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-rw-r--r--lisp/emacs-lisp/edebug.el18
1 files changed, 10 insertions, 8 deletions
diff --git a/lisp/emacs-lisp/edebug.el b/lisp/emacs-lisp/edebug.el
index f1455ffe73b..365bc748741 100644
--- a/lisp/emacs-lisp/edebug.el
+++ b/lisp/emacs-lisp/edebug.el
@@ -1942,14 +1942,16 @@ a sequence of elements."
;; Normally, &define is interpreted specially other places.
;; This should only be called inside of a spec list to match the remainder
;; of the current list. e.g. ("lambda" &define args def-body)
- (edebug-make-form-wrapper
- cursor
- (edebug-before-offset cursor)
- ;; Find the last offset in the list.
- (let ((offsets (edebug-cursor-offsets cursor)))
- (while (consp offsets) (setq offsets (cdr offsets)))
- offsets)
- specs))
+ (prog1 (edebug-make-form-wrapper
+ cursor
+ (edebug-before-offset cursor)
+ ;; Find the last offset in the list.
+ (let ((offsets (edebug-cursor-offsets cursor)))
+ (while (consp offsets) (setq offsets (cdr offsets)))
+ offsets)
+ specs)
+ ;; Stop backtracking here (Bug#41988).
+ (setq edebug-gate t)))
(cl-defmethod edebug--match-&-spec-op ((_ (eql &name)) cursor specs)
"Compute the name for `&name SPEC FUN` spec operator.