> On Jan 4, 2017, at 20:48, Douglas Gregor via swift-evolution
> <[email protected]> wrote:
>
> Yeah. I'm less sure about the other enhancements to existentials fitting into
> Swift 4, e.g., the creation of existentials for protocols with associated
> types. Although important, it's a big feature that will take a bunch of
> design and implementation time, and I'm leery of accepting something that we
> might not actually be able to achieve.
If it's a feature we know we want, it seems that nailing the syntax down, even
if we know there isn't time to actually fully implement it in 4.0, would be
beneficial simply to prevent it from being a source-breaking change in 4.1.
- Dave Sweeris
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