Spelunking, dispatch style

gistfile1.m

#import <Foundation/Foundation.h>
#import <dispatch/dispatch.h>
#import <objc/runtime.h>

void printMethodList(Class cls, const char *prefix)
{
	const char *className = class_getName(cls);
	unsigned int countOfMethods;
	Method *methodList = class_copyMethodList(cls, &countOfMethods);
	for(unsigned int i = 0; i < countOfMethods; i++)
	{
		SEL aSelector = method_getName(methodList[i]);
		const char *selectorName = sel_getName(aSelector);
		printf("%s[%s %s]\n", prefix, className, selectorName);
	}
	free(methodList);
}

int main(int argc, char *argv[]) {
	@autoreleasepool {
		dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
		id q = (__bridge id)queue;
		Class DispatchQueue = [q class];
		Class ThisClass = DispatchQueue;
		do {
			printMethodList(ThisClass, "-");
			Class MetaClass = object_getClass(ThisClass);
			printMethodList(MetaClass, "+");
			ThisClass = class_getSuperclass(ThisClass);
		} while (ThisClass != Nil);
	}
}