How to use

label

method

in

org.antlr.v4.runtime.atn.Transition

IntervalSet labels = transition.label();

  public void addTransition(int index, Transition e) {
    if (transitions.isEmpty()) {
      epsilonOnlyTransitions = e.isEpsilon();
    }
    else if (epsilonOnlyTransitions != e.isEpsilon()) {
      System.err.format(Locale.getDefault(), "ATN state %d has both epsilon and non-epsilon transitions.\n", stateNumber);
      epsilonOnlyTransitions = false;
    }

    boolean alreadyPresent = false;
    for (Transition t : transitions) {
      if ( t.target.stateNumber == e.target.stateNumber ) {
        if ( t.label()!=null && e.label()!=null && t.label().equals(e.label()) ) {
//                    System.err.println("Repeated transition upon "+e.label()+" from "+stateNumber+"->"+t.target.stateNumber);
          alreadyPresent = true;
          break;
        }
        else if ( t.isEpsilon() && e.isEpsilon() ) {
//                    System.err.println("Repeated epsilon transition from "+stateNumber+"->"+t.target.stateNumber);
          alreadyPresent = true;
          break;
        }
      }
    }
    if ( !alreadyPresent ) {
      transitions.add(index, e);
    }
  }

IntervalSet set = t.label();
if (set != null) {
  if (t instanceof NotSetTransition) {

  public void addTransition(int index, Transition e) {
    if (transitions.isEmpty()) {
      epsilonOnlyTransitions = e.isEpsilon();
    }
    else if (epsilonOnlyTransitions != e.isEpsilon()) {
      System.err.format(Locale.getDefault(), "ATN state %d has both epsilon and non-epsilon transitions.\n", stateNumber);
      epsilonOnlyTransitions = false;
    }

    boolean alreadyPresent = false;
    for (Transition t : transitions) {
      if ( t.target.stateNumber == e.target.stateNumber ) {
        if ( t.label()!=null && e.label()!=null && t.label().equals(e.label()) ) {
//                    System.err.println("Repeated transition upon "+e.label()+" from "+stateNumber+"->"+t.target.stateNumber);
          alreadyPresent = true;
          break;
        }
        else if ( t.isEpsilon() && e.isEpsilon() ) {
//                    System.err.println("Repeated epsilon transition from "+stateNumber+"->"+t.target.stateNumber);
          alreadyPresent = true;
          break;
        }
      }
    }
    if ( !alreadyPresent ) {
      transitions.add(index, e);
    }
  }

IntervalSet labels = transition.label();

IntervalSet labels = transition.label();

IntervalSet labels = transition.label();

IntervalSet set = t.label();
if (set != null) {
  if (t instanceof NotSetTransition) {

IntervalSet set = t.label();
if (set != null) {
  if (t instanceof NotSetTransition) {

IntervalSet set = t.label();
if (set != null) {
  if (t instanceof NotSetTransition) {

  throw new UnsupportedOperationException("Not yet implemented.");
IntervalSet set =  matchTransition.label();
List<Interval> intervals = set.getIntervals();
int n = intervals.size();

  throw new UnsupportedOperationException("Not yet implemented.");
} else {
  matchSet.addAll(matchTransition.label());

  throw new UnsupportedOperationException("Not yet implemented.");
IntervalSet set =  matchTransition.label();
List<Interval> intervals = set.getIntervals();
int n = intervals.size();

  throw new UnsupportedOperationException("Not yet implemented.");
} else {
  matchSet.addAll(matchTransition.label());

  throw new UnsupportedOperationException("Not yet implemented.");
IntervalSet set =  matchTransition.label();
List<Interval> intervals = set.getIntervals();
int n = intervals.size();

IntervalSet set = t.label();
if (set != null) {
  if (t instanceof NotSetTransition) {

intermediateState.addTransition(new SetTransition(target, effective.label()));
break;

  throw new UnsupportedOperationException("Not yet implemented.");
} else {
  matchSet.addAll(matchTransition.label());