#selector is not used with a string, but with an actual reference to a
method. If, for instance, you have a protocol MyVC which declares `var
viewControllers: ...` then you can use something like
#selector(MyVC.viewControllers).

On Thu, Sep 22, 2016 at 9:51 PM, Gerriet M. Denkmann via swift-users <
swift-users@swift.org> wrote:

> This line (Swift 3):
>         if a.responds(to: Selector(“viewControllers") )
> creates this warning: Use '#selector' instead of explicitly constructing a
> 'Selector'
>
> Ok. Following this advice I change it to:
>         if a.responds(to: #selector(“viewControllers"))
> and now get an error instead: Argument of ‘#selector' does not refer to an
> '@objc' method, property, or initializer
>
> Why do I get punished for following Xcode’s advice?
>
> Gerriet.
>
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> swift-users@swift.org
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>
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