dfg/DFGVariableEventStream.h

   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
  39 namespace JSC { namespace DFG {
  40
  41 class VariableEventStream : public Vector<VariableEvent> {
  42 public:
  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
  55 private:
  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