sequences emit

2 files changed, 14 insertions, 0 deletions

diff --git a/lib/psych/nodes/node.rb b/lib/psych/nodes/node.rb
index b5ae131..a63fc60 100644
--- a/lib/psych/nodes/node.rb
+++ b/lib/psych/nodes/node.rb
@@ -1,3 +1,5 @@
+require 'stringio'
+
 module Psych
   module Nodes
     ###
@@ -15,6 +17,12 @@ module Psych
       def to_ruby
         Visitors::ToRuby.new.accept self
       end
+
+      def to_yaml
+        io = StringIO.new
+        Visitors::Emitter.new(io).accept self
+        io.string
+      end
     end
   end
 end
diff --git a/lib/psych/visitors/emitter.rb b/lib/psych/visitors/emitter.rb
index e2dd0be..a0ff9d9 100644
--- a/lib/psych/visitors/emitter.rb
+++ b/lib/psych/visitors/emitter.rb
@@ -20,6 +20,12 @@ module Psych
       visitor_for(Nodes::Scalar) do |o|
         @handler.scalar o.value, o.anchor, o.tag, o.plain, o.quoted, o.style
       end
+
+      visitor_for(Nodes::Sequence) do |o|
+        @handler.start_sequence o.anchor, o.tag, o.implicit, o.style
+        o.children.each { |c| c.accept self }
+        @handler.end_sequence
+      end
     end
   end
 end