singleton classes never become otherwise, immutable field
@@ -8,7 +8,7 @@ from topaz.objects.objectobject import W_Object
class W_ClassObject(W_ModuleObject):
- _immutable_fields_ = ["superclass?"]
+ _immutable_fields_ = ["superclass?", "is_singleton"]
classdef = ClassDef("Class", W_ModuleObject.classdef)
