llvm-project/clang/test/SemaCXX/access-base-class.cpp
John McCall a332b953e8 When elevating access along an inheritance path, initialize the computed
access to the (elevated) access of the accessed declaration, if applicable,
rather than plunking that access onto the end after we've calculated the
inheritance access.

Also, being a friend of a derived class gives you public access to its
members (subject to later modification by further inheritance);  it does
not simply ignore a single location of restricted inheritance.

Also, when computing the best unprivileged path to a subobject, preserve
the information that the worst path might be AS_none (forbidden) rather
than a minimum of AS_private.

llvm-svn: 98899
2010-03-18 23:49:19 +00:00

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1.4 KiB
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// RUN: %clang_cc1 -fsyntax-only -faccess-control -verify %s
namespace T1 {
class A { };
class B : private A { }; // expected-note {{declared private here}}
void f(B* b) {
A *a = b; // expected-error{{cannot cast 'T1::B' to its private base class 'T1::A'}}
}
}
namespace T2 {
class A { };
class B : A { }; // expected-note {{implicitly declared private here}}
void f(B* b) {
A *a = b; // expected-error {{cannot cast 'T2::B' to its private base class 'T2::A'}}
}
}
namespace T3 {
class A { };
class B : public A { };
void f(B* b) {
A *a = b;
}
}
namespace T4 {
class A {};
class B : private virtual A {};
class C : public virtual A {};
class D : public B, public C {};
void f(D *d) {
// This takes the D->C->B->A path.
A *a = d;
}
}
namespace T5 {
class A {};
class B : private A {
void f(B *b) {
A *a = b;
}
};
}
namespace T6 {
class C;
class A {};
class B : private A { // expected-note {{declared private here}} expected-note {{constrained by private inheritance here}}
void f(C* c);
};
class C : public B {
void f(C *c) {
A* a = c; // expected-error {{cannot cast 'T6::C' to its private base class 'T6::A'}} \
// expected-error {{'A' is a private member of 'T6::A'}}
}
};
void B::f(C *c) {
A *a = c;
}
}
namespace T7 {
class A {};
class B : public A {};
class C : private B {
void f(C *c) {
A* a = c; // okay
}
};
}