tests/mop.impure.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 ;;;; Note that the MOP is not in a supported state. Package issues
  15 ;;;; (both MOP/SB-PCL and CL/SB-PCL) have yet to be resolved, and
  16 ;;;; there is likely to be missing functionality.  However, this seems
  17 ;;;; a good a way as any of ensuring that we have no regressions.
  18
  19 (defpackage "MOP-TEST"
  20   ;; eventually, we might want "MOP" as well here.
  21   (:use "CL"))
  22
  23 (in-package "MOP-TEST")
  24 \f
  25 ;;; Readers for Class Metaobjects (pp. 212--214 of AMOP)
  26 (defclass red-herring (forward-ref) ())
  27
  28 (assert (null (sb-pcl:class-direct-slots (sb-pcl:find-class 'forward-ref))))
  29 (assert (null (sb-pcl:class-direct-default-initargs
  30                (sb-pcl:find-class 'forward-ref))))
  31 \f
  32 ;;; Readers for Generic Function Metaobjects (pp. 216--218 of AMOP)
  33 (defgeneric fn-with-odd-arg-precedence (a b c)
  34   (:argument-precedence-order b c a))
  35
  36 (assert (equal
  37          (sb-pcl:generic-function-lambda-list #'fn-with-odd-arg-precedence)
  38          '(a b c)))
  39 (assert (equal
  40          (sb-pcl:generic-function-argument-precedence-order #'fn-with-odd-arg-precedence)
  41          '(b c a)))
  42 ;;; Test for DOCUMENTATION's order, which was wrong until sbcl-0.7.8.39
  43 (assert (equal
  44          (sb-pcl:generic-function-argument-precedence-order #'documentation)
  45          (let ((ll (sb-pcl:generic-function-lambda-list #'documentation)))
  46            (list (nth 1 ll) (nth 0 ll)))))
  47
  48 (assert (null
  49          (sb-pcl:generic-function-declarations #'fn-with-odd-arg-precedence)))
  50 (defgeneric gf-with-declarations (x)
  51   (declare (optimize (speed 3)))
  52   (declare (optimize (safety 0))))
  53 (let ((decls (sb-pcl:generic-function-declarations #'gf-with-declarations)))
  54   (assert (= (length decls) 2))
  55   (assert (member '(optimize (speed 3)) decls :test #'equal))
  56   (assert (member '(optimize (safety 0)) decls :test #'equal)))
  57 \f
  58 ;;; Readers for Slot Definition Metaobjects (pp. 221--224 of AMOP)
  59
  60 ;;; Ensure that SLOT-DEFINITION-ALLOCATION returns :INSTANCE/:CLASS as
  61 ;;; appropriate.
  62 (defclass sdm-test-class ()
  63   ((an-instance-slot :accessor an-instance-slot)
  64    (a-class-slot :allocation :class :accessor a-class-slot)))
  65 (dolist (m (list (list #'an-instance-slot :instance)
  66                  (list #'a-class-slot :class)))
  67   (let ((methods (sb-pcl:generic-function-methods (car m))))
  68     (assert (= (length methods) 1))
  69     (assert (eq (sb-pcl:slot-definition-allocation
  70                  (sb-pcl:accessor-method-slot-definition
  71                   (car methods)))
  72                 (cadr m)))))
  73 \f
  74 ;;; Class Finalization Protocol (see section 5.5.2 of AMOP)
  75 (let ((finalized-count 0))
  76   (defmethod sb-pcl:finalize-inheritance :after ((x sb-pcl::standard-class))
  77     (incf finalized-count))
  78   (defun get-count () finalized-count))
  79 (defclass finalization-test-1 () ())
  80 (make-instance 'finalization-test-1)
  81 (assert (= (get-count) 1))
  82 (defclass finalization-test-2 (finalization-test-3) ())
  83 (assert (= (get-count) 1))
  84 (defclass finalization-test-3 () ())
  85 (make-instance 'finalization-test-3)
  86 (assert (or (= (get-count) 2) (= (get-count) 3)))
  87 (make-instance 'finalization-test-2)
  88 (assert (= (get-count) 3))
  89 \f
  90 ;;; Bits of FUNCALLABLE-STANDARD-CLASS are easy to break; make sure
  91 ;;; that it is at least possible to define classes with that as a
  92 ;;; metaclass.
  93 (defclass gf-class (standard-generic-function) ()
  94   (:metaclass sb-pcl::funcallable-standard-class))
  95 (defgeneric g (a b c)
  96   (:generic-function-class gf-class))
  97 \f
  98 ;;;; success
  99 (sb-ext:quit :unix-status 104)