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> On Sep 16, 2017, at 6:32 AM, Joanna Carter via swift-evolution > <[email protected]> wrote: > > Greetings > > Old chestnut, sort of partially solved but still problems. > > Now we can nest types in generic types, what I want is : > > class Event<typeT> > { > class Args > { > public static let empty = Args() // error : Static stored properties not > supported in generic types > } > } > > But the static let is not directly in the generic class. It's still generic, though, because of the outer generic class, so there is a different static var for each specialization. For example, the following assert would fail: assert(Event<Int>.Args.empty === Event<String>.Args.empty) > > So, I end up doing another convoluted workaround in the shape of : > > class Event<typeT> > { > class Args > { > public static var empty: Args > { > return Args() > } > } > } > > The main difference is that I have to create a new instance on every call to > Args.empty instead of returning the same one. > > Is this an oversight or as intended, with the hope of fixing it in a future > version I'd say we consider it a bug. - Doug > > Joanna > > -- > Joanna Carter > Carter Consulting > > _______________________________________________ > 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
