clang/test/SemaCXX/nullability_redecl.cpp

   1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -Wno-nullability-declspec %s -verify -Wnullable-to-nonnull-conversion -I%S/Inputs
   2
   3 class Foo;
   4 using Foo1 = Foo _Nonnull; // expected-error{{nullability specifier '_Nonnull' cannot be applied to non-pointer type 'Foo'}}
   5 class _Nullable Foo;
   6 using Foo2 = Foo _Nonnull;
   7 class Foo;
   8 using Foo3 = Foo _Nonnull;
   9
  10 template <class T>
  11 class Bar;
  12 using Bar1 = Bar<int> _Nonnull; // expected-error{{nullability specifier '_Nonnull' cannot be applied to non-pointer type 'Bar<int>'}}
  13 template <class T>
  14 class _Nullable Bar;
  15 using Bar2 = Bar<int> _Nonnull;
  16 template <class T>
  17 class Bar;
  18 using Bar3 = Bar<int> _Nonnull;
  19
  20 namespace std {
  21   template<class T> class unique_ptr;
  22   using UP1 = unique_ptr<int> _Nonnull;
  23   class X { template<class T> friend class unique_ptr; };
  24   using UP2 = unique_ptr<int> _Nonnull;
  25   template<class T> class unique_ptr;
  26   using UP3 = unique_ptr<int> _Nonnull;
  27 }