when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<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. int requestMembersCount,
    10. String rev,
    11. String subjectDid,
    12. bool subjectFollowsOwner,
    13. Map<String, dynamic>? $unknown,
    )
)

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( String $type,  String actorDid,  DateTime convoCreatedAt,  String convoId,  DateTime createdAt,  int groupMemberCount,  String groupName,  String ownerDid,  int requestMembersCount,  String rev,  String subjectDid,  bool subjectFollowsOwner,  Map<String, dynamic>? $unknown)  $default,) {final _that = this;
switch (_that) {
case _EventGroupChatMemberAdded():
return $default(_that.$type,_that.actorDid,_that.convoCreatedAt,_that.convoId,_that.createdAt,_that.groupMemberCount,_that.groupName,_that.ownerDid,_that.requestMembersCount,_that.rev,_that.subjectDid,_that.subjectFollowsOwner,_that.$unknown);case _:
  throw StateError('Unexpected subclass');

}
}