• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1// RUN: %clang_cc1 -arcmt-check -verify -triple x86_64-apple-darwin10 %s
2// DISABLE: mingw32
3
4#include "Common.h"
5
6@interface NSString : NSObject
7-(id)string;
8-(id)newString;
9@end
10
11typedef const struct __CFString * CFStringRef;
12typedef const void * CFTypeRef;
13CFTypeRef CFBridgingRetain(id X);
14id CFBridgingRelease(CFTypeRef);
15
16void f(BOOL b) {
17  CFStringRef cfstr;
18  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}} \
19    // expected-note{{use __bridge to convert directly (no change in ownership)}} \
20    // expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'CFStringRef' (aka 'const struct __CFString *') into ARC}}
21  void *vp = str;  // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRetain call}} expected-note {{use __bridge}}
22}
23
24void f2(NSString *s) {
25  CFStringRef ref;
26  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}} \
27    // expected-error {{bad receiver type 'CFStringRef' (aka 'const struct __CFString *')}} \
28    // expected-note{{use __bridge to convert directly (no change in ownership)}} \
29    // expected-note{{use CFBridgingRetain call to make an ARC object available as a +1 'CFStringRef' (aka 'const struct __CFString *')}}
30}
31
32CFStringRef f3() {
33  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}} \
34    // expected-note {{remove the cast and change return type of function to 'NSString *' to have the object automatically autoreleased}}
35}
36