![objc' can only be applied to an extension of a class , calling extension method from swift to objective c - Stack Overflow objc' can only be applied to an extension of a class , calling extension method from swift to objective c - Stack Overflow](https://i.stack.imgur.com/z38ti.png)
objc' can only be applied to an extension of a class , calling extension method from swift to objective c - Stack Overflow
In Objective C, what is the difference between copy and assign (as these are the attributes of property)? What are some examples? - Quora
SR-3349] @objc methods cannot be contained in protocol extensions · Issue #45937 · apple/swift · GitHub
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