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Edebug doesn't deal well with backtracking out of definitions, see Bug#41988. Rather than trying to support this rare situation (e.g. by implementing a multipass parser), prevent it by adding an implicit gate. * lisp/emacs-lisp/edebug.el (edebug--match-&-spec-op): Disable backtracking when hitting a &define keyword. * test/lisp/emacs-lisp/edebug-tests.el (edebug-tests-duplicate-&define): New unit test. (edebug-tests--duplicate-&define): New helper macro. * doc/lispref/edebug.texi (Backtracking): Mention &define in the list of constructs that disable backtracking. * etc/NEWS: Document new behavior.
This directory contains the architecture-independent files used by or with Emacs. This includes some text files of documentation for GNU Emacs or of interest to Emacs users, and the file of dumped docstrings for Emacs functions and variables. COPYRIGHT AND LICENSE INFORMATION FOR IMAGE FILES File: emacs.icon Author: Sun Microsystems, Inc Copyright (C) 1999, 2001-2021 Free Software Foundation, Inc. License: GNU General Public License version 3 or later (see COPYING)