1/*
2 * Copyright (C) 2016 Apple Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "InternalFunction.h"
29
30namespace JSC {
31
32class ProxyObject;
33
34class ProxyRevoke final : public InternalFunction {
35public:
36 typedef InternalFunction Base;
37 static const unsigned StructureFlags = Base::StructureFlags;
38
39 template<typename CellType, SubspaceAccess mode>
40 static IsoSubspace* subspaceFor(VM& vm)
41 {
42 return vm.proxyRevokeSpace<mode>();
43 }
44
45 static ProxyRevoke* create(VM&, Structure*, ProxyObject*);
46
47 DECLARE_INFO;
48
49 static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
50 {
51 return Structure::create(vm, globalObject, prototype, TypeInfo(InternalFunctionType, StructureFlags), info());
52 }
53
54 void finishCreation(VM&, const char* name, ProxyObject*);
55 static void visitChildren(JSCell*, SlotVisitor&);
56 JSValue proxy() { return m_proxy.get(); }
57 void setProxyToNull(VM& vm) { return m_proxy.set(vm, this, jsNull()); }
58
59private:
60 ProxyRevoke(VM&, Structure*);
61
62 WriteBarrier<Unknown> m_proxy;
63};
64
65} // namespace JSC
66