enum.c: fix condition to recycle block argument

* enum.c (dont_recycle_block_arg): fix condition to recycle block
  argument.  lambda with rest can get internal array directly.
  [ruby-core:62060] [Bug #9749]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45603 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/test/ruby/test_enum.rb b/test/ruby/test_enum.rb
index 0fbfeebc2f..963cd94034 100644
--- a/test/ruby/test_enum.rb
+++ b/test/ruby/test_enum.rb
@@ -342,12 +342,22 @@ class TestEnumerable < Test::Unit::TestCase
     ary = []
     (1..10).each_slice(3) {|a| ary << a}
     assert_equal([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10]], ary)
+
+    bug9749 = '[ruby-core:62060] [Bug #9749]'
+    ary.clear
+    (1..10).each_slice(3, &lambda {|a, *| ary << a})
+    assert_equal([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10]], ary, bug9749)
   end
 
   def test_each_cons
     ary = []
     (1..5).each_cons(3) {|a| ary << a}
     assert_equal([[1, 2, 3], [2, 3, 4], [3, 4, 5]], ary)
+
+    bug9749 = '[ruby-core:62060] [Bug #9749]'
+    ary.clear
+    (1..5).each_cons(3, &lambda {|a, *| ary << a})
+    assert_equal([[1, 2, 3], [2, 3, 4], [3, 4, 5]], ary, bug9749)
   end
 
   def test_zip