Class InitializeInstanceElementsNode

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.access.InitializeInstanceElementsNode

All Implemented Interfaces:

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

public abstract class InitializeInstanceElementsNode
extends JavaScriptNode

InitializeInstanceElements (O, constructor). Defines class instance fields using the provided field records from the constructor. For fields with an initializer, the initializer function is called to obtain the initial value and, if it's an anonymous function definition, its function name is set to the (computed) field name. Also performs PrivateBrandAdd(O, constructor.[[PrivateBrand]]) if the brand is not undefined. Relies on the following per-class invariants:

• The number of instance fields is constant.
• For each field index, the key will either always or never be a private name.
• For each field index, an initializer will either always or never be present.
• For each field index, [[IsAnonymousFunctionDefinition]] will never change.
• The [[Fields]] slot will either always or never be present.
• The [[PrivateBrand]] slot will either always or never be present.

This node is also used to define static fields (executeStaticElements(java.lang.Object, com.oracle.truffle.js.nodes.function.ClassElementDefinitionRecord[])).

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

Field Summary

Fields

Modifier and Type	Field	Description
protected JSTargetableNode	brandNode
protected JavaScriptNode	constructorNode
protected final JSContext	context
protected JSTargetableNode	fieldsNode
protected JSTargetableNode	initializersNode
protected JavaScriptNode	targetNode

Fields inherited from class com.oracle.truffle.js.nodes.JavaScriptNode

INTERMEDIATE_VALUE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	InitializeInstanceElementsNode(JSContext context, JavaScriptNode targetNode, JavaScriptNode constructorNode)

Method Summary

Modifier and Type	Method	Description
protected JavaScriptNode	copyUninitialized(Set<Class<? extends com.oracle.truffle.api.instrumentation.Tag>> materializedTags)
static InitializeInstanceElementsNode	create(JSContext context)
static JavaScriptNode	create(JSContext context, JavaScriptNode targetNode, JavaScriptNode constructorNode)
protected abstract Object	executeEvaluated(Object target, Object constructor, ClassElementDefinitionRecord[] fields, Object[] initializers, Object brand)
final Object	executeStaticElements(Object targetConstructor, ClassElementDefinitionRecord[] staticElements)
protected static Object	privateBrandAdd(Object target, Object constructor, Object fields, Object initializers, Object brand, PrivateFieldAddNode privateBrandAddNode)
protected static Object	withFields(Object target, Object constructor, ClassElementDefinitionRecord[] fields, Object[] initializers, Object brand, PrivateFieldAddNode privateBrandAddNode, com.oracle.truffle.js.nodes.access.InitializeInstanceElementsNode.InitializeFieldOrAccessorNode[] fieldNodes, JSFunctionCallNode callInit)

Methods inherited from class com.oracle.truffle.js.nodes.JavaScriptNode

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

Methods inherited from class com.oracle.truffle.js.nodes.JavaScriptBaseNode

getJSContext, getLanguage, getLanguageOptions, getRealm, hasOverloadedOperators

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

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.instrumentation.InstrumentableNode

findNearestNodeAt, findNearestNodeAt, getNodeObject, materializeInstrumentableNodes

Field Details

targetNode

protected JavaScriptNode targetNode

constructorNode

protected JavaScriptNode constructorNode

fieldsNode

protected JSTargetableNode fieldsNode

initializersNode

protected JSTargetableNode initializersNode

brandNode

protected JSTargetableNode brandNode

context

protected final JSContext context

Constructor Details

InitializeInstanceElementsNode

protected InitializeInstanceElementsNode(JSContext context,
 JavaScriptNode targetNode,
 JavaScriptNode constructorNode)

Method Details

create

public static JavaScriptNode create(JSContext context,
 JavaScriptNode targetNode,
 JavaScriptNode constructorNode)

create

public static InitializeInstanceElementsNode create(JSContext context)

executeStaticElements

public final Object executeStaticElements(Object targetConstructor,
 ClassElementDefinitionRecord[] staticElements)

executeEvaluated

protected abstract Object executeEvaluated(Object target,
 Object constructor,
 ClassElementDefinitionRecord[] fields,
 Object[] initializers,
 Object brand)

withFields

protected static Object withFields(Object target,
 Object constructor,
 ClassElementDefinitionRecord[] fields,
 Object[] initializers,
 Object brand,
 PrivateFieldAddNode privateBrandAddNode,
 com.oracle.truffle.js.nodes.access.InitializeInstanceElementsNode.InitializeFieldOrAccessorNode[] fieldNodes,
 JSFunctionCallNode callInit)

privateBrandAdd

protected static Object privateBrandAdd(Object target,
 Object constructor,
 Object fields,
 Object initializers,
 Object brand,
 PrivateFieldAddNode privateBrandAddNode)

copyUninitialized

protected JavaScriptNode copyUninitialized(Set<Class<? extends com.oracle.truffle.api.instrumentation.Tag>> materializedTags)

Overrides:

copyUninitialized in class JavaScriptNode