parse_reduce_row.java

package java_cup ;


/**
 * This class represents one row (corresponding to one machine state) of the
 * reduce-goto parse table.
 */
public class parse_reduce_row
{
  /*-----------------------------------------------------------*/
  /*--- Constructor(s) ----------------------------------------*/
  /*-----------------------------------------------------------*/
  /**
   * Simple constructor. Note: this should not be used until the number of
   * terminals in the grammar has been established.
   */
  public parse_reduce_row ( )
  {
    /* make sure the size is set */
    if ( _size <= 0 ) _size = non_terminal.number ( ) ;
    /* allocate the array */
    under_non_term = new lalr_state [ size ( ) ] ;
  }


  /*-----------------------------------------------------------*/
  /*--- (Access to) Static (Class) Variables ------------------*/
  /*-----------------------------------------------------------*/
  /** Number of columns (non terminals) in every row. */
  protected static int _size = 0 ;


  /** Number of columns (non terminals) in every row. */
  public static int size ( )
  {
    return _size ;
  }


  // Hm Added clear to clear all static fields
  public static void clear ( )
  {
    _size = 0 ;
  }


  /*-----------------------------------------------------------*/
  /*--- (Access to) Instance Variables ------------------------*/
  /*-----------------------------------------------------------*/
  /** Actual entries for the row. */
  public lalr_state under_non_term[] ;
}