The pile of poo Objective-C method

pileOfPoo.m

#import <Foundation/Foundation.h>

@interface A: NSObject
@end

@implementation A

void pileOfPoo(id self, SEL _cmd) {
	NSLog(@"💩");
}

+ (BOOL)resolveInstanceMethod: (SEL)name {
	if ([NSStringFromSelector(name) isEqualToString: @"💩"]) {
		class_addMethod([self class], name, (IMP)pileOfPoo, "v@:");
		return YES;
	} else return NO;
}
@end

int main(int argc, char *argv[]) {
	@autoreleasepool {
		A *a = [[A alloc] init];
		SEL aSelector = NSSelectorFromString(@"💩");
		[a performSelector: aSelector];
	}
	return 0;
}

Who's A? :-)