clang/test/SemaCXX/PR28101.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++17 %s
   2
   3 template <typename T> struct A {
   4   A(void *) {}
   5   T(A<T>){}; // expected-error{{member 'A' cannot have template arguments}}\
   6   // expected-error2{{member 'A' has the same name as its class}}
   7 };
   8 // Don't crash.
   9 A<int> instantiate1() { return {nullptr}; } // expected-note{{in instantiation of template class 'A<int>' requested here}}
  10
  11 template <typename T> struct B {
  12   B(void *) {}
  13   T B<T>{}; // expected-error{{member 'B' cannot have template arguments}}\
  14   // expected-error2{{member 'B' has the same name as its class}}
  15 };
  16 // Don't crash.
  17 B<int> instantiate2() { return {nullptr}; } // expected-note{{in instantiation of template class 'B<int>' requested here}}
  18
  19 template <typename T> struct S {};
  20
  21 template <typename T> struct C {
  22   C(void *) {}
  23   T S<T>{}; // expected-error{{member 'S' cannot have template arguments}}
  24 };
  25 // Don't crash.
  26 C<int> instantiate3() { return {nullptr}; }
  27
  28 template <typename T, template <typename> typename U> class D {
  29 public:
  30   D(void *) {}
  31   T(D<T, U<T>>) {} // expected-error{{member 'D' cannot have template arguments}}\
  32   // expected-error{{expected ';' at end of declaration list}}\
  33   // expected-error2{{member 'D' has the same name as its class}}
  34 };
  35 // Don't crash.
  36 D<int, S> instantiate4() { return D<int, S>(nullptr); } // expected-note{{in instantiation of template class 'D<int, S>' requested here}}