eXtreme Polymorphism

from the object-oriented dept.

Idea idea! What about polymorphic conditionals? In such a way, we don't need the if, else and related keywords. Let's try in Ruby:

	class FalseClass
	def if_false(&block)
	block.call
	self
	end
	def if_true(&block)
	self
	end
	end
	class TrueClass
	def if_true(&block)
	block.call
	self
	end
	def if_false(&block)
	self
	end
	end
	# example
	(1>2).if_true{puts "yes"}.if_false{puts "no"}

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Great, isn't it? But wait, someone already invented this! :-)

Ruby is a great language, however it has too many keywords that could be substituted with object-level messages. Simplicity always leads to elegant solutions, and Smalltalkers know what I am talking about.