| 1 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s |
| 2 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
| 3 | |
| 4 | extern "C" { void f(bool); } |
| 5 | |
| 6 | namespace std { |
| 7 | using ::f; |
| 8 | inline void f() { return f(true); } |
| 9 | } |
| 10 | |
| 11 | namespace M { |
| 12 | void f(float); |
| 13 | } |
| 14 | |
| 15 | namespace N { |
| 16 | using M::f; |
| 17 | void f(int) { } // expected-note{{previous}} |
| 18 | |
| 19 | void f(int) { } // expected-error{{redefinition}} |
| 20 | } |
| 21 | |
| 22 | namespace N { |
| 23 | void f(double); |
| 24 | void f(long); |
| 25 | } |
| 26 | |
| 27 | struct X0 { |
| 28 | void operator()(int); |
| 29 | void operator()(long); |
| 30 | }; |
| 31 | |
| 32 | struct X1 : X0 { |
| 33 | void operator()(float&); |
| 34 | using X0::operator(); |
| 35 | |
| 36 | void test() { |
| 37 | (*this)(1); |
| 38 | } |
| 39 | }; |
| 40 | |
| 41 | struct A { void f(); }; |
| 42 | struct B : A { }; |
| 43 | class C : B { using B::f; }; |
| 44 | |
| 45 | // PR5751: Resolve overloaded functions through using decls. |
| 46 | namespace O { |
| 47 | void f(int i); |
| 48 | void f(double d); |
| 49 | } |
| 50 | namespace P { |
| 51 | void f(); |
| 52 | void g(void (*ptr)(int)); |
| 53 | using O::f; |
| 54 | void test() { |
| 55 | f(); |
| 56 | f(1); |
| 57 | void (*f_ptr1)(double) = f; |
| 58 | void (*f_ptr2)() = f; |
| 59 | g(f); |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | // Make sure that ADL can find names brought in by using decls. |
| 64 | namespace test0 { |
| 65 | namespace ns { |
| 66 | class Foo {}; |
| 67 | |
| 68 | namespace inner { |
| 69 | void foo(char *); // expected-note {{no known conversion}} |
| 70 | } |
| 71 | |
| 72 | using inner::foo; |
| 73 | } |
| 74 | |
| 75 | void test(ns::Foo *p) { |
| 76 | foo(*p); // expected-error {{no matching function for call to 'foo'}} |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | // Redeclarations! |
| 81 | namespace test1 { |
| 82 | namespace ns0 { struct Foo {}; } |
| 83 | namespace A { void foo(ns0::Foo *p, int y, int z); } |
| 84 | namespace ns2 { using A::foo; } |
| 85 | namespace ns1 { struct Bar : ns0::Foo {}; } |
| 86 | namespace A { void foo(ns0::Foo *p, int y, int z = 0); } // expected-note {{candidate}} |
| 87 | namespace ns1 { using A::foo; } |
| 88 | namespace ns2 { struct Baz : ns1::Bar {}; } |
| 89 | namespace A { void foo(ns0::Foo *p, int y = 0, int z); } |
| 90 | |
| 91 | void test(ns2::Baz *p) { |
| 92 | foo(p, 0, 0); // okay! |
| 93 | foo(p, 0); // should be fine! |
| 94 | foo(p); // expected-error {{no matching function}} |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | namespace test2 { |
| 99 | namespace ns { int foo; } |
| 100 | template <class T> using ns::foo; // expected-error {{cannot template a using declaration}} |
| 101 | |
| 102 | // PR8022 |
| 103 | struct A { |
| 104 | template <typename T> void f(T); |
| 105 | }; |
| 106 | class B : A { |
| 107 | template <typename T> using A::f<T>; // expected-error {{cannot template a using declaration}} |
| 108 | }; |
| 109 | } |
| 110 | |
| 111 | // PR8756 |
| 112 | namespace foo |
| 113 | { |
| 114 | class Class1; // expected-note{{forward declaration}} |
| 115 | class Class2 |
| 116 | { |
| 117 | using ::foo::Class1::Function; // expected-error{{incomplete type 'foo::Class1' named in nested name specifier}} |
| 118 | }; |
| 119 | } |
| 120 | |
| 121 | // Don't suggest non-typenames for positions requiring typenames. |
| 122 | namespace using_suggestion_tyname_val { |
| 123 | namespace N { void FFF() {} } |
| 124 | using typename N::FFG; // expected-error {{no member named 'FFG' in namespace 'using_suggestion_tyname_val::N'}} |
| 125 | } |
| 126 | |
| 127 | namespace using_suggestion_member_tyname_val { |
| 128 | class CCC { public: void AAA() { } }; |
| 129 | class DDD : public CCC { public: using typename CCC::AAB; }; // expected-error {{no member named 'AAB' in 'using_suggestion_member_tyname_val::CCC'}} |
| 130 | } |
| 131 | |
| 132 | namespace using_suggestion_tyname_val_dropped_specifier { |
| 133 | void FFF() {} |
| 134 | namespace N { } |
| 135 | using typename N::FFG; // expected-error {{no member named 'FFG' in namespace 'using_suggestion_tyname_val_dropped_specifier::N'}} |
| 136 | } |
| 137 | |
| 138 | // Currently hints aren't provided to drop out the incorrect M::. |
| 139 | namespace using_suggestion_ty_dropped_nested_specifier { |
| 140 | namespace N { |
| 141 | class AAA {}; // expected-note {{'N::AAA' declared here}} |
| 142 | namespace M { } |
| 143 | } |
| 144 | using N::M::AAA; // expected-error {{no member named 'AAA' in namespace 'using_suggestion_ty_dropped_nested_specifier::N::M'; did you mean 'N::AAA'?}} |
| 145 | } |
| 146 | |
| 147 | namespace using_suggestion_tyname_ty_dropped_nested_specifier { |
| 148 | namespace N { |
| 149 | class AAA {}; // expected-note {{'N::AAA' declared here}} |
| 150 | namespace M { } |
| 151 | } |
| 152 | using typename N::M::AAA; // expected-error {{no member named 'AAA' in namespace 'using_suggestion_tyname_ty_dropped_nested_specifier::N::M'; did you mean 'N::AAA'?}} |
| 153 | } |
| 154 | |
| 155 | namespace using_suggestion_val_dropped_nested_specifier { |
| 156 | namespace N { |
| 157 | void FFF() {} // expected-note {{'N::FFF' declared here}} |
| 158 | namespace M { } |
| 159 | } |
| 160 | using N::M::FFF; // expected-error {{no member named 'FFF' in namespace 'using_suggestion_val_dropped_nested_specifier::N::M'; did you mean 'N::FFF'?}} |
| 161 | } |
| 162 | |
| 163 | namespace UsingDeclVsHiddenName { |
| 164 | namespace A { |
| 165 | enum HiddenTag1 {}; // expected-note {{previous use is here}} |
| 166 | enum HiddenTag2 {}; // expected-note {{target}} |
| 167 | int HiddenFn1; // expected-note {{target}} |
| 168 | int HiddenFn2; // expected-note {{target}} |
| 169 | int HiddenLocalExtern1; |
| 170 | int HiddenLocalExtern2; |
| 171 | } |
| 172 | |
| 173 | namespace B { |
| 174 | using A::HiddenTag1; |
| 175 | using A::HiddenFn1; // expected-note {{using declaration}} |
| 176 | using A::HiddenLocalExtern1; |
| 177 | |
| 178 | struct S { |
| 179 | friend struct HiddenTag1; // expected-error {{tag type that does not match previous}} |
| 180 | friend struct HiddenTag2; // expected-note {{conflicting declaration}} |
| 181 | friend void HiddenFn1(); // expected-error {{cannot befriend target of using declaration}} |
| 182 | friend void HiddenFn2(); // expected-note {{conflicting declaration}} |
| 183 | void f() { |
| 184 | // OK, these are not in the scope of namespace B, even though they're |
| 185 | // members of the namespace. |
| 186 | void HiddenLocalExtern1(); |
| 187 | void HiddenLocalExtern2(); |
| 188 | } |
| 189 | }; |
| 190 | |
| 191 | using A::HiddenTag2; // expected-error {{conflicts with declaration already in scope}} |
| 192 | using A::HiddenFn2; // expected-error {{conflicts with declaration already in scope}} |
| 193 | using A::HiddenLocalExtern2; |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | namespace PR19171 { |
| 198 | struct Z { |
| 199 | Z(); |
| 200 | }; |
| 201 | |
| 202 | typedef struct { |
| 203 | Z i; |
| 204 | } S; |
| 205 | |
| 206 | struct Y : S { |
| 207 | using S::S; |
| 208 | #if __cplusplus < 201103L |
| 209 | // expected-error@-2 {{no member named 'S' in 'PR19171::S'}} |
| 210 | #endif |
| 211 | }; |
| 212 | |
| 213 | // [namespace.udecl]p3: In a using-declaration used as a member-declaration, |
| 214 | // the nested-name-specifier shall name a base class of the class being defined. |
| 215 | // If such a using-declaration names a constructor, the nested-name-specifier |
| 216 | // shall name a direct base class of the class being defined; |
| 217 | |
| 218 | struct B_blah { }; |
| 219 | struct C_blah : B_blah { C_blah(int); }; // expected-note 0-1{{declared here}} |
| 220 | struct D1 : C_blah { |
| 221 | // FIXME: We should be able to correct this in C++11 mode. |
| 222 | using B_blah::C_blah; // expected-error-re {{no member named 'C_blah' in 'PR19171::B_blah'{{$}}}} |
| 223 | }; |
| 224 | struct D2 : C_blah { |
| 225 | // Somewhat bizarrely, this names the injected-class-name of B_blah within |
| 226 | // C_blah, and is valid. |
| 227 | using C_blah::B_blah; |
| 228 | }; |
| 229 | struct D3 : C_blah { |
| 230 | using C_blah::D_blah; |
| 231 | #if __cplusplus < 201103L |
| 232 | // expected-error-re@-2 {{no member named 'D_blah' in 'PR19171::C_blah'{{$}}}} |
| 233 | #else |
| 234 | // expected-error@-4 {{no member named 'D_blah' in 'PR19171::C_blah'; did you mean 'C_blah'?}} |
| 235 | #endif |
| 236 | }; |
| 237 | #if __cplusplus >= 201103L |
| 238 | D3 d3(0); // ok |
| 239 | #endif |
| 240 | |
| 241 | struct E { }; |
| 242 | struct EE { int EE; }; |
| 243 | struct F : E { |
| 244 | using E::EE; // expected-error-re {{no member named 'EE' in 'PR19171::E'{{$}}}} |
| 245 | }; |
| 246 | |
| 247 | struct TypoDuplicate { // expected-note 0-4{{here}} |
| 248 | TypoDuplicate(int); |
| 249 | void foobar(); // expected-note 2{{here}} |
| 250 | }; |
| 251 | struct TypoDuplicateDerived1 : TypoDuplicate { |
| 252 | #if __cplusplus >= 201103L |
| 253 | using TypoDuplicate::TypoFuplicate; // expected-error {{did you mean 'TypoDuplicate'}} expected-note {{previous}} |
| 254 | using TypoDuplicate::TypoDuplicate; // expected-error {{redeclaration}} |
| 255 | #endif |
| 256 | using TypoDuplicate::goobar; // expected-error {{did you mean 'foobar'}} expected-note {{previous}} |
| 257 | using TypoDuplicate::foobar; // expected-error {{redeclaration}} |
| 258 | }; |
| 259 | struct TypoDuplicateDerived2 : TypoDuplicate { |
| 260 | #if __cplusplus >= 201103L |
| 261 | using TypoFuplicate::TypoDuplicate; // expected-error {{did you mean 'TypoDuplicate'}} expected-note {{previous}} |
| 262 | using TypoDuplicate::TypoDuplicate; // expected-error {{redeclaration}} |
| 263 | #endif |
| 264 | }; |
| 265 | struct TypoDuplicateDerived3 : TypoDuplicate { |
| 266 | #if __cplusplus >= 201103L |
| 267 | // FIXME: Don't suggest a correction that would lead to a redeclaration |
| 268 | // error here... or at least diagnose the error. |
| 269 | using TypoDuplicate::TypoDuplicate; |
| 270 | using TypoDuplicate::TypoFuplicate; // expected-error {{did you mean 'TypoDuplicate'}} |
| 271 | #endif |
| 272 | using TypoDuplicate::foobar; |
| 273 | using TypoDuplicate::goobar; // expected-error {{did you mean 'foobar'}} |
| 274 | }; |
| 275 | struct TypoDuplicateDerived4 : TypoDuplicate { |
| 276 | #if __cplusplus >= 201103L |
| 277 | using TypoDuplicate::TypoDuplicate; // expected-note {{previous}} |
| 278 | using TypoFuplicate::TypoDuplicate; // expected-error {{did you mean 'TypoDuplicate'}} expected-error {{redeclaration}} |
| 279 | #endif |
| 280 | }; |
| 281 | } |
| 282 | |
| 283 | namespace TypoCorrectTemplateMember { |
| 284 | struct A { |
| 285 | template<typename T> void foobar(T); // expected-note {{'foobar' declared here}} |
| 286 | }; |
| 287 | struct B : A { |
| 288 | using A::goobar; // expected-error {{no member named 'goobar' in 'TypoCorrectTemplateMember::A'; did you mean 'foobar'?}} |
| 289 | }; |
| 290 | } |
| 291 | |
| 292 | namespace use_instance_in_static { |
| 293 | struct A { int n; }; |
| 294 | struct B : A { |
| 295 | using A::n; |
| 296 | static int f() { return n; } // expected-error {{invalid use of member 'n' in static member function}} |
| 297 | }; |
| 298 | } |
| 299 | |
| 300 | namespace PR24030 { |
| 301 | namespace X { |
| 302 | class A; // expected-note {{target}} |
| 303 | int i; // expected-note {{target}} |
| 304 | } |
| 305 | namespace Y { |
| 306 | using X::A; // expected-note {{using}} |
| 307 | using X::i; // expected-note {{using}} |
| 308 | class A {}; // expected-error {{conflicts}} |
| 309 | int i; // expected-error {{conflicts}} |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | namespace PR24033 { |
| 314 | extern int a; // expected-note 2{{target of using declaration}} |
| 315 | void f(); // expected-note 2{{target of using declaration}} |
| 316 | struct s; // expected-note 2{{target of using declaration}} |
| 317 | enum e {}; // expected-note 2{{target of using declaration}} |
| 318 | |
| 319 | template<typename> extern int vt; // expected-note 2{{target of using declaration}} expected-warning 0-1{{extension}} |
| 320 | template<typename> void ft(); // expected-note 2{{target of using declaration}} |
| 321 | template<typename> struct st; // expected-note 2{{target of using declaration}} |
| 322 | |
| 323 | namespace X { |
| 324 | using PR24033::a; // expected-note {{using declaration}} |
| 325 | using PR24033::f; // expected-note {{using declaration}} |
| 326 | using PR24033::s; // expected-note {{using declaration}} |
| 327 | using PR24033::e; // expected-note {{using declaration}} |
| 328 | |
| 329 | using PR24033::vt; // expected-note {{using declaration}} |
| 330 | using PR24033::ft; // expected-note {{using declaration}} |
| 331 | using PR24033::st; // expected-note {{using declaration}} |
| 332 | |
| 333 | extern int a; // expected-error {{declaration conflicts with target of using declaration already in scope}} |
| 334 | void f(); // expected-error {{declaration conflicts with target of using declaration already in scope}} |
| 335 | struct s; // expected-error {{declaration conflicts with target of using declaration already in scope}} |
| 336 | enum e {}; // expected-error {{declaration conflicts with target of using declaration already in scope}} |
| 337 | |
| 338 | template<typename> extern int vt; // expected-error {{declaration conflicts with target of using declaration already in scope}} expected-warning 0-1{{extension}} |
| 339 | template<typename> void ft(); // expected-error {{declaration conflicts with target of using declaration already in scope}} |
| 340 | template<typename> struct st; // expected-error {{declaration conflicts with target of using declaration already in scope}} |
| 341 | } |
| 342 | |
| 343 | namespace Y { |
| 344 | extern int a; // expected-note {{conflicting declaration}} |
| 345 | void f(); // expected-note {{conflicting declaration}} |
| 346 | struct s; // expected-note {{conflicting declaration}} |
| 347 | enum e {}; // expected-note {{conflicting declaration}} |
| 348 | |
| 349 | template<typename> extern int vt; // expected-note {{conflicting declaration}} expected-warning 0-1{{extension}} |
| 350 | template<typename> void ft(); // expected-note {{conflicting declaration}} |
| 351 | template<typename> struct st; // expected-note {{conflicting declaration}} |
| 352 | |
| 353 | using PR24033::a; // expected-error {{target of using declaration conflicts with declaration already in scope}} |
| 354 | using PR24033::f; // expected-error {{target of using declaration conflicts with declaration already in scope}} |
| 355 | using PR24033::s; // expected-error {{target of using declaration conflicts with declaration already in scope}} |
| 356 | using PR24033::e; // expected-error {{target of using declaration conflicts with declaration already in scope}} |
| 357 | |
| 358 | using PR24033::vt; // expected-error {{target of using declaration conflicts with declaration already in scope}} |
| 359 | using PR24033::ft; // expected-error {{target of using declaration conflicts with declaration already in scope}} |
| 360 | using PR24033::st; // expected-error {{target of using declaration conflicts with declaration already in scope}} |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | namespace field_use { |
| 365 | struct A { int field; }; |
| 366 | struct B : A { |
| 367 | // Previously Clang rejected this valid C++11 code because it didn't look |
| 368 | // through the UsingShadowDecl. |
| 369 | using A::field; |
| 370 | #if __cplusplus < 201103L |
| 371 | // expected-error@+2 {{invalid use of non-static data member 'field'}} |
| 372 | #endif |
| 373 | enum { X = sizeof(field) }; |
| 374 | }; |
| 375 | } |
| 376 | |
| 377 | namespace tag_vs_var { |
| 378 | namespace N { |
| 379 | struct X {}; |
| 380 | |
| 381 | struct Y {}; |
| 382 | int Y; |
| 383 | |
| 384 | int Z; |
| 385 | } |
| 386 | using N::X; |
| 387 | using N::Y; |
| 388 | using N::Z; |
| 389 | |
| 390 | namespace N { |
| 391 | int X; |
| 392 | |
| 393 | struct Z {}; |
| 394 | } |
| 395 | using N::X; |
| 396 | using N::Y; |
| 397 | using N::Z; |
| 398 | } |
| 399 | |