1// RUN: %clang_cc1 -fsyntax-only -x objective-c++ -fobjc-arc -verify -Wno-objc-root-class %s
2// rdar://15454846
3
4typedef struct __attribute__ ((objc_bridge(NSError))) __CFErrorRef * CFErrorRef; // expected-note 5 {{declared here}}
5
6typedef struct __attribute__ ((objc_bridge(MyError))) __CFMyErrorRef * CFMyErrorRef; // expected-note 1 {{declared here}}
7
8typedef struct __attribute__((objc_bridge(12))) __CFMyColor  *CFMyColorRef; // expected-error {{parameter of 'objc_bridge' attribute must be a single name of an Objective-C class}}
9
10typedef struct __attribute__ ((objc_bridge)) __CFArray *CFArrayRef; // expected-error {{'objc_bridge' attribute takes one argument}}
11
12typedef struct __attribute__((objc_bridge(NSLocale, NSError))) __CFLocale *CFLocaleRef;// expected-error {{use of undeclared identifier 'NSError'}}
13
14typedef struct __attribute__((objc_bridge(NSDictionary))) __CFDictionary * CFDictionaryRef;
15
16typedef union __attribute__((objc_bridge(NSUColor))) __CFUPrimeColor XXX;
17typedef XXX *CFUColor2Ref;
18
19@interface I
20{
21}
22@end
23
24@protocol NSTesting @end
25@class NSString;
26
27typedef struct __attribute__((objc_bridge(NSTesting))) __CFError *CFTestingRef; // expected-note {{declared here}}
28
29id Test1(CFTestingRef cf) {
30  return (NSString *)cf; // expected-error {{CF object of type 'CFTestingRef' (aka '__CFError *') is bridged to 'NSTesting', which is not an Objective-C class}} \
31                         // expected-error {{cast of C pointer type 'CFTestingRef' (aka '__CFError *') to Objective-C pointer type 'NSString *' requires a bridged cast}} \
32                         // expected-note {{use __bridge to convert directly (no change in ownership)}} \
33                         // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFTestingRef' (aka '__CFError *') into ARC}}
34}
35
36typedef CFErrorRef CFErrorRef1;
37
38typedef CFErrorRef1 CFErrorRef2; // expected-note 2 {{declared here}}
39
40@protocol P1 @end
41@protocol P2 @end
42@protocol P3 @end
43@protocol P4 @end
44@protocol P5 @end
45
46@interface NSError<P1, P2, P3> @end // expected-note 5 {{declared here}}
47
48@interface MyError : NSError // expected-note 1 {{declared here}}
49@end
50
51@interface NSUColor @end
52
53@class NSString;
54
55void Test2(CFErrorRef2 cf, NSError *ns, NSString *str, Class c, CFUColor2Ref cf2) {
56  (void)(NSString *)cf; // expected-warning {{'CFErrorRef2' (aka '__CFErrorRef *') bridges to NSError, not 'NSString'}} \
57                        // expected-error {{cast of C pointer type 'CFErrorRef2' (aka '__CFErrorRef *') to Objective-C pointer type 'NSString *' requires a bridged cast}} \
58                        // expected-note {{__bridge to convert directly (no change in ownership)}} \
59                        // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef2' (aka '__CFErrorRef *') into ARC}}
60  (void)(NSError *)cf; // expected-error {{cast of C pointer type 'CFErrorRef2' (aka '__CFErrorRef *') to Objective-C pointer type 'NSError *' requires a bridged cast}} \
61                       // expected-note {{use __bridge to convert directly (no change in ownership)}} \
62                       // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef2' (aka '__CFErrorRef *') into ARC}}
63  (void)(MyError*)cf; // expected-error {{cast of C pointer type 'CFErrorRef2' (aka '__CFErrorRef *') to Objective-C pointer type 'MyError *' requires a bridged cast}} \
64                        // expected-note {{__bridge to convert directly (no change in ownership)}} \
65                        // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef2' (aka '__CFErrorRef *') into ARC}} \
66			// expected-warning {{'CFErrorRef2' (aka '__CFErrorRef *') bridges to NSError, not 'MyError'}}
67  (void)(NSUColor *)cf2; // expected-error {{cast of C pointer type 'CFUColor2Ref' (aka '__CFUPrimeColor *') to Objective-C pointer type 'NSUColor *' requires a bridged cast}} \
68                         // expected-note {{use __bridge to convert directly (no change in ownership)}} \
69                         // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFUColor2Ref' (aka '__CFUPrimeColor *') into ARC}}
70  (void)(CFErrorRef)ns; // expected-error {{cast of Objective-C pointer type 'NSError *' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
71                        // expected-note {{use __bridge to convert directly (no change in ownership)}} \
72 			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
73  (void)(CFErrorRef)str;  // expected-warning {{'NSString' cannot bridge to 'CFErrorRef' (aka '__CFErrorRef *')}} \\
74                          // expected-error {{cast of Objective-C pointer type 'NSString *' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
75                        // expected-note {{use __bridge to convert directly (no change in ownership)}} \
76 			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
77  (void)(Class)cf; // expected-warning {{'CFErrorRef2' (aka '__CFErrorRef *') bridges to NSError, not 'Class'}} \\
78                   // expected-error {{cast of C pointer type 'CFErrorRef2' (aka '__CFErrorRef *') to Objective-C pointer type 'Class' requires a bridged cast}} \
79 			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
80			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef2' (aka '__CFErrorRef *') into ARC}}
81  (void)(CFErrorRef)c; // expected-warning {{'__unsafe_unretained Class' cannot bridge to 'CFErrorRef' (aka '__CFErrorRef *')}} \
82                       // expected-error {{cast of Objective-C pointer type 'Class' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
83			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
84			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
85}
86
87
88void Test3(CFErrorRef cf, NSError *ns) {
89  (void)(id)cf; // expected-error {{cast of C pointer type 'CFErrorRef' (aka '__CFErrorRef *') to Objective-C pointer type 'id' requires a bridged cast}} \
90		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
91		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef' (aka '__CFErrorRef *') into ARC}}
92 (void)(id<P1, P2>)cf; // expected-error {{cast of C pointer type 'CFErrorRef' (aka '__CFErrorRef *') to Objective-C pointer type 'id<P1,P2>' requires a bridged cast}} \
93		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
94		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef' (aka '__CFErrorRef *') into ARC}}
95 (void)(id<P1, P2, P4>)cf; // expected-warning {{'CFErrorRef' (aka '__CFErrorRef *') bridges to NSError, not 'id<P1,P2,P4>'}} \
96                           // expected-error {{cast of C pointer type 'CFErrorRef' (aka '__CFErrorRef *') to Objective-C pointer type 'id<P1,P2,P4>' requires a bridged cast}} \
97		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
98		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef' (aka '__CFErrorRef *') into ARC}}
99}
100
101void Test4(CFMyErrorRef cf) {
102   (void)(id)cf; // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') to Objective-C pointer type 'id' requires a bridged cast}} \
103			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
104			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *') into ARC}}
105 (void)(id<P1, P2>)cf; // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') to Objective-C pointer type 'id<P1,P2>' requires a bridged cast}} \
106			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
107			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *') into ARC}}
108 (void)(id<P1, P2, P3>)cf; // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') to Objective-C pointer type 'id<P1,P2,P3>' requires a bridged cast}} \
109			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
110			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *') into ARC}}
111 (void)(id<P2, P3>)cf; // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') to Objective-C pointer type 'id<P2,P3>' requires a bridged cast}} \
112			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
113			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *') into ARC}}
114 (void)(id<P1, P2, P4>)cf; // expected-warning {{'CFMyErrorRef' (aka '__CFMyErrorRef *') bridges to MyError, not 'id<P1,P2,P4>'}} \
115                           // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') to Objective-C pointer type 'id<P1,P2,P4>' requires a bridged cast}} \
116				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
117				// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *') into ARC}}
118}
119
120void Test5(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
121 (void)(CFErrorRef)ID; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
122			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
123			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
124 (void)(CFErrorRef)P123; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3>' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
125			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
126			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
127 (void)(CFErrorRef)P1234; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3,P4>' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
128			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
129			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
130 (void)(CFErrorRef)P12; // expected-error {{cast of Objective-C pointer type 'id<P1,P2>' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
131			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
132			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
133 (void)(CFErrorRef)P23; // expected-error {{cast of Objective-C pointer type 'id<P2,P3>' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
134			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
135			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
136}
137
138void Test6(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
139
140 (void)(CFMyErrorRef)ID; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') requires a bridged cast}} \
141				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
142				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *')}}
143 (void)(CFMyErrorRef)P123; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3>' to C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') requires a bridged cast}} \
144				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
145				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *')}}
146 (void)(CFMyErrorRef)P1234; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3,P4>' to C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') requires a bridged cast}} \
147				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
148				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *')}}
149 (void)(CFMyErrorRef)P12; // expected-error {{cast of Objective-C pointer type 'id<P1,P2>' to C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') requires a bridged cast}} \
150				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
151				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *')}}
152 (void)(CFMyErrorRef)P23; // expected-error {{cast of Objective-C pointer type 'id<P2,P3>' to C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') requires a bridged cast}} \
153				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
154				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *')}}
155}
156
157typedef struct __attribute__ ((objc_bridge(MyPersonalError))) __CFMyPersonalErrorRef * CFMyPersonalErrorRef;  // expected-note 1 {{declared here}}
158
159@interface MyPersonalError : NSError <P4> // expected-note 1 {{declared here}}
160@end
161
162void Test7(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
163 (void)(CFMyPersonalErrorRef)ID; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') requires a bridged cast}} \
164				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
165				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *')}}
166 (void)(CFMyPersonalErrorRef)P123; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3>' to C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') requires a bridged cast}} \
167				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
168				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *')}}
169 (void)(CFMyPersonalErrorRef)P1234; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3,P4>' to C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') requires a bridged cast}} \
170				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
171				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *')}}
172 (void)(CFMyPersonalErrorRef)P12; // expected-error {{cast of Objective-C pointer type 'id<P1,P2>' to C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') requires a bridged cast}} \
173				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
174				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *')}}
175 (void)(CFMyPersonalErrorRef)P23; // expected-error {{cast of Objective-C pointer type 'id<P2,P3>' to C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') requires a bridged cast}} \
176				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
177				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *')}}
178}
179
180void Test8(CFMyPersonalErrorRef cf) {
181  (void)(id)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') to Objective-C pointer type 'id' requires a bridged cast}} \
182		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
183		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
184  (void)(id<P1>)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') to Objective-C pointer type 'id<P1>' requires a bridged cast}} \
185		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
186		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
187  (void)(id<P1, P2>)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') to Objective-C pointer type 'id<P1,P2>' requires a bridged cast}} \
188		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
189		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
190  (void)(id<P1, P2, P3>)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') to Objective-C pointer type 'id<P1,P2,P3>' requires a bridged cast}} \
191		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
192		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
193  (void)(id<P1, P2, P3, P4>)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') to Objective-C pointer type 'id<P1,P2,P3,P4>' requires a bridged cast}} \
194		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
195		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
196  (void)(id<P1, P2, P3, P4, P5>)cf; // expected-warning {{'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') bridges to MyPersonalError, not 'id<P1,P2,P3,P4,P5>'}} \
197                                    // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') to Objective-C pointer type 'id<P1,P2,P3,P4,P5>' requires a bridged cast}} \
198		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
199		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
200}
201
202void Test9(CFErrorRef2 cf, NSError *ns, NSString *str, Class c, CFUColor2Ref cf2) {
203  (void)(__bridge NSString *)cf; // expected-warning {{'CFErrorRef2' (aka '__CFErrorRef *') bridges to NSError, not 'NSString'}}
204  (void)(__bridge NSError *)cf; // okay
205  (void)(__bridge MyError*)cf; // expected-warning {{'CFErrorRef2' (aka '__CFErrorRef *') bridges to NSError, not 'MyError'}}
206  (void)(__bridge NSUColor *)cf2; // okay
207  (void)(__bridge CFErrorRef)ns; // okay
208  (void)(__bridge CFErrorRef)str;  // expected-warning {{'NSString' cannot bridge to 'CFErrorRef' (aka '__CFErrorRef *')}}
209  (void)(__bridge Class)cf; // expected-warning {{'CFErrorRef2' (aka '__CFErrorRef *') bridges to NSError, not 'Class'}}
210  (void)(__bridge CFErrorRef)c; // expected-warning {{'__unsafe_unretained Class' cannot bridge to 'CFErrorRef' (aka '__CFErrorRef *')}}
211}
212