Enabling tail recursion in ruby

factorial.rb

require_relative 'tail_call_optimization' # All files loaded AFTER this file with have tail-recursion enabled.
require_relative 'tail_factorial'

tail_factorial.rb

def factorial(n, acc = 1)
  return acc if n <= 1
  factorial(n - 1, n * acc)
end

puts factorial(10000)

tail_recursion.rb

# Enable recursion GLOBALLY --> See my GitHub to do it locally (the right way).
RubyVM::InstructionSequence.compile_option = {
  :tailcall_optimization => true,
  :trace_instruction => false
}