module Rasti
  module Types
    class Symbol
      class << self

        include Castable

        private

        def valid?(value)
          !value.nil? && (value.respond_to?(:to_sym) || value.respond_to?(:to_s))
        end

        def transform(value)
          value.respond_to?(:to_sym) ? value.to_sym : value.to_s.to_sym
        end

      end
    end
  end
end