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