Re: before and after methods

zbyszek zbyszek@mimuw.edu.pl wrote:

Dnia 2017-05-17, śro o godzinie 15:24 -0400, Sam Steingold pisze:

...

If you are defining the method combination, you have way more freedom and flexibility than mere before and after. Basically, you can do it yourself.

But Didier is asking about BUILT-IN method combinations. Possibly it was hard to define reasonable agreed semantics for before an after methods in the case of something like AND or APPEND (technical troubles aside).

Right. I was merely curious. It's pretty obvious to me why you wouldn't allow CALL-NEXT-METHOD in non-standard built-in combinations, but I can't figure out why or how before and after methods could be problematic, so I was wondering...