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From: Mark Oteiza <mvoteiza@udel.edu>
To: Noam Postavsky <npostavs@users.sourceforge.net>
Cc: Michael Heerdegen <michael_heerdegen@web.de>, 28254@debbugs.gnu.org
Subject: bug#28254: 26.0.50; SRFI-2 and-let*
Date: Fri, 8 Sep 2017 20:33:55 -0400	[thread overview]
Message-ID: <20170909003355.GA3363@holos.localdomain> (raw)
In-Reply-To: <20170905035548.GB11331@holos.localdomain>

On 04/09/17 at 11:55pm, Mark Oteiza wrote:
>On 03/09/17 at 09:13pm, Mark Oteiza wrote:
>>On 02/09/17 at 02:41pm, Noam Postavsky wrote:
>>>On Sat, Sep 2, 2017 at 9:36 AM, Mark Oteiza <mvoteiza@udel.edu> wrote:
>>>>This single tuple special case is troublesome IMO:
>>>>
>>>>(if-let* (x) "dogs" "cats") => "cats"
>>>>(if-let* (x (y 2)) "dogs" "cats") => (void-function y)
>>>>(if-let* (x (y 1) (z 2)) "dogs" "cats") => "cats"
>>>>
>>>>I'm curious if this was brought up in the old discussion when this was
>>>>implemented.
>>
>>FWIW, this was brought up in the original thread.
>>https://lists.gnu.org/archive/html/emacs-devel/2014-08/msg00228.html
>>
>>IMO the original suggestion of having if-let and when-let be exclusively
>>single binding, while the starred versions excluding the single binding
>>special case would be more sane.
>>
>>P.S. I just realized I didn't copy the tuple part of if-let* into
>>and-let* in the patch I just sent, and therefore missed the problem this
>>special case causes in tests.
>
>This is a patch implementing the above: if-let and when-let only take
>single tuple, while {if,when,and}-let* lose the single tuple special
>case.

Any comments?





  reply	other threads:[~2017-09-09  0:33 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-27 20:11 bug#28254: 26.0.50; SRFI-2 and-let* Mark Oteiza
2017-09-01  2:55 ` npostavs
2017-09-02  2:10   ` Mark Oteiza
2017-09-02  3:05     ` npostavs
2017-09-02  4:14       ` Mark Oteiza
2017-09-02  5:25         ` Michael Heerdegen
2017-09-02 13:36           ` Mark Oteiza
2017-09-02 18:41             ` Noam Postavsky
2017-09-03 17:48               ` Michael Heerdegen
2017-09-03 22:39                 ` Mark Oteiza
2017-09-04  0:48                   ` Mark Oteiza
2017-09-04 14:12                   ` Michael Heerdegen
2017-09-05  3:47                   ` Mark Oteiza
2017-09-05 15:04                     ` Michael Heerdegen
2017-09-06 12:12                     ` Michael Heerdegen
2017-09-06 13:06                       ` Mark Oteiza
2017-09-06 19:04                         ` Michael Heerdegen
2017-09-04  1:13               ` Mark Oteiza
2017-09-05  3:55                 ` Mark Oteiza
2017-09-09  0:33                   ` Mark Oteiza [this message]
2017-09-12 12:39                     ` Michael Heerdegen
2017-09-12 13:09                       ` Mark Oteiza
2017-09-12 18:44                         ` Michael Heerdegen
2017-09-12 20:21                           ` Mark Oteiza
2017-09-13 10:16                             ` Michael Heerdegen
2017-09-13 11:48                               ` Mark Oteiza
2017-09-13 16:46                                 ` Michael Heerdegen
2017-09-13 16:49                                   ` Mark Oteiza
2017-09-13 17:05                                     ` Michael Heerdegen
2017-09-13 17:28                                       ` Mark Oteiza
2017-09-13 17:49                                         ` Michael Heerdegen
2017-09-12 12:13                   ` Michael Heerdegen
2017-09-12 14:29                     ` Mark Oteiza

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