ifSync method

@override Sync<T> ifSync(@noFutures void noFutures(Sync<T> self, Sync<T> sync))

Performs a side-effect if this is Sync.

Implementation

@override
@pragma('vm:prefer-inline')
Sync<T> ifSync(
  @noFutures void Function(Sync<T> self, Sync<T> sync) noFutures,
) {
  // Side-effect path: an absorbed throw from the callback must surface as an
  // Err on the returned Sync. `on Err catch` preserves a user-thrown `Err`
  // verbatim — wrapping it would lose statusCode/breadcrumbs/stackTrace.
  try {
    noFutures(this, this);
    return this;
  } on Err catch (err) {
    return Sync.err(err.transfErr<T>());
  } catch (error, stackTrace) {
    return Sync.err(Err<T>(error, stackTrace: stackTrace));
  }
}