Logo Search packages:      
Sourcecode: yydebug version File versions  Download package

yyDebug.java

package jay.yydebug;
/** debugging interface for parsers generated by {@link jay}.
    For details consult the skeleton files.
      The interface expects that the scanner can be queried more then
      once for a value corresponding to a token.
  */
00007 public interface yyDebug {
  /** just pushed the state/value stack.
      @param state current state.
        @param value current value.
    */
  void push (int state, Object value);
  /** just called the scanner.
      @param state current state.
        @param token just obtained from scanner.
        @param name of token in grammar.
        @param value will be obtained from scanner.
      */
  void lex (int state, int token, String name, Object value);
  /** moving to a new state because of input or error.
      @param from current state.
        @param to next state.
        @param errorFlag value in next state.
      */
  void shift (int from, int to, int errorFlag);
  /** discarding a state during error recovery.
      @param state discarded.
      */
  void pop (int state);
  /** error recovery failed, about to throw <tt>yyException</tt>.
    */
  void reject ();
  /** discarding token during error recovery.
      @param state current state.
        @param token discarded.
        @param name of token in grammar.
        @param value will be obtained from scanner.
      */
  void discard (int state, int token, String name, Object value);
  /** rule completed, calling action.
      @param from current state.
        @param to state to be uncovered.
        @param rule number of completed right-hand side.
        @param text text of rule.
        @param len number of symbols in rule.
      */
  void reduce (int from, int to, int rule, String text, int len);
  /** moving to a new state following an action.
      @param from current state.
        @param to next state.
      */
  void shift (int from, int to);
  /** parse is successful.
      @param value to be returned by <tt>yyparse()</tt>.
      */
  void accept (Object value);
  /** syntax error.
    */
  void error (String message);
}

Generated by  Doxygen 1.6.0   Back to index