gistfile1.txt

def createCached meth
	m = Module.new do
		@cache = {}
		def self.x args
			p @cache
			unless @cache[args]
				@cache[args] = @m.call(*args)
			end
		end
	end
	m.instance_exec(meth) { @m = meth}
	m.method(:x)
end

def fib n
	return n if n < 2
	fib(n-1)+fib(n-2)
end

x = createHashed method(:fib)
(0..39).map { |y| x.call y }
(0..39).map { |y| x.call y }