1// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
2
3@protocol SUPER; // expected-note {{protocol 'SUPER' has no definition}}
4
5@interface SUPER <SUPER> @end // expected-warning {{cannot find protocol definition for 'SUPER'}}
6
7typedef int INTF; //  expected-note {{previous definition is here}}
8
9@interface INTF @end // expected-error {{redefinition of 'INTF' as different kind of symbol}}
10
11@interface OBJECT @end	// expected-note {{previous definition is here}}
12
13@interface INTF1 : OBJECT @end // expected-note {{previous definition is here}}
14
15@interface INTF1 : OBJECT @end // expected-error {{duplicate interface definition for class 'INTF1'}}
16
17typedef int OBJECT; // expected-error {{redefinition of 'OBJECT' as different kind of symbol}}
18
19typedef int OBJECT2; // expected-note 2 {{previous definition is here}}
20@interface INTF2 : OBJECT2 @end // expected-error {{redefinition of 'OBJECT2' as different kind of symbol}}
21
22@implementation INTF2 : OBJECT2 @end // expected-error {{redefinition of 'OBJECT2' as different kind of symbol}}
23
24@protocol PROTO;
25
26@interface INTF3 : PROTO @end // expected-error {{cannot find interface declaration for 'PROTO', superclass of 'INTF3'}}
27
28// Make sure we allow the following (for GCC compatibility).
29@interface NSObject @end
30typedef NSObject TD_NSObject;
31@interface XCElementUnit : TD_NSObject {}
32@end
33
34// Make sure we don't typo-correct to ourselves.
35@interface SomeClassSub : SomeClassSup // expected-error{{cannot find interface declaration for 'SomeClassSup', superclass of 'SomeClassSub'}}
36@end
37