From: Daniel Colascione <dan.colascione@gmail.com>
To: Leo <sdl.web@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: moving more cl seq/mapping support into core
Date: Thu, 30 Sep 2010 17:33:22 -0700 [thread overview]
Message-ID: <4CA52C52.1000004@gmail.com> (raw)
In-Reply-To: <m14oddrgb1.fsf@cam.ac.uk>
On 9/25/2010 8:30 AM, Leo wrote:
> On 2010-09-25 16:23 +0100, Drew Adams wrote:
>> Sorry, I don't get it. What is TEST for? It is typically for a binary
>> predicate such as `equal' - but we already have PREDICATE here. And just what
>> is second class here (if TEST is not added)?
>
> `remove-if' as defined in cl.el can not be used in a package intended to
> be included in GNU Emacs due to the use of cl run time functions.
>
> So to move this function into elisp Miles (I think) proposed that we
> give up some of its keyword arguments since they mostly are not used and
> turned the keyword :test argument into an optional one.
Why bother? A compiler-macro can examine a call to remove-if, see
whether it recognizes the keyword arguments, and if it does, transform
the whole call into something more lightweight. You retain the current
function's expressive power and CL compatibility while losing nothing in
performance.
next prev parent reply other threads:[~2010-10-01 0:33 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-24 22:48 moving more cl seq/mapping support into core MON KEY
2010-09-25 5:13 ` Leo
2010-09-25 5:58 ` Miles Bader
2010-09-25 14:42 ` Drew Adams
2010-09-25 15:07 ` Leo
2010-09-25 15:23 ` Drew Adams
2010-09-25 15:30 ` Leo
2010-09-25 15:33 ` David Kastrup
2010-09-25 15:55 ` Drew Adams
2010-09-25 15:55 ` Drew Adams
2010-09-25 16:01 ` Leo
2010-10-01 0:33 ` Daniel Colascione [this message]
2010-09-25 21:26 ` Miles Bader
2010-09-26 10:37 ` Richard Stallman
2010-09-26 13:13 ` Leo
2010-09-26 19:32 ` Miles Bader
2010-09-27 6:27 ` Richard Stallman
2010-10-01 0:28 ` Daniel Colascione
2010-10-01 3:16 ` Miles Bader
2010-10-01 20:39 ` Daniel Colascione
2010-10-02 7:12 ` David Kastrup
2010-10-03 23:15 ` Stefan Monnier
2010-10-04 17:41 ` Daniel Colascione
2010-10-05 23:32 ` Stefan Monnier
2010-10-01 11:42 ` Richard Stallman
2010-10-01 20:36 ` Daniel Colascione
2010-10-01 11:42 ` Richard Stallman
2010-10-01 20:34 ` Daniel Colascione
2010-10-01 21:12 ` Chong Yidong
2010-09-27 19:07 ` MON KEY
2010-10-02 5:35 ` MON KEY
2010-10-04 2:03 ` Richard Stallman
2010-10-04 5:51 ` MON KEY
2010-10-06 5:21 ` Richard Stallman
2010-10-09 0:29 ` MON KEY
2010-10-10 5:09 ` Richard Stallman
2010-10-04 17:33 ` Daniel Colascione
2010-10-05 9:55 ` Richard Stallman
2010-10-05 10:20 ` Helmut Eller
2010-10-05 18:27 ` Eli Zaretskii
2010-10-06 23:41 ` Richard Stallman
2010-10-07 15:04 ` Ted Zlatanov
2010-10-07 15:17 ` Karl Fogel
2010-10-09 2:13 ` Richard Stallman
2010-10-05 13:07 ` Ted Zlatanov
2010-10-06 23:41 ` Richard Stallman
2010-10-07 9:20 ` Daniel Colascione
2010-10-08 5:47 ` Richard Stallman
2010-10-05 18:26 ` Eli Zaretskii
2010-10-06 0:29 ` MON KEY
2010-10-08 2:07 ` Christian Ohler
2010-10-08 2:18 ` Miles Bader
2010-10-08 3:15 ` Christian Ohler
2010-10-06 8:04 ` Stephen J. Turnbull
2010-10-06 9:20 ` David Kastrup
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