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Updated README version number. (Testing sourceforge)
[splint.git] / src / context.c
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616915dd 1/*
2** LCLint - annotation-assisted static program checker
28bf4b0b 3** Copyright (C) 1994-2001 University of Virginia,
616915dd 4** Massachusetts Institute of Technology
5**
6** This program is free software; you can redistribute it and/or modify it
7** under the terms of the GNU General Public License as published by the
8** Free Software Foundation; either version 2 of the License, or (at your
9** option) any later version.
10**
11** This program is distributed in the hope that it will be useful, but
12** WITHOUT ANY WARRANTY; without even the implied warranty of
13** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14** General Public License for more details.
15**
16** The GNU General Public License is available from http://www.gnu.org/ or
17** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18** MA 02111-1307, USA.
19**
20** For information on lclint: lclint-request@cs.virginia.edu
21** To report a bug: lclint-bug@cs.virginia.edu
22** For more information: http://lclint.cs.virginia.edu
23*/
24/*
25** 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
28bf4b0b 852 gc.flags[FLG_WARNUSE] = TRUE;
616915dd 853 gc.flags[FLG_PREDASSIGN] = TRUE;
854 gc.flags[FLG_MODOBSERVER] = TRUE;
855 gc.flags[FLG_MACROVARPREFIXEXCLUDE] = TRUE;
856 gc.flags[FLG_EXTERNALNAMECASEINSENSITIVE] = TRUE;
857
858 gc.flags[FLG_PARAMIMPTEMP] = TRUE;
859 gc.flags[FLG_RETIMPONLY] = TRUE;
860 gc.flags[FLG_GLOBIMPONLY] = TRUE;
861 gc.flags[FLG_STRUCTIMPONLY] = TRUE;
862 gc.flags[FLG_PREPROC] = TRUE;
863 gc.flags[FLG_NAMECHECKS] = TRUE;
864 gc.flags[FLG_FORMATCODE] = TRUE;
865 gc.flags[FLG_FORMATTYPE] = TRUE;
866 gc.flags[FLG_BADFLAG] = TRUE;
867 gc.flags[FLG_WARNFLAGS] = TRUE;
28bf4b0b 868 gc.flags[FLG_FILEEXTENSIONS] = TRUE;
616915dd 869 gc.flags[FLG_WARNUNIXLIB] = TRUE;
870 gc.flags[FLG_WARNPOSIX] = TRUE;
871 gc.flags[FLG_SHOWCOL] = TRUE;
872 gc.flags[FLG_SHOWFUNC] = TRUE;
873 gc.flags[FLG_SUPCOUNTS] = TRUE;
874 gc.flags[FLG_HINTS] = TRUE;
875 gc.flags[FLG_SYNTAX] = TRUE;
876 gc.flags[FLG_TYPE] = TRUE;
877 gc.flags[FLG_INCOMPLETETYPE] = TRUE;
878 gc.flags[FLG_ABSTRACT] = TRUE;
879 gc.flags[FLG_ITER] = TRUE;
880 gc.flags[FLG_CONTROL] = TRUE;
881 gc.flags[FLG_UNRECOG] = TRUE;
882 gc.flags[FLG_SYSTEMUNRECOG] = TRUE;
883 gc.flags[FLG_LINTCOMMENTS] = TRUE;
884 gc.flags[FLG_ACCESSCZECH] = TRUE;
885 gc.flags[FLG_ACCESSMODULE] = TRUE;
886 gc.flags[FLG_ACCESSFILE] = TRUE;
887 gc.flags[FLG_MACROVARPREFIX] = TRUE;
888
28bf4b0b 889 gc.flags[FLG_ANNOTATIONERROR] = TRUE;
890 gc.flags[FLG_COMMENTERROR] = TRUE;
891
616915dd 892 /*
893 ** Changed for version 2.4.
894 */
895
896 gc.flags[FLG_GNUEXTENSIONS] = TRUE;
897
898 /*
899 ** On by default for Win32, but not Unix (to support MS/VC++ error message format).
900 */
901
902# ifdef WIN32
903 gc.flags[FLG_PARENFILEFORMAT] = TRUE;
904# endif
905}
906
907/*
908** C is way-lame, and you can initialize an array to a constant except where
909** it is declared. Hence, a macro is used to set the modeflags.
910*/
911
912/*@notfunction@*/
913# define SETFLAGS() \
914 { int i = 0; while (modeflags[i] != INVALID_FLAG) { \
915 if (!flagcode_isModeFlag (modeflags[i])) \
916 { llbug (message ("not a mode flag: %s", \
917 flagcode_unparse (modeflags[i]))); } \
918 else { context_setFlag (modeflags[i], TRUE); } i++; }}
919
920void
921context_setMode (cstring s)
922{
923 intSet setflags = intSet_new ();
924
925 allFlagCodes (code)
926 {
927 if (flagcode_isModeFlag (code))
928 {
929 if (gc.setGlobally[code])
930 {
931 (void) intSet_insert (setflags, (int) code);
932 }
933 }
934 } end_allFlagCodes;
935
936 if (!intSet_isEmpty (setflags))
937 {
938 cstring rflags = cstring_undefined;
939 int num = 0;
940
941 intSet_elements (setflags, el)
942 {
943 if (cstring_isUndefined (rflags))
944 {
945 rflags = cstring_copy (flagcode_unparse ((flagcode) (el)));
946 }
947 else
948 {
949 rflags = message ("%q, %s", rflags,
950 flagcode_unparse ((flagcode) el));
951 }
952
953 num++;
954 if (num > 4 && intSet_size (setflags) > 6)
955 {
956 rflags = message ("%q, (%d others) ...", rflags,
957 intSet_size (setflags) - num);
958 break;
959 }
960 } end_intSet_elements ;
961
962 voptgenerror (FLG_WARNFLAGS,
963 message ("Setting mode %s after setting mode flags will "
964 "override set values of flags: %s",
965 s, rflags),
966 g_currentloc);
967
968 cstring_free (rflags);
969 }
970
971 intSet_free (setflags);
972
973 context_resetModeFlags ();
974
975 if (cstring_equalLit (s, "standard"))
976 {
977 flagcode modeflags[] =
978 {
979 FLG_ENUMINT, FLG_MACROMATCHNAME,
7534721d 980 FLG_STRINGLITNOROOM,
616915dd 981 FLG_MACROUNDEF, FLG_RELAXQUALS,
982 FLG_USEALLGLOBS, FLG_CHECKSTRICTGLOBALS,
983 FLG_CHECKSTRICTGLOBALIAS,
984 FLG_CHECKEDGLOBALIAS,
985 FLG_CHECKMODGLOBALIAS,
986 FLG_PREDBOOLOTHERS, FLG_PREDBOOLINT,
1d239d69 987 FLG_UNSIGNEDCOMPARE,
616915dd 988 FLG_PARAMUNUSED, FLG_VARUNUSED, FLG_FUNCUNUSED,
989 FLG_TYPEUNUSED,
990 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED, FLG_FIELDUNUSED,
1d239d69 991 FLG_PTRNUMCOMPARE, FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
992 FLG_MUTREP, FLG_NOEFFECT, FLG_IMPTYPE,
616915dd 993 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
28bf4b0b 994 FLG_SPECUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB, FLG_MISPLACEDSHAREQUAL,
616915dd 995 FLG_MATCHFIELDS,
28bf4b0b 996 FLG_FORMATCONST,
616915dd 997 FLG_MACROPARAMS, FLG_MACROASSIGN, FLG_SEFPARAMS,
998 FLG_MACROSTMT, FLG_MACROPARENS,
999 FLG_MACROFCNDECL,
1000 FLG_MACROCONSTDECL,
1001 FLG_MACROREDEF, FLG_INFLOOPS, FLG_UNREACHABLE,
1002 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1003 FLG_FIRSTCASE,
1004 FLG_NESTEDEXTERN,
1005 FLG_NUMLITERAL,
1006 FLG_ZEROBOOL,
1007 /* memchecks flags */
1008 FLG_NULLDEREF,
1009 FLG_NULLSTATE, FLG_NULLASSIGN,
1010 FLG_NULLPASS, FLG_NULLRET,
1011
1012 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1013 FLG_RETSTACK,
1014
1015 /* memtrans flags */
1016 FLG_EXPOSETRANS,
1017 FLG_OBSERVERTRANS,
1018 FLG_DEPENDENTTRANS,
1019 FLG_NEWREFTRANS,
1020 FLG_ONLYTRANS,
1021 FLG_OWNEDTRANS,
1022 FLG_FRESHTRANS,
1023 FLG_SHAREDTRANS,
1024 FLG_TEMPTRANS,
1025 FLG_KEPTTRANS,
1026 FLG_REFCOUNTTRANS,
1027 FLG_STATICTRANS,
1028 FLG_UNKNOWNTRANS,
1029 FLG_KEEPTRANS,
1030 FLG_IMMEDIATETRANS,
1031
1032 FLG_EXPORTLOCAL,
1033
1034 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1035 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1036 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1037 FLG_MEMIMPLICIT,
1038 FLG_BRANCHSTATE,
28bf4b0b 1039 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1040 FLG_EVALORDER, FLG_SHADOW, FLG_READONLYSTRINGS,
1041 FLG_EXITARG,
1042 FLG_IMPCHECKEDSPECGLOBALS,
1043 FLG_MODGLOBS, FLG_WARNLINTCOMMENTS,
1044 FLG_IFEMPTY, FLG_REALCOMPARE,
1045 FLG_BOOLOPS, FLG_PTRNEGATE,
1046 FLG_SHIFTSIGNED,
28bf4b0b 1047 FLG_BUFFEROVERFLOWHIGH,
1048 FLG_BUFFEROVERFLOW,
1049 INVALID_FLAG
1050 } ;
616915dd 1051
1052 SETFLAGS ();
1053 }
1054 else if (cstring_equalLit (s, "weak"))
1055 {
1056 flagcode modeflags[] =
1057 {
1058 FLG_BOOLINT, FLG_CHARINT, FLG_FLOATDOUBLE,
1059 FLG_ENUMINT, FLG_RELAXQUALS, FLG_FORWARDDECL,
1060 FLG_CHARINDEX, FLG_ABSTVOIDP, FLG_USEALLGLOBS,
1061 FLG_CHARUNSIGNEDCHAR,
1062 FLG_PREDBOOLOTHERS,
1063 FLG_VARUNUSED, FLG_FUNCUNUSED,
1064 FLG_TYPEUNUSED,
1065 FLG_CHECKSTRICTGLOBALS, FLG_MACROMATCHNAME,
1066 FLG_RETVALOTHER,
1067 FLG_IFEMPTY,
1d239d69 1068 FLG_BUFFEROVERFLOWHIGH,
616915dd 1069 FLG_RETSTACK, FLG_PTRNEGATE,
28bf4b0b 1070 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1071 FLG_LONGUNSIGNEDINTEGRAL,
1072 FLG_LONGUNSIGNEDUNSIGNEDINTEGRAL,
1073 FLG_NUMLITERAL,
1074 FLG_CHARINTLITERAL,
1075 FLG_ZEROBOOL,
28bf4b0b 1076 FLG_BUFFEROVERFLOWHIGH,
616915dd 1077 INVALID_FLAG
1078 } ;
1079
1080 SETFLAGS ();
1081 }
1082 else if (cstring_equalLit (s, "checks"))
1083 {
1084 flagcode modeflags[] =
1085 {
1086 FLG_EXPORTLOCAL, FLG_IMPTYPE,
28bf4b0b 1087 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1088 FLG_CHECKSTRICTGLOBALIAS,
1089 FLG_CHECKEDGLOBALIAS,
1090 FLG_CHECKMODGLOBALIAS,
1091 FLG_UNCHECKEDGLOBALIAS,
28bf4b0b 1092 FLG_FORMATCONST,
7534721d 1093 FLG_STRINGLITNOROOM,
1094 FLG_STRINGLITSMALLER,
616915dd 1095 FLG_EXITARG, FLG_PTRNUMCOMPARE,
1d239d69 1096 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1097 FLG_MACROUNDEF, FLG_MUSTMOD, FLG_ALLGLOBALS,
616915dd 1098 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1099 FLG_USEALLGLOBS, FLG_MUTREP, FLG_RETALIAS,
1100 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1101 FLG_FUNCUNUSED, FLG_GLOBALSIMPMODIFIESNOTHING,
1102 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_VARUNUSED,
1103 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1104 FLG_NOEFFECT, FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1105 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
1106 FLG_SPECUNDEF, FLG_IMPCHECKMODINTERNALS,
1107 FLG_DECLUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB,
28bf4b0b 1108 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
616915dd 1109 FLG_MATCHFIELDS,
1110 FLG_MACROPARAMS,
1111 FLG_MACROASSIGN,
1112 FLG_DECLPARAMMATCH,
1113 FLG_FCNDEREF,
1114 FLG_FIRSTCASE,
1115 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1116 FLG_MACROCONSTDECL,
1117 FLG_MACROFCNDECL,
1118 FLG_MACROREDEF,
1119 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1120 FLG_UNREACHABLE,
1121 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE,
1122 FLG_EVALORDER, FLG_USEDEF,
1123
1124 FLG_NESTEDEXTERN,
1125
1d239d69 1126 /* warn use flags */
1127 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1128 FLG_BUFFEROVERFLOWHIGH,
1129
616915dd 1130 /* memchecks flags */
1131
1132 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1133 FLG_NULLPASS, FLG_NULLRET,
1134
1135 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF, FLG_RETSTACK,
1136
1137 /* memtrans flags */
1138 FLG_EXPOSETRANS,
1139 FLG_OBSERVERTRANS,
1140 FLG_DEPENDENTTRANS,
1141 FLG_NEWREFTRANS,
1142 FLG_ONLYTRANS,
1143 FLG_OWNEDTRANS,
1144 FLG_FRESHTRANS,
1145 FLG_SHAREDTRANS,
1146 FLG_TEMPTRANS,
1147 FLG_KEPTTRANS,
1148 FLG_REFCOUNTTRANS,
1149 FLG_STATICTRANS,
1150 FLG_UNKNOWNTRANS,
1151 FLG_STATICINITTRANS,
1152 FLG_UNKNOWNINITTRANS,
1153 FLG_KEEPTRANS,
1154 FLG_IMMEDIATETRANS,
1155 FLG_ONLYUNQGLOBALTRANS,
1156 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1157 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1158 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1159 FLG_MEMIMPLICIT,
1160 FLG_BRANCHSTATE,
1161 FLG_NULLPOINTERARITH,
1162 FLG_SHADOW, FLG_DEPARRAYS,
1163 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1164 FLG_LOOPLOOPBREAK, FLG_SWITCHLOOPBREAK, FLG_MODGLOBS,
1165 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1166 FLG_MACROMATCHNAME, FLG_WARNLINTCOMMENTS,
1167 FLG_INCLUDENEST, FLG_ANSIRESERVED, FLG_CPPNAMES,
1168 FLG_NOPARAMS, FLG_IFEMPTY, FLG_WHILEEMPTY, FLG_REALCOMPARE,
1169 FLG_BOOLOPS, FLG_SHIFTSIGNED,
28bf4b0b 1170 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
616915dd 1171 INVALID_FLAG } ;
1172
1173 SETFLAGS ();
1174 }
1175 else if (cstring_equalLit (s, "strict"))
1176 {
1177 flagcode modeflags[] =
1178 {
1179 FLG_CHECKSTRICTGLOBALIAS,
1180 FLG_CHECKEDGLOBALIAS,
1181 FLG_CHECKMODGLOBALIAS,
1182 FLG_UNCHECKEDGLOBALIAS,
1183 FLG_MODFILESYSTEM,
1184 FLG_MACROMATCHNAME,
28bf4b0b 1185 FLG_FORMATCONST,
7534721d 1186 FLG_STRINGLITNOROOM,
1187 FLG_STRINGLITSMALLER,
28bf4b0b 1188 FLG_STATETRANSFER, FLG_STATEMERGE,
616915dd 1189 FLG_MACROUNDEF, FLG_MUTREP, FLG_MUSTMOD,
1190 FLG_ALLGLOBALS, FLG_IMPTYPE,
1191 FLG_MODNOMODS, FLG_MODGLOBSUNSPEC, FLG_MODSTRICTGLOBSUNSPEC,
1192 FLG_GLOBUNSPEC, FLG_SIZEOFTYPE,
1193 FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1194 FLG_NOPARAMS, FLG_OLDSTYLE, FLG_EXITARG,
1195 FLG_RETSTACK,
1196 FLG_FCNDEREF,
1197 FLG_ONLYUNQGLOBALTRANS,
1198 FLG_GLOBALSIMPMODIFIESNOTHING,
1199 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1200 FLG_INTERNALGLOBS, FLG_INTERNALGLOBSNOGLOBS,
1201 FLG_USEALLGLOBS, FLG_RETALIAS,
1202 FLG_MODGLOBS, FLG_MODGLOBSUNSPEC, FLG_MODGLOBSUNCHECKED,
1203 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1204 FLG_NOEFFECTUNCON, FLG_EVALORDERUNCON,
1205 FLG_FUNCUNUSED,
1206 FLG_EXPORTITER, FLG_EXPORTCONST,
1207 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_TOPUNUSED,
1208 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1209 FLG_VARUNUSED,
1210 FLG_NULLPOINTERARITH, FLG_POINTERARITH,
1211 FLG_PTRNUMCOMPARE,
1d239d69 1212 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1213 FLG_NOEFFECT, FLG_RETVALINT, FLG_RETVALBOOL, FLG_RETVALOTHER,
616915dd 1214 FLG_ANSIRESERVED, FLG_ANSIRESERVEDLOCAL, FLG_CPPNAMES,
1215 FLG_RETVALBOOL, FLG_RETVALINT, FLG_SPECUNDEF,
1216 FLG_DECLUNDEF, FLG_STRICTOPS, FLG_INCONDEFS,
28bf4b0b 1217 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
616915dd 1218 FLG_INCONDEFSLIB, FLG_MATCHFIELDS, FLG_EXPORTMACRO, FLG_EXPORTVAR,
1219 FLG_EXPORTFCN, FLG_EXPORTTYPE, FLG_EXPORTLOCAL, FLG_MACROPARAMS,
1220 FLG_MACROASSIGN,
1221 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1222 FLG_MACROFCNDECL,
1223 FLG_MACROCONSTDECL,
1224 FLG_MACROREDEF, FLG_MACROEMPTY,
1225 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1226 FLG_UNREACHABLE,
1227 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1228 FLG_EVALORDER,
1229 FLG_MODUNCON, FLG_MODUNCONNOMODS, FLG_MODINTERNALSTRICT,
1230 FLG_MODOBSERVERUNCON,
1231
1232 FLG_NESTEDEXTERN,
1233 FLG_FIRSTCASE,
1234
1d239d69 1235 /* warn use flags */
1236 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1237 FLG_BUFFEROVERFLOWHIGH,
1238 FLG_BUFFEROVERFLOW, FLG_TOCTOU,
1239
616915dd 1240 /* memchecks flags */
1241 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1242 FLG_NULLPASS, FLG_NULLRET,
1243
1244 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1245
1246 /* memtrans flags */
1247 FLG_EXPOSETRANS,
1248 FLG_OBSERVERTRANS,
1249 FLG_DEPENDENTTRANS,
1250 FLG_NEWREFTRANS,
1251 FLG_ONLYTRANS,
1252 FLG_OWNEDTRANS,
1253 FLG_FRESHTRANS,
1254 FLG_SHAREDTRANS,
1255 FLG_TEMPTRANS,
1256 FLG_KEPTTRANS,
1257 FLG_REFCOUNTTRANS,
1258 FLG_STATICTRANS,
1259 FLG_UNKNOWNTRANS,
1260 FLG_KEEPTRANS,
1261 FLG_IMMEDIATETRANS,
1262 FLG_STATICINITTRANS,
1263 FLG_UNKNOWNINITTRANS,
1264
1265 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1266 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1267 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1268 FLG_MEMIMPLICIT,
1269 FLG_BRANCHSTATE,
1270
1271 FLG_DECLPARAMNAME, FLG_DECLPARAMMATCH,
1272
1273 FLG_SHADOW, FLG_DEPARRAYS,
1274 FLG_STRICTDESTROY, FLG_STRICTUSERELEASED, FLG_STRICTBRANCHSTATE,
1275 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1276 FLG_LOOPLOOPBREAK, FLG_LOOPSWITCHBREAK, FLG_SWITCHLOOPBREAK,
1277 FLG_SWITCHSWITCHBREAK, FLG_LOOPLOOPCONTINUE,
1278 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1279 FLG_ALLGLOBALS, FLG_IMPCHECKEDSTRICTGLOBALS,
1280 FLG_IMPCHECKEDSTRICTSTATICS,
1281 FLG_IMPCHECKEDSTRICTSPECGLOBALS,
1282 FLG_IMPCHECKMODINTERNALS,
1283 FLG_WARNMISSINGGLOBALS, FLG_WARNMISSINGGLOBALSNOGLOBS,
1284 FLG_WARNLINTCOMMENTS, FLG_ANSIRESERVEDLOCAL,
1285 FLG_INCLUDENEST, FLG_STRINGLITERALLEN,
1286 FLG_NUMSTRUCTFIELDS, FLG_NUMENUMMEMBERS,
1287 FLG_CONTROLNESTDEPTH,
1288 FLG_FORBLOCK, FLG_WHILEBLOCK,
1289 FLG_FOREMPTY, FLG_WHILEEMPTY,
1290 FLG_IFEMPTY, FLG_IFBLOCK,
1291 FLG_ELSEIFCOMPLETE,
1292 FLG_REALCOMPARE, FLG_BOOLOPS,
1293 FLG_SYSTEMDIRERRORS, FLG_UNUSEDSPECIAL,
1294
1295 FLG_SHIFTSIGNED, FLG_BITWISEOPS,
28bf4b0b 1296 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1297 INVALID_FLAG
1298 } ;
616915dd 1299
1300 SETFLAGS ();
1301 }
1302 else
1303 {
1304 llcontbug (message ("context_setMode: bad mode: %s", s));
1305 }
1306}
1307
1308bool
1309context_isSpecialFile (cstring fname)
1310{
28bf4b0b 1311 cstring ext = fileLib_getExtension (fname);
616915dd 1312
28bf4b0b 1313 return (cstring_equalLit (ext, ".y")
1314 || cstring_equalLit (ext, ".l")
616915dd 1315 || cstring_equalLit (fname, "lex.yy.c"));
1316}
1317
1318bool
1319context_isSystemDir (cstring dir)
1320{
68de3f33 1321 cstring thisdir = cstring_copy (context_getString (FLG_SYSTEMDIRS));
1322 cstring savedir = thisdir;
1323 cstring nextdir = cstring_afterChar (thisdir, PATH_SEPARATOR);
1324
1325 if (cstring_isDefined (nextdir))
616915dd 1326 {
68de3f33 1327 /*@access cstring@*/
1328 *nextdir = '\0'; /* closes thisdir */
616915dd 1329 nextdir += 1;
68de3f33 1330 /*@noaccess cstring@*/
616915dd 1331 }
1332
68de3f33 1333 /* 2001-09-09: added thisdir[0] != '\0'
1334 ** herbert: don't compare with an empty name!
1335 ** should return false for empty directory path
1336 */
1337
1338 while (!cstring_isEmpty (thisdir))
616915dd 1339 {
1340 DPRINTF (("Test: %s / %s", dir, thisdir));
1341
68de3f33 1342 if (osd_equalCanonicalPrefix (dir, thisdir))
616915dd 1343 {
68de3f33 1344 cstring_free (savedir);
616915dd 1345 return TRUE;
1346 }
1347
68de3f33 1348 if (cstring_isDefined (nextdir))
616915dd 1349 {
1350 thisdir = nextdir;
68de3f33 1351 nextdir = cstring_afterChar (thisdir, PATH_SEPARATOR);
616915dd 1352
68de3f33 1353 if (cstring_isDefined (nextdir))
616915dd 1354 {
68de3f33 1355 /*@access cstring@*/
616915dd 1356 *nextdir = '\0';
1357 nextdir += 1;
68de3f33 1358 /*@noaccess cstring@*/
616915dd 1359 }
1360 }
1361 else
1362 {
1363 break;
1364 }
1365 }
1366
1367 DPRINTF (("Returns FALSE"));
68de3f33 1368 cstring_free (savedir);
616915dd 1369 return FALSE;
1370}
1371
1372void
1373context_addFileAccessType (typeId t)
1374{
1375 cstring base;
1376
28bf4b0b 1377 if (context_inFunctionLike ())
616915dd 1378 {
1379 gc.acct = typeIdSet_insert (gc.acct, t);
1380 }
1381
1382 gc.facct = typeIdSet_insert (gc.facct, t);
1383
1384 base = fileloc_getBase (g_currentloc);
1385 insertModuleAccess (base, t);
1386 DPRINTF (("Add file access: %s / %s", typeIdSet_unparse (gc.facct),
1387 typeIdSet_unparse (gc.acct)));
1388}
1389
1390void
1391context_removeFileAccessType (typeId t)
1392{
1393 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
1394 || gc.kind == CX_UNKNOWNMACRO)
1395 {
1396 gc.acct = typeIdSet_removeFresh (gc.acct, t);
1397 }
1398
1399 gc.facct = typeIdSet_removeFresh (gc.facct, t);
1400 gc.nacct = typeIdSet_insert (gc.nacct, t);
1401}
1402
28bf4b0b 1403void context_enterFunctionHeader (void)
616915dd 1404{
b7e84605 1405 if (context_getFlag (FLG_GRAMMAR))
1406 {
1407 lldiagmsg (message ("Enter function header: %q", context_unparse ()));
1408 }
1409
ba45e1e4 1410 if (gc.kind != CX_GLOBAL)
1411 {
1412 llparseerror (cstring_makeLiteral
1413 ("Likely parse error. Function header outside global context."));
1414 }
1415 else
1416 {
1417 llassert (gc.kind == CX_GLOBAL);
1418 DPRINTF (("Enter function header!"));
1419 gc.inFunctionHeader = TRUE;
1420 }
616915dd 1421}
1422
28bf4b0b 1423void context_exitFunctionHeader (void)
616915dd 1424{
b7e84605 1425 if (context_getFlag (FLG_GRAMMAR))
1426 {
1427 lldiagmsg (message ("Exit function header: %q", context_unparse ()));
1428 }
1429
d9a28762 1430 DPRINTF (("Exit function header!"));
1431 gc.inFunctionHeader = FALSE;
616915dd 1432}
1433
28bf4b0b 1434bool context_inFunctionHeader (void)
1435{
d9a28762 1436 return (gc.inFunctionHeader);
28bf4b0b 1437}
1438
1439void context_enterFunctionDeclaration (uentry e)
1440{
b7e84605 1441 if (context_getFlag (FLG_GRAMMAR))
1442 {
1443 lldiagmsg (message ("Enter function declaration: %q", context_unparse ()));
1444 }
1445
28bf4b0b 1446 DPRINTF (("Enter function decl"));
1447 llassert (gc.savekind == CX_ERROR);
1448 gc.savekind = gc.kind;
b7e84605 1449 gc.savecont = gc.cont;
28bf4b0b 1450 gc.kind = CX_FCNDECLARATION;
1451 gc.cont.fcn = e;
1452}
1453
1454void context_exitFunctionDeclaration (void)
616915dd 1455{
b7e84605 1456 if (context_getFlag (FLG_GRAMMAR))
1457 {
1458 lldiagmsg (message ("Exit function declaration: %q", context_unparse ()));
1459 }
1460
28bf4b0b 1461 DPRINTF (("Exit function decl"));
1462 llassert (gc.savekind != CX_ERROR);
1463 llassert (gc.kind == CX_FCNDECLARATION);
1464 gc.kind = gc.savekind;
b7e84605 1465 gc.cont = gc.savecont;
1466
28bf4b0b 1467 gc.savekind = CX_ERROR;
b7e84605 1468
1469 if (context_getFlag (FLG_GRAMMAR))
1470 {
1471 lldiagmsg (message ("After exit function declaration: %q", context_unparse ()));
1472 }
616915dd 1473}
1474
28bf4b0b 1475bool context_inFunctionDeclaration (void)
1476{
1477 return (gc.kind == CX_FCNDECLARATION);
1478}
1479
1480
616915dd 1481void
1482context_enterMacro (/*@observer@*/ uentry e)
1483{
1484 context_enterFunction (e);
1485 gc.kind = CX_MACROFCN;
1486}
1487
1488void
1489context_enterUnknownMacro (/*@dependent@*/ uentry e)
1490{
1491 llassert (uentry_isFunction (e));
1492 context_enterFunction (e);
1493 gc.kind = CX_UNKNOWNMACRO;
1494}
1495
1496void context_enterAndClause (exprNode e)
1497{
1498
1499 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1500 pushClause (ANDCLAUSE);
1501}
1502
1503void context_enterOrClause (exprNode e)
1504{
1505 usymtab_trueBranch (guardSet_invert (exprNode_getGuards (e)));
1506 pushClause (ORCLAUSE);
1507}
1508
1509bool context_inDeepLoop (void)
1510{
1511 bool inLoop = FALSE;
1512
1513 clauseStack_elements (gc.clauses, el)
1514 {
1515 if (clause_isLoop (el))
1516 {
1517 if (inLoop)
1518 {
1519 return TRUE;
1520 }
1521
1522 inLoop = TRUE;
1523 }
1524 } end_clauseStack_elements;
1525
1526 return FALSE;
1527}
1528
1529bool context_inDeepSwitch (void)
1530{
1531 bool inLoop = FALSE;
1532
1533 clauseStack_elements (gc.clauses, el)
1534 {
1535 if (clause_isSwitch (el))
1536 {
1537 if (inLoop)
1538 {
1539 return TRUE;
1540 }
1541
1542 inLoop = TRUE;
1543 }
1544 } end_clauseStack_elements;
1545
1546 return FALSE;
1547}
1548
1549bool context_inDeepLoopSwitch (void)
1550{
1551 bool inLoop = FALSE;
1552
1553 clauseStack_elements (gc.clauses, el)
1554 {
1555 if (clause_isBreakable (el))
1556 {
1557 if (inLoop)
1558 {
1559 return TRUE;
1560 }
1561
1562 inLoop = TRUE;
1563 }
1564 } end_clauseStack_elements;
1565
1566 return FALSE;
1567}
1568
1569clause context_breakClause (void)
1570{
1571 clauseStack_elements (gc.clauses, el)
1572 {
1573 if (clause_isSwitch (el))
1574 {
1575 return el;
1576 }
1577 else if (clause_isLoop (el))
1578 {
1579 return el;
1580 }
1581 else
1582 {
1583 ;
1584 }
1585 } end_clauseStack_elements;
1586
1587 return NOCLAUSE;
1588}
1589
1590clause context_nextBreakClause (void)
1591{
1592 bool hasOne = FALSE;
1593
1594 clauseStack_elements (gc.clauses, el)
1595 {
1596 if (clause_isBreakable (el))
1597 {
1598 if (hasOne)
1599 {
1600 return el;
1601 }
1602 else
1603 {
1604 hasOne = TRUE;
1605 }
1606 }
1607 } end_clauseStack_elements;
1608
1609 return NOCLAUSE;
1610}
1611
1612bool context_inConditional (void)
1613{
1614 clauseStack_elements (gc.clauses, el)
1615 {
1616 /*
1617 ** Should also include TRUECLAUSE and FALSECLAUSE, but need
1618 ** to distinguish if from ? for this
1619 */
1620
1621 if (clause_isBreakable (el) && (el != DOWHILECLAUSE))
1622 {
1623 return TRUE;
1624 }
1625 } end_clauseStack_elements;
1626
1627 return FALSE;
1628}
1629
1630void context_exitAndClause (exprNode pred, exprNode tbranch)
1631{
1632 context_setJustPopped ();
1633
1634 llassert (gc.inclause == ANDCLAUSE);
1635
1636 usymtab_popAndBranch (pred, tbranch);
1637 clauseStack_pop (gc.clauses);
1638 gc.inclause = topClause (gc.clauses);
1639}
1640
1641void context_exitOrClause (exprNode pred, exprNode tbranch)
1642{
1643 context_setJustPopped ();
1644
1645 llassert (gc.inclause == ORCLAUSE);
1646
1647 usymtab_popOrBranch (pred, tbranch);
1648 clauseStack_pop (gc.clauses);
1649 gc.inclause = topClause (gc.clauses);
1650}
1651
1652static void context_enterCondClauseAux (clause cl)
1653 /*@modifies gc@*/
1654{
1655 pushClause (cl);
1656}
1657
1658static void context_enterTrueAux (exprNode e, clause cl)
1659 /*@modifies gc@*/
1660{
1661 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1662 pushClause (cl);
1663}
1664
1665void context_enterIterClause (void)
1666{
1667 context_enterTrueAux (exprNode_undefined, ITERCLAUSE);
1668}
1669
1670void context_enterDoWhileClause (void)
1671{
1672 pushClause (DOWHILECLAUSE);
1673}
1674
1675void context_enterWhileClause (exprNode e)
1676{
1677 context_enterTrueAux (e, WHILECLAUSE);
1678}
1679
1680void context_enterForClause (exprNode e)
1681{
1682 context_enterTrueAux (e, FORCLAUSE);
1683}
1684
1685void context_enterTrueClause (exprNode e)
1686{
1687 context_enterTrueAux (e, TRUECLAUSE);
1688}
1689
1690void context_enterSwitch (exprNode e)
1691{
1692
1693 usymtab_switchBranch (e);
1694 context_enterCondClauseAux (SWITCHCLAUSE);
1695}
1696
1697void context_exitSwitch (exprNode e, bool allpaths)
1698{
1699 usymtab_exitSwitch (e, allpaths);
1700
1701 while (clause_isCase (clauseStack_top (gc.clauses)))
1702 {
1703 clauseStack_pop (gc.clauses);
1704 }
1705
1706 context_exitClauseSimp ();
1707}
1708
1709void context_enterCaseClause (exprNode e)
1710{
1711 bool branch = FALSE;
1712
1713 DPRINTF (("Enter case clause!"));
1714
1715 branch = usymtab_newCase (exprNode_undefined, e);
1716
1717 if (branch)
1718 {
1719 context_enterCondClauseAux (CASECLAUSE);
1720 }
1721}
1722
1723static void context_enterFalseClauseAux (exprNode e, clause cl)
1724 /*@modifies gc@*/
1725{
1726 usymtab_altBranch (guardSet_invert (exprNode_getGuards (e)));
1727 gc.inclause = cl;
1728 clauseStack_switchTop (gc.clauses, cl);
1729}
1730
1731void context_enterFalseClause (exprNode e)
1732{
1733
1734 context_enterFalseClauseAux (e, FALSECLAUSE);
1735}
1736
1737void
1738context_enterConstantMacro (/*@exposed@*/ /*@dependent@*/ uentry e)
1739{
1740 gc.kind = CX_MACROCONST;
1741 gc.cont.fcn = e;
1742 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1743
1744 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1745 gc.nacct);
1746
1747
1748 usymtab_enterScope ();
1749 sRef_enterFunctionScope ();
1750
1751 gc.globs = globSet_undefined;
1752 globSet_clear (gc.globs_used);
1753 gc.mods = sRefSet_undefined;
1754}
1755
1756uentry context_getHeader (void)
1757{
1758 if (!(context_inFunctionLike () || (gc.kind == CX_MACROCONST)))
1759 {
1760 llfatalbug (message ("context_getHeader: bad call: %q",
1761 context_unparse ()));
1762 }
1763
1764 return (gc.cont.fcn);
1765}
1766
1767void
1768context_setFunctionDefined (fileloc loc)
1769{
1770 switch (gc.kind)
1771 {
1772 case CX_UNKNOWNMACRO:
1773 case CX_FUNCTION:
1774 case CX_MACROFCN:
1775 uentry_setFunctionDefined (gc.cont.fcn, loc);
1776 break;
1777 default:
1778 /* (not a bug because of parse errors) */
1779 break;
1780 }
1781}
1782
1783void
1784context_enterFunction (/*@exposed@*/ uentry e)
1785{
1786 gc.kind = CX_FUNCTION;
1787 gc.cont.fcn = e;
1788
28bf4b0b 1789 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1790
616915dd 1791 if (uentry_hasAccessType (e))
1792 {
1793 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1794 gc.nacct);
1795 }
1796 else
1797 {
1798 gc.acct = gc.facct;
1799 }
1800
1801 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1802 typeIdSet_unparse (gc.acct)));
1803
1804 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1805
1806 gc.globs = uentry_getGlobs (e);
1807 globSet_clear (gc.globs_used);
1808 gc.mods = uentry_getMods (e);
1809
1810 usymtab_enterFunctionScope (e);
1811 sRef_enterFunctionScope ();
1812}
1813
7ebcc5bb 1814void
1815context_enterOldStyleScope (void)
1816{
1817 gc.kind = CX_OLDSTYLESCOPE;
1818 DPRINTF (("Enter old style scope!"));
1819 usymtab_enterFunctionScope (uentry_undefined);
1820}
1821
1822void
1823context_completeOldStyleFunction (uentry e)
1824{
1825 llassert (gc.kind == CX_OLDSTYLESCOPE);
1826
1827 gc.kind = CX_FUNCTION;
1828 gc.cont.fcn = e;
1829
1830 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1831
1832 if (uentry_hasAccessType (e))
1833 {
1834 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1835 gc.nacct);
1836 }
1837 else
1838 {
1839 gc.acct = gc.facct;
1840 }
1841
1842 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1843 typeIdSet_unparse (gc.acct)));
1844
1845 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1846
1847 if (!globSet_isEmpty (uentry_getGlobs (e)))
1848 {
1849 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1850 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1851 }
1852
1853 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1854
1855 gc.globs = uentry_getGlobs (e);
1856 globSet_clear (gc.globs_used);
1857
1858 gc.mods = uentry_getMods (e);
1859
1860 if (!sRefSet_isEmpty (gc.mods))
1861 {
1862 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1863 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1864 }
1865
1866 sRef_enterFunctionScope ();
1867}
1868
616915dd 1869static bool context_checkStrictGlobals (void)
1870{
1871 return (context_getFlag (FLG_CHECKSTRICTGLOBALS));
1872}
1873
1874static bool context_hasGlobs (void)
1875{
1876 if (context_inFunctionLike ())
1877 {
1878 return (uentry_hasGlobs (gc.cont.fcn));
1879 }
1880 else
1881 {
1882 return (FALSE);
1883 }
1884}
1885
1886static bool context_checkCheckedGlobals (void)
1887{
1888 return (context_getFlag (FLG_GLOBALS)
1889 && (context_getFlag (FLG_GLOBUNSPEC)
1890 || context_hasGlobs ()));
1891}
1892
1893static bool context_checkUnknownGlobals (void)
1894{
1895 /* should be uentry_hasGlobs ? */
1896
1897 return (context_getFlag (FLG_ALLGLOBALS)
1898 && (context_getFlag (FLG_GLOBUNSPEC)
1899 || context_hasGlobs ()));
1900}
1901
1902static bool context_checkUncheckedGlobals (void)
1903{
1904 return (FALSE);
1905}
1906
1907bool
1908context_checkExport (uentry e)
1909{
1910 if (!gc.anyExports) return FALSE;
1911
1912 if (uentry_isFunction (e)
1913 || (uentry_isVariable (e) && ctype_isFunction (uentry_getType (e))))
1914 {
1915 return context_maybeSet (FLG_EXPORTFCN);
1916 }
1917 else if (uentry_isExpandedMacro (e))
1918 {
1919 return context_maybeSet (FLG_EXPORTMACRO);
1920 }
1921 else if (uentry_isVariable (e))
1922 {
1923 return context_maybeSet (FLG_EXPORTVAR);
1924 }
1925 else if (uentry_isEitherConstant (e))
1926 {
1927 return context_maybeSet (FLG_EXPORTCONST);
1928 }
1929 else if (uentry_isIter (e) || uentry_isEndIter (e))
1930 {
1931 return context_maybeSet (FLG_EXPORTITER);
1932 }
1933 else if (uentry_isDatatype (e))
1934 {
1935 return context_maybeSet (FLG_EXPORTTYPE);
1936 }
1937 else
1938 {
1939 BADEXIT;
1940 }
1941}
1942
1943bool
1944context_checkGlobUse (uentry glob)
1945{
1946
1947 if (uentry_isCheckedStrict (glob))
1948 {
1949 return context_checkStrictGlobals ();
1950 }
1951 else if (uentry_isChecked (glob))
1952 {
1953 return context_checkCheckedGlobals ();
1954 }
1955 else if (uentry_isCheckedUnknown (glob) || uentry_isCheckMod (glob))
1956 {
1957 return context_checkUnknownGlobals ();
1958 }
1959 else
1960 {
1961 llassert (uentry_isUnchecked (glob));
1962
1963 return context_checkUncheckedGlobals ();
1964 }
1965}
1966
1967bool
1968context_checkAliasGlob (uentry glob)
1969{
1970 if (uentry_isCheckedStrict (glob))
1971 {
1972 return gc.flags[FLG_CHECKSTRICTGLOBALIAS];
1973 }
1974 else if (uentry_isChecked (glob))
1975 {
1976 return gc.flags[FLG_CHECKEDGLOBALIAS];
1977 }
1978 else if (uentry_isCheckMod (glob))
1979 {
1980 return gc.flags[FLG_CHECKMODGLOBALIAS];
1981 }
1982 else
1983 {
1984 llassert (uentry_isUnchecked (glob) || uentry_isCheckedUnknown (glob));
1985
1986 return gc.flags[FLG_UNCHECKEDGLOBALIAS];
1987 }
1988}
1989
1990bool context_checkInternalUse (void)
1991{
1992 if (context_hasGlobs ())
1993 {
1994 return (gc.flags[FLG_INTERNALGLOBS]);
1995 }
1996 else
1997 {
1998 return (gc.flags[FLG_INTERNALGLOBSNOGLOBS]);
1999 }
2000}
2001
2002bool
2003context_checkGlobMod (sRef el)
2004{
2005 uentry ue = sRef_getUentry (el);
2006
28bf4b0b 2007 /* no: llassert (sRef_isFileOrGlobalScope (el)); also check local statics */
616915dd 2008
2009 if (uentry_isCheckedModify (ue)
2010 || (!uentry_isUnchecked (ue) && (gc.flags[FLG_ALLGLOBALS])))
2011 {
2012 if (context_hasMods ())
2013 {
2014 return (gc.flags[FLG_MODGLOBS]);
2015 }
2016 else
2017 {
2018 if (uentry_isCheckedStrict (ue))
2019 {
2020 return (gc.flags[FLG_MODGLOBSUNSPEC]);
2021 }
2022 else
2023 {
2024 return (gc.flags[FLG_MODSTRICTGLOBSUNSPEC]);
2025 }
2026 }
2027 }
2028 else
2029 {
2030 if (context_hasMods ())
2031 {
2032 return (gc.flags[FLG_MODGLOBSUNCHECKED]);
2033 }
2034 else
2035 {
2036 return FALSE;
2037 }
2038 }
2039}
2040
2041void
28bf4b0b 2042context_usedGlobal (/*@exposed@*/ sRef el)
616915dd 2043{
2044 if (!globSet_member (gc.globs_used, el))
2045 {
2046 /*
2047 ** The first time a global is used in a function, we need
2048 ** to clear the derived sRefs, since they were set for the
2049 ** previous function.
2050 */
2051
2052 sRef_clearDerived (el);
2053 gc.globs_used = globSet_insert (gc.globs_used, el);
2054 }
2055}
2056
2057/*@observer@*/ sRefSet
2058context_modList (void)
2059{
2060 return gc.mods;
2061}
2062
2063bool
2064context_globAccess (sRef s)
2065{
28bf4b0b 2066 llassert (sRef_isFileOrGlobalScope (s) || sRef_isKindSpecial (s));
616915dd 2067 return (globSet_member (gc.globs, s));
2068}
2069
2070bool
2071context_hasAccess (typeId t)
2072{
2073 if (context_inFunctionLike ())
2074 {
28bf4b0b 2075 DPRINTF (("Access %d / %s",
2076 t, typeIdSet_unparse (gc.acct)));
616915dd 2077 return (typeIdSet_member (gc.acct, t));
2078 }
2079 else
2080 {
2081 return (context_hasFileAccess (t));
2082 }
2083}
2084
2085bool
2086context_hasFileAccess (typeId t)
2087{
2088 return (typeIdSet_member (gc.facct, t));
2089}
2090
2091/*@only@*/ cstring
2092context_unparseAccess (void)
2093{
2094 return (message ("%q / %q", typeIdSet_unparse (gc.acct),
2095 typeIdSet_unparse (gc.facct)));
2096}
2097
2098/*@only@*/ cstring
2099context_unparseClauses (void)
2100{
2101 return (clauseStack_unparse (gc.clauses));
2102}
2103
2104bool
2105context_couldHaveAccess (typeId t)
2106{
2107 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO)
2108 {
2109 return (typeIdSet_member (gc.acct, t));
2110 }
2111 else
2112 {
2113 return (typeIdSet_member (gc.facct, t));
2114 }
2115}
2116
2117ctype
2118context_getRetType (void)
2119{
2120 ctype f = ctype_undefined;
2121
2122 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
2123 {
2124 f = uentry_getType (gc.cont.fcn);
2125 }
2126 else if (gc.kind == CX_UNKNOWNMACRO)
2127 {
2128 return ctype_unknown;
2129 }
2130 else
2131 {
2132 llcontbuglit ("context_getRetType: not in a function context");
2133 return ctype_unknown;
2134 }
2135
2136 if (!ctype_isFunction (f))
2137 {
2138 if (ctype_isKnown (f))
2139 {
2140 llbuglit ("context_getRetType: not a function");
2141 }
2142
2143 return ctype_unknown;
2144 }
28bf4b0b 2145 return (ctype_getReturnType (f));
616915dd 2146}
2147
2148bool
2149context_hasMods (void)
2150{
2151 if (context_inFunctionLike ())
2152 {
2153 return (uentry_hasMods (gc.cont.fcn));
2154 }
2155 else
2156 {
2157 return FALSE;
2158 }
2159}
2160
2161void
2162context_exitAllClauses (void)
28bf4b0b 2163{
616915dd 2164 while (!clauseStack_isEmpty (gc.clauses))
2165 {
2166 clause el = clauseStack_top (gc.clauses);
616915dd 2167 gc.inclause = el;
2168
2169 if (clause_isNone (el))
2170 {
2171 usymtab_quietExitScope (g_currentloc);
2172 clauseStack_pop (gc.clauses);
2173 }
2174 else
2175 {
2176 context_exitClausePlain ();
2177 }
2178 }
2179
28bf4b0b 2180 clauseStack_clear (gc.clauses);
2181 gc.inclause = NOCLAUSE;
2182}
616915dd 2183
28bf4b0b 2184void
2185context_exitAllClausesQuiet (void)
2186{
2187 while (!clauseStack_isEmpty (gc.clauses))
2188 {
2189 clause el = clauseStack_top (gc.clauses);
2190 gc.inclause = el;
2191
2192 usymtab_quietExitScope (g_currentloc);
2193 clauseStack_pop (gc.clauses);
2194 }
2195
2196 clauseStack_clear (gc.clauses);
616915dd 2197 gc.inclause = NOCLAUSE;
2198}
2199
2200static
2201void context_exitClauseSimp (void)
2202{
2203
2204 context_setJustPopped ();
2205 clauseStack_pop (gc.clauses);
2206 gc.inclause = topClause (gc.clauses);
2207}
2208
2209static
2210void context_exitCaseClause (void)
2211{
2212 context_setJustPopped ();
2213 usymtab_popCaseBranch ();
2214 clauseStack_pop (gc.clauses);
2215 gc.inclause = topClause (gc.clauses);
2216}
2217
2218static
2219void context_exitClauseAux (exprNode pred, exprNode tbranch)
2220{
2221 context_setJustPopped ();
28bf4b0b 2222 /*@i32 was makeAlt */
616915dd 2223 usymtab_popTrueBranch (pred, tbranch, gc.inclause);
2224 clauseStack_pop (gc.clauses);
2225 gc.inclause = topClause (gc.clauses);
2226}
2227
2228void context_exitTrueClause (exprNode pred, exprNode tbranch)
2229{
28bf4b0b 2230 DPRINTF (("Exit true clause: %s", exprNode_unparse (tbranch)));
2231
616915dd 2232 if (gc.inclause != TRUECLAUSE)
2233 {
2234 llparseerror (cstring_makeLiteral
2235 ("Likely parse error. Conditional clauses are inconsistent."));
2236 return;
2237 }
28bf4b0b 2238
2239 context_setJustPopped ();
616915dd 2240 usymtab_popTrueBranch (pred, tbranch, TRUECLAUSE);
2241 clauseStack_pop (gc.clauses);
28bf4b0b 2242 gc.inclause = topClause (gc.clauses);
2243}
616915dd 2244
2245void context_exitIterClause (exprNode body)
2246{
2247 llassert (gc.inclause == ITERCLAUSE);
2248
2249 context_setJustPopped ();
2250
2251 if (context_getFlag (FLG_LOOPEXEC))
2252 {
2253 usymtab_popTrueExecBranch (exprNode_undefined, body, ITERCLAUSE);
2254 }
2255 else
2256 {
2257 usymtab_popTrueBranch (exprNode_undefined, body, ITERCLAUSE);
2258 }
2259
2260 clauseStack_pop (gc.clauses);
2261 gc.inclause = topClause (gc.clauses);
2262}
2263
2264static void context_popCase (void) {
2265 /*
2266 ** If we are exiting an outer clause, sometimes still in a switch case.
2267 **
2268 ** e.g.:
2269 **
2270 ** switch(a)
2271 ** {
2272 ** case 1:
2273 ** while (c>3)
2274 ** {
2275 ** case 3: ++c;
2276 ** }
2277 ** }
2278 */
2279
2280 DPRINTF (("Popping case clause: %s",
2281 clauseStack_unparse (gc.clauses)));
28bf4b0b 2282
616915dd 2283 if (gc.inclause == CASECLAUSE) {
2284 context_exitCaseClause ();
2285 }
2286}
2287
2288void context_exitWhileClause (exprNode pred, exprNode body)
2289{
2290 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2291
2292 context_popCase ();
2293
2294 if (gc.inclause != WHILECLAUSE) {
2295 DPRINTF (("Clause: %s / %s", clause_unparse (gc.inclause),
2296 clauseStack_unparse (gc.clauses)));
2297 }
2298
2299 llassert (gc.inclause == WHILECLAUSE);
2300
2301 context_setJustPopped ();
2302
2303
2304 /*
2305 ** predicate must be false after while loop (unless there are breaks)
2306 */
2307
2308 if (context_getFlag (FLG_LOOPEXEC))
2309 {
2310 usymtab_popTrueExecBranch (pred, body, WHILECLAUSE);
2311 }
2312 else
2313 {
2314 usymtab_popTrueBranch (pred, body, WHILECLAUSE);
2315 }
2316
2317
2318 usymtab_addGuards (invGuards);
2319 guardSet_free (invGuards);
2320
2321 clauseStack_pop (gc.clauses);
2322 gc.inclause = topClause (gc.clauses);
2323}
2324
2325void context_exitDoWhileClause (exprNode pred)
2326{
2327 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2328
2329 if (gc.inclause == CASECLAUSE) {
2330 /* handle Duff's device */
2331 clauseStack_pop (gc.clauses);
2332 gc.inclause = topClause (gc.clauses);
2333 }
2334
2335 llassert (gc.inclause == DOWHILECLAUSE);
2336
2337 context_setJustPopped ();
2338
2339
2340 usymtab_addGuards (invGuards);
2341 guardSet_free (invGuards);
2342
2343 clauseStack_pop (gc.clauses);
2344 gc.inclause = topClause (gc.clauses);
2345}
2346
2347void context_exitForClause (exprNode forPred, exprNode body)
2348{
2349 guardSet invGuards = guardSet_invert (exprNode_getForGuards (forPred));
2350
2351 llassert (gc.inclause == FORCLAUSE);
2352 context_setJustPopped ();
2353
2354 /*
2355 ** predicate must be false after while loop (unless there are breaks)
2356 */
2357
2358 if (context_getFlag (FLG_LOOPEXEC))
2359 {
28bf4b0b 2360 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
616915dd 2361 }
2362 else
2363 {
2364 usymtab_popTrueBranch (forPred, body, FORCLAUSE);
2365 }
2366
2367 usymtab_addGuards (invGuards);
2368 guardSet_free (invGuards);
2369 clauseStack_pop (gc.clauses);
2370 gc.inclause = topClause (gc.clauses);
2371}
2372
2373static void context_exitClausePlain (void)
2374{
2375 llassert (gc.inclause != NOCLAUSE);
2376
2377 if (gc.inclause == FALSECLAUSE)
2378 {
2379 context_exitClause (exprNode_undefined, exprNode_undefined, exprNode_undefined);
2380 }
2381 else
2382 {
2383 context_exitClauseAux (exprNode_undefined, exprNode_undefined);
2384 }
616915dd 2385}
2386
2387void context_exitClause (exprNode pred, exprNode tbranch, exprNode fbranch)
2388{
616915dd 2389 context_setJustPopped ();
28bf4b0b 2390
616915dd 2391 if (gc.inclause == FALSECLAUSE)
2392 {
2393 usymtab_popBranches (pred, tbranch, fbranch, FALSE, FALSECLAUSE);
28bf4b0b 2394
616915dd 2395 llassert (clauseStack_top (gc.clauses) == FALSECLAUSE);
2396
2397 clauseStack_pop (gc.clauses);
2398 gc.inclause = topClause (gc.clauses);
2399 }
2400 else
2401 {
28bf4b0b 2402 context_exitTrueClause (pred, tbranch);
616915dd 2403 }
2404}
2405
2406void
2407context_returnFunction (void)
2408{
2409 usymtab_checkFinalScope (TRUE);
2410}
2411
2412void
2413context_exitFunction (void)
2414{
b7e84605 2415 DPRINTF (("Exit function: %s", context_unparse ()));
2416
616915dd 2417 if (!context_inFunction () && !context_inMacroConstant ()
b7e84605 2418 && !context_inUnknownMacro ()
616915dd 2419 && !context_inIterDef () && !context_inIterEnd ())
2420 {
2421 /*
2422 ** not a bug because of parse errors
2423 */
b7e84605 2424
2425 BADBRANCH;
616915dd 2426 }
2427 else
2428 {
2429 if (context_inMacro () && usymtab_inFunctionScope ())
2430 {
2431 usymtab_exitScope (exprNode_undefined);
2432 }
2433
2434 if (uentry_hasGlobs (gc.cont.fcn))
2435 {
2436 exprChecks_checkUsedGlobs (gc.globs, gc.globs_used);
2437 }
2438
2439
2440 if (uentry_hasMods (gc.cont.fcn))
2441 {
2442 if (context_getFlag (FLG_MUSTMOD))
2443 {
2444 exprNode_checkAllMods (gc.mods, gc.cont.fcn);
2445 }
2446 }
2447
28bf4b0b 2448 DPRINTF (("Exit function: %s", uentry_unparse (gc.cont.fcn)));
2449
616915dd 2450 /*
2451 ** clear file static modifies
2452 */
2453
2454 /* do this first to get unused error messages */
2455
2456 usymtab_exitScope (exprNode_undefined);
2457 sRef_exitFunctionScope ();
2458
2459 gc.showfunction = FALSE;
2460 gc.kind = CX_GLOBAL;
2461 gc.cont.glob = TRUE;
2462 gc.acct = gc.facct;
2463 gc.globs = globSet_new ();
2464 globSet_clear (gc.globs_used);
2465 gc.mods = sRefSet_new ();
2466 }
2467
2468 llassert (clauseStack_isEmpty (gc.clauses));
2469 llassert (gc.inclause == NOCLAUSE);
b7e84605 2470 DPRINTF (("After exit function: %s", context_unparse ()));
616915dd 2471}
2472
2473void
2474context_quietExitFunction (void)
2475{
2476 while (gc.kind == CX_INNER)
2477 {
2478 context_exitInnerPlain ();
2479 }
2480
b7e84605 2481 if (!context_inFunction () && !context_inMacroConstant () && !context_inUnknownMacro ()
616915dd 2482 && !context_inIterDef () && !context_inIterEnd ())
2483 {
2484 }
2485 else
2486 {
2487 usymtab_quietExitScope (g_currentloc);
2488
2489 gc.showfunction = FALSE;
2490 gc.kind = CX_GLOBAL;
2491 gc.cont.glob = TRUE;
2492 gc.acct = gc.facct;
2493 gc.globs = globSet_new ();
2494 globSet_clear (gc.globs_used);
2495 gc.mods = sRefSet_new ();
2496
2497 sRef_exitFunctionScope ();
2498 }
2499}
2500
2501/*@observer@*/ uentryList
2502context_getParams (void)
2503{
2504 if (context_inFunctionLike ())
2505 {
2506 return (uentry_getParams (gc.cont.fcn));
2507 }
2508 else
2509 {
2510 llcontbug (message ("context_getParams: not in function: %q", context_unparse ()));
2511 return uentryList_undefined;
2512 }
2513}
2514
2515/*@observer@*/ globSet
2516context_getUsedGlobs (void)
2517{
2518 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2519 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2520
2521 return (gc.globs_used);
2522}
2523
2524cstring
2525context_moduleName ()
2526{
2527 return (fileloc_getBase (g_currentloc));
2528}
2529
2530/*@observer@*/ globSet
2531context_getGlobs (void)
2532{
2533 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2534 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2535
2536 return (gc.globs);
2537}
2538
2539void
2540context_addBoolAccess (void)
2541{
2542 cstring bname = context_getString (FLG_BOOLTYPE);
2543 typeIdSet boolt = typeIdSet_single (usymtab_getTypeId (bname));
2544
2545 addModuleAccess (cstring_copy (bname), boolt);
2546
2547 /* for sys/types (perhaps, this is bogus!) */
2548 addModuleAccess (cstring_makeLiteral ("types"), boolt);
2549}
2550
2551# if 0
2552bool
2553context_canAccessBool (void)
2554{
2555 return TRUE;
2556}
2557# endif
2558
2559/*
2560 static typeId boolType = typeId_invalid;
2561
2562 if (typeId_isInvalid (boolType))
2563 {
2564 boolType = usymtab_getTypeId (context_getBoolName ());
2565 }
2566
2567 if (typeId_isInvalid (boolType)) {
2568 return FALSE;
2569 } else {
2570 return (typeIdSet_member (gc.acct, boolType));
2571 }
2572}
2573*/
2574
2575/* evs 2000-07-25: old version - replaced */
2576
2577ctype
2578context_boolImplementationType () {
2579 /* For now, this is bogus! */
2580 return ctype_int;
2581}
2582
2583bool
2584context_canAccessBool (void)
2585{
2586 static typeId boolType = typeId_invalid;
2587
2588 if (typeId_isInvalid (boolType))
2589 {
2590 boolType = usymtab_getTypeId (context_getBoolName ());
2591 }
2592
2593 if (!typeId_isInvalid (boolType))
2594 {
2595 return context_hasAccess (boolType);
2596 }
2597 else
2598 {
2599 ;
2600 }
2601
2602 return FALSE;
2603}
2604
2605void
2606context_setMessageAnnote (/*@only@*/ cstring s)
2607{
2608 llassert (cstring_isUndefined (gc.msgAnnote));
2609 gc.msgAnnote = s;
2610}
2611
2612bool
2613context_hasMessageAnnote (void)
2614{
2615 return (cstring_isDefined (gc.msgAnnote));
2616}
2617
2618void
2619context_clearMessageAnnote (void)
2620{
2621 if (cstring_isDefined (gc.msgAnnote))
2622 {
2623 cstring_free (gc.msgAnnote);
2624 gc.msgAnnote = cstring_undefined;
2625 }
2626}
2627
2628/*@only@*/ cstring
2629context_getMessageAnnote (void)
2630{
2631 cstring st = gc.msgAnnote;
2632
2633 gc.msgAnnote = cstring_undefined;
2634 return st;
2635}
2636
2637void
2638context_setAliasAnnote (/*@observer@*/ sRef s, /*@observer@*/ sRef t)
2639{
2640 llassert (sRef_isInvalid (gc.aliasAnnote));
2641 llassert (!sRef_sameName (s, t));
2642 gc.aliasAnnote = s;
2643 gc.aliasAnnoteAls = t;
2644}
2645
2646bool
2647context_hasAliasAnnote (void)
2648{
2649 return (sRef_isValid (gc.aliasAnnote));
2650}
2651
2652void
2653context_clearAliasAnnote (void)
2654{
2655 gc.aliasAnnote = sRef_undefined;
2656}
2657
2658cstring
2659context_getAliasAnnote (void)
2660{
2661 sRef ret = gc.aliasAnnote;
2662 sRef als = gc.aliasAnnoteAls;
2663
2664 llassert (sRef_isValid (ret) && sRef_isValid (als));
2665
2666 gc.aliasAnnote = sRef_undefined;
2667 return (message ("%q aliases %q", sRef_unparse (als), sRef_unparse (ret)));
2668}
2669
2670void
2671context_recordFileModifies (sRefSet mods)
2672{
28bf4b0b 2673 gc.modrecs = sRefSetList_add (gc.modrecs, mods);
616915dd 2674}
2675
2676void
2677context_recordFileGlobals (globSet mods)
2678{
28bf4b0b 2679 DPRINTF (("Recording file globals: %s", globSet_unparse (mods)));
2680 /*@access globSet@*/ context_recordFileModifies (mods); /*@noaccess globSet@*/
616915dd 2681}
2682
2683void
2684context_setCommentMarkerChar (char c)
2685{
2686 llassert (c != '\0');
2687
2688 context_setValue (FLG_COMMENTCHAR, (int) c);
2689}
2690
2691char
2692context_getCommentMarkerChar (void)
2693{
2694 return ((char) context_getValue (FLG_COMMENTCHAR));
2695}
2696
2697static void
2698context_setValue (flagcode flag, int val)
2699{
2700 int index = flagcode_valueIndex (flag);
2701
2702 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2703
28bf4b0b 2704 switch (flag)
616915dd 2705 {
28bf4b0b 2706 case FLG_LINELEN:
2707 if (val <= 0)
616915dd 2708 {
28bf4b0b 2709
abb1cb43 2710 llerror_flagWarning (message ("Value for %s must be a positive "
2711 "number (given %d)",
2712 flagcode_unparse (flag), val));
616915dd 2713 return;
616915dd 2714 }
28bf4b0b 2715 if (flag == FLG_LINELEN && val < MINLINELEN)
2716 {
abb1cb43 2717 llerror_flagWarning (message ("Value for %s must be at least %d (given %d)",
2718 flagcode_unparse (flag),
2719 MINLINELEN, val));
28bf4b0b 2720 val = MINLINELEN;
2721 }
2722 break;
616915dd 2723
28bf4b0b 2724 case FLG_INCLUDENEST:
2725 case FLG_CONTROLNESTDEPTH:
2726 case FLG_STRINGLITERALLEN:
2727 case FLG_NUMSTRUCTFIELDS:
2728 case FLG_NUMENUMMEMBERS:
2729 case FLG_INDENTSPACES:
2730 if (val < 0)
2731 {
2732
abb1cb43 2733 llerror_flagWarning (message ("Value for %s must be a non-negative "
2734 "number (given %d)",
2735 flagcode_unparse (flag), val));
28bf4b0b 2736 return;
2737 }
616915dd 2738
28bf4b0b 2739 break;
2740 default:
2741 break;
2742 }
2743
2744 gc.values[index] = val;
616915dd 2745}
2746
2747void
2748context_setValueAndFlag (flagcode flag, int val)
2749{
2750 gc.flags[flag] = TRUE;
2751 context_setValue (flag, val);
2752}
2753
2754int
2755context_getValue (flagcode flag)
2756{
2757 int index = flagcode_valueIndex (flag);
2758
2759 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2760 return (gc.values[index]);
2761}
2762
2763int
2764context_getCounter (flagcode flag)
2765{
2766 int index = flagcode_valueIndex (flag);
2767
2768 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2769 return (gc.counters[index]);
2770}
2771
2772void
2773context_incCounter (flagcode flag)
2774{
2775 int index = flagcode_valueIndex (flag);
2776
2777 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2778 /* check limit */
2779 gc.counters[index]++;
2780}
2781
2782void
2783context_decCounter (flagcode flag)
2784{
2785 int index = flagcode_valueIndex (flag);
2786
2787 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2788 gc.counters[index]--;
2789}
2790
2791bool context_showFunction (void)
2792{
2793 return (gc.showfunction);
2794}
2795
2796void
2797context_setString (flagcode flag, cstring val)
2798{
2799 int index = flagcode_stringIndex (flag);
2800
2801 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2802
2803 if (flag == FLG_SYSTEMDIRS)
2804 {
2805 llassert (cstring_isDefined (val));
2806
2807 if (cstring_firstChar (val) == '\"')
2808 {
2809 cstring oval = val;
2810 cstring tval = cstring_copy (cstring_suffix (val, 1));
2811
2812 if (cstring_lastChar (tval) != '\"')
2813 {
2814 int n = cstring_length (tval) - 1;
2815
2816 while (isspace ((int) cstring_getChar (tval, n)))
2817 {
2818 n--;
2819 }
2820
2821 if (cstring_getChar (tval, n) != '\"')
2822 {
abb1cb43 2823 llerror_flagWarning (message ("Setting -systemdirs to string with unmatching quotes: %s", val));
616915dd 2824 }
2825 else
2826 {
2827 cstring otval = tval;
2828 tval = cstring_prefix (tval, n);
2829 cstring_free (otval);
2830 }
2831 }
2832
2833 val = cstring_copy (cstring_clip (tval, cstring_length (tval) - 1));
2834 DPRINTF (("val = %s", val));
2835 cstring_free (tval);
2836 cstring_free (oval);
2837 }
2838 }
2839
2840 if (flag == FLG_TMPDIR)
2841 {
2842 llassert (cstring_isDefined (val));
2843
2844 if (cstring_length (val) == 0)
2845 {
2846 cstring_free (val);
2847 val = message (".%s", cstring_makeLiteralTemp (CONNECTSTR));
2848 }
2849 else if (cstring_lastChar (val) != CONNECTCHAR)
2850 {
2851 val = cstring_appendChar (val, CONNECTCHAR);
2852 }
2853 else
2854 {
2855 ;
2856 }
2857 }
2858
2859 if (cstring_length (val) >= 1
ee229125 2860 && cstring_firstChar (val) == '\"')
616915dd 2861 {
abb1cb43 2862 llerror_flagWarning (message
2863 ("setting %s to string beginning with \". You probably "
2864 "don't meant to have the \"'s.",
2865 flagcode_unparse (flag)));
616915dd 2866 }
2867
2868 if (flag == FLG_BOOLTYPE)
2869 {
2870
2871 }
2872
2873 gc.strings[index] = val;
2874}
2875
2876static /*@exposed@*/ cstring
2877context_exposeString (flagcode flag)
2878{
2879 int index = flagcode_stringIndex (flag);
2880
2881 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2882 return (gc.strings[index]);
2883}
2884
2885cstring
2886context_getString (flagcode flag)
2887{
2888 return (context_exposeString (flag));
2889}
2890
2891void
2892context_resetErrors (void)
2893{
2894 gc.numerrors = 0;
2895}
2896
2897void context_initMod (void)
2898 /*@globals undef gc; @*/
2899{
2900 gc.kind = CX_GLOBAL;
b7e84605 2901
28bf4b0b 2902 gc.savekind = CX_ERROR;
b7e84605 2903 gc.savecont.glob = FALSE;
2904
616915dd 2905 gc.instandardlib = FALSE;
2906 gc.numerrors = 0;
2907 gc.neednl = FALSE;
2908 gc.linesprocessed = 0;
2909 gc.speclinesprocessed = 0;
2910 gc.insuppressregion = FALSE;
2911 gc.macroMissingParams = FALSE;
2912 gc.preprocessing = FALSE;
2913 gc.incommandline = FALSE;
2914 gc.mc = macrocache_create ();
2915 gc.nmods = 0;
2916 gc.maxmods = DEFAULTMAXMODS;
28bf4b0b 2917 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
2918
616915dd 2919 gc.library = FLG_ANSILIB;
2920
2921 gc.locstack = filelocStack_new ();
2922 gc.modrecs = sRefSetList_undefined;
2923 gc.anyExports = FALSE;
2924
2925 gc.ftab = fileTable_create ();
2926 gc.msgLog = messageLog_new ();
2927 gc.inimport = FALSE;
2928 gc.inDerivedFile = FALSE;
2929 gc.inheader = FALSE;
2930 gc.markers = flagMarkerList_new ();
2931 gc.cont.glob = TRUE;
2932 gc.showfunction = FALSE;
2933 gc.msgAnnote = cstring_undefined;
2934 gc.aliasAnnote = sRef_undefined;
2935 gc.aliasAnnoteAls = sRef_undefined;
2936 gc.boolType = ctype_bool;
2937 gc.mods = sRefSet_new ();
2938
2939 gc.saveloc = fileloc_undefined;
2940
2941 gc.inmacrocache = FALSE;
2942 gc.inclause = NOCLAUSE;
2943 gc.clauses = clauseStack_new ();
2944 gc.globs = globSet_new ();
2945 gc.nacct = typeIdSet_emptySet ();
2946 gc.acct = typeIdSet_emptySet ();
2947 gc.facct = typeIdSet_emptySet ();
2948 gc.savedFlags = FALSE;
2949 gc.pushloc = fileloc_undefined;
2950 gc.protectVars = FALSE;
2951 gc.justpopped = FALSE;
2952 gc.isNullGuarded = NO;
2953 gc.globs_used = globSet_undefined;
2954
2955 allFlagCodes (code)
2956 {
2957 gc.setGlobally[code] = FALSE;
2958 gc.setLocally[code] = FALSE;
2959 } end_allFlagCodes ;
2960
2961 usymtab_initMod ();
2962
2963 context_resetAllFlags ();
3120b462 2964 assertSet (gc.flags); /* Can't use global in defines */
2965 assertSet (gc.saveflags);
2966 assertSet (gc.values);
2967 assertSet (gc.strings);
2968
616915dd 2969 conext_resetAllCounters ();
3120b462 2970 assertSet (gc.counters);
2971
616915dd 2972 context_setMode (DEFAULT_MODE);
28bf4b0b 2973
2974 gc.stateTable = metaStateTable_create ();
2975 gc.annotTable = annotationTable_create ();
2976
d9a28762 2977 gc.inFunctionHeader = FALSE;
2978
28bf4b0b 2979 DPRINTF (("Annotations: \n%s",
2980 cstring_toCharsSafe (annotationTable_unparse (gc.annotTable))));
2981 DPRINTF (("State: \n%s",
2982 cstring_toCharsSafe (metaStateTable_unparse (gc.stateTable))));
2983
616915dd 2984}
2985
2986ctype
2987context_typeofZero (void)
2988{
2989 ctype ct = ctype_int;
2990
2991 if (context_getFlag (FLG_ZEROPTR))
2992 {
2993 ct = ctype_makeConj (ct, ctype_voidPointer);
2994 }
2995
2996 if (context_getFlag (FLG_ZEROBOOL)) {
2997 ct = ctype_makeConj (ct, ctype_bool);
2998 }
2999
3000 return ct;
3001}
3002
3003ctype
3004context_typeofOne (void)
3005{
3006 ctype ct = ctype_int;
3007
3008 /* 1 is on longer a bool (was before 2.4)
3009 if (!context_getFlag (FLG_ABSTRACTBOOL))
3010 {
3011 ct = ctype_makeConj (ct, ctype_bool);
3012 }
3013 */
3014
3015 return (ct);
3016}
3017
3018/*@only@*/ cstring
3019context_unparse (void)
3020{
3021 cstring s;
3022
3023 switch (gc.kind)
3024 {
3025 case CX_LCL:
3026 s = message ("LCL File: %q", fileloc_unparse (g_currentloc));
3027 break;
3028 case CX_LCLLIB:
3029 s = message ("LCL Lib File: %q", fileloc_unparse (g_currentloc));
3030 break;
3031 case CX_GLOBAL:
3032 s = message ("Global Context:%q", fileloc_unparse (g_currentloc));
3033 break;
3034 case CX_INNER:
b7e84605 3035 s = message ("Inner Context [%d] : %q",
3036 gc.cont.cdepth,
3037 fileloc_unparse (g_currentloc));
616915dd 3038 break;
3039 case CX_FUNCTION:
3040 s = message ("Function %q :%q \n\taccess %q\n\tmodifies %q",
3041 uentry_unparse (gc.cont.fcn),
3042 fileloc_unparse (g_currentloc),
3043 typeIdSet_unparse (gc.acct),
3044 sRefSet_unparse (gc.mods));
3045 break;
3046 case CX_MACROFCN:
3047 s = message ("Function Macro %q", uentry_unparse (gc.cont.fcn));
3048 break;
3049 case CX_UNKNOWNMACRO:
3050 s = message ("Forward Specified Macro %q", uentry_unparse (gc.cont.fcn));
3051 break;
3052 case CX_MACROCONST:
3053 s = message ("Constant Macro %q", uentry_unparse (gc.cont.fcn));
3054 break;
3055 case CX_ITERDEF:
3056 s = message ("Iter definition %q", uentry_unparse (gc.cont.fcn));
3057 break;
3058 case CX_ITEREND:
3059 s = message ("Iter end %q", uentry_unparse (gc.cont.fcn));
3060 break;
b7e84605 3061 case CX_FCNDECLARATION:
3062 s = message ("Function declaration %q", uentry_unparse (gc.cont.fcn));
3063 break;
616915dd 3064 default:
3065 s = message ("Un-unparseable context: %d", (int) gc.kind);
3066 break;
3067 }
3068
3069 s = message ("%q\naccess: %q", s, context_unparseAccess ());
3070 return (s);
3071}
3072
3073extern ctype
3074context_currentFunctionType (void)
3075{
3076 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
3077 {
3078 return (uentry_getType (gc.cont.fcn));
3079 }
3080 else if (gc.kind == CX_INNER)
3081 {
3082 llcontbuglit ("context_currentFunctionType: inner context");
3083 do { context_exitInnerPlain (); } while (gc.kind == CX_INNER);
3084 return (context_currentFunctionType ());
3085 }
3086 else
3087 {
3088 llcontbuglit ("context_currentFunctionType: not in function");
3089 return (ctype_undefined);
3090 }
3091}
3092
3093void
3094context_enterInnerContext (void)
3095{
b7e84605 3096 if (context_getFlag (FLG_GRAMMAR))
3097 {
3098 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3099 }
3100
616915dd 3101 if (gc.kind == CX_GLOBAL)
3102 {
3103 gc.kind = CX_INNER;
3104 gc.cont.cdepth = 1;
3105 }
3106 else if (gc.kind == CX_INNER)
3107 {
3108 gc.cont.cdepth++;
3109 }
3110 else
3111 {
3112 ;
3113 }
3114
616915dd 3115 usymtab_enterScope ();
3116 pushClause (NOCLAUSE);
3117}
3118
3119void
3120context_exitInnerPlain (void) /*@modifies gc;@*/
3121{
3122 context_exitInner (exprNode_undefined);
3123}
3124
3125void
3126context_exitInner (exprNode exp)
3127{
b7e84605 3128 if (context_getFlag (FLG_GRAMMAR))
3129 {
3130 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3131 }
3132
616915dd 3133 llassertprint (gc.inclause == NOCLAUSE || gc.inclause == CASECLAUSE,
3134 ("inclause = %s", clause_nameTaken (gc.inclause)));
3135
3136 clauseStack_removeFirst (gc.clauses, NOCLAUSE);
3137 gc.inclause = topClause (gc.clauses);
3138
3139 if (gc.kind == CX_INNER)
3140 {
3141 if (--gc.cont.cdepth == 0)
3142 {
3143 gc.kind = CX_GLOBAL;
3144 gc.cont.glob = TRUE;
3145 }
3146 }
3147 else
3148 {
3149 if (gc.kind == CX_GLOBAL)
3150 {
3151 llcontbuglit ("Attempt to exit global context");
3152 return;
3153 }
3154 }
3155
3156 usymtab_exitScope (exp);
3157}
3158
3159
3160void
3161context_enterStructInnerContext (void)
3162{
b7e84605 3163 if (context_getFlag (FLG_GRAMMAR))
3164 {
3165 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3166 }
3167
616915dd 3168 if (gc.kind == CX_GLOBAL)
3169 {
3170 gc.kind = CX_INNER;
3171 gc.cont.cdepth = 1;
3172 }
3173 else if (gc.kind == CX_INNER)
3174 {
3175 gc.cont.cdepth++;
3176 }
3177 else
3178 {
3179 ;
3180 }
3181
3182 usymtab_enterScope ();
b7e84605 3183
3184 if (context_getFlag (FLG_GRAMMAR))
3185 {
3186 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3187 }
616915dd 3188}
3189
3190void
3191context_exitStructInnerContext (void)
3192{
b7e84605 3193 if (context_getFlag (FLG_GRAMMAR))
3194 {
3195 lldiagmsg (message ("Exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3196 }
3197
616915dd 3198 if (gc.kind == CX_INNER)
3199 {
b7e84605 3200 if (gc.cont.cdepth <= 0)
616915dd 3201 {
b7e84605 3202 llcontbuglit ("Attempt to exit inner context with no depth");
616915dd 3203 gc.kind = CX_GLOBAL;
3204 gc.cont.glob = TRUE;
b7e84605 3205 gc.cont.cdepth = 0;
616915dd 3206 }
b7e84605 3207 else {
3208 gc.cont.cdepth--;
3209
3210 if (gc.cont.cdepth == 0)
3211 {
3212 gc.kind = CX_GLOBAL;
3213 gc.cont.glob = TRUE;
3214 }
3215 }
616915dd 3216 }
3217 else
3218 {
3219 if (gc.kind == CX_GLOBAL)
3220 {
3221 llcontbuglit ("Attempt to exit global context");
3222 return;
3223 }
3224 }
3225
3226 usymtab_exitScope (exprNode_undefined);
b7e84605 3227
3228 if (context_getFlag (FLG_GRAMMAR))
3229 {
3230 lldiagmsg (message ("After exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3231 }
616915dd 3232}
3233
3234void
3235context_exitInnerSafe (void)
3236{
b7e84605 3237 if (context_getFlag (FLG_GRAMMAR))
3238 {
3239 lldiagmsg (message ("Exit inner safe: %q", context_unparse ()));
3240 }
3241
616915dd 3242 if (gc.kind == CX_INNER)
3243 {
b7e84605 3244 if (--gc.cont.cdepth <= 0)
616915dd 3245 {
b7e84605 3246 gc.cont.cdepth = 0;
616915dd 3247 }
3248 }
3249 else if (gc.kind == CX_GLOBAL)
3250 {
3251 llcontbuglit ("Attempt to exit global context");
3252 return;
3253 }
3254 else
3255 {
3256 if (usymtab_inDeepScope ())
3257 {
3258 usymtab_exitScope (exprNode_undefined);
3259 }
3260 }
3261}
3262
3263static
3264void setModuleAccess (void)
3265{
3266 gc.facct = typeIdSet_emptySet ();
3267
3268 if (fileId_isValid (currentFile ()))
3269 {
3270 cstring baseName = fileloc_getBase (g_currentloc);
3271
3272 if (context_getFlag (FLG_ACCESSFILE))
3273 {
3274 if (usymtab_existsType (baseName))
3275 {
3276 gc.facct = typeIdSet_insert (gc.facct,
3277 usymtab_getTypeId (baseName));
3278 }
3279 else
3280 {
3281 ;
3282 }
3283 }
3284
3285 if (context_getFlag (FLG_ACCESSMODULE))
3286 {
3287 int i;
3288 bool hasaccess = FALSE;
3289
3290 for (i = 0; i < gc.nmods; i++)
3291 {
3292 if (cstring_equal (baseName, gc.moduleaccess[i].file))
3293 {
3294 gc.facct = typeIdSet_union (gc.facct, gc.moduleaccess[i].daccess);
3295
3296 hasaccess = TRUE;
3297 break;
3298 }
3299 }
3300 }
3301
3302 gc.acct = gc.facct;
3303 gc.inheader = fileId_isHeader (currentFile ());
3304 }
3305 else
3306 {
3307 llcontbuglit ("Current file not defined\n");
3308 gc.facct = typeIdSet_emptySet ();
3309 gc.acct = gc.facct;
3310 gc.inheader = FALSE;
3311 }
3312
3313 /* 17 Jan 1995: forgot to clear nacct */
3314
3315 gc.nacct = typeIdSet_emptySet ();
3316}
3317
3318static void
3319context_enterFileAux (void)
3320{
3321 setModuleAccess ();
3322}
3323
3324void
3325context_enterFile (void)
3326{
3327 context_enterFileAux ();
3328 usymtab_enterFile ();
3329}
3330
3331void
3332context_enterMacroFile (void)
3333{
3334 context_enterFileAux ();
3335}
3336
3337bool
3338context_inFunction (void)
3339{
3340 kcontext ck = gc.kind;
3341
3342 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN) || (ck == CX_INNER));
3343}
3344
3345bool
3346context_inFunctionLike (void)
3347{
3348 return (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
28bf4b0b 3349 || gc.kind == CX_FCNDECLARATION
616915dd 3350 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
3351}
3352
3353bool
3354context_inRealFunction (void)
3355{
3356 kcontext ck = gc.kind;
3357
3358 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN));
3359}
3360
3361void
3362context_processAllMacros (void)
3363{
3364 usymtab_enterFile ();
3365
3366 gc.inmacrocache = TRUE;
3367 macrocache_processUndefinedElements (gc.mc);
3368 cleanupMessages ();
3369 usymtab_exitFile ();
3370
3371 gc.inmacrocache = FALSE;
3372 macrocache_finalize ();
3373}
3374
3375/*
3376** this happens once at the end of each C file
3377**
3378** check each Macro that was defined in current file.c or current file.h
3379**
3380*/
3381
3382static void
3383context_processMacros (void)
3384{
3385 if (fileId_isValid (currentFile ()))
3386 {
3387 fileloc lastfl;
28bf4b0b 3388 cstring cbase = fileLib_removePathFree (fileLib_removeAnyExtension (fileName (currentFile ())));
616915dd 3389
3390 gc.inmacrocache = TRUE;
3391
3392 DPRINTF (("Processing macros: %s", cbase));
3393 lastfl = macrocache_processFileElements (gc.mc, cbase);
3394 DPRINTF (("Processing macros: %s", fileloc_unparse (lastfl)));
3395
3396 cstring_free (cbase);
3397
3398 if (fileloc_isDefined (lastfl))
3399 {
3400 g_currentloc = fileloc_update (g_currentloc, lastfl);
3401 cleanupMessages ();
3402 }
3403
3404 gc.inmacrocache = FALSE;
3405 }
3406}
3407
3408bool
3409context_processingMacros (void)
3410{
3411 return (gc.inmacrocache);
3412}
3413
3414void
28bf4b0b 3415context_exitCFile (void)
616915dd 3416{
3417 if (gc.kind != CX_GLOBAL)
3418 {
3419 llfatalerrorLoc
3420 (cstring_makeLiteral ("File ended outside global scope"));
3421 }
3422
3423 if (gc.insuppressregion)
3424 {
3425 /* gack...don't reverse the order of these lines! ;-> */
3426 gc.insuppressregion = FALSE;
3427 llerrorlit (FLG_SYNTAX,
3428 "File ended in ignore errors region, "
3429 "possible missing /*@end*/");
3430 }
3431
3432 /* fix up parse errors */
3433
3434 while (!usymtab_inFileScope ())
3435 {
3436 usymtab_quietExitScope (g_currentloc);
3437 }
3438
3439 /*
3440 ** Clear the file-specific modifies information.
3441 */
3442
3443 sRefSetList_elements (gc.modrecs, mods)
3444 {
3445 sRefSet_clearStatics (mods);
28bf4b0b 3446 } end_sRefSetList_elements ;
616915dd 3447
3448 sRefSetList_clear (gc.modrecs);
28bf4b0b 3449
616915dd 3450 context_processMacros ();
3451 cleanupMessages ();
28bf4b0b 3452
616915dd 3453 usymtab_exitFile ();
28bf4b0b 3454
616915dd 3455 gc.inDerivedFile = FALSE;
3456 filelocStack_clear (gc.locstack);
28bf4b0b 3457
616915dd 3458 gc.nacct = typeIdSet_emptySet (); /* empty noaccess */
28bf4b0b 3459
616915dd 3460 gc.cont.glob = TRUE;
3461
3462 if (gc.savedFlags)
3463 {
3464 context_restoreFlagSettings ();
3465 gc.savedFlags = FALSE;
3466 }
28bf4b0b 3467
3468 /*
3469 DPRINTF (("After exiting file: "));
3470 usymtab_printAll ();
3471 */
616915dd 3472}
3473
3474void
3475context_exitMacroCache (void)
3476{
3477 if (gc.kind != CX_GLOBAL)
3478 {
28bf4b0b 3479 if (context_inMacro ())
3480 /* this is okay, file could end without newline in macro */
616915dd 3481 {
28bf4b0b 3482 DPRINTF (("Still in macro: %s",
3483 context_unparse ()));
616915dd 3484 context_exitFunction ();
3485 }
3486 else
3487 {
3488 llcontbug (message ("context_exitMacroCache: outside global scope: %q",
3489 context_unparse ()));
3490 gc.kind = CX_GLOBAL;
3491 }
3492 }
3493
3494 /*
3495 ** no longer valid here
3496 ** if (gc.insuppressregion)
3497 ** {
3498 ** gc.insuppressregion = FALSE;
3499 ** llerror ("File ended in ignore errors region, possible missing @");
3500 ** }
3501 */
3502
3503 gc.cont.glob = TRUE;
3504}
3505
3506void
3507context_saveLocation (void)
3508{
3509 /* was llassert (fileloc_isUndefined (gc.saveloc)) */
6970c11b 3510 fileloc_free (gc.saveloc);
616915dd 3511 gc.saveloc = fileloc_copy (g_currentloc);
6970c11b 3512}
616915dd 3513
3514fileloc
3515context_getSaveLocation (void)
3516{
3517 fileloc fl = gc.saveloc;
6970c11b 3518 gc.saveloc = fileloc_undefined;
616915dd 3519 return fl;
3520}
3521
3522/*@observer@*/ cstring
3523context_inFunctionName (void)
3524{
3525 if (gc.kind == CX_FUNCTION
3526 || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO
3527 || gc.kind == CX_MACROCONST
3528 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND)
3529 {
3530 return (uentry_rawName (gc.cont.fcn));
3531 }
3532 else
3533 {
3534 llcontbuglit ("context_inFunctionName: not in function");
3535 return (cstring_undefined);
3536 }
3537}
3538
3539void
3540context_userSetFlag (flagcode f, bool b)
3541{
28bf4b0b 3542 DPRINTF (("set flag: %s", flagcode_unparse (f)));
616915dd 3543
3544 if (f == FLG_NEVERINCLUDE && b)
3545 {
3546 if (gc.flags[FLG_EXPORTHEADER])
3547 {
abb1cb43 3548 llerror_flagWarning (cstring_makeLiteral
3549 ("setting +neverinclude after +exportheader. "
3550 "Turning off exportheader, since headers are not checked "
3551 "when +neverinclude is used."));
616915dd 3552
3553 gc.flags[FLG_EXPORTHEADER] = FALSE;
3554 }
3555 }
3556 else
3557 {
3558 if (f == FLG_EXPORTHEADER && b)
3559 {
3560 if (gc.flags[FLG_NEVERINCLUDE])
3561 {
abb1cb43 3562 llerror_flagWarning (cstring_makeLiteral
3563 ("setting +exportheader after +neverinclude. "
3564 "Not setting exportheader, since headers are not checked "
3565 "when +neverinclude is used."));
616915dd 3566 gc.flags[FLG_EXPORTHEADER] = FALSE;
3567 return;
3568 }
3569 }
3570 }
3571
3572 if (context_getFlag (FLG_WARNFLAGS) && f != FLG_NOF && f != FLG_OPTF)
3573 {
3574 bool lastsetting = context_getFlag (f);
3575
3576 if (bool_equal (lastsetting, b)
3577 && !flagcode_isSpecialFlag (f)
3578 && !flagcode_isIdemFlag (f)
3579 && !flagcode_hasArgument (f))
3580 {
abb1cb43 3581 llerror_flagWarning (message ("setting %s%s redundant with current value",
3582 cstring_makeLiteralTemp (b ? "+" : "-"),
3583 flagcode_unparse (f)));
28bf4b0b 3584 }
3585 }
3586
3587 if (flagcode_isWarnUseFlag (f) && b)
3588 {
3589 if (!context_getFlag (FLG_WARNUSE))
3590 {
abb1cb43 3591 llerror_flagWarning (message ("flag +%s is canceled by -warnuse",
3592 flagcode_unparse (f)));
28bf4b0b 3593
616915dd 3594 }
3595 }
3596
28bf4b0b 3597
616915dd 3598 if (flagcode_isLibraryFlag (f))
3599 {
3600 if (gc.library != FLG_ANSILIB
3601 && gc.library != f)
3602 {
abb1cb43 3603 llerror_flagWarning (message ("selecting library %s after library %s was "
3604 "selected (only one library may be used)",
3605 flagcode_unparse (f),
3606 flagcode_unparse (gc.library)));
616915dd 3607 }
3608
3609 if (f == FLG_UNIXLIB)
3610 {
3611 if (context_getFlag (FLG_WARNUNIXLIB))
3612 {
abb1cb43 3613 llerror_flagWarning (cstring_makeLiteral
3614 ("selecting unix library. Unix library is "
3615 "ad hoc addition to POSIX library. Recommend "
3616 "use +posixlib to select POSIX library instead. "
3617 "Use -warnunixlib to suppress this message."));
616915dd 3618 }
3619 }
3620
3621 gc.library = f;
3622 }
abb1cb43 3623
3624 if (flagcode_isNameChecksFlag (f) && b && !context_maybeSet (FLG_NAMECHECKS))
3625 {
3626 llerror_flagWarning (message
3627 ("setting +%s will not produce warnings with -namechecks. Must set +namechecks also.",
3628 flagcode_unparse (f)));
3629 }
3630
616915dd 3631 gc.setGlobally[f] = TRUE;
3632 context_setFlag (f, b);
3633}
3634
3635void
3636context_fileSetFlag (flagcode f, ynm set)
3637{
3638 if (!gc.savedFlags)
3639 {
3640 context_saveFlagSettings ();
3641 }
3642
3643 if (ynm_isOff (set))
3644 {
3645 context_setFlagAux (f, FALSE, TRUE, FALSE);
3646 }
3647 else if (ynm_isOn (set))
3648 {
3649 context_setFlagAux (f, TRUE, TRUE, FALSE);
3650 gc.setLocally[f] = TRUE;
3651 }
3652 else
3653 {
3654 context_restoreFlag (f);
3655 }
3656}
3657
3658static void
3659context_restoreFlag (flagcode f)
3660{
3661
3662 if (!gc.savedFlags)
3663 {
3664 voptgenerror
3665 (FLG_SYNTAX,
3666 message ("Attempt to restore flag %s when no file scope flags "
3667 "have been set.",
3668 flagcode_unparse (f)),
3669 g_currentloc);
3670 }
3671 else
3672 {
3673 context_addFlagMarker (f, MAYBE);
3674 context_setFlagAux (f, gc.saveflags[f], FALSE, TRUE);
3675 }
3676
3677 }
3678
28bf4b0b 3679static void
616915dd 3680context_setFlag (flagcode f, bool b)
3681{
3682 context_setFlagAux (f, b, FALSE, FALSE);
3683}
3684
3685void
3686context_setFlagTemp (flagcode f, bool b)
3687{
3688 DPRINTF (("Set flag temp: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3689 gc.flags[f] = b;
3690}
3691
3692/*@notfunction@*/
3693# define DOSET(ff,b) \
3694 do { if (inFile) { gc.setLocally[ff] = TRUE; \
3695 context_addFlagMarker (ff, ynm_fromBool (b)); } \
28bf4b0b 3696 DPRINTF (("set flag: %s / %s", flagcode_unparse (ff), bool_unparse (b))); \
616915dd 3697 gc.flags[ff] = b; } while (FALSE)
3698
3699static void
3700 context_setFlagAux (flagcode f, bool b, bool
3701 inFile, /*@unused@*/ bool isRestore)
3702{
3703 DPRINTF (("set flag: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3704
3705 if (f == FLG_USESTDERR)
3706 {
3707 if (b) {
3708 g_msgstream = stderr;
3709 } else {
3710 g_msgstream = stdout;
3711 }
3712 }
3713
28bf4b0b 3714 /*
3715 ** Removed test for special flags.
3716 */
616915dd 3717
28bf4b0b 3718 if (flagcode_isIdemFlag (f))
3719 {
3720 DOSET (f, TRUE);
3721 }
3722 else
3723 {
3724 DOSET (f, b);
3725 }
616915dd 3726
28bf4b0b 3727 if (f >= FLG_ITS4MOSTRISKY && f <= FLG_ITS4LOWRISK)
3728 {
3729 if (b) /* Turing higher level on, turns on all lower levels */
3730 {
3731 switch (f)
616915dd 3732 {
28bf4b0b 3733 case FLG_ITS4MOSTRISKY:
3734 DOSET (FLG_ITS4VERYRISKY, b);
3735 /*@fallthrough@*/
3736 case FLG_ITS4VERYRISKY:
3737 DOSET (FLG_ITS4RISKY, b);
3738 /*@fallthrough@*/
3739 case FLG_ITS4RISKY:
3740 DOSET (FLG_ITS4MODERATERISK, b);
3741 /*@fallthrough@*/
3742 case FLG_ITS4MODERATERISK:
3743 DOSET (FLG_ITS4LOWRISK, b);
3744 /*@fallthrough@*/
3745 case FLG_ITS4LOWRISK:
3746 break;
3747 BADDEFAULT;
616915dd 3748 }
28bf4b0b 3749 }
3750 else /* Turning level off, turns off all higher levels */
3751 {
3752 switch (f)
616915dd 3753 {
28bf4b0b 3754 case FLG_ITS4LOWRISK:
3755 DOSET (FLG_ITS4MODERATERISK, b);
3756 /*@fallthrough@*/
3757 case FLG_ITS4MODERATERISK:
3758 DOSET (FLG_ITS4RISKY, b);
3759 /*@fallthrough@*/
3760 case FLG_ITS4RISKY:
3761 DOSET (FLG_ITS4VERYRISKY, b);
3762 /*@fallthrough@*/
3763 case FLG_ITS4VERYRISKY:
3764 DOSET (FLG_ITS4MOSTRISKY, b);
3765 /*@fallthrough@*/
3766 case FLG_ITS4MOSTRISKY:
3767 break;
3768 BADDEFAULT;
616915dd 3769 }
616915dd 3770 }
3771 }
28bf4b0b 3772
3773 switch (f)
3774 {
3775 case FLG_ALLEMPTY:
3776 DOSET (FLG_ALLEMPTY, b);
3777 DOSET (FLG_IFEMPTY, b);
3778 DOSET (FLG_WHILEEMPTY, b);
3779 DOSET (FLG_FOREMPTY, b);
3780 break;
3781 case FLG_PREDBOOL:
3782 DOSET (FLG_PREDBOOL, b);
3783 DOSET (FLG_PREDBOOLINT, b);
3784 DOSET (FLG_PREDBOOLPTR, b);
3785 DOSET (FLG_PREDBOOLOTHERS, b);
3786 break;
3787 case FLG_GLOBALIAS:
3788 DOSET (FLG_CHECKSTRICTGLOBALIAS, b);
3789 DOSET (FLG_CHECKEDGLOBALIAS, b);
3790 DOSET (FLG_CHECKMODGLOBALIAS, b);
3791 DOSET (FLG_UNCHECKEDGLOBALIAS, b);
3792 break;
3793 case FLG_ALLBLOCK:
3794 DOSET (FLG_ALLBLOCK, b);
3795 DOSET (FLG_IFBLOCK, b);
3796 DOSET (FLG_WHILEBLOCK, b);
3797 DOSET (FLG_FORBLOCK, b);
3798 break;
3799 case FLG_GRAMMAR:
3800 if (b)
616915dd 3801 {
28bf4b0b 3802 yydebug = 1;
3803 mtdebug = 1;
616915dd 3804 }
3805 else
3806 {
28bf4b0b 3807 yydebug = 0;
3808 mtdebug = 0;
3809 }
3810
3811 DOSET (FLG_GRAMMAR, b);
3812 break;
3813 case FLG_CODEIMPONLY:
3814 DOSET (FLG_CODEIMPONLY, b);
3815 DOSET (FLG_GLOBIMPONLY, b);
3816 DOSET (FLG_RETIMPONLY, b);
3817 DOSET (FLG_STRUCTIMPONLY, b);
3818 break;
3819 case FLG_SPECALLIMPONLY:
3820 DOSET (FLG_SPECALLIMPONLY, b);
3821 DOSET (FLG_SPECGLOBIMPONLY, b);
3822 DOSET (FLG_SPECRETIMPONLY, b);
3823 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3824 break;
3825 case FLG_ALLIMPONLY:
3826 DOSET (FLG_ALLIMPONLY, b);
3827 DOSET (FLG_GLOBIMPONLY, b);
3828 DOSET (FLG_RETIMPONLY, b);
3829 DOSET (FLG_STRUCTIMPONLY, b);
3830 DOSET (FLG_SPECGLOBIMPONLY, b);
3831 DOSET (FLG_SPECRETIMPONLY, b);
3832 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3833 break;
3834 case FLG_ANSILIMITS:
3835 DOSET (FLG_ANSILIMITS, b);
3836 DOSET (FLG_CONTROLNESTDEPTH, b);
3837 DOSET (FLG_STRINGLITERALLEN, b);
3838 DOSET (FLG_INCLUDENEST, b);
3839 DOSET (FLG_NUMSTRUCTFIELDS, b);
3840 DOSET (FLG_NUMENUMMEMBERS, b);
3841
3842 if (b)
3843 {
3844 context_setValue (FLG_CONTROLNESTDEPTH, DEFAULT_CONTROLNESTDEPTH);
3845 context_setValue (FLG_STRINGLITERALLEN, DEFAULT_STRINGLITERALLEN);
3846 context_setValue (FLG_INCLUDENEST, DEFAULT_INCLUDENEST);
3847 context_setValue (FLG_NUMSTRUCTFIELDS, DEFAULT_NUMSTRUCTFIELDS);
3848 context_setValue (FLG_NUMENUMMEMBERS, DEFAULT_NUMENUMMEMBERS);
3849 }
3850 break;
3851 case FLG_EXTERNALNAMELEN:
3852 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3853 DOSET (FLG_EXTERNALNAMELEN, TRUE);
3854 break;
3855 case FLG_INTERNALNAMELEN:
3856 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3857 DOSET (FLG_INTERNALNAMELEN, TRUE);
3858 break;
3859 case FLG_EXTERNALNAMECASEINSENSITIVE:
3860 DOSET (FLG_EXTERNALNAMECASEINSENSITIVE, b);
3861
3862 if (b && !gc.flags[FLG_DISTINCTEXTERNALNAMES])
3863 {
3864 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3865 context_setValue (FLG_EXTERNALNAMELEN, 0);
3866 }
3867 break;
3868 case FLG_INTERNALNAMECASEINSENSITIVE:
3869 DOSET (FLG_INTERNALNAMECASEINSENSITIVE, b);
3870
3871 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3872 {
3873 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3874 context_setValue (FLG_INTERNALNAMELEN, 0);
3875 }
3876 break;
3877 case FLG_INTERNALNAMELOOKALIKE:
3878 DOSET (FLG_INTERNALNAMELOOKALIKE, b);
3879
3880 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3881 {
3882 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3883 context_setValue (FLG_INTERNALNAMELEN, 0);
616915dd 3884 }
28bf4b0b 3885 break;
3886 case FLG_MODUNSPEC:
3887 DOSET (FLG_MODNOMODS, b);
3888 DOSET (FLG_MODGLOBSUNSPEC, b);
3889 DOSET (FLG_MODSTRICTGLOBSUNSPEC, b);
3890 break;
3891 case FLG_EXPORTANY:
3892 DOSET (FLG_EXPORTVAR, b);
3893 DOSET (FLG_EXPORTFCN, b);
3894 DOSET (FLG_EXPORTTYPE, b);
3895 DOSET (FLG_EXPORTMACRO, b);
3896 DOSET (FLG_EXPORTCONST, b);
3897 gc.anyExports = TRUE;
3898 break;
3899 case FLG_REPEXPOSE:
3900 DOSET (FLG_RETEXPOSE, b);
3901 DOSET (FLG_ASSIGNEXPOSE, b);
3902 DOSET (FLG_CASTEXPOSE, b);
3903 break;
3904 case FLG_RETVAL:
3905 DOSET (FLG_RETVALBOOL, b);
3906 DOSET (FLG_RETVALINT, b);
3907 DOSET (FLG_RETVALOTHER, b);
3908 break;
3909 case FLG_PARTIAL:
3910 if (b)
3911 {
3912 DOSET (FLG_EXPORTLOCAL, FALSE);
3913 DOSET (FLG_DECLUNDEF, FALSE);
3914 DOSET (FLG_SPECUNDEF, FALSE);
3915 DOSET (FLG_TOPUNUSED, FALSE);
3916 }
3917 break;
3918 case FLG_DEEPBREAK:
3919 DOSET (FLG_LOOPLOOPBREAK, b);
3920 DOSET (FLG_LOOPSWITCHBREAK, b);
3921 DOSET (FLG_SWITCHLOOPBREAK, b);
3922 DOSET (FLG_SWITCHSWITCHBREAK, b);
3923 DOSET (FLG_LOOPLOOPCONTINUE, b);
3924 DOSET (FLG_DEEPBREAK, b);
3925 break;
3926 case FLG_ACCESSALL:
3927 DOSET (FLG_ACCESSMODULE, b);
3928 DOSET (FLG_ACCESSFILE, b);
3929 DOSET (FLG_ACCESSCZECH, b);
3930 break;
3931 case FLG_ALLMACROS:
3932 DOSET (FLG_ALLMACROS, b);
3933 DOSET (FLG_FCNMACROS, b);
3934 DOSET (FLG_CONSTMACROS, b);
3935 break;
3936 case FLG_CZECH:
3937 if (b) { DOSET (FLG_ACCESSCZECH, b); }
3938 DOSET (FLG_CZECHFUNCTIONS, b);
3939 DOSET (FLG_CZECHVARS, b);
3940 DOSET (FLG_CZECHCONSTANTS, b);
3941 DOSET (FLG_CZECHTYPES, b);
3942 break;
3943 case FLG_SLOVAK:
3944 if (b) { DOSET (FLG_ACCESSSLOVAK, b); }
3945 DOSET (FLG_SLOVAKFUNCTIONS, b);
3946 DOSET (FLG_SLOVAKVARS, b);
3947 DOSET (FLG_SLOVAKCONSTANTS, b);
3948 DOSET (FLG_SLOVAKTYPES, b);
3949 break;
3950 case FLG_CZECHOSLOVAK:
3951 if (b) { DOSET (FLG_ACCESSCZECHOSLOVAK, b); }
3952 DOSET (FLG_CZECHOSLOVAKFUNCTIONS, b);
3953 DOSET (FLG_CZECHOSLOVAKVARS, b);
3954 DOSET (FLG_CZECHOSLOVAKCONSTANTS, b);
3955 DOSET (FLG_CZECHOSLOVAKTYPES, b);
3956 break;
3957 case FLG_NULL:
3958 DOSET (FLG_NULLSTATE, b);
3959 DOSET (FLG_NULLDEREF, b);
3960 DOSET (FLG_NULLASSIGN, b);
3961 DOSET (FLG_NULLPASS, b);
3962 DOSET (FLG_NULLRET, b);
3963 break;
3964 case FLG_MEMCHECKS:
3965 DOSET (FLG_NULLSTATE, b);
3966 DOSET (FLG_NULLDEREF, b);
3967 DOSET (FLG_NULLASSIGN, b);
3968 DOSET (FLG_NULLPASS, b);
3969 DOSET (FLG_NULLRET, b);
3970 DOSET (FLG_COMPDEF, b);
3971 DOSET (FLG_COMPMEMPASS, b);
3972 DOSET (FLG_UNIONDEF, b);
3973 DOSET (FLG_MEMTRANS, b);
3974 DOSET (FLG_USERELEASED, b);
3975 DOSET (FLG_ALIASUNIQUE, b);
3976 DOSET (FLG_MAYALIASUNIQUE, b);
3977 DOSET (FLG_MUSTFREE, b);
3978 DOSET (FLG_MUSTDEFINE, b);
3979 DOSET (FLG_GLOBSTATE, b);
3980 DOSET (FLG_COMPDESTROY, b);
3981 DOSET (FLG_MUSTNOTALIAS, b);
3982 DOSET (FLG_MEMIMPLICIT, b);
3983 DOSET (FLG_BRANCHSTATE, b);
3984 /*@fallthrough@*/ /* also sets memtrans flags */
3985 case FLG_MEMTRANS:
3986 DOSET (FLG_MEMTRANS, b);
3987 DOSET (FLG_EXPOSETRANS, b);
3988 DOSET (FLG_OBSERVERTRANS, b);
3989 DOSET (FLG_DEPENDENTTRANS, b);
3990 DOSET (FLG_NEWREFTRANS, b);
3991 DOSET (FLG_ONLYTRANS, b);
3992 DOSET (FLG_OWNEDTRANS, b);
3993 DOSET (FLG_FRESHTRANS, b);
3994 DOSET (FLG_SHAREDTRANS, b);
3995 DOSET (FLG_TEMPTRANS, b);
3996 DOSET (FLG_KEPTTRANS, b);
3997 DOSET (FLG_REFCOUNTTRANS, b);
3998 DOSET (FLG_STATICTRANS, b);
3999 DOSET (FLG_UNKNOWNTRANS, b);
4000 DOSET (FLG_KEEPTRANS, b);
4001 DOSET (FLG_IMMEDIATETRANS, b);
4002 break;
4003
4004 default:
4005 break;
4006 }
4007
4008 if (b && !gc.anyExports
4009 && (f == FLG_EXPORTVAR || f == FLG_EXPORTFCN
4010 || f == FLG_EXPORTTYPE || f == FLG_EXPORTMACRO
4011 || f == FLG_EXPORTCONST
4012 || f == FLG_EXPORTANY))
4013 {
4014 gc.anyExports = TRUE;
616915dd 4015 }
4016}
4017
4018bool
4019context_maybeSet (flagcode d)
4020{
4021 return (gc.flags[d] || gc.setLocally[d]);
4022}
4023
4024bool
4025context_getFlag (flagcode d)
4026{
4027 return (gc.flags[d]);
4028}
4029
28bf4b0b 4030bool
4031context_flagOn (flagcode f, fileloc loc)
4032{
4033 return (!context_suppressFlagMsg (f, loc));
4034}
4035
616915dd 4036static void context_saveFlagSettings (void)
4037{
4038 gc.savedFlags = TRUE;
4039 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4040 memcpy (gc.saveflags, gc.flags, sizeof (gc.flags));
4041}
4042
4043static void context_restoreFlagSettings (void)
4044{
4045 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4046 memcpy (gc.flags, gc.saveflags, sizeof (gc.flags));
4047 gc.savedFlags = FALSE;
4048}
4049
4050void context_setFilename (fileId fid, int lineno)
4051 /*@globals fileloc g_currentloc;@*/
4052 /*@modifies g_currentloc@*/
4053{
4054 if (fileId_baseEqual (currentFile (), fid))
4055 {
4056 setLine (lineno);
4057 return;
4058 }
4059 else
4060 {
4061 fileloc_setColumn (g_currentloc, 0);
4062
4063 if (fileloc_isSpecialFile (g_currentloc))
4064 {
4065 gc.inDerivedFile = TRUE;
4066 }
4067
4068 if (filelocStack_popPushFile (gc.locstack, g_currentloc))
4069 {
4070 int maxdepth = context_getValue (FLG_INCLUDENEST);
4071
4072 if (filelocStack_size (gc.locstack) > maxdepth)
4073 {
4074 int depth = filelocStack_includeDepth (gc.locstack);
4075
4076 if (depth > maxdepth)
4077 {
4078 if (optgenerror
4079 (FLG_INCLUDENEST,
4080 message ("Maximum include nesting depth "
4081 "(%d, current depth %d) exceeded",
4082 maxdepth,
4083 depth),
4084 filelocStack_nextTop (gc.locstack)))
4085 {
4086 filelocStack_printIncludes (gc.locstack);
4087 }
4088 }
4089 }
4090 }
4091
4092 g_currentloc = fileloc_create (fid, lineno, 1);
4093 gc.inheader = fileId_isHeader (currentFile ());
4094
4095 context_enterFileAux ();
4096 }
4097}
4098
4099void context_enterIterDef (/*@observer@*/ uentry le)
4100{
b7e84605 4101 context_enterMacro (le);
616915dd 4102 gc.acct = typeIdSet_subtract (gc.facct, gc.nacct);
4103 gc.kind = CX_ITERDEF;
4104}
4105
4106void context_enterIterEnd (/*@observer@*/ uentry le)
4107{
b7e84605 4108 context_enterMacro (le);
616915dd 4109 gc.kind = CX_ITEREND;
4110}
4111
4112void
4113context_destroyMod (void)
4114 /*@globals killed gc@*/
4115{
4116 setCodePoint ();
4117 ctype_destroyMod ();
4118 setCodePoint ();
4119 usymtab_free ();
4120 setCodePoint ();
4121 fileTable_free (gc.ftab);
4122 filelocStack_free (gc.locstack);
4123 setCodePoint ();
4124 gc.ftab = fileTable_undefined;
4125
4126 macrocache_free (gc.mc);
4127 sfree (gc.moduleaccess);
4128 setCodePoint ();
4129
4130 fileloc_free (gc.saveloc); gc.saveloc = fileloc_undefined;
4131 fileloc_free (gc.pushloc); gc.pushloc = fileloc_undefined;
4132
4133 setCodePoint ();
4134 sRefSetList_free (gc.modrecs);
4135 setCodePoint ();
4136 flagMarkerList_free (gc.markers);
4137 setCodePoint ();
4138 messageLog_free (gc.msgLog);
4139 setCodePoint ();
4140 clauseStack_free (gc.clauses);
4141 setCodePoint ();
4142
4143 cstring_free (gc.msgAnnote);
4144 globSet_free (gc.globs_used);
28bf4b0b 4145 metaStateTable_free (gc.stateTable);
4146 annotationTable_free (gc.annotTable);
4147}
616915dd 4148
4149/*
4150** Flag shortcuts.
4151*/
4152
4153bool context_msgBoolInt (void)
4154{
4155 return gc.flags [FLG_BOOLINT];
4156}
4157
4158bool context_msgCharInt (void)
4159{
4160 return gc.flags [FLG_CHARINT];
4161}
4162
4163bool context_msgEnumInt (void)
4164{
4165 return gc.flags [FLG_ENUMINT];
4166}
4167
4168bool context_msgPointerArith (void)
4169{
4170 return gc.flags [FLG_POINTERARITH];
4171}
4172
4173bool context_msgStrictOps (void)
4174{
4175 return gc.flags [FLG_STRICTOPS];
4176}
4177
4178# ifndef NOLCL
4179bool context_msgLh (void)
4180{
4181 return gc.flags [FLG_DOLH];
4182}
4183# endif
4184
4185void context_pushLoc (void)
4186{
4187 fileloc_free (gc.pushloc);
4188 gc.pushloc = gc.saveloc;
4189 gc.saveloc = fileloc_undefined;
4190}
4191
4192void context_popLoc (void)
4193{
4194 gc.saveloc = fileloc_update (gc.saveloc, gc.pushloc);
4195}
4196
4197bool context_inGlobalScope (void)
4198{
4199 return (usymtab_inFileScope() || usymtab_inGlobalScope ());
4200}
4201
4202bool context_inInnerScope (void)
4203{
4204 return (gc.kind == CX_INNER);
4205}
4206
4207void context_setProtectVars (void)
4208{
4209 gc.protectVars = TRUE;
4210}
4211
4212bool context_anyErrors (void)
4213{
4214 return (gc.numerrors > 0);
4215}
4216
4217void context_hasError (void)
4218{
4219 gc.numerrors++;
ccf0a4a8 4220 DPRINTF (("num errors: %d", gc.numerrors));
616915dd 4221}
4222
4223int context_numErrors (void)
4224{
4225 return gc.numerrors;
4226}
4227
4228bool context_neednl (void)
4229{
4230 return gc.neednl;
4231}
4232
4233void context_setNeednl (void)
4234{
4235 gc.neednl = TRUE;
4236}
4237
4238int context_getExpect (void)
4239{
4240 return (context_getValue (FLG_EXPECT));
4241}
4242
4243# ifndef NOLCL
4244int context_getLCLExpect (void)
4245{
4246 return (context_getValue (FLG_LCLEXPECT));
4247}
4248# endif
4249
4250int context_getLimit (void)
4251{
4252 return (context_getValue (FLG_LIMIT));
4253}
4254
4255bool context_unlimitedMessages (void)
4256{
4257 return (context_getLimit () < 0);
4258}
4259
4260void context_releaseVars (void)
4261{
4262 llassert (gc.protectVars);
4263 gc.protectVars = FALSE;
4264}
4265
4266void context_sizeofReleaseVars (void)
4267{
4268 /* If there is a nested sizeof, this might not hold:
4269 llassert (gc.protectVars);
4270 */
4271
4272 gc.protectVars = FALSE;
4273}
4274
4275bool context_inProtectVars (void)
4276{
4277 return (gc.protectVars);
4278}
4279
4280void context_hideShowscan (void)
4281{
4282 gc.flags[FLG_SHOWSCAN] = FALSE;
4283}
4284
4285void context_unhideShowscan (void)
4286{
4287 gc.flags[FLG_SHOWSCAN] = TRUE;
4288}
4289
4290bool context_inHeader (void)
4291{
4292 return (gc.inheader);
4293}
4294
4295fileTable context_fileTable (void)
4296{
4297 return gc.ftab;
4298}
4299
4300cstring context_tmpdir (void)
4301{
4302 return (context_getString (FLG_TMPDIR));
4303}
4304
4305messageLog context_messageLog (void)
4306{
4307 return gc.msgLog;
4308}
4309
4310bool context_inMacroFunction (void)
4311{
4312 return (gc.kind == CX_MACROFCN);
4313}
4314
4315bool context_inMacroConstant (void)
4316{
4317 return (gc.kind == CX_MACROCONST);
4318}
4319
b7e84605 4320bool context_inUnknownMacro (void)
616915dd 4321{
4322 return (gc.kind == CX_UNKNOWNMACRO);
4323}
4324
4325void context_setShownFunction (void)
4326{
4327 gc.showfunction = FALSE;
4328}
4329
4330bool context_doDump (void)
4331{
4332 return cstring_isNonEmpty (context_getString (FLG_DUMP));
4333}
4334
4335bool context_doMerge (void)
4336{
4337 return cstring_isNonEmpty (context_getString (FLG_MERGE));
4338}
4339
4340cstring context_getDump (void)
4341{
4342 return context_getString (FLG_DUMP);
4343}
4344
4345cstring context_getMerge (void)
4346{
4347 return context_getString (FLG_MERGE);
4348}
4349
4350# ifndef NOLCL
4351bool context_inLCLLib (void)
4352{
4353 return (gc.kind == CX_LCLLIB);
4354}
4355
4356bool context_inImport (void)
4357{
4358 return (gc.inimport);
4359}
4360
4361void context_enterImport (void)
4362{
4363 gc.inimport = TRUE;
4364}
4365
4366void context_leaveImport (void)
4367{
4368 gc.inimport = FALSE;
4369}
4370# endif
4371
4372bool context_inMacro (void)
4373{
4374 return (gc.kind == CX_MACROFCN || gc.kind == CX_MACROCONST
4375 || gc.kind == CX_UNKNOWNMACRO
4376 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND);
4377}
4378
4379bool context_inIterDef (void)
4380{
4381 return (gc.kind == CX_ITERDEF);
4382}
4383
4384bool context_inIterEnd (void)
4385{
4386 return (gc.kind == CX_ITEREND);
4387}
4388
4389int context_getLinesProcessed (void)
4390{
4391 return (gc.linesprocessed);
4392}
4393
4394int context_getSpecLinesProcessed (void)
4395{
4396 return (gc.speclinesprocessed);
4397}
4398
4399# ifndef NOLCL
4400void context_processedSpecLine (void)
4401{
4402 gc.speclinesprocessed++;
4403}
4404
4405void context_resetSpecLines (void)
4406{
4407 gc.speclinesprocessed = 0;
4408}
4409# endif
4410
4411bool context_inGlobalContext (void)
4412{
4413 return (gc.kind == CX_GLOBAL);
4414}
4415
b7e84605 4416static void context_quietExitScopes (void)
4417{
4418 /*
4419 ** Try to restore the global scope (after an error).
4420 */
4421
4422 while (!usymtab_inFileScope ())
4423 {
4424 usymtab_quietExitScope (g_currentloc);
4425 }
4426
4427 gc.cont.glob = TRUE;
4428 gc.kind = CX_GLOBAL;
4429}
4430
4431void context_checkGlobalScope (void)
4432{
4433 if (gc.kind != CX_GLOBAL)
4434 {
a469ccf0 4435 if (context_inMacro ())
4436 {
4437 ; /* evans 2001-10-14: Okay to be in a macro here! */
4438 }
4439 else
4440 {
4441 llcontbug (message ("Not in global scope as expected: %q", context_unparse ()));
4442 context_quietExitScopes ();
4443 }
b7e84605 4444 }
4445}
4446
616915dd 4447void context_setFileId (fileId s)
4448{
4449 g_currentloc = fileloc_updateFileId (g_currentloc, s);
4450}
4451
4452bool context_setBoolName (void)
4453{
4454 return (!cstring_equalLit (context_getString (FLG_BOOLTYPE),
4455 DEFAULT_BOOLTYPE));
4456}
4457
4458cstring context_printBoolName (void)
4459{
4460 if (context_setBoolName ())
4461 {
4462 return context_getBoolName ();
4463 }
4464 else
4465 {
4466 return cstring_makeLiteralTemp ("boolean");
4467 }
4468}
4469
4470cstring context_getBoolName (void)
4471{
4472 return (context_getString (FLG_BOOLTYPE));
4473}
4474
4475cstring context_getFalseName (void)
4476{
4477 return (context_getString (FLG_BOOLFALSE));
4478}
4479
4480cstring context_getTrueName (void)
4481{
4482 return (context_getString (FLG_BOOLTRUE));
4483}
4484
4485cstring context_getLarchPath (void)
4486{
4487 return (context_getString (FLG_LARCHPATH));
4488}
4489
4490cstring context_getLCLImportDir (void)
4491{
4492 return (context_getString (FLG_LCLIMPORTDIR));
4493}
4494
4495static void context_setJustPopped (void)
4496{
4497 gc.justpopped = TRUE;
4498}
4499
4500void context_clearJustPopped (void)
4501{
4502 gc.justpopped = FALSE;
4503}
4504
4505bool context_justPopped (void)
4506{
4507 return (gc.justpopped);
4508}
4509
4510void context_setMacroMissingParams (void)
4511{
4512 gc.macroMissingParams = TRUE;
4513}
4514
4515void context_resetMacroMissingParams (void)
4516{
4517 gc.macroMissingParams = FALSE;
4518}
4519
4520bool context_isMacroMissingParams (void)
4521{
4522 return (gc.macroMissingParams);
4523}
4524
4525void context_showFilelocStack (void)
4526{
4527 filelocStack_printIncludes (gc.locstack);
4528}
4529
28bf4b0b 4530metaStateTable context_getMetaStateTable (void)
4531{
4532 return gc.stateTable;
4533}
4534
4535metaStateInfo context_lookupMetaStateInfo (cstring key)
4536{
4537 return metaStateTable_lookup (gc.stateTable, key);
4538}
4539
4540/*@null@*/ annotationInfo context_lookupAnnotation (cstring annot)
4541{
4542 annotationInfo ainfo;
4543
4544 ainfo = annotationTable_lookup (gc.annotTable, annot);
4545
4546 return ainfo;
4547}
4548
4549void context_addAnnotation (annotationInfo ainfo)
4550{
4551 if (annotationTable_contains (gc.annotTable, annotationInfo_getName (ainfo)))
4552 {
4553 voptgenerror
4554 (FLG_SYNTAX,
4555 message ("Duplicate annotation declaration: %s", annotationInfo_getName (ainfo)),
4556 annotationInfo_getLoc (ainfo));
4557
4558 annotationInfo_free (ainfo);
4559 }
4560 else
4561 {
4562 annotationTable_insert (gc.annotTable, ainfo);
4563 }
4564}
4565
4566void context_addMetaState (cstring mname, metaStateInfo msinfo)
4567{
4568 if (metaStateTable_contains (gc.stateTable, mname))
4569 {
4570 voptgenerror
4571 (FLG_SYNTAX,
4572 message ("Duplicate metastate declaration: %s", mname),
4573 metaStateInfo_getLoc (msinfo));
4574 cstring_free (mname);
4575 metaStateInfo_free (msinfo);
4576 }
4577 else
4578 {
990ec868 4579 DPRINTF (("Adding meta state: %s", mname));
28bf4b0b 4580 metaStateTable_insert (gc.stateTable, mname, msinfo);
4581 }
4582}
616915dd 4583
6970c11b 4584valueTable context_createValueTable (sRef s, stateInfo sinfo)
28bf4b0b 4585{
4586 if (metaStateTable_size (gc.stateTable) > 0)
4587 {
4588 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4589 /*@i32 should use smaller value... */
4590 DPRINTF (("Value table for: %s", sRef_unparse (s)));
990ec868 4591
28bf4b0b 4592 metaStateTable_elements (gc.stateTable, msname, msi)
4593 {
4594 mtContextNode context = metaStateInfo_getContext (msi);
616915dd 4595
28bf4b0b 4596 if (mtContextNode_matchesRefStrict (context, s))
4597 {
4598 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4599 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4600
990ec868 4601 valueTable_insert
4602 (res,
4603 cstring_copy (metaStateInfo_getName (msi)),
6970c11b 4604 stateValue_createImplicit (metaStateInfo_getDefaultValue (msi, s),
4605 stateInfo_copy (sinfo)));
28bf4b0b 4606 }
4607 else
4608 {
4609 DPRINTF (("No match: %s", metaStateInfo_unparse (msi)));
4610 }
4611 }
4612 end_metaStateTable_elements ;
4613
6970c11b 4614 stateInfo_free (sinfo);
28bf4b0b 4615 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4616 return res;
4617 }
4618 else
4619 {
6970c11b 4620 stateInfo_free (sinfo);
28bf4b0b 4621 return valueTable_undefined;
4622 }
4623}
616915dd 4624
6970c11b 4625valueTable context_createGlobalMarkerValueTable (stateInfo sinfo)
28bf4b0b 4626{
4627 if (metaStateTable_size (gc.stateTable) > 0)
4628 {
4629 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4630 /*@i32 should use smaller value... */
4631
4632 metaStateTable_elements (gc.stateTable, msname, msi)
4633 {
4634 /*@i23 only add global...*/
4635 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4636 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4637
4638 valueTable_insert (res,
4639 cstring_copy (metaStateInfo_getName (msi)),
4640 stateValue_create (metaStateInfo_getDefaultGlobalValue (msi),
6970c11b 4641 stateInfo_copy (sinfo)));
28bf4b0b 4642 }
4643 end_metaStateTable_elements ;
4644
6970c11b 4645 stateInfo_free (sinfo);
28bf4b0b 4646 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4647 return res;
4648 }
4649 else
4650 {
6970c11b 4651 stateInfo_free (sinfo);
28bf4b0b 4652 return valueTable_undefined;
4653 }
4654}
616915dd 4655
4656
4657
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