From 36585f17fb8deb2042c36842c68637b740565811 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 1 Oct 2007 06:57:56 +0000
Subject: [PATCH] * gc.c (id2ref): skip ICLASS.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13583 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 4 ++++
 gc.c      | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 3733c10b78..5f9a5e1d47 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Oct  1 15:57:49 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (id2ref): skip ICLASS.
+
 Mon Oct  1 15:29:35 2007  Tanaka Akira  <akr@fsij.org>
 
 	* bootstraptest/runner.rb (assert_normal_exit): use `` instead of
diff --git a/gc.c b/gc.c
index 4b239b634a..9bbca22588 100644
--- a/gc.c
+++ b/gc.c
@@ -2069,7 +2069,8 @@ id2ref(VALUE obj, VALUE objid)
 	return ID2SYM(symid);
     }
 
-    if (!is_pointer_to_heap((void *)ptr) || BUILTIN_TYPE(ptr) >= T_VALUES) {
+    if (!is_pointer_to_heap((void *)ptr) ||
+	BUILTIN_TYPE(ptr) >= T_VALUES || BUILTIN_TYPE(ptr) == T_ICLASS) {
 	rb_raise(rb_eRangeError, "%p is not id value", p0);
     }
     if (BUILTIN_TYPE(ptr) == 0 || RBASIC(ptr)->klass == 0) {