From e3cc8344866ee864c42e4fd61a336c2c67f72ed3 Mon Sep 17 00:00:00 2001
From: nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 19 Feb 2011 13:41:19 +0000
Subject:  * vm_insnhelper.c (vm_check_if_namespace): guard temporary object   
 from GC.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30916 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 vm_insnhelper.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'vm_insnhelper.c')

diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index 8cd066f532..139a2a24ab 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -1135,13 +1135,15 @@ vm_get_const_base(const rb_iseq_t *iseq, const VALUE *lfp, const VALUE *dfp)
 static inline void
 vm_check_if_namespace(VALUE klass)
 {
+    VALUE str;
     switch (TYPE(klass)) {
       case T_CLASS:
       case T_MODULE:
 	break;
       default:
+	str = rb_inspect(klass);
 	rb_raise(rb_eTypeError, "%s is not a class/module",
-		 RSTRING_PTR(rb_inspect(klass)));
+		 RSTRING_PTR(RB_GC_GUARD(str)));
     }
 }
 
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