when<TResult extends Object?> method
TResult
when<TResult extends Object?>()
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 title, String id, Products products, List<Metafield> metafields, String? cursor, String? description, String? descriptionHtml, String? handle, String? updatedAt, ShopifyImage? image) $default,) {final _that = this;
switch (_that) {
case _Collection():
return $default(_that.title,_that.id,_that.products,_that.metafields,_that.cursor,_that.description,_that.descriptionHtml,_that.handle,_that.updatedAt,_that.image);case _:
throw StateError('Unexpected subclass');
}
}