diff options
Diffstat (limited to 'clang/test/SemaCXX/destructor.cpp')
| -rw-r--r-- | clang/test/SemaCXX/destructor.cpp | 365 | 
1 files changed, 365 insertions, 0 deletions
| diff --git a/clang/test/SemaCXX/destructor.cpp b/clang/test/SemaCXX/destructor.cpp new file mode 100644 index 0000000..f3c6ab0 --- /dev/null +++ b/clang/test/SemaCXX/destructor.cpp @@ -0,0 +1,365 @@ +// RUN: %clang_cc1 -std=c++11 -fsyntax-only -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -verify %s +class A { +public: +  ~A(); +}; + +class B { +public: +  ~B() { } +}; + +class C { +public: +  (~C)() { } +}; + +struct D { +  static void ~D(int, ...) const { } //                          \ +    // expected-error{{static member function cannot have 'const' qualifier}} \ +    // expected-error{{destructor cannot be declared 'static'}}  \ +    // expected-error{{destructor cannot have any parameters}}   \ +    // expected-error{{destructor cannot be variadic}} \ +    // expected-error{{destructor cannot have a return type}} \ +    // expected-error{{'const' qualifier is not allowed on a destructor}} +}; + +struct D2 { +  void ~D2() { } //                          \ +  // expected-error{{destructor cannot have a return type}}   +}; + + +struct E; + +typedef E E_typedef; +struct E { +  ~E_typedef(); // expected-error{{destructor cannot be declared using a typedef 'E_typedef' (aka 'E') of the class name}} +}; + +struct F { +  (~F)(); // expected-note {{previous declaration is here}} +  ~F(); // expected-error {{destructor cannot be redeclared}} +}; + +~; // expected-error {{expected a class name after '~' to name a destructor}} +~undef(); // expected-error {{expected the class name after '~' to name a destructor}} +~operator+(int, int);  // expected-error {{expected a class name after '~' to name a destructor}} +~F(){} // expected-error {{destructor must be a non-static member function}} + +struct G { +  ~G(); +}; + +G::~G() { } + +// <rdar://problem/6841210> +struct H { +  ~H(void) { }  +}; + +struct X {}; + +struct Y { +  ~X(); // expected-error {{expected the class name after '~' to name the enclosing class}} +}; + +namespace PR6421 { +  class T; // expected-note{{forward declaration}} + +  class QGenericArgument // expected-note{{declared here}} +  { +    template<typename U> +    void foo(T t) // expected-error{{variable has incomplete type}} +    { } +     +    void disconnect() +    { +      T* t; +      bob<QGenericArgument>(t); // expected-error{{undeclared identifier 'bob'}} \ +      // expected-error{{does not refer to a value}} +    } +  }; +} + +namespace PR6709 { +  template<class T> class X { T v; ~X() { ++*v; } }; +  void a(X<int> x) {} +} + +struct X0 { virtual ~X0() throw(); }; +struct X1 : public X0 { }; + +// Make sure we instantiate operator deletes when building a virtual +// destructor. +namespace test6 { +  template <class T> class A { +  public: +    void *operator new(__SIZE_TYPE__); +    void operator delete(void *p) { +      T::deleteIt(p); // expected-error {{type 'int' cannot be used prior to '::'}} +    } + +    virtual ~A() {} +  }; + +  class B : A<int> { B(); }; // expected-note {{in instantiation of member function 'test6::A<int>::operator delete' requested here}} +  B::B() {} +} + +// Make sure classes are marked invalid when they have invalid +// members.  This avoids a crash-on-invalid. +namespace test7 { +  struct A { +    ~A() const; // expected-error {{'const' qualifier is not allowed on a destructor}} +  }; +  struct B : A {}; + +  void test() { +    B *b; +    b->~B(); +  } +} + +namespace nonvirtualdtor { +struct S1 { // expected-warning {{has virtual functions but non-virtual destructor}} +  virtual void m(); +}; + +struct S2 { +  ~S2(); // expected-warning {{has virtual functions but non-virtual destructor}} +  virtual void m(); +}; + +struct S3 : public S1 {  // expected-warning {{has virtual functions but non-virtual destructor}} +  virtual void m(); +}; + +struct S4 : public S2 {  // expected-warning {{has virtual functions but non-virtual destructor}} +  virtual void m(); +}; + +struct B { +  virtual ~B(); +  virtual void m(); +}; + +struct S5 : public B { +  virtual void m(); +}; + +struct S6 { +  virtual void m(); +private: +  ~S6(); +}; + +struct S7 { +  virtual void m(); +protected: +  ~S7(); +}; + +template<class T> class TS : public B { +  virtual void m(); +}; + +TS<int> baz; + +template<class T> class TS2 { // expected-warning {{'nonvirtualdtor::TS2<int>' has virtual functions but non-virtual destructor}} +  virtual void m(); +}; + +TS2<int> foo; // expected-note {{instantiation}} +} + +namespace dnvd { // delete-non-virtual-dtor warning +struct NP {}; + +struct B { // expected-warning {{has virtual functions but non-virtual destructor}} +  virtual void foo(); +}; + +struct D: B {}; // expected-warning {{has virtual functions but non-virtual destructor}} + +struct F final: B {}; // expected-warning {{has virtual functions but non-virtual destructor}} + +struct VB { +  virtual void foo(); +  virtual ~VB(); +}; + +struct VD: VB {}; + +struct VF final: VB {}; + +template <typename T> +class simple_ptr { +public: +  simple_ptr(T* t): _ptr(t) {} +  ~simple_ptr() { delete _ptr; } // \ +    // expected-warning {{delete called on 'dnvd::B' that has virtual functions but non-virtual destructor}} \ +    // expected-warning {{delete called on 'dnvd::D' that has virtual functions but non-virtual destructor}} +  T& operator*() const { return *_ptr; } +private: +  T* _ptr; +}; + +template <typename T> +class simple_ptr2 { +public: +  simple_ptr2(T* t): _ptr(t) {} +  ~simple_ptr2() { delete _ptr; } // expected-warning {{delete called on 'dnvd::B' that has virtual functions but non-virtual destructor}} +  T& operator*() const { return *_ptr; } +private: +  T* _ptr; +}; + +void use(B&); +void use(VB&); + +void nowarnstack() { +  B b; use(b); +  D d; use(d); +  F f; use(f); +  VB vb; use(vb); +  VD vd; use(vd); +  VF vf; use(vf); +} + +void nowarnnonpoly() { +  { +    NP* np = new NP(); +    delete np; +  } +  { +    NP* np = new NP[4]; +    delete[] np; +  } +} + +void nowarnarray() { +  { +    B* b = new B[4]; +    delete[] b; +  } +  { +    D* d = new D[4]; +    delete[] d; +  } +  { +    VB* vb = new VB[4]; +    delete[] vb; +  } +  { +    VD* vd = new VD[4]; +    delete[] vd; +  } +} + +template <typename T> +void nowarntemplate() { +  { +    T* t = new T(); +    delete t; +  } +  { +    T* t = new T[4]; +    delete[] t; +  } +} + +void nowarn0() { +  { +    F* f = new F(); +    delete f; +  } +  { +    VB* vb = new VB(); +    delete vb; +  } +  { +    VB* vb = new VD(); +    delete vb; +  } +  { +    VD* vd = new VD(); +    delete vd; +  } +  { +    VF* vf = new VF(); +    delete vf; +  } +} + +void warn0() { +  { +    B* b = new B(); +    delete b; // expected-warning {{delete called on 'dnvd::B' that has virtual functions but non-virtual destructor}} +  } +  { +    B* b = new D(); +    delete b; // expected-warning {{delete called on 'dnvd::B' that has virtual functions but non-virtual destructor}} +  } +  { +    D* d = new D(); +    delete d; // expected-warning {{delete called on 'dnvd::D' that has virtual functions but non-virtual destructor}} +  } +} + +void nowarn1() { +  { +    simple_ptr<F> f(new F()); +    use(*f); +  } +  { +    simple_ptr<VB> vb(new VB()); +    use(*vb); +  } +  { +    simple_ptr<VB> vb(new VD()); +    use(*vb); +  } +  { +    simple_ptr<VD> vd(new VD()); +    use(*vd); +  } +  { +    simple_ptr<VF> vf(new VF()); +    use(*vf); +  } +} + +void warn1() { +  { +    simple_ptr<B> b(new B()); // expected-note {{in instantiation of member function 'dnvd::simple_ptr<dnvd::B>::~simple_ptr' requested here}} +    use(*b); +  } +  { +    simple_ptr2<B> b(new D()); // expected-note {{in instantiation of member function 'dnvd::simple_ptr2<dnvd::B>::~simple_ptr2' requested here}} +    use(*b); +  } +  { +    simple_ptr<D> d(new D()); // expected-note {{in instantiation of member function 'dnvd::simple_ptr<dnvd::D>::~simple_ptr' requested here}} +    use(*d); +  } +} +} + +namespace PR9238 { +  class B { public: ~B(); }; +  class C : virtual B { public: ~C() { } }; +} + +namespace PR7900 { +  struct A { // expected-note 2{{type 'PR7900::A' is declared here}} +  }; +  struct B : public A { +  }; +  void foo() { +    B b; +    b.~B(); +    b.~A(); // expected-error{{destructor type 'PR7900::A' in object destruction expression does not match the type 'PR7900::B' of the object being destroyed}} +    (&b)->~A(); // expected-error{{destructor type 'PR7900::A' in object destruction expression does not match the type 'PR7900::B' of the object being destroyed}} +  } +} | 
