kc3-lang/angle/src/compiler/translator/tree_util/ReplaceVariable.h

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• Hash : df90bbc5
  Author :
  Date : 2024-07-12T18:04:53
  

  Refactoring: move angle::HashMap and HashSet to own header
  
  Underlying abseil includes pull in a large set of headers
  
  Bug: angleproject:42266508
  Change-Id: Icee47143a8a59bb0795a054b67c0aa4ddcfca4d4
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5704137
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/compiler/translator/tree_util/ReplaceVariable.h

• //
  // Copyright 2018 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.
  //
  // ReplaceVariable.h: Replace all references to a specific variable in the AST with references to
  // another variable.
  
  #ifndef COMPILER_TRANSLATOR_TREEUTIL_REPLACEVARIABLE_H_
  #define COMPILER_TRANSLATOR_TREEUTIL_REPLACEVARIABLE_H_
  
  #include "common/angleutils.h"
  #include "common/hash_containers.h"
  
  namespace sh
  {
  
  class TCompiler;
  class TIntermBlock;
  class TIntermTyped;
  class TSymbolTable;
  class TVariable;
  
  [[nodiscard]] bool ReplaceVariable(TCompiler *compiler,
                                     TIntermBlock *root,
                                     const TVariable *toBeReplaced,
                                     const TVariable *replacement);
  [[nodiscard]] bool ReplaceVariableWithTyped(TCompiler *compiler,
                                              TIntermBlock *root,
                                              const TVariable *toBeReplaced,
                                              const TIntermTyped *replacement);
  
  using VariableReplacementMap = angle::HashMap<const TVariable *, const TIntermTyped *>;
  
  // Replace a set of variables with their corresponding expression.
  [[nodiscard]] bool ReplaceVariables(TCompiler *compiler,
                                      TIntermBlock *root,
                                      const VariableReplacementMap &variableMap);
  
  // Find all declarators, and replace the TVariable they are declaring with a duplicate.  This is
  // used to support deepCopy of TIntermBlock and TIntermLoop nodes that include declarations.
  // Replacements already present in variableMap are preserved.
  void GetDeclaratorReplacements(TSymbolTable *symbolTable,
                                 TIntermBlock *root,
                                 VariableReplacementMap *variableMap);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEUTIL_REPLACEVARIABLE_H_
  

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