From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Andreas Politz <politza@hochschule-trier.de>,
Daniel Colascione <dancol@dancol.org>
Cc: 25965@debbugs.gnu.org
Subject: bug#25965: 26.0.50; iter-lambda may evaluate certain forms twice
Date: Wed, 08 Mar 2017 16:52:13 -0500 [thread overview]
Message-ID: <jwv1su74ezy.fsf-monnier+bug#25965@gnu.org> (raw)
In-Reply-To: <87efydcvvr.fsf@luca> (Andreas Politz's message of "Sat, 04 Mar 2017 09:02:32 +0100")
> The unwind-protect form is created in this function.
>
> #+BEGIN_SRC emacs-lisp
> (defun cps--make-dynamic-binding-wrapper (dynamic-var static-var)
> (cl-assert lexical-binding)
> (lambda (form)
> `(let ((,dynamic-var ,static-var))
> (unwind-protect ; Update the static shadow after evaluation is done
> ,form
> (setf ,static-var ,dynamic-var))
> ,form)))
> #+END_SRC
>
> And it seems to me that the second occurrence of ,form is just an
> error.
Hmm... indeed that looks odd, and maybe just removing the second ,form
is the right fix. Daniel, do you happen to remember what the second
,form above is meant to do?
Stefan
next prev parent reply other threads:[~2017-03-08 21:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-04 8:02 bug#25965: 26.0.50; iter-lambda may evaluate certain forms twice Andreas Politz
2017-03-08 21:52 ` Stefan Monnier [this message]
2017-03-08 22:08 ` Daniel Colascione
2017-09-21 21:36 ` Gemini Lasswell
2017-10-05 19:51 ` Gemini Lasswell
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