| 1 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
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| 2 | |
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| 3 | // C++11 [class.mem]p2: |
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| 4 | // A class is considered a completely-defined object type (or |
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| 5 | // complete type) at the closing } of the class-specifier. Within |
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| 6 | // the class member-specification, the class is regarded as complete |
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| 7 | // within function bodies, default arguments, |
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| 8 | // exception-specifications, and brace-or-equal-initializers for |
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| 9 | // non-static data members (including such things in nested classes). |
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| 10 | // Otherwise it is regarded as incomplete within its own class |
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| 11 | // member-specification. |
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| 12 | |
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| 13 | namespace test0 { |
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| 14 | struct A { // expected-note {{definition of 'test0::A' is not complete until the closing '}'}} |
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| 15 | A x; // expected-error {{field has incomplete type 'test0::A'}} |
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| 16 | }; |
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| 17 | } |
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| 18 | |
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| 19 | namespace test1 { |
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| 20 | template <class T> struct A { |
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| 21 | A<int> x; // expected-error {{implicit instantiation of template 'test1::A<int>' within its own definition}} |
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| 22 | }; |
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| 23 | } |
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| 24 | |
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| 25 | namespace test2 { |
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| 26 | template <class T> struct A; |
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| 27 | template <> struct A<int> {}; |
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| 28 | template <class T> struct A { |
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| 29 | A<int> x; |
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| 30 | }; |
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| 31 | } |
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| 32 | |
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| 33 | namespace test3 { |
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| 34 | struct A { |
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| 35 | struct B { |
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| 36 | void f() throw(A); |
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| 37 | void g() throw(B); |
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| 38 | }; |
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| 39 | |
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| 40 | void f() throw(A); |
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| 41 | void g() throw(B); |
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| 42 | }; |
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| 43 | |
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| 44 | template<typename T> |
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| 45 | struct A2 { |
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| 46 | struct B { |
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| 47 | void f1() throw(A2); |
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| 48 | void f2() throw(A2<T>); |
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| 49 | void g() throw(B); |
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| 50 | }; |
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| 51 | |
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| 52 | void f1() throw(A2); |
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| 53 | void f2() throw(A2<T>); |
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| 54 | void g() throw(B); |
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| 55 | }; |
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| 56 | |
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| 57 | template struct A2<int>; |
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| 58 | } |
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| 59 | |
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| 60 | namespace PR12629 { |
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| 61 | struct S { |
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| 62 | static int (f)() throw(); |
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| 63 | static int ((((((g))))() throw(U))); |
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| 64 | int (*h)() noexcept(false); |
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| 65 | static int (&i)() noexcept(true); |
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| 66 | static int (*j)() throw(U); // expected-error {{unknown type name 'U'}} |
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| 67 | static int (k)() throw(U); |
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| 68 | |
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| 69 | struct U {}; |
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| 70 | }; |
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| 71 | static_assert(noexcept(S::f()), ""); |
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| 72 | static_assert(!noexcept(S::g()), ""); |
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| 73 | static_assert(!noexcept(S().h()), ""); |
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| 74 | static_assert(noexcept(S::i()), ""); |
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| 75 | } |
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| 76 | |
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| 77 | namespace PR12688 { |
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| 78 | struct S { |
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| 79 | // FIXME: Maybe suppress the "constructor cannot have a return type" error |
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| 80 | // if the return type is invalid. |
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| 81 | nonsense S() throw (more_nonsense); // \ |
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| 82 | // expected-error {{'nonsense'}} \ |
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| 83 | // expected-error {{constructor cannot have a return type}} |
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| 84 | }; |
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| 85 | } |
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| 86 | |
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