Lines Matching refs:nullable
237 public boolean nullable() {return _nullable;}
605 /** Check to see if the production (now) appears to be nullable.
606 * A production is nullable if its RHS could derive the empty string.
608 * which themselves are nullable.
617 if (nullable_known()) return nullable();
619 /* if we have a zero size RHS we are directly nullable */
636 /* if its a terminal we are definitely not nullable */
639 /* its a non-term, is it marked nullable */
640 else if (!((non_terminal)sym).nullable())
641 /* this one not (yet) nullable, so we aren't */
646 /* if we make it here all parts are nullable */
683 /* if its not nullable, we are done */
684 if (!((non_terminal)sym).nullable())
750 if (nullable())
751 result += "[NULLABLE]";
753 result += "[NOT NULLABLE]";
