All Downloads are FREE. Search and download functionalities are using the official Maven repository.
Please wait. This can take some minutes ...
Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $
You can buy this project and download/modify it how often you want.
org.htmlunit.corejs.javascript.ArrowFunction Maven / Gradle / Ivy
/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.htmlunit.corejs.javascript;
/** The class for Arrow Function Definitions EcmaScript 6 Rev 14, March 8, 2013 Draft spec , 13.2 */
public class ArrowFunction extends BaseFunction {
private static final long serialVersionUID = -7377989503697220633L;
private final Callable targetFunction;
private final Scriptable boundThis;
public ArrowFunction(
Context cx, Scriptable scope, Callable targetFunction, Scriptable boundThis) {
this.targetFunction = targetFunction;
this.boundThis = boundThis;
ScriptRuntime.setFunctionProtoAndParent(this, cx, scope, false);
Function thrower = ScriptRuntime.typeErrorThrower(cx);
NativeObject throwing = new NativeObject();
ScriptRuntime.setBuiltinProtoAndParent(throwing, scope, TopLevel.Builtins.Object);
throwing.put("get", throwing, thrower);
throwing.put("set", throwing, thrower);
throwing.put("enumerable", throwing, Boolean.FALSE);
throwing.put("configurable", throwing, Boolean.FALSE);
throwing.preventExtensions();
this.defineOwnProperty(cx, "caller", throwing, false);
this.defineOwnProperty(cx, "arguments", throwing, false);
}
@Override
public Object call(Context cx, Scriptable scope, Scriptable thisObj, Object[] args) {
Scriptable callThis = boundThis != null ? boundThis : ScriptRuntime.getTopCallScope(cx);
return targetFunction.call(cx, scope, callThis, args);
}
@Override
public Scriptable construct(Context cx, Scriptable scope, Object[] args) {
throw ScriptRuntime.typeErrorById("msg.not.ctor", decompile(0, 0));
}
@Override
public boolean hasInstance(Scriptable instance) {
if (targetFunction instanceof Function) {
return ((Function) targetFunction).hasInstance(instance);
}
throw ScriptRuntime.typeErrorById("msg.not.ctor");
}
@Override
public int getLength() {
if (targetFunction instanceof BaseFunction) {
return ((BaseFunction) targetFunction).getLength();
}
return 0;
}
@Override
public int getArity() {
return getLength();
}
@Override
String decompile(int indent, int flags) {
if (targetFunction instanceof BaseFunction) {
return ((BaseFunction) targetFunction).decompile(indent, flags);
}
return super.decompile(indent, flags);
}
static boolean equalObjectGraphs(ArrowFunction f1, ArrowFunction f2, EqualObjectGraphs eq) {
return eq.equalGraphs(f1.boundThis, f2.boundThis)
&& eq.equalGraphs(f1.targetFunction, f2.targetFunction);
}
}