Swift Closures - Capturing self as weak

Question

I am trying to resolve a closure based strong reference cycle in Swift.
In the code below, object is retained by the owning view controller. ProgressHUD is

Answer 1

Try the following:

object.setCompletionHandler { [unowned self] (error) -> () in
    if(!error){
        weakSelf?.tableView.reloadData()
    }
    weakSelf?.progressHUD?.hide(false)
}