From: Stefan Monnier <monnier@iro.umontreal.ca>
To: jari <jari.aalto@cante.net>
Cc: 7408@debbugs.gnu.org
Subject: bug#7408: 23.2.1 dolist -- subr.el and cl-macs differ with nil-block return
Date: Sun, 21 Nov 2010 13:51:58 -0500 [thread overview]
Message-ID: <jwvipzqy0s2.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <20101121090848.GB29648@picasso.cante.net> (jari's message of "Sun, 21 Nov 2010 11:08:48 +0200")
> | > $ emacs -Q
> | > (progn
> | > (autoload 'return "cl-macs" nil nil 'macro)
> | > (dolist (elt '(1 2))
> | > (return elt)))
> | This causes cl-macs to be run at an unexpected time. I.e. it's ruled
> | out for being a contrived example.
> Is the above code not valid?
Doesn't matter: lots of vlid Elisp code doesn't do what you'd expect.
> Does it not do what it is supposed to do;
Apparently it doesn't for you.
> to define `return' when it will be used for the first time?
The normal way to use CL features like `return' is with (require 'cl)
somewhere at the top-level. Anything else is poor code that needs to
be improved.
> | E.g. I'd be *really* surprised if it were an example you bumped into
> | before this discussion.
> Surprise or not, it demonstrates the defiency of claimed:
> - "dolist and dotimes are 100% compatible with CL's definition."
You don't need to teach me this. I know full well that 100%
compatibility between two pieces of code in Elisp is *never* true,
unless the two are `eq'.
Stefan
next prev parent reply other threads:[~2010-11-21 18:51 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <r6eo4w45.fsf@blue.sea.net>
[not found] ` <1213200935.4147.62.camel@cyberelk.elk>
2010-10-16 13:42 ` bug#7227: re-search-forward goes infinite loop with dash inside [] Jari Aalto
2010-10-16 13:54 ` Andreas Schwab
2010-11-16 21:25 ` bug#7408: Linux patchutils: Development of the project? Jari Aalto
2010-11-16 21:59 ` Lennart Borgman
2010-11-16 22:21 ` Stefan Monnier
2010-11-17 4:47 ` jari
2010-11-17 8:25 ` Glenn Morris
2010-11-17 13:39 ` Stefan Monnier
2010-11-17 12:47 ` Štěpán Němec
2010-11-17 13:39 ` Stefan Monnier
2010-11-18 22:02 ` bug#7408: 23.2.1 dolist -- subr.el and cl-macs differ with nil-block return Jari Aalto
2010-11-21 5:45 ` Stefan Monnier
2010-11-21 9:08 ` jari
2010-11-21 17:49 ` Eli Zaretskii
2010-11-21 18:51 ` Stefan Monnier [this message]
2010-11-17 14:18 ` bug#7408: Linux patchutils: Development of the project? martin rudalics
2010-11-15 10:51 bug#7408: 23.2.1 dolist -- subr.el and cl-macs differ with nil-block return Jari Aalto
2010-11-15 17:22 ` Stefan Monnier
2010-11-15 17:49 ` Lennart Borgman
2010-11-15 19:38 ` Stefan Monnier
[not found] ` <handler.7408.D7408.12898423464754.notifdone@debbugs.gnu.org>
2010-11-15 21:21 ` bug#7408: closed (Re: bug#7408: 23.2.1 dolist -- subr.el and cl-macs differ with nil-block return) jari
2010-11-15 21:57 ` bug#7408: 23.2.1 dolist -- subr.el and cl-macs differ with nil-block return Glenn Morris
-- strict thread matches above, loose matches on Subject: below --
2010-10-16 9:16 bug#7227: re-search-forward goes infinite loop with dash inside [] Jari Aalto
2010-10-16 11:27 ` Andreas Schwab
2010-10-16 11:39 ` Andreas Röhler
2010-10-22 7:55 ` bug#7227: Close bts:gnu Jari Aalto
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