[swift-evolution] Add a while clause to for loops

Xiaodi Wu xiaodi.wu at gmail.com
Wed Jun 8 14:33:01 CDT 2016

On Wed, Jun 8, 2016 at 2:31 PM, Erica Sadun <erica at ericasadun.com> wrote:

> > On Jun 8, 2016, at 1:07 PM, Xiaodi Wu via swift-evolution <
> swift-evolution at swift.org> wrote:
> > I should add, on the topic of removing `where`, there would be a higher
> threshold for a successful proposal and I would have to convince people
> that the `where` clause is actually harmful. I do wonder if I could succeed
> in that endeavor. But when it comes to adding something like `while`,
> you've yet to convince me it offers more than just stylistic choice. IMO,
> that is insufficient for a proposal as consequential as adding syntax to
> the language itself (a much more serious addition than changing API in the
> stdlib, for example).
> I think it would be valuable to defer this discussion until after WWDC to
> see how SE-0099 does. The core team's response to while exfoliation will
> greatly affect both how this suggestion goes.

Probably wise.

> (As is, if this moves forward, I'd say go with either where or while but
> not both, or eliminate while entirely.)
> --- E
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