| 1 | // RUN: %clang_cc1 -Wreorder -fsyntax-only -verify %s |
| 2 | // RUN: %clang_cc1 -Wreorder -fsyntax-only -verify -std=c++98 %s |
| 3 | // RUN: %clang_cc1 -Wreorder -fsyntax-only -verify -std=c++11 %s |
| 4 | |
| 5 | class A { |
| 6 | int m; |
| 7 | public: |
| 8 | A() : A::m(17) { } // expected-error {{member initializer 'm' does not name a non-static data member or base class}} |
| 9 | A(int); |
| 10 | }; |
| 11 | |
| 12 | class B : public A { |
| 13 | public: |
| 14 | B() : A(), m(1), n(3.14) { } |
| 15 | |
| 16 | private: |
| 17 | int m; |
| 18 | float n; |
| 19 | }; |
| 20 | |
| 21 | |
| 22 | class C : public virtual B { |
| 23 | public: |
| 24 | C() : B() { } |
| 25 | }; |
| 26 | |
| 27 | class D : public C { |
| 28 | public: |
| 29 | D() : B(), C() { } |
| 30 | }; |
| 31 | |
| 32 | class E : public D, public B { // expected-warning{{direct base 'B' is inaccessible due to ambiguity:\n class E -> class D -> class C -> class B\n class E -> class B}} |
| 33 | public: |
| 34 | E() : B(), D() { } // expected-error{{base class initializer 'B' names both a direct base class and an inherited virtual base class}} |
| 35 | }; |
| 36 | |
| 37 | |
| 38 | typedef int INT; |
| 39 | |
| 40 | class F : public B { |
| 41 | public: |
| 42 | int B; |
| 43 | |
| 44 | F() : B(17), |
| 45 | m(17), // expected-error{{member initializer 'm' does not name a non-static data member or base class}} |
| 46 | INT(17) // expected-error{{constructor initializer 'INT' (aka 'int') does not name a class}} |
| 47 | { |
| 48 | } |
| 49 | }; |
| 50 | |
| 51 | class G : A { |
| 52 | G() : A(10); // expected-error{{expected '{'}} |
| 53 | }; |
| 54 | |
| 55 | void f() : a(242) { } // expected-error{{only constructors take base initializers}} |
| 56 | |
| 57 | class H : A { |
| 58 | H(); |
| 59 | }; |
| 60 | |
| 61 | H::H() : A(10) { } |
| 62 | |
| 63 | |
| 64 | class X {}; |
| 65 | class Y {}; |
| 66 | |
| 67 | struct S : Y, virtual X { |
| 68 | S (); |
| 69 | }; |
| 70 | |
| 71 | struct Z : S { |
| 72 | Z() : X(), S(), E() {} // expected-error {{type 'E' is not a direct or virtual base of 'Z'}} |
| 73 | }; |
| 74 | |
| 75 | class U { |
| 76 | union { int a; char* p; }; |
| 77 | union { int b; double d; }; |
| 78 | |
| 79 | U() : a(1), // expected-note {{previous initialization is here}} |
| 80 | p(0), // expected-error {{initializing multiple members of union}} |
| 81 | d(1.0) {} |
| 82 | }; |
| 83 | |
| 84 | struct V {}; |
| 85 | struct Base {}; |
| 86 | struct Base1 {}; |
| 87 | |
| 88 | struct Derived : Base, Base1, virtual V { |
| 89 | Derived (); |
| 90 | }; |
| 91 | |
| 92 | struct Current : Derived { |
| 93 | int Derived; |
| 94 | Current() : Derived(1), ::Derived(), // expected-warning {{field 'Derived' will be initialized after base '::Derived'}} \ |
| 95 | // expected-warning {{base class '::Derived' will be initialized after base 'Derived::V'}} |
| 96 | ::Derived::Base(), // expected-error {{type '::Derived::Base' is not a direct or virtual base of 'Current'}} |
| 97 | Derived::Base1(), // expected-error {{type 'Derived::Base1' is not a direct or virtual base of 'Current'}} |
| 98 | Derived::V(), |
| 99 | ::NonExisting(), // expected-error {{member initializer 'NonExisting' does not name a non-static data member or}} |
| 100 | INT::NonExisting() {} // expected-error {{'INT' (aka 'int') is not a class, namespace, or enumeration}} \ |
| 101 | // expected-error {{member initializer 'NonExisting' does not name a non-static data member or}} |
| 102 | }; |
| 103 | |
| 104 | struct M { // expected-note 2 {{candidate constructor (the implicit copy constructor)}} |
| 105 | #if __cplusplus >= 201103L // C++11 or later |
| 106 | // expected-note@-2 2 {{candidate constructor (the implicit move constructor) not viable}} |
| 107 | #endif |
| 108 | // expected-note@-4 2 {{'M' declared here}} |
| 109 | M(int i, int j); // expected-note 2 {{candidate constructor}} |
| 110 | }; |
| 111 | |
| 112 | struct N : M { |
| 113 | N() : M(1), // expected-error {{no matching constructor for initialization of 'M'}} |
| 114 | m1(100) { } // expected-error {{no matching constructor for initialization of 'M'}} |
| 115 | M m1; |
| 116 | }; |
| 117 | |
| 118 | struct P : M { |
| 119 | P() { } // expected-error {{constructor for 'P' must explicitly initialize the base class 'M' which does not have a default constructor}} \ |
| 120 | // expected-error {{member 'm'}} |
| 121 | M m; // expected-note {{member is declared here}} |
| 122 | }; |
| 123 | |
| 124 | struct Q { |
| 125 | Q() : f1(1,2), // expected-error {{excess elements in scalar initializer}} |
| 126 | pf(0.0) { } // expected-error {{cannot initialize a member subobject of type 'float *' with an rvalue of type 'double'}} |
| 127 | float f1; |
| 128 | |
| 129 | float *pf; |
| 130 | }; |
| 131 | |
| 132 | // A silly class used to demonstrate field-is-uninitialized in constructors with |
| 133 | // multiple params. |
| 134 | int IntParam(int i) { return 0; }; |
| 135 | class TwoInOne { public: TwoInOne(TwoInOne a, TwoInOne b) {} }; |
| 136 | class InitializeUsingSelfTest { |
| 137 | bool A; |
| 138 | char* B; |
| 139 | int C; |
| 140 | TwoInOne D; |
| 141 | int E; |
| 142 | InitializeUsingSelfTest(int F) |
| 143 | : A(A), // expected-warning {{field 'A' is uninitialized when used here}} |
| 144 | B((((B)))), // expected-warning {{field 'B' is uninitialized when used here}} |
| 145 | C(A && InitializeUsingSelfTest::C), // expected-warning {{field 'C' is uninitialized when used here}} |
| 146 | D(D, // expected-warning {{field 'D' is uninitialized when used here}} |
| 147 | D), // expected-warning {{field 'D' is uninitialized when used here}} |
| 148 | E(IntParam(E)) {} // expected-warning {{field 'E' is uninitialized when used here}} |
| 149 | }; |
| 150 | |
| 151 | int IntWrapper(int &i) { return 0; }; |
| 152 | class InitializeUsingSelfExceptions { |
| 153 | int A; |
| 154 | int B; |
| 155 | int C; |
| 156 | void *P; |
| 157 | InitializeUsingSelfExceptions(int B) |
| 158 | : A(IntWrapper(A)), // Due to a conservative implementation, we do not report warnings inside function/ctor calls even though it is possible to do so. |
| 159 | B(B), // Not a warning; B is a local variable. |
| 160 | C(sizeof(C)), // sizeof doesn't reference contents, do not warn |
| 161 | P(&P) {} // address-of doesn't reference contents (the pointer may be dereferenced in the same expression but it would be rare; and weird) |
| 162 | }; |
| 163 | |
| 164 | class CopyConstructorTest { |
| 165 | bool A, B, C; |
| 166 | CopyConstructorTest(const CopyConstructorTest& rhs) |
| 167 | : A(rhs.A), |
| 168 | B(B), // expected-warning {{field 'B' is uninitialized when used here}} |
| 169 | C(rhs.C || C) { } // expected-warning {{field 'C' is uninitialized when used here}} |
| 170 | }; |
| 171 | |
| 172 | // Make sure we aren't marking default constructors when we shouldn't be. |
| 173 | template<typename T> |
| 174 | struct NDC { |
| 175 | T &ref; |
| 176 | |
| 177 | NDC() { } |
| 178 | NDC(T &ref) : ref(ref) { } |
| 179 | }; |
| 180 | |
| 181 | struct X0 : NDC<int> { |
| 182 | X0(int &ref) : NDC<int>(ref), ndc(ref) { } |
| 183 | |
| 184 | NDC<int> ndc; |
| 185 | }; |
| 186 | |
| 187 | namespace Test0 { |
| 188 | |
| 189 | struct A { A(); }; |
| 190 | |
| 191 | struct B { |
| 192 | B() { } |
| 193 | const A a; |
| 194 | }; |
| 195 | |
| 196 | } |
| 197 | |
| 198 | namespace Test1 { |
| 199 | struct A { |
| 200 | enum Kind { Foo } Kind; |
| 201 | A() : Kind(Foo) {} |
| 202 | }; |
| 203 | } |
| 204 | |
| 205 | namespace Test2 { |
| 206 | |
| 207 | struct A { |
| 208 | A(const A&); |
| 209 | }; |
| 210 | |
| 211 | struct B : virtual A { }; |
| 212 | |
| 213 | struct C : A, B { }; // expected-warning{{direct base 'Test2::A' is inaccessible due to ambiguity:\n struct Test2::C -> struct Test2::A\n struct Test2::C -> struct Test2::B -> struct Test2::A}} |
| 214 | |
| 215 | C f(C c) { |
| 216 | return c; |
| 217 | } |
| 218 | |
| 219 | } |
| 220 | |
| 221 | // Don't build implicit initializers for anonymous union fields when we already |
| 222 | // have an explicit initializer for another field in the union. |
| 223 | namespace PR7402 { |
| 224 | struct S { |
| 225 | union { |
| 226 | void* ptr_; |
| 227 | struct { int i_; }; |
| 228 | }; |
| 229 | |
| 230 | template <typename T> S(T) : ptr_(0) { } |
| 231 | }; |
| 232 | |
| 233 | void f() { |
| 234 | S s(3); |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | // <rdar://problem/8308215>: don't crash. |
| 239 | // Lots of questionable recovery here; errors can change. |
| 240 | namespace test3 { |
| 241 | class A : public std::exception {}; // expected-error {{undeclared identifier}} expected-error {{expected class name}} |
| 242 | // expected-note@-1 {{candidate constructor (the implicit copy constructor) not viable}} |
| 243 | #if __cplusplus >= 201103L // C++11 or later |
| 244 | // expected-note@-3 {{candidate constructor (the implicit move constructor) not viable}} |
| 245 | #endif |
| 246 | // expected-note@-5 {{candidate constructor (the implicit default constructor) not viable}} |
| 247 | |
| 248 | class B : public A { |
| 249 | public: |
| 250 | B(const String& s, int e=0) // expected-error {{unknown type name}} |
| 251 | : A(e), m_String(s) , m_ErrorStr(__null) {} // expected-error {{no matching constructor}} expected-error {{does not name}} |
| 252 | B(const B& e) |
| 253 | : A(e), m_String(e.m_String), m_ErrorStr(__null) { // expected-error {{does not name}} \ |
| 254 | // expected-error {{no member named 'm_String' in 'test3::B'}} |
| 255 | } |
| 256 | }; |
| 257 | } |
| 258 | |
| 259 | // PR8075 |
| 260 | namespace PR8075 { |
| 261 | |
| 262 | struct S1 { |
| 263 | enum { FOO = 42 }; |
| 264 | static const int bar = 42; |
| 265 | static int baz(); |
| 266 | S1(int); |
| 267 | }; |
| 268 | |
| 269 | const int S1::bar; |
| 270 | |
| 271 | struct S2 { |
| 272 | S1 s1; |
| 273 | S2() : s1(s1.FOO) {} |
| 274 | }; |
| 275 | |
| 276 | struct S3 { |
| 277 | S1 s1; |
| 278 | S3() : s1(s1.bar) {} |
| 279 | }; |
| 280 | |
| 281 | struct S4 { |
| 282 | S1 s1; |
| 283 | S4() : s1(s1.baz()) {} |
| 284 | }; |
| 285 | |
| 286 | } |
| 287 | |
| 288 | namespace PR12049 { |
| 289 | int function(); |
| 290 | |
| 291 | class Class |
| 292 | { |
| 293 | public: |
| 294 | Class() : member(function() {} // expected-note {{to match this '('}} |
| 295 | |
| 296 | int member; // expected-error {{expected ')'}} |
| 297 | }; |
| 298 | } |
| 299 | |
| 300 | namespace PR14073 { |
| 301 | struct S1 { union { int n; }; S1() : n(n) {} }; // expected-warning {{field 'n' is uninitialized when used here}} |
| 302 | struct S2 { union { union { int n; }; char c; }; S2() : n(n) {} }; // expected-warning {{field 'n' is uninitialized when used here}} |
| 303 | struct S3 { struct { int n; }; S3() : n(n) {} }; // expected-warning {{field 'n' is uninitialized when used here}} |
| 304 | } |
| 305 | |
| 306 | namespace PR10758 { |
| 307 | struct A; |
| 308 | struct B { |
| 309 | B (A const &); // expected-note 2 {{candidate constructor not viable: no known conversion from 'const PR10758::B' to 'const PR10758::A &' for 1st argument}} |
| 310 | B (B &); // expected-note 2 {{candidate constructor not viable: 1st argument ('const PR10758::B') would lose const qualifier}} |
| 311 | }; |
| 312 | struct A { |
| 313 | A (B); // expected-note 2 {{passing argument to parameter here}} |
| 314 | }; |
| 315 | |
| 316 | B f(B const &b) { |
| 317 | return b; // expected-error {{no matching constructor for initialization of 'PR10758::B'}} |
| 318 | } |
| 319 | |
| 320 | A f2(const B &b) { |
| 321 | return b; // expected-error {{no matching constructor for initialization of 'PR10758::B'}} |
| 322 | } |
| 323 | } |
| 324 | |