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

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• Author : Jamie Madill
  Date : 2017-11-21 19:22:44
  Hash : acf2f3ad
  Message : Apply Chromium style fixes. This addresses several minor code quality issues that are validated in Chromium, but not yet applied to ANGLE: * constructors and destructors must be defined out-of-line * auto is not allowed for simple pointer types * use override everywhere instead of virtual * virtual functions must also be defined out-of-line Slightly reduces binary size for me (~2k on Win, 150k on Linux). Bug: angleproject:1569 Change-Id: I073ca3365188caf5f29fb28d9eb207903c1843e6 Reviewed-on: https://chromium-review.googlesource.com/779959 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

• src/compiler/preprocessor/DirectiveParser.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_DIRECTIVEPARSER_H_
  #define COMPILER_PREPROCESSOR_DIRECTIVEPARSER_H_
  
  #include "compiler/preprocessor/Lexer.h"
  #include "compiler/preprocessor/Macro.h"
  #include "compiler/preprocessor/SourceLocation.h"
  
  namespace pp
  {
  
  class Diagnostics;
  class DirectiveHandler;
  class Tokenizer;
  
  class DirectiveParser : public Lexer
  {
    public:
      DirectiveParser(Tokenizer *tokenizer,
                      MacroSet *macroSet,
                      Diagnostics *diagnostics,
                      DirectiveHandler *directiveHandler,
                      int maxMacroExpansionDepth);
      ~DirectiveParser() override;
  
      void lex(Token *token) override;
  
    private:
      void parseDirective(Token *token);
      void parseDefine(Token *token);
      void parseUndef(Token *token);
      void parseIf(Token *token);
      void parseIfdef(Token *token);
      void parseIfndef(Token *token);
      void parseElse(Token *token);
      void parseElif(Token *token);
      void parseEndif(Token *token);
      void parseError(Token *token);
      void parsePragma(Token *token);
      void parseExtension(Token *token);
      void parseVersion(Token *token);
      void parseLine(Token *token);
  
      bool skipping() const;
      void parseConditionalIf(Token *token);
      int parseExpressionIf(Token *token);
      int parseExpressionIfdef(Token *token);
  
      struct ConditionalBlock
      {
          std::string type;
          SourceLocation location;
          bool skipBlock;
          bool skipGroup;
          bool foundValidGroup;
          bool foundElseGroup;
  
          ConditionalBlock()
              : skipBlock(false), skipGroup(false), foundValidGroup(false), foundElseGroup(false)
          {
          }
      };
      bool mPastFirstStatement;
      bool mSeenNonPreprocessorToken;  // Tracks if a non-preprocessor token has been seen yet.  Some
                                       // macros, such as
                                       // #extension must be declared before all shader code.
      std::vector<ConditionalBlock> mConditionalStack;
      Tokenizer *mTokenizer;
      MacroSet *mMacroSet;
      Diagnostics *mDiagnostics;
      DirectiveHandler *mDirectiveHandler;
      int mShaderVersion;
      int mMaxMacroExpansionDepth;
  };
  
  }  // namespace pp
  
  #endif  // COMPILER_PREPROCESSOR_DIRECTIVEPARSER_H_