blob: 429a1f55c1ed760d845f7f141a6e123608e79ccd [file] [log] [blame]
/*
* Copyright (C) 2018 Yusuke Suzuki <utatane.tea@gmail.com>.
* Copyright (C) 2018 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
#include "ObjectPropertyConditionSet.h"
#include "PropertyOffset.h"
#include "StructureSet.h"
namespace JSC {
namespace DOMJIT {
class GetterSetter;
}
class InByIdStatus;
struct DumpContext;
class InByIdVariant {
public:
InByIdVariant(const StructureSet& = StructureSet(), PropertyOffset = invalidOffset, const ObjectPropertyConditionSet& = ObjectPropertyConditionSet());
bool isSet() const { return !!m_structureSet.size(); }
explicit operator bool() const { return isSet(); }
const StructureSet& structureSet() const { return m_structureSet; }
StructureSet& structureSet() { return m_structureSet; }
// A non-empty condition set means that this is a prototype in-hit/in-miss.
const ObjectPropertyConditionSet& conditionSet() const { return m_conditionSet; }
PropertyOffset offset() const { return m_offset; }
bool isHit() const { return offset() != invalidOffset; }
bool attemptToMerge(const InByIdVariant& other);
void markIfCheap(SlotVisitor&);
bool finalize(VM&);
void dump(PrintStream&) const;
void dumpInContext(PrintStream&, DumpContext*) const;
private:
friend class InByIdStatus;
StructureSet m_structureSet;
ObjectPropertyConditionSet m_conditionSet;
PropertyOffset m_offset;
};
} // namespace JSC