darling-JavaScriptCore/dfg/DFGDesiredWeakReferences.h
2017-08-12 09:48:01 -07:00

66 lines
1.9 KiB
C++

/*
* Copyright (C) 2013-2015 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. AND ITS CONTRIBUTORS ``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 ITS 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 <wtf/HashSet.h>
#if ENABLE(DFG_JIT)
namespace JSC {
class CodeBlock;
class JSCell;
class JSValue;
class SlotVisitor;
class VM;
namespace DFG {
class CommonData;
class DesiredWeakReferences {
public:
DesiredWeakReferences();
DesiredWeakReferences(CodeBlock*);
~DesiredWeakReferences();
void addLazily(JSCell*);
void addLazily(JSValue);
bool contains(JSCell*);
void reallyAdd(VM&, CommonData*);
void visitChildren(SlotVisitor&);
private:
CodeBlock* m_codeBlock;
HashSet<JSCell*> m_references;
};
} } // namespace JSC::DFG
#endif // ENABLE(DFG_JIT)