[swift-evolution] Type-based ‘private’ access within a file

Charlie Monroe charlie at charliemonroe.net
Mon Apr 3 15:04:11 CDT 2017

Exactly, this is pretty much what "protected" does - as much as there are voices against the idea to base access control based on the type, it is actually unevitable in the future IMHO anyway.

I'd personally leave the private/fileprivate access levels as they are currently and would focus the efforts on finding a nice way to express the semantics that a certain member is accessible only from within extensions or the type's subtype.

> On Apr 3, 2017, at 9:50 PM, David Hart via swift-evolution <swift-evolution at swift.org> wrote:
> The problem I see with that is that it would introduce orthogonal access levels whereas they have all been hierarchal in nature up to now.
>> On 3 Apr 2017, at 21:36, Charles Srstka <cocoadev at charlessoft.com <mailto:cocoadev at charlessoft.com>> wrote:
>>> On Apr 3, 2017, at 2:28 PM, David Hart via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>>> Btw, I know what I'm going to propose is a bit crazy, but how about making private visible to extensions even outside the file but in the same module?
>> That’s actually what I suggested in my original post on the topic. My feeling was that it would allow breaking a particularly large type into separate files, thus alleviating the “huge file” problem that Swift has (and which Charlie Monroe brought up as a concern).
>> It’s still what I’d prefer personally, although I can understand why the core team might want to restrict it to files.
>> Charles
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