[swift-evolution] Pitch: Automatically deriving Equatable/Hashable for more value types

Andrew Bennett cacoyi at gmail.com
Mon May 15 17:18:33 CDT 2017


Nice work Tony! Is this proposal up for PR on swift-evolution as well?

On Tue, 16 May 2017 at 7:30 am, Tony Allevato <tony.allevato at gmail.com>
wrote:

> Just to update everyone on the thread—it took a little longer than I'd
> hoped to get the kinks out, but I finally have the implementation up as a
> PR: https://github.com/apple/swift/pull/9619
>
> Hopefully there's still enough time to get the proposal reviewed, make any
> changes needed, and get this into Swift 4!
>
>
> On Tue, May 9, 2017 at 10:27 PM Brent Royal-Gordon <brent at architechies.com>
> wrote:
>
>> On May 9, 2017, at 3:53 PM, Tony Allevato via swift-evolution <
>> swift-evolution at swift.org> wrote:
>>
>> Likewise, proposing a new public addition to the standard library would
>> inspire far more design discussion than I believe we have time for if we
>> want this to make Swift 4. :)
>>
>>
>> Agreed. What I would do here is add an `_combineHashes` function (or
>> `Hashable` extension method, or whatever is most convenient) to the
>> standard library in Swift 4, have your compiler magic feature use it, and
>> defer the name-and-interface discussion until Swift 5.
>>
>> --
>> Brent Royal-Gordon
>> Architechies
>>
>>
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