compile.c: try to convert in massign `for`

* compile.c (compile_for_masgn): try to convert to an Array if an
  element of massign `for` is not an Array.
  [ruby-core:84931] [Bug #14374]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62073 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/test/ruby/test_iterator.rb b/test/ruby/test_iterator.rb
index 9bfa947607..ebfb60354a 100644
--- a/test/ruby/test_iterator.rb
+++ b/test/ruby/test_iterator.rb
@@ -107,6 +107,16 @@ class TestIterator < Test::Unit::TestCase
     assert_equal([1, 2, 3, 4, 5, 6, 7], x)
   end
 
+  def test_array_for_masgn
+    a = [Struct.new(:to_ary).new([1,2])]
+    x = []
+    a.each {|i,j|x << [i,j]}
+    assert_equal([[1,2]], x)
+    x = []
+    for i,j in a; x << [i,j]; end
+    assert_equal([[1,2]], x)
+  end
+
   def test_append_method_to_built_in_class
     x = [[1,2],[3,4],[5,6]]
     assert_equal(x.iter_test1{|e|e}, x.iter_test2{|e|e})