[swift-evolution] [Pitch] @testable private members

[Matthew Johnson]

Sent from my iPad

> On Feb 19, 2017, at 12:08 AM, Robert Widmann <devteam.codafi at gmail.com> wrote:
> 
> @testable is already a hack.  Why not just extend it to fileprivate members?

That would be fine with me if others prefer that solution.  It certainly leaves the rest of our code a lot cleaner.

> 
> ~Robert Widmann
> 
>> On Feb 18, 2017, at 1:14 PM, Matthew Johnson via swift-evolution <swift-evolution at swift.org> wrote:
>> 
>> When writing unit tests sometimes it is necessary to artificially elevate a member to `internal` in order to make it visible to unit tests where it could otherwise be `private` or `fileprivate`.  We could introduce an `@testable` attribute that could be applied anywhere an access modifier is used.  This attribute would elevate the access modifier to `internal` when the module is imported using the `@testable import MyModule` syntax in a test suite.
>> 
>> Is this something that others have interest in?  Is it something that might be considered for Swift 4 now that phase 2 has begun?
>> 
>> Matthew
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