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  (void)(NSUColor *)cf2; // expected-error {{cast of C pointer type 'CFUColor2Ref' (aka '__CFUPrimeColor *') to Objective-C pointer type 'NSUColor *' requires a bridged cast}} \
67                         // expected-note {{use __bridge to convert directly (no change in ownership)}} \
68                         // expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFUColor2Ref' (aka '__CFUPrimeColor *') into ARC}}
69  (void)(CFErrorRef)ns; // expected-error {{cast of Objective-C pointer type 'NSError *' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
70                        // expected-note {{use __bridge to convert directly (no change in ownership)}} \
71 			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
72  (void)(CFErrorRef)str;  // expected-warning {{'NSString' cannot bridge to 'CFErrorRef' (aka '__CFErrorRef *')}} \\
73                          // expected-error {{cast of Objective-C pointer type 'NSString *' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
74                        // expected-note {{use __bridge to convert directly (no change in ownership)}} \
75 			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
76  (void)(Class)cf; // expected-warning {{'CFErrorRef2' (aka '__CFErrorRef *') bridges to NSError, not 'Class'}} \\
77                   // expected-error {{cast of C pointer type 'CFErrorRef2' (aka '__CFErrorRef *') to Objective-C pointer type 'Class' requires a bridged cast}} \
78 			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
79			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef2' (aka '__CFErrorRef *') into ARC}}
80  (void)(CFErrorRef)c; // expected-warning {{'__unsafe_unretained Class' cannot bridge to 'CFErrorRef' (aka '__CFErrorRef *}} \\
81                       // expected-error {{cast of Objective-C pointer type 'Class' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
82			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
83			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
84}
85
86
87void Test3(CFErrorRef cf, NSError *ns) {
88  (void)(id)cf; // expected-error {{cast of C pointer type 'CFErrorRef' (aka '__CFErrorRef *') to Objective-C pointer type 'id' requires a bridged cast}} \
89		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
90		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef' (aka '__CFErrorRef *') into ARC}}
91 (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}} \
92		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
93		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef' (aka '__CFErrorRef *') into ARC}}
94 (void)(id<P1, P2, P4>)cf; // expected-warning {{'CFErrorRef' (aka '__CFErrorRef *') bridges to NSError, not 'id<P1,P2,P4>'}} \
95                           // expected-error {{cast of C pointer type 'CFErrorRef' (aka '__CFErrorRef *') to Objective-C pointer type 'id<P1,P2,P4>' requires a bridged cast}} \
96		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
97		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFErrorRef' (aka '__CFErrorRef *') into ARC}}
98}
99
100void Test4(CFMyErrorRef cf) {
101   (void)(id)cf; // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') to Objective-C pointer type 'id' requires a bridged cast}} \
102			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
103			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *') into ARC}}
104 (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}} \
105			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
106			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *') into ARC}}
107 (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}} \
108			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
109			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *') into ARC}}
110 (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}} \
111			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
112			// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *') into ARC}}
113 (void)(id<P1, P2, P4>)cf; // expected-warning {{'CFMyErrorRef' (aka '__CFMyErrorRef *') bridges to MyError, not 'id<P1,P2,P4>'}} \
114                           // expected-error {{cast of C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') to Objective-C pointer type 'id<P1,P2,P4>' requires a bridged cast}} \
115				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
116				// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *') into ARC}}
117}
118
119void Test5(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
120 (void)(CFErrorRef)ID; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFErrorRef' (aka '__CFErrorRef *') requires a bridged cast}} \
121			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
122			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
123 (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}} \
124			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
125			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
126 (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}} \
127			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
128			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
129 (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}} \
130			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
131			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
132 (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}} \
133			// expected-note {{use __bridge to convert directly (no change in ownership)}} \
134			// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFErrorRef' (aka '__CFErrorRef *')}}
135}
136
137void Test6(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
138
139 (void)(CFMyErrorRef)ID; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFMyErrorRef' (aka '__CFMyErrorRef *') 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 'CFMyErrorRef' (aka '__CFMyErrorRef *')}}
142 (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}} \
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 'CFMyErrorRef' (aka '__CFMyErrorRef *')}}
145 (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}} \
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 'CFMyErrorRef' (aka '__CFMyErrorRef *')}}
148 (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}} \
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 'CFMyErrorRef' (aka '__CFMyErrorRef *')}}
151 (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}} \
152				// expected-note {{use __bridge to convert directly (no change in ownership)}} \
153				// expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyErrorRef' (aka '__CFMyErrorRef *')}}
154}
155
156typedef struct __attribute__ ((objc_bridge(MyPersonalError))) __CFMyPersonalErrorRef * CFMyPersonalErrorRef;  // expected-note 1 {{declared here}}
157
158@interface MyPersonalError : NSError <P4> // expected-note 1 {{declared here}}
159@end
160
161void Test7(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
162 (void)(CFMyPersonalErrorRef)ID; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') requires a bridged cast}} \
163				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
164				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *')}}
165 (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}} \
166				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
167				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *')}}
168 (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}} \
169				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
170				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *')}}
171 (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}} \
172				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
173				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *')}}
174 (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}} \
175				 // expected-note {{use __bridge to convert directly (no change in ownership)}} \
176				 // expected-note {{use __bridge_retained to make an ARC object available as a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *')}}
177}
178
179void Test8(CFMyPersonalErrorRef cf) {
180  (void)(id)cf; // expected-error {{cast of C pointer type 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') to Objective-C pointer type 'id' requires a bridged cast}} \
181		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
182		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
183  (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}} \
184		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
185		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
186  (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}} \
187		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
188		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
189  (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}} \
190		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
191		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
192  (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}} \
193		// expected-note {{use __bridge to convert directly (no change in ownership)}} \
194		// expected-note {{use __bridge_transfer to transfer ownership of a +1 'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') into ARC}}
195  (void)(id<P1, P2, P3, P4, P5>)cf; // expected-warning {{'CFMyPersonalErrorRef' (aka '__CFMyPersonalErrorRef *') bridges to MyPersonalError, not 'id<P1,P2,P3,P4,P5>'}} \
196                                    // 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}} \
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 '__CFMyPersonalErrorRef *') into ARC}}
199}
200
201void Test9(CFErrorRef2 cf, NSError *ns, NSString *str, Class c, CFUColor2Ref cf2) {
202  (void)(__bridge NSString *)cf; // expected-warning {{'CFErrorRef2' (aka '__CFErrorRef *') bridges to NSError, not 'NSString'}}
203  (void)(__bridge NSError *)cf; // okay
204  (void)(__bridge MyError*)cf; // okay,
205  (void)(__bridge NSUColor *)cf2; // okay
206  (void)(__bridge CFErrorRef)ns; // okay
207  (void)(__bridge CFErrorRef)str;  // expected-warning {{'NSString' cannot bridge to 'CFErrorRef' (aka '__CFErrorRef *')}}
208  (void)(__bridge Class)cf; // expected-warning {{'CFErrorRef2' (aka '__CFErrorRef *') bridges to NSError, not 'Class'}}
209  (void)(__bridge CFErrorRef)c; // expected-warning {{'__unsafe_unretained Class' cannot bridge to 'CFErrorRef' (aka '__CFErrorRef *')}}
210}
211