What's the difference between a protocol extended from AnyObject and a class-only protocol?

Question

Both this declaration

protocol SomeProtocol : AnyObject {
}

and this declaration

protocol SomeProtocol : class {
}
<         


        

Answer 1

I misspoke before. @MartinR should really answer this, since he's the one who corrected me and provided the correct information.

The real difference is that a protocol with the class qualifier can only be applied to a class, not a struct or enum.

Martin, why don't you answer and the OP can accept your answer?