On Aug 18, 2015, at 14:50 , Charles Srstka <cocoa...@charlessoft.com> wrote:
> 
> Look a little closer, and you’ll notice that the app code was in Swift (like 
> your app would be), and the framework code was in Objective-C (like the 
> Foundation/AppKit classes are).

Actually, I did look, but obviously I did not see.

But, in my own defense, I was looking for verification first that the mechanism 
is safe in 100% pure Swift. The next thing to verify is whether it’s safe with 
an @objc base class in Swift. Only if both those things are safe does it make 
any sense to wonder if an Obj-C base class is safe.

However, the test you did doesn’t give much cause for optimism. I suppose 
*selectors* would have to be namespaced to solve the problem for the Obj-C 
runtime, wouldn’t it? For compatibility reasons, that seems unlikely, which 
makes it unlikely that this problem will ever be solved for Cocoa frameworks.



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