class Addressable::URI

def password=(new_password)
  if new_password && !new_password.respond_to?(:to_str)
    raise TypeError, "Can't convert #{new_password.class} into String."
  end
  @password = new_password ? new_password.to_str : nil
  # You can't have a nil user with a non-nil password
  @password ||= nil
  @user ||= nil
  if @password != nil
    @user = EMPTY_STR if @user.nil?
  end
  # Reset dependent values
  remove_instance_variable(:@userinfo) if defined?(@userinfo)
  remove_instance_variable(:@normalized_userinfo) if defined?(@normalized_userinfo)
  remove_instance_variable(:@authority) if defined?(@authority)
  remove_instance_variable(:@normalized_password) if defined?(@normalized_password)
  remove_composite_values
  # Ensure we haven't created an invalid URI
  validate()
end