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From: | Andreas Röhler |
Subject: | bug#55885: 29.0.50; missed error message |
Date: | Sun, 12 Jun 2022 09:30:13 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 |
Andreas Röhler <andreas.roehler@easy-emacs.de> writes:The code below evaluates to nil, but should send an error: (defvar foo-bar-baz (cond (t () (when foo-bar-baz nil)))) Emacs 28.1 tells as expected: Debugger entered--Lisp error: (void-variable foo-bar-baz)I'm unable to reproduce the problem. Both Emacs 29 or 28.1 give an error if I eval that _expression_. Perhaps you have that variable defined somewhere else so that it doesn't bug out for you?
Seems my example doesn't work. Herewith the original code considered faulty from my init:
(defvar ar-emacs-dir
(cond ((boundp 'lisp-directory)
(replace-regexp-in-string "/[^/]+/$" "" lisp-directory))
((< (string-to-number (substring emacs-version 0 2))
27)
(alt-emacsdir))
(t (progn (elisp-find-definition "featurep")
(replace-regexp-in-string "/[^/]+/$" ""
(file-name-directory (buffer-file-name))))
(when ar-emacs-dir (kill-buffer "fns.c")))))
From Emacs 29.0.50 it will evaluate
==> "MY_DIR/emacs-20220604"
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