1 // RUN: %clang_cc1 -pedantic -Wall -Wno-comment -verify -fcxx-exceptions -x c++ %s 2 // RUN: not %clang_cc1 -fsyntax-only -fdiagnostics-parseable-fixits -x c++ %s 2>&1 | FileCheck %s 3 // RUN: cp %s %t 4 // RUN: not %clang_cc1 -pedantic -Wall -Wno-comment -fcxx-exceptions -fixit -x c++ %t 5 // RUN: %clang_cc1 -fsyntax-only -pedantic -Wall -Werror -Wno-comment -fcxx-exceptions -x c++ %t 6 7 /* This is a test of the various code modification hints that are 8 provided as part of warning or extension diagnostics. All of the 9 warnings will be fixed by -fixit, and the resulting file should 10 compile cleanly with -Werror -pedantic. */ 11 12 struct C1 { 13 virtual void f(); 14 static void g(); 15 }; 16 struct C2 : virtual public virtual C1 { }; // expected-error{{duplicate}} 17 18 virtual void C1::f() { } // expected-error{{'virtual' can only be specified inside the class definition}} 19 20 static void C1::g() { } // expected-error{{'static' can only be specified inside the class definition}} 21 22 template<int Value> struct CT { }; // expected-note{{previous use is here}} 23 24 CT<10 >> 2> ct; // expected-warning{{require parentheses}} 25 26 class C3 { 27 public: 28 C3(C3, int i = 0); // expected-error{{copy constructor must pass its first argument by reference}} 29 }; 30 31 struct CT<0> { }; // expected-error{{'template<>'}} 32 33 template<> union CT<1> { }; // expected-error{{tag type}} 34 35 // Access declarations 36 class A { 37 protected: 38 int foo(); 39 }; 40 41 class B : public A { 42 A::foo; // expected-warning{{access declarations are deprecated}} 43 }; 44 45 void f() throw(); // expected-note{{previous}} 46 void f(); // expected-warning{{missing exception specification}} 47 48 namespace rdar7853795 { 49 struct A { 50 bool getNumComponents() const; // expected-note{{declared here}} 51 void dump() const { 52 getNumComponenets(); // expected-error{{use of undeclared identifier 'getNumComponenets'; did you mean 'getNumComponents'?}} 53 } 54 }; 55 } 56 57 namespace rdar7796492 { 58 struct A { int x, y; A(); }; 59 60 A::A() 61 : x(1) y(2) { // expected-error{{missing ',' between base or member initializers}} 62 } 63 64 } 65 66 // extra qualification on member 67 class C { 68 int C::foo(); // expected-error {{extra qualification}} 69 }; 70 71 namespace rdar8488464 { 72 int x = 0; 73 int x1 &= 0; // expected-error {{invalid '&=' at end of declaration; did you mean '='?}} 74 int x2 *= 0; // expected-error {{invalid '*=' at end of declaration; did you mean '='?}} 75 int x3 += 0; // expected-error {{invalid '+=' at end of declaration; did you mean '='?}} 76 int x4 -= 0; // expected-error {{invalid '-=' at end of declaration; did you mean '='?}} 77 int x5 != 0; // expected-error {{invalid '!=' at end of declaration; did you mean '='?}} 78 int x6 /= 0; // expected-error {{invalid '/=' at end of declaration; did you mean '='?}} 79 int x7 %= 0; // expected-error {{invalid '%=' at end of declaration; did you mean '='?}} 80 int x8 <= 0; // expected-error {{invalid '<=' at end of declaration; did you mean '='?}} 81 int x9 <<= 0; // expected-error {{invalid '<<=' at end of declaration; did you mean '='?}} 82 int x10 >= 0; // expected-error {{invalid '>=' at end of declaration; did you mean '='?}} 83 int x11 >>= 0; // expected-error {{invalid '>>=' at end of declaration; did you mean '='?}} 84 int x12 ^= 0; // expected-error {{invalid '^=' at end of declaration; did you mean '='?}} 85 int x13 |= 0; // expected-error {{invalid '|=' at end of declaration; did you mean '='?}} 86 int x14 == 0; // expected-error {{invalid '==' at end of declaration; did you mean '='?}} 87 88 void f() { 89 int x = 0; 90 (void)x; 91 int x1 &= 0; // expected-error {{invalid '&=' at end of declaration; did you mean '='?}} 92 (void)x1; 93 int x2 *= 0; // expected-error {{invalid '*=' at end of declaration; did you mean '='?}} 94 (void)x2; 95 int x3 += 0; // expected-error {{invalid '+=' at end of declaration; did you mean '='?}} 96 (void)x3; 97 int x4 -= 0; // expected-error {{invalid '-=' at end of declaration; did you mean '='?}} 98 (void)x4; 99 int x5 != 0; // expected-error {{invalid '!=' at end of declaration; did you mean '='?}} 100 (void)x5; 101 int x6 /= 0; // expected-error {{invalid '/=' at end of declaration; did you mean '='?}} 102 (void)x6; 103 int x7 %= 0; // expected-error {{invalid '%=' at end of declaration; did you mean '='?}} 104 (void)x7; 105 int x8 <= 0; // expected-error {{invalid '<=' at end of declaration; did you mean '='?}} 106 (void)x8; 107 int x9 <<= 0; // expected-error {{invalid '<<=' at end of declaration; did you mean '='?}} 108 (void)x9; 109 int x10 >= 0; // expected-error {{invalid '>=' at end of declaration; did you mean '='?}} 110 (void)x10; 111 int x11 >>= 0; // expected-error {{invalid '>>=' at end of declaration; did you mean '='?}} 112 (void)x11; 113 int x12 ^= 0; // expected-error {{invalid '^=' at end of declaration; did you mean '='?}} 114 (void)x12; 115 int x13 |= 0; // expected-error {{invalid '|=' at end of declaration; did you mean '='?}} 116 (void)x13; 117 int x14 == 0; // expected-error {{invalid '==' at end of declaration; did you mean '='?}} 118 (void)x14; 119 if (int x = 0) { (void)x; } 120 if (int x1 &= 0) { (void)x1; } // expected-error {{invalid '&=' at end of declaration; did you mean '='?}} 121 if (int x2 *= 0) { (void)x2; } // expected-error {{invalid '*=' at end of declaration; did you mean '='?}} 122 if (int x3 += 0) { (void)x3; } // expected-error {{invalid '+=' at end of declaration; did you mean '='?}} 123 if (int x4 -= 0) { (void)x4; } // expected-error {{invalid '-=' at end of declaration; did you mean '='?}} 124 if (int x5 != 0) { (void)x5; } // expected-error {{invalid '!=' at end of declaration; did you mean '='?}} 125 if (int x6 /= 0) { (void)x6; } // expected-error {{invalid '/=' at end of declaration; did you mean '='?}} 126 if (int x7 %= 0) { (void)x7; } // expected-error {{invalid '%=' at end of declaration; did you mean '='?}} 127 if (int x8 <= 0) { (void)x8; } // expected-error {{invalid '<=' at end of declaration; did you mean '='?}} 128 if (int x9 <<= 0) { (void)x9; } // expected-error {{invalid '<<=' at end of declaration; did you mean '='?}} 129 if (int x10 >= 0) { (void)x10; } // expected-error {{invalid '>=' at end of declaration; did you mean '='?}} 130 if (int x11 >>= 0) { (void)x11; } // expected-error {{invalid '>>=' at end of declaration; did you mean '='?}} 131 if (int x12 ^= 0) { (void)x12; } // expected-error {{invalid '^=' at end of declaration; did you mean '='?}} 132 if (int x13 |= 0) { (void)x13; } // expected-error {{invalid '|=' at end of declaration; did you mean '='?}} 133 if (int x14 == 0) { (void)x14; } // expected-error {{invalid '==' at end of declaration; did you mean '='?}} 134 } 135 } 136 137 template <class A> 138 class F1 { 139 public: 140 template <int B> 141 class Iterator { 142 }; 143 }; 144 145 template<class T> 146 class F2 { 147 typename F1<T>:: /*template*/ Iterator<0> Mypos; // expected-error {{use 'template' keyword to treat 'Iterator' as a dependent template name}} 148 }; 149 150 template <class T> 151 void f(){ 152 typename F1<T>:: /*template*/ Iterator<0> Mypos; // expected-error {{use 'template' keyword to treat 'Iterator' as a dependent template name}} 153 } 154 155 // Tests for &/* fixits radar 7113438. 156 class AD {}; 157 class BD: public AD {}; 158 159 void test (BD &br) { 160 AD* aPtr; 161 BD b; 162 aPtr = b; // expected-error {{assigning to 'AD *' from incompatible type 'BD'; take the address with &}} 163 aPtr = br; // expected-error {{assigning to 'AD *' from incompatible type 'BD'; take the address with &}} 164 } 165 166 void foo1() const {} // expected-error {{non-member function cannot have 'const' qualifier}} 167 void foo2() volatile {} // expected-error {{non-member function cannot have 'volatile' qualifier}} 168 void foo3() const volatile {} // expected-error {{non-member function cannot have 'const volatile' qualifier}} 169 170 struct S { void f(int, char); }; 171 int itsAComma, 172 itsAComma2 = 0, 173 oopsAComma(42), // expected-error {{expected ';' at end of declaration}} 174 AD oopsMoreCommas() { 175 static int n = 0, // expected-error {{expected ';' at end of declaration}} 176 static char c, 177 &d = c, // expected-error {{expected ';' at end of declaration}} 178 S s, // expected-error {{expected ';' at end of declaration}} 179 s.f(n, d); 180 AD ad, // expected-error {{expected ';' at end of declaration}} 181 return ad; 182 } 183 struct MoreAccidentalCommas { 184 int a : 5, 185 b : 7, 186 : 4, // expected-error {{expected ';' at end of declaration}} 187 char c, // expected-error {{expected ';' at end of declaration}} 188 double d, // expected-error {{expected ';' at end of declaration}} 189 MoreAccidentalCommas *next, // expected-error {{expected ';' at end of declaration}} 190 public: 191 int k, // expected-error {{expected ';' at end of declaration}} 192 friend void f(MoreAccidentalCommas) {} 193 int k2, // expected-error {{expected ';' at end of declaration}} 194 virtual void g(), // expected-error {{expected ';' at end of declaration}} 195 }; 196 197 template<class T> struct Mystery; 198 template<class T> typedef Mystery<T>::type getMysteriousThing() { // \ 199 expected-error {{function definition declared 'typedef'}} \ 200 expected-error {{missing 'typename' prior to dependent}} 201 return Mystery<T>::get(); 202 } 203 204 template<template<typename> Foo, // expected-error {{template template parameter requires 'class' after the parameter list}} 205 template<typename> typename Bar, // expected-error {{template template parameter requires 'class' after the parameter list}} 206 template<typename> struct Baz> // expected-error {{template template parameter requires 'class' after the parameter list}} 207 void func(); 208 209 namespace ShadowedTagType { 210 class Foo { 211 public: 212 enum Bar { X, Y }; 213 void SetBar(Bar bar); 214 Bar Bar(); // expected-note 2 {{enum 'Bar' is hidden by a non-type declaration of 'Bar' here}} 215 private: 216 Bar bar_; // expected-error {{must use 'enum' tag to refer to type 'Bar' in this scope}} 217 }; 218 void Foo::SetBar(Bar bar) { bar_ = bar; } // expected-error {{must use 'enum' tag to refer to type 'Bar' in this scope}} 219 } 220 221 #define NULL __null 222 char c = NULL; // expected-warning {{implicit conversion of NULL constant to 'char'}} 223 double dbl = NULL; // expected-warning {{implicit conversion of NULL constant to 'double'}} 224 225 namespace arrow_suggest { 226 227 template <typename T> 228 class wrapped_ptr { 229 public: 230 wrapped_ptr(T* ptr) : ptr_(ptr) {} 231 T* operator->() { return ptr_; } 232 private: 233 T *ptr_; 234 }; 235 236 class Worker { 237 public: 238 void DoSomething(); 239 }; 240 241 void test() { 242 wrapped_ptr<Worker> worker(new Worker); 243 worker.DoSomething(); // expected-error {{no member named 'DoSomething' in 'arrow_suggest::wrapped_ptr<arrow_suggest::Worker>'; did you mean to use '->' instead of '.'?}} 244 } 245 246 } // namespace arrow_suggest 247 248 // Make sure fixing namespace-qualified identifiers functions properly with 249 // namespace-aware typo correction/ 250 namespace redecl_typo { 251 namespace Foo { 252 void BeEvil(); // expected-note {{'BeEvil' declared here}} 253 } 254 namespace Bar { 255 namespace Foo { 256 bool isGood(); // expected-note {{'Bar::Foo::isGood' declared here}} 257 void beEvil(); 258 } 259 } 260 bool Foo::isGood() { // expected-error {{out-of-line definition of 'isGood' does not match any declaration in namespace 'redecl_typo::Foo'; did you mean 'Bar::Foo::isGood'?}} 261 return true; 262 } 263 void Foo::beEvil() {} // expected-error {{out-of-line definition of 'beEvil' does not match any declaration in namespace 'redecl_typo::Foo'; did you mean 'BeEvil'?}} 264 } 265 266 // Test behavior when a template-id is ended by a token which starts with '>'. 267 namespace greatergreater { 268 template<typename T> struct S { S(); S(T); }; 269 void f(S<int>=0); // expected-error {{a space is required between a right angle bracket and an equals sign (use '> =')}} 270 271 // FIXME: The fix-its here overlap so -fixit mode can't apply the second one. 272 //void f(S<S<int>>=S<int>()); 273 274 struct Shr { 275 template<typename T> Shr(T); 276 template<typename T> void operator >>=(T); 277 }; 278 279 template<template<typename>> struct TemplateTemplateParam; // expected-error {{requires 'class'}} 280 281 template<typename T> void t(); 282 void g() { 283 void (*p)() = &t<int>; 284 (void)(&t<int>==p); // expected-error {{use '> ='}} 285 (void)(&t<int>>=p); // expected-error {{use '> >'}} 286 (void)(&t<S<int>>>=p); // expected-error {{use '> >'}} 287 (Shr)&t<S<int>>>>=p; // expected-error {{use '> >'}} 288 289 // FIXME: We correct this to '&t<int> > >= p;' not '&t<int> >>= p;' 290 //(Shr)&t<int>>>=p; 291 292 // FIXME: The fix-its here overlap. 293 //(void)(&t<S<int>>==p); 294 } 295 } 296 297 class foo { 298 static void test() { 299 (void)&i; // expected-error{{must explicitly qualify name of member function when taking its address}} 300 } 301 int i(); 302 }; 303 304 namespace dtor_fixit { 305 class foo { 306 ~bar() { } // expected-error {{expected the class name after '~' to name a destructor}} 307 // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:6-[[@LINE-1]]:9}:"foo" 308 }; 309 } 310 311 namespace PR5066 { 312 template<typename T> struct X {}; 313 X<int *p> x; // expected-error {{type-id cannot have a name}} 314 } 315 316 namespace PR5898 { 317 class A { 318 public: 319 const char *str(); 320 }; 321 const char* foo(A &x) 322 { 323 return x.str.(); // expected-error {{unexpected '.' in function call; perhaps remove the '.'?}} 324 } 325 bool bar(A x, const char *y) { 326 return foo->(x) == y; // expected-error {{unexpected '->' in function call; perhaps remove the '->'?}} 327 } 328 } 329 330 namespace PR15045 { 331 class Cl0 { 332 public: 333 int a; 334 }; 335 336 int f() { 337 Cl0 c; 338 return c->a; // expected-error {{member reference type 'PR15045::Cl0' is not a pointer; maybe you meant to use '.'?}} 339 } 340 } 341