Overriding #new

gistfile1.rb

class A
  def self.new(arg1, arg2)
    B.new(arg2, arg1)
  end
end

class B
  def initialize(alpha, beta)
    puts "#{alpha}, #{beta}"
  end
end

a = A.new(1, 2)
# => 2, 1
puts a.class
# => B