PR objc/25965

In gcc/objc/:
       * objc-act.c (objc_get_interface_ivars): New function.
       (objc_collecting_ivars): New variable.
       (continue_class): Set and reset objc_collecting_ivars for context.
In gcc/:
       * c-decl.c (detect_field_duplicates): If compiling Objective-C,
       call objc_get_interface_ivars ().
       * c-family/c-common.h (objc_get_interface_ivars): New declaration.
       * c-family/stub-objc.c (objc_get_interface_ivars): New stub.
In gcc/objcp/:
       * objcp-decl.c (objcp_finish_struct): Call
       objc_get_interface_ivars() and check for duplicate ivars.

In gcc/testsuite/:
       Merge from 'apple/trunk' branch on FSF servers.

       2005-10-11  Fariborz Jahanian <fjahanian@apple.com>

               Radar 4291785

               objc.dg/naming-4.m: New
               objc.dg/naming-5.m: New
               obj-c++.dg/naming-1.mm: New
               obj-c++.dg/naming-2.mm: New


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@164491 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 69 insertions, 0 deletions

diff --git a/gcc/testsuite/objc.dg/naming-4.m b/gcc/testsuite/objc.dg/naming-4.m
new file mode 100644
index 00000000000..9a85229f6a7
--- /dev/null
+++ b/gcc/testsuite/objc.dg/naming-4.m
@@ -0,0 +1,27 @@
+/* Testing for detecting duplicate ivars. */
+/* { dg-do compile } */
+
+typedef struct S { int i; } NSDictionary;
+
+@interface A 
+{
+    NSDictionary * _userInfo;
+}
+@end
+
+@interface B : A
+{
+    NSDictionary * _userInfo;	/* { dg-error "duplicate member" } */
+    NSDictionary * _userInfo;	/* { dg-error "duplicate member" } */
+}
+@end
+
+@interface C : A
+@end
+
+@interface D : C
+{
+    NSDictionary * _userInfo;   /* { dg-error "duplicate member" } */
+    NSDictionary * _userInfo;   /* { dg-error "duplicate member" } */
+}
+@end
diff --git a/gcc/testsuite/objc.dg/naming-5.m b/gcc/testsuite/objc.dg/naming-5.m
new file mode 100644
index 00000000000..2e2786c41de
--- /dev/null
+++ b/gcc/testsuite/objc.dg/naming-5.m
@@ -0,0 +1,42 @@
+/* Testing for detecting duplicate ivars. */
+/* { dg-do compile } */
+
+typedef struct S { int i; } NSDictionary;
+
+@interface A 
+{
+    NSDictionary * _userInfo;
+    int i1;
+    int i2;
+    int i3;
+    int i4;
+    int i5;
+    int i6;
+    int i7;
+}
+@end
+
+@interface B : A
+{
+    NSDictionary * _userInfo;	/* { dg-error "duplicate member" } */
+    int ii1;
+    int ii2;
+    int ii3;
+    int ii4;
+    int ii5;
+    int ii6;
+    int ii7;
+    NSDictionary * _userInfo;	/* { dg-error "duplicate member" } */
+}
+@end
+
+@interface C : A
+@end
+
+@interface D : C
+{
+    NSDictionary * _userInfo;   /* { dg-error "duplicate member" } */
+    NSDictionary * _userInfo;   /* { dg-error "duplicate member" } */
+}	
+@end
+