when<TResult extends Object?> method

@optionalTypeArgs TResult when<TResult extends Object?>(TResult $default(bool status, String? message, @JsonKey.new(name: 'slots_count') int slotsCount, List<IsibookReservation> reservations, List<IsibookActivity> activities,))

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs
TResult when<TResult extends Object?>(
  TResult Function(
          bool status,
          String? message,
          @JsonKey(name: 'slots_count') int slotsCount,
          List<IsibookReservation> reservations,
          List<IsibookActivity> activities)
      $default,
) {
  final _that = this;
  switch (_that) {
    case _IsibookReservationsResponse():
      return $default(_that.status, _that.message, _that.slotsCount,
          _that.reservations, _that.activities);
  }
}