Search the object's MRO for visitors

fonttools · Jul 3, 2024 · 3546b9f · 3546b9f
1 parent ee56bb0
commit 3546b9f
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/Lib/fontTools/misc/visitor.py b/Lib/fontTools/misc/visitor.py
@@ -61,9 +61,10 @@ def _visitorsFor(celf, thing, _default={}):
             if _visitors is None:
                 break
 
-            m = celf._visitors.get(typ, None)
-            if m is not None:
-                return m
+            for base in typ.mro():
+                m = celf._visitors.get(base, None)
+                if m is not None:
+                    return m
 
         return _default