This looks like it doesn't work (swift 2.x), but wanted to be sure it's not supported:
class Superclass {} class Subclass1 : Superclass {} class Subclass2 : Superclass {} class Subclass3 : Superclass {} let sc1 = Subclass1() let sc2 = Subclass2() let sc3 = Subclass3() let objects : [Superclass] = [sc1, sc2, sc3] for subclassObject in objects { switch subclassObject { case let object = subclassObject as? Subclass1: doSomethingWith(object) case let object = subclassObject as? Subclass2: doSomethingWith(object) case let object = subclassObject as? Subclass3: doSomethingWith(object) default: return } } This gives an error, expecting a colon (:) after object on every case. I wanted to be sure I wasn't missing something in my syntax (nor some obvious-to-others reason this isn't supported) before going to swift evolution. -- Nate Birkholz
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