diff options
Diffstat (limited to 'clang/test/ARCMT/nonobjc-to-objc-cast-2.m')
-rw-r--r-- | clang/test/ARCMT/nonobjc-to-objc-cast-2.m | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/clang/test/ARCMT/nonobjc-to-objc-cast-2.m b/clang/test/ARCMT/nonobjc-to-objc-cast-2.m new file mode 100644 index 0000000..1ec0089 --- /dev/null +++ b/clang/test/ARCMT/nonobjc-to-objc-cast-2.m @@ -0,0 +1,35 @@ +// RUN: %clang_cc1 -arcmt-check -verify -triple x86_64-apple-darwin10 %s +// DISABLE: mingw32 + +#include "Common.h" + +@interface NSString : NSObject +-(id)string; +-(id)newString; +@end + +typedef const struct __CFString * CFStringRef; +typedef const void * CFTypeRef; +CFTypeRef CFBridgingRetain(id X); +id CFBridgingRelease(CFTypeRef); + +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}} +} |