> On Oct 14, 2016, at 12:59 PM, Chris Lattner via swift-evolution
> <email@example.com> wrote:
> Hello Swift community,
> The review of "SE-0144: Allow Single Dollar Sign as a Valid Identifier"
> begins now and runs through October 18. The proposal is available here:
> Reviews are an important part of the Swift evolution process. All reviews
> should be sent to the swift-evolution mailing list at
> or, if you would like to keep your feedback private, directly to the review
> What goes into a review?
> The goal of the review process is to improve the proposal under review
> through constructive criticism and contribute to the direction of Swift. When
> writing your review, here are some questions you might want to answer in your
> * 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?
-1 from me.
The library in question was exploiting a bug in the compiler. I went and
checked the officially published Swift 1.0 grammar and “$” is not a valid
I’m sympathetic to the argument that the behavior shipped in three major
versions but ultimately all this does is create an opportunity for cute tricks.
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