Check for nil when replacing object in array.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@26525 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,7 @@
+2008-05-14  Richard Frith-Macdonald <rfm@gnu.org>
+
+	* Source/GSArray.m: Fix bug allowing nil to be placed in array.
+
 2008-05-01  Richard Frith-Macdonald <rfm@gnu.org>
 
 	* configure.ac: try to use libffi on sparc64 as libffcall does not

Source/GSArray.m

@@ -714,6 +714,21 @@ static Class	GSInlineArrayClass;
     {
       [self _raiseRangeExceptionWithIndex: index from: _cmd];
     }
+  if (!anObject)
+    {
+      NSException  *exception;
+      NSDictionary *info;
+
+      info = [NSDictionary dictionaryWithObjectsAndKeys:
+	[NSNumber numberWithUnsignedInt: index], @"Index",
+        _contents_array[index], @"OLdObject",
+	self, @"Array", nil, nil];
+
+      exception = [NSException exceptionWithName: NSInvalidArgumentException
+	reason: @"Tried to replace object in array with nil"
+	userInfo: info];
+      [exception raise];
+    }
   /*
    *	Swap objects in order so that there is always a valid object in the
    *	array in case a retain or release causes an exception.