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