Hi, Adrian. Can you explain why you want to make this change? “public” on an
extension doesn’t mean anything by itself because you can’t refer to an
extension as an entity in and of itself. Access modifiers are disallowed on
extensions with protocols because the conformance isn’t controlled by the
access modifier and we didn’t want to give the impression that it would.
There’s really no such thing as an “implicitly public extension”. An extension
is just a bag of additional members and conformances. An access modifier on the
extension sets the default access level of members in the extension as a
convenience.
Jordan
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