kc3-lang/angle/src/compiler/translator/NodeSearch.h

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• Hash : b1a85f48
  Author :
  Date : 2014-08-19T15:23:24
  

  Rename compiler intermediate source files.
  
  This prevents confusion between "TIntermediate" and "TIntermNode".
  
  BUG=angle:711
  
  Change-Id: Ib7a086382a479db3f77bf2ab06ce321aa7b35d13
  Reviewed-on: https://chromium-review.googlesource.com/212936
  Tested-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Zhenyao Mo <zmo@chromium.org>
  Reviewed-by: Nicolas Capens <capn@chromium.org>
  

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• src/compiler/translator/NodeSearch.h

• //
  // Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // NodeSearch.h: Utilities for searching translator node graphs
  //
  
  #ifndef TRANSLATOR_NODESEARCH_H_
  #define TRANSLATOR_NODESEARCH_H_
  
  #include "compiler/translator/IntermNode.h"
  
  namespace sh
  {
  
  template <class Parent>
  class NodeSearchTraverser : public TIntermTraverser
  {
    public:
      NodeSearchTraverser()
          : mFound(false)
      {}
  
      bool found() const { return mFound; }
  
      static bool search(TIntermNode *node)
      {
          Parent searchTraverser;
          node->traverse(&searchTraverser);
          return searchTraverser.found();
      }
  
    protected:
      bool mFound;
  };
  
  class FindDiscard : public NodeSearchTraverser<FindDiscard>
  {
    public:
      virtual bool visitBranch(Visit visit, TIntermBranch *node)
      {
          switch (node->getFlowOp())
          {
            case EOpKill:
              mFound = true;
              break;
  
            default: break;
          }
  
          return !mFound;
      }
  };
  
  class FindSideEffectRewriting : public NodeSearchTraverser<FindSideEffectRewriting>
  {
    public:
      virtual bool visitBinary(Visit visit, TIntermBinary *node)
      {
          switch (node->getOp())
          {
            case EOpLogicalOr:
            case EOpLogicalAnd:
              if (node->getRight()->hasSideEffects())
              {
                  mFound = true;
              }
              break;
  
            default: break;
          }
  
          return !mFound;
      }
  };
  
  }
  
  #endif // TRANSLATOR_NODESEARCH_H_
  

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