1 files changed, 8 insertions, 0 deletions
diff --git a/components/script/dom/bindings/codegen/Configuration.py b/components/script/dom/bindings/codegen/Configuration.py
index a8179c5be95..4275d8da24c 100644
--- a/components/script/dom/bindings/codegen/Configuration.py
+++ b/components/script/dom/bindings/codegen/Configuration.py
@@ -318,6 +318,14 @@ class Descriptor(DescriptorProvider):
         maybeAppendInfallibleToAttrs(attrs, throws)
         return attrs
 
+    def getParentName(self):
+        assert self.interface.parent is not None
+        return self.interface.parent.identifier.name
+
+    def hasDescendants(self):
+        return (self.interface.getUserData("hasConcreteDescendant", False) or
+                self.interface.getUserData("hasProxyDescendant", False))
+
     def isGlobal(self):
         """
         Returns true if this is the primary interface for a global object