File: mop-10.impure-cload.lisp

package info (click to toggle)
sbcl 1%3A0.9.16.0-1
  • links: PTS
  • area: main
  • in suites: etch, etch-m68k
  • size: 19,960 kB
  • ctags: 16,537
  • sloc: lisp: 231,164; ansic: 19,558; asm: 2,539; sh: 1,925; makefile: 308
file content (41 lines) | stat: -rw-r--r-- 1,307 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
;;;; 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))))