From a7c32bf81d3391cfb78cfda278f469717d0fb794 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 8 Jul 2009 10:10:28 +0000
Subject: [PATCH] * error.c (rb_check_type): rejects typed data.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23992 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 4 ++++
 error.c   | 4 +++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 54d3067c8d..e83b5a7046 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Jul  8 19:10:22 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* error.c (rb_check_type): rejects typed data.
+
 Wed Jul  8 18:28:04 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* proc.c ({proc,binding,method}_data_type): typed.
diff --git a/error.c b/error.c
index c3738db856..c4f4938cc6 100644
--- a/error.c
+++ b/error.c
@@ -282,12 +282,14 @@ rb_check_type(VALUE x, int t)
     const struct types *type = builtin_types;
     const struct types *const typeend = builtin_types +
 	sizeof(builtin_types) / sizeof(builtin_types[0]);
+    int xt;
 
     if (x == Qundef) {
 	rb_bug("undef leaked to the Ruby space");
     }
 
-    if (TYPE(x) != t) {
+    xt = TYPE(x);
+    if (xt != t || (xt == T_DATA && RTYPEDDATA_P(x))) {
 	while (type < typeend) {
 	    if (type->type == t) {
 		const char *etype;