[swift-evolution] [Proposal] More lenient subscript methods over Collections

[Luis Henrique B. Sousa]

Perhaps another word that could fit in the first case
(truncate/bounded/within/clamping) is `flat`. Along the same lines of the
`flatMap` which returns only non-nil values, here we have an empty array
instead of nil when the range doesn't apply at all.

let array = [1,2,3]

array[flat: 0..<10] // [1,2,3]
array[checking: 0..<10] // nil

I'm still not sure if `clamping` is the right word. What do you think?

- Luis

On Thu, May 12, 2016 at 7:25 AM, Brent Royal-Gordon <brent at architechies.com>
wrote:

> > It sounds good, thanks for you suggestions @Vladimir, @Patrick and
> @Brent.
> >
> > I've just updated the proposal:
> >
> https://github.com/luish/swift-evolution/blob/more-lenient-subscripts/proposals/nnnn-more-lenient-collections-subscripts.md#detailed-design
> >
> > - Luis
>
> Hmm. If you're going with `checking` for one of them, perhaps the other
> should be `clamping` (for the analogous method on `Range`, which you might
> want to use in the implementation of that subscript). That would create a
> nicely matched pair:
>
>         array[checking: 0..<10]
>         array[clamping: 0..<10]
>
> --
> Brent Royal-Gordon
> Architechies
>
>
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