[swift-evolution] [Pitch] Improving capturing semantics of local functions

[Thorsten Seitz]

> Am 21.11.2017 um 04:00 schrieb Chris Lattner via swift-evolution <swift-evolution at swift.org>:
> 
> 
>> On Nov 12, 2017, at 8:52 PM, Slava Pestov via swift-evolution <swift-evolution at swift.org> wrote:
>> 
>> 
>> func fn<T>(param: T) throws -> T where T : Equatable [foo, bar] { … }
> 
> +1, potentially adding a context sensitive keyword like “capturing” before it.

+1 including the keyword "capturing"

-Thorsten

> 
>> I think #4 is ambiguous with array literals unfortunately.
>> 
>> Perhaps this proposal should be split in two — the ‘self.’/escaping part is source breaking, and will likely require more discussion. Adding capture lists to local functions seems like a more straightforward change.
> 
> +1.
> 
> -Chris
> 
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