| 1 | // RUN: %clang_cc1 -fsyntax-only -fcxx-exceptions -verify -std=c++11 %s |
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| 2 | |
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| 3 | class A { |
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| 4 | virtual void f(); |
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| 5 | virtual void g() = 0; // expected-note{{unimplemented pure virtual method 'g' in 'A'}} |
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| 6 | |
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| 7 | void h() = 0; // expected-error {{'h' is not virtual and cannot be declared pure}} |
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| 8 | void i() = 1; // expected-error {{initializer on function does not look like a pure-specifier}} |
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| 9 | void j() = 0u; // expected-error {{initializer on function does not look like a pure-specifier}} |
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| 10 | |
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| 11 | |
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| 12 | void k(); |
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| 13 | |
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| 14 | public: |
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| 15 | A(int); |
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| 16 | }; |
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| 17 | |
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| 18 | virtual void A::k() { } // expected-error{{'virtual' can only be specified inside the class definition}} |
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| 19 | |
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| 20 | class B : public A { |
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| 21 | // Needs to recognize that overridden function is virtual. |
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| 22 | void g() = 0; |
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| 23 | |
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| 24 | // Needs to recognize that function does not override. |
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| 25 | void g(int) = 0; // expected-error{{'g' is not virtual and cannot be declared pure}} |
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| 26 | }; |
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| 27 | |
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| 28 | // Needs to recognize invalid uses of abstract classes. |
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| 29 | A fn(A) // expected-error{{parameter type 'A' is an abstract class}} \ |
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| 30 | // expected-error{{return type 'A' is an abstract class}} |
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| 31 | { |
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| 32 | A a; // expected-error{{variable type 'A' is an abstract class}} |
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| 33 | (void)static_cast<A>(0); // expected-error{{allocating an object of abstract class type 'A'}} |
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| 34 | try { |
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| 35 | } catch(A) { // expected-error{{variable type 'A' is an abstract class}} |
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| 36 | } |
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| 37 | } |
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| 38 | |
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| 39 | namespace rdar9670557 { |
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| 40 | typedef int func(int); |
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| 41 | func *a(); |
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| 42 | struct X { |
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| 43 | virtual func f = 0; |
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| 44 | virtual func (g) = 0; |
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| 45 | func *h = 0; |
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| 46 | }; |
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| 47 | } |
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| 48 | |
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| 49 | namespace pr8264 { |
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| 50 | struct Test { |
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| 51 | virtual virtual void func(); // expected-warning {{duplicate 'virtual' declaration specifier}} |
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| 52 | }; |
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| 53 | } |
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| 54 | |
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| 55 | namespace VirtualFriend { |
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| 56 | // DR (filed but no number yet): reject meaningless pure-specifier on a friend declaration. |
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| 57 | struct A { virtual int f(); }; |
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| 58 | struct B { friend int A::f() = 0; }; // expected-error {{friend declaration cannot have a pure-specifier}} |
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| 59 | struct C { |
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| 60 | virtual int f(); |
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| 61 | friend int C::f() = 0; // expected-error {{friend declaration cannot have a pure-specifier}} |
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| 62 | }; |
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| 63 | } |
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| 64 | |
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