]> andersk Git - splint.git/blame - src/cscanner.l
andersk / splint.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
cpplib.c: added OS2 conditional after emtpy default: label (see
[splint.git] / src / cscanner.l
CommitLineData
ac0860d8 1/*;-*-C-*-;
2** Copyright (c) Massachusetts Institute of Technology 1994-1998.
3** All Rights Reserved.
4** Unpublished rights reserved under the copyright laws of
5** the United States.
6**
7** THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
8** OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
9**
10** This code is distributed freely and may be used freely under the
11** following conditions:
12**
13** 1. This notice may not be removed or altered.
14**
15** 2. Works derived from this code are not distributed for
16** commercial gain without explicit permission from MIT
17** (for permission contact lclint-request@sds.lcs.mit.edu).
18*/
19/*
20 * Modified by Herbert 08/19/97:
21 * - added #include for IBM's OS/2 compiler.
22 * - fixed weird bug with lookup of tmp files (OS/2 and MSDOS only).
23 */
24
25/*
26 * Modified by Mike Smith
27 * Corrected missing 'line' in scanf() calls in handleSpecial().
28 * Without this, I get an error when LCLint hits a '#line' directive
29 * in the pre-pre-processed source files. For safety, I have made these
30 * conditional on OS2 and MSDOS because I don't understand why noone else
31 * has seen this problem.
32 *
33 * Modified by Mike Smith, 4th June 1997
34 * Finally resolved the #line problem. The scanf() calls have been fixed to
35 * allow the following #line forms:-
36 *
37 * #line 123 "filename"
38 * #line 123
39 * # 123 "filename"
40 * # 123
41 *
42 * The last two are generated by the GNU pre-processor, apparently
43 */
44
45Digit [0-9]
46Letter [a-zA-Z_$]
47H [a-fA-F0-9]
48E [Ee][+-]?{Digit}+
49U (u|U)
50L (l|L)
51FS (f|F|l|L)
52IS (u|U|l|L)*
53ULSuffix ({U}{L}|{L}{U})
54
55%{
56/*
57** based on original C lexer by Nate Osgood
58** from hacrat@catfish.lcs.mit.edu Mon Jun 14 13:06:32 1993
59**
60*/
61
62# include "lclintMacros.nf"
9622303f 63# if defined(OS2) && defined(__IBMC__)
64 /* needed for isatty()... */
65# include <io.h>
66# else
ac0860d8 67# include <unistd.h>
9622303f 68# endif
69
ac0860d8 70# include "basic.h"
71
72# include "cgrammar.h"
73# include "cgrammar_tokens.h"
74
75# include "fileIdList.h"
76# include "portab.h"
77
ac0860d8 78static bool lastWasString = FALSE;
79static char savechar = '\0';
80
81/*@notfunction@*/
82# define yyinput() (incColumn (), getc (yyin))
83
84static /*@owned@*/ cstring lastidprocessed = cstring_undefined;
85static int lminput (void);
86static int tokLength = 0;
87static bool inSpecPart = FALSE;
88static bool continueLine = FALSE;
89
90static int ninput (void);
91static char processChar (void);
92static double processFloat (void);
93static /*@only@*/ exprNode processString (void);
94static long processDec (void);
95static long processHex (void);
96static long processOctal (void);
97static int processIdentifier (/*@only@*/ cstring)
98 /*@globals undef lastidprocessed@*/ ;
99static bool processHashIdentifier (/*@only@*/ cstring)
100 /*@globals undef lastidprocessed@*/ ;
101
102static int processSpec (int);
103static bool handleSpecial (char *);
104static int handleLlSpecial (void);
105static void handleMacro (void);
106static bool processMacro (void);
107static /*@only@*/ cstring makeIdentifier (char *);
108
109/* yes, this is exported! */
110bool g_expectingTypeName = TRUE; /* beginning of file can be type name! */
111
112static bool expectingMetaStateName = FALSE;
113
114static int returnInt (ctype, long);
115static int returnFloat (ctype, double);
116static int returnChar (char);
117static void setTokLength (int) /*@modifies g_currentloc@*/ ;
118static void setTokLengthT (size_t) /*@modifies g_currentloc@*/ ;
119
120static void advanceLine (void)
121{
122 tokLength = 0;
123 beginLine ();
124}
125
126/*@-allmacros@*/
127# define RETURN_INT(c,i) \
128 do { lastWasString = FALSE; \
129 return (returnInt (c, i)); } while (FALSE)
130
131# define RETURN_FLOAT(c,f) \
132 do { lastWasString = FALSE; \
133 return (returnFloat (c, f)); \
134 } while (FALSE)
135
136# define RETURN_CHAR(c) \
137 do { lastWasString = FALSE; \
138 return (returnChar (c)); \
139 } while (FALSE)
140
141# define RETURN_TOK(t) \
142 do { yylval.tok = lltok_create (t, fileloc_decColumn (g_currentloc, tokLength)); \
143 tokLength = 0; \
144 lastWasString = FALSE; \
145 return (t); } while (FALSE)
146
147# define RETURN_TYPE(t, ct) \
148 do { yylval.ctyp = ct; tokLength = 0; return (t); } while (FALSE)
149
150/* don't fileloc_decColumn (g_currentloc, tokLength));
151 the string could have \n's in it!
152*/
153
154# define RETURN_STRING(c) \
155 do { yylval.expr = exprNode_stringLiteral (c, fileloc_decColumn (g_currentloc, tokLength)); \
156 tokLength = 0; \
157 lastWasString = TRUE; \
158 return (CCONSTANT); } while (FALSE)
159
160# define RETURN_EXPR(e) \
161 do { yylval.expr = e; \
162 tokLength = 0; \
163 lastWasString = TRUE; \
164 return (CCONSTANT); } while (FALSE)
165
166/*@=allmacros@*/
167
168static void setTokLength (int len)
169{
170 addColumn (len);
171 tokLength = len;
172 DPRINTF (("Set tok length: %d", len));
173}
174
175static void setTokLengthT (size_t len)
176{
177 setTokLength (size_toInt (len));
178}
179
180# include "flex.head"
181
182/*@-unrecog@*/ /*@i5343@*/
183
184%}
185
186%%
187
188"/*" { llfatalbug (cstring_makeLiteral ("Comment in pre-processor output")); }
189
190"#"{Letter}({Letter}|{Digit})* {
191 context_saveLocation ();
192 setTokLength (longUnsigned_toInt (mstring_length (yytext)));
193
194 if (processHashIdentifier (makeIdentifier (yytext + 1)))
195 {
196 if (lastWasString)
197 {
198 /* was nothing! */ /*@i32@*/
199 RETURN_STRING (cstring_makeLiteral ("\"\""));
200 }
201 else
202 {
203 RETURN_STRING (cstring_makeLiteral ("\"\""));
204 }
205 }
206 else
207 {
208 if (handleSpecial (yytext))
209 {
210 setTokLength (1);
211 RETURN_TOK (0);
212 }
213 }
214 }
215"#" { if (handleSpecial (yytext))
216 {
217 setTokLength (1); RETURN_TOK (0);
218 }
219 }
220"..." { setTokLength (3); RETURN_TOK (CTOK_ELIPSIS); }
221"break" { setTokLength (5); RETURN_TOK (BREAK); }
222"case" { setTokLength (4); RETURN_TOK (CASE); }
223"continue" { setTokLength (8); RETURN_TOK (CONTINUE); }
224"default" { setTokLength (7); RETURN_TOK (DEFAULT); }
225"do" { setTokLength (2); RETURN_TOK (DO); }
226"else" { setTokLength (4); RETURN_TOK (CELSE); }
227"for" { setTokLength (3); RETURN_TOK (CFOR); }
228"goto" { setTokLength (4); RETURN_TOK (GOTO); }
229"if" { setTokLength (2); RETURN_TOK (CIF); }
230"return" { setTokLength (6); RETURN_TOK (RETURN); }
231"sizeof" { setTokLength (6); RETURN_TOK (CSIZEOF); }
232"offsetof" { setTokLength (8); RETURN_TOK (COFFSETOF); }
233"switch" { setTokLength (6); RETURN_TOK (SWITCH); }
234"while" { setTokLength (5); RETURN_TOK (WHILE); }
235"va_arg" { setTokLength (6); RETURN_TOK (VA_ARG); }
236"va_dcl" { setTokLength (6); RETURN_TOK (VA_DCL); }
237"inline" {
238 /* gcc extension...this might not be appropriate */
239 setTokLength (6); RETURN_TOK (QINLINE); }
240
241"struct" { setTokLength (6); RETURN_TOK (CSTRUCT); }
242"typedef" { setTokLength (7); RETURN_TOK (CTYPEDEF); }
243
244"union" { setTokLength (5); RETURN_TOK (CUNION); }
245"enum" { setTokLength (4); RETURN_TOK (CENUM); }
246
247"void" { setTokLength (4); RETURN_TYPE (CVOID, ctype_void); }
248"int" { setTokLength (3); RETURN_TYPE (CINT, ctype_int); }
249"double" { setTokLength (6); RETURN_TYPE (CDOUBLE, ctype_double); }
250"char" { setTokLength (4); RETURN_TYPE (CGCHAR, ctype_char); }
251"float" { setTokLength (5); RETURN_TYPE (CGFLOAT, ctype_float); }
252
253"long" { setTokLength (4); RETURN_TOK (QLONG); }
254"short" { setTokLength (5); RETURN_TOK (QSHORT); }
255"unsigned" { setTokLength (8); RETURN_TOK (QUNSIGNED); }
256"signed" { setTokLength (6); RETURN_TOK (QSIGNED); }
257
258"volatile" { setTokLength (8); RETURN_TOK (QVOLATILE); }
259"const" { setTokLength (5); RETURN_TOK (QCONST); }
260
261 /* some systems expect this! [gack!] */
262"__const" { setTokLength (7); RETURN_TOK (QCONST); }
263
264"extern" { setTokLength (6); RETURN_TOK (QEXTERN); }
265"auto" { setTokLength (4); RETURN_TOK (QAUTO); }
266"register" { setTokLength (8); RETURN_TOK (QREGISTER); }
267"static" { setTokLength (6); RETURN_TOK (QSTATIC); }
268
269\"(\\.|[^\\"])*\"([ \t\n]*\"(\\.|[^\\"])*\")* { RETURN_EXPR (processString ()); }
270L\"(\\.|[^\\"])*\"([ \t\n]*\"(\\.|[^\\"])*\")* { RETURN_EXPR (processString ()); }
271"out" { return (processSpec (QOUT)); }
272"in" { return (processSpec (QIN)); }
273"partial" { return (processSpec (QPARTIAL)); }
274"special" { return (processSpec (QSPECIAL)); }
275"anytype" { return (processSpec (QANYTYPE)); }
276"integraltype" { return (processSpec (QINTEGRALTYPE)); }
277"unsignedintegraltype" { return (processSpec (QUNSIGNEDINTEGRALTYPE)); }
278"signedintegraltype" { return (processSpec (QSIGNEDINTEGRALTYPE)); }
279"keep" { return (processSpec (QKEEP)); }
280"null" { return (processSpec (QNULL)); }
281"notnull" { return (processSpec (QNOTNULL)); }
282"isnull" { return (processSpec (QISNULL)); }
283"truenull" { return (processSpec (QTRUENULL)); }
284"falsenull" { return (processSpec (QFALSENULL)); }
285"relnull" { return (processSpec (QRELNULL)); }
286"reldef" { return (processSpec (QRELDEF)); }
287"exposed" { return (processSpec (QEXPOSED)); }
288"newref" { return (processSpec (QNEWREF)); }
289"tempref" { return (processSpec (QTEMPREF)); }
290"killref" { return (processSpec (QKILLREF)); }
291"refcounted" { return (processSpec (QREFCOUNTED)); }
292"checked" { return (processSpec (QCHECKED)); }
293"checkmod" { return (processSpec (QCHECKMOD)); }
294"checkedstrict" { return (processSpec (QCHECKEDSTRICT)); }
295"unchecked" { return (processSpec (QUNCHECKED)); }
296"only" { return (processSpec (QONLY)); }
297"owned" { return (processSpec (QOWNED)); }
298"observer" { return (processSpec (QOBSERVER)); }
299"dependent" { return (processSpec (QDEPENDENT)); }
300"unused" { return (processSpec (QUNUSED)); }
301"external" { return (processSpec (QEXTERNAL)); }
302"sef" { return (processSpec (QSEF)); }
303"shared" { return (processSpec (QSHARED)); }
304"yield" { return (processSpec (QYIELD)); }
305"undef" { return (processSpec (QUNDEF)); }
306"killed" { return (processSpec (QKILLED)); }
307"nullterminated" { return (processSpec (QNULLTERMINATED));}
308"MaxSet" { return (processSpec (QMAXSET));}
309"MaxRead" { return (processSpec (QMAXREAD));}
310"maxSet" { return (processSpec (QMAXSET));}
311"maxRead" { return (processSpec (QMAXREAD));}
312
313{Letter}({Letter}|{Digit})* { int tok;
314 context_saveLocation ();
315 setTokLength (longUnsigned_toInt (mstring_length (yytext)));
316 tok = processIdentifier (makeIdentifier (yytext));
317 if (tok != BADTOK)
318 {
319 return (tok);
320 }
321 }
3220[xX]{H}+ { setTokLengthT (mstring_length (yytext));
323 RETURN_INT (ctype_int, processHex ()); /* evs 2000-05-17 was ctype_uint */
324 }
3250[xX]{H}+{L} { setTokLengthT (mstring_length (yytext));
326 RETURN_INT (ctype_lint, processHex ()); }
3270[xX]{H}+{L}{L} { setTokLengthT (mstring_length (yytext));
328 RETURN_INT (ctype_llint, processHex ()); }
3290[xX]{H}+{U} { setTokLengthT (mstring_length (yytext));
330 RETURN_INT (ctype_uint, processHex ()); }
3310[xX]{H}+{ULSuffix} { setTokLengthT (mstring_length (yytext));
332 RETURN_INT (ctype_ulint, processHex ()); }
3330[xX]{H}+{U}{L}{L} { setTokLengthT (mstring_length (yytext));
334 RETURN_INT (ctype_ullint, processHex ()); }
3350[xX]{H}+{L}{L}{U} { setTokLengthT (mstring_length (yytext));
336 RETURN_INT (ctype_ullint, processHex ()); }
3370{Digit}+ { setTokLengthT (mstring_length (yytext));
338 RETURN_INT (ctype_int, processOctal ()); }
3390{Digit}+{U} { setTokLengthT (mstring_length (yytext));
340 RETURN_INT (ctype_uint, processOctal ()); }
3410{Digit}+{L} { setTokLengthT (mstring_length (yytext));
342 RETURN_INT (ctype_lint, processOctal ()); }
3430{Digit}+{L}{L} { setTokLengthT (mstring_length (yytext));
344 RETURN_INT (ctype_llint, processOctal ()); }
3450{Digit}+{ULSuffix} { setTokLengthT (mstring_length (yytext));
346 RETURN_INT (ctype_ulint, processOctal ()); }
3470{Digit}+{U}{L}{L} { setTokLengthT (mstring_length (yytext));
348 RETURN_INT (ctype_ullint, processOctal ()); }
3490{Digit}+{L}{L}{U} { setTokLengthT (mstring_length (yytext));
350 RETURN_INT (ctype_ullint, processOctal ()); }
351{Digit}+ { setTokLengthT (mstring_length (yytext));
352 RETURN_INT (ctype_int, processDec ()); }
353{Digit}+{U} { setTokLengthT (mstring_length (yytext));
354 RETURN_INT (ctype_uint, processDec ()); }
355{Digit}+{L} { setTokLengthT (mstring_length (yytext));
356 RETURN_INT (ctype_lint, processDec ()); }
357{Digit}+{L}{L} { setTokLengthT (mstring_length (yytext));
358 RETURN_INT (ctype_llint, processDec ()); }
359{Digit}+{ULSuffix} { setTokLengthT (mstring_length (yytext));
360 RETURN_INT (ctype_ulint, processDec ()); }
361{Digit}+{U}{L}{L} { setTokLengthT (mstring_length (yytext));
362 RETURN_INT (ctype_ullint, processDec ()); }
363{Digit}+{L}{L}{U} { setTokLengthT (mstring_length (yytext));
364 RETURN_INT (ctype_ullint, processDec ()); }
365'(\\.|[^\\'])+' { setTokLengthT (mstring_length (yytext));
366 RETURN_CHAR (processChar ()); }
367L'(\\.|[^\\'])+' { setTokLengthT (mstring_length (yytext));
368 RETURN_CHAR (processChar ()); }
369{Digit}+{E}[fF] { setTokLengthT (mstring_length (yytext));
370 RETURN_FLOAT (ctype_float, processFloat ()); }
371{Digit}+{E}[lL] { setTokLengthT (mstring_length (yytext));
372 RETURN_FLOAT (ctype_ldouble, processFloat ()); }
373{Digit}+{E} { setTokLengthT (mstring_length (yytext));
374 RETURN_FLOAT (ctype_double, processFloat ()); }
375
376{Digit}*"."{Digit}+({E})?[fF] { setTokLengthT (mstring_length (yytext));
377 RETURN_FLOAT (ctype_float, processFloat ()); }
378{Digit}*"."{Digit}+({E})?[lL] { setTokLengthT (mstring_length (yytext));
379 RETURN_FLOAT (ctype_ldouble, processFloat ()); }
380{Digit}*"."{Digit}+({E})? { setTokLengthT (mstring_length (yytext));
381 RETURN_FLOAT (ctype_double, processFloat ()); }
382
383{Digit}+"."{Digit}*({E})?[fF] { setTokLengthT (mstring_length (yytext));
384 RETURN_FLOAT (ctype_float, processFloat ()); }
385{Digit}+"."{Digit}*({E})?[lL] { setTokLengthT (mstring_length (yytext));
386 RETURN_FLOAT (ctype_ldouble, processFloat ()); }
387{Digit}+"."{Digit}*({E})? { setTokLengthT (mstring_length (yytext));
388 RETURN_FLOAT (ctype_double, processFloat ()); }
389
390">>=" { setTokLength (3); RETURN_TOK (RIGHT_ASSIGN); }
391"<<=" { setTokLength (3); RETURN_TOK (LEFT_ASSIGN); }
392"+=" { setTokLength (2); RETURN_TOK (ADD_ASSIGN); }
393"-=" { setTokLength (2); RETURN_TOK (SUB_ASSIGN); }
394"*=" { setTokLength (2); RETURN_TOK (MUL_ASSIGN); }
395"/=" { setTokLength (2); RETURN_TOK (DIV_ASSIGN); }
396"%=" { setTokLength (2); RETURN_TOK (MOD_ASSIGN); }
397"&=" { setTokLength (2); RETURN_TOK (AND_ASSIGN); }
398"^=" { setTokLength (2); RETURN_TOK (XOR_ASSIGN); }
399"|=" { setTokLength (2); RETURN_TOK (OR_ASSIGN); }
400">>" { setTokLength (2); RETURN_TOK (RIGHT_OP); }
401"<<" { setTokLength (2); RETURN_TOK (LEFT_OP); }
402"++" { setTokLength (2); RETURN_TOK (INC_OP); }
403"--" { setTokLength (2); RETURN_TOK (DEC_OP); }
404"->" { setTokLength (2); RETURN_TOK (ARROW_OP); }
405"&&" { setTokLength (2); RETURN_TOK (AND_OP); }
406"||" { setTokLength (2); RETURN_TOK (OR_OP); }
407"<=" { setTokLength (2); RETURN_TOK (LE_OP); }
408">=" { setTokLength (2); RETURN_TOK (GE_OP); }
409"==" { setTokLength (2); RETURN_TOK (EQ_OP); }
410"!=" { setTokLength (2); RETURN_TOK (NE_OP); }
411";" { setTokLength (1); RETURN_TOK (TSEMI); }
412"{" { setTokLength (1); RETURN_TOK (TLBRACE); }
413"}" { setTokLength (1); RETURN_TOK (TRBRACE); }
414"," { setTokLength (1); RETURN_TOK (TCOMMA); }
415":" { setTokLength (1); RETURN_TOK (TCOLON); }
416"=" { setTokLength (1); RETURN_TOK (TASSIGN); }
417"(" { setTokLength (1); RETURN_TOK (TLPAREN); }
418")" { setTokLength (1); RETURN_TOK (TRPAREN); }
419"[" { setTokLength (1); RETURN_TOK (TLSQBR); }
420"]" { setTokLength (1); RETURN_TOK (TRSQBR); }
421"." { setTokLength (1); RETURN_TOK (TDOT); }
422"&" { setTokLength (1); RETURN_TOK (TAMPERSAND); }
423"!" { setTokLength (1); RETURN_TOK (TEXCL); }
424
425
426"~" { setTokLength (1); RETURN_TOK (TTILDE); }
427"-" { setTokLength (1); RETURN_TOK (TMINUS); }
428"+" { setTokLength (1); RETURN_TOK (TPLUS); }
429"*" { setTokLength (1); RETURN_TOK (TMULT); }
430"/" { setTokLength (1); RETURN_TOK (TDIV); }
431"%" { setTokLength (1); RETURN_TOK (TPERCENT); }
432"<" { setTokLength (1); RETURN_TOK (TLT); }
433">" { setTokLength (1); RETURN_TOK (TGT); }
434"^" { setTokLength (1); RETURN_TOK (TCIRC); }
435"|" { setTokLength (1); RETURN_TOK (TBAR); }
436"?" { setTokLength (1); RETURN_TOK (TQUEST); }
437
438
439"/\\" { setTokLength (1); RETURN_TOK (TCAND); }
440
441
442[ \t\v\f] { incColumn (); }
443\n { context_incLineno ();
444 if (tokLength != 0) {
445 tokLength = 0;
446 /* No error to report
447 voptgenerror
448 (FLG_SYNTAX,
449 message ("Likely parse error: token spans multiple lines."),
450 g_currentloc);
451 */
452 }
453
454 if (continueLine)
455 {
456 continueLine = FALSE;
457 }
458 else
459 {
460 if (context_inMacro ())
461 {
462 /* Don't use RETURN_TOK */
463 yylval.tok = lltok_create (TENDMACRO, g_currentloc);
464 lastWasString = FALSE;
465 return (TENDMACRO);
466 }
467 }
468 }
469"@@MR@@" { setTokLength (6);
470
471 if (processMacro ()) {
472 if (context_inIterDef ())
473 {
474 RETURN_TOK (LLMACROITER);
475 }
476 if (context_inIterEnd ())
477 {
478 RETURN_TOK (LLMACROEND);
479 }
480 if (context_inMacro ())
481 {
482 RETURN_TOK (LLMACRO);
483 }
484 }
485 }
486"@QLMR" { if (context_inHeader () || context_inFunction ())
487 {
488 handleMacro ();
489 }
490 else
491 {
492 int nspchar = ninput ();
493 int nspaces;
494
495 /*
496 ** This is a hack to get the column number correct.
497 */
498
499 llassert (nspchar >= '0' && nspchar <= '9');
500
501 nspaces = nspchar - '0';
502
503 setTokLength (5 + nspaces);
504
505 if (processMacro ())
506 {
507 if (context_inIterDef ())
508 {
509 RETURN_TOK (LLMACROITER);
510 }
511 if (context_inIterEnd ())
512 {
513 RETURN_TOK (LLMACROEND);
514 }
515 if (context_inMacro ())
516 {
517 RETURN_TOK (LLMACRO);
518 }
519 }
520 }
521 }
522"@.CT" { setTokLength (4); lldiagmsg (ctype_unparseTable ()); }
523"@.FA" { setTokLength (4); lldiagmsg (message ("Access types: %q", typeIdSet_unparse (context_fileAccessTypes ()))); }
524"@.F" { setTokLength (3);
525 lldiagmsg (message ("%q: *** marker ***", fileloc_unparse (g_currentloc)));
526 }
527"@.L" { setTokLength (3); usymtab_printLocal (); }
528"@.A" { setTokLength (3); lldiagmsg (usymtab_unparseAliases ()); }
529"@.C" { setTokLength (3); lldiagmsg (context_unparse ()); }
530"@.W" { setTokLength (3); lldiagmsg (context_unparseClauses ()); }
531"@.G" { setTokLength (3); usymtab_printGuards (); }
532"@.S" { setTokLength (3); usymtab_printOut (); }
533"@.X" { setTokLength (3); usymtab_printAll (); }
534"@.Z" { setTokLength (3); usymtab_printComplete (); }
535"@.T" { setTokLength (3); usymtab_printTypes (); }
536"@.K" { setTokLength (3); lldiagmsg (usymtab_unparseStack ()); }
537"@.M" { setTokLength (3);
538 lldiagmsg (message ("Can modify: %q",
539 sRefSet_unparse (context_modList ())));
540 }
541"%{" { /* BEFORE_COMMENT_MARKER */
542 int tok;
543 incColumn (); incColumn ();
544 tok = handleLlSpecial ();
545
546 if (tok != BADTOK)
547 {
548 if (tok == CANNOTATION) {
549 return (tok);
550 } else {
551 /* Beware - this bashes yylval! */
552 RETURN_TOK (tok);
553 }
554 }
555 }
556"%}" { /* AFTER_COMMENT_MARKER */
557 setTokLength (2);
558 inSpecPart = FALSE;
559 RETURN_TOK (QENDMACRO); }
560"\\" { incColumn (); continueLine = TRUE; }
561. { incColumn ();
562 if ((int) *yytext == 13 ) {
563 ;
564 } else {
565 voptgenerror
566 (FLG_SYNTAX,
567 message ("Invalid character (ascii: %d), skipping character",
568 (int)(*yytext)),
569 g_currentloc);
570 }
571 }
572%%
573
574struct skeyword
575{
576 /*@null@*/ /*@observer@*/ char *name;
577 int token;
578} ;
579
580/*
581** These tokens are followed by syntax that is parsed by the
582** grammar proper.
583*/
584
585struct skeyword s_parsetable[] = {
586 { "modifies", QMODIFIES } ,
587 { "globals", QGLOBALS } ,
588 { "alt", QALT } ,
589 { "warn", QWARN } ,
590 { "constant", QCONSTANT } ,
591 { "function", QFUNCTION } ,
592 { "iter", QITER } ,
593 { "defines", QDEFINES } ,
594 { "uses", QUSES } ,
595 { "allocates", QALLOCATES } ,
596 { "sets", QSETS } ,
597 { "releases", QRELEASES } ,
598 { "pre", QPRECLAUSE } ,
599 { "post", QPOSTCLAUSE } ,
600 { "setBufferSize", QSETBUFFERSIZE},
601 { "setStringLength", QSETSTRINGLENGTH},
602 { "testinRange", QTESTINRANGE},
603 { "requires", QPRECLAUSE } ,
604 { "ensures", QPOSTCLAUSE } ,
605 { NULL, BADTOK }
606} ;
607
608/*
609** These tokens are either stand-alone tokens, or followed by
610** token-specific text.
611*/
612
613struct skeyword s_keytable[] = {
614 { "anytype", QANYTYPE } ,
615 { "integraltype", QINTEGRALTYPE } ,
616 { "unsignedintegraltype", QUNSIGNEDINTEGRALTYPE } ,
617 { "signedintegraltype", QSIGNEDINTEGRALTYPE } ,
618 { "out", QOUT } ,
619 { "in", QIN } ,
620 { "only", QONLY } ,
621 { "owned", QOWNED } ,
622 { "dependent", QDEPENDENT } ,
623 { "partial", QPARTIAL } ,
624 { "special", QSPECIAL } ,
625 { "truenull", QTRUENULL } ,
626 { "falsenull", QFALSENULL } ,
627 { "keep", QKEEP } ,
628 { "kept", QKEPT } ,
629 { "notnull", QNOTNULL } ,
630 { "abstract", QABSTRACT } ,
631 { "concrete", QCONCRETE } ,
632 { "mutable", QMUTABLE } ,
633 { "immutable", QIMMUTABLE } ,
634 { "unused", QUNUSED } ,
635 { "external", QEXTERNAL } ,
636 { "sef", QSEF } ,
637 { "unique", QUNIQUE } ,
638 { "returned", QRETURNED } ,
639 { "exposed", QEXPOSED } ,
640 { "refcounted", QREFCOUNTED } ,
641 { "refs", QREFS } ,
642 { "newref", QNEWREF } ,
643 { "tempref", QTEMPREF } ,
644 { "killref", QKILLREF } ,
645 { "null", QNULL } ,
646 { "relnull", QRELNULL } ,
647 { "nullterminated", QNULLTERMINATED },
648 { "setBufferSize", QSETBUFFERSIZE },
649 { "testInRange", QTESTINRANGE},
650 { "MaxSet", QMAXSET},
651 { "MaxRead", QMAXREAD},
652 { "reldef", QRELDEF } ,
653 { "observer", QOBSERVER } ,
654 { "exits", QEXITS } ,
655 { "mayexit", QMAYEXIT } ,
656 { "trueexit", QTRUEEXIT } ,
657 { "falseexit", QFALSEEXIT } ,
658 { "neverexit", QNEVEREXIT } ,
659 { "temp", QTEMP } ,
660 { "shared", QSHARED } ,
661 { "ref", QREF } ,
662 { "unchecked", QUNCHECKED } ,
663 { "checked", QCHECKED } ,
664 { "checkmod", QCHECKMOD } ,
665 { "checkedstrict", QCHECKEDSTRICT } ,
666 { "innercontinue", QINNERCONTINUE } ,
667 { "innerbreak", QINNERBREAK } ,
668 { "loopbreak", QLOOPBREAK } ,
669 { "switchbreak", QSWITCHBREAK } ,
670 { "safebreak", QSAFEBREAK } ,
671 { "fallthrough", QFALLTHROUGH } ,
672 { "l_fallthrou", QLINTFALLTHROUGH } ,
673 { "l_fallth", QLINTFALLTHRU } ,
674 { "notreached", QNOTREACHED } ,
675 { "l_notreach", QLINTNOTREACHED } ,
676 { "printflike", QPRINTFLIKE } ,
677 { "l_printfli", QLINTPRINTFLIKE } ,
678 { "scanflike", QSCANFLIKE } ,
679 { "messagelike", QMESSAGELIKE } ,
680 { "l_argsus", QARGSUSED } ,
681 { NULL, BADTOK }
682} ;
683
684/*
685** would be better if these weren't hard coded...
686*/
687
688static bool isArtificial (cstring s)
689{
690 return (cstring_equalLit (s, "modifies")
691 || cstring_equalLit (s, "globals")
692 || cstring_equalLit (s, "warn")
693 || cstring_equalLit (s, "alt"));
694}
695
696void swallowMacro (void)
697{
698 int i;
699 bool skipnext = FALSE;
700
701 while ((i = lminput ()) != EOF)
702 {
703 char c = (char) i;
704
705
706 if (c == '\\')
707 {
708 skipnext = TRUE;
709 }
710 else if (c == '\n')
711 {
712 if (skipnext)
713 {
714 skipnext = FALSE;
715 }
716 else
717 {
718 reader_checkUngetc (i, yyin);
719 return;
720 }
721 }
722 }
723
724 if (i != EOF)
725 {
726 reader_checkUngetc (i, yyin);
727 }
728}
729
730static int commentMarkerToken (cstring s)
731{
732 int i = 0;
733
734 while (s_parsetable[i].name != NULL)
735 {
736 DPRINTF (("Try :%s:%s:", s, s_parsetable[i].name));
737
738 if (cstring_equalLit (s, s_parsetable[i].name))
739 {
740 return s_parsetable[i].token;
741 }
742
743 i++;
744 }
745
746 return BADTOK;
747}
748
749static int tokenMacroCode (cstring s)
750{
751 int i = 0;
752
753 while (s_keytable[i].name != NULL)
754 {
755 if (cstring_equalLit (s, s_keytable[i].name))
756 {
757 if (s_keytable[i].token == QLINTFALLTHROUGH)
758 {
759 voptgenerror
760 (FLG_WARNLINTCOMMENTS,
761 cstring_makeLiteral
762 ("Traditional lint comment /*FALLTHROUGH*/ used. "
763 "This is interpreted by "
764 "LCLint in the same way as most Unix lints, but it is "
765 "preferable to replace it with the /*@fallthrough@*/ "
766 "semantic comment"),
767 g_currentloc);
768 return QFALLTHROUGH;
769 }
770 else if (s_keytable[i].token == QLINTFALLTHRU)
771 {
772 voptgenerror
773 (FLG_WARNLINTCOMMENTS,
774 cstring_makeLiteral
775 ("Traditional lint comment /*FALLTHRU*/ used. "
776 "This is interpreted by "
777 "LCLint in the same way as most Unix lints, but it is "
778 "preferable to replace it with the /*@fallthrough@*/ "
779 "semantic comment"),
780 g_currentloc);
781 return QFALLTHROUGH;
782 }
783 else if (s_keytable[i].token == QLINTNOTREACHED)
784 {
785 voptgenerror
786 (FLG_WARNLINTCOMMENTS,
787 cstring_makeLiteral
788 ("Traditional lint comment /*NOTREACHED*/ used. "
789 "This is interpreted by "
790 "LCLint in the same way as most Unix lints, but it is "
791 "preferable to replace it with the /*@notreached@*/ "
792 "semantic comment."),
793 g_currentloc);
794
795 return QNOTREACHED;
796 }
797 else if (s_keytable[i].token == QPRINTFLIKE)
798 {
799 setSpecialFunction (qual_createPrintfLike ());
800 return SKIPTOK;
801 }
802 else if (s_keytable[i].token == QLINTPRINTFLIKE)
803 {
804 voptgenerror
805 (FLG_WARNLINTCOMMENTS,
806 cstring_makeLiteral
807 ("Traditional lint comment /*PRINTFLIKE*/ used. "
808 "This is interpreted by "
809 "LCLint in the same way as most Unix lints, but it is "
810 "preferable to replace it with either /*@printflike@*/, "
811 "/*@scanflike@*/ or /*@messagelike@*/."),
812 g_currentloc);
813
814 setSpecialFunction (qual_createPrintfLike ());
815 return SKIPTOK;
816 }
817 else if (s_keytable[i].token == QSCANFLIKE)
818 {
819 setSpecialFunction (qual_createScanfLike ());
820 return SKIPTOK;
821 }
822 else if (s_keytable[i].token == QMESSAGELIKE)
823 {
824 setSpecialFunction (qual_createMessageLike ());
825 return SKIPTOK;
826 }
827 else if (s_keytable[i].token == QARGSUSED)
828 {
829 voptgenerror
830 (FLG_WARNLINTCOMMENTS,
831 cstring_makeLiteral
832 ("Traditional lint comment /*ARGSUSED*/ used. "
833 "This is interpreted by "
834 "LCLint in the same way as most Unix lints, but it is "
835 "preferable to use /*@unused@*/ annotations on "
836 "the unused parameters."),
837 g_currentloc);
838
839 setArgsUsed ();
840 return SKIPTOK;
841 }
842
843 return s_keytable[i].token;
844 }
845
846 i++;
847 }
848
849 return BADTOK;
850}
851
852static int lminput ()
853{
854 if (savechar == '\0')
855 {
856 incColumn ();
857 return (input ());
858 }
859 else
860 {
861 int save = (int) savechar;
862 savechar = '\0';
863 return save;
864 }
865}
866
867static void lmsavechar (char c)
868{
869 if (savechar == '\0') savechar = c;
870 else
871 {
872 llbuglit ("lmsavechar: override");
873 }
874}
875
876static int returnFloat (ctype ct, double f)
877{
878 yylval.expr = exprNode_floatLiteral (f, ct, cstring_fromChars (yytext),
879 fileloc_decColumn (g_currentloc, tokLength));
880 tokLength = 0;
881 return (CCONSTANT);
882}
883
884static int returnInt (ctype ct, long i)
885{
886 ctype c = ct;
887
888 if (ctype_equal (ct, ctype_int))
889 {
890 if (i == 0)
891 {
892 c = context_typeofZero ();
893 }
894 else if (i == 1)
895 {
896 c = context_typeofOne ();
897 }
898 }
899
900 yylval.expr = exprNode_numLiteral (c, cstring_fromChars (yytext),
901 fileloc_decColumn (g_currentloc, tokLength), i);
902 tokLength = 0;
903 return (CCONSTANT);
904}
905
906static int returnChar (char c)
907{
908 yylval.expr = exprNode_charLiteral (c, cstring_fromChars (yytext),
909 fileloc_decColumn (g_currentloc, tokLength));
910 tokLength = 0;
911 return (CCONSTANT);
912}
913
914static int ninput ()
915{
916 int c = lminput ();
917
918 if (c != EOF && ((char)c == '\n'))
919 {
920 context_incLineno ();
921 }
922
923 return c;
924}
925
926static char macro_nextChar ()
927{
928 static bool in_quote = FALSE, in_escape = FALSE, in_char = FALSE;
929 int ic;
930 char c;
931
932 ic = lminput ();
933 c = char_fromInt (ic);
934
935 if (!in_quote && !in_char && (c == '\\' || c == BEFORE_COMMENT_MARKER[0]))
936 {
937 if (c == '\\')
938 {
939 while ((c = char_fromInt (lminput ())) != '\0' && c != '\n')
940 {
941 ; /* skip to newline */
942 }
943
944 context_incLineno ();
945
946 if (c != '\0')
947 {
948 return macro_nextChar ();
949 }
950 else
951 {
952 return c;
953 }
954 }
955 else /* if (c == '@') */
956 {
957 llassert (FALSE); /*@i23@*/
958 if (handleLlSpecial () != BADTOK)
959 {
960 llerrorlit (FLG_SYNTAX, "Macro cannot use special syntax");
961 }
962
963 return macro_nextChar ();
964 }
965 }
966 else if (!in_escape && c == '\"')
967 {
968 in_quote = !in_quote;
969 }
970 else if (!in_escape && c == '\'')
971 {
972 in_char = !in_char;
973 }
974 else if ((in_quote || in_char) && c == '\\')
975 {
976 in_escape = !in_escape;
977 }
978 else if ((in_quote || in_char) && in_escape)
979 {
980 in_escape = FALSE;
981 }
982 else if (!in_quote && c == '/')
983 {
984 char c2;
985
986 if ((c2 = char_fromInt (lminput ())) == '*')
987 {
988 while (c2 != '\0')
989 {
990 while ((c2 = char_fromInt (lminput ())) != '\0'
991 && c2 != '\n' && c2 != '*')
992 {
993 ;
994 }
995
996 if (c2 == '*')
997 {
998 while ((c2 = char_fromInt (lminput ())) != '\0'
999 && c2 == '*')
1000 {
1001 ;
1002 }
1003
1004 if (c2 == '/')
1005 {
1006 goto outofcomment;
1007 }
1008 }
1009 else
1010 {
1011 llfatalerror (cstring_makeLiteral ("Macro: bad comment!"));
1012 }
1013 }
1014 outofcomment:
1015 return macro_nextChar ();
1016 }
1017 else
1018 {
1019 /*** putchar does not work! why? puts to stdio...??! ***/
1020 lmsavechar (c2);
1021 }
1022 }
1023 return c;
1024}
1025
1026/*
1027** keeps semantic comments
1028*/
1029
1030static char macro_nextCharC ()
1031{
1032 static bool in_quote = FALSE, in_escape = FALSE, in_char = FALSE;
1033 char c;
1034
1035 c = char_fromInt (lminput ());
1036
1037 if (!in_quote && !in_char && c == '\\')
1038 {
1039 while ((c = char_fromInt (lminput ())) != '\0' && c != '\n')
1040 {
1041 ; /* skip to newline */
1042 }
1043
1044 context_incLineno ();
1045
1046 if (c != '\0')
1047 {
1048 return macro_nextCharC ();
1049 }
1050 else
1051 {
1052 return c;
1053 }
1054 }
1055 else if (!in_escape && c == '\"')
1056 {
1057 in_quote = !in_quote;
1058 }
1059 else if (!in_escape && c == '\'')
1060 {
1061 in_char = !in_char;
1062 }
1063 else if ((in_quote || in_char) && c == '\\')
1064 {
1065 in_escape = !in_escape;
1066 }
1067 else if ((in_quote || in_char) && in_escape)
1068 {
1069 in_escape = FALSE;
1070 }
1071 else if (!in_quote && c == '/')
1072 {
1073 char c2;
1074
1075 if ((c2 = char_fromInt (lminput ())) == '*')
1076 {
1077 while (c2 != '\0')
1078 {
1079 while ((c2 = char_fromInt (lminput ())) != '\0'
1080 && c2 != '\n' && c2 != '*')
1081 {
1082 ;
1083 }
1084
1085 if (c2 == '*')
1086 {
1087 while ((c2 = char_fromInt (lminput ())) != '\0'
1088 && c2 == '*')
1089 {
1090 ;
1091 }
1092
1093 if (c2 == '/')
1094 {
1095 goto outofcomment;
1096 }
1097 }
1098 else
1099 {
1100 llfatalerror (cstring_makeLiteral ("Macro: bad comment!"));
1101 }
1102 }
1103 outofcomment:
1104 return macro_nextCharC ();
1105 }
1106 else
1107 {
1108 lmsavechar (c2);
1109 }
1110 }
1111 return c;
1112}
1113
1114/*
1115** skips whitespace (handles line continuations)
1116** returns first non-whitespace character
1117*/
1118
1119static char skip_whitespace ()
1120{
1121 char c;
1122
1123 while ((c = macro_nextChar ()) == ' ' || c == '\t')
1124 {
1125 ;
1126 }
1127
1128 return c;
1129}
1130
1131static void handleMacro ()
1132{
1133 cstring mac = cstring_undefined;
1134 int macrocode;
1135 char c;
1136
1137 while (currentColumn () > 2)
1138 {
1139 mac = cstring_appendChar (mac, ' ');
1140 setTokLength (-1);
1141 }
1142
1143 c = macro_nextCharC ();
1144
1145 if (c >= '0' && c <= '9')
1146 {
1147 int i;
1148
1149 for (i = 0; i < ((c - '0') + 1); i++)
1150 {
1151 mac = cstring_appendChar (mac, ' ');
1152 }
1153 }
1154 else
1155 {
1156 BADBRANCH;
1157 }
1158
1159 while (((c = macro_nextCharC ()) != '\0') && (c != '\n'))
1160 {
1161 mac = cstring_appendChar (mac, c);
1162 }
1163
1164
1165 macrocode = tokenMacroCode (mac);
1166
1167 if (macrocode == BADTOK && !isArtificial (mac))
1168 {
1169 context_addMacroCache (mac);
1170 }
1171 else
1172 {
1173 cstring_free (mac);
1174 }
1175
1176 if (c == '\n')
1177 {
1178 context_incLineno ();
1179 }
1180}
1181
1182static bool processMacro (void)
1183{
1184 uentry e2;
1185 ctype ct;
1186 int noparams = 0;
1187 cstring fname = cstring_undefined;
1188 bool res = TRUE;
1189 bool isspecfcn = FALSE;
1190 bool isiter = FALSE;
1191 bool skipparam = FALSE;
1192 bool isenditer = FALSE;
1193 bool unknownm = FALSE;
1194 bool hasParams = FALSE;
1195 bool emptyMacro = FALSE;
1196 char c = skip_whitespace ();
1197 fileloc loc = fileloc_noColumn (g_currentloc);
1198
1199 /* are both of these necessary? what do they mean? */
1200 uentryList specparams = uentryList_undefined;
1201 uentryList pn = uentryList_undefined;
1202
1203 context_resetMacroMissingParams ();
1204
1205 if (c == '\0' || c == '\n')
1206 {
1207 llcontbug (cstring_makeLiteral ("Bad macro"));
1208 fileloc_free (loc);
1209 return FALSE;
1210 }
1211
1212 fname = cstring_appendChar (fname, c);
1213
1214 while ((c = macro_nextChar ()) != '(' && c != '\0'
1215 && c != ' ' && c != '\t' && c != '\n')
1216 {
1217 fname = cstring_appendChar (fname, c);
1218 }
1219
1220 if (c == ' ' || c == '\t' || c == '\n')
1221 {
1222 char oldc = c;
1223
1224 if (c != '\n')
1225 {
1226 while (c == ' ' || c == '\t')
1227 {
1228 c = macro_nextChar ();
1229 }
1230 unput (c);
1231 }
1232
1233 if (c == '\n')
1234 {
1235 emptyMacro = TRUE;
1236 unput (c);
1237 }
1238
1239 c = oldc;
1240 }
1241
1242 hasParams = (c == '(');
1243
1244 if (usymtab_exists (fname))
1245 {
1246 e2 = usymtab_lookupExpose (fname);
1247 ct = uentry_getType (e2);
1248
1249 if (uentry_isCodeDefined (e2)
1250 && fileloc_isUser (uentry_whereDefined (e2)))
1251 {
1252 if (optgenerror
1253 (FLG_MACROREDEF,
1254 message ("Macro %s already defined", fname),
1255 loc))
1256 {
1257 uentry_showWhereDefined (e2);
1258 uentry_clearDefined (e2);
1259 }
1260
1261 if (uentry_isFunction (e2))
1262 {
1263 uentry_setType (e2, ctype_unknown);
1264 ct = ctype_unknown;
1265 unknownm = TRUE;
1266 context_enterUnknownMacro (e2);
1267 }
1268 else
1269 {
1270 context_enterConstantMacro (e2);
1271 }
1272 }
1273 else
1274 {
1275 if (uentry_isForward (e2) && uentry_isFunction (e2))
1276 {
1277 unknownm = TRUE;
1278
1279 voptgenerror
1280 (FLG_MACROFCNDECL,
1281 message
1282 ("Parameterized macro has no prototype or specification: %s ",
1283 fname),
1284 loc);
1285
1286 ct = ctype_unknown;
1287 uentry_setType (e2, ctype_unknown);
1288 uentry_setFunctionDefined (e2, loc);
1289 uentry_setUsed (e2, fileloc_undefined);
1290 context_enterUnknownMacro (e2);
1291 }
1292 else
1293 {
1294 if (uentry_isIter (e2))
1295 {
1296 isiter = TRUE;
1297 specparams = uentry_getParams (e2);
1298 noparams = uentryList_size (specparams);
1299 uentry_setDefined (e2, loc);
1300 context_enterIterDef (e2);
1301 }
1302 else if (uentry_isEndIter (e2))
1303 {
1304 isenditer = TRUE;
1305 uentry_setDefined (e2, loc);
1306 context_enterIterEnd (e2); /* don't care about it now */
1307 /* but should parse like an iter! */
1308 }
1309 else if (uentry_isConstant (e2))
1310 {
1311 if (hasParams)
1312 {
1313 voptgenerror
1314 (FLG_INCONDEFS,
1315 message ("Constant %s implemented as parameterized macro",
1316 fname),
1317 g_currentloc);
1318
1319 uentry_showWhereSpecified (e2);
1320 uentry_setType (e2, ctype_unknown);
1321 uentry_makeConstantFunction (e2);
1322 uentry_setDefined (e2, g_currentloc);
1323 uentry_setFunctionDefined (e2, g_currentloc);
1324 context_enterUnknownMacro (e2);
1325 }
1326 else
1327 {
1328 if (!uentry_isSpecified (e2))
1329 {
1330 fileloc oloc = uentry_whereDeclared (e2);
1331
1332 if (fileloc_isLib (oloc))
1333 {
1334 ;
1335 }
1336 else if (fileloc_isUndefined (oloc)
1337 || fileloc_isPreproc (oloc))
1338 {
1339 if (!emptyMacro)
1340 {
1341 voptgenerror
1342 (FLG_MACROCONSTDECL,
1343 message
1344 ("Macro constant %q not declared",
1345 uentry_getName (e2)),
1346 loc);
1347 }
1348 }
1349 else if (!fileloc_withinLines (oloc, loc, 2))
1350 { /* bogus! will give errors if there is too much whitespace */
1351 voptgenerror
1352 (FLG_SYNTAX,
1353 message
1354 ("Macro constant name %s does not match name in "
1355 "previous constant declaration. This constant "
1356 "is declared at %q", fname,
1357 fileloc_unparse (oloc)),
1358 loc);
1359 }
1360 }
1361
1362 context_enterConstantMacro (e2);
1363 cstring_free (fname);
1364 fileloc_free (loc);
1365 return res;
1366 }
1367
1368 }
1369 else if (ctype_isFunction (ct))
1370 {
1371 isspecfcn = TRUE;
1372 specparams = ctype_argsFunction (ct);
1373 noparams = uentryList_size (specparams);
1374
1375 uentry_setFunctionDefined (e2, loc);
1376 context_enterMacro (e2);
1377 }
1378 else if (uentry_isVar (e2))
1379 {
1380 if (hasParams)
1381 {
1382 voptgenerror
1383 (FLG_INCONDEFS,
1384 message ("Variable %s implemented as parameterized macro",
1385 fname),
1386 loc);
1387
1388 uentry_showWhereSpecified (e2);
1389 uentry_setType (e2, ctype_unknown);
1390 uentry_makeVarFunction (e2);
1391 uentry_setDefined (e2, g_currentloc);
1392 uentry_setFunctionDefined (e2, g_currentloc);
1393 context_enterUnknownMacro (e2);
1394 }
1395 else
1396 {
1397 uentry ucons = uentry_makeConstant (fname,
1398 ctype_unknown,
1399 loc);
1400 if (uentry_isExpandedMacro (e2))
1401 {
1402 ; /* okay */
1403 }
1404 else
1405 {
1406 if (optgenerror
1407 (FLG_INCONDEFS,
1408 message ("Variable %s implemented by a macro",
1409 fname),
1410 loc))
1411 {
1412 uentry_showWhereSpecified (e2);
1413 }
1414 }
1415
1416 uentry_setDefined (e2, loc);
1417 uentry_setUsed (ucons, loc);
1418
1419 context_enterConstantMacro (ucons);
1420 uentry_markOwned (ucons);
1421 cstring_free (fname);
1422 return res;
1423 }
1424 }
1425 else
1426 {
1427 if (uentry_isDatatype (e2))
1428 {
1429 vgenhinterror
1430 (FLG_SYNTAX,
1431 message ("Type implemented as macro: %x",
1432 uentry_getName (e2)),
1433 message ("A type is implemented using a macro definition. A "
1434 "typedef should be used instead."),
1435 g_currentloc);
1436
1437 swallowMacro ();
1438 /* Must exit scope (not sure why a new scope was entered?) */
1439 usymtab_quietExitScope (g_currentloc);
1440 uentry_setDefined (e2, g_currentloc);
1441 res = FALSE;
1442 }
1443 else
1444 {
1445 llcontbug
1446 (message ("Unexpanded macro not function or constant: %q",
1447 uentry_unparse (e2)));
1448 uentry_setType (e2, ctype_unknown);
1449
1450 if (hasParams)
1451 {
1452 uentry_makeVarFunction (e2);
1453 uentry_setDefined (e2, g_currentloc);
1454 uentry_setFunctionDefined (e2, g_currentloc);
1455 context_enterUnknownMacro (e2);
1456 }
1457 }
1458 }
1459 }
1460 }
1461 }
1462 else
1463 {
1464 uentry ce;
1465
1466 /* evans 2001-09-09 - if it has params, assume a function */
1467 if (hasParams)
1468 {
1469 voptgenerror
1470 (FLG_MACROMATCHNAME,
1471 message ("Unexpanded macro %s does not match name of a declared "
1472 "function. The name used in the control "
1473 "comment on the previous line should match.",
1474 fname),
1475 loc);
1476
1477 ce = uentry_makeFunction (fname, ctype_unknown,
1478 typeId_invalid,
1479 globSet_undefined,
1480 sRefSet_undefined,
1481 warnClause_undefined,
1482 fileloc_undefined);
1483 uentry_setUsed (ce, loc); /* perhaps bogus? */
1484 e2 = usymtab_supEntryReturn (ce);
1485 context_enterUnknownMacro (e2);
1486 }
1487 else
1488 {
1489 voptgenerror
1490 (FLG_MACROMATCHNAME,
1491 message ("Unexpanded macro %s does not match name of a constant "
1492 "or iter declaration. The name used in the control "
1493 "comment on the previous line should match. "
1494 "(Assuming macro defines a constant.)",
1495 fname),
1496 loc);
1497
1498 ce = uentry_makeConstant (fname, ctype_unknown, fileloc_undefined);
1499 uentry_setUsed (ce, loc); /* perhaps bogus? */
1500 e2 = usymtab_supEntryReturn (ce);
1501
1502 context_enterConstantMacro (e2);
1503 cstring_free (fname);
1504 fileloc_free (loc);
1505 return res;
1506 }
1507 }
1508
1509 /* in macros, ( must follow immediatetly after name */
1510
1511 if (hasParams)
1512 {
1513 int paramno = 0;
1514
1515 c = skip_whitespace ();
1516
1517 while (c != ')' && c != '\0')
1518 {
1519 uentry param;
1520 bool suppress = context_inSuppressRegion ();
1521 cstring paramname = cstring_undefined;
1522
1523 /*
1524 ** save the parameter location
1525 */
1526
1527 decColumn ();
1528 context_saveLocation ();
1529 incColumn ();
1530
1531 while (c != ' ' && c != '\t' && c != ',' && c != '\0' && c != ')')
1532 {
1533 paramname = cstring_appendChar (paramname, c);
1534 c = macro_nextChar ();
1535 }
1536
1537 if (c == ' ' || c == '\t') c = skip_whitespace ();
1538
1539 if (c == ',')
1540 {
1541 c = macro_nextChar ();
1542 if (c == ' ' || c == '\t') c = skip_whitespace ();
1543 }
1544
1545 if (c == '\0')
1546 {
1547 llfatalerror (cstring_makeLiteral
1548 ("Bad macro syntax: uentryList"));
1549 }
1550
1551 if ((isspecfcn || isiter) && (paramno < noparams)
1552 && !uentry_isElipsisMarker (uentryList_getN
1553 (specparams, paramno)))
1554 {
1555 fileloc sloc = context_getSaveLocation ();
1556 uentry decl = uentryList_getN (specparams, paramno);
1557 sRef sr;
1558
1559 param = uentry_nameCopy (paramname, decl);
1560
1561 uentry_setParam (param);
1562 sr = sRef_makeParam (paramno, uentry_getType (param), stateInfo_makeLoc (sloc));
1563
1564 if (sRef_getNullState (sr) == NS_ABSNULL)
1565 {
1566 ctype pt = ctype_realType (uentry_getType (param));
1567
1568 if (ctype_isUser (pt))
1569 {
1570 uentry te = usymtab_getTypeEntrySafe (ctype_typeId (pt));
1571
1572 if (uentry_isValid (te))
1573 {
1574 sRef_setStateFromUentry (sr, te);
1575 }
1576 }
1577 else
1578 {
1579 sRef_setNullState (sr, NS_UNKNOWN, sloc);
1580 }
1581 }
1582
1583 uentry_setSref (param, sr);
1584 uentry_setDeclaredForceOnly (param, sloc);
1585
1586 skipparam = isiter && uentry_isOut (uentryList_getN (specparams, paramno));
1587 }
1588 else
1589 {
1590 fileloc sloc = context_getSaveLocation ();
1591
1592 param = uentry_makeVariableSrefParam
1593 (paramname, ctype_unknown, fileloc_copy (sloc),
1594 sRef_makeParam (paramno, ctype_unknown, stateInfo_makeLoc (sloc)));
1595 DPRINTF (("Unknown param: %s", uentry_unparseFull (param)));
1596 cstring_free (paramname);
1597
1598 sRef_setPosNull (uentry_getSref (param), sloc);
1599 uentry_setDeclaredForce (param, sloc);
1600
1601 skipparam = FALSE;
1602 fileloc_free (sloc);
1603 }
1604
1605 if (!skipparam)
1606 {
1607 llassert (!uentry_isElipsisMarker (param));
1608
1609 if (!suppress)
1610 {
1611 sRef_makeUnsafe (uentry_getSref (param));
1612 }
1613
1614 pn = uentryList_add (pn, uentry_copy (param));
1615 usymtab_supEntry (param);
1616 }
1617 else
1618 {
1619 /* don't add param */
1620 uentry_free (param);
1621 }
1622
1623 if (c == ',')
1624 {
1625 (void) macro_nextChar ();
1626 c = skip_whitespace ();
1627 }
1628
1629 paramno++;
1630 }
1631
1632 if (c == ')')
1633 {
1634 if (isspecfcn || isiter)
1635 {
1636 if (paramno != noparams && noparams >= 0)
1637 {
1638 advanceLine ();
1639
1640 voptgenerror
1641 (FLG_INCONDEFS,
1642 message ("Macro %s specified with %d args, defined with %d",
1643 fname, noparams, paramno),
1644 g_currentloc);
1645
1646 uentry_showWhereSpecified (e2);
1647 uentry_resetParams (e2, pn);
1648 }
1649 }
1650 else
1651 {
1652 uentry_resetParams (e2, pn);
1653 }
1654 }
1655 }
1656 else
1657 {
1658 /*
1659 ** the form should be:
1660 **
1661 ** # define newname oldname
1662 ** where oldname refers to a function matching the specification
1663 ** of newname.
1664 */
1665
1666 if (unknownm)
1667 {
1668 sRef_setGlobalScope ();
1669 usymtab_supGlobalEntry (uentry_makeVariableLoc (fname, ctype_unknown));
1670 sRef_clearGlobalScope ();
1671 }
1672 else
1673 {
1674 context_setMacroMissingParams ();
1675 }
1676 }
1677
1678
1679 /* context_setuentryList (pn); */
1680 usymtab_enterScope ();
1681
1682 fileloc_free (loc);
1683 cstring_free (fname);
1684
1685 return res;
1686}
1687
1688static bool handleSpecial (char *yyt)
1689{
1690 char *l = mstring_create (MAX_NAME_LENGTH);
1691 static bool reportcpp = FALSE;
1692 int lineno = 0;
1693 char c;
1694 char *ol;
1695 cstring olc;
1696
1697 strcpy (l, yyt + 1);
1698
1699 /* Need to safe original l for deallocating. */
1700 ol = l;
1701
1702 l += strlen (yyt) - 1;
1703
1704 while ((c = char_fromInt (lminput ())) != '\n' && c != '\0')
1705 {
1706 *l++ = c;
1707 }
1708
1709 *l = '\0';
1710 olc = cstring_fromChars (ol);
1711
1712 if (cstring_equalPrefixLit (olc, "pragma"))
1713 {
1714 char *pname = mstring_create (longUnsigned_fromInt (MAX_PRAGMA_LEN));
1715 char *opname = pname;
1716 char *ptr = ol + 6; /* pragma is six characters, plus space */
1717 int len = 0;
1718
1719
1720 /* skip whitespace */
1721 while (((c = *ptr) != '\0') && isspace (c))
1722 {
1723 ptr++;
1724 }
1725
1726
1727 while (((c = *ptr) != '\0') && !isspace (c))
1728 {
1729 len++;
1730
1731 if (len > MAX_PRAGMA_LEN)
1732 {
1733 break;
1734 }
1735
1736 ptr++;
1737 *pname++ = c;
1738 }
1739
1740 *pname = '\0';
1741
1742 if (len == PRAGMA_LEN_EXPAND
1743 && mstring_equal (opname, PRAGMA_EXPAND))
1744 {
1745 cstring exname = cstring_undefined;
1746 uentry ue;
1747
1748 ptr++;
1749 while (((c = *ptr) != '\0') && !isspace (c))
1750 {
1751 exname = cstring_appendChar (exname, c);
1752 ptr++;
1753 }
1754
1755
1756 ue = usymtab_lookupExposeGlob (exname);
1757
1758 if (uentry_isExpandedMacro (ue))
1759 {
1760 if (fileloc_isPreproc (uentry_whereDefined (ue)))
1761 {
1762 fileloc_setColumn (g_currentloc, 1);
1763 uentry_setDefined (ue, g_currentloc);
1764 }
1765 }
1766
1767 cstring_free (exname);
1768 }
1769 }
1770 else if (cstring_equalPrefixLit (olc, "ident"))
1771 {
1772 /* Some pre-processors will leave these in the code. Ignore rest of line */
1773 }
1774 /*
1775 ** Yuk...Win32 filenames can have spaces in them...we need to read
1776 ** to the matching end quote.
1777 */
1778 else if ((sscanf (ol, "line %d \"", &lineno) == 1)
1779 || (sscanf (ol, " %d \"", &lineno) == 1))
1780 {
1781 char *tmp = ol;
1782 cstring fname;
1783 fileId fid;
1784
1785 /*@access cstring@*/
1786 while (*tmp != '\"' && *tmp != '\0')
1787 {
1788 tmp++;
1789 }
1790
1791 llassert (*tmp == '\"');
1792
1793 tmp++;
1794
1795 fname = tmp;
1796
1797 while (*tmp != '\"' && *tmp != '\0')
1798 {
1799 tmp++;
1800 }
1801
1802 llassert (*tmp == '\"');
1803
1804 *tmp = '\0';
1805
1806# if defined(OS2) || defined(MSDOS) || defined(WIN32)
1807
1808 /*
1809 ** DOS-like path delimiters get delivered in pairs, something like
1810 ** \"..\\\\file.h\", so we have to make it normal again. We do NOT
1811 ** remove the pre dirs yet as we usually specify tmp paths relative
1812 ** to the current directory, so tmp files would not get found in
1813 ** the hash table. If this method fails we try it again later.
1814 */
1815
1816 {
1817 char *stmp = fname;
1818
1819 /*
1820 ** Skip past the drive marker.
1821 */
1822
1823 if (strchr (stmp, ':') != NULL)
1824 {
1825 stmp = strchr (stmp, ':') + 1;
1826 }
1827
1828 while ((stmp = strchr (stmp, CONNECTCHAR)) != NULL )
1829 {
1830 if (*(stmp+1) == CONNECTCHAR)
1831 {
1832 memmove (stmp, stmp+1, strlen (stmp));
1833 }
1834
1835 stmp++;
1836 }
1837
1838 fid = fileTable_lookupBase (context_fileTable (), fname);
1839 if (!(fileId_isValid (fid)))
1840 {
1841 fname = removePreDirs (fname);
1842 fid = fileTable_lookupBase (context_fileTable (), fname);
1843 }
1844 }
1845# else /* !defined(OS2) && !defined(MSDOS) */
1846 fname = removePreDirs (fname);
1847 fid = fileTable_lookupBase (context_fileTable (), fname);
1848# endif /* !defined(OS2) && !defined(MSDOS) */
1849
1850 if (!(fileId_isValid (fid)))
1851 {
1852 if (context_inXHFile ())
1853 {
1854 fid = fileTable_addXHFile (context_fileTable (), fname);
1855 }
1856 else if (isHeaderFile (fname))
1857 {
1858 fid = fileTable_addHeaderFile (context_fileTable (), fname);
1859 }
1860 else
1861 {
1862 fid = fileTable_addFile (context_fileTable (), fname);
1863 }
1864 }
1865
1866 setFileLine (fid, lineno);
1867 /*@noaccess cstring@*/
1868 }
1869 else if ((sscanf (ol, "line %d", &lineno) == 1)
1870 || (sscanf (ol, " %d", &lineno) == 1))
1871 {
1872 setLine (lineno); /* next line is <cr> */
1873 }
1874 else
1875 {
1876 if (mstring_equal (ol, "")) {
1877 DPRINTF (("Empty pp command!"));
1878 /*
1879 ** evs 2000-05-16: This is a horrible kludge, to get around a bug (well, difficulty) in the pre-processor.
1880 ** We handle a plain # in the input file, by echoing it, and ignoring it in the post-pp-file.
1881 */
1882 mstring_free (ol);
1883 return FALSE;
1884 } else {
1885 if (!reportcpp)
1886 {
1887
1888 } else {
1889 llbug (message ("File contains preprocessor command: #%s",
1890 cstring_fromChars (ol)));
1891 reportcpp = TRUE;
1892 }
1893 }
1894
1895 sfree (ol);
1896 return TRUE;
1897 }
1898
1899 sfree (ol);
1900 return FALSE;
1901}
1902
1903static int handleLlSpecial ()
1904{
1905 bool hasnl = FALSE;
1906 int ic;
1907 char c;
1908 char *s = mstring_createEmpty ();
1909 char *os;
1910 int tok;
1911 int charsread = 0;
1912 fileloc loc;
1913
1914 loc = fileloc_copy (g_currentloc);
1915 DPRINTF (("Handle special: %s", fileloc_unparse (loc)));
1916
1917 while (((ic = ninput ()) != 0) && isalpha (ic))
1918 {
1919 c = (char) ic;
1920 s = mstring_append (s, c);
1921 charsread++;
1922 }
1923
1924 DPRINTF (("Read: %s / %s", s, fileloc_unparse (g_currentloc)));
1925 os = s;
1926
1927 if (charsread == 0 && ic == (int) AFTER_COMMENT_MARKER[0])
1928 {
1929 ic = ninput ();
1930
1931 llassert (ic == AFTER_COMMENT_MARKER[1]);
1932
1933 if (*s == '\0')
1934 {
1935 sfree (os);
1936 fileloc_free (loc);
1937 return QNOMODS; /* special token no modifications token */
1938 }
1939 }
1940
1941 DPRINTF (("Coment marker: %s", os));
1942 tok = commentMarkerToken (cstring_fromChars (os));
1943
1944 if (tok != BADTOK)
1945 {
1946 tokLength = charsread;
1947 sfree (os);
1948 inSpecPart = TRUE;
1949 fileloc_free (loc);
1950 return tok;
1951 }
1952
1953 DPRINTF (("Not a comment marker..."));
1954 /* Add rest of the comment */
1955
1956 if (ic != 0 && ic != EOF)
1957 {
1958 c = (char) ic;
1959
1960 s = mstring_append (s, c);
1961 charsread++;
1962
1963 while (((ic = ninput ()) != 0) && (ic != EOF)
1964 && (ic != AFTER_COMMENT_MARKER[0]))
1965 {
1966 c = (char) ic;
1967
1968 /* evans 2001-09-01 added to prevent assertion failures for uncloses syntactic comments */
1969
1970 if (c == '\n') {
1971 hasnl = TRUE; /* This prevents tokLength from being set later. */
1972 tokLength = 0;
1973
1974 voptgenerror
1975 (FLG_SYNTAX,
1976 message ("Likely parse error: syntactic comment token spans multiple lines: %s",
1977 cstring_fromChars (s)),
1978 g_currentloc);
1979 }
1980
1981 s = mstring_append (s, c);
1982 charsread++;
1983 }
1984 }
1985
1986 DPRINTF (("Read: %s / %s", s, fileloc_unparse (g_currentloc)));
1987
1988 if (ic == AFTER_COMMENT_MARKER[0])
1989 {
1990 int nc = ninput ();
1991 llassert ((char) nc == AFTER_COMMENT_MARKER[1]);
1992 charsread++;
1993 }
1994
1995 os = s;
1996
1997 while (*s == ' ' || *s == '\t' || *s == '\n')
1998 {
1999 s++;
2000 }
2001
2002 if (*s == '-' || *s == '+' || *s == '=') /* setting flags */
2003 {
2004 c = *s;
2005
2006 while (c == '-' || c == '+' || c == '=')
2007 {
2008 ynm set = ynm_fromCodeChar (c);
2009 cstring thisflag;
2010
2011 s++;
2012
2013 thisflag = cstring_fromChars (s);
2014
2015 while ((c = *s) != '\0' && (c != '-') && (c != '=')
2016 && (c != '+') && (c != ' ') && (c != '\t') && (c != '\n'))
2017 {
2018 s++;
2019 }
2020
2021 *s = '\0';
2022
2023 if (!context_getFlag (FLG_NOCOMMENTS))
2024 {
2025 cstring flagname = thisflag;
2026 flagcode fflag = identifyFlag (flagname);
2027
2028 if (flagcode_isSkip (fflag))
2029 {
2030 ;
2031 }
2032 else if (flagcode_isInvalid (fflag))
2033 {
2034 if (isMode (flagname))
2035 {
2036 if (ynm_isMaybe (set))
2037 {
2038 llerror
2039 (FLG_BADFLAG,
2040 message
2041 ("Semantic comment attempts to restore flag %s. "
2042 "A mode flag cannot be restored.",
2043 flagname));
2044 }
2045 else
2046 {
2047 context_setMode (flagname);
2048 }
2049 }
2050 else
2051 {
2052 voptgenerror
2053 (FLG_UNRECOGFLAGCOMMENTS,
2054 message ("Unrecognized option in semantic comment: %s",
2055 flagname),
2056 g_currentloc);
2057 }
2058 }
2059 else if (flagcode_isGlobalFlag (fflag))
2060 {
2061 voptgenerror
2062 (FLG_BADFLAG,
2063 message
2064 ("Semantic comment attempts to set global flag %s. "
2065 "A global flag cannot be set locally.",
2066 flagname),
2067 g_currentloc);
2068 }
2069 else
2070 {
2071 context_fileSetFlag (fflag, set);
2072
2073 if (flagcode_hasArgument (fflag))
2074 {
2075 if (ynm_isMaybe (set))
2076 {
2077 voptgenerror
2078 (FLG_BADFLAG,
2079 message
2080 ("Semantic comment attempts to restore flag %s. "
2081 "A flag for setting a value cannot be restored.",
2082 flagname),
2083 g_currentloc);
2084 }
2085 else
2086 { /* cut-and-pastied from llmain...blecch */
2087 cstring extra = cstring_undefined;
2088 char *rest;
2089 char *orest;
2090 char rchar;
2091
2092 *s = c;
2093 rest = mstring_copy (s);
2094 orest = rest;
2095 *s = '\0';
2096
2097 while ((rchar = *rest) != '\0'
2098 && (isspace (rchar)))
2099 {
2100 rest++;
2101 s++;
2102 }
2103
2104 while ((rchar = *rest) != '\0'
2105 && !isspace (rchar))
2106 {
2107 extra = cstring_appendChar (extra, rchar);
2108 rest++;
2109 s++;
2110 }
2111
2112 sfree (orest);
2113
2114 if (cstring_isUndefined (extra))
2115 {
2116 llerror
2117 (FLG_BADFLAG,
2118 message
2119 ("Flag %s (in semantic comment) must be followed by an argument",
2120 flagcode_unparse (fflag)));
2121 }
2122 else
2123 {
2124 s--;
2125
2126 if (flagcode_hasValue (fflag))
2127 {
2128 setValueFlag (fflag, extra);
2129 }
2130 else if (flagcode_hasString (fflag))
2131 {
2132 setStringFlag (fflag, extra);
2133 }
2134 else
2135 {
2136 BADEXIT;
2137 }
2138 }
2139 }
2140 }
2141 }
2142 }
2143 else
2144 {
2145 ;
2146 }
2147
2148 *s = c;
2149 while ((c == ' ') || (c == '\t') || (c == '\n'))
2150 {
2151 c = *(++s);
2152 }
2153 }
2154
2155 if (context_inHeader () && !isArtificial (cstring_fromChars (os)))
2156 {
2157 DPRINTF (("Here adding comment: %s", os));
2158 context_addComment (cstring_fromCharsNew (os));
2159 }
2160 else
2161 {
2162 ;
2163 }
2164 }
2165 else
2166 {
2167 char *t = s;
2168 int macrocode;
2169 char tchar = '\0';
2170 annotationInfo ainfo;
2171
2172 while (*s != '\0' && *s != ' ' && *s != '\t' && *s != '\n')
2173 {
2174 s++;
2175 }
2176
2177 if (*s != '\0')
2178 {
2179 tchar = *s;
2180 *s = '\0';
2181 s++;
2182 }
2183
2184 t = cstring_toCharsSafe (cstring_downcase (cstring_fromChars (t)));
2185 macrocode = tokenMacroCode (cstring_fromChars (t));
2186
2187 if (macrocode != BADTOK)
2188 {
2189 tokLength = hasnl ? 0 : mstring_length (t);
2190
2191 sfree (t);
2192 sfree (os);
2193 fileloc_free (loc);
2194
2195 if (macrocode == SKIPTOK)
2196 {
2197 return BADTOK;
2198 }
2199
2200 return macrocode;
2201 }
2202
2203 ainfo = context_lookupAnnotation (cstring_fromChars (os));
2204
2205 if (annotationInfo_isDefined (ainfo)) {
2206 DPRINTF (("Found annotation: %s", annotationInfo_unparse (ainfo)));
2207 /*@i324@*/ yylval.annotation = ainfo;
2208 tokLength = 0;
2209 sfree (os);
2210 sfree (t);
2211 fileloc_free (loc);
2212 return CANNOTATION;
2213 }
2214
2215 if (context_inHeader ())
2216 {
2217 if (tchar != '\0')
2218 {
2219 *(s-1) = tchar;
2220 }
2221
2222 if ((context_inMacro () || context_inGlobalContext ())
2223 && macrocode != SKIPTOK
2224 && !isArtificial (cstring_fromChars (os)))
2225 {
2226 DPRINTF (("Add comment: %s", os));
2227 context_addComment (cstring_fromCharsNew (os));
2228 }
2229 else
2230 {
2231 ;
2232 }
2233
2234 if (tchar != '\0')
2235 {
2236 *(s-1) = '\0';
2237 }
2238 }
2239
2240 if (mstring_equal (t, "ignore"))
2241 {
2242 if (!context_getFlag (FLG_NOCOMMENTS))
2243 {
2244 context_enterSuppressRegion ();
2245 }
2246 }
2247 else if ((*t == 'i' || *t == 't')
2248 && (*(t + 1) == '\0'))
2249 {
2250 if (!context_getFlag (FLG_NOCOMMENTS)
2251 && (*t == 'i' || context_getFlag (FLG_TMPCOMMENTS)))
2252 {
2253 context_enterSuppressLine (-1); /* infinite suppression */
2254 }
2255 }
2256 else if (((*t == 'i') || (*t == 't'))
2257 && ((*(t + 1) >= '0' && *(t + 1) <= '9')))
2258 {
2259 bool tmpcomment = (*t == 't');
2260 int val = -1;
2261 char *tt = t; /* don't mangle t, since it is free'd */
2262 char lc = *(++tt);
2263
2264 if (lc >= '0' && lc <= '9')
2265 {
2266 val = (int)(lc - '0');
2267
2268 lc = *(++tt);
2269 while (lc >= '0' && lc <= '9')
2270 {
2271 val *= 10;
2272 val += lc - '0';
2273 lc = *(++tt);
2274 }
2275 }
2276
2277
2278 if (!context_getFlag (FLG_NOCOMMENTS)
2279 && (!tmpcomment || context_getFlag (FLG_TMPCOMMENTS)))
2280 {
2281 context_enterSuppressLine (val);
2282 }
2283 }
2284 else if (mstring_equal (t, "end"))
2285 {
2286 if (!context_getFlag (FLG_NOCOMMENTS))
2287 {
2288 context_exitSuppressRegion ();
2289 }
2290 }
2291 else if (mstring_equal (t, "notfunction"))
2292 {
2293 ; /* handled by pcpp */
2294 }
2295 else if (mstring_equal (t, "access"))
2296 {
2297 cstring tname;
2298
2299 while (TRUE)
2300 {
2301 while ((c = *s) && (c == ' ' || c == '\t' || c == '\n'))
2302 {
2303 s++;
2304 }
2305
2306 if (c == '\0')
2307 {
2308 break;
2309 }
2310
2311 tname = cstring_fromChars (s);
2312
2313 while ((c = *s) != '\0' && c != ' '
2314 && c != '\t' && c != '\n' && c != ',')
2315 {
2316 s++;
2317 }
2318
2319 *s = '\0';
2320
2321 DPRINTF (("Access %s", tname));
2322
2323 if (!context_getFlag (FLG_NOCOMMENTS)
2324 && !context_getFlag (FLG_NOACCESS))
2325 {
2326 if (usymtab_existsType (tname))
2327 {
2328 typeId uid = usymtab_getTypeId (tname);
2329 uentry ue = usymtab_getTypeEntry (uid);
2330
2331 if (uentry_isAbstractDatatype (ue))
2332 {
2333 context_addFileAccessType (uid);
2334 DPRINTF (("Adding access to: %s / %d", tname, uid));
2335 }
2336 else
2337 {
2338 voptgenerror
2339 (FLG_COMMENTERROR,
2340 message
2341 ("Non-abstract type %s used in access comment",
2342 tname),
2343 g_currentloc);
2344 }
2345 }
2346 else
2347 {
2348 if (!(context_inSuppressRegion ()
2349 || context_inSuppressZone (g_currentloc)))
2350 {
2351 voptgenerror
2352 (FLG_COMMENTERROR,
2353 message
2354 ("Unrecognized type %s used in access comment",
2355 tname),
2356 g_currentloc);
2357 }
2358 }
2359 }
2360
2361 if (c != '\0')
2362 {
2363 s++;
2364 }
2365
2366 if (c != ',' && c != ' ')
2367 {
2368 break;
2369 }
2370 }
2371 }
2372 else if (mstring_equal (t, "noaccess"))
2373 {
2374 cstring tname;
2375 char lc;
2376
2377 while (TRUE)
2378 {
2379 while ((lc = *s) && (lc == ' ' || lc == '\t' || lc == '\n'))
2380 {
2381 s++;
2382 }
2383
2384 if (lc == '\0')
2385 {
2386 break;
2387 }
2388
2389 tname = cstring_fromChars (s);
2390
2391 while ((lc = *s) != '\0' && lc != ' ' && lc != '\t'
2392 && lc != '\n' && lc != ',')
2393 {
2394 s++;
2395 }
2396
2397 *s = '\0';
2398
2399 if (!context_getFlag (FLG_NOCOMMENTS)
2400 && !context_getFlag (FLG_NOACCESS))
2401 {
2402 if (usymtab_existsType (tname))
2403 {
2404 typeId tuid = usymtab_getTypeId (tname);
2405
2406 if (context_couldHaveAccess (tuid))
2407 {
2408 DPRINTF (("Removing access: %s", tname));
2409 context_removeFileAccessType (tuid);
2410 }
2411 else
2412 {
2413 if (!(context_inSuppressRegion ()
2414 || context_inSuppressZone (g_currentloc)))
2415 {
2416 uentry ue = usymtab_getTypeEntry (tuid);
2417
2418 if (uentry_isAbstractDatatype (ue))
2419 {
2420 voptgenerror
2421 (FLG_COMMENTERROR,
2422 message
2423 ("Non-accessible abstract type %s used in noaccess comment",
2424 tname),
2425 g_currentloc);
2426 }
2427 else
2428 {
2429 voptgenerror
2430 (FLG_COMMENTERROR,
2431 message
2432 ("Non-abstract type %s used in noaccess comment",
2433 tname),
2434 g_currentloc);
2435 }
2436 }
2437 }
2438 }
2439 else
2440 {
2441 if (!(context_inSuppressRegion ()
2442 || context_inSuppressZone (g_currentloc)))
2443 {
2444 voptgenerror
2445 (FLG_COMMENTERROR,
2446 message
2447 ("Unrecognized type %s used in noaccess comment",
2448 tname),
2449 g_currentloc);
2450 }
2451 }
2452 }
2453
2454 if (lc != '\0')
2455 {
2456 s++;
2457 }
2458
2459 if (lc != ',' && lc != ' ')
2460 {
2461 break;
2462 }
2463 }
2464 }
2465 else
2466 {
2467 voptgenerror (FLG_UNRECOGCOMMENTS,
2468 message ("Semantic comment unrecognized: %s",
2469 cstring_fromChars (os)), loc);
2470 }
2471
2472 sfree (t);
2473 }
2474
2475 sfree (os);
2476 fileloc_free (loc);
2477 return BADTOK;
2478}
2479
2480static /*@only@*/ cstring makeIdentifier (char *s)
2481{
2482 char *c = mstring_create (size_toInt (strlen (s)) + 1);
2483 cstring id = cstring_fromChars (c);
2484
2485 while (isalnum (*s) || (*s == '_') || (*s == '$'))
2486 {
2487 *c++ = *s++;
2488 }
2489
2490 *c = '\0';
2491 return (id);
2492}
2493
2494/*@observer@*/ /*@dependent@*/ uentry coerceId (cstring cn)
2495{
2496 if (!(usymtab_exists (cn)))
2497 {
2498 fileloc loc = fileloc_createExternal ();
2499
2500 /*
2501 ** We need to put this in a global scope, otherwise the sRef will be deallocated.
2502 */
2503
2504 uentry ce = uentry_makeUnrecognized (cn, loc);
2505
2506 if (!context_inIterEnd ())
2507 {
2508 voptgenerror
2509 (FLG_SYSTEMUNRECOG,
2510 message ("Unrecognized (possibly system) identifier: %q",
2511 uentry_getName (ce)),
2512 g_currentloc);
2513 }
2514
2515 return ce;
2516 }
2517
2518 return (usymtab_lookup (cn));
2519}
2520
2521/*
2522** like, coerceId, but doesn't supercede for iters
2523*/
2524
2525/*@observer@*/ uentry coerceIterId (cstring cn)
2526{
2527 if (!(usymtab_exists (cn)))
2528 {
2529 return uentry_undefined;
2530 }
2531
2532 return (usymtab_lookup (cn));
2533}
2534
2535/*@observer@*/ cstring LastIdentifier ()
2536{
2537 return (lastidprocessed);
2538}
2539
2540static int processIdentifier (cstring id)
2541{
2542 uentry le;
2543
2544 if (context_getFlag (FLG_GRAMMAR))
2545 {
2546 lldiagmsg (message ("Process identifier: %s", id));
2547 }
2548
2549 context_clearJustPopped ();
2550 lastidprocessed = id;
2551
2552 if (context_inFunctionHeader ())
2553 {
2554 int tok = commentMarkerToken (id);
2555 DPRINTF (("in function decl..."));
2556
2557 if (tok != BADTOK)
2558 {
2559 return tok;
2560 }
2561 else
2562 {
2563 tok = tokenMacroCode (id);
2564
2565 if (tok != BADTOK)
2566 {
2567 return tok;
2568 }
2569 else
2570 {
2571 annotationInfo ainfo;
2572
2573 if (expectingMetaStateName)
2574 {
2575 metaStateInfo msinfo = context_lookupMetaStateInfo (id);
2576
2577 if (metaStateInfo_isDefined (msinfo))
2578 {
2579 yylval.msinfo = msinfo;
2580 return METASTATE_NAME;
2581 }
2582 else
2583 {
2584 DPRINTF (("Not meta state name: %s", cstring_toCharsSafe (id)));
2585 }
2586 }
2587
2588 ainfo = context_lookupAnnotation (id);
2589
2590 if (annotationInfo_isDefined (ainfo))
2591 {
2592 DPRINTF (("Found annotation: %s", annotationInfo_unparse (ainfo)));
2593 /*@i324@*/ yylval.annotation = ainfo;
2594 return CANNOTATION;
2595 }
2596 else
2597 {
2598 DPRINTF (("Not annotation: %s", id));
2599 }
2600 }
2601 }
2602 }
2603
2604 /* Consider handling: Defined by C99 as static const char __func__[] */
2605
2606 if (context_getFlag (FLG_GNUEXTENSIONS))
2607 {
2608 int tok = BADTOK;
2609
2610 if (cstring_equalLit (id, "__stdcall")
2611 || cstring_equalLit (id, "__cdecl")
2612 || cstring_equalLit (id, "__extension__"))
2613 {
2614 return BADTOK;
2615 }
2616 else if (cstring_equalLit (id, "__volatile__"))
2617 {
2618 tok = QVOLATILE;
2619 }
2620 else if (cstring_equalLit (id, "__signed"))
2621 {
2622 tok = QSIGNED;
2623 }
2624 else if (cstring_equalLit (id, "__unsigned"))
2625 {
2626 tok = QUNSIGNED;
2627 }
2628 else if (cstring_equalLit (id, "__const__"))
2629 {
2630 tok = QCONST;
2631 }
2632 else if (cstring_equalLit (id, "__alignof__"))
2633 {
2634 tok = CALIGNOF; /* alignof is parsed like sizeof */
2635 }
2636 else if (cstring_equalLit (id, "__FUNCTION__")
2637 || cstring_equalLit (id, "__PRETTY_FUNCTION__"))
2638 {
2639 /* These tokens hold the name of the current function as strings */
2640 yylval.expr = exprNode_stringLiteral (id, fileloc_copy (g_currentloc));
2641 tokLength = 0;
2642 lastWasString = TRUE;
2643 tok = CCONSTANT;
2644 return tok;
2645 }
2646 else if (cstring_equalLit (id, "__attribute__")
2647 || cstring_equalLit (id, "__asm__")
2648 || cstring_equalLit (id, "_asm")
2649 || cstring_equalLit (id, "__asm")
2650 || cstring_equalLit (id, "__declspec"))
2651 {
2652 int depth = 0;
2653 bool useparens = FALSE;
2654 bool usebraces = FALSE;
2655 bool inquote = FALSE;
2656 bool inescape = FALSE;
2657 int ic;
2658
2659 while ((ic = input ()) != EOF)
2660 {
2661
2662 if (inescape)
2663 {
2664 inescape = FALSE;
2665 }
2666 else if (ic == '\\')
2667 {
2668 inescape = TRUE;
2669 }
2670 else if (ic == '\"')
2671 {
2672 inquote = !inquote;
2673 }
2674 else if (!inquote)
2675 {
2676 if (ic == '(')
2677 {
2678 if (!useparens)
2679 {
2680 if (!usebraces)
2681 {
2682 useparens = TRUE;
2683 }
2684 }
2685
2686 if (useparens)
2687 {
2688 depth++;
2689 }
2690 }
2691 else if (ic == '{')
2692 {
2693 if (!usebraces)
2694 {
2695 if (!useparens)
2696 {
2697 usebraces = TRUE;
2698 }
2699 }
2700
2701 if (usebraces)
2702 {
2703 depth++;
2704 }
2705 }
2706 else if (ic == ')' && useparens)
2707 {
2708 depth--;
2709 if (depth == 0) break;
2710 }
2711 else if (ic == '}' && usebraces)
2712 {
2713 depth--;
2714 if (depth == 0) break;
2715 }
2716 else if (ic == '}'
2717 && !usebraces && !useparens
2718 && cstring_equalLit (id, "__asm"))
2719 {
2720 /*
2721 ** We need this because some MS VC++ include files
2722 ** have __asm mov ... }
2723 ** Its a kludge, but otherwise would need to parse
2724 ** the asm code!
2725 */
2726 return TRBRACE;
2727 }
2728 }
2729
2730 if (ic == '\n')
2731 {
2732 context_incLineno ();
2733
2734 if (cstring_equalLit (id, "__asm")
2735 && !useparens && !usebraces)
2736 {
2737 break;
2738 }
2739 }
2740 }
2741
2742 llassert ((useparens && ic == ')')
2743 || (usebraces && ic == '}')
2744 || (!useparens && !usebraces));
2745
2746 return BADTOK;
2747 }
2748 else if (cstring_equalLit (id, "inline")
2749 || cstring_equalLit (id, "__inline")
2750 || cstring_equalLit (id, "_inline")
2751 || cstring_equalLit (id, "__inline__"))
2752 {
2753 tok = QINLINE;
2754 }
2755
2756 if (tok != BADTOK)
2757 {
2758 RETURN_TOK (tok);
2759 }
2760 }
2761
2762 le = usymtab_lookupSafe (id);
2763
2764 /*@-dependenttrans@*/
2765
2766 if (uentry_isIter (le))
2767 {
2768 /*@i32@*/ yylval.entry = le;
2769 return (ITER_NAME);
2770 }
2771 else if (uentry_isEndIter (le))
2772 {
2773 /*@i32@*/ yylval.entry = le;
2774 return (ITER_ENDNAME);
2775 }
2776 else if (uentry_isUndefined (le))
2777 {
2778 yylval.cname = id;
2779
2780 /* avoid parse errors for certain system built ins */
2781
2782 if (g_expectingTypeName && (cstring_firstChar (id) == '_')
2783 && (cstring_secondChar (id) == '_'))
2784 {
2785 return (TYPE_NAME_OR_ID);
2786 }
2787
2788 return (NEW_IDENTIFIER);
2789 }
2790 else if (!uentry_isDeclared (le) && !uentry_isCodeDefined (le))
2791 {
2792 if (uentry_isDatatype (le))
2793 {
2794 yylval.cname = id;
2795 return (NEW_IDENTIFIER);
2796 }
2797 else
2798 {
2799 /*@i32@*/ yylval.entry = le;
2800 return (IDENTIFIER);
2801 }
2802 }
2803 else if (uentry_isDatatype (le))
2804 {
2805 if (!g_expectingTypeName)
2806 {
2807 yylval.cname = id;
2808
2809 return (NEW_IDENTIFIER);
2810 }
2811 else
2812 {
2813 yylval.ctyp = uentry_getAbstractType (le);
2814
2815 uentry_setUsed (le, g_currentloc);
2816 return (TYPE_NAME);
2817 }
2818 }
2819 else
2820 {
2821 /*@i32@*/ yylval.entry = le;
2822 return (IDENTIFIER);
2823 }
2824
2825 /*@=dependenttrans@*/
2826}
2827
2828static bool processHashIdentifier (/*@only@*/ cstring id)
2829{
2830 if (context_inMacro () || context_inIterDef () ||
2831 context_inIterEnd ())
2832 {
2833 uentry le;
2834
2835 context_clearJustPopped ();
2836
2837 lastidprocessed = id;
2838 le = usymtab_lookupSafe (id);
2839
2840 if (uentry_isParam (le) || uentry_isRefParam (le))
2841 {
2842 return TRUE;
2843 }
2844 else
2845 {
2846 return FALSE;
2847 }
2848 }
2849 else
2850 {
2851 cstring_free (id);
2852 return FALSE;
2853 }
2854}
2855
2856
2857static /*@only@*/ exprNode processString ()
2858{
2859 exprNode res;
2860 fileloc loc;
2861 char *nl = strchr (yytext, '\n');
2862 cstring ns = cstring_fromCharsNew (yytext);
2863
2864 if (nl == NULL)
2865 {
2866 loc = fileloc_copy (g_currentloc);
2867 addColumn (cstring_length (ns));
2868 }
2869 else
2870 {
2871 char *lastnl = nl;
2872
2873 loc = fileloc_copy (g_currentloc);
2874
2875 context_incLineno ();
2876
2877 while ((nl = strchr ((nl + 1), '\n')) != NULL)
2878 {
2879 context_incLineno ();
2880 lastnl = nl;
2881 }
2882 }
2883
2884
2885 res = exprNode_stringLiteral (ns, loc);
2886 return (res);
2887}
2888
2889static
2890char processChar ()
2891{
2892 char fchar;
2893 char next;
2894
2895 llassert (*yytext != '\0');
2896 fchar = *(yytext + 1);
2897 if (fchar != '\\') return fchar;
2898
2899 next = *(yytext + 2);
2900
2901 switch (next)
2902 {
2903 case 'n': return '\n';
2904 case 't': return '\t';
2905 case '\"': return '\"';
2906 case '\'': return '\'';
2907 case '\\': return '\\';
2908 default: return '\0';
2909 }
2910}
2911
2912static
2913double processFloat ()
2914{
2915 double ret = atof (yytext);
2916
2917 return (ret);
2918}
2919
2920static
2921long processHex ()
2922{
2923 int index = 2;
2924 long val = 0;
2925
2926 llassert (yytext[0] == '0'
2927 && (yytext[1] == 'X' || yytext[1] == 'x'));
2928
2929 while (yytext[index] != '\0') {
2930 int tval;
2931 char c = yytext[index];
2932
2933 if (c >= '0' && c <= '9') {
2934 tval = (int) c - (int) '0';
2935 } else if (c >= 'A' && c <= 'F') {
2936 tval = (int) c - (int) 'A' + 10;
2937 } else if (c >= 'a' && c <= 'f') {
2938 tval = (int) c - (int) 'a' + 10;
2939 } else if (c == 'U' || c == 'L' || c == 'u' || c == 'l') {
2940 index++;
2941 while (yytext[index] != '\0') {
2942 if (c == 'U' || c == 'L' || c == 'u' || c == 'l') {
2943 ;
2944 } else {
2945 voptgenerror
2946 (FLG_SYNTAX,
2947 message ("Invalid character (%c) following specifier in hex constant: %s",
2948 c, cstring_fromChars (yytext)),
2949 g_currentloc);
2950 }
2951 index++;
2952 }
2953
2954 break;
2955 } else {
2956 voptgenerror
2957 (FLG_SYNTAX,
2958 message ("Invalid character (%c) in hex constant: %s",
2959 c, cstring_fromChars (yytext)),
2960 g_currentloc);
2961 break;
2962 }
2963
2964 val = (val * 16) + tval;
2965 index++;
2966 }
2967
2968 DPRINTF (("Hex constant: %s = %ld", yytext, val));
2969 return val;
2970}
2971
2972static
2973long processOctal ()
2974{
2975 int index = 1;
2976 long val = 0;
2977
2978 llassert (yytext[0] == '0' && yytext[1] != 'X' && yytext[1] != 'x');
2979
2980 while (yytext[index] != '\0') {
2981 int tval;
2982 char c = yytext[index];
2983
2984 if (c >= '0' && c <= '7') {
2985 tval = (int) c - (int) '0';
2986 } else {
2987 voptgenerror
2988 (FLG_SYNTAX,
2989 message ("Invalid character (%c) in octal constant: %s",
2990 c, cstring_fromChars (yytext)),
2991 g_currentloc);
2992 break;
2993 }
2994
2995 val = (val * 8) + tval;
2996 index++;
2997 }
2998
2999 DPRINTF (("Octal constant: %s = %ld", yytext, val));
3000 return val;
3001}
3002
3003static
3004long processDec ()
3005{
3006 return (atol (yytext));
3007}
3008
3009static int
3010processSpec (int tok)
3011{
3012 size_t length = strlen (yytext);
3013
3014 if (inSpecPart)
3015 {
3016 setTokLengthT (length);
3017 RETURN_TOK (tok);
3018 }
3019 else
3020 {
3021
3022 context_saveLocation ();
3023 setTokLengthT (length);
3024 return (processIdentifier (makeIdentifier (yytext)));
3025 }
3026}
3027
3028void cscanner_expectingMetaStateName ()
3029{
3030 llassert (!expectingMetaStateName);
3031 llassert (context_inFunctionHeader ());
3032 expectingMetaStateName = TRUE;
3033}
3034
3035void cscanner_clearExpectingMetaStateName ()
3036{
3037 llassert (expectingMetaStateName);
3038 expectingMetaStateName = FALSE;
3039}
git-cvsimport mirror of splint
This page took 0.44995 seconds and 5 git commands to generate.