Question

I have 2 classes, Parent and Child, and Parent has a class method named func.
Now I want to get Class instance in func method to distinguish which class is caller.

@interface Parent : NSObject
+ (void)func;
@end

@implementation Parent

+ (void)func {
    Class *class = howToGetClass();
    NSLog(@"%@ call func", class);
}

@end

@interface Child : Parent
@end

int main() {
    [Child func];    // call func from Child
}

Is there any way to get class instance (or class name) in class method?

Answer 1

If you just want to log it/get it as a Class, you just need self. Thats it. So like

+ (void)func {
    Class class = self;
    NSLog(@"%@ call func", class);
}

or

+ (void)func {
    NSLog(@"%@ call func", self);
}

also, if you want to get the name as an NSString, NSStringFromClass(self) has you covered. (As a char *, class_getName(self) is what you’re looking for)