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,
981 FLG_PARAMUNUSED, FLG_VARUNUSED, FLG_FUNCUNUSED,
983 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED, FLG_FIELDUNUSED,
984 FLG_PTRNUMCOMPARE, FLG_BOOLCOMPARE, FLG_MUTREP,
985 FLG_NOEFFECT, FLG_IMPTYPE,
986 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
987 FLG_SPECUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB, FLG_MISPLACEDSHAREQUAL,
990 FLG_MACROPARAMS, FLG_MACROASSIGN, FLG_SEFPARAMS,
991 FLG_MACROSTMT, FLG_MACROPARENS,
994 FLG_MACROREDEF, FLG_INFLOOPS, FLG_UNREACHABLE,
995 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1000 /* memchecks flags */
1002 FLG_NULLSTATE, FLG_NULLASSIGN,
1003 FLG_NULLPASS, FLG_NULLRET,
1005 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1008 /* memtrans flags */
1027 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1028 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1029 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1032 FLG_STATETRANSFER, FLG_STATEMERGE,
1033 FLG_EVALORDER, FLG_SHADOW, FLG_READONLYSTRINGS,
1035 FLG_IMPCHECKEDSPECGLOBALS,
1036 FLG_MODGLOBS, FLG_WARNLINTCOMMENTS,
1037 FLG_IFEMPTY, FLG_REALCOMPARE,
1038 FLG_BOOLOPS, FLG_PTRNEGATE,
1040 FLG_BUFFEROVERFLOWHIGH,
1047 else if (cstring_equalLit (s, "weak"))
1049 flagcode modeflags[] =
1051 FLG_BOOLINT, FLG_CHARINT, FLG_FLOATDOUBLE,
1052 FLG_ENUMINT, FLG_RELAXQUALS, FLG_FORWARDDECL,
1053 FLG_CHARINDEX, FLG_ABSTVOIDP, FLG_USEALLGLOBS,
1054 FLG_CHARUNSIGNEDCHAR,
1056 FLG_VARUNUSED, FLG_FUNCUNUSED,
1058 FLG_CHECKSTRICTGLOBALS, FLG_MACROMATCHNAME,
1061 FLG_RETSTACK, FLG_PTRNEGATE,
1062 FLG_STATETRANSFER, FLG_STATEMERGE,
1063 FLG_LONGUNSIGNEDINTEGRAL,
1064 FLG_LONGUNSIGNEDUNSIGNEDINTEGRAL,
1068 FLG_BUFFEROVERFLOWHIGH,
1074 else if (cstring_equalLit (s, "checks"))
1076 flagcode modeflags[] =
1078 FLG_EXPORTLOCAL, FLG_IMPTYPE,
1079 FLG_STATETRANSFER, FLG_STATEMERGE,
1080 FLG_CHECKSTRICTGLOBALIAS,
1081 FLG_CHECKEDGLOBALIAS,
1082 FLG_CHECKMODGLOBALIAS,
1083 FLG_UNCHECKEDGLOBALIAS,
1085 FLG_EXITARG, FLG_PTRNUMCOMPARE,
1086 FLG_BOOLCOMPARE, FLG_MACROUNDEF,
1087 FLG_MUSTMOD, FLG_ALLGLOBALS,
1088 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1089 FLG_USEALLGLOBS, FLG_MUTREP, FLG_RETALIAS,
1090 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1091 FLG_FUNCUNUSED, FLG_GLOBALSIMPMODIFIESNOTHING,
1092 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_VARUNUSED,
1093 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1094 FLG_NOEFFECT, FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1095 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
1096 FLG_SPECUNDEF, FLG_IMPCHECKMODINTERNALS,
1097 FLG_DECLUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB,
1098 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
1105 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1109 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1111 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE,
1112 FLG_EVALORDER, FLG_USEDEF,
1116 /* memchecks flags */
1118 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1119 FLG_NULLPASS, FLG_NULLRET,
1121 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF, FLG_RETSTACK,
1123 /* memtrans flags */
1137 FLG_STATICINITTRANS,
1138 FLG_UNKNOWNINITTRANS,
1141 FLG_ONLYUNQGLOBALTRANS,
1142 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1143 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1144 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1147 FLG_NULLPOINTERARITH,
1148 FLG_SHADOW, FLG_DEPARRAYS,
1149 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1150 FLG_LOOPLOOPBREAK, FLG_SWITCHLOOPBREAK, FLG_MODGLOBS,
1151 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1152 FLG_MACROMATCHNAME, FLG_WARNLINTCOMMENTS,
1153 FLG_INCLUDENEST, FLG_ANSIRESERVED, FLG_CPPNAMES,
1154 FLG_NOPARAMS, FLG_IFEMPTY, FLG_WHILEEMPTY, FLG_REALCOMPARE,
1155 FLG_BOOLOPS, FLG_SHIFTSIGNED,
1156 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1161 else if (cstring_equalLit (s, "strict"))
1163 flagcode modeflags[] =
1165 FLG_CHECKSTRICTGLOBALIAS,
1166 FLG_CHECKEDGLOBALIAS,
1167 FLG_CHECKMODGLOBALIAS,
1168 FLG_UNCHECKEDGLOBALIAS,
1172 FLG_STATETRANSFER, FLG_STATEMERGE,
1173 FLG_MACROUNDEF, FLG_MUTREP, FLG_MUSTMOD,
1174 FLG_ALLGLOBALS, FLG_IMPTYPE,
1175 FLG_MODNOMODS, FLG_MODGLOBSUNSPEC, FLG_MODSTRICTGLOBSUNSPEC,
1176 FLG_GLOBUNSPEC, FLG_SIZEOFTYPE,
1177 FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1178 FLG_NOPARAMS, FLG_OLDSTYLE, FLG_EXITARG,
1181 FLG_ONLYUNQGLOBALTRANS,
1182 FLG_GLOBALSIMPMODIFIESNOTHING,
1183 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1184 FLG_INTERNALGLOBS, FLG_INTERNALGLOBSNOGLOBS,
1185 FLG_USEALLGLOBS, FLG_RETALIAS,
1186 FLG_MODGLOBS, FLG_MODGLOBSUNSPEC, FLG_MODGLOBSUNCHECKED,
1187 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1188 FLG_NOEFFECTUNCON, FLG_EVALORDERUNCON,
1190 FLG_EXPORTITER, FLG_EXPORTCONST,
1191 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_TOPUNUSED,
1192 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1194 FLG_NULLPOINTERARITH, FLG_POINTERARITH,
1196 FLG_BOOLCOMPARE, FLG_NOEFFECT,
1197 FLG_RETVALINT, FLG_RETVALBOOL, FLG_RETVALOTHER,
1198 FLG_ANSIRESERVED, FLG_ANSIRESERVEDLOCAL, FLG_CPPNAMES,
1199 FLG_RETVALBOOL, FLG_RETVALINT, FLG_SPECUNDEF,
1200 FLG_DECLUNDEF, FLG_STRICTOPS, FLG_INCONDEFS,
1201 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
1202 FLG_INCONDEFSLIB, FLG_MATCHFIELDS, FLG_EXPORTMACRO, FLG_EXPORTVAR,
1203 FLG_EXPORTFCN, FLG_EXPORTTYPE, FLG_EXPORTLOCAL, FLG_MACROPARAMS,
1205 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1208 FLG_MACROREDEF, FLG_MACROEMPTY,
1209 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1211 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1213 FLG_MODUNCON, FLG_MODUNCONNOMODS, FLG_MODINTERNALSTRICT,
1214 FLG_MODOBSERVERUNCON,
1219 /* memchecks flags */
1220 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1221 FLG_NULLPASS, FLG_NULLRET,
1223 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1225 /* memtrans flags */
1241 FLG_STATICINITTRANS,
1242 FLG_UNKNOWNINITTRANS,
1244 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1245 FLG_MUSTFREE, FLG_MUSTDEFINE, FLG_GLOBSTATE,
1246 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1250 FLG_DECLPARAMNAME, FLG_DECLPARAMMATCH,
1252 FLG_SHADOW, FLG_DEPARRAYS,
1253 FLG_STRICTDESTROY, FLG_STRICTUSERELEASED, FLG_STRICTBRANCHSTATE,
1254 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1255 FLG_LOOPLOOPBREAK, FLG_LOOPSWITCHBREAK, FLG_SWITCHLOOPBREAK,
1256 FLG_SWITCHSWITCHBREAK, FLG_LOOPLOOPCONTINUE,
1257 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1258 FLG_ALLGLOBALS, FLG_IMPCHECKEDSTRICTGLOBALS,
1259 FLG_IMPCHECKEDSTRICTSTATICS,
1260 FLG_IMPCHECKEDSTRICTSPECGLOBALS,
1261 FLG_IMPCHECKMODINTERNALS,
1262 FLG_WARNMISSINGGLOBALS, FLG_WARNMISSINGGLOBALSNOGLOBS,
1263 FLG_WARNLINTCOMMENTS, FLG_ANSIRESERVEDLOCAL,
1264 FLG_INCLUDENEST, FLG_STRINGLITERALLEN,
1265 FLG_NUMSTRUCTFIELDS, FLG_NUMENUMMEMBERS,
1266 FLG_CONTROLNESTDEPTH,
1267 FLG_FORBLOCK, FLG_WHILEBLOCK,
1268 FLG_FOREMPTY, FLG_WHILEEMPTY,
1269 FLG_IFEMPTY, FLG_IFBLOCK,
1271 FLG_REALCOMPARE, FLG_BOOLOPS,
1272 FLG_SYSTEMDIRERRORS, FLG_UNUSEDSPECIAL,
1274 FLG_SHIFTSIGNED, FLG_BITWISEOPS,
1275 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1283 llcontbug (message ("context_setMode: bad mode: %s", s));
1288 context_isSpecialFile (cstring fname)
1290 cstring ext = fileLib_getExtension (fname);
1292 return (cstring_equalLit (ext, ".y")
1293 || cstring_equalLit (ext, ".l")
1294 || cstring_equalLit (fname, "lex.yy.c"));
1298 context_isSystemDir (cstring dir)
1300 cstring sysDirs = context_exposeString (FLG_SYSTEMDIRS);
1301 char *thisdir = cstring_toCharsSafe (sysDirs);
1302 char *nextdir = strchr (thisdir, PATH_SEPARATOR);
1304 if (nextdir != NULL)
1310 while (thisdir != NULL)
1312 DPRINTF (("Test: %s / %s", dir, thisdir));
1314 if (cstring_equalCanonicalPrefix (dir, thisdir))
1316 if (nextdir != NULL)
1318 *(nextdir - 1) = PATH_SEPARATOR;
1324 if (nextdir != NULL)
1326 *(nextdir - 1) = PATH_SEPARATOR;
1329 if (nextdir != NULL)
1332 nextdir = strchr (thisdir, PATH_SEPARATOR);
1334 if (nextdir != NULL)
1346 DPRINTF (("Returns FALSE"));
1351 context_addFileAccessType (typeId t)
1355 if (context_inFunctionLike ())
1357 gc.acct = typeIdSet_insert (gc.acct, t);
1360 gc.facct = typeIdSet_insert (gc.facct, t);
1362 base = fileloc_getBase (g_currentloc);
1363 insertModuleAccess (base, t);
1364 DPRINTF (("Add file access: %s / %s", typeIdSet_unparse (gc.facct),
1365 typeIdSet_unparse (gc.acct)));
1369 context_removeFileAccessType (typeId t)
1371 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
1372 || gc.kind == CX_UNKNOWNMACRO)
1374 gc.acct = typeIdSet_removeFresh (gc.acct, t);
1377 gc.facct = typeIdSet_removeFresh (gc.facct, t);
1378 gc.nacct = typeIdSet_insert (gc.nacct, t);
1381 void context_enterFunctionHeader (void)
1383 if (context_getFlag (FLG_GRAMMAR))
1385 lldiagmsg (message ("Enter function header: %q", context_unparse ()));
1388 if (gc.kind != CX_GLOBAL)
1390 llparseerror (cstring_makeLiteral
1391 ("Likely parse error. Function header outside global context."));
1395 llassert (gc.kind == CX_GLOBAL);
1396 DPRINTF (("Enter function header!"));
1397 gc.inFunctionHeader = TRUE;
1401 void context_exitFunctionHeader (void)
1403 if (context_getFlag (FLG_GRAMMAR))
1405 lldiagmsg (message ("Exit function header: %q", context_unparse ()));
1408 DPRINTF (("Exit function header!"));
1409 gc.inFunctionHeader = FALSE;
1412 bool context_inFunctionHeader (void)
1414 return (gc.inFunctionHeader);
1417 void context_enterFunctionDeclaration (uentry e)
1419 if (context_getFlag (FLG_GRAMMAR))
1421 lldiagmsg (message ("Enter function declaration: %q", context_unparse ()));
1424 DPRINTF (("Enter function decl"));
1425 llassert (gc.savekind == CX_ERROR);
1426 gc.savekind = gc.kind;
1427 gc.savecont = gc.cont;
1428 gc.kind = CX_FCNDECLARATION;
1432 void context_exitFunctionDeclaration (void)
1434 if (context_getFlag (FLG_GRAMMAR))
1436 lldiagmsg (message ("Exit function declaration: %q", context_unparse ()));
1439 DPRINTF (("Exit function decl"));
1440 llassert (gc.savekind != CX_ERROR);
1441 llassert (gc.kind == CX_FCNDECLARATION);
1442 gc.kind = gc.savekind;
1443 gc.cont = gc.savecont;
1445 gc.savekind = CX_ERROR;
1447 if (context_getFlag (FLG_GRAMMAR))
1449 lldiagmsg (message ("After exit function declaration: %q", context_unparse ()));
1453 bool context_inFunctionDeclaration (void)
1455 return (gc.kind == CX_FCNDECLARATION);
1460 context_enterMacro (/*@observer@*/ uentry e)
1462 context_enterFunction (e);
1463 gc.kind = CX_MACROFCN;
1467 context_enterUnknownMacro (/*@dependent@*/ uentry e)
1469 llassert (uentry_isFunction (e));
1470 context_enterFunction (e);
1471 gc.kind = CX_UNKNOWNMACRO;
1474 void context_enterAndClause (exprNode e)
1477 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1478 pushClause (ANDCLAUSE);
1481 void context_enterOrClause (exprNode e)
1483 usymtab_trueBranch (guardSet_invert (exprNode_getGuards (e)));
1484 pushClause (ORCLAUSE);
1487 bool context_inDeepLoop (void)
1489 bool inLoop = FALSE;
1491 clauseStack_elements (gc.clauses, el)
1493 if (clause_isLoop (el))
1502 } end_clauseStack_elements;
1507 bool context_inDeepSwitch (void)
1509 bool inLoop = FALSE;
1511 clauseStack_elements (gc.clauses, el)
1513 if (clause_isSwitch (el))
1522 } end_clauseStack_elements;
1527 bool context_inDeepLoopSwitch (void)
1529 bool inLoop = FALSE;
1531 clauseStack_elements (gc.clauses, el)
1533 if (clause_isBreakable (el))
1542 } end_clauseStack_elements;
1547 clause context_breakClause (void)
1549 clauseStack_elements (gc.clauses, el)
1551 if (clause_isSwitch (el))
1555 else if (clause_isLoop (el))
1563 } end_clauseStack_elements;
1568 clause context_nextBreakClause (void)
1570 bool hasOne = FALSE;
1572 clauseStack_elements (gc.clauses, el)
1574 if (clause_isBreakable (el))
1585 } end_clauseStack_elements;
1590 bool context_inConditional (void)
1592 clauseStack_elements (gc.clauses, el)
1595 ** Should also include TRUECLAUSE and FALSECLAUSE, but need
1596 ** to distinguish if from ? for this
1599 if (clause_isBreakable (el) && (el != DOWHILECLAUSE))
1603 } end_clauseStack_elements;
1608 void context_exitAndClause (exprNode pred, exprNode tbranch)
1610 context_setJustPopped ();
1612 llassert (gc.inclause == ANDCLAUSE);
1614 usymtab_popAndBranch (pred, tbranch);
1615 clauseStack_pop (gc.clauses);
1616 gc.inclause = topClause (gc.clauses);
1619 void context_exitOrClause (exprNode pred, exprNode tbranch)
1621 context_setJustPopped ();
1623 llassert (gc.inclause == ORCLAUSE);
1625 usymtab_popOrBranch (pred, tbranch);
1626 clauseStack_pop (gc.clauses);
1627 gc.inclause = topClause (gc.clauses);
1630 static void context_enterCondClauseAux (clause cl)
1636 static void context_enterTrueAux (exprNode e, clause cl)
1639 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1643 void context_enterIterClause (void)
1645 context_enterTrueAux (exprNode_undefined, ITERCLAUSE);
1648 void context_enterDoWhileClause (void)
1650 pushClause (DOWHILECLAUSE);
1653 void context_enterWhileClause (exprNode e)
1655 context_enterTrueAux (e, WHILECLAUSE);
1658 void context_enterForClause (exprNode e)
1660 context_enterTrueAux (e, FORCLAUSE);
1663 void context_enterTrueClause (exprNode e)
1665 context_enterTrueAux (e, TRUECLAUSE);
1668 void context_enterSwitch (exprNode e)
1671 usymtab_switchBranch (e);
1672 context_enterCondClauseAux (SWITCHCLAUSE);
1675 void context_exitSwitch (exprNode e, bool allpaths)
1677 usymtab_exitSwitch (e, allpaths);
1679 while (clause_isCase (clauseStack_top (gc.clauses)))
1681 clauseStack_pop (gc.clauses);
1684 context_exitClauseSimp ();
1687 void context_enterCaseClause (exprNode e)
1689 bool branch = FALSE;
1691 DPRINTF (("Enter case clause!"));
1693 branch = usymtab_newCase (exprNode_undefined, e);
1697 context_enterCondClauseAux (CASECLAUSE);
1701 static void context_enterFalseClauseAux (exprNode e, clause cl)
1704 usymtab_altBranch (guardSet_invert (exprNode_getGuards (e)));
1706 clauseStack_switchTop (gc.clauses, cl);
1709 void context_enterFalseClause (exprNode e)
1712 context_enterFalseClauseAux (e, FALSECLAUSE);
1716 context_enterConstantMacro (/*@exposed@*/ /*@dependent@*/ uentry e)
1718 gc.kind = CX_MACROCONST;
1720 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1722 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1726 usymtab_enterScope ();
1727 sRef_enterFunctionScope ();
1729 gc.globs = globSet_undefined;
1730 globSet_clear (gc.globs_used);
1731 gc.mods = sRefSet_undefined;
1734 uentry context_getHeader (void)
1736 if (!(context_inFunctionLike () || (gc.kind == CX_MACROCONST)))
1738 llfatalbug (message ("context_getHeader: bad call: %q",
1739 context_unparse ()));
1742 return (gc.cont.fcn);
1746 context_setFunctionDefined (fileloc loc)
1750 case CX_UNKNOWNMACRO:
1753 uentry_setFunctionDefined (gc.cont.fcn, loc);
1756 /* (not a bug because of parse errors) */
1762 context_enterFunction (/*@exposed@*/ uentry e)
1764 gc.kind = CX_FUNCTION;
1767 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1769 if (uentry_hasAccessType (e))
1771 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1779 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1780 typeIdSet_unparse (gc.acct)));
1782 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1784 gc.globs = uentry_getGlobs (e);
1785 globSet_clear (gc.globs_used);
1786 gc.mods = uentry_getMods (e);
1788 usymtab_enterFunctionScope (e);
1789 sRef_enterFunctionScope ();
1793 context_enterOldStyleScope (void)
1795 gc.kind = CX_OLDSTYLESCOPE;
1796 DPRINTF (("Enter old style scope!"));
1797 usymtab_enterFunctionScope (uentry_undefined);
1801 context_completeOldStyleFunction (uentry e)
1803 llassert (gc.kind == CX_OLDSTYLESCOPE);
1805 gc.kind = CX_FUNCTION;
1808 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1810 if (uentry_hasAccessType (e))
1812 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1820 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1821 typeIdSet_unparse (gc.acct)));
1823 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1825 if (!globSet_isEmpty (uentry_getGlobs (e)))
1827 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1828 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1831 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1833 gc.globs = uentry_getGlobs (e);
1834 globSet_clear (gc.globs_used);
1836 gc.mods = uentry_getMods (e);
1838 if (!sRefSet_isEmpty (gc.mods))
1840 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1841 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1844 sRef_enterFunctionScope ();
1847 static bool context_checkStrictGlobals (void)
1849 return (context_getFlag (FLG_CHECKSTRICTGLOBALS));
1852 static bool context_hasGlobs (void)
1854 if (context_inFunctionLike ())
1856 return (uentry_hasGlobs (gc.cont.fcn));
1864 static bool context_checkCheckedGlobals (void)
1866 return (context_getFlag (FLG_GLOBALS)
1867 && (context_getFlag (FLG_GLOBUNSPEC)
1868 || context_hasGlobs ()));
1871 static bool context_checkUnknownGlobals (void)
1873 /* should be uentry_hasGlobs ? */
1875 return (context_getFlag (FLG_ALLGLOBALS)
1876 && (context_getFlag (FLG_GLOBUNSPEC)
1877 || context_hasGlobs ()));
1880 static bool context_checkUncheckedGlobals (void)
1886 context_checkExport (uentry e)
1888 if (!gc.anyExports) return FALSE;
1890 if (uentry_isFunction (e)
1891 || (uentry_isVariable (e) && ctype_isFunction (uentry_getType (e))))
1893 return context_maybeSet (FLG_EXPORTFCN);
1895 else if (uentry_isExpandedMacro (e))
1897 return context_maybeSet (FLG_EXPORTMACRO);
1899 else if (uentry_isVariable (e))
1901 return context_maybeSet (FLG_EXPORTVAR);
1903 else if (uentry_isEitherConstant (e))
1905 return context_maybeSet (FLG_EXPORTCONST);
1907 else if (uentry_isIter (e) || uentry_isEndIter (e))
1909 return context_maybeSet (FLG_EXPORTITER);
1911 else if (uentry_isDatatype (e))
1913 return context_maybeSet (FLG_EXPORTTYPE);
1922 context_checkGlobUse (uentry glob)
1925 if (uentry_isCheckedStrict (glob))
1927 return context_checkStrictGlobals ();
1929 else if (uentry_isChecked (glob))
1931 return context_checkCheckedGlobals ();
1933 else if (uentry_isCheckedUnknown (glob) || uentry_isCheckMod (glob))
1935 return context_checkUnknownGlobals ();
1939 llassert (uentry_isUnchecked (glob));
1941 return context_checkUncheckedGlobals ();
1946 context_checkAliasGlob (uentry glob)
1948 if (uentry_isCheckedStrict (glob))
1950 return gc.flags[FLG_CHECKSTRICTGLOBALIAS];
1952 else if (uentry_isChecked (glob))
1954 return gc.flags[FLG_CHECKEDGLOBALIAS];
1956 else if (uentry_isCheckMod (glob))
1958 return gc.flags[FLG_CHECKMODGLOBALIAS];
1962 llassert (uentry_isUnchecked (glob) || uentry_isCheckedUnknown (glob));
1964 return gc.flags[FLG_UNCHECKEDGLOBALIAS];
1968 bool context_checkInternalUse (void)
1970 if (context_hasGlobs ())
1972 return (gc.flags[FLG_INTERNALGLOBS]);
1976 return (gc.flags[FLG_INTERNALGLOBSNOGLOBS]);
1981 context_checkGlobMod (sRef el)
1983 uentry ue = sRef_getUentry (el);
1985 /* no: llassert (sRef_isFileOrGlobalScope (el)); also check local statics */
1987 if (uentry_isCheckedModify (ue)
1988 || (!uentry_isUnchecked (ue) && (gc.flags[FLG_ALLGLOBALS])))
1990 if (context_hasMods ())
1992 return (gc.flags[FLG_MODGLOBS]);
1996 if (uentry_isCheckedStrict (ue))
1998 return (gc.flags[FLG_MODGLOBSUNSPEC]);
2002 return (gc.flags[FLG_MODSTRICTGLOBSUNSPEC]);
2008 if (context_hasMods ())
2010 return (gc.flags[FLG_MODGLOBSUNCHECKED]);
2020 context_usedGlobal (/*@exposed@*/ sRef el)
2022 if (!globSet_member (gc.globs_used, el))
2025 ** The first time a global is used in a function, we need
2026 ** to clear the derived sRefs, since they were set for the
2027 ** previous function.
2030 sRef_clearDerived (el);
2031 gc.globs_used = globSet_insert (gc.globs_used, el);
2035 /*@observer@*/ sRefSet
2036 context_modList (void)
2042 context_globAccess (sRef s)
2044 llassert (sRef_isFileOrGlobalScope (s) || sRef_isKindSpecial (s));
2045 return (globSet_member (gc.globs, s));
2049 context_hasAccess (typeId t)
2051 if (context_inFunctionLike ())
2053 DPRINTF (("Access %d / %s",
2054 t, typeIdSet_unparse (gc.acct)));
2055 return (typeIdSet_member (gc.acct, t));
2059 return (context_hasFileAccess (t));
2064 context_hasFileAccess (typeId t)
2066 return (typeIdSet_member (gc.facct, t));
2070 context_unparseAccess (void)
2072 return (message ("%q / %q", typeIdSet_unparse (gc.acct),
2073 typeIdSet_unparse (gc.facct)));
2077 context_unparseClauses (void)
2079 return (clauseStack_unparse (gc.clauses));
2083 context_couldHaveAccess (typeId t)
2085 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO)
2087 return (typeIdSet_member (gc.acct, t));
2091 return (typeIdSet_member (gc.facct, t));
2096 context_getRetType (void)
2098 ctype f = ctype_undefined;
2100 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
2102 f = uentry_getType (gc.cont.fcn);
2104 else if (gc.kind == CX_UNKNOWNMACRO)
2106 return ctype_unknown;
2110 llcontbuglit ("context_getRetType: not in a function context");
2111 return ctype_unknown;
2114 if (!ctype_isFunction (f))
2116 if (ctype_isKnown (f))
2118 llbuglit ("context_getRetType: not a function");
2121 return ctype_unknown;
2123 return (ctype_getReturnType (f));
2127 context_hasMods (void)
2129 if (context_inFunctionLike ())
2131 return (uentry_hasMods (gc.cont.fcn));
2140 context_exitAllClauses (void)
2142 while (!clauseStack_isEmpty (gc.clauses))
2144 clause el = clauseStack_top (gc.clauses);
2147 if (clause_isNone (el))
2149 usymtab_quietExitScope (g_currentloc);
2150 clauseStack_pop (gc.clauses);
2154 context_exitClausePlain ();
2158 clauseStack_clear (gc.clauses);
2159 gc.inclause = NOCLAUSE;
2163 context_exitAllClausesQuiet (void)
2165 while (!clauseStack_isEmpty (gc.clauses))
2167 clause el = clauseStack_top (gc.clauses);
2170 usymtab_quietExitScope (g_currentloc);
2171 clauseStack_pop (gc.clauses);
2174 clauseStack_clear (gc.clauses);
2175 gc.inclause = NOCLAUSE;
2179 void context_exitClauseSimp (void)
2182 context_setJustPopped ();
2183 clauseStack_pop (gc.clauses);
2184 gc.inclause = topClause (gc.clauses);
2188 void context_exitCaseClause (void)
2190 context_setJustPopped ();
2191 usymtab_popCaseBranch ();
2192 clauseStack_pop (gc.clauses);
2193 gc.inclause = topClause (gc.clauses);
2197 void context_exitClauseAux (exprNode pred, exprNode tbranch)
2199 context_setJustPopped ();
2200 /*@i32 was makeAlt */
2201 usymtab_popTrueBranch (pred, tbranch, gc.inclause);
2202 clauseStack_pop (gc.clauses);
2203 gc.inclause = topClause (gc.clauses);
2206 void context_exitTrueClause (exprNode pred, exprNode tbranch)
2208 DPRINTF (("Exit true clause: %s", exprNode_unparse (tbranch)));
2210 if (gc.inclause != TRUECLAUSE)
2212 llparseerror (cstring_makeLiteral
2213 ("Likely parse error. Conditional clauses are inconsistent."));
2217 context_setJustPopped ();
2218 usymtab_popTrueBranch (pred, tbranch, TRUECLAUSE);
2219 clauseStack_pop (gc.clauses);
2220 gc.inclause = topClause (gc.clauses);
2223 void context_exitIterClause (exprNode body)
2225 llassert (gc.inclause == ITERCLAUSE);
2227 context_setJustPopped ();
2229 if (context_getFlag (FLG_LOOPEXEC))
2231 usymtab_popTrueExecBranch (exprNode_undefined, body, ITERCLAUSE);
2235 usymtab_popTrueBranch (exprNode_undefined, body, ITERCLAUSE);
2238 clauseStack_pop (gc.clauses);
2239 gc.inclause = topClause (gc.clauses);
2242 static void context_popCase (void) {
2244 ** If we are exiting an outer clause, sometimes still in a switch case.
2258 DPRINTF (("Popping case clause: %s",
2259 clauseStack_unparse (gc.clauses)));
2261 if (gc.inclause == CASECLAUSE) {
2262 context_exitCaseClause ();
2266 void context_exitWhileClause (exprNode pred, exprNode body)
2268 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2272 if (gc.inclause != WHILECLAUSE) {
2273 DPRINTF (("Clause: %s / %s", clause_unparse (gc.inclause),
2274 clauseStack_unparse (gc.clauses)));
2277 llassert (gc.inclause == WHILECLAUSE);
2279 context_setJustPopped ();
2283 ** predicate must be false after while loop (unless there are breaks)
2286 if (context_getFlag (FLG_LOOPEXEC))
2288 usymtab_popTrueExecBranch (pred, body, WHILECLAUSE);
2292 usymtab_popTrueBranch (pred, body, WHILECLAUSE);
2296 usymtab_addGuards (invGuards);
2297 guardSet_free (invGuards);
2299 clauseStack_pop (gc.clauses);
2300 gc.inclause = topClause (gc.clauses);
2303 void context_exitDoWhileClause (exprNode pred)
2305 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2307 if (gc.inclause == CASECLAUSE) {
2308 /* handle Duff's device */
2309 clauseStack_pop (gc.clauses);
2310 gc.inclause = topClause (gc.clauses);
2313 llassert (gc.inclause == DOWHILECLAUSE);
2315 context_setJustPopped ();
2318 usymtab_addGuards (invGuards);
2319 guardSet_free (invGuards);
2321 clauseStack_pop (gc.clauses);
2322 gc.inclause = topClause (gc.clauses);
2325 void context_exitForClause (exprNode forPred, exprNode body)
2327 guardSet invGuards = guardSet_invert (exprNode_getForGuards (forPred));
2329 llassert (gc.inclause == FORCLAUSE);
2330 context_setJustPopped ();
2333 ** predicate must be false after while loop (unless there are breaks)
2336 if (context_getFlag (FLG_LOOPEXEC))
2338 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
2342 usymtab_popTrueBranch (forPred, body, FORCLAUSE);
2345 usymtab_addGuards (invGuards);
2346 guardSet_free (invGuards);
2347 clauseStack_pop (gc.clauses);
2348 gc.inclause = topClause (gc.clauses);
2351 static void context_exitClausePlain (void)
2353 llassert (gc.inclause != NOCLAUSE);
2355 if (gc.inclause == FALSECLAUSE)
2357 context_exitClause (exprNode_undefined, exprNode_undefined, exprNode_undefined);
2361 context_exitClauseAux (exprNode_undefined, exprNode_undefined);
2365 void context_exitClause (exprNode pred, exprNode tbranch, exprNode fbranch)
2367 context_setJustPopped ();
2369 if (gc.inclause == FALSECLAUSE)
2371 usymtab_popBranches (pred, tbranch, fbranch, FALSE, FALSECLAUSE);
2373 llassert (clauseStack_top (gc.clauses) == FALSECLAUSE);
2375 clauseStack_pop (gc.clauses);
2376 gc.inclause = topClause (gc.clauses);
2380 context_exitTrueClause (pred, tbranch);
2385 context_returnFunction (void)
2387 usymtab_checkFinalScope (TRUE);
2391 context_exitFunction (void)
2393 DPRINTF (("Exit function: %s", context_unparse ()));
2395 if (!context_inFunction () && !context_inMacroConstant ()
2396 && !context_inUnknownMacro ()
2397 && !context_inIterDef () && !context_inIterEnd ())
2400 ** not a bug because of parse errors
2407 if (context_inMacro () && usymtab_inFunctionScope ())
2409 usymtab_exitScope (exprNode_undefined);
2412 if (uentry_hasGlobs (gc.cont.fcn))
2414 exprChecks_checkUsedGlobs (gc.globs, gc.globs_used);
2418 if (uentry_hasMods (gc.cont.fcn))
2420 if (context_getFlag (FLG_MUSTMOD))
2422 exprNode_checkAllMods (gc.mods, gc.cont.fcn);
2426 DPRINTF (("Exit function: %s", uentry_unparse (gc.cont.fcn)));
2429 ** clear file static modifies
2432 /* do this first to get unused error messages */
2434 usymtab_exitScope (exprNode_undefined);
2435 sRef_exitFunctionScope ();
2437 gc.showfunction = FALSE;
2438 gc.kind = CX_GLOBAL;
2439 gc.cont.glob = TRUE;
2441 gc.globs = globSet_new ();
2442 globSet_clear (gc.globs_used);
2443 gc.mods = sRefSet_new ();
2446 llassert (clauseStack_isEmpty (gc.clauses));
2447 llassert (gc.inclause == NOCLAUSE);
2448 DPRINTF (("After exit function: %s", context_unparse ()));
2452 context_quietExitFunction (void)
2454 while (gc.kind == CX_INNER)
2456 context_exitInnerPlain ();
2459 if (!context_inFunction () && !context_inMacroConstant () && !context_inUnknownMacro ()
2460 && !context_inIterDef () && !context_inIterEnd ())
2465 usymtab_quietExitScope (g_currentloc);
2467 gc.showfunction = FALSE;
2468 gc.kind = CX_GLOBAL;
2469 gc.cont.glob = TRUE;
2471 gc.globs = globSet_new ();
2472 globSet_clear (gc.globs_used);
2473 gc.mods = sRefSet_new ();
2475 sRef_exitFunctionScope ();
2479 /*@observer@*/ uentryList
2480 context_getParams (void)
2482 if (context_inFunctionLike ())
2484 return (uentry_getParams (gc.cont.fcn));
2488 llcontbug (message ("context_getParams: not in function: %q", context_unparse ()));
2489 return uentryList_undefined;
2493 /*@observer@*/ globSet
2494 context_getUsedGlobs (void)
2496 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2497 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2499 return (gc.globs_used);
2503 context_moduleName ()
2505 return (fileloc_getBase (g_currentloc));
2508 /*@observer@*/ globSet
2509 context_getGlobs (void)
2511 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2512 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2518 context_addBoolAccess (void)
2520 cstring bname = context_getString (FLG_BOOLTYPE);
2521 typeIdSet boolt = typeIdSet_single (usymtab_getTypeId (bname));
2523 addModuleAccess (cstring_copy (bname), boolt);
2525 /* for sys/types (perhaps, this is bogus!) */
2526 addModuleAccess (cstring_makeLiteral ("types"), boolt);
2531 context_canAccessBool (void)
2538 static typeId boolType = typeId_invalid;
2540 if (typeId_isInvalid (boolType))
2542 boolType = usymtab_getTypeId (context_getBoolName ());
2545 if (typeId_isInvalid (boolType)) {
2548 return (typeIdSet_member (gc.acct, boolType));
2553 /* evs 2000-07-25: old version - replaced */
2556 context_boolImplementationType () {
2557 /* For now, this is bogus! */
2562 context_canAccessBool (void)
2564 static typeId boolType = typeId_invalid;
2566 if (typeId_isInvalid (boolType))
2568 boolType = usymtab_getTypeId (context_getBoolName ());
2571 if (!typeId_isInvalid (boolType))
2573 return context_hasAccess (boolType);
2584 context_setMessageAnnote (/*@only@*/ cstring s)
2586 llassert (cstring_isUndefined (gc.msgAnnote));
2591 context_hasMessageAnnote (void)
2593 return (cstring_isDefined (gc.msgAnnote));
2597 context_clearMessageAnnote (void)
2599 if (cstring_isDefined (gc.msgAnnote))
2601 cstring_free (gc.msgAnnote);
2602 gc.msgAnnote = cstring_undefined;
2607 context_getMessageAnnote (void)
2609 cstring st = gc.msgAnnote;
2611 gc.msgAnnote = cstring_undefined;
2616 context_setAliasAnnote (/*@observer@*/ sRef s, /*@observer@*/ sRef t)
2618 llassert (sRef_isInvalid (gc.aliasAnnote));
2619 llassert (!sRef_sameName (s, t));
2621 gc.aliasAnnoteAls = t;
2625 context_hasAliasAnnote (void)
2627 return (sRef_isValid (gc.aliasAnnote));
2631 context_clearAliasAnnote (void)
2633 gc.aliasAnnote = sRef_undefined;
2637 context_getAliasAnnote (void)
2639 sRef ret = gc.aliasAnnote;
2640 sRef als = gc.aliasAnnoteAls;
2642 llassert (sRef_isValid (ret) && sRef_isValid (als));
2644 gc.aliasAnnote = sRef_undefined;
2645 return (message ("%q aliases %q", sRef_unparse (als), sRef_unparse (ret)));
2649 context_recordFileModifies (sRefSet mods)
2651 gc.modrecs = sRefSetList_add (gc.modrecs, mods);
2655 context_recordFileGlobals (globSet mods)
2657 DPRINTF (("Recording file globals: %s", globSet_unparse (mods)));
2658 /*@access globSet@*/ context_recordFileModifies (mods); /*@noaccess globSet@*/
2662 context_setCommentMarkerChar (char c)
2664 llassert (c != '\0');
2666 context_setValue (FLG_COMMENTCHAR, (int) c);
2670 context_getCommentMarkerChar (void)
2672 return ((char) context_getValue (FLG_COMMENTCHAR));
2676 context_setValue (flagcode flag, int val)
2678 int index = flagcode_valueIndex (flag);
2680 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2688 llerror_flagWarning (message ("Value for %s must be a positive "
2689 "number (given %d)",
2690 flagcode_unparse (flag), val));
2693 if (flag == FLG_LINELEN && val < MINLINELEN)
2695 llerror_flagWarning (message ("Value for %s must be at least %d (given %d)",
2696 flagcode_unparse (flag),
2702 case FLG_INCLUDENEST:
2703 case FLG_CONTROLNESTDEPTH:
2704 case FLG_STRINGLITERALLEN:
2705 case FLG_NUMSTRUCTFIELDS:
2706 case FLG_NUMENUMMEMBERS:
2707 case FLG_INDENTSPACES:
2711 llerror_flagWarning (message ("Value for %s must be a non-negative "
2712 "number (given %d)",
2713 flagcode_unparse (flag), val));
2722 gc.values[index] = val;
2726 context_setValueAndFlag (flagcode flag, int val)
2728 gc.flags[flag] = TRUE;
2729 context_setValue (flag, val);
2733 context_getValue (flagcode flag)
2735 int index = flagcode_valueIndex (flag);
2737 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2738 return (gc.values[index]);
2742 context_getCounter (flagcode flag)
2744 int index = flagcode_valueIndex (flag);
2746 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2747 return (gc.counters[index]);
2751 context_incCounter (flagcode flag)
2753 int index = flagcode_valueIndex (flag);
2755 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2757 gc.counters[index]++;
2761 context_decCounter (flagcode flag)
2763 int index = flagcode_valueIndex (flag);
2765 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2766 gc.counters[index]--;
2769 bool context_showFunction (void)
2771 return (gc.showfunction);
2775 context_setString (flagcode flag, cstring val)
2777 int index = flagcode_stringIndex (flag);
2779 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2781 if (flag == FLG_SYSTEMDIRS)
2783 llassert (cstring_isDefined (val));
2785 if (cstring_firstChar (val) == '\"')
2788 cstring tval = cstring_copy (cstring_suffix (val, 1));
2790 if (cstring_lastChar (tval) != '\"')
2792 int n = cstring_length (tval) - 1;
2794 while (isspace ((int) cstring_getChar (tval, n)))
2799 if (cstring_getChar (tval, n) != '\"')
2801 llerror_flagWarning (message ("Setting -systemdirs to string with unmatching quotes: %s", val));
2805 cstring otval = tval;
2806 tval = cstring_prefix (tval, n);
2807 cstring_free (otval);
2811 val = cstring_copy (cstring_clip (tval, cstring_length (tval) - 1));
2812 DPRINTF (("val = %s", val));
2813 cstring_free (tval);
2814 cstring_free (oval);
2818 if (flag == FLG_TMPDIR)
2820 llassert (cstring_isDefined (val));
2822 if (cstring_length (val) == 0)
2825 val = message (".%s", cstring_makeLiteralTemp (CONNECTSTR));
2827 else if (cstring_lastChar (val) != CONNECTCHAR)
2829 val = cstring_appendChar (val, CONNECTCHAR);
2837 if (cstring_length (val) >= 1
2838 && cstring_firstChar (val) == '"')
2840 llerror_flagWarning (message
2841 ("setting %s to string beginning with \". You probably "
2842 "don't meant to have the \"'s.",
2843 flagcode_unparse (flag)));
2846 if (flag == FLG_BOOLTYPE)
2851 gc.strings[index] = val;
2854 static /*@exposed@*/ cstring
2855 context_exposeString (flagcode flag)
2857 int index = flagcode_stringIndex (flag);
2859 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2860 return (gc.strings[index]);
2864 context_getString (flagcode flag)
2866 return (context_exposeString (flag));
2870 context_resetErrors (void)
2875 void context_initMod (void)
2876 /*@globals undef gc; @*/
2878 gc.kind = CX_GLOBAL;
2880 gc.savekind = CX_ERROR;
2881 gc.savecont.glob = FALSE;
2883 gc.instandardlib = FALSE;
2886 gc.linesprocessed = 0;
2887 gc.speclinesprocessed = 0;
2888 gc.insuppressregion = FALSE;
2889 gc.macroMissingParams = FALSE;
2890 gc.preprocessing = FALSE;
2891 gc.incommandline = FALSE;
2892 gc.mc = macrocache_create ();
2894 gc.maxmods = DEFAULTMAXMODS;
2895 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
2897 gc.library = FLG_ANSILIB;
2899 gc.locstack = filelocStack_new ();
2900 gc.modrecs = sRefSetList_undefined;
2901 gc.anyExports = FALSE;
2903 gc.ftab = fileTable_create ();
2904 gc.msgLog = messageLog_new ();
2905 gc.inimport = FALSE;
2906 gc.inDerivedFile = FALSE;
2907 gc.inheader = FALSE;
2908 gc.markers = flagMarkerList_new ();
2909 gc.cont.glob = TRUE;
2910 gc.showfunction = FALSE;
2911 gc.msgAnnote = cstring_undefined;
2912 gc.aliasAnnote = sRef_undefined;
2913 gc.aliasAnnoteAls = sRef_undefined;
2914 gc.boolType = ctype_bool;
2915 gc.mods = sRefSet_new ();
2917 gc.saveloc = fileloc_undefined;
2919 gc.inmacrocache = FALSE;
2920 gc.inclause = NOCLAUSE;
2921 gc.clauses = clauseStack_new ();
2922 gc.globs = globSet_new ();
2923 gc.nacct = typeIdSet_emptySet ();
2924 gc.acct = typeIdSet_emptySet ();
2925 gc.facct = typeIdSet_emptySet ();
2926 gc.savedFlags = FALSE;
2927 gc.pushloc = fileloc_undefined;
2928 gc.protectVars = FALSE;
2929 gc.justpopped = FALSE;
2930 gc.isNullGuarded = NO;
2931 gc.globs_used = globSet_undefined;
2935 gc.setGlobally[code] = FALSE;
2936 gc.setLocally[code] = FALSE;
2937 } end_allFlagCodes ;
2941 context_resetAllFlags ();
2942 assertSet (gc.flags); /* Can't use global in defines */
2943 assertSet (gc.saveflags);
2944 assertSet (gc.values);
2945 assertSet (gc.strings);
2947 conext_resetAllCounters ();
2948 assertSet (gc.counters);
2950 context_setMode (DEFAULT_MODE);
2952 gc.stateTable = metaStateTable_create ();
2953 gc.annotTable = annotationTable_create ();
2955 gc.inFunctionHeader = FALSE;
2957 DPRINTF (("Annotations: \n%s",
2958 cstring_toCharsSafe (annotationTable_unparse (gc.annotTable))));
2959 DPRINTF (("State: \n%s",
2960 cstring_toCharsSafe (metaStateTable_unparse (gc.stateTable))));
2965 context_typeofZero (void)
2967 ctype ct = ctype_int;
2969 if (context_getFlag (FLG_ZEROPTR))
2971 ct = ctype_makeConj (ct, ctype_voidPointer);
2974 if (context_getFlag (FLG_ZEROBOOL)) {
2975 ct = ctype_makeConj (ct, ctype_bool);
2982 context_typeofOne (void)
2984 ctype ct = ctype_int;
2986 /* 1 is on longer a bool (was before 2.4)
2987 if (!context_getFlag (FLG_ABSTRACTBOOL))
2989 ct = ctype_makeConj (ct, ctype_bool);
2997 context_unparse (void)
3004 s = message ("LCL File: %q", fileloc_unparse (g_currentloc));
3007 s = message ("LCL Lib File: %q", fileloc_unparse (g_currentloc));
3010 s = message ("Global Context:%q", fileloc_unparse (g_currentloc));
3013 s = message ("Inner Context [%d] : %q",
3015 fileloc_unparse (g_currentloc));
3018 s = message ("Function %q :%q \n\taccess %q\n\tmodifies %q",
3019 uentry_unparse (gc.cont.fcn),
3020 fileloc_unparse (g_currentloc),
3021 typeIdSet_unparse (gc.acct),
3022 sRefSet_unparse (gc.mods));
3025 s = message ("Function Macro %q", uentry_unparse (gc.cont.fcn));
3027 case CX_UNKNOWNMACRO:
3028 s = message ("Forward Specified Macro %q", uentry_unparse (gc.cont.fcn));
3031 s = message ("Constant Macro %q", uentry_unparse (gc.cont.fcn));
3034 s = message ("Iter definition %q", uentry_unparse (gc.cont.fcn));
3037 s = message ("Iter end %q", uentry_unparse (gc.cont.fcn));
3039 case CX_FCNDECLARATION:
3040 s = message ("Function declaration %q", uentry_unparse (gc.cont.fcn));
3043 s = message ("Un-unparseable context: %d", (int) gc.kind);
3047 s = message ("%q\naccess: %q", s, context_unparseAccess ());
3052 context_currentFunctionType (void)
3054 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
3056 return (uentry_getType (gc.cont.fcn));
3058 else if (gc.kind == CX_INNER)
3060 llcontbuglit ("context_currentFunctionType: inner context");
3061 do { context_exitInnerPlain (); } while (gc.kind == CX_INNER);
3062 return (context_currentFunctionType ());
3066 llcontbuglit ("context_currentFunctionType: not in function");
3067 return (ctype_undefined);
3072 context_enterInnerContext (void)
3074 if (context_getFlag (FLG_GRAMMAR))
3076 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3079 if (gc.kind == CX_GLOBAL)
3084 else if (gc.kind == CX_INNER)
3093 usymtab_enterScope ();
3094 pushClause (NOCLAUSE);
3098 context_exitInnerPlain (void) /*@modifies gc;@*/
3100 context_exitInner (exprNode_undefined);
3104 context_exitInner (exprNode exp)
3106 if (context_getFlag (FLG_GRAMMAR))
3108 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3111 llassertprint (gc.inclause == NOCLAUSE || gc.inclause == CASECLAUSE,
3112 ("inclause = %s", clause_nameTaken (gc.inclause)));
3114 clauseStack_removeFirst (gc.clauses, NOCLAUSE);
3115 gc.inclause = topClause (gc.clauses);
3117 if (gc.kind == CX_INNER)
3119 if (--gc.cont.cdepth == 0)
3121 gc.kind = CX_GLOBAL;
3122 gc.cont.glob = TRUE;
3127 if (gc.kind == CX_GLOBAL)
3129 llcontbuglit ("Attempt to exit global context");
3134 usymtab_exitScope (exp);
3139 context_enterStructInnerContext (void)
3141 if (context_getFlag (FLG_GRAMMAR))
3143 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3146 if (gc.kind == CX_GLOBAL)
3151 else if (gc.kind == CX_INNER)
3160 usymtab_enterScope ();
3162 if (context_getFlag (FLG_GRAMMAR))
3164 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3169 context_exitStructInnerContext (void)
3171 if (context_getFlag (FLG_GRAMMAR))
3173 lldiagmsg (message ("Exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3176 if (gc.kind == CX_INNER)
3178 if (gc.cont.cdepth <= 0)
3180 llcontbuglit ("Attempt to exit inner context with no depth");
3181 gc.kind = CX_GLOBAL;
3182 gc.cont.glob = TRUE;
3188 if (gc.cont.cdepth == 0)
3190 gc.kind = CX_GLOBAL;
3191 gc.cont.glob = TRUE;
3197 if (gc.kind == CX_GLOBAL)
3199 llcontbuglit ("Attempt to exit global context");
3204 usymtab_exitScope (exprNode_undefined);
3206 if (context_getFlag (FLG_GRAMMAR))
3208 lldiagmsg (message ("After exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3213 context_exitInnerSafe (void)
3215 if (context_getFlag (FLG_GRAMMAR))
3217 lldiagmsg (message ("Exit inner safe: %q", context_unparse ()));
3220 if (gc.kind == CX_INNER)
3222 if (--gc.cont.cdepth <= 0)
3227 else if (gc.kind == CX_GLOBAL)
3229 llcontbuglit ("Attempt to exit global context");
3234 if (usymtab_inDeepScope ())
3236 usymtab_exitScope (exprNode_undefined);
3242 void setModuleAccess (void)
3244 gc.facct = typeIdSet_emptySet ();
3246 if (fileId_isValid (currentFile ()))
3248 cstring baseName = fileloc_getBase (g_currentloc);
3250 if (context_getFlag (FLG_ACCESSFILE))
3252 if (usymtab_existsType (baseName))
3254 gc.facct = typeIdSet_insert (gc.facct,
3255 usymtab_getTypeId (baseName));
3263 if (context_getFlag (FLG_ACCESSMODULE))
3266 bool hasaccess = FALSE;
3268 for (i = 0; i < gc.nmods; i++)
3270 if (cstring_equal (baseName, gc.moduleaccess[i].file))
3272 gc.facct = typeIdSet_union (gc.facct, gc.moduleaccess[i].daccess);
3281 gc.inheader = fileId_isHeader (currentFile ());
3285 llcontbuglit ("Current file not defined\n");
3286 gc.facct = typeIdSet_emptySet ();
3288 gc.inheader = FALSE;
3291 /* 17 Jan 1995: forgot to clear nacct */
3293 gc.nacct = typeIdSet_emptySet ();
3297 context_enterFileAux (void)
3303 context_enterFile (void)
3305 context_enterFileAux ();
3306 usymtab_enterFile ();
3310 context_enterMacroFile (void)
3312 context_enterFileAux ();
3316 context_inFunction (void)
3318 kcontext ck = gc.kind;
3320 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN) || (ck == CX_INNER));
3324 context_inFunctionLike (void)
3326 return (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
3327 || gc.kind == CX_FCNDECLARATION
3328 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
3332 context_inRealFunction (void)
3334 kcontext ck = gc.kind;
3336 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN));
3340 context_processAllMacros (void)
3342 usymtab_enterFile ();
3344 gc.inmacrocache = TRUE;
3345 macrocache_processUndefinedElements (gc.mc);
3347 usymtab_exitFile ();
3349 gc.inmacrocache = FALSE;
3350 macrocache_finalize ();
3354 ** this happens once at the end of each C file
3356 ** check each Macro that was defined in current file.c or current file.h
3361 context_processMacros (void)
3363 if (fileId_isValid (currentFile ()))
3366 cstring cbase = fileLib_removePathFree (fileLib_removeAnyExtension (fileName (currentFile ())));
3368 gc.inmacrocache = TRUE;
3370 DPRINTF (("Processing macros: %s", cbase));
3371 lastfl = macrocache_processFileElements (gc.mc, cbase);
3372 DPRINTF (("Processing macros: %s", fileloc_unparse (lastfl)));
3374 cstring_free (cbase);
3376 if (fileloc_isDefined (lastfl))
3378 g_currentloc = fileloc_update (g_currentloc, lastfl);
3382 gc.inmacrocache = FALSE;
3387 context_processingMacros (void)
3389 return (gc.inmacrocache);
3393 context_exitCFile (void)
3395 if (gc.kind != CX_GLOBAL)
3398 (cstring_makeLiteral ("File ended outside global scope"));
3401 if (gc.insuppressregion)
3403 /* gack...don't reverse the order of these lines! ;-> */
3404 gc.insuppressregion = FALSE;
3405 llerrorlit (FLG_SYNTAX,
3406 "File ended in ignore errors region, "
3407 "possible missing /*@end*/");
3410 /* fix up parse errors */
3412 while (!usymtab_inFileScope ())
3414 usymtab_quietExitScope (g_currentloc);
3418 ** Clear the file-specific modifies information.
3421 sRefSetList_elements (gc.modrecs, mods)
3423 sRefSet_clearStatics (mods);
3424 } end_sRefSetList_elements ;
3426 sRefSetList_clear (gc.modrecs);
3428 context_processMacros ();
3431 usymtab_exitFile ();
3433 gc.inDerivedFile = FALSE;
3434 filelocStack_clear (gc.locstack);
3436 gc.nacct = typeIdSet_emptySet (); /* empty noaccess */
3438 gc.cont.glob = TRUE;
3442 context_restoreFlagSettings ();
3443 gc.savedFlags = FALSE;
3447 DPRINTF (("After exiting file: "));
3448 usymtab_printAll ();
3453 context_exitMacroCache (void)
3455 if (gc.kind != CX_GLOBAL)
3457 if (context_inMacro ())
3458 /* this is okay, file could end without newline in macro */
3460 DPRINTF (("Still in macro: %s",
3461 context_unparse ()));
3462 context_exitFunction ();
3466 llcontbug (message ("context_exitMacroCache: outside global scope: %q",
3467 context_unparse ()));
3468 gc.kind = CX_GLOBAL;
3473 ** no longer valid here
3474 ** if (gc.insuppressregion)
3476 ** gc.insuppressregion = FALSE;
3477 ** llerror ("File ended in ignore errors region, possible missing @");
3481 gc.cont.glob = TRUE;
3485 context_saveLocation (void)
3487 /* was llassert (fileloc_isUndefined (gc.saveloc)) */
3488 fileloc_free (gc.saveloc);
3489 gc.saveloc = fileloc_copy (g_currentloc);
3493 context_getSaveLocation (void)
3495 fileloc fl = gc.saveloc;
3496 gc.saveloc = fileloc_undefined;
3500 /*@observer@*/ cstring
3501 context_inFunctionName (void)
3503 if (gc.kind == CX_FUNCTION
3504 || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO
3505 || gc.kind == CX_MACROCONST
3506 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND)
3508 return (uentry_rawName (gc.cont.fcn));
3512 llcontbuglit ("context_inFunctionName: not in function");
3513 return (cstring_undefined);
3518 context_userSetFlag (flagcode f, bool b)
3520 DPRINTF (("set flag: %s", flagcode_unparse (f)));
3522 if (f == FLG_NEVERINCLUDE && b)
3524 if (gc.flags[FLG_EXPORTHEADER])
3526 llerror_flagWarning (cstring_makeLiteral
3527 ("setting +neverinclude after +exportheader. "
3528 "Turning off exportheader, since headers are not checked "
3529 "when +neverinclude is used."));
3531 gc.flags[FLG_EXPORTHEADER] = FALSE;
3536 if (f == FLG_EXPORTHEADER && b)
3538 if (gc.flags[FLG_NEVERINCLUDE])
3540 llerror_flagWarning (cstring_makeLiteral
3541 ("setting +exportheader after +neverinclude. "
3542 "Not setting exportheader, since headers are not checked "
3543 "when +neverinclude is used."));
3544 gc.flags[FLG_EXPORTHEADER] = FALSE;
3550 if (context_getFlag (FLG_WARNFLAGS) && f != FLG_NOF && f != FLG_OPTF)
3552 bool lastsetting = context_getFlag (f);
3554 if (bool_equal (lastsetting, b)
3555 && !flagcode_isSpecialFlag (f)
3556 && !flagcode_isIdemFlag (f)
3557 && !flagcode_hasArgument (f))
3559 llerror_flagWarning (message ("setting %s%s redundant with current value",
3560 cstring_makeLiteralTemp (b ? "+" : "-"),
3561 flagcode_unparse (f)));
3565 if (flagcode_isWarnUseFlag (f) && b)
3567 if (!context_getFlag (FLG_WARNUSE))
3569 llerror_flagWarning (message ("flag +%s is canceled by -warnuse",
3570 flagcode_unparse (f)));
3576 if (flagcode_isLibraryFlag (f))
3578 if (gc.library != FLG_ANSILIB
3581 llerror_flagWarning (message ("selecting library %s after library %s was "
3582 "selected (only one library may be used)",
3583 flagcode_unparse (f),
3584 flagcode_unparse (gc.library)));
3587 if (f == FLG_UNIXLIB)
3589 if (context_getFlag (FLG_WARNUNIXLIB))
3591 llerror_flagWarning (cstring_makeLiteral
3592 ("selecting unix library. Unix library is "
3593 "ad hoc addition to POSIX library. Recommend "
3594 "use +posixlib to select POSIX library instead. "
3595 "Use -warnunixlib to suppress this message."));
3602 if (flagcode_isNameChecksFlag (f) && b && !context_maybeSet (FLG_NAMECHECKS))
3604 llerror_flagWarning (message
3605 ("setting +%s will not produce warnings with -namechecks. Must set +namechecks also.",
3606 flagcode_unparse (f)));
3609 gc.setGlobally[f] = TRUE;
3610 context_setFlag (f, b);
3614 context_fileSetFlag (flagcode f, ynm set)
3618 context_saveFlagSettings ();
3621 if (ynm_isOff (set))
3623 context_setFlagAux (f, FALSE, TRUE, FALSE);
3625 else if (ynm_isOn (set))
3627 context_setFlagAux (f, TRUE, TRUE, FALSE);
3628 gc.setLocally[f] = TRUE;
3632 context_restoreFlag (f);
3637 context_restoreFlag (flagcode f)
3644 message ("Attempt to restore flag %s when no file scope flags "
3646 flagcode_unparse (f)),
3651 context_addFlagMarker (f, MAYBE);
3652 context_setFlagAux (f, gc.saveflags[f], FALSE, TRUE);
3658 context_setFlag (flagcode f, bool b)
3660 context_setFlagAux (f, b, FALSE, FALSE);
3664 context_setFlagTemp (flagcode f, bool b)
3666 DPRINTF (("Set flag temp: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3671 # define DOSET(ff,b) \
3672 do { if (inFile) { gc.setLocally[ff] = TRUE; \
3673 context_addFlagMarker (ff, ynm_fromBool (b)); } \
3674 DPRINTF (("set flag: %s / %s", flagcode_unparse (ff), bool_unparse (b))); \
3675 gc.flags[ff] = b; } while (FALSE)
3678 context_setFlagAux (flagcode f, bool b, bool
3679 inFile, /*@unused@*/ bool isRestore)
3681 DPRINTF (("set flag: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3683 if (f == FLG_USESTDERR)
3686 g_msgstream = stderr;
3688 g_msgstream = stdout;
3693 ** Removed test for special flags.
3696 if (flagcode_isIdemFlag (f))
3705 if (f >= FLG_ITS4MOSTRISKY && f <= FLG_ITS4LOWRISK)
3707 if (b) /* Turing higher level on, turns on all lower levels */
3711 case FLG_ITS4MOSTRISKY:
3712 DOSET (FLG_ITS4VERYRISKY, b);
3714 case FLG_ITS4VERYRISKY:
3715 DOSET (FLG_ITS4RISKY, b);
3718 DOSET (FLG_ITS4MODERATERISK, b);
3720 case FLG_ITS4MODERATERISK:
3721 DOSET (FLG_ITS4LOWRISK, b);
3723 case FLG_ITS4LOWRISK:
3728 else /* Turning level off, turns off all higher levels */
3732 case FLG_ITS4LOWRISK:
3733 DOSET (FLG_ITS4MODERATERISK, b);
3735 case FLG_ITS4MODERATERISK:
3736 DOSET (FLG_ITS4RISKY, b);
3739 DOSET (FLG_ITS4VERYRISKY, b);
3741 case FLG_ITS4VERYRISKY:
3742 DOSET (FLG_ITS4MOSTRISKY, b);
3744 case FLG_ITS4MOSTRISKY:
3754 DOSET (FLG_ALLEMPTY, b);
3755 DOSET (FLG_IFEMPTY, b);
3756 DOSET (FLG_WHILEEMPTY, b);
3757 DOSET (FLG_FOREMPTY, b);
3760 DOSET (FLG_PREDBOOL, b);
3761 DOSET (FLG_PREDBOOLINT, b);
3762 DOSET (FLG_PREDBOOLPTR, b);
3763 DOSET (FLG_PREDBOOLOTHERS, b);
3766 DOSET (FLG_CHECKSTRICTGLOBALIAS, b);
3767 DOSET (FLG_CHECKEDGLOBALIAS, b);
3768 DOSET (FLG_CHECKMODGLOBALIAS, b);
3769 DOSET (FLG_UNCHECKEDGLOBALIAS, b);
3772 DOSET (FLG_ALLBLOCK, b);
3773 DOSET (FLG_IFBLOCK, b);
3774 DOSET (FLG_WHILEBLOCK, b);
3775 DOSET (FLG_FORBLOCK, b);
3789 DOSET (FLG_GRAMMAR, b);
3791 case FLG_CODEIMPONLY:
3792 DOSET (FLG_CODEIMPONLY, b);
3793 DOSET (FLG_GLOBIMPONLY, b);
3794 DOSET (FLG_RETIMPONLY, b);
3795 DOSET (FLG_STRUCTIMPONLY, b);
3797 case FLG_SPECALLIMPONLY:
3798 DOSET (FLG_SPECALLIMPONLY, b);
3799 DOSET (FLG_SPECGLOBIMPONLY, b);
3800 DOSET (FLG_SPECRETIMPONLY, b);
3801 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3803 case FLG_ALLIMPONLY:
3804 DOSET (FLG_ALLIMPONLY, b);
3805 DOSET (FLG_GLOBIMPONLY, b);
3806 DOSET (FLG_RETIMPONLY, b);
3807 DOSET (FLG_STRUCTIMPONLY, b);
3808 DOSET (FLG_SPECGLOBIMPONLY, b);
3809 DOSET (FLG_SPECRETIMPONLY, b);
3810 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3812 case FLG_ANSILIMITS:
3813 DOSET (FLG_ANSILIMITS, b);
3814 DOSET (FLG_CONTROLNESTDEPTH, b);
3815 DOSET (FLG_STRINGLITERALLEN, b);
3816 DOSET (FLG_INCLUDENEST, b);
3817 DOSET (FLG_NUMSTRUCTFIELDS, b);
3818 DOSET (FLG_NUMENUMMEMBERS, b);
3822 context_setValue (FLG_CONTROLNESTDEPTH, DEFAULT_CONTROLNESTDEPTH);
3823 context_setValue (FLG_STRINGLITERALLEN, DEFAULT_STRINGLITERALLEN);
3824 context_setValue (FLG_INCLUDENEST, DEFAULT_INCLUDENEST);
3825 context_setValue (FLG_NUMSTRUCTFIELDS, DEFAULT_NUMSTRUCTFIELDS);
3826 context_setValue (FLG_NUMENUMMEMBERS, DEFAULT_NUMENUMMEMBERS);
3829 case FLG_EXTERNALNAMELEN:
3830 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3831 DOSET (FLG_EXTERNALNAMELEN, TRUE);
3833 case FLG_INTERNALNAMELEN:
3834 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3835 DOSET (FLG_INTERNALNAMELEN, TRUE);
3837 case FLG_EXTERNALNAMECASEINSENSITIVE:
3838 DOSET (FLG_EXTERNALNAMECASEINSENSITIVE, b);
3840 if (b && !gc.flags[FLG_DISTINCTEXTERNALNAMES])
3842 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3843 context_setValue (FLG_EXTERNALNAMELEN, 0);
3846 case FLG_INTERNALNAMECASEINSENSITIVE:
3847 DOSET (FLG_INTERNALNAMECASEINSENSITIVE, b);
3849 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3851 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3852 context_setValue (FLG_INTERNALNAMELEN, 0);
3855 case FLG_INTERNALNAMELOOKALIKE:
3856 DOSET (FLG_INTERNALNAMELOOKALIKE, b);
3858 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
3860 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3861 context_setValue (FLG_INTERNALNAMELEN, 0);
3865 DOSET (FLG_MODNOMODS, b);
3866 DOSET (FLG_MODGLOBSUNSPEC, b);
3867 DOSET (FLG_MODSTRICTGLOBSUNSPEC, b);
3870 DOSET (FLG_EXPORTVAR, b);
3871 DOSET (FLG_EXPORTFCN, b);
3872 DOSET (FLG_EXPORTTYPE, b);
3873 DOSET (FLG_EXPORTMACRO, b);
3874 DOSET (FLG_EXPORTCONST, b);
3875 gc.anyExports = TRUE;
3878 DOSET (FLG_RETEXPOSE, b);
3879 DOSET (FLG_ASSIGNEXPOSE, b);
3880 DOSET (FLG_CASTEXPOSE, b);
3883 DOSET (FLG_RETVALBOOL, b);
3884 DOSET (FLG_RETVALINT, b);
3885 DOSET (FLG_RETVALOTHER, b);
3890 DOSET (FLG_EXPORTLOCAL, FALSE);
3891 DOSET (FLG_DECLUNDEF, FALSE);
3892 DOSET (FLG_SPECUNDEF, FALSE);
3893 DOSET (FLG_TOPUNUSED, FALSE);
3897 DOSET (FLG_LOOPLOOPBREAK, b);
3898 DOSET (FLG_LOOPSWITCHBREAK, b);
3899 DOSET (FLG_SWITCHLOOPBREAK, b);
3900 DOSET (FLG_SWITCHSWITCHBREAK, b);
3901 DOSET (FLG_LOOPLOOPCONTINUE, b);
3902 DOSET (FLG_DEEPBREAK, b);
3905 DOSET (FLG_ACCESSMODULE, b);
3906 DOSET (FLG_ACCESSFILE, b);
3907 DOSET (FLG_ACCESSCZECH, b);
3910 DOSET (FLG_ALLMACROS, b);
3911 DOSET (FLG_FCNMACROS, b);
3912 DOSET (FLG_CONSTMACROS, b);
3915 if (b) { DOSET (FLG_ACCESSCZECH, b); }
3916 DOSET (FLG_CZECHFUNCTIONS, b);
3917 DOSET (FLG_CZECHVARS, b);
3918 DOSET (FLG_CZECHCONSTANTS, b);
3919 DOSET (FLG_CZECHTYPES, b);
3922 if (b) { DOSET (FLG_ACCESSSLOVAK, b); }
3923 DOSET (FLG_SLOVAKFUNCTIONS, b);
3924 DOSET (FLG_SLOVAKVARS, b);
3925 DOSET (FLG_SLOVAKCONSTANTS, b);
3926 DOSET (FLG_SLOVAKTYPES, b);
3928 case FLG_CZECHOSLOVAK:
3929 if (b) { DOSET (FLG_ACCESSCZECHOSLOVAK, b); }
3930 DOSET (FLG_CZECHOSLOVAKFUNCTIONS, b);
3931 DOSET (FLG_CZECHOSLOVAKVARS, b);
3932 DOSET (FLG_CZECHOSLOVAKCONSTANTS, b);
3933 DOSET (FLG_CZECHOSLOVAKTYPES, b);
3936 DOSET (FLG_NULLSTATE, b);
3937 DOSET (FLG_NULLDEREF, b);
3938 DOSET (FLG_NULLASSIGN, b);
3939 DOSET (FLG_NULLPASS, b);
3940 DOSET (FLG_NULLRET, b);
3943 DOSET (FLG_NULLSTATE, b);
3944 DOSET (FLG_NULLDEREF, b);
3945 DOSET (FLG_NULLASSIGN, b);
3946 DOSET (FLG_NULLPASS, b);
3947 DOSET (FLG_NULLRET, b);
3948 DOSET (FLG_COMPDEF, b);
3949 DOSET (FLG_COMPMEMPASS, b);
3950 DOSET (FLG_UNIONDEF, b);
3951 DOSET (FLG_MEMTRANS, b);
3952 DOSET (FLG_USERELEASED, b);
3953 DOSET (FLG_ALIASUNIQUE, b);
3954 DOSET (FLG_MAYALIASUNIQUE, b);
3955 DOSET (FLG_MUSTFREE, b);
3956 DOSET (FLG_MUSTDEFINE, b);
3957 DOSET (FLG_GLOBSTATE, b);
3958 DOSET (FLG_COMPDESTROY, b);
3959 DOSET (FLG_MUSTNOTALIAS, b);
3960 DOSET (FLG_MEMIMPLICIT, b);
3961 DOSET (FLG_BRANCHSTATE, b);
3962 /*@fallthrough@*/ /* also sets memtrans flags */
3964 DOSET (FLG_MEMTRANS, b);
3965 DOSET (FLG_EXPOSETRANS, b);
3966 DOSET (FLG_OBSERVERTRANS, b);
3967 DOSET (FLG_DEPENDENTTRANS, b);
3968 DOSET (FLG_NEWREFTRANS, b);
3969 DOSET (FLG_ONLYTRANS, b);
3970 DOSET (FLG_OWNEDTRANS, b);
3971 DOSET (FLG_FRESHTRANS, b);
3972 DOSET (FLG_SHAREDTRANS, b);
3973 DOSET (FLG_TEMPTRANS, b);
3974 DOSET (FLG_KEPTTRANS, b);
3975 DOSET (FLG_REFCOUNTTRANS, b);
3976 DOSET (FLG_STATICTRANS, b);
3977 DOSET (FLG_UNKNOWNTRANS, b);
3978 DOSET (FLG_KEEPTRANS, b);
3979 DOSET (FLG_IMMEDIATETRANS, b);
3986 if (b && !gc.anyExports
3987 && (f == FLG_EXPORTVAR || f == FLG_EXPORTFCN
3988 || f == FLG_EXPORTTYPE || f == FLG_EXPORTMACRO
3989 || f == FLG_EXPORTCONST
3990 || f == FLG_EXPORTANY))
3992 gc.anyExports = TRUE;
3997 context_maybeSet (flagcode d)
3999 return (gc.flags[d] || gc.setLocally[d]);
4003 context_getFlag (flagcode d)
4005 return (gc.flags[d]);
4009 context_flagOn (flagcode f, fileloc loc)
4011 return (!context_suppressFlagMsg (f, loc));
4014 static void context_saveFlagSettings (void)
4016 gc.savedFlags = TRUE;
4017 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4018 memcpy (gc.saveflags, gc.flags, sizeof (gc.flags));
4021 static void context_restoreFlagSettings (void)
4023 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4024 memcpy (gc.flags, gc.saveflags, sizeof (gc.flags));
4025 gc.savedFlags = FALSE;
4028 void context_setFilename (fileId fid, int lineno)
4029 /*@globals fileloc g_currentloc;@*/
4030 /*@modifies g_currentloc@*/
4032 if (fileId_baseEqual (currentFile (), fid))
4039 fileloc_setColumn (g_currentloc, 0);
4041 if (fileloc_isSpecialFile (g_currentloc))
4043 gc.inDerivedFile = TRUE;
4046 if (filelocStack_popPushFile (gc.locstack, g_currentloc))
4048 int maxdepth = context_getValue (FLG_INCLUDENEST);
4050 if (filelocStack_size (gc.locstack) > maxdepth)
4052 int depth = filelocStack_includeDepth (gc.locstack);
4054 if (depth > maxdepth)
4058 message ("Maximum include nesting depth "
4059 "(%d, current depth %d) exceeded",
4062 filelocStack_nextTop (gc.locstack)))
4064 filelocStack_printIncludes (gc.locstack);
4070 g_currentloc = fileloc_create (fid, lineno, 1);
4071 gc.inheader = fileId_isHeader (currentFile ());
4073 context_enterFileAux ();
4077 void context_enterIterDef (/*@observer@*/ uentry le)
4079 context_enterMacro (le);
4080 gc.acct = typeIdSet_subtract (gc.facct, gc.nacct);
4081 gc.kind = CX_ITERDEF;
4084 void context_enterIterEnd (/*@observer@*/ uentry le)
4086 context_enterMacro (le);
4087 gc.kind = CX_ITEREND;
4091 context_destroyMod (void)
4092 /*@globals killed gc@*/
4095 ctype_destroyMod ();
4099 fileTable_free (gc.ftab);
4100 filelocStack_free (gc.locstack);
4102 gc.ftab = fileTable_undefined;
4104 macrocache_free (gc.mc);
4105 sfree (gc.moduleaccess);
4108 fileloc_free (gc.saveloc); gc.saveloc = fileloc_undefined;
4109 fileloc_free (gc.pushloc); gc.pushloc = fileloc_undefined;
4112 sRefSetList_free (gc.modrecs);
4114 flagMarkerList_free (gc.markers);
4116 messageLog_free (gc.msgLog);
4118 clauseStack_free (gc.clauses);
4121 cstring_free (gc.msgAnnote);
4122 globSet_free (gc.globs_used);
4123 metaStateTable_free (gc.stateTable);
4124 annotationTable_free (gc.annotTable);
4131 bool context_msgBoolInt (void)
4133 return gc.flags [FLG_BOOLINT];
4136 bool context_msgCharInt (void)
4138 return gc.flags [FLG_CHARINT];
4141 bool context_msgEnumInt (void)
4143 return gc.flags [FLG_ENUMINT];
4146 bool context_msgPointerArith (void)
4148 return gc.flags [FLG_POINTERARITH];
4151 bool context_msgStrictOps (void)
4153 return gc.flags [FLG_STRICTOPS];
4157 bool context_msgLh (void)
4159 return gc.flags [FLG_DOLH];
4163 void context_pushLoc (void)
4165 fileloc_free (gc.pushloc);
4166 gc.pushloc = gc.saveloc;
4167 gc.saveloc = fileloc_undefined;
4170 void context_popLoc (void)
4172 gc.saveloc = fileloc_update (gc.saveloc, gc.pushloc);
4175 bool context_inGlobalScope (void)
4177 return (usymtab_inFileScope() || usymtab_inGlobalScope ());
4180 bool context_inInnerScope (void)
4182 return (gc.kind == CX_INNER);
4185 void context_setProtectVars (void)
4187 gc.protectVars = TRUE;
4190 bool context_anyErrors (void)
4192 return (gc.numerrors > 0);
4195 void context_hasError (void)
4198 DPRINTF (("num errors: %d", gc.numerrors));
4201 int context_numErrors (void)
4203 return gc.numerrors;
4206 bool context_neednl (void)
4211 void context_setNeednl (void)
4216 int context_getExpect (void)
4218 return (context_getValue (FLG_EXPECT));
4222 int context_getLCLExpect (void)
4224 return (context_getValue (FLG_LCLEXPECT));
4228 int context_getLimit (void)
4230 return (context_getValue (FLG_LIMIT));
4233 bool context_unlimitedMessages (void)
4235 return (context_getLimit () < 0);
4238 void context_releaseVars (void)
4240 llassert (gc.protectVars);
4241 gc.protectVars = FALSE;
4244 void context_sizeofReleaseVars (void)
4246 /* If there is a nested sizeof, this might not hold:
4247 llassert (gc.protectVars);
4250 gc.protectVars = FALSE;
4253 bool context_inProtectVars (void)
4255 return (gc.protectVars);
4258 void context_hideShowscan (void)
4260 gc.flags[FLG_SHOWSCAN] = FALSE;
4263 void context_unhideShowscan (void)
4265 gc.flags[FLG_SHOWSCAN] = TRUE;
4268 bool context_inHeader (void)
4270 return (gc.inheader);
4273 fileTable context_fileTable (void)
4278 cstring context_tmpdir (void)
4280 return (context_getString (FLG_TMPDIR));
4283 messageLog context_messageLog (void)
4288 bool context_inMacroFunction (void)
4290 return (gc.kind == CX_MACROFCN);
4293 bool context_inMacroConstant (void)
4295 return (gc.kind == CX_MACROCONST);
4298 bool context_inUnknownMacro (void)
4300 return (gc.kind == CX_UNKNOWNMACRO);
4303 void context_setShownFunction (void)
4305 gc.showfunction = FALSE;
4308 bool context_doDump (void)
4310 return cstring_isNonEmpty (context_getString (FLG_DUMP));
4313 bool context_doMerge (void)
4315 return cstring_isNonEmpty (context_getString (FLG_MERGE));
4318 cstring context_getDump (void)
4320 return context_getString (FLG_DUMP);
4323 cstring context_getMerge (void)
4325 return context_getString (FLG_MERGE);
4329 bool context_inLCLLib (void)
4331 return (gc.kind == CX_LCLLIB);
4334 bool context_inImport (void)
4336 return (gc.inimport);
4339 void context_enterImport (void)
4344 void context_leaveImport (void)
4346 gc.inimport = FALSE;
4350 bool context_inMacro (void)
4352 return (gc.kind == CX_MACROFCN || gc.kind == CX_MACROCONST
4353 || gc.kind == CX_UNKNOWNMACRO
4354 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND);
4357 bool context_inIterDef (void)
4359 return (gc.kind == CX_ITERDEF);
4362 bool context_inIterEnd (void)
4364 return (gc.kind == CX_ITEREND);
4367 int context_getLinesProcessed (void)
4369 return (gc.linesprocessed);
4372 int context_getSpecLinesProcessed (void)
4374 return (gc.speclinesprocessed);
4378 void context_processedSpecLine (void)
4380 gc.speclinesprocessed++;
4383 void context_resetSpecLines (void)
4385 gc.speclinesprocessed = 0;
4389 bool context_inGlobalContext (void)
4391 return (gc.kind == CX_GLOBAL);
4394 static void context_quietExitScopes (void)
4397 ** Try to restore the global scope (after an error).
4400 while (!usymtab_inFileScope ())
4402 usymtab_quietExitScope (g_currentloc);
4405 gc.cont.glob = TRUE;
4406 gc.kind = CX_GLOBAL;
4409 void context_checkGlobalScope (void)
4411 if (gc.kind != CX_GLOBAL)
4413 llcontbug (message ("Not in global scope as expected: %q", context_unparse ()));
4414 context_quietExitScopes ();
4418 void context_setFileId (fileId s)
4420 g_currentloc = fileloc_updateFileId (g_currentloc, s);
4423 bool context_setBoolName (void)
4425 return (!cstring_equalLit (context_getString (FLG_BOOLTYPE),
4429 cstring context_printBoolName (void)
4431 if (context_setBoolName ())
4433 return context_getBoolName ();
4437 return cstring_makeLiteralTemp ("boolean");
4441 cstring context_getBoolName (void)
4443 return (context_getString (FLG_BOOLTYPE));
4446 cstring context_getFalseName (void)
4448 return (context_getString (FLG_BOOLFALSE));
4451 cstring context_getTrueName (void)
4453 return (context_getString (FLG_BOOLTRUE));
4456 cstring context_getLarchPath (void)
4458 return (context_getString (FLG_LARCHPATH));
4461 cstring context_getLCLImportDir (void)
4463 return (context_getString (FLG_LCLIMPORTDIR));
4466 static void context_setJustPopped (void)
4468 gc.justpopped = TRUE;
4471 void context_clearJustPopped (void)
4473 gc.justpopped = FALSE;
4476 bool context_justPopped (void)
4478 return (gc.justpopped);
4481 void context_setMacroMissingParams (void)
4483 gc.macroMissingParams = TRUE;
4486 void context_resetMacroMissingParams (void)
4488 gc.macroMissingParams = FALSE;
4491 bool context_isMacroMissingParams (void)
4493 return (gc.macroMissingParams);
4496 void context_showFilelocStack (void)
4498 filelocStack_printIncludes (gc.locstack);
4501 metaStateTable context_getMetaStateTable (void)
4503 return gc.stateTable;
4506 metaStateInfo context_lookupMetaStateInfo (cstring key)
4508 return metaStateTable_lookup (gc.stateTable, key);
4511 /*@null@*/ annotationInfo context_lookupAnnotation (cstring annot)
4513 annotationInfo ainfo;
4515 ainfo = annotationTable_lookup (gc.annotTable, annot);
4520 void context_addAnnotation (annotationInfo ainfo)
4522 if (annotationTable_contains (gc.annotTable, annotationInfo_getName (ainfo)))
4526 message ("Duplicate annotation declaration: %s", annotationInfo_getName (ainfo)),
4527 annotationInfo_getLoc (ainfo));
4529 annotationInfo_free (ainfo);
4533 annotationTable_insert (gc.annotTable, ainfo);
4537 void context_addMetaState (cstring mname, metaStateInfo msinfo)
4539 if (metaStateTable_contains (gc.stateTable, mname))
4543 message ("Duplicate metastate declaration: %s", mname),
4544 metaStateInfo_getLoc (msinfo));
4545 cstring_free (mname);
4546 metaStateInfo_free (msinfo);
4550 DPRINTF (("Adding meta state: %s", mname));
4551 metaStateTable_insert (gc.stateTable, mname, msinfo);
4555 valueTable context_createValueTable (sRef s, stateInfo sinfo)
4557 if (metaStateTable_size (gc.stateTable) > 0)
4559 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4560 /*@i32 should use smaller value... */
4561 DPRINTF (("Value table for: %s", sRef_unparse (s)));
4563 metaStateTable_elements (gc.stateTable, msname, msi)
4565 mtContextNode context = metaStateInfo_getContext (msi);
4567 if (mtContextNode_matchesRefStrict (context, s))
4569 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4570 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4574 cstring_copy (metaStateInfo_getName (msi)),
4575 stateValue_createImplicit (metaStateInfo_getDefaultValue (msi, s),
4576 stateInfo_copy (sinfo)));
4580 DPRINTF (("No match: %s", metaStateInfo_unparse (msi)));
4583 end_metaStateTable_elements ;
4585 stateInfo_free (sinfo);
4586 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4591 stateInfo_free (sinfo);
4592 return valueTable_undefined;
4596 valueTable context_createGlobalMarkerValueTable (stateInfo sinfo)
4598 if (metaStateTable_size (gc.stateTable) > 0)
4600 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4601 /*@i32 should use smaller value... */
4603 metaStateTable_elements (gc.stateTable, msname, msi)
4605 /*@i23 only add global...*/
4606 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4607 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4609 valueTable_insert (res,
4610 cstring_copy (metaStateInfo_getName (msi)),
4611 stateValue_create (metaStateInfo_getDefaultGlobalValue (msi),
4612 stateInfo_copy (sinfo)));
4614 end_metaStateTable_elements ;
4616 stateInfo_free (sinfo);
4617 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4622 stateInfo_free (sinfo);
4623 return valueTable_undefined;