From: David Kastrup <dak@gnu.org>
To: Miles Bader <miles@gnu.org>
Cc: lekktu@gmail.com, emacs-devel@gnu.org
Subject: Re: "simplifications"
Date: Mon, 19 Nov 2007 12:57:29 +0100 [thread overview]
Message-ID: <861wam1m8m.fsf@lola.quinscape.zz> (raw)
In-Reply-To: <buohcjiwjtw.fsf@dhapc248.dev.necel.com> (Miles Bader's message of "Mon\, 19 Nov 2007 20\:33\:47 +0900")
Miles Bader <miles.bader@necel.com> writes:
> David Kastrup <dak@gnu.org> writes:
>> Personally, I think that we should make the byte compiler optimize the
>> unnecessary binding away.
>
> It'd be nice if it did, though you need to analyze the function to make
> sure there are no hidden uses of that binding; in particular, you need
> to know if any functions called inside the defsubst might use the
> dynamic binding of the defsubst's args.
>
> [I personally think that's a bit silly, and that it would be enough to
> just define defsubst as not guaranteeing dynamic bindings of its args,
> but as a recall, this has been discussed before, and the current
> behavior declared necessary...]
My recollection was rather that optimizing such cases (for a suitable
definition of "such") was deemed a good idea, but too invasive for the
Emacs 22 release schedule.
--
David Kastrup
next prev parent reply other threads:[~2007-11-19 11:57 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-19 10:46 "simplifications" David Kastrup
2007-11-19 10:56 ` "simplifications" Juanma Barranquero
2007-11-19 15:11 ` "simplifications" Stefan Monnier
2007-11-19 15:19 ` "simplifications" David Kastrup
2007-11-19 15:39 ` "simplifications" Juanma Barranquero
2007-11-19 15:44 ` "simplifications" Stefan Monnier
2007-11-19 15:47 ` "simplifications" Juanma Barranquero
2007-11-19 15:58 ` "simplifications" Stefan Monnier
2007-11-19 16:08 ` "simplifications" Juanma Barranquero
2007-11-19 18:46 ` "simplifications" Stefan Monnier
2007-11-19 16:02 ` "simplifications" David Kastrup
2007-11-19 16:05 ` "simplifications" Juanma Barranquero
2007-11-20 3:59 ` "simplifications" Richard Stallman
2007-11-20 15:27 ` "simplifications" Stefan Monnier
2007-11-21 21:37 ` "simplifications" Stephen J. Turnbull
2007-11-21 21:52 ` "simplifications" David Kastrup
2007-11-22 1:34 ` "simplifications" Stephen J. Turnbull
2007-11-19 11:02 ` "simplifications" Juanma Barranquero
2007-11-19 11:33 ` "simplifications" Miles Bader
2007-11-19 11:57 ` David Kastrup [this message]
2007-11-19 12:08 ` "simplifications" Juanma Barranquero
2007-11-19 12:21 ` "simplifications" David Kastrup
2007-11-19 12:32 ` "simplifications" Juanma Barranquero
2007-11-19 12:49 ` "simplifications" David Kastrup
2007-11-19 12:54 ` "simplifications" Juanma Barranquero
2007-11-20 3:59 ` "simplifications" Richard Stallman
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