Package org.mozilla.javascript
Class Arguments
java.lang.Object
org.mozilla.javascript.ScriptableObject
org.mozilla.javascript.IdScriptableObject
org.mozilla.javascript.Arguments
- All Implemented Interfaces:
Serializable
,ConstProperties
,DebuggableObject
,IdFunctionCall
,Scriptable
,SymbolScriptable
This class implements the "arguments" object.
See ECMA 10.1.8
- See Also:
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Nested Class Summary
Nested ClassesNested classes/interfaces inherited from class org.mozilla.javascript.ScriptableObject
ScriptableObject.KeyComparator
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate NativeCall
private Object[]
private int
private Object
private int
private Object
private static final String
private static final int
private static final int
private static final int
private static BaseFunction
private int
private Object
private static final int
private static final long
Fields inherited from class org.mozilla.javascript.ScriptableObject
CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST
Fields inherited from interface org.mozilla.javascript.Scriptable
NOT_FOUND
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprivate Object
arg
(int index) (package private) void
protected void
defineOwnProperty
(Context cx, Object id, ScriptableObject desc, boolean checkValid) Defines a property on an object.void
delete
(int index) Removes the indexed property from the object.protected int
Map name to id of instance property.get
(int index, Scriptable start) Returns the value of the indexed property or NOT_FOUND.Return the name of the class.private Object
getFromActivation
(int index) (package private) Object[]
getIds
(boolean getNonEnumerable, boolean getSymbols) protected String
getInstanceIdName
(int id) Map id back to property name it defines.protected Object
getInstanceIdValue
(int id) Get id value.protected int
Get maximum id findInstanceIdInfo can generate.protected ScriptableObject
getOwnPropertyDescriptor
(Context cx, Object id) boolean
has
(int index, Scriptable start) Returns true if the property index is defined.void
put
(int index, Scriptable start, Object value) Sets the value of the indexed property, creating it if need be.void
put
(String name, Scriptable start, Object value) Sets the value of the named property, creating it if need be.private void
putIntoActivation
(int index, Object value) private void
removeArg
(int index) private void
replaceArg
(int index, Object value) protected void
setInstanceIdAttributes
(int id, int attr) Update the attributes of the given instance property.protected void
setInstanceIdValue
(int id, Object value) Set or delete id value.private boolean
sharedWithActivation
(int index) Methods inherited from class org.mozilla.javascript.IdScriptableObject
activatePrototypeMap, addIdFunctionProperty, defaultGet, defaultHas, defaultPut, delete, delete, ensureType, execIdCall, exportAsJSClass, fillConstructorProperties, findInstanceIdInfo, findPrototypeId, findPrototypeId, get, get, getAttributes, getAttributes, has, has, hasPrototypeMap, initPrototypeConstructor, initPrototypeId, initPrototypeMethod, initPrototypeMethod, initPrototypeMethod, initPrototypeValue, initPrototypeValue, instanceIdInfo, put, setAttributes
Methods inherited from class org.mozilla.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, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureSymbolScriptable, equivalentValues, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getClassPrototype, getDefaultValue, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGeneratorFunctionPrototype, getGetterOrSetter, getGetterOrSetter, getIds, getObjectPrototype, getParentScope, getProperty, getProperty, getProperty, getPropertyIds, getPrototype, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, hasInstance, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, putConst, putConstProperty, putProperty, putProperty, putProperty, querySlot, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setCommonDescriptorProperties, setExternalArrayData, setGetterOrSetter, setParentScope, setPrototype, size
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Field Details
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serialVersionUID
private static final long serialVersionUID- See Also:
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FTAG
- See Also:
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Id_callee
private static final int Id_callee- See Also:
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Id_length
private static final int Id_length- See Also:
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Id_caller
private static final int Id_caller- See Also:
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MAX_INSTANCE_ID
private static final int MAX_INSTANCE_ID- See Also:
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iteratorMethod
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callerObj
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calleeObj
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lengthObj
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callerAttr
private int callerAttr -
calleeAttr
private int calleeAttr -
lengthAttr
private int lengthAttr -
activation
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args
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Constructor Details
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Arguments
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Method Details
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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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arg
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putIntoActivation
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getFromActivation
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replaceArg
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removeArg
private void removeArg(int index) -
has
Description copied from class:ScriptableObject
Returns true if the property index is defined.- Specified by:
has
in interfaceScriptable
- Overrides:
has
in classScriptableObject
- Parameters:
index
- the numeric index for the propertystart
- the object in which the lookup began- Returns:
- true if and only if the property was found in the object
- See Also:
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get
Description copied from class:ScriptableObject
Returns the value of the indexed property or NOT_FOUND.- Specified by:
get
in interfaceScriptable
- Overrides:
get
in classScriptableObject
- Parameters:
index
- the numeric index for the propertystart
- the object in which the lookup began- Returns:
- the value of the property (may be null), or NOT_FOUND
- See Also:
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put
Description copied from class:ScriptableObject
Sets the value of the indexed property, creating it if need be.- Specified by:
put
in interfaceScriptable
- Overrides:
put
in classScriptableObject
- Parameters:
index
- the numeric index for the propertystart
- the object whose property is being setvalue
- value to set the property to- See Also:
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put
Description copied from class:ScriptableObject
Sets the value of the named property, creating it if need be.If the property was created using defineProperty, the appropriate setter method is called.
If the property's attributes include READONLY, no action is taken. This method will actually set the property in the start object.
- Specified by:
put
in interfaceScriptable
- Overrides:
put
in classIdScriptableObject
- Parameters:
name
- the name of the propertystart
- the object whose property is being setvalue
- value to set the property to- See Also:
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delete
public void delete(int index) Description copied from class:ScriptableObject
Removes the indexed property from the object.If the property is not found, or it has the PERMANENT attribute, no action is taken.
- Specified by:
delete
in interfaceScriptable
- Overrides:
delete
in classScriptableObject
- Parameters:
index
- the numeric index for the property- See Also:
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getMaxInstanceId
protected int getMaxInstanceId()Description copied from class:IdScriptableObject
Get maximum id findInstanceIdInfo can generate.- Overrides:
getMaxInstanceId
in classIdScriptableObject
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findInstanceIdInfo
Description copied from class:IdScriptableObject
Map name to id of instance property. Should return 0 if not found or the result ofIdScriptableObject.instanceIdInfo(int, int)
.- Overrides:
findInstanceIdInfo
in classIdScriptableObject
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getInstanceIdName
Description copied from class:IdScriptableObject
Map id back to property name it defines.- Overrides:
getInstanceIdName
in classIdScriptableObject
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getInstanceIdValue
Description copied from class:IdScriptableObject
Get id value. * If id value is constant, descendant can call cacheIdValue to store * value in the permanent cache. * Default implementation creates IdFunctionObject instance for given id * and cache its value- Overrides:
getInstanceIdValue
in classIdScriptableObject
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setInstanceIdValue
Description copied from class:IdScriptableObject
Set or delete id value. If value == NOT_FOUND , the implementation should make sure that the following getInstanceIdValue return NOT_FOUND.- Overrides:
setInstanceIdValue
in classIdScriptableObject
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setInstanceIdAttributes
protected void setInstanceIdAttributes(int id, int attr) Description copied from class:IdScriptableObject
Update the attributes of the given instance property. Classes which want to support changing property attributes via Object.defineProperty must override this method. The default implementation throws InternalError.- Overrides:
setInstanceIdAttributes
in classIdScriptableObject
- Parameters:
id
- the instance property idattr
- the new attribute bitset
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getIds
- Overrides:
getIds
in classIdScriptableObject
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getOwnPropertyDescriptor
- Overrides:
getOwnPropertyDescriptor
in classIdScriptableObject
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defineOwnProperty
Description copied from class:ScriptableObject
Defines a property on an object.Based on [[DefineOwnProperty]] from 8.12.10 of the spec.
- Overrides:
defineOwnProperty
in classIdScriptableObject
- Parameters:
cx
- the current Contextid
- the name/index of the propertydesc
- the new property descriptor, as described in 8.6.1checkValid
- whether to perform validity checks
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defineAttributesForStrictMode
void defineAttributesForStrictMode()
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