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 "DOMJITHeapRange.h"
29#include <wtf/Vector.h>
30#include <wtf/text/WTFString.h>
31
32#if ENABLE(JIT)
33
34namespace JSC { namespace DOMJIT {
35
36class AbstractHeap {
37public:
38 AbstractHeap(const String& name)
39 : m_name(name)
40 {
41 }
42
43 void setParent(AbstractHeap* parent)
44 {
45 ASSERT(!m_parent);
46 parent->m_children.append(this);
47 m_parent = parent;
48 }
49
50 bool isRoot() const { return !m_parent; }
51
52 JS_EXPORT_PRIVATE void compute(unsigned begin);
53
54 bool isComputed() const { return !!m_range; }
55 HeapRange range() const { return m_range; }
56
57 JS_EXPORT_PRIVATE void dump(PrintStream&) const;
58 JS_EXPORT_PRIVATE void shallowDump(PrintStream&) const;
59 JS_EXPORT_PRIVATE void deepDump(PrintStream&, unsigned indent = 0) const;
60
61private:
62 String m_name;
63 AbstractHeap* m_parent { nullptr };
64 Vector<AbstractHeap*> m_children { };
65 HeapRange m_range;
66};
67
68} }
69
70#endif
71