Class BlockScopeNode

java.lang.Object

com.oracle.truffle.api.nodes.Node

com.oracle.truffle.js.nodes.JavaScriptBaseNode

com.oracle.truffle.js.nodes.JavaScriptNode

com.oracle.truffle.js.nodes.function.NamedEvaluationTargetNode

com.oracle.truffle.js.nodes.function.BlockScopeNode

All Implemented Interfaces:

com.oracle.truffle.api.instrumentation.InstrumentableNode, com.oracle.truffle.api.nodes.NodeInterface, com.oracle.truffle.api.nodes.RepeatingNode, Cloneable

Direct Known Subclasses:

BlockScopeNode.FrameBlockScopeNode, BlockScopeNode.VirtualBlockScopeNode

public abstract class BlockScopeNode
extends NamedEvaluationTargetNode
implements com.oracle.truffle.api.nodes.RepeatingNode

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	BlockScopeNode.FrameBlockScopeNode
static class	BlockScopeNode.VirtualBlockScopeNode	Represents a local block scope that has been merged into the function's virtual frame.

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

Field Summary

Fields

Modifier and Type	Field	Description
protected JavaScriptNode	block

Fields inherited from class JavaScriptNode

INTERMEDIATE_VALUE

Fields inherited from interface com.oracle.truffle.api.nodes.RepeatingNode

BREAK_LOOP_STATUS, CONTINUE_LOOP_STATUS

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BlockScopeNode(JavaScriptNode block)

Method Summary

Modifier and Type	Method	Description
abstract com.oracle.truffle.api.frame.VirtualFrame	appendScopeFrame(com.oracle.truffle.api.frame.VirtualFrame frame)
static BlockScopeNode	create(JavaScriptNode block, JSFrameSlot blockScopeSlot, com.oracle.truffle.api.frame.FrameDescriptor frameDescriptor, JSFrameSlot parentSlot, boolean functionBlock, boolean captureFunctionFrame, boolean generatorFunctionBlock, boolean hasParentBlock, int start, int end)
static BlockScopeNode	createVirtual(JavaScriptNode block, int frameStart, int frameEnd)
Object	execute(com.oracle.truffle.api.frame.VirtualFrame frame)	Executes this node using the specified context and frame and returns the result value.
boolean	executeRepeating(com.oracle.truffle.api.frame.VirtualFrame frame)
void	executeVoid(com.oracle.truffle.api.frame.VirtualFrame frame)	Like JavaScriptNode.execute(VirtualFrame) except that it throws away the result.
Object	executeWithName(com.oracle.truffle.api.frame.VirtualFrame frame, Object name)
final void	exitScope(com.oracle.truffle.api.frame.VirtualFrame frame)
abstract void	exitScope(com.oracle.truffle.api.frame.VirtualFrame frame, boolean yield)
JavaScriptNode	getBlock()
abstract Object	getBlockScope(com.oracle.truffle.api.frame.VirtualFrame frame)
int	getFrameEnd()
int	getFrameStart()
abstract boolean	isFunctionBlock()
boolean	isResultAlwaysOfType(Class<?> clazz)
abstract void	setBlockScope(com.oracle.truffle.api.frame.VirtualFrame frame, Object state)

Methods inherited from class NamedEvaluationTargetNode

createWrapper

Methods inherited from class JavaScriptNode

addCallTag, addExpressionTag, addRootBodyTag, addStatementTag, cloneUninitialized, cloneUninitialized, copy, copyUninitialized, executeBoolean, executeDouble, executeInt, expressionToString, findBlockScopeNode, getSourceSection, hasSourceSection, hasTag, isInstrumentable, onReplace, setSourceSection, setSourceSection, toString, transferSourceSection, transferSourceSectionAddExpressionTag, transferSourceSectionAndTags

Methods inherited from class JavaScriptBaseNode

getJSContext, getLanguage, getLanguageOptions, getRealm, hasOverloadedOperators, reportLoopCount, reportLoopCount

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

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

Methods inherited from class Object

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

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

createProbe, findNearestNodeAt, findNearestNodeAt, findProbe, getNodeObject, materializeInstrumentableNodes

Methods inherited from interface com.oracle.truffle.api.nodes.RepeatingNode

executeRepeatingWithValue, initialLoopStatus, shouldContinue

Field Details

block

protected JavaScriptNode block

Constructor Details

BlockScopeNode

protected BlockScopeNode(JavaScriptNode block)

Method Details

create

public static BlockScopeNode create(JavaScriptNode block,
 JSFrameSlot blockScopeSlot,
 com.oracle.truffle.api.frame.FrameDescriptor frameDescriptor,
 JSFrameSlot parentSlot,
 boolean functionBlock,
 boolean captureFunctionFrame,
 boolean generatorFunctionBlock,
 boolean hasParentBlock,
 int start,
 int end)

createVirtual

public static BlockScopeNode createVirtual(JavaScriptNode block,
 int frameStart,
 int frameEnd)

execute

public Object execute(com.oracle.truffle.api.frame.VirtualFrame frame)

Description copied from class: JavaScriptNode

Executes this node using the specified context and frame and returns the result value.

Specified by:

execute in class JavaScriptNode

Parameters:

frame - the frame of the currently executing guest language method

Returns:

the value of the execution

executeVoid

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

Description copied from class: JavaScriptNode

Like JavaScriptNode.execute(VirtualFrame) except that it throws away the result. A node can override this method if it has a better way to execute without producing a value.

Overrides:

executeVoid in class JavaScriptNode

Parameters:

frame - the frame of the currently executing guest language method

appendScopeFrame

public abstract com.oracle.truffle.api.frame.VirtualFrame appendScopeFrame(com.oracle.truffle.api.frame.VirtualFrame frame)

exitScope

public final void exitScope(com.oracle.truffle.api.frame.VirtualFrame frame)

exitScope

public abstract void exitScope(com.oracle.truffle.api.frame.VirtualFrame frame,
 boolean yield)

getBlockScope

public abstract Object getBlockScope(com.oracle.truffle.api.frame.VirtualFrame frame)

setBlockScope

public abstract void setBlockScope(com.oracle.truffle.api.frame.VirtualFrame frame,
 Object state)

executeRepeating

public boolean executeRepeating(com.oracle.truffle.api.frame.VirtualFrame frame)

Specified by:

executeRepeating in interface com.oracle.truffle.api.nodes.RepeatingNode

executeWithName

public Object executeWithName(com.oracle.truffle.api.frame.VirtualFrame frame,
 Object name)

Specified by:

executeWithName in class NamedEvaluationTargetNode

getBlock

public JavaScriptNode getBlock()

isFunctionBlock

public abstract boolean isFunctionBlock()

isResultAlwaysOfType

public boolean isResultAlwaysOfType(Class<?> clazz)

Overrides:

isResultAlwaysOfType in class JavaScriptNode

getFrameStart

public int getFrameStart()

getFrameEnd

public int getFrameEnd()