Objective-c – List selectors for Objective-C object


I have an object, and I want to list all the selectors to which it responds. It feels like this should be perfectly possible, but I'm having trouble finding the APIs.

Best Solution

This is a solution based on the runtime C functions:

class_copyMethodList returns a list of class methods given a Class object obtainable from an object.

#import <objc/runtime.h>


SomeClass * t = [[SomeClass alloc] init];

int i=0;
unsigned int mc = 0;
Method * mlist = class_copyMethodList(object_getClass(t), &mc);
NSLog(@"%d methods", mc);
    NSLog(@"Method no #%d: %s", i, sel_getName(method_getName(mlist[i])));

/* note mlist needs to be freed */