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/*
* Copyright (C) 2014 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.
*/
#ifndef GetByIdVariant_h
#define GetByIdVariant_h
#include "CallLinkStatus.h"
#include "ConstantStructureCheck.h"
#include "IntendedStructureChain.h"
#include "JSCJSValue.h"
#include "PropertyOffset.h"
#include "StructureSet.h"
namespace JSC {
class CallLinkStatus;
class GetByIdStatus;
struct DumpContext;
class GetByIdVariant {
public:
GetByIdVariant(
const StructureSet& structureSet = StructureSet(), PropertyOffset offset = invalidOffset,
const IntendedStructureChain* chain = nullptr,
std::unique_ptr<CallLinkStatus> callLinkStatus = nullptr);
~GetByIdVariant();
GetByIdVariant(const GetByIdVariant&);
GetByIdVariant& operator=(const GetByIdVariant&);
bool isSet() const { return !!m_structureSet.size(); }
bool operator!() const { return !isSet(); }
const StructureSet& structureSet() const { return m_structureSet; }
StructureSet& structureSet() { return m_structureSet; }
const ConstantStructureCheckVector& constantChecks() const { return m_constantChecks; }
JSObject* alternateBase() const { return m_alternateBase; }
StructureSet baseStructure() const;
PropertyOffset offset() const { return m_offset; }
CallLinkStatus* callLinkStatus() const { return m_callLinkStatus.get(); }
bool attemptToMerge(const GetByIdVariant& other);
void dump(PrintStream&) const;
void dumpInContext(PrintStream&, DumpContext*) const;
private:
friend class GetByIdStatus;
StructureSet m_structureSet;
ConstantStructureCheckVector m_constantChecks;
JSObject* m_alternateBase;
PropertyOffset m_offset;
std::unique_ptr<CallLinkStatus> m_callLinkStatus;
};
} // namespace JSC
#endif // GetByIdVariant_h
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