From 1422e5763005e50ce5f7874910e1a130a12091c9 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Sun, 13 Nov 2016 16:12:13 +0900
Subject: move mrb_str_dup() to mrb_class_path; ref #2470

Class#to_s used to return same string repeatedly,
that mean you can modify "class name" by modifying
the return value from Class#to_s.
---
 src/class.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/class.c')

diff --git a/src/class.c b/src/class.c
index 7097a593a..d044cb68a 100644
--- a/src/class.c
+++ b/src/class.c
@@ -1539,7 +1539,7 @@ mrb_class_path(mrb_state *mrb, struct RClass *c)
     }
     mrb_obj_iv_set(mrb, (struct RObject*)c, classpath, path);
   }
-  return path;
+  return mrb_str_dup(mrb, path);
 }
 
 MRB_API struct RClass *
-- 
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