1/*
2 *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
3 *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
4 *  Copyright (C) 2003, 2004, 2005, 2007, 2008 Apple Inc. All rights reserved.
5 *
6 *  This library is free software; you can redistribute it and/or
7 *  modify it under the terms of the GNU Library General Public
8 *  License as published by the Free Software Foundation; either
9 *  version 2 of the License, or (at your option) any later version.
10 *
11 *  This library is distributed in the hope that it will be useful,
12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 *  Library General Public License for more details.
15 *
16 *  You should have received a copy of the GNU Library General Public License
17 *  along with this library; see the file COPYING.LIB.  If not, write to
18 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 *  Boston, MA 02110-1301, USA.
20 *
21 */
22
23#ifndef JSAPIValueWrapper_h
24#define JSAPIValueWrapper_h
25
26#include "JSCJSValue.h"
27#include "JSCell.h"
28#include "CallFrame.h"
29#include "Structure.h"
30
31namespace JSC {
32
33    class JSAPIValueWrapper : public JSCell {
34        friend JSValue jsAPIValueWrapper(ExecState*, JSValue);
35    public:
36        typedef JSCell Base;
37
38        JSValue value() const { return m_value.get(); }
39
40        static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
41        {
42            return Structure::create(vm, globalObject, prototype, TypeInfo(APIValueWrapperType, OverridesVisitChildren | OverridesGetPropertyNames), info());
43        }
44
45        DECLARE_EXPORT_INFO;
46
47        static JSAPIValueWrapper* create(ExecState* exec, JSValue value)
48        {
49            VM& vm = exec->vm();
50            JSAPIValueWrapper* wrapper = new (NotNull, allocateCell<JSAPIValueWrapper>(vm.heap)) JSAPIValueWrapper(exec);
51            wrapper->finishCreation(vm, value);
52            return wrapper;
53        }
54
55    protected:
56        void finishCreation(VM& vm, JSValue value)
57        {
58            Base::finishCreation(vm);
59            m_value.set(vm, this, value);
60            ASSERT(!value.isCell());
61        }
62
63    private:
64        JSAPIValueWrapper(ExecState* exec)
65            : JSCell(exec->vm(), exec->vm().apiWrapperStructure.get())
66        {
67        }
68
69        WriteBarrier<Unknown> m_value;
70    };
71
72    inline JSValue jsAPIValueWrapper(ExecState* exec, JSValue value)
73    {
74        return JSAPIValueWrapper::create(exec, value);
75    }
76
77} // namespace JSC
78
79#endif // JSAPIValueWrapper_h
80