From d0a98a0e90c9ff969da0c477f0f4cedb018b54b1 Mon Sep 17 00:00:00 2001
From: marcandre <marcandre@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 2 Apr 2010 22:25:49 +0000
Subject: * array.c (rb_ary_product): Test for reentry

* test/ruby/test_array.rb: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27201 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 array.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'array.c')

diff --git a/array.c b/array.c
index 64bfcfcf33..6b0396753f 100644
--- a/array.c
+++ b/array.c
@@ -4117,6 +4117,9 @@ rb_ary_product(int argc, VALUE *argv, VALUE ary)
 	/* put it on the result array */
 	if(NIL_P(result)) {
 	    rb_yield(subarray);
+	    if (RBASIC(t0)->klass) {
+		rb_raise(rb_eRuntimeError, "product reentered");
+	    }
 	}
 	else {
 	    rb_ary_push(result, subarray);
-- 
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