1 // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fblocks -verify %s 2 // rdar://10597832 3 4 typedef const void *CFTypeRef; 5 typedef const struct __CFString *CFStringRef; 6 7 @interface NSString 8 @end 9 10 CFTypeRef CFCreateSomething(); 11 CFStringRef CFCreateString(); 12 CFTypeRef CFGetSomething(); 13 CFStringRef CFGetString(); 14 15 id CreateSomething(); 16 NSString *CreateNSString(); 17 18 void from_cf() { 19 id obj1 = (__bridge_transfer id)CFCreateSomething(); // expected-warning {{'__bridge_transfer' casts have no effect when not using ARC}} 20 id obj2 = (__bridge_transfer NSString*)CFCreateString(); // expected-warning {{'__bridge_transfer' casts have no effect when not using ARC}} 21 (__bridge int*)CFCreateSomething(); // expected-warning {{'__bridge' casts have no effect when not using ARC}} \ 22 // expected-warning {{expression result unused}} 23 id obj3 = (__bridge id)CFGetSomething(); // expected-warning {{'__bridge' casts have no effect when not using ARC}} 24 id obj4 = (__bridge NSString*)CFGetString(); // expected-warning {{'__bridge' casts have no effect when not using ARC}} 25 } 26 27 void to_cf(id obj) { 28 CFTypeRef cf1 = (__bridge_retained CFTypeRef)CreateSomething(); // expected-warning {{'__bridge_retained' casts have no effect when not using ARC}} 29 CFStringRef cf2 = (__bridge_retained CFStringRef)CreateNSString(); // expected-warning {{'__bridge_retained' casts have no effect when not using ARC}} 30 CFTypeRef cf3 = (__bridge CFTypeRef)CreateSomething(); // expected-warning {{'__bridge' casts have no effect when not using ARC}} 31 CFStringRef cf4 = (__bridge CFStringRef)CreateNSString(); // expected-warning {{'__bridge' casts have no effect when not using ARC}} 32 } 33 34 void fixits() { 35 id obj1 = (id)CFCreateSomething(); 36 CFTypeRef cf1 = (CFTypeRef)CreateSomething(); 37 } 38 39 #pragma clang diagnostic ignored "-Warc-bridge-casts-disallowed-in-nonarc" 40 41 void to_cf_ignored(id obj) { 42 CFTypeRef cf1 = (__bridge_retained CFTypeRef)CreateSomething(); // no-warning 43 CFTypeRef cf3 = (__bridge CFTypeRef)CreateSomething(); // no-warning 44 } 45
