diff options
Diffstat (limited to 'lisp/emacs-lisp')
| -rw-r--r-- | lisp/emacs-lisp/macroexp.el | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/macroexp.el b/lisp/emacs-lisp/macroexp.el index 9af75320ec0..a04b3951c6a 100644 --- a/lisp/emacs-lisp/macroexp.el +++ b/lisp/emacs-lisp/macroexp.el @@ -33,7 +33,8 @@ (defvar macroexpand-all-environment nil) (defun macroexp--cons (car cdr original-cons) - "Return (CAR . CDR), using ORIGINAL-CONS if possible." + "Return ORIGINAL-CONS if the car/cdr of it is `eq' to CAR and CDR, respectively. +If not, return (CAR . CDR)." (if (and (eq car (car original-cons)) (eq cdr (cdr original-cons))) original-cons (cons car cdr))) |