| // RUN: %clang_cc1 -arcmt-action=check -verify -triple x86_64-apple-darwin10 %s |
| |
| #include "Common.h" |
| |
| typedef const struct __CFString * CFStringRef; |
| typedef const void * CFTypeRef; |
| CFTypeRef CFBridgingRetain(id X); |
| id CFBridgingRelease(CFTypeRef); |
| |
| struct StrS { |
| CFStringRef sref_member; |
| }; |
| |
| @interface NSString : NSObject { |
| CFStringRef sref; |
| struct StrS *strS; |
| } |
| -(id)string; |
| -(id)newString; |
| @end |
| |
| @implementation NSString |
| -(id)string { |
| if (0) |
| return sref; |
| else |
| return strS->sref_member; |
| } |
| -(id)newString { |
| 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}} \ |
| // expected-note{{use __bridge to convert directly (no change in ownership)}} \ |
| // expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'CFStringRef' (aka 'const struct __CFString *') into ARC}} |
| } |
| @end |
| |
| void f(BOOL b) { |
| CFStringRef cfstr; |
| 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}} \ |
| // expected-note{{use __bridge to convert directly (no change in ownership)}} \ |
| // expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'CFStringRef' (aka 'const struct __CFString *') into ARC}} |
| void *vp = str; // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRetain call}} expected-note {{use __bridge}} |
| } |
| |
| void f2(NSString *s) { |
| CFStringRef ref; |
| 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}} \ |
| // expected-error {{bad receiver type 'CFStringRef' (aka 'const struct __CFString *')}} \ |
| // expected-note{{use __bridge to convert directly (no change in ownership)}} \ |
| // expected-note{{use CFBridgingRetain call to make an ARC object available as a +1 'CFStringRef' (aka 'const struct __CFString *')}} |
| } |
| |
| CFStringRef f3() { |
| 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}} \ |
| // expected-note {{remove the cast and change return type of function to 'NSString *' to have the object automatically autoreleased}} |
| } |
| |
| extern void NSLog(NSString *format, ...); |
| |
| // rdar://13192395 |
| void f4(NSString *s) { |
| 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}} \ |
| // expected-note{{use __bridge to convert directly (no change in ownership)}} \ |
| // expected-note{{use CFBridgingRetain call to make an ARC object available as a +1 'CFStringRef' (aka 'const struct __CFString *')}} |
| } |