[swift-evolution] [Review] SE-0159: Fix Private Access Levels

Charles Srstka cocoadev at charlessoft.com
Sun Mar 26 12:15:23 CDT 2017

> On Mar 26, 2017, at 11:57 AM, David Sweeris via swift-evolution <swift-evolution at swift.org> wrote:
> On Mar 26, 2017, at 08:50, David James via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> • What is your evaluation of the proposal?
>> -1 as written (see below)
>> • Is the problem being addressed significant enough to warrant a change to Swift?
>> Not as written
>> • Does this proposal fit well with the feel and direction of Swift?
>> It does in terms of apparent simplicity, but not in terms of practicality. I like to think of Swift as a practical language that does not sacrifice utility for apparent simplicity.
>> • If you have used other languages or libraries with a similar feature, how do you feel that this proposal compares to those?
>> Can’t be compared. Swift has already set a precedent by making “private” mean something non-traditional (pre SE-0025), and I think it was a good decision, taking us away from the idea that private is only useful with parent inheritance structures. 
>> • How much effort did you put into your review? A glance, a quick reading, or an in-depth study?
>> Have been following it since SE-0025, the aftermath, extensive experience using the modifiers in framework code I write and reading all related threads on SE.
>> ***
>> I propose instead that we revise to use Alternative #3, per Vladimir’s comment and revision.
>> Revised version:
>> “3. Revert private to be file-based and introduce the scope-based access level under a new name (e.g.: scoped, local, etc), provided that the scope-based access modifier is not used at the top level of the file.” 
>> (addendum via Vladimir’s revised comment)
> Yeah, within reason, I couldn't care less how "private"/"fileprivate" are spelled. What I'm against is removing the functionalityof the current "private" without simultaneously providing a semantically equivalent replacement.

I’ll second that. Don’t care what the scoped access modifier is called, as long as there is one.


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