| 1 | // RUN: %clang_cc1 -fsyntax-only -Wuninitialized -fsyntax-only -fblocks %s -verify |
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| 2 | |
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| 3 | #include <stdarg.h> |
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| 4 | |
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| 5 | @interface NSObject {} @end |
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| 6 | @class NSString; |
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| 7 | |
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| 8 | @interface NSException |
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| 9 | + (void)raise:(NSString *)name format:(NSString *)format, ...; |
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| 10 | + (void)raise:(NSString *)name format:(NSString *)format arguments:(va_list)argList; |
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| 11 | - (void)raise; |
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| 12 | @end |
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| 13 | |
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| 14 | // Duplicated from uninit-variables.c. |
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| 15 | // Test just to ensure the analysis is working. |
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| 16 | int test1() { |
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| 17 | int x; // expected-note{{initialize the variable 'x' to silence this warning}} |
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| 18 | return x; // expected-warning{{variable 'x' is uninitialized when used here}} |
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| 19 | } |
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| 20 | |
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| 21 | // Test ObjC fast enumeration. |
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| 22 | void test2() { |
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| 23 | id collection = 0; |
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| 24 | for (id obj in collection) { |
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| 25 | if (0 == obj) // no-warning |
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| 26 | break; |
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| 27 | } |
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| 28 | } |
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| 29 | |
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| 30 | void test3() { |
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| 31 | id collection = 0; |
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| 32 | id obj; |
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| 33 | for (obj in collection) { // no-warning |
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| 34 | if (0 == obj) // no-warning |
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| 35 | break; |
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| 36 | } |
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| 37 | } |
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| 38 | |
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| 39 | int test_abort_on_exceptions(int y, NSException *e, NSString *s, int *z, ...) { |
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| 40 | int x; // expected-note {{initialize the variable 'x' to silence this warning}} |
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| 41 | if (y == 1) { |
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| 42 | va_list alist; |
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| 43 | va_start(alist, z); |
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| 44 | [NSException raise:@"Blah" format:@"Blah %@" arguments:alist]; |
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| 45 | return x; |
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| 46 | } |
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| 47 | else if (y == 2) { |
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| 48 | [NSException raise:@"Blah" format:s]; |
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| 49 | return x; |
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| 50 | } |
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| 51 | else if (y == 3) { |
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| 52 | [e raise]; |
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| 53 | return x; |
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| 54 | } |
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| 55 | return x; // expected-warning {{variable 'x' is uninitialized when used here}} |
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| 56 | } |
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| 57 | |
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