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Modified the doc/Makefile.am so that the man page is install under make install.
[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**
155af98d 20** For information on splint: info@splint.org
21** To report a bug: splint-bug@splint.org
11db3170 22** For more information: http://www.splint.org
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 =
4dd72714 540 fileLib_withoutExtension (fileTable_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 */
9276a168 917
918 /* commenting ou until some output issues are fixed */
0a417fb3 919 /* gc.flags[FLG_ORCONSTRAINT] = TRUE;*/
9276a168 920
4a689c7f 921 gc.flags[FLG_CONSTRAINTLOCATION] = TRUE;
e55c0c6d 922
923 /*drl 1/18/2002*/
924 gc.flags[FLG_WARNSYSFILES] = TRUE;
925
616915dd 926 /*
927 ** On by default for Win32, but not Unix (to support MS/VC++ error message format).
928 */
929
930# ifdef WIN32
931 gc.flags[FLG_PARENFILEFORMAT] = TRUE;
932# endif
933}
934
935/*
936** C is way-lame, and you can initialize an array to a constant except where
937** it is declared. Hence, a macro is used to set the modeflags.
938*/
939
940/*@notfunction@*/
941# define SETFLAGS() \
942 { int i = 0; while (modeflags[i] != INVALID_FLAG) { \
943 if (!flagcode_isModeFlag (modeflags[i])) \
944 { llbug (message ("not a mode flag: %s", \
945 flagcode_unparse (modeflags[i]))); } \
946 else { context_setFlag (modeflags[i], TRUE); } i++; }}
947
982cc10b 948static void context_setModeAux (cstring p_s, bool p_warn) ;
949
616915dd 950void
951context_setMode (cstring s)
982cc10b 952{
953 context_setModeAux (s, TRUE);
954}
955
956void
957context_setModeNoWarn (cstring s)
958{
959 context_setModeAux (s, FALSE);
960}
961
962void
963context_setModeAux (cstring s, bool warn)
616915dd 964{
965 intSet setflags = intSet_new ();
966
967 allFlagCodes (code)
968 {
969 if (flagcode_isModeFlag (code))
970 {
971 if (gc.setGlobally[code])
972 {
973 (void) intSet_insert (setflags, (int) code);
974 }
975 }
976 } end_allFlagCodes;
977
978 if (!intSet_isEmpty (setflags))
979 {
980 cstring rflags = cstring_undefined;
981 int num = 0;
982
983 intSet_elements (setflags, el)
984 {
985 if (cstring_isUndefined (rflags))
986 {
987 rflags = cstring_copy (flagcode_unparse ((flagcode) (el)));
988 }
989 else
990 {
991 rflags = message ("%q, %s", rflags,
992 flagcode_unparse ((flagcode) el));
993 }
994
995 num++;
996 if (num > 4 && intSet_size (setflags) > 6)
997 {
998 rflags = message ("%q, (%d others) ...", rflags,
999 intSet_size (setflags) - num);
1000 break;
1001 }
1002 } end_intSet_elements ;
1003
982cc10b 1004 if (warn)
1005 {
1006 voptgenerror (FLG_WARNFLAGS,
1007 message ("Setting mode %s after setting mode flags will "
1008 "override set values of flags: %s",
1009 s, rflags),
1010 g_currentloc);
1011 }
616915dd 1012
1013 cstring_free (rflags);
1014 }
1015
1016 intSet_free (setflags);
1017
1018 context_resetModeFlags ();
1019
1020 if (cstring_equalLit (s, "standard"))
1021 {
1022 flagcode modeflags[] =
1023 {
1024 FLG_ENUMINT, FLG_MACROMATCHNAME,
7534721d 1025 FLG_STRINGLITNOROOM,
616915dd 1026 FLG_MACROUNDEF, FLG_RELAXQUALS,
1027 FLG_USEALLGLOBS, FLG_CHECKSTRICTGLOBALS,
1028 FLG_CHECKSTRICTGLOBALIAS,
1029 FLG_CHECKEDGLOBALIAS,
1030 FLG_CHECKMODGLOBALIAS,
1031 FLG_PREDBOOLOTHERS, FLG_PREDBOOLINT,
1d239d69 1032 FLG_UNSIGNEDCOMPARE,
616915dd 1033 FLG_PARAMUNUSED, FLG_VARUNUSED, FLG_FUNCUNUSED,
1034 FLG_TYPEUNUSED,
1035 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED, FLG_FIELDUNUSED,
1d239d69 1036 FLG_PTRNUMCOMPARE, FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1037 FLG_MUTREP, FLG_NOEFFECT, FLG_IMPTYPE,
616915dd 1038 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
28bf4b0b 1039 FLG_SPECUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB, FLG_MISPLACEDSHAREQUAL,
616915dd 1040 FLG_MATCHFIELDS,
28bf4b0b 1041 FLG_FORMATCONST,
616915dd 1042 FLG_MACROPARAMS, FLG_MACROASSIGN, FLG_SEFPARAMS,
1043 FLG_MACROSTMT, FLG_MACROPARENS,
1044 FLG_MACROFCNDECL,
1045 FLG_MACROCONSTDECL,
1046 FLG_MACROREDEF, FLG_INFLOOPS, FLG_UNREACHABLE,
1047 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1048 FLG_FIRSTCASE,
1049 FLG_NESTEDEXTERN,
1050 FLG_NUMLITERAL,
1051 FLG_ZEROBOOL,
1052 /* memchecks flags */
1053 FLG_NULLDEREF,
1054 FLG_NULLSTATE, FLG_NULLASSIGN,
1055 FLG_NULLPASS, FLG_NULLRET,
1056
1057 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1058 FLG_RETSTACK,
1059
1060 /* memtrans flags */
1061 FLG_EXPOSETRANS,
1062 FLG_OBSERVERTRANS,
1063 FLG_DEPENDENTTRANS,
1064 FLG_NEWREFTRANS,
1065 FLG_ONLYTRANS,
1066 FLG_OWNEDTRANS,
1067 FLG_FRESHTRANS,
1068 FLG_SHAREDTRANS,
1069 FLG_TEMPTRANS,
1070 FLG_KEPTTRANS,
1071 FLG_REFCOUNTTRANS,
1072 FLG_STATICTRANS,
1073 FLG_UNKNOWNTRANS,
1074 FLG_KEEPTRANS,
1075 FLG_IMMEDIATETRANS,
1076
1077 FLG_EXPORTLOCAL,
1078
1079 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
2e127cb8 1080 FLG_MUSTFREEONLY,
1081 FLG_MUSTFREEFRESH,
1082 FLG_MUSTDEFINE, FLG_GLOBSTATE,
616915dd 1083 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1084 FLG_MEMIMPLICIT,
1085 FLG_BRANCHSTATE,
28bf4b0b 1086 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1087 FLG_EVALORDER, FLG_SHADOW, FLG_READONLYSTRINGS,
1088 FLG_EXITARG,
1089 FLG_IMPCHECKEDSPECGLOBALS,
1090 FLG_MODGLOBS, FLG_WARNLINTCOMMENTS,
1091 FLG_IFEMPTY, FLG_REALCOMPARE,
1092 FLG_BOOLOPS, FLG_PTRNEGATE,
a956d444 1093 FLG_SHIFTNEGATIVE,
1094 FLG_SHIFTIMPLEMENTATION,
28bf4b0b 1095 FLG_BUFFEROVERFLOWHIGH,
1096 FLG_BUFFEROVERFLOW,
1097 INVALID_FLAG
1098 } ;
616915dd 1099
1100 SETFLAGS ();
1101 }
1102 else if (cstring_equalLit (s, "weak"))
1103 {
1104 flagcode modeflags[] =
1105 {
1106 FLG_BOOLINT, FLG_CHARINT, FLG_FLOATDOUBLE,
1107 FLG_ENUMINT, FLG_RELAXQUALS, FLG_FORWARDDECL,
1108 FLG_CHARINDEX, FLG_ABSTVOIDP, FLG_USEALLGLOBS,
1109 FLG_CHARUNSIGNEDCHAR,
1110 FLG_PREDBOOLOTHERS,
1111 FLG_VARUNUSED, FLG_FUNCUNUSED,
1112 FLG_TYPEUNUSED,
1113 FLG_CHECKSTRICTGLOBALS, FLG_MACROMATCHNAME,
1114 FLG_RETVALOTHER,
1115 FLG_IFEMPTY,
1d239d69 1116 FLG_BUFFEROVERFLOWHIGH,
616915dd 1117 FLG_RETSTACK, FLG_PTRNEGATE,
28bf4b0b 1118 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1119 FLG_LONGUNSIGNEDINTEGRAL,
1120 FLG_LONGUNSIGNEDUNSIGNEDINTEGRAL,
1121 FLG_NUMLITERAL,
1122 FLG_CHARINTLITERAL,
1123 FLG_ZEROBOOL,
28bf4b0b 1124 FLG_BUFFEROVERFLOWHIGH,
616915dd 1125 INVALID_FLAG
1126 } ;
1127
1128 SETFLAGS ();
1129 }
1130 else if (cstring_equalLit (s, "checks"))
1131 {
1132 flagcode modeflags[] =
1133 {
1134 FLG_EXPORTLOCAL, FLG_IMPTYPE,
28bf4b0b 1135 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1136 FLG_CHECKSTRICTGLOBALIAS,
1137 FLG_CHECKEDGLOBALIAS,
1138 FLG_CHECKMODGLOBALIAS,
1139 FLG_UNCHECKEDGLOBALIAS,
28bf4b0b 1140 FLG_FORMATCONST,
7534721d 1141 FLG_STRINGLITNOROOM,
1810fe2a 1142 FLG_STRINGLITNOROOMFINALNULL,
7534721d 1143 FLG_STRINGLITSMALLER,
616915dd 1144 FLG_EXITARG, FLG_PTRNUMCOMPARE,
1d239d69 1145 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1146 FLG_MACROUNDEF, FLG_MUSTMOD, FLG_ALLGLOBALS,
616915dd 1147 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1148 FLG_USEALLGLOBS, FLG_MUTREP, FLG_RETALIAS,
1149 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1150 FLG_FUNCUNUSED, FLG_GLOBALSIMPMODIFIESNOTHING,
1151 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_VARUNUSED,
1152 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1153 FLG_NOEFFECT, FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1154 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
1155 FLG_SPECUNDEF, FLG_IMPCHECKMODINTERNALS,
1156 FLG_DECLUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB,
28bf4b0b 1157 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
616915dd 1158 FLG_MATCHFIELDS,
1159 FLG_MACROPARAMS,
1160 FLG_MACROASSIGN,
1161 FLG_DECLPARAMMATCH,
1162 FLG_FCNDEREF,
1163 FLG_FIRSTCASE,
1164 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1165 FLG_MACROCONSTDECL,
1166 FLG_MACROFCNDECL,
1167 FLG_MACROREDEF,
1168 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1169 FLG_UNREACHABLE,
1170 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE,
1171 FLG_EVALORDER, FLG_USEDEF,
616915dd 1172 FLG_NESTEDEXTERN,
1173
1d239d69 1174 /* warn use flags */
1175 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1176 FLG_BUFFEROVERFLOWHIGH,
1177
616915dd 1178 /* memchecks flags */
1179
1180 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1181 FLG_NULLPASS, FLG_NULLRET,
1182
1183 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF, FLG_RETSTACK,
1184
1185 /* memtrans flags */
1186 FLG_EXPOSETRANS,
1187 FLG_OBSERVERTRANS,
1188 FLG_DEPENDENTTRANS,
1189 FLG_NEWREFTRANS,
1190 FLG_ONLYTRANS,
1191 FLG_OWNEDTRANS,
1192 FLG_FRESHTRANS,
1193 FLG_SHAREDTRANS,
1194 FLG_TEMPTRANS,
1195 FLG_KEPTTRANS,
1196 FLG_REFCOUNTTRANS,
1197 FLG_STATICTRANS,
1198 FLG_UNKNOWNTRANS,
1199 FLG_STATICINITTRANS,
1200 FLG_UNKNOWNINITTRANS,
1201 FLG_KEEPTRANS,
1202 FLG_IMMEDIATETRANS,
1203 FLG_ONLYUNQGLOBALTRANS,
1204 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
2e127cb8 1205 FLG_MUSTFREEONLY,
1206 FLG_MUSTFREEFRESH,
1207 FLG_MUSTDEFINE, FLG_GLOBSTATE,
616915dd 1208 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1209 FLG_MEMIMPLICIT,
1210 FLG_BRANCHSTATE,
1211 FLG_NULLPOINTERARITH,
1212 FLG_SHADOW, FLG_DEPARRAYS,
1213 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1214 FLG_LOOPLOOPBREAK, FLG_SWITCHLOOPBREAK, FLG_MODGLOBS,
1215 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1216 FLG_MACROMATCHNAME, FLG_WARNLINTCOMMENTS,
1217 FLG_INCLUDENEST, FLG_ANSIRESERVED, FLG_CPPNAMES,
1218 FLG_NOPARAMS, FLG_IFEMPTY, FLG_WHILEEMPTY, FLG_REALCOMPARE,
a956d444 1219 FLG_BOOLOPS, FLG_SHIFTNEGATIVE,
1220 FLG_SHIFTIMPLEMENTATION,
28bf4b0b 1221 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
616915dd 1222 INVALID_FLAG } ;
1223
1224 SETFLAGS ();
1225 }
1226 else if (cstring_equalLit (s, "strict"))
1227 {
1228 flagcode modeflags[] =
1229 {
1230 FLG_CHECKSTRICTGLOBALIAS,
1231 FLG_CHECKEDGLOBALIAS,
1232 FLG_CHECKMODGLOBALIAS,
1233 FLG_UNCHECKEDGLOBALIAS,
1234 FLG_MODFILESYSTEM,
1235 FLG_MACROMATCHNAME,
28bf4b0b 1236 FLG_FORMATCONST,
7534721d 1237 FLG_STRINGLITNOROOM,
1810fe2a 1238 FLG_STRINGLITNOROOMFINALNULL,
7534721d 1239 FLG_STRINGLITSMALLER,
28bf4b0b 1240 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1241 FLG_MACROUNDEF, FLG_MUTREP, FLG_MUSTMOD,
1242 FLG_ALLGLOBALS, FLG_IMPTYPE,
1243 FLG_MODNOMODS, FLG_MODGLOBSUNSPEC, FLG_MODSTRICTGLOBSUNSPEC,
1244 FLG_GLOBUNSPEC, FLG_SIZEOFTYPE,
1245 FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1246 FLG_NOPARAMS, FLG_OLDSTYLE, FLG_EXITARG,
1247 FLG_RETSTACK,
1248 FLG_FCNDEREF,
1249 FLG_ONLYUNQGLOBALTRANS,
1250 FLG_GLOBALSIMPMODIFIESNOTHING,
1251 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1252 FLG_INTERNALGLOBS, FLG_INTERNALGLOBSNOGLOBS,
1253 FLG_USEALLGLOBS, FLG_RETALIAS,
1254 FLG_MODGLOBS, FLG_MODGLOBSUNSPEC, FLG_MODGLOBSUNCHECKED,
1255 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1256 FLG_NOEFFECTUNCON, FLG_EVALORDERUNCON,
1257 FLG_FUNCUNUSED,
1258 FLG_EXPORTITER, FLG_EXPORTCONST,
1259 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_TOPUNUSED,
1260 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1261 FLG_VARUNUSED,
1262 FLG_NULLPOINTERARITH, FLG_POINTERARITH,
1263 FLG_PTRNUMCOMPARE,
1d239d69 1264 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1265 FLG_NOEFFECT, FLG_RETVALINT, FLG_RETVALBOOL, FLG_RETVALOTHER,
616915dd 1266 FLG_ANSIRESERVED, FLG_ANSIRESERVEDLOCAL, FLG_CPPNAMES,
1267 FLG_RETVALBOOL, FLG_RETVALINT, FLG_SPECUNDEF,
1268 FLG_DECLUNDEF, FLG_STRICTOPS, FLG_INCONDEFS,
28bf4b0b 1269 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
616915dd 1270 FLG_INCONDEFSLIB, FLG_MATCHFIELDS, FLG_EXPORTMACRO, FLG_EXPORTVAR,
1271 FLG_EXPORTFCN, FLG_EXPORTTYPE, FLG_EXPORTLOCAL, FLG_MACROPARAMS,
1272 FLG_MACROASSIGN,
1273 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1274 FLG_MACROFCNDECL,
1275 FLG_MACROCONSTDECL,
1276 FLG_MACROREDEF, FLG_MACROEMPTY,
1277 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1278 FLG_UNREACHABLE,
1279 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1280 FLG_EVALORDER,
1281 FLG_MODUNCON, FLG_MODUNCONNOMODS, FLG_MODINTERNALSTRICT,
1282 FLG_MODOBSERVERUNCON,
1283
1284 FLG_NESTEDEXTERN,
1285 FLG_FIRSTCASE,
1286
1d239d69 1287 /* warn use flags */
1288 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1289 FLG_BUFFEROVERFLOWHIGH,
1290 FLG_BUFFEROVERFLOW, FLG_TOCTOU,
1291
616915dd 1292 /* memchecks flags */
1293 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1294 FLG_NULLPASS, FLG_NULLRET,
1295
1296 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1297
1298 /* memtrans flags */
1299 FLG_EXPOSETRANS,
1300 FLG_OBSERVERTRANS,
1301 FLG_DEPENDENTTRANS,
1302 FLG_NEWREFTRANS,
1303 FLG_ONLYTRANS,
1304 FLG_OWNEDTRANS,
1305 FLG_FRESHTRANS,
1306 FLG_SHAREDTRANS,
1307 FLG_TEMPTRANS,
1308 FLG_KEPTTRANS,
1309 FLG_REFCOUNTTRANS,
1310 FLG_STATICTRANS,
1311 FLG_UNKNOWNTRANS,
1312 FLG_KEEPTRANS,
1313 FLG_IMMEDIATETRANS,
1314 FLG_STATICINITTRANS,
1315 FLG_UNKNOWNINITTRANS,
1316
1317 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
2e127cb8 1318 FLG_MUSTFREEONLY,
1319 FLG_MUSTFREEFRESH,
1320 FLG_MUSTDEFINE, FLG_GLOBSTATE,
616915dd 1321 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1322 FLG_MEMIMPLICIT,
1323 FLG_BRANCHSTATE,
1324
1325 FLG_DECLPARAMNAME, FLG_DECLPARAMMATCH,
1326
1327 FLG_SHADOW, FLG_DEPARRAYS,
1328 FLG_STRICTDESTROY, FLG_STRICTUSERELEASED, FLG_STRICTBRANCHSTATE,
1329 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1330 FLG_LOOPLOOPBREAK, FLG_LOOPSWITCHBREAK, FLG_SWITCHLOOPBREAK,
1331 FLG_SWITCHSWITCHBREAK, FLG_LOOPLOOPCONTINUE,
1332 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1333 FLG_ALLGLOBALS, FLG_IMPCHECKEDSTRICTGLOBALS,
1334 FLG_IMPCHECKEDSTRICTSTATICS,
1335 FLG_IMPCHECKEDSTRICTSPECGLOBALS,
1336 FLG_IMPCHECKMODINTERNALS,
1337 FLG_WARNMISSINGGLOBALS, FLG_WARNMISSINGGLOBALSNOGLOBS,
1338 FLG_WARNLINTCOMMENTS, FLG_ANSIRESERVEDLOCAL,
1339 FLG_INCLUDENEST, FLG_STRINGLITERALLEN,
1340 FLG_NUMSTRUCTFIELDS, FLG_NUMENUMMEMBERS,
1341 FLG_CONTROLNESTDEPTH,
1342 FLG_FORBLOCK, FLG_WHILEBLOCK,
1343 FLG_FOREMPTY, FLG_WHILEEMPTY,
1344 FLG_IFEMPTY, FLG_IFBLOCK,
1345 FLG_ELSEIFCOMPLETE,
1346 FLG_REALCOMPARE, FLG_BOOLOPS,
1347 FLG_SYSTEMDIRERRORS, FLG_UNUSEDSPECIAL,
1348
a956d444 1349 FLG_SHIFTNEGATIVE,
1350 FLG_SHIFTIMPLEMENTATION,
1351 FLG_BITWISEOPS,
28bf4b0b 1352 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1353 INVALID_FLAG
1354 } ;
616915dd 1355
1356 SETFLAGS ();
1357 }
1358 else
1359 {
1360 llcontbug (message ("context_setMode: bad mode: %s", s));
1361 }
1362}
1363
1364bool
1365context_isSpecialFile (cstring fname)
1366{
28bf4b0b 1367 cstring ext = fileLib_getExtension (fname);
616915dd 1368
28bf4b0b 1369 return (cstring_equalLit (ext, ".y")
1370 || cstring_equalLit (ext, ".l")
616915dd 1371 || cstring_equalLit (fname, "lex.yy.c"));
1372}
1373
1374bool
1375context_isSystemDir (cstring dir)
1376{
68de3f33 1377 cstring thisdir = cstring_copy (context_getString (FLG_SYSTEMDIRS));
1378 cstring savedir = thisdir;
1379 cstring nextdir = cstring_afterChar (thisdir, PATH_SEPARATOR);
1380
1381 if (cstring_isDefined (nextdir))
616915dd 1382 {
68de3f33 1383 /*@access cstring@*/
1384 *nextdir = '\0'; /* closes thisdir */
616915dd 1385 nextdir += 1;
68de3f33 1386 /*@noaccess cstring@*/
616915dd 1387 }
1388
68de3f33 1389 /* 2001-09-09: added thisdir[0] != '\0'
1390 ** herbert: don't compare with an empty name!
1391 ** should return false for empty directory path
1392 */
1393
1394 while (!cstring_isEmpty (thisdir))
616915dd 1395 {
1396 DPRINTF (("Test: %s / %s", dir, thisdir));
1397
68de3f33 1398 if (osd_equalCanonicalPrefix (dir, thisdir))
616915dd 1399 {
68de3f33 1400 cstring_free (savedir);
616915dd 1401 return TRUE;
1402 }
1403
68de3f33 1404 if (cstring_isDefined (nextdir))
616915dd 1405 {
1406 thisdir = nextdir;
68de3f33 1407 nextdir = cstring_afterChar (thisdir, PATH_SEPARATOR);
616915dd 1408
68de3f33 1409 if (cstring_isDefined (nextdir))
616915dd 1410 {
68de3f33 1411 /*@access cstring@*/
616915dd 1412 *nextdir = '\0';
1413 nextdir += 1;
68de3f33 1414 /*@noaccess cstring@*/
616915dd 1415 }
1416 }
1417 else
1418 {
1419 break;
1420 }
1421 }
1422
1423 DPRINTF (("Returns FALSE"));
68de3f33 1424 cstring_free (savedir);
616915dd 1425 return FALSE;
1426}
1427
1428void
1429context_addFileAccessType (typeId t)
1430{
1431 cstring base;
1432
28bf4b0b 1433 if (context_inFunctionLike ())
616915dd 1434 {
1435 gc.acct = typeIdSet_insert (gc.acct, t);
1436 }
1437
1438 gc.facct = typeIdSet_insert (gc.facct, t);
1439
1440 base = fileloc_getBase (g_currentloc);
1441 insertModuleAccess (base, t);
1442 DPRINTF (("Add file access: %s / %s", typeIdSet_unparse (gc.facct),
1443 typeIdSet_unparse (gc.acct)));
1444}
1445
1446void
1447context_removeFileAccessType (typeId t)
1448{
1449 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
1450 || gc.kind == CX_UNKNOWNMACRO)
1451 {
1452 gc.acct = typeIdSet_removeFresh (gc.acct, t);
1453 }
1454
1455 gc.facct = typeIdSet_removeFresh (gc.facct, t);
1456 gc.nacct = typeIdSet_insert (gc.nacct, t);
1457}
1458
28bf4b0b 1459void context_enterFunctionHeader (void)
616915dd 1460{
b7e84605 1461 if (context_getFlag (FLG_GRAMMAR))
1462 {
1463 lldiagmsg (message ("Enter function header: %q", context_unparse ()));
1464 }
1465
ba45e1e4 1466 if (gc.kind != CX_GLOBAL)
1467 {
1468 llparseerror (cstring_makeLiteral
1469 ("Likely parse error. Function header outside global context."));
1470 }
1471 else
1472 {
1473 llassert (gc.kind == CX_GLOBAL);
1474 DPRINTF (("Enter function header!"));
1475 gc.inFunctionHeader = TRUE;
1476 }
616915dd 1477}
1478
28bf4b0b 1479void context_exitFunctionHeader (void)
616915dd 1480{
b7e84605 1481 if (context_getFlag (FLG_GRAMMAR))
1482 {
1483 lldiagmsg (message ("Exit function header: %q", context_unparse ()));
1484 }
1485
d9a28762 1486 DPRINTF (("Exit function header!"));
1487 gc.inFunctionHeader = FALSE;
616915dd 1488}
1489
28bf4b0b 1490bool context_inFunctionHeader (void)
1491{
d9a28762 1492 return (gc.inFunctionHeader);
28bf4b0b 1493}
1494
1495void context_enterFunctionDeclaration (uentry e)
1496{
b7e84605 1497 if (context_getFlag (FLG_GRAMMAR))
1498 {
1499 lldiagmsg (message ("Enter function declaration: %q", context_unparse ()));
1500 }
1501
28bf4b0b 1502 DPRINTF (("Enter function decl"));
1503 llassert (gc.savekind == CX_ERROR);
1504 gc.savekind = gc.kind;
b7e84605 1505 gc.savecont = gc.cont;
28bf4b0b 1506 gc.kind = CX_FCNDECLARATION;
1507 gc.cont.fcn = e;
1508}
1509
1510void context_exitFunctionDeclaration (void)
616915dd 1511{
b7e84605 1512 if (context_getFlag (FLG_GRAMMAR))
1513 {
1514 lldiagmsg (message ("Exit function declaration: %q", context_unparse ()));
1515 }
1516
28bf4b0b 1517 DPRINTF (("Exit function decl"));
1518 llassert (gc.savekind != CX_ERROR);
1519 llassert (gc.kind == CX_FCNDECLARATION);
1520 gc.kind = gc.savekind;
b7e84605 1521 gc.cont = gc.savecont;
1522
28bf4b0b 1523 gc.savekind = CX_ERROR;
b7e84605 1524
1525 if (context_getFlag (FLG_GRAMMAR))
1526 {
1527 lldiagmsg (message ("After exit function declaration: %q", context_unparse ()));
1528 }
616915dd 1529}
1530
28bf4b0b 1531bool context_inFunctionDeclaration (void)
1532{
1533 return (gc.kind == CX_FCNDECLARATION);
1534}
1535
1536
616915dd 1537void
1538context_enterMacro (/*@observer@*/ uentry e)
1539{
1540 context_enterFunction (e);
1541 gc.kind = CX_MACROFCN;
1542}
1543
1544void
1545context_enterUnknownMacro (/*@dependent@*/ uentry e)
1546{
1547 llassert (uentry_isFunction (e));
1548 context_enterFunction (e);
1549 gc.kind = CX_UNKNOWNMACRO;
1550}
1551
1552void context_enterAndClause (exprNode e)
1553{
1554
1555 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1556 pushClause (ANDCLAUSE);
1557}
1558
1559void context_enterOrClause (exprNode e)
1560{
1561 usymtab_trueBranch (guardSet_invert (exprNode_getGuards (e)));
1562 pushClause (ORCLAUSE);
1563}
1564
1565bool context_inDeepLoop (void)
1566{
1567 bool inLoop = FALSE;
1568
1569 clauseStack_elements (gc.clauses, el)
1570 {
1571 if (clause_isLoop (el))
1572 {
1573 if (inLoop)
1574 {
1575 return TRUE;
1576 }
1577
1578 inLoop = TRUE;
1579 }
1580 } end_clauseStack_elements;
1581
1582 return FALSE;
1583}
1584
1585bool context_inDeepSwitch (void)
1586{
1587 bool inLoop = FALSE;
1588
1589 clauseStack_elements (gc.clauses, el)
1590 {
1591 if (clause_isSwitch (el))
1592 {
1593 if (inLoop)
1594 {
1595 return TRUE;
1596 }
1597
1598 inLoop = TRUE;
1599 }
1600 } end_clauseStack_elements;
1601
1602 return FALSE;
1603}
1604
1605bool context_inDeepLoopSwitch (void)
1606{
1607 bool inLoop = FALSE;
1608
1609 clauseStack_elements (gc.clauses, el)
1610 {
1611 if (clause_isBreakable (el))
1612 {
1613 if (inLoop)
1614 {
1615 return TRUE;
1616 }
1617
1618 inLoop = TRUE;
1619 }
1620 } end_clauseStack_elements;
1621
1622 return FALSE;
1623}
1624
1625clause context_breakClause (void)
1626{
1627 clauseStack_elements (gc.clauses, el)
1628 {
1629 if (clause_isSwitch (el))
1630 {
1631 return el;
1632 }
1633 else if (clause_isLoop (el))
1634 {
1635 return el;
1636 }
1637 else
1638 {
1639 ;
1640 }
1641 } end_clauseStack_elements;
1642
1643 return NOCLAUSE;
1644}
1645
1646clause context_nextBreakClause (void)
1647{
1648 bool hasOne = FALSE;
1649
1650 clauseStack_elements (gc.clauses, el)
1651 {
1652 if (clause_isBreakable (el))
1653 {
1654 if (hasOne)
1655 {
1656 return el;
1657 }
1658 else
1659 {
1660 hasOne = TRUE;
1661 }
1662 }
1663 } end_clauseStack_elements;
1664
1665 return NOCLAUSE;
1666}
1667
1668bool context_inConditional (void)
1669{
1670 clauseStack_elements (gc.clauses, el)
1671 {
1672 /*
1673 ** Should also include TRUECLAUSE and FALSECLAUSE, but need
1674 ** to distinguish if from ? for this
1675 */
1676
1677 if (clause_isBreakable (el) && (el != DOWHILECLAUSE))
1678 {
1679 return TRUE;
1680 }
1681 } end_clauseStack_elements;
1682
1683 return FALSE;
1684}
1685
1686void context_exitAndClause (exprNode pred, exprNode tbranch)
1687{
1688 context_setJustPopped ();
1689
1690 llassert (gc.inclause == ANDCLAUSE);
1691
1692 usymtab_popAndBranch (pred, tbranch);
1693 clauseStack_pop (gc.clauses);
1694 gc.inclause = topClause (gc.clauses);
1695}
1696
1697void context_exitOrClause (exprNode pred, exprNode tbranch)
1698{
1699 context_setJustPopped ();
1700
1701 llassert (gc.inclause == ORCLAUSE);
1702
1703 usymtab_popOrBranch (pred, tbranch);
1704 clauseStack_pop (gc.clauses);
1705 gc.inclause = topClause (gc.clauses);
1706}
1707
1708static void context_enterCondClauseAux (clause cl)
1709 /*@modifies gc@*/
1710{
1711 pushClause (cl);
1712}
1713
1714static void context_enterTrueAux (exprNode e, clause cl)
1715 /*@modifies gc@*/
1716{
1717 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1718 pushClause (cl);
1719}
1720
1721void context_enterIterClause (void)
1722{
1723 context_enterTrueAux (exprNode_undefined, ITERCLAUSE);
1724}
1725
1726void context_enterDoWhileClause (void)
1727{
1728 pushClause (DOWHILECLAUSE);
1729}
1730
1731void context_enterWhileClause (exprNode e)
1732{
1733 context_enterTrueAux (e, WHILECLAUSE);
1734}
1735
1736void context_enterForClause (exprNode e)
1737{
1738 context_enterTrueAux (e, FORCLAUSE);
1739}
1740
1741void context_enterTrueClause (exprNode e)
1742{
1743 context_enterTrueAux (e, TRUECLAUSE);
1744}
1745
1746void context_enterSwitch (exprNode e)
1747{
7ac543fa 1748 DPRINTF (("Enter switch: %s", exprNode_unparse (e)));
616915dd 1749 usymtab_switchBranch (e);
1750 context_enterCondClauseAux (SWITCHCLAUSE);
1751}
1752
1753void context_exitSwitch (exprNode e, bool allpaths)
1754{
7ac543fa 1755 usymtab_exitSwitch (e, allpaths);
616915dd 1756
1757 while (clause_isCase (clauseStack_top (gc.clauses)))
1758 {
1759 clauseStack_pop (gc.clauses);
1760 }
1761
1762 context_exitClauseSimp ();
1763}
1764
1765void context_enterCaseClause (exprNode e)
1766{
1767 bool branch = FALSE;
1768
1769 DPRINTF (("Enter case clause!"));
1770
1771 branch = usymtab_newCase (exprNode_undefined, e);
1772
1773 if (branch)
1774 {
1775 context_enterCondClauseAux (CASECLAUSE);
1776 }
1777}
1778
1779static void context_enterFalseClauseAux (exprNode e, clause cl)
1780 /*@modifies gc@*/
1781{
1782 usymtab_altBranch (guardSet_invert (exprNode_getGuards (e)));
1783 gc.inclause = cl;
1784 clauseStack_switchTop (gc.clauses, cl);
1785}
1786
1787void context_enterFalseClause (exprNode e)
1788{
1789
1790 context_enterFalseClauseAux (e, FALSECLAUSE);
1791}
1792
1793void
1794context_enterConstantMacro (/*@exposed@*/ /*@dependent@*/ uentry e)
1795{
1796 gc.kind = CX_MACROCONST;
1797 gc.cont.fcn = e;
1798 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1799
1800 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1801 gc.nacct);
1802
1803
1804 usymtab_enterScope ();
1805 sRef_enterFunctionScope ();
1806
1807 gc.globs = globSet_undefined;
1808 globSet_clear (gc.globs_used);
1809 gc.mods = sRefSet_undefined;
1810}
1811
1812uentry context_getHeader (void)
1813{
1814 if (!(context_inFunctionLike () || (gc.kind == CX_MACROCONST)))
1815 {
1816 llfatalbug (message ("context_getHeader: bad call: %q",
1817 context_unparse ()));
1818 }
1819
1820 return (gc.cont.fcn);
1821}
1822
1823void
1824context_setFunctionDefined (fileloc loc)
1825{
1826 switch (gc.kind)
1827 {
1828 case CX_UNKNOWNMACRO:
1829 case CX_FUNCTION:
1830 case CX_MACROFCN:
1831 uentry_setFunctionDefined (gc.cont.fcn, loc);
1832 break;
1833 default:
1834 /* (not a bug because of parse errors) */
1835 break;
1836 }
1837}
1838
1839void
1840context_enterFunction (/*@exposed@*/ uentry e)
1841{
1842 gc.kind = CX_FUNCTION;
1843 gc.cont.fcn = e;
1844
28bf4b0b 1845 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1846
616915dd 1847 if (uentry_hasAccessType (e))
1848 {
1849 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1850 gc.nacct);
1851 }
1852 else
1853 {
1854 gc.acct = gc.facct;
1855 }
1856
1857 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1858 typeIdSet_unparse (gc.acct)));
1859
1860 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1861
1862 gc.globs = uentry_getGlobs (e);
1863 globSet_clear (gc.globs_used);
1864 gc.mods = uentry_getMods (e);
1865
1866 usymtab_enterFunctionScope (e);
1867 sRef_enterFunctionScope ();
1868}
1869
c21b4c87 1870bool context_inOldSytleScope(void)
1871{
1872 if (gc.kind == CX_OLDSTYLESCOPE)
1873 return TRUE;
1874 else
1875 return FALSE;
1876}
1877
7ebcc5bb 1878void
1879context_enterOldStyleScope (void)
1880{
1881 gc.kind = CX_OLDSTYLESCOPE;
1882 DPRINTF (("Enter old style scope!"));
1883 usymtab_enterFunctionScope (uentry_undefined);
1884}
1885
1886void
1887context_completeOldStyleFunction (uentry e)
1888{
1889 llassert (gc.kind == CX_OLDSTYLESCOPE);
1890
1891 gc.kind = CX_FUNCTION;
1892 gc.cont.fcn = e;
1893
1894 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1895
1896 if (uentry_hasAccessType (e))
1897 {
1898 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1899 gc.nacct);
1900 }
1901 else
1902 {
1903 gc.acct = gc.facct;
1904 }
1905
1906 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1907 typeIdSet_unparse (gc.acct)));
1908
1909 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1910
1911 if (!globSet_isEmpty (uentry_getGlobs (e)))
1912 {
1913 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1914 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1915 }
1916
1917 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1918
1919 gc.globs = uentry_getGlobs (e);
1920 globSet_clear (gc.globs_used);
1921
1922 gc.mods = uentry_getMods (e);
1923
1924 if (!sRefSet_isEmpty (gc.mods))
1925 {
1926 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1927 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1928 }
1929
1930 sRef_enterFunctionScope ();
1931}
1932
616915dd 1933static bool context_checkStrictGlobals (void)
1934{
1935 return (context_getFlag (FLG_CHECKSTRICTGLOBALS));
1936}
1937
1938static bool context_hasGlobs (void)
1939{
1940 if (context_inFunctionLike ())
1941 {
1942 return (uentry_hasGlobs (gc.cont.fcn));
1943 }
1944 else
1945 {
1946 return (FALSE);
1947 }
1948}
1949
1950static bool context_checkCheckedGlobals (void)
1951{
1952 return (context_getFlag (FLG_GLOBALS)
1953 && (context_getFlag (FLG_GLOBUNSPEC)
1954 || context_hasGlobs ()));
1955}
1956
1957static bool context_checkUnknownGlobals (void)
1958{
1959 /* should be uentry_hasGlobs ? */
1960
1961 return (context_getFlag (FLG_ALLGLOBALS)
1962 && (context_getFlag (FLG_GLOBUNSPEC)
1963 || context_hasGlobs ()));
1964}
1965
1966static bool context_checkUncheckedGlobals (void)
1967{
1968 return (FALSE);
1969}
1970
1971bool
1972context_checkExport (uentry e)
1973{
1974 if (!gc.anyExports) return FALSE;
1975
1976 if (uentry_isFunction (e)
1977 || (uentry_isVariable (e) && ctype_isFunction (uentry_getType (e))))
1978 {
1979 return context_maybeSet (FLG_EXPORTFCN);
1980 }
1981 else if (uentry_isExpandedMacro (e))
1982 {
1983 return context_maybeSet (FLG_EXPORTMACRO);
1984 }
1985 else if (uentry_isVariable (e))
1986 {
1987 return context_maybeSet (FLG_EXPORTVAR);
1988 }
1989 else if (uentry_isEitherConstant (e))
1990 {
1991 return context_maybeSet (FLG_EXPORTCONST);
1992 }
1993 else if (uentry_isIter (e) || uentry_isEndIter (e))
1994 {
1995 return context_maybeSet (FLG_EXPORTITER);
1996 }
1997 else if (uentry_isDatatype (e))
1998 {
1999 return context_maybeSet (FLG_EXPORTTYPE);
2000 }
2001 else
2002 {
2003 BADEXIT;
2004 }
2005}
2006
2007bool
2008context_checkGlobUse (uentry glob)
2009{
2010
2011 if (uentry_isCheckedStrict (glob))
2012 {
2013 return context_checkStrictGlobals ();
2014 }
2015 else if (uentry_isChecked (glob))
2016 {
2017 return context_checkCheckedGlobals ();
2018 }
2019 else if (uentry_isCheckedUnknown (glob) || uentry_isCheckMod (glob))
2020 {
2021 return context_checkUnknownGlobals ();
2022 }
2023 else
2024 {
2025 llassert (uentry_isUnchecked (glob));
2026
2027 return context_checkUncheckedGlobals ();
2028 }
2029}
2030
2031bool
2032context_checkAliasGlob (uentry glob)
2033{
2034 if (uentry_isCheckedStrict (glob))
2035 {
2036 return gc.flags[FLG_CHECKSTRICTGLOBALIAS];
2037 }
2038 else if (uentry_isChecked (glob))
2039 {
2040 return gc.flags[FLG_CHECKEDGLOBALIAS];
2041 }
2042 else if (uentry_isCheckMod (glob))
2043 {
2044 return gc.flags[FLG_CHECKMODGLOBALIAS];
2045 }
2046 else
2047 {
2048 llassert (uentry_isUnchecked (glob) || uentry_isCheckedUnknown (glob));
2049
2050 return gc.flags[FLG_UNCHECKEDGLOBALIAS];
2051 }
2052}
2053
2054bool context_checkInternalUse (void)
2055{
2056 if (context_hasGlobs ())
2057 {
2058 return (gc.flags[FLG_INTERNALGLOBS]);
2059 }
2060 else
2061 {
2062 return (gc.flags[FLG_INTERNALGLOBSNOGLOBS]);
2063 }
2064}
2065
2066bool
2067context_checkGlobMod (sRef el)
2068{
2069 uentry ue = sRef_getUentry (el);
2070
28bf4b0b 2071 /* no: llassert (sRef_isFileOrGlobalScope (el)); also check local statics */
616915dd 2072
2073 if (uentry_isCheckedModify (ue)
2074 || (!uentry_isUnchecked (ue) && (gc.flags[FLG_ALLGLOBALS])))
2075 {
2076 if (context_hasMods ())
2077 {
2078 return (gc.flags[FLG_MODGLOBS]);
2079 }
2080 else
2081 {
2082 if (uentry_isCheckedStrict (ue))
2083 {
2084 return (gc.flags[FLG_MODGLOBSUNSPEC]);
2085 }
2086 else
2087 {
2088 return (gc.flags[FLG_MODSTRICTGLOBSUNSPEC]);
2089 }
2090 }
2091 }
2092 else
2093 {
2094 if (context_hasMods ())
2095 {
2096 return (gc.flags[FLG_MODGLOBSUNCHECKED]);
2097 }
2098 else
2099 {
2100 return FALSE;
2101 }
2102 }
2103}
2104
2105void
28bf4b0b 2106context_usedGlobal (/*@exposed@*/ sRef el)
616915dd 2107{
2108 if (!globSet_member (gc.globs_used, el))
2109 {
2110 /*
2111 ** The first time a global is used in a function, we need
2112 ** to clear the derived sRefs, since they were set for the
2113 ** previous function.
2114 */
2115
2116 sRef_clearDerived (el);
2117 gc.globs_used = globSet_insert (gc.globs_used, el);
2118 }
2119}
2120
2121/*@observer@*/ sRefSet
2122context_modList (void)
2123{
2124 return gc.mods;
2125}
2126
2127bool
2128context_globAccess (sRef s)
2129{
28bf4b0b 2130 llassert (sRef_isFileOrGlobalScope (s) || sRef_isKindSpecial (s));
616915dd 2131 return (globSet_member (gc.globs, s));
2132}
2133
2134bool
2135context_hasAccess (typeId t)
2136{
2137 if (context_inFunctionLike ())
2138 {
28bf4b0b 2139 DPRINTF (("Access %d / %s",
2140 t, typeIdSet_unparse (gc.acct)));
616915dd 2141 return (typeIdSet_member (gc.acct, t));
2142 }
2143 else
2144 {
2145 return (context_hasFileAccess (t));
2146 }
2147}
2148
2149bool
2150context_hasFileAccess (typeId t)
2151{
2152 return (typeIdSet_member (gc.facct, t));
2153}
2154
2155/*@only@*/ cstring
2156context_unparseAccess (void)
2157{
2158 return (message ("%q / %q", typeIdSet_unparse (gc.acct),
2159 typeIdSet_unparse (gc.facct)));
2160}
2161
2162/*@only@*/ cstring
2163context_unparseClauses (void)
2164{
2165 return (clauseStack_unparse (gc.clauses));
2166}
2167
2168bool
2169context_couldHaveAccess (typeId t)
2170{
2171 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO)
2172 {
2173 return (typeIdSet_member (gc.acct, t));
2174 }
2175 else
2176 {
2177 return (typeIdSet_member (gc.facct, t));
2178 }
2179}
2180
2181ctype
2182context_getRetType (void)
2183{
2184 ctype f = ctype_undefined;
2185
2186 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
2187 {
2188 f = uentry_getType (gc.cont.fcn);
2189 }
2190 else if (gc.kind == CX_UNKNOWNMACRO)
2191 {
2192 return ctype_unknown;
2193 }
2194 else
2195 {
2196 llcontbuglit ("context_getRetType: not in a function context");
2197 return ctype_unknown;
2198 }
2199
2200 if (!ctype_isFunction (f))
2201 {
2202 if (ctype_isKnown (f))
2203 {
2204 llbuglit ("context_getRetType: not a function");
2205 }
2206
2207 return ctype_unknown;
2208 }
28bf4b0b 2209 return (ctype_getReturnType (f));
616915dd 2210}
2211
2212bool
2213context_hasMods (void)
2214{
2215 if (context_inFunctionLike ())
2216 {
2217 return (uentry_hasMods (gc.cont.fcn));
2218 }
2219 else
2220 {
2221 return FALSE;
2222 }
2223}
2224
2225void
2226context_exitAllClauses (void)
28bf4b0b 2227{
616915dd 2228 while (!clauseStack_isEmpty (gc.clauses))
2229 {
2230 clause el = clauseStack_top (gc.clauses);
616915dd 2231 gc.inclause = el;
2232
2233 if (clause_isNone (el))
2234 {
2235 usymtab_quietExitScope (g_currentloc);
2236 clauseStack_pop (gc.clauses);
2237 }
2238 else
2239 {
2240 context_exitClausePlain ();
2241 }
2242 }
2243
28bf4b0b 2244 clauseStack_clear (gc.clauses);
2245 gc.inclause = NOCLAUSE;
2246}
616915dd 2247
28bf4b0b 2248void
2249context_exitAllClausesQuiet (void)
2250{
2251 while (!clauseStack_isEmpty (gc.clauses))
2252 {
2253 clause el = clauseStack_top (gc.clauses);
2254 gc.inclause = el;
2255
2256 usymtab_quietExitScope (g_currentloc);
2257 clauseStack_pop (gc.clauses);
2258 }
2259
2260 clauseStack_clear (gc.clauses);
616915dd 2261 gc.inclause = NOCLAUSE;
2262}
2263
2264static
2265void context_exitClauseSimp (void)
2266{
2267
2268 context_setJustPopped ();
2269 clauseStack_pop (gc.clauses);
2270 gc.inclause = topClause (gc.clauses);
2271}
2272
2273static
2274void context_exitCaseClause (void)
2275{
2276 context_setJustPopped ();
2277 usymtab_popCaseBranch ();
2278 clauseStack_pop (gc.clauses);
2279 gc.inclause = topClause (gc.clauses);
2280}
2281
2282static
2283void context_exitClauseAux (exprNode pred, exprNode tbranch)
2284{
2285 context_setJustPopped ();
28bf4b0b 2286 /*@i32 was makeAlt */
616915dd 2287 usymtab_popTrueBranch (pred, tbranch, gc.inclause);
2288 clauseStack_pop (gc.clauses);
2289 gc.inclause = topClause (gc.clauses);
2290}
2291
2292void context_exitTrueClause (exprNode pred, exprNode tbranch)
2293{
28bf4b0b 2294 DPRINTF (("Exit true clause: %s", exprNode_unparse (tbranch)));
2295
616915dd 2296 if (gc.inclause != TRUECLAUSE)
2297 {
2298 llparseerror (cstring_makeLiteral
2299 ("Likely parse error. Conditional clauses are inconsistent."));
2300 return;
2301 }
28bf4b0b 2302
2303 context_setJustPopped ();
616915dd 2304 usymtab_popTrueBranch (pred, tbranch, TRUECLAUSE);
2305 clauseStack_pop (gc.clauses);
28bf4b0b 2306 gc.inclause = topClause (gc.clauses);
2307}
616915dd 2308
2309void context_exitIterClause (exprNode body)
2310{
2311 llassert (gc.inclause == ITERCLAUSE);
2312
2313 context_setJustPopped ();
2314
3e3ec469 2315 if (context_getFlag (FLG_ITERLOOPEXEC))
616915dd 2316 {
2317 usymtab_popTrueExecBranch (exprNode_undefined, body, ITERCLAUSE);
2318 }
2319 else
2320 {
2321 usymtab_popTrueBranch (exprNode_undefined, body, ITERCLAUSE);
2322 }
2323
2324 clauseStack_pop (gc.clauses);
2325 gc.inclause = topClause (gc.clauses);
2326}
2327
2328static void context_popCase (void) {
2329 /*
2330 ** If we are exiting an outer clause, sometimes still in a switch case.
2331 **
2332 ** e.g.:
2333 **
2334 ** switch(a)
2335 ** {
2336 ** case 1:
2337 ** while (c>3)
2338 ** {
2339 ** case 3: ++c;
2340 ** }
2341 ** }
2342 */
2343
2344 DPRINTF (("Popping case clause: %s",
2345 clauseStack_unparse (gc.clauses)));
28bf4b0b 2346
616915dd 2347 if (gc.inclause == CASECLAUSE) {
2348 context_exitCaseClause ();
2349 }
2350}
2351
2352void context_exitWhileClause (exprNode pred, exprNode body)
2353{
2354 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2355
2356 context_popCase ();
2357
2358 if (gc.inclause != WHILECLAUSE) {
2359 DPRINTF (("Clause: %s / %s", clause_unparse (gc.inclause),
2360 clauseStack_unparse (gc.clauses)));
2361 }
2362
2363 llassert (gc.inclause == WHILECLAUSE);
2364
2365 context_setJustPopped ();
2366
2367
2368 /*
2369 ** predicate must be false after while loop (unless there are breaks)
2370 */
2371
3e3ec469 2372 if (context_getFlag (FLG_WHILELOOPEXEC))
616915dd 2373 {
2374 usymtab_popTrueExecBranch (pred, body, WHILECLAUSE);
2375 }
2376 else
2377 {
2378 usymtab_popTrueBranch (pred, body, WHILECLAUSE);
2379 }
2380
2381
2382 usymtab_addGuards (invGuards);
2383 guardSet_free (invGuards);
2384
2385 clauseStack_pop (gc.clauses);
2386 gc.inclause = topClause (gc.clauses);
2387}
2388
2389void context_exitDoWhileClause (exprNode pred)
2390{
2391 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2392
2393 if (gc.inclause == CASECLAUSE) {
2394 /* handle Duff's device */
2395 clauseStack_pop (gc.clauses);
2396 gc.inclause = topClause (gc.clauses);
2397 }
2398
2399 llassert (gc.inclause == DOWHILECLAUSE);
2400
2401 context_setJustPopped ();
2402
2403
2404 usymtab_addGuards (invGuards);
2405 guardSet_free (invGuards);
2406
2407 clauseStack_pop (gc.clauses);
2408 gc.inclause = topClause (gc.clauses);
2409}
2410
2411void context_exitForClause (exprNode forPred, exprNode body)
2412{
2413 guardSet invGuards = guardSet_invert (exprNode_getForGuards (forPred));
2414
2415 llassert (gc.inclause == FORCLAUSE);
2416 context_setJustPopped ();
2417
3e3ec469 2418 DPRINTF (("Exit for: %s / %s", exprNode_unparse (forPred), exprNode_unparse (body)));
2419
616915dd 2420 /*
3e3ec469 2421 ** Predicate must be false after for loop (unless there are breaks)
616915dd 2422 */
2423
3e3ec469 2424 if (context_getFlag (FLG_FORLOOPEXEC))
616915dd 2425 {
3e3ec469 2426 DPRINTF (("Here: for loop exec"));
28bf4b0b 2427 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
616915dd 2428 }
2429 else
2430 {
3e3ec469 2431 if (context_getFlag (FLG_OBVIOUSLOOPEXEC)
2432 && exprNode_loopMustExec (forPred))
2433 {
2434 DPRINTF (("Here: loop must exec"));
2435 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
2436 }
2437 else
2438 {
2439 DPRINTF (("Pop true branch:"));
2440 usymtab_popTrueBranch (forPred, body, FORCLAUSE);
2441 }
616915dd 2442 }
2443
2444 usymtab_addGuards (invGuards);
2445 guardSet_free (invGuards);
2446 clauseStack_pop (gc.clauses);
2447 gc.inclause = topClause (gc.clauses);
2448}
2449
2450static void context_exitClausePlain (void)
2451{
2452 llassert (gc.inclause != NOCLAUSE);
2453
2454 if (gc.inclause == FALSECLAUSE)
2455 {
2456 context_exitClause (exprNode_undefined, exprNode_undefined, exprNode_undefined);
2457 }
2458 else
2459 {
2460 context_exitClauseAux (exprNode_undefined, exprNode_undefined);
2461 }
616915dd 2462}
2463
2464void context_exitClause (exprNode pred, exprNode tbranch, exprNode fbranch)
2465{
616915dd 2466 context_setJustPopped ();
28bf4b0b 2467
616915dd 2468 if (gc.inclause == FALSECLAUSE)
2469 {
2470 usymtab_popBranches (pred, tbranch, fbranch, FALSE, FALSECLAUSE);
28bf4b0b 2471
616915dd 2472 llassert (clauseStack_top (gc.clauses) == FALSECLAUSE);
2473
2474 clauseStack_pop (gc.clauses);
2475 gc.inclause = topClause (gc.clauses);
2476 }
2477 else
2478 {
28bf4b0b 2479 context_exitTrueClause (pred, tbranch);
616915dd 2480 }
2481}
2482
2483void
2484context_returnFunction (void)
2485{
2486 usymtab_checkFinalScope (TRUE);
2487}
2488
2489void
2490context_exitFunction (void)
2491{
b7e84605 2492 DPRINTF (("Exit function: %s", context_unparse ()));
2493
616915dd 2494 if (!context_inFunction () && !context_inMacroConstant ()
b7e84605 2495 && !context_inUnknownMacro ()
616915dd 2496 && !context_inIterDef () && !context_inIterEnd ())
2497 {
2498 /*
2499 ** not a bug because of parse errors
2500 */
b7e84605 2501
2502 BADBRANCH;
616915dd 2503 }
2504 else
2505 {
2506 if (context_inMacro () && usymtab_inFunctionScope ())
2507 {
2508 usymtab_exitScope (exprNode_undefined);
2509 }
2510
2511 if (uentry_hasGlobs (gc.cont.fcn))
2512 {
2513 exprChecks_checkUsedGlobs (gc.globs, gc.globs_used);
2514 }
2515
2516
2517 if (uentry_hasMods (gc.cont.fcn))
2518 {
2519 if (context_getFlag (FLG_MUSTMOD))
2520 {
2521 exprNode_checkAllMods (gc.mods, gc.cont.fcn);
2522 }
2523 }
2524
28bf4b0b 2525 DPRINTF (("Exit function: %s", uentry_unparse (gc.cont.fcn)));
2526
616915dd 2527 /*
2528 ** clear file static modifies
2529 */
2530
2531 /* do this first to get unused error messages */
2532
2533 usymtab_exitScope (exprNode_undefined);
2534 sRef_exitFunctionScope ();
2535
2536 gc.showfunction = FALSE;
2537 gc.kind = CX_GLOBAL;
2538 gc.cont.glob = TRUE;
2539 gc.acct = gc.facct;
2540 gc.globs = globSet_new ();
2541 globSet_clear (gc.globs_used);
2542 gc.mods = sRefSet_new ();
2543 }
2544
2545 llassert (clauseStack_isEmpty (gc.clauses));
2546 llassert (gc.inclause == NOCLAUSE);
b7e84605 2547 DPRINTF (("After exit function: %s", context_unparse ()));
616915dd 2548}
2549
2550void
2551context_quietExitFunction (void)
2552{
2553 while (gc.kind == CX_INNER)
2554 {
2555 context_exitInnerPlain ();
2556 }
2557
b7e84605 2558 if (!context_inFunction () && !context_inMacroConstant () && !context_inUnknownMacro ()
616915dd 2559 && !context_inIterDef () && !context_inIterEnd ())
2560 {
2561 }
2562 else
2563 {
2564 usymtab_quietExitScope (g_currentloc);
2565
2566 gc.showfunction = FALSE;
2567 gc.kind = CX_GLOBAL;
2568 gc.cont.glob = TRUE;
2569 gc.acct = gc.facct;
2570 gc.globs = globSet_new ();
2571 globSet_clear (gc.globs_used);
2572 gc.mods = sRefSet_new ();
2573
2574 sRef_exitFunctionScope ();
2575 }
2576}
2577
2578/*@observer@*/ uentryList
2579context_getParams (void)
2580{
2581 if (context_inFunctionLike ())
2582 {
2583 return (uentry_getParams (gc.cont.fcn));
2584 }
2585 else
2586 {
2587 llcontbug (message ("context_getParams: not in function: %q", context_unparse ()));
2588 return uentryList_undefined;
2589 }
2590}
2591
2592/*@observer@*/ globSet
2593context_getUsedGlobs (void)
2594{
2595 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2596 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2597
2598 return (gc.globs_used);
2599}
2600
2601cstring
2602context_moduleName ()
2603{
2604 return (fileloc_getBase (g_currentloc));
2605}
2606
2607/*@observer@*/ globSet
2608context_getGlobs (void)
2609{
2610 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2611 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2612
2613 return (gc.globs);
2614}
2615
2616void
2617context_addBoolAccess (void)
2618{
2619 cstring bname = context_getString (FLG_BOOLTYPE);
2620 typeIdSet boolt = typeIdSet_single (usymtab_getTypeId (bname));
2621
2622 addModuleAccess (cstring_copy (bname), boolt);
2623
2624 /* for sys/types (perhaps, this is bogus!) */
2625 addModuleAccess (cstring_makeLiteral ("types"), boolt);
2626}
2627
2628# if 0
2629bool
2630context_canAccessBool (void)
2631{
2632 return TRUE;
2633}
2634# endif
2635
2636/*
2637 static typeId boolType = typeId_invalid;
2638
2639 if (typeId_isInvalid (boolType))
2640 {
2641 boolType = usymtab_getTypeId (context_getBoolName ());
2642 }
2643
2644 if (typeId_isInvalid (boolType)) {
2645 return FALSE;
2646 } else {
2647 return (typeIdSet_member (gc.acct, boolType));
2648 }
2649}
2650*/
2651
2652/* evs 2000-07-25: old version - replaced */
2653
2654ctype
2655context_boolImplementationType () {
2656 /* For now, this is bogus! */
2657 return ctype_int;
2658}
2659
2660bool
2661context_canAccessBool (void)
2662{
2663 static typeId boolType = typeId_invalid;
2664
2665 if (typeId_isInvalid (boolType))
2666 {
2667 boolType = usymtab_getTypeId (context_getBoolName ());
2668 }
2669
2670 if (!typeId_isInvalid (boolType))
2671 {
2672 return context_hasAccess (boolType);
2673 }
2674 else
2675 {
2676 ;
2677 }
2678
2679 return FALSE;
2680}
2681
2682void
2683context_setMessageAnnote (/*@only@*/ cstring s)
2684{
2685 llassert (cstring_isUndefined (gc.msgAnnote));
2686 gc.msgAnnote = s;
2687}
2688
2689bool
2690context_hasMessageAnnote (void)
2691{
2692 return (cstring_isDefined (gc.msgAnnote));
2693}
2694
2695void
2696context_clearMessageAnnote (void)
2697{
2698 if (cstring_isDefined (gc.msgAnnote))
2699 {
2700 cstring_free (gc.msgAnnote);
2701 gc.msgAnnote = cstring_undefined;
2702 }
2703}
2704
2705/*@only@*/ cstring
2706context_getMessageAnnote (void)
2707{
2708 cstring st = gc.msgAnnote;
2709
2710 gc.msgAnnote = cstring_undefined;
2711 return st;
2712}
2713
2714void
2715context_setAliasAnnote (/*@observer@*/ sRef s, /*@observer@*/ sRef t)
2716{
2717 llassert (sRef_isInvalid (gc.aliasAnnote));
2718 llassert (!sRef_sameName (s, t));
2719 gc.aliasAnnote = s;
2720 gc.aliasAnnoteAls = t;
2721}
2722
2723bool
2724context_hasAliasAnnote (void)
2725{
2726 return (sRef_isValid (gc.aliasAnnote));
2727}
2728
2729void
2730context_clearAliasAnnote (void)
2731{
2732 gc.aliasAnnote = sRef_undefined;
2733}
2734
2735cstring
2736context_getAliasAnnote (void)
2737{
2738 sRef ret = gc.aliasAnnote;
2739 sRef als = gc.aliasAnnoteAls;
2740
2741 llassert (sRef_isValid (ret) && sRef_isValid (als));
2742
2743 gc.aliasAnnote = sRef_undefined;
2744 return (message ("%q aliases %q", sRef_unparse (als), sRef_unparse (ret)));
2745}
2746
2747void
2748context_recordFileModifies (sRefSet mods)
2749{
28bf4b0b 2750 gc.modrecs = sRefSetList_add (gc.modrecs, mods);
616915dd 2751}
2752
2753void
2754context_recordFileGlobals (globSet mods)
2755{
28bf4b0b 2756 DPRINTF (("Recording file globals: %s", globSet_unparse (mods)));
2757 /*@access globSet@*/ context_recordFileModifies (mods); /*@noaccess globSet@*/
616915dd 2758}
2759
2760void
2761context_setCommentMarkerChar (char c)
2762{
2763 llassert (c != '\0');
2764
2765 context_setValue (FLG_COMMENTCHAR, (int) c);
2766}
2767
2768char
2769context_getCommentMarkerChar (void)
2770{
2771 return ((char) context_getValue (FLG_COMMENTCHAR));
2772}
2773
2774static void
2775context_setValue (flagcode flag, int val)
2776{
2777 int index = flagcode_valueIndex (flag);
2778
2779 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2780
28bf4b0b 2781 switch (flag)
616915dd 2782 {
28bf4b0b 2783 case FLG_LINELEN:
2784 if (val <= 0)
616915dd 2785 {
28bf4b0b 2786
abb1cb43 2787 llerror_flagWarning (message ("Value for %s must be a positive "
2788 "number (given %d)",
2789 flagcode_unparse (flag), val));
616915dd 2790 return;
616915dd 2791 }
28bf4b0b 2792 if (flag == FLG_LINELEN && val < MINLINELEN)
2793 {
abb1cb43 2794 llerror_flagWarning (message ("Value for %s must be at least %d (given %d)",
2795 flagcode_unparse (flag),
2796 MINLINELEN, val));
28bf4b0b 2797 val = MINLINELEN;
2798 }
2799 break;
616915dd 2800
28bf4b0b 2801 case FLG_INCLUDENEST:
2802 case FLG_CONTROLNESTDEPTH:
2803 case FLG_STRINGLITERALLEN:
2804 case FLG_NUMSTRUCTFIELDS:
2805 case FLG_NUMENUMMEMBERS:
2806 case FLG_INDENTSPACES:
2807 if (val < 0)
2808 {
abb1cb43 2809 llerror_flagWarning (message ("Value for %s must be a non-negative "
a956d444 2810 "number (given %d)",
2811 flagcode_unparse (flag), val));
28bf4b0b 2812 return;
2813 }
616915dd 2814
28bf4b0b 2815 break;
2816 default:
2817 break;
2818 }
982cc10b 2819
2820 DPRINTF (("Set value [%s] %d = %d", flagcode_unparse (flag), index, val));
28bf4b0b 2821 gc.values[index] = val;
616915dd 2822}
2823
2824void
2825context_setValueAndFlag (flagcode flag, int val)
2826{
2827 gc.flags[flag] = TRUE;
2828 context_setValue (flag, val);
2829}
2830
2831int
2832context_getValue (flagcode flag)
2833{
2834 int index = flagcode_valueIndex (flag);
2835
2836 llassert (index >= 0 && index <= NUMVALUEFLAGS);
982cc10b 2837 DPRINTF (("Get value [%s] %d = %d", flagcode_unparse (flag), index, gc.values[index]));
616915dd 2838 return (gc.values[index]);
2839}
2840
2841int
2842context_getCounter (flagcode flag)
2843{
2844 int index = flagcode_valueIndex (flag);
2845
2846 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2847 return (gc.counters[index]);
2848}
2849
2850void
2851context_incCounter (flagcode flag)
2852{
2853 int index = flagcode_valueIndex (flag);
2854
2855 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2856 /* check limit */
2857 gc.counters[index]++;
2858}
2859
2860void
2861context_decCounter (flagcode flag)
2862{
2863 int index = flagcode_valueIndex (flag);
2864
2865 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2866 gc.counters[index]--;
2867}
2868
2869bool context_showFunction (void)
2870{
2871 return (gc.showfunction);
2872}
2873
2874void
2875context_setString (flagcode flag, cstring val)
2876{
2877 int index = flagcode_stringIndex (flag);
2878
2879 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2880
2881 if (flag == FLG_SYSTEMDIRS)
2882 {
2883 llassert (cstring_isDefined (val));
2884
2885 if (cstring_firstChar (val) == '\"')
2886 {
2887 cstring oval = val;
2888 cstring tval = cstring_copy (cstring_suffix (val, 1));
2889
2890 if (cstring_lastChar (tval) != '\"')
2891 {
2892 int n = cstring_length (tval) - 1;
2893
2894 while (isspace ((int) cstring_getChar (tval, n)))
2895 {
2896 n--;
2897 }
2898
2899 if (cstring_getChar (tval, n) != '\"')
2900 {
abb1cb43 2901 llerror_flagWarning (message ("Setting -systemdirs to string with unmatching quotes: %s", val));
616915dd 2902 }
2903 else
2904 {
2905 cstring otval = tval;
2906 tval = cstring_prefix (tval, n);
2907 cstring_free (otval);
2908 }
2909 }
2910
2911 val = cstring_copy (cstring_clip (tval, cstring_length (tval) - 1));
2912 DPRINTF (("val = %s", val));
2913 cstring_free (tval);
2914 cstring_free (oval);
2915 }
2916 }
2917
2918 if (flag == FLG_TMPDIR)
2919 {
2920 llassert (cstring_isDefined (val));
2921
2922 if (cstring_length (val) == 0)
2923 {
2924 cstring_free (val);
2925 val = message (".%s", cstring_makeLiteralTemp (CONNECTSTR));
2926 }
2927 else if (cstring_lastChar (val) != CONNECTCHAR)
2928 {
2929 val = cstring_appendChar (val, CONNECTCHAR);
2930 }
2931 else
2932 {
2933 ;
2934 }
2935 }
2936
2937 if (cstring_length (val) >= 1
ee229125 2938 && cstring_firstChar (val) == '\"')
616915dd 2939 {
abb1cb43 2940 llerror_flagWarning (message
2941 ("setting %s to string beginning with \". You probably "
2942 "don't meant to have the \"'s.",
2943 flagcode_unparse (flag)));
616915dd 2944 }
2945
2946 if (flag == FLG_BOOLTYPE)
2947 {
2948
2949 }
2950
2951 gc.strings[index] = val;
2952}
2953
2954static /*@exposed@*/ cstring
2955context_exposeString (flagcode flag)
2956{
2957 int index = flagcode_stringIndex (flag);
2958
2959 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2960 return (gc.strings[index]);
2961}
2962
2963cstring
2964context_getString (flagcode flag)
2965{
2966 return (context_exposeString (flag));
2967}
2968
2969void
2970context_resetErrors (void)
2971{
2972 gc.numerrors = 0;
2973}
2974
2975void context_initMod (void)
2976 /*@globals undef gc; @*/
2977{
2978 gc.kind = CX_GLOBAL;
b7e84605 2979
28bf4b0b 2980 gc.savekind = CX_ERROR;
b7e84605 2981 gc.savecont.glob = FALSE;
2982
616915dd 2983 gc.instandardlib = FALSE;
2984 gc.numerrors = 0;
2985 gc.neednl = FALSE;
2986 gc.linesprocessed = 0;
2987 gc.speclinesprocessed = 0;
2988 gc.insuppressregion = FALSE;
2989 gc.macroMissingParams = FALSE;
2990 gc.preprocessing = FALSE;
2991 gc.incommandline = FALSE;
2992 gc.mc = macrocache_create ();
2993 gc.nmods = 0;
2994 gc.maxmods = DEFAULTMAXMODS;
28bf4b0b 2995 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
2996
616915dd 2997 gc.library = FLG_ANSILIB;
2998
2999 gc.locstack = filelocStack_new ();
3000 gc.modrecs = sRefSetList_undefined;
3001 gc.anyExports = FALSE;
3002
3003 gc.ftab = fileTable_create ();
3004 gc.msgLog = messageLog_new ();
3005 gc.inimport = FALSE;
3006 gc.inDerivedFile = FALSE;
3007 gc.inheader = FALSE;
3008 gc.markers = flagMarkerList_new ();
3009 gc.cont.glob = TRUE;
3010 gc.showfunction = FALSE;
3011 gc.msgAnnote = cstring_undefined;
3012 gc.aliasAnnote = sRef_undefined;
3013 gc.aliasAnnoteAls = sRef_undefined;
3014 gc.boolType = ctype_bool;
3015 gc.mods = sRefSet_new ();
3016
3017 gc.saveloc = fileloc_undefined;
3018
3019 gc.inmacrocache = FALSE;
3020 gc.inclause = NOCLAUSE;
3021 gc.clauses = clauseStack_new ();
3022 gc.globs = globSet_new ();
3023 gc.nacct = typeIdSet_emptySet ();
3024 gc.acct = typeIdSet_emptySet ();
3025 gc.facct = typeIdSet_emptySet ();
3026 gc.savedFlags = FALSE;
3027 gc.pushloc = fileloc_undefined;
3028 gc.protectVars = FALSE;
3029 gc.justpopped = FALSE;
3030 gc.isNullGuarded = NO;
3031 gc.globs_used = globSet_undefined;
3032
3033 allFlagCodes (code)
3034 {
3035 gc.setGlobally[code] = FALSE;
3036 gc.setLocally[code] = FALSE;
982cc10b 3037 }
3038 end_allFlagCodes ;
3039
616915dd 3040 usymtab_initMod ();
3041
3042 context_resetAllFlags ();
982cc10b 3043
3120b462 3044 assertSet (gc.flags); /* Can't use global in defines */
3045 assertSet (gc.saveflags);
3046 assertSet (gc.values);
3047 assertSet (gc.strings);
982cc10b 3048
616915dd 3049 conext_resetAllCounters ();
3120b462 3050 assertSet (gc.counters);
3051
616915dd 3052 context_setMode (DEFAULT_MODE);
28bf4b0b 3053
3054 gc.stateTable = metaStateTable_create ();
3055 gc.annotTable = annotationTable_create ();
3056
d9a28762 3057 gc.inFunctionHeader = FALSE;
3058
28bf4b0b 3059 DPRINTF (("Annotations: \n%s",
3060 cstring_toCharsSafe (annotationTable_unparse (gc.annotTable))));
3061 DPRINTF (("State: \n%s",
3062 cstring_toCharsSafe (metaStateTable_unparse (gc.stateTable))));
3063
616915dd 3064}
3065
3066ctype
3067context_typeofZero (void)
3068{
3069 ctype ct = ctype_int;
3070
3071 if (context_getFlag (FLG_ZEROPTR))
3072 {
3073 ct = ctype_makeConj (ct, ctype_voidPointer);
3074 }
3075
3076 if (context_getFlag (FLG_ZEROBOOL)) {
3077 ct = ctype_makeConj (ct, ctype_bool);
3078 }
3079
3080 return ct;
3081}
3082
3083ctype
3084context_typeofOne (void)
3085{
3086 ctype ct = ctype_int;
3087
3088 /* 1 is on longer a bool (was before 2.4)
3089 if (!context_getFlag (FLG_ABSTRACTBOOL))
3090 {
3091 ct = ctype_makeConj (ct, ctype_bool);
3092 }
3093 */
3094
3095 return (ct);
3096}
3097
3098/*@only@*/ cstring
3099context_unparse (void)
3100{
3101 cstring s;
3102
3103 switch (gc.kind)
3104 {
3105 case CX_LCL:
3106 s = message ("LCL File: %q", fileloc_unparse (g_currentloc));
3107 break;
3108 case CX_LCLLIB:
3109 s = message ("LCL Lib File: %q", fileloc_unparse (g_currentloc));
3110 break;
3111 case CX_GLOBAL:
3112 s = message ("Global Context:%q", fileloc_unparse (g_currentloc));
3113 break;
3114 case CX_INNER:
b7e84605 3115 s = message ("Inner Context [%d] : %q",
3116 gc.cont.cdepth,
3117 fileloc_unparse (g_currentloc));
616915dd 3118 break;
3119 case CX_FUNCTION:
3120 s = message ("Function %q :%q \n\taccess %q\n\tmodifies %q",
3121 uentry_unparse (gc.cont.fcn),
3122 fileloc_unparse (g_currentloc),
3123 typeIdSet_unparse (gc.acct),
3124 sRefSet_unparse (gc.mods));
3125 break;
3126 case CX_MACROFCN:
3127 s = message ("Function Macro %q", uentry_unparse (gc.cont.fcn));
3128 break;
3129 case CX_UNKNOWNMACRO:
3130 s = message ("Forward Specified Macro %q", uentry_unparse (gc.cont.fcn));
3131 break;
3132 case CX_MACROCONST:
3133 s = message ("Constant Macro %q", uentry_unparse (gc.cont.fcn));
3134 break;
3135 case CX_ITERDEF:
3136 s = message ("Iter definition %q", uentry_unparse (gc.cont.fcn));
3137 break;
3138 case CX_ITEREND:
3139 s = message ("Iter end %q", uentry_unparse (gc.cont.fcn));
3140 break;
b7e84605 3141 case CX_FCNDECLARATION:
3142 s = message ("Function declaration %q", uentry_unparse (gc.cont.fcn));
3143 break;
616915dd 3144 default:
3145 s = message ("Un-unparseable context: %d", (int) gc.kind);
3146 break;
3147 }
3148
3149 s = message ("%q\naccess: %q", s, context_unparseAccess ());
3150 return (s);
3151}
3152
3153extern ctype
3154context_currentFunctionType (void)
3155{
3156 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
3157 {
3158 return (uentry_getType (gc.cont.fcn));
3159 }
3160 else if (gc.kind == CX_INNER)
3161 {
3162 llcontbuglit ("context_currentFunctionType: inner context");
3163 do { context_exitInnerPlain (); } while (gc.kind == CX_INNER);
3164 return (context_currentFunctionType ());
3165 }
3166 else
3167 {
3168 llcontbuglit ("context_currentFunctionType: not in function");
3169 return (ctype_undefined);
3170 }
3171}
3172
3173void
3174context_enterInnerContext (void)
3175{
b7e84605 3176 if (context_getFlag (FLG_GRAMMAR))
3177 {
3178 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3179 }
3180
616915dd 3181 if (gc.kind == CX_GLOBAL)
3182 {
3183 gc.kind = CX_INNER;
3184 gc.cont.cdepth = 1;
3185 }
3186 else if (gc.kind == CX_INNER)
3187 {
3188 gc.cont.cdepth++;
3189 }
3190 else
3191 {
3192 ;
3193 }
3194
616915dd 3195 usymtab_enterScope ();
3196 pushClause (NOCLAUSE);
3197}
3198
3199void
3200context_exitInnerPlain (void) /*@modifies gc;@*/
3201{
3202 context_exitInner (exprNode_undefined);
3203}
3204
3205void
3206context_exitInner (exprNode exp)
3207{
b7e84605 3208 if (context_getFlag (FLG_GRAMMAR))
3209 {
3210 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3211 }
3212
616915dd 3213 llassertprint (gc.inclause == NOCLAUSE || gc.inclause == CASECLAUSE,
3214 ("inclause = %s", clause_nameTaken (gc.inclause)));
3215
3216 clauseStack_removeFirst (gc.clauses, NOCLAUSE);
3217 gc.inclause = topClause (gc.clauses);
3218
3219 if (gc.kind == CX_INNER)
3220 {
3221 if (--gc.cont.cdepth == 0)
3222 {
3223 gc.kind = CX_GLOBAL;
3224 gc.cont.glob = TRUE;
3225 }
3226 }
3227 else
3228 {
3229 if (gc.kind == CX_GLOBAL)
3230 {
3231 llcontbuglit ("Attempt to exit global context");
3232 return;
3233 }
3234 }
3235
3236 usymtab_exitScope (exp);
3237}
3238
3239
3240void
3241context_enterStructInnerContext (void)
3242{
b7e84605 3243 if (context_getFlag (FLG_GRAMMAR))
3244 {
3245 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3246 }
3247
616915dd 3248 if (gc.kind == CX_GLOBAL)
3249 {
3250 gc.kind = CX_INNER;
3251 gc.cont.cdepth = 1;
3252 }
3253 else if (gc.kind == CX_INNER)
3254 {
3255 gc.cont.cdepth++;
3256 }
3257 else
3258 {
3259 ;
3260 }
3261
3262 usymtab_enterScope ();
b7e84605 3263
3264 if (context_getFlag (FLG_GRAMMAR))
3265 {
3266 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3267 }
616915dd 3268}
3269
3270void
3271context_exitStructInnerContext (void)
3272{
b7e84605 3273 if (context_getFlag (FLG_GRAMMAR))
3274 {
3275 lldiagmsg (message ("Exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3276 }
3277
616915dd 3278 if (gc.kind == CX_INNER)
3279 {
b7e84605 3280 if (gc.cont.cdepth <= 0)
616915dd 3281 {
b7e84605 3282 llcontbuglit ("Attempt to exit inner context with no depth");
616915dd 3283 gc.kind = CX_GLOBAL;
3284 gc.cont.glob = TRUE;
b7e84605 3285 gc.cont.cdepth = 0;
616915dd 3286 }
b7e84605 3287 else {
3288 gc.cont.cdepth--;
3289
3290 if (gc.cont.cdepth == 0)
3291 {
3292 gc.kind = CX_GLOBAL;
3293 gc.cont.glob = TRUE;
3294 }
3295 }
616915dd 3296 }
3297 else
3298 {
3299 if (gc.kind == CX_GLOBAL)
3300 {
3301 llcontbuglit ("Attempt to exit global context");
3302 return;
3303 }
3304 }
3305
3306 usymtab_exitScope (exprNode_undefined);
b7e84605 3307
3308 if (context_getFlag (FLG_GRAMMAR))
3309 {
3310 lldiagmsg (message ("After exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3311 }
616915dd 3312}
3313
3314void
3315context_exitInnerSafe (void)
3316{
b7e84605 3317 if (context_getFlag (FLG_GRAMMAR))
3318 {
3319 lldiagmsg (message ("Exit inner safe: %q", context_unparse ()));
3320 }
3321
616915dd 3322 if (gc.kind == CX_INNER)
3323 {
b7e84605 3324 if (--gc.cont.cdepth <= 0)
616915dd 3325 {
b7e84605 3326 gc.cont.cdepth = 0;
616915dd 3327 }
3328 }
3329 else if (gc.kind == CX_GLOBAL)
3330 {
3331 llcontbuglit ("Attempt to exit global context");
3332 return;
3333 }
3334 else
3335 {
3336 if (usymtab_inDeepScope ())
3337 {
3338 usymtab_exitScope (exprNode_undefined);
3339 }
3340 }
3341}
3342
3343static
3344void setModuleAccess (void)
3345{
3346 gc.facct = typeIdSet_emptySet ();
3347
3348 if (fileId_isValid (currentFile ()))
3349 {
3350 cstring baseName = fileloc_getBase (g_currentloc);
3351
3352 if (context_getFlag (FLG_ACCESSFILE))
3353 {
3354 if (usymtab_existsType (baseName))
3355 {
3356 gc.facct = typeIdSet_insert (gc.facct,
3357 usymtab_getTypeId (baseName));
3358 }
3359 else
3360 {
3361 ;
3362 }
3363 }
3364
3365 if (context_getFlag (FLG_ACCESSMODULE))
3366 {
3367 int i;
3368 bool hasaccess = FALSE;
3369
3370 for (i = 0; i < gc.nmods; i++)
3371 {
3372 if (cstring_equal (baseName, gc.moduleaccess[i].file))
3373 {
3374 gc.facct = typeIdSet_union (gc.facct, gc.moduleaccess[i].daccess);
3375
3376 hasaccess = TRUE;
3377 break;
3378 }
3379 }
3380 }
3381
3382 gc.acct = gc.facct;
3383 gc.inheader = fileId_isHeader (currentFile ());
3384 }
3385 else
3386 {
3387 llcontbuglit ("Current file not defined\n");
3388 gc.facct = typeIdSet_emptySet ();
3389 gc.acct = gc.facct;
3390 gc.inheader = FALSE;
3391 }
3392
3393 /* 17 Jan 1995: forgot to clear nacct */
3394
3395 gc.nacct = typeIdSet_emptySet ();
3396}
3397
3398static void
3399context_enterFileAux (void)
3400{
3401 setModuleAccess ();
3402}
3403
3404void
3405context_enterFile (void)
3406{
3407 context_enterFileAux ();
3408 usymtab_enterFile ();
3409}
3410
3411void
3412context_enterMacroFile (void)
3413{
3414 context_enterFileAux ();
3415}
3416
3417bool
3418context_inFunction (void)
3419{
3420 kcontext ck = gc.kind;
3421
3422 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN) || (ck == CX_INNER));
3423}
3424
3425bool
3426context_inFunctionLike (void)
3427{
3428 return (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
28bf4b0b 3429 || gc.kind == CX_FCNDECLARATION
616915dd 3430 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
3431}
3432
3433bool
3434context_inRealFunction (void)
3435{
3436 kcontext ck = gc.kind;
3437
3438 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN));
3439}
3440
3441void
3442context_processAllMacros (void)
3443{
3444 usymtab_enterFile ();
3445
3446 gc.inmacrocache = TRUE;
3447 macrocache_processUndefinedElements (gc.mc);
3448 cleanupMessages ();
3449 usymtab_exitFile ();
3450
3451 gc.inmacrocache = FALSE;
3452 macrocache_finalize ();
3453}
3454
3455/*
3456** this happens once at the end of each C file
3457**
3458** check each Macro that was defined in current file.c or current file.h
3459**
3460*/
3461
3462static void
3463context_processMacros (void)
3464{
3465 if (fileId_isValid (currentFile ()))
3466 {
3467 fileloc lastfl;
4dd72714 3468 cstring cbase = fileLib_removePathFree (fileLib_removeAnyExtension (fileTable_fileName (currentFile ())));
616915dd 3469
3470 gc.inmacrocache = TRUE;
3471
3472 DPRINTF (("Processing macros: %s", cbase));
3473 lastfl = macrocache_processFileElements (gc.mc, cbase);
3474 DPRINTF (("Processing macros: %s", fileloc_unparse (lastfl)));
3475
3476 cstring_free (cbase);
3477
3478 if (fileloc_isDefined (lastfl))
3479 {
3480 g_currentloc = fileloc_update (g_currentloc, lastfl);
3481 cleanupMessages ();
3482 }
3483
3484 gc.inmacrocache = FALSE;
3485 }
3486}
3487
3488bool
3489context_processingMacros (void)
3490{
3491 return (gc.inmacrocache);
3492}
3493
3494void
28bf4b0b 3495context_exitCFile (void)
616915dd 3496{
3497 if (gc.kind != CX_GLOBAL)
3498 {
3499 llfatalerrorLoc
3500 (cstring_makeLiteral ("File ended outside global scope"));
3501 }
3502
3503 if (gc.insuppressregion)
3504 {
3505 /* gack...don't reverse the order of these lines! ;-> */
3506 gc.insuppressregion = FALSE;
3507 llerrorlit (FLG_SYNTAX,
3508 "File ended in ignore errors region, "
3509 "possible missing /*@end*/");
3510 }
3511
3512 /* fix up parse errors */
3513
3514 while (!usymtab_inFileScope ())
3515 {
3516 usymtab_quietExitScope (g_currentloc);
3517 }
3518
3519 /*
3520 ** Clear the file-specific modifies information.
3521 */
3522
3523 sRefSetList_elements (gc.modrecs, mods)
3524 {
3525 sRefSet_clearStatics (mods);
28bf4b0b 3526 } end_sRefSetList_elements ;
616915dd 3527
3528 sRefSetList_clear (gc.modrecs);
28bf4b0b 3529
616915dd 3530 context_processMacros ();
3531 cleanupMessages ();
28bf4b0b 3532
616915dd 3533 usymtab_exitFile ();
28bf4b0b 3534
616915dd 3535 gc.inDerivedFile = FALSE;
3536 filelocStack_clear (gc.locstack);
28bf4b0b 3537
616915dd 3538 gc.nacct = typeIdSet_emptySet (); /* empty noaccess */
28bf4b0b 3539
616915dd 3540 gc.cont.glob = TRUE;
3541
3542 if (gc.savedFlags)
3543 {
3544 context_restoreFlagSettings ();
3545 gc.savedFlags = FALSE;
3546 }
28bf4b0b 3547
3548 /*
3549 DPRINTF (("After exiting file: "));
3550 usymtab_printAll ();
3551 */
616915dd 3552}
3553
3554void
3555context_exitMacroCache (void)
3556{
3557 if (gc.kind != CX_GLOBAL)
3558 {
28bf4b0b 3559 if (context_inMacro ())
3560 /* this is okay, file could end without newline in macro */
616915dd 3561 {
28bf4b0b 3562 DPRINTF (("Still in macro: %s",
3563 context_unparse ()));
616915dd 3564 context_exitFunction ();
3565 }
3566 else
3567 {
3568 llcontbug (message ("context_exitMacroCache: outside global scope: %q",
3569 context_unparse ()));
3570 gc.kind = CX_GLOBAL;
3571 }
3572 }
3573
3574 /*
3575 ** no longer valid here
3576 ** if (gc.insuppressregion)
3577 ** {
3578 ** gc.insuppressregion = FALSE;
3579 ** llerror ("File ended in ignore errors region, possible missing @");
3580 ** }
3581 */
3582
3583 gc.cont.glob = TRUE;
3584}
3585
3586void
3587context_saveLocation (void)
3588{
3589 /* was llassert (fileloc_isUndefined (gc.saveloc)) */
6970c11b 3590 fileloc_free (gc.saveloc);
616915dd 3591 gc.saveloc = fileloc_copy (g_currentloc);
6970c11b 3592}
616915dd 3593
3594fileloc
3595context_getSaveLocation (void)
3596{
3597 fileloc fl = gc.saveloc;
6970c11b 3598 gc.saveloc = fileloc_undefined;
616915dd 3599 return fl;
3600}
3601
3602/*@observer@*/ cstring
3603context_inFunctionName (void)
3604{
3605 if (gc.kind == CX_FUNCTION
3606 || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO
3607 || gc.kind == CX_MACROCONST
3608 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND)
3609 {
3610 return (uentry_rawName (gc.cont.fcn));
3611 }
3612 else
3613 {
3614 llcontbuglit ("context_inFunctionName: not in function");
3615 return (cstring_undefined);
3616 }
3617}
3618
3619void
3620context_userSetFlag (flagcode f, bool b)
3621{
28bf4b0b 3622 DPRINTF (("set flag: %s", flagcode_unparse (f)));
616915dd 3623
3624 if (f == FLG_NEVERINCLUDE && b)
3625 {
3626 if (gc.flags[FLG_EXPORTHEADER])
3627 {
abb1cb43 3628 llerror_flagWarning (cstring_makeLiteral
3629 ("setting +neverinclude after +exportheader. "
3630 "Turning off exportheader, since headers are not checked "
3631 "when +neverinclude is used."));
616915dd 3632
3633 gc.flags[FLG_EXPORTHEADER] = FALSE;
3634 }
3635 }
3636 else
3637 {
3638 if (f == FLG_EXPORTHEADER && b)
3639 {
3640 if (gc.flags[FLG_NEVERINCLUDE])
3641 {
abb1cb43 3642 llerror_flagWarning (cstring_makeLiteral
3643 ("setting +exportheader after +neverinclude. "
3644 "Not setting exportheader, since headers are not checked "
3645 "when +neverinclude is used."));
616915dd 3646 gc.flags[FLG_EXPORTHEADER] = FALSE;
3647 return;
3648 }
3649 }
3650 }
3651
3652 if (context_getFlag (FLG_WARNFLAGS) && f != FLG_NOF && f != FLG_OPTF)
3653 {
3654 bool lastsetting = context_getFlag (f);
3655
3656 if (bool_equal (lastsetting, b)
3657 && !flagcode_isSpecialFlag (f)
3658 && !flagcode_isIdemFlag (f)
3659 && !flagcode_hasArgument (f))
3660 {
abb1cb43 3661 llerror_flagWarning (message ("setting %s%s redundant with current value",
3662 cstring_makeLiteralTemp (b ? "+" : "-"),
3663 flagcode_unparse (f)));
28bf4b0b 3664 }
3665 }
3666
3667 if (flagcode_isWarnUseFlag (f) && b)
3668 {
3669 if (!context_getFlag (FLG_WARNUSE))
3670 {
abb1cb43 3671 llerror_flagWarning (message ("flag +%s is canceled by -warnuse",
3672 flagcode_unparse (f)));
28bf4b0b 3673
616915dd 3674 }
3675 }
3676
28bf4b0b 3677
616915dd 3678 if (flagcode_isLibraryFlag (f))
3679 {
3680 if (gc.library != FLG_ANSILIB
3681 && gc.library != f)
3682 {
abb1cb43 3683 llerror_flagWarning (message ("selecting library %s after library %s was "
3684 "selected (only one library may be used)",
3685 flagcode_unparse (f),
3686 flagcode_unparse (gc.library)));
616915dd 3687 }
3688
3689 if (f == FLG_UNIXLIB)
3690 {
3691 if (context_getFlag (FLG_WARNUNIXLIB))
3692 {
abb1cb43 3693 llerror_flagWarning (cstring_makeLiteral
3694 ("selecting unix library. Unix library is "
3695 "ad hoc addition to POSIX library. Recommend "
3696 "use +posixlib to select POSIX library instead. "
3697 "Use -warnunixlib to suppress this message."));
616915dd 3698 }
3699 }
3700
3701 gc.library = f;
3702 }
abb1cb43 3703
3704 if (flagcode_isNameChecksFlag (f) && b && !context_maybeSet (FLG_NAMECHECKS))
3705 {
3706 llerror_flagWarning (message
3707 ("setting +%s will not produce warnings with -namechecks. Must set +namechecks also.",
3708 flagcode_unparse (f)));
3709 }
3710
616915dd 3711 gc.setGlobally[f] = TRUE;
3712 context_setFlag (f, b);
3713}
3714
3715void
3716context_fileSetFlag (flagcode f, ynm set)
3717{
3718 if (!gc.savedFlags)
3719 {
3720 context_saveFlagSettings ();
3721 }
3722
3723 if (ynm_isOff (set))
3724 {
3725 context_setFlagAux (f, FALSE, TRUE, FALSE);
3726 }
3727 else if (ynm_isOn (set))
3728 {
3729 context_setFlagAux (f, TRUE, TRUE, FALSE);
3730 gc.setLocally[f] = TRUE;
3731 }
3732 else
3733 {
3734 context_restoreFlag (f);
3735 }
3736}
3737
3738static void
3739context_restoreFlag (flagcode f)
3740{
3741
3742 if (!gc.savedFlags)
3743 {
3744 voptgenerror
3745 (FLG_SYNTAX,
3746 message ("Attempt to restore flag %s when no file scope flags "
3747 "have been set.",
3748 flagcode_unparse (f)),
3749 g_currentloc);
3750 }
3751 else
3752 {
3753 context_addFlagMarker (f, MAYBE);
3754 context_setFlagAux (f, gc.saveflags[f], FALSE, TRUE);
3755 }
3756
3757 }
3758
28bf4b0b 3759static void
616915dd 3760context_setFlag (flagcode f, bool b)
3761{
3762 context_setFlagAux (f, b, FALSE, FALSE);
3763}
3764
3765void
3766context_setFlagTemp (flagcode f, bool b)
3767{
3768 DPRINTF (("Set flag temp: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3769 gc.flags[f] = b;
3770}
3771
3772/*@notfunction@*/
3773# define DOSET(ff,b) \
3774 do { if (inFile) { gc.setLocally[ff] = TRUE; \
3775 context_addFlagMarker (ff, ynm_fromBool (b)); } \
28bf4b0b 3776 DPRINTF (("set flag: %s / %s", flagcode_unparse (ff), bool_unparse (b))); \
616915dd 3777 gc.flags[ff] = b; } while (FALSE)
3778
3779static void
3e3ec469 3780context_setFlagAux (flagcode f, bool b, bool inFile,
3781 /*@unused@*/ bool isRestore)
616915dd 3782{
3e3ec469 3783 DPRINTF (("Set flag: %s / %s", flagcode_unparse (f), bool_unparse (b)));
616915dd 3784
3785 if (f == FLG_USESTDERR)
3786 {
3787 if (b) {
3788 g_msgstream = stderr;
3789 } else {
3790 g_msgstream = stdout;
3791 }
3792 }
3793
28bf4b0b 3794 /*
3795 ** Removed test for special flags.
3796 */
616915dd 3797
28bf4b0b 3798 if (flagcode_isIdemFlag (f))
3799 {
3800 DOSET (f, TRUE);
3801 }
3802 else
3803 {
3804 DOSET (f, b);
3805 }
616915dd 3806
28bf4b0b 3807 if (f >= FLG_ITS4MOSTRISKY && f <= FLG_ITS4LOWRISK)
3808 {
3809 if (b) /* Turing higher level on, turns on all lower levels */
3810 {
3811 switch (f)
616915dd 3812 {
28bf4b0b 3813 case FLG_ITS4MOSTRISKY:
3814 DOSET (FLG_ITS4VERYRISKY, b);
3815 /*@fallthrough@*/
3816 case FLG_ITS4VERYRISKY:
3817 DOSET (FLG_ITS4RISKY, b);
3818 /*@fallthrough@*/
3819 case FLG_ITS4RISKY:
3820 DOSET (FLG_ITS4MODERATERISK, b);
3821 /*@fallthrough@*/
3822 case FLG_ITS4MODERATERISK:
3823 DOSET (FLG_ITS4LOWRISK, b);
3824 /*@fallthrough@*/
3825 case FLG_ITS4LOWRISK:
3826 break;
3827 BADDEFAULT;
616915dd 3828 }
28bf4b0b 3829 }
3830 else /* Turning level off, turns off all higher levels */
3831 {
3832 switch (f)
616915dd 3833 {
28bf4b0b 3834 case FLG_ITS4LOWRISK:
3835 DOSET (FLG_ITS4MODERATERISK, b);
3836 /*@fallthrough@*/
3837 case FLG_ITS4MODERATERISK:
3838 DOSET (FLG_ITS4RISKY, b);
3839 /*@fallthrough@*/
3840 case FLG_ITS4RISKY:
3841 DOSET (FLG_ITS4VERYRISKY, b);
3842 /*@fallthrough@*/
3843 case FLG_ITS4VERYRISKY:
3844 DOSET (FLG_ITS4MOSTRISKY, b);
3845 /*@fallthrough@*/
3846 case FLG_ITS4MOSTRISKY:
3847 break;
3848 BADDEFAULT;
616915dd 3849 }
616915dd 3850 }
3851 }
28bf4b0b 3852
3853 switch (f)
3854 {
3855 case FLG_ALLEMPTY:
3856 DOSET (FLG_ALLEMPTY, b);
3857 DOSET (FLG_IFEMPTY, b);
3858 DOSET (FLG_WHILEEMPTY, b);
3859 DOSET (FLG_FOREMPTY, b);
3860 break;
3861 case FLG_PREDBOOL:
3862 DOSET (FLG_PREDBOOL, b);
3863 DOSET (FLG_PREDBOOLINT, b);
3864 DOSET (FLG_PREDBOOLPTR, b);
3865 DOSET (FLG_PREDBOOLOTHERS, b);
3866 break;
3867 case FLG_GLOBALIAS:
3868 DOSET (FLG_CHECKSTRICTGLOBALIAS, b);
3869 DOSET (FLG_CHECKEDGLOBALIAS, b);
3870 DOSET (FLG_CHECKMODGLOBALIAS, b);
3871 DOSET (FLG_UNCHECKEDGLOBALIAS, b);
3872 break;
3873 case FLG_ALLBLOCK:
3874 DOSET (FLG_ALLBLOCK, b);
3875 DOSET (FLG_IFBLOCK, b);
3876 DOSET (FLG_WHILEBLOCK, b);
3877 DOSET (FLG_FORBLOCK, b);
3878 break;
3879 case FLG_GRAMMAR:
3880 if (b)
616915dd 3881 {
28bf4b0b 3882 yydebug = 1;
3883 mtdebug = 1;
616915dd 3884 }
3885 else
3886 {
28bf4b0b 3887 yydebug = 0;
3888 mtdebug = 0;
3889 }
3890
3891 DOSET (FLG_GRAMMAR, b);
3892 break;
3893 case FLG_CODEIMPONLY:
3894 DOSET (FLG_CODEIMPONLY, b);
3895 DOSET (FLG_GLOBIMPONLY, b);
3896 DOSET (FLG_RETIMPONLY, b);
3897 DOSET (FLG_STRUCTIMPONLY, b);
3898 break;
3899 case FLG_SPECALLIMPONLY:
3900 DOSET (FLG_SPECALLIMPONLY, b);
3901 DOSET (FLG_SPECGLOBIMPONLY, b);
3902 DOSET (FLG_SPECRETIMPONLY, b);
3903 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3904 break;
3905 case FLG_ALLIMPONLY:
3906 DOSET (FLG_ALLIMPONLY, b);
3907 DOSET (FLG_GLOBIMPONLY, b);
3908 DOSET (FLG_RETIMPONLY, b);
3909 DOSET (FLG_STRUCTIMPONLY, b);
3910 DOSET (FLG_SPECGLOBIMPONLY, b);
3911 DOSET (FLG_SPECRETIMPONLY, b);
3912 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3913 break;
27c9e640 3914 case FLG_ANSI89LIMITS:
3915 DOSET (FLG_ANSI89LIMITS, b);
28bf4b0b 3916 DOSET (FLG_CONTROLNESTDEPTH, b);
3917 DOSET (FLG_STRINGLITERALLEN, b);
3918 DOSET (FLG_INCLUDENEST, b);
3919 DOSET (FLG_NUMSTRUCTFIELDS, b);
3920 DOSET (FLG_NUMENUMMEMBERS, b);
3921
3922 if (b)
3923 {
27c9e640 3924 context_setValue (FLG_CONTROLNESTDEPTH, ANSI89_CONTROLNESTDEPTH);
3925 context_setValue (FLG_STRINGLITERALLEN, ANSI89_STRINGLITERALLEN);
3926 context_setValue (FLG_INCLUDENEST, ANSI89_INCLUDENEST);
3927 context_setValue (FLG_NUMSTRUCTFIELDS, ANSI89_NUMSTRUCTFIELDS);
3928 context_setValue (FLG_NUMENUMMEMBERS, ANSI89_NUMENUMMEMBERS);
3929 context_setValue (FLG_EXTERNALNAMELEN, ANSI89_EXTERNALNAMELEN);
3930 context_setValue (FLG_INTERNALNAMELEN, ANSI89_INTERNALNAMELEN);
3931 }
3932 break;
3933 case FLG_ISO99LIMITS:
3934 DOSET (FLG_ISO99LIMITS, b);
3935 DOSET (FLG_CONTROLNESTDEPTH, b);
3936 DOSET (FLG_STRINGLITERALLEN, b);
3937 DOSET (FLG_INCLUDENEST, b);
3938 DOSET (FLG_NUMSTRUCTFIELDS, b);
3939 DOSET (FLG_NUMENUMMEMBERS, b);
3940
3941 if (b)
3942 {
3943 context_setValue (FLG_CONTROLNESTDEPTH, ISO99_CONTROLNESTDEPTH);
3944 context_setValue (FLG_STRINGLITERALLEN, ISO99_STRINGLITERALLEN);
3945 context_setValue (FLG_INCLUDENEST, ISO99_INCLUDENEST);
3946 context_setValue (FLG_NUMSTRUCTFIELDS, ISO99_NUMSTRUCTFIELDS);
3947 context_setValue (FLG_NUMENUMMEMBERS, ISO99_NUMENUMMEMBERS);
3948 context_setValue (FLG_EXTERNALNAMELEN, ISO99_EXTERNALNAMELEN);
3949 context_setValue (FLG_INTERNALNAMELEN, ISO99_INTERNALNAMELEN);
28bf4b0b 3950 }
3951 break;
3952 case FLG_EXTERNALNAMELEN:
3953 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3954 DOSET (FLG_EXTERNALNAMELEN, TRUE);
3955 break;
3956 case FLG_INTERNALNAMELEN:
3957 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3958 DOSET (FLG_INTERNALNAMELEN, TRUE);
3959 break;
3960 case FLG_EXTERNALNAMECASEINSENSITIVE:
3961 DOSET (FLG_EXTERNALNAMECASEINSENSITIVE, b);
3962
3963 if (b && !gc.flags[FLG_DISTINCTEXTERNALNAMES])
3964 {
3965 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3966 context_setValue (FLG_EXTERNALNAMELEN, 0);
3967 }
3968 break;
3969 case FLG_INTERNALNAMECASEINSENSITIVE:
3970 DOSET (FLG_INTERNALNAMECASEINSENSITIVE, b);
3971
3972 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3973 {
3974 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3975 context_setValue (FLG_INTERNALNAMELEN, 0);
3976 }
3977 break;
3978 case FLG_INTERNALNAMELOOKALIKE:
3979 DOSET (FLG_INTERNALNAMELOOKALIKE, b);
3980
3981 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3982 {
3983 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3984 context_setValue (FLG_INTERNALNAMELEN, 0);
616915dd 3985 }
28bf4b0b 3986 break;
3987 case FLG_MODUNSPEC:
3988 DOSET (FLG_MODNOMODS, b);
3989 DOSET (FLG_MODGLOBSUNSPEC, b);
3990 DOSET (FLG_MODSTRICTGLOBSUNSPEC, b);
3991 break;
3992 case FLG_EXPORTANY:
3993 DOSET (FLG_EXPORTVAR, b);
3994 DOSET (FLG_EXPORTFCN, b);
3995 DOSET (FLG_EXPORTTYPE, b);
3996 DOSET (FLG_EXPORTMACRO, b);
3997 DOSET (FLG_EXPORTCONST, b);
3998 gc.anyExports = TRUE;
3999 break;
4000 case FLG_REPEXPOSE:
4001 DOSET (FLG_RETEXPOSE, b);
4002 DOSET (FLG_ASSIGNEXPOSE, b);
4003 DOSET (FLG_CASTEXPOSE, b);
4004 break;
4005 case FLG_RETVAL:
4006 DOSET (FLG_RETVALBOOL, b);
4007 DOSET (FLG_RETVALINT, b);
4008 DOSET (FLG_RETVALOTHER, b);
4009 break;
4010 case FLG_PARTIAL:
4011 if (b)
4012 {
4013 DOSET (FLG_EXPORTLOCAL, FALSE);
4014 DOSET (FLG_DECLUNDEF, FALSE);
4015 DOSET (FLG_SPECUNDEF, FALSE);
4016 DOSET (FLG_TOPUNUSED, FALSE);
4017 }
4018 break;
4019 case FLG_DEEPBREAK:
4020 DOSET (FLG_LOOPLOOPBREAK, b);
4021 DOSET (FLG_LOOPSWITCHBREAK, b);
4022 DOSET (FLG_SWITCHLOOPBREAK, b);
4023 DOSET (FLG_SWITCHSWITCHBREAK, b);
4024 DOSET (FLG_LOOPLOOPCONTINUE, b);
4025 DOSET (FLG_DEEPBREAK, b);
4026 break;
3e3ec469 4027 case FLG_LOOPEXEC:
4028 DOSET (FLG_FORLOOPEXEC, b);
4029 DOSET (FLG_WHILELOOPEXEC, b);
4030 DOSET (FLG_ITERLOOPEXEC, b);
4031 break;
28bf4b0b 4032 case FLG_ACCESSALL:
4033 DOSET (FLG_ACCESSMODULE, b);
4034 DOSET (FLG_ACCESSFILE, b);
4035 DOSET (FLG_ACCESSCZECH, b);
4036 break;
4037 case FLG_ALLMACROS:
4038 DOSET (FLG_ALLMACROS, b);
4039 DOSET (FLG_FCNMACROS, b);
4040 DOSET (FLG_CONSTMACROS, b);
4041 break;
bb7c2085 4042 case FLG_BOUNDS:
4043 DOSET (FLG_BOUNDSREAD, b);
4044 DOSET (FLG_BOUNDSWRITE, b);
4045 break;
28bf4b0b 4046 case FLG_CZECH:
4047 if (b) { DOSET (FLG_ACCESSCZECH, b); }
4048 DOSET (FLG_CZECHFUNCTIONS, b);
4049 DOSET (FLG_CZECHVARS, b);
4050 DOSET (FLG_CZECHCONSTANTS, b);
4051 DOSET (FLG_CZECHTYPES, b);
4052 break;
4053 case FLG_SLOVAK:
4054 if (b) { DOSET (FLG_ACCESSSLOVAK, b); }
4055 DOSET (FLG_SLOVAKFUNCTIONS, b);
4056 DOSET (FLG_SLOVAKVARS, b);
4057 DOSET (FLG_SLOVAKCONSTANTS, b);
4058 DOSET (FLG_SLOVAKTYPES, b);
4059 break;
4060 case FLG_CZECHOSLOVAK:
4061 if (b) { DOSET (FLG_ACCESSCZECHOSLOVAK, b); }
4062 DOSET (FLG_CZECHOSLOVAKFUNCTIONS, b);
4063 DOSET (FLG_CZECHOSLOVAKVARS, b);
4064 DOSET (FLG_CZECHOSLOVAKCONSTANTS, b);
4065 DOSET (FLG_CZECHOSLOVAKTYPES, b);
4066 break;
4067 case FLG_NULL:
4068 DOSET (FLG_NULLSTATE, b);
4069 DOSET (FLG_NULLDEREF, b);
4070 DOSET (FLG_NULLASSIGN, b);
4071 DOSET (FLG_NULLPASS, b);
4072 DOSET (FLG_NULLRET, b);
4073 break;
2e127cb8 4074 case FLG_MUSTFREE:
4075 DOSET (FLG_MUSTFREEONLY, b);
4076 DOSET (FLG_MUSTFREEFRESH, b);
4077 break;
28bf4b0b 4078 case FLG_MEMCHECKS:
4079 DOSET (FLG_NULLSTATE, b);
4080 DOSET (FLG_NULLDEREF, b);
4081 DOSET (FLG_NULLASSIGN, b);
4082 DOSET (FLG_NULLPASS, b);
4083 DOSET (FLG_NULLRET, b);
4084 DOSET (FLG_COMPDEF, b);
4085 DOSET (FLG_COMPMEMPASS, b);
4086 DOSET (FLG_UNIONDEF, b);
4087 DOSET (FLG_MEMTRANS, b);
4088 DOSET (FLG_USERELEASED, b);
4089 DOSET (FLG_ALIASUNIQUE, b);
4090 DOSET (FLG_MAYALIASUNIQUE, b);
2e127cb8 4091 DOSET (FLG_MUSTFREEONLY, b);
4092 DOSET (FLG_MUSTFREEFRESH, b);
28bf4b0b 4093 DOSET (FLG_MUSTDEFINE, b);
4094 DOSET (FLG_GLOBSTATE, b);
4095 DOSET (FLG_COMPDESTROY, b);
4096 DOSET (FLG_MUSTNOTALIAS, b);
4097 DOSET (FLG_MEMIMPLICIT, b);
4098 DOSET (FLG_BRANCHSTATE, b);
4099 /*@fallthrough@*/ /* also sets memtrans flags */
4100 case FLG_MEMTRANS:
4101 DOSET (FLG_MEMTRANS, b);
4102 DOSET (FLG_EXPOSETRANS, b);
4103 DOSET (FLG_OBSERVERTRANS, b);
4104 DOSET (FLG_DEPENDENTTRANS, b);
4105 DOSET (FLG_NEWREFTRANS, b);
4106 DOSET (FLG_ONLYTRANS, b);
4107 DOSET (FLG_OWNEDTRANS, b);
4108 DOSET (FLG_FRESHTRANS, b);
4109 DOSET (FLG_SHAREDTRANS, b);
4110 DOSET (FLG_TEMPTRANS, b);
4111 DOSET (FLG_KEPTTRANS, b);
4112 DOSET (FLG_REFCOUNTTRANS, b);
4113 DOSET (FLG_STATICTRANS, b);
4114 DOSET (FLG_UNKNOWNTRANS, b);
4115 DOSET (FLG_KEEPTRANS, b);
4116 DOSET (FLG_IMMEDIATETRANS, b);
4117 break;
4118
4119 default:
4120 break;
4121 }
4122
4123 if (b && !gc.anyExports
4124 && (f == FLG_EXPORTVAR || f == FLG_EXPORTFCN
4125 || f == FLG_EXPORTTYPE || f == FLG_EXPORTMACRO
4126 || f == FLG_EXPORTCONST
4127 || f == FLG_EXPORTANY))
4128 {
4129 gc.anyExports = TRUE;
616915dd 4130 }
4131}
4132
4133bool
4134context_maybeSet (flagcode d)
4135{
4136 return (gc.flags[d] || gc.setLocally[d]);
4137}
4138
4139bool
4140context_getFlag (flagcode d)
4141{
4142 return (gc.flags[d]);
4143}
4144
28bf4b0b 4145bool
4146context_flagOn (flagcode f, fileloc loc)
4147{
4148 return (!context_suppressFlagMsg (f, loc));
4149}
4150
616915dd 4151static void context_saveFlagSettings (void)
4152{
4153 gc.savedFlags = TRUE;
4154 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4155 memcpy (gc.saveflags, gc.flags, sizeof (gc.flags));
4156}
4157
4158static void context_restoreFlagSettings (void)
4159{
4160 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4161 memcpy (gc.flags, gc.saveflags, sizeof (gc.flags));
4162 gc.savedFlags = FALSE;
4163}
4164
4165void context_setFilename (fileId fid, int lineno)
4166 /*@globals fileloc g_currentloc;@*/
4167 /*@modifies g_currentloc@*/
4168{
4169 if (fileId_baseEqual (currentFile (), fid))
4170 {
4171 setLine (lineno);
4172 return;
4173 }
4174 else
4175 {
4176 fileloc_setColumn (g_currentloc, 0);
4177
4178 if (fileloc_isSpecialFile (g_currentloc))
4179 {
4180 gc.inDerivedFile = TRUE;
4181 }
4182
4183 if (filelocStack_popPushFile (gc.locstack, g_currentloc))
4184 {
4185 int maxdepth = context_getValue (FLG_INCLUDENEST);
4186
4187 if (filelocStack_size (gc.locstack) > maxdepth)
4188 {
4189 int depth = filelocStack_includeDepth (gc.locstack);
4190
4191 if (depth > maxdepth)
4192 {
4193 if (optgenerror
4194 (FLG_INCLUDENEST,
4195 message ("Maximum include nesting depth "
4196 "(%d, current depth %d) exceeded",
4197 maxdepth,
4198 depth),
4199 filelocStack_nextTop (gc.locstack)))
4200 {
4201 filelocStack_printIncludes (gc.locstack);
4202 }
4203 }
4204 }
4205 }
4206
4207 g_currentloc = fileloc_create (fid, lineno, 1);
4208 gc.inheader = fileId_isHeader (currentFile ());
4209
4210 context_enterFileAux ();
4211 }
4212}
4213
4214void context_enterIterDef (/*@observer@*/ uentry le)
4215{
b7e84605 4216 context_enterMacro (le);
616915dd 4217 gc.acct = typeIdSet_subtract (gc.facct, gc.nacct);
4218 gc.kind = CX_ITERDEF;
4219}
4220
4221void context_enterIterEnd (/*@observer@*/ uentry le)
4222{
b7e84605 4223 context_enterMacro (le);
616915dd 4224 gc.kind = CX_ITEREND;
4225}
4226
4227void
4228context_destroyMod (void)
4229 /*@globals killed gc@*/
4230{
4231 setCodePoint ();
4232 ctype_destroyMod ();
4233 setCodePoint ();
4234 usymtab_free ();
4235 setCodePoint ();
4236 fileTable_free (gc.ftab);
4237 filelocStack_free (gc.locstack);
4238 setCodePoint ();
4239 gc.ftab = fileTable_undefined;
4240
4241 macrocache_free (gc.mc);
4242 sfree (gc.moduleaccess);
4243 setCodePoint ();
4244
4245 fileloc_free (gc.saveloc); gc.saveloc = fileloc_undefined;
4246 fileloc_free (gc.pushloc); gc.pushloc = fileloc_undefined;
4247
4248 setCodePoint ();
4249 sRefSetList_free (gc.modrecs);
4250 setCodePoint ();
4251 flagMarkerList_free (gc.markers);
4252 setCodePoint ();
4253 messageLog_free (gc.msgLog);
4254 setCodePoint ();
4255 clauseStack_free (gc.clauses);
4256 setCodePoint ();
4257
4258 cstring_free (gc.msgAnnote);
4259 globSet_free (gc.globs_used);
28bf4b0b 4260 metaStateTable_free (gc.stateTable);
4261 annotationTable_free (gc.annotTable);
4262}
616915dd 4263
4264/*
4265** Flag shortcuts.
4266*/
4267
4268bool context_msgBoolInt (void)
4269{
4270 return gc.flags [FLG_BOOLINT];
4271}
4272
4273bool context_msgCharInt (void)
4274{
4275 return gc.flags [FLG_CHARINT];
4276}
4277
4278bool context_msgEnumInt (void)
4279{
4280 return gc.flags [FLG_ENUMINT];
4281}
4282
4283bool context_msgPointerArith (void)
4284{
4285 return gc.flags [FLG_POINTERARITH];
4286}
4287
4288bool context_msgStrictOps (void)
4289{
4290 return gc.flags [FLG_STRICTOPS];
4291}
4292
4293# ifndef NOLCL
4294bool context_msgLh (void)
4295{
4296 return gc.flags [FLG_DOLH];
4297}
4298# endif
4299
4300void context_pushLoc (void)
4301{
4302 fileloc_free (gc.pushloc);
4303 gc.pushloc = gc.saveloc;
4304 gc.saveloc = fileloc_undefined;
4305}
4306
4307void context_popLoc (void)
4308{
4309 gc.saveloc = fileloc_update (gc.saveloc, gc.pushloc);
4310}
4311
4312bool context_inGlobalScope (void)
4313{
4314 return (usymtab_inFileScope() || usymtab_inGlobalScope ());
4315}
4316
4317bool context_inInnerScope (void)
4318{
4319 return (gc.kind == CX_INNER);
4320}
4321
4322void context_setProtectVars (void)
4323{
4324 gc.protectVars = TRUE;
4325}
4326
4327bool context_anyErrors (void)
4328{
4329 return (gc.numerrors > 0);
4330}
4331
4332void context_hasError (void)
4333{
4334 gc.numerrors++;
ccf0a4a8 4335 DPRINTF (("num errors: %d", gc.numerrors));
616915dd 4336}
4337
4338int context_numErrors (void)
4339{
4340 return gc.numerrors;
4341}
4342
4343bool context_neednl (void)
4344{
4345 return gc.neednl;
4346}
4347
4348void context_setNeednl (void)
4349{
4350 gc.neednl = TRUE;
4351}
4352
4353int context_getExpect (void)
4354{
4355 return (context_getValue (FLG_EXPECT));
4356}
4357
4358# ifndef NOLCL
4359int context_getLCLExpect (void)
4360{
4361 return (context_getValue (FLG_LCLEXPECT));
4362}
4363# endif
4364
4365int context_getLimit (void)
4366{
4367 return (context_getValue (FLG_LIMIT));
4368}
4369
4370bool context_unlimitedMessages (void)
4371{
4372 return (context_getLimit () < 0);
4373}
4374
4375void context_releaseVars (void)
4376{
4377 llassert (gc.protectVars);
4378 gc.protectVars = FALSE;
4379}
4380
4381void context_sizeofReleaseVars (void)
4382{
4383 /* If there is a nested sizeof, this might not hold:
4384 llassert (gc.protectVars);
4385 */
4386
4387 gc.protectVars = FALSE;
4388}
4389
4390bool context_inProtectVars (void)
4391{
4392 return (gc.protectVars);
4393}
4394
4395void context_hideShowscan (void)
4396{
4397 gc.flags[FLG_SHOWSCAN] = FALSE;
4398}
4399
4400void context_unhideShowscan (void)
4401{
4402 gc.flags[FLG_SHOWSCAN] = TRUE;
4403}
4404
4405bool context_inHeader (void)
4406{
4407 return (gc.inheader);
4408}
4409
4410fileTable context_fileTable (void)
4411{
4412 return gc.ftab;
4413}
4414
4415cstring context_tmpdir (void)
4416{
4417 return (context_getString (FLG_TMPDIR));
4418}
4419
4420messageLog context_messageLog (void)
4421{
4422 return gc.msgLog;
4423}
4424
4425bool context_inMacroFunction (void)
4426{
4427 return (gc.kind == CX_MACROFCN);
4428}
4429
4430bool context_inMacroConstant (void)
4431{
4432 return (gc.kind == CX_MACROCONST);
4433}
4434
b7e84605 4435bool context_inUnknownMacro (void)
616915dd 4436{
4437 return (gc.kind == CX_UNKNOWNMACRO);
4438}
4439
4440void context_setShownFunction (void)
4441{
4442 gc.showfunction = FALSE;
4443}
4444
4445bool context_doDump (void)
4446{
4447 return cstring_isNonEmpty (context_getString (FLG_DUMP));
4448}
4449
4450bool context_doMerge (void)
4451{
4452 return cstring_isNonEmpty (context_getString (FLG_MERGE));
4453}
4454
4455cstring context_getDump (void)
4456{
4457 return context_getString (FLG_DUMP);
4458}
4459
4460cstring context_getMerge (void)
4461{
4462 return context_getString (FLG_MERGE);
4463}
4464
4465# ifndef NOLCL
4466bool context_inLCLLib (void)
4467{
4468 return (gc.kind == CX_LCLLIB);
4469}
4470
4471bool context_inImport (void)
4472{
4473 return (gc.inimport);
4474}
4475
4476void context_enterImport (void)
4477{
4478 gc.inimport = TRUE;
4479}
4480
4481void context_leaveImport (void)
4482{
4483 gc.inimport = FALSE;
4484}
4485# endif
4486
4487bool context_inMacro (void)
4488{
4489 return (gc.kind == CX_MACROFCN || gc.kind == CX_MACROCONST
4490 || gc.kind == CX_UNKNOWNMACRO
4491 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND);
4492}
4493
4494bool context_inIterDef (void)
4495{
4496 return (gc.kind == CX_ITERDEF);
4497}
4498
4499bool context_inIterEnd (void)
4500{
4501 return (gc.kind == CX_ITEREND);
4502}
4503
4504int context_getLinesProcessed (void)
4505{
4506 return (gc.linesprocessed);
4507}
4508
4509int context_getSpecLinesProcessed (void)
4510{
4511 return (gc.speclinesprocessed);
4512}
4513
4514# ifndef NOLCL
4515void context_processedSpecLine (void)
4516{
4517 gc.speclinesprocessed++;
4518}
4519
4520void context_resetSpecLines (void)
4521{
4522 gc.speclinesprocessed = 0;
4523}
4524# endif
4525
4526bool context_inGlobalContext (void)
4527{
4528 return (gc.kind == CX_GLOBAL);
4529}
4530
b7e84605 4531static void context_quietExitScopes (void)
4532{
4533 /*
4534 ** Try to restore the global scope (after an error).
4535 */
4536
4537 while (!usymtab_inFileScope ())
4538 {
4539 usymtab_quietExitScope (g_currentloc);
4540 }
4541
4542 gc.cont.glob = TRUE;
4543 gc.kind = CX_GLOBAL;
4544}
4545
4546void context_checkGlobalScope (void)
4547{
4548 if (gc.kind != CX_GLOBAL)
4549 {
a469ccf0 4550 if (context_inMacro ())
4551 {
4552 ; /* evans 2001-10-14: Okay to be in a macro here! */
4553 }
4554 else
4555 {
4556 llcontbug (message ("Not in global scope as expected: %q", context_unparse ()));
4557 context_quietExitScopes ();
4558 }
b7e84605 4559 }
4560}
4561
616915dd 4562void context_setFileId (fileId s)
4563{
4564 g_currentloc = fileloc_updateFileId (g_currentloc, s);
4565}
4566
4567bool context_setBoolName (void)
4568{
4569 return (!cstring_equalLit (context_getString (FLG_BOOLTYPE),
4570 DEFAULT_BOOLTYPE));
4571}
4572
4573cstring context_printBoolName (void)
4574{
4575 if (context_setBoolName ())
4576 {
4577 return context_getBoolName ();
4578 }
4579 else
4580 {
4581 return cstring_makeLiteralTemp ("boolean");
4582 }
4583}
4584
4585cstring context_getBoolName (void)
4586{
4587 return (context_getString (FLG_BOOLTYPE));
4588}
4589
4590cstring context_getFalseName (void)
4591{
4592 return (context_getString (FLG_BOOLFALSE));
4593}
4594
4595cstring context_getTrueName (void)
4596{
4597 return (context_getString (FLG_BOOLTRUE));
4598}
4599
4600cstring context_getLarchPath (void)
4601{
4602 return (context_getString (FLG_LARCHPATH));
4603}
4604
4605cstring context_getLCLImportDir (void)
4606{
4607 return (context_getString (FLG_LCLIMPORTDIR));
4608}
4609
4610static void context_setJustPopped (void)
4611{
4612 gc.justpopped = TRUE;
4613}
4614
4615void context_clearJustPopped (void)
4616{
4617 gc.justpopped = FALSE;
4618}
4619
4620bool context_justPopped (void)
4621{
4622 return (gc.justpopped);
4623}
4624
4625void context_setMacroMissingParams (void)
4626{
4627 gc.macroMissingParams = TRUE;
4628}
4629
4630void context_resetMacroMissingParams (void)
4631{
4632 gc.macroMissingParams = FALSE;
4633}
4634
4635bool context_isMacroMissingParams (void)
4636{
4637 return (gc.macroMissingParams);
4638}
4639
4640void context_showFilelocStack (void)
4641{
4642 filelocStack_printIncludes (gc.locstack);
4643}
4644
28bf4b0b 4645metaStateTable context_getMetaStateTable (void)
4646{
4647 return gc.stateTable;
4648}
4649
4650metaStateInfo context_lookupMetaStateInfo (cstring key)
4651{
4652 return metaStateTable_lookup (gc.stateTable, key);
4653}
4654
4655/*@null@*/ annotationInfo context_lookupAnnotation (cstring annot)
4656{
4657 annotationInfo ainfo;
4658
4659 ainfo = annotationTable_lookup (gc.annotTable, annot);
4660
4661 return ainfo;
4662}
4663
4664void context_addAnnotation (annotationInfo ainfo)
4665{
4666 if (annotationTable_contains (gc.annotTable, annotationInfo_getName (ainfo)))
4667 {
4668 voptgenerror
4669 (FLG_SYNTAX,
4670 message ("Duplicate annotation declaration: %s", annotationInfo_getName (ainfo)),
4671 annotationInfo_getLoc (ainfo));
4672
4673 annotationInfo_free (ainfo);
4674 }
4675 else
4676 {
4677 annotationTable_insert (gc.annotTable, ainfo);
4678 }
4679}
4680
4681void context_addMetaState (cstring mname, metaStateInfo msinfo)
4682{
4683 if (metaStateTable_contains (gc.stateTable, mname))
4684 {
4685 voptgenerror
4686 (FLG_SYNTAX,
4687 message ("Duplicate metastate declaration: %s", mname),
4688 metaStateInfo_getLoc (msinfo));
4689 cstring_free (mname);
4690 metaStateInfo_free (msinfo);
4691 }
4692 else
4693 {
990ec868 4694 DPRINTF (("Adding meta state: %s", mname));
28bf4b0b 4695 metaStateTable_insert (gc.stateTable, mname, msinfo);
4696 }
4697}
616915dd 4698
6970c11b 4699valueTable context_createValueTable (sRef s, stateInfo sinfo)
28bf4b0b 4700{
4701 if (metaStateTable_size (gc.stateTable) > 0)
4702 {
4703 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4704 /*@i32 should use smaller value... */
4705 DPRINTF (("Value table for: %s", sRef_unparse (s)));
990ec868 4706
28bf4b0b 4707 metaStateTable_elements (gc.stateTable, msname, msi)
4708 {
4709 mtContextNode context = metaStateInfo_getContext (msi);
616915dd 4710
28bf4b0b 4711 if (mtContextNode_matchesRefStrict (context, s))
4712 {
4713 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4714 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4715
990ec868 4716 valueTable_insert
4717 (res,
4718 cstring_copy (metaStateInfo_getName (msi)),
6970c11b 4719 stateValue_createImplicit (metaStateInfo_getDefaultValue (msi, s),
4720 stateInfo_copy (sinfo)));
28bf4b0b 4721 }
4722 else
4723 {
4724 DPRINTF (("No match: %s", metaStateInfo_unparse (msi)));
4725 }
4726 }
4727 end_metaStateTable_elements ;
4728
6970c11b 4729 stateInfo_free (sinfo);
28bf4b0b 4730 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4731 return res;
4732 }
4733 else
4734 {
6970c11b 4735 stateInfo_free (sinfo);
28bf4b0b 4736 return valueTable_undefined;
4737 }
4738}
616915dd 4739
6970c11b 4740valueTable context_createGlobalMarkerValueTable (stateInfo sinfo)
28bf4b0b 4741{
4742 if (metaStateTable_size (gc.stateTable) > 0)
4743 {
4744 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4745 /*@i32 should use smaller value... */
4746
4747 metaStateTable_elements (gc.stateTable, msname, msi)
4748 {
4749 /*@i23 only add global...*/
4750 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4751 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4752
4753 valueTable_insert (res,
4754 cstring_copy (metaStateInfo_getName (msi)),
4755 stateValue_create (metaStateInfo_getDefaultGlobalValue (msi),
6970c11b 4756 stateInfo_copy (sinfo)));
28bf4b0b 4757 }
4758 end_metaStateTable_elements ;
4759
6970c11b 4760 stateInfo_free (sinfo);
28bf4b0b 4761 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4762 return res;
4763 }
4764 else
4765 {
6970c11b 4766 stateInfo_free (sinfo);
28bf4b0b 4767 return valueTable_undefined;
4768 }
4769}
616915dd 4770
4771
4772
86d93ed3 4773/*drl 12/30/01 these are some ugly functions that were added to facilitate struct annotations */
4774
4775
4776/*drl added */
4777static ctype lastStruct;
4778
4779ctype context_setLastStruct (/*@returned@*/ ctype s) /*@globals lastStruct@*/
4780{
4781 lastStruct = s;
4782 return s;
4783}
4784
4785ctype context_getLastStruct (/*@returned@*/ /*ctype s*/) /*@globals lastStruct@*/
4786{
4787 return lastStruct;
4788}
4789
4790
4791/*@unused@*/ static int sInfoNum = 0;
4792
4793
4794struct getUe {
4795 /*@unused@*/ uentry ue;
4796 /*@unused@*/ sRef s;
4797};
4798
4799struct sInfo {
4800 /*@unused@*/ ctype ct;
4801 /*@unused@*/ constraintList inv;
4802 /*@unused@*/ int ngetUe;
4803 /*@unused@*/ struct getUe * t ;
4804};
4805
4806
4807static struct sInfo globalStructInfo;
4808
4809
4810/*drl 1/6/2001: I didn't think these functions were solid enough to include in the
4811 stable release of splint. I coomented them out so that they won't break anything
4812 but didn't delete them because they will be fixed and included later
4813*/
4814
4815/*
4816void setGlobalStructInfo(ctype ct, constraintList list)
4817{
4818 int i;
4819 uentryList f;
4820
4821 f = ctype_getFields (ct);
4822
4823 if (constraintList_isDefined(list) )
4824 {
4825 globalStructInfo.ct = ct;
4826 globalStructInfo.inv = list;
4827
4828 globalStructInfo.ngetUe = 0;
4829
4830 / *abstraction violation fix it * /
4831 globalStructInfo.t = dmalloc(f->nelements * sizeof(struct getUe) );
4832
4833 globalStructInfo.ngetUe = f->nelements;
4834
4835 i = 0;
4836
4837 uentryList_elements(f, ue)
4838 {
4839 globalStructInfo.t[i].ue = ue;
4840 globalStructInfo.t[i].s = uentry_getSref(ue);
4841 TPRINTF(( message(" setGlobalStructInfo:: adding ue=%s and sRef=%s",
4842 uentry_unparse(ue), sRef_unparse( uentry_getSref(ue) )
4843 )
4844 ));
4845 i++;
4846 }
4847 end_uentryList_elements;
4848 }
4849}
4850
4851*/
4852
4853bool hasInvariants (ctype ct) /*@*/
4854{
4855 if ( ctype_sameName(globalStructInfo.ct, ct) )
4856
4857 return TRUE;
4858
4859 else
4860
4861 return FALSE;
4862
4863}
4864
4865/*drl 1/6/2001: I didn't think these functions were solid enough to include in the
4866 stable release of splint. I coomented them out so that they won't break anything
4867 but didn't delete them because they will be fixed and included later
4868*/
4869
4870/*
4871constraintList getInvariants (ctype ct)
4872{
4873
4874 llassert(hasInvariants(ct) );
4875
4876 return globalStructInfo.inv;
4877}
4878*/
4879
4880/*
4881static int getSref (ctype ct, sRef s)
4882{
4883 int i;
4884
4885 i = 0;
4886
4887 / *
4888 DEBUGGIN INFO
4889
4890 fprintf(stderr, "getSref: ct = %s (%x)\n", ctype_unparse(ct), ct );
4891
4892 fprintf(stderr,"getSref: s = (%s) %X \n", sRef_unparse(s), s);
4893 * /
4894
4895 while (i < globalStructInfo.ngetUe)
4896 {
4897 DPRINTF(( message(" getSref:: comparing ue=%s and sRef=%s",
4898 uentry_unparse(globalStructInfo.t[i].ue),
4899 sRef_unparse(globalStructInfo.t[i].s)
4900 )
4901 ));
4902
4903 / *
4904 fprintf (stderr, " globalStructInfo.t[i].s = %x\n ",
4905 globalStructInfo.t[i].s );
4906 * /
4907
4908 if (sRef_same(globalStructInfo.t[i].s,s) )
4909 return i;
4910
4911 i++;
4912 }
4913 return -1;
4914}
4915
4916
4917sRef fixSref (ctype ct, sRef base, sRef fix)
4918{
4919 int index;
4920 uentry ue;
4921 cstring name;
4922 index = getSref(ct, fix);
4923
4924 if (index < 0)
4925 return fix;
4926
4927 ue = globalStructInfo.t[index].ue;
4928 name = uentry_getName(ue);
4929 fix = sRef_buildField(base, name );
4930 cstring_free(name);
4931 return fix;
4932}
4933
4934*/
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