when<TResult extends Object?> method
- @optionalTypeArgs
- TResult $default(
- String $type,
- String cid,
- String mimeType,
- int size,
- DateTime createdAt,
- UBlobViewDetails? details,
- Moderation? moderation,
- 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 cid, String mimeType, int size, DateTime createdAt, @UBlobViewDetailsConverter() UBlobViewDetails? details, @ModerationConverter() Moderation? moderation, Map<String, dynamic>? $unknown) $default,) {final _that = this;
switch (_that) {
case _BlobView():
return $default(_that.$type,_that.cid,_that.mimeType,_that.size,_that.createdAt,_that.details,_that.moderation,_that.$unknown);case _:
throw StateError('Unexpected subclass');
}
}