kc3-lang/angle/src/compiler/preprocessor/MacroExpander.h

• Show log

  Commit

• Hash : c3bef3e7
  Author :
  Date : 2018-10-03T07:35:09
  

  Allow 'defined' in define in non-WebGL.
  
  This is needed to pass dEQP conformance. Several of the harder dEQP
  tests around this behaviour are excluded from the mustpass list. This
  is presumably because the behaviours weren't implemented portably.
  Nevertheless we need to support conformant behaviour for GLES 2.0
  Contexts for the most simple uses.
  
  This also leaves the error behaviour intact for WebGL specs.
  
  Bug: angleproject:1335
  Change-Id: Ia80b4f71475efa928488ee6c2ee35c566d4602d4
  Reviewed-on: https://chromium-review.googlesource.com/c/1242013
  Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

Download

• src/compiler/preprocessor/MacroExpander.h

• //
  // Copyright (c) 2012 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.
  //
  
  #ifndef COMPILER_PREPROCESSOR_MACROEXPANDER_H_
  #define COMPILER_PREPROCESSOR_MACROEXPANDER_H_
  
  #include <memory>
  #include <vector>
  
  #include "compiler/preprocessor/Lexer.h"
  #include "compiler/preprocessor/Macro.h"
  #include "compiler/preprocessor/Preprocessor.h"
  
  namespace angle
  {
  
  namespace pp
  {
  
  class Diagnostics;
  struct SourceLocation;
  
  class MacroExpander : public Lexer
  {
    public:
      MacroExpander(Lexer *lexer,
                    MacroSet *macroSet,
                    Diagnostics *diagnostics,
                    const PreprocessorSettings &settings,
                    bool parseDefined);
      ~MacroExpander() override;
  
      void lex(Token *token) override;
  
    private:
      void getToken(Token *token);
      void ungetToken(const Token &token);
      bool isNextTokenLeftParen();
  
      bool pushMacro(std::shared_ptr<Macro> macro, const Token &identifier);
      void popMacro();
  
      bool expandMacro(const Macro &macro, const Token &identifier, std::vector<Token> *replacements);
  
      typedef std::vector<Token> MacroArg;
      bool collectMacroArgs(const Macro &macro,
                            const Token &identifier,
                            std::vector<MacroArg> *args,
                            SourceLocation *closingParenthesisLocation);
      void replaceMacroParams(const Macro &macro,
                              const std::vector<MacroArg> &args,
                              std::vector<Token> *replacements);
  
      struct MacroContext
      {
          MacroContext();
          ~MacroContext();
          bool empty() const;
          const Token &get();
          void unget();
  
          std::shared_ptr<Macro> macro;
          std::size_t index;
          std::vector<Token> replacements;
      };
  
      Lexer *mLexer;
      MacroSet *mMacroSet;
      Diagnostics *mDiagnostics;
      bool mParseDefined;
  
      std::unique_ptr<Token> mReserveToken;
      std::vector<MacroContext *> mContextStack;
      size_t mTotalTokensInContexts;
  
      PreprocessorSettings mSettings;
  
      bool mDeferReenablingMacros;
      std::vector<std::shared_ptr<Macro>> mMacrosToReenable;
  
      class ScopedMacroReenabler;
  };
  
  }  // namespace pp
  
  }  // namespace angle
  
  #endif  // COMPILER_PREPROCESSOR_MACROEXPANDER_H_
  

Download