What can modules hold on to?  Only classes, or can they also contain- and
load and unload- arbitrary objects or (more importantly) methods?

I was thinking about the way IBM's VA/Smalltalk + ENVY deals with modules,
in a structure called an "Application."  Applications can contain a number
of classes, but also new methods on pre-existing classes.  For example, I
could have a rot13 module that implemented String>>#rot13.

Regards,
Aaron

  Aaron Reichow  ::  UMD ACM Pres  ::  http://www.d.umn.edu/~reic0024/
"a system based on exchanging products inevitably channels wealth to a few, and
   no governmental change will ever be able to correct that."  ::  daniel quinn