zero reference when object is collected

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@27704 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,8 @@
+2009-01-27  Richard Frith-Macdonald <rfm@gnu.org>
+
+	* Source/NSValue.m: ([valueWithNonretainedObject:]) zero the reference
+	when the object is collected.
+
 2009-01-25  Richard Frith-Macdonald <rfm@gnu.org>
 
 	* Source/NSURL.m: Compatibility tweaks for a few MacOS-X oddities...

Source/GSConcreteValueTemplate.m

@@ -90,8 +90,18 @@
    * Ensure that the version encoded is that used by the abstract class.
    */
   [self setVersion: [super version]];
+#if TYPE_ORDER == 0 && GS_WITH_GC
+  GSMakeWeakPointer(self, "data");
+#endif
 }
 
+#if TYPE_ORDER == 0 && GS_WITH_GC
+- (void) finalize
+{
+  GSAssignZeroingWeakPointer((void**)&data, (void*)nil);
+}
+#endif
+
 // Allocating and Initializing
 
 - (id) initWithBytes: (const void *)value
@@ -99,7 +109,11 @@
 {
   typedef __typeof__(data) _dt;
   self = [super init];
+#if TYPE_ORDER == 0 && GS_WITH_GC
+  GSAssignZeroingWeakPointer((void**)&data, (void*)(*(id*)value));
+#else
   data = *(_dt *)value;
+#endif
   return self;
 }
 

Source/NSUnarchiver.m

@@ -756,8 +756,7 @@ static Class NSDataMallocClass;
 		   */
 		  if (c == nil)
 		    {
-		      NSLog(@"Got nil when trying to unarchive class %s",
-			className);
+		      NSLog(@"Unable to find class named '%s'", className);
 		    }
 		  [classInfo mapToClass: c withName: className];
 		  [objDict setObject: classInfo forKey: className];