Ouch! This is a side effect of ObjC lightweight generics being imported as Swift generics in Swift 3.0.
Since there is no common superclass that satisfies NSCopying & NSSecureCoding and the fact that NSSecureCoding has static requirements means you can’t do it (at least without hacks such as extending NSObject to conform to both protocols or creating a wrapper class and creating a non-generic subclass of CNLabeledValue and using it instead). For now, you have to use var toExcludeOrCopy : AnyObject? This is worthy of a bug report and points to a serious issue: The “limitations” that result from importing ObjC lightweight generics as Swift generics. One possible solution can be implementation of “Enhanced Existentials <https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170102/029919.html>”. > On Jan 9, 2017, at 11:23 AM, German Laullon via swift-users > <swift-users@swift.org> wrote: > > Hi All > > I just upgrade to Swift 3. After open and convert my codes I found lots of > errors. One of them is about CNLabeledValue. > > With Swift 2.3, it works well with: > > var toExcludeOrCopy : CNLabeledValue? > > With Swift 3, it gives me the error message: > Reference to generic type 'CNLabeledValue' requires arguments in <...>. > > After I fixed it with XCode, it changed to: > var toExcludeOrCopy : CNLabeledValue<AnyObject>? > > However, Xcode gives me error message with this fix: > Type 'AnyObject' does not conform to protocol 'NSCopying'. > > I know the error is because of the generic type but I don't know how to > declare with CNLabeledValue. My purpose is to store any the CNLabeledValue > including phone number, email, address etc to one var. > Any help will be appreciate. > > Germán Laullón > > _______________________________________________ > swift-users mailing list > swift-users@swift.org > https://lists.swift.org/mailman/listinfo/swift-users
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