1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
// RUN: cp %s %t
// RUN: %clang_cc1 -x objective-c -fixit %t
// RUN: %clang_cc1 -x objective-c -Werror %t
void object_setClass(id, id);
Class object_getClass(id);
id rhs(void);
Class pr6302(id x123) {
x123->isa = 0;
x123->isa = rhs();
x123->isa = (id)(x123->isa);
x123->isa = (id)x123->isa;
x123->isa = (x123->isa);
x123->isa = (id)(x123->isa);
return x123->isa;
}
@interface BaseClass {
@public
Class isa; // expected-note 3 {{instance variable is declared here}}
}
@end
@interface OtherClass {
@public
id firstIvar;
Class isa; // note, not first ivar;
}
@end
@interface Subclass : BaseClass @end
@interface SiblingClass : BaseClass @end
@interface Root @end
@interface hasIsa : Root {
@public
Class isa; // note, isa is not in root class
}
@end
@implementation Subclass
-(void)method {
hasIsa *u;
id v;
BaseClass *w;
Subclass *x;
SiblingClass *y;
OtherClass *z;
(void)v->isa;
(void)w->isa;
(void)x->isa;
(void)y->isa;
(void)z->isa;
(void)u->isa;
y->isa = 0;
y->isa = w->isa;
x->isa = rhs();
}
@end
|
