[apple/javascriptcore.git] / dfg / DFGDesiredTransitions.h

/*
 * Copyright (C) 2013, 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. 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.
 */

#ifndef DFGDesiredTransitions_h
#define DFGDesiredTransitions_h

#include <wtf/Vector.h>

#if ENABLE(DFG_JIT)

namespace JSC { 

class CodeBlock;
class ScriptExecutable;
class SlotVisitor;
class Structure;
class VM;

namespace DFG {

class CommonData;

class DesiredTransition {
public:
    DesiredTransition(CodeBlock*, ScriptExecutable*, Structure*, Structure*);

    void reallyAdd(VM&, CommonData*);
    
    void visitChildren(SlotVisitor&);

private:
    CodeBlock* m_codeBlock;
    ScriptExecutable* m_codeOriginOwner;
    Structure* m_oldStructure;
    Structure* m_newStructure;
};

class DesiredTransitions {
public:
    DesiredTransitions();
    ~DesiredTransitions();

    void addLazily(CodeBlock*, ScriptExecutable*, Structure*, Structure*);
    void reallyAdd(VM&, CommonData*);
    void visitChildren(SlotVisitor&);

private:
    Vector<DesiredTransition> m_transitions;
};

} } // namespace JSC::DFG

#endif // ENABLE(DFG_JIT)

#endif // DFGDesiredTransitions_h
Commit	Line	Data
14957cd0	1	/*
81345200	2	* Copyright (C) 2013, 2014 Apple Inc. All rights reserved.
14957cd0 A	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. AND ITS CONTRIBUTORS ``AS IS''
	14	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	15	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
	17	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	18	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	19	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	20	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	21	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	22	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
	23	* THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
81345200 A	26	#ifndef DFGDesiredTransitions_h
81345200 A	27	#define DFGDesiredTransitions_h
14957cd0	28
81345200	29	#include <wtf/Vector.h>
14957cd0	30
81345200	31	#if ENABLE(DFG_JIT)
14957cd0	32
81345200 A	33	namespace JSC {
	34
	35	class CodeBlock;
	36	class ScriptExecutable;
	37	class SlotVisitor;
	38	class Structure;
	39	class VM;
	40
	41	namespace DFG {
	42
	43	class CommonData;
	44
	45	class DesiredTransition {
	46	public:
	47	DesiredTransition(CodeBlock, ScriptExecutable, Structure, Structure);
	48
	49	void reallyAdd(VM&, CommonData*);
	50
	51	void visitChildren(SlotVisitor&);
	52
	53	private:
	54	CodeBlock* m_codeBlock;
	55	ScriptExecutable* m_codeOriginOwner;
	56	Structure* m_oldStructure;
	57	Structure* m_newStructure;
	58	};
	59
	60	class DesiredTransitions {
	61	public:
	62	DesiredTransitions();
	63	~DesiredTransitions();
	64
	65	void addLazily(CodeBlock, ScriptExecutable, Structure, Structure);
	66	void reallyAdd(VM&, CommonData*);
	67	void visitChildren(SlotVisitor&);
	68
	69	private:
	70	Vector<DesiredTransition> m_transitions;
	71	};
	72
	73	} } // namespace JSC::DFG
	74
	75	#endif // ENABLE(DFG_JIT)
	76
	77	#endif // DFGDesiredTransitions_h