1 // RUN: %clang_cc1 -arcmt-check -verify -triple x86_64-apple-darwin10 %s 2 3 #include "Common.h" 4 5 @interface NSString : NSObject 6 -(id)string; 7 -(id)newString; 8 @end 9 10 typedef const struct __CFString * CFStringRef; 11 12 void f(BOOL b) { 13 CFStringRef cfstr; 14 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}} \ 15 // expected-note{{use __bridge to convert directly (no change in ownership)}} \ 16 // expected-note{{use __bridge_transfer to transfer ownership of a +1 'CFStringRef' (aka 'const struct __CFString *') into ARC}} 17 void *vp = str; // expected-error {{requires a bridged cast}} expected-note {{use __bridge}} expected-note {{use __bridge}} 18 } 19 20 void f2(NSString *s) { 21 CFStringRef ref; 22 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}} \ 23 // expected-error {{ bad receiver type 'CFStringRef' (aka 'const struct __CFString *')}} \ 24 // expected-note{{use __bridge to convert directly (no change in ownership)}} \ 25 // expected-note{{use __bridge_retained to make an ARC object available as a +1 'CFStringRef' (aka 'const struct __CFString *')}} 26 } 27 28 CFStringRef f3() { 29 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}} \ 30 // expected-note {{remove the cast and change return type of function to 'NSString *' to have the object automatically autoreleased}} 31 } 32
