# File lib/soap/mapping/mapping.rb, line 40
  def self.obj2soap(obj, registry = nil, type = nil, opt = EMPTY_OPT)
    registry ||= Mapping::DefaultRegistry
    soap_obj = nil
    protect_threadvars(:SOAPMarshalDataKey, :SOAPExternalCES, :SOAPMarshalNoReference) do
      Thread.current[:SOAPMarshalDataKey] = {}
      Thread.current[:SOAPExternalCES] = opt[:external_ces] || $KCODE
      Thread.current[:SOAPMarshalNoReference] = opt[:no_reference]
      soap_obj = _obj2soap(obj, registry, type)
    end
    soap_obj
  end