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* EIEIO built in methods -- question
@ 2013-06-09 10:22 Eric Abrahamsen
  2013-06-09 10:49 ` Eric Abrahamsen
  2013-06-09 11:54 ` Pascal J. Bourguignon
  0 siblings, 2 replies; 17+ messages in thread
From: Eric Abrahamsen @ 2013-06-09 10:22 UTC (permalink / raw)
  To: help-gnu-emacs

There's not a lot of documentation out there about using EIEIO, so I
want to check something. First of all I'm using emacs-version "24.3.1"
(the archlinux package).

This is so everyday in Python (the other language I have experience in)
and so weird to me in (e)lisp that I'm experiencing a kind of cognitive
clash, and want to make sure I'm not doing something very wrong. How does
this look to anyone who knows EIEIO (or I guess CLOS)?:

(defclass persistent-thing (eieio-persistent)
  ()
  :documentation "Just for testing, :file slot comes from the superclass")

(defmethod constructor :static ((thing persistent-thing) newname &rest slots)
  (let ((filename (plist-get slots :file)))
    (when (member filename my-big-bad-list-of-filenames)
      (error "There's already a thing writing to %s" filename))
   (apply 'call-next-method thing newname slots)))

Is this how we should be doing it? Essentially, Python's "**kwargs"
turns into "&rest slots" --> (apply 'call-next-method .... slots).

I'd be interested in writing up a small introduction about how to use
"internal" methods, ie methods on the eieio-default-superclass. So far
I've messed with constructor, destructor, object-print, and I guess
initialize-instance (oooh, damn, I just realized I should probably be
using initialize-instance rather than constructor in my above example).
There are several more I haven't experimented with, but that should be
documented.

If I make a documentation patch against the manual, will someone with
actual EIEIO/CLOS experience take a look at it?

Thanks!
Eric




^ permalink raw reply	[flat|nested] 17+ messages in thread

end of thread, other threads:[~2013-06-14 18:29 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-06-09 10:22 EIEIO built in methods -- question Eric Abrahamsen
2013-06-09 10:49 ` Eric Abrahamsen
2013-06-09 11:54 ` Pascal J. Bourguignon
2013-06-09 15:22   ` Eric Abrahamsen
     [not found]   ` <mailman.1279.1370791373.22516.help-gnu-emacs@gnu.org>
2013-06-09 20:47     ` Pascal J. Bourguignon
2013-06-10 15:48       ` David Engster
2013-06-11  2:16         ` Eric Abrahamsen
2013-06-12 15:44           ` David Engster
2013-06-13  5:11             ` Eric Abrahamsen
2013-06-13  9:06               ` Eric Abrahamsen
2013-06-13 15:49               ` David Engster
2013-06-14  1:37                 ` Eric Abrahamsen
2013-06-14 15:14                   ` David Engster
2013-06-14 16:15                     ` Eric Abrahamsen
     [not found]                     ` <mailman.1680.1371226519.22516.help-gnu-emacs@gnu.org>
2013-06-14 18:29                       ` Pascal J. Bourguignon
     [not found]       ` <mailman.1356.1370879310.22516.help-gnu-emacs@gnu.org>
2013-06-10 19:18         ` Pascal J. Bourguignon
2013-06-11 15:43           ` David Engster

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