Fix deletion of nodes in .transform.

ekiru · Aug 4, 2010 · e3dd6b2 · e3dd6b2
1 parent f7cd6ed
commit e3dd6b2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Tree/Pattern/Transformer.nqp b/src/Tree/Pattern/Transformer.nqp
@@ -119,7 +119,7 @@ module Tree::Walker {
             $shouldDescend := !$walker.descend_until.ACCEPTS($node);
         }
 
-        if ($shouldDescend) {
+        if ($shouldDescend && !pir::isnull__IP($result)) {
             $walker.depth($walker.depth + 1);
             my $newChildren := walkChildren($walker, $result);
             replaceChildren($result, $newChildren);