char_token.java

《java virtual machine》是研究jvm的一本书

package java_cup.runtime;

/** This subclass of token represents symbols that need to maintain one
 *  char value as an attribute.  It maintains that value in the public
 *  field int_val.
 *
 * @see java_cup.runtime.str_token
 * @version last updated: 1/7/96
 * @author  Scott Hudson
 */

public class char_token extends token {

  /** Full constructor. */
  public char_token(int term_num, char v)
    {
      /* super class does most of the work */
      super(term_num);

      char_val = v;
    }

  /** Constructor with default value of 0 */
  public char_token(int term_num)
    {
      this(term_num, '\0');
    }

  /** The stored char value. */
  public char char_val;
};