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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 | ||
6e2d4b52 MW |
28 | ;;;-------------------------------------------------------------------------- |
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 | ||
1f1d88f5 MW |
56 | ;;;-------------------------------------------------------------------------- |
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 | ||
1f1d88f5 MW |
64 | :constraint |
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;~@ | |
ddee4bb1 MW |
97 | #define ~:*~A__class (&~:*~A__classobj.~A.~A)~2%" |
98 | (ilayout-struct-tag metaclass) class | |
99 | (sod-class-nickname (sod-class-chain-head metaroot)) | |
100 | (sod-class-nickname metaroot))))) | |
1f1d88f5 MW |
101 | |
102 | ;; Maybe generate an islots structure. | |
103 | (when (sod-class-slots class) | |
104 | (dolist (slot (sod-class-slots class)) | |
dea4d055 | 105 | (hook-output slot 'islots sequencer)) |
1f1d88f5 MW |
106 | (sequence-output (stream sequencer) |
107 | ((class :islots :start) | |
a07d8d00 | 108 | (format stream "/* Instance slots. */~@ |
ddee4bb1 MW |
109 | struct ~A {~%" |
110 | (islots-struct-tag class))) | |
1f1d88f5 MW |
111 | ((class :islots :end) |
112 | (format stream "};~2%")))) | |
113 | ||
114 | ;; Declare the direct methods. | |
115 | (when (sod-class-methods class) | |
1f1d88f5 | 116 | (sequence-output (stream sequencer) |
ddee4bb1 MW |
117 | ((class :methods :start) |
118 | (format stream "/* Direct methods. */~%")) | |
119 | ((class :methods :end) | |
1f1d88f5 MW |
120 | (terpri stream)))) |
121 | ||
122 | ;; Provide upcast macros which do the right thing. | |
123 | (when (sod-class-direct-superclasses class) | |
124 | (sequence-output (stream sequencer) | |
125 | ((class :conversions) | |
126 | (let ((chain-head (sod-class-chain-head class))) | |
ddee4bb1 | 127 | (format stream "/* Conversion macros. */~%") |
1f1d88f5 MW |
128 | (dolist (super (cdr (sod-class-precedence-list class))) |
129 | (let ((super-head (sod-class-chain-head super))) | |
bb172d53 MW |
130 | (format stream "#define ~:@(~A__CONV_~A~)(_obj) ((~A *)~ |
131 | ~:[SOD_XCHAIN(~A, (_obj))~;(_obj)~])~%" | |
1f1d88f5 MW |
132 | class (sod-class-nickname super) super |
133 | (eq chain-head super-head) | |
ddee4bb1 MW |
134 | (sod-class-nickname super-head)))) |
135 | (terpri stream))))) | |
1f1d88f5 | 136 | |
6bc944c3 MW |
137 | ;; Provide convenience macros for sending the newly defined messages. (The |
138 | ;; macros work on all subclasses too.) | |
139 | ;; | |
140 | ;; We need each message's method entry type for this, so we need to dig it | |
141 | ;; out of the vtmsgs structure. Indeed, the vtmsgs for this class contains | |
142 | ;; entries for precisely the messages we want to make macros for. | |
43073476 MW |
143 | (when (some (lambda (message) |
144 | (or (keyword-message-p message) | |
145 | (varargs-message-p message))) | |
146 | (sod-class-messages class)) | |
e674612e MW |
147 | (one-off-output 'varargs-macros sequencer :early-decls |
148 | (lambda (stream) | |
149 | (format stream | |
150 | "~%SOD__VARARGS_MACROS_PREAMBLE~%")))) | |
6bc944c3 MW |
151 | (when (sod-class-messages class) |
152 | (sequence-output (stream sequencer) | |
153 | ((class :message-macros) | |
154 | (let* ((vtable (find (sod-class-chain-head class) | |
155 | (sod-class-vtables class) | |
156 | :key #'vtable-chain-head)) | |
157 | (vtmsgs (find-if (lambda (item) | |
158 | (and (typep item 'vtmsgs) | |
159 | (eql (vtmsgs-class item) class))) | |
160 | (vtable-body vtable)))) | |
161 | (format stream "/* Message invocation macros. */~%") | |
6bc944c3 MW |
162 | (dolist (entry (vtmsgs-entries vtmsgs)) |
163 | (let* ((type (method-entry-function-type entry)) | |
164 | (args (c-function-arguments type)) | |
6bc944c3 MW |
165 | (in-names nil) (out-names nil) (varargsp nil) (me "me")) |
166 | (do ((args args (cdr args))) | |
167 | ((endp args)) | |
b426ab51 | 168 | (let* ((raw-name (princ-to-string (argument-name (car args)))) |
6bc944c3 MW |
169 | (name (if (find raw-name |
170 | (list "_vt" | |
171 | (sod-class-nickname class) | |
b426ab51 | 172 | (method-entry-slot-name entry)) |
6bc944c3 MW |
173 | :test #'string=) |
174 | (format nil "sod__a_~A" raw-name) | |
175 | raw-name))) | |
176 | (cond ((and (cdr args) (eq (cadr args) :ellipsis)) | |
177 | (setf varargsp t) | |
68a4f8c9 | 178 | (unless in-names (setf me "SOD__CAR(__VA_ARGS__)")) |
6bc944c3 MW |
179 | (push (format nil "/*~A*/ ..." name) in-names) |
180 | (push "__VA_ARGS__" out-names) | |
181 | (return)) | |
182 | (t | |
183 | (push name in-names) | |
184 | (push name out-names))))) | |
185 | (when varargsp | |
e674612e | 186 | (format stream "#ifdef SOD__HAVE_VARARGS_MACROS~%")) |
6bc944c3 MW |
187 | (format stream "#define ~A(~{~A~^, ~}) ~ |
188 | ~A->_vt->~A.~A(~{~A~^, ~})~%" | |
b426ab51 | 189 | (message-macro-name class entry) |
6bc944c3 MW |
190 | (nreverse in-names) |
191 | me | |
192 | (sod-class-nickname class) | |
b426ab51 | 193 | (method-entry-slot-name entry) |
6bc944c3 MW |
194 | (nreverse out-names)) |
195 | (when varargsp | |
196 | (format stream "#endif~%")))) | |
197 | (terpri stream))))) | |
198 | ||
1f1d88f5 | 199 | ;; Generate vtmsgs structure for all superclasses. |
6e2d4b52 | 200 | (hook-output (car (sod-class-vtables class)) 'vtmsgs sequencer)) |
1f1d88f5 MW |
201 | |
202 | ;;;-------------------------------------------------------------------------- | |
203 | ;;; Instance structure. | |
204 | ||
1224dfb0 MW |
205 | (defmethod hook-output progn |
206 | ((slot sod-slot) (reason (eql 'islots)) sequencer) | |
1f1d88f5 MW |
207 | (sequence-output (stream sequencer) |
208 | (((sod-slot-class slot) :islots :slots) | |
209 | (pprint-logical-block (stream nil :prefix " " :suffix ";") | |
210 | (pprint-c-type (sod-slot-type slot) stream (sod-slot-name slot))) | |
211 | (terpri stream)))) | |
212 | ||
5b0a2bdb | 213 | (defmethod hook-output progn ((ilayout ilayout) (reason (eql :h)) sequencer) |
4b8e5c03 | 214 | (with-slots ((class %class) ichains) ilayout |
1f1d88f5 MW |
215 | (sequence-output (stream sequencer) |
216 | ((class :ilayout :start) | |
a07d8d00 | 217 | (format stream "/* Instance layout. */~@ |
ddee4bb1 MW |
218 | struct ~A {~%" |
219 | (ilayout-struct-tag class))) | |
1f1d88f5 MW |
220 | ((class :ilayout :end) |
221 | (format stream "};~2%"))) | |
222 | (dolist (ichain ichains) | |
dea4d055 | 223 | (hook-output ichain 'ilayout sequencer)))) |
1f1d88f5 | 224 | |
5b0a2bdb | 225 | (defmethod hook-output progn ((ichain ichain) (reason (eql :h)) sequencer) |
4b8e5c03 | 226 | (with-slots ((class %class) chain-head chain-tail) ichain |
ddee4bb1 MW |
227 | (when (eq class chain-tail) |
228 | (sequence-output (stream sequencer) | |
229 | :constraint ((class :ichains :start) | |
230 | (class :ichain chain-head :start) | |
231 | (class :ichain chain-head :slots) | |
232 | (class :ichain chain-head :end) | |
233 | (class :ichains :end)) | |
234 | ((class :ichain chain-head :start) | |
a07d8d00 | 235 | (format stream "/* Instance chain structure. */~@ |
ddee4bb1 MW |
236 | struct ~A {~%" |
237 | (ichain-struct-tag chain-tail chain-head))) | |
238 | ((class :ichain chain-head :end) | |
239 | (format stream "};~2%") | |
a07d8d00 MW |
240 | (format stream "/* Union of equivalent superclass chains. */~@ |
241 | union ~A {~@ | |
ddee4bb1 MW |
242 | ~:{ struct ~A ~A;~%~}~ |
243 | };~2%" | |
244 | (ichain-union-tag chain-tail chain-head) | |
dea4d055 MW |
245 | |
246 | ;; Make sure the most specific class is first: only the | |
247 | ;; first element of a union can be statically initialized in | |
248 | ;; C90. | |
ddee4bb1 MW |
249 | (mapcar (lambda (super) |
250 | (list (ichain-struct-tag super chain-head) | |
251 | (sod-class-nickname super))) | |
252 | (sod-class-chain chain-tail)))))))) | |
1f1d88f5 | 253 | |
1224dfb0 MW |
254 | (defmethod hook-output progn |
255 | ((ichain ichain) (reason (eql 'ilayout)) sequencer) | |
4b8e5c03 | 256 | (with-slots ((class %class) chain-head chain-tail) ichain |
1f1d88f5 MW |
257 | (sequence-output (stream sequencer) |
258 | ((class :ilayout :slots) | |
ddee4bb1 MW |
259 | (format stream " union ~A ~A;~%" |
260 | (ichain-union-tag chain-tail chain-head) | |
1f1d88f5 MW |
261 | (sod-class-nickname chain-head)))))) |
262 | ||
5b0a2bdb MW |
263 | (defmethod hook-output progn ((vtptr vtable-pointer) |
264 | (reason (eql :h)) | |
265 | sequencer) | |
4b8e5c03 | 266 | (with-slots ((class %class) chain-head chain-tail) vtptr |
64fd357d MW |
267 | (when (eq class chain-tail) |
268 | (sequence-output (stream sequencer) | |
269 | ((class :ichain chain-head :slots) | |
270 | (format stream " const struct ~A *_vt;~%" | |
271 | (vtable-struct-tag chain-tail chain-head))))))) | |
1f1d88f5 | 272 | |
5b0a2bdb | 273 | (defmethod hook-output progn ((islots islots) (reason (eql :h)) sequencer) |
4b8e5c03 | 274 | (with-slots ((class %class) subclass slots) islots |
64fd357d MW |
275 | (let ((head (sod-class-chain-head class))) |
276 | (when (eq head (sod-class-chain-head subclass)) | |
277 | (sequence-output (stream sequencer) | |
278 | ((subclass :ichain (sod-class-chain-head class) :slots) | |
279 | (format stream " struct ~A ~A;~%" | |
280 | (islots-struct-tag class) | |
281 | (sod-class-nickname class)))))))) | |
1f1d88f5 MW |
282 | |
283 | ;;;-------------------------------------------------------------------------- | |
284 | ;;; Vtable structure. | |
285 | ||
1224dfb0 MW |
286 | (defmethod hook-output progn |
287 | ((method sod-method) (reason (eql :h)) sequencer) | |
4b8e5c03 | 288 | (with-slots ((class %class)) method |
ddee4bb1 MW |
289 | (sequence-output (stream sequencer) |
290 | ((class :methods) | |
291 | (let ((type (sod-method-function-type method))) | |
292 | (princ "extern " stream) | |
293 | (pprint-c-type (commentify-function-type type) stream | |
294 | (sod-method-function-name method)) | |
43073476 MW |
295 | (format stream ";~%"))) |
296 | ((class :methods :defs) | |
297 | (let* ((type (sod-method-type method)) | |
298 | (keys (and (typep type 'c-keyword-function-type) | |
299 | (c-function-keywords type)))) | |
300 | (when keys | |
301 | (format stream "struct ~A {~%~ | |
302 | ~{ unsigned ~A : 1;~%~}~ | |
303 | };~2%" | |
304 | (direct-method-suppliedp-struct-tag method) | |
305 | (mapcar #'argument-name keys)))))))) | |
ddee4bb1 | 306 | |
5b0a2bdb | 307 | (defmethod hook-output progn ((vtable vtable) (reason (eql :h)) sequencer) |
4b8e5c03 | 308 | (with-slots ((class %class) chain-head chain-tail) vtable |
ddee4bb1 MW |
309 | (when (eq class chain-tail) |
310 | (sequence-output (stream sequencer) | |
311 | :constraint ((class :vtables :start) | |
312 | (class :vtable chain-head :start) | |
313 | (class :vtable chain-head :slots) | |
314 | (class :vtable chain-head :end) | |
315 | (class :vtables :end)) | |
316 | ((class :vtable chain-head :start) | |
a07d8d00 | 317 | (format stream "/* Vtable structure. */~@ |
ddee4bb1 MW |
318 | struct ~A {~%" |
319 | (vtable-struct-tag chain-tail chain-head))) | |
320 | ((class :vtable chain-head :end) | |
c2438e62 MW |
321 | (format stream "};~2%") |
322 | (format stream "/* Union of equivalent superclass vtables. */~@ | |
323 | union ~A {~@ | |
324 | ~:{ struct ~A ~A;~%~}~ | |
325 | };~2%" | |
326 | (vtable-union-tag chain-tail chain-head) | |
327 | ||
328 | ;; As for the ichain union, make sure the most specific | |
329 | ;; class is first. | |
330 | (mapcar (lambda (super) | |
331 | (list (vtable-struct-tag super chain-head) | |
332 | (sod-class-nickname super))) | |
333 | (sod-class-chain chain-tail)))))) | |
1f1d88f5 | 334 | (sequence-output (stream sequencer) |
1f1d88f5 | 335 | ((class :vtable-externs) |
7c3bae74 | 336 | (format stream "~@<extern const union ~A ~2I~_~A;~:>~%" |
c2438e62 | 337 | (vtable-union-tag chain-tail chain-head) |
7c3bae74 | 338 | (vtable-name class chain-head)))))) |
1f1d88f5 | 339 | |
5b0a2bdb | 340 | (defmethod hook-output progn ((vtmsgs vtmsgs) (reason (eql :h)) sequencer) |
4b8e5c03 | 341 | (with-slots ((class %class) subclass chain-head chain-tail) vtmsgs |
64fd357d MW |
342 | (when (eq subclass chain-tail) |
343 | (sequence-output (stream sequencer) | |
344 | ((subclass :vtable chain-head :slots) | |
345 | (format stream " struct ~A ~A;~%" | |
346 | (vtmsgs-struct-tag subclass class) | |
347 | (sod-class-nickname class))))))) | |
1f1d88f5 | 348 | |
1224dfb0 MW |
349 | (defmethod hook-output progn |
350 | ((vtmsgs vtmsgs) (reason (eql 'vtmsgs)) sequencer) | |
1f1d88f5 | 351 | (when (vtmsgs-entries vtmsgs) |
4b8e5c03 | 352 | (with-slots ((class %class) subclass) vtmsgs |
1f1d88f5 MW |
353 | (sequence-output (stream sequencer) |
354 | :constraint ((subclass :vtmsgs :start) | |
355 | (subclass :vtmsgs class :start) | |
356 | (subclass :vtmsgs class :slots) | |
357 | (subclass :vtmsgs class :end) | |
358 | (subclass :vtmsgs :end)) | |
359 | ((subclass :vtmsgs class :start) | |
a07d8d00 | 360 | (format stream "/* Messages protocol from class ~A */~@ |
ddee4bb1 MW |
361 | struct ~A {~%" |
362 | class | |
363 | (vtmsgs-struct-tag subclass class))) | |
1f1d88f5 MW |
364 | ((subclass :vtmsgs class :end) |
365 | (format stream "};~2%")))))) | |
366 | ||
1224dfb0 MW |
367 | (defmethod hook-output progn |
368 | ((entry method-entry) (reason (eql 'vtmsgs)) sequencer) | |
ddee4bb1 MW |
369 | (let* ((method (method-entry-effective-method entry)) |
370 | (message (effective-method-message method)) | |
1f1d88f5 | 371 | (class (effective-method-class method)) |
9ec578d9 MW |
372 | (function-type (method-entry-function-type entry)) |
373 | (commented-type (commentify-function-type function-type)) | |
374 | (pointer-type (make-pointer-type commented-type))) | |
1f1d88f5 MW |
375 | (sequence-output (stream sequencer) |
376 | ((class :vtmsgs (sod-message-class message) :slots) | |
377 | (pprint-logical-block (stream nil :prefix " " :suffix ";") | |
b426ab51 | 378 | (pprint-c-type pointer-type stream (method-entry-slot-name entry))) |
1f1d88f5 MW |
379 | (terpri stream))))) |
380 | ||
1224dfb0 MW |
381 | (defmethod hook-output progn |
382 | ((cptr class-pointer) (reason (eql :h)) sequencer) | |
4b8e5c03 | 383 | (with-slots ((class %class) chain-head metaclass meta-chain-head) cptr |
64fd357d MW |
384 | (when (eq chain-head (sod-class-chain-head class)) |
385 | (sequence-output (stream sequencer) | |
386 | ((class :vtable chain-head :slots) | |
387 | (format stream " const ~A *~:[_class~;~:*_cls_~A~];~%" | |
388 | metaclass | |
389 | (and (sod-class-direct-superclasses meta-chain-head) | |
390 | (sod-class-nickname meta-chain-head)))))))) | |
1f1d88f5 | 391 | |
5b0a2bdb | 392 | (defmethod hook-output progn ((boff base-offset) (reason (eql :h)) sequencer) |
4b8e5c03 | 393 | (with-slots ((class %class) chain-head) boff |
64fd357d MW |
394 | (when (eq chain-head (sod-class-chain-head class)) |
395 | (sequence-output (stream sequencer) | |
396 | ((class :vtable chain-head :slots) | |
397 | (write-line " size_t _base;" stream)))))) | |
1f1d88f5 | 398 | |
1224dfb0 MW |
399 | (defmethod hook-output progn |
400 | ((choff chain-offset) (reason (eql :h)) sequencer) | |
4b8e5c03 | 401 | (with-slots ((class %class) chain-head target-head) choff |
64fd357d MW |
402 | (when (eq chain-head (sod-class-chain-head class)) |
403 | (sequence-output (stream sequencer) | |
404 | ((class :vtable chain-head :slots) | |
405 | (format stream " ptrdiff_t _off_~A;~%" | |
406 | (sod-class-nickname target-head))))))) | |
1f1d88f5 | 407 | |
3be8c2bf MW |
408 | ;;;-------------------------------------------------------------------------- |
409 | ;;; Implementation output. | |
410 | ||
6e2d4b52 | 411 | (export '*instance-class*) |
4b856491 MW |
412 | (defvar *instance-class* nil |
413 | "The class currently being output. | |
414 | ||
415 | This is bound during the `hook-output' traversal of a class layout for | |
416 | `:c' output, since some of the objects traversed actually `belong' to | |
417 | superclasses and there's no other way to find out what the reference class | |
418 | actually is. | |
419 | ||
420 | It may be bound at other times.") | |
3be8c2bf | 421 | |
5b0a2bdb | 422 | (defmethod hook-output progn ((class sod-class) (reason (eql :c)) sequencer) |
3be8c2bf MW |
423 | (sequence-output (stream sequencer) |
424 | ||
425 | :constraint | |
426 | ((:classes :start) | |
427 | (class :banner) | |
428 | (class :direct-methods :start) (class :direct-methods :end) | |
a07d8d00 | 429 | (class :effective-methods) |
3be8c2bf MW |
430 | (class :vtables :start) (class :vtables :end) |
431 | (class :object :prepare) (class :object :start) (class :object :end) | |
432 | (:classes :end)) | |
433 | ||
434 | ((class :banner) | |
435 | (banner (format nil "Class ~A" class) stream)) | |
436 | ||
437 | ((class :object :start) | |
438 | (format stream "~ | |
439 | /* The class object. */ | |
440 | const struct ~A ~A__classobj = {~%" | |
441 | (ilayout-struct-tag (sod-class-metaclass class)) | |
442 | class)) | |
443 | ((class :object :end) | |
444 | (format stream "};~2%"))) | |
445 | ||
446 | (let ((*instance-class* class)) | |
dea4d055 | 447 | (hook-output (sod-class-ilayout (sod-class-metaclass class)) |
6e2d4b52 | 448 | 'class sequencer))) |
3be8c2bf MW |
449 | |
450 | ;;;-------------------------------------------------------------------------- | |
9ec578d9 | 451 | ;;; Direct and effective methods. |
3be8c2bf | 452 | |
1224dfb0 MW |
453 | (defmethod hook-output progn |
454 | ((method delegating-direct-method) (reason (eql :c)) sequencer) | |
4b8e5c03 | 455 | (with-slots ((class %class) body) method |
3be8c2bf | 456 | (unless body |
dea4d055 | 457 | (return-from hook-output)) |
3be8c2bf MW |
458 | (sequence-output (stream sequencer) |
459 | ((class :direct-method method :start) | |
460 | (format stream "#define CALL_NEXT_METHOD (next_method(~{~A~^, ~}))~%" | |
461 | (mapcar #'argument-name | |
462 | (c-function-arguments (sod-method-next-method-type | |
463 | method))))) | |
464 | ((class :direct-method method :end) | |
465 | (format stream "#undef CALL_NEXT_METHOD~%"))))) | |
466 | ||
1224dfb0 MW |
467 | (defmethod hook-output progn |
468 | ((method sod-method) (reason (eql :c)) sequencer) | |
7de8c666 | 469 | (with-slots ((class %class) role body message) method |
3be8c2bf | 470 | (unless body |
dea4d055 | 471 | (return-from hook-output)) |
3be8c2bf MW |
472 | (sequence-output (stream sequencer) |
473 | :constraint ((class :direct-methods :start) | |
7de8c666 | 474 | (class :direct-method method :banner) |
3be8c2bf MW |
475 | (class :direct-method method :start) |
476 | (class :direct-method method :body) | |
477 | (class :direct-method method :end) | |
478 | (class :direct-methods :end)) | |
7de8c666 MW |
479 | ((class :direct-method method :banner) |
480 | (format-banner-comment stream "Direct ~@[~(~A~) ~]method ~:_~ | |
481 | on `~A.~A' ~:_defined by `~A'." | |
482 | role | |
483 | (sod-class-nickname | |
484 | (sod-message-class message)) | |
485 | (sod-message-name message) | |
486 | class) | |
487 | (fresh-line stream)) | |
3be8c2bf MW |
488 | ((class :direct-method method :body) |
489 | (pprint-c-type (sod-method-function-type method) | |
490 | stream | |
491 | (sod-method-function-name method)) | |
492 | (format stream "~&{~%") | |
493 | (write body :stream stream :pretty nil :escape nil) | |
494 | (format stream "~&}~%")) | |
495 | ((class :direct-method method :end) | |
496 | (terpri stream))))) | |
497 | ||
1224dfb0 MW |
498 | (defmethod hook-output progn |
499 | ((method basic-effective-method) (reason (eql :c)) sequencer) | |
4b8e5c03 | 500 | (with-slots ((class %class) functions) method |
dea4d055 MW |
501 | (sequence-output (stream sequencer) |
502 | ((class :effective-methods) | |
43073476 MW |
503 | (let* ((keys (effective-method-keywords method)) |
504 | (message (effective-method-message method)) | |
505 | (msg-class (sod-message-class message))) | |
506 | (when keys | |
507 | (format-banner-comment stream "Keyword argument structure ~:_~ | |
508 | for `~A.~A' ~:_on class `~A'." | |
509 | (sod-class-nickname msg-class) | |
510 | (sod-message-name message) | |
511 | class) | |
512 | (format stream "~&struct ~A {~%" | |
513 | (effective-method-keyword-struct-tag method)) | |
514 | (format stream "~{ unsigned ~A__suppliedp : 1;~%~}" | |
515 | (mapcar #'argument-name keys)) | |
516 | (dolist (key keys) | |
517 | (write-string " " stream) | |
518 | (pprint-c-type (argument-type key) stream (argument-name key)) | |
519 | (format stream ";~%")) | |
520 | (format stream "};~2%"))) | |
dea4d055 MW |
521 | (dolist (func functions) |
522 | (write func :stream stream :escape nil :circle nil)))))) | |
523 | ||
a07d8d00 MW |
524 | ;;;-------------------------------------------------------------------------- |
525 | ;;; Vtables. | |
526 | ||
5b0a2bdb | 527 | (defmethod hook-output progn ((vtable vtable) (reason (eql :c)) sequencer) |
4b8e5c03 | 528 | (with-slots ((class %class) chain-head chain-tail) vtable |
a07d8d00 MW |
529 | (sequence-output (stream sequencer) |
530 | :constraint ((class :vtables :start) | |
531 | (class :vtable chain-head :start) | |
532 | (class :vtable chain-head :end) | |
533 | (class :vtables :end)) | |
534 | ((class :vtable chain-head :start) | |
535 | (format stream "/* Vtable for ~A chain. */~@ | |
c2438e62 | 536 | const union ~A ~A = { {~%" |
a07d8d00 | 537 | chain-head |
c2438e62 | 538 | (vtable-union-tag chain-tail chain-head) |
9ec578d9 | 539 | (vtable-name class chain-head))) |
a07d8d00 | 540 | ((class :vtable chain-head :end) |
c2438e62 | 541 | (format stream "} };~2%"))))) |
a07d8d00 | 542 | |
1224dfb0 MW |
543 | (defmethod hook-output progn |
544 | ((cptr class-pointer) (reason (eql :c)) sequencer) | |
4b8e5c03 | 545 | (with-slots ((class %class) chain-head metaclass meta-chain-head) cptr |
a07d8d00 MW |
546 | (sequence-output (stream sequencer) |
547 | :constraint ((class :vtable chain-head :start) | |
548 | (class :vtable chain-head :class-pointer metaclass) | |
549 | (class :vtable chain-head :end)) | |
550 | ((class :vtable chain-head :class-pointer metaclass) | |
9ec578d9 MW |
551 | (format stream " /* ~21@A = */ &~A__classobj.~A.~A,~%" |
552 | (if (sod-class-direct-superclasses meta-chain-head) | |
553 | (format nil "_cls_~A" | |
554 | (sod-class-nickname meta-chain-head)) | |
555 | "_class") | |
fc5d9486 | 556 | class |
a07d8d00 MW |
557 | (sod-class-nickname meta-chain-head) |
558 | (sod-class-nickname metaclass)))))) | |
559 | ||
5b0a2bdb | 560 | (defmethod hook-output progn ((boff base-offset) (reason (eql :c)) sequencer) |
4b8e5c03 | 561 | (with-slots ((class %class) chain-head) boff |
a07d8d00 MW |
562 | (sequence-output (stream sequencer) |
563 | :constraint ((class :vtable chain-head :start) | |
564 | (class :vtable chain-head :base-offset) | |
565 | (class :vtable chain-head :end)) | |
566 | ((class :vtable chain-head :base-offset) | |
9ec578d9 MW |
567 | (format stream " /* ~21@A = */ offsetof(struct ~A, ~A),~%" |
568 | "_base" | |
a07d8d00 MW |
569 | (ilayout-struct-tag class) |
570 | (sod-class-nickname chain-head)))))) | |
571 | ||
1224dfb0 MW |
572 | (defmethod hook-output progn |
573 | ((choff chain-offset) (reason (eql :c)) sequencer) | |
4b8e5c03 | 574 | (with-slots ((class %class) chain-head target-head) choff |
a07d8d00 MW |
575 | (sequence-output (stream sequencer) |
576 | :constraint ((class :vtable chain-head :start) | |
577 | (class :vtable chain-head :chain-offset target-head) | |
578 | (class :vtable chain-head :end)) | |
579 | ((class :vtable chain-head :chain-offset target-head) | |
9ec578d9 MW |
580 | (format stream " /* ~21@A = */ SOD_OFFSETDIFF(struct ~A, ~A, ~A),~%" |
581 | (format nil "_off_~A" (sod-class-nickname target-head)) | |
a07d8d00 MW |
582 | (ilayout-struct-tag class) |
583 | (sod-class-nickname chain-head) | |
584 | (sod-class-nickname target-head)))))) | |
585 | ||
5b0a2bdb | 586 | (defmethod hook-output progn ((vtmsgs vtmsgs) (reason (eql :c)) sequencer) |
4b8e5c03 | 587 | (with-slots ((class %class) subclass chain-head) vtmsgs |
a07d8d00 MW |
588 | (sequence-output (stream sequencer) |
589 | :constraint ((subclass :vtable chain-head :start) | |
590 | (subclass :vtable chain-head :vtmsgs class :start) | |
591 | (subclass :vtable chain-head :vtmsgs class :slots) | |
592 | (subclass :vtable chain-head :vtmsgs class :end) | |
593 | (subclass :vtable chain-head :end)) | |
594 | ((subclass :vtable chain-head :vtmsgs class :start) | |
595 | (format stream " { /* Method entries for ~A messages. */~%" | |
596 | class)) | |
597 | ((subclass :vtable chain-head :vtmsgs class :end) | |
598 | (format stream " },~%"))))) | |
599 | ||
1224dfb0 MW |
600 | (defmethod hook-output progn |
601 | ((entry method-entry) (reason (eql :c)) sequencer) | |
4b8e5c03 | 602 | (with-slots ((method %method) chain-head chain-tail role) entry |
a07d8d00 MW |
603 | (let* ((message (effective-method-message method)) |
604 | (class (effective-method-class method)) | |
605 | (super (sod-message-class message))) | |
606 | (sequence-output (stream sequencer) | |
607 | ((class :vtable chain-head :vtmsgs super :slots) | |
9ec578d9 | 608 | (format stream " /* ~19@A = */ ~A,~%" |
b426ab51 MW |
609 | (method-entry-slot-name entry) |
610 | (method-entry-function-name method chain-head role))))))) | |
a07d8d00 | 611 | |
3be8c2bf MW |
612 | ;;;-------------------------------------------------------------------------- |
613 | ;;; Filling in the class object. | |
614 | ||
1224dfb0 MW |
615 | (defmethod hook-output progn |
616 | ((ichain ichain) (reason (eql 'class)) sequencer) | |
4b8e5c03 | 617 | (with-slots ((class %class) chain-head) ichain |
3be8c2bf MW |
618 | (sequence-output (stream sequencer) |
619 | :constraint ((*instance-class* :object :start) | |
620 | (*instance-class* :object chain-head :ichain :start) | |
621 | (*instance-class* :object chain-head :ichain :end) | |
622 | (*instance-class* :object :end)) | |
623 | ((*instance-class* :object chain-head :ichain :start) | |
624 | (format stream " { { /* ~A ichain */~%" | |
625 | (sod-class-nickname chain-head))) | |
626 | ((*instance-class* :object chain-head :ichain :end) | |
627 | (format stream " } },~%"))))) | |
628 | ||
1224dfb0 MW |
629 | (defmethod hook-output progn |
630 | ((islots islots) (reason (eql 'class)) sequencer) | |
4b8e5c03 | 631 | (with-slots ((class %class)) islots |
3be8c2bf MW |
632 | (let ((chain-head (sod-class-chain-head class))) |
633 | (sequence-output (stream sequencer) | |
634 | :constraint ((*instance-class* :object chain-head :ichain :start) | |
635 | (*instance-class* :object class :slots :start) | |
636 | (*instance-class* :object class :slots) | |
637 | (*instance-class* :object class :slots :end) | |
638 | (*instance-class* :object chain-head :ichain :end)) | |
639 | ((*instance-class* :object class :slots :start) | |
640 | (format stream " { /* Class ~A */~%" class)) | |
641 | ((*instance-class* :object class :slots :end) | |
642 | (format stream " },~%")))))) | |
643 | ||
1224dfb0 MW |
644 | (defmethod hook-output progn |
645 | ((vtptr vtable-pointer) (reason (eql 'class)) sequencer) | |
4b8e5c03 | 646 | (with-slots ((class %class) chain-head chain-tail) vtptr |
3be8c2bf MW |
647 | (sequence-output (stream sequencer) |
648 | :constraint ((*instance-class* :object chain-head :ichain :start) | |
649 | (*instance-class* :object chain-head :vtable) | |
650 | (*instance-class* :object chain-head :ichain :end)) | |
651 | ((*instance-class* :object chain-head :vtable) | |
c2438e62 MW |
652 | (format stream " /* ~17@A = */ &~A.~A,~%" |
653 | "_vt" | |
654 | (vtable-name class chain-head) | |
655 | (sod-class-nickname chain-tail)))))) | |
3be8c2bf MW |
656 | |
657 | (defgeneric find-class-initializer (slot class) | |
658 | (:method ((slot effective-slot) (class sod-class)) | |
659 | (let ((dslot (effective-slot-direct-slot slot))) | |
660 | (or (some (lambda (super) | |
661 | (find dslot (sod-class-class-initializers super) | |
4178a2f7 | 662 | :key #'sod-initializer-slot)) |
3be8c2bf MW |
663 | (sod-class-precedence-list class)) |
664 | (effective-slot-initializer slot))))) | |
665 | ||
666 | (defgeneric output-class-initializer (slot instance stream) | |
667 | (:method ((slot sod-class-effective-slot) (instance sod-class) stream) | |
9ec578d9 MW |
668 | (let ((func (effective-slot-initializer-function slot)) |
669 | (direct-slot (effective-slot-direct-slot slot))) | |
3be8c2bf | 670 | (if func |
9ec578d9 MW |
671 | (format stream " /* ~15@A = */ ~A,~%" |
672 | (sod-slot-name direct-slot) | |
673 | (funcall func instance)) | |
3be8c2bf MW |
674 | (call-next-method)))) |
675 | (:method ((slot effective-slot) (instance sod-class) stream) | |
9ec578d9 MW |
676 | (let ((init (find-class-initializer slot instance)) |
677 | (direct-slot (effective-slot-direct-slot slot))) | |
a888e3ac MW |
678 | (format stream " /* ~15@A = */ ~A,~%" |
679 | (sod-slot-name direct-slot) | |
680 | (sod-initializer-value init))))) | |
3be8c2bf | 681 | |
1224dfb0 MW |
682 | (defmethod hook-output progn |
683 | ((slot sod-class-effective-slot) (reason (eql 'class)) sequencer) | |
3be8c2bf MW |
684 | (let ((instance *instance-class*) |
685 | (func (effective-slot-prepare-function slot))) | |
686 | (when func | |
687 | (sequence-output (stream sequencer) | |
688 | ((instance :object :prepare) | |
689 | (funcall func instance stream)))))) | |
690 | ||
1224dfb0 MW |
691 | (defmethod hook-output progn |
692 | ((slot effective-slot) (reason (eql 'class)) sequencer) | |
4b8e5c03 | 693 | (with-slots ((class %class) (dslot slot)) slot |
3be8c2bf MW |
694 | (let ((instance *instance-class*) |
695 | (super (sod-slot-class dslot))) | |
696 | (sequence-output (stream sequencer) | |
697 | ((instance :object super :slots) | |
698 | (output-class-initializer slot instance stream)))))) | |
699 | ||
1f1d88f5 | 700 | ;;;----- That's all, folks -------------------------------------------------- |