when<TResult extends Object?> method
- @optionalTypeArgs
- TResult $default(
- String? cursor,
- List<
FeedViewPost> feed, - 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? cursor, @FeedViewPostConverter() List<FeedViewPost> feed, Map<String, dynamic>? $unknown) $default,) {final _that = this;
switch (_that) {
case _FeedGetFeedOutput():
return $default(_that.cursor,_that.feed,_that.$unknown);case _:
throw StateError('Unexpected subclass');
}
}