[swift-evolution] [swift-evolution-announce] [Accepted with Revision] SE-0177: Allow distinguishing between public access and public overridability

[Brent Royal-Gordon]

> On Jul 27, 2016, at 6:43 PM, Matthew Johnson <matthew at anandabits.com> wrote:
> 
>> In a future version of Swift, we might consider refining this by requiring people to apply `@testable` directly to declarations which treat something closed as if it's open, but it seems like even the current feature set does not make testing impossible.
> 
> +1 to @testable on declarations.  I really do not like making things internal when they should be private just because a test needs to inspect state.

Whoa, that wasn't what I was suggesting at all. I was suggesting that the *test suite* should mark the forbidden subclass/override with `@testable`.

-- 
Brent Royal-Gordon
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