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"
40 # include "usymtab_interface.h"
43 # include "exprChecks.h"
44 # include "filelocStack.h"
45 # include "fileIdList.h"
51 extern /*@external@*/ int yydebug;
52 extern /*@external@*/ int mtdebug;
64 CX_FUNCTION, CX_FCNDECLARATION,
65 CX_MACROFCN, CX_MACROCONST, CX_UNKNOWNMACRO,
66 CX_ITERDEF, CX_ITEREND,
67 CX_OLDSTYLESCOPE, /* Parsing old-style parameter declarations */
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;
98 bool inFunctionHeader BOOLBITS;
111 filelocStack locstack;
114 /*@observer@*/ sRef aliasAnnote;
115 /*@observer@*/ sRef aliasAnnoteAls;
119 /*@observer@*/ sRefSet mods;
121 /* file access types */
124 /* local access types (this function) */
127 /* no access types (@noaccess) */
130 /*@observer@*/ globSet globs;
131 /*@only@*/ globSet globs_used;
135 /*@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 union u_cont savecont;
165 static /*@exposed@*/ cstring context_exposeString (flagcode p_flag) ;
166 static void context_restoreFlagSettings (void) /*@modifies gc@*/ ;
167 static void context_saveFlagSettings (void) /*@modifies gc@*/ ;
168 static void context_exitClauseAux (exprNode p_pred, exprNode p_tbranch)
170 static void context_exitClauseSimp (void) /*@modifies gc@*/ ;
171 static void context_exitClausePlain (void) /*@modifies gc@*/ ;
172 static void context_setJustPopped (void) /*@modifies gc.justpopped@*/ ;
173 static void context_setValue (flagcode p_flag, int p_val) /*@modifies gc.flags@*/ ;
174 static void context_setFlag (flagcode p_f, bool p_b)
175 /*@modifies gc.flags@*/ ;
178 context_setFlagAux (flagcode p_f, bool p_b, bool p_inFile, bool p_isRestore)
179 /*@modifies gc.flags@*/ ;
181 static void context_restoreFlag (flagcode p_f) /*@modifies gc.flags@*/ ;
185 cstring context_unparseFlagMarkers ()
187 return (flagMarkerList_unparse (gc.markers));
190 void context_setPreprocessing (void)
192 llassert (!gc.preprocessing);
193 gc.preprocessing = TRUE;
196 void context_clearPreprocessing (void)
198 llassert (gc.preprocessing);
199 gc.preprocessing = FALSE;
202 bool context_isPreprocessing (void)
204 return gc.preprocessing;
207 bool context_loadingLibrary (void)
209 return (fileloc_isLib (g_currentloc));
212 bool context_inXHFile (void)
214 return (fileloc_isXHFile (g_currentloc));
217 void context_setInCommandLine (void)
219 llassert (!gc.incommandline);
220 gc.incommandline = TRUE;
223 void context_clearInCommandLine (void)
225 llassert (gc.incommandline);
226 gc.incommandline = FALSE;
229 bool context_isInCommandLine (void)
231 return gc.incommandline;
235 void pushClause (clause c) /*@modifies gc.clauses, gc.inclause@*/
238 clauseStack_push (gc.clauses, c);
240 if (clause_isConditional (c)
241 && context_getFlag (FLG_CONTROLNESTDEPTH))
243 int maxdepth = context_getValue (FLG_CONTROLNESTDEPTH);
244 int depth = clauseStack_controlDepth (gc.clauses);
246 if (depth == maxdepth + 1)
249 (FLG_CONTROLNESTDEPTH,
250 message ("Maximum control nesting depth "
259 clause topClause (clauseStack s) /*@*/
261 if (clauseStack_isEmpty (s)) return NOCLAUSE;
262 return ((clause) clauseStack_top (s));
266 context_addMacroCache (/*@only@*/ cstring def)
268 DPRINTF (("macro cache: %s", def));
269 macrocache_addEntry (gc.mc, fileloc_copy (g_currentloc), def);
273 context_addComment (/*@only@*/ cstring def)
275 DPRINTF (("macro comment: %s", def));
276 macrocache_addComment (gc.mc, fileloc_copy (g_currentloc), def);
280 ** returns TRUE is fl is in ignore region, or region where -code
282 ** the logic is fuzzy...
286 context_inSuppressFlagZone (fileloc fl, flagcode code)
288 ynm ret = flagMarkerList_suppressError (gc.markers, code, fl);
291 if (ynm_isMaybe (ret))
299 res = !gc.saveflags[code];
303 res = !context_getFlag (code);
308 res = ynm_toBoolStrict (ret);
315 context_suppressSystemMsg (fileloc fl)
317 if (context_getFlag (FLG_SYSTEMDIRERRORS))
323 return (fileloc_isSystemFile (fl));
328 context_suppressFlagMsg (flagcode flag, fileloc fl)
330 if (context_suppressSystemMsg (fl))
335 DPRINTF (("Checking suppress: %s / %s", fileloc_unparse (fl), fileloc_unparse (g_currentloc)));
337 /* want same object compare here */
339 if (fileloc_equal (fl, g_currentloc) || gc.inDerivedFile)
341 DPRINTF (("In derived file: %s", bool_unparse (gc.inDerivedFile)));
343 return (!context_getFlag (flag)
344 || context_inSuppressRegion ()
345 || context_inSuppressZone (fl)
346 || (/*@!@@#@ gc.inDerivedFile && */ context_inSuppressFlagZone (fl, flag)));
350 return (context_inSuppressFlagZone (fl, flag));
355 context_suppressNotFlagMsg (flagcode flag, fileloc fl)
358 if (context_suppressSystemMsg (fl))
364 if (fl == g_currentloc)
365 /*@noaccess fileloc@*/
367 return (context_getFlag (flag) || context_inSuppressRegion ());
372 return (context_getFlag (flag) || context_inSuppressRegion ());
377 context_inSuppressZone (fileloc fl)
379 if (context_suppressSystemMsg (fl))
384 return (flagMarkerList_inIgnore (gc.markers, fl));
388 context_inSuppressRegion (void)
390 return (gc.insuppressregion);
394 context_enterSuppressRegion (void)
396 if (gc.insuppressregion)
398 gc.insuppressregion = FALSE; /* get this msg! */
400 ("%q: New ignore errors region entered while in ignore errors region",
401 fileloc_unparse (g_currentloc)));
404 gc.insuppressregion = TRUE;
405 flagMarkerList_add (gc.markers, flagMarker_createIgnoreOn (g_currentloc));
409 context_addFlagMarker (flagcode code, ynm set)
411 flagMarkerList_add (gc.markers,
412 flagMarker_createLocalSet (code, set, g_currentloc));
416 context_enterSuppressLine (int count)
418 fileloc nextline = fileloc_copy (g_currentloc);
420 flagMarkerList_add (gc.markers,
421 flagMarker_createIgnoreCount (count, g_currentloc));
423 fileloc_nextLine (nextline);
424 flagMarkerList_add (gc.markers,
425 flagMarker_createIgnoreOff (nextline));
426 fileloc_free (nextline);
429 void context_checkSuppressCounts (void)
431 if (context_getFlag (FLG_SUPCOUNTS))
433 flagMarkerList_checkSuppressCounts (gc.markers);
437 void context_incLineno (void)
444 context_exitSuppressRegion (void)
446 if (!gc.insuppressregion)
448 llerrorlit (FLG_SYNTAX,
449 "End ignore errors in region while not ignoring errors");
452 gc.insuppressregion = FALSE;
453 flagMarkerList_add (gc.markers, flagMarker_createIgnoreOff (g_currentloc));
457 context_enterMTfile (void)
463 context_exitMTfile (void)
465 llassert (gc.kind == CX_MT);
471 context_enterLCLfile (void)
474 gc.facct = typeIdSet_emptySet ();
479 addModuleAccess (/*@only@*/ cstring fname, typeIdSet mods)
483 for (i = 0; i < gc.nmods; i++)
485 if (cstring_equal (gc.moduleaccess[i].file, fname))
487 gc.moduleaccess[i].daccess = typeIdSet_union (gc.moduleaccess[i].daccess, mods);
488 cstring_free (fname);
493 if (gc.nmods == gc.maxmods)
497 gc.maxmods = gc.maxmods + DEFAULTMAXMODS;
498 oldmods = gc.moduleaccess;
500 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
502 for (i = 0; i < gc.nmods; i++)
504 gc.moduleaccess[i] = oldmods[i];
510 gc.moduleaccess[gc.nmods].file = fname;
511 gc.moduleaccess[gc.nmods].daccess = mods;
517 insertModuleAccess (cstring fname, typeId t)
521 for (i = 0; i < gc.nmods; i++)
523 if (cstring_equal (gc.moduleaccess[i].file, fname))
525 gc.moduleaccess[i].daccess = typeIdSet_insert (gc.moduleaccess[i].daccess, t);
530 addModuleAccess (cstring_copy (fname), typeIdSet_single (t));
535 context_exitLCLfile (void)
537 if (gc.kind != CX_LCLLIB)
540 fileLib_withoutExtension (fileName (currentFile ()), LCL_EXTENSION);
542 addModuleAccess (fileLib_removePath (lclname), gc.facct);
543 cstring_free (lclname);
548 gc.facct = typeIdSet_emptySet ();
553 context_dumpModuleAccess (FILE *fout)
557 for (i = 0; i < gc.nmods; i++)
559 cstring td = typeIdSet_dump (gc.moduleaccess[i].daccess);
561 fprintf (fout, "%s#%s@\n",
562 cstring_toCharsSafe (gc.moduleaccess[i].file),
563 cstring_toCharsSafe (td));
569 bool context_usingPosixLibrary ()
571 return (gc.library == FLG_POSIXLIB
572 || gc.library == FLG_POSIXSTRICTLIB
573 || gc.library == FLG_UNIXLIB
574 || gc.library == FLG_UNIXSTRICTLIB);
577 bool context_usingAnsiLibrary ()
579 return (gc.library != FLG_NOLIB);
582 flagcode context_getLibrary ()
587 void context_setLibrary (flagcode code)
592 /*@observer@*/ cstring context_selectedLibrary ()
597 return cstring_makeLiteralTemp (LLSTRICTLIBS_NAME);
599 return cstring_makeLiteralTemp (LLPOSIXLIBS_NAME);
600 case FLG_POSIXSTRICTLIB:
601 return cstring_makeLiteralTemp (LLPOSIXSTRICTLIBS_NAME);
603 return cstring_makeLiteralTemp (LLUNIXLIBS_NAME);
604 case FLG_UNIXSTRICTLIB:
605 return cstring_makeLiteralTemp (LLUNIXSTRICTLIBS_NAME);
607 return cstring_makeLiteralTemp (LLSTDLIBS_NAME);
614 context_loadModuleAccess (FILE *in)
616 char *s = mstring_create (MAX_DUMP_LINE_LENGTH);
618 char *name = mstring_create (MAX_NAME_LENGTH);
624 while ((reader_readLine (in, s, MAX_DUMP_LINE_LENGTH) != NULL )
630 while (s != NULL && *s != ';' && *s != '\0')
634 while (*s != '#' && *s != '\0')
643 llcontbug (message ("context_loadModuleAccess: bad library line: %s\n",
644 cstring_fromChars (s)));
650 addModuleAccess (cstring_copy (cstring_fromChars (oname)),
651 typeIdSet_undump (&s));
653 (void) reader_readLine (in, s, MAX_DUMP_LINE_LENGTH);
654 llassert (s != lasts);
664 typeIdSet context_fileAccessTypes (void)
670 context_resetModeFlags (void)
675 if (flagcode_isModeFlag (code))
677 context_setFlag (code, FALSE);
686 ** Set all flags to FALSE, except for a few which are
689 ** Set all values and strings to appropriate defaults.
690 ** Set all counters to 0.
694 conext_resetAllCounters (void)
698 for (i = 0; i < NUMVALUEFLAGS; i++)
705 context_resetAllFlags (void)
709 gc.flags[code] = FALSE;
711 if (flagcode_hasValue (code))
715 /*@-loopswitchbreak@*/
719 val = DEFAULT_LIMIT; break;
721 val = DEFAULT_BUGSLIMIT; break;
723 val = DEFAULT_LINELEN; break;
724 case FLG_INDENTSPACES:
725 val = DEFAULT_INDENTSPACES; break;
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;
746 llbug (message ("Bad value flag: %s", flagcode_unparse (code)));
748 /*@=loopswitchbreak@*/
750 context_setValue (code, val);
752 else if (flagcode_hasString (code))
754 cstring val = cstring_undefined;
757 { /*@-loopswitchbreak@*/
760 cstring larchpath = osd_getEnvironmentVariable (LARCH_PATH);
762 if (cstring_isDefined (larchpath))
764 val = cstring_copy (larchpath);
768 val = cstring_makeLiteral (DEFAULT_LARCHPATH);
773 case FLG_LCLIMPORTDIR:
775 val = cstring_copy (osd_getEnvironment (cstring_makeLiteralTemp (LCLIMPORTDIR), cstring_makeLiteralTemp (DEFAULT_LCLIMPORTDIR)));
779 # if defined(OS2) || defined(MSDOS) || defined(WIN32)
781 char *env = osd_getEnvironmentVariable ("TMP");
785 env = osd_getEnvironmentVariable ("TEMP");
788 val = cstring_makeLiteral (env != NULL ? env : DEFAULT_TMPDIR);
791 val = cstring_makeLiteral (DEFAULT_TMPDIR);
792 # endif /* !defined(OS2) && !defined(MSDOS) */
796 val = cstring_makeLiteral (DEFAULT_BOOLTYPE); break;
798 val = cstring_makeLiteral ("FALSE"); break;
800 val = cstring_makeLiteral ("TRUE"); break;
801 case FLG_MACROVARPREFIX:
802 val = cstring_makeLiteral ("m_"); break;
804 val = cstring_makeLiteral (DEFAULT_SYSTEMDIR); break;
807 } /*@=loopswitchbreak@*/
809 context_setString (code, val);
813 ; /* nothing to set */
818 ** These flags are true by default.
821 /*@i34 move this into flags.def */
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;
835 gc.flags[FLG_UNRECOGFLAGCOMMENTS] = TRUE;
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;
844 gc.flags[FLG_SIZEOFFORMALARRAY] = TRUE;
845 gc.flags[FLG_FIXEDFORMALARRAY] = TRUE;
847 gc.flags[FLG_WARNUSE] = TRUE;
848 gc.flags[FLG_PREDASSIGN] = TRUE;
849 gc.flags[FLG_MODOBSERVER] = TRUE;
850 gc.flags[FLG_MACROVARPREFIXEXCLUDE] = TRUE;
851 gc.flags[FLG_EXTERNALNAMECASEINSENSITIVE] = TRUE;
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;
863 gc.flags[FLG_FILEEXTENSIONS] = TRUE;
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;
884 gc.flags[FLG_ANNOTATIONERROR] = TRUE;
885 gc.flags[FLG_COMMENTERROR] = TRUE;
888 ** Changed for version 2.4.
891 gc.flags[FLG_GNUEXTENSIONS] = TRUE;
894 ** On by default for Win32, but not Unix (to support MS/VC++ error message format).
898 gc.flags[FLG_PARENFILEFORMAT] = TRUE;
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.
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++; }}
916 context_setMode (cstring s)
918 intSet setflags = intSet_new ();
922 if (flagcode_isModeFlag (code))
924 if (gc.setGlobally[code])
926 (void) intSet_insert (setflags, (int) code);
931 if (!intSet_isEmpty (setflags))
933 cstring rflags = cstring_undefined;
936 intSet_elements (setflags, el)
938 if (cstring_isUndefined (rflags))
940 rflags = cstring_copy (flagcode_unparse ((flagcode) (el)));
944 rflags = message ("%q, %s", rflags,
945 flagcode_unparse ((flagcode) el));
949 if (num > 4 && intSet_size (setflags) > 6)
951 rflags = message ("%q, (%d others) ...", rflags,
952 intSet_size (setflags) - num);
955 } end_intSet_elements ;
957 voptgenerror (FLG_WARNFLAGS,
958 message ("Setting mode %s after setting mode flags will "
959 "override set values of flags: %s",
963 cstring_free (rflags);
966 intSet_free (setflags);
968 context_resetModeFlags ();
970 if (cstring_equalLit (s, "standard"))
972 flagcode modeflags[] =
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,
982 FLG_PARAMUNUSED, FLG_VARUNUSED, FLG_FUNCUNUSED,
984 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED, FLG_FIELDUNUSED,
985 FLG_PTRNUMCOMPARE, FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
986 FLG_MUTREP, FLG_NOEFFECT, FLG_IMPTYPE,
987 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
988 FLG_SPECUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB, FLG_MISPLACEDSHAREQUAL,
991 FLG_MACROPARAMS, FLG_MACROASSIGN, FLG_SEFPARAMS,
992 FLG_MACROSTMT, FLG_MACROPARENS,
995 FLG_MACROREDEF, FLG_INFLOOPS, FLG_UNREACHABLE,
996 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1001 /* memchecks flags */
1003 FLG_NULLSTATE, FLG_NULLASSIGN,
1004 FLG_NULLPASS, FLG_NULLRET,
1006 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1009 /* memtrans flags */
1028 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1029 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1030 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1033 FLG_STATETRANSFER, FLG_STATEMERGE,
1034 FLG_EVALORDER, FLG_SHADOW, FLG_READONLYSTRINGS,
1036 FLG_IMPCHECKEDSPECGLOBALS,
1037 FLG_MODGLOBS, FLG_WARNLINTCOMMENTS,
1038 FLG_IFEMPTY, FLG_REALCOMPARE,
1039 FLG_BOOLOPS, FLG_PTRNEGATE,
1041 FLG_BUFFEROVERFLOWHIGH,
1048 else if (cstring_equalLit (s, "weak"))
1050 flagcode modeflags[] =
1052 FLG_BOOLINT, FLG_CHARINT, FLG_FLOATDOUBLE,
1053 FLG_ENUMINT, FLG_RELAXQUALS, FLG_FORWARDDECL,
1054 FLG_CHARINDEX, FLG_ABSTVOIDP, FLG_USEALLGLOBS,
1055 FLG_CHARUNSIGNEDCHAR,
1057 FLG_VARUNUSED, FLG_FUNCUNUSED,
1059 FLG_CHECKSTRICTGLOBALS, FLG_MACROMATCHNAME,
1062 FLG_BUFFEROVERFLOWHIGH,
1063 FLG_RETSTACK, FLG_PTRNEGATE,
1064 FLG_STATETRANSFER, FLG_STATEMERGE,
1065 FLG_LONGUNSIGNEDINTEGRAL,
1066 FLG_LONGUNSIGNEDUNSIGNEDINTEGRAL,
1070 FLG_BUFFEROVERFLOWHIGH,
1076 else if (cstring_equalLit (s, "checks"))
1078 flagcode modeflags[] =
1080 FLG_EXPORTLOCAL, FLG_IMPTYPE,
1081 FLG_STATETRANSFER, FLG_STATEMERGE,
1082 FLG_CHECKSTRICTGLOBALIAS,
1083 FLG_CHECKEDGLOBALIAS,
1084 FLG_CHECKMODGLOBALIAS,
1085 FLG_UNCHECKEDGLOBALIAS,
1087 FLG_EXITARG, FLG_PTRNUMCOMPARE,
1088 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1089 FLG_MACROUNDEF, FLG_MUSTMOD, FLG_ALLGLOBALS,
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,
1100 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
1107 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1111 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1113 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE,
1114 FLG_EVALORDER, FLG_USEDEF,
1118 /* warn use flags */
1119 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1120 FLG_BUFFEROVERFLOWHIGH,
1122 /* memchecks flags */
1124 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1125 FLG_NULLPASS, FLG_NULLRET,
1127 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF, FLG_RETSTACK,
1129 /* memtrans flags */
1143 FLG_STATICINITTRANS,
1144 FLG_UNKNOWNINITTRANS,
1147 FLG_ONLYUNQGLOBALTRANS,
1148 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1149 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1150 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
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,
1162 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1167 else if (cstring_equalLit (s, "strict"))
1169 flagcode modeflags[] =
1171 FLG_CHECKSTRICTGLOBALIAS,
1172 FLG_CHECKEDGLOBALIAS,
1173 FLG_CHECKMODGLOBALIAS,
1174 FLG_UNCHECKEDGLOBALIAS,
1178 FLG_STATETRANSFER, FLG_STATEMERGE,
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,
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,
1196 FLG_EXPORTITER, FLG_EXPORTCONST,
1197 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_TOPUNUSED,
1198 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1200 FLG_NULLPOINTERARITH, FLG_POINTERARITH,
1202 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1203 FLG_NOEFFECT, FLG_RETVALINT, FLG_RETVALBOOL, FLG_RETVALOTHER,
1204 FLG_ANSIRESERVED, FLG_ANSIRESERVEDLOCAL, FLG_CPPNAMES,
1205 FLG_RETVALBOOL, FLG_RETVALINT, FLG_SPECUNDEF,
1206 FLG_DECLUNDEF, FLG_STRICTOPS, FLG_INCONDEFS,
1207 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
1208 FLG_INCONDEFSLIB, FLG_MATCHFIELDS, FLG_EXPORTMACRO, FLG_EXPORTVAR,
1209 FLG_EXPORTFCN, FLG_EXPORTTYPE, FLG_EXPORTLOCAL, FLG_MACROPARAMS,
1211 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1214 FLG_MACROREDEF, FLG_MACROEMPTY,
1215 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1217 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1219 FLG_MODUNCON, FLG_MODUNCONNOMODS, FLG_MODINTERNALSTRICT,
1220 FLG_MODOBSERVERUNCON,
1225 /* warn use flags */
1226 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1227 FLG_BUFFEROVERFLOWHIGH,
1228 FLG_BUFFEROVERFLOW, FLG_TOCTOU,
1230 /* memchecks flags */
1231 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1232 FLG_NULLPASS, FLG_NULLRET,
1234 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1236 /* memtrans flags */
1252 FLG_STATICINITTRANS,
1253 FLG_UNKNOWNINITTRANS,
1255 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1256 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1257 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1261 FLG_DECLPARAMNAME, FLG_DECLPARAMMATCH,
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,
1282 FLG_REALCOMPARE, FLG_BOOLOPS,
1283 FLG_SYSTEMDIRERRORS, FLG_UNUSEDSPECIAL,
1285 FLG_SHIFTSIGNED, FLG_BITWISEOPS,
1286 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1294 llcontbug (message ("context_setMode: bad mode: %s", s));
1299 context_isSpecialFile (cstring fname)
1301 cstring ext = fileLib_getExtension (fname);
1303 return (cstring_equalLit (ext, ".y")
1304 || cstring_equalLit (ext, ".l")
1305 || cstring_equalLit (fname, "lex.yy.c"));
1309 context_isSystemDir (cstring dir)
1311 cstring sysDirs = context_exposeString (FLG_SYSTEMDIRS);
1312 char *thisdir = cstring_toCharsSafe (sysDirs);
1313 char *nextdir = strchr (thisdir, PATH_SEPARATOR);
1315 if (nextdir != NULL)
1321 while (thisdir != NULL)
1323 DPRINTF (("Test: %s / %s", dir, thisdir));
1325 if (cstring_equalCanonicalPrefix (dir, thisdir))
1327 if (nextdir != NULL)
1329 *(nextdir - 1) = PATH_SEPARATOR;
1335 if (nextdir != NULL)
1337 *(nextdir - 1) = PATH_SEPARATOR;
1340 if (nextdir != NULL)
1343 nextdir = strchr (thisdir, PATH_SEPARATOR);
1345 if (nextdir != NULL)
1357 DPRINTF (("Returns FALSE"));
1362 context_addFileAccessType (typeId t)
1366 if (context_inFunctionLike ())
1368 gc.acct = typeIdSet_insert (gc.acct, t);
1371 gc.facct = typeIdSet_insert (gc.facct, t);
1373 base = fileloc_getBase (g_currentloc);
1374 insertModuleAccess (base, t);
1375 DPRINTF (("Add file access: %s / %s", typeIdSet_unparse (gc.facct),
1376 typeIdSet_unparse (gc.acct)));
1380 context_removeFileAccessType (typeId t)
1382 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
1383 || gc.kind == CX_UNKNOWNMACRO)
1385 gc.acct = typeIdSet_removeFresh (gc.acct, t);
1388 gc.facct = typeIdSet_removeFresh (gc.facct, t);
1389 gc.nacct = typeIdSet_insert (gc.nacct, t);
1392 void context_enterFunctionHeader (void)
1394 if (context_getFlag (FLG_GRAMMAR))
1396 lldiagmsg (message ("Enter function header: %q", context_unparse ()));
1399 if (gc.kind != CX_GLOBAL)
1401 llparseerror (cstring_makeLiteral
1402 ("Likely parse error. Function header outside global context."));
1406 llassert (gc.kind == CX_GLOBAL);
1407 DPRINTF (("Enter function header!"));
1408 gc.inFunctionHeader = TRUE;
1412 void context_exitFunctionHeader (void)
1414 if (context_getFlag (FLG_GRAMMAR))
1416 lldiagmsg (message ("Exit function header: %q", context_unparse ()));
1419 DPRINTF (("Exit function header!"));
1420 gc.inFunctionHeader = FALSE;
1423 bool context_inFunctionHeader (void)
1425 return (gc.inFunctionHeader);
1428 void context_enterFunctionDeclaration (uentry e)
1430 if (context_getFlag (FLG_GRAMMAR))
1432 lldiagmsg (message ("Enter function declaration: %q", context_unparse ()));
1435 DPRINTF (("Enter function decl"));
1436 llassert (gc.savekind == CX_ERROR);
1437 gc.savekind = gc.kind;
1438 gc.savecont = gc.cont;
1439 gc.kind = CX_FCNDECLARATION;
1443 void context_exitFunctionDeclaration (void)
1445 if (context_getFlag (FLG_GRAMMAR))
1447 lldiagmsg (message ("Exit function declaration: %q", context_unparse ()));
1450 DPRINTF (("Exit function decl"));
1451 llassert (gc.savekind != CX_ERROR);
1452 llassert (gc.kind == CX_FCNDECLARATION);
1453 gc.kind = gc.savekind;
1454 gc.cont = gc.savecont;
1456 gc.savekind = CX_ERROR;
1458 if (context_getFlag (FLG_GRAMMAR))
1460 lldiagmsg (message ("After exit function declaration: %q", context_unparse ()));
1464 bool context_inFunctionDeclaration (void)
1466 return (gc.kind == CX_FCNDECLARATION);
1471 context_enterMacro (/*@observer@*/ uentry e)
1473 context_enterFunction (e);
1474 gc.kind = CX_MACROFCN;
1478 context_enterUnknownMacro (/*@dependent@*/ uentry e)
1480 llassert (uentry_isFunction (e));
1481 context_enterFunction (e);
1482 gc.kind = CX_UNKNOWNMACRO;
1485 void context_enterAndClause (exprNode e)
1488 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1489 pushClause (ANDCLAUSE);
1492 void context_enterOrClause (exprNode e)
1494 usymtab_trueBranch (guardSet_invert (exprNode_getGuards (e)));
1495 pushClause (ORCLAUSE);
1498 bool context_inDeepLoop (void)
1500 bool inLoop = FALSE;
1502 clauseStack_elements (gc.clauses, el)
1504 if (clause_isLoop (el))
1513 } end_clauseStack_elements;
1518 bool context_inDeepSwitch (void)
1520 bool inLoop = FALSE;
1522 clauseStack_elements (gc.clauses, el)
1524 if (clause_isSwitch (el))
1533 } end_clauseStack_elements;
1538 bool context_inDeepLoopSwitch (void)
1540 bool inLoop = FALSE;
1542 clauseStack_elements (gc.clauses, el)
1544 if (clause_isBreakable (el))
1553 } end_clauseStack_elements;
1558 clause context_breakClause (void)
1560 clauseStack_elements (gc.clauses, el)
1562 if (clause_isSwitch (el))
1566 else if (clause_isLoop (el))
1574 } end_clauseStack_elements;
1579 clause context_nextBreakClause (void)
1581 bool hasOne = FALSE;
1583 clauseStack_elements (gc.clauses, el)
1585 if (clause_isBreakable (el))
1596 } end_clauseStack_elements;
1601 bool context_inConditional (void)
1603 clauseStack_elements (gc.clauses, el)
1606 ** Should also include TRUECLAUSE and FALSECLAUSE, but need
1607 ** to distinguish if from ? for this
1610 if (clause_isBreakable (el) && (el != DOWHILECLAUSE))
1614 } end_clauseStack_elements;
1619 void context_exitAndClause (exprNode pred, exprNode tbranch)
1621 context_setJustPopped ();
1623 llassert (gc.inclause == ANDCLAUSE);
1625 usymtab_popAndBranch (pred, tbranch);
1626 clauseStack_pop (gc.clauses);
1627 gc.inclause = topClause (gc.clauses);
1630 void context_exitOrClause (exprNode pred, exprNode tbranch)
1632 context_setJustPopped ();
1634 llassert (gc.inclause == ORCLAUSE);
1636 usymtab_popOrBranch (pred, tbranch);
1637 clauseStack_pop (gc.clauses);
1638 gc.inclause = topClause (gc.clauses);
1641 static void context_enterCondClauseAux (clause cl)
1647 static void context_enterTrueAux (exprNode e, clause cl)
1650 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1654 void context_enterIterClause (void)
1656 context_enterTrueAux (exprNode_undefined, ITERCLAUSE);
1659 void context_enterDoWhileClause (void)
1661 pushClause (DOWHILECLAUSE);
1664 void context_enterWhileClause (exprNode e)
1666 context_enterTrueAux (e, WHILECLAUSE);
1669 void context_enterForClause (exprNode e)
1671 context_enterTrueAux (e, FORCLAUSE);
1674 void context_enterTrueClause (exprNode e)
1676 context_enterTrueAux (e, TRUECLAUSE);
1679 void context_enterSwitch (exprNode e)
1682 usymtab_switchBranch (e);
1683 context_enterCondClauseAux (SWITCHCLAUSE);
1686 void context_exitSwitch (exprNode e, bool allpaths)
1688 usymtab_exitSwitch (e, allpaths);
1690 while (clause_isCase (clauseStack_top (gc.clauses)))
1692 clauseStack_pop (gc.clauses);
1695 context_exitClauseSimp ();
1698 void context_enterCaseClause (exprNode e)
1700 bool branch = FALSE;
1702 DPRINTF (("Enter case clause!"));
1704 branch = usymtab_newCase (exprNode_undefined, e);
1708 context_enterCondClauseAux (CASECLAUSE);
1712 static void context_enterFalseClauseAux (exprNode e, clause cl)
1715 usymtab_altBranch (guardSet_invert (exprNode_getGuards (e)));
1717 clauseStack_switchTop (gc.clauses, cl);
1720 void context_enterFalseClause (exprNode e)
1723 context_enterFalseClauseAux (e, FALSECLAUSE);
1727 context_enterConstantMacro (/*@exposed@*/ /*@dependent@*/ uentry e)
1729 gc.kind = CX_MACROCONST;
1731 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1733 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1737 usymtab_enterScope ();
1738 sRef_enterFunctionScope ();
1740 gc.globs = globSet_undefined;
1741 globSet_clear (gc.globs_used);
1742 gc.mods = sRefSet_undefined;
1745 uentry context_getHeader (void)
1747 if (!(context_inFunctionLike () || (gc.kind == CX_MACROCONST)))
1749 llfatalbug (message ("context_getHeader: bad call: %q",
1750 context_unparse ()));
1753 return (gc.cont.fcn);
1757 context_setFunctionDefined (fileloc loc)
1761 case CX_UNKNOWNMACRO:
1764 uentry_setFunctionDefined (gc.cont.fcn, loc);
1767 /* (not a bug because of parse errors) */
1773 context_enterFunction (/*@exposed@*/ uentry e)
1775 gc.kind = CX_FUNCTION;
1778 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1780 if (uentry_hasAccessType (e))
1782 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1790 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1791 typeIdSet_unparse (gc.acct)));
1793 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1795 gc.globs = uentry_getGlobs (e);
1796 globSet_clear (gc.globs_used);
1797 gc.mods = uentry_getMods (e);
1799 usymtab_enterFunctionScope (e);
1800 sRef_enterFunctionScope ();
1804 context_enterOldStyleScope (void)
1806 gc.kind = CX_OLDSTYLESCOPE;
1807 DPRINTF (("Enter old style scope!"));
1808 usymtab_enterFunctionScope (uentry_undefined);
1812 context_completeOldStyleFunction (uentry e)
1814 llassert (gc.kind == CX_OLDSTYLESCOPE);
1816 gc.kind = CX_FUNCTION;
1819 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1821 if (uentry_hasAccessType (e))
1823 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1831 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1832 typeIdSet_unparse (gc.acct)));
1834 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1836 if (!globSet_isEmpty (uentry_getGlobs (e)))
1838 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1839 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1842 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1844 gc.globs = uentry_getGlobs (e);
1845 globSet_clear (gc.globs_used);
1847 gc.mods = uentry_getMods (e);
1849 if (!sRefSet_isEmpty (gc.mods))
1851 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1852 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1855 sRef_enterFunctionScope ();
1858 static bool context_checkStrictGlobals (void)
1860 return (context_getFlag (FLG_CHECKSTRICTGLOBALS));
1863 static bool context_hasGlobs (void)
1865 if (context_inFunctionLike ())
1867 return (uentry_hasGlobs (gc.cont.fcn));
1875 static bool context_checkCheckedGlobals (void)
1877 return (context_getFlag (FLG_GLOBALS)
1878 && (context_getFlag (FLG_GLOBUNSPEC)
1879 || context_hasGlobs ()));
1882 static bool context_checkUnknownGlobals (void)
1884 /* should be uentry_hasGlobs ? */
1886 return (context_getFlag (FLG_ALLGLOBALS)
1887 && (context_getFlag (FLG_GLOBUNSPEC)
1888 || context_hasGlobs ()));
1891 static bool context_checkUncheckedGlobals (void)
1897 context_checkExport (uentry e)
1899 if (!gc.anyExports) return FALSE;
1901 if (uentry_isFunction (e)
1902 || (uentry_isVariable (e) && ctype_isFunction (uentry_getType (e))))
1904 return context_maybeSet (FLG_EXPORTFCN);
1906 else if (uentry_isExpandedMacro (e))
1908 return context_maybeSet (FLG_EXPORTMACRO);
1910 else if (uentry_isVariable (e))
1912 return context_maybeSet (FLG_EXPORTVAR);
1914 else if (uentry_isEitherConstant (e))
1916 return context_maybeSet (FLG_EXPORTCONST);
1918 else if (uentry_isIter (e) || uentry_isEndIter (e))
1920 return context_maybeSet (FLG_EXPORTITER);
1922 else if (uentry_isDatatype (e))
1924 return context_maybeSet (FLG_EXPORTTYPE);
1933 context_checkGlobUse (uentry glob)
1936 if (uentry_isCheckedStrict (glob))
1938 return context_checkStrictGlobals ();
1940 else if (uentry_isChecked (glob))
1942 return context_checkCheckedGlobals ();
1944 else if (uentry_isCheckedUnknown (glob) || uentry_isCheckMod (glob))
1946 return context_checkUnknownGlobals ();
1950 llassert (uentry_isUnchecked (glob));
1952 return context_checkUncheckedGlobals ();
1957 context_checkAliasGlob (uentry glob)
1959 if (uentry_isCheckedStrict (glob))
1961 return gc.flags[FLG_CHECKSTRICTGLOBALIAS];
1963 else if (uentry_isChecked (glob))
1965 return gc.flags[FLG_CHECKEDGLOBALIAS];
1967 else if (uentry_isCheckMod (glob))
1969 return gc.flags[FLG_CHECKMODGLOBALIAS];
1973 llassert (uentry_isUnchecked (glob) || uentry_isCheckedUnknown (glob));
1975 return gc.flags[FLG_UNCHECKEDGLOBALIAS];
1979 bool context_checkInternalUse (void)
1981 if (context_hasGlobs ())
1983 return (gc.flags[FLG_INTERNALGLOBS]);
1987 return (gc.flags[FLG_INTERNALGLOBSNOGLOBS]);
1992 context_checkGlobMod (sRef el)
1994 uentry ue = sRef_getUentry (el);
1996 /* no: llassert (sRef_isFileOrGlobalScope (el)); also check local statics */
1998 if (uentry_isCheckedModify (ue)
1999 || (!uentry_isUnchecked (ue) && (gc.flags[FLG_ALLGLOBALS])))
2001 if (context_hasMods ())
2003 return (gc.flags[FLG_MODGLOBS]);
2007 if (uentry_isCheckedStrict (ue))
2009 return (gc.flags[FLG_MODGLOBSUNSPEC]);
2013 return (gc.flags[FLG_MODSTRICTGLOBSUNSPEC]);
2019 if (context_hasMods ())
2021 return (gc.flags[FLG_MODGLOBSUNCHECKED]);
2031 context_usedGlobal (/*@exposed@*/ sRef el)
2033 if (!globSet_member (gc.globs_used, el))
2036 ** The first time a global is used in a function, we need
2037 ** to clear the derived sRefs, since they were set for the
2038 ** previous function.
2041 sRef_clearDerived (el);
2042 gc.globs_used = globSet_insert (gc.globs_used, el);
2046 /*@observer@*/ sRefSet
2047 context_modList (void)
2053 context_globAccess (sRef s)
2055 llassert (sRef_isFileOrGlobalScope (s) || sRef_isKindSpecial (s));
2056 return (globSet_member (gc.globs, s));
2060 context_hasAccess (typeId t)
2062 if (context_inFunctionLike ())
2064 DPRINTF (("Access %d / %s",
2065 t, typeIdSet_unparse (gc.acct)));
2066 return (typeIdSet_member (gc.acct, t));
2070 return (context_hasFileAccess (t));
2075 context_hasFileAccess (typeId t)
2077 return (typeIdSet_member (gc.facct, t));
2081 context_unparseAccess (void)
2083 return (message ("%q / %q", typeIdSet_unparse (gc.acct),
2084 typeIdSet_unparse (gc.facct)));
2088 context_unparseClauses (void)
2090 return (clauseStack_unparse (gc.clauses));
2094 context_couldHaveAccess (typeId t)
2096 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO)
2098 return (typeIdSet_member (gc.acct, t));
2102 return (typeIdSet_member (gc.facct, t));
2107 context_getRetType (void)
2109 ctype f = ctype_undefined;
2111 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
2113 f = uentry_getType (gc.cont.fcn);
2115 else if (gc.kind == CX_UNKNOWNMACRO)
2117 return ctype_unknown;
2121 llcontbuglit ("context_getRetType: not in a function context");
2122 return ctype_unknown;
2125 if (!ctype_isFunction (f))
2127 if (ctype_isKnown (f))
2129 llbuglit ("context_getRetType: not a function");
2132 return ctype_unknown;
2134 return (ctype_getReturnType (f));
2138 context_hasMods (void)
2140 if (context_inFunctionLike ())
2142 return (uentry_hasMods (gc.cont.fcn));
2151 context_exitAllClauses (void)
2153 while (!clauseStack_isEmpty (gc.clauses))
2155 clause el = clauseStack_top (gc.clauses);
2158 if (clause_isNone (el))
2160 usymtab_quietExitScope (g_currentloc);
2161 clauseStack_pop (gc.clauses);
2165 context_exitClausePlain ();
2169 clauseStack_clear (gc.clauses);
2170 gc.inclause = NOCLAUSE;
2174 context_exitAllClausesQuiet (void)
2176 while (!clauseStack_isEmpty (gc.clauses))
2178 clause el = clauseStack_top (gc.clauses);
2181 usymtab_quietExitScope (g_currentloc);
2182 clauseStack_pop (gc.clauses);
2185 clauseStack_clear (gc.clauses);
2186 gc.inclause = NOCLAUSE;
2190 void context_exitClauseSimp (void)
2193 context_setJustPopped ();
2194 clauseStack_pop (gc.clauses);
2195 gc.inclause = topClause (gc.clauses);
2199 void context_exitCaseClause (void)
2201 context_setJustPopped ();
2202 usymtab_popCaseBranch ();
2203 clauseStack_pop (gc.clauses);
2204 gc.inclause = topClause (gc.clauses);
2208 void context_exitClauseAux (exprNode pred, exprNode tbranch)
2210 context_setJustPopped ();
2211 /*@i32 was makeAlt */
2212 usymtab_popTrueBranch (pred, tbranch, gc.inclause);
2213 clauseStack_pop (gc.clauses);
2214 gc.inclause = topClause (gc.clauses);
2217 void context_exitTrueClause (exprNode pred, exprNode tbranch)
2219 DPRINTF (("Exit true clause: %s", exprNode_unparse (tbranch)));
2221 if (gc.inclause != TRUECLAUSE)
2223 llparseerror (cstring_makeLiteral
2224 ("Likely parse error. Conditional clauses are inconsistent."));
2228 context_setJustPopped ();
2229 usymtab_popTrueBranch (pred, tbranch, TRUECLAUSE);
2230 clauseStack_pop (gc.clauses);
2231 gc.inclause = topClause (gc.clauses);
2234 void context_exitIterClause (exprNode body)
2236 llassert (gc.inclause == ITERCLAUSE);
2238 context_setJustPopped ();
2240 if (context_getFlag (FLG_LOOPEXEC))
2242 usymtab_popTrueExecBranch (exprNode_undefined, body, ITERCLAUSE);
2246 usymtab_popTrueBranch (exprNode_undefined, body, ITERCLAUSE);
2249 clauseStack_pop (gc.clauses);
2250 gc.inclause = topClause (gc.clauses);
2253 static void context_popCase (void) {
2255 ** If we are exiting an outer clause, sometimes still in a switch case.
2269 DPRINTF (("Popping case clause: %s",
2270 clauseStack_unparse (gc.clauses)));
2272 if (gc.inclause == CASECLAUSE) {
2273 context_exitCaseClause ();
2277 void context_exitWhileClause (exprNode pred, exprNode body)
2279 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2283 if (gc.inclause != WHILECLAUSE) {
2284 DPRINTF (("Clause: %s / %s", clause_unparse (gc.inclause),
2285 clauseStack_unparse (gc.clauses)));
2288 llassert (gc.inclause == WHILECLAUSE);
2290 context_setJustPopped ();
2294 ** predicate must be false after while loop (unless there are breaks)
2297 if (context_getFlag (FLG_LOOPEXEC))
2299 usymtab_popTrueExecBranch (pred, body, WHILECLAUSE);
2303 usymtab_popTrueBranch (pred, body, WHILECLAUSE);
2307 usymtab_addGuards (invGuards);
2308 guardSet_free (invGuards);
2310 clauseStack_pop (gc.clauses);
2311 gc.inclause = topClause (gc.clauses);
2314 void context_exitDoWhileClause (exprNode pred)
2316 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2318 if (gc.inclause == CASECLAUSE) {
2319 /* handle Duff's device */
2320 clauseStack_pop (gc.clauses);
2321 gc.inclause = topClause (gc.clauses);
2324 llassert (gc.inclause == DOWHILECLAUSE);
2326 context_setJustPopped ();
2329 usymtab_addGuards (invGuards);
2330 guardSet_free (invGuards);
2332 clauseStack_pop (gc.clauses);
2333 gc.inclause = topClause (gc.clauses);
2336 void context_exitForClause (exprNode forPred, exprNode body)
2338 guardSet invGuards = guardSet_invert (exprNode_getForGuards (forPred));
2340 llassert (gc.inclause == FORCLAUSE);
2341 context_setJustPopped ();
2344 ** predicate must be false after while loop (unless there are breaks)
2347 if (context_getFlag (FLG_LOOPEXEC))
2349 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
2353 usymtab_popTrueBranch (forPred, body, FORCLAUSE);
2356 usymtab_addGuards (invGuards);
2357 guardSet_free (invGuards);
2358 clauseStack_pop (gc.clauses);
2359 gc.inclause = topClause (gc.clauses);
2362 static void context_exitClausePlain (void)
2364 llassert (gc.inclause != NOCLAUSE);
2366 if (gc.inclause == FALSECLAUSE)
2368 context_exitClause (exprNode_undefined, exprNode_undefined, exprNode_undefined);
2372 context_exitClauseAux (exprNode_undefined, exprNode_undefined);
2376 void context_exitClause (exprNode pred, exprNode tbranch, exprNode fbranch)
2378 context_setJustPopped ();
2380 if (gc.inclause == FALSECLAUSE)
2382 usymtab_popBranches (pred, tbranch, fbranch, FALSE, FALSECLAUSE);
2384 llassert (clauseStack_top (gc.clauses) == FALSECLAUSE);
2386 clauseStack_pop (gc.clauses);
2387 gc.inclause = topClause (gc.clauses);
2391 context_exitTrueClause (pred, tbranch);
2396 context_returnFunction (void)
2398 usymtab_checkFinalScope (TRUE);
2402 context_exitFunction (void)
2404 DPRINTF (("Exit function: %s", context_unparse ()));
2406 if (!context_inFunction () && !context_inMacroConstant ()
2407 && !context_inUnknownMacro ()
2408 && !context_inIterDef () && !context_inIterEnd ())
2411 ** not a bug because of parse errors
2418 if (context_inMacro () && usymtab_inFunctionScope ())
2420 usymtab_exitScope (exprNode_undefined);
2423 if (uentry_hasGlobs (gc.cont.fcn))
2425 exprChecks_checkUsedGlobs (gc.globs, gc.globs_used);
2429 if (uentry_hasMods (gc.cont.fcn))
2431 if (context_getFlag (FLG_MUSTMOD))
2433 exprNode_checkAllMods (gc.mods, gc.cont.fcn);
2437 DPRINTF (("Exit function: %s", uentry_unparse (gc.cont.fcn)));
2440 ** clear file static modifies
2443 /* do this first to get unused error messages */
2445 usymtab_exitScope (exprNode_undefined);
2446 sRef_exitFunctionScope ();
2448 gc.showfunction = FALSE;
2449 gc.kind = CX_GLOBAL;
2450 gc.cont.glob = TRUE;
2452 gc.globs = globSet_new ();
2453 globSet_clear (gc.globs_used);
2454 gc.mods = sRefSet_new ();
2457 llassert (clauseStack_isEmpty (gc.clauses));
2458 llassert (gc.inclause == NOCLAUSE);
2459 DPRINTF (("After exit function: %s", context_unparse ()));
2463 context_quietExitFunction (void)
2465 while (gc.kind == CX_INNER)
2467 context_exitInnerPlain ();
2470 if (!context_inFunction () && !context_inMacroConstant () && !context_inUnknownMacro ()
2471 && !context_inIterDef () && !context_inIterEnd ())
2476 usymtab_quietExitScope (g_currentloc);
2478 gc.showfunction = FALSE;
2479 gc.kind = CX_GLOBAL;
2480 gc.cont.glob = TRUE;
2482 gc.globs = globSet_new ();
2483 globSet_clear (gc.globs_used);
2484 gc.mods = sRefSet_new ();
2486 sRef_exitFunctionScope ();
2490 /*@observer@*/ uentryList
2491 context_getParams (void)
2493 if (context_inFunctionLike ())
2495 return (uentry_getParams (gc.cont.fcn));
2499 llcontbug (message ("context_getParams: not in function: %q", context_unparse ()));
2500 return uentryList_undefined;
2504 /*@observer@*/ globSet
2505 context_getUsedGlobs (void)
2507 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2508 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2510 return (gc.globs_used);
2514 context_moduleName ()
2516 return (fileloc_getBase (g_currentloc));
2519 /*@observer@*/ globSet
2520 context_getGlobs (void)
2522 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2523 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2529 context_addBoolAccess (void)
2531 cstring bname = context_getString (FLG_BOOLTYPE);
2532 typeIdSet boolt = typeIdSet_single (usymtab_getTypeId (bname));
2534 addModuleAccess (cstring_copy (bname), boolt);
2536 /* for sys/types (perhaps, this is bogus!) */
2537 addModuleAccess (cstring_makeLiteral ("types"), boolt);
2542 context_canAccessBool (void)
2549 static typeId boolType = typeId_invalid;
2551 if (typeId_isInvalid (boolType))
2553 boolType = usymtab_getTypeId (context_getBoolName ());
2556 if (typeId_isInvalid (boolType)) {
2559 return (typeIdSet_member (gc.acct, boolType));
2564 /* evs 2000-07-25: old version - replaced */
2567 context_boolImplementationType () {
2568 /* For now, this is bogus! */
2573 context_canAccessBool (void)
2575 static typeId boolType = typeId_invalid;
2577 if (typeId_isInvalid (boolType))
2579 boolType = usymtab_getTypeId (context_getBoolName ());
2582 if (!typeId_isInvalid (boolType))
2584 return context_hasAccess (boolType);
2595 context_setMessageAnnote (/*@only@*/ cstring s)
2597 llassert (cstring_isUndefined (gc.msgAnnote));
2602 context_hasMessageAnnote (void)
2604 return (cstring_isDefined (gc.msgAnnote));
2608 context_clearMessageAnnote (void)
2610 if (cstring_isDefined (gc.msgAnnote))
2612 cstring_free (gc.msgAnnote);
2613 gc.msgAnnote = cstring_undefined;
2618 context_getMessageAnnote (void)
2620 cstring st = gc.msgAnnote;
2622 gc.msgAnnote = cstring_undefined;
2627 context_setAliasAnnote (/*@observer@*/ sRef s, /*@observer@*/ sRef t)
2629 llassert (sRef_isInvalid (gc.aliasAnnote));
2630 llassert (!sRef_sameName (s, t));
2632 gc.aliasAnnoteAls = t;
2636 context_hasAliasAnnote (void)
2638 return (sRef_isValid (gc.aliasAnnote));
2642 context_clearAliasAnnote (void)
2644 gc.aliasAnnote = sRef_undefined;
2648 context_getAliasAnnote (void)
2650 sRef ret = gc.aliasAnnote;
2651 sRef als = gc.aliasAnnoteAls;
2653 llassert (sRef_isValid (ret) && sRef_isValid (als));
2655 gc.aliasAnnote = sRef_undefined;
2656 return (message ("%q aliases %q", sRef_unparse (als), sRef_unparse (ret)));
2660 context_recordFileModifies (sRefSet mods)
2662 gc.modrecs = sRefSetList_add (gc.modrecs, mods);
2666 context_recordFileGlobals (globSet mods)
2668 DPRINTF (("Recording file globals: %s", globSet_unparse (mods)));
2669 /*@access globSet@*/ context_recordFileModifies (mods); /*@noaccess globSet@*/
2673 context_setCommentMarkerChar (char c)
2675 llassert (c != '\0');
2677 context_setValue (FLG_COMMENTCHAR, (int) c);
2681 context_getCommentMarkerChar (void)
2683 return ((char) context_getValue (FLG_COMMENTCHAR));
2687 context_setValue (flagcode flag, int val)
2689 int index = flagcode_valueIndex (flag);
2691 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2699 llerror_flagWarning (message ("Value for %s must be a positive "
2700 "number (given %d)",
2701 flagcode_unparse (flag), val));
2704 if (flag == FLG_LINELEN && val < MINLINELEN)
2706 llerror_flagWarning (message ("Value for %s must be at least %d (given %d)",
2707 flagcode_unparse (flag),
2713 case FLG_INCLUDENEST:
2714 case FLG_CONTROLNESTDEPTH:
2715 case FLG_STRINGLITERALLEN:
2716 case FLG_NUMSTRUCTFIELDS:
2717 case FLG_NUMENUMMEMBERS:
2718 case FLG_INDENTSPACES:
2722 llerror_flagWarning (message ("Value for %s must be a non-negative "
2723 "number (given %d)",
2724 flagcode_unparse (flag), val));
2733 gc.values[index] = val;
2737 context_setValueAndFlag (flagcode flag, int val)
2739 gc.flags[flag] = TRUE;
2740 context_setValue (flag, val);
2744 context_getValue (flagcode flag)
2746 int index = flagcode_valueIndex (flag);
2748 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2749 return (gc.values[index]);
2753 context_getCounter (flagcode flag)
2755 int index = flagcode_valueIndex (flag);
2757 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2758 return (gc.counters[index]);
2762 context_incCounter (flagcode flag)
2764 int index = flagcode_valueIndex (flag);
2766 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2768 gc.counters[index]++;
2772 context_decCounter (flagcode flag)
2774 int index = flagcode_valueIndex (flag);
2776 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2777 gc.counters[index]--;
2780 bool context_showFunction (void)
2782 return (gc.showfunction);
2786 context_setString (flagcode flag, cstring val)
2788 int index = flagcode_stringIndex (flag);
2790 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2792 if (flag == FLG_SYSTEMDIRS)
2794 llassert (cstring_isDefined (val));
2796 if (cstring_firstChar (val) == '\"')
2799 cstring tval = cstring_copy (cstring_suffix (val, 1));
2801 if (cstring_lastChar (tval) != '\"')
2803 int n = cstring_length (tval) - 1;
2805 while (isspace ((int) cstring_getChar (tval, n)))
2810 if (cstring_getChar (tval, n) != '\"')
2812 llerror_flagWarning (message ("Setting -systemdirs to string with unmatching quotes: %s", val));
2816 cstring otval = tval;
2817 tval = cstring_prefix (tval, n);
2818 cstring_free (otval);
2822 val = cstring_copy (cstring_clip (tval, cstring_length (tval) - 1));
2823 DPRINTF (("val = %s", val));
2824 cstring_free (tval);
2825 cstring_free (oval);
2829 if (flag == FLG_TMPDIR)
2831 llassert (cstring_isDefined (val));
2833 if (cstring_length (val) == 0)
2836 val = message (".%s", cstring_makeLiteralTemp (CONNECTSTR));
2838 else if (cstring_lastChar (val) != CONNECTCHAR)
2840 val = cstring_appendChar (val, CONNECTCHAR);
2848 if (cstring_length (val) >= 1
2849 && cstring_firstChar (val) == '"')
2851 llerror_flagWarning (message
2852 ("setting %s to string beginning with \". You probably "
2853 "don't meant to have the \"'s.",
2854 flagcode_unparse (flag)));
2857 if (flag == FLG_BOOLTYPE)
2862 gc.strings[index] = val;
2865 static /*@exposed@*/ cstring
2866 context_exposeString (flagcode flag)
2868 int index = flagcode_stringIndex (flag);
2870 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2871 return (gc.strings[index]);
2875 context_getString (flagcode flag)
2877 return (context_exposeString (flag));
2881 context_resetErrors (void)
2886 void context_initMod (void)
2887 /*@globals undef gc; @*/
2889 gc.kind = CX_GLOBAL;
2891 gc.savekind = CX_ERROR;
2892 gc.savecont.glob = FALSE;
2894 gc.instandardlib = FALSE;
2897 gc.linesprocessed = 0;
2898 gc.speclinesprocessed = 0;
2899 gc.insuppressregion = FALSE;
2900 gc.macroMissingParams = FALSE;
2901 gc.preprocessing = FALSE;
2902 gc.incommandline = FALSE;
2903 gc.mc = macrocache_create ();
2905 gc.maxmods = DEFAULTMAXMODS;
2906 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
2908 gc.library = FLG_ANSILIB;
2910 gc.locstack = filelocStack_new ();
2911 gc.modrecs = sRefSetList_undefined;
2912 gc.anyExports = FALSE;
2914 gc.ftab = fileTable_create ();
2915 gc.msgLog = messageLog_new ();
2916 gc.inimport = FALSE;
2917 gc.inDerivedFile = FALSE;
2918 gc.inheader = FALSE;
2919 gc.markers = flagMarkerList_new ();
2920 gc.cont.glob = TRUE;
2921 gc.showfunction = FALSE;
2922 gc.msgAnnote = cstring_undefined;
2923 gc.aliasAnnote = sRef_undefined;
2924 gc.aliasAnnoteAls = sRef_undefined;
2925 gc.boolType = ctype_bool;
2926 gc.mods = sRefSet_new ();
2928 gc.saveloc = fileloc_undefined;
2930 gc.inmacrocache = FALSE;
2931 gc.inclause = NOCLAUSE;
2932 gc.clauses = clauseStack_new ();
2933 gc.globs = globSet_new ();
2934 gc.nacct = typeIdSet_emptySet ();
2935 gc.acct = typeIdSet_emptySet ();
2936 gc.facct = typeIdSet_emptySet ();
2937 gc.savedFlags = FALSE;
2938 gc.pushloc = fileloc_undefined;
2939 gc.protectVars = FALSE;
2940 gc.justpopped = FALSE;
2941 gc.isNullGuarded = NO;
2942 gc.globs_used = globSet_undefined;
2946 gc.setGlobally[code] = FALSE;
2947 gc.setLocally[code] = FALSE;
2948 } end_allFlagCodes ;
2952 context_resetAllFlags ();
2953 assertSet (gc.flags); /* Can't use global in defines */
2954 assertSet (gc.saveflags);
2955 assertSet (gc.values);
2956 assertSet (gc.strings);
2958 conext_resetAllCounters ();
2959 assertSet (gc.counters);
2961 context_setMode (DEFAULT_MODE);
2963 gc.stateTable = metaStateTable_create ();
2964 gc.annotTable = annotationTable_create ();
2966 gc.inFunctionHeader = FALSE;
2968 DPRINTF (("Annotations: \n%s",
2969 cstring_toCharsSafe (annotationTable_unparse (gc.annotTable))));
2970 DPRINTF (("State: \n%s",
2971 cstring_toCharsSafe (metaStateTable_unparse (gc.stateTable))));
2976 context_typeofZero (void)
2978 ctype ct = ctype_int;
2980 if (context_getFlag (FLG_ZEROPTR))
2982 ct = ctype_makeConj (ct, ctype_voidPointer);
2985 if (context_getFlag (FLG_ZEROBOOL)) {
2986 ct = ctype_makeConj (ct, ctype_bool);
2993 context_typeofOne (void)
2995 ctype ct = ctype_int;
2997 /* 1 is on longer a bool (was before 2.4)
2998 if (!context_getFlag (FLG_ABSTRACTBOOL))
3000 ct = ctype_makeConj (ct, ctype_bool);
3008 context_unparse (void)
3015 s = message ("LCL File: %q", fileloc_unparse (g_currentloc));
3018 s = message ("LCL Lib File: %q", fileloc_unparse (g_currentloc));
3021 s = message ("Global Context:%q", fileloc_unparse (g_currentloc));
3024 s = message ("Inner Context [%d] : %q",
3026 fileloc_unparse (g_currentloc));
3029 s = message ("Function %q :%q \n\taccess %q\n\tmodifies %q",
3030 uentry_unparse (gc.cont.fcn),
3031 fileloc_unparse (g_currentloc),
3032 typeIdSet_unparse (gc.acct),
3033 sRefSet_unparse (gc.mods));
3036 s = message ("Function Macro %q", uentry_unparse (gc.cont.fcn));
3038 case CX_UNKNOWNMACRO:
3039 s = message ("Forward Specified Macro %q", uentry_unparse (gc.cont.fcn));
3042 s = message ("Constant Macro %q", uentry_unparse (gc.cont.fcn));
3045 s = message ("Iter definition %q", uentry_unparse (gc.cont.fcn));
3048 s = message ("Iter end %q", uentry_unparse (gc.cont.fcn));
3050 case CX_FCNDECLARATION:
3051 s = message ("Function declaration %q", uentry_unparse (gc.cont.fcn));
3054 s = message ("Un-unparseable context: %d", (int) gc.kind);
3058 s = message ("%q\naccess: %q", s, context_unparseAccess ());
3063 context_currentFunctionType (void)
3065 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
3067 return (uentry_getType (gc.cont.fcn));
3069 else if (gc.kind == CX_INNER)
3071 llcontbuglit ("context_currentFunctionType: inner context");
3072 do { context_exitInnerPlain (); } while (gc.kind == CX_INNER);
3073 return (context_currentFunctionType ());
3077 llcontbuglit ("context_currentFunctionType: not in function");
3078 return (ctype_undefined);
3083 context_enterInnerContext (void)
3085 if (context_getFlag (FLG_GRAMMAR))
3087 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3090 if (gc.kind == CX_GLOBAL)
3095 else if (gc.kind == CX_INNER)
3104 usymtab_enterScope ();
3105 pushClause (NOCLAUSE);
3109 context_exitInnerPlain (void) /*@modifies gc;@*/
3111 context_exitInner (exprNode_undefined);
3115 context_exitInner (exprNode exp)
3117 if (context_getFlag (FLG_GRAMMAR))
3119 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3122 llassertprint (gc.inclause == NOCLAUSE || gc.inclause == CASECLAUSE,
3123 ("inclause = %s", clause_nameTaken (gc.inclause)));
3125 clauseStack_removeFirst (gc.clauses, NOCLAUSE);
3126 gc.inclause = topClause (gc.clauses);
3128 if (gc.kind == CX_INNER)
3130 if (--gc.cont.cdepth == 0)
3132 gc.kind = CX_GLOBAL;
3133 gc.cont.glob = TRUE;
3138 if (gc.kind == CX_GLOBAL)
3140 llcontbuglit ("Attempt to exit global context");
3145 usymtab_exitScope (exp);
3150 context_enterStructInnerContext (void)
3152 if (context_getFlag (FLG_GRAMMAR))
3154 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3157 if (gc.kind == CX_GLOBAL)
3162 else if (gc.kind == CX_INNER)
3171 usymtab_enterScope ();
3173 if (context_getFlag (FLG_GRAMMAR))
3175 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3180 context_exitStructInnerContext (void)
3182 if (context_getFlag (FLG_GRAMMAR))
3184 lldiagmsg (message ("Exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3187 if (gc.kind == CX_INNER)
3189 if (gc.cont.cdepth <= 0)
3191 llcontbuglit ("Attempt to exit inner context with no depth");
3192 gc.kind = CX_GLOBAL;
3193 gc.cont.glob = TRUE;
3199 if (gc.cont.cdepth == 0)
3201 gc.kind = CX_GLOBAL;
3202 gc.cont.glob = TRUE;
3208 if (gc.kind == CX_GLOBAL)
3210 llcontbuglit ("Attempt to exit global context");
3215 usymtab_exitScope (exprNode_undefined);
3217 if (context_getFlag (FLG_GRAMMAR))
3219 lldiagmsg (message ("After exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3224 context_exitInnerSafe (void)
3226 if (context_getFlag (FLG_GRAMMAR))
3228 lldiagmsg (message ("Exit inner safe: %q", context_unparse ()));
3231 if (gc.kind == CX_INNER)
3233 if (--gc.cont.cdepth <= 0)
3238 else if (gc.kind == CX_GLOBAL)
3240 llcontbuglit ("Attempt to exit global context");
3245 if (usymtab_inDeepScope ())
3247 usymtab_exitScope (exprNode_undefined);
3253 void setModuleAccess (void)
3255 gc.facct = typeIdSet_emptySet ();
3257 if (fileId_isValid (currentFile ()))
3259 cstring baseName = fileloc_getBase (g_currentloc);
3261 if (context_getFlag (FLG_ACCESSFILE))
3263 if (usymtab_existsType (baseName))
3265 gc.facct = typeIdSet_insert (gc.facct,
3266 usymtab_getTypeId (baseName));
3274 if (context_getFlag (FLG_ACCESSMODULE))
3277 bool hasaccess = FALSE;
3279 for (i = 0; i < gc.nmods; i++)
3281 if (cstring_equal (baseName, gc.moduleaccess[i].file))
3283 gc.facct = typeIdSet_union (gc.facct, gc.moduleaccess[i].daccess);
3292 gc.inheader = fileId_isHeader (currentFile ());
3296 llcontbuglit ("Current file not defined\n");
3297 gc.facct = typeIdSet_emptySet ();
3299 gc.inheader = FALSE;
3302 /* 17 Jan 1995: forgot to clear nacct */
3304 gc.nacct = typeIdSet_emptySet ();
3308 context_enterFileAux (void)
3314 context_enterFile (void)
3316 context_enterFileAux ();
3317 usymtab_enterFile ();
3321 context_enterMacroFile (void)
3323 context_enterFileAux ();
3327 context_inFunction (void)
3329 kcontext ck = gc.kind;
3331 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN) || (ck == CX_INNER));
3335 context_inFunctionLike (void)
3337 return (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
3338 || gc.kind == CX_FCNDECLARATION
3339 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
3343 context_inRealFunction (void)
3345 kcontext ck = gc.kind;
3347 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN));
3351 context_processAllMacros (void)
3353 usymtab_enterFile ();
3355 gc.inmacrocache = TRUE;
3356 macrocache_processUndefinedElements (gc.mc);
3358 usymtab_exitFile ();
3360 gc.inmacrocache = FALSE;
3361 macrocache_finalize ();
3365 ** this happens once at the end of each C file
3367 ** check each Macro that was defined in current file.c or current file.h
3372 context_processMacros (void)
3374 if (fileId_isValid (currentFile ()))
3377 cstring cbase = fileLib_removePathFree (fileLib_removeAnyExtension (fileName (currentFile ())));
3379 gc.inmacrocache = TRUE;
3381 DPRINTF (("Processing macros: %s", cbase));
3382 lastfl = macrocache_processFileElements (gc.mc, cbase);
3383 DPRINTF (("Processing macros: %s", fileloc_unparse (lastfl)));
3385 cstring_free (cbase);
3387 if (fileloc_isDefined (lastfl))
3389 g_currentloc = fileloc_update (g_currentloc, lastfl);
3393 gc.inmacrocache = FALSE;
3398 context_processingMacros (void)
3400 return (gc.inmacrocache);
3404 context_exitCFile (void)
3406 if (gc.kind != CX_GLOBAL)
3409 (cstring_makeLiteral ("File ended outside global scope"));
3412 if (gc.insuppressregion)
3414 /* gack...don't reverse the order of these lines! ;-> */
3415 gc.insuppressregion = FALSE;
3416 llerrorlit (FLG_SYNTAX,
3417 "File ended in ignore errors region, "
3418 "possible missing /*@end*/");
3421 /* fix up parse errors */
3423 while (!usymtab_inFileScope ())
3425 usymtab_quietExitScope (g_currentloc);
3429 ** Clear the file-specific modifies information.
3432 sRefSetList_elements (gc.modrecs, mods)
3434 sRefSet_clearStatics (mods);
3435 } end_sRefSetList_elements ;
3437 sRefSetList_clear (gc.modrecs);
3439 context_processMacros ();
3442 usymtab_exitFile ();
3444 gc.inDerivedFile = FALSE;
3445 filelocStack_clear (gc.locstack);
3447 gc.nacct = typeIdSet_emptySet (); /* empty noaccess */
3449 gc.cont.glob = TRUE;
3453 context_restoreFlagSettings ();
3454 gc.savedFlags = FALSE;
3458 DPRINTF (("After exiting file: "));
3459 usymtab_printAll ();
3464 context_exitMacroCache (void)
3466 if (gc.kind != CX_GLOBAL)
3468 if (context_inMacro ())
3469 /* this is okay, file could end without newline in macro */
3471 DPRINTF (("Still in macro: %s",
3472 context_unparse ()));
3473 context_exitFunction ();
3477 llcontbug (message ("context_exitMacroCache: outside global scope: %q",
3478 context_unparse ()));
3479 gc.kind = CX_GLOBAL;
3484 ** no longer valid here
3485 ** if (gc.insuppressregion)
3487 ** gc.insuppressregion = FALSE;
3488 ** llerror ("File ended in ignore errors region, possible missing @");
3492 gc.cont.glob = TRUE;
3496 context_saveLocation (void)
3498 /* was llassert (fileloc_isUndefined (gc.saveloc)) */
3499 fileloc_free (gc.saveloc);
3500 gc.saveloc = fileloc_copy (g_currentloc);
3504 context_getSaveLocation (void)
3506 fileloc fl = gc.saveloc;
3507 gc.saveloc = fileloc_undefined;
3511 /*@observer@*/ cstring
3512 context_inFunctionName (void)
3514 if (gc.kind == CX_FUNCTION
3515 || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO
3516 || gc.kind == CX_MACROCONST
3517 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND)
3519 return (uentry_rawName (gc.cont.fcn));
3523 llcontbuglit ("context_inFunctionName: not in function");
3524 return (cstring_undefined);
3529 context_userSetFlag (flagcode f, bool b)
3531 DPRINTF (("set flag: %s", flagcode_unparse (f)));
3533 if (f == FLG_NEVERINCLUDE && b)
3535 if (gc.flags[FLG_EXPORTHEADER])
3537 llerror_flagWarning (cstring_makeLiteral
3538 ("setting +neverinclude after +exportheader. "
3539 "Turning off exportheader, since headers are not checked "
3540 "when +neverinclude is used."));
3542 gc.flags[FLG_EXPORTHEADER] = FALSE;
3547 if (f == FLG_EXPORTHEADER && b)
3549 if (gc.flags[FLG_NEVERINCLUDE])
3551 llerror_flagWarning (cstring_makeLiteral
3552 ("setting +exportheader after +neverinclude. "
3553 "Not setting exportheader, since headers are not checked "
3554 "when +neverinclude is used."));
3555 gc.flags[FLG_EXPORTHEADER] = FALSE;
3561 if (context_getFlag (FLG_WARNFLAGS) && f != FLG_NOF && f != FLG_OPTF)
3563 bool lastsetting = context_getFlag (f);
3565 if (bool_equal (lastsetting, b)
3566 && !flagcode_isSpecialFlag (f)
3567 && !flagcode_isIdemFlag (f)
3568 && !flagcode_hasArgument (f))
3570 llerror_flagWarning (message ("setting %s%s redundant with current value",
3571 cstring_makeLiteralTemp (b ? "+" : "-"),
3572 flagcode_unparse (f)));
3576 if (flagcode_isWarnUseFlag (f) && b)
3578 if (!context_getFlag (FLG_WARNUSE))
3580 llerror_flagWarning (message ("flag +%s is canceled by -warnuse",
3581 flagcode_unparse (f)));
3587 if (flagcode_isLibraryFlag (f))
3589 if (gc.library != FLG_ANSILIB
3592 llerror_flagWarning (message ("selecting library %s after library %s was "
3593 "selected (only one library may be used)",
3594 flagcode_unparse (f),
3595 flagcode_unparse (gc.library)));
3598 if (f == FLG_UNIXLIB)
3600 if (context_getFlag (FLG_WARNUNIXLIB))
3602 llerror_flagWarning (cstring_makeLiteral
3603 ("selecting unix library. Unix library is "
3604 "ad hoc addition to POSIX library. Recommend "
3605 "use +posixlib to select POSIX library instead. "
3606 "Use -warnunixlib to suppress this message."));
3613 if (flagcode_isNameChecksFlag (f) && b && !context_maybeSet (FLG_NAMECHECKS))
3615 llerror_flagWarning (message
3616 ("setting +%s will not produce warnings with -namechecks. Must set +namechecks also.",
3617 flagcode_unparse (f)));
3620 gc.setGlobally[f] = TRUE;
3621 context_setFlag (f, b);
3625 context_fileSetFlag (flagcode f, ynm set)
3629 context_saveFlagSettings ();
3632 if (ynm_isOff (set))
3634 context_setFlagAux (f, FALSE, TRUE, FALSE);
3636 else if (ynm_isOn (set))
3638 context_setFlagAux (f, TRUE, TRUE, FALSE);
3639 gc.setLocally[f] = TRUE;
3643 context_restoreFlag (f);
3648 context_restoreFlag (flagcode f)
3655 message ("Attempt to restore flag %s when no file scope flags "
3657 flagcode_unparse (f)),
3662 context_addFlagMarker (f, MAYBE);
3663 context_setFlagAux (f, gc.saveflags[f], FALSE, TRUE);
3669 context_setFlag (flagcode f, bool b)
3671 context_setFlagAux (f, b, FALSE, FALSE);
3675 context_setFlagTemp (flagcode f, bool b)
3677 DPRINTF (("Set flag temp: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3682 # define DOSET(ff,b) \
3683 do { if (inFile) { gc.setLocally[ff] = TRUE; \
3684 context_addFlagMarker (ff, ynm_fromBool (b)); } \
3685 DPRINTF (("set flag: %s / %s", flagcode_unparse (ff), bool_unparse (b))); \
3686 gc.flags[ff] = b; } while (FALSE)
3689 context_setFlagAux (flagcode f, bool b, bool
3690 inFile, /*@unused@*/ bool isRestore)
3692 DPRINTF (("set flag: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3694 if (f == FLG_USESTDERR)
3697 g_msgstream = stderr;
3699 g_msgstream = stdout;
3704 ** Removed test for special flags.
3707 if (flagcode_isIdemFlag (f))
3716 if (f >= FLG_ITS4MOSTRISKY && f <= FLG_ITS4LOWRISK)
3718 if (b) /* Turing higher level on, turns on all lower levels */
3722 case FLG_ITS4MOSTRISKY:
3723 DOSET (FLG_ITS4VERYRISKY, b);
3725 case FLG_ITS4VERYRISKY:
3726 DOSET (FLG_ITS4RISKY, b);
3729 DOSET (FLG_ITS4MODERATERISK, b);
3731 case FLG_ITS4MODERATERISK:
3732 DOSET (FLG_ITS4LOWRISK, b);
3734 case FLG_ITS4LOWRISK:
3739 else /* Turning level off, turns off all higher levels */
3743 case FLG_ITS4LOWRISK:
3744 DOSET (FLG_ITS4MODERATERISK, b);
3746 case FLG_ITS4MODERATERISK:
3747 DOSET (FLG_ITS4RISKY, b);
3750 DOSET (FLG_ITS4VERYRISKY, b);
3752 case FLG_ITS4VERYRISKY:
3753 DOSET (FLG_ITS4MOSTRISKY, b);
3755 case FLG_ITS4MOSTRISKY:
3765 DOSET (FLG_ALLEMPTY, b);
3766 DOSET (FLG_IFEMPTY, b);
3767 DOSET (FLG_WHILEEMPTY, b);
3768 DOSET (FLG_FOREMPTY, b);
3771 DOSET (FLG_PREDBOOL, b);
3772 DOSET (FLG_PREDBOOLINT, b);
3773 DOSET (FLG_PREDBOOLPTR, b);
3774 DOSET (FLG_PREDBOOLOTHERS, b);
3777 DOSET (FLG_CHECKSTRICTGLOBALIAS, b);
3778 DOSET (FLG_CHECKEDGLOBALIAS, b);
3779 DOSET (FLG_CHECKMODGLOBALIAS, b);
3780 DOSET (FLG_UNCHECKEDGLOBALIAS, b);
3783 DOSET (FLG_ALLBLOCK, b);
3784 DOSET (FLG_IFBLOCK, b);
3785 DOSET (FLG_WHILEBLOCK, b);
3786 DOSET (FLG_FORBLOCK, b);
3800 DOSET (FLG_GRAMMAR, b);
3802 case FLG_CODEIMPONLY:
3803 DOSET (FLG_CODEIMPONLY, b);
3804 DOSET (FLG_GLOBIMPONLY, b);
3805 DOSET (FLG_RETIMPONLY, b);
3806 DOSET (FLG_STRUCTIMPONLY, b);
3808 case FLG_SPECALLIMPONLY:
3809 DOSET (FLG_SPECALLIMPONLY, b);
3810 DOSET (FLG_SPECGLOBIMPONLY, b);
3811 DOSET (FLG_SPECRETIMPONLY, b);
3812 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3814 case FLG_ALLIMPONLY:
3815 DOSET (FLG_ALLIMPONLY, b);
3816 DOSET (FLG_GLOBIMPONLY, b);
3817 DOSET (FLG_RETIMPONLY, b);
3818 DOSET (FLG_STRUCTIMPONLY, b);
3819 DOSET (FLG_SPECGLOBIMPONLY, b);
3820 DOSET (FLG_SPECRETIMPONLY, b);
3821 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3823 case FLG_ANSILIMITS:
3824 DOSET (FLG_ANSILIMITS, b);
3825 DOSET (FLG_CONTROLNESTDEPTH, b);
3826 DOSET (FLG_STRINGLITERALLEN, b);
3827 DOSET (FLG_INCLUDENEST, b);
3828 DOSET (FLG_NUMSTRUCTFIELDS, b);
3829 DOSET (FLG_NUMENUMMEMBERS, b);
3833 context_setValue (FLG_CONTROLNESTDEPTH, DEFAULT_CONTROLNESTDEPTH);
3834 context_setValue (FLG_STRINGLITERALLEN, DEFAULT_STRINGLITERALLEN);
3835 context_setValue (FLG_INCLUDENEST, DEFAULT_INCLUDENEST);
3836 context_setValue (FLG_NUMSTRUCTFIELDS, DEFAULT_NUMSTRUCTFIELDS);
3837 context_setValue (FLG_NUMENUMMEMBERS, DEFAULT_NUMENUMMEMBERS);
3840 case FLG_EXTERNALNAMELEN:
3841 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3842 DOSET (FLG_EXTERNALNAMELEN, TRUE);
3844 case FLG_INTERNALNAMELEN:
3845 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3846 DOSET (FLG_INTERNALNAMELEN, TRUE);
3848 case FLG_EXTERNALNAMECASEINSENSITIVE:
3849 DOSET (FLG_EXTERNALNAMECASEINSENSITIVE, b);
3851 if (b && !gc.flags[FLG_DISTINCTEXTERNALNAMES])
3853 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3854 context_setValue (FLG_EXTERNALNAMELEN, 0);
3857 case FLG_INTERNALNAMECASEINSENSITIVE:
3858 DOSET (FLG_INTERNALNAMECASEINSENSITIVE, b);
3860 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3862 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3863 context_setValue (FLG_INTERNALNAMELEN, 0);
3866 case FLG_INTERNALNAMELOOKALIKE:
3867 DOSET (FLG_INTERNALNAMELOOKALIKE, b);
3869 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3871 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3872 context_setValue (FLG_INTERNALNAMELEN, 0);
3876 DOSET (FLG_MODNOMODS, b);
3877 DOSET (FLG_MODGLOBSUNSPEC, b);
3878 DOSET (FLG_MODSTRICTGLOBSUNSPEC, b);
3881 DOSET (FLG_EXPORTVAR, b);
3882 DOSET (FLG_EXPORTFCN, b);
3883 DOSET (FLG_EXPORTTYPE, b);
3884 DOSET (FLG_EXPORTMACRO, b);
3885 DOSET (FLG_EXPORTCONST, b);
3886 gc.anyExports = TRUE;
3889 DOSET (FLG_RETEXPOSE, b);
3890 DOSET (FLG_ASSIGNEXPOSE, b);
3891 DOSET (FLG_CASTEXPOSE, b);
3894 DOSET (FLG_RETVALBOOL, b);
3895 DOSET (FLG_RETVALINT, b);
3896 DOSET (FLG_RETVALOTHER, b);
3901 DOSET (FLG_EXPORTLOCAL, FALSE);
3902 DOSET (FLG_DECLUNDEF, FALSE);
3903 DOSET (FLG_SPECUNDEF, FALSE);
3904 DOSET (FLG_TOPUNUSED, FALSE);
3908 DOSET (FLG_LOOPLOOPBREAK, b);
3909 DOSET (FLG_LOOPSWITCHBREAK, b);
3910 DOSET (FLG_SWITCHLOOPBREAK, b);
3911 DOSET (FLG_SWITCHSWITCHBREAK, b);
3912 DOSET (FLG_LOOPLOOPCONTINUE, b);
3913 DOSET (FLG_DEEPBREAK, b);
3916 DOSET (FLG_ACCESSMODULE, b);
3917 DOSET (FLG_ACCESSFILE, b);
3918 DOSET (FLG_ACCESSCZECH, b);
3921 DOSET (FLG_ALLMACROS, b);
3922 DOSET (FLG_FCNMACROS, b);
3923 DOSET (FLG_CONSTMACROS, b);
3926 if (b) { DOSET (FLG_ACCESSCZECH, b); }
3927 DOSET (FLG_CZECHFUNCTIONS, b);
3928 DOSET (FLG_CZECHVARS, b);
3929 DOSET (FLG_CZECHCONSTANTS, b);
3930 DOSET (FLG_CZECHTYPES, b);
3933 if (b) { DOSET (FLG_ACCESSSLOVAK, b); }
3934 DOSET (FLG_SLOVAKFUNCTIONS, b);
3935 DOSET (FLG_SLOVAKVARS, b);
3936 DOSET (FLG_SLOVAKCONSTANTS, b);
3937 DOSET (FLG_SLOVAKTYPES, b);
3939 case FLG_CZECHOSLOVAK:
3940 if (b) { DOSET (FLG_ACCESSCZECHOSLOVAK, b); }
3941 DOSET (FLG_CZECHOSLOVAKFUNCTIONS, b);
3942 DOSET (FLG_CZECHOSLOVAKVARS, b);
3943 DOSET (FLG_CZECHOSLOVAKCONSTANTS, b);
3944 DOSET (FLG_CZECHOSLOVAKTYPES, b);
3947 DOSET (FLG_NULLSTATE, b);
3948 DOSET (FLG_NULLDEREF, b);
3949 DOSET (FLG_NULLASSIGN, b);
3950 DOSET (FLG_NULLPASS, b);
3951 DOSET (FLG_NULLRET, b);
3954 DOSET (FLG_NULLSTATE, b);
3955 DOSET (FLG_NULLDEREF, b);
3956 DOSET (FLG_NULLASSIGN, b);
3957 DOSET (FLG_NULLPASS, b);
3958 DOSET (FLG_NULLRET, b);
3959 DOSET (FLG_COMPDEF, b);
3960 DOSET (FLG_COMPMEMPASS, b);
3961 DOSET (FLG_UNIONDEF, b);
3962 DOSET (FLG_MEMTRANS, b);
3963 DOSET (FLG_USERELEASED, b);
3964 DOSET (FLG_ALIASUNIQUE, b);
3965 DOSET (FLG_MAYALIASUNIQUE, b);
3966 DOSET (FLG_MUSTFREE, b);
3967 DOSET (FLG_MUSTDEFINE, b);
3968 DOSET (FLG_GLOBSTATE, b);
3969 DOSET (FLG_COMPDESTROY, b);
3970 DOSET (FLG_MUSTNOTALIAS, b);
3971 DOSET (FLG_MEMIMPLICIT, b);
3972 DOSET (FLG_BRANCHSTATE, b);
3973 /*@fallthrough@*/ /* also sets memtrans flags */
3975 DOSET (FLG_MEMTRANS, b);
3976 DOSET (FLG_EXPOSETRANS, b);
3977 DOSET (FLG_OBSERVERTRANS, b);
3978 DOSET (FLG_DEPENDENTTRANS, b);
3979 DOSET (FLG_NEWREFTRANS, b);
3980 DOSET (FLG_ONLYTRANS, b);
3981 DOSET (FLG_OWNEDTRANS, b);
3982 DOSET (FLG_FRESHTRANS, b);
3983 DOSET (FLG_SHAREDTRANS, b);
3984 DOSET (FLG_TEMPTRANS, b);
3985 DOSET (FLG_KEPTTRANS, b);
3986 DOSET (FLG_REFCOUNTTRANS, b);
3987 DOSET (FLG_STATICTRANS, b);
3988 DOSET (FLG_UNKNOWNTRANS, b);
3989 DOSET (FLG_KEEPTRANS, b);
3990 DOSET (FLG_IMMEDIATETRANS, b);
3997 if (b && !gc.anyExports
3998 && (f == FLG_EXPORTVAR || f == FLG_EXPORTFCN
3999 || f == FLG_EXPORTTYPE || f == FLG_EXPORTMACRO
4000 || f == FLG_EXPORTCONST
4001 || f == FLG_EXPORTANY))
4003 gc.anyExports = TRUE;
4008 context_maybeSet (flagcode d)
4010 return (gc.flags[d] || gc.setLocally[d]);
4014 context_getFlag (flagcode d)
4016 return (gc.flags[d]);
4020 context_flagOn (flagcode f, fileloc loc)
4022 return (!context_suppressFlagMsg (f, loc));
4025 static void context_saveFlagSettings (void)
4027 gc.savedFlags = TRUE;
4028 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4029 memcpy (gc.saveflags, gc.flags, sizeof (gc.flags));
4032 static void context_restoreFlagSettings (void)
4034 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4035 memcpy (gc.flags, gc.saveflags, sizeof (gc.flags));
4036 gc.savedFlags = FALSE;
4039 void context_setFilename (fileId fid, int lineno)
4040 /*@globals fileloc g_currentloc;@*/
4041 /*@modifies g_currentloc@*/
4043 if (fileId_baseEqual (currentFile (), fid))
4050 fileloc_setColumn (g_currentloc, 0);
4052 if (fileloc_isSpecialFile (g_currentloc))
4054 gc.inDerivedFile = TRUE;
4057 if (filelocStack_popPushFile (gc.locstack, g_currentloc))
4059 int maxdepth = context_getValue (FLG_INCLUDENEST);
4061 if (filelocStack_size (gc.locstack) > maxdepth)
4063 int depth = filelocStack_includeDepth (gc.locstack);
4065 if (depth > maxdepth)
4069 message ("Maximum include nesting depth "
4070 "(%d, current depth %d) exceeded",
4073 filelocStack_nextTop (gc.locstack)))
4075 filelocStack_printIncludes (gc.locstack);
4081 g_currentloc = fileloc_create (fid, lineno, 1);
4082 gc.inheader = fileId_isHeader (currentFile ());
4084 context_enterFileAux ();
4088 void context_enterIterDef (/*@observer@*/ uentry le)
4090 context_enterMacro (le);
4091 gc.acct = typeIdSet_subtract (gc.facct, gc.nacct);
4092 gc.kind = CX_ITERDEF;
4095 void context_enterIterEnd (/*@observer@*/ uentry le)
4097 context_enterMacro (le);
4098 gc.kind = CX_ITEREND;
4102 context_destroyMod (void)
4103 /*@globals killed gc@*/
4106 ctype_destroyMod ();
4110 fileTable_free (gc.ftab);
4111 filelocStack_free (gc.locstack);
4113 gc.ftab = fileTable_undefined;
4115 macrocache_free (gc.mc);
4116 sfree (gc.moduleaccess);
4119 fileloc_free (gc.saveloc); gc.saveloc = fileloc_undefined;
4120 fileloc_free (gc.pushloc); gc.pushloc = fileloc_undefined;
4123 sRefSetList_free (gc.modrecs);
4125 flagMarkerList_free (gc.markers);
4127 messageLog_free (gc.msgLog);
4129 clauseStack_free (gc.clauses);
4132 cstring_free (gc.msgAnnote);
4133 globSet_free (gc.globs_used);
4134 metaStateTable_free (gc.stateTable);
4135 annotationTable_free (gc.annotTable);
4142 bool context_msgBoolInt (void)
4144 return gc.flags [FLG_BOOLINT];
4147 bool context_msgCharInt (void)
4149 return gc.flags [FLG_CHARINT];
4152 bool context_msgEnumInt (void)
4154 return gc.flags [FLG_ENUMINT];
4157 bool context_msgPointerArith (void)
4159 return gc.flags [FLG_POINTERARITH];
4162 bool context_msgStrictOps (void)
4164 return gc.flags [FLG_STRICTOPS];
4168 bool context_msgLh (void)
4170 return gc.flags [FLG_DOLH];
4174 void context_pushLoc (void)
4176 fileloc_free (gc.pushloc);
4177 gc.pushloc = gc.saveloc;
4178 gc.saveloc = fileloc_undefined;
4181 void context_popLoc (void)
4183 gc.saveloc = fileloc_update (gc.saveloc, gc.pushloc);
4186 bool context_inGlobalScope (void)
4188 return (usymtab_inFileScope() || usymtab_inGlobalScope ());
4191 bool context_inInnerScope (void)
4193 return (gc.kind == CX_INNER);
4196 void context_setProtectVars (void)
4198 gc.protectVars = TRUE;
4201 bool context_anyErrors (void)
4203 return (gc.numerrors > 0);
4206 void context_hasError (void)
4209 DPRINTF (("num errors: %d", gc.numerrors));
4212 int context_numErrors (void)
4214 return gc.numerrors;
4217 bool context_neednl (void)
4222 void context_setNeednl (void)
4227 int context_getExpect (void)
4229 return (context_getValue (FLG_EXPECT));
4233 int context_getLCLExpect (void)
4235 return (context_getValue (FLG_LCLEXPECT));
4239 int context_getLimit (void)
4241 return (context_getValue (FLG_LIMIT));
4244 bool context_unlimitedMessages (void)
4246 return (context_getLimit () < 0);
4249 void context_releaseVars (void)
4251 llassert (gc.protectVars);
4252 gc.protectVars = FALSE;
4255 void context_sizeofReleaseVars (void)
4257 /* If there is a nested sizeof, this might not hold:
4258 llassert (gc.protectVars);
4261 gc.protectVars = FALSE;
4264 bool context_inProtectVars (void)
4266 return (gc.protectVars);
4269 void context_hideShowscan (void)
4271 gc.flags[FLG_SHOWSCAN] = FALSE;
4274 void context_unhideShowscan (void)
4276 gc.flags[FLG_SHOWSCAN] = TRUE;
4279 bool context_inHeader (void)
4281 return (gc.inheader);
4284 fileTable context_fileTable (void)
4289 cstring context_tmpdir (void)
4291 return (context_getString (FLG_TMPDIR));
4294 messageLog context_messageLog (void)
4299 bool context_inMacroFunction (void)
4301 return (gc.kind == CX_MACROFCN);
4304 bool context_inMacroConstant (void)
4306 return (gc.kind == CX_MACROCONST);
4309 bool context_inUnknownMacro (void)
4311 return (gc.kind == CX_UNKNOWNMACRO);
4314 void context_setShownFunction (void)
4316 gc.showfunction = FALSE;
4319 bool context_doDump (void)
4321 return cstring_isNonEmpty (context_getString (FLG_DUMP));
4324 bool context_doMerge (void)
4326 return cstring_isNonEmpty (context_getString (FLG_MERGE));
4329 cstring context_getDump (void)
4331 return context_getString (FLG_DUMP);
4334 cstring context_getMerge (void)
4336 return context_getString (FLG_MERGE);
4340 bool context_inLCLLib (void)
4342 return (gc.kind == CX_LCLLIB);
4345 bool context_inImport (void)
4347 return (gc.inimport);
4350 void context_enterImport (void)
4355 void context_leaveImport (void)
4357 gc.inimport = FALSE;
4361 bool context_inMacro (void)
4363 return (gc.kind == CX_MACROFCN || gc.kind == CX_MACROCONST
4364 || gc.kind == CX_UNKNOWNMACRO
4365 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND);
4368 bool context_inIterDef (void)
4370 return (gc.kind == CX_ITERDEF);
4373 bool context_inIterEnd (void)
4375 return (gc.kind == CX_ITEREND);
4378 int context_getLinesProcessed (void)
4380 return (gc.linesprocessed);
4383 int context_getSpecLinesProcessed (void)
4385 return (gc.speclinesprocessed);
4389 void context_processedSpecLine (void)
4391 gc.speclinesprocessed++;
4394 void context_resetSpecLines (void)
4396 gc.speclinesprocessed = 0;
4400 bool context_inGlobalContext (void)
4402 return (gc.kind == CX_GLOBAL);
4405 static void context_quietExitScopes (void)
4408 ** Try to restore the global scope (after an error).
4411 while (!usymtab_inFileScope ())
4413 usymtab_quietExitScope (g_currentloc);
4416 gc.cont.glob = TRUE;
4417 gc.kind = CX_GLOBAL;
4420 void context_checkGlobalScope (void)
4422 if (gc.kind != CX_GLOBAL)
4424 llcontbug (message ("Not in global scope as expected: %q", context_unparse ()));
4425 context_quietExitScopes ();
4429 void context_setFileId (fileId s)
4431 g_currentloc = fileloc_updateFileId (g_currentloc, s);
4434 bool context_setBoolName (void)
4436 return (!cstring_equalLit (context_getString (FLG_BOOLTYPE),
4440 cstring context_printBoolName (void)
4442 if (context_setBoolName ())
4444 return context_getBoolName ();
4448 return cstring_makeLiteralTemp ("boolean");
4452 cstring context_getBoolName (void)
4454 return (context_getString (FLG_BOOLTYPE));
4457 cstring context_getFalseName (void)
4459 return (context_getString (FLG_BOOLFALSE));
4462 cstring context_getTrueName (void)
4464 return (context_getString (FLG_BOOLTRUE));
4467 cstring context_getLarchPath (void)
4469 return (context_getString (FLG_LARCHPATH));
4472 cstring context_getLCLImportDir (void)
4474 return (context_getString (FLG_LCLIMPORTDIR));
4477 static void context_setJustPopped (void)
4479 gc.justpopped = TRUE;
4482 void context_clearJustPopped (void)
4484 gc.justpopped = FALSE;
4487 bool context_justPopped (void)
4489 return (gc.justpopped);
4492 void context_setMacroMissingParams (void)
4494 gc.macroMissingParams = TRUE;
4497 void context_resetMacroMissingParams (void)
4499 gc.macroMissingParams = FALSE;
4502 bool context_isMacroMissingParams (void)
4504 return (gc.macroMissingParams);
4507 void context_showFilelocStack (void)
4509 filelocStack_printIncludes (gc.locstack);
4512 metaStateTable context_getMetaStateTable (void)
4514 return gc.stateTable;
4517 metaStateInfo context_lookupMetaStateInfo (cstring key)
4519 return metaStateTable_lookup (gc.stateTable, key);
4522 /*@null@*/ annotationInfo context_lookupAnnotation (cstring annot)
4524 annotationInfo ainfo;
4526 ainfo = annotationTable_lookup (gc.annotTable, annot);
4531 void context_addAnnotation (annotationInfo ainfo)
4533 if (annotationTable_contains (gc.annotTable, annotationInfo_getName (ainfo)))
4537 message ("Duplicate annotation declaration: %s", annotationInfo_getName (ainfo)),
4538 annotationInfo_getLoc (ainfo));
4540 annotationInfo_free (ainfo);
4544 annotationTable_insert (gc.annotTable, ainfo);
4548 void context_addMetaState (cstring mname, metaStateInfo msinfo)
4550 if (metaStateTable_contains (gc.stateTable, mname))
4554 message ("Duplicate metastate declaration: %s", mname),
4555 metaStateInfo_getLoc (msinfo));
4556 cstring_free (mname);
4557 metaStateInfo_free (msinfo);
4561 DPRINTF (("Adding meta state: %s", mname));
4562 metaStateTable_insert (gc.stateTable, mname, msinfo);
4566 valueTable context_createValueTable (sRef s, stateInfo sinfo)
4568 if (metaStateTable_size (gc.stateTable) > 0)
4570 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4571 /*@i32 should use smaller value... */
4572 DPRINTF (("Value table for: %s", sRef_unparse (s)));
4574 metaStateTable_elements (gc.stateTable, msname, msi)
4576 mtContextNode context = metaStateInfo_getContext (msi);
4578 if (mtContextNode_matchesRefStrict (context, s))
4580 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4581 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4585 cstring_copy (metaStateInfo_getName (msi)),
4586 stateValue_createImplicit (metaStateInfo_getDefaultValue (msi, s),
4587 stateInfo_copy (sinfo)));
4591 DPRINTF (("No match: %s", metaStateInfo_unparse (msi)));
4594 end_metaStateTable_elements ;
4596 stateInfo_free (sinfo);
4597 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4602 stateInfo_free (sinfo);
4603 return valueTable_undefined;
4607 valueTable context_createGlobalMarkerValueTable (stateInfo sinfo)
4609 if (metaStateTable_size (gc.stateTable) > 0)
4611 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4612 /*@i32 should use smaller value... */
4614 metaStateTable_elements (gc.stateTable, msname, msi)
4616 /*@i23 only add global...*/
4617 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4618 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4620 valueTable_insert (res,
4621 cstring_copy (metaStateInfo_getName (msi)),
4622 stateValue_create (metaStateInfo_getDefaultGlobalValue (msi),
4623 stateInfo_copy (sinfo)));
4625 end_metaStateTable_elements ;
4627 stateInfo_free (sinfo);
4628 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4633 stateInfo_free (sinfo);
4634 return valueTable_undefined;