p2.cpp revision 2b2a0876c9d3a92c5216a578373817974fe159a0 
1// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
2
3// C++11 [class.mem]p2:
4//   A class is considered a completely-defined object type (or
5//   complete type) at the closing } of the class-specifier. Within
6//   the class member-specification, the class is regarded as complete
7//   within function bodies, default arguments,
8//   exception-specifications, and brace-or-equal-initializers for
9//   non-static data members (including such things in nested classes).
10//   Otherwise it is regarded as incomplete within its own class
11//   member-specification.
12
13namespace test0 {
14  struct A { // expected-note {{definition of 'test0::A' is not complete until the closing '}'}}
15    A x; // expected-error {{field has incomplete type 'test0::A'}}
16  };
17}
18
19namespace test1 {
20  template <class T> struct A {
21    A<int> x; // expected-error {{implicit instantiation of template 'test1::A<int>' within its own definition}}
22  };
23}
24
25namespace test2 {
26  template <class T> struct A;
27  template <> struct A<int> {};
28  template <class T> struct A {
29    A<int> x;
30  };
31}
32
33namespace test3 {
34  struct A {
35    struct B {
36      void f() throw(A);
37      void g() throw(B);
38    };
39
40    void f() throw(A);
41    void g() throw(B);
42  };
43
44  template<typename T>
45  struct A2 {
46    struct B {
47      void f1() throw(A2);
48      void f2() throw(A2<T>);
49      void g() throw(B);
50    };
51
52    void f1() throw(A2);
53    void f2() throw(A2<T>);
54    void g() throw(B);
55  };
56
57  template struct A2<int>;
58}
59
60namespace PR12629 {
61  struct S {
62    static int (f)() throw();
63    static int ((((((g))))() throw(U)));
64    int (*h)() noexcept(false);
65    static int (&i)() noexcept(true);
66    static int (*j)() throw(U); // expected-error {{type name}} \
67    // expected-error {{expected ')'}} expected-note {{to match}}
68
69    struct U {};
70  };
71  static_assert(noexcept(S::f()), "");
72  static_assert(!noexcept(S::g()), "");
73  static_assert(!noexcept(S().h()), "");
74  static_assert(noexcept(S::i()), "");
75}
76