* ext/psych/lib/psych/visitors/yaml_tree.rb: register time objects so

they are referenced as ids during output.
* test/psych/test_date_time.rb: corresponding test.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41804 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Sat Jul  6 04:49:38 2013  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: register time objects so
+	  they are referenced as ids during output.
+	* test/psych/test_date_time.rb: corresponding test.
+
 Fri Jul  5 20:46:39 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* test/ruby/test_unicode_escape.rb (TestUnicodeEscape#test_basic): this

ext/psych/lib/psych/visitors/yaml_tree.rb

@@ -216,7 +216,7 @@ module Psych
 
       def visit_Time o
         formatted = format_time o
-        @emitter.scalar formatted, nil, nil, true, false, Nodes::Scalar::ANY
+        register o, @emitter.scalar(formatted, nil, nil, true, false, Nodes::Scalar::ANY)
       end
 
       def visit_Rational o

test/psych/test_date_time.rb

@@ -13,5 +13,13 @@ module Psych
       dt = DateTime.now
       assert_cycle dt
     end
+
+    def test_alias_with_time
+      t    = Time.now
+      h    = {:a => t, :b => t}
+      yaml = Psych.dump h
+      assert_match('&', yaml)
+      assert_match('*', yaml)
+    end
   end
 end