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/*
* Copyright (C) 2020 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
#if ENABLE(DFG_JIT)
#include "CallFrame.h"
#include "CodeOrigin.h"
#include <wtf/ThreadSafeRefCounted.h>
namespace JSC { namespace DFG {
class CodeOriginPool : public ThreadSafeRefCounted<CodeOriginPool> {
public:
static Ref<CodeOriginPool> create()
{
return adoptRef(*new CodeOriginPool);
}
CallSiteIndex addCodeOrigin(CodeOrigin);
CallSiteIndex addUniqueCallSiteIndex(CodeOrigin);
CallSiteIndex lastCallSite() const;
DisposableCallSiteIndex addDisposableCallSiteIndex(CodeOrigin);
void removeDisposableCallSiteIndex(DisposableCallSiteIndex);
void shrinkToFit();
CodeOrigin get(unsigned index) { return m_codeOrigins[index]; }
unsigned size() const { return m_codeOrigins.size(); }
private:
Vector<CodeOrigin, 0, UnsafeVectorOverflow> m_codeOrigins;
Vector<unsigned> m_callSiteIndexFreeList;
};
} } // namespace JSC::DFG
#endif // ENABLE(DFG_JIT)