Hi Remy, Brent,

We’re thinking about it but there are no plans for Swift 3 in this respect 
(although I think we’re going to keep the NS prefix on these types).

One of the complexities with this type is its performance characteristics, 
especially when used with CoreData (the reason it was introduced). CoreData 
relies a lot on proxying for performance reasons, but there is currently an 
impedance mismatch between that behavior and Swift’s focus on static typing.

- Tony

> On Jun 17, 2016, at 10:43 AM, Brent Royal-Gordon via swift-evolution 
> <swift-evolution@swift.org> wrote:
> 
>> Unlike its companion collections like NSArray, NSDictionary, and NSSet, 
>> NSOrdered is still a class rather than a struct and has a subclass that is 
>> still NSMutableOrderedSet. This should probably receive the same treatment 
>> as the other classes
> 
> Swift Evolution proposal SE-0069 "Mutability and Foundation Value Types" 
> notes at the bottom 
> <https://github.com/apple/swift-evolution/blob/master/proposals/0069-swift-mutability-for-foundation.md>:
> 
>> The following classes were considered and rejected or deferred for the 
>> described reasons:
>> …
>>      • OrderedSet, CountedSet: We will consider these types in a future 
>> proposal.
> 
> 
> So sit tight—the Foundation team is already thinking about this. (That 
> doesn't mean you'll necessarily see it this year, though.)
> 
> -- 
> Brent Royal-Gordon
> Architechies
> 
> _______________________________________________
> swift-evolution mailing list
> swift-evolution@swift.org
> https://lists.swift.org/mailman/listinfo/swift-evolution

_______________________________________________
swift-evolution mailing list
swift-evolution@swift.org
https://lists.swift.org/mailman/listinfo/swift-evolution

Reply via email to