94f15c3c |
1 | ;; Common Lisp bindings for GTK+ v2.0 |
2 | ;; Copyright (C) 2000 Espen S. Johnsen <esj@stud.cs.uit.no> |
3 | ;; |
4 | ;; This library is free software; you can redistribute it and/or |
5 | ;; modify it under the terms of the GNU Lesser General Public |
6 | ;; License as published by the Free Software Foundation; either |
7 | ;; version 2 of the License, or (at your option) any later version. |
8 | ;; |
9 | ;; This library is distributed in the hope that it will be useful, |
10 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | ;; Lesser General Public License for more details. |
13 | ;; |
14 | ;; You should have received a copy of the GNU Lesser General Public |
15 | ;; License along with this library; if not, write to the Free Software |
16 | ;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
17 | |
eeda1c2d |
18 | ;; $Id: proxy.lisp,v 1.15 2004-12-16 23:19:17 espen Exp $ |
94f15c3c |
19 | |
20 | (in-package "GLIB") |
21 | |
94f15c3c |
22 | ;;;; Superclass for all metaclasses implementing some sort of virtual slots |
23 | |
24 | (eval-when (:compile-toplevel :load-toplevel :execute) |
9adccb27 |
25 | (defclass virtual-slots-class (standard-class) |
4d83a8a6 |
26 | ()) |
94f15c3c |
27 | |
28 | (defclass direct-virtual-slot-definition (standard-direct-slot-definition) |
12d0437e |
29 | ((setter :reader slot-definition-setter :initarg :setter) |
4d83a8a6 |
30 | (getter :reader slot-definition-getter :initarg :getter) |
eeda1c2d |
31 | (unbound :reader slot-definition-unbound :initarg :unbound) |
4d83a8a6 |
32 | (boundp :reader slot-definition-boundp :initarg :boundp))) |
94f15c3c |
33 | |
4d83a8a6 |
34 | (defclass effective-virtual-slot-definition (standard-effective-slot-definition) |
35 | ((setter :reader slot-definition-setter :initarg :setter) |
36 | (getter :reader slot-definition-getter :initarg :getter) |
eeda1c2d |
37 | (unbound :reader slot-definition-unbound :initarg :unbound) |
4d83a8a6 |
38 | (boundp :reader slot-definition-boundp :initarg :boundp))) |
eeda1c2d |
39 | |
40 | (defvar *unbound-marker* (gensym "UNBOUND-MARKER-")) |
4d83a8a6 |
41 | |
eeda1c2d |
42 | (defun most-specific-slot-value (instances slot &optional |
43 | (default *unbound-marker*)) |
4d83a8a6 |
44 | (let ((object (find-if |
45 | #'(lambda (ob) |
46 | (and (slot-exists-p ob slot) (slot-boundp ob slot))) |
47 | instances))) |
48 | (if object |
49 | (slot-value object slot) |
9adccb27 |
50 | default)))) |
4d83a8a6 |
51 | |
94f15c3c |
52 | |
53 | |
9adccb27 |
54 | (defmethod direct-slot-definition-class ((class virtual-slots-class) &rest initargs) |
94f15c3c |
55 | (if (eq (getf initargs :allocation) :virtual) |
56 | (find-class 'direct-virtual-slot-definition) |
57 | (call-next-method))) |
58 | |
9adccb27 |
59 | (defmethod effective-slot-definition-class ((class virtual-slots-class) &rest initargs) |
94f15c3c |
60 | (if (eq (getf initargs :allocation) :virtual) |
61 | (find-class 'effective-virtual-slot-definition) |
62 | (call-next-method))) |
63 | |
4d83a8a6 |
64 | |
65 | (defmethod initialize-internal-slot-functions ((slotd effective-virtual-slot-definition)) |
eeda1c2d |
66 | (if (not (slot-boundp slotd 'getter)) |
67 | (setf |
4d83a8a6 |
68 | (slot-value slotd 'reader-function) |
eeda1c2d |
69 | #'(lambda (object) |
70 | (declare (ignore object)) |
71 | (error "Can't read slot: ~A" (slot-definition-name slotd))) |
72 | (slot-value slotd 'boundp-function) |
73 | #'(lambda (object) (declare (ignore object)) nil)) |
74 | |
75 | (let ((getter-function |
76 | (let ((getter (slot-value slotd 'getter))) |
77 | (etypecase getter |
78 | (function getter) |
79 | (symbol |
80 | #'(lambda (object) |
81 | (funcall getter object))) |
82 | (string |
83 | (let ((reader nil)) |
84 | (setf (slot-value slotd 'reader-function) |
85 | #'(lambda (object) |
86 | (unless reader |
87 | (setq reader |
88 | (mkbinding getter |
89 | (slot-definition-type slotd) 'pointer))) |
90 | (funcall reader (proxy-location object)))))))))) |
91 | |
4d83a8a6 |
92 | (setf |
eeda1c2d |
93 | (slot-value slotd 'boundp-function) |
94 | (cond |
95 | ((and |
96 | (not (slot-boundp slotd 'unbound)) |
97 | (not (slot-boundp slotd 'boundp))) |
98 | #'(lambda (object) (declare (ignore object)) t)) |
99 | ((slot-boundp slotd 'unbound) |
100 | (let ((unbound-value (slot-value slotd 'unbound))) |
101 | (lambda (object) |
102 | (not (eq (funcall getter-function object) unbound-value))))) |
103 | ((let ((boundp (slot-value slotd 'boundp))) |
104 | (etypecase boundp |
105 | (function boundp) |
106 | (symbol #'(lambda (object) |
107 | (funcall boundp object))) |
108 | (string (let ((reader ())) |
109 | #'(lambda (object) |
110 | (unless reader |
111 | (setq reader |
112 | (mkbinding boundp |
113 | (slot-definition-type slotd) 'pointer))) |
114 | (funcall reader (proxy-location object)))))))))) |
115 | |
116 | (setf |
117 | (slot-value slotd 'reader-function) |
118 | (cond |
119 | ((slot-boundp slotd 'unbound) |
120 | (let ((unbound (slot-value slotd 'unbound)) |
121 | (slot-name (slot-definition-name slotd))) |
122 | (lambda (object) |
123 | (let ((value (funcall getter-function object))) |
124 | (if (eq value unbound) |
125 | (slot-unbound (class-of object) object slot-name) |
126 | value))))) |
127 | ((slot-boundp slotd 'boundp) |
128 | (let ((boundp-function (slot-value slotd 'boundp-function))) |
129 | (lambda (object) |
130 | (and |
131 | (funcall boundp-function object) |
132 | (funcall getter-function object))))) |
133 | (getter-function))))) |
134 | |
135 | (setf |
136 | (slot-value slotd 'writer-function) |
137 | (if (not (slot-boundp slotd 'setter)) |
138 | #'(lambda (object) |
139 | (declare (ignore object)) |
140 | (error "Can't set slot: ~A" (slot-definition-name slotd))) |
141 | (with-slots (setter) slotd |
4d83a8a6 |
142 | (etypecase setter |
143 | (function setter) |
eeda1c2d |
144 | ((or symbol cons) |
145 | #'(lambda (value object) |
146 | (funcall (fdefinition setter) value object))) |
7d1ddc9e |
147 | (string |
eeda1c2d |
148 | (let ((writer ())) |
149 | (setf |
150 | (slot-value slotd 'writer-function) |
151 | #'(lambda (value object) |
152 | (unless writer |
153 | (setq writer |
154 | (mkbinding setter 'nil 'pointer |
155 | (slot-definition-type slotd)))) |
156 | (funcall writer (proxy-location object) value))))))))) |
157 | |
4d83a8a6 |
158 | (initialize-internal-slot-gfs (slot-definition-name slotd))) |
159 | |
160 | |
161 | |
eeda1c2d |
162 | (defmethod compute-slot-accessor-info ((slotd effective-virtual-slot-definition) type gf) |
4d83a8a6 |
163 | nil) |
164 | |
9adccb27 |
165 | (defmethod compute-effective-slot-definition-initargs ((class virtual-slots-class) direct-slotds) |
eeda1c2d |
166 | (if (typep (first direct-slotds) 'direct-virtual-slot-definition) |
167 | (let ((initargs ())) |
168 | (let ((getter (most-specific-slot-value direct-slotds 'getter))) |
169 | (unless (eq getter *unbound-marker*) |
170 | (setf (getf initargs :getter) getter))) |
171 | (let ((setter (most-specific-slot-value direct-slotds 'setter))) |
172 | (unless (eq setter *unbound-marker*) |
173 | (setf (getf initargs :setter) setter))) |
174 | (let ((unbound (most-specific-slot-value direct-slotds 'unbound))) |
175 | (unless (eq unbound *unbound-marker*) |
176 | (setf (getf initargs :unbound) unbound))) |
177 | (let ((boundp (most-specific-slot-value direct-slotds 'boundp))) |
178 | (unless (eq boundp *unbound-marker*) |
179 | (setf (getf initargs :boundp) boundp))) |
180 | (nconc initargs (call-next-method))) |
4d83a8a6 |
181 | (call-next-method))) |
182 | |
94f15c3c |
183 | |
94f15c3c |
184 | (defmethod slot-value-using-class |
9adccb27 |
185 | ((class virtual-slots-class) (object standard-object) |
94f15c3c |
186 | (slotd effective-virtual-slot-definition)) |
4d83a8a6 |
187 | (if (funcall (slot-value slotd 'boundp-function) object) |
188 | (funcall (slot-value slotd 'reader-function) object) |
189 | (slot-unbound class object (slot-definition-name slotd)))) |
94f15c3c |
190 | |
94f15c3c |
191 | (defmethod slot-boundp-using-class |
9adccb27 |
192 | ((class virtual-slots-class) (object standard-object) |
94f15c3c |
193 | (slotd effective-virtual-slot-definition)) |
4d83a8a6 |
194 | (funcall (slot-value slotd 'boundp-function) object)) |
195 | |
196 | (defmethod (setf slot-value-using-class) |
9adccb27 |
197 | (value (class virtual-slots-class) (object standard-object) |
94f15c3c |
198 | (slotd effective-virtual-slot-definition)) |
4d83a8a6 |
199 | (funcall (slot-value slotd 'writer-function) value object)) |
200 | |
201 | |
94f15c3c |
202 | (defmethod validate-superclass |
9adccb27 |
203 | ((class virtual-slots-class) (super standard-class)) |
94f15c3c |
204 | t) |
205 | |
206 | |
207 | ;;;; Proxy cache |
208 | |
209 | (internal *instance-cache*) |
210 | (defvar *instance-cache* (make-hash-table :test #'eql)) |
211 | |
212 | (defun cache-instance (instance) |
213 | (setf |
214 | (gethash (system:sap-int (proxy-location instance)) *instance-cache*) |
215 | (ext:make-weak-pointer instance))) |
216 | |
217 | (defun find-cached-instance (location) |
218 | (let ((ref (gethash (system:sap-int location) *instance-cache*))) |
219 | (when ref |
220 | (ext:weak-pointer-value ref)))) |
221 | |
0f134a29 |
222 | (defun instance-cached-p (location) |
223 | (gethash (system:sap-int location) *instance-cache*)) |
224 | |
94f15c3c |
225 | (defun remove-cached-instance (location) |
226 | (remhash (system:sap-int location) *instance-cache*)) |
227 | |
9adccb27 |
228 | ;; For debuging |
229 | (defun cached-instances () |
230 | (let ((instances ())) |
231 | (maphash #'(lambda (location ref) |
232 | (declare (ignore location)) |
233 | (push (ext:weak-pointer-value ref) instances)) |
234 | *instance-cache*) |
235 | instances)) |
236 | |
94f15c3c |
237 | |
238 | |
239 | ;;;; Proxy for alien instances |
240 | |
9adccb27 |
241 | (defclass proxy () |
242 | ((location :reader proxy-location :type system-area-pointer))) |
94f15c3c |
243 | |
9adccb27 |
244 | (defgeneric initialize-proxy (object &rest initargs)) |
245 | (defgeneric instance-finalizer (object)) |
246 | (defgeneric reference-foreign (class location)) |
247 | (defgeneric unreference-foreign (class location)) |
248 | |
249 | (defmethod unreference-foreign :around ((class class) location) |
250 | (unless (null-pointer-p location) |
251 | ;; (format t "Unreferencing ~A at ~A" (class-name class) location) |
252 | ;; (finish-output *standard-output*) |
253 | (call-next-method) |
254 | ;; (write-line " done") |
255 | ;; (finish-output *standard-output*) |
256 | )) |
94f15c3c |
257 | |
0f134a29 |
258 | (defmethod print-object ((instance proxy) stream) |
259 | (print-unreadable-object (instance stream :type t :identity nil) |
eeda1c2d |
260 | (when (slot-boundp instance 'location) |
261 | (format stream "at 0x~X" (sap-int (proxy-location instance)))))) |
94f15c3c |
262 | |
9adccb27 |
263 | (defmethod initialize-instance :around ((instance proxy) &key location) |
264 | (if location |
265 | (setf (slot-value instance 'location) location) |
266 | (call-next-method)) |
12d0437e |
267 | (cache-instance instance) |
9adccb27 |
268 | (ext:finalize instance (instance-finalizer instance)) |
269 | instance) |
94f15c3c |
270 | |
271 | (defmethod instance-finalizer ((instance proxy)) |
9adccb27 |
272 | (let ((location (proxy-location instance)) |
273 | (class (class-of instance))) |
274 | ;; (unless (find-method #'unreference-foreign nil (list (class-of class) t) nil) |
275 | ;; (error "No matching method for UNREFERENCE-INSTANCE when called with class ~A" class)) |
276 | #'(lambda () |
1dbf4216 |
277 | (remove-cached-instance location) |
9adccb27 |
278 | (unreference-foreign class location)))) |
12d0437e |
279 | |
94f15c3c |
280 | |
281 | ;;;; Metaclass used for subclasses of proxy |
282 | |
283 | (eval-when (:compile-toplevel :load-toplevel :execute) |
9adccb27 |
284 | (defclass proxy-class (virtual-slots-class) |
285 | ((size :reader proxy-instance-size))) |
94f15c3c |
286 | |
287 | (defclass direct-alien-slot-definition (direct-virtual-slot-definition) |
12d0437e |
288 | ((allocation :initform :alien) |
289 | (offset :reader slot-definition-offset :initarg :offset))) |
94f15c3c |
290 | |
291 | (defclass effective-alien-slot-definition (effective-virtual-slot-definition) |
4d83a8a6 |
292 | ((offset :reader slot-definition-offset :initarg :offset))) |
12d0437e |
293 | |
94f15c3c |
294 | |
295 | (defmethod most-specific-proxy-superclass ((class proxy-class)) |
296 | (find-if |
297 | #'(lambda (class) |
298 | (subtypep (class-name class) 'proxy)) |
4d83a8a6 |
299 | (cdr (compute-class-precedence-list class)))) |
300 | |
12d0437e |
301 | (defmethod direct-proxy-superclass ((class proxy-class)) |
302 | (find-if |
303 | #'(lambda (class) |
304 | (subtypep (class-name class) 'proxy)) |
4d83a8a6 |
305 | (class-direct-superclasses class))) |
306 | |
eeda1c2d |
307 | (defmethod shared-initialize ((class proxy-class) names &key size) |
94f15c3c |
308 | (call-next-method) |
12d0437e |
309 | (cond |
4d83a8a6 |
310 | (size (setf (slot-value class 'size) (first size))) |
9adccb27 |
311 | ((slot-boundp class 'size) (slot-makunbound class 'size)))) |
4d83a8a6 |
312 | |
313 | (defmethod direct-slot-definition-class ((class proxy-class) &rest initargs) |
94f15c3c |
314 | (case (getf initargs :allocation) |
315 | ((nil :alien) (find-class 'direct-alien-slot-definition)) |
94f15c3c |
316 | (t (call-next-method)))) |
4d83a8a6 |
317 | |
318 | (defmethod effective-slot-definition-class ((class proxy-class) &rest initargs) |
94f15c3c |
319 | (case (getf initargs :allocation) |
320 | (:alien (find-class 'effective-alien-slot-definition)) |
94f15c3c |
321 | (t (call-next-method)))) |
322 | |
4d83a8a6 |
323 | |
324 | (defmethod compute-effective-slot-definition-initargs ((class proxy-class) direct-slotds) |
325 | (if (eq (most-specific-slot-value direct-slotds 'allocation) :alien) |
326 | (nconc |
327 | (list :offset (most-specific-slot-value direct-slotds 'offset)) |
328 | (call-next-method)) |
329 | (call-next-method))) |
330 | |
331 | |
332 | (defmethod initialize-internal-slot-functions ((slotd effective-alien-slot-definition)) |
333 | (with-slots (offset) slotd |
9adccb27 |
334 | (let ((type (slot-definition-type slotd))) |
eeda1c2d |
335 | (unless (slot-boundp slotd 'getter) |
9adccb27 |
336 | (let ((reader (reader-function type))) |
337 | (setf |
eeda1c2d |
338 | (slot-value slotd 'getter) |
9adccb27 |
339 | #'(lambda (object) |
340 | (funcall reader (proxy-location object) offset))))) |
4d83a8a6 |
341 | |
eeda1c2d |
342 | (unless (slot-boundp slotd 'setter) |
9adccb27 |
343 | (let ((writer (writer-function type)) |
344 | (destroy (destroy-function type))) |
345 | (setf |
eeda1c2d |
346 | (slot-value slotd 'setter) |
9adccb27 |
347 | #'(lambda (value object) |
348 | (let ((location (proxy-location object))) |
349 | (funcall destroy location offset) ; destroy old value |
eeda1c2d |
350 | (funcall writer value location offset)))))))) |
351 | |
4d83a8a6 |
352 | (call-next-method)) |
353 | |
354 | |
4d83a8a6 |
355 | ;; TODO: call some C code to detect this a compile time |
356 | (defconstant +struct-alignmen+ 4) |
94f15c3c |
357 | |
358 | (defmethod compute-slots ((class proxy-class)) |
4d83a8a6 |
359 | (loop |
9adccb27 |
360 | with offset = (proxy-instance-size (most-specific-proxy-superclass class)) |
4d83a8a6 |
361 | with size = offset |
362 | for slotd in (class-direct-slots class) |
363 | when (eq (slot-definition-allocation slotd) :alien) |
364 | do (if (not (slot-boundp slotd 'offset)) |
365 | (setf (slot-value slotd 'offset) offset) |
366 | (setq offset (slot-value slotd 'offset))) |
367 | |
368 | (incf offset (size-of (slot-definition-type slotd))) |
369 | (incf offset (mod offset +struct-alignmen+)) |
370 | (setq size (max size offset)) |
371 | |
372 | finally (unless (slot-boundp class 'size) |
373 | (setf (slot-value class 'size) size))) |
94f15c3c |
374 | (call-next-method)) |
3e15002d |
375 | |
4d83a8a6 |
376 | |
377 | (defmethod validate-superclass ((class proxy-class) (super standard-class)) |
378 | (subtypep (class-name super) 'proxy)) |
379 | |
9adccb27 |
380 | (defmethod proxy-instance-size (class) |
12d0437e |
381 | (declare (ignore class)) |
382 | 0) |
4d83a8a6 |
383 | ) |
384 | |
9adccb27 |
385 | (defmethod alien-type ((class proxy-class) &rest args) |
386 | (declare (ignore class args)) |
387 | (alien-type 'pointer)) |
388 | |
389 | (defmethod size-of ((class proxy-class) &rest args) |
390 | (declare (ignore class args)) |
391 | (size-of 'pointer)) |
392 | |
393 | (defmethod from-alien-form (location (class proxy-class) &rest args) |
394 | (declare (ignore args)) |
395 | `(ensure-proxy-instance ',(class-name class) ,location)) |
396 | |
397 | (defmethod from-alien-function ((class proxy-class) &rest args) |
398 | (declare (ignore args)) |
399 | #'(lambda (location) |
400 | (ensure-proxy-instance class location))) |
94f15c3c |
401 | |
9adccb27 |
402 | (defmethod to-alien-form (instance (class proxy-class) &rest args) |
403 | (declare (ignore class args)) |
404 | `(proxy-location ,instance)) |
94f15c3c |
405 | |
9adccb27 |
406 | (defmethod to-alien-function ((class proxy-class) &rest args) |
407 | (declare (ignore class args)) |
408 | #'proxy-location) |
409 | |
9ca5565a |
410 | (defmethod copy-from-alien-form (location (class proxy-class) &rest args) |
411 | (declare (ignore args)) |
412 | (let ((class-name (class-name class))) |
413 | `(ensure-proxy-instance ',class-name |
414 | (reference-foreign ',class-name ,location)))) |
415 | |
416 | (defmethod copy-from-alien-function ((class proxy-class) &rest args) |
417 | (declare (ignore args)) |
418 | #'(lambda (location) |
419 | (ensure-proxy-instance class (reference-foreign class location)))) |
420 | |
421 | (defmethod copy-to-alien-form (instance (class proxy-class) &rest args) |
422 | (declare (ignore args)) |
423 | `(reference-foreign ',(class-name class) (proxy-location ,instance))) |
424 | |
425 | (defmethod copy-to-alien-function ((class proxy-class) &rest args) |
426 | (declare (ignore class args)) |
427 | #'(lambda (instance) |
428 | (reference-foreign class (proxy-location instance)))) |
429 | |
9adccb27 |
430 | (defmethod writer-function ((class proxy-class) &rest args) |
431 | (declare (ignore args)) |
432 | #'(lambda (instance location &optional (offset 0)) |
433 | (assert (null-pointer-p (sap-ref-sap location offset))) |
434 | (setf |
435 | (sap-ref-sap location offset) |
436 | (reference-foreign class (proxy-location instance))))) |
94f15c3c |
437 | |
9adccb27 |
438 | (defmethod reader-function ((class proxy-class) &rest args) |
439 | (declare (ignore args)) |
440 | #'(lambda (location &optional (offset 0)) |
9ca5565a |
441 | (let ((instance (sap-ref-sap location offset))) |
442 | (unless (null-pointer-p instance) |
443 | (ensure-proxy-instance class (reference-foreign class instance)))))) |
94f15c3c |
444 | |
9adccb27 |
445 | (defmethod destroy-function ((class proxy-class) &rest args) |
446 | (declare (ignore args)) |
447 | #'(lambda (location &optional (offset 0)) |
448 | (unreference-foreign class (sap-ref-sap location offset)))) |
449 | |
450 | |
451 | (defgeneric ensure-proxy-instance (class location) |
452 | (:documentation "Returns a proxy object representing the foreign object at the give location.")) |
453 | |
454 | (defmethod ensure-proxy-instance :around (class location) |
455 | (unless (null-pointer-p location) |
456 | (or |
457 | (find-cached-instance location) |
458 | (call-next-method)))) |
459 | |
460 | (defmethod ensure-proxy-instance ((class symbol) location) |
461 | (ensure-proxy-instance (find-class class) location)) |
462 | |
463 | (defmethod ensure-proxy-instance ((class proxy-class) location) |
464 | (make-instance class :location location)) |
94f15c3c |
465 | |
12d0437e |
466 | |
467 | ;;;; Superclasses for wrapping of C structures |
94f15c3c |
468 | |
9adccb27 |
469 | (defclass struct (proxy) |
470 | () |
471 | (:metaclass proxy-class)) |
94f15c3c |
472 | |
9adccb27 |
473 | (defmethod initialize-instance ((struct struct) &rest initargs) |
94f15c3c |
474 | (declare (ignore initargs)) |
ec1a4146 |
475 | (unless (slot-boundp struct 'location) |
476 | (let ((size (proxy-instance-size (class-of struct)))) |
477 | (if (zerop size) |
478 | (error "~A has zero size" (class-of struct)) |
479 | (setf (slot-value struct 'location) (allocate-memory size))))) |
94f15c3c |
480 | (call-next-method)) |
481 | |
482 | |
9adccb27 |
483 | ;;;; Metaclasses used for subclasses of struct |
484 | |
485 | (defclass struct-class (proxy-class) |
486 | ()) |
94f15c3c |
487 | |
9adccb27 |
488 | (defmethod reference-foreign ((class struct-class) location) |
489 | (copy-memory location (proxy-instance-size class))) |
490 | |
491 | (defmethod unreference-foreign ((class struct-class) location) |
12d0437e |
492 | (deallocate-memory location)) |
94f15c3c |
493 | |
494 | |
9adccb27 |
495 | (defclass static-struct-class (struct-class) |
496 | ()) |
94f15c3c |
497 | |
9adccb27 |
498 | (defmethod reference-foreign ((class static-struct-class) location) |
499 | (declare (ignore class)) |
12d0437e |
500 | location) |
94f15c3c |
501 | |
9adccb27 |
502 | (defmethod unreference-foreign ((class static-struct-class) location) |
503 | (declare (ignore class location)) |
12d0437e |
504 | nil) |