[swift-evolution] [swift-evolution-announce] [Review] SE-0047 Defaulting non-Void functions so they warn on unused results

[Patrick Gili]

> 
> 	• What is your evaluation of the proposal?

+1

> 	• 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?

I really don't like language compilers/interpreters that do not warn when a return value hasn't been consumed. It is one of the few aspects of Ruby that I dislike, and it causes no end of frustration. However, this enforces a policy while allowing a opt-out behavior, which is a plus. Either way, the developer was forced to consider the return value.

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

Quick read.