1 // RUN: %clang_cc1 -fsyntax-only -x objective-c -fobjc-arc -verify -Wno-objc-root-class %s 2 // rdar://15454846 3 4 typedef struct __attribute__ ((objc_bridge(NSError))) __CFErrorRef * CFErrorRef; // expected-note 5 {{declared here}} 5 6 typedef struct __attribute__ ((objc_bridge(MyError))) __CFMyErrorRef * CFMyErrorRef; // expected-note 1 {{declared here}} 7 8 typedef 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 10 typedef struct __attribute__ ((objc_bridge)) __CFArray *CFArrayRef; // expected-error {{'objc_bridge' attribute takes one argument}} 11 12 typedef void * __attribute__ ((objc_bridge(NSURL))) CFURLRef; // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}} 13 14 typedef void * CFStringRef __attribute__ ((objc_bridge(NSString))); // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}} 15 16 typedef struct __attribute__((objc_bridge(NSLocale, NSError))) __CFLocale *CFLocaleRef;// expected-error {{use of undeclared identifier 'NSError'}} 17 18 typedef struct __CFData __attribute__((objc_bridge(NSData))) CFDataRef; // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}} 19 20 typedef struct __attribute__((objc_bridge(NSDictionary))) __CFDictionary * CFDictionaryRef; 21 22 typedef struct __CFSetRef * CFSetRef __attribute__((objc_bridge(NSSet))); // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}} 23 24 typedef union __CFUColor __attribute__((objc_bridge(NSUColor))) * CFUColorRef; // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}} 25 26 typedef union __CFUColor __attribute__((objc_bridge(NSUColor))) * CFUColorRef; // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}} 27 28 typedef union __CFUColor __attribute__((objc_bridge(NSUColor))) *CFUColor1Ref; // expected-error {{parameter of 'objc_bridge' attribute must be 'id' when used on a typedef}} 29 30 typedef union __attribute__((objc_bridge(NSUColor))) __CFUPrimeColor XXX; 31 typedef XXX *CFUColor2Ref; 32 33 @interface I 34 { 35 __attribute__((objc_bridge(NSError))) void * color; // expected-error {{'objc_bridge' attribute only applies to structs, unions, and typedefs}}; 36 } 37 @end 38 39 @protocol NSTesting @end 40 @class NSString; 41 42 typedef struct __attribute__((objc_bridge(NSTesting))) __CFError *CFTestingRef; // expected-note {{declared here}} 43 44 id 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 51 typedef CFErrorRef CFErrorRef1; 52 53 typedef 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 70 void 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 } 101 102 103 void 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 } 115 116 void 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 } 134 135 void 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 } 152 153 void 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 } 171 172 typedef 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 176 177 void 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 } 194 195 void 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 } 216 217 void 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) 230 typedef struct __attribute__((objc_bridge(id))) __CFFoo *CFFooRef; 231 #endif 232 233 id 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
