replacing the class of an instance

[Bill Rodgers]

If you use Smalltalk, it will happen automatically.  That's
the default behavior.  Check it out if you have a little spare
time.  It's an excellent development environment for many
types of apps.

Bill Janssen <janssen at parc.xerox.com> wrote in message
news:99Sep24.123307pdt."3473"@watson.parc.xerox.com...
> I'd like to be able to replace the class of previously created
> instances when I create a new version of the class.  Is it sufficient
> to keep track of all the instances, then go through and change the
> __class__ member of each instance when I change the class definition?
>
> Or is there an even easier way?
>
> Bill
>
>