> On Mar 24, 2016, at 3:39 PM, Brent Royal-Gordon <br...@architechies.com> > wrote: > >>> I think this is better modeled in Swift as something like: >>> >>> let john = (firstName:"John", lastName:"Doe") >>> let alice = with(john) { >>> $0.firstName = "Alice" >>> } >> >> You can kind of do this now: >> >> struct Person { >> var firstName, lastName: String >> } >> >> func modify<T>(item: T, update: (inout T) -> Void) -> T { >> var this = item >> update(&this) >> return this >> } >> >> let carol: Person = modify(john) { >> $0.firstName = "Carol" >> } >> >> print(carol) > > You *can* do this now. I'm suggesting it be added to Stdlib. >
Ah, then that's a "pass it by Dmitri" kind of thing, isn't it? -- E _______________________________________________ swift-evolution mailing list swift-evolution@swift.org https://lists.swift.org/mailman/listinfo/swift-evolution