module Mutant
  class Zombifier
    # File containing source beeing zombified
    class File
      include NodeHelpers, Adamantium::Flat, Concord::Public.new(:path)

      # Zombify contents of file
      #
      # @return [self]
      #
      # @api private
      #
      def zombify(namespace)
        $stderr.puts("Zombifying #{path.to_s}")
        eval(
          Unparser.unparse(namespaced_node(namespace)),
          TOPLEVEL_BINDING,
          path.to_s
        )
        self
      end

    private

      # Return node
      #
      # @return [Parser::AST::Node]
      #
      # @api private
      #
      def node
        Parser::CurrentRuby.parse(path.read)
      end

      # Return namespaced root
      #
      # @param [Symbol] namespace
      #
      # @return [Parser::AST::Node]
      #
      # @api private
      #
      def namespaced_node(namespace)
        s(:module, s(:const, nil, namespace), node)
      end

    end # File
  end # Zombifier
end # Mutant