> Am 10.05.2016 um 20:51 schrieb Chris Lattner via swift-evolution
> <[email protected]>:
>
> Hello Swift community,
>
> The review of "SE-0081: Move where clause to end of declaration" begins now
> and runs through May 16. The proposal is available here:
>
>
> https://github.com/apple/swift-evolution/blob/master/proposals/0081-move-where-expression.md
>
>
> * What is your evaluation of the proposal?
+1
It increases readability of generics by a far margin.
I appreciate that the proposal allows to pull out the inheritance/conformance
constraints into the where clause, too, very much!
> * Is the problem being addressed significant enough to warrant a change
> to Swift?
Yes, as more complex generics are a powerful feature of Swift and the increased
readability helps designing and using them very much.
> * Does this proposal fit well with the feel and direction of Swift?
Absolutely.
> * If you have used other languages or libraries with a similar feature,
> how do you feel that this proposal compares to those?
Ceylon uses a similar syntax to declare the constraints of generic parameters:
shared interface DirectedGraph<V,E> satisfies IncidenceGraph<V,E>
given V satisfies Object
given E satisfies DirectedEdge<V, E> { … }
I always found this very readable but with Swift’s ability to declare
constraints between associated types of generic parameters this is even more
important.
> * How much effort did you put into your review? A glance, a quick
> reading, or an in-depth study?
Read the proposal carefully and followed the discussion.
-Thorsten
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