# File lib/soap/mapping/mapping.rb, line 133
  def self._soap2obj(node, registry, klass = nil)
    if node.nil?
      return nil
    elsif node.is_a?(SOAPReference)
      target = node.__getobj__
      # target.id is not Object#id but SOAPReference#id
      if referent = Thread.current[:SOAPMarshalDataKey][target.id] and
          !Thread.current[:SOAPMarshalNoReference]
        return referent
      else
        return _soap2obj(target, registry, klass)
      end
    end
    return registry.soap2obj(node, klass)
  end