helpful

commit 1e5ce8b2cc91dad27fa460c4b473ed44fb36771a
parent 7319a7a638fc2f8bcea5d1ffecab13a4c18818cf
Author: Wilfred Hughes <me@wilfred.me.uk>
Date:   Mon,  2 Oct 2017 14:03:26 -0500

Merge pull request #43 from narendraj9/master

Guard helpful-update against keys bound to undefined commands
Diffstat:
M
helpful.el
 | 
4
++++

1 file changed, 4 insertions(+), 0 deletions(-)
diff --git a/helpful.el b/helpful.el
@@ -747,6 +747,10 @@ For example, \"(some-func FOO &optional BAR)\"."
     (unless sym
       (user-error "No command is bound to %s"
                   (key-description key-sequence)))
+    (unless (commandp sym)
+      (user-error "%s is bound to symbol %s which is not a command"
+                  (key-description key-sequence)
+                  sym))
     (pop-to-buffer (helpful--buffer sym t))
     (helpful-update)))