when<TResult extends Object?> method
- @optionalTypeArgs
- TResult $default(
- @GroupRequestJoinStatusConverter() GroupRequestJoinStatus status,
- @ConvoViewConverter() ConvoView? convo,
- 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(@GroupRequestJoinStatusConverter() GroupRequestJoinStatus status, @ConvoViewConverter() ConvoView? convo, Map<String, dynamic>? $unknown) $default,) {final _that = this;
switch (_that) {
case _GroupRequestJoinOutput():
return $default(_that.status,_that.convo,_that.$unknown);case _:
throw StateError('Unexpected subclass');
}
}