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authorStefan Monnier <monnier@iro.umontreal.ca>2022-08-14 12:29:17 -0400
committerStefan Monnier <monnier@iro.umontreal.ca>2022-08-14 12:30:06 -0400
commit3a9c803f24d3919ba308acc43fb3be468d23775e (patch)
tree5a7485ea366b8d4dacf72a9db17686e2c253f20e
parent1faeef7924c535e9003b617b723b85567a821f5c (diff)
downloademacs-3a9c803f24d3919ba308acc43fb3be468d23775e.tar.gz
* lisp/emacs-lisp/ring.el (ring): Define as a type
-rw-r--r--lisp/emacs-lisp/ring.el4
1 files changed, 4 insertions, 0 deletions
diff --git a/lisp/emacs-lisp/ring.el b/lisp/emacs-lisp/ring.el
index 2b2039f9d15..e8b92a532fa 100644
--- a/lisp/emacs-lisp/ring.el
+++ b/lisp/emacs-lisp/ring.el
@@ -42,6 +42,8 @@
;;; Code:
+(eval-when-compile (require 'cl-lib))
+
;;; User Functions:
;;;###autoload
@@ -51,6 +53,8 @@
(consp (cdr x)) (integerp (cadr x))
(vectorp (cddr x))))
+(cl-deftype ring () '(satisfies ring-p))
+
;;;###autoload
(defun make-ring (size)
"Make a ring that can contain SIZE elements."