1/*
2 * Copyright (C) 2017 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 "JSHeapFinalizerPrivate.h"
29#include <wtf/PrintStream.h>
30
31namespace JSC {
32
33class VM;
34
35class HeapFinalizerCallback {
36public:
37 HeapFinalizerCallback(JSHeapFinalizer finalizer = nullptr, void *userData = nullptr)
38 : m_finalizer(finalizer)
39 , m_userData(userData)
40 {
41 }
42
43 bool operator==(const HeapFinalizerCallback& other) const
44 {
45 return m_finalizer == other.m_finalizer
46 && m_userData == other.m_userData;
47 }
48
49 bool operator!=(const HeapFinalizerCallback& other) const
50 {
51 return !(*this == other);
52 }
53
54 explicit operator bool() const
55 {
56 return *this != HeapFinalizerCallback();
57 }
58
59 void dump(PrintStream&) const;
60
61 void run(VM&) const;
62
63private:
64 JSHeapFinalizer m_finalizer;
65 void *m_userData;
66};
67
68} // namespace JSC
69
70