[swift-evolution] [Pitch] Non-class type requirements on protocols (eg : struct, : enum)

Dave Abrahams dabrahams at apple.com
Fri Oct 21 14:11:22 CDT 2016

on Fri Oct 21 2016, Adrian Zubarev <adrian.zubarev-AT-devandartist.com> wrote:

> Does this constraint exclude COW or are we still allowed to have a reference type for storage behind
> the scenes?

It does not exclude CoW.  Array has value semantics.

> -- 
> Adrian Zubarev
> Sent with Airmail
> Am 21. Oktober 2016 um 19:50:31, Dave Abrahams via swift-evolution (swift-evolution at swift.org)
> schrieb:
> I'm not sure what you mean by “data-only,” but the constraint I want is
> “has value semantics.”


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