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

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• Author : Jamie Madill
  Date : 2014-02-20 13:31:36
  Hash : 5508f39d
  Message : Fix breaking the build with missing GetGlobalMaxTokenSize. Because the preprocessor is used independently from the compiler, we need a way to track max token size when we don't have access to the parse context with the current spec. BUG=angle:550 Change-Id: Idf5035ec2c001ee75f264151ab3c4e92f3cd44d7 Reviewed-on: https://chromium-review.googlesource.com/187140 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Shannon Woods <shannonwoods@chromium.org> Reviewed-by: Nicolas Capens <nicolascapens@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>

• src/compiler/preprocessor/Tokenizer.h

• //
  // Copyright (c) 2012-2014 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_TOKENIZER_H_
  #define COMPILER_PREPROCESSOR_TOKENIZER_H_
  
  #include "Input.h"
  #include "Lexer.h"
  #include "pp_utils.h"
  
  namespace pp
  {
  
  class Diagnostics;
  
  class Tokenizer : public Lexer
  {
    public:
      struct Context
      {
          Diagnostics* diagnostics;
  
          Input input;
          // The location where yytext points to. Token location should track
          // scanLoc instead of Input::mReadLoc because they may not be the same
          // if text is buffered up in the scanner input buffer.
          Input::Location scanLoc;
  
          bool leadingSpace;
          bool lineStart;
      };
  
      Tokenizer(Diagnostics* diagnostics);
      ~Tokenizer();
  
      bool init(size_t count, const char* const string[], const int length[]);
  
      void setFileNumber(int file);
      void setLineNumber(int line);
      void setMaxTokenSize(size_t maxTokenSize);
  
      virtual void lex(Token* token);
  
    private:
      PP_DISALLOW_COPY_AND_ASSIGN(Tokenizer);
      bool initScanner();
      void destroyScanner();
  
      void* mHandle;  // Scanner handle.
      Context mContext;  // Scanner extra.
      size_t mMaxTokenSize; // Maximum token size
  };
  
  }  // namespace pp
  #endif  // COMPILER_PREPROCESSOR_TOKENIZER_H_