custom-curry-in-ruby.rb

# frozen_string_literal: true

class Proc
  def my_curry
    # when my_curry is called: create a new proc and return
    curried = proc do |*partial_args|
      # when curried proc is called: create a closure with partial arguments and then return a new proc/lambda
      l = lambda do |*remaining_args|
        # when the partial rendered curried lambda is called delegate the call to original lambda with closure + current arguments
        actual_args = partial_args + remaining_args
        call(*actual_args)
      end
    end
  end
end
original_lambda = ->(x, y) { p x, y }
p original_lambda
curried_proc = original_lambda.my_curry
p curried_proc
partial_renderd_lambda = curried_proc[1]
p partial_renderd_lambda
partial_renderd_lambda[2]