| 1 | // RUN: %clang_cc1 -fblocks -fobjc-arc -Wnullable-to-nonnull-conversion -fsyntax-only -verify -Wno-objc-root-class %s |
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| 2 | // RUN: %clang_cc1 -fblocks -fobjc-arc -Wnullable-to-nonnull-conversion -fsyntax-only -verify -Wno-objc-root-class -DNOWARN %s |
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| 3 | |
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| 4 | @interface NSString |
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| 5 | |
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| 6 | + (NSString* |
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| 7 | #ifndef NOWARN |
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| 8 | _Nullable |
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| 9 | #else |
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| 10 | _Nonnull |
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| 11 | #endif |
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| 12 | ) stringWithUTF8String:(const char*)x; |
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| 13 | |
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| 14 | @end |
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| 15 | |
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| 16 | void takesNonNull(NSString * _Nonnull ptr); |
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| 17 | |
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| 18 | void testBoxedString() { |
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| 19 | // No diagnostic emitted as this doesn't need a stringWithUTF8String message |
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| 20 | // send. |
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| 21 | takesNonNull(@("hey")); |
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| 22 | takesNonNull(@(u8"hey")); |
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| 23 | |
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| 24 | // If the string isn't a valid UTF-8 string, a diagnostic is emitted since the |
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| 25 | // boxed expression turns into a message send. |
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| 26 | takesNonNull(@(u8"\xFF")); // expected-warning {{string is ill-formed as UTF-8}} |
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| 27 | takesNonNull(@(u8"\xC0\x80")); // expected-warning {{string is ill-formed as UTF-8}} |
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| 28 | |
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| 29 | const char *str = "hey"; |
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| 30 | takesNonNull([NSString stringWithUTF8String:str]); |
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| 31 | takesNonNull(@(str)); |
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| 32 | #ifndef NOWARN |
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| 33 | // expected-warning@-7 {{implicit conversion from nullable pointer 'NSString * _Nullable' to non-nullable pointer type 'NSString * _Nonnull'}} |
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| 34 | // expected-warning@-7 {{implicit conversion from nullable pointer 'NSString * _Nullable' to non-nullable pointer type 'NSString * _Nonnull'}} |
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| 35 | // expected-warning@-5 {{implicit conversion from nullable pointer 'NSString * _Nullable' to non-nullable pointer type 'NSString * _Nonnull'}} |
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| 36 | // expected-warning@-5 {{implicit conversion from nullable pointer 'NSString * _Nullable' to non-nullable pointer type 'NSString * _Nonnull'}} |
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| 37 | #endif |
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| 38 | } |
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| 39 | |
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