1 // RUN: %clang_cc1 -verify -std=c++11 %s 2 3 template <typename T> struct OwnPtr { 4 T *p; 5 ~OwnPtr() { 6 // expected-error@+1 {{invalid application of 'sizeof'}} 7 static_assert(sizeof(T) > 0, "incomplete T"); 8 delete p; 9 } 10 }; 11 12 namespace use_vtable_for_vcall { 13 struct Incomplete; // expected-note {{forward declaration}} 14 struct A { 15 virtual ~A() {} 16 virtual void m() {} 17 }; 18 struct B : A { // expected-note {{in instantiation}} 19 B(); 20 virtual void m() { } 21 virtual void m2() { static_cast<A *>(this)->m(); } 22 OwnPtr<Incomplete> m_sqlError; 23 }; 24 25 B *f() { 26 return new B(); 27 } 28 } 29 30 namespace dont_mark_qualified_vcall { 31 struct Incomplete; 32 struct A { 33 virtual ~A() {} 34 virtual void m() {} 35 }; 36 struct B : A { 37 B(); 38 // Previously we would mark B's vtable referenced to devirtualize this call to 39 // A::m, even though it's not a virtual call. 40 virtual void m() { A::m(); } 41 OwnPtr<Incomplete> m_sqlError; 42 }; 43 44 B *f() { 45 return new B(); 46 } 47 } 48