From: npostavs@users.sourceforge.net
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: 27016@debbugs.gnu.org, Rafael D Sorkin <rsorkin@perimeterinstitute.ca>
Subject: bug#27016: possible bug in `defsetf'
Date: Fri, 26 May 2017 18:51:21 -0400 [thread overview]
Message-ID: <87h9075j12.fsf@users.sourceforge.net> (raw)
In-Reply-To: <jwvd1awl1ni.fsf-monnier+bug#27016@gnu.org> (Stefan Monnier's message of "Thu, 25 May 2017 23:50:54 -0400")
reopen 27016
tag 27016 - wontfix
quit
Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
>> (unless t
>> (defalias 'foobar 'cons)
>> (defsetf foobar setcar)) ; nil
>> (foobar pair) ; same as above
>> (setf (foobar pair) 0) ; 0 !
>
> I can confirm that it's a bug. It's perfectly correct for the defsetf
> to be macroexpanded, but not to be evaluated.
> Not sure how best to get that behavior. The naive/straightforward way
> might be to introduce some sort of eval-and-compile-when-at-toplevel,
> but there's probably a better way. The first thing to do is to look at
> how it was done in Emacs-23.
Is the difference in Emacs-23 not just eager macroexpansion?
Both the Emacs-23 and the current code seem to expand to (put 'foobar
...).
next prev parent reply other threads:[~2017-05-26 22:51 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-22 6:39 bug#27016: possible bug in `defsetf' Rafael D Sorkin
2017-05-22 12:11 ` npostavs
2017-05-22 20:25 ` Rafael D Sorkin
2017-05-22 21:18 ` npostavs
2017-05-22 23:10 ` Michael Heerdegen
2017-05-22 23:23 ` npostavs
2017-05-23 0:45 ` Michael Heerdegen
2017-05-23 0:51 ` npostavs
2017-05-23 1:18 ` Michael Heerdegen
2017-05-22 22:03 ` Rafael D Sorkin
2017-05-22 23:15 ` npostavs
2017-05-24 4:52 ` Rafael D Sorkin
2017-05-24 22:51 ` Michael Heerdegen
2017-05-25 1:50 ` npostavs
2017-05-25 4:59 ` Rafael D Sorkin
2017-05-25 5:01 ` Rafael D Sorkin
2017-05-25 10:38 ` npostavs
2017-05-25 20:26 ` Michael Heerdegen
2017-05-25 20:42 ` Noam Postavsky
2017-05-25 21:31 ` Michael Heerdegen
2017-05-25 23:03 ` npostavs
2017-05-25 23:40 ` Michael Heerdegen
2017-05-26 3:50 ` Stefan Monnier
2017-05-26 22:51 ` npostavs [this message]
2017-05-28 20:45 ` Stefan Monnier
2017-07-02 20:47 ` npostavs
2017-07-03 11:25 ` Michael Heerdegen
2017-07-09 20:13 ` npostavs
2017-07-10 0:26 ` Michael Heerdegen
2017-07-11 1:45 ` npostavs
2017-07-11 16:21 ` Stefan Monnier
2017-07-12 0:55 ` npostavs
2017-07-12 2:01 ` Stefan Monnier
2017-07-13 4:46 ` npostavs
2017-07-13 14:25 ` Stefan Monnier
2017-07-14 0:39 ` npostavs
2017-07-14 3:48 ` Stefan Monnier
2017-07-14 4:32 ` Stefan Monnier
2017-07-15 14:51 ` npostavs
2017-07-16 1:03 ` Stefan Monnier
2017-08-08 1:18 ` npostavs
2017-05-26 5:05 ` Rafael D Sorkin
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