until<T> function

Iterable<T> until<T>(T stop, [ T? step ])

Implementation

Iterable<T> until<T>(T stop, [T? step]) {
  if (T == int) {
    return IntRange.until(stop as int, (step as num?)?.toInt() ?? 1)
        as Iterable<T>;
  } else if (T == double) {
    return DoubleRange.until(stop as double, (step as num?)?.toDouble() ?? 1.0)
        as Iterable<T>;
  } else if (T == Duration) {
    return DurationRange.until(
            stop as Duration, step as Duration? ?? Duration(seconds: 1))
        as Iterable<T>;
  } else if (stop.runtimeType == int) {
    return IntRange.until(stop as int, (step as num?)?.toInt() ?? 1)
        as Iterable<T>;
  } else if (stop.runtimeType == double) {
    return DoubleRange.until(stop as double, (step as num?)?.toDouble() ?? 1.0)
        as Iterable<T>;
  }
  // TODO TimeRange

  throw Exception('Unknown type $T');
}