1// RUN: %clang_cc1 -fsyntax-only -std=c++98 -verify -fblocks %s
2namespace 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; // expected-note {{'ax' declared here}}
12  void Af();
13}
14
15A:: ; // expected-error {{expected unqualified-id}}
16::A::ax::undef ex3; // expected-error {{'ax' is not a class, namespace, or enumeration}}
17A::undef1::undef2 ex4; // expected-error {{no member named 'undef1'}}
18
19int A::C::Ag1() { return 0; }
20
21static int A::C::Ag2() { return 0; } // expected-error{{'static' can}}
22
23int A::C::cx = 17;
24
25
26static int A::C::cx2 = 17; // expected-error{{'static' can}}
27
28class C2 {
29  void m(); // expected-note{{member declaration does not match because it is not const qualified}}
30
31  void f(const int& parm); // expected-note{{type of 1st parameter of member declaration does not match definition ('const int &' vs 'int')}}
32  void f(int) const; // expected-note{{member declaration does not match because it is const qualified}}
33  void f(float);
34
35  int x;
36};
37
38void C2::m() const { } // expected-error{{out-of-line definition of 'm' does not match any declaration in 'C2'}}
39
40void C2::f(int) { } // expected-error{{out-of-line definition of 'f' does not match any declaration in 'C2'}}
41
42void C2::m() {
43  x = 0;
44}
45
46namespace B {
47  void ::A::Af() {} // expected-error {{cannot define or redeclare 'Af' here because namespace 'B' does not enclose namespace 'A'}}
48}
49
50void f1() {
51  void A::Af(); // expected-error {{definition or redeclaration of 'Af' not allowed inside a function}}
52  void (^x)() = ^{ void A::Af(); }; // expected-error {{definition or redeclaration of 'Af' not allowed inside a block}}
53}
54
55void f2() {
56  A:: ; // expected-error {{expected unqualified-id}}
57  A::C::undef = 0; // expected-error {{no member named 'undef'}}
58  ::A::C::cx = 0;
59  int x = ::A::ax = A::C::cx;
60  x = sizeof(A::C);
61  x = sizeof(::A::C::cx);
62}
63
64A::C c1;
65struct A::C c2;
66struct S : public A::C {};
67struct A::undef; // expected-error {{no struct named 'undef' in namespace 'A'}}
68
69namespace A2 {
70  typedef int INT;
71  struct RC;
72  struct CC {
73    struct NC;
74  };
75}
76
77struct A2::RC {
78  INT x;
79};
80
81struct A2::CC::NC {
82  void m() {}
83};
84
85void f3() {
86  N::x = 0; // expected-error {{use of undeclared identifier 'N'}}
87  // FIXME: Consider including the kind of entity that 'N' is ("variable 'N'
88  // declared here", "template 'X' declared here", etc) to help explain what it
89  // is if it's 'not a class, namespace, or scoped enumeration'.
90  int N; // expected-note {{'N' declared here}}
91  N::x = 0; // expected-error {{'N' is not a class, namespace, or enumeration}}
92  { int A;           A::ax = 0; }
93  { typedef int A;   A::ax = 0; } // expected-error{{'A' (aka 'int') is not a class, namespace, or enumeration}}
94  { typedef A::C A;  A::ax = 0; } // expected-error {{no member named 'ax'}}
95  { typedef A::C A;  A::cx = 0; }
96}
97
98// make sure the following doesn't hit any asserts
99void f4(undef::C); // expected-error {{use of undeclared identifier 'undef'}}
100
101typedef void C2::f5(int); // expected-error{{typedef declarator cannot be qualified}}
102
103void f6(int A2::RC::x); // expected-error{{parameter declarator cannot be qualified}}
104
105int A2::RC::x; // expected-error{{non-static data member defined out-of-line}}
106
107void A2::CC::NC::m(); // expected-error{{out-of-line declaration of a member must be a definition}}
108
109
110namespace E {
111  int X = 5;
112
113  namespace Nested {
114    enum E {
115      X = 0
116    };
117
118    int f() {
119      return E::X; // expected-warning{{use of enumeration in a nested name specifier is a C++11 extension}}
120    }
121  }
122}
123
124
125class Operators {
126  Operators operator+(const Operators&) const; // expected-note{{member declaration does not match because it is const qualified}}
127  operator bool();
128};
129
130Operators Operators::operator+(const Operators&) { // expected-error{{out-of-line definition of 'operator+' does not match any declaration in 'Operators'}}
131  Operators ops;
132  return ops;
133}
134
135Operators Operators::operator+(const Operators&) const {
136  Operators ops;
137  return ops;
138}
139
140Operators::operator bool() {
141  return true;
142}
143
144namespace A {
145  void g(int&); // expected-note{{type of 1st parameter of member declaration does not match definition ('int &' vs 'const int &')}}
146}
147
148void A::f() {} // expected-error-re{{out-of-line definition of 'f' does not match any declaration in namespace 'A'{{$}}}}
149
150void A::g(const int&) { } // expected-error{{out-of-line definition of 'g' does not match any declaration in namespace 'A'}}
151
152struct Struct { };
153
154void Struct::f() { } // expected-error{{out-of-line definition of 'f' does not match any declaration in 'Struct'}}
155
156void global_func(int);
157void global_func2(int);
158
159namespace N {
160  void ::global_func(int) { } // expected-error{{definition or redeclaration of 'global_func' cannot name the global scope}}
161
162  void f();
163  // FIXME: if we move this to a separate definition of N, things break!
164}
165void ::global_func2(int) { } // expected-warning{{extra qualification on member 'global_func2'}}
166
167void N::f() { } // okay
168
169struct Y;  // expected-note{{forward declaration of 'Y'}}
170Y::foo y; // expected-error{{incomplete type 'Y' named in nested name specifier}}
171
172X::X() : a(5) { } // expected-error{{use of undeclared identifier 'X'}}
173
174struct foo_S {
175  static bool value;
176};
177bool (foo_S::value);
178
179
180namespace somens {
181  struct a { }; // expected-note{{candidate constructor (the implicit copy constructor)}}
182}
183
184template <typename T>
185class foo {
186};
187
188
189// PR4452 / PR4451
190foo<somens:a> a2;  // expected-error {{unexpected ':' in nested name specifier}}
191
192somens::a a3 = a2; // expected-error {{no viable conversion}}
193
194// typedefs and using declarations.
195namespace test1 {
196  namespace ns {
197    class Counter { public: static int count; };
198    typedef Counter counter;
199  }
200  using ns::counter;
201
202  class Test {
203    void test1() {
204      counter c;
205      c.count++;
206      counter::count++;
207    }
208  };
209}
210
211// We still need to do lookup in the lexical scope, even if we push a
212// non-lexical scope.
213namespace test2 {
214  namespace ns {
215    extern int *count_ptr;
216  }
217  namespace {
218    int count = 0;
219  }
220
221  int *ns::count_ptr = &count;
222}
223
224// PR6259, invalid case
225namespace test3 {
226  class A; // expected-note {{forward declaration}}
227  void foo(const char *path) {
228    A::execute(path); // expected-error {{incomplete type 'test3::A' named in nested name specifier}}
229  }
230}
231
232namespace PR7133 {
233  namespace A {
234    class Foo;
235  }
236
237  namespace A {
238    namespace B {
239      bool foo(Foo &);
240    }
241  }
242
243  bool A::B::foo(Foo &) {
244    return false;
245  }
246}
247
248class CLASS {
249  void CLASS::foo2(); // expected-error {{extra qualification on member 'foo2'}}
250};
251
252namespace PR8159 {
253  class B { };
254
255  class A {
256    int A::a; // expected-error{{extra qualification on member 'a'}}
257    static int A::b; // expected-error{{extra qualification on member 'b'}}
258    int ::c; // expected-error{{non-friend class member 'c' cannot have a qualified name}}
259  };
260}
261
262namespace rdar7980179 {
263  class A { void f0(); }; // expected-note {{previous}}
264  int A::f0() {} // expected-error {{return type of out-of-line definition of 'rdar7980179::A::f0' differs}}
265}
266
267namespace alias = A;
268double *dp = (alias::C*)0; // expected-error{{cannot initialize a variable of type 'double *' with an rvalue of type 'alias::C *'}}
269
270// http://llvm.org/PR10109
271namespace PR10109 {
272template<typename T>
273struct A {
274protected:
275  struct B;
276  struct B::C; // expected-error {{requires a template parameter list}} \
277               // expected-error {{no struct named 'C'}} \
278    // expected-error{{non-friend class member 'C' cannot have a qualified name}}
279};
280
281template<typename T>
282struct A2 {
283protected:
284  struct B;
285};
286template <typename T>
287struct A2<T>::B::C; // expected-error {{no struct named 'C'}}
288}
289
290namespace PR13033 {
291namespace NS {
292 int a; // expected-note {{'NS::a' declared here}}
293 int longer_b; //expected-note {{'NS::longer_b' declared here}}
294}
295
296// Suggest adding a namespace qualifier to both variable names even though one
297// is only a single character long.
298int foobar = a + longer_b; // expected-error {{use of undeclared identifier 'a'; did you mean 'NS::a'?}} \
299                           // expected-error {{use of undeclared identifier 'longer_b'; did you mean 'NS::longer_b'?}}
300}
301
302// <rdar://problem/13853540>
303namespace N {
304  struct X { };
305  namespace N {
306    struct Foo {
307      struct N::X *foo(); // expected-error{{no struct named 'X' in namespace 'N::N'}}
308    };
309  }
310}
311
312namespace TypedefNamespace { typedef int F; };
313TypedefNamespace::F::NonexistentName BadNNSWithCXXScopeSpec; // expected-error {{'F' (aka 'int') is not a class, namespace, or enumeration}}
314
315namespace PR18587 {
316
317struct C1 {
318  int a, b, c;
319  typedef int C2;
320  struct B1 {
321    struct B2 {
322      int a, b, c;
323    };
324  };
325};
326struct C2 { static const unsigned N1 = 1; };
327struct B1 {
328  enum E1 { B2 = 2 };
329  static const int B3 = 3;
330};
331const int N1 = 2;
332
333// Function declarators
334struct S1a { int f(C1::C2); };
335struct S1b { int f(C1:C2); };  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
336
337struct S2a {
338  C1::C2 f(C1::C2);
339};
340struct S2c {
341  C1::C2 f(C1:C2);  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
342};
343
344struct S3a {
345  int f(C1::C2), C2 : N1;
346  int g : B1::B2;
347};
348struct S3b {
349  int g : B1:B2;  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
350};
351
352// Inside square brackets
353struct S4a {
354  int f[C2::N1];
355};
356struct S4b {
357  int f[C2:N1];  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
358};
359
360struct S5a {
361  int f(int xx[B1::B3 ? C2::N1 : B1::B2]);
362};
363struct S5b {
364  int f(int xx[B1::B3 ? C2::N1 : B1:B2]);  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
365};
366struct S5c {
367  int f(int xx[B1:B3 ? C2::N1 : B1::B2]);  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
368};
369
370// Bit fields
371struct S6a {
372  C1::C2 m1 : B1::B2;
373};
374struct S6c {
375  C1::C2 m1 : B1:B2;  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
376};
377struct S6d {
378  int C2:N1;
379};
380struct S6e {
381  static const int N = 3;
382  B1::E1 : N;
383};
384struct S6g {
385  C1::C2 : B1:B2;  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
386  B1::E1 : B1:B2;  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
387};
388
389// Template parameters
390template <int N> struct T1 {
391  int a,b,c;
392  static const unsigned N1 = N;
393  typedef unsigned C1;
394};
395T1<C2::N1> var_1a;
396T1<C2:N1> var_1b;  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
397template<int N> int F() {}
398int (*X1)() = (B1::B2 ? F<1> : F<2>);
399int (*X2)() = (B1:B2 ? F<1> : F<2>);  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
400
401// Bit fields + templates
402struct S7a {
403  T1<B1::B2>::C1 m1 : T1<B1::B2>::N1;
404};
405struct S7b {
406  T1<B1:B2>::C1 m1 : T1<B1::B2>::N1;  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
407};
408struct S7c {
409  T1<B1::B2>::C1 m1 : T1<B1:B2>::N1;  // expected-error{{unexpected ':' in nested name specifier; did you mean '::'?}}
410};
411
412}
413
414namespace PR16951 {
415  namespace ns {
416    enum an_enumeration {
417      ENUMERATOR  // expected-note{{'ENUMERATOR' declared here}}
418    };
419  }
420
421  int x1 = ns::an_enumeration::ENUMERATOR; // expected-warning{{use of enumeration in a nested name specifier is a C++11 extension}}
422
423  int x2 = ns::an_enumeration::ENUMERATOR::vvv; // expected-warning{{use of enumeration in a nested name specifier is a C++11 extension}} \
424                                                // expected-error{{'ENUMERATOR' is not a class, namespace, or enumeration}} \
425
426  int x3 = ns::an_enumeration::X; // expected-warning{{use of enumeration in a nested name specifier is a C++11 extension}} \
427                                  // expected-error{{no member named 'X'}}
428
429  enum enumerator_2 {
430    ENUMERATOR_2
431  };
432
433  int x4 = enumerator_2::ENUMERATOR_2; // expected-warning{{use of enumeration in a nested name specifier is a C++11 extension}}
434  int x5 = enumerator_2::X2; // expected-warning{{use of enumeration in a nested name specifier is a C++11 extension}} \
435                             // expected-error{{no member named 'X2' in 'PR16951::enumerator_2'}}
436
437}
438