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

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• Hash : f6d242ed
  Author :
  Date : 2017-10-12T17:21:06
  

  Wrap switch statements in blocks in HLSL
  
  If variables are declared inside a GLSL switch statement, they are
  scoped until the end of the switch statement. This is not compatible
  with HLSL rules, where the scoping is until the end of the case. To
  work around this, wrap switch statements in a block that declares
  the variables in HLSL.
  
  This is done after most other transformations done to the AST are
  complete, since some of the other transformations may introduce
  temporary variables.
  
  BUG=angleproject:2179
  TEST=angle_end2end_tests
  
  Change-Id: Id0bb89affe103177fd3d6a6b2f3619b5e1ada0a6
  Reviewed-on: https://chromium-review.googlesource.com/716381
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  

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• src/compiler/translator/WrapSwitchStatementsInBlocks.h

• //
  // Copyright (c) 2017 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.
  //
  // WrapSwitchStatementsInBlocks.h: Wrap switch statements in blocks and declare all switch-scoped
  // variables there to make the AST compatible with HLSL output.
  
  #ifndef COMPILER_TRANSLATOR_WRAPSWITCHSTATEMENTSINBLOCKS_H_
  #define COMPILER_TRANSLATOR_WRAPSWITCHSTATEMENTSINBLOCKS_H_
  
  namespace sh
  {
  
  class TIntermBlock;
  
  // Wrap switch statements in the AST into blocks when needed. Returns true if the AST was changed.
  bool WrapSwitchStatementsInBlocks(TIntermBlock *root);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_WRAPSWITCHSTATEMENTSINBLOCKS_H_
  

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