auto complete when overriding objc methods

If i extend a class (e.g. UIVewController or one of my own Obj C classes) in swift and then try and override a method then I don't get any auto complete suggestions and can't force them with ctrl-space.

e.g. if I have:

class FSCMockk: UIViewController {
    override func vie
}

I'd expect it to being up items like viewDidAppear. Should I be seeing these or is it not implemented. It's a pain not having it, especially with complete methods that take blocks