1/*
2 * Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
3 * Copyright (C) 2001 Peter Kelly (pmk@post.com)
4 * Copyright (C) 2003-2019 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#pragma once
24
25#include "CallFrame.h"
26#include "JSCJSValue.h"
27#include "JSCast.h"
28#include "Structure.h"
29
30namespace JSC {
31
32class JSAPIValueWrapper final : public JSCell {
33 friend JSValue jsAPIValueWrapper(ExecState*, JSValue);
34public:
35 typedef JSCell Base;
36 static const unsigned StructureFlags = Base::StructureFlags | StructureIsImmortal;
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, OverridesGetPropertyNames), info());
43 }
44
45 DECLARE_EXPORT_INFO;
46
47 static JSAPIValueWrapper* create(VM& vm, JSValue value)
48 {
49 JSAPIValueWrapper* wrapper = new (NotNull, allocateCell<JSAPIValueWrapper>(vm.heap)) JSAPIValueWrapper(vm);
50 wrapper->finishCreation(vm, value);
51 return wrapper;
52 }
53
54protected:
55 void finishCreation(VM& vm, JSValue value)
56 {
57 Base::finishCreation(vm);
58 m_value.set(vm, this, value);
59 ASSERT(!value.isCell());
60 }
61
62private:
63 JSAPIValueWrapper(VM& vm)
64 : JSCell(vm, vm.apiWrapperStructure.get())
65 {
66 }
67
68 WriteBarrier<Unknown> m_value;
69};
70
71} // namespace JSC
72