| 1 | // RUN: %clang_cc1 -verify %s |
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| 2 | |
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| 3 | namespace test0 { |
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| 4 | struct A { |
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| 5 | static int x; |
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| 6 | }; |
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| 7 | struct B : A {}; |
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| 8 | struct C : B {}; |
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| 9 | |
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| 10 | int test() { |
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| 11 | return A::x |
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| 12 | + B::x |
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| 13 | + C::x; |
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| 14 | } |
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| 15 | } |
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| 16 | |
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| 17 | namespace test1 { |
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| 18 | struct A { |
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| 19 | private: static int x; // expected-note 5 {{declared private here}} |
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| 20 | static int test() { return x; } |
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| 21 | }; |
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| 22 | struct B : public A { |
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| 23 | static int test() { return x; } // expected-error {{private member}} |
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| 24 | }; |
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| 25 | struct C : private A { |
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| 26 | static int test() { return x; } // expected-error {{private member}} |
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| 27 | }; |
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| 28 | |
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| 29 | struct D { |
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| 30 | public: static int x; // expected-note{{member is declared here}} |
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| 31 | static int test() { return x; } |
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| 32 | }; |
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| 33 | struct E : private D { // expected-note{{constrained by private inheritance}} |
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| 34 | static int test() { return x; } |
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| 35 | }; |
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| 36 | |
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| 37 | int test() { |
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| 38 | return A::x // expected-error {{private member}} |
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| 39 | + B::x // expected-error {{private member}} |
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| 40 | + C::x // expected-error {{private member}} |
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| 41 | + D::x |
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| 42 | + E::x; // expected-error {{private member}} |
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| 43 | } |
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| 44 | } |
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| 45 | |
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| 46 | namespace test2 { |
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| 47 | class A { |
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| 48 | protected: static int x; // expected-note{{member is declared here}} |
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| 49 | }; |
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| 50 | |
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| 51 | class B : private A {}; // expected-note {{private inheritance}} |
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| 52 | class C : private A { |
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| 53 | int test(B *b) { |
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| 54 | return b->x; // expected-error {{private member}} |
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| 55 | } |
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| 56 | }; |
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| 57 | } |
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| 58 | |
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| 59 | namespace test3 { |
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| 60 | class A { |
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| 61 | protected: static int x; |
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| 62 | }; |
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| 63 | |
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| 64 | class B : public A {}; |
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| 65 | class C : private A { |
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| 66 | int test(B *b) { |
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| 67 | // x is accessible at C when named in A. |
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| 68 | // A is an accessible base of B at C. |
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| 69 | // Therefore this succeeds. |
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| 70 | return b->x; |
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| 71 | } |
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| 72 | }; |
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| 73 | } |
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| 74 | |
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| 75 | // Don't crash. <rdar://12926092> |
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| 76 | // Note that 'field' is indeed a private member of X but that access |
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| 77 | // is indeed ultimately constrained by the protected inheritance from Y. |
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| 78 | // If someone wants to put the effort into improving this diagnostic, |
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| 79 | // they can feel free; even explaining it in person would be a pain. |
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| 80 | namespace test4 { |
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| 81 | class Z; |
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| 82 | class X { |
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| 83 | public: |
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| 84 | void f(Z *p); |
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| 85 | |
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| 86 | private: |
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| 87 | int field; // expected-note {{member is declared here}} |
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| 88 | }; |
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| 89 | |
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| 90 | class Y : public X { }; |
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| 91 | class Z : protected Y { }; // expected-note 2 {{constrained by protected inheritance here}} |
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| 92 | |
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| 93 | void X::f(Z *p) { |
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| 94 | p->field = 0; // expected-error {{cannot cast 'test4::Z' to its protected base class 'test4::X'}} expected-error {{'field' is a private member of 'test4::X'}} |
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| 95 | } |
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| 96 | } |
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| 97 | |
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| 98 | // TODO: flesh out these cases |
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| 99 | |
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