Implement Rebuilder::visitInterface.

diff --git a/specs/stdapi.py b/specs/stdapi.py
index bb4b55b..a1b382f 100644 (file)
--- a/specs/stdapi.py
+++ b/specs/stdapi.py
@@ -551,6 +551,9 @@ class Rebuilder(Visitor):
     def visitOpaque(self, opaque):
         return opaque
 
+    def visitInterface(self, interface, *args, **kwargs):
+        return interface
+
     def visitPolymorphic(self, polymorphic):
         defaultType = self.visit(polymorphic.defaultType)
         switchExpr = polymorphic.switchExpr