> On 7. Jun 2017, at 11:29, Jens Persson via swift-users
> <swift-users@swift.org> wrote:
>
> I see, this quote from the introduction of SE-0142 is not to be taken
> literally then:
>
> For example, the SequenceType protocol could be declared as follows if the
> current proposal was accepted:
>
> protocol Sequence {
> associatedtype Iterator : IteratorProtocol
> associatedtype SubSequence : Sequence where SubSequence.Iterator.Element
> == Iterator.Element
> ...
> }
>
> Don't want to nitpick, but it's hard to follow Swift's evolution when
> proposals like eg SE-0142 (and eg SE-0110) can have status "implemented"
> even though they contain statements and examples like the above which simply
> are not true (when compared to the compiler which supposedly implements the
> proposal).
>
> Is there somewhere I can see what *part(s)* of an "implemented" proposal are
> *actually implemented*?
>
> Otherwise, I think it would be less confusing if partly implemented proposals
> were marked as such.
>
> /Jens
>
I think that’s just a poor example in the proposal. Constraining "SubSequence:
Sequence" is not actually part of SE-0142.
As for implementation status, usually I check the changelog
(https://github.com/apple/swift/blob/master/CHANGELOG.md
<https://github.com/apple/swift/blob/master/CHANGELOG.md>)
- Karl
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