Package org.htmlunit.corejs.javascript
Class NativeWeakSet
- java.lang.Object
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- org.htmlunit.corejs.javascript.ScriptableObject
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- org.htmlunit.corejs.javascript.IdScriptableObject
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- org.htmlunit.corejs.javascript.NativeWeakSet
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- All Implemented Interfaces:
java.io.Serializable
,ConstProperties
,DebuggableObject
,IdFunctionCall
,Scriptable
,SymbolScriptable
public class NativeWeakSet extends IdScriptableObject
This is an implementation of the ES6 WeakSet class. It is very similar to NativeWeakMap, with the exception being that it doesn't store any values. Java will GC the key only when there is no longer any reference to it other than the weak reference. That means that it is important that the "value" that we put in the WeakHashMap here is not one that contains the key.- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class org.htmlunit.corejs.javascript.ScriptableObject
ScriptableObject.KeyComparator
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Field Summary
Fields Modifier and Type Field Description private static int
Id_add
private static int
Id_constructor
private static int
Id_delete
private static int
Id_has
private boolean
instanceOfWeakSet
private java.util.WeakHashMap<Scriptable,java.lang.Boolean>
map
private static java.lang.Object
MAP_TAG
private static int
MAX_PROTOTYPE_ID
private static long
serialVersionUID
private static int
SymbolId_toStringTag
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Fields inherited from class org.htmlunit.corejs.javascript.ScriptableObject
CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST
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Fields inherited from interface org.htmlunit.corejs.javascript.Scriptable
NOT_FOUND
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Constructor Summary
Constructors Constructor Description NativeWeakSet()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
execIdCall(IdFunctionObject f, Context cx, Scriptable scope, Scriptable thisObj, java.lang.Object[] args)
'thisObj' will be null if invoked as constructor, in which case * instance of Scriptable should be returned.protected int
findPrototypeId(java.lang.String s)
protected int
findPrototypeId(Symbol k)
java.lang.String
getClassName()
Return the name of the class.(package private) static void
init(Scriptable scope, boolean sealed)
protected void
initPrototypeId(int id)
private java.lang.Object
js_add(java.lang.Object key)
private java.lang.Object
js_delete(java.lang.Object key)
private java.lang.Object
js_has(java.lang.Object key)
private void
readObject(java.io.ObjectInputStream stream)
private static NativeWeakSet
realThis(Scriptable thisObj, IdFunctionObject f)
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Methods inherited from class org.htmlunit.corejs.javascript.IdScriptableObject
activatePrototypeMap, addIdFunctionProperty, defaultGet, defaultHas, defaultPut, defineOwnProperty, delete, delete, ensureType, exportAsJSClass, fillConstructorProperties, findInstanceIdInfo, findInstanceIdInfo, get, get, getAttributes, getAttributes, getIds, getInstanceIdName, getInstanceIdValue, getMaxInstanceId, getOwnPropertyDescriptor, has, has, hasPrototypeMap, initPrototypeConstructor, initPrototypeMethod, initPrototypeMethod, initPrototypeMethod, initPrototypeValue, initPrototypeValue, instanceIdInfo, put, put, setAttributes, setInstanceIdAttributes, setInstanceIdValue
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Methods inherited from class org.htmlunit.corejs.javascript.ScriptableObject
addLazilyInitializedValue, applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildClassCtor, buildDataDescriptor, callMethod, callMethod, checkPropertyChange, checkPropertyDefinition, checkValidAttributes, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, delete, deleteProperty, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureSymbolScriptable, equivalentValues, get, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getBase, getBase, getClassPrototype, getDefaultValue, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGeneratorFunctionPrototype, getGetterOrSetter, getGetterOrSetter, getIds, getObjectPrototype, getParentScope, getProperty, getProperty, getProperty, getPropertyIds, getPrototype, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, has, hasInstance, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, put, putConst, putConstProperty, putImpl, putProperty, putProperty, putProperty, querySlot, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setCommonDescriptorProperties, setExternalArrayData, setGetterOrSetter, setParentScope, setPrototype, size
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Field Detail
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serialVersionUID
private static final long serialVersionUID
- See Also:
- Constant Field Values
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MAP_TAG
private static final java.lang.Object MAP_TAG
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instanceOfWeakSet
private boolean instanceOfWeakSet
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map
private transient java.util.WeakHashMap<Scriptable,java.lang.Boolean> map
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Id_constructor
private static final int Id_constructor
- See Also:
- Constant Field Values
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Id_add
private static final int Id_add
- See Also:
- Constant Field Values
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Id_delete
private static final int Id_delete
- See Also:
- Constant Field Values
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Id_has
private static final int Id_has
- See Also:
- Constant Field Values
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SymbolId_toStringTag
private static final int SymbolId_toStringTag
- See Also:
- Constant Field Values
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MAX_PROTOTYPE_ID
private static final int MAX_PROTOTYPE_ID
- See Also:
- Constant Field Values
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Method Detail
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init
static void init(Scriptable scope, boolean sealed)
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getClassName
public java.lang.String getClassName()
Description copied from class:ScriptableObject
Return the name of the class.This is typically the same name as the constructor. Classes extending ScriptableObject must implement this abstract method.
- Specified by:
getClassName
in interfaceScriptable
- Specified by:
getClassName
in classScriptableObject
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execIdCall
public java.lang.Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope, Scriptable thisObj, java.lang.Object[] args)
Description copied from class:IdScriptableObject
'thisObj' will be null if invoked as constructor, in which case * instance of Scriptable should be returned.- Specified by:
execIdCall
in interfaceIdFunctionCall
- Overrides:
execIdCall
in classIdScriptableObject
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js_add
private java.lang.Object js_add(java.lang.Object key)
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js_delete
private java.lang.Object js_delete(java.lang.Object key)
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js_has
private java.lang.Object js_has(java.lang.Object key)
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realThis
private static NativeWeakSet realThis(Scriptable thisObj, IdFunctionObject f)
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initPrototypeId
protected void initPrototypeId(int id)
- Overrides:
initPrototypeId
in classIdScriptableObject
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findPrototypeId
protected int findPrototypeId(Symbol k)
- Overrides:
findPrototypeId
in classIdScriptableObject
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findPrototypeId
protected int findPrototypeId(java.lang.String s)
- Overrides:
findPrototypeId
in classIdScriptableObject
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readObject
private void readObject(java.io.ObjectInputStream stream) throws java.io.IOException, java.lang.ClassNotFoundException
- Throws:
java.io.IOException
java.lang.ClassNotFoundException
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