1 // RUN: %clang_cc1 %s -fsyntax-only -verify -fms-extensions -Wno-microsoft -std=c++11 2 3 __interface I1 { 4 // expected-error@+1 {{user-declared constructor is not permitted within an interface type}} 5 I1(); 6 // expected-error@+1 {{user-declared destructor is not permitted within an interface type}} 7 ~I1(); 8 virtual void fn1() const; 9 // expected-error@+1 {{operator 'operator!' is not permitted within an interface type}} 10 bool operator!(); 11 // expected-error@+1 {{operator 'operator int' is not permitted within an interface type}} 12 operator int(); 13 // expected-error@+1 {{nested class I1::<anonymous> is not permitted within an interface type}} 14 struct { int a; }; 15 void fn2() { 16 struct A { }; // should be ignored: not a nested class 17 } 18 protected: // expected-error {{interface types cannot specify 'protected' access}} 19 typedef void void_t; 20 using int_t = int; 21 private: // expected-error {{interface types cannot specify 'private' access}} 22 static_assert(true, "oops"); 23 }; 24 25 __interface I2 { 26 // expected-error@+1 {{data member 'i' is not permitted within an interface type}} 27 int i; 28 // expected-error@+1 {{static member function 'fn1' is not permitted within an interface type}} 29 static int fn1(); 30 private: // expected-error {{interface types cannot specify 'private' access}} 31 // expected-error@+1 {{non-public member function 'fn2' is not permitted within an interface type}} 32 void fn2(); 33 protected: // expected-error {{interface types cannot specify 'protected' access}} 34 // expected-error@+1 {{non-public member function 'fn3' is not permitted within an interface type}} 35 void fn3(); 36 public: 37 void fn4(); 38 }; 39 40 // expected-error@+1 {{'final' keyword not permitted with interface types}} 41 __interface I3 final { 42 }; 43 44 __interface I4 : I1, I2 { 45 void fn1() const override; 46 // expected-error@+1 {{'final' keyword not permitted with interface types}} 47 void fn2() final; 48 }; 49 50 // expected-error@+1 {{interface type cannot inherit from non-public 'interface I1'}} 51 __interface I5 : private I1 { 52 }; 53 54 template <typename X> 55 __interface I6 : X { 56 }; 57 58 struct S { }; 59 class C { }; 60 __interface I { }; 61 62 static_assert(!__is_interface_class(S), "oops"); 63 static_assert(!__is_interface_class(C), "oops"); 64 static_assert(__is_interface_class(I), "oops"); 65 66 // expected-error@55 {{interface type cannot inherit from 'struct S'}} 67 // expected-note@+1 {{in instantiation of template class 'I6<S>' requested here}} 68 struct S1 : I6<S> { 69 }; 70 71 // expected-error@55 {{interface type cannot inherit from 'class C'}} 72 // expected-note@+1 {{in instantiation of template class 'I6<C>' requested here}} 73 class C1 : I6<C> { 74 }; 75 76 class C2 : I6<I> { 77 }; 78
