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-rw-r--r--lisp/emacs-lisp/map.el3
1 files changed, 2 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/map.el b/lisp/emacs-lisp/map.el
index fec06343f7c..7d839f822d2 100644
--- a/lisp/emacs-lisp/map.el
+++ b/lisp/emacs-lisp/map.el
@@ -193,7 +193,8 @@ MAP can be a list, hash-table or array."
TYPE can be one of the following symbols: list or hash-table."
(pcase type
(`list (map-pairs map))
- (`hash-table (map--into-hash-table map))))
+ (`hash-table (map--into-hash-table map))
+ (t (error "Not a map type name: %s" type))))
(defmacro map--dispatch (spec &rest args)
"Evaluate one of the provided forms depending on the type of MAP.