I'm trying to do something like this: 

```
public extension UIImage {
    public convenience init(whatever: Int) {
        UIGraphicsBeginImageContextWithOptions(...)

        //...

        let image = UIGraphicsGetImageFromCurrentContext()
        UIGraphicsEndImageContext()

        return image // <- impossible
    }
}

```

But this is not possible as "nil" is the only valid return for an initializer... How do i do this?

For example, the Objtive-C method [UIImage imageNamed:] is a class method (that can return whatever it wants in Objective-C) and it was mapped to the swift initializer UIImage(named:).