1 // RUN: %clang_cc1 -fsyntax-only -std=c++98 -verify -fblocks %s
2 namespace A {
3   struct C {
4     static int cx;
5 
6     static int cx2;
7 
8     static int Ag1();
9     static int Ag2();
10   };
11   int ax;
12   void Af();
13 }
14 
15 A:: ; // expected-error {{expected unqualified-id}}
16 // FIXME: there is a member 'ax'; it's just not a class.
17 ::A::ax::undef ex3; // expected-error {{no member named 'ax'}}
18 A::undef1::undef2 ex4; // expected-error {{no member named 'undef1'}}
19 
20 int A::C::Ag1() { return 0; }
21 
22 static int A::C::Ag2() { return 0; } // expected-error{{'static' can}}
23 
24 int A::C::cx = 17;
25 
26 
27 static int A::C::cx2 = 17; // expected-error{{'static' can}}
28 
29 class C2 {
30   void m(); // expected-note{{member declaration does not match because it is not const qualified}}
31 
32   void f(const int& parm); // expected-note{{type of 1st parameter of member declaration does not match definition ('const int &' vs 'int')}}
33   void f(int) const; // expected-note{{member declaration does not match because it is const qualified}}
34   void f(float);
35 
36   int x;
37 };
38 
39 void C2::m() const { } // expected-error{{out-of-line definition of 'm' does not match any declaration in 'C2'}}
40 
41 void C2::f(int) { } // expected-error{{out-of-line definition of 'f' does not match any declaration in 'C2'}}
42 
43 void C2::m() {
44   x = 0;
45 }
46 
47 namespace B {
48   void ::A::Af() {} // expected-error {{cannot define or redeclare 'Af' here because namespace 'B' does not enclose namespace 'A'}}
49 }
50 
51 void f1() {
52   void A::Af(); // expected-error {{definition or redeclaration of 'Af' not allowed inside a function}}
53   void (^x)() = ^{ void A::Af(); }; // expected-error {{definition or redeclaration of 'Af' not allowed inside a block}}
54 }
55 
56 void f2() {
57   A:: ; // expected-error {{expected unqualified-id}}
58   A::C::undef = 0; // expected-error {{no member named 'undef'}}
59   ::A::C::cx = 0;
60   int x = ::A::ax = A::C::cx;
61   x = sizeof(A::C);
62   x = sizeof(::A::C::cx);
63 }
64 
65 A::C c1;
66 struct A::C c2;
67 struct S : public A::C {};
68 struct A::undef; // expected-error {{no struct named 'undef' in namespace 'A'}}
69 
70 namespace A2 {
71   typedef int INT;
72   struct RC;
73   struct CC {
74     struct NC;
75   };
76 }
77 
78 struct A2::RC {
79   INT x;
80 };
81 
82 struct A2::CC::NC {
83   void m() {}
84 };
85 
86 void f3() {
87   N::x = 0; // expected-error {{use of undeclared identifier 'N'}}
88   // FIXME: Consider including the kind of entity that 'N' is ("variable 'N'
89   // declared here", "template 'X' declared here", etc) to help explain what it
90   // is if it's 'not a class, namespace, or scoped enumeration'.
91   int N; // expected-note {{'N' declared here}}
92   N::x = 0; // expected-error {{'N' is not a class, namespace, or scoped enumeration}}
93   { int A;           A::ax = 0; }
94   { typedef int A;   A::ax = 0; } // expected-error{{'A' (aka 'int') is not a class, namespace, or scoped enumeration}}
95   { typedef A::C A;  A::ax = 0; } // expected-error {{no member named 'ax'}}
96   { typedef A::C A;  A::cx = 0; }
97 }
98 
99 // make sure the following doesn't hit any asserts
100 void f4(undef::C); // expected-error {{use of undeclared identifier 'undef'}}
101 
102 typedef void C2::f5(int); // expected-error{{typedef declarator cannot be qualified}}
103 
104 void f6(int A2::RC::x); // expected-error{{parameter declarator cannot be qualified}}
105 
106 int A2::RC::x; // expected-error{{non-static data member defined out-of-line}}
107 
108 void A2::CC::NC::m(); // expected-error{{out-of-line declaration of a member must be a definition}}
109 
110 
111 namespace E {
112   int X = 5;
113 
114   namespace Nested {
115     enum E {
116       X = 0
117     };
118 
119     void f() {
120       return E::X; // expected-error{{'E::Nested::E' is not a class, namespace, or scoped enumeration}}
121     }
122   }
123 }
124 
125 
126 class Operators {
127   Operators operator+(const Operators&) const; // expected-note{{member declaration does not match because it is const qualified}}
128   operator bool();
129 };
130 
131 Operators Operators::operator+(const Operators&) { // expected-error{{out-of-line definition of 'operator+' does not match any declaration in 'Operators'}}
132   Operators ops;
133   return ops;
134 }
135 
136 Operators Operators::operator+(const Operators&) const {
137   Operators ops;
138   return ops;
139 }
140 
141 Operators::operator bool() {
142   return true;
143 }
144 
145 namespace A {
146   void g(int&); // expected-note{{type of 1st parameter of member declaration does not match definition ('int &' vs 'const int &')}}
147 }
148 
149 void A::f() {} // expected-error-re{{out-of-line definition of 'f' does not match any declaration in namespace 'A'{{$}}}}
150 
151 void A::g(const int&) { } // expected-error{{out-of-line definition of 'g' does not match any declaration in namespace 'A'}}
152 
153 struct Struct { };
154 
155 void Struct::f() { } // expected-error{{out-of-line definition of 'f' does not match any declaration in 'Struct'}}
156 
157 void global_func(int);
158 void global_func2(int);
159 
160 namespace N {
161   void ::global_func(int) { } // expected-error{{definition or redeclaration of 'global_func' cannot name the global scope}}
162 
163   void f();
164   // FIXME: if we move this to a separate definition of N, things break!
165 }
166 void ::global_func2(int) { } // expected-warning{{extra qualification on member 'global_func2'}}
167 
168 void N::f() { } // okay
169 
170 struct Y;  // expected-note{{forward declaration of 'Y'}}
171 Y::foo y; // expected-error{{incomplete type 'Y' named in nested name specifier}}
172 
173 X::X() : a(5) { } // expected-error{{use of undeclared identifier 'X'}}
174 
175 struct foo_S {
176   static bool value;
177 };
178 bool (foo_S::value);
179 
180 
181 namespace somens {
182   struct a { }; // expected-note{{candidate constructor (the implicit copy constructor)}}
183 }
184 
185 template <typename T>
186 class foo {
187 };
188 
189 
190 // PR4452 / PR4451
191 foo<somens:a> a2;  // expected-error {{unexpected ':' in nested name specifier}}
192 
193 somens::a a3 = a2; // expected-error {{no viable conversion}}
194 
195 // typedefs and using declarations.
196 namespace test1 {
197   namespace ns {
198     class Counter { public: static int count; };
199     typedef Counter counter;
200   }
201   using ns::counter;
202 
203   class Test {
204     void test1() {
205       counter c;
206       c.count++;
207       counter::count++;
208     }
209   };
210 }
211 
212 // We still need to do lookup in the lexical scope, even if we push a
213 // non-lexical scope.
214 namespace test2 {
215   namespace ns {
216     extern int *count_ptr;
217   }
218   namespace {
219     int count = 0;
220   }
221 
222   int *ns::count_ptr = &count;
223 }
224 
225 // PR6259, invalid case
226 namespace test3 {
227   class A; // expected-note {{forward declaration}}
228   void foo(const char *path) {
229     A::execute(path); // expected-error {{incomplete type 'test3::A' named in nested name specifier}}
230   }
231 }
232 
233 namespace PR7133 {
234   namespace A {
235     class Foo;
236   }
237 
238   namespace A {
239     namespace B {
240       bool foo(Foo &);
241     }
242   }
243 
244   bool A::B::foo(Foo &) {
245     return false;
246   }
247 }
248 
249 class CLASS {
250   void CLASS::foo2(); // expected-error {{extra qualification on member 'foo2'}}
251 };
252 
253 namespace PR8159 {
254   class B { };
255 
256   class A {
257     int A::a; // expected-error{{extra qualification on member 'a'}}
258     static int A::b; // expected-error{{extra qualification on member 'b'}}
259     int ::c; // expected-error{{non-friend class member 'c' cannot have a qualified name}}
260   };
261 }
262 
263 namespace rdar7980179 {
264   class A { void f0(); }; // expected-note {{previous}}
265   int A::f0() {} // expected-error {{return type of out-of-line definition of 'rdar7980179::A::f0' differs}}
266 }
267 
268 namespace alias = A;
269 double *dp = (alias::C*)0; // expected-error{{cannot initialize a variable of type 'double *' with an rvalue of type 'alias::C *'}}
270 
271 // http://llvm.org/PR10109
272 namespace PR10109 {
273 template<typename T>
274 struct A {
275 protected:
276   struct B;
277   struct B::C; // expected-error {{requires a template parameter list}} \
278                // expected-error {{no struct named 'C'}} \
279     // expected-error{{non-friend class member 'C' cannot have a qualified name}}
280 };
281 
282 template<typename T>
283 struct A2 {
284 protected:
285   struct B;
286 };
287 template <typename T>
288 struct A2<T>::B::C; // expected-error {{no struct named 'C'}}
289 }
290 
291 namespace PR13033 {
292 namespace NS {
293  int a; // expected-note {{'NS::a' declared here}}
294  int longer_b; //expected-note {{'NS::longer_b' declared here}}
295 }
296 
297 // Suggest adding a namespace qualifier to both variable names even though one
298 // is only a single character long.
299 int foobar = a + longer_b; // expected-error {{use of undeclared identifier 'a'; did you mean 'NS::a'?}} \
300                            // expected-error {{use of undeclared identifier 'longer_b'; did you mean 'NS::longer_b'?}}
301 }
302 
303 // <rdar://problem/13853540>
304 namespace N {
305   struct X { };
306   namespace N {
307     struct Foo {
308       struct N::X *foo(); // expected-error{{no struct named 'X' in namespace 'N::N'}}
309     };
310   }
311 }
312 
313 namespace TypedefNamespace { typedef int F; };
314 TypedefNamespace::F::NonexistentName BadNNSWithCXXScopeSpec; // expected-error {{'F' (aka 'int') is not a class, namespace, or scoped enumeration}}
315