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1f1d88f5 MW |
1 | ;;; -*-lisp-*- |
2 | ;;; | |
dea4d055 | 3 | ;;; Output for classes |
1f1d88f5 MW |
4 | ;;; |
5 | ;;; (c) 2009 Straylight/Edgeware | |
6 | ;;; | |
7 | ||
8 | ;;;----- Licensing notice --------------------------------------------------- | |
9 | ;;; | |
e0808c47 | 10 | ;;; This file is part of the Sensible Object Design, an object system for C. |
1f1d88f5 MW |
11 | ;;; |
12 | ;;; SOD is free software; you can redistribute it and/or modify | |
13 | ;;; it under the terms of the GNU General Public License as published by | |
14 | ;;; the Free Software Foundation; either version 2 of the License, or | |
15 | ;;; (at your option) any later version. | |
16 | ;;; | |
17 | ;;; SOD is distributed in the hope that it will be useful, | |
18 | ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;;; GNU General Public License for more details. | |
21 | ;;; | |
22 | ;;; You should have received a copy of the GNU General Public License | |
23 | ;;; along with SOD; if not, write to the Free Software Foundation, | |
24 | ;;; Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | ||
26 | (cl:in-package #:sod) | |
27 | ||
28 | ;;;-------------------------------------------------------------------------- | |
6e2d4b52 MW |
29 | ;;; Walking the layout tree. |
30 | ||
31 | (defmethod hook-output progn ((class sod-class) reason sequencer) | |
32 | (with-slots ((ilayout %ilayout) vtables methods effective-methods) class | |
33 | (hook-output ilayout reason sequencer) | |
34 | (dolist (method methods) (hook-output method reason sequencer)) | |
35 | (dolist (method effective-methods) (hook-output method reason sequencer)) | |
36 | (dolist (vtable vtables) (hook-output vtable reason sequencer)))) | |
37 | ||
38 | (defmethod hook-output progn ((ilayout ilayout) reason sequencer) | |
39 | (with-slots (ichains) ilayout | |
40 | (dolist (ichain ichains) (hook-output ichain reason sequencer)))) | |
41 | ||
42 | (defmethod hook-output progn ((ichain ichain) reason sequencer) | |
1224dfb0 | 43 | (dolist (item (ichain-body ichain)) (hook-output item reason sequencer))) |
6e2d4b52 MW |
44 | |
45 | (defmethod hook-output progn ((islots islots) reason sequencer) | |
1224dfb0 | 46 | (dolist (slot (islots-slots islots)) (hook-output slot reason sequencer))) |
6e2d4b52 MW |
47 | |
48 | (defmethod hook-output progn ((vtable vtable) reason sequencer) | |
49 | (with-slots (body) vtable | |
50 | (dolist (item body) (hook-output item reason sequencer)))) | |
51 | ||
52 | (defmethod hook-output progn ((vtmsgs vtmsgs) reason sequencer) | |
53 | (with-slots (entries) vtmsgs | |
54 | (dolist (entry entries) (hook-output entry reason sequencer)))) | |
55 | ||
56 | ;;;-------------------------------------------------------------------------- | |
1f1d88f5 MW |
57 | ;;; Classes. |
58 | ||
5b0a2bdb | 59 | (defmethod hook-output progn ((class sod-class) (reason (eql :h)) sequencer) |
1f1d88f5 MW |
60 | |
61 | ;; Main output sequencing. | |
62 | (sequence-output (stream sequencer) | |
63 | ||
64 | :constraint | |
1f1d88f5 MW |
65 | ((:classes :start) |
66 | (class :banner) | |
67 | (class :islots :start) (class :islots :slots) (class :islots :end) | |
68 | (class :vtmsgs :start) (class :vtmsgs :end) | |
69 | (class :vtables :start) (class :vtables :end) | |
70 | (class :vtable-externs) (class :vtable-externs-after) | |
43073476 MW |
71 | (class :methods :start) (class :methods :defs) |
72 | (class :methods) (class :methods :end) | |
1f1d88f5 MW |
73 | (class :ichains :start) (class :ichains :end) |
74 | (class :ilayout :start) (class :ilayout :slots) (class :ilayout :end) | |
75 | (class :conversions) | |
6bc944c3 | 76 | (class :message-macros) |
ddee4bb1 | 77 | (class :object) |
1f1d88f5 MW |
78 | (:classes :end)) |
79 | ||
80 | (:typedefs | |
81 | (format stream "typedef struct ~A ~A;~%" | |
82 | (ichain-struct-tag class (sod-class-chain-head class)) class)) | |
83 | ||
84 | ((class :banner) | |
85 | (banner (format nil "Class ~A" class) stream)) | |
86 | ((class :vtable-externs-after) | |
ddee4bb1 MW |
87 | (terpri stream)) |
88 | ||
89 | ((class :vtable-externs) | |
90 | (format stream "/* Vtable structures. */~%")) | |
91 | ||
92 | ((class :object) | |
93 | (let ((metaclass (sod-class-metaclass class)) | |
94 | (metaroot (find-root-metaclass class))) | |
a07d8d00 MW |
95 | (format stream "/* The class object. */~@ |
96 | extern const struct ~A ~A__classobj;~@ | |
489173a5 | 97 | #define ~:*~A__class (&~:*~A__classobj.~A.~A)~%" |
ddee4bb1 MW |
98 | (ilayout-struct-tag metaclass) class |
99 | (sod-class-nickname (sod-class-chain-head metaroot)) | |
489173a5 MW |
100 | (sod-class-nickname metaroot)) |
101 | (dolist (chain (sod-class-chains metaclass)) | |
102 | (let ((tail (car chain))) | |
103 | (unless (eq tail metaroot) | |
104 | (format stream "#define ~A__cls_~A (&~2:*~A__classobj.~A.~A)~%" | |
105 | class (sod-class-nickname (sod-class-chain-head tail)) | |
106 | (sod-class-nickname tail))))) | |
107 | (terpri stream)))) | |
1f1d88f5 MW |
108 | |
109 | ;; Maybe generate an islots structure. | |
110 | (when (sod-class-slots class) | |
111 | (dolist (slot (sod-class-slots class)) | |
dea4d055 | 112 | (hook-output slot 'islots sequencer)) |
1f1d88f5 MW |
113 | (sequence-output (stream sequencer) |
114 | ((class :islots :start) | |
a07d8d00 | 115 | (format stream "/* Instance slots. */~@ |
ddee4bb1 MW |
116 | struct ~A {~%" |
117 | (islots-struct-tag class))) | |
1f1d88f5 MW |
118 | ((class :islots :end) |
119 | (format stream "};~2%")))) | |
120 | ||
121 | ;; Declare the direct methods. | |
122 | (when (sod-class-methods class) | |
1f1d88f5 | 123 | (sequence-output (stream sequencer) |
ddee4bb1 MW |
124 | ((class :methods :start) |
125 | (format stream "/* Direct methods. */~%")) | |
126 | ((class :methods :end) | |
1f1d88f5 MW |
127 | (terpri stream)))) |
128 | ||
129 | ;; Provide upcast macros which do the right thing. | |
130 | (when (sod-class-direct-superclasses class) | |
131 | (sequence-output (stream sequencer) | |
132 | ((class :conversions) | |
133 | (let ((chain-head (sod-class-chain-head class))) | |
ddee4bb1 | 134 | (format stream "/* Conversion macros. */~%") |
1f1d88f5 MW |
135 | (dolist (super (cdr (sod-class-precedence-list class))) |
136 | (let ((super-head (sod-class-chain-head super))) | |
bb172d53 MW |
137 | (format stream "#define ~:@(~A__CONV_~A~)(_obj) ((~A *)~ |
138 | ~:[SOD_XCHAIN(~A, (_obj))~;(_obj)~])~%" | |
1f1d88f5 MW |
139 | class (sod-class-nickname super) super |
140 | (eq chain-head super-head) | |
ddee4bb1 MW |
141 | (sod-class-nickname super-head)))) |
142 | (terpri stream))))) | |
1f1d88f5 | 143 | |
6bc944c3 MW |
144 | ;; Provide convenience macros for sending the newly defined messages. (The |
145 | ;; macros work on all subclasses too.) | |
146 | ;; | |
147 | ;; We need each message's method entry type for this, so we need to dig it | |
148 | ;; out of the vtmsgs structure. Indeed, the vtmsgs for this class contains | |
149 | ;; entries for precisely the messages we want to make macros for. | |
43073476 MW |
150 | (when (some (lambda (message) |
151 | (or (keyword-message-p message) | |
152 | (varargs-message-p message))) | |
153 | (sod-class-messages class)) | |
e674612e MW |
154 | (one-off-output 'varargs-macros sequencer :early-decls |
155 | (lambda (stream) | |
156 | (format stream | |
157 | "~%SOD__VARARGS_MACROS_PREAMBLE~%")))) | |
6bc944c3 MW |
158 | (when (sod-class-messages class) |
159 | (sequence-output (stream sequencer) | |
160 | ((class :message-macros) | |
161 | (let* ((vtable (find (sod-class-chain-head class) | |
162 | (sod-class-vtables class) | |
163 | :key #'vtable-chain-head)) | |
164 | (vtmsgs (find-if (lambda (item) | |
165 | (and (typep item 'vtmsgs) | |
166 | (eql (vtmsgs-class item) class))) | |
167 | (vtable-body vtable)))) | |
168 | (format stream "/* Message invocation macros. */~%") | |
6bc944c3 MW |
169 | (dolist (entry (vtmsgs-entries vtmsgs)) |
170 | (let* ((type (method-entry-function-type entry)) | |
171 | (args (c-function-arguments type)) | |
6bc944c3 MW |
172 | (in-names nil) (out-names nil) (varargsp nil) (me "me")) |
173 | (do ((args args (cdr args))) | |
174 | ((endp args)) | |
b426ab51 | 175 | (let* ((raw-name (princ-to-string (argument-name (car args)))) |
6bc944c3 MW |
176 | (name (if (find raw-name |
177 | (list "_vt" | |
178 | (sod-class-nickname class) | |
b426ab51 | 179 | (method-entry-slot-name entry)) |
6bc944c3 MW |
180 | :test #'string=) |
181 | (format nil "sod__a_~A" raw-name) | |
182 | raw-name))) | |
183 | (cond ((and (cdr args) (eq (cadr args) :ellipsis)) | |
184 | (setf varargsp t) | |
68a4f8c9 | 185 | (unless in-names (setf me "SOD__CAR(__VA_ARGS__)")) |
6bc944c3 MW |
186 | (push (format nil "/*~A*/ ..." name) in-names) |
187 | (push "__VA_ARGS__" out-names) | |
188 | (return)) | |
189 | (t | |
190 | (push name in-names) | |
191 | (push name out-names))))) | |
192 | (when varargsp | |
e674612e | 193 | (format stream "#ifdef SOD__HAVE_VARARGS_MACROS~%")) |
6bc944c3 | 194 | (format stream "#define ~A(~{~A~^, ~}) ~ |
d908a89e | 195 | (~A)->_vt->~A.~A(~{~A~^, ~})~%" |
b426ab51 | 196 | (message-macro-name class entry) |
6bc944c3 MW |
197 | (nreverse in-names) |
198 | me | |
199 | (sod-class-nickname class) | |
b426ab51 | 200 | (method-entry-slot-name entry) |
6bc944c3 MW |
201 | (nreverse out-names)) |
202 | (when varargsp | |
203 | (format stream "#endif~%")))) | |
204 | (terpri stream))))) | |
205 | ||
1f1d88f5 | 206 | ;; Generate vtmsgs structure for all superclasses. |
6e2d4b52 | 207 | (hook-output (car (sod-class-vtables class)) 'vtmsgs sequencer)) |
1f1d88f5 MW |
208 | |
209 | ;;;-------------------------------------------------------------------------- | |
210 | ;;; Instance structure. | |
211 | ||
1224dfb0 MW |
212 | (defmethod hook-output progn |
213 | ((slot sod-slot) (reason (eql 'islots)) sequencer) | |
1f1d88f5 MW |
214 | (sequence-output (stream sequencer) |
215 | (((sod-slot-class slot) :islots :slots) | |
216 | (pprint-logical-block (stream nil :prefix " " :suffix ";") | |
217 | (pprint-c-type (sod-slot-type slot) stream (sod-slot-name slot))) | |
218 | (terpri stream)))) | |
219 | ||
5b0a2bdb | 220 | (defmethod hook-output progn ((ilayout ilayout) (reason (eql :h)) sequencer) |
4b8e5c03 | 221 | (with-slots ((class %class) ichains) ilayout |
1f1d88f5 MW |
222 | (sequence-output (stream sequencer) |
223 | ((class :ilayout :start) | |
a07d8d00 | 224 | (format stream "/* Instance layout. */~@ |
ddee4bb1 MW |
225 | struct ~A {~%" |
226 | (ilayout-struct-tag class))) | |
1f1d88f5 MW |
227 | ((class :ilayout :end) |
228 | (format stream "};~2%"))) | |
229 | (dolist (ichain ichains) | |
dea4d055 | 230 | (hook-output ichain 'ilayout sequencer)))) |
1f1d88f5 | 231 | |
5b0a2bdb | 232 | (defmethod hook-output progn ((ichain ichain) (reason (eql :h)) sequencer) |
4b8e5c03 | 233 | (with-slots ((class %class) chain-head chain-tail) ichain |
ddee4bb1 MW |
234 | (when (eq class chain-tail) |
235 | (sequence-output (stream sequencer) | |
236 | :constraint ((class :ichains :start) | |
237 | (class :ichain chain-head :start) | |
238 | (class :ichain chain-head :slots) | |
239 | (class :ichain chain-head :end) | |
240 | (class :ichains :end)) | |
241 | ((class :ichain chain-head :start) | |
a07d8d00 | 242 | (format stream "/* Instance chain structure. */~@ |
ddee4bb1 MW |
243 | struct ~A {~%" |
244 | (ichain-struct-tag chain-tail chain-head))) | |
245 | ((class :ichain chain-head :end) | |
246 | (format stream "};~2%") | |
a07d8d00 MW |
247 | (format stream "/* Union of equivalent superclass chains. */~@ |
248 | union ~A {~@ | |
ddee4bb1 MW |
249 | ~:{ struct ~A ~A;~%~}~ |
250 | };~2%" | |
251 | (ichain-union-tag chain-tail chain-head) | |
dea4d055 MW |
252 | |
253 | ;; Make sure the most specific class is first: only the | |
254 | ;; first element of a union can be statically initialized in | |
255 | ;; C90. | |
ddee4bb1 MW |
256 | (mapcar (lambda (super) |
257 | (list (ichain-struct-tag super chain-head) | |
258 | (sod-class-nickname super))) | |
259 | (sod-class-chain chain-tail)))))))) | |
1f1d88f5 | 260 | |
1224dfb0 MW |
261 | (defmethod hook-output progn |
262 | ((ichain ichain) (reason (eql 'ilayout)) sequencer) | |
4b8e5c03 | 263 | (with-slots ((class %class) chain-head chain-tail) ichain |
1f1d88f5 MW |
264 | (sequence-output (stream sequencer) |
265 | ((class :ilayout :slots) | |
ddee4bb1 MW |
266 | (format stream " union ~A ~A;~%" |
267 | (ichain-union-tag chain-tail chain-head) | |
1f1d88f5 MW |
268 | (sod-class-nickname chain-head)))))) |
269 | ||
5b0a2bdb MW |
270 | (defmethod hook-output progn ((vtptr vtable-pointer) |
271 | (reason (eql :h)) | |
272 | sequencer) | |
4b8e5c03 | 273 | (with-slots ((class %class) chain-head chain-tail) vtptr |
64fd357d MW |
274 | (when (eq class chain-tail) |
275 | (sequence-output (stream sequencer) | |
276 | ((class :ichain chain-head :slots) | |
277 | (format stream " const struct ~A *_vt;~%" | |
278 | (vtable-struct-tag chain-tail chain-head))))))) | |
1f1d88f5 | 279 | |
5b0a2bdb | 280 | (defmethod hook-output progn ((islots islots) (reason (eql :h)) sequencer) |
4b8e5c03 | 281 | (with-slots ((class %class) subclass slots) islots |
64fd357d MW |
282 | (let ((head (sod-class-chain-head class))) |
283 | (when (eq head (sod-class-chain-head subclass)) | |
284 | (sequence-output (stream sequencer) | |
285 | ((subclass :ichain (sod-class-chain-head class) :slots) | |
286 | (format stream " struct ~A ~A;~%" | |
287 | (islots-struct-tag class) | |
288 | (sod-class-nickname class)))))))) | |
1f1d88f5 MW |
289 | |
290 | ;;;-------------------------------------------------------------------------- | |
291 | ;;; Vtable structure. | |
292 | ||
1224dfb0 MW |
293 | (defmethod hook-output progn |
294 | ((method sod-method) (reason (eql :h)) sequencer) | |
4b8e5c03 | 295 | (with-slots ((class %class)) method |
ddee4bb1 MW |
296 | (sequence-output (stream sequencer) |
297 | ((class :methods) | |
298 | (let ((type (sod-method-function-type method))) | |
299 | (princ "extern " stream) | |
300 | (pprint-c-type (commentify-function-type type) stream | |
301 | (sod-method-function-name method)) | |
43073476 MW |
302 | (format stream ";~%"))) |
303 | ((class :methods :defs) | |
304 | (let* ((type (sod-method-type method)) | |
305 | (keys (and (typep type 'c-keyword-function-type) | |
306 | (c-function-keywords type)))) | |
307 | (when keys | |
308 | (format stream "struct ~A {~%~ | |
fd040f06 | 309 | ~{ unsigned ~A: 1;~%~}~ |
43073476 MW |
310 | };~2%" |
311 | (direct-method-suppliedp-struct-tag method) | |
312 | (mapcar #'argument-name keys)))))))) | |
ddee4bb1 | 313 | |
5b0a2bdb | 314 | (defmethod hook-output progn ((vtable vtable) (reason (eql :h)) sequencer) |
4b8e5c03 | 315 | (with-slots ((class %class) chain-head chain-tail) vtable |
ddee4bb1 MW |
316 | (when (eq class chain-tail) |
317 | (sequence-output (stream sequencer) | |
318 | :constraint ((class :vtables :start) | |
319 | (class :vtable chain-head :start) | |
320 | (class :vtable chain-head :slots) | |
321 | (class :vtable chain-head :end) | |
322 | (class :vtables :end)) | |
323 | ((class :vtable chain-head :start) | |
a07d8d00 | 324 | (format stream "/* Vtable structure. */~@ |
ddee4bb1 MW |
325 | struct ~A {~%" |
326 | (vtable-struct-tag chain-tail chain-head))) | |
327 | ((class :vtable chain-head :end) | |
c2438e62 MW |
328 | (format stream "};~2%") |
329 | (format stream "/* Union of equivalent superclass vtables. */~@ | |
330 | union ~A {~@ | |
331 | ~:{ struct ~A ~A;~%~}~ | |
332 | };~2%" | |
333 | (vtable-union-tag chain-tail chain-head) | |
334 | ||
335 | ;; As for the ichain union, make sure the most specific | |
336 | ;; class is first. | |
337 | (mapcar (lambda (super) | |
338 | (list (vtable-struct-tag super chain-head) | |
339 | (sod-class-nickname super))) | |
340 | (sod-class-chain chain-tail)))))) | |
1f1d88f5 | 341 | (sequence-output (stream sequencer) |
1f1d88f5 | 342 | ((class :vtable-externs) |
7c3bae74 | 343 | (format stream "~@<extern const union ~A ~2I~_~A;~:>~%" |
c2438e62 | 344 | (vtable-union-tag chain-tail chain-head) |
7c3bae74 | 345 | (vtable-name class chain-head)))))) |
1f1d88f5 | 346 | |
5b0a2bdb | 347 | (defmethod hook-output progn ((vtmsgs vtmsgs) (reason (eql :h)) sequencer) |
4b8e5c03 | 348 | (with-slots ((class %class) subclass chain-head chain-tail) vtmsgs |
64fd357d MW |
349 | (when (eq subclass chain-tail) |
350 | (sequence-output (stream sequencer) | |
351 | ((subclass :vtable chain-head :slots) | |
352 | (format stream " struct ~A ~A;~%" | |
353 | (vtmsgs-struct-tag subclass class) | |
354 | (sod-class-nickname class))))))) | |
1f1d88f5 | 355 | |
1224dfb0 MW |
356 | (defmethod hook-output progn |
357 | ((vtmsgs vtmsgs) (reason (eql 'vtmsgs)) sequencer) | |
1f1d88f5 | 358 | (when (vtmsgs-entries vtmsgs) |
4b8e5c03 | 359 | (with-slots ((class %class) subclass) vtmsgs |
1f1d88f5 MW |
360 | (sequence-output (stream sequencer) |
361 | :constraint ((subclass :vtmsgs :start) | |
362 | (subclass :vtmsgs class :start) | |
363 | (subclass :vtmsgs class :slots) | |
364 | (subclass :vtmsgs class :end) | |
365 | (subclass :vtmsgs :end)) | |
366 | ((subclass :vtmsgs class :start) | |
a07d8d00 | 367 | (format stream "/* Messages protocol from class ~A */~@ |
ddee4bb1 MW |
368 | struct ~A {~%" |
369 | class | |
370 | (vtmsgs-struct-tag subclass class))) | |
1f1d88f5 MW |
371 | ((subclass :vtmsgs class :end) |
372 | (format stream "};~2%")))))) | |
373 | ||
1224dfb0 MW |
374 | (defmethod hook-output progn |
375 | ((entry method-entry) (reason (eql 'vtmsgs)) sequencer) | |
ddee4bb1 MW |
376 | (let* ((method (method-entry-effective-method entry)) |
377 | (message (effective-method-message method)) | |
1f1d88f5 | 378 | (class (effective-method-class method)) |
9ec578d9 MW |
379 | (function-type (method-entry-function-type entry)) |
380 | (commented-type (commentify-function-type function-type)) | |
381 | (pointer-type (make-pointer-type commented-type))) | |
1f1d88f5 MW |
382 | (sequence-output (stream sequencer) |
383 | ((class :vtmsgs (sod-message-class message) :slots) | |
384 | (pprint-logical-block (stream nil :prefix " " :suffix ";") | |
b426ab51 | 385 | (pprint-c-type pointer-type stream (method-entry-slot-name entry))) |
1f1d88f5 MW |
386 | (terpri stream))))) |
387 | ||
1224dfb0 MW |
388 | (defmethod hook-output progn |
389 | ((cptr class-pointer) (reason (eql :h)) sequencer) | |
4b8e5c03 | 390 | (with-slots ((class %class) chain-head metaclass meta-chain-head) cptr |
64fd357d MW |
391 | (when (eq chain-head (sod-class-chain-head class)) |
392 | (sequence-output (stream sequencer) | |
393 | ((class :vtable chain-head :slots) | |
394 | (format stream " const ~A *~:[_class~;~:*_cls_~A~];~%" | |
395 | metaclass | |
396 | (and (sod-class-direct-superclasses meta-chain-head) | |
397 | (sod-class-nickname meta-chain-head)))))))) | |
1f1d88f5 | 398 | |
5b0a2bdb | 399 | (defmethod hook-output progn ((boff base-offset) (reason (eql :h)) sequencer) |
4b8e5c03 | 400 | (with-slots ((class %class) chain-head) boff |
64fd357d MW |
401 | (when (eq chain-head (sod-class-chain-head class)) |
402 | (sequence-output (stream sequencer) | |
403 | ((class :vtable chain-head :slots) | |
404 | (write-line " size_t _base;" stream)))))) | |
1f1d88f5 | 405 | |
1224dfb0 MW |
406 | (defmethod hook-output progn |
407 | ((choff chain-offset) (reason (eql :h)) sequencer) | |
4b8e5c03 | 408 | (with-slots ((class %class) chain-head target-head) choff |
64fd357d MW |
409 | (when (eq chain-head (sod-class-chain-head class)) |
410 | (sequence-output (stream sequencer) | |
411 | ((class :vtable chain-head :slots) | |
412 | (format stream " ptrdiff_t _off_~A;~%" | |
413 | (sod-class-nickname target-head))))))) | |
1f1d88f5 MW |
414 | |
415 | ;;;-------------------------------------------------------------------------- | |
3be8c2bf MW |
416 | ;;; Implementation output. |
417 | ||
6e2d4b52 | 418 | (export '*instance-class*) |
4b856491 MW |
419 | (defvar *instance-class* nil |
420 | "The class currently being output. | |
421 | ||
422 | This is bound during the `hook-output' traversal of a class layout for | |
423 | `:c' output, since some of the objects traversed actually `belong' to | |
424 | superclasses and there's no other way to find out what the reference class | |
425 | actually is. | |
426 | ||
427 | It may be bound at other times.") | |
3be8c2bf | 428 | |
5b0a2bdb | 429 | (defmethod hook-output progn ((class sod-class) (reason (eql :c)) sequencer) |
3be8c2bf MW |
430 | (sequence-output (stream sequencer) |
431 | ||
432 | :constraint | |
433 | ((:classes :start) | |
434 | (class :banner) | |
435 | (class :direct-methods :start) (class :direct-methods :end) | |
a07d8d00 | 436 | (class :effective-methods) |
3be8c2bf MW |
437 | (class :vtables :start) (class :vtables :end) |
438 | (class :object :prepare) (class :object :start) (class :object :end) | |
439 | (:classes :end)) | |
440 | ||
441 | ((class :banner) | |
442 | (banner (format nil "Class ~A" class) stream)) | |
443 | ||
444 | ((class :object :start) | |
445 | (format stream "~ | |
446 | /* The class object. */ | |
447 | const struct ~A ~A__classobj = {~%" | |
448 | (ilayout-struct-tag (sod-class-metaclass class)) | |
449 | class)) | |
450 | ((class :object :end) | |
451 | (format stream "};~2%"))) | |
452 | ||
453 | (let ((*instance-class* class)) | |
dea4d055 | 454 | (hook-output (sod-class-ilayout (sod-class-metaclass class)) |
6e2d4b52 | 455 | 'class sequencer))) |
3be8c2bf MW |
456 | |
457 | ;;;-------------------------------------------------------------------------- | |
9ec578d9 | 458 | ;;; Direct and effective methods. |
3be8c2bf | 459 | |
1224dfb0 MW |
460 | (defmethod hook-output progn |
461 | ((method delegating-direct-method) (reason (eql :c)) sequencer) | |
4b8e5c03 | 462 | (with-slots ((class %class) body) method |
3be8c2bf | 463 | (unless body |
dea4d055 | 464 | (return-from hook-output)) |
3be8c2bf MW |
465 | (sequence-output (stream sequencer) |
466 | ((class :direct-method method :start) | |
467 | (format stream "#define CALL_NEXT_METHOD (next_method(~{~A~^, ~}))~%" | |
468 | (mapcar #'argument-name | |
469 | (c-function-arguments (sod-method-next-method-type | |
470 | method))))) | |
471 | ((class :direct-method method :end) | |
472 | (format stream "#undef CALL_NEXT_METHOD~%"))))) | |
473 | ||
1224dfb0 MW |
474 | (defmethod hook-output progn |
475 | ((method sod-method) (reason (eql :c)) sequencer) | |
7de8c666 | 476 | (with-slots ((class %class) role body message) method |
3be8c2bf | 477 | (unless body |
dea4d055 | 478 | (return-from hook-output)) |
3be8c2bf MW |
479 | (sequence-output (stream sequencer) |
480 | :constraint ((class :direct-methods :start) | |
7de8c666 | 481 | (class :direct-method method :banner) |
3be8c2bf MW |
482 | (class :direct-method method :start) |
483 | (class :direct-method method :body) | |
484 | (class :direct-method method :end) | |
485 | (class :direct-methods :end)) | |
7de8c666 MW |
486 | ((class :direct-method method :banner) |
487 | (format-banner-comment stream "Direct ~@[~(~A~) ~]method ~:_~ | |
488 | on `~A.~A' ~:_defined by `~A'." | |
489 | role | |
490 | (sod-class-nickname | |
491 | (sod-message-class message)) | |
492 | (sod-message-name message) | |
493 | class) | |
494 | (fresh-line stream)) | |
3be8c2bf MW |
495 | ((class :direct-method method :body) |
496 | (pprint-c-type (sod-method-function-type method) | |
497 | stream | |
498 | (sod-method-function-name method)) | |
499 | (format stream "~&{~%") | |
500 | (write body :stream stream :pretty nil :escape nil) | |
501 | (format stream "~&}~%")) | |
502 | ((class :direct-method method :end) | |
503 | (terpri stream))))) | |
504 | ||
1224dfb0 MW |
505 | (defmethod hook-output progn |
506 | ((method basic-effective-method) (reason (eql :c)) sequencer) | |
4b8e5c03 | 507 | (with-slots ((class %class) functions) method |
dea4d055 MW |
508 | (sequence-output (stream sequencer) |
509 | ((class :effective-methods) | |
43073476 MW |
510 | (let* ((keys (effective-method-keywords method)) |
511 | (message (effective-method-message method)) | |
512 | (msg-class (sod-message-class message))) | |
513 | (when keys | |
514 | (format-banner-comment stream "Keyword argument structure ~:_~ | |
515 | for `~A.~A' ~:_on class `~A'." | |
516 | (sod-class-nickname msg-class) | |
517 | (sod-message-name message) | |
518 | class) | |
519 | (format stream "~&struct ~A {~%" | |
520 | (effective-method-keyword-struct-tag method)) | |
fd040f06 | 521 | (format stream "~{ unsigned ~A__suppliedp: 1;~%~}" |
43073476 MW |
522 | (mapcar #'argument-name keys)) |
523 | (dolist (key keys) | |
524 | (write-string " " stream) | |
525 | (pprint-c-type (argument-type key) stream (argument-name key)) | |
526 | (format stream ";~%")) | |
527 | (format stream "};~2%"))) | |
dea4d055 MW |
528 | (dolist (func functions) |
529 | (write func :stream stream :escape nil :circle nil)))))) | |
530 | ||
3be8c2bf | 531 | ;;;-------------------------------------------------------------------------- |
a07d8d00 MW |
532 | ;;; Vtables. |
533 | ||
5b0a2bdb | 534 | (defmethod hook-output progn ((vtable vtable) (reason (eql :c)) sequencer) |
4b8e5c03 | 535 | (with-slots ((class %class) chain-head chain-tail) vtable |
a07d8d00 MW |
536 | (sequence-output (stream sequencer) |
537 | :constraint ((class :vtables :start) | |
538 | (class :vtable chain-head :start) | |
539 | (class :vtable chain-head :end) | |
540 | (class :vtables :end)) | |
541 | ((class :vtable chain-head :start) | |
542 | (format stream "/* Vtable for ~A chain. */~@ | |
c2438e62 | 543 | const union ~A ~A = { {~%" |
a07d8d00 | 544 | chain-head |
c2438e62 | 545 | (vtable-union-tag chain-tail chain-head) |
9ec578d9 | 546 | (vtable-name class chain-head))) |
a07d8d00 | 547 | ((class :vtable chain-head :end) |
c2438e62 | 548 | (format stream "} };~2%"))))) |
a07d8d00 | 549 | |
1224dfb0 MW |
550 | (defmethod hook-output progn |
551 | ((cptr class-pointer) (reason (eql :c)) sequencer) | |
4b8e5c03 | 552 | (with-slots ((class %class) chain-head metaclass meta-chain-head) cptr |
a07d8d00 MW |
553 | (sequence-output (stream sequencer) |
554 | :constraint ((class :vtable chain-head :start) | |
555 | (class :vtable chain-head :class-pointer metaclass) | |
556 | (class :vtable chain-head :end)) | |
557 | ((class :vtable chain-head :class-pointer metaclass) | |
9ec578d9 MW |
558 | (format stream " /* ~21@A = */ &~A__classobj.~A.~A,~%" |
559 | (if (sod-class-direct-superclasses meta-chain-head) | |
560 | (format nil "_cls_~A" | |
561 | (sod-class-nickname meta-chain-head)) | |
562 | "_class") | |
fc5d9486 | 563 | class |
a07d8d00 MW |
564 | (sod-class-nickname meta-chain-head) |
565 | (sod-class-nickname metaclass)))))) | |
566 | ||
5b0a2bdb | 567 | (defmethod hook-output progn ((boff base-offset) (reason (eql :c)) sequencer) |
4b8e5c03 | 568 | (with-slots ((class %class) chain-head) boff |
a07d8d00 MW |
569 | (sequence-output (stream sequencer) |
570 | :constraint ((class :vtable chain-head :start) | |
571 | (class :vtable chain-head :base-offset) | |
572 | (class :vtable chain-head :end)) | |
573 | ((class :vtable chain-head :base-offset) | |
9ec578d9 MW |
574 | (format stream " /* ~21@A = */ offsetof(struct ~A, ~A),~%" |
575 | "_base" | |
a07d8d00 MW |
576 | (ilayout-struct-tag class) |
577 | (sod-class-nickname chain-head)))))) | |
578 | ||
1224dfb0 MW |
579 | (defmethod hook-output progn |
580 | ((choff chain-offset) (reason (eql :c)) sequencer) | |
4b8e5c03 | 581 | (with-slots ((class %class) chain-head target-head) choff |
a07d8d00 MW |
582 | (sequence-output (stream sequencer) |
583 | :constraint ((class :vtable chain-head :start) | |
584 | (class :vtable chain-head :chain-offset target-head) | |
585 | (class :vtable chain-head :end)) | |
586 | ((class :vtable chain-head :chain-offset target-head) | |
9ec578d9 MW |
587 | (format stream " /* ~21@A = */ SOD_OFFSETDIFF(struct ~A, ~A, ~A),~%" |
588 | (format nil "_off_~A" (sod-class-nickname target-head)) | |
a07d8d00 MW |
589 | (ilayout-struct-tag class) |
590 | (sod-class-nickname chain-head) | |
591 | (sod-class-nickname target-head)))))) | |
592 | ||
5b0a2bdb | 593 | (defmethod hook-output progn ((vtmsgs vtmsgs) (reason (eql :c)) sequencer) |
4b8e5c03 | 594 | (with-slots ((class %class) subclass chain-head) vtmsgs |
a07d8d00 MW |
595 | (sequence-output (stream sequencer) |
596 | :constraint ((subclass :vtable chain-head :start) | |
597 | (subclass :vtable chain-head :vtmsgs class :start) | |
598 | (subclass :vtable chain-head :vtmsgs class :slots) | |
599 | (subclass :vtable chain-head :vtmsgs class :end) | |
600 | (subclass :vtable chain-head :end)) | |
601 | ((subclass :vtable chain-head :vtmsgs class :start) | |
602 | (format stream " { /* Method entries for ~A messages. */~%" | |
603 | class)) | |
604 | ((subclass :vtable chain-head :vtmsgs class :end) | |
605 | (format stream " },~%"))))) | |
606 | ||
1224dfb0 MW |
607 | (defmethod hook-output progn |
608 | ((entry method-entry) (reason (eql :c)) sequencer) | |
4b8e5c03 | 609 | (with-slots ((method %method) chain-head chain-tail role) entry |
a07d8d00 MW |
610 | (let* ((message (effective-method-message method)) |
611 | (class (effective-method-class method)) | |
612 | (super (sod-message-class message))) | |
613 | (sequence-output (stream sequencer) | |
614 | ((class :vtable chain-head :vtmsgs super :slots) | |
9ec578d9 | 615 | (format stream " /* ~19@A = */ ~A,~%" |
b426ab51 MW |
616 | (method-entry-slot-name entry) |
617 | (method-entry-function-name method chain-head role))))))) | |
a07d8d00 MW |
618 | |
619 | ;;;-------------------------------------------------------------------------- | |
3be8c2bf MW |
620 | ;;; Filling in the class object. |
621 | ||
1224dfb0 MW |
622 | (defmethod hook-output progn |
623 | ((ichain ichain) (reason (eql 'class)) sequencer) | |
4b8e5c03 | 624 | (with-slots ((class %class) chain-head) ichain |
3be8c2bf MW |
625 | (sequence-output (stream sequencer) |
626 | :constraint ((*instance-class* :object :start) | |
627 | (*instance-class* :object chain-head :ichain :start) | |
628 | (*instance-class* :object chain-head :ichain :end) | |
629 | (*instance-class* :object :end)) | |
630 | ((*instance-class* :object chain-head :ichain :start) | |
631 | (format stream " { { /* ~A ichain */~%" | |
632 | (sod-class-nickname chain-head))) | |
633 | ((*instance-class* :object chain-head :ichain :end) | |
634 | (format stream " } },~%"))))) | |
635 | ||
1224dfb0 MW |
636 | (defmethod hook-output progn |
637 | ((islots islots) (reason (eql 'class)) sequencer) | |
4b8e5c03 | 638 | (with-slots ((class %class)) islots |
3be8c2bf MW |
639 | (let ((chain-head (sod-class-chain-head class))) |
640 | (sequence-output (stream sequencer) | |
641 | :constraint ((*instance-class* :object chain-head :ichain :start) | |
642 | (*instance-class* :object class :slots :start) | |
643 | (*instance-class* :object class :slots) | |
644 | (*instance-class* :object class :slots :end) | |
645 | (*instance-class* :object chain-head :ichain :end)) | |
646 | ((*instance-class* :object class :slots :start) | |
647 | (format stream " { /* Class ~A */~%" class)) | |
648 | ((*instance-class* :object class :slots :end) | |
649 | (format stream " },~%")))))) | |
650 | ||
1224dfb0 MW |
651 | (defmethod hook-output progn |
652 | ((vtptr vtable-pointer) (reason (eql 'class)) sequencer) | |
4b8e5c03 | 653 | (with-slots ((class %class) chain-head chain-tail) vtptr |
3be8c2bf MW |
654 | (sequence-output (stream sequencer) |
655 | :constraint ((*instance-class* :object chain-head :ichain :start) | |
656 | (*instance-class* :object chain-head :vtable) | |
657 | (*instance-class* :object chain-head :ichain :end)) | |
658 | ((*instance-class* :object chain-head :vtable) | |
c2438e62 MW |
659 | (format stream " /* ~17@A = */ &~A.~A,~%" |
660 | "_vt" | |
661 | (vtable-name class chain-head) | |
662 | (sod-class-nickname chain-tail)))))) | |
3be8c2bf | 663 | |
3be8c2bf MW |
664 | (defgeneric output-class-initializer (slot instance stream) |
665 | (:method ((slot sod-class-effective-slot) (instance sod-class) stream) | |
9ec578d9 MW |
666 | (let ((func (effective-slot-initializer-function slot)) |
667 | (direct-slot (effective-slot-direct-slot slot))) | |
3be8c2bf | 668 | (if func |
9ec578d9 MW |
669 | (format stream " /* ~15@A = */ ~A,~%" |
670 | (sod-slot-name direct-slot) | |
671 | (funcall func instance)) | |
3be8c2bf MW |
672 | (call-next-method)))) |
673 | (:method ((slot effective-slot) (instance sod-class) stream) | |
9ec578d9 MW |
674 | (let ((init (find-class-initializer slot instance)) |
675 | (direct-slot (effective-slot-direct-slot slot))) | |
a888e3ac MW |
676 | (format stream " /* ~15@A = */ ~A,~%" |
677 | (sod-slot-name direct-slot) | |
678 | (sod-initializer-value init))))) | |
3be8c2bf | 679 | |
1224dfb0 MW |
680 | (defmethod hook-output progn |
681 | ((slot sod-class-effective-slot) (reason (eql 'class)) sequencer) | |
3be8c2bf MW |
682 | (let ((instance *instance-class*) |
683 | (func (effective-slot-prepare-function slot))) | |
684 | (when func | |
685 | (sequence-output (stream sequencer) | |
686 | ((instance :object :prepare) | |
687 | (funcall func instance stream)))))) | |
688 | ||
1224dfb0 MW |
689 | (defmethod hook-output progn |
690 | ((slot effective-slot) (reason (eql 'class)) sequencer) | |
4b8e5c03 | 691 | (with-slots ((class %class) (dslot slot)) slot |
3be8c2bf MW |
692 | (let ((instance *instance-class*) |
693 | (super (sod-slot-class dslot))) | |
694 | (sequence-output (stream sequencer) | |
695 | ((instance :object super :slots) | |
696 | (output-class-initializer slot instance stream)))))) | |
697 | ||
1f1d88f5 | 698 | ;;;----- That's all, folks -------------------------------------------------- |