llvm-project/clang/test/CXX/class.access/p6.cpp

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// RUN: %clang_cc1 -fsyntax-only -verify %s
// C++0x [class.access]p6:
// All access controls in [class.access] affect the ability to
// access a class member name from a particular scope. For purposes
// of access control, the base-specifiers of a class and the
// definitions of class members that appear outside of the class
// definition are considered to be within the scope of that
// class. In particular, access controls apply as usual to member
// names accessed as part of a function return type, even though it
// is not possible to determine the access privileges of that use
// without first parsing the rest of the function
// declarator. Similarly, access control for implicit calls to the
// constructors, the conversion functions, or the destructor called
// to create and destroy a static data member is performed as if
// these calls appeared in the scope of the member's class.
struct Public {}; struct Protected {}; struct Private {};
namespace test0 {
class A {
typedef int type; // expected-note {{declared private here}}
type foo();
};
A::type foo() { } // expected-error {{'type' is a private member}}
A::type A::foo() { }
}
// conversion decls
namespace test1 {
class A {
public:
A();
operator Public ();
A(Public);
protected:
operator Protected (); // expected-note {{declared protected here}}
A(Protected); // expected-note {{declared protected here}}
private:
operator Private (); // expected-note {{declared private here}}
A(Private); // expected-note {{declared private here}}
};
void test() {
A a;
Public pub = a;
Protected prot = a; // expected-error {{'operator Protected' is a protected member}}
Private priv = a; // expected-error {{'operator Private' is a private member}}
A apub = pub;
A aprot = prot; // expected-error {{protected constructor}}
A apriv = priv; // expected-error {{private constructor}}
}
}
// PR6967
namespace test2 {
class A {
public:
template <class T> static void set(T &t, typename T::type v) {
t.value = v;
}
template <class T> static typename T::type get(const T &t) {
return t.value;
}
};
class B {
friend class A;
private:
typedef int type;
type value;
};
int test() {
B b;
A::set(b, 0);
return A::get(b);
}
}
namespace test3 {
class Green {}; class Blue {};
// We have to wrap this in a class because a partial specialization
// isn't actually in the context of the template.
struct Outer {
template <class T, class Nat> class A {
};
};
template <class T> class Outer::A<T, typename T::nature> {
public:
static void foo(); // expected-note {{'Outer::A<B, Green>::foo' declared here}}
};
class B {
private: typedef Green nature;
friend class Outer;
};
void test() {
Outer::A<B, Green>::foo();
Outer::A<B, Blue>::foo(); // expected-error {{no member named 'foo' in 'test3::Outer::A<test3::B, test3::Blue>'; did you mean 'Outer::A<B, Green>::foo'?}}
}
}
namespace test4 {
template <class T> class A {
private: typedef int type;
template <class U> friend void foo(U &, typename U::type);
};
template <class U> void foo(U &, typename U::type) {}
void test() {
A<int> a;
foo(a, 0);
}
}
// PR7644
namespace test5 {
class A {
enum Enum { E0, E1, E2 }; // expected-note 4 {{declared private here}}
template <Enum> void foo();
template <Enum> class bar;
};
template <A::Enum en> void A::foo() {}
template <A::Enum en> class A::bar {};
template <A::Enum en> void foo() {} // expected-error {{'Enum' is a private member of 'test5::A'}}
template <A::Enum en> class bar {}; // expected-error {{'Enum' is a private member of 'test5::A'}}
class B {
template <A::Enum en> void foo() {} // expected-error {{'Enum' is a private member of 'test5::A'}}
template <A::Enum en> class bar {}; // expected-error {{'Enum' is a private member of 'test5::A'}}
};
}
namespace test6 {
class A {
public: class public_inner {};
protected: class protected_inner {};
private: class private_inner {}; // expected-note {{declared private here}}
};
class B : A {
public_inner a;
protected_inner b;
private_inner c; // expected-error {{'private_inner' is a private member of 'test6::A'}}
};
}
// PR9229
namespace test7 {
void foo(int arg[1]);
class A {
void check();
};
class B {
friend class A;
A ins;
};
void A::check() {
void foo(int arg[__builtin_offsetof(B, ins)]);
}
}
// rdar://problem/10155256
namespace test8 {
class A {
typedef void* (A::*UnspecifiedBoolType)() const;
operator UnspecifiedBoolType() const; // expected-note {{implicitly declared private here}}
};
void test(A &a) {
if (a) return; // expected-error-re {{'operator void *(test8::A::*)(){{( __attribute__\(\(thiscall\)\))?}} const' is a private member of 'test8::A'}}
}
}
namespace test9 {
class A {
operator char*() const; // expected-note {{implicitly declared private here}}
};
void test(A &a) {
delete a; // expected-error {{'operator char *' is a private member of 'test9::A'}}
}
}