[Zope] Permission:when a permission is assigned to Anonymous

[robert rottermann]

Hi there,
I have the impression (but I am unsure) that when a permission is 
granted to Anonymous, this permission is set for everybody.

I gather this from the followin code:
from AccessControl.User.py

 def allowed(self, object, object_roles=None):
        """Check whether the user has access to object. The user must
           have one of the roles in object_roles to allow access."""

        if object_roles is _what_not_even_god_should_do: return 0

        # Short-circuit the common case of anonymous access.
        if object_roles is None or 'Anonymous' in object_roles:
            return 1
...

Is this assumption correct ?

Robert