clang/test/SemaCXX/ms-iunknown.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify -fms-extensions %s
   2
   3 extern "C++" struct __declspec(uuid("00000000-0000-0000-C000-000000000046")) IUnknown {
   4   void foo();
   5   // Definitions aren't allowed, unless they are a template.
   6   template<typename T>
   7   void bar(T t){}
   8 };
   9
  10 struct IPropertyPageBase : public IUnknown {};
  11 struct IPropertyPage : public IPropertyPageBase {};
  12 __interface ISfFileIOPropertyPage : public IPropertyPage {};
  13
  14
  15 namespace NS {
  16   struct __declspec(uuid("00000000-0000-0000-C000-000000000046")) IUnknown {};
  17   // expected-error@+1 {{interface type cannot inherit from}}
  18   __interface IPropertyPageBase : public IUnknown {};
  19 }
  20
  21 namespace NS2 {
  22 extern "C++" struct __declspec(uuid("00000000-0000-0000-C000-000000000046")) IUnknown {};
  23 // expected-error@+1 {{interface type cannot inherit from}}
  24 __interface IPropertyPageBase : public IUnknown{};
  25 }
  26
  27 // expected-error@+1 {{interface type cannot inherit from}}
  28 __interface IPropertyPageBase2 : public NS::IUnknown {};
  29
  30 __interface temp_iface {};
  31 struct bad_base : temp_iface {};
  32 // expected-error@+1 {{interface type cannot inherit from}}
  33 __interface bad_inherit : public bad_base{};
  34
  35 struct mult_inher_base : temp_iface, IUnknown {};
  36 // expected-error@+1 {{interface type cannot inherit from}}
  37 __interface bad_inherit2 : public mult_inher_base{};
  38
  39 struct PageBase : public IUnknown {};
  40 struct Page3 : public PageBase {};
  41 struct Page4 : public PageBase {};
  42 __interface PropertyPage : public Page4 {};
  43
  44 struct Page5 : public Page3, Page4{};
  45 // expected-error@+1 {{interface type cannot inherit from}}
  46 __interface PropertyPage2 : public Page5 {};
  47
  48 __interface IF1 {};
  49 __interface PP : IUnknown, IF1{};
  50 __interface PP2 : PP, Page3, Page4{};