tests/clos.impure.lisp

   1 ;;;; miscellaneous side-effectful tests of CLOS
   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 (defpackage "CLOS-IMPURE"
  15   (:use "CL" "ASSERTOID" "TEST-UTIL"))
  16 (in-package "CLOS-IMPURE")
  17 \f
  18 ;;; It should be possible to do DEFGENERIC and DEFMETHOD referring to
  19 ;;; structure types defined earlier in the file.
  20 (defstruct struct-a x y)
  21 (defstruct struct-b x y z)
  22 (defmethod wiggle ((a struct-a))
  23   (+ (struct-a-x a)
  24      (struct-a-y a)))
  25 (defgeneric jiggle (arg))
  26 (defmethod jiggle ((a struct-a))
  27   (- (struct-a-x a)
  28      (struct-a-y a)))
  29 (defmethod jiggle ((b struct-b))
  30   (- (struct-b-x b)
  31      (struct-b-y b)
  32      (struct-b-z b)))
  33 (assert (= (wiggle (make-struct-a :x 6 :y 5))
  34            (jiggle (make-struct-b :x 19 :y 6 :z 2))))
  35
  36 ;;; Compiling DEFGENERIC should prevent "undefined function" style
  37 ;;; warnings from code within the same file.
  38 (defgeneric gf-defined-in-this-file (x y))
  39 (defun function-using-gf-defined-in-this-file (x y n)
  40   (unless (minusp n)
  41     (gf-defined-in-this-file x y)))
  42
  43 ;;; Until Martin Atzmueller ported Pierre Mai's CMU CL fixes in
  44 ;;; sbcl-0.6.12.25, the implementation of NO-APPLICABLE-METHOD was
  45 ;;; broken in such a way that the code here would signal an error.
  46 (defgeneric zut-n-a-m (a b c))
  47 (defmethod no-applicable-method ((zut-n-a-m (eql #'zut-n-a-m)) &rest args)
  48   (format t "~&No applicable method for ZUT-N-A-M ~S, yet.~%" args))
  49 (zut-n-a-m 1 2 3)
  50
  51 ;;; bug reported and fixed by Alexey Dejneka sbcl-devel 2001-09-10:
  52 ;;; This DEFGENERIC shouldn't cause an error.
  53 (defgeneric ad-gf (a) (:method :around (x) x))
  54
  55 ;;; DEFGENERIC and DEFMETHOD shouldn't accept &REST when it's not
  56 ;;; followed by a variable:
  57 ;;; e.g. (DEFMETHOD FOO ((X T) &REST) NIL) should signal an error.
  58 (eval-when (:load-toplevel :compile-toplevel :execute)
  59   (defmacro expect-error (&body body)
  60     `(multiple-value-bind (res condition)
  61       (ignore-errors (progn ,@body))
  62       (declare (ignore res))
  63       (typep condition 'error))))
  64 (assert (expect-error (defmethod foo0 ((x t) &rest) nil)))
  65 (assert (expect-error (defgeneric foo1 (x &rest))))
  66 (assert (expect-error (defgeneric foo2 (x a &rest))))
  67 (defgeneric foo3 (x &rest y))
  68 (defmethod foo3 ((x t) &rest y) nil)
  69 (defmethod foo4 ((x t) &rest z &key y) nil)
  70 (defgeneric foo4 (x &rest z &key y))
  71 (assert (expect-error (defgeneric foo5 (x &rest))))
  72 (assert (expect-error (defmethod foo6 (x &rest))))
  73
  74 ;;; more lambda-list checking
  75 ;;;
  76 ;;; DEFGENERIC lambda lists are subject to various limitations, as per
  77 ;;; section 3.4.2 of the ANSI spec. Since Alexey Dejneka's patch for
  78 ;;; bug 191-b ca. sbcl-0.7.22, these limitations should be enforced.
  79 (labels ((coerce-to-boolean (x)
  80            (if x t nil))
  81          (%like-or-dislike (expr expected-failure-p)
  82            (declare (type boolean expected-failure-p))
  83            (format t "~&trying ~S~%" expr)
  84            (multiple-value-bind (fun warnings-p failure-p)
  85              (compile nil
  86                       `(lambda ()
  87                          ,expr))
  88              (declare (ignore fun))
  89              ;; In principle the constraint on WARNINGS-P below seems
  90              ;; reasonable, but in practice we get warnings about
  91              ;; undefined functions from the DEFGENERICs, apparently
  92              ;; because the DECLAIMs which ordinarily prevent such
  93              ;; warnings don't take effect because EVAL-WHEN
  94              ;; (:COMPILE-TOPLEVEL) loses its magic when compiled
  95              ;; within a LAMBDA. So maybe we can't test WARNINGS-P
  96              ;; after all?
  97              ;;(unless expected-failure-p
  98              ;;  (assert (not warnings-p)))
  99              (assert (eq (coerce-to-boolean failure-p) expected-failure-p))))
 100          (like (expr)
 101            (%like-or-dislike expr nil))
 102          (dislike (expr)
 103            (%like-or-dislike expr t)))
 104   ;; basic sanity
 105   (dislike '(defgeneric gf-for-ll-test-0 ("a" #p"b")))
 106   (like    '(defgeneric gf-for-ll-test-1 ()))
 107   (like    '(defgeneric gf-for-ll-test-2 (x)))
 108   ;; forbidden default or supplied-p for &OPTIONAL or &KEY arguments
 109   (dislike '(defgeneric gf-for-ll-test-3 (x &optional (y 0))))
 110   (like    '(defgeneric gf-for-ll-test-4 (x &optional y)))
 111   (dislike '(defgeneric gf-for-ll-test-5 (x y &key (z :z z-p))))
 112   (like    '(defgeneric gf-for-ll-test-6 (x y &key z)))
 113   (dislike '(defgeneric gf-for-ll-test-7 (x &optional (y 0) &key z)))
 114   (like    '(defgeneric gf-for-ll-test-8 (x &optional y &key z)))
 115   (dislike '(defgeneric gf-for-ll-test-9 (x &optional y &key (z :z))))
 116   (like    '(defgeneric gf-for-ll-test-10 (x &optional y &key z)))
 117   (dislike '(defgeneric gf-for-ll-test-11 (&optional &key (k :k k-p))))
 118   (like    '(defgeneric gf-for-ll-test-12 (&optional &key k)))
 119   ;; forbidden &AUX
 120   (dislike '(defgeneric gf-for-ll-test-13 (x y z &optional a &aux g h)))
 121   (like    '(defgeneric gf-for-ll-test-14 (x y z &optional a)))
 122   (dislike '(defgeneric gf-for-ll-test-bare-aux-1 (x &aux)))
 123   (like    '(defgeneric gf-for-ll-test-bare-aux-2 (x)))
 124   ;; also can't use bogoDEFMETHODish type-qualifier-ish decorations
 125   ;; on required arguments
 126   (dislike '(defgeneric gf-for-11-test-15 ((arg t))))
 127   (like '(defgeneric gf-for-11-test-16 (arg))))
 128
 129 ;;; structure-class tests setup
 130 (defclass structure-class-foo1 () () (:metaclass cl:structure-class))
 131 (defclass structure-class-foo2 (structure-class-foo1)
 132   () (:metaclass cl:structure-class))
 133
 134 ;;; standard-class tests setup
 135 (defclass standard-class-foo1 () () (:metaclass cl:standard-class))
 136 (defclass standard-class-foo2 (standard-class-foo1)
 137   () (:metaclass cl:standard-class))
 138
 139 (assert (typep (class-of (make-instance 'structure-class-foo1))
 140                'structure-class))
 141 (assert (typep (make-instance 'structure-class-foo1) 'structure-class-foo1))
 142 (assert (typep (make-instance 'standard-class-foo1) 'standard-class-foo1))
 143
 144 ;;; DEFGENERIC's blow-away-old-methods behavior is specified to have
 145 ;;; special hacks to distinguish between defined-with-DEFGENERIC-:METHOD
 146 ;;; methods and defined-with-DEFMETHOD methods, so that reLOADing
 147 ;;; DEFGENERIC-containing files does the right thing instead of
 148 ;;; randomly slicing your generic functions. (APD made this work
 149 ;;; in sbcl-0.7.0.2.)
 150 (defgeneric born-to-be-redefined (x)
 151   (:method ((x integer))
 152     'integer))
 153 (defmethod born-to-be-redefined ((x real))
 154   'real)
 155 (assert (eq (born-to-be-redefined 1) 'integer))
 156 (defgeneric born-to-be-redefined (x))
 157 (assert (eq (born-to-be-redefined 1) 'real)) ; failed until sbcl-0.7.0.2
 158 (defgeneric born-to-be-redefined (x)
 159   (:method ((x integer))
 160     'integer))
 161 (defmethod born-to-be-redefined ((x integer))
 162   'int)
 163 (assert (eq (born-to-be-redefined 1) 'int))
 164 (defgeneric born-to-be-redefined (x))
 165 (assert (eq (born-to-be-redefined 1) 'int))
 166 \f
 167 ;;; In the removal of ITERATE from SB-PCL, a bug was introduced
 168 ;;; preventing forward-references and also change-class (which
 169 ;;; forward-references used interally) from working properly.  One
 170 ;;; symptom was reported by Brian Spilsbury (sbcl-devel 2002-04-08),
 171 ;;; and another on IRC by Dan Barlow simultaneously.  Better check
 172 ;;; that it doesn't happen again.
 173 ;;;
 174 ;;; First, the forward references:
 175 (defclass forward-ref-a (forward-ref-b) ())
 176 (defclass forward-ref-b () ())
 177 ;;; (a couple more complicated examples found by Paul Dietz' test
 178 ;;; suite):
 179 (defclass forward-ref-c1 (forward-ref-c2) ())
 180 (defclass forward-ref-c2 (forward-ref-c3) ())
 181
 182 (defclass forward-ref-d1 (forward-ref-d2 forward-ref-d3) ())
 183 (defclass forward-ref-d2 (forward-ref-d4 forward-ref-d5) ())
 184
 185 ;;; Then change-class
 186 (defclass class-with-slots ()
 187   ((a-slot :initarg :a-slot :accessor a-slot)
 188    (b-slot :initarg :b-slot :accessor b-slot)
 189    (c-slot :initarg :c-slot :accessor c-slot)))
 190
 191 (let ((foo (make-instance 'class-with-slots
 192                           :a-slot 1
 193                           :b-slot 2
 194                           :c-slot 3)))
 195   (let ((bar (change-class foo 'class-with-slots)))
 196     (assert (= (a-slot bar) 1))
 197     (assert (= (b-slot bar) 2))
 198     (assert (= (c-slot bar) 3))))
 199
 200 ;;; some more CHANGE-CLASS testing, now that we have an ANSI-compliant
 201 ;;; version (thanks to Espen Johnsen)
 202 (defclass from-class ()
 203   ((foo :initarg :foo :accessor foo)))
 204 (defclass to-class ()
 205   ((foo :initarg :foo :accessor foo)
 206    (bar :initarg :bar :accessor bar)))
 207 (let* ((from (make-instance 'from-class :foo 1))
 208        (to (change-class from 'to-class :bar 2)))
 209   (assert (= (foo to) 1))
 210   (assert (= (bar to) 2)))
 211
 212 ;;; Until Pierre Mai's patch (sbcl-devel 2002-06-18, merged in
 213 ;;; sbcl-0.7.4.39) the :MOST-SPECIFIC-LAST option had no effect.
 214 (defgeneric bug180 (x)
 215   (:method-combination list :most-specific-last))
 216 (defmethod bug180 list ((x number))
 217   'number)
 218 (defmethod bug180 list ((x fixnum))
 219   'fixnum)
 220 (assert (equal (bug180 14) '(number fixnum)))
 221 \f
 222 ;;; printing a structure class should not loop indefinitely (or cause
 223 ;;; a stack overflow):
 224 (defclass test-printing-structure-class ()
 225   ((slot :initarg :slot))
 226   (:metaclass structure-class))
 227 (print (make-instance 'test-printing-structure-class :slot 2))
 228
 229 ;;; structure-classes should behave nicely when subclassed
 230 (defclass super-structure ()
 231   ((a :initarg :a :accessor a-accessor)
 232    (b :initform 2 :reader b-reader))
 233   (:metaclass structure-class))
 234 (defclass sub-structure (super-structure)
 235   ((c :initarg :c :writer c-writer :accessor c-accessor))
 236   (:metaclass structure-class))
 237 (let ((foo (make-instance 'sub-structure :a 1 :c 3)))
 238   (assert (= (a-accessor foo) 1))
 239   (assert (= (b-reader foo) 2))
 240   (assert (= (c-accessor foo) 3))
 241   (setf (a-accessor foo) 4)
 242   (c-writer 5 foo)
 243   (assert (= (a-accessor foo) 4))
 244   (assert (= (c-accessor foo) 5)))
 245 \f
 246 ;;; At least as of sbcl-0.7.4, PCL has code to support a special
 247 ;;; encoding of effective method functions for slot accessors as
 248 ;;; FIXNUMs. Given this special casing, it'd be easy for slot accessor
 249 ;;; functions to get broken in special ways even though ordinary
 250 ;;; generic functions work. As of sbcl-0.7.4 we didn't have any tests
 251 ;;; for that possibility. Now we have a few tests:
 252 (defclass fish ()
 253   ((fin :reader ffin :writer ffin!)
 254    (tail :reader ftail :writer ftail!)))
 255 (defvar *fish* (make-instance 'fish))
 256 (ffin! 'triangular-fin *fish*)
 257 (defclass cod (fish) ())
 258 (defvar *cod* (make-instance 'cod))
 259 (defparameter *clos-dispatch-side-fx* (make-array 0 :fill-pointer 0))
 260 (defmethod ffin! (new-fin (cod cod))
 261   (format t "~&about to set ~S fin to ~S~%" cod new-fin)
 262   (vector-push-extend '(cod) *clos-dispatch-side-fx*)
 263   (prog1
 264       (call-next-method)
 265     (format t "~&done setting ~S fin to ~S~%" cod new-fin)))
 266 (defmethod ffin! :before (new-fin (cod cod))
 267   (vector-push-extend '(:before cod) *clos-dispatch-side-fx*)
 268   (format t "~&exploring the CLOS dispatch zoo with COD fins~%"))
 269 (ffin! 'almost-triang-fin *cod*)
 270 (assert (eq (ffin *cod*) 'almost-triang-fin))
 271 (assert (equalp #((:before cod) (cod)) *clos-dispatch-side-fx*))
 272 \f
 273 ;;; Until sbcl-0.7.6.21, the long form of DEFINE-METHOD-COMBINATION
 274 ;;; ignored its options; Gerd Moellmann found and fixed the problem
 275 ;;; for cmucl (cmucl-imp 2002-06-18).
 276 (define-method-combination test-mc (x)
 277   ;; X above being a method-group-specifier
 278   ((primary () :required t))
 279   `(call-method ,(first primary)))
 280
 281 (defgeneric gf (obj)
 282   (:method-combination test-mc 1))
 283
 284 (defmethod gf (obj)
 285   obj)
 286 \f
 287 ;;; Until sbcl-0.7.7.20, some conditions weren't being signalled, and
 288 ;;; some others were of the wrong type:
 289 (macrolet ((assert-program-error (form)
 290              `(multiple-value-bind (value error)
 291                   (ignore-errors ,form)
 292                 (unless (and (null value) (typep error 'program-error))
 293                   (error "~S failed: ~S, ~S" ',form value error)))))
 294   (assert-program-error (defclass foo001 () (a b a)))
 295   (assert-program-error (defclass foo002 ()
 296                           (a b)
 297                           (:default-initargs x 'a x 'b)))
 298   (assert-program-error (defclass foo003 ()
 299                           ((a :allocation :class :allocation :class))))
 300   (assert-program-error (defclass foo004 ()
 301                           ((a :silly t))))
 302   ;; and some more, found by Wolfhard Buss and fixed for cmucl by Gerd
 303   ;; Moellmann in sbcl-0.7.8.x:
 304   (assert-program-error (progn
 305                           (defmethod odd-key-args-checking (&key (key 42)) key)
 306                           (odd-key-args-checking 3)))
 307   (assert (= (odd-key-args-checking) 42))
 308   (assert (eq (odd-key-args-checking :key t) t))
 309   ;; yet some more, fixed in sbcl-0.7.9.xx
 310   (assert-program-error (defclass foo005 ()
 311                           (:metaclass sb-pcl::funcallable-standard-class)
 312                           (:metaclass 1)))
 313   (assert-program-error (defclass foo006 ()
 314                           ((a :reader (setf a)))))
 315   (assert-program-error (defclass foo007 ()
 316                           ((a :initarg 1))))
 317   (assert-program-error (defclass foo008 ()
 318                           (a :initarg :a)
 319                           (:default-initargs :a 1)
 320                           (:default-initargs :a 2)))
 321   ;; and also BUG 47d, fixed in sbcl-0.8alpha.0.26
 322   (assert-program-error (defgeneric if (x)))
 323   ;; DEFCLASS should detect an error if slot names aren't suitable as
 324   ;; variable names:
 325   (assert-program-error (defclass foo009 ()
 326                           ((:a :initarg :a))))
 327   (assert-program-error (defclass foo010 ()
 328                           (("a" :initarg :a))))
 329   (assert-program-error (defclass foo011 ()
 330                           ((#1a() :initarg :a))))
 331   (assert-program-error (defclass foo012 ()
 332                           ((t :initarg :t))))
 333   (assert-program-error (defclass foo013 () ("a")))
 334   ;; specialized lambda lists have certain restrictions on ordering,
 335   ;; repeating keywords, and the like:
 336   (assert-program-error (defmethod foo014 ((foo t) &rest) nil))
 337   (assert-program-error (defmethod foo015 ((foo t) &rest x y) nil))
 338   (assert-program-error (defmethod foo016 ((foo t) &allow-other-keys) nil))
 339   (assert-program-error (defmethod foo017 ((foo t)
 340                                            &optional x &optional y) nil))
 341   (assert-program-error (defmethod foo018 ((foo t) &rest x &rest y) nil))
 342   (assert-program-error (defmethod foo019 ((foo t) &rest x &optional y) nil))
 343   (assert-program-error (defmethod foo020 ((foo t) &key x &optional y) nil))
 344   (assert-program-error (defmethod foo021 ((foo t) &key x &rest y) nil)))
 345 \f
 346 ;;; DOCUMENTATION's argument-precedence-order wasn't being faithfully
 347 ;;; preserved through the bootstrap process until sbcl-0.7.8.39.
 348 ;;; (thanks to Gerd Moellmann)
 349 (let ((answer (documentation '+ 'function)))
 350   (assert (stringp answer))
 351   (defmethod documentation ((x (eql '+)) y) "WRONG")
 352   (assert (string= (documentation '+ 'function) answer)))
 353 \f
 354 ;;; only certain declarations are permitted in DEFGENERIC
 355 (macrolet ((assert-program-error (form)
 356              `(multiple-value-bind (value error)
 357                   (ignore-errors ,form)
 358                 (assert (null value))
 359                 (assert (typep error 'program-error)))))
 360   (assert-program-error (defgeneric bogus-declaration (x)
 361                           (declare (special y))))
 362   (assert-program-error (defgeneric bogus-declaration2 (x)
 363                           (declare (notinline concatenate)))))
 364 ;;; CALL-NEXT-METHOD should call NO-NEXT-METHOD if there is no next
 365 ;;; method.
 366 (defmethod no-next-method-test ((x integer)) (call-next-method))
 367 (assert (null (ignore-errors (no-next-method-test 1))))
 368 (defmethod no-next-method ((g (eql #'no-next-method-test)) m &rest args)
 369   'success)
 370 (assert (eq (no-next-method-test 1) 'success))
 371 (assert (null (ignore-errors (no-next-method-test 'foo))))
 372 \f
 373 ;;; regression test for bug 176, following a fix that seems
 374 ;;; simultaneously to fix 140 while not exposing 176 (by Gerd
 375 ;;; Moellmann, merged in sbcl-0.7.9.12).
 376 (dotimes (i 10)
 377   (let ((lastname (intern (format nil "C176-~D" (1- i))))
 378         (name (intern (format nil "C176-~D" i))))
 379   (eval `(defclass ,name
 380              (,@(if (= i 0) nil (list lastname)))
 381            ()))
 382   (eval `(defmethod initialize-instance :after ((x ,name) &rest any)
 383            (declare (ignore any))))))
 384 (defclass b176 () (aslot-176))
 385 (defclass c176-0 (b176) ())
 386 (assert (= 1 (setf (slot-value (make-instance 'c176-9) 'aslot-176) 1)))
 387 \f
 388 ;;; DEFINE-METHOD-COMBINATION was over-eager at checking for duplicate
 389 ;;; primary methods:
 390 (define-method-combination dmc-test-mc (&optional (order :most-specific-first))
 391   ((around (:around))
 392    (primary (dmc-test-mc) :order order :required t))
 393    (let ((form (if (rest primary)
 394                    `(and ,@(mapcar #'(lambda (method)
 395                                        `(call-method ,method))
 396                                    primary))
 397                    `(call-method ,(first primary)))))
 398      (if around
 399          `(call-method ,(first around)
 400                        (,@(rest around)
 401                         (make-method ,form)))
 402          form)))
 403
 404 (defgeneric dmc-test-mc (&key k)
 405   (:method-combination dmc-test-mc))
 406
 407 (defmethod dmc-test-mc dmc-test-mc (&key k)
 408            k)
 409
 410 (dmc-test-mc :k 1)
 411 ;;; While I'm at it, DEFINE-METHOD-COMBINATION is defined to return
 412 ;;; the NAME argument, not some random method object. So:
 413 (assert (eq (define-method-combination dmc-test-return-foo)
 414             'dmc-test-return-foo))
 415 (assert (eq (define-method-combination dmc-test-return-bar :operator and)
 416             'dmc-test-return-bar))
 417 (assert (eq (define-method-combination dmc-test-return
 418                 (&optional (order :most-specific-first))
 419               ((around (:around))
 420                (primary (dmc-test-return) :order order :required t))
 421               (let ((form (if (rest primary)
 422                               `(and ,@(mapcar #'(lambda (method)
 423                                                   `(call-method ,method))
 424                                               primary))
 425                               `(call-method ,(first primary)))))
 426                 (if around
 427                     `(call-method ,(first around)
 428                       (,@(rest around)
 429                        (make-method ,form)))
 430                     form)))
 431             'dmc-test-return))
 432 \f
 433 ;;; DEFINE-METHOD-COMBINATION should, according to the description in 7.7,
 434 ;;; allow you to do everything in the body forms yourself if you specify
 435 ;;; exactly one method group whose qualifier-pattern is *
 436 ;;;
 437 ;;; The specific language is:
 438 ;;; "The use of method group specifiers provides a convenient syntax to select
 439 ;;; methods, to divide them among the possible roles, and to perform the
 440 ;;; necessary error checking. It is possible to perform further filtering of
 441 ;;; methods in the body forms by using normal list-processing operations and
 442 ;;; the functions method-qualifiers and invalid-method-error. It is permissible
 443 ;;; to use setq on the variables named in the method group specifiers and to
 444 ;;; bind additional variables. It is also possible to bypass the method group
 445 ;;; specifier mechanism and do everything in the body forms. This is
 446 ;;; accomplished by writing a single method group with * as its only
 447 ;;; qualifier-pattern; the variable is then bound to a list of all of the
 448 ;;; applicable methods, in most-specific-first order."
 449 (define-method-combination wam-test-method-combination-a ()
 450   ((all-methods *))
 451   (do ((methods all-methods (rest methods))
 452        (primary nil)
 453        (around nil))
 454       ((null methods)
 455        (let ((primary (nreverse primary))
 456              (around (nreverse around)))
 457          (if primary
 458               (let ((form (if (rest primary)
 459                              `(call-method ,(first primary) ,(rest primary))
 460                              `(call-method ,(first primary)))))
 461                 (if around
 462                     `(call-method ,(first around) (,@(rest around)
 463                                                    (make-method ,form)))
 464                     form))
 465               `(make-method (error "No primary methods")))))
 466     (let* ((method (first methods))
 467            (qualifier (first (method-qualifiers method))))
 468       (cond
 469         ((equal :around qualifier)
 470          (push method around))
 471         ((null qualifier)
 472          (push method primary))))))
 473
 474 (defgeneric wam-test-mc-a (val)
 475   (:method-combination wam-test-method-combination-a))
 476 (assert (raises-error? (wam-test-mc-a 13)))
 477 (defmethod wam-test-mc-a ((val number))
 478   (+ val (if (next-method-p) (call-next-method) 0)))
 479 (assert (= (wam-test-mc-a 13) 13))
 480 (defmethod wam-test-mc-a :around ((val number))
 481   (+ val (if (next-method-p) (call-next-method) 0)))
 482 (assert (= (wam-test-mc-a 13) 26))
 483
 484 ;;; DEFINE-METHOD-COMBINATION
 485 ;;; When two methods are in the same method group and have the same
 486 ;;; specializers, their sort order within the group may be ambiguous. Therefore,
 487 ;;; we should throw an error when we have two methods in the same group with
 488 ;;; the same specializers /as long as/ we have more than one method group
 489 ;;; or our single method group qualifier-pattern is not *. This resolves the
 490 ;;; apparent conflict with the above 'It is also possible to bypass' language.
 491 ;;;
 492 ;;; The language specifying this behavior is:
 493 ;;; "Note that two methods with identical specializers, but with different
 494 ;;; qualifiers, are not ordered by the algorithm described in Step 2 of the
 495 ;;; method selection and combination process described in Section 7.6.6
 496 ;;; (Method Selection and Combination). Normally the two methods play different
 497 ;;; roles in the effective method because they have different qualifiers, and
 498 ;;; no matter how they are ordered in the result of Step 2, the effective
 499 ;;; method is the same. If the two methods play the same role and their order
 500 ;;; matters, an error is signaled. This happens as part of the qualifier
 501 ;;; pattern matching in define-method-combination."
 502 ;;;
 503 ;;; Note that the spec pretty much equates 'method group' and 'role'.
 504 ;; First we ensure that it fails correctly when there is more than one
 505 ;; method group
 506 (define-method-combination wam-test-method-combination-b ()
 507   ((around (:around))
 508    (primary * :required t))
 509   (let ((form (if (rest primary)
 510                   `(call-method ,(first primary) ,(rest primary))
 511                   `(call-method ,(first primary)))))
 512     (if around
 513         `(call-method ,(first around) (,@(rest around)
 514                                        (make-method ,form)))
 515         form)))
 516
 517 (defgeneric wam-test-mc-b (val)
 518   (:method-combination wam-test-method-combination-b))
 519 (defmethod wam-test-mc-b ((val number))
 520   (+ val (if (next-method-p) (call-next-method) 0)))
 521 (assert (= (wam-test-mc-b 13) 13))
 522 (defmethod wam-test-mc-b :around ((val number))
 523   (+ val (if (next-method-p) (call-next-method) 0)))
 524 (assert (= (wam-test-mc-b 13) 26))
 525 (defmethod wam-test-mc-b :somethingelse ((val number))
 526   (+ val (if (next-method-p) (call-next-method) 0)))
 527 (assert (raises-error? (wam-test-mc-b 13)))
 528
 529 ;;; now, ensure that it fails with a single group with a qualifier-pattern
 530 ;;; that is not *
 531 (define-method-combination wam-test-method-combination-c ()
 532   ((methods listp :required t))
 533   (if (rest methods)
 534       `(call-method ,(first methods) ,(rest methods))
 535       `(call-method ,(first methods))))
 536
 537 (defgeneric wam-test-mc-c (val)
 538   (:method-combination wam-test-method-combination-c))
 539 (assert (raises-error? (wam-test-mc-c 13)))
 540 (defmethod wam-test-mc-c :foo ((val number))
 541   (+ val (if (next-method-p) (call-next-method) 0)))
 542 (assert (= (wam-test-mc-c 13) 13))
 543 (defmethod wam-test-mc-c :bar ((val number))
 544   (+ val (if (next-method-p) (call-next-method) 0)))
 545 (assert (raises-error? (wam-test-mc-c 13)))
 546
 547 ;;; DEFMETHOD should signal an ERROR if an incompatible lambda list is
 548 ;;; given:
 549 (defmethod incompatible-ll-test-1 (x) x)
 550 (assert (raises-error? (defmethod incompatible-ll-test-1 (x y) y)))
 551 (assert (raises-error? (defmethod incompatible-ll-test-1 (x &rest y) y)))
 552 ;;; Sneakily using a bit of MOPness to check some consistency
 553 (assert (= (length
 554             (sb-pcl:generic-function-methods #'incompatible-ll-test-1)) 1))
 555
 556 (defmethod incompatible-ll-test-2 (x &key bar) bar)
 557 (assert (raises-error? (defmethod incompatible-ll-test-2 (x) x)))
 558 (defmethod incompatible-ll-test-2 (x &rest y) y)
 559 (assert (= (length
 560             (sb-pcl:generic-function-methods #'incompatible-ll-test-2)) 1))
 561 (defmethod incompatible-ll-test-2 ((x integer) &key bar) bar)
 562 (assert (= (length
 563             (sb-pcl:generic-function-methods #'incompatible-ll-test-2)) 2))
 564
 565 ;;; Per Christophe, this is an illegal method call because of 7.6.5
 566 (assert (raises-error? (incompatible-ll-test-2 t 1 2)))
 567
 568 (assert (eq (incompatible-ll-test-2 1 :bar 'yes) 'yes))
 569
 570 (defmethod incompatible-ll-test-3 ((x integer)) x)
 571 (remove-method #'incompatible-ll-test-3
 572                (find-method #'incompatible-ll-test-3
 573                             nil
 574                             (list (find-class 'integer))))
 575 (assert (raises-error? (defmethod incompatible-ll-test-3 (x y) (list x y))))
 576
 577 \f
 578 ;;; Attempting to instantiate classes with forward references in their
 579 ;;; CPL should signal errors (FIXME: of what type?)
 580 (defclass never-finished-class (this-one-unfinished-too) ())
 581 (multiple-value-bind (result error)
 582     (ignore-errors (make-instance 'never-finished-class))
 583   (assert (null result))
 584   (assert (typep error 'error)))
 585 (multiple-value-bind (result error)
 586     (ignore-errors (make-instance 'this-one-unfinished-too))
 587   (assert (null result))
 588   (assert (typep error 'error)))
 589 \f
 590 ;;; Classes with :ALLOCATION :CLASS slots should be subclassable (and
 591 ;;; weren't for a while in sbcl-0.7.9.xx)
 592 (defclass superclass-with-slot ()
 593   ((a :allocation :class)))
 594 (defclass subclass-for-class-allocation (superclass-with-slot) ())
 595 (make-instance 'subclass-for-class-allocation)
 596 \f
 597 ;;; bug #136: CALL-NEXT-METHOD was being a little too lexical,
 598 ;;; resulting in failure in the following:
 599 (defmethod call-next-method-lexical-args ((x integer))
 600   x)
 601 (defmethod call-next-method-lexical-args :around ((x integer))
 602   (let ((x (1+ x)))
 603     (call-next-method)))
 604 (assert (= (call-next-method-lexical-args 3) 3))
 605 \f
 606 ;;; DEFINE-METHOD-COMBINATION with arguments was hopelessly broken
 607 ;;; until 0.7.9.5x
 608 (defvar *d-m-c-args-test* nil)
 609 (define-method-combination progn-with-lock ()
 610   ((methods ()))
 611   (:arguments object)
 612   `(unwind-protect
 613     (progn (lock (object-lock ,object))
 614            ,@(mapcar #'(lambda (method)
 615                          `(call-method ,method))
 616                      methods))
 617     (unlock (object-lock ,object))))
 618 (defun object-lock (obj)
 619   (push "object-lock" *d-m-c-args-test*)
 620   obj)
 621 (defun unlock (obj)
 622   (push "unlock" *d-m-c-args-test*)
 623   obj)
 624 (defun lock (obj)
 625   (push "lock" *d-m-c-args-test*)
 626   obj)
 627 (defgeneric d-m-c-args-test (x)
 628   (:method-combination progn-with-lock))
 629 (defmethod d-m-c-args-test ((x symbol))
 630   (push "primary" *d-m-c-args-test*))
 631 (defmethod d-m-c-args-test ((x number))
 632   (error "foo"))
 633 (assert (equal (d-m-c-args-test t) '("primary" "lock" "object-lock")))
 634 (assert (equal *d-m-c-args-test*
 635                '("unlock" "object-lock" "primary" "lock" "object-lock")))
 636 (setf *d-m-c-args-test* nil)
 637 (ignore-errors (d-m-c-args-test 1))
 638 (assert (equal *d-m-c-args-test*
 639                '("unlock" "object-lock" "lock" "object-lock")))
 640 \f
 641 ;;; The walker (on which DEFMETHOD depended) didn't know how to handle
 642 ;;; SYMBOL-MACROLET properly.  In fact, as of sbcl-0.7.10.20 it still
 643 ;;; doesn't, but it does well enough to compile the following without
 644 ;;; error (the problems remain in asking for a complete macroexpansion
 645 ;;; of an arbitrary form).
 646 (symbol-macrolet ((x 1))
 647   (defmethod bug222 (z)
 648     (macrolet ((frob (form) `(progn ,form ,x)))
 649       (frob (print x)))))
 650 (assert (= (bug222 t) 1))
 651
 652 ;;; also, a test case to guard against bogus environment hacking:
 653
 654 (eval-when (:compile-toplevel :load-toplevel :execute)
 655   (setq bug222-b 3))
 656 ;;; this should at the least compile:
 657 (let ((bug222-b 1))
 658   (defmethod bug222-b (z stream)
 659     (macrolet ((frob (form) `(progn ,form ,bug222-b)))
 660       (frob (format stream "~D~%" bug222-b)))))
 661 ;;; and it would be nice (though not specified by ANSI) if the answer
 662 ;;; were as follows:
 663 (let ((x (make-string-output-stream)))
 664   (let ((value (bug222-b t x)))
 665     ;; not specified by ANSI
 666     #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
 667     (assert (= value 3)))
 668   ;; specified.
 669   (assert (char= (char (get-output-stream-string x) 0) #\1)))
 670 \f
 671 ;;; REINITIALIZE-INSTANCE, in the ctor optimization, wasn't checking
 672 ;;; for invalid initargs where it should:
 673 (defclass class234 () ())
 674 (defclass subclass234 (class234) ())
 675 (defvar *bug234* 0)
 676 (defun bug-234 ()
 677   (reinitialize-instance (make-instance 'class234) :dummy 0))
 678 (defun subbug-234 ()
 679   (reinitialize-instance (make-instance 'subclass234) :dummy 0))
 680 (assert (raises-error? (bug-234) program-error))
 681 (defmethod shared-initialize :after ((i class234) slots &key dummy)
 682   (incf *bug234*))
 683 (assert (typep (subbug-234) 'subclass234))
 684 (assert (= *bug234*
 685            ;; once for MAKE-INSTANCE, once for REINITIALIZE-INSTANCE
 686            2))
 687
 688 ;;; also, some combinations of MAKE-INSTANCE and subclassing missed
 689 ;;; new methods (Gerd Moellmann sbcl-devel 2002-12-29):
 690 (defclass class234-b1 () ())
 691 (defclass class234-b2 (class234-b1) ())
 692 (defvar *bug234-b* 0)
 693 (defun bug234-b ()
 694   (make-instance 'class234-b2))
 695 (compile 'bug234-b)
 696 (bug234-b)
 697 (assert (= *bug234-b* 0))
 698 (defmethod initialize-instance :before ((x class234-b1) &rest args)
 699   (declare (ignore args))
 700   (incf *bug234-b*))
 701 (bug234-b)
 702 (assert (= *bug234-b* 1))
 703 \f
 704 ;;; we should be able to make classes with uninterned names:
 705 (defclass #:class-with-uninterned-name () ())
 706 \f
 707 ;;; SLOT-MISSING should be called when there are missing slots.
 708 (defclass class-with-all-slots-missing () ())
 709 (defmethod slot-missing (class (o class-with-all-slots-missing)
 710                          slot-name op
 711                          &optional new-value)
 712   op)
 713 (assert (eq (slot-value (make-instance 'class-with-all-slots-missing) 'foo)
 714             'slot-value))
 715 (assert (eq (funcall (lambda (x) (slot-value x 'bar))
 716                      (make-instance 'class-with-all-slots-missing))
 717             'slot-value))
 718 (assert (eq (funcall (lambda (x) (setf (slot-value x 'baz) 'baz))
 719                      (make-instance 'class-with-all-slots-missing))
 720             ;; SLOT-MISSING's value is specified to be ignored; we
 721             ;; return NEW-VALUE.
 722             'baz))
 723 \f
 724 ;;; we should be able to specialize on anything that names a class.
 725 (defclass name-for-class () ())
 726 (defmethod something-that-specializes ((x name-for-class)) 1)
 727 (setf (find-class 'other-name-for-class) (find-class 'name-for-class))
 728 (defmethod something-that-specializes ((x other-name-for-class)) 2)
 729 (assert (= (something-that-specializes (make-instance 'name-for-class)) 2))
 730 (assert (= (something-that-specializes (make-instance 'other-name-for-class))
 731            2))
 732 \f
 733 ;;; more forward referenced classes stuff
 734 (defclass frc-1 (frc-2) ())
 735 (assert (subtypep 'frc-1 (find-class 'frc-2)))
 736 (assert (subtypep (find-class 'frc-1) 'frc-2))
 737 (assert (not (subtypep (find-class 'frc-2) 'frc-1)))
 738 (defclass frc-2 (frc-3) ((a :initarg :a)))
 739 (assert (subtypep 'frc-1 (find-class 'frc-3)))
 740 (defclass frc-3 () ())
 741 (assert (typep (make-instance 'frc-1 :a 2) (find-class 'frc-1)))
 742 (assert (typep (make-instance 'frc-2 :a 3) (find-class 'frc-2)))
 743 \f
 744 ;;; check that we can define classes with two slots of different names
 745 ;;; (even if it STYLE-WARNs).
 746 (defclass odd-name-class ()
 747   ((name :initarg :name)
 748    (cl-user::name :initarg :name2)))
 749 (let ((x (make-instance 'odd-name-class :name 1 :name2 2)))
 750   (assert (= (slot-value x 'name) 1))
 751   (assert (= (slot-value x 'cl-user::name) 2)))
 752 \f
 753 ;;; ALLOCATE-INSTANCE should work on structures, even if defined by
 754 ;;; DEFSTRUCT (and not DEFCLASS :METACLASS STRUCTURE-CLASS).
 755 (defstruct allocatable-structure a)
 756 (assert (typep (allocate-instance (find-class 'allocatable-structure))
 757                'allocatable-structure))
 758 \f
 759 ;;; Bug found by Paul Dietz when devising CPL tests: somewhat
 760 ;;; amazingly, calls to CPL would work a couple of times, and then
 761 ;;; start returning NIL.  A fix was found (relating to the
 762 ;;; applicability of constant-dfun optimization) by Gerd Moellmann.
 763 (defgeneric cpl (x)
 764   (:method-combination list)
 765   (:method list ((x broadcast-stream)) 'broadcast-stream)
 766   (:method list ((x integer)) 'integer)
 767   (:method list ((x number)) 'number)
 768   (:method list ((x stream)) 'stream)
 769   (:method list ((x structure-object)) 'structure-object))
 770 (assert (equal (cpl 0) '(integer number)))
 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 (make-broadcast-stream))
 776                '(broadcast-stream stream structure-object)))
 777 (assert (equal (cpl (make-broadcast-stream))
 778                '(broadcast-stream stream structure-object)))
 779 (assert (equal (cpl (make-broadcast-stream))
 780                '(broadcast-stream stream structure-object)))
 781 \f
 782 ;;; Bug in CALL-NEXT-METHOD: assignment to the method's formal
 783 ;;; parameters shouldn't affect the arguments to the next method for a
 784 ;;; no-argument call to CALL-NEXT-METHOD
 785 (defgeneric cnm-assignment (x)
 786   (:method (x) x)
 787   (:method ((x integer)) (setq x 3)
 788            (list x (call-next-method) (call-next-method x))))
 789 (assert (equal (cnm-assignment 1) '(3 1 3)))
 790 \f
 791 ;;; Bug reported by Istvan Marko 2003-07-09
 792 (let ((class-name (gentemp)))
 793   (loop for i from 1 to 9
 794         for slot-name = (intern (format nil "X~D" i))
 795         for initarg-name = (intern (format nil "X~D" i) :keyword)
 796         collect `(,slot-name :initarg ,initarg-name) into slot-descs
 797         append `(,initarg-name (list 0)) into default-initargs
 798         finally (eval `(defclass ,class-name ()
 799                          (,@slot-descs)
 800                          (:default-initargs ,@default-initargs))))
 801   (let ((f (compile nil `(lambda () (make-instance ',class-name)))))
 802     (assert (typep (funcall f) class-name))))
 803
 804 ;;; bug 262: DEFMETHOD failed on a generic function without a lambda
 805 ;;; list
 806 (ensure-generic-function 'bug262)
 807 (defmethod bug262 (x y)
 808   (list x y))
 809 (assert (equal (bug262 1 2) '(1 2)))
 810
 811 ;;; salex on #lisp 2003-10-13 reported that type declarations inside
 812 ;;; WITH-SLOTS are too hairy to be checked
 813 (defun ensure-no-notes (form)
 814   (handler-case (compile nil `(lambda () ,form))
 815     (sb-ext:compiler-note (c)
 816       ;; FIXME: it would be better to check specifically for the "type
 817       ;; is too hairy" note
 818       (error c))))
 819 (defvar *x*)
 820 (ensure-no-notes '(with-slots (a) *x*
 821                    (declare (integer a))
 822                    a))
 823 (ensure-no-notes '(with-slots (a) *x*
 824                    (declare (integer a))
 825                    (declare (notinline slot-value))
 826                    a))
 827
 828 ;;; from CLHS 7.6.5.1
 829 (defclass character-class () ((char :initarg :char)))
 830 (defclass picture-class () ((glyph :initarg :glyph)))
 831 (defclass character-picture-class (character-class picture-class) ())
 832
 833 (defmethod width ((c character-class) &key font) font)
 834 (defmethod width ((p picture-class) &key pixel-size) pixel-size)
 835
 836 (assert (raises-error?
 837          (width (make-instance 'character-class :char #\Q)
 838                 :font 'baskerville :pixel-size 10)
 839          program-error))
 840 (assert (raises-error?
 841          (width (make-instance 'picture-class :glyph #\Q)
 842                 :font 'baskerville :pixel-size 10)
 843          program-error))
 844 (assert (eq (width (make-instance 'character-picture-class :char #\Q)
 845                    :font 'baskerville :pixel-size 10)
 846             'baskerville))
 847
 848 ;;; class redefinition shouldn't give any warnings, in the usual case
 849 (defclass about-to-be-redefined () ((some-slot :accessor some-slot)))
 850 (handler-bind ((warning #'error))
 851   (defclass about-to-be-redefined () ((some-slot :accessor some-slot))))
 852
 853 ;;; attempts to add accessorish methods to generic functions with more
 854 ;;; complex lambda lists should fail
 855 (defgeneric accessoroid (object &key &allow-other-keys))
 856 (assert (raises-error?
 857          (defclass accessoroid-class () ((slot :accessor accessoroid)))
 858          program-error))
 859
 860 ;;; reported by Bruno Haible sbcl-devel 2004-04-15
 861 (defclass shared-slot-and-redefinition ()
 862   ((size :initarg :size :initform 1 :allocation :class)))
 863 (let ((i (make-instance 'shared-slot-and-redefinition)))
 864   (defclass shared-slot-and-redefinition ()
 865     ((size :initarg :size :initform 2 :allocation :class)))
 866   (assert (= (slot-value i 'size) 1)))
 867
 868 ;;; reported by Bruno Haible sbcl-devel 2004-04-15
 869 (defclass superclass-born-to-be-obsoleted () (a))
 870 (defclass subclass-born-to-be-obsoleted (superclass-born-to-be-obsoleted) ())
 871 (defparameter *born-to-be-obsoleted*
 872   (make-instance 'subclass-born-to-be-obsoleted))
 873 (defparameter *born-to-be-obsoleted-obsoleted* nil)
 874 (defmethod update-instance-for-redefined-class
 875     ((o subclass-born-to-be-obsoleted) a d pl &key)
 876   (setf *born-to-be-obsoleted-obsoleted* t))
 877 (make-instances-obsolete 'superclass-born-to-be-obsoleted)
 878 (slot-boundp *born-to-be-obsoleted* 'a)
 879 (assert *born-to-be-obsoleted-obsoleted*)
 880
 881 ;;; additional test suggested by Bruno Haible sbcl-devel 2004-04-21
 882 (defclass super-super-obsoleted () (a))
 883 (defclass super-obsoleted-1 (super-super-obsoleted) ())
 884 (defclass super-obsoleted-2 (super-super-obsoleted) ())
 885 (defclass obsoleted (super-obsoleted-1 super-obsoleted-2) ())
 886 (defparameter *obsoleted* (make-instance 'obsoleted))
 887 (defparameter *obsoleted-counter* 0)
 888 (defmethod update-instance-for-redefined-class ((o obsoleted) a d pl &key)
 889   (incf *obsoleted-counter*))
 890 (make-instances-obsolete 'super-super-obsoleted)
 891 (slot-boundp *obsoleted* 'a)
 892 (assert (= *obsoleted-counter* 1))
 893
 894 ;;; yet another MAKE-INSTANCES-OBSOLETE test, this time from Nikodemus
 895 ;;; Siivola.  Not all methods for accessing slots are created equal...
 896 (defclass yet-another-obsoletion-super () ((obs :accessor obs-of :initform 0)))
 897 (defclass yet-another-obsoletion-sub (yet-another-obsoletion-super) ())
 898 (defmethod shared-initialize :after ((i yet-another-obsoletion-super)
 899                                      slots &rest init)
 900   (incf (obs-of i)))
 901
 902 (defvar *yao-super* (make-instance 'yet-another-obsoletion-super))
 903 (defvar *yao-sub* (make-instance 'yet-another-obsoletion-sub))
 904
 905 (assert (= (obs-of *yao-super*) 1))
 906 (assert (= (obs-of *yao-sub*) 1))
 907 (make-instances-obsolete 'yet-another-obsoletion-super)
 908 (assert (= (obs-of *yao-sub*) 2))
 909 (assert (= (obs-of *yao-super*) 2))
 910 (make-instances-obsolete 'yet-another-obsoletion-super)
 911 (assert (= (obs-of *yao-super*) 3))
 912 (assert (= (obs-of *yao-sub*) 3))
 913 (assert (= (slot-value *yao-super* 'obs) 3))
 914 (assert (= (slot-value *yao-sub* 'obs) 3))
 915
 916 ;;; one more MIO test: variable slot names
 917 (defclass mio () ((x :initform 42)))
 918 (defvar *mio-slot* 'x)
 919 (defparameter *mio-counter* 0)
 920 (defmethod update-instance-for-redefined-class ((instance mio) new old plist &key)
 921   (incf *mio-counter*))
 922
 923 (let ((x (make-instance 'mio)))
 924   (make-instances-obsolete 'mio)
 925   (slot-value x *mio-slot*))
 926
 927 (let ((x (make-instance 'mio)))
 928   (make-instances-obsolete 'mio)
 929   (setf (slot-value x *mio-slot*) 13))
 930
 931 (let ((x (make-instance 'mio)))
 932   (make-instances-obsolete 'mio)
 933   (slot-boundp x *mio-slot*))
 934
 935 (let ((x (make-instance 'mio)))
 936   (make-instances-obsolete 'mio)
 937   (slot-makunbound x *mio-slot*))
 938
 939 (assert (= 4 *mio-counter*))
 940
 941 ;;; shared -> local slot transfers of inherited slots, reported by
 942 ;;; Bruno Haible
 943 (let (i)
 944   (defclass super-with-magic-slot ()
 945     ((magic :initarg :size :initform 1 :allocation :class)))
 946   (defclass sub-of-super-with-magic-slot (super-with-magic-slot) ())
 947   (setq i (make-instance 'sub-of-super-with-magic-slot))
 948   (defclass super-with-magic-slot ()
 949     ((magic :initarg :size :initform 2)))
 950   (assert (= 1 (slot-value i 'magic))))
 951
 952 ;;; MAKE-INSTANCES-OBSOLETE return values
 953 (defclass one-more-to-obsolete () ())
 954 (assert (eq 'one-more-to-obsolete
 955             (make-instances-obsolete 'one-more-to-obsolete)))
 956 (assert (eq (find-class 'one-more-to-obsolete)
 957             (make-instances-obsolete (find-class 'one-more-to-obsolete))))
 958
 959 ;;; Sensible error instead of a BUG. Reported by Thomas Burdick.
 960 (multiple-value-bind (value err)
 961     (ignore-errors
 962       (defclass slot-def-with-duplicate-accessors ()
 963         ((slot :writer get-slot :reader get-slot))))
 964   (assert (typep err 'error))
 965   (assert (not (typep err 'sb-int:bug))))
 966
 967 ;;; BUG 321: errors in parsing DEFINE-METHOD-COMBINATION arguments
 968 ;;; lambda lists.
 969
 970 (define-method-combination w-args ()
 971   ((method-list *))
 972   (:arguments arg1 arg2 &aux (extra :extra))
 973   `(progn ,@(mapcar (lambda (method) `(call-method ,method)) method-list)))
 974 (defgeneric mc-test-w-args (p1 p2 s)
 975   (:method-combination w-args)
 976   (:method ((p1 number) (p2 t) s)
 977     (vector-push-extend (list 'number p1 p2) s))
 978   (:method ((p1 string) (p2 t) s)
 979     (vector-push-extend (list 'string p1 p2) s))
 980   (:method ((p1 t) (p2 t) s) (vector-push-extend (list t p1 p2) s)))
 981 (let ((v (make-array 0 :adjustable t :fill-pointer t)))
 982   (assert (= (mc-test-w-args 1 2 v) 1))
 983   (assert (equal (aref v 0) '(number 1 2)))
 984   (assert (equal (aref v 1) '(t 1 2))))
 985
 986 ;;; BUG 276: declarations and mutation.
 987 (defmethod fee ((x fixnum))
 988   (setq x (/ x 2))
 989   x)
 990 (assert (= (fee 1) 1/2))
 991 (defmethod fum ((x fixnum))
 992   (setf x (/ x 2))
 993   x)
 994 (assert (= (fum 3) 3/2))
 995 (defmethod fii ((x fixnum))
 996   (declare (special x))
 997   (setf x (/ x 2))
 998   x)
 999 (assert (= (fii 1) 1/2))
1000 (defvar *faa*)
1001 (defmethod faa ((*faa* string-stream))
1002   (setq *faa* (make-broadcast-stream *faa*))
1003   (write-line "Break, you sucker!" *faa*)
1004   'ok)
1005 (assert (eq 'ok (faa (make-string-output-stream))))
1006 (defmethod fex ((x fixnum) (y fixnum))
1007   (multiple-value-setq (x y) (values (/ x y) (/ y x)))
1008   (list x y))
1009 (assert (equal (fex 5 3) '(5/3 3/5)))
1010
1011 ;;; Bug reported by Zach Beane; incorrect return of (function
1012 ;;; ',fun-name) in defgeneric
1013 (assert
1014  (typep (funcall (compile nil
1015                           '(lambda () (flet ((nonsense () nil))
1016                                         (defgeneric nonsense ())))))
1017         'generic-function))
1018
1019 (assert
1020  (typep (funcall (compile nil
1021                           '(lambda () (flet ((nonsense-2 () nil))
1022                                         (defgeneric nonsense-2 ()
1023                                           (:method () t))))))
1024         'generic-function))
1025
1026 ;;; bug reported by Bruno Haible: (setf find-class) using a
1027 ;;; forward-referenced class
1028 (defclass fr-sub (fr-super) ())
1029 (setf (find-class 'fr-alt) (find-class 'fr-super))
1030 (assert (eq (find-class 'fr-alt) (find-class 'fr-super)))
1031
1032
1033 ;;; ANSI Figure 4-8: all defined classes.  Check that we can define
1034 ;;; methods on all of these.
1035 (progn
1036   (defgeneric method-for-defined-classes (x))
1037   (dolist (c '(arithmetic-error
1038                generic-function simple-error array hash-table
1039                simple-type-error
1040                bit-vector integer simple-warning
1041                broadcast-stream list standard-class
1042                built-in-class logical-pathname standard-generic-function
1043                cell-error method standard-method
1044                character method-combination standard-object
1045                class null storage-condition
1046                complex number stream
1047                concatenated-stream package stream-error
1048                condition package-error string
1049                cons parse-error string-stream
1050                control-error pathname structure-class
1051                division-by-zero print-not-readable structure-object
1052                echo-stream program-error style-warning
1053                end-of-file random-state symbol
1054                error ratio synonym-stream
1055                file-error rational t
1056                file-stream reader-error two-way-stream
1057                float readtable type-error
1058                floating-point-inexact real unbound-slot
1059                floating-point-invalid-operation restart unbound-variable
1060                floating-point-overflow sequence undefined-function
1061                floating-point-underflow serious-condition vector
1062                function simple-condition warning))
1063     (eval `(defmethod method-for-defined-classes ((x ,c)) (princ x))))
1064   (assert (string= (with-output-to-string (*standard-output*)
1065                      (method-for-defined-classes #\3))
1066                    "3")))
1067
1068
1069 \f
1070 ;;; When class definition does not complete due to a bad accessor
1071 ;;; name, do not cause an error when a new accessor name is provided
1072 ;;; during class redefinition
1073
1074 (defun existing-name (object)
1075   (list object))
1076
1077 (assert (raises-error? (defclass redefinition-of-accessor-class ()
1078                          ((slot :accessor existing-name)))))
1079
1080 (defclass redefinition-of-accessor-class ()
1081   ((slot :accessor new-name)))
1082
1083 \f
1084
1085 (load "package-ctor-bug.lisp")
1086 (assert (= (package-ctor-bug:test) 3))
1087 (delete-package "PACKAGE-CTOR-BUG")
1088 (load "package-ctor-bug.lisp")
1089 (assert (= (package-ctor-bug:test) 3))
1090
1091 (with-test (:name (:defmethod (setf find-class) integer))
1092   (mapcar #'eval
1093           '(
1094             (deftype defined-type () 'integer)
1095             (assert (raises-error?
1096                      (defmethod method-on-defined-type ((x defined-type)) x)))
1097             (deftype defined-type-and-class () 'integer)
1098             (setf (find-class 'defined-type-and-class) (find-class 'integer))
1099             (defmethod method-on-defined-type-and-class
1100                 ((x defined-type-and-class))
1101               (1+ x))
1102             (assert (= (method-on-defined-type-and-class 3) 4)))))
1103
1104 ;; bug 281
1105 (let ((sb-pcl::*max-emf-precomputation-methods* 0))
1106   (eval '(defgeneric bug-281 (x)
1107           (:method-combination +)
1108           (:method ((x symbol)) 1)
1109           (:method + ((x number)) x)))
1110   (assert (= 1 (bug-281 1)))
1111   (assert (= 4.2 (bug-281 4.2)))
1112   (multiple-value-bind (val err) (ignore-errors (bug-281 'symbol))
1113     (assert (not val))
1114     (assert (typep err 'error))))
1115 \f
1116 ;;; RESTART-CASE and CALL-METHOD
1117
1118 ;;; from Bruno Haible
1119
1120 (defun rc-cm/prompt-for-new-values ()
1121   (format *debug-io* "~&New values: ")
1122   (finish-output *debug-io*)
1123   (list (read *debug-io*)))
1124
1125 (defun rc-cm/add-method-restarts (form method)
1126   (let ((block (gensym))
1127         (tag (gensym)))
1128     `(block ,block
1129       (tagbody
1130          ,tag
1131          (return-from ,block
1132            (restart-case ,form
1133              (method-redo ()
1134                :report (lambda (stream)
1135                          (format stream "Try calling ~S again." ,method))
1136                (go ,tag))
1137              (method-return (l)
1138                :report (lambda (stream)
1139                          (format stream "Specify return values for ~S call."
1140                                  ,method))
1141                :interactive (lambda () (rc-cm/prompt-for-new-values))
1142                (return-from ,block (values-list l)))))))))
1143
1144 (defun rc-cm/convert-effective-method (efm)
1145   (if (consp efm)
1146       (if (eq (car efm) 'call-method)
1147           (let ((method-list (third efm)))
1148             (if (or (typep (first method-list) 'method) (rest method-list))
1149                 ;; Reduce the case of multiple methods to a single one.
1150                 ;; Make the call to the next-method explicit.
1151                 (rc-cm/convert-effective-method
1152                  `(call-method ,(second efm)
1153                    ((make-method
1154                      (call-method ,(first method-list) ,(rest method-list))))))
1155                 ;; Now the case of at most one method.
1156                 (if (typep (second efm) 'method)
1157                     ;; Wrap the method call in a RESTART-CASE.
1158                     (rc-cm/add-method-restarts
1159                      (cons (rc-cm/convert-effective-method (car efm))
1160                            (rc-cm/convert-effective-method (cdr efm)))
1161                      (second efm))
1162                     ;; Normal recursive processing.
1163                     (cons (rc-cm/convert-effective-method (car efm))
1164                           (rc-cm/convert-effective-method (cdr efm))))))
1165           (cons (rc-cm/convert-effective-method (car efm))
1166                 (rc-cm/convert-effective-method (cdr efm))))
1167       efm))
1168
1169 (define-method-combination standard-with-restarts ()
1170   ((around (:around))
1171    (before (:before))
1172    (primary () :required t)
1173    (after (:after)))
1174   (flet ((call-methods-sequentially (methods)
1175            (mapcar #'(lambda (method)
1176                        `(call-method ,method))
1177                    methods)))
1178     (let ((form (if (or before after (rest primary))
1179                     `(multiple-value-prog1
1180                        (progn
1181                          ,@(call-methods-sequentially before)
1182                          (call-method ,(first primary) ,(rest primary)))
1183                       ,@(call-methods-sequentially (reverse after)))
1184                     `(call-method ,(first primary)))))
1185       (when around
1186         (setq form
1187               `(call-method ,(first around)
1188                 (,@(rest around) (make-method ,form)))))
1189       (rc-cm/convert-effective-method form))))
1190
1191 (defgeneric rc-cm/testgf16 (x)
1192   (:method-combination standard-with-restarts))
1193 (defclass rc-cm/testclass16a () ())
1194 (defclass rc-cm/testclass16b (rc-cm/testclass16a) ())
1195 (defclass rc-cm/testclass16c (rc-cm/testclass16a) ())
1196 (defclass rc-cm/testclass16d (rc-cm/testclass16b rc-cm/testclass16c) ())
1197 (defmethod rc-cm/testgf16 ((x rc-cm/testclass16a))
1198   (list 'a
1199         (not (null (find-restart 'method-redo)))
1200         (not (null (find-restart 'method-return)))))
1201 (defmethod rc-cm/testgf16 ((x rc-cm/testclass16b))
1202   (cons 'b (call-next-method)))
1203 (defmethod rc-cm/testgf16 ((x rc-cm/testclass16c))
1204   (cons 'c (call-next-method)))
1205 (defmethod rc-cm/testgf16 ((x rc-cm/testclass16d))
1206   (cons 'd (call-next-method)))
1207 (assert (equal (rc-cm/testgf16 (make-instance 'rc-cm/testclass16d))
1208                '(d b c a t t)))
1209
1210 ;;; test case from Gerd Moellmann
1211 (define-method-combination r-c/c-m-1 ()
1212   ((primary () :required t))
1213   `(restart-case (call-method ,(first primary))
1214      ()))
1215
1216 (defgeneric r-c/c-m-1-gf ()
1217   (:method-combination r-c/c-m-1)
1218   (:method () nil))
1219
1220 (assert (null (r-c/c-m-1-gf)))
1221
1222 (handler-bind ((warning #'error))
1223   (eval '(defclass class-for-ctor/class-slot ()
1224           ((class-slot :initarg :class-slot :allocation :class))))
1225   (eval '(let ((c1 (make-instance 'class-for-ctor/class-slot))
1226                (c2 (make-instance 'class-for-ctor/class-slot :class-slot 1)))
1227           (assert (equal (list (slot-value c1 'class-slot)
1228                                (slot-value c2 'class-slot))
1229                    (list 1 1))))))
1230 \f
1231 ;;; tests of ctors on anonymous classes
1232 (defparameter *unnamed* (defclass ctor-unnamed-literal-class () ()))
1233 (setf (class-name *unnamed*) nil)
1234 (setf (find-class 'ctor-unnamed-literal-class) nil)
1235 (defparameter *unnamed2* (defclass ctor-unnamed-literal-class2 () ()))
1236 (defun ctor-unnamed-literal-class ()
1237   (make-instance '#.*unnamed*))
1238 (compile 'ctor-unnamed-literal-class)
1239 (defun ctor-unnamed-literal-class2 ()
1240   (make-instance '#.(find-class 'ctor-unnamed-literal-class2)))
1241 (compile 'ctor-unnamed-literal-class2)
1242 (defun ctor-unnamed-literal-class2/symbol ()
1243   (make-instance 'ctor-unnamed-literal-class2))
1244 (compile 'ctor-unnamed-literal-class2/symbol)
1245 (setf (class-name *unnamed2*) nil)
1246 (setf (find-class 'ctor-unnamed-literal-class2) nil)
1247 (with-test (:name (:ctor :unnamed-before))
1248   (assert (typep (ctor-unnamed-literal-class) *unnamed*)))
1249 (with-test (:name (:ctor :unnamed-after))
1250   (assert (typep (ctor-unnamed-literal-class2) *unnamed2*)))
1251 (with-test (:name (:ctor :unnamed-after/symbol))
1252   (assert (raises-error? (ctor-unnamed-literal-class2/symbol))))
1253 \f
1254 ;;; classes with slot types shouldn't break if the types don't name
1255 ;;; classes (bug #391)
1256 (defclass slot-type-superclass () ((slot :type fixnum)))
1257 (defclass slot-type-subclass (slot-type-superclass)
1258   ((slot :type (integer 1 5))))
1259 (let ((instance (make-instance 'slot-type-subclass)))
1260   (setf (slot-value instance 'slot) 3))
1261 \f
1262 ;;; ctors where there's a non-standard SHARED-INITIALIZE method and an
1263 ;;; initarg which isn't self-evaluating (kpreid on #lisp 2006-01-29)
1264 (defclass kpreid-enode ()
1265   ((slot :initarg not-a-keyword)))
1266 (defmethod shared-initialize ((o kpreid-enode) slots &key &allow-other-keys)
1267   (call-next-method))
1268 (defun make-kpreid-enode ()
1269   (make-instance 'kpreid-enode 'not-a-keyword 3))
1270 (with-test (:name (:ctor :non-keyword-initarg))
1271   (let ((x (make-kpreid-enode))
1272         (y (make-kpreid-enode)))
1273     (= (slot-value x 'slot) (slot-value y 'slot))))
1274 \f
1275 ;;; defining a class hierarchy shouldn't lead to spurious classoid
1276 ;;; errors on TYPEP questions (reported by Tim Moore on #lisp
1277 ;;; 2006-03-10)
1278 (defclass backwards-2 (backwards-1) (a b))
1279 (defclass backwards-3 (backwards-2) ())
1280 (defun typep-backwards-3 (x)
1281   (typep x 'backwards-3))
1282 (defclass backwards-1 () (a b))
1283 (assert (not (typep-backwards-3 1)))
1284 (assert (not (typep-backwards-3 (make-instance 'backwards-2))))
1285 (assert (typep-backwards-3 (make-instance 'backwards-3)))
1286 \f
1287 (defgeneric remove-method-1 (x)
1288   (:method ((x integer)) (1+ x)))
1289 (defgeneric remove-method-2 (x)
1290   (:method ((x integer)) (1- x)))
1291 (assert (eq #'remove-method-1
1292             (remove-method #'remove-method-1
1293                            (find-method #'remove-method-2
1294                                         nil
1295                                         (list (find-class 'integer))))))
1296 (assert (= (remove-method-1 3) 4))
1297 (assert (= (remove-method-2 3) 2))
1298
1299 ;;; ANSI doesn't require these restarts, but now that we have them we
1300 ;;; better test them too.
1301 (defclass slot-unbound-restart-test () ((x)))
1302 (let ((test (make-instance 'slot-unbound-restart-test)))
1303   (assert (not (slot-boundp test 'x)))
1304   (assert (= 42 (handler-bind ((unbound-slot (lambda (c) (use-value 42 c))))
1305                   (slot-value test 'x))))
1306   (assert (not (slot-boundp test 'x)))
1307   (assert (= 13 (handler-bind ((unbound-slot (lambda (c) (store-value 13 c))))
1308                   (slot-value test 'x))))
1309   (assert (= 13 (slot-value test 'x))))
1310
1311 ;;; Using class instances as specializers, reported by Pascal Costanza, ref CLHS 7.6.2
1312 (defclass class-as-specializer-test ()
1313    ())
1314 (eval `(defmethod class-as-specializer-test1 ((x ,(find-class 'class-as-specializer-test)))
1315           'foo))
1316 (assert (eq 'foo (class-as-specializer-test1 (make-instance 'class-as-specializer-test))))
1317 (funcall (compile nil `(lambda ()
1318                          (defmethod class-as-specializer-test2 ((x ,(find-class 'class-as-specializer-test)))
1319                            'bar))))
1320 (assert (eq 'bar (class-as-specializer-test2 (make-instance 'class-as-specializer-test))))
1321 \f
1322 ;;; CHANGE-CLASS and tricky allocation.
1323 (defclass foo-to-be-changed ()
1324   ((a :allocation :class :initform 1)))
1325 (defclass bar-to-be-changed (foo-to-be-changed) ())
1326 (defvar *bar-to-be-changed* (make-instance 'bar-to-be-changed))
1327 (defclass baz-to-be-changed ()
1328   ((a :allocation :instance :initform 2)))
1329 (change-class *bar-to-be-changed* 'baz-to-be-changed)
1330 (assert (= (slot-value *bar-to-be-changed* 'a) 1))
1331 \f
1332 ;;; proper name and class redefinition
1333 (defvar *to-be-renamed1* (defclass to-be-renamed1 () ()))
1334 (defvar *to-be-renamed2* (defclass to-be-renamed2 () ()))
1335 (setf (find-class 'to-be-renamed1) (find-class 'to-be-renamed2))
1336 (defvar *renamed1* (defclass to-be-renamed1 () ()))
1337 (assert (not (eq *to-be-renamed1* *to-be-renamed2*)))
1338 (assert (not (eq *to-be-renamed1* *renamed1*)))
1339 (assert (not (eq *to-be-renamed2* *renamed1*)))
1340 \f
1341 ;;; CLASS-NAME (and various other standardized generic functions) have
1342 ;;; their effective methods precomputed; in the process of rearranging
1343 ;;; (SETF FIND-CLASS) and FINALIZE-INHERITANCE, this broke.
1344 (defclass class-with-odd-class-name-method ()
1345   ((a :accessor class-name)))
1346 \f
1347 ;;; another case where precomputing (this time on PRINT-OBJECT) and
1348 ;;; lazily-finalized classes caused problems.  (report from James Y
1349 ;;; Knight sbcl-devel 20-07-2006)
1350
1351 (defclass base-print-object () ())
1352 ;;; this has the side-effect of finalizing BASE-PRINT-OBJECT, and
1353 ;;; additionally the second specializer (STREAM) changes the cache
1354 ;;; structure to require two keys, not just one.
1355 (defmethod print-object ((o base-print-object) (s stream))
1356   nil)
1357
1358 ;;; unfinalized as yet
1359 (defclass sub-print-object (base-print-object) ())
1360 ;;; the accessor causes an eager finalization
1361 (defclass subsub-print-object (sub-print-object)
1362   ((a :accessor a)))
1363
1364 ;;; triggers a discriminating function (and so cache) recomputation.
1365 ;;; The method on BASE-PRINT-OBJECT will cause the system to attempt
1366 ;;; to fill the cache for all subclasses of BASE-PRINT-OBJECT which
1367 ;;; have valid wrappers; however, in the course of doing so, the
1368 ;;; SUB-PRINT-OBJECT class gets finalized, which invalidates the
1369 ;;; SUBSUB-PRINT-OBJECT wrapper; if an invalid wrapper gets into a
1370 ;;; cache with more than one key, then failure ensues.
1371 (reinitialize-instance #'print-object)
1372 \f
1373 ;;; bug in long-form method combination: if there's an applicable
1374 ;;; method not part of any method group, we need to call
1375 ;;; INVALID-METHOD-ERROR.  (MC27 test case from Bruno Haible)
1376 (define-method-combination mc27 ()
1377   ((normal ())
1378    (ignored (:ignore :unused)))
1379   `(list 'result
1380     ,@(mapcar #'(lambda (method) `(call-method ,method)) normal)))
1381 (defgeneric test-mc27 (x)
1382   (:method-combination mc27)
1383   (:method :ignore ((x number)) (/ 0)))
1384 (assert (raises-error? (test-mc27 7)))
1385
1386 (define-method-combination mc27prime ()
1387   ((normal ())
1388    (ignored (:ignore)))
1389   `(list 'result ,@(mapcar (lambda (m) `(call-method ,m)) normal)))
1390 (defgeneric test-mc27prime (x)
1391   (:method-combination mc27prime)
1392   (:method :ignore ((x number)) (/ 0)))
1393 (assert (equal '(result) (test-mc27prime 3)))
1394 (assert (raises-error? (test-mc27 t))) ; still no-applicable-method
1395 \f
1396 ;;; more invalid wrappers.  This time for a long-standing bug in the
1397 ;;; compiler's expansion for TYPEP on various class-like things, with
1398 ;;; user-visible consequences.
1399 (defclass obsolete-again () ())
1400 (defvar *obsolete-again* (make-instance 'obsolete-again))
1401 (defvar *obsolete-again-hash* (sxhash *obsolete-again*))
1402 (make-instances-obsolete (find-class 'obsolete-again))
1403 (assert (not (streamp *obsolete-again*)))
1404 (make-instances-obsolete (find-class 'obsolete-again))
1405 (assert (= (sxhash *obsolete-again*) *obsolete-again-hash*))
1406 (compile (defun is-a-structure-object-p (x) (typep x 'structure-object)))
1407 (make-instances-obsolete (find-class 'obsolete-again))
1408 (assert (not (is-a-structure-object-p *obsolete-again*)))
1409 \f
1410 ;;; overeager optimization of slot-valuish things
1411 (defclass listoid ()
1412   ((caroid :initarg :caroid)
1413    (cdroid :initarg :cdroid :initform nil)))
1414 (defmethod lengthoid ((x listoid))
1415   (let ((result 0))
1416     (loop until (null x)
1417           do (incf result) (setq x (slot-value x 'cdroid)))
1418     result))
1419 (with-test (:name ((:setq :method-parameter) slot-value))
1420   (assert (= (lengthoid (make-instance 'listoid)) 1))
1421   (assert (= (lengthoid
1422               (make-instance 'listoid :cdroid
1423                              (make-instance 'listoid :cdroid
1424                                             (make-instance 'listoid))))
1425              3)))
1426
1427 \f
1428
1429 ;;;; Tests for argument parsing in fast-method-functions.
1430
1431 (defvar *foo* 0)
1432
1433 (eval-when (:compile-toplevel :load-toplevel :execute)
1434   (setf (symbol-value 'a) 'invalid))
1435
1436 (defmacro test1 (lambda-list values args &key declarations cnm)
1437   `(progn
1438      (fmakunbound 'll-method)
1439      (fmakunbound 'll-function)
1440      (defmethod ll-method ,lambda-list
1441        ,@declarations
1442        ,@(when cnm
1443            `((when nil (call-next-method))))
1444        (list ,@values))
1445      (defun ll-function ,lambda-list
1446        ,@declarations
1447        (list ,@values))
1448      (dotimes (i 2)
1449        (assert (equal (ll-method ,@args)
1450                       (ll-function ,@args))))))
1451
1452 (defmacro test (&rest args)
1453   `(progn
1454      (test1 ,@args :cnm nil)
1455      (test1 ,@args :cnm t)))
1456
1457 ;; Just plain arguments
1458
1459 (test (a) (a) (1))
1460 (test (a b c d e f g h i) (a b c d e f g h i) (1 2 3 4 5 6 7 8 9))
1461
1462 (test (*foo*) (*foo* (symbol-value '*foo*)) (1))
1463
1464 (test (a) (a (symbol-value 'a)) (1)
1465       :declarations ((declare (special a))))
1466
1467 ;; Optionals
1468
1469 (test (a &optional b c) (a b c) (1))
1470 (test (a &optional b c) (a b c) (1 2))
1471 (test (a &optional b c) (a b c) (1 2 3))
1472
1473 (test (a &optional (b 'b b-p) (c 'c c-p)) (a b c b-p c-p) (1))
1474 (test (a &optional (b 'b b-p) (c 'c c-p)) (a b c b-p c-p) (1 2))
1475 (test (a &optional (b 'b b-p) (c 'c c-p)) (a b c b-p c-p) (1 2 3))
1476
1477 (test (&optional *foo*) (*foo* (symbol-value '*foo*)) ())
1478 (test (&optional *foo*) (*foo* (symbol-value '*foo*)) (1))
1479
1480 (test (&optional (*foo* 'z foo-p)) (*foo* (symbol-value '*foo*) foo-p) ())
1481 (test (&optional (*foo* 'z foo-p)) (*foo* (symbol-value '*foo*) foo-p) (1))
1482
1483 (test (&optional a) (a (symbol-value 'a)) ()
1484       :declarations ((declare (special a))))
1485 (test (&optional a) (a (symbol-value 'a)) (1)
1486       :declarations ((declare (special a))))
1487
1488 (test (&optional (a 'z a-p)) (a (symbol-value 'a) a-p) ()
1489       :declarations ((declare (special a))))
1490 (test (&optional (a 'z a-p)) (a (symbol-value 'a) a-p) (1)
1491       :declarations ((declare (special a))))
1492
1493 (defparameter *count* 0)
1494
1495 (test (&optional (a (incf *count*)) (b (incf *count*)))
1496       (a b *count* (setf *count* 0))
1497       ())
1498
1499 ;; Keywords with some &RESTs thrown in
1500
1501 (dolist (args '((1)
1502                 (1 :b 2)
1503                 (1 :c 3)
1504                 (1 :b 2 :c 3)
1505                 (1 :c 3 :b 2)
1506                 (1 :c 3 :c 1 :b 2 :b 4)))
1507   (eval `(test (a &key b c) (a b c) ,args))
1508   (eval `(test (a &key (b 'b b-p) (c 'c c-p))
1509                (a b c b-p c-p)
1510                ,args))
1511   (eval `(test (a &rest rest &key (b 'b b-p) (c 'c c-p))
1512                (a b c b-p c-p rest)
1513                ,args))
1514   (eval `(test (a &rest *foo* &key (b 'b b-p) (c 'c c-p))
1515                (a b c b-p c-p *foo* (symbol-value '*foo*))
1516                ,args))
1517   (eval `(test (a &rest *foo* &key (b 'b b-p) (c 'c c-p))
1518                (a b c b-p c-p *foo* (symbol-value '*foo*))
1519                ,args
1520                :declarations ((declare (special b-p))))))
1521
1522 (dolist (args '(()
1523                 (:*foo* 1)
1524                 (:*foo* 1 :*foo* 2)))
1525   (eval `(test (&key *foo*) (*foo* (symbol-value '*foo*)) ,args))
1526   (eval `(test (&key (*foo* 'z foo-p)) (*foo* (symbol-value '*foo*) foo-p)
1527                ,args))
1528   (eval `(test (&key ((:*foo* a) 'z foo-p)) (a (symbol-value 'a) foo-p)
1529                ,args))
1530   (eval `(test (&key ((:*foo* a) 'z foo-p)) (a (symbol-value 'a) foo-p)
1531                ,args
1532                :declarations ((declare (special a))))))
1533
1534 (defparameter *count* 0)
1535
1536 (test (&key (a (incf *count*)) (b (incf *count*)))
1537       (a b *count* (setf *count* 0))
1538       ())
1539
1540 (test (&key a b &allow-other-keys) (a b) (:a 1 :b 2 :c 3))
1541
1542 (defmethod clim-style-lambda-list-test (a b &optional c d &key x y)
1543   (list a b c d x y))
1544
1545 (clim-style-lambda-list-test 1 2)
1546
1547 (setf *count* 0)
1548
1549 (test (&aux (a (incf *count*)) (b (incf *count*)))
1550       (a b *count* (setf *count* 0))
1551       ())
1552
1553 ;;;; long-form method combination with &rest in :arguments
1554 ;;;; (this had a bug what with fixed in 1.0.4.something)
1555 (define-method-combination long-form-with-&rest ()
1556   ((methods *))
1557   (:arguments x &rest others)
1558   `(progn
1559      ,@(mapcar (lambda (method)
1560                  `(call-method ,method))
1561                methods)
1562      (list ,x (length ,others))))
1563
1564 (defgeneric test-long-form-with-&rest (x &rest others)
1565   (:method-combination long-form-with-&rest))
1566
1567 (defmethod test-long-form-with-&rest (x &rest others)
1568   nil)
1569
1570 (assert (equal '(:foo 13)
1571                (apply #'test-long-form-with-&rest :foo (make-list 13))))
1572
1573 ;;;; slot-missing for non-standard classes on SLOT-VALUE
1574 ;;;;
1575 ;;;; FIXME: This is arguably not right, actually: CLHS seems to say
1576 ;;;; we should just signal an error at least for built-in classes, but
1577 ;;;; for a while we were hitting NO-APPLICABLE-METHOD, which is definitely
1578 ;;;; wrong -- so test this for now at least.
1579
1580 (defvar *magic-symbol* (gensym "MAGIC"))
1581
1582 (set *magic-symbol* 42)
1583
1584 (defmethod slot-missing (class instance (slot-name (eql *magic-symbol*)) op
1585                          &optional new)
1586   (if (eq 'setf op)
1587       (setf (symbol-value *magic-symbol*)  new)
1588       (symbol-value *magic-symbol*)))
1589
1590 (assert (eql 42 (slot-value (cons t t) *magic-symbol*)))
1591 (assert (eql 13 (setf (slot-value 123 *magic-symbol*) 13)))
1592 (assert (eql 13 (slot-value 'foobar *magic-symbol*)))
1593
1594 ;;;; Built-in structure and condition layouts should have NIL in
1595 ;;;; LAYOUT-FOR-STD-CLASS-P, and classes should have T.
1596
1597 (assert (not (sb-pcl::layout-for-std-class-p (sb-pcl::find-layout 'warning))))
1598 (assert (not (sb-pcl::layout-for-std-class-p (sb-pcl::find-layout 'hash-table))))
1599 (assert (eq t (sb-pcl::layout-for-std-class-p (sb-pcl::find-layout 'standard-object))))
1600
1601 ;;;; bug 402: PCL used to warn about non-standard declarations
1602 (declaim (declaration bug-402-d))
1603 (defgeneric bug-402-gf (x))
1604 (with-test (:name :bug-402)
1605   (handler-bind ((warning #'error))
1606     (eval '(defmethod bug-402-gf (x)
1607             (declare (bug-402-d x))
1608             x))))
1609
1610 ;;;; non-keyword :default-initargs + :before method on shared initialize
1611 ;;;; interacted badly with CTOR optimizations
1612 (defclass ctor-default-initarg-problem ()
1613   ((slot :initarg slotto))
1614   (:default-initargs slotto 123))
1615 (defmethod shared-initialize :before ((instance ctor-default-initarg-problem) slot-names &rest initargs)
1616   (format t "~&Rock on: ~A~%" initargs))
1617 (defun provoke-ctor-default-initarg-problem ()
1618   (make-instance 'ctor-default-initarg-problem))
1619 (handler-bind ((warning #'error))
1620   (assert (= 123 (slot-value (provoke-ctor-default-initarg-problem) 'slot))))
1621
1622 ;;;; discriminating net on streams used to generate code deletion notes on
1623 ;;;; first call
1624 (defgeneric stream-fd (stream direction))
1625 (defmethod stream-fd ((stream sb-sys:fd-stream) direction)
1626   (declare (ignore direction))
1627   (sb-sys:fd-stream-fd stream))
1628 (defmethod stream-fd ((stream synonym-stream) direction)
1629   (stream-fd (symbol-value (synonym-stream-symbol stream)) direction))
1630 (defmethod stream-fd ((stream two-way-stream) direction)
1631   (ecase direction
1632     (:input
1633      (stream-fd
1634       (two-way-stream-input-stream stream) direction))
1635     (:output
1636      (stream-fd
1637       (two-way-stream-output-stream stream) direction))))
1638 (with-test (:name (:discriminating-name :code-deletion-note))
1639   (handler-bind ((compiler-note #'error))
1640     (stream-fd sb-sys:*stdin* :output)
1641     (stream-fd sb-sys:*stdin* :output)))
1642
1643 (with-test (:name :bug-380)
1644   (defclass bug-380 ()
1645     ((slot :accessor bug380-slot)))
1646   (fmakunbound 'foo-slot)
1647   (defgeneric foo-slot (x y z))
1648   (defclass foo ()
1649     ((slot :accessor foo-slot-value))))
1650
1651 ;;; SET and (SETF SYMBOL-VALUE) used to confuse permuation vector
1652 ;;; optimizations
1653 (defclass fih ()
1654   ((x :initform :fih)))
1655 (defclass fah ()
1656   ((x :initform :fah)))
1657 (declaim (special *fih*))
1658 (defmethod fihfah ((*fih* fih))
1659   (set '*fih* (make-instance 'fah))
1660   (list (slot-value *fih* 'x)
1661         (eval '(slot-value *fih* 'x))))
1662 (defmethod fihfah ((fah fah))
1663   (declare (special fah))
1664   (set 'fah (make-instance 'fih))
1665   (list (slot-value fah 'x)
1666         (eval '(slot-value fah 'x))))
1667 (with-test (:name :set-of-a-method-specializer)
1668   (assert (equal '(:fah :fah) (fihfah (make-instance 'fih))))
1669   (assert (equal '(:fih :fih) (fihfah (make-instance 'fah)))))
1670
1671 (defmethod no-implicit-declarations-for-local-specials ((faax double-float))
1672   (declare (special faax))
1673   (set 'faax (when (< faax 0) (- faax)))
1674   faax)
1675 (with-test (:name :no-implicit-declarations-for-local-specials)
1676   (assert (not (no-implicit-declarations-for-local-specials 1.0d0))))
1677
1678 (defstruct bug-357-a
1679   slot1
1680   (slot2 t)
1681   (slot3 (coerce pi 'single-float) :type single-float))
1682 (defclass bug-357-b (bug-357-a)
1683   ((slot2 :initform 't2)
1684    (slot4 :initform -44)
1685    (slot5)
1686    (slot6 :initform t)
1687    (slot7 :initform (floor (* pi pi)))
1688    (slot8 :initform 88))
1689   (:metaclass structure-class))
1690 (defstruct (bug-357-c (:include bug-357-b (slot8 -88) (slot5 :ok)))
1691   slot9
1692   (slot10 t)
1693   (slot11 (floor (exp 3))))
1694 (with-test (:name :bug-357)
1695   (flet ((slots (x)
1696            (list (bug-357-c-slot1 x)
1697                  (bug-357-c-slot2 x)
1698                  (bug-357-c-slot3 x)
1699                  (bug-357-c-slot4 x)
1700                  (bug-357-c-slot5 x)
1701                  (bug-357-c-slot6 x)
1702                  (bug-357-c-slot7 x)
1703                  (bug-357-c-slot8 x)
1704                  (bug-357-c-slot9 x)
1705                  (bug-357-c-slot10 x)
1706                  (bug-357-c-slot11 x))))
1707     (let ((base (slots (make-bug-357-c))))
1708       (assert (equal base (slots (make-instance 'bug-357-c))))
1709       (assert (equal base '(nil t2 3.1415927 -44 :ok t 9 -88 nil t 20))))))
1710
1711 (defclass class-slot-shared-initialize ()
1712   ((a :allocation :class :initform :ok)))
1713 (with-test (:name :class-slot-shared-initialize)
1714   (let ((x (make-instance 'class-slot-shared-initialize)))
1715     (assert (eq :ok (slot-value x 'a)))
1716     (slot-makunbound x 'a)
1717     (assert (not (slot-boundp x 'a)))
1718     (shared-initialize x '(a))
1719     (assert (slot-boundp x 'a))
1720     (assert (eq :ok (slot-value x 'a)))))
1721
1722 (declaim (ftype (function (t t t) (values single-float &optional))
1723                 i-dont-want-to-be-clobbered-1
1724                 i-dont-want-to-be-clobbered-2))
1725 (defgeneric i-dont-want-to-be-clobbered-1 (t t t))
1726 (defmethod i-dont-want-to-be-clobbered-2 ((x cons) y z)
1727   y)
1728 (defun i-cause-an-gf-info-update ()
1729   (i-dont-want-to-be-clobbered-2 t t t))
1730 (with-test (:name :defgeneric-should-clobber-ftype)
1731   ;; (because it doesn't check the argument or result types)
1732   (assert (equal '(function (t t t) *)
1733                  (sb-kernel:type-specifier
1734                   (sb-int:info :function
1735                                :type 'i-dont-want-to-be-clobbered-1))))
1736   (assert (equal '(function (t t t) *)
1737                  (sb-kernel:type-specifier
1738                   (sb-int:info :function
1739                                :type 'i-dont-want-to-be-clobbered-2))))
1740   (assert (eq :defined-method
1741               (sb-int:info :function
1742                            :where-from 'i-dont-want-to-be-clobbered-1)))
1743   (assert (eq :defined-method
1744               (sb-int:info :function
1745                            :where-from 'i-dont-want-to-be-clobbered-2))))
1746 \f
1747 ;;;; success