From: "Clément Pit-Claudel" <cpitclaudel@gmail.com>
To: emacs-devel@gnu.org
Subject: Re: If records are not sequences, why does aref work on records?
Date: Sat, 8 Apr 2017 13:17:25 -0400 [thread overview]
Message-ID: <363dab7f-3bb4-47a0-d83c-95f4961a5443@gmail.com> (raw)
In-Reply-To: <86efx22a7u.fsf@molnjunk.nocrew.org>
On 2017-04-08 11:24, Lars Brinkhoff wrote:
> Clément Pit-Claudel wrote:
>> It doesn't need to: since vectors and lists are used, it's natural to
>> use vector and list functions on these objects. It goes further: the
>> cl-struct predicates are explicitly *documented* to work fine on
>> vectors:
>>
>> Given any Lisp object X, ‘(person-p X)’ returns true if X looks
>> like a ‘person’, and false otherwise. (Again, in Common Lisp this
>> predicate would be exact; in Emacs Lisp the best it can do is
>> verify that X is a vector of the correct length that starts with
>> the correct tag symbol.)
>
> Not any more. When I made my change, I found this part of the manual
> and deleted the text in parentheses. And also changed much of the other
> places you quoted.
Yup, of course; it was natural to update the manual along with the change. I was pointing to the documentation as it was when people introduced the `arefs' and 'cl-defstruct' whose validity is now under discussion in my their code, because the question was whether people should have known that using `aref' this way was relying on an implementation detail.
next prev parent reply other threads:[~2017-04-08 17:17 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
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 [this message]
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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