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 | |