1 | // RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s |
2 | |
3 | namespace Test1 { |
4 | |
5 | struct B { |
6 | virtual void f(int); |
7 | }; |
8 | |
9 | struct D : B { |
10 | virtual void f(long) override; // expected-error {{'f' marked 'override' but does not override any member functions}} |
11 | void f(int) override; |
12 | }; |
13 | } |
14 | |
15 | namespace Test2 { |
16 | |
17 | struct A { |
18 | virtual void f(int, char, int); |
19 | }; |
20 | |
21 | template<typename T> |
22 | struct B : A { |
23 | // FIXME: Diagnose this. |
24 | virtual void f(T) override; |
25 | }; |
26 | |
27 | template<typename T> |
28 | struct C : A { |
29 | virtual void f(int) override; // expected-error {{does not override}} |
30 | }; |
31 | |
32 | } |
33 | |
34 | namespace Test3 { |
35 | |
36 | struct A { |
37 | virtual void f(int, char, int); |
38 | }; |
39 | |
40 | template<typename... Args> |
41 | struct B : A { |
42 | virtual void f(Args...) override; // expected-error {{'f' marked 'override' but does not override any member functions}} |
43 | }; |
44 | |
45 | template struct B<int, char, int>; |
46 | template struct B<int>; // expected-note {{in instantiation of template class 'Test3::B<int>' requested here}} |
47 | |
48 | } |
49 | |
50 | namespace Test4 { |
51 | struct B { |
52 | virtual void f() const final; // expected-note {{overridden virtual function is here}} |
53 | }; |
54 | |
55 | struct D : B { |
56 | void f() const; // expected-error {{declaration of 'f' overrides a 'final' function}} |
57 | }; |
58 | |
59 | } |
60 | |
61 | namespace PR13499 { |
62 | struct X { |
63 | virtual void f(); |
64 | virtual void h(); |
65 | }; |
66 | template<typename T> struct A : X { |
67 | void f() override; |
68 | void h() final; |
69 | }; |
70 | template<typename T> struct B : X { |
71 | void g() override; // expected-error {{only virtual member functions can be marked 'override'}} |
72 | void i() final; // expected-error {{only virtual member functions can be marked 'final'}} |
73 | }; |
74 | B<int> b; // no-note |
75 | template<typename T> struct C : T { |
76 | void g() override; |
77 | void i() final; |
78 | }; |
79 | template<typename T> struct D : X { |
80 | virtual void g() override; // expected-error {{does not override}} |
81 | virtual void i() final; |
82 | }; |
83 | template<typename...T> struct E : X { |
84 | void f(T...) override; |
85 | void g(T...) override; // expected-error {{only virtual member functions can be marked 'override'}} |
86 | void h(T...) final; |
87 | void i(T...) final; // expected-error {{only virtual member functions can be marked 'final'}} |
88 | }; |
89 | // FIXME: Diagnose these in the template definition, not in the instantiation. |
90 | E<> e; // expected-note {{in instantiation of}} |
91 | |
92 | template<typename T> struct Y : T { |
93 | void f() override; |
94 | void h() final; |
95 | }; |
96 | template<typename T> struct Z : T { |
97 | void g() override; // expected-error {{only virtual member functions can be marked 'override'}} |
98 | void i() final; // expected-error {{only virtual member functions can be marked 'final'}} |
99 | }; |
100 | Y<X> y; |
101 | Z<X> z; // expected-note {{in instantiation of}} |
102 | } |
103 | |
104 | namespace MemberOfUnknownSpecialization { |
105 | template<typename T> struct A { |
106 | struct B {}; |
107 | struct C : B { |
108 | void f() override; |
109 | }; |
110 | }; |
111 | |
112 | template<> struct A<int>::B { |
113 | virtual void f(); |
114 | }; |
115 | // ok |
116 | A<int>::C c1; |
117 | |
118 | template<> struct A<char>::B { |
119 | void f(); |
120 | }; |
121 | // expected-error@-13 {{only virtual member functions can be marked 'override'}} |
122 | // expected-note@+1 {{in instantiation of}} |
123 | A<char>::C c2; |
124 | |
125 | template<> struct A<double>::B { |
126 | virtual void f() final; |
127 | }; |
128 | // expected-error@-20 {{declaration of 'f' overrides a 'final' function}} |
129 | // expected-note@-3 {{here}} |
130 | // expected-note@+1 {{in instantiation of}} |
131 | A<double>::C c3; |
132 | } |
133 | |
134 | namespace DiagnosticsQOI { |
135 | struct X { |
136 | virtual ~X(); |
137 | virtual void foo(int x); // expected-note {{hidden overloaded virtual function}} |
138 | virtual void bar(int x); // expected-note 2 {{hidden overloaded virtual function}} |
139 | virtual void bar(float x); // expected-note 2 {{hidden overloaded virtual function}} |
140 | }; |
141 | |
142 | struct Y : X { |
143 | void foo(int x, int y) override; // expected-error {{non-virtual member function marked 'override' hides virtual member function}} |
144 | void bar(double) override; // expected-error {{non-virtual member function marked 'override' hides virtual member functions}} |
145 | void bar(long double) final; // expected-error {{non-virtual member function marked 'final' hides virtual member functions}} |
146 | }; |
147 | |
148 | template<typename T> |
149 | struct Z : T { |
150 | static void foo() override; // expected-error {{only virtual member functions can be marked 'override'}} |
151 | }; |
152 | } |
153 | |