45 lines
2.0 KiB
Mathematica
45 lines
2.0 KiB
Mathematica
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// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fobjc-arc -fblocks -verify %s
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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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typedef const struct __CFString *CFStringRef;
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@interface NSString
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@end
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CFTypeRef CFCreateSomething();
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CFStringRef CFCreateString();
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CFTypeRef CFGetSomething();
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CFStringRef CFGetString();
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id CreateSomething();
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NSString *CreateNSString();
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void from_cf() {
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id obj1 = (__bridge_transfer id)CFCreateSomething();
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id obj2 = (__bridge_transfer NSString*)CFCreateString();
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(__bridge int*)CFCreateSomething(); // expected-error{{incompatible types casting 'CFTypeRef' (aka 'const void *') to 'int *' with a __bridge cast}}
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id obj3 = (__bridge id)CFGetSomething();
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id obj4 = (__bridge NSString*)CFGetString();
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}
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void to_cf(id obj) {
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CFTypeRef cf1 = (__bridge_retained CFTypeRef)CreateSomething();
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CFStringRef cf2 = (__bridge_retained CFStringRef)CreateNSString();
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CFTypeRef cf3 = (__bridge CFTypeRef)CreateSomething();
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CFStringRef cf4 = (__bridge CFStringRef)CreateNSString();
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// rdar://problem/9629566 - temporary workaround
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CFTypeRef cf5 = (__bridge_retain CFTypeRef)CreateSomething(); // expected-error {{unknown cast annotation __bridge_retain; did you mean __bridge_retained?}}
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}
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void fixits() {
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id obj1 = (id)CFCreateSomething(); // expected-error{{cast of C pointer type 'CFTypeRef' (aka 'const void *') 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 'CFTypeRef' (aka 'const void *') into ARC}}
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CFTypeRef cf1 = (CFTypeRef)CreateSomething(); // expected-error{{cast of Objective-C pointer type 'id' to C pointer type 'CFTypeRef' (aka 'const void *') 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 'CFTypeRef' (aka 'const void *')}}
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}
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