1 // RUN: %clang_cc1 -arcmt-check -verify -triple x86_64-apple-darwin10 %s 2 // DISABLE: mingw32 3 4 #include "Common.h" 5 6 typedef const struct __CFString * CFStringRef; 7 typedef const void * CFTypeRef; 8 CFTypeRef CFBridgingRetain(id X); 9 id CFBridgingRelease(CFTypeRef); 10 11 struct StrS { 12 CFStringRef sref_member; 13 }; 14 15 @interface NSString : NSObject { 16 CFStringRef sref; 17 struct StrS *strS; 18 } 19 -(id)string; 20 -(id)newString; 21 @end 22 23 @implementation NSString 24 -(id)string { 25 if (0) 26 return sref; 27 else 28 return strS->sref_member; 29 } 30 -(id)newString { 31 return sref; // expected-error {{implicit conversion of C pointer type 'CFStringRef' (aka 'const struct __CFString *') to Objective-C pointer type 'id' requires a bridged cast}} \ 32 // expected-note{{use __bridge to convert directly (no change in ownership)}} \ 33 // expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'CFStringRef' (aka 'const struct __CFString *') into ARC}} 34 } 35 @end 36 37 void f(BOOL b) { 38 CFStringRef cfstr; 39 NSString *str = (NSString *)cfstr; // expected-error {{cast of C pointer type 'CFStringRef' (aka 'const struct __CFString *') to Objective-C pointer type 'NSString *' requires a bridged cast}} \ 40 // expected-note{{use __bridge to convert directly (no change in ownership)}} \ 41 // expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'CFStringRef' (aka 'const struct __CFString *') into ARC}} 42 void *vp = str; // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRetain call}} expected-note {{use __bridge}} 43 } 44 45 void f2(NSString *s) { 46 CFStringRef ref; 47 ref = [(CFStringRef)[s string] retain]; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef' (aka 'const struct __CFString *') requires a bridged cast}} \ 48 // expected-error {{bad receiver type 'CFStringRef' (aka 'const struct __CFString *')}} \ 49 // expected-note{{use __bridge to convert directly (no change in ownership)}} \ 50 // expected-note{{use CFBridgingRetain call to make an ARC object available as a +1 'CFStringRef' (aka 'const struct __CFString *')}} 51 } 52 53 CFStringRef f3() { 54 return (CFStringRef)[[[NSString alloc] init] autorelease]; // expected-error {{it is not safe to cast to 'CFStringRef' the result of 'autorelease' message; a __bridge cast may result in a pointer to a destroyed object and a __bridge_retained may leak the object}} \ 55 // expected-note {{remove the cast and change return type of function to 'NSString *' to have the object automatically autoreleased}} 56 } 57 58 extern void NSLog(NSString *format, ...); 59 60 // rdar://13192395 61 void f4(NSString *s) { 62 NSLog(@"%@", (CFStringRef)s); // expected-error {{cast of Objective-C pointer type 'NSString *' to C pointer type 'CFStringRef' (aka 'const struct __CFString *') requires a bridged cast}} \ 63 // expected-note{{use __bridge to convert directly (no change in ownership)}} \ 64 // expected-note{{use CFBridgingRetain call to make an ARC object available as a +1 'CFStringRef' (aka 'const struct __CFString *')}} 65 } 66
