Jonathan Sterling – Refinement Protocols: Another Approach to Typed CollectionsIn February, I wrote about using instancetype to get semi-typesafe collections in Objective-C. After an email conversation with Patrick Beard, I’d like to present another approach. One sad consequence of protocols only being commonly used to encode delegation is that beginners frequently conflate protocols with delegation. Hence the proliferation of tutorials on how to “do delegates” in Objective-
