[swift-evolution] Proposal: typealias support protocol constraint

[Adrian Kashivskyy]

I believe this could be achieved using generic typealiases, proposed here: https://lists.swift.org/pipermail/swift-evolution/2015-December/000132.html

Pozdrawiam – Regards,
Adrian Kashivskyy

> Wiadomość napisana przez QQ Mail via swift-evolution <swift-evolution at swift.org> w dniu 06.12.2015, o godz. 08:17:
> 
> If typealias support protocol constraint, I think we can reuse a lot of code, also more readable
> 
> For Example: 
> 
> typealias PointCollection = protocol<T:CollectionType where T.Generator.Element == CGPoint>
> 
> public extension PointCollection {
>     
>     
>     
> }
> 
> 
> 
> 
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