recurse.rb

# frozen_string_literal: true

def recurse(*more)
  public_send(caller[0][/`.*'/][1..-2], *more)
end

def doit_helper(n, acc)
  puts '*' * acc
  recurse(n, acc+1) unless acc >= n
end

def doit(n)
  doit_helper(n, 1)
end

doit(20)