initialization - Swift: Why class method has return type AnyObject? -

initialization - Swift: Why class method has return type AnyObject? -

nsdate.distantfuture() documented homecoming object of type nsdate.

so then, why have homecoming type of anyobject, instead of nsdate?

in objective-c distantfuture returns id, not nsdate. automatic swift conversion makes anyobject. when class reviewed apple switch nsdate.

nsdate's distantfuture distant past (at to the lowest degree mac os x 10.0, before that). @ time many mill methods returned id because there no instancetype. create easier phone call subclasses method on returned object.

swift initialization nsdate return-type class-method