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 void *  __attribute__ ((objc_bridge(NSURL))) CFURLRef;  // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}}
13
14typedef void * CFStringRef __attribute__ ((objc_bridge(NSString))); // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}}
15
16typedef struct __attribute__((objc_bridge(NSLocale, NSError))) __CFLocale *CFLocaleRef;// expected-error {{use of undeclared identifier 'NSError'}}
17
18typedef struct __CFData __attribute__((objc_bridge(NSData))) CFDataRef; // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}}
19
20typedef struct __attribute__((objc_bridge(NSDictionary))) __CFDictionary * CFDictionaryRef;
21
22typedef struct __CFSetRef * CFSetRef __attribute__((objc_bridge(NSSet))); // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}}
23
24typedef union __CFUColor __attribute__((objc_bridge(NSUColor))) * CFUColorRef; // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}}
25
26typedef union __CFUColor __attribute__((objc_bridge(NSUColor))) * CFUColorRef; // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}}
27
28typedef union __CFUColor __attribute__((objc_bridge(NSUColor))) *CFUColor1Ref; // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}}
29
30typedef union __attribute__((objc_bridge(NSUColor))) __CFUPrimeColor XXX;
31typedef XXX *CFUColor2Ref;
32
33@interface I
34{
35   __attribute__((objc_bridge(NSError))) void * color; // expected-error {{'objc_bridge' attribute only applies to structs, unions, classes, and typedefs}};
36}
37@end
38
39@protocol NSTesting @end
40@class NSString;
41
42typedef struct __attribute__((objc_bridge(NSTesting))) __CFError *CFTestingRef; // expected-note {{declared here}}
43
44id Test1(CFTestingRef cf) {
45  return (NSString *)cf; // expected-error {{CF object of type 'CFTestingRef' (aka 'struct __CFError *') is bridged to 'NSTesting', which is not an Objective-C class}} \
46                         // expected-error {{cast of C pointer type 'CFTestingRef' (aka 'struct __CFError *') to Objective-C pointer type 'NSString *' requires a bridged cast}} \
47                         // expected-note {{use __bridge to convert directly (no change in ownership)}} \
48                         // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFTestingRef' (aka 'struct __CFError *') into ARC}}
49}
50
51typedef CFErrorRef CFErrorRef1;
52
53typedef CFErrorRef1 CFErrorRef2; // expected-note 2 {{declared here}}
54
55@protocol P1 @end
56@protocol P2 @end
57@protocol P3 @end
58@protocol P4 @end
59@protocol P5 @end
60
61@interface NSError<P1, P2, P3> @end // expected-note 5 {{declared here}}
62
63@interface MyError : NSError // expected-note 1 {{declared here}}
64@end
65
66@interface NSUColor @end
67
68@class NSString;
69
70void Test2(CFErrorRef2 cf, NSError *ns, NSString *str, Class c, CFUColor2Ref cf2) {
71  (void)(NSString *)cf; // expected-warning {{'CFErrorRef2' (aka 'struct __CFErrorRef *') bridges to NSError, not 'NSString'}} \
72                        // expected-error {{cast of C pointer type 'CFErrorRef2' (aka 'struct __CFErrorRef *') to Objective-C pointer type 'NSString *' requires a bridged cast}} \
73                        // expected-note {{__bridge to convert directly (no change in ownership)}} \
74                        // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef2' (aka 'struct __CFErrorRef *') into ARC}}
75  (void)(NSError *)cf; // expected-error {{cast of C pointer type 'CFErrorRef2' (aka 'struct __CFErrorRef *') to Objective-C pointer type 'NSError *' requires a bridged cast}} \
76                       // expected-note {{use __bridge to convert directly (no change in ownership)}} \
77                       // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef2' (aka 'struct __CFErrorRef *') into ARC}}
78  (void)(MyError*)cf; // expected-error {{cast of C pointer type 'CFErrorRef2' (aka 'struct __CFErrorRef *') to Objective-C pointer type 'MyError *' requires a bridged cast}} \
79                        // expected-note {{__bridge to convert directly (no change in ownership)}} \
80                        // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef2' (aka 'struct __CFErrorRef *') into ARC}} \
81			// expected-warning {{'CFErrorRef2' (aka 'struct __CFErrorRef *') bridges to NSError, not 'MyError'}}
82  (void)(NSUColor *)cf2; // expected-error {{cast of C pointer type 'CFUColor2Ref' (aka 'union __CFUPrimeColor *') to Objective-C pointer type 'NSUColor *' requires a bridged cast}} \
83                         // expected-note {{use __bridge to convert directly (no change in ownership)}} \
84                         // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFUColor2Ref' (aka 'union __CFUPrimeColor *') into ARC}}
85  (void)(CFErrorRef)ns; // expected-error {{cast of Objective-C pointer type 'NSError *' to C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') requires a bridged cast}} \
86                        // expected-note {{use __bridge to convert directly (no change in ownership)}} \
87 			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
88  (void)(CFErrorRef)str;  // expected-warning {{'NSString' cannot bridge to 'CFErrorRef' (aka 'struct __CFErrorRef *')}} \\
89                          // expected-error {{cast of Objective-C pointer type 'NSString *' to C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') requires a bridged cast}} \
90                        // expected-note {{use __bridge to convert directly (no change in ownership)}} \
91 			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
92  (void)(Class)cf; // expected-warning {{'CFErrorRef2' (aka 'struct __CFErrorRef *') bridges to NSError, not 'Class'}} \\
93                   // expected-error {{cast of C pointer type 'CFErrorRef2' (aka 'struct __CFErrorRef *') to Objective-C pointer type 'Class' requires a bridged cast}} \
94 			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
95			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef2' (aka 'struct __CFErrorRef *') into ARC}}
96  (void)(CFErrorRef)c; // expected-warning {{'__unsafe_unretained Class' cannot bridge to 'CFErrorRef' (aka 'struct __CFErrorRef *}} \\
97                       // expected-error {{cast of Objective-C pointer type 'Class' to C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') requires a bridged cast}} \
98			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
99			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
100}
101
102
103void Test3(CFErrorRef cf, NSError *ns) {
104  (void)(id)cf; // expected-error {{cast of C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') to Objective-C pointer type 'id' requires a bridged cast}} \
105		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
106		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef' (aka 'struct __CFErrorRef *') into ARC}}
107 (void)(id<P1, P2>)cf; // expected-error {{cast of C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') to Objective-C pointer type 'id<P1,P2>' requires a bridged cast}} \
108		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
109		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef' (aka 'struct __CFErrorRef *') into ARC}}
110 (void)(id<P1, P2, P4>)cf; // expected-warning {{'CFErrorRef' (aka 'struct __CFErrorRef *') bridges to NSError, not 'id<P1,P2,P4>'}} \
111                           // expected-error {{cast of C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') to Objective-C pointer type 'id<P1,P2,P4>' 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 'CFErrorRef' (aka 'struct __CFErrorRef *') into ARC}}
114}
115
116void Test4(CFMyErrorRef cf) {
117   (void)(id)cf; // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') to Objective-C pointer type 'id' requires a bridged cast}} \
118			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
119			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') into ARC}}
120 (void)(id<P1, P2>)cf; // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') to Objective-C pointer type 'id<P1,P2>' requires a bridged cast}} \
121			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
122			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') into ARC}}
123 (void)(id<P1, P2, P3>)cf; // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') to Objective-C pointer type 'id<P1,P2,P3>' requires a bridged cast}} \
124			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
125			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') into ARC}}
126 (void)(id<P2, P3>)cf; // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') to Objective-C pointer type 'id<P2,P3>' requires a bridged cast}} \
127			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
128			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') into ARC}}
129 (void)(id<P1, P2, P4>)cf; // expected-warning {{'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') bridges to MyError, not 'id<P1,P2,P4>'}} \
130                           // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') to Objective-C pointer type 'id<P1,P2,P4>' requires a bridged cast}} \
131				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
132				// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') into ARC}}
133}
134
135void Test5(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
136 (void)(CFErrorRef)ID; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') requires a bridged cast}} \
137			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
138			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
139 (void)(CFErrorRef)P123; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3>' to C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') requires a bridged cast}} \
140			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
141			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
142 (void)(CFErrorRef)P1234; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3,P4>' to C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') requires a bridged cast}} \
143			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
144			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
145 (void)(CFErrorRef)P12; // expected-error {{cast of Objective-C pointer type 'id<P1,P2>' to C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') requires a bridged cast}} \
146			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
147			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
148 (void)(CFErrorRef)P23; // expected-error {{cast of Objective-C pointer type 'id<P2,P3>' to C pointer type 'CFErrorRef' (aka 'struct __CFErrorRef *') requires a bridged cast}} \
149			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
150			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
151}
152
153void Test6(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
154
155 (void)(CFMyErrorRef)ID; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') requires a bridged cast}} \
156				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
157				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *')}}
158 (void)(CFMyErrorRef)P123; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3>' to C pointer type 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') requires a bridged cast}} \
159				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
160				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *')}}
161 (void)(CFMyErrorRef)P1234; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3,P4>' to C pointer type 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') requires a bridged cast}} \
162				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
163				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *')}}
164 (void)(CFMyErrorRef)P12; // expected-error {{cast of Objective-C pointer type 'id<P1,P2>' to C pointer type 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') requires a bridged cast}} \
165				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
166				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *')}}
167 (void)(CFMyErrorRef)P23; // expected-error {{cast of Objective-C pointer type 'id<P2,P3>' to C pointer type 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') requires a bridged cast}} \
168				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
169				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *')}}
170}
171
172typedef struct __attribute__ ((objc_bridge(MyPersonalError))) __CFMyPersonalErrorRef * CFMyPersonalErrorRef;  // expected-note 1 {{declared here}}
173
174@interface MyPersonalError : NSError <P4> // expected-note 1 {{declared here}}
175@end
176
177void Test7(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
178 (void)(CFMyPersonalErrorRef)ID; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') requires a bridged cast}} \
179				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
180				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *')}}
181 (void)(CFMyPersonalErrorRef)P123; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3>' to C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') requires a bridged cast}} \
182				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
183				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *')}}
184 (void)(CFMyPersonalErrorRef)P1234; // expected-error {{cast of Objective-C pointer type 'id<P1,P2,P3,P4>' to C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') requires a bridged cast}} \
185				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
186				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *')}}
187 (void)(CFMyPersonalErrorRef)P12; // expected-error {{cast of Objective-C pointer type 'id<P1,P2>' to C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') requires a bridged cast}} \
188				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
189				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *')}}
190 (void)(CFMyPersonalErrorRef)P23; // expected-error {{cast of Objective-C pointer type 'id<P2,P3>' to C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') requires a bridged cast}} \
191				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
192				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *')}}
193}
194
195void Test8(CFMyPersonalErrorRef cf) {
196  (void)(id)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') to Objective-C pointer type 'id' requires a bridged cast}} \
197		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
198		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') into ARC}}
199  (void)(id<P1>)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') to Objective-C pointer type 'id<P1>' requires a bridged cast}} \
200		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
201		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') into ARC}}
202  (void)(id<P1, P2>)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') to Objective-C pointer type 'id<P1,P2>' requires a bridged cast}} \
203		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
204		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') into ARC}}
205  (void)(id<P1, P2, P3>)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') to Objective-C pointer type 'id<P1,P2,P3>' requires a bridged cast}} \
206		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
207		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') into ARC}}
208  (void)(id<P1, P2, P3, P4>)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') to Objective-C pointer type 'id<P1,P2,P3,P4>' requires a bridged cast}} \
209		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
210		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') into ARC}}
211  (void)(id<P1, P2, P3, P4, P5>)cf; // expected-warning {{'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') bridges to MyPersonalError, not 'id<P1,P2,P3,P4,P5>'}} \
212                                    // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') to Objective-C pointer type 'id<P1,P2,P3,P4,P5>' requires a bridged cast}} \
213		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
214		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') into ARC}}
215}
216
217void Test9(CFErrorRef2 cf, NSError *ns, NSString *str, Class c, CFUColor2Ref cf2) {
218  (void)(__bridge NSString *)cf; // expected-warning {{'CFErrorRef2' (aka 'struct __CFErrorRef *') bridges to NSError, not 'NSString'}}
219  (void)(__bridge NSError *)cf; // okay
220  (void)(__bridge MyError*)cf; // expected-warning {{'CFErrorRef2' (aka 'struct __CFErrorRef *') bridges to NSError, not 'MyError'}}
221  (void)(__bridge NSUColor *)cf2; // okay
222  (void)(__bridge CFErrorRef)ns; // okay
223  (void)(__bridge CFErrorRef)str;  // expected-warning {{'NSString' cannot bridge to 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
224  (void)(__bridge Class)cf; // expected-warning {{'CFErrorRef2' (aka 'struct __CFErrorRef *') bridges to NSError, not 'Class'}}
225  (void)(__bridge CFErrorRef)c; // expected-warning {{'__unsafe_unretained Class' cannot bridge to 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
226}
227
228// rdar://19157264
229#if __has_feature(objc_bridge_id)
230typedef struct __attribute__((objc_bridge(id))) __CFFoo *CFFooRef;
231#endif
232
233id convert(CFFooRef obj) {
234  (void)(NSError *)obj; // expected-error {{cast of C pointer type 'CFFooRef' (aka 'struct __CFFoo *') to Objective-C pointer type 'NSError *' requires a bridged cast}} \
235                        // expected-note {{use __bridge to convert directly (no change in ownership)}} \
236                        // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFFooRef' (aka 'struct __CFFoo *') into ARC}}
237  (void) (__bridge NSError *)obj;
238  (void) (id)obj;       // expected-error {{cast of C pointer type 'CFFooRef' (aka 'struct __CFFoo *') to Objective-C pointer type 'id' requires a bridged cast}} \
239                        // expected-note {{use __bridge to convert directly (no change in ownership)}} \
240                        // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFFooRef' (aka 'struct __CFFoo *') into ARC}}
241  return (__bridge id)obj;
242}
243