From: Mark Oteiza <mvoteiza@udel.edu>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: [Emacs-diffs] master 1b4442b: Don't expand body inside a let-binding when there are no bindings
Date: Fri, 17 Feb 2017 19:10:25 -0500 [thread overview]
Message-ID: <20170218001025.GA4715@holos.localdomain> (raw)
In-Reply-To: <jwv1suwmki3.fsf-monnier+emacsdiffs@gnu.org>
On 17/02/17 at 07:05pm, Stefan Monnier wrote:
> > In the past I noticed that pcase expanded things to (let nil ...), which
> > I think is a bit annoying wrt readability, yes; however just recently I
> > was poking at elint.el, which complains about such forms with
> >
> > Empty varlist in let: (let nil <snip>)
> >
> > so I was more inclined to change it.
>
> OK, thanks.
>
> > Between vars possibly being expensive, and--one step beyond that--using an
> > uninterned symbol to ameliorate evalling vars twice incurring a cost
> > with dynamic binding, I suppose this change was short sighted.
>
> Sorry, I didn't understand this part of your message.
I was pondering not sending the last part because I was suddenly getting
really tired. As long as the change is okay I guess it doesn't matter.
Woops.
prev parent reply other threads:[~2017-02-18 0:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170216014306.20854.5128@vcs0.savannah.gnu.org>
[not found] ` <20170216014308.12DC326007@vcs0.savannah.gnu.org>
2017-02-16 13:32 ` [Emacs-diffs] master 1b4442b: Don't expand body inside a let-binding when there are no bindings Stefan Monnier
2017-02-17 4:44 ` Mark Oteiza
2017-02-18 0:05 ` Stefan Monnier
2017-02-18 0:10 ` Mark Oteiza [this message]
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