ext/psych/lib/psych/visitors/visitor.rb


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module Psych
  module Visitors
    class Visitor
      attr_reader :started, :finished
      alias :finished? :finished
      alias :started? :started

      def initialize
        @started  = false
        @finished = false
      end

      def accept target
        case target
        when Psych::Nodes::Scalar   then visit_Psych_Nodes_Scalar target
        when Psych::Nodes::Mapping  then visit_Psych_Nodes_Mapping target
        when Psych::Nodes::Sequence then visit_Psych_Nodes_Sequence target
        when Psych::Nodes::Alias    then visit_Psych_Nodes_Alias target
        when Psych::Nodes::Document then visit_Psych_Nodes_Document target
        when Psych::Nodes::Stream   then visit_Psych_Nodes_Stream target
        else
          raise "Can't handle #{target}"
        end
      end
    end
  end
end