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)))
195 (let ((foo (make-instance 'class-with-slots
199 (let ((bar (change-class foo 'class-with-slots)))
200 (assert (= (a-slot bar) 1))
201 (assert (= (b-slot bar) 2))
202 (assert (= (c-slot bar) 3))))
204 ;;; some more CHANGE-CLASS testing, now that we have an ANSI-compliant
205 ;;; version (thanks to Espen Johnsen)
206 (defclass from-class ()
207 ((foo :initarg :foo :accessor foo)))
208 (defclass to-class ()
209 ((foo :initarg :foo :accessor foo)
210 (bar :initarg :bar :accessor bar)))
211 (let* ((from (make-instance 'from-class :foo 1))
212 (to (change-class from 'to-class :bar 2)))
213 (assert (= (foo to) 1))
214 (assert (= (bar to) 2)))
216 ;;; Until Pierre Mai's patch (sbcl-devel 2002-06-18, merged in
217 ;;; sbcl-0.7.4.39) the :MOST-SPECIFIC-LAST option had no effect.
218 (defgeneric bug180 (x)
219 (:method-combination list :most-specific-last))
220 (defmethod bug180 list ((x number))
222 (defmethod bug180 list ((x fixnum))
224 (assert (equal (bug180 14) '(number fixnum)))
226 ;;; printing a structure class should not loop indefinitely (or cause
227 ;;; a stack overflow):
228 (defclass test-printing-structure-class ()
229 ((slot :initarg :slot))
230 (:metaclass structure-class))
231 (print (make-instance 'test-printing-structure-class :slot 2))
233 ;;; structure-classes should behave nicely when subclassed
234 (defclass super-structure ()
235 ((a :initarg :a :accessor a-accessor)
236 (b :initform 2 :reader b-reader))
237 (:metaclass structure-class))
238 (defclass sub-structure (super-structure)
239 ((c :initarg :c :writer c-writer :accessor c-accessor))
240 (:metaclass structure-class))
241 (let ((foo (make-instance 'sub-structure :a 1 :c 3)))
242 (assert (= (a-accessor foo) 1))
243 (assert (= (b-reader foo) 2))
244 (assert (= (c-accessor foo) 3))
245 (setf (a-accessor foo) 4)
247 (assert (= (a-accessor foo) 4))
248 (assert (= (c-accessor foo) 5)))
250 ;;; At least as of sbcl-0.7.4, PCL has code to support a special
251 ;;; encoding of effective method functions for slot accessors as
252 ;;; FIXNUMs. Given this special casing, it'd be easy for slot accessor
253 ;;; functions to get broken in special ways even though ordinary
254 ;;; generic functions work. As of sbcl-0.7.4 we didn't have any tests
255 ;;; for that possibility. Now we have a few tests:
257 ((fin :reader ffin :writer ffin!)
258 (tail :reader ftail :writer ftail!)))
259 (defvar *fish* (make-instance 'fish))
260 (ffin! 'triangular-fin *fish*)
261 (defclass cod (fish) ())
262 (defvar *cod* (make-instance 'cod))
263 (defparameter *clos-dispatch-side-fx* (make-array 0 :fill-pointer 0))
264 (defmethod ffin! (new-fin (cod cod))
265 (format t "~&about to set ~S fin to ~S~%" cod new-fin)
266 (vector-push-extend '(cod) *clos-dispatch-side-fx*)
269 (format t "~&done setting ~S fin to ~S~%" cod new-fin)))
270 (defmethod ffin! :before (new-fin (cod cod))
271 (vector-push-extend '(:before cod) *clos-dispatch-side-fx*)
272 (format t "~&exploring the CLOS dispatch zoo with COD fins~%"))
273 (ffin! 'almost-triang-fin *cod*)
274 (assert (eq (ffin *cod*) 'almost-triang-fin))
275 (assert (equalp #((:before cod) (cod)) *clos-dispatch-side-fx*))
277 ;;; Until sbcl-0.7.6.21, the long form of DEFINE-METHOD-COMBINATION
278 ;;; ignored its options; Gerd Moellmann found and fixed the problem
279 ;;; for cmucl (cmucl-imp 2002-06-18).
280 (define-method-combination test-mc (x)
281 ;; X above being a method-group-specifier
282 ((primary () :required t))
283 `(call-method ,(first primary)))
286 (:method-combination test-mc 1))
291 ;;; Until sbcl-0.7.7.20, some conditions weren't being signalled, and
292 ;;; some others were of the wrong type:
293 (macrolet ((assert-program-error (form)
294 `(multiple-value-bind (value error)
295 (ignore-errors ,form)
296 (unless (and (null value) (typep error 'program-error))
297 (error "~S failed: ~S, ~S" ',form value error)))))
298 (assert-program-error (defclass foo001 () (a b a)))
299 (assert-program-error (defclass foo002 ()
301 (:default-initargs x 'a x 'b)))
302 (assert-program-error (defclass foo003 ()
303 ((a :allocation :class :allocation :class))))
304 (assert-program-error (defclass foo004 ()
306 ;; and some more, found by Wolfhard Buss and fixed for cmucl by Gerd
307 ;; Moellmann in sbcl-0.7.8.x:
308 (assert-program-error (progn
309 (defmethod odd-key-args-checking (&key (key 42)) key)
310 (odd-key-args-checking 3)))
311 (assert (= (odd-key-args-checking) 42))
312 (assert (eq (odd-key-args-checking :key t) t))
313 ;; yet some more, fixed in sbcl-0.7.9.xx
314 (assert-program-error (defclass foo005 ()
315 (:metaclass sb-pcl::funcallable-standard-class)
317 (assert-program-error (defclass foo006 ()
318 ((a :reader (setf a)))))
319 (assert-program-error (defclass foo007 ()
321 (assert-program-error (defclass foo008 ()
323 (:default-initargs :a 1)
324 (:default-initargs :a 2)))
325 ;; and also BUG 47d, fixed in sbcl-0.8alpha.0.26
326 (assert-program-error (defgeneric if (x)))
327 ;; DEFCLASS should detect an error if slot names aren't suitable as
329 (assert-program-error (defclass foo009 ()
331 (assert-program-error (defclass foo010 ()
332 (("a" :initarg :a))))
333 (assert-program-error (defclass foo011 ()
334 ((#1a() :initarg :a))))
335 (assert-program-error (defclass foo012 ()
337 (assert-program-error (defclass foo013 () ("a")))
338 ;; specialized lambda lists have certain restrictions on ordering,
339 ;; repeating keywords, and the like:
340 (assert-program-error (defmethod foo014 ((foo t) &rest) nil))
341 (assert-program-error (defmethod foo015 ((foo t) &rest x y) nil))
342 (assert-program-error (defmethod foo016 ((foo t) &allow-other-keys) nil))
343 (assert-program-error (defmethod foo017 ((foo t)
344 &optional x &optional y) nil))
345 (assert-program-error (defmethod foo018 ((foo t) &rest x &rest y) nil))
346 (assert-program-error (defmethod foo019 ((foo t) &rest x &optional y) nil))
347 (assert-program-error (defmethod foo020 ((foo t) &key x &optional y) nil))
348 (assert-program-error (defmethod foo021 ((foo t) &key x &rest y) nil)))
350 ;;; DOCUMENTATION's argument-precedence-order wasn't being faithfully
351 ;;; preserved through the bootstrap process until sbcl-0.7.8.39.
352 ;;; (thanks to Gerd Moellmann)
353 (let ((answer (documentation '+ 'function)))
354 (assert (stringp answer))
355 (defmethod documentation ((x (eql '+)) y) "WRONG")
356 (assert (string= (documentation '+ 'function) answer)))
358 ;;; only certain declarations are permitted in DEFGENERIC
359 (macrolet ((assert-program-error (form)
360 `(multiple-value-bind (value error)
361 (ignore-errors ,form)
362 (assert (null value))
363 (assert (typep error 'program-error)))))
364 (assert-program-error (defgeneric bogus-declaration (x)
365 (declare (special y))))
366 (assert-program-error (defgeneric bogus-declaration2 (x)
367 (declare (notinline concatenate)))))
368 ;;; CALL-NEXT-METHOD should call NO-NEXT-METHOD if there is no next
370 (defmethod no-next-method-test ((x integer)) (call-next-method))
371 (assert (null (ignore-errors (no-next-method-test 1))))
372 (defmethod no-next-method ((g (eql #'no-next-method-test)) m &rest args)
374 (assert (eq (no-next-method-test 1) 'success))
375 (assert (null (ignore-errors (no-next-method-test 'foo))))
377 ;;; regression test for bug 176, following a fix that seems
378 ;;; simultaneously to fix 140 while not exposing 176 (by Gerd
379 ;;; Moellmann, merged in sbcl-0.7.9.12).
381 (let ((lastname (intern (format nil "C176-~D" (1- i))))
382 (name (intern (format nil "C176-~D" i))))
383 (eval `(defclass ,name
384 (,@(if (= i 0) nil (list lastname)))
386 (eval `(defmethod initialize-instance :after ((x ,name) &rest any)
387 (declare (ignore any))))))
388 (defclass b176 () (aslot-176))
389 (defclass c176-0 (b176) ())
390 (assert (= 1 (setf (slot-value (make-instance 'c176-9) 'aslot-176) 1)))
392 ;;; DEFINE-METHOD-COMBINATION was over-eager at checking for duplicate
394 (define-method-combination dmc-test-mc (&optional (order :most-specific-first))
396 (primary (dmc-test-mc) :order order :required t))
397 (let ((form (if (rest primary)
398 `(and ,@(mapcar #'(lambda (method)
399 `(call-method ,method))
401 `(call-method ,(first primary)))))
403 `(call-method ,(first around)
405 (make-method ,form)))
408 (defgeneric dmc-test-mc (&key k)
409 (:method-combination dmc-test-mc))
411 (defmethod dmc-test-mc dmc-test-mc (&key k)
415 ;;; While I'm at it, DEFINE-METHOD-COMBINATION is defined to return
416 ;;; the NAME argument, not some random method object. So:
417 (assert (eq (define-method-combination dmc-test-return-foo)
418 'dmc-test-return-foo))
419 (assert (eq (define-method-combination dmc-test-return-bar :operator and)
420 'dmc-test-return-bar))
421 (assert (eq (define-method-combination dmc-test-return
422 (&optional (order :most-specific-first))
424 (primary (dmc-test-return) :order order :required t))
425 (let ((form (if (rest primary)
426 `(and ,@(mapcar #'(lambda (method)
427 `(call-method ,method))
429 `(call-method ,(first primary)))))
431 `(call-method ,(first around)
433 (make-method ,form)))
437 ;;; DEFINE-METHOD-COMBINATION should, according to the description in 7.7,
438 ;;; allow you to do everything in the body forms yourself if you specify
439 ;;; exactly one method group whose qualifier-pattern is *
441 ;;; The specific language is:
442 ;;; "The use of method group specifiers provides a convenient syntax to select
443 ;;; methods, to divide them among the possible roles, and to perform the
444 ;;; necessary error checking. It is possible to perform further filtering of
445 ;;; methods in the body forms by using normal list-processing operations and
446 ;;; the functions method-qualifiers and invalid-method-error. It is permissible
447 ;;; to use setq on the variables named in the method group specifiers and to
448 ;;; bind additional variables. It is also possible to bypass the method group
449 ;;; specifier mechanism and do everything in the body forms. This is
450 ;;; accomplished by writing a single method group with * as its only
451 ;;; qualifier-pattern; the variable is then bound to a list of all of the
452 ;;; applicable methods, in most-specific-first order."
453 (define-method-combination wam-test-method-combination-a ()
455 (do ((methods all-methods (rest methods))
459 (let ((primary (nreverse primary))
460 (around (nreverse around)))
462 (let ((form (if (rest primary)
463 `(call-method ,(first primary) ,(rest primary))
464 `(call-method ,(first primary)))))
466 `(call-method ,(first around) (,@(rest around)
467 (make-method ,form)))
469 `(make-method (error "No primary methods")))))
470 (let* ((method (first methods))
471 (qualifier (first (method-qualifiers method))))
473 ((equal :around qualifier)
474 (push method around))
476 (push method primary))))))
478 (defgeneric wam-test-mc-a (val)
479 (:method-combination wam-test-method-combination-a))
480 (assert (raises-error? (wam-test-mc-a 13)))
481 (defmethod wam-test-mc-a ((val number))
482 (+ val (if (next-method-p) (call-next-method) 0)))
483 (assert (= (wam-test-mc-a 13) 13))
484 (defmethod wam-test-mc-a :around ((val number))
485 (+ val (if (next-method-p) (call-next-method) 0)))
486 (assert (= (wam-test-mc-a 13) 26))
488 ;;; DEFINE-METHOD-COMBINATION
489 ;;; When two methods are in the same method group and have the same
490 ;;; specializers, their sort order within the group may be ambiguous. Therefore,
491 ;;; we should throw an error when we have two methods in the same group with
492 ;;; the same specializers /as long as/ we have more than one method group
493 ;;; or our single method group qualifier-pattern is not *. This resolves the
494 ;;; apparent conflict with the above 'It is also possible to bypass' language.
496 ;;; The language specifying this behavior is:
497 ;;; "Note that two methods with identical specializers, but with different
498 ;;; qualifiers, are not ordered by the algorithm described in Step 2 of the
499 ;;; method selection and combination process described in Section 7.6.6
500 ;;; (Method Selection and Combination). Normally the two methods play different
501 ;;; roles in the effective method because they have different qualifiers, and
502 ;;; no matter how they are ordered in the result of Step 2, the effective
503 ;;; method is the same. If the two methods play the same role and their order
504 ;;; matters, an error is signaled. This happens as part of the qualifier
505 ;;; pattern matching in define-method-combination."
507 ;;; Note that the spec pretty much equates 'method group' and 'role'.
508 ;; First we ensure that it fails correctly when there is more than one
510 (define-method-combination wam-test-method-combination-b ()
512 (primary * :required t))
513 (let ((form (if (rest primary)
514 `(call-method ,(first primary) ,(rest primary))
515 `(call-method ,(first primary)))))
517 `(call-method ,(first around) (,@(rest around)
518 (make-method ,form)))
521 (defgeneric wam-test-mc-b (val)
522 (:method-combination wam-test-method-combination-b))
523 (defmethod wam-test-mc-b ((val number))
524 (+ val (if (next-method-p) (call-next-method) 0)))
525 (assert (= (wam-test-mc-b 13) 13))
526 (defmethod wam-test-mc-b :around ((val number))
527 (+ val (if (next-method-p) (call-next-method) 0)))
528 (assert (= (wam-test-mc-b 13) 26))
529 (defmethod wam-test-mc-b :somethingelse ((val number))
530 (+ val (if (next-method-p) (call-next-method) 0)))
531 (assert (raises-error? (wam-test-mc-b 13)))
533 ;;; now, ensure that it fails with a single group with a qualifier-pattern
535 (define-method-combination wam-test-method-combination-c ()
536 ((methods listp :required t))
538 `(call-method ,(first methods) ,(rest methods))
539 `(call-method ,(first methods))))
541 (defgeneric wam-test-mc-c (val)
542 (:method-combination wam-test-method-combination-c))
543 (assert (raises-error? (wam-test-mc-c 13)))
544 (defmethod wam-test-mc-c :foo ((val number))
545 (+ val (if (next-method-p) (call-next-method) 0)))
546 (assert (= (wam-test-mc-c 13) 13))
547 (defmethod wam-test-mc-c :bar ((val number))
548 (+ val (if (next-method-p) (call-next-method) 0)))
549 (assert (raises-error? (wam-test-mc-c 13)))
551 ;;; DEFMETHOD should signal an ERROR if an incompatible lambda list is
553 (defmethod incompatible-ll-test-1 (x) x)
554 (assert (raises-error? (defmethod incompatible-ll-test-1 (x y) y)))
555 (assert (raises-error? (defmethod incompatible-ll-test-1 (x &rest y) y)))
556 ;;; Sneakily using a bit of MOPness to check some consistency
558 (sb-pcl:generic-function-methods #'incompatible-ll-test-1)) 1))
560 (defmethod incompatible-ll-test-2 (x &key bar) bar)
561 (assert (raises-error? (defmethod incompatible-ll-test-2 (x) x)))
562 (defmethod incompatible-ll-test-2 (x &rest y) y)
564 (sb-pcl:generic-function-methods #'incompatible-ll-test-2)) 1))
565 (defmethod incompatible-ll-test-2 ((x integer) &key bar) bar)
567 (sb-pcl:generic-function-methods #'incompatible-ll-test-2)) 2))
569 ;;; Per Christophe, this is an illegal method call because of 7.6.5
570 (assert (raises-error? (incompatible-ll-test-2 t 1 2)))
572 (assert (eq (incompatible-ll-test-2 1 :bar 'yes) 'yes))
574 (defmethod incompatible-ll-test-3 ((x integer)) x)
575 (remove-method #'incompatible-ll-test-3
576 (find-method #'incompatible-ll-test-3
578 (list (find-class 'integer))))
579 (assert (raises-error? (defmethod incompatible-ll-test-3 (x y) (list x y))))
582 ;;; Attempting to instantiate classes with forward references in their
583 ;;; CPL should signal errors (FIXME: of what type?)
584 (defclass never-finished-class (this-one-unfinished-too) ())
585 (multiple-value-bind (result error)
586 (ignore-errors (make-instance 'never-finished-class))
587 (assert (null result))
588 (assert (typep error 'error)))
589 (multiple-value-bind (result error)
590 (ignore-errors (make-instance 'this-one-unfinished-too))
591 (assert (null result))
592 (assert (typep error 'error)))
594 ;;; Classes with :ALLOCATION :CLASS slots should be subclassable (and
595 ;;; weren't for a while in sbcl-0.7.9.xx)
596 (defclass superclass-with-slot ()
597 ((a :allocation :class)))
598 (defclass subclass-for-class-allocation (superclass-with-slot) ())
599 (make-instance 'subclass-for-class-allocation)
601 ;;; bug #136: CALL-NEXT-METHOD was being a little too lexical,
602 ;;; resulting in failure in the following:
603 (defmethod call-next-method-lexical-args ((x integer))
605 (defmethod call-next-method-lexical-args :around ((x integer))
608 (assert (= (call-next-method-lexical-args 3) 3))
610 ;;; DEFINE-METHOD-COMBINATION with arguments was hopelessly broken
612 (defvar *d-m-c-args-test* nil)
613 (define-method-combination progn-with-lock ()
617 (progn (lock (object-lock ,object))
618 ,@(mapcar #'(lambda (method)
619 `(call-method ,method))
621 (unlock (object-lock ,object))))
622 (defun object-lock (obj)
623 (push "object-lock" *d-m-c-args-test*)
626 (push "unlock" *d-m-c-args-test*)
629 (push "lock" *d-m-c-args-test*)
631 (defgeneric d-m-c-args-test (x)
632 (:method-combination progn-with-lock))
633 (defmethod d-m-c-args-test ((x symbol))
634 (push "primary" *d-m-c-args-test*))
635 (defmethod d-m-c-args-test ((x number))
637 (assert (equal (d-m-c-args-test t) '("primary" "lock" "object-lock")))
638 (assert (equal *d-m-c-args-test*
639 '("unlock" "object-lock" "primary" "lock" "object-lock")))
640 (setf *d-m-c-args-test* nil)
641 (ignore-errors (d-m-c-args-test 1))
642 (assert (equal *d-m-c-args-test*
643 '("unlock" "object-lock" "lock" "object-lock")))
645 ;;; The walker (on which DEFMETHOD depended) didn't know how to handle
646 ;;; SYMBOL-MACROLET properly. In fact, as of sbcl-0.7.10.20 it still
647 ;;; doesn't, but it does well enough to compile the following without
648 ;;; error (the problems remain in asking for a complete macroexpansion
649 ;;; of an arbitrary form).
650 (symbol-macrolet ((x 1))
651 (defmethod bug222 (z)
652 (macrolet ((frob (form) `(progn ,form ,x)))
654 (assert (= (bug222 t) 1))
656 ;;; also, a test case to guard against bogus environment hacking:
657 (eval-when (:compile-toplevel :load-toplevel :execute)
659 ;;; this should at the least compile:
661 (defmethod bug222-b (z stream)
662 (macrolet ((frob (form) `(progn ,form ,bug222-b)))
663 (frob (format stream "~D~%" bug222-b)))))
664 ;;; and it would be nice (though not specified by ANSI) if the answer
666 (let ((x (make-string-output-stream)))
667 ;; not specified by ANSI
668 (assert (= (bug222-b t x) 3))
670 (assert (char= (char (get-output-stream-string x) 0) #\1)))
672 ;;; REINITIALIZE-INSTANCE, in the ctor optimization, wasn't checking
673 ;;; for invalid initargs where it should:
674 (defclass class234 () ())
675 (defclass subclass234 (class234) ())
678 (reinitialize-instance (make-instance 'class234) :dummy 0))
680 (reinitialize-instance (make-instance 'subclass234) :dummy 0))
681 (assert (raises-error? (bug-234) program-error))
682 (defmethod shared-initialize :after ((i class234) slots &key dummy)
684 (assert (typep (subbug-234) 'subclass234))
686 ;; once for MAKE-INSTANCE, once for REINITIALIZE-INSTANCE
689 ;;; also, some combinations of MAKE-INSTANCE and subclassing missed
690 ;;; new methods (Gerd Moellmann sbcl-devel 2002-12-29):
691 (defclass class234-b1 () ())
692 (defclass class234-b2 (class234-b1) ())
693 (defvar *bug234-b* 0)
695 (make-instance 'class234-b2))
698 (assert (= *bug234-b* 0))
699 (defmethod initialize-instance :before ((x class234-b1) &rest args)
700 (declare (ignore args))
703 (assert (= *bug234-b* 1))
705 ;;; we should be able to make classes with uninterned names:
706 (defclass #:class-with-uninterned-name () ())
708 ;;; SLOT-MISSING should be called when there are missing slots.
709 (defclass class-with-all-slots-missing () ())
710 (defmethod slot-missing (class (o class-with-all-slots-missing)
714 (assert (eq (slot-value (make-instance 'class-with-all-slots-missing) 'foo)
716 (assert (eq (funcall (lambda (x) (slot-value x 'bar))
717 (make-instance 'class-with-all-slots-missing))
719 (assert (eq (funcall (lambda (x) (setf (slot-value x 'baz) 'baz))
720 (make-instance 'class-with-all-slots-missing))
721 ;; SLOT-MISSING's value is specified to be ignored; we
725 ;;; we should be able to specialize on anything that names a class.
726 (defclass name-for-class () ())
727 (defmethod something-that-specializes ((x name-for-class)) 1)
728 (setf (find-class 'other-name-for-class) (find-class 'name-for-class))
729 (defmethod something-that-specializes ((x other-name-for-class)) 2)
730 (assert (= (something-that-specializes (make-instance 'name-for-class)) 2))
731 (assert (= (something-that-specializes (make-instance 'other-name-for-class))
734 ;;; more forward referenced classes stuff
735 (defclass frc-1 (frc-2) ())
736 (assert (subtypep 'frc-1 (find-class 'frc-2)))
737 (assert (subtypep (find-class 'frc-1) 'frc-2))
738 (assert (not (subtypep (find-class 'frc-2) 'frc-1)))
739 (defclass frc-2 (frc-3) ((a :initarg :a)))
740 (assert (subtypep 'frc-1 (find-class 'frc-3)))
741 (defclass frc-3 () ())
742 (assert (typep (make-instance 'frc-1 :a 2) (find-class 'frc-1)))
743 (assert (typep (make-instance 'frc-2 :a 3) (find-class 'frc-2)))
745 ;;; check that we can define classes with two slots of different names
746 ;;; (even if it STYLE-WARNs).
747 (defclass odd-name-class ()
748 ((name :initarg :name)
749 (cl-user::name :initarg :name2)))
750 (let ((x (make-instance 'odd-name-class :name 1 :name2 2)))
751 (assert (= (slot-value x 'name) 1))
752 (assert (= (slot-value x 'cl-user::name) 2)))
754 ;;; ALLOCATE-INSTANCE should work on structures, even if defined by
755 ;;; DEFSTRUCT (and not DEFCLASS :METACLASS STRUCTURE-CLASS).
756 (defstruct allocatable-structure a)
757 (assert (typep (allocate-instance (find-class 'allocatable-structure))
758 'allocatable-structure))
760 ;;; Bug found by Paul Dietz when devising CPL tests: somewhat
761 ;;; amazingly, calls to CPL would work a couple of times, and then
762 ;;; start returning NIL. A fix was found (relating to the
763 ;;; applicability of constant-dfun optimization) by Gerd Moellmann.
765 (:method-combination list)
766 (:method list ((x broadcast-stream)) 'broadcast-stream)
767 (:method list ((x integer)) 'integer)
768 (:method list ((x number)) 'number)
769 (:method list ((x stream)) 'stream)
770 (:method list ((x structure-object)) 'structure-object))
771 (assert (equal (cpl 0) '(integer number)))
772 (assert (equal (cpl 0) '(integer number)))
773 (assert (equal (cpl 0) '(integer number)))
774 (assert (equal (cpl 0) '(integer number)))
775 (assert (equal (cpl 0) '(integer number)))
776 (assert (equal (cpl (make-broadcast-stream))
777 '(broadcast-stream stream structure-object)))
778 (assert (equal (cpl (make-broadcast-stream))
779 '(broadcast-stream stream structure-object)))
780 (assert (equal (cpl (make-broadcast-stream))
781 '(broadcast-stream stream structure-object)))
783 ;;; Bug in CALL-NEXT-METHOD: assignment to the method's formal
784 ;;; parameters shouldn't affect the arguments to the next method for a
785 ;;; no-argument call to CALL-NEXT-METHOD
786 (defgeneric cnm-assignment (x)
788 (:method ((x integer)) (setq x 3)
789 (list x (call-next-method) (call-next-method x))))
790 (assert (equal (cnm-assignment 1) '(3 1 3)))
792 ;;; Bug reported by Istvan Marko 2003-07-09
793 (let ((class-name (gentemp)))
794 (loop for i from 1 to 9
795 for slot-name = (intern (format nil "X~D" i))
796 for initarg-name = (intern (format nil "X~D" i) :keyword)
797 collect `(,slot-name :initarg ,initarg-name) into slot-descs
798 append `(,initarg-name (list 0)) into default-initargs
799 finally (eval `(defclass ,class-name ()
801 (:default-initargs ,@default-initargs))))
802 (let ((f (compile nil `(lambda () (make-instance ',class-name)))))
803 (assert (typep (funcall f) class-name))))
805 ;;; bug 262: DEFMETHOD failed on a generic function without a lambda
807 (ensure-generic-function 'bug262)
808 (defmethod bug262 (x y)
810 (assert (equal (bug262 1 2) '(1 2)))
812 ;;; salex on #lisp 2003-10-13 reported that type declarations inside
813 ;;; WITH-SLOTS are too hairy to be checked
814 (defun ensure-no-notes (form)
815 (handler-case (compile nil `(lambda () ,form))
816 (sb-ext:compiler-note (c)
817 ;; FIXME: it would be better to check specifically for the "type
818 ;; is too hairy" note
821 (ensure-no-notes '(with-slots (a) *x*
822 (declare (integer a))
824 (ensure-no-notes '(with-slots (a) *x*
825 (declare (integer a))
826 (declare (notinline slot-value))
829 ;;; from CLHS 7.6.5.1
830 (defclass character-class () ((char :initarg :char)))
831 (defclass picture-class () ((glyph :initarg :glyph)))
832 (defclass character-picture-class (character-class picture-class) ())
834 (defmethod width ((c character-class) &key font) font)
835 (defmethod width ((p picture-class) &key pixel-size) pixel-size)
837 (assert (raises-error?
838 (width (make-instance 'character-class :char #\Q)
839 :font 'baskerville :pixel-size 10)
841 (assert (raises-error?
842 (width (make-instance 'picture-class :glyph #\Q)
843 :font 'baskerville :pixel-size 10)
845 (assert (eq (width (make-instance 'character-picture-class :char #\Q)
846 :font 'baskerville :pixel-size 10)
849 ;;; class redefinition shouldn't give any warnings, in the usual case
850 (defclass about-to-be-redefined () ((some-slot :accessor some-slot)))
851 (handler-bind ((warning #'error))
852 (defclass about-to-be-redefined () ((some-slot :accessor some-slot))))
854 ;;; attempts to add accessorish methods to generic functions with more
855 ;;; complex lambda lists should fail
856 (defgeneric accessoroid (object &key &allow-other-keys))
857 (assert (raises-error?
858 (defclass accessoroid-class () ((slot :accessor accessoroid)))
861 ;;; reported by Bruno Haible sbcl-devel 2004-04-15
862 (defclass shared-slot-and-redefinition ()
863 ((size :initarg :size :initform 1 :allocation :class)))
864 (let ((i (make-instance 'shared-slot-and-redefinition)))
865 (defclass shared-slot-and-redefinition ()
866 ((size :initarg :size :initform 2 :allocation :class)))
867 (assert (= (slot-value i 'size) 1)))
869 ;;; reported by Bruno Haible sbcl-devel 2004-04-15
870 (defclass superclass-born-to-be-obsoleted () (a))
871 (defclass subclass-born-to-be-obsoleted (superclass-born-to-be-obsoleted) ())
872 (defparameter *born-to-be-obsoleted*
873 (make-instance 'subclass-born-to-be-obsoleted))
874 (defparameter *born-to-be-obsoleted-obsoleted* nil)
875 (defmethod update-instance-for-redefined-class
876 ((o subclass-born-to-be-obsoleted) a d pl &key)
877 (setf *born-to-be-obsoleted-obsoleted* t))
878 (make-instances-obsolete 'superclass-born-to-be-obsoleted)
879 (slot-boundp *born-to-be-obsoleted* 'a)
880 (assert *born-to-be-obsoleted-obsoleted*)
882 ;;; additional test suggested by Bruno Haible sbcl-devel 2004-04-21
883 (defclass super-super-obsoleted () (a))
884 (defclass super-obsoleted-1 (super-super-obsoleted) ())
885 (defclass super-obsoleted-2 (super-super-obsoleted) ())
886 (defclass obsoleted (super-obsoleted-1 super-obsoleted-2) ())
887 (defparameter *obsoleted* (make-instance 'obsoleted))
888 (defparameter *obsoleted-counter* 0)
889 (defmethod update-instance-for-redefined-class ((o obsoleted) a d pl &key)
890 (incf *obsoleted-counter*))
891 (make-instances-obsolete 'super-super-obsoleted)
892 (slot-boundp *obsoleted* 'a)
893 (assert (= *obsoleted-counter* 1))
895 ;;; shared -> local slot transfers of inherited slots, reported by
898 (defclass super-with-magic-slot ()
899 ((magic :initarg :size :initform 1 :allocation :class)))
900 (defclass sub-of-super-with-magic-slot (super-with-magic-slot) ())
901 (setq i (make-instance 'sub-of-super-with-magic-slot))
902 (defclass super-with-magic-slot ()
903 ((magic :initarg :size :initform 2)))
904 (assert (= 1 (slot-value i 'magic))))
906 ;;; MAKE-INSTANCES-OBSOLETE return values
907 (defclass one-more-to-obsolete () ())
908 (assert (eq 'one-more-to-obsolete
909 (make-instances-obsolete 'one-more-to-obsolete)))
910 (assert (eq (find-class 'one-more-to-obsolete)
911 (make-instances-obsolete (find-class 'one-more-to-obsolete))))
913 ;;; Sensible error instead of a BUG. Reported by Thomas Burdick.
914 (multiple-value-bind (value err)
916 (defclass slot-def-with-duplicate-accessors ()
917 ((slot :writer get-slot :reader get-slot))))
918 (assert (typep err 'error))
919 (assert (not (typep err 'sb-int:bug))))
921 ;;; BUG 321: errors in parsing DEFINE-METHOD-COMBINATION arguments
924 (define-method-combination w-args ()
926 (:arguments arg1 arg2 &aux (extra :extra))
927 `(progn ,@(mapcar (lambda (method) `(call-method ,method)) method-list)))
928 (defgeneric mc-test-w-args (p1 p2 s)
929 (:method-combination w-args)
930 (:method ((p1 number) (p2 t) s)
931 (vector-push-extend (list 'number p1 p2) s))
932 (:method ((p1 string) (p2 t) s)
933 (vector-push-extend (list 'string p1 p2) s))
934 (:method ((p1 t) (p2 t) s) (vector-push-extend (list t p1 p2) s)))
935 (let ((v (make-array 0 :adjustable t :fill-pointer t)))
936 (assert (= (mc-test-w-args 1 2 v) 1))
937 (assert (equal (aref v 0) '(number 1 2)))
938 (assert (equal (aref v 1) '(t 1 2))))
940 ;;; BUG 276: declarations and mutation.
941 (defmethod fee ((x fixnum))
944 (assert (= (fee 1) 1/2))
945 (defmethod fum ((x fixnum))
948 (assert (= (fum 3) 3/2))
949 (defmethod fii ((x fixnum))
950 (declare (special x))
953 (assert (= (fii 1) 1/2))
955 (defmethod faa ((*faa* string-stream))
956 (setq *faa* (make-broadcast-stream *faa*))
957 (write-line "Break, you sucker!" *faa*)
959 (assert (eq 'ok (faa (make-string-output-stream))))
960 (defmethod fex ((x fixnum) (y fixnum))
961 (multiple-value-setq (x y) (values (/ x y) (/ y x)))
963 (assert (equal (fex 5 3) '(5/3 3/5)))
965 ;;; Bug reported by Zach Beane; incorrect return of (function
966 ;;; ',fun-name) in defgeneric
968 (typep (funcall (compile nil
969 '(lambda () (flet ((nonsense () nil))
970 (defgeneric nonsense ())))))
974 (typep (funcall (compile nil
975 '(lambda () (flet ((nonsense-2 () nil))
976 (defgeneric nonsense-2 ()
980 ;;; bug reported by Bruno Haible: (setf find-class) using a
981 ;;; forward-referenced class
982 (defclass fr-sub (fr-super) ())
983 (setf (find-class 'fr-alt) (find-class 'fr-super))
984 (assert (eq (find-class 'fr-alt) (find-class 'fr-super)))
987 ;;; ANSI Figure 4-8: all defined classes. Check that we can define
988 ;;; methods on all of these.
990 (defgeneric method-for-defined-classes (x))
991 (dolist (c '(arithmetic-error
992 generic-function simple-error array hash-table
994 bit-vector integer simple-warning
995 broadcast-stream list standard-class
996 built-in-class logical-pathname standard-generic-function
997 cell-error method standard-method
998 character method-combination standard-object
999 class null storage-condition
1000 complex number stream
1001 concatenated-stream package stream-error
1002 condition package-error string
1003 cons parse-error string-stream
1004 control-error pathname structure-class
1005 division-by-zero print-not-readable structure-object
1006 echo-stream program-error style-warning
1007 end-of-file random-state symbol
1008 error ratio synonym-stream
1009 file-error rational t
1010 file-stream reader-error two-way-stream
1011 float readtable type-error
1012 floating-point-inexact real unbound-slot
1013 floating-point-invalid-operation restart unbound-variable
1014 floating-point-overflow sequence undefined-function
1015 floating-point-underflow serious-condition vector
1016 function simple-condition warning))
1017 (eval `(defmethod method-for-defined-classes ((x ,c)) (princ x))))
1018 (assert (string= (with-output-to-string (*standard-output*)
1019 (method-for-defined-classes #\3))
1024 ;;; When class definition does not complete due to a bad accessor
1025 ;;; name, do not cause an error when a new accessor name is provided
1026 ;;; during class redefinition
1028 (defun existing-name (object)
1031 (assert (raises-error? (defclass redefinition-of-accessor-class ()
1032 ((slot :accessor existing-name)))))
1034 (defclass redefinition-of-accessor-class ()
1035 ((slot :accessor new-name)))
1039 (load "package-ctor-bug.lisp")
1040 (assert (= (package-ctor-bug:test) 3))
1041 (delete-package "PACKAGE-CTOR-BUG")
1042 (load "package-ctor-bug.lisp")
1043 (assert (= (package-ctor-bug:test) 3))
1045 (deftype defined-type () 'integer)
1046 (assert (raises-error?
1047 (defmethod method-on-defined-type ((x defined-type)) x)))
1048 (deftype defined-type-and-class () 'integer)
1049 (setf (find-class 'defined-type-and-class) (find-class 'integer))
1050 (defmethod method-on-defined-type-and-class ((x defined-type-and-class))
1052 (assert (= (method-on-defined-type-and-class 3) 4))
1055 (let ((sb-pcl::*max-emf-precomputation-methods* 0))
1056 (eval '(defgeneric bug-281 (x)
1057 (:method-combination +)
1058 (:method ((x symbol)) 1)
1059 (:method + ((x number)) x)))
1060 (assert (= 1 (bug-281 1)))
1061 (assert (= 4.2 (bug-281 4.2)))
1062 (multiple-value-bind (val err) (ignore-errors (bug-281 'symbol))
1064 (assert (typep err 'error))))
1067 (sb-ext:quit :unix-status 104)