final public void file_declaration() throws ParseException {
    jj_consume_token(FILE);
    identifier_list();
    jj_consume_token(151);
    subtype_indication();
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case IS:
    case OPEN:
      file_open_information();
      break;
    default:
      jj_la1[153] = jj_gen;
      ;
    }
    jj_consume_token(SEMICOLON);
  }