ObjFW  Diff

	return class_getMethodImplementation(self, selector);
#else
	return method_get_imp(class_get_instance_method(self, selector));
#endif
}

+ (IMP)setImplementation: (IMP)newimp
	       forMethod: (SEL)selector
       forInstanceMethod: (SEL)selector
{
#ifdef OF_APPLE_RUNTIME
	Method method;

	if ((method = class_getInstanceMethod(self, selector)) == NULL)
		@throw [OFInvalidArgumentException newWithClass: self
						       selector: _cmd];

		sarray_at_put_safe(((Class)self)->dtable,
		    (sidx)method->method_name->sel_id, method->method_imp);

	return oldimp;
#endif
}

+  (IMP)replaceMethod: (SEL)selector
  withMethodFromClass: (Class)class;
+  (IMP)replaceInstanceMethod: (SEL)selector
  withInstanceMethodFromClass: (Class)class;
{
	IMP newimp;

#ifdef OF_APPLE_RUNTIME
	newimp = class_getMethodImplementation(class, selector);
#else
	newimp = method_get_imp(class_get_instance_method(class, selector));
#endif

	return [self setImplementation: newimp
			     forMethod: selector];
		     forInstanceMethod: selector];
}

- init
{
	return self;
}