tests/mop-3.impure-cload.lisp

   1 ;;;; miscellaneous side-effectful tests of the MOP
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   6 ;;;; While most of SBCL is derived from the CMU CL system, the test
   7 ;;;; files (like this one) were written from scratch after the fork
   8 ;;;; from CMU CL.
   9 ;;;;
  10 ;;;; This software is in the public domain and is provided with
  11 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  12 ;;;; more information.
  13
  14 ;;; This file contains two tests for COMPUTE-APPLICABLE-METHODS on
  15 ;;; subclasses of generic functions.
  16
  17 ;;; tests from Bruno Haible (sbcl-devel 2004-08-02)
  18
  19 (defpackage "MOP-3"
  20   (:use "CL" "SB-MOP"))
  21
  22 (in-package "MOP-3")
  23
  24 (defclass msl-generic-function (standard-generic-function)
  25   ()
  26   (:metaclass funcallable-standard-class))
  27
  28 (defun reverse-method-list (methods)
  29   (let ((result '()))
  30     (dolist (method methods)
  31       (if (and (consp result)
  32                (equal (method-qualifiers method)
  33                       (method-qualifiers (caar result))))
  34           (push method (car result))
  35           (push (list method) result)))
  36     (reduce #'append result)))
  37
  38 (defmethod compute-applicable-methods ((gf msl-generic-function) arguments)
  39   (reverse-method-list (call-next-method)))
  40 (defmethod compute-applicable-methods-using-classes
  41     ((gf msl-generic-function) classes)
  42   (reverse-method-list (call-next-method)))
  43
  44 (defgeneric testgf07 (x)
  45   (:generic-function-class msl-generic-function)
  46   (:method ((x integer))
  47     (cons 'integer (if (next-method-p) (call-next-method))))
  48   (:method ((x real))
  49     (cons 'real (if (next-method-p) (call-next-method))))
  50   (:method ((x number))
  51     (cons 'number (if (next-method-p) (call-next-method))))
  52   (:method :around ((x integer))
  53     (coerce (call-next-method) 'vector)))
  54
  55 (assert (equalp (list (testgf07 5.0) (testgf07 17))
  56                 '((number real) #(number real integer))))
  57
  58 (defclass nonumber-generic-function (standard-generic-function)
  59   ()
  60   (:metaclass funcallable-standard-class))
  61
  62 (defun nonumber-method-list (methods)
  63   (remove-if #'(lambda (method)
  64                  (member (find-class 'number)
  65                          (sb-pcl:method-specializers method)))
  66              methods))
  67
  68 (defmethod compute-applicable-methods
  69     ((gf nonumber-generic-function) arguments)
  70   (nonumber-method-list (call-next-method)))
  71 (defmethod compute-applicable-methods-using-classes
  72     ((gf nonumber-generic-function) classes)
  73   (nonumber-method-list (call-next-method)))
  74
  75 (defgeneric testgf08 (x)
  76   (:generic-function-class nonumber-generic-function)
  77   (:method ((x integer))
  78     (cons 'integer (if (next-method-p) (call-next-method))))
  79   (:method ((x real))
  80     (cons 'real (if (next-method-p) (call-next-method))))
  81   (:method ((x number))
  82     (cons 'number (if (next-method-p) (call-next-method))))
  83   (:method :around ((x integer))
  84     (coerce (call-next-method) 'vector)))
  85
  86 (assert (equalp (list (testgf08 5.0) (testgf08 17))
  87                 '((real) #(integer real))))