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Diffstat (limited to 'infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeCall.java')
-rw-r--r-- | infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeCall.java | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeCall.java b/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeCall.java new file mode 100644 index 0000000..b196ac3 --- /dev/null +++ b/infrastructure/rhino1_7R1/src/org/mozilla/javascript/NativeCall.java @@ -0,0 +1,154 @@ +/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Rhino code, released + * May 6, 1999. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1997-1999 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Norris Boyd + * Bob Jervis + * + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License Version 2 or later (the "GPL"), in which + * case the provisions of the GPL are applicable instead of those above. If + * you wish to allow use of your version of this file only under the terms of + * the GPL and not to allow others to use your version of this file under the + * MPL, indicate your decision by deleting the provisions above and replacing + * them with the notice and other provisions required by the GPL. If you do + * not delete the provisions above, a recipient may use your version of this + * file under either the MPL or the GPL. + * + * ***** END LICENSE BLOCK ***** */ + +package org.mozilla.javascript; + +/** + * This class implements the activation object. + * + * See ECMA 10.1.6 + * + * @see org.mozilla.javascript.Arguments + * @author Norris Boyd + */ +public final class NativeCall extends IdScriptableObject +{ + static final long serialVersionUID = -7471457301304454454L; + + private static final Object CALL_TAG = new Object(); + + static void init(Scriptable scope, boolean sealed) + { + NativeCall obj = new NativeCall(); + obj.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed); + } + + NativeCall() { } + + NativeCall(NativeFunction function, Scriptable scope, Object[] args) + { + this.function = function; + + setParentScope(scope); + // leave prototype null + + this.originalArgs = (args == null) ? ScriptRuntime.emptyArgs : args; + + // initialize values of arguments + int paramAndVarCount = function.getParamAndVarCount(); + int paramCount = function.getParamCount(); + if (paramAndVarCount != 0) { + for (int i = 0; i < paramCount; ++i) { + String name = function.getParamOrVarName(i); + Object val = i < args.length ? args[i] + : Undefined.instance; + defineProperty(name, val, PERMANENT); + } + } + + // initialize "arguments" property but only if it was not overridden by + // the parameter with the same name + if (!super.has("arguments", this)) { + defineProperty("arguments", new Arguments(this), PERMANENT); + } + + if (paramAndVarCount != 0) { + for (int i = paramCount; i < paramAndVarCount; ++i) { + String name = function.getParamOrVarName(i); + if (!super.has(name, this)) { + if (function.getParamOrVarConst(i)) + defineProperty(name, Undefined.instance, CONST); + else + defineProperty(name, Undefined.instance, PERMANENT); + } + } + } + } + + public String getClassName() + { + return "Call"; + } + + protected int findPrototypeId(String s) + { + return s.equals("constructor") ? Id_constructor : 0; + } + + protected void initPrototypeId(int id) + { + String s; + int arity; + if (id == Id_constructor) { + arity=1; s="constructor"; + } else { + throw new IllegalArgumentException(String.valueOf(id)); + } + initPrototypeMethod(CALL_TAG, id, s, arity); + } + + public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope, + Scriptable thisObj, Object[] args) + { + if (!f.hasTag(CALL_TAG)) { + return super.execIdCall(f, cx, scope, thisObj, args); + } + int id = f.methodId(); + if (id == Id_constructor) { + if (thisObj != null) { + throw Context.reportRuntimeError1("msg.only.from.new", "Call"); + } + ScriptRuntime.checkDeprecated(cx, "Call"); + NativeCall result = new NativeCall(); + result.setPrototype(getObjectPrototype(scope)); + return result; + } + throw new IllegalArgumentException(String.valueOf(id)); + } + + private static final int + Id_constructor = 1, + MAX_PROTOTYPE_ID = 1; + + NativeFunction function; + Object[] originalArgs; + + transient NativeCall parentActivationCall; +} + |