javacc-7.0.3.src.main.resources.templates.cpp.TokenManagerBoilerPlateMethods.template Maven / Gradle / Ivy

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JavaCC is a parser/scanner generator for java.

There is a newer version: 7.0.13

  /** Reinitialise parser. */
  void ${tokMgrClassName}::ReInit(JAVACC_CHARSTREAM *stream, int lexState) {
    clear();
    jjmatchedPos = jjnewStateCnt = 0;
    curLexState = lexState;
    input_stream = stream;
    ReInitRounds();
    debugStream = stdout; // init
    SwitchTo(lexState);
    errorHandler = new TokenManagerErrorHandler();
  }

  void ${tokMgrClassName}::ReInitRounds() {
    int i;
    jjround = 0x80000001;
    for (i = ${stateSetSize}; i-- > 0;)
      jjrounds[i] = 0x80000000;
  }

  /** Switch to specified lex state. */
  void ${tokMgrClassName}::SwitchTo(int lexState) {
    if (lexState >= ${lexStateNameLength} || lexState < 0) {
      JJString message;
\#ifdef WIDE_CHAR
      message += L"Error: Ignoring invalid lexical state : ";
      message += lexState; message += L". State unchanged.";
\#else
      message += "Error: Ignoring invalid lexical state : ";
      message += lexState; message += ". State unchanged.";
\#endif
      throw new TokenMgrError(message, INVALID_LEXICAL_STATE);
    } else
      curLexState = lexState;
  }

  /** Constructor. */
  ${tokMgrClassName}::${tokMgrClassName} (JAVACC_CHARSTREAM *stream, int lexState)
#if TOKEN_MANAGER_SUPER_CLASS
  : ${TOKEN_MANAGER_SUPER_CLASS}()
#fi
  {
    input_stream = nullptr;
    ReInit(stream, lexState);
  }

  // Destructor
  ${tokMgrClassName}::~${tokMgrClassName} () {
    clear();
  }

  // clear
  void ${tokMgrClassName}::clear() {
    //Since input_stream was generated outside of TokenManager
    //TokenManager should not take care of deleting it
    //if (input_stream) delete input_stream;
    if (errorHandler) delete errorHandler, errorHandler = nullptr;    
  }