proto and baseenv()
Quoth hadley wickham on Sweetmorn, the 56th of Chaos:
You might want to have a look at the mutatr package which implements prototype OO with the behaviour you're looking for (I think).
Hey, Hadley; I remember your prototype stuff from DSC 2009. I saw some slides of yours that discussed proto, and was wondering whether mutatr was still maintained. Would you mind sending me that paper off-list, if necessary?