Package org.htmlunit.corejs.javascript
Class LambdaFunction
- 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.BaseFunction
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- org.htmlunit.corejs.javascript.LambdaFunction
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- All Implemented Interfaces:
java.io.Serializable
,Callable
,ConstProperties
,Constructable
,DebuggableObject
,Function
,IdFunctionCall
,Scriptable
,SymbolScriptable
- Direct Known Subclasses:
LambdaConstructor
public class LambdaFunction extends BaseFunction
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:
- 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 int
length
private java.lang.String
name
private static long
serialVersionUID
private Callable
target
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Fields inherited from class org.htmlunit.corejs.javascript.BaseFunction
GENERATOR_FUNCTION_CLASS, Id_arguments, Id_arity, Id_length, Id_name, Id_prototype, MAX_INSTANCE_ID
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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 LambdaFunction(Scriptable scope, int length, Callable target)
Create a new built-in function, with no name, and no default prototype.LambdaFunction(Scriptable scope, java.lang.String name, int length, Callable target)
Create a new function.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
call(Context cx, Scriptable scope, Scriptable thisObj, java.lang.Object[] args)
Should be overridden.Scriptable
construct(Context cx, Scriptable scope, java.lang.Object[] args)
Call the function as a constructor.int
getArity()
java.lang.String
getFunctionName()
int
getLength()
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Methods inherited from class org.htmlunit.corejs.javascript.BaseFunction
createObject, decompile, execIdCall, fillConstructorProperties, findInstanceIdInfo, findPrototypeId, getClassName, getClassPrototype, getInstanceIdName, getInstanceIdValue, getMaxInstanceId, getPrototypeProperty, getTypeOf, hasInstance, hasPrototypeProperty, init, init, initAsGeneratorFunction, initPrototypeId, isApply, isApplyOrCall, isGeneratorFunction, setImmunePrototypeProperty, setInstanceIdAttributes, setInstanceIdValue, setPrototypeProperty, setPrototypePropertyAttributes, setStandardPropertyAttributes, setupDefaultPrototype
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Methods inherited from class org.htmlunit.corejs.javascript.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
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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, has, 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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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.htmlunit.corejs.javascript.Scriptable
delete, delete, get, get, getDefaultValue, getIds, getParentScope, getPrototype, has, has, put, put, setParentScope, setPrototype
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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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target
private final transient Callable target
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name
private final java.lang.String name
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length
private final int length
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Constructor Detail
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LambdaFunction
public LambdaFunction(Scriptable scope, java.lang.String name, int length, Callable target)
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
public LambdaFunction(Scriptable scope, int length, Callable target)
Create a new built-in function, with no name, and no default prototype.
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Method Detail
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call
public java.lang.Object call(Context cx, Scriptable scope, Scriptable thisObj, java.lang.Object[] args)
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
public Scriptable construct(Context cx, Scriptable scope, java.lang.Object[] args)
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
public java.lang.String getFunctionName()
- Overrides:
getFunctionName
in classBaseFunction
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