From: Tomohiro Matsuyama <tomo@cx4a.org>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: Should lexical-let use let in the situation lexical-binding is t ?
Date: Sat, 22 Sep 2012 03:18:24 +0900 [thread overview]
Message-ID: <20120922031824.e7f584613ca22d1a7ed32eba@cx4a.org> (raw)
In-Reply-To: <jwv392f5x9e.fsf-monnier+emacs@gnu.org>
> As mentioned in my reply there, the two aren't quite compatible (because
> (lexical-let ((tab-width 4)) foo) will be a lexical binding, whereas
> (let ((tab-width 4)) foo) will be a dynamic binding) so we could do
> that, but only after checking that the lexical-let-bound variable is not
> defvar'd, and this requires checking byte-compile-bound-variables, so it's
> rather ugly to do from a macro.
I'm very convinced by your example. Thank you!
By the way, isn't it possible to check if the symbol is declared as special or not by accessing declared_special field of the symbol?
Regards,
Tomohiro
next prev parent reply other threads:[~2012-09-21 18:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-18 10:28 Should lexical-let use let in the situation lexical-binding is t ? Tomohiro Matsuyama
2012-09-18 12:44 ` Stefan Monnier
2012-09-18 22:42 ` Richard Stallman
2012-09-19 0:41 ` Stefan Monnier
2012-09-19 14:12 ` Richard Stallman
2012-09-19 19:01 ` Stefan Monnier
2012-09-19 22:06 ` Sam Steingold
2012-09-20 3:26 ` Stefan Monnier
2012-09-20 15:06 ` Sam Steingold
2012-09-19 1:20 ` Sam Steingold
2012-09-19 7:43 ` Nix
2012-09-21 18:18 ` Tomohiro Matsuyama [this message]
2012-09-21 21:18 ` Stefan Monnier
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=20120922031824.e7f584613ca22d1a7ed32eba@cx4a.org \
--to=tomo@cx4a.org \
--cc=emacs-devel@gnu.org \
--cc=monnier@iro.umontreal.ca \
/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.