class Deterministic::EnumBuilder::DataType

Public Class Methods

create(parent, name, args) click to toggle source
# File lib/deterministic/enum.rb, line 65
def self.create(parent, name, args)
  raise ArgumentError, "#{args} may not contain the reserved name :value" if args.include? :value
  dt = Class.new(parent)

  dt.instance_eval {
    class << self; public :new; end
    include AnyEnum
    define_method(:args) { args }

    define_method(:parent) { parent }
    private :parent
  }

  if args.count == 0
    dt.instance_eval {
      include Nullary
      private :value
    }
  elsif args.count == 1
    dt.instance_eval {
      define_method(args[0].to_sym) { value }
    }
  else
    dt.instance_eval {
      include Binary

      args.each do |m|
        define_method(m) do
          @value[m]
        end
      end
    }
  end
  dt
end