Raise an exception if a view is added to itself as a subview.

This is better than a DOM node exception.
cappuccino · Mar 27, 2012 · 38f8b1a · 38f8b1a
1 parent 099ee1e
commit 38f8b1a
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/AppKit/CPView.j b/AppKit/CPView.j
@@ -369,6 +369,9 @@ var CPViewFlags                     = { },
 /* @ignore */
 - (void)_insertSubview:(CPView)aSubview atIndex:(int)anIndex
 {
+    if (aSubview === self)
+        [CPException raise:CPInvalidArgumentException reason:"can't add a view as a subview of itself"];
+
     // We will have to adjust the z-index of all views starting at this index.
     var count = _subviews.length;