dfg/DFGDesiredWatchpoints.cpp

   1 /*
   2  * Copyright (C) 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 "DFGDesiredWatchpoints.h"
  28
  29 #if ENABLE(DFG_JIT)
  30
  31 #include "ArrayBufferNeuteringWatchpoint.h"
  32 #include "CodeBlock.h"
  33 #include "JSCInlines.h"
  34
  35 namespace JSC { namespace DFG {
  36
  37 void ArrayBufferViewWatchpointAdaptor::add(
  38     CodeBlock* codeBlock, JSArrayBufferView* view, Watchpoint* watchpoint)
  39 {
  40     ArrayBufferNeuteringWatchpoint* neuteringWatchpoint =
  41         ArrayBufferNeuteringWatchpoint::create(*codeBlock->vm());
  42     neuteringWatchpoint->set()->add(watchpoint);
  43     codeBlock->addConstant(neuteringWatchpoint);
  44     codeBlock->vm()->heap.addReference(neuteringWatchpoint, view->buffer());
  45 }
  46
  47 DesiredWatchpoints::DesiredWatchpoints() { }
  48 DesiredWatchpoints::~DesiredWatchpoints() { }
  49
  50 void DesiredWatchpoints::addLazily(WatchpointSet* set)
  51 {
  52     m_sets.addLazily(set);
  53 }
  54
  55 void DesiredWatchpoints::addLazily(InlineWatchpointSet& set)
  56 {
  57     m_inlineSets.addLazily(&set);
  58 }
  59
  60 void DesiredWatchpoints::addLazily(JSArrayBufferView* view)
  61 {
  62     m_bufferViews.addLazily(view);
  63 }
  64
  65 void DesiredWatchpoints::addLazily(CodeOrigin codeOrigin, ExitKind exitKind, WatchpointSet* set)
  66 {
  67     m_sets.addLazily(codeOrigin, exitKind, set);
  68 }
  69
  70 void DesiredWatchpoints::addLazily(CodeOrigin codeOrigin, ExitKind exitKind, InlineWatchpointSet& set)
  71 {
  72     m_inlineSets.addLazily(codeOrigin, exitKind, &set);
  73 }
  74
  75 void DesiredWatchpoints::reallyAdd(CodeBlock* codeBlock, CommonData& commonData)
  76 {
  77     m_sets.reallyAdd(codeBlock, commonData);
  78     m_inlineSets.reallyAdd(codeBlock, commonData);
  79     m_bufferViews.reallyAdd(codeBlock, commonData);
  80 }
  81
  82 bool DesiredWatchpoints::areStillValid() const
  83 {
  84     return m_sets.areStillValid()
  85         && m_inlineSets.areStillValid()
  86         && m_bufferViews.areStillValid();
  87 }
  88
  89 } } // namespace JSC::DFG
  90
  91 #endif // ENABLE(DFG_JIT)
  92