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mop-10.impure-cload.lisp
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mop-10.impure-cload.lisp
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;;;; miscellaneous side-effectful tests of the MOP
;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
;;;;
;;;; While most of SBCL is derived from the CMU CL system, the test
;;;; files (like this one) were written from scratch after the fork
;;;; from CMU CL.
;;;;
;;;; This software is in the public domain and is provided with
;;;; absolutely no warranty. See the COPYING and CREDITS files for
;;;; more information.
;;; this file contains tests of REINITIALIZE-INSTANCE on generic
;;; functions.
(defpackage "MOP-10"
(:use "CL" "SB-MOP" "TEST-UTIL"))
(in-package "MOP-10")
(defclass my-generic-function (standard-generic-function)
()
(:metaclass funcallable-standard-class))
(defgeneric foo (x)
(:method-combination list)
(:method list ((x float)) (* x x))
(:method list ((x integer)) (1+ x))
(:method list ((x number)) (expt x 2))
(:generic-function-class my-generic-function))
(assert (equal (foo 3) '(4 9)))
(defmethod compute-discriminating-function ((gf my-generic-function))
(let ((orig (call-next-method)))
(lambda (&rest args)
(let ((orig-result (apply orig args)))
(cons gf (reverse orig-result))))))
(assert (equal (foo 3) '(4 9)))
(reinitialize-instance #'foo)
(assert (equal (foo 3) (cons #'foo '(9 4))))