| 1 | // RUN: %clang_cc1 -arcmt-check -verify -triple x86_64-apple-darwin10 %s |
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| 2 | |
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| 3 | #include "Common.h" |
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| 4 | |
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| 5 | typedef const struct __CFString * CFStringRef; |
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| 6 | typedef const void * CFTypeRef; |
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| 7 | CFTypeRef CFBridgingRetain(id X); |
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| 8 | id CFBridgingRelease(CFTypeRef); |
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| 9 | |
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| 10 | struct StrS { |
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| 11 | CFStringRef sref_member; |
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| 12 | }; |
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| 13 | |
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| 14 | @interface NSString : NSObject { |
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| 15 | CFStringRef sref; |
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| 16 | struct StrS *strS; |
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| 17 | } |
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| 18 | -(id)string; |
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| 19 | -(id)newString; |
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| 20 | @end |
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| 21 | |
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| 22 | @implementation NSString |
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| 23 | -(id)string { |
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| 24 | if (0) |
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| 25 | return sref; |
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| 26 | else |
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| 27 | return strS->sref_member; |
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| 28 | } |
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| 29 | -(id)newString { |
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| 30 | 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}} \ |
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| 31 | // expected-note{{use __bridge to convert directly (no change in ownership)}} \ |
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| 32 | // expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'CFStringRef' (aka 'const struct __CFString *') into ARC}} |
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| 33 | } |
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| 34 | @end |
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| 35 | |
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| 36 | void f(BOOL b) { |
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| 37 | CFStringRef cfstr; |
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| 38 | 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}} \ |
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| 39 | // expected-note{{use __bridge to convert directly (no change in ownership)}} \ |
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| 40 | // expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'CFStringRef' (aka 'const struct __CFString *') into ARC}} |
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| 41 | void *vp = str; // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRetain call}} expected-note {{use __bridge}} |
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| 42 | } |
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| 43 | |
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| 44 | void f2(NSString *s) { |
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| 45 | CFStringRef ref; |
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| 46 | 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}} \ |
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| 47 | // expected-error {{bad receiver type 'CFStringRef' (aka 'const struct __CFString *')}} \ |
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| 48 | // expected-note{{use __bridge to convert directly (no change in ownership)}} \ |
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| 49 | // expected-note{{use CFBridgingRetain call to make an ARC object available as a +1 'CFStringRef' (aka 'const struct __CFString *')}} |
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| 50 | } |
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| 51 | |
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| 52 | CFStringRef f3() { |
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| 53 | 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}} \ |
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| 54 | // expected-note {{remove the cast and change return type of function to 'NSString *' to have the object automatically autoreleased}} |
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| 55 | } |
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| 56 | |
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| 57 | extern void NSLog(NSString *format, ...); |
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| 58 | |
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| 59 | // rdar://13192395 |
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| 60 | void f4(NSString *s) { |
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| 61 | 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}} \ |
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| 62 | // expected-note{{use __bridge to convert directly (no change in ownership)}} \ |
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| 63 | // expected-note{{use CFBridgingRetain call to make an ARC object available as a +1 'CFStringRef' (aka 'const struct __CFString *')}} |
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| 64 | } |
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| 65 | |
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