1// RUN: %clang_cc1 -std=c++11 -triple %itanium_abi_triple -fsyntax-only -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -verify %s 2// RUN: %clang_cc1 -std=c++11 -triple %ms_abi_triple -DMSABI -fsyntax-only -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -verify %s 3class A { 4public: 5 ~A(); 6}; 7 8class B { 9public: 10 ~B() { } 11}; 12 13class C { 14public: 15 (~C)() { } 16}; 17 18struct D { 19 static void ~D(int, ...) const { } // \ 20 // expected-error{{static member function cannot have 'const' qualifier}} \ 21 // expected-error{{destructor cannot be declared 'static'}} \ 22 // expected-error{{destructor cannot have any parameters}} \ 23 // expected-error{{destructor cannot be variadic}} \ 24 // expected-error{{destructor cannot have a return type}} \ 25 // expected-error{{'const' qualifier is not allowed on a destructor}} 26}; 27 28struct D2 { 29 void ~D2() { } // \ 30 // expected-error{{destructor cannot have a return type}} 31}; 32 33 34struct E; 35 36typedef E E_typedef; 37struct E { 38 ~E_typedef(); // expected-error{{destructor cannot be declared using a typedef 'E_typedef' (aka 'E') of the class name}} 39}; 40 41struct F { 42 (~F)(); // expected-note {{previous declaration is here}} 43 ~F(); // expected-error {{destructor cannot be redeclared}} 44}; 45 46~; // expected-error {{expected a class name after '~' to name a destructor}} 47~undef(); // expected-error {{expected the class name after '~' to name a destructor}} 48~operator+(int, int); // expected-error {{expected a class name after '~' to name a destructor}} 49~F(){} // expected-error {{destructor must be a non-static member function}} 50 51struct G { 52 ~G(); 53}; 54 55G::~G() { } 56 57// <rdar://problem/6841210> 58struct H { 59 ~H(void) { } 60}; 61 62struct X {}; 63 64struct Y { 65 ~X(); // expected-error {{expected the class name after '~' to name the enclosing class}} 66}; 67 68namespace PR6421 { 69 class T; // expected-note{{forward declaration}} 70 71 class QGenericArgument // expected-note{{declared here}} 72 { 73 template<typename U> 74 void foo(T t) // expected-error{{variable has incomplete type}} 75 { } 76 77 void disconnect() 78 { 79 T* t; 80 bob<QGenericArgument>(t); // expected-error{{undeclared identifier 'bob'}} \ 81 // expected-error{{does not refer to a value}} 82 } 83 }; 84} 85 86namespace PR6709 { 87#ifdef MSABI 88 // This bug, "Clang instantiates destructor for function argument" is intended 89 // behaviour in the Microsoft ABI because the callee needs to destruct the arguments. 90 // expected-error@+3 {{indirection requires pointer operand ('int' invalid)}} 91 // expected-note@+3 {{in instantiation of member function 'PR6709::X<int>::~X' requested here}} 92#endif 93 template<class T> class X { T v; ~X() { ++*v; } }; 94 void a(X<int> x) {} 95} 96 97struct X0 { virtual ~X0() throw(); }; 98struct X1 : public X0 { }; 99 100// Make sure we instantiate operator deletes when building a virtual 101// destructor. 102namespace test6 { 103 template <class T> class A { 104 public: 105 void *operator new(__SIZE_TYPE__); 106 void operator delete(void *p) { 107 T::deleteIt(p); // expected-error {{type 'int' cannot be used prior to '::'}} 108 } 109 110#ifdef MSABI 111 // expected-note@+2 {{in instantiation of member function 'test6::A<int>::operator delete' requested here}} 112#endif 113 virtual ~A() {} 114 }; 115 116#ifndef MSABI 117 // expected-note@+2 {{in instantiation of member function 'test6::A<int>::operator delete' requested here}} 118#endif 119 class B : A<int> { B(); }; 120 B::B() {} 121} 122 123// Make sure classes are marked invalid when they have invalid 124// members. This avoids a crash-on-invalid. 125namespace test7 { 126 struct A { 127 ~A() const; // expected-error {{'const' qualifier is not allowed on a destructor}} 128 }; 129 struct B : A {}; 130 131 void test() { 132 B *b; 133 b->~B(); 134 } 135} 136 137namespace nonvirtualdtor { 138struct S1 { // expected-warning {{has virtual functions but non-virtual destructor}} 139 virtual void m(); 140}; 141 142struct S2 { 143 ~S2(); // expected-warning {{has virtual functions but non-virtual destructor}} 144 virtual void m(); 145}; 146 147struct S3 : public S1 { // expected-warning {{has virtual functions but non-virtual destructor}} 148 virtual void m(); 149}; 150 151struct S4 : public S2 { // expected-warning {{has virtual functions but non-virtual destructor}} 152 virtual void m(); 153}; 154 155struct B { 156 virtual ~B(); 157 virtual void m(); 158}; 159 160struct S5 : public B { 161 virtual void m(); 162}; 163 164struct S6 { 165 virtual void m(); 166private: 167 ~S6(); 168}; 169 170struct S7 { 171 virtual void m(); 172protected: 173 ~S7(); 174}; 175 176struct S8 {} s8; 177 178UnknownType S8::~S8() { // expected-error {{unknown type name 'UnknownType'}} 179 s8.~S8(); 180} 181 182template<class T> class TS : public B { 183 virtual void m(); 184}; 185 186TS<int> baz; 187 188template<class T> class TS2 { // expected-warning {{'nonvirtualdtor::TS2<int>' has virtual functions but non-virtual destructor}} 189 virtual void m(); 190}; 191 192TS2<int> foo; // expected-note {{instantiation}} 193} 194 195namespace dnvd { // delete-non-virtual-dtor warning 196struct NP {}; 197 198struct B { // expected-warning {{has virtual functions but non-virtual destructor}} 199 virtual void foo(); 200}; 201 202struct D: B {}; // expected-warning {{has virtual functions but non-virtual destructor}} 203 204struct F final : B {}; 205 206struct VB { 207 virtual void foo(); 208 virtual ~VB(); 209}; 210 211struct VD: VB {}; 212 213struct VF final: VB {}; 214 215template <typename T> 216class simple_ptr { 217public: 218 simple_ptr(T* t): _ptr(t) {} 219 ~simple_ptr() { delete _ptr; } // \ 220 // expected-warning {{delete called on 'dnvd::B' that has virtual functions but non-virtual destructor}} \ 221 // expected-warning {{delete called on 'dnvd::D' that has virtual functions but non-virtual destructor}} 222 T& operator*() const { return *_ptr; } 223private: 224 T* _ptr; 225}; 226 227template <typename T> 228class simple_ptr2 { 229public: 230 simple_ptr2(T* t): _ptr(t) {} 231 ~simple_ptr2() { delete _ptr; } // expected-warning {{delete called on 'dnvd::B' that has virtual functions but non-virtual destructor}} 232 T& operator*() const { return *_ptr; } 233private: 234 T* _ptr; 235}; 236 237void use(B&); 238void use(VB&); 239 240void nowarnstack() { 241 B b; use(b); 242 D d; use(d); 243 F f; use(f); 244 VB vb; use(vb); 245 VD vd; use(vd); 246 VF vf; use(vf); 247} 248 249void nowarnnonpoly() { 250 { 251 NP* np = new NP(); 252 delete np; 253 } 254 { 255 NP* np = new NP[4]; 256 delete[] np; 257 } 258} 259 260void nowarnarray() { 261 { 262 B* b = new B[4]; 263 delete[] b; 264 } 265 { 266 D* d = new D[4]; 267 delete[] d; 268 } 269 { 270 VB* vb = new VB[4]; 271 delete[] vb; 272 } 273 { 274 VD* vd = new VD[4]; 275 delete[] vd; 276 } 277} 278 279template <typename T> 280void nowarntemplate() { 281 { 282 T* t = new T(); 283 delete t; 284 } 285 { 286 T* t = new T[4]; 287 delete[] t; 288 } 289} 290 291void nowarn0() { 292 { 293 F* f = new F(); 294 delete f; 295 } 296 { 297 VB* vb = new VB(); 298 delete vb; 299 } 300 { 301 VB* vb = new VD(); 302 delete vb; 303 } 304 { 305 VD* vd = new VD(); 306 delete vd; 307 } 308 { 309 VF* vf = new VF(); 310 delete vf; 311 } 312} 313 314void warn0() { 315 { 316 B* b = new B(); 317 delete b; // expected-warning {{delete called on 'dnvd::B' that has virtual functions but non-virtual destructor}} 318 } 319 { 320 B* b = new D(); 321 delete b; // expected-warning {{delete called on 'dnvd::B' that has virtual functions but non-virtual destructor}} 322 } 323 { 324 D* d = new D(); 325 delete d; // expected-warning {{delete called on 'dnvd::D' that has virtual functions but non-virtual destructor}} 326 } 327} 328 329void nowarn1() { 330 { 331 simple_ptr<F> f(new F()); 332 use(*f); 333 } 334 { 335 simple_ptr<VB> vb(new VB()); 336 use(*vb); 337 } 338 { 339 simple_ptr<VB> vb(new VD()); 340 use(*vb); 341 } 342 { 343 simple_ptr<VD> vd(new VD()); 344 use(*vd); 345 } 346 { 347 simple_ptr<VF> vf(new VF()); 348 use(*vf); 349 } 350} 351 352void warn1() { 353 { 354 simple_ptr<B> b(new B()); // expected-note {{in instantiation of member function 'dnvd::simple_ptr<dnvd::B>::~simple_ptr' requested here}} 355 use(*b); 356 } 357 { 358 simple_ptr2<B> b(new D()); // expected-note {{in instantiation of member function 'dnvd::simple_ptr2<dnvd::B>::~simple_ptr2' requested here}} 359 use(*b); 360 } 361 { 362 simple_ptr<D> d(new D()); // expected-note {{in instantiation of member function 'dnvd::simple_ptr<dnvd::D>::~simple_ptr' requested here}} 363 use(*d); 364 } 365} 366} 367 368namespace PR9238 { 369 class B { public: ~B(); }; 370 class C : virtual B { public: ~C() { } }; 371} 372 373namespace PR7900 { 374 struct A { // expected-note 2{{type 'PR7900::A' is declared here}} 375 }; 376 struct B : public A { 377 }; 378 void foo() { 379 B b; 380 b.~B(); 381 b.~A(); // expected-error{{destructor type 'PR7900::A' in object destruction expression does not match the type 'PR7900::B' of the object being destroyed}} 382 (&b)->~A(); // expected-error{{destructor type 'PR7900::A' in object destruction expression does not match the type 'PR7900::B' of the object being destroyed}} 383 } 384} 385 386namespace PR16892 { 387 auto p = &A::~A; // expected-error{{taking the address of a destructor}} 388} 389 390namespace PR20238 { 391struct S { 392 volatile ~S() { } // expected-error{{destructor cannot have a return type}} 393}; 394} 395 396namespace PR22668 { 397struct S { 398}; 399void f(S s) { 400 (s.~S)(); 401} 402void g(S s) { 403 (s.~S); // expected-error{{reference to destructor must be called}} 404} 405} 406