[swift-evolution] [Review] SE-0073: Marking closures as executing exactly once

[Matthew Johnson]

> * What is your evaluation of the proposal?

+1.  I like semantic guarantees provided by the compiler.

> 	* Is the problem being addressed significant enough to warrant a change to Swift?

Yes.

> 	* Does this proposal fit well with the feel and direction of Swift?

Yes.

> 	* If you have used other languages or libraries with a similar feature, how do you feel that this proposal compares to those?

Not that I can think of.

> 	* How much effort did you put into your review? A glance, a quick reading, or an in-depth study?

I participated in the earlier threads, read the proposal thoroughly, and have followed the review closely.

> 
> More information about the Swift evolution process is available at
> 
> 	https://github.com/apple/swift-evolution/blob/master/process.md
> 
> Thank you,
> 
> -Chris Lattner
> Review Manager
> 
> 
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