1 // RUN: %clang_cc1 -verify -fsyntax-only -fblocks -Wshadow %s
2
3 int i; // expected-note 4 {{previous declaration is here}}
4 static int s; // expected-note 2 {{previous declaration is here}}
5
foo(void)6 void foo(void) {
7 int pass1;
8 int i; // expected-warning {{declaration shadows a variable in the global scope}} \
9 // expected-note {{previous declaration is here}}
10 int s; // expected-warning {{declaration shadows a variable in the global scope}} \
11 // expected-note {{previous declaration is here}}
12 {
13 int pass2;
14 int i; // expected-warning {{declaration shadows a local variable}} \
15 // expected-note {{previous declaration is here}}
16 int s; // expected-warning {{declaration shadows a local variable}} \
17 // expected-note {{previous declaration is here}}
18 {
19 int pass3;
20 int i; // expected-warning {{declaration shadows a local variable}}
21 int s; // expected-warning {{declaration shadows a local variable}}
22 }
23 }
24
25 int sin; // okay; 'sin' has not been declared, even though it's a builtin.
26 }
27
28 void (^test1)(int) = ^(int i) { // expected-warning {{declaration shadows a variable in the global scope}} \
29 // expected-note{{previous declaration is here}}
30 {
31 int i; // expected-warning {{declaration shadows a local variable}} \
32 // expected-note{{previous declaration is here}}
33
34 (^(int i) { return i; })(i); //expected-warning {{declaration shadows a local variable}}
35 }
36 };
37
38
39 struct test2 {
40 int i;
41 };
42
test3(void)43 void test3(void) {
44 struct test4 {
45 int i;
46 };
47 }
48
test4(int i)49 void test4(int i) { // expected-warning {{declaration shadows a variable in the global scope}}
50 }
51
52 // Don't warn about shadowing for function declarations.
53 void test5(int i);
test6(void (* f)(int i))54 void test6(void (*f)(int i)) {}
test7(void * context,void (* callback)(void * context))55 void test7(void *context, void (*callback)(void *context)) {}
56
57 extern int bob; // expected-note {{previous declaration is here}}
58
rdar8883302(void)59 void rdar8883302(void) {
60 extern int bob; // don't warn for shadowing.
61 }
62
test8(void)63 void test8(void) {
64 int bob; // expected-warning {{declaration shadows a variable in the global scope}}
65 }
66
67 enum PR24718_1{pr24718}; // expected-note {{previous declaration is here}}
PR24718(void)68 void PR24718(void) {
69 enum PR24718_2{pr24718}; // expected-warning {{declaration shadows a variable in the global scope}}
70 }
71
72 struct PR24718_3;
73 struct PR24718_4 {
74 enum {
75 PR24718_3 // Does not shadow a type.
76 };
77 };
78
static_locals()79 void static_locals() {
80 static int i; // expected-warning {{declaration shadows a variable in the global scope}}
81 // expected-note@-1 {{previous definition is here}}
82 // expected-note@-2 {{previous declaration is here}}
83 int i; // expected-error {{non-static declaration of 'i' follows static declaration}}
84 static int foo; // expected-note {{previous declaration is here}}
85 static int hoge; // expected-note {{previous declaration is here}}
86 int s; // expected-warning {{declaration shadows a variable in the global scope}}
87 {
88 static int foo; // expected-warning {{declaration shadows a local variable}}
89 // expected-note@-1 {{previous declaration is here}}
90 static int i; // expected-warning {{declaration shadows a local variable}}
91 // expected-note@-1 {{previous declaration is here}}
92 int hoge; // expected-warning {{declaration shadows a local variable}}
93 {
94 static int foo; // expected-warning {{declaration shadows a local variable}}
95 int i; // expected-warning {{declaration shadows a local variable}}
96 extern int hoge;
97 }
98 }
99 }
100