1// RUN: %clang_cc1 -arcmt-check -verify -triple x86_64-apple-darwin10 %s 2// DISABLE: mingw32 3 4#include "Common.h" 5 6typedef const struct __CFString * CFStringRef; 7typedef const void * CFTypeRef; 8CFTypeRef CFBridgingRetain(id X); 9id CFBridgingRelease(CFTypeRef); 10 11struct 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 37void 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 45void 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 53CFStringRef 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