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28bf4b0b | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
c59f5181 | 3 | ** Copyright (C) 1994-2003 University of Virginia, |
28bf4b0b | 4 | ** Massachusetts Institute of Technology |
5 | ** | |
6 | ** This program is free software; you can redistribute it and/or modify it | |
7 | ** under the terms of the GNU General Public License as published by the | |
8 | ** Free Software Foundation; either version 2 of the License, or (at your | |
9 | ** option) any later version. | |
10 | ** | |
11 | ** This program is distributed in the hope that it will be useful, but | |
12 | ** WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | ** General Public License for more details. | |
15 | ** | |
16 | ** The GNU General Public License is available from http://www.gnu.org/ or | |
17 | ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | ** MA 02111-1307, USA. | |
19 | ** | |
155af98d | 20 | ** For information on splint: info@splint.org |
21 | ** To report a bug: splint-bug@splint.org | |
11db3170 | 22 | ** For more information: http://www.splint.org |
28bf4b0b | 23 | */ |
24 | /* | |
25 | ** mtDeclarationNode.c | |
26 | */ | |
27 | ||
1b8ae690 | 28 | # include "splintMacros.nf" |
28bf4b0b | 29 | # include "basic.h" |
28bf4b0b | 30 | |
31 | extern mtDeclarationNode mtDeclarationNode_create (mttok name, mtDeclarationPieces pieces) /*@*/ | |
32 | { | |
33 | mtDeclarationNode res = (mtDeclarationNode) dmalloc (sizeof (*res)); | |
34 | ||
35 | res->name = mttok_getText (name); | |
36 | res->loc = mttok_stealLoc (name); | |
37 | res->pieces = pieces; | |
38 | ||
39 | mttok_free (name); | |
40 | return res; | |
41 | } | |
42 | ||
43 | extern cstring mtDeclarationNode_unparse (mtDeclarationNode node) /*@*/ | |
44 | { | |
45 | return message ("state %s %q", | |
46 | node->name, | |
47 | mtDeclarationPieces_unparse (node->pieces)); | |
48 | } | |
49 | ||
50 | extern void mtDeclarationNode_process (mtDeclarationNode node, bool isglobal) | |
51 | { | |
52 | int i; | |
53 | int j; | |
54 | ||
55 | mtDeclarationPieces pieces; | |
56 | mtDeclarationPiece mtp; | |
57 | mtContextNode mtcontext; | |
58 | stateCombinationTable tsc; | |
59 | stateCombinationTable tmerge; | |
60 | cstringList mvals; | |
61 | metaStateInfo msinfo; | |
62 | int nvalues; | |
63 | ||
12f2ffe9 | 64 | cstring defaultMergeMessage = |
65 | cstring_makeLiteralTemp ("Incompatible state merge (default behavior)"); | |
66 | ||
28bf4b0b | 67 | pieces = node->pieces; |
68 | ||
69 | /* | |
70 | ** First, we need to find the values piece. | |
71 | */ | |
72 | ||
73 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_VALUES); | |
74 | ||
75 | if (mtDeclarationPiece_isUndefined (mtp)) | |
76 | { | |
77 | voptgenerror (FLG_SYNTAX, | |
78 | message ("Metastate declaration missing values clause: %s", | |
79 | mtDeclarationNode_getName (node)), | |
80 | mtDeclarationNode_getLoc (node)); | |
81 | return; | |
82 | } | |
83 | else | |
84 | { | |
85 | mtValuesNode mtv = mtDeclarationPiece_getValues (mtp); | |
86 | mvals = mtValuesNode_getValues (mtv); | |
87 | } | |
88 | ||
b73d1009 | 89 | /*@-usedef@*/ /* splint should figure this out... */ |
28bf4b0b | 90 | nvalues = cstringList_size (mvals); |
91 | /*@=usedef@*/ | |
92 | ||
93 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_CONTEXT); | |
94 | ||
95 | if (mtDeclarationPiece_isUndefined (mtp)) | |
96 | { | |
97 | ; /* No context, assume anywhere is okay. */ | |
98 | mtcontext = mtContextNode_createAny (); | |
99 | } | |
100 | else | |
101 | { | |
102 | mtcontext = mtDeclarationPiece_stealContext (mtp); | |
103 | } | |
104 | ||
105 | if (isglobal) | |
106 | { | |
107 | /* | |
108 | ** For global state, instead of a transfers piece, we have constraints. | |
109 | */ | |
110 | ||
111 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_TRANSFERS); | |
112 | ||
113 | if (!mtDeclarationPiece_isUndefined (mtp)) | |
114 | { | |
115 | voptgenerror (FLG_SYNTAX, | |
116 | message ("Global state declaration uses transfers clause. Should use preconditions and postconsitions clauses instead: %s", | |
117 | mtDeclarationNode_getName (node)), | |
118 | mtDeclarationNode_getLoc (node)); | |
119 | mtContextNode_free (mtcontext); | |
120 | return; | |
121 | } | |
122 | ||
123 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_PRECONDITIONS); | |
124 | ||
125 | if (mtDeclarationPiece_isUndefined (mtp)) | |
126 | { | |
127 | voptgenerror (FLG_SYNTAX, | |
128 | message ("Metastate declaration missing preconditions clause: %s", | |
129 | mtDeclarationNode_getName (node)), | |
130 | mtDeclarationNode_getLoc (node)); | |
131 | mtContextNode_free (mtcontext); | |
132 | return; | |
133 | } | |
134 | else | |
135 | { | |
136 | mtTransferClauseList mtransfers = mtDeclarationPiece_getPreconditions (mtp); | |
137 | tsc = stateCombinationTable_create (nvalues); | |
138 | ||
139 | mtTransferClauseList_elements (mtransfers, transfer) | |
140 | { | |
141 | cstring tfrom = mtTransferClause_getFrom (transfer); | |
142 | cstring tto = mtTransferClause_getTo (transfer); | |
143 | mtTransferAction taction = mtTransferClause_getAction (transfer); | |
144 | cstring vname = mtTransferAction_getValue (taction); | |
145 | ||
146 | int fromindex; | |
147 | int toindex; | |
148 | int vindex; | |
149 | ||
150 | DPRINTF (("Transfer: %s", mtTransferClause_unparse (transfer))); | |
151 | ||
152 | if (cstringList_contains (mvals, tfrom)) | |
153 | { | |
154 | fromindex = cstringList_getIndex (mvals, tfrom); | |
155 | } | |
156 | else | |
157 | { | |
158 | voptgenerror | |
159 | (FLG_SYNTAX, | |
160 | message ("Precondition clause uses unrecognized caller value %s: %q", | |
161 | tfrom, mtTransferClause_unparse (transfer)), | |
162 | mtTransferClause_getLoc (transfer)); | |
163 | continue; | |
164 | } | |
165 | ||
166 | if (cstringList_contains (mvals, tto)) | |
167 | { | |
168 | toindex = cstringList_getIndex (mvals, tto); | |
169 | } | |
170 | else | |
171 | { | |
172 | voptgenerror | |
173 | (FLG_SYNTAX, | |
174 | message ("Precondition clause uses unrecognized constraint value %s: %q", | |
175 | tto, mtTransferClause_unparse (transfer)), | |
176 | mtTransferClause_getLoc (transfer)); | |
177 | continue; | |
178 | } | |
179 | ||
180 | if (mtTransferAction_isError (taction)) | |
181 | { | |
182 | vindex = metaState_error; | |
183 | } | |
184 | else | |
185 | { | |
186 | if (cstringList_contains (mvals, vname)) | |
187 | { | |
188 | vindex = cstringList_getIndex (mvals, vname); | |
189 | } | |
190 | else | |
191 | { | |
192 | voptgenerror | |
193 | (FLG_SYNTAX, | |
194 | message ("Precondition clause uses unrecognized result state %s: %q", | |
195 | vname, mtTransferClause_unparse (transfer)), | |
196 | mtTransferClause_getLoc (transfer)); | |
197 | continue; | |
198 | } | |
199 | } | |
200 | ||
201 | if (mtTransferAction_isError (taction)) | |
202 | { | |
203 | stateCombinationTable_set | |
204 | (tsc, fromindex, toindex, | |
205 | vindex, | |
206 | cstring_copy (mtTransferAction_getMessage (taction))); | |
207 | } | |
208 | else | |
209 | { | |
210 | stateCombinationTable_set (tsc, fromindex, toindex, | |
211 | vindex, | |
212 | cstring_undefined); | |
213 | } | |
214 | } end_mtTransferClauseList_elements ; | |
215 | } | |
216 | } | |
217 | else | |
218 | { | |
219 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_PRECONDITIONS); | |
220 | ||
221 | if (!mtDeclarationPiece_isUndefined (mtp)) | |
222 | { | |
223 | voptgenerror | |
224 | (FLG_SYNTAX, | |
225 | message ("Non-global state declaration uses preconditions clause. " | |
226 | "Should use transfers clause instead: %s", | |
227 | mtDeclarationNode_getName (node)), | |
228 | mtDeclarationNode_getLoc (node)); | |
229 | mtContextNode_free (mtcontext); | |
230 | return; | |
231 | } | |
232 | ||
233 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_POSTCONDITIONS); | |
234 | ||
235 | if (!mtDeclarationPiece_isUndefined (mtp)) | |
236 | { | |
237 | voptgenerror | |
238 | (FLG_SYNTAX, | |
239 | message ("Non-global state declaration uses postconditions clause. " | |
240 | "Should use transfers clause instead: %s", | |
241 | mtDeclarationNode_getName (node)), | |
242 | mtDeclarationNode_getLoc (node)); | |
243 | mtContextNode_free (mtcontext); | |
244 | return; | |
245 | } | |
246 | ||
247 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_TRANSFERS); | |
248 | ||
249 | if (mtDeclarationPiece_isUndefined (mtp)) | |
250 | { | |
251 | voptgenerror (FLG_SYNTAX, | |
252 | message ("Metastate declaration missing transfers clause: %s", | |
253 | mtDeclarationNode_getName (node)), | |
254 | mtDeclarationNode_getLoc (node)); | |
255 | mtContextNode_free (mtcontext); | |
256 | return; | |
257 | } | |
258 | else | |
259 | { | |
260 | mtTransferClauseList mtransfers = mtDeclarationPiece_getTransfers (mtp); | |
261 | tsc = stateCombinationTable_create (nvalues); | |
262 | ||
263 | mtTransferClauseList_elements (mtransfers, transfer) | |
264 | { | |
265 | cstring tfrom = mtTransferClause_getFrom (transfer); | |
266 | cstring tto = mtTransferClause_getTo (transfer); | |
267 | mtTransferAction taction = mtTransferClause_getAction (transfer); | |
268 | cstring vname = mtTransferAction_getValue (taction); | |
269 | ||
270 | int fromindex; | |
271 | int toindex; | |
272 | int vindex; | |
273 | ||
274 | DPRINTF (("Transfer: %s", mtTransferClause_unparse (transfer))); | |
275 | ||
276 | if (cstringList_contains (mvals, tfrom)) | |
277 | { | |
278 | fromindex = cstringList_getIndex (mvals, tfrom); | |
279 | } | |
280 | else | |
281 | { | |
282 | voptgenerror | |
283 | (FLG_SYNTAX, | |
284 | message ("Transfer clause uses unrecognized from value %s: %q", | |
285 | tfrom, mtTransferClause_unparse (transfer)), | |
286 | mtTransferClause_getLoc (transfer)); | |
287 | continue; | |
288 | } | |
289 | ||
290 | if (cstringList_contains (mvals, tto)) | |
291 | { | |
292 | toindex = cstringList_getIndex (mvals, tto); | |
293 | } | |
294 | else | |
295 | { | |
296 | voptgenerror | |
297 | (FLG_SYNTAX, | |
298 | message ("Transfer clause uses unrecognized to value %s: %q", | |
299 | tto, mtTransferClause_unparse (transfer)), | |
300 | mtTransferClause_getLoc (transfer)); | |
301 | continue; | |
302 | } | |
303 | ||
304 | if (mtTransferAction_isError (taction)) | |
305 | { | |
306 | vindex = metaState_error; | |
307 | } | |
308 | else | |
309 | { | |
310 | if (cstringList_contains (mvals, vname)) | |
311 | { | |
312 | vindex = cstringList_getIndex (mvals, vname); | |
313 | } | |
314 | else | |
315 | { | |
316 | voptgenerror | |
317 | (FLG_SYNTAX, | |
318 | message ("Transfer clause uses unrecognized result state %s: %q", | |
319 | vname, mtTransferClause_unparse (transfer)), | |
320 | mtTransferClause_getLoc (transfer)); | |
321 | continue; | |
322 | } | |
323 | } | |
324 | ||
325 | if (mtTransferAction_isError (taction)) | |
326 | { | |
327 | stateCombinationTable_set | |
328 | (tsc, fromindex, toindex, | |
329 | vindex, | |
330 | cstring_copy (mtTransferAction_getMessage (taction))); | |
331 | } | |
332 | else | |
333 | { | |
334 | stateCombinationTable_set (tsc, fromindex, toindex, | |
335 | vindex, | |
336 | cstring_undefined); | |
337 | } | |
338 | } end_mtTransferClauseList_elements ; | |
339 | } | |
340 | } | |
341 | ||
342 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_LOSERS); | |
343 | ||
344 | if (mtDeclarationPiece_isDefined (mtp)) | |
345 | { | |
346 | mtLoseReferenceList mlosers = mtDeclarationPiece_getLosers (mtp); | |
347 | ||
348 | mtLoseReferenceList_elements (mlosers, loseref) | |
349 | { | |
350 | cstring tfrom = mtLoseReference_getFrom (loseref); | |
351 | mtTransferAction taction = mtLoseReference_getAction (loseref); | |
352 | int fromindex; | |
353 | /* Losing reference is represented by transfer to nvalues */ | |
354 | int toindex = nvalues; | |
355 | int vindex = metaState_error; | |
356 | ||
357 | llassert (mtTransferAction_isError (taction)); | |
358 | ||
359 | if (cstringList_contains (mvals, tfrom)) | |
360 | { | |
361 | fromindex = cstringList_getIndex (mvals, tfrom); | |
362 | } | |
363 | else | |
364 | { | |
365 | voptgenerror | |
366 | (FLG_SYNTAX, | |
367 | message ("Lose reference uses unrecognized from value %s: %q", | |
368 | tfrom, mtLoseReference_unparse (loseref)), | |
369 | mtLoseReference_getLoc (loseref)); | |
370 | continue; | |
371 | } | |
372 | ||
373 | /*@-usedef@*/ | |
374 | stateCombinationTable_set | |
375 | (tsc, fromindex, toindex, vindex, | |
376 | cstring_copy (mtTransferAction_getMessage (taction))); | |
377 | /*@=usedef@*/ | |
378 | } end_mtLoseReferenceList_elements ; | |
379 | } | |
380 | ||
28bf4b0b | 381 | tmerge = stateCombinationTable_create (nvalues); |
382 | ||
383 | /* Default merge is to make all incompatible mergers errors. */ | |
384 | ||
385 | for (i = 0; i < nvalues; i++) | |
386 | { | |
387 | for (j = 0; j < nvalues; j++) | |
388 | { | |
389 | if (i != j) | |
390 | { | |
391 | stateCombinationTable_set | |
12f2ffe9 | 392 | (tmerge, i, j, metaState_error, cstring_copy (defaultMergeMessage)); |
28bf4b0b | 393 | } |
394 | } | |
395 | } | |
396 | ||
397 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_MERGE); | |
398 | ||
399 | if (mtDeclarationPiece_isDefined (mtp)) | |
400 | { | |
401 | mtMergeNode mtmerge = mtDeclarationPiece_getMerge (mtp); | |
402 | mtMergeClauseList mclauses = mtMergeNode_getClauses (mtmerge); | |
403 | ||
404 | DPRINTF (("Merge node: %s", mtMergeNode_unparse (mtmerge))); | |
405 | ||
406 | mtMergeClauseList_elements (mclauses, merge) | |
407 | { | |
408 | mtMergeItem item1 = mtMergeClause_getItem1 (merge); | |
409 | mtMergeItem item2 = mtMergeClause_getItem2 (merge); | |
410 | mtTransferAction taction = mtMergeClause_getAction (merge); | |
411 | int low1index, high1index; | |
412 | int low2index, high2index; | |
413 | int vindex; | |
414 | ||
415 | DPRINTF (("Merge %s X %s => %s", | |
416 | mtMergeItem_unparse (item1), | |
417 | mtMergeItem_unparse (item2), | |
418 | mtTransferAction_unparse (taction))); | |
419 | ||
420 | if (!mtMergeItem_isStar (item1)) | |
421 | { | |
422 | if (cstringList_contains (mvals, mtMergeItem_getValue (item1))) | |
423 | { | |
424 | low1index = cstringList_getIndex (mvals, mtMergeItem_getValue (item1)); | |
425 | high1index = low1index; | |
426 | } | |
427 | else | |
428 | { | |
429 | voptgenerror | |
430 | (FLG_SYNTAX, | |
431 | message ("Merge clause uses unrecognized first value %s: %q", | |
432 | mtMergeItem_getValue (item1), | |
433 | mtMergeClause_unparse (merge)), | |
434 | mtMergeClause_getLoc (merge)); | |
435 | continue; | |
436 | } | |
437 | } | |
438 | else | |
439 | { | |
440 | low1index = 0; | |
441 | high1index = nvalues - 1; | |
442 | } | |
443 | ||
444 | if (!mtMergeItem_isStar (item2)) | |
445 | { | |
446 | if (cstringList_contains (mvals, mtMergeItem_getValue (item2))) | |
447 | { | |
448 | low2index = cstringList_getIndex (mvals, mtMergeItem_getValue (item2)); | |
449 | high2index = low2index; | |
450 | } | |
451 | else | |
452 | { | |
453 | voptgenerror | |
454 | (FLG_SYNTAX, | |
455 | message ("Merge clause uses unrecognized second value %s: %q", | |
456 | mtMergeItem_getValue (item2), | |
457 | mtMergeClause_unparse (merge)), | |
458 | mtMergeItem_getLoc (item2)); | |
459 | continue; | |
460 | } | |
461 | } | |
462 | else | |
463 | { | |
464 | low2index = 0; | |
465 | high2index = nvalues - 1; | |
466 | } | |
467 | ||
468 | if (mtTransferAction_isError (taction)) | |
469 | { | |
470 | vindex = metaState_error; | |
471 | } | |
472 | else | |
473 | { | |
474 | cstring vname = mtTransferAction_getValue (taction); | |
475 | ||
476 | if (cstringList_contains (mvals, vname)) | |
477 | { | |
478 | vindex = cstringList_getIndex (mvals, vname); | |
479 | } | |
480 | else | |
481 | { | |
482 | voptgenerror | |
483 | (FLG_SYNTAX, | |
484 | message ("Merge clause uses unrecognized result state %s: %q", | |
485 | vname, mtMergeClause_unparse (merge)), | |
486 | mtTransferAction_getLoc (taction)); | |
487 | continue; | |
488 | } | |
489 | } | |
490 | ||
491 | for (i = low1index; i <= high1index; i++) | |
492 | { | |
493 | for (j = low2index; j <= high2index; j++) | |
494 | { | |
b73d1009 | 495 | /* Need to add checks for multiple definitions! */ |
28bf4b0b | 496 | |
497 | if (mtTransferAction_isError (taction)) | |
498 | { | |
499 | stateCombinationTable_update | |
500 | (tmerge, | |
501 | i, j, | |
502 | vindex, | |
503 | cstring_copy (mtTransferAction_getMessage (taction))); | |
504 | } | |
505 | else | |
506 | { | |
507 | stateCombinationTable_update | |
508 | (tmerge, | |
509 | i, j, | |
510 | vindex, | |
511 | cstring_undefined); | |
512 | } | |
513 | } | |
514 | } | |
12f2ffe9 | 515 | |
516 | /* | |
517 | ** Unless otherwise indicated, merging is symmetric: | |
518 | */ | |
519 | ||
520 | for (i = low1index; i <= high1index; i++) | |
521 | { | |
522 | for (j = low2index; j <= high2index; j++) | |
523 | { | |
524 | cstring msg; | |
525 | ||
526 | if (stateCombinationTable_lookup (tmerge, j, i, &msg) == metaState_error) | |
527 | { | |
528 | if (cstring_equal (msg, defaultMergeMessage)) | |
529 | { | |
530 | /* Override the default action */ | |
531 | if (mtTransferAction_isError (taction)) | |
532 | { | |
533 | stateCombinationTable_update | |
534 | (tmerge, | |
535 | j, i, | |
536 | vindex, | |
537 | cstring_copy (mtTransferAction_getMessage (taction))); | |
538 | } | |
539 | else | |
540 | { | |
541 | stateCombinationTable_update | |
542 | (tmerge, | |
543 | j, i, | |
544 | vindex, | |
545 | cstring_undefined); | |
546 | } | |
547 | } | |
548 | } | |
549 | } | |
550 | } | |
28bf4b0b | 551 | } end_mtMergeClauseList_elements ; |
552 | } | |
553 | ||
554 | msinfo = metaStateInfo_create (cstring_copy (mtDeclarationNode_getName (node)), | |
555 | cstringList_copy (mvals), | |
556 | mtcontext, | |
557 | /*@-usedef@*/ tsc, /*@=usedef@*/ | |
558 | tmerge, | |
559 | fileloc_copy (mtDeclarationNode_getLoc (node))); | |
560 | ||
561 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_ANNOTATIONS); | |
562 | ||
563 | if (mtDeclarationPiece_isDefined (mtp)) | |
564 | { | |
565 | mtAnnotationsNode mtannots = mtDeclarationPiece_getAnnotations (mtp); | |
566 | mtAnnotationList mtalist = mtAnnotationsNode_getAnnotations (mtannots); | |
567 | ||
568 | DPRINTF (("Has annotations: %s", mtAnnotationList_unparse (mtalist))); | |
569 | ||
570 | mtAnnotationList_elements (mtalist, annot) | |
571 | { | |
572 | cstring aname = mtAnnotationDecl_getName (annot); | |
573 | cstring avalue = mtAnnotationDecl_getValue (annot); | |
574 | ||
575 | DPRINTF (("Process annotation: %s", mtAnnotationDecl_unparse (annot))); | |
576 | ||
577 | if (cstringList_contains (mvals, avalue)) | |
578 | { | |
579 | int vindex = cstringList_getIndex (mvals, avalue); | |
580 | mtContextNode acontext = mtAnnotationDecl_stealContext (annot); | |
581 | ||
582 | context_addAnnotation | |
583 | (annotationInfo_create (cstring_copy (aname), msinfo, | |
584 | acontext, vindex, | |
585 | fileloc_copy (mtAnnotationDecl_getLoc (annot)))); | |
586 | } | |
587 | else | |
588 | { | |
589 | voptgenerror | |
590 | (FLG_SYNTAX, | |
591 | message ("Annotation declaration uses unrecognized value name %s: %q", | |
592 | avalue, mtAnnotationDecl_unparse (annot)), | |
593 | mtAnnotationDecl_getLoc (annot)); | |
594 | } | |
595 | ||
596 | } end_mtAnnotationList_elements ; | |
597 | } | |
598 | ||
599 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_DEFAULTS); | |
600 | ||
601 | if (mtDeclarationPiece_isDefined (mtp)) | |
602 | { | |
603 | mtDefaultsNode mdn = mtDeclarationPiece_getDefaults (mtp); | |
604 | mtDefaultsDeclList mdecls = mtDefaultsNode_getDecls (mdn); | |
605 | ||
606 | llassert (!isglobal); | |
607 | ||
608 | mtDefaultsDeclList_elements (mdecls, mdecl) | |
609 | { | |
610 | mtContextNode mcontext = mtDefaultsDecl_getContext (mdecl); | |
611 | cstring mvalue = mtDefaultsDecl_getValue (mdecl); | |
612 | ||
613 | if (cstringList_contains (mvals, mvalue)) | |
614 | { | |
615 | int vindex = cstringList_getIndex (mvals, mvalue); | |
12f2ffe9 | 616 | mtContextKind mkind; |
28bf4b0b | 617 | |
b072092f | 618 | if (mtContextNode_isReference (mcontext)) |
28bf4b0b | 619 | { |
12f2ffe9 | 620 | mkind = MTC_REFERENCE; |
28bf4b0b | 621 | } |
622 | else if (mtContextNode_isParameter (mcontext)) | |
623 | { | |
12f2ffe9 | 624 | mkind = MTC_PARAM; |
28bf4b0b | 625 | } |
b072092f | 626 | else if (mtContextNode_isResult (mcontext)) |
627 | { | |
12f2ffe9 | 628 | mkind = MTC_RESULT; |
629 | } | |
630 | else if (mtContextNode_isLiteral (mcontext)) | |
631 | { | |
632 | mkind = MTC_LITERAL; | |
633 | } | |
634 | else if (mtContextNode_isNull (mcontext)) | |
635 | { | |
636 | mkind = MTC_NULL; | |
b072092f | 637 | } |
28bf4b0b | 638 | else |
639 | { | |
12f2ffe9 | 640 | DPRINTF (("Bad: %s", mtContextNode_unparse (mcontext))); |
28bf4b0b | 641 | BADBRANCH; |
642 | } | |
12f2ffe9 | 643 | |
644 | if (metaStateInfo_getDefaultValueContext (msinfo, mkind) != stateValue_error) | |
645 | { | |
646 | voptgenerror | |
647 | (FLG_SYNTAX, | |
648 | message ("Duplicate defaults declaration for context %q: %q", | |
649 | mtContextNode_unparse (mcontext), | |
650 | mtDefaultsDecl_unparse (mdecl)), | |
651 | mtDefaultsDecl_getLoc (mdecl)); | |
652 | } | |
653 | else | |
654 | { | |
655 | metaStateInfo_setDefaultValueContext (msinfo, mkind, vindex); | |
656 | } | |
28bf4b0b | 657 | } |
658 | else | |
659 | { | |
660 | voptgenerror | |
661 | (FLG_SYNTAX, | |
662 | message ("Defaults declaration uses unrecognized value name %s: %q", | |
663 | mvalue, mtDefaultsDecl_unparse (mdecl)), | |
664 | mtDefaultsDecl_getLoc (mdecl)); | |
665 | } | |
666 | } end_mtDefaultsDeclList_elements ; | |
667 | } | |
668 | ||
669 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_DEFAULTVALUE); | |
670 | ||
671 | if (mtDeclarationPiece_isDefined (mtp)) | |
672 | { | |
673 | cstring mvalue = mtDeclarationPiece_getDefaultValue (mtp); | |
674 | llassert (isglobal); | |
675 | ||
676 | if (cstringList_contains (mvals, mvalue)) | |
677 | { | |
678 | int vindex = cstringList_getIndex (mvals, mvalue); | |
679 | ||
680 | if (metaStateInfo_getDefaultRefValue (msinfo) != stateValue_error) | |
681 | { | |
682 | voptgenerror | |
683 | (FLG_SYNTAX, | |
684 | message ("Duplicate default value declaration for global state: %s", | |
685 | mvalue), | |
686 | mtDeclarationNode_getLoc (node)); | |
687 | } | |
688 | else | |
689 | { | |
690 | metaStateInfo_setDefaultRefValue (msinfo, vindex); | |
691 | } | |
692 | } | |
693 | else | |
694 | { | |
695 | voptgenerror | |
696 | (FLG_SYNTAX, | |
697 | message ("Default value declaration uses unrecognized value name: %s", | |
698 | mvalue), | |
699 | mtDeclarationNode_getLoc (node)); | |
700 | } | |
701 | } | |
702 | ||
703 | context_addMetaState (cstring_copy (mtDeclarationNode_getName (node)), | |
704 | msinfo); | |
705 | } | |
706 | ||
707 | extern void mtDeclarationNode_free (/*@only@*/ mtDeclarationNode node) | |
708 | { | |
709 | mtDeclarationPieces_free (node->pieces); | |
710 | cstring_free (node->name); | |
711 | fileloc_free (node->loc); | |
712 | sfree (node); | |
713 | } | |
714 | ||
715 | extern fileloc mtDeclarationNode_getLoc (mtDeclarationNode node) | |
716 | { | |
717 | return node->loc; | |
718 | } | |
719 | ||
720 | extern /*@observer@*/ cstring mtDeclarationNode_getName (mtDeclarationNode node) | |
721 | { | |
722 | return node->name; | |
723 | } |