[ZODB-Dev] Undo in run-time

[Barry A. Warsaw]

>>>>> "JH" == Jeremy Hylton <jeremy@zope.com> writes:

    JH> But what happens to the object itself?  When undo changes the
    JH> object state, the object is updated to use the old-now-current
    JH> state.  There's no state for the uncreated object, so what
    JH> happens to its state?

That's a good question!  We can't get rid of the object in the run
state of the program, but maybe we want to add another ZODB lifecycle
state that causes some exception to be raised whenever a GB'd object's
attributes are accessed?

-Barry