From: Stefan Israelsson Tampe <stefan.itampe@gmail.com>
To: 39811@debbugs.gnu.org
Subject: bug#39811: Missing dynwind exit application
Date: Thu, 27 Feb 2020 19:59:25 +0100 [thread overview]
Message-ID: <CAGua6m2ez-P3Bic=2kBgNf-QzYAiGbA0Zkms9A5XE-VaOEbQ1Q@mail.gmail.com> (raw)
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Executing this code on guile-3.0.0:
(dynamic-wind
(lambda () (pk 'enter))
(lambda () (catch #t
(lambda () (throw 1))
(lambda x (pk 'catch x) (apply throw x))))
(lambda () (pk 'leave)))
Leads to the output:
scheme@(guile-user)> (load "bug.scm")
;;; (enter)
;;; (catch (a))
ice-9/boot-9.scm:1669:16: In procedure raise-exception:
Throw to key `a' with args `()'.
What, it does not execute the leave part of the dynamic wind.
This works however,
(catch #t
(lambda ()
(dynamic-wind
(lambda () (pk 'enter))
(lambda () (catch #t
(lambda () (throw 'a))
(lambda x (pk 'catch x) (apply throw x))))
(lambda () (pk 'leave))))
(lambda x #f))
So is this how it should be?
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next reply other threads:[~2020-02-27 18:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-27 18:59 Stefan Israelsson Tampe [this message]
2020-03-03 20:33 ` bug#39811: Missing dynwind exit application Andy Wingo
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