diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/obj-c++.dg/private-2.mm')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/obj-c++.dg/private-2.mm | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/obj-c++.dg/private-2.mm b/gcc-4.9/gcc/testsuite/obj-c++.dg/private-2.mm new file mode 100644 index 000000000..3e6ff118d --- /dev/null +++ b/gcc-4.9/gcc/testsuite/obj-c++.dg/private-2.mm @@ -0,0 +1,56 @@ +/* Test warnings for shadowing instance variables. */ +/* Based on work by: Nicola Pero <nicola@brainstorm.co.uk>. */ + +/* { dg-do compile } */ + +#include <objc/objc.h> + +@interface MySuperClass +{ +@private + int _private; + +@protected + int _protected; + +@public + int _public; +} +- (void) test; +@end + +@implementation MySuperClass +- (void) test +{ + /* FIXME: I wonder if the warnings shouldn't be better generated + when the variable is declared, rather than used! */ + int _private = 12; + int _protected = 12; + int _public = 12; + int a; + + a = _private; /* { dg-warning "hides instance variable" } */ + a = _protected; /* { dg-warning "hides instance variable" } */ + a = _public; /* { dg-warning "hides instance variable" } */ +} +@end + + +@interface MyClass : MySuperClass +@end + +@implementation MyClass +- (void) test +{ + int _private = 12; + int _protected = 12; + int _public = 12; + int a; + + /* The private variable can be shadowed without warnings, because + * it's invisible, and not accessible, to the subclass! */ + a = _private; /* Ok */ + a = _protected; /* { dg-warning "hides instance variable" } */ + a = _public; /* { dg-warning "hides instance variable" } */ +} +@end |