[swift-evolution] [swift-evolution-announce] [Accepted] SE-0062: Referencing Objective-C key-paths

Douglas Gregor dgregor at apple.com
Thu Apr 14 17:57:21 CDT 2016

> On Apr 14, 2016, at 3:48 PM, Douglas Gregor <dgregor at apple.com> wrote:
> Proposal link: https://github.com/apple/swift-evolution/blob/master/proposals/0062-objc-keypaths.md <https://github.com/apple/swift-evolution/blob/master/proposals/0062-objc-keypaths.md>
> Hello Swift Community,
> The review of SE-0062 "Referencing Objective-C key-paths” ran from April 7...12, 2016. The proposal is accepted, with one adjustment to the handling of collections: rather than support any SequenceType as a collection, the core team wants a narrower rule for only the primary Cocoa collection types (NSArray, NSDictionary, NSSet) and their Swift-bridged equivalents (Array, Dictionary, Set), due to implementation concerns.
> Feedback on this proposal was generally positive, and the proposal fits well with #selector (SE-0022 <https://github.com/apple/swift-evolution/blob/master/proposals/0022-objc-selectors.md>). There was some discussion during the review of extending the proposal to more strongly-typed key paths. However, the core team felt that this feature is important for Swift 3 to support the renaming of Objective-C APIs in Swift (SE-0005 <https://github.com/apple/swift-evolution/blob/master/proposals/0005-objective-c-name-translation.md>), and that such a significant increase in scope would jeopardize the feature for Swift 3.
> We welcome an implementation of this proposal. I’ve filed a ticket at
> 	We welcome an implementation of this proposal. I’ve filed a ticket at

Paste fail, it’s here:


> to track the implementation.
> 	- Doug
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