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616915dd 1/*
2** LCLint - annotation-assisted static program checker
28bf4b0b 3** Copyright (C) 1994-2001 University of Virginia,
616915dd 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** uentry.c
26*/
27
28# include "lclintMacros.nf"
29# include "basic.h"
30# include "structNames.h"
31# include "nameChecks.h"
32
616915dd 33static /*@dependent@*/ uentry posRedeclared = uentry_undefined;
34static /*@only@*/ fileloc posLoc = fileloc_undefined;
35static int nuentries = 0;
36static int totuentries = 0;
37
38static void checkGlobalsModifies (/*@notnull@*/ uentry p_ue, sRefSet p_sr) ;
39static void uentry_setDeclDef (uentry p_e, fileloc p_f) /*@modifies p_e@*/ ;
40static bool uentry_isRefCounted (uentry p_ue) /*@*/ ;
41static bool uentry_isRefsField (uentry p_ue) /*@*/ ;
42static bool uentry_isReallySpecified (uentry p_e) /*@*/ ;
43static void uentry_checkIterArgs (uentry p_ue);
44static cstring uentry_dumpAux (uentry p_v, bool p_isParam);
45
28bf4b0b 46static void uentry_combineModifies (uentry p_ue, /*@owned@*/ sRefSet p_sr)
47 /*@modifies p_ue@*/ ;
48
49static void uentry_addStateClause (uentry p_ue, /*@only@*/ stateClause p_sc)
50 /*@modifies p_ue@*/ ;
51
616915dd 52/*@access ekind@*/
53static void checkAliasState (/*@notnull@*/ uentry p_old,
54 /*@notnull@*/ uentry p_unew,
55 bool p_mustConform, bool p_completeConform)
56 /*@modifies p_old, p_unew@*/ ;
57static void checkNullState (/*@notnull@*/ uentry p_old,
58 /*@notnull@*/ uentry p_unew,
59 bool p_mustConform, bool p_completeConform)
60 /*@modifies p_old, p_unew@*/ ;
61
62static void checkVarConformance (/*@notnull@*/ uentry p_old,
63 /*@notnull@*/ uentry p_unew,
64 bool p_mustConform, bool p_completeConform)
65 /*@modifies p_old, p_unew@*/;
66
67# ifndef NOLCL
68static void uentry_setHasMods (uentry p_ue) /*@modifies p_ue@*/;
69static void uentry_setHasGlobs (uentry p_ue) /*@modifies p_ue@*/;
70# endif
71
72static void uentry_reallyFree (/*@notnull@*/ /*@only@*/ uentry p_e);
73
74static void uentry_setSpecDef (/*@special@*/ uentry p_e, /*@keep@*/ fileloc p_f)
75 /*@defines p_e->whereSpecified, p_e->whereDeclared, p_e->whereDefined@*/
76 /*@modifies p_e@*/;
77
78static void returnValueError (/*@notnull@*/ uentry p_old, /*@notnull@*/ uentry p_unew);
79static void nargsError (/*@notnull@*/ uentry p_old, /*@notnull@*/ uentry p_unew);
80static /*@observer@*/ cstring paramStorageName (uentry p_ue) /*@*/ ;
81static /*@observer@*/ cstring fcnErrName (uentry p_ue) /*@*/ ;
82static /*@observer@*/ cstring checkedName (chkind p_checked) /*@*/ ;
83static void
84 paramTypeError (/*@notnull@*/ uentry p_old, /*@notnull@*/ uentry p_oldCurrent,
85 ctype p_oldType, /*@notnull@*/ uentry p_unew,
86 /*@notnull@*/ uentry p_newCurrent,
87 ctype p_newType, int p_paramno) /*@modifies g_msgstream@*/ ;
88
89static /*@only@*/ /*@notnull@*/ uentry
90 uentry_makeVariableAux (cstring p_n, ctype p_t, /*@keep@*/ fileloc p_f,
91 /*@exposed@*/ sRef p_s, bool p_priv, vkind p_kind);
92
efd360a3 93static void uentry_convertVarFunction (uentry ue) /*@modifies ue@*/
94{
95 if (uentry_isVariable (ue)
96 && (ctype_isFunction (ctype_realType (uentry_getType (ue)))
97 || ctype_isUnknown (uentry_getType (ue))))
98 {
99 uentry_makeVarFunction (ue);
100 }
101}
102
616915dd 103static /*@out@*/ /*@notnull@*/ uentry uentry_alloc (void) /*@*/
104{
105 uentry ue = (uentry) dmalloc (sizeof (*ue));
28bf4b0b 106 ue->warn = warnClause_undefined; /*@i32@*/
616915dd 107 nuentries++;
108 totuentries++;
109
110 return ue;
111}
112
113static cstring uentry_getOptName (uentry p_e) /*@*/ ;
efd360a3 114static void uentry_updateInto (/*@unique@*/ uentry p_unew, uentry p_old) /*@modifies p_unew, p_old@*/ ;
115
616915dd 116static void uentry_setNullState (/*@notnull@*/ uentry p_ue, nstate p_ns);
117static void uentry_setAliasKind (/*@notnull@*/ uentry p_ue, alkind p_ak);
118static /*@only@*/ /*@null@*/ uinfo uinfo_copy (uinfo p_u, ekind p_kind);
119static void uinfo_free (/*@only@*/ uinfo p_u, ekind p_kind);
b072092f 120static void ucinfo_free (/*@only@*/ ucinfo p_u);
616915dd 121static void uvinfo_free (/*@only@*/ uvinfo p_u);
122
123# ifdef DOANNOTS
124
125static /*@only@*/ cstring ancontext_unparse (ancontext an)
126{
127 switch (an)
128 {
129 case AN_UNKNOWN: return cstring_makeLiteral ("unknown");
130 case AN_FCNRETURN: return cstring_makeLiteral ("return value");
131 case AN_FCNPARAM: return cstring_makeLiteral ("function param");
132 case AN_SUFIELD: return cstring_makeLiteral ("su field");
133 case AN_TDEFN: return cstring_makeLiteral ("type definition");
134 case AN_GSVAR: return cstring_makeLiteral ("global/static var");
135 case AN_CONST: return cstring_makeLiteral ("constant");
136 BADDEFAULT;
137 }
138 BADEXIT;
139}
140
141static int annots[AN_LAST][QU_LAST];
142static int decls[AN_LAST];
143static int shdecls[AN_LAST];
144static int idecls[AN_LAST];
145
146void initAnnots ()
147{
148 int i, j;
149
150 for (i = AN_UNKNOWN; i < AN_LAST; i++)
151 {
152 decls[i] = 0;
153 shdecls[i] = 0;
154 idecls[i] = 0;
155
156 for (j = QU_UNKNOWN; j < QU_LAST; j++)
157 {
158 annots[i][j] = 0;
159 }
160 }
161}
162
163static void tallyAnnot (ancontext ac, qual q)
164{
165 (annots[ac][q])++;
166}
167
168void printAnnots ()
169{
170 int total[QU_LAST];
171 int alltotals = 0;
172 int totdecls = 0;
173 int totshdecls = 0;
174 int totidecls = 0;
175 int i, j;
176
177 for (j = QU_UNKNOWN; j < QU_LAST; j++)
178 {
179 total[j] = 0;
180 }
181
182 for (i = AN_UNKNOWN; i < AN_LAST; i++)
183 {
184 int tmptot;
185
186 if (decls[i] > 0)
187 {
188 printf ("Context: %s (%d declarations, %d sharable, %d indirect)\n",
189 ancontext_unparse (i),
190 decls[i], shdecls[i], idecls[i]);
191
192 totdecls += decls[i];
193 totshdecls += shdecls[i];
194 totidecls += idecls[i];
195
196 for (j = QU_UNKNOWN; j < QU_LAST; j++)
197 {
198 total[j] += annots[i][j];
199 alltotals += annots[i][j];
200 }
201
202 printf (" Allocation:\n");
203
204 tmptot = 0;
205
206 for (j = QU_UNKNOWN; j < QU_LAST; j++)
207 {
208 if (qual_isAliasQual (j) && !qual_isUnique (j))
209 {
210 if (annots[i][j] > 0)
211 {
212 printf ("\t%10s: %5d (%3.2f%%)\n", qual_unparse (j), annots[i][j],
213 100.0 * (double)annots[i][j] / (double)decls[i]);
214 tmptot += annots[i][j];
215 }
216 }
217 }
218
219 printf (" Exposure:\n");
220
221 tmptot = 0;
222
223 for (j = QU_UNKNOWN; j < QU_LAST; j++)
224 {
225 if (qual_isExQual (j))
226 {
227 if (annots[i][j] > 0)
228 {
229 printf ("\t%10s: %5d (%3.2f%%)\n", qual_unparse (j), annots[i][j],
230 100.0 * (double)annots[i][j] / (double)decls[i]);
231 tmptot += annots[i][j];
232 }
233 }
234 }
235
236 printf (" Definition:\n");
237
238 for (j = QU_UNKNOWN; j < QU_LAST; j++)
239 {
240 if (qual_isAllocQual (j))
241 {
242 if (annots[i][j] > 0)
243 {
244 printf ("\t%10s: %5d (%3.2f%%)\n", qual_unparse (j), annots[i][j],
245 100.0 * (double)annots[i][j] / (double)decls[i]);
246 }
247 }
248 }
249
250 printf (" Null:\n");
251
252 for (j = QU_UNKNOWN; j < QU_LAST; j++)
253 {
254 if (qual_isNull (j) || qual_isNotNull (j) || qual_isRelNull (j))
255 {
256 if (annots[i][j] > 0)
257 {
258 printf ("\t%10s: %5d (%3.2f%%)\n", qual_unparse (j), annots[i][j],
259 100.0 * (double)annots[i][j] / (double)decls[i]);
260 }
261 }
262 }
263
264 printf ("\n");
265 }
266 }
267
268 for (j = QU_UNKNOWN; j < QU_LAST; j++)
269 {
270 bool hasone = FALSE;
271
272 for (i = AN_UNKNOWN; i < AN_LAST; i++)
273 {
274 if (annots[i][j] > 0)
275 {
276 hasone = TRUE;
277 break;
278 }
279 }
280
281 if (hasone)
282 {
283 printf ("Annotation: %s\n", qual_unparse (j));
284
285 for (i = AN_UNKNOWN; i < AN_LAST; i++)
286 {
287 if (annots[i][j] > 0)
288 {
289 printf ("%25s: %5d\n", ancontext_unparse (i), annots[i][j]);
290 }
291 }
292 printf ("\n");
293 }
294 }
295
296 printf ("All Contexts\n");
297
298 for (j = QU_UNKNOWN; j < QU_LAST; j++)
299 {
300 if (total[j] > 0)
301 {
302 printf ("%10s: %5d (%3.2f%%)\n", qual_unparse (j), total[j],
303 100.0 * (double)total[j] / (double)(totdecls));
304 }
305 }
306 printf ("\n");
307
4ab867d6 308 printf ("Total Annotations: %d (%d decls, %d sharable, %d indirect)\n", alltotals, totdecls, totshdecls, totidecls); }
616915dd 309
310extern void uentry_tallyAnnots (uentry u, ancontext kind)
311{
312 alkind ak = sRef_getAliasKind (u->sref);
313 exkind ek = sRef_getExKind (u->sref);
314 nstate ns = sRef_getNullState (u->sref);
315 sstate ss = sRef_getDefState (u->sref);
316 bool recordUnknown = FALSE;
616915dd 317
318 if (kind == AN_UNKNOWN)
319 {
320 ekind e = u->ukind;
321
322 if (e == KENDITER)
323 {
324 return;
325 }
326 else if (e == KCONST || e == KENUMCONST)
327 {
328 kind = AN_CONST;
329 }
330 else if (e == KFCN || e == KITER)
331 {
332 uentryList params = uentry_getParams (u);
333 bool hasRet = FALSE;
334
335 uentryList_elements (params, current)
336 {
337 if (uentry_isReturned (current))
338 {
339 hasRet = TRUE;
340 }
341 if (!uentry_isElipsisMarker (current))
342 {
343 uentry_tallyAnnots (current, AN_FCNPARAM);
344 }
345 } end_uentryList_elements;
346
347 kind = AN_FCNRETURN;
348
349 if (ctype_isFunction (u->utype)
350 && !hasRet
28bf4b0b 351 && ctype_isVisiblySharable (ctype_realType (ctype_getReturnType (u->utype))))
616915dd 352 {
353 recordUnknown = TRUE;
354 }
355 }
356 else if (e == KDATATYPE || e == KSTRUCTTAG || e == KUNIONTAG || e == KENUMTAG)
357 {
358 ctype t = ctype_realType (u->utype);
359
360 if (ctype_isSU (t))
361 {
362 uentryList fields = ctype_getFields (t);
363
364 uentryList_elements (fields, current)
365 {
366 uentry_tallyAnnots (current, AN_SUFIELD);
367 }
368 } end_uentryList_elements;
369
370 kind = AN_TDEFN;
371
372 if (ctype_isVisiblySharable (u->utype))
373 {
374 recordUnknown = TRUE;
375 }
376 }
377 else
378 {
379 kind = AN_GSVAR;
380
381
382 if (ctype_isVisiblySharable (ctype_realType (u->utype)))
383 {
384 recordUnknown = TRUE;
385 }
386 }
387 }
388
389 decls[kind]++;
390
391 if (kind == AN_FCNRETURN)
392 {
393 if (recordUnknown)
394 {
395 shdecls[kind]++;
396 idecls[kind]++;
397 }
398 else
399 {
400 ;
401 }
402 }
403 else
404 {
405 if (ctype_isVisiblySharable (ctype_realType (u->utype)))
406 {
407 shdecls[kind]++;
408 }
409
410 if (ctype_isRealPointer (ctype_realType (u->utype)))
411 {
412 idecls[kind]++;
413 }
414 }
415
616915dd 416 switch (ss)
417 {
418 case SS_ALLOCATED: tallyAnnot (kind, QU_OUT); break;
419 case SS_PARTIAL: tallyAnnot (kind, QU_PARTIAL); break;
420 case SS_RELDEF: tallyAnnot (kind, QU_RELDEF); break;
421 case SS_SPECIAL: tallyAnnot (kind, QU_SPECIAL); break;
422 default: break;
423 }
424
425 if (uentry_isReturned (u))
426 {
427 tallyAnnot (kind, QU_RETURNED);
428 }
429
430 switch (ak)
431 {
432 case AK_UNKNOWN:
433 if (ctype_isRefCounted (ctype_realType (u->utype))
434 || (ctype_isFunction (u->utype) &&
28bf4b0b 435 ctype_isRefCounted (ctype_realType (ctype_getReturnType (u->utype)))))
616915dd 436 {
437 ;
438 }
439 else
440 {
441 if (kind == AN_FCNPARAM)
442 {
443 tallyAnnot (kind, QU_TEMP);
444 }
445 else if (recordUnknown)
446 {
447 if (kind == AN_FCNRETURN)
448 {
449 }
450 tallyAnnot (kind, QU_UNKNOWN);
451 }
452 }
453 break;
454 case AK_ONLY: tallyAnnot (kind, QU_ONLY); break;
455 case AK_IMPONLY: tallyAnnot (kind, QU_ONLY); break;
456 case AK_KEEP: tallyAnnot (kind, QU_KEEP); break;
457 case AK_KEPT: tallyAnnot (kind, QU_KEPT); break;
458 case AK_IMPTEMP:
459 case AK_TEMP: tallyAnnot (kind, QU_TEMP); break;
460 case AK_SHARED: tallyAnnot (kind, QU_SHARED); break;
461 case AK_UNIQUE: tallyAnnot (kind, QU_UNIQUE); break;
462 case AK_RETURNED: tallyAnnot (kind, QU_RETURNED); break;
463 case AK_REFCOUNTED: tallyAnnot (kind, QU_UNKNOWN); break;
464 case AK_REFS: tallyAnnot (kind, QU_REFS); break;
465 case AK_KILLREF: tallyAnnot (kind, QU_KILLREF); break;
466 case AK_NEWREF: tallyAnnot (kind, QU_NEWREF); break;
467 case AK_OWNED: tallyAnnot (kind, QU_OWNED); break;
468 case AK_IMPDEPENDENT:
469 case AK_DEPENDENT: tallyAnnot (kind, QU_DEPENDENT); break;
470 case AK_ERROR:
471 case AK_FRESH:
472 case AK_STACK:
473 case AK_LOCAL:
474 break;
475 }
476
477 switch (ek)
478 {
479 case XO_EXPOSED: tallyAnnot (kind, QU_EXPOSED); break;
480 case XO_OBSERVER: tallyAnnot (kind, QU_OBSERVER); break;
481 default: break;
482 }
483
484 switch (ns)
485 {
486 case NS_ERROR: break;
487 case NS_UNKNOWN: break;
488 case NS_NOTNULL: break;
489 case NS_MNOTNULL: tallyAnnot (kind, QU_NOTNULL); break;
490 case NS_RELNULL: tallyAnnot (kind, QU_RELNULL); break;
491 case NS_CONSTNULL: tallyAnnot (kind, QU_NULL); break;
492 case NS_POSNULL: tallyAnnot (kind, QU_NULL); break;
493 case NS_DEFNULL:
494 case NS_ABSNULL: break;
495 }
496}
497
498# endif
499
500static /*@observer@*/ cstring specCode_unparse (specCode s) /*@*/
501{
502 switch (s)
503 {
504 case SPC_NONE: return cstring_makeLiteralTemp ("normal");
505 case SPC_PRINTFLIKE: return cstring_makeLiteralTemp ("printflike");
506 case SPC_SCANFLIKE: return cstring_makeLiteralTemp ("scanflike");
507 case SPC_MESSAGELIKE: return cstring_makeLiteralTemp ("messagelike");
508 case SPC_LAST: return cstring_makeLiteralTemp ("<error>");
509 }
510
511 BADEXIT;
512}
513
514static specCode specCode_fromInt (int i)
515{
516 /*@+enumint@*/
517 llassert (i >= SPC_NONE && i < SPC_LAST);
518
519 return ((specCode) i);
520 /*@=enumint@*/
521}
522
523/*@observer@*/ cstring uentry_specOrDefName (uentry u)
524{
525 if (uentry_isDeclared (u))
526 {
527 return cstring_makeLiteralTemp ("previously declared");
528 }
529 else
530 {
531 return cstring_makeLiteralTemp ("specified");
532 }
533}
534
535/*@observer@*/ cstring uentry_specDeclName (uentry u)
536{
537 if (uentry_isDeclared (u))
538 {
539 return cstring_makeLiteralTemp ("previous declaration");
540 }
541 else
542 {
543 return cstring_makeLiteralTemp ("specification");
544 }
545}
546
547static /*@observer@*/ cstring uentry_reDefDecl (uentry old, uentry unew) /*@*/
548{
549 if (uentry_isCodeDefined (old) && uentry_isCodeDefined (unew))
550 {
551 return cstring_makeLiteralTemp ("redefined");
552 }
553 else if (uentry_isCodeDefined (unew))
554 {
555 return cstring_makeLiteralTemp ("defined");
556 }
557 else if (uentry_isDeclared (old) && uentry_isDeclared (unew))
558 {
559 return cstring_makeLiteralTemp ("redeclared");
560 }
561 else
562 {
563 return cstring_makeLiteralTemp ("declared");
564 }
565}
566
ccf0a4a8 567static constraintList uentry_getFunctionConditions (uentry ue, bool isPost)
616915dd 568{
569 if (uentry_isValid (ue))
570 {
ccf0a4a8 571 functionConstraint constraint;
616915dd 572
28bf4b0b 573 DPRINTF( (message ("called uentry_getFcnPostconditions on %s",
ccf0a4a8 574 uentry_unparse (ue) ) ) );
575
576 if (uentry_isVariable (ue) && ctype_isFunction (uentry_getType (ue)))
616915dd 577 {
ccf0a4a8 578 DPRINTF( (message ("called uentry_getFunctionConditions on nonfunction %s",
579 uentry_unparse (ue) ) ) );
580 if (!uentry_isFunction (ue) )
616915dd 581 {
ccf0a4a8 582 DPRINTF((message ("called uentry_getFunctionConditions on nonfunction %s",
583 uentry_unparse (ue) ) ));
584 return constraintList_undefined;
28bf4b0b 585 }
ccf0a4a8 586
587
588 return constraintList_undefined;
589 }
590
591 if (!uentry_isFunction(ue))
592 {
593
594 DPRINTF( (message ("called uentry_getFunctionConditions on non function %s",
595 uentry_unparse (ue) ) ) );
596 return constraintList_undefined;
597
598 }
3814599d 599
ccf0a4a8 600 llassert (uentry_isFunction (ue));
3814599d 601
ccf0a4a8 602 if (isPost)
603 {
604 constraint = ue->info->fcn->postconditions;
616915dd 605 }
ccf0a4a8 606 else
607 {
608 constraint = ue->info->fcn->preconditions;
609 }
610
611 return functionConstraint_getBufferConstraints (constraint);
616915dd 612 }
613
614 return constraintList_undefined;
615
616}
617
ccf0a4a8 618/*drl7x*/
619/*@only@*/ constraintList uentry_getFcnPreconditions (uentry ue)
620{
621 return uentry_getFunctionConditions (ue, FALSE);
622}
623
624/*drl
625 12/28/2000
626*/
627
628constraintList uentry_getFcnPostconditions (uentry ue)
629{
630 return uentry_getFunctionConditions (ue, TRUE);
631}
616915dd 632
633static /*@only@*/ fileloc setLocation (void)
634{
635 fileloc fl = context_getSaveLocation ();
636
637 if (fileloc_isDefined (fl))
638 {
639 return fl;
640 }
641 else
642 {
643 return fileloc_copy (g_currentloc);
644 }
645}
646
b9904f57 647static void uentry_setConstantValue (uentry ue, /*@only@*/ multiVal val)
648{
649 llassert (uentry_isEitherConstant (ue));
650 sRef_setValue (ue->sref, val);
651}
652
616915dd 653/*@notnull@*/ uentry uentry_makeEnumConstant (cstring n, ctype t)
654{
655 fileloc loc = setLocation ();
656 uentry ue = uentry_makeConstant (n, t, loc);
657
658 ue->ukind = KENUMCONST;
659 uentry_setDefined (ue, loc);
660 return ue;
661}
662
663/*@notnull@*/ uentry uentry_makeEnumInitializedConstant (cstring n, ctype t, exprNode expr)
664{
665 fileloc loc = setLocation ();
666 uentry ue = uentry_makeConstant (n, t, loc);
667 ctype etype = exprNode_getType (expr);
668
669 if (!ctype_isRealInt (etype)) {
670 voptgenerror
671 (FLG_ENUMMEMBERS,
672 message
673 ("Value of enum member is not an integeral type (type %s): %s",
674 ctype_unparse (etype), exprNode_unparse (expr)),
675 exprNode_loc (expr));
676 }
677
678 ue->ukind = KENUMCONST;
679 uentry_setDefined (ue, loc);
680 return ue;
681}
682
683# ifndef NOLCL
684/*@notnull@*/ uentry uentry_makeSpecEnumConstant (cstring n, ctype t, fileloc loc)
685{
686 uentry ue = uentry_makeConstant (n, t, loc);
687
688 ue->ukind = KENUMCONST;
689 return ue;
690}
691# endif
692
693/*@notnull@*/ uentry uentry_makeVariableLoc (cstring n, ctype t)
694{
695 return uentry_makeVariable (n, t, setLocation (), FALSE);
696}
697
698# ifndef NOLCL
699/*@notnull@*/ /*@only@*/ uentry uentry_makeUnnamedVariable (ctype t)
700{
701 return uentry_makeVariable (cstring_undefined, t, setLocation (), FALSE);
702}
703# endif
704
705/*@notnull@*/ uentry uentry_makeIdDatatype (idDecl id)
706{
707 ctype ct = idDecl_getCtype (id);
708 uentry ue = uentry_makeDatatype (idDecl_observeId (id), ct,
709 MAYBE, MAYBE, setLocation ());
710
711 uentry_reflectQualifiers (ue, idDecl_getQuals (id));
712
713 if (!ynm_isOn (ue->info->datatype->abs))
714 {
715 if (ctype_isUnknown (ct))
716 {
717 ue->info->datatype->mut = MAYBE;
718 }
719 else
720 {
721 ue->info->datatype->mut = ynm_fromBool (ctype_isMutable (ct));
722 }
723 }
724
725 return ue;
726}
727
728void uentry_checkParams (uentry ue)
729{
730 if (uentry_isValid (ue))
731 {
732 bool isExt = uentry_isExtern (ue);
733
734 if (uentry_isRealFunction (ue))
735 {
736 uentryList params = uentry_getParams (ue);
737
738 uentryList_elements (params, current)
739 {
740 if (uentry_isValid (current))
741 {
742 ctype ct = current->utype;
743
744 if (ctype_isFixedArray (ct))
745 {
746 if (ctype_isArray (ctype_baseArrayPtr (ct))
747 && !ctype_isFixedArray (ctype_baseArrayPtr (ct)))
748 {
749 ;
750 }
751 else
752 {
753 voptgenerror
754 (FLG_FIXEDFORMALARRAY,
755 message ("Function parameter %q declared as "
756 "manifest array (size constant is meaningless)",
757 uentry_getName (current)),
758 uentry_whereDeclared (current));
759 }
760 }
761 else
762 {
763 if (ctype_isArray (ct))
764 {
765 voptgenerror
766 (FLG_FORMALARRAY,
767 message ("Function parameter %q declared as "
768 "array (treated as pointer)",
769 uentry_getName (current)),
770 uentry_whereDeclared (current));
771 }
772 }
773
774 if (sRef_getNullState (uentry_getSref (current)) == NS_MNOTNULL)
775 {
776 if (ctype_isAbstract (ct) &&
777 (isExt || (ctype_isAbstract (ctype_realType (ct))
778 && !context_hasFileAccess (ctype_typeId (ct)))))
779 {
780 vgenhinterror
781 (FLG_INCONDEFS,
782 message
783 ("Function %q declared with notnull parameter %q of abstract "
784 "type %s",
785 uentry_getName (ue),
786 uentry_getName (current),
787 ctype_unparse (ct)),
788 message
789 ("Since %s is an abstract type, notnull can only be "
790 "used for parameters if the function is static to a "
791 "module where %s is accessible.",
792 ctype_unparse (ct),
793 ctype_unparse (ct)),
794 uentry_whereDeclared (current));
795 }
796 }
797 }
798 } end_uentryList_elements;
799
800 if (sRef_getNullState (uentry_getSref (ue)) == NS_MNOTNULL)
801 {
802 ctype ct = ue->utype;
803
804 if (ctype_isAbstract (ct)
805 && (isExt || (ctype_isAbstract (ctype_realType (ct))
806 && !context_hasFileAccess (ctype_typeId (ct)))))
807 {
808 vgenhinterror
809 (FLG_INCONDEFS,
810 message
811 ("%s %q declared %s notnull storage of abstract type %s",
812 ekind_capName (uentry_getKind (ue)),
813 uentry_getName (ue),
814 fcnErrName (ue),
815 ctype_unparse (ct)),
816 message
817 ("Since %s is an abstract type, notnull can only be used "
818 "if it is static to a module where %s is accessible.",
819 ctype_unparse (ct),
820 ctype_unparse (ct)),
821 uentry_whereDeclared (ue));
822 }
823 }
824 }
825 }
826}
827
828static void reflectImplicitFunctionQualifiers (/*@notnull@*/ uentry ue, bool spec)
829{
830 alkind ak = sRef_getAliasKind (ue->sref);
831
832 if (alkind_isRefCounted (ak))
833 {
834 sRef_setAliasKind (ue->sref, AK_NEWREF, fileloc_undefined);
835 }
836 else
837 {
838 if (alkind_isUnknown (ak))
839 {
840 exkind ek = sRef_getExKind (ue->sref);
841
842 if (exkind_isKnown (ek))
843 {
28bf4b0b 844 DPRINTF (("Setting imp dependent: %s",
845 uentry_unparseFull (ue)));
616915dd 846 sRef_setAliasKind (ue->sref, AK_IMPDEPENDENT, fileloc_undefined);
847 }
848 else
849 {
850 if (context_getFlag (spec ? FLG_SPECRETIMPONLY : FLG_RETIMPONLY))
851 {
28bf4b0b 852 /* evans 2000-12-22 removed ctype_realType so it will
853 not apply to immutable abstract types. */
854
616915dd 855 if (ctype_isVisiblySharable
28bf4b0b 856 (ctype_realType (ctype_getReturnType (ue->utype))))
616915dd 857 {
858 if (uentryList_hasReturned (uentry_getParams (ue)))
859 {
860 ;
861 }
28bf4b0b 862 else
616915dd 863 {
28bf4b0b 864 if (ctype_isImmutableAbstract (ctype_getReturnType (ue->utype)))
865 {
866 ; /* Immutable objects are not shared. */
867 }
868 else
869 {
870 sRef_setAliasKind (ue->sref, AK_IMPONLY,
871 fileloc_undefined);
872 DPRINTF (("Ret imp only: %s",
873 ctype_unparse (ctype_getReturnType (ue->utype))));
874 }
875 }
616915dd 876 }
877 }
878 }
879 }
880 }
881}
882
883static /*@notnull@*/ uentry
884uentry_makeFunctionAux (cstring n, ctype t,
885 typeIdSet access,
886 /*@only@*/ globSet globs,
28bf4b0b 887 /*@only@*/ sRefSet mods,
888 /*@only@*/ warnClause warn,
616915dd 889 /*@keep@*/ fileloc f, bool priv,
890 /*@unused@*/ bool isForward)
891{
892 uentry e = uentry_alloc ();
893 ctype ret;
894
28bf4b0b 895 llassert (warnClause_isUndefined (warn)); /*@i325 remove parameter! */
896
ccf0a4a8 897 DPRINTF (("Make function: %s", n));
898
616915dd 899 if (ctype_isFunction (t))
900 {
28bf4b0b 901 ret = ctype_getReturnType (t);
616915dd 902 }
903 else
904 {
905 if (ctype_isKnown (t))
906 {
907 llbug (message ("not function: %s", ctype_unparse (t)));
908 }
909 ret = ctype_unknown;
910 }
911
912 e->ukind = KFCN;
913
914 if (fileloc_isSpec (f) || fileloc_isImport (f))
915 {
916 e->whereSpecified = f;
917 e->whereDeclared = fileloc_undefined;
918 }
919 else
920 {
921 e->whereSpecified = fileloc_undefined;
922 e->whereDeclared = f;
923 }
924
925 /* e->shallowCopy = FALSE; */
926 e->uname = cstring_copy (n);
927 e->utype = t;
928 e->storageclass = SCNONE;
929
b072092f 930 e->sref = sRef_makeResult (ret); /* evans 2001-07-19 - was sRef_makeType */
931
932 DPRINTF (("Result: %s", sRef_unparseFull (e->sref)));
616915dd 933
934 if (ctype_isUA (ret))
935 {
936 sRef_setStateFromType (e->sref, ret);
937 }
938
939 e->used = FALSE;
940 e->lset = FALSE;
941 e->uses = filelocList_new ();
942 e->isPrivate = priv;
943 e->hasNameError = FALSE;
944
28bf4b0b 945 e->warn = warn;
946
616915dd 947 e->info = (uinfo) dmalloc (sizeof (*e->info));
948 e->info->fcn = (ufinfo) dmalloc (sizeof (*e->info->fcn));
949
950 e->info->fcn->hasMods = sRefSet_isDefined (mods);
951 e->info->fcn->hasGlobs = globSet_isDefined (globs);
952
953 e->info->fcn->exitCode = XK_UNKNOWN;
28bf4b0b 954 e->info->fcn->nullPred = qual_createUnknown ();
616915dd 955 e->info->fcn->specialCode = SPC_NONE;
956
957 e->info->fcn->access = access;
958 e->info->fcn->globs = globs;
959 e->info->fcn->defparams = uentryList_undefined;
960
961 sRef_setDefined (e->sref, f);
962 e->whereDefined = fileloc_undefined;
963
964 e->info->fcn->mods = sRefSet_undefined;
965 e->info->fcn->specclauses = NULL;
966
967 /*drl 11 29 2000*/
968 e->info->fcn->preconditions = NULL;
969 /*end drl*/
970
971 /*drl 12 28 2000*/
972 e->info->fcn->postconditions = NULL;
973 /*end drl*/
974
975 checkGlobalsModifies (e, mods);
976 e->info->fcn->mods = mods;
977
978 return (e);
979}
980
28bf4b0b 981static void uentry_reflectClauses (uentry ue, functionClauseList clauses)
982{
983 functionClauseList_elements (clauses, el)
984 {
985 DPRINTF (("Reflect clause: %s on %s",
986 functionClause_unparse (el), uentry_getName (ue)));
987
988 if (functionClause_isNoMods (el))
989 {
990 modifiesClause mel = functionClause_getModifies (el);
991
992 if (uentry_hasGlobs (ue))
993 {
994 voptgenerror
995 (FLG_SYNTAX,
996 message
997 ("No globals and modifies inconsistent to globals clause for %q: %q",
998 uentry_getName (ue),
999 globSet_unparse (uentry_getGlobs (ue))),
1000 modifiesClause_getLoc (mel));
1001
1002 }
1003
1004 if (uentry_hasMods (ue))
1005 {
1006 voptgenerror
1007 (FLG_SYNTAX,
1008 message
1009 ("No globals and modifies inconsistent to modifies clause for %q: %q",
1010 uentry_getName (ue),
1011 sRefSet_unparse (uentry_getMods (ue))),
1012 modifiesClause_getLoc (mel));
1013 }
1014
1015 uentry_setGlobals (ue, globSet_undefined);
1016 uentry_setModifies (ue, sRefSet_undefined);
1017 }
1018 else if (functionClause_isGlobals (el))
1019 {
1020 globalsClause glc = functionClause_getGlobals (el);
1021
1022 DPRINTF (("Globals: %s / %s", uentry_unparse (ue),
1023 globalsClause_unparse (glc)));
1024
1025 if (uentry_hasGlobs (ue))
1026 {
1027 voptgenerror
1028 (FLG_SYNTAX,
1029 message
1030 ("Multiple globals clauses for %q: %q",
1031 uentry_getName (ue),
1032 globalsClause_unparse (glc)),
1033 globalsClause_getLoc (glc));
1034 uentry_setGlobals (ue, globalsClause_takeGlobs (glc)); /*@i32@*/
1035 }
1036 else
1037 {
1038 uentry_setGlobals (ue, globalsClause_takeGlobs (glc));
1039 }
1040 }
1041 else if (functionClause_isModifies (el))
1042 {
1043 modifiesClause mlc = functionClause_getModifies (el);
1044
1045 DPRINTF (("Has modifies: %s", uentry_unparseFull (ue)));
1046
1047 if (uentry_hasMods (ue))
1048 {
1049 /*
1050 ** Not an error:
1051
1052 if (optgenerror
1053 (FLG_SYNTAX,
1054 message
1055 ("Multiple modifies clauses for %s: %s",
1056 uentry_getName (ue),
1057 modifiesClause_unparse (mlc)),
1058 modifiesClause_getLoc (mlc)))
1059 {
1060 llhint (message ("Previous modifies clause: ",
1061 sRefSet_unparse (uentry_getMods (ue))));
1062 }
1063
1064 **
1065 */
1066
1067 uentry_combineModifies (ue, modifiesClause_takeMods (mlc)); /*@i32@*/
1068 }
1069 else
1070 {
1071 uentry_setModifies (ue, modifiesClause_takeMods (mlc));
1072 }
1073 }
d9a28762 1074 else if (functionClause_isEnsures (el))
1075 {
3814599d 1076 functionConstraint cl = functionClause_takeEnsures (el);
ba45e1e4 1077 DPRINTF (("Setting post: %s / %s",
1078 uentry_unparse (ue), functionConstraint_unparse (cl)));
d9a28762 1079 uentry_setPostconditions (ue, cl);
1080 }
1081 else if (functionClause_isRequires (el))
1082 {
3814599d 1083 functionConstraint cl = functionClause_takeRequires (el);
d9a28762 1084 uentry_setPreconditions (ue, cl);
1085 }
28bf4b0b 1086 else if (functionClause_isState (el))
1087 {
1088 stateClause sc = functionClause_takeState (el);
ccf0a4a8 1089
1090 if (stateClause_isBefore (sc) && stateClause_setsMetaState (sc))
1091 {
1092 sRefSet rfs = stateClause_getRefs (sc);
1093
1094 sRefSet_elements (rfs, s)
1095 {
1096 if (sRef_isParam (s))
1097 {
1098 /*
1099 ** Can't use requires on parameters
1100 */
1101
1102 voptgenerror
1103 (FLG_ANNOTATIONERROR,
1104 message ("Requires clauses for %q concerns parameters %q should be "
1105 "a parameter annotation instead: %q",
1106 uentry_unparse (ue),
1107 sRef_unparse (s),
1108 stateClause_unparse (sc)),
1109 stateClause_loc (sc));
1110 }
1111 } end_sRefSet_elements ;
1112 }
1113
1114 DPRINTF (("State clause: %s", stateClause_unparse (sc)));
28bf4b0b 1115 uentry_addStateClause (ue, sc);
1116 }
1117 else if (functionClause_isWarn (el))
1118 {
1119 warnClause wc = functionClause_takeWarn (el);
1120 uentry_addWarning (ue, wc);
1121 }
1122 else
1123 {
1124 DPRINTF (("Unhandled clause: %s", functionClause_unparse (el)));
1125 }
1126 } end_functionClauseList_elements ;
1127
ccf0a4a8 1128 DPRINTF (("Checking all: %s", sRef_unparseFull (ue->sref)));
28bf4b0b 1129 stateClauseList_checkAll (ue);
1130}
1131
616915dd 1132/*@notnull@*/ uentry uentry_makeIdFunction (idDecl id)
1133{
28bf4b0b 1134 bool leaveFunc = FALSE;
616915dd 1135 uentry ue =
1136 uentry_makeFunction (idDecl_observeId (id), idDecl_getCtype (id),
1137 typeId_invalid, globSet_undefined,
28bf4b0b 1138 sRefSet_undefined, warnClause_undefined,
616915dd 1139 setLocation ());
28bf4b0b 1140
ccf0a4a8 1141 DPRINTF (("Id function: %s", sRef_unparseFull (ue->sref)));
1142
28bf4b0b 1143 /*
1144 ** This makes parameters names print out correctly.
1145 ** (But we might be a local variable declaration for a function type...)
1146 */
1147
1148 if (context_inFunctionLike ())
1149 {
1150 DPRINTF (("Header: %s / %s",
1151 uentry_unparse (context_getHeader ()),
1152 idDecl_unparse (id)));
1153 }
1154 else
1155 {
1156 context_enterFunctionDeclaration (ue);
1157 leaveFunc = TRUE;
1158 }
1159
ccf0a4a8 1160 DPRINTF (("Id function: %s", sRef_unparseFull (ue->sref)));
616915dd 1161 uentry_reflectQualifiers (ue, idDecl_getQuals (id));
ccf0a4a8 1162 DPRINTF (("Id function: %s", sRef_unparseFull (ue->sref)));
616915dd 1163 reflectImplicitFunctionQualifiers (ue, FALSE);
ccf0a4a8 1164 DPRINTF (("Id function: %s", sRef_unparseFull (ue->sref)));
28bf4b0b 1165 uentry_reflectClauses (ue, idDecl_getClauses (id));
ccf0a4a8 1166 DPRINTF (("Id function: %s", sRef_unparseFull (ue->sref)));
28bf4b0b 1167
616915dd 1168 if (!uentry_isStatic (ue)
1169 && cstring_equalLit (ue->uname, "main"))
1170 {
1171 ctype typ = ue->utype;
1172 ctype retval;
1173 uentryList args;
1174
1175 llassert (ctype_isFunction (typ));
1176
28bf4b0b 1177 retval = ctype_getReturnType (typ);
616915dd 1178
1179 if (!ctype_isInt (retval))
1180 {
1181 voptgenerror
1182 (FLG_MAINTYPE,
1183 message ("Function main declared to return %s, should return int",
1184 ctype_unparse (retval)),
1185 uentry_whereDeclared (ue));
1186 }
1187
1188 args = ctype_argsFunction (typ);
1189
1190 if (uentryList_isMissingParams (args)
1191 || uentryList_size (args) == 0)
1192 {
1193 ;
1194 }
1195 else
1196 {
1197 if (uentryList_size (args) != 2)
1198 {
1199 voptgenerror
1200 (FLG_MAINTYPE,
28bf4b0b 1201 message ("Function main declared with %d arg%&, "
616915dd 1202 "should have 2 (int argc, char *argv[])",
1203 uentryList_size (args)),
1204 uentry_whereLast (ue));
1205 }
1206 else
1207 {
1208 uentry arg = uentryList_getN (args, 0);
1209 ctype ct = uentry_getType (arg);
1210
1211 if (!ctype_isInt (ct))
1212 {
1213 voptgenerror
1214 (FLG_MAINTYPE,
1215 message ("Parameter 1, %q, of function main declared "
1216 "with type %t, should have type int",
1217 uentry_getName (arg), ct),
1218 uentry_whereDeclared (arg));
1219 }
1220
1221 arg = uentryList_getN (args, 1);
1222 ct = uentry_getType (arg);
1223
1224 if (ctype_isArrayPtr (ct)
1225 && ctype_isArrayPtr (ctype_baseArrayPtr (ct))
1226 && ctype_isChar (ctype_baseArrayPtr (ctype_baseArrayPtr (ct))))
1227 {
1228 ;
1229 }
1230 else
1231 {
1232 voptgenerror
1233 (FLG_MAINTYPE,
1234 message ("Parameter 2, %q, of function main declared "
1235 "with type %t, should have type char **",
1236 uentry_getName (arg), ct),
1237 uentry_whereDeclared (arg));
1238 }
1239 }
1240 }
1241 }
1242
28bf4b0b 1243 if (leaveFunc)
1244 {
1245 context_exitFunctionDeclaration ();
1246 }
1247
616915dd 1248 return ue;
1249}
1250
1251static void uentry_implicitParamAnnots (/*@notnull@*/ uentry e)
1252{
1253 alkind ak = sRef_getAliasKind (e->sref);
1254
1255 if ((alkind_isUnknown (ak) || alkind_isImplicit (ak))
1256 && context_getFlag (FLG_PARAMIMPTEMP))
1257 {
1258 exkind ek = sRef_getExKind (e->sref);
1259
1260 if (exkind_isKnown (ek))
1261 {
28bf4b0b 1262 DPRINTF (("imp dep: %s", uentry_unparseFull (e)));
616915dd 1263 sRef_setAliasKind (e->sref, AK_IMPDEPENDENT, fileloc_undefined);
1264 sRef_setOrigAliasKind (e->sref, AK_IMPDEPENDENT);
1265 }
1266 else
1267 {
1268 sRef_setAliasKind (e->sref, AK_IMPTEMP, fileloc_undefined);
1269 sRef_setOrigAliasKind (e->sref, AK_IMPTEMP);
1270 }
1271 }
1272}
1273
1274static /*@only@*/ /*@notnull@*/ uentry
6970c11b 1275uentry_makeVariableParamAux (cstring n, ctype t, /*@dependent@*/ sRef s,
1276 /*@only@*/ fileloc loc, sstate defstate) /*@i32 exposed*/
616915dd 1277{
1278 cstring pname = makeParam (n);
28bf4b0b 1279 uentry e;
1280
1281 DPRINTF (("Sref: %s", sRef_unparseFull (s)));
6970c11b 1282 e = uentry_makeVariableAux (pname, t, loc, s, FALSE, VKPARAM);
616915dd 1283
1284 cstring_free (pname);
28bf4b0b 1285 DPRINTF (("Param: %s", uentry_unparseFull (e)));
616915dd 1286 uentry_implicitParamAnnots (e);
28bf4b0b 1287 DPRINTF (("Param: %s", uentry_unparseFull (e)));
616915dd 1288
1289 if (!sRef_isAllocated (e->sref) && !sRef_isPartial (e->sref))
1290 {
28bf4b0b 1291 DPRINTF (("Param: %s", uentry_unparseFull (e)));
616915dd 1292 sRef_setDefState (e->sref, defstate, uentry_whereDeclared (e));
1293 e->info->var->defstate = defstate;
1294 }
1295
28bf4b0b 1296 DPRINTF (("Param: %s", uentry_unparseFull (e)));
616915dd 1297 return (e);
1298}
1299
1300# ifndef NOLCL
1301void
1302uentry_setRefCounted (uentry e)
1303{
1304 if (uentry_isValid (e))
1305 {
1306 uentry_setAliasKind (e, AK_REFCOUNTED);
1307 sRef_storeState (e->sref);
1308 }
1309}
1310# endif
1311
1312void
1313uentry_setStatic (uentry c)
1314{
1315 if (uentry_isValid (c))
1316 {
1317 alkind ak = sRef_getAliasKind (c->sref);
1318 c->storageclass = SCSTATIC;
1319
1320 if (uentry_isVariable (c) && !ctype_isFunction (uentry_getType (c)))
1321 {
1322 if (!alkind_isUnknown (ak)
1323 && !alkind_isStatic (ak))
1324 {
1325 if (!(ctype_isRealPointer (uentry_getType (c)))
1326 && !(ctype_isAbstract (ctype_realType (uentry_getType (c))))
1327 && !alkind_isRefCounted (ak))
1328 {
1329 if (alkind_isImplicit (ak)
1330 && alkind_isDependent (ak)
1331 && ctype_isArray (uentry_getType (c)))
1332 {
1333 ; /* no error for observer arrays */
1334 }
1335 else
1336 {
1337 voptgenerror
1338 (FLG_INCONDEFS,
1339 message ("Static storage %q declared as %s",
1340 uentry_getName (c),
1341 alkind_unparse (ak)),
1342 uentry_whereDeclared (c));
1343 }
1344 }
1345 }
1346 else
1347 {
1348 if (alkind_isUnknown (ak)
1349 || (alkind_isImplicit (sRef_getAliasKind (c->sref))
1350 && !alkind_isDependent (sRef_getAliasKind (c->sref))))
1351 {
1352 sRef_setAliasKind (c->sref, AK_STATIC, fileloc_undefined);
1353 sRef_setOrigAliasKind (c->sref, AK_STATIC);
1354 }
1355 }
1356 }
1357 }
1358}
1359
1360void
1361uentry_setExtern (uentry c)
1362{
1363 if (uentry_isValid (c))
1364 c->storageclass = SCEXTERN;
1365}
1366
1367void
1368uentry_setParamNo (uentry ue, int pno)
1369{
1370 llassert (uentry_isAnyParam (ue) && sRef_isParam (ue->sref));
1371 sRef_setParamNo (ue->sref, pno);
1372}
1373
1374static
1375void checkGlobalsModifies (/*@notnull@*/ uentry ue, sRefSet sr)
1376{
1377 sRefSet_allElements (sr, el)
1378 {
1379 sRef base = sRef_getRootBase (el);
1380
28bf4b0b 1381 if (sRef_isFileOrGlobalScope (base) || sRef_isInternalState (base)
616915dd 1382 || (sRef_isKindSpecial (base) && !sRef_isNothing (base)))
1383 {
1384 if (!globSet_member (ue->info->fcn->globs, base))
1385 {
1386 if (uentry_hasGlobs (ue)
1387 || context_getFlag (FLG_WARNMISSINGGLOBALSNOGLOBS))
1388 {
1389 if (optgenerror
1390 (FLG_WARNMISSINGGLOBALS,
1391 message
1392 ("Modifies list for %q uses global %q, "
1393 "not included in globals list.",
1394 uentry_getName (ue),
1395 sRef_unparse (base)),
1396 uentry_whereLast (ue)))
1397 {
1398 uentry_showWhereSpecified (ue);
1399 }
1400 }
1401
1402 ue->info->fcn->globs = globSet_insert (ue->info->fcn->globs,
1403 base);
1404 if (sRef_isFileStatic (base))
1405 {
1406 context_recordFileGlobals (ue->info->fcn->globs);
1407 }
1408 }
1409 }
1410 } end_sRefSet_allElements;
1411}
1412
1413uentry
6970c11b 1414uentry_makeVariableSrefParam (cstring n, ctype t, /*@only@*/ fileloc loc, /*@exposed@*/ sRef s)
616915dd 1415{
6970c11b 1416 return (uentry_makeVariableParamAux (n, t, s, loc, SS_UNKNOWN));
616915dd 1417}
1418
1419void
1420uentry_fixupSref (uentry ue)
1421{
1422 sRef sr;
1423
1424 if (uentry_isUndefined (ue) || uentry_isElipsisMarker (ue))
1425 {
1426 return;
1427 }
1428
1429 sr = uentry_getSref (ue);
1430
1431 sRef_resetState (sr);
1432 sRef_clearDerived (sr);
1433
1434 llassertprint (uentry_isVariable (ue), ("fixing: %s", uentry_unparseFull (ue)));
1435 llassert (sRef_isValid (sr));
1436
1437 if (uentry_isVariable (ue))
1438 {
1439 sRef_setDefState (sr, ue->info->var->defstate, fileloc_undefined);
1440 sRef_setNullState (sr, ue->info->var->nullstate, fileloc_undefined);
1441 }
1442}
1443
28bf4b0b 1444static void uentry_addStateClause (uentry ue, stateClause sc)
1445{
1446 /*
1447 ** Okay to allow multiple clauses of the same kind.
1448 */ /*@i834 is this true?@*/
1449
1450 ue->info->fcn->specclauses =
1451 stateClauseList_add (ue->info->fcn->specclauses, sc);
1452
1453 /* Will call checkAll to check later... */
1454}
1455
1456void uentry_setStateClauseList (uentry ue, stateClauseList clauses)
616915dd 1457{
1458 llassert (uentry_isFunction (ue));
28bf4b0b 1459 llassert (!stateClauseList_isDefined (ue->info->fcn->specclauses));
616915dd 1460
28bf4b0b 1461 DPRINTF (("checked clauses: %s", stateClauseList_unparse (clauses)));
616915dd 1462 ue->info->fcn->specclauses = clauses;
28bf4b0b 1463 stateClauseList_checkAll (ue);
1464 DPRINTF (("checked clauses: %s", uentry_unparseFull (ue)));
616915dd 1465}
1466
1467/*
1468** Used for @modifies@ @endmodifies@ syntax.
1469**
1470** If ue is specified, sr must contain *only*:
1471**
1472** o file static globals
1473** o sRef's derived from modifies spec (i.e., more specific than
1474** what was specified)
1475**
1476** Otherwise, if sr has modifies it must match sr.
1477**
1478** If it doesn't have modifies, set them to sr.
1479*/
1480
28bf4b0b 1481static bool
1482uentry_checkModifiesContext (void)
616915dd 1483{
1484 if (sRef_modInFunction ())
1485 {
1486 llparseerror
28bf4b0b 1487 (message
1488 ("Modifies list not in function context. "
1489 "A modifies list can only appear following the parameter list "
1490 "in a function declaration or header."));
1491
1492 return FALSE;
616915dd 1493 }
28bf4b0b 1494
1495 return TRUE;
1496}
616915dd 1497
28bf4b0b 1498void
1499uentry_setModifies (uentry ue, /*@owned@*/ sRefSet sr)
1500{
1501 if (!uentry_checkModifiesContext ())
616915dd 1502 {
28bf4b0b 1503 sRefSet_free (sr);
1504 return;
616915dd 1505 }
1506
1507 if (uentry_isValid (ue))
1508 {
1509 if (uentry_isIter (ue))
1510 {
1511 llassert (sRefSet_isUndefined (ue->info->iter->mods));
1512 ue->info->iter->mods = sr;
1513 }
1514 else
1515 {
efd360a3 1516 uentry_convertVarFunction (ue);
616915dd 1517 llassertfatal (uentry_isFunction (ue));
1518 llassert (sRefSet_isUndefined (ue->info->fcn->mods));
1519
1520 ue->info->fcn->mods = sr;
1521 ue->info->fcn->hasMods = TRUE;
1522
1523 checkGlobalsModifies (ue, sr);
1524 }
1525
1526 if (context_getFlag (FLG_MODIFIESIMPNOGLOBALS))
1527 {
1528 ue->info->fcn->hasGlobs = TRUE;
1529 }
28bf4b0b 1530
1531 if (sRefSet_hasStatic (ue->info->fcn->mods))
1532 {
1533 context_recordFileModifies (ue->info->fcn->mods);
1534 }
616915dd 1535 }
1536 else
1537 {
1538 sRefSet_free (sr);
1539 }
1540}
1541
28bf4b0b 1542static void
1543uentry_combineModifies (uentry ue, /*@owned@*/ sRefSet sr)
1544{
1545 /*
1546 ** Function already has one modifies clause (possibly from
1547 ** a specification).
1548 */
1549
1550 if (!uentry_checkModifiesContext ())
1551 {
1552 BADBRANCH;
1553 }
1554
1555 llassert (uentry_isValid (ue));
1556
1557 if (uentry_isIter (ue))
1558 {
1559 ue->info->iter->mods = sRefSet_unionFree (ue->info->iter->mods, sr);
1560 }
1561 else
1562 {
1563 llassertfatal (uentry_isFunction (ue));
1564 llassert (ue->info->fcn->hasMods);
1565
1566 checkGlobalsModifies (ue, sr);
1567 ue->info->fcn->mods = sRefSet_unionFree (ue->info->fcn->mods, sr);
1568
1569 if (context_getFlag (FLG_MODIFIESIMPNOGLOBALS))
1570 {
1571 ue->info->fcn->hasGlobs = TRUE;
1572 }
1573 }
1574
1575 if (sRefSet_hasStatic (ue->info->fcn->mods))
1576 {
1577 context_recordFileModifies (ue->info->fcn->mods);
1578 }
1579}
1580
1581bool uentry_hasWarning (uentry ue)
1582{
1583 return (uentry_isValid (ue)
1584 && warnClause_isDefined (ue->warn));
1585}
1586
1587void uentry_addWarning (uentry ue, /*@only@*/ warnClause warn)
1588{
1589 llassert (warnClause_isUndefined (ue->warn));
1590 ue->warn = warn;
1591}
1592
616915dd 1593void
3814599d 1594uentry_setPreconditions (uentry ue, /*@only@*/ functionConstraint preconditions)
616915dd 1595{
1596 if (sRef_modInFunction ())
1597 {
1598 llparseerror
1599 (message ("Precondition list not in function context. "
1600 "A precondition list can only appear following the parameter list "
1601 "in a function declaration or header."));
1602
1603 /*@-mustfree@*/ return; /*@=mustfree@*/
1604 }
1605
1606 if (uentry_isValid (ue))
1607 {
efd360a3 1608 uentry_convertVarFunction (ue);
1609 llassertfatal (uentry_isFunction (ue));
3814599d 1610
efd360a3 1611 if (functionConstraint_isDefined (ue->info->fcn->preconditions))
1612 {
1613 BADBRANCH; /* should conjoin constraints? */
1614 /*@notreached@*/
1615 ue->info->fcn->preconditions = functionConstraint_conjoin (ue->info->fcn->preconditions, preconditions);
1616 }
1617 else
1618 {
1619 ue->info->fcn->preconditions = preconditions;
1620 }
616915dd 1621 }
1622 else
1623 {
920a3797 1624 llfatalbug ( (message("uentry_setPreconditions called with invalid uentry") ));
616915dd 1625 }
1626}
1627
1628/*
1629 drl
1630 added 12/28/2000
1631*/
1632void
3814599d 1633uentry_setPostconditions (uentry ue, /*@only@*/ functionConstraint postconditions)
616915dd 1634{
1635 if (sRef_modInFunction ())
1636 {
1637 llparseerror
1638 (message ("Postcondition list not in function context. "
1639 "A postcondition list can only appear following the parameter list "
1640 "in a function declaration or header."));
3814599d 1641
616915dd 1642 /*@-mustfree@*/ return; /*@=mustfree@*/
1643 }
1644
1645 if (uentry_isValid (ue))
1646 {
efd360a3 1647 uentry_convertVarFunction (ue);
1648 llassertfatal (uentry_isFunction (ue));
1649
1650 if (functionConstraint_isUndefined (ue->info->fcn->postconditions))
1651 {
1652 ue->info->fcn->postconditions = postconditions;
1653 }
1654 else
1655 {
efd360a3 1656 ue->info->fcn->postconditions = functionConstraint_conjoin (ue->info->fcn->postconditions, postconditions);
1657 }
616915dd 1658 }
1659 else
1660 {
920a3797 1661 llfatalbug ( (message("uentry_setPostconditions called with invalid uentry") ));
616915dd 1662 }
1663}
1664
1665/*
1666** requires: new and old are functions
1667*/
1668
1669static void
1670checkGlobalsConformance (/*@notnull@*/ uentry old,
1671 /*@notnull@*/ uentry unew,
1672 bool mustConform, bool completeConform)
1673{
1674 bool hasInternalState = FALSE;
1675
1676 old->info->fcn->hasGlobs |= unew->info->fcn->hasGlobs;
1677
1678 if (globSet_isDefined (unew->info->fcn->globs))
1679 {
1680 globSet_allElements (unew->info->fcn->globs, el)
1681 {
1682 if (sRef_isFileStatic (el))
1683 {
1684 sRef sr = globSet_lookup (old->info->fcn->globs, el);
1685
1686 if (sRef_isInvalid (sr))
1687 {
1688 bool hasError = FALSE;
1689
1690 if (!hasInternalState
1691 && sRef_isInvalid (globSet_lookup (old->info->fcn->globs,
1692 sRef_makeInternalState ()))
1693 && sRef_isInvalid (globSet_lookup (old->info->fcn->globs,
1694 sRef_makeSpecState ())))
1695 {
1696 if (mustConform
1697 && !uentry_isStatic (old)
1698 && optgenerror
1699 (FLG_INCONDEFS,
1700 message ("Globals list for %q includes internal state, %q, "
1701 "but %s without globals internalState.",
1702 uentry_getName (old),
1703 sRef_unparse (el),
1704 uentry_specOrDefName (old)),
1705 uentry_whereLast (unew)))
1706 {
1707 uentry_showWhereSpecified (old);
1708 hasError = TRUE;
1709 }
1710
1711 old->info->fcn->globs = globSet_insert (old->info->fcn->globs,
1712 sRef_makeInternalState ());
1713 hasInternalState = TRUE;
1714 }
1715
1716 if (!hasError
1717 && fileloc_sameFile (uentry_whereDeclared (unew),
1718 uentry_whereDeclared (old)))
1719 {
1720 if (mustConform
1721 && optgenerror
1722 (FLG_INCONDEFS,
1723 message ("Function %q inconsistently %rdeclared (in "
1724 "same file) with file static global %q in "
1725 "globals list",
1726 uentry_getName (unew),
1727 uentry_isDeclared (old),
1728 sRef_unparse (el)),
1729 uentry_whereDeclared (unew)))
1730 {
1731 uentry_showWhereSpecified (old);
1732 }
1733 }
1734 }
1735
1736 old->info->fcn->globs = globSet_insert (old->info->fcn->globs, el);
1737 context_recordFileGlobals (old->info->fcn->globs);
1738 }
1739 else
1740 {
1741 sRef sr = globSet_lookup (old->info->fcn->globs, el);
1742
1743 if (sRef_isInvalid (sr))
1744 {
1745 if (mustConform
1746 && optgenerror
1747 (FLG_INCONDEFS,
1748 message ("Function %q inconsistently %rdeclared with "
1749 "%q in globals list",
1750 uentry_getName (unew),
1751 uentry_isDeclared (old),
1752 sRef_unparse (el)),
1753 uentry_whereDeclared (unew)))
1754 {
1755 old->info->fcn->globs = globSet_insert (old->info->fcn->globs, el);
1756 uentry_showWhereSpecified (old);
1757 }
1758 }
1759 else
1760 {
1761 if (!bool_equal (sRef_isAllocated (el), sRef_isAllocated (sr)))
1762 {
1763 if (mustConform
1764 && optgenerror
1765 (FLG_INCONDEFS,
1766 message
1767 ("Function %q global %q inconsistently "
1768 "%rdeclared as %qout global",
1769 uentry_getName (unew),
1770 sRef_unparse (el),
1771 uentry_isDeclared (old),
1772 cstring_makeLiteral (sRef_isAllocated (el) ? "" : "non-")),
1773 uentry_whereDeclared (unew)))
1774 {
1775 uentry_showWhereSpecified (old);
1776 }
1777 }
1778 }
1779 }
1780 } end_globSet_allElements ;
1781
1782 if (completeConform)
1783 {
1784 globSet_allElements (old->info->fcn->globs, el)
1785 {
1786 sRef sr = globSet_lookup (unew->info->fcn->globs, el);
1787
1788 if (sRef_isInvalid (sr))
1789 {
1790 if (mustConform
1791 && uentry_isReallySpecified (old)
1792 && optgenerror
1793 (FLG_NEEDSPEC,
1794 message ("Function %q specified with %q in globals list, "
1795 "but declared without %q",
1796 uentry_getName (unew),
1797 sRef_unparse (el),
1798 sRef_unparse (el)),
1799 uentry_whereDeclared (unew)))
1800 {
1801 uentry_showWhereSpecified (old);
1802 }
1803 }
1804 } end_globSet_allElements;
1805 }
1806 }
1807 else
1808 {
1809 if (completeConform && !globSet_isEmpty (old->info->fcn->globs))
1810 {
1811 if (uentry_isReallySpecified (old)
1812 && optgenerror
1813 (FLG_NEEDSPEC,
1814 message ("%s %q specified with globals list, but "
1815 "declared with no globals",
1816 ekind_capName (unew->ukind),
1817 uentry_getName (unew)),
1818 uentry_whereDeclared (unew)))
1819 {
1820 llgenindentmsg
1821 (message ("Specification globals: %q",
1822 globSet_unparse (old->info->fcn->globs)),
1823 uentry_whereSpecified (old));
1824 }
1825 }
1826
28bf4b0b 1827 unew->info->fcn->globs = globSet_copyInto (unew->info->fcn->globs,
1828 old->info->fcn->globs);
616915dd 1829 }
1830}
1831
1832/*
1833** new modifies list must be included by old modifies list.
1834**
1835** file static state may be added to new, if old has internal.
1836*/
1837
1838static void
1839checkModifiesConformance (/*@notnull@*/ uentry old, /*@notnull@*/ uentry unew,
1840 bool mustConform, bool completeConform)
1841{
1842 sRefSet newMods;
1843 bool changedMods = FALSE;
1844 bool modInternal = FALSE;
1845
1846 llassert (uentry_isFunction (old) && uentry_isFunction (unew));
1847
1848 old->info->fcn->hasMods |= unew->info->fcn->hasMods;
1849 newMods = unew->info->fcn->mods;
1850
1851 if (sRefSet_isEmpty (newMods))
1852 {
1853 if (completeConform && !sRefSet_isEmpty (old->info->fcn->mods)
1854 && uentry_isReallySpecified (old))
1855 {
1856 if (optgenerror
1857 (FLG_NEEDSPEC,
1858 message ("%s %q specified with modifies clause, "
1859 "but declared with no modifies clause",
1860 ekind_capName (unew->ukind),
1861 uentry_getName (unew)),
1862 uentry_whereDeclared (unew)))
1863 {
1864 llgenindentmsg (message ("Specification has modifies %q",
1865 sRefSet_unparse (old->info->fcn->mods)),
1866 uentry_whereSpecified (old));
1867 }
1868 }
1869
1870 return;
1871 }
1872
1873 sRefSet_allElements (newMods, current)
1874 {
1875 if (sRef_isValid (current))
1876 {
1877 sRef rb = sRef_getRootBase (current);
1878
1879 if (sRef_isFileStatic (rb))
1880 {
1881 if (!modInternal)
1882 {
1883 if (!sRefSet_isSameMember (old->info->fcn->mods,
1884 sRef_makeInternalState ())
1885 && !sRefSet_isSameMember (old->info->fcn->mods,
1886 sRef_makeSpecState ()))
1887 {
1888 if (mustConform
1889 && !uentry_isStatic (old)
1890 && optgenerror
1891 (FLG_INCONDEFS,
1892 message
1893 ("Modifies list for %q includes internal state, "
1894 "but %s without modifies internal.",
1895 uentry_getName (old),
1896 uentry_specOrDefName (old)),
1897 uentry_whereLast (unew)))
1898 {
1899 uentry_showWhereSpecified (old);
1900 }
1901
1902 old->info->fcn->mods =
1903 sRefSet_insert (old->info->fcn->mods,
1904 sRef_makeInternalState ());
1905 modInternal = TRUE;
1906 }
1907 }
1908
1909 old->info->fcn->mods = sRefSet_insert (old->info->fcn->mods,
1910 current);
1911 changedMods = TRUE;
1912 }
1913 else
1914 {
1915 if (sRef_canModifyVal (current, old->info->fcn->mods))
1916 {
1917 int size = sRefSet_size (old->info->fcn->mods);
1918
1919 old->info->fcn->mods = sRefSet_insert (old->info->fcn->mods,
1920 current);
1921
1922 if (sRefSet_size (old->info->fcn->mods) != size)
1923 {
1924 changedMods = TRUE;
1925 }
1926 }
1927 else
1928 {
1929 if (mustConform
1930 && optgenerror
1931 (FLG_INCONDEFS,
1932 message
1933 ("Modifies list for %q contains %q, not modifiable "
1934 "according to %s",
1935 uentry_getName (old),
1936 sRef_unparse (current),
1937 uentry_specDeclName (old)),
1938 uentry_whereLast (unew)))
1939 {
1940 uentry_showWhereSpecified (old);
1941 }
1942 }
1943 }
1944 }
1945 } end_sRefSet_allElements;
1946
1947 if (completeConform && uentry_isReallySpecified (old))
1948 {
1949 sRefSet_allElements (old->info->fcn->mods, el)
1950 {
1951 if (sRef_canModify (el, newMods))
1952 {
1953 ; /* okay */
1954 }
1955 else
1956 {
1957 if (optgenerror
1958 (FLG_NEEDSPEC,
1959 message
1960 ("Specification modifies clause for %q contains %q, "
1961 "not included in declaration modifies clause",
1962 uentry_getName (old),
1963 sRef_unparse (el)),
1964 uentry_whereLast (unew)))
1965 {
1966 uentry_showWhereSpecified (old);
1967 }
1968 }
1969 } end_sRefSet_allElements ;
1970 }
1971
1972 /*
1973 ** Make sure file static elements will be removed.
1974 */
1975
1976 if (changedMods)
1977 {
1978 context_recordFileModifies (old->info->fcn->mods);
1979 }
1980}
1981
1982static void
1983 uentry_checkMutableType (uentry ue)
1984{
1985 ctype ct = uentry_getType (ue);
1986
1987 if (!ctype_isRealPointer (ct) && !ctype_isRealAbstract (ct))
1988 {
28bf4b0b 1989 DPRINTF (("Check mutable: %s", uentry_unparseFull (ue)));
1990
616915dd 1991 voptgenerror (FLG_MUTREP,
1992 message ("Mutable abstract type %q declared without pointer "
1993 "indirection: %t (violates assignment semantics)",
1994 uentry_getName (ue), ct),
1995 uentry_whereDeclared (ue));
1996 }
1997}
1998
1999void
2000uentry_setMutable (uentry e)
2001{
2002 llassert (uentry_isDatatype (e));
2003 e->info->datatype->mut = YES;
2004}
2005
2006static void
2007uentry_checkIterArgs (uentry ue)
2008{
2009 bool hasYield = FALSE;
2010 uentryList args;
2011
2012 llassert (uentry_isIter (ue));
2013
2014 args = uentry_getParams (ue);
2015
2016 uentryList_elements (args, el)
2017 {
2018 sstate ds = uentry_getDefState (el);
2019
2020 if (uentry_isYield (el))
2021 {
2022 hasYield = TRUE;
2023 }
2024
2025 if (sstate_isUnknown (ds))
2026 {
2027 uentry_setDefState (el, SS_DEFINED);
2028 }
2029 else
2030 {
2031 ;
2032 }
2033 } end_uentryList_elements;
2034
2035 if (!hasYield)
2036 {
2037 voptgenerror (FLG_HASYIELD,
2038 message ("Iterator %q declared with no yield parameters",
2039 uentry_getName (ue)),
2040 uentry_whereDeclared (ue));
2041 }
2042}
2043
2044static chkind
2045chkind_fromQual (qual qel)
2046{
2047 if (qual_isChecked (qel))
2048 {
2049 return CH_CHECKED;
2050 }
2051 else if (qual_isCheckMod (qel))
2052 {
2053 return CH_CHECKMOD;
2054 }
2055 else if (qual_isCheckedStrict (qel))
2056 {
2057 return CH_CHECKEDSTRICT;
2058 }
2059 else if (qual_isUnchecked (qel))
2060 {
2061 return CH_UNCHECKED;
2062 }
2063 else
2064 {
2065 BADEXIT;
2066 /*@notreached@*/ return CH_UNKNOWN;
2067 }
2068}
2069
2070static void
2071uentry_reflectOtherQualifier (/*@notnull@*/ uentry ue, qual qel)
2072{
2073 if (qual_isKillRef (qel) || qual_isNewRef (qel) || qual_isTempRef (qel))
2074 {
2075 if (!uentry_isRefCounted (ue))
2076 {
28bf4b0b 2077 voptgenerror
2078 (FLG_ANNOTATIONERROR,
616915dd 2079 message ("Reference counting qualifier %s used on non-reference "
2080 "counted storage: %q",
2081 qual_unparse (qel),
28bf4b0b 2082 uentry_unparse (ue)),
2083 uentry_whereLast (ue));
616915dd 2084 }
2085 else
2086 {
2087 alkind ak = alkind_fromQual (qel);
2088
2089 uentry_setAliasKind (ue, ak);
2090 }
2091 }
2092 else if (qual_isRefCounted (qel))
2093 {
2094 ctype ct = ctype_realType (uentry_getType (ue));
2095 ctype rt;
2096
2097 if (ctype_isPointer (ct)
2098 && (ctype_isStruct (rt = ctype_realType (ctype_baseArrayPtr (ct)))))
2099 {
2100 /* check there is a refs field */
2101 uentryList fields = ctype_getFields (rt);
2102 uentry refs = uentry_undefined;
2103
2104 uentryList_elements (fields, field)
2105 {
2106 if (uentry_isRefsField (field))
2107 {
2108 if (uentry_isValid (refs))
2109 {
28bf4b0b 2110 voptgenerror
2111 (FLG_ANNOTATIONERROR,
616915dd 2112 message ("Reference counted structure type %s has "
2113 "multiple refs fields: %q and %q",
2114 ctype_unparse (ct),
2115 uentry_getName (refs),
28bf4b0b 2116 uentry_getName (field)),
2117 uentry_whereLast (field));
616915dd 2118 }
2119
2120 refs = field;
2121 }
2122 } end_uentryList_elements;
2123
2124 if (uentry_isInvalid (refs))
2125 {
2126 vgenhinterror
2127 (FLG_SYNTAX,
2128 message ("Reference counted structure type %s has "
2129 "no refs field",
2130 ctype_unparse (ct)),
2131 cstring_makeLiteral
2132 ("To count reference, the structure must have a field named "
2133 "refs of type int."),
2134 g_currentloc);
2135 }
2136 else if (!ctype_isInt (uentry_getType (refs)))
2137 {
28bf4b0b 2138 voptgenerror
2139 (FLG_ANNOTATIONERROR,
616915dd 2140 message ("Reference counted structure type %s refs field has "
2141 "type %s (should be int)", ctype_unparse (ct),
28bf4b0b 2142 ctype_unparse (uentry_getType (refs))),
2143 uentry_whereLast (refs));
616915dd 2144 }
2145 else
2146 {
2147 sRef_setAliasKind (ue->sref, alkind_fromQual (qel),
2148 uentry_whereDeclared (ue));
2149 }
2150 }
2151 else
2152 {
2153 if ((ctype_isPointer (ct)
2154 && ctype_isUnknown (ctype_realType (ctype_baseArrayPtr (ct))))
2155 ||ctype_isAbstract (ct) || ctype_isUnknown (ct))
2156 {
2157 sRef_setAliasKind (ue->sref, alkind_fromQual (qel),
2158 uentry_whereDeclared (ue));
2159 }
2160 else
2161 {
28bf4b0b 2162 voptgenerror
2163 (FLG_ANNOTATIONERROR,
616915dd 2164 message ("Non-pointer to structure type %s declared with "
2165 "refcounted qualifier",
28bf4b0b 2166 ctype_unparse (ct)),
2167 uentry_whereLast (ue));
616915dd 2168 }
2169 }
2170 }
2171 else if (qual_isRefs (qel))
2172 {
2173 if (uentry_isVariable (ue) && !uentry_isParam (ue))
2174 {
2175 uentry_setAliasKind (ue, AK_REFS);
2176 }
2177 else
2178 {
28bf4b0b 2179 voptgenerror
2180 (FLG_ANNOTATIONERROR,
616915dd 2181 message ("Refs qualifier used on non-structure field: %q",
28bf4b0b 2182 uentry_unparse (ue)),
2183 uentry_whereLast (ue));
616915dd 2184 }
2185 }
2186 else if (qual_isAliasQual (qel))
2187 {
2188 alkind ak = alkind_fromQual (qel);
2189 bool okay = TRUE;
2190 alkind oldak = uentry_getAliasKind (ue);
2191 ctype ut = uentry_getType (ue);
2192
2193 if (alkind_isImplicit (ak)
2194 && (alkind_isKnown (oldak) && !alkind_isImplicit (oldak)))
2195 {
2196 /* ignore the implied qualifier */
2197 okay = FALSE;
2198 }
2199
2200 if (uentry_isEitherConstant (ue))
2201 {
28bf4b0b 2202 voptgenerror
2203 (FLG_ANNOTATIONERROR,
616915dd 2204 message ("Alias qualifier %s used on constant: %q",
28bf4b0b 2205 alkind_unparse (ak), uentry_unparse (ue)),
2206 uentry_whereLast (ue));
2207
616915dd 2208 okay = FALSE;
2209 }
2210
2211 if (ctype_isFunction (ut))
2212 {
28bf4b0b 2213 ut = ctype_getReturnType (ut);
616915dd 2214 }
2215
2216 if (!(ctype_isVisiblySharable (ut)
2217 || ctype_isRealArray (ut)
2218 || ctype_isRealSU (ut)))
2219 {
2220 if (!qual_isImplied (qel))
2221 {
28bf4b0b 2222 voptgenerror
2223 (FLG_ANNOTATIONERROR,
616915dd 2224 message ("Alias qualifier %s used on unsharable storage type %t: %q",
28bf4b0b 2225 alkind_unparse (ak), ut, uentry_getName (ue)),
2226 uentry_whereLast (ue));
616915dd 2227 }
2228
2229 okay = FALSE;
2230 }
2231 else
2232 {
2233 if (uentry_isRefCounted (ue))
2234 {
2235 if (!(qual_isRefQual (qel) || qual_isOnly (qel)
2236 || qual_isExposed (qel)
2237 || qual_isObserver (qel)))
2238 {
2239 if (!qual_isImplied (qel))
2240 {
28bf4b0b 2241 voptgenerror
2242 (FLG_ANNOTATIONERROR,
616915dd 2243 message
2244 ("Alias qualifier %s used on reference counted storage: %q",
2245 alkind_unparse (ak),
28bf4b0b 2246 uentry_unparse (ue)),
2247 uentry_whereLast (ue));
616915dd 2248 }
2249
2250 okay = FALSE;
2251 }
2252 }
2253 else
2254 {
2255 if (qual_isRefQual (qel))
2256 {
28bf4b0b 2257 voptgenerror
2258 (FLG_ANNOTATIONERROR,
616915dd 2259 message ("Qualifier %s used on non-reference counted storage: %q",
28bf4b0b 2260 alkind_unparse (ak), uentry_unparse (ue)),
2261 uentry_whereLast (ue));
616915dd 2262
2263 okay = FALSE;
2264 }
2265 }
2266 }
2267
2268 if (okay)
2269 {
2270 uentry_setAliasKind (ue, ak);
2271 }
2272 }
2273 else if (qual_isNull (qel))
2274 {
2275 if (uentry_isConstant (ue))
2276 {
2277 sRef_setNullState
2278 (ue->sref,
2279 ctype_isAbstract (ue->utype) ? NS_CONSTNULL : NS_DEFNULL,
2280 uentry_whereDeclared (ue));
2281 }
2282 else
2283 {
2284 uentry_setNullState (ue, NS_POSNULL);
2285 }
2286 }
2287 else if (qual_isRelNull (qel))
2288 {
2289 uentry_setNullState (ue, NS_RELNULL);
2290 }
2291 else if (qual_isNotNull (qel))
2292 {
2293 uentry_setNullState (ue, NS_MNOTNULL);
2294 }
2295 else if (qual_isAbstract (qel)
2296 || qual_isConcrete (qel))
2297 {
2298 if (!uentry_isDatatype (ue))
2299 {
28bf4b0b 2300 voptgenerror
2301 (FLG_ANNOTATIONERROR,
616915dd 2302 message ("Qualifier %s used with non-datatype",
28bf4b0b 2303 qual_unparse (qel)),
2304 uentry_whereLast (ue));
616915dd 2305 }
2306 else
2307 {
2308 ue->info->datatype->abs = ynm_fromBool (qual_isAbstract (qel));
2309 }
2310 }
2311 else if (qual_isMutable (qel))
2312 {
2313 if (!uentry_isDatatype (ue))
2314 {
28bf4b0b 2315 voptgenerror
2316 (FLG_ANNOTATIONERROR,
2317 message ("Qualifier %s used with non-datatype", qual_unparse (qel)),
2318 uentry_whereLast (ue));
616915dd 2319 }
2320 else
2321 {
2322 if (!ynm_isOn (ue->info->datatype->mut))
2323 {
2324 uentry_checkMutableType (ue);
2325 }
2326
2327 ue->info->datatype->mut = YES;
2328 }
2329 }
2330 else if (qual_isImmutable (qel))
2331 {
2332 if (!uentry_isDatatype (ue))
2333 {
28bf4b0b 2334 voptgenerror (FLG_ANNOTATIONERROR,
2335 message ("Qualifier %s used with non-datatype",
2336 qual_unparse (qel)),
2337 uentry_whereLast (ue));
616915dd 2338 }
2339 else
2340 {
2341 ue->info->datatype->mut = NO;
2342 }
2343 }
2344 else if (qual_isNullPred (qel))
2345 {
efd360a3 2346 uentry_convertVarFunction (ue);
2347
616915dd 2348 if (uentry_isFunction (ue))
2349 {
2350 ctype typ = uentry_getType (ue);
28bf4b0b 2351 ctype rtype = ctype_getReturnType (uentry_getType (ue));
616915dd 2352
2353 if (ctype_isRealBool (rtype))
2354 {
2355 uentryList pl = ctype_argsFunction (typ);
2356
2357 if (uentryList_size (pl) == 1)
2358 {
2359 ue->info->fcn->nullPred = qel;
2360 }
2361 else
2362 {
28bf4b0b 2363 voptgenerror (FLG_ANNOTATIONERROR,
2364 message ("Qualifier %s used with function having %d "
2365 "arguments (should have 1)",
2366 qual_unparse (qel),
2367 uentryList_size (pl)),
2368 uentry_whereLast (ue));
616915dd 2369 }
2370 }
2371 else
2372 {
28bf4b0b 2373 voptgenerror (FLG_ANNOTATIONERROR,
2374 message ("Qualifier %s used with function returning %s "
2375 "(should return bool)",
2376 qual_unparse (qel),
2377 ctype_unparse (rtype)),
2378 uentry_whereLast (ue));
616915dd 2379 }
2380 }
2381 else
2382 {
28bf4b0b 2383 voptgenerror (FLG_ANNOTATIONERROR,
2384 message ("Qualifier %s used with non-function",
2385 qual_unparse (qel)),
2386 uentry_whereLast (ue));
616915dd 2387 }
2388 }
2389 else if (qual_isExitQual (qel))
2390 {
2391 exitkind exk = exitkind_fromQual (qel);
2392
2393 if (uentry_isFunction (ue))
2394 {
2395 if (exitkind_isKnown (ue->info->fcn->exitCode))
2396 {
28bf4b0b 2397 voptgenerror (FLG_ANNOTATIONERROR,
2398 message ("Multiple exit qualifiers used on function %q: %s, %s",
2399 uentry_getName (ue),
2400 exitkind_unparse (ue->info->fcn->exitCode),
2401 exitkind_unparse (exk)),
2402 uentry_whereLast (ue));
616915dd 2403 }
2404
2405 ue->info->fcn->exitCode = exk;
2406 }
2407 else
2408 {
2409 if (uentry_isVariable (ue) && ctype_isFunction (uentry_getType (ue)))
2410 {
2411 uentry_makeVarFunction (ue);
2412 ue->info->fcn->exitCode = exk;
2413 }
2414 else
2415 {
28bf4b0b 2416 voptgenerror (FLG_ANNOTATIONERROR,
2417 message ("Exit qualifier %s used with non-function (type %s)",
2418 qual_unparse (qel),
2419 ctype_unparse (uentry_getType (ue))),
2420 uentry_whereLast (ue));
2421 }
2422 }
2423 }
2424 else if (qual_isMetaState (qel))
2425 {
2426 annotationInfo ainfo = qual_getAnnotationInfo (qel);
2427
2428 if (annotationInfo_matchesContext (ainfo, ue))
2429 {
2430 DPRINTF (("Reflecting %s on %s",
2431 annotationInfo_unparse (ainfo),
2432 uentry_unparseFull (ue)));
2433
2434 sRef_reflectAnnotation (ue->sref, ainfo, g_currentloc);
2435 DPRINTF (("==> %s", sRef_unparseFull (ue->sref)));
2436 DPRINTF (("==> %s", uentry_unparseFull (ue)));
2437 }
2438 else
2439 {
2440 if (optgenerror
2441 (FLG_ANNOTATIONERROR,
0bf5022d 2442 message ("Attribute annotation %s used in inconsistent context: %q",
28bf4b0b 2443 qual_unparse (qel),
2444 uentry_unparse (ue)),
2445 uentry_whereLast (ue)))
2446 {
2447 /*@i! annotationInfo_showContextError (ainfo, ue); */
616915dd 2448 }
2449 }
2450 }
2451 else
2452 {
2453 if (qual_isCQual (qel))
2454 {
2455 ; /* okay */
2456 }
2457 else
2458 {
28bf4b0b 2459 llbug (message ("Unhandled qualifier: %s", qual_unparse (qel)));
616915dd 2460 }
2461 }
2462}
2463
2464void
2465uentry_reflectQualifiers (uentry ue, qualList q)
2466{
2467 llassert (uentry_isValid (ue));
2468
ccf0a4a8 2469 DPRINTF (("Reflect qualifiers: %s / %s",
2470 uentry_unparseFull (ue), qualList_unparse (q)));
2471
616915dd 2472 qualList_elements (q, qel)
2473 {
2474 if (qual_isStatic (qel))
2475 {
2476 uentry_setStatic (ue);
2477 }
2478 else if (qual_isUnused (qel))
2479 {
2480 uentry_setUsed (ue, fileloc_undefined);
2481 }
2482 else if (qual_isExternal (qel))
2483 {
2484 fileloc_free (ue->whereDefined);
2485 ue->whereDefined = fileloc_createExternal ();
2486 }
2487 else if (qual_isSef (qel))
2488 {
2489 if (uentry_isVariable (ue))
2490 {
2491 vkind vk = ue->info->var->kind;
2492
2493 llassert (vk != VKREFPARAM);
2494
2495 if (vk == VKYIELDPARAM)
2496 {
28bf4b0b 2497 voptgenerror
2498 (FLG_ANNOTATIONERROR,
616915dd 2499 message ("Qualifier sef cannot be used with %s: %q",
2500 cstring_makeLiteralTemp (vk == VKYIELDPARAM ? "yield" : "returned"),
28bf4b0b 2501 uentry_unparse (ue)),
2502 uentry_whereLast (ue));
616915dd 2503 }
2504 else if (vk == VKRETPARAM)
2505 {
2506 ue->info->var->kind = VKSEFRETPARAM;
2507 }
2508 else
2509 {
2510 ue->info->var->kind = VKSEFPARAM;
2511 }
2512 }
2513 else
2514 {
28bf4b0b 2515 voptgenerror
2516 (FLG_ANNOTATIONERROR,
616915dd 2517 message ("Qualifier sef is meaningful only on parameters: %q",
28bf4b0b 2518 uentry_unparse (ue)),
2519 uentry_whereLast (ue));
616915dd 2520 }
2521 }
2522 else if (qual_isExtern (qel))
2523 {
2524 ue->storageclass = SCEXTERN;
2525 }
2526 else if (qual_isGlobalQual (qel)) /* undef, killed */
2527 {
28bf4b0b 2528 DPRINTF (("Reflecting qual: %s / %s",
2529 qual_unparse (qel), uentry_unparse (ue)));
2530
616915dd 2531 if (uentry_isVariable (ue))
2532 {
2533 sstate oldstate = ue->info->var->defstate;
2534 sstate defstate = sstate_fromQual (qel);
2535
2536
2537 if ((oldstate == SS_UNDEFGLOB && defstate == SS_KILLED)
2538 || (oldstate == SS_KILLED && defstate == SS_UNDEFGLOB))
2539 {
2540 defstate = SS_UNDEFKILLED;
2541 }
2542 else
2543 {
2544 ; /* any errors? */
2545 }
2546
2547 sRef_setDefState (ue->sref, defstate, fileloc_undefined);
2548 ue->info->var->defstate = defstate;
2549 }
2550 else
2551 {
28bf4b0b 2552 voptgenerror
2553 (FLG_ANNOTATIONERROR,
616915dd 2554 message ("Qualifier %s used on non-variable: %q",
28bf4b0b 2555 qual_unparse (qel), uentry_unparse (ue)),
2556 uentry_whereLast (ue));
616915dd 2557 }
28bf4b0b 2558
2559 DPRINTF (("After: %s", uentry_unparseFull (ue)));
616915dd 2560 }
2561 /* start modifications */
616915dd 2562 else if( qual_isBufQualifier(qel) ) {
2563 ctype ct = ctype_realType(uentry_getType(ue));
616915dd 2564 if( ctype_isArray(ct) || ctype_isPointer(ct) ) {
2565
2566 if( uentry_hasBufStateInfo(ue) ) {
616915dd 2567 if( qual_isNullTerminated(qel) ) { /* handle Nullterm */
2568
2569 if (uentry_isAnyParam(ue) || uentry_isReturned (ue)) {
2570 /* If formal func param */
2571 uentry_setNullTerminatedState(ue);
2572 uentry_setLen (ue, 1);
2573 uentry_setSize (ue, 1);
2574
2575 sRef_setNullTerminatedState(uentry_getSref(ue));
2576 sRef_setLen (uentry_getSref(ue), 1);
2577 sRef_setSize (uentry_getSref(ue), 1);
2578 } else {
2579 uentry_setPossiblyNullTerminatedState(ue);
2580
2581 sRef_setPossiblyNullTerminatedState(uentry_getSref(ue));
2582 }
2583
2584 }
2585 /* put other BufState Qualifiers here */
2586 } else {
2587 cstring s = uentry_getName(ue);
2588 llfatalbug(message("INTERNAL Error: we have a NULL BufState \
2589 struct for identifier %s\n", s) );
2590 }
2591 } else if (ctype_isFunction (ct)) { /* We have to handle function */
2592
2593 sRef retSref = uentry_getSref (ue);
2594 ctype retType = sRef_getType (retSref);
2595
2596 if (ctype_isPointer (retType) || ctype_isArray (retType)) {
2597 sRef_setNullTerminatedState (retSref);
2598
2599 } else {
2600
2601 llerror
2602 (FLG_SYNTAX,
2603 message ("Qualifier %s used on non-pointer on \
2604 function return: %q", qual_unparse (qel),
2605 uentry_unparse (ue)));
2606 }
2607 }
2608
2609 else {
2610 llerror
2611 (FLG_SYNTAX,
2612 message ("Qualifier %s used on non-pointer: %q",
2613 qual_unparse (qel), uentry_unparse (ue)));
2614 }
28bf4b0b 2615 DPRINTF (("After: %s", uentry_unparseFull (ue)));
616915dd 2616 }/* end else if */
2617 else if (qual_isAllocQual (qel)) /* out, partial, reldef, special, etc. */
2618 {
2619 ctype realType = ctype_realType (ue->utype);
2620 sstate defstate = sstate_fromQual (qel);
2621
2622 if (ctype_isFunction (realType))
2623 {
28bf4b0b 2624 realType = ctype_realType (ctype_getReturnType (realType));
616915dd 2625 }
2626
2627 if (qual_isRelDef (qel))
2628 {
2629 ; /* okay anywhere */
2630 }
2631 else
2632 {
2633 if (!ctype_isAP (realType)
2634 && !ctype_isSU (realType)
2635 && !ctype_isUnknown (realType)
2636 && !ctype_isAbstract (ue->utype))
2637 {
28bf4b0b 2638 voptgenerror
2639 (FLG_ANNOTATIONERROR,
616915dd 2640 message ("Qualifier %s used on non-pointer or struct: %q",
28bf4b0b 2641 qual_unparse (qel), uentry_unparse (ue)),
2642 uentry_whereLast (ue));
616915dd 2643 }
2644 }
2645
2646 uentry_setDefState (ue, defstate);
2647
2648 if (sRef_isStateSpecial (ue->sref)
2649 && alkind_isImplicit (sRef_getAliasKind (ue->sref)))
2650 {
2651 sRef_setAliasKind (ue->sref, AK_ERROR, fileloc_undefined);
2652 }
2653 }
2654 else if (qual_isYield (qel))
2655 {
2656 if (uentry_isVariable (ue))
2657 {
2658 ue->info->var->kind = VKYIELDPARAM;
2659 }
2660 else
2661 {
28bf4b0b 2662 voptgenerror
2663 (FLG_ANNOTATIONERROR,
616915dd 2664 message ("Qualifier %s used on non-iterator parameter: %q",
28bf4b0b 2665 qual_unparse (qel), uentry_unparse (ue)),
2666 uentry_whereLast (ue));
616915dd 2667 }
2668 }
2669 else if (qual_isExQual (qel))
2670 {
2671 exkind ek = exkind_fromQual (qel);
2672 ctype ut = uentry_getType (ue);
2673
28bf4b0b 2674 DPRINTF (("Reflect ex qual: %s / %s",
2675 uentry_unparse (ue), exkind_unparse (ek)));
2676
616915dd 2677 if (ctype_isFunction (ut))
2678 {
28bf4b0b 2679 ut = ctype_getReturnType (ut);
616915dd 2680 }
2681
2682 if (!(ctype_isVisiblySharable (ut))
2683 && !(ctype_isArray (ut)) /* can apply to arrays also! */
2684 && !(ctype_isStruct (ctype_realType (ut)))) /* applies to structure fields! */
2685 {
2686 if (!qual_isImplied (qel))
2687 {
28bf4b0b 2688 if (ctype_isImmutableAbstract (ut)) {
2689 voptgenerror
2690 (FLG_REDUNDANTSHAREQUAL,
2691 message ("Qualifier %s used on unsharable storage type %t: %q",
2692 exkind_unparse (ek), ut, uentry_getName (ue)),
2693 uentry_whereLast (ue));
2694 } else {
2695 voptgenerror
2696 (FLG_MISPLACEDSHAREQUAL,
2697 message ("Qualifier %s used on unsharable storage type %t: %q",
2698 exkind_unparse (ek), ut, uentry_getName (ue)),
2699 uentry_whereLast (ue));
2700 }
616915dd 2701 }
2702 }
2703 else
2704 {
2705 alkind ak = sRef_getAliasKind (ue->sref);
2706
2707 sRef_setExKind (ue->sref, ek, uentry_whereDeclared (ue));
28bf4b0b 2708 DPRINTF (("Set exkind: %s", sRef_unparseFull (ue->sref)));
616915dd 2709
2710 if (alkind_isUnknown (ak) || alkind_isImplicit (ak) || alkind_isStatic (ak))
2711 {
2712 if (!alkind_isTemp (ak))
2713 {
28bf4b0b 2714 DPRINTF (("imp dep: %s", uentry_unparseFull (ue)));
616915dd 2715 uentry_setAliasKind (ue, AK_IMPDEPENDENT);
2716 }
2717 }
2718 else if (alkind_isDependent (ak) || alkind_isTemp (ak)
2719 || alkind_isOwned (ak))
2720 {
2721 ; /* okay */
2722 }
2723 else
2724 {
2725 llerror
2726 (FLG_SYNTAX,
2727 message ("Exposure qualifier %s used on %s storage (should "
2728 "be dependent): %q",
2729 qual_unparse (qel),
2730 alkind_unparse (ak),
2731 uentry_unparse (ue)));
2732 }
2733 }
2734 }
2735 else if (qual_isGlobCheck (qel))
2736 {
2737 if (uentry_isVariable (ue))
2738 {
2739 chkind ch = chkind_fromQual (qel);
2740
2741 if (ue->info->var->checked != CH_UNKNOWN)
2742 {
2743 if (ch == ue->info->var->checked)
2744 {
2745 llerror (FLG_SYNTAX,
2746 message ("Redundant %s qualifier on %q",
2747 qual_unparse (qel),
2748 uentry_getName (ue)));
2749 }
2750 else
2751 {
2752 llerror (FLG_SYNTAX,
2753 message
2754 ("Contradictory %s and %s qualifiers on %q",
2755 qual_unparse (qel),
2756 checkedName (ue->info->var->checked),
2757 uentry_getName (ue)));
2758 }
2759 }
2760
2761 ue->info->var->checked = ch;
2762 }
2763 else
2764 {
2765 llerror
2766 (FLG_SYNTAX,
2767 message ("Qualifier %s used with non-variable",
2768 qual_unparse (qel)));
2769 }
2770 }
2771 else if (qual_isReturned (qel))
2772 {
2773 if (uentry_isVariable (ue))
2774 {
2775 ue->info->var->kind = VKRETPARAM;
2776 }
2777 else
2778 {
2779 llerror (FLG_SYNTAX, message ("Qualifier %s used with non-variable",
2780 qual_unparse (qel)));
2781 }
2782 }
2783 else
2784 {
2785 uentry_reflectOtherQualifier (ue, qel);
2786 }
2787
2788 sRef_storeState (ue->sref);
2789 } end_qualList_elements;
2790
2791 qualList_clear (q);
ccf0a4a8 2792
2793 DPRINTF (("Done: %s", sRef_unparseFull (ue->sref)));
616915dd 2794}
2795
2796bool
2797uentry_isOnly (uentry ue)
2798{
2799 return (!uentry_isUndefined (ue)
2800 && uentry_isVariable (ue)
2801 && alkind_isOnly (sRef_getOrigAliasKind (ue->sref)));
2802}
2803
2804static void
2805uentry_setAliasKind (/*@notnull@*/ uentry ue, alkind ak)
2806{
2807 sRef_setAliasKind (ue->sref, ak, uentry_whereDeclared (ue));
2808 sRef_setOrigAliasKind (ue->sref, ak);
2809}
2810
2811static void
2812uentry_setNullState (/*@notnull@*/ uentry ue, nstate ns)
2813{
2814 if (uentry_isVariable (ue))
2815 {
2816 ue->info->var->nullstate = ns;
2817 }
2818
2819 sRef_setNullState (ue->sref, ns, uentry_whereDeclared (ue));
2820}
2821
2822bool
2823uentry_isUnique (uentry ue)
2824{
2825 return (!uentry_isUndefined (ue)
2826 && uentry_isVariable (ue)
2827 && alkind_isUnique (sRef_getOrigAliasKind (ue->sref)));
2828}
2829
2830bool
2831uentry_isFileStatic (uentry ue)
2832{
2833 return (uentry_isStatic (ue)
2834 && (!uentry_isVariable (ue)
2835 || sRef_isFileStatic (uentry_getSref (ue))));
2836}
2837
2838bool
2839uentry_isExported (uentry ue)
2840{
2841 if (uentry_isValid (ue))
2842 {
2843 if (uentry_isVariable (ue))
2844 {
2845 return (sRef_isRealGlobal (uentry_getSref (ue)));
2846 }
2847 else
2848 {
2849 return !uentry_isStatic (ue);
2850 }
2851 }
2852
2853 return FALSE;
2854}
2855
2856bool
2857uentry_isNonLocal (uentry ue)
2858{
2859 return (uentry_isValid (ue) && uentry_isVariable (ue)
28bf4b0b 2860 && (sRef_isFileOrGlobalScope (ue->sref) || uentry_isStatic (ue)));
2861}
2862
2863bool
2864uentry_isGlobalVariable (uentry ue)
2865{
2866 return (uentry_isValid (ue) && uentry_isVariable (ue)
2867 && sRef_isFileOrGlobalScope (ue->sref));
616915dd 2868}
2869
2870bool
28bf4b0b 2871uentry_isVisibleExternally (uentry ue)
616915dd 2872{
28bf4b0b 2873 return (uentry_isValid (ue)
2874 && ((uentry_isVariable (ue) && sRef_isRealGlobal (ue->sref))
2875 || (!uentry_isStatic (ue)
2876 && (uentry_isFunction (ue)
2877 || uentry_isIter (ue)
2878 || uentry_isEndIter (ue)
2879 || uentry_isConstant (ue)
2880 || uentry_isDatatype (ue)
2881 || uentry_isAnyTag (ue)))));
616915dd 2882}
2883
2884bool
2885uentry_isPrintfLike (uentry ue)
2886{
2887 return (uentry_isFunction (ue)
2888 && (ue->info->fcn->specialCode == SPC_PRINTFLIKE));
2889}
2890
2891bool
2892uentry_isScanfLike (uentry ue)
2893{
2894 return (uentry_isFunction (ue)
2895 && (ue->info->fcn->specialCode == SPC_SCANFLIKE));
2896}
2897
2898bool
2899uentry_isMessageLike (uentry ue)
2900{
2901 return (uentry_isFunction (ue)
2902 && (ue->info->fcn->specialCode == SPC_MESSAGELIKE));
2903}
2904
2905static void checkSpecialFunction (/*@notnull@*/ uentry ue)
2906{
2907 uentryList args = uentry_getParams (ue);
2908
2909 if (!uentryList_isMissingParams (args))
2910 {
2911 uentry last = uentry_undefined;
2912
2913 uentryList_elements (args, current)
2914 {
2915 if (uentry_isElipsisMarker (current))
2916 {
2917 if (uentry_isUndefined (last))
2918 {
2919 voptgenerror
2920 (FLG_SYNTAX,
2921 message ("Function %q is marked %s, but has no format "
2922 "string argument before elipsis",
2923 uentry_getName (ue),
2924 specCode_unparse (ue->info->fcn->specialCode)),
2925 uentry_whereLast (ue));
2926 ue->info->fcn->specialCode = SPC_NONE;
2927 }
2928 else
2929 {
2930 ctype rt = ctype_realType (uentry_getType (last));
2931
2932 if (!ctype_match (rt, ctype_string))
2933 {
2934 bool okay = FALSE;
2935
2936 /* wchar_t * is okay too */
2937 if (ctype_isAP (rt))
2938 {
2939 ctype base = ctype_baseArrayPtr (rt);
2940
2941 if (ctype_isArbitraryIntegral (base))
2942 {
2943 okay = TRUE;
2944 }
2945 }
2946
2947 if (!okay)
2948 {
2949 voptgenerror
2950 (FLG_SYNTAX,
2951 message ("Function %q is marked %s, but the argument "
2952 "before the elipsis has type %s (should be char *)",
2953 uentry_getName (ue),
2954 specCode_unparse (ue->info->fcn->specialCode),
2955 ctype_unparse (uentry_getType (last))),
2956 uentry_whereLast (ue));
2957
2958 ue->info->fcn->specialCode = SPC_NONE;
2959 }
2960 }
2961 }
2962 return;
2963 }
2964 last = current;
2965 } end_uentryList_elements ;
2966
2967 voptgenerror
2968 (FLG_SYNTAX,
2969 message ("Function %q is marked %s, but has no elipsis parameter",
2970 uentry_getName (ue),
2971 specCode_unparse (ue->info->fcn->specialCode)),
2972 uentry_whereLast (ue));
2973
2974 ue->info->fcn->specialCode = SPC_NONE;
2975 }
2976}
2977
2978void
2979uentry_setPrintfLike (uentry ue)
2980{
efd360a3 2981 uentry_convertVarFunction (ue);
616915dd 2982 llassertfatal (uentry_isFunction (ue));
2983 ue->info->fcn->specialCode = SPC_PRINTFLIKE;
2984 checkSpecialFunction (ue);
2985}
2986
2987void
2988uentry_setScanfLike (uentry ue)
2989{
efd360a3 2990 uentry_convertVarFunction (ue);
616915dd 2991 llassertfatal (uentry_isFunction (ue));
2992 ue->info->fcn->specialCode = SPC_SCANFLIKE;
2993 checkSpecialFunction (ue);
2994}
2995
2996void
2997uentry_setMessageLike (uentry ue)
2998{
efd360a3 2999 uentry_convertVarFunction (ue);
616915dd 3000 llassertfatal (uentry_isFunction (ue));
3001 ue->info->fcn->specialCode = SPC_MESSAGELIKE;
3002 checkSpecialFunction (ue);
3003}
3004
3005bool
3006uentry_isSpecialFunction (uentry ue)
3007{
3008 return (uentry_isFunction (ue)
3009 && (ue->info->fcn->specialCode != SPC_NONE));
3010}
3011
3012/*@notnull@*/ uentry uentry_makeParam (idDecl t, int i)
3013{
3014 ctype ct = idDecl_getCtype (t);
3015 ctype base = ct;
6970c11b 3016 fileloc loc = setLocation ();
3017 sRef pref = sRef_makeParam (i, ct, stateInfo_makeLoc (loc));
3018 uentry ue = uentry_makeVariableSrefParam (idDecl_observeId (t), ct, loc, pref);
616915dd 3019
6970c11b 3020 DPRINTF (("Make param: %s", uentry_unparseFull (ue)));
616915dd 3021 uentry_reflectQualifiers (ue, idDecl_getQuals (t));
3022 uentry_implicitParamAnnots (ue);
3023
3024 /* Parameter type [][] or [x][] is invalid */
3025
3026 while (ctype_isFixedArray (base)) {
3027 base = ctype_baseArrayPtr (base);
3028 }
3029
3030 if (ctype_isIncompleteArray (base)) {
3031 base = ctype_baseArrayPtr (base);
3032
3033 if (ctype_isArray (base)) {
3034 if (!uentry_hasName (ue)) {
3035 (void) optgenerror (FLG_INCOMPLETETYPE,
3036 message ("Unnamed function parameter %d is incomplete type (inner array must have bounds): %s",
3037 i + 1,
3038 ctype_unparse (ct)),
3039 uentry_whereLast (ue));
3040 } else {
3041 (void) optgenerror (FLG_INCOMPLETETYPE,
3042 message ("Function parameter %q is incomplete type (inner array must have bounds): %s",
3043 uentry_getName (ue),
3044 ctype_unparse (ct)),
3045 uentry_whereLast (ue));
3046 }
3047 }
3048 }
3049
28bf4b0b 3050 DPRINTF (("Param: %s", uentry_unparseFull (ue)));
616915dd 3051 return ue;
3052}
3053
3054/*@only@*/ /*@notnull@*/ uentry uentry_makeIdVariable (idDecl t)
3055{
3056 ctype ct = idDecl_getCtype (t);
3057
3058 if (ctype_isFunction (ct))
3059 {
3060 return (uentry_makeIdFunction (t));
3061 }
3062 else
3063 {
3064 fileloc loc = setLocation ();
3065 uentry ue = uentry_makeVariable (idDecl_observeId (t), ct, loc, FALSE);
3066
3067 uentry_reflectQualifiers (ue, idDecl_getQuals (t));
3068
3069 if (!uentry_isExtern (ue))
3070 {
3071 uentry_setDefined (ue, loc);
3072 }
3073
3074 return ue;
3075 }
3076}
3077
3078# ifndef NOLCL
6970c11b 3079/*@notnull@*/ uentry uentry_makeVariableParam (cstring n, ctype t, fileloc loc)
616915dd 3080{
6970c11b 3081 return (uentry_makeVariableParamAux (n, t, sRef_makeType (t), fileloc_copy (loc), SS_DEFINED));
616915dd 3082}
3083# endif
3084
3085/*
3086** constants
3087*/
3088
3089/*@only@*/ /*@notnull@*/
3090uentry uentry_makeConstantAux (cstring n, ctype t,
3091 /*@keep@*/ fileloc f, bool priv,
3092 /*@only@*/ multiVal m)
3093{
3094 uentry e = uentry_alloc ();
3095
3096 e->ukind = KCONST;
3097 e->uname = cstring_copy (n);
3098 e->utype = t;
3099 e->storageclass = SCNONE;
3100
28bf4b0b 3101 e->warn = warnClause_undefined; /*@i32 warnings for constants? */
3102
616915dd 3103 e->sref = sRef_makeConst (t);
3104
3105 e->lset = FALSE;
3106 e->used = FALSE;
3107
3108 e->uses = filelocList_new ();
3109 e->isPrivate = priv;
3110 e->hasNameError = FALSE;
3111
3112 e->info = (uinfo) dmalloc (sizeof (*e->info));
3113 e->info->uconst = (ucinfo) dmalloc (sizeof (*e->info->uconst));
616915dd 3114 e->info->uconst->access = typeIdSet_undefined;
3115
3116 uentry_setSpecDef (e, f);
3117
3118 if (multiVal_isInt (m) && (multiVal_forceInt (m) == 0))
3119 {
3120 sRef_setDefNull (e->sref, uentry_whereDeclared (e));
3121 }
3122
b9904f57 3123 uentry_setConstantValue (e, m);
3124
616915dd 3125 return (e);
3126}
3127
3128/*@notnull@*/ uentry uentry_makeConstant (cstring n, ctype t, fileloc f)
3129{
3130 return (uentry_makeConstantAux (n, t, f, FALSE, multiVal_unknown ()));
3131}
3132
3133/*@notnull@*/ uentry uentry_makeIdConstant (idDecl t)
3134{
3135 uentry ue = uentry_makeConstant (idDecl_observeId (t),
3136 idDecl_getCtype (t),
3137 fileloc_undefined);
3138
3139 llassert (fileloc_isUndefined (ue->whereDeclared));
3140 ue->whereDeclared = setLocation ();
616915dd 3141 uentry_reflectQualifiers (ue, idDecl_getQuals (t));
3142
b9904f57 3143 DPRINTF (("Constant: %s", uentry_unparseFull (ue)));
616915dd 3144 return ue;
3145}
3146
3147/*
3148** variables
3149*/
3150
3151void uentry_setDefState (uentry ue, sstate defstate)
3152{
3153 if (uentry_isValid (ue))
3154 {
3155 sRef_setDefState (ue->sref, defstate, fileloc_undefined);
3156
3157 if (uentry_isVariable (ue))
3158 {
3159 ue->info->var->defstate = defstate; /* evs 2000-05-17: fixed bug, was SS_DEFINED! */
3160 }
3161 }
3162}
3163
3164bool uentry_isCheckedUnknown (uentry ue)
3165{
3166 return (uentry_isVar (ue)
3167 && (ue->info->var->checked == CH_UNKNOWN));
3168}
3169
3170bool uentry_isCheckMod (uentry ue)
3171{
3172 return (uentry_isVar (ue)
3173 && (ue->info->var->checked == CH_CHECKMOD));
3174}
3175
3176bool uentry_isUnchecked (uentry ue)
3177{
3178 return (uentry_isVar (ue)
3179 && (ue->info->var->checked == CH_UNCHECKED));
3180}
3181
3182bool uentry_isChecked (uentry ue)
3183{
3184 return (uentry_isVar (ue)
3185 && (ue->info->var->checked == CH_CHECKED));
3186}
3187
3188bool uentry_isCheckedModify (uentry ue)
3189{
3190 return (uentry_isVar (ue)
3191 && (ue->info->var->checked == CH_CHECKED
3192 || ue->info->var->checked == CH_CHECKMOD
3193 || ue->info->var->checked == CH_CHECKEDSTRICT));
3194}
3195
3196bool uentry_isCheckedStrict (uentry ue)
3197{
3198 return (uentry_isVar (ue)
3199 && (ue->info->var->checked == CH_CHECKEDSTRICT));
3200}
3201
3202void uentry_setUnchecked (uentry ue)
3203{
3204 llassert (uentry_isVar (ue));
3205
3206 ue->info->var->checked = CH_UNCHECKED;
3207}
3208
3209void uentry_setChecked (uentry ue)
3210{
3211 llassert (uentry_isVar (ue));
3212
3213 ue->info->var->checked = CH_CHECKED;
3214}
3215
3216void uentry_setCheckMod (uentry ue)
3217{
3218 llassert (uentry_isVar (ue));
3219
3220 ue->info->var->checked = CH_CHECKMOD;
3221}
3222
3223void uentry_setCheckedStrict (uentry ue)
3224{
3225 llassert (uentry_isVar (ue));
3226
3227 ue->info->var->checked = CH_CHECKEDSTRICT;
3228}
3229
3230static /*@only@*/ /*@notnull@*/
3231 uentry uentry_makeVariableAux (cstring n, ctype t,
3232 fileloc f,
3233 /*@exposed@*/ sRef s,
3234 bool priv, vkind kind)
3235{
3236 uentry e = uentry_alloc ();
3237 ctype rt = t;
3238
3239 DPRINTF (("Make variable: %s %s %s", n, ctype_unparse (t), sRef_unparse (s)));
3240
3241 e->ukind = KVAR;
3242 e->uname = cstring_copy (n);
3243 e->utype = t;
3244
3245 e->storageclass = SCNONE;
3246
28bf4b0b 3247 e->warn = warnClause_undefined; /*@i32 warnings for variable @*/
3248
616915dd 3249 e->sref = s;
3250
3251 e->used = FALSE;
3252 e->lset = FALSE;
3253
3254 e->uses = filelocList_new ();
3255 e->isPrivate = priv;
3256 e->hasNameError = FALSE;
3257
3258 e->info = (uinfo) dmalloc (sizeof (*e->info));
3259 e->info->var = (uvinfo) dmalloc (sizeof (*e->info->var));
3260 e->info->var->kind = kind;
3261
3262 e->info->var->checked = CH_UNKNOWN;
3263
28bf4b0b 3264 DPRINTF (("Here we are: %s", sRef_unparseFull (e->sref)));
616915dd 3265 uentry_setSpecDef (e, f);
28bf4b0b 3266 DPRINTF (("Here we are: %s", sRef_unparseFull (e->sref)));
616915dd 3267
3268 if (ctype_isFunction (rt))
3269 {
28bf4b0b 3270 rt = ctype_getReturnType (rt);
616915dd 3271 }
3272
3273 if (ctype_isUA (rt))
3274 {
28bf4b0b 3275 DPRINTF (("Here we are: %s", sRef_unparseFull (e->sref)));
616915dd 3276 sRef_setStateFromType (e->sref, rt);
3277 }
3278
28bf4b0b 3279 DPRINTF (("Here we are: %s", sRef_unparseFull (e->sref)));
616915dd 3280 e->info->var->defstate = sRef_getDefState (e->sref);
3281 e->info->var->nullstate = sRef_getNullState (e->sref);
3282
6970c11b 3283 /* start modifications */
3284 /* This function sets the uentry for a pointer or array variable declaration,
3285 it allocates memory and sets the fields. We check if the type of the variable
3286 is a pointer or array and allocate a `bbufinfo' struct accordingly */
3287
616915dd 3288 if( ctype_isArray (t) || ctype_isPointer(t)) {
3289 /*@i222@*/e->info->var->bufinfo = dmalloc( sizeof(*e->info->var->bufinfo) );
3290 e->info->var->bufinfo->bufstate = BB_NOTNULLTERMINATED;
28bf4b0b 3291 /*@access sRef@*/ /*i@222*/
3292 /* It probably isn't necessary to violate the abstraction here
3293 I'll fix this later
3294 */
616915dd 3295 s->bufinfo.bufstate = BB_NOTNULLTERMINATED;
28bf4b0b 3296 /*@noaccess sRef@*/
616915dd 3297 } else {
3298 e->info->var->bufinfo = NULL;
3299 }/* end else */
3300/* end modification */
3301
3302 return (e);
3303}
3304
3305bool
3306uentry_isYield (uentry ue)
3307{
3308 return (uentry_isVariable (ue)
3309 && (ue->info->var->kind == VKYIELDPARAM
3310 || ue->info->var->kind == VKREFYIELDPARAM));
3311}
3312
3313static bool
3314uentry_isRefsField (uentry ue)
3315{
3316 return (uentry_isVariable (ue) && sRef_isRefsField (ue->sref));
3317}
3318
3319/*@only@*/ /*@notnull@*/
3320uentry uentry_makeVariable (cstring n, ctype t, fileloc f, bool isPriv)
3321{
3322 return (uentry_makeVariableAux (n, t, f, sRef_makeType (t), isPriv,
3323 fileloc_isSpec (f) ? VKSPEC : VKNORMAL));
3324}
3325
3326/*
3327** functions
3328*/
3329
3330void uentry_makeVarFunction (uentry ue)
3331{
3332 alkind ak;
3333 exkind ek;
3334 uvinfo oldInfo;
3335 fileloc loc;
3336
3337 llassert (uentry_isValid (ue));
3338 llassert (!sRef_modInFunction ());
3339
3340 ak = sRef_getOrigAliasKind (ue->sref);
3341 ek = sRef_getOrigExKind (ue->sref);
3342
b072092f 3343 llassert (uentry_isVariable (ue));
616915dd 3344 oldInfo = ue->info->var;
3345
3346 llassert (ctype_isUnknown (ue->utype) || ctype_isFunction (ue->utype));
3347
3348 /*
3349 ** expanded macro is marked used (until I write a pre-processor)
3350 */
3351
efd360a3 3352 ue->used = ue->used || (oldInfo->kind == VKEXPMACRO);
616915dd 3353
3354 ue->ukind = KFCN;
3355 ue->info->fcn = (ufinfo) dmalloc (sizeof (*ue->info->fcn));
3356 ue->info->fcn->exitCode = XK_UNKNOWN;
28bf4b0b 3357 ue->info->fcn->nullPred = qual_createUnknown ();
616915dd 3358 ue->info->fcn->specialCode = SPC_NONE;
3359 ue->info->fcn->access = typeIdSet_undefined;
3360 ue->info->fcn->hasGlobs = FALSE;
3361 ue->info->fcn->globs = globSet_undefined;
3362 ue->info->fcn->hasMods = FALSE;
3363 ue->info->fcn->mods = sRefSet_undefined;
3364 ue->info->fcn->specclauses = NULL;
3365 ue->info->fcn->defparams = uentryList_undefined;
3366
3367 /*drl*/
3814599d 3368 ue->info->fcn->preconditions = functionConstraint_undefined;
616915dd 3369 /*end */
3370
3371 /*drl 12/28/2000*/
efd360a3 3372 ue->info->fcn->postconditions = functionConstraint_undefined;
616915dd 3373 /*end */
616915dd 3374
3375 if (ctype_isFunction (ue->utype))
3376 {
28bf4b0b 3377 ue->sref = sRef_makeType (ctype_getReturnType (ue->utype));
616915dd 3378 }
3379 else
3380 {
3381 ue->sref = sRef_makeType (ctype_unknown);
3382 }
3383
3384 if (sRef_isRefCounted (ue->sref))
3385 {
3386 ak = AK_NEWREF;
3387 }
3388 else
3389 {
3390 if (alkind_isUnknown (ak))
3391 {
3392 if (exkind_isKnown (ek))
3393 {
28bf4b0b 3394 DPRINTF (("imp dep: %s", uentry_unparseFull (ue)));
616915dd 3395 ak = AK_IMPDEPENDENT;
3396 }
3397 else
3398 {
3399 if (context_getFlag (FLG_RETIMPONLY))
3400 {
3401 if (ctype_isFunction (ue->utype)
3402 && ctype_isVisiblySharable
28bf4b0b 3403 (ctype_realType (ctype_getReturnType (ue->utype))))
616915dd 3404 {
3405 if (uentryList_hasReturned (uentry_getParams (ue)))
3406 {
3407 ;
3408 }
3409 else
3410 {
28bf4b0b 3411 if (ctype_isImmutableAbstract (ctype_getReturnType (ue->utype)))
3412 {
3413 ;
3414 }
3415 else
3416 {
3417 ak = AK_IMPONLY;
3418 }
3419 }
616915dd 3420 }
3421 }
3422 }
3423 }
3424 }
3425
3426 loc = ue->whereDeclared;
3427
3428 sRef_setAliasKind (ue->sref, ak, loc);
3429 sRef_setNullState (ue->sref, oldInfo->nullstate, loc);
3430 sRef_setDefState (ue->sref, oldInfo->defstate, loc);
3431 sRef_setExKind (ue->sref, ek, loc);
3432
3433 if (oldInfo->kind == VKEXPMACRO)
3434 {
efd360a3 3435 ;
616915dd 3436 }
3437 else
3438 {
3439 fileloc_free (ue->whereDefined);
3440 ue->whereDefined = fileloc_undefined;
3441 }
3442
3443 uvinfo_free (oldInfo);
3444}
3445
b072092f 3446void uentry_makeConstantFunction (uentry ue)
3447{
3448 alkind ak;
3449 exkind ek;
3450 ucinfo oldInfo;
3451 fileloc loc;
3452
3453 llassert (uentry_isValid (ue));
3454 llassert (!sRef_modInFunction ());
3455
3456 ak = sRef_getOrigAliasKind (ue->sref);
3457 ek = sRef_getOrigExKind (ue->sref);
3458
3459 llassert (uentry_isConstant (ue));
3460 oldInfo = ue->info->uconst;
3461
3462 llassert (ctype_isUnknown (ue->utype) || ctype_isFunction (ue->utype));
3463
3464 /*
3465 ** expanded macro is marked used (until I write a pre-processor)
3466 */
3467
3468 ue->ukind = KFCN;
3469 ue->info->fcn = (ufinfo) dmalloc (sizeof (*ue->info->fcn));
3470 ue->info->fcn->exitCode = XK_UNKNOWN;
3471 ue->info->fcn->nullPred = qual_createUnknown ();
3472 ue->info->fcn->specialCode = SPC_NONE;
3473 ue->info->fcn->access = typeIdSet_undefined;
3474 ue->info->fcn->hasGlobs = FALSE;
3475 ue->info->fcn->globs = globSet_undefined;
3476 ue->info->fcn->hasMods = FALSE;
3477 ue->info->fcn->mods = sRefSet_undefined;
3478 ue->info->fcn->specclauses = NULL;
3479 ue->info->fcn->defparams = uentryList_undefined;
3480
3481 /*drl*/
3482 ue->info->fcn->preconditions = functionConstraint_undefined;
3483 /*end */
3484
3485 /*drl 12/28/2000*/
3486 ue->info->fcn->postconditions = functionConstraint_undefined;
3487 /*end */
3488
3489
3490 if (ctype_isFunction (ue->utype))
3491 {
3492 ue->sref = sRef_makeType (ctype_getReturnType (ue->utype));
3493 }
3494 else
3495 {
3496 ue->sref = sRef_makeType (ctype_unknown);
3497 }
3498
3499 if (sRef_isRefCounted (ue->sref))
3500 {
3501 ak = AK_NEWREF;
3502 }
3503 else
3504 {
3505 if (alkind_isUnknown (ak))
3506 {
3507 if (exkind_isKnown (ek))
3508 {
3509 DPRINTF (("imp dep: %s", uentry_unparseFull (ue)));
3510 ak = AK_IMPDEPENDENT;
3511 }
3512 else
3513 {
3514 if (context_getFlag (FLG_RETIMPONLY))
3515 {
3516 if (ctype_isFunction (ue->utype)
3517 && ctype_isVisiblySharable
3518 (ctype_realType (ctype_getReturnType (ue->utype))))
3519 {
3520 if (uentryList_hasReturned (uentry_getParams (ue)))
3521 {
3522 ;
3523 }
3524 else
3525 {
3526 if (ctype_isImmutableAbstract (ctype_getReturnType (ue->utype)))
3527 {
3528 ;
3529 }
3530 else
3531 {
3532 ak = AK_IMPONLY;
3533 }
3534 }
3535 }
3536 }
3537 }
3538 }
3539 }
3540
3541 loc = ue->whereDeclared;
3542
3543 sRef_setAliasKind (ue->sref, ak, loc);
3544 sRef_setExKind (ue->sref, ek, loc);
3545
3546 fileloc_free (ue->whereDefined);
3547 ue->whereDefined = fileloc_undefined;
3548 ucinfo_free (oldInfo);
3549}
3550
616915dd 3551void
3552uentry_setGlobals (uentry ue, /*@owned@*/ globSet globs)
3553{
3554 llassert (uentry_isValid (ue));
3555
3556 if (uentry_isIter (ue))
3557 {
3558 llassert (globSet_isUndefined (ue->info->iter->globs));
3559 ue->info->iter->globs = globs;
3560 }
3561 else
3562 {
efd360a3 3563 uentry_convertVarFunction (ue);
616915dd 3564
3565 llassert (uentry_isFunction (ue));
3566 llassert (!ue->info->fcn->hasGlobs
3567 && globSet_isUndefined (ue->info->fcn->globs));
3568
3569 ue->info->fcn->hasGlobs = TRUE;
28bf4b0b 3570 globSet_markImmutable (globs);
616915dd 3571 /*@-mustfree@*/ ue->info->fcn->globs = globs;
3572 /*@=mustfree@*/
3573 }
3574
28bf4b0b 3575 /*@i23 ???
616915dd 3576 if (globSet_hasStatic (globs))
3577 {
3578 context_recordFileGlobals (globs);
3579 }
28bf4b0b 3580 */
616915dd 3581
3582 if (context_getFlag (FLG_GLOBALSIMPMODIFIESNOTHING))
3583 {
3584 ue->info->fcn->hasMods = TRUE;
3585 }
3586}
3587
3588void uentry_addAccessType (uentry ue, typeId tid)
3589{
3590 if (uentry_isFunction (ue))
3591 {
3592 ue->info->fcn->access = typeIdSet_insert (ue->info->fcn->access, tid);
3593 }
3594 else if (uentry_isEitherConstant (ue))
3595 {
3596 ue->info->uconst->access = typeIdSet_insert (ue->info->uconst->access, tid);
3597 }
3598 else if (uentry_isIter (ue))
3599 {
3600 ue->info->iter->access = typeIdSet_insert (ue->info->iter->access, tid);
3601 }
3602 else if (uentry_isEndIter (ue))
3603 {
3604 ue->info->enditer->access = typeIdSet_insert (ue->info->enditer->access, tid);
3605 }
3606 else
3607 {
3608 llbug (message ("no access for: %q", uentry_unparse (ue)));
3609 }
3610}
3611
3612/*@only@*/ /*@notnull@*/ uentry
3613 uentry_makeFunction (cstring n, ctype t,
3614 typeId access,
3615 /*@only@*/ globSet globs, /*@only@*/ sRefSet mods,
28bf4b0b 3616 /*@only@*/ warnClause warn,
616915dd 3617 fileloc f)
3618{
28bf4b0b 3619 llassert (warnClause_isUndefined (warn)); /*@i325 remove parameter! */
616915dd 3620 return (uentry_makeFunctionAux (n, t,
3621 ((typeId_isInvalid (access)) ? typeIdSet_emptySet ()
3622 : typeIdSet_single (access)),
28bf4b0b 3623 globs, mods, warn,
3624 f,
616915dd 3625 FALSE, FALSE));
3626}
3627
3628# ifndef NOLCL
3629/*@notnull@*/ uentry
3630 uentry_makePrivFunction2 (cstring n, ctype t,
3631 typeIdSet access,
3632 globSet globs, sRefSet mods,
3633 fileloc f)
3634{
28bf4b0b 3635 return (uentry_makeFunctionAux (n, t, access, globs, mods, warnClause_undefined,
3636 f, TRUE, FALSE));
616915dd 3637}
3638
3639
3640/*@notnull@*/ uentry
3641 uentry_makeSpecFunction (cstring n, ctype t,
3642 typeIdSet access,
3643 /*@only@*/ globSet globs,
3644 /*@only@*/ sRefSet mods,
3645 fileloc f)
3646{
3647 uentry ue = uentry_makeFunctionAux (n, t, access,
28bf4b0b 3648 globs, mods, warnClause_undefined,
3649 f, FALSE, FALSE);
616915dd 3650
3651 uentry_setHasGlobs (ue);
3652 uentry_setHasMods (ue);
3653
3654 reflectImplicitFunctionQualifiers (ue, TRUE);
3655 return (ue);
3656}
3657# endif
3658
3659uentry uentry_makeExpandedMacro (cstring s, fileloc f)
3660{
3661 uentry ue = uentry_makeVariableAux (s, ctype_unknown, fileloc_undefined,
3662 sRef_undefined, FALSE, VKEXPMACRO);
3663
3664 uentry_setDefined (ue, f);
3665 return ue;
3666}
3667
3668/*@notnull@*/ /*@notnull@*/ uentry
3669 uentry_makeForwardFunction (cstring n, typeId access, fileloc f)
3670{
3671 uentry ue = uentry_makeFunctionAux (n, ctype_unknown,
3672 typeIdSet_singleOpt (access),
3673 globSet_undefined, sRefSet_undefined,
28bf4b0b 3674 warnClause_undefined,
616915dd 3675 fileloc_undefined,
3676 FALSE, TRUE);
3677
3678 ue->whereDeclared = fileloc_update (ue->whereDeclared, f);
3679 return ue;
3680}
3681
3682bool uentry_isForward (uentry e)
3683{
3684 if (uentry_isValid (e))
3685 {
3686 ctype ct = uentry_getType (e);
3687
3688 return (ctype_isUnknown (ct)
3689 || (ctype_isFunction (ct)
28bf4b0b 3690 && ctype_isUnknown (ctype_getReturnType (ct))));
616915dd 3691 }
3692
3693 return FALSE;
3694}
3695
3696# ifndef NOLCL
3697/*@notnull@*/ uentry
3698uentry_makeTypeListFunction (cstring n, typeIdSet access, fileloc f)
3699{
3700 return (uentry_makeFunctionAux (n, ctype_unknown, access,
28bf4b0b 3701 globSet_undefined, sRefSet_undefined, warnClause_undefined,
3702 f,FALSE, TRUE));
616915dd 3703}
3704
3705/*@notnull@*/ uentry
3706uentry_makeUnspecFunction (cstring n, ctype t,
3707 typeIdSet access,
3708 fileloc f)
3709{
28bf4b0b 3710 uentry ue = uentry_makeFunctionAux (n, t, access, globSet_undefined,
3711 sRefSet_undefined, warnClause_undefined,
3712 f, FALSE, TRUE);
616915dd 3713
3714 reflectImplicitFunctionQualifiers (ue, TRUE);
3715 return ue;
3716}
3717# endif
3718
3719/*
3720** datatypes
3721*/
3722
3723/* is exported for use by usymtab_interface */
3724
3725/*@notnull@*/ uentry
28bf4b0b 3726 uentry_makeDatatypeAux (cstring n, ctype t, ynm mut, ynm abstract,
616915dd 3727 fileloc f, bool priv)
3728{
3729 uentry e = uentry_alloc ();
3730
3731 DPRINTF (("Make datatype: %s / %s",
3732 n, ctype_unparse (t)));
3733
3734 /* e->shallowCopy = FALSE; */
3735 e->ukind = KDATATYPE;
3736 e->uname = cstring_copy (n);
3737 e->utype = t;
3738 e->storageclass = SCNONE;
3739 e->sref = sRef_makeUnknown ();
3740
3741 if (ctype_isUA (t))
3742 {
3743 sRef_setStateFromType (e->sref, t);
3744 }
3745
3746 uentry_setSpecDef (e, f);
3747
28bf4b0b 3748 e->warn = warnClause_undefined; /*@i634@*/
616915dd 3749 e->uses = filelocList_new ();
3750 e->isPrivate = priv;
3751 e->hasNameError = FALSE;
3752
3753 e->used = FALSE;
3754 e->lset = FALSE;
3755
3756 e->info = (uinfo) dmalloc (sizeof (*e->info));
3757 e->info->datatype = (udinfo) dmalloc (sizeof (*e->info->datatype));
28bf4b0b 3758 e->info->datatype->abs = abstract;
616915dd 3759 e->info->datatype->mut = mut;
3760 e->info->datatype->type = ctype_undefined;
3761
3762 if (uentry_isDeclared (e))
3763 {
3764 uentry_setDefined (e, f);
3765 }
3766
28bf4b0b 3767 if (ynm_isOn (abstract) && !(uentry_isCodeDefined (e)))
616915dd 3768 {
3769 sRef_setNullState (e->sref, NS_ABSNULL, uentry_whereDeclared (e));
3770 }
3771
3772 return (e);
3773}
3774
3775/*@notnull@*/ uentry
28bf4b0b 3776 uentry_makeDatatype (cstring n, ctype t, ynm mut, ynm abstract, fileloc f)
616915dd 3777{
28bf4b0b 3778 return (uentry_makeDatatypeAux (n, t, mut, abstract, f, FALSE));
616915dd 3779}
3780
28bf4b0b 3781/*@notnull@*/ uentry uentry_makeBoolDatatype (ynm abstract)
616915dd 3782{
3783 uentry ret = uentry_makeDatatypeAux (context_getBoolName (),
28bf4b0b 3784 ctype_bool, NO, abstract,
616915dd 3785 fileloc_getBuiltin (),
3786 FALSE);
3787
3788 ret->info->datatype->type = ctype_bool;
3789 return ret;
3790}
3791
3792/*
3793** iters
3794*/
3795
3796static /*@only@*/ /*@notnull@*/ uentry
3797 uentry_makeIterAux (cstring n, typeIdSet access, ctype ct,
3798 /*@only@*/ fileloc f)
3799{
3800 uentry e = uentry_alloc ();
3801
3802 e->ukind = KITER;
3803 e->uname = cstring_copy (n);
3804 e->utype = ct;
3805 e->sref = sRef_makeUnknown ();
3806 e->storageclass = SCNONE;
3807 e->used = FALSE;
3808 e->lset = FALSE;
3809
3810 uentry_setSpecDef (e, f);
3811
28bf4b0b 3812 e->warn = warnClause_undefined; /*@i452@*/
616915dd 3813 e->uses = filelocList_new ();
3814 e->isPrivate = FALSE;
3815 e->hasNameError = FALSE;
3816
3817 e->info = (uinfo) dmalloc (sizeof (*e->info));
3818 e->info->iter = (uiinfo) dmalloc (sizeof (*e->info->iter));
3819 e->info->iter->access = access;
3820 e->info->iter->mods = sRefSet_undefined;
3821 e->info->iter->globs = globSet_undefined;
3822
3823 uentry_checkIterArgs (e);
3824 return (e);
3825}
3826
3827/*@notnull@*/ uentry uentry_makeIter (cstring n, ctype ct, fileloc f)
3828{
3829 return (uentry_makeIterAux (n, context_fileAccessTypes (), ct, f));
3830}
3831
3832static /*@notnull@*/ uentry
3833uentry_makeEndIterAux (cstring n, typeIdSet access, /*@only@*/ fileloc f)
3834{
3835 uentry e = uentry_alloc ();
3836
3837 /* e->shallowCopy = FALSE; */
3838 e->ukind = KENDITER;
3839 e->storageclass = SCNONE;
3840 e->uname = message ("end_%s", n);
3841 e->utype = ctype_unknown;
3842 e->sref = sRef_makeUnknown ();
3843
3844 uentry_setSpecDef (e, f);
3845
3846 e->used = FALSE;
3847 e->lset = FALSE;
3848
3849 e->uses = filelocList_new ();
3850 e->isPrivate = FALSE;
3851 e->hasNameError = FALSE;
3852
3853 e->info = (uinfo) dmalloc (sizeof (*e->info));
3854 e->info->enditer = (ueinfo) dmalloc (sizeof (*e->info->enditer));
3855
3856 e->info->enditer->access = access;
3857
28bf4b0b 3858 e->warn = warnClause_undefined; /*@i452@*/
616915dd 3859 return (e);
3860}
3861
3862/*@notnull@*/ /*@only@*/ uentry uentry_makeEndIter (cstring n, fileloc f)
3863{
3864 return (uentry_makeEndIterAux (n, context_fileAccessTypes (), f));
3865}
3866
3867/*
3868** tags
3869*/
3870
3871static /*@only@*/ /*@notnull@*/ uentry
3872 uentry_makeTagAux (cstring n, ctype t,
3873 /*@only@*/ fileloc fl,
3874 bool priv, ekind kind)
3875{
3876 uentry e = uentry_alloc ();
3877
3878 if (kind != KSTRUCTTAG && kind != KUNIONTAG && kind != KENUMTAG)
3879 {
3880 llbuglit ("uentry_makeTagAux: not a tag type");
3881 }
3882
3883 e->ukind = kind;
3884 /* e->shallowCopy = FALSE; */
3885 e->uname = cstring_copy (n);
3886
3887 e->utype = t;
3888 e->sref = sRef_makeUnknown ();
3889 e->storageclass = SCNONE;
3890
3891 uentry_setSpecDef (e, fl);
3892
3893 e->used = FALSE;
3894 e->lset = FALSE;
3895
3896 e->uses = filelocList_new ();
3897 e->isPrivate = priv;
3898 e->hasNameError = FALSE;
3899
3900 e->info = (uinfo) dmalloc (sizeof (*e->info));
3901 e->info->datatype = (udinfo) dmalloc (sizeof (*e->info->datatype));
3902 e->info->datatype->abs = NO;
3903 e->info->datatype->mut = (kind == KENUMTAG) ? NO : MAYBE;
3904 e->info->datatype->type = t;
28bf4b0b 3905 e->warn = warnClause_undefined; /*@i452@*/
616915dd 3906
3907 if (uentry_isDeclared (e))
3908 {
3909 uentry_setDefined (e, fl);
3910 }
3911
3912 return (e);
3913}
3914
3915uentry uentry_makeStructTagLoc (cstring n, ctype t)
3916{
3917 cstring sname = makeStruct (n);
3918 uentry ret = uentry_makeTagAux (sname, t, setLocation (), FALSE, KSTRUCTTAG);
3919
3920 cstring_free (sname);
3921 return (ret);
3922}
3923
3924/*@only@*/ uentry
3925uentry_makeStructTag (cstring n, ctype t, fileloc loc)
3926{
3927 cstring sname = makeStruct (n);
3928 uentry ret = uentry_makeTagAux (sname, t, loc, FALSE, KSTRUCTTAG);
3929
3930 cstring_free (sname);
3931 return ret;
3932}
3933
3934/*@only@*/ uentry
3935uentry_makeUnionTag (cstring n, ctype t, fileloc loc)
3936{
3937 cstring uname = makeUnion (n);
3938 uentry ret = uentry_makeTagAux (uname, t, loc, FALSE, KUNIONTAG);
3939
3940 cstring_free (uname);
3941 return (ret);
3942}
3943
3944# ifndef NOLCL
3945uentry
3946uentry_makeEnumTag (cstring n, ctype t, fileloc loc)
3947{
3948 cstring ename = makeEnum (n);
3949 uentry ret = uentry_makeTagAux (ename, t, loc, FALSE, KENUMTAG);
3950
3951 cstring_free (ename);
3952 return ret;
3953}
3954# endif
3955
3956uentry
3957uentry_makeUnionTagLoc (cstring n, ctype t)
3958{
3959 cstring uname = makeUnion (n);
3960 uentry ret = uentry_makeTagAux (uname, t, setLocation (), FALSE, KUNIONTAG);
3961
3962 cstring_free (uname);
3963 return ret;
3964}
3965
3966uentry
3967uentry_makeEnumTagLoc (cstring n, ctype t)
3968{
3969 cstring ename = makeEnum (n);
3970 uentry ret = uentry_makeTagAux (ename, t, setLocation (), FALSE, KENUMTAG);
3971
3972 cstring_free (ename);
3973 return ret;
3974}
3975
3976bool
3977uentry_isStructTag (uentry ue)
3978{
3979 return (uentry_isValid (ue) && ue->ukind == KSTRUCTTAG);
3980}
3981
3982bool
3983uentry_isUnionTag (uentry ue)
3984{
3985 return (uentry_isValid (ue) && ue->ukind == KUNIONTAG);
3986}
3987
3988bool
3989uentry_isEnumTag (uentry ue)
3990{
3991 return (uentry_isValid (ue) && ue->ukind == KENUMTAG);
3992}
3993
3994bool
3995uentry_isAnyTag (uentry ue)
3996{
3997 return (uentry_isStructTag (ue)
3998 || uentry_isUnionTag (ue)
3999 || uentry_isEnumTag (ue));
4000}
4001
4002static /*@unchecked@*/ /*@only@*/ uentry emarker = NULL;
4003
4004extern void uentry_destroyMod (void)
4005 /*@globals killed emarker@*/ /*@modifies emarker@*/
4006{
4007 static bool wasDestroyed = FALSE;
4008
4009 llassert (!wasDestroyed);
4010
4011 if (emarker != NULL)
4012 {
4013 uentry_reallyFree (emarker);
4014 }
4015
4016 wasDestroyed = TRUE;
4017}
4018
4019uentry
4020uentry_makeElipsisMarker (void)
4021{
4022 if (emarker == NULL)
4023 {
4024 emarker = uentry_alloc ();
4025
4026 emarker->ukind = KELIPSMARKER;
4027 emarker->uname = cstring_makeLiteral ("...");
4028 emarker->utype = ctype_elipsMarker;
4029 emarker->sref = sRef_undefined;
4030 emarker->storageclass = SCNONE;
4031 emarker->used = FALSE;
4032 emarker->lset = FALSE;
4033 emarker->info = NULL;
4034
4035 uentry_setSpecDef (emarker, fileloc_undefined);
4036 emarker->uses = filelocList_new ();
4037 emarker->isPrivate = FALSE;
4038 emarker->hasNameError = FALSE;
4039 }
4040
4041 /*@ignore@*/ return (emarker); /*@end@*/
4042}
4043
4044/*
4045** comparisons
4046*/
4047
4048bool
4049uentry_equiv (uentry p1, uentry p2)
4050{
4051 if (uentry_compare (p1, p2) != 0)
4052 {
4053 return FALSE;
4054 }
4055 else
4056 {
4057 return TRUE;
4058 }
4059}
4060
4061int
4062uentry_xcomparealpha (uentry *p1, uentry *p2)
4063{
4064 int res;
4065
4066 if ((res = uentry_compare (*p1, *p2)) == 0) {
4067 if ((*p1 != NULL) && (*p2 != NULL)) {
4068 res = cstring_compare ((*p1)->uname,
4069 (*p2)->uname);
4070 }
4071 }
4072
4073 return res;
4074}
4075
4076int
4077uentry_xcompareuses (uentry *p1, uentry *p2)
4078{
4079 uentry u1 = *p1;
4080 uentry u2 = *p2;
4081
4082 if (uentry_isValid (u1))
4083 {
4084 if (uentry_isValid (u2))
4085 {
4086 return (-1 * int_compare (filelocList_size (u1->uses),
4087 filelocList_size (u2->uses)));
4088 }
4089 else
4090 {
4091 return 1;
4092 }
4093 }
4094 else
4095 {
4096 if (uentry_isValid (u2))
4097 {
4098 return -1;
4099 }
4100 else
4101 {
4102 return 0;
4103 }
4104 }
4105}
4106
4107int
4108uentry_compareStrict (uentry v1, uentry v2)
4109{
4110 COMPARERETURN (uentry_compare (v1, v2));
4111
4112 if (v1 != v2 && uentry_isValid (v1) && uentry_isValid (v2))
4113 {
4114 COMPARERETURN (fileloc_compare (v1->whereDeclared, v2->whereDeclared));
4115 COMPARERETURN (fileloc_compare (v1->whereDefined, v2->whereDefined));
4116 COMPARERETURN (fileloc_compare (v1->whereSpecified, v2->whereSpecified));
4117 }
4118
4119 return 0;
4120}
4121
4122int
4123uentry_compare (uentry u1, uentry u2)
4124{
4125 if (u1 == u2) return 0;
4126
4127 if (uentry_isInvalid (u1)) return -1;
4128 if (uentry_isInvalid (u2)) return 1;
4129
4130 INTCOMPARERETURN (u1->ukind, u2->ukind);
4131 COMPARERETURN (ctype_compare (u1->utype, u2->utype));
4132 COMPARERETURN (bool_compare (uentry_isPriv (u1), uentry_isPriv (u2)));
616915dd 4133 COMPARERETURN (sRef_compare (u1->sref, u2->sref));
4134
4135 switch (u1->ukind)
4136 {
4137 case KINVALID:
4138 case KELIPSMARKER:
4139 /* bug detected by lclint:
4140 ** uentry.c:753,14: Return value type bool does not match declared type int: TRUE
4141 */
4142 return 0;
4143 case KENUMCONST:
4144 case KCONST:
b9904f57 4145 return (multiVal_compare (uentry_getConstantValue (u1),
4146 uentry_getConstantValue (u2)));
616915dd 4147 case KSTRUCTTAG:
4148 case KUNIONTAG:
4149 case KENUMTAG:
4150 return (ctype_compare (u1->info->datatype->type, u2->info->datatype->type));
4151 case KITER:
4152 COMPARERETURN (typeIdSet_compare (uentry_accessType (u1),
4153 uentry_accessType (u2)));
4154 return (uentryList_compareParams (uentry_getParams (u1),
4155 uentry_getParams (u2)));
4156 case KENDITER:
4157 return (typeIdSet_compare (uentry_accessType (u1),
4158 uentry_accessType (u2)));
4159 case KFCN:
28bf4b0b 4160 /*
4161 ** Functions are never equivalent
4162 */
4163
4164 if ((int) u1 < (int) u2)
4165 {
4166 return -1;
4167 }
4168 else
4169 {
4170 return 1;
4171 }
4172 case KVAR:
4173
4174 COMPARERETURN (generic_compare (u1->info->var->kind, u2->info->var->kind));
4175 COMPARERETURN (generic_compare (sRef_getOrigAliasKind (u1->sref),
4176 sRef_getOrigAliasKind (u2->sref)));
4177 COMPARERETURN (generic_compare (sRef_getOrigExKind (u1->sref),
4178 sRef_getOrigExKind (u2->sref)));
616915dd 4179 COMPARERETURN (generic_compare (u1->info->var->checked,
4180 u2->info->var->checked));
4181 COMPARERETURN (generic_compare (u1->info->var->defstate,
4182 u2->info->var->defstate));
4183 return (generic_compare (u1->info->var->nullstate,
4184 u2->info->var->nullstate));
4185 case KDATATYPE:
4186 COMPARERETURN (ctype_compare (u1->info->datatype->type,
4187 u2->info->datatype->type));
4188 COMPARERETURN (ynm_compare (u1->info->datatype->mut,
4189 u2->info->datatype->mut));
4190 return (ynm_compare (u1->info->datatype->abs, u2->info->datatype->abs));
4191 }
4192
4193 BADEXIT;
4194}
4195
4196/*
4197** library format:
4198**
4199** all entries are: <type>[@<info>]*#<name>
4200**
4201** info depends on kind:
4202*/
4203
4204static void
4205advanceField (char **s)
4206{
28bf4b0b 4207 reader_checkChar (s, '@');
616915dd 4208}
4209
4210static void
4211advanceName (char **s)
4212{
28bf4b0b 4213 reader_checkChar (s, '#');
616915dd 4214}
4215
4216static vkind
4217vkind_fromInt (int i)
4218{
4219 if /*@+enumint@*/ (i < VKFIRST || i > VKLAST) /*@=enumint@*/
4220 {
4221 llbuglit ("vkind_fromInt: out of range");
4222 }
4223
4224 return (vkind)i;
4225}
4226
4227static uentry
4228 uentry_makeConstantBase (/*@only@*/ cstring name, ctype ct,
4229 typeIdSet access, nstate nullstate,
4230 /*@keep@*/ fileloc loc, /*@only@*/ multiVal m)
4231{
4232 uentry e = uentry_alloc ();
4233
4234 e->ukind = KCONST;
4235 e->uname = name;
4236 e->utype = ct;
4237 e->sref = sRef_makeConst (ct);
4238
4239 sRef_setNullState (e->sref, nullstate, loc);
4240 e->storageclass = SCNONE;
4241
4242 if (fileloc_isSpec (loc))
4243 {
4244 e->whereSpecified = loc;
4245 e->whereDeclared = fileloc_undefined;
4246 }
4247 else
4248 {
4249 e->whereSpecified = fileloc_undefined;
4250 e->whereDeclared = loc;
4251 }
4252
4253 e->whereDefined = fileloc_undefined;
4254 e->uses = filelocList_new ();
4255 e->isPrivate = FALSE;
4256 e->hasNameError = FALSE;
4257
4258 e->used = FALSE;
4259 e->lset = FALSE;
4260
28bf4b0b 4261 e->warn = warnClause_undefined; /*@i452@*/
4262
616915dd 4263 e->info = (uinfo) dmalloc (sizeof (*e->info));
4264 e->info->uconst = (ucinfo) dmalloc (sizeof (*e->info->uconst));
616915dd 4265 e->info->uconst->access = access;
4266
b9904f57 4267 uentry_setConstantValue (e, m);
616915dd 4268 sRef_storeState (e->sref);
4269
4270 return (e);
4271}
4272
4273static /*@only@*/ uentry
4274 uentry_makeVariableBase (/*@only@*/ cstring name, ctype ct, vkind kind,
4275 sstate defstate, nstate isnull, alkind aliased,
4276 exkind exp, chkind checked,
4277 /*@only@*/ fileloc loc)
4278{
4279 uentry e = uentry_alloc ();
4280
4281 e->ukind = KVAR;
4282 e->uname = name;
4283 e->utype = ct;
4284 e->storageclass = SCNONE;
4285
4286 e->sref = sRef_makeType (ct);
4287 sRef_setNullState (e->sref, isnull, loc);
4288
4289 e->whereDefined = fileloc_undefined;
4290
4291 if (fileloc_isSpec (loc))
4292 {
4293 e->whereSpecified = loc;
4294 e->whereDeclared = fileloc_undefined;
4295 }
4296 else
4297 {
4298 e->whereSpecified = fileloc_undefined;
4299 e->whereDeclared = loc;
4300 }
4301
4302 e->isPrivate = FALSE;
4303 e->hasNameError = FALSE;
4304
4305 e->used = FALSE;
4306 e->lset = FALSE;
4307
4308 e->uses = filelocList_new ();
28bf4b0b 4309 e->warn = warnClause_undefined; /*@i452@*/
616915dd 4310
4311 e->info = (uinfo) dmalloc (sizeof (*e->info));
4312 e->info->var = (uvinfo) dmalloc (sizeof (*e->info->var));
4313 e->info->var->kind = kind;
4314 e->info->var->checked = checked;
4315 e->info->var->defstate = defstate;
4316
4317 sRef_setDefState (e->sref, defstate, loc);
4318
4319 e->info->var->nullstate = sRef_getNullState (e->sref);
4320
4321 sRef_setExKind (e->sref, exp, loc);
4322 sRef_setAliasKind (e->sref, aliased, loc);
4323
4324 sRef_storeState (e->sref);
4325
4326 /*DRL ADDED 9-1-2000 */
4327 e->info->var->bufinfo = NULL;
4328
4329 return (e);
4330}
4331
4332static /*@only@*/ uentry
28bf4b0b 4333uentry_makeDatatypeBase (/*@only@*/ cstring name, ctype ct, ynm abstract,
616915dd 4334 ynm mut, ctype rtype, alkind ak, exkind exp,
4335 sstate defstate, nstate isnull,
4336 /*@only@*/ fileloc loc)
4337{
4338 uentry e = uentry_alloc ();
4339
4340 e->ukind = KDATATYPE;
4341 /* e->shallowCopy = FALSE; */
4342 e->uname = name;
4343 e->utype = ct;
4344 e->storageclass = SCNONE;
4345 e->sref = sRef_makeUnknown ();
28bf4b0b 4346 DPRINTF (("Merge null 1: %s", sRef_unparseFull (e->sref)));
616915dd 4347
4348 /*
4349 ** This is only setting null state. (I think?)
4350 */
4351
4352 if (ctype_isUA (ct))
4353 {
4354 uentry te = usymtab_getTypeEntrySafe (ctype_typeId (ct));
4355
4356 if (uentry_isValid (te))
4357 {
4358 sRef_setStateFromUentry (e->sref, te);
4359 }
4360 else
4361 {
4362 /* problem for recursive type definitions */
4363 }
4364 }
4365
4366 sRef_setAliasKind (e->sref, ak, loc);
4367 sRef_setExKind (e->sref, exp, loc);
4368
4369 sRef_setDefState (e->sref, defstate, loc);
4370
28bf4b0b 4371 if (ynm_isOn (abstract) && ctype_isUnknown (ct) && isnull == NS_UNKNOWN)
616915dd 4372 {
4373 isnull = NS_ABSNULL;
4374 }
4375
28bf4b0b 4376 DPRINTF (("Merge null: %s", sRef_unparseFull (e->sref)));
616915dd 4377 sRef_mergeNullState (e->sref, isnull);
4378
4379 e->whereDefined = fileloc_copy (loc); /*< bogus! (but necessary for lexer) >*/
4380
4381 if (fileloc_isSpec (loc))
4382 {
4383 e->whereSpecified = loc;
4384 e->whereDeclared = fileloc_undefined;
4385 }
4386 else
4387 {
4388 e->whereSpecified = fileloc_undefined;
4389 e->whereDeclared = loc;
4390 }
4391
4392 e->isPrivate = FALSE;
4393 e->hasNameError = FALSE;
4394
28bf4b0b 4395 e->warn = warnClause_undefined; /*@i452@*/
4396
616915dd 4397 e->used = FALSE;
4398 e->lset = FALSE;
4399 e->uses = filelocList_new ();
4400
4401 e->info = (uinfo) dmalloc (sizeof (*e->info));
4402 e->info->datatype = (udinfo) dmalloc (sizeof (*e->info->datatype));
28bf4b0b 4403 e->info->datatype->abs = abstract;
616915dd 4404 e->info->datatype->mut = mut;
4405 e->info->datatype->type = rtype;
28bf4b0b 4406
4407 DPRINTF (("About to store: %s", sRef_unparseFull (e->sref)));
616915dd 4408 sRef_storeState (e->sref);
28bf4b0b 4409 DPRINTF (("After store: %s", sRef_unparseFull (e->sref)));
616915dd 4410
4411 return (e);
4412}
4413
4414# ifndef NOLCL
4415static void uentry_setHasGlobs (uentry ue)
4416{
4417 llassert (uentry_isFunction (ue));
4418
4419 ue->info->fcn->hasGlobs = TRUE;
4420}
4421
4422static void uentry_setHasMods (uentry ue)
4423{
4424 llassert (uentry_isFunction (ue));
4425
4426 ue->info->fcn->hasMods = TRUE;
4427}
4428# endif
4429
4430bool uentry_hasGlobs (uentry ue)
4431{
4432 if (uentry_isFunction (ue))
4433 {
4434 return (ue->info->fcn->hasGlobs);
4435 }
4436
4437 return FALSE;
4438}
4439
28bf4b0b 4440bool uentry_hasStateClauseList (uentry ue)
616915dd 4441{
28bf4b0b 4442 return (uentry_isFunction (ue) && stateClauseList_isDefined (ue->info->fcn->specclauses));
616915dd 4443}
4444
ccf0a4a8 4445bool uentry_hasConditions (uentry ue)
4446{
4447 return (uentry_isFunction (ue)
4448 && (functionConstraint_isDefined (ue->info->fcn->preconditions)
4449 || functionConstraint_isDefined (ue->info->fcn->postconditions)));
4450}
4451
28bf4b0b 4452stateClauseList uentry_getStateClauseList (uentry ue)
616915dd 4453{
28bf4b0b 4454 if (!uentry_isFunction (ue))
4455 {
4456 llassert (uentry_isFunction (ue));
4457 return stateClauseList_undefined;
4458 }
4459
4460 DPRINTF (("Get state clause list: %s", uentry_unparse (ue)));
616915dd 4461 return ue->info->fcn->specclauses;
4462}
4463
4464bool uentry_hasMods (uentry ue)
4465{
4466 if (uentry_isFunction (ue))
4467 {
4468 return (ue->info->fcn->hasMods);
4469 }
4470
4471 return FALSE;
4472}
4473
4474static uentry
4475 uentry_makeFunctionBase (/*@only@*/ cstring name, ctype ct,
4476 typeIdSet access,
4477 bool hasGlobs, /*@only@*/ globSet globs,
4478 bool hasMods, /*@only@*/ sRefSet mods,
4479 alkind ak, exkind exp,
4480 sstate defstate, nstate isnull,
4481 exitkind exitCode,
4482 specCode sCode,
4483 qual nullPred,
28bf4b0b 4484 /*@only@*/ stateClauseList specclauses,
4485 /*@only@*/ warnClause warnclause,
616915dd 4486 /*@only@*/ fileloc loc)
4487{
4488 uentry e = uentry_alloc ();
4489 ctype ret;
4490
4491 /* e->shallowCopy = FALSE; */
4492 e->ukind = KFCN;
4493 e->uname = name;
4494 e->utype = ct;
4495 e->storageclass = SCNONE;
4496
4497 if (ctype_isFunction (ct))
4498 {
28bf4b0b 4499 ret = ctype_getReturnType (ct);
616915dd 4500 }
4501 else
4502 {
4503 if (ctype_isKnown (ct))
4504 {
4505 llbug (message ("not function: %s", ctype_unparse (ct)));
4506 }
4507
4508 ret = ctype_unknown;
4509 }
4510
4511 e->sref = sRef_makeType (ret);
4512
4513 if (ctype_isUA (ret))
4514 {
4515 sRef_setStateFromType (e->sref, ret);
4516 }
4517
4518 sRef_setDefined (e->sref, loc);
4519 sRef_setNullState (e->sref, isnull, loc);
4520
4521 sRef_setAliasKind (e->sref, ak, loc);
4522 sRef_setExKind (e->sref, exp, loc);
4523 sRef_setDefState (e->sref, defstate, loc);
4524
4525 e->whereSpecified = loc;
4526 e->whereDefined = fileloc_undefined;
4527
4528 e->isPrivate = FALSE;
4529 e->hasNameError = FALSE;
4530
4531 e->used = FALSE;
4532 e->lset = FALSE;
4533 e->uses = filelocList_new ();
28bf4b0b 4534 e->warn = warnclause;
616915dd 4535
4536 e->info = (uinfo) dmalloc (sizeof (*e->info));
4537 e->info->fcn = (ufinfo) dmalloc (sizeof (*e->info->fcn));
4538
4539 e->info->fcn->exitCode = exitCode;
4540 e->info->fcn->specialCode = sCode;
4541 e->info->fcn->nullPred = nullPred;
4542 e->info->fcn->access = access;
4543
4544 e->info->fcn->specclauses = specclauses;
4545 e->info->fcn->hasGlobs = hasGlobs;
4546 e->info->fcn->globs = globs;
4547
4548 e->info->fcn->hasMods = hasMods;
4549 e->info->fcn->mods = mods;
4550
4551 e->info->fcn->defparams = uentryList_undefined;
4552 e->whereDeclared = fileloc_undefined;
4553
4554 sRef_storeState (e->sref);
4555
4556 /*drl 111 30 2000*/
4557 e->info->fcn->preconditions = NULL;
4558 /* end drl */
4559
4560 /*drl 12 28 2000*/
4561 e->info->fcn->postconditions = NULL;
4562 /* end drl */
4563
4564 return (e);
4565}
4566
4567static /*@only@*/ uentry
4568 uentry_makeTagBase (/*@only@*/ cstring name, ekind tagkind,
4569 ctype ct, ctype rtype, /*@only@*/ fileloc loc)
4570{
4571 uentry e = uentry_alloc ();
4572
4573 if (tagkind != KSTRUCTTAG && tagkind != KUNIONTAG && tagkind != KENUMTAG)
4574 {
4575 llbuglit ("uentry_makeTagBase: not a tag type");
4576 }
4577
4578 /* e->shallowCopy = FALSE; */
4579 e->ukind = tagkind;
4580 e->uname = name;
4581 e->utype = ct;
4582 e->sref = sRef_makeUnknown ();
4583 e->storageclass = SCNONE;
4584
4585 if (fileloc_isSpec (loc))
4586 {
4587 e->whereSpecified = loc;
4588 e->whereDeclared = fileloc_undefined;
4589 }
4590 else
4591 {
4592 e->whereDeclared = loc;
4593 e->whereSpecified = fileloc_undefined;
4594 }
4595
4596 e->whereDefined = fileloc_undefined;
4597
4598 e->isPrivate = FALSE;
4599 e->hasNameError = FALSE;
4600
4601 e->used = FALSE;
4602 e->lset = FALSE;
4603 e->uses = filelocList_new ();
28bf4b0b 4604 e->warn = warnClause_undefined; /*@i452@*/
616915dd 4605
4606 e->info = (uinfo) dmalloc (sizeof (*e->info));
4607 e->info->datatype = (udinfo) dmalloc (sizeof (*e->info->datatype));
4608 e->info->datatype->abs = NO;
4609 e->info->datatype->mut = MAYBE;
4610 e->info->datatype->type = rtype;
4611
4612 sRef_storeState (e->sref);
4613
4614 return (e);
4615}
4616
4617static uentry
4618 uentry_makeIterBase (/*@only@*/ cstring name, typeIdSet access,
4619 ctype ct, /*@only@*/ fileloc loc)
4620{
4621 uentry e = uentry_alloc ();
4622
4623 /* e->shallowCopy = FALSE; */
4624 e->ukind = KITER;
4625 e->uname = name;
4626 e->utype = ct;
4627 e->sref = sRef_makeUnknown ();
4628 e->storageclass = SCNONE;
4629
4630 if (fileloc_isSpec (loc))
4631 {
4632 e->whereSpecified = loc;
4633 e->whereDeclared = fileloc_undefined;
4634 }
4635 else
4636 {
4637 e->whereDeclared = loc;
4638 e->whereSpecified = fileloc_undefined;
4639 }
4640
4641 e->whereDefined = fileloc_undefined;
4642
4643 e->isPrivate = FALSE;
4644 e->hasNameError = FALSE;
4645
4646 e->used = FALSE;
4647 e->lset = FALSE;
4648 e->uses = filelocList_new ();
28bf4b0b 4649 e->warn = warnClause_undefined; /*@i452@*/
616915dd 4650
4651 e->info = (uinfo) dmalloc (sizeof (*e->info));
4652 e->info->iter = (uiinfo) dmalloc (sizeof (*e->info->iter));
4653 e->info->iter->access = access;
4654 e->info->iter->mods = sRefSet_undefined;
4655 e->info->iter->globs = globSet_undefined;
4656
4657 sRef_storeState (e->sref);
4658 return (e);
4659}
4660
4661static uentry
4662 uentry_makeEndIterBase (/*@only@*/ cstring name, typeIdSet access,
4663 /*@only@*/ fileloc loc)
4664{
4665 uentry e = uentry_alloc ();
4666
4667 /* e->shallowCopy = FALSE; */
4668 e->ukind = KENDITER;
4669 e->storageclass = SCNONE;
4670 e->uname = name;
4671 e->utype = ctype_unknown;
4672 e->sref = sRef_makeUnknown ();
4673
4674 if (fileloc_isSpec (loc))
4675 {
4676 e->whereSpecified = loc;
4677 e->whereDeclared = fileloc_undefined;
4678 }
4679 else
4680 {
4681 e->whereDeclared = loc;
4682 e->whereSpecified = fileloc_undefined;
4683 }
4684
4685 e->whereDefined = fileloc_undefined;
4686
4687 e->isPrivate = FALSE;
4688 e->hasNameError = FALSE;
4689
4690 e->used = FALSE;
4691 e->lset = FALSE;
4692 e->uses = filelocList_new ();
28bf4b0b 4693 e->warn = warnClause_undefined; /*@i452@*/
616915dd 4694
4695 e->info = (uinfo) dmalloc (sizeof (*e->info));
4696 e->info->enditer = (ueinfo) dmalloc (sizeof (*e->info->enditer));
4697 e->info->enditer->access = access;
4698 sRef_storeState (e->sref);
4699
4700 return (e);
4701}
4702
4703void uentry_markFree (/*@unused@*/ /*@owned@*/ uentry u)
4704{
4705 /* should save u */
4706/*@-mustfree@*/
4707}
4708/*@=mustfree@*/
4709
4710/*@only@*/ uentry
4711uentry_undump (ekind kind, fileloc loc, char **s)
4712{
4713 uentry ue;
4714
28bf4b0b 4715 DPRINTF (("Uentry undump: %s", *s));
4716
616915dd 4717 if (**s == '!')
4718 {
28bf4b0b 4719 reader_checkChar (s, '!');
4720 reader_checkChar (s, '.');
616915dd 4721 ue = uentry_makeElipsisMarker ();
4722 }
4723 else
4724 {
4725 ctype ct = ctype_undump (s);
4726 cstring name;
4727
4728 switch (kind)
4729 {
4730 case KVAR:
4731 {
4732 vkind tkind;
4733 sstate defstate;
4734 nstate isnull;
4735 alkind aliased;
4736 exkind exp;
4737 chkind checked;
4738
28bf4b0b 4739 reader_checkChar (s, '|');
616915dd 4740
28bf4b0b 4741 if (reader_optCheckChar (s, '@'))
616915dd 4742 {
28bf4b0b 4743 tkind = vkind_fromInt (reader_getInt (s));
4744 reader_checkChar (s, '|');
616915dd 4745 }
4746 else
4747 {
4748 tkind = VKPARAM;
4749 }
4750
28bf4b0b 4751 if (reader_optCheckChar (s, '$'))
616915dd 4752 {
4753 defstate = SS_UNKNOWN;
4754 isnull = NS_UNKNOWN;
4755 aliased = AK_IMPTEMP;
4756 exp = XO_UNKNOWN;
4757 checked = CH_UNKNOWN;
4758 }
28bf4b0b 4759 else if (reader_optCheckChar (s, '&'))
616915dd 4760 {
4761 defstate = SS_DEFINED;
4762 isnull = NS_UNKNOWN;
4763 aliased = AK_IMPTEMP;
4764 exp = XO_UNKNOWN;
4765 checked = CH_UNKNOWN;
4766 }
28bf4b0b 4767 else if (reader_optCheckChar (s, '^'))
616915dd 4768 {
4769 defstate = SS_UNKNOWN;
4770 isnull = NS_UNKNOWN;
4771 aliased = AK_IMPTEMP;
4772 exp = XO_UNKNOWN;
4773 checked = CH_UNKNOWN;
4774 }
4775 else
4776 {
28bf4b0b 4777 defstate = sstate_fromInt (reader_getInt (s));
4778 advanceField (s); isnull = nstate_fromInt (reader_getInt (s));
4779 advanceField (s); aliased = alkind_fromInt (reader_getInt (s));
616915dd 4780
28bf4b0b 4781 if (reader_optCheckChar (s, '&'))
616915dd 4782 {
4783 exp = XO_UNKNOWN;
4784 checked = CH_UNKNOWN;
4785 }
4786 else
4787 {
28bf4b0b 4788 advanceField (s); exp = exkind_fromInt (reader_getInt (s));
4789 advanceField (s); checked = (chkind) (reader_getInt (s));
616915dd 4790 }
4791 }
4792
4793 advanceName (s);
28bf4b0b 4794 name = reader_getStringWord (s);
616915dd 4795
28bf4b0b 4796 llassert (!cstring_equal (name, GLOBAL_MARKER_NAME));
4797
616915dd 4798 ue = uentry_makeVariableBase (name, ct, tkind, defstate,
4799 isnull, aliased, exp,
4800 checked, fileloc_copy (loc));
4801 }
4802 break;
4803 case KDATATYPE:
4804 {
28bf4b0b 4805 ynm abstract;
616915dd 4806 ynm mut;
4807 ctype rtype;
4808 sstate defstate;
4809 nstate isnull;
4810 alkind aliased;
4811 exkind exp;
4812
28bf4b0b 4813 advanceField (s); abstract = ynm_fromCodeChar (reader_loadChar (s));
4814 advanceField (s); mut = ynm_fromCodeChar (reader_loadChar (s));
4815 advanceField (s); defstate = sstate_fromInt (reader_getInt (s));
4816 advanceField (s); isnull = nstate_fromInt (reader_getInt (s));
4817 advanceField (s); aliased = alkind_fromInt (reader_getInt (s));
4818 advanceField (s); exp = exkind_fromInt (reader_getInt (s));
616915dd 4819 advanceField (s); rtype = ctype_undump (s);
4820 advanceName (s);
28bf4b0b 4821 name = reader_getStringWord (s);
4822 DPRINTF (("Datatype %s, Exp = %s", name, exkind_unparse (exp)));
4823 ue = uentry_makeDatatypeBase (name, ct, abstract, mut, rtype,
616915dd 4824 aliased, exp, defstate, isnull,
4825 fileloc_copy (loc));
4826 }
4827 break;
4828 case KFCN:
4829 {
4830 alkind ak;
4831 exkind exp;
4832 sstate defstate;
4833 nstate isnull;
4834 exitkind exitCode;
4835 specCode specc;
4836 qual nullPred;
4837 typeIdSet access;
4838 bool hasGlobs;
4839 globSet globs;
4840 bool hasMods;
4841 sRefSet mods;
28bf4b0b 4842 stateClauseList specclauses = stateClauseList_undefined;
4843 warnClause warnclause = warnClause_undefined;
616915dd 4844
28bf4b0b 4845 if (reader_optCheckChar (s, '$'))
616915dd 4846 {
4847 defstate = SS_DEFINED;
4848 isnull = NS_UNKNOWN;
4849 exitCode = XK_UNKNOWN;
4850 specc = SPC_NONE;
28bf4b0b 4851 nullPred = qual_createUnknown ();
616915dd 4852 }
4853 else
4854 {
28bf4b0b 4855 advanceField (s); defstate = sstate_fromInt (reader_getInt (s));
4856 advanceField (s); isnull = nstate_fromInt (reader_getInt (s));
4857 advanceField (s); exitCode = exitkind_fromInt (reader_getInt (s));
4858 advanceField (s); specc = specCode_fromInt (reader_getInt (s));
4859 advanceField (s); nullPred = qual_undump (s);
616915dd 4860 }
4861
28bf4b0b 4862 if (reader_optCheckChar (s, '$'))
616915dd 4863 {
4864 hasGlobs = FALSE;
4865 globs = globSet_undefined;
4866 hasMods = FALSE;
4867 mods = sRefSet_undefined;
4868 }
28bf4b0b 4869 else if (reader_optCheckChar (s, '^'))
616915dd 4870 {
4871 hasGlobs = TRUE;
4872 globs = globSet_undefined;
4873 hasMods = TRUE;
4874 mods = sRefSet_undefined;
4875 }
4876 else
4877 {
28bf4b0b 4878 advanceField (s); hasGlobs = bool_fromInt (reader_getInt (s));
616915dd 4879 advanceField (s); globs = globSet_undump (s);
28bf4b0b 4880 advanceField (s); hasMods = bool_fromInt (reader_getInt (s));
616915dd 4881 advanceField (s); mods = sRefSet_undump (s);
4882 }
4883
28bf4b0b 4884 if (reader_optCheckChar (s, '$'))
616915dd 4885 {
4886 ak = AK_UNKNOWN;
4887 exp = XO_UNKNOWN;
4888 }
4889 else
4890 {
28bf4b0b 4891 advanceField (s); ak = alkind_fromInt (reader_getInt (s));
4892 advanceField (s); exp = exkind_fromInt (reader_getInt (s));
616915dd 4893 }
4894
4895 advanceField (s); access = typeIdSet_undump (s);
4896
28bf4b0b 4897 /*
4898 ** Optional clauses: Start with @<code>:
4899 */
4900
4901 while (reader_optCheckChar (s, '@'))
616915dd 4902 {
28bf4b0b 4903 if (reader_optCheckChar (s, 'W')) /* Warn clause */
4904 {
4905 reader_checkChar (s, ':');
4906 warnclause = warnClause_undump (s);
4907 }
4908 else if (reader_optCheckChar (s, 'S')) /* stateClause List */
4909 {
4910 reader_checkChar (s, ':');
4911 specclauses = stateClauseList_undump (s);
4912 }
4913 else
4914 {
4915 BADBRANCH;
4916 }
616915dd 4917 }
4918
28bf4b0b 4919 advanceName (s); name = reader_getStringWord (s);
616915dd 4920
4921 ue = uentry_makeFunctionBase (name, ct, access,
4922 hasGlobs, globs,
4923 hasMods, mods,
4924 ak, exp, defstate, isnull,
4925 exitCode, specc, nullPred,
4926 specclauses,
28bf4b0b 4927 warnclause,
616915dd 4928 fileloc_copy (loc));
4929 DPRINTF (("Undump: %s", uentry_unparse (ue)));
4930 }
4931 break;
4932 case KITER:
4933 {
4934 typeIdSet access;
4935
4936 advanceField (s); access = typeIdSet_undump (s);
28bf4b0b 4937 advanceName (s); name = reader_getStringWord (s);
616915dd 4938
4939 ue = uentry_makeIterBase (name, access, ct,
4940 fileloc_copy (loc));
4941 }
4942 break;
4943 case KENDITER:
4944 {
4945 typeIdSet access;
4946
4947 advanceField (s); access = typeIdSet_undump (s);
28bf4b0b 4948 advanceName (s); name = reader_getStringWord (s);
616915dd 4949
4950 ue = uentry_makeEndIterBase (name, access, fileloc_copy (loc));
4951 }
4952 break;
4953 case KENUMCONST:
4954 case KCONST:
4955 {
4956 typeIdSet access;
4957 multiVal val;
4958 nstate nullstate;
4959
28bf4b0b 4960 if (reader_optCheckChar (s, '$'))
616915dd 4961 {
4962 val = multiVal_undefined;
4963 access = typeIdSet_undefined;
4964 nullstate = NS_UNKNOWN;
4965 }
4966 else
4967 {
4968 advanceField (s); val = multiVal_undump (s);
4969 advanceField (s); access = typeIdSet_undump (s);
28bf4b0b 4970 advanceField (s); nullstate = nstate_fromInt (reader_getInt (s));
616915dd 4971 }
4972
28bf4b0b 4973 advanceName (s); name = reader_getStringWord (s);
616915dd 4974
4975 ue = uentry_makeConstantBase (name, ct, access,
4976 nullstate, fileloc_copy (loc), val);
4977 break;
4978 }
4979 case KSTRUCTTAG:
4980 case KUNIONTAG:
4981 case KENUMTAG:
4982 {
4983 ctype rtype;
4984
4985 advanceField (s); rtype = ctype_undump (s);
28bf4b0b 4986 advanceName (s); name = reader_getStringWord (s);
616915dd 4987 ue = uentry_makeTagBase (name, kind, ct, rtype, fileloc_copy (loc));
4988 }
4989 break;
4990 case KINVALID:
4991 llcontbuglit ("uentry_undump: invalid");
4992 ue = uentry_undefined;
4993 break;
4994 case KELIPSMARKER:
4995 llcontbuglit ("uentry_undump: elips marker");
4996 ue = uentry_undefined;
4997 break;
4998 }
4999 }
5000
5001 return (ue);
5002}
5003
5004cstring
5005uentry_dump (uentry v)
5006{
5007 return (uentry_dumpAux (v, FALSE));
5008}
5009
5010cstring
5011uentry_dumpParam (uentry v)
5012{
5013 llassertprint (uentry_isVariable (v) || uentry_isElipsisMarker (v),
5014 ("dump: %s", uentry_unparseFull (v)));
5015
5016 return (uentry_dumpAux (v, TRUE));
5017}
5018
5019static cstring
5020uentry_dumpAux (uentry v, bool isParam)
5021{
5022 llassert (uentry_isValid (v));
28bf4b0b 5023 llassert (!uentry_isGlobalMarker (v));
616915dd 5024
28bf4b0b 5025 DPRINTF (("Dump uentry: [%p]", v));
616915dd 5026 DPRINTF (("Dumping entry: %s", uentry_unparseFull (v)));
28bf4b0b 5027
616915dd 5028 switch (v->ukind)
5029 {
5030 case KINVALID:
5031 llcontbuglit ("uentry_dump: invalid entry");
5032 return cstring_undefined;
5033 case KELIPSMARKER:
5034 return (message ("!."));
5035 case KVAR:
5036 {
5037 cstring sdump;
5038 vkind vk = v->info->var->kind;
5039 sstate dss = sRef_getDefState (v->sref);
5040 nstate nst = sRef_getNullState (v->sref);
5041 alkind alk = sRef_getAliasKind (v->sref);
5042 exkind exk = sRef_getExKind (v->sref);
5043 chkind chk = v->info->var->checked;
5044
5045 DPRINTF (("Dumping var"));
5046
5047 if (dss == SS_UNKNOWN
5048 && nst == NS_UNKNOWN
5049 && alk == AK_IMPTEMP
5050 && exk == XO_UNKNOWN
5051 && chk == CH_UNKNOWN)
5052 {
5053 sdump = cstring_makeLiteral ("$");
5054 }
5055 else if (dss == SS_DEFINED
5056 && nst == NS_UNKNOWN
5057 && alk == AK_IMPTEMP
5058 && exk == XO_UNKNOWN
5059 && chk == CH_UNKNOWN)
5060 {
5061 sdump = cstring_makeLiteral ("&");
5062 }
5063 else if (dss == SS_UNKNOWN
5064 && nst == NS_UNKNOWN
5065 && alk == AK_UNKNOWN
5066 && exk == XO_UNKNOWN
5067 && chk == CH_UNKNOWN)
5068 {
5069 sdump = cstring_makeLiteral ("^");
5070 }
5071 else if (exk == XO_UNKNOWN
5072 && chk == CH_UNKNOWN)
5073 {
5074 sdump = message ("%d@%d@%d&",
5075 (int) dss,
5076 (int) nst,
5077 (int) alk);
5078 }
5079 else
5080 {
5081 sdump = message ("%d@%d@%d@%d@%d",
5082 (int) dss,
5083 (int) nst,
5084 (int) alk,
5085 (int) exk,
5086 (int) chk);
5087 }
5088
5089
5090 if (vk != VKPARAM)
5091 {
5092 return (message ("%q|@%d|%q#%s",
5093 ctype_dump (v->utype),
5094 (int) vk,
5095 sdump,
5096 isParam ? cstring_undefined : v->uname));
5097 }
5098 else
5099 {
5100 return (message ("%q|%q#%s",
5101 ctype_dump (v->utype),
5102 sdump,
5103 isParam ? cstring_undefined : v->uname));
5104 }
5105
5106 }
5107 case KDATATYPE:
28bf4b0b 5108 /*
5109 DPRINTF (("Dumping datatype: %s -> %s type: %s [%d]",
5110 uentry_unparse (v),
5111 exkind_unparse (sRef_getExKind (v->sref)),
5112 ctype_unparse (v->utype), (int) v->utype));
5113 */
5114
616915dd 5115 return (message ("%q@%s@%s@%d@%d@%d@%d@%q#%s",
5116 ctype_dump (v->utype),
5117 ynm_unparseCode (v->info->datatype->abs),
5118 ynm_unparseCode (v->info->datatype->mut),
5119 (int) sRef_getDefState (v->sref),
5120 (int) sRef_getNullState (v->sref),
5121 (int) sRef_getAliasKind (v->sref),
5122 (int) sRef_getExKind (v->sref),
5123 ctype_dump (v->info->datatype->type),
5124 v->uname));
5125 case KFCN:
5126 {
28bf4b0b 5127 cstring sdump, gdump, adump, xdump;
616915dd 5128 alkind alk = sRef_getAliasKind (v->sref);
5129 exkind exk = sRef_getExKind (v->sref);
5130
5131 if (sRef_getDefState (v->sref) == SS_DEFINED
5132 && !nstate_isKnown (sRef_getNullState (v->sref))
5133 && !exitkind_isKnown (v->info->fcn->exitCode)
5134 && v->info->fcn->specialCode == SPC_NONE
28bf4b0b 5135 && qual_isUnknown (v->info->fcn->nullPred))
616915dd 5136 {
5137 sdump = cstring_makeLiteral ("$");
5138 }
5139 else
5140 {
28bf4b0b 5141 sdump = message ("@%d@%d@%d@%d@%x",
616915dd 5142 (int) sRef_getDefState (v->sref),
5143 (int) sRef_getNullState (v->sref),
5144 (int) v->info->fcn->exitCode,
5145 (int) v->info->fcn->specialCode,
28bf4b0b 5146 qual_dump (v->info->fcn->nullPred));
616915dd 5147 }
5148
5149 if (!uentry_hasGlobs(v) && !uentry_hasMods (v))
5150 {
5151 gdump = cstring_makeLiteral ("$");
5152 }
5153 else if (uentry_hasGlobs (v) && globSet_isEmpty (uentry_getGlobs (v))
5154 && uentry_hasMods (v) && sRefSet_isEmpty (uentry_getMods (v)))
5155 {
5156 gdump = cstring_makeLiteral ("^");
5157 }
5158 else
5159 {
5160 gdump = message ("@%s@%q@%s@%q",
5161 bool_dump (uentry_hasGlobs (v)),
5162 globSet_dump (uentry_getGlobs (v)),
5163 bool_dump (uentry_hasMods (v)),
5164 sRefSet_dump (uentry_getMods (v)));
5165 }
5166
5167 if (alk == AK_UNKNOWN && exk == XO_UNKNOWN)
5168 {
5169 adump = cstring_makeLiteral ("$");
5170 }
5171 else
5172 {
5173 adump = message ("@%d@%d", (int) alk, (int) exk);
5174 }
5175
28bf4b0b 5176 xdump = cstring_undefined;
5177
5178 if (uentry_hasWarning (v))
616915dd 5179 {
28bf4b0b 5180 xdump = message ("%q@W:%q", xdump, warnClause_dump (v->warn));
616915dd 5181 }
28bf4b0b 5182
5183 if (uentry_hasStateClauseList (v))
616915dd 5184 {
28bf4b0b 5185 xdump = message ("%q@S:%q", xdump, stateClauseList_dump (v->info->fcn->specclauses));
616915dd 5186 }
28bf4b0b 5187
5188 return (message ("%q%q%q%q@%q%q#%s",
5189 ctype_dump (v->utype),
5190 sdump,
5191 gdump,
5192 adump,
5193 typeIdSet_dump (uentry_accessType (v)),
5194 xdump,
5195 v->uname));
616915dd 5196 }
5197 case KITER:
5198 return (message ("%q@%q#%s",
5199 ctype_dump (v->utype),
5200 typeIdSet_dump (v->info->iter->access),
5201 v->uname));
5202 case KENDITER:
5203 return (message ("%q@%q#%s",
5204 ctype_dump (v->utype),
5205 typeIdSet_dump (uentry_accessType (v)),
5206 v->uname));
5207 case KENUMCONST:
5208 case KCONST:
5209 {
5210 cstring sdump;
5211
b9904f57 5212 if (multiVal_isUnknown (uentry_getConstantValue (v))
616915dd 5213 && typeIdSet_isEmpty (uentry_accessType (v))
5214 && (sRef_getNullState (v->sref) == NS_UNKNOWN))
5215 {
5216 sdump = cstring_makeLiteral ("$");
5217 }
5218 else
5219 {
5220 sdump = message ("@%q@%q@%d",
b9904f57 5221 multiVal_dump (uentry_getConstantValue (v)),
616915dd 5222 typeIdSet_dump (uentry_accessType (v)),
5223 (int) sRef_getNullState (v->sref));
5224 }
5225
5226 return (message ("%q%q#%s",
5227 ctype_dump (v->utype),
5228 sdump,
5229 v->uname));
5230 }
5231 case KSTRUCTTAG:
5232 case KUNIONTAG:
5233 case KENUMTAG:
5234 return (message ("%q@%q#%s",
5235 ctype_dump (v->utype),
5236 ctype_dump (v->info->datatype->type), v->uname));
5237 }
5238
5239 BADEXIT;
5240}
5241
5242/*@only@*/ cstring
5243uentry_unparseAbbrev (uentry v)
5244{
5245 if (!uentry_isVariable (v))
5246 {
5247 llcontbuglit ("uentry_unparseAbbrev: not variable");
5248 return uentry_unparse (v);
5249 }
5250
5251 return (message ("%s %q", ctype_unparseDeep (v->utype), uentry_getName (v)));
5252}
5253
5254/*@only@*/ cstring
5255uentry_unparse (uentry v)
5256{
5257 cstring st;
5258
5259 if (uentry_isUndefined (v)) return (cstring_makeLiteral ("<undefined>"));
5260 if (uentry_isElipsisMarker (v)) return (cstring_makeLiteral ("..."));
5261
5262 st = uentry_getName (v);
5263
5264 if (cstring_isDefined (st))
5265 {
5266 return (ctype_unparseDeclaration (v->utype, st));
5267 }
5268 else
5269 {
5270 cstring_free (st);
5271 return (cstring_copy (ctype_unparse (v->utype)));
5272 }
5273}
5274
5275/*@only@*/ cstring
5276uentry_unparseFull (uentry v)
5277{
5278 if (uentry_isUndefined (v))
5279 {
5280 return (cstring_makeLiteral ("<undefined>"));
5281 }
616915dd 5282 else
5283 {
28bf4b0b 5284 cstring res;
5285
5286 res = message ("[%w] %s %s: %s [spec: %q; decl: %q; def: %q]",
5287 (unsigned long) v, ekind_unparse (v->ukind), v->uname,
5288 ctype_unparse (v->utype),
5289 fileloc_unparse (uentry_whereSpecified (v)),
5290 fileloc_unparse (uentry_whereDeclared (v)),
5291 fileloc_unparse (uentry_whereDefined (v)));
5292
5293 DPRINTF (("uentry: %s", res));
5294
5295 if (uentry_isDatatype (v))
5296 {
5297 res = message ("%q / type: %s mut: %s abs: %s state: %q",
5298 res,
5299 ctype_unparse
5300 (ctype_isDefined (v->info->datatype->type)
5301 ? v->info->datatype->type : ctype_unknown),
5302 ynm_unparse (v->info->datatype->mut),
5303 ynm_unparse (v->info->datatype->abs),
5304 sRef_unparseState (v->sref));
5305 }
5306 else if (uentry_isFunction (v))
5307 {
5308 res = message ("%q / sref: %q / mods: %q / "
ba45e1e4 5309 "globs: %q / clauses: %q / pre: %q / post: %q",
28bf4b0b 5310 res,
5311 sRef_unparseFull (v->sref),
5312 sRefSet_unparse (v->info->fcn->mods),
5313 globSet_unparse (v->info->fcn->globs),
ba45e1e4 5314 stateClauseList_unparse (v->info->fcn->specclauses),
5315 functionConstraint_unparse (v->info->fcn->preconditions),
5316 functionConstraint_unparse (v->info->fcn->postconditions));
28bf4b0b 5317 }
5318 else if (uentry_isIter (v))
5319 {
5320 res = message ("%q / sref: %q",
5321 res,
5322 sRef_unparseFull (v->sref));
5323 }
5324 else if (uentry_isVariable (v))
5325 {
5326 res = message ("%q / sref: %q / kind <%d> isout <%d> null <%d> used <%d>",
5327 res,
5328 sRef_unparseFull (v->sref),
5329 (int) v->info->var->kind,
5330 (int) v->info->var->defstate,
5331 (int) v->info->var->nullstate,
5332 (int) v->used);
5333 DPRINTF (("sref: [%p]", v->sref));
5334 DPRINTF (("sref: %s", sRef_unparseDebug (v->sref)));
5335 /* DPRINTF (("sref: %s", sRef_unparseDeep (v->sref))); */
5336 }
b9904f57 5337 else if (uentry_isConstant (v))
5338 {
5339 res = message ("%q = %q",
5340 res, multiVal_unparse (uentry_getConstantValue (v)));
5341 }
28bf4b0b 5342 else
5343 {
5344 res = message ("%q :: %q", res, uentry_unparse (v));
5345 }
5346
5347 return res;
616915dd 5348 }
5349}
5350
5351bool uentry_hasAccessType (uentry e)
5352{
5353 if (uentry_isValid (e))
5354 {
5355 switch (e->ukind)
5356 {
5357 case KITER:
5358 return (!typeIdSet_isEmpty (e->info->iter->access));
5359 case KENDITER:
5360 return (!typeIdSet_isEmpty (e->info->enditer->access));
5361 case KFCN:
5362 return (!typeIdSet_isEmpty (e->info->fcn->access));
5363 case KENUMCONST:
5364 case KCONST:
5365 return (!typeIdSet_isEmpty (e->info->uconst->access));
5366 default:
5367 return FALSE;
5368 }
5369 }
5370
5371 return FALSE;
5372}
5373
5374typeIdSet uentry_accessType (uentry e)
5375{
5376 if (uentry_isValid (e))
5377 {
5378 switch (e->ukind)
5379 {
5380 case KITER:
5381 return (e->info->iter->access);
5382 case KENDITER:
5383 return (e->info->enditer->access);
5384 case KFCN:
5385 return (e->info->fcn->access);
5386 case KENUMCONST:
5387 case KCONST:
5388 return (e->info->uconst->access);
5389 default:
5390 break;
5391 }
5392 }
5393
5394 return typeIdSet_undefined;
5395}
5396
5397bool
5398uentry_isVariable (uentry e)
5399{
5400 return (uentry_isVar (e));
5401}
5402
5403bool
5404uentry_isSpecified (uentry e)
5405{
5406 return (uentry_isValid (e) && !fileloc_isUndefined (e->whereSpecified));
5407}
5408
5409static bool
5410uentry_isReallySpecified (uentry e)
5411{
5412 return (uentry_isValid (e)
5413 && fileloc_isRealSpec (e->whereSpecified));
5414}
5415
5416bool
5417uentry_isVar (uentry e)
5418{
5419 return (!uentry_isUndefined (e) && e->ukind == KVAR);
5420}
5421
5422bool
5423uentry_isFakeTag (uentry e)
5424{
5425 return (uentry_isValid (e) && strchr (cstring_toCharsSafe (e->uname), '!') != 0);
5426}
5427
5428bool
5429uentry_isDatatype (uentry e)
5430{
5431 return (!uentry_isUndefined (e) &&
5432 (e->ukind == KDATATYPE || e->ukind == KSTRUCTTAG ||
5433 e->ukind == KUNIONTAG || e->ukind == KENUMTAG));
5434}
5435
5436void
5437uentry_setAbstract (uentry e)
5438{
5439 typeId oldid;
5440
5441 llassert (uentry_isDatatype (e)
5442 && (ynm_isMaybe (e->info->datatype->abs)));
5443
5444 oldid = ctype_typeId (e->info->datatype->type);
5445 e->info->datatype->abs = YES;
5446 e->info->datatype->type = ctype_createAbstract (oldid);
5447}
5448
5449void
5450uentry_setConcrete (uentry e)
5451{
5452 llassert (uentry_isDatatype (e)
5453 && (ynm_isMaybe (e->info->datatype->abs)));
5454
5455 e->info->datatype->abs = NO;
5456}
5457
5458bool
5459uentry_isAbstractDatatype (uentry e)
5460{
5461 return (uentry_isDatatype (e)
5462 && (ynm_isOn (e->info->datatype->abs)));
5463}
5464
5465bool
5466uentry_isMaybeAbstract (uentry e)
5467{
5468 return (uentry_isDatatype (e)
5469 && (ynm_isMaybe (e->info->datatype->abs)));
5470}
5471
5472bool
5473uentry_isMutableDatatype (uentry e)
5474{
5475 bool res = uentry_isDatatype (e)
5476 && (ynm_toBoolRelaxed (e->info->datatype->mut));
5477
5478 return res;
5479}
5480
5481bool
5482uentry_isRefCountedDatatype (uentry e)
5483{
5484 return (uentry_isDatatype (e) && (sRef_isRefCounted (uentry_getSref (e))));
5485}
5486
5487bool
5488uentry_isParam (uentry u)
5489{
5490 return (uentry_isVariable (u) && (u->info->var->kind == VKPARAM
5491 || u->info->var->kind == VKYIELDPARAM));
5492}
5493
5494bool
5495uentry_isExpandedMacro (uentry u)
5496{
5497 return (uentry_isVariable (u) && (u->info->var->kind == VKEXPMACRO));
5498}
5499
5500bool
5501uentry_isSefParam (uentry u)
5502{
5503 return (uentry_isVariable (u)
5504 && (u->info->var->kind == VKSEFPARAM
5505 || u->info->var->kind == VKREFSEFPARAM
5506 || u->info->var->kind == VKSEFRETPARAM
5507 || u->info->var->kind == VKREFSEFRETPARAM));
5508}
5509
5510bool
5511uentry_isRefParam (uentry u)
5512{
5513 return (uentry_isVariable (u)
5514 && (u->info->var->kind == VKREFPARAM
5515 || u->info->var->kind == VKREFYIELDPARAM
5516 || u->info->var->kind == VKREFSEFPARAM
5517 || u->info->var->kind == VKREFSEFRETPARAM));
5518}
5519
5520bool
5521uentry_isAnyParam (uentry u)
5522{
5523 return (uentry_isVariable (u)
5524 && ((u->info->var->kind == VKPARAM)
5525 || (u->info->var->kind == VKSEFPARAM)
5526 || (u->info->var->kind == VKYIELDPARAM)
5527 || (u->info->var->kind == VKRETPARAM)
5528 || (u->info->var->kind == VKSEFRETPARAM)));
5529}
5530
5531sstate
5532uentry_getDefState (uentry u)
5533{
5534 if (uentry_isValid (u))
5535 {
5536 return (sRef_getDefState (u->sref));
5537 }
5538 else
5539 {
5540 return (SS_UNKNOWN);
5541 }
5542}
5543
5544bool
5545uentry_isOut (uentry u)
5546{
5547 return ((uentry_isVariable (u) && (u->info->var->defstate == SS_ALLOCATED))
5548 || (uentry_isDatatype (u) && (sRef_isAllocated (u->sref))));
5549}
5550
5551bool
5552uentry_isPartial (uentry u)
5553{
5554 return ((uentry_isVariable (u) && (u->info->var->defstate == SS_PARTIAL))
5555 || (uentry_isDatatype (u) && (sRef_isAllocated (u->sref))));
5556}
5557
5558bool
5559uentry_isStateSpecial (uentry u)
5560{
5561 return ((uentry_isVariable (u)
5562 && (u->info->var->defstate == SS_SPECIAL))
5563 || (uentry_isValid (u) && sRef_isStateSpecial (u->sref)));
5564}
5565
5566exitkind uentry_getExitCode (uentry ue)
5567{
5568 if (uentry_isFunction (ue))
5569 {
5570 return ue->info->fcn->exitCode;
5571 }
5572 else
5573 {
5574 return XK_UNKNOWN;
5575 }
5576}
5577
28bf4b0b 5578qual uentry_nullPred (uentry u)
616915dd 5579{
5580 llassert (uentry_isRealFunction (u));
5581
5582 if (uentry_isFunction (u))
5583 {
5584 return (u->info->fcn->nullPred);
5585 }
5586 else
5587 {
28bf4b0b 5588 return qual_createUnknown ();
616915dd 5589 }
5590}
5591
28bf4b0b 5592/*
5593** Note for variables, this is checking the declared state, not the current state.
5594*/
5595
616915dd 5596bool
5597uentry_possiblyNull (uentry u)
5598{
5599 return ((uentry_isVariable (u) && (nstate_possiblyNull (u->info->var->nullstate)))
5600 || (uentry_isDatatype (u) && (sRef_possiblyNull (u->sref))));
5601}
5602
5603alkind
5604uentry_getAliasKind (uentry u)
5605{
5606 if (uentry_isValid (u))
5607 {
5608 return (sRef_getAliasKind (uentry_getSref (u)));
5609 }
5610 else
5611 {
5612 return AK_UNKNOWN;
5613 }
5614}
5615
5616exkind
5617uentry_getExpKind (uentry u)
5618{
5619 if (uentry_isValid (u))
5620 {
5621 return (sRef_getExKind (uentry_getSref (u)));
5622 }
5623 else
5624 {
5625 return XO_UNKNOWN;
5626 }
5627}
5628
5629bool
5630uentry_isIter (uentry e)
5631{
5632 return (!uentry_isUndefined (e) && e->ukind == KITER);
5633}
5634
5635bool
5636uentry_isEndIter (uentry e)
5637{
5638 return (!uentry_isUndefined (e) && e->ukind == KENDITER);
5639}
5640
5641bool
5642uentry_isRealFunction (uentry e)
5643{
5644 return (uentry_isFunction (e) ||
5645 (uentry_isVariable (e) && ctype_isFunction (uentry_getType (e))));
5646}
5647
5648bool
5649uentry_hasName (uentry e)
5650{
5651 if (uentry_isValid (e))
5652 {
5653 cstring s = e->uname;
5654
28bf4b0b 5655 return (!(cstring_isEmpty (s) || cstring_equalLit (s, "...")
5656 || uentry_isFakeTag (e)));
616915dd 5657 }
5658 else
5659 {
5660 return FALSE;
5661 }
5662}
5663
28bf4b0b 5664/*
5665** Returns true for fake tags.
5666** This is used for dumping the library
5667*/
5668
616915dd 5669bool uentry_hasRealName (uentry e)
5670{
28bf4b0b 5671 return (uentry_isValid (e)
5672 && cstring_isNonEmpty (e->uname)
5673 && !uentry_isGlobalMarker (e));
616915dd 5674}
5675
5676
5677/*@observer@*/ globSet
5678uentry_getGlobs (uentry l)
5679{
5680 if (uentry_isInvalid (l))
5681 {
5682 return globSet_undefined;
5683 }
5684
5685 if (l->ukind != KFCN)
5686 {
5687 if (l->ukind != KITER && l->ukind != KENDITER)
5688 {
5689 if (l->ukind == KVAR)
5690 {
5691 llbug (message ("Bad call to uentry_getGlobs (var): %q (%s)",
5692 uentry_unparse (l),
5693 ekind_unparse (l->ukind)));
5694 }
5695 else
5696 {
5697 llbug (message ("Bad call to uentry_getGlobs: %q (%s)",
5698 uentry_unparse (l),
5699 ekind_unparse (l->ukind)));
5700 }
5701 }
5702 return globSet_undefined;
5703 }
5704
5705 return l->info->fcn->globs;
5706}
5707
5708/*@observer@*/ sRefSet
5709uentry_getMods (uentry l)
5710{
5711 llassert (uentry_isValid (l));
5712
5713 if (l->ukind != KFCN && l->ukind != KITER && l->ukind != KENDITER)
5714 {
5715 llcontbug (message ("Bad call to uentry_getMods: %q", uentry_unparse (l)));
5716 return sRefSet_undefined;
5717 }
5718
5719 return l->info->fcn->mods;
5720}
5721
5722ekind
5723uentry_getKind (uentry e)
5724{
5725 llassert (uentry_isValid (e));
5726
5727 return (e->ukind);
5728}
5729
5730/*@observer@*/ multiVal uentry_getConstantValue (uentry e)
5731{
b9904f57 5732 llassert (uentry_isEitherConstant (e));
5733 return (sRef_getValue (e->sref));
616915dd 5734}
5735
5736/*@observer@*/ uentryList
5737uentry_getParams (uentry l)
5738{
5739 if (uentry_isInvalid (l)) return uentryList_undefined;
5740
5741 switch (l->ukind)
5742 {
5743 case KFCN:
5744 case KITER:
5745 {
5746 ctype ct = l->utype;
5747
5748 if (ctype_isFunction (ct))
5749 {
5750 return (ctype_argsFunction (ct));
5751 }
5752 else
5753 {
5754 return uentryList_undefined;
5755 }
5756 }
5757 case KVAR:
5758 {
5759 ctype ct = l->utype;
5760
5761 llassert (ctype_isFunction (ct));
5762 return (ctype_argsFunction (ct));
5763 }
5764 BADDEFAULT;
5765 }
5766 BADEXIT;
5767}
5768
5769/*@observer@*/ cstring
5770uentry_rawName (uentry e)
5771{
5772 if (uentry_isValid (e))
5773 {
5774 return (e->uname);
5775 }
5776 else
5777 {
5778 return cstring_undefined;
5779 }
5780}
5781
5782static cstring
5783uentry_getOptName (uentry e)
5784{
5785 cstring s = uentry_getName (e);
5786
5787 if (cstring_isDefined (s))
5788 {
5789 s = cstring_appendChar (s, ' ');
5790 }
5791
5792 return s;
5793}
5794
5795/*@only@*/ cstring
5796uentry_getName (uentry e)
5797{
5798 cstring ret = cstring_undefined;
5799
5800 if (uentry_isValid (e))
5801 {
616915dd 5802 if (uentry_isAnyTag (e))
5803 {
28bf4b0b 5804 ret = fixTagName (e->uname);
616915dd 5805 }
5806 else if (uentry_isAnyParam (e))
5807 {
5808 ret = cstring_copy (fixParamName (e->uname));
5809 }
5810 else
5811 {
5812 ret = cstring_copy (e->uname);
5813 }
5814 }
5815
5816 return ret;
5817}
5818
28bf4b0b 5819cstring uentry_observeRealName (uentry e)
5820{
5821 cstring ret = cstring_undefined;
5822
5823 if (uentry_isValid (e))
5824 {
5825 if (uentry_isAnyTag (e))
5826 {
5827 if (isFakeTag (e->uname))
5828 {
5829 ret = cstring_undefined;
5830 }
5831 else
5832 {
5833 ret = plainTagName (e->uname);
5834 }
5835 }
5836 else if (uentry_isAnyParam (e))
5837 {
5838 ret = fixParamName (e->uname);
5839 }
5840 else
5841 {
5842 ret = e->uname;
5843 }
5844 }
5845
5846 return ret;
5847}
5848
616915dd 5849cstring uentry_getRealName (uentry e)
5850{
5851 if (uentry_isValid (e))
5852 {
5853 if (uentry_isAnyTag (e))
5854 {
5855 return (cstring_undefined);
5856 }
5857 else
5858 {
5859 return (e->uname);
5860 }
5861 }
5862 return cstring_undefined;
5863}
5864
5865ctype uentry_getType (uentry e)
5866{
5867 if (uentry_isValid (e))
5868 {
5869 return e->utype;
5870 }
5871 else
5872 {
5873 return ctype_unknown;
5874 }
5875}
5876
5877fileloc uentry_whereLast (uentry e)
5878{
5879 fileloc loc;
5880
5881 if (uentry_isInvalid (e))
5882 {
5883 return fileloc_undefined;
5884 }
5885
5886 loc = e->whereDefined;
5887
5888 if (fileloc_isValid (loc) && !fileloc_isExternal (loc))
5889 {
5890 return loc;
5891 }
5892
5893 loc = uentry_whereDeclared (e);
5894
5895 if (fileloc_isValid (loc) && !fileloc_isExternal (loc))
5896 {
5897 return loc;
5898 }
5899
5900 loc = uentry_whereSpecified (e);
5901 return loc;
5902}
5903
5904fileloc uentry_whereEither (uentry e)
5905{
5906 if (uentry_isInvalid (e)) return fileloc_undefined;
5907
5908 if (fileloc_isDefined (e->whereDefined)
5909 && !fileloc_isExternal (e->whereDefined))
5910 {
5911 return e->whereDefined;
5912 }
5913 else if (fileloc_isDefined (e->whereDeclared))
5914 {
5915 return e->whereDeclared;
5916 }
5917 else
5918 {
5919 return e->whereSpecified;
5920 }
5921}
5922
5923fileloc uentry_whereSpecified (uentry e)
5924{
5925 if (uentry_isInvalid (e)) return fileloc_undefined;
5926
5927 return (e->whereSpecified);
5928}
5929
5930fileloc uentry_whereDefined (uentry e)
5931{
5932 if (uentry_isInvalid (e)) return fileloc_undefined;
5933
5934 return (e->whereDefined);
5935}
5936
5937fileloc uentry_whereDeclared (uentry e)
5938{
5939 if (uentry_isInvalid (e)) return fileloc_undefined;
5940
5941 return (e->whereDeclared);
5942}
5943
5944/*@observer@*/ fileloc
5945uentry_whereEarliest (uentry e)
5946{
5947 if (uentry_isInvalid (e)) return fileloc_undefined;
5948
5949 if (fileloc_isDefined (e->whereSpecified))
5950 {
5951 return (e->whereSpecified);
5952 }
5953 else if (fileloc_isDefined (e->whereDeclared))
5954 {
5955 return (e->whereDeclared);
5956 }
5957 else
5958 {
5959 return e->whereDefined;
5960 }
5961}
5962
5963void
5964uentry_setFunctionDefined (uentry e, fileloc loc)
5965{
5966 if (uentry_isValid (e))
5967 {
5968 llassert (uentry_isFunction (e));
5969
5970 if (fileloc_isUndefined (e->whereDeclared))
5971 {
5972 e->whereDeclared = fileloc_update (e->whereDeclared, loc);
5973 }
5974
5975 if (!fileloc_isDefined (e->whereDefined))
5976 {
5977 e->whereDefined = fileloc_update (e->whereDefined, loc);
5978 }
5979 }
5980}
5981
5982void
5983uentry_setDeclDef (uentry e, fileloc f)
5984{
5985 uentry_setDeclared (e, f);
5986
5987 if (!uentry_isFunction (e)
5988 && !(uentry_isVariable (e) && uentry_isExtern (e)))
5989 {
5990 uentry_setDefined (e, f);
5991 }
5992}
5993
5994void
5995uentry_setDeclaredForce (uentry e, fileloc f)
5996{
5997 llassert (uentry_isValid (e));
5998 e->whereDeclared = fileloc_update (e->whereDeclared, f);
5999}
6000
6001void
6002uentry_setDeclaredForceOnly (uentry e, fileloc f)
6003{
6004 llassert (uentry_isValid (e));
6005 fileloc_free (e->whereDeclared);
6006 e->whereDeclared = f;
6007}
6008
6009void
6010uentry_setDeclaredOnly (uentry e, /*@only@*/ fileloc f)
6011{
6012 fileloc oldloc;
6013
6014 llassert (uentry_isValid (e));
6015 oldloc = e->whereDeclared;
6016
6017 if (fileloc_isDefined (oldloc))
6018 {
6019 if (fileloc_isLib (oldloc) || fileloc_isImport (oldloc))
6020 {
6021 e->whereDeclared = f;
6022 fileloc_free (oldloc);
6023 }
6024 else
6025 {
6026 fileloc_free (f);
6027 }
6028 }
6029 else
6030 {
6031 e->whereDeclared = f;
6032 fileloc_free (oldloc);
6033 }
6034}
6035
6036void
6037uentry_setDeclared (uentry e, fileloc f)
6038{
6039 fileloc oldloc;
6040
6041 llassert (uentry_isValid (e));
6042 oldloc = e->whereDeclared;
6043
6044 if (fileloc_isDefined (oldloc))
6045 {
6046 if (fileloc_isLib (oldloc) || fileloc_isImport (oldloc))
6047 {
6048 e->whereDeclared = fileloc_update (e->whereDeclared, f);
6049 }
6050 else
6051 {
6052 ;
6053 }
6054 }
6055 else
6056 {
6057 e->whereDeclared = fileloc_update (e->whereDeclared, f);
6058 }
6059}
6060
6061void
6062uentry_clearDefined (uentry e)
6063{
6064 if (uentry_isValid (e))
6065 {
6066 e->whereDefined = fileloc_update (e->whereDefined, fileloc_undefined);
6067 }
6068}
6069
6070void
6071uentry_setDefined (uentry e, fileloc f)
6072{
6073 fileloc oldloc;
6074
6075 llassert (uentry_isValid (e));
6076 oldloc = e->whereDefined;
6077
6078 if (fileloc_isDefined (oldloc))
6079 {
6080 if (fileloc_isLib (oldloc)
6081 || fileloc_isImport (oldloc)
6082 || fileloc_isBuiltin (oldloc)
6083 || fileloc_isPreproc (oldloc))
6084 {
6085 e->whereDefined = fileloc_update (e->whereDefined, f);
6086 }
6087 else
6088 {
6089 if (fileloc_equal (oldloc, f) || context_processingMacros ())
6090 {
6091 ; /* okay */
6092 }
6093 else
6094 {
6095 if (optgenerror (FLG_REDEF,
6096 message ("%s %q redefined",
6097 ekind_capName (e->ukind),
6098 uentry_getName (e)),
6099 f))
6100 {
6101 llgenindentmsg (message ("Previous definition of %q",
6102 uentry_getName (e)),
6103 e->whereDefined);
6104 }
6105 }
6106 }
6107 }
6108 else
6109 {
6110 e->whereDefined = fileloc_update (e->whereDefined, f);
6111 }
6112}
6113
6114bool
6115uentry_isCodeDefined (uentry e)
6116{
efd360a3 6117 llassert (uentry_isValid (e));
6118
6119 return (fileloc_isDefined (e->whereDefined));
616915dd 6120}
6121
6122bool
6123uentry_isDeclared (uentry e)
6124{
6125 if (uentry_isValid (e))
6126 {
6127 return (fileloc_isDefined (e->whereDeclared));
6128 }
6129
6130 return FALSE;
6131}
6132
6133sRef uentry_getSref (uentry e)
6134{
6135 /* not true, used for functions too (but shouldn't be? */
6136 /* llassertprint (e->ukind == KVAR, ("uentry_getSref: not variable!")); */
6137
6138 if (uentry_isInvalid (e)) return sRef_undefined;
6139
6140 return (e->sref);
6141}
6142
6143sRef uentry_getOrigSref (uentry e)
6144{
6145 if (uentry_isValid (e))
6146 {
6147 sRef sr = sRef_copy (uentry_getSref (e));
6148
6149 sRef_resetState (sr);
6150 sRef_clearDerived (sr);
6151
6152 if (uentry_isVariable (e))
6153 {
6154 sRef_setDefState (sr, e->info->var->defstate, fileloc_undefined);
6155 sRef_setNullState (sr, e->info->var->nullstate, fileloc_undefined);
6156 }
6157
6158 return (sr);
6159 }
6160 else
6161 {
6162 return sRef_undefined;
6163 }
6164}
6165
6166/*
6167** requires: uentry e is not in a hashed symbol table
6168*/
6169
6170void
6171uentry_setName (uentry e, /*@only@*/ cstring n)
6172{
6173 llassert (uentry_isValid (e));
6174
6175 cstring_free (e->uname);
6176 e->uname = n;
6177}
6178
6179void
6180uentry_setType (uentry e, ctype t)
6181{
6182 if (uentry_isValid (e))
6183 {
6184 e->utype = t;
6185 sRef_setType (e->sref, t);
6186 }
6187}
6188
6189void
6190uentry_resetParams (uentry ue, /*@only@*/ uentryList pn)
6191{
6192 ctype rct;
6193 ctype rettype = ctype_unknown;
6194
6195 llassert (uentry_isValid (ue));
6196
efd360a3 6197 uentry_convertVarFunction (ue);
616915dd 6198 llassert (uentry_isFunction (ue));
6199
efd360a3 6200 rct = ctype_realType (ue->utype);
6201
616915dd 6202 if (ctype_isFunction (rct))
6203 {
28bf4b0b 6204 rettype = ctype_getReturnType (rct);
616915dd 6205 }
6206
6207 ue->utype = ctype_makeNFParamsFunction (rettype, pn);
6208}
6209
6210void
6211uentry_setRefParam (uentry e)
6212{
616915dd 6213 if (!uentry_isVar (e))
6214 {
6215 llbug (message ("uentry_setParam: not variable: %q", uentry_unparse (e)));
6216 }
6217 else
6218 {
6219 if (e->info->var->kind == VKSEFPARAM)
6220 {
6221 e->info->var->kind = VKREFSEFPARAM;
6222 }
6223 else if (e->info->var->kind == VKSEFRETPARAM)
6224 {
6225 e->info->var->kind = VKREFSEFRETPARAM;
6226 }
6227 else if (e->info->var->kind == VKYIELDPARAM)
6228 {
6229 e->info->var->kind = VKREFYIELDPARAM;
6230 }
6231 else
6232 {
6233 e->info->var->kind = VKREFPARAM;
6234 }
6235 }
6236}
6237
6238void
6239uentry_setParam (uentry e)
6240{
6241 if (!uentry_isVar (e))
6242 {
6243 if (uentry_isElipsisMarker (e))
6244 {
6245
6246 }
6247 else
6248 {
6249 llbug (message ("uentry_setParam: not variable: %q", uentry_unparse (e)));
6250 }
6251 }
6252 else
6253 {
6254 cstring oldname;
6255
6256 if (e->info->var->kind == VKYIELDPARAM
6257 || e->info->var->kind == VKSEFPARAM
6258 || e->info->var->kind == VKSEFRETPARAM)
6259 {
6260 ;
6261 }
6262 else
6263 {
6264 e->info->var->kind = VKPARAM;
6265 }
6266
6267 oldname = e->uname;
6268 e->uname = makeParam (e->uname);
6269 cstring_free (oldname);
6270 }
6271}
6272
6273void
6274uentry_setSref (uentry e, sRef s)
6275{
6276 if (uentry_isValid (e))
6277 {
6278 if (sRef_isValid (e->sref))
6279 {
6280 sRef_mergeStateQuietReverse (e->sref, s);
6281 }
6282 else
6283 {
6284 e->sref = sRef_saveCopy (s);
6285 }
6286 }
6287}
6288
6289ctype
6290uentry_getAbstractType (uentry e)
6291{
6292 llassert (uentry_isDatatype (e));
6293
6294 /*
6295 ** This assertion removed.
6296 ** Okay to have undefined type, for system types
6297
6298 llassertprintret (!ctype_isUndefined (e->info->datatype->type),
6299 ("uentry_getAbstractType %q: undefined", uentry_unparseFull (e)),
6300 e->utype);
6301
6302 */
6303
6304 if (ctype_isUndefined (e->info->datatype->type))
6305 {
6306 return ctype_unknown;
6307 }
6308
6309 /*
6310 ** Sadly, a kludge...
6311 */
6312
6313 if (ctype_isUserBool (e->info->datatype->type)) {
6314 return ctype_bool;
6315 }
6316
6317 return e->info->datatype->type;
6318}
6319
6320ctype uentry_getRealType (uentry e)
6321{
6322 ctype ct;
6323 typeId uid = USYMIDINVALID;
6324
6325 if (uentry_isInvalid (e))
6326 {
6327 return ctype_unknown;
6328 }
6329
6330 llassertprint (uentry_isDatatype (e), ("not datatype: %s", uentry_unparse (e)));
6331
6332 if (uentry_isAnyTag (e))
6333 {
6334 return (e->utype);
6335 }
6336
6337 if (uentry_isAbstractType (e))
6338 {
6339 ct = uentry_getAbstractType (e);
6340
6341 if (ctype_isManifestBool (ct)) {
6342 return ct;
6343 }
6344
6345 llassert (ctype_isUA (ct));
6346
6347 uid = ctype_typeId (ct);
6348
6349 if (!context_hasAccess (uid))
6350 {
6351 return (ct);
6352 }
6353 }
6354
6355 ct = uentry_getType (e);
6356
6357 /* if (ctype_isUserBool (ct)) return ct; */
6358
6359 if (ctype_isManifestBool (ct)) {
6360 return ctype_bool;
6361 }
6362
6363 if (ctype_isUA (ct))
6364 {
6365 usymId iid = ctype_typeId (ct);
6366
28bf4b0b 6367 if (usymId_equal (iid, uid))
616915dd 6368 {
6369 llcontbug (message ("uentry_getRealType: recursive type! %s",
6370 ctype_unparse (ct)));
6371 return ct;
6372 }
6373 else
6374 {
6375 /* evs 2000-07-25: possible infinite recursion ? */
6376 uentry ue2 = usymtab_getTypeEntry (iid);
28bf4b0b 6377
6378 if (ue2 == e)
6379 {
6380 llcontbug (message ("Bad recursion: %q", uentry_unparseFull (e)));
6381 return ctype_unknown;
6382 }
616915dd 6383
6384 return uentry_getRealType (ue2);
6385 }
6386 }
6387 else
6388 {
6389 return ct;
6390 }
6391}
6392
6393ctype uentry_getForceRealType (uentry e)
6394{
6395 ctype ct;
6396 typeId uid = USYMIDINVALID;
6397
6398 if (uentry_isInvalid (e))
6399 {
6400 return ctype_unknown;
6401 }
6402
6403 llassertprint (uentry_isDatatype (e), ("not datatype: %s", uentry_unparse (e)));
6404
6405 if (uentry_isAnyTag (e))
6406 {
6407 return (e->utype);
6408 }
6409
6410 if (uentry_isAbstractType (e))
6411 {
6412 ct = uentry_getAbstractType (e);
6413 llassert (ctype_isUA (ct));
6414
6415 uid = ctype_typeId (ct);
6416 /* no check for access! */
6417 }
6418
6419 ct = uentry_getType (e);
6420
6421 /* evs 2000-07-25 */
6422 /* if (ctype_isUserBool (ct)) return ct; */
6423
6424 if (ctype_isManifestBool (ct)) {
6425 return ctype_bool;
6426 }
6427
6428 if (ctype_isUA (ct))
6429 {
6430 usymId iid = ctype_typeId (ct);
6431
28bf4b0b 6432 if (usymId_equal (iid, uid))
616915dd 6433 {
6434 llcontbug (message ("uentry_getRealType: recursive type! %s",
6435 ctype_unparse (ct)));
6436 return ct;
6437 }
6438 else
6439 {
6440 return uentry_getForceRealType (usymtab_getTypeEntry (iid));
6441 }
6442 }
6443 else
6444 {
6445 return ct;
6446 }
6447}
6448
6449uentry uentry_nameCopy (cstring name, uentry e)
6450{
6451 uentry enew = uentry_alloc ();
6452
6453 llassert (uentry_isValid (e));
6454
6455 /* enew->shallowCopy = FALSE; */
6456 enew->ukind = e->ukind;
6457 enew->uname = name;
6458 enew->utype = e->utype;
6459 enew->whereSpecified = fileloc_copy (e->whereSpecified);
6460 enew->whereDefined = fileloc_copy (e->whereDefined);
6461 enew->whereDeclared = fileloc_copy (e->whereDeclared);
6462 enew->sref = sRef_copy (e->sref);
6463 enew->used = e->used;
6464 enew->lset = FALSE;
6465 enew->isPrivate = e->isPrivate;
6466 enew->hasNameError = FALSE;
6467
6468 enew->uses = filelocList_new ();
28bf4b0b 6469 enew->warn = warnClause_undefined;
616915dd 6470
6471 enew->storageclass = e->storageclass;
6472 enew->info = uinfo_copy (e->info, e->ukind);
6473
6474 return enew;
6475}
6476
6477void
6478uentry_setDatatype (uentry e, usymId uid)
6479{
6480 llassert (uentry_isDatatype (e));
6481
6482 if (uentry_isAbstractType (e))
6483 {
6484 e->info->datatype->type = ctype_createAbstract (uid);
6485 }
6486 else
6487 {
6488 e->info->datatype->type = ctype_createUser (uid);
6489 }
6490}
6491
6492static void
6493uentry_setSpecDef (/*@special@*/ uentry e, /*@keep@*/ fileloc f)
6494 /*@defines e->whereSpecified, e->whereDeclared, e->whereDefined@*/
6495 /*@modifies e@*/
6496{
6497 llassert (uentry_isValid (e));
6498
6499 if (fileloc_isSpec (f) || fileloc_isImport (f))
6500 {
6501 e->whereSpecified = f;
6502 e->whereDeclared = fileloc_undefined;
6503 e->whereDefined = fileloc_undefined;
6504 }
6505 else
6506 {
6507 e->whereSpecified = fileloc_undefined;
6508 e->whereDeclared = f;
6509 e->whereDefined = fileloc_undefined;
6510 }
7ebcc5bb 6511
6512 llassert (fileloc_storable (f));
616915dd 6513}
6514
6515static void
6516ucinfo_free (/*@only@*/ ucinfo u)
6517{
616915dd 6518 sfree (u);
6519}
6520
6521static void
6522uvinfo_free (/*@only@*/ uvinfo u)
6523{
28bf4b0b 6524 /*drl7x added 6/29/01 */
b072092f 6525 free (u->bufinfo); /* evans - 2001-07-19 fixed this bug */
616915dd 6526 sfree (u);
6527}
6528
6529static void
6530udinfo_free (/*@only@*/ udinfo u)
6531{
6532 sfree (u);
6533}
6534
6535static void
6536ufinfo_free (/*@only@*/ ufinfo u)
6537{
6538 globSet_free (u->globs);
6539 sRefSet_free (u->mods);
28bf4b0b 6540 stateClauseList_free (u->specclauses);
616915dd 6541 sfree (u);
6542}
6543
6544static void
6545uiinfo_free (/*@only@*/ uiinfo u)
6546{
6547 sfree (u);
6548}
6549
6550static void
6551ueinfo_free (/*@only@*/ ueinfo u)
6552{
6553 sfree (u);
6554}
6555
6556static /*@only@*/ ucinfo
6557ucinfo_copy (ucinfo u)
6558{
6559 ucinfo ret = (ucinfo) dmalloc (sizeof (*ret));
616915dd 6560 ret->access = u->access;
616915dd 6561 return ret;
6562}
6563
6564static /*@only@*/ uvinfo
6565uvinfo_copy (uvinfo u)
6566{
6567 uvinfo ret = (uvinfo) dmalloc (sizeof (*ret));
6568
6569 ret->kind = u->kind;
6570 ret->nullstate = u->nullstate;
6571 ret->defstate = u->defstate;
6572 ret->checked = u->checked;
28bf4b0b 6573
6574 /* drl added 07-02-001 */
6575 /* copy null terminated information */
6576
6577 if (u->bufinfo != NULL)
6578 {
6579 ret->bufinfo = (bbufinfo) dmalloc (sizeof( * u->bufinfo ) );
6580 ret->bufinfo->bufstate = u->bufinfo->bufstate;
6581 ret->bufinfo->size = u->bufinfo->size;
6582 ret->bufinfo->len = u->bufinfo->len;
6583 return ret;
6584 }
6585 else
6586 {
6587 ret->bufinfo = NULL;
6588 return ret;
6589 }
6590
616915dd 6591}
6592
6593static /*@only@*/ udinfo
6594udinfo_copy (udinfo u)
6595{
6596 udinfo ret = (udinfo) dmalloc (sizeof (*ret));
6597
6598 ret->abs = u->abs;
6599 ret->mut = u->mut;
6600 ret->type = u->type;
6601
6602 return ret;
6603}
6604
6605static /*@only@*/ ufinfo
6606ufinfo_copy (ufinfo u)
6607{
6608 ufinfo ret = (ufinfo) dmalloc (sizeof (*ret));
6609
6610 ret->hasGlobs = u->hasGlobs;
6611 ret->hasMods = u->hasMods;
6612 ret->exitCode = u->exitCode;
6613 ret->specialCode = u->specialCode;
6614 ret->nullPred = u->nullPred;
6615 ret->access = u->access;
6616 ret->globs = globSet_newCopy (u->globs);
6617 ret->mods = sRefSet_newCopy (u->mods);
6618 ret->defparams = u->defparams;
28bf4b0b 6619 ret->specclauses = stateClauseList_copy (u->specclauses);
616915dd 6620
3814599d 6621 ret->preconditions = functionConstraint_copy (u->preconditions);
6622 ret->postconditions = functionConstraint_copy (u->postconditions);
616915dd 6623
6624 return ret;
6625}
6626
6627static /*@only@*/ uiinfo
6628uiinfo_copy (uiinfo u)
6629{
6630 uiinfo ret = (uiinfo) dmalloc (sizeof (*ret));
6631
6632 ret->access = u->access;
6633 ret->globs = globSet_newCopy (u->globs);
6634 ret->mods = sRefSet_newCopy (u->mods);
6635
6636 return (ret);
6637}
6638
6639static /*@only@*/ ueinfo
6640ueinfo_copy (ueinfo u)
6641{
6642 ueinfo ret = (ueinfo) dmalloc (sizeof (*ret));
6643
6644 ret->access = u->access;
6645 return ret;
6646}
6647
6648static void
6649uinfo_free (uinfo u, ekind kind)
6650{
6651 switch (kind)
6652 {
6653 case KENUMCONST:
6654 case KCONST: ucinfo_free (u->uconst); break;
6655 case KVAR: uvinfo_free (u->var); break;
6656 case KSTRUCTTAG:
6657 case KUNIONTAG:
6658 case KENUMTAG:
6659 case KDATATYPE: udinfo_free (u->datatype); break;
6660 case KFCN: ufinfo_free (u->fcn); break;
6661 case KITER: uiinfo_free (u->iter); break;
6662 case KENDITER: ueinfo_free (u->enditer); break;
6663 case KELIPSMARKER: break;
6664 case KINVALID: break;
6665 }
6666
6667 sfree (u);
6668}
6669
6670static /*@only@*/ /*@null@*/ uinfo
6671uinfo_copy (uinfo u, ekind kind)
6672{
6673 if (kind == KELIPSMARKER || kind == KINVALID)
6674 {
6675 return NULL;
6676 }
6677 else
6678 {
6679 uinfo ret = (uinfo) dmalloc (sizeof (*ret));
6680
6681 switch (kind)
6682 {
6683 case KENUMCONST:
6684 case KCONST: ret->uconst = ucinfo_copy (u->uconst); break;
6685 case KVAR: ret->var = uvinfo_copy (u->var); break;
6686 case KSTRUCTTAG:
6687 case KUNIONTAG:
6688 case KENUMTAG:
6689 case KDATATYPE: ret->datatype = udinfo_copy (u->datatype); break;
6690 case KFCN: ret->fcn = ufinfo_copy (u->fcn); break;
6691 case KITER: ret->iter = uiinfo_copy (u->iter); break;
6692 case KENDITER: ret->enditer = ueinfo_copy (u->enditer); break;
6693 BADDEFAULT;
6694 }
6695 return ret;
6696 }
6697}
6698
6699static void
6700uentry_reallyFree (/*@notnull@*/ /*@only@*/ uentry e)
6701{
6702 filelocList_free (e->uses);
6703 cstring_free (e->uname);
6704
6705 uinfo_free (e->info, e->ukind);
6706
6707 fileloc_free (e->whereSpecified);
6708 fileloc_free (e->whereDefined);
6709 fileloc_free (e->whereDeclared);
6710
28bf4b0b 6711 warnClause_free (e->warn);
6712
616915dd 6713 nuentries--;
6714 sfree (e);
6715 }
6716
6717extern void uentry_markOwned (/*@owned@*/ uentry u)
6718{
6719 sfreeEventually (u);
6720}
6721
6722void
6723uentry_free (/*@only@*/ uentry e)
6724{
6725 if (uentry_isValid (e) && !uentry_isElipsisMarker (e))
6726 {
6727 uentry_reallyFree (e);
6728 }
6729}
6730
6731/*
6732** For uentry's in the global or file scope
6733*/
6734
6735void
6736uentry_freeComplete (/*@only@*/ uentry e)
6737{
6738 if (uentry_isValid (e) && !uentry_isElipsisMarker (e))
6739 {
28bf4b0b 6740 DPRINTF (("Free complete: %s", sRef_unparseFull (e->sref)));
616915dd 6741 /*@i@*/ sRef_free (e->sref);
6742 e->sref = sRef_undefined;
6743 uentry_reallyFree (e);
6744 }
6745}
6746
6747/*
6748** requires old->kind != new->kind, old->uname = new->uname
6749*/
6750
6751static void
6752KindConformanceError (/*@unique@*/ uentry old, uentry unew, bool mustConform)
6753{
6754 llassert (uentry_isValid (old));
6755 llassert (uentry_isValid (unew));
6756
6757 if (uentry_isEitherConstant (unew)
6758 && (fileloc_isPreproc (uentry_whereDeclared (old))
6759 || ctype_isUnknown (old->utype))
6760 && !uentry_isSpecified (old))
6761 {
6762 ; /* no error */
6763 }
6764 else
6765 {
6766 if (mustConform)
6767 {
6768 if (!uentry_isDeclared (old))
6769 {
6770 if (uentry_isSpecified (old))
6771 {
6772 if (uentry_isSpecified (unew))
6773 {
6774 llbuglit ("Respecification!");
6775 }
6776 else if (uentry_isDeclared (unew))
6777 {
6778 if (optgenerror
6779 (FLG_INCONDEFS,
6780 message ("%s %q inconsistently declared as %s: %t",
6781 ekind_capName (old->ukind),
6782 uentry_getName (unew),
6783 ekind_unparseLong (unew->ukind),
6784 unew->utype),
6785 uentry_whereDeclared (unew)))
6786 {
6787 uentry_showWhereLast (old);
6788 }
6789 }
6790 else
6791 {
6792 BADEXIT;
6793 }
6794 }
6795 else
6796 {
6797 if (optgenerror
6798 (FLG_INCONDEFS,
6799 message ("%s %q inconsistently declared as %s: %t",
6800 ekind_capName (old->ukind),
6801 uentry_getName (unew),
6802 ekind_unparseLong (unew->ukind),
6803 unew->utype),
6804 uentry_whereDeclared (unew)))
6805 {
6806 uentry_showWhereLast (old);
6807 }
6808 }
6809 }
6810 else
6811 {
6812 llassert (uentry_isDeclared (unew));
6813
6814 if (optgenerror
6815 (FLG_INCONDEFS,
6816 message ("%s %q inconsistently redeclared as %s",
6817 ekind_capName (old->ukind),
6818 uentry_getName (unew),
6819 ekind_unparseLong (unew->ukind)),
6820 uentry_whereDeclared (unew)))
6821 {
6822 uentry_showWhereLast (old);
6823 }
6824 }
6825 }
6826 }
6827
efd360a3 6828 uentry_updateInto (old, unew);
616915dd 6829}
6830
6831/*
6832** def is the definition of spec, modifies spec
6833**
6834** reports any inconsistencies
6835** returns the summary of all available information
6836** if spec and def are inconsistent, def is returned
6837*/
6838
6839void
6840uentry_showWhereLast (uentry spec)
6841{
6842 if (uentry_isValid (spec))
6843 {
6844 if (fileloc_isDefined (spec->whereDefined)
6845 && !fileloc_isLib (spec->whereDefined)
6846 && !fileloc_isPreproc (spec->whereDefined))
6847 {
6848 llgenindentmsg (message ("Previous definition of %q: %t",
6849 uentry_getName (spec),
6850 uentry_getType (spec)),
6851 uentry_whereDefined (spec));
6852 }
6853 else if (uentry_isDeclared (spec))
6854 {
6855 llgenindentmsg (message ("Previous declaration of %q: %t",
6856 uentry_getName (spec),
6857 uentry_getType (spec)),
6858 uentry_whereDeclared (spec));
6859 }
6860 else if (uentry_isSpecified (spec))
6861 {
6862 if (uentry_hasName (spec))
6863 {
6864 llgenindentmsg (message ("Specification of %q: %t",
6865 uentry_getName (spec),
6866 uentry_getType (spec)),
6867 uentry_whereSpecified (spec));
6868 }
6869 else
6870 {
6871 llgenindentmsg (message ("Specification: %t", uentry_getType (spec)),
6872 uentry_whereSpecified (spec));
6873 }
6874 }
6875 else
6876 {
6877 /* nothing to show */
6878 }
6879 }
6880}
6881
6882void
6883uentry_showDefSpecInfo (uentry ce, fileloc fwhere)
6884{
6885 fileloc loc = uentry_whereDefined (ce);
6886
6887 if (fileloc_isUser (loc) && !fileloc_equal (loc, fwhere))
6888 {
6889 llgenindentmsg (message ("Definition of %q", uentry_getName (ce)),
6890 loc);
6891 }
6892
6893 loc = uentry_whereSpecified (ce);
6894
6895 if (fileloc_isUser (loc) && !fileloc_equal (loc, fwhere))
6896 {
6897 llgenindentmsg (message ("Specification of %q", uentry_getName (ce)),
6898 loc);
6899 }
6900}
6901
6902void uentry_showWhereLastExtra (uentry spec, cstring extra)
6903{
6904 if (uentry_isDeclared (spec))
6905 {
6906 llgenindentmsg (message ("Previous declaration of %q: %q",
6907 uentry_getName (spec), extra),
6908 uentry_whereDeclared (spec));
6909 }
6910 else if (uentry_isSpecified (spec))
6911 {
6912 llgenindentmsg (message ("Specification of %q: %q",
6913 uentry_getName (spec), extra),
6914 uentry_whereSpecified (spec));
6915 }
6916 else
6917 {
6918 cstring_free (extra);
6919 }
6920}
6921
6922void
6923uentry_showWhereDeclared (uentry spec)
6924{
6925 if (uentry_isDeclared (spec))
6926 {
6927 if (uentry_hasName (spec))
6928 {
6929 llgenindentmsg (message ("Declaration of %q", uentry_getName (spec)),
6930 uentry_whereDeclared (spec));
6931 }
6932 else
6933 {
6934 llgenindentmsg (cstring_makeLiteral ("Declaration"), uentry_whereDeclared (spec));
6935 }
6936 }
6937 else if (uentry_isSpecified (spec))
6938 {
6939 if (uentry_hasName (spec))
6940 {
6941 llgenindentmsg (message ("Specification of %q", uentry_getName (spec)),
6942 uentry_whereSpecified (spec));
6943 }
6944 else
6945 {
6946 llgenindentmsg (cstring_makeLiteral ("Specification"), uentry_whereSpecified (spec));
6947 }
6948 }
6949 else
6950 {
6951 /* nothing to show */
6952 }
6953
6954}
6955
6956void
6957uentry_showWhereAny (uentry spec)
6958{
6959 if (uentry_isDeclared (spec))
6960 {
6961 if (uentry_hasName (spec))
6962 {
6963 llgenindentmsg (message ("Declaration of %q", uentry_getName (spec)),
6964 uentry_whereDeclared (spec));
6965 }
6966 else
6967 {
6968 llgenindentmsg (cstring_makeLiteral ("Declaration"), uentry_whereDeclared (spec));
6969 }
6970 }
6971 else if (uentry_isSpecified (spec))
6972 {
6973 if (uentry_hasName (spec))
6974 {
6975 llgenindentmsg (message ("Specification of %q",
6976 uentry_getName (spec)),
6977 uentry_whereSpecified (spec));
6978 }
6979 else
6980 {
6981 llgenindentmsg (cstring_makeLiteral ("Specification"),
6982 uentry_whereSpecified (spec));
6983 }
6984 }
6985 else if (fileloc_isDefined (uentry_whereDefined (spec)))
6986 {
6987 if (uentry_hasName (spec))
6988 {
6989 llgenindentmsg (message ("Definition of %q", uentry_getName (spec)),
6990 uentry_whereDefined (spec));
6991 }
6992 else
6993 {
6994 llgenindentmsg (cstring_makeLiteral ("Definition"), uentry_whereDefined (spec));
6995 }
6996 }
6997 else
6998 {
6999 /* nothing to show */
7000 }
7001}
7002
7003void
7004uentry_showWhereDefined (uentry spec)
7005{
7006 if (uentry_isCodeDefined (spec))
7007 {
7008 llgenindentmsg (message ("Previous definition of %q", uentry_getName (spec)),
7009 uentry_whereDefined (spec));
7010 }
7011}
7012
7013void
7014uentry_showWhereLastPlain (uentry spec)
7015{
7016 if (uentry_isDeclared (spec))
7017 {
7018 llgenindentmsg (message ("Previous declaration of %q", uentry_getName (spec)),
7019 uentry_whereDeclared (spec));
7020 }
7021 else if (uentry_isSpecified (spec))
7022 {
7023 llgenindentmsg (message ("Specification of %q", uentry_getName (spec)),
7024 uentry_whereSpecified (spec));
7025 }
7026 else
7027 {
7028 }
7029}
7030
7031static void
7032uentry_showWhereLastVal (uentry spec, cstring val)
7033{
7034 if (uentry_isDeclared (spec))
7035 {
7036 llgenindentmsg (message ("Previous declaration of %q: %s",
7037 uentry_getName (spec), val),
7038 uentry_whereDeclared (spec));
7039 }
7040 else if (uentry_isSpecified (spec))
7041 {
7042 llgenindentmsg (message ("Specification of %q: %s",
7043 uentry_getName (spec), val),
7044 uentry_whereSpecified (spec));
7045 }
7046 else
7047 {
7048 }
7049}
7050
7051void
7052uentry_showWhereSpecified (uentry spec)
7053{
7054 if (uentry_isSpecified (spec))
7055 {
7056 if (uentry_hasName (spec))
7057 {
7058 llgenindentmsg (message ("Specification of %q", uentry_getName (spec)),
7059 uentry_whereSpecified (spec));
7060 }
7061 else
7062 {
7063 llgenindentmsg (cstring_makeLiteral ("Specification"),
7064 uentry_whereSpecified (spec));
7065 }
7066 }
7067 else if (uentry_isDeclared (spec))
7068 {
7069 llgenindentmsg (message ("Declaration of %q", uentry_getName (spec)),
7070 uentry_whereDeclared (spec));
7071 }
7072 else
7073 {
7074 /* nothing to show */
7075 }
7076}
7077
7078void
7079uentry_showWhereSpecifiedExtra (uentry spec, cstring s)
7080{
7081 if (uentry_isSpecified (spec))
7082 {
7083 if (uentry_hasName (spec))
7084 {
7085 llgenindentmsg (message ("Specification of %q: %q",
7086 uentry_getName (spec), s),
7087 uentry_whereSpecified (spec));
7088 }
7089 else
7090 {
7091 llgenindentmsg (message ("Specification: %q", s),
7092 uentry_whereSpecified (spec));
7093 }
7094 }
7095 else if (uentry_isDeclared (spec))
7096 {
7097 llgenindentmsg (message ("Declaration of %q: %q",
7098 uentry_getName (spec), s),
7099 uentry_whereDeclared (spec));
7100 }
7101 else
7102 {
7103 llgenindentmsg (message ("Previous: %q", s),
7104 uentry_whereLast (spec));
7105 }
7106}
7107
7108/*
7109**
7110*/
7111
7112static void
7113checkStructConformance (uentry old, uentry unew)
7114{
7115 ctype oldr, newr;
7116 uentryList fold, fnew;
7117
7118 /*
7119 ** requires: types of old and new are structs or unions
7120 */
7121
7122 llassert (uentry_isValid (old));
7123 llassert (uentry_isValid (unew));
7124
7125 oldr = ctype_realType (old->utype);
7126 fold = ctype_getFields (oldr);
7127
7128 newr = ctype_realType (unew->utype);
7129 fnew = ctype_getFields (newr);
7130
7131 if (!uentryList_matchFields (fold, fnew))
7132 {
7133 if (fileloc_equal (uentry_whereLast (old),
7134 uentry_whereLast (unew)))
7135 {
7136 ; /* cheat! */
7137 }
7138 else
7139 {
7140 if (optgenerror
7141 (FLG_MATCHFIELDS,
7142 message ("%q %q %rdeclared with fields { %q }, %s "
7143 "with fields { %q }",
7144 cstring_makeLiteral (ctype_isStruct (newr) ? "Structure": "Union"),
7145 uentry_getName (old),
7146 uentry_isDeclared (old),
7147 uentryList_unparseAbbrev (fnew),
7148 uentry_specOrDefName (old),
7149 uentryList_unparseAbbrev (fold)),
7150 uentry_whereDeclared (unew)))
7151 {
7152 uentry_showWhereLastPlain (old);
7153 uentryList_showFieldDifference (fold, fnew);
7154 }
7155 }
7156
7157 old->utype = unew->utype;
7158 }
7159}
7160
7161static void
7162checkEnumConformance (/*@notnull@*/ uentry old, /*@notnull@*/ uentry unew)
7163{
7164 /*
7165 ** requires old and new are enums
7166 */
7167
7168 ctype rold = ctype_realType (old->utype);
7169 ctype rnew = ctype_realType (unew->utype);
7170 enumNameList eold = ctype_elist (rold);
7171 enumNameList enew = ctype_elist (rnew);
7172
7173 if (!enumNameList_match (eold, enew))
7174 {
7175 if (optgenerror
7176 (FLG_MATCHFIELDS,
7177 message ("Enum %q declared with members { %q } but "
7178 "specified with members { %q }",
7179 uentry_getName (old),
7180 enumNameList_unparse (enew),
7181 enumNameList_unparse (eold)),
7182 uentry_whereDeclared (unew)))
7183 {
7184 uentry_showWhereSpecified (old);
7185 old->utype = unew->utype;
7186 }
7187 }
7188}
7189
7190/*
7191** either oldCurrent or newCurrent may be undefined!
7192*/
7193
7194static void
7195paramTypeError (uentry old, uentry oldCurrent, ctype oldType,
7196 uentry unew, uentry newCurrent, ctype newType,
7197 int paramno)
7198{
7199 bool hasError = FALSE;
7200
7201 if (uentry_isValid (newCurrent) && uentry_isDeclared (newCurrent))
7202 {
7203 if (uentry_hasName (newCurrent))
7204 {
7205 hasError = optgenerror
7206 (FLG_TYPE,
7207 message ("Parameter %d, %q, of function %q has inconsistent type: "
7208 "declared %t, %s %t",
7209 paramno + 1, uentry_getName (newCurrent),
7210 uentry_getName (unew),
7211 newType, uentry_specOrDefName (old), oldType),
7212 uentry_whereDeclared (newCurrent));
7213 }
7214 else
7215 {
7216 hasError = optgenerror
7217 (FLG_TYPE,
7218 message ("Parameter %d of function %q has inconsistent type: "
7219 "declared %t, %s %t",
7220 paramno + 1, uentry_getName (unew),
7221 newType, uentry_specOrDefName (old), oldType),
7222 uentry_whereDeclared (newCurrent));
7223
7224 DPRINTF (("type: %s / %s",
7225 ctype_unparse (newType),
7226 ctype_unparse (ctype_realType (newType))));
7227 }
7228 }
7229 else
7230 {
7231 if (uentry_isDeclared (unew))
7232 {
7233 hasError = optgenerror
7234 (FLG_TYPE,
7235 message ("Parameter %d of function %s has inconsistent type: "
7236 "declared %t, %s %t",
7237 paramno + 1, unew->uname,
7238 newType, uentry_specOrDefName (old), oldType),
7239 uentry_whereDeclared (unew));
7240 }
7241 else
7242 {
7243 hasError = optgenerror
7244 (FLG_TYPE,
7245 message ("Parameter %d of function %s has inconsistent type: "
7246 "declared %t, %s %t",
7247 paramno + 1, unew->uname,
7248 newType, uentry_specOrDefName (old), oldType),
7249 uentry_whereDeclared (unew));
7250 }
7251 }
7252
7253 if (hasError)
7254 {
6970c11b 7255 DPRINTF (("Here: %s / %s",
7256 uentry_unparseFull (oldCurrent),
7257 uentry_unparseFull (newCurrent)));
7258
616915dd 7259 if (!uentry_isUndefined (oldCurrent))
7260 {
7261 if (!uentry_isUndefined (newCurrent)
7262 && cstring_equal (uentry_rawName (newCurrent), uentry_rawName (oldCurrent)))
7263 {
7264 uentry_showWhereLast (oldCurrent);
7265 }
7266 else
7267 {
7268 uentry_showWhereLastPlain (old);
7269 }
7270
7271 uentry_setType (oldCurrent, newType);
7272 }
7273 else
7274 {
7275 uentry_showWhereLastPlain (old);
7276 }
7277 }
7278}
7279
7280static void
7281nargsError (/*@notnull@*/ uentry old, /*@notnull@*/ uentry unew)
7282{
7283 if (optgenerror
7284 (FLG_TYPE,
28bf4b0b 7285 message ("Function %s %rdeclared with %d arg%&, %s with %d",
616915dd 7286 unew->uname,
7287 uentry_isDeclared (old),
7288 uentryList_size (uentry_getParams (unew)),
7289 uentry_specOrDefName (old),
7290 uentryList_size (uentry_getParams (old))),
7291 uentry_whereDeclared (unew)))
7292 {
7293 uentry_showWhereLastPlain (old);
7294 }
7295}
7296
7297static void
7298returnValueError (/*@notnull@*/ uentry old, /*@notnull@*/ uentry unew)
7299{
7300 if (optgenerror
7301 (FLG_INCONDEFS,
7302 message ("Function %s inconsistently %rdeclared to return %t",
7303 unew->uname,
7304 uentry_isDeclared (old),
28bf4b0b 7305 ctype_getReturnType (unew->utype)),
616915dd 7306 uentry_whereDeclared (unew)))
7307 {
28bf4b0b 7308 uentry_showWhereLastVal (old, ctype_unparse (ctype_getReturnType (old->utype)));
616915dd 7309 }
7310}
7311
7312static cstring paramStorageName (uentry ue)
7313{
7314 return (cstring_makeLiteralTemp (uentry_isParam (ue) ? "param" : "storage"));
7315}
7316
7317static cstring fcnErrName (uentry ue)
7318{
7319 return (cstring_makeLiteralTemp (uentry_isFunction (ue) ? "to return" : "as"));
7320}
7321
7322extern /*@observer@*/ cstring uentry_checkedName (uentry ue)
7323{
7324 if (uentry_isVar (ue))
7325 {
7326 return (checkedName (ue->info->var->checked));
7327 }
7328 else
7329 {
7330 return (cstring_makeLiteralTemp ("<checked invalid>"));
7331 }
7332}
7333
7334static cstring checkedName (chkind checked)
7335{
7336 switch (checked)
7337 {
7338 case CH_UNKNOWN: return (cstring_makeLiteralTemp ("unknown"));
7339 case CH_UNCHECKED: return (cstring_makeLiteralTemp ("unchecked"));
7340 case CH_CHECKED: return (cstring_makeLiteralTemp ("checked"));
7341 case CH_CHECKMOD: return (cstring_makeLiteralTemp ("checkmod"));
7342 case CH_CHECKEDSTRICT: return (cstring_makeLiteralTemp ("checkedstrict"));
7343 }
7344 BADEXIT;
7345}
7346
7347static
7348void checkNullState (/*@notnull@*/ uentry old, /*@notnull@*/ uentry unew, bool mustConform, bool completeConform)
7349{
7350 nstate oldState;
7351 nstate newState;
7352
7353 if (uentry_isVar (unew))
7354 {
7355 llassert (uentry_isVar (old));
7356
7357 oldState = old->info->var->nullstate;
7358 newState = unew->info->var->nullstate;
7359 }
7360 else
7361 {
7362 oldState = sRef_getNullState (old->sref);
7363 newState = sRef_getNullState (unew->sref);
7364 }
7365
7366 if (oldState == NS_ABSNULL)
7367 {
7368 if (uentry_isVar (old))
7369 {
7370 old->info->var->nullstate = newState;
7371 }
7372
7373 sRef_mergeNullState (old->sref, newState);
7374 }
7375 else if (newState == NS_UNKNOWN)
7376 {
7377 if (completeConform && newState != oldState
7378 && uentry_isReallySpecified (old))
7379 {
7380 if (optgenerror
7381 (FLG_NEEDSPEC,
7382 message ("%s %q specified as %s, but declared without %s qualifier",
7383 ekind_capName (unew->ukind),
7384 uentry_getName (unew),
7385 nstate_unparse (oldState),
7386 nstate_unparse (oldState)),
7387 uentry_whereDeclared (unew)))
7388 {
7389 uentry_showWhereSpecified (old);
7390 }
7391 }
7392
7393 if (uentry_isVar (unew))
7394 {
7395 unew->info->var->nullstate = oldState;
7396 }
7397
7398 sRef_mergeNullState (unew->sref, oldState);
7399 }
7400 else if (newState == NS_POSNULL)
7401 {
7402 if (oldState == NS_MNOTNULL
7403 && (ctype_isUA (unew->utype)
7404 || (uentry_isFunction (unew)
28bf4b0b 7405 && ctype_isUA (ctype_getReturnType (unew->utype)))))
616915dd 7406 {
7407 if (uentry_isVar (unew))
7408 {
7409 unew->info->var->nullstate = oldState;
7410 }
7411
7412 sRef_mergeNullState (unew->sref, oldState);
7413 }
7414 else
7415 {
7416 if (oldState == NS_NOTNULL || oldState == NS_MNOTNULL
7417 || oldState == NS_UNKNOWN)
7418 {
7419 if (mustConform)
7420 {
7421 if (optgenerror
7422 (FLG_INCONDEFS,
7423 message
7424 ("%s %q inconsistently %rdeclared %s possibly null storage, "
7425 "%s %q qualifier",
7426 uentry_ekindName (unew),
7427 uentry_getName (unew),
7428 uentry_isDeclared (old),
7429 fcnErrName (unew),
7430 uentry_specOrDefName (old),
7431 cstring_makeLiteral (oldState == NS_MNOTNULL ? "with notnull" : "without null")),
7432 uentry_whereDeclared (unew)))
7433 {
7434 uentry_showWhereSpecified (old);
7435 }
7436 }
7437 }
7438
7439 if (uentry_isVar (old))
7440 {
7441 old->info->var->nullstate = newState;
7442 }
7443
7444 sRef_mergeNullState (old->sref, newState);
7445 }
7446 }
7447 else if (newState == NS_MNOTNULL)
7448 {
7449 if (oldState != NS_MNOTNULL)
7450 {
7451 if (mustConform)
7452 {
7453 if (optgenerror
7454 (FLG_INCONDEFS,
7455 message ("%s %q inconsistently %rdeclared %s notnull storage, "
7456 "%s without notnull qualifier",
7457 uentry_ekindName (unew),
7458 uentry_getName (unew),
7459 uentry_isDeclared (old),
7460 fcnErrName (unew),
7461 uentry_specOrDefName (old)),
7462 uentry_whereDeclared (unew)))
7463 {
7464 uentry_showWhereSpecified (old);
7465 }
7466 }
7467
7468 if (uentry_isVar (old))
7469 {
7470 old->info->var->nullstate = newState;
7471 }
7472
7473 sRef_mergeNullState (old->sref, newState);
7474 }
7475 }
7476 else
7477 {
7478 if (uentry_isVar (unew))
7479 {
7480 unew->info->var->nullstate = oldState;
7481 }
7482
7483 sRef_mergeNullState (unew->sref, oldState);
7484 }
7485}
7486
7487static
7488void checkDefState (/*@notnull@*/ uentry old, /*@notnull@*/ uentry unew,
7489 bool mustConform, bool completeConform)
7490{
7491 sstate oldState;
7492 sstate newState;
7493 bool vars = FALSE;
7494
7495 if (uentry_isVar (old) && uentry_isVar (unew))
7496 {
7497 oldState = old->info->var->defstate;
7498 newState = unew->info->var->defstate;
7499 vars = TRUE;
7500 }
7501 else
7502 {
7503 oldState = sRef_getDefState (old->sref);
7504 newState = sRef_getDefState (unew->sref);
7505 }
7506
28bf4b0b 7507 if (newState != oldState
7508 && newState != SS_UNKNOWN
7509 && newState != SS_DEFINED)
616915dd 7510 {
7511 if (mustConform)
7512 {
7513 if (optgenerror
7514 (FLG_INCONDEFS,
7515 message ("%s %q inconsistently %rdeclared %s %s %s, "
7516 "%s %s %s %s",
7517 uentry_ekindName (unew),
7518 uentry_getName (unew),
7519 uentry_isDeclared (old),
7520 fcnErrName (unew),
7521 sstate_unparse (newState),
7522 paramStorageName (unew),
7523 uentry_specOrDefName (old),
7524 fcnErrName (unew),
7525 sstate_unparse (oldState),
7526 paramStorageName (unew)),
7527 uentry_whereDeclared (unew)))
7528 {
7529 uentry_showWhereSpecified (old);
7530 }
7531 }
28bf4b0b 7532
616915dd 7533 if (vars) old->info->var->defstate = newState;
7534 sRef_setDefState (old->sref, newState, uentry_whereDeclared (unew));
7535 }
7536 else
7537 {
7538 if (completeConform
7539 && (newState != oldState) && (oldState != SS_DEFINED)
7540 && uentry_isReallySpecified (old))
7541 {
7542 if (optgenerror
7543 (FLG_NEEDSPEC,
7544 message ("%s %q specified as %s, but declared without %s qualifier",
7545 ekind_capName (unew->ukind),
7546 uentry_getName (unew),
7547 sstate_unparse (oldState),
7548 sstate_unparse (oldState)),
7549 uentry_whereDeclared (unew)))
7550 {
7551 uentry_showWhereSpecified (old);
7552 }
7553 }
28bf4b0b 7554
616915dd 7555 if (vars) unew->info->var->defstate = oldState;
7556 sRef_setDefState (unew->sref, oldState, uentry_whereDeclared (unew));
7557 }
7558}
7559
7560static void
7561 checkAliasState (/*@notnull@*/ uentry old, /*@notnull@*/ uentry unew,
7562 bool mustConform, bool completeConform)
7563{
7564 alkind newKind;
7565 alkind oldKind;
7566
7567 oldKind = sRef_getAliasKind (old->sref);
7568 newKind = sRef_getAliasKind (unew->sref);
7569
7570 if (alkind_isImplicit (newKind)
7571 || (alkind_isRefCounted (newKind) && !uentry_isDatatype (unew)))
7572 {
7573 if (completeConform && !alkind_equal (newKind, oldKind)
7574 && uentry_isReallySpecified (old))
7575 {
7576 if (optgenerror
7577 (FLG_NEEDSPEC,
7578 message ("%s %q specified as %s, but declared without "
7579 "explicit alias qualifier",
7580 ekind_capName (unew->ukind),
7581 uentry_getName (unew),
7582 alkind_unparse (oldKind)),
7583 uentry_whereDeclared (unew)))
7584 {
7585 uentry_showWhereSpecified (old);
7586 }
7587 }
7588
7589 /*
7590 ** This really shouldn't be necessary, but it is!
7591 ** Function params (?) use new here.
7592 */
7593
7594 sRef_setAliasKind (unew->sref, oldKind, uentry_whereDeclared (unew));
7595 return;
7596 }
7597
7598 if (alkind_isKnown (newKind))
7599 {
7600 if (!alkind_equal (oldKind, newKind))
7601 {
7602 if (alkind_isKnown (oldKind))
7603 {
7604 if (mustConform &&
7605 optgenerror
7606 (FLG_INCONDEFS,
7607 message ("%s %q inconsistently %rdeclared %s %s storage, "
7608 "%s as %s storage",
7609 uentry_ekindName (unew),
7610 uentry_getName (unew),
7611 uentry_isDeclared (old),
7612 fcnErrName (unew),
7613 alkind_unparse (newKind),
7614 uentry_specOrDefName (old),
7615 alkind_unparse (oldKind)),
7616 uentry_whereDeclared (unew)))
7617 {
7618 uentry_showWhereSpecified (old);
7619
28bf4b0b 7620 DPRINTF (("Old: %s", sRef_unparseFull (old->sref)));
7621 DPRINTF (("New: %s", sRef_unparseFull (unew->sref)));
616915dd 7622 sRef_setAliasKind (old->sref, AK_ERROR,
7623 uentry_whereDeclared (unew));
7624 }
7625 else
7626 {
7627 sRef_setAliasKind (old->sref, newKind,
7628 uentry_whereDeclared (unew));
7629 }
7630 }
7631 else
7632 {
7633 if (!(alkind_isImplicit (newKind)))
7634 {
7635 if (mustConform &&
7636 !uentry_isFunction (unew) &&
7637 optgenerror
7638 (FLG_INCONDEFS,
7639 message ("%s %q inconsistently %rdeclared %s %s storage, "
7640 "implicitly %s as temp storage",
7641 uentry_ekindName (unew),
7642 uentry_getName (unew),
7643 uentry_isDeclared (old),
7644 fcnErrName (unew),
7645 alkind_unparse (newKind),
7646 uentry_specOrDefName (old)),
7647 uentry_whereDeclared (unew)))
7648 {
7649 uentry_showWhereSpecified (old);
7650 oldKind = AK_ERROR;
7651 }
7652
7653 sRef_setAliasKind (old->sref, newKind,
7654 uentry_whereDeclared (unew));
7655 }
7656 else /* newKind is temp or refcounted */
7657 {
7658 ;
7659 }
7660 }
7661 }
7662 }
7663 else /* newKind unknown */
7664 {
7665 ;
7666 }
7667}
7668
7669static void
7670 checkExpState(/*@notnull@*/ uentry old, /*@notnull@*/ uentry unew,
7671 bool mustConform, bool completeConform)
7672{
7673 exkind newKind;
7674 exkind oldKind;
7675
7676 oldKind = sRef_getExKind (old->sref);
7677 newKind = sRef_getExKind (unew->sref);
7678
7679 if (exkind_isKnown (newKind))
7680 {
7681 if (oldKind != newKind)
7682 {
7683 if (exkind_isKnown (oldKind))
7684 {
7685 if (mustConform &&
7686 optgenerror
7687 (FLG_INCONDEFS,
7688 message ("%s %q inconsistently %rdeclared %s %s, %s as %s",
7689 uentry_ekindName (unew),
7690 uentry_getName (unew),
7691 uentry_isDeclared (old),
7692 fcnErrName (unew),
7693 exkind_unparse (newKind),
7694 uentry_specOrDefName (old),
7695 exkind_unparse (oldKind)),
7696 uentry_whereDeclared (unew)))
7697 {
7698 uentry_showWhereSpecified (old);
7699 }
7700
7701 sRef_setExKind (old->sref, newKind, uentry_whereDefined (unew));
7702 }
7703 else
7704 {
7705 if (mustConform &&
7706 optgenerror
7707 (FLG_INCONDEFS,
7708 message ("%s %q inconsistently %rdeclared %s %s, "
7709 "implicitly %s without exposure qualifier",
7710 uentry_ekindName (unew),
7711 uentry_getName (unew),
7712 uentry_isDeclared (old),
7713 fcnErrName (unew),
7714 exkind_unparse (newKind),
7715 uentry_specOrDefName (old)),
7716 uentry_whereDeclared (unew)))
7717 {
7718 uentry_showWhereSpecified (old);
7719 }
7720
7721 sRef_setExKind (old->sref, newKind, uentry_whereDefined (unew));
7722 }
7723 }
7724 }
7725 else
7726 {
7727 if (completeConform && exkind_isKnown (oldKind)
7728 && uentry_isReallySpecified (old))
7729 {
7730 if (optgenerror
7731 (FLG_NEEDSPEC,
7732 message ("%s %q specified as %s, but declared without "
7733 "exposure qualifier",
7734 ekind_capName (unew->ukind),
7735 uentry_getName (unew),
7736 exkind_unparse (oldKind)),
7737 uentry_whereDeclared (unew)))
7738 {
7739 uentry_showWhereSpecified (old);
7740 }
7741 }
7742
7743 /* yes, this is necessary! (if its a param) */
7744 sRef_setExKind (unew->sref, oldKind, fileloc_undefined);
7745 }
7746}
7747
28bf4b0b 7748static void
7749checkMetaState (/*@notnull@*/ uentry old, /*@notnull@*/ uentry unew,
7750 bool mustConform, /*@unused@*/ bool completeConform)
7751{
7752 valueTable newvals = sRef_getValueTable (unew->sref);
7753
7754 if (valueTable_isDefined (newvals))
7755 {
7756 DPRINTF (("Check meta state: %s -> %s",
7757 uentry_unparseFull (old),
7758 uentry_unparseFull (unew)));
7759
7760 DPRINTF (("Check meta state refs: %s -> %s",
7761 sRef_unparseFull (old->sref),
7762 sRef_unparseFull (unew->sref)));
7763
7764 DPRINTF (("Value table: %s", valueTable_unparse (newvals)));
7765
7766 /*
7767 ** Copy the new values into the old ref
7768 */
7769
7770 valueTable_elements (newvals, key, newval)
7771 {
7772 metaStateInfo msinfo = context_lookupMetaStateInfo (key);
7773 stateValue oldval = sRef_getMetaStateValue (old->sref, key);
7774
7775 llassert (metaStateInfo_isDefined (msinfo));
7776
7777 if (stateValue_isUndefined (oldval))
7778 {
7779 sRef_setMetaStateValue (old->sref, key, stateValue_getValue (newval), uentry_whereLast (unew));
7780 }
7781 else
7782 {
7783 if (stateValue_isError (oldval))
7784 {
7785 if (!stateValue_isError (newval))
7786 {
7787 sRef_setMetaStateValue (old->sref, key, stateValue_getValue (newval), uentry_whereLast (unew));
7788 }
7789 else
7790 {
7791 ; /* No change necessary. */
7792 }
7793 }
7794 else
7795 {
7796 if (stateValue_getValue (newval) != stateValue_getValue (oldval))
7797 {
7798 if (fileloc_isXHFile (uentry_whereDeclared (unew)))
7799 {
7800 ;
7801 }
7802 else
7803 {
ccf0a4a8 7804 if (!stateValue_isError (newval)
7805 && !stateValue_isImplicit (newval))
28bf4b0b 7806 {
ccf0a4a8 7807 if (uentry_hasName (unew)
7808 || !sRef_isParam (uentry_getSref (unew)))
7809 {
7810 if (mustConform
7811 && optgenerror
7812 (FLG_INCONDEFS,
7813 message ("%s %q inconsistently %rdeclared %s %q, %s as %q",
7814 uentry_ekindName (unew),
7815 uentry_getName (unew),
7816 uentry_isDeclared (old),
7817 fcnErrName (unew),
7818 stateValue_unparseValue (newval, msinfo),
7819 uentry_specOrDefName (old),
7820 stateValue_unparseValue (oldval, msinfo)),
7821 uentry_whereDeclared (unew)))
7822 {
7823 uentry_showWhereSpecified (old);
7824 }
7825 }
7826 else
abb1cb43 7827 {
ccf0a4a8 7828 if (mustConform
7829 && optgenerror
7830 (FLG_INCONDEFS,
7831 message ("%s %d inconsistently %rdeclared %s %q, %s as %q",
7832 uentry_ekindName (unew),
7833 sRef_getParam (uentry_getSref (unew)),
7834 uentry_isDeclared (old),
7835 fcnErrName (unew),
7836 stateValue_unparseValue (newval, msinfo),
7837 uentry_specOrDefName (old),
7838 stateValue_unparseValue (oldval, msinfo)),
7839 uentry_whereDeclared (unew)))
7840 {
7841 uentry_showWhereSpecified (old);
7842 }
abb1cb43 7843 }
28bf4b0b 7844 }
7845 }
7846
7847 DPRINTF (("Updating!"));
7848 sRef_setMetaStateValue (old->sref, key, stateValue_getValue (newval), uentry_whereLast (unew));
7849 }
7850 else
7851 {
7852 DPRINTF (("Values match"));
7853 }
7854 }
7855 }
7856 } end_valueTable_elements ;
7857 }
7858}
7859
616915dd 7860static void
7861uentry_checkStateConformance (/*@notnull@*/ uentry old,
7862 /*@notnull@*/ uentry unew,
7863 bool mustConform, bool completeConform)
7864{
7865 checkDefState (old, unew, mustConform, completeConform);
7866 checkNullState (old, unew, mustConform, completeConform);
7867 checkAliasState (old, unew, mustConform, completeConform);
7868 checkExpState (old, unew, mustConform, completeConform);
28bf4b0b 7869 checkMetaState (old, unew, mustConform, completeConform);
616915dd 7870
7871 sRef_storeState (old->sref);
7872 sRef_storeState (unew->sref);
7873}
7874
7875static void
7876checkVarConformance (uentry old, uentry unew, bool mustConform, bool completeConform)
7877{
7878 if (uentry_isElipsisMarker (old) || uentry_isElipsisMarker (unew))
7879 {
7880 return;
7881 }
7882
7883 llassert (uentry_isVar (old));
7884 llassert (uentry_isVar (unew));
7885
7886 if (cstring_isEmpty (old->uname))
7887 {
7888 cstring_free (old->uname);
7889 old->uname = cstring_copy (unew->uname);
7890 }
7891
7892 if (unew->info->var->kind == VKRETPARAM
7893 || unew->info->var->kind == VKSEFRETPARAM)
7894 {
7895 if (old->info->var->kind != VKRETPARAM
7896 && old->info->var->kind != VKSEFRETPARAM)
7897 {
7898 if (optgenerror
7899 (FLG_INCONDEFS,
7900 message ("Parameter %q inconsistently %rdeclared as "
7901 "returned parameter",
7902 uentry_getName (unew),
7903 uentry_isDeclared (old)),
7904 uentry_whereDeclared (unew)))
7905 {
7906 uentry_showWhereSpecified (old);
7907 old->info->var->kind = unew->info->var->kind;
7908 }
7909 }
7910 }
7911
7912
7913 if (unew->info->var->kind == VKSEFPARAM || unew->info->var->kind == VKSEFRETPARAM)
7914 {
7915 if (old->info->var->kind != VKSEFPARAM
7916 && old->info->var->kind != VKSEFRETPARAM)
7917 {
7918 if (optgenerror
7919 (FLG_INCONDEFS,
7920 message ("Parameter %qinconsistently %rdeclared as "
7921 "sef parameter",
7922 uentry_getOptName (unew),
7923 uentry_isDeclared (old)),
7924 uentry_whereDeclared (unew)))
7925 {
7926 uentry_showWhereSpecified (old);
7927 old->info->var->kind = unew->info->var->kind;
7928 }
7929 }
7930 }
7931
7932 if (old->info->var->kind == VKSPEC)
7933 {
7934 old->info->var->kind = unew->info->var->kind;
7935 }
7936 else
7937 {
7938 unew->info->var->kind = old->info->var->kind;
7939 }
7940
7941 if (unew->info->var->checked != CH_UNKNOWN
7942 && unew->info->var->checked != old->info->var->checked)
7943 {
7944 if (old->info->var->checked == CH_UNKNOWN
7945 && !fileloc_isUser (uentry_whereLast (old)))
7946 {
7947 ; /* no error */
7948 }
7949 else
7950 {
7951 if (optgenerror
7952 (FLG_INCONDEFS,
7953 message ("Variable %q inconsistently %rdeclared as "
7954 "%s parameter (was %s)",
7955 uentry_getName (unew),
7956 uentry_isDeclared (old),
7957 checkedName (unew->info->var->checked),
7958 checkedName (old->info->var->checked)),
7959 uentry_whereDeclared (unew)))
7960 {
7961 uentry_showWhereSpecified (old);
7962 }
7963 }
7964
7965 old->info->var->checked = unew->info->var->checked;
7966 }
7967 else
7968 {
7969 if (completeConform
7970 && (old->info->var->checked != CH_UNKNOWN)
7971 && uentry_isReallySpecified (old))
7972 {
7973 if (optgenerror
7974 (FLG_NEEDSPEC,
7975 message ("%s %q specified as %s, but declared without %s qualifier",
7976 ekind_capName (unew->ukind),
7977 uentry_getName (unew),
7978 checkedName (old->info->var->checked),
7979 checkedName (old->info->var->checked)),
7980 uentry_whereDeclared (unew)))
7981 {
7982 uentry_showWhereSpecified (old);
7983 }
7984 }
7985
7986 unew->info->var->checked = old->info->var->checked;
7987 }
7988
7989 uentry_checkStateConformance (old, unew, mustConform, completeConform);
7990}
7991
7992void uentry_checkMatchParam (uentry u1, uentry u2, int paramno, exprNode e)
7993{
7994 if (uentry_isElipsisMarker (u1) || uentry_isElipsisMarker (u2))
7995 {
7996 return;
7997 }
7998
7999 llassert (uentry_isVar (u1));
8000 llassert (uentry_isVar (u2));
8001
8002 if (u1->info->var->kind != u2->info->var->kind) {
8003 if (u1->info->var->kind == VKSEFRETPARAM) {
8004 if (u2->info->var->kind == VKRETPARAM) {
8005 voptgenerror
8006 (FLG_TYPE,
8007 message ("Function types are inconsistent. Parameter %d is "
8008 "sef parameter, but non-sef parameter in "
8009 "assigned function: %s",
8010 paramno, exprNode_unparse (e)),
8011 exprNode_loc (e));
8012 } else if (u2->info->var->kind == VKSEFPARAM) {
8013 voptgenerror
8014 (FLG_TYPE,
8015 message ("Function types are inconsistent. Parameter %d is "
8016 "returns parameter, but non-returns parameter in "
8017 "assigned function: %s",
8018 paramno, exprNode_unparse (e)),
8019 exprNode_loc (e));
8020 } else {
8021 voptgenerror
8022 (FLG_TYPE,
8023 message ("Function types are inconsistent. Parameter %d is "
8024 "sef returns parameter, but non-sef returns parameter in "
8025 "assigned function: %s",
8026 paramno, exprNode_unparse (e)),
8027 exprNode_loc (e));
8028 }
8029 } else if (u1->info->var->kind == VKRETPARAM) {
8030 voptgenerror
8031 (FLG_TYPE,
8032 message ("Function types are inconsistent. Parameter %d is "
8033 "returns parameter, but non-returns parameter in "
8034 "assigned function: %s",
8035 paramno, exprNode_unparse (e)),
8036 exprNode_loc (e));
8037 } else if (u1->info->var->kind == VKSEFPARAM) {
8038 voptgenerror
8039 (FLG_TYPE,
8040 message ("Function types are inconsistent. Parameter %d is "
8041 "sef parameter, but non-sef parameter in "
8042 "assigned function: %s",
8043 paramno, exprNode_unparse (e)),
8044 exprNode_loc (e));
8045 } else {
8046 if (u2->info->var->kind == VKSEFRETPARAM) {
8047 voptgenerror
8048 (FLG_TYPE,
8049 message ("Function types are inconsistent. Parameter %d is "
8050 "normal parameter, but sef returns parameter in "
8051 "assigned function: %s",
8052 paramno, exprNode_unparse (e)),
8053 exprNode_loc (e));
8054 } else if (u2->info->var->kind == VKSEFPARAM) {
8055 voptgenerror
8056 (FLG_TYPE,
8057 message ("Function types are inconsistent. Parameter %d is "
8058 "normal parameter, but sef parameter in "
8059 "assigned function: %s",
8060 paramno, exprNode_unparse (e)),
8061 exprNode_loc (e));
8062 } else if (u2->info->var->kind == VKRETPARAM) {
8063 voptgenerror
8064 (FLG_TYPE,
8065 message ("Function types are inconsistent. Parameter %d is "
8066 "normal parameter, but returns parameter in "
8067 "assigned function: %s",
8068 paramno, exprNode_unparse (e)),
8069 exprNode_loc (e));
8070 } else {
8071 BADBRANCH;
8072 }
8073 }
8074 }
8075
8076 if (u1->info->var->defstate != u2->info->var->defstate)
8077 {
8078 voptgenerror
8079 (FLG_TYPE,
8080 message ("Function types are inconsistent. Parameter %d is "
8081 "%s, but %s in assigned function: %s",
8082 paramno,
8083 sstate_unparse (u1->info->var->defstate),
8084 sstate_unparse (u2->info->var->defstate),
8085 exprNode_unparse (e)),
8086 exprNode_loc (e));
8087 }
8088
8089 if (u1->info->var->nullstate != u2->info->var->nullstate)
8090 {
8091 voptgenerror
8092 (FLG_TYPE,
8093 message ("Function types are inconsistent. Parameter %d is "
8094 "%s, but %s in assigned function: %s",
8095 paramno,
8096 nstate_unparse (u1->info->var->nullstate),
8097 nstate_unparse (u2->info->var->nullstate),
8098 exprNode_unparse (e)),
8099 exprNode_loc (e));
8100 }
8101
8102 if (sRef_getAliasKind (u1->sref) != sRef_getAliasKind (u2->sref))
8103 {
8104 voptgenerror
8105 (FLG_TYPE,
8106 message ("Function types are inconsistent. Parameter %d is "
8107 "%s, but %s in assigned function: %s",
8108 paramno,
8109 alkind_unparse (sRef_getAliasKind (u1->sref)),
8110 alkind_unparse (sRef_getAliasKind (u2->sref)),
8111 exprNode_unparse (e)),
8112 exprNode_loc (e));
8113 }
8114
8115 if (sRef_getExKind (u1->sref) != sRef_getExKind (u2->sref))
8116 {
8117 voptgenerror
8118 (FLG_TYPE,
8119 message ("Function types are inconsistent. Parameter %d is "
8120 "%s, but %s in assigned function: %s",
8121 paramno,
8122 exkind_unparse (sRef_getExKind (u1->sref)),
8123 exkind_unparse (sRef_getExKind (u2->sref)),
8124 exprNode_unparse (e)),
8125 exprNode_loc (e));
8126 }
8127}
8128
8129static void
8130checkFunctionConformance (/*@unique@*/ /*@notnull@*/ uentry old,
8131 /*@notnull@*/ uentry unew,
8132 bool mustConform, /*@unused@*/ bool completeConform)
8133{
8134 uentryList oldParams = uentry_getParams (old);
8135 uentryList newParams = uentry_getParams (unew);
8136 ctype newType = unew->utype;
8137 ctype oldType = old->utype;
8138 ctype oldRetType = ctype_unknown;
8139 ctype newRetType = ctype_unknown;
8140
28bf4b0b 8141 DPRINTF (("Function conform: %s ==> %s",
8142 uentry_unparseFull (old),
8143 uentry_unparseFull (unew)));
8144
616915dd 8145 if (uentry_isForward (old))
8146 {
8147 mustConform = FALSE;
efd360a3 8148 uentry_updateInto (old, unew);
616915dd 8149 return;
8150 }
8151
8152 /*
8153 ** check return values
8154 */
8155
8156 if (ctype_isKnown (oldType))
8157 {
8158 llassert (ctype_isFunction (oldType));
8159
28bf4b0b 8160 oldRetType = ctype_getReturnType (oldType);
616915dd 8161 }
8162
8163 if (ctype_isKnown (newType))
8164 {
8165 llassert (ctype_isFunction (newType));
8166
28bf4b0b 8167 newRetType = ctype_getReturnType (newType);
616915dd 8168 }
8169
8170 if (ctype_isKnown (oldRetType) && ctype_isKnown (newRetType)
8171 && !ctype_matchDef (newRetType, oldRetType))
8172 {
8173 if (mustConform) returnValueError (old, unew);
8174 }
8175 else
8176 {
8177 if (ctype_isConj (newRetType))
8178 {
8179 if (ctype_isConj (oldRetType))
8180 {
8181 if (!ctype_sameAltTypes (newRetType, oldRetType))
8182 {
8183 if (optgenerror
8184 (FLG_INCONDEFS,
8185 message ("Function %q inconsistently %rdeclared to "
8186 "return alternate types %s "
8187 "(types match, but alternates are not identical, "
8188 "so checking may not be correct)",
8189 uentry_getName (unew),
8190 uentry_isDeclared (old),
8191 ctype_unparse (newRetType)),
8192 uentry_whereDeclared (unew)))
8193 {
8194 uentry_showWhereLastVal (old, ctype_unparse (oldRetType));
8195 }
8196 }
8197 }
8198 else
8199 {
8200 old->utype = ctype_makeFunction (oldRetType, uentryList_copy (newParams));
8201 }
8202 }
8203 }
8204
28bf4b0b 8205 DPRINTF (("Before state: %s",
8206 uentry_unparseFull (old)));
616915dd 8207 uentry_checkStateConformance (old, unew, mustConform, completeConform);
28bf4b0b 8208 DPRINTF (("After state: %s",
8209 uentry_unparseFull (old)));
616915dd 8210
8211 if (!exitkind_equal (unew->info->fcn->exitCode, old->info->fcn->exitCode))
8212 {
8213 if (exitkind_isKnown (unew->info->fcn->exitCode))
8214 {
8215 if (optgenerror
8216 (FLG_INCONDEFS,
8217 message ("Function %q inconsistently %rdeclared using %s",
8218 uentry_getName (unew),
8219 uentry_isDeclared (old),
8220 exitkind_unparse (unew->info->fcn->exitCode)),
8221 uentry_whereDeclared (unew)))
8222 {
8223 uentry_showWhereSpecified (old);
8224 }
8225 }
8226 else
8227 {
8228 unew->info->fcn->exitCode = old->info->fcn->exitCode;
8229 }
8230 }
8231
8232 if (!qual_isUnknown (unew->info->fcn->nullPred))
8233 {
28bf4b0b 8234 if (!qual_match (old->info->fcn->nullPred, unew->info->fcn->nullPred))
616915dd 8235 {
8236 if (optgenerror
8237 (FLG_INCONDEFS,
8238 message ("Function %q inconsistently %rdeclared using %s",
8239 uentry_getName (unew),
8240 uentry_isDeclared (old),
8241 qual_unparse (unew->info->fcn->nullPred)),
8242 uentry_whereDeclared (unew)))
8243 {
8244 uentry_showWhereSpecified (old);
8245 }
8246 }
8247 }
8248 else
8249 {
8250 unew->info->fcn->nullPred = old->info->fcn->nullPred;
8251 }
8252
8253 if (unew->info->fcn->specialCode != SPC_NONE)
8254 {
8255 if (old->info->fcn->specialCode != unew->info->fcn->specialCode)
8256 {
8257 if (optgenerror
8258 (FLG_INCONDEFS,
8259 message ("Function %q inconsistently %rdeclared using %s",
8260 uentry_getName (unew),
8261 uentry_isDeclared (old),
8262 specCode_unparse (unew->info->fcn->specialCode)),
8263 uentry_whereDeclared (unew)))
8264 {
8265 uentry_showWhereSpecified (old);
8266 }
8267 }
8268 }
8269 else
8270 {
8271 unew->info->fcn->specialCode = old->info->fcn->specialCode;
8272 }
8273
8274 /*
8275 ** check parameters
8276 */
8277
8278 if (!uentryList_sameObject (oldParams, newParams)
8279 && (!uentryList_isMissingParams (oldParams)))
8280 {
8281 if (!uentryList_isMissingParams (newParams))
8282 {
8283 int paramno = 0;
8284 int nparams = uentryList_size (oldParams);
8285 bool checknames = context_maybeSet (FLG_DECLPARAMMATCH);
8286
8287 if (nparams != uentryList_size (newParams))
8288 {
8289 nargsError (old, unew);
8290 }
8291
8292 if (uentryList_size (newParams) < nparams)
8293 {
8294 nparams = uentryList_size (newParams);
8295 }
8296
8297 while (paramno < nparams)
8298 {
8299 uentry oldCurrent = uentryList_getN (oldParams, paramno);
8300 uentry newCurrent = uentryList_getN (newParams, paramno);
8301 ctype oldCurrentType = uentry_getType (oldCurrent);
8302 ctype newCurrentType = uentry_getType (newCurrent);
8303
8304 llassert (uentry_isValid (oldCurrent)
8305 && uentry_isValid (newCurrent));
8306
8307 if (!uentry_isElipsisMarker (oldCurrent)
8308 && !uentry_isElipsisMarker (newCurrent))
8309 {
8310 checkVarConformance (oldCurrent, newCurrent,
8311 mustConform, completeConform);
8312 }
8313
8314 if (checknames)
8315 {
8316 if (uentry_hasName (oldCurrent)
8317 && uentry_hasName (newCurrent))
8318 {
8319 cstring oldname = uentry_getName (oldCurrent);
8320 cstring pfx = context_getString (FLG_DECLPARAMPREFIX);
8321 cstring oname;
8322 cstring nname = uentry_getName (newCurrent);
8323 cstring nnamefix;
8324
8325 if (cstring_isDefined (pfx)
8326 && cstring_equalPrefix (oldname, cstring_toCharsSafe (pfx)))
8327 {
8328 oname = cstring_suffix (oldname, cstring_length (pfx));
8329 }
8330 else
8331 {
8332 oname = oldname;
8333 /*@-branchstate@*/ } /*@=branchstate@*/
8334
8335 if (cstring_isDefined (pfx)
8336 && cstring_equalPrefix (nname, cstring_toCharsSafe (pfx)))
8337 {
8338 nnamefix = cstring_suffix (nname, cstring_length (pfx));
8339 }
8340 else
8341 {
8342 nnamefix = nname;
8343 /*@-branchstate@*/ } /*@=branchstate@*/
8344
8345 if (!cstring_equal (oname, nnamefix))
8346 {
8347 if (optgenerror
8348 (FLG_DECLPARAMMATCH,
8349 message ("Definition parameter name %s does not match "
8350 "name of corresponding parameter in "
8351 "declaration: %s",
8352 nnamefix, oname),
8353 uentry_whereLast (newCurrent)))
8354 {
8355 uentry_showWhereLastPlain (oldCurrent);
8356 }
8357 }
8358
8359 cstring_free (oldname);
8360 cstring_free (nname);
8361 }
8362 }
8363
8364 if (!ctype_match (oldCurrentType, newCurrentType))
8365 {
8366 paramTypeError (old, oldCurrent, oldCurrentType,
8367 unew, newCurrent, newCurrentType, paramno);
8368 }
8369 else
8370 {
8371 if (ctype_isMissingParamsMarker (newCurrentType)
8372 || ctype_isElips (newCurrentType)
8373 || ctype_isMissingParamsMarker (oldCurrentType)
8374 || ctype_isElips (oldCurrentType))
8375 {
8376 ;
8377 }
8378 else
8379 {
8380 if (ctype_isConj (newCurrentType))
8381 {
8382 if (ctype_isConj (oldCurrentType))
8383 {
8384 if (!ctype_sameAltTypes (newCurrentType, oldCurrentType))
8385 {
8386 if (optgenerror
8387 (FLG_INCONDEFS,
8388 message ("Parameter %q inconsistently %rdeclared with "
8389 "alternate types %s "
8390 "(types match, but alternates are not identical, "
8391 "so checking may not be correct)",
8392 uentry_getName (newCurrent),
8393 uentry_isDeclared (oldCurrent),
8394 ctype_unparse (newCurrentType)),
8395 uentry_whereDeclared (unew)))
8396 {
8397 uentry_showWhereLastVal (oldCurrent,
8398 ctype_unparse (oldCurrentType));
8399 }
8400 }
8401 }
8402 else
8403 {
8404 if (optgenerror
8405 (FLG_INCONDEFS,
8406 message ("Parameter %q inconsistently %rdeclared with "
8407 "alternate types %s",
8408 uentry_getName (newCurrent),
8409 uentry_isDeclared (oldCurrent),
8410 ctype_unparse (newCurrentType)),
8411 uentry_whereDeclared (unew)))
8412 {
8413 uentry_showWhereLastVal (oldCurrent,
8414 ctype_unparse (oldCurrentType));
8415
8416 }
8417 }
8418 }
8419 else
8420 {
8421 if (ctype_isConj (oldCurrentType))
8422 {
8423 uentry_setType (newCurrent, oldCurrentType);
8424 }
8425 }
8426 }
8427 }
8428
8429 paramno++;
8430 /*
8431 ** Forgot this! detected by lclint:
8432 ** uentry.c:1257,15: Suspected infinite loop
8433 */
8434 }
8435 }
8436 }
8437
8438 if (!uentryList_isMissingParams (newParams))
8439 {
8440 if (ctype_isConj (oldRetType))
8441 {
8442 old->utype = ctype_makeFunction (oldRetType,
8443 uentryList_copy (newParams));
8444 }
8445 else
8446 {
8447 old->utype = unew->utype;
8448 }
8449 }
8450
8451 checkGlobalsConformance (old, unew, mustConform, completeConform);
8452 checkModifiesConformance (old, unew, mustConform, completeConform);
8453
28bf4b0b 8454 DPRINTF (("Before list: %s",
8455 uentry_unparseFull (old)));
8456
8457 if (stateClauseList_isDefined (unew->info->fcn->specclauses))
616915dd 8458 {
28bf4b0b 8459 if (!stateClauseList_isDefined (old->info->fcn->specclauses))
616915dd 8460 {
28bf4b0b 8461 /*
616915dd 8462 if (optgenerror
8463 (FLG_INCONDEFS,
8464 message ("Function %q redeclared using special clauses (can only "
8465 "be used in first declaration)",
8466 uentry_getName (unew)),
8467 uentry_whereDeclared (unew)))
8468 {
8469 uentry_showWhereLast (old);
8470 }
28bf4b0b 8471 */
8472
8473 /*@i23 need checking @*/
8474
8475 old->info->fcn->specclauses = unew->info->fcn->specclauses;
616915dd 8476 }
8477 else
8478 {
28bf4b0b 8479 /*@i43 should be able to append? @*/
8480
8481 stateClauseList_checkEqual (old, unew);
8482 stateClauseList_free (unew->info->fcn->specclauses);
8483 unew->info->fcn->specclauses = stateClauseList_undefined;
8484 /*@-branchstate@*/
616915dd 8485 }
28bf4b0b 8486 /*@=branchstate@*/ /*@i23 shouldn't need this@*/
616915dd 8487 }
8488
8489 if (fileloc_isUndefined (old->whereDeclared))
8490 {
8491 old->whereDeclared = fileloc_copy (unew->whereDeclared);
8492 }
8493 else if (fileloc_isUndefined (unew->whereDeclared))
8494 {
8495 unew->whereDeclared = fileloc_copy (old->whereDeclared);
8496 }
8497 else
8498 {
8499 /* no change */
8500 }
8501}
8502
8503void
8504uentry_mergeConstantValue (uentry ue, /*@only@*/ multiVal m)
8505{
8506 multiVal uval;
8507
8508 llassert (uentry_isValid (ue));
8509 llassert (uentry_isEitherConstant (ue));
8510
b9904f57 8511 DPRINTF (("Constant value: %s / %s", uentry_unparse (ue), multiVal_unparse (m)));
8512 uval = uentry_getConstantValue (ue);
616915dd 8513
8514 if (multiVal_isDefined (uval))
8515 {
8516 if (multiVal_isDefined (m))
8517 {
8518 if (!multiVal_equiv (uval, m))
8519 {
8520 if (optgenerror
8521 (FLG_INCONDEFS,
8522 message ("%s %q defined with inconsistent value: %q",
8523 ekind_capName (ue->ukind),
8524 uentry_getName (ue),
8525 multiVal_unparse (m)),
8526 g_currentloc))
8527 {
8528 uentry_showWhereLastExtra (ue, multiVal_unparse (uval));
8529 }
8530 }
8531 }
8532 multiVal_free (m);
8533 }
8534 else
8535 {
b9904f57 8536 uentry_setConstantValue (ue, m);
616915dd 8537 }
8538}
8539
8540static
8541bool checkTypeConformance (/*@notnull@*/ uentry old, /*@notnull@*/ uentry unew,
8542 bool mustConform)
8543{
8544 bool typeError = FALSE;
8545
8546 if (uentry_isStructTag (old) || uentry_isUnionTag (old))
8547 {
8548 if (ctype_isSU (old->utype) && ctype_isSU (unew->utype))
8549 {
8550 if (mustConform)
8551 {
28bf4b0b 8552 DPRINTF (("Check struct conformance: %s / %s",
8553 uentry_unparseFull (old),
8554 uentry_unparseFull (unew)));
616915dd 8555 checkStructConformance (old, unew);
8556 }
8557 }
8558 else
8559 {
8560 if (!(ctype_isBogus (old->utype) || ctype_isBogus (unew->utype)))
8561 {
8562 llbug (message ("struct tags: bad types: %t / %t",
8563 old->utype, unew->utype));
8564 }
8565 }
8566 }
8567 else if (uentry_isEnumTag (old))
8568 {
8569 if (ctype_isEnum (old->utype) && ctype_isEnum (unew->utype))
8570 {
8571 if (mustConform) checkEnumConformance (old, unew);
8572 }
8573 else
8574 {
8575 if (!(ctype_isBogus (old->utype) || ctype_isBogus (unew->utype)))
8576 {
8577 llbug (message ("enum! bad type: %s / %s", ctype_unparse (old->utype),
8578 ctype_unparse (unew->utype)));
8579 }
8580 }
8581 }
8582 else if (!ctype_match (old->utype, unew->utype))
8583 {
28bf4b0b 8584 DPRINTF (("Type mismatch: %s / %s",
8585 ctype_unparse (old->utype),
8586 ctype_unparse (unew->utype)));
8587
616915dd 8588 if (cstring_equal (uentry_rawName (old), context_getBoolName ()))
8589 {
8590 ctype realt = ctype_realType (unew->utype);
8591
8592 if (ctype_isRealInt (realt) || ctype_isChar (realt))
8593 {
8594 unew->utype = ctype_bool;
8595 }
8596 else
8597 {
8598 if (mustConform)
8599 {
8600 typeError = optgenerror
8601 (FLG_INCONDEFS,
8602 message ("%q defined as %s", uentry_getName (old),
8603 ctype_unparse (realt)),
8604 uentry_whereDeclared (unew));
8605 }
8606 }
8607 }
8608 else
8609 {
8610 if (mustConform)
8611 {
8612 ctype oldr = ctype_realType (old->utype);
8613 ctype newr = ctype_realType (unew->utype);
8614
8615 if (ctype_isStruct (oldr) && ctype_isStruct (newr))
8616 {
8617 checkStructConformance (old, unew);
8618 }
8619 else if (ctype_isUnion (oldr) && ctype_isUnion (newr))
8620 {
8621 checkStructConformance (old, unew);
8622 }
8623 else if (ctype_isEnum (oldr) && ctype_isEnum (newr))
8624 {
8625 checkEnumConformance (old, unew);
8626 }
8627 else if (uentry_isConstant (old)
8628 && (ctype_isAbstract (oldr) && ctype_isEnum (newr)))
8629 {
8630 /* okay...for now! (should check the type is reset later... */
8631 }
8632 else
8633 {
8634 DPRINTF (("YABA!"));
8635 if (optgenerror
8636 (FLG_INCONDEFS,
8637 message ("%s %q %rdeclared with inconsistent type: %t",
8638 ekind_capName (unew->ukind),
8639 uentry_getName (unew),
8640 uentry_isDeclared (old),
8641 unew->utype),
8642 uentry_whereDeclared (unew)))
8643 {
8644 uentry_showWhereLast (old);
8645 typeError = TRUE;
8646 }
8647 }
8648 }
8649 }
8650 }
8651 else
8652 {
8653 /* no error */
8654 }
8655
8656 return typeError;
8657}
8658
8659static void
8660uentry_checkDatatypeConformance (/*@notnull@*/ uentry old,
8661 /*@notnull@*/ uentry unew,
8662 bool mustConform, bool completeConform)
8663{
8664 if (ctype_isDefined (unew->info->datatype->type))
8665 {
8666 /*
8667 ** bool is hard coded here, since it is built into LCL.
8668 ** For now, we're stuck with LCL's types.
8669 */
8670
8671 if (ctype_isDirectBool (old->utype) &&
8672 cstring_equalLit (unew->uname, "bool"))
8673 {
8674 /* if (!context_getFlag (FLG_ABSTRACTBOOL))
8675 evs 2000-07-25: removed
8676 */
8677 unew->utype = ctype_bool;
8678 }
8679
8680 if (ctype_isUnknown (old->info->datatype->type))
8681 {
8682 old->info->datatype->type = unew->info->datatype->type;
8683 }
8684 else
8685 {
8686 DPRINTF (("Old: %s / New: %s",
8687 uentry_unparseFull (old),
8688 uentry_unparseFull (unew)));
8689 DPRINTF (("Types: %s / %s",
8690 ctype_unparse (old->info->datatype->type),
8691 ctype_unparse (unew->info->datatype->type)));
8692
8693 if (ctype_matchDef (old->info->datatype->type,
8694 unew->info->datatype->type))
8695 {
8696 ;
8697 }
8698 else
8699 {
8700 if (optgenerror
8701 (FLG_INCONDEFS,
8702 message
8703 ("Type %q %s with inconsistent type: %t",
8704 uentry_getName (unew),
8705 uentry_reDefDecl (old, unew),
8706 unew->info->datatype->type),
8707 uentry_whereDeclared (unew)))
8708 {
8709 uentry_showWhereLastExtra
8710 (old, cstring_copy (ctype_unparse (old->info->datatype->type)));
8711 }
8712
8713 old->info->datatype->type = unew->info->datatype->type;
8714 }
8715 }
8716 }
8717
8718 if (unew->info->datatype->abs != MAYBE)
8719 {
8720 if (ynm_isOff (old->info->datatype->abs)
8721 && ynm_isOn (unew->info->datatype->abs))
8722 {
8723 if (!ctype_isDirectBool (old->utype))
8724 {
8725 if (optgenerror
8726 (FLG_INCONDEFS,
8727 message
8728 ("Datatype %q inconsistently %rdeclared as abstract type",
8729 uentry_getName (unew),
8730 uentry_isDeclared (old)),
8731 uentry_whereDeclared (unew)))
8732 {
8733 uentry_showWhereLastPlain (old);
8734 }
8735 }
8736 }
8737 else if (ynm_isOn (old->info->datatype->abs)
8738 && ynm_isOff (unew->info->datatype->abs))
8739 {
8740 if (!ctype_isDirectBool (old->utype))
8741 {
8742 if (optgenerror
8743 (FLG_INCONDEFS,
8744 message
8745 ("Datatype %q inconsistently %rdeclared as concrete type",
8746 uentry_getName (unew),
8747 uentry_isDeclared (old)),
8748 uentry_whereDeclared (unew)))
8749 {
8750 uentry_showWhereLastPlain (old);
8751 }
8752 }
8753 }
8754 else
8755 {
8756 ;
8757 }
8758 }
8759 else
8760 {
8761 if (ynm_isOn (old->info->datatype->abs))
8762 {
8763 old->sref = unew->sref;
8764 unew->info->datatype->mut = old->info->datatype->mut;
8765
8766 if (completeConform
8767 && uentry_isReallySpecified (old))
8768 {
8769 if (optgenerror
8770 (FLG_NEEDSPEC,
8771 message
8772 ("Datatype %q specified as abstract, "
8773 "but abstract annotation not used in declaration",
8774 uentry_getName (unew)),
8775 uentry_whereDeclared (unew)))
8776 {
8777 uentry_showWhereLastPlain (old);
8778 }
8779 }
8780 }
8781 }
8782
8783 unew->info->datatype->abs = old->info->datatype->abs;
8784
8785 if (ynm_isMaybe (unew->info->datatype->mut))
8786 {
8787 if (completeConform && ynm_isOff (old->info->datatype->mut)
8788 && uentry_isReallySpecified (old))
8789 {
8790 if (optgenerror
8791 (FLG_NEEDSPEC,
8792 message
8793 ("Datatype %q specified as immutable, "
8794 "but immutable annotation not used in declaration",
8795 uentry_getName (unew)),
8796 uentry_whereDeclared (unew)))
8797 {
8798 uentry_showWhereLastPlain (old);
8799 }
8800 }
8801
8802 unew->info->datatype->mut = old->info->datatype->mut;
8803 }
8804 else if (ynm_isMaybe (old->info->datatype->mut))
8805 {
8806 old->info->datatype->mut = unew->info->datatype->mut;
8807 }
8808 else
8809 {
8810 if (ynm_isOn (old->info->datatype->abs))
8811 {
8812 if (ynm_isOn (old->info->datatype->mut) && ynm_isOff (unew->info->datatype->mut))
8813 {
8814 if (optgenerror
8815 (FLG_INCONDEFS,
8816 message ("Datatype %q inconsistently %rdeclared as immutable",
8817 uentry_getName (unew),
8818 uentry_isDeclared (old)),
8819 uentry_whereDeclared (unew)))
8820 {
8821 uentry_showWhereLastPlain (old);
8822 }
8823 }
8824 else
8825 {
8826 if (ynm_isOff (old->info->datatype->mut)
8827 && ynm_isOn (unew->info->datatype->mut))
8828 {
8829 if (optgenerror
8830 (FLG_INCONDEFS,
8831 message ("Datatype %q inconsistently %rdeclared as mutable",
8832 uentry_getName (unew),
8833 uentry_isDeclared (old)),
8834 uentry_whereDeclared (unew)))
8835 {
8836 uentry_showWhereLastPlain (old);
8837 }
8838 }
8839 }
8840 }
8841 old->info->datatype->mut = unew->info->datatype->mut;
8842 }
8843
8844 uentry_checkStateConformance (old, unew, mustConform, completeConform);
8845}
8846
8847static void
8848uentry_checkConstantConformance (/*@notnull@*/ uentry old,
8849 /*@notnull@*/ uentry unew,
8850 bool mustConform,
8851 /*@unused@*/ bool completeConform)
8852{
b9904f57 8853 multiVal oldval = uentry_getConstantValue (old);
8854 multiVal newval = uentry_getConstantValue (unew);
616915dd 8855
b9904f57 8856 if (multiVal_isDefined (oldval))
616915dd 8857 {
b9904f57 8858 if (multiVal_isDefined (newval))
616915dd 8859 {
b9904f57 8860 if (!multiVal_equiv (oldval, newval))
616915dd 8861 {
8862 if (mustConform
8863 && optgenerror
8864 (FLG_INCONDEFS,
8865 message ("%s %q %rdeclared with inconsistent value: %q",
8866 ekind_capName (unew->ukind),
8867 uentry_getName (unew),
8868 uentry_isDeclared (old),
b9904f57 8869 multiVal_unparse (newval)),
616915dd 8870 uentry_whereDeclared (unew)))
8871 {
b9904f57 8872 uentry_showWhereLastExtra (old, multiVal_unparse (oldval));
616915dd 8873 }
8874 }
8875
b9904f57 8876 uentry_setConstantValue (unew, multiVal_copy (oldval));
616915dd 8877 }
8878 else
8879 {
8880 ;
8881 }
8882 }
8883 else
8884 {
b9904f57 8885 uentry_setConstantValue (old, multiVal_copy (newval));
616915dd 8886 }
8887}
8888
8889static void
8890uentry_checkConformance (/*@unique@*/ /*@notnull@*/ uentry old,
8891 /*@notnull@*/ uentry unew, bool mustConform,
8892 bool completeConform)
8893{
8894 bool typeError = FALSE;
8895 bool fcnConformance = FALSE;
8896
8897 if (!ekind_equal (unew->ukind, old->ukind))
8898 {
8899 /*
8900 ** okay, only if one is a function and the other is
8901 ** a variable of type function.
8902 */
8903
8904 if (unew->ukind == KENUMCONST
8905 && old->ukind == KCONST)
8906 {
8907 old->ukind = KENUMCONST;
8908 goto nokinderror;
8909 }
8910
8911 if (unew->ukind == KFCN
8912 && old->ukind == KCONST
8913 && ctype_isUnknown (old->utype))
8914 {
8915 /*
8916 ** When a function is defined with an unparam macro
8917 */
8918
efd360a3 8919 uentry_updateInto (old, unew);
616915dd 8920 return;
8921 }
8922
8923 if (uentry_isExpandedMacro (old)
8924 && uentry_isEitherConstant (unew))
8925 {
efd360a3 8926 uentry_updateInto (old, unew);
616915dd 8927 return;
8928 }
8929
8930 if (uentry_isEndIter (unew))
8931 {
8932 if (ctype_isUnknown (old->utype))
8933 {
8934 if (!uentry_isSpecified (old)
8935 && uentry_isCodeDefined (unew))
8936 {
8937 if (!fileloc_withinLines (uentry_whereDefined (old),
8938 uentry_whereDeclared (unew), 2))
8939 { /* bogus! will give errors if there is too much whitespace */
8940 voptgenerror
8941 (FLG_SYNTAX,
8942 message
8943 ("Iterator finalized name %q does not match name in "
8944 "previous iter declaration (should be end_%q). This iter "
8945 "is declared at %q",
8946 uentry_getName (unew),
8947 uentry_getName (old),
8948 fileloc_unparse (uentry_whereDefined (old))),
8949 uentry_whereDeclared (old));
8950 }
8951 }
8952
efd360a3 8953 uentry_updateInto (old, unew);
616915dd 8954 return;
8955 }
8956 else
8957 {
8958 KindConformanceError (old, unew, mustConform);
8959 }
8960 }
8961
8962 if (uentry_isFunction (unew))
8963 {
8964 if (uentry_isVariable (old))
8965 {
8966 if (!ctype_isUnknown (old->utype))
8967 {
8968 if (ctype_isFunction (old->utype))
8969 {
8970 uentry_makeVarFunction (old);
8971 checkFunctionConformance (old, unew, mustConform,
8972 completeConform);
8973 fcnConformance = TRUE;
8974 }
8975 else
8976 {
8977 KindConformanceError (old, unew, mustConform);
8978 }
8979 }
8980 else
8981 {
8982 if (uentry_isExpandedMacro (old))
8983 {
8984 if (fileloc_isUndefined (unew->whereDefined))
8985 {
8986 unew->whereDefined = fileloc_update (unew->whereDefined,
8987 old->whereDefined);
8988 }
8989
efd360a3 8990 uentry_updateInto (old, unew);
616915dd 8991 old->used = unew->used = TRUE;
8992 return;
8993 }
8994 else
8995 {
8996 /* undeclared identifier */
8997 old->utype = unew->utype;
8998 uentry_makeVarFunction (old);
8999 checkFunctionConformance (old, unew, FALSE, FALSE);
9000 fcnConformance = TRUE;
9001 }
9002 }
9003 }
9004 else
9005 {
9006 KindConformanceError (old, unew, mustConform);
9007 }
9008 }
9009 else if (uentry_isFunction (old) && uentry_isVariable (unew))
9010 {
9011 if (!ctype_isUnknown (unew->utype))
9012 {
9013 if (ctype_isFunction (unew->utype))
9014 {
9015 uentry_makeVarFunction (unew);
9016 checkFunctionConformance (old, unew, mustConform, completeConform);
9017 fcnConformance = TRUE;
9018 }
9019 else
9020 {
9021 KindConformanceError (old, unew, mustConform);
9022 }
9023 }
9024 else
9025 {
9026 KindConformanceError (old, unew, mustConform);
9027 }
9028 }
9029 else
9030 {
9031 KindConformanceError (old, unew, mustConform);
9032 }
9033 }
9034 else
9035 {
9036 /*
9037 ** check parameter lists for functions
9038 ** (before type errors, to get better messages
9039 */
9040
9041 if (uentry_isFunction (old))
9042 {
9043 checkFunctionConformance (old, unew, mustConform, completeConform);
9044 fcnConformance = TRUE;
9045 }
9046 else
9047 {
9048 if (!ctype_isUndefined (old->utype))
9049 {
9050 typeError = checkTypeConformance (old, unew, mustConform);
9051 }
9052 }
9053 }
9054
9055 nokinderror:
9056
9057 if (uentry_isEitherConstant (old) && uentry_isEitherConstant (unew))
9058 {
9059 uentry_checkConstantConformance (old, unew, mustConform, completeConform);
9060 }
9061
9062 if (uentry_isDatatype (old) && uentry_isDatatype (unew))
9063 {
9064 DPRINTF (("Check datatype: %s / %s",
9065 uentry_unparseFull (old),
9066 uentry_unparseFull (unew)));
9067
9068 uentry_checkDatatypeConformance (old, unew, mustConform, completeConform);
9069 }
9070
9071 if (uentry_isVariable (old) && uentry_isVariable (unew))
9072 {
9073 if (!typeError &&
9074 !ctype_matchDef (old->utype, unew->utype))
9075 {
9076 if (optgenerror
9077 (FLG_INCONDEFS,
9078 message
9079 ("Variable %q %s with inconsistent type (arrays and pointers are "
9080 "not identical in variable declarations): %t",
9081 uentry_getName (unew),
9082 uentry_reDefDecl (old, unew),
9083 unew->utype),
9084 uentry_whereDeclared (unew)))
9085 {
9086 uentry_showWhereLast (old);
9087
9088 /*
9089 ** Avoid repeated errors.
9090 */
9091
9092 if (uentry_isCodeDefined (old) && uentry_isCodeDefined (unew))
9093 {
9094 old->whereDefined = fileloc_update (old->whereDefined,
9095 fileloc_undefined);
9096 }
9097
9098 typeError = TRUE;
9099 }
9100 }
9101
9102 checkVarConformance (old, unew, mustConform, completeConform);
9103 }
9104
9105 if (fcnConformance)
9106 {
9107 /* old->utype = unew->utype; */
9108 }
9109 else
9110 {
9111 if (ctype_isConj (old->utype))
9112 {
9113 if (ctype_isConj (unew->utype))
9114 {
9115 if (!ctype_sameAltTypes (old->utype, unew->utype))
9116 {
9117 if (optgenerror
9118 (FLG_INCONDEFS,
9119 message ("%s %q inconsistently %rdeclared with "
9120 "alternate types %s "
9121 "(types match, but alternates are not identical, "
9122 "so checking may not be correct)",
9123 ekind_capName (uentry_getKind (old)),
9124 uentry_getName (unew),
9125 uentry_isDeclared (old),
9126 ctype_unparse (unew->utype)),
9127 uentry_whereDeclared (unew)))
9128 {
9129 uentry_showWhereLastVal (old, ctype_unparse (old->utype));
9130 }
9131 else
9132 {
9133 old->utype = unew->utype;
9134 }
9135 }
9136 }
9137 }
9138 else
9139 {
9140 if (ctype_isUnknown (old->utype))
9141 {
9142 old->utype = unew->utype;
9143 }
9144 }
9145 }
9146
9147 if (unew->ukind == old->ukind)
9148 {
9149 sfree (unew->info);
9150 unew->info = uinfo_copy (old->info, old->ukind);
9151 }
9152
9153 sRef_storeState (old->sref);
9154 sRef_storeState (unew->sref);
9155}
9156
ba45e1e4 9157static void uentry_mergeConstraints (uentry spec, uentry def)
9158{
9159 if (uentry_isFunction (def))
9160 {
9161 DPRINTF (("Here: %s / %s",
9162 uentry_unparseFull (spec),
9163 uentry_unparseFull (def)));
efd360a3 9164 /* evans 2001-07-21 */
9165 llassert (uentry_isFunction (spec));
ba45e1e4 9166
9167 if (functionConstraint_isDefined (def->info->fcn->preconditions))
9168 {
9169 if (fileloc_isXHFile (uentry_whereLast (def)))
9170 {
9171 llassert (uentry_isFunction (spec));
9172 spec->info->fcn->preconditions = functionConstraint_conjoin (spec->info->fcn->preconditions,
9173 def->info->fcn->preconditions);
ba45e1e4 9174 }
ccf0a4a8 9175 else if (fileloc_equal (uentry_whereLast (spec), uentry_whereLast (def)))
9176 {
9177 ;
9178 }
ba45e1e4 9179 else
9180 {
ccf0a4a8 9181 /* Check if the constraints are identical */
9182
3120b462 9183 if (optgenerror
9184 (FLG_INCONDEFS,
9185 message
9186 ("Preconditions for %q redeclared. Dropping previous precondition: %q",
9187 uentry_getName (spec),
9188 functionConstraint_unparse (spec->info->fcn->preconditions)),
9189 uentry_whereLast (def)))
9190 {
9191 uentry_showWhereSpecified (spec);
9192 }
9193
9194 functionConstraint_free (spec->info->fcn->preconditions);
9195 spec->info->fcn->preconditions = def->info->fcn->preconditions;
ba45e1e4 9196 }
3120b462 9197
9198 def->info->fcn->preconditions = functionConstraint_undefined;
ba45e1e4 9199 }
9200
ba45e1e4 9201 if (functionConstraint_isDefined (def->info->fcn->postconditions))
9202 {
9203 if (fileloc_isXHFile (uentry_whereLast (def)))
9204 {
9205 llassert (uentry_isFunction (spec));
9206 DPRINTF (("Post: %s /++/ %s",
9207 functionConstraint_unparse (spec->info->fcn->postconditions),
9208 functionConstraint_unparse (def->info->fcn->postconditions)));
9209 spec->info->fcn->postconditions = functionConstraint_conjoin (spec->info->fcn->postconditions,
9210 def->info->fcn->postconditions);
9211 def->info->fcn->postconditions = functionConstraint_undefined;
9212 DPRINTF (("Conjoined post: %s", functionConstraint_unparse (spec->info->fcn->postconditions)));
9213 }
9214 else
9215 {
3120b462 9216 if (optgenerror
9217 (FLG_INCONDEFS,
9218 message
9219 ("Postconditions for %q redeclared. Dropping previous postcondition: %q",
9220 uentry_getName (spec),
9221 functionConstraint_unparse (spec->info->fcn->postconditions)),
9222 uentry_whereLast (def)))
9223 {
9224 uentry_showWhereSpecified (spec);
9225 }
9226
9227 functionConstraint_free (spec->info->fcn->postconditions);
9228 spec->info->fcn->postconditions = def->info->fcn->postconditions;
9229 def->info->fcn->postconditions = functionConstraint_undefined;
ba45e1e4 9230 }
9231 }
9232 }
9233}
9234
616915dd 9235/*
9236** modifies spec to reflect def, reports any inconsistencies
9237*/
9238
9239void
9240uentry_mergeEntries (uentry spec, /*@only@*/ uentry def)
9241{
9242 llassert (uentry_isValid (spec));
9243 llassert (uentry_isValid (def));
9244 llassert (cstring_equal (spec->uname, def->uname));
efd360a3 9245
9246 if (uentry_isFunction (def))
9247 {
9248 if (uentry_isConstant (spec))
9249 {
9250 llassert (ctype_isUnknown (spec->utype) || ctype_isFunction (spec->utype));
9251 uentry_makeConstantFunction (spec);
9252 }
9253 else
9254 {
9255 uentry_convertVarFunction (spec);
9256 }
9257
9258 llassert (uentry_isFunction (spec));
9259 }
28bf4b0b 9260
9261 DPRINTF (("Merge entries: %s / %s",
9262 uentry_unparseFull (spec),
9263 uentry_unparseFull (def)));
616915dd 9264
ba45e1e4 9265 uentry_mergeConstraints (spec, def);
9266
616915dd 9267 uentry_checkConformance (spec, def, TRUE,
9268 context_getFlag (FLG_NEEDSPEC));
9269
28bf4b0b 9270 DPRINTF (("Merge entries after conform: %s / %s",
9271 uentry_unparseFull (spec),
9272 uentry_unparseFull (def)));
9273
616915dd 9274 /* was: !(fileloc_isImport (uentry_whereSpecified (spec)))); */
9275
9276 /*
9277 ** okay, declarations conform. Propagate extra information.
9278 */
9279
9280 uentry_setDefined (spec, uentry_whereDefined (def));
9281 uentry_setDeclared (spec, uentry_whereDeclared (def));
9282
9283 if (uentry_isStatic (def))
9284 {
9285 if (optgenerror
9286 (FLG_INCONDEFS,
9287 message ("%s %q specified, but declared as static",
9288 ekind_capName (def->ukind),
9289 uentry_getName (def)),
9290 uentry_whereDeclared (def)))
9291 {
9292 uentry_showWhereSpecified (spec);
9293 }
9294 }
9295 else
9296 {
9297 spec->storageclass = def->storageclass;
9298 }
9299
9300 sRef_storeState (spec->sref);
9301
9302 spec->used = def->used || spec->used;
9303 spec->hasNameError |= def->hasNameError;
9304
9305 uentry_free (def);
9306
9307 if (!spec->hasNameError)
9308 {
9309 uentry_checkName (spec);
9310 }
9311 else
9312 {
9313 ;
9314 }
9315}
9316
9317/*
9318** Can't generate function redeclaration errors when the
9319** entries are merged, since we don't yet know if its the
9320** definition of the function.
9321*/
9322
9323void
9324uentry_clearDecl (void)
9325{
9326 posRedeclared = uentry_undefined;
9327 fileloc_free (posLoc);
9328 posLoc = fileloc_undefined;
9329}
9330
9331void
9332uentry_checkDecl (void)
9333{
f0171cff 9334 if (uentry_isValid (posRedeclared) && !fileloc_isXHFile (posLoc))
616915dd 9335 {
9336 llassert (fileloc_isDefined (posLoc));
9337
9338 if (uentry_isCodeDefined (posRedeclared))
9339 {
9340 if (optgenerror (FLG_REDECL,
9341 message ("%s %q declared after definition",
9342 ekind_capName (posRedeclared->ukind),
9343 uentry_getName (posRedeclared)),
9344 posLoc))
9345 {
9346 llgenindentmsg (message ("Definition of %q",
9347 uentry_getName (posRedeclared)),
9348 posRedeclared->whereDeclared);
9349 }
9350 }
9351 else
9352 {
9353 if (optgenerror (FLG_REDECL,
9354 message ("%s %q declared more than once",
9355 ekind_capName (posRedeclared->ukind),
9356 uentry_getName (posRedeclared)),
9357 posLoc))
9358 {
9359 llgenindentmsg (message ("Previous declaration of %q",
9360 uentry_getName (posRedeclared)),
9361 posRedeclared->whereDeclared);
9362 }
9363 }
9364 }
9365
9366 fileloc_free (posLoc);
9367 posLoc = fileloc_undefined;
9368 posRedeclared = uentry_undefined;
9369}
9370
9371/*
9372** Redefinition of old as unew.
9373** modifies old to reflect unew, reports any inconsistencies
9374*/
9375
9376void
9377uentry_mergeDefinition (uentry old, /*@only@*/ uentry unew)
9378{
d89a0c94 9379 fileloc olddef = uentry_whereDeclared (old);
616915dd 9380 fileloc unewdef = uentry_whereDeclared (unew);
9381 bool mustConform;
9382 bool wasForward;
28bf4b0b 9383
9384 DPRINTF (("uentry merge: %s / %s",
9385 uentry_unparseFull (old),
9386 uentry_unparseFull (unew)));
616915dd 9387
616915dd 9388 wasForward =
9389 fileloc_isUndefined (olddef)
efd360a3 9390 && fileloc_isDefined (uentry_whereDefined (old))
9391 && !uentry_isExpandedMacro (old);
616915dd 9392
9393 if (!context_getFlag (FLG_INCONDEFSLIB)
9394 && (fileloc_isLib (olddef) || fileloc_isImport (olddef)))
9395 {
9396 mustConform = FALSE;
9397 }
9398 else
9399 {
9400 mustConform = TRUE;
9401 }
9402
9403 llassert (uentry_isValid (old));
9404 llassert (uentry_isValid (unew));
9405 llassert (cstring_equal (old->uname, unew->uname));
9406
efd360a3 9407 if (uentry_isFunction (unew) && !uentry_isFunction (old))
9408 {
9409 if (uentry_isConstant (old))
9410 {
9411 llassert (ctype_isUnknown (old->utype) || ctype_isFunction (old->utype));
9412 uentry_makeConstantFunction (old);
9413 }
9414 else
9415 {
9416 uentry_convertVarFunction (old);
9417 }
9418
9419 llassert (uentry_isFunction (old));
9420 }
9421
9422 DPRINTF (("uentry merge: %s / %s",
9423 uentry_unparseFull (old),
9424 uentry_unparseFull (unew)));
9425
9426 if (uentry_isExtern (unew))
9427 {
9428 uentry_setUsed (old, unewdef);
9429 }
9430
616915dd 9431 /*
9432 ** should check old one was extern!
9433 */
9434
9435 if (uentry_isStatic (old))
9436 {
9437 if (!(uentry_isStatic (unew)))
9438 {
9439 if (optgenerror
9440 (FLG_SHADOW,
9441 message ("%s %q shadows static declaration",
9442 ekind_capName (unew->ukind),
9443 uentry_getName (unew)),
9444 unewdef))
9445 {
9446 uentry_showWhereLast (old);
9447 }
9448 }
9449 else
9450 {
9451 uentry_setDeclDef (old, unewdef);
9452 }
9453 }
9454 else if (uentry_isStatic (unew))
9455 {
9456 uentry_setDeclDef (old, unewdef);
9457 }
9458 else if (uentry_isExtern (old))
9459 {
9460 uentry_setDeclared (old, unewdef);
9461 }
9462 else
9463 {
d89a0c94 9464 if (!uentry_isExtern (unew)
9465 && !uentry_isForward (old)
616915dd 9466 && !fileloc_equal (olddef, unewdef)
9467 && !fileloc_isUndefined (olddef)
9468 && !fileloc_isUndefined (unewdef)
9469 && !fileloc_isBuiltin (olddef)
9470 && !fileloc_isBuiltin (unewdef)
9471 && !uentry_isYield (old)
9472 && !(fileloc_isLib (olddef) || fileloc_isImport (olddef)))
9473 {
9474 if (uentry_isVariable (old) || uentry_isVariable (unew))
9475 {
9476 ; /* will report redeclaration error later */
9477 }
9478 else
9479 {
9480 if (fileloc_isDefined (uentry_whereDefined (old)))
9481 {
9482 if (optgenerror
9483 (FLG_REDEF,
9484 message ("%s %q defined more than once",
9485 ekind_capName (unew->ukind),
9486 uentry_getName (unew)),
9487 uentry_whereLast (unew)))
9488 {
9489 llgenindentmsg
9490 (message ("Previous definition of %q",
9491 uentry_getName (old)),
9492 uentry_whereLast (old));
9493 }
9494 /*
9495 if (uentry_isDatatype (old) || uentry_isAnyTag (old))
9496 {
efd360a3 9497 uentry_updateInto (old, unew);
616915dd 9498 old->sref = sRef_saveCopy (old->sref);
9499 }
9500 */
9501 }
9502 }
9503 }
9504 else
9505 {
9506 if (fileloc_isLib (olddef)
9507 || fileloc_isUndefined (olddef)
9508 || fileloc_isImport (olddef))
9509 {
9510 if (uentry_isExtern (unew))
9511 {
9512 if (uentry_isExtern (old)
9513 || (fileloc_isDefined (uentry_whereDeclared (old))
9514 && (!fileloc_equal (uentry_whereDeclared (old),
9515 uentry_whereDefined (old)))))
9516 {
9517 if (optgenerror
9518 (FLG_REDECL,
9519 message ("%s %q declared more than once",
9520 ekind_capName (unew->ukind),
9521 uentry_getName (unew)),
9522 unew->whereDeclared))
9523 {
9524 llgenindentmsg
9525 (message ("Previous declaration of %q",
9526 uentry_getName (old)),
9527 old->whereDeclared);
9528 }
9529 }
9530
9531 uentry_setExtern (old);
9532 }
9533 else
9534 {
d89a0c94 9535 uentry_setDeclared (old, unewdef); /* evans 2001-07-23 was setDefined */
616915dd 9536 }
9537 }
9538 }
9539 }
9540
efd360a3 9541 DPRINTF (("uentry merge: %s / %s",
9542 uentry_unparseFull (old),
9543 uentry_unparseFull (unew)));
ba45e1e4 9544
efd360a3 9545 uentry_mergeConstraints (old, unew);
d89a0c94 9546 DPRINTF (("uentry merge: %s / %s",
9547 uentry_unparseFull (old),
9548 uentry_unparseFull (unew)));
9549
616915dd 9550 uentry_checkConformance (old, unew, mustConform, FALSE);
d89a0c94 9551 DPRINTF (("uentry merge: %s / %s",
9552 uentry_unparseFull (old),
9553 uentry_unparseFull (unew)));
616915dd 9554
9555 old->used = old->used || unew->used;
9556 old->uses = filelocList_append (old->uses, unew->uses);
9557 unew->uses = filelocList_undefined;
9558
9559 sRef_storeState (old->sref);
9560 sRef_storeState (unew->sref);
9561
9562 if (wasForward)
9563 {
9564 old->whereDefined = fileloc_update (old->whereDefined,
9565 fileloc_undefined);
9566 }
9567
d89a0c94 9568 DPRINTF (("here: %s", uentry_unparseFull (old)));
9569
616915dd 9570 /*
9571 ** No redeclaration errors for functions here, since we
9572 ** don't know if this is the definition of the function.
9573 */
9574
9575 if (fileloc_isUser (old->whereDeclared)
9576 && fileloc_isUser (unew->whereDeclared)
9577 && !fileloc_equal (old->whereDeclared, unew->whereDeclared)
9578 && !fileloc_isDefined (unew->whereDefined))
9579 {
9580 if (uentry_isFunction (old))
9581 {
9582 /*@-temptrans@*/ posRedeclared = old; /*@=temptrans@*/
9583 posLoc = fileloc_update (posLoc, unew->whereDeclared);
9584 }
9585 else
9586 {
9587 if (optgenerror (FLG_REDECL,
9588 message ("%s %q declared more than once",
9589 ekind_capName (unew->ukind),
9590 uentry_getName (unew)),
9591 unew->whereDeclared))
9592 {
9593 llgenindentmsg (message ("Previous declaration of %q",
9594 uentry_getName (old)),
9595 old->whereDeclared);
9596 }
9597 }
9598 }
9599
9600 if (fileloc_isUndefined (old->whereDefined))
9601 {
9602 old->whereDefined = fileloc_update (old->whereDefined, unew->whereDefined);
9603 }
9604 else
9605 {
9606 if (!context_processingMacros ()
9607 && fileloc_isUser (old->whereDefined)
9608 && fileloc_isUser (unew->whereDefined)
9609 && !fileloc_equal (old->whereDefined, unew->whereDefined))
9610 {
9611 if (uentry_isVariable (unew) || uentry_isFunction (unew))
9612 {
9613 if (uentry_isVariable (unew)
9614 && uentry_isExtern (unew))
9615 {
9616 if (optgenerror (FLG_REDECL,
9617 message ("%s %q declared after definition",
9618 ekind_capName (unew->ukind),
9619 uentry_getName (unew)),
9620 unew->whereDeclared))
9621 {
9622 llgenindentmsg (message ("Definition of %q",
9623 uentry_getName (old)),
9624 old->whereDefined);
9625 }
9626 }
9627 else
9628 {
9629 if (optgenerror (FLG_REDEF,
9630 message ("%s %q redefined",
9631 ekind_capName (unew->ukind),
9632 uentry_getName (unew)),
9633 unew->whereDefined))
9634 {
9635 llgenindentmsg (message ("Previous definition of %q",
9636 uentry_getName (old)),
9637 old->whereDefined);
9638 }
9639 }
9640 }
9641 }
9642 }
9643
9644 if (uentry_isExternal (unew))
9645 {
9646 old->whereDefined = fileloc_createExternal ();
9647 }
9648
9649 if (unew->hasNameError)
9650 {
9651 old->hasNameError = TRUE;
9652 }
9653
9654 uentry_free (unew);
9655
9656 if (!old->hasNameError)
9657 {
9658 uentry_checkName (old);
9659 }
9660
d89a0c94 9661 DPRINTF (("After: %s", uentry_unparseFull (old)));
616915dd 9662 llassert (!ctype_isUndefined (old->utype));
9663}
9664
9665void
9666uentry_copyState (uentry res, uentry other)
9667{
9668 llassert (uentry_isValid (res));
9669 llassert (uentry_isValid (other));
9670
9671 res->used = other->used;
9672
9673 res->info->var->kind = other->info->var->kind;
9674 res->info->var->defstate = other->info->var->defstate;
9675 res->info->var->nullstate = other->info->var->nullstate;
9676 res->info->var->checked = other->info->var->checked;
9677
9678 sRef_copyState (res->sref, other->sref);
9679}
9680
9681bool
9682uentry_sameKind (uentry u1, uentry u2)
9683{
9684 if (uentry_isValid (u1) && uentry_isValid (u2))
9685 {
9686 if (uentry_isVar (u1) && uentry_isVar (u2))
9687 {
9688 ctype c1 = u1->utype;
9689 ctype c2 = u2->utype;
9690
9691 if (ctype_isUnknown (c1) || ctype_isUnknown (c2)) return FALSE;
9692
9693 /*
9694 ** both functions, or both not functions
9695 */
9696
9697 return (bool_equal (ctype_isFunction (c1), ctype_isFunction (c2)));
9698 }
9699 else
9700 {
9701 return ((u1->ukind == u2->ukind));
9702 }
9703 }
9704
9705 return FALSE;
9706}
9707
efd360a3 9708static void uentry_updateInto (/*@unique@*/ uentry unew, uentry old)
616915dd 9709{
efd360a3 9710 ekind okind = unew->ukind;
616915dd 9711 llassert (uentry_isValid (unew));
9712 llassert (uentry_isValid (old));
9713
d89a0c94 9714 DPRINTF (("Update into: %s / %s", uentry_unparseFull (unew), uentry_unparseFull (old)));
9715
616915dd 9716 unew->ukind = old->ukind;
efd360a3 9717 llassert (cstring_equal (unew->uname, old->uname));
616915dd 9718 unew->utype = old->utype;
9719
efd360a3 9720 if (fileloc_isDefined (unew->whereSpecified)
9721 && !fileloc_isDefined (old->whereSpecified))
9722 {
9723 ; /* Keep the old value */
9724 }
9725 else
9726 {
9727 fileloc_free (unew->whereSpecified); /*@i523 why no error without this? */
9728 unew->whereSpecified = fileloc_copy (old->whereSpecified);
9729 }
9730
9731 if (fileloc_isDefined (unew->whereDefined)
9732 && !fileloc_isDefined (old->whereDefined))
9733 {
9734 ; /* Keep the old value */
9735 }
9736 else
9737 {
9738 fileloc_free (unew->whereDefined); /*@i523 why no error without this? */
9739 unew->whereDefined = fileloc_copy (old->whereDefined);
9740 }
9741
9742 if (fileloc_isDefined (unew->whereDeclared)
9743 && !fileloc_isDefined (old->whereDeclared))
9744 {
9745 ; /* Keep the old value */
9746 }
9747 else
9748 {
9749 fileloc_free (unew->whereDeclared); /*@i523 why no error without this? */
9750 unew->whereDeclared = fileloc_copy (old->whereDeclared);
9751 }
616915dd 9752
d89a0c94 9753 DPRINTF (("Update into: %s / %s", uentry_unparseFull (unew), uentry_unparseFull (old)));
9754
616915dd 9755 unew->sref = sRef_saveCopy (old->sref); /* Memory leak! */
9756 unew->used = old->used;
9757 unew->lset = FALSE;
9758 unew->isPrivate = old->isPrivate;
9759 unew->hasNameError = old->hasNameError;
efd360a3 9760 unew->uses = filelocList_append (unew->uses, old->uses);
9761 old->uses = filelocList_undefined;
616915dd 9762
9763 unew->storageclass = old->storageclass;
efd360a3 9764 uinfo_free (unew->info, okind);
616915dd 9765 unew->info = uinfo_copy (old->info, old->ukind);
9766}
9767
9768
9769uentry
9770uentry_copy (uentry e)
9771{
9772 if (uentry_isValid (e))
9773 {
9774 uentry enew = uentry_alloc ();
9775 DPRINTF (("copy: %s", uentry_unparseFull (e)));
efd360a3 9776 enew->ukind = e->ukind;
9777 enew->uname = cstring_copy (e->uname);
9778 enew->utype = e->utype;
9779
9780 enew->whereSpecified = fileloc_copy (e->whereSpecified);
9781 enew->whereDefined = fileloc_copy (e->whereDefined);
9782 enew->whereDeclared = fileloc_copy (e->whereDeclared);
9783
9784 enew->sref = sRef_saveCopy (e->sref); /* Memory leak! */
9785 enew->used = e->used;
9786 enew->lset = FALSE;
9787 enew->isPrivate = e->isPrivate;
9788 enew->hasNameError = e->hasNameError;
9789 enew->uses = filelocList_undefined;
9790
9791 enew->storageclass = e->storageclass;
9792 enew->info = uinfo_copy (e->info, e->ukind);
9793 enew->warn = warnClause_copy (e->warn);
9794
616915dd 9795 DPRINTF (("Here we are..."));
9796 DPRINTF (("original: %s", uentry_unparseFull (e)));
9797 DPRINTF (("copy: %s", uentry_unparse (enew)));
9798 DPRINTF (("copy: %s", uentry_unparseFull (enew)));
9799 return enew;
9800 }
9801 else
9802 {
9803 return uentry_undefined;
9804 }
9805}
9806
9807void
9808uentry_setState (uentry res, uentry other)
9809{
9810 llassert (uentry_isValid (res));
9811 llassert (uentry_isValid (other));
9812
9813 llassert (res->ukind == other->ukind);
9814 llassert (res->ukind == KVAR);
9815
9816 res->sref = sRef_saveCopy (other->sref);
9817 res->used = other->used;
9818 filelocList_free (res->uses);
9819 res->uses = other->uses;
9820 other->uses = filelocList_undefined;
9821 res->lset = other->lset;
9822}
9823
9824void
9825uentry_mergeUses (uentry res, uentry other)
9826{
9827 llassert (uentry_isValid (res));
9828 llassert (uentry_isValid (other));
9829
9830 res->used = other->used || res->used;
9831 res->lset = other->lset || res->lset;
9832 res->uses = filelocList_append (res->uses, other->uses);
9833 other->uses = filelocList_undefined;
9834}
9835
9836
9837/*
9838** This is a really ugly routine.
9839**
9840** gack...fix this one day.
9841*/
9842
9843/*
9844** flip == TRUE
9845** >> res is the false branch, other is the true branch (or continuation)
9846** flip == FALSE
9847** >> res is the true branch, other is the false branch (or continutation)
9848**
9849** opt == TRUE if,
9850**
9851** <other>
9852** if <res> ;
9853**
9854** References not effected by res are propagated from other.
9855*/
9856
9857static void
9858 branchStateError (/*@notnull@*/ uentry res, /*@notnull@*/ uentry other,
9859 bool flip, clause cl, fileloc loc)
9860{
9861 if (optgenerror
9862 (FLG_BRANCHSTATE,
9863 message ("%s %q is %s %s, but %s %s.",
9864 ekind_capName (res->ukind), uentry_getName (res),
9865 sRef_stateVerb (res->sref), clause_nameFlip (cl, flip),
9866 sRef_stateAltVerb (res->sref), clause_nameFlip (cl, !flip)),
9867 loc))
9868 {
9869 if (sRef_isDead (res->sref))
9870 {
9871 sRef_showStateInfo (res->sref);
9872 }
9873 else if (sRef_isKept (res->sref))
9874 {
9875 sRef_showAliasInfo (res->sref);
9876 }
9877 else /* dependent */
9878 {
9879 sRef_showAliasInfo (res->sref);
9880 sRef_showAliasInfo (other->sref);
9881 }
9882
9883 sRef_setAliasKind (res->sref, AK_ERROR, fileloc_undefined);
9884 }
9885}
9886
9887static bool incompatibleStates (sRef rs, sRef os)
9888{
9889 alkind rk = sRef_getAliasKind (rs);
9890 alkind ok = sRef_getAliasKind (os);
9891
9892 if (alkind_isError (rk) || alkind_isError (ok))
9893 {
9894 return FALSE;
9895 }
9896 else
9897 {
9898 return ((sRef_isDead (rs)
9899 || (alkind_isKept (rk) && !alkind_isKept (ok))
9900 || (alkind_isDependent (rk)
9901 && !alkind_isDependent (ok) && !alkind_isTemp (ok)))
9902 && (sRef_isAllocated (os) || sRef_isStateDefined (os)));
9903 }
9904}
9905
9906static void
9907 branchStateAltError (/*@notnull@*/ uentry res,
9908 /*@notnull@*/ uentry other, bool flip,
9909 clause cl, fileloc loc)
9910{
9911 if (optgenerror
9912 (FLG_BRANCHSTATE,
9913 message ("%s %q is %s %s, but %s %s.",
9914 ekind_capName (res->ukind), uentry_getName (res),
9915 sRef_stateVerb (other->sref), clause_nameFlip (cl, flip),
9916 sRef_stateAltVerb (other->sref), clause_nameFlip (cl, !flip)),
9917 loc))
9918 {
9919 if (sRef_isDead (other->sref))
9920 {
9921 sRef_showStateInfo (other->sref);
9922 }
9923 else /* kept */
9924 {
9925 sRef_showAliasInfo (other->sref);
9926 }
9927
9928 sRef_setAliasKind (res->sref, AK_ERROR, fileloc_undefined);
9929 sRef_setDefinedComplete (res->sref, fileloc_undefined);
9930
9931 sRef_setAliasKind (other->sref, AK_ERROR, fileloc_undefined);
9932 sRef_setDefinedComplete (other->sref, fileloc_undefined);
9933 }
9934}
9935
28bf4b0b 9936/*
9937** A reference is relevant for certain checks, only if it
9938** is not definitely null on this path (but not declared
9939** to always be null.)
9940*/
9941
9942static bool uentry_relevantReference (sRef sr, bool flip)
616915dd 9943{
28bf4b0b 9944 if (sRef_isKept (sr) || sRef_isDependent (sr))
9945 {
9946 return FALSE;
9947 }
9948 else
9949 {
9950 if (flip)
9951 {
9952 return !sRef_definitelyNullContext (sr);
9953 }
9954 else
9955 {
9956 return !sRef_definitelyNullAltContext (sr);
9957 }
9958 }
616915dd 9959}
616915dd 9960
28bf4b0b 9961static void
9962uentry_mergeAliasStates (uentry res, uentry other, fileloc loc,
9963 bool mustReturn, bool flip, bool opt,
9964 clause cl)
9965{
9966 DPRINTF (("Merge alias states: %s / %s",
9967 uentry_unparseFull (res),
9968 uentry_unparseFull (other)));
616915dd 9969
9970 if (sRef_isValid (res->sref))
9971 {
9972 if (!mustReturn)
9973 {
28bf4b0b 9974 DPRINTF (("1"));
616915dd 9975 if (incompatibleStates (res->sref, other->sref))
9976 {
28bf4b0b 9977 DPRINTF (("2"));
9978
616915dd 9979 if (sRef_isThroughArrayFetch (res->sref)
9980 && !context_getFlag (FLG_STRICTBRANCHSTATE))
9981 {
9982 if (sRef_isKept (res->sref) || sRef_isKept (other->sref))
9983 {
9984 sRef_maybeKill (res->sref, loc);
9985 }
9986 else if (sRef_isPossiblyDead (other->sref))
9987 {
9988 sRef_maybeKill (res->sref, loc);
9989 }
9990 else
9991 {
9992 ;
9993 }
9994 }
9995 else
9996 {
28bf4b0b 9997 if (uentry_relevantReference (other->sref, flip))
616915dd 9998 {
28bf4b0b 9999 DPRINTF (("4"));
616915dd 10000 if (sRef_isLocalParamVar (res->sref)
10001 && (sRef_isLocalState (other->sref)
10002 || sRef_isDependent (other->sref)))
10003 {
10004 if (sRef_isDependent (res->sref))
10005 {
10006 sRef_setDependent (other->sref, loc);
10007 }
10008 else
10009 {
10010 sRef_setDefState (res->sref, SS_UNUSEABLE, loc);
10011 }
10012 }
10013 else
10014 {
10015 branchStateError (res, other, flip, cl, loc);
10016 }
10017 }
10018 }
10019
10020 if (sRef_isKept (res->sref))
10021 {
10022 sRef_setKept (other->sref, loc);
10023 }
10024 }
10025 else
10026 {
10027 if (incompatibleStates (other->sref, res->sref))
10028 {
28bf4b0b 10029 if (uentry_relevantReference (res->sref, !flip))
616915dd 10030 {
10031 if (sRef_isLocalParamVar (res->sref)
10032 && (sRef_isDependent (res->sref)
10033 || sRef_isLocalState (res->sref)))
10034 {
10035 if (sRef_isDependent (other->sref))
10036 {
10037 sRef_setDependent (res->sref, loc);
10038 }
10039 else
10040 {
10041 sRef_setDefState (res->sref, SS_UNUSEABLE, loc);
10042 }
10043 }
10044 else
10045 {
10046 if (sRef_isParam (other->sref))
10047 {
10048 /*
10049 ** If the local variable associated
10050 ** with the param has the correct state,
10051 ** its okay.
10052 ** (e.g., free (s); s = new(); ...
10053 */
28bf4b0b 10054
616915dd 10055 uentry uvar = usymtab_lookupSafe (other->uname);
28bf4b0b 10056
616915dd 10057 if (uentry_isValid (uvar)
10058 && ((sRef_isDead (other->sref)
10059 && sRef_isOnly (uvar->sref))
10060 || (sRef_isDependent (other->sref)
10061 && sRef_isOwned (uvar->sref))))
10062 {
10063 /* no error */
10064 }
10065 else
10066 {
10067 branchStateAltError (res, other,
10068 flip, cl, loc);
10069 }
10070 }
10071 else
10072 {
28bf4b0b 10073 DPRINTF (("Here: %s / %s",
10074 uentry_unparseFull (res),
10075 uentry_unparseFull (other)));
10076
616915dd 10077 branchStateAltError (res, other,
10078 flip, cl, loc);
10079 }
10080 }
10081 }
10082 }
28bf4b0b 10083
616915dd 10084 if (sRef_isKept (other->sref))
10085 {
10086 sRef_setKept (res->sref, loc);
10087 }
10088 }
10089
10090 if (opt)
10091 {
10092 DPRINTF (("Merge opt..."));
10093 sRef_mergeOptState (res->sref, other->sref, cl, loc);
10094 DPRINTF (("Done!"));
10095 }
10096 else
10097 {
10098 sRef_mergeState (res->sref, other->sref, cl, loc);
10099 }
10100 }
10101 else
10102 {
10103 if (sRef_isModified (other->sref))
10104 {
10105 sRef_setModified (res->sref);
10106 }
10107 }
28bf4b0b 10108 }
10109}
616915dd 10110
28bf4b0b 10111static void
10112uentry_mergeValueStates (uentry res, uentry other, fileloc loc)
10113{
10114 valueTable rvalues;
10115 valueTable ovalues;
10116
10117 DPRINTF (("Merge values: %s / %s", sRef_unparseFull (res->sref), sRef_unparseFull (other->sref)));
10118
10119 rvalues = sRef_getValueTable (res->sref);
10120 ovalues = sRef_getValueTable (other->sref);
10121
10122 if (valueTable_isUndefined (ovalues))
10123 {
10124 DPRINTF (("No value table: %s", sRef_unparseFull (other->sref)));
10125 ;
10126 }
10127 else if (valueTable_isUndefined (rvalues))
10128 {
10129 /*
10130 ** Copy values from other
10131 */
10132
10133 /*@i$@#@*/
10134 DPRINTF (("Has value table: %s", sRef_unparseFull (other->sref)));
10135 DPRINTF (("No value table: %s", sRef_unparseFull (res->sref)));
10136 ;
10137 }
10138 else
10139 {
10140 valueTable_elements (ovalues, fkey, fval) {
10141 stateValue tval;
10142 metaStateInfo minfo;
10143 stateCombinationTable sctable;
10144 cstring msg;
10145 int nval;
10146
10147 tval = valueTable_lookup (rvalues, fkey);
10148
10149 DPRINTF (("Merge value: %s / %s X %s", fkey,
10150 stateValue_unparse (fval), stateValue_unparse (tval)));
10151
10152 minfo = context_lookupMetaStateInfo (fkey);
10153 llassert (stateValue_isDefined (tval));
10154
10155 if (metaStateInfo_isUndefined (minfo) || !stateValue_isDefined (tval))
10156 {
10157 DPRINTF (("Cannot find meta state for: %s", fkey));
10158 BADBRANCH;
10159 }
10160 else
10161 {
10162 llassert (metaStateInfo_isDefined (minfo));
10163
10164 if (stateValue_isError (fval)
10165 || sRef_definitelyNullContext (res->sref))
10166 {
10167 sRef_setMetaStateValueComplete (res->sref,
10168 fkey, stateValue_getValue (fval),
10169 loc);
10170 DPRINTF (("Setting res: %s", sRef_unparseFull (res->sref)));
10171 }
10172 else if (stateValue_isError (tval)
10173 || sRef_definitelyNullAltContext (other->sref))
10174 {
10175 DPRINTF (("Other branch is definitely null!"));
10176 }
10177 else
10178 {
10179 DPRINTF (("Check: %s / %s / %s / %s", fkey,
10180 metaStateInfo_unparse (minfo),
10181 stateValue_unparse (fval),
10182 stateValue_unparse (tval)));
10183
10184 DPRINTF (("state values: %d / %d",
10185 stateValue_getValue (fval), stateValue_getValue (tval)));
10186
10187 sctable = metaStateInfo_getMergeTable (minfo);
10188
10189 DPRINTF (("Merge table: %s",
10190 stateCombinationTable_unparse (sctable)));
10191
10192 msg = cstring_undefined;
10193
10194 nval = stateCombinationTable_lookup (sctable,
10195 stateValue_getValue (fval),
10196 stateValue_getValue (tval),
10197 &msg);
10198
10199 DPRINTF (("nval: %d / %d / %d", nval,
10200 stateValue_getValue (fval), stateValue_getValue (tval)));
10201
10202 if (cstring_isDefined (msg))
10203 {
10204 /*@i32 print extra info for assignments@*/
10205
10206 if (uentry_isGlobalMarker (res))
10207 {
10208 if (optgenerror
10209 (FLG_STATEMERGE,
10210 message
10211 ("Control branches merge with incompatible global states (%s and %s): %s",
10212 metaStateInfo_unparseValue (minfo, stateValue_getValue (fval)),
10213 metaStateInfo_unparseValue (minfo, stateValue_getValue (tval)),
10214 msg),
10215 loc))
10216 {
10217 sRef_showMetaStateInfo (res->sref, fkey);
10218 sRef_showMetaStateInfo (other->sref, fkey);
10219 }
10220 }
10221 else
10222 {
10223 if (optgenerror
10224 (FLG_STATEMERGE,
10225 message
10226 ("Control branches merge with incompatible states for %q (%s and %s): %s",
10227 uentry_getName (res),
10228 metaStateInfo_unparseValue (minfo, stateValue_getValue (fval)),
10229 metaStateInfo_unparseValue (minfo, stateValue_getValue (tval)),
10230 msg),
10231 loc))
10232 {
10233 sRef_showMetaStateInfo (res->sref, fkey);
10234 sRef_showMetaStateInfo (other->sref, fkey);
10235 DPRINTF (("Res: %s", sRef_unparseFull (res->sref)));
10236 DPRINTF (("Other: %s", sRef_unparseFull (other->sref)));
10237 DPRINTF (("Null: %s / %s",
10238 bool_unparse (usymtab_isDefinitelyNull (res->sref)),
10239 bool_unparse (usymtab_isDefinitelyNull (other->sref))));
10240
10241 }
10242 }
10243 }
10244
10245 if (nval == stateValue_getValue (fval)
10246 && nval != stateValue_getValue (tval))
10247 {
10248 loc = stateValue_getLoc (fval);
10249 }
10250 else if (nval == stateValue_getValue (tval)
10251 && nval != stateValue_getValue (fval))
10252 {
10253 loc = stateValue_getLoc (tval);
10254 }
10255 else
10256 {
10257 ;
10258 }
10259
10260 if (stateValue_getValue (sRef_getMetaStateValue (res->sref, fkey)) == nval
10261 && nval == stateValue_getValue (fval)
10262 && nval == stateValue_getValue (tval))
10263 {
10264 ;
10265 }
10266 else
10267 {
10268 sRef_setMetaStateValueComplete (res->sref, fkey, nval, loc);
10269 }
10270 }
10271 }
10272 } end_valueTable_elements ;
10273 }
10274}
10275
10276
10277static void
10278uentry_mergeSetStates (uentry res, uentry other, /*@unused@*/ fileloc loc,
10279 bool flip, clause cl)
10280{
10281 if (cl == DOWHILECLAUSE)
10282 {
10283 res->used = other->used || res->used;
10284 res->lset = other->lset || res->lset;
10285 res->uses = filelocList_append (res->uses, other->uses);
10286 other->uses = filelocList_undefined;
10287 }
10288 else
10289 {
10290 if (sRef_isMacroParamRef (res->sref)
10291 && !uentry_isSefParam (other)
10292 && !uentry_isSefParam (res))
616915dd 10293 {
28bf4b0b 10294 bool hasError = FALSE;
10295
10296 if (bool_equal (res->used, other->used))
616915dd 10297 {
28bf4b0b 10298 res->used = other->used;
10299 }
10300 else
10301 {
10302 if (other->used && !flip)
616915dd 10303 {
28bf4b0b 10304 hasError =
10305 optgenerror
10306 (FLG_MACROPARAMS,
10307 message ("Macro parameter %q used in true clause, "
10308 "but not in false clause",
10309 uentry_getName (res)),
10310 uentry_whereDeclared (res));
616915dd 10311 }
10312 else
28bf4b0b 10313 {
10314 hasError =
10315 optgenerror
10316 (FLG_MACROPARAMS,
10317 message ("Macro parameter %q used in false clause, "
10318 "but not in true clause",
10319 uentry_getName (res)),
10320 uentry_whereDeclared (res));
10321 }
10322 res->used = TRUE;
10323
10324 if (hasError)
616915dd 10325 {
28bf4b0b 10326 /* make it sef now, prevent more errors */
10327 res->info->var->kind = VKREFSEFPARAM;
616915dd 10328 }
10329 }
28bf4b0b 10330 }
10331 else
10332 {
10333 res->used = other->used || res->used;
10334 res->lset = other->lset || res->lset;
10335 res->uses = filelocList_append (res->uses, other->uses);
10336 other->uses = filelocList_undefined;
616915dd 10337 }
10338 }
10339}
10340
28bf4b0b 10341void
10342uentry_mergeState (uentry res, uentry other, fileloc loc,
10343 bool mustReturn, bool flip, bool opt,
10344 clause cl)
10345{
10346 llassert (uentry_isValid (res));
10347 llassert (uentry_isValid (other));
10348
10349 llassert (res->ukind == other->ukind);
10350 llassert (res->ukind == KVAR);
10351
10352 DPRINTF (("Merge state: %s / %s", uentry_unparseFull (res),
10353 uentry_unparseFull (other)));
10354
10355 uentry_mergeAliasStates (res, other, loc, mustReturn, flip, opt, cl);
10356 uentry_mergeValueStates (res, other, loc);
10357 uentry_mergeSetStates (res, other, loc, flip, cl);
10358}
10359
616915dd 10360void uentry_setUsed (uentry e, fileloc loc)
10361{
10362 static bool firstTime = TRUE;
10363 static bool showUses = FALSE;
10364 static bool exportLocal = FALSE;
10365
28bf4b0b 10366 DPRINTF (("Used: %s / %s", uentry_unparse (e), fileloc_unparse (loc)));
10367
616915dd 10368 if (firstTime)
10369 {
10370 /* need to track uses is FLG_SHOWUSES or FLG_EXPORTLOCAL is true */
10371
10372 showUses = context_getFlag (FLG_SHOWUSES);
10373 exportLocal = context_maybeSet (FLG_EXPORTLOCAL);
10374
10375 firstTime = FALSE;
10376 }
10377
10378 if (uentry_isValid (e))
10379 {
10380 int dp;
28bf4b0b 10381
10382 if (warnClause_isDefined (e->warn))
10383 {
10384 flagSpec flg = warnClause_getFlag (e->warn);
10385 cstring msg;
10386
10387 if (warnClause_hasMessage (e->warn))
10388 {
10389 msg = cstring_copy (warnClause_getMessage (e->warn));
10390 }
10391 else
10392 {
10393 msg = message ("Use of possibly dangerous %s",
10394 uentry_ekindNameLC (e));
10395 }
10396
10397 vfsgenerror (flg,
10398 message ("%q: %q", msg, uentry_getName (e)),
10399 loc);
10400 }
10401
616915dd 10402 if (sRef_isMacroParamRef (e->sref))
10403 {
10404 if (uentry_isYield (e) || uentry_isSefParam (e))
10405 {
10406 ;
10407 }
10408 else
10409 {
10410 if (context_inConditional ())
10411 {
10412 if (optgenerror
10413 (FLG_MACROPARAMS,
10414 message ("Macro parameter %q used in conditionally "
10415 "executed code (may or may not be "
10416 "evaluated exactly once)",
10417 uentry_getName (e)),
10418 loc))
10419 {
10420 e->info->var->kind = VKREFSEFPARAM;
10421 }
10422 }
10423 else
10424 {
10425 if ((e)->used)
10426 {
10427 if (optgenerror
10428 (FLG_MACROPARAMS,
10429 message ("Macro parameter %q used more than once",
10430 uentry_getName (e)),
10431 uentry_whereDeclared (e)))
10432 {
10433 e->info->var->kind = VKREFSEFPARAM;
10434 }
10435 }
10436 }
10437 }
10438 }
10439
10440 if ((dp = uentry_directParamNo (e)) >= 0)
10441 {
10442 uentry_setUsed (usymtab_getParam (dp), loc);
10443 }
10444
10445 e->used = TRUE;
28bf4b0b 10446
616915dd 10447 if (!sRef_isLocalVar (e->sref))
10448 {
10449 if (showUses)
10450 {
10451 e->uses = filelocList_add (e->uses, fileloc_copy (loc));
10452 }
10453 else
10454 {
10455 if (exportLocal)
10456 {
10457 if (context_inMacro ())
10458 {
10459 e->uses = filelocList_addUndefined (e->uses);
10460 }
10461 else
10462 {
10463 e->uses = filelocList_addDifferentFile
10464 (e->uses,
10465 uentry_whereDeclared (e),
10466 loc);
10467 }
10468 }
10469 }
10470 }
10471 }
10472}
10473
10474bool uentry_isReturned (uentry u)
10475{
10476 return (uentry_isValid (u) && uentry_isVar (u)
10477 && (u->info->var->kind == VKRETPARAM
10478 || u->info->var->kind == VKSEFRETPARAM));
10479}
10480
10481/*@exposed@*/ sRef uentry_returnedRef (uentry u, exprNodeList args)
10482{
10483 llassert (uentry_isRealFunction (u));
10484
28bf4b0b 10485 if (ctype_isFunction (u->utype) && sRef_isStateSpecial (uentry_getSref (u)))
616915dd 10486 {
28bf4b0b 10487 stateClauseList clauses = uentry_getStateClauseList (u);
10488 sRef res = sRef_makeNew (ctype_getReturnType (u->utype), u->sref, u->uname);
616915dd 10489
28bf4b0b 10490 DPRINTF (("Returned: %s", sRef_unparseFull (res)));
616915dd 10491 sRef_setAllocated (res, g_currentloc);
10492
28bf4b0b 10493 DPRINTF (("ensures clause: %s / %s", uentry_unparse (u),
10494 stateClauseList_unparse (clauses)));
616915dd 10495
ccf0a4a8 10496 /*
10497 ** This should be in exprNode_reflectEnsuresClause
10498 */
10499
28bf4b0b 10500 stateClauseList_postElements (clauses, cl)
10501 {
10502 if (!stateClause_isGlobal (cl))
616915dd 10503 {
28bf4b0b 10504 sRefSet refs = stateClause_getRefs (cl);
10505 sRefMod modf = stateClause_getEffectFunction (cl);
10506
10507 sRefSet_elements (refs, el)
616915dd 10508 {
28bf4b0b 10509 sRef base = sRef_getRootBase (el);
10510
10511 if (sRef_isResult (base))
616915dd 10512 {
28bf4b0b 10513 if (modf != NULL)
10514 {
10515 sRef sr = sRef_fixBase (el, res);
10516 modf (sr, g_currentloc);
10517 }
616915dd 10518 }
28bf4b0b 10519 else
10520 {
10521 ;
10522 }
10523 } end_sRefSet_elements ;
10524 }
10525 } end_stateClauseList_postElements ;
ccf0a4a8 10526
616915dd 10527 return res;
10528 }
10529 else
10530 {
10531 uentryList params;
10532 alkind ak;
10533 sRefSet prefs = sRefSet_new ();
10534 sRef res = sRef_undefined;
10535 int paramno = 0;
10536
10537 params = uentry_getParams (u);
10538
10539 uentryList_elements (params, current)
10540 {
10541 if (uentry_isReturned (current))
10542 {
10543 if (exprNodeList_size (args) >= paramno)
10544 {
10545 exprNode ecur = exprNodeList_nth (args, paramno);
10546 sRef tref = exprNode_getSref (ecur);
10547
28bf4b0b 10548 DPRINTF (("Returned reference: %s", sRef_unparseFull (tref)));
10549
616915dd 10550 if (sRef_isValid (tref))
10551 {
10552 sRef tcref = sRef_copy (tref);
10553
28bf4b0b 10554 usymtab_addForceMustAlias (tcref, tref); /* evans 2001-05-27 */
10555
616915dd 10556 if (sRef_isDead (tcref))
10557 {
10558 sRef_setDefined (tcref, g_currentloc);
10559 sRef_setOnly (tcref, g_currentloc);
10560 }
10561
10562 if (sRef_isRefCounted (tcref))
10563 {
10564 /* could be a new ref now (but only if its returned) */
10565 sRef_setAliasKindComplete (tcref, AK_ERROR, g_currentloc);
10566 }
10567
10568 sRef_makeSafe (tcref);
616915dd 10569 prefs = sRefSet_insert (prefs, tcref);
10570 }
10571 }
10572 }
10573
10574 paramno++;
10575 } end_uentryList_elements ;
10576
10577 if (sRefSet_size (prefs) > 0)
10578 {
10579 nstate n = sRef_getNullState (u->sref);
10580
10581 if (sRefSet_size (prefs) == 1)
10582 {
10583 res = sRefSet_choose (prefs);
10584 }
10585 else
10586 {
28bf4b0b 10587 /* should this ever happen? */ /*@i534 evans 2001-05-27 */
616915dd 10588 res = sRefSet_mergeIntoOne (prefs);
10589 }
10590
10591 if (nstate_isKnown (n))
10592 {
10593 sRef_setNullState (res, n, g_currentloc);
10594 }
10595 }
10596 else
10597 {
10598 if (ctype_isFunction (u->utype))
10599 {
28bf4b0b 10600 DPRINTF (("Making new from %s -->", uentry_unparseFull (u)));
10601 res = sRef_makeNew (ctype_getReturnType (u->utype), u->sref, u->uname);
616915dd 10602 }
10603 else
10604 {
10605 res = sRef_makeNew (ctype_unknown, u->sref, u->uname);
10606 }
10607
10608 if (sRef_isRefCounted (res))
10609 {
10610 sRef_setAliasKind (res, AK_NEWREF, g_currentloc);
10611 }
10612 }
10613
28bf4b0b 10614
616915dd 10615 if (sRef_getNullState (res) == NS_ABSNULL)
10616 {
10617 ctype ct = ctype_realType (u->utype);
10618
10619 if (ctype_isAbstract (ct))
10620 {
10621 sRef_setNotNull (res, g_currentloc);
10622 }
10623 else
10624 {
10625 if (ctype_isUser (ct))
10626 {
10627 sRef_setStateFromUentry (res, usymtab_getTypeEntry (ctype_typeId (ct)));
10628 }
10629 else
10630 {
10631 sRef_setNotNull (res, g_currentloc);
10632 }
10633 }
10634 }
10635
10636 if (sRef_isRefCounted (res))
10637 {
10638 sRef_setAliasKind (res, AK_NEWREF, g_currentloc);
10639 }
10640 else if (sRef_isKillRef (res))
10641 {
10642 sRef_setAliasKind (res, AK_REFCOUNTED, g_currentloc);
10643 }
10644 else
10645 {
10646 ;
10647 }
10648
10649 ak = sRef_getAliasKind (res);
10650
10651 if (alkind_isImplicit (ak))
10652 {
10653 sRef_setAliasKind (res,
10654 alkind_fixImplicit (ak),
10655 g_currentloc);
10656 }
10657
10658 sRefSet_free (prefs);
10659
28bf4b0b 10660 DPRINTF (("Returns ref: %s", sRef_unparseFull (res)));
616915dd 10661 return res;
10662 }
10663}
10664
10665static bool uentry_isRefCounted (uentry ue)
10666{
10667 ctype ct = uentry_getType (ue);
10668
10669 if (ctype_isFunction (ct))
10670 {
28bf4b0b 10671 return (ctype_isRefCounted (ctype_getReturnType (ct)));
616915dd 10672 }
10673 else
10674 {
10675 return (ctype_isRefCounted (ct));
10676 }
10677}
10678
10679/*
10680** old was declared yield in the specification.
10681** new is declared in the iter implementation.
10682*/
10683
10684void uentry_checkYieldParam (uentry old, uentry unew)
10685{
10686 cstring name;
10687
10688 llassert (uentry_isVariable (old));
10689 llassert (uentry_isVariable (unew));
10690
10691 unew->info->var->kind = VKYIELDPARAM;
10692 (void) checkTypeConformance (old, unew, TRUE);
10693 checkVarConformance (old, unew, TRUE, FALSE);
10694
10695 /* get rid of param marker */
10696
10697 name = uentry_getName (unew);
10698 cstring_free (unew->uname);
10699 unew->uname = name;
10700 unew->info->var->kind = VKREFYIELDPARAM;
10701
10702 uentry_setUsed (old, fileloc_undefined);
10703 uentry_setUsed (unew, fileloc_undefined);
10704}
10705
10706/*@observer@*/ cstring
10707uentry_ekindName (uentry ue)
10708{
10709 if (uentry_isValid (ue))
10710 {
10711 switch (ue->ukind)
10712 {
10713 case KINVALID:
10714 return cstring_makeLiteralTemp ("<Error: invalid uentry>");
10715 case KDATATYPE:
10716 return cstring_makeLiteralTemp ("Datatype");
10717 case KENUMCONST:
10718 return cstring_makeLiteralTemp ("Enum member");
10719 case KCONST:
10720 return cstring_makeLiteralTemp ("Constant");
10721 case KVAR:
10722 if (uentry_isParam (ue))
10723 {
10724 return cstring_makeLiteralTemp ("Parameter");
10725 }
10726 else if (uentry_isExpandedMacro (ue))
10727 {
10728 return cstring_makeLiteralTemp ("Expanded macro");
10729 }
10730 else
10731 {
10732 return cstring_makeLiteralTemp ("Variable");
10733 }
10734 case KFCN:
10735 return cstring_makeLiteralTemp ("Function");
10736 case KITER:
10737 return cstring_makeLiteralTemp ("Iterator");
10738 case KENDITER:
10739 return cstring_makeLiteralTemp ("Iterator finalizer");
10740 case KSTRUCTTAG:
10741 return cstring_makeLiteralTemp ("Struct tag");
10742 case KUNIONTAG:
10743 return cstring_makeLiteralTemp ("Union tag");
10744 case KENUMTAG:
10745 return cstring_makeLiteralTemp ("Enum tag");
10746 case KELIPSMARKER:
10747 return cstring_makeLiteralTemp ("Optional parameters");
10748 }
10749 }
10750 else
10751 {
10752 return cstring_makeLiteralTemp ("<Undefined>");
10753 }
10754
10755 BADEXIT;
10756}
10757
28bf4b0b 10758/*@observer@*/ cstring
10759uentry_ekindNameLC (uentry ue)
10760{
10761 if (uentry_isValid (ue))
10762 {
10763 switch (ue->ukind)
10764 {
10765 case KINVALID:
10766 return cstring_makeLiteralTemp ("<error: invalid uentry>");
10767 case KDATATYPE:
10768 return cstring_makeLiteralTemp ("datatype");
10769 case KENUMCONST:
10770 return cstring_makeLiteralTemp ("enum member");
10771 case KCONST:
10772 return cstring_makeLiteralTemp ("constant");
10773 case KVAR:
10774 if (uentry_isParam (ue))
10775 {
10776 return cstring_makeLiteralTemp ("parameter");
10777 }
10778 else if (uentry_isExpandedMacro (ue))
10779 {
10780 return cstring_makeLiteralTemp ("expanded macro");
10781 }
10782 else
10783 {
10784 return cstring_makeLiteralTemp ("variable");
10785 }
10786 case KFCN:
10787 return cstring_makeLiteralTemp ("function");
10788 case KITER:
10789 return cstring_makeLiteralTemp ("iterator");
10790 case KENDITER:
10791 return cstring_makeLiteralTemp ("iterator finalizer");
10792 case KSTRUCTTAG:
10793 return cstring_makeLiteralTemp ("struct tag");
10794 case KUNIONTAG:
10795 return cstring_makeLiteralTemp ("union tag");
10796 case KENUMTAG:
10797 return cstring_makeLiteralTemp ("enum tag");
10798 case KELIPSMARKER:
10799 return cstring_makeLiteralTemp ("optional parameters");
10800 }
10801 }
10802 else
10803 {
10804 return cstring_makeLiteralTemp ("<Undefined>");
10805 }
10806
10807 BADEXIT;
10808}
10809
616915dd 10810void uentry_setHasNameError (uentry ue)
10811{
10812 llassert (uentry_isValid (ue));
10813
10814 ue->hasNameError = TRUE;
10815}
10816
10817void uentry_checkName (uentry ue)
10818{
28bf4b0b 10819 DPRINTF (("Checking name: %s / %s / %s", uentry_unparse (ue),
10820 uentry_observeRealName (ue),
10821 bool_unparse (uentry_isVisibleExternally (ue))));
10822
616915dd 10823 if (uentry_isValid (ue)
28bf4b0b 10824 && !context_inXHFile ()
10825 && uentry_hasName (ue)
616915dd 10826 && !uentry_isElipsisMarker (ue)
10827 && context_getFlag (FLG_NAMECHECKS)
10828 && !ue->hasNameError
10829 && !uentry_isEndIter (ue)
10830 && !fileloc_isBuiltin (uentry_whereLast (ue))
10831 && (uentry_isExpandedMacro (ue) || !uentry_isForward (ue)))
28bf4b0b 10832 {
10833 DPRINTF (("Here..."));
10834
616915dd 10835 if (uentry_isPriv (ue))
10836 {
10837 ; /* any checks here? */
10838 }
10839 else if (fileloc_isExternal (uentry_whereDefined (ue)))
10840 {
10841 ; /* no errors for externals */
10842 }
10843 else
10844 {
10845 int scope;
10846
10847 if (uentry_isExpandedMacro (ue))
10848 {
10849 scope = globScope;
10850 }
10851 else
10852 {
10853 if (uentry_isExpandedMacro (ue))
10854 {
10855 scope = fileScope;
10856 }
10857 else if (uentry_isVariable (ue))
10858 {
10859 sRef sr = uentry_getSref (ue);
10860
10861 if (sRef_isValid (sr))
10862 {
10863 scope = sRef_getScope (sr);
10864 }
10865 else
10866 {
10867 scope = fileScope;
10868 }
10869 }
10870 else if (uentry_isFunction (ue)
10871 || uentry_isIter (ue)
10872 || uentry_isEndIter (ue)
10873 || uentry_isConstant (ue))
10874 {
10875 scope = uentry_isStatic (ue) ? fileScope : globScope;
10876 }
10877 else /* datatypes, etc. must be global */
10878 {
10879 scope = globScope;
10880 }
10881
10882 usymtab_checkDistinctName (ue, scope);
10883 }
28bf4b0b 10884
616915dd 10885 if (context_getFlag (FLG_CPPNAMES))
10886 {
28bf4b0b 10887 checkCppName (ue);
616915dd 10888 }
10889
10890 if (scope == globScope)
10891 {
28bf4b0b 10892 checkExternalName (ue);
616915dd 10893 }
28bf4b0b 10894 else if (scope == fileScope)
10895 {
10896 checkFileScopeName (ue);
10897 }
10898 else
616915dd 10899 {
10900 checkLocalName (ue);
616915dd 10901 }
10902
616915dd 10903 checkPrefix (ue);
28bf4b0b 10904 checkAnsiName (ue);
616915dd 10905 }
10906 }
10907}
10908
7ebcc5bb 10909/*@exposed@*/ uentry uentry_makeUnrecognized (cstring c, /*@only@*/ fileloc loc)
616915dd 10910{
10911 uentry ue;
10912 fileloc tloc;
10913
10914 /*
7ebcc5bb 10915 ** Can't but unrecognized ids in macros in global scope, because srefs will break!
10916 */
10917
616915dd 10918 if (!context_inMacro ())
10919 {
10920 sRef_setGlobalScopeSafe ();
10921 }
10922
10923 ue = uentry_makeVariable (c, ctype_unknown, loc, FALSE);
10924 uentry_setUsed (ue, loc);
10925
10926 tloc = fileloc_createExternal ();
10927 uentry_setDefined (ue, tloc);
10928 fileloc_free (tloc);
10929 uentry_setHasNameError (ue);
10930
10931 if (context_getFlag (FLG_REPEATUNRECOG))
10932 {
10933 uentry_markOwned (ue);
10934 }
10935 else
10936 {
10937 ue = usymtab_supReturnFileEntry (ue);
10938 }
10939
10940 if (!context_inMacro ())
10941 {
10942 sRef_clearGlobalScopeSafe ();
10943 }
10944
10945 return ue;
10946}
10947
28bf4b0b 10948uentry uentry_makeGlobalMarker ()
10949{
10950 uentry ue;
10951 fileloc tloc;
10952
10953 llassert (sRef_inGlobalScope ());
10954
10955 ue = uentry_makeVariableAux
10956 (GLOBAL_MARKER_NAME, ctype_unknown, fileloc_undefined,
10957 sRef_makeGlobalMarker (),
10958 FALSE, VKNORMAL);
10959
10960 tloc = fileloc_createExternal ();
10961 uentry_setUsed (ue, tloc);
10962 uentry_setDefined (ue, tloc);
10963 fileloc_free (tloc);
10964 uentry_setHasNameError (ue);
10965
10966 return ue;
10967}
10968
10969
10970bool uentry_isGlobalMarker (uentry ue)
10971{
10972 return (uentry_isValid (ue)
10973 && (cstring_equal (uentry_rawName (ue), GLOBAL_MARKER_NAME)));
10974}
10975
616915dd 10976/* new start modifications */
28bf4b0b 10977
616915dd 10978/* start modifications */
10979/*
10980requires: p_e is defined, is a ptr/array variable
10981modifies: p_e
10982effects: sets the state of the variable
10983*/
10984
28bf4b0b 10985
616915dd 10986void uentry_setPossiblyNullTerminatedState (uentry p_e) {
b7b694d6 10987 /*@access sRef@*/ /*i523 shouldn't do this! */
616915dd 10988 if( uentry_isValid(p_e) ) {
10989 if( p_e->info != NULL) {
10990 if( p_e->info->var != NULL) {
10991 p_e->info->var->bufinfo->bufstate = BB_POSSIBLYNULLTERMINATED;
10992 p_e->sref->bufinfo.bufstate = BB_POSSIBLYNULLTERMINATED;
10993 return;
b7b694d6 10994 }
10995 }
10996 }
10997 /*@noaccess sRef@*/
616915dd 10998
10999 fprintf(stderr, "uentry:Error in setPossiblyNullTerminatedState\n");
11000}
11001
11002/*
11003requires: p_e is defined, is a ptr/array variable
11004modifies: p_e
11005effects: sets the size of the buffer
11006*/
11007
11008void uentry_setNullTerminatedState (uentry p_e) {
11009 if( uentry_isValid(p_e) ) {
11010 if( p_e->info != NULL) {
11011 if( p_e->info->var != NULL) {
11012 p_e->info->var->bufinfo->bufstate = BB_NULLTERMINATED;
b7b694d6 11013 /*@access sRef@*/ /*@i523 bad!*/
616915dd 11014 p_e->sref->bufinfo.bufstate = BB_NULLTERMINATED;
b7b694d6 11015 /*@noaccess sRef@*/
616915dd 11016 return;
b7b694d6 11017 }
11018 }
11019 }
616915dd 11020
11021 fprintf(stderr, "uentry:Error in setNullTerminatedState\n");
11022}
11023
616915dd 11024/*
11025requires: p_e is defined, is a ptr/array variable
11026modifies: p_e
11027effects: sets the size of the buffer
11028*/
11029
11030void uentry_setSize (uentry p_e, int size) {
11031 if( uentry_isValid(p_e) ) {
11032 if( p_e->info != NULL) {
11033 if( p_e->info->var != NULL) {
11034 p_e->info->var->bufinfo->size = size;
b7b694d6 11035 /*@access sRef@*/ /*@i523 bad!*/
616915dd 11036 p_e->sref->bufinfo.size = size;
b7b694d6 11037 /*@noaccess sRef@*/
616915dd 11038 return;
b7b694d6 11039 }
11040 }
11041 }
616915dd 11042
11043 fprintf(stderr, "uentry:Error in setSize\n");
11044}
11045
11046
11047/*
11048requires: p_e is defined, is a ptr/array variable
11049modifies: p_e
11050effects: sets the length of the buffer
11051*/
11052
b7b694d6 11053void uentry_setLen (uentry p_e, int len) {
616915dd 11054 if( uentry_isValid(p_e) ) {
11055 if( p_e->info != NULL) {
11056 if( p_e->info->var != NULL) {
11057 p_e->info->var->bufinfo->len = len;
b7b694d6 11058 /*@access sRef@*/ /*@i523 bad!*/
616915dd 11059 p_e->sref->bufinfo.len = len;
b7b694d6 11060 /*@noaccess sRef@*/
616915dd 11061 return;
b7b694d6 11062 }
11063 }
11064 }
11065
616915dd 11066 fprintf(stderr, "uentry:Error in setLen\n");
11067}
b7b694d6 11068
616915dd 11069/*@=type*/
ba45e1e4 11070
11071bool uentry_hasMetaStateEnsures (uentry e)
11072{
11073 if (uentry_isValid (e) && uentry_isFunction (e))
11074 {
11075 return functionConstraint_hasMetaStateConstraint (e->info->fcn->postconditions);
11076 }
11077 else
11078 {
11079 return FALSE;
11080 }
11081}
11082
ccf0a4a8 11083metaStateConstraintList uentry_getMetaStateEnsures (uentry e)
ba45e1e4 11084{
ccf0a4a8 11085 llassert (uentry_isValid (e) && uentry_isFunction (e));
11086 return functionConstraint_getMetaStateConstraints (e->info->fcn->postconditions);
ba45e1e4 11087}
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