From e75f97c1d90a5d2a64b6ac844328fdda09cd080a Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 3 Aug 2016 08:15:08 +0000
Subject: object.c: restrict freeze option

* object.c (rb_obj_clone2): restrict freeze option to true other
  than false which only has the effect.  [Feature #12300]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55808 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 object.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'object.c')

diff --git a/object.c b/object.c
index a4a87db4d6..c58a46b293 100644
--- a/object.c
+++ b/object.c
@@ -339,6 +339,10 @@ rb_obj_clone2(int argc, VALUE *argv, VALUE obj)
     if (!NIL_P(opt)) {
 	rb_get_kwargs(opt, keyword_ids, 0, 1, kwargs);
 	kwfreeze = kwargs[0];
+	if (kwfreeze != Qundef && kwfreeze != Qtrue && kwfreeze != Qfalse) {
+	    rb_raise(rb_eArgError, "unexpected value for freeze: %s",
+		     rb_builtin_class_name(kwfreeze));
+	}
     }
 
     if (rb_special_const_p(obj)) {
-- 
cgit v1.2.3