1/*
2 * Copyright (C) 2012 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 DFGVariableEventStream_h
27#define DFGVariableEventStream_h
28
29#include <wtf/Platform.h>
30
31#if ENABLE(DFG_JIT)
32
33#include "DFGCommon.h"
34#include "DFGMinifiedGraph.h"
35#include "DFGVariableEvent.h"
36#include "Operands.h"
37#include <wtf/Vector.h>
38
39namespace JSC { namespace DFG {
40
41class VariableEventStream : public Vector<VariableEvent> {
42public:
43    void appendAndLog(const VariableEvent& event)
44    {
45#if DFG_ENABLE(DEBUG_VERBOSE)
46        logEvent(event);
47#endif
48        append(event);
49    }
50
51    void reconstruct(
52        CodeBlock*, CodeOrigin, MinifiedGraph&,
53        unsigned index, Operands<ValueRecovery>&) const;
54
55private:
56    bool tryToSetConstantRecovery(ValueRecovery&, CodeBlock*, MinifiedNode*) const;
57
58    void logEvent(const VariableEvent&);
59};
60
61} } // namespace JSC::DFG
62
63#endif // ENABLE(DFG_JIT)
64
65#endif // DFGVariableEventStream_h
66
67