From: Noam Postavsky <npostavs@users.sourceforge.net>
To: Drew Adams <drew.adams@oracle.com>
Cc: Stefan Monnier <monnier@iro.umontreal.ca>,
Emacs developers <emacs-devel@gnu.org>
Subject: Re: If records are not sequences, why does aref work on records?
Date: Fri, 7 Apr 2017 17:02:32 -0400 [thread overview]
Message-ID: <CAM-tV--ybsu+WtMTk8CQFz_FUgBt1cQgQizsrGdax4D2JpTTJw@mail.gmail.com> (raw)
In-Reply-To: <f8f65e42-1e08-4e20-af09-5e00cfca8a18@default>
On Fri, Apr 7, 2017 at 4:49 PM, Drew Adams <drew.adams@oracle.com> wrote:
>
> I don't understand the backward-compatibility argument.
> A record type has not existed before. When/where do we
> already have `aref'/`copy-sequence' being applied to
> something other than a sequence/array?
Up until the recent changes, the things produced by cl-defstruct
make-foo functions were vectors with the first element being the
symbol 'cl-struct-foo'. So they could be indexed with aref and copied
with copy-sequence. Now they are "record" objects, but we don't want
to break code that uses aref and copy-sequence on them.
next prev parent reply other threads:[~2017-04-07 21:02 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-05 15:31 Recent change in master breaks async package update using paradox Kaushal Modi
2017-04-05 16:05 ` Eli Zaretskii
2017-04-05 21:59 ` Tom Tromey
2017-04-05 22:48 ` Kaushal Modi
2017-04-06 5:00 ` Lars Brinkhoff
2017-04-06 10:46 ` Kaushal Modi
2017-04-06 11:00 ` Lars Brinkhoff
2017-04-06 11:28 ` Kaushal Modi
2017-04-06 12:12 ` Lars Brinkhoff
2017-04-06 12:22 ` Noam Postavsky
2017-04-06 12:36 ` Lars Brinkhoff
2017-04-06 11:19 ` Lars Brinkhoff
2017-04-07 5:42 ` Lars Brinkhoff
2017-04-07 7:25 ` Eli Zaretskii
2017-04-07 7:40 ` Lars Brinkhoff
2017-04-07 9:51 ` Eli Zaretskii
2017-04-07 13:28 ` Debugging problems using async.el Lars Brinkhoff
2017-04-07 14:11 ` Kaushal Modi
2017-04-07 14:39 ` Eli Zaretskii
2017-04-07 18:10 ` Lars Brinkhoff
2017-04-07 11:59 ` Recent change in master breaks async package update using paradox Stefan Monnier
2017-04-07 13:07 ` What is a "sequence"? Lars Brinkhoff
2017-04-07 13:26 ` Stefan Monnier
2017-04-07 16:56 ` If records are not sequences, why does aref work on records? Paul Eggert
2017-04-07 17:27 ` Lars Brinkhoff
2017-04-07 17:41 ` Drew Adams
2017-04-07 18:23 ` Lars Brinkhoff
2017-04-07 18:30 ` Drew Adams
2017-04-07 19:07 ` Noam Postavsky
2017-04-07 19:13 ` Stefan Monnier
2017-04-07 20:49 ` Drew Adams
2017-04-07 21:00 ` Clément Pit-Claudel
2017-04-07 21:02 ` Noam Postavsky [this message]
2017-04-08 1:58 ` Paul Eggert
2017-04-08 5:03 ` Lars Brinkhoff
2017-04-08 5:25 ` Lars Brinkhoff
2017-04-08 5:34 ` Noam Postavsky
2017-04-08 7:42 ` Paul Eggert
2017-04-08 7:50 ` Eli Zaretskii
2017-04-08 13:33 ` Noam Postavsky
2017-04-08 11:34 ` Philipp Stephani
2017-04-08 12:24 ` Clément Pit-Claudel
2017-04-08 15:24 ` Lars Brinkhoff
2017-04-08 17:17 ` Clément Pit-Claudel
2017-04-08 17:46 ` Lars Brinkhoff
2017-04-09 19:15 ` Richard Stallman
2017-04-11 12:27 ` Stefan Monnier
2017-04-07 19:25 ` Clément Pit-Claudel
2017-04-07 19:41 ` Noam Postavsky
2017-04-07 20:12 ` Clément Pit-Claudel
2017-04-07 19:43 ` Stefan Monnier
2017-04-07 17:59 ` Clément Pit-Claudel
2017-04-07 18:28 ` Recent change in master breaks async package update using paradox Lars Brinkhoff
2017-04-08 6:50 ` Lars Brinkhoff
2017-04-08 12:25 ` Clément Pit-Claudel
2017-04-08 13:35 ` Kaushal Modi
2017-04-08 18:21 ` Lars Brinkhoff
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