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14957cd0 | 1 | /* |
81345200 | 2 | * Copyright (C) 2013, 2014 Apple Inc. All rights reserved. |
14957cd0 A |
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. AND ITS CONTRIBUTORS ``AS IS'' | |
14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | |
17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
23 | * THE POSSIBILITY OF SUCH DAMAGE. | |
24 | */ | |
25 | ||
26 | #include "config.h" | |
81345200 | 27 | #include "DFGDesiredWeakReferences.h" |
14957cd0 | 28 | |
81345200 A |
29 | #if ENABLE(DFG_JIT) |
30 | ||
31 | #include "CodeBlock.h" | |
32 | #include "DFGCommonData.h" | |
33 | #include "JSCInlines.h" | |
34 | ||
35 | namespace JSC { namespace DFG { | |
36 | ||
37 | DesiredWeakReferences::DesiredWeakReferences() | |
38 | : m_codeBlock(nullptr) | |
39 | { | |
40 | } | |
41 | ||
42 | DesiredWeakReferences::DesiredWeakReferences(CodeBlock* codeBlock) | |
43 | : m_codeBlock(codeBlock) | |
44 | { | |
45 | } | |
46 | ||
47 | DesiredWeakReferences::~DesiredWeakReferences() | |
48 | { | |
49 | } | |
50 | ||
51 | void DesiredWeakReferences::addLazily(JSCell* cell) | |
52 | { | |
53 | m_references.append(cell); | |
54 | } | |
55 | ||
56 | void DesiredWeakReferences::reallyAdd(VM& vm, CommonData* common) | |
57 | { | |
58 | for (unsigned i = 0; i < m_references.size(); i++) { | |
59 | JSCell* target = m_references[i]; | |
60 | common->weakReferences.append(WriteBarrier<JSCell>(vm, m_codeBlock->ownerExecutable(), target)); | |
61 | } | |
62 | } | |
63 | ||
64 | void DesiredWeakReferences::visitChildren(SlotVisitor& visitor) | |
65 | { | |
66 | for (unsigned i = m_references.size(); i--;) | |
67 | visitor.appendUnbarrieredPointer(&m_references[i]); | |
68 | } | |
69 | ||
70 | } } // namespace JSC::DFG | |
71 | ||
72 | #endif // ENABLE(DFG_JIT) |