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)))))))
98 ;;; Ctors are funcallable instances whose initial function is a
99 ;;; function computing an optimized constructor function when called.
100 ;;; When the optimized function is computed, the function of the
101 ;;; funcallable instance is set to it.
103 (!defstruct-with-alternate-metaclass ctor
104 :slot-names (function-name class-name class initargs)
105 :boa-constructor %make-ctor
106 :superclass-name pcl-funcallable-instance
107 :metaclass-name random-pcl-classoid
108 :metaclass-constructor make-random-pcl-classoid
109 :dd-type funcallable-structure
110 :runtime-type-checks-p nil)
112 ;;; List of all defined ctors.
114 (defvar *all-ctors* ())
116 (defun make-ctor-parameter-list (ctor)
117 (plist-values (ctor-initargs ctor) :test (complement #'constantp)))
119 ;;; Reset CTOR to use a default function that will compute an
120 ;;; optimized constructor function when called.
121 (defun install-initial-constructor (ctor &key force-p)
122 (when (or force-p (ctor-class ctor))
123 (setf (ctor-class ctor) nil)
124 (setf (funcallable-instance-fun ctor)
125 #'(instance-lambda (&rest args)
126 (install-optimized-constructor ctor)
128 (setf (%funcallable-instance-info ctor 1)
129 (ctor-function-name ctor))))
131 ;;; Keep this a separate function for testing.
132 (defun make-ctor-function-name (class-name initargs)
133 (let ((*package* *pcl-package*)
134 (*print-case* :upcase)
137 (format-symbol *pcl-package* "CTOR ~S::~S ~S ~S"
138 (package-name (symbol-package class-name))
139 (symbol-name class-name)
140 (plist-keys initargs)
141 (plist-values initargs :test #'constantp))))
143 ;;; Keep this a separate function for testing.
144 (defun ensure-ctor (function-name class-name initargs)
145 (unless (fboundp function-name)
146 (make-ctor function-name class-name initargs)))
148 ;;; Keep this a separate function for testing.
149 (defun make-ctor (function-name class-name initargs)
150 (without-package-locks ; for (setf symbol-function)
151 (let ((ctor (%make-ctor function-name class-name nil initargs)))
152 (push ctor *all-ctors*)
153 (setf (symbol-function function-name) ctor)
154 (install-initial-constructor ctor :force-p t)
158 ;;; ***********************************************
159 ;;; Compile-Time Expansion of MAKE-INSTANCE *******
160 ;;; ***********************************************
162 (define-compiler-macro make-instance (&whole form &rest args)
163 (declare (ignore args))
164 (or (make-instance->constructor-call form)
167 (defun make-instance->constructor-call (form)
168 (destructuring-bind (fn class-name &rest args) form
169 (declare (ignore fn))
171 ;; Return the name of parameter number I of a constructor
174 (let ((ps #(.p0. .p1. .p2. .p3. .p4. .p5.)))
175 (if (array-in-bounds-p ps i)
177 (format-symbol *pcl-package* ".P~D." i))))
178 ;; Check if CLASS-NAME is a constant symbol. Give up if
181 (unless (and class-name (constant-symbol-p class-name))
182 (return-from make-instance->constructor-call nil)))
183 ;; Check if ARGS are suitable for an optimized constructor.
184 ;; Return NIL from the outer function if not.
186 (loop for (key . more) on args by #'cddr do
187 (when (or (null more)
188 (not (constant-symbol-p key))
189 (eq :allow-other-keys (eval key)))
190 (return-from make-instance->constructor-call nil)))))
193 ;; Collect a plist of initargs and constant values/parameter names
194 ;; in INITARGS. Collect non-constant initialization forms in
196 (multiple-value-bind (initargs value-forms)
197 (loop for (key value) on args by #'cddr and i from 0
198 collect (eval key) into initargs
200 collect value into initargs
202 collect (parameter-name i) into initargs
203 and collect value into value-forms
205 (return (values initargs value-forms)))
206 (let* ((class-name (eval class-name))
207 (function-name (make-ctor-function-name class-name initargs)))
208 ;; Prevent compiler warnings for calling the ctor.
209 (proclaim-as-fun-name function-name)
210 (note-name-defined function-name :function)
211 (when (eq (info :function :where-from function-name) :assumed)
212 (setf (info :function :where-from function-name) :defined)
213 (when (info :function :assumed-type function-name)
214 (setf (info :function :assumed-type function-name) nil)))
215 ;; Return code constructing a ctor at load time, which, when
216 ;; called, will set its funcallable instance function to an
217 ;; optimized constructor function.
219 (declare (disable-package-locks ,function-name))
220 (let ((.x. (load-time-value
221 (ensure-ctor ',function-name ',class-name ',initargs))))
222 (declare (ignore .x.))
223 ;; ??? check if this is worth it.
225 (ftype (or (function ,(make-list (length value-forms)
228 (function (&rest t) t))
230 (,function-name ,@value-forms))))))))
233 ;;; **************************************************
234 ;;; Load-Time Constructor Function Generation *******
235 ;;; **************************************************
237 ;;; The system-supplied primary INITIALIZE-INSTANCE and
238 ;;; SHARED-INITIALIZE methods. One cannot initialize these variables
239 ;;; to the right values here because said functions don't exist yet
240 ;;; when this file is first loaded.
241 (defvar *the-system-ii-method* nil)
242 (defvar *the-system-si-method* nil)
244 (defun install-optimized-constructor (ctor)
245 (let ((class (find-class (ctor-class-name ctor))))
246 (unless (class-finalized-p class)
247 (finalize-inheritance class))
248 (setf (ctor-class ctor) class)
249 (pushnew ctor (plist-value class 'ctors))
250 (setf (funcallable-instance-fun ctor)
251 ;; KLUDGE: Gerd here has the equivalent of (COMPILE NIL
252 ;; (CONSTRUCTOR-FUNCTION-FORM)), but SBCL's COMPILE doesn't
253 ;; deal with INSTANCE-LAMBDA expressions, only with LAMBDA
254 ;; expressions. The below should be equivalent, since we
255 ;; have a compiler-only implementation.
257 ;; (except maybe for optimization qualities? -- CSR,
259 (eval `(function ,(constructor-function-form ctor))))))
261 (defun constructor-function-form (ctor)
262 (let* ((class (ctor-class ctor))
263 (proto (class-prototype class))
264 (make-instance-methods
265 (compute-applicable-methods #'make-instance (list class)))
266 (allocate-instance-methods
267 (compute-applicable-methods #'allocate-instance (list class)))
268 ;; I stared at this in confusion for a while, thinking
269 ;; carefully about the possibility of the class prototype not
270 ;; being of sufficient discrimiating power, given the
271 ;; possibility of EQL-specialized methods on
272 ;; INITIALIZE-INSTANCE or SHARED-INITIALIZE. However, given
273 ;; that this is a constructor optimization, the user doesn't
274 ;; yet have the instance to create a method with such an EQL
277 ;; There remains the (theoretical) possibility of someone
278 ;; coming along with code of the form
280 ;; (defmethod initialize-instance :before ((o foo) ...)
281 ;; (eval `(defmethod shared-initialize :before ((o foo) ...) ...)))
283 ;; but probably we can afford not to worry about this too
284 ;; much for now. -- CSR, 2004-07-12
286 (compute-applicable-methods #'initialize-instance (list proto)))
288 (compute-applicable-methods #'shared-initialize (list proto t)))
289 (setf-svuc-slots-methods
290 (loop for slot in (class-slots class)
291 collect (compute-applicable-methods
292 #'(setf slot-value-using-class)
293 (list nil class proto slot))))
295 (loop for slot in (class-slots class)
296 collect (compute-applicable-methods
297 #'slot-boundp-using-class
298 (list class proto slot)))))
299 ;; Cannot initialize these variables earlier because the generic
300 ;; functions don't exist when PCL is built.
301 (when (null *the-system-si-method*)
302 (setq *the-system-si-method*
303 (find-method #'shared-initialize
304 () (list *the-class-slot-object* *the-class-t*)))
305 (setq *the-system-ii-method*
306 (find-method #'initialize-instance
307 () (list *the-class-slot-object*))))
308 ;; Note that when there are user-defined applicable methods on
309 ;; MAKE-INSTANCE and/or ALLOCATE-INSTANCE, these will show up
310 ;; together with the system-defined ones in what
311 ;; COMPUTE-APPLICABLE-METHODS returns.
312 (or (and (not (structure-class-p class))
313 (not (condition-class-p class))
314 (null (cdr make-instance-methods))
315 (null (cdr allocate-instance-methods))
317 (member (slot-definition-allocation x)
318 '(:instance :class)))
320 (null (check-initargs-1 class (plist-keys (ctor-initargs ctor))
321 (append ii-methods si-methods) nil nil))
322 (not (around-or-nonstandard-primary-method-p
323 ii-methods *the-system-ii-method*))
324 (not (around-or-nonstandard-primary-method-p
325 si-methods *the-system-si-method*))
326 ;; the instance structure protocol goes through
327 ;; slot-value(-using-class) and friends (actually just
328 ;; (SETF SLOT-VALUE-USING-CLASS) and
329 ;; SLOT-BOUNDP-USING-CLASS), so if there are non-standard
330 ;; applicable methods we can't shortcircuit them.
331 (every (lambda (x) (= (length x) 1)) setf-svuc-slots-methods)
332 (every (lambda (x) (= (length x) 1)) sbuc-slots-methods)
333 (optimizing-generator ctor ii-methods si-methods))
334 (fallback-generator ctor ii-methods si-methods))))
336 (defun around-or-nonstandard-primary-method-p
337 (methods &optional standard-method)
338 (loop with primary-checked-p = nil
339 for method in methods
340 as qualifiers = (method-qualifiers method)
341 when (or (eq :around (car qualifiers))
342 (and (null qualifiers)
343 (not primary-checked-p)
344 (not (null standard-method))
345 (not (eq standard-method method))))
347 when (null qualifiers) do
348 (setq primary-checked-p t)))
350 (defun fallback-generator (ctor ii-methods si-methods)
351 (declare (ignore ii-methods si-methods))
352 `(instance-lambda ,(make-ctor-parameter-list ctor)
353 ;; The CTOR MAKE-INSTANCE optimization only kicks in when the
354 ;; first argument to MAKE-INSTANCE is a constant symbol: by
355 ;; calling it with a class, as here, we inhibit the optimization,
356 ;; so removing the possibility of endless recursion. -- CSR,
358 (make-instance ,(ctor-class ctor) ,@(ctor-initargs ctor))))
360 (defun optimizing-generator (ctor ii-methods si-methods)
361 (multiple-value-bind (body before-method-p)
362 (fake-initialization-emf ctor ii-methods si-methods)
363 `(instance-lambda ,(make-ctor-parameter-list ctor)
364 (declare #.*optimize-speed*)
365 ,(wrap-in-allocate-forms ctor body before-method-p))))
367 ;;; Return a form wrapped around BODY that allocates an instance
368 ;;; constructed by CTOR. BEFORE-METHOD-P set means we have to run
369 ;;; before-methods, in which case we initialize instance slots to
370 ;;; +SLOT-UNBOUND+. The resulting form binds the local variables
371 ;;; .INSTANCE. to the instance, and .SLOTS. to the instance's slot
372 ;;; vector around BODY.
373 (defun wrap-in-allocate-forms (ctor body before-method-p)
374 (let* ((class (ctor-class ctor))
375 (wrapper (class-wrapper class))
376 (allocation-function (raw-instance-allocator class))
377 (slots-fetcher (slots-fetcher class)))
378 (if (eq allocation-function 'allocate-standard-instance)
379 `(let ((.instance. (%make-standard-instance nil
380 (get-instance-hash-code)))
382 ,(layout-length wrapper)
383 ,@(when before-method-p
384 '(:initial-element +slot-unbound+)))))
385 (setf (std-instance-wrapper .instance.) ,wrapper)
386 (setf (std-instance-slots .instance.) .slots.)
389 `(let* ((.instance. (,allocation-function ,wrapper))
390 (.slots. (,slots-fetcher .instance.)))
394 ;;; Return a form for invoking METHOD with arguments from ARGS. As
395 ;;; can be seen in METHOD-FUNCTION-FROM-FAST-FUNCTION, method
396 ;;; functions look like (LAMBDA (ARGS NEXT-METHODS) ...). We could
397 ;;; call fast method functions directly here, but benchmarks show that
398 ;;; there's no speed to gain, so lets avoid the hair here.
399 (defmacro invoke-method (method args)
400 `(funcall ,(method-function method) ,args ()))
402 ;;; Return a form that is sort of an effective method comprising all
403 ;;; calls to INITIALIZE-INSTANCE and SHARED-INITIALIZE that would
404 ;;; normally have taken place when calling MAKE-INSTANCE.
405 (defun fake-initialization-emf (ctor ii-methods si-methods)
406 (multiple-value-bind (ii-around ii-before ii-primary ii-after)
407 (standard-sort-methods ii-methods)
408 (declare (ignore ii-primary))
409 (multiple-value-bind (si-around si-before si-primary si-after)
410 (standard-sort-methods si-methods)
411 (declare (ignore si-primary))
412 (aver (and (null ii-around) (null si-around)))
413 (let ((initargs (ctor-initargs ctor))
414 (slot-inits (slot-init-forms ctor (or ii-before si-before))))
416 `(let (,@(when (or ii-before ii-after)
418 (list .instance. ,@(quote-plist-keys initargs)))))
419 ,@(when (or si-before si-after)
421 (list .instance. t ,@(quote-plist-keys initargs))))))
422 ,@(loop for method in ii-before
423 collect `(invoke-method ,method .ii-args.))
424 ,@(loop for method in si-before
425 collect `(invoke-method ,method .si-args.))
427 ,@(loop for method in si-after
428 collect `(invoke-method ,method .si-args.))
429 ,@(loop for method in ii-after
430 collect `(invoke-method ,method .ii-args.)))
431 (or ii-before si-before))))))
433 ;;; Return four values from APPLICABLE-METHODS: around methods, before
434 ;;; methods, the applicable primary method, and applicable after
435 ;;; methods. Before and after methods are sorted in the order they
437 (defun standard-sort-methods (applicable-methods)
438 (loop for method in applicable-methods
439 as qualifiers = (method-qualifiers method)
441 collect method into primary
442 else if (eq :around (car qualifiers))
443 collect method into around
444 else if (eq :after (car qualifiers))
445 collect method into after
446 else if (eq :before (car qualifiers))
447 collect method into before
449 (return (values around before (first primary) (reverse after)))))
451 ;;; Return a form initializing instance and class slots of an object
452 ;;; costructed by CTOR. The variable .SLOTS. is assumed to bound to
453 ;;; the instance's slot vector. BEFORE-METHOD-P T means
454 ;;; before-methods will be called, which means that 1) other code will
455 ;;; initialize instance slots to +SLOT-UNBOUND+ before the
456 ;;; before-methods are run, and that we have to check if these
457 ;;; before-methods have set slots.
458 (defun slot-init-forms (ctor before-method-p)
459 (let* ((class (ctor-class ctor))
460 (initargs (ctor-initargs ctor))
461 (initkeys (plist-keys initargs))
463 (make-array (layout-length (class-wrapper class))
464 :initial-element nil))
467 (default-initargs (class-default-initargs class))
469 (compute-initarg-locations
470 class (append initkeys (mapcar #'car default-initargs)))))
471 (labels ((initarg-locations (initarg)
472 (cdr (assoc initarg initarg-locations :test #'eq)))
473 (initializedp (location)
476 (assoc location class-inits :test #'eq))
478 (not (null (aref slot-vector location))))
479 (t (bug "Weird location in ~S" 'slot-init-forms))))
480 (class-init (location type val)
481 (aver (consp location))
482 (unless (initializedp location)
483 (push (list location type val) class-inits)))
484 (instance-init (location type val)
485 (aver (integerp location))
486 (unless (initializedp location)
487 (setf (aref slot-vector location) (list type val))))
488 (default-init-var-name (i)
489 (let ((ps #(.d0. .d1. .d2. .d3. .d4. .d5.)))
490 (if (array-in-bounds-p ps i)
492 (format-symbol *pcl-package* ".D~D." i)))))
493 ;; Loop over supplied initargs and values and record which
494 ;; instance and class slots they initialize.
495 (loop for (key value) on initargs by #'cddr
496 as locations = (initarg-locations key) do
497 (if (constantp value)
498 (dolist (location locations)
500 (class-init location 'constant value)
501 (instance-init location 'constant value)))
502 (dolist (location locations)
504 (class-init location 'param value)
505 (instance-init location 'param value)))))
506 ;; Loop over default initargs of the class, recording
507 ;; initializations of slots that have not been initialized
508 ;; above. Default initargs which are not in the supplied
509 ;; initargs are treated as if they were appended to supplied
510 ;; initargs, that is, their values must be evaluated even
511 ;; if not actually used for initializing a slot.
512 (loop for (key initfn initform) in default-initargs and i from 0
513 unless (member key initkeys :test #'eq) do
514 (let* ((type (if (constantp initform) 'constant 'var))
515 (init (if (eq type 'var) initfn initform)))
517 (let ((init-var (default-init-var-name i)))
519 (push (cons init-var initfn) default-inits)))
520 (dolist (location (initarg-locations key))
522 (class-init location type init)
523 (instance-init location type init)))))
524 ;; Loop over all slots of the class, filling in the rest from
526 (loop for slotd in (class-slots class)
527 as location = (slot-definition-location slotd)
528 as allocation = (slot-definition-allocation slotd)
529 as initfn = (slot-definition-initfunction slotd)
530 as initform = (slot-definition-initform slotd) do
531 (unless (or (eq allocation :class)
533 (initializedp location))
534 (if (constantp initform)
535 (instance-init location 'initform initform)
536 (instance-init location 'initform/initfn initfn))))
537 ;; Generate the forms for initializing instance and class slots.
538 (let ((instance-init-forms
539 (loop for slot-entry across slot-vector and i from 0
540 as (type value) = slot-entry collect
543 (unless before-method-p
544 `(setf (clos-slots-ref .slots. ,i) +slot-unbound+)))
546 `(setf (clos-slots-ref .slots. ,i) ,value))
548 `(setf (clos-slots-ref .slots. ,i) (funcall ,value)))
551 `(when (eq (clos-slots-ref .slots. ,i)
553 (setf (clos-slots-ref .slots. ,i)
555 `(setf (clos-slots-ref .slots. ,i)
559 `(when (eq (clos-slots-ref .slots. ,i)
561 (setf (clos-slots-ref .slots. ,i)
563 `(setf (clos-slots-ref .slots. ,i)
566 `(setf (clos-slots-ref .slots. ,i) ',(eval value))))))
568 (loop for (location type value) in class-inits collect
569 `(setf (cdr ',location)
571 (constant `',(eval value))
572 ((param var) `,value)
573 (initfn `(funcall ,value)))))))
574 (multiple-value-bind (vars bindings)
575 (loop for (var . initfn) in (nreverse default-inits)
576 collect var into vars
577 collect `(,var (funcall ,initfn)) into bindings
578 finally (return (values vars bindings)))
580 (declare (ignorable ,@vars))
581 ,@(delete nil instance-init-forms)
582 ,@class-init-forms))))))
584 ;;; Return an alist of lists (KEY LOCATION ...) telling, for each
585 ;;; key in INITKEYS, which locations the initarg initializes.
586 ;;; CLASS is the class of the instance being initialized.
587 (defun compute-initarg-locations (class initkeys)
588 (loop with slots = (class-slots class)
589 for key in initkeys collect
590 (loop for slot in slots
591 if (memq key (slot-definition-initargs slot))
592 collect (slot-definition-location slot) into locations
594 collect slot into remaining-slots
596 (setq slots remaining-slots)
597 (return (cons key locations)))))
600 ;;; *******************************
601 ;;; External Entry Points ********
602 ;;; *******************************
604 (defun update-ctors (reason &key class name generic-function method)
605 (labels ((reset (class &optional ri-cache-p (ctorsp t))
607 (dolist (ctor (plist-value class 'ctors))
608 (install-initial-constructor ctor)))
610 (setf (plist-value class 'ri-initargs) ()))
611 (dolist (subclass (class-direct-subclasses class))
612 (reset subclass ri-cache-p ctorsp))))
614 ;; CLASS must have been specified.
615 (finalize-inheritance
617 ;; NAME must have been specified.
619 (loop for ctor in *all-ctors*
620 when (eq (ctor-class-name ctor) name) do
621 (when (ctor-class ctor)
622 (reset (ctor-class ctor)))
624 ;; GENERIC-FUNCTION and METHOD must have been specified.
625 ((add-method remove-method)
626 (flet ((class-of-1st-method-param (method)
627 (type-class (first (method-specializers method)))))
628 (case (generic-function-name generic-function)
629 ((make-instance allocate-instance
630 initialize-instance shared-initialize)
631 (reset (class-of-1st-method-param method) t t))
632 ((reinitialize-instance)
633 (reset (class-of-1st-method-param method) t nil))
634 (t (when (or (eq (generic-function-name generic-function)
635 'slot-boundp-using-class)
636 (equal (generic-function-name generic-function)
637 '(setf slot-value-using-class)))
638 ;; this looks awfully expensive, but given that one
639 ;; can specialize on the SLOTD argument, nothing is
640 ;; safe. -- CSR, 2004-07-12
641 (reset (find-class 'standard-object))))))))))
643 (defun precompile-ctors ()
644 (dolist (ctor *all-ctors*)
645 (when (null (ctor-class ctor))
646 (let ((class (find-class (ctor-class-name ctor) nil)))
647 (when (and class (class-finalized-p class))
648 (install-optimized-constructor ctor))))))
650 (defun check-ri-initargs (instance initargs)
651 (let* ((class (class-of instance))
652 (keys (plist-keys initargs))
653 (cached (assoc keys (plist-value class 'ri-initargs)
659 ;; FIXME: give CHECK-INITARGS-1 and friends a
660 ;; more mnemonic name and (possibly) a nicer,
661 ;; more orthogonal interface.
664 (list (list* 'reinitialize-instance instance initargs)
665 (list* 'shared-initialize instance nil initargs))
667 (setf (plist-value class 'ri-initargs)
668 (acons keys invalid cached))
671 (error 'initarg-error :class class :initargs invalid-keys))))