| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
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| 2 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s |
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| 3 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
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| 4 | |
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| 5 | namespace A { |
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| 6 | class A { |
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| 7 | friend void func(A); |
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| 8 | friend A operator+(A,A); |
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| 9 | }; |
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| 10 | } |
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| 11 | |
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| 12 | namespace B { |
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| 13 | class B { |
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| 14 | static void func(B); |
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| 15 | }; |
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| 16 | B operator+(B,B); |
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| 17 | } |
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| 18 | |
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| 19 | namespace D { |
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| 20 | class D {}; |
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| 21 | } |
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| 22 | |
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| 23 | namespace C { |
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| 24 | class C {}; // expected-note {{candidate constructor (the implicit copy constructor) not viable: no known conversion from 'B::B' to 'const C::C &' for 1st argument}} |
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| 25 | #if __cplusplus >= 201103L // C++11 or later |
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| 26 | // expected-note@-2 {{candidate constructor (the implicit move constructor) not viable: no known conversion from 'B::B' to 'C::C &&' for 1st argument}} |
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| 27 | #endif |
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| 28 | void func(C); // expected-note {{'C::func' declared here}} \ |
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| 29 | // expected-note {{passing argument to parameter here}} |
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| 30 | C operator+(C,C); |
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| 31 | D::D operator+(D::D,D::D); |
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| 32 | } |
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| 33 | |
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| 34 | namespace D { |
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| 35 | using namespace C; |
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| 36 | } |
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| 37 | |
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| 38 | namespace Test { |
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| 39 | void test() { |
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| 40 | func(A::A()); |
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| 41 | // FIXME: namespace-aware typo correction causes an extra, misleading |
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| 42 | // message in this case; some form of backtracking, diagnostic message |
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| 43 | // delaying, or argument checking before emitting diagnostics is needed to |
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| 44 | // avoid accepting and printing out a typo correction that proves to be |
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| 45 | // incorrect once argument-dependent lookup resolution has occurred. |
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| 46 | func(B::B()); // expected-error {{use of undeclared identifier 'func'; did you mean 'C::func'?}} \ |
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| 47 | // expected-error {{no viable conversion from 'B::B' to 'C::C'}} |
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| 48 | func(C::C()); |
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| 49 | A::A() + A::A(); |
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| 50 | B::B() + B::B(); |
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| 51 | C::C() + C::C(); |
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| 52 | D::D() + D::D(); // expected-error {{invalid operands to binary expression ('D::D' and 'D::D')}} |
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| 53 | } |
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| 54 | } |
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| 55 | |
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| 56 | // PR6716 |
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| 57 | namespace test1 { |
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| 58 | template <class T> class A { |
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| 59 | template <class U> friend void foo(A &, U); // expected-note {{not viable: 1st argument ('const A<int>') would lose const qualifier}} |
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| 60 | |
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| 61 | public: |
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| 62 | A(); |
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| 63 | }; |
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| 64 | |
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| 65 | void test() { |
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| 66 | const A<int> a; |
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| 67 | foo(a, 10); // expected-error {{no matching function for call to 'foo'}} |
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| 68 | } |
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| 69 | } |
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| 70 | |
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