Comment by chuckadams

I'm no great fan of GoF, it leads off saying to use composition, then most of the patterns just go hog-wild with inheritance anyway. But I don't think anyone has a lock on the term "delegation". It means "pass off responsibility to something else", and it doesn't need to depend on any single mechanism hardwired into the language. Whether `self` stays intact across dispatches or you need to pass `this` explicitly to your delegated handler isn't the central point.