whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String deliveryNumber,
    2. String phSSCCNumber,
    3. List<String> ssccList,
    4. Delivery? delivery,
    5. List<HuDetails?> ssccDetails,
    )?
)

A variant of when that fallback to returning null

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return null;
}

Implementation

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String deliveryNumber,  String phSSCCNumber,  List<String> ssccList,  Delivery? delivery,  List<HuDetails?> ssccDetails)?  $default,) {final _that = this;
switch (_that) {
case _DeliveryBundle() when $default != null:
return $default(_that.deliveryNumber,_that.phSSCCNumber,_that.ssccList,_that.delivery,_that.ssccDetails);case _:
  return null;

}
}