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