;; -*- Mode: Lisp; -*-
;; ---------------------------------------------------------------------------
;;     Title: Use the FASL writer and reader to save and load Lisp objects
;;   Created: 2024-01-13
;;    Author: Gilbert Baumann <gilbert@bauhh.de>
;;   License: MIT style (see below)
;; ---------------------------------------------------------------------------
;;  (c) copyright 2024 by Gilbert Baumann

;;  Permission is hereby granted, free of charge, to any person obtaining
;;  a copy of this software and associated documentation files (the
;;  "Software"), to deal in the Software without restriction, including
;;  without limitation the rights to use, copy, modify, merge, publish,
;;  distribute, sublicense, and/or sell copies of the Software, and to
;;  permit persons to whom the Software is furnished to do so, subject to
;;  the following conditions:
;; 
;;  The above copyright notice and this permission notice shall be
;;  included in all copies or substantial portions of the Software.
;; 
;;  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
;;  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;;  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
;;  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
;;  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
;;  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
;;  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

(in-package :cl-user)

(defpackage :fasl-io
  (:use :cl)
  (:export
   #:fasl-write
   #:fasl-read))

(in-package :fasl-io)

(defun fasl-write (object pathname)
  (with-standard-io-syntax
    (let ((lisp-pathname (make-pathname :type "lisp" :defaults pathname)))
      (with-open-file (output lisp-pathname
                              :direction :output
                              :if-exists :supersede)
        (prin1 `(macrolet ((aux () `(setq * ',*))) (aux)) output))
      (let ((* object))
        (compile-file lisp-pathname
                      :output-file pathname
                      :print nil :verbose nil)))))

(defun fasl-read (pathname)
  (let ((* nil))
    (load pathname :verbose nil :print nil)
    *))