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sourcemap from 'src/external/source-map.min.js';\n\n/*MD # Stack MD*/\nexport default class Stack {\n static get defaultErrorMessage() {\n return 'Error for stack';\n }\n constructor({ omitFn = Stack, max }) {\n Error.stackTraceLimit = Infinity;\n Error.captureStackTrace(this._error = {}, omitFn);\n this._frames = this._computeFrames(this._error.stack, max);\n }\n _computeFrames(desc, max) {\n return desc.lines().slice(1, max).map(line => new Frame(line));\n }\n get frames() {\n return this._frames;\n }\n getFrame(id = 1) {\n return this.frames[id];\n }\n getFrames(from, to) {\n return this.frames.slice(from, to);\n }\n toString() {\n return this.frames.join('\\n');\n }\n}\n\n/*MD # Frame\nView some examples at [regex101](https://regex101.com/r/pSppPm/3)\nMD*/\nexport class Frame {\n constructor(desc) {\n this._desc = desc;\n this._extractInfos(this._desc);\n }\n\n _extractInfos(desc) {\n // just file, transpiled, line, char given -> no parens around\n // \" at https://lively-kernel.org/lively4/aexpr/src/external/mocha.js?1583757762700:4694:7\"\n if (!this._desc.endsWith(')')) {\n const extractSourceInfo = /^\\s+at\\s(.*)$/;\n const result = extractSourceInfo.exec(desc);\n // lively.openInspector(result)\n const info = this._getFileLineChar(result[1]);\n this._applyLocationInfo(info);\n\n return;\n }\n\n // e.g. \" at Function.stack (https://lively-kernel.org/lively4/aexpr/src/client/lively.js!transpiled:2548:19)\"\n const isNamedCall = /^\\s+at\\s([^\\(]*)\\s\\((.*)\\)$/;\n let namedCall;\n if ((namedCall = isNamedCall.exec(desc)) !== null) {\n const [, funcDesc, location] = namedCall;\n\n let locations;\n // \" at doEvaluate (eval at loadJavaScript (https://lively-kernel.org/lively4/aexpr/src/client/boot.js:25:3), <anonymous>:1554:13)\"\n // can also have no infos on function name of eval call:\n // \" at eval (eval at (https://lively-kernel.org/lively4/aexpr/test/stack-test.js!transpiled), :8:19)\"\n const getLocations = /^(?:eval\\sat\\s(.*\\)),\\s)?(.*)$/;\n if ((locations = getLocations.exec(location)) !== null) {\n const [, evalInfo, sourceLocation] = locations;\n\n if (evalInfo) {\n this._extractEvalInfos(evalInfo);\n }\n\n const info = this._getFileLineChar(sourceLocation);\n this._applyLocationInfo(info);\n }\n\n const info2 = this._getFunction(funcDesc);\n this._applyFunctionInfo(info2);\n\n return;\n }\n\n lively.warn('could not analyse frame', desc);\n }\n\n _extractEvalInfos(desc) {\n const isNamedCall = /^([^\\(]*)\\s\\((.*)\\)$/;\n let namedCall;\n if ((namedCall = isNamedCall.exec(desc)) !== null) {\n const [, funcDesc, location] = namedCall;\n\n const info = this._getFileLineChar(location);\n this._applyEvalLocationInfo(info);\n\n const info2 = this._getFunction(funcDesc);\n this._applyEvalFunctionInfo(info2);\n }\n }\n\n /*MD ## location utils MD*/\n _getFileLineChar(locationDesc) {\n function reverseString(str) {\n return str.split('').reverse().join('');\n }\n\n const reversedDesc = reverseString(locationDesc);\n const reversedFileLineChar = /^(?:(\\d+):)?(?:(\\d+):)?(?:(delipsnart)!)?(.*)$/;\n\n const [, char, line, transpiled, file] = reversedFileLineChar.exec(reversedDesc);\n\n return {\n char: char && parseInt(reverseString(char)),\n line: line && parseInt(reverseString(line)),\n transpiled: !!transpiled,\n file: reverseString(file)\n };\n }\n\n _applyLocationInfo({ char, line, transpiled, file }) {\n this._char = char;\n this._line = line;\n this._transpiled = transpiled;\n this._file = file;\n }\n\n _applyEvalLocationInfo({ char, line, transpiled, file }) {\n this._evalChar = char;\n this._evalLine = line;\n this._evalTranspiled = transpiled;\n this._evalFile = file;\n }\n\n /*MD ## func utils MD*/\n _getFunction(desc) {\n const newAsyncFunc = /^(?:(new)\\s)?(?:(async)\\s)?(.+)$/;\n\n const [, isNew, isAsync, func] = newAsyncFunc.exec(desc);\n\n return {\n isNew: !!isNew,\n isAsync: !!isAsync,\n func\n };\n }\n\n _applyFunctionInfo({ isNew, isAsync, func }) {\n this._new = isNew;\n this._async = isAsync;\n this._func = func;\n }\n\n _applyEvalFunctionInfo({ isNew, isAsync, func }) {\n this._evalNew = isNew;\n this._evalAsync = isAsync;\n this._evalFunc = func;\n }\n \n async _determineSourceInfo() {\n const sourceMappingURL = this.sourceMapURL();\n if(!sourceMappingURL || !(await lively.files.exists(sourceMappingURL))) {\n if(this._file !== \"\") {\n this._sourceLoc = { line: this._line, column: this._char, source: this._file };\n }\n return;\n } \n\n var sourceMap = await sourceMappingURL.fetchJSON();\n var smc = sourcemap.SourceMapConsumer(sourceMap);\n this._sourceLoc = smc.originalPositionFor({\n line: parseInt(this._line),\n column: parseInt(this._char)\n });\n }\n\n sourceMapURL() {\n if (this._file === \"\") return;\n\n const [livelyPath, srcPath] = this._file.split(\"/src/\");\n\n if (!srcPath) {\n return;\n }\n\n const sourceMappingURL = livelyPath + \"/.transpiled/\" + (\"src/\" + srcPath).replaceAll(\"/\", \"_\") + \".map.json\";\n return sourceMappingURL;\n }\n\n /*MD ## func MD*/\n /**\n * returns Bool\n */\n\n get async() {\n return this._async || false;\n }\n\n get new() {\n return this._new || false;\n }\n\n get func() {\n return this._func;\n }\n\n /*MD ## location MD*/\n get file() {\n return this._file;\n }\n\n get transpiled() {\n return this._transpiled || false;\n }\n\n get line() {\n return this._line;\n }\n\n get char() {\n return this._char;\n }\n\n async getSourceLocBabelStyle() {\n if (!this._sourceLoc) {\n await this._determineSourceInfo();\n if (!this._sourceLoc) return undefined;\n }\n const location = { line: this._sourceLoc.line, column: this._sourceLoc.column };\n return { start: location, end: location, file: this._sourceLoc.source };\n }\n\n async getSourceLoc() {\n if (!this._sourceLoc) {\n await this._determineSourceInfo();\n }\n return this._sourceLoc;\n }\n\n async getSourceLine() {\n if (!this._sourceLoc.line) {\n await this._determineSourceInfo();\n }\n return this._sourceLoc.line;\n }\n\n async getSourceChar() {\n if (!this._sourceLoc.character) {\n await this._determineSourceInfo();\n }\n return this._sourceLoc.column;\n }\n\n /*MD ## eval func MD*/\n /**\n * returns Bool\n */\n get evalAsync() {\n return this._evalAsync || false;\n }\n\n get evalNew() {\n return this._evalNew || false;\n }\n\n get evalFunc() {\n return this._evalFunc;\n }\n\n /*MD ## eval location MD*/\n get evalFile() {\n return this._evalFile;\n }\n\n get evalTranspiled() {\n return this._evalTranspiled;\n }\n\n get evalLine() {\n return this._evalLine;\n }\n\n get evalChar() {\n return this._evalChar;\n }\n\n /*MD ## utils MD*/\n // #TODO: implement\n openInBrowser(browser) {\n // #TODO: requires back mapping of source code information #SourceMaps\n }\n\n toString() {\n return this._desc.replace(/\\s+at\\s/, '');\n }\n\n}"]}