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+/* -*- 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
+ * Igor Bukanov
+ * Bob Jervis
+ * Mike McCabe
+ *
+ * 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 Object native object.
+ * See ECMA 15.2.
+ * @author Norris Boyd
+ */
+public class NativeObject extends IdScriptableObject
+{
+ static final long serialVersionUID = -6345305608474346996L;
+
+ private static final Object OBJECT_TAG = new Object();
+
+ static void init(Scriptable scope, boolean sealed)
+ {
+ NativeObject obj = new NativeObject();
+ obj.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed);
+ }
+
+ public String getClassName()
+ {
+ return "Object";
+ }
+
+ public String toString()
+ {
+ return ScriptRuntime.defaultObjectToString(this);
+ }
+
+ protected void initPrototypeId(int id)
+ {
+ String s;
+ int arity;
+ switch (id) {
+ case Id_constructor: arity=1; s="constructor"; break;
+ case Id_toString: arity=0; s="toString"; break;
+ case Id_toLocaleString: arity=0; s="toLocaleString"; break;
+ case Id_valueOf: arity=0; s="valueOf"; break;
+ case Id_hasOwnProperty: arity=1; s="hasOwnProperty"; break;
+ case Id_propertyIsEnumerable:
+ arity=1; s="propertyIsEnumerable"; break;
+ case Id_isPrototypeOf: arity=1; s="isPrototypeOf"; break;
+ case Id_toSource: arity=0; s="toSource"; break;
+ case Id___defineGetter__:
+ arity=2; s="__defineGetter__"; break;
+ case Id___defineSetter__:
+ arity=2; s="__defineSetter__"; break;
+ case Id___lookupGetter__:
+ arity=1; s="__lookupGetter__"; break;
+ case Id___lookupSetter__:
+ arity=1; s="__lookupSetter__"; break;
+ default: throw new IllegalArgumentException(String.valueOf(id));
+ }
+ initPrototypeMethod(OBJECT_TAG, id, s, arity);
+ }
+
+ public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope,
+ Scriptable thisObj, Object[] args)
+ {
+ if (!f.hasTag(OBJECT_TAG)) {
+ return super.execIdCall(f, cx, scope, thisObj, args);
+ }
+ int id = f.methodId();
+ switch (id) {
+ case Id_constructor: {
+ if (thisObj != null) {
+ // BaseFunction.construct will set up parent, proto
+ return f.construct(cx, scope, args);
+ }
+ if (args.length == 0 || args[0] == null
+ || args[0] == Undefined.instance)
+ {
+ return new NativeObject();
+ }
+ return ScriptRuntime.toObject(cx, scope, args[0]);
+ }
+
+ case Id_toLocaleString: // For now just alias toString
+ case Id_toString: {
+ if (cx.hasFeature(Context.FEATURE_TO_STRING_AS_SOURCE)) {
+ String s = ScriptRuntime.defaultObjectToSource(cx, scope,
+ thisObj, args);
+ int L = s.length();
+ if (L != 0 && s.charAt(0) == '(' && s.charAt(L - 1) == ')') {
+ // Strip () that surrounds toSource
+ s = s.substring(1, L - 1);
+ }
+ return s;
+ }
+ return ScriptRuntime.defaultObjectToString(thisObj);
+ }
+
+ case Id_valueOf:
+ return thisObj;
+
+ case Id_hasOwnProperty: {
+ boolean result;
+ if (args.length == 0) {
+ result = false;
+ } else {
+ String s = ScriptRuntime.toStringIdOrIndex(cx, args[0]);
+ if (s == null) {
+ int index = ScriptRuntime.lastIndexResult(cx);
+ result = thisObj.has(index, thisObj);
+ } else {
+ result = thisObj.has(s, thisObj);
+ }
+ }
+ return ScriptRuntime.wrapBoolean(result);
+ }
+
+ case Id_propertyIsEnumerable: {
+ boolean result;
+ if (args.length == 0) {
+ result = false;
+ } else {
+ String s = ScriptRuntime.toStringIdOrIndex(cx, args[0]);
+ if (s == null) {
+ int index = ScriptRuntime.lastIndexResult(cx);
+ result = thisObj.has(index, thisObj);
+ if (result && thisObj instanceof ScriptableObject) {
+ ScriptableObject so = (ScriptableObject)thisObj;
+ int attrs = so.getAttributes(index);
+ result = ((attrs & ScriptableObject.DONTENUM) == 0);
+ }
+ } else {
+ result = thisObj.has(s, thisObj);
+ if (result && thisObj instanceof ScriptableObject) {
+ ScriptableObject so = (ScriptableObject)thisObj;
+ int attrs = so.getAttributes(s);
+ result = ((attrs & ScriptableObject.DONTENUM) == 0);
+ }
+ }
+ }
+ return ScriptRuntime.wrapBoolean(result);
+ }
+
+ case Id_isPrototypeOf: {
+ boolean result = false;
+ if (args.length != 0 && args[0] instanceof Scriptable) {
+ Scriptable v = (Scriptable) args[0];
+ do {
+ v = v.getPrototype();
+ if (v == thisObj) {
+ result = true;
+ break;
+ }
+ } while (v != null);
+ }
+ return ScriptRuntime.wrapBoolean(result);
+ }
+
+ case Id_toSource:
+ return ScriptRuntime.defaultObjectToSource(cx, scope, thisObj,
+ args);
+ case Id___defineGetter__:
+ case Id___defineSetter__:
+ {
+ if (args.length < 2 || !(args[1] instanceof Callable)) {
+ Object badArg = (args.length >= 2 ? args[1]
+ : Undefined.instance);
+ throw ScriptRuntime.notFunctionError(badArg);
+ }
+ if (!(thisObj instanceof ScriptableObject)) {
+ throw Context.reportRuntimeError2(
+ "msg.extend.scriptable",
+ thisObj.getClass().getName(),
+ String.valueOf(args[0]));
+ }
+ ScriptableObject so = (ScriptableObject)thisObj;
+ String name = ScriptRuntime.toStringIdOrIndex(cx, args[0]);
+ int index = (name != null ? 0
+ : ScriptRuntime.lastIndexResult(cx));
+ Callable getterOrSetter = (Callable)args[1];
+ boolean isSetter = (id == Id___defineSetter__);
+ so.setGetterOrSetter(name, index, getterOrSetter, isSetter);
+ if (so instanceof NativeArray)
+ ((NativeArray)so).setDenseOnly(false);
+ }
+ return Undefined.instance;
+
+ case Id___lookupGetter__:
+ case Id___lookupSetter__:
+ {
+ if (args.length < 1 ||
+ !(thisObj instanceof ScriptableObject))
+ return Undefined.instance;
+
+ ScriptableObject so = (ScriptableObject)thisObj;
+ String name = ScriptRuntime.toStringIdOrIndex(cx, args[0]);
+ int index = (name != null ? 0
+ : ScriptRuntime.lastIndexResult(cx));
+ boolean isSetter = (id == Id___lookupSetter__);
+ Object gs;
+ for (;;) {
+ gs = so.getGetterOrSetter(name, index, isSetter);
+ if (gs != null)
+ break;
+ // If there is no getter or setter for the object itself,
+ // how about the prototype?
+ Scriptable v = so.getPrototype();
+ if (v == null)
+ break;
+ if (v instanceof ScriptableObject)
+ so = (ScriptableObject)v;
+ else
+ break;
+ }
+ if (gs != null)
+ return gs;
+ }
+ return Undefined.instance;
+
+ default:
+ throw new IllegalArgumentException(String.valueOf(id));
+ }
+ }
+
+// #string_id_map#
+
+ protected int findPrototypeId(String s)
+ {
+ int id;
+// #generated# Last update: 2007-05-09 08:15:55 EDT
+ L0: { id = 0; String X = null; int c;
+ L: switch (s.length()) {
+ case 7: X="valueOf";id=Id_valueOf; break L;
+ case 8: c=s.charAt(3);
+ if (c=='o') { X="toSource";id=Id_toSource; }
+ else if (c=='t') { X="toString";id=Id_toString; }
+ break L;
+ case 11: X="constructor";id=Id_constructor; break L;
+ case 13: X="isPrototypeOf";id=Id_isPrototypeOf; break L;
+ case 14: c=s.charAt(0);
+ if (c=='h') { X="hasOwnProperty";id=Id_hasOwnProperty; }
+ else if (c=='t') { X="toLocaleString";id=Id_toLocaleString; }
+ break L;
+ case 16: c=s.charAt(2);
+ if (c=='d') {
+ c=s.charAt(8);
+ if (c=='G') { X="__defineGetter__";id=Id___defineGetter__; }
+ else if (c=='S') { X="__defineSetter__";id=Id___defineSetter__; }
+ }
+ else if (c=='l') {
+ c=s.charAt(8);
+ if (c=='G') { X="__lookupGetter__";id=Id___lookupGetter__; }
+ else if (c=='S') { X="__lookupSetter__";id=Id___lookupSetter__; }
+ }
+ break L;
+ case 20: X="propertyIsEnumerable";id=Id_propertyIsEnumerable; break L;
+ }
+ if (X!=null && X!=s && !X.equals(s)) id = 0;
+ break L0;
+ }
+// #/generated#
+ return id;
+ }
+
+ private static final int
+ Id_constructor = 1,
+ Id_toString = 2,
+ Id_toLocaleString = 3,
+ Id_valueOf = 4,
+ Id_hasOwnProperty = 5,
+ Id_propertyIsEnumerable = 6,
+ Id_isPrototypeOf = 7,
+ Id_toSource = 8,
+ Id___defineGetter__ = 9,
+ Id___defineSetter__ = 10,
+ Id___lookupGetter__ = 11,
+ Id___lookupSetter__ = 12,
+ MAX_PROTOTYPE_ID = 12;
+
+// #/string_id_map#
+}