Objective-c get object that was called selector

Question

Is it possible to get id pointer to object which was called selector inside function with no sender argument?

- (void)didSomeThing {//delegate method may call from any object
//how to get sender = someObj?
id sender = ??
} 
....
//calling
[someObj didSomeThing];
...

Why does the method need to know the caller? (It's usually a bad way to design things.) — Phillip Mills, Sep 06 '16 at 14:22
i know it is bad, but i have a lib with bugs and i have just headers and many delegate selectors. How to get selector called class name? — AleyRobotics, Sep 06 '16 at 14:26
it's great, but back trace not working with hidden selectors inside C libs — AleyRobotics, Sep 06 '16 at 14:34

score 2 · Accepted Answer · answered Sep 06 '16 at 14:31

You can't find out who is sender.

Every time you send message to object compiler transform it to:

objc_msgSend(receiver, selector, arg1, arg2, ...)

As you can see here is no way you can find out who is calling method except passing sender as parameter.

You can read more about it here in documentation

Objective-c get object that was called selector

1 Answers1