clang/test/SemaCXX/attr-exclude_from_explicit_instantiation.explicit_instantiation.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 // Test that explicit instantiations do not instantiate entities
   4 // marked with the exclude_from_explicit_instantiation attribute.
   5
   6 #define EXCLUDE_FROM_EXPLICIT_INSTANTIATION __attribute__((exclude_from_explicit_instantiation))
   7
   8 template <class T>
   9 struct Foo {
  10   EXCLUDE_FROM_EXPLICIT_INSTANTIATION inline void non_static_member_function1();
  11
  12   EXCLUDE_FROM_EXPLICIT_INSTANTIATION void non_static_member_function2();
  13
  14   EXCLUDE_FROM_EXPLICIT_INSTANTIATION static inline void static_member_function1();
  15
  16   EXCLUDE_FROM_EXPLICIT_INSTANTIATION static void static_member_function2();
  17
  18   EXCLUDE_FROM_EXPLICIT_INSTANTIATION static int static_data_member;
  19
  20   struct EXCLUDE_FROM_EXPLICIT_INSTANTIATION member_class1 {
  21     static void non_static_member_function() { using Fail = typename T::fail; }
  22   };
  23
  24   struct member_class2 {
  25     EXCLUDE_FROM_EXPLICIT_INSTANTIATION static void non_static_member_function() { using Fail = typename T::fail; }
  26   };
  27 };
  28
  29 template <class T>
  30 inline void Foo<T>::non_static_member_function1() { using Fail = typename T::fail; }
  31
  32 template <class T>
  33 void Foo<T>::non_static_member_function2() { using Fail = typename T::fail; }
  34
  35 template <class T>
  36 inline void Foo<T>::static_member_function1() { using Fail = typename T::fail; }
  37
  38 template <class T>
  39 void Foo<T>::static_member_function2() { using Fail = typename T::fail; }
  40
  41 template <class T>
  42 int Foo<T>::static_data_member = T::fail;
  43
  44 // expected-no-diagnostics
  45 template struct Foo<int>;