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