structs and ostructs

gistfile1.rb

Point = Struct.new(:x, :y)
origin = Point(0,0)

# OStructs are particularly good for configuration objects. Since any method works to set data in an OStruct, you don't have to 
# worry about enumerating every single option that you need:

require 'ostruct'

def set_options
  opts = OpenStruct.new
  yield opts
  opts
end

options = set_options do |o|
  o.set_foo = true
  o.load_path = "whatever:something"
end

options #=> #<OpenStruct set_foo=true, load_path="whatever:something"> 

# structs for domain concepts:

class Person
  attr_accessor :name, :birthday

  Birthday = Struct.new(:day, :month, :year)

  def initialize(opts = {})
    @name = opts[:name]
    @birthday = Birthday.new(opts[:day], opts[:month], opts[:year])
  end
end