__indent__': '',
				'__inline1__': false,
				'__inline2__': false
			};
			var json = options && options.json;
			if (json) {
				defaults.quotes = 'double';
				defaults.wrap = true;
			}
			options = extend(defaults, options);
			if (options.quotes != 'single' && options.quotes != 'double') {
				options.quotes = 'single';
			}
			var quote = options.quotes == 'double' ? '"' : '\'';
			var compact = options.compact;
			var indent = options.indent;
			var lowercaseHex = options.lowercaseHex;
			var oldIndent = '';
			var inline1 = options.__inline1__;
			var inline2 = options.__inline2__;
			var newLine = compact ? '' : '\n';
			var result;
			var isEmpty = true;
			var useBinNumbers = options.numbers == 'binary';
			var useOctNumbers = options.numbers == 'octal';
			var useDecNumbers = options.numbers == 'decimal';
			var useHexNumbers = options.numbers == 'hexadecimal';

			if (json && argument && isFunction(argument.toJSON)) {
				argument = argument.toJSON();
			}

			if (!isString(argument)) {
				if (isMap(argument)) {
					if (argument.size == 0) {
						return 'new Map()';
					}
					if (!compact) {
						options.__inline1__ = true;
					}
					return 'new Map(' + jsesc(Array.from(argument), options) + ')';
				}
				if (isSet(argument)) {
					if (argument.size == 0) {
						return 'new Set()';
					}
					return 'new Set(' + jsesc(Array.from(argument), options) + ')';
				}
				if (isArray(argument)) {
					result = [];
					options.wrap = true;
					if (inline1) {
						options.__inline1__ = false;
						options.__inline2__ = true;
					} else {
						oldIndent = options.__indent__;
						indent += oldIndent;
						options.__indent__ = indent;
					}
					forEach(argument, function (value) {
						isEmpty = false;
						if (inline2) {
							options.__inline2__ = false;
						}
						result.push((compact || inline2 ? '' : indent) + jsesc(value, options));
					});
					if (isEmpty) {
						return '[]';
					}
					if (inline2) {
						return '[' + result.join(', ') + ']';
					}
					return '[' + newLine + result.join(',' + newLine) + newLine + (compact ? '' : oldIndent) + ']';
				} else if (isNumber(argument)) {
					if (json) {
						// Some number values (e.g. `Infinity`) cannot be represented in JSON.
						return JSON.stringify(argument);
					}
					if (useDecNumbers) {
						return String(argument);
					}
					if (useHexNumbers) {
						var tmp = argument.toString(16);
						if (!lowercaseHex) {
							tmp = tmp.toUpperCase();
						}
						return '0x' + tmp;
					}
					if (useBinNumbers) {
						return '0b' + argument.toString(2);
					}
					if (useOctNumbers) {
						return '0o' + argument.toString(8);
					}
				} else if (!isObject(argument)) {
					if (json) {
						// For some values (e.g. `undefined`, `function` objects),
						// `JSON.stringify(value)` returns `undefined` (which isn’t valid
						// JSON) instead of `'null'`.
						return JSON.stringify(argument) || 'null';
					}
					return String(argument);
				} else {
					// it’s an object
					result = [];
					options.wrap = true;
					oldIndent = options.__indent__;
					indent += oldIndent;
					options.__indent__ = indent;
					forOwn(argument, function (key, value) {
						isEmpty = false;
						result.push((compact ? '' : indent) + jsesc(key, options) + ':' + (compact ? '' : ' ') + jsesc(value, options));
					});
					if (isEmpty) {
						return '{}';
					}
					return '{' + newLine + result.join(',' + newLine) + newLine + (compact ? '' : oldIndent) + '}';
				}
			}

			var string = argument;
			// Loop over each code unit in the string and escape it
			var index = -1;
			var length = string.length;
			var first;
			var second;
			var codePoint;
			result = '';
			while (++index < length) {
				var character = string.charAt(index);
				if (options.es6) {
					first = string.charCodeAt(index);
					if ( // check if it’s the start of a surrogate pair
					first >= 0xD800 && first <= 0xDBFF && // high surrogate
					length > index + 1 // there is a next code unit
					) {
							second = string.charCodeAt(index + 1);
							if (second >= 0xDC00 && second <= 0xDFFF) {
								// low surrogate
								// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
								codePoint = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
								var hexadecimal = codePoint.toString(16);
								if (!lowercaseHex) {
									hexadecimal = hexadecimal.toUpperCase();
								}
								result += '\\u{' + hexadecimal + '}';
								index++;
								continue;
							}
						}
				}
				if (!options.escapeEverything) {
					if (regexWhitelist.test(character)) {
						// It’s a printable ASCII character that is not `"`, `'` or `\`,
						// so don’t escape it.
						result += character;
						continue;
					}
					if (character == '"') {
						result += quote == character ? '\\"' : character;
						continue;
					}
					if (character == '\'') {
						result += quote == character ? '\\\'' : character;
						continue;
					}
				}
				if (character == '\0' && !json && !regexDigit.test(string.charAt(index + 1))) {
					result += '\\0';
					continue;
				}
				if (regexSingleEscape.test(character)) {
					// no need for a `hasOwnProperty` check here
					result += singleEscapes[character];
					continue;
				}
				var charCode = character.charCodeAt(0);
				var hexadecimal = charCode.toString(16);
				if (!lowercaseHex) {
					hexadecimal = hexadecimal.toUpperCase();
				}
				var longhand = hexadecimal.length > 2 || json;
				var escaped = '\\' + (longhand ? 'u' : 'x') + ('0000' + hexadecimal).slice(longhand ? -4 : -2);
				result += escaped;
				continue;
			}
			if (options.wrap) {
				result = quote + result + quote;
			}
			if (options.escapeEtago) {
				// https://mathiasbynens.be/notes/etago
				return result.replace(/<\/(script|style)/gi, '<\\/$1');
			}
			return result;
		};

		jsesc.version = '1.3.0';

		/*--------------------------------------------------------------------------*/

		// Some AMD build optimizers, like r.js, check for specific condition patterns
		// like the following:
		if (typeof undefined == 'function' && typeof define.amd == 'object' && define.amd) {
			define(function () {
				return jsesc;
			});
		} else if (freeExports && !freeExports.nodeType) {
			if (freeModule) {
				// in Node.js or RingoJS v0.8.0+
				freeModule.exports = jsesc;
			} else {
				// in Narwhal or RingoJS v0.7.0-
				freeExports.jsesc = jsesc;
			}
		} else {
			// in Rhino or a web browser
			root.jsesc = jsesc;
		}
	})(exports);
});
$__System.registerDynamic("5a", ["11", "5b"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.ArrayPattern = exports.ObjectPattern = exports.RestProperty = exports.SpreadProperty = exports.SpreadElement = undefined;
  exports.Identifier = Identifier;
  exports.RestElement = RestElement;
  exports.ObjectExpression = ObjectExpression;
  exports.ObjectMethod = ObjectMethod;
  exports.ObjectProperty = ObjectProperty;
  exports.ArrayExpression = ArrayExpression;
  exports.RegExpLiteral = RegExpLiteral;
  exports.BooleanLiteral = BooleanLiteral;
  exports.NullLiteral = NullLiteral;
  exports.NumericLiteral = NumericLiteral;
  exports.StringLiteral = StringLiteral;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _jsesc = $__require("5b");

  var _jsesc2 = _interopRequireDefault(_jsesc);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function Identifier(node) {
    if (node.variance) {
      if (node.variance === "plus") {
        this.token("+");
      } else if (node.variance === "minus") {
        this.token("-");
      }
    }

    this.word(node.name);
  }

  function RestElement(node) {
    this.token("...");
    this.print(node.argument, node);
  }

  exports.SpreadElement = RestElement;
  exports.SpreadProperty = RestElement;
  exports.RestProperty = RestElement;
  function ObjectExpression(node) {
    var props = node.properties;

    this.token("{");
    this.printInnerComments(node);

    if (props.length) {
      this.space();
      this.printList(props, node, { indent: true, statement: true });
      this.space();
    }

    this.token("}");
  }

  exports.ObjectPattern = ObjectExpression;
  function ObjectMethod(node) {
    this.printJoin(node.decorators, node);
    this._method(node);
  }

  function ObjectProperty(node) {
    this.printJoin(node.decorators, node);

    if (node.computed) {
      this.token("[");
      this.print(node.key, node);
      this.token("]");
    } else {
      if (t.isAssignmentPattern(node.value) && t.isIdentifier(node.key) && node.key.name === node.value.left.name) {
        this.print(node.value, node);
        return;
      }

      this.print(node.key, node);

      if (node.shorthand && t.isIdentifier(node.key) && t.isIdentifier(node.value) && node.key.name === node.value.name) {
        return;
      }
    }

    this.token(":");
    this.space();
    this.print(node.value, node);
  }

  function ArrayExpression(node) {
    var elems = node.elements;
    var len = elems.length;

    this.token("[");
    this.printInnerComments(node);

    for (var i = 0; i < elems.length; i++) {
      var elem = elems[i];
      if (elem) {
        if (i > 0) this.space();
        this.print(elem, node);
        if (i < len - 1) this.token(",");
      } else {
        this.token(",");
      }
    }

    this.token("]");
  }

  exports.ArrayPattern = ArrayExpression;
  function RegExpLiteral(node) {
    this.word("/" + node.pattern + "/" + node.flags);
  }

  function BooleanLiteral(node) {
    this.word(node.value ? "true" : "false");
  }

  function NullLiteral() {
    this.word("null");
  }

  function NumericLiteral(node) {
    var raw = this.getPossibleRaw(node);
    var value = node.value + "";
    if (raw == null) {
      this.number(value);
    } else if (this.format.minified) {
      this.number(raw.length < value.length ? raw : value);
    } else {
      this.number(raw);
    }
  }

  function StringLiteral(node, parent) {
    var raw = this.getPossibleRaw(node);
    if (!this.format.minified && raw != null) {
      this.token(raw);
      return;
    }

    var opts = {
      quotes: t.isJSX(parent) ? "double" : this.format.quotes,
      wrap: true
    };
    if (this.format.jsonCompatibleStrings) {
      opts.json = true;
    }
    var val = (0, _jsesc2.default)(node.value, opts);

    return this.token(val);
  }
});
$__System.registerDynamic("5c", ["5a"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.File = File;
  exports.Program = Program;
  exports.BlockStatement = BlockStatement;
  exports.Noop = Noop;
  exports.Directive = Directive;

  var _types = $__require("5a");

  Object.defineProperty(exports, "DirectiveLiteral", {
    enumerable: true,
    get: function get() {
      return _types.StringLiteral;
    }
  });
  function File(node) {
    this.print(node.program, node);
  }

  function Program(node) {
    this.printInnerComments(node, false);

    this.printSequence(node.directives, node);
    if (node.directives && node.directives.length) this.newline();

    this.printSequence(node.body, node);
  }

  function BlockStatement(node) {
    this.token("{");
    this.printInnerComments(node);

    var hasDirectives = node.directives && node.directives.length;

    if (node.body.length || hasDirectives) {
      this.newline();

      this.printSequence(node.directives, node, { indent: true });
      if (hasDirectives) this.newline();

      this.printSequence(node.body, node, { indent: true });
      this.removeTrailingNewline();

      this.source("end", node.loc);

      if (!this.endsWith("\n")) this.newline();

      this.rightBrace();
    } else {
      this.source("end", node.loc);
      this.token("}");
    }
  }

  function Noop() {}

  function Directive(node) {
    this.print(node.value, node);
    this.semicolon();
  }
});
$__System.registerDynamic("5d", ["17"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.JSXAttribute = JSXAttribute;
  exports.JSXIdentifier = JSXIdentifier;
  exports.JSXNamespacedName = JSXNamespacedName;
  exports.JSXMemberExpression = JSXMemberExpression;
  exports.JSXSpreadAttribute = JSXSpreadAttribute;
  exports.JSXExpressionContainer = JSXExpressionContainer;
  exports.JSXSpreadChild = JSXSpreadChild;
  exports.JSXText = JSXText;
  exports.JSXElement = JSXElement;
  exports.JSXOpeningElement = JSXOpeningElement;
  exports.JSXClosingElement = JSXClosingElement;
  exports.JSXEmptyExpression = JSXEmptyExpression;

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function JSXAttribute(node) {
    this.print(node.name, node);
    if (node.value) {
      this.token("=");
      this.print(node.value, node);
    }
  }

  function JSXIdentifier(node) {
    this.word(node.name);
  }

  function JSXNamespacedName(node) {
    this.print(node.namespace, node);
    this.token(":");
    this.print(node.name, node);
  }

  function JSXMemberExpression(node) {
    this.print(node.object, node);
    this.token(".");
    this.print(node.property, node);
  }

  function JSXSpreadAttribute(node) {
    this.token("{");
    this.token("...");
    this.print(node.argument, node);
    this.token("}");
  }

  function JSXExpressionContainer(node) {
    this.token("{");
    this.print(node.expression, node);
    this.token("}");
  }

  function JSXSpreadChild(node) {
    this.token("{");
    this.token("...");
    this.print(node.expression, node);
    this.token("}");
  }

  function JSXText(node) {
    this.token(node.value);
  }

  function JSXElement(node) {
    var open = node.openingElement;
    this.print(open, node);
    if (open.selfClosing) return;

    this.indent();
    for (var _iterator = node.children, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var child = _ref;

      this.print(child, node);
    }
    this.dedent();

    this.print(node.closingElement, node);
  }

  function spaceSeparator() {
    this.space();
  }

  function JSXOpeningElement(node) {
    this.token("<");
    this.print(node.name, node);
    if (node.attributes.length > 0) {
      this.space();
      this.printJoin(node.attributes, node, { separator: spaceSeparator });
    }
    if (node.selfClosing) {
      this.space();
      this.token("/>");
    } else {
      this.token(">");
    }
  }

  function JSXClosingElement(node) {
    this.token("</");
    this.print(node.name, node);
    this.token(">");
  }

  function JSXEmptyExpression() {}
});
$__System.registerDynamic("5e", ["5f", "17", "60", "3a", "1f", "3f", "44", "45", "61", "4a", "53", "4b", "11", "4c", "54", "55", "56", "57", "58", "5a", "59", "5c", "5d"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _assign = $__require("5f");

  var _assign2 = _interopRequireDefault(_assign);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _stringify = $__require("60");

  var _stringify2 = _interopRequireDefault(_stringify);

  var _weakSet = $__require("3a");

  var _weakSet2 = _interopRequireDefault(_weakSet);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _find = $__require("3f");

  var _find2 = _interopRequireDefault(_find);

  var _findLast = $__require("44");

  var _findLast2 = _interopRequireDefault(_findLast);

  var _isInteger = $__require("45");

  var _isInteger2 = _interopRequireDefault(_isInteger);

  var _repeat = $__require("61");

  var _repeat2 = _interopRequireDefault(_repeat);

  var _buffer = $__require("4a");

  var _buffer2 = _interopRequireDefault(_buffer);

  var _node = $__require("53");

  var n = _interopRequireWildcard(_node);

  var _whitespace = $__require("4b");

  var _whitespace2 = _interopRequireDefault(_whitespace);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var SCIENTIFIC_NOTATION = /e/i;
  var ZERO_DECIMAL_INTEGER = /\.0+$/;
  var NON_DECIMAL_LITERAL = /^0[box]/;

  var Printer = function () {
    function Printer(format, map, tokens) {
      (0, _classCallCheck3.default)(this, Printer);
      this.inForStatementInitCounter = 0;
      this._printStack = [];
      this._indent = 0;
      this._insideAux = false;
      this._printedCommentStarts = {};
      this._parenPushNewlineState = null;
      this._printAuxAfterOnNextUserNode = false;
      this._printedComments = new _weakSet2.default();
      this._endsWithInteger = false;
      this._endsWithWord = false;

      this.format = format || {};
      this._buf = new _buffer2.default(map);
      this._whitespace = tokens.length > 0 ? new _whitespace2.default(tokens) : null;
    }

    Printer.prototype.generate = function generate(ast) {
      this.print(ast);
      this._maybeAddAuxComment();

      return this._buf.get();
    };

    Printer.prototype.indent = function indent() {
      if (this.format.compact || this.format.concise) return;

      this._indent++;
    };

    Printer.prototype.dedent = function dedent() {
      if (this.format.compact || this.format.concise) return;

      this._indent--;
    };

    Printer.prototype.semicolon = function semicolon() {
      var force = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      this._maybeAddAuxComment();
      this._append(";", !force);
    };

    Printer.prototype.rightBrace = function rightBrace() {
      if (this.format.minified) {
        this._buf.removeLastSemicolon();
      }
      this.token("}");
    };

    Printer.prototype.space = function space() {
      var force = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      if (this.format.compact) return;

      if (this._buf.hasContent() && !this.endsWith(" ") && !this.endsWith("\n") || force) {
        this._space();
      }
    };

    Printer.prototype.word = function word(str) {
      if (this._endsWithWord) this._space();

      this._maybeAddAuxComment();
      this._append(str);

      this._endsWithWord = true;
    };

    Printer.prototype.number = function number(str) {
      this.word(str);

      this._endsWithInteger = (0, _isInteger2.default)(+str) && !NON_DECIMAL_LITERAL.test(str) && !SCIENTIFIC_NOTATION.test(str) && !ZERO_DECIMAL_INTEGER.test(str) && str[str.length - 1] !== ".";
    };

    Printer.prototype.token = function token(str) {
      if (str === "--" && this.endsWith("!") || str[0] === "+" && this.endsWith("+") || str[0] === "-" && this.endsWith("-") || str[0] === "." && this._endsWithInteger) {
        this._space();
      }

      this._maybeAddAuxComment();
      this._append(str);
    };

    Printer.prototype.newline = function newline(i) {
      if (this.format.retainLines || this.format.compact) return;

      if (this.format.concise) {
        this.space();
        return;
      }

      if (this.endsWith("\n\n")) return;

      if (typeof i !== "number") i = 1;

      i = Math.min(2, i);
      if (this.endsWith("{\n") || this.endsWith(":\n")) i--;
      if (i <= 0) return;

      for (var j = 0; j < i; j++) {
        this._newline();
      }
    };

    Printer.prototype.endsWith = function endsWith(str) {
      return this._buf.endsWith(str);
    };

    Printer.prototype.removeTrailingNewline = function removeTrailingNewline() {
      this._buf.removeTrailingNewline();
    };

    Printer.prototype.source = function source(prop, loc) {
      this._catchUp(prop, loc);

      this._buf.source(prop, loc);
    };

    Printer.prototype.withSource = function withSource(prop, loc, cb) {
      this._catchUp(prop, loc);

      this._buf.withSource(prop, loc, cb);
    };

    Printer.prototype._space = function _space() {
      this._append(" ", true);
    };

    Printer.prototype._newline = function _newline() {
      this._append("\n", true);
    };

    Printer.prototype._append = function _append(str) {
      var queue = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      this._maybeAddParen(str);
      this._maybeIndent(str);

      if (queue) this._buf.queue(str);else this._buf.append(str);

      this._endsWithWord = false;
      this._endsWithInteger = false;
    };

    Printer.prototype._maybeIndent = function _maybeIndent(str) {
      if (this._indent && this.endsWith("\n") && str[0] !== "\n") {
        this._buf.queue(this._getIndent());
      }
    };

    Printer.prototype._maybeAddParen = function _maybeAddParen(str) {
      var parenPushNewlineState = this._parenPushNewlineState;
      if (!parenPushNewlineState) return;
      this._parenPushNewlineState = null;

      var i = void 0;
      for (i = 0; i < str.length && str[i] === " "; i++) {
        continue;
      }if (i === str.length) return;

      var cha = str[i];
      if (cha === "\n" || cha === "/") {
        this.token("(");
        this.indent();
        parenPushNewlineState.printed = true;
      }
    };

    Printer.prototype._catchUp = function _catchUp(prop, loc) {
      if (!this.format.retainLines) return;

      var pos = loc ? loc[prop] : null;
      if (pos && pos.line !== null) {
        var count = pos.line - this._buf.getCurrentLine();

        for (var i = 0; i < count; i++) {
          this._newline();
        }
      }
    };

    Printer.prototype._getIndent = function _getIndent() {
      return (0, _repeat2.default)(this.format.indent.style, this._indent);
    };

    Printer.prototype.startTerminatorless = function startTerminatorless() {
      return this._parenPushNewlineState = {
        printed: false
      };
    };

    Printer.prototype.endTerminatorless = function endTerminatorless(state) {
      if (state.printed) {
        this.dedent();
        this.newline();
        this.token(")");
      }
    };

    Printer.prototype.print = function print(node, parent) {
      var _this = this;

      if (!node) return;

      var oldConcise = this.format.concise;
      if (node._compact) {
        this.format.concise = true;
      }

      var printMethod = this[node.type];
      if (!printMethod) {
        throw new ReferenceError("unknown node of type " + (0, _stringify2.default)(node.type) + " with constructor " + (0, _stringify2.default)(node && node.constructor.name));
      }

      this._printStack.push(node);

      var oldInAux = this._insideAux;
      this._insideAux = !node.loc;
      this._maybeAddAuxComment(this._insideAux && !oldInAux);

      var needsParens = n.needsParens(node, parent, this._printStack);
      if (this.format.retainFunctionParens && node.type === "FunctionExpression" && node.extra && node.extra.parenthesized) {
        needsParens = true;
      }
      if (needsParens) this.token("(");

      this._printLeadingComments(node, parent);

      var loc = t.isProgram(node) || t.isFile(node) ? null : node.loc;
      this.withSource("start", loc, function () {
        _this[node.type](node, parent);
      });

      this._printTrailingComments(node, parent);

      if (needsParens) this.token(")");

      this._printStack.pop();

      this.format.concise = oldConcise;
      this._insideAux = oldInAux;
    };

    Printer.prototype._maybeAddAuxComment = function _maybeAddAuxComment(enteredPositionlessNode) {
      if (enteredPositionlessNode) this._printAuxBeforeComment();
      if (!this._insideAux) this._printAuxAfterComment();
    };

    Printer.prototype._printAuxBeforeComment = function _printAuxBeforeComment() {
      if (this._printAuxAfterOnNextUserNode) return;
      this._printAuxAfterOnNextUserNode = true;

      var comment = this.format.auxiliaryCommentBefore;
      if (comment) {
        this._printComment({
          type: "CommentBlock",
          value: comment
        });
      }
    };

    Printer.prototype._printAuxAfterComment = function _printAuxAfterComment() {
      if (!this._printAuxAfterOnNextUserNode) return;
      this._printAuxAfterOnNextUserNode = false;

      var comment = this.format.auxiliaryCommentAfter;
      if (comment) {
        this._printComment({
          type: "CommentBlock",
          value: comment
        });
      }
    };

    Printer.prototype.getPossibleRaw = function getPossibleRaw(node) {
      var extra = node.extra;
      if (extra && extra.raw != null && extra.rawValue != null && node.value === extra.rawValue) {
        return extra.raw;
      }
    };

    Printer.prototype.printJoin = function printJoin(nodes, parent) {
      var opts = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

      if (!nodes || !nodes.length) return;

      if (opts.indent) this.indent();

      var newlineOpts = {
        addNewlines: opts.addNewlines
      };

      for (var i = 0; i < nodes.length; i++) {
        var node = nodes[i];
        if (!node) continue;

        if (opts.statement) this._printNewline(true, node, parent, newlineOpts);

        this.print(node, parent);

        if (opts.iterator) {
          opts.iterator(node, i);
        }

        if (opts.separator && i < nodes.length - 1) {
          opts.separator.call(this);
        }

        if (opts.statement) this._printNewline(false, node, parent, newlineOpts);
      }

      if (opts.indent) this.dedent();
    };

    Printer.prototype.printAndIndentOnComments = function printAndIndentOnComments(node, parent) {
      var indent = !!node.leadingComments;
      if (indent) this.indent();
      this.print(node, parent);
      if (indent) this.dedent();
    };

    Printer.prototype.printBlock = function printBlock(parent) {
      var node = parent.body;

      if (!t.isEmptyStatement(node)) {
        this.space();
      }

      this.print(node, parent);
    };

    Printer.prototype._printTrailingComments = function _printTrailingComments(node, parent) {
      this._printComments(this._getComments(false, node, parent));
    };

    Printer.prototype._printLeadingComments = function _printLeadingComments(node, parent) {
      this._printComments(this._getComments(true, node, parent));
    };

    Printer.prototype.printInnerComments = function printInnerComments(node) {
      var indent = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      if (!node.innerComments) return;
      if (indent) this.indent();
      this._printComments(node.innerComments);
      if (indent) this.dedent();
    };

    Printer.prototype.printSequence = function printSequence(nodes, parent) {
      var opts = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

      opts.statement = true;
      return this.printJoin(nodes, parent, opts);
    };

    Printer.prototype.printList = function printList(items, parent) {
      var opts = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

      if (opts.separator == null) {
        opts.separator = commaSeparator;
      }

      return this.printJoin(items, parent, opts);
    };

    Printer.prototype._printNewline = function _printNewline(leading, node, parent, opts) {
      var _this2 = this;

      if (this.format.retainLines || this.format.compact) return;

      if (this.format.concise) {
        this.space();
        return;
      }

      var lines = 0;

      if (node.start != null && !node._ignoreUserWhitespace && this._whitespace) {
        if (leading) {
          var _comments = node.leadingComments;
          var _comment = _comments && (0, _find2.default)(_comments, function (comment) {
            return !!comment.loc && _this2.format.shouldPrintComment(comment.value);
          });

          lines = this._whitespace.getNewlinesBefore(_comment || node);
        } else {
          var _comments2 = node.trailingComments;
          var _comment2 = _comments2 && (0, _findLast2.default)(_comments2, function (comment) {
            return !!comment.loc && _this2.format.shouldPrintComment(comment.value);
          });

          lines = this._whitespace.getNewlinesAfter(_comment2 || node);
        }
      } else {
        if (!leading) lines++;
        if (opts.addNewlines) lines += opts.addNewlines(leading, node) || 0;

        var needs = n.needsWhitespaceAfter;
        if (leading) needs = n.needsWhitespaceBefore;
        if (needs(node, parent)) lines++;

        if (!this._buf.hasContent()) lines = 0;
      }

      this.newline(lines);
    };

    Printer.prototype._getComments = function _getComments(leading, node) {
      return node && (leading ? node.leadingComments : node.trailingComments) || [];
    };

    Printer.prototype._printComment = function _printComment(comment) {
      var _this3 = this;

      if (!this.format.shouldPrintComment(comment.value)) return;

      if (comment.ignore) return;

      if (this._printedComments.has(comment)) return;
      this._printedComments.add(comment);

      if (comment.start != null) {
        if (this._printedCommentStarts[comment.start]) return;
        this._printedCommentStarts[comment.start] = true;
      }

      this.newline(this._whitespace ? this._whitespace.getNewlinesBefore(comment) : 0);

      if (!this.endsWith("[") && !this.endsWith("{")) this.space();

      var val = comment.type === "CommentLine" ? "//" + comment.value + "\n" : "/*" + comment.value + "*/";

      if (comment.type === "CommentBlock" && this.format.indent.adjustMultilineComment) {
        var offset = comment.loc && comment.loc.start.column;
        if (offset) {
          var newlineRegex = new RegExp("\\n\\s{1," + offset + "}", "g");
          val = val.replace(newlineRegex, "\n");
        }

        var indentSize = Math.max(this._getIndent().length, this._buf.getCurrentColumn());
        val = val.replace(/\n(?!$)/g, "\n" + (0, _repeat2.default)(" ", indentSize));
      }

      this.withSource("start", comment.loc, function () {
        _this3._append(val);
      });

      this.newline((this._whitespace ? this._whitespace.getNewlinesAfter(comment) : 0) + (comment.type === "CommentLine" ? -1 : 0));
    };

    Printer.prototype._printComments = function _printComments(comments) {
      if (!comments || !comments.length) return;

      for (var _iterator = comments, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var _comment3 = _ref;

        this._printComment(_comment3);
      }
    };

    return Printer;
  }();

  exports.default = Printer;

  function commaSeparator() {
    this.token(",");
    this.space();
  }

  var _arr = [$__require("4c"), $__require("54"), $__require("55"), $__require("56"), $__require("57"), $__require("58"), $__require("5a"), $__require("59"), $__require("5c"), $__require("5d")];
  for (var _i2 = 0; _i2 < _arr.length; _i2++) {
    var generator = _arr[_i2];
    (0, _assign2.default)(Printer.prototype, generator);
  }
  module.exports = exports["default"];
});
$__System.registerDynamic("e", ["1f", "20", "21", "25", "31", "f", "5e"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.CodeGenerator = undefined;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _possibleConstructorReturn2 = $__require("20");

  var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

  var _inherits2 = $__require("21");

  var _inherits3 = _interopRequireDefault(_inherits2);

  exports.default = function (ast, opts, code) {
    var gen = new Generator(ast, opts, code);
    return gen.generate();
  };

  var _detectIndent = $__require("25");

  var _detectIndent2 = _interopRequireDefault(_detectIndent);

  var _sourceMap = $__require("31");

  var _sourceMap2 = _interopRequireDefault(_sourceMap);

  var _babelMessages = $__require("f");

  var messages = _interopRequireWildcard(_babelMessages);

  var _printer = $__require("5e");

  var _printer2 = _interopRequireDefault(_printer);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var Generator = function (_Printer) {
    (0, _inherits3.default)(Generator, _Printer);

    function Generator(ast) {
      var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      var code = arguments[2];
      (0, _classCallCheck3.default)(this, Generator);

      var tokens = ast.tokens || [];
      var format = normalizeOptions(code, opts, tokens);
      var map = opts.sourceMaps ? new _sourceMap2.default(opts, code) : null;

      var _this = (0, _possibleConstructorReturn3.default)(this, _Printer.call(this, format, map, tokens));

      _this.ast = ast;
      return _this;
    }

    Generator.prototype.generate = function generate() {
      return _Printer.prototype.generate.call(this, this.ast);
    };

    return Generator;
  }(_printer2.default);

  function normalizeOptions(code, opts, tokens) {
    var style = "  ";
    if (code && typeof code === "string") {
      var indent = (0, _detectIndent2.default)(code).indent;
      if (indent && indent !== " ") style = indent;
    }

    var format = {
      auxiliaryCommentBefore: opts.auxiliaryCommentBefore,
      auxiliaryCommentAfter: opts.auxiliaryCommentAfter,
      shouldPrintComment: opts.shouldPrintComment,
      retainLines: opts.retainLines,
      retainFunctionParens: opts.retainFunctionParens,
      comments: opts.comments == null || opts.comments,
      compact: opts.compact,
      minified: opts.minified,
      concise: opts.concise,
      quotes: opts.quotes || findCommonStringDelimiter(code, tokens),
      jsonCompatibleStrings: opts.jsonCompatibleStrings,
      indent: {
        adjustMultilineComment: true,
        style: style,
        base: 0
      },
      flowCommaSeparator: opts.flowCommaSeparator
    };

    if (format.minified) {
      format.compact = true;

      format.shouldPrintComment = format.shouldPrintComment || function () {
        return format.comments;
      };
    } else {
      format.shouldPrintComment = format.shouldPrintComment || function (value) {
        return format.comments || value.indexOf("@license") >= 0 || value.indexOf("@preserve") >= 0;
      };
    }

    if (format.compact === "auto") {
      format.compact = code.length > 500000;

      if (format.compact) {
        console.error("[BABEL] " + messages.get("codeGeneratorDeopt", opts.filename, "500KB"));
      }
    }

    if (format.compact) {
      format.indent.adjustMultilineComment = false;
    }

    return format;
  }

  function findCommonStringDelimiter(code, tokens) {
    var DEFAULT_STRING_DELIMITER = "double";
    if (!code) {
      return DEFAULT_STRING_DELIMITER;
    }

    var occurrences = {
      single: 0,
      double: 0
    };

    var checked = 0;

    for (var i = 0; i < tokens.length; i++) {
      var token = tokens[i];
      if (token.type.label !== "string") continue;

      var raw = code.slice(token.start, token.end);
      if (raw[0] === "'") {
        occurrences.single++;
      } else {
        occurrences.double++;
      }

      checked++;
      if (checked >= 3) break;
    }
    if (occurrences.single > occurrences.double) {
      return "single";
    } else {
      return "double";
    }
  }

  var CodeGenerator = exports.CodeGenerator = function () {
    function CodeGenerator(ast, opts, code) {
      (0, _classCallCheck3.default)(this, CodeGenerator);

      this._generator = new Generator(ast, opts, code);
    }

    CodeGenerator.prototype.generate = function generate() {
      return this._generator.generate();
    };

    return CodeGenerator;
  }();
});
$__System.registerDynamic("62", ["1f", "63", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _node = $__require("63");

  var _node2 = _interopRequireDefault(_node);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var verboseDebug = (0, _node2.default)("babel:verbose");
  var generalDebug = (0, _node2.default)("babel");

  var seenDeprecatedMessages = [];

  var Logger = function () {
    function Logger(file, filename) {
      (0, _classCallCheck3.default)(this, Logger);

      this.filename = filename;
      this.file = file;
    }

    Logger.prototype._buildMessage = function _buildMessage(msg) {
      var parts = "[BABEL] " + this.filename;
      if (msg) parts += ": " + msg;
      return parts;
    };

    Logger.prototype.warn = function warn(msg) {
      console.warn(this._buildMessage(msg));
    };

    Logger.prototype.error = function error(msg) {
      var Constructor = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : Error;

      throw new Constructor(this._buildMessage(msg));
    };

    Logger.prototype.deprecate = function deprecate(msg) {
      if (this.file.opts && this.file.opts.suppressDeprecationMessages) return;

      msg = this._buildMessage(msg);

      if (seenDeprecatedMessages.indexOf(msg) >= 0) return;

      seenDeprecatedMessages.push(msg);

      console.error(msg);
    };

    Logger.prototype.verbose = function verbose(msg) {
      if (verboseDebug.enabled) verboseDebug(this._buildMessage(msg));
    };

    Logger.prototype.debug = function debug(msg) {
      if (generalDebug.enabled) generalDebug(this._buildMessage(msg));
    };

    Logger.prototype.deopt = function deopt(node, msg) {
      this.debug(msg);
    };

    return Logger;
  }();

  exports.default = Logger;
  module.exports = exports["default"];
});
$__System.registerDynamic('64', ['65', '66', '50'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var Symbol = $__require('65'),
        isArguments = $__require('66'),
        isArray = $__require('50');

    /** Built-in value references. */
    var spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined;

    /**
     * Checks if `value` is a flattenable `arguments` object or array.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
     */
    function isFlattenable(value) {
        return isArray(value) || isArguments(value) || !!(spreadableSymbol && value && value[spreadableSymbol]);
    }

    module.exports = isFlattenable;
});
$__System.registerDynamic('67', ['68', '64'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var arrayPush = $__require('68'),
      isFlattenable = $__require('64');

  /**
   * The base implementation of `_.flatten` with support for restricting flattening.
   *
   * @private
   * @param {Array} array The array to flatten.
   * @param {number} depth The maximum recursion depth.
   * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
   * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
   * @param {Array} [result=[]] The initial result value.
   * @returns {Array} Returns the new flattened array.
   */
  function baseFlatten(array, depth, predicate, isStrict, result) {
    var index = -1,
        length = array.length;

    predicate || (predicate = isFlattenable);
    result || (result = []);

    while (++index < length) {
      var value = array[index];
      if (depth > 0 && predicate(value)) {
        if (depth > 1) {
          // Recursively flatten arrays (susceptible to call stack limits).
          baseFlatten(value, depth - 1, predicate, isStrict, result);
        } else {
          arrayPush(result, value);
        }
      } else if (!isStrict) {
        result[result.length] = value;
      }
    }
    return result;
  }

  module.exports = baseFlatten;
});
$__System.registerDynamic('69', ['6a', '6b'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Stack = $__require('6a'),
      baseIsEqual = $__require('6b');

  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1,
      COMPARE_UNORDERED_FLAG = 2;

  /**
   * The base implementation of `_.isMatch` without support for iteratee shorthands.
   *
   * @private
   * @param {Object} object The object to inspect.
   * @param {Object} source The object of property values to match.
   * @param {Array} matchData The property names, values, and compare flags to match.
   * @param {Function} [customizer] The function to customize comparisons.
   * @returns {boolean} Returns `true` if `object` is a match, else `false`.
   */
  function baseIsMatch(object, source, matchData, customizer) {
    var index = matchData.length,
        length = index,
        noCustomizer = !customizer;

    if (object == null) {
      return !length;
    }
    object = Object(object);
    while (index--) {
      var data = matchData[index];
      if (noCustomizer && data[2] ? data[1] !== object[data[0]] : !(data[0] in object)) {
        return false;
      }
    }
    while (++index < length) {
      data = matchData[index];
      var key = data[0],
          objValue = object[key],
          srcValue = data[1];

      if (noCustomizer && data[2]) {
        if (objValue === undefined && !(key in object)) {
          return false;
        }
      } else {
        var stack = new Stack();
        if (customizer) {
          var result = customizer(objValue, srcValue, key, object, source, stack);
        }
        if (!(result === undefined ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) : result)) {
          return false;
        }
      }
    }
    return true;
  }

  module.exports = baseIsMatch;
});
$__System.registerDynamic('6c', ['6d', '42'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var isStrictComparable = $__require('6d'),
        keys = $__require('42');

    /**
     * Gets the property names, values, and compare flags of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the match data of `object`.
     */
    function getMatchData(object) {
        var result = keys(object),
            length = result.length;

        while (length--) {
            var key = result[length],
                value = object[key];

            result[length] = [key, value, isStrictComparable(value)];
        }
        return result;
    }

    module.exports = getMatchData;
});
$__System.registerDynamic('6e', ['69', '6c', '6f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseIsMatch = $__require('69'),
      getMatchData = $__require('6c'),
      matchesStrictComparable = $__require('6f');

  /**
   * The base implementation of `_.matches` which doesn't clone `source`.
   *
   * @private
   * @param {Object} source The object of property values to match.
   * @returns {Function} Returns the new spec function.
   */
  function baseMatches(source) {
    var matchData = getMatchData(source);
    if (matchData.length == 1 && matchData[0][2]) {
      return matchesStrictComparable(matchData[0][0], matchData[0][1]);
    }
    return function (object) {
      return object === source || baseIsMatch(object, source, matchData);
    };
  }

  module.exports = baseMatches;
});
$__System.registerDynamic("70", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * A specialized version of `_.some` for arrays without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {boolean} Returns `true` if any element passes the predicate check,
   *  else `false`.
   */
  function arraySome(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (predicate(array[index], index, array)) {
        return true;
      }
    }
    return false;
  }

  module.exports = arraySome;
});
$__System.registerDynamic('71', ['72', '70', '73'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var SetCache = $__require('72'),
      arraySome = $__require('70'),
      cacheHas = $__require('73');

  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1,
      COMPARE_UNORDERED_FLAG = 2;

  /**
   * A specialized version of `baseIsEqualDeep` for arrays with support for
   * partial deep comparisons.
   *
   * @private
   * @param {Array} array The array to compare.
   * @param {Array} other The other array to compare.
   * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
   * @param {Function} customizer The function to customize comparisons.
   * @param {Function} equalFunc The function to determine equivalents of values.
   * @param {Object} stack Tracks traversed `array` and `other` objects.
   * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
   */
  function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {
    var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
        arrLength = array.length,
        othLength = other.length;

    if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
      return false;
    }
    // Assume cyclic values are equal.
    var stacked = stack.get(array);
    if (stacked && stack.get(other)) {
      return stacked == other;
    }
    var index = -1,
        result = true,
        seen = bitmask & COMPARE_UNORDERED_FLAG ? new SetCache() : undefined;

    stack.set(array, other);
    stack.set(other, array);

    // Ignore non-index properties.
    while (++index < arrLength) {
      var arrValue = array[index],
          othValue = other[index];

      if (customizer) {
        var compared = isPartial ? customizer(othValue, arrValue, index, other, array, stack) : customizer(arrValue, othValue, index, array, other, stack);
      }
      if (compared !== undefined) {
        if (compared) {
          continue;
        }
        result = false;
        break;
      }
      // Recursively compare arrays (susceptible to call stack limits).
      if (seen) {
        if (!arraySome(other, function (othValue, othIndex) {
          if (!cacheHas(seen, othIndex) && (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
            return seen.push(othIndex);
          }
        })) {
          result = false;
          break;
        }
      } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
        result = false;
        break;
      }
    }
    stack['delete'](array);
    stack['delete'](other);
    return result;
  }

  module.exports = equalArrays;
});
$__System.registerDynamic('74', ['65', '75', '76', '71', '77', '78'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Symbol = $__require('65'),
      Uint8Array = $__require('75'),
      eq = $__require('76'),
      equalArrays = $__require('71'),
      mapToArray = $__require('77'),
      setToArray = $__require('78');

  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1,
      COMPARE_UNORDERED_FLAG = 2;

  /** `Object#toString` result references. */
  var boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      errorTag = '[object Error]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      symbolTag = '[object Symbol]';

  var arrayBufferTag = '[object ArrayBuffer]',
      dataViewTag = '[object DataView]';

  /** Used to convert symbols to primitives and strings. */
  var symbolProto = Symbol ? Symbol.prototype : undefined,
      symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;

  /**
   * A specialized version of `baseIsEqualDeep` for comparing objects of
   * the same `toStringTag`.
   *
   * **Note:** This function only supports comparing values with tags of
   * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
   *
   * @private
   * @param {Object} object The object to compare.
   * @param {Object} other The other object to compare.
   * @param {string} tag The `toStringTag` of the objects to compare.
   * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
   * @param {Function} customizer The function to customize comparisons.
   * @param {Function} equalFunc The function to determine equivalents of values.
   * @param {Object} stack Tracks traversed `object` and `other` objects.
   * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
   */
  function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
    switch (tag) {
      case dataViewTag:
        if (object.byteLength != other.byteLength || object.byteOffset != other.byteOffset) {
          return false;
        }
        object = object.buffer;
        other = other.buffer;

      case arrayBufferTag:
        if (object.byteLength != other.byteLength || !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
          return false;
        }
        return true;

      case boolTag:
      case dateTag:
      case numberTag:
        // Coerce booleans to `1` or `0` and dates to milliseconds.
        // Invalid dates are coerced to `NaN`.
        return eq(+object, +other);

      case errorTag:
        return object.name == other.name && object.message == other.message;

      case regexpTag:
      case stringTag:
        // Coerce regexes to strings and treat strings, primitives and objects,
        // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
        // for more details.
        return object == other + '';

      case mapTag:
        var convert = mapToArray;

      case setTag:
        var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
        convert || (convert = setToArray);

        if (object.size != other.size && !isPartial) {
          return false;
        }
        // Assume cyclic values are equal.
        var stacked = stack.get(object);
        if (stacked) {
          return stacked == other;
        }
        bitmask |= COMPARE_UNORDERED_FLAG;

        // Recursively compare objects (susceptible to call stack limits).
        stack.set(object, other);
        var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
        stack['delete'](object);
        return result;

      case symbolTag:
        if (symbolValueOf) {
          return symbolValueOf.call(object) == symbolValueOf.call(other);
        }
    }
    return false;
  }

  module.exports = equalByTag;
});
$__System.registerDynamic('79', ['7a'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var getAllKeys = $__require('7a');

  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1;

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * A specialized version of `baseIsEqualDeep` for objects with support for
   * partial deep comparisons.
   *
   * @private
   * @param {Object} object The object to compare.
   * @param {Object} other The other object to compare.
   * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
   * @param {Function} customizer The function to customize comparisons.
   * @param {Function} equalFunc The function to determine equivalents of values.
   * @param {Object} stack Tracks traversed `object` and `other` objects.
   * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
   */
  function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {
    var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
        objProps = getAllKeys(object),
        objLength = objProps.length,
        othProps = getAllKeys(other),
        othLength = othProps.length;

    if (objLength != othLength && !isPartial) {
      return false;
    }
    var index = objLength;
    while (index--) {
      var key = objProps[index];
      if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
        return false;
      }
    }
    // Assume cyclic values are equal.
    var stacked = stack.get(object);
    if (stacked && stack.get(other)) {
      return stacked == other;
    }
    var result = true;
    stack.set(object, other);
    stack.set(other, object);

    var skipCtor = isPartial;
    while (++index < objLength) {
      key = objProps[index];
      var objValue = object[key],
          othValue = other[key];

      if (customizer) {
        var compared = isPartial ? customizer(othValue, objValue, key, other, object, stack) : customizer(objValue, othValue, key, object, other, stack);
      }
      // Recursively compare objects (susceptible to call stack limits).
      if (!(compared === undefined ? objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack) : compared)) {
        result = false;
        break;
      }
      skipCtor || (skipCtor = key == 'constructor');
    }
    if (result && !skipCtor) {
      var objCtor = object.constructor,
          othCtor = other.constructor;

      // Non `Object` object instances with different constructors are not equal.
      if (objCtor != othCtor && 'constructor' in object && 'constructor' in other && !(typeof objCtor == 'function' && objCtor instanceof objCtor && typeof othCtor == 'function' && othCtor instanceof othCtor)) {
        result = false;
      }
    }
    stack['delete'](object);
    stack['delete'](other);
    return result;
  }

  module.exports = equalObjects;
});
$__System.registerDynamic('7b', ['6a', '71', '74', '79', '7c', '50', '7d', '7e'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Stack = $__require('6a'),
      equalArrays = $__require('71'),
      equalByTag = $__require('74'),
      equalObjects = $__require('79'),
      getTag = $__require('7c'),
      isArray = $__require('50'),
      isBuffer = $__require('7d'),
      isTypedArray = $__require('7e');

  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1;

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      objectTag = '[object Object]';

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * A specialized version of `baseIsEqual` for arrays and objects which performs
   * deep comparisons and tracks traversed objects enabling objects with circular
   * references to be compared.
   *
   * @private
   * @param {Object} object The object to compare.
   * @param {Object} other The other object to compare.
   * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
   * @param {Function} customizer The function to customize comparisons.
   * @param {Function} equalFunc The function to determine equivalents of values.
   * @param {Object} [stack] Tracks traversed `object` and `other` objects.
   * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
   */
  function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
    var objIsArr = isArray(object),
        othIsArr = isArray(other),
        objTag = objIsArr ? arrayTag : getTag(object),
        othTag = othIsArr ? arrayTag : getTag(other);

    objTag = objTag == argsTag ? objectTag : objTag;
    othTag = othTag == argsTag ? objectTag : othTag;

    var objIsObj = objTag == objectTag,
        othIsObj = othTag == objectTag,
        isSameTag = objTag == othTag;

    if (isSameTag && isBuffer(object)) {
      if (!isBuffer(other)) {
        return false;
      }
      objIsArr = true;
      objIsObj = false;
    }
    if (isSameTag && !objIsObj) {
      stack || (stack = new Stack());
      return objIsArr || isTypedArray(object) ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
    }
    if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
      var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
          othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

      if (objIsWrapped || othIsWrapped) {
        var objUnwrapped = objIsWrapped ? object.value() : object,
            othUnwrapped = othIsWrapped ? other.value() : other;

        stack || (stack = new Stack());
        return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
      }
    }
    if (!isSameTag) {
      return false;
    }
    stack || (stack = new Stack());
    return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
  }

  module.exports = baseIsEqualDeep;
});
$__System.registerDynamic('6b', ['7b', '7f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseIsEqualDeep = $__require('7b'),
      isObjectLike = $__require('7f');

  /**
   * The base implementation of `_.isEqual` which supports partial comparisons
   * and tracks traversed objects.
   *
   * @private
   * @param {*} value The value to compare.
   * @param {*} other The other value to compare.
   * @param {boolean} bitmask The bitmask flags.
   *  1 - Unordered comparison
   *  2 - Partial comparison
   * @param {Function} [customizer] The function to customize comparisons.
   * @param {Object} [stack] Tracks traversed `value` and `other` objects.
   * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
   */
  function baseIsEqual(value, other, bitmask, customizer, stack) {
    if (value === other) {
      return true;
    }
    if (value == null || other == null || !isObjectLike(value) && !isObjectLike(other)) {
      return value !== value && other !== other;
    }
    return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
  }

  module.exports = baseIsEqual;
});
$__System.registerDynamic('80', ['81'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseGet = $__require('81');

  /**
   * Gets the value at `path` of `object`. If the resolved value is
   * `undefined`, the `defaultValue` is returned in its place.
   *
   * @static
   * @memberOf _
   * @since 3.7.0
   * @category Object
   * @param {Object} object The object to query.
   * @param {Array|string} path The path of the property to get.
   * @param {*} [defaultValue] The value returned for `undefined` resolved values.
   * @returns {*} Returns the resolved value.
   * @example
   *
   * var object = { 'a': [{ 'b': { 'c': 3 } }] };
   *
   * _.get(object, 'a[0].b.c');
   * // => 3
   *
   * _.get(object, ['a', '0', 'b', 'c']);
   * // => 3
   *
   * _.get(object, 'a.b.c', 'default');
   * // => 'default'
   */
  function get(object, path, defaultValue) {
    var result = object == null ? undefined : baseGet(object, path);
    return result === undefined ? defaultValue : result;
  }

  module.exports = get;
});
$__System.registerDynamic("82", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * The base implementation of `_.hasIn` without support for deep paths.
   *
   * @private
   * @param {Object} [object] The object to query.
   * @param {Array|string} key The key to check.
   * @returns {boolean} Returns `true` if `key` exists, else `false`.
   */
  function baseHasIn(object, key) {
    return object != null && key in Object(object);
  }

  module.exports = baseHasIn;
});
$__System.registerDynamic('83', ['82', '84'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseHasIn = $__require('82'),
      hasPath = $__require('84');

  /**
   * Checks if `path` is a direct or inherited property of `object`.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Object
   * @param {Object} object The object to query.
   * @param {Array|string} path The path to check.
   * @returns {boolean} Returns `true` if `path` exists, else `false`.
   * @example
   *
   * var object = _.create({ 'a': _.create({ 'b': 2 }) });
   *
   * _.hasIn(object, 'a');
   * // => true
   *
   * _.hasIn(object, 'a.b');
   * // => true
   *
   * _.hasIn(object, ['a', 'b']);
   * // => true
   *
   * _.hasIn(object, 'b');
   * // => false
   */
  function hasIn(object, path) {
    return object != null && hasPath(object, path, baseHasIn);
  }

  module.exports = hasIn;
});
$__System.registerDynamic('6d', ['85'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isObject = $__require('85');

  /**
   * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` if suitable for strict
   *  equality comparisons, else `false`.
   */
  function isStrictComparable(value) {
    return value === value && !isObject(value);
  }

  module.exports = isStrictComparable;
});
$__System.registerDynamic("6f", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * A specialized version of `matchesProperty` for source values suitable
   * for strict equality comparisons, i.e. `===`.
   *
   * @private
   * @param {string} key The key of the property to get.
   * @param {*} srcValue The value to match.
   * @returns {Function} Returns the new spec function.
   */
  function matchesStrictComparable(key, srcValue) {
    return function (object) {
      if (object == null) {
        return false;
      }
      return object[key] === srcValue && (srcValue !== undefined || key in Object(object));
    };
  }

  module.exports = matchesStrictComparable;
});
$__System.registerDynamic('86', ['6b', '80', '83', '87', '6d', '6f', '88'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseIsEqual = $__require('6b'),
      get = $__require('80'),
      hasIn = $__require('83'),
      isKey = $__require('87'),
      isStrictComparable = $__require('6d'),
      matchesStrictComparable = $__require('6f'),
      toKey = $__require('88');

  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1,
      COMPARE_UNORDERED_FLAG = 2;

  /**
   * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
   *
   * @private
   * @param {string} path The path of the property to get.
   * @param {*} srcValue The value to match.
   * @returns {Function} Returns the new spec function.
   */
  function baseMatchesProperty(path, srcValue) {
    if (isKey(path) && isStrictComparable(srcValue)) {
      return matchesStrictComparable(toKey(path), srcValue);
    }
    return function (object) {
      var objValue = get(object, path);
      return objValue === undefined && objValue === srcValue ? hasIn(object, path) : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);
    };
  }

  module.exports = baseMatchesProperty;
});
$__System.registerDynamic("89", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * The base implementation of `_.property` without support for deep paths.
   *
   * @private
   * @param {string} key The key of the property to get.
   * @returns {Function} Returns the new accessor function.
   */
  function baseProperty(key) {
    return function (object) {
      return object == null ? undefined : object[key];
    };
  }

  module.exports = baseProperty;
});
$__System.registerDynamic('81', ['8a', '88'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var castPath = $__require('8a'),
      toKey = $__require('88');

  /**
   * The base implementation of `_.get` without support for default values.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array|string} path The path of the property to get.
   * @returns {*} Returns the resolved value.
   */
  function baseGet(object, path) {
    path = castPath(path, object);

    var index = 0,
        length = path.length;

    while (object != null && index < length) {
      object = object[toKey(path[index++])];
    }
    return index && index == length ? object : undefined;
  }

  module.exports = baseGet;
});
$__System.registerDynamic('8b', ['81'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseGet = $__require('81');

  /**
   * A specialized version of `baseProperty` which supports deep paths.
   *
   * @private
   * @param {Array|string} path The path of the property to get.
   * @returns {Function} Returns the new accessor function.
   */
  function basePropertyDeep(path) {
    return function (object) {
      return baseGet(object, path);
    };
  }

  module.exports = basePropertyDeep;
});
$__System.registerDynamic('8c', ['89', '8b', '87', '88'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseProperty = $__require('89'),
      basePropertyDeep = $__require('8b'),
      isKey = $__require('87'),
      toKey = $__require('88');

  /**
   * Creates a function that returns the value at `path` of a given object.
   *
   * @static
   * @memberOf _
   * @since 2.4.0
   * @category Util
   * @param {Array|string} path The path of the property to get.
   * @returns {Function} Returns the new accessor function.
   * @example
   *
   * var objects = [
   *   { 'a': { 'b': 2 } },
   *   { 'a': { 'b': 1 } }
   * ];
   *
   * _.map(objects, _.property('a.b'));
   * // => [2, 1]
   *
   * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
   * // => [1, 2]
   */
  function property(path) {
    return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
  }

  module.exports = property;
});
$__System.registerDynamic('3d', ['6e', '86', '8d', '50', '8c'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseMatches = $__require('6e'),
      baseMatchesProperty = $__require('86'),
      identity = $__require('8d'),
      isArray = $__require('50'),
      property = $__require('8c');

  /**
   * The base implementation of `_.iteratee`.
   *
   * @private
   * @param {*} [value=_.identity] The value to convert to an iteratee.
   * @returns {Function} Returns the iteratee.
   */
  function baseIteratee(value) {
    // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
    // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
    if (typeof value == 'function') {
      return value;
    }
    if (value == null) {
      return identity;
    }
    if (typeof value == 'object') {
      return isArray(value) ? baseMatchesProperty(value[0], value[1]) : baseMatches(value);
    }
    return property(value);
  }

  module.exports = baseIteratee;
});
$__System.registerDynamic('8e', ['8f', '42'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseFor = $__require('8f'),
      keys = $__require('42');

  /**
   * The base implementation of `_.forOwn` without support for iteratee shorthands.
   *
   * @private
   * @param {Object} object The object to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Object} Returns `object`.
   */
  function baseForOwn(object, iteratee) {
    return object && baseFor(object, iteratee, keys);
  }

  module.exports = baseForOwn;
});
$__System.registerDynamic('90', ['41'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isArrayLike = $__require('41');

  /**
   * Creates a `baseEach` or `baseEachRight` function.
   *
   * @private
   * @param {Function} eachFunc The function to iterate over a collection.
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {Function} Returns the new base function.
   */
  function createBaseEach(eachFunc, fromRight) {
    return function (collection, iteratee) {
      if (collection == null) {
        return collection;
      }
      if (!isArrayLike(collection)) {
        return eachFunc(collection, iteratee);
      }
      var length = collection.length,
          index = fromRight ? length : -1,
          iterable = Object(collection);

      while (fromRight ? index-- : ++index < length) {
        if (iteratee(iterable[index], index, iterable) === false) {
          break;
        }
      }
      return collection;
    };
  }

  module.exports = createBaseEach;
});
$__System.registerDynamic('91', ['8e', '90'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseForOwn = $__require('8e'),
      createBaseEach = $__require('90');

  /**
   * The base implementation of `_.forEach` without support for iteratee shorthands.
   *
   * @private
   * @param {Array|Object} collection The collection to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array|Object} Returns `collection`.
   */
  var baseEach = createBaseEach(baseForOwn);

  module.exports = baseEach;
});
$__System.registerDynamic('4f', ['91', '41'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseEach = $__require('91'),
      isArrayLike = $__require('41');

  /**
   * The base implementation of `_.map` without support for iteratee shorthands.
   *
   * @private
   * @param {Array|Object} collection The collection to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the new mapped array.
   */
  function baseMap(collection, iteratee) {
    var index = -1,
        result = isArrayLike(collection) ? Array(collection.length) : [];

    baseEach(collection, function (value, key, collection) {
      result[++index] = iteratee(value, key, collection);
    });
    return result;
  }

  module.exports = baseMap;
});
$__System.registerDynamic("92", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * The base implementation of `_.sortBy` which uses `comparer` to define the
   * sort order of `array` and replaces criteria objects with their corresponding
   * values.
   *
   * @private
   * @param {Array} array The array to sort.
   * @param {Function} comparer The function to define sort order.
   * @returns {Array} Returns `array`.
   */
  function baseSortBy(array, comparer) {
    var length = array.length;

    array.sort(comparer);
    while (length--) {
      array[length] = array[length].value;
    }
    return array;
  }

  module.exports = baseSortBy;
});
$__System.registerDynamic('93', ['94'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isSymbol = $__require('94');

  /**
   * Compares values to sort them in ascending order.
   *
   * @private
   * @param {*} value The value to compare.
   * @param {*} other The other value to compare.
   * @returns {number} Returns the sort order indicator for `value`.
   */
  function compareAscending(value, other) {
    if (value !== other) {
      var valIsDefined = value !== undefined,
          valIsNull = value === null,
          valIsReflexive = value === value,
          valIsSymbol = isSymbol(value);

      var othIsDefined = other !== undefined,
          othIsNull = other === null,
          othIsReflexive = other === other,
          othIsSymbol = isSymbol(other);

      if (!othIsNull && !othIsSymbol && !valIsSymbol && value > other || valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol || valIsNull && othIsDefined && othIsReflexive || !valIsDefined && othIsReflexive || !valIsReflexive) {
        return 1;
      }
      if (!valIsNull && !valIsSymbol && !othIsSymbol && value < other || othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol || othIsNull && valIsDefined && valIsReflexive || !othIsDefined && valIsReflexive || !othIsReflexive) {
        return -1;
      }
    }
    return 0;
  }

  module.exports = compareAscending;
});
$__System.registerDynamic('95', ['93'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var compareAscending = $__require('93');

  /**
   * Used by `_.orderBy` to compare multiple properties of a value to another
   * and stable sort them.
   *
   * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
   * specify an order of "desc" for descending or "asc" for ascending sort order
   * of corresponding values.
   *
   * @private
   * @param {Object} object The object to compare.
   * @param {Object} other The other object to compare.
   * @param {boolean[]|string[]} orders The order to sort by for each property.
   * @returns {number} Returns the sort order indicator for `object`.
   */
  function compareMultiple(object, other, orders) {
    var index = -1,
        objCriteria = object.criteria,
        othCriteria = other.criteria,
        length = objCriteria.length,
        ordersLength = orders.length;

    while (++index < length) {
      var result = compareAscending(objCriteria[index], othCriteria[index]);
      if (result) {
        if (index >= ordersLength) {
          return result;
        }
        var order = orders[index];
        return result * (order == 'desc' ? -1 : 1);
      }
    }
    // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
    // that causes it, under certain circumstances, to provide the same value for
    // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
    // for more details.
    //
    // This also ensures a stable sort in V8 and other engines.
    // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
    return object.index - other.index;
  }

  module.exports = compareMultiple;
});
$__System.registerDynamic('96', ['4e', '3d', '4f', '92', '97', '95', '8d'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var arrayMap = $__require('4e'),
      baseIteratee = $__require('3d'),
      baseMap = $__require('4f'),
      baseSortBy = $__require('92'),
      baseUnary = $__require('97'),
      compareMultiple = $__require('95'),
      identity = $__require('8d');

  /**
   * The base implementation of `_.orderBy` without param guards.
   *
   * @private
   * @param {Array|Object} collection The collection to iterate over.
   * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
   * @param {string[]} orders The sort orders of `iteratees`.
   * @returns {Array} Returns the new sorted array.
   */
  function baseOrderBy(collection, iteratees, orders) {
    var index = -1;
    iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee));

    var result = baseMap(collection, function (value, key, collection) {
      var criteria = arrayMap(iteratees, function (iteratee) {
        return iteratee(value);
      });
      return { 'criteria': criteria, 'index': ++index, 'value': value };
    });

    return baseSortBy(result, function (object, other) {
      return compareMultiple(object, other, orders);
    });
  }

  module.exports = baseOrderBy;
});
$__System.registerDynamic('98', ['67', '96', '99', '9a'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseFlatten = $__require('67'),
      baseOrderBy = $__require('96'),
      baseRest = $__require('99'),
      isIterateeCall = $__require('9a');

  /**
   * Creates an array of elements, sorted in ascending order by the results of
   * running each element in a collection thru each iteratee. This method
   * performs a stable sort, that is, it preserves the original sort order of
   * equal elements. The iteratees are invoked with one argument: (value).
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Collection
   * @param {Array|Object} collection The collection to iterate over.
   * @param {...(Function|Function[])} [iteratees=[_.identity]]
   *  The iteratees to sort by.
   * @returns {Array} Returns the new sorted array.
   * @example
   *
   * var users = [
   *   { 'user': 'fred',   'age': 48 },
   *   { 'user': 'barney', 'age': 36 },
   *   { 'user': 'fred',   'age': 40 },
   *   { 'user': 'barney', 'age': 34 }
   * ];
   *
   * _.sortBy(users, [function(o) { return o.user; }]);
   * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
   *
   * _.sortBy(users, ['user', 'age']);
   * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]]
   */
  var sortBy = baseRest(function (collection, iteratees) {
    if (collection == null) {
      return [];
    }
    var length = iteratees.length;
    if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
      iteratees = [];
    } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
      iteratees = [iteratees[0]];
    }
    return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
  });

  module.exports = sortBy;
});
$__System.registerDynamic("9b", ["9c", "98", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _plugin = $__require("9c");

  var _plugin2 = _interopRequireDefault(_plugin);

  var _sortBy = $__require("98");

  var _sortBy2 = _interopRequireDefault(_sortBy);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.default = new _plugin2.default({

    name: "internal.blockHoist",

    visitor: {
      Block: {
        exit: function exit(_ref) {
          var node = _ref.node;

          var hasChange = false;
          for (var i = 0; i < node.body.length; i++) {
            var bodyNode = node.body[i];
            if (bodyNode && bodyNode._blockHoist != null) {
              hasChange = true;
              break;
            }
          }
          if (!hasChange) return;

          node.body = (0, _sortBy2.default)(node.body, function (bodyNode) {
            var priority = bodyNode && bodyNode._blockHoist;
            if (priority == null) priority = 1;
            if (priority === true) priority = 2;

            return -1 * priority;
          });
        }
      }
    }
  });
  module.exports = exports["default"];
});
$__System.registerDynamic("9d", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (obj, keys) {
    var target = {};

    for (var i in obj) {
      if (keys.indexOf(i) >= 0) continue;
      if (!Object.prototype.hasOwnProperty.call(obj, i)) continue;
      target[i] = obj[i];
    }

    return target;
  };
});
$__System.registerDynamic('9e', ['9f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var toString = $__require('9f');

  /**
   * Used to match `RegExp`
   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
   */
  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
      reHasRegExpChar = RegExp(reRegExpChar.source);

  /**
   * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
   * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
   *
   * @static
   * @memberOf _
   * @since 3.0.0
   * @category String
   * @param {string} [string=''] The string to escape.
   * @returns {string} Returns the escaped string.
   * @example
   *
   * _.escapeRegExp('[lodash](https://lodash.com/)');
   * // => '\[lodash\]\(https://lodash\.com/\)'
   */
  function escapeRegExp(string) {
    string = toString(string);
    return string && reHasRegExpChar.test(string) ? string.replace(reRegExpChar, '\\$&') : string;
  }

  module.exports = escapeRegExp;
});
$__System.registerDynamic("a0", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * The base implementation of `_.clamp` which doesn't coerce arguments.
   *
   * @private
   * @param {number} number The number to clamp.
   * @param {number} [lower] The lower bound.
   * @param {number} upper The upper bound.
   * @returns {number} Returns the clamped number.
   */
  function baseClamp(number, lower, upper) {
    if (number === number) {
      if (upper !== undefined) {
        number = number <= upper ? number : upper;
      }
      if (lower !== undefined) {
        number = number >= lower ? number : lower;
      }
    }
    return number;
  }

  module.exports = baseClamp;
});
$__System.registerDynamic('a1', ['a0', 'a2', '3e', '9f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseClamp = $__require('a0'),
      baseToString = $__require('a2'),
      toInteger = $__require('3e'),
      toString = $__require('9f');

  /**
   * Checks if `string` starts with the given target string.
   *
   * @static
   * @memberOf _
   * @since 3.0.0
   * @category String
   * @param {string} [string=''] The string to inspect.
   * @param {string} [target] The string to search for.
   * @param {number} [position=0] The position to search from.
   * @returns {boolean} Returns `true` if `string` starts with `target`,
   *  else `false`.
   * @example
   *
   * _.startsWith('abc', 'a');
   * // => true
   *
   * _.startsWith('abc', 'b');
   * // => false
   *
   * _.startsWith('abc', 'b', 1);
   * // => true
   */
  function startsWith(string, target, position) {
    string = toString(string);
    position = position == null ? 0 : baseClamp(toInteger(position), 0, string.length);

    target = baseToString(target);
    return string.slice(position, position + target.length) == target;
  }

  module.exports = startsWith;
});
$__System.registerDynamic('a3', [], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    module.exports = function (xs, fn) {
        var res = [];
        for (var i = 0; i < xs.length; i++) {
            var x = fn(xs[i], i);
            if (isArray(x)) res.push.apply(res, x);else res.push(x);
        }
        return res;
    };

    var isArray = Array.isArray || function (xs) {
        return Object.prototype.toString.call(xs) === '[object Array]';
    };
});
$__System.registerDynamic('a4', [], true, function ($__require, exports, module) {
  'use strict';

  var global = this || self,
      GLOBAL = global;
  module.exports = balanced;
  function balanced(a, b, str) {
    if (a instanceof RegExp) a = maybeMatch(a, str);
    if (b instanceof RegExp) b = maybeMatch(b, str);

    var r = range(a, b, str);

    return r && {
      start: r[0],
      end: r[1],
      pre: str.slice(0, r[0]),
      body: str.slice(r[0] + a.length, r[1]),
      post: str.slice(r[1] + b.length)
    };
  }

  function maybeMatch(reg, str) {
    var m = str.match(reg);
    return m ? m[0] : null;
  }

  balanced.range = range;
  function range(a, b, str) {
    var begs, beg, left, right, result;
    var ai = str.indexOf(a);
    var bi = str.indexOf(b, ai + 1);
    var i = ai;

    if (ai >= 0 && bi > 0) {
      begs = [];
      left = str.length;

      while (i >= 0 && !result) {
        if (i == ai) {
          begs.push(i);
          ai = str.indexOf(a, i + 1);
        } else if (begs.length == 1) {
          result = [begs.pop(), bi];
        } else {
          beg = begs.pop();
          if (beg < left) {
            left = beg;
            right = bi;
          }

          bi = str.indexOf(b, i + 1);
        }

        i = ai < bi && ai >= 0 ? ai : bi;
      }

      if (begs.length) {
        result = [left, right];
      }
    }

    return result;
  }
});
$__System.registerDynamic('a5', ['a3', 'a4'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var concatMap = $__require('a3');
  var balanced = $__require('a4');

  module.exports = expandTop;

  var escSlash = '\0SLASH' + Math.random() + '\0';
  var escOpen = '\0OPEN' + Math.random() + '\0';
  var escClose = '\0CLOSE' + Math.random() + '\0';
  var escComma = '\0COMMA' + Math.random() + '\0';
  var escPeriod = '\0PERIOD' + Math.random() + '\0';

  function numeric(str) {
    return parseInt(str, 10) == str ? parseInt(str, 10) : str.charCodeAt(0);
  }

  function escapeBraces(str) {
    return str.split('\\\\').join(escSlash).split('\\{').join(escOpen).split('\\}').join(escClose).split('\\,').join(escComma).split('\\.').join(escPeriod);
  }

  function unescapeBraces(str) {
    return str.split(escSlash).join('\\').split(escOpen).join('{').split(escClose).join('}').split(escComma).join(',').split(escPeriod).join('.');
  }

  // Basically just str.split(","), but handling cases
  // where we have nested braced sections, which should be
  // treated as individual members, like {a,{b,c},d}
  function parseCommaParts(str) {
    if (!str) return [''];

    var parts = [];
    var m = balanced('{', '}', str);

    if (!m) return str.split(',');

    var pre = m.pre;
    var body = m.body;
    var post = m.post;
    var p = pre.split(',');

    p[p.length - 1] += '{' + body + '}';
    var postParts = parseCommaParts(post);
    if (post.length) {
      p[p.length - 1] += postParts.shift();
      p.push.apply(p, postParts);
    }

    parts.push.apply(parts, p);

    return parts;
  }

  function expandTop(str) {
    if (!str) return [];

    // I don't know why Bash 4.3 does this, but it does.
    // Anything starting with {} will have the first two bytes preserved
    // but *only* at the top level, so {},a}b will not expand to anything,
    // but a{},b}c will be expanded to [a}c,abc].
    // One could argue that this is a bug in Bash, but since the goal of
    // this module is to match Bash's rules, we escape a leading {}
    if (str.substr(0, 2) === '{}') {
      str = '\\{\\}' + str.substr(2);
    }

    return expand(escapeBraces(str), true).map(unescapeBraces);
  }

  function identity(e) {
    return e;
  }

  function embrace(str) {
    return '{' + str + '}';
  }
  function isPadded(el) {
    return (/^-?0\d/.test(el)
    );
  }

  function lte(i, y) {
    return i <= y;
  }
  function gte(i, y) {
    return i >= y;
  }

  function expand(str, isTop) {
    var expansions = [];

    var m = balanced('{', '}', str);
    if (!m || /\$$/.test(m.pre)) return [str];

    var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body);
    var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body);
    var isSequence = isNumericSequence || isAlphaSequence;
    var isOptions = m.body.indexOf(',') >= 0;
    if (!isSequence && !isOptions) {
      // {a},b}
      if (m.post.match(/,.*\}/)) {
        str = m.pre + '{' + m.body + escClose + m.post;
        return expand(str);
      }
      return [str];
    }

    var n;
    if (isSequence) {
      n = m.body.split(/\.\./);
    } else {
      n = parseCommaParts(m.body);
      if (n.length === 1) {
        // x{{a,b}}y ==> x{a}y x{b}y
        n = expand(n[0], false).map(embrace);
        if (n.length === 1) {
          var post = m.post.length ? expand(m.post, false) : [''];
          return post.map(function (p) {
            return m.pre + n[0] + p;
          });
        }
      }
    }

    // at this point, n is the parts, and we know it's not a comma set
    // with a single entry.

    // no need to expand pre, since it is guaranteed to be free of brace-sets
    var pre = m.pre;
    var post = m.post.length ? expand(m.post, false) : [''];

    var N;

    if (isSequence) {
      var x = numeric(n[0]);
      var y = numeric(n[1]);
      var width = Math.max(n[0].length, n[1].length);
      var incr = n.length == 3 ? Math.abs(numeric(n[2])) : 1;
      var test = lte;
      var reverse = y < x;
      if (reverse) {
        incr *= -1;
        test = gte;
      }
      var pad = n.some(isPadded);

      N = [];

      for (var i = x; test(i, y); i += incr) {
        var c;
        if (isAlphaSequence) {
          c = String.fromCharCode(i);
          if (c === '\\') c = '';
        } else {
          c = String(i);
          if (pad) {
            var need = width - c.length;
            if (need > 0) {
              var z = new Array(need + 1).join('0');
              if (i < 0) c = '-' + z + c.slice(1);else c = z + c;
            }
          }
        }
        N.push(c);
      }
    } else {
      N = concatMap(n, function (el) {
        return expand(el, false);
      });
    }

    for (var j = 0; j < N.length; j++) {
      for (var k = 0; k < post.length; k++) {
        var expansion = pre + N[j] + post[k];
        if (!isTop || isSequence || expansion) expansions.push(expansion);
      }
    }

    return expansions;
  }
});
$__System.registerDynamic('a6', ['1a', 'a5'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = minimatch;
  minimatch.Minimatch = Minimatch;

  var path = { sep: '/' };
  try {
    path = $__require('1a');
  } catch (er) {}

  var GLOBSTAR = minimatch.GLOBSTAR = Minimatch.GLOBSTAR = {};
  var expand = $__require('a5');

  var plTypes = {
    '!': { open: '(?:(?!(?:', close: '))[^/]*?)' },
    '?': { open: '(?:', close: ')?' },
    '+': { open: '(?:', close: ')+' },
    '*': { open: '(?:', close: ')*' },
    '@': { open: '(?:', close: ')' }

    // any single thing other than /
    // don't need to escape / when using new RegExp()
  };var qmark = '[^/]';

  // * => any number of characters
  var star = qmark + '*?';

  // ** when dots are allowed.  Anything goes, except .. and .
  // not (^ or / followed by one or two dots followed by $ or /),
  // followed by anything, any number of times.
  var twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?';

  // not a ^ or / followed by a dot,
  // followed by anything, any number of times.
  var twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?';

  // characters that need to be escaped in RegExp.
  var reSpecials = charSet('().*{}+?[]^$\\!');

  // "abc" -> { a:true, b:true, c:true }
  function charSet(s) {
    return s.split('').reduce(function (set, c) {
      set[c] = true;
      return set;
    }, {});
  }

  // normalizes slashes.
  var slashSplit = /\/+/;

  minimatch.filter = filter;
  function filter(pattern, options) {
    options = options || {};
    return function (p, i, list) {
      return minimatch(p, pattern, options);
    };
  }

  function ext(a, b) {
    a = a || {};
    b = b || {};
    var t = {};
    Object.keys(b).forEach(function (k) {
      t[k] = b[k];
    });
    Object.keys(a).forEach(function (k) {
      t[k] = a[k];
    });
    return t;
  }

  minimatch.defaults = function (def) {
    if (!def || !Object.keys(def).length) return minimatch;

    var orig = minimatch;

    var m = function minimatch(p, pattern, options) {
      return orig.minimatch(p, pattern, ext(def, options));
    };

    m.Minimatch = function Minimatch(pattern, options) {
      return new orig.Minimatch(pattern, ext(def, options));
    };

    return m;
  };

  Minimatch.defaults = function (def) {
    if (!def || !Object.keys(def).length) return Minimatch;
    return minimatch.defaults(def).Minimatch;
  };

  function minimatch(p, pattern, options) {
    if (typeof pattern !== 'string') {
      throw new TypeError('glob pattern string required');
    }

    if (!options) options = {};

    // shortcut: comments match nothing.
    if (!options.nocomment && pattern.charAt(0) === '#') {
      return false;
    }

    // "" only matches ""
    if (pattern.trim() === '') return p === '';

    return new Minimatch(pattern, options).match(p);
  }

  function Minimatch(pattern, options) {
    if (!(this instanceof Minimatch)) {
      return new Minimatch(pattern, options);
    }

    if (typeof pattern !== 'string') {
      throw new TypeError('glob pattern string required');
    }

    if (!options) options = {};
    pattern = pattern.trim();

    // windows support: need to use /, not \
    if (path.sep !== '/') {
      pattern = pattern.split(path.sep).join('/');
    }

    this.options = options;
    this.set = [];
    this.pattern = pattern;
    this.regexp = null;
    this.negate = false;
    this.comment = false;
    this.empty = false;

    // make the set of regexps etc.
    this.make();
  }

  Minimatch.prototype.debug = function () {};

  Minimatch.prototype.make = make;
  function make() {
    // don't do it more than once.
    if (this._made) return;

    var pattern = this.pattern;
    var options = this.options;

    // empty patterns and comments match nothing.
    if (!options.nocomment && pattern.charAt(0) === '#') {
      this.comment = true;
      return;
    }
    if (!pattern) {
      this.empty = true;
      return;
    }

    // step 1: figure out negation, etc.
    this.parseNegate();

    // step 2: expand braces
    var set = this.globSet = this.braceExpand();

    if (options.debug) this.debug = console.error;

    this.debug(this.pattern, set);

    // step 3: now we have a set, so turn each one into a series of path-portion
    // matching patterns.
    // These will be regexps, except in the case of "**", which is
    // set to the GLOBSTAR object for globstar behavior,
    // and will not contain any / characters
    set = this.globParts = set.map(function (s) {
      return s.split(slashSplit);
    });

    this.debug(this.pattern, set);

    // glob --> regexps
    set = set.map(function (s, si, set) {
      return s.map(this.parse, this);
    }, this);

    this.debug(this.pattern, set);

    // filter out everything that didn't compile properly.
    set = set.filter(function (s) {
      return s.indexOf(false) === -1;
    });

    this.debug(this.pattern, set);

    this.set = set;
  }

  Minimatch.prototype.parseNegate = parseNegate;
  function parseNegate() {
    var pattern = this.pattern;
    var negate = false;
    var options = this.options;
    var negateOffset = 0;

    if (options.nonegate) return;

    for (var i = 0, l = pattern.length; i < l && pattern.charAt(i) === '!'; i++) {
      negate = !negate;
      negateOffset++;
    }

    if (negateOffset) this.pattern = pattern.substr(negateOffset);
    this.negate = negate;
  }

  // Brace expansion:
  // a{b,c}d -> abd acd
  // a{b,}c -> abc ac
  // a{0..3}d -> a0d a1d a2d a3d
  // a{b,c{d,e}f}g -> abg acdfg acefg
  // a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg
  //
  // Invalid sets are not expanded.
  // a{2..}b -> a{2..}b
  // a{b}c -> a{b}c
  minimatch.braceExpand = function (pattern, options) {
    return braceExpand(pattern, options);
  };

  Minimatch.prototype.braceExpand = braceExpand;

  function braceExpand(pattern, options) {
    if (!options) {
      if (this instanceof Minimatch) {
        options = this.options;
      } else {
        options = {};
      }
    }

    pattern = typeof pattern === 'undefined' ? this.pattern : pattern;

    if (typeof pattern === 'undefined') {
      throw new TypeError('undefined pattern');
    }

    if (options.nobrace || !pattern.match(/\{.*\}/)) {
      // shortcut. no need to expand.
      return [pattern];
    }

    return expand(pattern);
  }

  // parse a component of the expanded set.
  // At this point, no pattern may contain "/" in it
  // so we're going to return a 2d array, where each entry is the full
  // pattern, split on '/', and then turned into a regular expression.
  // A regexp is made at the end which joins each array with an
  // escaped /, and another full one which joins each regexp with |.
  //
  // Following the lead of Bash 4.1, note that "**" only has special meaning
  // when it is the *only* thing in a path portion.  Otherwise, any series
  // of * is equivalent to a single *.  Globstar behavior is enabled by
  // default, and can be disabled by setting options.noglobstar.
  Minimatch.prototype.parse = parse;
  var SUBPARSE = {};
  function parse(pattern, isSub) {
    if (pattern.length > 1024 * 64) {
      throw new TypeError('pattern is too long');
    }

    var options = this.options;

    // shortcuts
    if (!options.noglobstar && pattern === '**') return GLOBSTAR;
    if (pattern === '') return '';

    var re = '';
    var hasMagic = !!options.nocase;
    var escaping = false;
    // ? => one single character
    var patternListStack = [];
    var negativeLists = [];
    var stateChar;
    var inClass = false;
    var reClassStart = -1;
    var classStart = -1;
    // . and .. never match anything that doesn't start with .,
    // even when options.dot is set.
    var patternStart = pattern.charAt(0) === '.' ? '' // anything
    // not (start or / followed by . or .. followed by / or end)
    : options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))' : '(?!\\.)';
    var self = this;

    function clearStateChar() {
      if (stateChar) {
        // we had some state-tracking character
        // that wasn't consumed by this pass.
        switch (stateChar) {
          case '*':
            re += star;
            hasMagic = true;
            break;
          case '?':
            re += qmark;
            hasMagic = true;
            break;
          default:
            re += '\\' + stateChar;
            break;
        }
        self.debug('clearStateChar %j %j', stateChar, re);
        stateChar = false;
      }
    }

    for (var i = 0, len = pattern.length, c; i < len && (c = pattern.charAt(i)); i++) {
      this.debug('%s\t%s %s %j', pattern, i, re, c);

      // skip over any that are escaped.
      if (escaping && reSpecials[c]) {
        re += '\\' + c;
        escaping = false;
        continue;
      }

      switch (c) {
        case '/':
          // completely not allowed, even escaped.
          // Should already be path-split by now.
          return false;

        case '\\':
          clearStateChar();
          escaping = true;
          continue;

        // the various stateChar values
        // for the "extglob" stuff.
        case '?':
        case '*':
        case '+':
        case '@':
        case '!':
          this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c);

          // all of those are literals inside a class, except that
          // the glob [!a] means [^a] in regexp
          if (inClass) {
            this.debug('  in class');
            if (c === '!' && i === classStart + 1) c = '^';
            re += c;
            continue;
          }

          // if we already have a stateChar, then it means
          // that there was something like ** or +? in there.
          // Handle the stateChar, then proceed with this one.
          self.debug('call clearStateChar %j', stateChar);
          clearStateChar();
          stateChar = c;
          // if extglob is disabled, then +(asdf|foo) isn't a thing.
          // just clear the statechar *now*, rather than even diving into
          // the patternList stuff.
          if (options.noext) clearStateChar();
          continue;

        case '(':
          if (inClass) {
            re += '(';
            continue;
          }

          if (!stateChar) {
            re += '\\(';
            continue;
          }

          patternListStack.push({
            type: stateChar,
            start: i - 1,
            reStart: re.length,
            open: plTypes[stateChar].open,
            close: plTypes[stateChar].close
          });
          // negation is (?:(?!js)[^/]*)
          re += stateChar === '!' ? '(?:(?!(?:' : '(?:';
          this.debug('plType %j %j', stateChar, re);
          stateChar = false;
          continue;

        case ')':
          if (inClass || !patternListStack.length) {
            re += '\\)';
            continue;
          }

          clearStateChar();
          hasMagic = true;
          var pl = patternListStack.pop();
          // negation is (?:(?!js)[^/]*)
          // The others are (?:<pattern>)<type>
          re += pl.close;
          if (pl.type === '!') {
            negativeLists.push(pl);
          }
          pl.reEnd = re.length;
          continue;

        case '|':
          if (inClass || !patternListStack.length || escaping) {
            re += '\\|';
            escaping = false;
            continue;
          }

          clearStateChar();
          re += '|';
          continue;

        // these are mostly the same in regexp and glob
        case '[':
          // swallow any state-tracking char before the [
          clearStateChar();

          if (inClass) {
            re += '\\' + c;
            continue;
          }

          inClass = true;
          classStart = i;
          reClassStart = re.length;
          re += c;
          continue;

        case ']':
          //  a right bracket shall lose its special
          //  meaning and represent itself in
          //  a bracket expression if it occurs
          //  first in the list.  -- POSIX.2 2.8.3.2
          if (i === classStart + 1 || !inClass) {
            re += '\\' + c;
            escaping = false;
            continue;
          }

          // handle the case where we left a class open.
          // "[z-a]" is valid, equivalent to "\[z-a\]"
          if (inClass) {
            // split where the last [ was, make sure we don't have
            // an invalid re. if so, re-walk the contents of the
            // would-be class to re-translate any characters that
            // were passed through as-is
            // TODO: It would probably be faster to determine this
            // without a try/catch and a new RegExp, but it's tricky
            // to do safely.  For now, this is safe and works.
            var cs = pattern.substring(classStart + 1, i);
            try {
              RegExp('[' + cs + ']');
            } catch (er) {
              // not a valid class!
              var sp = this.parse(cs, SUBPARSE);
              re = re.substr(0, reClassStart) + '\\[' + sp[0] + '\\]';
              hasMagic = hasMagic || sp[1];
              inClass = false;
              continue;
            }
          }

          // finish up the class.
          hasMagic = true;
          inClass = false;
          re += c;
          continue;

        default:
          // swallow any state char that wasn't consumed
          clearStateChar();

          if (escaping) {
            // no need
            escaping = false;
          } else if (reSpecials[c] && !(c === '^' && inClass)) {
            re += '\\';
          }

          re += c;

      } // switch
    } // for

    // handle the case where we left a class open.
    // "[abc" is valid, equivalent to "\[abc"
    if (inClass) {
      // split where the last [ was, and escape it
      // this is a huge pita.  We now have to re-walk
      // the contents of the would-be class to re-translate
      // any characters that were passed through as-is
      cs = pattern.substr(classStart + 1);
      sp = this.parse(cs, SUBPARSE);
      re = re.substr(0, reClassStart) + '\\[' + sp[0];
      hasMagic = hasMagic || sp[1];
    }

    // handle the case where we had a +( thing at the *end*
    // of the pattern.
    // each pattern list stack adds 3 chars, and we need to go through
    // and escape any | chars that were passed through as-is for the regexp.
    // Go through and escape them, taking care not to double-escape any
    // | chars that were already escaped.
    for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) {
      var tail = re.slice(pl.reStart + pl.open.length);
      this.debug('setting tail', re, pl);
      // maybe some even number of \, then maybe 1 \, followed by a |
      tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, function (_, $1, $2) {
        if (!$2) {
          // the | isn't already escaped, so escape it.
          $2 = '\\';
        }

        // need to escape all those slashes *again*, without escaping the
        // one that we need for escaping the | character.  As it works out,
        // escaping an even number of slashes can be done by simply repeating
        // it exactly after itself.  That's why this trick works.
        //
        // I am sorry that you have to see this.
        return $1 + $1 + $2 + '|';
      });

      this.debug('tail=%j\n   %s', tail, tail, pl, re);
      var t = pl.type === '*' ? star : pl.type === '?' ? qmark : '\\' + pl.type;

      hasMagic = true;
      re = re.slice(0, pl.reStart) + t + '\\(' + tail;
    }

    // handle trailing things that only matter at the very end.
    clearStateChar();
    if (escaping) {
      // trailing \\
      re += '\\\\';
    }

    // only need to apply the nodot start if the re starts with
    // something that could conceivably capture a dot
    var addPatternStart = false;
    switch (re.charAt(0)) {
      case '.':
      case '[':
      case '(':
        addPatternStart = true;
    }

    // Hack to work around lack of negative lookbehind in JS
    // A pattern like: *.!(x).!(y|z) needs to ensure that a name
    // like 'a.xyz.yz' doesn't match.  So, the first negative
    // lookahead, has to look ALL the way ahead, to the end of
    // the pattern.
    for (var n = negativeLists.length - 1; n > -1; n--) {
      var nl = negativeLists[n];

      var nlBefore = re.slice(0, nl.reStart);
      var nlFirst = re.slice(nl.reStart, nl.reEnd - 8);
      var nlLast = re.slice(nl.reEnd - 8, nl.reEnd);
      var nlAfter = re.slice(nl.reEnd);

      nlLast += nlAfter;

      // Handle nested stuff like *(*.js|!(*.json)), where open parens
      // mean that we should *not* include the ) in the bit that is considered
      // "after" the negated section.
      var openParensBefore = nlBefore.split('(').length - 1;
      var cleanAfter = nlAfter;
      for (i = 0; i < openParensBefore; i++) {
        cleanAfter = cleanAfter.replace(/\)[+*?]?/, '');
      }
      nlAfter = cleanAfter;

      var dollar = '';
      if (nlAfter === '' && isSub !== SUBPARSE) {
        dollar = '$';
      }
      var newRe = nlBefore + nlFirst + nlAfter + dollar + nlLast;
      re = newRe;
    }

    // if the re is not "" at this point, then we need to make sure
    // it doesn't match against an empty path part.
    // Otherwise a/* will match a/, which it should not.
    if (re !== '' && hasMagic) {
      re = '(?=.)' + re;
    }

    if (addPatternStart) {
      re = patternStart + re;
    }

    // parsing just a piece of a larger pattern.
    if (isSub === SUBPARSE) {
      return [re, hasMagic];
    }

    // skip the regexp for non-magical patterns
    // unescape anything in it, though, so that it'll be
    // an exact match against a file etc.
    if (!hasMagic) {
      return globUnescape(pattern);
    }

    var flags = options.nocase ? 'i' : '';
    try {
      var regExp = new RegExp('^' + re + '$', flags);
    } catch (er) {
      // If it was an invalid regular expression, then it can't match
      // anything.  This trick looks for a character after the end of
      // the string, which is of course impossible, except in multi-line
      // mode, but it's not a /m regex.
      return new RegExp('$.');
    }

    regExp._glob = pattern;
    regExp._src = re;

    return regExp;
  }

  minimatch.makeRe = function (pattern, options) {
    return new Minimatch(pattern, options || {}).makeRe();
  };

  Minimatch.prototype.makeRe = makeRe;
  function makeRe() {
    if (this.regexp || this.regexp === false) return this.regexp;

    // at this point, this.set is a 2d array of partial
    // pattern strings, or "**".
    //
    // It's better to use .match().  This function shouldn't
    // be used, really, but it's pretty convenient sometimes,
    // when you just want to work with a regex.
    var set = this.set;

    if (!set.length) {
      this.regexp = false;
      return this.regexp;
    }
    var options = this.options;

    var twoStar = options.noglobstar ? star : options.dot ? twoStarDot : twoStarNoDot;
    var flags = options.nocase ? 'i' : '';

    var re = set.map(function (pattern) {
      return pattern.map(function (p) {
        return p === GLOBSTAR ? twoStar : typeof p === 'string' ? regExpEscape(p) : p._src;
      }).join('\\\/');
    }).join('|');

    // must match entire pattern
    // ending in a * or ** will make it less strict.
    re = '^(?:' + re + ')$';

    // can match anything, as long as it's not this.
    if (this.negate) re = '^(?!' + re + ').*$';

    try {
      this.regexp = new RegExp(re, flags);
    } catch (ex) {
      this.regexp = false;
    }
    return this.regexp;
  }

  minimatch.match = function (list, pattern, options) {
    options = options || {};
    var mm = new Minimatch(pattern, options);
    list = list.filter(function (f) {
      return mm.match(f);
    });
    if (mm.options.nonull && !list.length) {
      list.push(pattern);
    }
    return list;
  };

  Minimatch.prototype.match = match;
  function match(f, partial) {
    this.debug('match', f, this.pattern);
    // short-circuit in the case of busted things.
    // comments, etc.
    if (this.comment) return false;
    if (this.empty) return f === '';

    if (f === '/' && partial) return true;

    var options = this.options;

    // windows: need to use /, not \
    if (path.sep !== '/') {
      f = f.split(path.sep).join('/');
    }

    // treat the test path as a set of pathparts.
    f = f.split(slashSplit);
    this.debug(this.pattern, 'split', f);

    // just ONE of the pattern sets in this.set needs to match
    // in order for it to be valid.  If negating, then just one
    // match means that we have failed.
    // Either way, return on the first hit.

    var set = this.set;
    this.debug(this.pattern, 'set', set);

    // Find the basename of the path by looking for the last non-empty segment
    var filename;
    var i;
    for (i = f.length - 1; i >= 0; i--) {
      filename = f[i];
      if (filename) break;
    }

    for (i = 0; i < set.length; i++) {
      var pattern = set[i];
      var file = f;
      if (options.matchBase && pattern.length === 1) {
        file = [filename];
      }
      var hit = this.matchOne(file, pattern, partial);
      if (hit) {
        if (options.flipNegate) return true;
        return !this.negate;
      }
    }

    // didn't get any hits.  this is success if it's a negative
    // pattern, failure otherwise.
    if (options.flipNegate) return false;
    return this.negate;
  }

  // set partial to true to test if, for example,
  // "/a/b" matches the start of "/*/b/*/d"
  // Partial means, if you run out of file before you run
  // out of pattern, then that's fine, as long as all
  // the parts match.
  Minimatch.prototype.matchOne = function (file, pattern, partial) {
    var options = this.options;

    this.debug('matchOne', { 'this': this, file: file, pattern: pattern });

    this.debug('matchOne', file.length, pattern.length);

    for (var fi = 0, pi = 0, fl = file.length, pl = pattern.length; fi < fl && pi < pl; fi++, pi++) {
      this.debug('matchOne loop');
      var p = pattern[pi];
      var f = file[fi];

      this.debug(pattern, p, f);

      // should be impossible.
      // some invalid regexp stuff in the set.
      if (p === false) return false;

      if (p === GLOBSTAR) {
        this.debug('GLOBSTAR', [pattern, p, f]);

        // "**"
        // a/**/b/**/c would match the following:
        // a/b/x/y/z/c
        // a/x/y/z/b/c
        // a/b/x/b/x/c
        // a/b/c
        // To do this, take the rest of the pattern after
        // the **, and see if it would match the file remainder.
        // If so, return success.
        // If not, the ** "swallows" a segment, and try again.
        // This is recursively awful.
        //
        // a/**/b/**/c matching a/b/x/y/z/c
        // - a matches a
        // - doublestar
        //   - matchOne(b/x/y/z/c, b/**/c)
        //     - b matches b
        //     - doublestar
        //       - matchOne(x/y/z/c, c) -> no
        //       - matchOne(y/z/c, c) -> no
        //       - matchOne(z/c, c) -> no
        //       - matchOne(c, c) yes, hit
        var fr = fi;
        var pr = pi + 1;
        if (pr === pl) {
          this.debug('** at the end');
          // a ** at the end will just swallow the rest.
          // We have found a match.
          // however, it will not swallow /.x, unless
          // options.dot is set.
          // . and .. are *never* matched by **, for explosively
          // exponential reasons.
          for (; fi < fl; fi++) {
            if (file[fi] === '.' || file[fi] === '..' || !options.dot && file[fi].charAt(0) === '.') return false;
          }
          return true;
        }

        // ok, let's see if we can swallow whatever we can.
        while (fr < fl) {
          var swallowee = file[fr];

          this.debug('\nglobstar while', file, fr, pattern, pr, swallowee);

          // XXX remove this slice.  Just pass the start index.
          if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) {
            this.debug('globstar found match!', fr, fl, swallowee);
            // found a match.
            return true;
          } else {
            // can't swallow "." or ".." ever.
            // can only swallow ".foo" when explicitly asked.
            if (swallowee === '.' || swallowee === '..' || !options.dot && swallowee.charAt(0) === '.') {
              this.debug('dot detected!', file, fr, pattern, pr);
              break;
            }

            // ** swallows a segment, and continue.
            this.debug('globstar swallow a segment, and continue');
            fr++;
          }
        }

        // no match was found.
        // However, in partial mode, we can't say this is necessarily over.
        // If there's more *pattern* left, then
        if (partial) {
          // ran out of file
          this.debug('\n>>> no match, partial?', file, fr, pattern, pr);
          if (fr === fl) return true;
        }
        return false;
      }

      // something other than **
      // non-magic patterns just have to match exactly
      // patterns with magic have been turned into regexps.
      var hit;
      if (typeof p === 'string') {
        if (options.nocase) {
          hit = f.toLowerCase() === p.toLowerCase();
        } else {
          hit = f === p;
        }
        this.debug('string match', p, f, hit);
      } else {
        hit = f.match(p);
        this.debug('pattern match', p, f, hit);
      }

      if (!hit) return false;
    }

    // Note: ending in / means that we'll get a final ""
    // at the end of the pattern.  This can only match a
    // corresponding "" at the end of the file.
    // If the file ends in /, then it can only match a
    // a pattern that ends in /, unless the pattern just
    // doesn't have any more for it. But, a/b/ should *not*
    // match "a/b/*", even though "" matches against the
    // [^/]*? pattern, except in partial mode, where it might
    // simply not be reached yet.
    // However, a/b/ should still satisfy a/*

    // now either we fell off the end of the pattern, or we're done.
    if (fi === fl && pi === pl) {
      // ran out of pattern and filename at the same time.
      // an exact hit!
      return true;
    } else if (fi === fl) {
      // ran out of file, but still had pattern left.
      // this is ok if we're doing the match as part of
      // a glob fs traversal.
      return partial;
    } else if (pi === pl) {
      // ran out of pattern, still have file left.
      // this is only acceptable if we're on the very last
      // empty segment of a file with a trailing slash.
      // a/* should match a/b/
      var emptyFileEnd = fi === fl - 1 && file[fi] === '';
      return emptyFileEnd;
    }

    // should be unreachable.
    throw new Error('wtf?');
  };

  // replace stuff like \* with *
  function globUnescape(s) {
    return s.replace(/\\(.)/g, '$1');
  }

  function regExpEscape(s) {
    return s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&');
  }
});
$__System.registerDynamic('a7', [], true, function ($__require, exports, module) {
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	module.exports = function (str) {
		var isExtendedLengthPath = /^\\\\\?\\/.test(str);
		var hasNonAscii = /[^\x00-\x80]+/.test(str);

		if (isExtendedLengthPath || hasNonAscii) {
			return str;
		}

		return str.replace(/\\/g, '/');
	};
});
$__System.registerDynamic("a8", ["17", "a9", "9e", "a1", "a6", "aa", "ab", "1a", "a7", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.inspect = exports.inherits = undefined;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _util = $__require("a9");

  Object.defineProperty(exports, "inherits", {
    enumerable: true,
    get: function get() {
      return _util.inherits;
    }
  });
  Object.defineProperty(exports, "inspect", {
    enumerable: true,
    get: function get() {
      return _util.inspect;
    }
  });
  exports.canCompile = canCompile;
  exports.list = list;
  exports.regexify = regexify;
  exports.arrayify = arrayify;
  exports.booleanify = booleanify;
  exports.shouldIgnore = shouldIgnore;

  var _escapeRegExp = $__require("9e");

  var _escapeRegExp2 = _interopRequireDefault(_escapeRegExp);

  var _startsWith = $__require("a1");

  var _startsWith2 = _interopRequireDefault(_startsWith);

  var _minimatch = $__require("a6");

  var _minimatch2 = _interopRequireDefault(_minimatch);

  var _includes = $__require("aa");

  var _includes2 = _interopRequireDefault(_includes);

  var _isRegExp = $__require("ab");

  var _isRegExp2 = _interopRequireDefault(_isRegExp);

  var _path = $__require("1a");

  var _path2 = _interopRequireDefault(_path);

  var _slash = $__require("a7");

  var _slash2 = _interopRequireDefault(_slash);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function canCompile(filename, altExts) {
    var exts = altExts || canCompile.EXTENSIONS;
    var ext = _path2.default.extname(filename);
    return (0, _includes2.default)(exts, ext);
  }

  canCompile.EXTENSIONS = [".js", ".jsx", ".es6", ".es"];

  function list(val) {
    if (!val) {
      return [];
    } else if (Array.isArray(val)) {
      return val;
    } else if (typeof val === "string") {
      return val.split(",");
    } else {
      return [val];
    }
  }

  function regexify(val) {
    if (!val) {
      return new RegExp(/.^/);
    }

    if (Array.isArray(val)) {
      val = new RegExp(val.map(_escapeRegExp2.default).join("|"), "i");
    }

    if (typeof val === "string") {
      val = (0, _slash2.default)(val);

      if ((0, _startsWith2.default)(val, "./") || (0, _startsWith2.default)(val, "*/")) val = val.slice(2);
      if ((0, _startsWith2.default)(val, "**/")) val = val.slice(3);

      var regex = _minimatch2.default.makeRe(val, { nocase: true });
      return new RegExp(regex.source.slice(1, -1), "i");
    }

    if ((0, _isRegExp2.default)(val)) {
      return val;
    }

    throw new TypeError("illegal type for regexify");
  }

  function arrayify(val, mapFn) {
    if (!val) return [];
    if (typeof val === "boolean") return arrayify([val], mapFn);
    if (typeof val === "string") return arrayify(list(val), mapFn);

    if (Array.isArray(val)) {
      if (mapFn) val = val.map(mapFn);
      return val;
    }

    return [val];
  }

  function booleanify(val) {
    if (val === "true" || val == 1) {
      return true;
    }

    if (val === "false" || val == 0 || !val) {
      return false;
    }

    return val;
  }

  function shouldIgnore(filename) {
    var ignore = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
    var only = arguments[2];

    filename = filename.replace(/\\/g, "/");

    if (only) {
      for (var _iterator = only, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var pattern = _ref;

        if (_shouldIgnore(pattern, filename)) return false;
      }
      return true;
    } else if (ignore.length) {
      for (var _iterator2 = ignore, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var _pattern = _ref2;

        if (_shouldIgnore(_pattern, filename)) return true;
      }
    }

    return false;
  }

  function _shouldIgnore(pattern, filename) {
    if (typeof pattern === "function") {
      return pattern(filename);
    } else {
      return pattern.test(filename);
    }
  }
});
$__System.registerDynamic("ac", ["a7", "a8", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.filename = undefined;
  exports.boolean = boolean;
  exports.booleanString = booleanString;
  exports.list = list;

  var _slash = $__require("a7");

  var _slash2 = _interopRequireDefault(_slash);

  var _util = $__require("a8");

  var util = _interopRequireWildcard(_util);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var filename = exports.filename = _slash2.default;

  function boolean(val) {
    return !!val;
  }

  function booleanString(val) {
    return util.booleanify(val);
  }

  function list(val) {
    return util.list(val);
  }
});
$__System.registerDynamic("ad", ["ac", "ae", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.config = undefined;
  exports.normaliseOptions = normaliseOptions;

  var _parsers = $__require("ac");

  var parsers = _interopRequireWildcard(_parsers);

  var _config = $__require("ae");

  var _config2 = _interopRequireDefault(_config);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  exports.config = _config2.default;
  function normaliseOptions() {
    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

    for (var key in options) {
      var val = options[key];
      if (val == null) continue;

      var opt = _config2.default[key];
      if (opt && opt.alias) opt = _config2.default[opt.alias];
      if (!opt) continue;

      var parser = parsers[opt.type];
      if (parser) val = parser(val);

      options[key] = val;
    }

    return options;
  }
});
$__System.registerDynamic("af", ["c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.default = getPossiblePluginNames;
  function getPossiblePluginNames(pluginName) {
    return ["babel-plugin-" + pluginName, pluginName];
  }
  module.exports = exports["default"];
});
$__System.registerDynamic("b0", ["b1", "af", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.default = resolvePlugin;

  var _resolveFromPossibleNames = $__require("b1");

  var _resolveFromPossibleNames2 = _interopRequireDefault(_resolveFromPossibleNames);

  var _getPossiblePluginNames = $__require("af");

  var _getPossiblePluginNames2 = _interopRequireDefault(_getPossiblePluginNames);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function resolvePlugin(pluginName) {
    var dirname = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : process.cwd();

    return (0, _resolveFromPossibleNames2.default)((0, _getPossiblePluginNames2.default)(pluginName), dirname);
  }
  module.exports = exports["default"];
});
$__System.registerDynamic("b1", ["b2", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.default = resolveFromPossibleNames;

  var _resolve = $__require("b2");

  var _resolve2 = _interopRequireDefault(_resolve);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function resolveFromPossibleNames(possibleNames, dirname) {
    return possibleNames.reduce(function (accum, curr) {
      return accum || (0, _resolve2.default)(curr, dirname);
    }, null);
  }
  module.exports = exports["default"];
});
$__System.registerDynamic("b3", ["c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.default = getPossiblePresetNames;
  function getPossiblePresetNames(presetName) {
    var possibleNames = ["babel-preset-" + presetName, presetName];

    var matches = presetName.match(/^(@[^/]+)\/(.+)$/);
    if (matches) {
      var orgName = matches[1],
          presetPath = matches[2];

      possibleNames.push(orgName + "/babel-preset-" + presetPath);
    }

    return possibleNames;
  }
  module.exports = exports["default"];
});
$__System.registerDynamic("b4", ["b1", "b3", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.default = resolvePreset;

  var _resolveFromPossibleNames = $__require("b1");

  var _resolveFromPossibleNames2 = _interopRequireDefault(_resolveFromPossibleNames);

  var _getPossiblePresetNames = $__require("b3");

  var _getPossiblePresetNames2 = _interopRequireDefault(_getPossiblePresetNames);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function resolvePreset(presetName) {
    var dirname = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : process.cwd();

    return (0, _resolveFromPossibleNames2.default)((0, _getPossiblePresetNames2.default)(presetName), dirname);
  }
  module.exports = exports["default"];
});
$__System.registerDynamic('b5', ['b6'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseClone = $__require('b6');

  /** Used to compose bitmasks for cloning. */
  var CLONE_DEEP_FLAG = 1,
      CLONE_SYMBOLS_FLAG = 4;

  /**
   * This method is like `_.cloneWith` except that it recursively clones `value`.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to recursively clone.
   * @param {Function} [customizer] The function to customize cloning.
   * @returns {*} Returns the deep cloned value.
   * @see _.cloneWith
   * @example
   *
   * function customizer(value) {
   *   if (_.isElement(value)) {
   *     return value.cloneNode(true);
   *   }
   * }
   *
   * var el = _.cloneDeepWith(document.body, customizer);
   *
   * console.log(el === document.body);
   * // => false
   * console.log(el.nodeName);
   * // => 'BODY'
   * console.log(el.childNodes.length);
   * // => 20
   */
  function cloneDeepWith(value, customizer) {
    customizer = typeof customizer == 'function' ? customizer : undefined;
    return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);
  }

  module.exports = cloneDeepWith;
});
$__System.registerDynamic("b7", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Creates a base function for methods like `_.forIn` and `_.forOwn`.
   *
   * @private
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {Function} Returns the new base function.
   */
  function createBaseFor(fromRight) {
    return function (object, iteratee, keysFunc) {
      var index = -1,
          iterable = Object(object),
          props = keysFunc(object),
          length = props.length;

      while (length--) {
        var key = props[fromRight ? length : ++index];
        if (iteratee(iterable[key], key, iterable) === false) {
          break;
        }
      }
      return object;
    };
  }

  module.exports = createBaseFor;
});
$__System.registerDynamic('8f', ['b7'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var createBaseFor = $__require('b7');

  /**
   * The base implementation of `baseForOwn` which iterates over `object`
   * properties returned by `keysFunc` and invokes `iteratee` for each property.
   * Iteratee functions may exit iteration early by explicitly returning `false`.
   *
   * @private
   * @param {Object} object The object to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {Function} keysFunc The function to get the keys of `object`.
   * @returns {Object} Returns `object`.
   */
  var baseFor = createBaseFor();

  module.exports = baseFor;
});
$__System.registerDynamic('b8', ['b9', '76'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseAssignValue = $__require('b9'),
      eq = $__require('76');

  /**
   * This function is like `assignValue` except that it doesn't assign
   * `undefined` values.
   *
   * @private
   * @param {Object} object The object to modify.
   * @param {string} key The key of the property to assign.
   * @param {*} value The value to assign.
   */
  function assignMergeValue(object, key, value) {
    if (value !== undefined && !eq(object[key], value) || value === undefined && !(key in object)) {
      baseAssignValue(object, key, value);
    }
  }

  module.exports = assignMergeValue;
});
$__System.registerDynamic('ba', ['41', '7f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isArrayLike = $__require('41'),
      isObjectLike = $__require('7f');

  /**
   * This method is like `_.isArrayLike` except that it also checks if `value`
   * is an object.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is an array-like object,
   *  else `false`.
   * @example
   *
   * _.isArrayLikeObject([1, 2, 3]);
   * // => true
   *
   * _.isArrayLikeObject(document.body.children);
   * // => true
   *
   * _.isArrayLikeObject('abc');
   * // => false
   *
   * _.isArrayLikeObject(_.noop);
   * // => false
   */
  function isArrayLikeObject(value) {
    return isObjectLike(value) && isArrayLike(value);
  }

  module.exports = isArrayLikeObject;
});
$__System.registerDynamic('bb', ['bc', 'bd'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var copyObject = $__require('bc'),
      keysIn = $__require('bd');

  /**
   * Converts `value` to a plain object flattening inherited enumerable string
   * keyed properties of `value` to own properties of the plain object.
   *
   * @static
   * @memberOf _
   * @since 3.0.0
   * @category Lang
   * @param {*} value The value to convert.
   * @returns {Object} Returns the converted plain object.
   * @example
   *
   * function Foo() {
   *   this.b = 2;
   * }
   *
   * Foo.prototype.c = 3;
   *
   * _.assign({ 'a': 1 }, new Foo);
   * // => { 'a': 1, 'b': 2 }
   *
   * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
   * // => { 'a': 1, 'b': 2, 'c': 3 }
   */
  function toPlainObject(value) {
    return copyObject(value, keysIn(value));
  }

  module.exports = toPlainObject;
});
$__System.registerDynamic('be', ['b8', 'bf', 'c0', 'c1', 'c2', '66', '50', 'ba', '7d', 'c3', '85', 'c4', '7e', 'bb'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var assignMergeValue = $__require('b8'),
      cloneBuffer = $__require('bf'),
      cloneTypedArray = $__require('c0'),
      copyArray = $__require('c1'),
      initCloneObject = $__require('c2'),
      isArguments = $__require('66'),
      isArray = $__require('50'),
      isArrayLikeObject = $__require('ba'),
      isBuffer = $__require('7d'),
      isFunction = $__require('c3'),
      isObject = $__require('85'),
      isPlainObject = $__require('c4'),
      isTypedArray = $__require('7e'),
      toPlainObject = $__require('bb');

  /**
   * A specialized version of `baseMerge` for arrays and objects which performs
   * deep merges and tracks traversed objects enabling objects with circular
   * references to be merged.
   *
   * @private
   * @param {Object} object The destination object.
   * @param {Object} source The source object.
   * @param {string} key The key of the value to merge.
   * @param {number} srcIndex The index of `source`.
   * @param {Function} mergeFunc The function to merge values.
   * @param {Function} [customizer] The function to customize assigned values.
   * @param {Object} [stack] Tracks traversed source values and their merged
   *  counterparts.
   */
  function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
    var objValue = object[key],
        srcValue = source[key],
        stacked = stack.get(srcValue);

    if (stacked) {
      assignMergeValue(object, key, stacked);
      return;
    }
    var newValue = customizer ? customizer(objValue, srcValue, key + '', object, source, stack) : undefined;

    var isCommon = newValue === undefined;

    if (isCommon) {
      var isArr = isArray(srcValue),
          isBuff = !isArr && isBuffer(srcValue),
          isTyped = !isArr && !isBuff && isTypedArray(srcValue);

      newValue = srcValue;
      if (isArr || isBuff || isTyped) {
        if (isArray(objValue)) {
          newValue = objValue;
        } else if (isArrayLikeObject(objValue)) {
          newValue = copyArray(objValue);
        } else if (isBuff) {
          isCommon = false;
          newValue = cloneBuffer(srcValue, true);
        } else if (isTyped) {
          isCommon = false;
          newValue = cloneTypedArray(srcValue, true);
        } else {
          newValue = [];
        }
      } else if (isPlainObject(srcValue) || isArguments(srcValue)) {
        newValue = objValue;
        if (isArguments(objValue)) {
          newValue = toPlainObject(objValue);
        } else if (!isObject(objValue) || srcIndex && isFunction(objValue)) {
          newValue = initCloneObject(srcValue);
        }
      } else {
        isCommon = false;
      }
    }
    if (isCommon) {
      // Recursively merge objects and arrays (susceptible to call stack limits).
      stack.set(srcValue, newValue);
      mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
      stack['delete'](srcValue);
    }
    assignMergeValue(object, key, newValue);
  }

  module.exports = baseMergeDeep;
});
$__System.registerDynamic('c5', ['6a', 'b8', '8f', 'be', '85', 'bd'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Stack = $__require('6a'),
      assignMergeValue = $__require('b8'),
      baseFor = $__require('8f'),
      baseMergeDeep = $__require('be'),
      isObject = $__require('85'),
      keysIn = $__require('bd');

  /**
   * The base implementation of `_.merge` without support for multiple sources.
   *
   * @private
   * @param {Object} object The destination object.
   * @param {Object} source The source object.
   * @param {number} srcIndex The index of `source`.
   * @param {Function} [customizer] The function to customize merged values.
   * @param {Object} [stack] Tracks traversed source values and their merged
   *  counterparts.
   */
  function baseMerge(object, source, srcIndex, customizer, stack) {
    if (object === source) {
      return;
    }
    baseFor(source, function (srcValue, key) {
      if (isObject(srcValue)) {
        stack || (stack = new Stack());
        baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
      } else {
        var newValue = customizer ? customizer(object[key], srcValue, key + '', object, source, stack) : undefined;

        if (newValue === undefined) {
          newValue = srcValue;
        }
        assignMergeValue(object, key, newValue);
      }
    }, keysIn);
  }

  module.exports = baseMerge;
});
$__System.registerDynamic('c6', ['c5', 'c7'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseMerge = $__require('c5'),
      createAssigner = $__require('c7');

  /**
   * This method is like `_.merge` except that it accepts `customizer` which
   * is invoked to produce the merged values of the destination and source
   * properties. If `customizer` returns `undefined`, merging is handled by the
   * method instead. The `customizer` is invoked with six arguments:
   * (objValue, srcValue, key, object, source, stack).
   *
   * **Note:** This method mutates `object`.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Object
   * @param {Object} object The destination object.
   * @param {...Object} sources The source objects.
   * @param {Function} customizer The function to customize assigned values.
   * @returns {Object} Returns `object`.
   * @example
   *
   * function customizer(objValue, srcValue) {
   *   if (_.isArray(objValue)) {
   *     return objValue.concat(srcValue);
   *   }
   * }
   *
   * var object = { 'a': [1], 'b': [2] };
   * var other = { 'a': [3], 'b': [4] };
   *
   * _.mergeWith(object, other, customizer);
   * // => { 'a': [1, 3], 'b': [2, 4] }
   */
  var mergeWith = createAssigner(function (object, source, srcIndex, customizer) {
    baseMerge(object, source, srcIndex, customizer);
  });

  module.exports = mergeWith;
});
$__System.registerDynamic("c8", ["17", "c6", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (dest, src) {
    if (!dest || !src) return;

    return (0, _mergeWith2.default)(dest, src, function (a, b) {
      if (b && Array.isArray(a)) {
        var newArray = b.slice(0);

        for (var _iterator = a, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
          var _ref;

          if (_isArray) {
            if (_i >= _iterator.length) break;
            _ref = _iterator[_i++];
          } else {
            _i = _iterator.next();
            if (_i.done) break;
            _ref = _i.value;
          }

          var item = _ref;

          if (newArray.indexOf(item) < 0) {
            newArray.push(item);
          }
        }

        return newArray;
      }
    });
  };

  var _mergeWith = $__require("c6");

  var _mergeWith2 = _interopRequireDefault(_mergeWith);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("ae", ["c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  module.exports = {
    filename: {
      type: "filename",
      description: "filename to use when reading from stdin - this will be used in source-maps, errors etc",
      default: "unknown",
      shorthand: "f"
    },

    filenameRelative: {
      hidden: true,
      type: "string"
    },

    inputSourceMap: {
      hidden: true
    },

    env: {
      hidden: true,
      default: {}
    },

    mode: {
      description: "",
      hidden: true
    },

    retainLines: {
      type: "boolean",
      default: false,
      description: "retain line numbers - will result in really ugly code"
    },

    highlightCode: {
      description: "enable/disable ANSI syntax highlighting of code frames (on by default)",
      type: "boolean",
      default: true
    },

    suppressDeprecationMessages: {
      type: "boolean",
      default: false,
      hidden: true
    },

    presets: {
      type: "list",
      description: "",
      default: []
    },

    plugins: {
      type: "list",
      default: [],
      description: ""
    },

    ignore: {
      type: "list",
      description: "list of glob paths to **not** compile",
      default: []
    },

    only: {
      type: "list",
      description: "list of glob paths to **only** compile"
    },

    code: {
      hidden: true,
      default: true,
      type: "boolean"
    },

    metadata: {
      hidden: true,
      default: true,
      type: "boolean"
    },

    ast: {
      hidden: true,
      default: true,
      type: "boolean"
    },

    extends: {
      type: "string",
      hidden: true
    },

    comments: {
      type: "boolean",
      default: true,
      description: "write comments to generated output (true by default)"
    },

    shouldPrintComment: {
      hidden: true,
      description: "optional callback to control whether a comment should be inserted, when this is used the comments option is ignored"
    },

    wrapPluginVisitorMethod: {
      hidden: true,
      description: "optional callback to wrap all visitor methods"
    },

    compact: {
      type: "booleanString",
      default: "auto",
      description: "do not include superfluous whitespace characters and line terminators [true|false|auto]"
    },

    minified: {
      type: "boolean",
      default: false,
      description: "save as much bytes when printing [true|false]"
    },

    sourceMap: {
      alias: "sourceMaps",
      hidden: true
    },

    sourceMaps: {
      type: "booleanString",
      description: "[true|false|inline]",
      default: false,
      shorthand: "s"
    },

    sourceMapTarget: {
      type: "string",
      description: "set `file` on returned source map"
    },

    sourceFileName: {
      type: "string",
      description: "set `sources[0]` on returned source map"
    },

    sourceRoot: {
      type: "filename",
      description: "the root from which all sources are relative"
    },

    babelrc: {
      description: "Whether or not to look up .babelrc and .babelignore files",
      type: "boolean",
      default: true
    },

    sourceType: {
      description: "",
      default: "module"
    },

    auxiliaryCommentBefore: {
      type: "string",
      description: "print a comment before any injected non-user code"
    },

    auxiliaryCommentAfter: {
      type: "string",
      description: "print a comment after any injected non-user code"
    },

    resolveModuleSource: {
      hidden: true
    },

    getModuleId: {
      hidden: true
    },

    moduleRoot: {
      type: "filename",
      description: "optional prefix for the AMD module formatter that will be prepend to the filename on module definitions"
    },

    moduleIds: {
      type: "boolean",
      default: false,
      shorthand: "M",
      description: "insert an explicit id for modules"
    },

    moduleId: {
      description: "specify a custom name for module ids",
      type: "string"
    },

    passPerPreset: {
      description: "Whether to spawn a traversal pass per a preset. By default all presets are merged.",
      type: "boolean",
      default: false,
      hidden: true
    },

    parserOpts: {
      description: "Options to pass into the parser, or to change parsers (parserOpts.parser)",
      default: false
    },

    generatorOpts: {
      description: "Options to pass into the generator, or to change generators (generatorOpts.generator)",
      default: false
    }
  };
});
$__System.registerDynamic("c9", ["c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  module.exports = {
    "auxiliaryComment": {
      "message": "Use `auxiliaryCommentBefore` or `auxiliaryCommentAfter`"
    },
    "blacklist": {
      "message": "Put the specific transforms you want in the `plugins` option"
    },
    "breakConfig": {
      "message": "This is not a necessary option in Babel 6"
    },
    "experimental": {
      "message": "Put the specific transforms you want in the `plugins` option"
    },
    "externalHelpers": {
      "message": "Use the `external-helpers` plugin instead. Check out http://babeljs.io/docs/plugins/external-helpers/"
    },
    "extra": {
      "message": ""
    },
    "jsxPragma": {
      "message": "use the `pragma` option in the `react-jsx` plugin . Check out http://babeljs.io/docs/plugins/transform-react-jsx/"
    },

    "loose": {
      "message": "Specify the `loose` option for the relevant plugin you are using or use a preset that sets the option."
    },
    "metadataUsedHelpers": {
      "message": "Not required anymore as this is enabled by default"
    },
    "modules": {
      "message": "Use the corresponding module transform plugin in the `plugins` option. Check out http://babeljs.io/docs/plugins/#modules"
    },
    "nonStandard": {
      "message": "Use the `react-jsx` and `flow-strip-types` plugins to support JSX and Flow. Also check out the react preset http://babeljs.io/docs/plugins/preset-react/"
    },
    "optional": {
      "message": "Put the specific transforms you want in the `plugins` option"
    },
    "sourceMapName": {
      "message": "Use the `sourceMapTarget` option"
    },
    "stage": {
      "message": "Check out the corresponding stage-x presets http://babeljs.io/docs/plugins/#presets"
    },
    "whitelist": {
      "message": "Put the specific transforms you want in the `plugins` option"
    }
  };
});
$__System.registerDynamic('ca', ['cb', 'cc', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 19.1.3.1 Object.assign(target, source)
  var $export = $__require('cb');

  $export($export.S + $export.F, 'Object', { assign: $__require('cc') });
});
$__System.registerDynamic('cd', ['ca', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('ca');
  module.exports = $__require('39').Object.assign;
});
$__System.registerDynamic("5f", ["cd"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("cd"), __esModule: true };
});
$__System.registerDynamic("b2", ["32", "@empty", "1a", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _typeof2 = $__require("32");

  var _typeof3 = _interopRequireDefault(_typeof2);

  exports.default = function (loc) {
    var relative = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : process.cwd();

    if ((typeof _module2.default === "undefined" ? "undefined" : (0, _typeof3.default)(_module2.default)) === "object") return null;

    var relativeMod = relativeModules[relative];

    if (!relativeMod) {
      relativeMod = new _module2.default();

      var filename = _path2.default.join(relative, ".babelrc");
      relativeMod.id = filename;
      relativeMod.filename = filename;

      relativeMod.paths = _module2.default._nodeModulePaths(relative);
      relativeModules[relative] = relativeMod;
    }

    try {
      return _module2.default._resolveFilename(loc, relativeMod);
    } catch (err) {
      return null;
    }
  };

  var _module = $__require("@empty");

  var _module2 = _interopRequireDefault(_module);

  var _path = $__require("1a");

  var _path2 = _interopRequireDefault(_path);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var relativeModules = {};

  module.exports = exports["default"];
});
$__System.registerDynamic("ce", [], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    // json5.js
    // Modern JSON. See README.md for details.
    //
    // This file is based directly off of Douglas Crockford's json_parse.js:
    // https://github.com/douglascrockford/JSON-js/blob/master/json_parse.js

    var JSON5 = typeof exports === 'object' ? exports : {};

    JSON5.parse = function () {
        "use strict";

        // This is a function that can parse a JSON5 text, producing a JavaScript
        // data structure. It is a simple, recursive descent parser. It does not use
        // eval or regular expressions, so it can be used as a model for implementing
        // a JSON5 parser in other languages.

        // We are defining the function inside of another function to avoid creating
        // global variables.

        var at,
            // The index of the current character
        lineNumber,
            // The current line number
        columnNumber,
            // The current column number
        ch,
            // The current character
        escapee = {
            "'": "'",
            '"': '"',
            '\\': '\\',
            '/': '/',
            '\n': '', // Replace escaped newlines in strings w/ empty string
            b: '\b',
            f: '\f',
            n: '\n',
            r: '\r',
            t: '\t'
        },
            ws = [' ', '\t', '\r', '\n', '\v', '\f', '\xA0', '\uFEFF'],
            text,
            renderChar = function (chr) {
            return chr === '' ? 'EOF' : "'" + chr + "'";
        },
            error = function (m) {

            // Call error when something is wrong.

            var error = new SyntaxError();
            // beginning of message suffix to agree with that provided by Gecko - see https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse
            error.message = m + " at line " + lineNumber + " column " + columnNumber + " of the JSON5 data. Still to read: " + JSON.stringify(text.substring(at - 1, at + 19));
            error.at = at;
            // These two property names have been chosen to agree with the ones in Gecko, the only popular
            // environment which seems to supply this info on JSON.parse
            error.lineNumber = lineNumber;
            error.columnNumber = columnNumber;
            throw error;
        },
            next = function (c) {

            // If a c parameter is provided, verify that it matches the current character.

            if (c && c !== ch) {
                error("Expected " + renderChar(c) + " instead of " + renderChar(ch));
            }

            // Get the next character. When there are no more characters,
            // return the empty string.

            ch = text.charAt(at);
            at++;
            columnNumber++;
            if (ch === '\n' || ch === '\r' && peek() !== '\n') {
                lineNumber++;
                columnNumber = 0;
            }
            return ch;
        },
            peek = function () {

            // Get the next character without consuming it or
            // assigning it to the ch varaible.

            return text.charAt(at);
        },
            identifier = function () {

            // Parse an identifier. Normally, reserved words are disallowed here, but we
            // only use this for unquoted object keys, where reserved words are allowed,
            // so we don't check for those here. References:
            // - http://es5.github.com/#x7.6
            // - https://developer.mozilla.org/en/Core_JavaScript_1.5_Guide/Core_Language_Features#Variables
            // - http://docstore.mik.ua/orelly/webprog/jscript/ch02_07.htm
            // TODO Identifiers can have Unicode "letters" in them; add support for those.

            var key = ch;

            // Identifiers must start with a letter, _ or $.
            if (ch !== '_' && ch !== '$' && (ch < 'a' || ch > 'z') && (ch < 'A' || ch > 'Z')) {
                error("Bad identifier as unquoted key");
            }

            // Subsequent characters can contain digits.
            while (next() && (ch === '_' || ch === '$' || ch >= 'a' && ch <= 'z' || ch >= 'A' && ch <= 'Z' || ch >= '0' && ch <= '9')) {
                key += ch;
            }

            return key;
        },
            number = function () {

            // Parse a number value.

            var number,
                sign = '',
                string = '',
                base = 10;

            if (ch === '-' || ch === '+') {
                sign = ch;
                next(ch);
            }

            // support for Infinity (could tweak to allow other words):
            if (ch === 'I') {
                number = word();
                if (typeof number !== 'number' || isNaN(number)) {
                    error('Unexpected word for number');
                }
                return sign === '-' ? -number : number;
            }

            // support for NaN
            if (ch === 'N') {
                number = word();
                if (!isNaN(number)) {
                    error('expected word to be NaN');
                }
                // ignore sign as -NaN also is NaN
                return number;
            }

            if (ch === '0') {
                string += ch;
                next();
                if (ch === 'x' || ch === 'X') {
                    string += ch;
                    next();
                    base = 16;
                } else if (ch >= '0' && ch <= '9') {
                    error('Octal literal');
                }
            }

            switch (base) {
                case 10:
                    while (ch >= '0' && ch <= '9') {
                        string += ch;
                        next();
                    }
                    if (ch === '.') {
                        string += '.';
                        while (next() && ch >= '0' && ch <= '9') {
                            string += ch;
                        }
                    }
                    if (ch === 'e' || ch === 'E') {
                        string += ch;
                        next();
                        if (ch === '-' || ch === '+') {
                            string += ch;
                            next();
                        }
                        while (ch >= '0' && ch <= '9') {
                            string += ch;
                            next();
                        }
                    }
                    break;
                case 16:
                    while (ch >= '0' && ch <= '9' || ch >= 'A' && ch <= 'F' || ch >= 'a' && ch <= 'f') {
                        string += ch;
                        next();
                    }
                    break;
            }

            if (sign === '-') {
                number = -string;
            } else {
                number = +string;
            }

            if (!isFinite(number)) {
                error("Bad number");
            } else {
                return number;
            }
        },
            string = function () {

            // Parse a string value.

            var hex,
                i,
                string = '',
                delim,
                // double quote or single quote
            uffff;

            // When parsing for string values, we must look for ' or " and \ characters.

            if (ch === '"' || ch === "'") {
                delim = ch;
                while (next()) {
                    if (ch === delim) {
                        next();
                        return string;
                    } else if (ch === '\\') {
                        next();
                        if (ch === 'u') {
                            uffff = 0;
                            for (i = 0; i < 4; i += 1) {
                                hex = parseInt(next(), 16);
                                if (!isFinite(hex)) {
                                    break;
                                }
                                uffff = uffff * 16 + hex;
                            }
                            string += String.fromCharCode(uffff);
                        } else if (ch === '\r') {
                            if (peek() === '\n') {
                                next();
                            }
                        } else if (typeof escapee[ch] === 'string') {
                            string += escapee[ch];
                        } else {
                            break;
                        }
                    } else if (ch === '\n') {
                        // unescaped newlines are invalid; see:
                        // https://github.com/aseemk/json5/issues/24
                        // TODO this feels special-cased; are there other
                        // invalid unescaped chars?
                        break;
                    } else {
                        string += ch;
                    }
                }
            }
            error("Bad string");
        },
            inlineComment = function () {

            // Skip an inline comment, assuming this is one. The current character should
            // be the second / character in the // pair that begins this inline comment.
            // To finish the inline comment, we look for a newline or the end of the text.

            if (ch !== '/') {
                error("Not an inline comment");
            }

            do {
                next();
                if (ch === '\n' || ch === '\r') {
                    next();
                    return;
                }
            } while (ch);
        },
            blockComment = function () {

            // Skip a block comment, assuming this is one. The current character should be
            // the * character in the /* pair that begins this block comment.
            // To finish the block comment, we look for an ending */ pair of characters,
            // but we also watch for the end of text before the comment is terminated.

            if (ch !== '*') {
                error("Not a block comment");
            }

            do {
                next();
                while (ch === '*') {
                    next('*');
                    if (ch === '/') {
                        next('/');
                        return;
                    }
                }
            } while (ch);

            error("Unterminated block comment");
        },
            comment = function () {

            // Skip a comment, whether inline or block-level, assuming this is one.
            // Comments always begin with a / character.

            if (ch !== '/') {
                error("Not a comment");
            }

            next('/');

            if (ch === '/') {
                inlineComment();
            } else if (ch === '*') {
                blockComment();
            } else {
                error("Unrecognized comment");
            }
        },
            white = function () {

            // Skip whitespace and comments.
            // Note that we're detecting comments by only a single / character.
            // This works since regular expressions are not valid JSON(5), but this will
            // break if there are other valid values that begin with a / character!

            while (ch) {
                if (ch === '/') {
                    comment();
                } else if (ws.indexOf(ch) >= 0) {
                    next();
                } else {
                    return;
                }
            }
        },
            word = function () {

            // true, false, or null.

            switch (ch) {
                case 't':
                    next('t');
                    next('r');
                    next('u');
                    next('e');
                    return true;
                case 'f':
                    next('f');
                    next('a');
                    next('l');
                    next('s');
                    next('e');
                    return false;
                case 'n':
                    next('n');
                    next('u');
                    next('l');
                    next('l');
                    return null;
                case 'I':
                    next('I');
                    next('n');
                    next('f');
                    next('i');
                    next('n');
                    next('i');
                    next('t');
                    next('y');
                    return Infinity;
                case 'N':
                    next('N');
                    next('a');
                    next('N');
                    return NaN;
            }
            error("Unexpected " + renderChar(ch));
        },
            value,
            // Place holder for the value function.

        array = function () {

            // Parse an array value.

            var array = [];

            if (ch === '[') {
                next('[');
                white();
                while (ch) {
                    if (ch === ']') {
                        next(']');
                        return array; // Potentially empty array
                    }
                    // ES5 allows omitting elements in arrays, e.g. [,] and
                    // [,null]. We don't allow this in JSON5.
                    if (ch === ',') {
                        error("Missing array element");
                    } else {
                        array.push(value());
                    }
                    white();
                    // If there's no comma after this value, this needs to
                    // be the end of the array.
                    if (ch !== ',') {
                        next(']');
                        return array;
                    }
                    next(',');
                    white();
                }
            }
            error("Bad array");
        },
            object = function () {

            // Parse an object value.

            var key,
                object = {};

            if (ch === '{') {
                next('{');
                white();
                while (ch) {
                    if (ch === '}') {
                        next('}');
                        return object; // Potentially empty object
                    }

                    // Keys can be unquoted. If they are, they need to be
                    // valid JS identifiers.
                    if (ch === '"' || ch === "'") {
                        key = string();
                    } else {
                        key = identifier();
                    }

                    white();
                    next(':');
                    object[key] = value();
                    white();
                    // If there's no comma after this pair, this needs to be
                    // the end of the object.
                    if (ch !== ',') {
                        next('}');
                        return object;
                    }
                    next(',');
                    white();
                }
            }
            error("Bad object");
        };

        value = function () {

            // Parse a JSON value. It could be an object, an array, a string, a number,
            // or a word.

            white();
            switch (ch) {
                case '{':
                    return object();
                case '[':
                    return array();
                case '"':
                case "'":
                    return string();
                case '-':
                case '+':
                case '.':
                    return number();
                default:
                    return ch >= '0' && ch <= '9' ? number() : word();
            }
        };

        // Return the json_parse function. It will have access to all of the above
        // functions and variables.

        return function (source, reviver) {
            var result;

            text = String(source);
            at = 0;
            lineNumber = 1;
            columnNumber = 1;
            ch = ' ';
            result = value();
            white();
            if (ch) {
                error("Syntax error");
            }

            // If there is a reviver function, we recursively walk the new structure,
            // passing each name/value pair to the reviver function for possible
            // transformation, starting with a temporary root object that holds the result
            // in an empty key. If there is not a reviver function, we simply return the
            // result.

            return typeof reviver === 'function' ? function walk(holder, key) {
                var k,
                    v,
                    value = holder[key];
                if (value && typeof value === 'object') {
                    for (k in value) {
                        if (Object.prototype.hasOwnProperty.call(value, k)) {
                            v = walk(value, k);
                            if (v !== undefined) {
                                value[k] = v;
                            } else {
                                delete value[k];
                            }
                        }
                    }
                }
                return reviver.call(holder, key, value);
            }({ '': result }, '') : result;
        };
    }();

    // JSON5 stringify will not quote keys where appropriate
    JSON5.stringify = function (obj, replacer, space) {
        if (replacer && typeof replacer !== "function" && !isArray(replacer)) {
            throw new Error('Replacer must be a function or an array');
        }
        var getReplacedValueOrUndefined = function (holder, key, isTopLevel) {
            var value = holder[key];

            // Replace the value with its toJSON value first, if possible
            if (value && value.toJSON && typeof value.toJSON === "function") {
                value = value.toJSON();
            }

            // If the user-supplied replacer if a function, call it. If it's an array, check objects' string keys for
            // presence in the array (removing the key/value pair from the resulting JSON if the key is missing).
            if (typeof replacer === "function") {
                return replacer.call(holder, key, value);
            } else if (replacer) {
                if (isTopLevel || isArray(holder) || replacer.indexOf(key) >= 0) {
                    return value;
                } else {
                    return undefined;
                }
            } else {
                return value;
            }
        };

        function isWordChar(c) {
            return c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || c === '_' || c === '$';
        }

        function isWordStart(c) {
            return c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c === '_' || c === '$';
        }

        function isWord(key) {
            if (typeof key !== 'string') {
                return false;
            }
            if (!isWordStart(key[0])) {
                return false;
            }
            var i = 1,
                length = key.length;
            while (i < length) {
                if (!isWordChar(key[i])) {
                    return false;
                }
                i++;
            }
            return true;
        }

        // export for use in tests
        JSON5.isWord = isWord;

        // polyfills
        function isArray(obj) {
            if (Array.isArray) {
                return Array.isArray(obj);
            } else {
                return Object.prototype.toString.call(obj) === '[object Array]';
            }
        }

        function isDate(obj) {
            return Object.prototype.toString.call(obj) === '[object Date]';
        }

        var objStack = [];
        function checkForCircular(obj) {
            for (var i = 0; i < objStack.length; i++) {
                if (objStack[i] === obj) {
                    throw new TypeError("Converting circular structure to JSON");
                }
            }
        }

        function makeIndent(str, num, noNewLine) {
            if (!str) {
                return "";
            }
            // indentation no more than 10 chars
            if (str.length > 10) {
                str = str.substring(0, 10);
            }

            var indent = noNewLine ? "" : "\n";
            for (var i = 0; i < num; i++) {
                indent += str;
            }

            return indent;
        }

        var indentStr;
        if (space) {
            if (typeof space === "string") {
                indentStr = space;
            } else if (typeof space === "number" && space >= 0) {
                indentStr = makeIndent(" ", space, true);
            } else {
                // ignore space parameter
            }
        }

        // Copied from Crokford's implementation of JSON
        // See https://github.com/douglascrockford/JSON-js/blob/e39db4b7e6249f04a195e7dd0840e610cc9e941e/json2.js#L195
        // Begin
        var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
            escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
            meta = { // table of character substitutions
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"': '\\"',
            '\\': '\\\\'
        };
        function escapeString(string) {

            // If the string contains no control characters, no quote characters, and no
            // backslash characters, then we can safely slap some quotes around it.
            // Otherwise we must also replace the offending characters with safe escape
            // sequences.
            escapable.lastIndex = 0;
            return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
                var c = meta[a];
                return typeof c === 'string' ? c : '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
            }) + '"' : '"' + string + '"';
        }
        // End

        function internalStringify(holder, key, isTopLevel) {
            var buffer, res;

            // Replace the value, if necessary
            var obj_part = getReplacedValueOrUndefined(holder, key, isTopLevel);

            if (obj_part && !isDate(obj_part)) {
                // unbox objects
                // don't unbox dates, since will turn it into number
                obj_part = obj_part.valueOf();
            }
            switch (typeof obj_part) {
                case "boolean":
                    return obj_part.toString();

                case "number":
                    if (isNaN(obj_part) || !isFinite(obj_part)) {
                        return "null";
                    }
                    return obj_part.toString();

                case "string":
                    return escapeString(obj_part.toString());

                case "object":
                    if (obj_part === null) {
                        return "null";
                    } else if (isArray(obj_part)) {
                        checkForCircular(obj_part);
                        buffer = "[";
                        objStack.push(obj_part);

                        for (var i = 0; i < obj_part.length; i++) {
                            res = internalStringify(obj_part, i, false);
                            buffer += makeIndent(indentStr, objStack.length);
                            if (res === null || typeof res === "undefined") {
                                buffer += "null";
                            } else {
                                buffer += res;
                            }
                            if (i < obj_part.length - 1) {
                                buffer += ",";
                            } else if (indentStr) {
                                buffer += "\n";
                            }
                        }
                        objStack.pop();
                        if (obj_part.length) {
                            buffer += makeIndent(indentStr, objStack.length, true);
                        }
                        buffer += "]";
                    } else {
                        checkForCircular(obj_part);
                        buffer = "{";
                        var nonEmpty = false;
                        objStack.push(obj_part);
                        for (var prop in obj_part) {
                            if (obj_part.hasOwnProperty(prop)) {
                                var value = internalStringify(obj_part, prop, false);
                                isTopLevel = false;
                                if (typeof value !== "undefined" && value !== null) {
                                    buffer += makeIndent(indentStr, objStack.length);
                                    nonEmpty = true;
                                    key = isWord(prop) ? prop : escapeString(prop);
                                    buffer += key + ":" + (indentStr ? ' ' : '') + value + ",";
                                }
                            }
                        }
                        objStack.pop();
                        if (nonEmpty) {
                            buffer = buffer.substring(0, buffer.length - 1) + makeIndent(indentStr, objStack.length) + "}";
                        } else {
                            buffer = '{}';
                        }
                    }
                    return buffer;
                default:
                    // functions and undefined should be ignored
                    return undefined;
            }
        }

        // special case...when undefined is used inside of
        // a compound object/array, return null.
        // but when top-level, return undefined
        var topLevelHolder = { "": obj };
        if (obj === undefined) {
            return getReplacedValueOrUndefined(topLevelHolder, '', true);
        }
        return internalStringify(topLevelHolder, '', true);
    };
});
$__System.registerDynamic('cf', ['c'], true, function ($__require, exports, module) {
	'use strict';

	var process = $__require('c');
	var global = this || self,
	    GLOBAL = global;
	function posix(path) {
		return path.charAt(0) === '/';
	}

	function win32(path) {
		// https://github.com/nodejs/node/blob/b3fcc245fb25539909ef1d5eaa01dbf92e168633/lib/path.js#L56
		var splitDeviceRe = /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;
		var result = splitDeviceRe.exec(path);
		var device = result[1] || '';
		var isUnc = Boolean(device && device.charAt(1) !== ':');

		// UNC paths are always absolute
		return Boolean(result[2] || isUnc);
	}

	module.exports = process.platform === 'win32' ? win32 : posix;
	module.exports.posix = posix;
	module.exports.win32 = win32;
});
$__System.registerDynamic('19', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  exports.readFileSync = function (address) {
    var output;
    var xhr = new XMLHttpRequest();
    xhr.open('GET', address, false);
    xhr.onreadystatechange = function (e) {
      if (xhr.readyState == 4) {
        var status = xhr.status;
        if (status > 399 && status < 600 || status == 400) {
          throw 'File read error on ' + xhr.responseURL;
        } else output = xhr.responseText;
      }
    };
    xhr.send(null);
    return output;
  };
});
$__System.registerDynamic("d0", ["5f", "1f", "b2", "ce", "cf", "1a", "19", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _assign = $__require("5f");

  var _assign2 = _interopRequireDefault(_assign);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  exports.default = buildConfigChain;

  var _resolve = $__require("b2");

  var _resolve2 = _interopRequireDefault(_resolve);

  var _json = $__require("ce");

  var _json2 = _interopRequireDefault(_json);

  var _pathIsAbsolute = $__require("cf");

  var _pathIsAbsolute2 = _interopRequireDefault(_pathIsAbsolute);

  var _path = $__require("1a");

  var _path2 = _interopRequireDefault(_path);

  var _fs = $__require("19");

  var _fs2 = _interopRequireDefault(_fs);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var existsCache = {};
  var jsonCache = {};

  var BABELIGNORE_FILENAME = ".babelignore";
  var BABELRC_FILENAME = ".babelrc";
  var PACKAGE_FILENAME = "package.json";

  function exists(filename) {
    var cached = existsCache[filename];
    if (cached == null) {
      return existsCache[filename] = _fs2.default.existsSync(filename);
    } else {
      return cached;
    }
  }

  function buildConfigChain() {
    var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var log = arguments[1];

    var filename = opts.filename;
    var builder = new ConfigChainBuilder(log);

    if (opts.babelrc !== false) {
      builder.findConfigs(filename);
    }

    builder.mergeConfig({
      options: opts,
      alias: "base",
      dirname: filename && _path2.default.dirname(filename)
    });

    return builder.configs;
  }

  var ConfigChainBuilder = function () {
    function ConfigChainBuilder(log) {
      (0, _classCallCheck3.default)(this, ConfigChainBuilder);

      this.resolvedConfigs = [];
      this.configs = [];
      this.log = log;
    }

    ConfigChainBuilder.prototype.findConfigs = function findConfigs(loc) {
      if (!loc) return;

      if (!(0, _pathIsAbsolute2.default)(loc)) {
        loc = _path2.default.join(process.cwd(), loc);
      }

      var foundConfig = false;
      var foundIgnore = false;

      while (loc !== (loc = _path2.default.dirname(loc))) {
        if (!foundConfig) {
          var configLoc = _path2.default.join(loc, BABELRC_FILENAME);
          if (exists(configLoc)) {
            this.addConfig(configLoc);
            foundConfig = true;
          }

          var pkgLoc = _path2.default.join(loc, PACKAGE_FILENAME);
          if (!foundConfig && exists(pkgLoc)) {
            foundConfig = this.addConfig(pkgLoc, "babel", JSON);
          }
        }

        if (!foundIgnore) {
          var ignoreLoc = _path2.default.join(loc, BABELIGNORE_FILENAME);
          if (exists(ignoreLoc)) {
            this.addIgnoreConfig(ignoreLoc);
            foundIgnore = true;
          }
        }

        if (foundIgnore && foundConfig) return;
      }
    };

    ConfigChainBuilder.prototype.addIgnoreConfig = function addIgnoreConfig(loc) {
      var file = _fs2.default.readFileSync(loc, "utf8");
      var lines = file.split("\n");

      lines = lines.map(function (line) {
        return line.replace(/#(.*?)$/, "").trim();
      }).filter(function (line) {
        return !!line;
      });

      if (lines.length) {
        this.mergeConfig({
          options: { ignore: lines },
          alias: loc,
          dirname: _path2.default.dirname(loc)
        });
      }
    };

    ConfigChainBuilder.prototype.addConfig = function addConfig(loc, key) {
      var json = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : _json2.default;

      if (this.resolvedConfigs.indexOf(loc) >= 0) {
        return false;
      }

      this.resolvedConfigs.push(loc);

      var content = _fs2.default.readFileSync(loc, "utf8");
      var options = void 0;

      try {
        options = jsonCache[content] = jsonCache[content] || json.parse(content);
        if (key) options = options[key];
      } catch (err) {
        err.message = loc + ": Error while parsing JSON - " + err.message;
        throw err;
      }

      this.mergeConfig({
        options: options,
        alias: loc,
        dirname: _path2.default.dirname(loc)
      });

      return !!options;
    };

    ConfigChainBuilder.prototype.mergeConfig = function mergeConfig(_ref) {
      var options = _ref.options,
          alias = _ref.alias,
          loc = _ref.loc,
          dirname = _ref.dirname;

      if (!options) {
        return false;
      }

      options = (0, _assign2.default)({}, options);

      dirname = dirname || process.cwd();
      loc = loc || alias;

      if (options.extends) {
        var extendsLoc = (0, _resolve2.default)(options.extends, dirname);
        if (extendsLoc) {
          this.addConfig(extendsLoc);
        } else {
          if (this.log) this.log.error("Couldn't resolve extends clause of " + options.extends + " in " + alias);
        }
        delete options.extends;
      }

      this.configs.push({
        options: options,
        alias: alias,
        loc: loc,
        dirname: dirname
      });

      var envOpts = void 0;
      var envKey = process.env.BABEL_ENV || "production" || "development";
      if (options.env) {
        envOpts = options.env[envKey];
        delete options.env;
      }

      this.mergeConfig({
        options: envOpts,
        alias: alias + ".env." + envKey,
        dirname: dirname
      });
    };

    return ConfigChainBuilder;
  }();

  module.exports = exports["default"];
});
$__System.registerDynamic("d1", ["9d", "60", "5f", "17", "32", "1f", "d2", "9c", "f", "ad", "b0", "b4", "b5", "d3", "c8", "ae", "c9", "d0", "1a", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _objectWithoutProperties2 = $__require("9d");

  var _objectWithoutProperties3 = _interopRequireDefault(_objectWithoutProperties2);

  var _stringify = $__require("60");

  var _stringify2 = _interopRequireDefault(_stringify);

  var _assign = $__require("5f");

  var _assign2 = _interopRequireDefault(_assign);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _typeof2 = $__require("32");

  var _typeof3 = _interopRequireDefault(_typeof2);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _node = $__require("d2");

  var context = _interopRequireWildcard(_node);

  var _plugin2 = $__require("9c");

  var _plugin3 = _interopRequireDefault(_plugin2);

  var _babelMessages = $__require("f");

  var messages = _interopRequireWildcard(_babelMessages);

  var _index = $__require("ad");

  var _resolvePlugin = $__require("b0");

  var _resolvePlugin2 = _interopRequireDefault(_resolvePlugin);

  var _resolvePreset = $__require("b4");

  var _resolvePreset2 = _interopRequireDefault(_resolvePreset);

  var _cloneDeepWith = $__require("b5");

  var _cloneDeepWith2 = _interopRequireDefault(_cloneDeepWith);

  var _clone = $__require("d3");

  var _clone2 = _interopRequireDefault(_clone);

  var _merge = $__require("c8");

  var _merge2 = _interopRequireDefault(_merge);

  var _config2 = $__require("ae");

  var _config3 = _interopRequireDefault(_config2);

  var _removed = $__require("c9");

  var _removed2 = _interopRequireDefault(_removed);

  var _buildConfigChain = $__require("d0");

  var _buildConfigChain2 = _interopRequireDefault(_buildConfigChain);

  var _path = $__require("1a");

  var _path2 = _interopRequireDefault(_path);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var OptionManager = function () {
    function OptionManager(log) {
      (0, _classCallCheck3.default)(this, OptionManager);

      this.resolvedConfigs = [];
      this.options = OptionManager.createBareOptions();
      this.log = log;
    }

    OptionManager.memoisePluginContainer = function memoisePluginContainer(fn, loc, i, alias) {
      for (var _iterator = OptionManager.memoisedPlugins, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var cache = _ref;

        if (cache.container === fn) return cache.plugin;
      }

      var obj = void 0;

      if (typeof fn === "function") {
        obj = fn(context);
      } else {
        obj = fn;
      }

      if ((typeof obj === "undefined" ? "undefined" : (0, _typeof3.default)(obj)) === "object") {
        var _plugin = new _plugin3.default(obj, alias);
        OptionManager.memoisedPlugins.push({
          container: fn,
          plugin: _plugin
        });
        return _plugin;
      } else {
        throw new TypeError(messages.get("pluginNotObject", loc, i, typeof obj === "undefined" ? "undefined" : (0, _typeof3.default)(obj)) + loc + i);
      }
    };

    OptionManager.createBareOptions = function createBareOptions() {
      var opts = {};

      for (var _key in _config3.default) {
        var opt = _config3.default[_key];
        opts[_key] = (0, _clone2.default)(opt.default);
      }

      return opts;
    };

    OptionManager.normalisePlugin = function normalisePlugin(plugin, loc, i, alias) {
      plugin = plugin.__esModule ? plugin.default : plugin;

      if (!(plugin instanceof _plugin3.default)) {
        if (typeof plugin === "function" || (typeof plugin === "undefined" ? "undefined" : (0, _typeof3.default)(plugin)) === "object") {
          plugin = OptionManager.memoisePluginContainer(plugin, loc, i, alias);
        } else {
          throw new TypeError(messages.get("pluginNotFunction", loc, i, typeof plugin === "undefined" ? "undefined" : (0, _typeof3.default)(plugin)));
        }
      }

      plugin.init(loc, i);

      return plugin;
    };

    OptionManager.normalisePlugins = function normalisePlugins(loc, dirname, plugins) {
      return plugins.map(function (val, i) {
        var plugin = void 0,
            options = void 0;

        if (!val) {
          throw new TypeError("Falsy value found in plugins");
        }

        if (Array.isArray(val)) {
          plugin = val[0];
          options = val[1];
        } else {
          plugin = val;
        }

        var alias = typeof plugin === "string" ? plugin : loc + "$" + i;

        if (typeof plugin === "string") {
          var pluginLoc = (0, _resolvePlugin2.default)(plugin, dirname);
          if (pluginLoc) {
            plugin = $__require(pluginLoc);
          } else {
            throw new ReferenceError(messages.get("pluginUnknown", plugin, loc, i, dirname));
          }
        }

        plugin = OptionManager.normalisePlugin(plugin, loc, i, alias);

        return [plugin, options];
      });
    };

    OptionManager.prototype.mergeOptions = function mergeOptions(_ref2) {
      var _this = this;

      var rawOpts = _ref2.options,
          extendingOpts = _ref2.extending,
          alias = _ref2.alias,
          loc = _ref2.loc,
          dirname = _ref2.dirname;

      alias = alias || "foreign";
      if (!rawOpts) return;

      if ((typeof rawOpts === "undefined" ? "undefined" : (0, _typeof3.default)(rawOpts)) !== "object" || Array.isArray(rawOpts)) {
        this.log.error("Invalid options type for " + alias, TypeError);
      }

      var opts = (0, _cloneDeepWith2.default)(rawOpts, function (val) {
        if (val instanceof _plugin3.default) {
          return val;
        }
      });

      dirname = dirname || process.cwd();
      loc = loc || alias;

      for (var _key2 in opts) {
        var option = _config3.default[_key2];

        if (!option && this.log) {
          if (_removed2.default[_key2]) {
            this.log.error("Using removed Babel 5 option: " + alias + "." + _key2 + " - " + _removed2.default[_key2].message, ReferenceError);
          } else {
            var unknownOptErr = "Unknown option: " + alias + "." + _key2 + ". Check out http://babeljs.io/docs/usage/options/ for more information about options.";
            var presetConfigErr = "A common cause of this error is the presence of a configuration options object without the corresponding preset name. Example:\n\nInvalid:\n  `{ presets: [{option: value}] }`\nValid:\n  `{ presets: [['presetName', {option: value}]] }`\n\nFor more detailed information on preset configuration, please see http://babeljs.io/docs/plugins/#pluginpresets-options.";

            this.log.error(unknownOptErr + "\n\n" + presetConfigErr, ReferenceError);
          }
        }
      }

      (0, _index.normaliseOptions)(opts);

      if (opts.plugins) {
        opts.plugins = OptionManager.normalisePlugins(loc, dirname, opts.plugins);
      }

      if (opts.presets) {
        if (opts.passPerPreset) {
          opts.presets = this.resolvePresets(opts.presets, dirname, function (preset, presetLoc) {
            _this.mergeOptions({
              options: preset,
              extending: preset,
              alias: presetLoc,
              loc: presetLoc,
              dirname: dirname
            });
          });
        } else {
          this.mergePresets(opts.presets, dirname);
          delete opts.presets;
        }
      }

      if (rawOpts === extendingOpts) {
        (0, _assign2.default)(extendingOpts, opts);
      } else {
        (0, _merge2.default)(extendingOpts || this.options, opts);
      }
    };

    OptionManager.prototype.mergePresets = function mergePresets(presets, dirname) {
      var _this2 = this;

      this.resolvePresets(presets, dirname, function (presetOpts, presetLoc) {
        _this2.mergeOptions({
          options: presetOpts,
          alias: presetLoc,
          loc: presetLoc,
          dirname: _path2.default.dirname(presetLoc || "")
        });
      });
    };

    OptionManager.prototype.resolvePresets = function resolvePresets(presets, dirname, onResolve) {
      return presets.map(function (val) {
        var options = void 0;
        if (Array.isArray(val)) {
          if (val.length > 2) {
            throw new Error("Unexpected extra options " + (0, _stringify2.default)(val.slice(2)) + " passed to preset.");
          }

          var _val = val;
          val = _val[0];
          options = _val[1];
        }

        var presetLoc = void 0;
        try {
          if (typeof val === "string") {
            presetLoc = (0, _resolvePreset2.default)(val, dirname);

            if (!presetLoc) {
              throw new Error("Couldn't find preset " + (0, _stringify2.default)(val) + " relative to directory " + (0, _stringify2.default)(dirname));
            }

            val = $__require(presetLoc);
          }

          if ((typeof val === "undefined" ? "undefined" : (0, _typeof3.default)(val)) === "object" && val.__esModule) {
            if (val.default) {
              val = val.default;
            } else {
              var _val2 = val,
                  __esModule = _val2.__esModule,
                  rest = (0, _objectWithoutProperties3.default)(_val2, ["__esModule"]);

              val = rest;
            }
          }

          if ((typeof val === "undefined" ? "undefined" : (0, _typeof3.default)(val)) === "object" && val.buildPreset) val = val.buildPreset;

          if (typeof val !== "function" && options !== undefined) {
            throw new Error("Options " + (0, _stringify2.default)(options) + " passed to " + (presetLoc || "a preset") + " which does not accept options.");
          }

          if (typeof val === "function") val = val(context, options, { dirname: dirname });

          if ((typeof val === "undefined" ? "undefined" : (0, _typeof3.default)(val)) !== "object") {
            throw new Error("Unsupported preset format: " + val + ".");
          }

          onResolve && onResolve(val, presetLoc);
        } catch (e) {
          if (presetLoc) {
            e.message += " (While processing preset: " + (0, _stringify2.default)(presetLoc) + ")";
          }
          throw e;
        }
        return val;
      });
    };

    OptionManager.prototype.normaliseOptions = function normaliseOptions() {
      var opts = this.options;

      for (var _key3 in _config3.default) {
        var option = _config3.default[_key3];
        var val = opts[_key3];

        if (!val && option.optional) continue;

        if (option.alias) {
          opts[option.alias] = opts[option.alias] || val;
        } else {
          opts[_key3] = val;
        }
      }
    };

    OptionManager.prototype.init = function init() {
      var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      for (var _iterator2 = (0, _buildConfigChain2.default)(opts, this.log), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref3;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref3 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref3 = _i2.value;
        }

        var _config = _ref3;

        this.mergeOptions(_config);
      }

      this.normaliseOptions(opts);

      return this.options;
    };

    return OptionManager;
  }();

  exports.default = OptionManager;

  OptionManager.memoisedPlugins = [];
  module.exports = exports["default"];
});
$__System.registerDynamic("1d", ["d4", "1f", "20", "21", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _map = $__require("d4");

  var _map2 = _interopRequireDefault(_map);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _possibleConstructorReturn2 = $__require("20");

  var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

  var _inherits2 = $__require("21");

  var _inherits3 = _interopRequireDefault(_inherits2);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var Store = function (_Map) {
    (0, _inherits3.default)(Store, _Map);

    function Store() {
      (0, _classCallCheck3.default)(this, Store);

      var _this = (0, _possibleConstructorReturn3.default)(this, _Map.call(this));

      _this.dynamicData = {};
      return _this;
    }

    Store.prototype.setDynamic = function setDynamic(key, fn) {
      this.dynamicData[key] = fn;
    };

    Store.prototype.get = function get(key) {
      if (this.has(key)) {
        return _Map.prototype.get.call(this, key);
      } else {
        if (Object.prototype.hasOwnProperty.call(this.dynamicData, key)) {
          var val = this.dynamicData[key]();
          this.set(key, val);
          return val;
        }
      }
    };

    return Store;
  }(_map2.default);

  exports.default = Store;
  module.exports = exports["default"];
});
$__System.registerDynamic("9c", ["17", "1f", "20", "21", "d1", "f", "1d", "d5", "d6", "d3", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _possibleConstructorReturn2 = $__require("20");

  var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

  var _inherits2 = $__require("21");

  var _inherits3 = _interopRequireDefault(_inherits2);

  var _optionManager = $__require("d1");

  var _optionManager2 = _interopRequireDefault(_optionManager);

  var _babelMessages = $__require("f");

  var messages = _interopRequireWildcard(_babelMessages);

  var _store = $__require("1d");

  var _store2 = _interopRequireDefault(_store);

  var _babelTraverse = $__require("d5");

  var _babelTraverse2 = _interopRequireDefault(_babelTraverse);

  var _assign = $__require("d6");

  var _assign2 = _interopRequireDefault(_assign);

  var _clone = $__require("d3");

  var _clone2 = _interopRequireDefault(_clone);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var GLOBAL_VISITOR_PROPS = ["enter", "exit"];

  var Plugin = function (_Store) {
    (0, _inherits3.default)(Plugin, _Store);

    function Plugin(plugin, key) {
      (0, _classCallCheck3.default)(this, Plugin);

      var _this = (0, _possibleConstructorReturn3.default)(this, _Store.call(this));

      _this.initialized = false;
      _this.raw = (0, _assign2.default)({}, plugin);
      _this.key = _this.take("name") || key;

      _this.manipulateOptions = _this.take("manipulateOptions");
      _this.post = _this.take("post");
      _this.pre = _this.take("pre");
      _this.visitor = _this.normaliseVisitor((0, _clone2.default)(_this.take("visitor")) || {});
      return _this;
    }

    Plugin.prototype.take = function take(key) {
      var val = this.raw[key];
      delete this.raw[key];
      return val;
    };

    Plugin.prototype.chain = function chain(target, key) {
      if (!target[key]) return this[key];
      if (!this[key]) return target[key];

      var fns = [target[key], this[key]];

      return function () {
        var val = void 0;

        for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
          args[_key] = arguments[_key];
        }

        for (var _iterator = fns, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
          var _ref;

          if (_isArray) {
            if (_i >= _iterator.length) break;
            _ref = _iterator[_i++];
          } else {
            _i = _iterator.next();
            if (_i.done) break;
            _ref = _i.value;
          }

          var fn = _ref;

          if (fn) {
            var ret = fn.apply(this, args);
            if (ret != null) val = ret;
          }
        }
        return val;
      };
    };

    Plugin.prototype.maybeInherit = function maybeInherit(loc) {
      var inherits = this.take("inherits");
      if (!inherits) return;

      inherits = _optionManager2.default.normalisePlugin(inherits, loc, "inherits");

      this.manipulateOptions = this.chain(inherits, "manipulateOptions");
      this.post = this.chain(inherits, "post");
      this.pre = this.chain(inherits, "pre");
      this.visitor = _babelTraverse2.default.visitors.merge([inherits.visitor, this.visitor]);
    };

    Plugin.prototype.init = function init(loc, i) {
      if (this.initialized) return;
      this.initialized = true;

      this.maybeInherit(loc);

      for (var key in this.raw) {
        throw new Error(messages.get("pluginInvalidProperty", loc, i, key));
      }
    };

    Plugin.prototype.normaliseVisitor = function normaliseVisitor(visitor) {
      for (var _iterator2 = GLOBAL_VISITOR_PROPS, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var key = _ref2;

        if (visitor[key]) {
          throw new Error("Plugins aren't allowed to specify catch-all enter/exit handlers. " + "Please target individual nodes.");
        }
      }

      _babelTraverse2.default.explode(visitor);
      return visitor;
    };

    return Plugin;
  }(_store2.default);

  exports.default = Plugin;
  module.exports = exports["default"];
});
$__System.registerDynamic("d7", ["d8", "9c", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _symbol = $__require("d8");

  var _symbol2 = _interopRequireDefault(_symbol);

  var _plugin = $__require("9c");

  var _plugin2 = _interopRequireDefault(_plugin);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var SUPER_THIS_BOUND = (0, _symbol2.default)("super this bound");

  var superVisitor = {
    CallExpression: function CallExpression(path) {
      if (!path.get("callee").isSuper()) return;

      var node = path.node;

      if (node[SUPER_THIS_BOUND]) return;
      node[SUPER_THIS_BOUND] = true;

      path.replaceWith(t.assignmentExpression("=", this.id, node));
    }
  };

  exports.default = new _plugin2.default({
    name: "internal.shadowFunctions",

    visitor: {
      ThisExpression: function ThisExpression(path) {
        remap(path, "this");
      },
      ReferencedIdentifier: function ReferencedIdentifier(path) {
        if (path.node.name === "arguments") {
          remap(path, "arguments");
        }
      }
    }
  });

  function shouldShadow(path, shadowPath) {
    if (path.is("_forceShadow")) {
      return true;
    } else {
      return shadowPath;
    }
  }

  function remap(path, key) {
    var shadowPath = path.inShadow(key);
    if (!shouldShadow(path, shadowPath)) return;

    var shadowFunction = path.node._shadowedFunctionLiteral;

    var currentFunction = void 0;
    var passedShadowFunction = false;

    var fnPath = path.find(function (innerPath) {
      if (innerPath.parentPath && innerPath.parentPath.isClassProperty() && innerPath.key === "value") {
        return true;
      }
      if (path === innerPath) return false;
      if (innerPath.isProgram() || innerPath.isFunction()) {
        currentFunction = currentFunction || innerPath;
      }

      if (innerPath.isProgram()) {
        passedShadowFunction = true;

        return true;
      } else if (innerPath.isFunction() && !innerPath.isArrowFunctionExpression()) {
        if (shadowFunction) {
          if (innerPath === shadowFunction || innerPath.node === shadowFunction.node) return true;
        } else {
          if (!innerPath.is("shadow")) return true;
        }

        passedShadowFunction = true;
        return false;
      }

      return false;
    });

    if (shadowFunction && fnPath.isProgram() && !shadowFunction.isProgram()) {
      fnPath = path.findParent(function (p) {
        return p.isProgram() || p.isFunction();
      });
    }

    if (fnPath === currentFunction) return;

    if (!passedShadowFunction) return;

    var cached = fnPath.getData(key);
    if (cached) return path.replaceWith(cached);

    var id = path.scope.generateUidIdentifier(key);

    fnPath.setData(key, id);

    var classPath = fnPath.findParent(function (p) {
      return p.isClass();
    });
    var hasSuperClass = !!(classPath && classPath.node && classPath.node.superClass);

    if (key === "this" && fnPath.isMethod({ kind: "constructor" }) && hasSuperClass) {
      fnPath.scope.push({ id: id });

      fnPath.traverse(superVisitor, { id: id });
    } else {
      var init = key === "this" ? t.thisExpression() : t.identifier(key);

      if (shadowFunction) init._shadowedFunctionLiteral = shadowFunction;

      fnPath.scope.push({ id: id, init: init });
    }

    return path.replaceWith(id);
  }
  module.exports = exports["default"];
});
$__System.registerDynamic("1e", ["17", "d9", "5f", "1f", "20", "21", "d", "16", "18", "d1", "1c", "d5", "30", "e", "da", "db", "62", "1d", "dc", "a8", "1a", "11", "b2", "9b", "d7", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.File = undefined;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _create = $__require("d9");

  var _create2 = _interopRequireDefault(_create);

  var _assign = $__require("5f");

  var _assign2 = _interopRequireDefault(_assign);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _possibleConstructorReturn2 = $__require("20");

  var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

  var _inherits2 = $__require("21");

  var _inherits3 = _interopRequireDefault(_inherits2);

  var _babelHelpers = $__require("d");

  var _babelHelpers2 = _interopRequireDefault(_babelHelpers);

  var _metadata = $__require("16");

  var metadataVisitor = _interopRequireWildcard(_metadata);

  var _convertSourceMap = $__require("18");

  var _convertSourceMap2 = _interopRequireDefault(_convertSourceMap);

  var _optionManager = $__require("d1");

  var _optionManager2 = _interopRequireDefault(_optionManager);

  var _pluginPass = $__require("1c");

  var _pluginPass2 = _interopRequireDefault(_pluginPass);

  var _babelTraverse = $__require("d5");

  var _babelTraverse2 = _interopRequireDefault(_babelTraverse);

  var _sourceMap = $__require("30");

  var _sourceMap2 = _interopRequireDefault(_sourceMap);

  var _babelGenerator = $__require("e");

  var _babelGenerator2 = _interopRequireDefault(_babelGenerator);

  var _babelCodeFrame = $__require("da");

  var _babelCodeFrame2 = _interopRequireDefault(_babelCodeFrame);

  var _defaults = $__require("db");

  var _defaults2 = _interopRequireDefault(_defaults);

  var _logger = $__require("62");

  var _logger2 = _interopRequireDefault(_logger);

  var _store = $__require("1d");

  var _store2 = _interopRequireDefault(_store);

  var _babylon = $__require("dc");

  var _util = $__require("a8");

  var util = _interopRequireWildcard(_util);

  var _path = $__require("1a");

  var _path2 = _interopRequireDefault(_path);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _resolve = $__require("b2");

  var _resolve2 = _interopRequireDefault(_resolve);

  var _blockHoist = $__require("9b");

  var _blockHoist2 = _interopRequireDefault(_blockHoist);

  var _shadowFunctions = $__require("d7");

  var _shadowFunctions2 = _interopRequireDefault(_shadowFunctions);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var shebangRegex = /^#!.*/;

  var INTERNAL_PLUGINS = [[_blockHoist2.default], [_shadowFunctions2.default]];

  var errorVisitor = {
    enter: function enter(path, state) {
      var loc = path.node.loc;
      if (loc) {
        state.loc = loc;
        path.stop();
      }
    }
  };

  var File = function (_Store) {
    (0, _inherits3.default)(File, _Store);

    function File() {
      var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var pipeline = arguments[1];
      (0, _classCallCheck3.default)(this, File);

      var _this = (0, _possibleConstructorReturn3.default)(this, _Store.call(this));

      _this.pipeline = pipeline;

      _this.log = new _logger2.default(_this, opts.filename || "unknown");
      _this.opts = _this.initOptions(opts);

      _this.parserOpts = {
        sourceType: _this.opts.sourceType,
        sourceFileName: _this.opts.filename,
        plugins: []
      };

      _this.pluginVisitors = [];
      _this.pluginPasses = [];

      _this.buildPluginsForOptions(_this.opts);

      if (_this.opts.passPerPreset) {
        _this.perPresetOpts = [];
        _this.opts.presets.forEach(function (presetOpts) {
          var perPresetOpts = (0, _assign2.default)((0, _create2.default)(_this.opts), presetOpts);
          _this.perPresetOpts.push(perPresetOpts);
          _this.buildPluginsForOptions(perPresetOpts);
        });
      }

      _this.metadata = {
        usedHelpers: [],
        marked: [],
        modules: {
          imports: [],
          exports: {
            exported: [],
            specifiers: []
          }
        }
      };

      _this.dynamicImportTypes = {};
      _this.dynamicImportIds = {};
      _this.dynamicImports = [];
      _this.declarations = {};
      _this.usedHelpers = {};

      _this.path = null;
      _this.ast = {};

      _this.code = "";
      _this.shebang = "";

      _this.hub = new _babelTraverse.Hub(_this);
      return _this;
    }

    File.prototype.getMetadata = function getMetadata() {
      var has = false;
      for (var _iterator = this.ast.program.body, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var node = _ref;

        if (t.isModuleDeclaration(node)) {
          has = true;
          break;
        }
      }
      if (has) {
        this.path.traverse(metadataVisitor, this);
      }
    };

    File.prototype.initOptions = function initOptions(opts) {
      opts = new _optionManager2.default(this.log, this.pipeline).init(opts);

      if (opts.inputSourceMap) {
        opts.sourceMaps = true;
      }

      if (opts.moduleId) {
        opts.moduleIds = true;
      }

      opts.basename = _path2.default.basename(opts.filename, _path2.default.extname(opts.filename));

      opts.ignore = util.arrayify(opts.ignore, util.regexify);

      if (opts.only) opts.only = util.arrayify(opts.only, util.regexify);

      (0, _defaults2.default)(opts, {
        moduleRoot: opts.sourceRoot
      });

      (0, _defaults2.default)(opts, {
        sourceRoot: opts.moduleRoot
      });

      (0, _defaults2.default)(opts, {
        filenameRelative: opts.filename
      });

      var basenameRelative = _path2.default.basename(opts.filenameRelative);

      (0, _defaults2.default)(opts, {
        sourceFileName: basenameRelative,
        sourceMapTarget: basenameRelative
      });

      return opts;
    };

    File.prototype.buildPluginsForOptions = function buildPluginsForOptions(opts) {
      if (!Array.isArray(opts.plugins)) {
        return;
      }

      var plugins = opts.plugins.concat(INTERNAL_PLUGINS);
      var currentPluginVisitors = [];
      var currentPluginPasses = [];

      for (var _iterator2 = plugins, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var ref = _ref2;
        var plugin = ref[0],
            pluginOpts = ref[1];

        currentPluginVisitors.push(plugin.visitor);
        currentPluginPasses.push(new _pluginPass2.default(this, plugin, pluginOpts));

        if (plugin.manipulateOptions) {
          plugin.manipulateOptions(opts, this.parserOpts, this);
        }
      }

      this.pluginVisitors.push(currentPluginVisitors);
      this.pluginPasses.push(currentPluginPasses);
    };

    File.prototype.getModuleName = function getModuleName() {
      var opts = this.opts;
      if (!opts.moduleIds) {
        return null;
      }

      if (opts.moduleId != null && !opts.getModuleId) {
        return opts.moduleId;
      }

      var filenameRelative = opts.filenameRelative;
      var moduleName = "";

      if (opts.moduleRoot != null) {
        moduleName = opts.moduleRoot + "/";
      }

      if (!opts.filenameRelative) {
        return moduleName + opts.filename.replace(/^\//, "");
      }

      if (opts.sourceRoot != null) {
        var sourceRootRegEx = new RegExp("^" + opts.sourceRoot + "\/?");
        filenameRelative = filenameRelative.replace(sourceRootRegEx, "");
      }

      filenameRelative = filenameRelative.replace(/\.(\w*?)$/, "");

      moduleName += filenameRelative;

      moduleName = moduleName.replace(/\\/g, "/");

      if (opts.getModuleId) {
        return opts.getModuleId(moduleName) || moduleName;
      } else {
        return moduleName;
      }
    };

    File.prototype.resolveModuleSource = function resolveModuleSource(source) {
      var resolveModuleSource = this.opts.resolveModuleSource;
      if (resolveModuleSource) source = resolveModuleSource(source, this.opts.filename);
      return source;
    };

    File.prototype.addImport = function addImport(source, imported) {
      var name = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : imported;

      var alias = source + ":" + imported;
      var id = this.dynamicImportIds[alias];

      if (!id) {
        source = this.resolveModuleSource(source);
        id = this.dynamicImportIds[alias] = this.scope.generateUidIdentifier(name);

        var specifiers = [];

        if (imported === "*") {
          specifiers.push(t.importNamespaceSpecifier(id));
        } else if (imported === "default") {
          specifiers.push(t.importDefaultSpecifier(id));
        } else {
          specifiers.push(t.importSpecifier(id, t.identifier(imported)));
        }

        var declar = t.importDeclaration(specifiers, t.stringLiteral(source));
        declar._blockHoist = 3;

        this.path.unshiftContainer("body", declar);
      }

      return id;
    };

    File.prototype.addHelper = function addHelper(name) {
      var declar = this.declarations[name];
      if (declar) return declar;

      if (!this.usedHelpers[name]) {
        this.metadata.usedHelpers.push(name);
        this.usedHelpers[name] = true;
      }

      var generator = this.get("helperGenerator");
      var runtime = this.get("helpersNamespace");
      if (generator) {
        var res = generator(name);
        if (res) return res;
      } else if (runtime) {
        return t.memberExpression(runtime, t.identifier(name));
      }

      var ref = (0, _babelHelpers2.default)(name);
      var uid = this.declarations[name] = this.scope.generateUidIdentifier(name);

      if (t.isFunctionExpression(ref) && !ref.id) {
        ref.body._compact = true;
        ref._generated = true;
        ref.id = uid;
        ref.type = "FunctionDeclaration";
        this.path.unshiftContainer("body", ref);
      } else {
        ref._compact = true;
        this.scope.push({
          id: uid,
          init: ref,
          unique: true
        });
      }

      return uid;
    };

    File.prototype.addTemplateObject = function addTemplateObject(helperName, strings, raw) {
      var stringIds = raw.elements.map(function (string) {
        return string.value;
      });
      var name = helperName + "_" + raw.elements.length + "_" + stringIds.join(",");

      var declar = this.declarations[name];
      if (declar) return declar;

      var uid = this.declarations[name] = this.scope.generateUidIdentifier("templateObject");

      var helperId = this.addHelper(helperName);
      var init = t.callExpression(helperId, [strings, raw]);
      init._compact = true;
      this.scope.push({
        id: uid,
        init: init,
        _blockHoist: 1.9 });
      return uid;
    };

    File.prototype.buildCodeFrameError = function buildCodeFrameError(node, msg) {
      var Error = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : SyntaxError;

      var loc = node && (node.loc || node._loc);

      var err = new Error(msg);

      if (loc) {
        err.loc = loc.start;
      } else {
        (0, _babelTraverse2.default)(node, errorVisitor, this.scope, err);

        err.message += " (This is an error on an internal node. Probably an internal error";

        if (err.loc) {
          err.message += ". Location has been estimated.";
        }

        err.message += ")";
      }

      return err;
    };

    File.prototype.mergeSourceMap = function mergeSourceMap(map) {
      var inputMap = this.opts.inputSourceMap;

      if (inputMap) {
        var inputMapConsumer = new _sourceMap2.default.SourceMapConsumer(inputMap);
        var outputMapConsumer = new _sourceMap2.default.SourceMapConsumer(map);

        var mergedGenerator = new _sourceMap2.default.SourceMapGenerator({
          file: inputMapConsumer.file,
          sourceRoot: inputMapConsumer.sourceRoot
        });

        var source = outputMapConsumer.sources[0];

        inputMapConsumer.eachMapping(function (mapping) {
          var generatedPosition = outputMapConsumer.generatedPositionFor({
            line: mapping.generatedLine,
            column: mapping.generatedColumn,
            source: source
          });
          if (generatedPosition.column != null) {
            mergedGenerator.addMapping({
              source: mapping.source,

              original: mapping.source == null ? null : {
                line: mapping.originalLine,
                column: mapping.originalColumn
              },

              generated: generatedPosition
            });
          }
        });

        var mergedMap = mergedGenerator.toJSON();
        inputMap.mappings = mergedMap.mappings;
        return inputMap;
      } else {
        return map;
      }
    };

    File.prototype.parse = function parse(code) {
      var parseCode = _babylon.parse;
      var parserOpts = this.opts.parserOpts;

      if (parserOpts) {
        parserOpts = (0, _assign2.default)({}, this.parserOpts, parserOpts);

        if (parserOpts.parser) {
          if (typeof parserOpts.parser === "string") {
            var dirname = _path2.default.dirname(this.opts.filename) || process.cwd();
            var parser = (0, _resolve2.default)(parserOpts.parser, dirname);
            if (parser) {
              parseCode = $__require(parser).parse;
            } else {
              throw new Error("Couldn't find parser " + parserOpts.parser + " with \"parse\" method " + ("relative to directory " + dirname));
            }
          } else {
            parseCode = parserOpts.parser;
          }

          parserOpts.parser = {
            parse: function parse(source) {
              return (0, _babylon.parse)(source, parserOpts);
            }
          };
        }
      }

      this.log.debug("Parse start");
      var ast = parseCode(code, parserOpts || this.parserOpts);
      this.log.debug("Parse stop");
      return ast;
    };

    File.prototype._addAst = function _addAst(ast) {
      this.path = _babelTraverse.NodePath.get({
        hub: this.hub,
        parentPath: null,
        parent: ast,
        container: ast,
        key: "program"
      }).setContext();
      this.scope = this.path.scope;
      this.ast = ast;
      this.getMetadata();
    };

    File.prototype.addAst = function addAst(ast) {
      this.log.debug("Start set AST");
      this._addAst(ast);
      this.log.debug("End set AST");
    };

    File.prototype.transform = function transform() {
      for (var i = 0; i < this.pluginPasses.length; i++) {
        var pluginPasses = this.pluginPasses[i];
        this.call("pre", pluginPasses);
        this.log.debug("Start transform traverse");

        var visitor = _babelTraverse2.default.visitors.merge(this.pluginVisitors[i], pluginPasses, this.opts.wrapPluginVisitorMethod);
        (0, _babelTraverse2.default)(this.ast, visitor, this.scope);

        this.log.debug("End transform traverse");
        this.call("post", pluginPasses);
      }

      return this.generate();
    };

    File.prototype.wrap = function wrap(code, callback) {
      code = code + "";

      try {
        if (this.shouldIgnore()) {
          return this.makeResult({ code: code, ignored: true });
        } else {
          return callback();
        }
      } catch (err) {
        if (err._babel) {
          throw err;
        } else {
          err._babel = true;
        }

        var message = err.message = this.opts.filename + ": " + err.message;

        var loc = err.loc;
        if (loc) {
          err.codeFrame = (0, _babelCodeFrame2.default)(code, loc.line, loc.column + 1, this.opts);
          message += "\n" + err.codeFrame;
        }

        if (process.browser) {
          err.message = message;
        }

        if (err.stack) {
          var newStack = err.stack.replace(err.message, message);
          err.stack = newStack;
        }

        throw err;
      }
    };

    File.prototype.addCode = function addCode(code) {
      code = (code || "") + "";
      code = this.parseInputSourceMap(code);
      this.code = code;
    };

    File.prototype.parseCode = function parseCode() {
      this.parseShebang();
      var ast = this.parse(this.code);
      this.addAst(ast);
    };

    File.prototype.shouldIgnore = function shouldIgnore() {
      var opts = this.opts;
      return util.shouldIgnore(opts.filename, opts.ignore, opts.only);
    };

    File.prototype.call = function call(key, pluginPasses) {
      for (var _iterator3 = pluginPasses, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
        var _ref3;

        if (_isArray3) {
          if (_i3 >= _iterator3.length) break;
          _ref3 = _iterator3[_i3++];
        } else {
          _i3 = _iterator3.next();
          if (_i3.done) break;
          _ref3 = _i3.value;
        }

        var pass = _ref3;

        var plugin = pass.plugin;
        var fn = plugin[key];
        if (fn) fn.call(pass, this);
      }
    };

    File.prototype.parseInputSourceMap = function parseInputSourceMap(code) {
      var opts = this.opts;

      if (opts.inputSourceMap !== false) {
        var inputMap = _convertSourceMap2.default.fromSource(code);
        if (inputMap) {
          opts.inputSourceMap = inputMap.toObject();
          code = _convertSourceMap2.default.removeComments(code);
        }
      }

      return code;
    };

    File.prototype.parseShebang = function parseShebang() {
      var shebangMatch = shebangRegex.exec(this.code);
      if (shebangMatch) {
        this.shebang = shebangMatch[0];
        this.code = this.code.replace(shebangRegex, "");
      }
    };

    File.prototype.makeResult = function makeResult(_ref4) {
      var code = _ref4.code,
          map = _ref4.map,
          ast = _ref4.ast,
          ignored = _ref4.ignored;

      var result = {
        metadata: null,
        options: this.opts,
        ignored: !!ignored,
        code: null,
        ast: null,
        map: map || null
      };

      if (this.opts.code) {
        result.code = code;
      }

      if (this.opts.ast) {
        result.ast = ast;
      }

      if (this.opts.metadata) {
        result.metadata = this.metadata;
      }

      return result;
    };

    File.prototype.generate = function generate() {
      var opts = this.opts;
      var ast = this.ast;

      var result = { ast: ast };
      if (!opts.code) return this.makeResult(result);

      var gen = _babelGenerator2.default;
      if (opts.generatorOpts.generator) {
        gen = opts.generatorOpts.generator;

        if (typeof gen === "string") {
          var dirname = _path2.default.dirname(this.opts.filename) || process.cwd();
          var generator = (0, _resolve2.default)(gen, dirname);
          if (generator) {
            gen = $__require(generator).print;
          } else {
            throw new Error("Couldn't find generator " + gen + " with \"print\" method relative " + ("to directory " + dirname));
          }
        }
      }

      this.log.debug("Generation start");

      var _result = gen(ast, opts.generatorOpts ? (0, _assign2.default)(opts, opts.generatorOpts) : opts, this.code);
      result.code = _result.code;
      result.map = _result.map;

      this.log.debug("Generation end");

      if (this.shebang) {
        result.code = this.shebang + "\n" + result.code;
      }

      if (result.map) {
        result.map = this.mergeSourceMap(result.map);
      }

      if (opts.sourceMaps === "inline" || opts.sourceMaps === "both") {
        result.code += "\n" + _convertSourceMap2.default.fromObject(result.map).toComment();
      }

      if (opts.sourceMaps === "inline") {
        result.map = null;
      }

      return this.makeResult(result);
    };

    return File;
  }(_store2.default);

  exports.default = File;
  exports.File = File;
});
$__System.registerDynamic("dd", ["1f", "13", "9c", "1e", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _normalizeAst = $__require("13");

  var _normalizeAst2 = _interopRequireDefault(_normalizeAst);

  var _plugin = $__require("9c");

  var _plugin2 = _interopRequireDefault(_plugin);

  var _file = $__require("1e");

  var _file2 = _interopRequireDefault(_file);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var Pipeline = function () {
    function Pipeline() {
      (0, _classCallCheck3.default)(this, Pipeline);
    }

    Pipeline.prototype.lint = function lint(code) {
      var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

      opts.code = false;
      opts.mode = "lint";
      return this.transform(code, opts);
    };

    Pipeline.prototype.pretransform = function pretransform(code, opts) {
      var file = new _file2.default(opts, this);
      return file.wrap(code, function () {
        file.addCode(code);
        file.parseCode(code);
        return file;
      });
    };

    Pipeline.prototype.transform = function transform(code, opts) {
      var file = new _file2.default(opts, this);
      return file.wrap(code, function () {
        file.addCode(code);
        file.parseCode(code);
        return file.transform();
      });
    };

    Pipeline.prototype.analyse = function analyse(code) {
      var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      var visitor = arguments[2];

      opts.code = false;
      if (visitor) {
        opts.plugins = opts.plugins || [];
        opts.plugins.push(new _plugin2.default({ visitor: visitor }));
      }
      return this.transform(code, opts).metadata;
    };

    Pipeline.prototype.transformFromAst = function transformFromAst(ast, code, opts) {
      ast = (0, _normalizeAst2.default)(ast);

      var file = new _file2.default(opts, this);
      return file.wrap(code, function () {
        file.addCode(code);
        file.addAst(ast);
        return file.transform();
      });
    };

    return Pipeline;
  }();

  exports.default = Pipeline;
  module.exports = exports["default"];
});
$__System.registerDynamic("d2", ["1e", "ae", "b", "10", "b0", "b4", "12", "19", "a8", "f", "11", "d5", "d1", "dd", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.transformFromAst = exports.transform = exports.analyse = exports.Pipeline = exports.OptionManager = exports.traverse = exports.types = exports.messages = exports.util = exports.version = exports.resolvePreset = exports.resolvePlugin = exports.template = exports.buildExternalHelpers = exports.options = exports.File = undefined;

  var _file = $__require("1e");

  Object.defineProperty(exports, "File", {
    enumerable: true,
    get: function get() {
      return _interopRequireDefault(_file).default;
    }
  });

  var _config = $__require("ae");

  Object.defineProperty(exports, "options", {
    enumerable: true,
    get: function get() {
      return _interopRequireDefault(_config).default;
    }
  });

  var _buildExternalHelpers = $__require("b");

  Object.defineProperty(exports, "buildExternalHelpers", {
    enumerable: true,
    get: function get() {
      return _interopRequireDefault(_buildExternalHelpers).default;
    }
  });

  var _babelTemplate = $__require("10");

  Object.defineProperty(exports, "template", {
    enumerable: true,
    get: function get() {
      return _interopRequireDefault(_babelTemplate).default;
    }
  });

  var _resolvePlugin = $__require("b0");

  Object.defineProperty(exports, "resolvePlugin", {
    enumerable: true,
    get: function get() {
      return _interopRequireDefault(_resolvePlugin).default;
    }
  });

  var _resolvePreset = $__require("b4");

  Object.defineProperty(exports, "resolvePreset", {
    enumerable: true,
    get: function get() {
      return _interopRequireDefault(_resolvePreset).default;
    }
  });

  var _package = $__require("12");

  Object.defineProperty(exports, "version", {
    enumerable: true,
    get: function get() {
      return _package.version;
    }
  });
  exports.Plugin = Plugin;
  exports.transformFile = transformFile;
  exports.transformFileSync = transformFileSync;

  var _fs = $__require("19");

  var _fs2 = _interopRequireDefault(_fs);

  var _util = $__require("a8");

  var util = _interopRequireWildcard(_util);

  var _babelMessages = $__require("f");

  var messages = _interopRequireWildcard(_babelMessages);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _babelTraverse = $__require("d5");

  var _babelTraverse2 = _interopRequireDefault(_babelTraverse);

  var _optionManager = $__require("d1");

  var _optionManager2 = _interopRequireDefault(_optionManager);

  var _pipeline = $__require("dd");

  var _pipeline2 = _interopRequireDefault(_pipeline);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.util = util;
  exports.messages = messages;
  exports.types = t;
  exports.traverse = _babelTraverse2.default;
  exports.OptionManager = _optionManager2.default;
  function Plugin(alias) {
    throw new Error("The (" + alias + ") Babel 5 plugin is being run with Babel 6.");
  }

  exports.Pipeline = _pipeline2.default;

  var pipeline = new _pipeline2.default();
  var analyse = exports.analyse = pipeline.analyse.bind(pipeline);
  var transform = exports.transform = pipeline.transform.bind(pipeline);
  var transformFromAst = exports.transformFromAst = pipeline.transformFromAst.bind(pipeline);

  function transformFile(filename, opts, callback) {
    if (typeof opts === "function") {
      callback = opts;
      opts = {};
    }

    opts.filename = filename;

    _fs2.default.readFile(filename, function (err, code) {
      var result = void 0;

      if (!err) {
        try {
          result = transform(code, opts);
        } catch (_err) {
          err = _err;
        }
      }

      if (err) {
        callback(err);
      } else {
        callback(null, result);
      }
    });
  }

  function transformFileSync(filename) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    opts.filename = filename;
    return transform(_fs2.default.readFileSync(filename, "utf8"), opts);
  }
});
$__System.registerDynamic("de", ["d2", "c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  module.exports = $__require("d2");
});
$__System.registerDynamic("df", ["d9", "17", "d8", "e0", "10"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _create = $__require("d9");

  var _create2 = _interopRequireDefault(_create);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _symbol = $__require("d8");

  var _symbol2 = _interopRequireDefault(_symbol);

  exports.default = function (_ref) {
    var t = _ref.types;

    var IGNORE_REASSIGNMENT_SYMBOL = (0, _symbol2.default)();

    var reassignmentVisitor = {
      "AssignmentExpression|UpdateExpression": function AssignmentExpressionUpdateExpression(path) {
        if (path.node[IGNORE_REASSIGNMENT_SYMBOL]) return;
        path.node[IGNORE_REASSIGNMENT_SYMBOL] = true;

        var arg = path.get(path.isAssignmentExpression() ? "left" : "argument");
        if (!arg.isIdentifier()) return;

        var name = arg.node.name;

        if (this.scope.getBinding(name) !== path.scope.getBinding(name)) return;

        var exportedNames = this.exports[name];
        if (!exportedNames) return;

        var node = path.node;

        var isPostUpdateExpression = path.isUpdateExpression() && !node.prefix;
        if (isPostUpdateExpression) {
          if (node.operator === "++") node = t.binaryExpression("+", node.argument, t.numericLiteral(1));else if (node.operator === "--") node = t.binaryExpression("-", node.argument, t.numericLiteral(1));else isPostUpdateExpression = false;
        }

        for (var _iterator = exportedNames, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
          var _ref2;

          if (_isArray) {
            if (_i >= _iterator.length) break;
            _ref2 = _iterator[_i++];
          } else {
            _i = _iterator.next();
            if (_i.done) break;
            _ref2 = _i.value;
          }

          var exportedName = _ref2;

          node = this.buildCall(exportedName, node).expression;
        }

        if (isPostUpdateExpression) node = t.sequenceExpression([node, path.node]);

        path.replaceWith(node);
      }
    };

    return {
      visitor: {
        CallExpression: function CallExpression(path, state) {
          if (path.node.callee.type === TYPE_IMPORT) {
            var contextIdent = state.contextIdent;
            path.replaceWith(t.callExpression(t.memberExpression(contextIdent, t.identifier("import")), path.node.arguments));
          }
        },
        ReferencedIdentifier: function ReferencedIdentifier(path, state) {
          if (path.node.name == "__moduleName" && !path.scope.hasBinding("__moduleName")) {
            path.replaceWith(t.memberExpression(state.contextIdent, t.identifier("id")));
          }
        },

        Program: {
          enter: function enter(path, state) {
            state.contextIdent = path.scope.generateUidIdentifier("context");
          },
          exit: function exit(path, state) {
            var exportIdent = path.scope.generateUidIdentifier("export");
            var contextIdent = state.contextIdent;

            var exportNames = (0, _create2.default)(null);
            var modules = [];

            var beforeBody = [];
            var setters = [];
            var sources = [];
            var variableIds = [];
            var removedPaths = [];

            function addExportName(key, val) {
              exportNames[key] = exportNames[key] || [];
              exportNames[key].push(val);
            }

            function pushModule(source, key, specifiers) {
              var module = void 0;
              modules.forEach(function (m) {
                if (m.key === source) {
                  module = m;
                }
              });
              if (!module) {
                modules.push(module = { key: source, imports: [], exports: [] });
              }
              module[key] = module[key].concat(specifiers);
            }

            function buildExportCall(name, val) {
              return t.expressionStatement(t.callExpression(exportIdent, [t.stringLiteral(name), val]));
            }

            var body = path.get("body");

            var canHoist = true;
            for (var _iterator2 = body, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
              var _ref3;

              if (_isArray2) {
                if (_i2 >= _iterator2.length) break;
                _ref3 = _iterator2[_i2++];
              } else {
                _i2 = _iterator2.next();
                if (_i2.done) break;
                _ref3 = _i2.value;
              }

              var _path = _ref3;

              if (_path.isExportDeclaration()) _path = _path.get("declaration");
              if (_path.isVariableDeclaration() && _path.node.kind !== "var") {
                canHoist = false;
                break;
              }
            }

            for (var _iterator3 = body, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
              var _ref4;

              if (_isArray3) {
                if (_i3 >= _iterator3.length) break;
                _ref4 = _iterator3[_i3++];
              } else {
                _i3 = _iterator3.next();
                if (_i3.done) break;
                _ref4 = _i3.value;
              }

              var _path2 = _ref4;

              if (canHoist && _path2.isFunctionDeclaration()) {
                beforeBody.push(_path2.node);
                removedPaths.push(_path2);
              } else if (_path2.isImportDeclaration()) {
                var source = _path2.node.source.value;
                pushModule(source, "imports", _path2.node.specifiers);
                for (var name in _path2.getBindingIdentifiers()) {
                  _path2.scope.removeBinding(name);
                  variableIds.push(t.identifier(name));
                }
                _path2.remove();
              } else if (_path2.isExportAllDeclaration()) {
                pushModule(_path2.node.source.value, "exports", _path2.node);
                _path2.remove();
              } else if (_path2.isExportDefaultDeclaration()) {
                var declar = _path2.get("declaration");
                if (declar.isClassDeclaration() || declar.isFunctionDeclaration()) {
                  var id = declar.node.id;
                  var nodes = [];

                  if (id) {
                    nodes.push(declar.node);
                    nodes.push(buildExportCall("default", id));
                    addExportName(id.name, "default");
                  } else {
                    nodes.push(buildExportCall("default", t.toExpression(declar.node)));
                  }

                  if (!canHoist || declar.isClassDeclaration()) {
                    _path2.replaceWithMultiple(nodes);
                  } else {
                    beforeBody = beforeBody.concat(nodes);
                    removedPaths.push(_path2);
                  }
                } else {
                  _path2.replaceWith(buildExportCall("default", declar.node));
                }
              } else if (_path2.isExportNamedDeclaration()) {
                var _declar = _path2.get("declaration");

                if (_declar.node) {
                  _path2.replaceWith(_declar);

                  var _nodes = [];
                  var bindingIdentifiers = void 0;
                  if (_path2.isFunction()) {
                    var node = _declar.node;
                    var _name = node.id.name;
                    if (canHoist) {
                      addExportName(_name, _name);
                      beforeBody.push(node);
                      beforeBody.push(buildExportCall(_name, node.id));
                      removedPaths.push(_path2);
                    } else {
                      var _bindingIdentifiers;

                      bindingIdentifiers = (_bindingIdentifiers = {}, _bindingIdentifiers[_name] = node.id, _bindingIdentifiers);
                    }
                  } else {
                    bindingIdentifiers = _declar.getBindingIdentifiers();
                  }
                  for (var _name2 in bindingIdentifiers) {
                    addExportName(_name2, _name2);
                    _nodes.push(buildExportCall(_name2, t.identifier(_name2)));
                  }
                  _path2.insertAfter(_nodes);
                } else {
                  var specifiers = _path2.node.specifiers;
                  if (specifiers && specifiers.length) {
                    if (_path2.node.source) {
                      pushModule(_path2.node.source.value, "exports", specifiers);
                      _path2.remove();
                    } else {
                      var _nodes2 = [];

                      for (var _iterator7 = specifiers, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : (0, _getIterator3.default)(_iterator7);;) {
                        var _ref8;

                        if (_isArray7) {
                          if (_i7 >= _iterator7.length) break;
                          _ref8 = _iterator7[_i7++];
                        } else {
                          _i7 = _iterator7.next();
                          if (_i7.done) break;
                          _ref8 = _i7.value;
                        }

                        var specifier = _ref8;

                        _nodes2.push(buildExportCall(specifier.exported.name, specifier.local));
                        addExportName(specifier.local.name, specifier.exported.name);
                      }

                      _path2.replaceWithMultiple(_nodes2);
                    }
                  }
                }
              }
            }

            modules.forEach(function (specifiers) {
              var setterBody = [];
              var target = path.scope.generateUidIdentifier(specifiers.key);

              for (var _iterator4 = specifiers.imports, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
                var _ref5;

                if (_isArray4) {
                  if (_i4 >= _iterator4.length) break;
                  _ref5 = _iterator4[_i4++];
                } else {
                  _i4 = _iterator4.next();
                  if (_i4.done) break;
                  _ref5 = _i4.value;
                }

                var specifier = _ref5;

                if (t.isImportNamespaceSpecifier(specifier)) {
                  setterBody.push(t.expressionStatement(t.assignmentExpression("=", specifier.local, target)));
                } else if (t.isImportDefaultSpecifier(specifier)) {
                  specifier = t.importSpecifier(specifier.local, t.identifier("default"));
                }

                if (t.isImportSpecifier(specifier)) {
                  setterBody.push(t.expressionStatement(t.assignmentExpression("=", specifier.local, t.memberExpression(target, specifier.imported))));
                }
              }

              if (specifiers.exports.length) {
                var exportObjRef = path.scope.generateUidIdentifier("exportObj");

                setterBody.push(t.variableDeclaration("var", [t.variableDeclarator(exportObjRef, t.objectExpression([]))]));

                for (var _iterator5 = specifiers.exports, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
                  var _ref6;

                  if (_isArray5) {
                    if (_i5 >= _iterator5.length) break;
                    _ref6 = _iterator5[_i5++];
                  } else {
                    _i5 = _iterator5.next();
                    if (_i5.done) break;
                    _ref6 = _i5.value;
                  }

                  var node = _ref6;

                  if (t.isExportAllDeclaration(node)) {
                    setterBody.push(buildExportAll({
                      KEY: path.scope.generateUidIdentifier("key"),
                      EXPORT_OBJ: exportObjRef,
                      TARGET: target
                    }));
                  } else if (t.isExportSpecifier(node)) {
                    setterBody.push(t.expressionStatement(t.assignmentExpression("=", t.memberExpression(exportObjRef, node.exported), t.memberExpression(target, node.local))));
                  } else {}
                }

                setterBody.push(t.expressionStatement(t.callExpression(exportIdent, [exportObjRef])));
              }

              sources.push(t.stringLiteral(specifiers.key));
              setters.push(t.functionExpression(null, [target], t.blockStatement(setterBody)));
            });

            var moduleName = this.getModuleName();
            if (moduleName) moduleName = t.stringLiteral(moduleName);

            if (canHoist) {
              (0, _babelHelperHoistVariables2.default)(path, function (id) {
                return variableIds.push(id);
              });
            }

            if (variableIds.length) {
              beforeBody.unshift(t.variableDeclaration("var", variableIds.map(function (id) {
                return t.variableDeclarator(id);
              })));
            }

            path.traverse(reassignmentVisitor, {
              exports: exportNames,
              buildCall: buildExportCall,
              scope: path.scope
            });

            for (var _iterator6 = removedPaths, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : (0, _getIterator3.default)(_iterator6);;) {
              var _ref7;

              if (_isArray6) {
                if (_i6 >= _iterator6.length) break;
                _ref7 = _iterator6[_i6++];
              } else {
                _i6 = _iterator6.next();
                if (_i6.done) break;
                _ref7 = _i6.value;
              }

              var _path3 = _ref7;

              _path3.remove();
            }

            path.node.body = [buildTemplate({
              SYSTEM_REGISTER: t.memberExpression(t.identifier(state.opts.systemGlobal || "System"), t.identifier("register")),
              BEFORE_BODY: beforeBody,
              MODULE_NAME: moduleName,
              SETTERS: setters,
              SOURCES: sources,
              BODY: path.node.body,
              EXPORT_IDENTIFIER: exportIdent,
              CONTEXT_IDENTIFIER: contextIdent
            })];
          }
        }
      }
    };
  };

  var _babelHelperHoistVariables = $__require("e0");

  var _babelHelperHoistVariables2 = _interopRequireDefault(_babelHelperHoistVariables);

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var buildTemplate = (0, _babelTemplate2.default)("\n  SYSTEM_REGISTER(MODULE_NAME, [SOURCES], function (EXPORT_IDENTIFIER, CONTEXT_IDENTIFIER) {\n    \"use strict\";\n    BEFORE_BODY;\n    return {\n      setters: [SETTERS],\n      execute: function () {\n        BODY;\n      }\n    };\n  });\n");

  var buildExportAll = (0, _babelTemplate2.default)("\n  for (var KEY in TARGET) {\n    if (KEY !== \"default\" && KEY !== \"__esModule\") EXPORT_OBJ[KEY] = TARGET[KEY];\n  }\n");

  var TYPE_IMPORT = "Import";

  module.exports = exports["default"];
});
$__System.registerDynamic("e1", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (_ref) {
    var t = _ref.types;

    return {
      pre: function pre(file) {
        file.set("helpersNamespace", t.identifier("babelHelpers"));
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("e2", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  module.exports = {
    builtins: {
      Symbol: "symbol",
      Promise: "promise",
      Map: "map",
      WeakMap: "weak-map",
      Set: "set",
      WeakSet: "weak-set",
      Observable: "observable",
      setImmediate: "set-immediate",
      clearImmediate: "clear-immediate",
      asap: "asap"
    },

    methods: {
      Array: {
        concat: "array/concat",
        copyWithin: "array/copy-within",
        entries: "array/entries",
        every: "array/every",
        fill: "array/fill",
        filter: "array/filter",
        findIndex: "array/find-index",
        find: "array/find",
        forEach: "array/for-each",
        from: "array/from",
        includes: "array/includes",
        indexOf: "array/index-of",

        join: "array/join",
        keys: "array/keys",
        lastIndexOf: "array/last-index-of",
        map: "array/map",
        of: "array/of",
        pop: "array/pop",
        push: "array/push",
        reduceRight: "array/reduce-right",
        reduce: "array/reduce",
        reverse: "array/reverse",
        shift: "array/shift",
        slice: "array/slice",
        some: "array/some",
        sort: "array/sort",
        splice: "array/splice",
        unshift: "array/unshift",
        values: "array/values"
      },

      JSON: {
        stringify: "json/stringify"
      },

      Object: {
        assign: "object/assign",
        create: "object/create",
        defineProperties: "object/define-properties",
        defineProperty: "object/define-property",
        entries: "object/entries",
        freeze: "object/freeze",
        getOwnPropertyDescriptor: "object/get-own-property-descriptor",
        getOwnPropertyDescriptors: "object/get-own-property-descriptors",
        getOwnPropertyNames: "object/get-own-property-names",
        getOwnPropertySymbols: "object/get-own-property-symbols",
        getPrototypeOf: "object/get-prototype-of",
        isExtensible: "object/is-extensible",
        isFrozen: "object/is-frozen",
        isSealed: "object/is-sealed",
        is: "object/is",
        keys: "object/keys",
        preventExtensions: "object/prevent-extensions",
        seal: "object/seal",
        setPrototypeOf: "object/set-prototype-of",
        values: "object/values"
      },

      RegExp: {
        escape: "regexp/escape" },

      Math: {
        acosh: "math/acosh",
        asinh: "math/asinh",
        atanh: "math/atanh",
        cbrt: "math/cbrt",
        clz32: "math/clz32",
        cosh: "math/cosh",
        expm1: "math/expm1",
        fround: "math/fround",
        hypot: "math/hypot",
        imul: "math/imul",
        log10: "math/log10",
        log1p: "math/log1p",
        log2: "math/log2",
        sign: "math/sign",
        sinh: "math/sinh",
        tanh: "math/tanh",
        trunc: "math/trunc",
        iaddh: "math/iaddh",
        isubh: "math/isubh",
        imulh: "math/imulh",
        umulh: "math/umulh"
      },

      Symbol: {
        for: "symbol/for",
        hasInstance: "symbol/has-instance",
        isConcatSpreadable: "symbol/is-concat-spreadable",
        iterator: "symbol/iterator",
        keyFor: "symbol/key-for",
        match: "symbol/match",
        replace: "symbol/replace",
        search: "symbol/search",
        species: "symbol/species",
        split: "symbol/split",
        toPrimitive: "symbol/to-primitive",
        toStringTag: "symbol/to-string-tag",
        unscopables: "symbol/unscopables"
      },

      String: {
        at: "string/at",
        codePointAt: "string/code-point-at",
        endsWith: "string/ends-with",
        fromCodePoint: "string/from-code-point",
        includes: "string/includes",
        matchAll: "string/match-all",
        padLeft: "string/pad-left",
        padRight: "string/pad-right",
        padStart: "string/pad-start",
        padEnd: "string/pad-end",
        raw: "string/raw",
        repeat: "string/repeat",
        startsWith: "string/starts-with",
        trim: "string/trim",
        trimLeft: "string/trim-left",
        trimRight: "string/trim-right",
        trimStart: "string/trim-start",
        trimEnd: "string/trim-end"
      },

      Number: {
        EPSILON: "number/epsilon",
        isFinite: "number/is-finite",
        isInteger: "number/is-integer",
        isNaN: "number/is-nan",
        isSafeInteger: "number/is-safe-integer",
        MAX_SAFE_INTEGER: "number/max-safe-integer",
        MIN_SAFE_INTEGER: "number/min-safe-integer",
        parseFloat: "number/parse-float",
        parseInt: "number/parse-int"
      },

      Reflect: {
        apply: "reflect/apply",
        construct: "reflect/construct",
        defineProperty: "reflect/define-property",
        deleteProperty: "reflect/delete-property",
        enumerate: "reflect/enumerate",
        getOwnPropertyDescriptor: "reflect/get-own-property-descriptor",
        getPrototypeOf: "reflect/get-prototype-of",
        get: "reflect/get",
        has: "reflect/has",
        isExtensible: "reflect/is-extensible",
        ownKeys: "reflect/own-keys",
        preventExtensions: "reflect/prevent-extensions",
        setPrototypeOf: "reflect/set-prototype-of",
        set: "reflect/set",
        defineMetadata: "reflect/define-metadata",
        deleteMetadata: "reflect/delete-metadata",
        getMetadata: "reflect/get-metadata",
        getMetadataKeys: "reflect/get-metadata-keys",
        getOwnMetadata: "reflect/get-own-metadata",
        getOwnMetadataKeys: "reflect/get-own-metadata-keys",
        hasMetadata: "reflect/has-metadata",
        hasOwnMetadata: "reflect/has-own-metadata",
        metadata: "reflect/metadata"
      },

      System: {
        global: "system/global"
      },

      Error: {
        isError: "error/is-error" },

      Date: {},

      Function: {}
    }
  };
});
$__System.registerDynamic("e3", ["e2"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.definitions = undefined;

  exports.default = function (_ref) {
    var t = _ref.types;

    function getRuntimeModuleName(opts) {
      return opts.moduleName || "babel-runtime";
    }

    function has(obj, key) {
      return Object.prototype.hasOwnProperty.call(obj, key);
    }

    var HELPER_BLACKLIST = ["interopRequireWildcard", "interopRequireDefault"];

    return {
      pre: function pre(file) {
        var moduleName = getRuntimeModuleName(this.opts);

        if (this.opts.helpers !== false) {
          file.set("helperGenerator", function (name) {
            if (HELPER_BLACKLIST.indexOf(name) < 0) {
              return file.addImport(moduleName + "/helpers/" + name, "default", name);
            }
          });
        }

        this.setDynamic("regeneratorIdentifier", function () {
          return file.addImport(moduleName + "/regenerator", "default", "regeneratorRuntime");
        });
      },

      visitor: {
        ReferencedIdentifier: function ReferencedIdentifier(path, state) {
          var node = path.node,
              parent = path.parent,
              scope = path.scope;

          if (node.name === "regeneratorRuntime" && state.opts.regenerator !== false) {
            path.replaceWith(state.get("regeneratorIdentifier"));
            return;
          }

          if (state.opts.polyfill === false) return;

          if (t.isMemberExpression(parent)) return;
          if (!has(_definitions2.default.builtins, node.name)) return;
          if (scope.getBindingIdentifier(node.name)) return;

          var moduleName = getRuntimeModuleName(state.opts);
          path.replaceWith(state.addImport(moduleName + "/core-js/" + _definitions2.default.builtins[node.name], "default", node.name));
        },
        CallExpression: function CallExpression(path, state) {
          if (state.opts.polyfill === false) return;

          if (path.node.arguments.length) return;

          var callee = path.node.callee;
          if (!t.isMemberExpression(callee)) return;
          if (!callee.computed) return;
          if (!path.get("callee.property").matchesPattern("Symbol.iterator")) return;

          var moduleName = getRuntimeModuleName(state.opts);
          path.replaceWith(t.callExpression(state.addImport(moduleName + "/core-js/get-iterator", "default", "getIterator"), [callee.object]));
        },
        BinaryExpression: function BinaryExpression(path, state) {
          if (state.opts.polyfill === false) return;

          if (path.node.operator !== "in") return;
          if (!path.get("left").matchesPattern("Symbol.iterator")) return;

          var moduleName = getRuntimeModuleName(state.opts);
          path.replaceWith(t.callExpression(state.addImport(moduleName + "/core-js/is-iterable", "default", "isIterable"), [path.node.right]));
        },

        MemberExpression: {
          enter: function enter(path, state) {
            if (state.opts.polyfill === false) return;
            if (!path.isReferenced()) return;

            var node = path.node;

            var obj = node.object;
            var prop = node.property;

            if (!t.isReferenced(obj, node)) return;
            if (node.computed) return;
            if (!has(_definitions2.default.methods, obj.name)) return;

            var methods = _definitions2.default.methods[obj.name];
            if (!has(methods, prop.name)) return;

            if (path.scope.getBindingIdentifier(obj.name)) return;

            if (obj.name === "Object" && prop.name === "defineProperty" && path.parentPath.isCallExpression()) {
              var call = path.parentPath.node;
              if (call.arguments.length === 3 && t.isLiteral(call.arguments[1])) return;
            }

            var moduleName = getRuntimeModuleName(state.opts);
            path.replaceWith(state.addImport(moduleName + "/core-js/" + methods[prop.name], "default", obj.name + "$" + prop.name));
          },
          exit: function exit(path, state) {
            if (state.opts.polyfill === false) return;
            if (!path.isReferenced()) return;

            var node = path.node;

            var obj = node.object;

            if (!has(_definitions2.default.builtins, obj.name)) return;
            if (path.scope.getBindingIdentifier(obj.name)) return;

            var moduleName = getRuntimeModuleName(state.opts);
            path.replaceWith(t.memberExpression(state.addImport(moduleName + "/core-js/" + _definitions2.default.builtins[obj.name], "default", obj.name), node.property, node.computed));
          }
        }
      }
    };
  };

  var _definitions = $__require("e2");

  var _definitions2 = _interopRequireDefault(_definitions);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.definitions = _definitions2.default;
});
$__System.registerDynamic("e4", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("classConstructorCall");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("e5", ["17", "d8", "e4", "10"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _symbol = $__require("d8");

  var _symbol2 = _interopRequireDefault(_symbol);

  exports.default = function (_ref) {
    var t = _ref.types;

    var ALREADY_VISITED = (0, _symbol2.default)();

    function findConstructorCall(path) {
      var methods = path.get("body.body");

      for (var _iterator = methods, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref2;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref2 = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref2 = _i.value;
        }

        var method = _ref2;

        if (method.node.kind === "constructorCall") {
          return method;
        }
      }

      return null;
    }

    function handleClassWithCall(constructorCall, classPath) {
      var _classPath = classPath,
          node = _classPath.node;

      var ref = node.id || classPath.scope.generateUidIdentifier("class");

      if (classPath.parentPath.isExportDefaultDeclaration()) {
        classPath = classPath.parentPath;
        classPath.insertAfter(t.exportDefaultDeclaration(ref));
      }

      classPath.replaceWithMultiple(buildWrapper({
        CLASS_REF: classPath.scope.generateUidIdentifier(ref.name),
        CALL_REF: classPath.scope.generateUidIdentifier(ref.name + "Call"),
        CALL: t.functionExpression(null, constructorCall.node.params, constructorCall.node.body),
        CLASS: t.toExpression(node),
        WRAPPER_REF: ref
      }));

      constructorCall.remove();
    }

    return {
      inherits: $__require("e4"),

      visitor: {
        Class: function Class(path) {
          if (path.node[ALREADY_VISITED]) return;
          path.node[ALREADY_VISITED] = true;

          var constructorCall = findConstructorCall(path);

          if (constructorCall) {
            handleClassWithCall(constructorCall, path);
          } else {
            return;
          }
        }
      }
    };
  };

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var buildWrapper = (0, _babelTemplate2.default)("\n  let CLASS_REF = CLASS;\n  var CALL_REF = CALL;\n  var WRAPPER_REF = function (...args) {\n    if (this instanceof WRAPPER_REF) {\n      return Reflect.construct(CLASS_REF, args);\n    } else {\n      return CALL_REF.apply(this, args);\n    }\n  };\n  WRAPPER_REF.__proto__ = CLASS_REF;\n  WRAPPER_REF;\n");

  module.exports = exports["default"];
});
$__System.registerDynamic("e6", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("exportExtensions");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("e7", ["e6"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (_ref) {
    var t = _ref.types;

    function build(node, nodes, scope) {
      var first = node.specifiers[0];
      if (!t.isExportNamespaceSpecifier(first) && !t.isExportDefaultSpecifier(first)) return;

      var specifier = node.specifiers.shift();
      var uid = scope.generateUidIdentifier(specifier.exported.name);

      var newSpecifier = void 0;
      if (t.isExportNamespaceSpecifier(specifier)) {
        newSpecifier = t.importNamespaceSpecifier(uid);
      } else {
        newSpecifier = t.importDefaultSpecifier(uid);
      }

      nodes.push(t.importDeclaration([newSpecifier], node.source));
      nodes.push(t.exportNamedDeclaration(null, [t.exportSpecifier(uid, specifier.exported)]));

      build(node, nodes, scope);
    }

    return {
      inherits: $__require("e6"),

      visitor: {
        ExportNamedDeclaration: function ExportNamedDeclaration(path) {
          var node = path.node,
              scope = path.scope;

          var nodes = [];
          build(node, nodes, scope);
          if (!nodes.length) return;

          if (node.specifiers.length >= 1) {
            nodes.push(node);
          }
          path.replaceWithMultiple(nodes);
        }
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("e8", ["e9", "e5", "e7"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _babelPresetStage = $__require("e9");

  var _babelPresetStage2 = _interopRequireDefault(_babelPresetStage);

  var _babelPluginTransformClassConstructorCall = $__require("e5");

  var _babelPluginTransformClassConstructorCall2 = _interopRequireDefault(_babelPluginTransformClassConstructorCall);

  var _babelPluginTransformExportExtensions = $__require("e7");

  var _babelPluginTransformExportExtensions2 = _interopRequireDefault(_babelPluginTransformExportExtensions);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.default = {
    presets: [_babelPresetStage2.default],
    plugins: [_babelPluginTransformClassConstructorCall2.default, _babelPluginTransformExportExtensions2.default]
  };
  module.exports = exports["default"];
});
$__System.registerDynamic("ea", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("classProperties");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("eb", ["17", "ea", "ec", "10"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var t = _ref.types;

    var findBareSupers = {
      Super: function Super(path) {
        if (path.parentPath.isCallExpression({ callee: path.node })) {
          this.push(path.parentPath);
        }
      }
    };

    var referenceVisitor = {
      ReferencedIdentifier: function ReferencedIdentifier(path) {
        if (this.scope.hasOwnBinding(path.node.name)) {
          this.collision = true;
          path.skip();
        }
      }
    };

    var buildObjectDefineProperty = (0, _babelTemplate2.default)("\n    Object.defineProperty(REF, KEY, {\n      // configurable is false by default\n      enumerable: true,\n      writable: true,\n      value: VALUE\n    });\n  ");

    var buildClassPropertySpec = function buildClassPropertySpec(ref, _ref2) {
      var key = _ref2.key,
          value = _ref2.value,
          computed = _ref2.computed;
      return buildObjectDefineProperty({
        REF: ref,
        KEY: t.isIdentifier(key) && !computed ? t.stringLiteral(key.name) : key,
        VALUE: value ? value : t.identifier("undefined")
      });
    };

    var buildClassPropertyNonSpec = function buildClassPropertyNonSpec(ref, _ref3) {
      var key = _ref3.key,
          value = _ref3.value,
          computed = _ref3.computed;
      return t.expressionStatement(t.assignmentExpression("=", t.memberExpression(ref, key, computed || t.isLiteral(key)), value));
    };

    return {
      inherits: $__require("ea"),

      visitor: {
        Class: function Class(path, state) {
          var buildClassProperty = state.opts.spec ? buildClassPropertySpec : buildClassPropertyNonSpec;
          var isDerived = !!path.node.superClass;
          var constructor = void 0;
          var props = [];
          var body = path.get("body");

          for (var _iterator = body.get("body"), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
            var _ref4;

            if (_isArray) {
              if (_i >= _iterator.length) break;
              _ref4 = _iterator[_i++];
            } else {
              _i = _iterator.next();
              if (_i.done) break;
              _ref4 = _i.value;
            }

            var _path = _ref4;

            if (_path.isClassProperty()) {
              props.push(_path);
            } else if (_path.isClassMethod({ kind: "constructor" })) {
              constructor = _path;
            }
          }

          if (!props.length) return;

          var nodes = [];
          var ref = void 0;

          if (path.isClassExpression() || !path.node.id) {
            (0, _babelHelperFunctionName2.default)(path);
            ref = path.scope.generateUidIdentifier("class");
          } else {
            ref = path.node.id;
          }

          var instanceBody = [];

          for (var _iterator2 = props, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
            var _ref5;

            if (_isArray2) {
              if (_i2 >= _iterator2.length) break;
              _ref5 = _iterator2[_i2++];
            } else {
              _i2 = _iterator2.next();
              if (_i2.done) break;
              _ref5 = _i2.value;
            }

            var _prop = _ref5;

            var propNode = _prop.node;
            if (propNode.decorators && propNode.decorators.length > 0) continue;

            if (!state.opts.spec && !propNode.value) continue;

            var isStatic = propNode.static;

            if (isStatic) {
              nodes.push(buildClassProperty(ref, propNode));
            } else {
              if (!propNode.value) continue;
              instanceBody.push(buildClassProperty(t.thisExpression(), propNode));
            }
          }

          if (instanceBody.length) {
            if (!constructor) {
              var newConstructor = t.classMethod("constructor", t.identifier("constructor"), [], t.blockStatement([]));
              if (isDerived) {
                newConstructor.params = [t.restElement(t.identifier("args"))];
                newConstructor.body.body.push(t.returnStatement(t.callExpression(t.super(), [t.spreadElement(t.identifier("args"))])));
              }

              var _body$unshiftContaine = body.unshiftContainer("body", newConstructor);

              constructor = _body$unshiftContaine[0];
            }

            var collisionState = {
              collision: false,
              scope: constructor.scope
            };

            for (var _iterator3 = props, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
              var _ref6;

              if (_isArray3) {
                if (_i3 >= _iterator3.length) break;
                _ref6 = _iterator3[_i3++];
              } else {
                _i3 = _iterator3.next();
                if (_i3.done) break;
                _ref6 = _i3.value;
              }

              var prop = _ref6;

              prop.traverse(referenceVisitor, collisionState);
              if (collisionState.collision) break;
            }

            if (collisionState.collision) {
              var initialisePropsRef = path.scope.generateUidIdentifier("initialiseProps");

              nodes.push(t.variableDeclaration("var", [t.variableDeclarator(initialisePropsRef, t.functionExpression(null, [], t.blockStatement(instanceBody)))]));

              instanceBody = [t.expressionStatement(t.callExpression(t.memberExpression(initialisePropsRef, t.identifier("call")), [t.thisExpression()]))];
            }

            if (isDerived) {
              var bareSupers = [];
              constructor.traverse(findBareSupers, bareSupers);
              for (var _iterator4 = bareSupers, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
                var _ref7;

                if (_isArray4) {
                  if (_i4 >= _iterator4.length) break;
                  _ref7 = _iterator4[_i4++];
                } else {
                  _i4 = _iterator4.next();
                  if (_i4.done) break;
                  _ref7 = _i4.value;
                }

                var bareSuper = _ref7;

                bareSuper.insertAfter(instanceBody);
              }
            } else {
              constructor.get("body").unshiftContainer("body", instanceBody);
            }
          }

          for (var _iterator5 = props, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
            var _ref8;

            if (_isArray5) {
              if (_i5 >= _iterator5.length) break;
              _ref8 = _iterator5[_i5++];
            } else {
              _i5 = _iterator5.next();
              if (_i5.done) break;
              _ref8 = _i5.value;
            }

            var _prop2 = _ref8;

            _prop2.remove();
          }

          if (!nodes.length) return;

          if (path.isClassExpression()) {
            path.scope.push({ id: ref });
            path.replaceWith(t.assignmentExpression("=", ref, path.node));
          } else {
            if (!path.node.id) {
              path.node.id = ref;
            }

            if (path.parentPath.isExportDeclaration()) {
              path = path.parentPath;
            }
          }

          path.insertAfter(nodes);
        },
        ArrowFunctionExpression: function ArrowFunctionExpression(path) {
          var classExp = path.get("body");
          if (!classExp.isClassExpression()) return;

          var body = classExp.get("body");
          var members = body.get("body");
          if (members.some(function (member) {
            return member.isClassProperty();
          })) {
            path.ensureBlock();
          }
        }
      }
    };
  };

  var _babelHelperFunctionName = $__require("ec");

  var _babelHelperFunctionName2 = _interopRequireDefault(_babelHelperFunctionName);

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("ed", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("decorators");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("ee", ["17", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = bindifyDecorators;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function bindifyDecorators(decorators) {
    for (var _iterator = decorators, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var decoratorPath = _ref;

      var decorator = decoratorPath.node;
      var expression = decorator.expression;
      if (!t.isMemberExpression(expression)) continue;

      var temp = decoratorPath.scope.maybeGenerateMemoised(expression.object);
      var ref = void 0;

      var nodes = [];

      if (temp) {
        ref = temp;
        nodes.push(t.assignmentExpression("=", temp, expression.object));
      } else {
        ref = expression.object;
      }

      nodes.push(t.callExpression(t.memberExpression(t.memberExpression(ref, expression.property, expression.computed), t.identifier("bind")), [ref]));

      if (nodes.length === 1) {
        decorator.expression = nodes[0];
      } else {
        decorator.expression = t.sequenceExpression(nodes);
      }
    }
  }
  module.exports = exports["default"];
});
$__System.registerDynamic("ef", ["17", "ee", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (classPath) {
    classPath.assertClass();

    var memoisedExpressions = [];

    function maybeMemoise(path) {
      if (!path.node || path.isPure()) return;

      var uid = classPath.scope.generateDeclaredUidIdentifier();
      memoisedExpressions.push(t.assignmentExpression("=", uid, path.node));
      path.replaceWith(uid);
    }

    function memoiseDecorators(paths) {
      if (!Array.isArray(paths) || !paths.length) return;

      paths = paths.reverse();

      (0, _babelHelperBindifyDecorators2.default)(paths);

      for (var _iterator = paths, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var path = _ref;

        maybeMemoise(path);
      }
    }

    maybeMemoise(classPath.get("superClass"));
    memoiseDecorators(classPath.get("decorators"), true);

    var methods = classPath.get("body.body");
    for (var _iterator2 = methods, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
      var _ref2;

      if (_isArray2) {
        if (_i2 >= _iterator2.length) break;
        _ref2 = _iterator2[_i2++];
      } else {
        _i2 = _iterator2.next();
        if (_i2.done) break;
        _ref2 = _i2.value;
      }

      var methodPath = _ref2;

      if (methodPath.is("computed")) {
        maybeMemoise(methodPath.get("key"));
      }

      if (methodPath.has("decorators")) {
        memoiseDecorators(classPath.get("decorators"));
      }
    }

    if (memoisedExpressions) {
      classPath.insertBefore(memoisedExpressions.map(function (expr) {
        return t.expressionStatement(expr);
      }));
    }
  };

  var _babelHelperBindifyDecorators = $__require("ee");

  var _babelHelperBindifyDecorators2 = _interopRequireDefault(_babelHelperBindifyDecorators);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("f0", ["d9", "17", "ed", "10", "ef"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _create = $__require("d9");

  var _create2 = _interopRequireDefault(_create);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var t = _ref.types;

    function cleanDecorators(decorators) {
      return decorators.reverse().map(function (dec) {
        return dec.expression;
      });
    }

    function transformClass(path, ref, state) {
      var nodes = [];

      state;

      var classDecorators = path.node.decorators;
      if (classDecorators) {
        path.node.decorators = null;
        classDecorators = cleanDecorators(classDecorators);

        for (var _iterator = classDecorators, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
          var _ref2;

          if (_isArray) {
            if (_i >= _iterator.length) break;
            _ref2 = _iterator[_i++];
          } else {
            _i = _iterator.next();
            if (_i.done) break;
            _ref2 = _i.value;
          }

          var decorator = _ref2;

          nodes.push(buildClassDecorator({
            CLASS_REF: ref,
            DECORATOR: decorator
          }));
        }
      }

      var map = (0, _create2.default)(null);

      for (var _iterator2 = path.get("body.body"), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref3;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref3 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref3 = _i2.value;
        }

        var method = _ref3;

        var decorators = method.node.decorators;
        if (!decorators) continue;

        var _alias = t.toKeyAlias(method.node);
        map[_alias] = map[_alias] || [];
        map[_alias].push(method.node);

        method.remove();
      }

      for (var alias in map) {
        var items = map[alias];

        items;
      }

      return nodes;
    }

    function hasDecorators(path) {
      if (path.isClass()) {
        if (path.node.decorators) return true;

        for (var _iterator3 = path.node.body.body, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
          var _ref4;

          if (_isArray3) {
            if (_i3 >= _iterator3.length) break;
            _ref4 = _iterator3[_i3++];
          } else {
            _i3 = _iterator3.next();
            if (_i3.done) break;
            _ref4 = _i3.value;
          }

          var method = _ref4;

          if (method.decorators) {
            return true;
          }
        }
      } else if (path.isObjectExpression()) {
        for (var _iterator4 = path.node.properties, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
          var _ref5;

          if (_isArray4) {
            if (_i4 >= _iterator4.length) break;
            _ref5 = _iterator4[_i4++];
          } else {
            _i4 = _iterator4.next();
            if (_i4.done) break;
            _ref5 = _i4.value;
          }

          var prop = _ref5;

          if (prop.decorators) {
            return true;
          }
        }
      }

      return false;
    }

    function doError(path) {
      throw path.buildCodeFrameError("Decorators are not officially supported yet in 6.x pending a proposal update.\nHowever, if you need to use them you can install the legacy decorators transform with:\n\nnpm install babel-plugin-transform-decorators-legacy --save-dev\n\nand add the following line to your .babelrc file:\n\n{\n  \"plugins\": [\"transform-decorators-legacy\"]\n}\n\nThe repo url is: https://github.com/loganfsmyth/babel-plugin-transform-decorators-legacy.\n    ");
    }

    return {
      inherits: $__require("ed"),

      visitor: {
        ClassExpression: function ClassExpression(path) {
          if (!hasDecorators(path)) return;
          doError(path);

          (0, _babelHelperExplodeClass2.default)(path);

          var ref = path.scope.generateDeclaredUidIdentifier("ref");
          var nodes = [];

          nodes.push(t.assignmentExpression("=", ref, path.node));

          nodes = nodes.concat(transformClass(path, ref, this));

          nodes.push(ref);

          path.replaceWith(t.sequenceExpression(nodes));
        },
        ClassDeclaration: function ClassDeclaration(path) {
          if (!hasDecorators(path)) return;
          doError(path);
          (0, _babelHelperExplodeClass2.default)(path);

          var ref = path.node.id;
          var nodes = [];

          nodes = nodes.concat(transformClass(path, ref, this).map(function (expr) {
            return t.expressionStatement(expr);
          }));
          nodes.push(t.expressionStatement(ref));

          path.insertAfter(nodes);
        },
        ObjectExpression: function ObjectExpression(path) {
          if (!hasDecorators(path)) return;
          doError(path);
        }
      }
    };
  };

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  var _babelHelperExplodeClass = $__require("ef");

  var _babelHelperExplodeClass2 = _interopRequireDefault(_babelHelperExplodeClass);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var buildClassDecorator = (0, _babelTemplate2.default)("\n  CLASS_REF = DECORATOR(CLASS_REF) || CLASS_REF;\n");

  module.exports = exports["default"];
});
$__System.registerDynamic("f1", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("dynamicImport");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("e9", ["f2", "eb", "f0", "f1"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _babelPresetStage = $__require("f2");

  var _babelPresetStage2 = _interopRequireDefault(_babelPresetStage);

  var _babelPluginTransformClassProperties = $__require("eb");

  var _babelPluginTransformClassProperties2 = _interopRequireDefault(_babelPluginTransformClassProperties);

  var _babelPluginTransformDecorators = $__require("f0");

  var _babelPluginTransformDecorators2 = _interopRequireDefault(_babelPluginTransformDecorators);

  var _babelPluginSyntaxDynamicImport = $__require("f1");

  var _babelPluginSyntaxDynamicImport2 = _interopRequireDefault(_babelPluginSyntaxDynamicImport);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.default = {
    presets: [_babelPresetStage2.default],
    plugins: [_babelPluginSyntaxDynamicImport2.default, _babelPluginTransformClassProperties2.default, _babelPluginTransformDecorators2.default]
  };
  module.exports = exports["default"];
});
$__System.registerDynamic("f3", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("trailingFunctionCommas");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("f4", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("asyncFunctions");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("f5", ["f4", "f6"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      inherits: $__require("f4"),

      visitor: {
        Function: function Function(path, state) {
          if (!path.node.async || path.node.generator) return;

          (0, _babelHelperRemapAsyncToGenerator2.default)(path, state.file, {
            wrapAsync: state.addHelper("asyncToGenerator")
          });
        }
      }
    };
  };

  var _babelHelperRemapAsyncToGenerator = $__require("f6");

  var _babelHelperRemapAsyncToGenerator2 = _interopRequireDefault(_babelHelperRemapAsyncToGenerator);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("f7", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("exponentiationOperator");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("f8", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (node, nodes, file, scope, allowedSingleIdent) {
    var obj = void 0;
    if (t.isIdentifier(node) && allowedSingleIdent) {
      obj = node;
    } else {
      obj = getObjRef(node, nodes, file, scope);
    }

    var ref = void 0,
        uid = void 0;

    if (t.isIdentifier(node)) {
      ref = node;
      uid = obj;
    } else {
      var prop = getPropRef(node, nodes, file, scope);
      var computed = node.computed || t.isLiteral(prop);
      uid = ref = t.memberExpression(obj, prop, computed);
    }

    return {
      uid: uid,
      ref: ref
    };
  };

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function getObjRef(node, nodes, file, scope) {
    var ref = void 0;
    if (t.isSuper(node)) {
      return node;
    } else if (t.isIdentifier(node)) {
      if (scope.hasBinding(node.name)) {
        return node;
      } else {
        ref = node;
      }
    } else if (t.isMemberExpression(node)) {
      ref = node.object;

      if (t.isSuper(ref) || t.isIdentifier(ref) && scope.hasBinding(ref.name)) {
        return ref;
      }
    } else {
      throw new Error("We can't explode this node type " + node.type);
    }

    var temp = scope.generateUidIdentifierBasedOnNode(ref);
    nodes.push(t.variableDeclaration("var", [t.variableDeclarator(temp, ref)]));
    return temp;
  }

  function getPropRef(node, nodes, file, scope) {
    var prop = node.property;
    var key = t.toComputedKey(node, prop);
    if (t.isLiteral(key) && t.isPureish(key)) return key;

    var temp = scope.generateUidIdentifierBasedOnNode(prop);
    nodes.push(t.variableDeclaration("var", [t.variableDeclarator(temp, prop)]));
    return temp;
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("f9", ["f8", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (opts) {
    var visitor = {};

    function isAssignment(node) {
      return node && node.operator === opts.operator + "=";
    }

    function buildAssignment(left, right) {
      return t.assignmentExpression("=", left, right);
    }

    visitor.ExpressionStatement = function (path, file) {
      if (path.isCompletionRecord()) return;

      var expr = path.node.expression;
      if (!isAssignment(expr)) return;

      var nodes = [];
      var exploded = (0, _babelHelperExplodeAssignableExpression2.default)(expr.left, nodes, file, path.scope, true);

      nodes.push(t.expressionStatement(buildAssignment(exploded.ref, opts.build(exploded.uid, expr.right))));

      path.replaceWithMultiple(nodes);
    };

    visitor.AssignmentExpression = function (path, file) {
      var node = path.node,
          scope = path.scope;

      if (!isAssignment(node)) return;

      var nodes = [];
      var exploded = (0, _babelHelperExplodeAssignableExpression2.default)(node.left, nodes, file, scope);
      nodes.push(buildAssignment(exploded.ref, opts.build(exploded.uid, node.right)));
      path.replaceWithMultiple(nodes);
    };

    visitor.BinaryExpression = function (path) {
      var node = path.node;

      if (node.operator === opts.operator) {
        path.replaceWith(opts.build(node.left, node.right));
      }
    };

    return visitor;
  };

  var _babelHelperExplodeAssignableExpression = $__require("f8");

  var _babelHelperExplodeAssignableExpression2 = _interopRequireDefault(_babelHelperExplodeAssignableExpression);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("fa", ["f7", "f9"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (_ref) {
    var t = _ref.types;

    return {
      inherits: $__require("f7"),

      visitor: (0, _babelHelperBuilderBinaryAssignmentOperatorVisitor2.default)({
        operator: "**",

        build: function build(left, right) {
          return t.callExpression(t.memberExpression(t.identifier("Math"), t.identifier("pow")), [left, right]);
        }
      })
    };
  };

  var _babelHelperBuilderBinaryAssignmentOperatorVisitor = $__require("f9");

  var _babelHelperBuilderBinaryAssignmentOperatorVisitor2 = _interopRequireDefault(_babelHelperBuilderBinaryAssignmentOperatorVisitor);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("fb", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("objectRestSpread");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("fc", ["17", "fb"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var t = _ref.types;

    function hasRestProperty(path) {
      var foundRestProperty = false;
      path.traverse({
        RestProperty: function RestProperty() {
          foundRestProperty = true;
          path.stop();
        }
      });
      return foundRestProperty;
    }

    function hasSpread(node) {
      for (var _iterator = node.properties, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref2;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref2 = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref2 = _i.value;
        }

        var prop = _ref2;

        if (t.isSpreadProperty(prop)) {
          return true;
        }
      }
      return false;
    }

    function createObjectSpread(file, props, objRef) {
      var restProperty = props.pop();

      var keys = [];
      for (var _iterator2 = props, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref3;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref3 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref3 = _i2.value;
        }

        var prop = _ref3;

        var key = prop.key;
        if (t.isIdentifier(key) && !prop.computed) {
          key = t.stringLiteral(prop.key.name);
        }
        keys.push(key);
      }

      return [restProperty.argument, t.callExpression(file.addHelper("objectWithoutProperties"), [objRef, t.arrayExpression(keys)])];
    }

    function replaceRestProperty(parentPath, paramPath, i, numParams) {
      if (paramPath.isAssignmentPattern()) {
        replaceRestProperty(parentPath, paramPath.get("left"), i, numParams);
        return;
      }

      if (paramPath.isObjectPattern() && hasRestProperty(paramPath)) {
        var uid = parentPath.scope.generateUidIdentifier("ref");

        var declar = t.variableDeclaration("let", [t.variableDeclarator(paramPath.node, uid)]);
        declar._blockHoist = i ? numParams - i : 1;

        parentPath.ensureBlock();
        parentPath.get("body").unshiftContainer("body", declar);
        paramPath.replaceWith(uid);
      }
    }

    return {
      inherits: $__require("fb"),

      visitor: {
        Function: function Function(path) {
          var params = path.get("params");
          for (var i = 0; i < params.length; i++) {
            replaceRestProperty(params[i].parentPath, params[i], i, params.length);
          }
        },
        VariableDeclarator: function VariableDeclarator(path, file) {
          if (!path.get("id").isObjectPattern()) {
            return;
          }

          var insertionPath = path;

          path.get("id").traverse({
            RestProperty: function RestProperty(path) {
              if (this.originalPath.node.id.properties.length > 1 && !t.isIdentifier(this.originalPath.node.init)) {
                var initRef = path.scope.generateUidIdentifierBasedOnNode(this.originalPath.node.init, "ref");

                this.originalPath.insertBefore(t.variableDeclarator(initRef, this.originalPath.node.init));

                this.originalPath.replaceWith(t.variableDeclarator(this.originalPath.node.id, initRef));

                return;
              }

              var ref = this.originalPath.node.init;

              path.findParent(function (path) {
                if (path.isObjectProperty()) {
                  ref = t.memberExpression(ref, t.identifier(path.node.key.name));
                } else if (path.isVariableDeclarator()) {
                  return true;
                }
              });

              var _createObjectSpread = createObjectSpread(file, path.parentPath.node.properties, ref),
                  argument = _createObjectSpread[0],
                  callExpression = _createObjectSpread[1];

              insertionPath.insertAfter(t.variableDeclarator(argument, callExpression));

              insertionPath = insertionPath.getSibling(insertionPath.key + 1);

              if (path.parentPath.node.properties.length === 0) {
                path.findParent(function (path) {
                  return path.isObjectProperty() || path.isVariableDeclarator();
                }).remove();
              }
            }
          }, {
            originalPath: path
          });
        },
        ExportNamedDeclaration: function ExportNamedDeclaration(path) {
          var declaration = path.get("declaration");
          if (!declaration.isVariableDeclaration()) return;
          if (!hasRestProperty(declaration)) return;

          var specifiers = [];

          for (var name in path.getOuterBindingIdentifiers(path)) {
            var id = t.identifier(name);
            specifiers.push(t.exportSpecifier(id, id));
          }

          path.replaceWith(declaration.node);
          path.insertAfter(t.exportNamedDeclaration(null, specifiers));
        },
        CatchClause: function CatchClause(path) {
          var paramPath = path.get("param");
          replaceRestProperty(paramPath.parentPath, paramPath);
        },
        AssignmentExpression: function AssignmentExpression(path, file) {
          var leftPath = path.get("left");
          if (leftPath.isObjectPattern() && hasRestProperty(leftPath)) {
            var nodes = [];

            var ref = void 0;
            if (path.isCompletionRecord() || path.parentPath.isExpressionStatement()) {
              ref = path.scope.generateUidIdentifierBasedOnNode(path.node.right, "ref");

              nodes.push(t.variableDeclaration("var", [t.variableDeclarator(ref, path.node.right)]));
            }

            var _createObjectSpread2 = createObjectSpread(file, path.node.left.properties, ref),
                argument = _createObjectSpread2[0],
                callExpression = _createObjectSpread2[1];

            var nodeWithoutSpread = t.clone(path.node);
            nodeWithoutSpread.right = ref;
            nodes.push(t.expressionStatement(nodeWithoutSpread));
            nodes.push(t.toStatement(t.assignmentExpression("=", argument, callExpression)));

            if (ref) {
              nodes.push(t.expressionStatement(ref));
            }

            path.replaceWithMultiple(nodes);
          }
        },
        ForXStatement: function ForXStatement(path) {
          var node = path.node,
              scope = path.scope;

          var leftPath = path.get("left");
          var left = node.left;

          if (t.isObjectPattern(left) && hasRestProperty(leftPath)) {
            var temp = scope.generateUidIdentifier("ref");

            node.left = t.variableDeclaration("var", [t.variableDeclarator(temp)]);

            path.ensureBlock();

            node.body.body.unshift(t.variableDeclaration("var", [t.variableDeclarator(left, temp)]));

            return;
          }

          if (!t.isVariableDeclaration(left)) return;

          var pattern = left.declarations[0].id;
          if (!t.isObjectPattern(pattern)) return;

          var key = scope.generateUidIdentifier("ref");
          node.left = t.variableDeclaration(left.kind, [t.variableDeclarator(key, null)]);

          path.ensureBlock();

          node.body.body.unshift(t.variableDeclaration(node.left.kind, [t.variableDeclarator(pattern, key)]));
        },
        ObjectExpression: function ObjectExpression(path, file) {
          if (!hasSpread(path.node)) return;

          var useBuiltIns = file.opts.useBuiltIns || false;
          if (typeof useBuiltIns !== "boolean") {
            throw new Error("transform-object-rest-spread currently only accepts a boolean " + "option for useBuiltIns (defaults to false)");
          }

          var args = [];
          var props = [];

          function push() {
            if (!props.length) return;
            args.push(t.objectExpression(props));
            props = [];
          }

          for (var _iterator3 = path.node.properties, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
            var _ref4;

            if (_isArray3) {
              if (_i3 >= _iterator3.length) break;
              _ref4 = _iterator3[_i3++];
            } else {
              _i3 = _iterator3.next();
              if (_i3.done) break;
              _ref4 = _i3.value;
            }

            var prop = _ref4;

            if (t.isSpreadProperty(prop)) {
              push();
              args.push(prop.argument);
            } else {
              props.push(prop);
            }
          }

          push();

          if (!t.isObjectExpression(args[0])) {
            args.unshift(t.objectExpression([]));
          }

          var helper = useBuiltIns ? t.memberExpression(t.identifier("Object"), t.identifier("assign")) : file.addHelper("extends");

          path.replaceWith(t.callExpression(helper, args));
        }
      }
    };
  };

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("fd", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("asyncGenerators");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("fe", ["11", "10", "d5"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (path, helpers) {
    var node = path.node,
        scope = path.scope,
        parent = path.parent;

    var stepKey = scope.generateUidIdentifier("step");
    var stepValue = scope.generateUidIdentifier("value");
    var left = node.left;
    var declar = void 0;

    if (t.isIdentifier(left) || t.isPattern(left) || t.isMemberExpression(left)) {
      declar = t.expressionStatement(t.assignmentExpression("=", left, stepValue));
    } else if (t.isVariableDeclaration(left)) {
      declar = t.variableDeclaration(left.kind, [t.variableDeclarator(left.declarations[0].id, stepValue)]);
    }

    var template = buildForAwait();

    (0, _babelTraverse2.default)(template, forAwaitVisitor, null, {
      ITERATOR_HAD_ERROR_KEY: scope.generateUidIdentifier("didIteratorError"),
      ITERATOR_COMPLETION: scope.generateUidIdentifier("iteratorNormalCompletion"),
      ITERATOR_ERROR_KEY: scope.generateUidIdentifier("iteratorError"),
      ITERATOR_KEY: scope.generateUidIdentifier("iterator"),
      GET_ITERATOR: helpers.getAsyncIterator,
      OBJECT: node.right,
      STEP_VALUE: stepValue,
      STEP_KEY: stepKey,
      AWAIT: helpers.wrapAwait
    });

    template = template.body.body;

    var isLabeledParent = t.isLabeledStatement(parent);
    var tryBody = template[3].block.body;
    var loop = tryBody[0];

    if (isLabeledParent) {
      tryBody[0] = t.labeledStatement(parent.label, loop);
    }

    return {
      replaceParent: isLabeledParent,
      node: template,
      declar: declar,
      loop: loop
    };
  };

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  var _babelTraverse = $__require("d5");

  var _babelTraverse2 = _interopRequireDefault(_babelTraverse);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  var buildForAwait = (0, _babelTemplate2.default)("\n  function* wrapper() {\n    var ITERATOR_COMPLETION = true;\n    var ITERATOR_HAD_ERROR_KEY = false;\n    var ITERATOR_ERROR_KEY = undefined;\n    try {\n      for (\n        var ITERATOR_KEY = GET_ITERATOR(OBJECT), STEP_KEY, STEP_VALUE;\n        (\n          STEP_KEY = yield AWAIT(ITERATOR_KEY.next()),\n          ITERATOR_COMPLETION = STEP_KEY.done,\n          STEP_VALUE = yield AWAIT(STEP_KEY.value),\n          !ITERATOR_COMPLETION\n        );\n        ITERATOR_COMPLETION = true) {\n      }\n    } catch (err) {\n      ITERATOR_HAD_ERROR_KEY = true;\n      ITERATOR_ERROR_KEY = err;\n    } finally {\n      try {\n        if (!ITERATOR_COMPLETION && ITERATOR_KEY.return) {\n          yield AWAIT(ITERATOR_KEY.return());\n        }\n      } finally {\n        if (ITERATOR_HAD_ERROR_KEY) {\n          throw ITERATOR_ERROR_KEY;\n        }\n      }\n    }\n  }\n");

  var forAwaitVisitor = {
    noScope: true,

    Identifier: function Identifier(path, replacements) {
      if (path.node.name in replacements) {
        path.replaceInline(replacements[path.node.name]);
      }
    },
    CallExpression: function CallExpression(path, replacements) {
      var callee = path.node.callee;

      if (t.isIdentifier(callee) && callee.name === "AWAIT" && !replacements.AWAIT) {
        path.replaceWith(path.node.arguments[0]);
      }
    }
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("f6", ["ec", "10", "11", "fe"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (path, file, helpers) {
    if (!helpers) {
      helpers = { wrapAsync: file };
      file = null;
    }
    path.traverse(awaitVisitor, {
      file: file,
      wrapAwait: helpers.wrapAwait
    });

    if (path.isClassMethod() || path.isObjectMethod()) {
      classOrObjectMethod(path, helpers.wrapAsync);
    } else {
      plainFunction(path, helpers.wrapAsync);
    }
  };

  var _babelHelperFunctionName = $__require("ec");

  var _babelHelperFunctionName2 = _interopRequireDefault(_babelHelperFunctionName);

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _forAwait = $__require("fe");

  var _forAwait2 = _interopRequireDefault(_forAwait);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var buildWrapper = (0, _babelTemplate2.default)("\n  (() => {\n    var REF = FUNCTION;\n    return function NAME(PARAMS) {\n      return REF.apply(this, arguments);\n    };\n  })\n");

  var namedBuildWrapper = (0, _babelTemplate2.default)("\n  (() => {\n    var REF = FUNCTION;\n    function NAME(PARAMS) {\n      return REF.apply(this, arguments);\n    }\n    return NAME;\n  })\n");

  var awaitVisitor = {
    Function: function Function(path) {
      if (path.isArrowFunctionExpression() && !path.node.async) {
        path.arrowFunctionToShadowed();
        return;
      }
      path.skip();
    },
    AwaitExpression: function AwaitExpression(_ref, _ref2) {
      var node = _ref.node;
      var wrapAwait = _ref2.wrapAwait;

      node.type = "YieldExpression";
      if (wrapAwait) {
        node.argument = t.callExpression(wrapAwait, [node.argument]);
      }
    },
    ForAwaitStatement: function ForAwaitStatement(path, _ref3) {
      var file = _ref3.file,
          wrapAwait = _ref3.wrapAwait;
      var node = path.node;

      var build = (0, _forAwait2.default)(path, {
        getAsyncIterator: file.addHelper("asyncIterator"),
        wrapAwait: wrapAwait
      });

      var declar = build.declar,
          loop = build.loop;

      var block = loop.body;

      path.ensureBlock();

      if (declar) {
        block.body.push(declar);
      }

      block.body = block.body.concat(node.body.body);

      t.inherits(loop, node);
      t.inherits(loop.body, node.body);

      if (build.replaceParent) {
        path.parentPath.replaceWithMultiple(build.node);
        path.remove();
      } else {
        path.replaceWithMultiple(build.node);
      }
    }
  };

  function classOrObjectMethod(path, callId) {
    var node = path.node;
    var body = node.body;

    node.async = false;

    var container = t.functionExpression(null, [], t.blockStatement(body.body), true);
    container.shadow = true;
    body.body = [t.returnStatement(t.callExpression(t.callExpression(callId, [container]), []))];

    node.generator = false;
  }

  function plainFunction(path, callId) {
    var node = path.node;
    var isDeclaration = path.isFunctionDeclaration();
    var asyncFnId = node.id;
    var wrapper = buildWrapper;

    if (path.isArrowFunctionExpression()) {
      path.arrowFunctionToShadowed();
    } else if (!isDeclaration && asyncFnId) {
      wrapper = namedBuildWrapper;
    }

    node.async = false;
    node.generator = true;

    node.id = null;

    if (isDeclaration) {
      node.type = "FunctionExpression";
    }

    var built = t.callExpression(callId, [node]);
    var container = wrapper({
      NAME: asyncFnId,
      REF: path.scope.generateUidIdentifier("ref"),
      FUNCTION: built,
      PARAMS: node.params.reduce(function (acc, param) {
        acc.done = acc.done || t.isAssignmentPattern(param) || t.isRestElement(param);

        if (!acc.done) {
          acc.params.push(path.scope.generateUidIdentifier("x"));
        }

        return acc;
      }, {
        params: [],
        done: false
      }).params
    }).expression;

    if (isDeclaration) {
      var declar = t.variableDeclaration("let", [t.variableDeclarator(t.identifier(asyncFnId.name), t.callExpression(container, []))]);
      declar._blockHoist = true;

      path.replaceWith(declar);
    } else {
      var retFunction = container.body.body[1].argument;
      if (!asyncFnId) {
        (0, _babelHelperFunctionName2.default)({
          node: retFunction,
          parent: path.parent,
          scope: path.scope
        });
      }

      if (!retFunction || retFunction.id || node.params.length) {
        path.replaceWith(t.callExpression(container, []));
      } else {
        path.replaceWith(built);
      }
    }
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("ff", ["fd", "f6"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (_ref) {
    var t = _ref.types;

    var yieldStarVisitor = {
      Function: function Function(path) {
        path.skip();
      },
      YieldExpression: function YieldExpression(_ref2, state) {
        var node = _ref2.node;

        if (!node.delegate) return;
        var callee = state.addHelper("asyncGeneratorDelegate");
        node.argument = t.callExpression(callee, [t.callExpression(state.addHelper("asyncIterator"), [node.argument]), t.memberExpression(state.addHelper("asyncGenerator"), t.identifier("await"))]);
      }
    };

    return {
      inherits: $__require("fd"),
      visitor: {
        Function: function Function(path, state) {
          if (!path.node.async || !path.node.generator) return;

          path.traverse(yieldStarVisitor, state);

          (0, _babelHelperRemapAsyncToGenerator2.default)(path, state.file, {
            wrapAsync: t.memberExpression(state.addHelper("asyncGenerator"), t.identifier("wrap")),
            wrapAwait: t.memberExpression(state.addHelper("asyncGenerator"), t.identifier("await"))
          });
        }
      }
    };
  };

  var _babelHelperRemapAsyncToGenerator = $__require("f6");

  var _babelHelperRemapAsyncToGenerator2 = _interopRequireDefault(_babelHelperRemapAsyncToGenerator);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("f2", ["f3", "f5", "fa", "fc", "ff"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _babelPluginSyntaxTrailingFunctionCommas = $__require("f3");

  var _babelPluginSyntaxTrailingFunctionCommas2 = _interopRequireDefault(_babelPluginSyntaxTrailingFunctionCommas);

  var _babelPluginTransformAsyncToGenerator = $__require("f5");

  var _babelPluginTransformAsyncToGenerator2 = _interopRequireDefault(_babelPluginTransformAsyncToGenerator);

  var _babelPluginTransformExponentiationOperator = $__require("fa");

  var _babelPluginTransformExponentiationOperator2 = _interopRequireDefault(_babelPluginTransformExponentiationOperator);

  var _babelPluginTransformObjectRestSpread = $__require("fc");

  var _babelPluginTransformObjectRestSpread2 = _interopRequireDefault(_babelPluginTransformObjectRestSpread);

  var _babelPluginTransformAsyncGeneratorFunctions = $__require("ff");

  var _babelPluginTransformAsyncGeneratorFunctions2 = _interopRequireDefault(_babelPluginTransformAsyncGeneratorFunctions);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.default = {
    plugins: [_babelPluginSyntaxTrailingFunctionCommas2.default, _babelPluginTransformAsyncToGenerator2.default, _babelPluginTransformExponentiationOperator2.default, _babelPluginTransformAsyncGeneratorFunctions2.default, _babelPluginTransformObjectRestSpread2.default]
  };
  module.exports = exports["default"];
});
$__System.registerDynamic("100", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("flow");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("101", ["17", "100"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var t = _ref.types;

    var FLOW_DIRECTIVE = "@flow";

    return {
      inherits: $__require("100"),

      visitor: {
        Program: function Program(path, _ref2) {
          var comments = _ref2.file.ast.comments;

          for (var _iterator = comments, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
            var _ref3;

            if (_isArray) {
              if (_i >= _iterator.length) break;
              _ref3 = _iterator[_i++];
            } else {
              _i = _iterator.next();
              if (_i.done) break;
              _ref3 = _i.value;
            }

            var comment = _ref3;

            if (comment.value.indexOf(FLOW_DIRECTIVE) >= 0) {
              comment.value = comment.value.replace(FLOW_DIRECTIVE, "");

              if (!comment.value.replace(/\*/g, "").trim()) comment.ignore = true;
            }
          }
        },
        Flow: function Flow(path) {
          path.remove();
        },
        ClassProperty: function ClassProperty(path) {
          path.node.variance = null;
          path.node.typeAnnotation = null;
          if (!path.node.value) path.remove();
        },
        Class: function Class(path) {
          path.node.implements = null;

          path.get("body.body").forEach(function (child) {
            if (child.isClassProperty()) {
              child.node.typeAnnotation = null;
              if (!child.node.value) child.remove();
            }
          });
        },
        AssignmentPattern: function AssignmentPattern(_ref4) {
          var node = _ref4.node;

          node.left.optional = false;
        },
        Function: function Function(_ref5) {
          var node = _ref5.node;

          for (var i = 0; i < node.params.length; i++) {
            var param = node.params[i];
            param.optional = false;
          }
        },
        TypeCastExpression: function TypeCastExpression(path) {
          var node = path.node;

          do {
            node = node.expression;
          } while (t.isTypeCastExpression(node));
          path.replaceWith(node);
        }
      }
    };
  };

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("102", ["101"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _babelPluginTransformFlowStripTypes = $__require("101");

  var _babelPluginTransformFlowStripTypes2 = _interopRequireDefault(_babelPluginTransformFlowStripTypes);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.default = {
    plugins: [_babelPluginTransformFlowStripTypes2.default]
  };
  module.exports = exports["default"];
});
$__System.registerDynamic("103", ["104", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (opts) {
    var visitor = {};

    visitor.JSXNamespacedName = function (path) {
      throw path.buildCodeFrameError("Namespace tags are not supported. ReactJSX is not XML.");
    };

    visitor.JSXElement = {
      exit: function exit(path, file) {
        var callExpr = buildElementCall(path.get("openingElement"), file);

        callExpr.arguments = callExpr.arguments.concat(path.node.children);

        if (callExpr.arguments.length >= 3) {
          callExpr._prettyCall = true;
        }

        path.replaceWith(t.inherits(callExpr, path.node));
      }
    };

    return visitor;

    function convertJSXIdentifier(node, parent) {
      if (t.isJSXIdentifier(node)) {
        if (node.name === "this" && t.isReferenced(node, parent)) {
          return t.thisExpression();
        } else if (_esutils2.default.keyword.isIdentifierNameES6(node.name)) {
          node.type = "Identifier";
        } else {
          return t.stringLiteral(node.name);
        }
      } else if (t.isJSXMemberExpression(node)) {
        return t.memberExpression(convertJSXIdentifier(node.object, node), convertJSXIdentifier(node.property, node));
      }

      return node;
    }

    function convertAttributeValue(node) {
      if (t.isJSXExpressionContainer(node)) {
        return node.expression;
      } else {
        return node;
      }
    }

    function convertAttribute(node) {
      var value = convertAttributeValue(node.value || t.booleanLiteral(true));

      if (t.isStringLiteral(value) && !t.isJSXExpressionContainer(node.value)) {
        value.value = value.value.replace(/\n\s+/g, " ");
      }

      if (t.isValidIdentifier(node.name.name)) {
        node.name.type = "Identifier";
      } else {
        node.name = t.stringLiteral(node.name.name);
      }

      return t.inherits(t.objectProperty(node.name, value), node);
    }

    function buildElementCall(path, file) {
      path.parent.children = t.react.buildChildren(path.parent);

      var tagExpr = convertJSXIdentifier(path.node.name, path.node);
      var args = [];

      var tagName = void 0;
      if (t.isIdentifier(tagExpr)) {
        tagName = tagExpr.name;
      } else if (t.isLiteral(tagExpr)) {
        tagName = tagExpr.value;
      }

      var state = {
        tagExpr: tagExpr,
        tagName: tagName,
        args: args
      };

      if (opts.pre) {
        opts.pre(state, file);
      }

      var attribs = path.node.attributes;
      if (attribs.length) {
        attribs = buildOpeningElementAttributes(attribs, file);
      } else {
        attribs = t.nullLiteral();
      }

      args.push(attribs);

      if (opts.post) {
        opts.post(state, file);
      }

      return state.call || t.callExpression(state.callee, args);
    }

    function buildOpeningElementAttributes(attribs, file) {
      var _props = [];
      var objs = [];

      var useBuiltIns = file.opts.useBuiltIns || false;
      if (typeof useBuiltIns !== "boolean") {
        throw new Error("transform-react-jsx currently only accepts a boolean option for " + "useBuiltIns (defaults to false)");
      }

      function pushProps() {
        if (!_props.length) return;

        objs.push(t.objectExpression(_props));
        _props = [];
      }

      while (attribs.length) {
        var prop = attribs.shift();
        if (t.isJSXSpreadAttribute(prop)) {
          pushProps();
          objs.push(prop.argument);
        } else {
          _props.push(convertAttribute(prop));
        }
      }

      pushProps();

      if (objs.length === 1) {
        attribs = objs[0];
      } else {
        if (!t.isObjectExpression(objs[0])) {
          objs.unshift(t.objectExpression([]));
        }

        var helper = useBuiltIns ? t.memberExpression(t.identifier("Object"), t.identifier("assign")) : file.addHelper("extends");

        attribs = t.callExpression(helper, objs);
      }

      return attribs;
    }
  };

  var _esutils = $__require("104");

  var _esutils2 = _interopRequireDefault(_esutils);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("105", ["17", "106", "103"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var t = _ref.types;

    var JSX_ANNOTATION_REGEX = /\*?\s*@jsx\s+([^\s]+)/;

    var visitor = (0, _babelHelperBuilderReactJsx2.default)({
      pre: function pre(state) {
        var tagName = state.tagName;
        var args = state.args;
        if (t.react.isCompatTag(tagName)) {
          args.push(t.stringLiteral(tagName));
        } else {
          args.push(state.tagExpr);
        }
      },
      post: function post(state, pass) {
        state.callee = pass.get("jsxIdentifier")();
      }
    });

    visitor.Program = function (path, state) {
      var file = state.file;

      var id = state.opts.pragma || "React.createElement";

      for (var _iterator = file.ast.comments, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref2;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref2 = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref2 = _i.value;
        }

        var comment = _ref2;

        var matches = JSX_ANNOTATION_REGEX.exec(comment.value);
        if (matches) {
          id = matches[1];
          if (id === "React.DOM") {
            throw file.buildCodeFrameError(comment, "The @jsx React.DOM pragma has been deprecated as of React 0.12");
          } else {
            break;
          }
        }
      }

      state.set("jsxIdentifier", function () {
        return id.split(".").map(function (name) {
          return t.identifier(name);
        }).reduce(function (object, property) {
          return t.memberExpression(object, property);
        });
      });
    };

    return {
      inherits: _babelPluginSyntaxJsx2.default,
      visitor: visitor
    };
  };

  var _babelPluginSyntaxJsx = $__require("106");

  var _babelPluginSyntaxJsx2 = _interopRequireDefault(_babelPluginSyntaxJsx);

  var _babelHelperBuilderReactJsx = $__require("103");

  var _babelHelperBuilderReactJsx2 = _interopRequireDefault(_babelHelperBuilderReactJsx);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("106", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      manipulateOptions: function manipulateOptions(opts, parserOpts) {
        parserOpts.plugins.push("jsx");
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic('1a', ['c'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  // Copyright Joyent, Inc. and other Node contributors.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a
  // copy of this software and associated documentation files (the
  // "Software"), to deal in the Software without restriction, including
  // without limitation the rights to use, copy, modify, merge, publish,
  // distribute, sublicense, and/or sell copies of the Software, and to permit
  // persons to whom the Software is furnished to do so, subject to the
  // following conditions:
  //
  // The above copyright notice and this permission notice shall be included
  // in all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
  // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
  // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  // USE OR OTHER DEALINGS IN THE SOFTWARE.

  // resolves . and .. elements in a path array with directory names there
  // must be no slashes, empty elements, or device names (c:\) in the array
  // (so also no leading and trailing slashes - it does not distinguish
  // relative and absolute paths)
  var process = $__require('c');

  function normalizeArray(parts, allowAboveRoot) {
    // if the path tries to go above the root, `up` ends up > 0
    var up = 0;
    for (var i = parts.length - 1; i >= 0; i--) {
      var last = parts[i];
      if (last === '.') {
        parts.splice(i, 1);
      } else if (last === '..') {
        parts.splice(i, 1);
        up++;
      } else if (up) {
        parts.splice(i, 1);
        up--;
      }
    }

    // if the path is allowed to go above the root, restore leading ..s
    if (allowAboveRoot) {
      for (; up--; up) {
        parts.unshift('..');
      }
    }

    return parts;
  }

  // Split a filename into [root, dir, basename, ext], unix version
  // 'root' is just a slash, or nothing.
  var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
  var splitPath = function (filename) {
    return splitPathRe.exec(filename).slice(1);
  };

  // path.resolve([from ...], to)
  // posix version
  exports.resolve = function () {
    var resolvedPath = '',
        resolvedAbsolute = false;

    for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
      var path = i >= 0 ? arguments[i] : process.cwd();

      // Skip empty and invalid entries
      if (typeof path !== 'string') {
        throw new TypeError('Arguments to path.resolve must be strings');
      } else if (!path) {
        continue;
      }

      resolvedPath = path + '/' + resolvedPath;
      resolvedAbsolute = path.charAt(0) === '/';
    }

    // At this point the path should be resolved to a full absolute path, but
    // handle relative paths to be safe (might happen when process.cwd() fails)

    // Normalize the path
    resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function (p) {
      return !!p;
    }), !resolvedAbsolute).join('/');

    return (resolvedAbsolute ? '/' : '') + resolvedPath || '.';
  };

  // path.normalize(path)
  // posix version
  exports.normalize = function (path) {
    var isAbsolute = exports.isAbsolute(path),
        trailingSlash = substr(path, -1) === '/';

    // Normalize the path
    path = normalizeArray(filter(path.split('/'), function (p) {
      return !!p;
    }), !isAbsolute).join('/');

    if (!path && !isAbsolute) {
      path = '.';
    }
    if (path && trailingSlash) {
      path += '/';
    }

    return (isAbsolute ? '/' : '') + path;
  };

  // posix version
  exports.isAbsolute = function (path) {
    return path.charAt(0) === '/';
  };

  // posix version
  exports.join = function () {
    var paths = Array.prototype.slice.call(arguments, 0);
    return exports.normalize(filter(paths, function (p, index) {
      if (typeof p !== 'string') {
        throw new TypeError('Arguments to path.join must be strings');
      }
      return p;
    }).join('/'));
  };

  // path.relative(from, to)
  // posix version
  exports.relative = function (from, to) {
    from = exports.resolve(from).substr(1);
    to = exports.resolve(to).substr(1);

    function trim(arr) {
      var start = 0;
      for (; start < arr.length; start++) {
        if (arr[start] !== '') break;
      }

      var end = arr.length - 1;
      for (; end >= 0; end--) {
        if (arr[end] !== '') break;
      }

      if (start > end) return [];
      return arr.slice(start, end - start + 1);
    }

    var fromParts = trim(from.split('/'));
    var toParts = trim(to.split('/'));

    var length = Math.min(fromParts.length, toParts.length);
    var samePartsLength = length;
    for (var i = 0; i < length; i++) {
      if (fromParts[i] !== toParts[i]) {
        samePartsLength = i;
        break;
      }
    }

    var outputParts = [];
    for (var i = samePartsLength; i < fromParts.length; i++) {
      outputParts.push('..');
    }

    outputParts = outputParts.concat(toParts.slice(samePartsLength));

    return outputParts.join('/');
  };

  exports.sep = '/';
  exports.delimiter = ':';

  exports.dirname = function (path) {
    var result = splitPath(path),
        root = result[0],
        dir = result[1];

    if (!root && !dir) {
      // No dirname whatsoever
      return '.';
    }

    if (dir) {
      // It has a dirname, strip trailing slash
      dir = dir.substr(0, dir.length - 1);
    }

    return root + dir;
  };

  exports.basename = function (path, ext) {
    var f = splitPath(path)[2];
    // TODO: make this comparison case-insensitive on windows?
    if (ext && f.substr(-1 * ext.length) === ext) {
      f = f.substr(0, f.length - ext.length);
    }
    return f;
  };

  exports.extname = function (path) {
    return splitPath(path)[3];
  };

  function filter(xs, f) {
    if (xs.filter) return xs.filter(f);
    var res = [];
    for (var i = 0; i < xs.length; i++) {
      if (f(xs[i], i, xs)) res.push(xs[i]);
    }
    return res;
  }

  // String.prototype.substr - negative index don't work in IE8
  var substr = 'ab'.substr(-1) === 'b' ? function (str, start, len) {
    return str.substr(start, len);
  } : function (str, start, len) {
    if (start < 0) start = str.length + start;
    return str.substr(start, len);
  };
});
$__System.registerDynamic("107", ["1a"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (_ref) {
    var t = _ref.types;

    function addDisplayName(id, call) {
      var props = call.arguments[0].properties;
      var safe = true;

      for (var i = 0; i < props.length; i++) {
        var prop = props[i];
        var key = t.toComputedKey(prop);
        if (t.isLiteral(key, { value: "displayName" })) {
          safe = false;
          break;
        }
      }

      if (safe) {
        props.unshift(t.objectProperty(t.identifier("displayName"), t.stringLiteral(id)));
      }
    }

    var isCreateClassCallExpression = t.buildMatchMemberExpression("React.createClass");
    var isCreateClassAddon = function isCreateClassAddon(callee) {
      return callee.name === "createReactClass";
    };

    function isCreateClass(node) {
      if (!node || !t.isCallExpression(node)) return false;

      if (!isCreateClassCallExpression(node.callee) && !isCreateClassAddon(node.callee)) return false;

      var args = node.arguments;
      if (args.length !== 1) return false;

      var first = args[0];
      if (!t.isObjectExpression(first)) return false;

      return true;
    }

    return {
      visitor: {
        ExportDefaultDeclaration: function ExportDefaultDeclaration(_ref2, state) {
          var node = _ref2.node;

          if (isCreateClass(node.declaration)) {
            var displayName = state.file.opts.basename;

            if (displayName === "index") {
              displayName = _path2.default.basename(_path2.default.dirname(state.file.opts.filename));
            }

            addDisplayName(displayName, node.declaration);
          }
        },
        CallExpression: function CallExpression(path) {
          var node = path.node;

          if (!isCreateClass(node)) return;

          var id = void 0;

          path.find(function (path) {
            if (path.isAssignmentExpression()) {
              id = path.node.left;
            } else if (path.isObjectProperty()) {
              id = path.node.key;
            } else if (path.isVariableDeclarator()) {
              id = path.node.id;
            } else if (path.isStatement()) {
              return true;
            }

            if (id) return true;
          });

          if (!id) return;

          if (t.isMemberExpression(id)) {
            id = id.property;
          }

          if (t.isIdentifier(id)) {
            addDisplayName(id.name, node);
          }
        }
      }
    };
  };

  var _path = $__require("1a");

  var _path2 = _interopRequireDefault(_path);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("108", ["102", "105", "106", "107"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _babelPresetFlow = $__require("102");

  var _babelPresetFlow2 = _interopRequireDefault(_babelPresetFlow);

  var _babelPluginTransformReactJsx = $__require("105");

  var _babelPluginTransformReactJsx2 = _interopRequireDefault(_babelPluginTransformReactJsx);

  var _babelPluginSyntaxJsx = $__require("106");

  var _babelPluginSyntaxJsx2 = _interopRequireDefault(_babelPluginSyntaxJsx);

  var _babelPluginTransformReactDisplayName = $__require("107");

  var _babelPluginTransformReactDisplayName2 = _interopRequireDefault(_babelPluginTransformReactDisplayName);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.default = {
    presets: [_babelPresetFlow2.default],
    plugins: [_babelPluginTransformReactJsx2.default, _babelPluginSyntaxJsx2.default, _babelPluginTransformReactDisplayName2.default],
    env: {
      development: {
        plugins: []
      }
    }
  };
  module.exports = exports["default"];
});
$__System.registerDynamic("109", ["17"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var t = _ref.types;

    function isString(node) {
      return t.isLiteral(node) && typeof node.value === "string";
    }

    function buildBinaryExpression(left, right) {
      return t.binaryExpression("+", left, right);
    }

    return {
      visitor: {
        TaggedTemplateExpression: function TaggedTemplateExpression(path, state) {
          var node = path.node;

          var quasi = node.quasi;
          var args = [];

          var strings = [];
          var raw = [];

          for (var _iterator = quasi.quasis, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
            var _ref2;

            if (_isArray) {
              if (_i >= _iterator.length) break;
              _ref2 = _iterator[_i++];
            } else {
              _i = _iterator.next();
              if (_i.done) break;
              _ref2 = _i.value;
            }

            var elem = _ref2;

            strings.push(t.stringLiteral(elem.value.cooked));
            raw.push(t.stringLiteral(elem.value.raw));
          }

          strings = t.arrayExpression(strings);
          raw = t.arrayExpression(raw);

          var templateName = "taggedTemplateLiteral";
          if (state.opts.loose) templateName += "Loose";

          var templateObject = state.file.addTemplateObject(templateName, strings, raw);
          args.push(templateObject);

          args = args.concat(quasi.expressions);

          path.replaceWith(t.callExpression(node.tag, args));
        },
        TemplateLiteral: function TemplateLiteral(path, state) {
          var nodes = [];

          var expressions = path.get("expressions");

          for (var _iterator2 = path.node.quasis, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
            var _ref3;

            if (_isArray2) {
              if (_i2 >= _iterator2.length) break;
              _ref3 = _iterator2[_i2++];
            } else {
              _i2 = _iterator2.next();
              if (_i2.done) break;
              _ref3 = _i2.value;
            }

            var elem = _ref3;

            nodes.push(t.stringLiteral(elem.value.cooked));

            var expr = expressions.shift();
            if (expr) {
              if (state.opts.spec && !expr.isBaseType("string") && !expr.isBaseType("number")) {
                nodes.push(t.callExpression(t.identifier("String"), [expr.node]));
              } else {
                nodes.push(expr.node);
              }
            }
          }

          nodes = nodes.filter(function (n) {
            return !t.isLiteral(n, { value: "" });
          });

          if (!isString(nodes[0]) && !isString(nodes[1])) {
            nodes.unshift(t.stringLiteral(""));
          }

          if (nodes.length > 1) {
            var root = buildBinaryExpression(nodes.shift(), nodes.shift());

            for (var _iterator3 = nodes, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
              var _ref4;

              if (_isArray3) {
                if (_i3 >= _iterator3.length) break;
                _ref4 = _iterator3[_i3++];
              } else {
                _i3 = _iterator3.next();
                if (_i3.done) break;
                _ref4 = _i3.value;
              }

              var node = _ref4;

              root = buildBinaryExpression(root, node);
            }

            path.replaceWith(root);
          } else {
            path.replaceWith(nodes[0]);
          }
        }
      }
    };
  };

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("10a", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      visitor: {
        NumericLiteral: function NumericLiteral(_ref) {
          var node = _ref.node;

          if (node.extra && /^0[ob]/i.test(node.extra.raw)) {
            node.extra = undefined;
          }
        },
        StringLiteral: function StringLiteral(_ref2) {
          var node = _ref2.node;

          if (node.extra && /\\[u]/gi.test(node.extra.raw)) {
            node.extra = undefined;
          }
        }
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("10b", ["ec"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      visitor: {
        FunctionExpression: {
          exit: function exit(path) {
            if (path.key !== "value" && !path.parentPath.isObjectProperty()) {
              var replacement = (0, _babelHelperFunctionName2.default)(path);
              if (replacement) path.replaceWith(replacement);
            }
          }
        },

        ObjectProperty: function ObjectProperty(path) {
          var value = path.get("value");
          if (value.isFunction()) {
            var newNode = (0, _babelHelperFunctionName2.default)(value);
            if (newNode) value.replaceWith(newNode);
          }
        }
      }
    };
  };

  var _babelHelperFunctionName = $__require("ec");

  var _babelHelperFunctionName2 = _interopRequireDefault(_babelHelperFunctionName);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("10c", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (_ref) {
    var t = _ref.types;

    return {
      visitor: {
        ArrowFunctionExpression: function ArrowFunctionExpression(path, state) {
          if (state.opts.spec) {
            var node = path.node;

            if (node.shadow) return;

            node.shadow = { this: false };
            node.type = "FunctionExpression";

            var boundThis = t.thisExpression();
            boundThis._forceShadow = path;

            path.ensureBlock();
            path.get("body").unshiftContainer("body", t.expressionStatement(t.callExpression(state.addHelper("newArrowCheck"), [t.thisExpression(), boundThis])));

            path.replaceWith(t.callExpression(t.memberExpression(node, t.identifier("bind")), [t.thisExpression()]));
          } else {
            path.arrowFunctionToShadowed();
          }
        }
      }
    };
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("10d", ["17"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var t = _ref.types;

    function statementList(key, path) {
      var paths = path.get(key);

      for (var _iterator = paths, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref2;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref2 = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref2 = _i.value;
        }

        var _path = _ref2;

        var func = _path.node;
        if (!_path.isFunctionDeclaration()) continue;

        var declar = t.variableDeclaration("let", [t.variableDeclarator(func.id, t.toExpression(func))]);

        declar._blockHoist = 2;

        func.id = null;

        _path.replaceWith(declar);
      }
    }

    return {
      visitor: {
        BlockStatement: function BlockStatement(path) {
          var node = path.node,
              parent = path.parent;

          if (t.isFunction(parent, { body: node }) || t.isExportDeclaration(parent)) {
            return;
          }

          statementList("body", path);
        },
        SwitchCase: function SwitchCase(path) {
          statementList("consequent", path);
        }
      }
    };
  };

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("20", ["32"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _typeof2 = $__require("32");

  var _typeof3 = _interopRequireDefault(_typeof2);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.default = function (self, call) {
    if (!self) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }

    return call && ((typeof call === "undefined" ? "undefined" : (0, _typeof3.default)(call)) === "object" || typeof call === "function") ? call : self;
  };
});
$__System.registerDynamic('10e', ['10f', '110', '111', '112', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // Works with __proto__ only. Old v8 can't work with null proto objects.
  /* eslint-disable no-proto */
  var isObject = $__require('10f'),
      anObject = $__require('110');
  var check = function (O, proto) {
    anObject(O);
    if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
  };
  module.exports = {
    set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
    function (test, buggy, set) {
      try {
        set = $__require('111')(Function.call, $__require('112').f(Object.prototype, '__proto__').set, 2);
        set(test, []);
        buggy = !(test instanceof Array);
      } catch (e) {
        buggy = true;
      }
      return function setPrototypeOf(O, proto) {
        check(O, proto);
        if (buggy) O.__proto__ = proto;else set(O, proto);
        return O;
      };
    }({}, false) : undefined),
    check: check
  };
});
$__System.registerDynamic('113', ['cb', '10e', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 19.1.3.19 Object.setPrototypeOf(O, proto)
  var $export = $__require('cb');
  $export($export.S, 'Object', { setPrototypeOf: $__require('10e').set });
});
$__System.registerDynamic('114', ['113', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('113');
  module.exports = $__require('39').Object.setPrototypeOf;
});
$__System.registerDynamic("115", ["114"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("114"), __esModule: true };
});
$__System.registerDynamic("21", ["115", "d9", "32"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _setPrototypeOf = $__require("115");

  var _setPrototypeOf2 = _interopRequireDefault(_setPrototypeOf);

  var _create = $__require("d9");

  var _create2 = _interopRequireDefault(_create);

  var _typeof2 = $__require("32");

  var _typeof3 = _interopRequireDefault(_typeof2);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.default = function (subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === "undefined" ? "undefined" : (0, _typeof3.default)(superClass)));
    }

    subClass.prototype = (0, _create2.default)(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
    if (superClass) _setPrototypeOf2.default ? (0, _setPrototypeOf2.default)(subClass, superClass) : subClass.__proto__ = superClass;
  };
});
$__System.registerDynamic("116", ["1f", "20", "21", "ec", "117", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _possibleConstructorReturn2 = $__require("20");

  var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

  var _inherits2 = $__require("21");

  var _inherits3 = _interopRequireDefault(_inherits2);

  var _babelHelperFunctionName = $__require("ec");

  var _babelHelperFunctionName2 = _interopRequireDefault(_babelHelperFunctionName);

  var _vanilla = $__require("117");

  var _vanilla2 = _interopRequireDefault(_vanilla);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var LooseClassTransformer = function (_VanillaTransformer) {
    (0, _inherits3.default)(LooseClassTransformer, _VanillaTransformer);

    function LooseClassTransformer() {
      (0, _classCallCheck3.default)(this, LooseClassTransformer);

      var _this = (0, _possibleConstructorReturn3.default)(this, _VanillaTransformer.apply(this, arguments));

      _this.isLoose = true;
      return _this;
    }

    LooseClassTransformer.prototype._processMethod = function _processMethod(node, scope) {
      if (!node.decorators) {

        var classRef = this.classRef;
        if (!node.static) classRef = t.memberExpression(classRef, t.identifier("prototype"));
        var methodName = t.memberExpression(classRef, node.key, node.computed || t.isLiteral(node.key));

        var func = t.functionExpression(null, node.params, node.body, node.generator, node.async);
        func.returnType = node.returnType;
        var key = t.toComputedKey(node, node.key);
        if (t.isStringLiteral(key)) {
          func = (0, _babelHelperFunctionName2.default)({
            node: func,
            id: key,
            scope: scope
          });
        }

        var expr = t.expressionStatement(t.assignmentExpression("=", methodName, func));
        t.inheritsComments(expr, node);
        this.body.push(expr);
        return true;
      }
    };

    return LooseClassTransformer;
  }(_vanilla2.default);

  exports.default = LooseClassTransformer;
  module.exports = exports["default"];
});
$__System.registerDynamic("118", ["15", "ec", "119", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _keys = $__require("15");

  var _keys2 = _interopRequireDefault(_keys);

  exports.push = push;
  exports.hasComputed = hasComputed;
  exports.toComputedObjectFromClass = toComputedObjectFromClass;
  exports.toClassObject = toClassObject;
  exports.toDefineObject = toDefineObject;

  var _babelHelperFunctionName = $__require("ec");

  var _babelHelperFunctionName2 = _interopRequireDefault(_babelHelperFunctionName);

  var _has = $__require("119");

  var _has2 = _interopRequireDefault(_has);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function toKind(node) {
    if (t.isClassMethod(node) || t.isObjectMethod(node)) {
      if (node.kind === "get" || node.kind === "set") {
        return node.kind;
      }
    }

    return "value";
  }

  function push(mutatorMap, node, kind, file, scope) {
    var alias = t.toKeyAlias(node);

    var map = {};
    if ((0, _has2.default)(mutatorMap, alias)) map = mutatorMap[alias];
    mutatorMap[alias] = map;

    map._inherits = map._inherits || [];
    map._inherits.push(node);

    map._key = node.key;

    if (node.computed) {
      map._computed = true;
    }

    if (node.decorators) {
      var decorators = map.decorators = map.decorators || t.arrayExpression([]);
      decorators.elements = decorators.elements.concat(node.decorators.map(function (dec) {
        return dec.expression;
      }).reverse());
    }

    if (map.value || map.initializer) {
      throw file.buildCodeFrameError(node, "Key conflict with sibling node");
    }

    var key = void 0,
        value = void 0;

    if (t.isObjectProperty(node) || t.isObjectMethod(node) || t.isClassMethod(node)) {
      key = t.toComputedKey(node, node.key);
    }

    if (t.isObjectProperty(node) || t.isClassProperty(node)) {
      value = node.value;
    } else if (t.isObjectMethod(node) || t.isClassMethod(node)) {
      value = t.functionExpression(null, node.params, node.body, node.generator, node.async);
      value.returnType = node.returnType;
    }

    var inheritedKind = toKind(node);
    if (!kind || inheritedKind !== "value") {
      kind = inheritedKind;
    }

    if (scope && t.isStringLiteral(key) && (kind === "value" || kind === "initializer") && t.isFunctionExpression(value)) {
      value = (0, _babelHelperFunctionName2.default)({ id: key, node: value, scope: scope });
    }

    if (value) {
      t.inheritsComments(value, node);
      map[kind] = value;
    }

    return map;
  }

  function hasComputed(mutatorMap) {
    for (var key in mutatorMap) {
      if (mutatorMap[key]._computed) {
        return true;
      }
    }
    return false;
  }

  function toComputedObjectFromClass(obj) {
    var objExpr = t.arrayExpression([]);

    for (var i = 0; i < obj.properties.length; i++) {
      var prop = obj.properties[i];
      var val = prop.value;
      val.properties.unshift(t.objectProperty(t.identifier("key"), t.toComputedKey(prop)));
      objExpr.elements.push(val);
    }

    return objExpr;
  }

  function toClassObject(mutatorMap) {
    var objExpr = t.objectExpression([]);

    (0, _keys2.default)(mutatorMap).forEach(function (mutatorMapKey) {
      var map = mutatorMap[mutatorMapKey];
      var mapNode = t.objectExpression([]);

      var propNode = t.objectProperty(map._key, mapNode, map._computed);

      (0, _keys2.default)(map).forEach(function (key) {
        var node = map[key];
        if (key[0] === "_") return;

        var inheritNode = node;
        if (t.isClassMethod(node) || t.isClassProperty(node)) node = node.value;

        var prop = t.objectProperty(t.identifier(key), node);
        t.inheritsComments(prop, inheritNode);
        t.removeComments(inheritNode);

        mapNode.properties.push(prop);
      });

      objExpr.properties.push(propNode);
    });

    return objExpr;
  }

  function toDefineObject(mutatorMap) {
    (0, _keys2.default)(mutatorMap).forEach(function (key) {
      var map = mutatorMap[key];
      if (map.value) map.writable = t.booleanLiteral(true);
      map.configurable = t.booleanLiteral(true);
      map.enumerable = t.booleanLiteral(true);
    });

    return toClassObject(mutatorMap);
  }
});
$__System.registerDynamic("117", ["17", "1f", "d5", "11a", "11b", "118", "10", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _babelTraverse = $__require("d5");

  var _babelHelperReplaceSupers = $__require("11a");

  var _babelHelperReplaceSupers2 = _interopRequireDefault(_babelHelperReplaceSupers);

  var _babelHelperOptimiseCallExpression = $__require("11b");

  var _babelHelperOptimiseCallExpression2 = _interopRequireDefault(_babelHelperOptimiseCallExpression);

  var _babelHelperDefineMap = $__require("118");

  var defineMap = _interopRequireWildcard(_babelHelperDefineMap);

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var buildDerivedConstructor = (0, _babelTemplate2.default)("\n  (function () {\n    super(...arguments);\n  })\n");

  var noMethodVisitor = {
    "FunctionExpression|FunctionDeclaration": function FunctionExpressionFunctionDeclaration(path) {
      if (!path.is("shadow")) {
        path.skip();
      }
    },
    Method: function Method(path) {
      path.skip();
    }
  };

  var verifyConstructorVisitor = _babelTraverse.visitors.merge([noMethodVisitor, {
    Super: function Super(path) {
      if (this.isDerived && !this.hasBareSuper && !path.parentPath.isCallExpression({ callee: path.node })) {
        throw path.buildCodeFrameError("'super.*' is not allowed before super()");
      }
    },

    CallExpression: {
      exit: function exit(path) {
        if (path.get("callee").isSuper()) {
          this.hasBareSuper = true;

          if (!this.isDerived) {
            throw path.buildCodeFrameError("super() is only allowed in a derived constructor");
          }
        }
      }
    },

    ThisExpression: function ThisExpression(path) {
      if (this.isDerived && !this.hasBareSuper) {
        if (!path.inShadow("this")) {
          throw path.buildCodeFrameError("'this' is not allowed before super()");
        }
      }
    }
  }]);

  var findThisesVisitor = _babelTraverse.visitors.merge([noMethodVisitor, {
    ThisExpression: function ThisExpression(path) {
      this.superThises.push(path);
    }
  }]);

  var ClassTransformer = function () {
    function ClassTransformer(path, file) {
      (0, _classCallCheck3.default)(this, ClassTransformer);

      this.parent = path.parent;
      this.scope = path.scope;
      this.node = path.node;
      this.path = path;
      this.file = file;

      this.clearDescriptors();

      this.instancePropBody = [];
      this.instancePropRefs = {};
      this.staticPropBody = [];
      this.body = [];

      this.bareSuperAfter = [];
      this.bareSupers = [];

      this.pushedConstructor = false;
      this.pushedInherits = false;
      this.isLoose = false;

      this.superThises = [];

      this.classId = this.node.id;

      this.classRef = this.node.id ? t.identifier(this.node.id.name) : this.scope.generateUidIdentifier("class");

      this.superName = this.node.superClass || t.identifier("Function");
      this.isDerived = !!this.node.superClass;
    }

    ClassTransformer.prototype.run = function run() {
      var _this = this;

      var superName = this.superName;
      var file = this.file;
      var body = this.body;

      var constructorBody = this.constructorBody = t.blockStatement([]);
      this.constructor = this.buildConstructor();

      var closureParams = [];
      var closureArgs = [];

      if (this.isDerived) {
        closureArgs.push(superName);

        superName = this.scope.generateUidIdentifierBasedOnNode(superName);
        closureParams.push(superName);

        this.superName = superName;
      }

      this.buildBody();

      constructorBody.body.unshift(t.expressionStatement(t.callExpression(file.addHelper("classCallCheck"), [t.thisExpression(), this.classRef])));

      body = body.concat(this.staticPropBody.map(function (fn) {
        return fn(_this.classRef);
      }));

      if (this.classId) {
        if (body.length === 1) return t.toExpression(body[0]);
      }

      body.push(t.returnStatement(this.classRef));

      var container = t.functionExpression(null, closureParams, t.blockStatement(body));
      container.shadow = true;
      return t.callExpression(container, closureArgs);
    };

    ClassTransformer.prototype.buildConstructor = function buildConstructor() {
      var func = t.functionDeclaration(this.classRef, [], this.constructorBody);
      t.inherits(func, this.node);
      return func;
    };

    ClassTransformer.prototype.pushToMap = function pushToMap(node, enumerable) {
      var kind = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : "value";
      var scope = arguments[3];

      var mutatorMap = void 0;
      if (node.static) {
        this.hasStaticDescriptors = true;
        mutatorMap = this.staticMutatorMap;
      } else {
        this.hasInstanceDescriptors = true;
        mutatorMap = this.instanceMutatorMap;
      }

      var map = defineMap.push(mutatorMap, node, kind, this.file, scope);

      if (enumerable) {
        map.enumerable = t.booleanLiteral(true);
      }

      return map;
    };

    ClassTransformer.prototype.constructorMeMaybe = function constructorMeMaybe() {
      var hasConstructor = false;
      var paths = this.path.get("body.body");
      for (var _iterator = paths, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var path = _ref;

        hasConstructor = path.equals("kind", "constructor");
        if (hasConstructor) break;
      }
      if (hasConstructor) return;

      var params = void 0,
          body = void 0;

      if (this.isDerived) {
        var _constructor = buildDerivedConstructor().expression;
        params = _constructor.params;
        body = _constructor.body;
      } else {
        params = [];
        body = t.blockStatement([]);
      }

      this.path.get("body").unshiftContainer("body", t.classMethod("constructor", t.identifier("constructor"), params, body));
    };

    ClassTransformer.prototype.buildBody = function buildBody() {
      this.constructorMeMaybe();
      this.pushBody();
      this.verifyConstructor();

      if (this.userConstructor) {
        var constructorBody = this.constructorBody;
        constructorBody.body = constructorBody.body.concat(this.userConstructor.body.body);
        t.inherits(this.constructor, this.userConstructor);
        t.inherits(constructorBody, this.userConstructor.body);
      }

      this.pushDescriptors();
    };

    ClassTransformer.prototype.pushBody = function pushBody() {
      var classBodyPaths = this.path.get("body.body");

      for (var _iterator2 = classBodyPaths, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var path = _ref2;

        var node = path.node;

        if (path.isClassProperty()) {
          throw path.buildCodeFrameError("Missing class properties transform.");
        }

        if (node.decorators) {
          throw path.buildCodeFrameError("Method has decorators, put the decorator plugin before the classes one.");
        }

        if (t.isClassMethod(node)) {
          var isConstructor = node.kind === "constructor";

          if (isConstructor) {
            path.traverse(verifyConstructorVisitor, this);

            if (!this.hasBareSuper && this.isDerived) {
              throw path.buildCodeFrameError("missing super() call in constructor");
            }
          }

          var replaceSupers = new _babelHelperReplaceSupers2.default({
            forceSuperMemoisation: isConstructor,
            methodPath: path,
            methodNode: node,
            objectRef: this.classRef,
            superRef: this.superName,
            isStatic: node.static,
            isLoose: this.isLoose,
            scope: this.scope,
            file: this.file
          }, true);

          replaceSupers.replace();

          if (isConstructor) {
            this.pushConstructor(replaceSupers, node, path);
          } else {
            this.pushMethod(node, path);
          }
        }
      }
    };

    ClassTransformer.prototype.clearDescriptors = function clearDescriptors() {
      this.hasInstanceDescriptors = false;
      this.hasStaticDescriptors = false;

      this.instanceMutatorMap = {};
      this.staticMutatorMap = {};
    };

    ClassTransformer.prototype.pushDescriptors = function pushDescriptors() {
      this.pushInherits();

      var body = this.body;

      var instanceProps = void 0;
      var staticProps = void 0;

      if (this.hasInstanceDescriptors) {
        instanceProps = defineMap.toClassObject(this.instanceMutatorMap);
      }

      if (this.hasStaticDescriptors) {
        staticProps = defineMap.toClassObject(this.staticMutatorMap);
      }

      if (instanceProps || staticProps) {
        if (instanceProps) instanceProps = defineMap.toComputedObjectFromClass(instanceProps);
        if (staticProps) staticProps = defineMap.toComputedObjectFromClass(staticProps);

        var nullNode = t.nullLiteral();

        var args = [this.classRef, nullNode, nullNode, nullNode, nullNode];

        if (instanceProps) args[1] = instanceProps;
        if (staticProps) args[2] = staticProps;

        if (this.instanceInitializersId) {
          args[3] = this.instanceInitializersId;
          body.unshift(this.buildObjectAssignment(this.instanceInitializersId));
        }

        if (this.staticInitializersId) {
          args[4] = this.staticInitializersId;
          body.unshift(this.buildObjectAssignment(this.staticInitializersId));
        }

        var lastNonNullIndex = 0;
        for (var i = 0; i < args.length; i++) {
          if (args[i] !== nullNode) lastNonNullIndex = i;
        }
        args = args.slice(0, lastNonNullIndex + 1);

        body.push(t.expressionStatement(t.callExpression(this.file.addHelper("createClass"), args)));
      }

      this.clearDescriptors();
    };

    ClassTransformer.prototype.buildObjectAssignment = function buildObjectAssignment(id) {
      return t.variableDeclaration("var", [t.variableDeclarator(id, t.objectExpression([]))]);
    };

    ClassTransformer.prototype.wrapSuperCall = function wrapSuperCall(bareSuper, superRef, thisRef, body) {
      var bareSuperNode = bareSuper.node;

      if (this.isLoose) {
        bareSuperNode.arguments.unshift(t.thisExpression());
        if (bareSuperNode.arguments.length === 2 && t.isSpreadElement(bareSuperNode.arguments[1]) && t.isIdentifier(bareSuperNode.arguments[1].argument, { name: "arguments" })) {
          bareSuperNode.arguments[1] = bareSuperNode.arguments[1].argument;
          bareSuperNode.callee = t.memberExpression(superRef, t.identifier("apply"));
        } else {
          bareSuperNode.callee = t.memberExpression(superRef, t.identifier("call"));
        }
      } else {
        bareSuperNode = (0, _babelHelperOptimiseCallExpression2.default)(t.logicalExpression("||", t.memberExpression(this.classRef, t.identifier("__proto__")), t.callExpression(t.memberExpression(t.identifier("Object"), t.identifier("getPrototypeOf")), [this.classRef])), t.thisExpression(), bareSuperNode.arguments);
      }

      var call = t.callExpression(this.file.addHelper("possibleConstructorReturn"), [t.thisExpression(), bareSuperNode]);

      var bareSuperAfter = this.bareSuperAfter.map(function (fn) {
        return fn(thisRef);
      });

      if (bareSuper.parentPath.isExpressionStatement() && bareSuper.parentPath.container === body.node.body && body.node.body.length - 1 === bareSuper.parentPath.key) {

        if (this.superThises.length || bareSuperAfter.length) {
          bareSuper.scope.push({ id: thisRef });
          call = t.assignmentExpression("=", thisRef, call);
        }

        if (bareSuperAfter.length) {
          call = t.toSequenceExpression([call].concat(bareSuperAfter, [thisRef]));
        }

        bareSuper.parentPath.replaceWith(t.returnStatement(call));
      } else {
        bareSuper.replaceWithMultiple([t.variableDeclaration("var", [t.variableDeclarator(thisRef, call)])].concat(bareSuperAfter, [t.expressionStatement(thisRef)]));
      }
    };

    ClassTransformer.prototype.verifyConstructor = function verifyConstructor() {
      var _this2 = this;

      if (!this.isDerived) return;

      var path = this.userConstructorPath;
      var body = path.get("body");

      path.traverse(findThisesVisitor, this);

      var guaranteedSuperBeforeFinish = !!this.bareSupers.length;

      var superRef = this.superName || t.identifier("Function");
      var thisRef = path.scope.generateUidIdentifier("this");

      for (var _iterator3 = this.bareSupers, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
        var _ref3;

        if (_isArray3) {
          if (_i3 >= _iterator3.length) break;
          _ref3 = _iterator3[_i3++];
        } else {
          _i3 = _iterator3.next();
          if (_i3.done) break;
          _ref3 = _i3.value;
        }

        var bareSuper = _ref3;

        this.wrapSuperCall(bareSuper, superRef, thisRef, body);

        if (guaranteedSuperBeforeFinish) {
          bareSuper.find(function (parentPath) {
            if (parentPath === path) {
              return true;
            }

            if (parentPath.isLoop() || parentPath.isConditional()) {
              guaranteedSuperBeforeFinish = false;
              return true;
            }
          });
        }
      }

      for (var _iterator4 = this.superThises, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
        var _ref4;

        if (_isArray4) {
          if (_i4 >= _iterator4.length) break;
          _ref4 = _iterator4[_i4++];
        } else {
          _i4 = _iterator4.next();
          if (_i4.done) break;
          _ref4 = _i4.value;
        }

        var thisPath = _ref4;

        thisPath.replaceWith(thisRef);
      }

      var wrapReturn = function wrapReturn(returnArg) {
        return t.callExpression(_this2.file.addHelper("possibleConstructorReturn"), [thisRef].concat(returnArg || []));
      };

      var bodyPaths = body.get("body");
      if (bodyPaths.length && !bodyPaths.pop().isReturnStatement()) {
        body.pushContainer("body", t.returnStatement(guaranteedSuperBeforeFinish ? thisRef : wrapReturn()));
      }

      for (var _iterator5 = this.superReturns, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
        var _ref5;

        if (_isArray5) {
          if (_i5 >= _iterator5.length) break;
          _ref5 = _iterator5[_i5++];
        } else {
          _i5 = _iterator5.next();
          if (_i5.done) break;
          _ref5 = _i5.value;
        }

        var returnPath = _ref5;

        if (returnPath.node.argument) {
          var ref = returnPath.scope.generateDeclaredUidIdentifier("ret");
          returnPath.get("argument").replaceWithMultiple([t.assignmentExpression("=", ref, returnPath.node.argument), wrapReturn(ref)]);
        } else {
          returnPath.get("argument").replaceWith(wrapReturn());
        }
      }
    };

    ClassTransformer.prototype.pushMethod = function pushMethod(node, path) {
      var scope = path ? path.scope : this.scope;

      if (node.kind === "method") {
        if (this._processMethod(node, scope)) return;
      }

      this.pushToMap(node, false, null, scope);
    };

    ClassTransformer.prototype._processMethod = function _processMethod() {
      return false;
    };

    ClassTransformer.prototype.pushConstructor = function pushConstructor(replaceSupers, method, path) {
      this.bareSupers = replaceSupers.bareSupers;
      this.superReturns = replaceSupers.returns;

      if (path.scope.hasOwnBinding(this.classRef.name)) {
        path.scope.rename(this.classRef.name);
      }

      var construct = this.constructor;

      this.userConstructorPath = path;
      this.userConstructor = method;
      this.hasConstructor = true;

      t.inheritsComments(construct, method);

      construct._ignoreUserWhitespace = true;
      construct.params = method.params;

      t.inherits(construct.body, method.body);
      construct.body.directives = method.body.directives;

      this._pushConstructor();
    };

    ClassTransformer.prototype._pushConstructor = function _pushConstructor() {
      if (this.pushedConstructor) return;
      this.pushedConstructor = true;

      if (this.hasInstanceDescriptors || this.hasStaticDescriptors) {
        this.pushDescriptors();
      }

      this.body.push(this.constructor);

      this.pushInherits();
    };

    ClassTransformer.prototype.pushInherits = function pushInherits() {
      if (!this.isDerived || this.pushedInherits) return;

      this.pushedInherits = true;
      this.body.unshift(t.expressionStatement(t.callExpression(this.file.addHelper("inherits"), [this.classRef, this.superName])));
    };

    return ClassTransformer;
  }();

  exports.default = ClassTransformer;
  module.exports = exports["default"];
});
$__System.registerDynamic("ec", ["11c", "10", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (_ref) {
    var node = _ref.node,
        parent = _ref.parent,
        scope = _ref.scope,
        id = _ref.id;

    if (node.id) return;

    if ((t.isObjectProperty(parent) || t.isObjectMethod(parent, { kind: "method" })) && (!parent.computed || t.isLiteral(parent.key))) {
      id = parent.key;
    } else if (t.isVariableDeclarator(parent)) {
      id = parent.id;

      if (t.isIdentifier(id)) {
        var binding = scope.parent.getBinding(id.name);
        if (binding && binding.constant && scope.getBinding(id.name) === binding) {
          node.id = id;
          node.id[t.NOT_LOCAL_BINDING] = true;
          return;
        }
      }
    } else if (t.isAssignmentExpression(parent)) {
      id = parent.left;
    } else if (!id) {
      return;
    }

    var name = void 0;
    if (id && t.isLiteral(id)) {
      name = id.value;
    } else if (id && t.isIdentifier(id)) {
      name = id.name;
    } else {
      return;
    }

    name = t.toBindingIdentifierName(name);
    id = t.identifier(name);

    id[t.NOT_LOCAL_BINDING] = true;

    var state = visit(node, name, scope);
    return wrap(state, node, id, scope) || node;
  };

  var _babelHelperGetFunctionArity = $__require("11c");

  var _babelHelperGetFunctionArity2 = _interopRequireDefault(_babelHelperGetFunctionArity);

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var buildPropertyMethodAssignmentWrapper = (0, _babelTemplate2.default)("\n  (function (FUNCTION_KEY) {\n    function FUNCTION_ID() {\n      return FUNCTION_KEY.apply(this, arguments);\n    }\n\n    FUNCTION_ID.toString = function () {\n      return FUNCTION_KEY.toString();\n    }\n\n    return FUNCTION_ID;\n  })(FUNCTION)\n");

  var buildGeneratorPropertyMethodAssignmentWrapper = (0, _babelTemplate2.default)("\n  (function (FUNCTION_KEY) {\n    function* FUNCTION_ID() {\n      return yield* FUNCTION_KEY.apply(this, arguments);\n    }\n\n    FUNCTION_ID.toString = function () {\n      return FUNCTION_KEY.toString();\n    };\n\n    return FUNCTION_ID;\n  })(FUNCTION)\n");

  var visitor = {
    "ReferencedIdentifier|BindingIdentifier": function ReferencedIdentifierBindingIdentifier(path, state) {
      if (path.node.name !== state.name) return;

      var localDeclar = path.scope.getBindingIdentifier(state.name);
      if (localDeclar !== state.outerDeclar) return;

      state.selfReference = true;
      path.stop();
    }
  };

  function wrap(state, method, id, scope) {
    if (state.selfReference) {
      if (scope.hasBinding(id.name) && !scope.hasGlobal(id.name)) {
        scope.rename(id.name);
      } else {
        if (!t.isFunction(method)) return;

        var build = buildPropertyMethodAssignmentWrapper;
        if (method.generator) build = buildGeneratorPropertyMethodAssignmentWrapper;
        var _template = build({
          FUNCTION: method,
          FUNCTION_ID: id,
          FUNCTION_KEY: scope.generateUidIdentifier(id.name)
        }).expression;
        _template.callee._skipModulesRemap = true;

        var params = _template.callee.body.body[0].params;
        for (var i = 0, len = (0, _babelHelperGetFunctionArity2.default)(method); i < len; i++) {
          params.push(scope.generateUidIdentifier("x"));
        }

        return _template;
      }
    }

    method.id = id;
    scope.getProgramParent().references[id.name] = true;
  }

  function visit(node, name, scope) {
    var state = {
      selfAssignment: false,
      selfReference: false,
      outerDeclar: scope.getBindingIdentifier(name),
      references: [],
      name: name
    };

    var binding = scope.getOwnBinding(name);

    if (binding) {
      if (binding.kind === "param") {
        state.selfReference = true;
      } else {}
    } else if (state.outerDeclar || scope.hasGlobal(name)) {
      scope.traverse(node, visitor, state);
    }

    return state;
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("11d", ["d8", "116", "117", "ec"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _symbol = $__require("d8");

  var _symbol2 = _interopRequireDefault(_symbol);

  exports.default = function (_ref) {
    var t = _ref.types;

    var VISITED = (0, _symbol2.default)();

    return {
      visitor: {
        ExportDefaultDeclaration: function ExportDefaultDeclaration(path) {
          if (!path.get("declaration").isClassDeclaration()) return;

          var node = path.node;

          var ref = node.declaration.id || path.scope.generateUidIdentifier("class");
          node.declaration.id = ref;

          path.replaceWith(node.declaration);
          path.insertAfter(t.exportDefaultDeclaration(ref));
        },
        ClassDeclaration: function ClassDeclaration(path) {
          var node = path.node;

          var ref = node.id || path.scope.generateUidIdentifier("class");

          path.replaceWith(t.variableDeclaration("let", [t.variableDeclarator(ref, t.toExpression(node))]));
        },
        ClassExpression: function ClassExpression(path, state) {
          var node = path.node;

          if (node[VISITED]) return;

          var inferred = (0, _babelHelperFunctionName2.default)(path);
          if (inferred && inferred !== node) return path.replaceWith(inferred);

          node[VISITED] = true;

          var Constructor = _vanilla2.default;
          if (state.opts.loose) Constructor = _loose2.default;

          path.replaceWith(new Constructor(path, state.file).run());
        }
      }
    };
  };

  var _loose = $__require("116");

  var _loose2 = _interopRequireDefault(_loose);

  var _vanilla = $__require("117");

  var _vanilla2 = _interopRequireDefault(_vanilla);

  var _babelHelperFunctionName = $__require("ec");

  var _babelHelperFunctionName2 = _interopRequireDefault(_babelHelperFunctionName);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("11b", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (callee, thisNode, args) {
    if (args.length === 1 && t.isSpreadElement(args[0]) && t.isIdentifier(args[0].argument, { name: "arguments" })) {
      return t.callExpression(t.memberExpression(callee, t.identifier("apply")), [thisNode, args[0].argument]);
    } else {
      return t.callExpression(t.memberExpression(callee, t.identifier("call")), [thisNode].concat(args));
    }
  };

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("11a", ["1f", "d8", "11b", "f", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _symbol = $__require("d8");

  var _symbol2 = _interopRequireDefault(_symbol);

  var _babelHelperOptimiseCallExpression = $__require("11b");

  var _babelHelperOptimiseCallExpression2 = _interopRequireDefault(_babelHelperOptimiseCallExpression);

  var _babelMessages = $__require("f");

  var messages = _interopRequireWildcard(_babelMessages);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var HARDCORE_THIS_REF = (0, _symbol2.default)();

  function isIllegalBareSuper(node, parent) {
    if (!t.isSuper(node)) return false;
    if (t.isMemberExpression(parent, { computed: false })) return false;
    if (t.isCallExpression(parent, { callee: node })) return false;
    return true;
  }

  function isMemberExpressionSuper(node) {
    return t.isMemberExpression(node) && t.isSuper(node.object);
  }

  function getPrototypeOfExpression(objectRef, isStatic) {
    var targetRef = isStatic ? objectRef : t.memberExpression(objectRef, t.identifier("prototype"));

    return t.logicalExpression("||", t.memberExpression(targetRef, t.identifier("__proto__")), t.callExpression(t.memberExpression(t.identifier("Object"), t.identifier("getPrototypeOf")), [targetRef]));
  }

  var visitor = {
    Function: function Function(path) {
      if (!path.inShadow("this")) {
        path.skip();
      }
    },
    ReturnStatement: function ReturnStatement(path, state) {
      if (!path.inShadow("this")) {
        state.returns.push(path);
      }
    },
    ThisExpression: function ThisExpression(path, state) {
      if (!path.node[HARDCORE_THIS_REF]) {
        state.thises.push(path);
      }
    },
    enter: function enter(path, state) {
      var callback = state.specHandle;
      if (state.isLoose) callback = state.looseHandle;

      var isBareSuper = path.isCallExpression() && path.get("callee").isSuper();

      var result = callback.call(state, path);

      if (result) {
        state.hasSuper = true;
      }

      if (isBareSuper) {
        state.bareSupers.push(path);
      }

      if (result === true) {
        path.requeue();
      }

      if (result !== true && result) {
        if (Array.isArray(result)) {
          path.replaceWithMultiple(result);
        } else {
          path.replaceWith(result);
        }
      }
    }
  };

  var ReplaceSupers = function () {
    function ReplaceSupers(opts) {
      var inClass = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      (0, _classCallCheck3.default)(this, ReplaceSupers);

      this.forceSuperMemoisation = opts.forceSuperMemoisation;
      this.methodPath = opts.methodPath;
      this.methodNode = opts.methodNode;
      this.superRef = opts.superRef;
      this.isStatic = opts.isStatic;
      this.hasSuper = false;
      this.inClass = inClass;
      this.isLoose = opts.isLoose;
      this.scope = this.methodPath.scope;
      this.file = opts.file;
      this.opts = opts;

      this.bareSupers = [];
      this.returns = [];
      this.thises = [];
    }

    ReplaceSupers.prototype.getObjectRef = function getObjectRef() {
      return this.opts.objectRef || this.opts.getObjectRef();
    };

    ReplaceSupers.prototype.setSuperProperty = function setSuperProperty(property, value, isComputed) {
      return t.callExpression(this.file.addHelper("set"), [getPrototypeOfExpression(this.getObjectRef(), this.isStatic), isComputed ? property : t.stringLiteral(property.name), value, t.thisExpression()]);
    };

    ReplaceSupers.prototype.getSuperProperty = function getSuperProperty(property, isComputed) {
      return t.callExpression(this.file.addHelper("get"), [getPrototypeOfExpression(this.getObjectRef(), this.isStatic), isComputed ? property : t.stringLiteral(property.name), t.thisExpression()]);
    };

    ReplaceSupers.prototype.replace = function replace() {
      this.methodPath.traverse(visitor, this);
    };

    ReplaceSupers.prototype.getLooseSuperProperty = function getLooseSuperProperty(id, parent) {
      var methodNode = this.methodNode;
      var superRef = this.superRef || t.identifier("Function");

      if (parent.property === id) {
        return;
      } else if (t.isCallExpression(parent, { callee: id })) {
        return;
      } else if (t.isMemberExpression(parent) && !methodNode.static) {
        return t.memberExpression(superRef, t.identifier("prototype"));
      } else {
        return superRef;
      }
    };

    ReplaceSupers.prototype.looseHandle = function looseHandle(path) {
      var node = path.node;
      if (path.isSuper()) {
        return this.getLooseSuperProperty(node, path.parent);
      } else if (path.isCallExpression()) {
        var callee = node.callee;
        if (!t.isMemberExpression(callee)) return;
        if (!t.isSuper(callee.object)) return;

        t.appendToMemberExpression(callee, t.identifier("call"));
        node.arguments.unshift(t.thisExpression());
        return true;
      }
    };

    ReplaceSupers.prototype.specHandleAssignmentExpression = function specHandleAssignmentExpression(ref, path, node) {
      if (node.operator === "=") {
        return this.setSuperProperty(node.left.property, node.right, node.left.computed);
      } else {
        ref = ref || path.scope.generateUidIdentifier("ref");
        return [t.variableDeclaration("var", [t.variableDeclarator(ref, node.left)]), t.expressionStatement(t.assignmentExpression("=", node.left, t.binaryExpression(node.operator[0], ref, node.right)))];
      }
    };

    ReplaceSupers.prototype.specHandle = function specHandle(path) {
      var property = void 0;
      var computed = void 0;
      var args = void 0;

      var parent = path.parent;
      var node = path.node;

      if (isIllegalBareSuper(node, parent)) {
        throw path.buildCodeFrameError(messages.get("classesIllegalBareSuper"));
      }

      if (t.isCallExpression(node)) {
        var callee = node.callee;
        if (t.isSuper(callee)) {
          return;
        } else if (isMemberExpressionSuper(callee)) {
          property = callee.property;
          computed = callee.computed;
          args = node.arguments;
        }
      } else if (t.isMemberExpression(node) && t.isSuper(node.object)) {
        property = node.property;
        computed = node.computed;
      } else if (t.isUpdateExpression(node) && isMemberExpressionSuper(node.argument)) {
        var binary = t.binaryExpression(node.operator[0], node.argument, t.numericLiteral(1));
        if (node.prefix) {
          return this.specHandleAssignmentExpression(null, path, binary);
        } else {
          var ref = path.scope.generateUidIdentifier("ref");
          return this.specHandleAssignmentExpression(ref, path, binary).concat(t.expressionStatement(ref));
        }
      } else if (t.isAssignmentExpression(node) && isMemberExpressionSuper(node.left)) {
        return this.specHandleAssignmentExpression(null, path, node);
      }

      if (!property) return;

      var superProperty = this.getSuperProperty(property, computed);

      if (args) {
        return this.optimiseCall(superProperty, args);
      } else {
        return superProperty;
      }
    };

    ReplaceSupers.prototype.optimiseCall = function optimiseCall(callee, args) {
      var thisNode = t.thisExpression();
      thisNode[HARDCORE_THIS_REF] = true;
      return (0, _babelHelperOptimiseCallExpression2.default)(callee, thisNode, args);
    };

    return ReplaceSupers;
  }();

  exports.default = ReplaceSupers;
  module.exports = exports["default"];
});
$__System.registerDynamic("11e", ["17", "d8", "11a"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _symbol = $__require("d8");

  var _symbol2 = _interopRequireDefault(_symbol);

  exports.default = function (_ref) {
    var t = _ref.types;

    function Property(path, node, scope, getObjectRef, file) {
      var replaceSupers = new _babelHelperReplaceSupers2.default({
        getObjectRef: getObjectRef,
        methodNode: node,
        methodPath: path,
        isStatic: true,
        scope: scope,
        file: file
      });

      replaceSupers.replace();
    }

    var CONTAINS_SUPER = (0, _symbol2.default)();

    return {
      visitor: {
        Super: function Super(path) {
          var parentObj = path.findParent(function (path) {
            return path.isObjectExpression();
          });
          if (parentObj) parentObj.node[CONTAINS_SUPER] = true;
        },

        ObjectExpression: {
          exit: function exit(path, file) {
            if (!path.node[CONTAINS_SUPER]) return;

            var objectRef = void 0;
            var getObjectRef = function getObjectRef() {
              return objectRef = objectRef || path.scope.generateUidIdentifier("obj");
            };

            var propPaths = path.get("properties");
            for (var _iterator = propPaths, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
              var _ref2;

              if (_isArray) {
                if (_i >= _iterator.length) break;
                _ref2 = _iterator[_i++];
              } else {
                _i = _iterator.next();
                if (_i.done) break;
                _ref2 = _i.value;
              }

              var propPath = _ref2;

              if (propPath.isObjectProperty()) propPath = propPath.get("value");
              Property(propPath, propPath.node, path.scope, getObjectRef, file);
            }

            if (objectRef) {
              path.scope.push({ id: objectRef });
              path.replaceWith(t.assignmentExpression("=", objectRef, path.node));
            }
          }
        }
      }
    };
  };

  var _babelHelperReplaceSupers = $__require("11a");

  var _babelHelperReplaceSupers2 = _interopRequireDefault(_babelHelperReplaceSupers);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("11f", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      visitor: {
        ObjectMethod: function ObjectMethod(path) {
          var node = path.node;

          if (node.kind === "method") {
            var func = t.functionExpression(null, node.params, node.body, node.generator, node.async);
            func.returnType = node.returnType;

            path.replaceWith(t.objectProperty(node.key, func, node.computed));
          }
        },
        ObjectProperty: function ObjectProperty(_ref) {
          var node = _ref.node;

          if (node.shorthand) {
            node.shorthand = false;
          }
        }
      }
    };
  };

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("120", ["17"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var t = _ref.types,
        template = _ref.template;

    var buildMutatorMapAssign = template("\n    MUTATOR_MAP_REF[KEY] = MUTATOR_MAP_REF[KEY] || {};\n    MUTATOR_MAP_REF[KEY].KIND = VALUE;\n  ");

    function getValue(prop) {
      if (t.isObjectProperty(prop)) {
        return prop.value;
      } else if (t.isObjectMethod(prop)) {
        return t.functionExpression(null, prop.params, prop.body, prop.generator, prop.async);
      }
    }

    function pushAssign(objId, prop, body) {
      if (prop.kind === "get" && prop.kind === "set") {
        pushMutatorDefine(objId, prop, body);
      } else {
        body.push(t.expressionStatement(t.assignmentExpression("=", t.memberExpression(objId, prop.key, prop.computed || t.isLiteral(prop.key)), getValue(prop))));
      }
    }

    function pushMutatorDefine(_ref2, prop) {
      var objId = _ref2.objId,
          body = _ref2.body,
          getMutatorId = _ref2.getMutatorId,
          scope = _ref2.scope;

      var key = !prop.computed && t.isIdentifier(prop.key) ? t.stringLiteral(prop.key.name) : prop.key;

      var maybeMemoise = scope.maybeGenerateMemoised(key);
      if (maybeMemoise) {
        body.push(t.expressionStatement(t.assignmentExpression("=", maybeMemoise, key)));
        key = maybeMemoise;
      }

      body.push.apply(body, buildMutatorMapAssign({
        MUTATOR_MAP_REF: getMutatorId(),
        KEY: key,
        VALUE: getValue(prop),
        KIND: t.identifier(prop.kind)
      }));
    }

    function loose(info) {
      for (var _iterator = info.computedProps, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref3;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref3 = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref3 = _i.value;
        }

        var prop = _ref3;

        if (prop.kind === "get" || prop.kind === "set") {
          pushMutatorDefine(info, prop);
        } else {
          pushAssign(info.objId, prop, info.body);
        }
      }
    }

    function spec(info) {
      var objId = info.objId,
          body = info.body,
          computedProps = info.computedProps,
          state = info.state;

      for (var _iterator2 = computedProps, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref4;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref4 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref4 = _i2.value;
        }

        var prop = _ref4;

        var key = t.toComputedKey(prop);

        if (prop.kind === "get" || prop.kind === "set") {
          pushMutatorDefine(info, prop);
        } else if (t.isStringLiteral(key, { value: "__proto__" })) {
          pushAssign(objId, prop, body);
        } else {
          if (computedProps.length === 1) {
            return t.callExpression(state.addHelper("defineProperty"), [info.initPropExpression, key, getValue(prop)]);
          } else {
            body.push(t.expressionStatement(t.callExpression(state.addHelper("defineProperty"), [objId, key, getValue(prop)])));
          }
        }
      }
    }

    return {
      visitor: {
        ObjectExpression: {
          exit: function exit(path, state) {
            var node = path.node,
                parent = path.parent,
                scope = path.scope;

            var hasComputed = false;
            for (var _iterator3 = node.properties, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
              var _ref5;

              if (_isArray3) {
                if (_i3 >= _iterator3.length) break;
                _ref5 = _iterator3[_i3++];
              } else {
                _i3 = _iterator3.next();
                if (_i3.done) break;
                _ref5 = _i3.value;
              }

              var prop = _ref5;

              hasComputed = prop.computed === true;
              if (hasComputed) break;
            }
            if (!hasComputed) return;

            var initProps = [];
            var computedProps = [];
            var foundComputed = false;

            for (var _iterator4 = node.properties, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
              var _ref6;

              if (_isArray4) {
                if (_i4 >= _iterator4.length) break;
                _ref6 = _iterator4[_i4++];
              } else {
                _i4 = _iterator4.next();
                if (_i4.done) break;
                _ref6 = _i4.value;
              }

              var _prop = _ref6;

              if (_prop.computed) {
                foundComputed = true;
              }

              if (foundComputed) {
                computedProps.push(_prop);
              } else {
                initProps.push(_prop);
              }
            }

            var objId = scope.generateUidIdentifierBasedOnNode(parent);
            var initPropExpression = t.objectExpression(initProps);
            var body = [];

            body.push(t.variableDeclaration("var", [t.variableDeclarator(objId, initPropExpression)]));

            var callback = spec;
            if (state.opts.loose) callback = loose;

            var mutatorRef = void 0;

            var getMutatorId = function getMutatorId() {
              if (!mutatorRef) {
                mutatorRef = scope.generateUidIdentifier("mutatorMap");

                body.push(t.variableDeclaration("var", [t.variableDeclarator(mutatorRef, t.objectExpression([]))]));
              }

              return mutatorRef;
            };

            var single = callback({
              scope: scope,
              objId: objId,
              body: body,
              computedProps: computedProps,
              initPropExpression: initPropExpression,
              getMutatorId: getMutatorId,
              state: state
            });

            if (mutatorRef) {
              body.push(t.expressionStatement(t.callExpression(state.addHelper("defineEnumerableProperties"), [objId, mutatorRef])));
            }

            if (single) {
              path.replaceWith(single);
            } else {
              body.push(t.expressionStatement(objId));
              path.replaceWithMultiple(body);
            }
          }
        }
      }
    };
  };

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("121", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (_ref) {
    var messages = _ref.messages,
        template = _ref.template,
        t = _ref.types;

    var buildForOfArray = template("\n    for (var KEY = 0; KEY < ARR.length; KEY++) BODY;\n  ");

    var buildForOfLoose = template("\n    for (var LOOP_OBJECT = OBJECT,\n             IS_ARRAY = Array.isArray(LOOP_OBJECT),\n             INDEX = 0,\n             LOOP_OBJECT = IS_ARRAY ? LOOP_OBJECT : LOOP_OBJECT[Symbol.iterator]();;) {\n      var ID;\n      if (IS_ARRAY) {\n        if (INDEX >= LOOP_OBJECT.length) break;\n        ID = LOOP_OBJECT[INDEX++];\n      } else {\n        INDEX = LOOP_OBJECT.next();\n        if (INDEX.done) break;\n        ID = INDEX.value;\n      }\n    }\n  ");

    var buildForOf = template("\n    var ITERATOR_COMPLETION = true;\n    var ITERATOR_HAD_ERROR_KEY = false;\n    var ITERATOR_ERROR_KEY = undefined;\n    try {\n      for (var ITERATOR_KEY = OBJECT[Symbol.iterator](), STEP_KEY; !(ITERATOR_COMPLETION = (STEP_KEY = ITERATOR_KEY.next()).done); ITERATOR_COMPLETION = true) {\n      }\n    } catch (err) {\n      ITERATOR_HAD_ERROR_KEY = true;\n      ITERATOR_ERROR_KEY = err;\n    } finally {\n      try {\n        if (!ITERATOR_COMPLETION && ITERATOR_KEY.return) {\n          ITERATOR_KEY.return();\n        }\n      } finally {\n        if (ITERATOR_HAD_ERROR_KEY) {\n          throw ITERATOR_ERROR_KEY;\n        }\n      }\n    }\n  ");

    function _ForOfStatementArray(path) {
      var node = path.node,
          scope = path.scope;

      var nodes = [];
      var right = node.right;

      if (!t.isIdentifier(right) || !scope.hasBinding(right.name)) {
        var uid = scope.generateUidIdentifier("arr");
        nodes.push(t.variableDeclaration("var", [t.variableDeclarator(uid, right)]));
        right = uid;
      }

      var iterationKey = scope.generateUidIdentifier("i");

      var loop = buildForOfArray({
        BODY: node.body,
        KEY: iterationKey,
        ARR: right
      });

      t.inherits(loop, node);
      t.ensureBlock(loop);

      var iterationValue = t.memberExpression(right, iterationKey, true);

      var left = node.left;
      if (t.isVariableDeclaration(left)) {
        left.declarations[0].init = iterationValue;
        loop.body.body.unshift(left);
      } else {
        loop.body.body.unshift(t.expressionStatement(t.assignmentExpression("=", left, iterationValue)));
      }

      if (path.parentPath.isLabeledStatement()) {
        loop = t.labeledStatement(path.parentPath.node.label, loop);
      }

      nodes.push(loop);

      return nodes;
    }

    return {
      visitor: {
        ForOfStatement: function ForOfStatement(path, state) {
          if (path.get("right").isArrayExpression()) {
            if (path.parentPath.isLabeledStatement()) {
              return path.parentPath.replaceWithMultiple(_ForOfStatementArray(path));
            } else {
              return path.replaceWithMultiple(_ForOfStatementArray(path));
            }
          }

          var callback = spec;
          if (state.opts.loose) callback = loose;

          var node = path.node;

          var build = callback(path, state);
          var declar = build.declar;
          var loop = build.loop;
          var block = loop.body;

          path.ensureBlock();

          if (declar) {
            block.body.push(declar);
          }

          block.body = block.body.concat(node.body.body);

          t.inherits(loop, node);
          t.inherits(loop.body, node.body);

          if (build.replaceParent) {
            path.parentPath.replaceWithMultiple(build.node);
            path.remove();
          } else {
            path.replaceWithMultiple(build.node);
          }
        }
      }
    };

    function loose(path, file) {
      var node = path.node,
          scope = path.scope,
          parent = path.parent;
      var left = node.left;

      var declar = void 0,
          id = void 0;

      if (t.isIdentifier(left) || t.isPattern(left) || t.isMemberExpression(left)) {
        id = left;
      } else if (t.isVariableDeclaration(left)) {
        id = scope.generateUidIdentifier("ref");
        declar = t.variableDeclaration(left.kind, [t.variableDeclarator(left.declarations[0].id, id)]);
      } else {
        throw file.buildCodeFrameError(left, messages.get("unknownForHead", left.type));
      }

      var iteratorKey = scope.generateUidIdentifier("iterator");
      var isArrayKey = scope.generateUidIdentifier("isArray");

      var loop = buildForOfLoose({
        LOOP_OBJECT: iteratorKey,
        IS_ARRAY: isArrayKey,
        OBJECT: node.right,
        INDEX: scope.generateUidIdentifier("i"),
        ID: id
      });

      if (!declar) {
        loop.body.body.shift();
      }

      var isLabeledParent = t.isLabeledStatement(parent);
      var labeled = void 0;

      if (isLabeledParent) {
        labeled = t.labeledStatement(parent.label, loop);
      }

      return {
        replaceParent: isLabeledParent,
        declar: declar,
        node: labeled || loop,
        loop: loop
      };
    }

    function spec(path, file) {
      var node = path.node,
          scope = path.scope,
          parent = path.parent;

      var left = node.left;
      var declar = void 0;

      var stepKey = scope.generateUidIdentifier("step");
      var stepValue = t.memberExpression(stepKey, t.identifier("value"));

      if (t.isIdentifier(left) || t.isPattern(left) || t.isMemberExpression(left)) {
        declar = t.expressionStatement(t.assignmentExpression("=", left, stepValue));
      } else if (t.isVariableDeclaration(left)) {
        declar = t.variableDeclaration(left.kind, [t.variableDeclarator(left.declarations[0].id, stepValue)]);
      } else {
        throw file.buildCodeFrameError(left, messages.get("unknownForHead", left.type));
      }

      var iteratorKey = scope.generateUidIdentifier("iterator");

      var template = buildForOf({
        ITERATOR_HAD_ERROR_KEY: scope.generateUidIdentifier("didIteratorError"),
        ITERATOR_COMPLETION: scope.generateUidIdentifier("iteratorNormalCompletion"),
        ITERATOR_ERROR_KEY: scope.generateUidIdentifier("iteratorError"),
        ITERATOR_KEY: iteratorKey,
        STEP_KEY: stepKey,
        OBJECT: node.right,
        BODY: null
      });

      var isLabeledParent = t.isLabeledStatement(parent);

      var tryBody = template[3].block.body;
      var loop = tryBody[0];

      if (isLabeledParent) {
        tryBody[0] = t.labeledStatement(parent.label, loop);
      }

      return {
        replaceParent: isLabeledParent,
        declar: declar,
        loop: loop,
        node: template
      };
    }
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("122", ["123", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      visitor: {
        RegExpLiteral: function RegExpLiteral(path) {
          var node = path.node;

          if (!regex.is(node, "y")) return;

          path.replaceWith(t.newExpression(t.identifier("RegExp"), [t.stringLiteral(node.pattern), t.stringLiteral(node.flags)]));
        }
      }
    };
  };

  var _babelHelperRegex = $__require("123");

  var regex = _interopRequireWildcard(_babelHelperRegex);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  module.exports = exports["default"];
});
/*!
 * RegJSGen
 * Copyright 2014 Benjamin Tan <https://d10.github.io/>
 * Available under MIT license <http://d10.mit-license.org/>
 */
;(function () {
  'use strict';

  /** Used to determine if values are of the language type `Object` */

  var objectTypes = {
    'function': true,
    'object': true
  };

  /** Used as a reference to the global object */
  var root = objectTypes[typeof window] && window || this;

  /** Backup possible global object */
  var oldRoot = root;

  /** Detect free variable `exports` */
  var freeExports = objectTypes[typeof exports] && exports;

  /** Detect free variable `module` */
  var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;

  /** Detect free variable `global` from Node.js or Browserified code and use it as `root` */
  var freeGlobal = freeExports && freeModule && typeof global == 'object' && global;
  if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal || freeGlobal.self === freeGlobal)) {
    root = freeGlobal;
  }

  /*--------------------------------------------------------------------------*/

  /*! Based on https://mths.be/fromcodepoint v0.2.0 by @mathias */

  var stringFromCharCode = String.fromCharCode;
  var floor = Math.floor;
  function fromCodePoint() {
    var MAX_SIZE = 0x4000;
    var codeUnits = [];
    var highSurrogate;
    var lowSurrogate;
    var index = -1;
    var length = arguments.length;
    if (!length) {
      return '';
    }
    var result = '';
    while (++index < length) {
      var codePoint = Number(arguments[index]);
      if (!isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`
      codePoint < 0 || // not a valid Unicode code point
      codePoint > 0x10FFFF || // not a valid Unicode code point
      floor(codePoint) != codePoint // not an integer
      ) {
          throw RangeError('Invalid code point: ' + codePoint);
        }
      if (codePoint <= 0xFFFF) {
        // BMP code point
        codeUnits.push(codePoint);
      } else {
        // Astral code point; split in surrogate halves
        // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
        codePoint -= 0x10000;
        highSurrogate = (codePoint >> 10) + 0xD800;
        lowSurrogate = codePoint % 0x400 + 0xDC00;
        codeUnits.push(highSurrogate, lowSurrogate);
      }
      if (index + 1 == length || codeUnits.length > MAX_SIZE) {
        result += stringFromCharCode.apply(null, codeUnits);
        codeUnits.length = 0;
      }
    }
    return result;
  }

  function assertType(type, expected) {
    if (expected.indexOf('|') == -1) {
      if (type == expected) {
        return;
      }

      throw Error('Invalid node type: ' + type);
    }

    expected = assertType.hasOwnProperty(expected) ? assertType[expected] : assertType[expected] = RegExp('^(?:' + expected + ')$');

    if (expected.test(type)) {
      return;
    }

    throw Error('Invalid node type: ' + type);
  }

  /*--------------------------------------------------------------------------*/

  function generate(node) {
    var type = node.type;

    if (generate.hasOwnProperty(type) && typeof generate[type] == 'function') {
      return generate[type](node);
    }

    throw Error('Invalid node type: ' + type);
  }

  /*--------------------------------------------------------------------------*/

  function generateAlternative(node) {
    assertType(node.type, 'alternative');

    var terms = node.body,
        length = terms ? terms.length : 0;

    if (length == 1) {
      return generateTerm(terms[0]);
    } else {
      var i = -1,
          result = '';

      while (++i < length) {
        result += generateTerm(terms[i]);
      }

      return result;
    }
  }

  function generateAnchor(node) {
    assertType(node.type, 'anchor');

    switch (node.kind) {
      case 'start':
        return '^';
      case 'end':
        return '$';
      case 'boundary':
        return '\\b';
      case 'not-boundary':
        return '\\B';
      default:
        throw Error('Invalid assertion');
    }
  }

  function generateAtom(node) {
    assertType(node.type, 'anchor|characterClass|characterClassEscape|dot|group|reference|value');

    return generate(node);
  }

  function generateCharacterClass(node) {
    assertType(node.type, 'characterClass');

    var classRanges = node.body,
        length = classRanges ? classRanges.length : 0;

    var i = -1,
        result = '[';

    if (node.negative) {
      result += '^';
    }

    while (++i < length) {
      result += generateClassAtom(classRanges[i]);
    }

    result += ']';

    return result;
  }

  function generateCharacterClassEscape(node) {
    assertType(node.type, 'characterClassEscape');

    return '\\' + node.value;
  }

  function generateCharacterClassRange(node) {
    assertType(node.type, 'characterClassRange');

    var min = node.min,
        max = node.max;

    if (min.type == 'characterClassRange' || max.type == 'characterClassRange') {
      throw Error('Invalid character class range');
    }

    return generateClassAtom(min) + '-' + generateClassAtom(max);
  }

  function generateClassAtom(node) {
    assertType(node.type, 'anchor|characterClassEscape|characterClassRange|dot|value');

    return generate(node);
  }

  function generateDisjunction(node) {
    assertType(node.type, 'disjunction');

    var body = node.body,
        length = body ? body.length : 0;

    if (length == 0) {
      throw Error('No body');
    } else if (length == 1) {
      return generate(body[0]);
    } else {
      var i = -1,
          result = '';

      while (++i < length) {
        if (i != 0) {
          result += '|';
        }
        result += generate(body[i]);
      }

      return result;
    }
  }

  function generateDot(node) {
    assertType(node.type, 'dot');

    return '.';
  }

  function generateGroup(node) {
    assertType(node.type, 'group');

    var result = '(';

    switch (node.behavior) {
      case 'normal':
        break;
      case 'ignore':
        result += '?:';
        break;
      case 'lookahead':
        result += '?=';
        break;
      case 'negativeLookahead':
        result += '?!';
        break;
      default:
        throw Error('Invalid behaviour: ' + node.behaviour);
    }

    var body = node.body,
        length = body ? body.length : 0;

    if (length == 1) {
      result += generate(body[0]);
    } else {
      var i = -1;

      while (++i < length) {
        result += generate(body[i]);
      }
    }

    result += ')';

    return result;
  }

  function generateQuantifier(node) {
    assertType(node.type, 'quantifier');

    var quantifier = '',
        min = node.min,
        max = node.max;

    switch (max) {
      case undefined:
      case null:
        switch (min) {
          case 0:
            quantifier = '*';
            break;
          case 1:
            quantifier = '+';
            break;
          default:
            quantifier = '{' + min + ',}';
            break;
        }
        break;
      default:
        if (min == max) {
          quantifier = '{' + min + '}';
        } else if (min == 0 && max == 1) {
          quantifier = '?';
        } else {
          quantifier = '{' + min + ',' + max + '}';
        }
        break;
    }

    if (!node.greedy) {
      quantifier += '?';
    }

    return generateAtom(node.body[0]) + quantifier;
  }

  function generateReference(node) {
    assertType(node.type, 'reference');

    return '\\' + node.matchIndex;
  }

  function generateTerm(node) {
    assertType(node.type, 'anchor|characterClass|characterClassEscape|empty|group|quantifier|reference|value');

    return generate(node);
  }

  function generateValue(node) {
    assertType(node.type, 'value');

    var kind = node.kind,
        codePoint = node.codePoint;

    switch (kind) {
      case 'controlLetter':
        return '\\c' + fromCodePoint(codePoint + 64);
      case 'hexadecimalEscape':
        return '\\x' + ('00' + codePoint.toString(16).toUpperCase()).slice(-2);
      case 'identifier':
        return '\\' + fromCodePoint(codePoint);
      case 'null':
        return '\\' + codePoint;
      case 'octal':
        return '\\' + codePoint.toString(8);
      case 'singleEscape':
        switch (codePoint) {
          case 0x0008:
            return '\\b';
          case 0x009:
            return '\\t';
          case 0x00A:
            return '\\n';
          case 0x00B:
            return '\\v';
          case 0x00C:
            return '\\f';
          case 0x00D:
            return '\\r';
          default:
            throw Error('Invalid codepoint: ' + codePoint);
        }
      case 'symbol':
        return fromCodePoint(codePoint);
      case 'unicodeEscape':
        return '\\u' + ('0000' + codePoint.toString(16).toUpperCase()).slice(-4);
      case 'unicodeCodePointEscape':
        return '\\u{' + codePoint.toString(16).toUpperCase() + '}';
      default:
        throw Error('Unsupported node kind: ' + kind);
    }
  }

  /*--------------------------------------------------------------------------*/

  generate.alternative = generateAlternative;
  generate.anchor = generateAnchor;
  generate.characterClass = generateCharacterClass;
  generate.characterClassEscape = generateCharacterClassEscape;
  generate.characterClassRange = generateCharacterClassRange;
  generate.disjunction = generateDisjunction;
  generate.dot = generateDot;
  generate.group = generateGroup;
  generate.quantifier = generateQuantifier;
  generate.reference = generateReference;
  generate.value = generateValue;

  /*--------------------------------------------------------------------------*/

  // export regjsgen
  // some AMD build optimizers, like r.js, check for condition patterns like the following:
  if ('function' == 'function' && 'object' == 'object' && true) {
    // define as an anonymous module so, through path mapping, it can be aliased
    $__System.registerDynamic('124', [], false, function ($__require, $__exports, $__module) {
      return (function () {
        return {
          'generate': generate
        };
      }).call(this);
    });
  }
  // check for `exports` after `define` in case a build optimizer adds an `exports` object
  else if (freeExports && freeModule) {
      // in Narwhal, Node.js, Rhino -require, or RingoJS
      freeExports.generate = generate;
    }
    // in a browser or Rhino
    else {
        root.regjsgen = {
          'generate': generate
        };
      }
}).call(this);
$__System.registerDynamic('125', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  // regjsparser
  //
  // ==================================================================
  //
  // See ECMA-262 Standard: 15.10.1
  //
  // NOTE: The ECMA-262 standard uses the term "Assertion" for /^/. Here the
  //   term "Anchor" is used.
  //
  // Pattern ::
  //      Disjunction
  //
  // Disjunction ::
  //      Alternative
  //      Alternative | Disjunction
  //
  // Alternative ::
  //      [empty]
  //      Alternative Term
  //
  // Term ::
  //      Anchor
  //      Atom
  //      Atom Quantifier
  //
  // Anchor ::
  //      ^
  //      $
  //      \ b
  //      \ B
  //      ( ? = Disjunction )
  //      ( ? ! Disjunction )
  //
  // Quantifier ::
  //      QuantifierPrefix
  //      QuantifierPrefix ?
  //
  // QuantifierPrefix ::
  //      *
  //      +
  //      ?
  //      { DecimalDigits }
  //      { DecimalDigits , }
  //      { DecimalDigits , DecimalDigits }
  //
  // Atom ::
  //      PatternCharacter
  //      .
  //      \ AtomEscape
  //      CharacterClass
  //      ( Disjunction )
  //      ( ? : Disjunction )
  //
  // PatternCharacter ::
  //      SourceCharacter but not any of: ^ $ \ . * + ? ( ) [ ] { } |
  //
  // AtomEscape ::
  //      DecimalEscape
  //      CharacterEscape
  //      CharacterClassEscape
  //
  // CharacterEscape[U] ::
  //      ControlEscape
  //      c ControlLetter
  //      HexEscapeSequence
  //      RegExpUnicodeEscapeSequence[?U] (ES6)
  //      IdentityEscape[?U]
  //
  // ControlEscape ::
  //      one of f n r t v
  // ControlLetter ::
  //      one of
  //          a b c d e f g h i j k l m n o p q r s t u v w x y z
  //          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
  //
  // IdentityEscape ::
  //      SourceCharacter but not IdentifierPart
  //      <ZWJ>
  //      <ZWNJ>
  //
  // DecimalEscape ::
  //      DecimalIntegerLiteral [lookahead ∉ DecimalDigit]
  //
  // CharacterClassEscape ::
  //      one of d D s S w W
  //
  // CharacterClass ::
  //      [ [lookahead ∉ {^}] ClassRanges ]
  //      [ ^ ClassRanges ]
  //
  // ClassRanges ::
  //      [empty]
  //      NonemptyClassRanges
  //
  // NonemptyClassRanges ::
  //      ClassAtom
  //      ClassAtom NonemptyClassRangesNoDash
  //      ClassAtom - ClassAtom ClassRanges
  //
  // NonemptyClassRangesNoDash ::
  //      ClassAtom
  //      ClassAtomNoDash NonemptyClassRangesNoDash
  //      ClassAtomNoDash - ClassAtom ClassRanges
  //
  // ClassAtom ::
  //      -
  //      ClassAtomNoDash
  //
  // ClassAtomNoDash ::
  //      SourceCharacter but not one of \ or ] or -
  //      \ ClassEscape
  //
  // ClassEscape ::
  //      DecimalEscape
  //      b
  //      CharacterEscape
  //      CharacterClassEscape

  (function () {

    function parse(str, flags) {
      function addRaw(node) {
        node.raw = str.substring(node.range[0], node.range[1]);
        return node;
      }

      function updateRawStart(node, start) {
        node.range[0] = start;
        return addRaw(node);
      }

      function createAnchor(kind, rawLength) {
        return addRaw({
          type: 'anchor',
          kind: kind,
          range: [pos - rawLength, pos]
        });
      }

      function createValue(kind, codePoint, from, to) {
        return addRaw({
          type: 'value',
          kind: kind,
          codePoint: codePoint,
          range: [from, to]
        });
      }

      function createEscaped(kind, codePoint, value, fromOffset) {
        fromOffset = fromOffset || 0;
        return createValue(kind, codePoint, pos - (value.length + fromOffset), pos);
      }

      function createCharacter(matches) {
        var _char = matches[0];
        var first = _char.charCodeAt(0);
        if (hasUnicodeFlag) {
          var second;
          if (_char.length === 1 && first >= 0xD800 && first <= 0xDBFF) {
            second = lookahead().charCodeAt(0);
            if (second >= 0xDC00 && second <= 0xDFFF) {
              // Unicode surrogate pair
              pos++;
              return createValue('symbol', (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000, pos - 2, pos);
            }
          }
        }
        return createValue('symbol', first, pos - 1, pos);
      }

      function createDisjunction(alternatives, from, to) {
        return addRaw({
          type: 'disjunction',
          body: alternatives,
          range: [from, to]
        });
      }

      function createDot() {
        return addRaw({
          type: 'dot',
          range: [pos - 1, pos]
        });
      }

      function createCharacterClassEscape(value) {
        return addRaw({
          type: 'characterClassEscape',
          value: value,
          range: [pos - 2, pos]
        });
      }

      function createReference(matchIndex) {
        return addRaw({
          type: 'reference',
          matchIndex: parseInt(matchIndex, 10),
          range: [pos - 1 - matchIndex.length, pos]
        });
      }

      function createGroup(behavior, disjunction, from, to) {
        return addRaw({
          type: 'group',
          behavior: behavior,
          body: disjunction,
          range: [from, to]
        });
      }

      function createQuantifier(min, max, from, to) {
        if (to == null) {
          from = pos - 1;
          to = pos;
        }

        return addRaw({
          type: 'quantifier',
          min: min,
          max: max,
          greedy: true,
          body: null, // set later on
          range: [from, to]
        });
      }

      function createAlternative(terms, from, to) {
        return addRaw({
          type: 'alternative',
          body: terms,
          range: [from, to]
        });
      }

      function createCharacterClass(classRanges, negative, from, to) {
        return addRaw({
          type: 'characterClass',
          body: classRanges,
          negative: negative,
          range: [from, to]
        });
      }

      function createClassRange(min, max, from, to) {
        // See 15.10.2.15:
        if (min.codePoint > max.codePoint) {
          bail('invalid range in character class', min.raw + '-' + max.raw, from, to);
        }

        return addRaw({
          type: 'characterClassRange',
          min: min,
          max: max,
          range: [from, to]
        });
      }

      function flattenBody(body) {
        if (body.type === 'alternative') {
          return body.body;
        } else {
          return [body];
        }
      }

      function isEmpty(obj) {
        return obj.type === 'empty';
      }

      function incr(amount) {
        amount = amount || 1;
        var res = str.substring(pos, pos + amount);
        pos += amount || 1;
        return res;
      }

      function skip(value) {
        if (!match(value)) {
          bail('character', value);
        }
      }

      function match(value) {
        if (str.indexOf(value, pos) === pos) {
          return incr(value.length);
        }
      }

      function lookahead() {
        return str[pos];
      }

      function current(value) {
        return str.indexOf(value, pos) === pos;
      }

      function next(value) {
        return str[pos + 1] === value;
      }

      function matchReg(regExp) {
        var subStr = str.substring(pos);
        var res = subStr.match(regExp);
        if (res) {
          res.range = [];
          res.range[0] = pos;
          incr(res[0].length);
          res.range[1] = pos;
        }
        return res;
      }

      function parseDisjunction() {
        // Disjunction ::
        //      Alternative
        //      Alternative | Disjunction
        var res = [],
            from = pos;
        res.push(parseAlternative());

        while (match('|')) {
          res.push(parseAlternative());
        }

        if (res.length === 1) {
          return res[0];
        }

        return createDisjunction(res, from, pos);
      }

      function parseAlternative() {
        var res = [],
            from = pos;
        var term;

        // Alternative ::
        //      [empty]
        //      Alternative Term
        while (term = parseTerm()) {
          res.push(term);
        }

        if (res.length === 1) {
          return res[0];
        }

        return createAlternative(res, from, pos);
      }

      function parseTerm() {
        // Term ::
        //      Anchor
        //      Atom
        //      Atom Quantifier

        if (pos >= str.length || current('|') || current(')')) {
          return null; /* Means: The term is empty */
        }

        var anchor = parseAnchor();

        if (anchor) {
          return anchor;
        }

        var atom = parseAtom();
        if (!atom) {
          bail('Expected atom');
        }
        var quantifier = parseQuantifier() || false;
        if (quantifier) {
          quantifier.body = flattenBody(atom);
          // The quantifier contains the atom. Therefore, the beginning of the
          // quantifier range is given by the beginning of the atom.
          updateRawStart(quantifier, atom.range[0]);
          return quantifier;
        }
        return atom;
      }

      function parseGroup(matchA, typeA, matchB, typeB) {
        var type = null,
            from = pos;

        if (match(matchA)) {
          type = typeA;
        } else if (match(matchB)) {
          type = typeB;
        } else {
          return false;
        }

        var body = parseDisjunction();
        if (!body) {
          bail('Expected disjunction');
        }
        skip(')');
        var group = createGroup(type, flattenBody(body), from, pos);

        if (type == 'normal') {
          // Keep track of the number of closed groups. This is required for
          // parseDecimalEscape(). In case the string is parsed a second time the
          // value already holds the total count and no incrementation is required.
          if (firstIteration) {
            closedCaptureCounter++;
          }
        }
        return group;
      }

      function parseAnchor() {
        // Anchor ::
        //      ^
        //      $
        //      \ b
        //      \ B
        //      ( ? = Disjunction )
        //      ( ? ! Disjunction )
        var res,
            from = pos;

        if (match('^')) {
          return createAnchor('start', 1 /* rawLength */);
        } else if (match('$')) {
          return createAnchor('end', 1 /* rawLength */);
        } else if (match('\\b')) {
          return createAnchor('boundary', 2 /* rawLength */);
        } else if (match('\\B')) {
          return createAnchor('not-boundary', 2 /* rawLength */);
        } else {
          return parseGroup('(?=', 'lookahead', '(?!', 'negativeLookahead');
        }
      }

      function parseQuantifier() {
        // Quantifier ::
        //      QuantifierPrefix
        //      QuantifierPrefix ?
        //
        // QuantifierPrefix ::
        //      *
        //      +
        //      ?
        //      { DecimalDigits }
        //      { DecimalDigits , }
        //      { DecimalDigits , DecimalDigits }

        var res,
            from = pos;
        var quantifier;
        var min, max;

        if (match('*')) {
          quantifier = createQuantifier(0);
        } else if (match('+')) {
          quantifier = createQuantifier(1);
        } else if (match('?')) {
          quantifier = createQuantifier(0, 1);
        } else if (res = matchReg(/^\{([0-9]+)\}/)) {
          min = parseInt(res[1], 10);
          quantifier = createQuantifier(min, min, res.range[0], res.range[1]);
        } else if (res = matchReg(/^\{([0-9]+),\}/)) {
          min = parseInt(res[1], 10);
          quantifier = createQuantifier(min, undefined, res.range[0], res.range[1]);
        } else if (res = matchReg(/^\{([0-9]+),([0-9]+)\}/)) {
          min = parseInt(res[1], 10);
          max = parseInt(res[2], 10);
          if (min > max) {
            bail('numbers out of order in {} quantifier', '', from, pos);
          }
          quantifier = createQuantifier(min, max, res.range[0], res.range[1]);
        }

        if (quantifier) {
          if (match('?')) {
            quantifier.greedy = false;
            quantifier.range[1] += 1;
          }
        }

        return quantifier;
      }

      function parseAtom() {
        // Atom ::
        //      PatternCharacter
        //      .
        //      \ AtomEscape
        //      CharacterClass
        //      ( Disjunction )
        //      ( ? : Disjunction )

        var res;

        // jviereck: allow ']', '}' here as well to be compatible with browser's
        //   implementations: ']'.match(/]/);
        // if (res = matchReg(/^[^^$\\.*+?()[\]{}|]/)) {
        if (res = matchReg(/^[^^$\\.*+?(){[|]/)) {
          //      PatternCharacter
          return createCharacter(res);
        } else if (match('.')) {
          //      .
          return createDot();
        } else if (match('\\')) {
          //      \ AtomEscape
          res = parseAtomEscape();
          if (!res) {
            bail('atomEscape');
          }
          return res;
        } else if (res = parseCharacterClass()) {
          return res;
        } else {
          //      ( Disjunction )
          //      ( ? : Disjunction )
          return parseGroup('(?:', 'ignore', '(', 'normal');
        }
      }

      function parseUnicodeSurrogatePairEscape(firstEscape) {
        if (hasUnicodeFlag) {
          var first, second;
          if (firstEscape.kind == 'unicodeEscape' && (first = firstEscape.codePoint) >= 0xD800 && first <= 0xDBFF && current('\\') && next('u')) {
            var prevPos = pos;
            pos++;
            var secondEscape = parseClassEscape();
            if (secondEscape.kind == 'unicodeEscape' && (second = secondEscape.codePoint) >= 0xDC00 && second <= 0xDFFF) {
              // Unicode surrogate pair
              firstEscape.range[1] = secondEscape.range[1];
              firstEscape.codePoint = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
              firstEscape.type = 'value';
              firstEscape.kind = 'unicodeCodePointEscape';
              addRaw(firstEscape);
            } else {
              pos = prevPos;
            }
          }
        }
        return firstEscape;
      }

      function parseClassEscape() {
        return parseAtomEscape(true);
      }

      function parseAtomEscape(insideCharacterClass) {
        // AtomEscape ::
        //      DecimalEscape
        //      CharacterEscape
        //      CharacterClassEscape

        var res,
            from = pos;

        res = parseDecimalEscape();
        if (res) {
          return res;
        }

        // For ClassEscape
        if (insideCharacterClass) {
          if (match('b')) {
            // 15.10.2.19
            // The production ClassEscape :: b evaluates by returning the
            // CharSet containing the one character <BS> (Unicode value 0008).
            return createEscaped('singleEscape', 0x0008, '\\b');
          } else if (match('B')) {
            bail('\\B not possible inside of CharacterClass', '', from);
          }
        }

        res = parseCharacterEscape();

        return res;
      }

      function parseDecimalEscape() {
        // DecimalEscape ::
        //      DecimalIntegerLiteral [lookahead ∉ DecimalDigit]
        //      CharacterClassEscape :: one of d D s S w W

        var res, match;

        if (res = matchReg(/^(?!0)\d+/)) {
          match = res[0];
          var refIdx = parseInt(res[0], 10);
          if (refIdx <= closedCaptureCounter) {
            // If the number is smaller than the normal-groups found so
            // far, then it is a reference...
            return createReference(res[0]);
          } else {
            // ... otherwise it needs to be interpreted as a octal (if the
            // number is in an octal format). If it is NOT octal format,
            // then the slash is ignored and the number is matched later
            // as normal characters.

            // Recall the negative decision to decide if the input must be parsed
            // a second time with the total normal-groups.
            backrefDenied.push(refIdx);

            // Reset the position again, as maybe only parts of the previous
            // matched numbers are actual octal numbers. E.g. in '019' only
            // the '01' should be matched.
            incr(-res[0].length);
            if (res = matchReg(/^[0-7]{1,3}/)) {
              return createEscaped('octal', parseInt(res[0], 8), res[0], 1);
            } else {
              // If we end up here, we have a case like /\91/. Then the
              // first slash is to be ignored and the 9 & 1 to be treated
              // like ordinary characters. Create a character for the
              // first number only here - other number-characters
              // (if available) will be matched later.
              res = createCharacter(matchReg(/^[89]/));
              return updateRawStart(res, res.range[0] - 1);
            }
          }
        }
        // Only allow octal numbers in the following. All matched numbers start
        // with a zero (if the do not, the previous if-branch is executed).
        // If the number is not octal format and starts with zero (e.g. `091`)
        // then only the zeros `0` is treated here and the `91` are ordinary
        // characters.
        // Example:
        //   /\091/.exec('\091')[0].length === 3
        else if (res = matchReg(/^[0-7]{1,3}/)) {
            match = res[0];
            if (/^0{1,3}$/.test(match)) {
              // If they are all zeros, then only take the first one.
              return createEscaped('null', 0x0000, '0', match.length + 1);
            } else {
              return createEscaped('octal', parseInt(match, 8), match, 1);
            }
          } else if (res = matchReg(/^[dDsSwW]/)) {
            return createCharacterClassEscape(res[0]);
          }
        return false;
      }

      function parseCharacterEscape() {
        // CharacterEscape ::
        //      ControlEscape
        //      c ControlLetter
        //      HexEscapeSequence
        //      UnicodeEscapeSequence
        //      IdentityEscape

        var res;
        if (res = matchReg(/^[fnrtv]/)) {
          // ControlEscape
          var codePoint = 0;
          switch (res[0]) {
            case 't':
              codePoint = 0x009;break;
            case 'n':
              codePoint = 0x00A;break;
            case 'v':
              codePoint = 0x00B;break;
            case 'f':
              codePoint = 0x00C;break;
            case 'r':
              codePoint = 0x00D;break;
          }
          return createEscaped('singleEscape', codePoint, '\\' + res[0]);
        } else if (res = matchReg(/^c([a-zA-Z])/)) {
          // c ControlLetter
          return createEscaped('controlLetter', res[1].charCodeAt(0) % 32, res[1], 2);
        } else if (res = matchReg(/^x([0-9a-fA-F]{2})/)) {
          // HexEscapeSequence
          return createEscaped('hexadecimalEscape', parseInt(res[1], 16), res[1], 2);
        } else if (res = matchReg(/^u([0-9a-fA-F]{4})/)) {
          // UnicodeEscapeSequence
          return parseUnicodeSurrogatePairEscape(createEscaped('unicodeEscape', parseInt(res[1], 16), res[1], 2));
        } else if (hasUnicodeFlag && (res = matchReg(/^u\{([0-9a-fA-F]+)\}/))) {
          // RegExpUnicodeEscapeSequence (ES6 Unicode code point escape)
          return createEscaped('unicodeCodePointEscape', parseInt(res[1], 16), res[1], 4);
        } else {
          // IdentityEscape
          return parseIdentityEscape();
        }
      }

      // Taken from the Esprima parser.
      function isIdentifierPart(ch) {
        // Generated by `tools/generate-identifier-regex.js`.
        var NonAsciiIdentifierPart = new RegExp('[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u08A0-\u08B2\u08E4-\u0963\u0966-\u096F\u0971-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C00-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58\u0C59\u0C60-\u0C63\u0C66-\u0C6F\u0C81-\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D01-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D57\u0D60-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19D9\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1AB0-\u1ABD\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1CD0-\u1CD2\u1CD4-\u1CF6\u1CF8\u1CF9\u1D00-\u1DF5\u1DFC-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200C\u200D\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099\u309A\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA69D\uA69F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA7AD\uA7B0\uA7B1\uA7F7-\uA827\uA840-\uA873\uA880-\uA8C4\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uA9E0-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB5F\uAB64\uAB65\uABC0-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE2D\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]');

        return ch === 36 || ch === 95 || // $ (dollar) and _ (underscore)
        ch >= 65 && ch <= 90 || // A..Z
        ch >= 97 && ch <= 122 || // a..z
        ch >= 48 && ch <= 57 || // 0..9
        ch === 92 || // \ (backslash)
        ch >= 0x80 && NonAsciiIdentifierPart.test(String.fromCharCode(ch));
      }

      function parseIdentityEscape() {
        // IdentityEscape ::
        //      SourceCharacter but not IdentifierPart
        //      <ZWJ>
        //      <ZWNJ>

        var ZWJ = '\u200C';
        var ZWNJ = '\u200D';

        var tmp;

        if (!isIdentifierPart(lookahead())) {
          tmp = incr();
          return createEscaped('identifier', tmp.charCodeAt(0), tmp, 1);
        }

        if (match(ZWJ)) {
          // <ZWJ>
          return createEscaped('identifier', 0x200C, ZWJ);
        } else if (match(ZWNJ)) {
          // <ZWNJ>
          return createEscaped('identifier', 0x200D, ZWNJ);
        }

        return null;
      }

      function parseCharacterClass() {
        // CharacterClass ::
        //      [ [lookahead ∉ {^}] ClassRanges ]
        //      [ ^ ClassRanges ]

        var res,
            from = pos;
        if (res = matchReg(/^\[\^/)) {
          res = parseClassRanges();
          skip(']');
          return createCharacterClass(res, true, from, pos);
        } else if (match('[')) {
          res = parseClassRanges();
          skip(']');
          return createCharacterClass(res, false, from, pos);
        }

        return null;
      }

      function parseClassRanges() {
        // ClassRanges ::
        //      [empty]
        //      NonemptyClassRanges

        var res;
        if (current(']')) {
          // Empty array means nothing insinde of the ClassRange.
          return [];
        } else {
          res = parseNonemptyClassRanges();
          if (!res) {
            bail('nonEmptyClassRanges');
          }
          return res;
        }
      }

      function parseHelperClassRanges(atom) {
        var from, to, res;
        if (current('-') && !next(']')) {
          // ClassAtom - ClassAtom ClassRanges
          skip('-');

          res = parseClassAtom();
          if (!res) {
            bail('classAtom');
          }
          to = pos;
          var classRanges = parseClassRanges();
          if (!classRanges) {
            bail('classRanges');
          }
          from = atom.range[0];
          if (classRanges.type === 'empty') {
            return [createClassRange(atom, res, from, to)];
          }
          return [createClassRange(atom, res, from, to)].concat(classRanges);
        }

        res = parseNonemptyClassRangesNoDash();
        if (!res) {
          bail('nonEmptyClassRangesNoDash');
        }

        return [atom].concat(res);
      }

      function parseNonemptyClassRanges() {
        // NonemptyClassRanges ::
        //      ClassAtom
        //      ClassAtom NonemptyClassRangesNoDash
        //      ClassAtom - ClassAtom ClassRanges

        var atom = parseClassAtom();
        if (!atom) {
          bail('classAtom');
        }

        if (current(']')) {
          // ClassAtom
          return [atom];
        }

        // ClassAtom NonemptyClassRangesNoDash
        // ClassAtom - ClassAtom ClassRanges
        return parseHelperClassRanges(atom);
      }

      function parseNonemptyClassRangesNoDash() {
        // NonemptyClassRangesNoDash ::
        //      ClassAtom
        //      ClassAtomNoDash NonemptyClassRangesNoDash
        //      ClassAtomNoDash - ClassAtom ClassRanges

        var res = parseClassAtom();
        if (!res) {
          bail('classAtom');
        }
        if (current(']')) {
          //      ClassAtom
          return res;
        }

        // ClassAtomNoDash NonemptyClassRangesNoDash
        // ClassAtomNoDash - ClassAtom ClassRanges
        return parseHelperClassRanges(res);
      }

      function parseClassAtom() {
        // ClassAtom ::
        //      -
        //      ClassAtomNoDash
        if (match('-')) {
          return createCharacter('-');
        } else {
          return parseClassAtomNoDash();
        }
      }

      function parseClassAtomNoDash() {
        // ClassAtomNoDash ::
        //      SourceCharacter but not one of \ or ] or -
        //      \ ClassEscape

        var res;
        if (res = matchReg(/^[^\\\]-]/)) {
          return createCharacter(res[0]);
        } else if (match('\\')) {
          res = parseClassEscape();
          if (!res) {
            bail('classEscape');
          }

          return parseUnicodeSurrogatePairEscape(res);
        }
      }

      function bail(message, details, from, to) {
        from = from == null ? pos : from;
        to = to == null ? from : to;

        var contextStart = Math.max(0, from - 10);
        var contextEnd = Math.min(to + 10, str.length);

        // Output a bit of context and a line pointing to where our error is.
        //
        // We are assuming that there are no actual newlines in the content as this is a regular expression.
        var context = '    ' + str.substring(contextStart, contextEnd);
        var pointer = '    ' + new Array(from - contextStart + 1).join(' ') + '^';

        throw SyntaxError(message + ' at position ' + from + (details ? ': ' + details : '') + '\n' + context + '\n' + pointer);
      }

      var backrefDenied = [];
      var closedCaptureCounter = 0;
      var firstIteration = true;
      var hasUnicodeFlag = (flags || "").indexOf("u") !== -1;
      var pos = 0;

      // Convert the input to a string and treat the empty string special.
      str = String(str);
      if (str === '') {
        str = '(?:)';
      }

      var result = parseDisjunction();

      if (result.range[1] !== str.length) {
        bail('Could not parse entire input - got stuck', '', result.range[1]);
      }

      // The spec requires to interpret the `\2` in `/\2()()/` as backreference.
      // As the parser collects the number of capture groups as the string is
      // parsed it is impossible to make these decisions at the point when the
      // `\2` is handled. In case the local decision turns out to be wrong after
      // the parsing has finished, the input string is parsed a second time with
      // the total number of capture groups set.
      //
      // SEE: https://github.com/jviereck/regjsparser/issues/70
      for (var i = 0; i < backrefDenied.length; i++) {
        if (backrefDenied[i] <= closedCaptureCounter) {
          // Parse the input a second time.
          pos = 0;
          firstIteration = false;
          return parseDisjunction();
        }
      }

      return result;
    }

    var regjsparser = {
      parse: parse
    };

    if (typeof module !== 'undefined' && module.exports) {
      module.exports = regjsparser;
    } else {
      window.regjsparser = regjsparser;
    }
  })();
});
$__System.registerDynamic("126", [], true, function() {
  return {
    "75": 8490,
    "83": 383,
    "107": 8490,
    "115": 383,
    "181": 924,
    "197": 8491,
    "383": 83,
    "452": 453,
    "453": 452,
    "455": 456,
    "456": 455,
    "458": 459,
    "459": 458,
    "497": 498,
    "498": 497,
    "837": 8126,
    "914": 976,
    "917": 1013,
    "920": 1012,
    "921": 8126,
    "922": 1008,
    "924": 181,
    "928": 982,
    "929": 1009,
    "931": 962,
    "934": 981,
    "937": 8486,
    "962": 931,
    "976": 914,
    "977": 1012,
    "981": 934,
    "982": 928,
    "1008": 922,
    "1009": 929,
    "1012": [
      920,
      977
    ],
    "1013": 917,
    "7776": 7835,
    "7835": 7776,
    "8126": [
      837,
      921
    ],
    "8486": 937,
    "8490": 75,
    "8491": 197,
    "66560": 66600,
    "66561": 66601,
    "66562": 66602,
    "66563": 66603,
    "66564": 66604,
    "66565": 66605,
    "66566": 66606,
    "66567": 66607,
    "66568": 66608,
    "66569": 66609,
    "66570": 66610,
    "66571": 66611,
    "66572": 66612,
    "66573": 66613,
    "66574": 66614,
    "66575": 66615,
    "66576": 66616,
    "66577": 66617,
    "66578": 66618,
    "66579": 66619,
    "66580": 66620,
    "66581": 66621,
    "66582": 66622,
    "66583": 66623,
    "66584": 66624,
    "66585": 66625,
    "66586": 66626,
    "66587": 66627,
    "66588": 66628,
    "66589": 66629,
    "66590": 66630,
    "66591": 66631,
    "66592": 66632,
    "66593": 66633,
    "66594": 66634,
    "66595": 66635,
    "66596": 66636,
    "66597": 66637,
    "66598": 66638,
    "66599": 66639,
    "66600": 66560,
    "66601": 66561,
    "66602": 66562,
    "66603": 66563,
    "66604": 66564,
    "66605": 66565,
    "66606": 66566,
    "66607": 66567,
    "66608": 66568,
    "66609": 66569,
    "66610": 66570,
    "66611": 66571,
    "66612": 66572,
    "66613": 66573,
    "66614": 66574,
    "66615": 66575,
    "66616": 66576,
    "66617": 66577,
    "66618": 66578,
    "66619": 66579,
    "66620": 66580,
    "66621": 66581,
    "66622": 66582,
    "66623": 66583,
    "66624": 66584,
    "66625": 66585,
    "66626": 66586,
    "66627": 66587,
    "66628": 66588,
    "66629": 66589,
    "66630": 66590,
    "66631": 66591,
    "66632": 66592,
    "66633": 66593,
    "66634": 66594,
    "66635": 66595,
    "66636": 66596,
    "66637": 66597,
    "66638": 66598,
    "66639": 66599,
    "68736": 68800,
    "68737": 68801,
    "68738": 68802,
    "68739": 68803,
    "68740": 68804,
    "68741": 68805,
    "68742": 68806,
    "68743": 68807,
    "68744": 68808,
    "68745": 68809,
    "68746": 68810,
    "68747": 68811,
    "68748": 68812,
    "68749": 68813,
    "68750": 68814,
    "68751": 68815,
    "68752": 68816,
    "68753": 68817,
    "68754": 68818,
    "68755": 68819,
    "68756": 68820,
    "68757": 68821,
    "68758": 68822,
    "68759": 68823,
    "68760": 68824,
    "68761": 68825,
    "68762": 68826,
    "68763": 68827,
    "68764": 68828,
    "68765": 68829,
    "68766": 68830,
    "68767": 68831,
    "68768": 68832,
    "68769": 68833,
    "68770": 68834,
    "68771": 68835,
    "68772": 68836,
    "68773": 68837,
    "68774": 68838,
    "68775": 68839,
    "68776": 68840,
    "68777": 68841,
    "68778": 68842,
    "68779": 68843,
    "68780": 68844,
    "68781": 68845,
    "68782": 68846,
    "68783": 68847,
    "68784": 68848,
    "68785": 68849,
    "68786": 68850,
    "68800": 68736,
    "68801": 68737,
    "68802": 68738,
    "68803": 68739,
    "68804": 68740,
    "68805": 68741,
    "68806": 68742,
    "68807": 68743,
    "68808": 68744,
    "68809": 68745,
    "68810": 68746,
    "68811": 68747,
    "68812": 68748,
    "68813": 68749,
    "68814": 68750,
    "68815": 68751,
    "68816": 68752,
    "68817": 68753,
    "68818": 68754,
    "68819": 68755,
    "68820": 68756,
    "68821": 68757,
    "68822": 68758,
    "68823": 68759,
    "68824": 68760,
    "68825": 68761,
    "68826": 68762,
    "68827": 68763,
    "68828": 68764,
    "68829": 68765,
    "68830": 68766,
    "68831": 68767,
    "68832": 68768,
    "68833": 68769,
    "68834": 68770,
    "68835": 68771,
    "68836": 68772,
    "68837": 68773,
    "68838": 68774,
    "68839": 68775,
    "68840": 68776,
    "68841": 68777,
    "68842": 68778,
    "68843": 68779,
    "68844": 68780,
    "68845": 68781,
    "68846": 68782,
    "68847": 68783,
    "68848": 68784,
    "68849": 68785,
    "68850": 68786,
    "71840": 71872,
    "71841": 71873,
    "71842": 71874,
    "71843": 71875,
    "71844": 71876,
    "71845": 71877,
    "71846": 71878,
    "71847": 71879,
    "71848": 71880,
    "71849": 71881,
    "71850": 71882,
    "71851": 71883,
    "71852": 71884,
    "71853": 71885,
    "71854": 71886,
    "71855": 71887,
    "71856": 71888,
    "71857": 71889,
    "71858": 71890,
    "71859": 71891,
    "71860": 71892,
    "71861": 71893,
    "71862": 71894,
    "71863": 71895,
    "71864": 71896,
    "71865": 71897,
    "71866": 71898,
    "71867": 71899,
    "71868": 71900,
    "71869": 71901,
    "71870": 71902,
    "71871": 71903,
    "71872": 71840,
    "71873": 71841,
    "71874": 71842,
    "71875": 71843,
    "71876": 71844,
    "71877": 71845,
    "71878": 71846,
    "71879": 71847,
    "71880": 71848,
    "71881": 71849,
    "71882": 71850,
    "71883": 71851,
    "71884": 71852,
    "71885": 71853,
    "71886": 71854,
    "71887": 71855,
    "71888": 71856,
    "71889": 71857,
    "71890": 71858,
    "71891": 71859,
    "71892": 71860,
    "71893": 71861,
    "71894": 71862,
    "71895": 71863,
    "71896": 71864,
    "71897": 71865,
    "71898": 71866,
    "71899": 71867,
    "71900": 71868,
    "71901": 71869,
    "71902": 71870,
    "71903": 71871
  };
});

$__System.registerDynamic('127', [], true, function ($__require, exports, module) {
	var global = this || self,
	    GLOBAL = global;
	/*! https://mths.be/regenerate v1.3.2 by @mathias | MIT license */
	;(function (root) {

		// Detect free variables `exports`.
		var freeExports = typeof exports == 'object' && exports;

		// Detect free variable `module`.
		var freeModule = typeof module == 'object' && module && module.exports == freeExports && module;

		// Detect free variable `global`, from Node.js/io.js or Browserified code,
		// and use it as `root`.
		var freeGlobal = typeof global == 'object' && global;
		if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
			root = freeGlobal;
		}

		/*--------------------------------------------------------------------------*/

		var ERRORS = {
			'rangeOrder': 'A range\u2019s `stop` value must be greater than or equal ' + 'to the `start` value.',
			'codePointRange': 'Invalid code point value. Code points range from ' + 'U+000000 to U+10FFFF.'
		};

		// https://mathiasbynens.be/notes/javascript-encoding#surrogate-pairs
		var HIGH_SURROGATE_MIN = 0xD800;
		var HIGH_SURROGATE_MAX = 0xDBFF;
		var LOW_SURROGATE_MIN = 0xDC00;
		var LOW_SURROGATE_MAX = 0xDFFF;

		// In Regenerate output, `\0` is never preceded by `\` because we sort by
		// code point value, so let’s keep this regular expression simple.
		var regexNull = /\\x00([^0123456789]|$)/g;

		var object = {};
		var hasOwnProperty = object.hasOwnProperty;
		var extend = function (destination, source) {
			var key;
			for (key in source) {
				if (hasOwnProperty.call(source, key)) {
					destination[key] = source[key];
				}
			}
			return destination;
		};

		var forEach = function (array, callback) {
			var index = -1;
			var length = array.length;
			while (++index < length) {
				callback(array[index], index);
			}
		};

		var toString = object.toString;
		var isArray = function (value) {
			return toString.call(value) == '[object Array]';
		};
		var isNumber = function (value) {
			return typeof value == 'number' || toString.call(value) == '[object Number]';
		};

		// This assumes that `number` is a positive integer that `toString()`s nicely
		// (which is the case for all code point values).
		var zeroes = '0000';
		var pad = function (number, totalCharacters) {
			var string = String(number);
			return string.length < totalCharacters ? (zeroes + string).slice(-totalCharacters) : string;
		};

		var hex = function (number) {
			return Number(number).toString(16).toUpperCase();
		};

		var slice = [].slice;

		/*--------------------------------------------------------------------------*/

		var dataFromCodePoints = function (codePoints) {
			var index = -1;
			var length = codePoints.length;
			var max = length - 1;
			var result = [];
			var isStart = true;
			var tmp;
			var previous = 0;
			while (++index < length) {
				tmp = codePoints[index];
				if (isStart) {
					result.push(tmp);
					previous = tmp;
					isStart = false;
				} else {
					if (tmp == previous + 1) {
						if (index != max) {
							previous = tmp;
							continue;
						} else {
							isStart = true;
							result.push(tmp + 1);
						}
					} else {
						// End the previous range and start a new one.
						result.push(previous + 1, tmp);
						previous = tmp;
					}
				}
			}
			if (!isStart) {
				result.push(tmp + 1);
			}
			return result;
		};

		var dataRemove = function (data, codePoint) {
			// Iterate over the data per `(start, end)` pair.
			var index = 0;
			var start;
			var end;
			var length = data.length;
			while (index < length) {
				start = data[index];
				end = data[index + 1];
				if (codePoint >= start && codePoint < end) {
					// Modify this pair.
					if (codePoint == start) {
						if (end == start + 1) {
							// Just remove `start` and `end`.
							data.splice(index, 2);
							return data;
						} else {
							// Just replace `start` with a new value.
							data[index] = codePoint + 1;
							return data;
						}
					} else if (codePoint == end - 1) {
						// Just replace `end` with a new value.
						data[index + 1] = codePoint;
						return data;
					} else {
						// Replace `[start, end]` with `[startA, endA, startB, endB]`.
						data.splice(index, 2, start, codePoint, codePoint + 1, end);
						return data;
					}
				}
				index += 2;
			}
			return data;
		};

		var dataRemoveRange = function (data, rangeStart, rangeEnd) {
			if (rangeEnd < rangeStart) {
				throw Error(ERRORS.rangeOrder);
			}
			// Iterate over the data per `(start, end)` pair.
			var index = 0;
			var start;
			var end;
			while (index < data.length) {
				start = data[index];
				end = data[index + 1] - 1; // Note: the `- 1` makes `end` inclusive.

				// Exit as soon as no more matching pairs can be found.
				if (start > rangeEnd) {
					return data;
				}

				// Check if this range pair is equal to, or forms a subset of, the range
				// to be removed.
				// E.g. we have `[0, 11, 40, 51]` and want to remove 0-10 → `[40, 51]`.
				// E.g. we have `[40, 51]` and want to remove 0-100 → `[]`.
				if (rangeStart <= start && rangeEnd >= end) {
					// Remove this pair.
					data.splice(index, 2);
					continue;
				}

				// Check if both `rangeStart` and `rangeEnd` are within the bounds of
				// this pair.
				// E.g. we have `[0, 11]` and want to remove 4-6 → `[0, 4, 7, 11]`.
				if (rangeStart >= start && rangeEnd < end) {
					if (rangeStart == start) {
						// Replace `[start, end]` with `[startB, endB]`.
						data[index] = rangeEnd + 1;
						data[index + 1] = end + 1;
						return data;
					}
					// Replace `[start, end]` with `[startA, endA, startB, endB]`.
					data.splice(index, 2, start, rangeStart, rangeEnd + 1, end + 1);
					return data;
				}

				// Check if only `rangeStart` is within the bounds of this pair.
				// E.g. we have `[0, 11]` and want to remove 4-20 → `[0, 4]`.
				if (rangeStart >= start && rangeStart <= end) {
					// Replace `end` with `rangeStart`.
					data[index + 1] = rangeStart;
					// Note: we cannot `return` just yet, in case any following pairs still
					// contain matching code points.
					// E.g. we have `[0, 11, 14, 31]` and want to remove 4-20
					// → `[0, 4, 21, 31]`.
				}

				// Check if only `rangeEnd` is within the bounds of this pair.
				// E.g. we have `[14, 31]` and want to remove 4-20 → `[21, 31]`.
				else if (rangeEnd >= start && rangeEnd <= end) {
						// Just replace `start`.
						data[index] = rangeEnd + 1;
						return data;
					}

				index += 2;
			}
			return data;
		};

		var dataAdd = function (data, codePoint) {
			// Iterate over the data per `(start, end)` pair.
			var index = 0;
			var start;
			var end;
			var lastIndex = null;
			var length = data.length;
			if (codePoint < 0x0 || codePoint > 0x10FFFF) {
				throw RangeError(ERRORS.codePointRange);
			}
			while (index < length) {
				start = data[index];
				end = data[index + 1];

				// Check if the code point is already in the set.
				if (codePoint >= start && codePoint < end) {
					return data;
				}

				if (codePoint == start - 1) {
					// Just replace `start` with a new value.
					data[index] = codePoint;
					return data;
				}

				// At this point, if `start` is `greater` than `codePoint`, insert a new
				// `[start, end]` pair before the current pair, or after the current pair
				// if there is a known `lastIndex`.
				if (start > codePoint) {
					data.splice(lastIndex != null ? lastIndex + 2 : 0, 0, codePoint, codePoint + 1);
					return data;
				}

				if (codePoint == end) {
					// Check if adding this code point causes two separate ranges to become
					// a single range, e.g. `dataAdd([0, 4, 5, 10], 4)` → `[0, 10]`.
					if (codePoint + 1 == data[index + 2]) {
						data.splice(index, 4, start, data[index + 3]);
						return data;
					}
					// Else, just replace `end` with a new value.
					data[index + 1] = codePoint + 1;
					return data;
				}
				lastIndex = index;
				index += 2;
			}
			// The loop has finished; add the new pair to the end of the data set.
			data.push(codePoint, codePoint + 1);
			return data;
		};

		var dataAddData = function (dataA, dataB) {
			// Iterate over the data per `(start, end)` pair.
			var index = 0;
			var start;
			var end;
			var data = dataA.slice();
			var length = dataB.length;
			while (index < length) {
				start = dataB[index];
				end = dataB[index + 1] - 1;
				if (start == end) {
					data = dataAdd(data, start);
				} else {
					data = dataAddRange(data, start, end);
				}
				index += 2;
			}
			return data;
		};

		var dataRemoveData = function (dataA, dataB) {
			// Iterate over the data per `(start, end)` pair.
			var index = 0;
			var start;
			var end;
			var data = dataA.slice();
			var length = dataB.length;
			while (index < length) {
				start = dataB[index];
				end = dataB[index + 1] - 1;
				if (start == end) {
					data = dataRemove(data, start);
				} else {
					data = dataRemoveRange(data, start, end);
				}
				index += 2;
			}
			return data;
		};

		var dataAddRange = function (data, rangeStart, rangeEnd) {
			if (rangeEnd < rangeStart) {
				throw Error(ERRORS.rangeOrder);
			}
			if (rangeStart < 0x0 || rangeStart > 0x10FFFF || rangeEnd < 0x0 || rangeEnd > 0x10FFFF) {
				throw RangeError(ERRORS.codePointRange);
			}
			// Iterate over the data per `(start, end)` pair.
			var index = 0;
			var start;
			var end;
			var added = false;
			var length = data.length;
			while (index < length) {
				start = data[index];
				end = data[index + 1];

				if (added) {
					// The range has already been added to the set; at this point, we just
					// need to get rid of the following ranges in case they overlap.

					// Check if this range can be combined with the previous range.
					if (start == rangeEnd + 1) {
						data.splice(index - 1, 2);
						return data;
					}

					// Exit as soon as no more possibly overlapping pairs can be found.
					if (start > rangeEnd) {
						return data;
					}

					// E.g. `[0, 11, 12, 16]` and we’ve added 5-15, so we now have
					// `[0, 16, 12, 16]`. Remove the `12,16` part, as it lies within the
					// `0,16` range that was previously added.
					if (start >= rangeStart && start <= rangeEnd) {
						// `start` lies within the range that was previously added.

						if (end > rangeStart && end - 1 <= rangeEnd) {
							// `end` lies within the range that was previously added as well,
							// so remove this pair.
							data.splice(index, 2);
							index -= 2;
							// Note: we cannot `return` just yet, as there may still be other
							// overlapping pairs.
						} else {
							// `start` lies within the range that was previously added, but
							// `end` doesn’t. E.g. `[0, 11, 12, 31]` and we’ve added 5-15, so
							// now we have `[0, 16, 12, 31]`. This must be written as `[0, 31]`.
							// Remove the previously added `end` and the current `start`.
							data.splice(index - 1, 2);
							index -= 2;
						}

						// Note: we cannot return yet.
					}
				} else if (start == rangeEnd + 1) {
					data[index] = rangeStart;
					return data;
				}

				// Check if a new pair must be inserted *before* the current one.
				else if (start > rangeEnd) {
						data.splice(index, 0, rangeStart, rangeEnd + 1);
						return data;
					} else if (rangeStart >= start && rangeStart < end && rangeEnd + 1 <= end) {
						// The new range lies entirely within an existing range pair. No action
						// needed.
						return data;
					} else if (
					// E.g. `[0, 11]` and you add 5-15 → `[0, 16]`.
					rangeStart >= start && rangeStart < end ||
					// E.g. `[0, 3]` and you add 3-6 → `[0, 7]`.
					end == rangeStart) {
						// Replace `end` with the new value.
						data[index + 1] = rangeEnd + 1;
						// Make sure the next range pair doesn’t overlap, e.g. `[0, 11, 12, 14]`
						// and you add 5-15 → `[0, 16]`, i.e. remove the `12,14` part.
						added = true;
						// Note: we cannot `return` just yet.
					} else if (rangeStart <= start && rangeEnd + 1 >= end) {
						// The new range is a superset of the old range.
						data[index] = rangeStart;
						data[index + 1] = rangeEnd + 1;
						added = true;
					}

				index += 2;
			}
			// The loop has finished without doing anything; add the new pair to the end
			// of the data set.
			if (!added) {
				data.push(rangeStart, rangeEnd + 1);
			}
			return data;
		};

		var dataContains = function (data, codePoint) {
			var index = 0;
			var length = data.length;
			// Exit early if `codePoint` is not within `data`’s overall range.
			var start = data[index];
			var end = data[length - 1];
			if (length >= 2) {
				if (codePoint < start || codePoint > end) {
					return false;
				}
			}
			// Iterate over the data per `(start, end)` pair.
			while (index < length) {
				start = data[index];
				end = data[index + 1];
				if (codePoint >= start && codePoint < end) {
					return true;
				}
				index += 2;
			}
			return false;
		};

		var dataIntersection = function (data, codePoints) {
			var index = 0;
			var length = codePoints.length;
			var codePoint;
			var result = [];
			while (index < length) {
				codePoint = codePoints[index];
				if (dataContains(data, codePoint)) {
					result.push(codePoint);
				}
				++index;
			}
			return dataFromCodePoints(result);
		};

		var dataIsEmpty = function (data) {
			return !data.length;
		};

		var dataIsSingleton = function (data) {
			// Check if the set only represents a single code point.
			return data.length == 2 && data[0] + 1 == data[1];
		};

		var dataToArray = function (data) {
			// Iterate over the data per `(start, end)` pair.
			var index = 0;
			var start;
			var end;
			var result = [];
			var length = data.length;
			while (index < length) {
				start = data[index];
				end = data[index + 1];
				while (start < end) {
					result.push(start);
					++start;
				}
				index += 2;
			}
			return result;
		};

		/*--------------------------------------------------------------------------*/

		// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
		var floor = Math.floor;
		var highSurrogate = function (codePoint) {
			return parseInt(floor((codePoint - 0x10000) / 0x400) + HIGH_SURROGATE_MIN, 10);
		};

		var lowSurrogate = function (codePoint) {
			return parseInt((codePoint - 0x10000) % 0x400 + LOW_SURROGATE_MIN, 10);
		};

		var stringFromCharCode = String.fromCharCode;
		var codePointToString = function (codePoint) {
			var string;
			// https://mathiasbynens.be/notes/javascript-escapes#single
			// Note: the `\b` escape sequence for U+0008 BACKSPACE in strings has a
			// different meaning in regular expressions (word boundary), so it cannot
			// be used here.
			if (codePoint == 0x09) {
				string = '\\t';
			}
			// Note: IE < 9 treats `'\v'` as `'v'`, so avoid using it.
			// else if (codePoint == 0x0B) {
			// 	string = '\\v';
			// }
			else if (codePoint == 0x0A) {
					string = '\\n';
				} else if (codePoint == 0x0C) {
					string = '\\f';
				} else if (codePoint == 0x0D) {
					string = '\\r';
				} else if (codePoint == 0x5C) {
					string = '\\\\';
				} else if (codePoint == 0x24 || codePoint >= 0x28 && codePoint <= 0x2B || codePoint == 0x2D || codePoint == 0x2E || codePoint == 0x3F || codePoint >= 0x5B && codePoint <= 0x5E || codePoint >= 0x7B && codePoint <= 0x7D) {
					// The code point maps to an unsafe printable ASCII character;
					// backslash-escape it. Here’s the list of those symbols:
					//
					//     $()*+-.?[\]^{|}
					//
					// See #7 for more info.
					string = '\\' + stringFromCharCode(codePoint);
				} else if (codePoint >= 0x20 && codePoint <= 0x7E) {
					// The code point maps to one of these printable ASCII symbols
					// (including the space character):
					//
					//      !"#%&',/0123456789:;<=>@ABCDEFGHIJKLMNO
					//     PQRSTUVWXYZ_`abcdefghijklmnopqrstuvwxyz~
					//
					// These can safely be used directly.
					string = stringFromCharCode(codePoint);
				} else if (codePoint <= 0xFF) {
					// https://mathiasbynens.be/notes/javascript-escapes#hexadecimal
					string = '\\x' + pad(hex(codePoint), 2);
				} else {
					// `codePoint <= 0xFFFF` holds true.
					// https://mathiasbynens.be/notes/javascript-escapes#unicode
					string = '\\u' + pad(hex(codePoint), 4);
				}

			// There’s no need to account for astral symbols / surrogate pairs here,
			// since `codePointToString` is private and only used for BMP code points.
			// But if that’s what you need, just add an `else` block with this code:
			//
			//     string = '\\u' + pad(hex(highSurrogate(codePoint)), 4)
			//     	+ '\\u' + pad(hex(lowSurrogate(codePoint)), 4);

			return string;
		};

		var codePointToStringUnicode = function (codePoint) {
			if (codePoint <= 0xFFFF) {
				return codePointToString(codePoint);
			}
			return '\\u{' + codePoint.toString(16).toUpperCase() + '}';
		};

		var symbolToCodePoint = function (symbol) {
			var length = symbol.length;
			var first = symbol.charCodeAt(0);
			var second;
			if (first >= HIGH_SURROGATE_MIN && first <= HIGH_SURROGATE_MAX && length > 1 // There is a next code unit.
			) {
					// `first` is a high surrogate, and there is a next character. Assume
					// it’s a low surrogate (else it’s invalid usage of Regenerate anyway).
					second = symbol.charCodeAt(1);
					// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
					return (first - HIGH_SURROGATE_MIN) * 0x400 + second - LOW_SURROGATE_MIN + 0x10000;
				}
			return first;
		};

		var createBMPCharacterClasses = function (data) {
			// Iterate over the data per `(start, end)` pair.
			var result = '';
			var index = 0;
			var start;
			var end;
			var length = data.length;
			if (dataIsSingleton(data)) {
				return codePointToString(data[0]);
			}
			while (index < length) {
				start = data[index];
				end = data[index + 1] - 1; // Note: the `- 1` makes `end` inclusive.
				if (start == end) {
					result += codePointToString(start);
				} else if (start + 1 == end) {
					result += codePointToString(start) + codePointToString(end);
				} else {
					result += codePointToString(start) + '-' + codePointToString(end);
				}
				index += 2;
			}
			return '[' + result + ']';
		};

		var createUnicodeCharacterClasses = function (data) {
			// Iterate over the data per `(start, end)` pair.
			var result = '';
			var index = 0;
			var start;
			var end;
			var length = data.length;
			if (dataIsSingleton(data)) {
				return codePointToStringUnicode(data[0]);
			}
			while (index < length) {
				start = data[index];
				end = data[index + 1] - 1; // Note: the `- 1` makes `end` inclusive.
				if (start == end) {
					result += codePointToStringUnicode(start);
				} else if (start + 1 == end) {
					result += codePointToStringUnicode(start) + codePointToStringUnicode(end);
				} else {
					result += codePointToStringUnicode(start) + '-' + codePointToStringUnicode(end);
				}
				index += 2;
			}
			return '[' + result + ']';
		};

		var splitAtBMP = function (data) {
			// Iterate over the data per `(start, end)` pair.
			var loneHighSurrogates = [];
			var loneLowSurrogates = [];
			var bmp = [];
			var astral = [];
			var index = 0;
			var start;
			var end;
			var length = data.length;
			while (index < length) {
				start = data[index];
				end = data[index + 1] - 1; // Note: the `- 1` makes `end` inclusive.

				if (start < HIGH_SURROGATE_MIN) {

					// The range starts and ends before the high surrogate range.
					// E.g. (0, 0x10).
					if (end < HIGH_SURROGATE_MIN) {
						bmp.push(start, end + 1);
					}

					// The range starts before the high surrogate range and ends within it.
					// E.g. (0, 0xD855).
					if (end >= HIGH_SURROGATE_MIN && end <= HIGH_SURROGATE_MAX) {
						bmp.push(start, HIGH_SURROGATE_MIN);
						loneHighSurrogates.push(HIGH_SURROGATE_MIN, end + 1);
					}

					// The range starts before the high surrogate range and ends in the low
					// surrogate range. E.g. (0, 0xDCFF).
					if (end >= LOW_SURROGATE_MIN && end <= LOW_SURROGATE_MAX) {
						bmp.push(start, HIGH_SURROGATE_MIN);
						loneHighSurrogates.push(HIGH_SURROGATE_MIN, HIGH_SURROGATE_MAX + 1);
						loneLowSurrogates.push(LOW_SURROGATE_MIN, end + 1);
					}

					// The range starts before the high surrogate range and ends after the
					// low surrogate range. E.g. (0, 0x10FFFF).
					if (end > LOW_SURROGATE_MAX) {
						bmp.push(start, HIGH_SURROGATE_MIN);
						loneHighSurrogates.push(HIGH_SURROGATE_MIN, HIGH_SURROGATE_MAX + 1);
						loneLowSurrogates.push(LOW_SURROGATE_MIN, LOW_SURROGATE_MAX + 1);
						if (end <= 0xFFFF) {
							bmp.push(LOW_SURROGATE_MAX + 1, end + 1);
						} else {
							bmp.push(LOW_SURROGATE_MAX + 1, 0xFFFF + 1);
							astral.push(0xFFFF + 1, end + 1);
						}
					}
				} else if (start >= HIGH_SURROGATE_MIN && start <= HIGH_SURROGATE_MAX) {

					// The range starts and ends in the high surrogate range.
					// E.g. (0xD855, 0xD866).
					if (end >= HIGH_SURROGATE_MIN && end <= HIGH_SURROGATE_MAX) {
						loneHighSurrogates.push(start, end + 1);
					}

					// The range starts in the high surrogate range and ends in the low
					// surrogate range. E.g. (0xD855, 0xDCFF).
					if (end >= LOW_SURROGATE_MIN && end <= LOW_SURROGATE_MAX) {
						loneHighSurrogates.push(start, HIGH_SURROGATE_MAX + 1);
						loneLowSurrogates.push(LOW_SURROGATE_MIN, end + 1);
					}

					// The range starts in the high surrogate range and ends after the low
					// surrogate range. E.g. (0xD855, 0x10FFFF).
					if (end > LOW_SURROGATE_MAX) {
						loneHighSurrogates.push(start, HIGH_SURROGATE_MAX + 1);
						loneLowSurrogates.push(LOW_SURROGATE_MIN, LOW_SURROGATE_MAX + 1);
						if (end <= 0xFFFF) {
							bmp.push(LOW_SURROGATE_MAX + 1, end + 1);
						} else {
							bmp.push(LOW_SURROGATE_MAX + 1, 0xFFFF + 1);
							astral.push(0xFFFF + 1, end + 1);
						}
					}
				} else if (start >= LOW_SURROGATE_MIN && start <= LOW_SURROGATE_MAX) {

					// The range starts and ends in the low surrogate range.
					// E.g. (0xDCFF, 0xDDFF).
					if (end >= LOW_SURROGATE_MIN && end <= LOW_SURROGATE_MAX) {
						loneLowSurrogates.push(start, end + 1);
					}

					// The range starts in the low surrogate range and ends after the low
					// surrogate range. E.g. (0xDCFF, 0x10FFFF).
					if (end > LOW_SURROGATE_MAX) {
						loneLowSurrogates.push(start, LOW_SURROGATE_MAX + 1);
						if (end <= 0xFFFF) {
							bmp.push(LOW_SURROGATE_MAX + 1, end + 1);
						} else {
							bmp.push(LOW_SURROGATE_MAX + 1, 0xFFFF + 1);
							astral.push(0xFFFF + 1, end + 1);
						}
					}
				} else if (start > LOW_SURROGATE_MAX && start <= 0xFFFF) {

					// The range starts and ends after the low surrogate range.
					// E.g. (0xFFAA, 0x10FFFF).
					if (end <= 0xFFFF) {
						bmp.push(start, end + 1);
					} else {
						bmp.push(start, 0xFFFF + 1);
						astral.push(0xFFFF + 1, end + 1);
					}
				} else {

					// The range starts and ends in the astral range.
					astral.push(start, end + 1);
				}

				index += 2;
			}
			return {
				'loneHighSurrogates': loneHighSurrogates,
				'loneLowSurrogates': loneLowSurrogates,
				'bmp': bmp,
				'astral': astral
			};
		};

		var optimizeSurrogateMappings = function (surrogateMappings) {
			var result = [];
			var tmpLow = [];
			var addLow = false;
			var mapping;
			var nextMapping;
			var highSurrogates;
			var lowSurrogates;
			var nextHighSurrogates;
			var nextLowSurrogates;
			var index = -1;
			var length = surrogateMappings.length;
			while (++index < length) {
				mapping = surrogateMappings[index];
				nextMapping = surrogateMappings[index + 1];
				if (!nextMapping) {
					result.push(mapping);
					continue;
				}
				highSurrogates = mapping[0];
				lowSurrogates = mapping[1];
				nextHighSurrogates = nextMapping[0];
				nextLowSurrogates = nextMapping[1];

				// Check for identical high surrogate ranges.
				tmpLow = lowSurrogates;
				while (nextHighSurrogates && highSurrogates[0] == nextHighSurrogates[0] && highSurrogates[1] == nextHighSurrogates[1]) {
					// Merge with the next item.
					if (dataIsSingleton(nextLowSurrogates)) {
						tmpLow = dataAdd(tmpLow, nextLowSurrogates[0]);
					} else {
						tmpLow = dataAddRange(tmpLow, nextLowSurrogates[0], nextLowSurrogates[1] - 1);
					}
					++index;
					mapping = surrogateMappings[index];
					highSurrogates = mapping[0];
					lowSurrogates = mapping[1];
					nextMapping = surrogateMappings[index + 1];
					nextHighSurrogates = nextMapping && nextMapping[0];
					nextLowSurrogates = nextMapping && nextMapping[1];
					addLow = true;
				}
				result.push([highSurrogates, addLow ? tmpLow : lowSurrogates]);
				addLow = false;
			}
			return optimizeByLowSurrogates(result);
		};

		var optimizeByLowSurrogates = function (surrogateMappings) {
			if (surrogateMappings.length == 1) {
				return surrogateMappings;
			}
			var index = -1;
			var innerIndex = -1;
			while (++index < surrogateMappings.length) {
				var mapping = surrogateMappings[index];
				var lowSurrogates = mapping[1];
				var lowSurrogateStart = lowSurrogates[0];
				var lowSurrogateEnd = lowSurrogates[1];
				innerIndex = index; // Note: the loop starts at the next index.
				while (++innerIndex < surrogateMappings.length) {
					var otherMapping = surrogateMappings[innerIndex];
					var otherLowSurrogates = otherMapping[1];
					var otherLowSurrogateStart = otherLowSurrogates[0];
					var otherLowSurrogateEnd = otherLowSurrogates[1];
					if (lowSurrogateStart == otherLowSurrogateStart && lowSurrogateEnd == otherLowSurrogateEnd) {
						// Add the code points in the other item to this one.
						if (dataIsSingleton(otherMapping[0])) {
							mapping[0] = dataAdd(mapping[0], otherMapping[0][0]);
						} else {
							mapping[0] = dataAddRange(mapping[0], otherMapping[0][0], otherMapping[0][1] - 1);
						}
						// Remove the other, now redundant, item.
						surrogateMappings.splice(innerIndex, 1);
						--innerIndex;
					}
				}
			}
			return surrogateMappings;
		};

		var surrogateSet = function (data) {
			// Exit early if `data` is an empty set.
			if (!data.length) {
				return [];
			}

			// Iterate over the data per `(start, end)` pair.
			var index = 0;
			var start;
			var end;
			var startHigh;
			var startLow;
			var endHigh;
			var endLow;
			var surrogateMappings = [];
			var length = data.length;
			while (index < length) {
				start = data[index];
				end = data[index + 1] - 1;

				startHigh = highSurrogate(start);
				startLow = lowSurrogate(start);
				endHigh = highSurrogate(end);
				endLow = lowSurrogate(end);

				var startsWithLowestLowSurrogate = startLow == LOW_SURROGATE_MIN;
				var endsWithHighestLowSurrogate = endLow == LOW_SURROGATE_MAX;
				var complete = false;

				// Append the previous high-surrogate-to-low-surrogate mappings.
				// Step 1: `(startHigh, startLow)` to `(startHigh, LOW_SURROGATE_MAX)`.
				if (startHigh == endHigh || startsWithLowestLowSurrogate && endsWithHighestLowSurrogate) {
					surrogateMappings.push([[startHigh, endHigh + 1], [startLow, endLow + 1]]);
					complete = true;
				} else {
					surrogateMappings.push([[startHigh, startHigh + 1], [startLow, LOW_SURROGATE_MAX + 1]]);
				}

				// Step 2: `(startHigh + 1, LOW_SURROGATE_MIN)` to
				// `(endHigh - 1, LOW_SURROGATE_MAX)`.
				if (!complete && startHigh + 1 < endHigh) {
					if (endsWithHighestLowSurrogate) {
						// Combine step 2 and step 3.
						surrogateMappings.push([[startHigh + 1, endHigh + 1], [LOW_SURROGATE_MIN, endLow + 1]]);
						complete = true;
					} else {
						surrogateMappings.push([[startHigh + 1, endHigh], [LOW_SURROGATE_MIN, LOW_SURROGATE_MAX + 1]]);
					}
				}

				// Step 3. `(endHigh, LOW_SURROGATE_MIN)` to `(endHigh, endLow)`.
				if (!complete) {
					surrogateMappings.push([[endHigh, endHigh + 1], [LOW_SURROGATE_MIN, endLow + 1]]);
				}

				index += 2;
			}

			// The format of `surrogateMappings` is as follows:
			//
			//     [ surrogateMapping1, surrogateMapping2 ]
			//
			// i.e.:
			//
			//     [
			//       [ highSurrogates1, lowSurrogates1 ],
			//       [ highSurrogates2, lowSurrogates2 ]
			//     ]
			return optimizeSurrogateMappings(surrogateMappings);
		};

		var createSurrogateCharacterClasses = function (surrogateMappings) {
			var result = [];
			forEach(surrogateMappings, function (surrogateMapping) {
				var highSurrogates = surrogateMapping[0];
				var lowSurrogates = surrogateMapping[1];
				result.push(createBMPCharacterClasses(highSurrogates) + createBMPCharacterClasses(lowSurrogates));
			});
			return result.join('|');
		};

		var createCharacterClassesFromData = function (data, bmpOnly, hasUnicodeFlag) {
			if (hasUnicodeFlag) {
				return createUnicodeCharacterClasses(data);
			}
			var result = [];

			var parts = splitAtBMP(data);
			var loneHighSurrogates = parts.loneHighSurrogates;
			var loneLowSurrogates = parts.loneLowSurrogates;
			var bmp = parts.bmp;
			var astral = parts.astral;
			var hasLoneHighSurrogates = !dataIsEmpty(loneHighSurrogates);
			var hasLoneLowSurrogates = !dataIsEmpty(loneLowSurrogates);

			var surrogateMappings = surrogateSet(astral);

			if (bmpOnly) {
				bmp = dataAddData(bmp, loneHighSurrogates);
				hasLoneHighSurrogates = false;
				bmp = dataAddData(bmp, loneLowSurrogates);
				hasLoneLowSurrogates = false;
			}

			if (!dataIsEmpty(bmp)) {
				// The data set contains BMP code points that are not high surrogates
				// needed for astral code points in the set.
				result.push(createBMPCharacterClasses(bmp));
			}
			if (surrogateMappings.length) {
				// The data set contains astral code points; append character classes
				// based on their surrogate pairs.
				result.push(createSurrogateCharacterClasses(surrogateMappings));
			}
			// https://gist.github.com/mathiasbynens/bbe7f870208abcfec860
			if (hasLoneHighSurrogates) {
				result.push(createBMPCharacterClasses(loneHighSurrogates) +
				// Make sure the high surrogates aren’t part of a surrogate pair.
				'(?![\\uDC00-\\uDFFF])');
			}
			if (hasLoneLowSurrogates) {
				result.push(
				// It is not possible to accurately assert the low surrogates aren’t
				// part of a surrogate pair, since JavaScript regular expressions do
				// not support lookbehind.
				'(?:[^\\uD800-\\uDBFF]|^)' + createBMPCharacterClasses(loneLowSurrogates));
			}
			return result.join('|');
		};

		/*--------------------------------------------------------------------------*/

		// `regenerate` can be used as a constructor (and new methods can be added to
		// its prototype) but also as a regular function, the latter of which is the
		// documented and most common usage. For that reason, it’s not capitalized.
		var regenerate = function (value) {
			if (arguments.length > 1) {
				value = slice.call(arguments);
			}
			if (this instanceof regenerate) {
				this.data = [];
				return value ? this.add(value) : this;
			}
			return new regenerate().add(value);
		};

		regenerate.version = '1.3.2';

		var proto = regenerate.prototype;
		extend(proto, {
			'add': function (value) {
				var $this = this;
				if (value == null) {
					return $this;
				}
				if (value instanceof regenerate) {
					// Allow passing other Regenerate instances.
					$this.data = dataAddData($this.data, value.data);
					return $this;
				}
				if (arguments.length > 1) {
					value = slice.call(arguments);
				}
				if (isArray(value)) {
					forEach(value, function (item) {
						$this.add(item);
					});
					return $this;
				}
				$this.data = dataAdd($this.data, isNumber(value) ? value : symbolToCodePoint(value));
				return $this;
			},
			'remove': function (value) {
				var $this = this;
				if (value == null) {
					return $this;
				}
				if (value instanceof regenerate) {
					// Allow passing other Regenerate instances.
					$this.data = dataRemoveData($this.data, value.data);
					return $this;
				}
				if (arguments.length > 1) {
					value = slice.call(arguments);
				}
				if (isArray(value)) {
					forEach(value, function (item) {
						$this.remove(item);
					});
					return $this;
				}
				$this.data = dataRemove($this.data, isNumber(value) ? value : symbolToCodePoint(value));
				return $this;
			},
			'addRange': function (start, end) {
				var $this = this;
				$this.data = dataAddRange($this.data, isNumber(start) ? start : symbolToCodePoint(start), isNumber(end) ? end : symbolToCodePoint(end));
				return $this;
			},
			'removeRange': function (start, end) {
				var $this = this;
				var startCodePoint = isNumber(start) ? start : symbolToCodePoint(start);
				var endCodePoint = isNumber(end) ? end : symbolToCodePoint(end);
				$this.data = dataRemoveRange($this.data, startCodePoint, endCodePoint);
				return $this;
			},
			'intersection': function (argument) {
				var $this = this;
				// Allow passing other Regenerate instances.
				// TODO: Optimize this by writing and using `dataIntersectionData()`.
				var array = argument instanceof regenerate ? dataToArray(argument.data) : argument;
				$this.data = dataIntersection($this.data, array);
				return $this;
			},
			'contains': function (codePoint) {
				return dataContains(this.data, isNumber(codePoint) ? codePoint : symbolToCodePoint(codePoint));
			},
			'clone': function () {
				var set = new regenerate();
				set.data = this.data.slice(0);
				return set;
			},
			'toString': function (options) {
				var result = createCharacterClassesFromData(this.data, options ? options.bmpOnly : false, options ? options.hasUnicodeFlag : false);
				if (!result) {
					// For an empty set, return something that can be inserted `/here/` to
					// form a valid regular expression. Avoid `(?:)` since that matches the
					// empty string.
					return '[]';
				}
				// Use `\0` instead of `\x00` where possible.
				return result.replace(regexNull, '\\0$1');
			},
			'toRegExp': function (flags) {
				var pattern = this.toString(flags && flags.indexOf('u') != -1 ? { 'hasUnicodeFlag': true } : null);
				return RegExp(pattern, flags || '');
			},
			'valueOf': function () {
				// Note: `valueOf` is aliased as `toArray`.
				return dataToArray(this.data);
			}
		});

		proto.toArray = proto.valueOf;

		// Some AMD build optimizers, like r.js, check for specific condition patterns
		// like the following:
		if (typeof undefined == 'function' && typeof define.amd == 'object' && define.amd) {
			define(function () {
				return regenerate;
			});
		} else if (freeExports && !freeExports.nodeType) {
			if (freeModule) {
				// in Node.js, io.js, or RingoJS v0.8.0+
				freeModule.exports = regenerate;
			} else {
				// in Narwhal or RingoJS v0.7.0-
				freeExports.regenerate = regenerate;
			}
		} else {
			// in Rhino or a web browser
			root.regenerate = regenerate;
		}
	})(exports);
});
$__System.registerDynamic('128', ['127'], true, function ($__require, exports, module) {
	var global = this || self,
	    GLOBAL = global;
	// Generated by `/scripts/character-class-escape-sets.js`. Do not edit.
	var regenerate = $__require('127');

	exports.REGULAR = {
		'd': regenerate().addRange(0x30, 0x39),
		'D': regenerate().addRange(0x0, 0x2F).addRange(0x3A, 0xFFFF),
		's': regenerate(0x20, 0xA0, 0x1680, 0x202F, 0x205F, 0x3000, 0xFEFF).addRange(0x9, 0xD).addRange(0x2000, 0x200A).addRange(0x2028, 0x2029),
		'S': regenerate().addRange(0x0, 0x8).addRange(0xE, 0x1F).addRange(0x21, 0x9F).addRange(0xA1, 0x167F).addRange(0x1681, 0x1FFF).addRange(0x200B, 0x2027).addRange(0x202A, 0x202E).addRange(0x2030, 0x205E).addRange(0x2060, 0x2FFF).addRange(0x3001, 0xFEFE).addRange(0xFF00, 0xFFFF),
		'w': regenerate(0x5F).addRange(0x30, 0x39).addRange(0x41, 0x5A).addRange(0x61, 0x7A),
		'W': regenerate(0x60).addRange(0x0, 0x2F).addRange(0x3A, 0x40).addRange(0x5B, 0x5E).addRange(0x7B, 0xFFFF)
	};

	exports.UNICODE = {
		'd': regenerate().addRange(0x30, 0x39),
		'D': regenerate().addRange(0x0, 0x2F).addRange(0x3A, 0x10FFFF),
		's': regenerate(0x20, 0xA0, 0x1680, 0x202F, 0x205F, 0x3000, 0xFEFF).addRange(0x9, 0xD).addRange(0x2000, 0x200A).addRange(0x2028, 0x2029),
		'S': regenerate().addRange(0x0, 0x8).addRange(0xE, 0x1F).addRange(0x21, 0x9F).addRange(0xA1, 0x167F).addRange(0x1681, 0x1FFF).addRange(0x200B, 0x2027).addRange(0x202A, 0x202E).addRange(0x2030, 0x205E).addRange(0x2060, 0x2FFF).addRange(0x3001, 0xFEFE).addRange(0xFF00, 0x10FFFF),
		'w': regenerate(0x5F).addRange(0x30, 0x39).addRange(0x41, 0x5A).addRange(0x61, 0x7A),
		'W': regenerate(0x60).addRange(0x0, 0x2F).addRange(0x3A, 0x40).addRange(0x5B, 0x5E).addRange(0x7B, 0x10FFFF)
	};

	exports.UNICODE_IGNORE_CASE = {
		'd': regenerate().addRange(0x30, 0x39),
		'D': regenerate().addRange(0x0, 0x2F).addRange(0x3A, 0x10FFFF),
		's': regenerate(0x20, 0xA0, 0x1680, 0x202F, 0x205F, 0x3000, 0xFEFF).addRange(0x9, 0xD).addRange(0x2000, 0x200A).addRange(0x2028, 0x2029),
		'S': regenerate().addRange(0x0, 0x8).addRange(0xE, 0x1F).addRange(0x21, 0x9F).addRange(0xA1, 0x167F).addRange(0x1681, 0x1FFF).addRange(0x200B, 0x2027).addRange(0x202A, 0x202E).addRange(0x2030, 0x205E).addRange(0x2060, 0x2FFF).addRange(0x3001, 0xFEFE).addRange(0xFF00, 0x10FFFF),
		'w': regenerate(0x5F, 0x17F, 0x212A).addRange(0x30, 0x39).addRange(0x41, 0x5A).addRange(0x61, 0x7A),
		'W': regenerate(0x4B, 0x53, 0x60).addRange(0x0, 0x2F).addRange(0x3A, 0x40).addRange(0x5B, 0x5E).addRange(0x7B, 0x10FFFF)
	};
});
$__System.registerDynamic('129', ['124', '125', '127', '126', '128'], true, function ($__require, exports, module) {
	var global = this || self,
	    GLOBAL = global;
	var generate = $__require('124').generate;
	var parse = $__require('125').parse;
	var regenerate = $__require('127');
	var iuMappings = $__require('126');
	var ESCAPE_SETS = $__require('128');

	function getCharacterClassEscapeSet(character) {
		if (unicode) {
			if (ignoreCase) {
				return ESCAPE_SETS.UNICODE_IGNORE_CASE[character];
			}
			return ESCAPE_SETS.UNICODE[character];
		}
		return ESCAPE_SETS.REGULAR[character];
	}

	var object = {};
	var hasOwnProperty = object.hasOwnProperty;
	function has(object, property) {
		return hasOwnProperty.call(object, property);
	}

	// Prepare a Regenerate set containing all code points, used for negative
	// character classes (if any).
	var UNICODE_SET = regenerate().addRange(0x0, 0x10FFFF);
	// Without the `u` flag, the range stops at 0xFFFF.
	// https://mths.be/es6#sec-pattern-semantics
	var BMP_SET = regenerate().addRange(0x0, 0xFFFF);

	// Prepare a Regenerate set containing all code points that are supposed to be
	// matched by `/./u`. https://mths.be/es6#sec-atom
	var DOT_SET_UNICODE = UNICODE_SET.clone() // all Unicode code points
	.remove(
	// minus `LineTerminator`s (https://mths.be/es6#sec-line-terminators):
	0x000A, // Line Feed <LF>
	0x000D, // Carriage Return <CR>
	0x2028, // Line Separator <LS>
	0x2029 // Paragraph Separator <PS>
	);
	// Prepare a Regenerate set containing all code points that are supposed to be
	// matched by `/./` (only BMP code points).
	var DOT_SET = DOT_SET_UNICODE.clone().intersection(BMP_SET);

	// Add a range of code points + any case-folded code points in that range to a
	// set.
	regenerate.prototype.iuAddRange = function (min, max) {
		var $this = this;
		do {
			var folded = caseFold(min);
			if (folded) {
				$this.add(folded);
			}
		} while (++min <= max);
		return $this;
	};

	function assign(target, source) {
		for (var key in source) {
			// Note: `hasOwnProperty` is not needed here.
			target[key] = source[key];
		}
	}

	function update(item, pattern) {
		// TODO: Test if memoizing `pattern` here is worth the effort.
		if (!pattern) {
			return;
		}
		var tree = parse(pattern, '');
		switch (tree.type) {
			case 'characterClass':
			case 'group':
			case 'value':
				// No wrapping needed.
				break;
			default:
				// Wrap the pattern in a non-capturing group.
				tree = wrap(tree, pattern);
		}
		assign(item, tree);
	}

	function wrap(tree, pattern) {
		// Wrap the pattern in a non-capturing group.
		return {
			'type': 'group',
			'behavior': 'ignore',
			'body': [tree],
			'raw': '(?:' + pattern + ')'
		};
	}

	function caseFold(codePoint) {
		return has(iuMappings, codePoint) ? iuMappings[codePoint] : false;
	}

	var ignoreCase = false;
	var unicode = false;
	function processCharacterClass(characterClassItem) {
		var set = regenerate();
		var body = characterClassItem.body.forEach(function (item) {
			switch (item.type) {
				case 'value':
					set.add(item.codePoint);
					if (ignoreCase && unicode) {
						var folded = caseFold(item.codePoint);
						if (folded) {
							set.add(folded);
						}
					}
					break;
				case 'characterClassRange':
					var min = item.min.codePoint;
					var max = item.max.codePoint;
					set.addRange(min, max);
					if (ignoreCase && unicode) {
						set.iuAddRange(min, max);
					}
					break;
				case 'characterClassEscape':
					set.add(getCharacterClassEscapeSet(item.value));
					break;
				// The `default` clause is only here as a safeguard; it should never be
				// reached. Code coverage tools should ignore it.
				/* istanbul ignore next */
				default:
					throw Error('Unknown term type: ' + item.type);
			}
		});
		if (characterClassItem.negative) {
			set = (unicode ? UNICODE_SET : BMP_SET).clone().remove(set);
		}
		update(characterClassItem, set.toString());
		return characterClassItem;
	}

	function processTerm(item) {
		switch (item.type) {
			case 'dot':
				update(item, (unicode ? DOT_SET_UNICODE : DOT_SET).toString());
				break;
			case 'characterClass':
				item = processCharacterClass(item);
				break;
			case 'characterClassEscape':
				update(item, getCharacterClassEscapeSet(item.value).toString());
				break;
			case 'alternative':
			case 'disjunction':
			case 'group':
			case 'quantifier':
				item.body = item.body.map(processTerm);
				break;
			case 'value':
				var codePoint = item.codePoint;
				var set = regenerate(codePoint);
				if (ignoreCase && unicode) {
					var folded = caseFold(codePoint);
					if (folded) {
						set.add(folded);
					}
				}
				update(item, set.toString());
				break;
			case 'anchor':
			case 'empty':
			case 'group':
			case 'reference':
				// Nothing to do here.
				break;
			// The `default` clause is only here as a safeguard; it should never be
			// reached. Code coverage tools should ignore it.
			/* istanbul ignore next */
			default:
				throw Error('Unknown term type: ' + item.type);
		}
		return item;
	};

	module.exports = function (pattern, flags) {
		var tree = parse(pattern, flags);
		ignoreCase = flags ? flags.indexOf('i') > -1 : false;
		unicode = flags ? flags.indexOf('u') > -1 : false;
		assign(tree, processTerm(tree));
		return generate(tree);
	};
});
$__System.registerDynamic("12a", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * This function is like `baseIndexOf` except that it accepts a comparator.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @param {Function} comparator The comparator invoked per element.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOfWith(array, value, fromIndex, comparator) {
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (comparator(array[index], value)) {
        return index;
      }
    }
    return -1;
  }

  module.exports = baseIndexOfWith;
});
$__System.registerDynamic('12b', ['4e', '12c', '12a', '97', 'c1'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var arrayMap = $__require('4e'),
      baseIndexOf = $__require('12c'),
      baseIndexOfWith = $__require('12a'),
      baseUnary = $__require('97'),
      copyArray = $__require('c1');

  /** Used for built-in method references. */
  var arrayProto = Array.prototype;

  /** Built-in value references. */
  var splice = arrayProto.splice;

  /**
   * The base implementation of `_.pullAllBy` without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {Array} values The values to remove.
   * @param {Function} [iteratee] The iteratee invoked per element.
   * @param {Function} [comparator] The comparator invoked per element.
   * @returns {Array} Returns `array`.
   */
  function basePullAll(array, values, iteratee, comparator) {
    var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
        index = -1,
        length = values.length,
        seen = array;

    if (array === values) {
      values = copyArray(values);
    }
    if (iteratee) {
      seen = arrayMap(array, baseUnary(iteratee));
    }
    while (++index < length) {
      var fromIndex = 0,
          value = values[index],
          computed = iteratee ? iteratee(value) : value;

      while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
        if (seen !== array) {
          splice.call(seen, fromIndex, 1);
        }
        splice.call(array, fromIndex, 1);
      }
    }
    return array;
  }

  module.exports = basePullAll;
});
$__System.registerDynamic('12d', ['12b'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var basePullAll = $__require('12b');

  /**
   * This method is like `_.pull` except that it accepts an array of values to remove.
   *
   * **Note:** Unlike `_.difference`, this method mutates `array`.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Array
   * @param {Array} array The array to modify.
   * @param {Array} values The values to remove.
   * @returns {Array} Returns `array`.
   * @example
   *
   * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
   *
   * _.pullAll(array, ['a', 'c']);
   * console.log(array);
   * // => ['b', 'b']
   */
  function pullAll(array, values) {
    return array && array.length && values && values.length ? basePullAll(array, values) : array;
  }

  module.exports = pullAll;
});
$__System.registerDynamic('12e', ['99', '12d'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseRest = $__require('99'),
      pullAll = $__require('12d');

  /**
   * Removes all given values from `array` using
   * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
   * for equality comparisons.
   *
   * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
   * to remove elements from an array by predicate.
   *
   * @static
   * @memberOf _
   * @since 2.0.0
   * @category Array
   * @param {Array} array The array to modify.
   * @param {...*} [values] The values to remove.
   * @returns {Array} Returns `array`.
   * @example
   *
   * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
   *
   * _.pull(array, 'a', 'c');
   * console.log(array);
   * // => ['b', 'b']
   */
  var pull = baseRest(pullAll);

  module.exports = pull;
});
$__System.registerDynamic("123", ["12e", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.is = is;
  exports.pullFlag = pullFlag;

  var _pull = $__require("12e");

  var _pull2 = _interopRequireDefault(_pull);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function is(node, flag) {
    return t.isRegExpLiteral(node) && node.flags.indexOf(flag) >= 0;
  }

  function pullFlag(node, flag) {
    var flags = node.flags.split("");
    if (node.flags.indexOf(flag) < 0) return;
    (0, _pull2.default)(flags, flag);
    node.flags = flags.join("");
  }
});
$__System.registerDynamic("12f", ["129", "123"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return {
      visitor: {
        RegExpLiteral: function RegExpLiteral(_ref) {
          var node = _ref.node;

          if (!regex.is(node, "u")) return;
          node.pattern = (0, _regexpuCore2.default)(node.pattern, node.flags);
          regex.pullFlag(node, "u");
        }
      }
    };
  };

  var _regexpuCore = $__require("129");

  var _regexpuCore2 = _interopRequireDefault(_regexpuCore);

  var _babelHelperRegex = $__require("123");

  var regex = _interopRequireWildcard(_babelHelperRegex);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("130", ["17"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var messages = _ref.messages;

    return {
      visitor: {
        Scope: function Scope(_ref2) {
          var scope = _ref2.scope;

          for (var name in scope.bindings) {
            var binding = scope.bindings[name];
            if (binding.kind !== "const" && binding.kind !== "module") continue;

            for (var _iterator = binding.constantViolations, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
              var _ref3;

              if (_isArray) {
                if (_i >= _iterator.length) break;
                _ref3 = _iterator[_i++];
              } else {
                _i = _iterator.next();
                if (_i.done) break;
                _ref3 = _i.value;
              }

              var violation = _ref3;

              throw violation.buildCodeFrameError(messages.get("readOnly", name));
            }
          }
        }
      }
    };
  };

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("131", ["17"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var t = _ref.types;

    function getSpreadLiteral(spread, scope, state) {
      if (state.opts.loose && !t.isIdentifier(spread.argument, { name: "arguments" })) {
        return spread.argument;
      } else {
        return scope.toArray(spread.argument, true);
      }
    }

    function hasSpread(nodes) {
      for (var i = 0; i < nodes.length; i++) {
        if (t.isSpreadElement(nodes[i])) {
          return true;
        }
      }
      return false;
    }

    function build(props, scope, state) {
      var nodes = [];

      var _props = [];

      function push() {
        if (!_props.length) return;
        nodes.push(t.arrayExpression(_props));
        _props = [];
      }

      for (var _iterator = props, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref2;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref2 = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref2 = _i.value;
        }

        var prop = _ref2;

        if (t.isSpreadElement(prop)) {
          push();
          nodes.push(getSpreadLiteral(prop, scope, state));
        } else {
          _props.push(prop);
        }
      }

      push();

      return nodes;
    }

    return {
      visitor: {
        ArrayExpression: function ArrayExpression(path, state) {
          var node = path.node,
              scope = path.scope;

          var elements = node.elements;
          if (!hasSpread(elements)) return;

          var nodes = build(elements, scope, state);
          var first = nodes.shift();

          if (!t.isArrayExpression(first)) {
            nodes.unshift(first);
            first = t.arrayExpression([]);
          }

          path.replaceWith(t.callExpression(t.memberExpression(first, t.identifier("concat")), nodes));
        },
        CallExpression: function CallExpression(path, state) {
          var node = path.node,
              scope = path.scope;

          var args = node.arguments;
          if (!hasSpread(args)) return;

          var calleePath = path.get("callee");
          if (calleePath.isSuper()) return;

          var contextLiteral = t.identifier("undefined");

          node.arguments = [];

          var nodes = void 0;
          if (args.length === 1 && args[0].argument.name === "arguments") {
            nodes = [args[0].argument];
          } else {
            nodes = build(args, scope, state);
          }

          var first = nodes.shift();
          if (nodes.length) {
            node.arguments.push(t.callExpression(t.memberExpression(first, t.identifier("concat")), nodes));
          } else {
            node.arguments.push(first);
          }

          var callee = node.callee;

          if (calleePath.isMemberExpression()) {
            var temp = scope.maybeGenerateMemoised(callee.object);
            if (temp) {
              callee.object = t.assignmentExpression("=", temp, callee.object);
              contextLiteral = temp;
            } else {
              contextLiteral = callee.object;
            }
            t.appendToMemberExpression(callee, t.identifier("apply"));
          } else {
            node.callee = t.memberExpression(node.callee, t.identifier("apply"));
          }

          if (t.isSuper(contextLiteral)) {
            contextLiteral = t.thisExpression();
          }

          node.arguments.unshift(contextLiteral);
        },
        NewExpression: function NewExpression(path, state) {
          var node = path.node,
              scope = path.scope;

          var args = node.arguments;
          if (!hasSpread(args)) return;

          var nodes = build(args, scope, state);

          var context = t.arrayExpression([t.nullLiteral()]);

          args = t.callExpression(t.memberExpression(context, t.identifier("concat")), nodes);

          path.replaceWith(t.newExpression(t.callExpression(t.memberExpression(t.memberExpression(t.memberExpression(t.identifier("Function"), t.identifier("prototype")), t.identifier("bind")), t.identifier("apply")), [node.callee, args]), []));
        }
      }
    };
  };

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("132", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.visitor = undefined;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  var visitor = exports.visitor = {
    Function: function Function(path) {
      var params = path.get("params");

      var hoistTweak = t.isRestElement(params[params.length - 1]) ? 1 : 0;
      var outputParamsLength = params.length - hoistTweak;

      for (var i = 0; i < outputParamsLength; i++) {
        var param = params[i];
        if (param.isArrayPattern() || param.isObjectPattern()) {
          var uid = path.scope.generateUidIdentifier("ref");

          var declar = t.variableDeclaration("let", [t.variableDeclarator(param.node, uid)]);
          declar._blockHoist = outputParamsLength - i;

          path.ensureBlock();
          path.get("body").unshiftContainer("body", declar);

          param.replaceWith(uid);
        }
      }
    }
  };
});
$__System.registerDynamic("11c", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (node) {
    var params = node.params;
    for (var i = 0; i < params.length; i++) {
      var param = params[i];
      if (t.isAssignmentPattern(param) || t.isRestElement(param)) {
        return i;
      }
    }
    return params.length;
  };

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("e0", ["17", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (path, emit) {
    var kind = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : "var";

    path.traverse(visitor, { kind: kind, emit: emit });
  };

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var visitor = {
    Scope: function Scope(path, state) {
      if (state.kind === "let") path.skip();
    },
    Function: function Function(path) {
      path.skip();
    },
    VariableDeclaration: function VariableDeclaration(path, state) {
      if (state.kind && path.node.kind !== state.kind) return;

      var nodes = [];

      var declarations = path.get("declarations");
      var firstId = void 0;

      for (var _iterator = declarations, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var declar = _ref;

        firstId = declar.node.id;

        if (declar.node.init) {
          nodes.push(t.expressionStatement(t.assignmentExpression("=", declar.node.id, declar.node.init)));
        }

        for (var name in declar.getBindingIdentifiers()) {
          state.emit(t.identifier(name), name);
        }
      }

      if (path.parentPath.isFor({ left: path.node })) {
        path.replaceWith(firstId);
      } else {
        path.replaceWithMultiple(nodes);
      }
    }
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("133", ["e0", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (path) {
    var scope = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : path.scope;
    var node = path.node;

    var container = t.functionExpression(null, [], node.body, node.generator, node.async);

    var callee = container;
    var args = [];

    (0, _babelHelperHoistVariables2.default)(path, function (id) {
      return scope.push({ id: id });
    });

    var state = {
      foundThis: false,
      foundArguments: false
    };

    path.traverse(visitor, state);

    if (state.foundArguments) {
      callee = t.memberExpression(container, t.identifier("apply"));
      args = [];

      if (state.foundThis) {
        args.push(t.thisExpression());
      }

      if (state.foundArguments) {
        if (!state.foundThis) args.push(t.nullLiteral());
        args.push(t.identifier("arguments"));
      }
    }

    var call = t.callExpression(callee, args);
    if (node.generator) call = t.yieldExpression(call, true);

    return t.returnStatement(call);
  };

  var _babelHelperHoistVariables = $__require("e0");

  var _babelHelperHoistVariables2 = _interopRequireDefault(_babelHelperHoistVariables);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var visitor = {
    enter: function enter(path, state) {
      if (path.isThisExpression()) {
        state.foundThis = true;
      }

      if (path.isReferencedIdentifier({ name: "arguments" })) {
        state.foundArguments = true;
      }
    },
    Function: function Function(path) {
      path.skip();
    }
  };

  module.exports = exports["default"];
});
$__System.registerDynamic("134", ["17", "11c", "133", "10", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.visitor = undefined;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _babelHelperGetFunctionArity = $__require("11c");

  var _babelHelperGetFunctionArity2 = _interopRequireDefault(_babelHelperGetFunctionArity);

  var _babelHelperCallDelegate = $__require("133");

  var _babelHelperCallDelegate2 = _interopRequireDefault(_babelHelperCallDelegate);

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var buildDefaultParam = (0, _babelTemplate2.default)("\n  let VARIABLE_NAME =\n    ARGUMENTS.length > ARGUMENT_KEY && ARGUMENTS[ARGUMENT_KEY] !== undefined ?\n      ARGUMENTS[ARGUMENT_KEY]\n    :\n      DEFAULT_VALUE;\n");

  var buildCutOff = (0, _babelTemplate2.default)("\n  let $0 = $1[$2];\n");

  function hasDefaults(node) {
    for (var _iterator = node.params, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var param = _ref;

      if (!t.isIdentifier(param)) return true;
    }
    return false;
  }

  function isSafeBinding(scope, node) {
    if (!scope.hasOwnBinding(node.name)) return true;

    var _scope$getOwnBinding = scope.getOwnBinding(node.name),
        kind = _scope$getOwnBinding.kind;

    return kind === "param" || kind === "local";
  }

  var iifeVisitor = {
    ReferencedIdentifier: function ReferencedIdentifier(path, state) {
      var scope = path.scope,
          node = path.node;

      if (node.name === "eval" || !isSafeBinding(scope, node)) {
        state.iife = true;
        path.stop();
      }
    },
    Scope: function Scope(path) {
      path.skip();
    }
  };

  var visitor = exports.visitor = {
    Function: function Function(path) {
      var node = path.node,
          scope = path.scope;

      if (!hasDefaults(node)) return;

      path.ensureBlock();

      var state = {
        iife: false,
        scope: scope
      };

      var body = [];

      var argsIdentifier = t.identifier("arguments");
      argsIdentifier._shadowedFunctionLiteral = path;

      function pushDefNode(left, right, i) {
        var defNode = buildDefaultParam({
          VARIABLE_NAME: left,
          DEFAULT_VALUE: right,
          ARGUMENT_KEY: t.numericLiteral(i),
          ARGUMENTS: argsIdentifier
        });
        defNode._blockHoist = node.params.length - i;
        body.push(defNode);
      }

      var lastNonDefaultParam = (0, _babelHelperGetFunctionArity2.default)(node);

      var params = path.get("params");
      for (var i = 0; i < params.length; i++) {
        var param = params[i];

        if (!param.isAssignmentPattern()) {
          if (!state.iife && !param.isIdentifier()) {
            param.traverse(iifeVisitor, state);
          }

          continue;
        }

        var left = param.get("left");
        var right = param.get("right");

        if (i >= lastNonDefaultParam || left.isPattern()) {
          var placeholder = scope.generateUidIdentifier("x");
          placeholder._isDefaultPlaceholder = true;
          node.params[i] = placeholder;
        } else {
          node.params[i] = left.node;
        }

        if (!state.iife) {
          if (right.isIdentifier() && !isSafeBinding(scope, right.node)) {
            state.iife = true;
          } else {
            right.traverse(iifeVisitor, state);
          }
        }

        pushDefNode(left.node, right.node, i);
      }

      for (var _i2 = lastNonDefaultParam + 1; _i2 < node.params.length; _i2++) {
        var _param = node.params[_i2];
        if (_param._isDefaultPlaceholder) continue;

        var declar = buildCutOff(_param, argsIdentifier, t.numericLiteral(_i2));
        declar._blockHoist = node.params.length - _i2;
        body.push(declar);
      }

      node.params = node.params.slice(0, lastNonDefaultParam);

      if (state.iife) {
        body.push((0, _babelHelperCallDelegate2.default)(path, scope));
        path.set("body", t.blockStatement(body));
      } else {
        path.get("body").unshiftContainer("body", body);
      }
    }
  };
});
$__System.registerDynamic("135", ["17", "10", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.visitor = undefined;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var buildRest = (0, _babelTemplate2.default)("\n  for (var LEN = ARGUMENTS.length,\n           ARRAY = Array(ARRAY_LEN),\n           KEY = START;\n       KEY < LEN;\n       KEY++) {\n    ARRAY[ARRAY_KEY] = ARGUMENTS[KEY];\n  }\n");

  var restIndex = (0, _babelTemplate2.default)("\n  ARGUMENTS.length <= INDEX ? undefined : ARGUMENTS[INDEX]\n");

  var restIndexImpure = (0, _babelTemplate2.default)("\n  REF = INDEX, ARGUMENTS.length <= REF ? undefined : ARGUMENTS[REF]\n");

  var restLength = (0, _babelTemplate2.default)("\n  ARGUMENTS.length <= OFFSET ? 0 : ARGUMENTS.length - OFFSET\n");

  var memberExpressionOptimisationVisitor = {
    Scope: function Scope(path, state) {
      if (!path.scope.bindingIdentifierEquals(state.name, state.outerBinding)) {
        path.skip();
      }
    },
    Flow: function Flow(path) {
      if (path.isTypeCastExpression()) return;

      path.skip();
    },

    "Function|ClassProperty": function FunctionClassProperty(path, state) {
      var oldNoOptimise = state.noOptimise;
      state.noOptimise = true;
      path.traverse(memberExpressionOptimisationVisitor, state);
      state.noOptimise = oldNoOptimise;

      path.skip();
    },

    ReferencedIdentifier: function ReferencedIdentifier(path, state) {
      var node = path.node;

      if (node.name === "arguments") {
        state.deopted = true;
      }

      if (node.name !== state.name) return;

      if (state.noOptimise) {
        state.deopted = true;
      } else {
        var parentPath = path.parentPath;

        if (parentPath.listKey === "params" && parentPath.key < state.offset) {
          return;
        }

        if (parentPath.isMemberExpression({ object: node })) {
          var grandparentPath = parentPath.parentPath;

          var argsOptEligible = !state.deopted && !(grandparentPath.isAssignmentExpression() && parentPath.node === grandparentPath.node.left || grandparentPath.isLVal() || grandparentPath.isForXStatement() || grandparentPath.isUpdateExpression() || grandparentPath.isUnaryExpression({ operator: "delete" }) || (grandparentPath.isCallExpression() || grandparentPath.isNewExpression()) && parentPath.node === grandparentPath.node.callee);

          if (argsOptEligible) {
            if (parentPath.node.computed) {
              if (parentPath.get("property").isBaseType("number")) {
                state.candidates.push({ cause: "indexGetter", path: path });
                return;
              }
            } else if (parentPath.node.property.name === "length") {
              state.candidates.push({ cause: "lengthGetter", path: path });
              return;
            }
          }
        }

        if (state.offset === 0 && parentPath.isSpreadElement()) {
          var call = parentPath.parentPath;
          if (call.isCallExpression() && call.node.arguments.length === 1) {
            state.candidates.push({ cause: "argSpread", path: path });
            return;
          }
        }

        state.references.push(path);
      }
    },
    BindingIdentifier: function BindingIdentifier(_ref, state) {
      var node = _ref.node;

      if (node.name === state.name) {
        state.deopted = true;
      }
    }
  };
  function hasRest(node) {
    return t.isRestElement(node.params[node.params.length - 1]);
  }

  function optimiseIndexGetter(path, argsId, offset) {
    var index = void 0;

    if (t.isNumericLiteral(path.parent.property)) {
      index = t.numericLiteral(path.parent.property.value + offset);
    } else if (offset === 0) {
      index = path.parent.property;
    } else {
      index = t.binaryExpression("+", path.parent.property, t.numericLiteral(offset));
    }

    var scope = path.scope;

    if (!scope.isPure(index)) {
      var temp = scope.generateUidIdentifierBasedOnNode(index);
      scope.push({ id: temp, kind: "var" });
      path.parentPath.replaceWith(restIndexImpure({
        ARGUMENTS: argsId,
        INDEX: index,
        REF: temp
      }));
    } else {
      path.parentPath.replaceWith(restIndex({
        ARGUMENTS: argsId,
        INDEX: index
      }));
    }
  }

  function optimiseLengthGetter(path, argsId, offset) {
    if (offset) {
      path.parentPath.replaceWith(restLength({
        ARGUMENTS: argsId,
        OFFSET: t.numericLiteral(offset)
      }));
    } else {
      path.replaceWith(argsId);
    }
  }

  var visitor = exports.visitor = {
    Function: function Function(path) {
      var node = path.node,
          scope = path.scope;

      if (!hasRest(node)) return;

      var rest = node.params.pop().argument;

      var argsId = t.identifier("arguments");

      argsId._shadowedFunctionLiteral = path;

      var state = {
        references: [],
        offset: node.params.length,

        argumentsNode: argsId,
        outerBinding: scope.getBindingIdentifier(rest.name),

        candidates: [],

        name: rest.name,

        deopted: false
      };

      path.traverse(memberExpressionOptimisationVisitor, state);

      if (!state.deopted && !state.references.length) {
        for (var _iterator = state.candidates, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
          var _ref3;

          if (_isArray) {
            if (_i >= _iterator.length) break;
            _ref3 = _iterator[_i++];
          } else {
            _i = _iterator.next();
            if (_i.done) break;
            _ref3 = _i.value;
          }

          var _ref4 = _ref3;
          var _path = _ref4.path,
              cause = _ref4.cause;

          switch (cause) {
            case "indexGetter":
              optimiseIndexGetter(_path, argsId, state.offset);
              break;
            case "lengthGetter":
              optimiseLengthGetter(_path, argsId, state.offset);
              break;
            default:
              _path.replaceWith(argsId);
          }
        }
        return;
      }

      state.references = state.references.concat(state.candidates.map(function (_ref5) {
        var path = _ref5.path;
        return path;
      }));

      state.deopted = state.deopted || !!node.shadow;

      var start = t.numericLiteral(node.params.length);
      var key = scope.generateUidIdentifier("key");
      var len = scope.generateUidIdentifier("len");

      var arrKey = key;
      var arrLen = len;
      if (node.params.length) {
        arrKey = t.binaryExpression("-", key, start);

        arrLen = t.conditionalExpression(t.binaryExpression(">", len, start), t.binaryExpression("-", len, start), t.numericLiteral(0));
      }

      var loop = buildRest({
        ARGUMENTS: argsId,
        ARRAY_KEY: arrKey,
        ARRAY_LEN: arrLen,
        START: start,
        ARRAY: rest,
        KEY: key,
        LEN: len
      });

      if (state.deopted) {
        loop._blockHoist = node.params.length + 1;
        node.body.body.unshift(loop);
      } else {
        loop._blockHoist = 1;

        var target = path.getEarliestCommonAncestorFrom(state.references).getStatementParent();

        target.findParent(function (path) {
          if (path.isLoop()) {
            target = path;
          } else {
            return path.isFunction();
          }
        });

        target.insertBefore(loop);
      }
    }
  };
});
$__System.registerDynamic("136", ["17", "d5", "132", "134", "135"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function () {
    return {
      visitor: _babelTraverse.visitors.merge([{
        ArrowFunctionExpression: function ArrowFunctionExpression(path) {
          var params = path.get("params");
          for (var _iterator = params, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
            var _ref;

            if (_isArray) {
              if (_i >= _iterator.length) break;
              _ref = _iterator[_i++];
            } else {
              _i = _iterator.next();
              if (_i.done) break;
              _ref = _i.value;
            }

            var param = _ref;

            if (param.isRestElement() || param.isAssignmentPattern()) {
              path.arrowFunctionToShadowed();
              break;
            }
          }
        }
      }, destructuring.visitor, rest.visitor, def.visitor])
    };
  };

  var _babelTraverse = $__require("d5");

  var _destructuring = $__require("132");

  var destructuring = _interopRequireWildcard(_destructuring);

  var _default = $__require("134");

  var def = _interopRequireWildcard(_default);

  var _rest = $__require("135");

  var rest = _interopRequireWildcard(_rest);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("137", ["1f", "17"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (_ref) {
    var t = _ref.types;

    function variableDeclarationHasPattern(node) {
      for (var _iterator = node.declarations, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref2;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref2 = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref2 = _i.value;
        }

        var declar = _ref2;

        if (t.isPattern(declar.id)) {
          return true;
        }
      }
      return false;
    }

    function hasRest(pattern) {
      for (var _iterator2 = pattern.elements, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref3;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref3 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref3 = _i2.value;
        }

        var elem = _ref3;

        if (t.isRestElement(elem)) {
          return true;
        }
      }
      return false;
    }

    var arrayUnpackVisitor = {
      ReferencedIdentifier: function ReferencedIdentifier(path, state) {
        if (state.bindings[path.node.name]) {
          state.deopt = true;
          path.stop();
        }
      }
    };

    var DestructuringTransformer = function () {
      function DestructuringTransformer(opts) {
        (0, _classCallCheck3.default)(this, DestructuringTransformer);

        this.blockHoist = opts.blockHoist;
        this.operator = opts.operator;
        this.arrays = {};
        this.nodes = opts.nodes || [];
        this.scope = opts.scope;
        this.file = opts.file;
        this.kind = opts.kind;
      }

      DestructuringTransformer.prototype.buildVariableAssignment = function buildVariableAssignment(id, init) {
        var op = this.operator;
        if (t.isMemberExpression(id)) op = "=";

        var node = void 0;

        if (op) {
          node = t.expressionStatement(t.assignmentExpression(op, id, init));
        } else {
          node = t.variableDeclaration(this.kind, [t.variableDeclarator(id, init)]);
        }

        node._blockHoist = this.blockHoist;

        return node;
      };

      DestructuringTransformer.prototype.buildVariableDeclaration = function buildVariableDeclaration(id, init) {
        var declar = t.variableDeclaration("var", [t.variableDeclarator(id, init)]);
        declar._blockHoist = this.blockHoist;
        return declar;
      };

      DestructuringTransformer.prototype.push = function push(id, init) {
        if (t.isObjectPattern(id)) {
          this.pushObjectPattern(id, init);
        } else if (t.isArrayPattern(id)) {
          this.pushArrayPattern(id, init);
        } else if (t.isAssignmentPattern(id)) {
          this.pushAssignmentPattern(id, init);
        } else {
          this.nodes.push(this.buildVariableAssignment(id, init));
        }
      };

      DestructuringTransformer.prototype.toArray = function toArray(node, count) {
        if (this.file.opts.loose || t.isIdentifier(node) && this.arrays[node.name]) {
          return node;
        } else {
          return this.scope.toArray(node, count);
        }
      };

      DestructuringTransformer.prototype.pushAssignmentPattern = function pushAssignmentPattern(pattern, valueRef) {

        var tempValueRef = this.scope.generateUidIdentifierBasedOnNode(valueRef);

        var declar = t.variableDeclaration("var", [t.variableDeclarator(tempValueRef, valueRef)]);
        declar._blockHoist = this.blockHoist;
        this.nodes.push(declar);

        var tempConditional = t.conditionalExpression(t.binaryExpression("===", tempValueRef, t.identifier("undefined")), pattern.right, tempValueRef);

        var left = pattern.left;
        if (t.isPattern(left)) {
          var tempValueDefault = t.expressionStatement(t.assignmentExpression("=", tempValueRef, tempConditional));
          tempValueDefault._blockHoist = this.blockHoist;

          this.nodes.push(tempValueDefault);
          this.push(left, tempValueRef);
        } else {
          this.nodes.push(this.buildVariableAssignment(left, tempConditional));
        }
      };

      DestructuringTransformer.prototype.pushObjectRest = function pushObjectRest(pattern, objRef, spreadProp, spreadPropIndex) {

        var keys = [];

        for (var i = 0; i < pattern.properties.length; i++) {
          var prop = pattern.properties[i];

          if (i >= spreadPropIndex) break;

          if (t.isRestProperty(prop)) continue;

          var key = prop.key;
          if (t.isIdentifier(key) && !prop.computed) key = t.stringLiteral(prop.key.name);
          keys.push(key);
        }

        keys = t.arrayExpression(keys);

        var value = t.callExpression(this.file.addHelper("objectWithoutProperties"), [objRef, keys]);
        this.nodes.push(this.buildVariableAssignment(spreadProp.argument, value));
      };

      DestructuringTransformer.prototype.pushObjectProperty = function pushObjectProperty(prop, propRef) {
        if (t.isLiteral(prop.key)) prop.computed = true;

        var pattern = prop.value;
        var objRef = t.memberExpression(propRef, prop.key, prop.computed);

        if (t.isPattern(pattern)) {
          this.push(pattern, objRef);
        } else {
          this.nodes.push(this.buildVariableAssignment(pattern, objRef));
        }
      };

      DestructuringTransformer.prototype.pushObjectPattern = function pushObjectPattern(pattern, objRef) {

        if (!pattern.properties.length) {
          this.nodes.push(t.expressionStatement(t.callExpression(this.file.addHelper("objectDestructuringEmpty"), [objRef])));
        }

        if (pattern.properties.length > 1 && !this.scope.isStatic(objRef)) {
          var temp = this.scope.generateUidIdentifierBasedOnNode(objRef);
          this.nodes.push(this.buildVariableDeclaration(temp, objRef));
          objRef = temp;
        }

        for (var i = 0; i < pattern.properties.length; i++) {
          var prop = pattern.properties[i];
          if (t.isRestProperty(prop)) {
            this.pushObjectRest(pattern, objRef, prop, i);
          } else {
            this.pushObjectProperty(prop, objRef);
          }
        }
      };

      DestructuringTransformer.prototype.canUnpackArrayPattern = function canUnpackArrayPattern(pattern, arr) {
        if (!t.isArrayExpression(arr)) return false;

        if (pattern.elements.length > arr.elements.length) return;
        if (pattern.elements.length < arr.elements.length && !hasRest(pattern)) return false;

        for (var _iterator3 = pattern.elements, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
          var _ref4;

          if (_isArray3) {
            if (_i3 >= _iterator3.length) break;
            _ref4 = _iterator3[_i3++];
          } else {
            _i3 = _iterator3.next();
            if (_i3.done) break;
            _ref4 = _i3.value;
          }

          var elem = _ref4;

          if (!elem) return false;

          if (t.isMemberExpression(elem)) return false;
        }

        for (var _iterator4 = arr.elements, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
          var _ref5;

          if (_isArray4) {
            if (_i4 >= _iterator4.length) break;
            _ref5 = _iterator4[_i4++];
          } else {
            _i4 = _iterator4.next();
            if (_i4.done) break;
            _ref5 = _i4.value;
          }

          var _elem = _ref5;

          if (t.isSpreadElement(_elem)) return false;

          if (t.isCallExpression(_elem)) return false;

          if (t.isMemberExpression(_elem)) return false;
        }

        var bindings = t.getBindingIdentifiers(pattern);
        var state = { deopt: false, bindings: bindings };
        this.scope.traverse(arr, arrayUnpackVisitor, state);
        return !state.deopt;
      };

      DestructuringTransformer.prototype.pushUnpackedArrayPattern = function pushUnpackedArrayPattern(pattern, arr) {
        for (var i = 0; i < pattern.elements.length; i++) {
          var elem = pattern.elements[i];
          if (t.isRestElement(elem)) {
            this.push(elem.argument, t.arrayExpression(arr.elements.slice(i)));
          } else {
            this.push(elem, arr.elements[i]);
          }
        }
      };

      DestructuringTransformer.prototype.pushArrayPattern = function pushArrayPattern(pattern, arrayRef) {
        if (!pattern.elements) return;

        if (this.canUnpackArrayPattern(pattern, arrayRef)) {
          return this.pushUnpackedArrayPattern(pattern, arrayRef);
        }

        var count = !hasRest(pattern) && pattern.elements.length;

        var toArray = this.toArray(arrayRef, count);

        if (t.isIdentifier(toArray)) {
          arrayRef = toArray;
        } else {
          arrayRef = this.scope.generateUidIdentifierBasedOnNode(arrayRef);
          this.arrays[arrayRef.name] = true;
          this.nodes.push(this.buildVariableDeclaration(arrayRef, toArray));
        }

        for (var i = 0; i < pattern.elements.length; i++) {
          var elem = pattern.elements[i];

          if (!elem) continue;

          var elemRef = void 0;

          if (t.isRestElement(elem)) {
            elemRef = this.toArray(arrayRef);
            elemRef = t.callExpression(t.memberExpression(elemRef, t.identifier("slice")), [t.numericLiteral(i)]);

            elem = elem.argument;
          } else {
            elemRef = t.memberExpression(arrayRef, t.numericLiteral(i), true);
          }

          this.push(elem, elemRef);
        }
      };

      DestructuringTransformer.prototype.init = function init(pattern, ref) {

        if (!t.isArrayExpression(ref) && !t.isMemberExpression(ref)) {
          var memo = this.scope.maybeGenerateMemoised(ref, true);
          if (memo) {
            this.nodes.push(this.buildVariableDeclaration(memo, ref));
            ref = memo;
          }
        }

        this.push(pattern, ref);

        return this.nodes;
      };

      return DestructuringTransformer;
    }();

    return {
      visitor: {
        ExportNamedDeclaration: function ExportNamedDeclaration(path) {
          var declaration = path.get("declaration");
          if (!declaration.isVariableDeclaration()) return;
          if (!variableDeclarationHasPattern(declaration.node)) return;

          var specifiers = [];

          for (var name in path.getOuterBindingIdentifiers(path)) {
            var id = t.identifier(name);
            specifiers.push(t.exportSpecifier(id, id));
          }

          path.replaceWith(declaration.node);
          path.insertAfter(t.exportNamedDeclaration(null, specifiers));
        },
        ForXStatement: function ForXStatement(path, file) {
          var node = path.node,
              scope = path.scope;

          var left = node.left;

          if (t.isPattern(left)) {

            var temp = scope.generateUidIdentifier("ref");

            node.left = t.variableDeclaration("var", [t.variableDeclarator(temp)]);

            path.ensureBlock();

            node.body.body.unshift(t.variableDeclaration("var", [t.variableDeclarator(left, temp)]));

            return;
          }

          if (!t.isVariableDeclaration(left)) return;

          var pattern = left.declarations[0].id;
          if (!t.isPattern(pattern)) return;

          var key = scope.generateUidIdentifier("ref");
          node.left = t.variableDeclaration(left.kind, [t.variableDeclarator(key, null)]);

          var nodes = [];

          var destructuring = new DestructuringTransformer({
            kind: left.kind,
            file: file,
            scope: scope,
            nodes: nodes
          });

          destructuring.init(pattern, key);

          path.ensureBlock();

          var block = node.body;
          block.body = nodes.concat(block.body);
        },
        CatchClause: function CatchClause(_ref6, file) {
          var node = _ref6.node,
              scope = _ref6.scope;

          var pattern = node.param;
          if (!t.isPattern(pattern)) return;

          var ref = scope.generateUidIdentifier("ref");
          node.param = ref;

          var nodes = [];

          var destructuring = new DestructuringTransformer({
            kind: "let",
            file: file,
            scope: scope,
            nodes: nodes
          });
          destructuring.init(pattern, ref);

          node.body.body = nodes.concat(node.body.body);
        },
        AssignmentExpression: function AssignmentExpression(path, file) {
          var node = path.node,
              scope = path.scope;

          if (!t.isPattern(node.left)) return;

          var nodes = [];

          var destructuring = new DestructuringTransformer({
            operator: node.operator,
            file: file,
            scope: scope,
            nodes: nodes
          });

          var ref = void 0;
          if (path.isCompletionRecord() || !path.parentPath.isExpressionStatement()) {
            ref = scope.generateUidIdentifierBasedOnNode(node.right, "ref");

            nodes.push(t.variableDeclaration("var", [t.variableDeclarator(ref, node.right)]));

            if (t.isArrayExpression(node.right)) {
              destructuring.arrays[ref.name] = true;
            }
          }

          destructuring.init(node.left, ref || node.right);

          if (ref) {
            nodes.push(t.expressionStatement(ref));
          }

          path.replaceWithMultiple(nodes);
        },
        VariableDeclaration: function VariableDeclaration(path, file) {
          var node = path.node,
              scope = path.scope,
              parent = path.parent;

          if (t.isForXStatement(parent)) return;
          if (!parent || !path.container) return;
          if (!variableDeclarationHasPattern(node)) return;

          var nodes = [];
          var declar = void 0;

          for (var i = 0; i < node.declarations.length; i++) {
            declar = node.declarations[i];

            var patternId = declar.init;
            var pattern = declar.id;

            var destructuring = new DestructuringTransformer({
              blockHoist: node._blockHoist,
              nodes: nodes,
              scope: scope,
              kind: node.kind,
              file: file
            });

            if (t.isPattern(pattern)) {
              destructuring.init(pattern, patternId);

              if (+i !== node.declarations.length - 1) {
                t.inherits(nodes[nodes.length - 1], declar);
              }
            } else {
              nodes.push(t.inherits(destructuring.buildVariableAssignment(declar.id, declar.init), declar));
            }
          }

          var nodesOut = [];
          for (var _iterator5 = nodes, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
            var _ref7;

            if (_isArray5) {
              if (_i5 >= _iterator5.length) break;
              _ref7 = _iterator5[_i5++];
            } else {
              _i5 = _iterator5.next();
              if (_i5.done) break;
              _ref7 = _i5.value;
            }

            var _node = _ref7;

            var tail = nodesOut[nodesOut.length - 1];
            if (tail && t.isVariableDeclaration(tail) && t.isVariableDeclaration(_node) && tail.kind === _node.kind) {
              var _tail$declarations;

              (_tail$declarations = tail.declarations).push.apply(_tail$declarations, _node.declarations);
            } else {
              nodesOut.push(_node);
            }
          }

          for (var _iterator6 = nodesOut, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : (0, _getIterator3.default)(_iterator6);;) {
            var _ref8;

            if (_isArray6) {
              if (_i6 >= _iterator6.length) break;
              _ref8 = _iterator6[_i6++];
            } else {
              _i6 = _iterator6.next();
              if (_i6.done) break;
              _ref8 = _i6.value;
            }

            var nodeOut = _ref8;

            if (!nodeOut.declarations) continue;
            for (var _iterator7 = nodeOut.declarations, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : (0, _getIterator3.default)(_iterator7);;) {
              var _ref9;

              if (_isArray7) {
                if (_i7 >= _iterator7.length) break;
                _ref9 = _iterator7[_i7++];
              } else {
                _i7 = _iterator7.next();
                if (_i7.done) break;
                _ref9 = _i7.value;
              }

              var declaration = _ref9;
              var name = declaration.id.name;

              if (scope.bindings[name]) {
                scope.bindings[name].kind = nodeOut.kind;
              }
            }
          }

          if (nodesOut.length === 1) {
            path.replaceWith(nodesOut[0]);
          } else {
            path.replaceWithMultiple(nodesOut);
          }
        }
      }
    };
  };

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("138", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.visitor = undefined;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function getTDZStatus(refPath, bindingPath) {
    var executionStatus = bindingPath._guessExecutionStatusRelativeTo(refPath);

    if (executionStatus === "before") {
      return "inside";
    } else if (executionStatus === "after") {
      return "outside";
    } else {
      return "maybe";
    }
  }

  function buildTDZAssert(node, file) {
    return t.callExpression(file.addHelper("temporalRef"), [node, t.stringLiteral(node.name), file.addHelper("temporalUndefined")]);
  }

  function isReference(node, scope, state) {
    var declared = state.letReferences[node.name];
    if (!declared) return false;

    return scope.getBindingIdentifier(node.name) === declared;
  }

  var visitor = exports.visitor = {
    ReferencedIdentifier: function ReferencedIdentifier(path, state) {
      if (!this.file.opts.tdz) return;

      var node = path.node,
          parent = path.parent,
          scope = path.scope;

      if (path.parentPath.isFor({ left: node })) return;
      if (!isReference(node, scope, state)) return;

      var bindingPath = scope.getBinding(node.name).path;

      var status = getTDZStatus(path, bindingPath);
      if (status === "inside") return;

      if (status === "maybe") {
        var assert = buildTDZAssert(node, state.file);

        bindingPath.parent._tdzThis = true;

        path.skip();

        if (path.parentPath.isUpdateExpression()) {
          if (parent._ignoreBlockScopingTDZ) return;
          path.parentPath.replaceWith(t.sequenceExpression([assert, parent]));
        } else {
          path.replaceWith(assert);
        }
      } else if (status === "outside") {
        path.replaceWith(t.throwStatement(t.inherits(t.newExpression(t.identifier("ReferenceError"), [t.stringLiteral(node.name + " is not defined - temporal dead zone")]), node)));
      }
    },

    AssignmentExpression: {
      exit: function exit(path, state) {
        if (!this.file.opts.tdz) return;

        var node = path.node;

        if (node._ignoreBlockScopingTDZ) return;

        var nodes = [];
        var ids = path.getBindingIdentifiers();

        for (var name in ids) {
          var id = ids[name];

          if (isReference(id, path.scope, state)) {
            nodes.push(buildTDZAssert(id, state.file));
          }
        }

        if (nodes.length) {
          node._ignoreBlockScopingTDZ = true;
          nodes.push(node);
          path.replaceWithMultiple(nodes.map(t.expressionStatement));
        }
      }
    }
  };
});
$__System.registerDynamic('139', ['bc', 'c7', 'bd'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var copyObject = $__require('bc'),
      createAssigner = $__require('c7'),
      keysIn = $__require('bd');

  /**
   * This method is like `_.assign` except that it iterates over own and
   * inherited source properties.
   *
   * **Note:** This method mutates `object`.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @alias extend
   * @category Object
   * @param {Object} object The destination object.
   * @param {...Object} [sources] The source objects.
   * @returns {Object} Returns `object`.
   * @see _.assign
   * @example
   *
   * function Foo() {
   *   this.a = 1;
   * }
   *
   * function Bar() {
   *   this.c = 3;
   * }
   *
   * Foo.prototype.b = 2;
   * Bar.prototype.d = 4;
   *
   * _.assignIn({ 'a': 0 }, new Foo, new Bar);
   * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
   */
  var assignIn = createAssigner(function (object, source) {
    copyObject(source, keysIn(source), object);
  });

  module.exports = assignIn;
});
$__System.registerDynamic('13a', ['139'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = $__require('139');
});
$__System.registerDynamic('13b', ['b6'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseClone = $__require('b6');

  /** Used to compose bitmasks for cloning. */
  var CLONE_DEEP_FLAG = 1,
      CLONE_SYMBOLS_FLAG = 4;

  /**
   * This method is like `_.clone` except that it recursively clones `value`.
   *
   * @static
   * @memberOf _
   * @since 1.0.0
   * @category Lang
   * @param {*} value The value to recursively clone.
   * @returns {*} Returns the deep cloned value.
   * @see _.clone
   * @example
   *
   * var objects = [{ 'a': 1 }, { 'b': 2 }];
   *
   * var deep = _.cloneDeep(objects);
   * console.log(deep[0] === objects[0]);
   * // => false
   */
  function cloneDeep(value) {
    return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
  }

  module.exports = cloneDeep;
});
$__System.registerDynamic("13c", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * The base implementation of `_.has` without support for deep paths.
   *
   * @private
   * @param {Object} [object] The object to query.
   * @param {Array|string} key The key to check.
   * @returns {boolean} Returns `true` if `key` exists, else `false`.
   */
  function baseHas(object, key) {
    return object != null && hasOwnProperty.call(object, key);
  }

  module.exports = baseHas;
});
$__System.registerDynamic('87', ['50', '94'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isArray = $__require('50'),
      isSymbol = $__require('94');

  /** Used to match property names within property paths. */
  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
      reIsPlainProp = /^\w*$/;

  /**
   * Checks if `value` is a property name and not a property path.
   *
   * @private
   * @param {*} value The value to check.
   * @param {Object} [object] The object to query keys on.
   * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
   */
  function isKey(value, object) {
    if (isArray(value)) {
      return false;
    }
    var type = typeof value;
    if (type == 'number' || type == 'symbol' || type == 'boolean' || value == null || isSymbol(value)) {
      return true;
    }
    return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || object != null && value in Object(object);
  }

  module.exports = isKey;
});
$__System.registerDynamic('13d', ['13e'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var MapCache = $__require('13e');

  /** Error message constants. */
  var FUNC_ERROR_TEXT = 'Expected a function';

  /**
   * Creates a function that memoizes the result of `func`. If `resolver` is
   * provided, it determines the cache key for storing the result based on the
   * arguments provided to the memoized function. By default, the first argument
   * provided to the memoized function is used as the map cache key. The `func`
   * is invoked with the `this` binding of the memoized function.
   *
   * **Note:** The cache is exposed as the `cache` property on the memoized
   * function. Its creation may be customized by replacing the `_.memoize.Cache`
   * constructor with one whose instances implement the
   * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
   * method interface of `clear`, `delete`, `get`, `has`, and `set`.
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Function
   * @param {Function} func The function to have its output memoized.
   * @param {Function} [resolver] The function to resolve the cache key.
   * @returns {Function} Returns the new memoized function.
   * @example
   *
   * var object = { 'a': 1, 'b': 2 };
   * var other = { 'c': 3, 'd': 4 };
   *
   * var values = _.memoize(_.values);
   * values(object);
   * // => [1, 2]
   *
   * values(other);
   * // => [3, 4]
   *
   * object.a = 2;
   * values(object);
   * // => [1, 2]
   *
   * // Modify the result cache.
   * values.cache.set(object, ['a', 'b']);
   * values(object);
   * // => ['a', 'b']
   *
   * // Replace `_.memoize.Cache`.
   * _.memoize.Cache = WeakMap;
   */
  function memoize(func, resolver) {
    if (typeof func != 'function' || resolver != null && typeof resolver != 'function') {
      throw new TypeError(FUNC_ERROR_TEXT);
    }
    var memoized = function () {
      var args = arguments,
          key = resolver ? resolver.apply(this, args) : args[0],
          cache = memoized.cache;

      if (cache.has(key)) {
        return cache.get(key);
      }
      var result = func.apply(this, args);
      memoized.cache = cache.set(key, result) || cache;
      return result;
    };
    memoized.cache = new (memoize.Cache || MapCache)();
    return memoized;
  }

  // Expose `MapCache`.
  memoize.Cache = MapCache;

  module.exports = memoize;
});
$__System.registerDynamic('13f', ['13d'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var memoize = $__require('13d');

  /** Used as the maximum memoize cache size. */
  var MAX_MEMOIZE_SIZE = 500;

  /**
   * A specialized version of `_.memoize` which clears the memoized function's
   * cache when it exceeds `MAX_MEMOIZE_SIZE`.
   *
   * @private
   * @param {Function} func The function to have its output memoized.
   * @returns {Function} Returns the new memoized function.
   */
  function memoizeCapped(func) {
    var result = memoize(func, function (key) {
      if (cache.size === MAX_MEMOIZE_SIZE) {
        cache.clear();
      }
      return key;
    });

    var cache = result.cache;
    return result;
  }

  module.exports = memoizeCapped;
});
$__System.registerDynamic('140', ['13f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var memoizeCapped = $__require('13f');

  /** Used to match property names within property paths. */
  var reLeadingDot = /^\./,
      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;

  /** Used to match backslashes in property paths. */
  var reEscapeChar = /\\(\\)?/g;

  /**
   * Converts `string` to a property path array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the property path array.
   */
  var stringToPath = memoizeCapped(function (string) {
    var result = [];
    if (reLeadingDot.test(string)) {
      result.push('');
    }
    string.replace(rePropName, function (match, number, quote, string) {
      result.push(quote ? string.replace(reEscapeChar, '$1') : number || match);
    });
    return result;
  });

  module.exports = stringToPath;
});
$__System.registerDynamic('8a', ['50', '87', '140', '9f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isArray = $__require('50'),
      isKey = $__require('87'),
      stringToPath = $__require('140'),
      toString = $__require('9f');

  /**
   * Casts `value` to a path array if it's not one.
   *
   * @private
   * @param {*} value The value to inspect.
   * @param {Object} [object] The object to query keys on.
   * @returns {Array} Returns the cast property path array.
   */
  function castPath(value, object) {
    if (isArray(value)) {
      return value;
    }
    return isKey(value, object) ? [value] : stringToPath(toString(value));
  }

  module.exports = castPath;
});
$__System.registerDynamic('88', ['94'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isSymbol = $__require('94');

  /** Used as references for various `Number` constants. */
  var INFINITY = 1 / 0;

  /**
   * Converts `value` to a string key if it's not a string or symbol.
   *
   * @private
   * @param {*} value The value to inspect.
   * @returns {string|symbol} Returns the key.
   */
  function toKey(value) {
    if (typeof value == 'string' || isSymbol(value)) {
      return value;
    }
    var result = value + '';
    return result == '0' && 1 / value == -INFINITY ? '-0' : result;
  }

  module.exports = toKey;
});
$__System.registerDynamic('84', ['8a', '66', '50', '141', '142', '88'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var castPath = $__require('8a'),
      isArguments = $__require('66'),
      isArray = $__require('50'),
      isIndex = $__require('141'),
      isLength = $__require('142'),
      toKey = $__require('88');

  /**
   * Checks if `path` exists on `object`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array|string} path The path to check.
   * @param {Function} hasFunc The function to check properties.
   * @returns {boolean} Returns `true` if `path` exists, else `false`.
   */
  function hasPath(object, path, hasFunc) {
    path = castPath(path, object);

    var index = -1,
        length = path.length,
        result = false;

    while (++index < length) {
      var key = toKey(path[index]);
      if (!(result = object != null && hasFunc(object, key))) {
        break;
      }
      object = object[key];
    }
    if (result || ++index != length) {
      return result;
    }
    length = object == null ? 0 : object.length;
    return !!length && isLength(length) && isIndex(key, length) && (isArray(object) || isArguments(object));
  }

  module.exports = hasPath;
});
$__System.registerDynamic('119', ['13c', '84'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseHas = $__require('13c'),
      hasPath = $__require('84');

  /**
   * Checks if `path` is a direct property of `object`.
   *
   * @static
   * @since 0.1.0
   * @memberOf _
   * @category Object
   * @param {Object} object The object to query.
   * @param {Array|string} path The path to check.
   * @returns {boolean} Returns `true` if `path` exists, else `false`.
   * @example
   *
   * var object = { 'a': { 'b': 2 } };
   * var other = _.create({ 'a': _.create({ 'b': 2 }) });
   *
   * _.has(object, 'a');
   * // => true
   *
   * _.has(object, 'a.b');
   * // => true
   *
   * _.has(object, ['a', 'b']);
   * // => true
   *
   * _.has(other, 'a');
   * // => false
   */
  function has(object, path) {
    return object != null && hasPath(object, path, baseHas);
  }

  module.exports = has;
});
$__System.registerDynamic("143", ["1f", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var Hub = function Hub(file, options) {
    (0, _classCallCheck3.default)(this, Hub);

    this.file = file;
    this.options = options;
  };

  exports.default = Hub;
  module.exports = exports["default"];
});
$__System.registerDynamic('144', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Helpers.
   */

  var s = 1000;
  var m = s * 60;
  var h = m * 60;
  var d = h * 24;
  var y = d * 365.25;

  /**
   * Parse or format the given `val`.
   *
   * Options:
   *
   *  - `long` verbose formatting [false]
   *
   * @param {String|Number} val
   * @param {Object} [options]
   * @throws {Error} throw an error if val is not a non-empty string or a number
   * @return {String|Number}
   * @api public
   */

  module.exports = function (val, options) {
    options = options || {};
    var type = typeof val;
    if (type === 'string' && val.length > 0) {
      return parse(val);
    } else if (type === 'number' && isNaN(val) === false) {
      return options.long ? fmtLong(val) : fmtShort(val);
    }
    throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val));
  };

  /**
   * Parse the given `str` and return milliseconds.
   *
   * @param {String} str
   * @return {Number}
   * @api private
   */

  function parse(str) {
    str = String(str);
    if (str.length > 100) {
      return;
    }
    var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(str);
    if (!match) {
      return;
    }
    var n = parseFloat(match[1]);
    var type = (match[2] || 'ms').toLowerCase();
    switch (type) {
      case 'years':
      case 'year':
      case 'yrs':
      case 'yr':
      case 'y':
        return n * y;
      case 'days':
      case 'day':
      case 'd':
        return n * d;
      case 'hours':
      case 'hour':
      case 'hrs':
      case 'hr':
      case 'h':
        return n * h;
      case 'minutes':
      case 'minute':
      case 'mins':
      case 'min':
      case 'm':
        return n * m;
      case 'seconds':
      case 'second':
      case 'secs':
      case 'sec':
      case 's':
        return n * s;
      case 'milliseconds':
      case 'millisecond':
      case 'msecs':
      case 'msec':
      case 'ms':
        return n;
      default:
        return undefined;
    }
  }

  /**
   * Short format for `ms`.
   *
   * @param {Number} ms
   * @return {String}
   * @api private
   */

  function fmtShort(ms) {
    if (ms >= d) {
      return Math.round(ms / d) + 'd';
    }
    if (ms >= h) {
      return Math.round(ms / h) + 'h';
    }
    if (ms >= m) {
      return Math.round(ms / m) + 'm';
    }
    if (ms >= s) {
      return Math.round(ms / s) + 's';
    }
    return ms + 'ms';
  }

  /**
   * Long format for `ms`.
   *
   * @param {Number} ms
   * @return {String}
   * @api private
   */

  function fmtLong(ms) {
    return plural(ms, d, 'day') || plural(ms, h, 'hour') || plural(ms, m, 'minute') || plural(ms, s, 'second') || ms + ' ms';
  }

  /**
   * Pluralization helper.
   */

  function plural(ms, n, name) {
    if (ms < n) {
      return;
    }
    if (ms < n * 1.5) {
      return Math.floor(ms / n) + ' ' + name;
    }
    return Math.ceil(ms / n) + ' ' + name + 's';
  }
});
$__System.registerDynamic('145', ['144'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;

  /**
   * This is the common logic for both the Node.js and web browser
   * implementations of `debug()`.
   *
   * Expose `debug()` as the module.
   */

  exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
  exports.coerce = coerce;
  exports.disable = disable;
  exports.enable = enable;
  exports.enabled = enabled;
  exports.humanize = $__require('144');

  /**
   * The currently active debug mode names, and names to skip.
   */

  exports.names = [];
  exports.skips = [];

  /**
   * Map of special "%n" handling functions, for the debug "format" argument.
   *
   * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
   */

  exports.formatters = {};

  /**
   * Previous log timestamp.
   */

  var prevTime;

  /**
   * Select a color.
   * @param {String} namespace
   * @return {Number}
   * @api private
   */

  function selectColor(namespace) {
    var hash = 0,
        i;

    for (i in namespace) {
      hash = (hash << 5) - hash + namespace.charCodeAt(i);
      hash |= 0; // Convert to 32bit integer
    }

    return exports.colors[Math.abs(hash) % exports.colors.length];
  }

  /**
   * Create a debugger with the given `namespace`.
   *
   * @param {String} namespace
   * @return {Function}
   * @api public
   */

  function createDebug(namespace) {

    function debug() {
      // disabled?
      if (!debug.enabled) return;

      var self = debug;

      // set `diff` timestamp
      var curr = +new Date();
      var ms = curr - (prevTime || curr);
      self.diff = ms;
      self.prev = prevTime;
      self.curr = curr;
      prevTime = curr;

      // turn the `arguments` into a proper Array
      var args = new Array(arguments.length);
      for (var i = 0; i < args.length; i++) {
        args[i] = arguments[i];
      }

      args[0] = exports.coerce(args[0]);

      if ('string' !== typeof args[0]) {
        // anything else let's inspect with %O
        args.unshift('%O');
      }

      // apply any `formatters` transformations
      var index = 0;
      args[0] = args[0].replace(/%([a-zA-Z%])/g, function (match, format) {
        // if we encounter an escaped % then don't increase the array index
        if (match === '%%') return match;
        index++;
        var formatter = exports.formatters[format];
        if ('function' === typeof formatter) {
          var val = args[index];
          match = formatter.call(self, val);

          // now we need to remove `args[index]` since it's inlined in the `format`
          args.splice(index, 1);
          index--;
        }
        return match;
      });

      // apply env-specific formatting (colors, etc.)
      exports.formatArgs.call(self, args);

      var logFn = debug.log || exports.log || console.log.bind(console);
      logFn.apply(self, args);
    }

    debug.namespace = namespace;
    debug.enabled = exports.enabled(namespace);
    debug.useColors = exports.useColors();
    debug.color = selectColor(namespace);

    // env-specific initialization logic for debug instances
    if ('function' === typeof exports.init) {
      exports.init(debug);
    }

    return debug;
  }

  /**
   * Enables a debug mode by namespaces. This can include modes
   * separated by a colon and wildcards.
   *
   * @param {String} namespaces
   * @api public
   */

  function enable(namespaces) {
    exports.save(namespaces);

    exports.names = [];
    exports.skips = [];

    var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
    var len = split.length;

    for (var i = 0; i < len; i++) {
      if (!split[i]) continue; // ignore empty strings
      namespaces = split[i].replace(/\*/g, '.*?');
      if (namespaces[0] === '-') {
        exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
      } else {
        exports.names.push(new RegExp('^' + namespaces + '$'));
      }
    }
  }

  /**
   * Disable debug output.
   *
   * @api public
   */

  function disable() {
    exports.enable('');
  }

  /**
   * Returns true if the given mode name is enabled, false otherwise.
   *
   * @param {String} name
   * @return {Boolean}
   * @api public
   */

  function enabled(name) {
    var i, len;
    for (i = 0, len = exports.skips.length; i < len; i++) {
      if (exports.skips[i].test(name)) {
        return false;
      }
    }
    for (i = 0, len = exports.names.length; i < len; i++) {
      if (exports.names[i].test(name)) {
        return true;
      }
    }
    return false;
  }

  /**
   * Coerce `val`.
   *
   * @param {Mixed} val
   * @return {Mixed}
   * @api private
   */

  function coerce(val) {
    if (val instanceof Error) return val.stack || val.message;
    return val;
  }
});
$__System.registerDynamic('63', ['145'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * This is the web browser implementation of `debug()`.
   *
   * Expose `debug()` as the module.
   */

  exports = module.exports = $__require('145');
  exports.log = log;
  exports.formatArgs = formatArgs;
  exports.save = save;
  exports.load = load;
  exports.useColors = useColors;
  exports.storage = 'undefined' != typeof chrome && 'undefined' != typeof chrome.storage ? chrome.storage.local : localstorage();

  /**
   * Colors.
   */

  exports.colors = ['lightseagreen', 'forestgreen', 'goldenrod', 'dodgerblue', 'darkorchid', 'crimson'];

  /**
   * Currently only WebKit-based Web Inspectors, Firefox >= v31,
   * and the Firebug extension (any Firefox version) are known
   * to support "%c" CSS customizations.
   *
   * TODO: add a `localStorage` variable to explicitly enable/disable colors
   */

  function useColors() {
    // NB: In an Electron preload script, document will be defined but not fully
    // initialized. Since we know we're in Chrome, we'll just detect this case
    // explicitly
    if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
      return true;
    }

    // is webkit? http://stackoverflow.com/a/16459606/376773
    // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
    return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance ||
    // is firebug? http://stackoverflow.com/a/398120/376773
    typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) ||
    // is firefox >= v31?
    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
    typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 ||
    // double check webkit in userAgent just in case we are in a worker
    typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
  }

  /**
   * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
   */

  exports.formatters.j = function (v) {
    try {
      return JSON.stringify(v);
    } catch (err) {
      return '[UnexpectedJSONParseError]: ' + err.message;
    }
  };

  /**
   * Colorize log arguments if enabled.
   *
   * @api public
   */

  function formatArgs(args) {
    var useColors = this.useColors;

    args[0] = (useColors ? '%c' : '') + this.namespace + (useColors ? ' %c' : ' ') + args[0] + (useColors ? '%c ' : ' ') + '+' + exports.humanize(this.diff);

    if (!useColors) return;

    var c = 'color: ' + this.color;
    args.splice(1, 0, c, 'color: inherit');

    // the final "%c" is somewhat tricky, because there could be other
    // arguments passed either before or after the %c, so we need to
    // figure out the correct index to insert the CSS into
    var index = 0;
    var lastC = 0;
    args[0].replace(/%[a-zA-Z%]/g, function (match) {
      if ('%%' === match) return;
      index++;
      if ('%c' === match) {
        // we only are interested in the *last* %c
        // (the user may have provided their own)
        lastC = index;
      }
    });

    args.splice(lastC, 0, c);
  }

  /**
   * Invokes `console.log()` when available.
   * No-op when `console.log` is not a "function".
   *
   * @api public
   */

  function log() {
    // this hackery is required for IE8/9, where
    // the `console.log` function doesn't have 'apply'
    return 'object' === typeof console && console.log && Function.prototype.apply.call(console.log, console, arguments);
  }

  /**
   * Save `namespaces`.
   *
   * @param {String} namespaces
   * @api private
   */

  function save(namespaces) {
    try {
      if (null == namespaces) {
        exports.storage.removeItem('debug');
      } else {
        exports.storage.debug = namespaces;
      }
    } catch (e) {}
  }

  /**
   * Load `namespaces`.
   *
   * @return {String} returns the previously persisted debug modes
   * @api private
   */

  function load() {
    var r;
    try {
      r = exports.storage.debug;
    } catch (e) {}

    // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
    if (!r && typeof process !== 'undefined' && 'env' in process) {
      r = process.env.DEBUG;
    }

    return r;
  }

  /**
   * Enable namespaces listed in `localStorage.debug` initially.
   */

  exports.enable(load());

  /**
   * Localstorage attempts to return the localstorage.
   *
   * This is necessary because safari throws
   * when a user disables cookies/localstorage
   * and you attempt to access it.
   *
   * @return {LocalStorage}
   * @api private
   */

  function localstorage() {
    try {
      return window.localStorage;
    } catch (e) {}
  }
});
$__System.registerDynamic('146', ['c'], true, function ($__require, exports, module) {
  /**
   * Copyright 2013-2015, Facebook, Inc.
   * All rights reserved.
   *
   * This source code is licensed under the BSD-style license found in the
   * LICENSE file in the root directory of this source tree. An additional grant
   * of patent rights can be found in the PATENTS file in the same directory.
   */

  'use strict';

  /**
   * Use invariant() to assert state which your program assumes to be true.
   *
   * Provide sprintf-style format (only %s is supported) and arguments
   * to provide information about what broke and what you were
   * expecting.
   *
   * The invariant message will be stripped in production, but the invariant
   * will remain to ensure logic does not differ in production.
   */

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var invariant = function (condition, format, a, b, c, d, e, f) {
    if ('production' !== 'production') {
      if (format === undefined) {
        throw new Error('invariant requires an error message argument');
      }
    }

    if (!condition) {
      var error;
      if (format === undefined) {
        error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');
      } else {
        var args = [a, b, c, d, e, f];
        var argIndex = 0;
        error = new Error(format.replace(/%s/g, function () {
          return args[argIndex++];
        }));
        error.name = 'Invariant Violation';
      }

      error.framesToPop = 1; // we don't care about invariant's own frame
      throw error;
    }
  };

  module.exports = invariant;
});
$__System.registerDynamic('d6', ['147', 'bc', 'c7', '41', '148', '42'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var assignValue = $__require('147'),
      copyObject = $__require('bc'),
      createAssigner = $__require('c7'),
      isArrayLike = $__require('41'),
      isPrototype = $__require('148'),
      keys = $__require('42');

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Assigns own enumerable string keyed properties of source objects to the
   * destination object. Source objects are applied from left to right.
   * Subsequent sources overwrite property assignments of previous sources.
   *
   * **Note:** This method mutates `object` and is loosely based on
   * [`Object.assign`](https://mdn.io/Object/assign).
   *
   * @static
   * @memberOf _
   * @since 0.10.0
   * @category Object
   * @param {Object} object The destination object.
   * @param {...Object} [sources] The source objects.
   * @returns {Object} Returns `object`.
   * @see _.assignIn
   * @example
   *
   * function Foo() {
   *   this.a = 1;
   * }
   *
   * function Bar() {
   *   this.c = 3;
   * }
   *
   * Foo.prototype.b = 2;
   * Bar.prototype.d = 4;
   *
   * _.assign({ 'a': 0 }, new Foo, new Bar);
   * // => { 'a': 1, 'c': 3 }
   */
  var assign = createAssigner(function (object, source) {
    if (isPrototype(source) || isArrayLike(source)) {
      copyObject(source, keys(source), object);
      return;
    }
    for (var key in source) {
      if (hasOwnProperty.call(source, key)) {
        assignValue(object, key, source[key]);
      }
    }
  });

  module.exports = assign;
});
$__System.registerDynamic('149', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used as references for various `Number` constants. */
  var MAX_SAFE_INTEGER = 9007199254740991;

  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeFloor = Math.floor;

  /**
   * The base implementation of `_.repeat` which doesn't coerce arguments.
   *
   * @private
   * @param {string} string The string to repeat.
   * @param {number} n The number of times to repeat the string.
   * @returns {string} Returns the repeated string.
   */
  function baseRepeat(string, n) {
    var result = '';
    if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
      return result;
    }
    // Leverage the exponentiation by squaring algorithm for a faster repeat.
    // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
    do {
      if (n % 2) {
        result += string;
      }
      n = nativeFloor(n / 2);
      if (n) {
        string += string;
      }
    } while (n);

    return result;
  }

  module.exports = baseRepeat;
});
$__System.registerDynamic('a2', ['65', '4e', '50', '94'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Symbol = $__require('65'),
      arrayMap = $__require('4e'),
      isArray = $__require('50'),
      isSymbol = $__require('94');

  /** Used as references for various `Number` constants. */
  var INFINITY = 1 / 0;

  /** Used to convert symbols to primitives and strings. */
  var symbolProto = Symbol ? Symbol.prototype : undefined,
      symbolToString = symbolProto ? symbolProto.toString : undefined;

  /**
   * The base implementation of `_.toString` which doesn't convert nullish
   * values to empty strings.
   *
   * @private
   * @param {*} value The value to process.
   * @returns {string} Returns the string.
   */
  function baseToString(value) {
    // Exit early for strings to avoid a performance hit in some environments.
    if (typeof value == 'string') {
      return value;
    }
    if (isArray(value)) {
      // Recursively convert values (susceptible to call stack limits).
      return arrayMap(value, baseToString) + '';
    }
    if (isSymbol(value)) {
      return symbolToString ? symbolToString.call(value) : '';
    }
    var result = value + '';
    return result == '0' && 1 / value == -INFINITY ? '-0' : result;
  }

  module.exports = baseToString;
});
$__System.registerDynamic('9f', ['a2'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseToString = $__require('a2');

  /**
   * Converts `value` to a string. An empty string is returned for `null`
   * and `undefined` values. The sign of `-0` is preserved.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to convert.
   * @returns {string} Returns the converted string.
   * @example
   *
   * _.toString(null);
   * // => ''
   *
   * _.toString(-0);
   * // => '-0'
   *
   * _.toString([1, 2, 3]);
   * // => '1,2,3'
   */
  function toString(value) {
    return value == null ? '' : baseToString(value);
  }

  module.exports = toString;
});
$__System.registerDynamic('61', ['149', '9a', '3e', '9f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseRepeat = $__require('149'),
      isIterateeCall = $__require('9a'),
      toInteger = $__require('3e'),
      toString = $__require('9f');

  /**
   * Repeats the given string `n` times.
   *
   * @static
   * @memberOf _
   * @since 3.0.0
   * @category String
   * @param {string} [string=''] The string to repeat.
   * @param {number} [n=1] The number of times to repeat the string.
   * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
   * @returns {string} Returns the repeated string.
   * @example
   *
   * _.repeat('*', 3);
   * // => '***'
   *
   * _.repeat('abc', 2);
   * // => 'abcabc'
   *
   * _.repeat('abc', 0);
   * // => ''
   */
  function repeat(string, n, guard) {
    if (guard ? isIterateeCall(string, n, guard) : n === undefined) {
      n = 1;
    } else {
      n = toInteger(n);
    }
    return baseRepeat(toString(string), n);
  }

  module.exports = repeat;
});
$__System.registerDynamic("14a", ["1f", "14b", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _binding = $__require("14b");

  var _binding2 = _interopRequireDefault(_binding);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var renameVisitor = {
    ReferencedIdentifier: function ReferencedIdentifier(_ref, state) {
      var node = _ref.node;

      if (node.name === state.oldName) {
        node.name = state.newName;
      }
    },
    Scope: function Scope(path, state) {
      if (!path.scope.bindingIdentifierEquals(state.oldName, state.binding.identifier)) {
        path.skip();
      }
    },
    "AssignmentExpression|Declaration": function AssignmentExpressionDeclaration(path, state) {
      var ids = path.getOuterBindingIdentifiers();

      for (var name in ids) {
        if (name === state.oldName) ids[name].name = state.newName;
      }
    }
  };

  var Renamer = function () {
    function Renamer(binding, oldName, newName) {
      (0, _classCallCheck3.default)(this, Renamer);

      this.newName = newName;
      this.oldName = oldName;
      this.binding = binding;
    }

    Renamer.prototype.maybeConvertFromExportDeclaration = function maybeConvertFromExportDeclaration(parentDeclar) {
      var exportDeclar = parentDeclar.parentPath.isExportDeclaration() && parentDeclar.parentPath;
      if (!exportDeclar) return;

      var isDefault = exportDeclar.isExportDefaultDeclaration();

      if (isDefault && (parentDeclar.isFunctionDeclaration() || parentDeclar.isClassDeclaration()) && !parentDeclar.node.id) {
        parentDeclar.node.id = parentDeclar.scope.generateUidIdentifier("default");
      }

      var bindingIdentifiers = parentDeclar.getOuterBindingIdentifiers();
      var specifiers = [];

      for (var name in bindingIdentifiers) {
        var localName = name === this.oldName ? this.newName : name;
        var exportedName = isDefault ? "default" : name;
        specifiers.push(t.exportSpecifier(t.identifier(localName), t.identifier(exportedName)));
      }

      if (specifiers.length) {
        var aliasDeclar = t.exportNamedDeclaration(null, specifiers);

        if (parentDeclar.isFunctionDeclaration()) {
          aliasDeclar._blockHoist = 3;
        }

        exportDeclar.insertAfter(aliasDeclar);
        exportDeclar.replaceWith(parentDeclar.node);
      }
    };

    Renamer.prototype.maybeConvertFromClassFunctionDeclaration = function maybeConvertFromClassFunctionDeclaration(path) {
      return;

      if (!path.isFunctionDeclaration() && !path.isClassDeclaration()) return;
      if (this.binding.kind !== "hoisted") return;

      path.node.id = t.identifier(this.oldName);
      path.node._blockHoist = 3;

      path.replaceWith(t.variableDeclaration("let", [t.variableDeclarator(t.identifier(this.newName), t.toExpression(path.node))]));
    };

    Renamer.prototype.maybeConvertFromClassFunctionExpression = function maybeConvertFromClassFunctionExpression(path) {
      return;

      if (!path.isFunctionExpression() && !path.isClassExpression()) return;
      if (this.binding.kind !== "local") return;

      path.node.id = t.identifier(this.oldName);

      this.binding.scope.parent.push({
        id: t.identifier(this.newName)
      });

      path.replaceWith(t.assignmentExpression("=", t.identifier(this.newName), path.node));
    };

    Renamer.prototype.rename = function rename(block) {
      var binding = this.binding,
          oldName = this.oldName,
          newName = this.newName;
      var scope = binding.scope,
          path = binding.path;

      var parentDeclar = path.find(function (path) {
        return path.isDeclaration() || path.isFunctionExpression();
      });
      if (parentDeclar) {
        this.maybeConvertFromExportDeclaration(parentDeclar);
      }

      scope.traverse(block || scope.block, renameVisitor, this);

      if (!block) {
        scope.removeOwnBinding(oldName);
        scope.bindings[newName] = binding;
        this.binding.identifier.name = newName;
      }

      if (binding.type === "hoisted") {}

      if (parentDeclar) {
        this.maybeConvertFromClassFunctionDeclaration(parentDeclar);
        this.maybeConvertFromClassFunctionExpression(parentDeclar);
      }
    };

    return Renamer;
  }();

  exports.default = Renamer;
  module.exports = exports["default"];
});
$__System.registerDynamic('9a', ['76', '41', '141', '85'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var eq = $__require('76'),
      isArrayLike = $__require('41'),
      isIndex = $__require('141'),
      isObject = $__require('85');

  /**
   * Checks if the given arguments are from an iteratee call.
   *
   * @private
   * @param {*} value The potential iteratee value argument.
   * @param {*} index The potential iteratee index or key argument.
   * @param {*} object The potential iteratee object argument.
   * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
   *  else `false`.
   */
  function isIterateeCall(value, index, object) {
    if (!isObject(object)) {
      return false;
    }
    var type = typeof index;
    if (type == 'number' ? isArrayLike(object) && isIndex(index, object.length) : type == 'string' && index in object) {
      return eq(object[index], value);
    }
    return false;
  }

  module.exports = isIterateeCall;
});
$__System.registerDynamic('c7', ['99', '9a'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseRest = $__require('99'),
      isIterateeCall = $__require('9a');

  /**
   * Creates a function like `_.assign`.
   *
   * @private
   * @param {Function} assigner The function to assign values.
   * @returns {Function} Returns the new assigner function.
   */
  function createAssigner(assigner) {
    return baseRest(function (object, sources) {
      var index = -1,
          length = sources.length,
          customizer = length > 1 ? sources[length - 1] : undefined,
          guard = length > 2 ? sources[2] : undefined;

      customizer = assigner.length > 3 && typeof customizer == 'function' ? (length--, customizer) : undefined;

      if (guard && isIterateeCall(sources[0], sources[1], guard)) {
        customizer = length < 3 ? undefined : customizer;
        length = 1;
      }
      object = Object(object);
      while (++index < length) {
        var source = sources[index];
        if (source) {
          assigner(object, source, index, customizer);
        }
      }
      return object;
    });
  }

  module.exports = createAssigner;
});
$__System.registerDynamic('14c', ['bc', 'c7', 'bd'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var copyObject = $__require('bc'),
      createAssigner = $__require('c7'),
      keysIn = $__require('bd');

  /**
   * This method is like `_.assignIn` except that it accepts `customizer`
   * which is invoked to produce the assigned values. If `customizer` returns
   * `undefined`, assignment is handled by the method instead. The `customizer`
   * is invoked with five arguments: (objValue, srcValue, key, object, source).
   *
   * **Note:** This method mutates `object`.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @alias extendWith
   * @category Object
   * @param {Object} object The destination object.
   * @param {...Object} sources The source objects.
   * @param {Function} [customizer] The function to customize assigned values.
   * @returns {Object} Returns `object`.
   * @see _.assignWith
   * @example
   *
   * function customizer(objValue, srcValue) {
   *   return _.isUndefined(objValue) ? srcValue : objValue;
   * }
   *
   * var defaults = _.partialRight(_.assignInWith, customizer);
   *
   * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
   * // => { 'a': 1, 'b': 2 }
   */
  var assignInWith = createAssigner(function (object, source, srcIndex, customizer) {
    copyObject(source, keysIn(source), object, customizer);
  });

  module.exports = assignInWith;
});
$__System.registerDynamic("14d", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * A faster alternative to `Function#apply`, this function invokes `func`
   * with the `this` binding of `thisArg` and the arguments of `args`.
   *
   * @private
   * @param {Function} func The function to invoke.
   * @param {*} thisArg The `this` binding of `func`.
   * @param {Array} args The arguments to invoke `func` with.
   * @returns {*} Returns the result of `func`.
   */
  function apply(func, thisArg, args) {
    switch (args.length) {
      case 0:
        return func.call(thisArg);
      case 1:
        return func.call(thisArg, args[0]);
      case 2:
        return func.call(thisArg, args[0], args[1]);
      case 3:
        return func.call(thisArg, args[0], args[1], args[2]);
    }
    return func.apply(thisArg, args);
  }

  module.exports = apply;
});
$__System.registerDynamic('14e', ['14d'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var apply = $__require('14d');

  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeMax = Math.max;

  /**
   * A specialized version of `baseRest` which transforms the rest array.
   *
   * @private
   * @param {Function} func The function to apply a rest parameter to.
   * @param {number} [start=func.length-1] The start position of the rest parameter.
   * @param {Function} transform The rest array transform.
   * @returns {Function} Returns the new function.
   */
  function overRest(func, start, transform) {
    start = nativeMax(start === undefined ? func.length - 1 : start, 0);
    return function () {
      var args = arguments,
          index = -1,
          length = nativeMax(args.length - start, 0),
          array = Array(length);

      while (++index < length) {
        array[index] = args[start + index];
      }
      index = -1;
      var otherArgs = Array(start + 1);
      while (++index < start) {
        otherArgs[index] = args[index];
      }
      otherArgs[start] = transform(array);
      return apply(func, this, otherArgs);
    };
  }

  module.exports = overRest;
});
$__System.registerDynamic("14f", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Creates a function that returns `value`.
   *
   * @static
   * @memberOf _
   * @since 2.4.0
   * @category Util
   * @param {*} value The value to return from the new function.
   * @returns {Function} Returns the new constant function.
   * @example
   *
   * var objects = _.times(2, _.constant({ 'a': 1 }));
   *
   * console.log(objects);
   * // => [{ 'a': 1 }, { 'a': 1 }]
   *
   * console.log(objects[0] === objects[1]);
   * // => true
   */
  function constant(value) {
    return function () {
      return value;
    };
  }

  module.exports = constant;
});
$__System.registerDynamic("8d", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * This method returns the first argument it receives.
   *
   * @static
   * @since 0.1.0
   * @memberOf _
   * @category Util
   * @param {*} value Any value.
   * @returns {*} Returns `value`.
   * @example
   *
   * var object = { 'a': 1 };
   *
   * console.log(_.identity(object) === object);
   * // => true
   */
  function identity(value) {
    return value;
  }

  module.exports = identity;
});
$__System.registerDynamic('150', ['14f', '151', '8d'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var constant = $__require('14f'),
      defineProperty = $__require('151'),
      identity = $__require('8d');

  /**
   * The base implementation of `setToString` without support for hot loop shorting.
   *
   * @private
   * @param {Function} func The function to modify.
   * @param {Function} string The `toString` result.
   * @returns {Function} Returns `func`.
   */
  var baseSetToString = !defineProperty ? identity : function (func, string) {
    return defineProperty(func, 'toString', {
      'configurable': true,
      'enumerable': false,
      'value': constant(string),
      'writable': true
    });
  };

  module.exports = baseSetToString;
});
$__System.registerDynamic("152", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used to detect hot functions by number of calls within a span of milliseconds. */
  var HOT_COUNT = 800,
      HOT_SPAN = 16;

  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeNow = Date.now;

  /**
   * Creates a function that'll short out and invoke `identity` instead
   * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
   * milliseconds.
   *
   * @private
   * @param {Function} func The function to restrict.
   * @returns {Function} Returns the new shortable function.
   */
  function shortOut(func) {
    var count = 0,
        lastCalled = 0;

    return function () {
      var stamp = nativeNow(),
          remaining = HOT_SPAN - (stamp - lastCalled);

      lastCalled = stamp;
      if (remaining > 0) {
        if (++count >= HOT_COUNT) {
          return arguments[0];
        }
      } else {
        count = 0;
      }
      return func.apply(undefined, arguments);
    };
  }

  module.exports = shortOut;
});
$__System.registerDynamic('153', ['150', '152'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseSetToString = $__require('150'),
      shortOut = $__require('152');

  /**
   * Sets the `toString` method of `func` to return `string`.
   *
   * @private
   * @param {Function} func The function to modify.
   * @param {Function} string The `toString` result.
   * @returns {Function} Returns `func`.
   */
  var setToString = shortOut(baseSetToString);

  module.exports = setToString;
});
$__System.registerDynamic('99', ['8d', '14e', '153'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var identity = $__require('8d'),
      overRest = $__require('14e'),
      setToString = $__require('153');

  /**
   * The base implementation of `_.rest` which doesn't validate or coerce arguments.
   *
   * @private
   * @param {Function} func The function to apply a rest parameter to.
   * @param {number} [start=func.length-1] The start position of the rest parameter.
   * @returns {Function} Returns the new function.
   */
  function baseRest(func, start) {
    return setToString(overRest(func, start, identity), func + '');
  }

  module.exports = baseRest;
});
$__System.registerDynamic('154', ['76'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var eq = $__require('76');

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Used by `_.defaults` to customize its `_.assignIn` use to assign properties
   * of source objects to the destination object for all destination properties
   * that resolve to `undefined`.
   *
   * @private
   * @param {*} objValue The destination value.
   * @param {*} srcValue The source value.
   * @param {string} key The key of the property to assign.
   * @param {Object} object The parent object of `objValue`.
   * @returns {*} Returns the value to assign.
   */
  function customDefaultsAssignIn(objValue, srcValue, key, object) {
    if (objValue === undefined || eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key)) {
      return srcValue;
    }
    return objValue;
  }

  module.exports = customDefaultsAssignIn;
});
$__System.registerDynamic('db', ['14d', '14c', '99', '154'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var apply = $__require('14d'),
      assignInWith = $__require('14c'),
      baseRest = $__require('99'),
      customDefaultsAssignIn = $__require('154');

  /**
   * Assigns own and inherited enumerable string keyed properties of source
   * objects to the destination object for all destination properties that
   * resolve to `undefined`. Source objects are applied from left to right.
   * Once a property is set, additional values of the same property are ignored.
   *
   * **Note:** This method mutates `object`.
   *
   * @static
   * @since 0.1.0
   * @memberOf _
   * @category Object
   * @param {Object} object The destination object.
   * @param {...Object} [sources] The source objects.
   * @returns {Object} Returns `object`.
   * @see _.defaultsDeep
   * @example
   *
   * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
   * // => { 'a': 1, 'b': 2 }
   */
  var defaults = baseRest(function (args) {
    args.push(undefined, customDefaultsAssignIn);
    return apply(assignInWith, undefined, args);
  });

  module.exports = defaults;
});
$__System.registerDynamic("14b", ["1f", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var Binding = function () {
    function Binding(_ref) {
      var existing = _ref.existing,
          identifier = _ref.identifier,
          scope = _ref.scope,
          path = _ref.path,
          kind = _ref.kind;
      (0, _classCallCheck3.default)(this, Binding);

      this.identifier = identifier;
      this.scope = scope;
      this.path = path;
      this.kind = kind;

      this.constantViolations = [];
      this.constant = true;

      this.referencePaths = [];
      this.referenced = false;
      this.references = 0;

      this.clearValue();

      if (existing) {
        this.constantViolations = [].concat(existing.path, existing.constantViolations, this.constantViolations);
      }
    }

    Binding.prototype.deoptValue = function deoptValue() {
      this.clearValue();
      this.hasDeoptedValue = true;
    };

    Binding.prototype.setValue = function setValue(value) {
      if (this.hasDeoptedValue) return;
      this.hasValue = true;
      this.value = value;
    };

    Binding.prototype.clearValue = function clearValue() {
      this.hasDeoptedValue = false;
      this.hasValue = false;
      this.value = null;
    };

    Binding.prototype.reassign = function reassign(path) {
      this.constant = false;
      if (this.constantViolations.indexOf(path) !== -1) {
        return;
      }
      this.constantViolations.push(path);
    };

    Binding.prototype.reference = function reference(path) {
      if (this.referencePaths.indexOf(path) !== -1) {
        return;
      }
      this.referenced = true;
      this.references++;
      this.referencePaths.push(path);
    };

    Binding.prototype.dereference = function dereference() {
      this.references--;
      this.referenced = !!this.references;
    };

    return Binding;
  }();

  exports.default = Binding;
  module.exports = exports["default"];
});
$__System.registerDynamic("155", [], true, function() {
  return {
    "builtin": {
      "Array": false,
      "ArrayBuffer": false,
      "Boolean": false,
      "constructor": false,
      "DataView": false,
      "Date": false,
      "decodeURI": false,
      "decodeURIComponent": false,
      "encodeURI": false,
      "encodeURIComponent": false,
      "Error": false,
      "escape": false,
      "eval": false,
      "EvalError": false,
      "Float32Array": false,
      "Float64Array": false,
      "Function": false,
      "hasOwnProperty": false,
      "Infinity": false,
      "Int16Array": false,
      "Int32Array": false,
      "Int8Array": false,
      "isFinite": false,
      "isNaN": false,
      "isPrototypeOf": false,
      "JSON": false,
      "Map": false,
      "Math": false,
      "NaN": false,
      "Number": false,
      "Object": false,
      "parseFloat": false,
      "parseInt": false,
      "Promise": false,
      "propertyIsEnumerable": false,
      "Proxy": false,
      "RangeError": false,
      "ReferenceError": false,
      "Reflect": false,
      "RegExp": false,
      "Set": false,
      "String": false,
      "Symbol": false,
      "SyntaxError": false,
      "System": false,
      "toLocaleString": false,
      "toString": false,
      "TypeError": false,
      "Uint16Array": false,
      "Uint32Array": false,
      "Uint8Array": false,
      "Uint8ClampedArray": false,
      "undefined": false,
      "unescape": false,
      "URIError": false,
      "valueOf": false,
      "WeakMap": false,
      "WeakSet": false
    },
    "es5": {
      "Array": false,
      "Boolean": false,
      "constructor": false,
      "Date": false,
      "decodeURI": false,
      "decodeURIComponent": false,
      "encodeURI": false,
      "encodeURIComponent": false,
      "Error": false,
      "escape": false,
      "eval": false,
      "EvalError": false,
      "Function": false,
      "hasOwnProperty": false,
      "Infinity": false,
      "isFinite": false,
      "isNaN": false,
      "isPrototypeOf": false,
      "JSON": false,
      "Math": false,
      "NaN": false,
      "Number": false,
      "Object": false,
      "parseFloat": false,
      "parseInt": false,
      "propertyIsEnumerable": false,
      "RangeError": false,
      "ReferenceError": false,
      "RegExp": false,
      "String": false,
      "SyntaxError": false,
      "toLocaleString": false,
      "toString": false,
      "TypeError": false,
      "undefined": false,
      "unescape": false,
      "URIError": false,
      "valueOf": false
    },
    "es6": {
      "Array": false,
      "ArrayBuffer": false,
      "Boolean": false,
      "constructor": false,
      "DataView": false,
      "Date": false,
      "decodeURI": false,
      "decodeURIComponent": false,
      "encodeURI": false,
      "encodeURIComponent": false,
      "Error": false,
      "escape": false,
      "eval": false,
      "EvalError": false,
      "Float32Array": false,
      "Float64Array": false,
      "Function": false,
      "hasOwnProperty": false,
      "Infinity": false,
      "Int16Array": false,
      "Int32Array": false,
      "Int8Array": false,
      "isFinite": false,
      "isNaN": false,
      "isPrototypeOf": false,
      "JSON": false,
      "Map": false,
      "Math": false,
      "NaN": false,
      "Number": false,
      "Object": false,
      "parseFloat": false,
      "parseInt": false,
      "Promise": false,
      "propertyIsEnumerable": false,
      "Proxy": false,
      "RangeError": false,
      "ReferenceError": false,
      "Reflect": false,
      "RegExp": false,
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      "ok": false,
      "propEqual": false,
      "QUnit": false,
      "raises": false,
      "start": false,
      "stop": false,
      "strictEqual": false,
      "test": false,
      "throws": false
    },
    "phantomjs": {
      "console": true,
      "exports": true,
      "phantom": true,
      "require": true,
      "WebPage": true
    },
    "couch": {
      "emit": false,
      "exports": false,
      "getRow": false,
      "log": false,
      "module": false,
      "provides": false,
      "require": false,
      "respond": false,
      "send": false,
      "start": false,
      "sum": false
    },
    "rhino": {
      "defineClass": false,
      "deserialize": false,
      "gc": false,
      "help": false,
      "importClass": false,
      "importPackage": false,
      "java": false,
      "load": false,
      "loadClass": false,
      "Packages": false,
      "print": false,
      "quit": false,
      "readFile": false,
      "readUrl": false,
      "runCommand": false,
      "seal": false,
      "serialize": false,
      "spawn": false,
      "sync": false,
      "toint32": false,
      "version": false
    },
    "nashorn": {
      "__DIR__": false,
      "__FILE__": false,
      "__LINE__": false,
      "com": false,
      "edu": false,
      "exit": false,
      "Java": false,
      "java": false,
      "javafx": false,
      "JavaImporter": false,
      "javax": false,
      "JSAdapter": false,
      "load": false,
      "loadWithNewGlobal": false,
      "org": false,
      "Packages": false,
      "print": false,
      "quit": false
    },
    "wsh": {
      "ActiveXObject": true,
      "Enumerator": true,
      "GetObject": true,
      "ScriptEngine": true,
      "ScriptEngineBuildVersion": true,
      "ScriptEngineMajorVersion": true,
      "ScriptEngineMinorVersion": true,
      "VBArray": true,
      "WScript": true,
      "WSH": true,
      "XDomainRequest": true
    },
    "jquery": {
      "$": false,
      "jQuery": false
    },
    "yui": {
      "Y": false,
      "YUI": false,
      "YUI_config": false
    },
    "shelljs": {
      "cat": false,
      "cd": false,
      "chmod": false,
      "config": false,
      "cp": false,
      "dirs": false,
      "echo": false,
      "env": false,
      "error": false,
      "exec": false,
      "exit": false,
      "find": false,
      "grep": false,
      "ls": false,
      "ln": false,
      "mkdir": false,
      "mv": false,
      "popd": false,
      "pushd": false,
      "pwd": false,
      "rm": false,
      "sed": false,
      "set": false,
      "target": false,
      "tempdir": false,
      "test": false,
      "touch": false,
      "which": false
    },
    "prototypejs": {
      "$": false,
      "$$": false,
      "$A": false,
      "$break": false,
      "$continue": false,
      "$F": false,
      "$H": false,
      "$R": false,
      "$w": false,
      "Abstract": false,
      "Ajax": false,
      "Autocompleter": false,
      "Builder": false,
      "Class": false,
      "Control": false,
      "Draggable": false,
      "Draggables": false,
      "Droppables": false,
      "Effect": false,
      "Element": false,
      "Enumerable": false,
      "Event": false,
      "Field": false,
      "Form": false,
      "Hash": false,
      "Insertion": false,
      "ObjectRange": false,
      "PeriodicalExecuter": false,
      "Position": false,
      "Prototype": false,
      "Scriptaculous": false,
      "Selector": false,
      "Sortable": false,
      "SortableObserver": false,
      "Sound": false,
      "Template": false,
      "Toggle": false,
      "Try": false
    },
    "meteor": {
      "$": false,
      "_": false,
      "Accounts": false,
      "AccountsClient": false,
      "AccountsServer": false,
      "AccountsCommon": false,
      "App": false,
      "Assets": false,
      "Blaze": false,
      "check": false,
      "Cordova": false,
      "DDP": false,
      "DDPServer": false,
      "DDPRateLimiter": false,
      "Deps": false,
      "EJSON": false,
      "Email": false,
      "HTTP": false,
      "Log": false,
      "Match": false,
      "Meteor": false,
      "Mongo": false,
      "MongoInternals": false,
      "Npm": false,
      "Package": false,
      "Plugin": false,
      "process": false,
      "Random": false,
      "ReactiveDict": false,
      "ReactiveVar": false,
      "Router": false,
      "ServiceConfiguration": false,
      "Session": false,
      "share": false,
      "Spacebars": false,
      "Template": false,
      "Tinytest": false,
      "Tracker": false,
      "UI": false,
      "Utils": false,
      "WebApp": false,
      "WebAppInternals": false
    },
    "mongo": {
      "_isWindows": false,
      "_rand": false,
      "BulkWriteResult": false,
      "cat": false,
      "cd": false,
      "connect": false,
      "db": false,
      "getHostName": false,
      "getMemInfo": false,
      "hostname": false,
      "ISODate": false,
      "listFiles": false,
      "load": false,
      "ls": false,
      "md5sumFile": false,
      "mkdir": false,
      "Mongo": false,
      "NumberInt": false,
      "NumberLong": false,
      "ObjectId": false,
      "PlanCache": false,
      "print": false,
      "printjson": false,
      "pwd": false,
      "quit": false,
      "removeFile": false,
      "rs": false,
      "sh": false,
      "UUID": false,
      "version": false,
      "WriteResult": false
    },
    "applescript": {
      "$": false,
      "Application": false,
      "Automation": false,
      "console": false,
      "delay": false,
      "Library": false,
      "ObjC": false,
      "ObjectSpecifier": false,
      "Path": false,
      "Progress": false,
      "Ref": false
    },
    "serviceworker": {
      "caches": false,
      "Cache": false,
      "CacheStorage": false,
      "Client": false,
      "clients": false,
      "Clients": false,
      "ExtendableEvent": false,
      "ExtendableMessageEvent": false,
      "FetchEvent": false,
      "importScripts": false,
      "registration": false,
      "self": false,
      "ServiceWorker": false,
      "ServiceWorkerContainer": false,
      "ServiceWorkerGlobalScope": false,
      "ServiceWorkerMessageEvent": false,
      "ServiceWorkerRegistration": false,
      "skipWaiting": false,
      "WindowClient": false
    },
    "atomtest": {
      "advanceClock": false,
      "fakeClearInterval": false,
      "fakeClearTimeout": false,
      "fakeSetInterval": false,
      "fakeSetTimeout": false,
      "resetTimeouts": false,
      "waitsForPromise": false
    },
    "embertest": {
      "andThen": false,
      "click": false,
      "currentPath": false,
      "currentRouteName": false,
      "currentURL": false,
      "fillIn": false,
      "find": false,
      "findWithAssert": false,
      "keyEvent": false,
      "pauseTest": false,
      "resumeTest": false,
      "triggerEvent": false,
      "visit": false
    },
    "protractor": {
      "$": false,
      "$$": false,
      "browser": false,
      "By": false,
      "by": false,
      "DartObject": false,
      "element": false,
      "protractor": false
    },
    "shared-node-browser": {
      "clearInterval": false,
      "clearTimeout": false,
      "console": false,
      "setInterval": false,
      "setTimeout": false
    },
    "webextensions": {
      "browser": false,
      "chrome": false,
      "opr": false
    },
    "greasemonkey": {
      "GM_addStyle": false,
      "GM_deleteValue": false,
      "GM_getResourceText": false,
      "GM_getResourceURL": false,
      "GM_getValue": false,
      "GM_info": false,
      "GM_listValues": false,
      "GM_log": false,
      "GM_openInTab": false,
      "GM_registerMenuCommand": false,
      "GM_setClipboard": false,
      "GM_setValue": false,
      "GM_xmlhttpRequest": false,
      "unsafeWindow": false
    }
  };
});

$__System.registerDynamic('156', ['155'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = $__require('155');
});
$__System.registerDynamic("157", ["15", "d9", "d4", "1f", "17", "aa", "61", "14a", "d5", "db", "f", "14b", "156", "11", "158", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _keys = $__require("15");

  var _keys2 = _interopRequireDefault(_keys);

  var _create = $__require("d9");

  var _create2 = _interopRequireDefault(_create);

  var _map = $__require("d4");

  var _map2 = _interopRequireDefault(_map);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _includes = $__require("aa");

  var _includes2 = _interopRequireDefault(_includes);

  var _repeat = $__require("61");

  var _repeat2 = _interopRequireDefault(_repeat);

  var _renamer = $__require("14a");

  var _renamer2 = _interopRequireDefault(_renamer);

  var _index = $__require("d5");

  var _index2 = _interopRequireDefault(_index);

  var _defaults = $__require("db");

  var _defaults2 = _interopRequireDefault(_defaults);

  var _babelMessages = $__require("f");

  var messages = _interopRequireWildcard(_babelMessages);

  var _binding2 = $__require("14b");

  var _binding3 = _interopRequireDefault(_binding2);

  var _globals = $__require("156");

  var _globals2 = _interopRequireDefault(_globals);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _cache = $__require("158");

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var _crawlCallsCount = 0;

  function getCache(path, parentScope, self) {
    var scopes = _cache.scope.get(path.node) || [];

    for (var _iterator = scopes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var scope = _ref;

      if (scope.parent === parentScope && scope.path === path) return scope;
    }

    scopes.push(self);

    if (!_cache.scope.has(path.node)) {
      _cache.scope.set(path.node, scopes);
    }
  }

  function gatherNodeParts(node, parts) {
    if (t.isModuleDeclaration(node)) {
      if (node.source) {
        gatherNodeParts(node.source, parts);
      } else if (node.specifiers && node.specifiers.length) {
        for (var _iterator2 = node.specifiers, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
          var _ref2;

          if (_isArray2) {
            if (_i2 >= _iterator2.length) break;
            _ref2 = _iterator2[_i2++];
          } else {
            _i2 = _iterator2.next();
            if (_i2.done) break;
            _ref2 = _i2.value;
          }

          var specifier = _ref2;

          gatherNodeParts(specifier, parts);
        }
      } else if (node.declaration) {
        gatherNodeParts(node.declaration, parts);
      }
    } else if (t.isModuleSpecifier(node)) {
      gatherNodeParts(node.local, parts);
    } else if (t.isMemberExpression(node)) {
      gatherNodeParts(node.object, parts);
      gatherNodeParts(node.property, parts);
    } else if (t.isIdentifier(node)) {
      parts.push(node.name);
    } else if (t.isLiteral(node)) {
      parts.push(node.value);
    } else if (t.isCallExpression(node)) {
      gatherNodeParts(node.callee, parts);
    } else if (t.isObjectExpression(node) || t.isObjectPattern(node)) {
      for (var _iterator3 = node.properties, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
        var _ref3;

        if (_isArray3) {
          if (_i3 >= _iterator3.length) break;
          _ref3 = _iterator3[_i3++];
        } else {
          _i3 = _iterator3.next();
          if (_i3.done) break;
          _ref3 = _i3.value;
        }

        var prop = _ref3;

        gatherNodeParts(prop.key || prop.argument, parts);
      }
    }
  }

  var collectorVisitor = {
    For: function For(path) {
      for (var _iterator4 = t.FOR_INIT_KEYS, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
        var _ref4;

        if (_isArray4) {
          if (_i4 >= _iterator4.length) break;
          _ref4 = _iterator4[_i4++];
        } else {
          _i4 = _iterator4.next();
          if (_i4.done) break;
          _ref4 = _i4.value;
        }

        var key = _ref4;

        var declar = path.get(key);
        if (declar.isVar()) path.scope.getFunctionParent().registerBinding("var", declar);
      }
    },
    Declaration: function Declaration(path) {
      if (path.isBlockScoped()) return;

      if (path.isExportDeclaration() && path.get("declaration").isDeclaration()) return;

      path.scope.getFunctionParent().registerDeclaration(path);
    },
    ReferencedIdentifier: function ReferencedIdentifier(path, state) {
      state.references.push(path);
    },
    ForXStatement: function ForXStatement(path, state) {
      var left = path.get("left");
      if (left.isPattern() || left.isIdentifier()) {
        state.constantViolations.push(left);
      }
    },

    ExportDeclaration: {
      exit: function exit(path) {
        var node = path.node,
            scope = path.scope;

        var declar = node.declaration;
        if (t.isClassDeclaration(declar) || t.isFunctionDeclaration(declar)) {
          var _id = declar.id;
          if (!_id) return;

          var binding = scope.getBinding(_id.name);
          if (binding) binding.reference(path);
        } else if (t.isVariableDeclaration(declar)) {
          for (var _iterator5 = declar.declarations, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
            var _ref5;

            if (_isArray5) {
              if (_i5 >= _iterator5.length) break;
              _ref5 = _iterator5[_i5++];
            } else {
              _i5 = _iterator5.next();
              if (_i5.done) break;
              _ref5 = _i5.value;
            }

            var decl = _ref5;

            var ids = t.getBindingIdentifiers(decl);
            for (var name in ids) {
              var _binding = scope.getBinding(name);
              if (_binding) _binding.reference(path);
            }
          }
        }
      }
    },

    LabeledStatement: function LabeledStatement(path) {
      path.scope.getProgramParent().addGlobal(path.node);
      path.scope.getBlockParent().registerDeclaration(path);
    },
    AssignmentExpression: function AssignmentExpression(path, state) {
      state.assignments.push(path);
    },
    UpdateExpression: function UpdateExpression(path, state) {
      state.constantViolations.push(path.get("argument"));
    },
    UnaryExpression: function UnaryExpression(path, state) {
      if (path.node.operator === "delete") {
        state.constantViolations.push(path.get("argument"));
      }
    },
    BlockScoped: function BlockScoped(path) {
      var scope = path.scope;
      if (scope.path === path) scope = scope.parent;
      scope.getBlockParent().registerDeclaration(path);
    },
    ClassDeclaration: function ClassDeclaration(path) {
      var id = path.node.id;
      if (!id) return;

      var name = id.name;
      path.scope.bindings[name] = path.scope.getBinding(name);
    },
    Block: function Block(path) {
      var paths = path.get("body");
      for (var _iterator6 = paths, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : (0, _getIterator3.default)(_iterator6);;) {
        var _ref6;

        if (_isArray6) {
          if (_i6 >= _iterator6.length) break;
          _ref6 = _iterator6[_i6++];
        } else {
          _i6 = _iterator6.next();
          if (_i6.done) break;
          _ref6 = _i6.value;
        }

        var bodyPath = _ref6;

        if (bodyPath.isFunctionDeclaration()) {
          path.scope.getBlockParent().registerDeclaration(bodyPath);
        }
      }
    }
  };

  var uid = 0;

  var Scope = function () {
    function Scope(path, parentScope) {
      (0, _classCallCheck3.default)(this, Scope);

      if (parentScope && parentScope.block === path.node) {
        return parentScope;
      }

      var cached = getCache(path, parentScope, this);
      if (cached) return cached;

      this.uid = uid++;
      this.parent = parentScope;
      this.hub = path.hub;

      this.parentBlock = path.parent;
      this.block = path.node;
      this.path = path;

      this.labels = new _map2.default();
    }

    Scope.prototype.traverse = function traverse(node, opts, state) {
      (0, _index2.default)(node, opts, this, state, this.path);
    };

    Scope.prototype.generateDeclaredUidIdentifier = function generateDeclaredUidIdentifier() {
      var name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";

      var id = this.generateUidIdentifier(name);
      this.push({ id: id });
      return id;
    };

    Scope.prototype.generateUidIdentifier = function generateUidIdentifier() {
      var name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";

      return t.identifier(this.generateUid(name));
    };

    Scope.prototype.generateUid = function generateUid() {
      var name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";

      name = t.toIdentifier(name).replace(/^_+/, "").replace(/[0-9]+$/g, "");

      var uid = void 0;
      var i = 0;
      do {
        uid = this._generateUid(name, i);
        i++;
      } while (this.hasLabel(uid) || this.hasBinding(uid) || this.hasGlobal(uid) || this.hasReference(uid));

      var program = this.getProgramParent();
      program.references[uid] = true;
      program.uids[uid] = true;

      return uid;
    };

    Scope.prototype._generateUid = function _generateUid(name, i) {
      var id = name;
      if (i > 1) id += i;
      return "_" + id;
    };

    Scope.prototype.generateUidIdentifierBasedOnNode = function generateUidIdentifierBasedOnNode(parent, defaultName) {
      var node = parent;

      if (t.isAssignmentExpression(parent)) {
        node = parent.left;
      } else if (t.isVariableDeclarator(parent)) {
        node = parent.id;
      } else if (t.isObjectProperty(node) || t.isObjectMethod(node)) {
        node = node.key;
      }

      var parts = [];
      gatherNodeParts(node, parts);

      var id = parts.join("$");
      id = id.replace(/^_/, "") || defaultName || "ref";

      return this.generateUidIdentifier(id.slice(0, 20));
    };

    Scope.prototype.isStatic = function isStatic(node) {
      if (t.isThisExpression(node) || t.isSuper(node)) {
        return true;
      }

      if (t.isIdentifier(node)) {
        var binding = this.getBinding(node.name);
        if (binding) {
          return binding.constant;
        } else {
          return this.hasBinding(node.name);
        }
      }

      return false;
    };

    Scope.prototype.maybeGenerateMemoised = function maybeGenerateMemoised(node, dontPush) {
      if (this.isStatic(node)) {
        return null;
      } else {
        var _id2 = this.generateUidIdentifierBasedOnNode(node);
        if (!dontPush) this.push({ id: _id2 });
        return _id2;
      }
    };

    Scope.prototype.checkBlockScopedCollisions = function checkBlockScopedCollisions(local, kind, name, id) {
      if (kind === "param") return;

      if (kind === "hoisted" && local.kind === "let") return;

      var duplicate = kind === "let" || local.kind === "let" || local.kind === "const" || local.kind === "module" || local.kind === "param" && (kind === "let" || kind === "const");

      if (duplicate) {
        throw this.hub.file.buildCodeFrameError(id, messages.get("scopeDuplicateDeclaration", name), TypeError);
      }
    };

    Scope.prototype.rename = function rename(oldName, newName, block) {
      var binding = this.getBinding(oldName);
      if (binding) {
        newName = newName || this.generateUidIdentifier(oldName).name;
        return new _renamer2.default(binding, oldName, newName).rename(block);
      }
    };

    Scope.prototype._renameFromMap = function _renameFromMap(map, oldName, newName, value) {
      if (map[oldName]) {
        map[newName] = value;
        map[oldName] = null;
      }
    };

    Scope.prototype.dump = function dump() {
      var sep = (0, _repeat2.default)("-", 60);
      console.log(sep);
      var scope = this;
      do {
        console.log("#", scope.block.type);
        for (var name in scope.bindings) {
          var binding = scope.bindings[name];
          console.log(" -", name, {
            constant: binding.constant,
            references: binding.references,
            violations: binding.constantViolations.length,
            kind: binding.kind
          });
        }
      } while (scope = scope.parent);
      console.log(sep);
    };

    Scope.prototype.toArray = function toArray(node, i) {
      var file = this.hub.file;

      if (t.isIdentifier(node)) {
        var binding = this.getBinding(node.name);
        if (binding && binding.constant && binding.path.isGenericType("Array")) return node;
      }

      if (t.isArrayExpression(node)) {
        return node;
      }

      if (t.isIdentifier(node, { name: "arguments" })) {
        return t.callExpression(t.memberExpression(t.memberExpression(t.memberExpression(t.identifier("Array"), t.identifier("prototype")), t.identifier("slice")), t.identifier("call")), [node]);
      }

      var helperName = "toArray";
      var args = [node];
      if (i === true) {
        helperName = "toConsumableArray";
      } else if (i) {
        args.push(t.numericLiteral(i));
        helperName = "slicedToArray";
      }
      return t.callExpression(file.addHelper(helperName), args);
    };

    Scope.prototype.hasLabel = function hasLabel(name) {
      return !!this.getLabel(name);
    };

    Scope.prototype.getLabel = function getLabel(name) {
      return this.labels.get(name);
    };

    Scope.prototype.registerLabel = function registerLabel(path) {
      this.labels.set(path.node.label.name, path);
    };

    Scope.prototype.registerDeclaration = function registerDeclaration(path) {
      if (path.isLabeledStatement()) {
        this.registerLabel(path);
      } else if (path.isFunctionDeclaration()) {
        this.registerBinding("hoisted", path.get("id"), path);
      } else if (path.isVariableDeclaration()) {
        var declarations = path.get("declarations");
        for (var _iterator7 = declarations, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : (0, _getIterator3.default)(_iterator7);;) {
          var _ref7;

          if (_isArray7) {
            if (_i7 >= _iterator7.length) break;
            _ref7 = _iterator7[_i7++];
          } else {
            _i7 = _iterator7.next();
            if (_i7.done) break;
            _ref7 = _i7.value;
          }

          var declar = _ref7;

          this.registerBinding(path.node.kind, declar);
        }
      } else if (path.isClassDeclaration()) {
        this.registerBinding("let", path);
      } else if (path.isImportDeclaration()) {
        var specifiers = path.get("specifiers");
        for (var _iterator8 = specifiers, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : (0, _getIterator3.default)(_iterator8);;) {
          var _ref8;

          if (_isArray8) {
            if (_i8 >= _iterator8.length) break;
            _ref8 = _iterator8[_i8++];
          } else {
            _i8 = _iterator8.next();
            if (_i8.done) break;
            _ref8 = _i8.value;
          }

          var specifier = _ref8;

          this.registerBinding("module", specifier);
        }
      } else if (path.isExportDeclaration()) {
        var _declar = path.get("declaration");
        if (_declar.isClassDeclaration() || _declar.isFunctionDeclaration() || _declar.isVariableDeclaration()) {
          this.registerDeclaration(_declar);
        }
      } else {
        this.registerBinding("unknown", path);
      }
    };

    Scope.prototype.buildUndefinedNode = function buildUndefinedNode() {
      if (this.hasBinding("undefined")) {
        return t.unaryExpression("void", t.numericLiteral(0), true);
      } else {
        return t.identifier("undefined");
      }
    };

    Scope.prototype.registerConstantViolation = function registerConstantViolation(path) {
      var ids = path.getBindingIdentifiers();
      for (var name in ids) {
        var binding = this.getBinding(name);
        if (binding) binding.reassign(path);
      }
    };

    Scope.prototype.registerBinding = function registerBinding(kind, path) {
      var bindingPath = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : path;

      if (!kind) throw new ReferenceError("no `kind`");

      if (path.isVariableDeclaration()) {
        var declarators = path.get("declarations");
        for (var _iterator9 = declarators, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : (0, _getIterator3.default)(_iterator9);;) {
          var _ref9;

          if (_isArray9) {
            if (_i9 >= _iterator9.length) break;
            _ref9 = _iterator9[_i9++];
          } else {
            _i9 = _iterator9.next();
            if (_i9.done) break;
            _ref9 = _i9.value;
          }

          var declar = _ref9;

          this.registerBinding(kind, declar);
        }
        return;
      }

      var parent = this.getProgramParent();
      var ids = path.getBindingIdentifiers(true);

      for (var name in ids) {
        for (var _iterator10 = ids[name], _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : (0, _getIterator3.default)(_iterator10);;) {
          var _ref10;

          if (_isArray10) {
            if (_i10 >= _iterator10.length) break;
            _ref10 = _iterator10[_i10++];
          } else {
            _i10 = _iterator10.next();
            if (_i10.done) break;
            _ref10 = _i10.value;
          }

          var _id3 = _ref10;

          var local = this.getOwnBinding(name);
          if (local) {
            if (local.identifier === _id3) continue;

            this.checkBlockScopedCollisions(local, kind, name, _id3);
          }

          if (local && local.path.isFlow()) local = null;

          parent.references[name] = true;

          this.bindings[name] = new _binding3.default({
            identifier: _id3,
            existing: local,
            scope: this,
            path: bindingPath,
            kind: kind
          });
        }
      }
    };

    Scope.prototype.addGlobal = function addGlobal(node) {
      this.globals[node.name] = node;
    };

    Scope.prototype.hasUid = function hasUid(name) {
      var scope = this;

      do {
        if (scope.uids[name]) return true;
      } while (scope = scope.parent);

      return false;
    };

    Scope.prototype.hasGlobal = function hasGlobal(name) {
      var scope = this;

      do {
        if (scope.globals[name]) return true;
      } while (scope = scope.parent);

      return false;
    };

    Scope.prototype.hasReference = function hasReference(name) {
      var scope = this;

      do {
        if (scope.references[name]) return true;
      } while (scope = scope.parent);

      return false;
    };

    Scope.prototype.isPure = function isPure(node, constantsOnly) {
      if (t.isIdentifier(node)) {
        var binding = this.getBinding(node.name);
        if (!binding) return false;
        if (constantsOnly) return binding.constant;
        return true;
      } else if (t.isClass(node)) {
        if (node.superClass && !this.isPure(node.superClass, constantsOnly)) return false;
        return this.isPure(node.body, constantsOnly);
      } else if (t.isClassBody(node)) {
        for (var _iterator11 = node.body, _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : (0, _getIterator3.default)(_iterator11);;) {
          var _ref11;

          if (_isArray11) {
            if (_i11 >= _iterator11.length) break;
            _ref11 = _iterator11[_i11++];
          } else {
            _i11 = _iterator11.next();
            if (_i11.done) break;
            _ref11 = _i11.value;
          }

          var method = _ref11;

          if (!this.isPure(method, constantsOnly)) return false;
        }
        return true;
      } else if (t.isBinary(node)) {
        return this.isPure(node.left, constantsOnly) && this.isPure(node.right, constantsOnly);
      } else if (t.isArrayExpression(node)) {
        for (var _iterator12 = node.elements, _isArray12 = Array.isArray(_iterator12), _i12 = 0, _iterator12 = _isArray12 ? _iterator12 : (0, _getIterator3.default)(_iterator12);;) {
          var _ref12;

          if (_isArray12) {
            if (_i12 >= _iterator12.length) break;
            _ref12 = _iterator12[_i12++];
          } else {
            _i12 = _iterator12.next();
            if (_i12.done) break;
            _ref12 = _i12.value;
          }

          var elem = _ref12;

          if (!this.isPure(elem, constantsOnly)) return false;
        }
        return true;
      } else if (t.isObjectExpression(node)) {
        for (var _iterator13 = node.properties, _isArray13 = Array.isArray(_iterator13), _i13 = 0, _iterator13 = _isArray13 ? _iterator13 : (0, _getIterator3.default)(_iterator13);;) {
          var _ref13;

          if (_isArray13) {
            if (_i13 >= _iterator13.length) break;
            _ref13 = _iterator13[_i13++];
          } else {
            _i13 = _iterator13.next();
            if (_i13.done) break;
            _ref13 = _i13.value;
          }

          var prop = _ref13;

          if (!this.isPure(prop, constantsOnly)) return false;
        }
        return true;
      } else if (t.isClassMethod(node)) {
        if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
        if (node.kind === "get" || node.kind === "set") return false;
        return true;
      } else if (t.isClassProperty(node) || t.isObjectProperty(node)) {
        if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
        return this.isPure(node.value, constantsOnly);
      } else if (t.isUnaryExpression(node)) {
        return this.isPure(node.argument, constantsOnly);
      } else {
        return t.isPureish(node);
      }
    };

    Scope.prototype.setData = function setData(key, val) {
      return this.data[key] = val;
    };

    Scope.prototype.getData = function getData(key) {
      var scope = this;
      do {
        var data = scope.data[key];
        if (data != null) return data;
      } while (scope = scope.parent);
    };

    Scope.prototype.removeData = function removeData(key) {
      var scope = this;
      do {
        var data = scope.data[key];
        if (data != null) scope.data[key] = null;
      } while (scope = scope.parent);
    };

    Scope.prototype.init = function init() {
      if (!this.references) this.crawl();
    };

    Scope.prototype.crawl = function crawl() {
      _crawlCallsCount++;
      this._crawl();
      _crawlCallsCount--;
    };

    Scope.prototype._crawl = function _crawl() {
      var path = this.path;

      this.references = (0, _create2.default)(null);
      this.bindings = (0, _create2.default)(null);
      this.globals = (0, _create2.default)(null);
      this.uids = (0, _create2.default)(null);
      this.data = (0, _create2.default)(null);

      if (path.isLoop()) {
        for (var _iterator14 = t.FOR_INIT_KEYS, _isArray14 = Array.isArray(_iterator14), _i14 = 0, _iterator14 = _isArray14 ? _iterator14 : (0, _getIterator3.default)(_iterator14);;) {
          var _ref14;

          if (_isArray14) {
            if (_i14 >= _iterator14.length) break;
            _ref14 = _iterator14[_i14++];
          } else {
            _i14 = _iterator14.next();
            if (_i14.done) break;
            _ref14 = _i14.value;
          }

          var key = _ref14;

          var node = path.get(key);
          if (node.isBlockScoped()) this.registerBinding(node.node.kind, node);
        }
      }

      if (path.isFunctionExpression() && path.has("id")) {
        if (!path.get("id").node[t.NOT_LOCAL_BINDING]) {
          this.registerBinding("local", path.get("id"), path);
        }
      }

      if (path.isClassExpression() && path.has("id")) {
        if (!path.get("id").node[t.NOT_LOCAL_BINDING]) {
          this.registerBinding("local", path);
        }
      }

      if (path.isFunction()) {
        var params = path.get("params");
        for (var _iterator15 = params, _isArray15 = Array.isArray(_iterator15), _i15 = 0, _iterator15 = _isArray15 ? _iterator15 : (0, _getIterator3.default)(_iterator15);;) {
          var _ref15;

          if (_isArray15) {
            if (_i15 >= _iterator15.length) break;
            _ref15 = _iterator15[_i15++];
          } else {
            _i15 = _iterator15.next();
            if (_i15.done) break;
            _ref15 = _i15.value;
          }

          var param = _ref15;

          this.registerBinding("param", param);
        }
      }

      if (path.isCatchClause()) {
        this.registerBinding("let", path);
      }

      var parent = this.getProgramParent();
      if (parent.crawling) return;

      var state = {
        references: [],
        constantViolations: [],
        assignments: []
      };

      this.crawling = true;
      path.traverse(collectorVisitor, state);
      this.crawling = false;

      for (var _iterator16 = state.assignments, _isArray16 = Array.isArray(_iterator16), _i16 = 0, _iterator16 = _isArray16 ? _iterator16 : (0, _getIterator3.default)(_iterator16);;) {
        var _ref16;

        if (_isArray16) {
          if (_i16 >= _iterator16.length) break;
          _ref16 = _iterator16[_i16++];
        } else {
          _i16 = _iterator16.next();
          if (_i16.done) break;
          _ref16 = _i16.value;
        }

        var _path = _ref16;

        var ids = _path.getBindingIdentifiers();
        var programParent = void 0;
        for (var name in ids) {
          if (_path.scope.getBinding(name)) continue;

          programParent = programParent || _path.scope.getProgramParent();
          programParent.addGlobal(ids[name]);
        }

        _path.scope.registerConstantViolation(_path);
      }

      for (var _iterator17 = state.references, _isArray17 = Array.isArray(_iterator17), _i17 = 0, _iterator17 = _isArray17 ? _iterator17 : (0, _getIterator3.default)(_iterator17);;) {
        var _ref17;

        if (_isArray17) {
          if (_i17 >= _iterator17.length) break;
          _ref17 = _iterator17[_i17++];
        } else {
          _i17 = _iterator17.next();
          if (_i17.done) break;
          _ref17 = _i17.value;
        }

        var ref = _ref17;

        var binding = ref.scope.getBinding(ref.node.name);
        if (binding) {
          binding.reference(ref);
        } else {
          ref.scope.getProgramParent().addGlobal(ref.node);
        }
      }

      for (var _iterator18 = state.constantViolations, _isArray18 = Array.isArray(_iterator18), _i18 = 0, _iterator18 = _isArray18 ? _iterator18 : (0, _getIterator3.default)(_iterator18);;) {
        var _ref18;

        if (_isArray18) {
          if (_i18 >= _iterator18.length) break;
          _ref18 = _iterator18[_i18++];
        } else {
          _i18 = _iterator18.next();
          if (_i18.done) break;
          _ref18 = _i18.value;
        }

        var _path2 = _ref18;

        _path2.scope.registerConstantViolation(_path2);
      }
    };

    Scope.prototype.push = function push(opts) {
      var path = this.path;

      if (!path.isBlockStatement() && !path.isProgram()) {
        path = this.getBlockParent().path;
      }

      if (path.isSwitchStatement()) {
        path = this.getFunctionParent().path;
      }

      if (path.isLoop() || path.isCatchClause() || path.isFunction()) {
        t.ensureBlock(path.node);
        path = path.get("body");
      }

      var unique = opts.unique;
      var kind = opts.kind || "var";
      var blockHoist = opts._blockHoist == null ? 2 : opts._blockHoist;

      var dataKey = "declaration:" + kind + ":" + blockHoist;
      var declarPath = !unique && path.getData(dataKey);

      if (!declarPath) {
        var declar = t.variableDeclaration(kind, []);
        declar._generated = true;
        declar._blockHoist = blockHoist;

        var _path$unshiftContaine = path.unshiftContainer("body", [declar]);

        declarPath = _path$unshiftContaine[0];

        if (!unique) path.setData(dataKey, declarPath);
      }

      var declarator = t.variableDeclarator(opts.id, opts.init);
      declarPath.node.declarations.push(declarator);
      this.registerBinding(kind, declarPath.get("declarations").pop());
    };

    Scope.prototype.getProgramParent = function getProgramParent() {
      var scope = this;
      do {
        if (scope.path.isProgram()) {
          return scope;
        }
      } while (scope = scope.parent);
      throw new Error("We couldn't find a Function or Program...");
    };

    Scope.prototype.getFunctionParent = function getFunctionParent() {
      var scope = this;
      do {
        if (scope.path.isFunctionParent()) {
          return scope;
        }
      } while (scope = scope.parent);
      throw new Error("We couldn't find a Function or Program...");
    };

    Scope.prototype.getBlockParent = function getBlockParent() {
      var scope = this;
      do {
        if (scope.path.isBlockParent()) {
          return scope;
        }
      } while (scope = scope.parent);
      throw new Error("We couldn't find a BlockStatement, For, Switch, Function, Loop or Program...");
    };

    Scope.prototype.getAllBindings = function getAllBindings() {
      var ids = (0, _create2.default)(null);

      var scope = this;
      do {
        (0, _defaults2.default)(ids, scope.bindings);
        scope = scope.parent;
      } while (scope);

      return ids;
    };

    Scope.prototype.getAllBindingsOfKind = function getAllBindingsOfKind() {
      var ids = (0, _create2.default)(null);

      for (var _iterator19 = arguments, _isArray19 = Array.isArray(_iterator19), _i19 = 0, _iterator19 = _isArray19 ? _iterator19 : (0, _getIterator3.default)(_iterator19);;) {
        var _ref19;

        if (_isArray19) {
          if (_i19 >= _iterator19.length) break;
          _ref19 = _iterator19[_i19++];
        } else {
          _i19 = _iterator19.next();
          if (_i19.done) break;
          _ref19 = _i19.value;
        }

        var kind = _ref19;

        var scope = this;
        do {
          for (var name in scope.bindings) {
            var binding = scope.bindings[name];
            if (binding.kind === kind) ids[name] = binding;
          }
          scope = scope.parent;
        } while (scope);
      }

      return ids;
    };

    Scope.prototype.bindingIdentifierEquals = function bindingIdentifierEquals(name, node) {
      return this.getBindingIdentifier(name) === node;
    };

    Scope.prototype.warnOnFlowBinding = function warnOnFlowBinding(binding) {
      if (_crawlCallsCount === 0 && binding && binding.path.isFlow()) {
        console.warn("\n        You or one of the Babel plugins you are using are using Flow declarations as bindings.\n        Support for this will be removed in version 7. To find out the caller, grep for this\n        message and change it to a `console.trace()`.\n      ");
      }
      return binding;
    };

    Scope.prototype.getBinding = function getBinding(name) {
      var scope = this;

      do {
        var binding = scope.getOwnBinding(name);
        if (binding) return this.warnOnFlowBinding(binding);
      } while (scope = scope.parent);
    };

    Scope.prototype.getOwnBinding = function getOwnBinding(name) {
      return this.warnOnFlowBinding(this.bindings[name]);
    };

    Scope.prototype.getBindingIdentifier = function getBindingIdentifier(name) {
      var info = this.getBinding(name);
      return info && info.identifier;
    };

    Scope.prototype.getOwnBindingIdentifier = function getOwnBindingIdentifier(name) {
      var binding = this.bindings[name];
      return binding && binding.identifier;
    };

    Scope.prototype.hasOwnBinding = function hasOwnBinding(name) {
      return !!this.getOwnBinding(name);
    };

    Scope.prototype.hasBinding = function hasBinding(name, noGlobals) {
      if (!name) return false;
      if (this.hasOwnBinding(name)) return true;
      if (this.parentHasBinding(name, noGlobals)) return true;
      if (this.hasUid(name)) return true;
      if (!noGlobals && (0, _includes2.default)(Scope.globals, name)) return true;
      if (!noGlobals && (0, _includes2.default)(Scope.contextVariables, name)) return true;
      return false;
    };

    Scope.prototype.parentHasBinding = function parentHasBinding(name, noGlobals) {
      return this.parent && this.parent.hasBinding(name, noGlobals);
    };

    Scope.prototype.moveBindingTo = function moveBindingTo(name, scope) {
      var info = this.getBinding(name);
      if (info) {
        info.scope.removeOwnBinding(name);
        info.scope = scope;
        scope.bindings[name] = info;
      }
    };

    Scope.prototype.removeOwnBinding = function removeOwnBinding(name) {
      delete this.bindings[name];
    };

    Scope.prototype.removeBinding = function removeBinding(name) {
      var info = this.getBinding(name);
      if (info) {
        info.scope.removeOwnBinding(name);
      }

      var scope = this;
      do {
        if (scope.uids[name]) {
          scope.uids[name] = false;
        }
      } while (scope = scope.parent);
    };

    return Scope;
  }();

  Scope.globals = (0, _keys2.default)(_globals2.default.builtin);
  Scope.contextVariables = ["arguments", "undefined", "Infinity", "NaN"];
  exports.default = Scope;
  module.exports = exports["default"];
});
$__System.registerDynamic("159", ["17", "11", "15a", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.findParent = findParent;
  exports.find = find;
  exports.getFunctionParent = getFunctionParent;
  exports.getStatementParent = getStatementParent;
  exports.getEarliestCommonAncestorFrom = getEarliestCommonAncestorFrom;
  exports.getDeepestCommonAncestorFrom = getDeepestCommonAncestorFrom;
  exports.getAncestry = getAncestry;
  exports.isAncestor = isAncestor;
  exports.isDescendant = isDescendant;
  exports.inType = inType;
  exports.inShadow = inShadow;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _index = $__require("15a");

  var _index2 = _interopRequireDefault(_index);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function findParent(callback) {
    var path = this;
    while (path = path.parentPath) {
      if (callback(path)) return path;
    }
    return null;
  }

  function find(callback) {
    var path = this;
    do {
      if (callback(path)) return path;
    } while (path = path.parentPath);
    return null;
  }

  function getFunctionParent() {
    return this.findParent(function (path) {
      return path.isFunction() || path.isProgram();
    });
  }

  function getStatementParent() {
    var path = this;
    do {
      if (Array.isArray(path.container)) {
        return path;
      }
    } while (path = path.parentPath);
  }

  function getEarliestCommonAncestorFrom(paths) {
    return this.getDeepestCommonAncestorFrom(paths, function (deepest, i, ancestries) {
      var earliest = void 0;
      var keys = t.VISITOR_KEYS[deepest.type];

      for (var _iterator = ancestries, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var ancestry = _ref;

        var path = ancestry[i + 1];

        if (!earliest) {
          earliest = path;
          continue;
        }

        if (path.listKey && earliest.listKey === path.listKey) {
          if (path.key < earliest.key) {
            earliest = path;
            continue;
          }
        }

        var earliestKeyIndex = keys.indexOf(earliest.parentKey);
        var currentKeyIndex = keys.indexOf(path.parentKey);
        if (earliestKeyIndex > currentKeyIndex) {
          earliest = path;
        }
      }

      return earliest;
    });
  }

  function getDeepestCommonAncestorFrom(paths, filter) {
    var _this = this;

    if (!paths.length) {
      return this;
    }

    if (paths.length === 1) {
      return paths[0];
    }

    var minDepth = Infinity;

    var lastCommonIndex = void 0,
        lastCommon = void 0;

    var ancestries = paths.map(function (path) {
      var ancestry = [];

      do {
        ancestry.unshift(path);
      } while ((path = path.parentPath) && path !== _this);

      if (ancestry.length < minDepth) {
        minDepth = ancestry.length;
      }

      return ancestry;
    });

    var first = ancestries[0];

    depthLoop: for (var i = 0; i < minDepth; i++) {
      var shouldMatch = first[i];

      for (var _iterator2 = ancestries, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var ancestry = _ref2;

        if (ancestry[i] !== shouldMatch) {
          break depthLoop;
        }
      }

      lastCommonIndex = i;
      lastCommon = shouldMatch;
    }

    if (lastCommon) {
      if (filter) {
        return filter(lastCommon, lastCommonIndex, ancestries);
      } else {
        return lastCommon;
      }
    } else {
      throw new Error("Couldn't find intersection");
    }
  }

  function getAncestry() {
    var path = this;
    var paths = [];
    do {
      paths.push(path);
    } while (path = path.parentPath);
    return paths;
  }

  function isAncestor(maybeDescendant) {
    return maybeDescendant.isDescendant(this);
  }

  function isDescendant(maybeAncestor) {
    return !!this.findParent(function (parent) {
      return parent === maybeAncestor;
    });
  }

  function inType() {
    var path = this;
    while (path) {
      for (var _iterator3 = arguments, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
        var _ref3;

        if (_isArray3) {
          if (_i3 >= _iterator3.length) break;
          _ref3 = _iterator3[_i3++];
        } else {
          _i3 = _iterator3.next();
          if (_i3.done) break;
          _ref3 = _i3.value;
        }

        var type = _ref3;

        if (path.node.type === type) return true;
      }
      path = path.parentPath;
    }

    return false;
  }

  function inShadow(key) {
    var parentFn = this.isFunction() ? this : this.findParent(function (p) {
      return p.isFunction();
    });
    if (!parentFn) return;

    if (parentFn.isFunctionExpression() || parentFn.isFunctionDeclaration()) {
      var shadow = parentFn.node.shadow;

      if (shadow && (!key || shadow[key] !== false)) {
        return parentFn;
      }
    } else if (parentFn.isArrowFunctionExpression()) {
      return parentFn;
    }

    return null;
  }
});
$__System.registerDynamic("15b", ["17", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.default = function (node) {
    if (!this.isReferenced()) return;

    var binding = this.scope.getBinding(node.name);
    if (binding) {
      if (binding.identifier.typeAnnotation) {
        return binding.identifier.typeAnnotation;
      } else {
        return getTypeAnnotationBindingConstantViolations(this, node.name);
      }
    }

    if (node.name === "undefined") {
      return t.voidTypeAnnotation();
    } else if (node.name === "NaN" || node.name === "Infinity") {
      return t.numberTypeAnnotation();
    } else if (node.name === "arguments") {}
  };

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function getTypeAnnotationBindingConstantViolations(path, name) {
    var binding = path.scope.getBinding(name);

    var types = [];
    path.typeAnnotation = t.unionTypeAnnotation(types);

    var functionConstantViolations = [];
    var constantViolations = getConstantViolationsBefore(binding, path, functionConstantViolations);

    var testType = getConditionalAnnotation(path, name);
    if (testType) {
      var testConstantViolations = getConstantViolationsBefore(binding, testType.ifStatement);

      constantViolations = constantViolations.filter(function (path) {
        return testConstantViolations.indexOf(path) < 0;
      });

      types.push(testType.typeAnnotation);
    }

    if (constantViolations.length) {
      constantViolations = constantViolations.concat(functionConstantViolations);

      for (var _iterator = constantViolations, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var violation = _ref;

        types.push(violation.getTypeAnnotation());
      }
    }

    if (types.length) {
      return t.createUnionTypeAnnotation(types);
    }
  }

  function getConstantViolationsBefore(binding, path, functions) {
    var violations = binding.constantViolations.slice();
    violations.unshift(binding.path);
    return violations.filter(function (violation) {
      violation = violation.resolve();
      var status = violation._guessExecutionStatusRelativeTo(path);
      if (functions && status === "function") functions.push(violation);
      return status === "before";
    });
  }

  function inferAnnotationFromBinaryExpression(name, path) {
    var operator = path.node.operator;

    var right = path.get("right").resolve();
    var left = path.get("left").resolve();

    var target = void 0;
    if (left.isIdentifier({ name: name })) {
      target = right;
    } else if (right.isIdentifier({ name: name })) {
      target = left;
    }
    if (target) {
      if (operator === "===") {
        return target.getTypeAnnotation();
      } else if (t.BOOLEAN_NUMBER_BINARY_OPERATORS.indexOf(operator) >= 0) {
        return t.numberTypeAnnotation();
      } else {
        return;
      }
    } else {
      if (operator !== "===") return;
    }

    var typeofPath = void 0;
    var typePath = void 0;
    if (left.isUnaryExpression({ operator: "typeof" })) {
      typeofPath = left;
      typePath = right;
    } else if (right.isUnaryExpression({ operator: "typeof" })) {
      typeofPath = right;
      typePath = left;
    }
    if (!typePath && !typeofPath) return;

    typePath = typePath.resolve();
    if (!typePath.isLiteral()) return;

    var typeValue = typePath.node.value;
    if (typeof typeValue !== "string") return;

    if (!typeofPath.get("argument").isIdentifier({ name: name })) return;

    return t.createTypeAnnotationBasedOnTypeof(typePath.node.value);
  }

  function getParentConditionalPath(path) {
    var parentPath = void 0;
    while (parentPath = path.parentPath) {
      if (parentPath.isIfStatement() || parentPath.isConditionalExpression()) {
        if (path.key === "test") {
          return;
        } else {
          return parentPath;
        }
      } else {
        path = parentPath;
      }
    }
  }

  function getConditionalAnnotation(path, name) {
    var ifStatement = getParentConditionalPath(path);
    if (!ifStatement) return;

    var test = ifStatement.get("test");
    var paths = [test];
    var types = [];

    do {
      var _path = paths.shift().resolve();

      if (_path.isLogicalExpression()) {
        paths.push(_path.get("left"));
        paths.push(_path.get("right"));
      }

      if (_path.isBinaryExpression()) {
        var type = inferAnnotationFromBinaryExpression(name, _path);
        if (type) types.push(type);
      }
    } while (paths.length);

    if (types.length) {
      return {
        typeAnnotation: t.createUnionTypeAnnotation(types),
        ifStatement: ifStatement
      };
    } else {
      return getConditionalAnnotation(ifStatement, name);
    }
  }
  module.exports = exports["default"];
});
$__System.registerDynamic("15c", ["15b", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.ClassDeclaration = exports.ClassExpression = exports.FunctionDeclaration = exports.ArrowFunctionExpression = exports.FunctionExpression = exports.Identifier = undefined;

  var _infererReference = $__require("15b");

  Object.defineProperty(exports, "Identifier", {
    enumerable: true,
    get: function get() {
      return _interopRequireDefault(_infererReference).default;
    }
  });
  exports.VariableDeclarator = VariableDeclarator;
  exports.TypeCastExpression = TypeCastExpression;
  exports.NewExpression = NewExpression;
  exports.TemplateLiteral = TemplateLiteral;
  exports.UnaryExpression = UnaryExpression;
  exports.BinaryExpression = BinaryExpression;
  exports.LogicalExpression = LogicalExpression;
  exports.ConditionalExpression = ConditionalExpression;
  exports.SequenceExpression = SequenceExpression;
  exports.AssignmentExpression = AssignmentExpression;
  exports.UpdateExpression = UpdateExpression;
  exports.StringLiteral = StringLiteral;
  exports.NumericLiteral = NumericLiteral;
  exports.BooleanLiteral = BooleanLiteral;
  exports.NullLiteral = NullLiteral;
  exports.RegExpLiteral = RegExpLiteral;
  exports.ObjectExpression = ObjectExpression;
  exports.ArrayExpression = ArrayExpression;
  exports.RestElement = RestElement;
  exports.CallExpression = CallExpression;
  exports.TaggedTemplateExpression = TaggedTemplateExpression;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function VariableDeclarator() {
    var id = this.get("id");

    if (id.isIdentifier()) {
      return this.get("init").getTypeAnnotation();
    } else {
      return;
    }
  }

  function TypeCastExpression(node) {
    return node.typeAnnotation;
  }

  TypeCastExpression.validParent = true;

  function NewExpression(node) {
    if (this.get("callee").isIdentifier()) {
      return t.genericTypeAnnotation(node.callee);
    }
  }

  function TemplateLiteral() {
    return t.stringTypeAnnotation();
  }

  function UnaryExpression(node) {
    var operator = node.operator;

    if (operator === "void") {
      return t.voidTypeAnnotation();
    } else if (t.NUMBER_UNARY_OPERATORS.indexOf(operator) >= 0) {
      return t.numberTypeAnnotation();
    } else if (t.STRING_UNARY_OPERATORS.indexOf(operator) >= 0) {
      return t.stringTypeAnnotation();
    } else if (t.BOOLEAN_UNARY_OPERATORS.indexOf(operator) >= 0) {
      return t.booleanTypeAnnotation();
    }
  }

  function BinaryExpression(node) {
    var operator = node.operator;

    if (t.NUMBER_BINARY_OPERATORS.indexOf(operator) >= 0) {
      return t.numberTypeAnnotation();
    } else if (t.BOOLEAN_BINARY_OPERATORS.indexOf(operator) >= 0) {
      return t.booleanTypeAnnotation();
    } else if (operator === "+") {
      var right = this.get("right");
      var left = this.get("left");

      if (left.isBaseType("number") && right.isBaseType("number")) {
        return t.numberTypeAnnotation();
      } else if (left.isBaseType("string") || right.isBaseType("string")) {
        return t.stringTypeAnnotation();
      }

      return t.unionTypeAnnotation([t.stringTypeAnnotation(), t.numberTypeAnnotation()]);
    }
  }

  function LogicalExpression() {
    return t.createUnionTypeAnnotation([this.get("left").getTypeAnnotation(), this.get("right").getTypeAnnotation()]);
  }

  function ConditionalExpression() {
    return t.createUnionTypeAnnotation([this.get("consequent").getTypeAnnotation(), this.get("alternate").getTypeAnnotation()]);
  }

  function SequenceExpression() {
    return this.get("expressions").pop().getTypeAnnotation();
  }

  function AssignmentExpression() {
    return this.get("right").getTypeAnnotation();
  }

  function UpdateExpression(node) {
    var operator = node.operator;
    if (operator === "++" || operator === "--") {
      return t.numberTypeAnnotation();
    }
  }

  function StringLiteral() {
    return t.stringTypeAnnotation();
  }

  function NumericLiteral() {
    return t.numberTypeAnnotation();
  }

  function BooleanLiteral() {
    return t.booleanTypeAnnotation();
  }

  function NullLiteral() {
    return t.nullLiteralTypeAnnotation();
  }

  function RegExpLiteral() {
    return t.genericTypeAnnotation(t.identifier("RegExp"));
  }

  function ObjectExpression() {
    return t.genericTypeAnnotation(t.identifier("Object"));
  }

  function ArrayExpression() {
    return t.genericTypeAnnotation(t.identifier("Array"));
  }

  function RestElement() {
    return ArrayExpression();
  }

  RestElement.validParent = true;

  function Func() {
    return t.genericTypeAnnotation(t.identifier("Function"));
  }

  exports.FunctionExpression = Func;
  exports.ArrowFunctionExpression = Func;
  exports.FunctionDeclaration = Func;
  exports.ClassExpression = Func;
  exports.ClassDeclaration = Func;
  function CallExpression() {
    return resolveCall(this.get("callee"));
  }

  function TaggedTemplateExpression() {
    return resolveCall(this.get("tag"));
  }

  function resolveCall(callee) {
    callee = callee.resolve();

    if (callee.isFunction()) {
      if (callee.is("async")) {
        if (callee.is("generator")) {
          return t.genericTypeAnnotation(t.identifier("AsyncIterator"));
        } else {
          return t.genericTypeAnnotation(t.identifier("Promise"));
        }
      } else {
        if (callee.node.returnType) {
          return callee.node.returnType;
        } else {}
      }
    }
  }
});
$__System.registerDynamic("15d", ["17", "15c", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.getTypeAnnotation = getTypeAnnotation;
  exports._getTypeAnnotation = _getTypeAnnotation;
  exports.isBaseType = isBaseType;
  exports.couldBeBaseType = couldBeBaseType;
  exports.baseTypeStrictlyMatches = baseTypeStrictlyMatches;
  exports.isGenericType = isGenericType;

  var _inferers = $__require("15c");

  var inferers = _interopRequireWildcard(_inferers);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function getTypeAnnotation() {
    if (this.typeAnnotation) return this.typeAnnotation;

    var type = this._getTypeAnnotation() || t.anyTypeAnnotation();
    if (t.isTypeAnnotation(type)) type = type.typeAnnotation;
    return this.typeAnnotation = type;
  }

  function _getTypeAnnotation() {
    var node = this.node;

    if (!node) {
      if (this.key === "init" && this.parentPath.isVariableDeclarator()) {
        var declar = this.parentPath.parentPath;
        var declarParent = declar.parentPath;

        if (declar.key === "left" && declarParent.isForInStatement()) {
          return t.stringTypeAnnotation();
        }

        if (declar.key === "left" && declarParent.isForOfStatement()) {
          return t.anyTypeAnnotation();
        }

        return t.voidTypeAnnotation();
      } else {
        return;
      }
    }

    if (node.typeAnnotation) {
      return node.typeAnnotation;
    }

    var inferer = inferers[node.type];
    if (inferer) {
      return inferer.call(this, node);
    }

    inferer = inferers[this.parentPath.type];
    if (inferer && inferer.validParent) {
      return this.parentPath.getTypeAnnotation();
    }
  }

  function isBaseType(baseName, soft) {
    return _isBaseType(baseName, this.getTypeAnnotation(), soft);
  }

  function _isBaseType(baseName, type, soft) {
    if (baseName === "string") {
      return t.isStringTypeAnnotation(type);
    } else if (baseName === "number") {
      return t.isNumberTypeAnnotation(type);
    } else if (baseName === "boolean") {
      return t.isBooleanTypeAnnotation(type);
    } else if (baseName === "any") {
      return t.isAnyTypeAnnotation(type);
    } else if (baseName === "mixed") {
      return t.isMixedTypeAnnotation(type);
    } else if (baseName === "empty") {
      return t.isEmptyTypeAnnotation(type);
    } else if (baseName === "void") {
      return t.isVoidTypeAnnotation(type);
    } else {
      if (soft) {
        return false;
      } else {
        throw new Error("Unknown base type " + baseName);
      }
    }
  }

  function couldBeBaseType(name) {
    var type = this.getTypeAnnotation();
    if (t.isAnyTypeAnnotation(type)) return true;

    if (t.isUnionTypeAnnotation(type)) {
      for (var _iterator = type.types, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var type2 = _ref;

        if (t.isAnyTypeAnnotation(type2) || _isBaseType(name, type2, true)) {
          return true;
        }
      }
      return false;
    } else {
      return _isBaseType(name, type, true);
    }
  }

  function baseTypeStrictlyMatches(right) {
    var left = this.getTypeAnnotation();
    right = right.getTypeAnnotation();

    if (!t.isAnyTypeAnnotation(left) && t.isFlowBaseAnnotation(left)) {
      return right.type === left.type;
    }
  }

  function isGenericType(genericName) {
    var type = this.getTypeAnnotation();
    return t.isGenericTypeAnnotation(type) && t.isIdentifier(type.id, { name: genericName });
  }
});
$__System.registerDynamic("15e", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  // Copyright 2014, 2015, 2016, 2017 Simon Lydell
  // License: MIT. (See LICENSE.)

  Object.defineProperty(exports, "__esModule", {
    value: true
  });

  // This regex comes from regex.coffee, and is inserted here by generate-index.js
  // (run `npm run build`).
  exports.default = /((['"])(?:(?!\2|\\).|\\(?:\r\n|[\s\S]))*(\2)?|`(?:[^`\\$]|\\[\s\S]|\$(?!\{)|\$\{(?:[^{}]|\{[^}]*\}?)*\}?)*(`)?)|(\/\/.*)|(\/\*(?:[^*]|\*(?!\/))*(\*\/)?)|(\/(?!\*)(?:\[(?:(?![\]\\]).|\\.)*\]|(?![\/\]\\]).|\\.)+\/(?:(?!\s*(?:\b|[\u0080-\uFFFF$\\'"~({]|[+\-!](?!=)|\.?\d))|[gmiyu]{1,5}\b(?![\u0080-\uFFFF$\\]|\s*(?:[+\-*%&|^<>!=?({]|\/(?![\/*])))))|(0[xX][\da-fA-F]+|0[oO][0-7]+|0[bB][01]+|(?:\d*\.\d+|\d+\.?)(?:[eE][+-]?\d+)?)|((?!\d)(?:(?!\s)[$\w\u0080-\uFFFF]|\\u[\da-fA-F]{4}|\\u\{[\da-fA-F]+\})+)|(--|\+\+|&&|\|\||=>|\.{3}|(?:[+\-\/%&|^]|\*{1,2}|<{1,2}|>{1,3}|!=?|={1,2})=?|[?~.,:;[\](){}])|(\s+)|(^$|[\s\S])/g;

  exports.matchToToken = function (match) {
    var token = { type: "invalid", value: match[0] };
    if (match[1]) token.type = "string", token.closed = !!(match[3] || match[4]);else if (match[5]) token.type = "comment";else if (match[6]) token.type = "comment", token.closed = !!match[7];else if (match[8]) token.type = "regex";else if (match[9]) token.type = "number";else if (match[10]) token.type = "name";else if (match[11]) token.type = "punctuator";else if (match[12]) token.type = "whitespace";
    return token;
  };
});
$__System.registerDynamic('15f', [], true, function ($__require, exports, module) {
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;

	module.exports = function (str) {
		if (typeof str !== 'string') {
			throw new TypeError('Expected a string');
		}

		return str.replace(matchOperatorsRe, '\\$&');
	};
});
$__System.registerDynamic('160', [], true, function ($__require, exports, module) {
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	function assembleStyles() {
		var styles = {
			modifiers: {
				reset: [0, 0],
				bold: [1, 22], // 21 isn't widely supported and 22 does the same thing
				dim: [2, 22],
				italic: [3, 23],
				underline: [4, 24],
				inverse: [7, 27],
				hidden: [8, 28],
				strikethrough: [9, 29]
			},
			colors: {
				black: [30, 39],
				red: [31, 39],
				green: [32, 39],
				yellow: [33, 39],
				blue: [34, 39],
				magenta: [35, 39],
				cyan: [36, 39],
				white: [37, 39],
				gray: [90, 39]
			},
			bgColors: {
				bgBlack: [40, 49],
				bgRed: [41, 49],
				bgGreen: [42, 49],
				bgYellow: [43, 49],
				bgBlue: [44, 49],
				bgMagenta: [45, 49],
				bgCyan: [46, 49],
				bgWhite: [47, 49]
			}
		};

		// fix humans
		styles.colors.grey = styles.colors.gray;

		Object.keys(styles).forEach(function (groupName) {
			var group = styles[groupName];

			Object.keys(group).forEach(function (styleName) {
				var style = group[styleName];

				styles[styleName] = group[styleName] = {
					open: '\u001b[' + style[0] + 'm',
					close: '\u001b[' + style[1] + 'm'
				};
			});

			Object.defineProperty(styles, groupName, {
				value: group,
				enumerable: false
			});
		});

		return styles;
	}

	module.exports = assembleStyles();
	/* Object.defineProperty(module, 'exports', {
 	enumerable: true,
 	get: assembleStyles
 }); */
});
$__System.registerDynamic('161', ['162'], true, function ($__require, exports, module) {
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	var ansiRegex = $__require('162')();

	module.exports = function (str) {
		return typeof str === 'string' ? str.replace(ansiRegex, '') : str;
	};
});
$__System.registerDynamic('162', [], true, function ($__require, exports, module) {
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	module.exports = function () {
		return (/[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-PRZcf-nqry=><]/g
		);
	};
});
$__System.registerDynamic('163', ['162'], true, function ($__require, exports, module) {
  'use strict';

  var global = this || self,
      GLOBAL = global;
  var ansiRegex = $__require('162');
  var re = new RegExp(ansiRegex().source); // remove the `g` flag
  module.exports = re.test.bind(re);
});
$__System.registerDynamic('164', ['c'], true, function ($__require, exports, module) {
	'use strict';

	var process = $__require('c');
	var global = this || self,
	    GLOBAL = global;
	var argv = process.argv;

	var terminator = argv.indexOf('--');
	var hasFlag = function (flag) {
		flag = '--' + flag;
		var pos = argv.indexOf(flag);
		return pos !== -1 && (terminator !== -1 ? pos < terminator : true);
	};

	module.exports = function () {
		if ('FORCE_COLOR' in process.env) {
			return true;
		}

		if (hasFlag('no-color') || hasFlag('no-colors') || hasFlag('color=false')) {
			return false;
		}

		if (hasFlag('color') || hasFlag('colors') || hasFlag('color=true') || hasFlag('color=always')) {
			return true;
		}

		if (process.stdout && !process.stdout.isTTY) {
			return false;
		}

		if (process.platform === 'win32') {
			return true;
		}

		if ('COLORTERM' in process.env) {
			return true;
		}

		if (process.env.TERM === 'dumb') {
			return false;
		}

		if (/^screen|^xterm|^vt100|color|ansi|cygwin|linux/i.test(process.env.TERM)) {
			return true;
		}

		return false;
	}();
});
$__System.registerDynamic('165', ['15f', '160', '161', '163', '164', 'c'], true, function ($__require, exports, module) {
	'use strict';

	var process = $__require('c');
	var global = this || self,
	    GLOBAL = global;
	var escapeStringRegexp = $__require('15f');
	var ansiStyles = $__require('160');
	var stripAnsi = $__require('161');
	var hasAnsi = $__require('163');
	var supportsColor = $__require('164');
	var defineProps = Object.defineProperties;
	var isSimpleWindowsTerm = process.platform === 'win32' && !/^xterm/i.test(process.env.TERM);

	function Chalk(options) {
		// detect mode if not set manually
		this.enabled = !options || options.enabled === undefined ? supportsColor : options.enabled;
	}

	// use bright blue on Windows as the normal blue color is illegible
	if (isSimpleWindowsTerm) {
		ansiStyles.blue.open = '\u001b[94m';
	}

	var styles = function () {
		var ret = {};

		Object.keys(ansiStyles).forEach(function (key) {
			ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');

			ret[key] = {
				get: function () {
					return build.call(this, this._styles.concat(key));
				}
			};
		});

		return ret;
	}();

	var proto = defineProps(function chalk() {}, styles);

	function build(_styles) {
		var builder = function () {
			return applyStyle.apply(builder, arguments);
		};

		builder._styles = _styles;
		builder.enabled = this.enabled;
		// __proto__ is used because we must return a function, but there is
		// no way to create a function with a different prototype.
		/* eslint-disable no-proto */
		builder.__proto__ = proto;

		return builder;
	}

	function applyStyle() {
		// support varags, but simply cast to string in case there's only one arg
		var args = arguments;
		var argsLen = args.length;
		var str = argsLen !== 0 && String(arguments[0]);

		if (argsLen > 1) {
			// don't slice `arguments`, it prevents v8 optimizations
			for (var a = 1; a < argsLen; a++) {
				str += ' ' + args[a];
			}
		}

		if (!this.enabled || !str) {
			return str;
		}

		var nestedStyles = this._styles;
		var i = nestedStyles.length;

		// Turns out that on Windows dimmed gray text becomes invisible in cmd.exe,
		// see https://github.com/chalk/chalk/issues/58
		// If we're on Windows and we're dealing with a gray color, temporarily make 'dim' a noop.
		var originalDim = ansiStyles.dim.open;
		if (isSimpleWindowsTerm && (nestedStyles.indexOf('gray') !== -1 || nestedStyles.indexOf('grey') !== -1)) {
			ansiStyles.dim.open = '';
		}

		while (i--) {
			var code = ansiStyles[nestedStyles[i]];

			// Replace any instances already present with a re-opening code
			// otherwise only the part of the string until said closing code
			// will be colored, and the rest will simply be 'plain'.
			str = code.open + str.replace(code.closeRe, code.open) + code.close;
		}

		// Reset the original 'dim' if we changed it to work around the Windows dimmed gray issue.
		ansiStyles.dim.open = originalDim;

		return str;
	}

	function init() {
		var ret = {};

		Object.keys(styles).forEach(function (name) {
			ret[name] = {
				get: function () {
					return build.call(this, [name]);
				}
			};
		});

		return ret;
	}

	defineProps(Chalk.prototype, init());

	module.exports = new Chalk();
	module.exports.styles = ansiStyles;
	module.exports.hasColor = hasAnsi;
	module.exports.stripColor = stripAnsi;
	module.exports.supportsColor = supportsColor;
});
$__System.registerDynamic("da", ["15e", "104", "165"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (rawLines, lineNumber, colNumber) {
    var opts = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

    colNumber = Math.max(colNumber, 0);

    var highlighted = opts.highlightCode && _chalk2.default.supportsColor || opts.forceColor;
    var chalk = _chalk2.default;
    if (opts.forceColor) {
      chalk = new _chalk2.default.constructor({ enabled: true });
    }
    var maybeHighlight = function maybeHighlight(chalkFn, string) {
      return highlighted ? chalkFn(string) : string;
    };
    var defs = getDefs(chalk);
    if (highlighted) rawLines = highlight(defs, rawLines);

    var linesAbove = opts.linesAbove || 2;
    var linesBelow = opts.linesBelow || 3;

    var lines = rawLines.split(NEWLINE);
    var start = Math.max(lineNumber - (linesAbove + 1), 0);
    var end = Math.min(lines.length, lineNumber + linesBelow);

    if (!lineNumber && !colNumber) {
      start = 0;
      end = lines.length;
    }

    var numberMaxWidth = String(end).length;

    var frame = lines.slice(start, end).map(function (line, index) {
      var number = start + 1 + index;
      var paddedNumber = (" " + number).slice(-numberMaxWidth);
      var gutter = " " + paddedNumber + " | ";
      if (number === lineNumber) {
        var markerLine = "";
        if (colNumber) {
          var markerSpacing = line.slice(0, colNumber - 1).replace(/[^\t]/g, " ");
          markerLine = ["\n ", maybeHighlight(defs.gutter, gutter.replace(/\d/g, " ")), markerSpacing, maybeHighlight(defs.marker, "^")].join("");
        }
        return [maybeHighlight(defs.marker, ">"), maybeHighlight(defs.gutter, gutter), line, markerLine].join("");
      } else {
        return " " + maybeHighlight(defs.gutter, gutter) + line;
      }
    }).join("\n");

    if (highlighted) {
      return chalk.reset(frame);
    } else {
      return frame;
    }
  };

  var _jsTokens = $__require("15e");

  var _jsTokens2 = _interopRequireDefault(_jsTokens);

  var _esutils = $__require("104");

  var _esutils2 = _interopRequireDefault(_esutils);

  var _chalk = $__require("165");

  var _chalk2 = _interopRequireDefault(_chalk);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function getDefs(chalk) {
    return {
      keyword: chalk.cyan,
      capitalized: chalk.yellow,
      jsx_tag: chalk.yellow,
      punctuator: chalk.yellow,

      number: chalk.magenta,
      string: chalk.green,
      regex: chalk.magenta,
      comment: chalk.grey,
      invalid: chalk.white.bgRed.bold,
      gutter: chalk.grey,
      marker: chalk.red.bold
    };
  }

  var NEWLINE = /\r\n|[\n\r\u2028\u2029]/;

  var JSX_TAG = /^[a-z][\w-]*$/i;

  var BRACKET = /^[()\[\]{}]$/;

  function getTokenType(match) {
    var _match$slice = match.slice(-2),
        offset = _match$slice[0],
        text = _match$slice[1];

    var token = (0, _jsTokens.matchToToken)(match);

    if (token.type === "name") {
      if (_esutils2.default.keyword.isReservedWordES6(token.value)) {
        return "keyword";
      }

      if (JSX_TAG.test(token.value) && (text[offset - 1] === "<" || text.substr(offset - 2, 2) == "</")) {
        return "jsx_tag";
      }

      if (token.value[0] !== token.value[0].toLowerCase()) {
        return "capitalized";
      }
    }

    if (token.type === "punctuator" && BRACKET.test(token.value)) {
      return "bracket";
    }

    return token.type;
  }

  function highlight(defs, text) {
    return text.replace(_jsTokens2.default, function () {
      for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
        args[_key] = arguments[_key];
      }

      var type = getTokenType(args);
      var colorize = defs[type];
      if (colorize) {
        return args[0].split(NEWLINE).map(function (str) {
          return colorize(str);
        }).join("\n");
      } else {
        return args[0];
      }
    });
  }

  module.exports = exports["default"];
});
$__System.registerDynamic("166", ["17", "da", "d5", "15a", "dc", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.replaceWithMultiple = replaceWithMultiple;
  exports.replaceWithSourceString = replaceWithSourceString;
  exports.replaceWith = replaceWith;
  exports._replaceWith = _replaceWith;
  exports.replaceExpressionWithStatements = replaceExpressionWithStatements;
  exports.replaceInline = replaceInline;

  var _babelCodeFrame = $__require("da");

  var _babelCodeFrame2 = _interopRequireDefault(_babelCodeFrame);

  var _index = $__require("d5");

  var _index2 = _interopRequireDefault(_index);

  var _index3 = $__require("15a");

  var _index4 = _interopRequireDefault(_index3);

  var _babylon = $__require("dc");

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var hoistVariablesVisitor = {
    Function: function Function(path) {
      path.skip();
    },
    VariableDeclaration: function VariableDeclaration(path) {
      if (path.node.kind !== "var") return;

      var bindings = path.getBindingIdentifiers();
      for (var key in bindings) {
        path.scope.push({ id: bindings[key] });
      }

      var exprs = [];

      for (var _iterator = path.node.declarations, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var declar = _ref;

        if (declar.init) {
          exprs.push(t.expressionStatement(t.assignmentExpression("=", declar.id, declar.init)));
        }
      }

      path.replaceWithMultiple(exprs);
    }
  };

  function replaceWithMultiple(nodes) {
    this.resync();

    nodes = this._verifyNodeList(nodes);
    t.inheritLeadingComments(nodes[0], this.node);
    t.inheritTrailingComments(nodes[nodes.length - 1], this.node);
    this.node = this.container[this.key] = null;
    this.insertAfter(nodes);

    if (this.node) {
      this.requeue();
    } else {
      this.remove();
    }
  }

  function replaceWithSourceString(replacement) {
    this.resync();

    try {
      replacement = "(" + replacement + ")";
      replacement = (0, _babylon.parse)(replacement);
    } catch (err) {
      var loc = err.loc;
      if (loc) {
        err.message += " - make sure this is an expression.";
        err.message += "\n" + (0, _babelCodeFrame2.default)(replacement, loc.line, loc.column + 1);
      }
      throw err;
    }

    replacement = replacement.program.body[0].expression;
    _index2.default.removeProperties(replacement);
    return this.replaceWith(replacement);
  }

  function replaceWith(replacement) {
    this.resync();

    if (this.removed) {
      throw new Error("You can't replace this node, we've already removed it");
    }

    if (replacement instanceof _index4.default) {
      replacement = replacement.node;
    }

    if (!replacement) {
      throw new Error("You passed `path.replaceWith()` a falsy node, use `path.remove()` instead");
    }

    if (this.node === replacement) {
      return;
    }

    if (this.isProgram() && !t.isProgram(replacement)) {
      throw new Error("You can only replace a Program root node with another Program node");
    }

    if (Array.isArray(replacement)) {
      throw new Error("Don't use `path.replaceWith()` with an array of nodes, use `path.replaceWithMultiple()`");
    }

    if (typeof replacement === "string") {
      throw new Error("Don't use `path.replaceWith()` with a source string, use `path.replaceWithSourceString()`");
    }

    if (this.isNodeType("Statement") && t.isExpression(replacement)) {
      if (!this.canHaveVariableDeclarationOrExpression() && !this.canSwapBetweenExpressionAndStatement(replacement)) {
        replacement = t.expressionStatement(replacement);
      }
    }

    if (this.isNodeType("Expression") && t.isStatement(replacement)) {
      if (!this.canHaveVariableDeclarationOrExpression() && !this.canSwapBetweenExpressionAndStatement(replacement)) {
        return this.replaceExpressionWithStatements([replacement]);
      }
    }

    var oldNode = this.node;
    if (oldNode) {
      t.inheritsComments(replacement, oldNode);
      t.removeComments(oldNode);
    }

    this._replaceWith(replacement);
    this.type = replacement.type;

    this.setScope();

    this.requeue();
  }

  function _replaceWith(node) {
    if (!this.container) {
      throw new ReferenceError("Container is falsy");
    }

    if (this.inList) {
      t.validate(this.parent, this.key, [node]);
    } else {
      t.validate(this.parent, this.key, node);
    }

    this.debug(function () {
      return "Replace with " + (node && node.type);
    });

    this.node = this.container[this.key] = node;
  }

  function replaceExpressionWithStatements(nodes) {
    this.resync();

    var toSequenceExpression = t.toSequenceExpression(nodes, this.scope);

    if (t.isSequenceExpression(toSequenceExpression)) {
      var exprs = toSequenceExpression.expressions;

      if (exprs.length >= 2 && this.parentPath.isExpressionStatement()) {
        this._maybePopFromStatements(exprs);
      }

      if (exprs.length === 1) {
        this.replaceWith(exprs[0]);
      } else {
        this.replaceWith(toSequenceExpression);
      }
    } else if (toSequenceExpression) {
      this.replaceWith(toSequenceExpression);
    } else {
      var container = t.functionExpression(null, [], t.blockStatement(nodes));
      container.shadow = true;

      this.replaceWith(t.callExpression(container, []));
      this.traverse(hoistVariablesVisitor);

      var completionRecords = this.get("callee").getCompletionRecords();
      for (var _iterator2 = completionRecords, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var path = _ref2;

        if (!path.isExpressionStatement()) continue;

        var loop = path.findParent(function (path) {
          return path.isLoop();
        });
        if (loop) {
          var uid = loop.getData("expressionReplacementReturnUid");

          if (!uid) {
            var callee = this.get("callee");
            uid = callee.scope.generateDeclaredUidIdentifier("ret");
            callee.get("body").pushContainer("body", t.returnStatement(uid));
            loop.setData("expressionReplacementReturnUid", uid);
          } else {
            uid = t.identifier(uid.name);
          }

          path.get("expression").replaceWith(t.assignmentExpression("=", uid, path.node.expression));
        } else {
          path.replaceWith(t.returnStatement(path.node.expression));
        }
      }

      return this.node;
    }
  }

  function replaceInline(nodes) {
    this.resync();

    if (Array.isArray(nodes)) {
      if (Array.isArray(this.container)) {
        nodes = this._verifyNodeList(nodes);
        this._containerInsertAfter(nodes);
        return this.remove();
      } else {
        return this.replaceWithMultiple(nodes);
      }
    } else {
      return this.replaceWith(nodes);
    }
  }
});
$__System.registerDynamic('167', ['168', '39', '169', '16a', '16b', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var global = $__require('168'),
      core = $__require('39'),
      dP = $__require('169'),
      DESCRIPTORS = $__require('16a'),
      SPECIES = $__require('16b')('species');

  module.exports = function (KEY) {
    var C = typeof core[KEY] == 'function' ? core[KEY] : global[KEY];
    if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {
      configurable: true,
      get: function () {
        return this;
      }
    });
  };
});
$__System.registerDynamic('16c', ['169', '16d', '16e', '111', '16f', '170', '171', '172', '173', '167', '16a', '174', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var dP = $__require('169').f,
      create = $__require('16d'),
      redefineAll = $__require('16e'),
      ctx = $__require('111'),
      anInstance = $__require('16f'),
      defined = $__require('170'),
      forOf = $__require('171'),
      $iterDefine = $__require('172'),
      step = $__require('173'),
      setSpecies = $__require('167'),
      DESCRIPTORS = $__require('16a'),
      fastKey = $__require('174').fastKey,
      SIZE = DESCRIPTORS ? '_s' : 'size';

  var getEntry = function (that, key) {
    // fast case
    var index = fastKey(key),
        entry;
    if (index !== 'F') return that._i[index];
    // frozen object case
    for (entry = that._f; entry; entry = entry.n) {
      if (entry.k == key) return entry;
    }
  };

  module.exports = {
    getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {
      var C = wrapper(function (that, iterable) {
        anInstance(that, C, NAME, '_i');
        that._i = create(null); // index
        that._f = undefined; // first entry
        that._l = undefined; // last entry
        that[SIZE] = 0; // size
        if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
      });
      redefineAll(C.prototype, {
        // 23.1.3.1 Map.prototype.clear()
        // 23.2.3.2 Set.prototype.clear()
        clear: function clear() {
          for (var that = this, data = that._i, entry = that._f; entry; entry = entry.n) {
            entry.r = true;
            if (entry.p) entry.p = entry.p.n = undefined;
            delete data[entry.i];
          }
          that._f = that._l = undefined;
          that[SIZE] = 0;
        },
        // 23.1.3.3 Map.prototype.delete(key)
        // 23.2.3.4 Set.prototype.delete(value)
        'delete': function (key) {
          var that = this,
              entry = getEntry(that, key);
          if (entry) {
            var next = entry.n,
                prev = entry.p;
            delete that._i[entry.i];
            entry.r = true;
            if (prev) prev.n = next;
            if (next) next.p = prev;
            if (that._f == entry) that._f = next;
            if (that._l == entry) that._l = prev;
            that[SIZE]--;
          }return !!entry;
        },
        // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)
        // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)
        forEach: function forEach(callbackfn /*, that = undefined */) {
          anInstance(this, C, 'forEach');
          var f = ctx(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3),
              entry;
          while (entry = entry ? entry.n : this._f) {
            f(entry.v, entry.k, this);
            // revert to the last existing entry
            while (entry && entry.r) entry = entry.p;
          }
        },
        // 23.1.3.7 Map.prototype.has(key)
        // 23.2.3.7 Set.prototype.has(value)
        has: function has(key) {
          return !!getEntry(this, key);
        }
      });
      if (DESCRIPTORS) dP(C.prototype, 'size', {
        get: function () {
          return defined(this[SIZE]);
        }
      });
      return C;
    },
    def: function (that, key, value) {
      var entry = getEntry(that, key),
          prev,
          index;
      // change existing entry
      if (entry) {
        entry.v = value;
        // create new entry
      } else {
        that._l = entry = {
          i: index = fastKey(key, true), // <- index
          k: key, // <- key
          v: value, // <- value
          p: prev = that._l, // <- previous entry
          n: undefined, // <- next entry
          r: false // <- removed
        };
        if (!that._f) that._f = entry;
        if (prev) prev.n = entry;
        that[SIZE]++;
        // add to index
        if (index !== 'F') that._i[index] = entry;
      }return that;
    },
    getEntry: getEntry,
    setStrong: function (C, NAME, IS_MAP) {
      // add .keys, .values, .entries, [@@iterator]
      // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11
      $iterDefine(C, NAME, function (iterated, kind) {
        this._t = iterated; // target
        this._k = kind; // kind
        this._l = undefined; // previous
      }, function () {
        var that = this,
            kind = that._k,
            entry = that._l;
        // revert to the last existing entry
        while (entry && entry.r) entry = entry.p;
        // get next entry
        if (!that._t || !(that._l = entry = entry ? entry.n : that._t._f)) {
          // or finish the iteration
          that._t = undefined;
          return step(1);
        }
        // return step by kind
        if (kind == 'keys') return step(0, entry.k);
        if (kind == 'values') return step(0, entry.v);
        return step(0, [entry.k, entry.v]);
      }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);

      // add [@@species], 23.1.2.2, 23.2.2.2
      setSpecies(NAME);
    }
  };
});
$__System.registerDynamic('175', ['16c', '35', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var strong = $__require('16c');

  // 23.1 Map Objects
  module.exports = $__require('35')('Map', function (get) {
    return function Map() {
      return get(this, arguments.length > 0 ? arguments[0] : undefined);
    };
  }, {
    // 23.1.3.6 Map.prototype.get(key)
    get: function get(key) {
      var entry = strong.getEntry(this, key);
      return entry && entry.v;
    },
    // 23.1.3.9 Map.prototype.set(key, value)
    set: function set(key, value) {
      return strong.def(this, key === 0 ? 0 : key, value);
    }
  }, strong, true);
});
$__System.registerDynamic('176', ['171', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var forOf = $__require('171');

  module.exports = function (iter, ITERATOR) {
    var result = [];
    forOf(iter, false, result.push, result, ITERATOR);
    return result;
  };
});
$__System.registerDynamic('177', ['178', '176', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // https://github.com/DavidBruant/Map-Set.prototype.toJSON
  var classof = $__require('178'),
      from = $__require('176');
  module.exports = function (NAME) {
    return function toJSON() {
      if (classof(this) != NAME) throw TypeError(NAME + "#toJSON isn't generic");
      return from(this);
    };
  };
});
$__System.registerDynamic('179', ['cb', '177', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // https://github.com/DavidBruant/Map-Set.prototype.toJSON
  var $export = $__require('cb');

  $export($export.P + $export.R, 'Map', { toJSON: $__require('177')('Map') });
});
$__System.registerDynamic('17a', ['37', '17b', '38', '175', '179', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('37');
  $__require('17b');
  $__require('38');
  $__require('175');
  $__require('179');
  module.exports = $__require('39').Map;
});
$__System.registerDynamic("d4", ["17a"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("17a"), __esModule: true };
});
$__System.registerDynamic("17c", ["32", "17", "d4", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _typeof2 = $__require("32");

  var _typeof3 = _interopRequireDefault(_typeof2);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _map = $__require("d4");

  var _map2 = _interopRequireDefault(_map);

  exports.evaluateTruthy = evaluateTruthy;
  exports.evaluate = evaluate;

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var VALID_CALLEES = ["String", "Number", "Math"];
  var INVALID_METHODS = ["random"];

  function evaluateTruthy() {
    var res = this.evaluate();
    if (res.confident) return !!res.value;
  }

  function evaluate() {
    var confident = true;
    var deoptPath = void 0;
    var seen = new _map2.default();

    function deopt(path) {
      if (!confident) return;
      deoptPath = path;
      confident = false;
    }

    var value = evaluate(this);
    if (!confident) value = undefined;
    return {
      confident: confident,
      deopt: deoptPath,
      value: value
    };

    function evaluate(path) {
      var node = path.node;

      if (seen.has(node)) {
        var existing = seen.get(node);
        if (existing.resolved) {
          return existing.value;
        } else {
          deopt(path);
          return;
        }
      } else {
        var item = { resolved: false };
        seen.set(node, item);

        var val = _evaluate(path);
        if (confident) {
          item.resolved = true;
          item.value = val;
        }
        return val;
      }
    }

    function _evaluate(path) {
      if (!confident) return;

      var node = path.node;

      if (path.isSequenceExpression()) {
        var exprs = path.get("expressions");
        return evaluate(exprs[exprs.length - 1]);
      }

      if (path.isStringLiteral() || path.isNumericLiteral() || path.isBooleanLiteral()) {
        return node.value;
      }

      if (path.isNullLiteral()) {
        return null;
      }

      if (path.isTemplateLiteral()) {
        var str = "";

        var i = 0;
        var _exprs = path.get("expressions");

        for (var _iterator = node.quasis, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
          var _ref;

          if (_isArray) {
            if (_i >= _iterator.length) break;
            _ref = _iterator[_i++];
          } else {
            _i = _iterator.next();
            if (_i.done) break;
            _ref = _i.value;
          }

          var elem = _ref;

          if (!confident) break;

          str += elem.value.cooked;

          var expr = _exprs[i++];
          if (expr) str += String(evaluate(expr));
        }

        if (!confident) return;
        return str;
      }

      if (path.isConditionalExpression()) {
        var testResult = evaluate(path.get("test"));
        if (!confident) return;
        if (testResult) {
          return evaluate(path.get("consequent"));
        } else {
          return evaluate(path.get("alternate"));
        }
      }

      if (path.isExpressionWrapper()) {
        return evaluate(path.get("expression"));
      }

      if (path.isMemberExpression() && !path.parentPath.isCallExpression({ callee: node })) {
        var property = path.get("property");
        var object = path.get("object");

        if (object.isLiteral() && property.isIdentifier()) {
          var _value = object.node.value;
          var type = typeof _value === "undefined" ? "undefined" : (0, _typeof3.default)(_value);
          if (type === "number" || type === "string") {
            return _value[property.node.name];
          }
        }
      }

      if (path.isReferencedIdentifier()) {
        var binding = path.scope.getBinding(node.name);

        if (binding && binding.constantViolations.length > 0) {
          return deopt(binding.path);
        }

        if (binding && path.node.start < binding.path.node.end) {
          return deopt(binding.path);
        }

        if (binding && binding.hasValue) {
          return binding.value;
        } else {
          if (node.name === "undefined") {
            return binding ? deopt(binding.path) : undefined;
          } else if (node.name === "Infinity") {
            return binding ? deopt(binding.path) : Infinity;
          } else if (node.name === "NaN") {
            return binding ? deopt(binding.path) : NaN;
          }

          var resolved = path.resolve();
          if (resolved === path) {
            return deopt(path);
          } else {
            return evaluate(resolved);
          }
        }
      }

      if (path.isUnaryExpression({ prefix: true })) {
        if (node.operator === "void") {
          return undefined;
        }

        var argument = path.get("argument");
        if (node.operator === "typeof" && (argument.isFunction() || argument.isClass())) {
          return "function";
        }

        var arg = evaluate(argument);
        if (!confident) return;
        switch (node.operator) {
          case "!":
            return !arg;
          case "+":
            return +arg;
          case "-":
            return -arg;
          case "~":
            return ~arg;
          case "typeof":
            return typeof arg === "undefined" ? "undefined" : (0, _typeof3.default)(arg);
        }
      }

      if (path.isArrayExpression()) {
        var arr = [];
        var elems = path.get("elements");
        for (var _iterator2 = elems, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
          var _ref2;

          if (_isArray2) {
            if (_i2 >= _iterator2.length) break;
            _ref2 = _iterator2[_i2++];
          } else {
            _i2 = _iterator2.next();
            if (_i2.done) break;
            _ref2 = _i2.value;
          }

          var _elem = _ref2;

          _elem = _elem.evaluate();

          if (_elem.confident) {
            arr.push(_elem.value);
          } else {
            return deopt(_elem);
          }
        }
        return arr;
      }

      if (path.isObjectExpression()) {
        var obj = {};
        var props = path.get("properties");
        for (var _iterator3 = props, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
          var _ref3;

          if (_isArray3) {
            if (_i3 >= _iterator3.length) break;
            _ref3 = _iterator3[_i3++];
          } else {
            _i3 = _iterator3.next();
            if (_i3.done) break;
            _ref3 = _i3.value;
          }

          var prop = _ref3;

          if (prop.isObjectMethod() || prop.isSpreadProperty()) {
            return deopt(prop);
          }
          var keyPath = prop.get("key");
          var key = keyPath;
          if (prop.node.computed) {
            key = key.evaluate();
            if (!key.confident) {
              return deopt(keyPath);
            }
            key = key.value;
          } else if (key.isIdentifier()) {
            key = key.node.name;
          } else {
            key = key.node.value;
          }
          var valuePath = prop.get("value");
          var _value2 = valuePath.evaluate();
          if (!_value2.confident) {
            return deopt(valuePath);
          }
          _value2 = _value2.value;
          obj[key] = _value2;
        }
        return obj;
      }

      if (path.isLogicalExpression()) {
        var wasConfident = confident;
        var left = evaluate(path.get("left"));
        var leftConfident = confident;
        confident = wasConfident;
        var right = evaluate(path.get("right"));
        var rightConfident = confident;
        confident = leftConfident && rightConfident;

        switch (node.operator) {
          case "||":
            if (left && leftConfident) {
              confident = true;
              return left;
            }

            if (!confident) return;

            return left || right;
          case "&&":
            if (!left && leftConfident || !right && rightConfident) {
              confident = true;
            }

            if (!confident) return;

            return left && right;
        }
      }

      if (path.isBinaryExpression()) {
        var _left = evaluate(path.get("left"));
        if (!confident) return;
        var _right = evaluate(path.get("right"));
        if (!confident) return;

        switch (node.operator) {
          case "-":
            return _left - _right;
          case "+":
            return _left + _right;
          case "/":
            return _left / _right;
          case "*":
            return _left * _right;
          case "%":
            return _left % _right;
          case "**":
            return Math.pow(_left, _right);
          case "<":
            return _left < _right;
          case ">":
            return _left > _right;
          case "<=":
            return _left <= _right;
          case ">=":
            return _left >= _right;
          case "==":
            return _left == _right;
          case "!=":
            return _left != _right;
          case "===":
            return _left === _right;
          case "!==":
            return _left !== _right;
          case "|":
            return _left | _right;
          case "&":
            return _left & _right;
          case "^":
            return _left ^ _right;
          case "<<":
            return _left << _right;
          case ">>":
            return _left >> _right;
          case ">>>":
            return _left >>> _right;
        }
      }

      if (path.isCallExpression()) {
        var callee = path.get("callee");
        var context = void 0;
        var func = void 0;

        if (callee.isIdentifier() && !path.scope.getBinding(callee.node.name, true) && VALID_CALLEES.indexOf(callee.node.name) >= 0) {
          func = global[node.callee.name];
        }

        if (callee.isMemberExpression()) {
          var _object = callee.get("object");
          var _property = callee.get("property");

          if (_object.isIdentifier() && _property.isIdentifier() && VALID_CALLEES.indexOf(_object.node.name) >= 0 && INVALID_METHODS.indexOf(_property.node.name) < 0) {
            context = global[_object.node.name];
            func = context[_property.node.name];
          }

          if (_object.isLiteral() && _property.isIdentifier()) {
            var _type = (0, _typeof3.default)(_object.node.value);
            if (_type === "string" || _type === "number") {
              context = _object.node.value;
              func = context[_property.node.name];
            }
          }
        }

        if (func) {
          var args = path.get("arguments").map(evaluate);
          if (!confident) return;

          return func.apply(context, args);
        }
      }

      deopt(path);
    }
  }
});
$__System.registerDynamic("17d", ["11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.toComputedKey = toComputedKey;
  exports.ensureBlock = ensureBlock;
  exports.arrowFunctionToShadowed = arrowFunctionToShadowed;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function toComputedKey() {
    var node = this.node;

    var key = void 0;
    if (this.isMemberExpression()) {
      key = node.property;
    } else if (this.isProperty() || this.isMethod()) {
      key = node.key;
    } else {
      throw new ReferenceError("todo");
    }

    if (!node.computed) {
      if (t.isIdentifier(key)) key = t.stringLiteral(key.name);
    }

    return key;
  }

  function ensureBlock() {
    return t.ensureBlock(this.node);
  }

  function arrowFunctionToShadowed() {
    if (!this.isArrowFunctionExpression()) return;

    this.ensureBlock();

    var node = this.node;

    node.expression = false;
    node.type = "FunctionExpression";
    node.shadow = node.shadow || true;
  }
});
$__System.registerDynamic("17e", ["17", "aa", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.is = undefined;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.matchesPattern = matchesPattern;
  exports.has = has;
  exports.isStatic = isStatic;
  exports.isnt = isnt;
  exports.equals = equals;
  exports.isNodeType = isNodeType;
  exports.canHaveVariableDeclarationOrExpression = canHaveVariableDeclarationOrExpression;
  exports.canSwapBetweenExpressionAndStatement = canSwapBetweenExpressionAndStatement;
  exports.isCompletionRecord = isCompletionRecord;
  exports.isStatementOrBlock = isStatementOrBlock;
  exports.referencesImport = referencesImport;
  exports.getSource = getSource;
  exports.willIMaybeExecuteBefore = willIMaybeExecuteBefore;
  exports._guessExecutionStatusRelativeTo = _guessExecutionStatusRelativeTo;
  exports._guessExecutionStatusRelativeToDifferentFunctions = _guessExecutionStatusRelativeToDifferentFunctions;
  exports.resolve = resolve;
  exports._resolve = _resolve;

  var _includes = $__require("aa");

  var _includes2 = _interopRequireDefault(_includes);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function matchesPattern(pattern, allowPartial) {
    if (!this.isMemberExpression()) return false;

    var parts = pattern.split(".");
    var search = [this.node];
    var i = 0;

    function matches(name) {
      var part = parts[i];
      return part === "*" || name === part;
    }

    while (search.length) {
      var node = search.shift();

      if (allowPartial && i === parts.length) {
        return true;
      }

      if (t.isIdentifier(node)) {
        if (!matches(node.name)) return false;
      } else if (t.isLiteral(node)) {
        if (!matches(node.value)) return false;
      } else if (t.isMemberExpression(node)) {
        if (node.computed && !t.isLiteral(node.property)) {
          return false;
        } else {
          search.unshift(node.property);
          search.unshift(node.object);
          continue;
        }
      } else if (t.isThisExpression(node)) {
        if (!matches("this")) return false;
      } else {
        return false;
      }

      if (++i > parts.length) {
        return false;
      }
    }

    return i === parts.length;
  }

  function has(key) {
    var val = this.node && this.node[key];
    if (val && Array.isArray(val)) {
      return !!val.length;
    } else {
      return !!val;
    }
  }

  function isStatic() {
    return this.scope.isStatic(this.node);
  }

  var is = exports.is = has;

  function isnt(key) {
    return !this.has(key);
  }

  function equals(key, value) {
    return this.node[key] === value;
  }

  function isNodeType(type) {
    return t.isType(this.type, type);
  }

  function canHaveVariableDeclarationOrExpression() {
    return (this.key === "init" || this.key === "left") && this.parentPath.isFor();
  }

  function canSwapBetweenExpressionAndStatement(replacement) {
    if (this.key !== "body" || !this.parentPath.isArrowFunctionExpression()) {
      return false;
    }

    if (this.isExpression()) {
      return t.isBlockStatement(replacement);
    } else if (this.isBlockStatement()) {
      return t.isExpression(replacement);
    }

    return false;
  }

  function isCompletionRecord(allowInsideFunction) {
    var path = this;
    var first = true;

    do {
      var container = path.container;

      if (path.isFunction() && !first) {
        return !!allowInsideFunction;
      }

      first = false;

      if (Array.isArray(container) && path.key !== container.length - 1) {
        return false;
      }
    } while ((path = path.parentPath) && !path.isProgram());

    return true;
  }

  function isStatementOrBlock() {
    if (this.parentPath.isLabeledStatement() || t.isBlockStatement(this.container)) {
      return false;
    } else {
      return (0, _includes2.default)(t.STATEMENT_OR_BLOCK_KEYS, this.key);
    }
  }

  function referencesImport(moduleSource, importName) {
    if (!this.isReferencedIdentifier()) return false;

    var binding = this.scope.getBinding(this.node.name);
    if (!binding || binding.kind !== "module") return false;

    var path = binding.path;
    var parent = path.parentPath;
    if (!parent.isImportDeclaration()) return false;

    if (parent.node.source.value === moduleSource) {
      if (!importName) return true;
    } else {
      return false;
    }

    if (path.isImportDefaultSpecifier() && importName === "default") {
      return true;
    }

    if (path.isImportNamespaceSpecifier() && importName === "*") {
      return true;
    }

    if (path.isImportSpecifier() && path.node.imported.name === importName) {
      return true;
    }

    return false;
  }

  function getSource() {
    var node = this.node;
    if (node.end) {
      return this.hub.file.code.slice(node.start, node.end);
    } else {
      return "";
    }
  }

  function willIMaybeExecuteBefore(target) {
    return this._guessExecutionStatusRelativeTo(target) !== "after";
  }

  function _guessExecutionStatusRelativeTo(target) {
    var targetFuncParent = target.scope.getFunctionParent();
    var selfFuncParent = this.scope.getFunctionParent();

    if (targetFuncParent.node !== selfFuncParent.node) {
      var status = this._guessExecutionStatusRelativeToDifferentFunctions(targetFuncParent);
      if (status) {
        return status;
      } else {
        target = targetFuncParent.path;
      }
    }

    var targetPaths = target.getAncestry();
    if (targetPaths.indexOf(this) >= 0) return "after";

    var selfPaths = this.getAncestry();

    var commonPath = void 0;
    var targetIndex = void 0;
    var selfIndex = void 0;
    for (selfIndex = 0; selfIndex < selfPaths.length; selfIndex++) {
      var selfPath = selfPaths[selfIndex];
      targetIndex = targetPaths.indexOf(selfPath);
      if (targetIndex >= 0) {
        commonPath = selfPath;
        break;
      }
    }
    if (!commonPath) {
      return "before";
    }

    var targetRelationship = targetPaths[targetIndex - 1];
    var selfRelationship = selfPaths[selfIndex - 1];
    if (!targetRelationship || !selfRelationship) {
      return "before";
    }

    if (targetRelationship.listKey && targetRelationship.container === selfRelationship.container) {
      return targetRelationship.key > selfRelationship.key ? "before" : "after";
    }

    var targetKeyPosition = t.VISITOR_KEYS[targetRelationship.type].indexOf(targetRelationship.key);
    var selfKeyPosition = t.VISITOR_KEYS[selfRelationship.type].indexOf(selfRelationship.key);
    return targetKeyPosition > selfKeyPosition ? "before" : "after";
  }

  function _guessExecutionStatusRelativeToDifferentFunctions(targetFuncParent) {
    var targetFuncPath = targetFuncParent.path;
    if (!targetFuncPath.isFunctionDeclaration()) return;

    var binding = targetFuncPath.scope.getBinding(targetFuncPath.node.id.name);

    if (!binding.references) return "before";

    var referencePaths = binding.referencePaths;

    for (var _iterator = referencePaths, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var path = _ref;

      if (path.key !== "callee" || !path.parentPath.isCallExpression()) {
        return;
      }
    }

    var allStatus = void 0;

    for (var _iterator2 = referencePaths, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
      var _ref2;

      if (_isArray2) {
        if (_i2 >= _iterator2.length) break;
        _ref2 = _iterator2[_i2++];
      } else {
        _i2 = _iterator2.next();
        if (_i2.done) break;
        _ref2 = _i2.value;
      }

      var _path = _ref2;

      var childOfFunction = !!_path.find(function (path) {
        return path.node === targetFuncPath.node;
      });
      if (childOfFunction) continue;

      var status = this._guessExecutionStatusRelativeTo(_path);

      if (allStatus) {
        if (allStatus !== status) return;
      } else {
        allStatus = status;
      }
    }

    return allStatus;
  }

  function resolve(dangerous, resolved) {
    return this._resolve(dangerous, resolved) || this;
  }

  function _resolve(dangerous, resolved) {
    if (resolved && resolved.indexOf(this) >= 0) return;

    resolved = resolved || [];
    resolved.push(this);

    if (this.isVariableDeclarator()) {
      if (this.get("id").isIdentifier()) {
        return this.get("init").resolve(dangerous, resolved);
      } else {}
    } else if (this.isReferencedIdentifier()) {
      var binding = this.scope.getBinding(this.node.name);
      if (!binding) return;

      if (!binding.constant) return;

      if (binding.kind === "module") return;

      if (binding.path !== this) {
        var ret = binding.path.resolve(dangerous, resolved);

        if (this.find(function (parent) {
          return parent.node === ret.node;
        })) return;
        return ret;
      }
    } else if (this.isTypeCastExpression()) {
      return this.get("expression").resolve(dangerous, resolved);
    } else if (dangerous && this.isMemberExpression()) {

      var targetKey = this.toComputedKey();
      if (!t.isLiteral(targetKey)) return;

      var targetName = targetKey.value;

      var target = this.get("object").resolve(dangerous, resolved);

      if (target.isObjectExpression()) {
        var props = target.get("properties");
        for (var _iterator3 = props, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
          var _ref3;

          if (_isArray3) {
            if (_i3 >= _iterator3.length) break;
            _ref3 = _iterator3[_i3++];
          } else {
            _i3 = _iterator3.next();
            if (_i3.done) break;
            _ref3 = _i3.value;
          }

          var prop = _ref3;

          if (!prop.isProperty()) continue;

          var key = prop.get("key");

          var match = prop.isnt("computed") && key.isIdentifier({ name: targetName });

          match = match || key.isLiteral({ value: targetName });

          if (match) return prop.get("value").resolve(dangerous, resolved);
        }
      } else if (target.isArrayExpression() && !isNaN(+targetName)) {
        var elems = target.get("elements");
        var elem = elems[targetName];
        if (elem) return elem.resolve(dangerous, resolved);
      }
    }
  }
});
$__System.registerDynamic("17f", ["17", "d5", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.call = call;
  exports._call = _call;
  exports.isBlacklisted = isBlacklisted;
  exports.visit = visit;
  exports.skip = skip;
  exports.skipKey = skipKey;
  exports.stop = stop;
  exports.setScope = setScope;
  exports.setContext = setContext;
  exports.resync = resync;
  exports._resyncParent = _resyncParent;
  exports._resyncKey = _resyncKey;
  exports._resyncList = _resyncList;
  exports._resyncRemoved = _resyncRemoved;
  exports.popContext = popContext;
  exports.pushContext = pushContext;
  exports.setup = setup;
  exports.setKey = setKey;
  exports.requeue = requeue;
  exports._getQueueContexts = _getQueueContexts;

  var _index = $__require("d5");

  var _index2 = _interopRequireDefault(_index);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function call(key) {
    var opts = this.opts;

    this.debug(function () {
      return key;
    });

    if (this.node) {
      if (this._call(opts[key])) return true;
    }

    if (this.node) {
      return this._call(opts[this.node.type] && opts[this.node.type][key]);
    }

    return false;
  }

  function _call(fns) {
    if (!fns) return false;

    for (var _iterator = fns, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var fn = _ref;

      if (!fn) continue;

      var node = this.node;
      if (!node) return true;

      var ret = fn.call(this.state, this, this.state);
      if (ret) throw new Error("Unexpected return value from visitor method " + fn);

      if (this.node !== node) return true;

      if (this.shouldStop || this.shouldSkip || this.removed) return true;
    }

    return false;
  }

  function isBlacklisted() {
    var blacklist = this.opts.blacklist;
    return blacklist && blacklist.indexOf(this.node.type) > -1;
  }

  function visit() {
    if (!this.node) {
      return false;
    }

    if (this.isBlacklisted()) {
      return false;
    }

    if (this.opts.shouldSkip && this.opts.shouldSkip(this)) {
      return false;
    }

    if (this.call("enter") || this.shouldSkip) {
      this.debug(function () {
        return "Skip...";
      });
      return this.shouldStop;
    }

    this.debug(function () {
      return "Recursing into...";
    });
    _index2.default.node(this.node, this.opts, this.scope, this.state, this, this.skipKeys);

    this.call("exit");

    return this.shouldStop;
  }

  function skip() {
    this.shouldSkip = true;
  }

  function skipKey(key) {
    this.skipKeys[key] = true;
  }

  function stop() {
    this.shouldStop = true;
    this.shouldSkip = true;
  }

  function setScope() {
    if (this.opts && this.opts.noScope) return;

    var target = this.context && this.context.scope;

    if (!target) {
      var path = this.parentPath;
      while (path && !target) {
        if (path.opts && path.opts.noScope) return;

        target = path.scope;
        path = path.parentPath;
      }
    }

    this.scope = this.getScope(target);
    if (this.scope) this.scope.init();
  }

  function setContext(context) {
    this.shouldSkip = false;
    this.shouldStop = false;
    this.removed = false;
    this.skipKeys = {};

    if (context) {
      this.context = context;
      this.state = context.state;
      this.opts = context.opts;
    }

    this.setScope();

    return this;
  }

  function resync() {
    if (this.removed) return;

    this._resyncParent();
    this._resyncList();
    this._resyncKey();
  }

  function _resyncParent() {
    if (this.parentPath) {
      this.parent = this.parentPath.node;
    }
  }

  function _resyncKey() {
    if (!this.container) return;

    if (this.node === this.container[this.key]) return;

    if (Array.isArray(this.container)) {
      for (var i = 0; i < this.container.length; i++) {
        if (this.container[i] === this.node) {
          return this.setKey(i);
        }
      }
    } else {
      for (var key in this.container) {
        if (this.container[key] === this.node) {
          return this.setKey(key);
        }
      }
    }

    this.key = null;
  }

  function _resyncList() {
    if (!this.parent || !this.inList) return;

    var newContainer = this.parent[this.listKey];
    if (this.container === newContainer) return;

    this.container = newContainer || null;
  }

  function _resyncRemoved() {
    if (this.key == null || !this.container || this.container[this.key] !== this.node) {
      this._markRemoved();
    }
  }

  function popContext() {
    this.contexts.pop();
    this.setContext(this.contexts[this.contexts.length - 1]);
  }

  function pushContext(context) {
    this.contexts.push(context);
    this.setContext(context);
  }

  function setup(parentPath, container, listKey, key) {
    this.inList = !!listKey;
    this.listKey = listKey;
    this.parentKey = listKey || key;
    this.container = container;

    this.parentPath = parentPath || this.parentPath;
    this.setKey(key);
  }

  function setKey(key) {
    this.key = key;
    this.node = this.container[this.key];
    this.type = this.node && this.node.type;
  }

  function requeue() {
    var pathToQueue = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this;

    if (pathToQueue.removed) return;

    var contexts = this.contexts;

    for (var _iterator2 = contexts, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
      var _ref2;

      if (_isArray2) {
        if (_i2 >= _iterator2.length) break;
        _ref2 = _iterator2[_i2++];
      } else {
        _i2 = _iterator2.next();
        if (_i2.done) break;
        _ref2 = _i2.value;
      }

      var context = _ref2;

      context.maybeQueue(pathToQueue);
    }
  }

  function _getQueueContexts() {
    var path = this;
    var contexts = this.contexts;
    while (!contexts.length) {
      path = path.parentPath;
      contexts = path.contexts;
    }
    return contexts;
  }
});
$__System.registerDynamic("180", ["c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  var hooks = exports.hooks = [function (self, parent) {
    var removeParent = self.key === "test" && (parent.isWhile() || parent.isSwitchCase()) || self.key === "declaration" && parent.isExportDeclaration() || self.key === "body" && parent.isLabeledStatement() || self.listKey === "declarations" && parent.isVariableDeclaration() && parent.node.declarations.length === 1 || self.key === "expression" && parent.isExpressionStatement();

    if (removeParent) {
      parent.remove();
      return true;
    }
  }, function (self, parent) {
    if (parent.isSequenceExpression() && parent.node.expressions.length === 1) {
      parent.replaceWith(parent.node.expressions[0]);
      return true;
    }
  }, function (self, parent) {
    if (parent.isBinary()) {
      if (self.key === "left") {
        parent.replaceWith(parent.node.right);
      } else {
        parent.replaceWith(parent.node.left);
      }
      return true;
    }
  }, function (self, parent) {
    if (parent.isIfStatement() && (self.key === "consequent" || self.key === "alternate") || self.key === "body" && (parent.isLoop() || parent.isArrowFunctionExpression())) {
      self.replaceWith({
        type: "BlockStatement",
        body: []
      });
      return true;
    }
  }];
});
$__System.registerDynamic("181", ["17", "180", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.remove = remove;
  exports._callRemovalHooks = _callRemovalHooks;
  exports._remove = _remove;
  exports._markRemoved = _markRemoved;
  exports._assertUnremoved = _assertUnremoved;

  var _removalHooks = $__require("180");

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function remove() {
    this._assertUnremoved();

    this.resync();

    if (this._callRemovalHooks()) {
      this._markRemoved();
      return;
    }

    this.shareCommentsWithSiblings();
    this._remove();
    this._markRemoved();
  }

  function _callRemovalHooks() {
    for (var _iterator = _removalHooks.hooks, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var fn = _ref;

      if (fn(this, this.parentPath)) return true;
    }
  }

  function _remove() {
    if (Array.isArray(this.container)) {
      this.container.splice(this.key, 1);
      this.updateSiblingKeys(this.key, -1);
    } else {
      this._replaceWith(null);
    }
  }

  function _markRemoved() {
    this.shouldSkip = true;
    this.removed = true;
    this.node = null;
  }

  function _assertUnremoved() {
    if (this.removed) {
      throw this.buildCodeFrameError("NodePath has been removed so is read-only.");
    }
  }
});
$__System.registerDynamic("1f", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function (instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  };
});
$__System.registerDynamic("182", ["17", "1f", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var referenceVisitor = {
    ReferencedIdentifier: function ReferencedIdentifier(path, state) {
      if (path.isJSXIdentifier() && _babelTypes.react.isCompatTag(path.node.name) && !path.parentPath.isJSXMemberExpression()) {
        return;
      }

      if (path.node.name === "this") {
        var scope = path.scope;
        do {
          if (scope.path.isFunction() && !scope.path.isArrowFunctionExpression()) break;
        } while (scope = scope.parent);
        if (scope) state.breakOnScopePaths.push(scope.path);
      }

      var binding = path.scope.getBinding(path.node.name);
      if (!binding) return;

      if (binding !== state.scope.getBinding(path.node.name)) return;

      state.bindings[path.node.name] = binding;
    }
  };

  var PathHoister = function () {
    function PathHoister(path, scope) {
      (0, _classCallCheck3.default)(this, PathHoister);

      this.breakOnScopePaths = [];

      this.bindings = {};

      this.scopes = [];

      this.scope = scope;
      this.path = path;

      this.attachAfter = false;
    }

    PathHoister.prototype.isCompatibleScope = function isCompatibleScope(scope) {
      for (var key in this.bindings) {
        var binding = this.bindings[key];
        if (!scope.bindingIdentifierEquals(key, binding.identifier)) {
          return false;
        }
      }

      return true;
    };

    PathHoister.prototype.getCompatibleScopes = function getCompatibleScopes() {
      var scope = this.path.scope;
      do {
        if (this.isCompatibleScope(scope)) {
          this.scopes.push(scope);
        } else {
          break;
        }

        if (this.breakOnScopePaths.indexOf(scope.path) >= 0) {
          break;
        }
      } while (scope = scope.parent);
    };

    PathHoister.prototype.getAttachmentPath = function getAttachmentPath() {
      var path = this._getAttachmentPath();
      if (!path) return;

      var targetScope = path.scope;

      if (targetScope.path === path) {
        targetScope = path.scope.parent;
      }

      if (targetScope.path.isProgram() || targetScope.path.isFunction()) {
        for (var name in this.bindings) {
          if (!targetScope.hasOwnBinding(name)) continue;

          var binding = this.bindings[name];

          if (binding.kind === "param") continue;

          if (this.getAttachmentParentForPath(binding.path).key > path.key) {
            this.attachAfter = true;
            path = binding.path;

            for (var _iterator = binding.constantViolations, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
              var _ref;

              if (_isArray) {
                if (_i >= _iterator.length) break;
                _ref = _iterator[_i++];
              } else {
                _i = _iterator.next();
                if (_i.done) break;
                _ref = _i.value;
              }

              var violationPath = _ref;

              if (this.getAttachmentParentForPath(violationPath).key > path.key) {
                path = violationPath;
              }
            }
          }
        }
      }

      if (path.parentPath.isExportDeclaration()) {
        path = path.parentPath;
      }

      return path;
    };

    PathHoister.prototype._getAttachmentPath = function _getAttachmentPath() {
      var scopes = this.scopes;

      var scope = scopes.pop();

      if (!scope) return;

      if (scope.path.isFunction()) {
        if (this.hasOwnParamBindings(scope)) {
          if (this.scope === scope) return;

          return scope.path.get("body").get("body")[0];
        } else {
          return this.getNextScopeAttachmentParent();
        }
      } else if (scope.path.isProgram()) {
        return this.getNextScopeAttachmentParent();
      }
    };

    PathHoister.prototype.getNextScopeAttachmentParent = function getNextScopeAttachmentParent() {
      var scope = this.scopes.pop();
      if (scope) return this.getAttachmentParentForPath(scope.path);
    };

    PathHoister.prototype.getAttachmentParentForPath = function getAttachmentParentForPath(path) {
      do {
        if (!path.parentPath || Array.isArray(path.container) && path.isStatement() || path.isVariableDeclarator() && path.parentPath.node !== null && path.parentPath.node.declarations.length > 1) return path;
      } while (path = path.parentPath);
    };

    PathHoister.prototype.hasOwnParamBindings = function hasOwnParamBindings(scope) {
      for (var name in this.bindings) {
        if (!scope.hasOwnBinding(name)) continue;

        var binding = this.bindings[name];

        if (binding.kind === "param" && binding.constant) return true;
      }
      return false;
    };

    PathHoister.prototype.run = function run() {
      var node = this.path.node;
      if (node._hoisted) return;
      node._hoisted = true;

      this.path.traverse(referenceVisitor, this);

      this.getCompatibleScopes();

      var attachTo = this.getAttachmentPath();
      if (!attachTo) return;

      if (attachTo.getFunctionParent() === this.path.getFunctionParent()) return;

      var uid = attachTo.scope.generateUidIdentifier("ref");
      var declarator = t.variableDeclarator(uid, this.path.node);

      var insertFn = this.attachAfter ? "insertAfter" : "insertBefore";
      attachTo[insertFn]([attachTo.isVariableDeclarator() ? declarator : t.variableDeclaration("var", [declarator])]);

      var parent = this.path.parentPath;
      if (parent.isJSXElement() && this.path.container === parent.node.children) {
        uid = t.JSXExpressionContainer(uid);
      }

      this.path.replaceWith(uid);
    };

    return PathHoister;
  }();

  exports.default = PathHoister;
  module.exports = exports["default"];
});
$__System.registerDynamic("183", ["32", "17", "158", "182", "15a", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _typeof2 = $__require("32");

  var _typeof3 = _interopRequireDefault(_typeof2);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.insertBefore = insertBefore;
  exports._containerInsert = _containerInsert;
  exports._containerInsertBefore = _containerInsertBefore;
  exports._containerInsertAfter = _containerInsertAfter;
  exports._maybePopFromStatements = _maybePopFromStatements;
  exports.insertAfter = insertAfter;
  exports.updateSiblingKeys = updateSiblingKeys;
  exports._verifyNodeList = _verifyNodeList;
  exports.unshiftContainer = unshiftContainer;
  exports.pushContainer = pushContainer;
  exports.hoist = hoist;

  var _cache = $__require("158");

  var _hoister = $__require("182");

  var _hoister2 = _interopRequireDefault(_hoister);

  var _index = $__require("15a");

  var _index2 = _interopRequireDefault(_index);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function insertBefore(nodes) {
    this._assertUnremoved();

    nodes = this._verifyNodeList(nodes);

    if (this.parentPath.isExpressionStatement() || this.parentPath.isLabeledStatement()) {
      return this.parentPath.insertBefore(nodes);
    } else if (this.isNodeType("Expression") || this.parentPath.isForStatement() && this.key === "init") {
      if (this.node) nodes.push(this.node);
      this.replaceExpressionWithStatements(nodes);
    } else {
      this._maybePopFromStatements(nodes);
      if (Array.isArray(this.container)) {
        return this._containerInsertBefore(nodes);
      } else if (this.isStatementOrBlock()) {
        if (this.node) nodes.push(this.node);
        this._replaceWith(t.blockStatement(nodes));
      } else {
        throw new Error("We don't know what to do with this node type. " + "We were previously a Statement but we can't fit in here?");
      }
    }

    return [this];
  }

  function _containerInsert(from, nodes) {
    this.updateSiblingKeys(from, nodes.length);

    var paths = [];

    for (var i = 0; i < nodes.length; i++) {
      var to = from + i;
      var node = nodes[i];
      this.container.splice(to, 0, node);

      if (this.context) {
        var path = this.context.create(this.parent, this.container, to, this.listKey);

        if (this.context.queue) path.pushContext(this.context);
        paths.push(path);
      } else {
        paths.push(_index2.default.get({
          parentPath: this.parentPath,
          parent: this.parent,
          container: this.container,
          listKey: this.listKey,
          key: to
        }));
      }
    }

    var contexts = this._getQueueContexts();

    for (var _iterator = paths, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var _path = _ref;

      _path.setScope();
      _path.debug(function () {
        return "Inserted.";
      });

      for (var _iterator2 = contexts, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var context = _ref2;

        context.maybeQueue(_path, true);
      }
    }

    return paths;
  }

  function _containerInsertBefore(nodes) {
    return this._containerInsert(this.key, nodes);
  }

  function _containerInsertAfter(nodes) {
    return this._containerInsert(this.key + 1, nodes);
  }

  function _maybePopFromStatements(nodes) {
    var last = nodes[nodes.length - 1];
    var isIdentifier = t.isIdentifier(last) || t.isExpressionStatement(last) && t.isIdentifier(last.expression);

    if (isIdentifier && !this.isCompletionRecord()) {
      nodes.pop();
    }
  }

  function insertAfter(nodes) {
    this._assertUnremoved();

    nodes = this._verifyNodeList(nodes);

    if (this.parentPath.isExpressionStatement() || this.parentPath.isLabeledStatement()) {
      return this.parentPath.insertAfter(nodes);
    } else if (this.isNodeType("Expression") || this.parentPath.isForStatement() && this.key === "init") {
      if (this.node) {
        var temp = this.scope.generateDeclaredUidIdentifier();
        nodes.unshift(t.expressionStatement(t.assignmentExpression("=", temp, this.node)));
        nodes.push(t.expressionStatement(temp));
      }
      this.replaceExpressionWithStatements(nodes);
    } else {
      this._maybePopFromStatements(nodes);
      if (Array.isArray(this.container)) {
        return this._containerInsertAfter(nodes);
      } else if (this.isStatementOrBlock()) {
        if (this.node) nodes.unshift(this.node);
        this._replaceWith(t.blockStatement(nodes));
      } else {
        throw new Error("We don't know what to do with this node type. " + "We were previously a Statement but we can't fit in here?");
      }
    }

    return [this];
  }

  function updateSiblingKeys(fromIndex, incrementBy) {
    if (!this.parent) return;

    var paths = _cache.path.get(this.parent);
    for (var i = 0; i < paths.length; i++) {
      var path = paths[i];
      if (path.key >= fromIndex) {
        path.key += incrementBy;
      }
    }
  }

  function _verifyNodeList(nodes) {
    if (!nodes) {
      return [];
    }

    if (nodes.constructor !== Array) {
      nodes = [nodes];
    }

    for (var i = 0; i < nodes.length; i++) {
      var node = nodes[i];
      var msg = void 0;

      if (!node) {
        msg = "has falsy node";
      } else if ((typeof node === "undefined" ? "undefined" : (0, _typeof3.default)(node)) !== "object") {
        msg = "contains a non-object node";
      } else if (!node.type) {
        msg = "without a type";
      } else if (node instanceof _index2.default) {
        msg = "has a NodePath when it expected a raw object";
      }

      if (msg) {
        var type = Array.isArray(node) ? "array" : typeof node === "undefined" ? "undefined" : (0, _typeof3.default)(node);
        throw new Error("Node list " + msg + " with the index of " + i + " and type of " + type);
      }
    }

    return nodes;
  }

  function unshiftContainer(listKey, nodes) {
    this._assertUnremoved();

    nodes = this._verifyNodeList(nodes);

    var path = _index2.default.get({
      parentPath: this,
      parent: this.node,
      container: this.node[listKey],
      listKey: listKey,
      key: 0
    });

    return path.insertBefore(nodes);
  }

  function pushContainer(listKey, nodes) {
    this._assertUnremoved();

    nodes = this._verifyNodeList(nodes);

    var container = this.node[listKey];
    var path = _index2.default.get({
      parentPath: this,
      parent: this.node,
      container: container,
      listKey: listKey,
      key: container.length
    });

    return path.replaceWithMultiple(nodes);
  }

  function hoist() {
    var scope = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.scope;

    var hoister = new _hoister2.default(this, scope);
    return hoister.run();
  }
});
$__System.registerDynamic("184", ["d9", "17", "15a", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _create = $__require("d9");

  var _create2 = _interopRequireDefault(_create);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.getStatementParent = getStatementParent;
  exports.getOpposite = getOpposite;
  exports.getCompletionRecords = getCompletionRecords;
  exports.getSibling = getSibling;
  exports.getPrevSibling = getPrevSibling;
  exports.getNextSibling = getNextSibling;
  exports.getAllNextSiblings = getAllNextSiblings;
  exports.getAllPrevSiblings = getAllPrevSiblings;
  exports.get = get;
  exports._getKey = _getKey;
  exports._getPattern = _getPattern;
  exports.getBindingIdentifiers = getBindingIdentifiers;
  exports.getOuterBindingIdentifiers = getOuterBindingIdentifiers;
  exports.getBindingIdentifierPaths = getBindingIdentifierPaths;
  exports.getOuterBindingIdentifierPaths = getOuterBindingIdentifierPaths;

  var _index = $__require("15a");

  var _index2 = _interopRequireDefault(_index);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function getStatementParent() {
    var path = this;

    do {
      if (!path.parentPath || Array.isArray(path.container) && path.isStatement()) {
        break;
      } else {
        path = path.parentPath;
      }
    } while (path);

    if (path && (path.isProgram() || path.isFile())) {
      throw new Error("File/Program node, we can't possibly find a statement parent to this");
    }

    return path;
  }

  function getOpposite() {
    if (this.key === "left") {
      return this.getSibling("right");
    } else if (this.key === "right") {
      return this.getSibling("left");
    }
  }

  function getCompletionRecords() {
    var paths = [];

    var add = function add(path) {
      if (path) paths = paths.concat(path.getCompletionRecords());
    };

    if (this.isIfStatement()) {
      add(this.get("consequent"));
      add(this.get("alternate"));
    } else if (this.isDoExpression() || this.isFor() || this.isWhile()) {
      add(this.get("body"));
    } else if (this.isProgram() || this.isBlockStatement()) {
      add(this.get("body").pop());
    } else if (this.isFunction()) {
      return this.get("body").getCompletionRecords();
    } else if (this.isTryStatement()) {
      add(this.get("block"));
      add(this.get("handler"));
      add(this.get("finalizer"));
    } else {
      paths.push(this);
    }

    return paths;
  }

  function getSibling(key) {
    return _index2.default.get({
      parentPath: this.parentPath,
      parent: this.parent,
      container: this.container,
      listKey: this.listKey,
      key: key
    });
  }

  function getPrevSibling() {
    return this.getSibling(this.key - 1);
  }

  function getNextSibling() {
    return this.getSibling(this.key + 1);
  }

  function getAllNextSiblings() {
    var _key = this.key;
    var sibling = this.getSibling(++_key);
    var siblings = [];
    while (sibling.node) {
      siblings.push(sibling);
      sibling = this.getSibling(++_key);
    }
    return siblings;
  }

  function getAllPrevSiblings() {
    var _key = this.key;
    var sibling = this.getSibling(--_key);
    var siblings = [];
    while (sibling.node) {
      siblings.push(sibling);
      sibling = this.getSibling(--_key);
    }
    return siblings;
  }

  function get(key, context) {
    if (context === true) context = this.context;
    var parts = key.split(".");
    if (parts.length === 1) {
      return this._getKey(key, context);
    } else {
      return this._getPattern(parts, context);
    }
  }

  function _getKey(key, context) {
    var _this = this;

    var node = this.node;
    var container = node[key];

    if (Array.isArray(container)) {
      return container.map(function (_, i) {
        return _index2.default.get({
          listKey: key,
          parentPath: _this,
          parent: node,
          container: container,
          key: i
        }).setContext(context);
      });
    } else {
      return _index2.default.get({
        parentPath: this,
        parent: node,
        container: node,
        key: key
      }).setContext(context);
    }
  }

  function _getPattern(parts, context) {
    var path = this;
    for (var _iterator = parts, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var part = _ref;

      if (part === ".") {
        path = path.parentPath;
      } else {
        if (Array.isArray(path)) {
          path = path[part];
        } else {
          path = path.get(part, context);
        }
      }
    }
    return path;
  }

  function getBindingIdentifiers(duplicates) {
    return t.getBindingIdentifiers(this.node, duplicates);
  }

  function getOuterBindingIdentifiers(duplicates) {
    return t.getOuterBindingIdentifiers(this.node, duplicates);
  }

  function getBindingIdentifierPaths() {
    var duplicates = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
    var outerOnly = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

    var path = this;
    var search = [].concat(path);
    var ids = (0, _create2.default)(null);

    while (search.length) {
      var id = search.shift();
      if (!id) continue;
      if (!id.node) continue;

      var keys = t.getBindingIdentifiers.keys[id.node.type];

      if (id.isIdentifier()) {
        if (duplicates) {
          var _ids = ids[id.node.name] = ids[id.node.name] || [];
          _ids.push(id);
        } else {
          ids[id.node.name] = id;
        }
        continue;
      }

      if (id.isExportDeclaration()) {
        var declaration = id.get("declaration");
        if (declaration.isDeclaration()) {
          search.push(declaration);
        }
        continue;
      }

      if (outerOnly) {
        if (id.isFunctionDeclaration()) {
          search.push(id.get("id"));
          continue;
        }
        if (id.isFunctionExpression()) {
          continue;
        }
      }

      if (keys) {
        for (var i = 0; i < keys.length; i++) {
          var key = keys[i];
          var child = id.get(key);
          if (Array.isArray(child) || child.node) {
            search = search.concat(child);
          }
        }
      }
    }

    return ids;
  }

  function getOuterBindingIdentifierPaths(duplicates) {
    return this.getBindingIdentifierPaths(duplicates, true);
  }
});
$__System.registerDynamic("185", ["c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.shareCommentsWithSiblings = shareCommentsWithSiblings;
  exports.addComment = addComment;
  exports.addComments = addComments;
  function shareCommentsWithSiblings() {
    if (typeof this.key === "string") return;

    var node = this.node;
    if (!node) return;

    var trailing = node.trailingComments;
    var leading = node.leadingComments;
    if (!trailing && !leading) return;

    var prev = this.getSibling(this.key - 1);
    var next = this.getSibling(this.key + 1);

    if (!prev.node) prev = next;
    if (!next.node) next = prev;

    prev.addComments("trailing", leading);
    next.addComments("leading", trailing);
  }

  function addComment(type, content, line) {
    this.addComments(type, [{
      type: line ? "CommentLine" : "CommentBlock",
      value: content
    }]);
  }

  function addComments(type, comments) {
    if (!comments) return;

    var node = this.node;
    if (!node) return;

    var key = type + "Comments";

    if (node[key]) {
      node[key] = node[key].concat(comments);
    } else {
      node[key] = comments;
    }
  }
});
$__System.registerDynamic("15a", ["17", "1f", "186", "63", "146", "d5", "d6", "157", "11", "158", "159", "15d", "166", "17c", "17d", "17e", "17f", "181", "183", "184", "185", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _virtualTypes = $__require("186");

  var virtualTypes = _interopRequireWildcard(_virtualTypes);

  var _debug2 = $__require("63");

  var _debug3 = _interopRequireDefault(_debug2);

  var _invariant = $__require("146");

  var _invariant2 = _interopRequireDefault(_invariant);

  var _index = $__require("d5");

  var _index2 = _interopRequireDefault(_index);

  var _assign = $__require("d6");

  var _assign2 = _interopRequireDefault(_assign);

  var _scope = $__require("157");

  var _scope2 = _interopRequireDefault(_scope);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _cache = $__require("158");

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var _debug = (0, _debug3.default)("babel");

  var NodePath = function () {
    function NodePath(hub, parent) {
      (0, _classCallCheck3.default)(this, NodePath);

      this.parent = parent;
      this.hub = hub;
      this.contexts = [];
      this.data = {};
      this.shouldSkip = false;
      this.shouldStop = false;
      this.removed = false;
      this.state = null;
      this.opts = null;
      this.skipKeys = null;
      this.parentPath = null;
      this.context = null;
      this.container = null;
      this.listKey = null;
      this.inList = false;
      this.parentKey = null;
      this.key = null;
      this.node = null;
      this.scope = null;
      this.type = null;
      this.typeAnnotation = null;
    }

    NodePath.get = function get(_ref) {
      var hub = _ref.hub,
          parentPath = _ref.parentPath,
          parent = _ref.parent,
          container = _ref.container,
          listKey = _ref.listKey,
          key = _ref.key;

      if (!hub && parentPath) {
        hub = parentPath.hub;
      }

      (0, _invariant2.default)(parent, "To get a node path the parent needs to exist");

      var targetNode = container[key];

      var paths = _cache.path.get(parent) || [];
      if (!_cache.path.has(parent)) {
        _cache.path.set(parent, paths);
      }

      var path = void 0;

      for (var i = 0; i < paths.length; i++) {
        var pathCheck = paths[i];
        if (pathCheck.node === targetNode) {
          path = pathCheck;
          break;
        }
      }

      if (!path) {
        path = new NodePath(hub, parent);
        paths.push(path);
      }

      path.setup(parentPath, container, listKey, key);

      return path;
    };

    NodePath.prototype.getScope = function getScope(scope) {
      var ourScope = scope;

      if (this.isScope()) {
        ourScope = new _scope2.default(this, scope);
      }

      return ourScope;
    };

    NodePath.prototype.setData = function setData(key, val) {
      return this.data[key] = val;
    };

    NodePath.prototype.getData = function getData(key, def) {
      var val = this.data[key];
      if (!val && def) val = this.data[key] = def;
      return val;
    };

    NodePath.prototype.buildCodeFrameError = function buildCodeFrameError(msg) {
      var Error = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : SyntaxError;

      return this.hub.file.buildCodeFrameError(this.node, msg, Error);
    };

    NodePath.prototype.traverse = function traverse(visitor, state) {
      (0, _index2.default)(this.node, visitor, this.scope, state, this);
    };

    NodePath.prototype.mark = function mark(type, message) {
      this.hub.file.metadata.marked.push({
        type: type,
        message: message,
        loc: this.node.loc
      });
    };

    NodePath.prototype.set = function set(key, node) {
      t.validate(this.node, key, node);
      this.node[key] = node;
    };

    NodePath.prototype.getPathLocation = function getPathLocation() {
      var parts = [];
      var path = this;
      do {
        var key = path.key;
        if (path.inList) key = path.listKey + "[" + key + "]";
        parts.unshift(key);
      } while (path = path.parentPath);
      return parts.join(".");
    };

    NodePath.prototype.debug = function debug(buildMessage) {
      if (!_debug.enabled) return;
      _debug(this.getPathLocation() + " " + this.type + ": " + buildMessage());
    };

    return NodePath;
  }();

  exports.default = NodePath;

  (0, _assign2.default)(NodePath.prototype, $__require("159"));
  (0, _assign2.default)(NodePath.prototype, $__require("15d"));
  (0, _assign2.default)(NodePath.prototype, $__require("166"));
  (0, _assign2.default)(NodePath.prototype, $__require("17c"));
  (0, _assign2.default)(NodePath.prototype, $__require("17d"));
  (0, _assign2.default)(NodePath.prototype, $__require("17e"));
  (0, _assign2.default)(NodePath.prototype, $__require("17f"));
  (0, _assign2.default)(NodePath.prototype, $__require("181"));
  (0, _assign2.default)(NodePath.prototype, $__require("183"));
  (0, _assign2.default)(NodePath.prototype, $__require("184"));
  (0, _assign2.default)(NodePath.prototype, $__require("185"));

  var _loop2 = function _loop2() {
    if (_isArray) {
      if (_i >= _iterator.length) return "break";
      _ref2 = _iterator[_i++];
    } else {
      _i = _iterator.next();
      if (_i.done) return "break";
      _ref2 = _i.value;
    }

    var type = _ref2;

    var typeKey = "is" + type;
    NodePath.prototype[typeKey] = function (opts) {
      return t[typeKey](this.node, opts);
    };

    NodePath.prototype["assert" + type] = function (opts) {
      if (!this[typeKey](opts)) {
        throw new TypeError("Expected node path of type " + type);
      }
    };
  };

  for (var _iterator = t.TYPES, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
    var _ref2;

    var _ret2 = _loop2();

    if (_ret2 === "break") break;
  }

  var _loop = function _loop(type) {
    if (type[0] === "_") return "continue";
    if (t.TYPES.indexOf(type) < 0) t.TYPES.push(type);

    var virtualType = virtualTypes[type];

    NodePath.prototype["is" + type] = function (opts) {
      return virtualType.checkPath(this, opts);
    };
  };

  for (var type in virtualTypes) {
    var _ret = _loop(type);

    if (_ret === "continue") continue;
  }
  module.exports = exports["default"];
});
$__System.registerDynamic("187", ["17", "1f", "15a", "11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  var _path2 = $__require("15a");

  var _path3 = _interopRequireDefault(_path2);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var testing = "production" === "test";

  var TraversalContext = function () {
    function TraversalContext(scope, opts, state, parentPath) {
      (0, _classCallCheck3.default)(this, TraversalContext);
      this.queue = null;

      this.parentPath = parentPath;
      this.scope = scope;
      this.state = state;
      this.opts = opts;
    }

    TraversalContext.prototype.shouldVisit = function shouldVisit(node) {
      var opts = this.opts;
      if (opts.enter || opts.exit) return true;

      if (opts[node.type]) return true;

      var keys = t.VISITOR_KEYS[node.type];
      if (!keys || !keys.length) return false;

      for (var _iterator = keys, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var key = _ref;

        if (node[key]) return true;
      }

      return false;
    };

    TraversalContext.prototype.create = function create(node, obj, key, listKey) {
      return _path3.default.get({
        parentPath: this.parentPath,
        parent: node,
        container: obj,
        key: key,
        listKey: listKey
      });
    };

    TraversalContext.prototype.maybeQueue = function maybeQueue(path, notPriority) {
      if (this.trap) {
        throw new Error("Infinite cycle detected");
      }

      if (this.queue) {
        if (notPriority) {
          this.queue.push(path);
        } else {
          this.priorityQueue.push(path);
        }
      }
    };

    TraversalContext.prototype.visitMultiple = function visitMultiple(container, parent, listKey) {
      if (container.length === 0) return false;

      var queue = [];

      for (var key = 0; key < container.length; key++) {
        var node = container[key];
        if (node && this.shouldVisit(node)) {
          queue.push(this.create(parent, container, key, listKey));
        }
      }

      return this.visitQueue(queue);
    };

    TraversalContext.prototype.visitSingle = function visitSingle(node, key) {
      if (this.shouldVisit(node[key])) {
        return this.visitQueue([this.create(node, node, key)]);
      } else {
        return false;
      }
    };

    TraversalContext.prototype.visitQueue = function visitQueue(queue) {
      this.queue = queue;
      this.priorityQueue = [];

      var visited = [];
      var stop = false;

      for (var _iterator2 = queue, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var path = _ref2;

        path.resync();

        if (path.contexts.length === 0 || path.contexts[path.contexts.length - 1] !== this) {
          path.pushContext(this);
        }

        if (path.key === null) continue;

        if (testing && queue.length >= 10000) {
          this.trap = true;
        }

        if (visited.indexOf(path.node) >= 0) continue;
        visited.push(path.node);

        if (path.visit()) {
          stop = true;
          break;
        }

        if (this.priorityQueue.length) {
          stop = this.visitQueue(this.priorityQueue);
          this.priorityQueue = [];
          this.queue = queue;
          if (stop) break;
        }
      }

      for (var _iterator3 = queue, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
        var _ref3;

        if (_isArray3) {
          if (_i3 >= _iterator3.length) break;
          _ref3 = _iterator3[_i3++];
        } else {
          _i3 = _iterator3.next();
          if (_i3.done) break;
          _ref3 = _i3.value;
        }

        var _path = _ref3;

        _path.popContext();
      }

      this.queue = null;

      return stop;
    };

    TraversalContext.prototype.visit = function visit(node, key) {
      var nodes = node[key];
      if (!nodes) return false;

      if (Array.isArray(nodes)) {
        return this.visitMultiple(nodes, node, key);
      } else {
        return this.visitSingle(node, key);
      }
    };

    return TraversalContext;
  }();

  exports.default = TraversalContext;
  module.exports = exports["default"];
});
$__System.registerDynamic("186", ["11", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.Flow = exports.Pure = exports.Generated = exports.User = exports.Var = exports.BlockScoped = exports.Referenced = exports.Scope = exports.Expression = exports.Statement = exports.BindingIdentifier = exports.ReferencedMemberExpression = exports.ReferencedIdentifier = undefined;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  var ReferencedIdentifier = exports.ReferencedIdentifier = {
    types: ["Identifier", "JSXIdentifier"],
    checkPath: function checkPath(_ref, opts) {
      var node = _ref.node,
          parent = _ref.parent;

      if (!t.isIdentifier(node, opts) && !t.isJSXMemberExpression(parent, opts)) {
        if (t.isJSXIdentifier(node, opts)) {
          if (_babelTypes.react.isCompatTag(node.name)) return false;
        } else {
          return false;
        }
      }

      return t.isReferenced(node, parent);
    }
  };

  var ReferencedMemberExpression = exports.ReferencedMemberExpression = {
    types: ["MemberExpression"],
    checkPath: function checkPath(_ref2) {
      var node = _ref2.node,
          parent = _ref2.parent;

      return t.isMemberExpression(node) && t.isReferenced(node, parent);
    }
  };

  var BindingIdentifier = exports.BindingIdentifier = {
    types: ["Identifier"],
    checkPath: function checkPath(_ref3) {
      var node = _ref3.node,
          parent = _ref3.parent;

      return t.isIdentifier(node) && t.isBinding(node, parent);
    }
  };

  var Statement = exports.Statement = {
    types: ["Statement"],
    checkPath: function checkPath(_ref4) {
      var node = _ref4.node,
          parent = _ref4.parent;

      if (t.isStatement(node)) {
        if (t.isVariableDeclaration(node)) {
          if (t.isForXStatement(parent, { left: node })) return false;
          if (t.isForStatement(parent, { init: node })) return false;
        }

        return true;
      } else {
        return false;
      }
    }
  };

  var Expression = exports.Expression = {
    types: ["Expression"],
    checkPath: function checkPath(path) {
      if (path.isIdentifier()) {
        return path.isReferencedIdentifier();
      } else {
        return t.isExpression(path.node);
      }
    }
  };

  var Scope = exports.Scope = {
    types: ["Scopable"],
    checkPath: function checkPath(path) {
      return t.isScope(path.node, path.parent);
    }
  };

  var Referenced = exports.Referenced = {
    checkPath: function checkPath(path) {
      return t.isReferenced(path.node, path.parent);
    }
  };

  var BlockScoped = exports.BlockScoped = {
    checkPath: function checkPath(path) {
      return t.isBlockScoped(path.node);
    }
  };

  var Var = exports.Var = {
    types: ["VariableDeclaration"],
    checkPath: function checkPath(path) {
      return t.isVar(path.node);
    }
  };

  var User = exports.User = {
    checkPath: function checkPath(path) {
      return path.node && !!path.node.loc;
    }
  };

  var Generated = exports.Generated = {
    checkPath: function checkPath(path) {
      return !path.isUser();
    }
  };

  var Pure = exports.Pure = {
    checkPath: function checkPath(path, opts) {
      return path.scope.isPure(path.node, opts);
    }
  };

  var Flow = exports.Flow = {
    types: ["Flow", "ImportDeclaration", "ExportDeclaration", "ImportSpecifier"],
    checkPath: function checkPath(_ref5) {
      var node = _ref5.node;

      if (t.isFlow(node)) {
        return true;
      } else if (t.isImportDeclaration(node)) {
        return node.importKind === "type" || node.importKind === "typeof";
      } else if (t.isExportDeclaration(node)) {
        return node.exportKind === "type";
      } else if (t.isImportSpecifier(node)) {
        return node.importKind === "type" || node.importKind === "typeof";
      } else {
        return false;
      }
    }
  };
});
$__System.registerDynamic("188", ["32", "15", "17", "186", "f", "11", "d3", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _typeof2 = $__require("32");

  var _typeof3 = _interopRequireDefault(_typeof2);

  var _keys = $__require("15");

  var _keys2 = _interopRequireDefault(_keys);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.explode = explode;
  exports.verify = verify;
  exports.merge = merge;

  var _virtualTypes = $__require("186");

  var virtualTypes = _interopRequireWildcard(_virtualTypes);

  var _babelMessages = $__require("f");

  var messages = _interopRequireWildcard(_babelMessages);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _clone = $__require("d3");

  var _clone2 = _interopRequireDefault(_clone);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function explode(visitor) {
    if (visitor._exploded) return visitor;
    visitor._exploded = true;

    for (var nodeType in visitor) {
      if (shouldIgnoreKey(nodeType)) continue;

      var parts = nodeType.split("|");
      if (parts.length === 1) continue;

      var fns = visitor[nodeType];
      delete visitor[nodeType];

      for (var _iterator = parts, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var part = _ref;

        visitor[part] = fns;
      }
    }

    verify(visitor);

    delete visitor.__esModule;

    ensureEntranceObjects(visitor);

    ensureCallbackArrays(visitor);

    for (var _iterator2 = (0, _keys2.default)(visitor), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
      var _ref2;

      if (_isArray2) {
        if (_i2 >= _iterator2.length) break;
        _ref2 = _iterator2[_i2++];
      } else {
        _i2 = _iterator2.next();
        if (_i2.done) break;
        _ref2 = _i2.value;
      }

      var _nodeType3 = _ref2;

      if (shouldIgnoreKey(_nodeType3)) continue;

      var wrapper = virtualTypes[_nodeType3];
      if (!wrapper) continue;

      var _fns2 = visitor[_nodeType3];
      for (var type in _fns2) {
        _fns2[type] = wrapCheck(wrapper, _fns2[type]);
      }

      delete visitor[_nodeType3];

      if (wrapper.types) {
        for (var _iterator4 = wrapper.types, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
          var _ref4;

          if (_isArray4) {
            if (_i4 >= _iterator4.length) break;
            _ref4 = _iterator4[_i4++];
          } else {
            _i4 = _iterator4.next();
            if (_i4.done) break;
            _ref4 = _i4.value;
          }

          var _type = _ref4;

          if (visitor[_type]) {
            mergePair(visitor[_type], _fns2);
          } else {
            visitor[_type] = _fns2;
          }
        }
      } else {
        mergePair(visitor, _fns2);
      }
    }

    for (var _nodeType in visitor) {
      if (shouldIgnoreKey(_nodeType)) continue;

      var _fns = visitor[_nodeType];

      var aliases = t.FLIPPED_ALIAS_KEYS[_nodeType];

      var deprecratedKey = t.DEPRECATED_KEYS[_nodeType];
      if (deprecratedKey) {
        console.trace("Visitor defined for " + _nodeType + " but it has been renamed to " + deprecratedKey);
        aliases = [deprecratedKey];
      }

      if (!aliases) continue;

      delete visitor[_nodeType];

      for (var _iterator3 = aliases, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
        var _ref3;

        if (_isArray3) {
          if (_i3 >= _iterator3.length) break;
          _ref3 = _iterator3[_i3++];
        } else {
          _i3 = _iterator3.next();
          if (_i3.done) break;
          _ref3 = _i3.value;
        }

        var alias = _ref3;

        var existing = visitor[alias];
        if (existing) {
          mergePair(existing, _fns);
        } else {
          visitor[alias] = (0, _clone2.default)(_fns);
        }
      }
    }

    for (var _nodeType2 in visitor) {
      if (shouldIgnoreKey(_nodeType2)) continue;

      ensureCallbackArrays(visitor[_nodeType2]);
    }

    return visitor;
  }

  function verify(visitor) {
    if (visitor._verified) return;

    if (typeof visitor === "function") {
      throw new Error(messages.get("traverseVerifyRootFunction"));
    }

    for (var nodeType in visitor) {
      if (nodeType === "enter" || nodeType === "exit") {
        validateVisitorMethods(nodeType, visitor[nodeType]);
      }

      if (shouldIgnoreKey(nodeType)) continue;

      if (t.TYPES.indexOf(nodeType) < 0) {
        throw new Error(messages.get("traverseVerifyNodeType", nodeType));
      }

      var visitors = visitor[nodeType];
      if ((typeof visitors === "undefined" ? "undefined" : (0, _typeof3.default)(visitors)) === "object") {
        for (var visitorKey in visitors) {
          if (visitorKey === "enter" || visitorKey === "exit") {
            validateVisitorMethods(nodeType + "." + visitorKey, visitors[visitorKey]);
          } else {
            throw new Error(messages.get("traverseVerifyVisitorProperty", nodeType, visitorKey));
          }
        }
      }
    }

    visitor._verified = true;
  }

  function validateVisitorMethods(path, val) {
    var fns = [].concat(val);
    for (var _iterator5 = fns, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
      var _ref5;

      if (_isArray5) {
        if (_i5 >= _iterator5.length) break;
        _ref5 = _iterator5[_i5++];
      } else {
        _i5 = _iterator5.next();
        if (_i5.done) break;
        _ref5 = _i5.value;
      }

      var fn = _ref5;

      if (typeof fn !== "function") {
        throw new TypeError("Non-function found defined in " + path + " with type " + (typeof fn === "undefined" ? "undefined" : (0, _typeof3.default)(fn)));
      }
    }
  }

  function merge(visitors) {
    var states = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
    var wrapper = arguments[2];

    var rootVisitor = {};

    for (var i = 0; i < visitors.length; i++) {
      var visitor = visitors[i];
      var state = states[i];

      explode(visitor);

      for (var type in visitor) {
        var visitorType = visitor[type];

        if (state || wrapper) {
          visitorType = wrapWithStateOrWrapper(visitorType, state, wrapper);
        }

        var nodeVisitor = rootVisitor[type] = rootVisitor[type] || {};
        mergePair(nodeVisitor, visitorType);
      }
    }

    return rootVisitor;
  }

  function wrapWithStateOrWrapper(oldVisitor, state, wrapper) {
    var newVisitor = {};

    var _loop = function _loop(key) {
      var fns = oldVisitor[key];

      if (!Array.isArray(fns)) return "continue";

      fns = fns.map(function (fn) {
        var newFn = fn;

        if (state) {
          newFn = function newFn(path) {
            return fn.call(state, path, state);
          };
        }

        if (wrapper) {
          newFn = wrapper(state.key, key, newFn);
        }

        return newFn;
      });

      newVisitor[key] = fns;
    };

    for (var key in oldVisitor) {
      var _ret = _loop(key);

      if (_ret === "continue") continue;
    }

    return newVisitor;
  }

  function ensureEntranceObjects(obj) {
    for (var key in obj) {
      if (shouldIgnoreKey(key)) continue;

      var fns = obj[key];
      if (typeof fns === "function") {
        obj[key] = { enter: fns };
      }
    }
  }

  function ensureCallbackArrays(obj) {
    if (obj.enter && !Array.isArray(obj.enter)) obj.enter = [obj.enter];
    if (obj.exit && !Array.isArray(obj.exit)) obj.exit = [obj.exit];
  }

  function wrapCheck(wrapper, fn) {
    var newFn = function newFn(path) {
      if (wrapper.checkPath(path)) {
        return fn.apply(this, arguments);
      }
    };
    newFn.toString = function () {
      return fn.toString();
    };
    return newFn;
  }

  function shouldIgnoreKey(key) {
    if (key[0] === "_") return true;

    if (key === "enter" || key === "exit" || key === "shouldSkip") return true;

    if (key === "blacklist" || key === "noScope" || key === "skipKeys") return true;

    return false;
  }

  function mergePair(dest, src) {
    for (var key in src) {
      dest[key] = [].concat(dest[key] || [], src[key]);
    }
  }
});
$__System.registerDynamic("f", ["60", "a9"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.MESSAGES = undefined;

  var _stringify = $__require("60");

  var _stringify2 = _interopRequireDefault(_stringify);

  exports.get = get;
  exports.parseArgs = parseArgs;

  var _util = $__require("a9");

  var util = _interopRequireWildcard(_util);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var MESSAGES = exports.MESSAGES = {
    tailCallReassignmentDeopt: "Function reference has been reassigned, so it will probably be dereferenced, therefore we can't optimise this with confidence",
    classesIllegalBareSuper: "Illegal use of bare super",
    classesIllegalSuperCall: "Direct super call is illegal in non-constructor, use super.$1() instead",
    scopeDuplicateDeclaration: "Duplicate declaration $1",
    settersNoRest: "Setters aren't allowed to have a rest",
    noAssignmentsInForHead: "No assignments allowed in for-in/of head",
    expectedMemberExpressionOrIdentifier: "Expected type MemberExpression or Identifier",
    invalidParentForThisNode: "We don't know how to handle this node within the current parent - please open an issue",
    readOnly: "$1 is read-only",
    unknownForHead: "Unknown node type $1 in ForStatement",
    didYouMean: "Did you mean $1?",
    codeGeneratorDeopt: "Note: The code generator has deoptimised the styling of $1 as it exceeds the max of $2.",
    missingTemplatesDirectory: "no templates directory - this is most likely the result of a broken `npm publish`. Please report to https://github.com/babel/babel/issues",
    unsupportedOutputType: "Unsupported output type $1",
    illegalMethodName: "Illegal method name $1",
    lostTrackNodePath: "We lost track of this node's position, likely because the AST was directly manipulated",

    modulesIllegalExportName: "Illegal export $1",
    modulesDuplicateDeclarations: "Duplicate module declarations with the same source but in different scopes",

    undeclaredVariable: "Reference to undeclared variable $1",
    undeclaredVariableType: "Referencing a type alias outside of a type annotation",
    undeclaredVariableSuggestion: "Reference to undeclared variable $1 - did you mean $2?",

    traverseNeedsParent: "You must pass a scope and parentPath unless traversing a Program/File. Instead of that you tried to traverse a $1 node without passing scope and parentPath.",
    traverseVerifyRootFunction: "You passed `traverse()` a function when it expected a visitor object, are you sure you didn't mean `{ enter: Function }`?",
    traverseVerifyVisitorProperty: "You passed `traverse()` a visitor object with the property $1 that has the invalid property $2",
    traverseVerifyNodeType: "You gave us a visitor for the node type $1 but it's not a valid type",

    pluginNotObject: "Plugin $2 specified in $1 was expected to return an object when invoked but returned $3",
    pluginNotFunction: "Plugin $2 specified in $1 was expected to return a function but returned $3",
    pluginUnknown: "Unknown plugin $1 specified in $2 at $3, attempted to resolve relative to $4",
    pluginInvalidProperty: "Plugin $2 specified in $1 provided an invalid property of $3"
  };

  function get(key) {
    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      args[_key - 1] = arguments[_key];
    }

    var msg = MESSAGES[key];
    if (!msg) throw new ReferenceError("Unknown message " + (0, _stringify2.default)(key));

    args = parseArgs(args);

    return msg.replace(/\$(\d+)/g, function (str, i) {
      return args[i - 1];
    });
  }

  function parseArgs(args) {
    return args.map(function (val) {
      if (val != null && val.inspect) {
        return val.inspect();
      } else {
        try {
          return (0, _stringify2.default)(val) || val + "";
        } catch (e) {
          return util.inspect(val);
        }
      }
    });
  }
});
$__System.registerDynamic('189', ['18a', '50', '7f'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var baseGetTag = $__require('18a'),
        isArray = $__require('50'),
        isObjectLike = $__require('7f');

    /** `Object#toString` result references. */
    var stringTag = '[object String]';

    /**
     * Checks if `value` is classified as a `String` primitive or object.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a string, else `false`.
     * @example
     *
     * _.isString('abc');
     * // => true
     *
     * _.isString(1);
     * // => false
     */
    function isString(value) {
        return typeof value == 'string' || !isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag;
    }

    module.exports = isString;
});
$__System.registerDynamic('94', ['18a', '7f'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var baseGetTag = $__require('18a'),
        isObjectLike = $__require('7f');

    /** `Object#toString` result references. */
    var symbolTag = '[object Symbol]';

    /**
     * Checks if `value` is classified as a `Symbol` primitive or object.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
     * @example
     *
     * _.isSymbol(Symbol.iterator);
     * // => true
     *
     * _.isSymbol('abc');
     * // => false
     */
    function isSymbol(value) {
        return typeof value == 'symbol' || isObjectLike(value) && baseGetTag(value) == symbolTag;
    }

    module.exports = isSymbol;
});
$__System.registerDynamic('18b', ['85', '94'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isObject = $__require('85'),
      isSymbol = $__require('94');

  /** Used as references for various `Number` constants. */
  var NAN = 0 / 0;

  /** Used to match leading and trailing whitespace. */
  var reTrim = /^\s+|\s+$/g;

  /** Used to detect bad signed hexadecimal string values. */
  var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;

  /** Used to detect binary string values. */
  var reIsBinary = /^0b[01]+$/i;

  /** Used to detect octal string values. */
  var reIsOctal = /^0o[0-7]+$/i;

  /** Built-in method references without a dependency on `root`. */
  var freeParseInt = parseInt;

  /**
   * Converts `value` to a number.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to process.
   * @returns {number} Returns the number.
   * @example
   *
   * _.toNumber(3.2);
   * // => 3.2
   *
   * _.toNumber(Number.MIN_VALUE);
   * // => 5e-324
   *
   * _.toNumber(Infinity);
   * // => Infinity
   *
   * _.toNumber('3.2');
   * // => 3.2
   */
  function toNumber(value) {
    if (typeof value == 'number') {
      return value;
    }
    if (isSymbol(value)) {
      return NAN;
    }
    if (isObject(value)) {
      var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
      value = isObject(other) ? other + '' : other;
    }
    if (typeof value != 'string') {
      return value === 0 ? value : +value;
    }
    value = value.replace(reTrim, '');
    var isBinary = reIsBinary.test(value);
    return isBinary || reIsOctal.test(value) ? freeParseInt(value.slice(2), isBinary ? 2 : 8) : reIsBadHex.test(value) ? NAN : +value;
  }

  module.exports = toNumber;
});
$__System.registerDynamic('18c', ['18b'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var toNumber = $__require('18b');

  /** Used as references for various `Number` constants. */
  var INFINITY = 1 / 0,
      MAX_INTEGER = 1.7976931348623157e+308;

  /**
   * Converts `value` to a finite number.
   *
   * @static
   * @memberOf _
   * @since 4.12.0
   * @category Lang
   * @param {*} value The value to convert.
   * @returns {number} Returns the converted number.
   * @example
   *
   * _.toFinite(3.2);
   * // => 3.2
   *
   * _.toFinite(Number.MIN_VALUE);
   * // => 5e-324
   *
   * _.toFinite(Infinity);
   * // => 1.7976931348623157e+308
   *
   * _.toFinite('3.2');
   * // => 3.2
   */
  function toFinite(value) {
    if (!value) {
      return value === 0 ? value : 0;
    }
    value = toNumber(value);
    if (value === INFINITY || value === -INFINITY) {
      var sign = value < 0 ? -1 : 1;
      return sign * MAX_INTEGER;
    }
    return value === value ? value : 0;
  }

  module.exports = toFinite;
});
$__System.registerDynamic('3e', ['18c'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var toFinite = $__require('18c');

  /**
   * Converts `value` to an integer.
   *
   * **Note:** This method is loosely based on
   * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to convert.
   * @returns {number} Returns the converted integer.
   * @example
   *
   * _.toInteger(3.2);
   * // => 3
   *
   * _.toInteger(Number.MIN_VALUE);
   * // => 0
   *
   * _.toInteger(Infinity);
   * // => 1.7976931348623157e+308
   *
   * _.toInteger('3.2');
   * // => 3
   */
  function toInteger(value) {
    var result = toFinite(value),
        remainder = result % 1;

    return result === result ? remainder ? result - remainder : result : 0;
  }

  module.exports = toInteger;
});
$__System.registerDynamic("4e", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * A specialized version of `_.map` for arrays without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the new mapped array.
   */
  function arrayMap(array, iteratee) {
    var index = -1,
        length = array == null ? 0 : array.length,
        result = Array(length);

    while (++index < length) {
      result[index] = iteratee(array[index], index, array);
    }
    return result;
  }

  module.exports = arrayMap;
});
$__System.registerDynamic('18d', ['4e'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var arrayMap = $__require('4e');

  /**
   * The base implementation of `_.values` and `_.valuesIn` which creates an
   * array of `object` property values corresponding to the property names
   * of `props`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array} props The property names to get values for.
   * @returns {Object} Returns the array of property values.
   */
  function baseValues(object, props) {
    return arrayMap(props, function (key) {
      return object[key];
    });
  }

  module.exports = baseValues;
});
$__System.registerDynamic('18e', ['18d', '42'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseValues = $__require('18d'),
      keys = $__require('42');

  /**
   * Creates an array of the own enumerable string keyed property values of `object`.
   *
   * **Note:** Non-object values are coerced to objects.
   *
   * @static
   * @since 0.1.0
   * @memberOf _
   * @category Object
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of property values.
   * @example
   *
   * function Foo() {
   *   this.a = 1;
   *   this.b = 2;
   * }
   *
   * Foo.prototype.c = 3;
   *
   * _.values(new Foo);
   * // => [1, 2] (iteration order is not guaranteed)
   *
   * _.values('hi');
   * // => ['h', 'i']
   */
  function values(object) {
    return object == null ? [] : baseValues(object, keys(object));
  }

  module.exports = values;
});
$__System.registerDynamic('aa', ['12c', '41', '189', '3e', '18e'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseIndexOf = $__require('12c'),
      isArrayLike = $__require('41'),
      isString = $__require('189'),
      toInteger = $__require('3e'),
      values = $__require('18e');

  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeMax = Math.max;

  /**
   * Checks if `value` is in `collection`. If `collection` is a string, it's
   * checked for a substring of `value`, otherwise
   * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
   * is used for equality comparisons. If `fromIndex` is negative, it's used as
   * the offset from the end of `collection`.
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Collection
   * @param {Array|Object|string} collection The collection to inspect.
   * @param {*} value The value to search for.
   * @param {number} [fromIndex=0] The index to search from.
   * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
   * @returns {boolean} Returns `true` if `value` is found, else `false`.
   * @example
   *
   * _.includes([1, 2, 3], 1);
   * // => true
   *
   * _.includes([1, 2, 3], 1, 2);
   * // => false
   *
   * _.includes({ 'a': 1, 'b': 2 }, 1);
   * // => true
   *
   * _.includes('abcd', 'bc');
   * // => true
   */
  function includes(collection, value, fromIndex, guard) {
    collection = isArrayLike(collection) ? collection : values(collection);
    fromIndex = fromIndex && !guard ? toInteger(fromIndex) : 0;

    var length = collection.length;
    if (fromIndex < 0) {
      fromIndex = nativeMax(length + fromIndex, 0);
    }
    return isString(collection) ? fromIndex <= length && collection.indexOf(value, fromIndex) > -1 : !!length && baseIndexOf(collection, value, fromIndex) > -1;
  }

  module.exports = includes;
});
$__System.registerDynamic('cc', ['18f', '190', '191', '192', '193', '194', 'c'], true, function ($__require, exports, module) {
  'use strict';
  // 19.1.2.1 Object.assign(target, source, ...)

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var getKeys = $__require('18f'),
      gOPS = $__require('190'),
      pIE = $__require('191'),
      toObject = $__require('192'),
      IObject = $__require('193'),
      $assign = Object.assign;

  // should work with symbols and should have deterministic property order (V8 bug)
  module.exports = !$assign || $__require('194')(function () {
    var A = {},
        B = {},
        S = Symbol(),
        K = 'abcdefghijklmnopqrst';
    A[S] = 7;
    K.split('').forEach(function (k) {
      B[k] = k;
    });
    return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
  }) ? function assign(target, source) {
    // eslint-disable-line no-unused-vars
    var T = toObject(target),
        aLen = arguments.length,
        index = 1,
        getSymbols = gOPS.f,
        isEnum = pIE.f;
    while (aLen > index) {
      var S = IObject(arguments[index++]),
          keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S),
          length = keys.length,
          j = 0,
          key;
      while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];
    }return T;
  } : $assign;
});
$__System.registerDynamic('34', ['16e', '174', '110', '10f', '16f', '171', '195', '196', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var redefineAll = $__require('16e'),
      getWeak = $__require('174').getWeak,
      anObject = $__require('110'),
      isObject = $__require('10f'),
      anInstance = $__require('16f'),
      forOf = $__require('171'),
      createArrayMethod = $__require('195'),
      $has = $__require('196'),
      arrayFind = createArrayMethod(5),
      arrayFindIndex = createArrayMethod(6),
      id = 0;

  // fallback for uncaught frozen keys
  var uncaughtFrozenStore = function (that) {
    return that._l || (that._l = new UncaughtFrozenStore());
  };
  var UncaughtFrozenStore = function () {
    this.a = [];
  };
  var findUncaughtFrozen = function (store, key) {
    return arrayFind(store.a, function (it) {
      return it[0] === key;
    });
  };
  UncaughtFrozenStore.prototype = {
    get: function (key) {
      var entry = findUncaughtFrozen(this, key);
      if (entry) return entry[1];
    },
    has: function (key) {
      return !!findUncaughtFrozen(this, key);
    },
    set: function (key, value) {
      var entry = findUncaughtFrozen(this, key);
      if (entry) entry[1] = value;else this.a.push([key, value]);
    },
    'delete': function (key) {
      var index = arrayFindIndex(this.a, function (it) {
        return it[0] === key;
      });
      if (~index) this.a.splice(index, 1);
      return !!~index;
    }
  };

  module.exports = {
    getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {
      var C = wrapper(function (that, iterable) {
        anInstance(that, C, NAME, '_i');
        that._i = id++; // collection id
        that._l = undefined; // leak store for uncaught frozen objects
        if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
      });
      redefineAll(C.prototype, {
        // 23.3.3.2 WeakMap.prototype.delete(key)
        // 23.4.3.3 WeakSet.prototype.delete(value)
        'delete': function (key) {
          if (!isObject(key)) return false;
          var data = getWeak(key);
          if (data === true) return uncaughtFrozenStore(this)['delete'](key);
          return data && $has(data, this._i) && delete data[this._i];
        },
        // 23.3.3.4 WeakMap.prototype.has(key)
        // 23.4.3.4 WeakSet.prototype.has(value)
        has: function has(key) {
          if (!isObject(key)) return false;
          var data = getWeak(key);
          if (data === true) return uncaughtFrozenStore(this).has(key);
          return data && $has(data, this._i);
        }
      });
      return C;
    },
    def: function (that, key, value) {
      var data = getWeak(anObject(key), true);
      if (data === true) uncaughtFrozenStore(that).set(key, value);else data[that._i] = value;
      return that;
    },
    ufstore: uncaughtFrozenStore
  };
});
$__System.registerDynamic('16e', ['197', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var hide = $__require('197');
  module.exports = function (target, src, safe) {
    for (var key in src) {
      if (safe && target[key]) target[key] = src[key];else hide(target, key, src[key]);
    }return target;
  };
});
$__System.registerDynamic('198', ['110', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // call something on iterator step with safe closing on error
  var anObject = $__require('110');
  module.exports = function (iterator, fn, value, entries) {
    try {
      return entries ? fn(anObject(value)[0], value[1]) : fn(value);
      // 7.4.6 IteratorClose(iterator, completion)
    } catch (e) {
      var ret = iterator['return'];
      if (ret !== undefined) anObject(ret.call(iterator));
      throw e;
    }
  };
});
$__System.registerDynamic('199', ['19a', '16b', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // check on default Array iterator
  var Iterators = $__require('19a'),
      ITERATOR = $__require('16b')('iterator'),
      ArrayProto = Array.prototype;

  module.exports = function (it) {
    return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);
  };
});
$__System.registerDynamic('171', ['111', '198', '199', '110', '19b', '19c', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var ctx = $__require('111'),
      call = $__require('198'),
      isArrayIter = $__require('199'),
      anObject = $__require('110'),
      toLength = $__require('19b'),
      getIterFn = $__require('19c'),
      BREAK = {},
      RETURN = {};
  var exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {
    var iterFn = ITERATOR ? function () {
      return iterable;
    } : getIterFn(iterable),
        f = ctx(fn, that, entries ? 2 : 1),
        index = 0,
        length,
        step,
        iterator,
        result;
    if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');
    // fast case for arrays with default iterator
    if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {
      result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
      if (result === BREAK || result === RETURN) return result;
    } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {
      result = call(iterator, f, step.value, entries);
      if (result === BREAK || result === RETURN) return result;
    }
  };
  exports.BREAK = BREAK;
  exports.RETURN = RETURN;
});
$__System.registerDynamic('16f', ['c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  module.exports = function (it, Constructor, name, forbiddenField) {
    if (!(it instanceof Constructor) || forbiddenField !== undefined && forbiddenField in it) {
      throw TypeError(name + ': incorrect invocation!');
    }return it;
  };
});
$__System.registerDynamic('19d', ['10f', '19e', '16b', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var isObject = $__require('10f'),
      isArray = $__require('19e'),
      SPECIES = $__require('16b')('species');

  module.exports = function (original) {
    var C;
    if (isArray(original)) {
      C = original.constructor;
      // cross-realm fallback
      if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;
      if (isObject(C)) {
        C = C[SPECIES];
        if (C === null) C = undefined;
      }
    }return C === undefined ? Array : C;
  };
});
$__System.registerDynamic('19f', ['19d', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 9.4.2.3 ArraySpeciesCreate(originalArray, length)
  var speciesConstructor = $__require('19d');

  module.exports = function (original, length) {
    return new (speciesConstructor(original))(length);
  };
});
$__System.registerDynamic('195', ['111', '193', '192', '19b', '19f', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 0 -> Array#forEach
  // 1 -> Array#map
  // 2 -> Array#filter
  // 3 -> Array#some
  // 4 -> Array#every
  // 5 -> Array#find
  // 6 -> Array#findIndex
  var ctx = $__require('111'),
      IObject = $__require('193'),
      toObject = $__require('192'),
      toLength = $__require('19b'),
      asc = $__require('19f');
  module.exports = function (TYPE, $create) {
    var IS_MAP = TYPE == 1,
        IS_FILTER = TYPE == 2,
        IS_SOME = TYPE == 3,
        IS_EVERY = TYPE == 4,
        IS_FIND_INDEX = TYPE == 6,
        NO_HOLES = TYPE == 5 || IS_FIND_INDEX,
        create = $create || asc;
    return function ($this, callbackfn, that) {
      var O = toObject($this),
          self = IObject(O),
          f = ctx(callbackfn, that, 3),
          length = toLength(self.length),
          index = 0,
          result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined,
          val,
          res;
      for (; length > index; index++) if (NO_HOLES || index in self) {
        val = self[index];
        res = f(val, index, O);
        if (TYPE) {
          if (IS_MAP) result[index] = res; // map
          else if (res) switch (TYPE) {
              case 3:
                return true; // some
              case 5:
                return val; // find
              case 6:
                return index; // findIndex
              case 2:
                result.push(val); // filter
            } else if (IS_EVERY) return false; // every
        }
      }
      return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
    };
  };
});
$__System.registerDynamic('35', ['168', 'cb', '174', '194', '197', '16e', '171', '16f', '10f', '1a0', '169', '195', '16a', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var global = $__require('168'),
      $export = $__require('cb'),
      meta = $__require('174'),
      fails = $__require('194'),
      hide = $__require('197'),
      redefineAll = $__require('16e'),
      forOf = $__require('171'),
      anInstance = $__require('16f'),
      isObject = $__require('10f'),
      setToStringTag = $__require('1a0'),
      dP = $__require('169').f,
      each = $__require('195')(0),
      DESCRIPTORS = $__require('16a');

  module.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {
    var Base = global[NAME],
        C = Base,
        ADDER = IS_MAP ? 'set' : 'add',
        proto = C && C.prototype,
        O = {};
    if (!DESCRIPTORS || typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () {
      new C().entries().next();
    }))) {
      // create collection constructor
      C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
      redefineAll(C.prototype, methods);
      meta.NEED = true;
    } else {
      C = wrapper(function (target, iterable) {
        anInstance(target, C, NAME, '_c');
        target._c = new Base();
        if (iterable != undefined) forOf(iterable, IS_MAP, target[ADDER], target);
      });
      each('add,clear,delete,forEach,get,has,set,keys,values,entries,toJSON'.split(','), function (KEY) {
        var IS_ADDER = KEY == 'add' || KEY == 'set';
        if (KEY in proto && !(IS_WEAK && KEY == 'clear')) hide(C.prototype, KEY, function (a, b) {
          anInstance(this, C, KEY);
          if (!IS_ADDER && IS_WEAK && !isObject(a)) return KEY == 'get' ? undefined : false;
          var result = this._c[KEY](a === 0 ? 0 : a, b);
          return IS_ADDER ? this : result;
        });
      });
      if ('size' in proto) dP(C.prototype, 'size', {
        get: function () {
          return this._c.size;
        }
      });
    }

    setToStringTag(C, NAME);

    O[NAME] = C;
    $export($export.G + $export.W + $export.F, O);

    if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);

    return C;
  };
});
$__System.registerDynamic('1a1', ['195', '1a2', '174', 'cc', '34', '10f', '35', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var each = $__require('195')(0),
      redefine = $__require('1a2'),
      meta = $__require('174'),
      assign = $__require('cc'),
      weak = $__require('34'),
      isObject = $__require('10f'),
      getWeak = meta.getWeak,
      isExtensible = Object.isExtensible,
      uncaughtFrozenStore = weak.ufstore,
      tmp = {},
      InternalMap;

  var wrapper = function (get) {
    return function WeakMap() {
      return get(this, arguments.length > 0 ? arguments[0] : undefined);
    };
  };

  var methods = {
    // 23.3.3.3 WeakMap.prototype.get(key)
    get: function get(key) {
      if (isObject(key)) {
        var data = getWeak(key);
        if (data === true) return uncaughtFrozenStore(this).get(key);
        return data ? data[this._i] : undefined;
      }
    },
    // 23.3.3.5 WeakMap.prototype.set(key, value)
    set: function set(key, value) {
      return weak.def(this, key, value);
    }
  };

  // 23.3 WeakMap Objects
  var $WeakMap = module.exports = $__require('35')('WeakMap', wrapper, methods, weak, true, true);

  // IE11 WeakMap frozen keys fix
  if (new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7) {
    InternalMap = weak.getConstructor(wrapper);
    assign(InternalMap.prototype, methods);
    meta.NEED = true;
    each(['delete', 'has', 'get', 'set'], function (key) {
      var proto = $WeakMap.prototype,
          method = proto[key];
      redefine(proto, key, function (a, b) {
        // store frozen objects on internal weakmap shim
        if (isObject(a) && !isExtensible(a)) {
          if (!this._f) this._f = new InternalMap();
          var result = this._f[key](a, b);
          return key == 'set' ? this : result;
          // store all the rest on native weakmap
        }return method.call(this, a, b);
      });
    });
  }
});
$__System.registerDynamic('1a3', ['37', '38', '1a1', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('37');
  $__require('38');
  $__require('1a1');
  module.exports = $__require('39').WeakMap;
});
$__System.registerDynamic("1a4", ["1a3"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("1a3"), __esModule: true };
});
$__System.registerDynamic("158", ["1a4", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.scope = exports.path = undefined;

  var _weakMap = $__require("1a4");

  var _weakMap2 = _interopRequireDefault(_weakMap);

  exports.clear = clear;
  exports.clearPath = clearPath;
  exports.clearScope = clearScope;

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var path = exports.path = new _weakMap2.default();
  var scope = exports.scope = new _weakMap2.default();

  function clear() {
    clearPath();
    clearScope();
  }

  function clearPath() {
    exports.path = path = new _weakMap2.default();
  }

  function clearScope() {
    exports.scope = scope = new _weakMap2.default();
  }
});
$__System.registerDynamic("d5", ["17", "15a", "157", "143", "187", "188", "f", "aa", "11", "158", "c"], true, function ($__require, exports, module) {
  "use strict";

  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.visitors = exports.Hub = exports.Scope = exports.NodePath = undefined;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _path = $__require("15a");

  Object.defineProperty(exports, "NodePath", {
    enumerable: true,
    get: function get() {
      return _interopRequireDefault(_path).default;
    }
  });

  var _scope = $__require("157");

  Object.defineProperty(exports, "Scope", {
    enumerable: true,
    get: function get() {
      return _interopRequireDefault(_scope).default;
    }
  });

  var _hub = $__require("143");

  Object.defineProperty(exports, "Hub", {
    enumerable: true,
    get: function get() {
      return _interopRequireDefault(_hub).default;
    }
  });
  exports.default = traverse;

  var _context = $__require("187");

  var _context2 = _interopRequireDefault(_context);

  var _visitors = $__require("188");

  var visitors = _interopRequireWildcard(_visitors);

  var _babelMessages = $__require("f");

  var messages = _interopRequireWildcard(_babelMessages);

  var _includes = $__require("aa");

  var _includes2 = _interopRequireDefault(_includes);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _cache = $__require("158");

  var cache = _interopRequireWildcard(_cache);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.visitors = visitors;
  function traverse(parent, opts, scope, state, parentPath) {
    if (!parent) return;
    if (!opts) opts = {};

    if (!opts.noScope && !scope) {
      if (parent.type !== "Program" && parent.type !== "File") {
        throw new Error(messages.get("traverseNeedsParent", parent.type));
      }
    }

    visitors.explode(opts);

    traverse.node(parent, opts, scope, state, parentPath);
  }

  traverse.visitors = visitors;
  traverse.verify = visitors.verify;
  traverse.explode = visitors.explode;

  traverse.NodePath = $__require("15a");
  traverse.Scope = $__require("157");
  traverse.Hub = $__require("143");

  traverse.cheap = function (node, enter) {
    return t.traverseFast(node, enter);
  };

  traverse.node = function (node, opts, scope, state, parentPath, skipKeys) {
    var keys = t.VISITOR_KEYS[node.type];
    if (!keys) return;

    var context = new _context2.default(scope, opts, state, parentPath);
    for (var _iterator = keys, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var key = _ref;

      if (skipKeys && skipKeys[key]) continue;
      if (context.visit(node, key)) return;
    }
  };

  traverse.clearNode = function (node, opts) {
    t.removeProperties(node, opts);

    cache.path.delete(node);
  };

  traverse.removeProperties = function (tree, opts) {
    t.traverseFast(tree, traverse.clearNode, opts);
    return tree;
  };

  function hasBlacklistedType(path, state) {
    if (path.node.type === state.type) {
      state.has = true;
      path.stop();
    }
  }

  traverse.hasType = function (tree, scope, type, blacklistTypes) {
    if ((0, _includes2.default)(blacklistTypes, tree.type)) return false;

    if (tree.type === type) return true;

    var state = {
      has: false,
      type: type
    };

    traverse(tree, {
      blacklist: blacklistTypes,
      enter: hasBlacklistedType
    }, scope, state);

    return state.has;
  };

  traverse.clearCache = function () {
    cache.clear();
  };

  traverse.clearCache.clearPath = cache.clearPath;
  traverse.clearCache.clearScope = cache.clearScope;

  traverse.copyCache = function (source, destination) {
    if (cache.path.has(source)) {
      cache.path.set(destination, cache.path.get(source));
    }
  };
});
$__System.registerDynamic('dc', [], true, function ($__require, exports, module) {
  'use strict';

  var global = this || self,
      GLOBAL = global;
  Object.defineProperty(exports, '__esModule', { value: true });

  /* eslint max-len: 0 */

  // This is a trick taken from Esprima. It turns out that, on
  // non-Chrome browsers, to check whether a string is in a set, a
  // predicate containing a big ugly `switch` statement is faster than
  // a regular expression, and on Chrome the two are about on par.
  // This function uses `eval` (non-lexical) to produce such a
  // predicate from a space-separated string of words.
  //
  // It starts by sorting the words by length.

  function makePredicate(words) {
    words = words.split(" ");
    return function (str) {
      return words.indexOf(str) >= 0;
    };
  }

  // Reserved word lists for various dialects of the language

  var reservedWords = {
    6: makePredicate("enum await"),
    strict: makePredicate("implements interface let package private protected public static yield"),
    strictBind: makePredicate("eval arguments")
  };

  // And the keywords

  var isKeyword = makePredicate("break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this let const class extends export import yield super");

  // ## Character categories

  // Big ugly regular expressions that match characters in the
  // whitespace, identifier, and identifier-start categories. These
  // are only applied when a character is found to actually have a
  // code point above 128.
  // Generated by `bin/generate-identifier-regex.js`.

  var nonASCIIidentifierStartChars = "\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B4\u08B6-\u08BD\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0AF9\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58-\u0C5A\u0C60\u0C61\u0C80\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D54-\u0D56\u0D5F-\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1C80-\u1C88\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2118-\u211D\u2124\u2126\u2128\u212A-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309B-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FD5\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA8FD\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC";
  var nonASCIIidentifierChars = "\u200C\u200D\xB7\u0300-\u036F\u0387\u0483-\u0487\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u0669\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u06F0-\u06F9\u0711\u0730-\u074A\u07A6-\u07B0\u07C0-\u07C9\u07EB-\u07F3\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u08D4-\u08E1\u08E3-\u0903\u093A-\u093C\u093E-\u094F\u0951-\u0957\u0962\u0963\u0966-\u096F\u0981-\u0983\u09BC\u09BE-\u09C4\u09C7\u09C8\u09CB-\u09CD\u09D7\u09E2\u09E3\u09E6-\u09EF\u0A01-\u0A03\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A66-\u0A71\u0A75\u0A81-\u0A83\u0ABC\u0ABE-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AE2\u0AE3\u0AE6-\u0AEF\u0B01-\u0B03\u0B3C\u0B3E-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B62\u0B63\u0B66-\u0B6F\u0B82\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD7\u0BE6-\u0BEF\u0C00-\u0C03\u0C3E-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C66-\u0C6F\u0C81-\u0C83\u0CBC\u0CBE-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CE2\u0CE3\u0CE6-\u0CEF\u0D01-\u0D03\u0D3E-\u0D44\u0D46-\u0D48\u0D4A-\u0D4D\u0D57\u0D62\u0D63\u0D66-\u0D6F\u0D82\u0D83\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2\u0DF3\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0E50-\u0E59\u0EB1\u0EB4-\u0EB9\u0EBB\u0EBC\u0EC8-\u0ECD\u0ED0-\u0ED9\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E\u0F3F\u0F71-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102B-\u103E\u1040-\u1049\u1056-\u1059\u105E-\u1060\u1062-\u1064\u1067-\u106D\u1071-\u1074\u1082-\u108D\u108F-\u109D\u135D-\u135F\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4-\u17D3\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u18A9\u1920-\u192B\u1930-\u193B\u1946-\u194F\u19D0-\u19DA\u1A17-\u1A1B\u1A55-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AB0-\u1ABD\u1B00-\u1B04\u1B34-\u1B44\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1B82\u1BA1-\u1BAD\u1BB0-\u1BB9\u1BE6-\u1BF3\u1C24-\u1C37\u1C40-\u1C49\u1C50-\u1C59\u1CD0-\u1CD2\u1CD4-\u1CE8\u1CED\u1CF2-\u1CF4\u1CF8\u1CF9\u1DC0-\u1DF5\u1DFB-\u1DFF\u203F\u2040\u2054\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA620-\uA629\uA66F\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA823-\uA827\uA880\uA881\uA8B4-\uA8C5\uA8D0-\uA8D9\uA8E0-\uA8F1\uA900-\uA909\uA926-\uA92D\uA947-\uA953\uA980-\uA983\uA9B3-\uA9C0\uA9D0-\uA9D9\uA9E5\uA9F0-\uA9F9\uAA29-\uAA36\uAA43\uAA4C\uAA4D\uAA50-\uAA59\uAA7B-\uAA7D\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEB-\uAAEF\uAAF5\uAAF6\uABE3-\uABEA\uABEC\uABED\uABF0-\uABF9\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\uFE33\uFE34\uFE4D-\uFE4F\uFF10-\uFF19\uFF3F";

  var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
  var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");

  nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;

  // These are a run-length and offset encoded representation of the
  // >0xffff code points that are a valid part of identifiers. The
  // offset starts at 0x10000, and each pair of numbers represents an
  // offset to the next range, and then a size of the range. They were
  // generated by `bin/generate-identifier-regex.js`.
  // eslint-disable-next-line comma-spacing
  var astralIdentifierStartCodes = [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 17, 26, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 19, 35, 5, 35, 5, 39, 9, 51, 157, 310, 10, 21, 11, 7, 153, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 66, 18, 2, 1, 11, 21, 11, 25, 71, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 26, 45, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 56, 50, 14, 50, 785, 52, 76, 44, 33, 24, 27, 35, 42, 34, 4, 0, 13, 47, 15, 3, 22, 0, 2, 0, 36, 17, 2, 24, 85, 6, 2, 0, 2, 3, 2, 14, 2, 9, 8, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 19, 0, 13, 4, 159, 52, 19, 3, 54, 47, 21, 1, 2, 0, 185, 46, 42, 3, 37, 47, 21, 0, 60, 42, 86, 25, 391, 63, 32, 0, 449, 56, 264, 8, 2, 36, 18, 0, 50, 29, 881, 921, 103, 110, 18, 195, 2749, 1070, 4050, 582, 8634, 568, 8, 30, 114, 29, 19, 47, 17, 3, 32, 20, 6, 18, 881, 68, 12, 0, 67, 12, 65, 0, 32, 6124, 20, 754, 9486, 1, 3071, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 4149, 196, 60, 67, 1213, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42710, 42, 4148, 12, 221, 3, 5761, 10591, 541];
  // eslint-disable-next-line comma-spacing
  var astralIdentifierCodes = [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 1306, 2, 54, 14, 32, 9, 16, 3, 46, 10, 54, 9, 7, 2, 37, 13, 2, 9, 52, 0, 13, 2, 49, 13, 10, 2, 4, 9, 83, 11, 7, 0, 161, 11, 6, 9, 7, 3, 57, 0, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 193, 17, 10, 9, 87, 19, 13, 9, 214, 6, 3, 8, 28, 1, 83, 16, 16, 9, 82, 12, 9, 9, 84, 14, 5, 9, 423, 9, 838, 7, 2, 7, 17, 9, 57, 21, 2, 13, 19882, 9, 135, 4, 60, 6, 26, 9, 1016, 45, 17, 3, 19723, 1, 5319, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 513, 54, 5, 49, 9, 0, 15, 0, 23, 4, 2, 14, 1361, 6, 2, 16, 3, 6, 2, 1, 2, 4, 2214, 6, 110, 6, 6, 9, 792487, 239];

  // This has a complexity linear to the value of the code. The
  // assumption is that looking up astral identifier characters is
  // rare.
  function isInAstralSet(code, set) {
    var pos = 0x10000;
    for (var i = 0; i < set.length; i += 2) {
      pos += set[i];
      if (pos > code) return false;

      pos += set[i + 1];
      if (pos >= code) return true;
    }
  }

  // Test whether a given character code starts an identifier.

  function isIdentifierStart(code) {
    if (code < 65) return code === 36;
    if (code < 91) return true;
    if (code < 97) return code === 95;
    if (code < 123) return true;
    if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code));
    return isInAstralSet(code, astralIdentifierStartCodes);
  }

  // Test whether a given character is part of an identifier.

  function isIdentifierChar(code) {
    if (code < 48) return code === 36;
    if (code < 58) return true;
    if (code < 65) return false;
    if (code < 91) return true;
    if (code < 97) return code === 95;
    if (code < 123) return true;
    if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code));
    return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes);
  }

  // A second optional argument can be given to further configure
  var defaultOptions = {
    // Source type ("script" or "module") for different semantics
    sourceType: "script",
    // Source filename.
    sourceFilename: undefined,
    // Line from which to start counting source. Useful for
    // integration with other tools.
    startLine: 1,
    // When enabled, a return at the top level is not considered an
    // error.
    allowReturnOutsideFunction: false,
    // When enabled, import/export statements are not constrained to
    // appearing at the top of the program.
    allowImportExportEverywhere: false,
    // TODO
    allowSuperOutsideMethod: false,
    // An array of plugins to enable
    plugins: [],
    // TODO
    strictMode: null
  };

  // Interpret and default an options object

  function getOptions(opts) {
    var options = {};
    for (var key in defaultOptions) {
      options[key] = opts && key in opts ? opts[key] : defaultOptions[key];
    }
    return options;
  }

  var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
    return typeof obj;
  } : function (obj) {
    return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
  };

  var classCallCheck = function (instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  };

  var inherits = function (subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
    }

    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
    if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
  };

  var possibleConstructorReturn = function (self, call) {
    if (!self) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }

    return call && (typeof call === "object" || typeof call === "function") ? call : self;
  };

  // ## Token types

  // The assignment of fine-grained, information-carrying type objects
  // allows the tokenizer to store the information it has about a
  // token in a way that is very cheap for the parser to look up.

  // All token type variables start with an underscore, to make them
  // easy to recognize.

  // The `beforeExpr` property is used to disambiguate between regular
  // expressions and divisions. It is set on all token types that can
  // be followed by an expression (thus, a slash after them would be a
  // regular expression).
  //
  // `isLoop` marks a keyword as starting a loop, which is important
  // to know when parsing a label, in order to allow or disallow
  // continue jumps to that label.

  var beforeExpr = true;
  var startsExpr = true;
  var isLoop = true;
  var isAssign = true;
  var prefix = true;
  var postfix = true;

  var TokenType = function TokenType(label) {
    var conf = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    classCallCheck(this, TokenType);

    this.label = label;
    this.keyword = conf.keyword;
    this.beforeExpr = !!conf.beforeExpr;
    this.startsExpr = !!conf.startsExpr;
    this.rightAssociative = !!conf.rightAssociative;
    this.isLoop = !!conf.isLoop;
    this.isAssign = !!conf.isAssign;
    this.prefix = !!conf.prefix;
    this.postfix = !!conf.postfix;
    this.binop = conf.binop || null;
    this.updateContext = null;
  };

  var KeywordTokenType = function (_TokenType) {
    inherits(KeywordTokenType, _TokenType);

    function KeywordTokenType(name) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      classCallCheck(this, KeywordTokenType);

      options.keyword = name;

      return possibleConstructorReturn(this, _TokenType.call(this, name, options));
    }

    return KeywordTokenType;
  }(TokenType);

  var BinopTokenType = function (_TokenType2) {
    inherits(BinopTokenType, _TokenType2);

    function BinopTokenType(name, prec) {
      classCallCheck(this, BinopTokenType);
      return possibleConstructorReturn(this, _TokenType2.call(this, name, { beforeExpr: beforeExpr, binop: prec }));
    }

    return BinopTokenType;
  }(TokenType);

  var types = {
    num: new TokenType("num", { startsExpr: startsExpr }),
    regexp: new TokenType("regexp", { startsExpr: startsExpr }),
    string: new TokenType("string", { startsExpr: startsExpr }),
    name: new TokenType("name", { startsExpr: startsExpr }),
    eof: new TokenType("eof"),

    // Punctuation token types.
    bracketL: new TokenType("[", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
    bracketR: new TokenType("]"),
    braceL: new TokenType("{", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
    braceBarL: new TokenType("{|", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
    braceR: new TokenType("}"),
    braceBarR: new TokenType("|}"),
    parenL: new TokenType("(", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
    parenR: new TokenType(")"),
    comma: new TokenType(",", { beforeExpr: beforeExpr }),
    semi: new TokenType(";", { beforeExpr: beforeExpr }),
    colon: new TokenType(":", { beforeExpr: beforeExpr }),
    doubleColon: new TokenType("::", { beforeExpr: beforeExpr }),
    dot: new TokenType("."),
    question: new TokenType("?", { beforeExpr: beforeExpr }),
    arrow: new TokenType("=>", { beforeExpr: beforeExpr }),
    template: new TokenType("template"),
    ellipsis: new TokenType("...", { beforeExpr: beforeExpr }),
    backQuote: new TokenType("`", { startsExpr: startsExpr }),
    dollarBraceL: new TokenType("${", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
    at: new TokenType("@"),

    // Operators. These carry several kinds of properties to help the
    // parser use them properly (the presence of these properties is
    // what categorizes them as operators).
    //
    // `binop`, when present, specifies that this operator is a binary
    // operator, and will refer to its precedence.
    //
    // `prefix` and `postfix` mark the operator as a prefix or postfix
    // unary operator.
    //
    // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
    // binary operators with a very low precedence, that should result
    // in AssignmentExpression nodes.

    eq: new TokenType("=", { beforeExpr: beforeExpr, isAssign: isAssign }),
    assign: new TokenType("_=", { beforeExpr: beforeExpr, isAssign: isAssign }),
    incDec: new TokenType("++/--", { prefix: prefix, postfix: postfix, startsExpr: startsExpr }),
    prefix: new TokenType("prefix", { beforeExpr: beforeExpr, prefix: prefix, startsExpr: startsExpr }),
    logicalOR: new BinopTokenType("||", 1),
    logicalAND: new BinopTokenType("&&", 2),
    bitwiseOR: new BinopTokenType("|", 3),
    bitwiseXOR: new BinopTokenType("^", 4),
    bitwiseAND: new BinopTokenType("&", 5),
    equality: new BinopTokenType("==/!=", 6),
    relational: new BinopTokenType("</>", 7),
    bitShift: new BinopTokenType("<</>>", 8),
    plusMin: new TokenType("+/-", { beforeExpr: beforeExpr, binop: 9, prefix: prefix, startsExpr: startsExpr }),
    modulo: new BinopTokenType("%", 10),
    star: new BinopTokenType("*", 10),
    slash: new BinopTokenType("/", 10),
    exponent: new TokenType("**", { beforeExpr: beforeExpr, binop: 11, rightAssociative: true })
  };

  var keywords = {
    "break": new KeywordTokenType("break"),
    "case": new KeywordTokenType("case", { beforeExpr: beforeExpr }),
    "catch": new KeywordTokenType("catch"),
    "continue": new KeywordTokenType("continue"),
    "debugger": new KeywordTokenType("debugger"),
    "default": new KeywordTokenType("default", { beforeExpr: beforeExpr }),
    "do": new KeywordTokenType("do", { isLoop: isLoop, beforeExpr: beforeExpr }),
    "else": new KeywordTokenType("else", { beforeExpr: beforeExpr }),
    "finally": new KeywordTokenType("finally"),
    "for": new KeywordTokenType("for", { isLoop: isLoop }),
    "function": new KeywordTokenType("function", { startsExpr: startsExpr }),
    "if": new KeywordTokenType("if"),
    "return": new KeywordTokenType("return", { beforeExpr: beforeExpr }),
    "switch": new KeywordTokenType("switch"),
    "throw": new KeywordTokenType("throw", { beforeExpr: beforeExpr }),
    "try": new KeywordTokenType("try"),
    "var": new KeywordTokenType("var"),
    "let": new KeywordTokenType("let"),
    "const": new KeywordTokenType("const"),
    "while": new KeywordTokenType("while", { isLoop: isLoop }),
    "with": new KeywordTokenType("with"),
    "new": new KeywordTokenType("new", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
    "this": new KeywordTokenType("this", { startsExpr: startsExpr }),
    "super": new KeywordTokenType("super", { startsExpr: startsExpr }),
    "class": new KeywordTokenType("class"),
    "extends": new KeywordTokenType("extends", { beforeExpr: beforeExpr }),
    "export": new KeywordTokenType("export"),
    "import": new KeywordTokenType("import", { startsExpr: startsExpr }),
    "yield": new KeywordTokenType("yield", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
    "null": new KeywordTokenType("null", { startsExpr: startsExpr }),
    "true": new KeywordTokenType("true", { startsExpr: startsExpr }),
    "false": new KeywordTokenType("false", { startsExpr: startsExpr }),
    "in": new KeywordTokenType("in", { beforeExpr: beforeExpr, binop: 7 }),
    "instanceof": new KeywordTokenType("instanceof", { beforeExpr: beforeExpr, binop: 7 }),
    "typeof": new KeywordTokenType("typeof", { beforeExpr: beforeExpr, prefix: prefix, startsExpr: startsExpr }),
    "void": new KeywordTokenType("void", { beforeExpr: beforeExpr, prefix: prefix, startsExpr: startsExpr }),
    "delete": new KeywordTokenType("delete", { beforeExpr: beforeExpr, prefix: prefix, startsExpr: startsExpr })
  };

  // Map keyword names to token types.
  Object.keys(keywords).forEach(function (name) {
    types["_" + name] = keywords[name];
  });

  // Matches a whole line break (where CRLF is considered a single
  // line break). Used to count lines.

  var lineBreak = /\r\n?|\n|\u2028|\u2029/;
  var lineBreakG = new RegExp(lineBreak.source, "g");

  function isNewLine(code) {
    return code === 10 || code === 13 || code === 0x2028 || code === 0x2029;
  }

  var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;

  // The algorithm used to determine whether a regexp can appear at a
  // given point in the program is loosely based on sweet.js' approach.
  // See https://github.com/mozilla/sweet.js/wiki/design

  var TokContext = function TokContext(token, isExpr, preserveSpace, override) {
    classCallCheck(this, TokContext);

    this.token = token;
    this.isExpr = !!isExpr;
    this.preserveSpace = !!preserveSpace;
    this.override = override;
  };

  var types$1 = {
    braceStatement: new TokContext("{", false),
    braceExpression: new TokContext("{", true),
    templateQuasi: new TokContext("${", true),
    parenStatement: new TokContext("(", false),
    parenExpression: new TokContext("(", true),
    template: new TokContext("`", true, true, function (p) {
      return p.readTmplToken();
    }),
    functionExpression: new TokContext("function", true)
  };

  // Token-specific context update code

  types.parenR.updateContext = types.braceR.updateContext = function () {
    if (this.state.context.length === 1) {
      this.state.exprAllowed = true;
      return;
    }

    var out = this.state.context.pop();
    if (out === types$1.braceStatement && this.curContext() === types$1.functionExpression) {
      this.state.context.pop();
      this.state.exprAllowed = false;
    } else if (out === types$1.templateQuasi) {
      this.state.exprAllowed = true;
    } else {
      this.state.exprAllowed = !out.isExpr;
    }
  };

  types.name.updateContext = function (prevType) {
    this.state.exprAllowed = false;

    if (prevType === types._let || prevType === types._const || prevType === types._var) {
      if (lineBreak.test(this.input.slice(this.state.end))) {
        this.state.exprAllowed = true;
      }
    }
  };

  types.braceL.updateContext = function (prevType) {
    this.state.context.push(this.braceIsBlock(prevType) ? types$1.braceStatement : types$1.braceExpression);
    this.state.exprAllowed = true;
  };

  types.dollarBraceL.updateContext = function () {
    this.state.context.push(types$1.templateQuasi);
    this.state.exprAllowed = true;
  };

  types.parenL.updateContext = function (prevType) {
    var statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while;
    this.state.context.push(statementParens ? types$1.parenStatement : types$1.parenExpression);
    this.state.exprAllowed = true;
  };

  types.incDec.updateContext = function () {
    // tokExprAllowed stays unchanged
  };

  types._function.updateContext = function () {
    if (this.curContext() !== types$1.braceStatement) {
      this.state.context.push(types$1.functionExpression);
    }

    this.state.exprAllowed = false;
  };

  types.backQuote.updateContext = function () {
    if (this.curContext() === types$1.template) {
      this.state.context.pop();
    } else {
      this.state.context.push(types$1.template);
    }
    this.state.exprAllowed = false;
  };

  // These are used when `options.locations` is on, for the
  // `startLoc` and `endLoc` properties.

  var Position = function Position(line, col) {
    classCallCheck(this, Position);

    this.line = line;
    this.column = col;
  };

  var SourceLocation = function SourceLocation(start, end) {
    classCallCheck(this, SourceLocation);

    this.start = start;
    this.end = end;
  };

  // The `getLineInfo` function is mostly useful when the
  // `locations` option is off (for performance reasons) and you
  // want to find the line/column position for a given character
  // offset. `input` should be the code string that the offset refers
  // into.

  function getLineInfo(input, offset) {
    for (var line = 1, cur = 0;;) {
      lineBreakG.lastIndex = cur;
      var match = lineBreakG.exec(input);
      if (match && match.index < offset) {
        ++line;
        cur = match.index + match[0].length;
      } else {
        return new Position(line, offset - cur);
      }
    }
  }

  var State = function () {
    function State() {
      classCallCheck(this, State);
    }

    State.prototype.init = function init(options, input) {
      this.strict = options.strictMode === false ? false : options.sourceType === "module";

      this.input = input;

      this.potentialArrowAt = -1;

      this.inMethod = this.inFunction = this.inGenerator = this.inAsync = this.inPropertyName = this.inType = this.inClassProperty = this.noAnonFunctionType = false;

      this.labels = [];

      this.decorators = [];

      this.tokens = [];

      this.comments = [];

      this.trailingComments = [];
      this.leadingComments = [];
      this.commentStack = [];

      this.pos = this.lineStart = 0;
      this.curLine = options.startLine;

      this.type = types.eof;
      this.value = null;
      this.start = this.end = this.pos;
      this.startLoc = this.endLoc = this.curPosition();

      this.lastTokEndLoc = this.lastTokStartLoc = null;
      this.lastTokStart = this.lastTokEnd = this.pos;

      this.context = [types$1.braceStatement];
      this.exprAllowed = true;

      this.containsEsc = this.containsOctal = false;
      this.octalPosition = null;

      this.invalidTemplateEscapePosition = null;

      this.exportedIdentifiers = [];

      return this;
    };

    // TODO


    // TODO


    // Used to signify the start of a potential arrow function


    // Flags to track whether we are in a function, a generator.


    // Labels in scope.


    // Leading decorators.


    // Token store.


    // Comment store.


    // Comment attachment store


    // The current position of the tokenizer in the input.


    // Properties of the current token:
    // Its type


    // For tokens that include more information than their type, the value


    // Its start and end offset


    // And, if locations are used, the {line, column} object
    // corresponding to those offsets


    // Position information for the previous token


    // The context stack is used to superficially track syntactic
    // context to predict whether a regular expression is allowed in a
    // given position.


    // Used to signal to callers of `readWord1` whether the word
    // contained any escape sequences. This is needed because words with
    // escape sequences must not be interpreted as keywords.


    // TODO


    // Names of exports store. `default` is stored as a name for both
    // `export default foo;` and `export { foo as default };`.


    State.prototype.curPosition = function curPosition() {
      return new Position(this.curLine, this.pos - this.lineStart);
    };

    State.prototype.clone = function clone(skipArrays) {
      var state = new State();
      for (var key in this) {
        var val = this[key];

        if ((!skipArrays || key === "context") && Array.isArray(val)) {
          val = val.slice();
        }

        state[key] = val;
      }
      return state;
    };

    return State;
  }();

  // Object type used to represent tokens. Note that normally, tokens
  // simply exist as properties on the parser object. This is only
  // used for the onToken callback and the external tokenizer.

  var Token = function Token(state) {
    classCallCheck(this, Token);

    this.type = state.type;
    this.value = state.value;
    this.start = state.start;
    this.end = state.end;
    this.loc = new SourceLocation(state.startLoc, state.endLoc);
  };

  // ## Tokenizer

  function codePointToString(code) {
    // UTF-16 Decoding
    if (code <= 0xFFFF) {
      return String.fromCharCode(code);
    } else {
      return String.fromCharCode((code - 0x10000 >> 10) + 0xD800, (code - 0x10000 & 1023) + 0xDC00);
    }
  }

  var Tokenizer = function () {
    function Tokenizer(options, input) {
      classCallCheck(this, Tokenizer);

      this.state = new State();
      this.state.init(options, input);
    }

    // Move to the next token

    Tokenizer.prototype.next = function next() {
      if (!this.isLookahead) {
        this.state.tokens.push(new Token(this.state));
      }

      this.state.lastTokEnd = this.state.end;
      this.state.lastTokStart = this.state.start;
      this.state.lastTokEndLoc = this.state.endLoc;
      this.state.lastTokStartLoc = this.state.startLoc;
      this.nextToken();
    };

    // TODO

    Tokenizer.prototype.eat = function eat(type) {
      if (this.match(type)) {
        this.next();
        return true;
      } else {
        return false;
      }
    };

    // TODO

    Tokenizer.prototype.match = function match(type) {
      return this.state.type === type;
    };

    // TODO

    Tokenizer.prototype.isKeyword = function isKeyword$$1(word) {
      return isKeyword(word);
    };

    // TODO

    Tokenizer.prototype.lookahead = function lookahead() {
      var old = this.state;
      this.state = old.clone(true);

      this.isLookahead = true;
      this.next();
      this.isLookahead = false;

      var curr = this.state.clone(true);
      this.state = old;
      return curr;
    };

    // Toggle strict mode. Re-reads the next number or string to please
    // pedantic tests (`"use strict"; 010;` should fail).

    Tokenizer.prototype.setStrict = function setStrict(strict) {
      this.state.strict = strict;
      if (!this.match(types.num) && !this.match(types.string)) return;
      this.state.pos = this.state.start;
      while (this.state.pos < this.state.lineStart) {
        this.state.lineStart = this.input.lastIndexOf("\n", this.state.lineStart - 2) + 1;
        --this.state.curLine;
      }
      this.nextToken();
    };

    Tokenizer.prototype.curContext = function curContext() {
      return this.state.context[this.state.context.length - 1];
    };

    // Read a single token, updating the parser object's token-related
    // properties.

    Tokenizer.prototype.nextToken = function nextToken() {
      var curContext = this.curContext();
      if (!curContext || !curContext.preserveSpace) this.skipSpace();

      this.state.containsOctal = false;
      this.state.octalPosition = null;
      this.state.start = this.state.pos;
      this.state.startLoc = this.state.curPosition();
      if (this.state.pos >= this.input.length) return this.finishToken(types.eof);

      if (curContext.override) {
        return curContext.override(this);
      } else {
        return this.readToken(this.fullCharCodeAtPos());
      }
    };

    Tokenizer.prototype.readToken = function readToken(code) {
      // Identifier or keyword. '\uXXXX' sequences are allowed in
      // identifiers, so '\' also dispatches to that.
      if (isIdentifierStart(code) || code === 92 /* '\' */) {
          return this.readWord();
        } else {
        return this.getTokenFromCode(code);
      }
    };

    Tokenizer.prototype.fullCharCodeAtPos = function fullCharCodeAtPos() {
      var code = this.input.charCodeAt(this.state.pos);
      if (code <= 0xd7ff || code >= 0xe000) return code;

      var next = this.input.charCodeAt(this.state.pos + 1);
      return (code << 10) + next - 0x35fdc00;
    };

    Tokenizer.prototype.pushComment = function pushComment(block, text, start, end, startLoc, endLoc) {
      var comment = {
        type: block ? "CommentBlock" : "CommentLine",
        value: text,
        start: start,
        end: end,
        loc: new SourceLocation(startLoc, endLoc)
      };

      if (!this.isLookahead) {
        this.state.tokens.push(comment);
        this.state.comments.push(comment);
        this.addComment(comment);
      }
    };

    Tokenizer.prototype.skipBlockComment = function skipBlockComment() {
      var startLoc = this.state.curPosition();
      var start = this.state.pos;
      var end = this.input.indexOf("*/", this.state.pos += 2);
      if (end === -1) this.raise(this.state.pos - 2, "Unterminated comment");

      this.state.pos = end + 2;
      lineBreakG.lastIndex = start;
      var match = void 0;
      while ((match = lineBreakG.exec(this.input)) && match.index < this.state.pos) {
        ++this.state.curLine;
        this.state.lineStart = match.index + match[0].length;
      }

      this.pushComment(true, this.input.slice(start + 2, end), start, this.state.pos, startLoc, this.state.curPosition());
    };

    Tokenizer.prototype.skipLineComment = function skipLineComment(startSkip) {
      var start = this.state.pos;
      var startLoc = this.state.curPosition();
      var ch = this.input.charCodeAt(this.state.pos += startSkip);
      while (this.state.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) {
        ++this.state.pos;
        ch = this.input.charCodeAt(this.state.pos);
      }

      this.pushComment(false, this.input.slice(start + startSkip, this.state.pos), start, this.state.pos, startLoc, this.state.curPosition());
    };

    // Called at the start of the parse and after every token. Skips
    // whitespace and comments, and.

    Tokenizer.prototype.skipSpace = function skipSpace() {
      loop: while (this.state.pos < this.input.length) {
        var ch = this.input.charCodeAt(this.state.pos);
        switch (ch) {
          case 32:case 160:
            // ' '
            ++this.state.pos;
            break;

          case 13:
            if (this.input.charCodeAt(this.state.pos + 1) === 10) {
              ++this.state.pos;
            }

          case 10:case 8232:case 8233:
            ++this.state.pos;
            ++this.state.curLine;
            this.state.lineStart = this.state.pos;
            break;

          case 47:
            // '/'
            switch (this.input.charCodeAt(this.state.pos + 1)) {
              case 42:
                // '*'
                this.skipBlockComment();
                break;

              case 47:
                this.skipLineComment(2);
                break;

              default:
                break loop;
            }
            break;

          default:
            if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
              ++this.state.pos;
            } else {
              break loop;
            }
        }
      }
    };

    // Called at the end of every token. Sets `end`, `val`, and
    // maintains `context` and `exprAllowed`, and skips the space after
    // the token, so that the next one's `start` will point at the
    // right position.

    Tokenizer.prototype.finishToken = function finishToken(type, val) {
      this.state.end = this.state.pos;
      this.state.endLoc = this.state.curPosition();
      var prevType = this.state.type;
      this.state.type = type;
      this.state.value = val;

      this.updateContext(prevType);
    };

    // ### Token reading

    // This is the function that is called to fetch the next token. It
    // is somewhat obscure, because it works in character codes rather
    // than characters, and because operator parsing has been inlined
    // into it.
    //
    // All in the name of speed.
    //


    Tokenizer.prototype.readToken_dot = function readToken_dot() {
      var next = this.input.charCodeAt(this.state.pos + 1);
      if (next >= 48 && next <= 57) {
        return this.readNumber(true);
      }

      var next2 = this.input.charCodeAt(this.state.pos + 2);
      if (next === 46 && next2 === 46) {
        // 46 = dot '.'
        this.state.pos += 3;
        return this.finishToken(types.ellipsis);
      } else {
        ++this.state.pos;
        return this.finishToken(types.dot);
      }
    };

    Tokenizer.prototype.readToken_slash = function readToken_slash() {
      // '/'
      if (this.state.exprAllowed) {
        ++this.state.pos;
        return this.readRegexp();
      }

      var next = this.input.charCodeAt(this.state.pos + 1);
      if (next === 61) {
        return this.finishOp(types.assign, 2);
      } else {
        return this.finishOp(types.slash, 1);
      }
    };

    Tokenizer.prototype.readToken_mult_modulo = function readToken_mult_modulo(code) {
      // '%*'
      var type = code === 42 ? types.star : types.modulo;
      var width = 1;
      var next = this.input.charCodeAt(this.state.pos + 1);

      if (next === 42) {
        // '*'
        width++;
        next = this.input.charCodeAt(this.state.pos + 2);
        type = types.exponent;
      }

      if (next === 61) {
        width++;
        type = types.assign;
      }

      return this.finishOp(type, width);
    };

    Tokenizer.prototype.readToken_pipe_amp = function readToken_pipe_amp(code) {
      // '|&'
      var next = this.input.charCodeAt(this.state.pos + 1);
      if (next === code) return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2);
      if (next === 61) return this.finishOp(types.assign, 2);
      if (code === 124 && next === 125 && this.hasPlugin("flow")) return this.finishOp(types.braceBarR, 2);
      return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1);
    };

    Tokenizer.prototype.readToken_caret = function readToken_caret() {
      // '^'
      var next = this.input.charCodeAt(this.state.pos + 1);
      if (next === 61) {
        return this.finishOp(types.assign, 2);
      } else {
        return this.finishOp(types.bitwiseXOR, 1);
      }
    };

    Tokenizer.prototype.readToken_plus_min = function readToken_plus_min(code) {
      // '+-'
      var next = this.input.charCodeAt(this.state.pos + 1);

      if (next === code) {
        if (next === 45 && this.input.charCodeAt(this.state.pos + 2) === 62 && lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.pos))) {
          // A `-->` line comment
          this.skipLineComment(3);
          this.skipSpace();
          return this.nextToken();
        }
        return this.finishOp(types.incDec, 2);
      }

      if (next === 61) {
        return this.finishOp(types.assign, 2);
      } else {
        return this.finishOp(types.plusMin, 1);
      }
    };

    Tokenizer.prototype.readToken_lt_gt = function readToken_lt_gt(code) {
      // '<>'
      var next = this.input.charCodeAt(this.state.pos + 1);
      var size = 1;

      if (next === code) {
        size = code === 62 && this.input.charCodeAt(this.state.pos + 2) === 62 ? 3 : 2;
        if (this.input.charCodeAt(this.state.pos + size) === 61) return this.finishOp(types.assign, size + 1);
        return this.finishOp(types.bitShift, size);
      }

      if (next === 33 && code === 60 && this.input.charCodeAt(this.state.pos + 2) === 45 && this.input.charCodeAt(this.state.pos + 3) === 45) {
        if (this.inModule) this.unexpected();
        // `<!--`, an XML-style comment that should be interpreted as a line comment
        this.skipLineComment(4);
        this.skipSpace();
        return this.nextToken();
      }

      if (next === 61) {
        // <= | >=
        size = 2;
      }

      return this.finishOp(types.relational, size);
    };

    Tokenizer.prototype.readToken_eq_excl = function readToken_eq_excl(code) {
      // '=!'
      var next = this.input.charCodeAt(this.state.pos + 1);
      if (next === 61) return this.finishOp(types.equality, this.input.charCodeAt(this.state.pos + 2) === 61 ? 3 : 2);
      if (code === 61 && next === 62) {
        // '=>'
        this.state.pos += 2;
        return this.finishToken(types.arrow);
      }
      return this.finishOp(code === 61 ? types.eq : types.prefix, 1);
    };

    Tokenizer.prototype.getTokenFromCode = function getTokenFromCode(code) {
      switch (code) {
        // The interpretation of a dot depends on whether it is followed
        // by a digit or another two dots.
        case 46:
          // '.'
          return this.readToken_dot();

        // Punctuation tokens.
        case 40:
          ++this.state.pos;return this.finishToken(types.parenL);
        case 41:
          ++this.state.pos;return this.finishToken(types.parenR);
        case 59:
          ++this.state.pos;return this.finishToken(types.semi);
        case 44:
          ++this.state.pos;return this.finishToken(types.comma);
        case 91:
          ++this.state.pos;return this.finishToken(types.bracketL);
        case 93:
          ++this.state.pos;return this.finishToken(types.bracketR);

        case 123:
          if (this.hasPlugin("flow") && this.input.charCodeAt(this.state.pos + 1) === 124) {
            return this.finishOp(types.braceBarL, 2);
          } else {
            ++this.state.pos;
            return this.finishToken(types.braceL);
          }

        case 125:
          ++this.state.pos;return this.finishToken(types.braceR);

        case 58:
          if (this.hasPlugin("functionBind") && this.input.charCodeAt(this.state.pos + 1) === 58) {
            return this.finishOp(types.doubleColon, 2);
          } else {
            ++this.state.pos;
            return this.finishToken(types.colon);
          }

        case 63:
          ++this.state.pos;return this.finishToken(types.question);
        case 64:
          ++this.state.pos;return this.finishToken(types.at);

        case 96:
          // '`'
          ++this.state.pos;
          return this.finishToken(types.backQuote);

        case 48:
          // '0'
          var next = this.input.charCodeAt(this.state.pos + 1);
          if (next === 120 || next === 88) return this.readRadixNumber(16); // '0x', '0X' - hex number
          if (next === 111 || next === 79) return this.readRadixNumber(8); // '0o', '0O' - octal number
          if (next === 98 || next === 66) return this.readRadixNumber(2); // '0b', '0B' - binary number
        // Anything else beginning with a digit is an integer, octal
        // number, or float.
        case 49:case 50:case 51:case 52:case 53:case 54:case 55:case 56:case 57:
          // 1-9
          return this.readNumber(false);

        // Quotes produce strings.
        case 34:case 39:
          // '"', "'"
          return this.readString(code);

        // Operators are parsed inline in tiny state machines. '=' (61) is
        // often referred to. `finishOp` simply skips the amount of
        // characters it is given as second argument, and returns a token
        // of the type given by its first argument.

        case 47:
          // '/'
          return this.readToken_slash();

        case 37:case 42:
          // '%*'
          return this.readToken_mult_modulo(code);

        case 124:case 38:
          // '|&'
          return this.readToken_pipe_amp(code);

        case 94:
          // '^'
          return this.readToken_caret();

        case 43:case 45:
          // '+-'
          return this.readToken_plus_min(code);

        case 60:case 62:
          // '<>'
          return this.readToken_lt_gt(code);

        case 61:case 33:
          // '=!'
          return this.readToken_eq_excl(code);

        case 126:
          // '~'
          return this.finishOp(types.prefix, 1);
      }

      this.raise(this.state.pos, "Unexpected character '" + codePointToString(code) + "'");
    };

    Tokenizer.prototype.finishOp = function finishOp(type, size) {
      var str = this.input.slice(this.state.pos, this.state.pos + size);
      this.state.pos += size;
      return this.finishToken(type, str);
    };

    Tokenizer.prototype.readRegexp = function readRegexp() {
      var start = this.state.pos;
      var escaped = void 0,
          inClass = void 0;
      for (;;) {
        if (this.state.pos >= this.input.length) this.raise(start, "Unterminated regular expression");
        var ch = this.input.charAt(this.state.pos);
        if (lineBreak.test(ch)) {
          this.raise(start, "Unterminated regular expression");
        }
        if (escaped) {
          escaped = false;
        } else {
          if (ch === "[") {
            inClass = true;
          } else if (ch === "]" && inClass) {
            inClass = false;
          } else if (ch === "/" && !inClass) {
            break;
          }
          escaped = ch === "\\";
        }
        ++this.state.pos;
      }
      var content = this.input.slice(start, this.state.pos);
      ++this.state.pos;
      // Need to use `readWord1` because '\uXXXX' sequences are allowed
      // here (don't ask).
      var mods = this.readWord1();
      if (mods) {
        var validFlags = /^[gmsiyu]*$/;
        if (!validFlags.test(mods)) this.raise(start, "Invalid regular expression flag");
      }
      return this.finishToken(types.regexp, {
        pattern: content,
        flags: mods
      });
    };

    // Read an integer in the given radix. Return null if zero digits
    // were read, the integer value otherwise. When `len` is given, this
    // will return `null` unless the integer has exactly `len` digits.

    Tokenizer.prototype.readInt = function readInt(radix, len) {
      var start = this.state.pos;
      var total = 0;

      for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {
        var code = this.input.charCodeAt(this.state.pos);
        var val = void 0;
        if (code >= 97) {
          val = code - 97 + 10; // a
        } else if (code >= 65) {
          val = code - 65 + 10; // A
        } else if (code >= 48 && code <= 57) {
          val = code - 48; // 0-9
        } else {
          val = Infinity;
        }
        if (val >= radix) break;
        ++this.state.pos;
        total = total * radix + val;
      }
      if (this.state.pos === start || len != null && this.state.pos - start !== len) return null;

      return total;
    };

    Tokenizer.prototype.readRadixNumber = function readRadixNumber(radix) {
      this.state.pos += 2; // 0x
      var val = this.readInt(radix);
      if (val == null) this.raise(this.state.start + 2, "Expected number in radix " + radix);
      if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.state.pos, "Identifier directly after number");
      return this.finishToken(types.num, val);
    };

    // Read an integer, octal integer, or floating-point number.

    Tokenizer.prototype.readNumber = function readNumber(startsWithDot) {
      var start = this.state.pos;
      var octal = this.input.charCodeAt(start) === 48; // '0'
      var isFloat = false;

      if (!startsWithDot && this.readInt(10) === null) this.raise(start, "Invalid number");
      if (octal && this.state.pos == start + 1) octal = false; // number === 0

      var next = this.input.charCodeAt(this.state.pos);
      if (next === 46 && !octal) {
        // '.'
        ++this.state.pos;
        this.readInt(10);
        isFloat = true;
        next = this.input.charCodeAt(this.state.pos);
      }

      if ((next === 69 || next === 101) && !octal) {
        // 'eE'
        next = this.input.charCodeAt(++this.state.pos);
        if (next === 43 || next === 45) ++this.state.pos; // '+-'
        if (this.readInt(10) === null) this.raise(start, "Invalid number");
        isFloat = true;
      }

      if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.state.pos, "Identifier directly after number");

      var str = this.input.slice(start, this.state.pos);
      var val = void 0;
      if (isFloat) {
        val = parseFloat(str);
      } else if (!octal || str.length === 1) {
        val = parseInt(str, 10);
      } else if (this.state.strict) {
        this.raise(start, "Invalid number");
      } else if (/[89]/.test(str)) {
        val = parseInt(str, 10);
      } else {
        val = parseInt(str, 8);
      }
      return this.finishToken(types.num, val);
    };

    // Read a string value, interpreting backslash-escapes.

    Tokenizer.prototype.readCodePoint = function readCodePoint(throwOnInvalid) {
      var ch = this.input.charCodeAt(this.state.pos);
      var code = void 0;

      if (ch === 123) {
        // '{'
        var codePos = ++this.state.pos;
        code = this.readHexChar(this.input.indexOf("}", this.state.pos) - this.state.pos, throwOnInvalid);
        ++this.state.pos;
        if (code === null) {
          --this.state.invalidTemplateEscapePosition; // to point to the '\'' instead of the 'u'
        } else if (code > 0x10FFFF) {
          if (throwOnInvalid) {
            this.raise(codePos, "Code point out of bounds");
          } else {
            this.state.invalidTemplateEscapePosition = codePos - 2;
            return null;
          }
        }
      } else {
        code = this.readHexChar(4, throwOnInvalid);
      }
      return code;
    };

    Tokenizer.prototype.readString = function readString(quote) {
      var out = "",
          chunkStart = ++this.state.pos;
      for (;;) {
        if (this.state.pos >= this.input.length) this.raise(this.state.start, "Unterminated string constant");
        var ch = this.input.charCodeAt(this.state.pos);
        if (ch === quote) break;
        if (ch === 92) {
          // '\'
          out += this.input.slice(chunkStart, this.state.pos);
          out += this.readEscapedChar(false);
          chunkStart = this.state.pos;
        } else {
          if (isNewLine(ch)) this.raise(this.state.start, "Unterminated string constant");
          ++this.state.pos;
        }
      }
      out += this.input.slice(chunkStart, this.state.pos++);
      return this.finishToken(types.string, out);
    };

    // Reads template string tokens.

    Tokenizer.prototype.readTmplToken = function readTmplToken() {
      var out = "",
          chunkStart = this.state.pos,
          containsInvalid = false;
      for (;;) {
        if (this.state.pos >= this.input.length) this.raise(this.state.start, "Unterminated template");
        var ch = this.input.charCodeAt(this.state.pos);
        if (ch === 96 || ch === 36 && this.input.charCodeAt(this.state.pos + 1) === 123) {
          // '`', '${'
          if (this.state.pos === this.state.start && this.match(types.template)) {
            if (ch === 36) {
              this.state.pos += 2;
              return this.finishToken(types.dollarBraceL);
            } else {
              ++this.state.pos;
              return this.finishToken(types.backQuote);
            }
          }
          out += this.input.slice(chunkStart, this.state.pos);
          return this.finishToken(types.template, containsInvalid ? null : out);
        }
        if (ch === 92) {
          // '\'
          out += this.input.slice(chunkStart, this.state.pos);
          var escaped = this.readEscapedChar(true);
          if (escaped === null) {
            containsInvalid = true;
          } else {
            out += escaped;
          }
          chunkStart = this.state.pos;
        } else if (isNewLine(ch)) {
          out += this.input.slice(chunkStart, this.state.pos);
          ++this.state.pos;
          switch (ch) {
            case 13:
              if (this.input.charCodeAt(this.state.pos) === 10) ++this.state.pos;
            case 10:
              out += "\n";
              break;
            default:
              out += String.fromCharCode(ch);
              break;
          }
          ++this.state.curLine;
          this.state.lineStart = this.state.pos;
          chunkStart = this.state.pos;
        } else {
          ++this.state.pos;
        }
      }
    };

    // Used to read escaped characters

    Tokenizer.prototype.readEscapedChar = function readEscapedChar(inTemplate) {
      var throwOnInvalid = !inTemplate;
      var ch = this.input.charCodeAt(++this.state.pos);
      ++this.state.pos;
      switch (ch) {
        case 110:
          return "\n"; // 'n' -> '\n'
        case 114:
          return "\r"; // 'r' -> '\r'
        case 120:
          {
            // 'x'
            var code = this.readHexChar(2, throwOnInvalid);
            return code === null ? null : String.fromCharCode(code);
          }
        case 117:
          {
            // 'u'
            var _code = this.readCodePoint(throwOnInvalid);
            return _code === null ? null : codePointToString(_code);
          }
        case 116:
          return "\t"; // 't' -> '\t'
        case 98:
          return "\b"; // 'b' -> '\b'
        case 118:
          return "\x0B"; // 'v' -> '\u000b'
        case 102:
          return "\f"; // 'f' -> '\f'
        case 13:
          if (this.input.charCodeAt(this.state.pos) === 10) ++this.state.pos; // '\r\n'
        case 10:
          // ' \n'
          this.state.lineStart = this.state.pos;
          ++this.state.curLine;
          return "";
        default:
          if (ch >= 48 && ch <= 55) {
            var codePos = this.state.pos - 1;
            var octalStr = this.input.substr(this.state.pos - 1, 3).match(/^[0-7]+/)[0];
            var octal = parseInt(octalStr, 8);
            if (octal > 255) {
              octalStr = octalStr.slice(0, -1);
              octal = parseInt(octalStr, 8);
            }
            if (octal > 0) {
              if (inTemplate) {
                this.state.invalidTemplateEscapePosition = codePos;
                return null;
              } else if (this.state.strict) {
                this.raise(codePos, "Octal literal in strict mode");
              } else if (!this.state.containsOctal) {
                // These properties are only used to throw an error for an octal which occurs
                // in a directive which occurs prior to a "use strict" directive.
                this.state.containsOctal = true;
                this.state.octalPosition = codePos;
              }
            }
            this.state.pos += octalStr.length - 1;
            return String.fromCharCode(octal);
          }
          return String.fromCharCode(ch);
      }
    };

    // Used to read character escape sequences ('\x', '\u').

    Tokenizer.prototype.readHexChar = function readHexChar(len, throwOnInvalid) {
      var codePos = this.state.pos;
      var n = this.readInt(16, len);
      if (n === null) {
        if (throwOnInvalid) {
          this.raise(codePos, "Bad character escape sequence");
        } else {
          this.state.pos = codePos - 1;
          this.state.invalidTemplateEscapePosition = codePos - 1;
        }
      }
      return n;
    };

    // Read an identifier, and return it as a string. Sets `this.state.containsEsc`
    // to whether the word contained a '\u' escape.
    //
    // Incrementally adds only escaped chars, adding other chunks as-is
    // as a micro-optimization.

    Tokenizer.prototype.readWord1 = function readWord1() {
      this.state.containsEsc = false;
      var word = "",
          first = true,
          chunkStart = this.state.pos;
      while (this.state.pos < this.input.length) {
        var ch = this.fullCharCodeAtPos();
        if (isIdentifierChar(ch)) {
          this.state.pos += ch <= 0xffff ? 1 : 2;
        } else if (ch === 92) {
          // "\"
          this.state.containsEsc = true;

          word += this.input.slice(chunkStart, this.state.pos);
          var escStart = this.state.pos;

          if (this.input.charCodeAt(++this.state.pos) !== 117) {
            // "u"
            this.raise(this.state.pos, "Expecting Unicode escape sequence \\uXXXX");
          }

          ++this.state.pos;
          var esc = this.readCodePoint(true);
          if (!(first ? isIdentifierStart : isIdentifierChar)(esc, true)) {
            this.raise(escStart, "Invalid Unicode escape");
          }

          word += codePointToString(esc);
          chunkStart = this.state.pos;
        } else {
          break;
        }
        first = false;
      }
      return word + this.input.slice(chunkStart, this.state.pos);
    };

    // Read an identifier or keyword token. Will check for reserved
    // words when necessary.

    Tokenizer.prototype.readWord = function readWord() {
      var word = this.readWord1();
      var type = types.name;
      if (!this.state.containsEsc && this.isKeyword(word)) {
        type = keywords[word];
      }
      return this.finishToken(type, word);
    };

    Tokenizer.prototype.braceIsBlock = function braceIsBlock(prevType) {
      if (prevType === types.colon) {
        var parent = this.curContext();
        if (parent === types$1.braceStatement || parent === types$1.braceExpression) {
          return !parent.isExpr;
        }
      }

      if (prevType === types._return) {
        return lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start));
      }

      if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR) {
        return true;
      }

      if (prevType === types.braceL) {
        return this.curContext() === types$1.braceStatement;
      }

      return !this.state.exprAllowed;
    };

    Tokenizer.prototype.updateContext = function updateContext(prevType) {
      var type = this.state.type;
      var update = void 0;

      if (type.keyword && prevType === types.dot) {
        this.state.exprAllowed = false;
      } else if (update = type.updateContext) {
        update.call(this, prevType);
      } else {
        this.state.exprAllowed = type.beforeExpr;
      }
    };

    return Tokenizer;
  }();

  var plugins = {};
  var frozenDeprecatedWildcardPluginList = ["jsx", "doExpressions", "objectRestSpread", "decorators", "classProperties", "exportExtensions", "asyncGenerators", "functionBind", "functionSent", "dynamicImport", "flow"];

  var Parser = function (_Tokenizer) {
    inherits(Parser, _Tokenizer);

    function Parser(options, input) {
      classCallCheck(this, Parser);

      options = getOptions(options);

      var _this = possibleConstructorReturn(this, _Tokenizer.call(this, options, input));

      _this.options = options;
      _this.inModule = _this.options.sourceType === "module";
      _this.input = input;
      _this.plugins = _this.loadPlugins(_this.options.plugins);
      _this.filename = options.sourceFilename;

      // If enabled, skip leading hashbang line.
      if (_this.state.pos === 0 && _this.input[0] === "#" && _this.input[1] === "!") {
        _this.skipLineComment(2);
      }
      return _this;
    }

    Parser.prototype.isReservedWord = function isReservedWord(word) {
      if (word === "await") {
        return this.inModule;
      } else {
        return reservedWords[6](word);
      }
    };

    Parser.prototype.hasPlugin = function hasPlugin(name) {
      if (this.plugins["*"] && frozenDeprecatedWildcardPluginList.indexOf(name) > -1) {
        return true;
      }

      return !!this.plugins[name];
    };

    Parser.prototype.extend = function extend(name, f) {
      this[name] = f(this[name]);
    };

    Parser.prototype.loadAllPlugins = function loadAllPlugins() {
      var _this2 = this;

      // ensure flow plugin loads last, also ensure estree is not loaded with *
      var pluginNames = Object.keys(plugins).filter(function (name) {
        return name !== "flow" && name !== "estree";
      });
      pluginNames.push("flow");

      pluginNames.forEach(function (name) {
        var plugin = plugins[name];
        if (plugin) plugin(_this2);
      });
    };

    Parser.prototype.loadPlugins = function loadPlugins(pluginList) {
      // TODO: Deprecate "*" option in next major version of Babylon
      if (pluginList.indexOf("*") >= 0) {
        this.loadAllPlugins();

        return { "*": true };
      }

      var pluginMap = {};

      if (pluginList.indexOf("flow") >= 0) {
        // ensure flow plugin loads last
        pluginList = pluginList.filter(function (plugin) {
          return plugin !== "flow";
        });
        pluginList.push("flow");
      }

      if (pluginList.indexOf("estree") >= 0) {
        // ensure estree plugin loads first
        pluginList = pluginList.filter(function (plugin) {
          return plugin !== "estree";
        });
        pluginList.unshift("estree");
      }

      for (var _iterator = pluginList, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var name = _ref;

        if (!pluginMap[name]) {
          pluginMap[name] = true;

          var plugin = plugins[name];
          if (plugin) plugin(this);
        }
      }

      return pluginMap;
    };

    Parser.prototype.parse = function parse() {
      var file = this.startNode();
      var program = this.startNode();
      this.nextToken();
      return this.parseTopLevel(file, program);
    };

    return Parser;
  }(Tokenizer);

  var pp = Parser.prototype;

  // ## Parser utilities

  // TODO

  pp.addExtra = function (node, key, val) {
    if (!node) return;

    var extra = node.extra = node.extra || {};
    extra[key] = val;
  };

  // TODO

  pp.isRelational = function (op) {
    return this.match(types.relational) && this.state.value === op;
  };

  // TODO

  pp.expectRelational = function (op) {
    if (this.isRelational(op)) {
      this.next();
    } else {
      this.unexpected(null, types.relational);
    }
  };

  // Tests whether parsed token is a contextual keyword.

  pp.isContextual = function (name) {
    return this.match(types.name) && this.state.value === name;
  };

  // Consumes contextual keyword if possible.

  pp.eatContextual = function (name) {
    return this.state.value === name && this.eat(types.name);
  };

  // Asserts that following token is given contextual keyword.

  pp.expectContextual = function (name, message) {
    if (!this.eatContextual(name)) this.unexpected(null, message);
  };

  // Test whether a semicolon can be inserted at the current position.

  pp.canInsertSemicolon = function () {
    return this.match(types.eof) || this.match(types.braceR) || lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start));
  };

  // TODO

  pp.isLineTerminator = function () {
    return this.eat(types.semi) || this.canInsertSemicolon();
  };

  // Consume a semicolon, or, failing that, see if we are allowed to
  // pretend that there is a semicolon at this position.

  pp.semicolon = function () {
    if (!this.isLineTerminator()) this.unexpected(null, types.semi);
  };

  // Expect a token of a given type. If found, consume it, otherwise,
  // raise an unexpected token error at given pos.

  pp.expect = function (type, pos) {
    return this.eat(type) || this.unexpected(pos, type);
  };

  // Raise an unexpected token error. Can take the expected token type
  // instead of a message string.

  pp.unexpected = function (pos) {
    var messageOrType = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "Unexpected token";

    if (messageOrType && (typeof messageOrType === "undefined" ? "undefined" : _typeof(messageOrType)) === "object" && messageOrType.label) {
      messageOrType = "Unexpected token, expected " + messageOrType.label;
    }
    this.raise(pos != null ? pos : this.state.start, messageOrType);
  };

  /* eslint max-len: 0 */

  var pp$1 = Parser.prototype;

  // ### Statement parsing

  // Parse a program. Initializes the parser, reads any number of
  // statements, and wraps them in a Program node.  Optionally takes a
  // `program` argument.  If present, the statements will be appended
  // to its body instead of creating a new node.

  pp$1.parseTopLevel = function (file, program) {
    program.sourceType = this.options.sourceType;

    this.parseBlockBody(program, true, true, types.eof);

    file.program = this.finishNode(program, "Program");
    file.comments = this.state.comments;
    file.tokens = this.state.tokens;

    return this.finishNode(file, "File");
  };

  var loopLabel = { kind: "loop" };
  var switchLabel = { kind: "switch" };

  // TODO

  pp$1.stmtToDirective = function (stmt) {
    var expr = stmt.expression;

    var directiveLiteral = this.startNodeAt(expr.start, expr.loc.start);
    var directive = this.startNodeAt(stmt.start, stmt.loc.start);

    var raw = this.input.slice(expr.start, expr.end);
    var val = directiveLiteral.value = raw.slice(1, -1); // remove quotes

    this.addExtra(directiveLiteral, "raw", raw);
    this.addExtra(directiveLiteral, "rawValue", val);

    directive.value = this.finishNodeAt(directiveLiteral, "DirectiveLiteral", expr.end, expr.loc.end);

    return this.finishNodeAt(directive, "Directive", stmt.end, stmt.loc.end);
  };

  // Parse a single statement.
  //
  // If expecting a statement and finding a slash operator, parse a
  // regular expression literal. This is to handle cases like
  // `if (foo) /blah/.exec(foo)`, where looking at the previous token
  // does not help.

  pp$1.parseStatement = function (declaration, topLevel) {
    if (this.match(types.at)) {
      this.parseDecorators(true);
    }

    var starttype = this.state.type;
    var node = this.startNode();

    // Most types of statements are recognized by the keyword they
    // start with. Many are trivial to parse, some require a bit of
    // complexity.

    switch (starttype) {
      case types._break:case types._continue:
        return this.parseBreakContinueStatement(node, starttype.keyword);
      case types._debugger:
        return this.parseDebuggerStatement(node);
      case types._do:
        return this.parseDoStatement(node);
      case types._for:
        return this.parseForStatement(node);
      case types._function:
        if (!declaration) this.unexpected();
        return this.parseFunctionStatement(node);

      case types._class:
        if (!declaration) this.unexpected();
        return this.parseClass(node, true);

      case types._if:
        return this.parseIfStatement(node);
      case types._return:
        return this.parseReturnStatement(node);
      case types._switch:
        return this.parseSwitchStatement(node);
      case types._throw:
        return this.parseThrowStatement(node);
      case types._try:
        return this.parseTryStatement(node);

      case types._let:
      case types._const:
        if (!declaration) this.unexpected(); // NOTE: falls through to _var

      case types._var:
        return this.parseVarStatement(node, starttype);

      case types._while:
        return this.parseWhileStatement(node);
      case types._with:
        return this.parseWithStatement(node);
      case types.braceL:
        return this.parseBlock();
      case types.semi:
        return this.parseEmptyStatement(node);
      case types._export:
      case types._import:
        if (this.hasPlugin("dynamicImport") && this.lookahead().type === types.parenL) break;

        if (!this.options.allowImportExportEverywhere) {
          if (!topLevel) {
            this.raise(this.state.start, "'import' and 'export' may only appear at the top level");
          }

          if (!this.inModule) {
            this.raise(this.state.start, "'import' and 'export' may appear only with 'sourceType: module'");
          }
        }
        return starttype === types._import ? this.parseImport(node) : this.parseExport(node);

      case types.name:
        if (this.state.value === "async") {
          // peek ahead and see if next token is a function
          var state = this.state.clone();
          this.next();
          if (this.match(types._function) && !this.canInsertSemicolon()) {
            this.expect(types._function);
            return this.parseFunction(node, true, false, true);
          } else {
            this.state = state;
          }
        }
    }

    // If the statement does not start with a statement keyword or a
    // brace, it's an ExpressionStatement or LabeledStatement. We
    // simply start parsing an expression, and afterwards, if the
    // next token is a colon and the expression was a simple
    // Identifier node, we switch to interpreting it as a label.
    var maybeName = this.state.value;
    var expr = this.parseExpression();

    if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon)) {
      return this.parseLabeledStatement(node, maybeName, expr);
    } else {
      return this.parseExpressionStatement(node, expr);
    }
  };

  pp$1.takeDecorators = function (node) {
    if (this.state.decorators.length) {
      node.decorators = this.state.decorators;
      this.state.decorators = [];
    }
  };

  pp$1.parseDecorators = function (allowExport) {
    while (this.match(types.at)) {
      var decorator = this.parseDecorator();
      this.state.decorators.push(decorator);
    }

    if (allowExport && this.match(types._export)) {
      return;
    }

    if (!this.match(types._class)) {
      this.raise(this.state.start, "Leading decorators must be attached to a class declaration");
    }
  };

  pp$1.parseDecorator = function () {
    if (!this.hasPlugin("decorators")) {
      this.unexpected();
    }
    var node = this.startNode();
    this.next();
    node.expression = this.parseMaybeAssign();
    return this.finishNode(node, "Decorator");
  };

  pp$1.parseBreakContinueStatement = function (node, keyword) {
    var isBreak = keyword === "break";
    this.next();

    if (this.isLineTerminator()) {
      node.label = null;
    } else if (!this.match(types.name)) {
      this.unexpected();
    } else {
      node.label = this.parseIdentifier();
      this.semicolon();
    }

    // Verify that there is an actual destination to break or
    // continue to.
    var i = void 0;
    for (i = 0; i < this.state.labels.length; ++i) {
      var lab = this.state.labels[i];
      if (node.label == null || lab.name === node.label.name) {
        if (lab.kind != null && (isBreak || lab.kind === "loop")) break;
        if (node.label && isBreak) break;
      }
    }
    if (i === this.state.labels.length) this.raise(node.start, "Unsyntactic " + keyword);
    return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement");
  };

  pp$1.parseDebuggerStatement = function (node) {
    this.next();
    this.semicolon();
    return this.finishNode(node, "DebuggerStatement");
  };

  pp$1.parseDoStatement = function (node) {
    this.next();
    this.state.labels.push(loopLabel);
    node.body = this.parseStatement(false);
    this.state.labels.pop();
    this.expect(types._while);
    node.test = this.parseParenExpression();
    this.eat(types.semi);
    return this.finishNode(node, "DoWhileStatement");
  };

  // Disambiguating between a `for` and a `for`/`in` or `for`/`of`
  // loop is non-trivial. Basically, we have to parse the init `var`
  // statement or expression, disallowing the `in` operator (see
  // the second parameter to `parseExpression`), and then check
  // whether the next token is `in` or `of`. When there is no init
  // part (semicolon immediately after the opening parenthesis), it
  // is a regular `for` loop.

  pp$1.parseForStatement = function (node) {
    this.next();
    this.state.labels.push(loopLabel);

    var forAwait = false;
    if (this.hasPlugin("asyncGenerators") && this.state.inAsync && this.isContextual("await")) {
      forAwait = true;
      this.next();
    }
    this.expect(types.parenL);

    if (this.match(types.semi)) {
      if (forAwait) {
        this.unexpected();
      }
      return this.parseFor(node, null);
    }

    if (this.match(types._var) || this.match(types._let) || this.match(types._const)) {
      var _init = this.startNode();
      var varKind = this.state.type;
      this.next();
      this.parseVar(_init, true, varKind);
      this.finishNode(_init, "VariableDeclaration");

      if (this.match(types._in) || this.isContextual("of")) {
        if (_init.declarations.length === 1 && !_init.declarations[0].init) {
          return this.parseForIn(node, _init, forAwait);
        }
      }
      if (forAwait) {
        this.unexpected();
      }
      return this.parseFor(node, _init);
    }

    var refShorthandDefaultPos = { start: 0 };
    var init = this.parseExpression(true, refShorthandDefaultPos);
    if (this.match(types._in) || this.isContextual("of")) {
      var description = this.isContextual("of") ? "for-of statement" : "for-in statement";
      this.toAssignable(init, undefined, description);
      this.checkLVal(init, undefined, undefined, description);
      return this.parseForIn(node, init, forAwait);
    } else if (refShorthandDefaultPos.start) {
      this.unexpected(refShorthandDefaultPos.start);
    }
    if (forAwait) {
      this.unexpected();
    }
    return this.parseFor(node, init);
  };

  pp$1.parseFunctionStatement = function (node) {
    this.next();
    return this.parseFunction(node, true);
  };

  pp$1.parseIfStatement = function (node) {
    this.next();
    node.test = this.parseParenExpression();
    node.consequent = this.parseStatement(false);
    node.alternate = this.eat(types._else) ? this.parseStatement(false) : null;
    return this.finishNode(node, "IfStatement");
  };

  pp$1.parseReturnStatement = function (node) {
    if (!this.state.inFunction && !this.options.allowReturnOutsideFunction) {
      this.raise(this.state.start, "'return' outside of function");
    }

    this.next();

    // In `return` (and `break`/`continue`), the keywords with
    // optional arguments, we eagerly look for a semicolon or the
    // possibility to insert one.

    if (this.isLineTerminator()) {
      node.argument = null;
    } else {
      node.argument = this.parseExpression();
      this.semicolon();
    }

    return this.finishNode(node, "ReturnStatement");
  };

  pp$1.parseSwitchStatement = function (node) {
    this.next();
    node.discriminant = this.parseParenExpression();
    node.cases = [];
    this.expect(types.braceL);
    this.state.labels.push(switchLabel);

    // Statements under must be grouped (by label) in SwitchCase
    // nodes. `cur` is used to keep the node that we are currently
    // adding statements to.

    var cur = void 0;
    for (var sawDefault; !this.match(types.braceR);) {
      if (this.match(types._case) || this.match(types._default)) {
        var isCase = this.match(types._case);
        if (cur) this.finishNode(cur, "SwitchCase");
        node.cases.push(cur = this.startNode());
        cur.consequent = [];
        this.next();
        if (isCase) {
          cur.test = this.parseExpression();
        } else {
          if (sawDefault) this.raise(this.state.lastTokStart, "Multiple default clauses");
          sawDefault = true;
          cur.test = null;
        }
        this.expect(types.colon);
      } else {
        if (cur) {
          cur.consequent.push(this.parseStatement(true));
        } else {
          this.unexpected();
        }
      }
    }
    if (cur) this.finishNode(cur, "SwitchCase");
    this.next(); // Closing brace
    this.state.labels.pop();
    return this.finishNode(node, "SwitchStatement");
  };

  pp$1.parseThrowStatement = function (node) {
    this.next();
    if (lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start))) this.raise(this.state.lastTokEnd, "Illegal newline after throw");
    node.argument = this.parseExpression();
    this.semicolon();
    return this.finishNode(node, "ThrowStatement");
  };

  // Reused empty array added for node fields that are always empty.

  var empty = [];

  pp$1.parseTryStatement = function (node) {
    this.next();

    node.block = this.parseBlock();
    node.handler = null;

    if (this.match(types._catch)) {
      var clause = this.startNode();
      this.next();

      this.expect(types.parenL);
      clause.param = this.parseBindingAtom();
      this.checkLVal(clause.param, true, Object.create(null), "catch clause");
      this.expect(types.parenR);

      clause.body = this.parseBlock();
      node.handler = this.finishNode(clause, "CatchClause");
    }

    node.guardedHandlers = empty;
    node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;

    if (!node.handler && !node.finalizer) {
      this.raise(node.start, "Missing catch or finally clause");
    }

    return this.finishNode(node, "TryStatement");
  };

  pp$1.parseVarStatement = function (node, kind) {
    this.next();
    this.parseVar(node, false, kind);
    this.semicolon();
    return this.finishNode(node, "VariableDeclaration");
  };

  pp$1.parseWhileStatement = function (node) {
    this.next();
    node.test = this.parseParenExpression();
    this.state.labels.push(loopLabel);
    node.body = this.parseStatement(false);
    this.state.labels.pop();
    return this.finishNode(node, "WhileStatement");
  };

  pp$1.parseWithStatement = function (node) {
    if (this.state.strict) this.raise(this.state.start, "'with' in strict mode");
    this.next();
    node.object = this.parseParenExpression();
    node.body = this.parseStatement(false);
    return this.finishNode(node, "WithStatement");
  };

  pp$1.parseEmptyStatement = function (node) {
    this.next();
    return this.finishNode(node, "EmptyStatement");
  };

  pp$1.parseLabeledStatement = function (node, maybeName, expr) {
    for (var _iterator = this.state.labels, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var _label = _ref;

      if (_label.name === maybeName) {
        this.raise(expr.start, "Label '" + maybeName + "' is already declared");
      }
    }

    var kind = this.state.type.isLoop ? "loop" : this.match(types._switch) ? "switch" : null;
    for (var i = this.state.labels.length - 1; i >= 0; i--) {
      var label = this.state.labels[i];
      if (label.statementStart === node.start) {
        label.statementStart = this.state.start;
        label.kind = kind;
      } else {
        break;
      }
    }

    this.state.labels.push({ name: maybeName, kind: kind, statementStart: this.state.start });
    node.body = this.parseStatement(true);
    this.state.labels.pop();
    node.label = expr;
    return this.finishNode(node, "LabeledStatement");
  };

  pp$1.parseExpressionStatement = function (node, expr) {
    node.expression = expr;
    this.semicolon();
    return this.finishNode(node, "ExpressionStatement");
  };

  // Parse a semicolon-enclosed block of statements, handling `"use
  // strict"` declarations when `allowStrict` is true (used for
  // function bodies).

  pp$1.parseBlock = function (allowDirectives) {
    var node = this.startNode();
    this.expect(types.braceL);
    this.parseBlockBody(node, allowDirectives, false, types.braceR);
    return this.finishNode(node, "BlockStatement");
  };

  pp$1.isValidDirective = function (stmt) {
    return stmt.type === "ExpressionStatement" && stmt.expression.type === "StringLiteral" && !stmt.expression.extra.parenthesized;
  };

  pp$1.parseBlockBody = function (node, allowDirectives, topLevel, end) {
    node.body = [];
    node.directives = [];

    var parsedNonDirective = false;
    var oldStrict = void 0;
    var octalPosition = void 0;

    while (!this.eat(end)) {
      if (!parsedNonDirective && this.state.containsOctal && !octalPosition) {
        octalPosition = this.state.octalPosition;
      }

      var stmt = this.parseStatement(true, topLevel);

      if (allowDirectives && !parsedNonDirective && this.isValidDirective(stmt)) {
        var directive = this.stmtToDirective(stmt);
        node.directives.push(directive);

        if (oldStrict === undefined && directive.value.value === "use strict") {
          oldStrict = this.state.strict;
          this.setStrict(true);

          if (octalPosition) {
            this.raise(octalPosition, "Octal literal in strict mode");
          }
        }

        continue;
      }

      parsedNonDirective = true;
      node.body.push(stmt);
    }

    if (oldStrict === false) {
      this.setStrict(false);
    }
  };

  // Parse a regular `for` loop. The disambiguation code in
  // `parseStatement` will already have parsed the init statement or
  // expression.

  pp$1.parseFor = function (node, init) {
    node.init = init;
    this.expect(types.semi);
    node.test = this.match(types.semi) ? null : this.parseExpression();
    this.expect(types.semi);
    node.update = this.match(types.parenR) ? null : this.parseExpression();
    this.expect(types.parenR);
    node.body = this.parseStatement(false);
    this.state.labels.pop();
    return this.finishNode(node, "ForStatement");
  };

  // Parse a `for`/`in` and `for`/`of` loop, which are almost
  // same from parser's perspective.

  pp$1.parseForIn = function (node, init, forAwait) {
    var type = void 0;
    if (forAwait) {
      this.eatContextual("of");
      type = "ForAwaitStatement";
    } else {
      type = this.match(types._in) ? "ForInStatement" : "ForOfStatement";
      this.next();
    }
    node.left = init;
    node.right = this.parseExpression();
    this.expect(types.parenR);
    node.body = this.parseStatement(false);
    this.state.labels.pop();
    return this.finishNode(node, type);
  };

  // Parse a list of variable declarations.

  pp$1.parseVar = function (node, isFor, kind) {
    node.declarations = [];
    node.kind = kind.keyword;
    for (;;) {
      var decl = this.startNode();
      this.parseVarHead(decl);
      if (this.eat(types.eq)) {
        decl.init = this.parseMaybeAssign(isFor);
      } else if (kind === types._const && !(this.match(types._in) || this.isContextual("of"))) {
        this.unexpected();
      } else if (decl.id.type !== "Identifier" && !(isFor && (this.match(types._in) || this.isContextual("of")))) {
        this.raise(this.state.lastTokEnd, "Complex binding patterns require an initialization value");
      } else {
        decl.init = null;
      }
      node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
      if (!this.eat(types.comma)) break;
    }
    return node;
  };

  pp$1.parseVarHead = function (decl) {
    decl.id = this.parseBindingAtom();
    this.checkLVal(decl.id, true, undefined, "variable declaration");
  };

  // Parse a function declaration or literal (depending on the
  // `isStatement` parameter).

  pp$1.parseFunction = function (node, isStatement, allowExpressionBody, isAsync, optionalId) {
    var oldInMethod = this.state.inMethod;
    this.state.inMethod = false;

    this.initFunction(node, isAsync);

    if (this.match(types.star)) {
      if (node.async && !this.hasPlugin("asyncGenerators")) {
        this.unexpected();
      } else {
        node.generator = true;
        this.next();
      }
    }

    if (isStatement && !optionalId && !this.match(types.name) && !this.match(types._yield)) {
      this.unexpected();
    }

    if (this.match(types.name) || this.match(types._yield)) {
      node.id = this.parseBindingIdentifier();
    }

    this.parseFunctionParams(node);
    this.parseFunctionBody(node, allowExpressionBody);

    this.state.inMethod = oldInMethod;

    return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression");
  };

  pp$1.parseFunctionParams = function (node) {
    this.expect(types.parenL);
    node.params = this.parseBindingList(types.parenR);
  };

  // Parse a class declaration or literal (depending on the
  // `isStatement` parameter).

  pp$1.parseClass = function (node, isStatement, optionalId) {
    this.next();
    this.takeDecorators(node);
    this.parseClassId(node, isStatement, optionalId);
    this.parseClassSuper(node);
    this.parseClassBody(node);
    return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression");
  };

  pp$1.isClassProperty = function () {
    return this.match(types.eq) || this.match(types.semi) || this.match(types.braceR);
  };

  pp$1.isClassMethod = function () {
    return this.match(types.parenL);
  };

  pp$1.isNonstaticConstructor = function (method) {
    return !method.computed && !method.static && (method.key.name === "constructor" || // Identifier
    method.key.value === "constructor" // Literal
    );
  };

  pp$1.parseClassBody = function (node) {
    // class bodies are implicitly strict
    var oldStrict = this.state.strict;
    this.state.strict = true;

    var hadConstructorCall = false;
    var hadConstructor = false;
    var decorators = [];
    var classBody = this.startNode();

    classBody.body = [];

    this.expect(types.braceL);

    while (!this.eat(types.braceR)) {
      if (this.eat(types.semi)) {
        if (decorators.length > 0) {
          this.raise(this.state.lastTokEnd, "Decorators must not be followed by a semicolon");
        }
        continue;
      }

      if (this.match(types.at)) {
        decorators.push(this.parseDecorator());
        continue;
      }

      var method = this.startNode();

      // steal the decorators if there are any
      if (decorators.length) {
        method.decorators = decorators;
        decorators = [];
      }

      method.static = false;
      if (this.match(types.name) && this.state.value === "static") {
        var key = this.parseIdentifier(true); // eats 'static'
        if (this.isClassMethod()) {
          // a method named 'static'
          method.kind = "method";
          method.computed = false;
          method.key = key;
          this.parseClassMethod(classBody, method, false, false);
          continue;
        } else if (this.isClassProperty()) {
          // a property named 'static'
          method.computed = false;
          method.key = key;
          classBody.body.push(this.parseClassProperty(method));
          continue;
        }
        // otherwise something static
        method.static = true;
      }

      if (this.eat(types.star)) {
        // a generator
        method.kind = "method";
        this.parsePropertyName(method);
        if (this.isNonstaticConstructor(method)) {
          this.raise(method.key.start, "Constructor can't be a generator");
        }
        if (!method.computed && method.static && (method.key.name === "prototype" || method.key.value === "prototype")) {
          this.raise(method.key.start, "Classes may not have static property named prototype");
        }
        this.parseClassMethod(classBody, method, true, false);
      } else {
        var isSimple = this.match(types.name);
        var _key = this.parsePropertyName(method);
        if (!method.computed && method.static && (method.key.name === "prototype" || method.key.value === "prototype")) {
          this.raise(method.key.start, "Classes may not have static property named prototype");
        }
        if (this.isClassMethod()) {
          // a normal method
          if (this.isNonstaticConstructor(method)) {
            if (hadConstructor) {
              this.raise(_key.start, "Duplicate constructor in the same class");
            } else if (method.decorators) {
              this.raise(method.start, "You can't attach decorators to a class constructor");
            }
            hadConstructor = true;
            method.kind = "constructor";
          } else {
            method.kind = "method";
          }
          this.parseClassMethod(classBody, method, false, false);
        } else if (this.isClassProperty()) {
          // a normal property
          if (this.isNonstaticConstructor(method)) {
            this.raise(method.key.start, "Classes may not have a non-static field named 'constructor'");
          }
          classBody.body.push(this.parseClassProperty(method));
        } else if (isSimple && _key.name === "async" && !this.isLineTerminator()) {
          // an async method
          var isGenerator = this.hasPlugin("asyncGenerators") && this.eat(types.star);
          method.kind = "method";
          this.parsePropertyName(method);
          if (this.isNonstaticConstructor(method)) {
            this.raise(method.key.start, "Constructor can't be an async function");
          }
          this.parseClassMethod(classBody, method, isGenerator, true);
        } else if (isSimple && (_key.name === "get" || _key.name === "set") && !(this.isLineTerminator() && this.match(types.star))) {
          // `get\n*` is an uninitialized property named 'get' followed by a generator.
          // a getter or setter
          method.kind = _key.name;
          this.parsePropertyName(method);
          if (this.isNonstaticConstructor(method)) {
            this.raise(method.key.start, "Constructor can't have get/set modifier");
          }
          this.parseClassMethod(classBody, method, false, false);
          this.checkGetterSetterParamCount(method);
        } else if (this.hasPlugin("classConstructorCall") && isSimple && _key.name === "call" && this.match(types.name) && this.state.value === "constructor") {
          // a (deprecated) call constructor
          if (hadConstructorCall) {
            this.raise(method.start, "Duplicate constructor call in the same class");
          } else if (method.decorators) {
            this.raise(method.start, "You can't attach decorators to a class constructor");
          }
          hadConstructorCall = true;
          method.kind = "constructorCall";
          this.parsePropertyName(method); // consume "constructor" and make it the method's name
          this.parseClassMethod(classBody, method, false, false);
        } else if (this.isLineTerminator()) {
          // an uninitialized class property (due to ASI, since we don't otherwise recognize the next token)
          if (this.isNonstaticConstructor(method)) {
            this.raise(method.key.start, "Classes may not have a non-static field named 'constructor'");
          }
          classBody.body.push(this.parseClassProperty(method));
        } else {
          this.unexpected();
        }
      }
    }

    if (decorators.length) {
      this.raise(this.state.start, "You have trailing decorators with no method");
    }

    node.body = this.finishNode(classBody, "ClassBody");

    this.state.strict = oldStrict;
  };

  pp$1.parseClassProperty = function (node) {
    this.state.inClassProperty = true;
    if (this.match(types.eq)) {
      if (!this.hasPlugin("classProperties")) this.unexpected();
      this.next();
      node.value = this.parseMaybeAssign();
    } else {
      node.value = null;
    }
    this.semicolon();
    this.state.inClassProperty = false;
    return this.finishNode(node, "ClassProperty");
  };

  pp$1.parseClassMethod = function (classBody, method, isGenerator, isAsync) {
    this.parseMethod(method, isGenerator, isAsync);
    classBody.body.push(this.finishNode(method, "ClassMethod"));
  };

  pp$1.parseClassId = function (node, isStatement, optionalId) {
    if (this.match(types.name)) {
      node.id = this.parseIdentifier();
    } else {
      if (optionalId || !isStatement) {
        node.id = null;
      } else {
        this.unexpected();
      }
    }
  };

  pp$1.parseClassSuper = function (node) {
    node.superClass = this.eat(types._extends) ? this.parseExprSubscripts() : null;
  };

  // Parses module export declaration.

  pp$1.parseExport = function (node) {
    this.next();
    // export * from '...'
    if (this.match(types.star)) {
      var specifier = this.startNode();
      this.next();
      if (this.hasPlugin("exportExtensions") && this.eatContextual("as")) {
        specifier.exported = this.parseIdentifier();
        node.specifiers = [this.finishNode(specifier, "ExportNamespaceSpecifier")];
        this.parseExportSpecifiersMaybe(node);
        this.parseExportFrom(node, true);
      } else {
        this.parseExportFrom(node, true);
        return this.finishNode(node, "ExportAllDeclaration");
      }
    } else if (this.hasPlugin("exportExtensions") && this.isExportDefaultSpecifier()) {
      var _specifier = this.startNode();
      _specifier.exported = this.parseIdentifier(true);
      node.specifiers = [this.finishNode(_specifier, "ExportDefaultSpecifier")];
      if (this.match(types.comma) && this.lookahead().type === types.star) {
        this.expect(types.comma);
        var _specifier2 = this.startNode();
        this.expect(types.star);
        this.expectContextual("as");
        _specifier2.exported = this.parseIdentifier();
        node.specifiers.push(this.finishNode(_specifier2, "ExportNamespaceSpecifier"));
      } else {
        this.parseExportSpecifiersMaybe(node);
      }
      this.parseExportFrom(node, true);
    } else if (this.eat(types._default)) {
      // export default ...
      var expr = this.startNode();
      var needsSemi = false;
      if (this.eat(types._function)) {
        expr = this.parseFunction(expr, true, false, false, true);
      } else if (this.match(types._class)) {
        expr = this.parseClass(expr, true, true);
      } else {
        needsSemi = true;
        expr = this.parseMaybeAssign();
      }
      node.declaration = expr;
      if (needsSemi) this.semicolon();
      this.checkExport(node, true, true);
      return this.finishNode(node, "ExportDefaultDeclaration");
    } else if (this.shouldParseExportDeclaration()) {
      node.specifiers = [];
      node.source = null;
      node.declaration = this.parseExportDeclaration(node);
    } else {
      // export { x, y as z } [from '...']
      node.declaration = null;
      node.specifiers = this.parseExportSpecifiers();
      this.parseExportFrom(node);
    }
    this.checkExport(node, true);
    return this.finishNode(node, "ExportNamedDeclaration");
  };

  pp$1.parseExportDeclaration = function () {
    return this.parseStatement(true);
  };

  pp$1.isExportDefaultSpecifier = function () {
    if (this.match(types.name)) {
      return this.state.value !== "async";
    }

    if (!this.match(types._default)) {
      return false;
    }

    var lookahead = this.lookahead();
    return lookahead.type === types.comma || lookahead.type === types.name && lookahead.value === "from";
  };

  pp$1.parseExportSpecifiersMaybe = function (node) {
    if (this.eat(types.comma)) {
      node.specifiers = node.specifiers.concat(this.parseExportSpecifiers());
    }
  };

  pp$1.parseExportFrom = function (node, expect) {
    if (this.eatContextual("from")) {
      node.source = this.match(types.string) ? this.parseExprAtom() : this.unexpected();
      this.checkExport(node);
    } else {
      if (expect) {
        this.unexpected();
      } else {
        node.source = null;
      }
    }

    this.semicolon();
  };

  pp$1.shouldParseExportDeclaration = function () {
    return this.state.type.keyword === "var" || this.state.type.keyword === "const" || this.state.type.keyword === "let" || this.state.type.keyword === "function" || this.state.type.keyword === "class" || this.isContextual("async");
  };

  pp$1.checkExport = function (node, checkNames, isDefault) {
    if (checkNames) {
      // Check for duplicate exports
      if (isDefault) {
        // Default exports
        this.checkDuplicateExports(node, "default");
      } else if (node.specifiers && node.specifiers.length) {
        // Named exports
        for (var _iterator2 = node.specifiers, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
          var _ref2;

          if (_isArray2) {
            if (_i2 >= _iterator2.length) break;
            _ref2 = _iterator2[_i2++];
          } else {
            _i2 = _iterator2.next();
            if (_i2.done) break;
            _ref2 = _i2.value;
          }

          var specifier = _ref2;

          this.checkDuplicateExports(specifier, specifier.exported.name);
        }
      } else if (node.declaration) {
        // Exported declarations
        if (node.declaration.type === "FunctionDeclaration" || node.declaration.type === "ClassDeclaration") {
          this.checkDuplicateExports(node, node.declaration.id.name);
        } else if (node.declaration.type === "VariableDeclaration") {
          for (var _iterator3 = node.declaration.declarations, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
            var _ref3;

            if (_isArray3) {
              if (_i3 >= _iterator3.length) break;
              _ref3 = _iterator3[_i3++];
            } else {
              _i3 = _iterator3.next();
              if (_i3.done) break;
              _ref3 = _i3.value;
            }

            var declaration = _ref3;

            this.checkDeclaration(declaration.id);
          }
        }
      }
    }

    if (this.state.decorators.length) {
      var isClass = node.declaration && (node.declaration.type === "ClassDeclaration" || node.declaration.type === "ClassExpression");
      if (!node.declaration || !isClass) {
        this.raise(node.start, "You can only use decorators on an export when exporting a class");
      }
      this.takeDecorators(node.declaration);
    }
  };

  pp$1.checkDeclaration = function (node) {
    if (node.type === "ObjectPattern") {
      for (var _iterator4 = node.properties, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
        var _ref4;

        if (_isArray4) {
          if (_i4 >= _iterator4.length) break;
          _ref4 = _iterator4[_i4++];
        } else {
          _i4 = _iterator4.next();
          if (_i4.done) break;
          _ref4 = _i4.value;
        }

        var prop = _ref4;

        this.checkDeclaration(prop);
      }
    } else if (node.type === "ArrayPattern") {
      for (var _iterator5 = node.elements, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
        var _ref5;

        if (_isArray5) {
          if (_i5 >= _iterator5.length) break;
          _ref5 = _iterator5[_i5++];
        } else {
          _i5 = _iterator5.next();
          if (_i5.done) break;
          _ref5 = _i5.value;
        }

        var elem = _ref5;

        if (elem) {
          this.checkDeclaration(elem);
        }
      }
    } else if (node.type === "ObjectProperty") {
      this.checkDeclaration(node.value);
    } else if (node.type === "RestElement" || node.type === "RestProperty") {
      this.checkDeclaration(node.argument);
    } else if (node.type === "Identifier") {
      this.checkDuplicateExports(node, node.name);
    }
  };

  pp$1.checkDuplicateExports = function (node, name) {
    if (this.state.exportedIdentifiers.indexOf(name) > -1) {
      this.raiseDuplicateExportError(node, name);
    }
    this.state.exportedIdentifiers.push(name);
  };

  pp$1.raiseDuplicateExportError = function (node, name) {
    this.raise(node.start, name === "default" ? "Only one default export allowed per module." : "`" + name + "` has already been exported. Exported identifiers must be unique.");
  };

  // Parses a comma-separated list of module exports.

  pp$1.parseExportSpecifiers = function () {
    var nodes = [];
    var first = true;
    var needsFrom = void 0;

    // export { x, y as z } [from '...']
    this.expect(types.braceL);

    while (!this.eat(types.braceR)) {
      if (first) {
        first = false;
      } else {
        this.expect(types.comma);
        if (this.eat(types.braceR)) break;
      }

      var isDefault = this.match(types._default);
      if (isDefault && !needsFrom) needsFrom = true;

      var node = this.startNode();
      node.local = this.parseIdentifier(isDefault);
      node.exported = this.eatContextual("as") ? this.parseIdentifier(true) : node.local.__clone();
      nodes.push(this.finishNode(node, "ExportSpecifier"));
    }

    // https://github.com/ember-cli/ember-cli/pull/3739
    if (needsFrom && !this.isContextual("from")) {
      this.unexpected();
    }

    return nodes;
  };

  // Parses import declaration.

  pp$1.parseImport = function (node) {
    this.eat(types._import);

    // import '...'
    if (this.match(types.string)) {
      node.specifiers = [];
      node.source = this.parseExprAtom();
    } else {
      node.specifiers = [];
      this.parseImportSpecifiers(node);
      this.expectContextual("from");
      node.source = this.match(types.string) ? this.parseExprAtom() : this.unexpected();
    }
    this.semicolon();
    return this.finishNode(node, "ImportDeclaration");
  };

  // Parses a comma-separated list of module imports.

  pp$1.parseImportSpecifiers = function (node) {
    var first = true;
    if (this.match(types.name)) {
      // import defaultObj, { x, y as z } from '...'
      var startPos = this.state.start;
      var startLoc = this.state.startLoc;
      node.specifiers.push(this.parseImportSpecifierDefault(this.parseIdentifier(), startPos, startLoc));
      if (!this.eat(types.comma)) return;
    }

    if (this.match(types.star)) {
      var specifier = this.startNode();
      this.next();
      this.expectContextual("as");
      specifier.local = this.parseIdentifier();
      this.checkLVal(specifier.local, true, undefined, "import namespace specifier");
      node.specifiers.push(this.finishNode(specifier, "ImportNamespaceSpecifier"));
      return;
    }

    this.expect(types.braceL);
    while (!this.eat(types.braceR)) {
      if (first) {
        first = false;
      } else {
        // Detect an attempt to deep destructure
        if (this.eat(types.colon)) {
          this.unexpected(null, "ES2015 named imports do not destructure. Use another statement for destructuring after the import.");
        }

        this.expect(types.comma);
        if (this.eat(types.braceR)) break;
      }

      this.parseImportSpecifier(node);
    }
  };

  pp$1.parseImportSpecifier = function (node) {
    var specifier = this.startNode();
    specifier.imported = this.parseIdentifier(true);
    if (this.eatContextual("as")) {
      specifier.local = this.parseIdentifier();
    } else {
      this.checkReservedWord(specifier.imported.name, specifier.start, true, true);
      specifier.local = specifier.imported.__clone();
    }
    this.checkLVal(specifier.local, true, undefined, "import specifier");
    node.specifiers.push(this.finishNode(specifier, "ImportSpecifier"));
  };

  pp$1.parseImportSpecifierDefault = function (id, startPos, startLoc) {
    var node = this.startNodeAt(startPos, startLoc);
    node.local = id;
    this.checkLVal(node.local, true, undefined, "default import specifier");
    return this.finishNode(node, "ImportDefaultSpecifier");
  };

  var pp$2 = Parser.prototype;

  // Convert existing expression atom to assignable pattern
  // if possible.

  pp$2.toAssignable = function (node, isBinding, contextDescription) {
    if (node) {
      switch (node.type) {
        case "Identifier":
        case "ObjectPattern":
        case "ArrayPattern":
        case "AssignmentPattern":
          break;

        case "ObjectExpression":
          node.type = "ObjectPattern";
          for (var _iterator = node.properties, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
            var _ref;

            if (_isArray) {
              if (_i >= _iterator.length) break;
              _ref = _iterator[_i++];
            } else {
              _i = _iterator.next();
              if (_i.done) break;
              _ref = _i.value;
            }

            var prop = _ref;

            if (prop.type === "ObjectMethod") {
              if (prop.kind === "get" || prop.kind === "set") {
                this.raise(prop.key.start, "Object pattern can't contain getter or setter");
              } else {
                this.raise(prop.key.start, "Object pattern can't contain methods");
              }
            } else {
              this.toAssignable(prop, isBinding, "object destructuring pattern");
            }
          }
          break;

        case "ObjectProperty":
          this.toAssignable(node.value, isBinding, contextDescription);
          break;

        case "SpreadProperty":
          node.type = "RestProperty";
          var arg = node.argument;
          this.toAssignable(arg, isBinding, contextDescription);
          break;

        case "ArrayExpression":
          node.type = "ArrayPattern";
          this.toAssignableList(node.elements, isBinding, contextDescription);
          break;

        case "AssignmentExpression":
          if (node.operator === "=") {
            node.type = "AssignmentPattern";
            delete node.operator;
          } else {
            this.raise(node.left.end, "Only '=' operator can be used for specifying default value.");
          }
          break;

        case "MemberExpression":
          if (!isBinding) break;

        default:
          {
            var message = "Invalid left-hand side" + (contextDescription ? " in " + contextDescription : /* istanbul ignore next */"expression");
            this.raise(node.start, message);
          }
      }
    }
    return node;
  };

  // Convert list of expression atoms to binding list.

  pp$2.toAssignableList = function (exprList, isBinding, contextDescription) {
    var end = exprList.length;
    if (end) {
      var last = exprList[end - 1];
      if (last && last.type === "RestElement") {
        --end;
      } else if (last && last.type === "SpreadElement") {
        last.type = "RestElement";
        var arg = last.argument;
        this.toAssignable(arg, isBinding, contextDescription);
        if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern") {
          this.unexpected(arg.start);
        }
        --end;
      }
    }
    for (var i = 0; i < end; i++) {
      var elt = exprList[i];
      if (elt) this.toAssignable(elt, isBinding, contextDescription);
    }
    return exprList;
  };

  // Convert list of expression atoms to a list of

  pp$2.toReferencedList = function (exprList) {
    return exprList;
  };

  // Parses spread element.

  pp$2.parseSpread = function (refShorthandDefaultPos) {
    var node = this.startNode();
    this.next();
    node.argument = this.parseMaybeAssign(false, refShorthandDefaultPos);
    return this.finishNode(node, "SpreadElement");
  };

  pp$2.parseRest = function () {
    var node = this.startNode();
    this.next();
    node.argument = this.parseBindingIdentifier();
    return this.finishNode(node, "RestElement");
  };

  pp$2.shouldAllowYieldIdentifier = function () {
    return this.match(types._yield) && !this.state.strict && !this.state.inGenerator;
  };

  pp$2.parseBindingIdentifier = function () {
    return this.parseIdentifier(this.shouldAllowYieldIdentifier());
  };

  // Parses lvalue (assignable) atom.

  pp$2.parseBindingAtom = function () {
    switch (this.state.type) {
      case types._yield:
        if (this.state.strict || this.state.inGenerator) this.unexpected();
      // fall-through
      case types.name:
        return this.parseIdentifier(true);

      case types.bracketL:
        var node = this.startNode();
        this.next();
        node.elements = this.parseBindingList(types.bracketR, true);
        return this.finishNode(node, "ArrayPattern");

      case types.braceL:
        return this.parseObj(true);

      default:
        this.unexpected();
    }
  };

  pp$2.parseBindingList = function (close, allowEmpty) {
    var elts = [];
    var first = true;
    while (!this.eat(close)) {
      if (first) {
        first = false;
      } else {
        this.expect(types.comma);
      }
      if (allowEmpty && this.match(types.comma)) {
        elts.push(null);
      } else if (this.eat(close)) {
        break;
      } else if (this.match(types.ellipsis)) {
        elts.push(this.parseAssignableListItemTypes(this.parseRest()));
        this.expect(close);
        break;
      } else {
        var decorators = [];
        while (this.match(types.at)) {
          decorators.push(this.parseDecorator());
        }
        var left = this.parseMaybeDefault();
        if (decorators.length) {
          left.decorators = decorators;
        }
        this.parseAssignableListItemTypes(left);
        elts.push(this.parseMaybeDefault(left.start, left.loc.start, left));
      }
    }
    return elts;
  };

  pp$2.parseAssignableListItemTypes = function (param) {
    return param;
  };

  // Parses assignment pattern around given atom if possible.

  pp$2.parseMaybeDefault = function (startPos, startLoc, left) {
    startLoc = startLoc || this.state.startLoc;
    startPos = startPos || this.state.start;
    left = left || this.parseBindingAtom();
    if (!this.eat(types.eq)) return left;

    var node = this.startNodeAt(startPos, startLoc);
    node.left = left;
    node.right = this.parseMaybeAssign();
    return this.finishNode(node, "AssignmentPattern");
  };

  // Verify that a node is an lval — something that can be assigned
  // to.

  pp$2.checkLVal = function (expr, isBinding, checkClashes, contextDescription) {
    switch (expr.type) {
      case "Identifier":
        this.checkReservedWord(expr.name, expr.start, false, true);

        if (checkClashes) {
          // we need to prefix this with an underscore for the cases where we have a key of
          // `__proto__`. there's a bug in old V8 where the following wouldn't work:
          //
          //   > var obj = Object.create(null);
          //   undefined
          //   > obj.__proto__
          //   null
          //   > obj.__proto__ = true;
          //   true
          //   > obj.__proto__
          //   null
          var key = "_" + expr.name;

          if (checkClashes[key]) {
            this.raise(expr.start, "Argument name clash in strict mode");
          } else {
            checkClashes[key] = true;
          }
        }
        break;

      case "MemberExpression":
        if (isBinding) this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression");
        break;

      case "ObjectPattern":
        for (var _iterator2 = expr.properties, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
          var _ref2;

          if (_isArray2) {
            if (_i2 >= _iterator2.length) break;
            _ref2 = _iterator2[_i2++];
          } else {
            _i2 = _iterator2.next();
            if (_i2.done) break;
            _ref2 = _i2.value;
          }

          var prop = _ref2;

          if (prop.type === "ObjectProperty") prop = prop.value;
          this.checkLVal(prop, isBinding, checkClashes, "object destructuring pattern");
        }
        break;

      case "ArrayPattern":
        for (var _iterator3 = expr.elements, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
          var _ref3;

          if (_isArray3) {
            if (_i3 >= _iterator3.length) break;
            _ref3 = _iterator3[_i3++];
          } else {
            _i3 = _iterator3.next();
            if (_i3.done) break;
            _ref3 = _i3.value;
          }

          var elem = _ref3;

          if (elem) this.checkLVal(elem, isBinding, checkClashes, "array destructuring pattern");
        }
        break;

      case "AssignmentPattern":
        this.checkLVal(expr.left, isBinding, checkClashes, "assignment pattern");
        break;

      case "RestProperty":
        this.checkLVal(expr.argument, isBinding, checkClashes, "rest property");
        break;

      case "RestElement":
        this.checkLVal(expr.argument, isBinding, checkClashes, "rest element");
        break;

      default:
        {
          var message = (isBinding ? /* istanbul ignore next */"Binding invalid" : "Invalid") + " left-hand side" + (contextDescription ? " in " + contextDescription : /* istanbul ignore next */"expression");
          this.raise(expr.start, message);
        }
    }
  };

  /* eslint max-len: 0 */

  // A recursive descent parser operates by defining functions for all
  // syntactic elements, and recursively calling those, each function
  // advancing the input stream and returning an AST node. Precedence
  // of constructs (for example, the fact that `!x[1]` means `!(x[1])`
  // instead of `(!x)[1]` is handled by the fact that the parser
  // function that parses unary prefix operators is called first, and
  // in turn calls the function that parses `[]` subscripts — that
  // way, it'll receive the node for `x[1]` already parsed, and wraps
  // *that* in the unary operator node.
  //
  // Acorn uses an [operator precedence parser][opp] to handle binary
  // operator precedence, because it is much more compact than using
  // the technique outlined above, which uses different, nesting
  // functions to specify precedence, for all of the ten binary
  // precedence levels that JavaScript defines.
  //
  // [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser

  var pp$3 = Parser.prototype;

  // Check if property name clashes with already added.
  // Object/class getters and setters are not allowed to clash —
  // either with each other or with an init property — and in
  // strict mode, init properties are also not allowed to be repeated.

  pp$3.checkPropClash = function (prop, propHash) {
    if (prop.computed || prop.kind) return;

    var key = prop.key;
    // It is either an Identifier or a String/NumericLiteral
    var name = key.type === "Identifier" ? key.name : String(key.value);

    if (name === "__proto__") {
      if (propHash.proto) this.raise(key.start, "Redefinition of __proto__ property");
      propHash.proto = true;
    }
  };

  // Convenience method to parse an Expression only
  pp$3.getExpression = function () {
    this.nextToken();
    var expr = this.parseExpression();
    if (!this.match(types.eof)) {
      this.unexpected();
    }
    return expr;
  };

  // ### Expression parsing

  // These nest, from the most general expression type at the top to
  // 'atomic', nondivisible expression types at the bottom. Most of
  // the functions will simply let the function (s) below them parse,
  // and, *if* the syntactic construct they handle is present, wrap
  // the AST node that the inner parser gave them in another node.

  // Parse a full expression. The optional arguments are used to
  // forbid the `in` operator (in for loops initialization expressions)
  // and provide reference for storing '=' operator inside shorthand
  // property assignment in contexts where both object expression
  // and object pattern might appear (so it's possible to raise
  // delayed syntax error at correct position).

  pp$3.parseExpression = function (noIn, refShorthandDefaultPos) {
    var startPos = this.state.start;
    var startLoc = this.state.startLoc;
    var expr = this.parseMaybeAssign(noIn, refShorthandDefaultPos);
    if (this.match(types.comma)) {
      var node = this.startNodeAt(startPos, startLoc);
      node.expressions = [expr];
      while (this.eat(types.comma)) {
        node.expressions.push(this.parseMaybeAssign(noIn, refShorthandDefaultPos));
      }
      this.toReferencedList(node.expressions);
      return this.finishNode(node, "SequenceExpression");
    }
    return expr;
  };

  // Parse an assignment expression. This includes applications of
  // operators like `+=`.

  pp$3.parseMaybeAssign = function (noIn, refShorthandDefaultPos, afterLeftParse, refNeedsArrowPos) {
    var startPos = this.state.start;
    var startLoc = this.state.startLoc;

    if (this.match(types._yield) && this.state.inGenerator) {
      var _left = this.parseYield();
      if (afterLeftParse) _left = afterLeftParse.call(this, _left, startPos, startLoc);
      return _left;
    }

    var failOnShorthandAssign = void 0;
    if (refShorthandDefaultPos) {
      failOnShorthandAssign = false;
    } else {
      refShorthandDefaultPos = { start: 0 };
      failOnShorthandAssign = true;
    }

    if (this.match(types.parenL) || this.match(types.name)) {
      this.state.potentialArrowAt = this.state.start;
    }

    var left = this.parseMaybeConditional(noIn, refShorthandDefaultPos, refNeedsArrowPos);
    if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc);
    if (this.state.type.isAssign) {
      var node = this.startNodeAt(startPos, startLoc);
      node.operator = this.state.value;
      node.left = this.match(types.eq) ? this.toAssignable(left, undefined, "assignment expression") : left;
      refShorthandDefaultPos.start = 0; // reset because shorthand default was used correctly

      this.checkLVal(left, undefined, undefined, "assignment expression");

      if (left.extra && left.extra.parenthesized) {
        var errorMsg = void 0;
        if (left.type === "ObjectPattern") {
          errorMsg = "`({a}) = 0` use `({a} = 0)`";
        } else if (left.type === "ArrayPattern") {
          errorMsg = "`([a]) = 0` use `([a] = 0)`";
        }
        if (errorMsg) {
          this.raise(left.start, "You're trying to assign to a parenthesized expression, eg. instead of " + errorMsg);
        }
      }

      this.next();
      node.right = this.parseMaybeAssign(noIn);
      return this.finishNode(node, "AssignmentExpression");
    } else if (failOnShorthandAssign && refShorthandDefaultPos.start) {
      this.unexpected(refShorthandDefaultPos.start);
    }

    return left;
  };

  // Parse a ternary conditional (`?:`) operator.

  pp$3.parseMaybeConditional = function (noIn, refShorthandDefaultPos, refNeedsArrowPos) {
    var startPos = this.state.start;
    var startLoc = this.state.startLoc;
    var expr = this.parseExprOps(noIn, refShorthandDefaultPos);
    if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;

    return this.parseConditional(expr, noIn, startPos, startLoc, refNeedsArrowPos);
  };

  pp$3.parseConditional = function (expr, noIn, startPos, startLoc) {
    if (this.eat(types.question)) {
      var node = this.startNodeAt(startPos, startLoc);
      node.test = expr;
      node.consequent = this.parseMaybeAssign();
      this.expect(types.colon);
      node.alternate = this.parseMaybeAssign(noIn);
      return this.finishNode(node, "ConditionalExpression");
    }
    return expr;
  };

  // Start the precedence parser.

  pp$3.parseExprOps = function (noIn, refShorthandDefaultPos) {
    var startPos = this.state.start;
    var startLoc = this.state.startLoc;
    var expr = this.parseMaybeUnary(refShorthandDefaultPos);
    if (refShorthandDefaultPos && refShorthandDefaultPos.start) {
      return expr;
    } else {
      return this.parseExprOp(expr, startPos, startLoc, -1, noIn);
    }
  };

  // Parse binary operators with the operator precedence parsing
  // algorithm. `left` is the left-hand side of the operator.
  // `minPrec` provides context that allows the function to stop and
  // defer further parser to one of its callers when it encounters an
  // operator that has a lower precedence than the set it is parsing.

  pp$3.parseExprOp = function (left, leftStartPos, leftStartLoc, minPrec, noIn) {
    var prec = this.state.type.binop;
    if (prec != null && (!noIn || !this.match(types._in))) {
      if (prec > minPrec) {
        var node = this.startNodeAt(leftStartPos, leftStartLoc);
        node.left = left;
        node.operator = this.state.value;

        if (node.operator === "**" && left.type === "UnaryExpression" && left.extra && !left.extra.parenthesizedArgument && !left.extra.parenthesized) {
          this.raise(left.argument.start, "Illegal expression. Wrap left hand side or entire exponentiation in parentheses.");
        }

        var op = this.state.type;
        this.next();

        var startPos = this.state.start;
        var startLoc = this.state.startLoc;
        node.right = this.parseExprOp(this.parseMaybeUnary(), startPos, startLoc, op.rightAssociative ? prec - 1 : prec, noIn);

        this.finishNode(node, op === types.logicalOR || op === types.logicalAND ? "LogicalExpression" : "BinaryExpression");
        return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn);
      }
    }
    return left;
  };

  // Parse unary operators, both prefix and postfix.

  pp$3.parseMaybeUnary = function (refShorthandDefaultPos) {
    if (this.state.type.prefix) {
      var node = this.startNode();
      var update = this.match(types.incDec);
      node.operator = this.state.value;
      node.prefix = true;
      this.next();

      var argType = this.state.type;
      node.argument = this.parseMaybeUnary();

      this.addExtra(node, "parenthesizedArgument", argType === types.parenL && (!node.argument.extra || !node.argument.extra.parenthesized));

      if (refShorthandDefaultPos && refShorthandDefaultPos.start) {
        this.unexpected(refShorthandDefaultPos.start);
      }

      if (update) {
        this.checkLVal(node.argument, undefined, undefined, "prefix operation");
      } else if (this.state.strict && node.operator === "delete" && node.argument.type === "Identifier") {
        this.raise(node.start, "Deleting local variable in strict mode");
      }

      return this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
    }

    var startPos = this.state.start;
    var startLoc = this.state.startLoc;
    var expr = this.parseExprSubscripts(refShorthandDefaultPos);
    if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
    while (this.state.type.postfix && !this.canInsertSemicolon()) {
      var _node = this.startNodeAt(startPos, startLoc);
      _node.operator = this.state.value;
      _node.prefix = false;
      _node.argument = expr;
      this.checkLVal(expr, undefined, undefined, "postfix operation");
      this.next();
      expr = this.finishNode(_node, "UpdateExpression");
    }
    return expr;
  };

  // Parse call, dot, and `[]`-subscript expressions.

  pp$3.parseExprSubscripts = function (refShorthandDefaultPos) {
    var startPos = this.state.start;
    var startLoc = this.state.startLoc;
    var potentialArrowAt = this.state.potentialArrowAt;
    var expr = this.parseExprAtom(refShorthandDefaultPos);

    if (expr.type === "ArrowFunctionExpression" && expr.start === potentialArrowAt) {
      return expr;
    }

    if (refShorthandDefaultPos && refShorthandDefaultPos.start) {
      return expr;
    }

    return this.parseSubscripts(expr, startPos, startLoc);
  };

  pp$3.parseSubscripts = function (base, startPos, startLoc, noCalls) {
    for (;;) {
      if (!noCalls && this.eat(types.doubleColon)) {
        var node = this.startNodeAt(startPos, startLoc);
        node.object = base;
        node.callee = this.parseNoCallExpr();
        return this.parseSubscripts(this.finishNode(node, "BindExpression"), startPos, startLoc, noCalls);
      } else if (this.eat(types.dot)) {
        var _node2 = this.startNodeAt(startPos, startLoc);
        _node2.object = base;
        _node2.property = this.parseIdentifier(true);
        _node2.computed = false;
        base = this.finishNode(_node2, "MemberExpression");
      } else if (this.eat(types.bracketL)) {
        var _node3 = this.startNodeAt(startPos, startLoc);
        _node3.object = base;
        _node3.property = this.parseExpression();
        _node3.computed = true;
        this.expect(types.bracketR);
        base = this.finishNode(_node3, "MemberExpression");
      } else if (!noCalls && this.match(types.parenL)) {
        var possibleAsync = this.state.potentialArrowAt === base.start && base.type === "Identifier" && base.name === "async" && !this.canInsertSemicolon();
        this.next();

        var _node4 = this.startNodeAt(startPos, startLoc);
        _node4.callee = base;
        _node4.arguments = this.parseCallExpressionArguments(types.parenR, possibleAsync);
        if (_node4.callee.type === "Import" && _node4.arguments.length !== 1) {
          this.raise(_node4.start, "import() requires exactly one argument");
        }
        base = this.finishNode(_node4, "CallExpression");

        if (possibleAsync && this.shouldParseAsyncArrow()) {
          return this.parseAsyncArrowFromCallExpression(this.startNodeAt(startPos, startLoc), _node4);
        } else {
          this.toReferencedList(_node4.arguments);
        }
      } else if (this.match(types.backQuote)) {
        var _node5 = this.startNodeAt(startPos, startLoc);
        _node5.tag = base;
        _node5.quasi = this.parseTemplate(true);
        base = this.finishNode(_node5, "TaggedTemplateExpression");
      } else {
        return base;
      }
    }
  };

  pp$3.parseCallExpressionArguments = function (close, possibleAsyncArrow) {
    var elts = [];
    var innerParenStart = void 0;
    var first = true;

    while (!this.eat(close)) {
      if (first) {
        first = false;
      } else {
        this.expect(types.comma);
        if (this.eat(close)) break;
      }

      // we need to make sure that if this is an async arrow functions, that we don't allow inner parens inside the params
      if (this.match(types.parenL) && !innerParenStart) {
        innerParenStart = this.state.start;
      }

      elts.push(this.parseExprListItem(false, possibleAsyncArrow ? { start: 0 } : undefined, possibleAsyncArrow ? { start: 0 } : undefined));
    }

    // we found an async arrow function so let's not allow any inner parens
    if (possibleAsyncArrow && innerParenStart && this.shouldParseAsyncArrow()) {
      this.unexpected();
    }

    return elts;
  };

  pp$3.shouldParseAsyncArrow = function () {
    return this.match(types.arrow);
  };

  pp$3.parseAsyncArrowFromCallExpression = function (node, call) {
    this.expect(types.arrow);
    return this.parseArrowExpression(node, call.arguments, true);
  };

  // Parse a no-call expression (like argument of `new` or `::` operators).

  pp$3.parseNoCallExpr = function () {
    var startPos = this.state.start;
    var startLoc = this.state.startLoc;
    return this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
  };

  // Parse an atomic expression — either a single token that is an
  // expression, an expression started by a keyword like `function` or
  // `new`, or an expression wrapped in punctuation like `()`, `[]`,
  // or `{}`.

  pp$3.parseExprAtom = function (refShorthandDefaultPos) {
    var canBeArrow = this.state.potentialArrowAt === this.state.start;
    var node = void 0;

    switch (this.state.type) {
      case types._super:
        if (!this.state.inMethod && !this.state.inClassProperty && !this.options.allowSuperOutsideMethod) {
          this.raise(this.state.start, "'super' outside of function or class");
        }

        node = this.startNode();
        this.next();
        if (!this.match(types.parenL) && !this.match(types.bracketL) && !this.match(types.dot)) {
          this.unexpected();
        }
        if (this.match(types.parenL) && this.state.inMethod !== "constructor" && !this.options.allowSuperOutsideMethod) {
          this.raise(node.start, "super() outside of class constructor");
        }
        return this.finishNode(node, "Super");

      case types._import:
        if (!this.hasPlugin("dynamicImport")) this.unexpected();

        node = this.startNode();
        this.next();
        if (!this.match(types.parenL)) {
          this.unexpected(null, types.parenL);
        }
        return this.finishNode(node, "Import");

      case types._this:
        node = this.startNode();
        this.next();
        return this.finishNode(node, "ThisExpression");

      case types._yield:
        if (this.state.inGenerator) this.unexpected();

      case types.name:
        node = this.startNode();
        var allowAwait = this.state.value === "await" && this.state.inAsync;
        var allowYield = this.shouldAllowYieldIdentifier();
        var id = this.parseIdentifier(allowAwait || allowYield);

        if (id.name === "await") {
          if (this.state.inAsync || this.inModule) {
            return this.parseAwait(node);
          }
        } else if (id.name === "async" && this.match(types._function) && !this.canInsertSemicolon()) {
          this.next();
          return this.parseFunction(node, false, false, true);
        } else if (canBeArrow && id.name === "async" && this.match(types.name)) {
          var params = [this.parseIdentifier()];
          this.expect(types.arrow);
          // let foo = bar => {};
          return this.parseArrowExpression(node, params, true);
        }

        if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
          return this.parseArrowExpression(node, [id]);
        }

        return id;

      case types._do:
        if (this.hasPlugin("doExpressions")) {
          var _node6 = this.startNode();
          this.next();
          var oldInFunction = this.state.inFunction;
          var oldLabels = this.state.labels;
          this.state.labels = [];
          this.state.inFunction = false;
          _node6.body = this.parseBlock(false, true);
          this.state.inFunction = oldInFunction;
          this.state.labels = oldLabels;
          return this.finishNode(_node6, "DoExpression");
        }

      case types.regexp:
        var value = this.state.value;
        node = this.parseLiteral(value.value, "RegExpLiteral");
        node.pattern = value.pattern;
        node.flags = value.flags;
        return node;

      case types.num:
        return this.parseLiteral(this.state.value, "NumericLiteral");

      case types.string:
        return this.parseLiteral(this.state.value, "StringLiteral");

      case types._null:
        node = this.startNode();
        this.next();
        return this.finishNode(node, "NullLiteral");

      case types._true:case types._false:
        node = this.startNode();
        node.value = this.match(types._true);
        this.next();
        return this.finishNode(node, "BooleanLiteral");

      case types.parenL:
        return this.parseParenAndDistinguishExpression(null, null, canBeArrow);

      case types.bracketL:
        node = this.startNode();
        this.next();
        node.elements = this.parseExprList(types.bracketR, true, refShorthandDefaultPos);
        this.toReferencedList(node.elements);
        return this.finishNode(node, "ArrayExpression");

      case types.braceL:
        return this.parseObj(false, refShorthandDefaultPos);

      case types._function:
        return this.parseFunctionExpression();

      case types.at:
        this.parseDecorators();

      case types._class:
        node = this.startNode();
        this.takeDecorators(node);
        return this.parseClass(node, false);

      case types._new:
        return this.parseNew();

      case types.backQuote:
        return this.parseTemplate(false);

      case types.doubleColon:
        node = this.startNode();
        this.next();
        node.object = null;
        var callee = node.callee = this.parseNoCallExpr();
        if (callee.type === "MemberExpression") {
          return this.finishNode(node, "BindExpression");
        } else {
          this.raise(callee.start, "Binding should be performed on object property.");
        }

      default:
        this.unexpected();
    }
  };

  pp$3.parseFunctionExpression = function () {
    var node = this.startNode();
    var meta = this.parseIdentifier(true);
    if (this.state.inGenerator && this.eat(types.dot) && this.hasPlugin("functionSent")) {
      return this.parseMetaProperty(node, meta, "sent");
    } else {
      return this.parseFunction(node, false);
    }
  };

  pp$3.parseMetaProperty = function (node, meta, propertyName) {
    node.meta = meta;
    node.property = this.parseIdentifier(true);

    if (node.property.name !== propertyName) {
      this.raise(node.property.start, "The only valid meta property for new is " + meta.name + "." + propertyName);
    }

    return this.finishNode(node, "MetaProperty");
  };

  pp$3.parseLiteral = function (value, type, startPos, startLoc) {
    startPos = startPos || this.state.start;
    startLoc = startLoc || this.state.startLoc;

    var node = this.startNodeAt(startPos, startLoc);
    this.addExtra(node, "rawValue", value);
    this.addExtra(node, "raw", this.input.slice(startPos, this.state.end));
    node.value = value;
    this.next();
    return this.finishNode(node, type);
  };

  pp$3.parseParenExpression = function () {
    this.expect(types.parenL);
    var val = this.parseExpression();
    this.expect(types.parenR);
    return val;
  };

  pp$3.parseParenAndDistinguishExpression = function (startPos, startLoc, canBeArrow) {
    startPos = startPos || this.state.start;
    startLoc = startLoc || this.state.startLoc;

    var val = void 0;
    this.expect(types.parenL);

    var innerStartPos = this.state.start;
    var innerStartLoc = this.state.startLoc;
    var exprList = [];
    var refShorthandDefaultPos = { start: 0 };
    var refNeedsArrowPos = { start: 0 };
    var first = true;
    var spreadStart = void 0;
    var optionalCommaStart = void 0;

    while (!this.match(types.parenR)) {
      if (first) {
        first = false;
      } else {
        this.expect(types.comma, refNeedsArrowPos.start || null);
        if (this.match(types.parenR)) {
          optionalCommaStart = this.state.start;
          break;
        }
      }

      if (this.match(types.ellipsis)) {
        var spreadNodeStartPos = this.state.start;
        var spreadNodeStartLoc = this.state.startLoc;
        spreadStart = this.state.start;
        exprList.push(this.parseParenItem(this.parseRest(), spreadNodeStartPos, spreadNodeStartLoc));
        break;
      } else {
        exprList.push(this.parseMaybeAssign(false, refShorthandDefaultPos, this.parseParenItem, refNeedsArrowPos));
      }
    }

    var innerEndPos = this.state.start;
    var innerEndLoc = this.state.startLoc;
    this.expect(types.parenR);

    var arrowNode = this.startNodeAt(startPos, startLoc);
    if (canBeArrow && this.shouldParseArrow() && (arrowNode = this.parseArrow(arrowNode))) {
      for (var _iterator = exprList, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var param = _ref;

        if (param.extra && param.extra.parenthesized) this.unexpected(param.extra.parenStart);
      }

      return this.parseArrowExpression(arrowNode, exprList);
    }

    if (!exprList.length) {
      this.unexpected(this.state.lastTokStart);
    }
    if (optionalCommaStart) this.unexpected(optionalCommaStart);
    if (spreadStart) this.unexpected(spreadStart);
    if (refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start);
    if (refNeedsArrowPos.start) this.unexpected(refNeedsArrowPos.start);

    if (exprList.length > 1) {
      val = this.startNodeAt(innerStartPos, innerStartLoc);
      val.expressions = exprList;
      this.toReferencedList(val.expressions);
      this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
    } else {
      val = exprList[0];
    }

    this.addExtra(val, "parenthesized", true);
    this.addExtra(val, "parenStart", startPos);

    return val;
  };

  pp$3.shouldParseArrow = function () {
    return !this.canInsertSemicolon();
  };

  pp$3.parseArrow = function (node) {
    if (this.eat(types.arrow)) {
      return node;
    }
  };

  pp$3.parseParenItem = function (node) {
    return node;
  };

  // New's precedence is slightly tricky. It must allow its argument
  // to be a `[]` or dot subscript expression, but not a call — at
  // least, not without wrapping it in parentheses. Thus, it uses the

  pp$3.parseNew = function () {
    var node = this.startNode();
    var meta = this.parseIdentifier(true);

    if (this.eat(types.dot)) {
      var metaProp = this.parseMetaProperty(node, meta, "target");

      if (!this.state.inFunction) {
        this.raise(metaProp.property.start, "new.target can only be used in functions");
      }

      return metaProp;
    }

    node.callee = this.parseNoCallExpr();

    if (this.eat(types.parenL)) {
      node.arguments = this.parseExprList(types.parenR);
      this.toReferencedList(node.arguments);
    } else {
      node.arguments = [];
    }

    return this.finishNode(node, "NewExpression");
  };

  // Parse template expression.

  pp$3.parseTemplateElement = function (isTagged) {
    var elem = this.startNode();
    if (this.state.value === null) {
      if (!isTagged || !this.hasPlugin("templateInvalidEscapes")) {
        this.raise(this.state.invalidTemplateEscapePosition, "Invalid escape sequence in template");
      } else {
        this.state.invalidTemplateEscapePosition = null;
      }
    }
    elem.value = {
      raw: this.input.slice(this.state.start, this.state.end).replace(/\r\n?/g, "\n"),
      cooked: this.state.value
    };
    this.next();
    elem.tail = this.match(types.backQuote);
    return this.finishNode(elem, "TemplateElement");
  };

  pp$3.parseTemplate = function (isTagged) {
    var node = this.startNode();
    this.next();
    node.expressions = [];
    var curElt = this.parseTemplateElement(isTagged);
    node.quasis = [curElt];
    while (!curElt.tail) {
      this.expect(types.dollarBraceL);
      node.expressions.push(this.parseExpression());
      this.expect(types.braceR);
      node.quasis.push(curElt = this.parseTemplateElement(isTagged));
    }
    this.next();
    return this.finishNode(node, "TemplateLiteral");
  };

  // Parse an object literal or binding pattern.

  pp$3.parseObj = function (isPattern, refShorthandDefaultPos) {
    var decorators = [];
    var propHash = Object.create(null);
    var first = true;
    var node = this.startNode();

    node.properties = [];
    this.next();

    var firstRestLocation = null;

    while (!this.eat(types.braceR)) {
      if (first) {
        first = false;
      } else {
        this.expect(types.comma);
        if (this.eat(types.braceR)) break;
      }

      while (this.match(types.at)) {
        decorators.push(this.parseDecorator());
      }

      var prop = this.startNode(),
          isGenerator = false,
          isAsync = false,
          startPos = void 0,
          startLoc = void 0;
      if (decorators.length) {
        prop.decorators = decorators;
        decorators = [];
      }

      if (this.hasPlugin("objectRestSpread") && this.match(types.ellipsis)) {
        prop = this.parseSpread(isPattern ? { start: 0 } : undefined);
        prop.type = isPattern ? "RestProperty" : "SpreadProperty";
        if (isPattern) this.toAssignable(prop.argument, true, "object pattern");
        node.properties.push(prop);
        if (isPattern) {
          var position = this.state.start;
          if (firstRestLocation !== null) {
            this.unexpected(firstRestLocation, "Cannot have multiple rest elements when destructuring");
          } else if (this.eat(types.braceR)) {
            break;
          } else if (this.match(types.comma) && this.lookahead().type === types.braceR) {
            // TODO: temporary rollback
            // this.unexpected(position, "A trailing comma is not permitted after the rest element");
            continue;
          } else {
            firstRestLocation = position;
            continue;
          }
        } else {
          continue;
        }
      }

      prop.method = false;
      prop.shorthand = false;

      if (isPattern || refShorthandDefaultPos) {
        startPos = this.state.start;
        startLoc = this.state.startLoc;
      }

      if (!isPattern) {
        isGenerator = this.eat(types.star);
      }

      if (!isPattern && this.isContextual("async")) {
        if (isGenerator) this.unexpected();

        var asyncId = this.parseIdentifier();
        if (this.match(types.colon) || this.match(types.parenL) || this.match(types.braceR) || this.match(types.eq) || this.match(types.comma)) {
          prop.key = asyncId;
          prop.computed = false;
        } else {
          isAsync = true;
          if (this.hasPlugin("asyncGenerators")) isGenerator = this.eat(types.star);
          this.parsePropertyName(prop);
        }
      } else {
        this.parsePropertyName(prop);
      }

      this.parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, refShorthandDefaultPos);
      this.checkPropClash(prop, propHash);

      if (prop.shorthand) {
        this.addExtra(prop, "shorthand", true);
      }

      node.properties.push(prop);
    }

    if (firstRestLocation !== null) {
      this.unexpected(firstRestLocation, "The rest element has to be the last element when destructuring");
    }

    if (decorators.length) {
      this.raise(this.state.start, "You have trailing decorators with no property");
    }

    return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression");
  };

  pp$3.isGetterOrSetterMethod = function (prop, isPattern) {
    return !isPattern && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && (this.match(types.string) || // get "string"() {}
    this.match(types.num) || // get 1() {}
    this.match(types.bracketL) || // get ["string"]() {}
    this.match(types.name) || // get foo() {}
    this.state.type.keyword // get debugger() {}
    );
  };

  // get methods aren't allowed to have any parameters
  // set methods must have exactly 1 parameter
  pp$3.checkGetterSetterParamCount = function (method) {
    var paramCount = method.kind === "get" ? 0 : 1;
    if (method.params.length !== paramCount) {
      var start = method.start;
      if (method.kind === "get") {
        this.raise(start, "getter should have no params");
      } else {
        this.raise(start, "setter should have exactly one param");
      }
    }
  };

  pp$3.parseObjectMethod = function (prop, isGenerator, isAsync, isPattern) {
    if (isAsync || isGenerator || this.match(types.parenL)) {
      if (isPattern) this.unexpected();
      prop.kind = "method";
      prop.method = true;
      this.parseMethod(prop, isGenerator, isAsync);

      return this.finishNode(prop, "ObjectMethod");
    }

    if (this.isGetterOrSetterMethod(prop, isPattern)) {
      if (isGenerator || isAsync) this.unexpected();
      prop.kind = prop.key.name;
      this.parsePropertyName(prop);
      this.parseMethod(prop);
      this.checkGetterSetterParamCount(prop);

      return this.finishNode(prop, "ObjectMethod");
    }
  };

  pp$3.parseObjectProperty = function (prop, startPos, startLoc, isPattern, refShorthandDefaultPos) {
    if (this.eat(types.colon)) {
      prop.value = isPattern ? this.parseMaybeDefault(this.state.start, this.state.startLoc) : this.parseMaybeAssign(false, refShorthandDefaultPos);

      return this.finishNode(prop, "ObjectProperty");
    }

    if (!prop.computed && prop.key.type === "Identifier") {
      this.checkReservedWord(prop.key.name, prop.key.start, true, true);

      if (isPattern) {
        prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key.__clone());
      } else if (this.match(types.eq) && refShorthandDefaultPos) {
        if (!refShorthandDefaultPos.start) {
          refShorthandDefaultPos.start = this.state.start;
        }
        prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key.__clone());
      } else {
        prop.value = prop.key.__clone();
      }
      prop.shorthand = true;

      return this.finishNode(prop, "ObjectProperty");
    }
  };

  pp$3.parseObjPropValue = function (prop, startPos, startLoc, isGenerator, isAsync, isPattern, refShorthandDefaultPos) {
    var node = this.parseObjectMethod(prop, isGenerator, isAsync, isPattern) || this.parseObjectProperty(prop, startPos, startLoc, isPattern, refShorthandDefaultPos);

    if (!node) this.unexpected();

    return node;
  };

  pp$3.parsePropertyName = function (prop) {
    if (this.eat(types.bracketL)) {
      prop.computed = true;
      prop.key = this.parseMaybeAssign();
      this.expect(types.bracketR);
    } else {
      prop.computed = false;
      var oldInPropertyName = this.state.inPropertyName;
      this.state.inPropertyName = true;
      prop.key = this.match(types.num) || this.match(types.string) ? this.parseExprAtom() : this.parseIdentifier(true);
      this.state.inPropertyName = oldInPropertyName;
    }
    return prop.key;
  };

  // Initialize empty function node.

  pp$3.initFunction = function (node, isAsync) {
    node.id = null;
    node.generator = false;
    node.expression = false;
    node.async = !!isAsync;
  };

  // Parse object or class method.

  pp$3.parseMethod = function (node, isGenerator, isAsync) {
    var oldInMethod = this.state.inMethod;
    this.state.inMethod = node.kind || true;
    this.initFunction(node, isAsync);
    this.expect(types.parenL);
    node.params = this.parseBindingList(types.parenR);
    node.generator = !!isGenerator;
    this.parseFunctionBody(node);
    this.state.inMethod = oldInMethod;
    return node;
  };

  // Parse arrow function expression with given parameters.

  pp$3.parseArrowExpression = function (node, params, isAsync) {
    this.initFunction(node, isAsync);
    node.params = this.toAssignableList(params, true, "arrow function parameters");
    this.parseFunctionBody(node, true);
    return this.finishNode(node, "ArrowFunctionExpression");
  };

  pp$3.isStrictBody = function (node, isExpression) {
    if (!isExpression && node.body.directives.length) {
      for (var _iterator2 = node.body.directives, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var directive = _ref2;

        if (directive.value.value === "use strict") {
          return true;
        }
      }
    }

    return false;
  };

  // Parse function body and check parameters.
  pp$3.parseFunctionBody = function (node, allowExpression) {
    var isExpression = allowExpression && !this.match(types.braceL);

    var oldInAsync = this.state.inAsync;
    this.state.inAsync = node.async;
    if (isExpression) {
      node.body = this.parseMaybeAssign();
      node.expression = true;
    } else {
      // Start a new scope with regard to labels and the `inFunction`
      // flag (restore them to their old value afterwards).
      var oldInFunc = this.state.inFunction;
      var oldInGen = this.state.inGenerator;
      var oldLabels = this.state.labels;
      this.state.inFunction = true;this.state.inGenerator = node.generator;this.state.labels = [];
      node.body = this.parseBlock(true);
      node.expression = false;
      this.state.inFunction = oldInFunc;this.state.inGenerator = oldInGen;this.state.labels = oldLabels;
    }
    this.state.inAsync = oldInAsync;

    // If this is a strict mode function, verify that argument names
    // are not repeated, and it does not try to bind the words `eval`
    // or `arguments`.
    var isStrict = this.isStrictBody(node, isExpression);
    // Also check when allowExpression === true for arrow functions
    var checkLVal = this.state.strict || allowExpression || isStrict;

    if (isStrict && node.id && node.id.type === "Identifier" && node.id.name === "yield") {
      this.raise(node.id.start, "Binding yield in strict mode");
    }

    if (checkLVal) {
      var nameHash = Object.create(null);
      var oldStrict = this.state.strict;
      if (isStrict) this.state.strict = true;
      if (node.id) {
        this.checkLVal(node.id, true, undefined, "function name");
      }
      for (var _iterator3 = node.params, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
        var _ref3;

        if (_isArray3) {
          if (_i3 >= _iterator3.length) break;
          _ref3 = _iterator3[_i3++];
        } else {
          _i3 = _iterator3.next();
          if (_i3.done) break;
          _ref3 = _i3.value;
        }

        var param = _ref3;

        if (isStrict && param.type !== "Identifier") {
          this.raise(param.start, "Non-simple parameter in strict mode");
        }
        this.checkLVal(param, true, nameHash, "function parameter list");
      }
      this.state.strict = oldStrict;
    }
  };

  // Parses a comma-separated list of expressions, and returns them as
  // an array. `close` is the token type that ends the list, and
  // `allowEmpty` can be turned on to allow subsequent commas with
  // nothing in between them to be parsed as `null` (which is needed
  // for array literals).

  pp$3.parseExprList = function (close, allowEmpty, refShorthandDefaultPos) {
    var elts = [];
    var first = true;

    while (!this.eat(close)) {
      if (first) {
        first = false;
      } else {
        this.expect(types.comma);
        if (this.eat(close)) break;
      }

      elts.push(this.parseExprListItem(allowEmpty, refShorthandDefaultPos));
    }
    return elts;
  };

  pp$3.parseExprListItem = function (allowEmpty, refShorthandDefaultPos, refNeedsArrowPos) {
    var elt = void 0;
    if (allowEmpty && this.match(types.comma)) {
      elt = null;
    } else if (this.match(types.ellipsis)) {
      elt = this.parseSpread(refShorthandDefaultPos);
    } else {
      elt = this.parseMaybeAssign(false, refShorthandDefaultPos, this.parseParenItem, refNeedsArrowPos);
    }
    return elt;
  };

  // Parse the next token as an identifier. If `liberal` is true (used
  // when parsing properties), it will also convert keywords into
  // identifiers.

  pp$3.parseIdentifier = function (liberal) {
    var node = this.startNode();
    if (!liberal) {
      this.checkReservedWord(this.state.value, this.state.start, !!this.state.type.keyword, false);
    }

    if (this.match(types.name)) {
      node.name = this.state.value;
    } else if (this.state.type.keyword) {
      node.name = this.state.type.keyword;
    } else {
      this.unexpected();
    }

    if (!liberal && node.name === "await" && this.state.inAsync) {
      this.raise(node.start, "invalid use of await inside of an async function");
    }

    node.loc.identifierName = node.name;

    this.next();
    return this.finishNode(node, "Identifier");
  };

  pp$3.checkReservedWord = function (word, startLoc, checkKeywords, isBinding) {
    if (this.isReservedWord(word) || checkKeywords && this.isKeyword(word)) {
      this.raise(startLoc, word + " is a reserved word");
    }

    if (this.state.strict && (reservedWords.strict(word) || isBinding && reservedWords.strictBind(word))) {
      this.raise(startLoc, word + " is a reserved word in strict mode");
    }
  };

  // Parses await expression inside async function.

  pp$3.parseAwait = function (node) {
    // istanbul ignore next: this condition is checked at the call site so won't be hit here
    if (!this.state.inAsync) {
      this.unexpected();
    }
    if (this.match(types.star)) {
      this.raise(node.start, "await* has been removed from the async functions proposal. Use Promise.all() instead.");
    }
    node.argument = this.parseMaybeUnary();
    return this.finishNode(node, "AwaitExpression");
  };

  // Parses yield expression inside generator.

  pp$3.parseYield = function () {
    var node = this.startNode();
    this.next();
    if (this.match(types.semi) || this.canInsertSemicolon() || !this.match(types.star) && !this.state.type.startsExpr) {
      node.delegate = false;
      node.argument = null;
    } else {
      node.delegate = this.eat(types.star);
      node.argument = this.parseMaybeAssign();
    }
    return this.finishNode(node, "YieldExpression");
  };

  // Start an AST node, attaching a start offset.

  var pp$4 = Parser.prototype;
  var commentKeys = ["leadingComments", "trailingComments", "innerComments"];

  var Node = function () {
    function Node(pos, loc, filename) {
      classCallCheck(this, Node);

      this.type = "";
      this.start = pos;
      this.end = 0;
      this.loc = new SourceLocation(loc);
      if (filename) this.loc.filename = filename;
    }

    Node.prototype.__clone = function __clone() {
      var node2 = new Node();
      for (var key in this) {
        // Do not clone comments that are already attached to the node
        if (commentKeys.indexOf(key) < 0) {
          node2[key] = this[key];
        }
      }

      return node2;
    };

    return Node;
  }();

  pp$4.startNode = function () {
    return new Node(this.state.start, this.state.startLoc, this.filename);
  };

  pp$4.startNodeAt = function (pos, loc) {
    return new Node(pos, loc, this.filename);
  };

  function finishNodeAt(node, type, pos, loc) {
    node.type = type;
    node.end = pos;
    node.loc.end = loc;
    this.processComment(node);
    return node;
  }

  // Finish an AST node, adding `type` and `end` properties.

  pp$4.finishNode = function (node, type) {
    return finishNodeAt.call(this, node, type, this.state.lastTokEnd, this.state.lastTokEndLoc);
  };

  // Finish node at given position

  pp$4.finishNodeAt = function (node, type, pos, loc) {
    return finishNodeAt.call(this, node, type, pos, loc);
  };

  var pp$5 = Parser.prototype;

  // This function is used to raise exceptions on parse errors. It
  // takes an offset integer (into the current `input`) to indicate
  // the location of the error, attaches the position to the end
  // of the error message, and then raises a `SyntaxError` with that
  // message.

  pp$5.raise = function (pos, message) {
    var loc = getLineInfo(this.input, pos);
    message += " (" + loc.line + ":" + loc.column + ")";
    var err = new SyntaxError(message);
    err.pos = pos;
    err.loc = loc;
    throw err;
  };

  /* eslint max-len: 0 */

  /**
   * Based on the comment attachment algorithm used in espree and estraverse.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * * Redistributions of source code must retain the above copyright
   *   notice, this list of conditions and the following disclaimer.
   * * Redistributions in binary form must reproduce the above copyright
   *   notice, this list of conditions and the following disclaimer in the
   *   documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */

  function last(stack) {
    return stack[stack.length - 1];
  }

  var pp$6 = Parser.prototype;

  pp$6.addComment = function (comment) {
    if (this.filename) comment.loc.filename = this.filename;
    this.state.trailingComments.push(comment);
    this.state.leadingComments.push(comment);
  };

  pp$6.processComment = function (node) {
    if (node.type === "Program" && node.body.length > 0) return;

    var stack = this.state.commentStack;

    var firstChild = void 0,
        lastChild = void 0,
        trailingComments = void 0,
        i = void 0,
        j = void 0;

    if (this.state.trailingComments.length > 0) {
      // If the first comment in trailingComments comes after the
      // current node, then we're good - all comments in the array will
      // come after the node and so it's safe to add them as official
      // trailingComments.
      if (this.state.trailingComments[0].start >= node.end) {
        trailingComments = this.state.trailingComments;
        this.state.trailingComments = [];
      } else {
        // Otherwise, if the first comment doesn't come after the
        // current node, that means we have a mix of leading and trailing
        // comments in the array and that leadingComments contains the
        // same items as trailingComments. Reset trailingComments to
        // zero items and we'll handle this by evaluating leadingComments
        // later.
        this.state.trailingComments.length = 0;
      }
    } else {
      var lastInStack = last(stack);
      if (stack.length > 0 && lastInStack.trailingComments && lastInStack.trailingComments[0].start >= node.end) {
        trailingComments = lastInStack.trailingComments;
        lastInStack.trailingComments = null;
      }
    }

    // Eating the stack.
    if (stack.length > 0 && last(stack).start >= node.start) {
      firstChild = stack.pop();
    }

    while (stack.length > 0 && last(stack).start >= node.start) {
      lastChild = stack.pop();
    }

    if (!lastChild && firstChild) lastChild = firstChild;

    // Attach comments that follow a trailing comma on the last
    // property in an object literal or a trailing comma in function arguments
    // as trailing comments
    if (firstChild && (firstChild.type === "ObjectProperty" || node.type === "CallExpression") && this.state.leadingComments.length > 0) {
      var lastComment = last(this.state.leadingComments);
      if (lastComment.start >= node.start) {
        if (this.state.commentPreviousNode) {
          for (j = 0; j < this.state.leadingComments.length; j++) {
            if (this.state.leadingComments[j].end < this.state.commentPreviousNode.end) {
              this.state.leadingComments.splice(j, 1);
              j--;
            }
          }

          if (this.state.leadingComments.length > 0) {
            firstChild.trailingComments = this.state.leadingComments;
            this.state.leadingComments = [];
          }
        }
      }
    }

    if (lastChild) {
      if (lastChild.leadingComments) {
        if (lastChild !== node && last(lastChild.leadingComments).end <= node.start) {
          node.leadingComments = lastChild.leadingComments;
          lastChild.leadingComments = null;
        } else {
          // A leading comment for an anonymous class had been stolen by its first ClassMethod,
          // so this takes back the leading comment.
          // See also: https://github.com/eslint/espree/issues/158
          for (i = lastChild.leadingComments.length - 2; i >= 0; --i) {
            if (lastChild.leadingComments[i].end <= node.start) {
              node.leadingComments = lastChild.leadingComments.splice(0, i + 1);
              break;
            }
          }
        }
      }
    } else if (this.state.leadingComments.length > 0) {
      if (last(this.state.leadingComments).end <= node.start) {
        if (this.state.commentPreviousNode) {
          for (j = 0; j < this.state.leadingComments.length; j++) {
            if (this.state.leadingComments[j].end < this.state.commentPreviousNode.end) {
              this.state.leadingComments.splice(j, 1);
              j--;
            }
          }
        }
        if (this.state.leadingComments.length > 0) {
          node.leadingComments = this.state.leadingComments;
          this.state.leadingComments = [];
        }
      } else {
        // https://github.com/eslint/espree/issues/2
        //
        // In special cases, such as return (without a value) and
        // debugger, all comments will end up as leadingComments and
        // will otherwise be eliminated. This step runs when the
        // commentStack is empty and there are comments left
        // in leadingComments.
        //
        // This loop figures out the stopping point between the actual
        // leading and trailing comments by finding the location of the
        // first comment that comes after the given node.
        for (i = 0; i < this.state.leadingComments.length; i++) {
          if (this.state.leadingComments[i].end > node.start) {
            break;
          }
        }

        // Split the array based on the location of the first comment
        // that comes after the node. Keep in mind that this could
        // result in an empty array, and if so, the array must be
        // deleted.
        node.leadingComments = this.state.leadingComments.slice(0, i);
        if (node.leadingComments.length === 0) {
          node.leadingComments = null;
        }

        // Similarly, trailing comments are attached later. The variable
        // must be reset to null if there are no trailing comments.
        trailingComments = this.state.leadingComments.slice(i);
        if (trailingComments.length === 0) {
          trailingComments = null;
        }
      }
    }

    this.state.commentPreviousNode = node;

    if (trailingComments) {
      if (trailingComments.length && trailingComments[0].start >= node.start && last(trailingComments).end <= node.end) {
        node.innerComments = trailingComments;
      } else {
        node.trailingComments = trailingComments;
      }
    }

    stack.push(node);
  };

  var pp$7 = Parser.prototype;

  pp$7.estreeParseRegExpLiteral = function (_ref) {
    var pattern = _ref.pattern,
        flags = _ref.flags;

    var regex = null;
    try {
      regex = new RegExp(pattern, flags);
    } catch (e) {
      // In environments that don't support these flags value will
      // be null as the regex can't be represented natively.
    }
    var node = this.estreeParseLiteral(regex);
    node.regex = { pattern: pattern, flags: flags };

    return node;
  };

  pp$7.estreeParseLiteral = function (value) {
    return this.parseLiteral(value, "Literal");
  };

  pp$7.directiveToStmt = function (directive) {
    var directiveLiteral = directive.value;

    var stmt = this.startNodeAt(directive.start, directive.loc.start);
    var expression = this.startNodeAt(directiveLiteral.start, directiveLiteral.loc.start);

    expression.value = directiveLiteral.value;
    expression.raw = directiveLiteral.extra.raw;

    stmt.expression = this.finishNodeAt(expression, "Literal", directiveLiteral.end, directiveLiteral.loc.end);
    stmt.directive = directiveLiteral.extra.raw.slice(1, -1);

    return this.finishNodeAt(stmt, "ExpressionStatement", directive.end, directive.loc.end);
  };

  function isSimpleProperty(node) {
    return node && node.type === "Property" && node.kind === "init" && node.method === false;
  }

  var estreePlugin = function (instance) {
    instance.extend("checkDeclaration", function (inner) {
      return function (node) {
        if (isSimpleProperty(node)) {
          this.checkDeclaration(node.value);
        } else {
          inner.call(this, node);
        }
      };
    });

    instance.extend("checkGetterSetterParamCount", function () {
      return function (prop) {
        var paramCount = prop.kind === "get" ? 0 : 1;
        if (prop.value.params.length !== paramCount) {
          var start = prop.start;
          if (prop.kind === "get") {
            this.raise(start, "getter should have no params");
          } else {
            this.raise(start, "setter should have exactly one param");
          }
        }
      };
    });

    instance.extend("checkLVal", function (inner) {
      return function (expr, isBinding, checkClashes) {
        var _this = this;

        switch (expr.type) {
          case "ObjectPattern":
            expr.properties.forEach(function (prop) {
              _this.checkLVal(prop.type === "Property" ? prop.value : prop, isBinding, checkClashes, "object destructuring pattern");
            });
            break;
          default:
            for (var _len = arguments.length, args = Array(_len > 3 ? _len - 3 : 0), _key = 3; _key < _len; _key++) {
              args[_key - 3] = arguments[_key];
            }

            inner.call.apply(inner, [this, expr, isBinding, checkClashes].concat(args));
        }
      };
    });

    instance.extend("checkPropClash", function () {
      return function (prop, propHash) {
        if (prop.computed || !isSimpleProperty(prop)) return;

        var key = prop.key;
        // It is either an Identifier or a String/NumericLiteral
        var name = key.type === "Identifier" ? key.name : String(key.value);

        if (name === "__proto__") {
          if (propHash.proto) this.raise(key.start, "Redefinition of __proto__ property");
          propHash.proto = true;
        }
      };
    });

    instance.extend("isStrictBody", function () {
      return function (node, isExpression) {
        if (!isExpression && node.body.body.length > 0) {
          for (var _iterator = node.body.body, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
            var _ref2;

            if (_isArray) {
              if (_i >= _iterator.length) break;
              _ref2 = _iterator[_i++];
            } else {
              _i = _iterator.next();
              if (_i.done) break;
              _ref2 = _i.value;
            }

            var directive = _ref2;

            if (directive.type === "ExpressionStatement" && directive.expression.type === "Literal") {
              if (directive.expression.value === "use strict") return true;
            } else {
              // Break for the first non literal expression
              break;
            }
          }
        }

        return false;
      };
    });

    instance.extend("isValidDirective", function () {
      return function (stmt) {
        return stmt.type === "ExpressionStatement" && stmt.expression.type === "Literal" && typeof stmt.expression.value === "string" && (!stmt.expression.extra || !stmt.expression.extra.parenthesized);
      };
    });

    instance.extend("stmtToDirective", function (inner) {
      return function (stmt) {
        var directive = inner.call(this, stmt);
        var value = stmt.expression.value;

        // Reset value to the actual value as in estree mode we want
        // the stmt to have the real value and not the raw value
        directive.value.value = value;

        return directive;
      };
    });

    instance.extend("parseBlockBody", function (inner) {
      return function (node) {
        var _this2 = this;

        for (var _len2 = arguments.length, args = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
          args[_key2 - 1] = arguments[_key2];
        }

        inner.call.apply(inner, [this, node].concat(args));

        node.directives.reverse().forEach(function (directive) {
          node.body.unshift(_this2.directiveToStmt(directive));
        });
        delete node.directives;
      };
    });

    instance.extend("parseClassMethod", function (inner) {
      return function (classBody) {
        for (var _len3 = arguments.length, args = Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
          args[_key3 - 1] = arguments[_key3];
        }

        inner.call.apply(inner, [this, classBody].concat(args));

        var body = classBody.body;
        body[body.length - 1].type = "MethodDefinition";
      };
    });

    instance.extend("parseExprAtom", function (inner) {
      return function () {
        switch (this.state.type) {
          case types.regexp:
            return this.estreeParseRegExpLiteral(this.state.value);

          case types.num:
          case types.string:
            return this.estreeParseLiteral(this.state.value);

          case types._null:
            return this.estreeParseLiteral(null);

          case types._true:
            return this.estreeParseLiteral(true);

          case types._false:
            return this.estreeParseLiteral(false);

          default:
            for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
              args[_key4] = arguments[_key4];
            }

            return inner.call.apply(inner, [this].concat(args));
        }
      };
    });

    instance.extend("parseLiteral", function (inner) {
      return function () {
        for (var _len5 = arguments.length, args = Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {
          args[_key5] = arguments[_key5];
        }

        var node = inner.call.apply(inner, [this].concat(args));
        node.raw = node.extra.raw;
        delete node.extra;

        return node;
      };
    });

    instance.extend("parseMethod", function (inner) {
      return function (node) {
        var funcNode = this.startNode();
        funcNode.kind = node.kind; // provide kind, so inner method correctly sets state

        for (var _len6 = arguments.length, args = Array(_len6 > 1 ? _len6 - 1 : 0), _key6 = 1; _key6 < _len6; _key6++) {
          args[_key6 - 1] = arguments[_key6];
        }

        funcNode = inner.call.apply(inner, [this, funcNode].concat(args));
        delete funcNode.kind;
        node.value = this.finishNode(funcNode, "FunctionExpression");

        return node;
      };
    });

    instance.extend("parseObjectMethod", function (inner) {
      return function () {
        for (var _len7 = arguments.length, args = Array(_len7), _key7 = 0; _key7 < _len7; _key7++) {
          args[_key7] = arguments[_key7];
        }

        var node = inner.call.apply(inner, [this].concat(args));

        if (node) {
          if (node.kind === "method") node.kind = "init";
          node.type = "Property";
        }

        return node;
      };
    });

    instance.extend("parseObjectProperty", function (inner) {
      return function () {
        for (var _len8 = arguments.length, args = Array(_len8), _key8 = 0; _key8 < _len8; _key8++) {
          args[_key8] = arguments[_key8];
        }

        var node = inner.call.apply(inner, [this].concat(args));

        if (node) {
          node.kind = "init";
          node.type = "Property";
        }

        return node;
      };
    });

    instance.extend("toAssignable", function (inner) {
      return function (node, isBinding) {
        for (var _len9 = arguments.length, args = Array(_len9 > 2 ? _len9 - 2 : 0), _key9 = 2; _key9 < _len9; _key9++) {
          args[_key9 - 2] = arguments[_key9];
        }

        if (isSimpleProperty(node)) {
          this.toAssignable.apply(this, [node.value, isBinding].concat(args));

          return node;
        } else if (node.type === "ObjectExpression") {
          node.type = "ObjectPattern";
          for (var _iterator2 = node.properties, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
            var _ref3;

            if (_isArray2) {
              if (_i2 >= _iterator2.length) break;
              _ref3 = _iterator2[_i2++];
            } else {
              _i2 = _iterator2.next();
              if (_i2.done) break;
              _ref3 = _i2.value;
            }

            var prop = _ref3;

            if (prop.kind === "get" || prop.kind === "set") {
              this.raise(prop.key.start, "Object pattern can't contain getter or setter");
            } else if (prop.method) {
              this.raise(prop.key.start, "Object pattern can't contain methods");
            } else {
              this.toAssignable(prop, isBinding, "object destructuring pattern");
            }
          }

          return node;
        }

        return inner.call.apply(inner, [this, node, isBinding].concat(args));
      };
    });
  };

  /* eslint max-len: 0 */

  var primitiveTypes = ["any", "mixed", "empty", "bool", "boolean", "number", "string", "void", "null"];

  var pp$8 = Parser.prototype;

  pp$8.flowParseTypeInitialiser = function (tok) {
    var oldInType = this.state.inType;
    this.state.inType = true;
    this.expect(tok || types.colon);

    var type = this.flowParseType();
    this.state.inType = oldInType;
    return type;
  };

  pp$8.flowParsePredicate = function () {
    var node = this.startNode();
    var moduloLoc = this.state.startLoc;
    var moduloPos = this.state.start;
    this.expect(types.modulo);
    var checksLoc = this.state.startLoc;
    this.expectContextual("checks");
    // Force '%' and 'checks' to be adjacent
    if (moduloLoc.line !== checksLoc.line || moduloLoc.column !== checksLoc.column - 1) {
      this.raise(moduloPos, "Spaces between ´%´ and ´checks´ are not allowed here.");
    }
    if (this.eat(types.parenL)) {
      node.expression = this.parseExpression();
      this.expect(types.parenR);
      return this.finishNode(node, "DeclaredPredicate");
    } else {
      return this.finishNode(node, "InferredPredicate");
    }
  };

  pp$8.flowParseTypeAndPredicateInitialiser = function () {
    var oldInType = this.state.inType;
    this.state.inType = true;
    this.expect(types.colon);
    var type = null;
    var predicate = null;
    if (this.match(types.modulo)) {
      this.state.inType = oldInType;
      predicate = this.flowParsePredicate();
    } else {
      type = this.flowParseType();
      this.state.inType = oldInType;
      if (this.match(types.modulo)) {
        predicate = this.flowParsePredicate();
      }
    }
    return [type, predicate];
  };

  pp$8.flowParseDeclareClass = function (node) {
    this.next();
    this.flowParseInterfaceish(node, true);
    return this.finishNode(node, "DeclareClass");
  };

  pp$8.flowParseDeclareFunction = function (node) {
    this.next();

    var id = node.id = this.parseIdentifier();

    var typeNode = this.startNode();
    var typeContainer = this.startNode();

    if (this.isRelational("<")) {
      typeNode.typeParameters = this.flowParseTypeParameterDeclaration();
    } else {
      typeNode.typeParameters = null;
    }

    this.expect(types.parenL);
    var tmp = this.flowParseFunctionTypeParams();
    typeNode.params = tmp.params;
    typeNode.rest = tmp.rest;
    this.expect(types.parenR);
    var predicate = null;

    var _flowParseTypeAndPred = this.flowParseTypeAndPredicateInitialiser();

    typeNode.returnType = _flowParseTypeAndPred[0];
    predicate = _flowParseTypeAndPred[1];

    typeContainer.typeAnnotation = this.finishNode(typeNode, "FunctionTypeAnnotation");
    typeContainer.predicate = predicate;
    id.typeAnnotation = this.finishNode(typeContainer, "TypeAnnotation");

    this.finishNode(id, id.type);

    this.semicolon();

    return this.finishNode(node, "DeclareFunction");
  };

  pp$8.flowParseDeclare = function (node) {
    if (this.match(types._class)) {
      return this.flowParseDeclareClass(node);
    } else if (this.match(types._function)) {
      return this.flowParseDeclareFunction(node);
    } else if (this.match(types._var)) {
      return this.flowParseDeclareVariable(node);
    } else if (this.isContextual("module")) {
      if (this.lookahead().type === types.dot) {
        return this.flowParseDeclareModuleExports(node);
      } else {
        return this.flowParseDeclareModule(node);
      }
    } else if (this.isContextual("type")) {
      return this.flowParseDeclareTypeAlias(node);
    } else if (this.isContextual("interface")) {
      return this.flowParseDeclareInterface(node);
    } else {
      this.unexpected();
    }
  };

  pp$8.flowParseDeclareVariable = function (node) {
    this.next();
    node.id = this.flowParseTypeAnnotatableIdentifier();
    this.semicolon();
    return this.finishNode(node, "DeclareVariable");
  };

  pp$8.flowParseDeclareModule = function (node) {
    this.next();

    if (this.match(types.string)) {
      node.id = this.parseExprAtom();
    } else {
      node.id = this.parseIdentifier();
    }

    var bodyNode = node.body = this.startNode();
    var body = bodyNode.body = [];
    this.expect(types.braceL);
    while (!this.match(types.braceR)) {
      var _bodyNode = this.startNode();

      if (this.match(types._import)) {
        var lookahead = this.lookahead();
        if (lookahead.value !== "type" && lookahead.value !== "typeof") {
          this.unexpected(null, "Imports within a `declare module` body must always be `import type` or `import typeof`");
        }

        this.parseImport(_bodyNode);
      } else {
        this.expectContextual("declare", "Only declares and type imports are allowed inside declare module");

        _bodyNode = this.flowParseDeclare(_bodyNode, true);
      }

      body.push(_bodyNode);
    }
    this.expect(types.braceR);

    this.finishNode(bodyNode, "BlockStatement");
    return this.finishNode(node, "DeclareModule");
  };

  pp$8.flowParseDeclareModuleExports = function (node) {
    this.expectContextual("module");
    this.expect(types.dot);
    this.expectContextual("exports");
    node.typeAnnotation = this.flowParseTypeAnnotation();
    this.semicolon();

    return this.finishNode(node, "DeclareModuleExports");
  };

  pp$8.flowParseDeclareTypeAlias = function (node) {
    this.next();
    this.flowParseTypeAlias(node);
    return this.finishNode(node, "DeclareTypeAlias");
  };

  pp$8.flowParseDeclareInterface = function (node) {
    this.next();
    this.flowParseInterfaceish(node);
    return this.finishNode(node, "DeclareInterface");
  };

  // Interfaces

  pp$8.flowParseInterfaceish = function (node) {
    node.id = this.parseIdentifier();

    if (this.isRelational("<")) {
      node.typeParameters = this.flowParseTypeParameterDeclaration();
    } else {
      node.typeParameters = null;
    }

    node.extends = [];
    node.mixins = [];

    if (this.eat(types._extends)) {
      do {
        node.extends.push(this.flowParseInterfaceExtends());
      } while (this.eat(types.comma));
    }

    if (this.isContextual("mixins")) {
      this.next();
      do {
        node.mixins.push(this.flowParseInterfaceExtends());
      } while (this.eat(types.comma));
    }

    node.body = this.flowParseObjectType(true, false, false);
  };

  pp$8.flowParseInterfaceExtends = function () {
    var node = this.startNode();

    node.id = this.flowParseQualifiedTypeIdentifier();
    if (this.isRelational("<")) {
      node.typeParameters = this.flowParseTypeParameterInstantiation();
    } else {
      node.typeParameters = null;
    }

    return this.finishNode(node, "InterfaceExtends");
  };

  pp$8.flowParseInterface = function (node) {
    this.flowParseInterfaceish(node, false);
    return this.finishNode(node, "InterfaceDeclaration");
  };

  pp$8.flowParseRestrictedIdentifier = function (liberal) {
    if (primitiveTypes.indexOf(this.state.value) > -1) {
      this.raise(this.state.start, "Cannot overwrite primitive type " + this.state.value);
    }

    return this.parseIdentifier(liberal);
  };

  // Type aliases

  pp$8.flowParseTypeAlias = function (node) {
    node.id = this.flowParseRestrictedIdentifier();

    if (this.isRelational("<")) {
      node.typeParameters = this.flowParseTypeParameterDeclaration();
    } else {
      node.typeParameters = null;
    }

    node.right = this.flowParseTypeInitialiser(types.eq);
    this.semicolon();

    return this.finishNode(node, "TypeAlias");
  };

  // Type annotations

  pp$8.flowParseTypeParameter = function () {
    var node = this.startNode();

    var variance = this.flowParseVariance();

    var ident = this.flowParseTypeAnnotatableIdentifier();
    node.name = ident.name;
    node.variance = variance;
    node.bound = ident.typeAnnotation;

    if (this.match(types.eq)) {
      this.eat(types.eq);
      node.default = this.flowParseType();
    }

    return this.finishNode(node, "TypeParameter");
  };

  pp$8.flowParseTypeParameterDeclaration = function () {
    var oldInType = this.state.inType;
    var node = this.startNode();
    node.params = [];

    this.state.inType = true;

    // istanbul ignore else: this condition is already checked at all call sites
    if (this.isRelational("<") || this.match(types.jsxTagStart)) {
      this.next();
    } else {
      this.unexpected();
    }

    do {
      node.params.push(this.flowParseTypeParameter());
      if (!this.isRelational(">")) {
        this.expect(types.comma);
      }
    } while (!this.isRelational(">"));
    this.expectRelational(">");

    this.state.inType = oldInType;

    return this.finishNode(node, "TypeParameterDeclaration");
  };

  pp$8.flowParseTypeParameterInstantiation = function () {
    var node = this.startNode();
    var oldInType = this.state.inType;
    node.params = [];

    this.state.inType = true;

    this.expectRelational("<");
    while (!this.isRelational(">")) {
      node.params.push(this.flowParseType());
      if (!this.isRelational(">")) {
        this.expect(types.comma);
      }
    }
    this.expectRelational(">");

    this.state.inType = oldInType;

    return this.finishNode(node, "TypeParameterInstantiation");
  };

  pp$8.flowParseObjectPropertyKey = function () {
    return this.match(types.num) || this.match(types.string) ? this.parseExprAtom() : this.parseIdentifier(true);
  };

  pp$8.flowParseObjectTypeIndexer = function (node, isStatic, variance) {
    node.static = isStatic;

    this.expect(types.bracketL);
    if (this.lookahead().type === types.colon) {
      node.id = this.flowParseObjectPropertyKey();
      node.key = this.flowParseTypeInitialiser();
    } else {
      node.id = null;
      node.key = this.flowParseType();
    }
    this.expect(types.bracketR);
    node.value = this.flowParseTypeInitialiser();
    node.variance = variance;

    this.flowObjectTypeSemicolon();
    return this.finishNode(node, "ObjectTypeIndexer");
  };

  pp$8.flowParseObjectTypeMethodish = function (node) {
    node.params = [];
    node.rest = null;
    node.typeParameters = null;

    if (this.isRelational("<")) {
      node.typeParameters = this.flowParseTypeParameterDeclaration();
    }

    this.expect(types.parenL);
    while (!this.match(types.parenR) && !this.match(types.ellipsis)) {
      node.params.push(this.flowParseFunctionTypeParam());
      if (!this.match(types.parenR)) {
        this.expect(types.comma);
      }
    }

    if (this.eat(types.ellipsis)) {
      node.rest = this.flowParseFunctionTypeParam();
    }
    this.expect(types.parenR);
    node.returnType = this.flowParseTypeInitialiser();

    return this.finishNode(node, "FunctionTypeAnnotation");
  };

  pp$8.flowParseObjectTypeMethod = function (startPos, startLoc, isStatic, key) {
    var node = this.startNodeAt(startPos, startLoc);
    node.value = this.flowParseObjectTypeMethodish(this.startNodeAt(startPos, startLoc));
    node.static = isStatic;
    node.key = key;
    node.optional = false;
    this.flowObjectTypeSemicolon();
    return this.finishNode(node, "ObjectTypeProperty");
  };

  pp$8.flowParseObjectTypeCallProperty = function (node, isStatic) {
    var valueNode = this.startNode();
    node.static = isStatic;
    node.value = this.flowParseObjectTypeMethodish(valueNode);
    this.flowObjectTypeSemicolon();
    return this.finishNode(node, "ObjectTypeCallProperty");
  };

  pp$8.flowParseObjectType = function (allowStatic, allowExact, allowSpread) {
    var oldInType = this.state.inType;
    this.state.inType = true;

    var nodeStart = this.startNode();
    var node = void 0;
    var propertyKey = void 0;
    var isStatic = false;

    nodeStart.callProperties = [];
    nodeStart.properties = [];
    nodeStart.indexers = [];

    var endDelim = void 0;
    var exact = void 0;
    if (allowExact && this.match(types.braceBarL)) {
      this.expect(types.braceBarL);
      endDelim = types.braceBarR;
      exact = true;
    } else {
      this.expect(types.braceL);
      endDelim = types.braceR;
      exact = false;
    }

    nodeStart.exact = exact;

    while (!this.match(endDelim)) {
      var optional = false;
      var startPos = this.state.start;
      var startLoc = this.state.startLoc;
      node = this.startNode();
      if (allowStatic && this.isContextual("static") && this.lookahead().type !== types.colon) {
        this.next();
        isStatic = true;
      }

      var variancePos = this.state.start;
      var variance = this.flowParseVariance();

      if (this.match(types.bracketL)) {
        nodeStart.indexers.push(this.flowParseObjectTypeIndexer(node, isStatic, variance));
      } else if (this.match(types.parenL) || this.isRelational("<")) {
        if (variance) {
          this.unexpected(variancePos);
        }
        nodeStart.callProperties.push(this.flowParseObjectTypeCallProperty(node, isStatic));
      } else {
        if (this.match(types.ellipsis)) {
          if (!allowSpread) {
            this.unexpected(null, "Spread operator cannot appear in class or interface definitions");
          }
          if (variance) {
            this.unexpected(variance.start, "Spread properties cannot have variance");
          }
          this.expect(types.ellipsis);
          node.argument = this.flowParseType();
          this.flowObjectTypeSemicolon();
          nodeStart.properties.push(this.finishNode(node, "ObjectTypeSpreadProperty"));
        } else {
          propertyKey = this.flowParseObjectPropertyKey();
          if (this.isRelational("<") || this.match(types.parenL)) {
            // This is a method property
            if (variance) {
              this.unexpected(variance.start);
            }
            nodeStart.properties.push(this.flowParseObjectTypeMethod(startPos, startLoc, isStatic, propertyKey));
          } else {
            if (this.eat(types.question)) {
              optional = true;
            }
            node.key = propertyKey;
            node.value = this.flowParseTypeInitialiser();
            node.optional = optional;
            node.static = isStatic;
            node.variance = variance;
            this.flowObjectTypeSemicolon();
            nodeStart.properties.push(this.finishNode(node, "ObjectTypeProperty"));
          }
        }
      }

      isStatic = false;
    }

    this.expect(endDelim);

    var out = this.finishNode(nodeStart, "ObjectTypeAnnotation");

    this.state.inType = oldInType;

    return out;
  };

  pp$8.flowObjectTypeSemicolon = function () {
    if (!this.eat(types.semi) && !this.eat(types.comma) && !this.match(types.braceR) && !this.match(types.braceBarR)) {
      this.unexpected();
    }
  };

  pp$8.flowParseQualifiedTypeIdentifier = function (startPos, startLoc, id) {
    startPos = startPos || this.state.start;
    startLoc = startLoc || this.state.startLoc;
    var node = id || this.parseIdentifier();

    while (this.eat(types.dot)) {
      var node2 = this.startNodeAt(startPos, startLoc);
      node2.qualification = node;
      node2.id = this.parseIdentifier();
      node = this.finishNode(node2, "QualifiedTypeIdentifier");
    }

    return node;
  };

  pp$8.flowParseGenericType = function (startPos, startLoc, id) {
    var node = this.startNodeAt(startPos, startLoc);

    node.typeParameters = null;
    node.id = this.flowParseQualifiedTypeIdentifier(startPos, startLoc, id);

    if (this.isRelational("<")) {
      node.typeParameters = this.flowParseTypeParameterInstantiation();
    }

    return this.finishNode(node, "GenericTypeAnnotation");
  };

  pp$8.flowParseTypeofType = function () {
    var node = this.startNode();
    this.expect(types._typeof);
    node.argument = this.flowParsePrimaryType();
    return this.finishNode(node, "TypeofTypeAnnotation");
  };

  pp$8.flowParseTupleType = function () {
    var node = this.startNode();
    node.types = [];
    this.expect(types.bracketL);
    // We allow trailing commas
    while (this.state.pos < this.input.length && !this.match(types.bracketR)) {
      node.types.push(this.flowParseType());
      if (this.match(types.bracketR)) break;
      this.expect(types.comma);
    }
    this.expect(types.bracketR);
    return this.finishNode(node, "TupleTypeAnnotation");
  };

  pp$8.flowParseFunctionTypeParam = function () {
    var name = null;
    var optional = false;
    var typeAnnotation = null;
    var node = this.startNode();
    var lh = this.lookahead();
    if (lh.type === types.colon || lh.type === types.question) {
      name = this.parseIdentifier();
      if (this.eat(types.question)) {
        optional = true;
      }
      typeAnnotation = this.flowParseTypeInitialiser();
    } else {
      typeAnnotation = this.flowParseType();
    }
    node.name = name;
    node.optional = optional;
    node.typeAnnotation = typeAnnotation;
    return this.finishNode(node, "FunctionTypeParam");
  };

  pp$8.reinterpretTypeAsFunctionTypeParam = function (type) {
    var node = this.startNodeAt(type.start, type.loc.start);
    node.name = null;
    node.optional = false;
    node.typeAnnotation = type;
    return this.finishNode(node, "FunctionTypeParam");
  };

  pp$8.flowParseFunctionTypeParams = function () {
    var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];

    var ret = { params: params, rest: null };
    while (!this.match(types.parenR) && !this.match(types.ellipsis)) {
      ret.params.push(this.flowParseFunctionTypeParam());
      if (!this.match(types.parenR)) {
        this.expect(types.comma);
      }
    }
    if (this.eat(types.ellipsis)) {
      ret.rest = this.flowParseFunctionTypeParam();
    }
    return ret;
  };

  pp$8.flowIdentToTypeAnnotation = function (startPos, startLoc, node, id) {
    switch (id.name) {
      case "any":
        return this.finishNode(node, "AnyTypeAnnotation");

      case "void":
        return this.finishNode(node, "VoidTypeAnnotation");

      case "bool":
      case "boolean":
        return this.finishNode(node, "BooleanTypeAnnotation");

      case "mixed":
        return this.finishNode(node, "MixedTypeAnnotation");

      case "empty":
        return this.finishNode(node, "EmptyTypeAnnotation");

      case "number":
        return this.finishNode(node, "NumberTypeAnnotation");

      case "string":
        return this.finishNode(node, "StringTypeAnnotation");

      default:
        return this.flowParseGenericType(startPos, startLoc, id);
    }
  };

  // The parsing of types roughly parallels the parsing of expressions, and
  // primary types are kind of like primary expressions...they're the
  // primitives with which other types are constructed.
  pp$8.flowParsePrimaryType = function () {
    var startPos = this.state.start;
    var startLoc = this.state.startLoc;
    var node = this.startNode();
    var tmp = void 0;
    var type = void 0;
    var isGroupedType = false;
    var oldNoAnonFunctionType = this.state.noAnonFunctionType;

    switch (this.state.type) {
      case types.name:
        return this.flowIdentToTypeAnnotation(startPos, startLoc, node, this.parseIdentifier());

      case types.braceL:
        return this.flowParseObjectType(false, false, true);

      case types.braceBarL:
        return this.flowParseObjectType(false, true, true);

      case types.bracketL:
        return this.flowParseTupleType();

      case types.relational:
        if (this.state.value === "<") {
          node.typeParameters = this.flowParseTypeParameterDeclaration();
          this.expect(types.parenL);
          tmp = this.flowParseFunctionTypeParams();
          node.params = tmp.params;
          node.rest = tmp.rest;
          this.expect(types.parenR);

          this.expect(types.arrow);

          node.returnType = this.flowParseType();

          return this.finishNode(node, "FunctionTypeAnnotation");
        }
        break;

      case types.parenL:
        this.next();

        // Check to see if this is actually a grouped type
        if (!this.match(types.parenR) && !this.match(types.ellipsis)) {
          if (this.match(types.name)) {
            var token = this.lookahead().type;
            isGroupedType = token !== types.question && token !== types.colon;
          } else {
            isGroupedType = true;
          }
        }

        if (isGroupedType) {
          this.state.noAnonFunctionType = false;
          type = this.flowParseType();
          this.state.noAnonFunctionType = oldNoAnonFunctionType;

          // A `,` or a `) =>` means this is an anonymous function type
          if (this.state.noAnonFunctionType || !(this.match(types.comma) || this.match(types.parenR) && this.lookahead().type === types.arrow)) {
            this.expect(types.parenR);
            return type;
          } else {
            // Eat a comma if there is one
            this.eat(types.comma);
          }
        }

        if (type) {
          tmp = this.flowParseFunctionTypeParams([this.reinterpretTypeAsFunctionTypeParam(type)]);
        } else {
          tmp = this.flowParseFunctionTypeParams();
        }

        node.params = tmp.params;
        node.rest = tmp.rest;

        this.expect(types.parenR);

        this.expect(types.arrow);

        node.returnType = this.flowParseType();

        node.typeParameters = null;

        return this.finishNode(node, "FunctionTypeAnnotation");

      case types.string:
        return this.parseLiteral(this.state.value, "StringLiteralTypeAnnotation");

      case types._true:case types._false:
        node.value = this.match(types._true);
        this.next();
        return this.finishNode(node, "BooleanLiteralTypeAnnotation");

      case types.plusMin:
        if (this.state.value === "-") {
          this.next();
          if (!this.match(types.num)) this.unexpected(null, "Unexpected token, expected number");

          return this.parseLiteral(-this.state.value, "NumericLiteralTypeAnnotation", node.start, node.loc.start);
        }

        this.unexpected();
      case types.num:
        return this.parseLiteral(this.state.value, "NumericLiteralTypeAnnotation");

      case types._null:
        node.value = this.match(types._null);
        this.next();
        return this.finishNode(node, "NullLiteralTypeAnnotation");

      case types._this:
        node.value = this.match(types._this);
        this.next();
        return this.finishNode(node, "ThisTypeAnnotation");

      case types.star:
        this.next();
        return this.finishNode(node, "ExistentialTypeParam");

      default:
        if (this.state.type.keyword === "typeof") {
          return this.flowParseTypeofType();
        }
    }

    this.unexpected();
  };

  pp$8.flowParsePostfixType = function () {
    var startPos = this.state.start,
        startLoc = this.state.startLoc;
    var type = this.flowParsePrimaryType();
    while (!this.canInsertSemicolon() && this.match(types.bracketL)) {
      var node = this.startNodeAt(startPos, startLoc);
      node.elementType = type;
      this.expect(types.bracketL);
      this.expect(types.bracketR);
      type = this.finishNode(node, "ArrayTypeAnnotation");
    }
    return type;
  };

  pp$8.flowParsePrefixType = function () {
    var node = this.startNode();
    if (this.eat(types.question)) {
      node.typeAnnotation = this.flowParsePrefixType();
      return this.finishNode(node, "NullableTypeAnnotation");
    } else {
      return this.flowParsePostfixType();
    }
  };

  pp$8.flowParseAnonFunctionWithoutParens = function () {
    var param = this.flowParsePrefixType();
    if (!this.state.noAnonFunctionType && this.eat(types.arrow)) {
      var node = this.startNodeAt(param.start, param.loc.start);
      node.params = [this.reinterpretTypeAsFunctionTypeParam(param)];
      node.rest = null;
      node.returnType = this.flowParseType();
      node.typeParameters = null;
      return this.finishNode(node, "FunctionTypeAnnotation");
    }
    return param;
  };

  pp$8.flowParseIntersectionType = function () {
    var node = this.startNode();
    this.eat(types.bitwiseAND);
    var type = this.flowParseAnonFunctionWithoutParens();
    node.types = [type];
    while (this.eat(types.bitwiseAND)) {
      node.types.push(this.flowParseAnonFunctionWithoutParens());
    }
    return node.types.length === 1 ? type : this.finishNode(node, "IntersectionTypeAnnotation");
  };

  pp$8.flowParseUnionType = function () {
    var node = this.startNode();
    this.eat(types.bitwiseOR);
    var type = this.flowParseIntersectionType();
    node.types = [type];
    while (this.eat(types.bitwiseOR)) {
      node.types.push(this.flowParseIntersectionType());
    }
    return node.types.length === 1 ? type : this.finishNode(node, "UnionTypeAnnotation");
  };

  pp$8.flowParseType = function () {
    var oldInType = this.state.inType;
    this.state.inType = true;
    var type = this.flowParseUnionType();
    this.state.inType = oldInType;
    return type;
  };

  pp$8.flowParseTypeAnnotation = function () {
    var node = this.startNode();
    node.typeAnnotation = this.flowParseTypeInitialiser();
    return this.finishNode(node, "TypeAnnotation");
  };

  pp$8.flowParseTypeAndPredicateAnnotation = function () {
    var node = this.startNode();

    var _flowParseTypeAndPred2 = this.flowParseTypeAndPredicateInitialiser();

    node.typeAnnotation = _flowParseTypeAndPred2[0];
    node.predicate = _flowParseTypeAndPred2[1];

    return this.finishNode(node, "TypeAnnotation");
  };

  pp$8.flowParseTypeAnnotatableIdentifier = function () {
    var ident = this.flowParseRestrictedIdentifier();
    if (this.match(types.colon)) {
      ident.typeAnnotation = this.flowParseTypeAnnotation();
      this.finishNode(ident, ident.type);
    }
    return ident;
  };

  pp$8.typeCastToParameter = function (node) {
    node.expression.typeAnnotation = node.typeAnnotation;

    return this.finishNodeAt(node.expression, node.expression.type, node.typeAnnotation.end, node.typeAnnotation.loc.end);
  };

  pp$8.flowParseVariance = function () {
    var variance = null;
    if (this.match(types.plusMin)) {
      if (this.state.value === "+") {
        variance = "plus";
      } else if (this.state.value === "-") {
        variance = "minus";
      }
      this.next();
    }
    return variance;
  };

  var flowPlugin = function (instance) {
    // plain function return types: function name(): string {}
    instance.extend("parseFunctionBody", function (inner) {
      return function (node, allowExpression) {
        if (this.match(types.colon) && !allowExpression) {
          // if allowExpression is true then we're parsing an arrow function and if
          // there's a return type then it's been handled elsewhere
          node.returnType = this.flowParseTypeAndPredicateAnnotation();
        }

        return inner.call(this, node, allowExpression);
      };
    });

    // interfaces
    instance.extend("parseStatement", function (inner) {
      return function (declaration, topLevel) {
        // strict mode handling of `interface` since it's a reserved word
        if (this.state.strict && this.match(types.name) && this.state.value === "interface") {
          var node = this.startNode();
          this.next();
          return this.flowParseInterface(node);
        } else {
          return inner.call(this, declaration, topLevel);
        }
      };
    });

    // declares, interfaces and type aliases
    instance.extend("parseExpressionStatement", function (inner) {
      return function (node, expr) {
        if (expr.type === "Identifier") {
          if (expr.name === "declare") {
            if (this.match(types._class) || this.match(types.name) || this.match(types._function) || this.match(types._var)) {
              return this.flowParseDeclare(node);
            }
          } else if (this.match(types.name)) {
            if (expr.name === "interface") {
              return this.flowParseInterface(node);
            } else if (expr.name === "type") {
              return this.flowParseTypeAlias(node);
            }
          }
        }

        return inner.call(this, node, expr);
      };
    });

    // export type
    instance.extend("shouldParseExportDeclaration", function (inner) {
      return function () {
        return this.isContextual("type") || this.isContextual("interface") || inner.call(this);
      };
    });

    instance.extend("isExportDefaultSpecifier", function (inner) {
      return function () {
        if (this.match(types.name) && (this.state.value === "type" || this.state.value === "interface")) {
          return false;
        }

        return inner.call(this);
      };
    });

    instance.extend("parseConditional", function (inner) {
      return function (expr, noIn, startPos, startLoc, refNeedsArrowPos) {
        // only do the expensive clone if there is a question mark
        // and if we come from inside parens
        if (refNeedsArrowPos && this.match(types.question)) {
          var state = this.state.clone();
          try {
            return inner.call(this, expr, noIn, startPos, startLoc);
          } catch (err) {
            if (err instanceof SyntaxError) {
              this.state = state;
              refNeedsArrowPos.start = err.pos || this.state.start;
              return expr;
            } else {
              // istanbul ignore next: no such error is expected
              throw err;
            }
          }
        }

        return inner.call(this, expr, noIn, startPos, startLoc);
      };
    });

    instance.extend("parseParenItem", function (inner) {
      return function (node, startPos, startLoc) {
        node = inner.call(this, node, startPos, startLoc);
        if (this.eat(types.question)) {
          node.optional = true;
        }

        if (this.match(types.colon)) {
          var typeCastNode = this.startNodeAt(startPos, startLoc);
          typeCastNode.expression = node;
          typeCastNode.typeAnnotation = this.flowParseTypeAnnotation();

          return this.finishNode(typeCastNode, "TypeCastExpression");
        }

        return node;
      };
    });

    instance.extend("parseExport", function (inner) {
      return function (node) {
        node = inner.call(this, node);
        if (node.type === "ExportNamedDeclaration") {
          node.exportKind = node.exportKind || "value";
        }
        return node;
      };
    });

    instance.extend("parseExportDeclaration", function (inner) {
      return function (node) {
        if (this.isContextual("type")) {
          node.exportKind = "type";

          var declarationNode = this.startNode();
          this.next();

          if (this.match(types.braceL)) {
            // export type { foo, bar };
            node.specifiers = this.parseExportSpecifiers();
            this.parseExportFrom(node);
            return null;
          } else {
            // export type Foo = Bar;
            return this.flowParseTypeAlias(declarationNode);
          }
        } else if (this.isContextual("interface")) {
          node.exportKind = "type";
          var _declarationNode = this.startNode();
          this.next();
          return this.flowParseInterface(_declarationNode);
        } else {
          return inner.call(this, node);
        }
      };
    });

    instance.extend("parseClassId", function (inner) {
      return function (node) {
        inner.apply(this, arguments);
        if (this.isRelational("<")) {
          node.typeParameters = this.flowParseTypeParameterDeclaration();
        }
      };
    });

    // don't consider `void` to be a keyword as then it'll use the void token type
    // and set startExpr
    instance.extend("isKeyword", function (inner) {
      return function (name) {
        if (this.state.inType && name === "void") {
          return false;
        } else {
          return inner.call(this, name);
        }
      };
    });

    // ensure that inside flow types, we bypass the jsx parser plugin
    instance.extend("readToken", function (inner) {
      return function (code) {
        if (this.state.inType && (code === 62 || code === 60)) {
          return this.finishOp(types.relational, 1);
        } else {
          return inner.call(this, code);
        }
      };
    });

    // don't lex any token as a jsx one inside a flow type
    instance.extend("jsx_readToken", function (inner) {
      return function () {
        if (!this.state.inType) return inner.call(this);
      };
    });

    instance.extend("toAssignable", function (inner) {
      return function (node, isBinding, contextDescription) {
        if (node.type === "TypeCastExpression") {
          return inner.call(this, this.typeCastToParameter(node), isBinding, contextDescription);
        } else {
          return inner.call(this, node, isBinding, contextDescription);
        }
      };
    });

    // turn type casts that we found in function parameter head into type annotated params
    instance.extend("toAssignableList", function (inner) {
      return function (exprList, isBinding, contextDescription) {
        for (var i = 0; i < exprList.length; i++) {
          var expr = exprList[i];
          if (expr && expr.type === "TypeCastExpression") {
            exprList[i] = this.typeCastToParameter(expr);
          }
        }
        return inner.call(this, exprList, isBinding, contextDescription);
      };
    });

    // this is a list of nodes, from something like a call expression, we need to filter the
    // type casts that we've found that are illegal in this context
    instance.extend("toReferencedList", function () {
      return function (exprList) {
        for (var i = 0; i < exprList.length; i++) {
          var expr = exprList[i];
          if (expr && expr._exprListItem && expr.type === "TypeCastExpression") {
            this.raise(expr.start, "Unexpected type cast");
          }
        }

        return exprList;
      };
    });

    // parse an item inside a expression list eg. `(NODE, NODE)` where NODE represents
    // the position where this function is called
    instance.extend("parseExprListItem", function (inner) {
      return function () {
        var container = this.startNode();

        for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
          args[_key] = arguments[_key];
        }

        var node = inner.call.apply(inner, [this].concat(args));
        if (this.match(types.colon)) {
          container._exprListItem = true;
          container.expression = node;
          container.typeAnnotation = this.flowParseTypeAnnotation();
          return this.finishNode(container, "TypeCastExpression");
        } else {
          return node;
        }
      };
    });

    instance.extend("checkLVal", function (inner) {
      return function (node) {
        if (node.type !== "TypeCastExpression") {
          return inner.apply(this, arguments);
        }
      };
    });

    // parse class property type annotations
    instance.extend("parseClassProperty", function (inner) {
      return function (node) {
        delete node.variancePos;
        if (this.match(types.colon)) {
          node.typeAnnotation = this.flowParseTypeAnnotation();
        }
        return inner.call(this, node);
      };
    });

    // determine whether or not we're currently in the position where a class method would appear
    instance.extend("isClassMethod", function (inner) {
      return function () {
        return this.isRelational("<") || inner.call(this);
      };
    });

    // determine whether or not we're currently in the position where a class property would appear
    instance.extend("isClassProperty", function (inner) {
      return function () {
        return this.match(types.colon) || inner.call(this);
      };
    });

    instance.extend("isNonstaticConstructor", function (inner) {
      return function (method) {
        return !this.match(types.colon) && inner.call(this, method);
      };
    });

    // parse type parameters for class methods
    instance.extend("parseClassMethod", function (inner) {
      return function (classBody, method) {
        if (method.variance) {
          this.unexpected(method.variancePos);
        }
        delete method.variance;
        delete method.variancePos;
        if (this.isRelational("<")) {
          method.typeParameters = this.flowParseTypeParameterDeclaration();
        }

        for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
          args[_key2 - 2] = arguments[_key2];
        }

        inner.call.apply(inner, [this, classBody, method].concat(args));
      };
    });

    // parse a the super class type parameters and implements
    instance.extend("parseClassSuper", function (inner) {
      return function (node, isStatement) {
        inner.call(this, node, isStatement);
        if (node.superClass && this.isRelational("<")) {
          node.superTypeParameters = this.flowParseTypeParameterInstantiation();
        }
        if (this.isContextual("implements")) {
          this.next();
          var implemented = node.implements = [];
          do {
            var _node = this.startNode();
            _node.id = this.parseIdentifier();
            if (this.isRelational("<")) {
              _node.typeParameters = this.flowParseTypeParameterInstantiation();
            } else {
              _node.typeParameters = null;
            }
            implemented.push(this.finishNode(_node, "ClassImplements"));
          } while (this.eat(types.comma));
        }
      };
    });

    instance.extend("parsePropertyName", function (inner) {
      return function (node) {
        var variancePos = this.state.start;
        var variance = this.flowParseVariance();
        var key = inner.call(this, node);
        node.variance = variance;
        node.variancePos = variancePos;
        return key;
      };
    });

    // parse type parameters for object method shorthand
    instance.extend("parseObjPropValue", function (inner) {
      return function (prop) {
        if (prop.variance) {
          this.unexpected(prop.variancePos);
        }
        delete prop.variance;
        delete prop.variancePos;

        var typeParameters = void 0;

        // method shorthand
        if (this.isRelational("<")) {
          typeParameters = this.flowParseTypeParameterDeclaration();
          if (!this.match(types.parenL)) this.unexpected();
        }

        inner.apply(this, arguments);

        // add typeParameters if we found them
        if (typeParameters) {
          (prop.value || prop).typeParameters = typeParameters;
        }
      };
    });

    instance.extend("parseAssignableListItemTypes", function () {
      return function (param) {
        if (this.eat(types.question)) {
          param.optional = true;
        }
        if (this.match(types.colon)) {
          param.typeAnnotation = this.flowParseTypeAnnotation();
        }
        this.finishNode(param, param.type);
        return param;
      };
    });

    instance.extend("parseMaybeDefault", function (inner) {
      return function () {
        for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
          args[_key3] = arguments[_key3];
        }

        var node = inner.apply(this, args);

        if (node.type === "AssignmentPattern" && node.typeAnnotation && node.right.start < node.typeAnnotation.start) {
          this.raise(node.typeAnnotation.start, "Type annotations must come before default assignments, e.g. instead of `age = 25: number` use `age: number = 25`");
        }

        return node;
      };
    });

    // parse typeof and type imports
    instance.extend("parseImportSpecifiers", function (inner) {
      return function (node) {
        node.importKind = "value";

        var kind = null;
        if (this.match(types._typeof)) {
          kind = "typeof";
        } else if (this.isContextual("type")) {
          kind = "type";
        }
        if (kind) {
          var lh = this.lookahead();
          if (lh.type === types.name && lh.value !== "from" || lh.type === types.braceL || lh.type === types.star) {
            this.next();
            node.importKind = kind;
          }
        }

        inner.call(this, node);
      };
    });

    // parse import-type/typeof shorthand
    instance.extend("parseImportSpecifier", function () {
      return function (node) {
        var specifier = this.startNode();
        var firstIdentLoc = this.state.start;
        var firstIdent = this.parseIdentifier(true);

        var specifierTypeKind = null;
        if (firstIdent.name === "type") {
          specifierTypeKind = "type";
        } else if (firstIdent.name === "typeof") {
          specifierTypeKind = "typeof";
        }

        var isBinding = false;
        if (this.isContextual("as")) {
          var as_ident = this.parseIdentifier(true);
          if (specifierTypeKind !== null && !this.match(types.name) && !this.state.type.keyword) {
            // `import {type as ,` or `import {type as }`
            specifier.imported = as_ident;
            specifier.importKind = specifierTypeKind;
            specifier.local = as_ident.__clone();
          } else {
            // `import {type as foo`
            specifier.imported = firstIdent;
            specifier.importKind = null;
            specifier.local = this.parseIdentifier();
          }
        } else if (specifierTypeKind !== null && (this.match(types.name) || this.state.type.keyword)) {
          // `import {type foo`
          specifier.imported = this.parseIdentifier(true);
          specifier.importKind = specifierTypeKind;
          if (this.eatContextual("as")) {
            specifier.local = this.parseIdentifier();
          } else {
            isBinding = true;
            specifier.local = specifier.imported.__clone();
          }
        } else {
          isBinding = true;
          specifier.imported = firstIdent;
          specifier.importKind = null;
          specifier.local = specifier.imported.__clone();
        }

        if ((node.importKind === "type" || node.importKind === "typeof") && (specifier.importKind === "type" || specifier.importKind === "typeof")) {
          this.raise(firstIdentLoc, "`The `type` and `typeof` keywords on named imports can only be used on regular `import` statements. It cannot be used with `import type` or `import typeof` statements`");
        }

        if (isBinding) this.checkReservedWord(specifier.local.name, specifier.start, true, true);

        this.checkLVal(specifier.local, true, undefined, "import specifier");
        node.specifiers.push(this.finishNode(specifier, "ImportSpecifier"));
      };
    });

    // parse function type parameters - function foo<T>() {}
    instance.extend("parseFunctionParams", function (inner) {
      return function (node) {
        if (this.isRelational("<")) {
          node.typeParameters = this.flowParseTypeParameterDeclaration();
        }
        inner.call(this, node);
      };
    });

    // parse flow type annotations on variable declarator heads - let foo: string = bar
    instance.extend("parseVarHead", function (inner) {
      return function (decl) {
        inner.call(this, decl);
        if (this.match(types.colon)) {
          decl.id.typeAnnotation = this.flowParseTypeAnnotation();
          this.finishNode(decl.id, decl.id.type);
        }
      };
    });

    // parse the return type of an async arrow function - let foo = (async (): number => {});
    instance.extend("parseAsyncArrowFromCallExpression", function (inner) {
      return function (node, call) {
        if (this.match(types.colon)) {
          var oldNoAnonFunctionType = this.state.noAnonFunctionType;
          this.state.noAnonFunctionType = true;
          node.returnType = this.flowParseTypeAnnotation();
          this.state.noAnonFunctionType = oldNoAnonFunctionType;
        }

        return inner.call(this, node, call);
      };
    });

    // todo description
    instance.extend("shouldParseAsyncArrow", function (inner) {
      return function () {
        return this.match(types.colon) || inner.call(this);
      };
    });

    // We need to support type parameter declarations for arrow functions. This
    // is tricky. There are three situations we need to handle
    //
    // 1. This is either JSX or an arrow function. We'll try JSX first. If that
    //    fails, we'll try an arrow function. If that fails, we'll throw the JSX
    //    error.
    // 2. This is an arrow function. We'll parse the type parameter declaration,
    //    parse the rest, make sure the rest is an arrow function, and go from
    //    there
    // 3. This is neither. Just call the inner function
    instance.extend("parseMaybeAssign", function (inner) {
      return function () {
        var jsxError = null;

        for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
          args[_key4] = arguments[_key4];
        }

        if (types.jsxTagStart && this.match(types.jsxTagStart)) {
          var state = this.state.clone();
          try {
            return inner.apply(this, args);
          } catch (err) {
            if (err instanceof SyntaxError) {
              this.state = state;

              // Remove `tc.j_expr` and `tc.j_oTag` from context added
              // by parsing `jsxTagStart` to stop the JSX plugin from
              // messing with the tokens
              this.state.context.length -= 2;

              jsxError = err;
            } else {
              // istanbul ignore next: no such error is expected
              throw err;
            }
          }
        }

        if (jsxError != null || this.isRelational("<")) {
          var arrowExpression = void 0;
          var typeParameters = void 0;
          try {
            typeParameters = this.flowParseTypeParameterDeclaration();

            arrowExpression = inner.apply(this, args);
            arrowExpression.typeParameters = typeParameters;
            arrowExpression.start = typeParameters.start;
            arrowExpression.loc.start = typeParameters.loc.start;
          } catch (err) {
            throw jsxError || err;
          }

          if (arrowExpression.type === "ArrowFunctionExpression") {
            return arrowExpression;
          } else if (jsxError != null) {
            throw jsxError;
          } else {
            this.raise(typeParameters.start, "Expected an arrow function after this type parameter declaration");
          }
        }

        return inner.apply(this, args);
      };
    });

    // handle return types for arrow functions
    instance.extend("parseArrow", function (inner) {
      return function (node) {
        if (this.match(types.colon)) {
          var state = this.state.clone();
          try {
            var oldNoAnonFunctionType = this.state.noAnonFunctionType;
            this.state.noAnonFunctionType = true;
            var returnType = this.flowParseTypeAndPredicateAnnotation();
            this.state.noAnonFunctionType = oldNoAnonFunctionType;

            if (this.canInsertSemicolon()) this.unexpected();
            if (!this.match(types.arrow)) this.unexpected();
            // assign after it is clear it is an arrow
            node.returnType = returnType;
          } catch (err) {
            if (err instanceof SyntaxError) {
              this.state = state;
            } else {
              // istanbul ignore next: no such error is expected
              throw err;
            }
          }
        }

        return inner.call(this, node);
      };
    });

    instance.extend("shouldParseArrow", function (inner) {
      return function () {
        return this.match(types.colon) || inner.call(this);
      };
    });
  };

  // Adapted from String.fromcodepoint to export the function without modifying String
  /*! https://mths.be/fromcodepoint v0.2.1 by @mathias */

  // The MIT License (MIT)
  // Copyright (c) Mathias Bynens
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
  // associated documentation files (the "Software"), to deal in the Software without restriction,
  // including without limitation the rights to use, copy, modify, merge, publish, distribute,
  // sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in all copies or
  // substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
  // NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
  // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

  var fromCodePoint = String.fromCodePoint;

  if (!fromCodePoint) {
    var stringFromCharCode = String.fromCharCode;
    var floor = Math.floor;
    fromCodePoint = function fromCodePoint() {
      var MAX_SIZE = 0x4000;
      var codeUnits = [];
      var highSurrogate = void 0;
      var lowSurrogate = void 0;
      var index = -1;
      var length = arguments.length;
      if (!length) {
        return "";
      }
      var result = "";
      while (++index < length) {
        var codePoint = Number(arguments[index]);
        if (!isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`
        codePoint < 0 || // not a valid Unicode code point
        codePoint > 0x10FFFF || // not a valid Unicode code point
        floor(codePoint) != codePoint // not an integer
        ) {
            throw RangeError("Invalid code point: " + codePoint);
          }
        if (codePoint <= 0xFFFF) {
          // BMP code point
          codeUnits.push(codePoint);
        } else {
          // Astral code point; split in surrogate halves
          // https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
          codePoint -= 0x10000;
          highSurrogate = (codePoint >> 10) + 0xD800;
          lowSurrogate = codePoint % 0x400 + 0xDC00;
          codeUnits.push(highSurrogate, lowSurrogate);
        }
        if (index + 1 == length || codeUnits.length > MAX_SIZE) {
          result += stringFromCharCode.apply(null, codeUnits);
          codeUnits.length = 0;
        }
      }
      return result;
    };
  }

  var fromCodePoint$1 = fromCodePoint;

  var XHTMLEntities = {
    quot: "\"",
    amp: "&",
    apos: "'",
    lt: "<",
    gt: ">",
    nbsp: "\xA0",
    iexcl: "\xA1",
    cent: "\xA2",
    pound: "\xA3",
    curren: "\xA4",
    yen: "\xA5",
    brvbar: "\xA6",
    sect: "\xA7",
    uml: "\xA8",
    copy: "\xA9",
    ordf: "\xAA",
    laquo: "\xAB",
    not: "\xAC",
    shy: "\xAD",
    reg: "\xAE",
    macr: "\xAF",
    deg: "\xB0",
    plusmn: "\xB1",
    sup2: "\xB2",
    sup3: "\xB3",
    acute: "\xB4",
    micro: "\xB5",
    para: "\xB6",
    middot: "\xB7",
    cedil: "\xB8",
    sup1: "\xB9",
    ordm: "\xBA",
    raquo: "\xBB",
    frac14: "\xBC",
    frac12: "\xBD",
    frac34: "\xBE",
    iquest: "\xBF",
    Agrave: "\xC0",
    Aacute: "\xC1",
    Acirc: "\xC2",
    Atilde: "\xC3",
    Auml: "\xC4",
    Aring: "\xC5",
    AElig: "\xC6",
    Ccedil: "\xC7",
    Egrave: "\xC8",
    Eacute: "\xC9",
    Ecirc: "\xCA",
    Euml: "\xCB",
    Igrave: "\xCC",
    Iacute: "\xCD",
    Icirc: "\xCE",
    Iuml: "\xCF",
    ETH: "\xD0",
    Ntilde: "\xD1",
    Ograve: "\xD2",
    Oacute: "\xD3",
    Ocirc: "\xD4",
    Otilde: "\xD5",
    Ouml: "\xD6",
    times: "\xD7",
    Oslash: "\xD8",
    Ugrave: "\xD9",
    Uacute: "\xDA",
    Ucirc: "\xDB",
    Uuml: "\xDC",
    Yacute: "\xDD",
    THORN: "\xDE",
    szlig: "\xDF",
    agrave: "\xE0",
    aacute: "\xE1",
    acirc: "\xE2",
    atilde: "\xE3",
    auml: "\xE4",
    aring: "\xE5",
    aelig: "\xE6",
    ccedil: "\xE7",
    egrave: "\xE8",
    eacute: "\xE9",
    ecirc: "\xEA",
    euml: "\xEB",
    igrave: "\xEC",
    iacute: "\xED",
    icirc: "\xEE",
    iuml: "\xEF",
    eth: "\xF0",
    ntilde: "\xF1",
    ograve: "\xF2",
    oacute: "\xF3",
    ocirc: "\xF4",
    otilde: "\xF5",
    ouml: "\xF6",
    divide: "\xF7",
    oslash: "\xF8",
    ugrave: "\xF9",
    uacute: "\xFA",
    ucirc: "\xFB",
    uuml: "\xFC",
    yacute: "\xFD",
    thorn: "\xFE",
    yuml: "\xFF",
    OElig: "\u0152",
    oelig: "\u0153",
    Scaron: "\u0160",
    scaron: "\u0161",
    Yuml: "\u0178",
    fnof: "\u0192",
    circ: "\u02C6",
    tilde: "\u02DC",
    Alpha: "\u0391",
    Beta: "\u0392",
    Gamma: "\u0393",
    Delta: "\u0394",
    Epsilon: "\u0395",
    Zeta: "\u0396",
    Eta: "\u0397",
    Theta: "\u0398",
    Iota: "\u0399",
    Kappa: "\u039A",
    Lambda: "\u039B",
    Mu: "\u039C",
    Nu: "\u039D",
    Xi: "\u039E",
    Omicron: "\u039F",
    Pi: "\u03A0",
    Rho: "\u03A1",
    Sigma: "\u03A3",
    Tau: "\u03A4",
    Upsilon: "\u03A5",
    Phi: "\u03A6",
    Chi: "\u03A7",
    Psi: "\u03A8",
    Omega: "\u03A9",
    alpha: "\u03B1",
    beta: "\u03B2",
    gamma: "\u03B3",
    delta: "\u03B4",
    epsilon: "\u03B5",
    zeta: "\u03B6",
    eta: "\u03B7",
    theta: "\u03B8",
    iota: "\u03B9",
    kappa: "\u03BA",
    lambda: "\u03BB",
    mu: "\u03BC",
    nu: "\u03BD",
    xi: "\u03BE",
    omicron: "\u03BF",
    pi: "\u03C0",
    rho: "\u03C1",
    sigmaf: "\u03C2",
    sigma: "\u03C3",
    tau: "\u03C4",
    upsilon: "\u03C5",
    phi: "\u03C6",
    chi: "\u03C7",
    psi: "\u03C8",
    omega: "\u03C9",
    thetasym: "\u03D1",
    upsih: "\u03D2",
    piv: "\u03D6",
    ensp: "\u2002",
    emsp: "\u2003",
    thinsp: "\u2009",
    zwnj: "\u200C",
    zwj: "\u200D",
    lrm: "\u200E",
    rlm: "\u200F",
    ndash: "\u2013",
    mdash: "\u2014",
    lsquo: "\u2018",
    rsquo: "\u2019",
    sbquo: "\u201A",
    ldquo: "\u201C",
    rdquo: "\u201D",
    bdquo: "\u201E",
    dagger: "\u2020",
    Dagger: "\u2021",
    bull: "\u2022",
    hellip: "\u2026",
    permil: "\u2030",
    prime: "\u2032",
    Prime: "\u2033",
    lsaquo: "\u2039",
    rsaquo: "\u203A",
    oline: "\u203E",
    frasl: "\u2044",
    euro: "\u20AC",
    image: "\u2111",
    weierp: "\u2118",
    real: "\u211C",
    trade: "\u2122",
    alefsym: "\u2135",
    larr: "\u2190",
    uarr: "\u2191",
    rarr: "\u2192",
    darr: "\u2193",
    harr: "\u2194",
    crarr: "\u21B5",
    lArr: "\u21D0",
    uArr: "\u21D1",
    rArr: "\u21D2",
    dArr: "\u21D3",
    hArr: "\u21D4",
    forall: "\u2200",
    part: "\u2202",
    exist: "\u2203",
    empty: "\u2205",
    nabla: "\u2207",
    isin: "\u2208",
    notin: "\u2209",
    ni: "\u220B",
    prod: "\u220F",
    sum: "\u2211",
    minus: "\u2212",
    lowast: "\u2217",
    radic: "\u221A",
    prop: "\u221D",
    infin: "\u221E",
    ang: "\u2220",
    and: "\u2227",
    or: "\u2228",
    cap: "\u2229",
    cup: "\u222A",
    "int": "\u222B",
    there4: "\u2234",
    sim: "\u223C",
    cong: "\u2245",
    asymp: "\u2248",
    ne: "\u2260",
    equiv: "\u2261",
    le: "\u2264",
    ge: "\u2265",
    sub: "\u2282",
    sup: "\u2283",
    nsub: "\u2284",
    sube: "\u2286",
    supe: "\u2287",
    oplus: "\u2295",
    otimes: "\u2297",
    perp: "\u22A5",
    sdot: "\u22C5",
    lceil: "\u2308",
    rceil: "\u2309",
    lfloor: "\u230A",
    rfloor: "\u230B",
    lang: "\u2329",
    rang: "\u232A",
    loz: "\u25CA",
    spades: "\u2660",
    clubs: "\u2663",
    hearts: "\u2665",
    diams: "\u2666"
  };

  var HEX_NUMBER = /^[\da-fA-F]+$/;
  var DECIMAL_NUMBER = /^\d+$/;

  types$1.j_oTag = new TokContext("<tag", false);
  types$1.j_cTag = new TokContext("</tag", false);
  types$1.j_expr = new TokContext("<tag>...</tag>", true, true);

  types.jsxName = new TokenType("jsxName");
  types.jsxText = new TokenType("jsxText", { beforeExpr: true });
  types.jsxTagStart = new TokenType("jsxTagStart", { startsExpr: true });
  types.jsxTagEnd = new TokenType("jsxTagEnd");

  types.jsxTagStart.updateContext = function () {
    this.state.context.push(types$1.j_expr); // treat as beginning of JSX expression
    this.state.context.push(types$1.j_oTag); // start opening tag context
    this.state.exprAllowed = false;
  };

  types.jsxTagEnd.updateContext = function (prevType) {
    var out = this.state.context.pop();
    if (out === types$1.j_oTag && prevType === types.slash || out === types$1.j_cTag) {
      this.state.context.pop();
      this.state.exprAllowed = this.curContext() === types$1.j_expr;
    } else {
      this.state.exprAllowed = true;
    }
  };

  var pp$9 = Parser.prototype;

  // Reads inline JSX contents token.

  pp$9.jsxReadToken = function () {
    var out = "";
    var chunkStart = this.state.pos;
    for (;;) {
      if (this.state.pos >= this.input.length) {
        this.raise(this.state.start, "Unterminated JSX contents");
      }

      var ch = this.input.charCodeAt(this.state.pos);

      switch (ch) {
        case 60: // "<"
        case 123:
          // "{"
          if (this.state.pos === this.state.start) {
            if (ch === 60 && this.state.exprAllowed) {
              ++this.state.pos;
              return this.finishToken(types.jsxTagStart);
            }
            return this.getTokenFromCode(ch);
          }
          out += this.input.slice(chunkStart, this.state.pos);
          return this.finishToken(types.jsxText, out);

        case 38:
          // "&"
          out += this.input.slice(chunkStart, this.state.pos);
          out += this.jsxReadEntity();
          chunkStart = this.state.pos;
          break;

        default:
          if (isNewLine(ch)) {
            out += this.input.slice(chunkStart, this.state.pos);
            out += this.jsxReadNewLine(true);
            chunkStart = this.state.pos;
          } else {
            ++this.state.pos;
          }
      }
    }
  };

  pp$9.jsxReadNewLine = function (normalizeCRLF) {
    var ch = this.input.charCodeAt(this.state.pos);
    var out = void 0;
    ++this.state.pos;
    if (ch === 13 && this.input.charCodeAt(this.state.pos) === 10) {
      ++this.state.pos;
      out = normalizeCRLF ? "\n" : "\r\n";
    } else {
      out = String.fromCharCode(ch);
    }
    ++this.state.curLine;
    this.state.lineStart = this.state.pos;

    return out;
  };

  pp$9.jsxReadString = function (quote) {
    var out = "";
    var chunkStart = ++this.state.pos;
    for (;;) {
      if (this.state.pos >= this.input.length) {
        this.raise(this.state.start, "Unterminated string constant");
      }

      var ch = this.input.charCodeAt(this.state.pos);
      if (ch === quote) break;
      if (ch === 38) {
        // "&"
        out += this.input.slice(chunkStart, this.state.pos);
        out += this.jsxReadEntity();
        chunkStart = this.state.pos;
      } else if (isNewLine(ch)) {
        out += this.input.slice(chunkStart, this.state.pos);
        out += this.jsxReadNewLine(false);
        chunkStart = this.state.pos;
      } else {
        ++this.state.pos;
      }
    }
    out += this.input.slice(chunkStart, this.state.pos++);
    return this.finishToken(types.string, out);
  };

  pp$9.jsxReadEntity = function () {
    var str = "";
    var count = 0;
    var entity = void 0;
    var ch = this.input[this.state.pos];

    var startPos = ++this.state.pos;
    while (this.state.pos < this.input.length && count++ < 10) {
      ch = this.input[this.state.pos++];
      if (ch === ";") {
        if (str[0] === "#") {
          if (str[1] === "x") {
            str = str.substr(2);
            if (HEX_NUMBER.test(str)) entity = fromCodePoint$1(parseInt(str, 16));
          } else {
            str = str.substr(1);
            if (DECIMAL_NUMBER.test(str)) entity = fromCodePoint$1(parseInt(str, 10));
          }
        } else {
          entity = XHTMLEntities[str];
        }
        break;
      }
      str += ch;
    }
    if (!entity) {
      this.state.pos = startPos;
      return "&";
    }
    return entity;
  };

  // Read a JSX identifier (valid tag or attribute name).
  //
  // Optimized version since JSX identifiers can"t contain
  // escape characters and so can be read as single slice.
  // Also assumes that first character was already checked
  // by isIdentifierStart in readToken.

  pp$9.jsxReadWord = function () {
    var ch = void 0;
    var start = this.state.pos;
    do {
      ch = this.input.charCodeAt(++this.state.pos);
    } while (isIdentifierChar(ch) || ch === 45); // "-"
    return this.finishToken(types.jsxName, this.input.slice(start, this.state.pos));
  };

  // Transforms JSX element name to string.

  function getQualifiedJSXName(object) {
    if (object.type === "JSXIdentifier") {
      return object.name;
    }

    if (object.type === "JSXNamespacedName") {
      return object.namespace.name + ":" + object.name.name;
    }

    if (object.type === "JSXMemberExpression") {
      return getQualifiedJSXName(object.object) + "." + getQualifiedJSXName(object.property);
    }
  }

  // Parse next token as JSX identifier

  pp$9.jsxParseIdentifier = function () {
    var node = this.startNode();
    if (this.match(types.jsxName)) {
      node.name = this.state.value;
    } else if (this.state.type.keyword) {
      node.name = this.state.type.keyword;
    } else {
      this.unexpected();
    }
    this.next();
    return this.finishNode(node, "JSXIdentifier");
  };

  // Parse namespaced identifier.

  pp$9.jsxParseNamespacedName = function () {
    var startPos = this.state.start;
    var startLoc = this.state.startLoc;
    var name = this.jsxParseIdentifier();
    if (!this.eat(types.colon)) return name;

    var node = this.startNodeAt(startPos, startLoc);
    node.namespace = name;
    node.name = this.jsxParseIdentifier();
    return this.finishNode(node, "JSXNamespacedName");
  };

  // Parses element name in any form - namespaced, member
  // or single identifier.

  pp$9.jsxParseElementName = function () {
    var startPos = this.state.start;
    var startLoc = this.state.startLoc;
    var node = this.jsxParseNamespacedName();
    while (this.eat(types.dot)) {
      var newNode = this.startNodeAt(startPos, startLoc);
      newNode.object = node;
      newNode.property = this.jsxParseIdentifier();
      node = this.finishNode(newNode, "JSXMemberExpression");
    }
    return node;
  };

  // Parses any type of JSX attribute value.

  pp$9.jsxParseAttributeValue = function () {
    var node = void 0;
    switch (this.state.type) {
      case types.braceL:
        node = this.jsxParseExpressionContainer();
        if (node.expression.type === "JSXEmptyExpression") {
          this.raise(node.start, "JSX attributes must only be assigned a non-empty expression");
        } else {
          return node;
        }

      case types.jsxTagStart:
      case types.string:
        node = this.parseExprAtom();
        node.extra = null;
        return node;

      default:
        this.raise(this.state.start, "JSX value should be either an expression or a quoted JSX text");
    }
  };

  // JSXEmptyExpression is unique type since it doesn't actually parse anything,
  // and so it should start at the end of last read token (left brace) and finish
  // at the beginning of the next one (right brace).

  pp$9.jsxParseEmptyExpression = function () {
    var node = this.startNodeAt(this.state.lastTokEnd, this.state.lastTokEndLoc);
    return this.finishNodeAt(node, "JSXEmptyExpression", this.state.start, this.state.startLoc);
  };

  // Parse JSX spread child

  pp$9.jsxParseSpreadChild = function () {
    var node = this.startNode();
    this.expect(types.braceL);
    this.expect(types.ellipsis);
    node.expression = this.parseExpression();
    this.expect(types.braceR);

    return this.finishNode(node, "JSXSpreadChild");
  };

  // Parses JSX expression enclosed into curly brackets.


  pp$9.jsxParseExpressionContainer = function () {
    var node = this.startNode();
    this.next();
    if (this.match(types.braceR)) {
      node.expression = this.jsxParseEmptyExpression();
    } else {
      node.expression = this.parseExpression();
    }
    this.expect(types.braceR);
    return this.finishNode(node, "JSXExpressionContainer");
  };

  // Parses following JSX attribute name-value pair.

  pp$9.jsxParseAttribute = function () {
    var node = this.startNode();
    if (this.eat(types.braceL)) {
      this.expect(types.ellipsis);
      node.argument = this.parseMaybeAssign();
      this.expect(types.braceR);
      return this.finishNode(node, "JSXSpreadAttribute");
    }
    node.name = this.jsxParseNamespacedName();
    node.value = this.eat(types.eq) ? this.jsxParseAttributeValue() : null;
    return this.finishNode(node, "JSXAttribute");
  };

  // Parses JSX opening tag starting after "<".

  pp$9.jsxParseOpeningElementAt = function (startPos, startLoc) {
    var node = this.startNodeAt(startPos, startLoc);
    node.attributes = [];
    node.name = this.jsxParseElementName();
    while (!this.match(types.slash) && !this.match(types.jsxTagEnd)) {
      node.attributes.push(this.jsxParseAttribute());
    }
    node.selfClosing = this.eat(types.slash);
    this.expect(types.jsxTagEnd);
    return this.finishNode(node, "JSXOpeningElement");
  };

  // Parses JSX closing tag starting after "</".

  pp$9.jsxParseClosingElementAt = function (startPos, startLoc) {
    var node = this.startNodeAt(startPos, startLoc);
    node.name = this.jsxParseElementName();
    this.expect(types.jsxTagEnd);
    return this.finishNode(node, "JSXClosingElement");
  };

  // Parses entire JSX element, including it"s opening tag
  // (starting after "<"), attributes, contents and closing tag.

  pp$9.jsxParseElementAt = function (startPos, startLoc) {
    var node = this.startNodeAt(startPos, startLoc);
    var children = [];
    var openingElement = this.jsxParseOpeningElementAt(startPos, startLoc);
    var closingElement = null;

    if (!openingElement.selfClosing) {
      contents: for (;;) {
        switch (this.state.type) {
          case types.jsxTagStart:
            startPos = this.state.start;startLoc = this.state.startLoc;
            this.next();
            if (this.eat(types.slash)) {
              closingElement = this.jsxParseClosingElementAt(startPos, startLoc);
              break contents;
            }
            children.push(this.jsxParseElementAt(startPos, startLoc));
            break;

          case types.jsxText:
            children.push(this.parseExprAtom());
            break;

          case types.braceL:
            if (this.lookahead().type === types.ellipsis) {
              children.push(this.jsxParseSpreadChild());
            } else {
              children.push(this.jsxParseExpressionContainer());
            }

            break;

          // istanbul ignore next - should never happen
          default:
            this.unexpected();
        }
      }

      if (getQualifiedJSXName(closingElement.name) !== getQualifiedJSXName(openingElement.name)) {
        this.raise(closingElement.start, "Expected corresponding JSX closing tag for <" + getQualifiedJSXName(openingElement.name) + ">");
      }
    }

    node.openingElement = openingElement;
    node.closingElement = closingElement;
    node.children = children;
    if (this.match(types.relational) && this.state.value === "<") {
      this.raise(this.state.start, "Adjacent JSX elements must be wrapped in an enclosing tag");
    }
    return this.finishNode(node, "JSXElement");
  };

  // Parses entire JSX element from current position.

  pp$9.jsxParseElement = function () {
    var startPos = this.state.start;
    var startLoc = this.state.startLoc;
    this.next();
    return this.jsxParseElementAt(startPos, startLoc);
  };

  var jsxPlugin = function (instance) {
    instance.extend("parseExprAtom", function (inner) {
      return function (refShortHandDefaultPos) {
        if (this.match(types.jsxText)) {
          var node = this.parseLiteral(this.state.value, "JSXText");
          // https://github.com/babel/babel/issues/2078
          node.extra = null;
          return node;
        } else if (this.match(types.jsxTagStart)) {
          return this.jsxParseElement();
        } else {
          return inner.call(this, refShortHandDefaultPos);
        }
      };
    });

    instance.extend("readToken", function (inner) {
      return function (code) {
        if (this.state.inPropertyName) return inner.call(this, code);

        var context = this.curContext();

        if (context === types$1.j_expr) {
          return this.jsxReadToken();
        }

        if (context === types$1.j_oTag || context === types$1.j_cTag) {
          if (isIdentifierStart(code)) {
            return this.jsxReadWord();
          }

          if (code === 62) {
            ++this.state.pos;
            return this.finishToken(types.jsxTagEnd);
          }

          if ((code === 34 || code === 39) && context === types$1.j_oTag) {
            return this.jsxReadString(code);
          }
        }

        if (code === 60 && this.state.exprAllowed) {
          ++this.state.pos;
          return this.finishToken(types.jsxTagStart);
        }

        return inner.call(this, code);
      };
    });

    instance.extend("updateContext", function (inner) {
      return function (prevType) {
        if (this.match(types.braceL)) {
          var curContext = this.curContext();
          if (curContext === types$1.j_oTag) {
            this.state.context.push(types$1.braceExpression);
          } else if (curContext === types$1.j_expr) {
            this.state.context.push(types$1.templateQuasi);
          } else {
            inner.call(this, prevType);
          }
          this.state.exprAllowed = true;
        } else if (this.match(types.slash) && prevType === types.jsxTagStart) {
          this.state.context.length -= 2; // do not consider JSX expr -> JSX open tag -> ... anymore
          this.state.context.push(types$1.j_cTag); // reconsider as closing tag context
          this.state.exprAllowed = false;
        } else {
          return inner.call(this, prevType);
        }
      };
    });
  };

  plugins.estree = estreePlugin;
  plugins.flow = flowPlugin;
  plugins.jsx = jsxPlugin;

  function parse(input, options) {
    return new Parser(options, input).parse();
  }

  function parseExpression(input, options) {
    var parser = new Parser(options, input);
    if (parser.options.strictMode) {
      parser.state.strict = true;
    }
    return parser.getExpression();
  }

  exports.parse = parse;
  exports.parseExpression = parseExpression;
  exports.tokTypes = types;
});
$__System.registerDynamic("10", ["d8", "13b", "d6", "119", "d5", "dc", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _symbol = $__require("d8");

  var _symbol2 = _interopRequireDefault(_symbol);

  exports.default = function (code, opts) {
    var stack = void 0;
    try {
      throw new Error();
    } catch (error) {
      if (error.stack) {
        stack = error.stack.split("\n").slice(1).join("\n");
      }
    }

    opts = (0, _assign2.default)({
      allowReturnOutsideFunction: true,
      allowSuperOutsideMethod: true,
      preserveComments: false
    }, opts);

    var _getAst = function getAst() {
      var ast = void 0;

      try {
        ast = babylon.parse(code, opts);

        ast = _babelTraverse2.default.removeProperties(ast, { preserveComments: opts.preserveComments });

        _babelTraverse2.default.cheap(ast, function (node) {
          node[FROM_TEMPLATE] = true;
        });
      } catch (err) {
        err.stack = err.stack + "from\n" + stack;
        throw err;
      }

      _getAst = function getAst() {
        return ast;
      };

      return ast;
    };

    return function () {
      for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
        args[_key] = arguments[_key];
      }

      return useTemplate(_getAst(), args);
    };
  };

  var _cloneDeep = $__require("13b");

  var _cloneDeep2 = _interopRequireDefault(_cloneDeep);

  var _assign = $__require("d6");

  var _assign2 = _interopRequireDefault(_assign);

  var _has = $__require("119");

  var _has2 = _interopRequireDefault(_has);

  var _babelTraverse = $__require("d5");

  var _babelTraverse2 = _interopRequireDefault(_babelTraverse);

  var _babylon = $__require("dc");

  var babylon = _interopRequireWildcard(_babylon);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var FROM_TEMPLATE = "_fromTemplate";
  var TEMPLATE_SKIP = (0, _symbol2.default)();

  function useTemplate(ast, nodes) {
    ast = (0, _cloneDeep2.default)(ast);
    var _ast = ast,
        program = _ast.program;

    if (nodes.length) {
      (0, _babelTraverse2.default)(ast, templateVisitor, null, nodes);
    }

    if (program.body.length > 1) {
      return program.body;
    } else {
      return program.body[0];
    }
  }

  var templateVisitor = {
    noScope: true,

    enter: function enter(path, args) {
      var node = path.node;

      if (node[TEMPLATE_SKIP]) return path.skip();

      if (t.isExpressionStatement(node)) {
        node = node.expression;
      }

      var replacement = void 0;

      if (t.isIdentifier(node) && node[FROM_TEMPLATE]) {
        if ((0, _has2.default)(args[0], node.name)) {
          replacement = args[0][node.name];
        } else if (node.name[0] === "$") {
          var i = +node.name.slice(1);
          if (args[i]) replacement = args[i];
        }
      }

      if (replacement === null) {
        path.remove();
      }

      if (replacement) {
        replacement[TEMPLATE_SKIP] = true;
        path.replaceInline(replacement);
      }
    },
    exit: function exit(_ref) {
      var node = _ref.node;

      if (!node.loc) _babelTraverse2.default.clearNode(node);
    }
  };
  module.exports = exports["default"];
});
$__System.registerDynamic("1a5", ["d8", "d9", "1f", "d5", "138", "11", "18e", "13a", "10"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _symbol = $__require("d8");

  var _symbol2 = _interopRequireDefault(_symbol);

  var _create = $__require("d9");

  var _create2 = _interopRequireDefault(_create);

  var _classCallCheck2 = $__require("1f");

  var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

  exports.default = function () {
    return {
      visitor: {
        VariableDeclaration: function VariableDeclaration(path, file) {
          var node = path.node,
              parent = path.parent,
              scope = path.scope;

          if (!isBlockScoped(node)) return;
          convertBlockScopedToVar(path, null, parent, scope, true);

          if (node._tdzThis) {
            var nodes = [node];

            for (var i = 0; i < node.declarations.length; i++) {
              var decl = node.declarations[i];
              if (decl.init) {
                var assign = t.assignmentExpression("=", decl.id, decl.init);
                assign._ignoreBlockScopingTDZ = true;
                nodes.push(t.expressionStatement(assign));
              }
              decl.init = file.addHelper("temporalUndefined");
            }

            node._blockHoist = 2;

            if (path.isCompletionRecord()) {
              nodes.push(t.expressionStatement(scope.buildUndefinedNode()));
            }

            path.replaceWithMultiple(nodes);
          }
        },
        Loop: function Loop(path, file) {
          var node = path.node,
              parent = path.parent,
              scope = path.scope;

          t.ensureBlock(node);
          var blockScoping = new BlockScoping(path, path.get("body"), parent, scope, file);
          var replace = blockScoping.run();
          if (replace) path.replaceWith(replace);
        },
        CatchClause: function CatchClause(path, file) {
          var parent = path.parent,
              scope = path.scope;

          var blockScoping = new BlockScoping(null, path.get("body"), parent, scope, file);
          blockScoping.run();
        },
        "BlockStatement|SwitchStatement|Program": function BlockStatementSwitchStatementProgram(path, file) {
          if (!ignoreBlock(path)) {
            var blockScoping = new BlockScoping(null, path, path.parent, path.scope, file);
            blockScoping.run();
          }
        }
      }
    };
  };

  var _babelTraverse = $__require("d5");

  var _babelTraverse2 = _interopRequireDefault(_babelTraverse);

  var _tdz = $__require("138");

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _values = $__require("18e");

  var _values2 = _interopRequireDefault(_values);

  var _extend = $__require("13a");

  var _extend2 = _interopRequireDefault(_extend);

  var _babelTemplate = $__require("10");

  var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function ignoreBlock(path) {
    return t.isLoop(path.parent) || t.isCatchClause(path.parent);
  }

  var buildRetCheck = (0, _babelTemplate2.default)("\n  if (typeof RETURN === \"object\") return RETURN.v;\n");

  function isBlockScoped(node) {
    if (!t.isVariableDeclaration(node)) return false;
    if (node[t.BLOCK_SCOPED_SYMBOL]) return true;
    if (node.kind !== "let" && node.kind !== "const") return false;
    return true;
  }

  function convertBlockScopedToVar(path, node, parent, scope) {
    var moveBindingsToParent = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;

    if (!node) {
      node = path.node;
    }

    if (!t.isFor(parent)) {
      for (var i = 0; i < node.declarations.length; i++) {
        var declar = node.declarations[i];
        declar.init = declar.init || scope.buildUndefinedNode();
      }
    }

    node[t.BLOCK_SCOPED_SYMBOL] = true;
    node.kind = "var";

    if (moveBindingsToParent) {
      var parentScope = scope.getFunctionParent();
      var ids = path.getBindingIdentifiers();
      for (var name in ids) {
        var binding = scope.getOwnBinding(name);
        if (binding) binding.kind = "var";
        scope.moveBindingTo(name, parentScope);
      }
    }
  }

  function isVar(node) {
    return t.isVariableDeclaration(node, { kind: "var" }) && !isBlockScoped(node);
  }

  var letReferenceBlockVisitor = _babelTraverse2.default.visitors.merge([{
    Loop: {
      enter: function enter(path, state) {
        state.loopDepth++;
      },
      exit: function exit(path, state) {
        state.loopDepth--;
      }
    },
    Function: function Function(path, state) {
      if (state.loopDepth > 0) {
        path.traverse(letReferenceFunctionVisitor, state);
      }
      return path.skip();
    }
  }, _tdz.visitor]);

  var letReferenceFunctionVisitor = _babelTraverse2.default.visitors.merge([{
    ReferencedIdentifier: function ReferencedIdentifier(path, state) {
      var ref = state.letReferences[path.node.name];

      if (!ref) return;

      var localBinding = path.scope.getBindingIdentifier(path.node.name);
      if (localBinding && localBinding !== ref) return;

      state.closurify = true;
    }
  }, _tdz.visitor]);

  var hoistVarDeclarationsVisitor = {
    enter: function enter(path, self) {
      var node = path.node,
          parent = path.parent;

      if (path.isForStatement()) {
        if (isVar(node.init, node)) {
          var nodes = self.pushDeclar(node.init);
          if (nodes.length === 1) {
            node.init = nodes[0];
          } else {
            node.init = t.sequenceExpression(nodes);
          }
        }
      } else if (path.isFor()) {
        if (isVar(node.left, node)) {
          self.pushDeclar(node.left);
          node.left = node.left.declarations[0].id;
        }
      } else if (isVar(node, parent)) {
        path.replaceWithMultiple(self.pushDeclar(node).map(function (expr) {
          return t.expressionStatement(expr);
        }));
      } else if (path.isFunction()) {
        return path.skip();
      }
    }
  };

  var loopLabelVisitor = {
    LabeledStatement: function LabeledStatement(_ref, state) {
      var node = _ref.node;

      state.innerLabels.push(node.label.name);
    }
  };

  var continuationVisitor = {
    enter: function enter(path, state) {
      if (path.isAssignmentExpression() || path.isUpdateExpression()) {
        var bindings = path.getBindingIdentifiers();
        for (var name in bindings) {
          if (state.outsideReferences[name] !== path.scope.getBindingIdentifier(name)) continue;
          state.reassignments[name] = true;
        }
      }
    }
  };

  function loopNodeTo(node) {
    if (t.isBreakStatement(node)) {
      return "break";
    } else if (t.isContinueStatement(node)) {
      return "continue";
    }
  }

  var loopVisitor = {
    Loop: function Loop(path, state) {
      var oldIgnoreLabeless = state.ignoreLabeless;
      state.ignoreLabeless = true;
      path.traverse(loopVisitor, state);
      state.ignoreLabeless = oldIgnoreLabeless;
      path.skip();
    },
    Function: function Function(path) {
      path.skip();
    },
    SwitchCase: function SwitchCase(path, state) {
      var oldInSwitchCase = state.inSwitchCase;
      state.inSwitchCase = true;
      path.traverse(loopVisitor, state);
      state.inSwitchCase = oldInSwitchCase;
      path.skip();
    },
    "BreakStatement|ContinueStatement|ReturnStatement": function BreakStatementContinueStatementReturnStatement(path, state) {
      var node = path.node,
          parent = path.parent,
          scope = path.scope;

      if (node[this.LOOP_IGNORE]) return;

      var replace = void 0;
      var loopText = loopNodeTo(node);

      if (loopText) {
        if (node.label) {
          if (state.innerLabels.indexOf(node.label.name) >= 0) {
            return;
          }

          loopText = loopText + "|" + node.label.name;
        } else {
          if (state.ignoreLabeless) return;

          if (state.inSwitchCase) return;

          if (t.isBreakStatement(node) && t.isSwitchCase(parent)) return;
        }

        state.hasBreakContinue = true;
        state.map[loopText] = node;
        replace = t.stringLiteral(loopText);
      }

      if (path.isReturnStatement()) {
        state.hasReturn = true;
        replace = t.objectExpression([t.objectProperty(t.identifier("v"), node.argument || scope.buildUndefinedNode())]);
      }

      if (replace) {
        replace = t.returnStatement(replace);
        replace[this.LOOP_IGNORE] = true;
        path.skip();
        path.replaceWith(t.inherits(replace, node));
      }
    }
  };

  var BlockScoping = function () {
    function BlockScoping(loopPath, blockPath, parent, scope, file) {
      (0, _classCallCheck3.default)(this, BlockScoping);

      this.parent = parent;
      this.scope = scope;
      this.file = file;

      this.blockPath = blockPath;
      this.block = blockPath.node;

      this.outsideLetReferences = (0, _create2.default)(null);
      this.hasLetReferences = false;
      this.letReferences = (0, _create2.default)(null);
      this.body = [];

      if (loopPath) {
        this.loopParent = loopPath.parent;
        this.loopLabel = t.isLabeledStatement(this.loopParent) && this.loopParent.label;
        this.loopPath = loopPath;
        this.loop = loopPath.node;
      }
    }

    BlockScoping.prototype.run = function run() {
      var block = this.block;
      if (block._letDone) return;
      block._letDone = true;

      var needsClosure = this.getLetReferences();

      if (t.isFunction(this.parent) || t.isProgram(this.block)) {
        this.updateScopeInfo();
        return;
      }

      if (!this.hasLetReferences) return;

      if (needsClosure) {
        this.wrapClosure();
      } else {
        this.remap();
      }

      this.updateScopeInfo(needsClosure);

      if (this.loopLabel && !t.isLabeledStatement(this.loopParent)) {
        return t.labeledStatement(this.loopLabel, this.loop);
      }
    };

    BlockScoping.prototype.updateScopeInfo = function updateScopeInfo(wrappedInClosure) {
      var scope = this.scope;
      var parentScope = scope.getFunctionParent();
      var letRefs = this.letReferences;

      for (var key in letRefs) {
        var ref = letRefs[key];
        var binding = scope.getBinding(ref.name);
        if (!binding) continue;
        if (binding.kind === "let" || binding.kind === "const") {
          binding.kind = "var";

          if (wrappedInClosure) {
            scope.removeBinding(ref.name);
          } else {
            scope.moveBindingTo(ref.name, parentScope);
          }
        }
      }
    };

    BlockScoping.prototype.remap = function remap() {
      var letRefs = this.letReferences;
      var scope = this.scope;

      for (var key in letRefs) {
        var ref = letRefs[key];

        if (scope.parentHasBinding(key) || scope.hasGlobal(key)) {
          if (scope.hasOwnBinding(key)) scope.rename(ref.name);

          if (this.blockPath.scope.hasOwnBinding(key)) this.blockPath.scope.rename(ref.name);
        }
      }
    };

    BlockScoping.prototype.wrapClosure = function wrapClosure() {
      if (this.file.opts.throwIfClosureRequired) {
        throw this.blockPath.buildCodeFrameError("Compiling let/const in this block would add a closure " + "(throwIfClosureRequired).");
      }
      var block = this.block;

      var outsideRefs = this.outsideLetReferences;

      if (this.loop) {
        for (var name in outsideRefs) {
          var id = outsideRefs[name];

          if (this.scope.hasGlobal(id.name) || this.scope.parentHasBinding(id.name)) {
            delete outsideRefs[id.name];
            delete this.letReferences[id.name];

            this.scope.rename(id.name);

            this.letReferences[id.name] = id;
            outsideRefs[id.name] = id;
          }
        }
      }

      this.has = this.checkLoop();

      this.hoistVarDeclarations();

      var params = (0, _values2.default)(outsideRefs);
      var args = (0, _values2.default)(outsideRefs);

      var isSwitch = this.blockPath.isSwitchStatement();

      var fn = t.functionExpression(null, params, t.blockStatement(isSwitch ? [block] : block.body));
      fn.shadow = true;

      this.addContinuations(fn);

      var ref = fn;

      if (this.loop) {
        ref = this.scope.generateUidIdentifier("loop");
        this.loopPath.insertBefore(t.variableDeclaration("var", [t.variableDeclarator(ref, fn)]));
      }

      var call = t.callExpression(ref, args);
      var ret = this.scope.generateUidIdentifier("ret");

      var hasYield = _babelTraverse2.default.hasType(fn.body, this.scope, "YieldExpression", t.FUNCTION_TYPES);
      if (hasYield) {
        fn.generator = true;
        call = t.yieldExpression(call, true);
      }

      var hasAsync = _babelTraverse2.default.hasType(fn.body, this.scope, "AwaitExpression", t.FUNCTION_TYPES);
      if (hasAsync) {
        fn.async = true;
        call = t.awaitExpression(call);
      }

      this.buildClosure(ret, call);

      if (isSwitch) this.blockPath.replaceWithMultiple(this.body);else block.body = this.body;
    };

    BlockScoping.prototype.buildClosure = function buildClosure(ret, call) {
      var has = this.has;
      if (has.hasReturn || has.hasBreakContinue) {
        this.buildHas(ret, call);
      } else {
        this.body.push(t.expressionStatement(call));
      }
    };

    BlockScoping.prototype.addContinuations = function addContinuations(fn) {
      var state = {
        reassignments: {},
        outsideReferences: this.outsideLetReferences
      };

      this.scope.traverse(fn, continuationVisitor, state);

      for (var i = 0; i < fn.params.length; i++) {
        var param = fn.params[i];
        if (!state.reassignments[param.name]) continue;

        var newParam = this.scope.generateUidIdentifier(param.name);
        fn.params[i] = newParam;

        this.scope.rename(param.name, newParam.name, fn);

        fn.body.body.push(t.expressionStatement(t.assignmentExpression("=", param, newParam)));
      }
    };

    BlockScoping.prototype.getLetReferences = function getLetReferences() {
      var _this = this;

      var block = this.block;

      var declarators = [];

      if (this.loop) {
        var init = this.loop.left || this.loop.init;
        if (isBlockScoped(init)) {
          declarators.push(init);
          (0, _extend2.default)(this.outsideLetReferences, t.getBindingIdentifiers(init));
        }
      }

      var addDeclarationsFromChild = function addDeclarationsFromChild(path, node) {
        node = node || path.node;
        if (t.isClassDeclaration(node) || t.isFunctionDeclaration(node) || isBlockScoped(node)) {
          if (isBlockScoped(node)) {
            convertBlockScopedToVar(path, node, block, _this.scope);
          }
          declarators = declarators.concat(node.declarations || node);
        }
        if (t.isLabeledStatement(node)) {
          addDeclarationsFromChild(path.get("body"), node.body);
        }
      };

      if (block.body) {
        for (var i = 0; i < block.body.length; i++) {
          var declarPath = this.blockPath.get("body")[i];
          addDeclarationsFromChild(declarPath);
        }
      }

      if (block.cases) {
        for (var _i = 0; _i < block.cases.length; _i++) {
          var consequents = block.cases[_i].consequent;

          for (var j = 0; j < consequents.length; j++) {
            var _declarPath = this.blockPath.get("cases")[_i];
            var declar = consequents[j];
            addDeclarationsFromChild(_declarPath, declar);
          }
        }
      }

      for (var _i2 = 0; _i2 < declarators.length; _i2++) {
        var _declar = declarators[_i2];

        var keys = t.getBindingIdentifiers(_declar, false, true);
        (0, _extend2.default)(this.letReferences, keys);
        this.hasLetReferences = true;
      }

      if (!this.hasLetReferences) return;

      var state = {
        letReferences: this.letReferences,
        closurify: false,
        file: this.file,
        loopDepth: 0
      };

      var loopOrFunctionParent = this.blockPath.find(function (path) {
        return path.isLoop() || path.isFunction();
      });
      if (loopOrFunctionParent && loopOrFunctionParent.isLoop()) {
        state.loopDepth++;
      }

      this.blockPath.traverse(letReferenceBlockVisitor, state);

      return state.closurify;
    };

    BlockScoping.prototype.checkLoop = function checkLoop() {
      var state = {
        hasBreakContinue: false,
        ignoreLabeless: false,
        inSwitchCase: false,
        innerLabels: [],
        hasReturn: false,
        isLoop: !!this.loop,
        map: {},
        LOOP_IGNORE: (0, _symbol2.default)()
      };

      this.blockPath.traverse(loopLabelVisitor, state);
      this.blockPath.traverse(loopVisitor, state);

      return state;
    };

    BlockScoping.prototype.hoistVarDeclarations = function hoistVarDeclarations() {
      this.blockPath.traverse(hoistVarDeclarationsVisitor, this);
    };

    BlockScoping.prototype.pushDeclar = function pushDeclar(node) {
      var declars = [];
      var names = t.getBindingIdentifiers(node);
      for (var name in names) {
        declars.push(t.variableDeclarator(names[name]));
      }

      this.body.push(t.variableDeclaration(node.kind, declars));

      var replace = [];

      for (var i = 0; i < node.declarations.length; i++) {
        var declar = node.declarations[i];
        if (!declar.init) continue;

        var expr = t.assignmentExpression("=", declar.id, declar.init);
        replace.push(t.inherits(expr, declar));
      }

      return replace;
    };

    BlockScoping.prototype.buildHas = function buildHas(ret, call) {
      var body = this.body;

      body.push(t.variableDeclaration("var", [t.variableDeclarator(ret, call)]));

      var retCheck = void 0;
      var has = this.has;
      var cases = [];

      if (has.hasReturn) {
        retCheck = buildRetCheck({
          RETURN: ret
        });
      }

      if (has.hasBreakContinue) {
        for (var key in has.map) {
          cases.push(t.switchCase(t.stringLiteral(key), [has.map[key]]));
        }

        if (has.hasReturn) {
          cases.push(t.switchCase(null, [retCheck]));
        }

        if (cases.length === 1) {
          var single = cases[0];
          body.push(t.ifStatement(t.binaryExpression("===", ret, single.test), single.consequent[0]));
        } else {
          if (this.loop) {
            for (var i = 0; i < cases.length; i++) {
              var caseConsequent = cases[i].consequent[0];
              if (t.isBreakStatement(caseConsequent) && !caseConsequent.label) {
                caseConsequent.label = this.loopLabel = this.loopLabel || this.scope.generateUidIdentifier("loop");
              }
            }
          }

          body.push(t.switchStatement(ret, cases));
        }
      } else {
        if (has.hasReturn) {
          body.push(retCheck);
        }
      }
    };

    return BlockScoping;
  }();

  module.exports = exports["default"];
});
$__System.registerDynamic("1a6", ["15", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _keys = $__require("15");

  var _keys2 = _interopRequireDefault(_keys);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var hasOwn = Object.prototype.hasOwnProperty;

  // The hoist function takes a FunctionExpression or FunctionDeclaration
  // and replaces any Declaration nodes in its body with assignments, then
  // returns a VariableDeclaration containing just the names of the removed
  // declarations.
  /**
   * Copyright (c) 2014, Facebook, Inc.
   * All rights reserved.
   *
   * This source code is licensed under the BSD-style license found in the
   * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
   * additional grant of patent rights can be found in the PATENTS file in
   * the same directory.
   */

  exports.hoist = function (funPath) {
    t.assertFunction(funPath.node);

    var vars = {};

    function varDeclToExpr(vdec, includeIdentifiers) {
      t.assertVariableDeclaration(vdec);
      // TODO assert.equal(vdec.kind, "var");
      var exprs = [];

      vdec.declarations.forEach(function (dec) {
        // Note: We duplicate 'dec.id' here to ensure that the variable declaration IDs don't
        // have the same 'loc' value, since that can make sourcemaps and retainLines behave poorly.
        vars[dec.id.name] = t.identifier(dec.id.name);

        if (dec.init) {
          exprs.push(t.assignmentExpression("=", dec.id, dec.init));
        } else if (includeIdentifiers) {
          exprs.push(dec.id);
        }
      });

      if (exprs.length === 0) return null;

      if (exprs.length === 1) return exprs[0];

      return t.sequenceExpression(exprs);
    }

    funPath.get("body").traverse({
      VariableDeclaration: {
        exit: function exit(path) {
          var expr = varDeclToExpr(path.node, false);
          if (expr === null) {
            path.remove();
          } else {
            // We don't need to traverse this expression any further because
            // there can't be any new declarations inside an expression.
            path.replaceWith(t.expressionStatement(expr));
          }

          // Since the original node has been either removed or replaced,
          // avoid traversing it any further.
          path.skip();
        }
      },

      ForStatement: function ForStatement(path) {
        var init = path.node.init;
        if (t.isVariableDeclaration(init)) {
          path.get("init").replaceWith(varDeclToExpr(init, false));
        }
      },

      ForXStatement: function ForXStatement(path) {
        var left = path.get("left");
        if (left.isVariableDeclaration()) {
          left.replaceWith(varDeclToExpr(left.node, true));
        }
      },

      FunctionDeclaration: function FunctionDeclaration(path) {
        var node = path.node;
        vars[node.id.name] = node.id;

        var assignment = t.expressionStatement(t.assignmentExpression("=", node.id, t.functionExpression(node.id, node.params, node.body, node.generator, node.expression)));

        if (path.parentPath.isBlockStatement()) {
          // Insert the assignment form before the first statement in the
          // enclosing block.
          path.parentPath.unshiftContainer("body", assignment);

          // Remove the function declaration now that we've inserted the
          // equivalent assignment form at the beginning of the block.
          path.remove();
        } else {
          // If the parent node is not a block statement, then we can just
          // replace the declaration with the equivalent assignment form
          // without worrying about hoisting it.
          path.replaceWith(assignment);
        }

        // Don't hoist variables out of inner functions.
        path.skip();
      },

      FunctionExpression: function FunctionExpression(path) {
        // Don't descend into nested function expressions.
        path.skip();
      }
    });

    var paramNames = {};
    funPath.get("params").forEach(function (paramPath) {
      var param = paramPath.node;
      if (t.isIdentifier(param)) {
        paramNames[param.name] = param;
      } else {
        // Variables declared by destructuring parameter patterns will be
        // harmlessly re-declared.
      }
    });

    var declarations = [];

    (0, _keys2.default)(vars).forEach(function (name) {
      if (!hasOwn.call(paramNames, name)) {
        declarations.push(t.variableDeclarator(vars[name], null));
      }
    });

    if (declarations.length === 0) {
      return null; // Be sure to handle this case!
    }

    return t.variableDeclaration("var", declarations);
  };
});
$__System.registerDynamic("1a7", ["1a8", "11", "a9", "1a9"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _assert = $__require("1a8");

  var _assert2 = _interopRequireDefault(_assert);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _util = $__require("a9");

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function Entry() {
    _assert2.default.ok(this instanceof Entry);
  } /**
     * Copyright (c) 2014, Facebook, Inc.
     * All rights reserved.
     *
     * This source code is licensed under the BSD-style license found in the
     * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
     * additional grant of patent rights can be found in the PATENTS file in
     * the same directory.
     */

  function FunctionEntry(returnLoc) {
    Entry.call(this);
    t.assertLiteral(returnLoc);
    this.returnLoc = returnLoc;
  }

  (0, _util.inherits)(FunctionEntry, Entry);
  exports.FunctionEntry = FunctionEntry;

  function LoopEntry(breakLoc, continueLoc, label) {
    Entry.call(this);

    t.assertLiteral(breakLoc);
    t.assertLiteral(continueLoc);

    if (label) {
      t.assertIdentifier(label);
    } else {
      label = null;
    }

    this.breakLoc = breakLoc;
    this.continueLoc = continueLoc;
    this.label = label;
  }

  (0, _util.inherits)(LoopEntry, Entry);
  exports.LoopEntry = LoopEntry;

  function SwitchEntry(breakLoc) {
    Entry.call(this);
    t.assertLiteral(breakLoc);
    this.breakLoc = breakLoc;
  }

  (0, _util.inherits)(SwitchEntry, Entry);
  exports.SwitchEntry = SwitchEntry;

  function TryEntry(firstLoc, catchEntry, finallyEntry) {
    Entry.call(this);

    t.assertLiteral(firstLoc);

    if (catchEntry) {
      _assert2.default.ok(catchEntry instanceof CatchEntry);
    } else {
      catchEntry = null;
    }

    if (finallyEntry) {
      _assert2.default.ok(finallyEntry instanceof FinallyEntry);
    } else {
      finallyEntry = null;
    }

    // Have to have one or the other (or both).
    _assert2.default.ok(catchEntry || finallyEntry);

    this.firstLoc = firstLoc;
    this.catchEntry = catchEntry;
    this.finallyEntry = finallyEntry;
  }

  (0, _util.inherits)(TryEntry, Entry);
  exports.TryEntry = TryEntry;

  function CatchEntry(firstLoc, paramId) {
    Entry.call(this);

    t.assertLiteral(firstLoc);
    t.assertIdentifier(paramId);

    this.firstLoc = firstLoc;
    this.paramId = paramId;
  }

  (0, _util.inherits)(CatchEntry, Entry);
  exports.CatchEntry = CatchEntry;

  function FinallyEntry(firstLoc, afterLoc) {
    Entry.call(this);
    t.assertLiteral(firstLoc);
    t.assertLiteral(afterLoc);
    this.firstLoc = firstLoc;
    this.afterLoc = afterLoc;
  }

  (0, _util.inherits)(FinallyEntry, Entry);
  exports.FinallyEntry = FinallyEntry;

  function LabeledEntry(breakLoc, label) {
    Entry.call(this);

    t.assertLiteral(breakLoc);
    t.assertIdentifier(label);

    this.breakLoc = breakLoc;
    this.label = label;
  }

  (0, _util.inherits)(LabeledEntry, Entry);
  exports.LabeledEntry = LabeledEntry;

  function LeapManager(emitter) {
    _assert2.default.ok(this instanceof LeapManager);

    var Emitter = $__require("1a9").Emitter;
    _assert2.default.ok(emitter instanceof Emitter);

    this.emitter = emitter;
    this.entryStack = [new FunctionEntry(emitter.finalLoc)];
  }

  var LMp = LeapManager.prototype;
  exports.LeapManager = LeapManager;

  LMp.withEntry = function (entry, callback) {
    _assert2.default.ok(entry instanceof Entry);
    this.entryStack.push(entry);
    try {
      callback.call(this.emitter);
    } finally {
      var popped = this.entryStack.pop();
      _assert2.default.strictEqual(popped, entry);
    }
  };

  LMp._findLeapLocation = function (property, label) {
    for (var i = this.entryStack.length - 1; i >= 0; --i) {
      var entry = this.entryStack[i];
      var loc = entry[property];
      if (loc) {
        if (label) {
          if (entry.label && entry.label.name === label.name) {
            return loc;
          }
        } else if (entry instanceof LabeledEntry) {
          // Ignore LabeledEntry entries unless we are actually breaking to
          // a label.
        } else {
          return loc;
        }
      }
    }

    return null;
  };

  LMp.getBreakLoc = function (label) {
    return this._findLeapLocation("breakLoc", label);
  };

  LMp.getContinueLoc = function (label) {
    return this._findLeapLocation("continueLoc", label);
  };
});
$__System.registerDynamic('1aa', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /*
   * From https://github.com/defunctzombie/node-util/blob/master/support/isBufferBrowser.js
   */

  module.exports = function isBuffer(arg) {
    return arg && typeof arg === 'object' && typeof arg.copy === 'function' && typeof arg.fill === 'function' && typeof arg.readUInt8 === 'function';
  };
});
$__System.registerDynamic('a9', ['c', '1aa'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /*
   * Fork of https://raw.githubusercontent.com/defunctzombie/node-util
   * inlining https://github.com/isaacs/inherits/blob/master/inherits_browser.js
   */

  // Copyright Joyent, Inc. and other Node contributors.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a
  // copy of this software and associated documentation files (the
  // "Software"), to deal in the Software without restriction, including
  // without limitation the rights to use, copy, modify, merge, publish,
  // distribute, sublicense, and/or sell copies of the Software, and to permit
  // persons to whom the Software is furnished to do so, subject to the
  // following conditions:
  //
  // The above copyright notice and this permission notice shall be included
  // in all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
  // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
  // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  // USE OR OTHER DEALINGS IN THE SOFTWARE.

  var process = $__require('c');

  var formatRegExp = /%[sdj%]/g;
  exports.format = function (f) {
    if (!isString(f)) {
      var objects = [];
      for (var i = 0; i < arguments.length; i++) {
        objects.push(inspect(arguments[i]));
      }
      return objects.join(' ');
    }

    var i = 1;
    var args = arguments;
    var len = args.length;
    var str = String(f).replace(formatRegExp, function (x) {
      if (x === '%%') return '%';
      if (i >= len) return x;
      switch (x) {
        case '%s':
          return String(args[i++]);
        case '%d':
          return Number(args[i++]);
        case '%j':
          try {
            return JSON.stringify(args[i++]);
          } catch (_) {
            return '[Circular]';
          }
        default:
          return x;
      }
    });
    for (var x = args[i]; i < len; x = args[++i]) {
      if (isNull(x) || !isObject(x)) {
        str += ' ' + x;
      } else {
        str += ' ' + inspect(x);
      }
    }
    return str;
  };

  // Mark that a method should not be used.
  // Returns a modified function which warns once by default.
  // If --no-deprecation is set, then it is a no-op.
  exports.deprecate = function (fn, msg) {
    // Allow for deprecating things in the process of starting up.
    if (isUndefined(global.process)) {
      return function () {
        return exports.deprecate(fn, msg).apply(this, arguments);
      };
    }

    if (process.noDeprecation === true) {
      return fn;
    }

    var warned = false;
    function deprecated() {
      if (!warned) {
        if (process.throwDeprecation) {
          throw new Error(msg);
        } else if (process.traceDeprecation) {
          console.trace(msg);
        } else {
          console.error(msg);
        }
        warned = true;
      }
      return fn.apply(this, arguments);
    }

    return deprecated;
  };

  var debugs = {};
  var debugEnviron;
  exports.debuglog = function (set) {
    if (isUndefined(debugEnviron)) debugEnviron = process.env.NODE_DEBUG || '';
    set = set.toUpperCase();
    if (!debugs[set]) {
      if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
        var pid = process.pid;
        debugs[set] = function () {
          var msg = exports.format.apply(exports, arguments);
          console.error('%s %d: %s', set, pid, msg);
        };
      } else {
        debugs[set] = function () {};
      }
    }
    return debugs[set];
  };

  /**
   * Echos the value of a value. Trys to print the value out
   * in the best way possible given the different types.
   *
   * @param {Object} obj The object to print out.
   * @param {Object} opts Optional options object that alters the output.
   */
  /* legacy: obj, showHidden, depth, colors*/
  function inspect(obj, opts) {
    // default options
    var ctx = {
      seen: [],
      stylize: stylizeNoColor
    };
    // legacy...
    if (arguments.length >= 3) ctx.depth = arguments[2];
    if (arguments.length >= 4) ctx.colors = arguments[3];
    if (isBoolean(opts)) {
      // legacy...
      ctx.showHidden = opts;
    } else if (opts) {
      // got an "options" object
      exports._extend(ctx, opts);
    }
    // set default options
    if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
    if (isUndefined(ctx.depth)) ctx.depth = 2;
    if (isUndefined(ctx.colors)) ctx.colors = false;
    if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
    if (ctx.colors) ctx.stylize = stylizeWithColor;
    return formatValue(ctx, obj, ctx.depth);
  }
  exports.inspect = inspect;

  // http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
  inspect.colors = {
    'bold': [1, 22],
    'italic': [3, 23],
    'underline': [4, 24],
    'inverse': [7, 27],
    'white': [37, 39],
    'grey': [90, 39],
    'black': [30, 39],
    'blue': [34, 39],
    'cyan': [36, 39],
    'green': [32, 39],
    'magenta': [35, 39],
    'red': [31, 39],
    'yellow': [33, 39]
  };

  // Don't use 'blue' not visible on cmd.exe
  inspect.styles = {
    'special': 'cyan',
    'number': 'yellow',
    'boolean': 'yellow',
    'undefined': 'grey',
    'null': 'bold',
    'string': 'green',
    'date': 'magenta',
    // "name": intentionally not styling
    'regexp': 'red'
  };

  function stylizeWithColor(str, styleType) {
    var style = inspect.styles[styleType];

    if (style) {
      return '\u001b[' + inspect.colors[style][0] + 'm' + str + '\u001b[' + inspect.colors[style][1] + 'm';
    } else {
      return str;
    }
  }

  function stylizeNoColor(str, styleType) {
    return str;
  }

  function arrayToHash(array) {
    var hash = {};

    array.forEach(function (val, idx) {
      hash[val] = true;
    });

    return hash;
  }

  function formatValue(ctx, value, recurseTimes) {
    // Provide a hook for user-specified inspect functions.
    // Check that value is an object with an inspect function on it
    if (ctx.customInspect && value && isFunction(value.inspect) &&
    // Filter out the util module, it's inspect function is special
    value.inspect !== exports.inspect &&
    // Also filter out any prototype objects using the circular check.
    !(value.constructor && value.constructor.prototype === value)) {
      var ret = value.inspect(recurseTimes, ctx);
      if (!isString(ret)) {
        ret = formatValue(ctx, ret, recurseTimes);
      }
      return ret;
    }

    // Primitive types cannot have properties
    var primitive = formatPrimitive(ctx, value);
    if (primitive) {
      return primitive;
    }

    // Look up the keys of the object.
    var keys = Object.keys(value);
    var visibleKeys = arrayToHash(keys);

    if (ctx.showHidden) {
      keys = Object.getOwnPropertyNames(value);
    }

    // IE doesn't make error fields non-enumerable
    // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
    if (isError(value) && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
      return formatError(value);
    }

    // Some type of object without properties can be shortcutted.
    if (keys.length === 0) {
      if (isFunction(value)) {
        var name = value.name ? ': ' + value.name : '';
        return ctx.stylize('[Function' + name + ']', 'special');
      }
      if (isRegExp(value)) {
        return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
      }
      if (isDate(value)) {
        return ctx.stylize(Date.prototype.toString.call(value), 'date');
      }
      if (isError(value)) {
        return formatError(value);
      }
    }

    var base = '',
        array = false,
        braces = ['{', '}'];

    // Make Array say that they are Array
    if (isArray(value)) {
      array = true;
      braces = ['[', ']'];
    }

    // Make functions say that they are functions
    if (isFunction(value)) {
      var n = value.name ? ': ' + value.name : '';
      base = ' [Function' + n + ']';
    }

    // Make RegExps say that they are RegExps
    if (isRegExp(value)) {
      base = ' ' + RegExp.prototype.toString.call(value);
    }

    // Make dates with properties first say the date
    if (isDate(value)) {
      base = ' ' + Date.prototype.toUTCString.call(value);
    }

    // Make error with message first say the error
    if (isError(value)) {
      base = ' ' + formatError(value);
    }

    if (keys.length === 0 && (!array || value.length == 0)) {
      return braces[0] + base + braces[1];
    }

    if (recurseTimes < 0) {
      if (isRegExp(value)) {
        return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
      } else {
        return ctx.stylize('[Object]', 'special');
      }
    }

    ctx.seen.push(value);

    var output;
    if (array) {
      output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
    } else {
      output = keys.map(function (key) {
        return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
      });
    }

    ctx.seen.pop();

    return reduceToSingleString(output, base, braces);
  }

  function formatPrimitive(ctx, value) {
    if (isUndefined(value)) return ctx.stylize('undefined', 'undefined');
    if (isString(value)) {
      var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '').replace(/'/g, "\\'").replace(/\\"/g, '"') + '\'';
      return ctx.stylize(simple, 'string');
    }
    if (isNumber(value)) return ctx.stylize('' + value, 'number');
    if (isBoolean(value)) return ctx.stylize('' + value, 'boolean');
    // For some reason typeof null is "object", so special case here.
    if (isNull(value)) return ctx.stylize('null', 'null');
  }

  function formatError(value) {
    return '[' + Error.prototype.toString.call(value) + ']';
  }

  function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
    var output = [];
    for (var i = 0, l = value.length; i < l; ++i) {
      if (hasOwnProperty(value, String(i))) {
        output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, String(i), true));
      } else {
        output.push('');
      }
    }
    keys.forEach(function (key) {
      if (!key.match(/^\d+$/)) {
        output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, key, true));
      }
    });
    return output;
  }

  function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
    var name, str, desc;
    desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
    if (desc.get) {
      if (desc.set) {
        str = ctx.stylize('[Getter/Setter]', 'special');
      } else {
        str = ctx.stylize('[Getter]', 'special');
      }
    } else {
      if (desc.set) {
        str = ctx.stylize('[Setter]', 'special');
      }
    }
    if (!hasOwnProperty(visibleKeys, key)) {
      name = '[' + key + ']';
    }
    if (!str) {
      if (ctx.seen.indexOf(desc.value) < 0) {
        if (isNull(recurseTimes)) {
          str = formatValue(ctx, desc.value, null);
        } else {
          str = formatValue(ctx, desc.value, recurseTimes - 1);
        }
        if (str.indexOf('\n') > -1) {
          if (array) {
            str = str.split('\n').map(function (line) {
              return '  ' + line;
            }).join('\n').substr(2);
          } else {
            str = '\n' + str.split('\n').map(function (line) {
              return '   ' + line;
            }).join('\n');
          }
        }
      } else {
        str = ctx.stylize('[Circular]', 'special');
      }
    }
    if (isUndefined(name)) {
      if (array && key.match(/^\d+$/)) {
        return str;
      }
      name = JSON.stringify('' + key);
      if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
        name = name.substr(1, name.length - 2);
        name = ctx.stylize(name, 'name');
      } else {
        name = name.replace(/'/g, "\\'").replace(/\\"/g, '"').replace(/(^"|"$)/g, "'");
        name = ctx.stylize(name, 'string');
      }
    }

    return name + ': ' + str;
  }

  function reduceToSingleString(output, base, braces) {
    var numLinesEst = 0;
    var length = output.reduce(function (prev, cur) {
      numLinesEst++;
      if (cur.indexOf('\n') >= 0) numLinesEst++;
      return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
    }, 0);

    if (length > 60) {
      return braces[0] + (base === '' ? '' : base + '\n ') + ' ' + output.join(',\n  ') + ' ' + braces[1];
    }

    return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
  }

  // NOTE: These type checking functions intentionally don't use `instanceof`
  // because it is fragile and can be easily faked with `Object.create()`.
  function isArray(ar) {
    return Array.isArray(ar);
  }
  exports.isArray = isArray;

  function isBoolean(arg) {
    return typeof arg === 'boolean';
  }
  exports.isBoolean = isBoolean;

  function isNull(arg) {
    return arg === null;
  }
  exports.isNull = isNull;

  function isNullOrUndefined(arg) {
    return arg == null;
  }
  exports.isNullOrUndefined = isNullOrUndefined;

  function isNumber(arg) {
    return typeof arg === 'number';
  }
  exports.isNumber = isNumber;

  function isString(arg) {
    return typeof arg === 'string';
  }
  exports.isString = isString;

  function isSymbol(arg) {
    return typeof arg === 'symbol';
  }
  exports.isSymbol = isSymbol;

  function isUndefined(arg) {
    return arg === void 0;
  }
  exports.isUndefined = isUndefined;

  function isRegExp(re) {
    return isObject(re) && objectToString(re) === '[object RegExp]';
  }
  exports.isRegExp = isRegExp;

  function isObject(arg) {
    return typeof arg === 'object' && arg !== null;
  }
  exports.isObject = isObject;

  function isDate(d) {
    return isObject(d) && objectToString(d) === '[object Date]';
  }
  exports.isDate = isDate;

  function isError(e) {
    return isObject(e) && (objectToString(e) === '[object Error]' || e instanceof Error);
  }
  exports.isError = isError;

  function isFunction(arg) {
    return typeof arg === 'function';
  }
  exports.isFunction = isFunction;

  function isPrimitive(arg) {
    return arg === null || typeof arg === 'boolean' || typeof arg === 'number' || typeof arg === 'string' || typeof arg === 'symbol' || // ES6 symbol
    typeof arg === 'undefined';
  }
  exports.isPrimitive = isPrimitive;

  exports.isBuffer = $__require('1aa');

  function objectToString(o) {
    return Object.prototype.toString.call(o);
  }

  function pad(n) {
    return n < 10 ? '0' + n.toString(10) : n.toString(10);
  }

  var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

  // 26 Feb 16:19:34
  function timestamp() {
    var d = new Date();
    var time = [pad(d.getHours()), pad(d.getMinutes()), pad(d.getSeconds())].join(':');
    return [d.getDate(), months[d.getMonth()], time].join(' ');
  }

  // log is just a thin wrapper to console.log that prepends a timestamp
  exports.log = function () {
    console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
  };

  /**
   * Inherit the prototype methods from one constructor into another.
   *
   * The Function.prototype.inherits from lang.js rewritten as a standalone
   * function (not on Function.prototype). NOTE: If this file is to be loaded
   * during bootstrapping this function needs to be rewritten using some native
   * functions as prototype setup using normal JavaScript does not work as
   * expected during bootstrapping (see mirror.js in r114903).
   *
   * @param {function} ctor Constructor function which needs to inherit the
   *     prototype.
   * @param {function} superCtor Constructor function to inherit prototype from.
   */
  if (typeof Object.create === 'function') {
    // implementation from standard node.js 'util' module
    exports.inherits = function inherits(ctor, superCtor) {
      ctor.super_ = superCtor;
      ctor.prototype = Object.create(superCtor.prototype, {
        constructor: {
          value: ctor,
          enumerable: false,
          writable: true,
          configurable: true
        }
      });
    };
  } else {
    // old school shim for old browsers
    exports.inherits = function inherits(ctor, superCtor) {
      ctor.super_ = superCtor;
      var TempCtor = function () {};
      TempCtor.prototype = superCtor.prototype;
      ctor.prototype = new TempCtor();
      ctor.prototype.constructor = ctor;
    };
  }

  exports._extend = function (origin, add) {
    // Don't do anything if add isn't an object
    if (!add || !isObject(add)) return origin;

    var keys = Object.keys(add);
    var i = keys.length;
    while (i--) {
      origin[keys[i]] = add[keys[i]];
    }
    return origin;
  };

  function hasOwnProperty(obj, prop) {
    return Object.prototype.hasOwnProperty.call(obj, prop);
  }
});
$__System.registerDynamic('1a8', ['a9'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /*
   * From https://github.com/defunctzombie/commonjs-assert/blob/master/assert.js
   */

  // http://wiki.commonjs.org/wiki/Unit_Testing/1.0
  //
  // Originally from narwhal.js (http://narwhaljs.org)
  // Copyright (c) 2009 Thomas Robinson <280north.com>
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the 'Software'), to
  // deal in the Software without restriction, including without limitation the
  // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  // sell copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

  // when used in node, this will actually load the util module we depend on
  // versus loading the builtin util module as happens otherwise
  // this is a bug in node module loading as far as I am concerned
  var util = $__require('a9');

  var pSlice = Array.prototype.slice;
  var hasOwn = Object.prototype.hasOwnProperty;

  // 1. The assert module provides functions that throw
  // AssertionError's when particular conditions are not met. The
  // assert module must conform to the following interface.

  var assert = module.exports = ok;

  // 2. The AssertionError is defined in assert.
  // new assert.AssertionError({ message: message,
  //                             actual: actual,
  //                             expected: expected })

  assert.AssertionError = function AssertionError(options) {
    this.name = 'AssertionError';
    this.actual = options.actual;
    this.expected = options.expected;
    this.operator = options.operator;
    if (options.message) {
      this.message = options.message;
      this.generatedMessage = false;
    } else {
      this.message = getMessage(this);
      this.generatedMessage = true;
    }
    var stackStartFunction = options.stackStartFunction || fail;

    if (Error.captureStackTrace) {
      Error.captureStackTrace(this, stackStartFunction);
    } else {
      // non v8 browsers so we can have a stacktrace
      var err = new Error();
      if (err.stack) {
        var out = err.stack;

        // try to strip useless frames
        var fn_name = stackStartFunction.name;
        var idx = out.indexOf('\n' + fn_name);
        if (idx >= 0) {
          // once we have located the function frame
          // we need to strip out everything before it (and its line)
          var next_line = out.indexOf('\n', idx + 1);
          out = out.substring(next_line + 1);
        }

        this.stack = out;
      }
    }
  };

  // assert.AssertionError instanceof Error
  util.inherits(assert.AssertionError, Error);

  function replacer(key, value) {
    if (util.isUndefined(value)) {
      return '' + value;
    }
    if (util.isNumber(value) && !isFinite(value)) {
      return value.toString();
    }
    if (util.isFunction(value) || util.isRegExp(value)) {
      return value.toString();
    }
    return value;
  }

  function truncate(s, n) {
    if (util.isString(s)) {
      return s.length < n ? s : s.slice(0, n);
    } else {
      return s;
    }
  }

  function getMessage(self) {
    return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' + self.operator + ' ' + truncate(JSON.stringify(self.expected, replacer), 128);
  }

  // At present only the three keys mentioned above are used and
  // understood by the spec. Implementations or sub modules can pass
  // other keys to the AssertionError's constructor - they will be
  // ignored.

  // 3. All of the following functions must throw an AssertionError
  // when a corresponding condition is not met, with a message that
  // may be undefined if not provided.  All assertion methods provide
  // both the actual and expected values to the assertion error for
  // display purposes.

  function fail(actual, expected, message, operator, stackStartFunction) {
    throw new assert.AssertionError({
      message: message,
      actual: actual,
      expected: expected,
      operator: operator,
      stackStartFunction: stackStartFunction
    });
  }

  // EXTENSION! allows for well behaved errors defined elsewhere.
  assert.fail = fail;

  // 4. Pure assertion tests whether a value is truthy, as determined
  // by !!guard.
  // assert.ok(guard, message_opt);
  // This statement is equivalent to assert.equal(true, !!guard,
  // message_opt);. To test strictly for the value true, use
  // assert.strictEqual(true, guard, message_opt);.

  function ok(value, message) {
    if (!value) fail(value, true, message, '==', assert.ok);
  }
  assert.ok = ok;

  // 5. The equality assertion tests shallow, coercive equality with
  // ==.
  // assert.equal(actual, expected, message_opt);

  assert.equal = function equal(actual, expected, message) {
    if (actual != expected) fail(actual, expected, message, '==', assert.equal);
  };

  // 6. The non-equality assertion tests for whether two objects are not equal
  // with != assert.notEqual(actual, expected, message_opt);

  assert.notEqual = function notEqual(actual, expected, message) {
    if (actual == expected) {
      fail(actual, expected, message, '!=', assert.notEqual);
    }
  };

  // 7. The equivalence assertion tests a deep equality relation.
  // assert.deepEqual(actual, expected, message_opt);

  assert.deepEqual = function deepEqual(actual, expected, message) {
    if (!_deepEqual(actual, expected)) {
      fail(actual, expected, message, 'deepEqual', assert.deepEqual);
    }
  };

  function _deepEqual(actual, expected) {
    // 7.1. All identical values are equivalent, as determined by ===.
    if (actual === expected) {
      return true;
    } else if (util.isBuffer(actual) && util.isBuffer(expected)) {
      if (actual.length != expected.length) return false;

      for (var i = 0; i < actual.length; i++) {
        if (actual[i] !== expected[i]) return false;
      }

      return true;

      // 7.2. If the expected value is a Date object, the actual value is
      // equivalent if it is also a Date object that refers to the same time.
    } else if (util.isDate(actual) && util.isDate(expected)) {
      return actual.getTime() === expected.getTime();

      // 7.3 If the expected value is a RegExp object, the actual value is
      // equivalent if it is also a RegExp object with the same source and
      // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
    } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
      return actual.source === expected.source && actual.global === expected.global && actual.multiline === expected.multiline && actual.lastIndex === expected.lastIndex && actual.ignoreCase === expected.ignoreCase;

      // 7.4. Other pairs that do not both pass typeof value == 'object',
      // equivalence is determined by ==.
    } else if (!util.isObject(actual) && !util.isObject(expected)) {
      return actual == expected;

      // 7.5 For all other Object pairs, including Array objects, equivalence is
      // determined by having the same number of owned properties (as verified
      // with Object.prototype.hasOwnProperty.call), the same set of keys
      // (although not necessarily the same order), equivalent values for every
      // corresponding key, and an identical 'prototype' property. Note: this
      // accounts for both named and indexed properties on Arrays.
    } else {
      return objEquiv(actual, expected);
    }
  }

  function isArguments(object) {
    return Object.prototype.toString.call(object) == '[object Arguments]';
  }

  function objEquiv(a, b) {
    if (util.isNullOrUndefined(a) || util.isNullOrUndefined(b)) return false;
    // an identical 'prototype' property.
    if (a.prototype !== b.prototype) return false;
    // if one is a primitive, the other must be same
    if (util.isPrimitive(a) || util.isPrimitive(b)) {
      return a === b;
    }
    var aIsArgs = isArguments(a),
        bIsArgs = isArguments(b);
    if (aIsArgs && !bIsArgs || !aIsArgs && bIsArgs) return false;
    if (aIsArgs) {
      a = pSlice.call(a);
      b = pSlice.call(b);
      return _deepEqual(a, b);
    }
    var ka = objectKeys(a),
        kb = objectKeys(b),
        key,
        i;
    // having the same number of owned properties (keys incorporates
    // hasOwnProperty)
    if (ka.length != kb.length) return false;
    //the same set of keys (although not necessarily the same order),
    ka.sort();
    kb.sort();
    //~~~cheap key test
    for (i = ka.length - 1; i >= 0; i--) {
      if (ka[i] != kb[i]) return false;
    }
    //equivalent values for every corresponding key, and
    //~~~possibly expensive deep test
    for (i = ka.length - 1; i >= 0; i--) {
      key = ka[i];
      if (!_deepEqual(a[key], b[key])) return false;
    }
    return true;
  }

  // 8. The non-equivalence assertion tests for any deep inequality.
  // assert.notDeepEqual(actual, expected, message_opt);

  assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
    if (_deepEqual(actual, expected)) {
      fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
    }
  };

  // 9. The strict equality assertion tests strict equality, as determined by ===.
  // assert.strictEqual(actual, expected, message_opt);

  assert.strictEqual = function strictEqual(actual, expected, message) {
    if (actual !== expected) {
      fail(actual, expected, message, '===', assert.strictEqual);
    }
  };

  // 10. The strict non-equality assertion tests for strict inequality, as
  // determined by !==.  assert.notStrictEqual(actual, expected, message_opt);

  assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
    if (actual === expected) {
      fail(actual, expected, message, '!==', assert.notStrictEqual);
    }
  };

  function expectedException(actual, expected) {
    if (!actual || !expected) {
      return false;
    }

    if (Object.prototype.toString.call(expected) == '[object RegExp]') {
      return expected.test(actual);
    } else if (actual instanceof expected) {
      return true;
    } else if (expected.call({}, actual) === true) {
      return true;
    }

    return false;
  }

  function _throws(shouldThrow, block, expected, message) {
    var actual;

    if (util.isString(expected)) {
      message = expected;
      expected = null;
    }

    try {
      block();
    } catch (e) {
      actual = e;
    }

    message = (expected && expected.name ? ' (' + expected.name + ').' : '.') + (message ? ' ' + message : '.');

    if (shouldThrow && !actual) {
      fail(actual, expected, 'Missing expected exception' + message);
    }

    if (!shouldThrow && expectedException(actual, expected)) {
      fail(actual, expected, 'Got unwanted exception' + message);
    }

    if (shouldThrow && actual && expected && !expectedException(actual, expected) || !shouldThrow && actual) {
      throw actual;
    }
  }

  // 11. Expected to throw an error:
  // assert.throws(block, Error_opt, message_opt);

  assert.throws = function (block, /*optional*/error, /*optional*/message) {
    _throws.apply(this, [true].concat(pSlice.call(arguments)));
  };

  // EXTENSION! This is annoying to write outside this module.
  assert.doesNotThrow = function (block, /*optional*/message) {
    _throws.apply(this, [false].concat(pSlice.call(arguments)));
  };

  assert.ifError = function (err) {
    if (err) {
      throw err;
    }
  };

  var objectKeys = Object.keys || function (obj) {
    var keys = [];
    for (var key in obj) {
      if (hasOwn.call(obj, key)) keys.push(key);
    }
    return keys;
  };
});
$__System.registerDynamic("1ab", ["1a8", "11", "1ac"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _assert = $__require("1a8");

  var _assert2 = _interopRequireDefault(_assert);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var m = $__require("1ac").makeAccessor(); /**
                                             * Copyright (c) 2014, Facebook, Inc.
                                             * All rights reserved.
                                             *
                                             * This source code is licensed under the BSD-style license found in the
                                             * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
                                             * additional grant of patent rights can be found in the PATENTS file in
                                             * the same directory.
                                             */

  var hasOwn = Object.prototype.hasOwnProperty;

  function makePredicate(propertyName, knownTypes) {
    function onlyChildren(node) {
      t.assertNode(node);

      // Assume no side effects until we find out otherwise.
      var result = false;

      function check(child) {
        if (result) {
          // Do nothing.
        } else if (Array.isArray(child)) {
          child.some(check);
        } else if (t.isNode(child)) {
          _assert2.default.strictEqual(result, false);
          result = predicate(child);
        }
        return result;
      }

      var keys = t.VISITOR_KEYS[node.type];
      if (keys) {
        for (var i = 0; i < keys.length; i++) {
          var key = keys[i];
          var child = node[key];
          check(child);
        }
      }

      return result;
    }

    function predicate(node) {
      t.assertNode(node);

      var meta = m(node);
      if (hasOwn.call(meta, propertyName)) return meta[propertyName];

      // Certain types are "opaque," which means they have no side
      // effects or leaps and we don't care about their subexpressions.
      if (hasOwn.call(opaqueTypes, node.type)) return meta[propertyName] = false;

      if (hasOwn.call(knownTypes, node.type)) return meta[propertyName] = true;

      return meta[propertyName] = onlyChildren(node);
    }

    predicate.onlyChildren = onlyChildren;

    return predicate;
  }

  var opaqueTypes = {
    FunctionExpression: true,
    ArrowFunctionExpression: true
  };

  // These types potentially have side effects regardless of what side
  // effects their subexpressions have.
  var sideEffectTypes = {
    CallExpression: true, // Anything could happen!
    ForInStatement: true, // Modifies the key variable.
    UnaryExpression: true, // Think delete.
    BinaryExpression: true, // Might invoke .toString() or .valueOf().
    AssignmentExpression: true, // Side-effecting by definition.
    UpdateExpression: true, // Updates are essentially assignments.
    NewExpression: true // Similar to CallExpression.
  };

  // These types are the direct cause of all leaps in control flow.
  var leapTypes = {
    YieldExpression: true,
    BreakStatement: true,
    ContinueStatement: true,
    ReturnStatement: true,
    ThrowStatement: true
  };

  // All leap types are also side effect types.
  for (var type in leapTypes) {
    if (hasOwn.call(leapTypes, type)) {
      sideEffectTypes[type] = leapTypes[type];
    }
  }

  exports.hasSideEffects = makePredicate("hasSideEffects", sideEffectTypes);
  exports.containsLeap = makePredicate("containsLeap", leapTypes);
});
$__System.registerDynamic("1a9", ["60", "1a8", "11", "1a7", "1ab", "1ad"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _stringify = $__require("60");

  var _stringify2 = _interopRequireDefault(_stringify);

  var _assert = $__require("1a8");

  var _assert2 = _interopRequireDefault(_assert);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _leap = $__require("1a7");

  var leap = _interopRequireWildcard(_leap);

  var _meta = $__require("1ab");

  var meta = _interopRequireWildcard(_meta);

  var _util = $__require("1ad");

  var util = _interopRequireWildcard(_util);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var hasOwn = Object.prototype.hasOwnProperty; /**
                                                 * Copyright (c) 2014, Facebook, Inc.
                                                 * All rights reserved.
                                                 *
                                                 * This source code is licensed under the BSD-style license found in the
                                                 * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
                                                 * additional grant of patent rights can be found in the PATENTS file in
                                                 * the same directory.
                                                 */

  function Emitter(contextId) {
    _assert2.default.ok(this instanceof Emitter);
    t.assertIdentifier(contextId);

    // Used to generate unique temporary names.
    this.nextTempId = 0;

    // In order to make sure the context object does not collide with
    // anything in the local scope, we might have to rename it, so we
    // refer to it symbolically instead of just assuming that it will be
    // called "context".
    this.contextId = contextId;

    // An append-only list of Statements that grows each time this.emit is
    // called.
    this.listing = [];

    // A sparse array whose keys correspond to locations in this.listing
    // that have been marked as branch/jump targets.
    this.marked = [true];

    // The last location will be marked when this.getDispatchLoop is
    // called.
    this.finalLoc = loc();

    // A list of all leap.TryEntry statements emitted.
    this.tryEntries = [];

    // Each time we evaluate the body of a loop, we tell this.leapManager
    // to enter a nested loop context that determines the meaning of break
    // and continue statements therein.
    this.leapManager = new leap.LeapManager(this);
  }

  var Ep = Emitter.prototype;
  exports.Emitter = Emitter;

  // Offsets into this.listing that could be used as targets for branches or
  // jumps are represented as numeric Literal nodes. This representation has
  // the amazingly convenient benefit of allowing the exact value of the
  // location to be determined at any time, even after generating code that
  // refers to the location.
  function loc() {
    return t.numericLiteral(-1);
  }

  // Sets the exact value of the given location to the offset of the next
  // Statement emitted.
  Ep.mark = function (loc) {
    t.assertLiteral(loc);
    var index = this.listing.length;
    if (loc.value === -1) {
      loc.value = index;
    } else {
      // Locations can be marked redundantly, but their values cannot change
      // once set the first time.
      _assert2.default.strictEqual(loc.value, index);
    }
    this.marked[index] = true;
    return loc;
  };

  Ep.emit = function (node) {
    if (t.isExpression(node)) {
      node = t.expressionStatement(node);
    }

    t.assertStatement(node);
    this.listing.push(node);
  };

  // Shorthand for emitting assignment statements. This will come in handy
  // for assignments to temporary variables.
  Ep.emitAssign = function (lhs, rhs) {
    this.emit(this.assign(lhs, rhs));
    return lhs;
  };

  // Shorthand for an assignment statement.
  Ep.assign = function (lhs, rhs) {
    return t.expressionStatement(t.assignmentExpression("=", lhs, rhs));
  };

  // Convenience function for generating expressions like context.next,
  // context.sent, and context.rval.
  Ep.contextProperty = function (name, computed) {
    return t.memberExpression(this.contextId, computed ? t.stringLiteral(name) : t.identifier(name), !!computed);
  };

  // Shorthand for setting context.rval and jumping to `context.stop()`.
  Ep.stop = function (rval) {
    if (rval) {
      this.setReturnValue(rval);
    }

    this.jump(this.finalLoc);
  };

  Ep.setReturnValue = function (valuePath) {
    t.assertExpression(valuePath.value);

    this.emitAssign(this.contextProperty("rval"), this.explodeExpression(valuePath));
  };

  Ep.clearPendingException = function (tryLoc, assignee) {
    t.assertLiteral(tryLoc);

    var catchCall = t.callExpression(this.contextProperty("catch", true), [tryLoc]);

    if (assignee) {
      this.emitAssign(assignee, catchCall);
    } else {
      this.emit(catchCall);
    }
  };

  // Emits code for an unconditional jump to the given location, even if the
  // exact value of the location is not yet known.
  Ep.jump = function (toLoc) {
    this.emitAssign(this.contextProperty("next"), toLoc);
    this.emit(t.breakStatement());
  };

  // Conditional jump.
  Ep.jumpIf = function (test, toLoc) {
    t.assertExpression(test);
    t.assertLiteral(toLoc);

    this.emit(t.ifStatement(test, t.blockStatement([this.assign(this.contextProperty("next"), toLoc), t.breakStatement()])));
  };

  // Conditional jump, with the condition negated.
  Ep.jumpIfNot = function (test, toLoc) {
    t.assertExpression(test);
    t.assertLiteral(toLoc);

    var negatedTest = void 0;
    if (t.isUnaryExpression(test) && test.operator === "!") {
      // Avoid double negation.
      negatedTest = test.argument;
    } else {
      negatedTest = t.unaryExpression("!", test);
    }

    this.emit(t.ifStatement(negatedTest, t.blockStatement([this.assign(this.contextProperty("next"), toLoc), t.breakStatement()])));
  };

  // Returns a unique MemberExpression that can be used to store and
  // retrieve temporary values. Since the object of the member expression is
  // the context object, which is presumed to coexist peacefully with all
  // other local variables, and since we just increment `nextTempId`
  // monotonically, uniqueness is assured.
  Ep.makeTempVar = function () {
    return this.contextProperty("t" + this.nextTempId++);
  };

  Ep.getContextFunction = function (id) {
    return t.functionExpression(id || null /*Anonymous*/
    , [this.contextId], t.blockStatement([this.getDispatchLoop()]), false, // Not a generator anymore!
    false // Nor an expression.
    );
  };

  // Turns this.listing into a loop of the form
  //
  //   while (1) switch (context.next) {
  //   case 0:
  //   ...
  //   case n:
  //     return context.stop();
  //   }
  //
  // Each marked location in this.listing will correspond to one generated
  // case statement.
  Ep.getDispatchLoop = function () {
    var self = this;
    var cases = [];
    var current = void 0;

    // If we encounter a break, continue, or return statement in a switch
    // case, we can skip the rest of the statements until the next case.
    var alreadyEnded = false;

    self.listing.forEach(function (stmt, i) {
      if (self.marked.hasOwnProperty(i)) {
        cases.push(t.switchCase(t.numericLiteral(i), current = []));
        alreadyEnded = false;
      }

      if (!alreadyEnded) {
        current.push(stmt);
        if (t.isCompletionStatement(stmt)) alreadyEnded = true;
      }
    });

    // Now that we know how many statements there will be in this.listing,
    // we can finally resolve this.finalLoc.value.
    this.finalLoc.value = this.listing.length;

    cases.push(t.switchCase(this.finalLoc, [
      // Intentionally fall through to the "end" case...
    ]),

    // So that the runtime can jump to the final location without having
    // to know its offset, we provide the "end" case as a synonym.
    t.switchCase(t.stringLiteral("end"), [
    // This will check/clear both context.thrown and context.rval.
    t.returnStatement(t.callExpression(this.contextProperty("stop"), []))]));

    return t.whileStatement(t.numericLiteral(1), t.switchStatement(t.assignmentExpression("=", this.contextProperty("prev"), this.contextProperty("next")), cases));
  };

  Ep.getTryLocsList = function () {
    if (this.tryEntries.length === 0) {
      // To avoid adding a needless [] to the majority of runtime.wrap
      // argument lists, force the caller to handle this case specially.
      return null;
    }

    var lastLocValue = 0;

    return t.arrayExpression(this.tryEntries.map(function (tryEntry) {
      var thisLocValue = tryEntry.firstLoc.value;
      _assert2.default.ok(thisLocValue >= lastLocValue, "try entries out of order");
      lastLocValue = thisLocValue;

      var ce = tryEntry.catchEntry;
      var fe = tryEntry.finallyEntry;

      var locs = [tryEntry.firstLoc,
      // The null here makes a hole in the array.
      ce ? ce.firstLoc : null];

      if (fe) {
        locs[2] = fe.firstLoc;
        locs[3] = fe.afterLoc;
      }

      return t.arrayExpression(locs);
    }));
  };

  // All side effects must be realized in order.

  // If any subexpression harbors a leap, all subexpressions must be
  // neutered of side effects.

  // No destructive modification of AST nodes.

  Ep.explode = function (path, ignoreResult) {
    var node = path.node;
    var self = this;

    t.assertNode(node);

    if (t.isDeclaration(node)) throw getDeclError(node);

    if (t.isStatement(node)) return self.explodeStatement(path);

    if (t.isExpression(node)) return self.explodeExpression(path, ignoreResult);

    switch (node.type) {
      case "Program":
        return path.get("body").map(self.explodeStatement, self);

      case "VariableDeclarator":
        throw getDeclError(node);

      // These node types should be handled by their parent nodes
      // (ObjectExpression, SwitchStatement, and TryStatement, respectively).
      case "Property":
      case "SwitchCase":
      case "CatchClause":
        throw new Error(node.type + " nodes should be handled by their parents");

      default:
        throw new Error("unknown Node of type " + (0, _stringify2.default)(node.type));
    }
  };

  function getDeclError(node) {
    return new Error("all declarations should have been transformed into " + "assignments before the Exploder began its work: " + (0, _stringify2.default)(node));
  }

  Ep.explodeStatement = function (path, labelId) {
    var stmt = path.node;
    var self = this;
    var before = void 0,
        after = void 0,
        head = void 0;

    t.assertStatement(stmt);

    if (labelId) {
      t.assertIdentifier(labelId);
    } else {
      labelId = null;
    }

    // Explode BlockStatement nodes even if they do not contain a yield,
    // because we don't want or need the curly braces.
    if (t.isBlockStatement(stmt)) {
      path.get("body").forEach(function (path) {
        self.explodeStatement(path);
      });
      return;
    }

    if (!meta.containsLeap(stmt)) {
      // Technically we should be able to avoid emitting the statement
      // altogether if !meta.hasSideEffects(stmt), but that leads to
      // confusing generated code (for instance, `while (true) {}` just
      // disappears) and is probably a more appropriate job for a dedicated
      // dead code elimination pass.
      self.emit(stmt);
      return;
    }

    switch (stmt.type) {
      case "ExpressionStatement":
        self.explodeExpression(path.get("expression"), true);
        break;

      case "LabeledStatement":
        after = loc();

        // Did you know you can break from any labeled block statement or
        // control structure? Well, you can! Note: when a labeled loop is
        // encountered, the leap.LabeledEntry created here will immediately
        // enclose a leap.LoopEntry on the leap manager's stack, and both
        // entries will have the same label. Though this works just fine, it
        // may seem a bit redundant. In theory, we could check here to
        // determine if stmt knows how to handle its own label; for example,
        // stmt happens to be a WhileStatement and so we know it's going to
        // establish its own LoopEntry when we explode it (below). Then this
        // LabeledEntry would be unnecessary. Alternatively, we might be
        // tempted not to pass stmt.label down into self.explodeStatement,
        // because we've handled the label here, but that's a mistake because
        // labeled loops may contain labeled continue statements, which is not
        // something we can handle in this generic case. All in all, I think a
        // little redundancy greatly simplifies the logic of this case, since
        // it's clear that we handle all possible LabeledStatements correctly
        // here, regardless of whether they interact with the leap manager
        // themselves. Also remember that labels and break/continue-to-label
        // statements are rare, and all of this logic happens at transform
        // time, so it has no additional runtime cost.
        self.leapManager.withEntry(new leap.LabeledEntry(after, stmt.label), function () {
          self.explodeStatement(path.get("body"), stmt.label);
        });

        self.mark(after);

        break;

      case "WhileStatement":
        before = loc();
        after = loc();

        self.mark(before);
        self.jumpIfNot(self.explodeExpression(path.get("test")), after);
        self.leapManager.withEntry(new leap.LoopEntry(after, before, labelId), function () {
          self.explodeStatement(path.get("body"));
        });
        self.jump(before);
        self.mark(after);

        break;

      case "DoWhileStatement":
        var first = loc();
        var test = loc();
        after = loc();

        self.mark(first);
        self.leapManager.withEntry(new leap.LoopEntry(after, test, labelId), function () {
          self.explode(path.get("body"));
        });
        self.mark(test);
        self.jumpIf(self.explodeExpression(path.get("test")), first);
        self.mark(after);

        break;

      case "ForStatement":
        head = loc();
        var update = loc();
        after = loc();

        if (stmt.init) {
          // We pass true here to indicate that if stmt.init is an expression
          // then we do not care about its result.
          self.explode(path.get("init"), true);
        }

        self.mark(head);

        if (stmt.test) {
          self.jumpIfNot(self.explodeExpression(path.get("test")), after);
        } else {
          // No test means continue unconditionally.
        }

        self.leapManager.withEntry(new leap.LoopEntry(after, update, labelId), function () {
          self.explodeStatement(path.get("body"));
        });

        self.mark(update);

        if (stmt.update) {
          // We pass true here to indicate that if stmt.update is an
          // expression then we do not care about its result.
          self.explode(path.get("update"), true);
        }

        self.jump(head);

        self.mark(after);

        break;

      case "TypeCastExpression":
        return self.explodeExpression(path.get("expression"));

      case "ForInStatement":
        head = loc();
        after = loc();

        var keyIterNextFn = self.makeTempVar();
        self.emitAssign(keyIterNextFn, t.callExpression(util.runtimeProperty("keys"), [self.explodeExpression(path.get("right"))]));

        self.mark(head);

        var keyInfoTmpVar = self.makeTempVar();
        self.jumpIf(t.memberExpression(t.assignmentExpression("=", keyInfoTmpVar, t.callExpression(keyIterNextFn, [])), t.identifier("done"), false), after);

        self.emitAssign(stmt.left, t.memberExpression(keyInfoTmpVar, t.identifier("value"), false));

        self.leapManager.withEntry(new leap.LoopEntry(after, head, labelId), function () {
          self.explodeStatement(path.get("body"));
        });

        self.jump(head);

        self.mark(after);

        break;

      case "BreakStatement":
        self.emitAbruptCompletion({
          type: "break",
          target: self.leapManager.getBreakLoc(stmt.label)
        });

        break;

      case "ContinueStatement":
        self.emitAbruptCompletion({
          type: "continue",
          target: self.leapManager.getContinueLoc(stmt.label)
        });

        break;

      case "SwitchStatement":
        // Always save the discriminant into a temporary variable in case the
        // test expressions overwrite values like context.sent.
        var disc = self.emitAssign(self.makeTempVar(), self.explodeExpression(path.get("discriminant")));

        after = loc();
        var defaultLoc = loc();
        var condition = defaultLoc;
        var caseLocs = [];

        // If there are no cases, .cases might be undefined.
        var cases = stmt.cases || [];

        for (var i = cases.length - 1; i >= 0; --i) {
          var c = cases[i];
          t.assertSwitchCase(c);

          if (c.test) {
            condition = t.conditionalExpression(t.binaryExpression("===", disc, c.test), caseLocs[i] = loc(), condition);
          } else {
            caseLocs[i] = defaultLoc;
          }
        }

        var discriminant = path.get("discriminant");
        discriminant.replaceWith(condition);
        self.jump(self.explodeExpression(discriminant));

        self.leapManager.withEntry(new leap.SwitchEntry(after), function () {
          path.get("cases").forEach(function (casePath) {
            var i = casePath.key;
            self.mark(caseLocs[i]);

            casePath.get("consequent").forEach(function (path) {
              self.explodeStatement(path);
            });
          });
        });

        self.mark(after);
        if (defaultLoc.value === -1) {
          self.mark(defaultLoc);
          _assert2.default.strictEqual(after.value, defaultLoc.value);
        }

        break;

      case "IfStatement":
        var elseLoc = stmt.alternate && loc();
        after = loc();

        self.jumpIfNot(self.explodeExpression(path.get("test")), elseLoc || after);

        self.explodeStatement(path.get("consequent"));

        if (elseLoc) {
          self.jump(after);
          self.mark(elseLoc);
          self.explodeStatement(path.get("alternate"));
        }

        self.mark(after);

        break;

      case "ReturnStatement":
        self.emitAbruptCompletion({
          type: "return",
          value: self.explodeExpression(path.get("argument"))
        });

        break;

      case "WithStatement":
        throw new Error("WithStatement not supported in generator functions.");

      case "TryStatement":
        after = loc();

        var handler = stmt.handler;

        var catchLoc = handler && loc();
        var catchEntry = catchLoc && new leap.CatchEntry(catchLoc, handler.param);

        var finallyLoc = stmt.finalizer && loc();
        var finallyEntry = finallyLoc && new leap.FinallyEntry(finallyLoc, after);

        var tryEntry = new leap.TryEntry(self.getUnmarkedCurrentLoc(), catchEntry, finallyEntry);

        self.tryEntries.push(tryEntry);
        self.updateContextPrevLoc(tryEntry.firstLoc);

        self.leapManager.withEntry(tryEntry, function () {
          self.explodeStatement(path.get("block"));

          if (catchLoc) {
            if (finallyLoc) {
              // If we have both a catch block and a finally block, then
              // because we emit the catch block first, we need to jump over
              // it to the finally block.
              self.jump(finallyLoc);
            } else {
              // If there is no finally block, then we need to jump over the
              // catch block to the fall-through location.
              self.jump(after);
            }

            self.updateContextPrevLoc(self.mark(catchLoc));

            var bodyPath = path.get("handler.body");
            var safeParam = self.makeTempVar();
            self.clearPendingException(tryEntry.firstLoc, safeParam);

            bodyPath.traverse(catchParamVisitor, {
              safeParam: safeParam,
              catchParamName: handler.param.name
            });

            self.leapManager.withEntry(catchEntry, function () {
              self.explodeStatement(bodyPath);
            });
          }

          if (finallyLoc) {
            self.updateContextPrevLoc(self.mark(finallyLoc));

            self.leapManager.withEntry(finallyEntry, function () {
              self.explodeStatement(path.get("finalizer"));
            });

            self.emit(t.returnStatement(t.callExpression(self.contextProperty("finish"), [finallyEntry.firstLoc])));
          }
        });

        self.mark(after);

        break;

      case "ThrowStatement":
        self.emit(t.throwStatement(self.explodeExpression(path.get("argument"))));

        break;

      default:
        throw new Error("unknown Statement of type " + (0, _stringify2.default)(stmt.type));
    }
  };

  var catchParamVisitor = {
    Identifier: function Identifier(path, state) {
      if (path.node.name === state.catchParamName && util.isReference(path)) {
        path.replaceWith(state.safeParam);
      }
    },

    Scope: function Scope(path, state) {
      if (path.scope.hasOwnBinding(state.catchParamName)) {
        // Don't descend into nested scopes that shadow the catch
        // parameter with their own declarations.
        path.skip();
      }
    }
  };

  Ep.emitAbruptCompletion = function (record) {
    if (!isValidCompletion(record)) {
      _assert2.default.ok(false, "invalid completion record: " + (0, _stringify2.default)(record));
    }

    _assert2.default.notStrictEqual(record.type, "normal", "normal completions are not abrupt");

    var abruptArgs = [t.stringLiteral(record.type)];

    if (record.type === "break" || record.type === "continue") {
      t.assertLiteral(record.target);
      abruptArgs[1] = record.target;
    } else if (record.type === "return" || record.type === "throw") {
      if (record.value) {
        t.assertExpression(record.value);
        abruptArgs[1] = record.value;
      }
    }

    this.emit(t.returnStatement(t.callExpression(this.contextProperty("abrupt"), abruptArgs)));
  };

  function isValidCompletion(record) {
    var type = record.type;

    if (type === "normal") {
      return !hasOwn.call(record, "target");
    }

    if (type === "break" || type === "continue") {
      return !hasOwn.call(record, "value") && t.isLiteral(record.target);
    }

    if (type === "return" || type === "throw") {
      return hasOwn.call(record, "value") && !hasOwn.call(record, "target");
    }

    return false;
  }

  // Not all offsets into emitter.listing are potential jump targets. For
  // example, execution typically falls into the beginning of a try block
  // without jumping directly there. This method returns the current offset
  // without marking it, so that a switch case will not necessarily be
  // generated for this offset (I say "not necessarily" because the same
  // location might end up being marked in the process of emitting other
  // statements). There's no logical harm in marking such locations as jump
  // targets, but minimizing the number of switch cases keeps the generated
  // code shorter.
  Ep.getUnmarkedCurrentLoc = function () {
    return t.numericLiteral(this.listing.length);
  };

  // The context.prev property takes the value of context.next whenever we
  // evaluate the switch statement discriminant, which is generally good
  // enough for tracking the last location we jumped to, but sometimes
  // context.prev needs to be more precise, such as when we fall
  // successfully out of a try block and into a finally block without
  // jumping. This method exists to update context.prev to the freshest
  // available location. If we were implementing a full interpreter, we
  // would know the location of the current instruction with complete
  // precision at all times, but we don't have that luxury here, as it would
  // be costly and verbose to set context.prev before every statement.
  Ep.updateContextPrevLoc = function (loc) {
    if (loc) {
      t.assertLiteral(loc);

      if (loc.value === -1) {
        // If an uninitialized location literal was passed in, set its value
        // to the current this.listing.length.
        loc.value = this.listing.length;
      } else {
        // Otherwise assert that the location matches the current offset.
        _assert2.default.strictEqual(loc.value, this.listing.length);
      }
    } else {
      loc = this.getUnmarkedCurrentLoc();
    }

    // Make sure context.prev is up to date in case we fell into this try
    // statement without jumping to it. TODO Consider avoiding this
    // assignment when we know control must have jumped here.
    this.emitAssign(this.contextProperty("prev"), loc);
  };

  Ep.explodeExpression = function (path, ignoreResult) {
    var expr = path.node;
    if (expr) {
      t.assertExpression(expr);
    } else {
      return expr;
    }

    var self = this;
    var result = void 0; // Used optionally by several cases below.
    var after = void 0;

    function finish(expr) {
      t.assertExpression(expr);
      if (ignoreResult) {
        self.emit(expr);
      } else {
        return expr;
      }
    }

    // If the expression does not contain a leap, then we either emit the
    // expression as a standalone statement or return it whole.
    if (!meta.containsLeap(expr)) {
      return finish(expr);
    }

    // If any child contains a leap (such as a yield or labeled continue or
    // break statement), then any sibling subexpressions will almost
    // certainly have to be exploded in order to maintain the order of their
    // side effects relative to the leaping child(ren).
    var hasLeapingChildren = meta.containsLeap.onlyChildren(expr);

    // In order to save the rest of explodeExpression from a combinatorial
    // trainwreck of special cases, explodeViaTempVar is responsible for
    // deciding when a subexpression needs to be "exploded," which is my
    // very technical term for emitting the subexpression as an assignment
    // to a temporary variable and the substituting the temporary variable
    // for the original subexpression. Think of exploded view diagrams, not
    // Michael Bay movies. The point of exploding subexpressions is to
    // control the precise order in which the generated code realizes the
    // side effects of those subexpressions.
    function explodeViaTempVar(tempVar, childPath, ignoreChildResult) {
      _assert2.default.ok(!ignoreChildResult || !tempVar, "Ignoring the result of a child expression but forcing it to " + "be assigned to a temporary variable?");

      var result = self.explodeExpression(childPath, ignoreChildResult);

      if (ignoreChildResult) {
        // Side effects already emitted above.

      } else if (tempVar || hasLeapingChildren && !t.isLiteral(result)) {
        // If tempVar was provided, then the result will always be assigned
        // to it, even if the result does not otherwise need to be assigned
        // to a temporary variable.  When no tempVar is provided, we have
        // the flexibility to decide whether a temporary variable is really
        // necessary.  Unfortunately, in general, a temporary variable is
        // required whenever any child contains a yield expression, since it
        // is difficult to prove (at all, let alone efficiently) whether
        // this result would evaluate to the same value before and after the
        // yield (see #206).  One narrow case where we can prove it doesn't
        // matter (and thus we do not need a temporary variable) is when the
        // result in question is a Literal value.
        result = self.emitAssign(tempVar || self.makeTempVar(), result);
      }
      return result;
    }

    // If ignoreResult is true, then we must take full responsibility for
    // emitting the expression with all its side effects, and we should not
    // return a result.

    switch (expr.type) {
      case "MemberExpression":
        return finish(t.memberExpression(self.explodeExpression(path.get("object")), expr.computed ? explodeViaTempVar(null, path.get("property")) : expr.property, expr.computed));

      case "CallExpression":
        var calleePath = path.get("callee");
        var argsPath = path.get("arguments");

        var newCallee = void 0;
        var newArgs = [];

        var hasLeapingArgs = false;
        argsPath.forEach(function (argPath) {
          hasLeapingArgs = hasLeapingArgs || meta.containsLeap(argPath.node);
        });

        if (t.isMemberExpression(calleePath.node)) {
          if (hasLeapingArgs) {
            // If the arguments of the CallExpression contained any yield
            // expressions, then we need to be sure to evaluate the callee
            // before evaluating the arguments, but if the callee was a member
            // expression, then we must be careful that the object of the
            // member expression still gets bound to `this` for the call.

            var newObject = explodeViaTempVar(
            // Assign the exploded callee.object expression to a temporary
            // variable so that we can use it twice without reevaluating it.
            self.makeTempVar(), calleePath.get("object"));

            var newProperty = calleePath.node.computed ? explodeViaTempVar(null, calleePath.get("property")) : calleePath.node.property;

            newArgs.unshift(newObject);

            newCallee = t.memberExpression(t.memberExpression(newObject, newProperty, calleePath.node.computed), t.identifier("call"), false);
          } else {
            newCallee = self.explodeExpression(calleePath);
          }
        } else {
          newCallee = explodeViaTempVar(null, calleePath);

          if (t.isMemberExpression(newCallee)) {
            // If the callee was not previously a MemberExpression, then the
            // CallExpression was "unqualified," meaning its `this` object
            // should be the global object. If the exploded expression has
            // become a MemberExpression (e.g. a context property, probably a
            // temporary variable), then we need to force it to be unqualified
            // by using the (0, object.property)(...) trick; otherwise, it
            // will receive the object of the MemberExpression as its `this`
            // object.
            newCallee = t.sequenceExpression([t.numericLiteral(0), newCallee]);
          }
        }

        argsPath.forEach(function (argPath) {
          newArgs.push(explodeViaTempVar(null, argPath));
        });

        return finish(t.callExpression(newCallee, newArgs));

      case "NewExpression":
        return finish(t.newExpression(explodeViaTempVar(null, path.get("callee")), path.get("arguments").map(function (argPath) {
          return explodeViaTempVar(null, argPath);
        })));

      case "ObjectExpression":
        return finish(t.objectExpression(path.get("properties").map(function (propPath) {
          if (propPath.isObjectProperty()) {
            return t.objectProperty(propPath.node.key, explodeViaTempVar(null, propPath.get("value")), propPath.node.computed);
          } else {
            return propPath.node;
          }
        })));

      case "ArrayExpression":
        return finish(t.arrayExpression(path.get("elements").map(function (elemPath) {
          return explodeViaTempVar(null, elemPath);
        })));

      case "SequenceExpression":
        var lastIndex = expr.expressions.length - 1;

        path.get("expressions").forEach(function (exprPath) {
          if (exprPath.key === lastIndex) {
            result = self.explodeExpression(exprPath, ignoreResult);
          } else {
            self.explodeExpression(exprPath, true);
          }
        });

        return result;

      case "LogicalExpression":
        after = loc();

        if (!ignoreResult) {
          result = self.makeTempVar();
        }

        var left = explodeViaTempVar(result, path.get("left"));

        if (expr.operator === "&&") {
          self.jumpIfNot(left, after);
        } else {
          _assert2.default.strictEqual(expr.operator, "||");
          self.jumpIf(left, after);
        }

        explodeViaTempVar(result, path.get("right"), ignoreResult);

        self.mark(after);

        return result;

      case "ConditionalExpression":
        var elseLoc = loc();
        after = loc();
        var test = self.explodeExpression(path.get("test"));

        self.jumpIfNot(test, elseLoc);

        if (!ignoreResult) {
          result = self.makeTempVar();
        }

        explodeViaTempVar(result, path.get("consequent"), ignoreResult);
        self.jump(after);

        self.mark(elseLoc);
        explodeViaTempVar(result, path.get("alternate"), ignoreResult);

        self.mark(after);

        return result;

      case "UnaryExpression":
        return finish(t.unaryExpression(expr.operator,
        // Can't (and don't need to) break up the syntax of the argument.
        // Think about delete a[b].
        self.explodeExpression(path.get("argument")), !!expr.prefix));

      case "BinaryExpression":
        return finish(t.binaryExpression(expr.operator, explodeViaTempVar(null, path.get("left")), explodeViaTempVar(null, path.get("right"))));

      case "AssignmentExpression":
        return finish(t.assignmentExpression(expr.operator, self.explodeExpression(path.get("left")), self.explodeExpression(path.get("right"))));

      case "UpdateExpression":
        return finish(t.updateExpression(expr.operator, self.explodeExpression(path.get("argument")), expr.prefix));

      case "YieldExpression":
        after = loc();
        var arg = expr.argument && self.explodeExpression(path.get("argument"));

        if (arg && expr.delegate) {
          var _result = self.makeTempVar();

          self.emit(t.returnStatement(t.callExpression(self.contextProperty("delegateYield"), [arg, t.stringLiteral(_result.property.name), after])));

          self.mark(after);

          return _result;
        }

        self.emitAssign(self.contextProperty("next"), after);
        self.emit(t.returnStatement(arg || null));
        self.mark(after);

        return self.contextProperty("sent");

      default:
        throw new Error("unknown Expression of type " + (0, _stringify2.default)(expr.type));
    }
  };
});
$__System.registerDynamic("1ae", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.default = replaceShorthandObjectMethod;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  // this function converts a shorthand object generator method into a normal
  // (non-shorthand) object property which is a generator function expression. for
  // example, this:
  //
  //  var foo = {
  //    *bar(baz) { return 5; }
  //  }
  //
  // should be replaced with:
  //
  //  var foo = {
  //    bar: function*(baz) { return 5; }
  //  }
  //
  // to do this, it clones the parameter array and the body of the object generator
  // method into a new FunctionExpression.
  //
  // this method can be passed any Function AST node path, and it will return
  // either:
  //   a) the path that was passed in (iff the path did not need to be replaced) or
  //   b) the path of the new FunctionExpression that was created as a replacement
  //     (iff the path did need to be replaced)
  //
  // In either case, though, the caller can count on the fact that the return value
  // is a Function AST node path.
  //
  // If this function is called with an AST node path that is not a Function (or with an
  // argument that isn't an AST node path), it will throw an error.
  function replaceShorthandObjectMethod(path) {
    if (!path.node || !t.isFunction(path.node)) {
      throw new Error("replaceShorthandObjectMethod can only be called on Function AST node paths.");
    }

    // this function only replaces shorthand object methods (called ObjectMethod
    // in Babel-speak).
    if (!t.isObjectMethod(path.node)) {
      return path;
    }

    // this function only replaces generators.
    if (!path.node.generator) {
      return path;
    }

    var parameters = path.node.params.map(function (param) {
      return t.cloneDeep(param);
    });

    var functionExpression = t.functionExpression(null, // id
    parameters, // params
    t.cloneDeep(path.node.body), // body
    path.node.generator, path.node.async);

    path.replaceWith(t.objectProperty(t.cloneDeep(path.node.key), // key
    functionExpression, //value
    path.node.computed, // computed
    false // shorthand
    ));

    // path now refers to the ObjectProperty AST node path, but we want to return a
    // Function AST node path for the function expression we created. we know that
    // the FunctionExpression we just created is the value of the ObjectProperty,
    // so return the "value" path off of this path.
    return path.get("value");
  }
});
$__System.registerDynamic('1af', ['1b0', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('1b0');
  module.exports = $__require('39').Object.getOwnPropertySymbols;
});
$__System.registerDynamic("1b1", ["1af"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("1af"), __esModule: true };
});
$__System.registerDynamic('1b2', ['cb', '39', '194', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // most Object methods by ES6 should accept primitives
  var $export = $__require('cb'),
      core = $__require('39'),
      fails = $__require('194');
  module.exports = function (KEY, exec) {
    var fn = (core.Object || {})[KEY] || Object[KEY],
        exp = {};
    exp[KEY] = exec(fn);
    $export($export.S + $export.F * fails(function () {
      fn(1);
    }), 'Object', exp);
  };
});
$__System.registerDynamic('1b3', ['192', '18f', '1b2', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 19.1.2.14 Object.keys(O)
  var toObject = $__require('192'),
      $keys = $__require('18f');

  $__require('1b2')('keys', function () {
    return function keys(it) {
      return $keys(toObject(it));
    };
  });
});
$__System.registerDynamic('1b4', ['1b3', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('1b3');
  module.exports = $__require('39').Object.keys;
});
$__System.registerDynamic("15", ["1b4"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("1b4"), __esModule: true };
});
$__System.registerDynamic('1b5', ['cb', '16d', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var $export = $__require('cb');
  // 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
  $export($export.S, 'Object', { create: $__require('16d') });
});
$__System.registerDynamic('1b6', ['1b5', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('1b5');
  var $Object = $__require('39').Object;
  module.exports = function create(P, D) {
    return $Object.create(P, D);
  };
});
$__System.registerDynamic("d9", ["1b6"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("1b6"), __esModule: true };
});
$__System.registerDynamic("1b7", ["d9", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _create = $__require("d9");

  var _create2 = _interopRequireDefault(_create);

  exports.getBindingIdentifiers = getBindingIdentifiers;
  exports.getOuterBindingIdentifiers = getOuterBindingIdentifiers;

  var _index = $__require("11");

  var t = _interopRequireWildcard(_index);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function getBindingIdentifiers(node, duplicates, outerOnly) {
    var search = [].concat(node);
    var ids = (0, _create2.default)(null);

    while (search.length) {
      var id = search.shift();
      if (!id) continue;

      var keys = t.getBindingIdentifiers.keys[id.type];

      if (t.isIdentifier(id)) {
        if (duplicates) {
          var _ids = ids[id.name] = ids[id.name] || [];
          _ids.push(id);
        } else {
          ids[id.name] = id;
        }
        continue;
      }

      if (t.isExportDeclaration(id)) {
        if (t.isDeclaration(id.declaration)) {
          search.push(id.declaration);
        }
        continue;
      }

      if (outerOnly) {
        if (t.isFunctionDeclaration(id)) {
          search.push(id.id);
          continue;
        }

        if (t.isFunctionExpression(id)) {
          continue;
        }
      }

      if (keys) {
        for (var i = 0; i < keys.length; i++) {
          var key = keys[i];
          if (id[key]) {
            search = search.concat(id[key]);
          }
        }
      }
    }

    return ids;
  }

  getBindingIdentifiers.keys = {
    DeclareClass: ["id"],
    DeclareFunction: ["id"],
    DeclareModule: ["id"],
    DeclareVariable: ["id"],
    InterfaceDeclaration: ["id"],
    TypeAlias: ["id"],

    CatchClause: ["param"],
    LabeledStatement: ["label"],
    UnaryExpression: ["argument"],
    AssignmentExpression: ["left"],

    ImportSpecifier: ["local"],
    ImportNamespaceSpecifier: ["local"],
    ImportDefaultSpecifier: ["local"],
    ImportDeclaration: ["specifiers"],

    ExportSpecifier: ["exported"],
    ExportNamespaceSpecifier: ["exported"],
    ExportDefaultSpecifier: ["exported"],

    FunctionDeclaration: ["id", "params"],
    FunctionExpression: ["id", "params"],

    ClassDeclaration: ["id"],
    ClassExpression: ["id"],

    RestElement: ["argument"],
    UpdateExpression: ["argument"],

    RestProperty: ["argument"],
    ObjectProperty: ["value"],

    AssignmentPattern: ["left"],
    ArrayPattern: ["elements"],
    ObjectPattern: ["properties"],

    VariableDeclaration: ["declarations"],
    VariableDeclarator: ["id"]
  };

  function getOuterBindingIdentifiers(node, duplicates) {
    return getBindingIdentifiers(node, duplicates, true);
  }
});
$__System.registerDynamic('1b8', [], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    /*
      Copyright (C) 2013 Yusuke Suzuki <utatane.tea@gmail.com>
    
      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions are met:
    
        * Redistributions of source code must retain the above copyright
          notice, this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above copyright
          notice, this list of conditions and the following disclaimer in the
          documentation and/or other materials provided with the distribution.
    
      THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS'
      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
      DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
      (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
      LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
      ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
      THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    */

    (function () {
        'use strict';

        function isExpression(node) {
            if (node == null) {
                return false;
            }
            switch (node.type) {
                case 'ArrayExpression':
                case 'AssignmentExpression':
                case 'BinaryExpression':
                case 'CallExpression':
                case 'ConditionalExpression':
                case 'FunctionExpression':
                case 'Identifier':
                case 'Literal':
                case 'LogicalExpression':
                case 'MemberExpression':
                case 'NewExpression':
                case 'ObjectExpression':
                case 'SequenceExpression':
                case 'ThisExpression':
                case 'UnaryExpression':
                case 'UpdateExpression':
                    return true;
            }
            return false;
        }

        function isIterationStatement(node) {
            if (node == null) {
                return false;
            }
            switch (node.type) {
                case 'DoWhileStatement':
                case 'ForInStatement':
                case 'ForStatement':
                case 'WhileStatement':
                    return true;
            }
            return false;
        }

        function isStatement(node) {
            if (node == null) {
                return false;
            }
            switch (node.type) {
                case 'BlockStatement':
                case 'BreakStatement':
                case 'ContinueStatement':
                case 'DebuggerStatement':
                case 'DoWhileStatement':
                case 'EmptyStatement':
                case 'ExpressionStatement':
                case 'ForInStatement':
                case 'ForStatement':
                case 'IfStatement':
                case 'LabeledStatement':
                case 'ReturnStatement':
                case 'SwitchStatement':
                case 'ThrowStatement':
                case 'TryStatement':
                case 'VariableDeclaration':
                case 'WhileStatement':
                case 'WithStatement':
                    return true;
            }
            return false;
        }

        function isSourceElement(node) {
            return isStatement(node) || node != null && node.type === 'FunctionDeclaration';
        }

        function trailingStatement(node) {
            switch (node.type) {
                case 'IfStatement':
                    if (node.alternate != null) {
                        return node.alternate;
                    }
                    return node.consequent;

                case 'LabeledStatement':
                case 'ForStatement':
                case 'ForInStatement':
                case 'WhileStatement':
                case 'WithStatement':
                    return node.body;
            }
            return null;
        }

        function isProblematicIfStatement(node) {
            var current;

            if (node.type !== 'IfStatement') {
                return false;
            }
            if (node.alternate == null) {
                return false;
            }
            current = node.consequent;
            do {
                if (current.type === 'IfStatement') {
                    if (current.alternate == null) {
                        return true;
                    }
                }
                current = trailingStatement(current);
            } while (current);

            return false;
        }

        module.exports = {
            isExpression: isExpression,
            isStatement: isStatement,
            isIterationStatement: isIterationStatement,
            isSourceElement: isSourceElement,
            isProblematicIfStatement: isProblematicIfStatement,

            trailingStatement: trailingStatement
        };
    })();
    /* vim: set sw=4 ts=4 et tw=80 : */
});
$__System.registerDynamic('1b9', [], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    /*
      Copyright (C) 2013-2014 Yusuke Suzuki <utatane.tea@gmail.com>
      Copyright (C) 2014 Ivan Nikulin <ifaaan@gmail.com>
    
      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions are met:
    
        * Redistributions of source code must retain the above copyright
          notice, this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above copyright
          notice, this list of conditions and the following disclaimer in the
          documentation and/or other materials provided with the distribution.
    
      THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
      DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
      (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
      LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
      ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
      THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    */

    (function () {
        'use strict';

        var ES6Regex, ES5Regex, NON_ASCII_WHITESPACES, IDENTIFIER_START, IDENTIFIER_PART, ch;

        // See `tools/generate-identifier-regex.js`.
        ES5Regex = {
            // ECMAScript 5.1/Unicode v7.0.0 NonAsciiIdentifierStart:
            NonAsciiIdentifierStart: /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B2\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA7AD\uA7B0\uA7B1\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB5F\uAB64\uAB65\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]/,
            // ECMAScript 5.1/Unicode v7.0.0 NonAsciiIdentifierPart:
            NonAsciiIdentifierPart: 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        };

        ES6Regex = {
            // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierStart:
            NonAsciiIdentifierStart: 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            // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierPart:
            NonAsciiIdentifierPart: /[\xAA\xB5\xB7\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u08A0-\u08B2\u08E4-\u0963\u0966-\u096F\u0971-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C00-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58\u0C59\u0C60-\u0C63\u0C66-\u0C6F\u0C81-\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D01-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D57\u0D60-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1369-\u1371\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19DA\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1AB0-\u1ABD\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1CD0-\u1CD2\u1CD4-\u1CF6\u1CF8\u1CF9\u1D00-\u1DF5\u1DFC-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200C\u200D\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2118-\u211D\u2124\u2126\u2128\u212A-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA69D\uA69F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA7AD\uA7B0\uA7B1\uA7F7-\uA827\uA840-\uA873\uA880-\uA8C4\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uA9E0-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB5F\uAB64\uAB65\uABC0-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE2D\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF30-\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00-\uDE03\uDE05\uDE06\uDE0C-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48]|\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDD0-\uDDDA\uDE00-\uDE11\uDE13-\uDE37\uDEB0-\uDEEA\uDEF0-\uDEF9\uDF01-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-\uDDC0\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-\uDEC9]|\uD806[\uDCA0-\uDCE9\uDCFF\uDEC0-\uDEF8]|\uD808[\uDC00-\uDF98]|\uD809[\uDC00-\uDC6E]|[\uD80C\uD840-\uD868\uD86A-\uD86C][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-\uDF7E\uDF8F-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB\uDFCE-\uDFFF]|\uD83A[\uDC00-\uDCC4\uDCD0-\uDCD6]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D]|\uD87E[\uDC00-\uDE1D]|\uDB40[\uDD00-\uDDEF]/
        };

        function isDecimalDigit(ch) {
            return 0x30 <= ch && ch <= 0x39; // 0..9
        }

        function isHexDigit(ch) {
            return 0x30 <= ch && ch <= 0x39 || // 0..9
            0x61 <= ch && ch <= 0x66 || // a..f
            0x41 <= ch && ch <= 0x46; // A..F
        }

        function isOctalDigit(ch) {
            return ch >= 0x30 && ch <= 0x37; // 0..7
        }

        // 7.2 White Space

        NON_ASCII_WHITESPACES = [0x1680, 0x180E, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF];

        function isWhiteSpace(ch) {
            return ch === 0x20 || ch === 0x09 || ch === 0x0B || ch === 0x0C || ch === 0xA0 || ch >= 0x1680 && NON_ASCII_WHITESPACES.indexOf(ch) >= 0;
        }

        // 7.3 Line Terminators

        function isLineTerminator(ch) {
            return ch === 0x0A || ch === 0x0D || ch === 0x2028 || ch === 0x2029;
        }

        // 7.6 Identifier Names and Identifiers

        function fromCodePoint(cp) {
            if (cp <= 0xFFFF) {
                return String.fromCharCode(cp);
            }
            var cu1 = String.fromCharCode(Math.floor((cp - 0x10000) / 0x400) + 0xD800);
            var cu2 = String.fromCharCode((cp - 0x10000) % 0x400 + 0xDC00);
            return cu1 + cu2;
        }

        IDENTIFIER_START = new Array(0x80);
        for (ch = 0; ch < 0x80; ++ch) {
            IDENTIFIER_START[ch] = ch >= 0x61 && ch <= 0x7A || // a..z
            ch >= 0x41 && ch <= 0x5A || // A..Z
            ch === 0x24 || ch === 0x5F; // $ (dollar) and _ (underscore)
        }

        IDENTIFIER_PART = new Array(0x80);
        for (ch = 0; ch < 0x80; ++ch) {
            IDENTIFIER_PART[ch] = ch >= 0x61 && ch <= 0x7A || // a..z
            ch >= 0x41 && ch <= 0x5A || // A..Z
            ch >= 0x30 && ch <= 0x39 || // 0..9
            ch === 0x24 || ch === 0x5F; // $ (dollar) and _ (underscore)
        }

        function isIdentifierStartES5(ch) {
            return ch < 0x80 ? IDENTIFIER_START[ch] : ES5Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch));
        }

        function isIdentifierPartES5(ch) {
            return ch < 0x80 ? IDENTIFIER_PART[ch] : ES5Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch));
        }

        function isIdentifierStartES6(ch) {
            return ch < 0x80 ? IDENTIFIER_START[ch] : ES6Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch));
        }

        function isIdentifierPartES6(ch) {
            return ch < 0x80 ? IDENTIFIER_PART[ch] : ES6Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch));
        }

        module.exports = {
            isDecimalDigit: isDecimalDigit,
            isHexDigit: isHexDigit,
            isOctalDigit: isOctalDigit,
            isWhiteSpace: isWhiteSpace,
            isLineTerminator: isLineTerminator,
            isIdentifierStartES5: isIdentifierStartES5,
            isIdentifierPartES5: isIdentifierPartES5,
            isIdentifierStartES6: isIdentifierStartES6,
            isIdentifierPartES6: isIdentifierPartES6
        };
    })();
    /* vim: set sw=4 ts=4 et tw=80 : */
});
$__System.registerDynamic('1ba', ['1b9'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    /*
      Copyright (C) 2013 Yusuke Suzuki <utatane.tea@gmail.com>
    
      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions are met:
    
        * Redistributions of source code must retain the above copyright
          notice, this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above copyright
          notice, this list of conditions and the following disclaimer in the
          documentation and/or other materials provided with the distribution.
    
      THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
      DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
      (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
      LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
      ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
      THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    */

    (function () {
        'use strict';

        var code = $__require('1b9');

        function isStrictModeReservedWordES6(id) {
            switch (id) {
                case 'implements':
                case 'interface':
                case 'package':
                case 'private':
                case 'protected':
                case 'public':
                case 'static':
                case 'let':
                    return true;
                default:
                    return false;
            }
        }

        function isKeywordES5(id, strict) {
            // yield should not be treated as keyword under non-strict mode.
            if (!strict && id === 'yield') {
                return false;
            }
            return isKeywordES6(id, strict);
        }

        function isKeywordES6(id, strict) {
            if (strict && isStrictModeReservedWordES6(id)) {
                return true;
            }

            switch (id.length) {
                case 2:
                    return id === 'if' || id === 'in' || id === 'do';
                case 3:
                    return id === 'var' || id === 'for' || id === 'new' || id === 'try';
                case 4:
                    return id === 'this' || id === 'else' || id === 'case' || id === 'void' || id === 'with' || id === 'enum';
                case 5:
                    return id === 'while' || id === 'break' || id === 'catch' || id === 'throw' || id === 'const' || id === 'yield' || id === 'class' || id === 'super';
                case 6:
                    return id === 'return' || id === 'typeof' || id === 'delete' || id === 'switch' || id === 'export' || id === 'import';
                case 7:
                    return id === 'default' || id === 'finally' || id === 'extends';
                case 8:
                    return id === 'function' || id === 'continue' || id === 'debugger';
                case 10:
                    return id === 'instanceof';
                default:
                    return false;
            }
        }

        function isReservedWordES5(id, strict) {
            return id === 'null' || id === 'true' || id === 'false' || isKeywordES5(id, strict);
        }

        function isReservedWordES6(id, strict) {
            return id === 'null' || id === 'true' || id === 'false' || isKeywordES6(id, strict);
        }

        function isRestrictedWord(id) {
            return id === 'eval' || id === 'arguments';
        }

        function isIdentifierNameES5(id) {
            var i, iz, ch;

            if (id.length === 0) {
                return false;
            }

            ch = id.charCodeAt(0);
            if (!code.isIdentifierStartES5(ch)) {
                return false;
            }

            for (i = 1, iz = id.length; i < iz; ++i) {
                ch = id.charCodeAt(i);
                if (!code.isIdentifierPartES5(ch)) {
                    return false;
                }
            }
            return true;
        }

        function decodeUtf16(lead, trail) {
            return (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000;
        }

        function isIdentifierNameES6(id) {
            var i, iz, ch, lowCh, check;

            if (id.length === 0) {
                return false;
            }

            check = code.isIdentifierStartES6;
            for (i = 0, iz = id.length; i < iz; ++i) {
                ch = id.charCodeAt(i);
                if (0xD800 <= ch && ch <= 0xDBFF) {
                    ++i;
                    if (i >= iz) {
                        return false;
                    }
                    lowCh = id.charCodeAt(i);
                    if (!(0xDC00 <= lowCh && lowCh <= 0xDFFF)) {
                        return false;
                    }
                    ch = decodeUtf16(ch, lowCh);
                }
                if (!check(ch)) {
                    return false;
                }
                check = code.isIdentifierPartES6;
            }
            return true;
        }

        function isIdentifierES5(id, strict) {
            return isIdentifierNameES5(id) && !isReservedWordES5(id, strict);
        }

        function isIdentifierES6(id, strict) {
            return isIdentifierNameES6(id) && !isReservedWordES6(id, strict);
        }

        module.exports = {
            isKeywordES5: isKeywordES5,
            isKeywordES6: isKeywordES6,
            isReservedWordES5: isReservedWordES5,
            isReservedWordES6: isReservedWordES6,
            isRestrictedWord: isRestrictedWord,
            isIdentifierNameES5: isIdentifierNameES5,
            isIdentifierNameES6: isIdentifierNameES6,
            isIdentifierES5: isIdentifierES5,
            isIdentifierES6: isIdentifierES6
        };
    })();
    /* vim: set sw=4 ts=4 et tw=80 : */
});
$__System.registerDynamic('104', ['1b8', '1b9', '1ba'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /*
    Copyright (C) 2013 Yusuke Suzuki <utatane.tea@gmail.com>
  
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are met:
  
      * Redistributions of source code must retain the above copyright
        notice, this list of conditions and the following disclaimer.
      * Redistributions in binary form must reproduce the above copyright
        notice, this list of conditions and the following disclaimer in the
        documentation and/or other materials provided with the distribution.
  
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

  (function () {
    'use strict';

    exports.ast = $__require('1b8');
    exports.code = $__require('1b9');
    exports.keyword = $__require('1ba');
  })();
  /* vim: set sw=4 ts=4 et tw=80 : */
});
$__System.registerDynamic("1bb", ["15", "32", "17", "1b7", "104", "11", "1bc"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _keys = $__require("15");

  var _keys2 = _interopRequireDefault(_keys);

  var _typeof2 = $__require("32");

  var _typeof3 = _interopRequireDefault(_typeof2);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.isBinding = isBinding;
  exports.isReferenced = isReferenced;
  exports.isValidIdentifier = isValidIdentifier;
  exports.isLet = isLet;
  exports.isBlockScoped = isBlockScoped;
  exports.isVar = isVar;
  exports.isSpecifierDefault = isSpecifierDefault;
  exports.isScope = isScope;
  exports.isImmutable = isImmutable;
  exports.isNodesEquivalent = isNodesEquivalent;

  var _retrievers = $__require("1b7");

  var _esutils = $__require("104");

  var _esutils2 = _interopRequireDefault(_esutils);

  var _index = $__require("11");

  var t = _interopRequireWildcard(_index);

  var _constants = $__require("1bc");

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function isBinding(node, parent) {
    var keys = _retrievers.getBindingIdentifiers.keys[parent.type];
    if (keys) {
      for (var i = 0; i < keys.length; i++) {
        var key = keys[i];
        var val = parent[key];
        if (Array.isArray(val)) {
          if (val.indexOf(node) >= 0) return true;
        } else {
          if (val === node) return true;
        }
      }
    }

    return false;
  }

  function isReferenced(node, parent) {
    switch (parent.type) {
      case "BindExpression":
        return parent.object === node || parent.callee === node;

      case "MemberExpression":
      case "JSXMemberExpression":
        if (parent.property === node && parent.computed) {
          return true;
        } else if (parent.object === node) {
          return true;
        } else {
          return false;
        }

      case "MetaProperty":
        return false;

      case "ObjectProperty":
        if (parent.key === node) {
          return parent.computed;
        }

      case "VariableDeclarator":
        return parent.id !== node;

      case "ArrowFunctionExpression":
      case "FunctionDeclaration":
      case "FunctionExpression":
        for (var _iterator = parent.params, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
          var _ref;

          if (_isArray) {
            if (_i >= _iterator.length) break;
            _ref = _iterator[_i++];
          } else {
            _i = _iterator.next();
            if (_i.done) break;
            _ref = _i.value;
          }

          var param = _ref;

          if (param === node) return false;
        }

        return parent.id !== node;

      case "ExportSpecifier":
        if (parent.source) {
          return false;
        } else {
          return parent.local === node;
        }

      case "ExportNamespaceSpecifier":
      case "ExportDefaultSpecifier":
        return false;

      case "JSXAttribute":
        return parent.name !== node;

      case "ClassProperty":
        if (parent.key === node) {
          return parent.computed;
        } else {
          return parent.value === node;
        }

      case "ImportDefaultSpecifier":
      case "ImportNamespaceSpecifier":
      case "ImportSpecifier":
        return false;

      case "ClassDeclaration":
      case "ClassExpression":
        return parent.id !== node;

      case "ClassMethod":
      case "ObjectMethod":
        return parent.key === node && parent.computed;

      case "LabeledStatement":
        return false;

      case "CatchClause":
        return parent.param !== node;

      case "RestElement":
        return false;

      case "AssignmentExpression":
        return parent.right === node;

      case "AssignmentPattern":
        return parent.right === node;

      case "ObjectPattern":
      case "ArrayPattern":
        return false;
    }

    return true;
  }

  function isValidIdentifier(name) {
    if (typeof name !== "string" || _esutils2.default.keyword.isReservedWordES6(name, true)) {
      return false;
    } else if (name === "await") {
      return false;
    } else {
      return _esutils2.default.keyword.isIdentifierNameES6(name);
    }
  }

  function isLet(node) {
    return t.isVariableDeclaration(node) && (node.kind !== "var" || node[_constants.BLOCK_SCOPED_SYMBOL]);
  }

  function isBlockScoped(node) {
    return t.isFunctionDeclaration(node) || t.isClassDeclaration(node) || t.isLet(node);
  }

  function isVar(node) {
    return t.isVariableDeclaration(node, { kind: "var" }) && !node[_constants.BLOCK_SCOPED_SYMBOL];
  }

  function isSpecifierDefault(specifier) {
    return t.isImportDefaultSpecifier(specifier) || t.isIdentifier(specifier.imported || specifier.exported, { name: "default" });
  }

  function isScope(node, parent) {
    if (t.isBlockStatement(node) && t.isFunction(parent, { body: node })) {
      return false;
    }

    return t.isScopable(node);
  }

  function isImmutable(node) {
    if (t.isType(node.type, "Immutable")) return true;

    if (t.isIdentifier(node)) {
      if (node.name === "undefined") {
        return true;
      } else {
        return false;
      }
    }

    return false;
  }

  function isNodesEquivalent(a, b) {
    if ((typeof a === "undefined" ? "undefined" : (0, _typeof3.default)(a)) !== "object" || (typeof a === "undefined" ? "undefined" : (0, _typeof3.default)(a)) !== "object" || a == null || b == null) {
      return a === b;
    }

    if (a.type !== b.type) {
      return false;
    }

    var fields = (0, _keys2.default)(t.NODE_FIELDS[a.type] || a.type);

    for (var _iterator2 = fields, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
      var _ref2;

      if (_isArray2) {
        if (_i2 >= _iterator2.length) break;
        _ref2 = _iterator2[_i2++];
      } else {
        _i2 = _iterator2.next();
        if (_i2.done) break;
        _ref2 = _i2.value;
      }

      var field = _ref2;

      if ((0, _typeof3.default)(a[field]) !== (0, _typeof3.default)(b[field])) {
        return false;
      }

      if (Array.isArray(a[field])) {
        if (!Array.isArray(b[field])) {
          return false;
        }
        if (a[field].length !== b[field].length) {
          return false;
        }

        for (var i = 0; i < a[field].length; i++) {
          if (!isNodesEquivalent(a[field][i], b[field][i])) {
            return false;
          }
        }
        continue;
      }

      if (!isNodesEquivalent(a[field], b[field])) {
        return false;
      }
    }

    return true;
  }
});
$__System.registerDynamic('1bd', ['cb', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 20.1.2.6 Number.MAX_SAFE_INTEGER
  var $export = $__require('cb');

  $export($export.S, 'Number', { MAX_SAFE_INTEGER: 0x1fffffffffffff });
});
$__System.registerDynamic('1be', ['1bd', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('1bd');
  module.exports = 0x1fffffffffffff;
});
$__System.registerDynamic("1bf", ["1be"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("1be"), __esModule: true };
});
$__System.registerDynamic('c4', ['18a', '1c0', '7f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseGetTag = $__require('18a'),
      getPrototype = $__require('1c0'),
      isObjectLike = $__require('7f');

  /** `Object#toString` result references. */
  var objectTag = '[object Object]';

  /** Used for built-in method references. */
  var funcProto = Function.prototype,
      objectProto = Object.prototype;

  /** Used to resolve the decompiled source of functions. */
  var funcToString = funcProto.toString;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /** Used to infer the `Object` constructor. */
  var objectCtorString = funcToString.call(Object);

  /**
   * Checks if `value` is a plain object, that is, an object created by the
   * `Object` constructor or one with a `[[Prototype]]` of `null`.
   *
   * @static
   * @memberOf _
   * @since 0.8.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
   * @example
   *
   * function Foo() {
   *   this.a = 1;
   * }
   *
   * _.isPlainObject(new Foo);
   * // => false
   *
   * _.isPlainObject([1, 2, 3]);
   * // => false
   *
   * _.isPlainObject({ 'x': 0, 'y': 0 });
   * // => true
   *
   * _.isPlainObject(Object.create(null));
   * // => true
   */
  function isPlainObject(value) {
    if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
      return false;
    }
    var proto = getPrototype(value);
    if (proto === null) {
      return true;
    }
    var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
    return typeof Ctor == 'function' && Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString;
  }

  module.exports = isPlainObject;
});
$__System.registerDynamic('1c1', ['18a', '7f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseGetTag = $__require('18a'),
      isObjectLike = $__require('7f');

  /** `Object#toString` result references. */
  var regexpTag = '[object RegExp]';

  /**
   * The base implementation of `_.isRegExp` without Node.js optimizations.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
   */
  function baseIsRegExp(value) {
    return isObjectLike(value) && baseGetTag(value) == regexpTag;
  }

  module.exports = baseIsRegExp;
});
$__System.registerDynamic('ab', ['1c1', '97', '1c2'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseIsRegExp = $__require('1c1'),
      baseUnary = $__require('97'),
      nodeUtil = $__require('1c2');

  /* Node.js helper references. */
  var nodeIsRegExp = nodeUtil && nodeUtil.isRegExp;

  /**
   * Checks if `value` is classified as a `RegExp` object.
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
   * @example
   *
   * _.isRegExp(/abc/);
   * // => true
   *
   * _.isRegExp('/abc/');
   * // => false
   */
  var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;

  module.exports = isRegExp;
});
$__System.registerDynamic("1c3", ["1bf", "60", "17", "c4", "ab", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _maxSafeInteger = $__require("1bf");

  var _maxSafeInteger2 = _interopRequireDefault(_maxSafeInteger);

  var _stringify = $__require("60");

  var _stringify2 = _interopRequireDefault(_stringify);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  exports.toComputedKey = toComputedKey;
  exports.toSequenceExpression = toSequenceExpression;
  exports.toKeyAlias = toKeyAlias;
  exports.toIdentifier = toIdentifier;
  exports.toBindingIdentifierName = toBindingIdentifierName;
  exports.toStatement = toStatement;
  exports.toExpression = toExpression;
  exports.toBlock = toBlock;
  exports.valueToNode = valueToNode;

  var _isPlainObject = $__require("c4");

  var _isPlainObject2 = _interopRequireDefault(_isPlainObject);

  var _isRegExp = $__require("ab");

  var _isRegExp2 = _interopRequireDefault(_isRegExp);

  var _index = $__require("11");

  var t = _interopRequireWildcard(_index);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function toComputedKey(node) {
    var key = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : node.key || node.property;

    if (!node.computed) {
      if (t.isIdentifier(key)) key = t.stringLiteral(key.name);
    }
    return key;
  }

  function toSequenceExpression(nodes, scope) {
    if (!nodes || !nodes.length) return;

    var declars = [];
    var bailed = false;

    var result = convert(nodes);
    if (bailed) return;

    for (var i = 0; i < declars.length; i++) {
      scope.push(declars[i]);
    }

    return result;

    function convert(nodes) {
      var ensureLastUndefined = false;
      var exprs = [];

      for (var _iterator = nodes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var node = _ref;

        if (t.isExpression(node)) {
          exprs.push(node);
        } else if (t.isExpressionStatement(node)) {
          exprs.push(node.expression);
        } else if (t.isVariableDeclaration(node)) {
          if (node.kind !== "var") return bailed = true;

          for (var _iterator2 = node.declarations, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
            var _ref2;

            if (_isArray2) {
              if (_i2 >= _iterator2.length) break;
              _ref2 = _iterator2[_i2++];
            } else {
              _i2 = _iterator2.next();
              if (_i2.done) break;
              _ref2 = _i2.value;
            }

            var declar = _ref2;

            var bindings = t.getBindingIdentifiers(declar);
            for (var key in bindings) {
              declars.push({
                kind: node.kind,
                id: bindings[key]
              });
            }

            if (declar.init) {
              exprs.push(t.assignmentExpression("=", declar.id, declar.init));
            }
          }

          ensureLastUndefined = true;
          continue;
        } else if (t.isIfStatement(node)) {
          var consequent = node.consequent ? convert([node.consequent]) : scope.buildUndefinedNode();
          var alternate = node.alternate ? convert([node.alternate]) : scope.buildUndefinedNode();
          if (!consequent || !alternate) return bailed = true;

          exprs.push(t.conditionalExpression(node.test, consequent, alternate));
        } else if (t.isBlockStatement(node)) {
          exprs.push(convert(node.body));
        } else if (t.isEmptyStatement(node)) {
          ensureLastUndefined = true;
          continue;
        } else {
          return bailed = true;
        }

        ensureLastUndefined = false;
      }

      if (ensureLastUndefined || exprs.length === 0) {
        exprs.push(scope.buildUndefinedNode());
      }

      if (exprs.length === 1) {
        return exprs[0];
      } else {
        return t.sequenceExpression(exprs);
      }
    }
  }

  function toKeyAlias(node) {
    var key = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : node.key;

    var alias = void 0;

    if (node.kind === "method") {
      return toKeyAlias.increment() + "";
    } else if (t.isIdentifier(key)) {
      alias = key.name;
    } else if (t.isStringLiteral(key)) {
      alias = (0, _stringify2.default)(key.value);
    } else {
      alias = (0, _stringify2.default)(t.removePropertiesDeep(t.cloneDeep(key)));
    }

    if (node.computed) {
      alias = "[" + alias + "]";
    }

    if (node.static) {
      alias = "static:" + alias;
    }

    return alias;
  }

  toKeyAlias.uid = 0;

  toKeyAlias.increment = function () {
    if (toKeyAlias.uid >= _maxSafeInteger2.default) {
      return toKeyAlias.uid = 0;
    } else {
      return toKeyAlias.uid++;
    }
  };

  function toIdentifier(name) {
    name = name + "";

    name = name.replace(/[^a-zA-Z0-9$_]/g, "-");

    name = name.replace(/^[-0-9]+/, "");

    name = name.replace(/[-\s]+(.)?/g, function (match, c) {
      return c ? c.toUpperCase() : "";
    });

    if (!t.isValidIdentifier(name)) {
      name = "_" + name;
    }

    return name || "_";
  }

  function toBindingIdentifierName(name) {
    name = toIdentifier(name);
    if (name === "eval" || name === "arguments") name = "_" + name;
    return name;
  }

  function toStatement(node, ignore) {
    if (t.isStatement(node)) {
      return node;
    }

    var mustHaveId = false;
    var newType = void 0;

    if (t.isClass(node)) {
      mustHaveId = true;
      newType = "ClassDeclaration";
    } else if (t.isFunction(node)) {
      mustHaveId = true;
      newType = "FunctionDeclaration";
    } else if (t.isAssignmentExpression(node)) {
      return t.expressionStatement(node);
    }

    if (mustHaveId && !node.id) {
      newType = false;
    }

    if (!newType) {
      if (ignore) {
        return false;
      } else {
        throw new Error("cannot turn " + node.type + " to a statement");
      }
    }

    node.type = newType;

    return node;
  }

  function toExpression(node) {
    if (t.isExpressionStatement(node)) {
      node = node.expression;
    }

    if (t.isExpression(node)) {
      return node;
    }

    if (t.isClass(node)) {
      node.type = "ClassExpression";
    } else if (t.isFunction(node)) {
      node.type = "FunctionExpression";
    }

    if (!t.isExpression(node)) {
      throw new Error("cannot turn " + node.type + " to an expression");
    }

    return node;
  }

  function toBlock(node, parent) {
    if (t.isBlockStatement(node)) {
      return node;
    }

    if (t.isEmptyStatement(node)) {
      node = [];
    }

    if (!Array.isArray(node)) {
      if (!t.isStatement(node)) {
        if (t.isFunction(parent)) {
          node = t.returnStatement(node);
        } else {
          node = t.expressionStatement(node);
        }
      }

      node = [node];
    }

    return t.blockStatement(node);
  }

  function valueToNode(value) {
    if (value === undefined) {
      return t.identifier("undefined");
    }

    if (value === true || value === false) {
      return t.booleanLiteral(value);
    }

    if (value === null) {
      return t.nullLiteral();
    }

    if (typeof value === "string") {
      return t.stringLiteral(value);
    }

    if (typeof value === "number") {
      return t.numericLiteral(value);
    }

    if ((0, _isRegExp2.default)(value)) {
      var pattern = value.source;
      var flags = value.toString().match(/\/([a-z]+|)$/)[1];
      return t.regExpLiteral(pattern, flags);
    }

    if (Array.isArray(value)) {
      return t.arrayExpression(value.map(t.valueToNode));
    }

    if ((0, _isPlainObject2.default)(value)) {
      var props = [];
      for (var key in value) {
        var nodeKey = void 0;
        if (t.isValidIdentifier(key)) {
          nodeKey = t.identifier(key);
        } else {
          nodeKey = t.stringLiteral(key);
        }
        props.push(t.objectProperty(nodeKey, t.valueToNode(value[key])));
      }
      return t.objectExpression(props);
    }

    throw new Error("don't know how to turn this value into a node");
  }
});
$__System.registerDynamic("1c4", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.createUnionTypeAnnotation = createUnionTypeAnnotation;
  exports.removeTypeDuplicates = removeTypeDuplicates;
  exports.createTypeAnnotationBasedOnTypeof = createTypeAnnotationBasedOnTypeof;

  var _index = $__require("11");

  var t = _interopRequireWildcard(_index);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function createUnionTypeAnnotation(types) {
    var flattened = removeTypeDuplicates(types);

    if (flattened.length === 1) {
      return flattened[0];
    } else {
      return t.unionTypeAnnotation(flattened);
    }
  }

  function removeTypeDuplicates(nodes) {
    var generics = {};
    var bases = {};

    var typeGroups = [];

    var types = [];

    for (var i = 0; i < nodes.length; i++) {
      var node = nodes[i];
      if (!node) continue;

      if (types.indexOf(node) >= 0) {
        continue;
      }

      if (t.isAnyTypeAnnotation(node)) {
        return [node];
      }

      if (t.isFlowBaseAnnotation(node)) {
        bases[node.type] = node;
        continue;
      }

      if (t.isUnionTypeAnnotation(node)) {
        if (typeGroups.indexOf(node.types) < 0) {
          nodes = nodes.concat(node.types);
          typeGroups.push(node.types);
        }
        continue;
      }

      if (t.isGenericTypeAnnotation(node)) {
        var name = node.id.name;

        if (generics[name]) {
          var existing = generics[name];
          if (existing.typeParameters) {
            if (node.typeParameters) {
              existing.typeParameters.params = removeTypeDuplicates(existing.typeParameters.params.concat(node.typeParameters.params));
            }
          } else {
            existing = node.typeParameters;
          }
        } else {
          generics[name] = node;
        }

        continue;
      }

      types.push(node);
    }

    for (var type in bases) {
      types.push(bases[type]);
    }

    for (var _name in generics) {
      types.push(generics[_name]);
    }

    return types;
  }

  function createTypeAnnotationBasedOnTypeof(type) {
    if (type === "string") {
      return t.stringTypeAnnotation();
    } else if (type === "number") {
      return t.numberTypeAnnotation();
    } else if (type === "undefined") {
      return t.voidTypeAnnotation();
    } else if (type === "boolean") {
      return t.booleanTypeAnnotation();
    } else if (type === "function") {
      return t.genericTypeAnnotation(t.identifier("Function"));
    } else if (type === "object") {
      return t.genericTypeAnnotation(t.identifier("Object"));
    } else if (type === "symbol") {
      return t.genericTypeAnnotation(t.identifier("Symbol"));
    } else {
      throw new Error("Invalid typeof value");
    }
  }
});
$__System.registerDynamic("1c5", [], true, function ($__require, exports, module) {
	'use strict';

	var global = this || self,
	    GLOBAL = global;
	module.exports = function toFastproperties(o) {
		function Sub() {}
		Sub.prototype = o;
		var receiver = new Sub(); // create an instance
		function ic() {
			return typeof receiver.foo;
		} // perform access
		ic();
		ic();
		return o;
		eval("o" + o); // ensure no dead code elimination
	};
});
$__System.registerDynamic('1c6', ['1c7'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var ListCache = $__require('1c7');

  /**
   * Removes all key-value entries from the stack.
   *
   * @private
   * @name clear
   * @memberOf Stack
   */
  function stackClear() {
    this.__data__ = new ListCache();
    this.size = 0;
  }

  module.exports = stackClear;
});
$__System.registerDynamic('1c8', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Removes `key` and its value from the stack.
   *
   * @private
   * @name delete
   * @memberOf Stack
   * @param {string} key The key of the value to remove.
   * @returns {boolean} Returns `true` if the entry was removed, else `false`.
   */
  function stackDelete(key) {
    var data = this.__data__,
        result = data['delete'](key);

    this.size = data.size;
    return result;
  }

  module.exports = stackDelete;
});
$__System.registerDynamic("1c9", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Gets the stack value for `key`.
   *
   * @private
   * @name get
   * @memberOf Stack
   * @param {string} key The key of the value to get.
   * @returns {*} Returns the entry value.
   */
  function stackGet(key) {
    return this.__data__.get(key);
  }

  module.exports = stackGet;
});
$__System.registerDynamic("1ca", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Checks if a stack value for `key` exists.
   *
   * @private
   * @name has
   * @memberOf Stack
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function stackHas(key) {
    return this.__data__.has(key);
  }

  module.exports = stackHas;
});
$__System.registerDynamic('1cb', ['1c7', '1cc', '13e'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var ListCache = $__require('1c7'),
      Map = $__require('1cc'),
      MapCache = $__require('13e');

  /** Used as the size to enable large array optimizations. */
  var LARGE_ARRAY_SIZE = 200;

  /**
   * Sets the stack `key` to `value`.
   *
   * @private
   * @name set
   * @memberOf Stack
   * @param {string} key The key of the value to set.
   * @param {*} value The value to set.
   * @returns {Object} Returns the stack cache instance.
   */
  function stackSet(key, value) {
    var data = this.__data__;
    if (data instanceof ListCache) {
      var pairs = data.__data__;
      if (!Map || pairs.length < LARGE_ARRAY_SIZE - 1) {
        pairs.push([key, value]);
        this.size = ++data.size;
        return this;
      }
      data = this.__data__ = new MapCache(pairs);
    }
    data.set(key, value);
    this.size = data.size;
    return this;
  }

  module.exports = stackSet;
});
$__System.registerDynamic('6a', ['1c7', '1c6', '1c8', '1c9', '1ca', '1cb'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var ListCache = $__require('1c7'),
      stackClear = $__require('1c6'),
      stackDelete = $__require('1c8'),
      stackGet = $__require('1c9'),
      stackHas = $__require('1ca'),
      stackSet = $__require('1cb');

  /**
   * Creates a stack cache object to store key-value pairs.
   *
   * @private
   * @constructor
   * @param {Array} [entries] The key-value pairs to cache.
   */
  function Stack(entries) {
    var data = this.__data__ = new ListCache(entries);
    this.size = data.size;
  }

  // Add methods to `Stack`.
  Stack.prototype.clear = stackClear;
  Stack.prototype['delete'] = stackDelete;
  Stack.prototype.get = stackGet;
  Stack.prototype.has = stackHas;
  Stack.prototype.set = stackSet;

  module.exports = Stack;
});
$__System.registerDynamic("1cd", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * A specialized version of `_.forEach` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns `array`.
   */
  function arrayEach(array, iteratee) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (iteratee(array[index], index, array) === false) {
        break;
      }
    }
    return array;
  }

  module.exports = arrayEach;
});
$__System.registerDynamic('1ce', ['bc', '42'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var copyObject = $__require('bc'),
      keys = $__require('42');

  /**
   * The base implementation of `_.assign` without support for multiple sources
   * or `customizer` functions.
   *
   * @private
   * @param {Object} object The destination object.
   * @param {Object} source The source object.
   * @returns {Object} Returns `object`.
   */
  function baseAssign(object, source) {
    return object && copyObject(source, keys(source), object);
  }

  module.exports = baseAssign;
});
$__System.registerDynamic('1cf', ['bc', 'bd'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var copyObject = $__require('bc'),
      keysIn = $__require('bd');

  /**
   * The base implementation of `_.assignIn` without support for multiple sources
   * or `customizer` functions.
   *
   * @private
   * @param {Object} object The destination object.
   * @param {Object} source The source object.
   * @returns {Object} Returns `object`.
   */
  function baseAssignIn(object, source) {
    return object && copyObject(source, keysIn(source), object);
  }

  module.exports = baseAssignIn;
});
$__System.registerDynamic('bf', ['1d0'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var root = $__require('1d0');

  /** Detect free variable `exports`. */
  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;

  /** Detect free variable `module`. */
  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;

  /** Detect the popular CommonJS extension `module.exports`. */
  var moduleExports = freeModule && freeModule.exports === freeExports;

  /** Built-in value references. */
  var Buffer = moduleExports ? root.Buffer : undefined,
      allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined;

  /**
   * Creates a clone of  `buffer`.
   *
   * @private
   * @param {Buffer} buffer The buffer to clone.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @returns {Buffer} Returns the cloned buffer.
   */
  function cloneBuffer(buffer, isDeep) {
    if (isDeep) {
      return buffer.slice();
    }
    var length = buffer.length,
        result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);

    buffer.copy(result);
    return result;
  }

  module.exports = cloneBuffer;
});
$__System.registerDynamic("c1", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Copies the values of `source` to `array`.
   *
   * @private
   * @param {Array} source The array to copy values from.
   * @param {Array} [array=[]] The array to copy values to.
   * @returns {Array} Returns `array`.
   */
  function copyArray(source, array) {
    var index = -1,
        length = source.length;

    array || (array = Array(length));
    while (++index < length) {
      array[index] = source[index];
    }
    return array;
  }

  module.exports = copyArray;
});
$__System.registerDynamic('1d1', ['bc', '1d2'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var copyObject = $__require('bc'),
      getSymbols = $__require('1d2');

  /**
   * Copies own symbols of `source` to `object`.
   *
   * @private
   * @param {Object} source The object to copy symbols from.
   * @param {Object} [object={}] The object to copy symbols to.
   * @returns {Object} Returns `object`.
   */
  function copySymbols(source, object) {
    return copyObject(source, getSymbols(source), object);
  }

  module.exports = copySymbols;
});
$__System.registerDynamic('147', ['b9', '76'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseAssignValue = $__require('b9'),
      eq = $__require('76');

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Assigns `value` to `key` of `object` if the existing value is not equivalent
   * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
   * for equality comparisons.
   *
   * @private
   * @param {Object} object The object to modify.
   * @param {string} key The key of the property to assign.
   * @param {*} value The value to assign.
   */
  function assignValue(object, key, value) {
    var objValue = object[key];
    if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || value === undefined && !(key in object)) {
      baseAssignValue(object, key, value);
    }
  }

  module.exports = assignValue;
});
$__System.registerDynamic('151', ['1d3'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var getNative = $__require('1d3');

  var defineProperty = function () {
    try {
      var func = getNative(Object, 'defineProperty');
      func({}, '', {});
      return func;
    } catch (e) {}
  }();

  module.exports = defineProperty;
});
$__System.registerDynamic('b9', ['151'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var defineProperty = $__require('151');

  /**
   * The base implementation of `assignValue` and `assignMergeValue` without
   * value checks.
   *
   * @private
   * @param {Object} object The object to modify.
   * @param {string} key The key of the property to assign.
   * @param {*} value The value to assign.
   */
  function baseAssignValue(object, key, value) {
    if (key == '__proto__' && defineProperty) {
      defineProperty(object, key, {
        'configurable': true,
        'enumerable': true,
        'value': value,
        'writable': true
      });
    } else {
      object[key] = value;
    }
  }

  module.exports = baseAssignValue;
});
$__System.registerDynamic('bc', ['147', 'b9'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var assignValue = $__require('147'),
      baseAssignValue = $__require('b9');

  /**
   * Copies properties of `source` to `object`.
   *
   * @private
   * @param {Object} source The object to copy properties from.
   * @param {Array} props The property identifiers to copy.
   * @param {Object} [object={}] The object to copy properties to.
   * @param {Function} [customizer] The function to customize copied values.
   * @returns {Object} Returns `object`.
   */
  function copyObject(source, props, object, customizer) {
    var isNew = !object;
    object || (object = {});

    var index = -1,
        length = props.length;

    while (++index < length) {
      var key = props[index];

      var newValue = customizer ? customizer(object[key], source[key], key, object, source) : undefined;

      if (newValue === undefined) {
        newValue = source[key];
      }
      if (isNew) {
        baseAssignValue(object, key, newValue);
      } else {
        assignValue(object, key, newValue);
      }
    }
    return object;
  }

  module.exports = copyObject;
});
$__System.registerDynamic('1d4', ['bc', '1d5'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var copyObject = $__require('bc'),
      getSymbolsIn = $__require('1d5');

  /**
   * Copies own and inherited symbols of `source` to `object`.
   *
   * @private
   * @param {Object} source The object to copy symbols from.
   * @param {Object} [object={}] The object to copy symbols to.
   * @returns {Object} Returns `object`.
   */
  function copySymbolsIn(source, object) {
    return copyObject(source, getSymbolsIn(source), object);
  }

  module.exports = copySymbolsIn;
});
$__System.registerDynamic('7a', ['1d6', '1d2', '42'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseGetAllKeys = $__require('1d6'),
      getSymbols = $__require('1d2'),
      keys = $__require('42');

  /**
   * Creates an array of own enumerable property names and symbols of `object`.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of property names and symbols.
   */
  function getAllKeys(object) {
    return baseGetAllKeys(object, keys, getSymbols);
  }

  module.exports = getAllKeys;
});
$__System.registerDynamic('1d6', ['68', '50'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var arrayPush = $__require('68'),
      isArray = $__require('50');

  /**
   * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
   * `keysFunc` and `symbolsFunc` to get the enumerable property names and
   * symbols of `object`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Function} keysFunc The function to get the keys of `object`.
   * @param {Function} symbolsFunc The function to get the symbols of `object`.
   * @returns {Array} Returns the array of property names and symbols.
   */
  function baseGetAllKeys(object, keysFunc, symbolsFunc) {
    var result = keysFunc(object);
    return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
  }

  module.exports = baseGetAllKeys;
});
$__System.registerDynamic("68", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Appends the elements of `values` to `array`.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {Array} values The values to append.
   * @returns {Array} Returns `array`.
   */
  function arrayPush(array, values) {
    var index = -1,
        length = values.length,
        offset = array.length;

    while (++index < length) {
      array[offset + index] = values[index];
    }
    return array;
  }

  module.exports = arrayPush;
});
$__System.registerDynamic("1d7", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * A specialized version of `_.filter` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {Array} Returns the new filtered array.
   */
  function arrayFilter(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length,
        resIndex = 0,
        result = [];

    while (++index < length) {
      var value = array[index];
      if (predicate(value, index, array)) {
        result[resIndex++] = value;
      }
    }
    return result;
  }

  module.exports = arrayFilter;
});
$__System.registerDynamic('1d2', ['1d7', '1d8'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var arrayFilter = $__require('1d7'),
      stubArray = $__require('1d8');

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Built-in value references. */
  var propertyIsEnumerable = objectProto.propertyIsEnumerable;

  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeGetSymbols = Object.getOwnPropertySymbols;

  /**
   * Creates an array of the own enumerable symbols of `object`.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of symbols.
   */
  var getSymbols = !nativeGetSymbols ? stubArray : function (object) {
    if (object == null) {
      return [];
    }
    object = Object(object);
    return arrayFilter(nativeGetSymbols(object), function (symbol) {
      return propertyIsEnumerable.call(object, symbol);
    });
  };

  module.exports = getSymbols;
});
$__System.registerDynamic("1d8", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * This method returns a new empty array.
   *
   * @static
   * @memberOf _
   * @since 4.13.0
   * @category Util
   * @returns {Array} Returns the new empty array.
   * @example
   *
   * var arrays = _.times(2, _.stubArray);
   *
   * console.log(arrays);
   * // => [[], []]
   *
   * console.log(arrays[0] === arrays[1]);
   * // => false
   */
  function stubArray() {
    return [];
  }

  module.exports = stubArray;
});
$__System.registerDynamic('1d5', ['68', '1c0', '1d2', '1d8'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var arrayPush = $__require('68'),
      getPrototype = $__require('1c0'),
      getSymbols = $__require('1d2'),
      stubArray = $__require('1d8');

  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeGetSymbols = Object.getOwnPropertySymbols;

  /**
   * Creates an array of the own and inherited enumerable symbols of `object`.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of symbols.
   */
  var getSymbolsIn = !nativeGetSymbols ? stubArray : function (object) {
    var result = [];
    while (object) {
      arrayPush(result, getSymbols(object));
      object = getPrototype(object);
    }
    return result;
  };

  module.exports = getSymbolsIn;
});
$__System.registerDynamic("1d9", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * This function is like
   * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
   * except that it includes inherited enumerable properties.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of property names.
   */
  function nativeKeysIn(object) {
    var result = [];
    if (object != null) {
      for (var key in Object(object)) {
        result.push(key);
      }
    }
    return result;
  }

  module.exports = nativeKeysIn;
});
$__System.registerDynamic('1da', ['85', '148', '1d9'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isObject = $__require('85'),
      isPrototype = $__require('148'),
      nativeKeysIn = $__require('1d9');

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of property names.
   */
  function baseKeysIn(object) {
    if (!isObject(object)) {
      return nativeKeysIn(object);
    }
    var isProto = isPrototype(object),
        result = [];

    for (var key in object) {
      if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
        result.push(key);
      }
    }
    return result;
  }

  module.exports = baseKeysIn;
});
$__System.registerDynamic('bd', ['1db', '1da', '41'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var arrayLikeKeys = $__require('1db'),
      baseKeysIn = $__require('1da'),
      isArrayLike = $__require('41');

  /**
   * Creates an array of the own and inherited enumerable property names of `object`.
   *
   * **Note:** Non-object values are coerced to objects.
   *
   * @static
   * @memberOf _
   * @since 3.0.0
   * @category Object
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of property names.
   * @example
   *
   * function Foo() {
   *   this.a = 1;
   *   this.b = 2;
   * }
   *
   * Foo.prototype.c = 3;
   *
   * _.keysIn(new Foo);
   * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
   */
  function keysIn(object) {
    return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
  }

  module.exports = keysIn;
});
$__System.registerDynamic('1dc', ['1d6', '1d5', 'bd'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseGetAllKeys = $__require('1d6'),
      getSymbolsIn = $__require('1d5'),
      keysIn = $__require('bd');

  /**
   * Creates an array of own and inherited enumerable property names and
   * symbols of `object`.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of property names and symbols.
   */
  function getAllKeysIn(object) {
    return baseGetAllKeys(object, keysIn, getSymbolsIn);
  }

  module.exports = getAllKeysIn;
});
$__System.registerDynamic('1dd', ['1d3', '1d0'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var getNative = $__require('1d3'),
        root = $__require('1d0');

    /* Built-in method references that are verified to be native. */
    var DataView = getNative(root, 'DataView');

    module.exports = DataView;
});
$__System.registerDynamic('1de', ['1d3', '1d0'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var getNative = $__require('1d3'),
        root = $__require('1d0');

    /* Built-in method references that are verified to be native. */
    var Promise = getNative(root, 'Promise');

    module.exports = Promise;
});
$__System.registerDynamic('1df', ['1d3', '1d0'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var getNative = $__require('1d3'),
        root = $__require('1d0');

    /* Built-in method references that are verified to be native. */
    var WeakMap = getNative(root, 'WeakMap');

    module.exports = WeakMap;
});
$__System.registerDynamic('7c', ['1dd', '1cc', '1de', '1e0', '1df', '18a', '1e1'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var DataView = $__require('1dd'),
        Map = $__require('1cc'),
        Promise = $__require('1de'),
        Set = $__require('1e0'),
        WeakMap = $__require('1df'),
        baseGetTag = $__require('18a'),
        toSource = $__require('1e1');

    /** `Object#toString` result references. */
    var mapTag = '[object Map]',
        objectTag = '[object Object]',
        promiseTag = '[object Promise]',
        setTag = '[object Set]',
        weakMapTag = '[object WeakMap]';

    var dataViewTag = '[object DataView]';

    /** Used to detect maps, sets, and weakmaps. */
    var dataViewCtorString = toSource(DataView),
        mapCtorString = toSource(Map),
        promiseCtorString = toSource(Promise),
        setCtorString = toSource(Set),
        weakMapCtorString = toSource(WeakMap);

    /**
     * Gets the `toStringTag` of `value`.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the `toStringTag`.
     */
    var getTag = baseGetTag;

    // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
    if (DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag || Map && getTag(new Map()) != mapTag || Promise && getTag(Promise.resolve()) != promiseTag || Set && getTag(new Set()) != setTag || WeakMap && getTag(new WeakMap()) != weakMapTag) {
        getTag = function (value) {
            var result = baseGetTag(value),
                Ctor = result == objectTag ? value.constructor : undefined,
                ctorString = Ctor ? toSource(Ctor) : '';

            if (ctorString) {
                switch (ctorString) {
                    case dataViewCtorString:
                        return dataViewTag;
                    case mapCtorString:
                        return mapTag;
                    case promiseCtorString:
                        return promiseTag;
                    case setCtorString:
                        return setTag;
                    case weakMapCtorString:
                        return weakMapTag;
                }
            }
            return result;
        };
    }

    module.exports = getTag;
});
$__System.registerDynamic('1e2', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Initializes an array clone.
   *
   * @private
   * @param {Array} array The array to clone.
   * @returns {Array} Returns the initialized clone.
   */
  function initCloneArray(array) {
    var length = array.length,
        result = array.constructor(length);

    // Add properties assigned by `RegExp#exec`.
    if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
      result.index = array.index;
      result.input = array.input;
    }
    return result;
  }

  module.exports = initCloneArray;
});
$__System.registerDynamic('1e3', ['1e4'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var cloneArrayBuffer = $__require('1e4');

  /**
   * Creates a clone of `dataView`.
   *
   * @private
   * @param {Object} dataView The data view to clone.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @returns {Object} Returns the cloned data view.
   */
  function cloneDataView(dataView, isDeep) {
    var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
    return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
  }

  module.exports = cloneDataView;
});
$__System.registerDynamic("1e5", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Adds the key-value `pair` to `map`.
   *
   * @private
   * @param {Object} map The map to modify.
   * @param {Array} pair The key-value pair to add.
   * @returns {Object} Returns `map`.
   */
  function addMapEntry(map, pair) {
    // Don't return `map.set` because it's not chainable in IE 11.
    map.set(pair[0], pair[1]);
    return map;
  }

  module.exports = addMapEntry;
});
$__System.registerDynamic("77", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Converts `map` to its key-value pairs.
   *
   * @private
   * @param {Object} map The map to convert.
   * @returns {Array} Returns the key-value pairs.
   */
  function mapToArray(map) {
    var index = -1,
        result = Array(map.size);

    map.forEach(function (value, key) {
      result[++index] = [key, value];
    });
    return result;
  }

  module.exports = mapToArray;
});
$__System.registerDynamic('1e6', ['1e5', '1e7', '77'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var addMapEntry = $__require('1e5'),
      arrayReduce = $__require('1e7'),
      mapToArray = $__require('77');

  /** Used to compose bitmasks for cloning. */
  var CLONE_DEEP_FLAG = 1;

  /**
   * Creates a clone of `map`.
   *
   * @private
   * @param {Object} map The map to clone.
   * @param {Function} cloneFunc The function to clone values.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @returns {Object} Returns the cloned map.
   */
  function cloneMap(map, isDeep, cloneFunc) {
    var array = isDeep ? cloneFunc(mapToArray(map), CLONE_DEEP_FLAG) : mapToArray(map);
    return arrayReduce(array, addMapEntry, new map.constructor());
  }

  module.exports = cloneMap;
});
$__System.registerDynamic("1e8", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used to match `RegExp` flags from their coerced string values. */
  var reFlags = /\w*$/;

  /**
   * Creates a clone of `regexp`.
   *
   * @private
   * @param {Object} regexp The regexp to clone.
   * @returns {Object} Returns the cloned regexp.
   */
  function cloneRegExp(regexp) {
    var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
    result.lastIndex = regexp.lastIndex;
    return result;
  }

  module.exports = cloneRegExp;
});
$__System.registerDynamic("1e9", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Adds `value` to `set`.
   *
   * @private
   * @param {Object} set The set to modify.
   * @param {*} value The value to add.
   * @returns {Object} Returns `set`.
   */
  function addSetEntry(set, value) {
    // Don't return `set.add` because it's not chainable in IE 11.
    set.add(value);
    return set;
  }

  module.exports = addSetEntry;
});
$__System.registerDynamic("1e7", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * A specialized version of `_.reduce` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} [accumulator] The initial value.
   * @param {boolean} [initAccum] Specify using the first element of `array` as
   *  the initial value.
   * @returns {*} Returns the accumulated value.
   */
  function arrayReduce(array, iteratee, accumulator, initAccum) {
    var index = -1,
        length = array == null ? 0 : array.length;

    if (initAccum && length) {
      accumulator = array[++index];
    }
    while (++index < length) {
      accumulator = iteratee(accumulator, array[index], index, array);
    }
    return accumulator;
  }

  module.exports = arrayReduce;
});
$__System.registerDynamic('1ea', ['1e9', '1e7', '78'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var addSetEntry = $__require('1e9'),
      arrayReduce = $__require('1e7'),
      setToArray = $__require('78');

  /** Used to compose bitmasks for cloning. */
  var CLONE_DEEP_FLAG = 1;

  /**
   * Creates a clone of `set`.
   *
   * @private
   * @param {Object} set The set to clone.
   * @param {Function} cloneFunc The function to clone values.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @returns {Object} Returns the cloned set.
   */
  function cloneSet(set, isDeep, cloneFunc) {
    var array = isDeep ? cloneFunc(setToArray(set), CLONE_DEEP_FLAG) : setToArray(set);
    return arrayReduce(array, addSetEntry, new set.constructor());
  }

  module.exports = cloneSet;
});
$__System.registerDynamic('1eb', ['65'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Symbol = $__require('65');

  /** Used to convert symbols to primitives and strings. */
  var symbolProto = Symbol ? Symbol.prototype : undefined,
      symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;

  /**
   * Creates a clone of the `symbol` object.
   *
   * @private
   * @param {Object} symbol The symbol object to clone.
   * @returns {Object} Returns the cloned symbol object.
   */
  function cloneSymbol(symbol) {
    return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
  }

  module.exports = cloneSymbol;
});
$__System.registerDynamic('75', ['1d0'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var root = $__require('1d0');

  /** Built-in value references. */
  var Uint8Array = root.Uint8Array;

  module.exports = Uint8Array;
});
$__System.registerDynamic('1e4', ['75'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Uint8Array = $__require('75');

  /**
   * Creates a clone of `arrayBuffer`.
   *
   * @private
   * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
   * @returns {ArrayBuffer} Returns the cloned array buffer.
   */
  function cloneArrayBuffer(arrayBuffer) {
    var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
    new Uint8Array(result).set(new Uint8Array(arrayBuffer));
    return result;
  }

  module.exports = cloneArrayBuffer;
});
$__System.registerDynamic('c0', ['1e4'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var cloneArrayBuffer = $__require('1e4');

  /**
   * Creates a clone of `typedArray`.
   *
   * @private
   * @param {Object} typedArray The typed array to clone.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @returns {Object} Returns the cloned typed array.
   */
  function cloneTypedArray(typedArray, isDeep) {
    var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
    return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
  }

  module.exports = cloneTypedArray;
});
$__System.registerDynamic('1ec', ['1e4', '1e3', '1e6', '1e8', '1ea', '1eb', 'c0'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var cloneArrayBuffer = $__require('1e4'),
      cloneDataView = $__require('1e3'),
      cloneMap = $__require('1e6'),
      cloneRegExp = $__require('1e8'),
      cloneSet = $__require('1ea'),
      cloneSymbol = $__require('1eb'),
      cloneTypedArray = $__require('c0');

  /** `Object#toString` result references. */
  var boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      symbolTag = '[object Symbol]';

  var arrayBufferTag = '[object ArrayBuffer]',
      dataViewTag = '[object DataView]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /**
   * Initializes an object clone based on its `toStringTag`.
   *
   * **Note:** This function only supports cloning values with tags of
   * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
   *
   * @private
   * @param {Object} object The object to clone.
   * @param {string} tag The `toStringTag` of the object to clone.
   * @param {Function} cloneFunc The function to clone values.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @returns {Object} Returns the initialized clone.
   */
  function initCloneByTag(object, tag, cloneFunc, isDeep) {
    var Ctor = object.constructor;
    switch (tag) {
      case arrayBufferTag:
        return cloneArrayBuffer(object);

      case boolTag:
      case dateTag:
        return new Ctor(+object);

      case dataViewTag:
        return cloneDataView(object, isDeep);

      case float32Tag:case float64Tag:
      case int8Tag:case int16Tag:case int32Tag:
      case uint8Tag:case uint8ClampedTag:case uint16Tag:case uint32Tag:
        return cloneTypedArray(object, isDeep);

      case mapTag:
        return cloneMap(object, isDeep, cloneFunc);

      case numberTag:
      case stringTag:
        return new Ctor(object);

      case regexpTag:
        return cloneRegExp(object);

      case setTag:
        return cloneSet(object, isDeep, cloneFunc);

      case symbolTag:
        return cloneSymbol(object);
    }
  }

  module.exports = initCloneByTag;
});
$__System.registerDynamic('1ed', ['85'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isObject = $__require('85');

  /** Built-in value references. */
  var objectCreate = Object.create;

  /**
   * The base implementation of `_.create` without support for assigning
   * properties to the created object.
   *
   * @private
   * @param {Object} proto The object to inherit from.
   * @returns {Object} Returns the new object.
   */
  var baseCreate = function () {
    function object() {}
    return function (proto) {
      if (!isObject(proto)) {
        return {};
      }
      if (objectCreate) {
        return objectCreate(proto);
      }
      object.prototype = proto;
      var result = new object();
      object.prototype = undefined;
      return result;
    };
  }();

  module.exports = baseCreate;
});
$__System.registerDynamic('1c0', ['1ee'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var overArg = $__require('1ee');

  /** Built-in value references. */
  var getPrototype = overArg(Object.getPrototypeOf, Object);

  module.exports = getPrototype;
});
$__System.registerDynamic('c2', ['1ed', '1c0', '148'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var baseCreate = $__require('1ed'),
        getPrototype = $__require('1c0'),
        isPrototype = $__require('148');

    /**
     * Initializes an object clone.
     *
     * @private
     * @param {Object} object The object to clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneObject(object) {
        return typeof object.constructor == 'function' && !isPrototype(object) ? baseCreate(getPrototype(object)) : {};
    }

    module.exports = initCloneObject;
});
$__System.registerDynamic("1ef", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * The base implementation of `_.times` without support for iteratee shorthands
   * or max array length checks.
   *
   * @private
   * @param {number} n The number of times to invoke `iteratee`.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the array of results.
   */
  function baseTimes(n, iteratee) {
    var index = -1,
        result = Array(n);

    while (++index < n) {
      result[index] = iteratee(index);
    }
    return result;
  }

  module.exports = baseTimes;
});
$__System.registerDynamic('1f0', ['18a', '7f'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseGetTag = $__require('18a'),
      isObjectLike = $__require('7f');

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]';

  /**
   * The base implementation of `_.isArguments`.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is an `arguments` object,
   */
  function baseIsArguments(value) {
    return isObjectLike(value) && baseGetTag(value) == argsTag;
  }

  module.exports = baseIsArguments;
});
$__System.registerDynamic('66', ['1f0', '7f'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var baseIsArguments = $__require('1f0'),
        isObjectLike = $__require('7f');

    /** Used for built-in method references. */
    var objectProto = Object.prototype;

    /** Used to check objects for own properties. */
    var hasOwnProperty = objectProto.hasOwnProperty;

    /** Built-in value references. */
    var propertyIsEnumerable = objectProto.propertyIsEnumerable;

    /**
     * Checks if `value` is likely an `arguments` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
     *  else `false`.
     * @example
     *
     * _.isArguments(function() { return arguments; }());
     * // => true
     *
     * _.isArguments([1, 2, 3]);
     * // => false
     */
    var isArguments = baseIsArguments(function () {
        return arguments;
    }()) ? baseIsArguments : function (value) {
        return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');
    };

    module.exports = isArguments;
});
$__System.registerDynamic("50", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Checks if `value` is classified as an `Array` object.
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is an array, else `false`.
   * @example
   *
   * _.isArray([1, 2, 3]);
   * // => true
   *
   * _.isArray(document.body.children);
   * // => false
   *
   * _.isArray('abc');
   * // => false
   *
   * _.isArray(_.noop);
   * // => false
   */
  var isArray = Array.isArray;

  module.exports = isArray;
});
$__System.registerDynamic("1f1", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * This method returns `false`.
   *
   * @static
   * @memberOf _
   * @since 4.13.0
   * @category Util
   * @returns {boolean} Returns `false`.
   * @example
   *
   * _.times(2, _.stubFalse);
   * // => [false, false]
   */
  function stubFalse() {
    return false;
  }

  module.exports = stubFalse;
});
$__System.registerDynamic('7d', ['1d0', '1f1'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var root = $__require('1d0'),
      stubFalse = $__require('1f1');

  /** Detect free variable `exports`. */
  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;

  /** Detect free variable `module`. */
  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;

  /** Detect the popular CommonJS extension `module.exports`. */
  var moduleExports = freeModule && freeModule.exports === freeExports;

  /** Built-in value references. */
  var Buffer = moduleExports ? root.Buffer : undefined;

  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined;

  /**
   * Checks if `value` is a buffer.
   *
   * @static
   * @memberOf _
   * @since 4.3.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
   * @example
   *
   * _.isBuffer(new Buffer(2));
   * // => true
   *
   * _.isBuffer(new Uint8Array(2));
   * // => false
   */
  var isBuffer = nativeIsBuffer || stubFalse;

  module.exports = isBuffer;
});
$__System.registerDynamic('141', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used as references for various `Number` constants. */
  var MAX_SAFE_INTEGER = 9007199254740991;

  /** Used to detect unsigned integer values. */
  var reIsUint = /^(?:0|[1-9]\d*)$/;

  /**
   * Checks if `value` is a valid array-like index.
   *
   * @private
   * @param {*} value The value to check.
   * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
   * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
   */
  function isIndex(value, length) {
    length = length == null ? MAX_SAFE_INTEGER : length;
    return !!length && (typeof value == 'number' || reIsUint.test(value)) && value > -1 && value % 1 == 0 && value < length;
  }

  module.exports = isIndex;
});
$__System.registerDynamic('7f', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Checks if `value` is object-like. A value is object-like if it's not `null`
   * and has a `typeof` result of "object".
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
   * @example
   *
   * _.isObjectLike({});
   * // => true
   *
   * _.isObjectLike([1, 2, 3]);
   * // => true
   *
   * _.isObjectLike(_.noop);
   * // => false
   *
   * _.isObjectLike(null);
   * // => false
   */
  function isObjectLike(value) {
    return value != null && typeof value == 'object';
  }

  module.exports = isObjectLike;
});
$__System.registerDynamic('1f2', ['18a', '142', '7f'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var baseGetTag = $__require('18a'),
        isLength = $__require('142'),
        isObjectLike = $__require('7f');

    /** `Object#toString` result references. */
    var argsTag = '[object Arguments]',
        arrayTag = '[object Array]',
        boolTag = '[object Boolean]',
        dateTag = '[object Date]',
        errorTag = '[object Error]',
        funcTag = '[object Function]',
        mapTag = '[object Map]',
        numberTag = '[object Number]',
        objectTag = '[object Object]',
        regexpTag = '[object RegExp]',
        setTag = '[object Set]',
        stringTag = '[object String]',
        weakMapTag = '[object WeakMap]';

    var arrayBufferTag = '[object ArrayBuffer]',
        dataViewTag = '[object DataView]',
        float32Tag = '[object Float32Array]',
        float64Tag = '[object Float64Array]',
        int8Tag = '[object Int8Array]',
        int16Tag = '[object Int16Array]',
        int32Tag = '[object Int32Array]',
        uint8Tag = '[object Uint8Array]',
        uint8ClampedTag = '[object Uint8ClampedArray]',
        uint16Tag = '[object Uint16Array]',
        uint32Tag = '[object Uint32Array]';

    /** Used to identify `toStringTag` values of typed arrays. */
    var typedArrayTags = {};
    typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = typedArrayTags[uint32Tag] = true;
    typedArrayTags[argsTag] = typedArrayTags[arrayTag] = typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = typedArrayTags[errorTag] = typedArrayTags[funcTag] = typedArrayTags[mapTag] = typedArrayTags[numberTag] = typedArrayTags[objectTag] = typedArrayTags[regexpTag] = typedArrayTags[setTag] = typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;

    /**
     * The base implementation of `_.isTypedArray` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
     */
    function baseIsTypedArray(value) {
        return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
    }

    module.exports = baseIsTypedArray;
});
$__System.registerDynamic("97", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * The base implementation of `_.unary` without support for storing metadata.
   *
   * @private
   * @param {Function} func The function to cap arguments for.
   * @returns {Function} Returns the new capped function.
   */
  function baseUnary(func) {
    return function (value) {
      return func(value);
    };
  }

  module.exports = baseUnary;
});
$__System.registerDynamic('1c2', ['1f3'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var freeGlobal = $__require('1f3');

  /** Detect free variable `exports`. */
  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;

  /** Detect free variable `module`. */
  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;

  /** Detect the popular CommonJS extension `module.exports`. */
  var moduleExports = freeModule && freeModule.exports === freeExports;

  /** Detect free variable `process` from Node.js. */
  var freeProcess = moduleExports && freeGlobal.process;

  /** Used to access faster Node.js helpers. */
  var nodeUtil = function () {
    try {
      return freeProcess && freeProcess.binding && freeProcess.binding('util');
    } catch (e) {}
  }();

  module.exports = nodeUtil;
});
$__System.registerDynamic('7e', ['1f2', '97', '1c2'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseIsTypedArray = $__require('1f2'),
      baseUnary = $__require('97'),
      nodeUtil = $__require('1c2');

  /* Node.js helper references. */
  var nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;

  /**
   * Checks if `value` is classified as a typed array.
   *
   * @static
   * @memberOf _
   * @since 3.0.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
   * @example
   *
   * _.isTypedArray(new Uint8Array);
   * // => true
   *
   * _.isTypedArray([]);
   * // => false
   */
  var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;

  module.exports = isTypedArray;
});
$__System.registerDynamic('1db', ['1ef', '66', '50', '7d', '141', '7e'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseTimes = $__require('1ef'),
      isArguments = $__require('66'),
      isArray = $__require('50'),
      isBuffer = $__require('7d'),
      isIndex = $__require('141'),
      isTypedArray = $__require('7e');

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Creates an array of the enumerable property names of the array-like `value`.
   *
   * @private
   * @param {*} value The value to query.
   * @param {boolean} inherited Specify returning inherited property names.
   * @returns {Array} Returns the array of property names.
   */
  function arrayLikeKeys(value, inherited) {
    var isArr = isArray(value),
        isArg = !isArr && isArguments(value),
        isBuff = !isArr && !isArg && isBuffer(value),
        isType = !isArr && !isArg && !isBuff && isTypedArray(value),
        skipIndexes = isArr || isArg || isBuff || isType,
        result = skipIndexes ? baseTimes(value.length, String) : [],
        length = result.length;

    for (var key in value) {
      if ((inherited || hasOwnProperty.call(value, key)) && !(skipIndexes && (
      // Safari 9 has enumerable `arguments.length` in strict mode.
      key == 'length' ||
      // Node.js 0.10 has enumerable non-index properties on buffers.
      isBuff && (key == 'offset' || key == 'parent') ||
      // PhantomJS 2 has enumerable non-index properties on typed arrays.
      isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset') ||
      // Skip index properties.
      isIndex(key, length)))) {
        result.push(key);
      }
    }
    return result;
  }

  module.exports = arrayLikeKeys;
});
$__System.registerDynamic('148', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /**
   * Checks if `value` is likely a prototype object.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
   */
  function isPrototype(value) {
    var Ctor = value && value.constructor,
        proto = typeof Ctor == 'function' && Ctor.prototype || objectProto;

    return value === proto;
  }

  module.exports = isPrototype;
});
$__System.registerDynamic("1ee", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Creates a unary function that invokes `func` with its argument transformed.
   *
   * @private
   * @param {Function} func The function to wrap.
   * @param {Function} transform The argument transform.
   * @returns {Function} Returns the new function.
   */
  function overArg(func, transform) {
    return function (arg) {
      return func(transform(arg));
    };
  }

  module.exports = overArg;
});
$__System.registerDynamic('1f4', ['1ee'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var overArg = $__require('1ee');

  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeKeys = overArg(Object.keys, Object);

  module.exports = nativeKeys;
});
$__System.registerDynamic('1f5', ['148', '1f4'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isPrototype = $__require('148'),
      nativeKeys = $__require('1f4');

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of property names.
   */
  function baseKeys(object) {
    if (!isPrototype(object)) {
      return nativeKeys(object);
    }
    var result = [];
    for (var key in Object(object)) {
      if (hasOwnProperty.call(object, key) && key != 'constructor') {
        result.push(key);
      }
    }
    return result;
  }

  module.exports = baseKeys;
});
$__System.registerDynamic('142', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used as references for various `Number` constants. */
  var MAX_SAFE_INTEGER = 9007199254740991;

  /**
   * Checks if `value` is a valid array-like length.
   *
   * **Note:** This method is loosely based on
   * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
   * @example
   *
   * _.isLength(3);
   * // => true
   *
   * _.isLength(Number.MIN_VALUE);
   * // => false
   *
   * _.isLength(Infinity);
   * // => false
   *
   * _.isLength('3');
   * // => false
   */
  function isLength(value) {
    return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
  }

  module.exports = isLength;
});
$__System.registerDynamic('41', ['c3', '142'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isFunction = $__require('c3'),
      isLength = $__require('142');

  /**
   * Checks if `value` is array-like. A value is considered array-like if it's
   * not a function and has a `value.length` that's an integer greater than or
   * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
   * @example
   *
   * _.isArrayLike([1, 2, 3]);
   * // => true
   *
   * _.isArrayLike(document.body.children);
   * // => true
   *
   * _.isArrayLike('abc');
   * // => true
   *
   * _.isArrayLike(_.noop);
   * // => false
   */
  function isArrayLike(value) {
    return value != null && isLength(value.length) && !isFunction(value);
  }

  module.exports = isArrayLike;
});
$__System.registerDynamic('42', ['1db', '1f5', '41'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var arrayLikeKeys = $__require('1db'),
      baseKeys = $__require('1f5'),
      isArrayLike = $__require('41');

  /**
   * Creates an array of the own enumerable property names of `object`.
   *
   * **Note:** Non-object values are coerced to objects. See the
   * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
   * for more details.
   *
   * @static
   * @since 0.1.0
   * @memberOf _
   * @category Object
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of property names.
   * @example
   *
   * function Foo() {
   *   this.a = 1;
   *   this.b = 2;
   * }
   *
   * Foo.prototype.c = 3;
   *
   * _.keys(new Foo);
   * // => ['a', 'b'] (iteration order is not guaranteed)
   *
   * _.keys('hi');
   * // => ['0', '1']
   */
  function keys(object) {
    return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
  }

  module.exports = keys;
});
$__System.registerDynamic('b6', ['6a', '1cd', '147', '1ce', '1cf', 'bf', 'c1', '1d1', '1d4', '7a', '1dc', '7c', '1e2', '1ec', 'c2', '50', '7d', '85', '42'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Stack = $__require('6a'),
      arrayEach = $__require('1cd'),
      assignValue = $__require('147'),
      baseAssign = $__require('1ce'),
      baseAssignIn = $__require('1cf'),
      cloneBuffer = $__require('bf'),
      copyArray = $__require('c1'),
      copySymbols = $__require('1d1'),
      copySymbolsIn = $__require('1d4'),
      getAllKeys = $__require('7a'),
      getAllKeysIn = $__require('1dc'),
      getTag = $__require('7c'),
      initCloneArray = $__require('1e2'),
      initCloneByTag = $__require('1ec'),
      initCloneObject = $__require('c2'),
      isArray = $__require('50'),
      isBuffer = $__require('7d'),
      isObject = $__require('85'),
      keys = $__require('42');

  /** Used to compose bitmasks for cloning. */
  var CLONE_DEEP_FLAG = 1,
      CLONE_FLAT_FLAG = 2,
      CLONE_SYMBOLS_FLAG = 4;

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      errorTag = '[object Error]',
      funcTag = '[object Function]',
      genTag = '[object GeneratorFunction]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      objectTag = '[object Object]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      symbolTag = '[object Symbol]',
      weakMapTag = '[object WeakMap]';

  var arrayBufferTag = '[object ArrayBuffer]',
      dataViewTag = '[object DataView]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /** Used to identify `toStringTag` values supported by `_.clone`. */
  var cloneableTags = {};
  cloneableTags[argsTag] = cloneableTags[arrayTag] = cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = cloneableTags[boolTag] = cloneableTags[dateTag] = cloneableTags[float32Tag] = cloneableTags[float64Tag] = cloneableTags[int8Tag] = cloneableTags[int16Tag] = cloneableTags[int32Tag] = cloneableTags[mapTag] = cloneableTags[numberTag] = cloneableTags[objectTag] = cloneableTags[regexpTag] = cloneableTags[setTag] = cloneableTags[stringTag] = cloneableTags[symbolTag] = cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
  cloneableTags[errorTag] = cloneableTags[funcTag] = cloneableTags[weakMapTag] = false;

  /**
   * The base implementation of `_.clone` and `_.cloneDeep` which tracks
   * traversed objects.
   *
   * @private
   * @param {*} value The value to clone.
   * @param {boolean} bitmask The bitmask flags.
   *  1 - Deep clone
   *  2 - Flatten inherited properties
   *  4 - Clone symbols
   * @param {Function} [customizer] The function to customize cloning.
   * @param {string} [key] The key of `value`.
   * @param {Object} [object] The parent object of `value`.
   * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
   * @returns {*} Returns the cloned value.
   */
  function baseClone(value, bitmask, customizer, key, object, stack) {
    var result,
        isDeep = bitmask & CLONE_DEEP_FLAG,
        isFlat = bitmask & CLONE_FLAT_FLAG,
        isFull = bitmask & CLONE_SYMBOLS_FLAG;

    if (customizer) {
      result = object ? customizer(value, key, object, stack) : customizer(value);
    }
    if (result !== undefined) {
      return result;
    }
    if (!isObject(value)) {
      return value;
    }
    var isArr = isArray(value);
    if (isArr) {
      result = initCloneArray(value);
      if (!isDeep) {
        return copyArray(value, result);
      }
    } else {
      var tag = getTag(value),
          isFunc = tag == funcTag || tag == genTag;

      if (isBuffer(value)) {
        return cloneBuffer(value, isDeep);
      }
      if (tag == objectTag || tag == argsTag || isFunc && !object) {
        result = isFlat || isFunc ? {} : initCloneObject(value);
        if (!isDeep) {
          return isFlat ? copySymbolsIn(value, baseAssignIn(result, value)) : copySymbols(value, baseAssign(result, value));
        }
      } else {
        if (!cloneableTags[tag]) {
          return object ? value : {};
        }
        result = initCloneByTag(value, tag, baseClone, isDeep);
      }
    }
    // Check for circular references and return its corresponding clone.
    stack || (stack = new Stack());
    var stacked = stack.get(value);
    if (stacked) {
      return stacked;
    }
    stack.set(value, result);

    var keysFunc = isFull ? isFlat ? getAllKeysIn : getAllKeys : isFlat ? keysIn : keys;

    var props = isArr ? undefined : keysFunc(value);
    arrayEach(props || value, function (subValue, key) {
      if (props) {
        key = subValue;
        subValue = value[key];
      }
      // Recursively populate clone (susceptible to call stack limits).
      assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
    });
    return result;
  }

  module.exports = baseClone;
});
$__System.registerDynamic('d3', ['b6'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseClone = $__require('b6');

  /** Used to compose bitmasks for cloning. */
  var CLONE_SYMBOLS_FLAG = 4;

  /**
   * Creates a shallow clone of `value`.
   *
   * **Note:** This method is loosely based on the
   * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
   * and supports cloning arrays, array buffers, booleans, date objects, maps,
   * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
   * arrays. The own enumerable properties of `arguments` objects are cloned
   * as plain objects. An empty object is returned for uncloneable values such
   * as error objects, functions, DOM nodes, and WeakMaps.
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Lang
   * @param {*} value The value to clone.
   * @returns {*} Returns the cloned value.
   * @see _.cloneDeep
   * @example
   *
   * var objects = [{ 'a': 1 }, { 'b': 2 }];
   *
   * var shallow = _.clone(objects);
   * console.log(shallow[0] === objects[0]);
   * // => true
   */
  function clone(value) {
    return baseClone(value, CLONE_SYMBOLS_FLAG);
  }

  module.exports = clone;
});
$__System.registerDynamic('1f6', ['1f7'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var nativeCreate = $__require('1f7');

  /**
   * Removes all key-value entries from the hash.
   *
   * @private
   * @name clear
   * @memberOf Hash
   */
  function hashClear() {
    this.__data__ = nativeCreate ? nativeCreate(null) : {};
    this.size = 0;
  }

  module.exports = hashClear;
});
$__System.registerDynamic("1f8", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Removes `key` and its value from the hash.
   *
   * @private
   * @name delete
   * @memberOf Hash
   * @param {Object} hash The hash to modify.
   * @param {string} key The key of the value to remove.
   * @returns {boolean} Returns `true` if the entry was removed, else `false`.
   */
  function hashDelete(key) {
    var result = this.has(key) && delete this.__data__[key];
    this.size -= result ? 1 : 0;
    return result;
  }

  module.exports = hashDelete;
});
$__System.registerDynamic('1f9', ['1f7'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var nativeCreate = $__require('1f7');

  /** Used to stand-in for `undefined` hash values. */
  var HASH_UNDEFINED = '__lodash_hash_undefined__';

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Gets the hash value for `key`.
   *
   * @private
   * @name get
   * @memberOf Hash
   * @param {string} key The key of the value to get.
   * @returns {*} Returns the entry value.
   */
  function hashGet(key) {
    var data = this.__data__;
    if (nativeCreate) {
      var result = data[key];
      return result === HASH_UNDEFINED ? undefined : result;
    }
    return hasOwnProperty.call(data, key) ? data[key] : undefined;
  }

  module.exports = hashGet;
});
$__System.registerDynamic('1fa', ['1f7'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var nativeCreate = $__require('1f7');

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Checks if a hash value for `key` exists.
   *
   * @private
   * @name has
   * @memberOf Hash
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function hashHas(key) {
    var data = this.__data__;
    return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);
  }

  module.exports = hashHas;
});
$__System.registerDynamic('1f7', ['1d3'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var getNative = $__require('1d3');

  /* Built-in method references that are verified to be native. */
  var nativeCreate = getNative(Object, 'create');

  module.exports = nativeCreate;
});
$__System.registerDynamic('1fb', ['1f7'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var nativeCreate = $__require('1f7');

  /** Used to stand-in for `undefined` hash values. */
  var HASH_UNDEFINED = '__lodash_hash_undefined__';

  /**
   * Sets the hash `key` to `value`.
   *
   * @private
   * @name set
   * @memberOf Hash
   * @param {string} key The key of the value to set.
   * @param {*} value The value to set.
   * @returns {Object} Returns the hash instance.
   */
  function hashSet(key, value) {
    var data = this.__data__;
    this.size += this.has(key) ? 0 : 1;
    data[key] = nativeCreate && value === undefined ? HASH_UNDEFINED : value;
    return this;
  }

  module.exports = hashSet;
});
$__System.registerDynamic('1fc', ['1f6', '1f8', '1f9', '1fa', '1fb'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var hashClear = $__require('1f6'),
        hashDelete = $__require('1f8'),
        hashGet = $__require('1f9'),
        hashHas = $__require('1fa'),
        hashSet = $__require('1fb');

    /**
     * Creates a hash object.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function Hash(entries) {
        var index = -1,
            length = entries == null ? 0 : entries.length;

        this.clear();
        while (++index < length) {
            var entry = entries[index];
            this.set(entry[0], entry[1]);
        }
    }

    // Add methods to `Hash`.
    Hash.prototype.clear = hashClear;
    Hash.prototype['delete'] = hashDelete;
    Hash.prototype.get = hashGet;
    Hash.prototype.has = hashHas;
    Hash.prototype.set = hashSet;

    module.exports = Hash;
});
$__System.registerDynamic("1fd", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Removes all key-value entries from the list cache.
   *
   * @private
   * @name clear
   * @memberOf ListCache
   */
  function listCacheClear() {
    this.__data__ = [];
    this.size = 0;
  }

  module.exports = listCacheClear;
});
$__System.registerDynamic('1fe', ['1ff'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var assocIndexOf = $__require('1ff');

  /** Used for built-in method references. */
  var arrayProto = Array.prototype;

  /** Built-in value references. */
  var splice = arrayProto.splice;

  /**
   * Removes `key` and its value from the list cache.
   *
   * @private
   * @name delete
   * @memberOf ListCache
   * @param {string} key The key of the value to remove.
   * @returns {boolean} Returns `true` if the entry was removed, else `false`.
   */
  function listCacheDelete(key) {
    var data = this.__data__,
        index = assocIndexOf(data, key);

    if (index < 0) {
      return false;
    }
    var lastIndex = data.length - 1;
    if (index == lastIndex) {
      data.pop();
    } else {
      splice.call(data, index, 1);
    }
    --this.size;
    return true;
  }

  module.exports = listCacheDelete;
});
$__System.registerDynamic('200', ['1ff'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var assocIndexOf = $__require('1ff');

  /**
   * Gets the list cache value for `key`.
   *
   * @private
   * @name get
   * @memberOf ListCache
   * @param {string} key The key of the value to get.
   * @returns {*} Returns the entry value.
   */
  function listCacheGet(key) {
    var data = this.__data__,
        index = assocIndexOf(data, key);

    return index < 0 ? undefined : data[index][1];
  }

  module.exports = listCacheGet;
});
$__System.registerDynamic('201', ['1ff'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var assocIndexOf = $__require('1ff');

  /**
   * Checks if a list cache value for `key` exists.
   *
   * @private
   * @name has
   * @memberOf ListCache
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function listCacheHas(key) {
    return assocIndexOf(this.__data__, key) > -1;
  }

  module.exports = listCacheHas;
});
$__System.registerDynamic("76", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Performs a
   * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
   * comparison between two values to determine if they are equivalent.
   *
   * @static
   * @memberOf _
   * @since 4.0.0
   * @category Lang
   * @param {*} value The value to compare.
   * @param {*} other The other value to compare.
   * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
   * @example
   *
   * var object = { 'a': 1 };
   * var other = { 'a': 1 };
   *
   * _.eq(object, object);
   * // => true
   *
   * _.eq(object, other);
   * // => false
   *
   * _.eq('a', 'a');
   * // => true
   *
   * _.eq('a', Object('a'));
   * // => false
   *
   * _.eq(NaN, NaN);
   * // => true
   */
  function eq(value, other) {
    return value === other || value !== value && other !== other;
  }

  module.exports = eq;
});
$__System.registerDynamic('1ff', ['76'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var eq = $__require('76');

  /**
   * Gets the index at which the `key` is found in `array` of key-value pairs.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} key The key to search for.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function assocIndexOf(array, key) {
    var length = array.length;
    while (length--) {
      if (eq(array[length][0], key)) {
        return length;
      }
    }
    return -1;
  }

  module.exports = assocIndexOf;
});
$__System.registerDynamic('202', ['1ff'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var assocIndexOf = $__require('1ff');

  /**
   * Sets the list cache `key` to `value`.
   *
   * @private
   * @name set
   * @memberOf ListCache
   * @param {string} key The key of the value to set.
   * @param {*} value The value to set.
   * @returns {Object} Returns the list cache instance.
   */
  function listCacheSet(key, value) {
    var data = this.__data__,
        index = assocIndexOf(data, key);

    if (index < 0) {
      ++this.size;
      data.push([key, value]);
    } else {
      data[index][1] = value;
    }
    return this;
  }

  module.exports = listCacheSet;
});
$__System.registerDynamic('1c7', ['1fd', '1fe', '200', '201', '202'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var listCacheClear = $__require('1fd'),
        listCacheDelete = $__require('1fe'),
        listCacheGet = $__require('200'),
        listCacheHas = $__require('201'),
        listCacheSet = $__require('202');

    /**
     * Creates an list cache object.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function ListCache(entries) {
        var index = -1,
            length = entries == null ? 0 : entries.length;

        this.clear();
        while (++index < length) {
            var entry = entries[index];
            this.set(entry[0], entry[1]);
        }
    }

    // Add methods to `ListCache`.
    ListCache.prototype.clear = listCacheClear;
    ListCache.prototype['delete'] = listCacheDelete;
    ListCache.prototype.get = listCacheGet;
    ListCache.prototype.has = listCacheHas;
    ListCache.prototype.set = listCacheSet;

    module.exports = ListCache;
});
$__System.registerDynamic('1cc', ['1d3', '1d0'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var getNative = $__require('1d3'),
        root = $__require('1d0');

    /* Built-in method references that are verified to be native. */
    var Map = getNative(root, 'Map');

    module.exports = Map;
});
$__System.registerDynamic('203', ['1fc', '1c7', '1cc'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Hash = $__require('1fc'),
      ListCache = $__require('1c7'),
      Map = $__require('1cc');

  /**
   * Removes all key-value entries from the map.
   *
   * @private
   * @name clear
   * @memberOf MapCache
   */
  function mapCacheClear() {
    this.size = 0;
    this.__data__ = {
      'hash': new Hash(),
      'map': new (Map || ListCache)(),
      'string': new Hash()
    };
  }

  module.exports = mapCacheClear;
});
$__System.registerDynamic('204', ['205'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var getMapData = $__require('205');

  /**
   * Removes `key` and its value from the map.
   *
   * @private
   * @name delete
   * @memberOf MapCache
   * @param {string} key The key of the value to remove.
   * @returns {boolean} Returns `true` if the entry was removed, else `false`.
   */
  function mapCacheDelete(key) {
    var result = getMapData(this, key)['delete'](key);
    this.size -= result ? 1 : 0;
    return result;
  }

  module.exports = mapCacheDelete;
});
$__System.registerDynamic('206', ['205'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var getMapData = $__require('205');

  /**
   * Gets the map value for `key`.
   *
   * @private
   * @name get
   * @memberOf MapCache
   * @param {string} key The key of the value to get.
   * @returns {*} Returns the entry value.
   */
  function mapCacheGet(key) {
    return getMapData(this, key).get(key);
  }

  module.exports = mapCacheGet;
});
$__System.registerDynamic('207', ['205'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var getMapData = $__require('205');

  /**
   * Checks if a map value for `key` exists.
   *
   * @private
   * @name has
   * @memberOf MapCache
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function mapCacheHas(key) {
    return getMapData(this, key).has(key);
  }

  module.exports = mapCacheHas;
});
$__System.registerDynamic('208', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Checks if `value` is suitable for use as unique object key.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
   */
  function isKeyable(value) {
    var type = typeof value;
    return type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean' ? value !== '__proto__' : value === null;
  }

  module.exports = isKeyable;
});
$__System.registerDynamic('205', ['208'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isKeyable = $__require('208');

  /**
   * Gets the data for `map`.
   *
   * @private
   * @param {Object} map The map to query.
   * @param {string} key The reference key.
   * @returns {*} Returns the map data.
   */
  function getMapData(map, key) {
    var data = map.__data__;
    return isKeyable(key) ? data[typeof key == 'string' ? 'string' : 'hash'] : data.map;
  }

  module.exports = getMapData;
});
$__System.registerDynamic('209', ['205'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var getMapData = $__require('205');

  /**
   * Sets the map `key` to `value`.
   *
   * @private
   * @name set
   * @memberOf MapCache
   * @param {string} key The key of the value to set.
   * @param {*} value The value to set.
   * @returns {Object} Returns the map cache instance.
   */
  function mapCacheSet(key, value) {
    var data = getMapData(this, key),
        size = data.size;

    data.set(key, value);
    this.size += data.size == size ? 0 : 1;
    return this;
  }

  module.exports = mapCacheSet;
});
$__System.registerDynamic('13e', ['203', '204', '206', '207', '209'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var mapCacheClear = $__require('203'),
        mapCacheDelete = $__require('204'),
        mapCacheGet = $__require('206'),
        mapCacheHas = $__require('207'),
        mapCacheSet = $__require('209');

    /**
     * Creates a map cache object to store key-value pairs.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function MapCache(entries) {
        var index = -1,
            length = entries == null ? 0 : entries.length;

        this.clear();
        while (++index < length) {
            var entry = entries[index];
            this.set(entry[0], entry[1]);
        }
    }

    // Add methods to `MapCache`.
    MapCache.prototype.clear = mapCacheClear;
    MapCache.prototype['delete'] = mapCacheDelete;
    MapCache.prototype.get = mapCacheGet;
    MapCache.prototype.has = mapCacheHas;
    MapCache.prototype.set = mapCacheSet;

    module.exports = MapCache;
});
$__System.registerDynamic('20a', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used to stand-in for `undefined` hash values. */
  var HASH_UNDEFINED = '__lodash_hash_undefined__';

  /**
   * Adds `value` to the array cache.
   *
   * @private
   * @name add
   * @memberOf SetCache
   * @alias push
   * @param {*} value The value to cache.
   * @returns {Object} Returns the cache instance.
   */
  function setCacheAdd(value) {
    this.__data__.set(value, HASH_UNDEFINED);
    return this;
  }

  module.exports = setCacheAdd;
});
$__System.registerDynamic("20b", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Checks if `value` is in the array cache.
   *
   * @private
   * @name has
   * @memberOf SetCache
   * @param {*} value The value to search for.
   * @returns {number} Returns `true` if `value` is found, else `false`.
   */
  function setCacheHas(value) {
    return this.__data__.has(value);
  }

  module.exports = setCacheHas;
});
$__System.registerDynamic('72', ['13e', '20a', '20b'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var MapCache = $__require('13e'),
        setCacheAdd = $__require('20a'),
        setCacheHas = $__require('20b');

    /**
     *
     * Creates an array cache object to store unique values.
     *
     * @private
     * @constructor
     * @param {Array} [values] The values to cache.
     */
    function SetCache(values) {
        var index = -1,
            length = values == null ? 0 : values.length;

        this.__data__ = new MapCache();
        while (++index < length) {
            this.add(values[index]);
        }
    }

    // Add methods to `SetCache`.
    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
    SetCache.prototype.has = setCacheHas;

    module.exports = SetCache;
});
$__System.registerDynamic("3c", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * The base implementation of `_.findIndex` and `_.findLastIndex` without
   * support for iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {Function} predicate The function invoked per iteration.
   * @param {number} fromIndex The index to search from.
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseFindIndex(array, predicate, fromIndex, fromRight) {
    var length = array.length,
        index = fromIndex + (fromRight ? 1 : -1);

    while (fromRight ? index-- : ++index < length) {
      if (predicate(array[index], index, array)) {
        return index;
      }
    }
    return -1;
  }

  module.exports = baseFindIndex;
});
$__System.registerDynamic("20c", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * The base implementation of `_.isNaN` without support for number objects.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
   */
  function baseIsNaN(value) {
    return value !== value;
  }

  module.exports = baseIsNaN;
});
$__System.registerDynamic("20d", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * A specialized version of `_.indexOf` which performs strict equality
   * comparisons of values, i.e. `===`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function strictIndexOf(array, value, fromIndex) {
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (array[index] === value) {
        return index;
      }
    }
    return -1;
  }

  module.exports = strictIndexOf;
});
$__System.registerDynamic('12c', ['3c', '20c', '20d'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var baseFindIndex = $__require('3c'),
        baseIsNaN = $__require('20c'),
        strictIndexOf = $__require('20d');

    /**
     * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @param {number} fromIndex The index to search from.
     * @returns {number} Returns the index of the matched value, else `-1`.
     */
    function baseIndexOf(array, value, fromIndex) {
        return value === value ? strictIndexOf(array, value, fromIndex) : baseFindIndex(array, baseIsNaN, fromIndex);
    }

    module.exports = baseIndexOf;
});
$__System.registerDynamic('20e', ['12c'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseIndexOf = $__require('12c');

  /**
   * A specialized version of `_.includes` for arrays without support for
   * specifying an index to search from.
   *
   * @private
   * @param {Array} [array] The array to inspect.
   * @param {*} target The value to search for.
   * @returns {boolean} Returns `true` if `target` is found, else `false`.
   */
  function arrayIncludes(array, value) {
    var length = array == null ? 0 : array.length;
    return !!length && baseIndexOf(array, value, 0) > -1;
  }

  module.exports = arrayIncludes;
});
$__System.registerDynamic("20f", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * This function is like `arrayIncludes` except that it accepts a comparator.
   *
   * @private
   * @param {Array} [array] The array to inspect.
   * @param {*} target The value to search for.
   * @param {Function} comparator The comparator invoked per element.
   * @returns {boolean} Returns `true` if `target` is found, else `false`.
   */
  function arrayIncludesWith(array, value, comparator) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (comparator(value, array[index])) {
        return true;
      }
    }
    return false;
  }

  module.exports = arrayIncludesWith;
});
$__System.registerDynamic("73", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Checks if a `cache` value for `key` exists.
   *
   * @private
   * @param {Object} cache The cache to query.
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function cacheHas(cache, key) {
    return cache.has(key);
  }

  module.exports = cacheHas;
});
$__System.registerDynamic('65', ['1d0'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var root = $__require('1d0');

  /** Built-in value references. */
  var Symbol = root.Symbol;

  module.exports = Symbol;
});
$__System.registerDynamic('210', ['65'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Symbol = $__require('65');

  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /**
   * Used to resolve the
   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
   * of values.
   */
  var nativeObjectToString = objectProto.toString;

  /** Built-in value references. */
  var symToStringTag = Symbol ? Symbol.toStringTag : undefined;

  /**
   * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
   *
   * @private
   * @param {*} value The value to query.
   * @returns {string} Returns the raw `toStringTag`.
   */
  function getRawTag(value) {
    var isOwn = hasOwnProperty.call(value, symToStringTag),
        tag = value[symToStringTag];

    try {
      value[symToStringTag] = undefined;
      var unmasked = true;
    } catch (e) {}

    var result = nativeObjectToString.call(value);
    if (unmasked) {
      if (isOwn) {
        value[symToStringTag] = tag;
      } else {
        delete value[symToStringTag];
      }
    }
    return result;
  }

  module.exports = getRawTag;
});
$__System.registerDynamic("211", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used for built-in method references. */
  var objectProto = Object.prototype;

  /**
   * Used to resolve the
   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
   * of values.
   */
  var nativeObjectToString = objectProto.toString;

  /**
   * Converts `value` to a string using `Object.prototype.toString`.
   *
   * @private
   * @param {*} value The value to convert.
   * @returns {string} Returns the converted string.
   */
  function objectToString(value) {
    return nativeObjectToString.call(value);
  }

  module.exports = objectToString;
});
$__System.registerDynamic('18a', ['65', '210', '211'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var Symbol = $__require('65'),
        getRawTag = $__require('210'),
        objectToString = $__require('211');

    /** `Object#toString` result references. */
    var nullTag = '[object Null]',
        undefinedTag = '[object Undefined]';

    /** Built-in value references. */
    var symToStringTag = Symbol ? Symbol.toStringTag : undefined;

    /**
     * The base implementation of `getTag` without fallbacks for buggy environments.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the `toStringTag`.
     */
    function baseGetTag(value) {
        if (value == null) {
            return value === undefined ? undefinedTag : nullTag;
        }
        return symToStringTag && symToStringTag in Object(value) ? getRawTag(value) : objectToString(value);
    }

    module.exports = baseGetTag;
});
$__System.registerDynamic('c3', ['18a', '85'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var baseGetTag = $__require('18a'),
        isObject = $__require('85');

    /** `Object#toString` result references. */
    var asyncTag = '[object AsyncFunction]',
        funcTag = '[object Function]',
        genTag = '[object GeneratorFunction]',
        proxyTag = '[object Proxy]';

    /**
     * Checks if `value` is classified as a `Function` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a function, else `false`.
     * @example
     *
     * _.isFunction(_);
     * // => true
     *
     * _.isFunction(/abc/);
     * // => false
     */
    function isFunction(value) {
        if (!isObject(value)) {
            return false;
        }
        // The use of `Object#toString` avoids issues with the `typeof` operator
        // in Safari 9 which returns 'object' for typed arrays and other constructors.
        var tag = baseGetTag(value);
        return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
    }

    module.exports = isFunction;
});
$__System.registerDynamic('212', ['1d0'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var root = $__require('1d0');

  /** Used to detect overreaching core-js shims. */
  var coreJsData = root['__core-js_shared__'];

  module.exports = coreJsData;
});
$__System.registerDynamic('213', ['212'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var coreJsData = $__require('212');

  /** Used to detect methods masquerading as native. */
  var maskSrcKey = function () {
    var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
    return uid ? 'Symbol(src)_1.' + uid : '';
  }();

  /**
   * Checks if `func` has its source masked.
   *
   * @private
   * @param {Function} func The function to check.
   * @returns {boolean} Returns `true` if `func` is masked, else `false`.
   */
  function isMasked(func) {
    return !!maskSrcKey && maskSrcKey in func;
  }

  module.exports = isMasked;
});
$__System.registerDynamic('85', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Checks if `value` is the
   * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
   * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Lang
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is an object, else `false`.
   * @example
   *
   * _.isObject({});
   * // => true
   *
   * _.isObject([1, 2, 3]);
   * // => true
   *
   * _.isObject(_.noop);
   * // => true
   *
   * _.isObject(null);
   * // => false
   */
  function isObject(value) {
    var type = typeof value;
    return value != null && (type == 'object' || type == 'function');
  }

  module.exports = isObject;
});
$__System.registerDynamic('1e1', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Used for built-in method references. */
  var funcProto = Function.prototype;

  /** Used to resolve the decompiled source of functions. */
  var funcToString = funcProto.toString;

  /**
   * Converts `func` to its source code.
   *
   * @private
   * @param {Function} func The function to convert.
   * @returns {string} Returns the source code.
   */
  function toSource(func) {
    if (func != null) {
      try {
        return funcToString.call(func);
      } catch (e) {}
      try {
        return func + '';
      } catch (e) {}
    }
    return '';
  }

  module.exports = toSource;
});
$__System.registerDynamic('214', ['c3', '213', '85', '1e1'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var isFunction = $__require('c3'),
      isMasked = $__require('213'),
      isObject = $__require('85'),
      toSource = $__require('1e1');

  /**
   * Used to match `RegExp`
   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
   */
  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;

  /** Used to detect host constructors (Safari). */
  var reIsHostCtor = /^\[object .+?Constructor\]$/;

  /** Used for built-in method references. */
  var funcProto = Function.prototype,
      objectProto = Object.prototype;

  /** Used to resolve the decompiled source of functions. */
  var funcToString = funcProto.toString;

  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;

  /** Used to detect if a method is native. */
  var reIsNative = RegExp('^' + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&').replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$');

  /**
   * The base implementation of `_.isNative` without bad shim checks.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a native function,
   *  else `false`.
   */
  function baseIsNative(value) {
    if (!isObject(value) || isMasked(value)) {
      return false;
    }
    var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
    return pattern.test(toSource(value));
  }

  module.exports = baseIsNative;
});
$__System.registerDynamic("215", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Gets the value at `key` of `object`.
   *
   * @private
   * @param {Object} [object] The object to query.
   * @param {string} key The key of the property to get.
   * @returns {*} Returns the property value.
   */
  function getValue(object, key) {
    return object == null ? undefined : object[key];
  }

  module.exports = getValue;
});
$__System.registerDynamic('1d3', ['214', '215'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseIsNative = $__require('214'),
      getValue = $__require('215');

  /**
   * Gets the native function at `key` of `object`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {string} key The key of the method to get.
   * @returns {*} Returns the function if it's native, else `undefined`.
   */
  function getNative(object, key) {
    var value = getValue(object, key);
    return baseIsNative(value) ? value : undefined;
  }

  module.exports = getNative;
});
$__System.registerDynamic('1f3', [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /** Detect free variable `global` from Node.js. */
  var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;

  module.exports = freeGlobal;
});
$__System.registerDynamic('1d0', ['1f3'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var freeGlobal = $__require('1f3');

  /** Detect free variable `self`. */
  var freeSelf = typeof self == 'object' && self && self.Object === Object && self;

  /** Used as a reference to the global object. */
  var root = freeGlobal || freeSelf || Function('return this')();

  module.exports = root;
});
$__System.registerDynamic('1e0', ['1d3', '1d0'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    var getNative = $__require('1d3'),
        root = $__require('1d0');

    /* Built-in method references that are verified to be native. */
    var Set = getNative(root, 'Set');

    module.exports = Set;
});
$__System.registerDynamic("216", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * This method returns `undefined`.
   *
   * @static
   * @memberOf _
   * @since 2.3.0
   * @category Util
   * @example
   *
   * _.times(2, _.noop);
   * // => [undefined, undefined]
   */
  function noop() {
    // No operation performed.
  }

  module.exports = noop;
});
$__System.registerDynamic('217', ['1e0', '216', '78'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var Set = $__require('1e0'),
      noop = $__require('216'),
      setToArray = $__require('78');

  /** Used as references for various `Number` constants. */
  var INFINITY = 1 / 0;

  /**
   * Creates a set object of `values`.
   *
   * @private
   * @param {Array} values The values to add to the set.
   * @returns {Object} Returns the new set.
   */
  var createSet = !(Set && 1 / setToArray(new Set([, -0]))[1] == INFINITY) ? noop : function (values) {
    return new Set(values);
  };

  module.exports = createSet;
});
$__System.registerDynamic("78", [], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  /**
   * Converts `set` to an array of its values.
   *
   * @private
   * @param {Object} set The set to convert.
   * @returns {Array} Returns the values.
   */
  function setToArray(set) {
    var index = -1,
        result = Array(set.size);

    set.forEach(function (value) {
      result[++index] = value;
    });
    return result;
  }

  module.exports = setToArray;
});
$__System.registerDynamic('218', ['72', '20e', '20f', '73', '217', '78'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var SetCache = $__require('72'),
      arrayIncludes = $__require('20e'),
      arrayIncludesWith = $__require('20f'),
      cacheHas = $__require('73'),
      createSet = $__require('217'),
      setToArray = $__require('78');

  /** Used as the size to enable large array optimizations. */
  var LARGE_ARRAY_SIZE = 200;

  /**
   * The base implementation of `_.uniqBy` without support for iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {Function} [iteratee] The iteratee invoked per element.
   * @param {Function} [comparator] The comparator invoked per element.
   * @returns {Array} Returns the new duplicate free array.
   */
  function baseUniq(array, iteratee, comparator) {
    var index = -1,
        includes = arrayIncludes,
        length = array.length,
        isCommon = true,
        result = [],
        seen = result;

    if (comparator) {
      isCommon = false;
      includes = arrayIncludesWith;
    } else if (length >= LARGE_ARRAY_SIZE) {
      var set = iteratee ? null : createSet(array);
      if (set) {
        return setToArray(set);
      }
      isCommon = false;
      includes = cacheHas;
      seen = new SetCache();
    } else {
      seen = iteratee ? [] : result;
    }
    outer: while (++index < length) {
      var value = array[index],
          computed = iteratee ? iteratee(value) : value;

      value = comparator || value !== 0 ? value : 0;
      if (isCommon && computed === computed) {
        var seenIndex = seen.length;
        while (seenIndex--) {
          if (seen[seenIndex] === computed) {
            continue outer;
          }
        }
        if (iteratee) {
          seen.push(computed);
        }
        result.push(value);
      } else if (!includes(seen, computed, comparator)) {
        if (seen !== result) {
          seen.push(computed);
        }
        result.push(value);
      }
    }
    return result;
  }

  module.exports = baseUniq;
});
$__System.registerDynamic('219', ['218'], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  var baseUniq = $__require('218');

  /**
   * Creates a duplicate-free version of an array, using
   * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
   * for equality comparisons, in which only the first occurrence of each element
   * is kept. The order of result values is determined by the order they occur
   * in the array.
   *
   * @static
   * @memberOf _
   * @since 0.1.0
   * @category Array
   * @param {Array} array The array to inspect.
   * @returns {Array} Returns the new duplicate free array.
   * @example
   *
   * _.uniq([2, 1, 2]);
   * // => [2, 1]
   */
  function uniq(array) {
    return array && array.length ? baseUniq(array) : [];
  }

  module.exports = uniq;
});
$__System.registerDynamic('21a', ['1b0', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('1b0');
  module.exports = $__require('39').Symbol['for'];
});
$__System.registerDynamic("21b", ["21a"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("21a"), __esModule: true };
});
$__System.registerDynamic("1bc", ["21b"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.NOT_LOCAL_BINDING = exports.BLOCK_SCOPED_SYMBOL = exports.INHERIT_KEYS = exports.UNARY_OPERATORS = exports.STRING_UNARY_OPERATORS = exports.NUMBER_UNARY_OPERATORS = exports.BOOLEAN_UNARY_OPERATORS = exports.BINARY_OPERATORS = exports.NUMBER_BINARY_OPERATORS = exports.BOOLEAN_BINARY_OPERATORS = exports.COMPARISON_BINARY_OPERATORS = exports.EQUALITY_BINARY_OPERATORS = exports.BOOLEAN_NUMBER_BINARY_OPERATORS = exports.UPDATE_OPERATORS = exports.LOGICAL_OPERATORS = exports.COMMENT_KEYS = exports.FOR_INIT_KEYS = exports.FLATTENABLE_KEYS = exports.STATEMENT_OR_BLOCK_KEYS = undefined;

  var _for = $__require("21b");

  var _for2 = _interopRequireDefault(_for);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var STATEMENT_OR_BLOCK_KEYS = exports.STATEMENT_OR_BLOCK_KEYS = ["consequent", "body", "alternate"];
  var FLATTENABLE_KEYS = exports.FLATTENABLE_KEYS = ["body", "expressions"];
  var FOR_INIT_KEYS = exports.FOR_INIT_KEYS = ["left", "init"];
  var COMMENT_KEYS = exports.COMMENT_KEYS = ["leadingComments", "trailingComments", "innerComments"];

  var LOGICAL_OPERATORS = exports.LOGICAL_OPERATORS = ["||", "&&"];
  var UPDATE_OPERATORS = exports.UPDATE_OPERATORS = ["++", "--"];

  var BOOLEAN_NUMBER_BINARY_OPERATORS = exports.BOOLEAN_NUMBER_BINARY_OPERATORS = [">", "<", ">=", "<="];
  var EQUALITY_BINARY_OPERATORS = exports.EQUALITY_BINARY_OPERATORS = ["==", "===", "!=", "!=="];
  var COMPARISON_BINARY_OPERATORS = exports.COMPARISON_BINARY_OPERATORS = [].concat(EQUALITY_BINARY_OPERATORS, ["in", "instanceof"]);
  var BOOLEAN_BINARY_OPERATORS = exports.BOOLEAN_BINARY_OPERATORS = [].concat(COMPARISON_BINARY_OPERATORS, BOOLEAN_NUMBER_BINARY_OPERATORS);
  var NUMBER_BINARY_OPERATORS = exports.NUMBER_BINARY_OPERATORS = ["-", "/", "%", "*", "**", "&", "|", ">>", ">>>", "<<", "^"];
  var BINARY_OPERATORS = exports.BINARY_OPERATORS = ["+"].concat(NUMBER_BINARY_OPERATORS, BOOLEAN_BINARY_OPERATORS);

  var BOOLEAN_UNARY_OPERATORS = exports.BOOLEAN_UNARY_OPERATORS = ["delete", "!"];
  var NUMBER_UNARY_OPERATORS = exports.NUMBER_UNARY_OPERATORS = ["+", "-", "++", "--", "~"];
  var STRING_UNARY_OPERATORS = exports.STRING_UNARY_OPERATORS = ["typeof"];
  var UNARY_OPERATORS = exports.UNARY_OPERATORS = ["void"].concat(BOOLEAN_UNARY_OPERATORS, NUMBER_UNARY_OPERATORS, STRING_UNARY_OPERATORS);

  var INHERIT_KEYS = exports.INHERIT_KEYS = {
    optional: ["typeAnnotation", "typeParameters", "returnType"],
    force: ["start", "loc", "end"]
  };

  var BLOCK_SCOPED_SYMBOL = exports.BLOCK_SCOPED_SYMBOL = (0, _for2.default)("var used to be block scoped");
  var NOT_LOCAL_BINDING = exports.NOT_LOCAL_BINDING = (0, _for2.default)("should not be considered a local binding");
});
$__System.registerDynamic("21c", ["11", "1bc", "21d"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _index = $__require("11");

  var t = _interopRequireWildcard(_index);

  var _constants = $__require("1bc");

  var _index2 = $__require("21d");

  var _index3 = _interopRequireDefault(_index2);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  (0, _index3.default)("ArrayExpression", {
    fields: {
      elements: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeOrValueType)("null", "Expression", "SpreadElement"))),
        default: []
      }
    },
    visitor: ["elements"],
    aliases: ["Expression"]
  });

  (0, _index3.default)("AssignmentExpression", {
    fields: {
      operator: {
        validate: (0, _index2.assertValueType)("string")
      },
      left: {
        validate: (0, _index2.assertNodeType)("LVal")
      },
      right: {
        validate: (0, _index2.assertNodeType)("Expression")
      }
    },
    builder: ["operator", "left", "right"],
    visitor: ["left", "right"],
    aliases: ["Expression"]
  });

  (0, _index3.default)("BinaryExpression", {
    builder: ["operator", "left", "right"],
    fields: {
      operator: {
        validate: _index2.assertOneOf.apply(undefined, _constants.BINARY_OPERATORS)
      },
      left: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      right: {
        validate: (0, _index2.assertNodeType)("Expression")
      }
    },
    visitor: ["left", "right"],
    aliases: ["Binary", "Expression"]
  });

  (0, _index3.default)("Directive", {
    visitor: ["value"],
    fields: {
      value: {
        validate: (0, _index2.assertNodeType)("DirectiveLiteral")
      }
    }
  });

  (0, _index3.default)("DirectiveLiteral", {
    builder: ["value"],
    fields: {
      value: {
        validate: (0, _index2.assertValueType)("string")
      }
    }
  });

  (0, _index3.default)("BlockStatement", {
    builder: ["body", "directives"],
    visitor: ["directives", "body"],
    fields: {
      directives: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Directive"))),
        default: []
      },
      body: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Statement")))
      }
    },
    aliases: ["Scopable", "BlockParent", "Block", "Statement"]
  });

  (0, _index3.default)("BreakStatement", {
    visitor: ["label"],
    fields: {
      label: {
        validate: (0, _index2.assertNodeType)("Identifier"),
        optional: true
      }
    },
    aliases: ["Statement", "Terminatorless", "CompletionStatement"]
  });

  (0, _index3.default)("CallExpression", {
    visitor: ["callee", "arguments"],
    fields: {
      callee: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      arguments: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Expression", "SpreadElement")))
      }
    },
    aliases: ["Expression"]
  });

  (0, _index3.default)("CatchClause", {
    visitor: ["param", "body"],
    fields: {
      param: {
        validate: (0, _index2.assertNodeType)("Identifier")
      },
      body: {
        validate: (0, _index2.assertNodeType)("BlockStatement")
      }
    },
    aliases: ["Scopable"]
  });

  (0, _index3.default)("ConditionalExpression", {
    visitor: ["test", "consequent", "alternate"],
    fields: {
      test: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      consequent: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      alternate: {
        validate: (0, _index2.assertNodeType)("Expression")
      }
    },
    aliases: ["Expression", "Conditional"]
  });

  (0, _index3.default)("ContinueStatement", {
    visitor: ["label"],
    fields: {
      label: {
        validate: (0, _index2.assertNodeType)("Identifier"),
        optional: true
      }
    },
    aliases: ["Statement", "Terminatorless", "CompletionStatement"]
  });

  (0, _index3.default)("DebuggerStatement", {
    aliases: ["Statement"]
  });

  (0, _index3.default)("DoWhileStatement", {
    visitor: ["test", "body"],
    fields: {
      test: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      body: {
        validate: (0, _index2.assertNodeType)("Statement")
      }
    },
    aliases: ["Statement", "BlockParent", "Loop", "While", "Scopable"]
  });

  (0, _index3.default)("EmptyStatement", {
    aliases: ["Statement"]
  });

  (0, _index3.default)("ExpressionStatement", {
    visitor: ["expression"],
    fields: {
      expression: {
        validate: (0, _index2.assertNodeType)("Expression")
      }
    },
    aliases: ["Statement", "ExpressionWrapper"]
  });

  (0, _index3.default)("File", {
    builder: ["program", "comments", "tokens"],
    visitor: ["program"],
    fields: {
      program: {
        validate: (0, _index2.assertNodeType)("Program")
      }
    }
  });

  (0, _index3.default)("ForInStatement", {
    visitor: ["left", "right", "body"],
    aliases: ["Scopable", "Statement", "For", "BlockParent", "Loop", "ForXStatement"],
    fields: {
      left: {
        validate: (0, _index2.assertNodeType)("VariableDeclaration", "LVal")
      },
      right: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      body: {
        validate: (0, _index2.assertNodeType)("Statement")
      }
    }
  });

  (0, _index3.default)("ForStatement", {
    visitor: ["init", "test", "update", "body"],
    aliases: ["Scopable", "Statement", "For", "BlockParent", "Loop"],
    fields: {
      init: {
        validate: (0, _index2.assertNodeType)("VariableDeclaration", "Expression"),
        optional: true
      },
      test: {
        validate: (0, _index2.assertNodeType)("Expression"),
        optional: true
      },
      update: {
        validate: (0, _index2.assertNodeType)("Expression"),
        optional: true
      },
      body: {
        validate: (0, _index2.assertNodeType)("Statement")
      }
    }
  });

  (0, _index3.default)("FunctionDeclaration", {
    builder: ["id", "params", "body", "generator", "async"],
    visitor: ["id", "params", "body", "returnType", "typeParameters"],
    fields: {
      id: {
        validate: (0, _index2.assertNodeType)("Identifier")
      },
      params: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("LVal")))
      },
      body: {
        validate: (0, _index2.assertNodeType)("BlockStatement")
      },
      generator: {
        default: false,
        validate: (0, _index2.assertValueType)("boolean")
      },
      async: {
        default: false,
        validate: (0, _index2.assertValueType)("boolean")
      }
    },
    aliases: ["Scopable", "Function", "BlockParent", "FunctionParent", "Statement", "Pureish", "Declaration"]
  });

  (0, _index3.default)("FunctionExpression", {
    inherits: "FunctionDeclaration",
    aliases: ["Scopable", "Function", "BlockParent", "FunctionParent", "Expression", "Pureish"],
    fields: {
      id: {
        validate: (0, _index2.assertNodeType)("Identifier"),
        optional: true
      },
      params: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("LVal")))
      },
      body: {
        validate: (0, _index2.assertNodeType)("BlockStatement")
      },
      generator: {
        default: false,
        validate: (0, _index2.assertValueType)("boolean")
      },
      async: {
        default: false,
        validate: (0, _index2.assertValueType)("boolean")
      }
    }
  });

  (0, _index3.default)("Identifier", {
    builder: ["name"],
    visitor: ["typeAnnotation"],
    aliases: ["Expression", "LVal"],
    fields: {
      name: {
        validate: function validate(node, key, val) {
          if (!t.isValidIdentifier(val)) {}
        }
      },
      decorators: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Decorator")))
      }
    }
  });

  (0, _index3.default)("IfStatement", {
    visitor: ["test", "consequent", "alternate"],
    aliases: ["Statement", "Conditional"],
    fields: {
      test: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      consequent: {
        validate: (0, _index2.assertNodeType)("Statement")
      },
      alternate: {
        optional: true,
        validate: (0, _index2.assertNodeType)("Statement")
      }
    }
  });

  (0, _index3.default)("LabeledStatement", {
    visitor: ["label", "body"],
    aliases: ["Statement"],
    fields: {
      label: {
        validate: (0, _index2.assertNodeType)("Identifier")
      },
      body: {
        validate: (0, _index2.assertNodeType)("Statement")
      }
    }
  });

  (0, _index3.default)("StringLiteral", {
    builder: ["value"],
    fields: {
      value: {
        validate: (0, _index2.assertValueType)("string")
      }
    },
    aliases: ["Expression", "Pureish", "Literal", "Immutable"]
  });

  (0, _index3.default)("NumericLiteral", {
    builder: ["value"],
    deprecatedAlias: "NumberLiteral",
    fields: {
      value: {
        validate: (0, _index2.assertValueType)("number")
      }
    },
    aliases: ["Expression", "Pureish", "Literal", "Immutable"]
  });

  (0, _index3.default)("NullLiteral", {
    aliases: ["Expression", "Pureish", "Literal", "Immutable"]
  });

  (0, _index3.default)("BooleanLiteral", {
    builder: ["value"],
    fields: {
      value: {
        validate: (0, _index2.assertValueType)("boolean")
      }
    },
    aliases: ["Expression", "Pureish", "Literal", "Immutable"]
  });

  (0, _index3.default)("RegExpLiteral", {
    builder: ["pattern", "flags"],
    deprecatedAlias: "RegexLiteral",
    aliases: ["Expression", "Literal"],
    fields: {
      pattern: {
        validate: (0, _index2.assertValueType)("string")
      },
      flags: {
        validate: (0, _index2.assertValueType)("string"),
        default: ""
      }
    }
  });

  (0, _index3.default)("LogicalExpression", {
    builder: ["operator", "left", "right"],
    visitor: ["left", "right"],
    aliases: ["Binary", "Expression"],
    fields: {
      operator: {
        validate: _index2.assertOneOf.apply(undefined, _constants.LOGICAL_OPERATORS)
      },
      left: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      right: {
        validate: (0, _index2.assertNodeType)("Expression")
      }
    }
  });

  (0, _index3.default)("MemberExpression", {
    builder: ["object", "property", "computed"],
    visitor: ["object", "property"],
    aliases: ["Expression", "LVal"],
    fields: {
      object: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      property: {
        validate: function validate(node, key, val) {
          var expectedType = node.computed ? "Expression" : "Identifier";
          (0, _index2.assertNodeType)(expectedType)(node, key, val);
        }
      },
      computed: {
        default: false
      }
    }
  });

  (0, _index3.default)("NewExpression", {
    visitor: ["callee", "arguments"],
    aliases: ["Expression"],
    fields: {
      callee: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      arguments: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Expression", "SpreadElement")))
      }
    }
  });

  (0, _index3.default)("Program", {
    visitor: ["directives", "body"],
    builder: ["body", "directives"],
    fields: {
      directives: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Directive"))),
        default: []
      },
      body: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Statement")))
      }
    },
    aliases: ["Scopable", "BlockParent", "Block", "FunctionParent"]
  });

  (0, _index3.default)("ObjectExpression", {
    visitor: ["properties"],
    aliases: ["Expression"],
    fields: {
      properties: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("ObjectMethod", "ObjectProperty", "SpreadProperty")))
      }
    }
  });

  (0, _index3.default)("ObjectMethod", {
    builder: ["kind", "key", "params", "body", "computed"],
    fields: {
      kind: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("string"), (0, _index2.assertOneOf)("method", "get", "set")),
        default: "method"
      },
      computed: {
        validate: (0, _index2.assertValueType)("boolean"),
        default: false
      },
      key: {
        validate: function validate(node, key, val) {
          var expectedTypes = node.computed ? ["Expression"] : ["Identifier", "StringLiteral", "NumericLiteral"];
          _index2.assertNodeType.apply(undefined, expectedTypes)(node, key, val);
        }
      },
      decorators: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Decorator")))
      },
      body: {
        validate: (0, _index2.assertNodeType)("BlockStatement")
      },
      generator: {
        default: false,
        validate: (0, _index2.assertValueType)("boolean")
      },
      async: {
        default: false,
        validate: (0, _index2.assertValueType)("boolean")
      }
    },
    visitor: ["key", "params", "body", "decorators", "returnType", "typeParameters"],
    aliases: ["UserWhitespacable", "Function", "Scopable", "BlockParent", "FunctionParent", "Method", "ObjectMember"]
  });

  (0, _index3.default)("ObjectProperty", {
    builder: ["key", "value", "computed", "shorthand", "decorators"],
    fields: {
      computed: {
        validate: (0, _index2.assertValueType)("boolean"),
        default: false
      },
      key: {
        validate: function validate(node, key, val) {
          var expectedTypes = node.computed ? ["Expression"] : ["Identifier", "StringLiteral", "NumericLiteral"];
          _index2.assertNodeType.apply(undefined, expectedTypes)(node, key, val);
        }
      },
      value: {
        validate: (0, _index2.assertNodeType)("Expression", "Pattern", "RestElement")
      },
      shorthand: {
        validate: (0, _index2.assertValueType)("boolean"),
        default: false
      },
      decorators: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Decorator"))),
        optional: true
      }
    },
    visitor: ["key", "value", "decorators"],
    aliases: ["UserWhitespacable", "Property", "ObjectMember"]
  });

  (0, _index3.default)("RestElement", {
    visitor: ["argument", "typeAnnotation"],
    aliases: ["LVal"],
    fields: {
      argument: {
        validate: (0, _index2.assertNodeType)("LVal")
      },
      decorators: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Decorator")))
      }
    }
  });

  (0, _index3.default)("ReturnStatement", {
    visitor: ["argument"],
    aliases: ["Statement", "Terminatorless", "CompletionStatement"],
    fields: {
      argument: {
        validate: (0, _index2.assertNodeType)("Expression"),
        optional: true
      }
    }
  });

  (0, _index3.default)("SequenceExpression", {
    visitor: ["expressions"],
    fields: {
      expressions: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Expression")))
      }
    },
    aliases: ["Expression"]
  });

  (0, _index3.default)("SwitchCase", {
    visitor: ["test", "consequent"],
    fields: {
      test: {
        validate: (0, _index2.assertNodeType)("Expression"),
        optional: true
      },
      consequent: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("Statement")))
      }
    }
  });

  (0, _index3.default)("SwitchStatement", {
    visitor: ["discriminant", "cases"],
    aliases: ["Statement", "BlockParent", "Scopable"],
    fields: {
      discriminant: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      cases: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("SwitchCase")))
      }
    }
  });

  (0, _index3.default)("ThisExpression", {
    aliases: ["Expression"]
  });

  (0, _index3.default)("ThrowStatement", {
    visitor: ["argument"],
    aliases: ["Statement", "Terminatorless", "CompletionStatement"],
    fields: {
      argument: {
        validate: (0, _index2.assertNodeType)("Expression")
      }
    }
  });

  (0, _index3.default)("TryStatement", {
    visitor: ["block", "handler", "finalizer"],
    aliases: ["Statement"],
    fields: {
      body: {
        validate: (0, _index2.assertNodeType)("BlockStatement")
      },
      handler: {
        optional: true,
        handler: (0, _index2.assertNodeType)("BlockStatement")
      },
      finalizer: {
        optional: true,
        validate: (0, _index2.assertNodeType)("BlockStatement")
      }
    }
  });

  (0, _index3.default)("UnaryExpression", {
    builder: ["operator", "argument", "prefix"],
    fields: {
      prefix: {
        default: true
      },
      argument: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      operator: {
        validate: _index2.assertOneOf.apply(undefined, _constants.UNARY_OPERATORS)
      }
    },
    visitor: ["argument"],
    aliases: ["UnaryLike", "Expression"]
  });

  (0, _index3.default)("UpdateExpression", {
    builder: ["operator", "argument", "prefix"],
    fields: {
      prefix: {
        default: false
      },
      argument: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      operator: {
        validate: _index2.assertOneOf.apply(undefined, _constants.UPDATE_OPERATORS)
      }
    },
    visitor: ["argument"],
    aliases: ["Expression"]
  });

  (0, _index3.default)("VariableDeclaration", {
    builder: ["kind", "declarations"],
    visitor: ["declarations"],
    aliases: ["Statement", "Declaration"],
    fields: {
      kind: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("string"), (0, _index2.assertOneOf)("var", "let", "const"))
      },
      declarations: {
        validate: (0, _index2.chain)((0, _index2.assertValueType)("array"), (0, _index2.assertEach)((0, _index2.assertNodeType)("VariableDeclarator")))
      }
    }
  });

  (0, _index3.default)("VariableDeclarator", {
    visitor: ["id", "init"],
    fields: {
      id: {
        validate: (0, _index2.assertNodeType)("LVal")
      },
      init: {
        optional: true,
        validate: (0, _index2.assertNodeType)("Expression")
      }
    }
  });

  (0, _index3.default)("WhileStatement", {
    visitor: ["test", "body"],
    aliases: ["Statement", "BlockParent", "Loop", "While", "Scopable"],
    fields: {
      test: {
        validate: (0, _index2.assertNodeType)("Expression")
      },
      body: {
        validate: (0, _index2.assertNodeType)("BlockStatement", "Statement")
      }
    }
  });

  (0, _index3.default)("WithStatement", {
    visitor: ["object", "body"],
    aliases: ["Statement"],
    fields: {
      object: {
        object: (0, _index2.assertNodeType)("Expression")
      },
      body: {
        validate: (0, _index2.assertNodeType)("BlockStatement", "Statement")
      }
    }
  });
});
$__System.registerDynamic("21e", ["21d"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _index = $__require("21d");

  var _index2 = _interopRequireDefault(_index);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  (0, _index2.default)("AssignmentPattern", {
    visitor: ["left", "right"],
    aliases: ["Pattern", "LVal"],
    fields: {
      left: {
        validate: (0, _index.assertNodeType)("Identifier")
      },
      right: {
        validate: (0, _index.assertNodeType)("Expression")
      },
      decorators: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("Decorator")))
      }
    }
  });

  (0, _index2.default)("ArrayPattern", {
    visitor: ["elements", "typeAnnotation"],
    aliases: ["Pattern", "LVal"],
    fields: {
      elements: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("Identifier", "Pattern", "RestElement")))
      },
      decorators: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("Decorator")))
      }
    }
  });

  (0, _index2.default)("ArrowFunctionExpression", {
    builder: ["params", "body", "async"],
    visitor: ["params", "body", "returnType", "typeParameters"],
    aliases: ["Scopable", "Function", "BlockParent", "FunctionParent", "Expression", "Pureish"],
    fields: {
      params: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("LVal")))
      },
      body: {
        validate: (0, _index.assertNodeType)("BlockStatement", "Expression")
      },
      async: {
        validate: (0, _index.assertValueType)("boolean"),
        default: false
      }
    }
  });

  (0, _index2.default)("ClassBody", {
    visitor: ["body"],
    fields: {
      body: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("ClassMethod", "ClassProperty")))
      }
    }
  });

  (0, _index2.default)("ClassDeclaration", {
    builder: ["id", "superClass", "body", "decorators"],
    visitor: ["id", "body", "superClass", "mixins", "typeParameters", "superTypeParameters", "implements", "decorators"],
    aliases: ["Scopable", "Class", "Statement", "Declaration", "Pureish"],
    fields: {
      id: {
        validate: (0, _index.assertNodeType)("Identifier")
      },
      body: {
        validate: (0, _index.assertNodeType)("ClassBody")
      },
      superClass: {
        optional: true,
        validate: (0, _index.assertNodeType)("Expression")
      },
      decorators: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("Decorator")))
      }
    }
  });

  (0, _index2.default)("ClassExpression", {
    inherits: "ClassDeclaration",
    aliases: ["Scopable", "Class", "Expression", "Pureish"],
    fields: {
      id: {
        optional: true,
        validate: (0, _index.assertNodeType)("Identifier")
      },
      body: {
        validate: (0, _index.assertNodeType)("ClassBody")
      },
      superClass: {
        optional: true,
        validate: (0, _index.assertNodeType)("Expression")
      },
      decorators: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("Decorator")))
      }
    }
  });

  (0, _index2.default)("ExportAllDeclaration", {
    visitor: ["source"],
    aliases: ["Statement", "Declaration", "ModuleDeclaration", "ExportDeclaration"],
    fields: {
      source: {
        validate: (0, _index.assertNodeType)("StringLiteral")
      }
    }
  });

  (0, _index2.default)("ExportDefaultDeclaration", {
    visitor: ["declaration"],
    aliases: ["Statement", "Declaration", "ModuleDeclaration", "ExportDeclaration"],
    fields: {
      declaration: {
        validate: (0, _index.assertNodeType)("FunctionDeclaration", "ClassDeclaration", "Expression")
      }
    }
  });

  (0, _index2.default)("ExportNamedDeclaration", {
    visitor: ["declaration", "specifiers", "source"],
    aliases: ["Statement", "Declaration", "ModuleDeclaration", "ExportDeclaration"],
    fields: {
      declaration: {
        validate: (0, _index.assertNodeType)("Declaration"),
        optional: true
      },
      specifiers: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("ExportSpecifier")))
      },
      source: {
        validate: (0, _index.assertNodeType)("StringLiteral"),
        optional: true
      }
    }
  });

  (0, _index2.default)("ExportSpecifier", {
    visitor: ["local", "exported"],
    aliases: ["ModuleSpecifier"],
    fields: {
      local: {
        validate: (0, _index.assertNodeType)("Identifier")
      },
      exported: {
        validate: (0, _index.assertNodeType)("Identifier")
      }
    }
  });

  (0, _index2.default)("ForOfStatement", {
    visitor: ["left", "right", "body"],
    aliases: ["Scopable", "Statement", "For", "BlockParent", "Loop", "ForXStatement"],
    fields: {
      left: {
        validate: (0, _index.assertNodeType)("VariableDeclaration", "LVal")
      },
      right: {
        validate: (0, _index.assertNodeType)("Expression")
      },
      body: {
        validate: (0, _index.assertNodeType)("Statement")
      }
    }
  });

  (0, _index2.default)("ImportDeclaration", {
    visitor: ["specifiers", "source"],
    aliases: ["Statement", "Declaration", "ModuleDeclaration"],
    fields: {
      specifiers: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("ImportSpecifier", "ImportDefaultSpecifier", "ImportNamespaceSpecifier")))
      },
      source: {
        validate: (0, _index.assertNodeType)("StringLiteral")
      }
    }
  });

  (0, _index2.default)("ImportDefaultSpecifier", {
    visitor: ["local"],
    aliases: ["ModuleSpecifier"],
    fields: {
      local: {
        validate: (0, _index.assertNodeType)("Identifier")
      }
    }
  });

  (0, _index2.default)("ImportNamespaceSpecifier", {
    visitor: ["local"],
    aliases: ["ModuleSpecifier"],
    fields: {
      local: {
        validate: (0, _index.assertNodeType)("Identifier")
      }
    }
  });

  (0, _index2.default)("ImportSpecifier", {
    visitor: ["local", "imported"],
    aliases: ["ModuleSpecifier"],
    fields: {
      local: {
        validate: (0, _index.assertNodeType)("Identifier")
      },
      imported: {
        validate: (0, _index.assertNodeType)("Identifier")
      },
      importKind: {
        validate: (0, _index.assertOneOf)(null, "type", "typeof")
      }
    }
  });

  (0, _index2.default)("MetaProperty", {
    visitor: ["meta", "property"],
    aliases: ["Expression"],
    fields: {
      meta: {
        validate: (0, _index.assertValueType)("string")
      },
      property: {
        validate: (0, _index.assertValueType)("string")
      }
    }
  });

  (0, _index2.default)("ClassMethod", {
    aliases: ["Function", "Scopable", "BlockParent", "FunctionParent", "Method"],
    builder: ["kind", "key", "params", "body", "computed", "static"],
    visitor: ["key", "params", "body", "decorators", "returnType", "typeParameters"],
    fields: {
      kind: {
        validate: (0, _index.chain)((0, _index.assertValueType)("string"), (0, _index.assertOneOf)("get", "set", "method", "constructor")),
        default: "method"
      },
      computed: {
        default: false,
        validate: (0, _index.assertValueType)("boolean")
      },
      static: {
        default: false,
        validate: (0, _index.assertValueType)("boolean")
      },
      key: {
        validate: function validate(node, key, val) {
          var expectedTypes = node.computed ? ["Expression"] : ["Identifier", "StringLiteral", "NumericLiteral"];
          _index.assertNodeType.apply(undefined, expectedTypes)(node, key, val);
        }
      },
      params: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("LVal")))
      },
      body: {
        validate: (0, _index.assertNodeType)("BlockStatement")
      },
      generator: {
        default: false,
        validate: (0, _index.assertValueType)("boolean")
      },
      async: {
        default: false,
        validate: (0, _index.assertValueType)("boolean")
      }
    }
  });

  (0, _index2.default)("ObjectPattern", {
    visitor: ["properties", "typeAnnotation"],
    aliases: ["Pattern", "LVal"],
    fields: {
      properties: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("RestProperty", "Property")))
      },
      decorators: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("Decorator")))
      }
    }
  });

  (0, _index2.default)("SpreadElement", {
    visitor: ["argument"],
    aliases: ["UnaryLike"],
    fields: {
      argument: {
        validate: (0, _index.assertNodeType)("Expression")
      }
    }
  });

  (0, _index2.default)("Super", {
    aliases: ["Expression"]
  });

  (0, _index2.default)("TaggedTemplateExpression", {
    visitor: ["tag", "quasi"],
    aliases: ["Expression"],
    fields: {
      tag: {
        validate: (0, _index.assertNodeType)("Expression")
      },
      quasi: {
        validate: (0, _index.assertNodeType)("TemplateLiteral")
      }
    }
  });

  (0, _index2.default)("TemplateElement", {
    builder: ["value", "tail"],
    fields: {
      value: {},
      tail: {
        validate: (0, _index.assertValueType)("boolean"),
        default: false
      }
    }
  });

  (0, _index2.default)("TemplateLiteral", {
    visitor: ["quasis", "expressions"],
    aliases: ["Expression", "Literal"],
    fields: {
      quasis: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("TemplateElement")))
      },
      expressions: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("Expression")))
      }
    }
  });

  (0, _index2.default)("YieldExpression", {
    builder: ["argument", "delegate"],
    visitor: ["argument"],
    aliases: ["Expression", "Terminatorless"],
    fields: {
      delegate: {
        validate: (0, _index.assertValueType)("boolean"),
        default: false
      },
      argument: {
        optional: true,
        validate: (0, _index.assertNodeType)("Expression")
      }
    }
  });
});
$__System.registerDynamic("21f", ["21d"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _index = $__require("21d");

  var _index2 = _interopRequireDefault(_index);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  (0, _index2.default)("AnyTypeAnnotation", {
    aliases: ["Flow", "FlowBaseAnnotation"],
    fields: {}
  });

  (0, _index2.default)("ArrayTypeAnnotation", {
    visitor: ["elementType"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("BooleanTypeAnnotation", {
    aliases: ["Flow", "FlowBaseAnnotation"],
    fields: {}
  });

  (0, _index2.default)("BooleanLiteralTypeAnnotation", {
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("NullLiteralTypeAnnotation", {
    aliases: ["Flow", "FlowBaseAnnotation"],
    fields: {}
  });

  (0, _index2.default)("ClassImplements", {
    visitor: ["id", "typeParameters"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("ClassProperty", {
    visitor: ["key", "value", "typeAnnotation", "decorators"],
    builder: ["key", "value", "typeAnnotation", "decorators", "computed"],
    aliases: ["Property"],
    fields: {
      computed: {
        validate: (0, _index.assertValueType)("boolean"),
        default: false
      }
    }
  });

  (0, _index2.default)("DeclareClass", {
    visitor: ["id", "typeParameters", "extends", "body"],
    aliases: ["Flow", "FlowDeclaration", "Statement", "Declaration"],
    fields: {}
  });

  (0, _index2.default)("DeclareFunction", {
    visitor: ["id"],
    aliases: ["Flow", "FlowDeclaration", "Statement", "Declaration"],
    fields: {}
  });

  (0, _index2.default)("DeclareInterface", {
    visitor: ["id", "typeParameters", "extends", "body"],
    aliases: ["Flow", "FlowDeclaration", "Statement", "Declaration"],
    fields: {}
  });

  (0, _index2.default)("DeclareModule", {
    visitor: ["id", "body"],
    aliases: ["Flow", "FlowDeclaration", "Statement", "Declaration"],
    fields: {}
  });

  (0, _index2.default)("DeclareModuleExports", {
    visitor: ["typeAnnotation"],
    aliases: ["Flow", "FlowDeclaration", "Statement", "Declaration"],
    fields: {}
  });

  (0, _index2.default)("DeclareTypeAlias", {
    visitor: ["id", "typeParameters", "right"],
    aliases: ["Flow", "FlowDeclaration", "Statement", "Declaration"],
    fields: {}
  });

  (0, _index2.default)("DeclareVariable", {
    visitor: ["id"],
    aliases: ["Flow", "FlowDeclaration", "Statement", "Declaration"],
    fields: {}
  });

  (0, _index2.default)("ExistentialTypeParam", {
    aliases: ["Flow"]
  });

  (0, _index2.default)("FunctionTypeAnnotation", {
    visitor: ["typeParameters", "params", "rest", "returnType"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("FunctionTypeParam", {
    visitor: ["name", "typeAnnotation"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("GenericTypeAnnotation", {
    visitor: ["id", "typeParameters"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("InterfaceExtends", {
    visitor: ["id", "typeParameters"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("InterfaceDeclaration", {
    visitor: ["id", "typeParameters", "extends", "body"],
    aliases: ["Flow", "FlowDeclaration", "Statement", "Declaration"],
    fields: {}
  });

  (0, _index2.default)("IntersectionTypeAnnotation", {
    visitor: ["types"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("MixedTypeAnnotation", {
    aliases: ["Flow", "FlowBaseAnnotation"]
  });

  (0, _index2.default)("EmptyTypeAnnotation", {
    aliases: ["Flow", "FlowBaseAnnotation"]
  });

  (0, _index2.default)("NullableTypeAnnotation", {
    visitor: ["typeAnnotation"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("NumericLiteralTypeAnnotation", {
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("NumberTypeAnnotation", {
    aliases: ["Flow", "FlowBaseAnnotation"],
    fields: {}
  });

  (0, _index2.default)("StringLiteralTypeAnnotation", {
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("StringTypeAnnotation", {
    aliases: ["Flow", "FlowBaseAnnotation"],
    fields: {}
  });

  (0, _index2.default)("ThisTypeAnnotation", {
    aliases: ["Flow", "FlowBaseAnnotation"],
    fields: {}
  });

  (0, _index2.default)("TupleTypeAnnotation", {
    visitor: ["types"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("TypeofTypeAnnotation", {
    visitor: ["argument"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("TypeAlias", {
    visitor: ["id", "typeParameters", "right"],
    aliases: ["Flow", "FlowDeclaration", "Statement", "Declaration"],
    fields: {}
  });

  (0, _index2.default)("TypeAnnotation", {
    visitor: ["typeAnnotation"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("TypeCastExpression", {
    visitor: ["expression", "typeAnnotation"],
    aliases: ["Flow", "ExpressionWrapper", "Expression"],
    fields: {}
  });

  (0, _index2.default)("TypeParameter", {
    visitor: ["bound"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("TypeParameterDeclaration", {
    visitor: ["params"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("TypeParameterInstantiation", {
    visitor: ["params"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("ObjectTypeAnnotation", {
    visitor: ["properties", "indexers", "callProperties"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("ObjectTypeCallProperty", {
    visitor: ["value"],
    aliases: ["Flow", "UserWhitespacable"],
    fields: {}
  });

  (0, _index2.default)("ObjectTypeIndexer", {
    visitor: ["id", "key", "value"],
    aliases: ["Flow", "UserWhitespacable"],
    fields: {}
  });

  (0, _index2.default)("ObjectTypeProperty", {
    visitor: ["key", "value"],
    aliases: ["Flow", "UserWhitespacable"],
    fields: {}
  });

  (0, _index2.default)("ObjectTypeSpreadProperty", {
    visitor: ["argument"],
    aliases: ["Flow", "UserWhitespacable"],
    fields: {}
  });

  (0, _index2.default)("QualifiedTypeIdentifier", {
    visitor: ["id", "qualification"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("UnionTypeAnnotation", {
    visitor: ["types"],
    aliases: ["Flow"],
    fields: {}
  });

  (0, _index2.default)("VoidTypeAnnotation", {
    aliases: ["Flow", "FlowBaseAnnotation"],
    fields: {}
  });
});
$__System.registerDynamic("220", ["21d"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _index = $__require("21d");

  var _index2 = _interopRequireDefault(_index);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  (0, _index2.default)("JSXAttribute", {
    visitor: ["name", "value"],
    aliases: ["JSX", "Immutable"],
    fields: {
      name: {
        validate: (0, _index.assertNodeType)("JSXIdentifier", "JSXNamespacedName")
      },
      value: {
        optional: true,
        validate: (0, _index.assertNodeType)("JSXElement", "StringLiteral", "JSXExpressionContainer")
      }
    }
  });

  (0, _index2.default)("JSXClosingElement", {
    visitor: ["name"],
    aliases: ["JSX", "Immutable"],
    fields: {
      name: {
        validate: (0, _index.assertNodeType)("JSXIdentifier", "JSXMemberExpression")
      }
    }
  });

  (0, _index2.default)("JSXElement", {
    builder: ["openingElement", "closingElement", "children", "selfClosing"],
    visitor: ["openingElement", "children", "closingElement"],
    aliases: ["JSX", "Immutable", "Expression"],
    fields: {
      openingElement: {
        validate: (0, _index.assertNodeType)("JSXOpeningElement")
      },
      closingElement: {
        optional: true,
        validate: (0, _index.assertNodeType)("JSXClosingElement")
      },
      children: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("JSXText", "JSXExpressionContainer", "JSXSpreadChild", "JSXElement")))
      }
    }
  });

  (0, _index2.default)("JSXEmptyExpression", {
    aliases: ["JSX", "Expression"]
  });

  (0, _index2.default)("JSXExpressionContainer", {
    visitor: ["expression"],
    aliases: ["JSX", "Immutable"],
    fields: {
      expression: {
        validate: (0, _index.assertNodeType)("Expression")
      }
    }
  });

  (0, _index2.default)("JSXSpreadChild", {
    visitor: ["expression"],
    aliases: ["JSX", "Immutable"],
    fields: {
      expression: {
        validate: (0, _index.assertNodeType)("Expression")
      }
    }
  });

  (0, _index2.default)("JSXIdentifier", {
    builder: ["name"],
    aliases: ["JSX", "Expression"],
    fields: {
      name: {
        validate: (0, _index.assertValueType)("string")
      }
    }
  });

  (0, _index2.default)("JSXMemberExpression", {
    visitor: ["object", "property"],
    aliases: ["JSX", "Expression"],
    fields: {
      object: {
        validate: (0, _index.assertNodeType)("JSXMemberExpression", "JSXIdentifier")
      },
      property: {
        validate: (0, _index.assertNodeType)("JSXIdentifier")
      }
    }
  });

  (0, _index2.default)("JSXNamespacedName", {
    visitor: ["namespace", "name"],
    aliases: ["JSX"],
    fields: {
      namespace: {
        validate: (0, _index.assertNodeType)("JSXIdentifier")
      },
      name: {
        validate: (0, _index.assertNodeType)("JSXIdentifier")
      }
    }
  });

  (0, _index2.default)("JSXOpeningElement", {
    builder: ["name", "attributes", "selfClosing"],
    visitor: ["name", "attributes"],
    aliases: ["JSX", "Immutable"],
    fields: {
      name: {
        validate: (0, _index.assertNodeType)("JSXIdentifier", "JSXMemberExpression")
      },
      selfClosing: {
        default: false,
        validate: (0, _index.assertValueType)("boolean")
      },
      attributes: {
        validate: (0, _index.chain)((0, _index.assertValueType)("array"), (0, _index.assertEach)((0, _index.assertNodeType)("JSXAttribute", "JSXSpreadAttribute")))
      }
    }
  });

  (0, _index2.default)("JSXSpreadAttribute", {
    visitor: ["argument"],
    aliases: ["JSX"],
    fields: {
      argument: {
        validate: (0, _index.assertNodeType)("Expression")
      }
    }
  });

  (0, _index2.default)("JSXText", {
    aliases: ["JSX", "Immutable"],
    builder: ["value"],
    fields: {
      value: {
        validate: (0, _index.assertValueType)("string")
      }
    }
  });
});
$__System.registerDynamic("221", ["21d"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _index = $__require("21d");

  var _index2 = _interopRequireDefault(_index);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  (0, _index2.default)("Noop", {
    visitor: []
  });

  (0, _index2.default)("ParenthesizedExpression", {
    visitor: ["expression"],
    aliases: ["Expression", "ExpressionWrapper"],
    fields: {
      expression: {
        validate: (0, _index.assertNodeType)("Expression")
      }
    }
  });
});
$__System.registerDynamic("222", ["21d"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _index = $__require("21d");

  var _index2 = _interopRequireDefault(_index);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  (0, _index2.default)("AwaitExpression", {
    builder: ["argument"],
    visitor: ["argument"],
    aliases: ["Expression", "Terminatorless"],
    fields: {
      argument: {
        validate: (0, _index.assertNodeType)("Expression")
      }
    }
  });

  (0, _index2.default)("ForAwaitStatement", {
    visitor: ["left", "right", "body"],
    aliases: ["Scopable", "Statement", "For", "BlockParent", "Loop", "ForXStatement"],
    fields: {
      left: {
        validate: (0, _index.assertNodeType)("VariableDeclaration", "LVal")
      },
      right: {
        validate: (0, _index.assertNodeType)("Expression")
      },
      body: {
        validate: (0, _index.assertNodeType)("Statement")
      }
    }
  });

  (0, _index2.default)("BindExpression", {
    visitor: ["object", "callee"],
    aliases: ["Expression"],
    fields: {}
  });

  (0, _index2.default)("Import", {
    aliases: ["Expression"]
  });

  (0, _index2.default)("Decorator", {
    visitor: ["expression"],
    fields: {
      expression: {
        validate: (0, _index.assertNodeType)("Expression")
      }
    }
  });

  (0, _index2.default)("DoExpression", {
    visitor: ["body"],
    aliases: ["Expression"],
    fields: {
      body: {
        validate: (0, _index.assertNodeType)("BlockStatement")
      }
    }
  });

  (0, _index2.default)("ExportDefaultSpecifier", {
    visitor: ["exported"],
    aliases: ["ModuleSpecifier"],
    fields: {
      exported: {
        validate: (0, _index.assertNodeType)("Identifier")
      }
    }
  });

  (0, _index2.default)("ExportNamespaceSpecifier", {
    visitor: ["exported"],
    aliases: ["ModuleSpecifier"],
    fields: {
      exported: {
        validate: (0, _index.assertNodeType)("Identifier")
      }
    }
  });

  (0, _index2.default)("RestProperty", {
    visitor: ["argument"],
    aliases: ["UnaryLike"],
    fields: {
      argument: {
        validate: (0, _index.assertNodeType)("LVal")
      }
    }
  });

  (0, _index2.default)("SpreadProperty", {
    visitor: ["argument"],
    aliases: ["UnaryLike"],
    fields: {
      argument: {
        validate: (0, _index.assertNodeType)("Expression")
      }
    }
  });
});
$__System.registerDynamic("223", ["21d", "21c", "21e", "21f", "220", "221", "222"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  $__require("21d");

  $__require("21c");

  $__require("21e");

  $__require("21f");

  $__require("220");

  $__require("221");

  $__require("222");
});
$__System.registerDynamic('178', ['224', '16b', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // getting tag from 19.1.3.6 Object.prototype.toString()
  var cof = $__require('224'),
      TAG = $__require('16b')('toStringTag')
  // ES3 wrong here
  ,
      ARG = cof(function () {
    return arguments;
  }()) == 'Arguments';

  // fallback for IE11 Script Access Denied error
  var tryGet = function (it, key) {
    try {
      return it[key];
    } catch (e) {/* empty */}
  };

  module.exports = function (it) {
    var O, T, B;
    return it === undefined ? 'Undefined' : it === null ? 'Null'
    // @@toStringTag case
    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
    // builtinTag case
    : ARG ? cof(O)
    // ES3 arguments fallback
    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
  };
});
$__System.registerDynamic('19c', ['178', '16b', '19a', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var classof = $__require('178'),
      ITERATOR = $__require('16b')('iterator'),
      Iterators = $__require('19a');
  module.exports = $__require('39').getIteratorMethod = function (it) {
    if (it != undefined) return it[ITERATOR] || it['@@iterator'] || Iterators[classof(it)];
  };
});
$__System.registerDynamic('225', ['110', '19c', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var anObject = $__require('110'),
      get = $__require('19c');
  module.exports = $__require('39').getIterator = function (it) {
    var iterFn = get(it);
    if (typeof iterFn != 'function') throw TypeError(it + ' is not iterable!');
    return anObject(iterFn.call(it));
  };
});
$__System.registerDynamic('226', ['38', '17b', '225', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('38');
  $__require('17b');
  module.exports = $__require('225');
});
$__System.registerDynamic("17", ["226"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("226"), __esModule: true };
});
$__System.registerDynamic('227', ['39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var core = $__require('39'),
      $JSON = core.JSON || (core.JSON = { stringify: JSON.stringify });
  module.exports = function stringify(it) {
    // eslint-disable-line no-unused-vars
    return $JSON.stringify.apply($JSON, arguments);
  };
});
$__System.registerDynamic("60", ["227"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("227"), __esModule: true };
});
$__System.registerDynamic('228', ['229', '170', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var toInteger = $__require('229'),
      defined = $__require('170');
  // true  -> String#at
  // false -> String#codePointAt
  module.exports = function (TO_STRING) {
    return function (that, pos) {
      var s = String(defined(that)),
          i = toInteger(pos),
          l = s.length,
          a,
          b;
      if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
      a = s.charCodeAt(i);
      return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff ? TO_STRING ? s.charAt(i) : a : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
    };
  };
});
$__System.registerDynamic('17b', ['228', '172', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var $at = $__require('228')(true);

  // 21.1.3.27 String.prototype[@@iterator]()
  $__require('172')(String, 'String', function (iterated) {
    this._t = String(iterated); // target
    this._i = 0; // next index
    // 21.1.5.2.1 %StringIteratorPrototype%.next()
  }, function () {
    var O = this._t,
        index = this._i,
        point;
    if (index >= O.length) return { value: undefined, done: true };
    point = $at(O, index);
    this._i += point.length;
    return { value: point, done: false };
  });
});
$__System.registerDynamic("22a", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  module.exports = function () {/* empty */};
});
$__System.registerDynamic("173", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  module.exports = function (done, value) {
    return { value: value, done: !!done };
  };
});
$__System.registerDynamic('22b', ['16d', '22c', '1a0', '197', '16b', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var create = $__require('16d'),
      descriptor = $__require('22c'),
      setToStringTag = $__require('1a0'),
      IteratorPrototype = {};

  // 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
  $__require('197')(IteratorPrototype, $__require('16b')('iterator'), function () {
    return this;
  });

  module.exports = function (Constructor, NAME, next) {
    Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });
    setToStringTag(Constructor, NAME + ' Iterator');
  };
});
$__System.registerDynamic('192', ['170', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 7.1.13 ToObject(argument)
  var defined = $__require('170');
  module.exports = function (it) {
    return Object(defined(it));
  };
});
$__System.registerDynamic('22d', ['196', '192', '22e', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
  var has = $__require('196'),
      toObject = $__require('192'),
      IE_PROTO = $__require('22e')('IE_PROTO'),
      ObjectProto = Object.prototype;

  module.exports = Object.getPrototypeOf || function (O) {
    O = toObject(O);
    if (has(O, IE_PROTO)) return O[IE_PROTO];
    if (typeof O.constructor == 'function' && O instanceof O.constructor) {
      return O.constructor.prototype;
    }return O instanceof Object ? ObjectProto : null;
  };
});
$__System.registerDynamic('172', ['22f', 'cb', '1a2', '197', '196', '19a', '22b', '1a0', '22d', '16b', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var LIBRARY = $__require('22f'),
      $export = $__require('cb'),
      redefine = $__require('1a2'),
      hide = $__require('197'),
      has = $__require('196'),
      Iterators = $__require('19a'),
      $iterCreate = $__require('22b'),
      setToStringTag = $__require('1a0'),
      getPrototypeOf = $__require('22d'),
      ITERATOR = $__require('16b')('iterator'),
      BUGGY = !([].keys && 'next' in [].keys()) // Safari has buggy iterators w/o `next`
  ,
      FF_ITERATOR = '@@iterator',
      KEYS = 'keys',
      VALUES = 'values';

  var returnThis = function () {
    return this;
  };

  module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
    $iterCreate(Constructor, NAME, next);
    var getMethod = function (kind) {
      if (!BUGGY && kind in proto) return proto[kind];
      switch (kind) {
        case KEYS:
          return function keys() {
            return new Constructor(this, kind);
          };
        case VALUES:
          return function values() {
            return new Constructor(this, kind);
          };
      }return function entries() {
        return new Constructor(this, kind);
      };
    };
    var TAG = NAME + ' Iterator',
        DEF_VALUES = DEFAULT == VALUES,
        VALUES_BUG = false,
        proto = Base.prototype,
        $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT],
        $default = $native || getMethod(DEFAULT),
        $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined,
        $anyNative = NAME == 'Array' ? proto.entries || $native : $native,
        methods,
        key,
        IteratorPrototype;
    // Fix native
    if ($anyNative) {
      IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));
      if (IteratorPrototype !== Object.prototype) {
        // Set @@toStringTag to native iterators
        setToStringTag(IteratorPrototype, TAG, true);
        // fix for some old engines
        if (!LIBRARY && !has(IteratorPrototype, ITERATOR)) hide(IteratorPrototype, ITERATOR, returnThis);
      }
    }
    // fix Array#{values, @@iterator}.name in V8 / FF
    if (DEF_VALUES && $native && $native.name !== VALUES) {
      VALUES_BUG = true;
      $default = function values() {
        return $native.call(this);
      };
    }
    // Define iterator
    if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
      hide(proto, ITERATOR, $default);
    }
    // Plug for library
    Iterators[NAME] = $default;
    Iterators[TAG] = returnThis;
    if (DEFAULT) {
      methods = {
        values: DEF_VALUES ? $default : getMethod(VALUES),
        keys: IS_SET ? $default : getMethod(KEYS),
        entries: $entries
      };
      if (FORCED) for (key in methods) {
        if (!(key in proto)) redefine(proto, key, methods[key]);
      } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
    }
    return methods;
  };
});
$__System.registerDynamic('230', ['22a', '173', '19a', '231', '172', 'c'], true, function ($__require, exports, module) {
  'use strict';

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var addToUnscopables = $__require('22a'),
      step = $__require('173'),
      Iterators = $__require('19a'),
      toIObject = $__require('231');

  // 22.1.3.4 Array.prototype.entries()
  // 22.1.3.13 Array.prototype.keys()
  // 22.1.3.29 Array.prototype.values()
  // 22.1.3.30 Array.prototype[@@iterator]()
  module.exports = $__require('172')(Array, 'Array', function (iterated, kind) {
    this._t = toIObject(iterated); // target
    this._i = 0; // next index
    this._k = kind; // kind
    // 22.1.5.2.1 %ArrayIteratorPrototype%.next()
  }, function () {
    var O = this._t,
        kind = this._k,
        index = this._i++;
    if (!O || index >= O.length) {
      this._t = undefined;
      return step(1);
    }
    if (kind == 'keys') return step(0, index);
    if (kind == 'values') return step(0, O[index]);
    return step(0, [index, O[index]]);
  }, 'values');

  // argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
  Iterators.Arguments = Iterators.Array;

  addToUnscopables('keys');
  addToUnscopables('values');
  addToUnscopables('entries');
});
$__System.registerDynamic("19a", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  module.exports = {};
});
$__System.registerDynamic('38', ['230', '168', '197', '19a', '16b', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('230');
  var global = $__require('168'),
      hide = $__require('197'),
      Iterators = $__require('19a'),
      TO_STRING_TAG = $__require('16b')('toStringTag');

  for (var collections = ['NodeList', 'DOMTokenList', 'MediaList', 'StyleSheetList', 'CSSRuleList'], i = 0; i < 5; i++) {
    var NAME = collections[i],
        Collection = global[NAME],
        proto = Collection && Collection.prototype;
    if (proto && !proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);
    Iterators[NAME] = Iterators.Array;
  }
});
$__System.registerDynamic('232', ['17b', '38', '233', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('17b');
  $__require('38');
  module.exports = $__require('233').f('iterator');
});
$__System.registerDynamic("234", ["232"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("232"), __esModule: true };
});
$__System.registerDynamic('235', ['c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  module.exports = function (it) {
    if (typeof it != 'function') throw TypeError(it + ' is not a function!');
    return it;
  };
});
$__System.registerDynamic('111', ['235', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // optional / simple context binding
  var aFunction = $__require('235');
  module.exports = function (fn, that, length) {
    aFunction(fn);
    if (that === undefined) return fn;
    switch (length) {
      case 1:
        return function (a) {
          return fn.call(that, a);
        };
      case 2:
        return function (a, b) {
          return fn.call(that, a, b);
        };
      case 3:
        return function (a, b, c) {
          return fn.call(that, a, b, c);
        };
    }
    return function () /* ...args */{
      return fn.apply(that, arguments);
    };
  };
});
$__System.registerDynamic('cb', ['168', '39', '111', '197', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var global = $__require('168'),
      core = $__require('39'),
      ctx = $__require('111'),
      hide = $__require('197'),
      PROTOTYPE = 'prototype';

  var $export = function (type, name, source) {
    var IS_FORCED = type & $export.F,
        IS_GLOBAL = type & $export.G,
        IS_STATIC = type & $export.S,
        IS_PROTO = type & $export.P,
        IS_BIND = type & $export.B,
        IS_WRAP = type & $export.W,
        exports = IS_GLOBAL ? core : core[name] || (core[name] = {}),
        expProto = exports[PROTOTYPE],
        target = IS_GLOBAL ? global : IS_STATIC ? global[name] : (global[name] || {})[PROTOTYPE],
        key,
        own,
        out;
    if (IS_GLOBAL) source = name;
    for (key in source) {
      // contains in native
      own = !IS_FORCED && target && target[key] !== undefined;
      if (own && key in exports) continue;
      // export native or passed
      out = own ? target[key] : source[key];
      // prevent global pollution for namespaces
      exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key]
      // bind timers to global for call from export context
      : IS_BIND && own ? ctx(out, global)
      // wrap global constructors for prevent change them in library
      : IS_WRAP && target[key] == out ? function (C) {
        var F = function (a, b, c) {
          if (this instanceof C) {
            switch (arguments.length) {
              case 0:
                return new C();
              case 1:
                return new C(a);
              case 2:
                return new C(a, b);
            }return new C(a, b, c);
          }return C.apply(this, arguments);
        };
        F[PROTOTYPE] = C[PROTOTYPE];
        return F;
        // make static versions for prototype methods
      }(out) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
      // export proto methods to core.%CONSTRUCTOR%.methods.%NAME%
      if (IS_PROTO) {
        (exports.virtual || (exports.virtual = {}))[key] = out;
        // export proto methods to core.%CONSTRUCTOR%.prototype.%NAME%
        if (type & $export.R && expProto && !expProto[key]) hide(expProto, key, out);
      }
    }
  };
  // type bitmap
  $export.F = 1; // forced
  $export.G = 2; // global
  $export.S = 4; // static
  $export.P = 8; // proto
  $export.B = 16; // bind
  $export.W = 32; // wrap
  $export.U = 64; // safe
  $export.R = 128; // real proto method for `library` 
  module.exports = $export;
});
$__System.registerDynamic('1a2', ['197', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  module.exports = $__require('197');
});
$__System.registerDynamic('174', ['236', '10f', '196', '169', '194', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var META = $__require('236')('meta'),
      isObject = $__require('10f'),
      has = $__require('196'),
      setDesc = $__require('169').f,
      id = 0;
  var isExtensible = Object.isExtensible || function () {
    return true;
  };
  var FREEZE = !$__require('194')(function () {
    return isExtensible(Object.preventExtensions({}));
  });
  var setMeta = function (it) {
    setDesc(it, META, { value: {
        i: 'O' + ++id, // object ID
        w: {} // weak collections IDs
      } });
  };
  var fastKey = function (it, create) {
    // return primitive with prefix
    if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
    if (!has(it, META)) {
      // can't set metadata to uncaught frozen object
      if (!isExtensible(it)) return 'F';
      // not necessary to add metadata
      if (!create) return 'E';
      // add missing metadata
      setMeta(it);
      // return object ID
    }return it[META].i;
  };
  var getWeak = function (it, create) {
    if (!has(it, META)) {
      // can't set metadata to uncaught frozen object
      if (!isExtensible(it)) return true;
      // not necessary to add metadata
      if (!create) return false;
      // add missing metadata
      setMeta(it);
      // return hash weak collections IDs
    }return it[META].w;
  };
  // add metadata on freeze-family methods calling
  var onFreeze = function (it) {
    if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);
    return it;
  };
  var meta = module.exports = {
    KEY: META,
    NEED: false,
    fastKey: fastKey,
    getWeak: getWeak,
    onFreeze: onFreeze
  };
});
$__System.registerDynamic('1a0', ['169', '196', '16b', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var def = $__require('169').f,
      has = $__require('196'),
      TAG = $__require('16b')('toStringTag');

  module.exports = function (it, tag, stat) {
    if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });
  };
});
$__System.registerDynamic('237', ['18f', '231', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var getKeys = $__require('18f'),
      toIObject = $__require('231');
  module.exports = function (object, el) {
    var O = toIObject(object),
        keys = getKeys(O),
        length = keys.length,
        index = 0,
        key;
    while (length > index) if (O[key = keys[index++]] === el) return key;
  };
});
$__System.registerDynamic('238', ['18f', '190', '191', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // all enumerable object keys, includes symbols
  var getKeys = $__require('18f'),
      gOPS = $__require('190'),
      pIE = $__require('191');
  module.exports = function (it) {
    var result = getKeys(it),
        getSymbols = gOPS.f;
    if (getSymbols) {
      var symbols = getSymbols(it),
          isEnum = pIE.f,
          i = 0,
          key;
      while (symbols.length > i) if (isEnum.call(it, key = symbols[i++])) result.push(key);
    }return result;
  };
});
$__System.registerDynamic('19e', ['224', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 7.2.2 IsArray(argument)
  var cof = $__require('224');
  module.exports = Array.isArray || function isArray(arg) {
    return cof(arg) == 'Array';
  };
});
$__System.registerDynamic('239', ['169', '110', '18f', '16a', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var dP = $__require('169'),
      anObject = $__require('110'),
      getKeys = $__require('18f');

  module.exports = $__require('16a') ? Object.defineProperties : function defineProperties(O, Properties) {
    anObject(O);
    var keys = getKeys(Properties),
        length = keys.length,
        i = 0,
        P;
    while (length > i) dP.f(O, P = keys[i++], Properties[P]);
    return O;
  };
});
$__System.registerDynamic('23a', ['168', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  module.exports = $__require('168').document && document.documentElement;
});
$__System.registerDynamic('16d', ['110', '239', '23b', '22e', '23c', '23a', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
  var anObject = $__require('110'),
      dPs = $__require('239'),
      enumBugKeys = $__require('23b'),
      IE_PROTO = $__require('22e')('IE_PROTO'),
      Empty = function () {/* empty */},
      PROTOTYPE = 'prototype';

  // Create object with fake `null` prototype: use iframe Object with cleared prototype
  var createDict = function () {
    // Thrash, waste and sodomy: IE GC bug
    var iframe = $__require('23c')('iframe'),
        i = enumBugKeys.length,
        lt = '<',
        gt = '>',
        iframeDocument;
    iframe.style.display = 'none';
    $__require('23a').appendChild(iframe);
    iframe.src = 'javascript:'; // eslint-disable-line no-script-url
    // createDict = iframe.contentWindow.Object;
    // html.removeChild(iframe);
    iframeDocument = iframe.contentWindow.document;
    iframeDocument.open();
    iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
    iframeDocument.close();
    createDict = iframeDocument.F;
    while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];
    return createDict();
  };

  module.exports = Object.create || function create(O, Properties) {
    var result;
    if (O !== null) {
      Empty[PROTOTYPE] = anObject(O);
      result = new Empty();
      Empty[PROTOTYPE] = null;
      // add "__proto__" for Object.getPrototypeOf polyfill
      result[IE_PROTO] = O;
    } else result = createDict();
    return Properties === undefined ? result : dPs(result, Properties);
  };
});
$__System.registerDynamic('23d', ['231', '23e', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
  var toIObject = $__require('231'),
      gOPN = $__require('23e').f,
      toString = {}.toString;

  var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames ? Object.getOwnPropertyNames(window) : [];

  var getWindowNames = function (it) {
    try {
      return gOPN(it);
    } catch (e) {
      return windowNames.slice();
    }
  };

  module.exports.f = function getOwnPropertyNames(it) {
    return windowNames && toString.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(toIObject(it));
  };
});
$__System.registerDynamic('112', ['191', '22c', '231', '23f', '196', '240', '16a', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var pIE = $__require('191'),
      createDesc = $__require('22c'),
      toIObject = $__require('231'),
      toPrimitive = $__require('23f'),
      has = $__require('196'),
      IE8_DOM_DEFINE = $__require('240'),
      gOPD = Object.getOwnPropertyDescriptor;

  exports.f = $__require('16a') ? gOPD : function getOwnPropertyDescriptor(O, P) {
    O = toIObject(O);
    P = toPrimitive(P, true);
    if (IE8_DOM_DEFINE) try {
      return gOPD(O, P);
    } catch (e) {/* empty */}
    if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);
  };
});
$__System.registerDynamic('18f', ['241', '23b', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 19.1.2.14 / 15.2.3.14 Object.keys(O)
  var $keys = $__require('241'),
      enumBugKeys = $__require('23b');

  module.exports = Object.keys || function keys(O) {
    return $keys(O, enumBugKeys);
  };
});
$__System.registerDynamic("196", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  var hasOwnProperty = {}.hasOwnProperty;
  module.exports = function (it, key) {
    return hasOwnProperty.call(it, key);
  };
});
$__System.registerDynamic("224", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  var toString = {}.toString;

  module.exports = function (it) {
    return toString.call(it).slice(8, -1);
  };
});
$__System.registerDynamic('193', ['224', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // fallback for non-array-like ES3 and non-enumerable old V8 strings
  var cof = $__require('224');
  module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
    return cof(it) == 'String' ? it.split('') : Object(it);
  };
});
$__System.registerDynamic("170", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  // 7.2.1 RequireObjectCoercible(argument)
  module.exports = function (it) {
    if (it == undefined) throw TypeError("Can't call method on  " + it);
    return it;
  };
});
$__System.registerDynamic('231', ['193', '170', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // to indexed object, toObject with fallback for non-array-like ES3 strings
  var IObject = $__require('193'),
      defined = $__require('170');
  module.exports = function (it) {
    return IObject(defined(it));
  };
});
$__System.registerDynamic('19b', ['229', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 7.1.15 ToLength
  var toInteger = $__require('229'),
      min = Math.min;
  module.exports = function (it) {
    return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
  };
});
$__System.registerDynamic("229", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  // 7.1.4 ToInteger
  var ceil = Math.ceil,
      floor = Math.floor;
  module.exports = function (it) {
    return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
  };
});
$__System.registerDynamic('242', ['229', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var toInteger = $__require('229'),
      max = Math.max,
      min = Math.min;
  module.exports = function (index, length) {
    index = toInteger(index);
    return index < 0 ? max(index + length, 0) : min(index, length);
  };
});
$__System.registerDynamic('243', ['231', '19b', '242', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // false -> Array#indexOf
  // true  -> Array#includes
  var toIObject = $__require('231'),
      toLength = $__require('19b'),
      toIndex = $__require('242');
  module.exports = function (IS_INCLUDES) {
    return function ($this, el, fromIndex) {
      var O = toIObject($this),
          length = toLength(O.length),
          index = toIndex(fromIndex, length),
          value;
      // Array#includes uses SameValueZero equality algorithm
      if (IS_INCLUDES && el != el) while (length > index) {
        value = O[index++];
        if (value != value) return true;
        // Array#toIndex ignores holes, Array#includes - not
      } else for (; length > index; index++) if (IS_INCLUDES || index in O) {
        if (O[index] === el) return IS_INCLUDES || index || 0;
      }return !IS_INCLUDES && -1;
    };
  };
});
$__System.registerDynamic('22e', ['244', '236', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var shared = $__require('244')('keys'),
      uid = $__require('236');
  module.exports = function (key) {
    return shared[key] || (shared[key] = uid(key));
  };
});
$__System.registerDynamic('241', ['196', '231', '243', '22e', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var has = $__require('196'),
      toIObject = $__require('231'),
      arrayIndexOf = $__require('243')(false),
      IE_PROTO = $__require('22e')('IE_PROTO');

  module.exports = function (object, names) {
    var O = toIObject(object),
        i = 0,
        result = [],
        key;
    for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);
    // Don't enum bug & hidden keys
    while (names.length > i) if (has(O, key = names[i++])) {
      ~arrayIndexOf(result, key) || result.push(key);
    }
    return result;
  };
});
$__System.registerDynamic('23b', ['c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // IE 8- don't enum bug keys
  module.exports = 'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'.split(',');
});
$__System.registerDynamic('23e', ['241', '23b', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
  var $keys = $__require('241'),
      hiddenKeys = $__require('23b').concat('length', 'prototype');

  exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
    return $keys(O, hiddenKeys);
  };
});
$__System.registerDynamic("191", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.f = {}.propertyIsEnumerable;
});
$__System.registerDynamic("190", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  exports.f = Object.getOwnPropertySymbols;
});
$__System.registerDynamic("22c", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  module.exports = function (bitmap, value) {
    return {
      enumerable: !(bitmap & 1),
      configurable: !(bitmap & 2),
      writable: !(bitmap & 4),
      value: value
    };
  };
});
$__System.registerDynamic('197', ['169', '22c', '16a', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var dP = $__require('169'),
      createDesc = $__require('22c');
  module.exports = $__require('16a') ? function (object, key, value) {
    return dP.f(object, key, createDesc(1, value));
  } : function (object, key, value) {
    object[key] = value;
    return object;
  };
});
$__System.registerDynamic('1b0', ['168', '196', '16a', 'cb', '1a2', '174', '194', '244', '1a0', '236', '16b', '233', '245', '237', '238', '19e', '110', '231', '23f', '22c', '16d', '23d', '112', '169', '18f', '23e', '191', '190', '22f', '197', 'c'], true, function ($__require, exports, module) {
  'use strict';
  // ECMAScript 6 symbols shim

  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var global = $__require('168'),
      has = $__require('196'),
      DESCRIPTORS = $__require('16a'),
      $export = $__require('cb'),
      redefine = $__require('1a2'),
      META = $__require('174').KEY,
      $fails = $__require('194'),
      shared = $__require('244'),
      setToStringTag = $__require('1a0'),
      uid = $__require('236'),
      wks = $__require('16b'),
      wksExt = $__require('233'),
      wksDefine = $__require('245'),
      keyOf = $__require('237'),
      enumKeys = $__require('238'),
      isArray = $__require('19e'),
      anObject = $__require('110'),
      toIObject = $__require('231'),
      toPrimitive = $__require('23f'),
      createDesc = $__require('22c'),
      _create = $__require('16d'),
      gOPNExt = $__require('23d'),
      $GOPD = $__require('112'),
      $DP = $__require('169'),
      $keys = $__require('18f'),
      gOPD = $GOPD.f,
      dP = $DP.f,
      gOPN = gOPNExt.f,
      $Symbol = global.Symbol,
      $JSON = global.JSON,
      _stringify = $JSON && $JSON.stringify,
      PROTOTYPE = 'prototype',
      HIDDEN = wks('_hidden'),
      TO_PRIMITIVE = wks('toPrimitive'),
      isEnum = {}.propertyIsEnumerable,
      SymbolRegistry = shared('symbol-registry'),
      AllSymbols = shared('symbols'),
      OPSymbols = shared('op-symbols'),
      ObjectProto = Object[PROTOTYPE],
      USE_NATIVE = typeof $Symbol == 'function',
      QObject = global.QObject;
  // Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
  var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;

  // fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
  var setSymbolDesc = DESCRIPTORS && $fails(function () {
    return _create(dP({}, 'a', {
      get: function () {
        return dP(this, 'a', { value: 7 }).a;
      }
    })).a != 7;
  }) ? function (it, key, D) {
    var protoDesc = gOPD(ObjectProto, key);
    if (protoDesc) delete ObjectProto[key];
    dP(it, key, D);
    if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);
  } : dP;

  var wrap = function (tag) {
    var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);
    sym._k = tag;
    return sym;
  };

  var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function (it) {
    return typeof it == 'symbol';
  } : function (it) {
    return it instanceof $Symbol;
  };

  var $defineProperty = function defineProperty(it, key, D) {
    if (it === ObjectProto) $defineProperty(OPSymbols, key, D);
    anObject(it);
    key = toPrimitive(key, true);
    anObject(D);
    if (has(AllSymbols, key)) {
      if (!D.enumerable) {
        if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));
        it[HIDDEN][key] = true;
      } else {
        if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
        D = _create(D, { enumerable: createDesc(0, false) });
      }return setSymbolDesc(it, key, D);
    }return dP(it, key, D);
  };
  var $defineProperties = function defineProperties(it, P) {
    anObject(it);
    var keys = enumKeys(P = toIObject(P)),
        i = 0,
        l = keys.length,
        key;
    while (l > i) $defineProperty(it, key = keys[i++], P[key]);
    return it;
  };
  var $create = function create(it, P) {
    return P === undefined ? _create(it) : $defineProperties(_create(it), P);
  };
  var $propertyIsEnumerable = function propertyIsEnumerable(key) {
    var E = isEnum.call(this, key = toPrimitive(key, true));
    if (this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return false;
    return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
  };
  var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {
    it = toIObject(it);
    key = toPrimitive(key, true);
    if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;
    var D = gOPD(it, key);
    if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
    return D;
  };
  var $getOwnPropertyNames = function getOwnPropertyNames(it) {
    var names = gOPN(toIObject(it)),
        result = [],
        i = 0,
        key;
    while (names.length > i) {
      if (!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);
    }return result;
  };
  var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {
    var IS_OP = it === ObjectProto,
        names = gOPN(IS_OP ? OPSymbols : toIObject(it)),
        result = [],
        i = 0,
        key;
    while (names.length > i) {
      if (has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true)) result.push(AllSymbols[key]);
    }return result;
  };

  // 19.4.1.1 Symbol([description])
  if (!USE_NATIVE) {
    $Symbol = function Symbol() {
      if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
      var tag = uid(arguments.length > 0 ? arguments[0] : undefined);
      var $set = function (value) {
        if (this === ObjectProto) $set.call(OPSymbols, value);
        if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
        setSymbolDesc(this, tag, createDesc(1, value));
      };
      if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, { configurable: true, set: $set });
      return wrap(tag);
    };
    redefine($Symbol[PROTOTYPE], 'toString', function toString() {
      return this._k;
    });

    $GOPD.f = $getOwnPropertyDescriptor;
    $DP.f = $defineProperty;
    $__require('23e').f = gOPNExt.f = $getOwnPropertyNames;
    $__require('191').f = $propertyIsEnumerable;
    $__require('190').f = $getOwnPropertySymbols;

    if (DESCRIPTORS && !$__require('22f')) {
      redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
    }

    wksExt.f = function (name) {
      return wrap(wks(name));
    };
  }

  $export($export.G + $export.W + $export.F * !USE_NATIVE, { Symbol: $Symbol });

  for (var symbols =
  // 19.4.2.2, 19.4.2.3, 19.4.2.4, 19.4.2.6, 19.4.2.8, 19.4.2.9, 19.4.2.10, 19.4.2.11, 19.4.2.12, 19.4.2.13, 19.4.2.14
  'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'.split(','), i = 0; symbols.length > i;) wks(symbols[i++]);

  for (var symbols = $keys(wks.store), i = 0; symbols.length > i;) wksDefine(symbols[i++]);

  $export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
    // 19.4.2.1 Symbol.for(key)
    'for': function (key) {
      return has(SymbolRegistry, key += '') ? SymbolRegistry[key] : SymbolRegistry[key] = $Symbol(key);
    },
    // 19.4.2.5 Symbol.keyFor(sym)
    keyFor: function keyFor(key) {
      if (isSymbol(key)) return keyOf(SymbolRegistry, key);
      throw TypeError(key + ' is not a symbol!');
    },
    useSetter: function () {
      setter = true;
    },
    useSimple: function () {
      setter = false;
    }
  });

  $export($export.S + $export.F * !USE_NATIVE, 'Object', {
    // 19.1.2.2 Object.create(O [, Properties])
    create: $create,
    // 19.1.2.4 Object.defineProperty(O, P, Attributes)
    defineProperty: $defineProperty,
    // 19.1.2.3 Object.defineProperties(O, Properties)
    defineProperties: $defineProperties,
    // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
    getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
    // 19.1.2.7 Object.getOwnPropertyNames(O)
    getOwnPropertyNames: $getOwnPropertyNames,
    // 19.1.2.8 Object.getOwnPropertySymbols(O)
    getOwnPropertySymbols: $getOwnPropertySymbols
  });

  // 24.3.2 JSON.stringify(value [, replacer [, space]])
  $JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function () {
    var S = $Symbol();
    // MS Edge converts symbol values to JSON as {}
    // WebKit converts symbol values to JSON as null
    // V8 throws on boxed symbols
    return _stringify([S]) != '[null]' || _stringify({ a: S }) != '{}' || _stringify(Object(S)) != '{}';
  })), 'JSON', {
    stringify: function stringify(it) {
      if (it === undefined || isSymbol(it)) return; // IE8 returns string on undefined
      var args = [it],
          i = 1,
          replacer,
          $replacer;
      while (arguments.length > i) args.push(arguments[i++]);
      replacer = args[1];
      if (typeof replacer == 'function') $replacer = replacer;
      if ($replacer || !isArray(replacer)) replacer = function (key, value) {
        if ($replacer) value = $replacer.call(this, key, value);
        if (!isSymbol(value)) return value;
      };
      args[1] = replacer;
      return _stringify.apply($JSON, args);
    }
  });

  // 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)
  $Symbol[PROTOTYPE][TO_PRIMITIVE] || $__require('197')($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
  // 19.4.3.5 Symbol.prototype[@@toStringTag]
  setToStringTag($Symbol, 'Symbol');
  // 20.2.1.9 Math[@@toStringTag]
  setToStringTag(Math, 'Math', true);
  // 24.3.3 JSON[@@toStringTag]
  setToStringTag(global.JSON, 'JSON', true);
});
$__System.registerDynamic("37", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
});
$__System.registerDynamic('246', ['245', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('245')('asyncIterator');
});
$__System.registerDynamic("22f", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  module.exports = true;
});
$__System.registerDynamic('244', ['168', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var global = $__require('168'),
      SHARED = '__core-js_shared__',
      store = global[SHARED] || (global[SHARED] = {});
  module.exports = function (key) {
    return store[key] || (store[key] = {});
  };
});
$__System.registerDynamic('236', ['c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var id = 0,
      px = Math.random();
  module.exports = function (key) {
    return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
  };
});
$__System.registerDynamic('16b', ['244', '236', '168', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var store = $__require('244')('wks'),
      uid = $__require('236'),
      Symbol = $__require('168').Symbol,
      USE_SYMBOL = typeof Symbol == 'function';

  var $exports = module.exports = function (name) {
    return store[name] || (store[name] = USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));
  };

  $exports.store = store;
});
$__System.registerDynamic('233', ['16b', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  exports.f = $__require('16b');
});
$__System.registerDynamic('110', ['10f', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var isObject = $__require('10f');
  module.exports = function (it) {
    if (!isObject(it)) throw TypeError(it + ' is not an object!');
    return it;
  };
});
$__System.registerDynamic('168', ['c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
  var global = module.exports = typeof window != 'undefined' && window.Math == Math ? window : typeof self != 'undefined' && self.Math == Math ? self : Function('return this')();
  if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef
});
$__System.registerDynamic('23c', ['10f', '168', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var isObject = $__require('10f'),
      document = $__require('168').document
  // in old IE typeof document.createElement is 'object'
  ,
      is = isObject(document) && isObject(document.createElement);
  module.exports = function (it) {
    return is ? document.createElement(it) : {};
  };
});
$__System.registerDynamic('240', ['16a', '194', '23c', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  module.exports = !$__require('16a') && !$__require('194')(function () {
    return Object.defineProperty($__require('23c')('div'), 'a', { get: function () {
        return 7;
      } }).a != 7;
  });
});
$__System.registerDynamic('10f', ['c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  module.exports = function (it) {
    return typeof it === 'object' ? it !== null : typeof it === 'function';
  };
});
$__System.registerDynamic('23f', ['10f', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // 7.1.1 ToPrimitive(input [, PreferredType])
  var isObject = $__require('10f');
  // instead of the ES6 spec version, we didn't implement @@toPrimitive case
  // and the second argument - flag - preferred type is a string
  module.exports = function (it, S) {
    if (!isObject(it)) return it;
    var fn, val;
    if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
    if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
    if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
    throw TypeError("Can't convert object to primitive value");
  };
});
$__System.registerDynamic("194", ["c"], true, function ($__require, exports, module) {
  var process = $__require("c");
  var global = this || self,
      GLOBAL = global;
  module.exports = function (exec) {
    try {
      return !!exec();
    } catch (e) {
      return true;
    }
  };
});
$__System.registerDynamic('16a', ['194', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  // Thank's IE8 for his funny defineProperty
  module.exports = !$__require('194')(function () {
    return Object.defineProperty({}, 'a', { get: function () {
        return 7;
      } }).a != 7;
  });
});
$__System.registerDynamic('169', ['110', '240', '23f', '16a', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var anObject = $__require('110'),
      IE8_DOM_DEFINE = $__require('240'),
      toPrimitive = $__require('23f'),
      dP = Object.defineProperty;

  exports.f = $__require('16a') ? Object.defineProperty : function defineProperty(O, P, Attributes) {
    anObject(O);
    P = toPrimitive(P, true);
    anObject(Attributes);
    if (IE8_DOM_DEFINE) try {
      return dP(O, P, Attributes);
    } catch (e) {/* empty */}
    if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
    if ('value' in Attributes) O[P] = Attributes.value;
    return O;
  };
});
$__System.registerDynamic('245', ['168', '39', '22f', '233', '169', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var global = $__require('168'),
      core = $__require('39'),
      LIBRARY = $__require('22f'),
      wksExt = $__require('233'),
      defineProperty = $__require('169').f;
  module.exports = function (name) {
    var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
    if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, { value: wksExt.f(name) });
  };
});
$__System.registerDynamic('247', ['245', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('245')('observable');
});
$__System.registerDynamic('39', ['c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  var core = module.exports = { version: '2.4.0' };
  if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef
});
$__System.registerDynamic("@system-env", [], true, function() {
  return {
    "default": true
  };
});

$__System.registerDynamic('c', ['@system-env'], true, function ($__require, exports, module) {
    var global = this || self,
        GLOBAL = global;
    // From https://github.com/defunctzombie/node-process/blob/master/browser.js
    // shim for using process in browser

    var productionEnv = $__require('@system-env').production;

    var process = module.exports = {};
    var queue = [];
    var draining = false;
    var currentQueue;
    var queueIndex = -1;

    function cleanUpNextTick() {
        draining = false;
        if (currentQueue.length) {
            queue = currentQueue.concat(queue);
        } else {
            queueIndex = -1;
        }
        if (queue.length) {
            drainQueue();
        }
    }

    function drainQueue() {
        if (draining) {
            return;
        }
        var timeout = setTimeout(cleanUpNextTick);
        draining = true;

        var len = queue.length;
        while (len) {
            currentQueue = queue;
            queue = [];
            while (++queueIndex < len) {
                if (currentQueue) {
                    currentQueue[queueIndex].run();
                }
            }
            queueIndex = -1;
            len = queue.length;
        }
        currentQueue = null;
        draining = false;
        clearTimeout(timeout);
    }

    process.nextTick = function (fun) {
        var args = new Array(arguments.length - 1);
        if (arguments.length > 1) {
            for (var i = 1; i < arguments.length; i++) {
                args[i - 1] = arguments[i];
            }
        }
        queue.push(new Item(fun, args));
        if (queue.length === 1 && !draining) {
            setTimeout(drainQueue, 0);
        }
    };

    // v8 likes predictible objects
    function Item(fun, array) {
        this.fun = fun;
        this.array = array;
    }
    Item.prototype.run = function () {
        this.fun.apply(null, this.array);
    };
    process.title = 'browser';
    process.browser = true;
    process.env = {
        NODE_ENV: productionEnv ? 'production' : 'development'
    };
    process.argv = [];
    process.version = ''; // empty string to avoid regexp issues
    process.versions = {};

    function noop() {}

    process.on = noop;
    process.addListener = noop;
    process.once = noop;
    process.off = noop;
    process.removeListener = noop;
    process.removeAllListeners = noop;
    process.emit = noop;

    process.binding = function (name) {
        throw new Error('process.binding is not supported');
    };

    process.cwd = function () {
        return '/';
    };
    process.chdir = function (dir) {
        throw new Error('process.chdir is not supported');
    };
    process.umask = function () {
        return 0;
    };
});
$__System.registerDynamic('248', ['1b0', '37', '246', '247', '39', 'c'], true, function ($__require, exports, module) {
  var process = $__require('c');
  var global = this || self,
      GLOBAL = global;
  $__require('1b0');
  $__require('37');
  $__require('246');
  $__require('247');
  module.exports = $__require('39').Symbol;
});
$__System.registerDynamic("d8", ["248"], true, function ($__require, exports, module) {
  var global = this || self,
      GLOBAL = global;
  module.exports = { "default": $__require("248"), __esModule: true };
});
$__System.registerDynamic("32", ["234", "d8"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  var _iterator = $__require("234");

  var _iterator2 = _interopRequireDefault(_iterator);

  var _symbol = $__require("d8");

  var _symbol2 = _interopRequireDefault(_symbol);

  var _typeof = typeof _symbol2.default === "function" && typeof _iterator2.default === "symbol" ? function (obj) {
    return typeof obj;
  } : function (obj) {
    return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj;
  };

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  exports.default = typeof _symbol2.default === "function" && _typeof(_iterator2.default) === "symbol" ? function (obj) {
    return typeof obj === "undefined" ? "undefined" : _typeof(obj);
  } : function (obj) {
    return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj === "undefined" ? "undefined" : _typeof(obj);
  };
});
$__System.registerDynamic("21d", ["17", "60", "32", "11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.DEPRECATED_KEYS = exports.BUILDER_KEYS = exports.NODE_FIELDS = exports.ALIAS_KEYS = exports.VISITOR_KEYS = undefined;

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _stringify = $__require("60");

  var _stringify2 = _interopRequireDefault(_stringify);

  var _typeof2 = $__require("32");

  var _typeof3 = _interopRequireDefault(_typeof2);

  exports.assertEach = assertEach;
  exports.assertOneOf = assertOneOf;
  exports.assertNodeType = assertNodeType;
  exports.assertNodeOrValueType = assertNodeOrValueType;
  exports.assertValueType = assertValueType;
  exports.chain = chain;
  exports.default = defineType;

  var _index = $__require("11");

  var t = _interopRequireWildcard(_index);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var VISITOR_KEYS = exports.VISITOR_KEYS = {};
  var ALIAS_KEYS = exports.ALIAS_KEYS = {};
  var NODE_FIELDS = exports.NODE_FIELDS = {};
  var BUILDER_KEYS = exports.BUILDER_KEYS = {};
  var DEPRECATED_KEYS = exports.DEPRECATED_KEYS = {};

  function getType(val) {
    if (Array.isArray(val)) {
      return "array";
    } else if (val === null) {
      return "null";
    } else if (val === undefined) {
      return "undefined";
    } else {
      return typeof val === "undefined" ? "undefined" : (0, _typeof3.default)(val);
    }
  }

  function assertEach(callback) {
    function validator(node, key, val) {
      if (!Array.isArray(val)) return;

      for (var i = 0; i < val.length; i++) {
        callback(node, key + "[" + i + "]", val[i]);
      }
    }
    validator.each = callback;
    return validator;
  }

  function assertOneOf() {
    for (var _len = arguments.length, vals = Array(_len), _key = 0; _key < _len; _key++) {
      vals[_key] = arguments[_key];
    }

    function validate(node, key, val) {
      if (vals.indexOf(val) < 0) {
        throw new TypeError("Property " + key + " expected value to be one of " + (0, _stringify2.default)(vals) + " but got " + (0, _stringify2.default)(val));
      }
    }

    validate.oneOf = vals;

    return validate;
  }

  function assertNodeType() {
    for (var _len2 = arguments.length, types = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
      types[_key2] = arguments[_key2];
    }

    function validate(node, key, val) {
      var valid = false;

      for (var _iterator = types, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var type = _ref;

        if (t.is(type, val)) {
          valid = true;
          break;
        }
      }

      if (!valid) {
        throw new TypeError("Property " + key + " of " + node.type + " expected node to be of a type " + (0, _stringify2.default)(types) + " " + ("but instead got " + (0, _stringify2.default)(val && val.type)));
      }
    }

    validate.oneOfNodeTypes = types;

    return validate;
  }

  function assertNodeOrValueType() {
    for (var _len3 = arguments.length, types = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
      types[_key3] = arguments[_key3];
    }

    function validate(node, key, val) {
      var valid = false;

      for (var _iterator2 = types, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var type = _ref2;

        if (getType(val) === type || t.is(type, val)) {
          valid = true;
          break;
        }
      }

      if (!valid) {
        throw new TypeError("Property " + key + " of " + node.type + " expected node to be of a type " + (0, _stringify2.default)(types) + " " + ("but instead got " + (0, _stringify2.default)(val && val.type)));
      }
    }

    validate.oneOfNodeOrValueTypes = types;

    return validate;
  }

  function assertValueType(type) {
    function validate(node, key, val) {
      var valid = getType(val) === type;

      if (!valid) {
        throw new TypeError("Property " + key + " expected type of " + type + " but got " + getType(val));
      }
    }

    validate.type = type;

    return validate;
  }

  function chain() {
    for (var _len4 = arguments.length, fns = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
      fns[_key4] = arguments[_key4];
    }

    function validate() {
      for (var _iterator3 = fns, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
        var _ref3;

        if (_isArray3) {
          if (_i3 >= _iterator3.length) break;
          _ref3 = _iterator3[_i3++];
        } else {
          _i3 = _iterator3.next();
          if (_i3.done) break;
          _ref3 = _i3.value;
        }

        var fn = _ref3;

        fn.apply(undefined, arguments);
      }
    }
    validate.chainOf = fns;
    return validate;
  }

  function defineType(type) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    var inherits = opts.inherits && store[opts.inherits] || {};

    opts.fields = opts.fields || inherits.fields || {};
    opts.visitor = opts.visitor || inherits.visitor || [];
    opts.aliases = opts.aliases || inherits.aliases || [];
    opts.builder = opts.builder || inherits.builder || opts.visitor || [];

    if (opts.deprecatedAlias) {
      DEPRECATED_KEYS[opts.deprecatedAlias] = type;
    }

    for (var _iterator4 = opts.visitor.concat(opts.builder), _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
      var _ref4;

      if (_isArray4) {
        if (_i4 >= _iterator4.length) break;
        _ref4 = _iterator4[_i4++];
      } else {
        _i4 = _iterator4.next();
        if (_i4.done) break;
        _ref4 = _i4.value;
      }

      var _key5 = _ref4;

      opts.fields[_key5] = opts.fields[_key5] || {};
    }

    for (var key in opts.fields) {
      var field = opts.fields[key];

      if (opts.builder.indexOf(key) === -1) {
        field.optional = true;
      }
      if (field.default === undefined) {
        field.default = null;
      } else if (!field.validate) {
        field.validate = assertValueType(getType(field.default));
      }
    }

    VISITOR_KEYS[type] = opts.visitor;
    BUILDER_KEYS[type] = opts.builder;
    NODE_FIELDS[type] = opts.fields;
    ALIAS_KEYS[type] = opts.aliases;

    store[type] = opts;
  }

  var store = {};
});
$__System.registerDynamic("249", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.isReactComponent = undefined;
  exports.isCompatTag = isCompatTag;
  exports.buildChildren = buildChildren;

  var _index = $__require("11");

  var t = _interopRequireWildcard(_index);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  var isReactComponent = exports.isReactComponent = t.buildMatchMemberExpression("React.Component");

  function isCompatTag(tagName) {
    return !!tagName && /^[a-z]|\-/.test(tagName);
  }

  function cleanJSXElementLiteralChild(child, args) {
    var lines = child.value.split(/\r\n|\n|\r/);

    var lastNonEmptyLine = 0;

    for (var i = 0; i < lines.length; i++) {
      if (lines[i].match(/[^ \t]/)) {
        lastNonEmptyLine = i;
      }
    }

    var str = "";

    for (var _i = 0; _i < lines.length; _i++) {
      var line = lines[_i];

      var isFirstLine = _i === 0;
      var isLastLine = _i === lines.length - 1;
      var isLastNonEmptyLine = _i === lastNonEmptyLine;

      var trimmedLine = line.replace(/\t/g, " ");

      if (!isFirstLine) {
        trimmedLine = trimmedLine.replace(/^[ ]+/, "");
      }

      if (!isLastLine) {
        trimmedLine = trimmedLine.replace(/[ ]+$/, "");
      }

      if (trimmedLine) {
        if (!isLastNonEmptyLine) {
          trimmedLine += " ";
        }

        str += trimmedLine;
      }
    }

    if (str) args.push(t.stringLiteral(str));
  }

  function buildChildren(node) {
    var elems = [];

    for (var i = 0; i < node.children.length; i++) {
      var child = node.children[i];

      if (t.isJSXText(child)) {
        cleanJSXElementLiteralChild(child, elems);
        continue;
      }

      if (t.isJSXExpressionContainer(child)) child = child.expression;
      if (t.isJSXEmptyExpression(child)) continue;

      elems.push(child);
    }

    return elems;
  }
});
$__System.registerDynamic("11", ["1b1", "17", "15", "60", "1bc", "1b7", "1bb", "1c3", "1c4", "1c5", "d3", "219", "223", "21d", "249"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.createTypeAnnotationBasedOnTypeof = exports.removeTypeDuplicates = exports.createUnionTypeAnnotation = exports.valueToNode = exports.toBlock = exports.toExpression = exports.toStatement = exports.toBindingIdentifierName = exports.toIdentifier = exports.toKeyAlias = exports.toSequenceExpression = exports.toComputedKey = exports.isNodesEquivalent = exports.isImmutable = exports.isScope = exports.isSpecifierDefault = exports.isVar = exports.isBlockScoped = exports.isLet = exports.isValidIdentifier = exports.isReferenced = exports.isBinding = exports.getOuterBindingIdentifiers = exports.getBindingIdentifiers = exports.TYPES = exports.react = exports.DEPRECATED_KEYS = exports.BUILDER_KEYS = exports.NODE_FIELDS = exports.ALIAS_KEYS = exports.VISITOR_KEYS = exports.NOT_LOCAL_BINDING = exports.BLOCK_SCOPED_SYMBOL = exports.INHERIT_KEYS = exports.UNARY_OPERATORS = exports.STRING_UNARY_OPERATORS = exports.NUMBER_UNARY_OPERATORS = exports.BOOLEAN_UNARY_OPERATORS = exports.BINARY_OPERATORS = exports.NUMBER_BINARY_OPERATORS = exports.BOOLEAN_BINARY_OPERATORS = exports.COMPARISON_BINARY_OPERATORS = exports.EQUALITY_BINARY_OPERATORS = exports.BOOLEAN_NUMBER_BINARY_OPERATORS = exports.UPDATE_OPERATORS = exports.LOGICAL_OPERATORS = exports.COMMENT_KEYS = exports.FOR_INIT_KEYS = exports.FLATTENABLE_KEYS = exports.STATEMENT_OR_BLOCK_KEYS = undefined;

  var _getOwnPropertySymbols = $__require("1b1");

  var _getOwnPropertySymbols2 = _interopRequireDefault(_getOwnPropertySymbols);

  var _getIterator2 = $__require("17");

  var _getIterator3 = _interopRequireDefault(_getIterator2);

  var _keys = $__require("15");

  var _keys2 = _interopRequireDefault(_keys);

  var _stringify = $__require("60");

  var _stringify2 = _interopRequireDefault(_stringify);

  var _constants = $__require("1bc");

  Object.defineProperty(exports, "STATEMENT_OR_BLOCK_KEYS", {
    enumerable: true,
    get: function get() {
      return _constants.STATEMENT_OR_BLOCK_KEYS;
    }
  });
  Object.defineProperty(exports, "FLATTENABLE_KEYS", {
    enumerable: true,
    get: function get() {
      return _constants.FLATTENABLE_KEYS;
    }
  });
  Object.defineProperty(exports, "FOR_INIT_KEYS", {
    enumerable: true,
    get: function get() {
      return _constants.FOR_INIT_KEYS;
    }
  });
  Object.defineProperty(exports, "COMMENT_KEYS", {
    enumerable: true,
    get: function get() {
      return _constants.COMMENT_KEYS;
    }
  });
  Object.defineProperty(exports, "LOGICAL_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.LOGICAL_OPERATORS;
    }
  });
  Object.defineProperty(exports, "UPDATE_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.UPDATE_OPERATORS;
    }
  });
  Object.defineProperty(exports, "BOOLEAN_NUMBER_BINARY_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.BOOLEAN_NUMBER_BINARY_OPERATORS;
    }
  });
  Object.defineProperty(exports, "EQUALITY_BINARY_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.EQUALITY_BINARY_OPERATORS;
    }
  });
  Object.defineProperty(exports, "COMPARISON_BINARY_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.COMPARISON_BINARY_OPERATORS;
    }
  });
  Object.defineProperty(exports, "BOOLEAN_BINARY_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.BOOLEAN_BINARY_OPERATORS;
    }
  });
  Object.defineProperty(exports, "NUMBER_BINARY_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.NUMBER_BINARY_OPERATORS;
    }
  });
  Object.defineProperty(exports, "BINARY_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.BINARY_OPERATORS;
    }
  });
  Object.defineProperty(exports, "BOOLEAN_UNARY_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.BOOLEAN_UNARY_OPERATORS;
    }
  });
  Object.defineProperty(exports, "NUMBER_UNARY_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.NUMBER_UNARY_OPERATORS;
    }
  });
  Object.defineProperty(exports, "STRING_UNARY_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.STRING_UNARY_OPERATORS;
    }
  });
  Object.defineProperty(exports, "UNARY_OPERATORS", {
    enumerable: true,
    get: function get() {
      return _constants.UNARY_OPERATORS;
    }
  });
  Object.defineProperty(exports, "INHERIT_KEYS", {
    enumerable: true,
    get: function get() {
      return _constants.INHERIT_KEYS;
    }
  });
  Object.defineProperty(exports, "BLOCK_SCOPED_SYMBOL", {
    enumerable: true,
    get: function get() {
      return _constants.BLOCK_SCOPED_SYMBOL;
    }
  });
  Object.defineProperty(exports, "NOT_LOCAL_BINDING", {
    enumerable: true,
    get: function get() {
      return _constants.NOT_LOCAL_BINDING;
    }
  });
  exports.is = is;
  exports.isType = isType;
  exports.validate = validate;
  exports.shallowEqual = shallowEqual;
  exports.appendToMemberExpression = appendToMemberExpression;
  exports.prependToMemberExpression = prependToMemberExpression;
  exports.ensureBlock = ensureBlock;
  exports.clone = clone;
  exports.cloneWithoutLoc = cloneWithoutLoc;
  exports.cloneDeep = cloneDeep;
  exports.buildMatchMemberExpression = buildMatchMemberExpression;
  exports.removeComments = removeComments;
  exports.inheritsComments = inheritsComments;
  exports.inheritTrailingComments = inheritTrailingComments;
  exports.inheritLeadingComments = inheritLeadingComments;
  exports.inheritInnerComments = inheritInnerComments;
  exports.inherits = inherits;
  exports.assertNode = assertNode;
  exports.isNode = isNode;
  exports.traverseFast = traverseFast;
  exports.removeProperties = removeProperties;
  exports.removePropertiesDeep = removePropertiesDeep;

  var _retrievers = $__require("1b7");

  Object.defineProperty(exports, "getBindingIdentifiers", {
    enumerable: true,
    get: function get() {
      return _retrievers.getBindingIdentifiers;
    }
  });
  Object.defineProperty(exports, "getOuterBindingIdentifiers", {
    enumerable: true,
    get: function get() {
      return _retrievers.getOuterBindingIdentifiers;
    }
  });

  var _validators = $__require("1bb");

  Object.defineProperty(exports, "isBinding", {
    enumerable: true,
    get: function get() {
      return _validators.isBinding;
    }
  });
  Object.defineProperty(exports, "isReferenced", {
    enumerable: true,
    get: function get() {
      return _validators.isReferenced;
    }
  });
  Object.defineProperty(exports, "isValidIdentifier", {
    enumerable: true,
    get: function get() {
      return _validators.isValidIdentifier;
    }
  });
  Object.defineProperty(exports, "isLet", {
    enumerable: true,
    get: function get() {
      return _validators.isLet;
    }
  });
  Object.defineProperty(exports, "isBlockScoped", {
    enumerable: true,
    get: function get() {
      return _validators.isBlockScoped;
    }
  });
  Object.defineProperty(exports, "isVar", {
    enumerable: true,
    get: function get() {
      return _validators.isVar;
    }
  });
  Object.defineProperty(exports, "isSpecifierDefault", {
    enumerable: true,
    get: function get() {
      return _validators.isSpecifierDefault;
    }
  });
  Object.defineProperty(exports, "isScope", {
    enumerable: true,
    get: function get() {
      return _validators.isScope;
    }
  });
  Object.defineProperty(exports, "isImmutable", {
    enumerable: true,
    get: function get() {
      return _validators.isImmutable;
    }
  });
  Object.defineProperty(exports, "isNodesEquivalent", {
    enumerable: true,
    get: function get() {
      return _validators.isNodesEquivalent;
    }
  });

  var _converters = $__require("1c3");

  Object.defineProperty(exports, "toComputedKey", {
    enumerable: true,
    get: function get() {
      return _converters.toComputedKey;
    }
  });
  Object.defineProperty(exports, "toSequenceExpression", {
    enumerable: true,
    get: function get() {
      return _converters.toSequenceExpression;
    }
  });
  Object.defineProperty(exports, "toKeyAlias", {
    enumerable: true,
    get: function get() {
      return _converters.toKeyAlias;
    }
  });
  Object.defineProperty(exports, "toIdentifier", {
    enumerable: true,
    get: function get() {
      return _converters.toIdentifier;
    }
  });
  Object.defineProperty(exports, "toBindingIdentifierName", {
    enumerable: true,
    get: function get() {
      return _converters.toBindingIdentifierName;
    }
  });
  Object.defineProperty(exports, "toStatement", {
    enumerable: true,
    get: function get() {
      return _converters.toStatement;
    }
  });
  Object.defineProperty(exports, "toExpression", {
    enumerable: true,
    get: function get() {
      return _converters.toExpression;
    }
  });
  Object.defineProperty(exports, "toBlock", {
    enumerable: true,
    get: function get() {
      return _converters.toBlock;
    }
  });
  Object.defineProperty(exports, "valueToNode", {
    enumerable: true,
    get: function get() {
      return _converters.valueToNode;
    }
  });

  var _flow = $__require("1c4");

  Object.defineProperty(exports, "createUnionTypeAnnotation", {
    enumerable: true,
    get: function get() {
      return _flow.createUnionTypeAnnotation;
    }
  });
  Object.defineProperty(exports, "removeTypeDuplicates", {
    enumerable: true,
    get: function get() {
      return _flow.removeTypeDuplicates;
    }
  });
  Object.defineProperty(exports, "createTypeAnnotationBasedOnTypeof", {
    enumerable: true,
    get: function get() {
      return _flow.createTypeAnnotationBasedOnTypeof;
    }
  });

  var _toFastProperties = $__require("1c5");

  var _toFastProperties2 = _interopRequireDefault(_toFastProperties);

  var _clone = $__require("d3");

  var _clone2 = _interopRequireDefault(_clone);

  var _uniq = $__require("219");

  var _uniq2 = _interopRequireDefault(_uniq);

  $__require("223");

  var _definitions = $__require("21d");

  var _react2 = $__require("249");

  var _react = _interopRequireWildcard(_react2);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  var t = exports;

  function registerType(type) {
    var is = t["is" + type];
    if (!is) {
      is = t["is" + type] = function (node, opts) {
        return t.is(type, node, opts);
      };
    }

    t["assert" + type] = function (node, opts) {
      opts = opts || {};
      if (!is(node, opts)) {
        throw new Error("Expected type " + (0, _stringify2.default)(type) + " with option " + (0, _stringify2.default)(opts));
      }
    };
  }

  exports.VISITOR_KEYS = _definitions.VISITOR_KEYS;
  exports.ALIAS_KEYS = _definitions.ALIAS_KEYS;
  exports.NODE_FIELDS = _definitions.NODE_FIELDS;
  exports.BUILDER_KEYS = _definitions.BUILDER_KEYS;
  exports.DEPRECATED_KEYS = _definitions.DEPRECATED_KEYS;
  exports.react = _react;

  for (var type in t.VISITOR_KEYS) {
    registerType(type);
  }

  t.FLIPPED_ALIAS_KEYS = {};

  (0, _keys2.default)(t.ALIAS_KEYS).forEach(function (type) {
    t.ALIAS_KEYS[type].forEach(function (alias) {
      var types = t.FLIPPED_ALIAS_KEYS[alias] = t.FLIPPED_ALIAS_KEYS[alias] || [];
      types.push(type);
    });
  });

  (0, _keys2.default)(t.FLIPPED_ALIAS_KEYS).forEach(function (type) {
    t[type.toUpperCase() + "_TYPES"] = t.FLIPPED_ALIAS_KEYS[type];
    registerType(type);
  });

  var TYPES = exports.TYPES = (0, _keys2.default)(t.VISITOR_KEYS).concat((0, _keys2.default)(t.FLIPPED_ALIAS_KEYS)).concat((0, _keys2.default)(t.DEPRECATED_KEYS));

  function is(type, node, opts) {
    if (!node) return false;

    var matches = isType(node.type, type);
    if (!matches) return false;

    if (typeof opts === "undefined") {
      return true;
    } else {
      return t.shallowEqual(node, opts);
    }
  }

  function isType(nodeType, targetType) {
    if (nodeType === targetType) return true;

    if (t.ALIAS_KEYS[targetType]) return false;

    var aliases = t.FLIPPED_ALIAS_KEYS[targetType];
    if (aliases) {
      if (aliases[0] === nodeType) return true;

      for (var _iterator = aliases, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref;

        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref = _i.value;
        }

        var alias = _ref;

        if (nodeType === alias) return true;
      }
    }

    return false;
  }

  (0, _keys2.default)(t.BUILDER_KEYS).forEach(function (type) {
    var keys = t.BUILDER_KEYS[type];

    function builder() {
      if (arguments.length > keys.length) {
        throw new Error("t." + type + ": Too many arguments passed. Received " + arguments.length + " but can receive " + ("no more than " + keys.length));
      }

      var node = {};
      node.type = type;

      var i = 0;

      for (var _iterator2 = keys, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
        var _ref2;

        if (_isArray2) {
          if (_i2 >= _iterator2.length) break;
          _ref2 = _iterator2[_i2++];
        } else {
          _i2 = _iterator2.next();
          if (_i2.done) break;
          _ref2 = _i2.value;
        }

        var _key = _ref2;

        var field = t.NODE_FIELDS[type][_key];

        var arg = arguments[i++];
        if (arg === undefined) arg = (0, _clone2.default)(field.default);

        node[_key] = arg;
      }

      for (var key in node) {
        validate(node, key, node[key]);
      }

      return node;
    }

    t[type] = builder;
    t[type[0].toLowerCase() + type.slice(1)] = builder;
  });

  var _loop = function _loop(_type) {
    var newType = t.DEPRECATED_KEYS[_type];

    function proxy(fn) {
      return function () {
        console.trace("The node type " + _type + " has been renamed to " + newType);
        return fn.apply(this, arguments);
      };
    }

    t[_type] = t[_type[0].toLowerCase() + _type.slice(1)] = proxy(t[newType]);
    t["is" + _type] = proxy(t["is" + newType]);
    t["assert" + _type] = proxy(t["assert" + newType]);
  };

  for (var _type in t.DEPRECATED_KEYS) {
    _loop(_type);
  }

  function validate(node, key, val) {
    if (!node) return;

    var fields = t.NODE_FIELDS[node.type];
    if (!fields) return;

    var field = fields[key];
    if (!field || !field.validate) return;
    if (field.optional && val == null) return;

    field.validate(node, key, val);
  }

  function shallowEqual(actual, expected) {
    var keys = (0, _keys2.default)(expected);

    for (var _iterator3 = keys, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
      var _ref3;

      if (_isArray3) {
        if (_i3 >= _iterator3.length) break;
        _ref3 = _iterator3[_i3++];
      } else {
        _i3 = _iterator3.next();
        if (_i3.done) break;
        _ref3 = _i3.value;
      }

      var key = _ref3;

      if (actual[key] !== expected[key]) {
        return false;
      }
    }

    return true;
  }

  function appendToMemberExpression(member, append, computed) {
    member.object = t.memberExpression(member.object, member.property, member.computed);
    member.property = append;
    member.computed = !!computed;
    return member;
  }

  function prependToMemberExpression(member, prepend) {
    member.object = t.memberExpression(prepend, member.object);
    return member;
  }

  function ensureBlock(node) {
    var key = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "body";

    return node[key] = t.toBlock(node[key], node);
  }

  function clone(node) {
    if (!node) return node;
    var newNode = {};
    for (var key in node) {
      if (key[0] === "_") continue;
      newNode[key] = node[key];
    }
    return newNode;
  }

  function cloneWithoutLoc(node) {
    var newNode = clone(node);
    delete newNode.loc;
    return newNode;
  }

  function cloneDeep(node) {
    if (!node) return node;
    var newNode = {};

    for (var key in node) {
      if (key[0] === "_") continue;

      var val = node[key];

      if (val) {
        if (val.type) {
          val = t.cloneDeep(val);
        } else if (Array.isArray(val)) {
          val = val.map(t.cloneDeep);
        }
      }

      newNode[key] = val;
    }

    return newNode;
  }

  function buildMatchMemberExpression(match, allowPartial) {
    var parts = match.split(".");

    return function (member) {
      if (!t.isMemberExpression(member)) return false;

      var search = [member];
      var i = 0;

      while (search.length) {
        var node = search.shift();

        if (allowPartial && i === parts.length) {
          return true;
        }

        if (t.isIdentifier(node)) {
          if (parts[i] !== node.name) return false;
        } else if (t.isStringLiteral(node)) {
          if (parts[i] !== node.value) return false;
        } else if (t.isMemberExpression(node)) {
          if (node.computed && !t.isStringLiteral(node.property)) {
            return false;
          } else {
            search.push(node.object);
            search.push(node.property);
            continue;
          }
        } else {
          return false;
        }

        if (++i > parts.length) {
          return false;
        }
      }

      return true;
    };
  }

  function removeComments(node) {
    for (var _iterator4 = t.COMMENT_KEYS, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
      var _ref4;

      if (_isArray4) {
        if (_i4 >= _iterator4.length) break;
        _ref4 = _iterator4[_i4++];
      } else {
        _i4 = _iterator4.next();
        if (_i4.done) break;
        _ref4 = _i4.value;
      }

      var key = _ref4;

      delete node[key];
    }
    return node;
  }

  function inheritsComments(child, parent) {
    inheritTrailingComments(child, parent);
    inheritLeadingComments(child, parent);
    inheritInnerComments(child, parent);
    return child;
  }

  function inheritTrailingComments(child, parent) {
    _inheritComments("trailingComments", child, parent);
  }

  function inheritLeadingComments(child, parent) {
    _inheritComments("leadingComments", child, parent);
  }

  function inheritInnerComments(child, parent) {
    _inheritComments("innerComments", child, parent);
  }

  function _inheritComments(key, child, parent) {
    if (child && parent) {
      child[key] = (0, _uniq2.default)([].concat(child[key], parent[key]).filter(Boolean));
    }
  }

  function inherits(child, parent) {
    if (!child || !parent) return child;

    for (var _iterator5 = t.INHERIT_KEYS.optional, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
      var _ref5;

      if (_isArray5) {
        if (_i5 >= _iterator5.length) break;
        _ref5 = _iterator5[_i5++];
      } else {
        _i5 = _iterator5.next();
        if (_i5.done) break;
        _ref5 = _i5.value;
      }

      var _key2 = _ref5;

      if (child[_key2] == null) {
        child[_key2] = parent[_key2];
      }
    }

    for (var key in parent) {
      if (key[0] === "_") child[key] = parent[key];
    }

    for (var _iterator6 = t.INHERIT_KEYS.force, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : (0, _getIterator3.default)(_iterator6);;) {
      var _ref6;

      if (_isArray6) {
        if (_i6 >= _iterator6.length) break;
        _ref6 = _iterator6[_i6++];
      } else {
        _i6 = _iterator6.next();
        if (_i6.done) break;
        _ref6 = _i6.value;
      }

      var _key3 = _ref6;

      child[_key3] = parent[_key3];
    }

    t.inheritsComments(child, parent);

    return child;
  }

  function assertNode(node) {
    if (!isNode(node)) {
      throw new TypeError("Not a valid node " + (node && node.type));
    }
  }

  function isNode(node) {
    return !!(node && _definitions.VISITOR_KEYS[node.type]);
  }

  (0, _toFastProperties2.default)(t);
  (0, _toFastProperties2.default)(t.VISITOR_KEYS);

  function traverseFast(node, enter, opts) {
    if (!node) return;

    var keys = t.VISITOR_KEYS[node.type];
    if (!keys) return;

    opts = opts || {};
    enter(node, opts);

    for (var _iterator7 = keys, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : (0, _getIterator3.default)(_iterator7);;) {
      var _ref7;

      if (_isArray7) {
        if (_i7 >= _iterator7.length) break;
        _ref7 = _iterator7[_i7++];
      } else {
        _i7 = _iterator7.next();
        if (_i7.done) break;
        _ref7 = _i7.value;
      }

      var key = _ref7;

      var subNode = node[key];

      if (Array.isArray(subNode)) {
        for (var _iterator8 = subNode, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : (0, _getIterator3.default)(_iterator8);;) {
          var _ref8;

          if (_isArray8) {
            if (_i8 >= _iterator8.length) break;
            _ref8 = _iterator8[_i8++];
          } else {
            _i8 = _iterator8.next();
            if (_i8.done) break;
            _ref8 = _i8.value;
          }

          var _node = _ref8;

          traverseFast(_node, enter, opts);
        }
      } else {
        traverseFast(subNode, enter, opts);
      }
    }
  }

  var CLEAR_KEYS = ["tokens", "start", "end", "loc", "raw", "rawValue"];

  var CLEAR_KEYS_PLUS_COMMENTS = t.COMMENT_KEYS.concat(["comments"]).concat(CLEAR_KEYS);

  function removeProperties(node, opts) {
    opts = opts || {};
    var map = opts.preserveComments ? CLEAR_KEYS : CLEAR_KEYS_PLUS_COMMENTS;
    for (var _iterator9 = map, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : (0, _getIterator3.default)(_iterator9);;) {
      var _ref9;

      if (_isArray9) {
        if (_i9 >= _iterator9.length) break;
        _ref9 = _iterator9[_i9++];
      } else {
        _i9 = _iterator9.next();
        if (_i9.done) break;
        _ref9 = _i9.value;
      }

      var _key4 = _ref9;

      if (node[_key4] != null) node[_key4] = undefined;
    }

    for (var key in node) {
      if (key[0] === "_" && node[key] != null) node[key] = undefined;
    }

    var syms = (0, _getOwnPropertySymbols2.default)(node);
    for (var _iterator10 = syms, _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : (0, _getIterator3.default)(_iterator10);;) {
      var _ref10;

      if (_isArray10) {
        if (_i10 >= _iterator10.length) break;
        _ref10 = _iterator10[_i10++];
      } else {
        _i10 = _iterator10.next();
        if (_i10.done) break;
        _ref10 = _i10.value;
      }

      var sym = _ref10;

      node[sym] = null;
    }
  }

  function removePropertiesDeep(tree, opts) {
    traverseFast(tree, removeProperties, opts);
    return tree;
  }
});
$__System.registerDynamic("1ad", ["11"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;
  exports.runtimeProperty = runtimeProperty;
  exports.isReference = isReference;

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function runtimeProperty(name) {
    return t.memberExpression(t.identifier("regeneratorRuntime"), t.identifier(name), false);
  } /**
     * Copyright (c) 2014, Facebook, Inc.
     * All rights reserved.
     *
     * This source code is licensed under the BSD-style license found in the
     * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
     * additional grant of patent rights can be found in the PATENTS file in
     * the same directory.
     */

  function isReference(path) {
    return path.isReferenced() || path.parentPath.isAssignmentExpression({ left: path.node });
  }
});
$__System.registerDynamic("1ac", [], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var originalObject = Object;
  var originalDefProp = Object.defineProperty;
  var originalCreate = Object.create;

  function defProp(obj, name, value) {
    if (originalDefProp) try {
      originalDefProp.call(originalObject, obj, name, { value: value });
    } catch (definePropertyIsBrokenInIE8) {
      obj[name] = value;
    } else {
      obj[name] = value;
    }
  }

  // For functions that will be invoked using .call or .apply, we need to
  // define those methods on the function objects themselves, rather than
  // inheriting them from Function.prototype, so that a malicious or clumsy
  // third party cannot interfere with the functionality of this module by
  // redefining Function.prototype.call or .apply.
  function makeSafeToCall(fun) {
    if (fun) {
      defProp(fun, "call", fun.call);
      defProp(fun, "apply", fun.apply);
    }
    return fun;
  }

  makeSafeToCall(originalDefProp);
  makeSafeToCall(originalCreate);

  var hasOwn = makeSafeToCall(Object.prototype.hasOwnProperty);
  var numToStr = makeSafeToCall(Number.prototype.toString);
  var strSlice = makeSafeToCall(String.prototype.slice);

  var cloner = function () {};
  function create(prototype) {
    if (originalCreate) {
      return originalCreate.call(originalObject, prototype);
    }
    cloner.prototype = prototype || null;
    return new cloner();
  }

  var rand = Math.random;
  var uniqueKeys = create(null);

  function makeUniqueKey() {
    // Collisions are highly unlikely, but this module is in the business of
    // making guarantees rather than safe bets.
    do var uniqueKey = internString(strSlice.call(numToStr.call(rand(), 36), 2)); while (hasOwn.call(uniqueKeys, uniqueKey));
    return uniqueKeys[uniqueKey] = uniqueKey;
  }

  function internString(str) {
    var obj = {};
    obj[str] = true;
    return Object.keys(obj)[0];
  }

  // External users might find this function useful, but it is not necessary
  // for the typical use of this module.
  exports.makeUniqueKey = makeUniqueKey;

  // Object.getOwnPropertyNames is the only way to enumerate non-enumerable
  // properties, so if we wrap it to ignore our secret keys, there should be
  // no way (except guessing) to access those properties.
  var originalGetOPNs = Object.getOwnPropertyNames;
  Object.getOwnPropertyNames = function getOwnPropertyNames(object) {
    for (var names = originalGetOPNs(object), src = 0, dst = 0, len = names.length; src < len; ++src) {
      if (!hasOwn.call(uniqueKeys, names[src])) {
        if (src > dst) {
          names[dst] = names[src];
        }
        ++dst;
      }
    }
    names.length = dst;
    return names;
  };

  function defaultCreatorFn(object) {
    return create(null);
  }

  function makeAccessor(secretCreatorFn) {
    var brand = makeUniqueKey();
    var passkey = create(null);

    secretCreatorFn = secretCreatorFn || defaultCreatorFn;

    function register(object) {
      var secret; // Created lazily.

      function vault(key, forget) {
        // Only code that has access to the passkey can retrieve (or forget)
        // the secret object.
        if (key === passkey) {
          return forget ? secret = null : secret || (secret = secretCreatorFn(object));
        }
      }

      defProp(object, brand, vault);
    }

    function accessor(object) {
      if (!hasOwn.call(object, brand)) register(object);
      return object[brand](passkey);
    }

    accessor.forget = function (object) {
      if (hasOwn.call(object, brand)) object[brand](passkey, true);
    };

    return accessor;
  }

  exports.makeAccessor = makeAccessor;
});
$__System.registerDynamic("24a", ["1a8", "11", "1a6", "1a9", "1ae", "1ad", "1ac"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  var _assert = $__require("1a8");

  var _assert2 = _interopRequireDefault(_assert);

  var _babelTypes = $__require("11");

  var t = _interopRequireWildcard(_babelTypes);

  var _hoist = $__require("1a6");

  var _emit = $__require("1a9");

  var _replaceShorthandObjectMethod = $__require("1ae");

  var _replaceShorthandObjectMethod2 = _interopRequireDefault(_replaceShorthandObjectMethod);

  var _util = $__require("1ad");

  var util = _interopRequireWildcard(_util);

  function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
      return obj;
    } else {
      var newObj = {};if (obj != null) {
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
        }
      }newObj.default = obj;return newObj;
    }
  }

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : { default: obj };
  }

  /**
   * Copyright (c) 2014, Facebook, Inc.
   * All rights reserved.
   *
   * This source code is licensed under the BSD-style license found in the
   * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
   * additional grant of patent rights can be found in the PATENTS file in
   * the same directory.
   */

  var getMarkInfo = $__require("1ac").makeAccessor();

  exports.visitor = {
    Function: {
      exit: function exit(path, state) {
        var node = path.node;

        if (node.generator) {
          if (node.async) {
            // Async generator
            if (state.opts.asyncGenerators === false) return;
          } else {
            // Plain generator
            if (state.opts.generators === false) return;
          }
        } else if (node.async) {
          // Async function
          if (state.opts.async === false) return;
        } else {
          // Not a generator or async function.
          return;
        }

        // if this is an ObjectMethod, we need to convert it to an ObjectProperty
        path = (0, _replaceShorthandObjectMethod2.default)(path);
        node = path.node;

        var contextId = path.scope.generateUidIdentifier("context");
        var argsId = path.scope.generateUidIdentifier("args");

        path.ensureBlock();
        var bodyBlockPath = path.get("body");

        if (node.async) {
          bodyBlockPath.traverse(awaitVisitor);
        }

        bodyBlockPath.traverse(functionSentVisitor, {
          context: contextId
        });

        var outerBody = [];
        var innerBody = [];

        bodyBlockPath.get("body").forEach(function (childPath) {
          var node = childPath.node;
          if (t.isExpressionStatement(node) && t.isStringLiteral(node.expression)) {
            // Babylon represents directives like "use strict" as elements
            // of a bodyBlockPath.node.directives array, but they could just
            // as easily be represented (by other parsers) as traditional
            // string-literal-valued expression statements, so we need to
            // handle that here. (#248)
            outerBody.push(node);
          } else if (node && node._blockHoist != null) {
            outerBody.push(node);
          } else {
            innerBody.push(node);
          }
        });

        if (outerBody.length > 0) {
          // Only replace the inner body if we actually hoisted any statements
          // to the outer body.
          bodyBlockPath.node.body = innerBody;
        }

        var outerFnExpr = getOuterFnExpr(path);
        // Note that getOuterFnExpr has the side-effect of ensuring that the
        // function has a name (so node.id will always be an Identifier), even
        // if a temporary name has to be synthesized.
        t.assertIdentifier(node.id);
        var innerFnId = t.identifier(node.id.name + "$");

        // Turn all declarations into vars, and replace the original
        // declarations with equivalent assignment expressions.
        var vars = (0, _hoist.hoist)(path);

        var didRenameArguments = renameArguments(path, argsId);
        if (didRenameArguments) {
          vars = vars || t.variableDeclaration("var", []);
          var argumentIdentifier = t.identifier("arguments");
          // we need to do this as otherwise arguments in arrow functions gets hoisted
          argumentIdentifier._shadowedFunctionLiteral = path;
          vars.declarations.push(t.variableDeclarator(argsId, argumentIdentifier));
        }

        var emitter = new _emit.Emitter(contextId);
        emitter.explode(path.get("body"));

        if (vars && vars.declarations.length > 0) {
          outerBody.push(vars);
        }

        var wrapArgs = [emitter.getContextFunction(innerFnId),
        // Async functions that are not generators don't care about the
        // outer function because they don't need it to be marked and don't
        // inherit from its .prototype.
        node.generator ? outerFnExpr : t.nullLiteral(), t.thisExpression()];

        var tryLocsList = emitter.getTryLocsList();
        if (tryLocsList) {
          wrapArgs.push(tryLocsList);
        }

        var wrapCall = t.callExpression(util.runtimeProperty(node.async ? "async" : "wrap"), wrapArgs);

        outerBody.push(t.returnStatement(wrapCall));
        node.body = t.blockStatement(outerBody);

        var oldDirectives = bodyBlockPath.node.directives;
        if (oldDirectives) {
          // Babylon represents directives like "use strict" as elements of
          // a bodyBlockPath.node.directives array. (#248)
          node.body.directives = oldDirectives;
        }

        var wasGeneratorFunction = node.generator;
        if (wasGeneratorFunction) {
          node.generator = false;
        }

        if (node.async) {
          node.async = false;
        }

        if (wasGeneratorFunction && t.isExpression(node)) {
          path.replaceWith(t.callExpression(util.runtimeProperty("mark"), [node]));
        }

        // Generators are processed in 'exit' handlers so that regenerator only has to run on
        // an ES5 AST, but that means traversal will not pick up newly inserted references
        // to things like 'regeneratorRuntime'. To avoid this, we explicitly requeue.
        path.requeue();
      }
    }
  };

  // Given a NodePath for a Function, return an Expression node that can be
  // used to refer reliably to the function object from inside the function.
  // This expression is essentially a replacement for arguments.callee, with
  // the key advantage that it works in strict mode.
  function getOuterFnExpr(funPath) {
    var node = funPath.node;
    t.assertFunction(node);

    if (!node.id) {
      // Default-exported function declarations, and function expressions may not
      // have a name to reference, so we explicitly add one.
      node.id = funPath.scope.parent.generateUidIdentifier("callee");
    }

    if (node.generator && // Non-generator functions don't need to be marked.
    t.isFunctionDeclaration(node)) {
      var pp = funPath.findParent(function (path) {
        return path.isProgram() || path.isBlockStatement();
      });

      if (!pp) {
        return node.id;
      }

      var markDecl = getRuntimeMarkDecl(pp);
      var markedArray = markDecl.declarations[0].id;
      var funDeclIdArray = markDecl.declarations[0].init.callee.object;
      t.assertArrayExpression(funDeclIdArray);

      var index = funDeclIdArray.elements.length;
      funDeclIdArray.elements.push(node.id);

      return t.memberExpression(markedArray, t.numericLiteral(index), true);
    }

    return node.id;
  }

  function getRuntimeMarkDecl(blockPath) {
    var block = blockPath.node;
    _assert2.default.ok(Array.isArray(block.body));

    var info = getMarkInfo(block);
    if (info.decl) {
      return info.decl;
    }

    info.decl = t.variableDeclaration("var", [t.variableDeclarator(blockPath.scope.generateUidIdentifier("marked"), t.callExpression(t.memberExpression(t.arrayExpression([]), t.identifier("map"), false), [util.runtimeProperty("mark")]))]);

    blockPath.unshiftContainer("body", info.decl);

    return info.decl;
  }

  function renameArguments(funcPath, argsId) {
    var state = {
      didRenameArguments: false,
      argsId: argsId
    };

    funcPath.traverse(argumentsVisitor, state);

    // If the traversal replaced any arguments references, then we need to
    // alias the outer function's arguments binding (be it the implicit
    // arguments object or some other parameter or variable) to the variable
    // named by argsId.
    return state.didRenameArguments;
  }

  var argumentsVisitor = {
    "FunctionExpression|FunctionDeclaration": function FunctionExpressionFunctionDeclaration(path) {
      path.skip();
    },

    Identifier: function Identifier(path, state) {
      if (path.node.name === "arguments" && util.isReference(path)) {
        path.replaceWith(state.argsId);
        state.didRenameArguments = true;
      }
    }
  };

  var functionSentVisitor = {
    MetaProperty: function MetaProperty(path) {
      var node = path.node;

      if (node.meta.name === "function" && node.property.name === "sent") {
        path.replaceWith(t.memberExpression(this.context, t.identifier("_sent")));
      }
    }
  };

  var awaitVisitor = {
    Function: function Function(path) {
      path.skip(); // Don't descend into nested function scopes.
    },

    AwaitExpression: function AwaitExpression(path) {
      // Convert await expressions to yield expressions.
      var argument = path.node.argument;

      // Transforming `await x` to `yield regeneratorRuntime.awrap(x)`
      // causes the argument to be wrapped in such a way that the runtime
      // can distinguish between awaited and merely yielded values.
      path.replaceWith(t.yieldExpression(t.callExpression(util.runtimeProperty("awrap"), [argument]), false));
    }
  };
});
$__System.registerDynamic("24b", ["24a"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  exports.__esModule = true;

  exports.default = function () {
    return $__require("24a");
  };
});
$__System.registerDynamic("24c", ["24b"], true, function ($__require, exports, module) {
  "use strict";

  var global = this || self,
      GLOBAL = global;
  module.exports = $__require("24b");
});
$__System.register('a', ['de', 'f1', 'df', 'e1', 'e3', 'e8', 'e9', 'f2', '108', '109', '10a', '10b', '10c', '10d', '11d', '11e', '11f', '120', '121', '122', '12f', '130', '131', '136', '137', '1a5', '24c'], function (_export, _context) {
  "use strict";

  var babel, dynamicImportSyntax, modulesRegisterPlugin, externalHelpersPlugin, runtimeTransformPlugin, p1, p2, p3, pReact, templateLiterals, literals, functionName, arrowFunctions, blockScopedFunctions, classes, objectSuper, shorthandProperties, computedProperties, forOf, stickyRegex, unicodeRegex, constants, spread, parameters, destructuring, blockScoping, regenerator, modulesRegister, externalHelpers, runtimeTransform, pluginsStage1, pluginsStage2, pluginsStage3, pluginsReact, es2015Plugins, regeneratorPlugin, presetES2015, presetES2015Register;
  return {
    setters: [function (_de) {
      babel = _de.default;
    }, function (_f) {
      dynamicImportSyntax = _f.default;
    }, function (_df) {
      modulesRegisterPlugin = _df.default;
    }, function (_e) {
      externalHelpersPlugin = _e.default;
    }, function (_e2) {
      runtimeTransformPlugin = _e2.default;
    }, function (_e3) {
      p1 = _e3.default;
    }, function (_e4) {
      p2 = _e4.default;
    }, function (_f2) {
      p3 = _f2.default;
    }, function (_) {
      pReact = _.default;
    }, function (_2) {
      templateLiterals = _2.default;
    }, function (_a) {
      literals = _a.default;
    }, function (_b) {
      functionName = _b.default;
    }, function (_c) {
      arrowFunctions = _c.default;
    }, function (_d) {
      blockScopedFunctions = _d.default;
    }, function (_d2) {
      classes = _d2.default;
    }, function (_e5) {
      objectSuper = _e5.default;
    }, function (_f3) {
      shorthandProperties = _f3.default;
    }, function (_3) {
      computedProperties = _3.default;
    }, function (_4) {
      forOf = _4.default;
    }, function (_5) {
      stickyRegex = _5.default;
    }, function (_f4) {
      unicodeRegex = _f4.default;
    }, function (_6) {
      constants = _6.default;
    }, function (_7) {
      spread = _7.default;
    }, function (_8) {
      parameters = _8.default;
    }, function (_9) {
      destructuring = _9.default;
    }, function (_a2) {
      blockScoping = _a2.default;
    }, function (_c2) {
      regenerator = _c2.default;
    }],
    execute: function () {
      _export('babel', babel);

      _export('modulesRegister', modulesRegister = {
        plugins: [dynamicImportSyntax, modulesRegisterPlugin]
      });

      _export('modulesRegister', modulesRegister);

      _export('externalHelpers', externalHelpers = {
        plugins: [externalHelpersPlugin]
      });

      _export('externalHelpers', externalHelpers);

      _export('runtimeTransform', runtimeTransform = {
        plugins: [[runtimeTransformPlugin, { polyfill: false }]]
      });

      _export('runtimeTransform', runtimeTransform);

      _export('pluginsStage1', pluginsStage1 = p1.plugins);

      _export('pluginsStage2', pluginsStage2 = p2.plugins);

      _export('pluginsStage3', pluginsStage3 = p3.plugins);

      _export('pluginsReact', pluginsReact = pReact.plugins);

      _export('pluginsStage1', pluginsStage1);

      _export('pluginsStage2', pluginsStage2);

      _export('pluginsStage3', pluginsStage3);

      _export('pluginsReact', pluginsReact);

      es2015Plugins = [templateLiterals, literals, functionName, arrowFunctions, blockScopedFunctions, classes, objectSuper, shorthandProperties, computedProperties, forOf, stickyRegex, unicodeRegex, constants, spread, parameters, destructuring, blockScoping];
      regeneratorPlugin = [regenerator, { async: false, asyncGenerators: false }];

      _export('presetES2015', presetES2015 = {
        plugins: [dynamicImportSyntax].concat(es2015Plugins, [regeneratorPlugin])
      });

      _export('presetES2015', presetES2015);

      _export('presetES2015Register', presetES2015Register = {
        plugins: [dynamicImportSyntax].concat(es2015Plugins, [modulesRegisterPlugin, regeneratorPlugin])
      });

      _export('presetES2015Register', presetES2015Register);
    }
  };
});
})
(function(factory) {
  define([], factory);
});