I tend to dislike the backslash as well, but can't suggest a good alternative.

Does any of this allow for operations within the key path? e.g. 
Department.employees.@sum.salary?

Also, in this example:

let firstFriendsNameKeyPath = \Person.friends[0].name
let firstFriend = luke[keyPath: firstFriendsNameKeyPath] // "Han Solo"

Can't we do without the keyPath: argument name? The compiler knows it's a 
keypath, it would be nicer to write

let firstFriend = luke[firstFriendsNameKeyPath] // "Han Solo"

> On Apr 5, 2017, at 16:56 , Douglas Gregor via swift-evolution 
> <swift-evolution@swift.org> wrote:
> 
> Hello Swift community,
> 
> The second review of SE-0161 "Smart KeyPaths: Better Key-Value Coding for 
> Swift" begins now and runs through April 9, 2017. The revised proposal is 
> available here:
> 
> https://github.com/apple/swift-evolution/blob/master/proposals/0161-key-paths.md
> The core team’s feedback from the first review of this proposal can be viewed 
> at:
> 
> https://lists.swift.org/pipermail/swift-evolution-announce/2017-April/000342.html
> Reviews are an important part of the Swift evolution process. All reviews 
> should be sent to the swift-evolution mailing list at
> 
> https://lists.swift.org/mailman/listinfo/swift-evolution
> or, if you would like to keep your feedback private, directly to the review 
> manager. When replying, please try to keep the proposal link at the top of 
> the message:
> 
> Proposal link:
> 
> https://github.com/apple/swift-evolution/blob/master/proposals/0161-key-paths.md
> Reply text
> Other replies
> What goes into a review?
> 
> The goal of the review process is to improve the proposal under review 
> through constructive criticism and, eventually, determine the direction of 
> Swift. When writing your review, here are some questions you might want to 
> answer in your review:
> 
>       • What is your evaluation of the proposal?
>       • Is the problem being addressed significant enough to warrant a change 
> to Swift?
>       • Does this proposal fit well with the feel and direction of Swift?
>       • If you have used other languages or libraries with a similar feature, 
> how do you feel that this proposal compares to those?
>       • How much effort did you put into your review? A glance, a quick 
> reading, or an in-depth study?
> More information about the Swift evolution process is available at
> 
> https://github.com/apple/swift-evolution/blob/master/process.md
> Thank you,
> 
> -Doug
> 
> Review Manager
> 
> _______________________________________________
> swift-evolution mailing list
> swift-evolution@swift.org
> https://lists.swift.org/mailman/listinfo/swift-evolution


-- 
Rick Mann
rm...@latencyzero.com


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