[swift-evolution] final + lazy + fileprivate modifiers

[David Sweeris]

> On Feb 17, 2017, at 9:48 AM, Xiaodi Wu via swift-evolution <swift-evolution at swift.org> wrote:
> 
> What you are really asking for is a way of flexibly designating a "unit of code" within a module, for which the general solution is submodules. The objection is that, instead of tackling that issue, these are suggestions to invent ad-hoc units of code (scope + extensions only in the same file, scope + extensions only in the same module, class + extensions only in the same file + subclasses only in the same module), and it is possible to invent arbitrary many of these.
> 
> There is, objectively, an actual minimum number of access modifiers, which is two. Those two are: visible only inside the unit of code, or visible both inside and outside the unit of code. In Swift, those are spelled internal and public. Everything else here is really talking about better or more flexible ways of defining a unit of code.

Wasn’t there a thread about submodules a while back? I’m pretty sure I remember reading some back and forth about it here, but I don’t recall any conclusions.

- Dave Sweeris