2 * Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
3 * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef StringObjectThatMasqueradesAsUndefined_h
22 #define StringObjectThatMasqueradesAsUndefined_h
24 #include "JSGlobalObject.h"
25 #include "StringObject.h"
30 // WebCore uses this to make style.filter undetectable
31 class StringObjectThatMasqueradesAsUndefined : public StringObject {
33 typedef StringObject Base;
35 static StringObjectThatMasqueradesAsUndefined* create(ExecState* exec, const UString& string)
37 JSString* newString = jsString(exec, string);
38 Structure* structure = createStructure(exec->globalData(), exec->lexicalGlobalObject(), exec->lexicalGlobalObject()->stringPrototype());
39 StringObjectThatMasqueradesAsUndefined* object = new (allocateCell<StringObjectThatMasqueradesAsUndefined>(*exec->heap())) StringObjectThatMasqueradesAsUndefined(exec, structure);
40 object->finishCreation(exec->globalData(), newString);
45 StringObjectThatMasqueradesAsUndefined(ExecState* exec, Structure* structure)
46 : StringObject(exec->globalData(), structure)
50 static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue proto)
52 return Structure::create(globalData, globalObject, proto, TypeInfo(ObjectType, StructureFlags), &s_info);
55 static const unsigned StructureFlags = OverridesGetOwnPropertySlot | MasqueradesAsUndefined | OverridesGetPropertyNames | StringObject::StructureFlags;
60 #endif // StringObjectThatMasqueradesAsUndefined_h