kc3-lang/angle/src/compiler/preprocessor/Preprocessor.cpp

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• Author : Jamie Madill
  Date : 2016-12-12 17:38:48
  Hash : f832c9dd
  Message : Fix style in the preprocessor. Again using git cl format. BUG=angleproject:650 Change-Id: I8898d00bfc6a50db50bffd2cc30c3eda7c08c6c2 Reviewed-on: https://chromium-review.googlesource.com/419097 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>

• src/compiler/preprocessor/Preprocessor.cpp

• //
  // Copyright (c) 2011 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.
  //
  
  #include "compiler/preprocessor/Preprocessor.h"
  
  #include "common/debug.h"
  #include "compiler/preprocessor/DiagnosticsBase.h"
  #include "compiler/preprocessor/DirectiveParser.h"
  #include "compiler/preprocessor/Macro.h"
  #include "compiler/preprocessor/MacroExpander.h"
  #include "compiler/preprocessor/Token.h"
  #include "compiler/preprocessor/Tokenizer.h"
  
  namespace pp
  {
  
  struct PreprocessorImpl
  {
      Diagnostics *diagnostics;
      MacroSet macroSet;
      Tokenizer tokenizer;
      DirectiveParser directiveParser;
      MacroExpander macroExpander;
  
      PreprocessorImpl(Diagnostics *diag,
                       DirectiveHandler *directiveHandler,
                       const PreprocessorSettings &settings)
          : diagnostics(diag),
            tokenizer(diag),
            directiveParser(&tokenizer,
                            &macroSet,
                            diag,
                            directiveHandler,
                            settings.maxMacroExpansionDepth),
            macroExpander(&directiveParser, &macroSet, diag, settings.maxMacroExpansionDepth)
      {
      }
  };
  
  Preprocessor::Preprocessor(Diagnostics *diagnostics,
                             DirectiveHandler *directiveHandler,
                             const PreprocessorSettings &settings)
  {
      mImpl = new PreprocessorImpl(diagnostics, directiveHandler, settings);
  }
  
  Preprocessor::~Preprocessor()
  {
      delete mImpl;
  }
  
  bool Preprocessor::init(size_t count, const char *const string[], const int length[])
  {
      static const int kDefaultGLSLVersion = 100;
  
      // Add standard pre-defined macros.
      predefineMacro("__LINE__", 0);
      predefineMacro("__FILE__", 0);
      predefineMacro("__VERSION__", kDefaultGLSLVersion);
      predefineMacro("GL_ES", 1);
  
      return mImpl->tokenizer.init(count, string, length);
  }
  
  void Preprocessor::predefineMacro(const char *name, int value)
  {
      PredefineMacro(&mImpl->macroSet, name, value);
  }
  
  void Preprocessor::lex(Token *token)
  {
      bool validToken = false;
      while (!validToken)
      {
          mImpl->macroExpander.lex(token);
          switch (token->type)
          {
              // We should not be returning internal preprocessing tokens.
              // Convert preprocessing tokens to compiler tokens or report
              // diagnostics.
              case Token::PP_HASH:
                  UNREACHABLE();
                  break;
              case Token::PP_NUMBER:
                  mImpl->diagnostics->report(Diagnostics::PP_INVALID_NUMBER, token->location,
                                             token->text);
                  break;
              case Token::PP_OTHER:
                  mImpl->diagnostics->report(Diagnostics::PP_INVALID_CHARACTER, token->location,
                                             token->text);
                  break;
              default:
                  validToken = true;
                  break;
          }
      }
  }
  
  void Preprocessor::setMaxTokenSize(size_t maxTokenSize)
  {
      mImpl->tokenizer.setMaxTokenSize(maxTokenSize);
  }
  
  }  // namespace pp