whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String $type,
    2. String actorDid,
    3. DateTime convoCreatedAt,
    4. String convoId,
    5. DateTime createdAt,
    6. int groupMemberCount,
    7. String groupName,
    8. String ownerDid,
    9. String rev,
    10. String subjectDid,
    11. Map<String, dynamic>? $unknown,
    )?
)

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 $type,  String actorDid,  DateTime convoCreatedAt,  String convoId,  DateTime createdAt,  int groupMemberCount,  String groupName,  String ownerDid,  String rev,  String subjectDid,  Map<String, dynamic>? $unknown)?  $default,) {final _that = this;
switch (_that) {
case _EventGroupChatJoinRequestRejected() when $default != null:
return $default(_that.$type,_that.actorDid,_that.convoCreatedAt,_that.convoId,_that.createdAt,_that.groupMemberCount,_that.groupName,_that.ownerDid,_that.rev,_that.subjectDid,_that.$unknown);case _:
  return null;

}
}