> On Nov 28, 2016, at 7:22 PM, Dave Abrahams via swift-evolution > <[email protected]> wrote: > > > on Thu Nov 24 2016, Michael Ilseman <[email protected]> wrote: > >>> On Nov 17, 2016, at 2:54 AM, Tino Heth via swift-evolution >> <[email protected]> wrote: >>> >>> An equivalent of "NS_REQUIRES_SUPER" (hopefully with a better name ;-) has >>> been requested several >> times, but never got the momentum it deserves. >>> Considering the current confusion (especially in UIKit), it would be >>> really nice to have some help from the compiler, and I wonder how >>> composition and protocols would be helpful here at all. >>> >> >> As an intermediary measure, this seems like an interesting QoI >> improvement for the compiler: warn when super.foo() is not called in >> the overridden method. > > Please no. Methods that need to be called when they are overridden are > almost always a result of poor design. > > “I don't always do Object Oriented Programming, but when I do, I use > the Template Method Pattern" > > understating-the-case-ly yrs,
I agree, that’s why I’m suggesting it be a ObjC-side attribute for use by e.g. UIKit. Regardless of how both of us may feel about UIKit’s design, it is the largest platform on which apps are made and there’s a chance for the compiler to enhance the developer experience. I do agree that we should be careful about condoning the practice for new/Swift-only frameworks. > > -- > -Dave > > _______________________________________________ > swift-evolution mailing list > [email protected] > https://lists.swift.org/mailman/listinfo/swift-evolution _______________________________________________ swift-evolution mailing list [email protected] https://lists.swift.org/mailman/listinfo/swift-evolution
