program-saver/mydefstruct.lisp

36 lines
988 B
Common Lisp

(defun constructor-name (sym)
(intern (concatenate 'string "MAKE-" (string sym))))
(defun accessor-name (name sym)
(intern (concatenate 'string (string name) "-" (string sym))))
(defun setter-name (name sym)
(intern (concatenate 'string "SET-" (string name) "-" (string sym))))
(defun constructor (name slots)
`(defun ,(constructor-name name) ,slots
(list ,@slots)))
(defun accessors (name slots)
(loop for slot in slots
for i upfrom 0 collect
`(defun ,(accessor-name name slot) (obj)
(nth ,i obj))))
(defun setters (name slots)
(loop for slot in slots
for i upfrom 0 collect
`(defun ,(setter-name name slot) (obj val)
(setf (nth ,i obj) val))))
(defun setfers (name slots)
(loop for slot in slots collect
`(defsetf ,(accessor-name name slot)
,(setter-name name slot))))
(defmacro mydefstruct (name &rest slots)
`(progn
,(constructor name slots)
,@ (accessors name slots)
,@ (setters name slots)
,@ (setfers name slots)))