[swift-evolution] Enhanced Existentials

Rod Brown rodney.brown6 at icloud.com
Wed Jan 4 00:08:47 CST 2017

> On 3 Jan 2017, at 11:33 pm, David Hart via swift-evolution <swift-evolution at swift.org> wrote:
> Hello Mailing-list,
> I remember we discussed enhanced existentials heavily during the Swift 3 timeframe but postponed it. I was wondering if we need to bring back for discussion during Phase 1 or Phase 2? For reference, here is the proposal which Austin Zhend wrote which represented the culmination of the discussions:
> https://github.com/austinzheng/swift-evolution/blob/az-existentials/proposals/XXXX-enhanced-existentials.md#nested-typealias-existential
> Regards,
> David.
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> swift-evolution at swift.org
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I'm a big proponent of this - it's a limitation that is actually more capable in Obj-C than it is in Swift, and considering Swift's increased focus on Protocols, this seems rather baffling!

Would love to see this come forward into discussion.
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