JavaScriptCore-7601.1.46.3.tar.gz

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

/*
 * Copyright (C) 2012, 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,
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#ifndef DFGVariableEventStream_h
#define DFGVariableEventStream_h

#if ENABLE(DFG_JIT)

#include "DFGCommon.h"
#include "DFGMinifiedGraph.h"
#include "DFGVariableEvent.h"
#include "Operands.h"
#include "ValueRecovery.h"
#include <wtf/Vector.h>

namespace JSC { namespace DFG {

class VariableEventStream : public Vector<VariableEvent> {
public:
    void appendAndLog(const VariableEvent& event)
    {
        append(event);
    }
    
    void reconstruct(
        CodeBlock*, CodeOrigin, MinifiedGraph&,
        unsigned index, Operands<ValueRecovery>&) const;

private:
    bool tryToSetConstantRecovery(ValueRecovery&, MinifiedNode*) const;
    
    void logEvent(const VariableEvent&);
};

} } // namespace JSC::DFG

#endif // ENABLE(DFG_JIT)

#endif // DFGVariableEventStream_h