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From: Alex <agrambot@gmail.com>
To: 25154@debbugs.gnu.org
Subject: bug#25154: 25.1; Bindings in cl-letf are in reverse order
Date: Fri, 09 Dec 2016 17:36:15 -0600	[thread overview]
Message-ID: <8737hwllow.fsf@gmail.com> (raw)

Compare the following:

(let ((x 5)
      (x 6))
  (+ x 10))

=> 16

(cl-letf ((x 5)
          (x 6))
  (+ x 10))

=> 15


This also occurs when using non-trivial places:

(setq v (vector 1 2 3 4 5))

(cl-letf (((aref v 1) 10)
          ((aref v 1) 20))
  (aref v 1))

=> 10


I ran into this when using two different setters that sometimes
indirectly modify the same variable. The current behaviour makes the
result of that unexpected.






             reply	other threads:[~2016-12-09 23:36 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-09 23:36 Alex [this message]
2016-12-10  4:29 ` bug#25154: 25.1; Bindings in cl-letf are in reverse order Alex
2016-12-10  7:22 ` Eli Zaretskii
2016-12-10  7:43   ` Tino Calancha
2016-12-10 13:41     ` Philipp Stephani
2016-12-10 14:01       ` Tino Calancha
2016-12-10 14:09       ` Eli Zaretskii
2016-12-23 12:17         ` Philipp Stephani
2016-12-23 12:46           ` Tino Calancha
2016-12-23 13:53           ` Eli Zaretskii
2016-12-23 16:30             ` Philipp Stephani
2016-12-10 18:05   ` Alex
2016-12-10 18:14     ` npostavs
2016-12-10 19:41       ` Alex
2016-12-10 18:27     ` Eli Zaretskii
2016-12-10 19:52       ` Alex
2016-12-11  3:11         ` Tino Calancha

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