GNU bug report logs - #51695
29.0.50; lexical scope closure, interactive spec byte compiler warnings/usage issue

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Package: emacs;

Reported by: Emanuel Berg <moasenwood <at> zoho.eu>

Date: Mon, 8 Nov 2021 23:41:02 UTC

Severity: normal

Tags: confirmed

Found in version 29.0.50

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

Full log

Message #14 received at 51695 <at> debbugs.gnu.org (full text, mbox):

From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: 51695 <at> debbugs.gnu.org
Subject: Re: bug#51695: 29.0.50; lexical scope closure, interactive spec
 byte compiler warnings/usage issue
Date: Wed, 10 Nov 2021 00:32:03 +0100

Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs <at> gnu.org> writes:

> [...] so in the mean time I recommend you find some workaround

Since one seems to need to make use of the global environment at some
point, I suggest to use a named function as workaround, like in

#+begin_src emacs-lisp
(let* ((data-item 1)
       (more-data 2))
  (defalias 'echo-data--interactive
    (lambda ()
      (list (read-number "number: " (or data-item more-data)))))
  (declare-function echo-data--interactive test) ;defun was not top-level
  (defun echo-data (&optional data)
    (interactive (echo-data--interactive))
    (message "data: %s" (or data data-item)) ))
#+end_src

Michael
This bug report was last modified 2 years and 244 days ago.

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