#!/usr/local/bin/sbcl --script

(defmacro -> (form &rest forms)
  (if (null forms)
      form
    (let ((git (intern (symbol-name '#:it))))
      `(let ((,git ,form)) (-> ,@forms)))))

(defun square (n)
  (* n n))

(defun add1 (n)
  (1+ n))



(princ (sb-walker:walk-form (-> 5 (add1 it) (square it))))