1/*
2 *  Copyright (C) 2006 Maks Orlovich
3 *  Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
4 *
5 *  This library is free software; you can redistribute it and/or
6 *  modify it under the terms of the GNU Library 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.
9 *
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 *  Library General Public License for more details.
14 *
15 *  You should have received a copy of the GNU Library General Public License
16 *  along with this library; see the file COPYING.LIB.  If not, write to
17 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 *  Boston, MA 02110-1301, USA.
19 *
20 */
21
22#ifndef JSWrapperObject_h
23#define JSWrapperObject_h
24
25#include "JSObject.h"
26
27namespace JSC {
28
29    // This class is used as a base for classes such as String,
30    // Number, Boolean and Date which are wrappers for primitive types.
31    class JSWrapperObject : public JSNonFinalObject {
32    protected:
33        explicit JSWrapperObject(JSGlobalData&, Structure*);
34
35    public:
36        JSValue internalValue() const;
37        void setInternalValue(JSGlobalData&, JSValue);
38
39        static Structure* createStructure(JSGlobalData& globalData, JSValue prototype)
40        {
41            return Structure::create(globalData, prototype, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount, &s_info);
42        }
43
44    protected:
45        static const unsigned StructureFlags = OverridesMarkChildren | JSNonFinalObject::StructureFlags;
46
47    private:
48        virtual void markChildren(MarkStack&);
49
50        WriteBarrier<Unknown> m_internalValue;
51    };
52
53    inline JSWrapperObject::JSWrapperObject(JSGlobalData& globalData, Structure* structure)
54        : JSNonFinalObject(globalData, structure)
55    {
56    }
57
58    inline JSValue JSWrapperObject::internalValue() const
59    {
60        return m_internalValue.get();
61    }
62
63    inline void JSWrapperObject::setInternalValue(JSGlobalData& globalData, JSValue value)
64    {
65        ASSERT(value);
66        ASSERT(!value.isObject());
67        m_internalValue.set(globalData, this, value);
68    }
69
70} // namespace JSC
71
72#endif // JSWrapperObject_h
73