| 1 | // RUN: %clang_cc1 -std=c++11 -fsyntax-only %s -verify |
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| 2 | |
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| 3 | @interface A |
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| 4 | - knownMethod; |
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| 5 | @end |
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| 6 | |
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| 7 | @interface B |
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| 8 | - unknownMethod; |
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| 9 | @end |
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| 10 | |
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| 11 | @interface C : A |
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| 12 | - knownMethod; |
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| 13 | @end |
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| 14 | |
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| 15 | template<typename T> struct RetainPtr { |
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| 16 | explicit operator T*() const; |
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| 17 | }; |
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| 18 | |
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| 19 | void methodCallToSpecific(RetainPtr<A> a) { |
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| 20 | [a knownMethod]; |
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| 21 | [a unknownMethod]; // expected-warning{{'A' may not respond to 'unknownMethod'}} |
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| 22 | } |
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| 23 | |
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| 24 | void explicitCast(RetainPtr<A> a, RetainPtr<B> b, RetainPtr<C> c) { |
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| 25 | (void)(A*)a; |
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| 26 | (void)(A*)b; // expected-error{{cannot convert 'RetainPtr<B>' to 'A *' without a conversion operator}} |
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| 27 | (void)(A*)c; |
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| 28 | (void)(C*)a; |
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| 29 | (void)static_cast<A*>(a); |
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| 30 | (void)static_cast<A*>(b); // expected-error{{cannot convert 'RetainPtr<B>' to 'A *' without a conversion operator}} |
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| 31 | (void)static_cast<A*>(c); |
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| 32 | } |
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| 33 | |
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| 34 | struct Incomplete; // expected-note{{forward declaration}} |
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| 35 | |
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| 36 | void methodCallToIncomplete(Incomplete &incomplete) { |
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| 37 | [incomplete knownMethod]; // expected-error{{incomplete receiver type 'Incomplete'}} |
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| 38 | } |
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| 39 | |
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| 40 | struct IdPtr { |
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| 41 | explicit operator id() const; |
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| 42 | }; |
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| 43 | |
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| 44 | void methodCallToId(IdPtr a) { |
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| 45 | [a knownMethod]; |
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| 46 | [a unknownMethod]; |
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| 47 | } |
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| 48 | |
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| 49 | void explicitCast(IdPtr a) { |
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| 50 | (void)(A*)a; |
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| 51 | (void)static_cast<A*>(a); |
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| 52 | } |
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| 53 | |
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