1// RUN: %clang_cc1 -fsyntax-only -verify -Wattributes -Wobjc-root-class %s
2@interface RootClass {} // expected-warning {{class 'RootClass' defined without specifying a base class}} \
3                        // expected-note {{add a super class to fix this problem}}
4@end
5@implementation RootClass
6@end
7
8__attribute__((objc_root_class))
9@interface NonRootClass : RootClass   // expected-error {{objc_root_class attribute may only be specified on a root class declaration}}
10@end
11@implementation NonRootClass
12@end
13
14__attribute__((objc_root_class)) static void nonClassDeclaration()  // expected-error {{'objc_root_class' attribute only applies to Objective-C interfaces}}
15{
16}
17
18__attribute__((objc_root_class(1))) // expected-error {{'objc_root_class' attribute takes no arguments}}
19@interface I1
20@end
21