adding module serialization support

3 files changed, 23 insertions, 1 deletions

diff --git a/lib/psych/visitors/to_ruby.rb b/lib/psych/visitors/to_ruby.rb
index cb0afd2..3f5be4d 100644
--- a/lib/psych/visitors/to_ruby.rb
+++ b/lib/psych/visitors/to_ruby.rb
@@ -57,7 +57,7 @@ module Psych
           Complex(o.value)
         when "!ruby/object:Rational"
           Rational(o.value)
-        when "!ruby/class"
+        when "!ruby/class", "!ruby/module"
           resolve_class o.value
         when "tag:yaml.org,2002:float", "!float"
           Float(@ss.tokenize(o.value))
diff --git a/lib/psych/visitors/yaml_tree.rb b/lib/psych/visitors/yaml_tree.rb
index de35c76..4019859 100644
--- a/lib/psych/visitors/yaml_tree.rb
+++ b/lib/psych/visitors/yaml_tree.rb
@@ -246,6 +246,11 @@ module Psych
         end
       end
 
+      def visit_Module o
+        raise TypeError, "can't dump anonymous module: #{o}" unless o.name
+        @emitter.scalar o.name, nil, '!ruby/module', false, false, Nodes::Scalar::SINGLE_QUOTED
+      end
+
       def visit_Class o
         raise TypeError, "can't dump anonymous class: #{o}" unless o.name
         @emitter.scalar o.name, nil, '!ruby/class', false, false, Nodes::Scalar::SINGLE_QUOTED
diff --git a/test/psych/test_class.rb b/test/psych/test_class.rb
index 8fd4ad0..156f2fb 100644
--- a/test/psych/test_class.rb
+++ b/test/psych/test_class.rb
@@ -2,12 +2,21 @@ require 'psych/helper'
 
 module Psych
   class TestClass < TestCase
+    module Foo
+    end
+
     def test_cycle_anonymous_class
       assert_raises(::TypeError) do
         assert_cycle(Class.new)
       end
     end
 
+    def test_cycle_anonymous_module
+      assert_raises(::TypeError) do
+        assert_cycle(Module.new)
+      end
+    end
+
     def test_cycle
       assert_cycle(TestClass)
     end
@@ -15,5 +24,13 @@ module Psych
     def test_dump
       Psych.dump TestClass
     end
+
+    def test_cycle_module
+      assert_cycle(Foo)
+    end
+
+    def test_dump_module
+      Psych.dump Foo
+    end
   end
 end