forked from WebKit/WebKit
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathHeapCellType.h
More file actions
54 lines (44 loc) · 2.07 KB
/
HeapCellType.h
File metadata and controls
54 lines (44 loc) · 2.07 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
/*
* Copyright (C) 2017-2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "MarkedBlock.h"
#include <wtf/ForbidHeapAllocation.h>
namespace JSC {
class HeapCellType {
WTF_MAKE_NONCOPYABLE(HeapCellType);
WTF_FORBID_HEAP_ALLOCATION;
public:
JS_EXPORT_PRIVATE HeapCellType(CellAttributes);
JS_EXPORT_PRIVATE virtual ~HeapCellType();
CellAttributes attributes() const { return m_attributes; }
// The purpose of overriding this is to specialize the sweep for your destructors. This won't
// be called for no-destructor blocks. This must call MarkedBlock::finishSweepKnowingSubspace.
virtual void finishSweep(MarkedBlock::Handle&, FreeList*) const;
// These get called for large objects.
virtual void destroy(VM&, JSCell*) const;
private:
CellAttributes m_attributes;
};
} // namespace JSC