class EacRubyUtils::Immutable::BaseAccessor

def duplicate_object(object)
  accessor_new_value = yield(immutable_value_get(object))
  new_values = object.send(:immutable_values_get).merge(name => accessor_new_value)
  r = object.class.new(*object.immutable_constructor_args)
  r.send(:immutable_values_set, new_values)
  r
end

def immutable_value_get(object)
  object.send(:immutable_values_get)[name]
end