[swift-evolution] [Accepted] SE-0048: Generic Type Aliases

James Richard ketzu at me.com
Sat Apr 16 11:46:18 CDT 2016

I believe he means it has been merged to master, and will be in the next snapshot.

Sent from my iPad

On Apr 16, 2016, at 1:12 AM, Nicola Salmoria via swift-evolution <swift-evolution at swift.org> wrote:

>> Proposal link: https://github.com/apple/swift-evolution/blob/master/proposals/0048-generic-typealias.md
>> The review of SE-0048 “Generic Type aliases” ran from March 24…29, 2016. The proposal received overwhelmingly positive feedback and has now been implemented for Swift 3.
>> - Doug
> Is this actually implemented fully?
> The constraints on the typealias type don’t seem to work in the latest development snapshot (2016-04-12a):
> typealias StringDict<T> = Dictionary<T, String> // error: type 'T' does not conform to protocol 'Hashable'
> typealias StringDict<T: Hashable> = Dictionary<T, String>   // error: type parameters may not be constrained in typealias argument list
>> Nicola
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