1 // RUN: %clang_cc1 -fsyntax-only -verify %s -Wno-unused
2 // RUN: %clang_cc1 -fsyntax-only -verify %s -Wno-unused -fms-compatibility -DMSVC
3 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s -Wno-unused
4 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s -Wno-unused -fms-compatibility -DMSVC
5 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s -Wno-unused
6 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s -Wno-unused -fms-compatibility -DMSVC
7 namespace N {
8 struct A {
9 typedef int type;
10 };
11
12 struct B {
13 };
14
15 struct C {
16 struct type { };
17 int type; // expected-note 2{{referenced member 'type' is declared here}}
18 };
19 }
20
21 int i;
22
23 typename N::A::type *ip1 = &i;
24 #if __cplusplus <= 199711L // C++03 or earlier modes
25 // expected-warning@-2 {{'typename' occurs outside of a template}}
26 #endif
27 typename N::B::type *ip2 = &i; // expected-error{{no type named 'type' in 'N::B'}}
28 #if __cplusplus <= 199711L
29 // expected-warning@-2 {{'typename' occurs outside of a template}}
30 #endif
31 typename N::C::type *ip3 = &i; // expected-error{{typename specifier refers to non-type member 'type'}}
32 #if __cplusplus <= 199711L
33 // expected-warning@-2 {{'typename' occurs outside of a template}}
34 #endif
35
test(double d)36 void test(double d) {
37 typename N::A::type f(typename N::A::type(a)); // expected-warning{{disambiguated as a function declaration}}
38 // expected-note@-1 {{add a pair of parentheses}}
39 #if __cplusplus <= 199711L
40 // expected-warning@-3 2{{'typename' occurs outside of a template}}
41 #endif
42 int five = f(5);
43
44 using namespace N;
45 for (typename A::type i = 0; i < 10; ++i)
46 #if __cplusplus <= 199711L
47 // expected-warning@-2 {{'typename' occurs outside of a template}}
48 #endif
49 five += 1;
50
51 const typename N::A::type f2(d);
52 #if __cplusplus <= 199711L
53 // expected-warning@-2 {{'typename' occurs outside of a template}}
54 #endif
55 }
56
57 namespace N {
58 template<typename T>
59 struct X {
60 typedef typename T::type type; // expected-error {{no type named 'type' in 'N::B'}} \
61 // expected-error {{no type named 'type' in 'B'}} \
62 // FIXME: location info for error above isn't very good \
63 // expected-error 2{{typename specifier refers to non-type member 'type'}} \
64 // expected-error{{type 'int' cannot be used prior to '::' because it has no members}}
65 };
66 }
67
68 N::X<N::A>::type *ip4 = &i;
69 N::X<N::B>::type *ip5 = &i; // expected-note{{in instantiation of template class 'N::X<N::B>' requested here}}
70 N::X<N::C>::type *ip6 = &i; // expected-note{{in instantiation of template class 'N::X<N::C>' requested here}}
71
72 N::X<int>::type fail1; // expected-note{{in instantiation of template class 'N::X<int>' requested here}}
73
74 template<typename T>
75 struct Y {
76 typedef typename N::X<T>::type *type; // expected-note{{in instantiation of template class 'N::X<B>' requested here}} \
77 // expected-note{{in instantiation of template class 'N::X<C>' requested here}}
78 };
79
80 struct A {
81 typedef int type;
82 };
83
84 struct B {
85 };
86
87 struct C {
88 struct type { };
89 int type; // expected-note{{referenced member 'type' is declared here}}
90 };
91
92 ::Y<A>::type ip7 = &i;
93 ::Y<B>::type ip8 = &i; // expected-note{{in instantiation of template class 'Y<B>' requested here}}
94 ::Y<C>::type ip9 = &i; // expected-note{{in instantiation of template class 'Y<C>' requested here}}
95
96 template<typename T> struct D {
97 typedef typename T::foo foo; // expected-error {{type 'long' cannot be used prior to '::' because it has no members}}
98 typedef typename foo::bar bar;
99 };
100
101 D<long> struct_D; // expected-note {{in instantiation of template class 'D<long>' requested here}}
102
103 template<typename T> struct E {
104 typedef typename T::foo foo;
105 typedef typename foo::bar bar; // expected-error {{type 'foo' (aka 'double') cannot be used prior to '::' because it has no members}}
106 };
107
108 struct F {
109 typedef double foo;
110 };
111
112 E<F> struct_E; // expected-note {{in instantiation of template class 'E<F>' requested here}}
113
114 template<typename T> struct G {
115 typedef typename T::foo foo;
116 typedef typename foo::bar bar;
117 };
118
119 struct H {
120 struct foo {
121 typedef double bar;
122 };
123 };
124
125 G<H> struct_G;
126
127 namespace PR10925 {
128 template< int mydim, typename Traits >
129 class BasicGeometry
130 {
131 typedef int some_type_t;
132 };
133
134 template<class ctype, int mydim, int coorddim>
135 class MockGeometry : BasicGeometry<mydim, int>{
136 using typename BasicGeometry<mydim, int>::operator[]; // expected-error {{typename is allowed for identifiers only}}
137 };
138 }
139
140
141 namespace missing_typename {
142 template <class T1, class T2> struct pair {}; // expected-note 7 {{template parameter is declared here}}
143
144 template <class T1, class T2>
145 struct map {
146 typedef T1* iterator;
147 };
148
149 template <class T>
150 class ExampleClass1 {
151 struct ExampleItem;
152
153
154 struct ExampleItemSet {
155 typedef ExampleItem* iterator;
156 ExampleItem* operator[](unsigned);
157 };
158
foo()159 void foo() {
160 #ifdef MSVC
161 // expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
162 #else
163 // expected-error@+2 {{template argument for template type parameter must be a type; did you forget 'typename'?}}
164 #endif
165 pair<ExampleItemSet::iterator, int> i;
166 pair<this->ExampleItemSet::iterator, int> i; // expected-error-re {{template argument for template type parameter must be a type{{$}}}}
167 pair<ExampleItemSet::operator[], int> i; // expected-error-re {{template argument for template type parameter must be a type{{$}}}}
168 }
169 #ifdef MSVC
170 // expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
171 #else
172 // expected-error@+2 {{template argument for template type parameter must be a type; did you forget 'typename'?}}
173 #endif
174 pair<ExampleItemSet::iterator, int> elt;
175
176
177 typedef map<int, ExampleItem*> ExampleItemMap;
178
bar()179 static void bar() {
180 #ifdef MSVC
181 // expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
182 #else
183 // expected-error@+2 {{template argument for template type parameter must be a type; did you forget 'typename'?}}
184 #endif
185 pair<ExampleItemMap::iterator, int> i;
186 }
187 #ifdef MSVC
188 // expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
189 #else
190 // expected-error@+2 {{template argument for template type parameter must be a type; did you forget 'typename'?}}
191 #endif
192 pair<ExampleItemMap::iterator, int> entry;
193 pair<bar, int> foobar; // expected-error {{template argument for template type parameter must be a type}}
194 };
195 } // namespace missing_typename
196
197 namespace missing_typename_and_base {
198 template <class T> struct Bar {}; // expected-note 1+ {{template parameter is declared here}}
199 template <typename T>
200 struct Foo : T {
201
202 // FIXME: MSVC accepts this code.
203 Bar<TypeInBase> x; // expected-error {{use of undeclared identifier 'TypeInBase'}}
204
205 #ifdef MSVC
206 // expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
207 #else
208 // expected-error@+2 {{must be a type; did you forget 'typename'?}}
209 #endif
210 Bar<T::TypeInBase> y;
211
212 #ifdef MSVC
213 // expected-warning@+4 {{omitted 'typename' is a Microsoft extension}}
214 #else
215 // expected-error@+2 {{must be a type; did you forget 'typename'?}}
216 #endif
217 Bar<T::NestedRD::TypeInNestedRD> z;
218
219 };
220 struct Base {
221 typedef int TypeInBase;
222 struct NestedRD {
223 typedef int TypeInNestedRD;
224 };
225 };
226 Foo<Base> x;
227 } // namespace missing_typename_and_base
228
229 namespace func_type_vs_construct_tmp {
230 template <typename> struct S { typedef int type; };
231 template <typename T> void f();
232 template <int N> void f();
233
234 // expected-error@+1 {{missing 'typename' prior to dependent type name 'S<int>::type'}}
g()235 template <typename T> void g() { f</*typename*/ S<T>::type(int())>(); }
236
237 // Adding typename does fix the diagnostic.
h()238 template <typename T> void h() { f<typename S<T>::type(int())>(); }
239
j()240 void j() {
241 g<int>(); // expected-note-re {{in instantiation {{.*}} requested here}}
242 h<int>();
243 }
244 } // namespace func_type_vs_construct_tmp
245
246 namespace pointer_vs_multiply {
247 int x;
248 // expected-error@+1 {{missing 'typename' prior to dependent type name 'B::type_or_int'}}
g()249 template <typename T> void g() { T::type_or_int * x; }
250 // expected-error@+1 {{typename specifier refers to non-type member 'type_or_int' in 'pointer_vs_multiply::A'}}
h()251 template <typename T> void h() { typename T::type_or_int * x; }
252
253 struct A { static const int type_or_int = 5; }; // expected-note {{referenced member 'type_or_int' is declared here}}
254 struct B { typedef int type_or_int; };
255
j()256 void j() {
257 g<A>();
258 g<B>(); // expected-note-re {{in instantiation {{.*}} requested here}}
259 h<A>(); // expected-note-re {{in instantiation {{.*}} requested here}}
260 h<B>();
261 }
262 } // namespace pointer_vs_multiply
263