| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
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| 2 | |
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| 3 | @interface NSObject @end |
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| 4 | @protocol XCElementP @end |
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| 5 | @protocol XCElementSpacerP <XCElementP> @end |
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| 6 | |
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| 7 | @protocol PWhatever @end |
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| 8 | |
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| 9 | @interface XX |
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| 10 | |
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| 11 | - (void)setFlexElement:(NSObject <PWhatever, XCElementP> *)flexer; |
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| 12 | - (void)setFlexElement2:(NSObject <PWhatever, XCElementSpacerP> *)flexer; // expected-note{{passing argument to parameter 'flexer' here}} |
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| 13 | |
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| 14 | @end |
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| 15 | |
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| 16 | void func() { |
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| 17 | NSObject <PWhatever, XCElementSpacerP> * flexer; |
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| 18 | NSObject <PWhatever, XCElementP> * flexer2; |
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| 19 | XX *obj; |
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| 20 | [obj setFlexElement:flexer]; |
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| 21 | // FIXME: GCC provides the following diagnostic (which is much better): |
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| 22 | // protocol-typecheck.m:21: warning: class 'NSObject <PWhatever, XCElementP>' does not implement the 'XCElementSpacerP' protocol |
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| 23 | [obj setFlexElement2:flexer2]; // expected-warning{{incompatible pointer types sending 'NSObject<PWhatever,XCElementP> *' to parameter of type 'NSObject<PWhatever,XCElementSpacerP> *'}} |
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| 24 | } |
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| 25 | |
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| 26 | |
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