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28bf4b0b | 1 | /* |
2 | ** LCLint - annotation-assisted static program checker | |
3 | ** Copyright (C) 1994-2001 University of Virginia, | |
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 | ** | |
20 | ** For information on lclint: lclint-request@cs.virginia.edu | |
21 | ** To report a bug: lclint-bug@cs.virginia.edu | |
22 | ** For more information: http://lclint.cs.virginia.edu | |
23 | */ | |
24 | /* | |
25 | ** mtDeclarationNode.c | |
26 | */ | |
27 | ||
28 | # include "lclintMacros.nf" | |
29 | # include "basic.h" | |
30 | # include "mtgrammar.h" | |
31 | ||
32 | extern mtDeclarationNode mtDeclarationNode_create (mttok name, mtDeclarationPieces pieces) /*@*/ | |
33 | { | |
34 | mtDeclarationNode res = (mtDeclarationNode) dmalloc (sizeof (*res)); | |
35 | ||
36 | res->name = mttok_getText (name); | |
37 | res->loc = mttok_stealLoc (name); | |
38 | res->pieces = pieces; | |
39 | ||
40 | mttok_free (name); | |
41 | return res; | |
42 | } | |
43 | ||
44 | extern cstring mtDeclarationNode_unparse (mtDeclarationNode node) /*@*/ | |
45 | { | |
46 | return message ("state %s %q", | |
47 | node->name, | |
48 | mtDeclarationPieces_unparse (node->pieces)); | |
49 | } | |
50 | ||
51 | extern void mtDeclarationNode_process (mtDeclarationNode node, bool isglobal) | |
52 | { | |
53 | int i; | |
54 | int j; | |
55 | ||
56 | mtDeclarationPieces pieces; | |
57 | mtDeclarationPiece mtp; | |
58 | mtContextNode mtcontext; | |
59 | stateCombinationTable tsc; | |
60 | stateCombinationTable tmerge; | |
61 | cstringList mvals; | |
62 | metaStateInfo msinfo; | |
63 | int nvalues; | |
64 | ||
65 | pieces = node->pieces; | |
66 | ||
67 | /* | |
68 | ** First, we need to find the values piece. | |
69 | */ | |
70 | ||
71 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_VALUES); | |
72 | ||
73 | if (mtDeclarationPiece_isUndefined (mtp)) | |
74 | { | |
75 | voptgenerror (FLG_SYNTAX, | |
76 | message ("Metastate declaration missing values clause: %s", | |
77 | mtDeclarationNode_getName (node)), | |
78 | mtDeclarationNode_getLoc (node)); | |
79 | return; | |
80 | } | |
81 | else | |
82 | { | |
83 | mtValuesNode mtv = mtDeclarationPiece_getValues (mtp); | |
84 | mvals = mtValuesNode_getValues (mtv); | |
85 | } | |
86 | ||
87 | /*@-usedef@*/ /*@i34 lclint should figure this out... */ | |
88 | nvalues = cstringList_size (mvals); | |
89 | /*@=usedef@*/ | |
90 | ||
91 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_CONTEXT); | |
92 | ||
93 | if (mtDeclarationPiece_isUndefined (mtp)) | |
94 | { | |
95 | ; /* No context, assume anywhere is okay. */ | |
96 | mtcontext = mtContextNode_createAny (); | |
97 | } | |
98 | else | |
99 | { | |
100 | mtcontext = mtDeclarationPiece_stealContext (mtp); | |
101 | } | |
102 | ||
103 | if (isglobal) | |
104 | { | |
105 | /* | |
106 | ** For global state, instead of a transfers piece, we have constraints. | |
107 | */ | |
108 | ||
109 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_TRANSFERS); | |
110 | ||
111 | if (!mtDeclarationPiece_isUndefined (mtp)) | |
112 | { | |
113 | voptgenerror (FLG_SYNTAX, | |
114 | message ("Global state declaration uses transfers clause. Should use preconditions and postconsitions clauses instead: %s", | |
115 | mtDeclarationNode_getName (node)), | |
116 | mtDeclarationNode_getLoc (node)); | |
117 | mtContextNode_free (mtcontext); | |
118 | return; | |
119 | } | |
120 | ||
121 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_PRECONDITIONS); | |
122 | ||
123 | if (mtDeclarationPiece_isUndefined (mtp)) | |
124 | { | |
125 | voptgenerror (FLG_SYNTAX, | |
126 | message ("Metastate declaration missing preconditions clause: %s", | |
127 | mtDeclarationNode_getName (node)), | |
128 | mtDeclarationNode_getLoc (node)); | |
129 | mtContextNode_free (mtcontext); | |
130 | return; | |
131 | } | |
132 | else | |
133 | { | |
134 | mtTransferClauseList mtransfers = mtDeclarationPiece_getPreconditions (mtp); | |
135 | tsc = stateCombinationTable_create (nvalues); | |
136 | ||
137 | mtTransferClauseList_elements (mtransfers, transfer) | |
138 | { | |
139 | cstring tfrom = mtTransferClause_getFrom (transfer); | |
140 | cstring tto = mtTransferClause_getTo (transfer); | |
141 | mtTransferAction taction = mtTransferClause_getAction (transfer); | |
142 | cstring vname = mtTransferAction_getValue (taction); | |
143 | ||
144 | int fromindex; | |
145 | int toindex; | |
146 | int vindex; | |
147 | ||
148 | DPRINTF (("Transfer: %s", mtTransferClause_unparse (transfer))); | |
149 | ||
150 | if (cstringList_contains (mvals, tfrom)) | |
151 | { | |
152 | fromindex = cstringList_getIndex (mvals, tfrom); | |
153 | } | |
154 | else | |
155 | { | |
156 | voptgenerror | |
157 | (FLG_SYNTAX, | |
158 | message ("Precondition clause uses unrecognized caller value %s: %q", | |
159 | tfrom, mtTransferClause_unparse (transfer)), | |
160 | mtTransferClause_getLoc (transfer)); | |
161 | continue; | |
162 | } | |
163 | ||
164 | if (cstringList_contains (mvals, tto)) | |
165 | { | |
166 | toindex = cstringList_getIndex (mvals, tto); | |
167 | } | |
168 | else | |
169 | { | |
170 | voptgenerror | |
171 | (FLG_SYNTAX, | |
172 | message ("Precondition clause uses unrecognized constraint value %s: %q", | |
173 | tto, mtTransferClause_unparse (transfer)), | |
174 | mtTransferClause_getLoc (transfer)); | |
175 | continue; | |
176 | } | |
177 | ||
178 | if (mtTransferAction_isError (taction)) | |
179 | { | |
180 | vindex = metaState_error; | |
181 | } | |
182 | else | |
183 | { | |
184 | if (cstringList_contains (mvals, vname)) | |
185 | { | |
186 | vindex = cstringList_getIndex (mvals, vname); | |
187 | } | |
188 | else | |
189 | { | |
190 | voptgenerror | |
191 | (FLG_SYNTAX, | |
192 | message ("Precondition clause uses unrecognized result state %s: %q", | |
193 | vname, mtTransferClause_unparse (transfer)), | |
194 | mtTransferClause_getLoc (transfer)); | |
195 | continue; | |
196 | } | |
197 | } | |
198 | ||
199 | if (mtTransferAction_isError (taction)) | |
200 | { | |
201 | stateCombinationTable_set | |
202 | (tsc, fromindex, toindex, | |
203 | vindex, | |
204 | cstring_copy (mtTransferAction_getMessage (taction))); | |
205 | } | |
206 | else | |
207 | { | |
208 | stateCombinationTable_set (tsc, fromindex, toindex, | |
209 | vindex, | |
210 | cstring_undefined); | |
211 | } | |
212 | } end_mtTransferClauseList_elements ; | |
213 | } | |
214 | } | |
215 | else | |
216 | { | |
217 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_PRECONDITIONS); | |
218 | ||
219 | if (!mtDeclarationPiece_isUndefined (mtp)) | |
220 | { | |
221 | voptgenerror | |
222 | (FLG_SYNTAX, | |
223 | message ("Non-global state declaration uses preconditions clause. " | |
224 | "Should use transfers clause instead: %s", | |
225 | mtDeclarationNode_getName (node)), | |
226 | mtDeclarationNode_getLoc (node)); | |
227 | mtContextNode_free (mtcontext); | |
228 | return; | |
229 | } | |
230 | ||
231 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_POSTCONDITIONS); | |
232 | ||
233 | if (!mtDeclarationPiece_isUndefined (mtp)) | |
234 | { | |
235 | voptgenerror | |
236 | (FLG_SYNTAX, | |
237 | message ("Non-global state declaration uses postconditions clause. " | |
238 | "Should use transfers clause instead: %s", | |
239 | mtDeclarationNode_getName (node)), | |
240 | mtDeclarationNode_getLoc (node)); | |
241 | mtContextNode_free (mtcontext); | |
242 | return; | |
243 | } | |
244 | ||
245 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_TRANSFERS); | |
246 | ||
247 | if (mtDeclarationPiece_isUndefined (mtp)) | |
248 | { | |
249 | voptgenerror (FLG_SYNTAX, | |
250 | message ("Metastate declaration missing transfers clause: %s", | |
251 | mtDeclarationNode_getName (node)), | |
252 | mtDeclarationNode_getLoc (node)); | |
253 | mtContextNode_free (mtcontext); | |
254 | return; | |
255 | } | |
256 | else | |
257 | { | |
258 | mtTransferClauseList mtransfers = mtDeclarationPiece_getTransfers (mtp); | |
259 | tsc = stateCombinationTable_create (nvalues); | |
260 | ||
261 | mtTransferClauseList_elements (mtransfers, transfer) | |
262 | { | |
263 | cstring tfrom = mtTransferClause_getFrom (transfer); | |
264 | cstring tto = mtTransferClause_getTo (transfer); | |
265 | mtTransferAction taction = mtTransferClause_getAction (transfer); | |
266 | cstring vname = mtTransferAction_getValue (taction); | |
267 | ||
268 | int fromindex; | |
269 | int toindex; | |
270 | int vindex; | |
271 | ||
272 | DPRINTF (("Transfer: %s", mtTransferClause_unparse (transfer))); | |
273 | ||
274 | if (cstringList_contains (mvals, tfrom)) | |
275 | { | |
276 | fromindex = cstringList_getIndex (mvals, tfrom); | |
277 | } | |
278 | else | |
279 | { | |
280 | voptgenerror | |
281 | (FLG_SYNTAX, | |
282 | message ("Transfer clause uses unrecognized from value %s: %q", | |
283 | tfrom, mtTransferClause_unparse (transfer)), | |
284 | mtTransferClause_getLoc (transfer)); | |
285 | continue; | |
286 | } | |
287 | ||
288 | if (cstringList_contains (mvals, tto)) | |
289 | { | |
290 | toindex = cstringList_getIndex (mvals, tto); | |
291 | } | |
292 | else | |
293 | { | |
294 | voptgenerror | |
295 | (FLG_SYNTAX, | |
296 | message ("Transfer clause uses unrecognized to value %s: %q", | |
297 | tto, mtTransferClause_unparse (transfer)), | |
298 | mtTransferClause_getLoc (transfer)); | |
299 | continue; | |
300 | } | |
301 | ||
302 | if (mtTransferAction_isError (taction)) | |
303 | { | |
304 | vindex = metaState_error; | |
305 | } | |
306 | else | |
307 | { | |
308 | if (cstringList_contains (mvals, vname)) | |
309 | { | |
310 | vindex = cstringList_getIndex (mvals, vname); | |
311 | } | |
312 | else | |
313 | { | |
314 | voptgenerror | |
315 | (FLG_SYNTAX, | |
316 | message ("Transfer clause uses unrecognized result state %s: %q", | |
317 | vname, mtTransferClause_unparse (transfer)), | |
318 | mtTransferClause_getLoc (transfer)); | |
319 | continue; | |
320 | } | |
321 | } | |
322 | ||
323 | if (mtTransferAction_isError (taction)) | |
324 | { | |
325 | stateCombinationTable_set | |
326 | (tsc, fromindex, toindex, | |
327 | vindex, | |
328 | cstring_copy (mtTransferAction_getMessage (taction))); | |
329 | } | |
330 | else | |
331 | { | |
332 | stateCombinationTable_set (tsc, fromindex, toindex, | |
333 | vindex, | |
334 | cstring_undefined); | |
335 | } | |
336 | } end_mtTransferClauseList_elements ; | |
337 | } | |
338 | } | |
339 | ||
340 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_LOSERS); | |
341 | ||
342 | if (mtDeclarationPiece_isDefined (mtp)) | |
343 | { | |
344 | mtLoseReferenceList mlosers = mtDeclarationPiece_getLosers (mtp); | |
345 | ||
346 | mtLoseReferenceList_elements (mlosers, loseref) | |
347 | { | |
348 | cstring tfrom = mtLoseReference_getFrom (loseref); | |
349 | mtTransferAction taction = mtLoseReference_getAction (loseref); | |
350 | int fromindex; | |
351 | /* Losing reference is represented by transfer to nvalues */ | |
352 | int toindex = nvalues; | |
353 | int vindex = metaState_error; | |
354 | ||
355 | llassert (mtTransferAction_isError (taction)); | |
356 | ||
357 | if (cstringList_contains (mvals, tfrom)) | |
358 | { | |
359 | fromindex = cstringList_getIndex (mvals, tfrom); | |
360 | } | |
361 | else | |
362 | { | |
363 | voptgenerror | |
364 | (FLG_SYNTAX, | |
365 | message ("Lose reference uses unrecognized from value %s: %q", | |
366 | tfrom, mtLoseReference_unparse (loseref)), | |
367 | mtLoseReference_getLoc (loseref)); | |
368 | continue; | |
369 | } | |
370 | ||
371 | /*@-usedef@*/ | |
372 | stateCombinationTable_set | |
373 | (tsc, fromindex, toindex, vindex, | |
374 | cstring_copy (mtTransferAction_getMessage (taction))); | |
375 | /*@=usedef@*/ | |
376 | } end_mtLoseReferenceList_elements ; | |
377 | } | |
378 | ||
379 | /*@-usedef@*/ | |
380 | DPRINTF (("metastate: %s", metaStateInfo_unparse (msinfo))); | |
381 | /*@=usedef@*/ | |
382 | ||
383 | tmerge = stateCombinationTable_create (nvalues); | |
384 | ||
385 | /* Default merge is to make all incompatible mergers errors. */ | |
386 | ||
387 | for (i = 0; i < nvalues; i++) | |
388 | { | |
389 | for (j = 0; j < nvalues; j++) | |
390 | { | |
391 | if (i != j) | |
392 | { | |
393 | stateCombinationTable_set | |
394 | (tmerge, i, j, metaState_error, | |
395 | cstring_makeLiteral ("Incompatible state merge (default behavior)")); | |
396 | } | |
397 | } | |
398 | } | |
399 | ||
400 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_MERGE); | |
401 | ||
402 | if (mtDeclarationPiece_isDefined (mtp)) | |
403 | { | |
404 | mtMergeNode mtmerge = mtDeclarationPiece_getMerge (mtp); | |
405 | mtMergeClauseList mclauses = mtMergeNode_getClauses (mtmerge); | |
406 | ||
407 | DPRINTF (("Merge node: %s", mtMergeNode_unparse (mtmerge))); | |
408 | ||
409 | mtMergeClauseList_elements (mclauses, merge) | |
410 | { | |
411 | mtMergeItem item1 = mtMergeClause_getItem1 (merge); | |
412 | mtMergeItem item2 = mtMergeClause_getItem2 (merge); | |
413 | mtTransferAction taction = mtMergeClause_getAction (merge); | |
414 | int low1index, high1index; | |
415 | int low2index, high2index; | |
416 | int vindex; | |
417 | ||
418 | DPRINTF (("Merge %s X %s => %s", | |
419 | mtMergeItem_unparse (item1), | |
420 | mtMergeItem_unparse (item2), | |
421 | mtTransferAction_unparse (taction))); | |
422 | ||
423 | if (!mtMergeItem_isStar (item1)) | |
424 | { | |
425 | if (cstringList_contains (mvals, mtMergeItem_getValue (item1))) | |
426 | { | |
427 | low1index = cstringList_getIndex (mvals, mtMergeItem_getValue (item1)); | |
428 | high1index = low1index; | |
429 | } | |
430 | else | |
431 | { | |
432 | voptgenerror | |
433 | (FLG_SYNTAX, | |
434 | message ("Merge clause uses unrecognized first value %s: %q", | |
435 | mtMergeItem_getValue (item1), | |
436 | mtMergeClause_unparse (merge)), | |
437 | mtMergeClause_getLoc (merge)); | |
438 | continue; | |
439 | } | |
440 | } | |
441 | else | |
442 | { | |
443 | low1index = 0; | |
444 | high1index = nvalues - 1; | |
445 | } | |
446 | ||
447 | if (!mtMergeItem_isStar (item2)) | |
448 | { | |
449 | if (cstringList_contains (mvals, mtMergeItem_getValue (item2))) | |
450 | { | |
451 | low2index = cstringList_getIndex (mvals, mtMergeItem_getValue (item2)); | |
452 | high2index = low2index; | |
453 | } | |
454 | else | |
455 | { | |
456 | voptgenerror | |
457 | (FLG_SYNTAX, | |
458 | message ("Merge clause uses unrecognized second value %s: %q", | |
459 | mtMergeItem_getValue (item2), | |
460 | mtMergeClause_unparse (merge)), | |
461 | mtMergeItem_getLoc (item2)); | |
462 | continue; | |
463 | } | |
464 | } | |
465 | else | |
466 | { | |
467 | low2index = 0; | |
468 | high2index = nvalues - 1; | |
469 | } | |
470 | ||
471 | if (mtTransferAction_isError (taction)) | |
472 | { | |
473 | vindex = metaState_error; | |
474 | } | |
475 | else | |
476 | { | |
477 | cstring vname = mtTransferAction_getValue (taction); | |
478 | ||
479 | if (cstringList_contains (mvals, vname)) | |
480 | { | |
481 | vindex = cstringList_getIndex (mvals, vname); | |
482 | } | |
483 | else | |
484 | { | |
485 | voptgenerror | |
486 | (FLG_SYNTAX, | |
487 | message ("Merge clause uses unrecognized result state %s: %q", | |
488 | vname, mtMergeClause_unparse (merge)), | |
489 | mtTransferAction_getLoc (taction)); | |
490 | continue; | |
491 | } | |
492 | } | |
493 | ||
494 | for (i = low1index; i <= high1index; i++) | |
495 | { | |
496 | for (j = low2index; j <= high2index; j++) | |
497 | { | |
498 | /*@i32 check for multiple definitions! */ | |
499 | ||
500 | if (mtTransferAction_isError (taction)) | |
501 | { | |
502 | stateCombinationTable_update | |
503 | (tmerge, | |
504 | i, j, | |
505 | vindex, | |
506 | cstring_copy (mtTransferAction_getMessage (taction))); | |
507 | } | |
508 | else | |
509 | { | |
510 | stateCombinationTable_update | |
511 | (tmerge, | |
512 | i, j, | |
513 | vindex, | |
514 | cstring_undefined); | |
515 | } | |
516 | } | |
517 | } | |
518 | } end_mtMergeClauseList_elements ; | |
519 | } | |
520 | ||
521 | msinfo = metaStateInfo_create (cstring_copy (mtDeclarationNode_getName (node)), | |
522 | cstringList_copy (mvals), | |
523 | mtcontext, | |
524 | /*@-usedef@*/ tsc, /*@=usedef@*/ | |
525 | tmerge, | |
526 | fileloc_copy (mtDeclarationNode_getLoc (node))); | |
527 | ||
528 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_ANNOTATIONS); | |
529 | ||
530 | if (mtDeclarationPiece_isDefined (mtp)) | |
531 | { | |
532 | mtAnnotationsNode mtannots = mtDeclarationPiece_getAnnotations (mtp); | |
533 | mtAnnotationList mtalist = mtAnnotationsNode_getAnnotations (mtannots); | |
534 | ||
535 | DPRINTF (("Has annotations: %s", mtAnnotationList_unparse (mtalist))); | |
536 | ||
537 | mtAnnotationList_elements (mtalist, annot) | |
538 | { | |
539 | cstring aname = mtAnnotationDecl_getName (annot); | |
540 | cstring avalue = mtAnnotationDecl_getValue (annot); | |
541 | ||
542 | DPRINTF (("Process annotation: %s", mtAnnotationDecl_unparse (annot))); | |
543 | ||
544 | if (cstringList_contains (mvals, avalue)) | |
545 | { | |
546 | int vindex = cstringList_getIndex (mvals, avalue); | |
547 | mtContextNode acontext = mtAnnotationDecl_stealContext (annot); | |
548 | ||
549 | context_addAnnotation | |
550 | (annotationInfo_create (cstring_copy (aname), msinfo, | |
551 | acontext, vindex, | |
552 | fileloc_copy (mtAnnotationDecl_getLoc (annot)))); | |
553 | } | |
554 | else | |
555 | { | |
556 | voptgenerror | |
557 | (FLG_SYNTAX, | |
558 | message ("Annotation declaration uses unrecognized value name %s: %q", | |
559 | avalue, mtAnnotationDecl_unparse (annot)), | |
560 | mtAnnotationDecl_getLoc (annot)); | |
561 | } | |
562 | ||
563 | } end_mtAnnotationList_elements ; | |
564 | } | |
565 | ||
566 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_DEFAULTS); | |
567 | ||
568 | if (mtDeclarationPiece_isDefined (mtp)) | |
569 | { | |
570 | mtDefaultsNode mdn = mtDeclarationPiece_getDefaults (mtp); | |
571 | mtDefaultsDeclList mdecls = mtDefaultsNode_getDecls (mdn); | |
572 | ||
573 | llassert (!isglobal); | |
574 | ||
575 | mtDefaultsDeclList_elements (mdecls, mdecl) | |
576 | { | |
577 | mtContextNode mcontext = mtDefaultsDecl_getContext (mdecl); | |
578 | cstring mvalue = mtDefaultsDecl_getValue (mdecl); | |
579 | ||
580 | if (cstringList_contains (mvals, mvalue)) | |
581 | { | |
582 | int vindex = cstringList_getIndex (mvals, mvalue); | |
583 | ||
584 | if (mtContextNode_isRef (mcontext)) | |
585 | { | |
586 | if (metaStateInfo_getDefaultRefValue (msinfo) != stateValue_error) | |
587 | { | |
588 | voptgenerror | |
589 | (FLG_SYNTAX, | |
590 | message ("Duplicate defaults declaration for context %q: %q", | |
591 | mtContextNode_unparse (mcontext), | |
592 | mtDefaultsDecl_unparse (mdecl)), | |
593 | mtDefaultsDecl_getLoc (mdecl)); | |
594 | } | |
595 | else | |
596 | { | |
597 | metaStateInfo_setDefaultRefValue (msinfo, vindex); | |
598 | } | |
599 | } | |
600 | else if (mtContextNode_isParameter (mcontext)) | |
601 | { | |
602 | if (metaStateInfo_getDefaultParamValue (msinfo) != stateValue_error) | |
603 | { | |
604 | voptgenerror | |
605 | (FLG_SYNTAX, | |
606 | message ("Duplicate defaults declaration for context %q: %q", | |
607 | mtContextNode_unparse (mcontext), | |
608 | mtDefaultsDecl_unparse (mdecl)), | |
609 | mtDefaultsDecl_getLoc (mdecl)); | |
610 | } | |
611 | else | |
612 | { | |
613 | metaStateInfo_setDefaultParamValue (msinfo, vindex); | |
614 | } | |
615 | } | |
616 | else | |
617 | { | |
618 | BADBRANCH; | |
619 | } | |
620 | } | |
621 | else | |
622 | { | |
623 | voptgenerror | |
624 | (FLG_SYNTAX, | |
625 | message ("Defaults declaration uses unrecognized value name %s: %q", | |
626 | mvalue, mtDefaultsDecl_unparse (mdecl)), | |
627 | mtDefaultsDecl_getLoc (mdecl)); | |
628 | } | |
629 | } end_mtDefaultsDeclList_elements ; | |
630 | } | |
631 | ||
632 | mtp = mtDeclarationPieces_findPiece (pieces, MTP_DEFAULTVALUE); | |
633 | ||
634 | if (mtDeclarationPiece_isDefined (mtp)) | |
635 | { | |
636 | cstring mvalue = mtDeclarationPiece_getDefaultValue (mtp); | |
637 | llassert (isglobal); | |
638 | ||
639 | if (cstringList_contains (mvals, mvalue)) | |
640 | { | |
641 | int vindex = cstringList_getIndex (mvals, mvalue); | |
642 | ||
643 | if (metaStateInfo_getDefaultRefValue (msinfo) != stateValue_error) | |
644 | { | |
645 | voptgenerror | |
646 | (FLG_SYNTAX, | |
647 | message ("Duplicate default value declaration for global state: %s", | |
648 | mvalue), | |
649 | mtDeclarationNode_getLoc (node)); | |
650 | } | |
651 | else | |
652 | { | |
653 | metaStateInfo_setDefaultRefValue (msinfo, vindex); | |
654 | } | |
655 | } | |
656 | else | |
657 | { | |
658 | voptgenerror | |
659 | (FLG_SYNTAX, | |
660 | message ("Default value declaration uses unrecognized value name: %s", | |
661 | mvalue), | |
662 | mtDeclarationNode_getLoc (node)); | |
663 | } | |
664 | } | |
665 | ||
666 | context_addMetaState (cstring_copy (mtDeclarationNode_getName (node)), | |
667 | msinfo); | |
668 | } | |
669 | ||
670 | extern void mtDeclarationNode_free (/*@only@*/ mtDeclarationNode node) | |
671 | { | |
672 | mtDeclarationPieces_free (node->pieces); | |
673 | cstring_free (node->name); | |
674 | fileloc_free (node->loc); | |
675 | sfree (node); | |
676 | } | |
677 | ||
678 | extern fileloc mtDeclarationNode_getLoc (mtDeclarationNode node) | |
679 | { | |
680 | return node->loc; | |
681 | } | |
682 | ||
683 | extern /*@observer@*/ cstring mtDeclarationNode_getName (mtDeclarationNode node) | |
684 | { | |
685 | return node->name; | |
686 | } |