This is part of the existential types and a highly wanted feature. You can read more about here and here.
-- Adrian Zubarev Sent with Airmail Am 21. November 2016 um 22:01:33, Richard Henry via swift-evolution ([email protected]) schrieb: Hopefully this is the right mailing list... It seems like there’s currently no way to declare a type that is an object conforming to a protocol in Swift, and I think that would be a useful language feature to add. To be super clear about what I mean, if I have the following code: class MyClass { … } protocol MyProtocol { … } There is currently no way to do something like (in pseudo-code): var thing: MyClass & MyProtocol = … In Objective-C, you would do: MyClass <MyProtocol> *thing ... Is this up for consideration, or is there a reason why this isn’t possible? Thanks. Richard _______________________________________________ swift-evolution mailing list [email protected] https://lists.swift.org/mailman/listinfo/swift-evolution
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