[swift-evolution] [Proposal] Allow using optional binding to upgrade self from a weak to strong reference

[Kurt Werle]

On Fri, Feb 19, 2016 at 9:04 PM, Evan Maloney <emaloney at gilt.com> wrote:

...

> With this feature, the code above could be rewritten as:
>
> networkRequest.fetchData() { [weak self] result in
>     guard let self = self else { return }
>
> If you're going to have boilerplate like that, then the following seems
like it accomplishes the same thing [in this specific case] without
changing anything:

networkRequest.fetchData() { [unowned self] result in
>     guard self != nil else { return }
>
>
Kurt
-- 
kurt at CircleW.org
http://www.CircleW.org/kurt/
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