The root factory may now return an object which implements ``ITraverser`` directly. In this case, no adaptation is done before traversal. This feature is added such that a routes factory can implement its own traversal logic without establishing an artificial context only to get a hook into the traversal machinery.

1 files changed, 6 insertions, 3 deletions

diff --git a/repoze/bfg/traversal.py b/repoze/bfg/traversal.py
index 11e5ca806..580225566 100644
--- a/repoze/bfg/traversal.py
+++ b/repoze/bfg/traversal.py
@@ -273,9 +273,12 @@ def traverse(model, path):
     return _traverse(model, {'PATH_INFO':path})
 
 def _traverse(model, environ):
-    traverser = queryAdapter(model, ITraverser)
-    if traverser is None:
-        traverser = ModelGraphTraverser(model)
+    if ITraverser.providedBy(model):
+        traverser = model
+    else:
+        traverser = queryAdapter(model, ITraverser)
+        if traverser is None:
+            traverser = ModelGraphTraverser(model)
 
     result = traverser(environ)
     return result