[swift-evolution] [Review] SE-0069: Mutability and Foundation Value Types
anthony.parker at apple.com
Wed May 4 14:14:39 CDT 2016
> On May 4, 2016, at 4:59 AM, Rod Brown <rodney.brown6 at icloud.com> wrote:
> With regard to this proposal, is there any reason that this proposal did not include an OrderedSet value type? I suspect perhaps this is an oversight?
> - Rod
We considered it, but did not include it in this proposal for scoping reasons. It’s not quite as straightforward to bridge as the other types because it really should allow containment of “Any”, but NSOrderedSet would instead require “AnyObject.” This is fixable but involves a large amount of engineering work.
>> On 4 May 2016, at 1:50 PM, Rod Brown via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> I believe this would fall in line with by Proposal SE-0069: Mutability and Foundation Value Types:
>> https://github.com/apple/swift-evolution/blob/master/proposals/0069-swift-mutability-for-foundation.md <https://github.com/apple/swift-evolution/blob/master/proposals/0069-swift-mutability-for-foundation.md>
>> I notice there is no OrderedSet in this proposal. I find it odd that it doesn’t yet include it.
>> - Rod
>>> On 4 May 2016, at 1:24 PM, Nicholas Maccharoli via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>>> Hello Swift Community,
>>> Recently I have noticed that there is a Set type but no OrderedSet type yet.
>>> If I want a set that preserves the original order I have to go with NSOrderedSet
>>> but I think it would be nice to have a native implementation in the standard library.
>>> What are your thoughts on this?
>>> - Nick
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