com.oracle.truffle.js.nodes.access

Class PropertyCacheNode.ConstantObjectPrototypeChainShapeCheckNode

java.lang.Object

com.oracle.truffle.api.nodes.Node

com.oracle.truffle.js.nodes.JavaScriptBaseNode

com.oracle.truffle.js.nodes.access.PropertyCacheNode.ReceiverCheckNode

com.oracle.truffle.js.nodes.access.PropertyCacheNode.AbstractShapeCheckNode

com.oracle.truffle.js.nodes.access.PropertyCacheNode.AbstractAssumptionShapeCheckNode

com.oracle.truffle.js.nodes.access.PropertyCacheNode.ConstantObjectPrototypeChainShapeCheckNode

All Implemented Interfaces:

com.oracle.truffle.api.nodes.NodeInterface, PropertyCacheNode.ConstantObjectReceiverCheck, Cloneable

Enclosing class:

PropertyCacheNode<T extends PropertyCacheNode.CacheNode<T>>

protected static final class PropertyCacheNode.ConstantObjectPrototypeChainShapeCheckNode
extends PropertyCacheNode.AbstractAssumptionShapeCheckNode
implements PropertyCacheNode.ConstantObjectReceiverCheck

Checks that the object is constant and all the shapes of the prototype chain up to the given depth by assumption (valid and unchanged).

See Also:

JSConfig.SkipFinalShapeCheck

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

Field Summary

Fields inherited from class com.oracle.truffle.js.nodes.access.PropertyCacheNode.AbstractAssumptionShapeCheckNode

context

Constructor Summary

Constructors

Constructor and Description
ConstantObjectPrototypeChainShapeCheckNode(com.oracle.truffle.api.object.Shape shape, JSDynamicObject thisObj, Object key, int depth, JSContext context)

Method Summary

Modifier and Type	Method and Description
boolean	accept(Object thisObj) Check receiver shape, class, or instance.
void	clearExpectedObject()
int	getDepth()
Object	getExpectedObject()
com.oracle.truffle.api.object.DynamicObject	getStore(Object thisObj)
protected boolean	isUnstable()
boolean	isValid() Checks if all required assumptions are valid.

Methods inherited from class com.oracle.truffle.js.nodes.access.PropertyCacheNode.AbstractShapeCheckNode

getShape

Methods inherited from class com.oracle.truffle.js.nodes.access.PropertyCacheNode.ReceiverCheckNode

getCost

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

copy, onReplace

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

accept, adoptChildren, atomic, atomic, deepCopy, getChildren, getDebugProperties, getDescription, getEncapsulatingSourceSection, getLock, getParent, getRootNode, getSourceSection, insert, insert, isAdoptable, isSafelyReplaceableBy, lookupContextReference, lookupLanguageReference, notifyInserted, replace, replace, reportPolymorphicSpecialize, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstantObjectPrototypeChainShapeCheckNode

public ConstantObjectPrototypeChainShapeCheckNode(com.oracle.truffle.api.object.Shape shape,
                                                  JSDynamicObject thisObj,
                                                  Object key,
                                                  int depth,
                                                  JSContext context)

Method Detail

accept

public boolean accept(Object thisObj)

Description copied from class: PropertyCacheNode.ReceiverCheckNode

Check receiver shape, class, or instance.

Overrides:

accept in class PropertyCacheNode.AbstractShapeCheckNode

Returns:

whether the object is supported by the associated property cache node.

getStore

public com.oracle.truffle.api.object.DynamicObject getStore(Object thisObj)

Specified by:

getStore in class PropertyCacheNode.AbstractShapeCheckNode

Returns:

the DynamicObject that contains the property.

getDepth

public int getDepth()

Overrides:

getDepth in class PropertyCacheNode.AbstractShapeCheckNode

isValid

public boolean isValid()

Description copied from class: PropertyCacheNode.ReceiverCheckNode

Checks if all required assumptions are valid.

Specified by:

isValid in class PropertyCacheNode.AbstractShapeCheckNode

isUnstable

protected boolean isUnstable()

Overrides:

isUnstable in class PropertyCacheNode.ReceiverCheckNode

Returns:

true if a stable property assumption failed.

getExpectedObject

public Object getExpectedObject()

Specified by:

getExpectedObject in interface PropertyCacheNode.ConstantObjectReceiverCheck

clearExpectedObject

public void clearExpectedObject()

Specified by:

clearExpectedObject in interface PropertyCacheNode.ConstantObjectReceiverCheck