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1 // RUN: %clang_cc1 -verify -std=c++11 -fms-extensions %s
2 
3 8gi///===--- recovery.cpp ---===// // expected-error {{unqualified-id}}
4 namespace Std { // expected-note {{here}}
5   typedef int Important;
6 }
7 
8 / redeclare as an inline namespace // expected-error {{unqualified-id}}
9 inline namespace Std { // expected-error {{cannot be reopened as inline}}
10   Important n;
11 } / end namespace Std // expected-error {{unqualified-id}}
12 int x;
13 Std::Important y;
14 
15 extenr "C" { // expected-error {{did you mean 'extern'}}
16   void f();
17 }
g()18 void g() {
19   z = 1; // expected-error {{undeclared}}
20   f();
21 }
22 
23 struct S {
24   int a, b, c;
25   S();
26   int x // expected-error {{expected ';'}}
27   friend void f()
28 };
S()29 8S::S() : a{ 5 }, b{ 6 }, c{ 2 } { // expected-error {{unqualified-id}}
30   return;
31 }
32 int k;
33 int l = k // expected-error {{expected ';'}}
34 constexpr int foo();
35 
36 5int m = { l }, n = m; // expected-error {{unqualified-id}}
37 
38 namespace MissingBrace {
39   struct S { // expected-error {{missing '}' at end of definition of 'MissingBrace::S'}}
40     int f();
41   // };
42 
43   namespace N { int g(); } // expected-note {{still within definition of 'MissingBrace::S' here}}
44 
45   int k1 = S().h(); // expected-error {{no member named 'h' in 'MissingBrace::S'}}
46   int k2 = S().f() + N::g();
47 
48   template<typename T> struct PR17949 { // expected-error {{missing '}' at end of definition of 'MissingBrace::PR17949'}}
49 
50   namespace X { // expected-note {{still within definition of 'MissingBrace::PR17949' here}}
51   }
52 }
53 
54 namespace N {
55   int
56 } // expected-error {{unqualified-id}}
57 
58 strcut Uuuu { // expected-error {{did you mean 'struct'}} \
59               // expected-note {{'Uuuu' declared here}}
60 } *u[3];
61 uuuu v; // expected-error {{did you mean 'Uuuu'}}
62 
63 struct Redefined { // expected-note {{previous}}
64   Redefined() {}
65 };
66 struct Redefined { // expected-error {{redefinition}}
67   Redefined() {}
68 };
69 
70 struct MissingSemi5;
71 namespace N {
72   typedef int afterMissingSemi4;
73   extern MissingSemi5 afterMissingSemi5;
74 }
75 
76 struct MissingSemi1 {} // expected-error {{expected ';' after struct}}
77 static int afterMissingSemi1();
78 
79 class MissingSemi2 {} // expected-error {{expected ';' after class}}
80 MissingSemi1 *afterMissingSemi2;
81 
82 enum MissingSemi3 {} // expected-error {{expected ';' after enum}}
83 ::MissingSemi1 afterMissingSemi3;
84 
85 extern N::afterMissingSemi4 afterMissingSemi4b;
86 union MissingSemi4 { MissingSemi4(int); } // expected-error {{expected ';' after union}}
87 N::afterMissingSemi4 (afterMissingSemi4b);
88 
89 int afterMissingSemi5b;
90 struct MissingSemi5 { MissingSemi5(int); } // ok, no missing ';' here
91 N::afterMissingSemi5 (afterMissingSemi5b);
92 
93 template<typename T> struct MissingSemiT {
94 } // expected-error {{expected ';' after struct}}
95 MissingSemiT<int> msi;
96 
97 struct MissingSemiInStruct {
98   struct Inner1 {} // expected-error {{expected ';' after struct}}
99   static MissingSemi5 ms1;
100 
101   struct Inner2 {} // ok, no missing ';' here
102   static MissingSemi1;
103 
104   struct Inner3 {} // expected-error {{expected ';' after struct}}
105   static MissingSemi5 *p;
106 };
107 
108 void MissingSemiInFunction() {
109   struct Inner1 {} // expected-error {{expected ';' after struct}}
110   if (true) {}
111 
112   // FIXME: It would be nice to at least warn on this.
113   struct Inner2 { Inner2(int); } // ok, no missing ';' here
114   k = l;
115 
116   struct Inner3 {} // expected-error {{expected ';' after struct}}
117   Inner1 i1;
118 
119   struct Inner4 {} // ok, no missing ';' here
120   Inner5;
121 }
122 
123 namespace NS {
124   template<typename T> struct Foo {};
125 }
126 struct MissingSemiThenTemplate1 {} // expected-error {{expected ';' after struct}}
127 NS::Foo<int> missingSemiBeforeFunctionReturningTemplateId1();
128 
129 using NS::Foo;
130 struct MissingSemiThenTemplate2 {} // expected-error {{expected ';' after struct}}
131 Foo<int> missingSemiBeforeFunctionReturningTemplateId2();
132 
133 namespace PR17084 {
134 enum class EnumID {};
135 template <typename> struct TempID;
136 template <> struct TempID<BadType> : BadType, EnumID::Garbage; // expected-error{{use of undeclared identifier 'BadType'}}
137 }
138 
139 namespace pr15133 {
140   namespace ns {
141     const int V1 = 1;   // expected-note {{declared here}}
142   }
143   struct C1 {
144     enum E1 { V2 = 2 }; // expected-note {{declared here}}
145     static const int V3 = 3; // expected-note {{declared here}}
146   };
147   enum E2 {
148     V4 = 4,   // expected-note {{declared here}}
149     V6        // expected-note {{declared here}}
150   };
151   enum class EC3 { V0 = 0, V5 = 5 }; // expected-note {{declared here}}
152   void func_3();
153 
154   void func_1(int x) {
155     switch(x) {
156     case 0: break;
157     case ns::V1:: break; // expected-error{{'V1' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
158     case C1::V2:: break; // expected-error{{'V2' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
159     case C1::V3:: break; // expected-error{{'V3' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
160     case V4:: break; // expected-error{{'V4' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
161     case V6:: func_3();   // expected-error{{'V6' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
162     }
163   }
164   void func_2(EC3 x) {
165     switch(x) {
166     case EC3::V0:  break;
167     case EC3::V5:: break; // expected-error{{'V5' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
168     }
169   }
170 
171   template<class T> struct TS1 {
172     typedef int A;
173   };
174   template<class T> void func(int x) {
175     switch(x) {
176     case TS1<T>::A:: break;  // expected-error{{expected unqualified-id}}
177     }
178   };
179   void mainf() {
180     func<int>(1);
181   }
182 
183   struct S {
184     static int n;  // expected-note{{declared here}}
185     int nn;        // expected-note 2 {{declared here}}
186   };
187 
188   int func_3(int x) {
189     return x ? S::n :: 0;  // expected-error{{'n' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
190   }
191   int func_4(int x, S &s) {
192     return x ? s.nn :: x;  // expected-error{{'nn' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
193   }
194   int func_5(int x, S &s) {
195     return x ? s.nn :: S::n;  // expected-error{{'nn' cannot appear before '::' because it is not a class, namespace, or enumeration; did you mean ':'?}}
196   }
197 
198   struct S2 {
199     struct S3;
200   };
201 
202   struct S2 :: S3 :: public S2 {  // expected-error{{'public' cannot be a part of nested name specifier; did you mean ':'?}}
203   };
204 }
205 
206 namespace InvalidEmptyNames {
207 // These shouldn't crash, the diagnostics aren't important.
208 struct ::, struct ::; // expected-error 2 {{expected identifier}} expected-error 2 {{declaration of anonymous struct must be a definition}} expected-warning {{declaration does not declare anything}}
209 enum ::, enum ::; // expected-error 2 {{expected identifier}} expected-warning {{declaration does not declare anything}}
210 struct ::__super, struct ::__super; // expected-error 2 {{expected identifier}} expected-error 2 {{expected '::' after '__super'}}
211 struct ::template foo, struct ::template bar; // expected-error 2 {{expected identifier}} expected-error 2 {{declaration of anonymous struct must be a definition}} expected-warning {{declaration does not declare anything}}
212 struct ::foo struct::; // expected-error {{no struct named 'foo' in the global namespace}} expected-error {{expected identifier}} expected-error {{declaration of anonymous struct must be a definition}}
213 class :: : {} a;  // expected-error {{expected identifier}} expected-error {{expected class name}}
214 }
215