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* bug#27674: 26.0.50; cl-progv: strange scoping due to implementation
@ 2017-07-12 21:53 Michael Heerdegen
  2017-07-13  0:21 ` npostavs
  0 siblings, 1 reply; 14+ messages in thread
From: Michael Heerdegen @ 2017-07-12 21:53 UTC (permalink / raw)
  To: 27674


Hello,

The way `cl-progv' is implemented, we have some strange effects
happening to closures in the body.  For example, with lexical-binding
on,

(let ((x 0))
  (cl-progv (list 'x) (list 1)
    (funcall (lambda () x))))

yields 0, and

(cl-progv (list 'x) (list 1)
  (funcall (lambda () x)))

yields 1.  That isn't consistent (FWIW I would expect `1' in both
cases).


TIA,

Michael.



In GNU Emacs 26.0.50 (build 7, x86_64-pc-linux-gnu, GTK+ Version 3.22.16)
 of 2017-07-12 built on drachen
Repository revision: dde7f2d48b53996bdf767a8cf91aafc2e10add23
Windowing system distributor 'The X.Org Foundation', version 11.0.11903000
System Description:	Debian GNU/Linux testing (buster)






^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2017-07-19 13:55 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-07-12 21:53 bug#27674: 26.0.50; cl-progv: strange scoping due to implementation Michael Heerdegen
2017-07-13  0:21 ` npostavs
2017-07-13  0:36   ` Michael Heerdegen
2017-07-13  0:50     ` npostavs
2017-07-13  1:11       ` Michael Heerdegen
2017-07-13  1:54         ` npostavs
2017-07-13  2:15           ` Michael Heerdegen
2017-07-13  2:41             ` npostavs
2017-07-13 14:40               ` Roland Winkler
2017-07-13 15:07                 ` Noam Postavsky
2017-07-14 14:20                   ` Michael Heerdegen
2017-07-15 20:46                     ` Roland Winkler
2017-07-14 16:00               ` Michael Heerdegen
2017-07-19 13:55             ` Stefan Monnier

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