1// RUN: %clang_cc1 -fsyntax-only -verify %s
2
3@interface MyBase
4- (void) rootInstanceMethod;
5@end
6
7@interface MyIntermediate: MyBase
8@end
9
10@interface MyDerived: MyIntermediate
11- (void) instanceMethod;
12+ (void) classMethod;
13@end
14
15@implementation MyDerived
16- (void) instanceMethod {
17}
18
19+ (void) classMethod {                    /* If a class method is not found, the root  */
20    [self rootInstanceMethod];            /* class is searched for an instance method  */
21    [MyIntermediate rootInstanceMethod];  /* with the same name.                       */
22
23    [self instanceMethod];// expected-warning {{'+instanceMethod' not found (return type defaults to 'id')}}
24    [MyDerived instanceMethod];// expected-warning {{'+instanceMethod' not found (return type defaults to 'id')}}
25}
26@end
27
28@interface Object @end
29
30@interface Class1
31- (void)setWindow:(Object *)wdw;
32@end
33
34@interface Class2
35- (void)setWindow:(Class1 *)window;
36@end
37
38#define nil (void*)0
39
40id foo(void) {
41  Object *obj;
42  id obj2 = obj;
43  [obj setWindow:nil]; // expected-warning {{'Object' may not respond to 'setWindow:'}}
44
45  return obj;
46}
47