1// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fobjc-arc -verify %s
2
3typedef const struct __CFString * CFStringRef;
4typedef const void * CFTypeRef;
5extern "C" CFTypeRef CFBridgingRetain(id X);
6extern "C" id CFBridgingRelease(CFTypeRef);
7
8
9@interface Object
10@property CFStringRef property;
11- (CFStringRef) implicitProperty;
12- (CFStringRef) newString;
13- (CFStringRef) makeString;
14@end
15
16extern Object *object;
17
18// rdar://9744349
19id test0(void) {
20  id p1 = (id)[object property];
21  id p2 = (__bridge_transfer id)[object property];
22  id p3 = (__bridge id)[object property];
23  return (id) object.property;
24}
25
26// rdar://10140692
27CFStringRef unauditedString(void);
28CFStringRef plusOneString(void) __attribute__((cf_returns_retained));
29
30#pragma clang arc_cf_code_audited begin
31CFStringRef auditedString(void);
32CFStringRef auditedCreateString(void);
33#pragma clang arc_cf_code_audited end
34
35void test1(int cond) {
36  id x;
37  x = (id) auditedString();
38  x = (id) (cond ? auditedString() : (void*) 0);
39  x = (id) (cond ? (void*) 0 : auditedString());
40  x = (id) (cond ? (CFStringRef) @"help" : auditedString());
41
42  x = (id) unauditedString(); // expected-error {{requires a bridged cast}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRelease call to}}
43  x = (id) (cond ? unauditedString() : (void*) 0); // expected-error {{requires a bridged cast}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRelease call to}}
44  x = (id) (cond ? (void*) 0 : unauditedString()); // expected-error {{requires a bridged cast}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRelease call to}}
45  x = (id) (cond ? (CFStringRef) @"help" : unauditedString()); // expected-error {{requires a bridged cast}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRelease call to}}
46
47  x = (id) auditedCreateString(); // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRelease call to}}
48  x = (id) (cond ? auditedCreateString() : (void*) 0); // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRelease call to}}
49  x = (id) (cond ? (void*) 0 : auditedCreateString()); // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRelease call to}}
50  x = (id) (cond ? (CFStringRef) @"help" : auditedCreateString()); // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRelease call to}}
51
52  x = (id) [object property];
53  x = (id) (cond ? [object property] : (void*) 0);
54  x = (id) (cond ? (void*) 0 : [object property]);
55  x = (id) (cond ? (CFStringRef) @"help" : [object property]);  
56
57  x = (id) object.property;
58  x = (id) (cond ? object.property : (void*) 0);
59  x = (id) (cond ? (void*) 0 : object.property);
60  x = (id) (cond ? (CFStringRef) @"help" : object.property);  
61
62  x = (id) object.implicitProperty;
63  x = (id) (cond ? object.implicitProperty : (void*) 0);
64  x = (id) (cond ? (void*) 0 : object.implicitProperty);
65  x = (id) (cond ? (CFStringRef) @"help" : object.implicitProperty);  
66
67  x = (id) [object makeString];
68  x = (id) (cond ? [object makeString] : (void*) 0);
69  x = (id) (cond ? (void*) 0 : [object makeString]);
70  x = (id) (cond ? (CFStringRef) @"help" : [object makeString]);  
71
72  x = (id) [object newString];
73  x = (id) (cond ? [object newString] : (void*) 0);
74  x = (id) (cond ? (void*) 0 : [object newString]);
75  x = (id) (cond ? (CFStringRef) @"help" : [object newString]); // a bit questionable
76}
77
78// rdar://problem/10246264
79@interface CFTaker
80- (void) takeOrdinary: (CFStringRef) arg;
81- (void) takeVariadic: (int) n, ...;
82- (void) takeConsumed: (CFStringRef __attribute__((cf_consumed))) arg;
83@end
84void testCFTaker(CFTaker *taker, id string) {
85  [taker takeOrdinary: (CFStringRef) string];
86  [taker takeVariadic: 1, (CFStringRef) string];
87  [taker takeConsumed: (CFStringRef) string]; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}}
88}
89
90void takeCFOrdinaryUnaudited(CFStringRef arg);
91void takeCFVariadicUnaudited(int n, ...);
92void takeCFConsumedUnaudited(CFStringRef __attribute__((cf_consumed)) arg);
93#pragma clang arc_cf_code_audited begin
94void takeCFOrdinaryAudited(CFStringRef arg);
95void takeCFVariadicAudited(int n, ...);
96void takeCFConsumedAudited(CFStringRef __attribute__((cf_consumed)) arg);
97#pragma clang arc_cf_code_audited end
98
99void testTakerFunctions(id string) {
100  takeCFOrdinaryUnaudited((CFStringRef) string); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}}
101  takeCFVariadicUnaudited(1, (CFStringRef) string); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}}
102  takeCFConsumedUnaudited((CFStringRef) string); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}}
103
104  void (*taker)(CFStringRef) = 0;
105  taker((CFStringRef) string); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}}
106
107  takeCFOrdinaryAudited((CFStringRef) string);
108  takeCFVariadicAudited(1, (CFStringRef) string);
109  takeCFConsumedAudited((CFStringRef) string); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}}
110}
111
112// rdar://12788838
113id obj;
114
115void rdar12788838() {
116  void *foo = reinterpret_cast<void *>(obj); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'void *' requires a bridged cast}} \
117		// expected-note {{use __bridge with C-style cast to convert directly}} \
118		// expected-note {{use CFBridgingRetain call to make an ARC object available as a +1 'void *'}}
119}
120