| 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 | |
| 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 'E<F>::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 | |
| 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 | |
| 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'}} |
| 235 | template <typename T> void g() { f</*typename*/ S<T>::type(int())>(); } |
| 236 | |
| 237 | // Adding typename does fix the diagnostic. |
| 238 | template <typename T> void h() { f<typename S<T>::type(int())>(); } |
| 239 | |
| 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'}} |
| 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'}} |
| 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 | |
| 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 | |