As for the original question, I don't see any reason the various built-in method combination could not have been defined to support :before and :after methods. But the way they are defined is consonant with the short form of define-method-combination, which implies that the several built-in method combinations would typically be implemented using short form d-m-c. So the scope of the original question probably should be expanded to include short form d-m-c.
On Fri, May 19, 2017 at 6:20 PM, Steve Haflich <shafl...@gmail.com> wrote: > You're apparently confusing two different meaning of "standard". It's not > the meaning that something is defined in the ANS and therefore built into > the standard ANSI CL language. Rather, it is a standard > method-combination that is not the one known as STANDARD-METHOD-COMBINATION. > > On Wed, May 17, 2017 at 1:50 PM, Ken Tilton <ken.til...@weather.com> > wrote: > >> Ah, but the OP specified "built-in" along with "non-standard". >> >> hth >> >> -hk >> >> On Wed, May 17, 2017 at 3:24 PM, Sam Steingold <s...@gnu.org> wrote: >> >>> > * Didier Verna <qvq...@yeqr.rcvgn.se> [2017-05-17 17:33:40 +0200]: >>> > >>> > Does anyone know why the non-standard built-in method combinations do >>> > not support before and after methods? >>> >>> 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. >>> >>> -- >>> Sam Steingold (http://sds.podval.org/) on darwin Ns 10.3.1504 >>> http://steingoldpsychology.com http://www.childpsy.net >>> https://ffii.org http://camera.org http://think-israel.org >>> http://no2bds.org >>> Do not worry about which side your bread is buttered on: you eat BOTH >>> sides. >>> >>> >> >> >> -- >> *Ken **Tilton *|Software Engineer >> *w:* (555) 555-5555 *e:* ken.til...@weather.com >> <http://weather.com/apps> <http://weather.com/apps> >> <http://weather.com/apps> <http://weather.com/apps> >> <http://weather.com/apps> <http://weather.com/apps> >> <http://weather.com/apps> <http://weather.com/apps> >> <http://weather.com/apps> <http://weather.com/apps> >> <http://weather.com/apps> <http://weather.com/apps> >> <http://weather.com/apps> <http://weather.com/apps> >> <http://weather.com/apps> <http://weather.com/apps> >> <http://weather.com/apps> >> > >