On Nov 24, 2017, at 3:47 PM, Douglas Gregor via swift-evolution
<[email protected]> wrote:
> One could imagine adding a “curry” operation to function types:
Right, having non-nominal types participate in the generics system would be
undoubtably awesome! :)
> Or perhaps making metatypes Hashable so they can be used as keys into a
> Dictionary:
>
> extension<T> T.Type: Hashable {
Ok, so you just happened to pick a simple one: what is the benefit of plumbing
knowledge of metatypes through the entire generics system, rather than define a
“Swift.Metatype” type, and defining stuff against it?
-Chris
> var hashValue: Int {
> return ObjectIdentifier(self).hashValue
> }
>
> static func ==(lhs: T.Type, rhs: T.Type) -> Bool { /* standard library
> magic */ }
> }
>
> - Doug
>
>
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