1 ;;;; This file contains the optimization machinery for make-instance.
3 ;;;; This software is part of the SBCL system. See the README file for
6 ;;;; This software is derived from software originally released by
7 ;;;; Gerd Moellmann. Copyright and release statements follow. Later
8 ;;;; modifications to the software are in the public domain and are
9 ;;;; provided with absolutely no warranty. See the COPYING and
10 ;;;; CREDITS files for more information.
12 ;;; Copyright (C) 2002 Gerd Moellmann <gerd.moellmann@t-online.de>
13 ;;; All rights reserved.
15 ;;; Redistribution and use in source and binary forms, with or without
16 ;;; modification, are permitted provided that the following conditions
19 ;;; 1. Redistributions of source code must retain the above copyright
20 ;;; notice, this list of conditions and the following disclaimer.
21 ;;; 2. Redistributions in binary form must reproduce the above copyright
22 ;;; notice, this list of conditions and the following disclaimer in the
23 ;;; documentation and/or other materials provided with the distribution.
24 ;;; 3. The name of the author may not be used to endorse or promote
25 ;;; products derived from this software without specific prior written
28 ;;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
29 ;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
30 ;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 ;;; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
32 ;;; LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 ;;; CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
34 ;;; OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
35 ;;; BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
36 ;;; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 ;;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
38 ;;; USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
45 ;;; Compiler macro for MAKE-INSTANCE, and load-time generation of
46 ;;; optimized instance constructor functions.
48 ;;; ********************
49 ;;; Entry Points ******
50 ;;; ********************
52 ;;; UPDATE-CTORS must be called when methods are added/removed,
53 ;;; classes are changed, etc., which affect instance creation.
55 ;;; PRECOMPILE-CTORS can be called to precompile constructor functions
56 ;;; for classes whose definitions are known at the time the function
61 ;;; ******************
63 ;;; ******************
65 (defun quote-plist-keys (plist)
66 (loop for (key . more) on plist by #'cddr
68 (error "Not a property list: ~S" plist)
71 and collect (car more)))
73 (defun plist-keys (plist &key test)
74 (loop for (key . more) on plist by #'cddr
76 (error "Not a property list: ~S" plist)
77 else if (or (null test) (funcall test key))
80 (defun plist-values (plist &key test)
81 (loop for (key . more) on plist by #'cddr
83 (error "Not a property list: ~S" plist)
84 else if (or (null test) (funcall test (car more)))
87 (defun constant-symbol-p (form)
89 (let ((constant (eval form)))
90 (and (symbolp constant)
91 (not (null (symbol-package constant)))))))
93 ;;; somewhat akin to DEFAULT-INITARGS (SLOT-CLASS T T), but just
94 ;;; collecting the defaulted initargs for the call.
95 (defun ctor-default-initkeys (supplied-initargs class-default-initargs)
96 (loop for (key nil) in class-default-initargs
97 when (eq (getf supplied-initargs key '.not-there.) '.not-there.)
100 ;;; *****************
102 ;;; *****************
104 ;;; Ctors are funcallable instances whose initial function is a
105 ;;; function computing an optimized constructor function when called.
106 ;;; When the optimized function is computed, the function of the
107 ;;; funcallable instance is set to it.
109 (!defstruct-with-alternate-metaclass ctor
110 :slot-names (function-name class-name class initargs)
111 :boa-constructor %make-ctor
112 :superclass-name pcl-funcallable-instance
113 :metaclass-name random-pcl-classoid
114 :metaclass-constructor make-random-pcl-classoid
115 :dd-type funcallable-structure
116 :runtime-type-checks-p nil)
118 ;;; List of all defined ctors.
120 (defvar *all-ctors* ())
122 (defun make-ctor-parameter-list (ctor)
123 (plist-values (ctor-initargs ctor) :test (complement #'constantp)))
125 ;;; Reset CTOR to use a default function that will compute an
126 ;;; optimized constructor function when called.
127 (defun install-initial-constructor (ctor &key force-p)
128 (when (or force-p (ctor-class ctor))
129 (setf (ctor-class ctor) nil)
130 (setf (funcallable-instance-fun ctor)
131 #'(instance-lambda (&rest args)
132 (install-optimized-constructor ctor)
134 (setf (%funcallable-instance-info ctor 1)
135 (ctor-function-name ctor))))
137 ;;; Keep this a separate function for testing.
138 (defun make-ctor-function-name (class-name initargs)
139 (let ((*package* *pcl-package*)
140 (*print-case* :upcase)
143 (format-symbol *pcl-package* "CTOR ~S::~S ~S ~S"
144 (package-name (symbol-package class-name))
145 (symbol-name class-name)
146 (plist-keys initargs)
147 (plist-values initargs :test #'constantp))))
149 ;;; Keep this a separate function for testing.
150 (defun ensure-ctor (function-name class-name initargs)
151 (unless (fboundp function-name)
152 (make-ctor function-name class-name initargs)))
154 ;;; Keep this a separate function for testing.
155 (defun make-ctor (function-name class-name initargs)
156 (without-package-locks ; for (setf symbol-function)
157 (let ((ctor (%make-ctor function-name class-name nil initargs)))
158 (push ctor *all-ctors*)
159 (setf (symbol-function function-name) ctor)
160 (install-initial-constructor ctor :force-p t)
164 ;;; ***********************************************
165 ;;; Compile-Time Expansion of MAKE-INSTANCE *******
166 ;;; ***********************************************
168 (define-compiler-macro make-instance (&whole form &rest args)
169 (declare (ignore args))
170 (or (make-instance->constructor-call form)
173 (defun make-instance->constructor-call (form)
174 (destructuring-bind (fn class-name &rest args) form
175 (declare (ignore fn))
177 ;; Return the name of parameter number I of a constructor
180 (let ((ps #(.p0. .p1. .p2. .p3. .p4. .p5.)))
181 (if (array-in-bounds-p ps i)
183 (format-symbol *pcl-package* ".P~D." i))))
184 ;; Check if CLASS-NAME is a constant symbol. Give up if
187 (unless (and class-name (constant-symbol-p class-name))
188 (return-from make-instance->constructor-call nil)))
189 ;; Check if ARGS are suitable for an optimized constructor.
190 ;; Return NIL from the outer function if not.
192 (loop for (key . more) on args by #'cddr do
193 (when (or (null more)
194 (not (constant-symbol-p key))
195 (eq :allow-other-keys (eval key)))
196 (return-from make-instance->constructor-call nil)))))
199 ;; Collect a plist of initargs and constant values/parameter names
200 ;; in INITARGS. Collect non-constant initialization forms in
202 (multiple-value-bind (initargs value-forms)
203 (loop for (key value) on args by #'cddr and i from 0
204 collect (eval key) into initargs
206 collect value into initargs
208 collect (parameter-name i) into initargs
209 and collect value into value-forms
211 (return (values initargs value-forms)))
212 (let* ((class-name (eval class-name))
213 (function-name (make-ctor-function-name class-name initargs)))
214 ;; Prevent compiler warnings for calling the ctor.
215 (proclaim-as-fun-name function-name)
216 (note-name-defined function-name :function)
217 (when (eq (info :function :where-from function-name) :assumed)
218 (setf (info :function :where-from function-name) :defined)
219 (when (info :function :assumed-type function-name)
220 (setf (info :function :assumed-type function-name) nil)))
221 ;; Return code constructing a ctor at load time, which, when
222 ;; called, will set its funcallable instance function to an
223 ;; optimized constructor function.
225 (declare (disable-package-locks ,function-name))
226 (let ((.x. (load-time-value
227 (ensure-ctor ',function-name ',class-name ',initargs))))
228 (declare (ignore .x.))
229 ;; ??? check if this is worth it.
231 (ftype (or (function ,(make-list (length value-forms)
234 (function (&rest t) t))
236 (,function-name ,@value-forms))))))))
239 ;;; **************************************************
240 ;;; Load-Time Constructor Function Generation *******
241 ;;; **************************************************
243 ;;; The system-supplied primary INITIALIZE-INSTANCE and
244 ;;; SHARED-INITIALIZE methods. One cannot initialize these variables
245 ;;; to the right values here because said functions don't exist yet
246 ;;; when this file is first loaded.
247 (defvar *the-system-ii-method* nil)
248 (defvar *the-system-si-method* nil)
250 (defun install-optimized-constructor (ctor)
251 (let ((class (find-class (ctor-class-name ctor))))
252 (unless (class-finalized-p class)
253 (finalize-inheritance class))
254 (setf (ctor-class ctor) class)
255 (pushnew ctor (plist-value class 'ctors))
256 (setf (funcallable-instance-fun ctor)
257 ;; KLUDGE: Gerd here has the equivalent of (COMPILE NIL
258 ;; (CONSTRUCTOR-FUNCTION-FORM)), but SBCL's COMPILE doesn't
259 ;; deal with INSTANCE-LAMBDA expressions, only with LAMBDA
260 ;; expressions. The below should be equivalent, since we
261 ;; have a compiler-only implementation.
263 ;; (except maybe for optimization qualities? -- CSR,
265 (eval `(function ,(constructor-function-form ctor))))))
267 (defun constructor-function-form (ctor)
268 (let* ((class (ctor-class ctor))
269 (proto (class-prototype class))
270 (make-instance-methods
271 (compute-applicable-methods #'make-instance (list class)))
272 (allocate-instance-methods
273 (compute-applicable-methods #'allocate-instance (list class)))
274 ;; I stared at this in confusion for a while, thinking
275 ;; carefully about the possibility of the class prototype not
276 ;; being of sufficient discrimiating power, given the
277 ;; possibility of EQL-specialized methods on
278 ;; INITIALIZE-INSTANCE or SHARED-INITIALIZE. However, given
279 ;; that this is a constructor optimization, the user doesn't
280 ;; yet have the instance to create a method with such an EQL
283 ;; There remains the (theoretical) possibility of someone
284 ;; coming along with code of the form
286 ;; (defmethod initialize-instance :before ((o foo) ...)
287 ;; (eval `(defmethod shared-initialize :before ((o foo) ...) ...)))
289 ;; but probably we can afford not to worry about this too
290 ;; much for now. -- CSR, 2004-07-12
292 (compute-applicable-methods #'initialize-instance (list proto)))
294 (compute-applicable-methods #'shared-initialize (list proto t)))
295 (setf-svuc-slots-methods
296 (loop for slot in (class-slots class)
297 collect (compute-applicable-methods
298 #'(setf slot-value-using-class)
299 (list nil class proto slot))))
301 (loop for slot in (class-slots class)
302 collect (compute-applicable-methods
303 #'slot-boundp-using-class
304 (list class proto slot)))))
305 ;; Cannot initialize these variables earlier because the generic
306 ;; functions don't exist when PCL is built.
307 (when (null *the-system-si-method*)
308 (setq *the-system-si-method*
309 (find-method #'shared-initialize
310 () (list *the-class-slot-object* *the-class-t*)))
311 (setq *the-system-ii-method*
312 (find-method #'initialize-instance
313 () (list *the-class-slot-object*))))
314 ;; Note that when there are user-defined applicable methods on
315 ;; MAKE-INSTANCE and/or ALLOCATE-INSTANCE, these will show up
316 ;; together with the system-defined ones in what
317 ;; COMPUTE-APPLICABLE-METHODS returns.
318 (or (and (not (structure-class-p class))
319 (not (condition-class-p class))
320 (null (cdr make-instance-methods))
321 (null (cdr allocate-instance-methods))
323 (member (slot-definition-allocation x)
324 '(:instance :class)))
326 (null (check-initargs-1
329 (ctor-default-initkeys
330 (ctor-initargs ctor) (class-default-initargs class))
331 (plist-keys (ctor-initargs ctor)))
332 (append ii-methods si-methods) nil nil))
333 (not (around-or-nonstandard-primary-method-p
334 ii-methods *the-system-ii-method*))
335 (not (around-or-nonstandard-primary-method-p
336 si-methods *the-system-si-method*))
337 ;; the instance structure protocol goes through
338 ;; slot-value(-using-class) and friends (actually just
339 ;; (SETF SLOT-VALUE-USING-CLASS) and
340 ;; SLOT-BOUNDP-USING-CLASS), so if there are non-standard
341 ;; applicable methods we can't shortcircuit them.
342 (every (lambda (x) (= (length x) 1)) setf-svuc-slots-methods)
343 (every (lambda (x) (= (length x) 1)) sbuc-slots-methods)
344 (optimizing-generator ctor ii-methods si-methods))
345 (fallback-generator ctor ii-methods si-methods))))
347 (defun around-or-nonstandard-primary-method-p
348 (methods &optional standard-method)
349 (loop with primary-checked-p = nil
350 for method in methods
351 as qualifiers = (method-qualifiers method)
352 when (or (eq :around (car qualifiers))
353 (and (null qualifiers)
354 (not primary-checked-p)
355 (not (null standard-method))
356 (not (eq standard-method method))))
358 when (null qualifiers) do
359 (setq primary-checked-p t)))
361 (defun fallback-generator (ctor ii-methods si-methods)
362 (declare (ignore ii-methods si-methods))
363 `(instance-lambda ,(make-ctor-parameter-list ctor)
364 ;; The CTOR MAKE-INSTANCE optimization only kicks in when the
365 ;; first argument to MAKE-INSTANCE is a constant symbol: by
366 ;; calling it with a class, as here, we inhibit the optimization,
367 ;; so removing the possibility of endless recursion. -- CSR,
369 (make-instance ,(ctor-class ctor) ,@(ctor-initargs ctor))))
371 (defun optimizing-generator (ctor ii-methods si-methods)
372 (multiple-value-bind (body before-method-p)
373 (fake-initialization-emf ctor ii-methods si-methods)
374 `(instance-lambda ,(make-ctor-parameter-list ctor)
375 (declare #.*optimize-speed*)
376 ,(wrap-in-allocate-forms ctor body before-method-p))))
378 ;;; Return a form wrapped around BODY that allocates an instance
379 ;;; constructed by CTOR. BEFORE-METHOD-P set means we have to run
380 ;;; before-methods, in which case we initialize instance slots to
381 ;;; +SLOT-UNBOUND+. The resulting form binds the local variables
382 ;;; .INSTANCE. to the instance, and .SLOTS. to the instance's slot
383 ;;; vector around BODY.
384 (defun wrap-in-allocate-forms (ctor body before-method-p)
385 (let* ((class (ctor-class ctor))
386 (wrapper (class-wrapper class))
387 (allocation-function (raw-instance-allocator class))
388 (slots-fetcher (slots-fetcher class)))
389 (if (eq allocation-function 'allocate-standard-instance)
390 `(let ((.instance. (%make-standard-instance nil
391 (get-instance-hash-code)))
393 ,(layout-length wrapper)
394 ,@(when before-method-p
395 '(:initial-element +slot-unbound+)))))
396 (setf (std-instance-wrapper .instance.) ,wrapper)
397 (setf (std-instance-slots .instance.) .slots.)
400 `(let* ((.instance. (,allocation-function ,wrapper))
401 (.slots. (,slots-fetcher .instance.)))
405 ;;; Return a form for invoking METHOD with arguments from ARGS. As
406 ;;; can be seen in METHOD-FUNCTION-FROM-FAST-FUNCTION, method
407 ;;; functions look like (LAMBDA (ARGS NEXT-METHODS) ...). We could
408 ;;; call fast method functions directly here, but benchmarks show that
409 ;;; there's no speed to gain, so lets avoid the hair here.
410 (defmacro invoke-method (method args)
411 `(funcall ,(method-function method) ,args ()))
413 ;;; Return a form that is sort of an effective method comprising all
414 ;;; calls to INITIALIZE-INSTANCE and SHARED-INITIALIZE that would
415 ;;; normally have taken place when calling MAKE-INSTANCE.
416 (defun fake-initialization-emf (ctor ii-methods si-methods)
417 (multiple-value-bind (ii-around ii-before ii-primary ii-after)
418 (standard-sort-methods ii-methods)
419 (declare (ignore ii-primary))
420 (multiple-value-bind (si-around si-before si-primary si-after)
421 (standard-sort-methods si-methods)
422 (declare (ignore si-primary))
423 (aver (and (null ii-around) (null si-around)))
424 (let ((initargs (ctor-initargs ctor))
425 (slot-inits (slot-init-forms ctor (or ii-before si-before))))
427 `(let (,@(when (or ii-before ii-after)
429 (list .instance. ,@(quote-plist-keys initargs)))))
430 ,@(when (or si-before si-after)
432 (list .instance. t ,@(quote-plist-keys initargs))))))
433 ,@(loop for method in ii-before
434 collect `(invoke-method ,method .ii-args.))
435 ,@(loop for method in si-before
436 collect `(invoke-method ,method .si-args.))
438 ,@(loop for method in si-after
439 collect `(invoke-method ,method .si-args.))
440 ,@(loop for method in ii-after
441 collect `(invoke-method ,method .ii-args.)))
442 (or ii-before si-before))))))
444 ;;; Return four values from APPLICABLE-METHODS: around methods, before
445 ;;; methods, the applicable primary method, and applicable after
446 ;;; methods. Before and after methods are sorted in the order they
448 (defun standard-sort-methods (applicable-methods)
449 (loop for method in applicable-methods
450 as qualifiers = (method-qualifiers method)
452 collect method into primary
453 else if (eq :around (car qualifiers))
454 collect method into around
455 else if (eq :after (car qualifiers))
456 collect method into after
457 else if (eq :before (car qualifiers))
458 collect method into before
460 (return (values around before (first primary) (reverse after)))))
462 ;;; Return a form initializing instance and class slots of an object
463 ;;; costructed by CTOR. The variable .SLOTS. is assumed to bound to
464 ;;; the instance's slot vector. BEFORE-METHOD-P T means
465 ;;; before-methods will be called, which means that 1) other code will
466 ;;; initialize instance slots to +SLOT-UNBOUND+ before the
467 ;;; before-methods are run, and that we have to check if these
468 ;;; before-methods have set slots.
469 (defun slot-init-forms (ctor before-method-p)
470 (let* ((class (ctor-class ctor))
471 (initargs (ctor-initargs ctor))
472 (initkeys (plist-keys initargs))
474 (make-array (layout-length (class-wrapper class))
475 :initial-element nil))
478 (default-initargs (class-default-initargs class))
480 (compute-initarg-locations
481 class (append initkeys (mapcar #'car default-initargs)))))
482 (labels ((initarg-locations (initarg)
483 (cdr (assoc initarg initarg-locations :test #'eq)))
484 (initializedp (location)
487 (assoc location class-inits :test #'eq))
489 (not (null (aref slot-vector location))))
490 (t (bug "Weird location in ~S" 'slot-init-forms))))
491 (class-init (location type val)
492 (aver (consp location))
493 (unless (initializedp location)
494 (push (list location type val) class-inits)))
495 (instance-init (location type val)
496 (aver (integerp location))
497 (unless (initializedp location)
498 (setf (aref slot-vector location) (list type val))))
499 (default-init-var-name (i)
500 (let ((ps #(.d0. .d1. .d2. .d3. .d4. .d5.)))
501 (if (array-in-bounds-p ps i)
503 (format-symbol *pcl-package* ".D~D." i)))))
504 ;; Loop over supplied initargs and values and record which
505 ;; instance and class slots they initialize.
506 (loop for (key value) on initargs by #'cddr
507 as locations = (initarg-locations key) do
508 (if (constantp value)
509 (dolist (location locations)
511 (class-init location 'constant value)
512 (instance-init location 'constant value)))
513 (dolist (location locations)
515 (class-init location 'param value)
516 (instance-init location 'param value)))))
517 ;; Loop over default initargs of the class, recording
518 ;; initializations of slots that have not been initialized
519 ;; above. Default initargs which are not in the supplied
520 ;; initargs are treated as if they were appended to supplied
521 ;; initargs, that is, their values must be evaluated even
522 ;; if not actually used for initializing a slot.
523 (loop for (key initfn initform) in default-initargs and i from 0
524 unless (member key initkeys :test #'eq) do
525 (let* ((type (if (constantp initform) 'constant 'var))
526 (init (if (eq type 'var) initfn initform)))
528 (let ((init-var (default-init-var-name i)))
530 (push (cons init-var initfn) default-inits)))
531 (dolist (location (initarg-locations key))
533 (class-init location type init)
534 (instance-init location type init)))))
535 ;; Loop over all slots of the class, filling in the rest from
537 (loop for slotd in (class-slots class)
538 as location = (slot-definition-location slotd)
539 as allocation = (slot-definition-allocation slotd)
540 as initfn = (slot-definition-initfunction slotd)
541 as initform = (slot-definition-initform slotd) do
542 (unless (or (eq allocation :class)
544 (initializedp location))
545 (if (constantp initform)
546 (instance-init location 'initform initform)
547 (instance-init location 'initform/initfn initfn))))
548 ;; Generate the forms for initializing instance and class slots.
549 (let ((instance-init-forms
550 (loop for slot-entry across slot-vector and i from 0
551 as (type value) = slot-entry collect
554 (unless before-method-p
555 `(setf (clos-slots-ref .slots. ,i) +slot-unbound+)))
557 `(setf (clos-slots-ref .slots. ,i) ,value))
559 `(setf (clos-slots-ref .slots. ,i) (funcall ,value)))
562 `(when (eq (clos-slots-ref .slots. ,i)
564 (setf (clos-slots-ref .slots. ,i)
566 `(setf (clos-slots-ref .slots. ,i)
570 `(when (eq (clos-slots-ref .slots. ,i)
572 (setf (clos-slots-ref .slots. ,i)
574 `(setf (clos-slots-ref .slots. ,i)
577 `(setf (clos-slots-ref .slots. ,i) ',(eval value))))))
579 (loop for (location type value) in class-inits collect
580 `(setf (cdr ',location)
582 (constant `',(eval value))
583 ((param var) `,value)
584 (initfn `(funcall ,value)))))))
585 (multiple-value-bind (vars bindings)
586 (loop for (var . initfn) in (nreverse default-inits)
587 collect var into vars
588 collect `(,var (funcall ,initfn)) into bindings
589 finally (return (values vars bindings)))
591 (declare (ignorable ,@vars))
592 ,@(delete nil instance-init-forms)
593 ,@class-init-forms))))))
595 ;;; Return an alist of lists (KEY LOCATION ...) telling, for each
596 ;;; key in INITKEYS, which locations the initarg initializes.
597 ;;; CLASS is the class of the instance being initialized.
598 (defun compute-initarg-locations (class initkeys)
599 (loop with slots = (class-slots class)
600 for key in initkeys collect
601 (loop for slot in slots
602 if (memq key (slot-definition-initargs slot))
603 collect (slot-definition-location slot) into locations
605 collect slot into remaining-slots
607 (setq slots remaining-slots)
608 (return (cons key locations)))))
611 ;;; *******************************
612 ;;; External Entry Points ********
613 ;;; *******************************
615 (defun update-ctors (reason &key class name generic-function method)
616 (labels ((reset (class &optional ri-cache-p (ctorsp t))
618 (dolist (ctor (plist-value class 'ctors))
619 (install-initial-constructor ctor)))
621 (setf (plist-value class 'ri-initargs) ()))
622 (dolist (subclass (class-direct-subclasses class))
623 (reset subclass ri-cache-p ctorsp))))
625 ;; CLASS must have been specified.
626 (finalize-inheritance
628 ;; NAME must have been specified.
630 (loop for ctor in *all-ctors*
631 when (eq (ctor-class-name ctor) name) do
632 (when (ctor-class ctor)
633 (reset (ctor-class ctor)))
635 ;; GENERIC-FUNCTION and METHOD must have been specified.
636 ((add-method remove-method)
637 (flet ((class-of-1st-method-param (method)
638 (type-class (first (method-specializers method)))))
639 (case (generic-function-name generic-function)
640 ((make-instance allocate-instance
641 initialize-instance shared-initialize)
642 (reset (class-of-1st-method-param method) t t))
643 ((reinitialize-instance)
644 (reset (class-of-1st-method-param method) t nil))
645 (t (when (or (eq (generic-function-name generic-function)
646 'slot-boundp-using-class)
647 (equal (generic-function-name generic-function)
648 '(setf slot-value-using-class)))
649 ;; this looks awfully expensive, but given that one
650 ;; can specialize on the SLOTD argument, nothing is
651 ;; safe. -- CSR, 2004-07-12
652 (reset (find-class 'standard-object))))))))))
654 (defun precompile-ctors ()
655 (dolist (ctor *all-ctors*)
656 (when (null (ctor-class ctor))
657 (let ((class (find-class (ctor-class-name ctor) nil)))
658 (when (and class (class-finalized-p class))
659 (install-optimized-constructor ctor))))))
661 (defun check-ri-initargs (instance initargs)
662 (let* ((class (class-of instance))
663 (keys (plist-keys initargs))
664 (cached (assoc keys (plist-value class 'ri-initargs)
670 ;; FIXME: give CHECK-INITARGS-1 and friends a
671 ;; more mnemonic name and (possibly) a nicer,
672 ;; more orthogonal interface.
675 (list (list* 'reinitialize-instance instance initargs)
676 (list* 'shared-initialize instance nil initargs))
678 (setf (plist-value class 'ri-initargs)
679 (acons keys invalid cached))
682 (error 'initarg-error :class class :initargs invalid-keys))))