From: Oleh <ohwoeowho@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Any disadvantages of using put/get instead of defvar?
Date: Thu, 20 Feb 2014 18:04:52 +0100 [thread overview]
Message-ID: <CAA01p3piw+0YGXqdACS4-u7FVe=GGmf=EtY5jC0=CU04i7zD7w@mail.gmail.com> (raw)
Hi all,
I've asked this question on stack overflow and it was suggested that I
ask it here as well.
The situation is that I have a function that uses one global variable.
It's for sure that no other function will want this variable.
In an effort to have all code in one place I want to move from:
(defvar bar-foo 1)
;; bunch of other code
(defun bar ()
;; use bar-foo here
)
to:
(defun bar ()
(let ((foo (or (get 'bar 'foo) 1)))
;; use foo here
))
So the advantage is that I can move and rename the function
without worry that the function/variable coupling will break,
because now everything is inside one function.
I realize that the variable can still be accessed from outside, but
that doesn't matter much.
One disadvantage listed in the responses was that now the variable
can't be buffer-local any more.
Any other disadvantages to this method?
regards,
Oleh
next reply other threads:[~2014-02-20 17:04 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-20 17:04 Oleh [this message]
2014-02-20 22:24 ` Any disadvantages of using put/get instead of defvar? Tassilo Horn
2014-02-21 1:40 ` Stefan Monnier
2014-02-21 10:29 ` Nicolas Richard
2014-02-21 13:57 ` Stefan Monnier
2014-02-21 11:49 ` Tassilo Horn
2014-02-21 14:41 ` Stefan Monnier
2014-02-21 9:12 ` Oleh
2014-02-21 9:39 ` Tassilo Horn
2014-02-21 9:44 ` Oleh
2014-02-21 9:51 ` Andreas Röhler
2014-02-21 9:56 ` Sebastian Wiesner
2014-02-21 11:56 ` Tassilo Horn
[not found] ` <mailman.15678.1392983787.10748.help-gnu-emacs@gnu.org>
2014-02-21 13:45 ` Helmut Eller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAA01p3piw+0YGXqdACS4-u7FVe=GGmf=EtY5jC0=CU04i7zD7w@mail.gmail.com' \
--to=ohwoeowho@gmail.com \
--cc=help-gnu-emacs@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.