transcendental-lisp/lisp/lang/dlambda.lisp

22 lines
542 B
Common Lisp

(load "functions.lisp")
(let
((add-method-clause
(lambda (method)
(cons (first method)
(list
(cons 'apply
(cons (cons 'lambda (rest method))
(list
(if (equal t (car method))
'arguments
'(rest arguments))))))))))
(define-special dlambda (&rest methods)
(cons 'lambda
(cons '(&rest arguments)
(list
(cons 'case
(cons '(first arguments)
(mapcar add-method-clause methods))))))))