when<TResult extends Object?> method
- @optionalTypeArgs
- TResult $default(
- String $type,
- StatusViewStatus status,
- Map<
String, dynamic> record, - UStatusViewEmbed? embed,
- DateTime? expiresAt,
- bool? isActive,
- 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, @StatusViewStatusConverter() StatusViewStatus status, Map<String, dynamic> record, @UStatusViewEmbedConverter() UStatusViewEmbed? embed, DateTime? expiresAt, bool? isActive, Map<String, dynamic>? $unknown) $default,) {final _that = this;
switch (_that) {
case _StatusView():
return $default(_that.$type,_that.status,_that.record,_that.embed,_that.expiresAt,_that.isActive,_that.$unknown);case _:
throw StateError('Unexpected subclass');
}
}