[swift-evolution] Proposal: Enum 'count' functionality

[Rob Mayoff]

On Tue, Dec 22, 2015 at 12:33 AM, Zef Houssney via swift-evolution <
swift-evolution at swift.org> wrote:

> I agree with Stephen Celis that the best names for this (yet) are
> definitely `cases` and optionally `rawValues` if the cases are
> RawRepresentable.
>

That makes me want to say `for case in SomeEnum.cases { ... }`, which is a
syntax error, as opposed to `for value in SomeEnum.values { ... }`, which
is legal.
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