From b09eabd430d92cdae011bb7ad08a3300049a4392 Mon Sep 17 00:00:00 2001
From: shugo <shugo@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 6 Feb 2010 15:26:34 +0000
Subject: * class.c (rb_class_init_copy): raise a TypeError if the argument is 
  BasicObject.  [ruby-core:27060]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26607 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 class.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'class.c')

diff --git a/class.c b/class.c
index 6674ae1a9d..fed2edf4ee 100644
--- a/class.c
+++ b/class.c
@@ -180,6 +180,9 @@ rb_mod_init_copy(VALUE clone, VALUE orig)
 VALUE
 rb_class_init_copy(VALUE clone, VALUE orig)
 {
+    if (orig == rb_cBasicObject) {
+	rb_raise(rb_eTypeError, "can't copy the root class");
+    }
     if (RCLASS_SUPER(clone) != 0 || clone == rb_cBasicObject) {
 	rb_raise(rb_eTypeError, "already initialized class");
     }
-- 
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