As a heuristic, setting methods for language-related primitives is dangerous (also a little strange?).
Yes. But if it is allowed, someone will do it. It may actually make sense to come up with an appropriate (and preferably small) list of primitive functions and say that you can not define methods for them (at least easily).
______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
