From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Nic Ferrier <nferrier@ferrier.me.uk>
Cc: emacs-devel@gnu.org
Subject: Re: adding namespaces to emacs-lisp (better elisp?)
Date: Fri, 26 Jul 2013 11:43:40 -0400 [thread overview]
Message-ID: <jwvy58tl52t.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <874nbh2z3y.fsf@ferrier.me.uk> (Nic Ferrier's message of "Fri, 26 Jul 2013 15:08:01 +0100")
> We had a lot of discussion recently about making EmacsLisp
I'm not sure I understand: do you mean Emacs does not Lisp enough yet?
> Here http://nic.ferrier.me.uk/blog/2013_06/adding-namespaces-to-elisp is
> a proposal to add namespaces to emacs-lisp.
Comments:
- "Interning a symbol with "::" in it should no longer be possible.
It should raise an error." Why not simply intern it in the
corresponding namespace? It's probably a bad practice, but Emacs is
usually not in the business of preventing bad practice.
- I'm not sure how well it will cope with shadowing and non-namespaced
symbols (e.g. symbols like `face' that aren't used as variables).
The rule "global obarray is inspected first and if a symbol is found
there that's what is used" means that we have to be vary careful about
interning things in the global obarray since it can affect the way
other code is handled. Currently, we're very liberal about interning
in the global obarray.
Basically I think this shadowing rule makes things a bit too automatic
for something where we need more control.
I think that, for backward compatibility reasons we can't easily mark
"non-prefixed symbols that should be global" (such as `face'), so the
safer alternative is to force local symbols to be specially marked
(like ::foo, maybe, to mean "foo in the current local obarray").
Having to prefix every single local symbol that way probably sounds
rather unpalatable, tho.
- I'm not sure exactly how you expect importing namespaces
should/will work.
-- Stefan
next prev parent reply other threads:[~2013-07-26 15:43 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-26 14:08 adding namespaces to emacs-lisp (better elisp?) Nic Ferrier
2013-07-26 14:34 ` Drew Adams
2013-07-26 17:01 ` Pascal J. Bourguignon
2013-07-26 17:01 ` CommonLisp namespace system (was Re: adding namespaces to emacs-lisp (better elisp?)) Nic Ferrier
2013-07-26 17:19 ` Drew Adams
2013-07-26 18:26 ` Sebastian Wiesner
2013-07-26 18:53 ` Drew Adams
2013-07-26 21:08 ` Pascal J. Bourguignon
2013-07-26 18:23 ` Stefan Monnier
2013-07-26 18:32 ` Nic Ferrier
2013-07-26 18:45 ` Tom Tromey
2013-07-26 18:58 ` Drew Adams
2013-07-26 19:06 ` Nic Ferrier
2013-07-26 20:46 ` CommonLisp namespace system Lars Brinkhoff
2013-07-26 20:57 ` Drew Adams
2013-07-26 21:47 ` Nic Ferrier
2013-07-29 17:31 ` Lars Brinkhoff
2013-07-26 20:57 ` CommonLisp namespace system (was Re: adding namespaces to emacs-lisp (better elisp?)) Drew Adams
2013-07-27 7:17 ` Richard Stallman
2013-07-27 8:13 ` Nic Ferrier
2013-07-27 11:43 ` Bastien
2013-07-27 12:00 ` David Engster
2013-07-27 16:56 ` Nic Ferrier
2013-07-27 23:52 ` Richard Stallman
2013-07-28 7:22 ` Nic Ferrier
2013-07-28 8:18 ` Jambunathan K
2013-07-28 12:10 ` Richard Stallman
2013-07-28 13:48 ` Nic Ferrier
2013-07-29 10:12 ` Richard Stallman
2013-07-29 10:45 ` Nic Ferrier
2013-07-30 0:31 ` Richard Stallman
2013-07-27 9:37 ` CommonLisp namespace system Lars Brinkhoff
2013-07-26 19:42 ` CommonLisp namespace system (was Re: adding namespaces to emacs-lisp (better elisp?)) Drew Adams
2013-07-26 21:26 ` Juanma Barranquero
2013-07-26 21:06 ` Pascal J. Bourguignon
2013-07-26 21:44 ` Nic Ferrier
2013-07-27 7:16 ` adding namespaces to emacs-lisp (better elisp?) Richard Stallman
2013-07-26 15:43 ` Stefan Monnier [this message]
2013-07-26 16:56 ` Nic Ferrier
2013-07-26 18:18 ` Stefan Monnier
2013-07-26 19:00 ` Nic Ferrier
2013-07-26 20:59 ` Stefan Monnier
2013-07-26 21:43 ` Nic Ferrier
2013-07-26 21:59 ` Drew Adams
2013-07-26 22:21 ` Stefan Monnier
2013-07-26 22:33 ` Nic Ferrier
2013-07-27 0:51 ` Stefan Monnier
2013-07-27 8:27 ` Nic Ferrier
2013-07-27 14:12 ` Stefan Monnier
2013-07-27 16:17 ` Nic Ferrier
2013-07-27 17:28 ` Stefan Monnier
2013-07-27 10:35 ` Pascal J. Bourguignon
2013-07-26 22:00 ` Drew Adams
2013-07-27 0:49 ` Stefan Monnier
2013-07-27 1:13 ` Drew Adams
2013-07-27 7:02 ` Lars Brinkhoff
2013-07-27 10:33 ` Pascal J. Bourguignon
2013-07-31 6:48 ` Lars Brinkhoff
2013-07-27 10:31 ` Pascal J. Bourguignon
2013-07-27 14:14 ` Stefan Monnier
2013-07-27 16:43 ` Drew Adams
2013-07-26 17:21 ` Davis Herring
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