org.mozilla.javascript

Class ScriptableObject

public abstract class ScriptableObject extends Object implements Scriptable, Serializable, DebuggableObject

This is the default implementation of the Scriptable interface. This class provides convenient default behavior that makes it easier to define host objects.

Various properties and methods of JavaScript objects can be conveniently defined using methods of ScriptableObject.

Classes extending ScriptableObject must define the getClassName method.

Author: Norris Boyd

See Also: Scriptable

Field Summary
static intDONTENUM
Property attribute indicating property is not enumerated.
static intEMPTY
The empty property attribute.
static intPERMANENT
Property attribute indicating property cannot be deleted.
static intREADONLY
Property attribute indicating assignment to this property is ignored.
Constructor Summary
ScriptableObject()
ScriptableObject(Scriptable scope, Scriptable prototype)
Method Summary
ObjectassociateValue(Object key, Object value)
Associate arbitrary application-specific value with this object.
static ObjectcallMethod(Scriptable obj, String methodName, Object[] args)
Call a method of an object.
static ObjectcallMethod(Context cx, Scriptable obj, String methodName, Object[] args)
Call a method of an object.
static voiddefineClass(Scriptable scope, Class clazz)
Defines JavaScript objects from a Java class that implements Scriptable.
static voiddefineClass(Scriptable scope, Class clazz, boolean sealed)
Defines JavaScript objects from a Java class, optionally allowing sealing.
static StringdefineClass(Scriptable scope, Class clazz, boolean sealed, boolean mapInheritance)
Defines JavaScript objects from a Java class, optionally allowing sealing and mapping of Java inheritance to JavaScript prototype-based inheritance.
voiddefineFunctionProperties(String[] names, Class clazz, int attributes)
Search for names in a class, adding the resulting methods as properties.
voiddefineProperty(String propertyName, Object value, int attributes)
Define a JavaScript property.
static voiddefineProperty(Scriptable destination, String propertyName, Object value, int attributes)
Utility method to add properties to arbitrary Scriptable object.
voiddefineProperty(String propertyName, Class clazz, int attributes)
Define a JavaScript property with getter and setter side effects.
voiddefineProperty(String propertyName, Object delegateTo, Method getter, Method setter, int attributes)
Define a JavaScript property.
voiddelete(String name)
Removes a named property from the object.
voiddelete(int index)
Removes the indexed property from the object.
static booleandeleteProperty(Scriptable obj, String name)
Removes the property from an object or its prototype chain.
static booleandeleteProperty(Scriptable obj, int index)
Removes the property from an object or its prototype chain.
protected ObjectequivalentValues(Object value)
Custom == operator.
Objectget(String name, Scriptable start)
Returns the value of the named property or NOT_FOUND.
Objectget(int index, Scriptable start)
Returns the value of the indexed property or NOT_FOUND.
Object[]getAllIds()
Returns an array of ids for the properties of the object.
ObjectgetAssociatedValue(Object key)
Get arbitrary application-specific value associated with this object.
intgetAttributes(String name, Scriptable start)
intgetAttributes(int index, Scriptable start)
intgetAttributes(String name)
Get the attributes of a named property.
intgetAttributes(int index)
Get the attributes of an indexed property.
abstract StringgetClassName()
Return the name of the class.
static ScriptablegetClassPrototype(Scriptable scope, String className)
Get the prototype for the named class.
ObjectgetDefaultValue(Class typeHint)
Implements the [[DefaultValue]] internal method.
static ScriptablegetFunctionPrototype(Scriptable scope)
Get the Function.prototype property.
Object[]getIds()
Returns an array of ids for the properties of the object.
static ScriptablegetObjectPrototype(Scriptable scope)
Get the Object.prototype property.
ScriptablegetParentScope()
Returns the parent (enclosing) scope of the object.
static ObjectgetProperty(Scriptable obj, String name)
Gets a named property from an object or any object in its prototype chain.
static ObjectgetProperty(Scriptable obj, int index)
Gets an indexed property from an object or any object in its prototype chain.
static Object[]getPropertyIds(Scriptable obj)
Returns an array of all ids from an object and its prototypes.
ScriptablegetPrototype()
Returns the prototype of the object.
static ScriptablegetTopLevelScope(Scriptable obj)
Get the global scope.
static ObjectgetTopScopeValue(Scriptable scope, Object key)
Get arbitrary application-specific value associated with the top scope of the given scope.
booleanhas(String name, Scriptable start)
Returns true if the named property is defined.
booleanhas(int index, Scriptable start)
Returns true if the property index is defined.
booleanhasInstance(Scriptable instance)
Implements the instanceof operator.
static booleanhasProperty(Scriptable obj, String name)
Returns whether a named property is defined in an object or any object in its prototype chain.
static booleanhasProperty(Scriptable obj, int index)
Returns whether an indexed property is defined in an object or any object in its prototype chain.
booleanisSealed()
Return true if this object is sealed.
voidput(String name, Scriptable start, Object value)
Sets the value of the named property, creating it if need be.
voidput(int index, Scriptable start, Object value)
Sets the value of the indexed property, creating it if need be.
static voidputProperty(Scriptable obj, String name, Object value)
Puts a named property in an object or in an object in its prototype chain.
static voidputProperty(Scriptable obj, int index, Object value)
Puts an indexed property in an object or in an object in its prototype chain.
voidsealObject()
Seal this object.
voidsetAttributes(String name, Scriptable start, int attributes)
voidsetAttributes(int index, Scriptable start, int attributes)
voidsetAttributes(String name, int attributes)
Set the attributes of a named property.
voidsetAttributes(int index, int attributes)
Set the attributes of an indexed property.
voidsetParentScope(Scriptable m)
Sets the parent (enclosing) scope of the object.
voidsetPrototype(Scriptable m)
Sets the prototype of the object.

Field Detail

DONTENUM

public static final int DONTENUM
Property attribute indicating property is not enumerated. Only enumerated properties will be returned by getIds().

See Also: ScriptableObject ScriptableObject ScriptableObject

EMPTY

public static final int EMPTY
The empty property attribute. Used by getAttributes() and setAttributes().

See Also: ScriptableObject ScriptableObject

PERMANENT

public static final int PERMANENT
Property attribute indicating property cannot be deleted.

See Also: ScriptableObject ScriptableObject ScriptableObject

READONLY

public static final int READONLY
Property attribute indicating assignment to this property is ignored.

See Also: ScriptableObject ScriptableObject ScriptableObject

Constructor Detail

ScriptableObject

public ScriptableObject()

ScriptableObject

public ScriptableObject(Scriptable scope, Scriptable prototype)

Method Detail

associateValue

public final Object associateValue(Object key, Object value)
Associate arbitrary application-specific value with this object. Value can only be associated with the given object and key only once. The method ignores any subsequent attempts to change the already associated value.

The associated values are not serilized.

Parameters: key key object to select particular value. value the value to associate

Returns: the passed value if the method is called first time for the given key or old value for any subsequent calls.

See Also: ScriptableObject

callMethod

public static Object callMethod(Scriptable obj, String methodName, Object[] args)
Call a method of an object.

Parameters: obj the JavaScript object methodName the name of the function property args the arguments for the call

See Also: getCurrentContext

callMethod

public static Object callMethod(Context cx, Scriptable obj, String methodName, Object[] args)
Call a method of an object.

Parameters: cx the Context object associated with the current thread. obj the JavaScript object methodName the name of the function property args the arguments for the call

defineClass

public static void defineClass(Scriptable scope, Class clazz)
Defines JavaScript objects from a Java class that implements Scriptable. If the given class has a method
 static void init(Context cx, Scriptable scope, boolean sealed);
or its compatibility form
 static void init(Scriptable scope);
then it is invoked and no further initialization is done.

However, if no such a method is found, then the class's constructors and methods are used to initialize a class in the following manner.

First, the zero-parameter constructor of the class is called to create the prototype. If no such constructor exists, a {@link EvaluatorException} is thrown.

Next, all methods are scanned for special prefixes that indicate that they have special meaning for defining JavaScript objects. These special prefixes are

If the method's name begins with "jsFunction_", a JavaScript function is created with a name formed from the rest of the Java method name following "jsFunction_". So a Java method named "jsFunction_foo" will define a JavaScript method "foo". Calling this JavaScript function will cause the Java method to be called. The parameters of the method must be of number and types as defined by the FunctionObject class. The JavaScript function is then added as a property of the prototype.

If the method's name begins with "jsStaticFunction_", it is handled similarly except that the resulting JavaScript function is added as a property of the constructor object. The Java method must be static. If the method's name begins with "jsGet_" or "jsSet_", the method is considered to define a property. Accesses to the defined property will result in calls to these getter and setter methods. If no setter is defined, the property is defined as READONLY.

If the method's name is "jsConstructor", the method is considered to define the body of the constructor. Only one method of this name may be defined. If no method is found that can serve as constructor, a Java constructor will be selected to serve as the JavaScript constructor in the following manner. If the class has only one Java constructor, that constructor is used to define the JavaScript constructor. If the the class has two constructors, one must be the zero-argument constructor (otherwise an {@link EvaluatorException} would have already been thrown when the prototype was to be created). In this case the Java constructor with one or more parameters will be used to define the JavaScript constructor. If the class has three or more constructors, an {@link EvaluatorException} will be thrown.

Finally, if there is a method

 static void finishInit(Scriptable scope, FunctionObject constructor,
                        Scriptable prototype)
it will be called to finish any initialization. The scope argument will be passed, along with the newly created constructor and the newly created prototype.

Parameters: scope The scope in which to define the constructor. clazz The Java class to use to define the JavaScript objects and properties.

Throws: IllegalAccessException if access is not available to a reflected class member InstantiationException if unable to instantiate the named class InvocationTargetException if an exception is thrown during execution of methods of the named class

See Also: Function FunctionObject READONLY ScriptableObject

defineClass

public static void defineClass(Scriptable scope, Class clazz, boolean sealed)
Defines JavaScript objects from a Java class, optionally allowing sealing. Similar to defineClass(Scriptable scope, Class clazz) except that sealing is allowed. An object that is sealed cannot have properties added or removed. Note that sealing is not allowed in the current ECMA/ISO language specification, but is likely for the next version.

Parameters: scope The scope in which to define the constructor. clazz The Java class to use to define the JavaScript objects and properties. The class must implement Scriptable. sealed Whether or not to create sealed standard objects that cannot be modified.

Throws: IllegalAccessException if access is not available to a reflected class member InstantiationException if unable to instantiate the named class InvocationTargetException if an exception is thrown during execution of methods of the named class

Since: 1.4R3

defineClass

public static String defineClass(Scriptable scope, Class clazz, boolean sealed, boolean mapInheritance)
Defines JavaScript objects from a Java class, optionally allowing sealing and mapping of Java inheritance to JavaScript prototype-based inheritance. Similar to defineClass(Scriptable scope, Class clazz) except that sealing and inheritance mapping are allowed. An object that is sealed cannot have properties added or removed. Note that sealing is not allowed in the current ECMA/ISO language specification, but is likely for the next version.

Parameters: scope The scope in which to define the constructor. clazz The Java class to use to define the JavaScript objects and properties. The class must implement Scriptable. sealed Whether or not to create sealed standard objects that cannot be modified. mapInheritance Whether or not to map Java inheritance to JavaScript prototype-based inheritance.

Returns: the class name for the prototype of the specified class

Throws: IllegalAccessException if access is not available to a reflected class member InstantiationException if unable to instantiate the named class InvocationTargetException if an exception is thrown during execution of methods of the named class

Since: 1.6R2

defineFunctionProperties

public void defineFunctionProperties(String[] names, Class clazz, int attributes)
Search for names in a class, adding the resulting methods as properties.

Uses reflection to find the methods of the given names. Then FunctionObjects are constructed from the methods found, and are added to this object as properties with the given names.

Parameters: names the names of the Methods to add as function properties clazz the class to search for the Methods attributes the attributes of the new properties

See Also: FunctionObject

defineProperty

public void defineProperty(String propertyName, Object value, int attributes)
Define a JavaScript property. Creates the property with an initial value and sets its attributes.

Parameters: propertyName the name of the property to define. value the initial value of the property attributes the attributes of the JavaScript property

See Also: Scriptable

defineProperty

public static void defineProperty(Scriptable destination, String propertyName, Object value, int attributes)
Utility method to add properties to arbitrary Scriptable object. If destination is instance of ScriptableObject, calls defineProperty there, otherwise calls put in destination ignoring attributes

defineProperty

public void defineProperty(String propertyName, Class clazz, int attributes)
Define a JavaScript property with getter and setter side effects. If the setter is not found, the attribute READONLY is added to the given attributes.

The getter must be a method with zero parameters, and the setter, if found, must be a method with one parameter.

Parameters: propertyName the name of the property to define. This name also affects the name of the setter and getter to search for. If the propertyId is "foo", then clazz will be searched for "getFoo" and "setFoo" methods. clazz the Java class to search for the getter and setter attributes the attributes of the JavaScript property

See Also: Scriptable

defineProperty

public void defineProperty(String propertyName, Object delegateTo, Method getter, Method setter, int attributes)
Define a JavaScript property. Use this method only if you wish to define getters and setters for a given property in a ScriptableObject. To create a property without special getter or setter side effects, use defineProperty(String,int). If setter is null, the attribute READONLY is added to the given attributes.

Several forms of getters or setters are allowed. In all cases the type of the value parameter can be any one of the following types: Object, String, boolean, Scriptable, byte, short, int, long, float, or double. The runtime will perform appropriate conversions based upon the type of the parameter (see description in FunctionObject). The first forms are nonstatic methods of the class referred to by 'this':

 Object getFoo();
 void setFoo(SomeType value);
Next are static methods that may be of any class; the object whose property is being accessed is passed in as an extra argument:
 static Object getFoo(ScriptableObject obj);
 static void setFoo(ScriptableObject obj, SomeType value);
Finally, it is possible to delegate to another object entirely using the delegateTo parameter. In this case the methods are nonstatic methods of the class delegated to, and the object whose property is being accessed is passed in as an extra argument:
 Object getFoo(ScriptableObject obj);
 void setFoo(ScriptableObject obj, SomeType value);

Parameters: propertyName the name of the property to define. delegateTo an object to call the getter and setter methods on, or null, depending on the form used above. getter the method to invoke to get the value of the property setter the method to invoke to set the value of the property attributes the attributes of the JavaScript property

delete

public void delete(String name)
Removes a named property from the object. If the property is not found, or it has the PERMANENT attribute, no action is taken.

Parameters: name the name of the property

delete

public void delete(int index)
Removes the indexed property from the object. If the property is not found, or it has the PERMANENT attribute, no action is taken.

Parameters: index the numeric index for the property

deleteProperty

public static boolean deleteProperty(Scriptable obj, String name)
Removes the property from an object or its prototype chain.

Searches for a property with name in obj or its prototype chain. If it is found, the object's delete method is called.

Parameters: obj a JavaScript object name a property name

Returns: true if the property doesn't exist or was successfully removed

Since: 1.5R2

deleteProperty

public static boolean deleteProperty(Scriptable obj, int index)
Removes the property from an object or its prototype chain.

Searches for a property with index in obj or its prototype chain. If it is found, the object's delete method is called.

Parameters: obj a JavaScript object index a property index

Returns: true if the property doesn't exist or was successfully removed

Since: 1.5R2

equivalentValues

protected Object equivalentValues(Object value)
Custom == operator. Must return {@link Scriptable#NOT_FOUND} if this object does not have custom equality operator for the given value, Boolean.TRUE if this object is equivalent to value, Boolean.FALSE if this object is not equivalent to value.

The default implementation returns Boolean.TRUE if this == value or {@link Scriptable#NOT_FOUND} otherwise. It indicates that by default custom equality is available only if value is this in which case true is returned.

get

public Object get(String name, Scriptable start)
Returns the value of the named property or NOT_FOUND. If the property was created using defineProperty, the appropriate getter method is called.

Parameters: name the name of the property start the object in which the lookup began

Returns: the value of the property (may be null), or NOT_FOUND

get

public Object get(int index, Scriptable start)
Returns the value of the indexed property or NOT_FOUND.

Parameters: index the numeric index for the property start the object in which the lookup began

Returns: the value of the property (may be null), or NOT_FOUND

getAllIds

public Object[] getAllIds()
Returns an array of ids for the properties of the object.

All properties, even those with attribute DONTENUM, are listed.

Returns: an array of java.lang.Objects with an entry for every listed property. Properties accessed via an integer index will have a corresponding Integer entry in the returned array. Properties accessed by a String will have a String entry in the returned array.

getAssociatedValue

public final Object getAssociatedValue(Object key)
Get arbitrary application-specific value associated with this object.

Parameters: key key object to select particular value.

See Also: ScriptableObject

getAttributes

public final int getAttributes(String name, Scriptable start)

Deprecated: Use {@link #getAttributes(String name)}. The engine always ignored the start argument.

getAttributes

public final int getAttributes(int index, Scriptable start)

Deprecated: Use {@link #getAttributes(int index)}. The engine always ignored the start argument.

getAttributes

public int getAttributes(String name)
Get the attributes of a named property. The property is specified by name as defined for has.

Parameters: name the identifier for the property

Returns: the bitset of attributes

Throws: EvaluatorException if the named property is not found

See Also: ScriptableObject READONLY DONTENUM PERMANENT EMPTY

getAttributes

public int getAttributes(int index)
Get the attributes of an indexed property.

Parameters: index the numeric index for the property

Returns: the bitset of attributes

Throws: EvaluatorException if the named property is not found is not found

See Also: ScriptableObject READONLY DONTENUM PERMANENT EMPTY

getClassName

public abstract String getClassName()
Return the name of the class. This is typically the same name as the constructor. Classes extending ScriptableObject must implement this abstract method.

getClassPrototype

public static Scriptable getClassPrototype(Scriptable scope, String className)
Get the prototype for the named class. For example, getClassPrototype(s, "Date") will first walk up the parent chain to find the outermost scope, then will search that scope for the Date constructor, and then will return Date.prototype. If any of the lookups fail, or the prototype is not a JavaScript object, then null will be returned.

Parameters: scope an object in the scope chain className the name of the constructor

Returns: the prototype for the named class, or null if it cannot be found.

getDefaultValue

public Object getDefaultValue(Class typeHint)
Implements the [[DefaultValue]] internal method.

Note that the toPrimitive conversion is a no-op for every type other than Object, for which [[DefaultValue]] is called. See ECMA 9.1.

A hint of null means "no hint".

Parameters: typeHint the type hint

Returns: the default value for the object See ECMA 8.6.2.6.

getFunctionPrototype

public static Scriptable getFunctionPrototype(Scriptable scope)
Get the Function.prototype property. See ECMA 15.3.4.

getIds

public Object[] getIds()
Returns an array of ids for the properties of the object.

Any properties with the attribute DONTENUM are not listed.

Returns: an array of java.lang.Objects with an entry for every listed property. Properties accessed via an integer index will have a corresponding Integer entry in the returned array. Properties accessed by a String will have a String entry in the returned array.

getObjectPrototype

public static Scriptable getObjectPrototype(Scriptable scope)
Get the Object.prototype property. See ECMA 15.2.4.

getParentScope

public Scriptable getParentScope()
Returns the parent (enclosing) scope of the object.

getProperty

public static Object getProperty(Scriptable obj, String name)
Gets a named property from an object or any object in its prototype chain.

Searches the prototype chain for a property named name.

Parameters: obj a JavaScript object name a property name

Returns: the value of a property with name name found in obj or any object in its prototype chain, or Scriptable.NOT_FOUND if not found

Since: 1.5R2

getProperty

public static Object getProperty(Scriptable obj, int index)
Gets an indexed property from an object or any object in its prototype chain.

Searches the prototype chain for a property with integral index index. Note that if you wish to look for properties with numerical but non-integral indicies, you should use getProperty(Scriptable,String) with the string value of the index.

Parameters: obj a JavaScript object index an integral index

Returns: the value of a property with index index found in obj or any object in its prototype chain, or Scriptable.NOT_FOUND if not found

Since: 1.5R2

getPropertyIds

public static Object[] getPropertyIds(Scriptable obj)
Returns an array of all ids from an object and its prototypes.

Parameters: obj a JavaScript object

Returns: an array of all ids from all object in the prototype chain. If a given id occurs multiple times in the prototype chain, it will occur only once in this list.

Since: 1.5R2

getPrototype

public Scriptable getPrototype()
Returns the prototype of the object.

getTopLevelScope

public static Scriptable getTopLevelScope(Scriptable obj)
Get the global scope.

Walks the parent scope chain to find an object with a null parent scope (the global object).

Parameters: obj a JavaScript object

Returns: the corresponding global scope

getTopScopeValue

public static Object getTopScopeValue(Scriptable scope, Object key)
Get arbitrary application-specific value associated with the top scope of the given scope. The method first calls {@link #getTopLevelScope(Scriptable scope)} and then searches the prototype chain of the top scope for the first object containing the associated value with the given key.

Parameters: scope the starting scope. key key object to select particular value.

See Also: ScriptableObject

has

public boolean has(String name, Scriptable start)
Returns true if the named property is defined.

Parameters: name the name of the property start the object in which the lookup began

Returns: true if and only if the property was found in the object

has

public boolean has(int index, Scriptable start)
Returns true if the property index is defined.

Parameters: index the numeric index for the property start the object in which the lookup began

Returns: true if and only if the property was found in the object

hasInstance

public boolean hasInstance(Scriptable instance)
Implements the instanceof operator.

This operator has been proposed to ECMA.

Parameters: instance The value that appeared on the LHS of the instanceof operator

Returns: true if "this" appears in value's prototype chain

hasProperty

public static boolean hasProperty(Scriptable obj, String name)
Returns whether a named property is defined in an object or any object in its prototype chain.

Searches the prototype chain for a property named name.

Parameters: obj a JavaScript object name a property name

Returns: the true if property was found

Since: 1.5R2

hasProperty

public static boolean hasProperty(Scriptable obj, int index)
Returns whether an indexed property is defined in an object or any object in its prototype chain.

Searches the prototype chain for a property with index index.

Parameters: obj a JavaScript object index a property index

Returns: the true if property was found

Since: 1.5R2

isSealed

public final boolean isSealed()
Return true if this object is sealed. It is an error to attempt to add or remove properties to a sealed object.

Returns: true if sealed, false otherwise.

Since: 1.4R3

put

public void put(String name, Scriptable start, Object value)
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.

Parameters: name the name of the property start the object whose property is being set value value to set the property to

put

public void put(int index, Scriptable start, Object value)
Sets the value of the indexed property, creating it if need be.

Parameters: index the numeric index for the property start the object whose property is being set value value to set the property to

putProperty

public static void putProperty(Scriptable obj, String name, Object value)
Puts a named property in an object or in an object in its prototype chain.

Seaches for the named property in the prototype chain. If it is found, the value of the property in obj is changed through a call to {@link Scriptable#put(String, Scriptable, Object)} on the prototype passing obj as the start argument. This allows the prototype to veto the property setting in case the prototype defines the property with [[ReadOnly]] attribute. If the property is not found, it is added in obj.

Parameters: obj a JavaScript object name a property name value any JavaScript value accepted by Scriptable.put

Since: 1.5R2

putProperty

public static void putProperty(Scriptable obj, int index, Object value)
Puts an indexed property in an object or in an object in its prototype chain.

Seaches for the indexed property in the prototype chain. If it is found, the value of the property in obj is changed through a call to {@link Scriptable#put(int, Scriptable, Object)} on the prototype passing obj as the start argument. This allows the prototype to veto the property setting in case the prototype defines the property with [[ReadOnly]] attribute. If the property is not found, it is added in obj.

Parameters: obj a JavaScript object index a property index value any JavaScript value accepted by Scriptable.put

Since: 1.5R2

sealObject

public void sealObject()
Seal this object. A sealed object may not have properties added or removed. Once an object is sealed it may not be unsealed.

Since: 1.4R3

setAttributes

public final void setAttributes(String name, Scriptable start, int attributes)

Deprecated: Use {@link #setAttributes(String name, int attributes)}. The engine always ignored the start argument.

setAttributes

public void setAttributes(int index, Scriptable start, int attributes)

Deprecated: Use {@link #setAttributes(int index, int attributes)}. The engine always ignored the start argument.

setAttributes

public void setAttributes(String name, int attributes)
Set the attributes of a named property. The property is specified by name as defined for has.

The possible attributes are READONLY, DONTENUM, and PERMANENT. Combinations of attributes are expressed by the bitwise OR of attributes. EMPTY is the state of no attributes set. Any unused bits are reserved for future use.

Parameters: name the name of the property attributes the bitset of attributes

Throws: EvaluatorException if the named property is not found

See Also: Scriptable READONLY DONTENUM PERMANENT EMPTY

setAttributes

public void setAttributes(int index, int attributes)
Set the attributes of an indexed property.

Parameters: index the numeric index for the property attributes the bitset of attributes

Throws: EvaluatorException if the named property is not found

See Also: Scriptable READONLY DONTENUM PERMANENT EMPTY

setParentScope

public void setParentScope(Scriptable m)
Sets the parent (enclosing) scope of the object.

setPrototype

public void setPrototype(Scriptable m)
Sets the prototype of the object.