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