[swift-evolution] [swift-evolution-announce] [Review] SE-0066: Standardize function type argument syntax to require parentheses

Matthew Johnson matthew at anandabits.com
Tue Apr 26 15:49:13 CDT 2016

> What is your evaluation of the proposal?
A somewhat reluctant +1.  I like the sugar but Chris makes a good case about the ambiguities and the move away from functional tradition.  I am a bit sad about the need for parentheses but it seems like maybe it's for the best.  

I also must admit that increased consistency of adding the parentheses will probably make the language a bit easier to learn for those not coming from a functional background.

> Is the problem being addressed significant enough to warrant a change to Swift?
It cleans up function type syntax to match other recent changes.

> Does this proposal fit well with the feel and direction of Swift?
Yes, especially Swift 3 direction.

> If you have used other languages or libraries with a similar feature, how do you feel that this proposal compares to those?
I really like the very clean syntax of functional languages which is why I am a little bit disappointed to see us add what looks like clutter when seen from a functional perspective.

> How much effort did you put into your review? A glance, a quick reading, or an in-depth study?
Participated in the original thread, read the proposal and all replies, and gave some thought to the balance of aesthetics and clarity (especially removing ambiguity).

> 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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