From 71ead0787283b469f5e834cb1868a8caa78702f1 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@gmail.com>
Date: Thu, 11 Jul 2019 17:21:00 +0900
Subject: [PATCH] Add arg check to Reline.dig_perfect_match_proc=

---
 lib/reline.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/reline.rb b/lib/reline.rb
index c27e4a380d..bf8967c561 100644
--- a/lib/reline.rb
+++ b/lib/reline.rb
@@ -208,6 +208,7 @@ module Reline
     @@dig_perfect_match_proc
   end
   def self.dig_perfect_match_proc=(p)
+    raise ArgumentError unless p.is_a?(Proc)
     @@dig_perfect_match_proc = p
   end