RubyにSmallTalk的な「メソッドとしての条件分岐」を追加する

fizzbuzz.rb

require './smalltalklike'

100.times { |i|
  ( i%15 == 0 ).if { 
    puts 'FizzBuzz'
  }.else { 
    ( i%3 == 0 ).if {
      puts 'Fizz'
    }.else {
      ( i%5 == 0 ).if {
        puts 'Buzz'
      }.else {
        puts i
      }
    }
  }
}

smalltalklike.rb

module SmallTalkLike
  def if( lmda = nil )
    if self
      if lmda
        lmda.call
      else
        yield
      end
    end
    
    return self
  end
  
  def else( lmda = nil )
    unless self
      if lmda
        lmda.call
      else
        yield
      end
    end
    
    return self
  end
end

class TrueClass; include SmallTalkLike; end
class FalseClass; include SmallTalkLike; end