diff options
Diffstat (limited to 'clang/test/CXX/class.access/p4.cpp')
-rw-r--r-- | clang/test/CXX/class.access/p4.cpp | 510 |
1 files changed, 510 insertions, 0 deletions
diff --git a/clang/test/CXX/class.access/p4.cpp b/clang/test/CXX/class.access/p4.cpp new file mode 100644 index 0000000..5ad738b --- /dev/null +++ b/clang/test/CXX/class.access/p4.cpp @@ -0,0 +1,510 @@ +// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify %s + +// C++0x [class.access]p4: + +// Access control is applied uniformly to all names, whether the +// names are referred to from declarations or expressions. In the +// case of overloaded function names, access control is applied to +// the function selected by overload resolution. + +class Public {} PublicInst; +class Protected {} ProtectedInst; +class Private {} PrivateInst; + +namespace test0 { + class A { + public: + void foo(Public&); + protected: + void foo(Protected&); // expected-note 2 {{declared protected here}} + private: + void foo(Private&); // expected-note 2 {{declared private here}} + }; + + void test(A *op) { + op->foo(PublicInst); + op->foo(ProtectedInst); // expected-error {{'foo' is a protected member}} + op->foo(PrivateInst); // expected-error {{'foo' is a private member}} + + void (A::*a)(Public&) = &A::foo; + void (A::*b)(Protected&) = &A::foo; // expected-error {{'foo' is a protected member}} + void (A::*c)(Private&) = &A::foo; // expected-error {{'foo' is a private member}} + } +} + +// Member operators. +namespace test1 { + class A { + public: + void operator+(Public&); + void operator[](Public&); + void operator()(Public&); + typedef void (*PublicSurrogate)(Public&); + operator PublicSurrogate() const; + protected: + void operator+(Protected&); // expected-note {{declared protected here}} + void operator[](Protected&); // expected-note {{declared protected here}} + void operator()(Protected&); // expected-note {{declared protected here}} + typedef void (*ProtectedSurrogate)(Protected&); + operator ProtectedSurrogate() const; // expected-note {{declared protected here}} + private: + void operator+(Private&); // expected-note {{declared private here}} + void operator[](Private&); // expected-note {{declared private here}} + void operator()(Private&); // expected-note {{declared private here}} + void operator-(); // expected-note {{declared private here}} + typedef void (*PrivateSurrogate)(Private&); + operator PrivateSurrogate() const; // expected-note {{declared private here}} + }; + void operator+(const A &, Public&); + void operator+(const A &, Protected&); + void operator+(const A &, Private&); + void operator-(const A &); + + void test(A &a, Public &pub, Protected &prot, Private &priv) { + a + pub; + a + prot; // expected-error {{'operator+' is a protected member}} + a + priv; // expected-error {{'operator+' is a private member}} + a[pub]; + a[prot]; // expected-error {{'operator[]' is a protected member}} + a[priv]; // expected-error {{'operator[]' is a private member}} + a(pub); + a(prot); // expected-error {{'operator()' is a protected member}} + a(priv); // expected-error {{'operator()' is a private member}} + -a; // expected-error {{'operator-' is a private member}} + + const A &ca = a; + ca + pub; + ca + prot; + ca + priv; + -ca; + // These are all surrogate calls + ca(pub); + ca(prot); // expected-error {{'operator void (*)(class Protected &)' is a protected member}} + ca(priv); // expected-error {{'operator void (*)(class Private &)' is a private member}} + } +} + +// Implicit constructor calls. +namespace test2 { + class A { + private: + A(); // expected-note 3 {{declared private here}} + + static A foo; + }; + + A a; // expected-error {{calling a private constructor}} + A A::foo; // okay + + class B : A { }; // expected-error {{base class 'test2::A' has private default constructor}} + B b; // expected-note{{implicit default constructor}} + + class C : virtual A { + public: + C(); + }; + + class D : C { }; // expected-error {{inherited virtual base class 'test2::A' has private default constructor}} + D d; // expected-note{{implicit default constructor}} +} + +// Implicit destructor calls. +namespace test3 { + class A { + private: + ~A(); // expected-note 2 {{declared private here}} + static A foo; + }; + + A a; // expected-error {{variable of type 'test3::A' has private destructor}} + A A::foo; + + void foo(A param) { // okay + A local; // expected-error {{variable of type 'test3::A' has private destructor}} + } + + template <unsigned N> class Base { ~Base(); }; // expected-note 14 {{declared private here}} + class Base2 : virtual Base<2> { ~Base2(); }; // expected-note 3 {{declared private here}} \ + // expected-error {{base class 'Base<2>' has private destructor}} + class Base3 : virtual Base<3> { public: ~Base3(); }; // expected-error {{base class 'Base<3>' has private destructor}} + + // These don't cause diagnostics because we don't need the destructor. + class Derived0 : Base<0> { ~Derived0(); }; + class Derived1 : Base<1> { }; + + class Derived2 : // expected-error {{inherited virtual base class 'Base<2>' has private destructor}} \ + // expected-error {{inherited virtual base class 'Base<3>' has private destructor}} + Base<0>, // expected-error {{base class 'Base<0>' has private destructor}} + virtual Base<1>, // expected-error {{base class 'Base<1>' has private destructor}} + Base2, // expected-error {{base class 'test3::Base2' has private destructor}} + virtual Base3 + { + ~Derived2() {} + }; + + class Derived3 : // expected-error 2 {{inherited virtual base class 'Base<2>' has private destructor}} \ + // expected-error 2 {{inherited virtual base class 'Base<3>' has private destructor}} \ + // expected-note 2{{implicit default constructor}} + Base<0>, // expected-error 2 {{base class 'Base<0>' has private destructor}} + virtual Base<1>, // expected-error 2 {{base class 'Base<1>' has private destructor}} + Base2, // expected-error 2 {{base class 'test3::Base2' has private destructor}} + virtual Base3 + {}; + Derived3 d3; // expected-note {{implicit default constructor}}\ + // expected-note{{implicit default destructor}}} +} + +// Conversion functions. +namespace test4 { + class Base { + private: + operator Private(); // expected-note 4 {{declared private here}} + public: + operator Public(); // expected-note 2{{member is declared here}} + }; + + class Derived1 : private Base { // expected-note 2 {{declared private here}} \ + // expected-note {{constrained by private inheritance}} + Private test1() { return *this; } // expected-error {{'operator Private' is a private member}} + Public test2() { return *this; } + }; + Private test1(Derived1 &d) { return d; } // expected-error {{'operator Private' is a private member}} \ + // expected-error {{cannot cast 'test4::Derived1' to its private base class}} + Public test2(Derived1 &d) { return d; } // expected-error {{cannot cast 'test4::Derived1' to its private base class}} \ + // expected-error {{'operator Public' is a private member}} + + + class Derived2 : public Base { + Private test1() { return *this; } // expected-error {{'operator Private' is a private member}} + Public test2() { return *this; } + }; + Private test1(Derived2 &d) { return d; } // expected-error {{'operator Private' is a private member}} + Public test2(Derived2 &d) { return d; } + + class Derived3 : private Base { // expected-note {{constrained by private inheritance here}} \ + // expected-note {{declared private here}} + public: + operator Private(); + }; + Private test1(Derived3 &d) { return d; } + Public test2(Derived3 &d) { return d; } // expected-error {{'operator Public' is a private member of 'test4::Base'}} \ + // expected-error {{cannot cast 'test4::Derived3' to its private base class}} + + class Derived4 : public Base { + public: + operator Private(); + }; + Private test1(Derived4 &d) { return d; } + Public test2(Derived4 &d) { return d; } +} + +// Implicit copy assignment operator uses. +namespace test5 { + class A { + void operator=(const A &); // expected-note 2 {{implicitly declared private here}} + }; + + class Test1 { A a; }; // expected-error {{private member}} + void test1() { + Test1 a; + a = Test1(); // expected-note{{implicit default copy}} + } + + class Test2 : A {}; // expected-error {{private member}} + void test2() { + Test2 a; + a = Test2(); // expected-note{{implicit default copy}} + } +} + +// Implicit copy constructor uses. +namespace test6 { + class A { + public: A(); + private: A(const A &); // expected-note 2 {{declared private here}} + }; + + class Test1 { A a; }; // expected-error {{field of type 'test6::A' has private copy constructor}} + void test1(const Test1 &t) { + Test1 a = t; // expected-note{{implicit default copy}} + } + + class Test2 : A {}; // expected-error {{base class 'test6::A' has private copy constructor}} + void test2(const Test2 &t) { + Test2 a = t; // expected-note{{implicit default copy}} + } +} + +// Redeclaration lookups are not accesses. +namespace test7 { + class A { + int private_member; + }; + class B : A { + int foo(int private_member) { + return 0; + } + }; +} + +// Ignored operator new and delete overloads are not +namespace test8 { + typedef __typeof__(sizeof(int)) size_t; + + class A { + void *operator new(size_t s); + void operator delete(void *p); + public: + void *operator new(size_t s, int n); + void operator delete(void *p, int n); + }; + + void test() { + new (2) A(); + } +} + +// Don't silently upgrade forbidden-access paths to private. +namespace test9 { + class A { + public: static int x; // expected-note {{member is declared here}} + }; + class B : private A { // expected-note {{constrained by private inheritance here}} + }; + class C : public B { + static int getX() { return x; } // expected-error {{'x' is a private member of 'test9::A'}} + }; +} + +namespace test10 { + class A { + enum { + value = 10 // expected-note {{declared private here}} + }; + friend class C; + }; + + class B { + enum { + value = A::value // expected-error {{'value' is a private member of 'test10::A'}} + }; + }; + + class C { + enum { + value = A::value + }; + }; +} + +namespace test11 { + class A { + protected: virtual ~A(); + }; + + class B : public A { + ~B(); + }; + + B::~B() {}; +} + +namespace test12 { + class A { + int x; + + void foo() { + class Local { + int foo(A *a) { + return a->x; + } + }; + } + }; +} + +namespace test13 { + struct A { + int x; + unsigned foo() const; + }; + + struct B : protected A { + using A::foo; + using A::x; + }; + + void test() { + A *d; + d->foo(); + (void) d->x; + } +} + +// Destructors for temporaries. +namespace test14 { + class A { + private: ~A(); // expected-note {{declared private here}} + }; + A foo(); + + void test() { + foo(); // expected-error {{temporary of type 'test14::A' has private destructor}} + } + + class X { + ~X(); // expected-note {{declared private here}} + }; + + struct Y1 { + operator X(); + }; + + void g() { + const X &xr = Y1(); // expected-error{{temporary of type 'test14::X' has private destructor}} + } +} + +// PR 7024 +namespace test15 { + template <class T> class A { + private: + int private_foo; // expected-note {{declared private here}} + static int private_sfoo; // expected-note {{declared private here}} + protected: + int protected_foo; // expected-note 3 {{declared protected here}} // expected-note {{can only access this member on an object of type 'test15::B<int>'}} + static int protected_sfoo; // expected-note 3 {{declared protected here}} + + int test1(A<int> &a) { + return a.private_foo; // expected-error {{private member}} + } + + int test2(A<int> &a) { + return a.private_sfoo; // expected-error {{private member}} + } + + int test3(A<int> &a) { + return a.protected_foo; // expected-error {{protected member}} + } + + int test4(A<int> &a) { + return a.protected_sfoo; // expected-error {{protected member}} + } + }; + + template class A<int>; + template class A<long>; // expected-note 4 {{in instantiation}} + + template <class T> class B : public A<T> { + // TODO: These first two accesses can be detected as ill-formed at + // definition time because they're member accesses and A<int> can't + // be a subclass of B<T> for any T. + + int test1(A<int> &a) { + return a.protected_foo; // expected-error 2 {{protected member}} + } + + int test2(A<int> &a) { + return a.protected_sfoo; // expected-error {{protected member}} + } + + int test3(B<int> &b) { + return b.protected_foo; // expected-error {{protected member}} + } + + int test4(B<int> &b) { + return b.protected_sfoo; // expected-error {{protected member}} + } + }; + + template class B<int>; // expected-note {{in instantiation}} + template class B<long>; // expected-note 4 {{in instantiation}} +} + +// PR7281 +namespace test16 { + class A { ~A(); }; // expected-note 2{{declared private here}} + void b() { throw A(); } // expected-error{{temporary of type 'test16::A' has private destructor}} \ + // expected-error{{exception object of type 'test16::A' has private destructor}} +} + +// rdar://problem/8146294 +namespace test17 { + class A { + template <typename T> class Inner { }; // expected-note {{declared private here}} + }; + + A::Inner<int> s; // expected-error {{'Inner' is a private member of 'test17::A'}} +} + +namespace test18 { + template <class T> class A {}; + class B : A<int> { + A<int> member; + }; + + // FIXME: this access to A should be forbidden (because C++ is dumb), + // but LookupResult can't express the necessary information to do + // the check, so we aggressively suppress access control. + class C : B { + A<int> member; + }; +} + +// PR8325 +namespace test19 { + class A { ~A(); }; + // The destructor is not implicitly referenced here. Contrast to test16, + // testing PR7281, earlier in this file. + void b(A* x) { throw x; } +} + +// PR7930 +namespace test20 { + class Foo { + Foo(); // expected-note {{implicitly declared private here}} + }; + Foo::Foo() {} + + void test() { + Foo a; // expected-error {{calling a private constructor}} + } +} + +namespace test21 { + template <class T> class A { + void foo(); + void bar(); + class Inner; // expected-note {{implicitly declared private here}} + public: + void baz(); + }; + template <class T> class A<T>::Inner {}; + class B { + template <class T> class A<T>::Inner; // expected-error{{non-friend class member 'Inner' cannot have a qualified name}} + }; + + void test() { + A<int>::Inner i; // expected-error {{'Inner' is a private member}} + } +} + +namespace rdar8876150 { + struct A { operator bool(); }; + struct B : private A { using A::operator bool; }; + + bool f() { + B b; + return !b; + } +} + +namespace test23 { + template <typename T> class A { + A(); + static A instance; + }; + + template <typename T> A<T> A<T>::instance; + template class A<int>; +} |