From: "Roland Winkler" <winkler@gnu.org>
To: 27674@debbugs.gnu.org
Subject: bug#27674: 26.0.50; cl-progv: strange scoping due to implementation
Date: Sat, 15 Jul 2017 15:46:32 -0500 [thread overview]
Message-ID: <32552.74010.592567.22890@gargle.gargle.HOWL> (raw)
In-Reply-To: <87mv87t817.fsf@drachen>
For the records:
Essentially, Michael's examples expand to
(let ((x 0))
(let ((fun (lambda () x)))
(eval `(let ((x 1))
(funcall ',fun)))))
(let ((fun (lambda () x)))
(eval `(let ((x 1))
(funcall ',fun))))
With dynamic binding, both examples return 1. With lexical binding,
the compiler complains about
reference to free variable `x'
in the 1st line of the 2nd example. Then, the 1st example returns 0,
the 2nd example returns 1.
next prev parent reply other threads:[~2017-07-15 20:46 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
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 [this message]
2017-07-14 16:00 ` Michael Heerdegen
2017-07-19 13:55 ` Stefan Monnier
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