Class LambdaFunction
java.lang.Object
org.mozilla.javascript.ScriptableObject
org.mozilla.javascript.IdScriptableObject
org.mozilla.javascript.BaseFunction
org.mozilla.javascript.LambdaFunction
- All Implemented Interfaces:
Serializable, Callable, ConstProperties, Constructable, DebuggableObject, Function, IdFunctionCall, Scriptable, SymbolScriptable
- Direct Known Subclasses:
LambdaConstructor
This class implements a single JavaScript function that has the prototype of the built-in
Function class, and which is implemented using a single function that can easily be implemented
using a lambda expression.
- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from class ScriptableObject
ScriptableObject.KeyComparator
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate final int
private final String
private static final long
private final Callable
Fields inherited from class BaseFunction
GENERATOR_FUNCTION_CLASS
Fields inherited from class ScriptableObject
CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST
Fields inherited from interface Scriptable
NOT_FOUND
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Constructor Summary
ConstructorsConstructorDescriptionLambdaFunction
(Scriptable scope, int length, Callable target) Create a new built-in function, with no name, and no default prototype.LambdaFunction
(Scriptable scope, String name, int length, Callable target) Create a new function. -
Method Summary
Modifier and TypeMethodDescriptioncall
(Context cx, Scriptable scope, Scriptable thisObj, Object[] args) Should be overridden.construct
(Context cx, Scriptable scope, Object[] args) Call the function as a constructor.int
getArity()
int
Methods inherited from class BaseFunction
createObject, decompile, execIdCall, fillConstructorProperties, findInstanceIdInfo, findPrototypeId, getClassName, getClassPrototype, getInstanceIdName, getInstanceIdValue, getMaxInstanceId, getPrototypeProperty, getTypeOf, hasInstance, hasPrototypeProperty, init, initAsGeneratorFunction, initPrototypeId, isApply, isApplyOrCall, isGeneratorFunction, setImmunePrototypeProperty, setInstanceIdAttributes, setInstanceIdValue, setPrototypeProperty, setPrototypePropertyAttributes, setStandardPropertyAttributes, setupDefaultPrototype
Methods inherited from class IdScriptableObject
activatePrototypeMap, addIdFunctionProperty, defaultGet, defaultHas, defaultPut, defineOwnProperty, delete, delete, ensureType, exportAsJSClass, findInstanceIdInfo, findPrototypeId, get, get, getAttributes, getAttributes, getIds, getOwnPropertyDescriptor, has, has, hasPrototypeMap, initPrototypeConstructor, initPrototypeMethod, initPrototypeMethod, initPrototypeMethod, initPrototypeValue, initPrototypeValue, instanceIdInfo, put, put, setAttributes
Methods inherited from class 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, delete, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureSymbolScriptable, equivalentValues, get, 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, has, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, put, putConst, putConstProperty, putProperty, putProperty, putProperty, querySlot, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setCommonDescriptorProperties, setExternalArrayData, setGetterOrSetter, setParentScope, setPrototype, size
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface Scriptable
delete, delete, get, get, getDefaultValue, getIds, getParentScope, getPrototype, has, has, put, put, setParentScope, setPrototype
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Field Details
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serialVersionUID
private static final long serialVersionUID- See Also:
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target
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name
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length
private final int length
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Constructor Details
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LambdaFunction
Create a new function. The new object will have the Function prototype and no parent. The caller is responsible for binding this object to the appropriate scope.- Parameters:
scope
- scope of the calling contextname
- name of the functionlength
- the arity of the functiontarget
- an object that implements the function in Java. Since Callable is a single-function interface this will typically be implemented as a lambda.
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LambdaFunction
Create a new built-in function, with no name, and no default prototype.
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Method Details
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call
Description copied from class:BaseFunction
Should be overridden.- Specified by:
call
in interfaceCallable
- Specified by:
call
in interfaceFunction
- Overrides:
call
in classBaseFunction
- Parameters:
cx
- the current Context for this threadscope
- the scope to execute the function relative to. This is set to the value returned by getParentScope() except when the function is called from a closure.thisObj
- the JavaScriptthis
objectargs
- the array of arguments- Returns:
- the result of the call
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construct
Description copied from interface:Function
Call the function as a constructor.This method is invoked by the runtime in order to satisfy a use of the JavaScript
new
operator. This method is expected to create a new object and return it.- Specified by:
construct
in interfaceConstructable
- Specified by:
construct
in interfaceFunction
- Overrides:
construct
in classBaseFunction
- Parameters:
cx
- the current Context for this threadscope
- an enclosing scope of the caller except when the function is called from a closure.args
- the array of arguments- Returns:
- the allocated object
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getLength
public int getLength()- Overrides:
getLength
in classBaseFunction
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getArity
public int getArity()- Overrides:
getArity
in classBaseFunction
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getFunctionName
- Overrides:
getFunctionName
in classBaseFunction
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