transf<R extends Object> method

@override Result<Option<R>> transf<R extends Object>([ @noFutures R noFutures(T e)? ])

Transforms the Outcome's generic type from T to R.

Uses the transformer function noFutures if provided, otherwise attempts a direct cast.

Implementation

@override
Result<Option<R>> transf<R extends Object>([
  @noFutures R Function(T e)? noFutures,
]) {
  try {
    final value0 = UNSAFE(() => unwrap());
    final value1 = noFutures?.call(value0) ?? value0 as R;
    return Ok(Option.from(value1));
  } catch (error, stackTrace) {
    assert(false, error);
    return Err('Cannot transform $T to $R', stackTrace: stackTrace);
  }
}