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+// 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>;
+}