From c27bd84806454f4627d8957a87b6186da1aab089 Mon Sep 17 00:00:00 2001
From: nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 2 Dec 2013 14:48:50 +0000
Subject: merge revision(s) 43929: [Backport #9178]

	* enumerator.c (enumerator_with_index): should not store local variable
	  address to memoise the arguments.  it is invalidated after the return.
	  [ruby-core:58692] [Bug #9178]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@43961 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_enumerator.rb | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_enumerator.rb b/test/ruby/test_enumerator.rb
index 8843d8d732..9e2502a965 100644
--- a/test/ruby/test_enumerator.rb
+++ b/test/ruby/test_enumerator.rb
@@ -112,6 +112,16 @@ class TestEnumerator < Test::Unit::TestCase
     assert_equal([[1,s],[2,s+1],[3,s+2]], @obj.to_enum(:foo, 1, 2, 3).with_index(s).to_a, bug8010)
   end
 
+  def test_with_index_dangling_memo
+    bug9178 = '[ruby-core:58692] [Bug #9178]'
+    assert_separately([], <<-"end;")
+    bug = "#{bug9178}"
+    e = [1].to_enum(:chunk).with_index {|c,i| i == 5}
+    assert_kind_of(Enumerator, e)
+    assert_equal([false, [1]], e.to_a[0], bug)
+    end;
+  end
+
   def test_with_object
     obj = [0, 1]
     ret = (1..10).each.with_object(obj) {|i, memo|
-- 
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