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