[swift-evolution] Change `repeat` to loop indefinitely if no while clause is present

[Austin Zheng]

Sorry, I was trying to quote Haravikk but I didn't do it very clearly.

Austin

On Tue, May 10, 2016 at 1:32 PM, Tyler Cloutier <cloutiertyler at aol.com>
wrote:

>
> On May 10, 2016, at 1:10 PM, Austin Zheng via swift-evolution <
> swift-evolution at swift.org> wrote:
>
> Agreed. I'm not convinced that this actually prevents any more errors than
> it might cause (forgot to finish writing my "repeat" block, and now my app
> is unresponsive), and I don't think there's enough of an expressivity win
> to add another keyword.
>
>
> Certainly it’s not adding a new keyword, however it is changing the
> meaning of a keyword.
>
>
> Austin
>
> On Tue, May 10, 2016 at 1:04 PM, Haravikk via swift-evolution <
> swift-evolution at swift.org> wrote:
>
>>
>> On 10 May 2016, at 08:27, Nicholas Maccharoli via swift-evolution <
>> swift-evolution at swift.org> wrote:
>>
>> But I think it might be best to change the syntax / behaviour of `repeat`
>> to loop
>> indefinitely if no trailing while clause is present:
>>
>>     repeat {
>>         if ... { break }
>>         //...
>>     }
>>
>>
>> -1 from me on both counts; the thing I like about while true is that it’s
>> explicit about what I meant, whereas a repeat block with no while clause is
>> indistinguishable from me forgetting to include one, or me wanting an
>> infinite loop.
>>
>> An alternative could be to add a new “forever” keyword or something
>> similar, replacing while true wherever applicable, but personally I don’t
>> think it’s that important.
>>
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>>
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