bytecode/ExitKind.cpp

   1 /*
   2  * Copyright (C) 2012, 2013 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 #include "config.h"
  27 #include "ExitKind.h"
  28
  29 #include <wtf/Assertions.h>
  30 #include <wtf/PrintStream.h>
  31
  32 namespace JSC {
  33
  34 const char* exitKindToString(ExitKind kind)
  35 {
  36     switch (kind) {
  37     case ExitKindUnset:
  38         return "Unset";
  39     case BadType:
  40         return "BadType";
  41     case BadFunction:
  42         return "BadFunction";
  43     case BadExecutable:
  44         return "BadExecutable";
  45     case BadCache:
  46         return "BadCache";
  47     case BadWeakConstantCache:
  48         return "BadWeakConstantCache";
  49     case BadIndexingType:
  50         return "BadIndexingType";
  51     case Overflow:
  52         return "Overflow";
  53     case NegativeZero:
  54         return "NegativeZero";
  55     case StoreToHole:
  56         return "StoreToHole";
  57     case LoadFromHole:
  58         return "LoadFromHole";
  59     case OutOfBounds:
  60         return "OutOfBounds";
  61     case StoreToHoleOrOutOfBounds:
  62         return "StoreToHoleOrOutOfBounds";
  63     case InadequateCoverage:
  64         return "InadequateCoverage";
  65     case ArgumentsEscaped:
  66         return "ArgumentsEscaped";
  67     case NotStringObject:
  68         return "NotStringObject";
  69     case Uncountable:
  70         return "Uncountable";
  71     case UncountableWatchpoint:
  72         return "UncountableWatchpoint";
  73     default:
  74         RELEASE_ASSERT_NOT_REACHED();
  75         return "Unknown";
  76     }
  77 }
  78
  79 bool exitKindIsCountable(ExitKind kind)
  80 {
  81     switch (kind) {
  82     case ExitKindUnset:
  83         RELEASE_ASSERT_NOT_REACHED();
  84     case BadType:
  85     case Uncountable:
  86     case UncountableWatchpoint:
  87     case LoadFromHole: // Already counted directly by the baseline JIT.
  88     case StoreToHole: // Already counted directly by the baseline JIT.
  89     case OutOfBounds: // Already counted directly by the baseline JIT.
  90     case StoreToHoleOrOutOfBounds: // Already counted directly by the baseline JIT.
  91         return false;
  92     default:
  93         return true;
  94     }
  95 }
  96
  97 } // namespace JSC
  98
  99 namespace WTF {
 100
 101 void printInternal(PrintStream& out, JSC::ExitKind kind)
 102 {
 103     out.print(exitKindToString(kind));
 104 }
 105
 106 } // namespace WTF
 107