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// 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 *')}}
}
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