kc3-lang/angle/src/compiler/preprocessor/new/Token.cpp

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  Commit

• Author : alokp@chromium.org
  Date : 2011-09-13 04:10:41
  Hash : 16efbbae
  Message : Complete implementation for handling #define directive. Review URL: http://codereview.appspot.com/4963062 git-svn-id: https://angleproject.googlecode.com/svn/trunk@752 736b8ea6-26fd-11df-bfd4-992fa37f6226

• src/compiler/preprocessor/new/Token.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 "Token.h"
  
  #include "token_type.h"
  
  static const int kLocationLineSize = 16;  // in bits.
  static const int kLocationLineMask = (1 << kLocationLineSize) - 1;
  
  namespace pp
  {
  
  Token::Location Token::encodeLocation(int line, int file)
  {
      return (file << kLocationLineSize) | (line & kLocationLineMask);
  }
  
  void Token::decodeLocation(Location loc, int* line, int* file)
  {
      if (file) *file = loc >> kLocationLineSize;
      if (line) *line = loc & kLocationLineMask;
  }
  
  Token::Token(Location location, int type, std::string* value)
      : mLocation(location),
        mType(type),
        mValue(value)
  {
  }
  
  Token::~Token() {
      delete mValue;
  }
  
  std::ostream& operator<<(std::ostream& out, const Token& token)
  {
      switch (token.type())
      {
        case INT_CONSTANT:
        case FLOAT_CONSTANT:
        case IDENTIFIER:
          out << *(token.value());
          break;
        default:
          out << static_cast<char>(token.type());
          break;
      }
      return out;
  }
  }  // namespace pp