From 05b00a14c5081ee4bf362b12839dcbb94df1169a Mon Sep 17 00:00:00 2001
From: h2so5 <mail@h2so5.net>
Date: Wed, 17 Dec 2014 14:01:39 +0900
Subject: String#[] should reject nil index

---
 src/string.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/string.c')

diff --git a/src/string.c b/src/string.c
index 1c54ffa72..2b1a27fee 100644
--- a/src/string.c
+++ b/src/string.c
@@ -781,6 +781,7 @@ num_index:
         }
       }
     default:
+      if (mrb_nil_p(indx)) mrb_raise(mrb, E_TYPE_ERROR, "can't convert nil into Integer");
       idx = mrb_fixnum(indx);
       goto num_index;
   }
-- 
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