How to use

previousTokenOnChannel

method

in

org.antlr.v4.runtime.CommonTokenStream

@Override
protected Token LB(int k) {
  if ( k==0 || (p-k)<0 ) return null;
  int i = p;
  int n = 1;
  // find k good tokens looking backwards
  while ( n<=k && i>0 ) {
    // skip off-channel tokens
    i = previousTokenOnChannel(i - 1, channel);
    n++;
  }
  if ( i<0 ) return null;
  return tokens.get(i);
}

@Override
protected Token LB(int k) {
  if ( k==0 || (p-k)<0 ) return null;
  int i = p;
  int n = 1;
  // find k good tokens looking backwards
  while ( n<=k ) {
    // skip off-channel tokens
    i = previousTokenOnChannel(i - 1, channel);
    n++;
  }
  if ( i<0 ) return null;
  return tokens.get(i);
}

@Override
protected Token LB(int k) {
  if ( k==0 || (p-k)<0 ) return null;
  int i = p;
  int n = 1;
  // find k good tokens looking backwards
  while ( n<=k ) {
    // skip off-channel tokens
    i = previousTokenOnChannel(i - 1, channel);
    n++;
  }
  if ( i<0 ) return null;
  return tokens.get(i);
}

@Override
protected Token LB(int k) {
  if ( k==0 || (p-k)<0 ) return null;
  int i = p;
  int n = 1;
  // find k good tokens looking backwards
  while ( n<=k && i>0 ) {
    // skip off-channel tokens
    i = previousTokenOnChannel(i - 1, channel);
    n++;
  }
  if ( i<0 ) return null;
  return tokens.get(i);
}

@Override
protected Token LB(int k) {
  if ( k==0 || (p-k)<0 ) return null;
  int i = p;
  int n = 1;
  // find k good tokens looking backwards
  while ( n<=k && i>0 ) {
    // skip off-channel tokens
    i = previousTokenOnChannel(i - 1, channel);
    n++;
  }
  if ( i<0 ) return null;
  return tokens.get(i);
}