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Commit	Line	Data
	1	/*
	2	* Copyright (C) 2014 Apple Inc. All rights reserved.
	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. ``AS IS'' AND ANY
	14	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
	17	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	18	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	19	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	20	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
	21	* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	23	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
	26	#ifndef GetByIdVariant_h
	27	#define GetByIdVariant_h
	28
	29	#include "IntendedStructureChain.h"
	30	#include "JSCJSValue.h"
	31	#include "PropertyOffset.h"
	32	#include "StructureSet.h"
	33
	34	namespace JSC {
	35
	36	class GetByIdStatus;
	37	struct DumpContext;
	38
	39	class GetByIdVariant {
	40	public:
	41	GetByIdVariant(
	42	const StructureSet& structureSet = StructureSet(),
	43	PropertyOffset offset = invalidOffset, JSValue specificValue = JSValue(),
	44	PassRefPtr<IntendedStructureChain> chain = nullptr)
	45	: m_structureSet(structureSet)
	46	, m_chain(chain)
	47	, m_specificValue(specificValue)
	48	, m_offset(offset)
	49	{
	50	if (!structureSet.size()) {
	51	ASSERT(offset == invalidOffset);
	52	ASSERT(!specificValue);
	53	ASSERT(!chain);
	54	}
	55	}
	56
	57	bool isSet() const { return !!m_structureSet.size(); }
	58	bool operator!() const { return !isSet(); }
	59	const StructureSet& structureSet() const { return m_structureSet; }
	60	IntendedStructureChain* chain() const { return const_cast<IntendedStructureChain*>(m_chain.get()); }
	61	JSValue specificValue() const { return m_specificValue; }
	62	PropertyOffset offset() const { return m_offset; }
	63
	64	void dump(PrintStream&) const;
	65	void dumpInContext(PrintStream&, DumpContext*) const;
	66
	67	private:
	68	friend class GetByIdStatus;
	69
	70	StructureSet m_structureSet;
	71	RefPtr<IntendedStructureChain> m_chain;
	72	JSValue m_specificValue;
	73	PropertyOffset m_offset;
	74	};
	75
	76	} // namespace JSC
	77
	78	#endif // GetByIdVariant_h
	79