1// RUN: %clang_cc1 -fobjc-runtime-has-weak -fobjc-weak -fsyntax-only -verify %s
2
3__attribute__((objc_root_class))
4@interface A
5@property (weak) id wa; // expected-note {{property declared here}}
6@property (weak) id wb;
7@property (weak) id wc; // expected-note {{property declared here}}
8@property (weak) id wd;
9@property (unsafe_unretained) id ua;
10@property (unsafe_unretained) id ub; // expected-note {{property declared here}}
11@property (unsafe_unretained) id uc;
12@property (unsafe_unretained) id ud;
13@property (strong) id sa;
14@property (strong) id sb; // expected-note {{property declared here}}
15@property (strong) id sc;
16@property (strong) id sd;
17@end
18
19@implementation A {
20  id _wa; // expected-error {{existing instance variable '_wa' for __weak property 'wa' must be __weak}}
21  __weak id _wb;
22  __unsafe_unretained id _wc; // expected-error {{existing instance variable '_wc' for __weak property 'wc' must be __weak}}
23  id _ua;
24  __weak id _ub; // expected-error {{existing instance variable '_ub' for property 'ub' with unsafe_unretained attribute must be __unsafe_unretained}}
25  __unsafe_unretained id _uc;
26  id _sa;
27  __weak id _sb; // expected-error {{existing instance variable '_sb' for strong property 'sb' may not be __weak}}
28  __unsafe_unretained id _sc;
29}
30@synthesize wa = _wa; // expected-note {{property synthesized here}}
31@synthesize wb = _wb;
32@synthesize wc = _wc; // expected-note {{property synthesized here}}
33@synthesize wd = _wd;
34@synthesize ua = _ua;
35@synthesize ub = _ub; // expected-note {{property synthesized here}}
36@synthesize uc = _uc;
37@synthesize ud = _ud;
38@synthesize sa = _sa;
39@synthesize sb = _sb; // expected-note {{property synthesized here}}
40@synthesize sc = _sc;
41@synthesize sd = _sd;
42@end
43
44void test_goto() {
45  goto after; // expected-error {{cannot jump from this goto statement to its label}}
46  __weak id x; // expected-note {{jump bypasses initialization of __weak variable}}}
47after:
48  return;
49}
50
51void test_weak_cast(id *value) {
52  __weak id *a = (__weak id*) value;
53  id *b = (__weak id*) value; // expected-error {{initializing 'id *' with an expression of type '__weak id *' changes retain/release properties of pointer}}
54  __weak id *c = (id*) value; // expected-error {{initializing '__weak id *' with an expression of type 'id *' changes retain/release properties of pointer}}
55}
56
57void test_unsafe_unretained_cast(id *value) {
58  __unsafe_unretained id *a = (__unsafe_unretained id*) value;
59  id *b = (__unsafe_unretained id*) value;
60  __unsafe_unretained id *c = (id*) value;
61}
62
63void test_cast_qualifier_inference(__weak id *value) {
64  __weak id *a = (id*) value;
65  __unsafe_unretained id *b = (id *)value; // expected-error {{initializing 'id *' with an expression of type '__weak id *' changes retain/release properties of pointer}}
66}
67
68