Package com.oracle.truffle.sl.nodes.controlflow

Class SLBlockNode

java.lang.Object

com.oracle.truffle.api.nodes.Node

com.oracle.truffle.sl.nodes.local.SLScopedNode

com.oracle.truffle.sl.nodes.SLStatementNode

com.oracle.truffle.sl.nodes.controlflow.SLBlockNode

All Implemented Interfaces:

com.oracle.truffle.api.instrumentation.InstrumentableNode, com.oracle.truffle.api.nodes.BlockNode.ElementExecutor<SLStatementNode>, com.oracle.truffle.api.nodes.NodeInterface, Cloneable

public final class SLBlockNode
extends SLStatementNode
implements com.oracle.truffle.api.nodes.BlockNode.ElementExecutor<SLStatementNode>

A statement node that just executes a list of other statements.

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.truffle.api.nodes.Node

com.oracle.truffle.api.nodes.Node.Child, com.oracle.truffle.api.nodes.Node.Children

Nested classes/interfaces inherited from interface com.oracle.truffle.api.instrumentation.InstrumentableNode

com.oracle.truffle.api.instrumentation.InstrumentableNode.WrapperNode

Constructor Summary

Constructors

Constructor	Description
SLBlockNode(SLStatementNode[] bodyNodes)

Method Summary

Modifier and Type	Method	Description
void	executeVoid(com.oracle.truffle.api.frame.VirtualFrame frame)	Execute all block statements.
void	executeVoid(com.oracle.truffle.api.frame.VirtualFrame frame, SLStatementNode node, int index, int argument)	Truffle nodes don't have a fixed execute signature.
SLWriteLocalVariableNode[]	getDeclaredLocalVariables()	All declared local variables accessible in this block.
int	getParentBlockIndex()
List<SLStatementNode>	getStatements()

Methods inherited from class com.oracle.truffle.sl.nodes.SLStatementNode

addRootTag, addStatementTag, createWrapper, formatSourceSection, getSourceCharIndex, getSourceEndIndex, getSourceLength, getSourceSection, hasSource, hasTag, isInstrumentable, setSourceSection, setUnavailableSourceSection, toString

Methods inherited from class com.oracle.truffle.sl.nodes.local.SLScopedNode

findBlock, getVisibleVariablesIndexOnEnter, hasScope, setVisibleVariablesIndexOnEnter, setVisibleVariablesIndexOnExit

Methods inherited from class com.oracle.truffle.api.nodes.Node

accept, adoptChildren, atomic, atomic, copy, deepCopy, getChildren, getCost, getDebugProperties, getDescription, getEncapsulatingSourceSection, getLock, getParent, getRootNode, insert, insert, isAdoptable, isSafelyReplaceableBy, notifyInserted, onReplace, replace, replace, reportPolymorphicSpecialize, reportReplace

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.oracle.truffle.api.nodes.BlockNode.ElementExecutor

executeBoolean, executeByte, executeChar, executeDouble, executeFloat, executeGeneric, executeInt, executeLong, executeShort

Methods inherited from interface com.oracle.truffle.api.instrumentation.InstrumentableNode

createProbe, findNearestNodeAt, findNearestNodeAt, findProbe, getNodeObject, materializeInstrumentableNodes

Constructor Details

SLBlockNode

public SLBlockNode(SLStatementNode[] bodyNodes)

Method Details

executeVoid

public void executeVoid(com.oracle.truffle.api.frame.VirtualFrame frame)

Execute all block statements. The block node makes sure that full unrolling of the loop is triggered during compilation. This allows the SLStatementNode.executeVoid(com.oracle.truffle.api.frame.VirtualFrame) method of all children to be inlined.

Specified by:

executeVoid in class SLStatementNode

getStatements

public List<SLStatementNode> getStatements()

executeVoid

public void executeVoid(com.oracle.truffle.api.frame.VirtualFrame frame,
 SLStatementNode node,
 int index,
 int argument)

Truffle nodes don't have a fixed execute signature. The BlockNode.ElementExecutor interface tells the framework how block element nodes should be executed. The executor allows to add a custom exception handler for each element, e.g. to handle a specific ControlFlowException or to pass a customizable argument, that allows implement startsWith semantics if needed. For SL we don't need to pass any argument as we just have plain block nodes, therefore we pass BlockNode.NO_ARGUMENT. In our case the executor does not need to remember any state so we reuse a singleton instance.

Specified by:

executeVoid in interface com.oracle.truffle.api.nodes.BlockNode.ElementExecutor<SLStatementNode>

getDeclaredLocalVariables

public SLWriteLocalVariableNode[] getDeclaredLocalVariables()

All declared local variables accessible in this block. Variables declared in parent blocks are included.

getParentBlockIndex

public int getParentBlockIndex()