obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 54 insertions, 0 deletions

diff --git a/gcc/testsuite/objc.dg/private-2.m b/gcc/testsuite/objc.dg/private-2.m
new file mode 100644
index 000000000..eff376a0c
--- /dev/null
+++ b/gcc/testsuite/objc.dg/private-2.m
@@ -0,0 +1,54 @@
+/* Test warnings for shadowing instance variables.  */
+/* Author: 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