1 // RUN: %clang_cc1 -verify -fsyntax-only -fblocks -Wshadow %s
2
3 int i; // expected-note 3 {{previous declaration is here}}
4
foo()5 void foo() {
6 int pass1;
7 int i; // expected-warning {{declaration shadows a variable in the global scope}} \
8 // expected-note {{previous declaration is here}}
9 {
10 int pass2;
11 int i; // expected-warning {{declaration shadows a local variable}} \
12 // expected-note {{previous declaration is here}}
13 {
14 int pass3;
15 int i; // expected-warning {{declaration shadows a local variable}}
16 }
17 }
18
19 int sin; // okay; 'sin' has not been declared, even though it's a builtin.
20 }
21
22 // <rdar://problem/7677531>
23 void (^test1)(int) = ^(int i) { // expected-warning {{declaration shadows a variable in the global scope}} \
24 // expected-note{{previous declaration is here}}
25 {
26 int i; // expected-warning {{declaration shadows a local variable}} \
27 // expected-note{{previous declaration is here}}
28
29 (^(int i) { return i; })(i); //expected-warning {{declaration shadows a local variable}}
30 }
31 };
32
33
34 struct test2 {
35 int i;
36 };
37
test3(void)38 void test3(void) {
39 struct test4 {
40 int i;
41 };
42 }
43
test4(int i)44 void test4(int i) { // expected-warning {{declaration shadows a variable in the global scope}}
45 }
46
47 // Don't warn about shadowing for function declarations.
48 void test5(int i);
test6(void (* f)(int i))49 void test6(void (*f)(int i)) {}
test7(void * context,void (* callback)(void * context))50 void test7(void *context, void (*callback)(void *context)) {}
51
52 extern int bob; // expected-note {{previous declaration is here}}
53
54 // rdar://8883302
rdar8883302()55 void rdar8883302() {
56 extern int bob; // don't warn for shadowing.
57 }
58
test8()59 void test8() {
60 int bob; // expected-warning {{declaration shadows a variable in the global scope}}
61 }
62
63 enum PR24718_1{pr24718}; // expected-note {{previous declaration is here}}
PR24718(void)64 void PR24718(void) {
65 enum PR24718_2{pr24718}; // expected-warning {{declaration shadows a variable in the global scope}}
66 }
67
68 struct PR24718_3;
69 struct PR24718_4 {
70 enum {
71 PR24718_3 // Does not shadow a type.
72 };
73 };
74