1 ;;;; miscellaneous side-effectful tests of CLOS
3 ;;;; This software is part of the SBCL system. See the README file for
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
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.
14 (load "assertoid.lisp")
16 (defpackage "CLOS-IMPURE"
17 (:use "CL" "ASSERTOID"))
18 (in-package "CLOS-IMPURE")
20 ;;; It should be possible to do DEFGENERIC and DEFMETHOD referring to
21 ;;; structure types defined earlier in the file.
22 (defstruct struct-a x y)
23 (defstruct struct-b x y z)
24 (defmethod wiggle ((a struct-a))
27 (defgeneric jiggle (arg))
28 (defmethod jiggle ((a struct-a))
31 (defmethod jiggle ((b struct-b))
35 (assert (= (wiggle (make-struct-a :x 6 :y 5))
36 (jiggle (make-struct-b :x 19 :y 6 :z 2))))
38 ;;; Compiling DEFGENERIC should prevent "undefined function" style
39 ;;; warnings from code within the same file.
40 (defgeneric gf-defined-in-this-file (x y))
41 (defun function-using-gf-defined-in-this-file (x y n)
43 (gf-defined-in-this-file x y)))
45 ;;; Until Martin Atzmueller ported Pierre Mai's CMU CL fixes in
46 ;;; sbcl-0.6.12.25, the implementation of NO-APPLICABLE-METHOD was
47 ;;; broken in such a way that the code here would signal an error.
48 (defgeneric zut-n-a-m (a b c))
49 (defmethod no-applicable-method ((zut-n-a-m (eql #'zut-n-a-m)) &rest args)
50 (format t "~&No applicable method for ZUT-N-A-M ~S, yet.~%" args))
53 ;;; bug reported and fixed by Alexey Dejneka sbcl-devel 2001-09-10:
54 ;;; This DEFGENERIC shouldn't cause an error.
55 (defgeneric ad-gf (a) (:method :around (x) x))
57 ;;; DEFGENERIC and DEFMETHOD shouldn't accept &REST when it's not
58 ;;; followed by a variable:
59 ;;; e.g. (DEFMETHOD FOO ((X T) &REST) NIL) should signal an error.
60 (eval-when (:load-toplevel :compile-toplevel :execute)
61 (defmacro expect-error (&body body)
62 `(multiple-value-bind (res condition)
63 (ignore-errors (progn ,@body))
64 (declare (ignore res))
65 (typep condition 'error))))
68 '(defmethod foo0 ((x t) &rest) nil))))
69 (assert (expect-error (defgeneric foo1 (x &rest))))
70 (assert (expect-error (defgeneric foo2 (x a &rest))))
71 (defgeneric foo3 (x &rest y))
72 (defmethod foo3 ((x t) &rest y) nil)
73 (defmethod foo4 ((x t) &rest z &key y) nil)
74 (defgeneric foo4 (x &rest z &key y))
75 (assert (expect-error (defgeneric foo5 (x &rest))))
76 (assert (expect-error (macroexpand-1 '(defmethod foo6 (x &rest)))))
78 ;;; more lambda-list checking
80 ;;; DEFGENERIC lambda lists are subject to various limitations, as per
81 ;;; section 3.4.2 of the ANSI spec. Since Alexey Dejneka's patch for
82 ;;; bug 191-b ca. sbcl-0.7.22, these limitations should be enforced.
83 (labels ((coerce-to-boolean (x)
85 (%like-or-dislike (expr expected-failure-p)
86 (declare (type boolean expected-failure-p))
87 (format t "~&trying ~S~%" expr)
88 (multiple-value-bind (fun warnings-p failure-p)
92 (declare (ignore fun))
93 ;; In principle the constraint on WARNINGS-P below seems
94 ;; reasonable, but in practice we get warnings about
95 ;; undefined functions from the DEFGENERICs, apparently
96 ;; because the DECLAIMs which ordinarily prevent such
97 ;; warnings don't take effect because EVAL-WHEN
98 ;; (:COMPILE-TOPLEVEL) loses its magic when compiled
99 ;; within a LAMBDA. So maybe we can't test WARNINGS-P
101 ;;(unless expected-failure-p
102 ;; (assert (not warnings-p)))
103 (assert (eq (coerce-to-boolean failure-p) expected-failure-p))))
105 (%like-or-dislike expr nil))
107 (%like-or-dislike expr t)))
109 (dislike '(defgeneric gf-for-ll-test-0 ("a" #p"b")))
110 (like '(defgeneric gf-for-ll-test-1 ()))
111 (like '(defgeneric gf-for-ll-test-2 (x)))
112 ;; forbidden default or supplied-p for &OPTIONAL or &KEY arguments
113 (dislike '(defgeneric gf-for-ll-test-3 (x &optional (y 0))))
114 (like '(defgeneric gf-for-ll-test-4 (x &optional y)))
115 (dislike '(defgeneric gf-for-ll-test-5 (x y &key (z :z z-p))))
116 (like '(defgeneric gf-for-ll-test-6 (x y &key z)))
117 (dislike '(defgeneric gf-for-ll-test-7 (x &optional (y 0) &key z)))
118 (like '(defgeneric gf-for-ll-test-8 (x &optional y &key z)))
119 (dislike '(defgeneric gf-for-ll-test-9 (x &optional y &key (z :z))))
120 (like '(defgeneric gf-for-ll-test-10 (x &optional y &key z)))
121 (dislike '(defgeneric gf-for-ll-test-11 (&optional &key (k :k k-p))))
122 (like '(defgeneric gf-for-ll-test-12 (&optional &key k)))
124 (dislike '(defgeneric gf-for-ll-test-13 (x y z &optional a &aux g h)))
125 (like '(defgeneric gf-for-ll-test-14 (x y z &optional a)))
126 (dislike '(defgeneric gf-for-ll-test-bare-aux-1 (x &aux)))
127 (like '(defgeneric gf-for-ll-test-bare-aux-2 (x)))
128 ;; also can't use bogoDEFMETHODish type-qualifier-ish decorations
129 ;; on required arguments
130 (dislike '(defgeneric gf-for-11-test-15 ((arg t))))
131 (like '(defgeneric gf-for-11-test-16 (arg))))
133 ;;; structure-class tests setup
134 (defclass structure-class-foo1 () () (:metaclass cl:structure-class))
135 (defclass structure-class-foo2 (structure-class-foo1)
136 () (:metaclass cl:structure-class))
138 ;;; standard-class tests setup
139 (defclass standard-class-foo1 () () (:metaclass cl:standard-class))
140 (defclass standard-class-foo2 (standard-class-foo1)
141 () (:metaclass cl:standard-class))
143 (assert (typep (class-of (make-instance 'structure-class-foo1))
145 (assert (typep (make-instance 'structure-class-foo1) 'structure-class-foo1))
146 (assert (typep (make-instance 'standard-class-foo1) 'standard-class-foo1))
148 ;;; DEFGENERIC's blow-away-old-methods behavior is specified to have
149 ;;; special hacks to distinguish between defined-with-DEFGENERIC-:METHOD
150 ;;; methods and defined-with-DEFMETHOD methods, so that reLOADing
151 ;;; DEFGENERIC-containing files does the right thing instead of
152 ;;; randomly slicing your generic functions. (APD made this work
153 ;;; in sbcl-0.7.0.2.)
154 (defgeneric born-to-be-redefined (x)
155 (:method ((x integer))
157 (defmethod born-to-be-redefined ((x real))
159 (assert (eq (born-to-be-redefined 1) 'integer))
160 (defgeneric born-to-be-redefined (x))
161 (assert (eq (born-to-be-redefined 1) 'real)) ; failed until sbcl-0.7.0.2
162 (defgeneric born-to-be-redefined (x)
163 (:method ((x integer))
165 (defmethod born-to-be-redefined ((x integer))
167 (assert (eq (born-to-be-redefined 1) 'int))
168 (defgeneric born-to-be-redefined (x))
169 (assert (eq (born-to-be-redefined 1) 'int))
171 ;;; In the removal of ITERATE from SB-PCL, a bug was introduced
172 ;;; preventing forward-references and also change-class (which
173 ;;; forward-references used interally) from working properly. One
174 ;;; symptom was reported by Brian Spilsbury (sbcl-devel 2002-04-08),
175 ;;; and another on IRC by Dan Barlow simultaneously. Better check
176 ;;; that it doesn't happen again.
178 ;;; First, the forward references:
179 (defclass forward-ref-a (forward-ref-b) ())
180 (defclass forward-ref-b () ())
181 ;;; (a couple more complicated examples found by Paul Dietz' test
183 (defclass forward-ref-c1 (forward-ref-c2) ())
184 (defclass forward-ref-c2 (forward-ref-c3) ())
186 (defclass forward-ref-d1 (forward-ref-d2 forward-ref-d3) ())
187 (defclass forward-ref-d2 (forward-ref-d4 forward-ref-d5) ())
189 ;;; Then change-class
190 (defclass class-with-slots ()
191 ((a-slot :initarg :a-slot :accessor a-slot)
192 (b-slot :initarg :b-slot :accessor b-slot)
193 (c-slot :initarg :c-slot :accessor c-slot)))
194 (let ((foo (make-instance 'class-with-slots
198 (let ((bar (change-class foo 'class-with-slots)))
199 (assert (= (a-slot bar) 1))
200 (assert (= (b-slot bar) 2))
201 (assert (= (c-slot bar) 3))))
203 ;;; some more CHANGE-CLASS testing, now that we have an ANSI-compliant
204 ;;; version (thanks to Espen Johnsen)
205 (defclass from-class ()
206 ((foo :initarg :foo :accessor foo)))
207 (defclass to-class ()
208 ((foo :initarg :foo :accessor foo)
209 (bar :initarg :bar :accessor bar)))
210 (let* ((from (make-instance 'from-class :foo 1))
211 (to (change-class from 'to-class :bar 2)))
212 (assert (= (foo to) 1))
213 (assert (= (bar to) 2)))
215 ;;; Until Pierre Mai's patch (sbcl-devel 2002-06-18, merged in
216 ;;; sbcl-0.7.4.39) the :MOST-SPECIFIC-LAST option had no effect.
217 (defgeneric bug180 (x)
218 (:method-combination list :most-specific-last))
219 (defmethod bug180 list ((x number))
221 (defmethod bug180 list ((x fixnum))
223 (assert (equal (bug180 14) '(number fixnum)))
225 ;;; printing a structure class should not loop indefinitely (or cause
226 ;;; a stack overflow):
227 (defclass test-printing-structure-class ()
228 ((slot :initarg :slot))
229 (:metaclass structure-class))
230 (print (make-instance 'test-printing-structure-class :slot 2))
232 ;;; structure-classes should behave nicely when subclassed
233 (defclass super-structure ()
234 ((a :initarg :a :accessor a-accessor)
235 (b :initform 2 :reader b-reader))
236 (:metaclass structure-class))
237 (defclass sub-structure (super-structure)
238 ((c :initarg :c :writer c-writer :accessor c-accessor))
239 (:metaclass structure-class))
240 (let ((foo (make-instance 'sub-structure :a 1 :c 3)))
241 (assert (= (a-accessor foo) 1))
242 (assert (= (b-reader foo) 2))
243 (assert (= (c-accessor foo) 3))
244 (setf (a-accessor foo) 4)
246 (assert (= (a-accessor foo) 4))
247 (assert (= (c-accessor foo) 5)))
249 ;;; At least as of sbcl-0.7.4, PCL has code to support a special
250 ;;; encoding of effective method functions for slot accessors as
251 ;;; FIXNUMs. Given this special casing, it'd be easy for slot accessor
252 ;;; functions to get broken in special ways even though ordinary
253 ;;; generic functions work. As of sbcl-0.7.4 we didn't have any tests
254 ;;; for that possibility. Now we have a few tests:
256 ((fin :reader ffin :writer ffin!)
257 (tail :reader ftail :writer ftail!)))
258 (defvar *fish* (make-instance 'fish))
259 (ffin! 'triangular-fin *fish*)
260 (defclass cod (fish) ())
261 (defvar *cod* (make-instance 'cod))
262 (defparameter *clos-dispatch-side-fx* (make-array 0 :fill-pointer 0))
263 (defmethod ffin! (new-fin (cod cod))
264 (format t "~&about to set ~S fin to ~S~%" cod new-fin)
265 (vector-push-extend '(cod) *clos-dispatch-side-fx*)
268 (format t "~&done setting ~S fin to ~S~%" cod new-fin)))
269 (defmethod ffin! :before (new-fin (cod cod))
270 (vector-push-extend '(:before cod) *clos-dispatch-side-fx*)
271 (format t "~&exploring the CLOS dispatch zoo with COD fins~%"))
272 (ffin! 'almost-triang-fin *cod*)
273 (assert (eq (ffin *cod*) 'almost-triang-fin))
274 (assert (equalp #((:before cod) (cod)) *clos-dispatch-side-fx*))
276 ;;; Until sbcl-0.7.6.21, the long form of DEFINE-METHOD-COMBINATION
277 ;;; ignored its options; Gerd Moellmann found and fixed the problem
278 ;;; for cmucl (cmucl-imp 2002-06-18).
279 (define-method-combination test-mc (x)
280 ;; X above being a method-group-specifier
281 ((primary () :required t))
282 `(call-method ,(first primary)))
285 (:method-combination test-mc 1))
290 ;;; Until sbcl-0.7.7.20, some conditions weren't being signalled, and
291 ;;; some others were of the wrong type:
292 (macrolet ((assert-program-error (form)
293 `(multiple-value-bind (value error)
294 (ignore-errors ,form)
295 (assert (null value))
296 (assert (typep error 'program-error)))))
297 (assert-program-error (defclass foo001 () (a b a)))
298 (assert-program-error (defclass foo002 ()
300 (:default-initargs x 'a x 'b)))
301 (assert-program-error (defclass foo003 ()
302 ((a :allocation :class :allocation :class))))
303 (assert-program-error (defclass foo004 ()
305 ;; and some more, found by Wolfhard Buss and fixed for cmucl by Gerd
306 ;; Moellmann in sbcl-0.7.8.x:
307 (assert-program-error (progn
308 (defmethod odd-key-args-checking (&key (key 42)) key)
309 (odd-key-args-checking 3)))
310 (assert (= (odd-key-args-checking) 42))
311 (assert (eq (odd-key-args-checking :key t) t))
312 ;; yet some more, fixed in sbcl-0.7.9.xx
313 (assert-program-error (defclass foo005 ()
314 (:metaclass sb-pcl::funcallable-standard-class)
316 (assert-program-error (defclass foo006 ()
317 ((a :reader (setf a)))))
318 (assert-program-error (defclass foo007 ()
320 (assert-program-error (defclass foo008 ()
322 (:default-initargs :a 1)
323 (:default-initargs :a 2)))
324 ;; and also BUG 47d, fixed in sbcl-0.8alpha.0.26
325 (assert-program-error (defgeneric if (x)))
326 ;; DEFCLASS should detect an error if slot names aren't suitable as
328 (assert-program-error (defclass foo009 ()
330 (assert-program-error (defclass foo010 ()
331 (("a" :initarg :a))))
332 (assert-program-error (defclass foo011 ()
333 ((#1a() :initarg :a))))
334 (assert-program-error (defclass foo012 ()
336 (assert-program-error (defclass foo013 () ("a")))
337 ;; specialized lambda lists have certain restrictions on ordering,
338 ;; repeating keywords, and the like:
339 (assert-program-error (defmethod foo014 ((foo t) &rest) nil))
340 (assert-program-error (defmethod foo015 ((foo t) &rest x y) nil))
341 (assert-program-error (defmethod foo016 ((foo t) &allow-other-keys) nil))
342 (assert-program-error (defmethod foo017 ((foo t)
343 &optional x &optional y) nil))
344 (assert-program-error (defmethod foo018 ((foo t) &rest x &rest y) nil))
345 (assert-program-error (defmethod foo019 ((foo t) &rest x &optional y) nil))
346 (assert-program-error (defmethod foo020 ((foo t) &key x &optional y) nil))
347 (assert-program-error (defmethod foo021 ((foo t) &key x &rest y) nil)))
349 ;;; DOCUMENTATION's argument-precedence-order wasn't being faithfully
350 ;;; preserved through the bootstrap process until sbcl-0.7.8.39.
351 ;;; (thanks to Gerd Moellmann)
352 (let ((answer (documentation '+ 'function)))
353 (assert (stringp answer))
354 (defmethod documentation ((x (eql '+)) y) "WRONG")
355 (assert (string= (documentation '+ 'function) answer)))
357 ;;; only certain declarations are permitted in DEFGENERIC
358 (macrolet ((assert-program-error (form)
359 `(multiple-value-bind (value error)
360 (ignore-errors ,form)
361 (assert (null value))
362 (assert (typep error 'program-error)))))
363 (assert-program-error (defgeneric bogus-declaration (x)
364 (declare (special y))))
365 (assert-program-error (defgeneric bogus-declaration2 (x)
366 (declare (notinline concatenate)))))
367 ;;; CALL-NEXT-METHOD should call NO-NEXT-METHOD if there is no next
369 (defmethod no-next-method-test ((x integer)) (call-next-method))
370 (assert (null (ignore-errors (no-next-method-test 1))))
371 (defmethod no-next-method ((g (eql #'no-next-method-test)) m &rest args)
373 (assert (eq (no-next-method-test 1) 'success))
374 (assert (null (ignore-errors (no-next-method-test 'foo))))
376 ;;; regression test for bug 176, following a fix that seems
377 ;;; simultaneously to fix 140 while not exposing 176 (by Gerd
378 ;;; Moellmann, merged in sbcl-0.7.9.12).
380 (let ((lastname (intern (format nil "C176-~D" (1- i))))
381 (name (intern (format nil "C176-~D" i))))
382 (eval `(defclass ,name
383 (,@(if (= i 0) nil (list lastname)))
385 (eval `(defmethod initialize-instance :after ((x ,name) &rest any)
386 (declare (ignore any))))))
387 (defclass b176 () (aslot-176))
388 (defclass c176-0 (b176) ())
389 (assert (= 1 (setf (slot-value (make-instance 'c176-9) 'aslot-176) 1)))
391 ;;; DEFINE-METHOD-COMBINATION was over-eager at checking for duplicate
393 (define-method-combination dmc-test-mc (&optional (order :most-specific-first))
395 (primary (dmc-test-mc) :order order :required t))
396 (let ((form (if (rest primary)
397 `(and ,@(mapcar #'(lambda (method)
398 `(call-method ,method))
400 `(call-method ,(first primary)))))
402 `(call-method ,(first around)
404 (make-method ,form)))
407 (defgeneric dmc-test-mc (&key k)
408 (:method-combination dmc-test-mc))
410 (defmethod dmc-test-mc dmc-test-mc (&key k)
414 ;;; While I'm at it, DEFINE-METHOD-COMBINATION is defined to return
415 ;;; the NAME argument, not some random method object. So:
416 (assert (eq (define-method-combination dmc-test-return-foo)
417 'dmc-test-return-foo))
418 (assert (eq (define-method-combination dmc-test-return-bar :operator and)
419 'dmc-test-return-bar))
420 (assert (eq (define-method-combination dmc-test-return
421 (&optional (order :most-specific-first))
423 (primary (dmc-test-return) :order order :required t))
424 (let ((form (if (rest primary)
425 `(and ,@(mapcar #'(lambda (method)
426 `(call-method ,method))
428 `(call-method ,(first primary)))))
430 `(call-method ,(first around)
432 (make-method ,form)))
436 ;;; DEFMETHOD should signal a PROGRAM-ERROR if an incompatible lambda
438 (defmethod incompatible-ll-test-1 (x) x)
439 (multiple-value-bind (result error)
440 (ignore-errors (defmethod incompatible-ll-test-1 (x y) y))
441 (assert (null result))
442 (assert (typep error 'program-error)))
443 (multiple-value-bind (result error)
444 (ignore-errors (defmethod incompatible-ll-test-1 (x &rest y) y))
445 (assert (null result))
446 (assert (typep error 'program-error)))
447 ;;; Sneakily using a bit of MOPness to check some consistency
449 (sb-pcl:generic-function-methods #'incompatible-ll-test-1)) 1))
451 (defmethod incompatible-ll-test-2 (x &key bar) bar)
452 (multiple-value-bind (result error)
453 (ignore-errors (defmethod incompatible-ll-test-2 (x) x))
454 (assert (null result))
455 (assert (typep error 'program-error)))
456 (defmethod incompatible-ll-test-2 (x &rest y) y)
458 (sb-pcl:generic-function-methods #'incompatible-ll-test-2)) 1))
459 (defmethod incompatible-ll-test-2 ((x integer) &key bar) bar)
461 (sb-pcl:generic-function-methods #'incompatible-ll-test-2)) 2))
462 (assert (equal (incompatible-ll-test-2 t 1 2) '(1 2)))
463 (assert (eq (incompatible-ll-test-2 1 :bar 'yes) 'yes))
465 ;;; Attempting to instantiate classes with forward references in their
466 ;;; CPL should signal errors (FIXME: of what type?)
467 (defclass never-finished-class (this-one-unfinished-too) ())
468 (multiple-value-bind (result error)
469 (ignore-errors (make-instance 'never-finished-class))
470 (assert (null result))
471 (assert (typep error 'error)))
472 (multiple-value-bind (result error)
473 (ignore-errors (make-instance 'this-one-unfinished-too))
474 (assert (null result))
475 (assert (typep error 'error)))
477 ;;; Classes with :ALLOCATION :CLASS slots should be subclassable (and
478 ;;; weren't for a while in sbcl-0.7.9.xx)
479 (defclass superclass-with-slot ()
480 ((a :allocation :class)))
481 (defclass subclass-for-class-allocation (superclass-with-slot) ())
482 (make-instance 'subclass-for-class-allocation)
484 ;;; bug #136: CALL-NEXT-METHOD was being a little too lexical,
485 ;;; resulting in failure in the following:
486 (defmethod call-next-method-lexical-args ((x integer))
488 (defmethod call-next-method-lexical-args :around ((x integer))
491 (assert (= (call-next-method-lexical-args 3) 3))
493 ;;; DEFINE-METHOD-COMBINATION with arguments was hopelessly broken
495 (defvar *d-m-c-args-test* nil)
496 (define-method-combination progn-with-lock ()
500 (progn (lock (object-lock ,object))
501 ,@(mapcar #'(lambda (method)
502 `(call-method ,method))
504 (unlock (object-lock ,object))))
505 (defun object-lock (obj)
506 (push "object-lock" *d-m-c-args-test*)
509 (push "unlock" *d-m-c-args-test*)
512 (push "lock" *d-m-c-args-test*)
514 (defgeneric d-m-c-args-test (x)
515 (:method-combination progn-with-lock))
516 (defmethod d-m-c-args-test ((x symbol))
517 (push "primary" *d-m-c-args-test*))
518 (defmethod d-m-c-args-test ((x number))
520 (assert (equal (d-m-c-args-test t) '("primary" "lock" "object-lock")))
521 (assert (equal *d-m-c-args-test*
522 '("unlock" "object-lock" "primary" "lock" "object-lock")))
523 (setf *d-m-c-args-test* nil)
524 (ignore-errors (d-m-c-args-test 1))
525 (assert (equal *d-m-c-args-test*
526 '("unlock" "object-lock" "lock" "object-lock")))
528 ;;; The walker (on which DEFMETHOD depended) didn't know how to handle
529 ;;; SYMBOL-MACROLET properly. In fact, as of sbcl-0.7.10.20 it still
530 ;;; doesn't, but it does well enough to compile the following without
531 ;;; error (the problems remain in asking for a complete macroexpansion
532 ;;; of an arbitrary form).
533 (symbol-macrolet ((x 1))
534 (defmethod bug222 (z)
535 (macrolet ((frob (form) `(progn ,form ,x)))
537 (assert (= (bug222 t) 1))
539 ;;; also, a test case to guard against bogus environment hacking:
540 (eval-when (:compile-toplevel :load-toplevel :execute)
542 ;;; this should at the least compile:
544 (defmethod bug222-b (z stream)
545 (macrolet ((frob (form) `(progn ,form ,bug222-b)))
546 (frob (format stream "~D~%" bug222-b)))))
547 ;;; and it would be nice (though not specified by ANSI) if the answer
549 (let ((x (make-string-output-stream)))
550 ;; not specified by ANSI
551 (assert (= (bug222-b t x) 3))
553 (assert (char= (char (get-output-stream-string x) 0) #\1)))
555 ;;; REINITIALIZE-INSTANCE, in the ctor optimization, wasn't checking
556 ;;; for invalid initargs where it should:
557 (defclass class234 () ())
558 (defclass subclass234 (class234) ())
561 (reinitialize-instance (make-instance 'class234) :dummy 0))
563 (reinitialize-instance (make-instance 'subclass234) :dummy 0))
564 (assert (raises-error? (bug-234) program-error))
565 (defmethod shared-initialize :after ((i class234) slots &key dummy)
567 (assert (typep (subbug-234) 'subclass234))
569 ;; once for MAKE-INSTANCE, once for REINITIALIZE-INSTANCE
572 ;;; also, some combinations of MAKE-INSTANCE and subclassing missed
573 ;;; new methods (Gerd Moellmann sbcl-devel 2002-12-29):
574 (defclass class234-b1 () ())
575 (defclass class234-b2 (class234-b1) ())
576 (defvar *bug234-b* 0)
578 (make-instance 'class234-b2))
581 (assert (= *bug234-b* 0))
582 (defmethod initialize-instance :before ((x class234-b1) &rest args)
583 (declare (ignore args))
586 (assert (= *bug234-b* 1))
588 ;;; we should be able to make classes with uninterned names:
589 (defclass #:class-with-uninterned-name () ())
591 ;;; SLOT-MISSING should be called when there are missing slots.
592 (defclass class-with-all-slots-missing () ())
593 (defmethod slot-missing (class (o class-with-all-slots-missing)
597 (assert (eq (slot-value (make-instance 'class-with-all-slots-missing) 'foo)
599 (assert (eq (funcall (lambda (x) (slot-value x 'bar))
600 (make-instance 'class-with-all-slots-missing))
602 (assert (eq (funcall (lambda (x) (setf (slot-value x 'baz) 'baz))
603 (make-instance 'class-with-all-slots-missing))
606 ;;; we should be able to specialize on anything that names a class.
607 (defclass name-for-class () ())
608 (defmethod something-that-specializes ((x name-for-class)) 1)
609 (setf (find-class 'other-name-for-class) (find-class 'name-for-class))
610 (defmethod something-that-specializes ((x other-name-for-class)) 2)
611 (assert (= (something-that-specializes (make-instance 'name-for-class)) 2))
612 (assert (= (something-that-specializes (make-instance 'other-name-for-class))
615 ;;; more forward referenced classes stuff
616 (defclass frc-1 (frc-2) ())
617 (assert (subtypep 'frc-1 (find-class 'frc-2)))
618 (assert (subtypep (find-class 'frc-1) 'frc-2))
619 (assert (not (subtypep (find-class 'frc-2) 'frc-1)))
620 (defclass frc-2 (frc-3) ((a :initarg :a)))
621 (assert (subtypep 'frc-1 (find-class 'frc-3)))
622 (defclass frc-3 () ())
623 (assert (typep (make-instance 'frc-1 :a 2) (find-class 'frc-1)))
624 (assert (typep (make-instance 'frc-2 :a 3) (find-class 'frc-2)))
626 ;;; check that we can define classes with two slots of different names
627 ;;; (even if it STYLE-WARNs).
628 (defclass odd-name-class ()
629 ((name :initarg :name)
630 (cl-user::name :initarg :name2)))
631 (let ((x (make-instance 'odd-name-class :name 1 :name2 2)))
632 (assert (= (slot-value x 'name) 1))
633 (assert (= (slot-value x 'cl-user::name) 2)))
635 ;;; ALLOCATE-INSTANCE should work on structures, even if defined by
636 ;;; DEFSTRUCT (and not DEFCLASS :METACLASS STRUCTURE-CLASS).
637 (defstruct allocatable-structure a)
638 (assert (typep (allocate-instance (find-class 'allocatable-structure))
639 'allocatable-structure))
642 (sb-ext:quit :unix-status 104)