In Objective-C, when are metaclass object and class object created?
objective-c, objective-c-runtime
Solution
At the point that the class is added to the class hierarchy. This is generally when the app is launched, but could be later if the class is added by a dynamically loaded library or is created programatically.
The class object and metaclass have to exist at the time that `+load` is called (which is the above).
Problem
In Objective-C, when are the class pairs - metaclass object and class object, created? Is it in the beginning of the app execution or at the point when you first instantiate the first object of a class?