[swift-evolution] [Accepted] SE-0169: Improve Interaction Between `private` Declarations and Extensions

[Douglas Gregor]

> On Apr 20, 2017, at 11:33 AM, Jordan Rose <jordan_rose at apple.com> wrote:
> 
> 
>> On Apr 18, 2017, at 20:40, Douglas Gregor via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> 
>> This makes the private/fileprivate distinction meaningful for extensions. I think also bans the use of "private" at global scope for non-nominal types or extensions thereof.  A clarifying update to the proposal is in order, so developers can better understand the semantics. 
> 
> Wait, hang on, then people have to write 'fileprivate' instead of 'private' for top-level typealiases (and functions?).

That seems like the correct behavior; private is about members with SE-0169. What do you think?

> Apart from whether or not that's desirable, it's not backwards-compatible.

Very true! It’s an easy thing to migrate, but it’s a source break nonetheless. Let’s decide if it’s desirable and bring it up with the core team.

	- Doug


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