projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | { | |
| ed1e77d3 A |
53 | m_references.add(cell); |
| 54 | } | |
| 55 | ||
| 56 | bool DesiredWeakReferences::contains(JSCell* cell) | |
| 57 | { | |
| 58 | return m_references.contains(cell); | |
| 81345200 A |
59 | } |
| 60 | ||
| 61 | void DesiredWeakReferences::reallyAdd(VM& vm, CommonData* common) | |
| 62 | { | |
| ed1e77d3 A |
63 | for (JSCell* target : m_references) { |
| 64 | if (Structure* structure = jsDynamicCast<Structure*>(target)) { | |
| 65 | common->weakStructureReferences.append( | |
| 66 | WriteBarrier<Structure>(vm, m_codeBlock->ownerExecutable(), structure)); | |
| 67 | } else { | |
| 68 | common->weakReferences.append( | |
| 69 | WriteBarrier<JSCell>(vm, m_codeBlock->ownerExecutable(), target)); | |
| 70 | } | |
| 81345200 A |
71 | } |
| 72 | } | |
| 73 | ||
| 74 | void DesiredWeakReferences::visitChildren(SlotVisitor& visitor) | |
| 75 | { | |
| ed1e77d3 A |
76 | for (JSCell* target : m_references) |
| 77 | visitor.appendUnbarrieredPointer(&target); | |
| 81345200 A |
78 | } |
| 79 | ||
| 80 | } } // namespace JSC::DFG | |
| 81 | ||
| 82 | #endif // ENABLE(DFG_JIT) |