kc3-lang/angle/src/compiler/translator/UnfoldShortCircuitAST.cpp

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• Author : Jamie Madill
  Date : 2016-12-12 14:42:19
  Hash : d7b1ab58
  Message : Fix up translator style. Using git cl format. BUG=angleproject:650 Change-Id: I7d3f98d2b0dcfb0a8de6c35327db74e55c28d761 Reviewed-on: https://chromium-review.googlesource.com/419059 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>

• src/compiler/translator/UnfoldShortCircuitAST.cpp

• //
  // 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.
  //
  
  #include "compiler/translator/UnfoldShortCircuitAST.h"
  
  namespace sh
  {
  
  namespace
  {
  
  // "x || y" is equivalent to "x ? true : y".
  TIntermTernary *UnfoldOR(TIntermTyped *x, TIntermTyped *y)
  {
      TConstantUnion *u = new TConstantUnion;
      u->setBConst(true);
      TIntermConstantUnion *trueNode =
          new TIntermConstantUnion(u, TType(EbtBool, EbpUndefined, EvqConst, 1));
      return new TIntermTernary(x, trueNode, y);
  }
  
  // "x && y" is equivalent to "x ? y : false".
  TIntermTernary *UnfoldAND(TIntermTyped *x, TIntermTyped *y)
  {
      TConstantUnion *u = new TConstantUnion;
      u->setBConst(false);
      TIntermConstantUnion *falseNode =
          new TIntermConstantUnion(u, TType(EbtBool, EbpUndefined, EvqConst, 1));
      return new TIntermTernary(x, y, falseNode);
  }
  
  }  // namespace anonymous
  
  bool UnfoldShortCircuitAST::visitBinary(Visit visit, TIntermBinary *node)
  {
      TIntermTernary *replacement = nullptr;
  
      switch (node->getOp())
      {
          case EOpLogicalOr:
              replacement = UnfoldOR(node->getLeft(), node->getRight());
              break;
          case EOpLogicalAnd:
              replacement = UnfoldAND(node->getLeft(), node->getRight());
              break;
          default:
              break;
      }
      if (replacement)
      {
          queueReplacement(node, replacement, OriginalNode::IS_DROPPED);
      }
      return true;
  }
  
  }  // namespace sh