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Fixed the readme file based on the information on the web page.
[splint.git] / src / context.c
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616915dd 1/*
11db3170 2** Splint - annotation-assisted static program checker
77d37419 3** Copyright (C) 1994-2002 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**
1b8ae690 20** For information on splint: splint@cs.virginia.edu
21** To report a bug: splint-bug@cs.virginia.edu
11db3170 22** For more information: http://www.splint.org
616915dd 23*/
24/*
25** context.c
26*/
27/*
28 * Modified by Herbert 04/19/97:
29 * - added include for new header portab.h containing OS dependent stuff.
30 * - changed occurrances of '/' as path delimiters to macro from portab.h
31 * - changed the handling of the tmp directory -- will no longer always be
32 * ".", if possible, environment variables "TMP" or, if not set, "TMP",
33 * or, if not set "." will be used.
34 */
35
1b8ae690 36# include "splintMacros.nf"
616915dd 37# include "llbasic.h"
38
39# ifndef NOLCL
40# include "usymtab_interface.h"
41# endif
42
43# include "exprChecks.h"
44# include "filelocStack.h"
45# include "fileIdList.h"
46# include "llmain.h"
47# include "intSet.h"
48# include "osd.h"
49# include "portab.h"
50
51extern /*@external@*/ int yydebug;
28bf4b0b 52extern /*@external@*/ int mtdebug;
616915dd 53
54typedef struct
55{
56 cstring file;
57 typeIdSet daccess ;
58} maccesst;
59
60typedef enum {
28bf4b0b 61 CX_ERROR,
62
616915dd 63 CX_GLOBAL, CX_INNER,
d9a28762 64 CX_FUNCTION, CX_FCNDECLARATION,
616915dd 65 CX_MACROFCN, CX_MACROCONST, CX_UNKNOWNMACRO,
7ebcc5bb 66 CX_ITERDEF, CX_ITEREND,
67 CX_OLDSTYLESCOPE, /* Parsing old-style parameter declarations */
28bf4b0b 68 CX_LCL, CX_LCLLIB, CX_MT
616915dd 69} kcontext;
70
28bf4b0b 71static struct
616915dd 72{
73 int linesprocessed;
74 int speclinesprocessed;
75
76 flagMarkerList markers;
77
78 /*
79 ** used to record state where a macro must match a function name
80 ** (i.e., no params were listed in the macro definition
81 */
82
83 bool macroMissingParams BOOLBITS;
84 bool preprocessing BOOLBITS;
85 bool incommandline BOOLBITS;
86 bool insuppressregion BOOLBITS;
87 bool inDerivedFile BOOLBITS;
88 bool instandardlib BOOLBITS;
89 bool inimport BOOLBITS;
90 bool inheader BOOLBITS;
91 bool inmacrocache BOOLBITS;
92 bool protectVars BOOLBITS;
93 bool neednl BOOLBITS;
94 bool showfunction BOOLBITS;
95 bool savedFlags BOOLBITS;
96 bool justpopped BOOLBITS;
97 bool anyExports BOOLBITS;
d9a28762 98 bool inFunctionHeader BOOLBITS;
616915dd 99
100 flagcode library;
101
102 ynm isNullGuarded;
103 fileloc saveloc;
104 fileloc pushloc;
105
106 clauseStack clauses;
107 clause inclause;
108
109 int numerrors;
110
111 filelocStack locstack;
112 fileTable ftab;
113 cstring msgAnnote;
114 /*@observer@*/ sRef aliasAnnote;
115 /*@observer@*/ sRef aliasAnnoteAls;
116 messageLog msgLog;
117
118 macrocache mc;
119 /*@observer@*/ sRefSet mods;
120
121 /* file access types */
122 typeIdSet facct;
123
124 /* local access types (this function) */
125 typeIdSet acct;
126
127 /* no access types (@noaccess) */
128 typeIdSet nacct;
129
130 /*@observer@*/ globSet globs;
131 /*@only@*/ globSet globs_used;
132
133 int nmods;
134 int maxmods;
135 /*@reldef@*/ maccesst *moduleaccess; /* Not defined is nmods == 0. */
136
137 kcontext kind;
138
139 ctype boolType;
140
141 bool flags[NUMFLAGS];
142 bool saveflags[NUMFLAGS];
143 bool setGlobally[NUMFLAGS];
144 bool setLocally[NUMFLAGS];
145
146 int values[NUMVALUEFLAGS];
147 int counters[NUMVALUEFLAGS];
148
149 o_cstring strings[NUMSTRINGFLAGS];
28bf4b0b 150 sRefSetList modrecs; /*@i32 ???? what is this for? */
616915dd 151
28bf4b0b 152 metaStateTable stateTable; /* User-defined state information. */
153 annotationTable annotTable; /* User-defined annotations table. */
b7e84605 154 union u_cont
616915dd 155 {
156 bool glob;
157 int cdepth;
158 /*@dependent@*/ /*@exposed@*/ uentry fcn;
159 } cont;
b7e84605 160
161 kcontext savekind;
162 union u_cont savecont;
616915dd 163} gc;
164
165static /*@exposed@*/ cstring context_exposeString (flagcode p_flag) ;
166static void context_restoreFlagSettings (void) /*@modifies gc@*/ ;
167static void context_saveFlagSettings (void) /*@modifies gc@*/ ;
168static void context_exitClauseAux (exprNode p_pred, exprNode p_tbranch)
169 /*@modifies gc@*/ ;
170static void context_exitClauseSimp (void) /*@modifies gc@*/ ;
171static void context_exitClausePlain (void) /*@modifies gc@*/ ;
172static void context_setJustPopped (void) /*@modifies gc.justpopped@*/ ;
173static void context_setValue (flagcode p_flag, int p_val) /*@modifies gc.flags@*/ ;
990ec868 174static void context_setFlag (flagcode p_f, bool p_b)
616915dd 175 /*@modifies gc.flags@*/ ;
176
177static void
178 context_setFlagAux (flagcode p_f, bool p_b, bool p_inFile, bool p_isRestore)
179 /*@modifies gc.flags@*/ ;
180
181static void context_restoreFlag (flagcode p_f) /*@modifies gc.flags@*/ ;
182
183/*@+enumindex@*/
184
185cstring context_unparseFlagMarkers ()
186{
187 return (flagMarkerList_unparse (gc.markers));
188}
189
190void context_setPreprocessing (void)
191{
192 llassert (!gc.preprocessing);
193 gc.preprocessing = TRUE;
194}
195
196void context_clearPreprocessing (void)
197{
198 llassert (gc.preprocessing);
199 gc.preprocessing = FALSE;
200}
201
202bool context_isPreprocessing (void)
203{
204 return gc.preprocessing;
205}
206
990ec868 207bool context_loadingLibrary (void)
208{
209 return (fileloc_isLib (g_currentloc));
210}
211
28bf4b0b 212bool context_inXHFile (void)
213{
214 return (fileloc_isXHFile (g_currentloc));
215}
216
616915dd 217void context_setInCommandLine (void)
218{
219 llassert (!gc.incommandline);
220 gc.incommandline = TRUE;
221}
222
223void context_clearInCommandLine (void)
224{
225 llassert (gc.incommandline);
226 gc.incommandline = FALSE;
227}
228
229bool context_isInCommandLine (void)
230{
231 return gc.incommandline;
232}
233
234static
235void pushClause (clause c) /*@modifies gc.clauses, gc.inclause@*/
236{
237 gc.inclause = c;
238 clauseStack_push (gc.clauses, c);
239
240 if (clause_isConditional (c)
241 && context_getFlag (FLG_CONTROLNESTDEPTH))
242 {
243 int maxdepth = context_getValue (FLG_CONTROLNESTDEPTH);
244 int depth = clauseStack_controlDepth (gc.clauses);
245
246 if (depth == maxdepth + 1)
247 {
248 voptgenerror
249 (FLG_CONTROLNESTDEPTH,
250 message ("Maximum control nesting depth "
251 "(%d) exceeded",
252 maxdepth),
253 g_currentloc);
254 }
255 }
256}
257
258static
259clause topClause (clauseStack s) /*@*/
260{
261 if (clauseStack_isEmpty (s)) return NOCLAUSE;
262 return ((clause) clauseStack_top (s));
263}
264
265void
266context_addMacroCache (/*@only@*/ cstring def)
267{
28bf4b0b 268 DPRINTF (("macro cache: %s", def));
269 macrocache_addEntry (gc.mc, fileloc_copy (g_currentloc), def);
616915dd 270}
271
272void
273context_addComment (/*@only@*/ cstring def)
274{
28bf4b0b 275 DPRINTF (("macro comment: %s", def));
276 macrocache_addComment (gc.mc, fileloc_copy (g_currentloc), def);
616915dd 277}
278
279/*
280** returns TRUE is fl is in ignore region, or region where -code
281**
282** the logic is fuzzy...
283*/
284
285static bool
286context_inSuppressFlagZone (fileloc fl, flagcode code)
287{
288 ynm ret = flagMarkerList_suppressError (gc.markers, code, fl);
289 bool res = FALSE;
290
291 if (ynm_isMaybe (ret))
292 {
293 /*
294 ** whas is dis?
295 */
296
297 if (gc.savedFlags)
298 {
299 res = !gc.saveflags[code];
300 }
301 else
302 {
303 res = !context_getFlag (code);
304 }
305 }
306 else
307 {
308 res = ynm_toBoolStrict (ret);
309 }
310
311 return res;
312}
313
314static bool
315context_suppressSystemMsg (fileloc fl)
316{
317 if (context_getFlag (FLG_SYSTEMDIRERRORS))
318 {
319 return FALSE;
320 }
321 else
322 {
323 return (fileloc_isSystemFile (fl));
324 }
325}
326
327bool
328context_suppressFlagMsg (flagcode flag, fileloc fl)
329{
330 if (context_suppressSystemMsg (fl))
331 {
332 return TRUE;
333 }
334
60eced23 335 DPRINTF (("Checking suppress: %s / %s", fileloc_unparse (fl), fileloc_unparse (g_currentloc)));
336
616915dd 337 /* want same object compare here */
338
339 if (fileloc_equal (fl, g_currentloc) || gc.inDerivedFile)
340 {
60eced23 341 DPRINTF (("In derived file: %s", bool_unparse (gc.inDerivedFile)));
342
616915dd 343 return (!context_getFlag (flag)
344 || context_inSuppressRegion ()
345 || context_inSuppressZone (fl)
60eced23 346 || (/*@!@@#@ gc.inDerivedFile && */ context_inSuppressFlagZone (fl, flag)));
616915dd 347 }
348 else
349 {
28bf4b0b 350 return (context_inSuppressFlagZone (fl, flag));
616915dd 351 }
352}
353
354bool
355context_suppressNotFlagMsg (flagcode flag, fileloc fl)
356{
357
358 if (context_suppressSystemMsg (fl))
359 {
360 return TRUE;
361 }
362
363 /*@access fileloc@*/
364 if (fl == g_currentloc)
365 /*@noaccess fileloc@*/
366 {
367 return (context_getFlag (flag) || context_inSuppressRegion ());
368 }
369 else
370 {
371 /* for now... */
372 return (context_getFlag (flag) || context_inSuppressRegion ());
373 }
374}
375
376bool
377context_inSuppressZone (fileloc fl)
378{
379 if (context_suppressSystemMsg (fl))
380 {
381 return TRUE;
382 }
383
384 return (flagMarkerList_inIgnore (gc.markers, fl));
385}
386
387bool
388context_inSuppressRegion (void)
389{
390 return (gc.insuppressregion);
391}
392
393void
394context_enterSuppressRegion (void)
395{
396 if (gc.insuppressregion)
397 {
398 gc.insuppressregion = FALSE; /* get this msg! */
399 llmsg (message
400 ("%q: New ignore errors region entered while in ignore errors region",
401 fileloc_unparse (g_currentloc)));
402 }
403
404 gc.insuppressregion = TRUE;
405 flagMarkerList_add (gc.markers, flagMarker_createIgnoreOn (g_currentloc));
406}
407
408static void
409context_addFlagMarker (flagcode code, ynm set)
410{
411 flagMarkerList_add (gc.markers,
412 flagMarker_createLocalSet (code, set, g_currentloc));
413}
414
415void
416context_enterSuppressLine (int count)
417{
418 fileloc nextline = fileloc_copy (g_currentloc);
419
420 flagMarkerList_add (gc.markers,
421 flagMarker_createIgnoreCount (count, g_currentloc));
422
423 fileloc_nextLine (nextline);
424 flagMarkerList_add (gc.markers,
425 flagMarker_createIgnoreOff (nextline));
426 fileloc_free (nextline);
427}
428
429void context_checkSuppressCounts (void)
430{
431 if (context_getFlag (FLG_SUPCOUNTS))
432 {
433 flagMarkerList_checkSuppressCounts (gc.markers);
434 }
435}
436
437void context_incLineno (void)
438{
439 gc.linesprocessed++;
440 incLine ();
441}
442
443void
444context_exitSuppressRegion (void)
445{
446 if (!gc.insuppressregion)
447 {
448 llerrorlit (FLG_SYNTAX,
449 "End ignore errors in region while not ignoring errors");
450 }
451
452 gc.insuppressregion = FALSE;
453 flagMarkerList_add (gc.markers, flagMarker_createIgnoreOff (g_currentloc));
454}
455
28bf4b0b 456void
457context_enterMTfile (void)
458{
459 gc.kind = CX_MT;
460}
461
462void
463context_exitMTfile (void)
464{
465 llassert (gc.kind == CX_MT);
466 gc.kind = CX_GLOBAL;
467}
468
616915dd 469# ifndef NOLCL
470void
471context_enterLCLfile (void)
472{
473 gc.kind = CX_LCL;
474 gc.facct = typeIdSet_emptySet ();
475}
476# endif
477
478static void
479addModuleAccess (/*@only@*/ cstring fname, typeIdSet mods)
480{
481 int i;
482
483 for (i = 0; i < gc.nmods; i++)
484 {
485 if (cstring_equal (gc.moduleaccess[i].file, fname))
486 {
487 gc.moduleaccess[i].daccess = typeIdSet_union (gc.moduleaccess[i].daccess, mods);
488 cstring_free (fname);
489 return;
490 }
491 }
492
493 if (gc.nmods == gc.maxmods)
494 {
495 maccesst *oldmods;
496
497 gc.maxmods = gc.maxmods + DEFAULTMAXMODS;
498 oldmods = gc.moduleaccess;
499
500 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
501
502 for (i = 0; i < gc.nmods; i++)
503 {
504 gc.moduleaccess[i] = oldmods[i];
505 }
506
507 sfree (oldmods);
508 }
509
510 gc.moduleaccess[gc.nmods].file = fname;
511 gc.moduleaccess[gc.nmods].daccess = mods;
512
513 gc.nmods++;
514}
515
516static void
517insertModuleAccess (cstring fname, typeId t)
518{
519 int i;
520
521 for (i = 0; i < gc.nmods; i++)
522 {
523 if (cstring_equal (gc.moduleaccess[i].file, fname))
524 {
525 gc.moduleaccess[i].daccess = typeIdSet_insert (gc.moduleaccess[i].daccess, t);
526 break;
527 }
528 }
529
530 addModuleAccess (cstring_copy (fname), typeIdSet_single (t));
531}
532
533# ifndef NOLCL
534void
535context_exitLCLfile (void)
536{
537 if (gc.kind != CX_LCLLIB)
538 {
28bf4b0b 539 cstring lclname =
540 fileLib_withoutExtension (fileName (currentFile ()), LCL_EXTENSION);
616915dd 541
28bf4b0b 542 addModuleAccess (fileLib_removePath (lclname), gc.facct);
543 cstring_free (lclname);
616915dd 544 }
545
546 gc.kind = CX_LCL;
547 gc.kind = CX_GLOBAL;
548 gc.facct = typeIdSet_emptySet ();
549}
550# endif
551
552void
553context_dumpModuleAccess (FILE *fout)
554{
555 int i = 0;
556
557 for (i = 0; i < gc.nmods; i++)
558 {
559 cstring td = typeIdSet_dump (gc.moduleaccess[i].daccess);
560
561 fprintf (fout, "%s#%s@\n",
562 cstring_toCharsSafe (gc.moduleaccess[i].file),
563 cstring_toCharsSafe (td));
564
565 cstring_free (td);
566 }
567}
568
569bool context_usingPosixLibrary ()
570{
571 return (gc.library == FLG_POSIXLIB
572 || gc.library == FLG_POSIXSTRICTLIB
573 || gc.library == FLG_UNIXLIB
574 || gc.library == FLG_UNIXSTRICTLIB);
575}
576
577bool context_usingAnsiLibrary ()
578{
579 return (gc.library != FLG_NOLIB);
580}
581
582flagcode context_getLibrary ()
583{
584 return gc.library;
585}
586
587void context_setLibrary (flagcode code)
588{
589 gc.library = code;
590}
591
28bf4b0b 592/*@observer@*/ cstring context_selectedLibrary ()
616915dd 593{
594 switch (gc.library)
595 {
596 case FLG_STRICTLIB:
28bf4b0b 597 return cstring_makeLiteralTemp (LLSTRICTLIBS_NAME);
616915dd 598 case FLG_POSIXLIB:
28bf4b0b 599 return cstring_makeLiteralTemp (LLPOSIXLIBS_NAME);
616915dd 600 case FLG_POSIXSTRICTLIB:
28bf4b0b 601 return cstring_makeLiteralTemp (LLPOSIXSTRICTLIBS_NAME);
616915dd 602 case FLG_UNIXLIB:
28bf4b0b 603 return cstring_makeLiteralTemp (LLUNIXLIBS_NAME);
616915dd 604 case FLG_UNIXSTRICTLIB:
28bf4b0b 605 return cstring_makeLiteralTemp (LLUNIXSTRICTLIBS_NAME);
616915dd 606 case FLG_ANSILIB:
28bf4b0b 607 return cstring_makeLiteralTemp (LLSTDLIBS_NAME);
616915dd 608 BADDEFAULT;
609 }
610}
611
612
613void
614context_loadModuleAccess (FILE *in)
615{
616 char *s = mstring_create (MAX_DUMP_LINE_LENGTH);
617 char *lasts = s;
618 char *name = mstring_create (MAX_NAME_LENGTH);
619 char *oname = name;
620# ifndef NOFREE
621 char *os = s;
622# endif
623
28bf4b0b 624 while ((reader_readLine (in, s, MAX_DUMP_LINE_LENGTH) != NULL )
616915dd 625 && *s == ';')
626 {
627 ;
628 }
629
630 while (s != NULL && *s != ';' && *s != '\0')
631 {
632 name = oname;
633
634 while (*s != '#' && *s != '\0')
635 {
636 *name++ = *s++;
637 }
638
639 *name = '\0';
640
641 if (*s != '#')
642 {
643 llcontbug (message ("context_loadModuleAccess: bad library line: %s\n",
644 cstring_fromChars (s)));
645 break;
646 }
647
648 s++;
649
650 addModuleAccess (cstring_copy (cstring_fromChars (oname)),
651 typeIdSet_undump (&s));
652
28bf4b0b 653 (void) reader_readLine (in, s, MAX_DUMP_LINE_LENGTH);
616915dd 654 llassert (s != lasts);
655 lasts = s;
656 }
657
658 sfree (oname);
659# ifndef NOFREE
660 sfree (os);
661# endif
662}
663
664typeIdSet context_fileAccessTypes (void)
665{
666 return gc.facct;
667}
668
669void
670context_resetModeFlags (void)
671{
672
673 allFlagCodes (code)
674 {
675 if (flagcode_isModeFlag (code))
676 {
677 context_setFlag (code, FALSE);
678 }
982cc10b 679 } end_allFlagCodes;
680}
616915dd 681
682/*
683** resetAllFlags
684**
685** Set all flags to FALSE, except for a few which are
686** true by default.
687**
688** Set all values and strings to appropriate defaults.
689** Set all counters to 0.
690*/
691
692static void
693conext_resetAllCounters (void)
694{
695 int i;
696
697 for (i = 0; i < NUMVALUEFLAGS; i++)
698 {
699 gc.counters[i] = 0;
700 }
701}
702
703void
3120b462 704context_resetAllFlags (void)
616915dd 705{
982cc10b 706 DPRINTF (("******** Reset all flags"));
707
616915dd 708 allFlagCodes (code)
709 {
710 gc.flags[code] = FALSE;
711
4f43223c 712 if (flagcode_hasNumber (code))
616915dd 713 {
714 int val = 0;
715
716 /*@-loopswitchbreak@*/
717 switch (code)
718 {
719 case FLG_LIMIT:
720 val = DEFAULT_LIMIT; break;
28bf4b0b 721 case FLG_BUGSLIMIT:
722 val = DEFAULT_BUGSLIMIT; break;
616915dd 723 case FLG_LINELEN:
724 val = DEFAULT_LINELEN; break;
28bf4b0b 725 case FLG_INDENTSPACES:
726 val = DEFAULT_INDENTSPACES; break;
616915dd 727 case FLG_EXTERNALNAMELEN:
27c9e640 728 val = ISO99_EXTERNALNAMELEN; break;
616915dd 729 case FLG_INTERNALNAMELEN:
27c9e640 730 val = ISO99_INTERNALNAMELEN; break;
616915dd 731 case FLG_COMMENTCHAR:
732 val = (int) DEFAULT_COMMENTCHAR; break;
733 case FLG_CONTROLNESTDEPTH:
27c9e640 734 val = (int) ISO99_CONTROLNESTDEPTH; break;
616915dd 735 case FLG_STRINGLITERALLEN:
27c9e640 736 val = (int) ISO99_STRINGLITERALLEN; break;
616915dd 737 case FLG_INCLUDENEST:
27c9e640 738 val = (int) ISO99_INCLUDENEST; break;
616915dd 739 case FLG_NUMSTRUCTFIELDS:
27c9e640 740 val = (int) ISO99_NUMSTRUCTFIELDS; break;
616915dd 741 case FLG_NUMENUMMEMBERS:
27c9e640 742 val = (int) ISO99_NUMENUMMEMBERS; break;
616915dd 743 case FLG_EXPECT:
744 case FLG_LCLEXPECT:
745 break;
746 default:
747 llbug (message ("Bad value flag: %s", flagcode_unparse (code)));
748 }
749 /*@=loopswitchbreak@*/
750
982cc10b 751 DPRINTF (("Set value: [%s] / %d", flagcode_unparse (code), val));
616915dd 752 context_setValue (code, val);
982cc10b 753 DPRINTF (("Set value: [%s] / %d", flagcode_unparse (code), context_getValue (code)));
754 llassert (context_getValue (code) == val);
616915dd 755 }
4f43223c 756 else if (flagcode_hasChar (code))
757 {
758 llassert (code == FLG_COMMENTCHAR);
759 context_setCommentMarkerChar (DEFAULT_COMMENTCHAR);
4f43223c 760 }
616915dd 761 else if (flagcode_hasString (code))
762 {
763 cstring val = cstring_undefined;
764
765 switch (code)
766 { /*@-loopswitchbreak@*/
767 case FLG_LARCHPATH:
768 {
28bf4b0b 769 cstring larchpath = osd_getEnvironmentVariable (LARCH_PATH);
616915dd 770
28bf4b0b 771 if (cstring_isDefined (larchpath))
616915dd 772 {
28bf4b0b 773 val = cstring_copy (larchpath);
616915dd 774 }
775 else
776 {
777 val = cstring_makeLiteral (DEFAULT_LARCHPATH);
778 }
779
780 break;
781 }
782 case FLG_LCLIMPORTDIR:
783 {
28bf4b0b 784 val = cstring_copy (osd_getEnvironment (cstring_makeLiteralTemp (LCLIMPORTDIR), cstring_makeLiteralTemp (DEFAULT_LCLIMPORTDIR)));
616915dd 785 break;
786 }
787 case FLG_TMPDIR:
788# if defined(OS2) || defined(MSDOS) || defined(WIN32)
789 {
790 char *env = osd_getEnvironmentVariable ("TMP");
791
792 if (env == NULL)
793 {
794 env = osd_getEnvironmentVariable ("TEMP");
795 }
796
797 val = cstring_makeLiteral (env != NULL ? env : DEFAULT_TMPDIR);
798 }
799# else
800 val = cstring_makeLiteral (DEFAULT_TMPDIR);
801# endif /* !defined(OS2) && !defined(MSDOS) */
802
803 break;
804 case FLG_BOOLTYPE:
805 val = cstring_makeLiteral (DEFAULT_BOOLTYPE); break;
806 case FLG_BOOLFALSE:
807 val = cstring_makeLiteral ("FALSE"); break;
808 case FLG_BOOLTRUE:
809 val = cstring_makeLiteral ("TRUE"); break;
810 case FLG_MACROVARPREFIX:
811 val = cstring_makeLiteral ("m_"); break;
812 case FLG_SYSTEMDIRS:
813 val = cstring_makeLiteral (DEFAULT_SYSTEMDIR); break;
814 default:
815 break;
816 } /*@=loopswitchbreak@*/
817
818 context_setString (code, val);
819 }
820 else
821 {
822 ; /* nothing to set */
823 }
824 } end_allFlagCodes;
825
826 /*
827 ** These flags are true by default.
828 */
829
28bf4b0b 830 /*@i34 move this into flags.def */
831
3e3ec469 832 gc.flags[FLG_OBVIOUSLOOPEXEC] = TRUE;
616915dd 833 gc.flags[FLG_MODIFIES] = TRUE;
834 gc.flags[FLG_NESTCOMMENT] = TRUE;
835 gc.flags[FLG_GLOBALS] = TRUE;
836 gc.flags[FLG_FULLINITBLOCK] = TRUE;
7534721d 837 gc.flags[FLG_INITSIZE] = TRUE;
838 gc.flags[FLG_INITALLELEMENTS] = TRUE;
839
840 gc.flags[FLG_STRINGLITTOOLONG] = TRUE;
841
616915dd 842 gc.flags[FLG_LIKELYBOOL] = TRUE;
843 gc.flags[FLG_ZEROPTR] = TRUE;
844 gc.flags[FLG_NUMLITERAL] = TRUE;
845 gc.flags[FLG_DUPLICATEQUALS] = TRUE;
846 gc.flags[FLG_SKIPANSIHEADERS] = TRUE;
847 gc.flags[FLG_SKIPPOSIXHEADERS] = TRUE;
848 gc.flags[FLG_SYSTEMDIREXPAND] = TRUE;
849 gc.flags[FLG_UNRECOGCOMMENTS] = TRUE;
990ec868 850 gc.flags[FLG_UNRECOGFLAGCOMMENTS] = TRUE;
616915dd 851 gc.flags[FLG_CASTFCNPTR] = TRUE;
852 gc.flags[FLG_DOLCS] = TRUE;
853 gc.flags[FLG_USEVARARGS] = TRUE;
854 gc.flags[FLG_MAINTYPE] = TRUE;
855 gc.flags[FLG_SPECMACROS] = TRUE;
856 gc.flags[FLG_REDEF] = TRUE;
857 gc.flags[FLG_MACRONEXTLINE] = TRUE;
858
859 gc.flags[FLG_SIZEOFFORMALARRAY] = TRUE;
860 gc.flags[FLG_FIXEDFORMALARRAY] = TRUE;
861
4c9767b3 862 gc.flags[FLG_UNRECOGDIRECTIVE] = TRUE;
28bf4b0b 863 gc.flags[FLG_WARNUSE] = TRUE;
616915dd 864 gc.flags[FLG_PREDASSIGN] = TRUE;
865 gc.flags[FLG_MODOBSERVER] = TRUE;
866 gc.flags[FLG_MACROVARPREFIXEXCLUDE] = TRUE;
867 gc.flags[FLG_EXTERNALNAMECASEINSENSITIVE] = TRUE;
868
869 gc.flags[FLG_PARAMIMPTEMP] = TRUE;
870 gc.flags[FLG_RETIMPONLY] = TRUE;
871 gc.flags[FLG_GLOBIMPONLY] = TRUE;
872 gc.flags[FLG_STRUCTIMPONLY] = TRUE;
873 gc.flags[FLG_PREPROC] = TRUE;
874 gc.flags[FLG_NAMECHECKS] = TRUE;
875 gc.flags[FLG_FORMATCODE] = TRUE;
876 gc.flags[FLG_FORMATTYPE] = TRUE;
877 gc.flags[FLG_BADFLAG] = TRUE;
878 gc.flags[FLG_WARNFLAGS] = TRUE;
60868d40 879 gc.flags[FLG_WARNRC] = TRUE;
28bf4b0b 880 gc.flags[FLG_FILEEXTENSIONS] = TRUE;
616915dd 881 gc.flags[FLG_WARNUNIXLIB] = TRUE;
882 gc.flags[FLG_WARNPOSIX] = TRUE;
883 gc.flags[FLG_SHOWCOL] = TRUE;
884 gc.flags[FLG_SHOWFUNC] = TRUE;
885 gc.flags[FLG_SUPCOUNTS] = TRUE;
886 gc.flags[FLG_HINTS] = TRUE;
887 gc.flags[FLG_SYNTAX] = TRUE;
888 gc.flags[FLG_TYPE] = TRUE;
889 gc.flags[FLG_INCOMPLETETYPE] = TRUE;
890 gc.flags[FLG_ABSTRACT] = TRUE;
bb7c2085 891 gc.flags[FLG_ITERBALANCE] = TRUE;
892 gc.flags[FLG_ITERYIELD] = TRUE;
893 gc.flags[FLG_DUPLICATECASES] = TRUE;
894 gc.flags[FLG_ALWAYSEXITS] = TRUE;
895 gc.flags[FLG_EMPTYRETURN] = TRUE;
896 gc.flags[FLG_MACRORETURN] = TRUE;
616915dd 897 gc.flags[FLG_UNRECOG] = TRUE;
898 gc.flags[FLG_SYSTEMUNRECOG] = TRUE;
899 gc.flags[FLG_LINTCOMMENTS] = TRUE;
900 gc.flags[FLG_ACCESSCZECH] = TRUE;
901 gc.flags[FLG_ACCESSMODULE] = TRUE;
902 gc.flags[FLG_ACCESSFILE] = TRUE;
903 gc.flags[FLG_MACROVARPREFIX] = TRUE;
904
28bf4b0b 905 gc.flags[FLG_ANNOTATIONERROR] = TRUE;
906 gc.flags[FLG_COMMENTERROR] = TRUE;
907
616915dd 908 /*
909 ** Changed for version 2.4.
910 */
911
912 gc.flags[FLG_GNUEXTENSIONS] = TRUE;
913
4a689c7f 914 /*
915 Changed for 3.0.0.19
916 */
917 gc.flags[FLG_ORCONSTRAINT] = TRUE;
918 gc.flags[FLG_CONSTRAINTLOCATION] = TRUE;
616915dd 919 /*
920 ** On by default for Win32, but not Unix (to support MS/VC++ error message format).
921 */
922
923# ifdef WIN32
924 gc.flags[FLG_PARENFILEFORMAT] = TRUE;
925# endif
926}
927
928/*
929** C is way-lame, and you can initialize an array to a constant except where
930** it is declared. Hence, a macro is used to set the modeflags.
931*/
932
933/*@notfunction@*/
934# define SETFLAGS() \
935 { int i = 0; while (modeflags[i] != INVALID_FLAG) { \
936 if (!flagcode_isModeFlag (modeflags[i])) \
937 { llbug (message ("not a mode flag: %s", \
938 flagcode_unparse (modeflags[i]))); } \
939 else { context_setFlag (modeflags[i], TRUE); } i++; }}
940
982cc10b 941static void context_setModeAux (cstring p_s, bool p_warn) ;
942
616915dd 943void
944context_setMode (cstring s)
982cc10b 945{
946 context_setModeAux (s, TRUE);
947}
948
949void
950context_setModeNoWarn (cstring s)
951{
952 context_setModeAux (s, FALSE);
953}
954
955void
956context_setModeAux (cstring s, bool warn)
616915dd 957{
958 intSet setflags = intSet_new ();
959
960 allFlagCodes (code)
961 {
962 if (flagcode_isModeFlag (code))
963 {
964 if (gc.setGlobally[code])
965 {
966 (void) intSet_insert (setflags, (int) code);
967 }
968 }
969 } end_allFlagCodes;
970
971 if (!intSet_isEmpty (setflags))
972 {
973 cstring rflags = cstring_undefined;
974 int num = 0;
975
976 intSet_elements (setflags, el)
977 {
978 if (cstring_isUndefined (rflags))
979 {
980 rflags = cstring_copy (flagcode_unparse ((flagcode) (el)));
981 }
982 else
983 {
984 rflags = message ("%q, %s", rflags,
985 flagcode_unparse ((flagcode) el));
986 }
987
988 num++;
989 if (num > 4 && intSet_size (setflags) > 6)
990 {
991 rflags = message ("%q, (%d others) ...", rflags,
992 intSet_size (setflags) - num);
993 break;
994 }
995 } end_intSet_elements ;
996
982cc10b 997 if (warn)
998 {
999 voptgenerror (FLG_WARNFLAGS,
1000 message ("Setting mode %s after setting mode flags will "
1001 "override set values of flags: %s",
1002 s, rflags),
1003 g_currentloc);
1004 }
616915dd 1005
1006 cstring_free (rflags);
1007 }
1008
1009 intSet_free (setflags);
1010
1011 context_resetModeFlags ();
1012
1013 if (cstring_equalLit (s, "standard"))
1014 {
1015 flagcode modeflags[] =
1016 {
1017 FLG_ENUMINT, FLG_MACROMATCHNAME,
7534721d 1018 FLG_STRINGLITNOROOM,
616915dd 1019 FLG_MACROUNDEF, FLG_RELAXQUALS,
1020 FLG_USEALLGLOBS, FLG_CHECKSTRICTGLOBALS,
1021 FLG_CHECKSTRICTGLOBALIAS,
1022 FLG_CHECKEDGLOBALIAS,
1023 FLG_CHECKMODGLOBALIAS,
1024 FLG_PREDBOOLOTHERS, FLG_PREDBOOLINT,
1d239d69 1025 FLG_UNSIGNEDCOMPARE,
616915dd 1026 FLG_PARAMUNUSED, FLG_VARUNUSED, FLG_FUNCUNUSED,
1027 FLG_TYPEUNUSED,
1028 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED, FLG_FIELDUNUSED,
1d239d69 1029 FLG_PTRNUMCOMPARE, FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1030 FLG_MUTREP, FLG_NOEFFECT, FLG_IMPTYPE,
616915dd 1031 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
28bf4b0b 1032 FLG_SPECUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB, FLG_MISPLACEDSHAREQUAL,
616915dd 1033 FLG_MATCHFIELDS,
28bf4b0b 1034 FLG_FORMATCONST,
616915dd 1035 FLG_MACROPARAMS, FLG_MACROASSIGN, FLG_SEFPARAMS,
1036 FLG_MACROSTMT, FLG_MACROPARENS,
1037 FLG_MACROFCNDECL,
1038 FLG_MACROCONSTDECL,
1039 FLG_MACROREDEF, FLG_INFLOOPS, FLG_UNREACHABLE,
1040 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1041 FLG_FIRSTCASE,
1042 FLG_NESTEDEXTERN,
1043 FLG_NUMLITERAL,
1044 FLG_ZEROBOOL,
1045 /* memchecks flags */
1046 FLG_NULLDEREF,
1047 FLG_NULLSTATE, FLG_NULLASSIGN,
1048 FLG_NULLPASS, FLG_NULLRET,
1049
1050 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1051 FLG_RETSTACK,
1052
1053 /* memtrans flags */
1054 FLG_EXPOSETRANS,
1055 FLG_OBSERVERTRANS,
1056 FLG_DEPENDENTTRANS,
1057 FLG_NEWREFTRANS,
1058 FLG_ONLYTRANS,
1059 FLG_OWNEDTRANS,
1060 FLG_FRESHTRANS,
1061 FLG_SHAREDTRANS,
1062 FLG_TEMPTRANS,
1063 FLG_KEPTTRANS,
1064 FLG_REFCOUNTTRANS,
1065 FLG_STATICTRANS,
1066 FLG_UNKNOWNTRANS,
1067 FLG_KEEPTRANS,
1068 FLG_IMMEDIATETRANS,
1069
1070 FLG_EXPORTLOCAL,
1071
1072 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
2e127cb8 1073 FLG_MUSTFREEONLY,
1074 FLG_MUSTFREEFRESH,
1075 FLG_MUSTDEFINE, FLG_GLOBSTATE,
616915dd 1076 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1077 FLG_MEMIMPLICIT,
1078 FLG_BRANCHSTATE,
28bf4b0b 1079 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1080 FLG_EVALORDER, FLG_SHADOW, FLG_READONLYSTRINGS,
1081 FLG_EXITARG,
1082 FLG_IMPCHECKEDSPECGLOBALS,
1083 FLG_MODGLOBS, FLG_WARNLINTCOMMENTS,
1084 FLG_IFEMPTY, FLG_REALCOMPARE,
1085 FLG_BOOLOPS, FLG_PTRNEGATE,
a956d444 1086 FLG_SHIFTNEGATIVE,
1087 FLG_SHIFTIMPLEMENTATION,
28bf4b0b 1088 FLG_BUFFEROVERFLOWHIGH,
1089 FLG_BUFFEROVERFLOW,
1090 INVALID_FLAG
1091 } ;
616915dd 1092
1093 SETFLAGS ();
1094 }
1095 else if (cstring_equalLit (s, "weak"))
1096 {
1097 flagcode modeflags[] =
1098 {
1099 FLG_BOOLINT, FLG_CHARINT, FLG_FLOATDOUBLE,
1100 FLG_ENUMINT, FLG_RELAXQUALS, FLG_FORWARDDECL,
1101 FLG_CHARINDEX, FLG_ABSTVOIDP, FLG_USEALLGLOBS,
1102 FLG_CHARUNSIGNEDCHAR,
1103 FLG_PREDBOOLOTHERS,
1104 FLG_VARUNUSED, FLG_FUNCUNUSED,
1105 FLG_TYPEUNUSED,
1106 FLG_CHECKSTRICTGLOBALS, FLG_MACROMATCHNAME,
1107 FLG_RETVALOTHER,
1108 FLG_IFEMPTY,
1d239d69 1109 FLG_BUFFEROVERFLOWHIGH,
616915dd 1110 FLG_RETSTACK, FLG_PTRNEGATE,
28bf4b0b 1111 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1112 FLG_LONGUNSIGNEDINTEGRAL,
1113 FLG_LONGUNSIGNEDUNSIGNEDINTEGRAL,
1114 FLG_NUMLITERAL,
1115 FLG_CHARINTLITERAL,
1116 FLG_ZEROBOOL,
28bf4b0b 1117 FLG_BUFFEROVERFLOWHIGH,
616915dd 1118 INVALID_FLAG
1119 } ;
1120
1121 SETFLAGS ();
1122 }
1123 else if (cstring_equalLit (s, "checks"))
1124 {
1125 flagcode modeflags[] =
1126 {
1127 FLG_EXPORTLOCAL, FLG_IMPTYPE,
28bf4b0b 1128 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1129 FLG_CHECKSTRICTGLOBALIAS,
1130 FLG_CHECKEDGLOBALIAS,
1131 FLG_CHECKMODGLOBALIAS,
1132 FLG_UNCHECKEDGLOBALIAS,
28bf4b0b 1133 FLG_FORMATCONST,
7534721d 1134 FLG_STRINGLITNOROOM,
1135 FLG_STRINGLITSMALLER,
616915dd 1136 FLG_EXITARG, FLG_PTRNUMCOMPARE,
1d239d69 1137 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1138 FLG_MACROUNDEF, FLG_MUSTMOD, FLG_ALLGLOBALS,
616915dd 1139 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1140 FLG_USEALLGLOBS, FLG_MUTREP, FLG_RETALIAS,
1141 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1142 FLG_FUNCUNUSED, FLG_GLOBALSIMPMODIFIESNOTHING,
1143 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_VARUNUSED,
1144 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1145 FLG_NOEFFECT, FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1146 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
1147 FLG_SPECUNDEF, FLG_IMPCHECKMODINTERNALS,
1148 FLG_DECLUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB,
28bf4b0b 1149 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
616915dd 1150 FLG_MATCHFIELDS,
1151 FLG_MACROPARAMS,
1152 FLG_MACROASSIGN,
1153 FLG_DECLPARAMMATCH,
1154 FLG_FCNDEREF,
1155 FLG_FIRSTCASE,
1156 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1157 FLG_MACROCONSTDECL,
1158 FLG_MACROFCNDECL,
1159 FLG_MACROREDEF,
1160 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1161 FLG_UNREACHABLE,
1162 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE,
1163 FLG_EVALORDER, FLG_USEDEF,
616915dd 1164 FLG_NESTEDEXTERN,
1165
1d239d69 1166 /* warn use flags */
1167 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1168 FLG_BUFFEROVERFLOWHIGH,
1169
616915dd 1170 /* memchecks flags */
1171
1172 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1173 FLG_NULLPASS, FLG_NULLRET,
1174
1175 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF, FLG_RETSTACK,
1176
1177 /* memtrans flags */
1178 FLG_EXPOSETRANS,
1179 FLG_OBSERVERTRANS,
1180 FLG_DEPENDENTTRANS,
1181 FLG_NEWREFTRANS,
1182 FLG_ONLYTRANS,
1183 FLG_OWNEDTRANS,
1184 FLG_FRESHTRANS,
1185 FLG_SHAREDTRANS,
1186 FLG_TEMPTRANS,
1187 FLG_KEPTTRANS,
1188 FLG_REFCOUNTTRANS,
1189 FLG_STATICTRANS,
1190 FLG_UNKNOWNTRANS,
1191 FLG_STATICINITTRANS,
1192 FLG_UNKNOWNINITTRANS,
1193 FLG_KEEPTRANS,
1194 FLG_IMMEDIATETRANS,
1195 FLG_ONLYUNQGLOBALTRANS,
1196 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
2e127cb8 1197 FLG_MUSTFREEONLY,
1198 FLG_MUSTFREEFRESH,
1199 FLG_MUSTDEFINE, FLG_GLOBSTATE,
616915dd 1200 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1201 FLG_MEMIMPLICIT,
1202 FLG_BRANCHSTATE,
1203 FLG_NULLPOINTERARITH,
1204 FLG_SHADOW, FLG_DEPARRAYS,
1205 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1206 FLG_LOOPLOOPBREAK, FLG_SWITCHLOOPBREAK, FLG_MODGLOBS,
1207 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1208 FLG_MACROMATCHNAME, FLG_WARNLINTCOMMENTS,
1209 FLG_INCLUDENEST, FLG_ANSIRESERVED, FLG_CPPNAMES,
1210 FLG_NOPARAMS, FLG_IFEMPTY, FLG_WHILEEMPTY, FLG_REALCOMPARE,
a956d444 1211 FLG_BOOLOPS, FLG_SHIFTNEGATIVE,
1212 FLG_SHIFTIMPLEMENTATION,
28bf4b0b 1213 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
616915dd 1214 INVALID_FLAG } ;
1215
1216 SETFLAGS ();
1217 }
1218 else if (cstring_equalLit (s, "strict"))
1219 {
1220 flagcode modeflags[] =
1221 {
1222 FLG_CHECKSTRICTGLOBALIAS,
1223 FLG_CHECKEDGLOBALIAS,
1224 FLG_CHECKMODGLOBALIAS,
1225 FLG_UNCHECKEDGLOBALIAS,
1226 FLG_MODFILESYSTEM,
1227 FLG_MACROMATCHNAME,
28bf4b0b 1228 FLG_FORMATCONST,
7534721d 1229 FLG_STRINGLITNOROOM,
1230 FLG_STRINGLITSMALLER,
28bf4b0b 1231 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1232 FLG_MACROUNDEF, FLG_MUTREP, FLG_MUSTMOD,
1233 FLG_ALLGLOBALS, FLG_IMPTYPE,
1234 FLG_MODNOMODS, FLG_MODGLOBSUNSPEC, FLG_MODSTRICTGLOBSUNSPEC,
1235 FLG_GLOBUNSPEC, FLG_SIZEOFTYPE,
1236 FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1237 FLG_NOPARAMS, FLG_OLDSTYLE, FLG_EXITARG,
1238 FLG_RETSTACK,
1239 FLG_FCNDEREF,
1240 FLG_ONLYUNQGLOBALTRANS,
1241 FLG_GLOBALSIMPMODIFIESNOTHING,
1242 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1243 FLG_INTERNALGLOBS, FLG_INTERNALGLOBSNOGLOBS,
1244 FLG_USEALLGLOBS, FLG_RETALIAS,
1245 FLG_MODGLOBS, FLG_MODGLOBSUNSPEC, FLG_MODGLOBSUNCHECKED,
1246 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1247 FLG_NOEFFECTUNCON, FLG_EVALORDERUNCON,
1248 FLG_FUNCUNUSED,
1249 FLG_EXPORTITER, FLG_EXPORTCONST,
1250 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_TOPUNUSED,
1251 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1252 FLG_VARUNUSED,
1253 FLG_NULLPOINTERARITH, FLG_POINTERARITH,
1254 FLG_PTRNUMCOMPARE,
1d239d69 1255 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1256 FLG_NOEFFECT, FLG_RETVALINT, FLG_RETVALBOOL, FLG_RETVALOTHER,
616915dd 1257 FLG_ANSIRESERVED, FLG_ANSIRESERVEDLOCAL, FLG_CPPNAMES,
1258 FLG_RETVALBOOL, FLG_RETVALINT, FLG_SPECUNDEF,
1259 FLG_DECLUNDEF, FLG_STRICTOPS, FLG_INCONDEFS,
28bf4b0b 1260 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
616915dd 1261 FLG_INCONDEFSLIB, FLG_MATCHFIELDS, FLG_EXPORTMACRO, FLG_EXPORTVAR,
1262 FLG_EXPORTFCN, FLG_EXPORTTYPE, FLG_EXPORTLOCAL, FLG_MACROPARAMS,
1263 FLG_MACROASSIGN,
1264 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1265 FLG_MACROFCNDECL,
1266 FLG_MACROCONSTDECL,
1267 FLG_MACROREDEF, FLG_MACROEMPTY,
1268 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1269 FLG_UNREACHABLE,
1270 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1271 FLG_EVALORDER,
1272 FLG_MODUNCON, FLG_MODUNCONNOMODS, FLG_MODINTERNALSTRICT,
1273 FLG_MODOBSERVERUNCON,
1274
1275 FLG_NESTEDEXTERN,
1276 FLG_FIRSTCASE,
1277
1d239d69 1278 /* warn use flags */
1279 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1280 FLG_BUFFEROVERFLOWHIGH,
1281 FLG_BUFFEROVERFLOW, FLG_TOCTOU,
1282
616915dd 1283 /* memchecks flags */
1284 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1285 FLG_NULLPASS, FLG_NULLRET,
1286
1287 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1288
1289 /* memtrans flags */
1290 FLG_EXPOSETRANS,
1291 FLG_OBSERVERTRANS,
1292 FLG_DEPENDENTTRANS,
1293 FLG_NEWREFTRANS,
1294 FLG_ONLYTRANS,
1295 FLG_OWNEDTRANS,
1296 FLG_FRESHTRANS,
1297 FLG_SHAREDTRANS,
1298 FLG_TEMPTRANS,
1299 FLG_KEPTTRANS,
1300 FLG_REFCOUNTTRANS,
1301 FLG_STATICTRANS,
1302 FLG_UNKNOWNTRANS,
1303 FLG_KEEPTRANS,
1304 FLG_IMMEDIATETRANS,
1305 FLG_STATICINITTRANS,
1306 FLG_UNKNOWNINITTRANS,
1307
1308 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
2e127cb8 1309 FLG_MUSTFREEONLY,
1310 FLG_MUSTFREEFRESH,
1311 FLG_MUSTDEFINE, FLG_GLOBSTATE,
616915dd 1312 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1313 FLG_MEMIMPLICIT,
1314 FLG_BRANCHSTATE,
1315
1316 FLG_DECLPARAMNAME, FLG_DECLPARAMMATCH,
1317
1318 FLG_SHADOW, FLG_DEPARRAYS,
1319 FLG_STRICTDESTROY, FLG_STRICTUSERELEASED, FLG_STRICTBRANCHSTATE,
1320 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1321 FLG_LOOPLOOPBREAK, FLG_LOOPSWITCHBREAK, FLG_SWITCHLOOPBREAK,
1322 FLG_SWITCHSWITCHBREAK, FLG_LOOPLOOPCONTINUE,
1323 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1324 FLG_ALLGLOBALS, FLG_IMPCHECKEDSTRICTGLOBALS,
1325 FLG_IMPCHECKEDSTRICTSTATICS,
1326 FLG_IMPCHECKEDSTRICTSPECGLOBALS,
1327 FLG_IMPCHECKMODINTERNALS,
1328 FLG_WARNMISSINGGLOBALS, FLG_WARNMISSINGGLOBALSNOGLOBS,
1329 FLG_WARNLINTCOMMENTS, FLG_ANSIRESERVEDLOCAL,
1330 FLG_INCLUDENEST, FLG_STRINGLITERALLEN,
1331 FLG_NUMSTRUCTFIELDS, FLG_NUMENUMMEMBERS,
1332 FLG_CONTROLNESTDEPTH,
1333 FLG_FORBLOCK, FLG_WHILEBLOCK,
1334 FLG_FOREMPTY, FLG_WHILEEMPTY,
1335 FLG_IFEMPTY, FLG_IFBLOCK,
1336 FLG_ELSEIFCOMPLETE,
1337 FLG_REALCOMPARE, FLG_BOOLOPS,
1338 FLG_SYSTEMDIRERRORS, FLG_UNUSEDSPECIAL,
1339
a956d444 1340 FLG_SHIFTNEGATIVE,
1341 FLG_SHIFTIMPLEMENTATION,
1342 FLG_BITWISEOPS,
28bf4b0b 1343 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1344 INVALID_FLAG
1345 } ;
616915dd 1346
1347 SETFLAGS ();
1348 }
1349 else
1350 {
1351 llcontbug (message ("context_setMode: bad mode: %s", s));
1352 }
1353}
1354
1355bool
1356context_isSpecialFile (cstring fname)
1357{
28bf4b0b 1358 cstring ext = fileLib_getExtension (fname);
616915dd 1359
28bf4b0b 1360 return (cstring_equalLit (ext, ".y")
1361 || cstring_equalLit (ext, ".l")
616915dd 1362 || cstring_equalLit (fname, "lex.yy.c"));
1363}
1364
1365bool
1366context_isSystemDir (cstring dir)
1367{
68de3f33 1368 cstring thisdir = cstring_copy (context_getString (FLG_SYSTEMDIRS));
1369 cstring savedir = thisdir;
1370 cstring nextdir = cstring_afterChar (thisdir, PATH_SEPARATOR);
1371
1372 if (cstring_isDefined (nextdir))
616915dd 1373 {
68de3f33 1374 /*@access cstring@*/
1375 *nextdir = '\0'; /* closes thisdir */
616915dd 1376 nextdir += 1;
68de3f33 1377 /*@noaccess cstring@*/
616915dd 1378 }
1379
68de3f33 1380 /* 2001-09-09: added thisdir[0] != '\0'
1381 ** herbert: don't compare with an empty name!
1382 ** should return false for empty directory path
1383 */
1384
1385 while (!cstring_isEmpty (thisdir))
616915dd 1386 {
1387 DPRINTF (("Test: %s / %s", dir, thisdir));
1388
68de3f33 1389 if (osd_equalCanonicalPrefix (dir, thisdir))
616915dd 1390 {
68de3f33 1391 cstring_free (savedir);
616915dd 1392 return TRUE;
1393 }
1394
68de3f33 1395 if (cstring_isDefined (nextdir))
616915dd 1396 {
1397 thisdir = nextdir;
68de3f33 1398 nextdir = cstring_afterChar (thisdir, PATH_SEPARATOR);
616915dd 1399
68de3f33 1400 if (cstring_isDefined (nextdir))
616915dd 1401 {
68de3f33 1402 /*@access cstring@*/
616915dd 1403 *nextdir = '\0';
1404 nextdir += 1;
68de3f33 1405 /*@noaccess cstring@*/
616915dd 1406 }
1407 }
1408 else
1409 {
1410 break;
1411 }
1412 }
1413
1414 DPRINTF (("Returns FALSE"));
68de3f33 1415 cstring_free (savedir);
616915dd 1416 return FALSE;
1417}
1418
1419void
1420context_addFileAccessType (typeId t)
1421{
1422 cstring base;
1423
28bf4b0b 1424 if (context_inFunctionLike ())
616915dd 1425 {
1426 gc.acct = typeIdSet_insert (gc.acct, t);
1427 }
1428
1429 gc.facct = typeIdSet_insert (gc.facct, t);
1430
1431 base = fileloc_getBase (g_currentloc);
1432 insertModuleAccess (base, t);
1433 DPRINTF (("Add file access: %s / %s", typeIdSet_unparse (gc.facct),
1434 typeIdSet_unparse (gc.acct)));
1435}
1436
1437void
1438context_removeFileAccessType (typeId t)
1439{
1440 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
1441 || gc.kind == CX_UNKNOWNMACRO)
1442 {
1443 gc.acct = typeIdSet_removeFresh (gc.acct, t);
1444 }
1445
1446 gc.facct = typeIdSet_removeFresh (gc.facct, t);
1447 gc.nacct = typeIdSet_insert (gc.nacct, t);
1448}
1449
28bf4b0b 1450void context_enterFunctionHeader (void)
616915dd 1451{
b7e84605 1452 if (context_getFlag (FLG_GRAMMAR))
1453 {
1454 lldiagmsg (message ("Enter function header: %q", context_unparse ()));
1455 }
1456
ba45e1e4 1457 if (gc.kind != CX_GLOBAL)
1458 {
1459 llparseerror (cstring_makeLiteral
1460 ("Likely parse error. Function header outside global context."));
1461 }
1462 else
1463 {
1464 llassert (gc.kind == CX_GLOBAL);
1465 DPRINTF (("Enter function header!"));
1466 gc.inFunctionHeader = TRUE;
1467 }
616915dd 1468}
1469
28bf4b0b 1470void context_exitFunctionHeader (void)
616915dd 1471{
b7e84605 1472 if (context_getFlag (FLG_GRAMMAR))
1473 {
1474 lldiagmsg (message ("Exit function header: %q", context_unparse ()));
1475 }
1476
d9a28762 1477 DPRINTF (("Exit function header!"));
1478 gc.inFunctionHeader = FALSE;
616915dd 1479}
1480
28bf4b0b 1481bool context_inFunctionHeader (void)
1482{
d9a28762 1483 return (gc.inFunctionHeader);
28bf4b0b 1484}
1485
1486void context_enterFunctionDeclaration (uentry e)
1487{
b7e84605 1488 if (context_getFlag (FLG_GRAMMAR))
1489 {
1490 lldiagmsg (message ("Enter function declaration: %q", context_unparse ()));
1491 }
1492
28bf4b0b 1493 DPRINTF (("Enter function decl"));
1494 llassert (gc.savekind == CX_ERROR);
1495 gc.savekind = gc.kind;
b7e84605 1496 gc.savecont = gc.cont;
28bf4b0b 1497 gc.kind = CX_FCNDECLARATION;
1498 gc.cont.fcn = e;
1499}
1500
1501void context_exitFunctionDeclaration (void)
616915dd 1502{
b7e84605 1503 if (context_getFlag (FLG_GRAMMAR))
1504 {
1505 lldiagmsg (message ("Exit function declaration: %q", context_unparse ()));
1506 }
1507
28bf4b0b 1508 DPRINTF (("Exit function decl"));
1509 llassert (gc.savekind != CX_ERROR);
1510 llassert (gc.kind == CX_FCNDECLARATION);
1511 gc.kind = gc.savekind;
b7e84605 1512 gc.cont = gc.savecont;
1513
28bf4b0b 1514 gc.savekind = CX_ERROR;
b7e84605 1515
1516 if (context_getFlag (FLG_GRAMMAR))
1517 {
1518 lldiagmsg (message ("After exit function declaration: %q", context_unparse ()));
1519 }
616915dd 1520}
1521
28bf4b0b 1522bool context_inFunctionDeclaration (void)
1523{
1524 return (gc.kind == CX_FCNDECLARATION);
1525}
1526
1527
616915dd 1528void
1529context_enterMacro (/*@observer@*/ uentry e)
1530{
1531 context_enterFunction (e);
1532 gc.kind = CX_MACROFCN;
1533}
1534
1535void
1536context_enterUnknownMacro (/*@dependent@*/ uentry e)
1537{
1538 llassert (uentry_isFunction (e));
1539 context_enterFunction (e);
1540 gc.kind = CX_UNKNOWNMACRO;
1541}
1542
1543void context_enterAndClause (exprNode e)
1544{
1545
1546 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1547 pushClause (ANDCLAUSE);
1548}
1549
1550void context_enterOrClause (exprNode e)
1551{
1552 usymtab_trueBranch (guardSet_invert (exprNode_getGuards (e)));
1553 pushClause (ORCLAUSE);
1554}
1555
1556bool context_inDeepLoop (void)
1557{
1558 bool inLoop = FALSE;
1559
1560 clauseStack_elements (gc.clauses, el)
1561 {
1562 if (clause_isLoop (el))
1563 {
1564 if (inLoop)
1565 {
1566 return TRUE;
1567 }
1568
1569 inLoop = TRUE;
1570 }
1571 } end_clauseStack_elements;
1572
1573 return FALSE;
1574}
1575
1576bool context_inDeepSwitch (void)
1577{
1578 bool inLoop = FALSE;
1579
1580 clauseStack_elements (gc.clauses, el)
1581 {
1582 if (clause_isSwitch (el))
1583 {
1584 if (inLoop)
1585 {
1586 return TRUE;
1587 }
1588
1589 inLoop = TRUE;
1590 }
1591 } end_clauseStack_elements;
1592
1593 return FALSE;
1594}
1595
1596bool context_inDeepLoopSwitch (void)
1597{
1598 bool inLoop = FALSE;
1599
1600 clauseStack_elements (gc.clauses, el)
1601 {
1602 if (clause_isBreakable (el))
1603 {
1604 if (inLoop)
1605 {
1606 return TRUE;
1607 }
1608
1609 inLoop = TRUE;
1610 }
1611 } end_clauseStack_elements;
1612
1613 return FALSE;
1614}
1615
1616clause context_breakClause (void)
1617{
1618 clauseStack_elements (gc.clauses, el)
1619 {
1620 if (clause_isSwitch (el))
1621 {
1622 return el;
1623 }
1624 else if (clause_isLoop (el))
1625 {
1626 return el;
1627 }
1628 else
1629 {
1630 ;
1631 }
1632 } end_clauseStack_elements;
1633
1634 return NOCLAUSE;
1635}
1636
1637clause context_nextBreakClause (void)
1638{
1639 bool hasOne = FALSE;
1640
1641 clauseStack_elements (gc.clauses, el)
1642 {
1643 if (clause_isBreakable (el))
1644 {
1645 if (hasOne)
1646 {
1647 return el;
1648 }
1649 else
1650 {
1651 hasOne = TRUE;
1652 }
1653 }
1654 } end_clauseStack_elements;
1655
1656 return NOCLAUSE;
1657}
1658
1659bool context_inConditional (void)
1660{
1661 clauseStack_elements (gc.clauses, el)
1662 {
1663 /*
1664 ** Should also include TRUECLAUSE and FALSECLAUSE, but need
1665 ** to distinguish if from ? for this
1666 */
1667
1668 if (clause_isBreakable (el) && (el != DOWHILECLAUSE))
1669 {
1670 return TRUE;
1671 }
1672 } end_clauseStack_elements;
1673
1674 return FALSE;
1675}
1676
1677void context_exitAndClause (exprNode pred, exprNode tbranch)
1678{
1679 context_setJustPopped ();
1680
1681 llassert (gc.inclause == ANDCLAUSE);
1682
1683 usymtab_popAndBranch (pred, tbranch);
1684 clauseStack_pop (gc.clauses);
1685 gc.inclause = topClause (gc.clauses);
1686}
1687
1688void context_exitOrClause (exprNode pred, exprNode tbranch)
1689{
1690 context_setJustPopped ();
1691
1692 llassert (gc.inclause == ORCLAUSE);
1693
1694 usymtab_popOrBranch (pred, tbranch);
1695 clauseStack_pop (gc.clauses);
1696 gc.inclause = topClause (gc.clauses);
1697}
1698
1699static void context_enterCondClauseAux (clause cl)
1700 /*@modifies gc@*/
1701{
1702 pushClause (cl);
1703}
1704
1705static void context_enterTrueAux (exprNode e, clause cl)
1706 /*@modifies gc@*/
1707{
1708 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1709 pushClause (cl);
1710}
1711
1712void context_enterIterClause (void)
1713{
1714 context_enterTrueAux (exprNode_undefined, ITERCLAUSE);
1715}
1716
1717void context_enterDoWhileClause (void)
1718{
1719 pushClause (DOWHILECLAUSE);
1720}
1721
1722void context_enterWhileClause (exprNode e)
1723{
1724 context_enterTrueAux (e, WHILECLAUSE);
1725}
1726
1727void context_enterForClause (exprNode e)
1728{
1729 context_enterTrueAux (e, FORCLAUSE);
1730}
1731
1732void context_enterTrueClause (exprNode e)
1733{
1734 context_enterTrueAux (e, TRUECLAUSE);
1735}
1736
1737void context_enterSwitch (exprNode e)
1738{
1739
1740 usymtab_switchBranch (e);
1741 context_enterCondClauseAux (SWITCHCLAUSE);
1742}
1743
1744void context_exitSwitch (exprNode e, bool allpaths)
1745{
1746 usymtab_exitSwitch (e, allpaths);
1747
1748 while (clause_isCase (clauseStack_top (gc.clauses)))
1749 {
1750 clauseStack_pop (gc.clauses);
1751 }
1752
1753 context_exitClauseSimp ();
1754}
1755
1756void context_enterCaseClause (exprNode e)
1757{
1758 bool branch = FALSE;
1759
1760 DPRINTF (("Enter case clause!"));
1761
1762 branch = usymtab_newCase (exprNode_undefined, e);
1763
1764 if (branch)
1765 {
1766 context_enterCondClauseAux (CASECLAUSE);
1767 }
1768}
1769
1770static void context_enterFalseClauseAux (exprNode e, clause cl)
1771 /*@modifies gc@*/
1772{
1773 usymtab_altBranch (guardSet_invert (exprNode_getGuards (e)));
1774 gc.inclause = cl;
1775 clauseStack_switchTop (gc.clauses, cl);
1776}
1777
1778void context_enterFalseClause (exprNode e)
1779{
1780
1781 context_enterFalseClauseAux (e, FALSECLAUSE);
1782}
1783
1784void
1785context_enterConstantMacro (/*@exposed@*/ /*@dependent@*/ uentry e)
1786{
1787 gc.kind = CX_MACROCONST;
1788 gc.cont.fcn = e;
1789 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1790
1791 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1792 gc.nacct);
1793
1794
1795 usymtab_enterScope ();
1796 sRef_enterFunctionScope ();
1797
1798 gc.globs = globSet_undefined;
1799 globSet_clear (gc.globs_used);
1800 gc.mods = sRefSet_undefined;
1801}
1802
1803uentry context_getHeader (void)
1804{
1805 if (!(context_inFunctionLike () || (gc.kind == CX_MACROCONST)))
1806 {
1807 llfatalbug (message ("context_getHeader: bad call: %q",
1808 context_unparse ()));
1809 }
1810
1811 return (gc.cont.fcn);
1812}
1813
1814void
1815context_setFunctionDefined (fileloc loc)
1816{
1817 switch (gc.kind)
1818 {
1819 case CX_UNKNOWNMACRO:
1820 case CX_FUNCTION:
1821 case CX_MACROFCN:
1822 uentry_setFunctionDefined (gc.cont.fcn, loc);
1823 break;
1824 default:
1825 /* (not a bug because of parse errors) */
1826 break;
1827 }
1828}
1829
1830void
1831context_enterFunction (/*@exposed@*/ uentry e)
1832{
1833 gc.kind = CX_FUNCTION;
1834 gc.cont.fcn = e;
1835
28bf4b0b 1836 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1837
616915dd 1838 if (uentry_hasAccessType (e))
1839 {
1840 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1841 gc.nacct);
1842 }
1843 else
1844 {
1845 gc.acct = gc.facct;
1846 }
1847
1848 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1849 typeIdSet_unparse (gc.acct)));
1850
1851 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1852
1853 gc.globs = uentry_getGlobs (e);
1854 globSet_clear (gc.globs_used);
1855 gc.mods = uentry_getMods (e);
1856
1857 usymtab_enterFunctionScope (e);
1858 sRef_enterFunctionScope ();
1859}
1860
7ebcc5bb 1861void
1862context_enterOldStyleScope (void)
1863{
1864 gc.kind = CX_OLDSTYLESCOPE;
1865 DPRINTF (("Enter old style scope!"));
1866 usymtab_enterFunctionScope (uentry_undefined);
1867}
1868
1869void
1870context_completeOldStyleFunction (uentry e)
1871{
1872 llassert (gc.kind == CX_OLDSTYLESCOPE);
1873
1874 gc.kind = CX_FUNCTION;
1875 gc.cont.fcn = e;
1876
1877 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1878
1879 if (uentry_hasAccessType (e))
1880 {
1881 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1882 gc.nacct);
1883 }
1884 else
1885 {
1886 gc.acct = gc.facct;
1887 }
1888
1889 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1890 typeIdSet_unparse (gc.acct)));
1891
1892 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1893
1894 if (!globSet_isEmpty (uentry_getGlobs (e)))
1895 {
1896 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1897 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1898 }
1899
1900 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1901
1902 gc.globs = uentry_getGlobs (e);
1903 globSet_clear (gc.globs_used);
1904
1905 gc.mods = uentry_getMods (e);
1906
1907 if (!sRefSet_isEmpty (gc.mods))
1908 {
1909 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1910 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1911 }
1912
1913 sRef_enterFunctionScope ();
1914}
1915
616915dd 1916static bool context_checkStrictGlobals (void)
1917{
1918 return (context_getFlag (FLG_CHECKSTRICTGLOBALS));
1919}
1920
1921static bool context_hasGlobs (void)
1922{
1923 if (context_inFunctionLike ())
1924 {
1925 return (uentry_hasGlobs (gc.cont.fcn));
1926 }
1927 else
1928 {
1929 return (FALSE);
1930 }
1931}
1932
1933static bool context_checkCheckedGlobals (void)
1934{
1935 return (context_getFlag (FLG_GLOBALS)
1936 && (context_getFlag (FLG_GLOBUNSPEC)
1937 || context_hasGlobs ()));
1938}
1939
1940static bool context_checkUnknownGlobals (void)
1941{
1942 /* should be uentry_hasGlobs ? */
1943
1944 return (context_getFlag (FLG_ALLGLOBALS)
1945 && (context_getFlag (FLG_GLOBUNSPEC)
1946 || context_hasGlobs ()));
1947}
1948
1949static bool context_checkUncheckedGlobals (void)
1950{
1951 return (FALSE);
1952}
1953
1954bool
1955context_checkExport (uentry e)
1956{
1957 if (!gc.anyExports) return FALSE;
1958
1959 if (uentry_isFunction (e)
1960 || (uentry_isVariable (e) && ctype_isFunction (uentry_getType (e))))
1961 {
1962 return context_maybeSet (FLG_EXPORTFCN);
1963 }
1964 else if (uentry_isExpandedMacro (e))
1965 {
1966 return context_maybeSet (FLG_EXPORTMACRO);
1967 }
1968 else if (uentry_isVariable (e))
1969 {
1970 return context_maybeSet (FLG_EXPORTVAR);
1971 }
1972 else if (uentry_isEitherConstant (e))
1973 {
1974 return context_maybeSet (FLG_EXPORTCONST);
1975 }
1976 else if (uentry_isIter (e) || uentry_isEndIter (e))
1977 {
1978 return context_maybeSet (FLG_EXPORTITER);
1979 }
1980 else if (uentry_isDatatype (e))
1981 {
1982 return context_maybeSet (FLG_EXPORTTYPE);
1983 }
1984 else
1985 {
1986 BADEXIT;
1987 }
1988}
1989
1990bool
1991context_checkGlobUse (uentry glob)
1992{
1993
1994 if (uentry_isCheckedStrict (glob))
1995 {
1996 return context_checkStrictGlobals ();
1997 }
1998 else if (uentry_isChecked (glob))
1999 {
2000 return context_checkCheckedGlobals ();
2001 }
2002 else if (uentry_isCheckedUnknown (glob) || uentry_isCheckMod (glob))
2003 {
2004 return context_checkUnknownGlobals ();
2005 }
2006 else
2007 {
2008 llassert (uentry_isUnchecked (glob));
2009
2010 return context_checkUncheckedGlobals ();
2011 }
2012}
2013
2014bool
2015context_checkAliasGlob (uentry glob)
2016{
2017 if (uentry_isCheckedStrict (glob))
2018 {
2019 return gc.flags[FLG_CHECKSTRICTGLOBALIAS];
2020 }
2021 else if (uentry_isChecked (glob))
2022 {
2023 return gc.flags[FLG_CHECKEDGLOBALIAS];
2024 }
2025 else if (uentry_isCheckMod (glob))
2026 {
2027 return gc.flags[FLG_CHECKMODGLOBALIAS];
2028 }
2029 else
2030 {
2031 llassert (uentry_isUnchecked (glob) || uentry_isCheckedUnknown (glob));
2032
2033 return gc.flags[FLG_UNCHECKEDGLOBALIAS];
2034 }
2035}
2036
2037bool context_checkInternalUse (void)
2038{
2039 if (context_hasGlobs ())
2040 {
2041 return (gc.flags[FLG_INTERNALGLOBS]);
2042 }
2043 else
2044 {
2045 return (gc.flags[FLG_INTERNALGLOBSNOGLOBS]);
2046 }
2047}
2048
2049bool
2050context_checkGlobMod (sRef el)
2051{
2052 uentry ue = sRef_getUentry (el);
2053
28bf4b0b 2054 /* no: llassert (sRef_isFileOrGlobalScope (el)); also check local statics */
616915dd 2055
2056 if (uentry_isCheckedModify (ue)
2057 || (!uentry_isUnchecked (ue) && (gc.flags[FLG_ALLGLOBALS])))
2058 {
2059 if (context_hasMods ())
2060 {
2061 return (gc.flags[FLG_MODGLOBS]);
2062 }
2063 else
2064 {
2065 if (uentry_isCheckedStrict (ue))
2066 {
2067 return (gc.flags[FLG_MODGLOBSUNSPEC]);
2068 }
2069 else
2070 {
2071 return (gc.flags[FLG_MODSTRICTGLOBSUNSPEC]);
2072 }
2073 }
2074 }
2075 else
2076 {
2077 if (context_hasMods ())
2078 {
2079 return (gc.flags[FLG_MODGLOBSUNCHECKED]);
2080 }
2081 else
2082 {
2083 return FALSE;
2084 }
2085 }
2086}
2087
2088void
28bf4b0b 2089context_usedGlobal (/*@exposed@*/ sRef el)
616915dd 2090{
2091 if (!globSet_member (gc.globs_used, el))
2092 {
2093 /*
2094 ** The first time a global is used in a function, we need
2095 ** to clear the derived sRefs, since they were set for the
2096 ** previous function.
2097 */
2098
2099 sRef_clearDerived (el);
2100 gc.globs_used = globSet_insert (gc.globs_used, el);
2101 }
2102}
2103
2104/*@observer@*/ sRefSet
2105context_modList (void)
2106{
2107 return gc.mods;
2108}
2109
2110bool
2111context_globAccess (sRef s)
2112{
28bf4b0b 2113 llassert (sRef_isFileOrGlobalScope (s) || sRef_isKindSpecial (s));
616915dd 2114 return (globSet_member (gc.globs, s));
2115}
2116
2117bool
2118context_hasAccess (typeId t)
2119{
2120 if (context_inFunctionLike ())
2121 {
28bf4b0b 2122 DPRINTF (("Access %d / %s",
2123 t, typeIdSet_unparse (gc.acct)));
616915dd 2124 return (typeIdSet_member (gc.acct, t));
2125 }
2126 else
2127 {
2128 return (context_hasFileAccess (t));
2129 }
2130}
2131
2132bool
2133context_hasFileAccess (typeId t)
2134{
2135 return (typeIdSet_member (gc.facct, t));
2136}
2137
2138/*@only@*/ cstring
2139context_unparseAccess (void)
2140{
2141 return (message ("%q / %q", typeIdSet_unparse (gc.acct),
2142 typeIdSet_unparse (gc.facct)));
2143}
2144
2145/*@only@*/ cstring
2146context_unparseClauses (void)
2147{
2148 return (clauseStack_unparse (gc.clauses));
2149}
2150
2151bool
2152context_couldHaveAccess (typeId t)
2153{
2154 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO)
2155 {
2156 return (typeIdSet_member (gc.acct, t));
2157 }
2158 else
2159 {
2160 return (typeIdSet_member (gc.facct, t));
2161 }
2162}
2163
2164ctype
2165context_getRetType (void)
2166{
2167 ctype f = ctype_undefined;
2168
2169 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
2170 {
2171 f = uentry_getType (gc.cont.fcn);
2172 }
2173 else if (gc.kind == CX_UNKNOWNMACRO)
2174 {
2175 return ctype_unknown;
2176 }
2177 else
2178 {
2179 llcontbuglit ("context_getRetType: not in a function context");
2180 return ctype_unknown;
2181 }
2182
2183 if (!ctype_isFunction (f))
2184 {
2185 if (ctype_isKnown (f))
2186 {
2187 llbuglit ("context_getRetType: not a function");
2188 }
2189
2190 return ctype_unknown;
2191 }
28bf4b0b 2192 return (ctype_getReturnType (f));
616915dd 2193}
2194
2195bool
2196context_hasMods (void)
2197{
2198 if (context_inFunctionLike ())
2199 {
2200 return (uentry_hasMods (gc.cont.fcn));
2201 }
2202 else
2203 {
2204 return FALSE;
2205 }
2206}
2207
2208void
2209context_exitAllClauses (void)
28bf4b0b 2210{
616915dd 2211 while (!clauseStack_isEmpty (gc.clauses))
2212 {
2213 clause el = clauseStack_top (gc.clauses);
616915dd 2214 gc.inclause = el;
2215
2216 if (clause_isNone (el))
2217 {
2218 usymtab_quietExitScope (g_currentloc);
2219 clauseStack_pop (gc.clauses);
2220 }
2221 else
2222 {
2223 context_exitClausePlain ();
2224 }
2225 }
2226
28bf4b0b 2227 clauseStack_clear (gc.clauses);
2228 gc.inclause = NOCLAUSE;
2229}
616915dd 2230
28bf4b0b 2231void
2232context_exitAllClausesQuiet (void)
2233{
2234 while (!clauseStack_isEmpty (gc.clauses))
2235 {
2236 clause el = clauseStack_top (gc.clauses);
2237 gc.inclause = el;
2238
2239 usymtab_quietExitScope (g_currentloc);
2240 clauseStack_pop (gc.clauses);
2241 }
2242
2243 clauseStack_clear (gc.clauses);
616915dd 2244 gc.inclause = NOCLAUSE;
2245}
2246
2247static
2248void context_exitClauseSimp (void)
2249{
2250
2251 context_setJustPopped ();
2252 clauseStack_pop (gc.clauses);
2253 gc.inclause = topClause (gc.clauses);
2254}
2255
2256static
2257void context_exitCaseClause (void)
2258{
2259 context_setJustPopped ();
2260 usymtab_popCaseBranch ();
2261 clauseStack_pop (gc.clauses);
2262 gc.inclause = topClause (gc.clauses);
2263}
2264
2265static
2266void context_exitClauseAux (exprNode pred, exprNode tbranch)
2267{
2268 context_setJustPopped ();
28bf4b0b 2269 /*@i32 was makeAlt */
616915dd 2270 usymtab_popTrueBranch (pred, tbranch, gc.inclause);
2271 clauseStack_pop (gc.clauses);
2272 gc.inclause = topClause (gc.clauses);
2273}
2274
2275void context_exitTrueClause (exprNode pred, exprNode tbranch)
2276{
28bf4b0b 2277 DPRINTF (("Exit true clause: %s", exprNode_unparse (tbranch)));
2278
616915dd 2279 if (gc.inclause != TRUECLAUSE)
2280 {
2281 llparseerror (cstring_makeLiteral
2282 ("Likely parse error. Conditional clauses are inconsistent."));
2283 return;
2284 }
28bf4b0b 2285
2286 context_setJustPopped ();
616915dd 2287 usymtab_popTrueBranch (pred, tbranch, TRUECLAUSE);
2288 clauseStack_pop (gc.clauses);
28bf4b0b 2289 gc.inclause = topClause (gc.clauses);
2290}
616915dd 2291
2292void context_exitIterClause (exprNode body)
2293{
2294 llassert (gc.inclause == ITERCLAUSE);
2295
2296 context_setJustPopped ();
2297
3e3ec469 2298 if (context_getFlag (FLG_ITERLOOPEXEC))
616915dd 2299 {
2300 usymtab_popTrueExecBranch (exprNode_undefined, body, ITERCLAUSE);
2301 }
2302 else
2303 {
2304 usymtab_popTrueBranch (exprNode_undefined, body, ITERCLAUSE);
2305 }
2306
2307 clauseStack_pop (gc.clauses);
2308 gc.inclause = topClause (gc.clauses);
2309}
2310
2311static void context_popCase (void) {
2312 /*
2313 ** If we are exiting an outer clause, sometimes still in a switch case.
2314 **
2315 ** e.g.:
2316 **
2317 ** switch(a)
2318 ** {
2319 ** case 1:
2320 ** while (c>3)
2321 ** {
2322 ** case 3: ++c;
2323 ** }
2324 ** }
2325 */
2326
2327 DPRINTF (("Popping case clause: %s",
2328 clauseStack_unparse (gc.clauses)));
28bf4b0b 2329
616915dd 2330 if (gc.inclause == CASECLAUSE) {
2331 context_exitCaseClause ();
2332 }
2333}
2334
2335void context_exitWhileClause (exprNode pred, exprNode body)
2336{
2337 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2338
2339 context_popCase ();
2340
2341 if (gc.inclause != WHILECLAUSE) {
2342 DPRINTF (("Clause: %s / %s", clause_unparse (gc.inclause),
2343 clauseStack_unparse (gc.clauses)));
2344 }
2345
2346 llassert (gc.inclause == WHILECLAUSE);
2347
2348 context_setJustPopped ();
2349
2350
2351 /*
2352 ** predicate must be false after while loop (unless there are breaks)
2353 */
2354
3e3ec469 2355 if (context_getFlag (FLG_WHILELOOPEXEC))
616915dd 2356 {
2357 usymtab_popTrueExecBranch (pred, body, WHILECLAUSE);
2358 }
2359 else
2360 {
2361 usymtab_popTrueBranch (pred, body, WHILECLAUSE);
2362 }
2363
2364
2365 usymtab_addGuards (invGuards);
2366 guardSet_free (invGuards);
2367
2368 clauseStack_pop (gc.clauses);
2369 gc.inclause = topClause (gc.clauses);
2370}
2371
2372void context_exitDoWhileClause (exprNode pred)
2373{
2374 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2375
2376 if (gc.inclause == CASECLAUSE) {
2377 /* handle Duff's device */
2378 clauseStack_pop (gc.clauses);
2379 gc.inclause = topClause (gc.clauses);
2380 }
2381
2382 llassert (gc.inclause == DOWHILECLAUSE);
2383
2384 context_setJustPopped ();
2385
2386
2387 usymtab_addGuards (invGuards);
2388 guardSet_free (invGuards);
2389
2390 clauseStack_pop (gc.clauses);
2391 gc.inclause = topClause (gc.clauses);
2392}
2393
2394void context_exitForClause (exprNode forPred, exprNode body)
2395{
2396 guardSet invGuards = guardSet_invert (exprNode_getForGuards (forPred));
2397
2398 llassert (gc.inclause == FORCLAUSE);
2399 context_setJustPopped ();
2400
3e3ec469 2401 DPRINTF (("Exit for: %s / %s", exprNode_unparse (forPred), exprNode_unparse (body)));
2402
616915dd 2403 /*
3e3ec469 2404 ** Predicate must be false after for loop (unless there are breaks)
616915dd 2405 */
2406
3e3ec469 2407 if (context_getFlag (FLG_FORLOOPEXEC))
616915dd 2408 {
3e3ec469 2409 DPRINTF (("Here: for loop exec"));
28bf4b0b 2410 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
616915dd 2411 }
2412 else
2413 {
3e3ec469 2414 if (context_getFlag (FLG_OBVIOUSLOOPEXEC)
2415 && exprNode_loopMustExec (forPred))
2416 {
2417 DPRINTF (("Here: loop must exec"));
2418 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
2419 }
2420 else
2421 {
2422 DPRINTF (("Pop true branch:"));
2423 usymtab_popTrueBranch (forPred, body, FORCLAUSE);
2424 }
616915dd 2425 }
2426
2427 usymtab_addGuards (invGuards);
2428 guardSet_free (invGuards);
2429 clauseStack_pop (gc.clauses);
2430 gc.inclause = topClause (gc.clauses);
2431}
2432
2433static void context_exitClausePlain (void)
2434{
2435 llassert (gc.inclause != NOCLAUSE);
2436
2437 if (gc.inclause == FALSECLAUSE)
2438 {
2439 context_exitClause (exprNode_undefined, exprNode_undefined, exprNode_undefined);
2440 }
2441 else
2442 {
2443 context_exitClauseAux (exprNode_undefined, exprNode_undefined);
2444 }
616915dd 2445}
2446
2447void context_exitClause (exprNode pred, exprNode tbranch, exprNode fbranch)
2448{
616915dd 2449 context_setJustPopped ();
28bf4b0b 2450
616915dd 2451 if (gc.inclause == FALSECLAUSE)
2452 {
2453 usymtab_popBranches (pred, tbranch, fbranch, FALSE, FALSECLAUSE);
28bf4b0b 2454
616915dd 2455 llassert (clauseStack_top (gc.clauses) == FALSECLAUSE);
2456
2457 clauseStack_pop (gc.clauses);
2458 gc.inclause = topClause (gc.clauses);
2459 }
2460 else
2461 {
28bf4b0b 2462 context_exitTrueClause (pred, tbranch);
616915dd 2463 }
2464}
2465
2466void
2467context_returnFunction (void)
2468{
2469 usymtab_checkFinalScope (TRUE);
2470}
2471
2472void
2473context_exitFunction (void)
2474{
b7e84605 2475 DPRINTF (("Exit function: %s", context_unparse ()));
2476
616915dd 2477 if (!context_inFunction () && !context_inMacroConstant ()
b7e84605 2478 && !context_inUnknownMacro ()
616915dd 2479 && !context_inIterDef () && !context_inIterEnd ())
2480 {
2481 /*
2482 ** not a bug because of parse errors
2483 */
b7e84605 2484
2485 BADBRANCH;
616915dd 2486 }
2487 else
2488 {
2489 if (context_inMacro () && usymtab_inFunctionScope ())
2490 {
2491 usymtab_exitScope (exprNode_undefined);
2492 }
2493
2494 if (uentry_hasGlobs (gc.cont.fcn))
2495 {
2496 exprChecks_checkUsedGlobs (gc.globs, gc.globs_used);
2497 }
2498
2499
2500 if (uentry_hasMods (gc.cont.fcn))
2501 {
2502 if (context_getFlag (FLG_MUSTMOD))
2503 {
2504 exprNode_checkAllMods (gc.mods, gc.cont.fcn);
2505 }
2506 }
2507
28bf4b0b 2508 DPRINTF (("Exit function: %s", uentry_unparse (gc.cont.fcn)));
2509
616915dd 2510 /*
2511 ** clear file static modifies
2512 */
2513
2514 /* do this first to get unused error messages */
2515
2516 usymtab_exitScope (exprNode_undefined);
2517 sRef_exitFunctionScope ();
2518
2519 gc.showfunction = FALSE;
2520 gc.kind = CX_GLOBAL;
2521 gc.cont.glob = TRUE;
2522 gc.acct = gc.facct;
2523 gc.globs = globSet_new ();
2524 globSet_clear (gc.globs_used);
2525 gc.mods = sRefSet_new ();
2526 }
2527
2528 llassert (clauseStack_isEmpty (gc.clauses));
2529 llassert (gc.inclause == NOCLAUSE);
b7e84605 2530 DPRINTF (("After exit function: %s", context_unparse ()));
616915dd 2531}
2532
2533void
2534context_quietExitFunction (void)
2535{
2536 while (gc.kind == CX_INNER)
2537 {
2538 context_exitInnerPlain ();
2539 }
2540
b7e84605 2541 if (!context_inFunction () && !context_inMacroConstant () && !context_inUnknownMacro ()
616915dd 2542 && !context_inIterDef () && !context_inIterEnd ())
2543 {
2544 }
2545 else
2546 {
2547 usymtab_quietExitScope (g_currentloc);
2548
2549 gc.showfunction = FALSE;
2550 gc.kind = CX_GLOBAL;
2551 gc.cont.glob = TRUE;
2552 gc.acct = gc.facct;
2553 gc.globs = globSet_new ();
2554 globSet_clear (gc.globs_used);
2555 gc.mods = sRefSet_new ();
2556
2557 sRef_exitFunctionScope ();
2558 }
2559}
2560
2561/*@observer@*/ uentryList
2562context_getParams (void)
2563{
2564 if (context_inFunctionLike ())
2565 {
2566 return (uentry_getParams (gc.cont.fcn));
2567 }
2568 else
2569 {
2570 llcontbug (message ("context_getParams: not in function: %q", context_unparse ()));
2571 return uentryList_undefined;
2572 }
2573}
2574
2575/*@observer@*/ globSet
2576context_getUsedGlobs (void)
2577{
2578 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2579 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2580
2581 return (gc.globs_used);
2582}
2583
2584cstring
2585context_moduleName ()
2586{
2587 return (fileloc_getBase (g_currentloc));
2588}
2589
2590/*@observer@*/ globSet
2591context_getGlobs (void)
2592{
2593 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2594 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2595
2596 return (gc.globs);
2597}
2598
2599void
2600context_addBoolAccess (void)
2601{
2602 cstring bname = context_getString (FLG_BOOLTYPE);
2603 typeIdSet boolt = typeIdSet_single (usymtab_getTypeId (bname));
2604
2605 addModuleAccess (cstring_copy (bname), boolt);
2606
2607 /* for sys/types (perhaps, this is bogus!) */
2608 addModuleAccess (cstring_makeLiteral ("types"), boolt);
2609}
2610
2611# if 0
2612bool
2613context_canAccessBool (void)
2614{
2615 return TRUE;
2616}
2617# endif
2618
2619/*
2620 static typeId boolType = typeId_invalid;
2621
2622 if (typeId_isInvalid (boolType))
2623 {
2624 boolType = usymtab_getTypeId (context_getBoolName ());
2625 }
2626
2627 if (typeId_isInvalid (boolType)) {
2628 return FALSE;
2629 } else {
2630 return (typeIdSet_member (gc.acct, boolType));
2631 }
2632}
2633*/
2634
2635/* evs 2000-07-25: old version - replaced */
2636
2637ctype
2638context_boolImplementationType () {
2639 /* For now, this is bogus! */
2640 return ctype_int;
2641}
2642
2643bool
2644context_canAccessBool (void)
2645{
2646 static typeId boolType = typeId_invalid;
2647
2648 if (typeId_isInvalid (boolType))
2649 {
2650 boolType = usymtab_getTypeId (context_getBoolName ());
2651 }
2652
2653 if (!typeId_isInvalid (boolType))
2654 {
2655 return context_hasAccess (boolType);
2656 }
2657 else
2658 {
2659 ;
2660 }
2661
2662 return FALSE;
2663}
2664
2665void
2666context_setMessageAnnote (/*@only@*/ cstring s)
2667{
2668 llassert (cstring_isUndefined (gc.msgAnnote));
2669 gc.msgAnnote = s;
2670}
2671
2672bool
2673context_hasMessageAnnote (void)
2674{
2675 return (cstring_isDefined (gc.msgAnnote));
2676}
2677
2678void
2679context_clearMessageAnnote (void)
2680{
2681 if (cstring_isDefined (gc.msgAnnote))
2682 {
2683 cstring_free (gc.msgAnnote);
2684 gc.msgAnnote = cstring_undefined;
2685 }
2686}
2687
2688/*@only@*/ cstring
2689context_getMessageAnnote (void)
2690{
2691 cstring st = gc.msgAnnote;
2692
2693 gc.msgAnnote = cstring_undefined;
2694 return st;
2695}
2696
2697void
2698context_setAliasAnnote (/*@observer@*/ sRef s, /*@observer@*/ sRef t)
2699{
2700 llassert (sRef_isInvalid (gc.aliasAnnote));
2701 llassert (!sRef_sameName (s, t));
2702 gc.aliasAnnote = s;
2703 gc.aliasAnnoteAls = t;
2704}
2705
2706bool
2707context_hasAliasAnnote (void)
2708{
2709 return (sRef_isValid (gc.aliasAnnote));
2710}
2711
2712void
2713context_clearAliasAnnote (void)
2714{
2715 gc.aliasAnnote = sRef_undefined;
2716}
2717
2718cstring
2719context_getAliasAnnote (void)
2720{
2721 sRef ret = gc.aliasAnnote;
2722 sRef als = gc.aliasAnnoteAls;
2723
2724 llassert (sRef_isValid (ret) && sRef_isValid (als));
2725
2726 gc.aliasAnnote = sRef_undefined;
2727 return (message ("%q aliases %q", sRef_unparse (als), sRef_unparse (ret)));
2728}
2729
2730void
2731context_recordFileModifies (sRefSet mods)
2732{
28bf4b0b 2733 gc.modrecs = sRefSetList_add (gc.modrecs, mods);
616915dd 2734}
2735
2736void
2737context_recordFileGlobals (globSet mods)
2738{
28bf4b0b 2739 DPRINTF (("Recording file globals: %s", globSet_unparse (mods)));
2740 /*@access globSet@*/ context_recordFileModifies (mods); /*@noaccess globSet@*/
616915dd 2741}
2742
2743void
2744context_setCommentMarkerChar (char c)
2745{
2746 llassert (c != '\0');
2747
2748 context_setValue (FLG_COMMENTCHAR, (int) c);
2749}
2750
2751char
2752context_getCommentMarkerChar (void)
2753{
2754 return ((char) context_getValue (FLG_COMMENTCHAR));
2755}
2756
2757static void
2758context_setValue (flagcode flag, int val)
2759{
2760 int index = flagcode_valueIndex (flag);
2761
2762 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2763
28bf4b0b 2764 switch (flag)
616915dd 2765 {
28bf4b0b 2766 case FLG_LINELEN:
2767 if (val <= 0)
616915dd 2768 {
28bf4b0b 2769
abb1cb43 2770 llerror_flagWarning (message ("Value for %s must be a positive "
2771 "number (given %d)",
2772 flagcode_unparse (flag), val));
616915dd 2773 return;
616915dd 2774 }
28bf4b0b 2775 if (flag == FLG_LINELEN && val < MINLINELEN)
2776 {
abb1cb43 2777 llerror_flagWarning (message ("Value for %s must be at least %d (given %d)",
2778 flagcode_unparse (flag),
2779 MINLINELEN, val));
28bf4b0b 2780 val = MINLINELEN;
2781 }
2782 break;
616915dd 2783
28bf4b0b 2784 case FLG_INCLUDENEST:
2785 case FLG_CONTROLNESTDEPTH:
2786 case FLG_STRINGLITERALLEN:
2787 case FLG_NUMSTRUCTFIELDS:
2788 case FLG_NUMENUMMEMBERS:
2789 case FLG_INDENTSPACES:
2790 if (val < 0)
2791 {
abb1cb43 2792 llerror_flagWarning (message ("Value for %s must be a non-negative "
a956d444 2793 "number (given %d)",
2794 flagcode_unparse (flag), val));
28bf4b0b 2795 return;
2796 }
616915dd 2797
28bf4b0b 2798 break;
2799 default:
2800 break;
2801 }
982cc10b 2802
2803 DPRINTF (("Set value [%s] %d = %d", flagcode_unparse (flag), index, val));
28bf4b0b 2804 gc.values[index] = val;
616915dd 2805}
2806
2807void
2808context_setValueAndFlag (flagcode flag, int val)
2809{
2810 gc.flags[flag] = TRUE;
2811 context_setValue (flag, val);
2812}
2813
2814int
2815context_getValue (flagcode flag)
2816{
2817 int index = flagcode_valueIndex (flag);
2818
2819 llassert (index >= 0 && index <= NUMVALUEFLAGS);
982cc10b 2820 DPRINTF (("Get value [%s] %d = %d", flagcode_unparse (flag), index, gc.values[index]));
616915dd 2821 return (gc.values[index]);
2822}
2823
2824int
2825context_getCounter (flagcode flag)
2826{
2827 int index = flagcode_valueIndex (flag);
2828
2829 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2830 return (gc.counters[index]);
2831}
2832
2833void
2834context_incCounter (flagcode flag)
2835{
2836 int index = flagcode_valueIndex (flag);
2837
2838 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2839 /* check limit */
2840 gc.counters[index]++;
2841}
2842
2843void
2844context_decCounter (flagcode flag)
2845{
2846 int index = flagcode_valueIndex (flag);
2847
2848 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2849 gc.counters[index]--;
2850}
2851
2852bool context_showFunction (void)
2853{
2854 return (gc.showfunction);
2855}
2856
2857void
2858context_setString (flagcode flag, cstring val)
2859{
2860 int index = flagcode_stringIndex (flag);
2861
2862 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2863
2864 if (flag == FLG_SYSTEMDIRS)
2865 {
2866 llassert (cstring_isDefined (val));
2867
2868 if (cstring_firstChar (val) == '\"')
2869 {
2870 cstring oval = val;
2871 cstring tval = cstring_copy (cstring_suffix (val, 1));
2872
2873 if (cstring_lastChar (tval) != '\"')
2874 {
2875 int n = cstring_length (tval) - 1;
2876
2877 while (isspace ((int) cstring_getChar (tval, n)))
2878 {
2879 n--;
2880 }
2881
2882 if (cstring_getChar (tval, n) != '\"')
2883 {
abb1cb43 2884 llerror_flagWarning (message ("Setting -systemdirs to string with unmatching quotes: %s", val));
616915dd 2885 }
2886 else
2887 {
2888 cstring otval = tval;
2889 tval = cstring_prefix (tval, n);
2890 cstring_free (otval);
2891 }
2892 }
2893
2894 val = cstring_copy (cstring_clip (tval, cstring_length (tval) - 1));
2895 DPRINTF (("val = %s", val));
2896 cstring_free (tval);
2897 cstring_free (oval);
2898 }
2899 }
2900
2901 if (flag == FLG_TMPDIR)
2902 {
2903 llassert (cstring_isDefined (val));
2904
2905 if (cstring_length (val) == 0)
2906 {
2907 cstring_free (val);
2908 val = message (".%s", cstring_makeLiteralTemp (CONNECTSTR));
2909 }
2910 else if (cstring_lastChar (val) != CONNECTCHAR)
2911 {
2912 val = cstring_appendChar (val, CONNECTCHAR);
2913 }
2914 else
2915 {
2916 ;
2917 }
2918 }
2919
2920 if (cstring_length (val) >= 1
ee229125 2921 && cstring_firstChar (val) == '\"')
616915dd 2922 {
abb1cb43 2923 llerror_flagWarning (message
2924 ("setting %s to string beginning with \". You probably "
2925 "don't meant to have the \"'s.",
2926 flagcode_unparse (flag)));
616915dd 2927 }
2928
2929 if (flag == FLG_BOOLTYPE)
2930 {
2931
2932 }
2933
2934 gc.strings[index] = val;
2935}
2936
2937static /*@exposed@*/ cstring
2938context_exposeString (flagcode flag)
2939{
2940 int index = flagcode_stringIndex (flag);
2941
2942 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2943 return (gc.strings[index]);
2944}
2945
2946cstring
2947context_getString (flagcode flag)
2948{
2949 return (context_exposeString (flag));
2950}
2951
2952void
2953context_resetErrors (void)
2954{
2955 gc.numerrors = 0;
2956}
2957
2958void context_initMod (void)
2959 /*@globals undef gc; @*/
2960{
2961 gc.kind = CX_GLOBAL;
b7e84605 2962
28bf4b0b 2963 gc.savekind = CX_ERROR;
b7e84605 2964 gc.savecont.glob = FALSE;
2965
616915dd 2966 gc.instandardlib = FALSE;
2967 gc.numerrors = 0;
2968 gc.neednl = FALSE;
2969 gc.linesprocessed = 0;
2970 gc.speclinesprocessed = 0;
2971 gc.insuppressregion = FALSE;
2972 gc.macroMissingParams = FALSE;
2973 gc.preprocessing = FALSE;
2974 gc.incommandline = FALSE;
2975 gc.mc = macrocache_create ();
2976 gc.nmods = 0;
2977 gc.maxmods = DEFAULTMAXMODS;
28bf4b0b 2978 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
2979
616915dd 2980 gc.library = FLG_ANSILIB;
2981
2982 gc.locstack = filelocStack_new ();
2983 gc.modrecs = sRefSetList_undefined;
2984 gc.anyExports = FALSE;
2985
2986 gc.ftab = fileTable_create ();
2987 gc.msgLog = messageLog_new ();
2988 gc.inimport = FALSE;
2989 gc.inDerivedFile = FALSE;
2990 gc.inheader = FALSE;
2991 gc.markers = flagMarkerList_new ();
2992 gc.cont.glob = TRUE;
2993 gc.showfunction = FALSE;
2994 gc.msgAnnote = cstring_undefined;
2995 gc.aliasAnnote = sRef_undefined;
2996 gc.aliasAnnoteAls = sRef_undefined;
2997 gc.boolType = ctype_bool;
2998 gc.mods = sRefSet_new ();
2999
3000 gc.saveloc = fileloc_undefined;
3001
3002 gc.inmacrocache = FALSE;
3003 gc.inclause = NOCLAUSE;
3004 gc.clauses = clauseStack_new ();
3005 gc.globs = globSet_new ();
3006 gc.nacct = typeIdSet_emptySet ();
3007 gc.acct = typeIdSet_emptySet ();
3008 gc.facct = typeIdSet_emptySet ();
3009 gc.savedFlags = FALSE;
3010 gc.pushloc = fileloc_undefined;
3011 gc.protectVars = FALSE;
3012 gc.justpopped = FALSE;
3013 gc.isNullGuarded = NO;
3014 gc.globs_used = globSet_undefined;
3015
3016 allFlagCodes (code)
3017 {
3018 gc.setGlobally[code] = FALSE;
3019 gc.setLocally[code] = FALSE;
982cc10b 3020 }
3021 end_allFlagCodes ;
3022
616915dd 3023 usymtab_initMod ();
3024
3025 context_resetAllFlags ();
982cc10b 3026
3120b462 3027 assertSet (gc.flags); /* Can't use global in defines */
3028 assertSet (gc.saveflags);
3029 assertSet (gc.values);
3030 assertSet (gc.strings);
982cc10b 3031
616915dd 3032 conext_resetAllCounters ();
3120b462 3033 assertSet (gc.counters);
3034
616915dd 3035 context_setMode (DEFAULT_MODE);
28bf4b0b 3036
3037 gc.stateTable = metaStateTable_create ();
3038 gc.annotTable = annotationTable_create ();
3039
d9a28762 3040 gc.inFunctionHeader = FALSE;
3041
28bf4b0b 3042 DPRINTF (("Annotations: \n%s",
3043 cstring_toCharsSafe (annotationTable_unparse (gc.annotTable))));
3044 DPRINTF (("State: \n%s",
3045 cstring_toCharsSafe (metaStateTable_unparse (gc.stateTable))));
3046
616915dd 3047}
3048
3049ctype
3050context_typeofZero (void)
3051{
3052 ctype ct = ctype_int;
3053
3054 if (context_getFlag (FLG_ZEROPTR))
3055 {
3056 ct = ctype_makeConj (ct, ctype_voidPointer);
3057 }
3058
3059 if (context_getFlag (FLG_ZEROBOOL)) {
3060 ct = ctype_makeConj (ct, ctype_bool);
3061 }
3062
3063 return ct;
3064}
3065
3066ctype
3067context_typeofOne (void)
3068{
3069 ctype ct = ctype_int;
3070
3071 /* 1 is on longer a bool (was before 2.4)
3072 if (!context_getFlag (FLG_ABSTRACTBOOL))
3073 {
3074 ct = ctype_makeConj (ct, ctype_bool);
3075 }
3076 */
3077
3078 return (ct);
3079}
3080
3081/*@only@*/ cstring
3082context_unparse (void)
3083{
3084 cstring s;
3085
3086 switch (gc.kind)
3087 {
3088 case CX_LCL:
3089 s = message ("LCL File: %q", fileloc_unparse (g_currentloc));
3090 break;
3091 case CX_LCLLIB:
3092 s = message ("LCL Lib File: %q", fileloc_unparse (g_currentloc));
3093 break;
3094 case CX_GLOBAL:
3095 s = message ("Global Context:%q", fileloc_unparse (g_currentloc));
3096 break;
3097 case CX_INNER:
b7e84605 3098 s = message ("Inner Context [%d] : %q",
3099 gc.cont.cdepth,
3100 fileloc_unparse (g_currentloc));
616915dd 3101 break;
3102 case CX_FUNCTION:
3103 s = message ("Function %q :%q \n\taccess %q\n\tmodifies %q",
3104 uentry_unparse (gc.cont.fcn),
3105 fileloc_unparse (g_currentloc),
3106 typeIdSet_unparse (gc.acct),
3107 sRefSet_unparse (gc.mods));
3108 break;
3109 case CX_MACROFCN:
3110 s = message ("Function Macro %q", uentry_unparse (gc.cont.fcn));
3111 break;
3112 case CX_UNKNOWNMACRO:
3113 s = message ("Forward Specified Macro %q", uentry_unparse (gc.cont.fcn));
3114 break;
3115 case CX_MACROCONST:
3116 s = message ("Constant Macro %q", uentry_unparse (gc.cont.fcn));
3117 break;
3118 case CX_ITERDEF:
3119 s = message ("Iter definition %q", uentry_unparse (gc.cont.fcn));
3120 break;
3121 case CX_ITEREND:
3122 s = message ("Iter end %q", uentry_unparse (gc.cont.fcn));
3123 break;
b7e84605 3124 case CX_FCNDECLARATION:
3125 s = message ("Function declaration %q", uentry_unparse (gc.cont.fcn));
3126 break;
616915dd 3127 default:
3128 s = message ("Un-unparseable context: %d", (int) gc.kind);
3129 break;
3130 }
3131
3132 s = message ("%q\naccess: %q", s, context_unparseAccess ());
3133 return (s);
3134}
3135
3136extern ctype
3137context_currentFunctionType (void)
3138{
3139 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
3140 {
3141 return (uentry_getType (gc.cont.fcn));
3142 }
3143 else if (gc.kind == CX_INNER)
3144 {
3145 llcontbuglit ("context_currentFunctionType: inner context");
3146 do { context_exitInnerPlain (); } while (gc.kind == CX_INNER);
3147 return (context_currentFunctionType ());
3148 }
3149 else
3150 {
3151 llcontbuglit ("context_currentFunctionType: not in function");
3152 return (ctype_undefined);
3153 }
3154}
3155
3156void
3157context_enterInnerContext (void)
3158{
b7e84605 3159 if (context_getFlag (FLG_GRAMMAR))
3160 {
3161 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3162 }
3163
616915dd 3164 if (gc.kind == CX_GLOBAL)
3165 {
3166 gc.kind = CX_INNER;
3167 gc.cont.cdepth = 1;
3168 }
3169 else if (gc.kind == CX_INNER)
3170 {
3171 gc.cont.cdepth++;
3172 }
3173 else
3174 {
3175 ;
3176 }
3177
616915dd 3178 usymtab_enterScope ();
3179 pushClause (NOCLAUSE);
3180}
3181
3182void
3183context_exitInnerPlain (void) /*@modifies gc;@*/
3184{
3185 context_exitInner (exprNode_undefined);
3186}
3187
3188void
3189context_exitInner (exprNode exp)
3190{
b7e84605 3191 if (context_getFlag (FLG_GRAMMAR))
3192 {
3193 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3194 }
3195
616915dd 3196 llassertprint (gc.inclause == NOCLAUSE || gc.inclause == CASECLAUSE,
3197 ("inclause = %s", clause_nameTaken (gc.inclause)));
3198
3199 clauseStack_removeFirst (gc.clauses, NOCLAUSE);
3200 gc.inclause = topClause (gc.clauses);
3201
3202 if (gc.kind == CX_INNER)
3203 {
3204 if (--gc.cont.cdepth == 0)
3205 {
3206 gc.kind = CX_GLOBAL;
3207 gc.cont.glob = TRUE;
3208 }
3209 }
3210 else
3211 {
3212 if (gc.kind == CX_GLOBAL)
3213 {
3214 llcontbuglit ("Attempt to exit global context");
3215 return;
3216 }
3217 }
3218
3219 usymtab_exitScope (exp);
3220}
3221
3222
3223void
3224context_enterStructInnerContext (void)
3225{
b7e84605 3226 if (context_getFlag (FLG_GRAMMAR))
3227 {
3228 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3229 }
3230
616915dd 3231 if (gc.kind == CX_GLOBAL)
3232 {
3233 gc.kind = CX_INNER;
3234 gc.cont.cdepth = 1;
3235 }
3236 else if (gc.kind == CX_INNER)
3237 {
3238 gc.cont.cdepth++;
3239 }
3240 else
3241 {
3242 ;
3243 }
3244
3245 usymtab_enterScope ();
b7e84605 3246
3247 if (context_getFlag (FLG_GRAMMAR))
3248 {
3249 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3250 }
616915dd 3251}
3252
3253void
3254context_exitStructInnerContext (void)
3255{
b7e84605 3256 if (context_getFlag (FLG_GRAMMAR))
3257 {
3258 lldiagmsg (message ("Exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3259 }
3260
616915dd 3261 if (gc.kind == CX_INNER)
3262 {
b7e84605 3263 if (gc.cont.cdepth <= 0)
616915dd 3264 {
b7e84605 3265 llcontbuglit ("Attempt to exit inner context with no depth");
616915dd 3266 gc.kind = CX_GLOBAL;
3267 gc.cont.glob = TRUE;
b7e84605 3268 gc.cont.cdepth = 0;
616915dd 3269 }
b7e84605 3270 else {
3271 gc.cont.cdepth--;
3272
3273 if (gc.cont.cdepth == 0)
3274 {
3275 gc.kind = CX_GLOBAL;
3276 gc.cont.glob = TRUE;
3277 }
3278 }
616915dd 3279 }
3280 else
3281 {
3282 if (gc.kind == CX_GLOBAL)
3283 {
3284 llcontbuglit ("Attempt to exit global context");
3285 return;
3286 }
3287 }
3288
3289 usymtab_exitScope (exprNode_undefined);
b7e84605 3290
3291 if (context_getFlag (FLG_GRAMMAR))
3292 {
3293 lldiagmsg (message ("After exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3294 }
616915dd 3295}
3296
3297void
3298context_exitInnerSafe (void)
3299{
b7e84605 3300 if (context_getFlag (FLG_GRAMMAR))
3301 {
3302 lldiagmsg (message ("Exit inner safe: %q", context_unparse ()));
3303 }
3304
616915dd 3305 if (gc.kind == CX_INNER)
3306 {
b7e84605 3307 if (--gc.cont.cdepth <= 0)
616915dd 3308 {
b7e84605 3309 gc.cont.cdepth = 0;
616915dd 3310 }
3311 }
3312 else if (gc.kind == CX_GLOBAL)
3313 {
3314 llcontbuglit ("Attempt to exit global context");
3315 return;
3316 }
3317 else
3318 {
3319 if (usymtab_inDeepScope ())
3320 {
3321 usymtab_exitScope (exprNode_undefined);
3322 }
3323 }
3324}
3325
3326static
3327void setModuleAccess (void)
3328{
3329 gc.facct = typeIdSet_emptySet ();
3330
3331 if (fileId_isValid (currentFile ()))
3332 {
3333 cstring baseName = fileloc_getBase (g_currentloc);
3334
3335 if (context_getFlag (FLG_ACCESSFILE))
3336 {
3337 if (usymtab_existsType (baseName))
3338 {
3339 gc.facct = typeIdSet_insert (gc.facct,
3340 usymtab_getTypeId (baseName));
3341 }
3342 else
3343 {
3344 ;
3345 }
3346 }
3347
3348 if (context_getFlag (FLG_ACCESSMODULE))
3349 {
3350 int i;
3351 bool hasaccess = FALSE;
3352
3353 for (i = 0; i < gc.nmods; i++)
3354 {
3355 if (cstring_equal (baseName, gc.moduleaccess[i].file))
3356 {
3357 gc.facct = typeIdSet_union (gc.facct, gc.moduleaccess[i].daccess);
3358
3359 hasaccess = TRUE;
3360 break;
3361 }
3362 }
3363 }
3364
3365 gc.acct = gc.facct;
3366 gc.inheader = fileId_isHeader (currentFile ());
3367 }
3368 else
3369 {
3370 llcontbuglit ("Current file not defined\n");
3371 gc.facct = typeIdSet_emptySet ();
3372 gc.acct = gc.facct;
3373 gc.inheader = FALSE;
3374 }
3375
3376 /* 17 Jan 1995: forgot to clear nacct */
3377
3378 gc.nacct = typeIdSet_emptySet ();
3379}
3380
3381static void
3382context_enterFileAux (void)
3383{
3384 setModuleAccess ();
3385}
3386
3387void
3388context_enterFile (void)
3389{
3390 context_enterFileAux ();
3391 usymtab_enterFile ();
3392}
3393
3394void
3395context_enterMacroFile (void)
3396{
3397 context_enterFileAux ();
3398}
3399
3400bool
3401context_inFunction (void)
3402{
3403 kcontext ck = gc.kind;
3404
3405 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN) || (ck == CX_INNER));
3406}
3407
3408bool
3409context_inFunctionLike (void)
3410{
3411 return (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
28bf4b0b 3412 || gc.kind == CX_FCNDECLARATION
616915dd 3413 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
3414}
3415
3416bool
3417context_inRealFunction (void)
3418{
3419 kcontext ck = gc.kind;
3420
3421 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN));
3422}
3423
3424void
3425context_processAllMacros (void)
3426{
3427 usymtab_enterFile ();
3428
3429 gc.inmacrocache = TRUE;
3430 macrocache_processUndefinedElements (gc.mc);
3431 cleanupMessages ();
3432 usymtab_exitFile ();
3433
3434 gc.inmacrocache = FALSE;
3435 macrocache_finalize ();
3436}
3437
3438/*
3439** this happens once at the end of each C file
3440**
3441** check each Macro that was defined in current file.c or current file.h
3442**
3443*/
3444
3445static void
3446context_processMacros (void)
3447{
3448 if (fileId_isValid (currentFile ()))
3449 {
3450 fileloc lastfl;
28bf4b0b 3451 cstring cbase = fileLib_removePathFree (fileLib_removeAnyExtension (fileName (currentFile ())));
616915dd 3452
3453 gc.inmacrocache = TRUE;
3454
3455 DPRINTF (("Processing macros: %s", cbase));
3456 lastfl = macrocache_processFileElements (gc.mc, cbase);
3457 DPRINTF (("Processing macros: %s", fileloc_unparse (lastfl)));
3458
3459 cstring_free (cbase);
3460
3461 if (fileloc_isDefined (lastfl))
3462 {
3463 g_currentloc = fileloc_update (g_currentloc, lastfl);
3464 cleanupMessages ();
3465 }
3466
3467 gc.inmacrocache = FALSE;
3468 }
3469}
3470
3471bool
3472context_processingMacros (void)
3473{
3474 return (gc.inmacrocache);
3475}
3476
3477void
28bf4b0b 3478context_exitCFile (void)
616915dd 3479{
3480 if (gc.kind != CX_GLOBAL)
3481 {
3482 llfatalerrorLoc
3483 (cstring_makeLiteral ("File ended outside global scope"));
3484 }
3485
3486 if (gc.insuppressregion)
3487 {
3488 /* gack...don't reverse the order of these lines! ;-> */
3489 gc.insuppressregion = FALSE;
3490 llerrorlit (FLG_SYNTAX,
3491 "File ended in ignore errors region, "
3492 "possible missing /*@end*/");
3493 }
3494
3495 /* fix up parse errors */
3496
3497 while (!usymtab_inFileScope ())
3498 {
3499 usymtab_quietExitScope (g_currentloc);
3500 }
3501
3502 /*
3503 ** Clear the file-specific modifies information.
3504 */
3505
3506 sRefSetList_elements (gc.modrecs, mods)
3507 {
3508 sRefSet_clearStatics (mods);
28bf4b0b 3509 } end_sRefSetList_elements ;
616915dd 3510
3511 sRefSetList_clear (gc.modrecs);
28bf4b0b 3512
616915dd 3513 context_processMacros ();
3514 cleanupMessages ();
28bf4b0b 3515
616915dd 3516 usymtab_exitFile ();
28bf4b0b 3517
616915dd 3518 gc.inDerivedFile = FALSE;
3519 filelocStack_clear (gc.locstack);
28bf4b0b 3520
616915dd 3521 gc.nacct = typeIdSet_emptySet (); /* empty noaccess */
28bf4b0b 3522
616915dd 3523 gc.cont.glob = TRUE;
3524
3525 if (gc.savedFlags)
3526 {
3527 context_restoreFlagSettings ();
3528 gc.savedFlags = FALSE;
3529 }
28bf4b0b 3530
3531 /*
3532 DPRINTF (("After exiting file: "));
3533 usymtab_printAll ();
3534 */
616915dd 3535}
3536
3537void
3538context_exitMacroCache (void)
3539{
3540 if (gc.kind != CX_GLOBAL)
3541 {
28bf4b0b 3542 if (context_inMacro ())
3543 /* this is okay, file could end without newline in macro */
616915dd 3544 {
28bf4b0b 3545 DPRINTF (("Still in macro: %s",
3546 context_unparse ()));
616915dd 3547 context_exitFunction ();
3548 }
3549 else
3550 {
3551 llcontbug (message ("context_exitMacroCache: outside global scope: %q",
3552 context_unparse ()));
3553 gc.kind = CX_GLOBAL;
3554 }
3555 }
3556
3557 /*
3558 ** no longer valid here
3559 ** if (gc.insuppressregion)
3560 ** {
3561 ** gc.insuppressregion = FALSE;
3562 ** llerror ("File ended in ignore errors region, possible missing @");
3563 ** }
3564 */
3565
3566 gc.cont.glob = TRUE;
3567}
3568
3569void
3570context_saveLocation (void)
3571{
3572 /* was llassert (fileloc_isUndefined (gc.saveloc)) */
6970c11b 3573 fileloc_free (gc.saveloc);
616915dd 3574 gc.saveloc = fileloc_copy (g_currentloc);
6970c11b 3575}
616915dd 3576
3577fileloc
3578context_getSaveLocation (void)
3579{
3580 fileloc fl = gc.saveloc;
6970c11b 3581 gc.saveloc = fileloc_undefined;
616915dd 3582 return fl;
3583}
3584
3585/*@observer@*/ cstring
3586context_inFunctionName (void)
3587{
3588 if (gc.kind == CX_FUNCTION
3589 || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO
3590 || gc.kind == CX_MACROCONST
3591 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND)
3592 {
3593 return (uentry_rawName (gc.cont.fcn));
3594 }
3595 else
3596 {
3597 llcontbuglit ("context_inFunctionName: not in function");
3598 return (cstring_undefined);
3599 }
3600}
3601
3602void
3603context_userSetFlag (flagcode f, bool b)
3604{
28bf4b0b 3605 DPRINTF (("set flag: %s", flagcode_unparse (f)));
616915dd 3606
3607 if (f == FLG_NEVERINCLUDE && b)
3608 {
3609 if (gc.flags[FLG_EXPORTHEADER])
3610 {
abb1cb43 3611 llerror_flagWarning (cstring_makeLiteral
3612 ("setting +neverinclude after +exportheader. "
3613 "Turning off exportheader, since headers are not checked "
3614 "when +neverinclude is used."));
616915dd 3615
3616 gc.flags[FLG_EXPORTHEADER] = FALSE;
3617 }
3618 }
3619 else
3620 {
3621 if (f == FLG_EXPORTHEADER && b)
3622 {
3623 if (gc.flags[FLG_NEVERINCLUDE])
3624 {
abb1cb43 3625 llerror_flagWarning (cstring_makeLiteral
3626 ("setting +exportheader after +neverinclude. "
3627 "Not setting exportheader, since headers are not checked "
3628 "when +neverinclude is used."));
616915dd 3629 gc.flags[FLG_EXPORTHEADER] = FALSE;
3630 return;
3631 }
3632 }
3633 }
3634
3635 if (context_getFlag (FLG_WARNFLAGS) && f != FLG_NOF && f != FLG_OPTF)
3636 {
3637 bool lastsetting = context_getFlag (f);
3638
3639 if (bool_equal (lastsetting, b)
3640 && !flagcode_isSpecialFlag (f)
3641 && !flagcode_isIdemFlag (f)
3642 && !flagcode_hasArgument (f))
3643 {
abb1cb43 3644 llerror_flagWarning (message ("setting %s%s redundant with current value",
3645 cstring_makeLiteralTemp (b ? "+" : "-"),
3646 flagcode_unparse (f)));
28bf4b0b 3647 }
3648 }
3649
3650 if (flagcode_isWarnUseFlag (f) && b)
3651 {
3652 if (!context_getFlag (FLG_WARNUSE))
3653 {
abb1cb43 3654 llerror_flagWarning (message ("flag +%s is canceled by -warnuse",
3655 flagcode_unparse (f)));
28bf4b0b 3656
616915dd 3657 }
3658 }
3659
28bf4b0b 3660
616915dd 3661 if (flagcode_isLibraryFlag (f))
3662 {
3663 if (gc.library != FLG_ANSILIB
3664 && gc.library != f)
3665 {
abb1cb43 3666 llerror_flagWarning (message ("selecting library %s after library %s was "
3667 "selected (only one library may be used)",
3668 flagcode_unparse (f),
3669 flagcode_unparse (gc.library)));
616915dd 3670 }
3671
3672 if (f == FLG_UNIXLIB)
3673 {
3674 if (context_getFlag (FLG_WARNUNIXLIB))
3675 {
abb1cb43 3676 llerror_flagWarning (cstring_makeLiteral
3677 ("selecting unix library. Unix library is "
3678 "ad hoc addition to POSIX library. Recommend "
3679 "use +posixlib to select POSIX library instead. "
3680 "Use -warnunixlib to suppress this message."));
616915dd 3681 }
3682 }
3683
3684 gc.library = f;
3685 }
abb1cb43 3686
3687 if (flagcode_isNameChecksFlag (f) && b && !context_maybeSet (FLG_NAMECHECKS))
3688 {
3689 llerror_flagWarning (message
3690 ("setting +%s will not produce warnings with -namechecks. Must set +namechecks also.",
3691 flagcode_unparse (f)));
3692 }
3693
616915dd 3694 gc.setGlobally[f] = TRUE;
3695 context_setFlag (f, b);
3696}
3697
3698void
3699context_fileSetFlag (flagcode f, ynm set)
3700{
3701 if (!gc.savedFlags)
3702 {
3703 context_saveFlagSettings ();
3704 }
3705
3706 if (ynm_isOff (set))
3707 {
3708 context_setFlagAux (f, FALSE, TRUE, FALSE);
3709 }
3710 else if (ynm_isOn (set))
3711 {
3712 context_setFlagAux (f, TRUE, TRUE, FALSE);
3713 gc.setLocally[f] = TRUE;
3714 }
3715 else
3716 {
3717 context_restoreFlag (f);
3718 }
3719}
3720
3721static void
3722context_restoreFlag (flagcode f)
3723{
3724
3725 if (!gc.savedFlags)
3726 {
3727 voptgenerror
3728 (FLG_SYNTAX,
3729 message ("Attempt to restore flag %s when no file scope flags "
3730 "have been set.",
3731 flagcode_unparse (f)),
3732 g_currentloc);
3733 }
3734 else
3735 {
3736 context_addFlagMarker (f, MAYBE);
3737 context_setFlagAux (f, gc.saveflags[f], FALSE, TRUE);
3738 }
3739
3740 }
3741
28bf4b0b 3742static void
616915dd 3743context_setFlag (flagcode f, bool b)
3744{
3745 context_setFlagAux (f, b, FALSE, FALSE);
3746}
3747
3748void
3749context_setFlagTemp (flagcode f, bool b)
3750{
3751 DPRINTF (("Set flag temp: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3752 gc.flags[f] = b;
3753}
3754
3755/*@notfunction@*/
3756# define DOSET(ff,b) \
3757 do { if (inFile) { gc.setLocally[ff] = TRUE; \
3758 context_addFlagMarker (ff, ynm_fromBool (b)); } \
28bf4b0b 3759 DPRINTF (("set flag: %s / %s", flagcode_unparse (ff), bool_unparse (b))); \
616915dd 3760 gc.flags[ff] = b; } while (FALSE)
3761
3762static void
3e3ec469 3763context_setFlagAux (flagcode f, bool b, bool inFile,
3764 /*@unused@*/ bool isRestore)
616915dd 3765{
3e3ec469 3766 DPRINTF (("Set flag: %s / %s", flagcode_unparse (f), bool_unparse (b)));
616915dd 3767
3768 if (f == FLG_USESTDERR)
3769 {
3770 if (b) {
3771 g_msgstream = stderr;
3772 } else {
3773 g_msgstream = stdout;
3774 }
3775 }
3776
28bf4b0b 3777 /*
3778 ** Removed test for special flags.
3779 */
616915dd 3780
28bf4b0b 3781 if (flagcode_isIdemFlag (f))
3782 {
3783 DOSET (f, TRUE);
3784 }
3785 else
3786 {
3787 DOSET (f, b);
3788 }
616915dd 3789
28bf4b0b 3790 if (f >= FLG_ITS4MOSTRISKY && f <= FLG_ITS4LOWRISK)
3791 {
3792 if (b) /* Turing higher level on, turns on all lower levels */
3793 {
3794 switch (f)
616915dd 3795 {
28bf4b0b 3796 case FLG_ITS4MOSTRISKY:
3797 DOSET (FLG_ITS4VERYRISKY, b);
3798 /*@fallthrough@*/
3799 case FLG_ITS4VERYRISKY:
3800 DOSET (FLG_ITS4RISKY, b);
3801 /*@fallthrough@*/
3802 case FLG_ITS4RISKY:
3803 DOSET (FLG_ITS4MODERATERISK, b);
3804 /*@fallthrough@*/
3805 case FLG_ITS4MODERATERISK:
3806 DOSET (FLG_ITS4LOWRISK, b);
3807 /*@fallthrough@*/
3808 case FLG_ITS4LOWRISK:
3809 break;
3810 BADDEFAULT;
616915dd 3811 }
28bf4b0b 3812 }
3813 else /* Turning level off, turns off all higher levels */
3814 {
3815 switch (f)
616915dd 3816 {
28bf4b0b 3817 case FLG_ITS4LOWRISK:
3818 DOSET (FLG_ITS4MODERATERISK, b);
3819 /*@fallthrough@*/
3820 case FLG_ITS4MODERATERISK:
3821 DOSET (FLG_ITS4RISKY, b);
3822 /*@fallthrough@*/
3823 case FLG_ITS4RISKY:
3824 DOSET (FLG_ITS4VERYRISKY, b);
3825 /*@fallthrough@*/
3826 case FLG_ITS4VERYRISKY:
3827 DOSET (FLG_ITS4MOSTRISKY, b);
3828 /*@fallthrough@*/
3829 case FLG_ITS4MOSTRISKY:
3830 break;
3831 BADDEFAULT;
616915dd 3832 }
616915dd 3833 }
3834 }
28bf4b0b 3835
3836 switch (f)
3837 {
3838 case FLG_ALLEMPTY:
3839 DOSET (FLG_ALLEMPTY, b);
3840 DOSET (FLG_IFEMPTY, b);
3841 DOSET (FLG_WHILEEMPTY, b);
3842 DOSET (FLG_FOREMPTY, b);
3843 break;
3844 case FLG_PREDBOOL:
3845 DOSET (FLG_PREDBOOL, b);
3846 DOSET (FLG_PREDBOOLINT, b);
3847 DOSET (FLG_PREDBOOLPTR, b);
3848 DOSET (FLG_PREDBOOLOTHERS, b);
3849 break;
3850 case FLG_GLOBALIAS:
3851 DOSET (FLG_CHECKSTRICTGLOBALIAS, b);
3852 DOSET (FLG_CHECKEDGLOBALIAS, b);
3853 DOSET (FLG_CHECKMODGLOBALIAS, b);
3854 DOSET (FLG_UNCHECKEDGLOBALIAS, b);
3855 break;
3856 case FLG_ALLBLOCK:
3857 DOSET (FLG_ALLBLOCK, b);
3858 DOSET (FLG_IFBLOCK, b);
3859 DOSET (FLG_WHILEBLOCK, b);
3860 DOSET (FLG_FORBLOCK, b);
3861 break;
3862 case FLG_GRAMMAR:
3863 if (b)
616915dd 3864 {
28bf4b0b 3865 yydebug = 1;
3866 mtdebug = 1;
616915dd 3867 }
3868 else
3869 {
28bf4b0b 3870 yydebug = 0;
3871 mtdebug = 0;
3872 }
3873
3874 DOSET (FLG_GRAMMAR, b);
3875 break;
3876 case FLG_CODEIMPONLY:
3877 DOSET (FLG_CODEIMPONLY, b);
3878 DOSET (FLG_GLOBIMPONLY, b);
3879 DOSET (FLG_RETIMPONLY, b);
3880 DOSET (FLG_STRUCTIMPONLY, b);
3881 break;
3882 case FLG_SPECALLIMPONLY:
3883 DOSET (FLG_SPECALLIMPONLY, b);
3884 DOSET (FLG_SPECGLOBIMPONLY, b);
3885 DOSET (FLG_SPECRETIMPONLY, b);
3886 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3887 break;
3888 case FLG_ALLIMPONLY:
3889 DOSET (FLG_ALLIMPONLY, b);
3890 DOSET (FLG_GLOBIMPONLY, b);
3891 DOSET (FLG_RETIMPONLY, b);
3892 DOSET (FLG_STRUCTIMPONLY, b);
3893 DOSET (FLG_SPECGLOBIMPONLY, b);
3894 DOSET (FLG_SPECRETIMPONLY, b);
3895 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3896 break;
27c9e640 3897 case FLG_ANSI89LIMITS:
3898 DOSET (FLG_ANSI89LIMITS, b);
28bf4b0b 3899 DOSET (FLG_CONTROLNESTDEPTH, b);
3900 DOSET (FLG_STRINGLITERALLEN, b);
3901 DOSET (FLG_INCLUDENEST, b);
3902 DOSET (FLG_NUMSTRUCTFIELDS, b);
3903 DOSET (FLG_NUMENUMMEMBERS, b);
3904
3905 if (b)
3906 {
27c9e640 3907 context_setValue (FLG_CONTROLNESTDEPTH, ANSI89_CONTROLNESTDEPTH);
3908 context_setValue (FLG_STRINGLITERALLEN, ANSI89_STRINGLITERALLEN);
3909 context_setValue (FLG_INCLUDENEST, ANSI89_INCLUDENEST);
3910 context_setValue (FLG_NUMSTRUCTFIELDS, ANSI89_NUMSTRUCTFIELDS);
3911 context_setValue (FLG_NUMENUMMEMBERS, ANSI89_NUMENUMMEMBERS);
3912 context_setValue (FLG_EXTERNALNAMELEN, ANSI89_EXTERNALNAMELEN);
3913 context_setValue (FLG_INTERNALNAMELEN, ANSI89_INTERNALNAMELEN);
3914 }
3915 break;
3916 case FLG_ISO99LIMITS:
3917 DOSET (FLG_ISO99LIMITS, b);
3918 DOSET (FLG_CONTROLNESTDEPTH, b);
3919 DOSET (FLG_STRINGLITERALLEN, b);
3920 DOSET (FLG_INCLUDENEST, b);
3921 DOSET (FLG_NUMSTRUCTFIELDS, b);
3922 DOSET (FLG_NUMENUMMEMBERS, b);
3923
3924 if (b)
3925 {
3926 context_setValue (FLG_CONTROLNESTDEPTH, ISO99_CONTROLNESTDEPTH);
3927 context_setValue (FLG_STRINGLITERALLEN, ISO99_STRINGLITERALLEN);
3928 context_setValue (FLG_INCLUDENEST, ISO99_INCLUDENEST);
3929 context_setValue (FLG_NUMSTRUCTFIELDS, ISO99_NUMSTRUCTFIELDS);
3930 context_setValue (FLG_NUMENUMMEMBERS, ISO99_NUMENUMMEMBERS);
3931 context_setValue (FLG_EXTERNALNAMELEN, ISO99_EXTERNALNAMELEN);
3932 context_setValue (FLG_INTERNALNAMELEN, ISO99_INTERNALNAMELEN);
28bf4b0b 3933 }
3934 break;
3935 case FLG_EXTERNALNAMELEN:
3936 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3937 DOSET (FLG_EXTERNALNAMELEN, TRUE);
3938 break;
3939 case FLG_INTERNALNAMELEN:
3940 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3941 DOSET (FLG_INTERNALNAMELEN, TRUE);
3942 break;
3943 case FLG_EXTERNALNAMECASEINSENSITIVE:
3944 DOSET (FLG_EXTERNALNAMECASEINSENSITIVE, b);
3945
3946 if (b && !gc.flags[FLG_DISTINCTEXTERNALNAMES])
3947 {
3948 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3949 context_setValue (FLG_EXTERNALNAMELEN, 0);
3950 }
3951 break;
3952 case FLG_INTERNALNAMECASEINSENSITIVE:
3953 DOSET (FLG_INTERNALNAMECASEINSENSITIVE, b);
3954
3955 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3956 {
3957 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3958 context_setValue (FLG_INTERNALNAMELEN, 0);
3959 }
3960 break;
3961 case FLG_INTERNALNAMELOOKALIKE:
3962 DOSET (FLG_INTERNALNAMELOOKALIKE, b);
3963
3964 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3965 {
3966 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3967 context_setValue (FLG_INTERNALNAMELEN, 0);
616915dd 3968 }
28bf4b0b 3969 break;
3970 case FLG_MODUNSPEC:
3971 DOSET (FLG_MODNOMODS, b);
3972 DOSET (FLG_MODGLOBSUNSPEC, b);
3973 DOSET (FLG_MODSTRICTGLOBSUNSPEC, b);
3974 break;
3975 case FLG_EXPORTANY:
3976 DOSET (FLG_EXPORTVAR, b);
3977 DOSET (FLG_EXPORTFCN, b);
3978 DOSET (FLG_EXPORTTYPE, b);
3979 DOSET (FLG_EXPORTMACRO, b);
3980 DOSET (FLG_EXPORTCONST, b);
3981 gc.anyExports = TRUE;
3982 break;
3983 case FLG_REPEXPOSE:
3984 DOSET (FLG_RETEXPOSE, b);
3985 DOSET (FLG_ASSIGNEXPOSE, b);
3986 DOSET (FLG_CASTEXPOSE, b);
3987 break;
3988 case FLG_RETVAL:
3989 DOSET (FLG_RETVALBOOL, b);
3990 DOSET (FLG_RETVALINT, b);
3991 DOSET (FLG_RETVALOTHER, b);
3992 break;
3993 case FLG_PARTIAL:
3994 if (b)
3995 {
3996 DOSET (FLG_EXPORTLOCAL, FALSE);
3997 DOSET (FLG_DECLUNDEF, FALSE);
3998 DOSET (FLG_SPECUNDEF, FALSE);
3999 DOSET (FLG_TOPUNUSED, FALSE);
4000 }
4001 break;
4002 case FLG_DEEPBREAK:
4003 DOSET (FLG_LOOPLOOPBREAK, b);
4004 DOSET (FLG_LOOPSWITCHBREAK, b);
4005 DOSET (FLG_SWITCHLOOPBREAK, b);
4006 DOSET (FLG_SWITCHSWITCHBREAK, b);
4007 DOSET (FLG_LOOPLOOPCONTINUE, b);
4008 DOSET (FLG_DEEPBREAK, b);
4009 break;
3e3ec469 4010 case FLG_LOOPEXEC:
4011 DOSET (FLG_FORLOOPEXEC, b);
4012 DOSET (FLG_WHILELOOPEXEC, b);
4013 DOSET (FLG_ITERLOOPEXEC, b);
4014 break;
28bf4b0b 4015 case FLG_ACCESSALL:
4016 DOSET (FLG_ACCESSMODULE, b);
4017 DOSET (FLG_ACCESSFILE, b);
4018 DOSET (FLG_ACCESSCZECH, b);
4019 break;
4020 case FLG_ALLMACROS:
4021 DOSET (FLG_ALLMACROS, b);
4022 DOSET (FLG_FCNMACROS, b);
4023 DOSET (FLG_CONSTMACROS, b);
4024 break;
bb7c2085 4025 case FLG_BOUNDS:
4026 DOSET (FLG_BOUNDSREAD, b);
4027 DOSET (FLG_BOUNDSWRITE, b);
4028 break;
28bf4b0b 4029 case FLG_CZECH:
4030 if (b) { DOSET (FLG_ACCESSCZECH, b); }
4031 DOSET (FLG_CZECHFUNCTIONS, b);
4032 DOSET (FLG_CZECHVARS, b);
4033 DOSET (FLG_CZECHCONSTANTS, b);
4034 DOSET (FLG_CZECHTYPES, b);
4035 break;
4036 case FLG_SLOVAK:
4037 if (b) { DOSET (FLG_ACCESSSLOVAK, b); }
4038 DOSET (FLG_SLOVAKFUNCTIONS, b);
4039 DOSET (FLG_SLOVAKVARS, b);
4040 DOSET (FLG_SLOVAKCONSTANTS, b);
4041 DOSET (FLG_SLOVAKTYPES, b);
4042 break;
4043 case FLG_CZECHOSLOVAK:
4044 if (b) { DOSET (FLG_ACCESSCZECHOSLOVAK, b); }
4045 DOSET (FLG_CZECHOSLOVAKFUNCTIONS, b);
4046 DOSET (FLG_CZECHOSLOVAKVARS, b);
4047 DOSET (FLG_CZECHOSLOVAKCONSTANTS, b);
4048 DOSET (FLG_CZECHOSLOVAKTYPES, b);
4049 break;
4050 case FLG_NULL:
4051 DOSET (FLG_NULLSTATE, b);
4052 DOSET (FLG_NULLDEREF, b);
4053 DOSET (FLG_NULLASSIGN, b);
4054 DOSET (FLG_NULLPASS, b);
4055 DOSET (FLG_NULLRET, b);
4056 break;
2e127cb8 4057 case FLG_MUSTFREE:
4058 DOSET (FLG_MUSTFREEONLY, b);
4059 DOSET (FLG_MUSTFREEFRESH, b);
4060 break;
28bf4b0b 4061 case FLG_MEMCHECKS:
4062 DOSET (FLG_NULLSTATE, b);
4063 DOSET (FLG_NULLDEREF, b);
4064 DOSET (FLG_NULLASSIGN, b);
4065 DOSET (FLG_NULLPASS, b);
4066 DOSET (FLG_NULLRET, b);
4067 DOSET (FLG_COMPDEF, b);
4068 DOSET (FLG_COMPMEMPASS, b);
4069 DOSET (FLG_UNIONDEF, b);
4070 DOSET (FLG_MEMTRANS, b);
4071 DOSET (FLG_USERELEASED, b);
4072 DOSET (FLG_ALIASUNIQUE, b);
4073 DOSET (FLG_MAYALIASUNIQUE, b);
2e127cb8 4074 DOSET (FLG_MUSTFREEONLY, b);
4075 DOSET (FLG_MUSTFREEFRESH, b);
28bf4b0b 4076 DOSET (FLG_MUSTDEFINE, b);
4077 DOSET (FLG_GLOBSTATE, b);
4078 DOSET (FLG_COMPDESTROY, b);
4079 DOSET (FLG_MUSTNOTALIAS, b);
4080 DOSET (FLG_MEMIMPLICIT, b);
4081 DOSET (FLG_BRANCHSTATE, b);
4082 /*@fallthrough@*/ /* also sets memtrans flags */
4083 case FLG_MEMTRANS:
4084 DOSET (FLG_MEMTRANS, b);
4085 DOSET (FLG_EXPOSETRANS, b);
4086 DOSET (FLG_OBSERVERTRANS, b);
4087 DOSET (FLG_DEPENDENTTRANS, b);
4088 DOSET (FLG_NEWREFTRANS, b);
4089 DOSET (FLG_ONLYTRANS, b);
4090 DOSET (FLG_OWNEDTRANS, b);
4091 DOSET (FLG_FRESHTRANS, b);
4092 DOSET (FLG_SHAREDTRANS, b);
4093 DOSET (FLG_TEMPTRANS, b);
4094 DOSET (FLG_KEPTTRANS, b);
4095 DOSET (FLG_REFCOUNTTRANS, b);
4096 DOSET (FLG_STATICTRANS, b);
4097 DOSET (FLG_UNKNOWNTRANS, b);
4098 DOSET (FLG_KEEPTRANS, b);
4099 DOSET (FLG_IMMEDIATETRANS, b);
4100 break;
4101
4102 default:
4103 break;
4104 }
4105
4106 if (b && !gc.anyExports
4107 && (f == FLG_EXPORTVAR || f == FLG_EXPORTFCN
4108 || f == FLG_EXPORTTYPE || f == FLG_EXPORTMACRO
4109 || f == FLG_EXPORTCONST
4110 || f == FLG_EXPORTANY))
4111 {
4112 gc.anyExports = TRUE;
616915dd 4113 }
4114}
4115
4116bool
4117context_maybeSet (flagcode d)
4118{
4119 return (gc.flags[d] || gc.setLocally[d]);
4120}
4121
4122bool
4123context_getFlag (flagcode d)
4124{
4125 return (gc.flags[d]);
4126}
4127
28bf4b0b 4128bool
4129context_flagOn (flagcode f, fileloc loc)
4130{
4131 return (!context_suppressFlagMsg (f, loc));
4132}
4133
616915dd 4134static void context_saveFlagSettings (void)
4135{
4136 gc.savedFlags = TRUE;
4137 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4138 memcpy (gc.saveflags, gc.flags, sizeof (gc.flags));
4139}
4140
4141static void context_restoreFlagSettings (void)
4142{
4143 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4144 memcpy (gc.flags, gc.saveflags, sizeof (gc.flags));
4145 gc.savedFlags = FALSE;
4146}
4147
4148void context_setFilename (fileId fid, int lineno)
4149 /*@globals fileloc g_currentloc;@*/
4150 /*@modifies g_currentloc@*/
4151{
4152 if (fileId_baseEqual (currentFile (), fid))
4153 {
4154 setLine (lineno);
4155 return;
4156 }
4157 else
4158 {
4159 fileloc_setColumn (g_currentloc, 0);
4160
4161 if (fileloc_isSpecialFile (g_currentloc))
4162 {
4163 gc.inDerivedFile = TRUE;
4164 }
4165
4166 if (filelocStack_popPushFile (gc.locstack, g_currentloc))
4167 {
4168 int maxdepth = context_getValue (FLG_INCLUDENEST);
4169
4170 if (filelocStack_size (gc.locstack) > maxdepth)
4171 {
4172 int depth = filelocStack_includeDepth (gc.locstack);
4173
4174 if (depth > maxdepth)
4175 {
4176 if (optgenerror
4177 (FLG_INCLUDENEST,
4178 message ("Maximum include nesting depth "
4179 "(%d, current depth %d) exceeded",
4180 maxdepth,
4181 depth),
4182 filelocStack_nextTop (gc.locstack)))
4183 {
4184 filelocStack_printIncludes (gc.locstack);
4185 }
4186 }
4187 }
4188 }
4189
4190 g_currentloc = fileloc_create (fid, lineno, 1);
4191 gc.inheader = fileId_isHeader (currentFile ());
4192
4193 context_enterFileAux ();
4194 }
4195}
4196
4197void context_enterIterDef (/*@observer@*/ uentry le)
4198{
b7e84605 4199 context_enterMacro (le);
616915dd 4200 gc.acct = typeIdSet_subtract (gc.facct, gc.nacct);
4201 gc.kind = CX_ITERDEF;
4202}
4203
4204void context_enterIterEnd (/*@observer@*/ uentry le)
4205{
b7e84605 4206 context_enterMacro (le);
616915dd 4207 gc.kind = CX_ITEREND;
4208}
4209
4210void
4211context_destroyMod (void)
4212 /*@globals killed gc@*/
4213{
4214 setCodePoint ();
4215 ctype_destroyMod ();
4216 setCodePoint ();
4217 usymtab_free ();
4218 setCodePoint ();
4219 fileTable_free (gc.ftab);
4220 filelocStack_free (gc.locstack);
4221 setCodePoint ();
4222 gc.ftab = fileTable_undefined;
4223
4224 macrocache_free (gc.mc);
4225 sfree (gc.moduleaccess);
4226 setCodePoint ();
4227
4228 fileloc_free (gc.saveloc); gc.saveloc = fileloc_undefined;
4229 fileloc_free (gc.pushloc); gc.pushloc = fileloc_undefined;
4230
4231 setCodePoint ();
4232 sRefSetList_free (gc.modrecs);
4233 setCodePoint ();
4234 flagMarkerList_free (gc.markers);
4235 setCodePoint ();
4236 messageLog_free (gc.msgLog);
4237 setCodePoint ();
4238 clauseStack_free (gc.clauses);
4239 setCodePoint ();
4240
4241 cstring_free (gc.msgAnnote);
4242 globSet_free (gc.globs_used);
28bf4b0b 4243 metaStateTable_free (gc.stateTable);
4244 annotationTable_free (gc.annotTable);
4245}
616915dd 4246
4247/*
4248** Flag shortcuts.
4249*/
4250
4251bool context_msgBoolInt (void)
4252{
4253 return gc.flags [FLG_BOOLINT];
4254}
4255
4256bool context_msgCharInt (void)
4257{
4258 return gc.flags [FLG_CHARINT];
4259}
4260
4261bool context_msgEnumInt (void)
4262{
4263 return gc.flags [FLG_ENUMINT];
4264}
4265
4266bool context_msgPointerArith (void)
4267{
4268 return gc.flags [FLG_POINTERARITH];
4269}
4270
4271bool context_msgStrictOps (void)
4272{
4273 return gc.flags [FLG_STRICTOPS];
4274}
4275
4276# ifndef NOLCL
4277bool context_msgLh (void)
4278{
4279 return gc.flags [FLG_DOLH];
4280}
4281# endif
4282
4283void context_pushLoc (void)
4284{
4285 fileloc_free (gc.pushloc);
4286 gc.pushloc = gc.saveloc;
4287 gc.saveloc = fileloc_undefined;
4288}
4289
4290void context_popLoc (void)
4291{
4292 gc.saveloc = fileloc_update (gc.saveloc, gc.pushloc);
4293}
4294
4295bool context_inGlobalScope (void)
4296{
4297 return (usymtab_inFileScope() || usymtab_inGlobalScope ());
4298}
4299
4300bool context_inInnerScope (void)
4301{
4302 return (gc.kind == CX_INNER);
4303}
4304
4305void context_setProtectVars (void)
4306{
4307 gc.protectVars = TRUE;
4308}
4309
4310bool context_anyErrors (void)
4311{
4312 return (gc.numerrors > 0);
4313}
4314
4315void context_hasError (void)
4316{
4317 gc.numerrors++;
ccf0a4a8 4318 DPRINTF (("num errors: %d", gc.numerrors));
616915dd 4319}
4320
4321int context_numErrors (void)
4322{
4323 return gc.numerrors;
4324}
4325
4326bool context_neednl (void)
4327{
4328 return gc.neednl;
4329}
4330
4331void context_setNeednl (void)
4332{
4333 gc.neednl = TRUE;
4334}
4335
4336int context_getExpect (void)
4337{
4338 return (context_getValue (FLG_EXPECT));
4339}
4340
4341# ifndef NOLCL
4342int context_getLCLExpect (void)
4343{
4344 return (context_getValue (FLG_LCLEXPECT));
4345}
4346# endif
4347
4348int context_getLimit (void)
4349{
4350 return (context_getValue (FLG_LIMIT));
4351}
4352
4353bool context_unlimitedMessages (void)
4354{
4355 return (context_getLimit () < 0);
4356}
4357
4358void context_releaseVars (void)
4359{
4360 llassert (gc.protectVars);
4361 gc.protectVars = FALSE;
4362}
4363
4364void context_sizeofReleaseVars (void)
4365{
4366 /* If there is a nested sizeof, this might not hold:
4367 llassert (gc.protectVars);
4368 */
4369
4370 gc.protectVars = FALSE;
4371}
4372
4373bool context_inProtectVars (void)
4374{
4375 return (gc.protectVars);
4376}
4377
4378void context_hideShowscan (void)
4379{
4380 gc.flags[FLG_SHOWSCAN] = FALSE;
4381}
4382
4383void context_unhideShowscan (void)
4384{
4385 gc.flags[FLG_SHOWSCAN] = TRUE;
4386}
4387
4388bool context_inHeader (void)
4389{
4390 return (gc.inheader);
4391}
4392
4393fileTable context_fileTable (void)
4394{
4395 return gc.ftab;
4396}
4397
4398cstring context_tmpdir (void)
4399{
4400 return (context_getString (FLG_TMPDIR));
4401}
4402
4403messageLog context_messageLog (void)
4404{
4405 return gc.msgLog;
4406}
4407
4408bool context_inMacroFunction (void)
4409{
4410 return (gc.kind == CX_MACROFCN);
4411}
4412
4413bool context_inMacroConstant (void)
4414{
4415 return (gc.kind == CX_MACROCONST);
4416}
4417
b7e84605 4418bool context_inUnknownMacro (void)
616915dd 4419{
4420 return (gc.kind == CX_UNKNOWNMACRO);
4421}
4422
4423void context_setShownFunction (void)
4424{
4425 gc.showfunction = FALSE;
4426}
4427
4428bool context_doDump (void)
4429{
4430 return cstring_isNonEmpty (context_getString (FLG_DUMP));
4431}
4432
4433bool context_doMerge (void)
4434{
4435 return cstring_isNonEmpty (context_getString (FLG_MERGE));
4436}
4437
4438cstring context_getDump (void)
4439{
4440 return context_getString (FLG_DUMP);
4441}
4442
4443cstring context_getMerge (void)
4444{
4445 return context_getString (FLG_MERGE);
4446}
4447
4448# ifndef NOLCL
4449bool context_inLCLLib (void)
4450{
4451 return (gc.kind == CX_LCLLIB);
4452}
4453
4454bool context_inImport (void)
4455{
4456 return (gc.inimport);
4457}
4458
4459void context_enterImport (void)
4460{
4461 gc.inimport = TRUE;
4462}
4463
4464void context_leaveImport (void)
4465{
4466 gc.inimport = FALSE;
4467}
4468# endif
4469
4470bool context_inMacro (void)
4471{
4472 return (gc.kind == CX_MACROFCN || gc.kind == CX_MACROCONST
4473 || gc.kind == CX_UNKNOWNMACRO
4474 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND);
4475}
4476
4477bool context_inIterDef (void)
4478{
4479 return (gc.kind == CX_ITERDEF);
4480}
4481
4482bool context_inIterEnd (void)
4483{
4484 return (gc.kind == CX_ITEREND);
4485}
4486
4487int context_getLinesProcessed (void)
4488{
4489 return (gc.linesprocessed);
4490}
4491
4492int context_getSpecLinesProcessed (void)
4493{
4494 return (gc.speclinesprocessed);
4495}
4496
4497# ifndef NOLCL
4498void context_processedSpecLine (void)
4499{
4500 gc.speclinesprocessed++;
4501}
4502
4503void context_resetSpecLines (void)
4504{
4505 gc.speclinesprocessed = 0;
4506}
4507# endif
4508
4509bool context_inGlobalContext (void)
4510{
4511 return (gc.kind == CX_GLOBAL);
4512}
4513
b7e84605 4514static void context_quietExitScopes (void)
4515{
4516 /*
4517 ** Try to restore the global scope (after an error).
4518 */
4519
4520 while (!usymtab_inFileScope ())
4521 {
4522 usymtab_quietExitScope (g_currentloc);
4523 }
4524
4525 gc.cont.glob = TRUE;
4526 gc.kind = CX_GLOBAL;
4527}
4528
4529void context_checkGlobalScope (void)
4530{
4531 if (gc.kind != CX_GLOBAL)
4532 {
a469ccf0 4533 if (context_inMacro ())
4534 {
4535 ; /* evans 2001-10-14: Okay to be in a macro here! */
4536 }
4537 else
4538 {
4539 llcontbug (message ("Not in global scope as expected: %q", context_unparse ()));
4540 context_quietExitScopes ();
4541 }
b7e84605 4542 }
4543}
4544
616915dd 4545void context_setFileId (fileId s)
4546{
4547 g_currentloc = fileloc_updateFileId (g_currentloc, s);
4548}
4549
4550bool context_setBoolName (void)
4551{
4552 return (!cstring_equalLit (context_getString (FLG_BOOLTYPE),
4553 DEFAULT_BOOLTYPE));
4554}
4555
4556cstring context_printBoolName (void)
4557{
4558 if (context_setBoolName ())
4559 {
4560 return context_getBoolName ();
4561 }
4562 else
4563 {
4564 return cstring_makeLiteralTemp ("boolean");
4565 }
4566}
4567
4568cstring context_getBoolName (void)
4569{
4570 return (context_getString (FLG_BOOLTYPE));
4571}
4572
4573cstring context_getFalseName (void)
4574{
4575 return (context_getString (FLG_BOOLFALSE));
4576}
4577
4578cstring context_getTrueName (void)
4579{
4580 return (context_getString (FLG_BOOLTRUE));
4581}
4582
4583cstring context_getLarchPath (void)
4584{
4585 return (context_getString (FLG_LARCHPATH));
4586}
4587
4588cstring context_getLCLImportDir (void)
4589{
4590 return (context_getString (FLG_LCLIMPORTDIR));
4591}
4592
4593static void context_setJustPopped (void)
4594{
4595 gc.justpopped = TRUE;
4596}
4597
4598void context_clearJustPopped (void)
4599{
4600 gc.justpopped = FALSE;
4601}
4602
4603bool context_justPopped (void)
4604{
4605 return (gc.justpopped);
4606}
4607
4608void context_setMacroMissingParams (void)
4609{
4610 gc.macroMissingParams = TRUE;
4611}
4612
4613void context_resetMacroMissingParams (void)
4614{
4615 gc.macroMissingParams = FALSE;
4616}
4617
4618bool context_isMacroMissingParams (void)
4619{
4620 return (gc.macroMissingParams);
4621}
4622
4623void context_showFilelocStack (void)
4624{
4625 filelocStack_printIncludes (gc.locstack);
4626}
4627
28bf4b0b 4628metaStateTable context_getMetaStateTable (void)
4629{
4630 return gc.stateTable;
4631}
4632
4633metaStateInfo context_lookupMetaStateInfo (cstring key)
4634{
4635 return metaStateTable_lookup (gc.stateTable, key);
4636}
4637
4638/*@null@*/ annotationInfo context_lookupAnnotation (cstring annot)
4639{
4640 annotationInfo ainfo;
4641
4642 ainfo = annotationTable_lookup (gc.annotTable, annot);
4643
4644 return ainfo;
4645}
4646
4647void context_addAnnotation (annotationInfo ainfo)
4648{
4649 if (annotationTable_contains (gc.annotTable, annotationInfo_getName (ainfo)))
4650 {
4651 voptgenerror
4652 (FLG_SYNTAX,
4653 message ("Duplicate annotation declaration: %s", annotationInfo_getName (ainfo)),
4654 annotationInfo_getLoc (ainfo));
4655
4656 annotationInfo_free (ainfo);
4657 }
4658 else
4659 {
4660 annotationTable_insert (gc.annotTable, ainfo);
4661 }
4662}
4663
4664void context_addMetaState (cstring mname, metaStateInfo msinfo)
4665{
4666 if (metaStateTable_contains (gc.stateTable, mname))
4667 {
4668 voptgenerror
4669 (FLG_SYNTAX,
4670 message ("Duplicate metastate declaration: %s", mname),
4671 metaStateInfo_getLoc (msinfo));
4672 cstring_free (mname);
4673 metaStateInfo_free (msinfo);
4674 }
4675 else
4676 {
990ec868 4677 DPRINTF (("Adding meta state: %s", mname));
28bf4b0b 4678 metaStateTable_insert (gc.stateTable, mname, msinfo);
4679 }
4680}
616915dd 4681
6970c11b 4682valueTable context_createValueTable (sRef s, stateInfo sinfo)
28bf4b0b 4683{
4684 if (metaStateTable_size (gc.stateTable) > 0)
4685 {
4686 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4687 /*@i32 should use smaller value... */
4688 DPRINTF (("Value table for: %s", sRef_unparse (s)));
990ec868 4689
28bf4b0b 4690 metaStateTable_elements (gc.stateTable, msname, msi)
4691 {
4692 mtContextNode context = metaStateInfo_getContext (msi);
616915dd 4693
28bf4b0b 4694 if (mtContextNode_matchesRefStrict (context, s))
4695 {
4696 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4697 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4698
990ec868 4699 valueTable_insert
4700 (res,
4701 cstring_copy (metaStateInfo_getName (msi)),
6970c11b 4702 stateValue_createImplicit (metaStateInfo_getDefaultValue (msi, s),
4703 stateInfo_copy (sinfo)));
28bf4b0b 4704 }
4705 else
4706 {
4707 DPRINTF (("No match: %s", metaStateInfo_unparse (msi)));
4708 }
4709 }
4710 end_metaStateTable_elements ;
4711
6970c11b 4712 stateInfo_free (sinfo);
28bf4b0b 4713 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4714 return res;
4715 }
4716 else
4717 {
6970c11b 4718 stateInfo_free (sinfo);
28bf4b0b 4719 return valueTable_undefined;
4720 }
4721}
616915dd 4722
6970c11b 4723valueTable context_createGlobalMarkerValueTable (stateInfo sinfo)
28bf4b0b 4724{
4725 if (metaStateTable_size (gc.stateTable) > 0)
4726 {
4727 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4728 /*@i32 should use smaller value... */
4729
4730 metaStateTable_elements (gc.stateTable, msname, msi)
4731 {
4732 /*@i23 only add global...*/
4733 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4734 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4735
4736 valueTable_insert (res,
4737 cstring_copy (metaStateInfo_getName (msi)),
4738 stateValue_create (metaStateInfo_getDefaultGlobalValue (msi),
6970c11b 4739 stateInfo_copy (sinfo)));
28bf4b0b 4740 }
4741 end_metaStateTable_elements ;
4742
6970c11b 4743 stateInfo_free (sinfo);
28bf4b0b 4744 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4745 return res;
4746 }
4747 else
4748 {
6970c11b 4749 stateInfo_free (sinfo);
28bf4b0b 4750 return valueTable_undefined;
4751 }
4752}
616915dd 4753
4754
4755
86d93ed3 4756/*drl 12/30/01 these are some ugly functions that were added to facilitate struct annotations */
4757
4758
4759/*drl added */
4760static ctype lastStruct;
4761
4762ctype context_setLastStruct (/*@returned@*/ ctype s) /*@globals lastStruct@*/
4763{
4764 lastStruct = s;
4765 return s;
4766}
4767
4768ctype context_getLastStruct (/*@returned@*/ /*ctype s*/) /*@globals lastStruct@*/
4769{
4770 return lastStruct;
4771}
4772
4773
4774/*@unused@*/ static int sInfoNum = 0;
4775
4776
4777struct getUe {
4778 /*@unused@*/ uentry ue;
4779 /*@unused@*/ sRef s;
4780};
4781
4782struct sInfo {
4783 /*@unused@*/ ctype ct;
4784 /*@unused@*/ constraintList inv;
4785 /*@unused@*/ int ngetUe;
4786 /*@unused@*/ struct getUe * t ;
4787};
4788
4789
4790static struct sInfo globalStructInfo;
4791
4792
4793/*drl 1/6/2001: I didn't think these functions were solid enough to include in the
4794 stable release of splint. I coomented them out so that they won't break anything
4795 but didn't delete them because they will be fixed and included later
4796*/
4797
4798/*
4799void setGlobalStructInfo(ctype ct, constraintList list)
4800{
4801 int i;
4802 uentryList f;
4803
4804 f = ctype_getFields (ct);
4805
4806 if (constraintList_isDefined(list) )
4807 {
4808 globalStructInfo.ct = ct;
4809 globalStructInfo.inv = list;
4810
4811 globalStructInfo.ngetUe = 0;
4812
4813 / *abstraction violation fix it * /
4814 globalStructInfo.t = dmalloc(f->nelements * sizeof(struct getUe) );
4815
4816 globalStructInfo.ngetUe = f->nelements;
4817
4818 i = 0;
4819
4820 uentryList_elements(f, ue)
4821 {
4822 globalStructInfo.t[i].ue = ue;
4823 globalStructInfo.t[i].s = uentry_getSref(ue);
4824 TPRINTF(( message(" setGlobalStructInfo:: adding ue=%s and sRef=%s",
4825 uentry_unparse(ue), sRef_unparse( uentry_getSref(ue) )
4826 )
4827 ));
4828 i++;
4829 }
4830 end_uentryList_elements;
4831 }
4832}
4833
4834*/
4835
4836bool hasInvariants (ctype ct) /*@*/
4837{
4838 if ( ctype_sameName(globalStructInfo.ct, ct) )
4839
4840 return TRUE;
4841
4842 else
4843
4844 return FALSE;
4845
4846}
4847
4848/*drl 1/6/2001: I didn't think these functions were solid enough to include in the
4849 stable release of splint. I coomented them out so that they won't break anything
4850 but didn't delete them because they will be fixed and included later
4851*/
4852
4853/*
4854constraintList getInvariants (ctype ct)
4855{
4856
4857 llassert(hasInvariants(ct) );
4858
4859 return globalStructInfo.inv;
4860}
4861*/
4862
4863/*
4864static int getSref (ctype ct, sRef s)
4865{
4866 int i;
4867
4868 i = 0;
4869
4870 / *
4871 DEBUGGIN INFO
4872
4873 fprintf(stderr, "getSref: ct = %s (%x)\n", ctype_unparse(ct), ct );
4874
4875 fprintf(stderr,"getSref: s = (%s) %X \n", sRef_unparse(s), s);
4876 * /
4877
4878 while (i < globalStructInfo.ngetUe)
4879 {
4880 DPRINTF(( message(" getSref:: comparing ue=%s and sRef=%s",
4881 uentry_unparse(globalStructInfo.t[i].ue),
4882 sRef_unparse(globalStructInfo.t[i].s)
4883 )
4884 ));
4885
4886 / *
4887 fprintf (stderr, " globalStructInfo.t[i].s = %x\n ",
4888 globalStructInfo.t[i].s );
4889 * /
4890
4891 if (sRef_same(globalStructInfo.t[i].s,s) )
4892 return i;
4893
4894 i++;
4895 }
4896 return -1;
4897}
4898
4899
4900sRef fixSref (ctype ct, sRef base, sRef fix)
4901{
4902 int index;
4903 uentry ue;
4904 cstring name;
4905 index = getSref(ct, fix);
4906
4907 if (index < 0)
4908 return fix;
4909
4910 ue = globalStructInfo.t[index].ue;
4911 name = uentry_getName(ue);
4912 fix = sRef_buildField(base, name );
4913 cstring_free(name);
4914 return fix;
4915}
4916
4917*/
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