forked from OSchip/llvm-project
65 lines
3.0 KiB
Objective-C
65 lines
3.0 KiB
Objective-C
// RUN: %clang_cc1 -arcmt-action=check -verify -triple x86_64-apple-darwin10 %s
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#include "Common.h"
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typedef const struct __CFString * CFStringRef;
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typedef const void * CFTypeRef;
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CFTypeRef CFBridgingRetain(id X);
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id CFBridgingRelease(CFTypeRef);
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struct StrS {
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CFStringRef sref_member;
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};
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@interface NSString : NSObject {
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CFStringRef sref;
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struct StrS *strS;
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}
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-(id)string;
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-(id)newString;
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@end
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@implementation NSString
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-(id)string {
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if (0)
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return sref;
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else
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return strS->sref_member;
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}
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-(id)newString {
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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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// expected-note{{use __bridge to convert directly (no change in ownership)}} \
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// expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'CFStringRef' (aka 'const struct __CFString *') into ARC}}
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}
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@end
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void f(BOOL b) {
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CFStringRef cfstr;
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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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// expected-note{{use __bridge to convert directly (no change in ownership)}} \
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// expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'CFStringRef' (aka 'const struct __CFString *') into ARC}}
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void *vp = str; // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRetain call}} expected-note {{use __bridge}}
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}
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void f2(NSString *s) {
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CFStringRef ref;
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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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// expected-error {{bad receiver type 'CFStringRef' (aka 'const struct __CFString *')}} \
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// expected-note{{use __bridge to convert directly (no change in ownership)}} \
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// expected-note{{use CFBridgingRetain call to make an ARC object available as a +1 'CFStringRef' (aka 'const struct __CFString *')}}
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}
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CFStringRef f3() {
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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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// expected-note {{remove the cast and change return type of function to 'NSString *' to have the object automatically autoreleased}}
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}
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extern void NSLog(NSString *format, ...);
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// rdar://13192395
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void f4(NSString *s) {
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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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// expected-note{{use __bridge to convert directly (no change in ownership)}} \
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// expected-note{{use CFBridgingRetain call to make an ARC object available as a +1 'CFStringRef' (aka 'const struct __CFString *')}}
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}
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