From: Lars Magne Ingebrigtsen <larsi@gnus.org>
To: emacs-devel@gnu.org
Subject: Re: Lexical let and setq
Date: Sat, 14 Sep 2013 13:13:32 +0200 [thread overview]
Message-ID: <m3fvt71wrn.fsf@stories.gnus.org> (raw)
In-Reply-To: jwvk3ikm5nm.fsf-monnier+emacs@gnu.org
Stefan Monnier <monnier@iro.umontreal.ca> writes:
> That one is OK, since recursion is not supported efficiently.
> The problem is when people use the above because they're writing (poor)
> C code in Elisp (e.g. they begin their functions with a big let
> declaring all the local vars that they may use later on in the
> function).
I think the most common reason for stashing a lot of variables in a let
is to avoid infinite indentation.
(let ((a (foo)))
(something)
(let ((b (something-else)))
(more a b)
(let ((c (yet-more)))
(zot a b c))))
vs
(let ((a (foo))
b c)
(something)
(setq b (something-else))
(more a b)
(setq c (yet-more))
(zot a b c))
I kinda think the latter form is sometimes more readable.
--
(domestic pets only, the antidote for overdose, milk.)
larsi@gnus.org * Lars Magne Ingebrigtsen
next prev parent reply other threads:[~2013-09-14 11:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <871u51ll93.fsf@yandex.ru>
[not found] ` <jwvzjrly386.fsf-monnier+emacs@gnu.org>
[not found] ` <jwvhadps8a1.fsf-monnier+emacs@gnu.org>
[not found] ` <0b29ebee-8ed4-47e2-816b-910a013a0898@default>
[not found] ` <jwvzjrhqrft.fsf-monnier+emacs@gnu.org>
2013-09-14 0:09 ` Lexical let and setq Michael Welsh Duggan
2013-09-14 3:46 ` Stefan Monnier
2013-09-14 11:13 ` Lars Magne Ingebrigtsen [this message]
2013-09-14 14:04 ` Pascal J. Bourguignon
2013-09-15 5:11 ` Stefan Monnier
2013-09-14 21:47 ` Richard Stallman
2013-09-15 5:09 ` Stefan Monnier
2013-09-15 16:54 ` Richard Stallman
2013-09-15 17:06 ` Stefan Monnier
2013-09-16 10:47 ` Richard Stallman
2013-09-16 15:59 Barry OReilly
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