when<TResult extends Object?> method
- @optionalTypeArgs
- TResult $default(
- String $type,
- AtUri uri,
- String cid,
- Map<
String, dynamic> record, - ProfileViewBasic creator,
- ListViewBasic? list,
- List<
ListItemView> ? listItemsSample, - List<
GeneratorView> ? feeds, - int? joinedWeekCount,
- int? joinedAllTimeCount,
- List<
Label> ? labels, - DateTime indexedAt,
- 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, @AtUriConverter() AtUri uri, String cid, Map<String, dynamic> record, @ProfileViewBasicConverter() ProfileViewBasic creator, @ListViewBasicConverter() ListViewBasic? list, @ListItemViewConverter() List<ListItemView>? listItemsSample, @GeneratorViewConverter() List<GeneratorView>? feeds, int? joinedWeekCount, int? joinedAllTimeCount, @LabelConverter() List<Label>? labels, DateTime indexedAt, Map<String, dynamic>? $unknown) $default,) {final _that = this;
switch (_that) {
case _StarterPackView():
return $default(_that.$type,_that.uri,_that.cid,_that.record,_that.creator,_that.list,_that.listItemsSample,_that.feeds,_that.joinedWeekCount,_that.joinedAllTimeCount,_that.labels,_that.indexedAt,_that.$unknown);case _:
throw StateError('Unexpected subclass');
}
}