| 1 | // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify %s |
| 2 | // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify -std=c++98 %s |
| 3 | // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify -std=c++11 %s |
| 4 | |
| 5 | struct A; // expected-note 4 {{forward declaration of 'A'}} |
| 6 | |
| 7 | struct Abstract { virtual void f() = 0; }; // expected-note {{unimplemented pure virtual method 'f'}} |
| 8 | |
| 9 | void trys() { |
| 10 | int k = 42; |
| 11 | try { |
| 12 | } catch(int i) { // expected-note {{previous definition}} |
| 13 | int j = i; |
| 14 | int i; // expected-error {{redefinition of 'i'}} |
| 15 | } catch(float i) { |
| 16 | } catch(void v) { // expected-error {{cannot catch incomplete type 'void'}} |
| 17 | } catch(A a) { // expected-error {{cannot catch incomplete type 'A'}} |
| 18 | } catch(A *a) { // expected-error {{cannot catch pointer to incomplete type 'A'}} |
| 19 | } catch(A &a) { // expected-error {{cannot catch reference to incomplete type 'A'}} |
| 20 | } catch(Abstract) { // expected-error {{variable type 'Abstract' is an abstract class}} |
| 21 | } catch(...) { |
| 22 | int ref = k; |
| 23 | { |
| 24 | int ref = k; |
| 25 | } |
| 26 | int j = i; // expected-error {{use of undeclared identifier 'i'}} |
| 27 | } |
| 28 | |
| 29 | try { |
| 30 | } catch(...) { // expected-error {{catch-all handler must come last}} |
| 31 | } catch(int) { |
| 32 | } |
| 33 | } |
| 34 | |
| 35 | void throws() { |
| 36 | throw; |
| 37 | throw 0; |
| 38 | throw throw; // expected-error {{cannot throw object of incomplete type 'void'}} |
| 39 | throw (A*)0; // expected-error {{cannot throw pointer to object of incomplete type 'A'}} |
| 40 | } |
| 41 | |
| 42 | void jumps() { |
| 43 | l1: |
| 44 | goto l5; |
| 45 | goto l4; // expected-error {{cannot jump}} |
| 46 | goto l3; // expected-error {{cannot jump}} |
| 47 | goto l2; // expected-error {{cannot jump}} |
| 48 | goto l1; |
| 49 | try { // expected-note 4 {{jump bypasses initialization of try block}} |
| 50 | l2: |
| 51 | goto l5; |
| 52 | goto l4; // expected-error {{cannot jump}} |
| 53 | goto l3; // expected-error {{cannot jump}} |
| 54 | goto l2; |
| 55 | goto l1; |
| 56 | } catch(int) { // expected-note 4 {{jump bypasses initialization of catch block}} |
| 57 | l3: |
| 58 | goto l5; |
| 59 | goto l4; // expected-error {{cannot jump}} |
| 60 | goto l3; |
| 61 | goto l2; // expected-error {{cannot jump}} |
| 62 | goto l1; |
| 63 | } catch(...) { // expected-note 4 {{jump bypasses initialization of catch block}} |
| 64 | l4: |
| 65 | goto l5; |
| 66 | goto l4; |
| 67 | goto l3; // expected-error {{cannot jump}} |
| 68 | goto l2; // expected-error {{cannot jump}} |
| 69 | goto l1; |
| 70 | } |
| 71 | l5: |
| 72 | goto l5; |
| 73 | goto l4; // expected-error {{cannot jump}} |
| 74 | goto l3; // expected-error {{cannot jump}} |
| 75 | goto l2; // expected-error {{cannot jump}} |
| 76 | goto l1; |
| 77 | } |
| 78 | |
| 79 | struct BadReturn { |
| 80 | BadReturn() try { |
| 81 | } catch(...) { |
| 82 | // Try to hide |
| 83 | try { |
| 84 | } catch(...) { |
| 85 | { |
| 86 | if (0) |
| 87 | return; // expected-error {{return in the catch of a function try block of a constructor is illegal}} |
| 88 | } |
| 89 | } |
| 90 | } |
| 91 | BadReturn(int); |
| 92 | }; |
| 93 | |
| 94 | BadReturn::BadReturn(int) try { |
| 95 | } catch(...) { |
| 96 | // Try to hide |
| 97 | try { |
| 98 | } catch(int) { |
| 99 | return; // expected-error {{return in the catch of a function try block of a constructor is illegal}} |
| 100 | } catch(...) { |
| 101 | { |
| 102 | if (0) |
| 103 | return; // expected-error {{return in the catch of a function try block of a constructor is illegal}} |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | // Cannot throw an abstract type. |
| 109 | class foo { |
| 110 | public: |
| 111 | foo() {} |
| 112 | void bar () { |
| 113 | throw *this; // expected-error{{cannot throw an object of abstract type 'foo'}} |
| 114 | } |
| 115 | virtual void test () = 0; // expected-note{{unimplemented pure virtual method 'test'}} |
| 116 | }; |
| 117 | |
| 118 | namespace PR6831 { |
| 119 | namespace NA { struct S; } |
| 120 | namespace NB { struct S; } |
| 121 | |
| 122 | void f() { |
| 123 | using namespace NA; |
| 124 | using namespace NB; |
| 125 | try { |
| 126 | } catch (int S) { |
| 127 | } |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | namespace Decay { |
| 132 | struct A { |
| 133 | void f() throw (A[10]); |
| 134 | }; |
| 135 | |
| 136 | template<typename T> struct B { |
| 137 | void f() throw (B[10]); |
| 138 | }; |
| 139 | template struct B<int>; |
| 140 | |
| 141 | void f() throw (int[10], int(*)()); |
| 142 | void f() throw (int*, int()); |
| 143 | |
| 144 | template<typename T> struct C { |
| 145 | void f() throw (T); |
| 146 | #if __cplusplus <= 199711L |
| 147 | // expected-error@-2 {{pointer to incomplete type 'Decay::E' is not allowed in exception specification}} |
| 148 | #endif |
| 149 | }; |
| 150 | struct D { |
| 151 | C<D[10]> c; |
| 152 | }; |
| 153 | struct E; |
| 154 | #if __cplusplus <= 199711L |
| 155 | // expected-note@-2 {{forward declaration of 'Decay::E'}} |
| 156 | #endif |
| 157 | |
| 158 | C<E[10]> e; |
| 159 | #if __cplusplus <= 199711L |
| 160 | // expected-note@-2 {{in instantiation of template class 'Decay::C<Decay::E [10]>' requested here}} |
| 161 | #endif |
| 162 | } |
| 163 | |
| 164 | void rval_ref() throw (int &&); // expected-error {{rvalue reference type 'int &&' is not allowed in exception specification}} |
| 165 | #if __cplusplus <= 199711L |
| 166 | // expected-warning@-2 {{rvalue references are a C++11 extension}} |
| 167 | #endif |
| 168 | |
| 169 | namespace HandlerInversion { |
| 170 | struct B {}; |
| 171 | struct D : B {}; |
| 172 | struct D2 : D {}; |
| 173 | |
| 174 | void f1() { |
| 175 | try { |
| 176 | } catch (B &b) { // expected-note {{for type 'HandlerInversion::B &'}} |
| 177 | } catch (D &d) { // expected-warning {{exception of type 'HandlerInversion::D &' will be caught by earlier handler}} |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | void f2() { |
| 182 | try { |
| 183 | } catch (B *b) { // expected-note {{for type 'HandlerInversion::B *'}} |
| 184 | } catch (D *d) { // expected-warning {{exception of type 'HandlerInversion::D *' will be caught by earlier handler}} |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | void f3() { |
| 189 | try { |
| 190 | } catch (D &d) { // Ok |
| 191 | } catch (B &b) { |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | void f4() { |
| 196 | try { |
| 197 | } catch (B &b) { // Ok |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | void f5() { |
| 202 | try { |
| 203 | } catch (int) { |
| 204 | } catch (float) { |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | void f6() { |
| 209 | try { |
| 210 | } catch (B &b) { // expected-note {{for type 'HandlerInversion::B &'}} |
| 211 | } catch (D2 &d) { // expected-warning {{exception of type 'HandlerInversion::D2 &' will be caught by earlier handler}} |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | void f7() { |
| 216 | try { |
| 217 | } catch (B *b) { // Ok |
| 218 | } catch (D &d) { // Ok |
| 219 | } |
| 220 | |
| 221 | try { |
| 222 | } catch (B b) { // Ok |
| 223 | } catch (D *d) { // Ok |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | void f8() { |
| 228 | try { |
| 229 | } catch (const B &b) { // expected-note {{for type 'const HandlerInversion::B &'}} |
| 230 | } catch (D2 &d) { // expected-warning {{exception of type 'HandlerInversion::D2 &' will be caught by earlier handler}} |
| 231 | } |
| 232 | |
| 233 | try { |
| 234 | } catch (B &b) { // expected-note {{for type 'HandlerInversion::B &'}} |
| 235 | } catch (const D2 &d) { // expected-warning {{exception of type 'const HandlerInversion::D2 &' will be caught by earlier handler}} |
| 236 | } |
| 237 | |
| 238 | try { |
| 239 | } catch (B b) { // expected-note {{for type 'HandlerInversion::B'}} |
| 240 | } catch (D &d) { // expected-warning {{exception of type 'HandlerInversion::D &' will be caught by earlier handler}} |
| 241 | } |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | namespace ConstVolatileThrow { |
| 246 | struct S { |
| 247 | S() {} // expected-note{{candidate constructor not viable}} |
| 248 | S(const S &s); // expected-note{{candidate constructor not viable}} |
| 249 | }; |
| 250 | |
| 251 | typedef const volatile S CVS; |
| 252 | |
| 253 | void f() { |
| 254 | throw CVS(); // expected-error{{no matching constructor for initialization}} |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | namespace ConstVolatileCatch { |
| 259 | struct S { |
| 260 | S() {} |
| 261 | S(const volatile S &s); |
| 262 | |
| 263 | private: |
| 264 | S(const S &s); // expected-note {{declared private here}} |
| 265 | }; |
| 266 | |
| 267 | void f(); |
| 268 | |
| 269 | void g() { |
| 270 | try { |
| 271 | f(); |
| 272 | } catch (volatile S s) { // expected-error {{calling a private constructor}} |
| 273 | } |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | namespace PR28047 { |
| 278 | void test1(int i) { |
| 279 | try { |
| 280 | } catch (int(*)[i]) { // expected-error{{cannot catch variably modified type}} |
| 281 | } |
| 282 | } |
| 283 | void test2() { |
| 284 | int i; |
| 285 | try { |
| 286 | } catch (int(*)[i]) { // expected-error{{cannot catch variably modified type}} |
| 287 | } |
| 288 | } |
| 289 | } |
| 290 | |