2 ** LCLint - annotation-assisted static program checker
3 ** Copyright (C) 1994-2001 University of Virginia,
4 ** Massachusetts Institute of Technology
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.
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.
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.
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
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.
36 # include "lclintMacros.nf"
38 # include "mtincludes.h"
41 # include "usymtab_interface.h"
44 # include "exprChecks.h"
45 # include "filelocStack.h"
46 # include "fileIdList.h"
52 extern /*@external@*/ int yydebug;
53 extern /*@external@*/ int mtdebug;
65 CX_FUNCTION, CX_FCNHEADER, CX_FCNDECLARATION,
66 CX_MACROFCN, CX_MACROCONST, CX_UNKNOWNMACRO,
67 CX_ITERDEF, CX_ITEREND,
68 CX_LCL, CX_LCLLIB, CX_MT
74 int speclinesprocessed;
76 flagMarkerList markers;
79 ** used to record state where a macro must match a function name
80 ** (i.e., no params were listed in the macro definition
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;
94 bool showfunction BOOLBITS;
95 bool savedFlags BOOLBITS;
96 bool justpopped BOOLBITS;
97 bool anyExports BOOLBITS;
110 filelocStack locstack;
113 /*@observer@*/ sRef aliasAnnote;
114 /*@observer@*/ sRef aliasAnnoteAls;
118 /*@observer@*/ sRefSet mods;
120 /* file access types */
123 /* local access types (this function) */
126 /* no access types (@noaccess) */
129 /*@observer@*/ globSet globs;
130 /*@only@*/ globSet globs_used;
134 /*@reldef@*/ maccesst *moduleaccess; /* Not defined is nmods == 0. */
141 bool flags[NUMFLAGS];
142 bool saveflags[NUMFLAGS];
143 bool setGlobally[NUMFLAGS];
144 bool setLocally[NUMFLAGS];
146 int values[NUMVALUEFLAGS];
147 int counters[NUMVALUEFLAGS];
149 o_cstring strings[NUMSTRINGFLAGS];
150 sRefSetList modrecs; /*@i32 ???? what is this for? */
152 metaStateTable stateTable; /* User-defined state information. */
153 annotationTable annotTable; /* User-defined annotations table. */
158 /*@dependent@*/ /*@exposed@*/ uentry fcn;
162 static /*@exposed@*/ cstring context_exposeString (flagcode p_flag) ;
163 static void context_restoreFlagSettings (void) /*@modifies gc@*/ ;
164 static void context_saveFlagSettings (void) /*@modifies gc@*/ ;
165 static void context_exitClauseAux (exprNode p_pred, exprNode p_tbranch)
167 static void context_exitClauseSimp (void) /*@modifies gc@*/ ;
168 static void context_exitClausePlain (void) /*@modifies gc@*/ ;
169 static void context_setJustPopped (void) /*@modifies gc.justpopped@*/ ;
170 static void context_setValue (flagcode p_flag, int p_val) /*@modifies gc.flags@*/ ;
171 static void context_setFlag (flagcode p_f, bool p_b)
172 /*@modifies gc.flags@*/ ;
175 context_setFlagAux (flagcode p_f, bool p_b, bool p_inFile, bool p_isRestore)
176 /*@modifies gc.flags@*/ ;
178 static void context_restoreFlag (flagcode p_f) /*@modifies gc.flags@*/ ;
182 cstring context_unparseFlagMarkers ()
184 return (flagMarkerList_unparse (gc.markers));
187 void context_setPreprocessing (void)
189 llassert (!gc.preprocessing);
190 gc.preprocessing = TRUE;
193 void context_clearPreprocessing (void)
195 llassert (gc.preprocessing);
196 gc.preprocessing = FALSE;
199 bool context_isPreprocessing (void)
201 return gc.preprocessing;
204 bool context_loadingLibrary (void)
206 return (fileloc_isLib (g_currentloc));
209 bool context_inXHFile (void)
211 return (fileloc_isXHFile (g_currentloc));
214 void context_setInCommandLine (void)
216 llassert (!gc.incommandline);
217 gc.incommandline = TRUE;
220 void context_clearInCommandLine (void)
222 llassert (gc.incommandline);
223 gc.incommandline = FALSE;
226 bool context_isInCommandLine (void)
228 return gc.incommandline;
232 void pushClause (clause c) /*@modifies gc.clauses, gc.inclause@*/
235 clauseStack_push (gc.clauses, c);
237 if (clause_isConditional (c)
238 && context_getFlag (FLG_CONTROLNESTDEPTH))
240 int maxdepth = context_getValue (FLG_CONTROLNESTDEPTH);
241 int depth = clauseStack_controlDepth (gc.clauses);
243 if (depth == maxdepth + 1)
246 (FLG_CONTROLNESTDEPTH,
247 message ("Maximum control nesting depth "
256 clause topClause (clauseStack s) /*@*/
258 if (clauseStack_isEmpty (s)) return NOCLAUSE;
259 return ((clause) clauseStack_top (s));
263 context_addMacroCache (/*@only@*/ cstring def)
265 DPRINTF (("macro cache: %s", def));
266 macrocache_addEntry (gc.mc, fileloc_copy (g_currentloc), def);
270 context_addComment (/*@only@*/ cstring def)
272 DPRINTF (("macro comment: %s", def));
273 macrocache_addComment (gc.mc, fileloc_copy (g_currentloc), def);
277 ** returns TRUE is fl is in ignore region, or region where -code
279 ** the logic is fuzzy...
283 context_inSuppressFlagZone (fileloc fl, flagcode code)
285 ynm ret = flagMarkerList_suppressError (gc.markers, code, fl);
288 if (ynm_isMaybe (ret))
296 res = !gc.saveflags[code];
300 res = !context_getFlag (code);
305 res = ynm_toBoolStrict (ret);
312 context_suppressSystemMsg (fileloc fl)
314 if (context_getFlag (FLG_SYSTEMDIRERRORS))
320 return (fileloc_isSystemFile (fl));
325 context_suppressFlagMsg (flagcode flag, fileloc fl)
327 if (context_suppressSystemMsg (fl))
332 /* want same object compare here */
334 if (fileloc_equal (fl, g_currentloc) || gc.inDerivedFile)
336 return (!context_getFlag (flag)
337 || context_inSuppressRegion ()
338 || context_inSuppressZone (fl)
339 || (gc.inDerivedFile && context_inSuppressFlagZone (fl, flag)));
343 return (context_inSuppressFlagZone (fl, flag));
348 context_suppressNotFlagMsg (flagcode flag, fileloc fl)
351 if (context_suppressSystemMsg (fl))
357 if (fl == g_currentloc)
358 /*@noaccess fileloc@*/
360 return (context_getFlag (flag) || context_inSuppressRegion ());
365 return (context_getFlag (flag) || context_inSuppressRegion ());
370 context_inSuppressZone (fileloc fl)
372 if (context_suppressSystemMsg (fl))
377 return (flagMarkerList_inIgnore (gc.markers, fl));
381 context_inSuppressRegion (void)
383 return (gc.insuppressregion);
387 context_enterSuppressRegion (void)
389 if (gc.insuppressregion)
391 gc.insuppressregion = FALSE; /* get this msg! */
393 ("%q: New ignore errors region entered while in ignore errors region",
394 fileloc_unparse (g_currentloc)));
397 gc.insuppressregion = TRUE;
398 flagMarkerList_add (gc.markers, flagMarker_createIgnoreOn (g_currentloc));
402 context_addFlagMarker (flagcode code, ynm set)
404 flagMarkerList_add (gc.markers,
405 flagMarker_createLocalSet (code, set, g_currentloc));
409 context_enterSuppressLine (int count)
411 fileloc nextline = fileloc_copy (g_currentloc);
413 flagMarkerList_add (gc.markers,
414 flagMarker_createIgnoreCount (count, g_currentloc));
416 fileloc_nextLine (nextline);
417 flagMarkerList_add (gc.markers,
418 flagMarker_createIgnoreOff (nextline));
419 fileloc_free (nextline);
422 void context_checkSuppressCounts (void)
424 if (context_getFlag (FLG_SUPCOUNTS))
426 flagMarkerList_checkSuppressCounts (gc.markers);
430 void context_incLineno (void)
437 context_exitSuppressRegion (void)
439 if (!gc.insuppressregion)
441 llerrorlit (FLG_SYNTAX,
442 "End ignore errors in region while not ignoring errors");
445 gc.insuppressregion = FALSE;
446 flagMarkerList_add (gc.markers, flagMarker_createIgnoreOff (g_currentloc));
450 context_enterMTfile (void)
456 context_exitMTfile (void)
458 llassert (gc.kind == CX_MT);
464 context_enterLCLfile (void)
467 gc.facct = typeIdSet_emptySet ();
472 addModuleAccess (/*@only@*/ cstring fname, typeIdSet mods)
476 for (i = 0; i < gc.nmods; i++)
478 if (cstring_equal (gc.moduleaccess[i].file, fname))
480 gc.moduleaccess[i].daccess = typeIdSet_union (gc.moduleaccess[i].daccess, mods);
481 cstring_free (fname);
486 if (gc.nmods == gc.maxmods)
490 gc.maxmods = gc.maxmods + DEFAULTMAXMODS;
491 oldmods = gc.moduleaccess;
493 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
495 for (i = 0; i < gc.nmods; i++)
497 gc.moduleaccess[i] = oldmods[i];
503 gc.moduleaccess[gc.nmods].file = fname;
504 gc.moduleaccess[gc.nmods].daccess = mods;
510 insertModuleAccess (cstring fname, typeId t)
514 for (i = 0; i < gc.nmods; i++)
516 if (cstring_equal (gc.moduleaccess[i].file, fname))
518 gc.moduleaccess[i].daccess = typeIdSet_insert (gc.moduleaccess[i].daccess, t);
523 addModuleAccess (cstring_copy (fname), typeIdSet_single (t));
528 context_exitLCLfile (void)
530 if (gc.kind != CX_LCLLIB)
533 fileLib_withoutExtension (fileName (currentFile ()), LCL_EXTENSION);
535 addModuleAccess (fileLib_removePath (lclname), gc.facct);
536 cstring_free (lclname);
541 gc.facct = typeIdSet_emptySet ();
546 context_dumpModuleAccess (FILE *fout)
550 for (i = 0; i < gc.nmods; i++)
552 cstring td = typeIdSet_dump (gc.moduleaccess[i].daccess);
554 fprintf (fout, "%s#%s@\n",
555 cstring_toCharsSafe (gc.moduleaccess[i].file),
556 cstring_toCharsSafe (td));
562 bool context_usingPosixLibrary ()
564 return (gc.library == FLG_POSIXLIB
565 || gc.library == FLG_POSIXSTRICTLIB
566 || gc.library == FLG_UNIXLIB
567 || gc.library == FLG_UNIXSTRICTLIB);
570 bool context_usingAnsiLibrary ()
572 return (gc.library != FLG_NOLIB);
575 flagcode context_getLibrary ()
580 void context_setLibrary (flagcode code)
585 /*@observer@*/ cstring context_selectedLibrary ()
590 return cstring_makeLiteralTemp (LLSTRICTLIBS_NAME);
592 return cstring_makeLiteralTemp (LLPOSIXLIBS_NAME);
593 case FLG_POSIXSTRICTLIB:
594 return cstring_makeLiteralTemp (LLPOSIXSTRICTLIBS_NAME);
596 return cstring_makeLiteralTemp (LLUNIXLIBS_NAME);
597 case FLG_UNIXSTRICTLIB:
598 return cstring_makeLiteralTemp (LLUNIXSTRICTLIBS_NAME);
600 return cstring_makeLiteralTemp (LLSTDLIBS_NAME);
607 context_loadModuleAccess (FILE *in)
609 char *s = mstring_create (MAX_DUMP_LINE_LENGTH);
611 char *name = mstring_create (MAX_NAME_LENGTH);
617 while ((reader_readLine (in, s, MAX_DUMP_LINE_LENGTH) != NULL )
623 while (s != NULL && *s != ';' && *s != '\0')
627 while (*s != '#' && *s != '\0')
636 llcontbug (message ("context_loadModuleAccess: bad library line: %s\n",
637 cstring_fromChars (s)));
643 addModuleAccess (cstring_copy (cstring_fromChars (oname)),
644 typeIdSet_undump (&s));
646 (void) reader_readLine (in, s, MAX_DUMP_LINE_LENGTH);
647 llassert (s != lasts);
657 typeIdSet context_fileAccessTypes (void)
663 context_resetModeFlags (void)
668 if (flagcode_isModeFlag (code))
670 context_setFlag (code, FALSE);
679 ** Set all flags to FALSE, except for a few which are
682 ** Set all values and strings to appropriate defaults.
683 ** Set all counters to 0.
687 conext_resetAllCounters (void)
691 for (i = 0; i < NUMVALUEFLAGS; i++)
698 context_resetAllFlags (void)
702 gc.flags[code] = FALSE;
704 if (flagcode_hasValue (code))
708 /*@-loopswitchbreak@*/
712 val = DEFAULT_LIMIT; break;
714 val = DEFAULT_BUGSLIMIT; break;
716 val = DEFAULT_LINELEN; break;
717 case FLG_INDENTSPACES:
718 val = DEFAULT_INDENTSPACES; break;
719 case FLG_EXTERNALNAMELEN:
720 val = DEFAULT_EXTERNALNAMELEN; break;
721 case FLG_INTERNALNAMELEN:
722 val = DEFAULT_INTERNALNAMELEN; break;
723 case FLG_COMMENTCHAR:
724 val = (int) DEFAULT_COMMENTCHAR; break;
725 case FLG_CONTROLNESTDEPTH:
726 val = (int) DEFAULT_CONTROLNESTDEPTH; break;
727 case FLG_STRINGLITERALLEN:
728 val = (int) DEFAULT_STRINGLITERALLEN; break;
729 case FLG_INCLUDENEST:
730 val = (int) DEFAULT_INCLUDENEST; break;
731 case FLG_NUMSTRUCTFIELDS:
732 val = (int) DEFAULT_NUMSTRUCTFIELDS; break;
733 case FLG_NUMENUMMEMBERS:
734 val = (int) DEFAULT_NUMENUMMEMBERS; break;
739 llbug (message ("Bad value flag: %s", flagcode_unparse (code)));
741 /*@=loopswitchbreak@*/
743 context_setValue (code, val);
745 else if (flagcode_hasString (code))
747 cstring val = cstring_undefined;
750 { /*@-loopswitchbreak@*/
753 cstring larchpath = osd_getEnvironmentVariable (LARCH_PATH);
755 if (cstring_isDefined (larchpath))
757 val = cstring_copy (larchpath);
761 val = cstring_makeLiteral (DEFAULT_LARCHPATH);
766 case FLG_LCLIMPORTDIR:
768 val = cstring_copy (osd_getEnvironment (cstring_makeLiteralTemp (LCLIMPORTDIR), cstring_makeLiteralTemp (DEFAULT_LCLIMPORTDIR)));
772 # if defined(OS2) || defined(MSDOS) || defined(WIN32)
774 char *env = osd_getEnvironmentVariable ("TMP");
778 env = osd_getEnvironmentVariable ("TEMP");
781 val = cstring_makeLiteral (env != NULL ? env : DEFAULT_TMPDIR);
784 val = cstring_makeLiteral (DEFAULT_TMPDIR);
785 # endif /* !defined(OS2) && !defined(MSDOS) */
789 val = cstring_makeLiteral (DEFAULT_BOOLTYPE); break;
791 val = cstring_makeLiteral ("FALSE"); break;
793 val = cstring_makeLiteral ("TRUE"); break;
794 case FLG_MACROVARPREFIX:
795 val = cstring_makeLiteral ("m_"); break;
797 val = cstring_makeLiteral (DEFAULT_SYSTEMDIR); break;
800 } /*@=loopswitchbreak@*/
802 context_setString (code, val);
806 ; /* nothing to set */
811 ** These flags are true by default.
814 /*@i34 move this into flags.def */
816 gc.flags[FLG_MODIFIES] = TRUE;
817 gc.flags[FLG_NESTCOMMENT] = TRUE;
818 gc.flags[FLG_GLOBALS] = TRUE;
819 gc.flags[FLG_FULLINITBLOCK] = TRUE;
820 gc.flags[FLG_LIKELYBOOL] = TRUE;
821 gc.flags[FLG_ZEROPTR] = TRUE;
822 gc.flags[FLG_NUMLITERAL] = TRUE;
823 gc.flags[FLG_DUPLICATEQUALS] = TRUE;
824 gc.flags[FLG_SKIPANSIHEADERS] = TRUE;
825 gc.flags[FLG_SKIPPOSIXHEADERS] = TRUE;
826 gc.flags[FLG_SYSTEMDIREXPAND] = TRUE;
827 gc.flags[FLG_UNRECOGCOMMENTS] = TRUE;
828 gc.flags[FLG_UNRECOGFLAGCOMMENTS] = TRUE;
829 gc.flags[FLG_CASTFCNPTR] = TRUE;
830 gc.flags[FLG_DOLCS] = TRUE;
831 gc.flags[FLG_USEVARARGS] = TRUE;
832 gc.flags[FLG_MAINTYPE] = TRUE;
833 gc.flags[FLG_SPECMACROS] = TRUE;
834 gc.flags[FLG_REDEF] = TRUE;
835 gc.flags[FLG_MACRONEXTLINE] = TRUE;
837 gc.flags[FLG_SIZEOFFORMALARRAY] = TRUE;
838 gc.flags[FLG_FIXEDFORMALARRAY] = TRUE;
840 gc.flags[FLG_WARNUSE] = TRUE;
841 gc.flags[FLG_PREDASSIGN] = TRUE;
842 gc.flags[FLG_MODOBSERVER] = TRUE;
843 gc.flags[FLG_MACROVARPREFIXEXCLUDE] = TRUE;
844 gc.flags[FLG_EXTERNALNAMECASEINSENSITIVE] = TRUE;
846 gc.flags[FLG_PARAMIMPTEMP] = TRUE;
847 gc.flags[FLG_RETIMPONLY] = TRUE;
848 gc.flags[FLG_GLOBIMPONLY] = TRUE;
849 gc.flags[FLG_STRUCTIMPONLY] = TRUE;
850 gc.flags[FLG_PREPROC] = TRUE;
851 gc.flags[FLG_NAMECHECKS] = TRUE;
852 gc.flags[FLG_FORMATCODE] = TRUE;
853 gc.flags[FLG_FORMATTYPE] = TRUE;
854 gc.flags[FLG_BADFLAG] = TRUE;
855 gc.flags[FLG_WARNFLAGS] = TRUE;
856 gc.flags[FLG_FILEEXTENSIONS] = TRUE;
857 gc.flags[FLG_WARNUNIXLIB] = TRUE;
858 gc.flags[FLG_WARNPOSIX] = TRUE;
859 gc.flags[FLG_SHOWCOL] = TRUE;
860 gc.flags[FLG_SHOWFUNC] = TRUE;
861 gc.flags[FLG_SUPCOUNTS] = TRUE;
862 gc.flags[FLG_HINTS] = TRUE;
863 gc.flags[FLG_SYNTAX] = TRUE;
864 gc.flags[FLG_TYPE] = TRUE;
865 gc.flags[FLG_INCOMPLETETYPE] = TRUE;
866 gc.flags[FLG_ABSTRACT] = TRUE;
867 gc.flags[FLG_ITER] = TRUE;
868 gc.flags[FLG_CONTROL] = TRUE;
869 gc.flags[FLG_UNRECOG] = TRUE;
870 gc.flags[FLG_SYSTEMUNRECOG] = TRUE;
871 gc.flags[FLG_LINTCOMMENTS] = TRUE;
872 gc.flags[FLG_ACCESSCZECH] = TRUE;
873 gc.flags[FLG_ACCESSMODULE] = TRUE;
874 gc.flags[FLG_ACCESSFILE] = TRUE;
875 gc.flags[FLG_MACROVARPREFIX] = TRUE;
877 gc.flags[FLG_ANNOTATIONERROR] = TRUE;
878 gc.flags[FLG_COMMENTERROR] = TRUE;
881 ** Changed for version 2.4.
884 gc.flags[FLG_GNUEXTENSIONS] = TRUE;
887 ** On by default for Win32, but not Unix (to support MS/VC++ error message format).
891 gc.flags[FLG_PARENFILEFORMAT] = TRUE;
896 ** C is way-lame, and you can initialize an array to a constant except where
897 ** it is declared. Hence, a macro is used to set the modeflags.
901 # define SETFLAGS() \
902 { int i = 0; while (modeflags[i] != INVALID_FLAG) { \
903 if (!flagcode_isModeFlag (modeflags[i])) \
904 { llbug (message ("not a mode flag: %s", \
905 flagcode_unparse (modeflags[i]))); } \
906 else { context_setFlag (modeflags[i], TRUE); } i++; }}
909 context_setMode (cstring s)
911 intSet setflags = intSet_new ();
915 if (flagcode_isModeFlag (code))
917 if (gc.setGlobally[code])
919 (void) intSet_insert (setflags, (int) code);
924 if (!intSet_isEmpty (setflags))
926 cstring rflags = cstring_undefined;
929 intSet_elements (setflags, el)
931 if (cstring_isUndefined (rflags))
933 rflags = cstring_copy (flagcode_unparse ((flagcode) (el)));
937 rflags = message ("%q, %s", rflags,
938 flagcode_unparse ((flagcode) el));
942 if (num > 4 && intSet_size (setflags) > 6)
944 rflags = message ("%q, (%d others) ...", rflags,
945 intSet_size (setflags) - num);
948 } end_intSet_elements ;
950 voptgenerror (FLG_WARNFLAGS,
951 message ("Setting mode %s after setting mode flags will "
952 "override set values of flags: %s",
956 cstring_free (rflags);
959 intSet_free (setflags);
961 context_resetModeFlags ();
963 if (cstring_equalLit (s, "standard"))
965 flagcode modeflags[] =
967 FLG_ENUMINT, FLG_MACROMATCHNAME,
968 FLG_MACROUNDEF, FLG_RELAXQUALS,
969 FLG_USEALLGLOBS, FLG_CHECKSTRICTGLOBALS,
970 FLG_CHECKSTRICTGLOBALIAS,
971 FLG_CHECKEDGLOBALIAS,
972 FLG_CHECKMODGLOBALIAS,
973 FLG_PREDBOOLOTHERS, FLG_PREDBOOLINT,
974 FLG_PARAMUNUSED, FLG_VARUNUSED, FLG_FUNCUNUSED,
976 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED, FLG_FIELDUNUSED,
977 FLG_PTRNUMCOMPARE, FLG_BOOLCOMPARE, FLG_MUTREP,
978 FLG_NOEFFECT, FLG_IMPTYPE,
979 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
980 FLG_SPECUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB, FLG_MISPLACEDSHAREQUAL,
983 FLG_MACROPARAMS, FLG_MACROASSIGN, FLG_SEFPARAMS,
984 FLG_MACROSTMT, FLG_MACROPARENS,
987 FLG_MACROREDEF, FLG_INFLOOPS, FLG_UNREACHABLE,
988 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
993 /* memchecks flags */
995 FLG_NULLSTATE, FLG_NULLASSIGN,
996 FLG_NULLPASS, FLG_NULLRET,
998 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1001 /* memtrans flags */
1020 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1021 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1022 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1025 FLG_STATETRANSFER, FLG_STATEMERGE,
1026 FLG_EVALORDER, FLG_SHADOW, FLG_READONLYSTRINGS,
1028 FLG_IMPCHECKEDSPECGLOBALS,
1029 FLG_MODGLOBS, FLG_WARNLINTCOMMENTS,
1030 FLG_IFEMPTY, FLG_REALCOMPARE,
1031 FLG_BOOLOPS, FLG_PTRNEGATE,
1033 FLG_BUFFEROVERFLOWHIGH,
1040 else if (cstring_equalLit (s, "weak"))
1042 flagcode modeflags[] =
1044 FLG_BOOLINT, FLG_CHARINT, FLG_FLOATDOUBLE,
1045 FLG_ENUMINT, FLG_RELAXQUALS, FLG_FORWARDDECL,
1046 FLG_CHARINDEX, FLG_ABSTVOIDP, FLG_USEALLGLOBS,
1047 FLG_CHARUNSIGNEDCHAR,
1049 FLG_VARUNUSED, FLG_FUNCUNUSED,
1051 FLG_CHECKSTRICTGLOBALS, FLG_MACROMATCHNAME,
1054 FLG_RETSTACK, FLG_PTRNEGATE,
1055 FLG_STATETRANSFER, FLG_STATEMERGE,
1056 FLG_LONGUNSIGNEDINTEGRAL,
1057 FLG_LONGUNSIGNEDUNSIGNEDINTEGRAL,
1061 FLG_BUFFEROVERFLOWHIGH,
1067 else if (cstring_equalLit (s, "checks"))
1069 flagcode modeflags[] =
1071 FLG_EXPORTLOCAL, FLG_IMPTYPE,
1072 FLG_STATETRANSFER, FLG_STATEMERGE,
1073 FLG_CHECKSTRICTGLOBALIAS,
1074 FLG_CHECKEDGLOBALIAS,
1075 FLG_CHECKMODGLOBALIAS,
1076 FLG_UNCHECKEDGLOBALIAS,
1078 FLG_EXITARG, FLG_PTRNUMCOMPARE,
1079 FLG_BOOLCOMPARE, FLG_MACROUNDEF,
1080 FLG_MUSTMOD, FLG_ALLGLOBALS,
1081 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1082 FLG_USEALLGLOBS, FLG_MUTREP, FLG_RETALIAS,
1083 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1084 FLG_FUNCUNUSED, FLG_GLOBALSIMPMODIFIESNOTHING,
1085 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_VARUNUSED,
1086 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1087 FLG_NOEFFECT, FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1088 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
1089 FLG_SPECUNDEF, FLG_IMPCHECKMODINTERNALS,
1090 FLG_DECLUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB,
1091 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
1098 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1102 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1104 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE,
1105 FLG_EVALORDER, FLG_USEDEF,
1109 /* memchecks flags */
1111 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1112 FLG_NULLPASS, FLG_NULLRET,
1114 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF, FLG_RETSTACK,
1116 /* memtrans flags */
1130 FLG_STATICINITTRANS,
1131 FLG_UNKNOWNINITTRANS,
1134 FLG_ONLYUNQGLOBALTRANS,
1135 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1136 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1137 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1140 FLG_NULLPOINTERARITH,
1141 FLG_SHADOW, FLG_DEPARRAYS,
1142 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1143 FLG_LOOPLOOPBREAK, FLG_SWITCHLOOPBREAK, FLG_MODGLOBS,
1144 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1145 FLG_MACROMATCHNAME, FLG_WARNLINTCOMMENTS,
1146 FLG_INCLUDENEST, FLG_ANSIRESERVED, FLG_CPPNAMES,
1147 FLG_NOPARAMS, FLG_IFEMPTY, FLG_WHILEEMPTY, FLG_REALCOMPARE,
1148 FLG_BOOLOPS, FLG_SHIFTSIGNED,
1149 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1154 else if (cstring_equalLit (s, "strict"))
1156 flagcode modeflags[] =
1158 FLG_CHECKSTRICTGLOBALIAS,
1159 FLG_CHECKEDGLOBALIAS,
1160 FLG_CHECKMODGLOBALIAS,
1161 FLG_UNCHECKEDGLOBALIAS,
1165 FLG_STATETRANSFER, FLG_STATEMERGE,
1166 FLG_MACROUNDEF, FLG_MUTREP, FLG_MUSTMOD,
1167 FLG_ALLGLOBALS, FLG_IMPTYPE,
1168 FLG_MODNOMODS, FLG_MODGLOBSUNSPEC, FLG_MODSTRICTGLOBSUNSPEC,
1169 FLG_GLOBUNSPEC, FLG_SIZEOFTYPE,
1170 FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1171 FLG_NOPARAMS, FLG_OLDSTYLE, FLG_EXITARG,
1174 FLG_ONLYUNQGLOBALTRANS,
1175 FLG_GLOBALSIMPMODIFIESNOTHING,
1176 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1177 FLG_INTERNALGLOBS, FLG_INTERNALGLOBSNOGLOBS,
1178 FLG_USEALLGLOBS, FLG_RETALIAS,
1179 FLG_MODGLOBS, FLG_MODGLOBSUNSPEC, FLG_MODGLOBSUNCHECKED,
1180 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1181 FLG_NOEFFECTUNCON, FLG_EVALORDERUNCON,
1183 FLG_EXPORTITER, FLG_EXPORTCONST,
1184 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_TOPUNUSED,
1185 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1187 FLG_NULLPOINTERARITH, FLG_POINTERARITH,
1189 FLG_BOOLCOMPARE, FLG_NOEFFECT,
1190 FLG_RETVALINT, FLG_RETVALBOOL, FLG_RETVALOTHER,
1191 FLG_ANSIRESERVED, FLG_ANSIRESERVEDLOCAL, FLG_CPPNAMES,
1192 FLG_RETVALBOOL, FLG_RETVALINT, FLG_SPECUNDEF,
1193 FLG_DECLUNDEF, FLG_STRICTOPS, FLG_INCONDEFS,
1194 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
1195 FLG_INCONDEFSLIB, FLG_MATCHFIELDS, FLG_EXPORTMACRO, FLG_EXPORTVAR,
1196 FLG_EXPORTFCN, FLG_EXPORTTYPE, FLG_EXPORTLOCAL, FLG_MACROPARAMS,
1198 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1201 FLG_MACROREDEF, FLG_MACROEMPTY,
1202 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1204 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1206 FLG_MODUNCON, FLG_MODUNCONNOMODS, FLG_MODINTERNALSTRICT,
1207 FLG_MODOBSERVERUNCON,
1212 /* memchecks flags */
1213 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1214 FLG_NULLPASS, FLG_NULLRET,
1216 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1218 /* memtrans flags */
1234 FLG_STATICINITTRANS,
1235 FLG_UNKNOWNINITTRANS,
1237 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1238 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1239 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1243 FLG_DECLPARAMNAME, FLG_DECLPARAMMATCH,
1245 FLG_SHADOW, FLG_DEPARRAYS,
1246 FLG_STRICTDESTROY, FLG_STRICTUSERELEASED, FLG_STRICTBRANCHSTATE,
1247 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1248 FLG_LOOPLOOPBREAK, FLG_LOOPSWITCHBREAK, FLG_SWITCHLOOPBREAK,
1249 FLG_SWITCHSWITCHBREAK, FLG_LOOPLOOPCONTINUE,
1250 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1251 FLG_ALLGLOBALS, FLG_IMPCHECKEDSTRICTGLOBALS,
1252 FLG_IMPCHECKEDSTRICTSTATICS,
1253 FLG_IMPCHECKEDSTRICTSPECGLOBALS,
1254 FLG_IMPCHECKMODINTERNALS,
1255 FLG_WARNMISSINGGLOBALS, FLG_WARNMISSINGGLOBALSNOGLOBS,
1256 FLG_WARNLINTCOMMENTS, FLG_ANSIRESERVEDLOCAL,
1257 FLG_INCLUDENEST, FLG_STRINGLITERALLEN,
1258 FLG_NUMSTRUCTFIELDS, FLG_NUMENUMMEMBERS,
1259 FLG_CONTROLNESTDEPTH,
1260 FLG_FORBLOCK, FLG_WHILEBLOCK,
1261 FLG_FOREMPTY, FLG_WHILEEMPTY,
1262 FLG_IFEMPTY, FLG_IFBLOCK,
1264 FLG_REALCOMPARE, FLG_BOOLOPS,
1265 FLG_SYSTEMDIRERRORS, FLG_UNUSEDSPECIAL,
1267 FLG_SHIFTSIGNED, FLG_BITWISEOPS,
1268 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1276 llcontbug (message ("context_setMode: bad mode: %s", s));
1281 context_isSpecialFile (cstring fname)
1283 cstring ext = fileLib_getExtension (fname);
1285 return (cstring_equalLit (ext, ".y")
1286 || cstring_equalLit (ext, ".l")
1287 || cstring_equalLit (fname, "lex.yy.c"));
1291 context_isSystemDir (cstring dir)
1293 cstring sysDirs = context_exposeString (FLG_SYSTEMDIRS);
1294 char *thisdir = cstring_toCharsSafe (sysDirs);
1295 char *nextdir = strchr (thisdir, SEPCHAR);
1297 if (nextdir != NULL)
1303 while (thisdir != NULL)
1305 DPRINTF (("Test: %s / %s", dir, thisdir));
1307 if (cstring_equalCanonicalPrefix (dir, thisdir))
1309 if (nextdir != NULL)
1311 *(nextdir - 1) = SEPCHAR;
1317 if (nextdir != NULL)
1319 *(nextdir - 1) = SEPCHAR;
1322 if (nextdir != NULL)
1325 nextdir = strchr (thisdir, SEPCHAR);
1327 if (nextdir != NULL)
1339 DPRINTF (("Returns FALSE"));
1344 context_addFileAccessType (typeId t)
1348 if (context_inFunctionLike ())
1350 gc.acct = typeIdSet_insert (gc.acct, t);
1353 gc.facct = typeIdSet_insert (gc.facct, t);
1355 base = fileloc_getBase (g_currentloc);
1356 insertModuleAccess (base, t);
1357 DPRINTF (("Add file access: %s / %s", typeIdSet_unparse (gc.facct),
1358 typeIdSet_unparse (gc.acct)));
1362 context_removeFileAccessType (typeId t)
1364 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
1365 || gc.kind == CX_UNKNOWNMACRO)
1367 gc.acct = typeIdSet_removeFresh (gc.acct, t);
1370 gc.facct = typeIdSet_removeFresh (gc.facct, t);
1371 gc.nacct = typeIdSet_insert (gc.nacct, t);
1374 void context_enterFunctionHeader (void)
1376 llassert (gc.kind == CX_GLOBAL);
1377 DPRINTF (("Enter function decl"));
1378 gc.kind = CX_FCNHEADER;
1381 void context_exitFunctionHeader (void)
1383 DPRINTF (("Exit function decl"));
1384 gc.kind = CX_GLOBAL;
1387 bool context_inFunctionHeader (void)
1389 return (gc.kind == CX_FCNHEADER);
1392 void context_enterFunctionDeclaration (uentry e)
1394 DPRINTF (("Enter function decl"));
1395 llassert (gc.savekind == CX_ERROR);
1396 gc.savekind = gc.kind;
1397 gc.kind = CX_FCNDECLARATION;
1401 void context_exitFunctionDeclaration (void)
1403 DPRINTF (("Exit function decl"));
1404 llassert (gc.savekind != CX_ERROR);
1405 llassert (gc.kind == CX_FCNDECLARATION);
1406 gc.kind = gc.savekind;
1407 gc.cont.fcn = uentry_undefined;
1408 gc.savekind = CX_ERROR;
1411 bool context_inFunctionDeclaration (void)
1413 return (gc.kind == CX_FCNDECLARATION);
1418 context_enterMacro (/*@observer@*/ uentry e)
1420 context_enterFunction (e);
1421 gc.kind = CX_MACROFCN;
1425 context_enterUnknownMacro (/*@dependent@*/ uentry e)
1427 llassert (uentry_isFunction (e));
1428 context_enterFunction (e);
1429 gc.kind = CX_UNKNOWNMACRO;
1432 void context_enterAndClause (exprNode e)
1435 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1436 pushClause (ANDCLAUSE);
1439 void context_enterOrClause (exprNode e)
1441 usymtab_trueBranch (guardSet_invert (exprNode_getGuards (e)));
1442 pushClause (ORCLAUSE);
1445 bool context_inDeepLoop (void)
1447 bool inLoop = FALSE;
1449 clauseStack_elements (gc.clauses, el)
1451 if (clause_isLoop (el))
1460 } end_clauseStack_elements;
1465 bool context_inDeepSwitch (void)
1467 bool inLoop = FALSE;
1469 clauseStack_elements (gc.clauses, el)
1471 if (clause_isSwitch (el))
1480 } end_clauseStack_elements;
1485 bool context_inDeepLoopSwitch (void)
1487 bool inLoop = FALSE;
1489 clauseStack_elements (gc.clauses, el)
1491 if (clause_isBreakable (el))
1500 } end_clauseStack_elements;
1505 clause context_breakClause (void)
1507 clauseStack_elements (gc.clauses, el)
1509 if (clause_isSwitch (el))
1513 else if (clause_isLoop (el))
1521 } end_clauseStack_elements;
1526 clause context_nextBreakClause (void)
1528 bool hasOne = FALSE;
1530 clauseStack_elements (gc.clauses, el)
1532 if (clause_isBreakable (el))
1543 } end_clauseStack_elements;
1548 bool context_inConditional (void)
1550 clauseStack_elements (gc.clauses, el)
1553 ** Should also include TRUECLAUSE and FALSECLAUSE, but need
1554 ** to distinguish if from ? for this
1557 if (clause_isBreakable (el) && (el != DOWHILECLAUSE))
1561 } end_clauseStack_elements;
1566 void context_exitAndClause (exprNode pred, exprNode tbranch)
1568 context_setJustPopped ();
1570 llassert (gc.inclause == ANDCLAUSE);
1572 usymtab_popAndBranch (pred, tbranch);
1573 clauseStack_pop (gc.clauses);
1574 gc.inclause = topClause (gc.clauses);
1577 void context_exitOrClause (exprNode pred, exprNode tbranch)
1579 context_setJustPopped ();
1581 llassert (gc.inclause == ORCLAUSE);
1583 usymtab_popOrBranch (pred, tbranch);
1584 clauseStack_pop (gc.clauses);
1585 gc.inclause = topClause (gc.clauses);
1588 static void context_enterCondClauseAux (clause cl)
1594 static void context_enterTrueAux (exprNode e, clause cl)
1597 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1601 void context_enterIterClause (void)
1603 context_enterTrueAux (exprNode_undefined, ITERCLAUSE);
1606 void context_enterDoWhileClause (void)
1608 pushClause (DOWHILECLAUSE);
1611 void context_enterWhileClause (exprNode e)
1613 context_enterTrueAux (e, WHILECLAUSE);
1616 void context_enterForClause (exprNode e)
1618 context_enterTrueAux (e, FORCLAUSE);
1621 void context_enterTrueClause (exprNode e)
1623 context_enterTrueAux (e, TRUECLAUSE);
1626 void context_enterSwitch (exprNode e)
1629 usymtab_switchBranch (e);
1630 context_enterCondClauseAux (SWITCHCLAUSE);
1633 void context_exitSwitch (exprNode e, bool allpaths)
1635 usymtab_exitSwitch (e, allpaths);
1637 while (clause_isCase (clauseStack_top (gc.clauses)))
1639 clauseStack_pop (gc.clauses);
1642 context_exitClauseSimp ();
1645 void context_enterCaseClause (exprNode e)
1647 bool branch = FALSE;
1649 DPRINTF (("Enter case clause!"));
1651 branch = usymtab_newCase (exprNode_undefined, e);
1655 context_enterCondClauseAux (CASECLAUSE);
1659 static void context_enterFalseClauseAux (exprNode e, clause cl)
1662 usymtab_altBranch (guardSet_invert (exprNode_getGuards (e)));
1664 clauseStack_switchTop (gc.clauses, cl);
1667 void context_enterFalseClause (exprNode e)
1670 context_enterFalseClauseAux (e, FALSECLAUSE);
1674 context_enterConstantMacro (/*@exposed@*/ /*@dependent@*/ uentry e)
1676 gc.kind = CX_MACROCONST;
1678 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1680 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1684 usymtab_enterScope ();
1685 sRef_enterFunctionScope ();
1687 gc.globs = globSet_undefined;
1688 globSet_clear (gc.globs_used);
1689 gc.mods = sRefSet_undefined;
1692 uentry context_getHeader (void)
1694 if (!(context_inFunctionLike () || (gc.kind == CX_MACROCONST)))
1696 llfatalbug (message ("context_getHeader: bad call: %q",
1697 context_unparse ()));
1700 return (gc.cont.fcn);
1704 context_setFunctionDefined (fileloc loc)
1708 case CX_UNKNOWNMACRO:
1711 uentry_setFunctionDefined (gc.cont.fcn, loc);
1714 /* (not a bug because of parse errors) */
1720 context_enterFunction (/*@exposed@*/ uentry e)
1722 gc.kind = CX_FUNCTION;
1725 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1727 if (uentry_hasAccessType (e))
1729 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1737 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1738 typeIdSet_unparse (gc.acct)));
1740 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1742 gc.globs = uentry_getGlobs (e);
1743 globSet_clear (gc.globs_used);
1744 gc.mods = uentry_getMods (e);
1746 usymtab_enterFunctionScope (e);
1747 sRef_enterFunctionScope ();
1750 static bool context_checkStrictGlobals (void)
1752 return (context_getFlag (FLG_CHECKSTRICTGLOBALS));
1755 static bool context_hasGlobs (void)
1757 if (context_inFunctionLike ())
1759 return (uentry_hasGlobs (gc.cont.fcn));
1767 static bool context_checkCheckedGlobals (void)
1769 return (context_getFlag (FLG_GLOBALS)
1770 && (context_getFlag (FLG_GLOBUNSPEC)
1771 || context_hasGlobs ()));
1774 static bool context_checkUnknownGlobals (void)
1776 /* should be uentry_hasGlobs ? */
1778 return (context_getFlag (FLG_ALLGLOBALS)
1779 && (context_getFlag (FLG_GLOBUNSPEC)
1780 || context_hasGlobs ()));
1783 static bool context_checkUncheckedGlobals (void)
1789 context_checkExport (uentry e)
1791 if (!gc.anyExports) return FALSE;
1793 if (uentry_isFunction (e)
1794 || (uentry_isVariable (e) && ctype_isFunction (uentry_getType (e))))
1796 return context_maybeSet (FLG_EXPORTFCN);
1798 else if (uentry_isExpandedMacro (e))
1800 return context_maybeSet (FLG_EXPORTMACRO);
1802 else if (uentry_isVariable (e))
1804 return context_maybeSet (FLG_EXPORTVAR);
1806 else if (uentry_isEitherConstant (e))
1808 return context_maybeSet (FLG_EXPORTCONST);
1810 else if (uentry_isIter (e) || uentry_isEndIter (e))
1812 return context_maybeSet (FLG_EXPORTITER);
1814 else if (uentry_isDatatype (e))
1816 return context_maybeSet (FLG_EXPORTTYPE);
1825 context_checkGlobUse (uentry glob)
1828 if (uentry_isCheckedStrict (glob))
1830 return context_checkStrictGlobals ();
1832 else if (uentry_isChecked (glob))
1834 return context_checkCheckedGlobals ();
1836 else if (uentry_isCheckedUnknown (glob) || uentry_isCheckMod (glob))
1838 return context_checkUnknownGlobals ();
1842 llassert (uentry_isUnchecked (glob));
1844 return context_checkUncheckedGlobals ();
1849 context_checkAliasGlob (uentry glob)
1851 if (uentry_isCheckedStrict (glob))
1853 return gc.flags[FLG_CHECKSTRICTGLOBALIAS];
1855 else if (uentry_isChecked (glob))
1857 return gc.flags[FLG_CHECKEDGLOBALIAS];
1859 else if (uentry_isCheckMod (glob))
1861 return gc.flags[FLG_CHECKMODGLOBALIAS];
1865 llassert (uentry_isUnchecked (glob) || uentry_isCheckedUnknown (glob));
1867 return gc.flags[FLG_UNCHECKEDGLOBALIAS];
1871 bool context_checkInternalUse (void)
1873 if (context_hasGlobs ())
1875 return (gc.flags[FLG_INTERNALGLOBS]);
1879 return (gc.flags[FLG_INTERNALGLOBSNOGLOBS]);
1884 context_checkGlobMod (sRef el)
1886 uentry ue = sRef_getUentry (el);
1888 /* no: llassert (sRef_isFileOrGlobalScope (el)); also check local statics */
1890 if (uentry_isCheckedModify (ue)
1891 || (!uentry_isUnchecked (ue) && (gc.flags[FLG_ALLGLOBALS])))
1893 if (context_hasMods ())
1895 return (gc.flags[FLG_MODGLOBS]);
1899 if (uentry_isCheckedStrict (ue))
1901 return (gc.flags[FLG_MODGLOBSUNSPEC]);
1905 return (gc.flags[FLG_MODSTRICTGLOBSUNSPEC]);
1911 if (context_hasMods ())
1913 return (gc.flags[FLG_MODGLOBSUNCHECKED]);
1923 context_usedGlobal (/*@exposed@*/ sRef el)
1925 if (!globSet_member (gc.globs_used, el))
1928 ** The first time a global is used in a function, we need
1929 ** to clear the derived sRefs, since they were set for the
1930 ** previous function.
1933 sRef_clearDerived (el);
1934 gc.globs_used = globSet_insert (gc.globs_used, el);
1938 /*@observer@*/ sRefSet
1939 context_modList (void)
1945 context_globAccess (sRef s)
1947 llassert (sRef_isFileOrGlobalScope (s) || sRef_isKindSpecial (s));
1948 return (globSet_member (gc.globs, s));
1952 context_hasAccess (typeId t)
1954 if (context_inFunctionLike ())
1956 DPRINTF (("Access %d / %s",
1957 t, typeIdSet_unparse (gc.acct)));
1958 return (typeIdSet_member (gc.acct, t));
1962 return (context_hasFileAccess (t));
1967 context_hasFileAccess (typeId t)
1969 return (typeIdSet_member (gc.facct, t));
1973 context_unparseAccess (void)
1975 return (message ("%q / %q", typeIdSet_unparse (gc.acct),
1976 typeIdSet_unparse (gc.facct)));
1980 context_unparseClauses (void)
1982 return (clauseStack_unparse (gc.clauses));
1986 context_couldHaveAccess (typeId t)
1988 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO)
1990 return (typeIdSet_member (gc.acct, t));
1994 return (typeIdSet_member (gc.facct, t));
1999 context_getRetType (void)
2001 ctype f = ctype_undefined;
2003 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
2005 f = uentry_getType (gc.cont.fcn);
2007 else if (gc.kind == CX_UNKNOWNMACRO)
2009 return ctype_unknown;
2013 llcontbuglit ("context_getRetType: not in a function context");
2014 return ctype_unknown;
2017 if (!ctype_isFunction (f))
2019 if (ctype_isKnown (f))
2021 llbuglit ("context_getRetType: not a function");
2024 return ctype_unknown;
2026 return (ctype_getReturnType (f));
2030 context_hasMods (void)
2032 if (context_inFunctionLike ())
2034 return (uentry_hasMods (gc.cont.fcn));
2043 context_exitAllClauses (void)
2045 while (!clauseStack_isEmpty (gc.clauses))
2047 clause el = clauseStack_top (gc.clauses);
2050 if (clause_isNone (el))
2052 usymtab_quietExitScope (g_currentloc);
2053 clauseStack_pop (gc.clauses);
2057 context_exitClausePlain ();
2061 clauseStack_clear (gc.clauses);
2062 gc.inclause = NOCLAUSE;
2066 context_exitAllClausesQuiet (void)
2068 while (!clauseStack_isEmpty (gc.clauses))
2070 clause el = clauseStack_top (gc.clauses);
2073 usymtab_quietExitScope (g_currentloc);
2074 clauseStack_pop (gc.clauses);
2077 clauseStack_clear (gc.clauses);
2078 gc.inclause = NOCLAUSE;
2082 void context_exitClauseSimp (void)
2085 context_setJustPopped ();
2086 clauseStack_pop (gc.clauses);
2087 gc.inclause = topClause (gc.clauses);
2091 void context_exitCaseClause (void)
2093 context_setJustPopped ();
2094 usymtab_popCaseBranch ();
2095 clauseStack_pop (gc.clauses);
2096 gc.inclause = topClause (gc.clauses);
2100 void context_exitClauseAux (exprNode pred, exprNode tbranch)
2102 context_setJustPopped ();
2103 /*@i32 was makeAlt */
2104 usymtab_popTrueBranch (pred, tbranch, gc.inclause);
2105 clauseStack_pop (gc.clauses);
2106 gc.inclause = topClause (gc.clauses);
2109 void context_exitTrueClause (exprNode pred, exprNode tbranch)
2111 DPRINTF (("Exit true clause: %s", exprNode_unparse (tbranch)));
2113 if (gc.inclause != TRUECLAUSE)
2115 llparseerror (cstring_makeLiteral
2116 ("Likely parse error. Conditional clauses are inconsistent."));
2120 context_setJustPopped ();
2121 usymtab_popTrueBranch (pred, tbranch, TRUECLAUSE);
2122 clauseStack_pop (gc.clauses);
2123 gc.inclause = topClause (gc.clauses);
2126 void context_exitIterClause (exprNode body)
2128 llassert (gc.inclause == ITERCLAUSE);
2130 context_setJustPopped ();
2132 if (context_getFlag (FLG_LOOPEXEC))
2134 usymtab_popTrueExecBranch (exprNode_undefined, body, ITERCLAUSE);
2138 usymtab_popTrueBranch (exprNode_undefined, body, ITERCLAUSE);
2141 clauseStack_pop (gc.clauses);
2142 gc.inclause = topClause (gc.clauses);
2145 static void context_popCase (void) {
2147 ** If we are exiting an outer clause, sometimes still in a switch case.
2161 DPRINTF (("Popping case clause: %s",
2162 clauseStack_unparse (gc.clauses)));
2164 if (gc.inclause == CASECLAUSE) {
2165 context_exitCaseClause ();
2169 void context_exitWhileClause (exprNode pred, exprNode body)
2171 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2175 if (gc.inclause != WHILECLAUSE) {
2176 DPRINTF (("Clause: %s / %s", clause_unparse (gc.inclause),
2177 clauseStack_unparse (gc.clauses)));
2180 llassert (gc.inclause == WHILECLAUSE);
2182 context_setJustPopped ();
2186 ** predicate must be false after while loop (unless there are breaks)
2189 if (context_getFlag (FLG_LOOPEXEC))
2191 usymtab_popTrueExecBranch (pred, body, WHILECLAUSE);
2195 usymtab_popTrueBranch (pred, body, WHILECLAUSE);
2199 usymtab_addGuards (invGuards);
2200 guardSet_free (invGuards);
2202 clauseStack_pop (gc.clauses);
2203 gc.inclause = topClause (gc.clauses);
2206 void context_exitDoWhileClause (exprNode pred)
2208 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2210 if (gc.inclause == CASECLAUSE) {
2211 /* handle Duff's device */
2212 clauseStack_pop (gc.clauses);
2213 gc.inclause = topClause (gc.clauses);
2216 llassert (gc.inclause == DOWHILECLAUSE);
2218 context_setJustPopped ();
2221 usymtab_addGuards (invGuards);
2222 guardSet_free (invGuards);
2224 clauseStack_pop (gc.clauses);
2225 gc.inclause = topClause (gc.clauses);
2228 void context_exitForClause (exprNode forPred, exprNode body)
2230 guardSet invGuards = guardSet_invert (exprNode_getForGuards (forPred));
2232 llassert (gc.inclause == FORCLAUSE);
2233 context_setJustPopped ();
2236 ** predicate must be false after while loop (unless there are breaks)
2239 if (context_getFlag (FLG_LOOPEXEC))
2241 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
2245 usymtab_popTrueBranch (forPred, body, FORCLAUSE);
2248 usymtab_addGuards (invGuards);
2249 guardSet_free (invGuards);
2250 clauseStack_pop (gc.clauses);
2251 gc.inclause = topClause (gc.clauses);
2254 static void context_exitClausePlain (void)
2256 llassert (gc.inclause != NOCLAUSE);
2258 if (gc.inclause == FALSECLAUSE)
2260 context_exitClause (exprNode_undefined, exprNode_undefined, exprNode_undefined);
2264 context_exitClauseAux (exprNode_undefined, exprNode_undefined);
2268 void context_exitClause (exprNode pred, exprNode tbranch, exprNode fbranch)
2270 context_setJustPopped ();
2272 if (gc.inclause == FALSECLAUSE)
2274 usymtab_popBranches (pred, tbranch, fbranch, FALSE, FALSECLAUSE);
2276 llassert (clauseStack_top (gc.clauses) == FALSECLAUSE);
2278 clauseStack_pop (gc.clauses);
2279 gc.inclause = topClause (gc.clauses);
2283 context_exitTrueClause (pred, tbranch);
2288 context_returnFunction (void)
2290 usymtab_checkFinalScope (TRUE);
2294 context_exitFunction (void)
2296 if (!context_inFunction () && !context_inMacroConstant ()
2297 && !context_inMacroUnknown ()
2298 && !context_inIterDef () && !context_inIterEnd ())
2301 ** not a bug because of parse errors
2306 if (context_inMacro () && usymtab_inFunctionScope ())
2308 usymtab_exitScope (exprNode_undefined);
2311 if (uentry_hasGlobs (gc.cont.fcn))
2313 exprChecks_checkUsedGlobs (gc.globs, gc.globs_used);
2317 if (uentry_hasMods (gc.cont.fcn))
2319 if (context_getFlag (FLG_MUSTMOD))
2321 exprNode_checkAllMods (gc.mods, gc.cont.fcn);
2325 DPRINTF (("Exit function: %s", uentry_unparse (gc.cont.fcn)));
2328 ** clear file static modifies
2331 /* do this first to get unused error messages */
2333 usymtab_exitScope (exprNode_undefined);
2334 sRef_exitFunctionScope ();
2336 gc.showfunction = FALSE;
2337 gc.kind = CX_GLOBAL;
2338 gc.cont.glob = TRUE;
2340 gc.globs = globSet_new ();
2341 globSet_clear (gc.globs_used);
2342 gc.mods = sRefSet_new ();
2345 llassert (clauseStack_isEmpty (gc.clauses));
2346 llassert (gc.inclause == NOCLAUSE);
2350 context_quietExitFunction (void)
2352 while (gc.kind == CX_INNER)
2354 context_exitInnerPlain ();
2357 if (!context_inFunction () && !context_inMacroConstant () && !context_inMacroUnknown ()
2358 && !context_inIterDef () && !context_inIterEnd ())
2363 usymtab_quietExitScope (g_currentloc);
2365 gc.showfunction = FALSE;
2366 gc.kind = CX_GLOBAL;
2367 gc.cont.glob = TRUE;
2369 gc.globs = globSet_new ();
2370 globSet_clear (gc.globs_used);
2371 gc.mods = sRefSet_new ();
2373 sRef_exitFunctionScope ();
2377 /*@observer@*/ uentryList
2378 context_getParams (void)
2380 if (context_inFunctionLike ())
2382 return (uentry_getParams (gc.cont.fcn));
2386 llcontbug (message ("context_getParams: not in function: %q", context_unparse ()));
2387 return uentryList_undefined;
2391 /*@observer@*/ globSet
2392 context_getUsedGlobs (void)
2394 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2395 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2397 return (gc.globs_used);
2401 context_moduleName ()
2403 return (fileloc_getBase (g_currentloc));
2406 /*@observer@*/ globSet
2407 context_getGlobs (void)
2409 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2410 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2416 context_addBoolAccess (void)
2418 cstring bname = context_getString (FLG_BOOLTYPE);
2419 typeIdSet boolt = typeIdSet_single (usymtab_getTypeId (bname));
2421 addModuleAccess (cstring_copy (bname), boolt);
2423 /* for sys/types (perhaps, this is bogus!) */
2424 addModuleAccess (cstring_makeLiteral ("types"), boolt);
2429 context_canAccessBool (void)
2436 static typeId boolType = typeId_invalid;
2438 if (typeId_isInvalid (boolType))
2440 boolType = usymtab_getTypeId (context_getBoolName ());
2443 if (typeId_isInvalid (boolType)) {
2446 return (typeIdSet_member (gc.acct, boolType));
2451 /* evs 2000-07-25: old version - replaced */
2454 context_boolImplementationType () {
2455 /* For now, this is bogus! */
2460 context_canAccessBool (void)
2462 static typeId boolType = typeId_invalid;
2464 if (typeId_isInvalid (boolType))
2466 boolType = usymtab_getTypeId (context_getBoolName ());
2469 if (!typeId_isInvalid (boolType))
2471 return context_hasAccess (boolType);
2482 context_setMessageAnnote (/*@only@*/ cstring s)
2484 llassert (cstring_isUndefined (gc.msgAnnote));
2489 context_hasMessageAnnote (void)
2491 return (cstring_isDefined (gc.msgAnnote));
2495 context_clearMessageAnnote (void)
2497 if (cstring_isDefined (gc.msgAnnote))
2499 cstring_free (gc.msgAnnote);
2500 gc.msgAnnote = cstring_undefined;
2505 context_getMessageAnnote (void)
2507 cstring st = gc.msgAnnote;
2509 gc.msgAnnote = cstring_undefined;
2514 context_setAliasAnnote (/*@observer@*/ sRef s, /*@observer@*/ sRef t)
2516 llassert (sRef_isInvalid (gc.aliasAnnote));
2517 llassert (!sRef_sameName (s, t));
2519 gc.aliasAnnoteAls = t;
2523 context_hasAliasAnnote (void)
2525 return (sRef_isValid (gc.aliasAnnote));
2529 context_clearAliasAnnote (void)
2531 gc.aliasAnnote = sRef_undefined;
2535 context_getAliasAnnote (void)
2537 sRef ret = gc.aliasAnnote;
2538 sRef als = gc.aliasAnnoteAls;
2540 llassert (sRef_isValid (ret) && sRef_isValid (als));
2542 gc.aliasAnnote = sRef_undefined;
2543 return (message ("%q aliases %q", sRef_unparse (als), sRef_unparse (ret)));
2547 context_recordFileModifies (sRefSet mods)
2549 gc.modrecs = sRefSetList_add (gc.modrecs, mods);
2553 context_recordFileGlobals (globSet mods)
2555 DPRINTF (("Recording file globals: %s", globSet_unparse (mods)));
2556 /*@access globSet@*/ context_recordFileModifies (mods); /*@noaccess globSet@*/
2560 context_setCommentMarkerChar (char c)
2562 llassert (c != '\0');
2564 context_setValue (FLG_COMMENTCHAR, (int) c);
2568 context_getCommentMarkerChar (void)
2570 return ((char) context_getValue (FLG_COMMENTCHAR));
2574 context_setValue (flagcode flag, int val)
2576 int index = flagcode_valueIndex (flag);
2578 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2586 llerror_flagWarning (message ("Value for %s must be a positive "
2587 "number (given %d)",
2588 flagcode_unparse (flag), val));
2591 if (flag == FLG_LINELEN && val < MINLINELEN)
2593 llerror_flagWarning (message ("Value for %s must be at least %d (given %d)",
2594 flagcode_unparse (flag),
2600 case FLG_INCLUDENEST:
2601 case FLG_CONTROLNESTDEPTH:
2602 case FLG_STRINGLITERALLEN:
2603 case FLG_NUMSTRUCTFIELDS:
2604 case FLG_NUMENUMMEMBERS:
2605 case FLG_INDENTSPACES:
2609 llerror_flagWarning (message ("Value for %s must be a non-negative "
2610 "number (given %d)",
2611 flagcode_unparse (flag), val));
2620 gc.values[index] = val;
2624 context_setValueAndFlag (flagcode flag, int val)
2626 gc.flags[flag] = TRUE;
2627 context_setValue (flag, val);
2631 context_getValue (flagcode flag)
2633 int index = flagcode_valueIndex (flag);
2635 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2636 return (gc.values[index]);
2640 context_getCounter (flagcode flag)
2642 int index = flagcode_valueIndex (flag);
2644 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2645 return (gc.counters[index]);
2649 context_incCounter (flagcode flag)
2651 int index = flagcode_valueIndex (flag);
2653 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2655 gc.counters[index]++;
2659 context_decCounter (flagcode flag)
2661 int index = flagcode_valueIndex (flag);
2663 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2664 gc.counters[index]--;
2667 bool context_showFunction (void)
2669 return (gc.showfunction);
2673 context_setString (flagcode flag, cstring val)
2675 int index = flagcode_stringIndex (flag);
2677 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2679 if (flag == FLG_SYSTEMDIRS)
2681 llassert (cstring_isDefined (val));
2683 if (cstring_firstChar (val) == '\"')
2686 cstring tval = cstring_copy (cstring_suffix (val, 1));
2688 if (cstring_lastChar (tval) != '\"')
2690 int n = cstring_length (tval) - 1;
2692 while (isspace ((int) cstring_getChar (tval, n)))
2697 if (cstring_getChar (tval, n) != '\"')
2699 llerror_flagWarning (message ("Setting -systemdirs to string with unmatching quotes: %s", val));
2703 cstring otval = tval;
2704 tval = cstring_prefix (tval, n);
2705 cstring_free (otval);
2709 val = cstring_copy (cstring_clip (tval, cstring_length (tval) - 1));
2710 DPRINTF (("val = %s", val));
2711 cstring_free (tval);
2712 cstring_free (oval);
2716 if (flag == FLG_TMPDIR)
2718 llassert (cstring_isDefined (val));
2720 if (cstring_length (val) == 0)
2723 val = message (".%s", cstring_makeLiteralTemp (CONNECTSTR));
2725 else if (cstring_lastChar (val) != CONNECTCHAR)
2727 val = cstring_appendChar (val, CONNECTCHAR);
2735 if (cstring_length (val) >= 1
2736 && cstring_firstChar (val) == '"')
2738 llerror_flagWarning (message
2739 ("setting %s to string beginning with \". You probably "
2740 "don't meant to have the \"'s.",
2741 flagcode_unparse (flag)));
2744 if (flag == FLG_BOOLTYPE)
2749 gc.strings[index] = val;
2752 static /*@exposed@*/ cstring
2753 context_exposeString (flagcode flag)
2755 int index = flagcode_stringIndex (flag);
2757 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2758 return (gc.strings[index]);
2762 context_getString (flagcode flag)
2764 return (context_exposeString (flag));
2768 context_resetErrors (void)
2773 void context_initMod (void)
2774 /*@globals undef gc; @*/
2776 gc.kind = CX_GLOBAL;
2777 gc.savekind = CX_ERROR;
2778 gc.instandardlib = FALSE;
2781 gc.linesprocessed = 0;
2782 gc.speclinesprocessed = 0;
2783 gc.insuppressregion = FALSE;
2784 gc.macroMissingParams = FALSE;
2785 gc.preprocessing = FALSE;
2786 gc.incommandline = FALSE;
2787 gc.mc = macrocache_create ();
2789 gc.maxmods = DEFAULTMAXMODS;
2790 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
2792 gc.library = FLG_ANSILIB;
2794 gc.locstack = filelocStack_new ();
2795 gc.modrecs = sRefSetList_undefined;
2796 gc.anyExports = FALSE;
2798 gc.ftab = fileTable_create ();
2799 gc.msgLog = messageLog_new ();
2800 gc.inimport = FALSE;
2801 gc.inDerivedFile = FALSE;
2802 gc.inheader = FALSE;
2803 gc.markers = flagMarkerList_new ();
2804 gc.cont.glob = TRUE;
2805 gc.showfunction = FALSE;
2806 gc.msgAnnote = cstring_undefined;
2807 gc.aliasAnnote = sRef_undefined;
2808 gc.aliasAnnoteAls = sRef_undefined;
2809 gc.boolType = ctype_bool;
2810 gc.mods = sRefSet_new ();
2812 gc.saveloc = fileloc_undefined;
2814 gc.inmacrocache = FALSE;
2815 gc.inclause = NOCLAUSE;
2816 gc.clauses = clauseStack_new ();
2817 gc.globs = globSet_new ();
2818 gc.nacct = typeIdSet_emptySet ();
2819 gc.acct = typeIdSet_emptySet ();
2820 gc.facct = typeIdSet_emptySet ();
2821 gc.savedFlags = FALSE;
2822 gc.pushloc = fileloc_undefined;
2823 gc.protectVars = FALSE;
2824 gc.justpopped = FALSE;
2825 gc.isNullGuarded = NO;
2826 gc.globs_used = globSet_undefined;
2830 gc.setGlobally[code] = FALSE;
2831 gc.setLocally[code] = FALSE;
2832 } end_allFlagCodes ;
2836 context_resetAllFlags ();
2837 conext_resetAllCounters ();
2838 context_setMode (DEFAULT_MODE);
2840 gc.stateTable = metaStateTable_create ();
2841 gc.annotTable = annotationTable_create ();
2843 DPRINTF (("Annotations: \n%s",
2844 cstring_toCharsSafe (annotationTable_unparse (gc.annotTable))));
2845 DPRINTF (("State: \n%s",
2846 cstring_toCharsSafe (metaStateTable_unparse (gc.stateTable))));
2851 context_typeofZero (void)
2853 ctype ct = ctype_int;
2855 if (context_getFlag (FLG_ZEROPTR))
2857 ct = ctype_makeConj (ct, ctype_voidPointer);
2860 if (context_getFlag (FLG_ZEROBOOL)) {
2861 ct = ctype_makeConj (ct, ctype_bool);
2868 context_typeofOne (void)
2870 ctype ct = ctype_int;
2872 /* 1 is on longer a bool (was before 2.4)
2873 if (!context_getFlag (FLG_ABSTRACTBOOL))
2875 ct = ctype_makeConj (ct, ctype_bool);
2883 context_unparse (void)
2890 s = message ("LCL File: %q", fileloc_unparse (g_currentloc));
2893 s = message ("LCL Lib File: %q", fileloc_unparse (g_currentloc));
2896 s = message ("Global Context:%q", fileloc_unparse (g_currentloc));
2899 s = message ("Inner Context:%q", fileloc_unparse (g_currentloc));
2902 s = message ("Function %q :%q \n\taccess %q\n\tmodifies %q",
2903 uentry_unparse (gc.cont.fcn),
2904 fileloc_unparse (g_currentloc),
2905 typeIdSet_unparse (gc.acct),
2906 sRefSet_unparse (gc.mods));
2909 s = message ("Function Macro %q", uentry_unparse (gc.cont.fcn));
2911 case CX_UNKNOWNMACRO:
2912 s = message ("Forward Specified Macro %q", uentry_unparse (gc.cont.fcn));
2915 s = message ("Constant Macro %q", uentry_unparse (gc.cont.fcn));
2918 s = message ("Iter definition %q", uentry_unparse (gc.cont.fcn));
2921 s = message ("Iter end %q", uentry_unparse (gc.cont.fcn));
2924 s = message ("Un-unparseable context: %d", (int) gc.kind);
2928 s = message ("%q\naccess: %q", s, context_unparseAccess ());
2933 context_currentFunctionType (void)
2935 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
2937 return (uentry_getType (gc.cont.fcn));
2939 else if (gc.kind == CX_INNER)
2941 llcontbuglit ("context_currentFunctionType: inner context");
2942 do { context_exitInnerPlain (); } while (gc.kind == CX_INNER);
2943 return (context_currentFunctionType ());
2947 llcontbuglit ("context_currentFunctionType: not in function");
2948 return (ctype_undefined);
2953 context_enterInnerContext (void)
2955 if (gc.kind == CX_GLOBAL)
2960 else if (gc.kind == CX_INNER)
2970 usymtab_enterScope ();
2971 pushClause (NOCLAUSE);
2975 context_exitInnerPlain (void) /*@modifies gc;@*/
2977 context_exitInner (exprNode_undefined);
2981 context_exitInner (exprNode exp)
2984 llassertprint (gc.inclause == NOCLAUSE || gc.inclause == CASECLAUSE,
2985 ("inclause = %s", clause_nameTaken (gc.inclause)));
2987 clauseStack_removeFirst (gc.clauses, NOCLAUSE);
2988 gc.inclause = topClause (gc.clauses);
2990 if (gc.kind == CX_INNER)
2992 if (--gc.cont.cdepth == 0)
2994 gc.kind = CX_GLOBAL;
2995 gc.cont.glob = TRUE;
3000 if (gc.kind == CX_GLOBAL)
3002 llcontbuglit ("Attempt to exit global context");
3007 usymtab_exitScope (exp);
3012 context_enterStructInnerContext (void)
3014 if (gc.kind == CX_GLOBAL)
3019 else if (gc.kind == CX_INNER)
3028 usymtab_enterScope ();
3032 context_exitStructInnerContext (void)
3034 if (gc.kind == CX_INNER)
3036 if (--gc.cont.cdepth == 0)
3038 gc.kind = CX_GLOBAL;
3039 gc.cont.glob = TRUE;
3044 if (gc.kind == CX_GLOBAL)
3046 llcontbuglit ("Attempt to exit global context");
3051 usymtab_exitScope (exprNode_undefined);
3055 context_exitInnerSafe (void)
3058 if (gc.kind == CX_INNER)
3060 if (--gc.cont.cdepth == 0)
3065 else if (gc.kind == CX_GLOBAL)
3067 llcontbuglit ("Attempt to exit global context");
3072 if (usymtab_inDeepScope ())
3074 usymtab_exitScope (exprNode_undefined);
3080 void setModuleAccess (void)
3082 gc.facct = typeIdSet_emptySet ();
3084 if (fileId_isValid (currentFile ()))
3086 cstring baseName = fileloc_getBase (g_currentloc);
3088 if (context_getFlag (FLG_ACCESSFILE))
3090 if (usymtab_existsType (baseName))
3092 gc.facct = typeIdSet_insert (gc.facct,
3093 usymtab_getTypeId (baseName));
3101 if (context_getFlag (FLG_ACCESSMODULE))
3104 bool hasaccess = FALSE;
3106 for (i = 0; i < gc.nmods; i++)
3108 if (cstring_equal (baseName, gc.moduleaccess[i].file))
3110 gc.facct = typeIdSet_union (gc.facct, gc.moduleaccess[i].daccess);
3119 gc.inheader = fileId_isHeader (currentFile ());
3123 llcontbuglit ("Current file not defined\n");
3124 gc.facct = typeIdSet_emptySet ();
3126 gc.inheader = FALSE;
3129 /* 17 Jan 1995: forgot to clear nacct */
3131 gc.nacct = typeIdSet_emptySet ();
3135 context_enterFileAux (void)
3141 context_enterFile (void)
3143 context_enterFileAux ();
3144 usymtab_enterFile ();
3148 context_enterMacroFile (void)
3150 context_enterFileAux ();
3154 context_inFunction (void)
3156 kcontext ck = gc.kind;
3158 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN) || (ck == CX_INNER));
3162 context_inFunctionLike (void)
3164 return (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
3165 || gc.kind == CX_FCNDECLARATION
3166 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
3170 context_inRealFunction (void)
3172 kcontext ck = gc.kind;
3174 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN));
3178 context_processAllMacros (void)
3180 usymtab_enterFile ();
3182 gc.inmacrocache = TRUE;
3183 macrocache_processUndefinedElements (gc.mc);
3185 usymtab_exitFile ();
3187 gc.inmacrocache = FALSE;
3188 macrocache_finalize ();
3192 ** this happens once at the end of each C file
3194 ** check each Macro that was defined in current file.c or current file.h
3199 context_processMacros (void)
3201 if (fileId_isValid (currentFile ()))
3204 cstring cbase = fileLib_removePathFree (fileLib_removeAnyExtension (fileName (currentFile ())));
3206 gc.inmacrocache = TRUE;
3208 DPRINTF (("Processing macros: %s", cbase));
3209 lastfl = macrocache_processFileElements (gc.mc, cbase);
3210 DPRINTF (("Processing macros: %s", fileloc_unparse (lastfl)));
3212 cstring_free (cbase);
3214 if (fileloc_isDefined (lastfl))
3216 g_currentloc = fileloc_update (g_currentloc, lastfl);
3220 gc.inmacrocache = FALSE;
3225 context_processingMacros (void)
3227 return (gc.inmacrocache);
3231 context_exitCFile (void)
3233 if (gc.kind != CX_GLOBAL)
3236 (cstring_makeLiteral ("File ended outside global scope"));
3239 if (gc.insuppressregion)
3241 /* gack...don't reverse the order of these lines! ;-> */
3242 gc.insuppressregion = FALSE;
3243 llerrorlit (FLG_SYNTAX,
3244 "File ended in ignore errors region, "
3245 "possible missing /*@end*/");
3248 /* fix up parse errors */
3250 while (!usymtab_inFileScope ())
3252 usymtab_quietExitScope (g_currentloc);
3256 ** Clear the file-specific modifies information.
3259 sRefSetList_elements (gc.modrecs, mods)
3261 sRefSet_clearStatics (mods);
3262 } end_sRefSetList_elements ;
3264 sRefSetList_clear (gc.modrecs);
3266 context_processMacros ();
3269 usymtab_exitFile ();
3271 gc.inDerivedFile = FALSE;
3272 filelocStack_clear (gc.locstack);
3274 gc.nacct = typeIdSet_emptySet (); /* empty noaccess */
3276 gc.cont.glob = TRUE;
3280 context_restoreFlagSettings ();
3281 gc.savedFlags = FALSE;
3285 DPRINTF (("After exiting file: "));
3286 usymtab_printAll ();
3291 context_exitMacroCache (void)
3293 if (gc.kind != CX_GLOBAL)
3295 if (context_inMacro ())
3296 /* this is okay, file could end without newline in macro */
3298 DPRINTF (("Still in macro: %s",
3299 context_unparse ()));
3300 context_exitFunction ();
3304 llcontbug (message ("context_exitMacroCache: outside global scope: %q",
3305 context_unparse ()));
3306 gc.kind = CX_GLOBAL;
3311 ** no longer valid here
3312 ** if (gc.insuppressregion)
3314 ** gc.insuppressregion = FALSE;
3315 ** llerror ("File ended in ignore errors region, possible missing @");
3319 gc.cont.glob = TRUE;
3323 context_saveLocation (void)
3325 /* was llassert (fileloc_isUndefined (gc.saveloc)) */
3326 fileloc_free (gc.saveloc);
3329 gc.saveloc = fileloc_copy (g_currentloc);
3333 context_getSaveLocation (void)
3335 fileloc fl = gc.saveloc;
3337 gc.saveloc = fileloc_undefined;
3341 /*@observer@*/ cstring
3342 context_inFunctionName (void)
3344 if (gc.kind == CX_FUNCTION
3345 || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO
3346 || gc.kind == CX_MACROCONST
3347 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND)
3349 return (uentry_rawName (gc.cont.fcn));
3353 llcontbuglit ("context_inFunctionName: not in function");
3354 return (cstring_undefined);
3359 context_userSetFlag (flagcode f, bool b)
3361 DPRINTF (("set flag: %s", flagcode_unparse (f)));
3363 if (f == FLG_NEVERINCLUDE && b)
3365 if (gc.flags[FLG_EXPORTHEADER])
3367 llerror_flagWarning (cstring_makeLiteral
3368 ("setting +neverinclude after +exportheader. "
3369 "Turning off exportheader, since headers are not checked "
3370 "when +neverinclude is used."));
3372 gc.flags[FLG_EXPORTHEADER] = FALSE;
3377 if (f == FLG_EXPORTHEADER && b)
3379 if (gc.flags[FLG_NEVERINCLUDE])
3381 llerror_flagWarning (cstring_makeLiteral
3382 ("setting +exportheader after +neverinclude. "
3383 "Not setting exportheader, since headers are not checked "
3384 "when +neverinclude is used."));
3385 gc.flags[FLG_EXPORTHEADER] = FALSE;
3391 if (context_getFlag (FLG_WARNFLAGS) && f != FLG_NOF && f != FLG_OPTF)
3393 bool lastsetting = context_getFlag (f);
3395 if (bool_equal (lastsetting, b)
3396 && !flagcode_isSpecialFlag (f)
3397 && !flagcode_isIdemFlag (f)
3398 && !flagcode_hasArgument (f))
3400 llerror_flagWarning (message ("setting %s%s redundant with current value",
3401 cstring_makeLiteralTemp (b ? "+" : "-"),
3402 flagcode_unparse (f)));
3406 if (flagcode_isWarnUseFlag (f) && b)
3408 if (!context_getFlag (FLG_WARNUSE))
3410 llerror_flagWarning (message ("flag +%s is canceled by -warnuse",
3411 flagcode_unparse (f)));
3417 if (flagcode_isLibraryFlag (f))
3419 if (gc.library != FLG_ANSILIB
3422 llerror_flagWarning (message ("selecting library %s after library %s was "
3423 "selected (only one library may be used)",
3424 flagcode_unparse (f),
3425 flagcode_unparse (gc.library)));
3428 if (f == FLG_UNIXLIB)
3430 if (context_getFlag (FLG_WARNUNIXLIB))
3432 llerror_flagWarning (cstring_makeLiteral
3433 ("selecting unix library. Unix library is "
3434 "ad hoc addition to POSIX library. Recommend "
3435 "use +posixlib to select POSIX library instead. "
3436 "Use -warnunixlib to suppress this message."));
3443 if (flagcode_isNameChecksFlag (f) && b && !context_maybeSet (FLG_NAMECHECKS))
3445 llerror_flagWarning (message
3446 ("setting +%s will not produce warnings with -namechecks. Must set +namechecks also.",
3447 flagcode_unparse (f)));
3450 gc.setGlobally[f] = TRUE;
3451 context_setFlag (f, b);
3455 context_fileSetFlag (flagcode f, ynm set)
3459 context_saveFlagSettings ();
3462 if (ynm_isOff (set))
3464 context_setFlagAux (f, FALSE, TRUE, FALSE);
3466 else if (ynm_isOn (set))
3468 context_setFlagAux (f, TRUE, TRUE, FALSE);
3469 gc.setLocally[f] = TRUE;
3473 context_restoreFlag (f);
3478 context_restoreFlag (flagcode f)
3485 message ("Attempt to restore flag %s when no file scope flags "
3487 flagcode_unparse (f)),
3492 context_addFlagMarker (f, MAYBE);
3493 context_setFlagAux (f, gc.saveflags[f], FALSE, TRUE);
3499 context_setFlag (flagcode f, bool b)
3501 context_setFlagAux (f, b, FALSE, FALSE);
3505 context_setFlagTemp (flagcode f, bool b)
3507 DPRINTF (("Set flag temp: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3512 # define DOSET(ff,b) \
3513 do { if (inFile) { gc.setLocally[ff] = TRUE; \
3514 context_addFlagMarker (ff, ynm_fromBool (b)); } \
3515 DPRINTF (("set flag: %s / %s", flagcode_unparse (ff), bool_unparse (b))); \
3516 gc.flags[ff] = b; } while (FALSE)
3519 context_setFlagAux (flagcode f, bool b, bool
3520 inFile, /*@unused@*/ bool isRestore)
3522 DPRINTF (("set flag: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3524 if (f == FLG_USESTDERR)
3527 g_msgstream = stderr;
3529 g_msgstream = stdout;
3534 ** Removed test for special flags.
3537 if (flagcode_isIdemFlag (f))
3546 if (f >= FLG_ITS4MOSTRISKY && f <= FLG_ITS4LOWRISK)
3548 if (b) /* Turing higher level on, turns on all lower levels */
3552 case FLG_ITS4MOSTRISKY:
3553 DOSET (FLG_ITS4VERYRISKY, b);
3555 case FLG_ITS4VERYRISKY:
3556 DOSET (FLG_ITS4RISKY, b);
3559 DOSET (FLG_ITS4MODERATERISK, b);
3561 case FLG_ITS4MODERATERISK:
3562 DOSET (FLG_ITS4LOWRISK, b);
3564 case FLG_ITS4LOWRISK:
3569 else /* Turning level off, turns off all higher levels */
3573 case FLG_ITS4LOWRISK:
3574 DOSET (FLG_ITS4MODERATERISK, b);
3576 case FLG_ITS4MODERATERISK:
3577 DOSET (FLG_ITS4RISKY, b);
3580 DOSET (FLG_ITS4VERYRISKY, b);
3582 case FLG_ITS4VERYRISKY:
3583 DOSET (FLG_ITS4MOSTRISKY, b);
3585 case FLG_ITS4MOSTRISKY:
3595 DOSET (FLG_ALLEMPTY, b);
3596 DOSET (FLG_IFEMPTY, b);
3597 DOSET (FLG_WHILEEMPTY, b);
3598 DOSET (FLG_FOREMPTY, b);
3601 DOSET (FLG_PREDBOOL, b);
3602 DOSET (FLG_PREDBOOLINT, b);
3603 DOSET (FLG_PREDBOOLPTR, b);
3604 DOSET (FLG_PREDBOOLOTHERS, b);
3607 DOSET (FLG_CHECKSTRICTGLOBALIAS, b);
3608 DOSET (FLG_CHECKEDGLOBALIAS, b);
3609 DOSET (FLG_CHECKMODGLOBALIAS, b);
3610 DOSET (FLG_UNCHECKEDGLOBALIAS, b);
3613 DOSET (FLG_ALLBLOCK, b);
3614 DOSET (FLG_IFBLOCK, b);
3615 DOSET (FLG_WHILEBLOCK, b);
3616 DOSET (FLG_FORBLOCK, b);
3630 DOSET (FLG_GRAMMAR, b);
3632 case FLG_CODEIMPONLY:
3633 DOSET (FLG_CODEIMPONLY, b);
3634 DOSET (FLG_GLOBIMPONLY, b);
3635 DOSET (FLG_RETIMPONLY, b);
3636 DOSET (FLG_STRUCTIMPONLY, b);
3638 case FLG_SPECALLIMPONLY:
3639 DOSET (FLG_SPECALLIMPONLY, b);
3640 DOSET (FLG_SPECGLOBIMPONLY, b);
3641 DOSET (FLG_SPECRETIMPONLY, b);
3642 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3644 case FLG_ALLIMPONLY:
3645 DOSET (FLG_ALLIMPONLY, b);
3646 DOSET (FLG_GLOBIMPONLY, b);
3647 DOSET (FLG_RETIMPONLY, b);
3648 DOSET (FLG_STRUCTIMPONLY, b);
3649 DOSET (FLG_SPECGLOBIMPONLY, b);
3650 DOSET (FLG_SPECRETIMPONLY, b);
3651 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3653 case FLG_ANSILIMITS:
3654 DOSET (FLG_ANSILIMITS, b);
3655 DOSET (FLG_CONTROLNESTDEPTH, b);
3656 DOSET (FLG_STRINGLITERALLEN, b);
3657 DOSET (FLG_INCLUDENEST, b);
3658 DOSET (FLG_NUMSTRUCTFIELDS, b);
3659 DOSET (FLG_NUMENUMMEMBERS, b);
3663 context_setValue (FLG_CONTROLNESTDEPTH, DEFAULT_CONTROLNESTDEPTH);
3664 context_setValue (FLG_STRINGLITERALLEN, DEFAULT_STRINGLITERALLEN);
3665 context_setValue (FLG_INCLUDENEST, DEFAULT_INCLUDENEST);
3666 context_setValue (FLG_NUMSTRUCTFIELDS, DEFAULT_NUMSTRUCTFIELDS);
3667 context_setValue (FLG_NUMENUMMEMBERS, DEFAULT_NUMENUMMEMBERS);
3670 case FLG_EXTERNALNAMELEN:
3671 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3672 DOSET (FLG_EXTERNALNAMELEN, TRUE);
3674 case FLG_INTERNALNAMELEN:
3675 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3676 DOSET (FLG_INTERNALNAMELEN, TRUE);
3678 case FLG_EXTERNALNAMECASEINSENSITIVE:
3679 DOSET (FLG_EXTERNALNAMECASEINSENSITIVE, b);
3681 if (b && !gc.flags[FLG_DISTINCTEXTERNALNAMES])
3683 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3684 context_setValue (FLG_EXTERNALNAMELEN, 0);
3687 case FLG_INTERNALNAMECASEINSENSITIVE:
3688 DOSET (FLG_INTERNALNAMECASEINSENSITIVE, b);
3690 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3692 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3693 context_setValue (FLG_INTERNALNAMELEN, 0);
3696 case FLG_INTERNALNAMELOOKALIKE:
3697 DOSET (FLG_INTERNALNAMELOOKALIKE, b);
3699 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3701 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3702 context_setValue (FLG_INTERNALNAMELEN, 0);
3706 DOSET (FLG_MODNOMODS, b);
3707 DOSET (FLG_MODGLOBSUNSPEC, b);
3708 DOSET (FLG_MODSTRICTGLOBSUNSPEC, b);
3711 DOSET (FLG_EXPORTVAR, b);
3712 DOSET (FLG_EXPORTFCN, b);
3713 DOSET (FLG_EXPORTTYPE, b);
3714 DOSET (FLG_EXPORTMACRO, b);
3715 DOSET (FLG_EXPORTCONST, b);
3716 gc.anyExports = TRUE;
3719 DOSET (FLG_RETEXPOSE, b);
3720 DOSET (FLG_ASSIGNEXPOSE, b);
3721 DOSET (FLG_CASTEXPOSE, b);
3724 DOSET (FLG_RETVALBOOL, b);
3725 DOSET (FLG_RETVALINT, b);
3726 DOSET (FLG_RETVALOTHER, b);
3731 DOSET (FLG_EXPORTLOCAL, FALSE);
3732 DOSET (FLG_DECLUNDEF, FALSE);
3733 DOSET (FLG_SPECUNDEF, FALSE);
3734 DOSET (FLG_TOPUNUSED, FALSE);
3738 DOSET (FLG_LOOPLOOPBREAK, b);
3739 DOSET (FLG_LOOPSWITCHBREAK, b);
3740 DOSET (FLG_SWITCHLOOPBREAK, b);
3741 DOSET (FLG_SWITCHSWITCHBREAK, b);
3742 DOSET (FLG_LOOPLOOPCONTINUE, b);
3743 DOSET (FLG_DEEPBREAK, b);
3746 DOSET (FLG_ACCESSMODULE, b);
3747 DOSET (FLG_ACCESSFILE, b);
3748 DOSET (FLG_ACCESSCZECH, b);
3751 DOSET (FLG_ALLMACROS, b);
3752 DOSET (FLG_FCNMACROS, b);
3753 DOSET (FLG_CONSTMACROS, b);
3756 if (b) { DOSET (FLG_ACCESSCZECH, b); }
3757 DOSET (FLG_CZECHFUNCTIONS, b);
3758 DOSET (FLG_CZECHVARS, b);
3759 DOSET (FLG_CZECHCONSTANTS, b);
3760 DOSET (FLG_CZECHTYPES, b);
3763 if (b) { DOSET (FLG_ACCESSSLOVAK, b); }
3764 DOSET (FLG_SLOVAKFUNCTIONS, b);
3765 DOSET (FLG_SLOVAKVARS, b);
3766 DOSET (FLG_SLOVAKCONSTANTS, b);
3767 DOSET (FLG_SLOVAKTYPES, b);
3769 case FLG_CZECHOSLOVAK:
3770 if (b) { DOSET (FLG_ACCESSCZECHOSLOVAK, b); }
3771 DOSET (FLG_CZECHOSLOVAKFUNCTIONS, b);
3772 DOSET (FLG_CZECHOSLOVAKVARS, b);
3773 DOSET (FLG_CZECHOSLOVAKCONSTANTS, b);
3774 DOSET (FLG_CZECHOSLOVAKTYPES, b);
3777 DOSET (FLG_NULLSTATE, b);
3778 DOSET (FLG_NULLDEREF, b);
3779 DOSET (FLG_NULLASSIGN, b);
3780 DOSET (FLG_NULLPASS, b);
3781 DOSET (FLG_NULLRET, b);
3784 DOSET (FLG_NULLSTATE, b);
3785 DOSET (FLG_NULLDEREF, b);
3786 DOSET (FLG_NULLASSIGN, b);
3787 DOSET (FLG_NULLPASS, b);
3788 DOSET (FLG_NULLRET, b);
3789 DOSET (FLG_COMPDEF, b);
3790 DOSET (FLG_COMPMEMPASS, b);
3791 DOSET (FLG_UNIONDEF, b);
3792 DOSET (FLG_MEMTRANS, b);
3793 DOSET (FLG_USERELEASED, b);
3794 DOSET (FLG_ALIASUNIQUE, b);
3795 DOSET (FLG_MAYALIASUNIQUE, b);
3796 DOSET (FLG_MUSTFREE, b);
3797 DOSET (FLG_MUSTDEFINE, b);
3798 DOSET (FLG_GLOBSTATE, b);
3799 DOSET (FLG_COMPDESTROY, b);
3800 DOSET (FLG_MUSTNOTALIAS, b);
3801 DOSET (FLG_MEMIMPLICIT, b);
3802 DOSET (FLG_BRANCHSTATE, b);
3803 /*@fallthrough@*/ /* also sets memtrans flags */
3805 DOSET (FLG_MEMTRANS, b);
3806 DOSET (FLG_EXPOSETRANS, b);
3807 DOSET (FLG_OBSERVERTRANS, b);
3808 DOSET (FLG_DEPENDENTTRANS, b);
3809 DOSET (FLG_NEWREFTRANS, b);
3810 DOSET (FLG_ONLYTRANS, b);
3811 DOSET (FLG_OWNEDTRANS, b);
3812 DOSET (FLG_FRESHTRANS, b);
3813 DOSET (FLG_SHAREDTRANS, b);
3814 DOSET (FLG_TEMPTRANS, b);
3815 DOSET (FLG_KEPTTRANS, b);
3816 DOSET (FLG_REFCOUNTTRANS, b);
3817 DOSET (FLG_STATICTRANS, b);
3818 DOSET (FLG_UNKNOWNTRANS, b);
3819 DOSET (FLG_KEEPTRANS, b);
3820 DOSET (FLG_IMMEDIATETRANS, b);
3827 if (b && !gc.anyExports
3828 && (f == FLG_EXPORTVAR || f == FLG_EXPORTFCN
3829 || f == FLG_EXPORTTYPE || f == FLG_EXPORTMACRO
3830 || f == FLG_EXPORTCONST
3831 || f == FLG_EXPORTANY))
3833 gc.anyExports = TRUE;
3838 context_maybeSet (flagcode d)
3840 return (gc.flags[d] || gc.setLocally[d]);
3844 context_getFlag (flagcode d)
3846 return (gc.flags[d]);
3850 context_flagOn (flagcode f, fileloc loc)
3852 return (!context_suppressFlagMsg (f, loc));
3855 static void context_saveFlagSettings (void)
3857 gc.savedFlags = TRUE;
3858 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
3859 memcpy (gc.saveflags, gc.flags, sizeof (gc.flags));
3862 static void context_restoreFlagSettings (void)
3864 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
3865 memcpy (gc.flags, gc.saveflags, sizeof (gc.flags));
3866 gc.savedFlags = FALSE;
3869 void context_setFilename (fileId fid, int lineno)
3870 /*@globals fileloc g_currentloc;@*/
3871 /*@modifies g_currentloc@*/
3873 if (fileId_baseEqual (currentFile (), fid))
3880 fileloc_setColumn (g_currentloc, 0);
3882 if (fileloc_isSpecialFile (g_currentloc))
3884 gc.inDerivedFile = TRUE;
3887 if (filelocStack_popPushFile (gc.locstack, g_currentloc))
3889 int maxdepth = context_getValue (FLG_INCLUDENEST);
3891 if (filelocStack_size (gc.locstack) > maxdepth)
3893 int depth = filelocStack_includeDepth (gc.locstack);
3895 if (depth > maxdepth)
3899 message ("Maximum include nesting depth "
3900 "(%d, current depth %d) exceeded",
3903 filelocStack_nextTop (gc.locstack)))
3905 filelocStack_printIncludes (gc.locstack);
3911 g_currentloc = fileloc_create (fid, lineno, 1);
3912 gc.inheader = fileId_isHeader (currentFile ());
3914 context_enterFileAux ();
3918 void context_enterIterDef (/*@observer@*/ uentry le)
3920 context_enterMacro (le);
3921 gc.acct = typeIdSet_subtract (gc.facct, gc.nacct);
3922 gc.kind = CX_ITERDEF;
3925 void context_enterIterEnd (/*@observer@*/ uentry le)
3927 context_enterMacro (le);
3928 gc.kind = CX_ITEREND;
3932 context_destroyMod (void)
3933 /*@globals killed gc@*/
3936 ctype_destroyMod ();
3940 fileTable_free (gc.ftab);
3941 filelocStack_free (gc.locstack);
3943 gc.ftab = fileTable_undefined;
3945 macrocache_free (gc.mc);
3946 sfree (gc.moduleaccess);
3949 fileloc_free (gc.saveloc); gc.saveloc = fileloc_undefined;
3950 fileloc_free (gc.pushloc); gc.pushloc = fileloc_undefined;
3953 sRefSetList_free (gc.modrecs);
3955 flagMarkerList_free (gc.markers);
3957 messageLog_free (gc.msgLog);
3959 clauseStack_free (gc.clauses);
3962 cstring_free (gc.msgAnnote);
3963 globSet_free (gc.globs_used);
3964 metaStateTable_free (gc.stateTable);
3965 annotationTable_free (gc.annotTable);
3972 bool context_msgBoolInt (void)
3974 return gc.flags [FLG_BOOLINT];
3977 bool context_msgCharInt (void)
3979 return gc.flags [FLG_CHARINT];
3982 bool context_msgEnumInt (void)
3984 return gc.flags [FLG_ENUMINT];
3987 bool context_msgPointerArith (void)
3989 return gc.flags [FLG_POINTERARITH];
3992 bool context_msgStrictOps (void)
3994 return gc.flags [FLG_STRICTOPS];
3998 bool context_msgLh (void)
4000 return gc.flags [FLG_DOLH];
4004 void context_pushLoc (void)
4006 fileloc_free (gc.pushloc);
4007 gc.pushloc = gc.saveloc;
4008 gc.saveloc = fileloc_undefined;
4011 void context_popLoc (void)
4013 gc.saveloc = fileloc_update (gc.saveloc, gc.pushloc);
4016 bool context_inGlobalScope (void)
4018 return (usymtab_inFileScope() || usymtab_inGlobalScope ());
4021 bool context_inInnerScope (void)
4023 return (gc.kind == CX_INNER);
4026 void context_setProtectVars (void)
4028 gc.protectVars = TRUE;
4031 bool context_anyErrors (void)
4033 return (gc.numerrors > 0);
4036 void context_hasError (void)
4041 int context_numErrors (void)
4043 return gc.numerrors;
4046 bool context_neednl (void)
4051 void context_setNeednl (void)
4056 int context_getExpect (void)
4058 return (context_getValue (FLG_EXPECT));
4062 int context_getLCLExpect (void)
4064 return (context_getValue (FLG_LCLEXPECT));
4068 int context_getLimit (void)
4070 return (context_getValue (FLG_LIMIT));
4073 bool context_unlimitedMessages (void)
4075 return (context_getLimit () < 0);
4078 void context_releaseVars (void)
4080 llassert (gc.protectVars);
4081 gc.protectVars = FALSE;
4084 void context_sizeofReleaseVars (void)
4086 /* If there is a nested sizeof, this might not hold:
4087 llassert (gc.protectVars);
4090 gc.protectVars = FALSE;
4093 bool context_inProtectVars (void)
4095 return (gc.protectVars);
4098 void context_hideShowscan (void)
4100 gc.flags[FLG_SHOWSCAN] = FALSE;
4103 void context_unhideShowscan (void)
4105 gc.flags[FLG_SHOWSCAN] = TRUE;
4108 bool context_inHeader (void)
4110 return (gc.inheader);
4113 fileTable context_fileTable (void)
4118 cstring context_tmpdir (void)
4120 return (context_getString (FLG_TMPDIR));
4123 messageLog context_messageLog (void)
4128 bool context_inMacroFunction (void)
4130 return (gc.kind == CX_MACROFCN);
4133 bool context_inMacroConstant (void)
4135 return (gc.kind == CX_MACROCONST);
4138 bool context_inMacroUnknown (void)
4140 return (gc.kind == CX_UNKNOWNMACRO);
4143 void context_setShownFunction (void)
4145 gc.showfunction = FALSE;
4148 bool context_doDump (void)
4150 return cstring_isNonEmpty (context_getString (FLG_DUMP));
4153 bool context_doMerge (void)
4155 return cstring_isNonEmpty (context_getString (FLG_MERGE));
4158 cstring context_getDump (void)
4160 return context_getString (FLG_DUMP);
4163 cstring context_getMerge (void)
4165 return context_getString (FLG_MERGE);
4169 bool context_inLCLLib (void)
4171 return (gc.kind == CX_LCLLIB);
4174 bool context_inImport (void)
4176 return (gc.inimport);
4179 void context_enterImport (void)
4184 void context_leaveImport (void)
4186 gc.inimport = FALSE;
4190 bool context_inMacro (void)
4192 return (gc.kind == CX_MACROFCN || gc.kind == CX_MACROCONST
4193 || gc.kind == CX_UNKNOWNMACRO
4194 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND);
4197 bool context_inIterDef (void)
4199 return (gc.kind == CX_ITERDEF);
4202 bool context_inIterEnd (void)
4204 return (gc.kind == CX_ITEREND);
4207 int context_getLinesProcessed (void)
4209 return (gc.linesprocessed);
4212 int context_getSpecLinesProcessed (void)
4214 return (gc.speclinesprocessed);
4218 void context_processedSpecLine (void)
4220 gc.speclinesprocessed++;
4223 void context_resetSpecLines (void)
4225 gc.speclinesprocessed = 0;
4229 bool context_inGlobalContext (void)
4231 return (gc.kind == CX_GLOBAL);
4234 void context_setFileId (fileId s)
4236 g_currentloc = fileloc_updateFileId (g_currentloc, s);
4239 bool context_setBoolName (void)
4241 return (!cstring_equalLit (context_getString (FLG_BOOLTYPE),
4245 cstring context_printBoolName (void)
4247 if (context_setBoolName ())
4249 return context_getBoolName ();
4253 return cstring_makeLiteralTemp ("boolean");
4257 cstring context_getBoolName (void)
4259 return (context_getString (FLG_BOOLTYPE));
4262 cstring context_getFalseName (void)
4264 return (context_getString (FLG_BOOLFALSE));
4267 cstring context_getTrueName (void)
4269 return (context_getString (FLG_BOOLTRUE));
4272 cstring context_getLarchPath (void)
4274 return (context_getString (FLG_LARCHPATH));
4277 cstring context_getLCLImportDir (void)
4279 return (context_getString (FLG_LCLIMPORTDIR));
4282 static void context_setJustPopped (void)
4284 gc.justpopped = TRUE;
4287 void context_clearJustPopped (void)
4289 gc.justpopped = FALSE;
4292 bool context_justPopped (void)
4294 return (gc.justpopped);
4297 void context_setMacroMissingParams (void)
4299 gc.macroMissingParams = TRUE;
4302 void context_resetMacroMissingParams (void)
4304 gc.macroMissingParams = FALSE;
4307 bool context_isMacroMissingParams (void)
4309 return (gc.macroMissingParams);
4312 void context_showFilelocStack (void)
4314 filelocStack_printIncludes (gc.locstack);
4317 metaStateTable context_getMetaStateTable (void)
4319 return gc.stateTable;
4322 metaStateInfo context_lookupMetaStateInfo (cstring key)
4324 return metaStateTable_lookup (gc.stateTable, key);
4327 /*@null@*/ annotationInfo context_lookupAnnotation (cstring annot)
4329 annotationInfo ainfo;
4331 ainfo = annotationTable_lookup (gc.annotTable, annot);
4336 void context_addAnnotation (annotationInfo ainfo)
4338 if (annotationTable_contains (gc.annotTable, annotationInfo_getName (ainfo)))
4342 message ("Duplicate annotation declaration: %s", annotationInfo_getName (ainfo)),
4343 annotationInfo_getLoc (ainfo));
4345 annotationInfo_free (ainfo);
4349 annotationTable_insert (gc.annotTable, ainfo);
4353 void context_addMetaState (cstring mname, metaStateInfo msinfo)
4355 if (metaStateTable_contains (gc.stateTable, mname))
4359 message ("Duplicate metastate declaration: %s", mname),
4360 metaStateInfo_getLoc (msinfo));
4361 cstring_free (mname);
4362 metaStateInfo_free (msinfo);
4366 DPRINTF (("Adding meta state: %s", mname));
4367 metaStateTable_insert (gc.stateTable, mname, msinfo);
4371 valueTable context_createValueTable (sRef s)
4373 if (metaStateTable_size (gc.stateTable) > 0)
4375 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4376 /*@i32 should use smaller value... */
4377 DPRINTF (("Value table for: %s", sRef_unparse (s)));
4379 metaStateTable_elements (gc.stateTable, msname, msi)
4381 mtContextNode context = metaStateInfo_getContext (msi);
4383 if (mtContextNode_matchesRefStrict (context, s))
4385 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4386 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4390 cstring_copy (metaStateInfo_getName (msi)),
4391 stateValue_createImplicit (metaStateInfo_getDefaultValue (msi, s),
4392 stateInfo_undefined));
4396 DPRINTF (("No match: %s", metaStateInfo_unparse (msi)));
4399 end_metaStateTable_elements ;
4401 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4406 return valueTable_undefined;
4410 valueTable context_createGlobalMarkerValueTable ()
4412 if (metaStateTable_size (gc.stateTable) > 0)
4414 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4415 /*@i32 should use smaller value... */
4417 metaStateTable_elements (gc.stateTable, msname, msi)
4419 /*@i23 only add global...*/
4420 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4421 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4423 valueTable_insert (res,
4424 cstring_copy (metaStateInfo_getName (msi)),
4425 stateValue_create (metaStateInfo_getDefaultGlobalValue (msi),
4426 stateInfo_undefined));
4428 end_metaStateTable_elements ;
4430 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4435 return valueTable_undefined;