| 1 | // RUN: %clang_cc1 -verify -fsyntax-only -std=c++11 -Wshadow-all %s |
| 2 | |
| 3 | namespace { |
| 4 | int i; // expected-note {{previous declaration is here}} |
| 5 | } |
| 6 | |
| 7 | namespace one { |
| 8 | namespace two { |
| 9 | int j; // expected-note {{previous declaration is here}} |
| 10 | typedef int jj; // expected-note 2 {{previous declaration is here}} |
| 11 | using jjj=int; // expected-note 2 {{previous declaration is here}} |
| 12 | } |
| 13 | } |
| 14 | |
| 15 | namespace xx { |
| 16 | int m; |
| 17 | typedef int mm; |
| 18 | using mmm=int; |
| 19 | |
| 20 | } |
| 21 | namespace yy { |
| 22 | int m; |
| 23 | typedef char mm; |
| 24 | using mmm=char; |
| 25 | } |
| 26 | |
| 27 | using namespace one::two; |
| 28 | using namespace xx; |
| 29 | using namespace yy; |
| 30 | |
| 31 | void foo() { |
| 32 | int i; // expected-warning {{declaration shadows a variable in namespace '(anonymous)'}} |
| 33 | int j; // expected-warning {{declaration shadows a variable in namespace 'one::two'}} |
| 34 | int m; |
| 35 | int mm; |
| 36 | int mmm; |
| 37 | } |
| 38 | |
| 39 | class A { |
| 40 | static int data; // expected-note 1 {{previous declaration}} |
| 41 | // expected-note@+1 1 {{previous declaration}} |
| 42 | int field; |
| 43 | int f1, f2, f3, f4; // expected-note 8 {{previous declaration is here}} |
| 44 | |
| 45 | typedef int a1; // expected-note 2 {{previous declaration}} |
| 46 | using a2=int; // expected-note 2 {{previous declaration}} |
| 47 | |
| 48 | // The initialization is safe, but the modifications are not. |
| 49 | A(int f1, int f2, int f3, int f4) // expected-note-re 4 {{variable 'f{{[0-4]}}' is declared here}} |
| 50 | : f1(f1) { |
| 51 | f1 = 3; // expected-warning {{modifying constructor parameter 'f1' that shadows a field of 'A'}} |
| 52 | f1 = 4; // one warning per shadow |
| 53 | f2++; // expected-warning {{modifying constructor parameter 'f2' that shadows a field of 'A'}} |
| 54 | --f3; // expected-warning {{modifying constructor parameter 'f3' that shadows a field of 'A'}} |
| 55 | f4 += 2; // expected-warning {{modifying constructor parameter 'f4' that shadows a field of 'A'}} |
| 56 | } |
| 57 | |
| 58 | // The initialization is safe, but the modifications are not. |
| 59 | // expected-warning-re@+1 4 {{constructor parameter 'f{{[0-4]}}' shadows the field 'f{{[0-9]}}' of 'A'}} |
| 60 | A(int f1, int f2, int f3, int f4, double overload_dummy) {} |
| 61 | |
| 62 | void test() {
|
| 63 | char *field; // expected-warning {{declaration shadows a field of 'A'}}
|
| 64 | char *data; // expected-warning {{declaration shadows a static data member of 'A'}}
|
| 65 | char *a1; // no warning |
| 66 | char *a2; // no warning
|
| 67 | char *jj; // no warning
|
| 68 | char *jjj; // no warning
|
| 69 | } |
| 70 | |
| 71 | void test2() { |
| 72 | typedef char field; // no warning |
| 73 | typedef char data; // no warning |
| 74 | typedef char a1; // expected-warning {{declaration shadows a typedef in 'A'}} |
| 75 | typedef char a2; // expected-warning {{declaration shadows a type alias in 'A'}} |
| 76 | typedef char jj; // expected-warning {{declaration shadows a typedef in namespace 'one::two'}} |
| 77 | typedef char jjj; // expected-warning {{declaration shadows a type alias in namespace 'one::two'}} |
| 78 | } |
| 79 | |
| 80 | void test3() { |
| 81 | using field=char; // no warning |
| 82 | using data=char; // no warning |
| 83 | using a1=char; // expected-warning {{declaration shadows a typedef in 'A'}} |
| 84 | using a2=char; // expected-warning {{declaration shadows a type alias in 'A'}} |
| 85 | using jj=char; // expected-warning {{declaration shadows a typedef in namespace 'one::two'}} |
| 86 | using jjj=char; // expected-warning {{declaration shadows a type alias in namespace 'one::two'}} |
| 87 | } |
| 88 | }; |
| 89 | |
| 90 | struct path { |
| 91 | using value_type = char; |
| 92 | typedef char value_type2; |
| 93 | struct iterator { |
| 94 | using value_type = path; // no warning |
| 95 | typedef path value_type2; // no warning |
| 96 | }; |
| 97 | }; |
| 98 | |
| 99 | |
| 100 | // TODO: this should warn, <rdar://problem/5018057> |
| 101 | class B : A { |
| 102 | int data; |
| 103 | static int field; |
| 104 | }; |
| 105 | |
| 106 | // rdar://8900456 |
| 107 | namespace rdar8900456 { |
| 108 | struct Foo { |
| 109 | static void Baz(); |
| 110 | static void Baz1(); |
| 111 | static void Baz2(); |
| 112 | private: |
| 113 | int Bar; |
| 114 | }; |
| 115 | |
| 116 | void Foo::Baz() { |
| 117 | double Bar = 12; // Don't warn. |
| 118 | } |
| 119 | |
| 120 | void Foo::Baz1() { |
| 121 | typedef int Bar; // Don't warn. |
| 122 | } |
| 123 | |
| 124 | void Foo::Baz2() { |
| 125 | using Bar=int; // Don't warn. |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | // http://llvm.org/PR9160 |
| 130 | namespace PR9160 { |
| 131 | struct V { |
| 132 | V(int); |
| 133 | }; |
| 134 | struct S { |
| 135 | V v; |
| 136 | static void m() { |
| 137 | if (1) { |
| 138 | V v(0); |
| 139 | } |
| 140 | } |
| 141 | }; |
| 142 | } |
| 143 | |
| 144 | extern int bob; // expected-note 1 {{previous declaration is here}} |
| 145 | typedef int bob1; // expected-note 2 {{previous declaration is here}} |
| 146 | using bob2=int; // expected-note 2 {{previous declaration is here}} |
| 147 | |
| 148 | // rdar://8883302 |
| 149 | void rdar8883302() { |
| 150 | extern int bob; // don't warn for shadowing. |
| 151 | } |
| 152 | |
| 153 | void test8() { |
| 154 | int bob; // expected-warning {{declaration shadows a variable in the global namespace}} |
| 155 | int bob1; //no warning |
| 156 | int bob2; // no warning |
| 157 | } |
| 158 | |
| 159 | void test9() { |
| 160 | typedef int bob; // no warning |
| 161 | typedef int bob1; // expected-warning {{declaration shadows a typedef in the global namespace}} |
| 162 | typedef int bob2; // expected-warning {{declaration shadows a type alias in the global namespace}} |
| 163 | } |
| 164 | |
| 165 | void test10() { |
| 166 | using bob=int; // no warning |
| 167 | using bob1=int; // expected-warning {{declaration shadows a typedef in the global namespace}} |
| 168 | using bob2=int; // expected-warning {{declaration shadows a type alias in the global namespace}} |
| 169 | } |
| 170 | |
| 171 | namespace rdar29067894 { |
| 172 | |
| 173 | void avoidWarningWhenRedefining(int b) { // expected-note {{previous definition is here}} |
| 174 | int a = 0; // expected-note {{previous definition is here}} |
| 175 | int a = 1; // expected-error {{redefinition of 'a'}} |
| 176 | int b = 2; // expected-error {{redefinition of 'b'}} |
| 177 | |
| 178 | using c=char; // expected-note {{previous definition is here}} |
| 179 | using c=int; // expected-error {{type alias redefinition with different types ('int' vs 'char')}} |
| 180 | |
| 181 | typedef char d; // expected-note {{previous definition is here}} |
| 182 | typedef int d; // expected-error {{typedef redefinition with different types ('int' vs 'char')}} |
| 183 | |
| 184 | using e=char; // expected-note {{previous definition is here}} |
| 185 | typedef int e; // expected-error {{type alias redefinition with different types ('int' vs 'char')}} |
| 186 | |
| 187 | int f; // expected-note {{previous definition is here}} |
| 188 | using f=int; // expected-error {{redefinition of 'f'}} |
| 189 | |
| 190 | using g=int; // expected-note {{previous definition is here}} |
| 191 | int g; // expected-error {{redefinition of 'g'}} |
| 192 | |
| 193 | typedef int h; // expected-note {{previous definition is here}} |
| 194 | int h; // expected-error {{redefinition of 'h'}} |
| 195 | |
| 196 | int k; // expected-note {{previous definition is here}} |
| 197 | typedef int k; // expected-error {{redefinition of 'k'}} |
| 198 | |
| 199 | using l=char; // no warning or error.
|
| 200 | using l=char; // no warning or error.
|
| 201 | typedef char l; // no warning or error.
|
| 202 | |
| 203 | typedef char n; // no warning or error. |
| 204 | typedef char n; // no warning or error. |
| 205 | using n=char; // no warning or error.
|
| 206 | }
|
| 207 | |
| 208 | } |
| 209 | |
| 210 | extern "C" { |
| 211 | typedef int externC; // expected-note {{previous declaration is here}} |
| 212 | } |
| 213 | void handleLinkageSpec() { |
| 214 | typedef void externC; // expected-warning {{declaration shadows a typedef in the global namespace}} |
| 215 | } |
| 216 | |
| 217 | namespace PR33947 { |
| 218 | void f(int a) { |
| 219 | struct A { |
| 220 | void g(int a) {} |
| 221 | A() { int a; } |
| 222 | };
|
| 223 | }
|
| 224 | }
|
| 225 |
|
| 226 | namespace PR34120 {
|
| 227 | struct A {
|
| 228 | int B; // expected-note 2 {{declared here}}
|
| 229 | };
|
| 230 |
|
| 231 | class C : public A {
|
| 232 | void D(int B) {} // expected-warning {{parameter 'B' shadows member inherited from type 'A'}}
|
| 233 | void E() {
|
| 234 | extern void f(int B); // Ok
|
| 235 | }
|
| 236 | void F(int B); // Ok, declaration; not definition.
|
| 237 | void G(int B);
|
| 238 | };
|
| 239 |
|
| 240 | void C::G(int B) { // expected-warning {{parameter 'B' shadows member inherited from type 'A'}}
|
| 241 | }
|
| 242 |
|
| 243 | class Private {
|
| 244 | int B;
|
| 245 | };
|
| 246 | class Derived : Private {
|
| 247 | void D(int B) {} // Ok
|
| 248 | };
|
| 249 |
|
| 250 | struct Static {
|
| 251 | static int B;
|
| 252 | };
|
| 253 |
|
| 254 | struct Derived2 : Static {
|
| 255 | void D(int B) {}
|
| 256 | };
|
| 257 | }
|
| 258 | |
| 259 | int PR24718; |
| 260 | enum class X { PR24718 }; // Ok, not shadowing |
| 261 | |
| 262 | struct PR24718_1; |
| 263 | struct PR24718_2 { |
| 264 | enum { |
| 265 | PR24718_1 // Does not shadow a type. |
| 266 | }; |
| 267 | }; |
| 268 | |