From ebb15cc6c17e33b030b511fff8b5722a8238ace5 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@gmail.com>
Date: Mon, 13 May 2019 02:33:29 +0900
Subject: [PATCH] Reline.completion_proc= should raise ArgumentError

When the value is not Proc.
---
 lib/reline.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/reline.rb b/lib/reline.rb
index fbe39f54fd..9773f5cb3b 100644
--- a/lib/reline.rb
+++ b/lib/reline.rb
@@ -67,6 +67,7 @@ module Reline
     @@completion_proc
   end
   def self.completion_proc=(p)
+    raise ArgumentError unless p.is_a?(Proc)
     @@completion_proc = p
   end