[swift-evolution] [swift-evolution-announce] [Review] SE-0024 "Optional Value Setter `??=`"

David Sweeris davesweeris at mac.com
Tue Feb 16 07:24:21 CST 2016

-1, because in my mind, "x ??= y" kinda looks like "y is assigned to x iff y isn't nil", or, if you associate the ?? part with the lhs, "y is assigned to x if x is nil", neither of which is what the proposed operator means. In fact, the 2nd case is the *opposite* of what ??= means in this proposal.

To be clear, it's the syntax that I'm opposed to, not the concept.

- Dave Sweeris

> On Feb 12, 2016, at 23:15, Douglas Gregor <dgregor at apple.com> wrote:
> Hello Swift community,
> The review of SE-0024 "Optional Value Setter `??=`" begins now and runs through February 18, 2016. The proposal is available here:
> https://github.com/apple/swift-evolution/blob/master/proposals/0024-optional-value-setter.md
> 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/0024-optional-value-setter.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?
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> More information about the Swift evolution process is available at
> https://github.com/apple/swift-evolution/blob/master/process.md
> Thank you,
> Doug Gregor
> Review Manager
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