#scotruby exercise

my_accessor.rb

module Mod
  
  def my_accessor(field)
    @my_attributes ||= Array.new
    Mod.add_all_attributes(field)
    attr_accessor field
    @my_attributes << field
    
  end
  
  def my_attributes
    @my_attributes
  end
  
  def self.all_attributes
    @all_attributes
  end
  
  def self.add_all_attributes(field)
    @all_attributes ||= Array.new
    @all_attributes << field
  end
  
end

class MyClass
  self.extend(Mod)
  my_accessor :field1
  my_accessor :field2
end

class NewClass
  self.extend(Mod)
  my_accessor :field3
end

m = MyClass.new
m.field1 = 99
puts m.field1

n = NewClass.new
n.field3 = 101
puts n.field3

p MyClass.my_attributes
p Mod.all_attributes