From: Artur Malabarba <bruce.connor.am@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel <emacs-devel@gnu.org>
Subject: Re: [Emacs-diffs] master 1758951: lisp/let-alist.el (let-alist): Evaluate `alist' only once.
Date: Fri, 19 Dec 2014 10:59:11 -0200 [thread overview]
Message-ID: <CAAdUY-+vwXx=WKat8d_ZG07Egj6QeEHpdqFV=g9nHKKOFxyT7g@mail.gmail.com> (raw)
In-Reply-To: <jwv7fxoi7iz.fsf-monnier+emacsdiffs@gnu.org>
Thanks, I didn't about that. Unfortunately, it seems to not be
available on 24.2 or earlier. (at least, I couldn't find it)
I want to develop this version in parallel with the Elpa version for
now, while there are still a couple of features I'm planning to add.
But I'll add it in later (before release).
2014-12-19 2:33 GMT-02:00 Stefan Monnier <monnier@iro.umontreal.ca>:
>> + (let ((var (gensym "let-alist")))
>> + `(let ((,var ,alist)
>
> You can use `macroexp-let2' for that (with the extra benefit that it
> will skip the `let' if `alist' is already a trivial expression such as
> a simple variable).
>
>
> Stefan
next prev parent reply other threads:[~2014-12-19 12:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20141218203409.5403.91769@vcs.savannah.gnu.org>
[not found] ` <E1Y1hlx-0001Pn-JK@vcs.savannah.gnu.org>
2014-12-19 4:33 ` [Emacs-diffs] master 1758951: lisp/let-alist.el (let-alist): Evaluate `alist' only once Stefan Monnier
2014-12-19 12:59 ` Artur Malabarba [this message]
2014-12-19 12:59 ` Artur Malabarba
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