Proposal is being worked on. https://github.com/apple/swift-evolution/pull/552
- Karl
>
> On Nov 21, 2016 at 1:33 pm, <Jakub Bednář via swift-evolution
> (mailto:[email protected])> wrote:
>
>
>
> Hi fellow Swifters,
>
> I have just started using the language and was trying to declare an enum
> inside a protocol.
>
> protocol WorkingEngine {
> enum States {
> Idle
> Pending
> Working
> Finished
> Canceled
> }
>
> var state: States { get }
> }
>
> The compiler refused this and I had to take the enum outside of the protocol:
>
>
> enum WorkingEngineStates {
> Idle
> Pending
> Working
> Finished
> Canceled
> }
>
> protocol WorkingEngine {
> var state: WorkingEngineStates { get }
> }
>
> This does not seem coherent with the rest of the language, as enums can be
> nested in classes, structs and even enums, but not to protocols.
> I haven’t found any proposal for this change. Is this the correct place to
> request it or get some opinion on the idea?
>
> Thanks a lot,
>
> Jakub
>
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