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Updated README version number. (Testing sourceforge)
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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4** Unpublished rights reserved under the copyright laws of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 {
a469ccf0 507 DPRINTF (("Here we are: %s", context_unparse ()));
508
ac0860d8 509 if (context_inIterDef ())
510 {
511 RETURN_TOK (LLMACROITER);
512 }
513 if (context_inIterEnd ())
514 {
515 RETURN_TOK (LLMACROEND);
516 }
517 if (context_inMacro ())
518 {
519 RETURN_TOK (LLMACRO);
520 }
521 }
522 }
523 }
524"@.CT" { setTokLength (4); lldiagmsg (ctype_unparseTable ()); }
525"@.FA" { setTokLength (4); lldiagmsg (message ("Access types: %q", typeIdSet_unparse (context_fileAccessTypes ()))); }
526"@.F" { setTokLength (3);
527 lldiagmsg (message ("%q: *** marker ***", fileloc_unparse (g_currentloc)));
528 }
529"@.L" { setTokLength (3); usymtab_printLocal (); }
530"@.A" { setTokLength (3); lldiagmsg (usymtab_unparseAliases ()); }
531"@.C" { setTokLength (3); lldiagmsg (context_unparse ()); }
532"@.W" { setTokLength (3); lldiagmsg (context_unparseClauses ()); }
533"@.G" { setTokLength (3); usymtab_printGuards (); }
534"@.S" { setTokLength (3); usymtab_printOut (); }
535"@.X" { setTokLength (3); usymtab_printAll (); }
536"@.Z" { setTokLength (3); usymtab_printComplete (); }
537"@.T" { setTokLength (3); usymtab_printTypes (); }
538"@.K" { setTokLength (3); lldiagmsg (usymtab_unparseStack ()); }
539"@.M" { setTokLength (3);
540 lldiagmsg (message ("Can modify: %q",
541 sRefSet_unparse (context_modList ())));
542 }
543"%{" { /* BEFORE_COMMENT_MARKER */
544 int tok;
545 incColumn (); incColumn ();
546 tok = handleLlSpecial ();
547
548 if (tok != BADTOK)
549 {
550 if (tok == CANNOTATION) {
551 return (tok);
552 } else {
553 /* Beware - this bashes yylval! */
554 RETURN_TOK (tok);
555 }
556 }
557 }
558"%}" { /* AFTER_COMMENT_MARKER */
559 setTokLength (2);
560 inSpecPart = FALSE;
561 RETURN_TOK (QENDMACRO); }
562"\\" { incColumn (); continueLine = TRUE; }
563. { incColumn ();
564 if ((int) *yytext == 13 ) {
565 ;
566 } else {
567 voptgenerror
568 (FLG_SYNTAX,
569 message ("Invalid character (ascii: %d), skipping character",
570 (int)(*yytext)),
571 g_currentloc);
572 }
573 }
574%%
575
576struct skeyword
577{
578 /*@null@*/ /*@observer@*/ char *name;
579 int token;
580} ;
581
582/*
583** These tokens are followed by syntax that is parsed by the
584** grammar proper.
585*/
586
587struct skeyword s_parsetable[] = {
588 { "modifies", QMODIFIES } ,
589 { "globals", QGLOBALS } ,
590 { "alt", QALT } ,
591 { "warn", QWARN } ,
592 { "constant", QCONSTANT } ,
593 { "function", QFUNCTION } ,
594 { "iter", QITER } ,
595 { "defines", QDEFINES } ,
596 { "uses", QUSES } ,
597 { "allocates", QALLOCATES } ,
598 { "sets", QSETS } ,
599 { "releases", QRELEASES } ,
600 { "pre", QPRECLAUSE } ,
601 { "post", QPOSTCLAUSE } ,
602 { "setBufferSize", QSETBUFFERSIZE},
603 { "setStringLength", QSETSTRINGLENGTH},
604 { "testinRange", QTESTINRANGE},
605 { "requires", QPRECLAUSE } ,
606 { "ensures", QPOSTCLAUSE } ,
607 { NULL, BADTOK }
608} ;
609
610/*
611** These tokens are either stand-alone tokens, or followed by
612** token-specific text.
613*/
614
615struct skeyword s_keytable[] = {
616 { "anytype", QANYTYPE } ,
617 { "integraltype", QINTEGRALTYPE } ,
618 { "unsignedintegraltype", QUNSIGNEDINTEGRALTYPE } ,
619 { "signedintegraltype", QSIGNEDINTEGRALTYPE } ,
620 { "out", QOUT } ,
621 { "in", QIN } ,
622 { "only", QONLY } ,
623 { "owned", QOWNED } ,
624 { "dependent", QDEPENDENT } ,
625 { "partial", QPARTIAL } ,
626 { "special", QSPECIAL } ,
627 { "truenull", QTRUENULL } ,
628 { "falsenull", QFALSENULL } ,
629 { "keep", QKEEP } ,
630 { "kept", QKEPT } ,
631 { "notnull", QNOTNULL } ,
632 { "abstract", QABSTRACT } ,
633 { "concrete", QCONCRETE } ,
634 { "mutable", QMUTABLE } ,
635 { "immutable", QIMMUTABLE } ,
636 { "unused", QUNUSED } ,
637 { "external", QEXTERNAL } ,
638 { "sef", QSEF } ,
639 { "unique", QUNIQUE } ,
640 { "returned", QRETURNED } ,
641 { "exposed", QEXPOSED } ,
642 { "refcounted", QREFCOUNTED } ,
643 { "refs", QREFS } ,
644 { "newref", QNEWREF } ,
645 { "tempref", QTEMPREF } ,
646 { "killref", QKILLREF } ,
647 { "null", QNULL } ,
648 { "relnull", QRELNULL } ,
649 { "nullterminated", QNULLTERMINATED },
650 { "setBufferSize", QSETBUFFERSIZE },
651 { "testInRange", QTESTINRANGE},
652 { "MaxSet", QMAXSET},
653 { "MaxRead", QMAXREAD},
654 { "reldef", QRELDEF } ,
655 { "observer", QOBSERVER } ,
656 { "exits", QEXITS } ,
657 { "mayexit", QMAYEXIT } ,
658 { "trueexit", QTRUEEXIT } ,
659 { "falseexit", QFALSEEXIT } ,
660 { "neverexit", QNEVEREXIT } ,
661 { "temp", QTEMP } ,
662 { "shared", QSHARED } ,
663 { "ref", QREF } ,
664 { "unchecked", QUNCHECKED } ,
665 { "checked", QCHECKED } ,
666 { "checkmod", QCHECKMOD } ,
667 { "checkedstrict", QCHECKEDSTRICT } ,
668 { "innercontinue", QINNERCONTINUE } ,
669 { "innerbreak", QINNERBREAK } ,
670 { "loopbreak", QLOOPBREAK } ,
671 { "switchbreak", QSWITCHBREAK } ,
672 { "safebreak", QSAFEBREAK } ,
673 { "fallthrough", QFALLTHROUGH } ,
674 { "l_fallthrou", QLINTFALLTHROUGH } ,
675 { "l_fallth", QLINTFALLTHRU } ,
676 { "notreached", QNOTREACHED } ,
677 { "l_notreach", QLINTNOTREACHED } ,
678 { "printflike", QPRINTFLIKE } ,
679 { "l_printfli", QLINTPRINTFLIKE } ,
680 { "scanflike", QSCANFLIKE } ,
681 { "messagelike", QMESSAGELIKE } ,
682 { "l_argsus", QARGSUSED } ,
683 { NULL, BADTOK }
684} ;
685
686/*
687** would be better if these weren't hard coded...
688*/
689
690static bool isArtificial (cstring s)
691{
692 return (cstring_equalLit (s, "modifies")
693 || cstring_equalLit (s, "globals")
694 || cstring_equalLit (s, "warn")
695 || cstring_equalLit (s, "alt"));
696}
697
698void swallowMacro (void)
699{
700 int i;
701 bool skipnext = FALSE;
702
703 while ((i = lminput ()) != EOF)
704 {
705 char c = (char) i;
706
707
708 if (c == '\\')
709 {
710 skipnext = TRUE;
711 }
712 else if (c == '\n')
713 {
714 if (skipnext)
715 {
716 skipnext = FALSE;
717 }
718 else
719 {
720 reader_checkUngetc (i, yyin);
721 return;
722 }
723 }
724 }
725
726 if (i != EOF)
727 {
728 reader_checkUngetc (i, yyin);
729 }
730}
731
732static int commentMarkerToken (cstring s)
733{
734 int i = 0;
735
736 while (s_parsetable[i].name != NULL)
737 {
738 DPRINTF (("Try :%s:%s:", s, s_parsetable[i].name));
739
740 if (cstring_equalLit (s, s_parsetable[i].name))
741 {
742 return s_parsetable[i].token;
743 }
744
745 i++;
746 }
747
748 return BADTOK;
749}
750
751static int tokenMacroCode (cstring s)
752{
753 int i = 0;
754
755 while (s_keytable[i].name != NULL)
756 {
757 if (cstring_equalLit (s, s_keytable[i].name))
758 {
759 if (s_keytable[i].token == QLINTFALLTHROUGH)
760 {
761 voptgenerror
762 (FLG_WARNLINTCOMMENTS,
763 cstring_makeLiteral
764 ("Traditional lint comment /*FALLTHROUGH*/ used. "
765 "This is interpreted by "
766 "LCLint in the same way as most Unix lints, but it is "
767 "preferable to replace it with the /*@fallthrough@*/ "
768 "semantic comment"),
769 g_currentloc);
770 return QFALLTHROUGH;
771 }
772 else if (s_keytable[i].token == QLINTFALLTHRU)
773 {
774 voptgenerror
775 (FLG_WARNLINTCOMMENTS,
776 cstring_makeLiteral
777 ("Traditional lint comment /*FALLTHRU*/ used. "
778 "This is interpreted by "
779 "LCLint in the same way as most Unix lints, but it is "
780 "preferable to replace it with the /*@fallthrough@*/ "
781 "semantic comment"),
782 g_currentloc);
783 return QFALLTHROUGH;
784 }
785 else if (s_keytable[i].token == QLINTNOTREACHED)
786 {
787 voptgenerror
788 (FLG_WARNLINTCOMMENTS,
789 cstring_makeLiteral
790 ("Traditional lint comment /*NOTREACHED*/ used. "
791 "This is interpreted by "
792 "LCLint in the same way as most Unix lints, but it is "
793 "preferable to replace it with the /*@notreached@*/ "
794 "semantic comment."),
795 g_currentloc);
796
797 return QNOTREACHED;
798 }
799 else if (s_keytable[i].token == QPRINTFLIKE)
800 {
801 setSpecialFunction (qual_createPrintfLike ());
802 return SKIPTOK;
803 }
804 else if (s_keytable[i].token == QLINTPRINTFLIKE)
805 {
806 voptgenerror
807 (FLG_WARNLINTCOMMENTS,
808 cstring_makeLiteral
809 ("Traditional lint comment /*PRINTFLIKE*/ used. "
810 "This is interpreted by "
811 "LCLint in the same way as most Unix lints, but it is "
812 "preferable to replace it with either /*@printflike@*/, "
813 "/*@scanflike@*/ or /*@messagelike@*/."),
814 g_currentloc);
815
816 setSpecialFunction (qual_createPrintfLike ());
817 return SKIPTOK;
818 }
819 else if (s_keytable[i].token == QSCANFLIKE)
820 {
821 setSpecialFunction (qual_createScanfLike ());
822 return SKIPTOK;
823 }
824 else if (s_keytable[i].token == QMESSAGELIKE)
825 {
826 setSpecialFunction (qual_createMessageLike ());
827 return SKIPTOK;
828 }
829 else if (s_keytable[i].token == QARGSUSED)
830 {
831 voptgenerror
832 (FLG_WARNLINTCOMMENTS,
833 cstring_makeLiteral
834 ("Traditional lint comment /*ARGSUSED*/ used. "
835 "This is interpreted by "
836 "LCLint in the same way as most Unix lints, but it is "
837 "preferable to use /*@unused@*/ annotations on "
838 "the unused parameters."),
839 g_currentloc);
840
841 setArgsUsed ();
842 return SKIPTOK;
843 }
844
845 return s_keytable[i].token;
846 }
847
848 i++;
849 }
850
851 return BADTOK;
852}
853
854static int lminput ()
855{
856 if (savechar == '\0')
857 {
858 incColumn ();
859 return (input ());
860 }
861 else
862 {
863 int save = (int) savechar;
864 savechar = '\0';
865 return save;
866 }
867}
868
869static void lmsavechar (char c)
870{
871 if (savechar == '\0') savechar = c;
872 else
873 {
874 llbuglit ("lmsavechar: override");
875 }
876}
877
878static int returnFloat (ctype ct, double f)
879{
880 yylval.expr = exprNode_floatLiteral (f, ct, cstring_fromChars (yytext),
881 fileloc_decColumn (g_currentloc, tokLength));
882 tokLength = 0;
883 return (CCONSTANT);
884}
885
886static int returnInt (ctype ct, long i)
887{
888 ctype c = ct;
889
890 if (ctype_equal (ct, ctype_int))
891 {
892 if (i == 0)
893 {
894 c = context_typeofZero ();
895 }
896 else if (i == 1)
897 {
898 c = context_typeofOne ();
899 }
900 }
901
902 yylval.expr = exprNode_numLiteral (c, cstring_fromChars (yytext),
903 fileloc_decColumn (g_currentloc, tokLength), i);
904 tokLength = 0;
905 return (CCONSTANT);
906}
907
908static int returnChar (char c)
909{
910 yylval.expr = exprNode_charLiteral (c, cstring_fromChars (yytext),
911 fileloc_decColumn (g_currentloc, tokLength));
912 tokLength = 0;
913 return (CCONSTANT);
914}
915
916static int ninput ()
917{
918 int c = lminput ();
919
920 if (c != EOF && ((char)c == '\n'))
921 {
922 context_incLineno ();
923 }
924
925 return c;
926}
927
928static char macro_nextChar ()
929{
930 static bool in_quote = FALSE, in_escape = FALSE, in_char = FALSE;
931 int ic;
932 char c;
933
934 ic = lminput ();
935 c = char_fromInt (ic);
936
937 if (!in_quote && !in_char && (c == '\\' || c == BEFORE_COMMENT_MARKER[0]))
938 {
939 if (c == '\\')
940 {
941 while ((c = char_fromInt (lminput ())) != '\0' && c != '\n')
942 {
943 ; /* skip to newline */
944 }
945
946 context_incLineno ();
947
948 if (c != '\0')
949 {
950 return macro_nextChar ();
951 }
952 else
953 {
954 return c;
955 }
956 }
957 else /* if (c == '@') */
958 {
959 llassert (FALSE); /*@i23@*/
960 if (handleLlSpecial () != BADTOK)
961 {
962 llerrorlit (FLG_SYNTAX, "Macro cannot use special syntax");
963 }
964
965 return macro_nextChar ();
966 }
967 }
968 else if (!in_escape && c == '\"')
969 {
970 in_quote = !in_quote;
971 }
972 else if (!in_escape && c == '\'')
973 {
974 in_char = !in_char;
975 }
976 else if ((in_quote || in_char) && c == '\\')
977 {
978 in_escape = !in_escape;
979 }
980 else if ((in_quote || in_char) && in_escape)
981 {
982 in_escape = FALSE;
983 }
984 else if (!in_quote && c == '/')
985 {
986 char c2;
987
988 if ((c2 = char_fromInt (lminput ())) == '*')
989 {
990 while (c2 != '\0')
991 {
992 while ((c2 = char_fromInt (lminput ())) != '\0'
993 && c2 != '\n' && c2 != '*')
994 {
995 ;
996 }
997
998 if (c2 == '*')
999 {
1000 while ((c2 = char_fromInt (lminput ())) != '\0'
1001 && c2 == '*')
1002 {
1003 ;
1004 }
1005
1006 if (c2 == '/')
1007 {
1008 goto outofcomment;
1009 }
1010 }
1011 else
1012 {
1013 llfatalerror (cstring_makeLiteral ("Macro: bad comment!"));
1014 }
1015 }
1016 outofcomment:
1017 return macro_nextChar ();
1018 }
1019 else
1020 {
1021 /*** putchar does not work! why? puts to stdio...??! ***/
1022 lmsavechar (c2);
1023 }
1024 }
1025 return c;
1026}
1027
1028/*
1029** keeps semantic comments
1030*/
1031
1032static char macro_nextCharC ()
1033{
1034 static bool in_quote = FALSE, in_escape = FALSE, in_char = FALSE;
1035 char c;
1036
1037 c = char_fromInt (lminput ());
1038
1039 if (!in_quote && !in_char && c == '\\')
1040 {
1041 while ((c = char_fromInt (lminput ())) != '\0' && c != '\n')
1042 {
1043 ; /* skip to newline */
1044 }
1045
1046 context_incLineno ();
1047
1048 if (c != '\0')
1049 {
1050 return macro_nextCharC ();
1051 }
1052 else
1053 {
1054 return c;
1055 }
1056 }
1057 else if (!in_escape && c == '\"')
1058 {
1059 in_quote = !in_quote;
1060 }
1061 else if (!in_escape && c == '\'')
1062 {
1063 in_char = !in_char;
1064 }
1065 else if ((in_quote || in_char) && c == '\\')
1066 {
1067 in_escape = !in_escape;
1068 }
1069 else if ((in_quote || in_char) && in_escape)
1070 {
1071 in_escape = FALSE;
1072 }
1073 else if (!in_quote && c == '/')
1074 {
1075 char c2;
1076
1077 if ((c2 = char_fromInt (lminput ())) == '*')
1078 {
1079 while (c2 != '\0')
1080 {
1081 while ((c2 = char_fromInt (lminput ())) != '\0'
1082 && c2 != '\n' && c2 != '*')
1083 {
1084 ;
1085 }
1086
1087 if (c2 == '*')
1088 {
1089 while ((c2 = char_fromInt (lminput ())) != '\0'
1090 && c2 == '*')
1091 {
1092 ;
1093 }
1094
1095 if (c2 == '/')
1096 {
1097 goto outofcomment;
1098 }
1099 }
1100 else
1101 {
1102 llfatalerror (cstring_makeLiteral ("Macro: bad comment!"));
1103 }
1104 }
1105 outofcomment:
1106 return macro_nextCharC ();
1107 }
1108 else
1109 {
1110 lmsavechar (c2);
1111 }
1112 }
1113 return c;
1114}
1115
1116/*
1117** skips whitespace (handles line continuations)
1118** returns first non-whitespace character
1119*/
1120
1121static char skip_whitespace ()
1122{
1123 char c;
1124
1125 while ((c = macro_nextChar ()) == ' ' || c == '\t')
1126 {
1127 ;
1128 }
1129
1130 return c;
1131}
1132
1133static void handleMacro ()
1134{
1135 cstring mac = cstring_undefined;
1136 int macrocode;
1137 char c;
1138
1139 while (currentColumn () > 2)
1140 {
1141 mac = cstring_appendChar (mac, ' ');
1142 setTokLength (-1);
1143 }
1144
1145 c = macro_nextCharC ();
1146
1147 if (c >= '0' && c <= '9')
1148 {
1149 int i;
1150
1151 for (i = 0; i < ((c - '0') + 1); i++)
1152 {
1153 mac = cstring_appendChar (mac, ' ');
1154 }
1155 }
1156 else
1157 {
1158 BADBRANCH;
1159 }
1160
1161 while (((c = macro_nextCharC ()) != '\0') && (c != '\n'))
1162 {
1163 mac = cstring_appendChar (mac, c);
1164 }
1165
1166
1167 macrocode = tokenMacroCode (mac);
1168
1169 if (macrocode == BADTOK && !isArtificial (mac))
1170 {
1171 context_addMacroCache (mac);
1172 }
1173 else
1174 {
1175 cstring_free (mac);
1176 }
1177
1178 if (c == '\n')
1179 {
1180 context_incLineno ();
1181 }
1182}
1183
1184static bool processMacro (void)
1185{
1186 uentry e2;
1187 ctype ct;
1188 int noparams = 0;
1189 cstring fname = cstring_undefined;
1190 bool res = TRUE;
1191 bool isspecfcn = FALSE;
1192 bool isiter = FALSE;
1193 bool skipparam = FALSE;
1194 bool isenditer = FALSE;
1195 bool unknownm = FALSE;
1196 bool hasParams = FALSE;
1197 bool emptyMacro = FALSE;
1198 char c = skip_whitespace ();
1199 fileloc loc = fileloc_noColumn (g_currentloc);
1200
1201 /* are both of these necessary? what do they mean? */
1202 uentryList specparams = uentryList_undefined;
1203 uentryList pn = uentryList_undefined;
1204
1205 context_resetMacroMissingParams ();
1206
1207 if (c == '\0' || c == '\n')
1208 {
1209 llcontbug (cstring_makeLiteral ("Bad macro"));
1210 fileloc_free (loc);
1211 return FALSE;
1212 }
1213
1214 fname = cstring_appendChar (fname, c);
1215
1216 while ((c = macro_nextChar ()) != '(' && c != '\0'
1217 && c != ' ' && c != '\t' && c != '\n')
1218 {
1219 fname = cstring_appendChar (fname, c);
1220 }
1221
1222 if (c == ' ' || c == '\t' || c == '\n')
1223 {
1224 char oldc = c;
1225
1226 if (c != '\n')
1227 {
1228 while (c == ' ' || c == '\t')
1229 {
1230 c = macro_nextChar ();
1231 }
1232 unput (c);
1233 }
1234
1235 if (c == '\n')
1236 {
1237 emptyMacro = TRUE;
1238 unput (c);
1239 }
1240
1241 c = oldc;
1242 }
1243
1244 hasParams = (c == '(');
1245
1246 if (usymtab_exists (fname))
1247 {
1248 e2 = usymtab_lookupExpose (fname);
1249 ct = uentry_getType (e2);
1250
1251 if (uentry_isCodeDefined (e2)
1252 && fileloc_isUser (uentry_whereDefined (e2)))
1253 {
1254 if (optgenerror
1255 (FLG_MACROREDEF,
1256 message ("Macro %s already defined", fname),
1257 loc))
1258 {
1259 uentry_showWhereDefined (e2);
1260 uentry_clearDefined (e2);
1261 }
1262
1263 if (uentry_isFunction (e2))
1264 {
1265 uentry_setType (e2, ctype_unknown);
1266 ct = ctype_unknown;
1267 unknownm = TRUE;
1268 context_enterUnknownMacro (e2);
1269 }
1270 else
1271 {
1272 context_enterConstantMacro (e2);
1273 }
1274 }
1275 else
1276 {
1277 if (uentry_isForward (e2) && uentry_isFunction (e2))
1278 {
1279 unknownm = TRUE;
1280
1281 voptgenerror
1282 (FLG_MACROFCNDECL,
1283 message
1284 ("Parameterized macro has no prototype or specification: %s ",
1285 fname),
1286 loc);
1287
1288 ct = ctype_unknown;
1289 uentry_setType (e2, ctype_unknown);
1290 uentry_setFunctionDefined (e2, loc);
1291 uentry_setUsed (e2, fileloc_undefined);
1292 context_enterUnknownMacro (e2);
1293 }
1294 else
1295 {
1296 if (uentry_isIter (e2))
1297 {
1298 isiter = TRUE;
1299 specparams = uentry_getParams (e2);
1300 noparams = uentryList_size (specparams);
1301 uentry_setDefined (e2, loc);
1302 context_enterIterDef (e2);
1303 }
1304 else if (uentry_isEndIter (e2))
1305 {
1306 isenditer = TRUE;
1307 uentry_setDefined (e2, loc);
1308 context_enterIterEnd (e2); /* don't care about it now */
1309 /* but should parse like an iter! */
1310 }
1311 else if (uentry_isConstant (e2))
1312 {
1313 if (hasParams)
1314 {
1315 voptgenerror
1316 (FLG_INCONDEFS,
1317 message ("Constant %s implemented as parameterized macro",
1318 fname),
1319 g_currentloc);
1320
1321 uentry_showWhereSpecified (e2);
1322 uentry_setType (e2, ctype_unknown);
1323 uentry_makeConstantFunction (e2);
1324 uentry_setDefined (e2, g_currentloc);
1325 uentry_setFunctionDefined (e2, g_currentloc);
1326 context_enterUnknownMacro (e2);
1327 }
1328 else
1329 {
1330 if (!uentry_isSpecified (e2))
1331 {
1332 fileloc oloc = uentry_whereDeclared (e2);
1333
1334 if (fileloc_isLib (oloc))
1335 {
1336 ;
1337 }
1338 else if (fileloc_isUndefined (oloc)
1339 || fileloc_isPreproc (oloc))
1340 {
1341 if (!emptyMacro)
1342 {
1343 voptgenerror
1344 (FLG_MACROCONSTDECL,
1345 message
1346 ("Macro constant %q not declared",
1347 uentry_getName (e2)),
1348 loc);
1349 }
1350 }
1351 else if (!fileloc_withinLines (oloc, loc, 2))
1352 { /* bogus! will give errors if there is too much whitespace */
1353 voptgenerror
1354 (FLG_SYNTAX,
1355 message
1356 ("Macro constant name %s does not match name in "
1357 "previous constant declaration. This constant "
1358 "is declared at %q", fname,
1359 fileloc_unparse (oloc)),
1360 loc);
1361 }
1362 }
1363
1364 context_enterConstantMacro (e2);
1365 cstring_free (fname);
1366 fileloc_free (loc);
1367 return res;
1368 }
1369
1370 }
1371 else if (ctype_isFunction (ct))
1372 {
1373 isspecfcn = TRUE;
1374 specparams = ctype_argsFunction (ct);
1375 noparams = uentryList_size (specparams);
1376
1377 uentry_setFunctionDefined (e2, loc);
1378 context_enterMacro (e2);
1379 }
1380 else if (uentry_isVar (e2))
1381 {
1382 if (hasParams)
1383 {
1384 voptgenerror
1385 (FLG_INCONDEFS,
1386 message ("Variable %s implemented as parameterized macro",
1387 fname),
1388 loc);
1389
1390 uentry_showWhereSpecified (e2);
1391 uentry_setType (e2, ctype_unknown);
1392 uentry_makeVarFunction (e2);
1393 uentry_setDefined (e2, g_currentloc);
1394 uentry_setFunctionDefined (e2, g_currentloc);
1395 context_enterUnknownMacro (e2);
1396 }
1397 else
1398 {
1399 uentry ucons = uentry_makeConstant (fname,
1400 ctype_unknown,
1401 loc);
1402 if (uentry_isExpandedMacro (e2))
1403 {
1404 ; /* okay */
1405 }
1406 else
1407 {
1408 if (optgenerror
1409 (FLG_INCONDEFS,
1410 message ("Variable %s implemented by a macro",
1411 fname),
1412 loc))
1413 {
1414 uentry_showWhereSpecified (e2);
1415 }
1416 }
1417
1418 uentry_setDefined (e2, loc);
1419 uentry_setUsed (ucons, loc);
1420
1421 context_enterConstantMacro (ucons);
1422 uentry_markOwned (ucons);
1423 cstring_free (fname);
1424 return res;
1425 }
1426 }
1427 else
1428 {
1429 if (uentry_isDatatype (e2))
1430 {
1431 vgenhinterror
1432 (FLG_SYNTAX,
1433 message ("Type implemented as macro: %x",
1434 uentry_getName (e2)),
1435 message ("A type is implemented using a macro definition. A "
1436 "typedef should be used instead."),
1437 g_currentloc);
1438
1439 swallowMacro ();
1440 /* Must exit scope (not sure why a new scope was entered?) */
1441 usymtab_quietExitScope (g_currentloc);
1442 uentry_setDefined (e2, g_currentloc);
1443 res = FALSE;
1444 }
1445 else
1446 {
1447 llcontbug
1448 (message ("Unexpanded macro not function or constant: %q",
1449 uentry_unparse (e2)));
1450 uentry_setType (e2, ctype_unknown);
1451
1452 if (hasParams)
1453 {
1454 uentry_makeVarFunction (e2);
1455 uentry_setDefined (e2, g_currentloc);
1456 uentry_setFunctionDefined (e2, g_currentloc);
1457 context_enterUnknownMacro (e2);
1458 }
1459 }
1460 }
1461 }
1462 }
1463 }
1464 else
1465 {
1466 uentry ce;
1467
1468 /* evans 2001-09-09 - if it has params, assume a function */
1469 if (hasParams)
1470 {
1471 voptgenerror
1472 (FLG_MACROMATCHNAME,
1473 message ("Unexpanded macro %s does not match name of a declared "
1474 "function. The name used in the control "
1475 "comment on the previous line should match.",
1476 fname),
1477 loc);
1478
1479 ce = uentry_makeFunction (fname, ctype_unknown,
1480 typeId_invalid,
1481 globSet_undefined,
1482 sRefSet_undefined,
1483 warnClause_undefined,
1484 fileloc_undefined);
1485 uentry_setUsed (ce, loc); /* perhaps bogus? */
1486 e2 = usymtab_supEntryReturn (ce);
1487 context_enterUnknownMacro (e2);
1488 }
1489 else
1490 {
1491 voptgenerror
1492 (FLG_MACROMATCHNAME,
1493 message ("Unexpanded macro %s does not match name of a constant "
1494 "or iter declaration. The name used in the control "
1495 "comment on the previous line should match. "
1496 "(Assuming macro defines a constant.)",
1497 fname),
1498 loc);
1499
1500 ce = uentry_makeConstant (fname, ctype_unknown, fileloc_undefined);
1501 uentry_setUsed (ce, loc); /* perhaps bogus? */
1502 e2 = usymtab_supEntryReturn (ce);
1503
1504 context_enterConstantMacro (e2);
1505 cstring_free (fname);
1506 fileloc_free (loc);
1507 return res;
1508 }
1509 }
1510
1511 /* in macros, ( must follow immediatetly after name */
1512
1513 if (hasParams)
1514 {
1515 int paramno = 0;
1516
1517 c = skip_whitespace ();
1518
1519 while (c != ')' && c != '\0')
1520 {
1521 uentry param;
1522 bool suppress = context_inSuppressRegion ();
1523 cstring paramname = cstring_undefined;
1524
1525 /*
1526 ** save the parameter location
1527 */
1528
1529 decColumn ();
1530 context_saveLocation ();
1531 incColumn ();
1532
1533 while (c != ' ' && c != '\t' && c != ',' && c != '\0' && c != ')')
1534 {
1535 paramname = cstring_appendChar (paramname, c);
1536 c = macro_nextChar ();
1537 }
1538
1539 if (c == ' ' || c == '\t') c = skip_whitespace ();
1540
1541 if (c == ',')
1542 {
1543 c = macro_nextChar ();
1544 if (c == ' ' || c == '\t') c = skip_whitespace ();
1545 }
1546
1547 if (c == '\0')
1548 {
1549 llfatalerror (cstring_makeLiteral
1550 ("Bad macro syntax: uentryList"));
1551 }
1552
1553 if ((isspecfcn || isiter) && (paramno < noparams)
1554 && !uentry_isElipsisMarker (uentryList_getN
1555 (specparams, paramno)))
1556 {
1557 fileloc sloc = context_getSaveLocation ();
1558 uentry decl = uentryList_getN (specparams, paramno);
1559 sRef sr;
1560
1561 param = uentry_nameCopy (paramname, decl);
1562
1563 uentry_setParam (param);
1564 sr = sRef_makeParam (paramno, uentry_getType (param), stateInfo_makeLoc (sloc));
1565
1566 if (sRef_getNullState (sr) == NS_ABSNULL)
1567 {
1568 ctype pt = ctype_realType (uentry_getType (param));
1569
1570 if (ctype_isUser (pt))
1571 {
1572 uentry te = usymtab_getTypeEntrySafe (ctype_typeId (pt));
1573
1574 if (uentry_isValid (te))
1575 {
1576 sRef_setStateFromUentry (sr, te);
1577 }
1578 }
1579 else
1580 {
1581 sRef_setNullState (sr, NS_UNKNOWN, sloc);
1582 }
1583 }
1584
1585 uentry_setSref (param, sr);
1586 uentry_setDeclaredForceOnly (param, sloc);
1587
1588 skipparam = isiter && uentry_isOut (uentryList_getN (specparams, paramno));
1589 }
1590 else
1591 {
1592 fileloc sloc = context_getSaveLocation ();
1593
1594 param = uentry_makeVariableSrefParam
1595 (paramname, ctype_unknown, fileloc_copy (sloc),
1596 sRef_makeParam (paramno, ctype_unknown, stateInfo_makeLoc (sloc)));
1597 DPRINTF (("Unknown param: %s", uentry_unparseFull (param)));
1598 cstring_free (paramname);
1599
1600 sRef_setPosNull (uentry_getSref (param), sloc);
1601 uentry_setDeclaredForce (param, sloc);
1602
1603 skipparam = FALSE;
1604 fileloc_free (sloc);
1605 }
1606
1607 if (!skipparam)
1608 {
1609 llassert (!uentry_isElipsisMarker (param));
1610
1611 if (!suppress)
1612 {
1613 sRef_makeUnsafe (uentry_getSref (param));
1614 }
1615
1616 pn = uentryList_add (pn, uentry_copy (param));
1617 usymtab_supEntry (param);
1618 }
1619 else
1620 {
1621 /* don't add param */
1622 uentry_free (param);
1623 }
1624
1625 if (c == ',')
1626 {
1627 (void) macro_nextChar ();
1628 c = skip_whitespace ();
1629 }
1630
1631 paramno++;
1632 }
1633
1634 if (c == ')')
1635 {
1636 if (isspecfcn || isiter)
1637 {
1638 if (paramno != noparams && noparams >= 0)
1639 {
1640 advanceLine ();
1641
1642 voptgenerror
1643 (FLG_INCONDEFS,
1644 message ("Macro %s specified with %d args, defined with %d",
1645 fname, noparams, paramno),
1646 g_currentloc);
1647
1648 uentry_showWhereSpecified (e2);
1649 uentry_resetParams (e2, pn);
1650 }
1651 }
1652 else
1653 {
1654 uentry_resetParams (e2, pn);
1655 }
1656 }
1657 }
1658 else
1659 {
1660 /*
1661 ** the form should be:
1662 **
1663 ** # define newname oldname
1664 ** where oldname refers to a function matching the specification
1665 ** of newname.
1666 */
1667
1668 if (unknownm)
1669 {
1670 sRef_setGlobalScope ();
1671 usymtab_supGlobalEntry (uentry_makeVariableLoc (fname, ctype_unknown));
1672 sRef_clearGlobalScope ();
1673 }
1674 else
1675 {
1676 context_setMacroMissingParams ();
1677 }
1678 }
1679
1680
1681 /* context_setuentryList (pn); */
1682 usymtab_enterScope ();
1683
1684 fileloc_free (loc);
1685 cstring_free (fname);
1686
1687 return res;
1688}
1689
1690static bool handleSpecial (char *yyt)
1691{
1692 char *l = mstring_create (MAX_NAME_LENGTH);
1693 static bool reportcpp = FALSE;
1694 int lineno = 0;
1695 char c;
1696 char *ol;
1697 cstring olc;
1698
1699 strcpy (l, yyt + 1);
1700
1701 /* Need to safe original l for deallocating. */
1702 ol = l;
1703
1704 l += strlen (yyt) - 1;
1705
1706 while ((c = char_fromInt (lminput ())) != '\n' && c != '\0')
1707 {
1708 *l++ = c;
1709 }
1710
1711 *l = '\0';
1712 olc = cstring_fromChars (ol);
1713
1714 if (cstring_equalPrefixLit (olc, "pragma"))
1715 {
1716 char *pname = mstring_create (longUnsigned_fromInt (MAX_PRAGMA_LEN));
1717 char *opname = pname;
1718 char *ptr = ol + 6; /* pragma is six characters, plus space */
1719 int len = 0;
1720
1721
1722 /* skip whitespace */
1723 while (((c = *ptr) != '\0') && isspace (c))
1724 {
1725 ptr++;
1726 }
1727
1728
1729 while (((c = *ptr) != '\0') && !isspace (c))
1730 {
1731 len++;
1732
1733 if (len > MAX_PRAGMA_LEN)
1734 {
1735 break;
1736 }
1737
1738 ptr++;
1739 *pname++ = c;
1740 }
1741
1742 *pname = '\0';
1743
1744 if (len == PRAGMA_LEN_EXPAND
1745 && mstring_equal (opname, PRAGMA_EXPAND))
1746 {
1747 cstring exname = cstring_undefined;
1748 uentry ue;
1749
1750 ptr++;
1751 while (((c = *ptr) != '\0') && !isspace (c))
1752 {
1753 exname = cstring_appendChar (exname, c);
1754 ptr++;
1755 }
1756
1757
1758 ue = usymtab_lookupExposeGlob (exname);
1759
1760 if (uentry_isExpandedMacro (ue))
1761 {
1762 if (fileloc_isPreproc (uentry_whereDefined (ue)))
1763 {
1764 fileloc_setColumn (g_currentloc, 1);
1765 uentry_setDefined (ue, g_currentloc);
1766 }
1767 }
1768
1769 cstring_free (exname);
1770 }
1771 }
1772 else if (cstring_equalPrefixLit (olc, "ident"))
1773 {
1774 /* Some pre-processors will leave these in the code. Ignore rest of line */
1775 }
1776 /*
1777 ** Yuk...Win32 filenames can have spaces in them...we need to read
1778 ** to the matching end quote.
1779 */
1780 else if ((sscanf (ol, "line %d \"", &lineno) == 1)
1781 || (sscanf (ol, " %d \"", &lineno) == 1))
1782 {
1783 char *tmp = ol;
1784 cstring fname;
1785 fileId fid;
1786
1787 /*@access cstring@*/
1788 while (*tmp != '\"' && *tmp != '\0')
1789 {
1790 tmp++;
1791 }
1792
1793 llassert (*tmp == '\"');
1794
1795 tmp++;
1796
1797 fname = tmp;
1798
1799 while (*tmp != '\"' && *tmp != '\0')
1800 {
1801 tmp++;
1802 }
1803
1804 llassert (*tmp == '\"');
1805
1806 *tmp = '\0';
1807
1808# if defined(OS2) || defined(MSDOS) || defined(WIN32)
1809
1810 /*
1811 ** DOS-like path delimiters get delivered in pairs, something like
1812 ** \"..\\\\file.h\", so we have to make it normal again. We do NOT
1813 ** remove the pre dirs yet as we usually specify tmp paths relative
1814 ** to the current directory, so tmp files would not get found in
1815 ** the hash table. If this method fails we try it again later.
1816 */
1817
1818 {
1819 char *stmp = fname;
1820
1821 /*
1822 ** Skip past the drive marker.
1823 */
1824
1825 if (strchr (stmp, ':') != NULL)
1826 {
1827 stmp = strchr (stmp, ':') + 1;
1828 }
1829
1830 while ((stmp = strchr (stmp, CONNECTCHAR)) != NULL )
1831 {
1832 if (*(stmp+1) == CONNECTCHAR)
1833 {
1834 memmove (stmp, stmp+1, strlen (stmp));
1835 }
1836
1837 stmp++;
1838 }
1839
1840 fid = fileTable_lookupBase (context_fileTable (), fname);
1841 if (!(fileId_isValid (fid)))
1842 {
1843 fname = removePreDirs (fname);
1844 fid = fileTable_lookupBase (context_fileTable (), fname);
1845 }
1846 }
1847# else /* !defined(OS2) && !defined(MSDOS) */
1848 fname = removePreDirs (fname);
1849 fid = fileTable_lookupBase (context_fileTable (), fname);
1850# endif /* !defined(OS2) && !defined(MSDOS) */
1851
1852 if (!(fileId_isValid (fid)))
1853 {
1854 if (context_inXHFile ())
1855 {
1856 fid = fileTable_addXHFile (context_fileTable (), fname);
1857 }
1858 else if (isHeaderFile (fname))
1859 {
1860 fid = fileTable_addHeaderFile (context_fileTable (), fname);
1861 }
1862 else
1863 {
1864 fid = fileTable_addFile (context_fileTable (), fname);
1865 }
1866 }
1867
1868 setFileLine (fid, lineno);
1869 /*@noaccess cstring@*/
1870 }
1871 else if ((sscanf (ol, "line %d", &lineno) == 1)
1872 || (sscanf (ol, " %d", &lineno) == 1))
1873 {
1874 setLine (lineno); /* next line is <cr> */
1875 }
1876 else
1877 {
1878 if (mstring_equal (ol, "")) {
1879 DPRINTF (("Empty pp command!"));
1880 /*
1881 ** evs 2000-05-16: This is a horrible kludge, to get around a bug (well, difficulty) in the pre-processor.
1882 ** We handle a plain # in the input file, by echoing it, and ignoring it in the post-pp-file.
1883 */
1884 mstring_free (ol);
1885 return FALSE;
1886 } else {
1887 if (!reportcpp)
1888 {
1889
1890 } else {
1891 llbug (message ("File contains preprocessor command: #%s",
1892 cstring_fromChars (ol)));
1893 reportcpp = TRUE;
1894 }
1895 }
1896
1897 sfree (ol);
1898 return TRUE;
1899 }
1900
1901 sfree (ol);
1902 return FALSE;
1903}
1904
1905static int handleLlSpecial ()
1906{
1907 bool hasnl = FALSE;
1908 int ic;
1909 char c;
1910 char *s = mstring_createEmpty ();
1911 char *os;
1912 int tok;
1913 int charsread = 0;
1914 fileloc loc;
1915
1916 loc = fileloc_copy (g_currentloc);
1917 DPRINTF (("Handle special: %s", fileloc_unparse (loc)));
1918
1919 while (((ic = ninput ()) != 0) && isalpha (ic))
1920 {
1921 c = (char) ic;
1922 s = mstring_append (s, c);
1923 charsread++;
1924 }
1925
1926 DPRINTF (("Read: %s / %s", s, fileloc_unparse (g_currentloc)));
1927 os = s;
1928
1929 if (charsread == 0 && ic == (int) AFTER_COMMENT_MARKER[0])
1930 {
1931 ic = ninput ();
1932
1933 llassert (ic == AFTER_COMMENT_MARKER[1]);
1934
1935 if (*s == '\0')
1936 {
1937 sfree (os);
1938 fileloc_free (loc);
1939 return QNOMODS; /* special token no modifications token */
1940 }
1941 }
1942
1943 DPRINTF (("Coment marker: %s", os));
1944 tok = commentMarkerToken (cstring_fromChars (os));
1945
1946 if (tok != BADTOK)
1947 {
1948 tokLength = charsread;
1949 sfree (os);
1950 inSpecPart = TRUE;
1951 fileloc_free (loc);
1952 return tok;
1953 }
1954
1955 DPRINTF (("Not a comment marker..."));
1956 /* Add rest of the comment */
1957
1958 if (ic != 0 && ic != EOF)
1959 {
1960 c = (char) ic;
1961
1962 s = mstring_append (s, c);
1963 charsread++;
1964
1965 while (((ic = ninput ()) != 0) && (ic != EOF)
1966 && (ic != AFTER_COMMENT_MARKER[0]))
1967 {
1968 c = (char) ic;
1969
1970 /* evans 2001-09-01 added to prevent assertion failures for uncloses syntactic comments */
1971
1972 if (c == '\n') {
1973 hasnl = TRUE; /* This prevents tokLength from being set later. */
1974 tokLength = 0;
1975
1976 voptgenerror
1977 (FLG_SYNTAX,
1978 message ("Likely parse error: syntactic comment token spans multiple lines: %s",
1979 cstring_fromChars (s)),
1980 g_currentloc);
1981 }
1982
1983 s = mstring_append (s, c);
1984 charsread++;
1985 }
1986 }
1987
1988 DPRINTF (("Read: %s / %s", s, fileloc_unparse (g_currentloc)));
1989
1990 if (ic == AFTER_COMMENT_MARKER[0])
1991 {
1992 int nc = ninput ();
1993 llassert ((char) nc == AFTER_COMMENT_MARKER[1]);
1994 charsread++;
1995 }
1996
1997 os = s;
1998
1999 while (*s == ' ' || *s == '\t' || *s == '\n')
2000 {
2001 s++;
2002 }
2003
2004 if (*s == '-' || *s == '+' || *s == '=') /* setting flags */
2005 {
2006 c = *s;
2007
2008 while (c == '-' || c == '+' || c == '=')
2009 {
2010 ynm set = ynm_fromCodeChar (c);
2011 cstring thisflag;
2012
2013 s++;
2014
2015 thisflag = cstring_fromChars (s);
2016
2017 while ((c = *s) != '\0' && (c != '-') && (c != '=')
2018 && (c != '+') && (c != ' ') && (c != '\t') && (c != '\n'))
2019 {
2020 s++;
2021 }
2022
2023 *s = '\0';
2024
2025 if (!context_getFlag (FLG_NOCOMMENTS))
2026 {
2027 cstring flagname = thisflag;
2028 flagcode fflag = identifyFlag (flagname);
2029
2030 if (flagcode_isSkip (fflag))
2031 {
2032 ;
2033 }
2034 else if (flagcode_isInvalid (fflag))
2035 {
2036 if (isMode (flagname))
2037 {
2038 if (ynm_isMaybe (set))
2039 {
2040 llerror
2041 (FLG_BADFLAG,
2042 message
2043 ("Semantic comment attempts to restore flag %s. "
2044 "A mode flag cannot be restored.",
2045 flagname));
2046 }
2047 else
2048 {
2049 context_setMode (flagname);
2050 }
2051 }
2052 else
2053 {
2054 voptgenerror
2055 (FLG_UNRECOGFLAGCOMMENTS,
2056 message ("Unrecognized option in semantic comment: %s",
2057 flagname),
2058 g_currentloc);
2059 }
2060 }
2061 else if (flagcode_isGlobalFlag (fflag))
2062 {
2063 voptgenerror
2064 (FLG_BADFLAG,
2065 message
2066 ("Semantic comment attempts to set global flag %s. "
2067 "A global flag cannot be set locally.",
2068 flagname),
2069 g_currentloc);
2070 }
2071 else
2072 {
2073 context_fileSetFlag (fflag, set);
2074
2075 if (flagcode_hasArgument (fflag))
2076 {
2077 if (ynm_isMaybe (set))
2078 {
2079 voptgenerror
2080 (FLG_BADFLAG,
2081 message
2082 ("Semantic comment attempts to restore flag %s. "
2083 "A flag for setting a value cannot be restored.",
2084 flagname),
2085 g_currentloc);
2086 }
2087 else
2088 { /* cut-and-pastied from llmain...blecch */
2089 cstring extra = cstring_undefined;
2090 char *rest;
2091 char *orest;
2092 char rchar;
2093
2094 *s = c;
2095 rest = mstring_copy (s);
2096 orest = rest;
2097 *s = '\0';
2098
2099 while ((rchar = *rest) != '\0'
2100 && (isspace (rchar)))
2101 {
2102 rest++;
2103 s++;
2104 }
2105
2106 while ((rchar = *rest) != '\0'
2107 && !isspace (rchar))
2108 {
2109 extra = cstring_appendChar (extra, rchar);
2110 rest++;
2111 s++;
2112 }
2113
2114 sfree (orest);
2115
2116 if (cstring_isUndefined (extra))
2117 {
2118 llerror
2119 (FLG_BADFLAG,
2120 message
2121 ("Flag %s (in semantic comment) must be followed by an argument",
2122 flagcode_unparse (fflag)));
2123 }
2124 else
2125 {
2126 s--;
2127
2128 if (flagcode_hasValue (fflag))
2129 {
2130 setValueFlag (fflag, extra);
2131 }
2132 else if (flagcode_hasString (fflag))
2133 {
2134 setStringFlag (fflag, extra);
2135 }
2136 else
2137 {
2138 BADEXIT;
2139 }
2140 }
2141 }
2142 }
2143 }
2144 }
2145 else
2146 {
2147 ;
2148 }
2149
2150 *s = c;
2151 while ((c == ' ') || (c == '\t') || (c == '\n'))
2152 {
2153 c = *(++s);
2154 }
2155 }
2156
2157 if (context_inHeader () && !isArtificial (cstring_fromChars (os)))
2158 {
2159 DPRINTF (("Here adding comment: %s", os));
2160 context_addComment (cstring_fromCharsNew (os));
2161 }
2162 else
2163 {
2164 ;
2165 }
2166 }
2167 else
2168 {
2169 char *t = s;
2170 int macrocode;
2171 char tchar = '\0';
2172 annotationInfo ainfo;
2173
2174 while (*s != '\0' && *s != ' ' && *s != '\t' && *s != '\n')
2175 {
2176 s++;
2177 }
2178
2179 if (*s != '\0')
2180 {
2181 tchar = *s;
2182 *s = '\0';
2183 s++;
2184 }
2185
2186 t = cstring_toCharsSafe (cstring_downcase (cstring_fromChars (t)));
2187 macrocode = tokenMacroCode (cstring_fromChars (t));
2188
2189 if (macrocode != BADTOK)
2190 {
2191 tokLength = hasnl ? 0 : mstring_length (t);
2192
2193 sfree (t);
2194 sfree (os);
2195 fileloc_free (loc);
2196
2197 if (macrocode == SKIPTOK)
2198 {
2199 return BADTOK;
2200 }
2201
2202 return macrocode;
2203 }
2204
2205 ainfo = context_lookupAnnotation (cstring_fromChars (os));
2206
2207 if (annotationInfo_isDefined (ainfo)) {
2208 DPRINTF (("Found annotation: %s", annotationInfo_unparse (ainfo)));
2209 /*@i324@*/ yylval.annotation = ainfo;
2210 tokLength = 0;
2211 sfree (os);
2212 sfree (t);
2213 fileloc_free (loc);
2214 return CANNOTATION;
2215 }
2216
2217 if (context_inHeader ())
2218 {
2219 if (tchar != '\0')
2220 {
2221 *(s-1) = tchar;
2222 }
2223
2224 if ((context_inMacro () || context_inGlobalContext ())
2225 && macrocode != SKIPTOK
2226 && !isArtificial (cstring_fromChars (os)))
2227 {
2228 DPRINTF (("Add comment: %s", os));
2229 context_addComment (cstring_fromCharsNew (os));
2230 }
2231 else
2232 {
2233 ;
2234 }
2235
2236 if (tchar != '\0')
2237 {
2238 *(s-1) = '\0';
2239 }
2240 }
2241
2242 if (mstring_equal (t, "ignore"))
2243 {
2244 if (!context_getFlag (FLG_NOCOMMENTS))
2245 {
2246 context_enterSuppressRegion ();
2247 }
2248 }
2249 else if ((*t == 'i' || *t == 't')
2250 && (*(t + 1) == '\0'))
2251 {
2252 if (!context_getFlag (FLG_NOCOMMENTS)
2253 && (*t == 'i' || context_getFlag (FLG_TMPCOMMENTS)))
2254 {
2255 context_enterSuppressLine (-1); /* infinite suppression */
2256 }
2257 }
2258 else if (((*t == 'i') || (*t == 't'))
2259 && ((*(t + 1) >= '0' && *(t + 1) <= '9')))
2260 {
2261 bool tmpcomment = (*t == 't');
2262 int val = -1;
2263 char *tt = t; /* don't mangle t, since it is free'd */
2264 char lc = *(++tt);
2265
2266 if (lc >= '0' && lc <= '9')
2267 {
2268 val = (int)(lc - '0');
2269
2270 lc = *(++tt);
2271 while (lc >= '0' && lc <= '9')
2272 {
2273 val *= 10;
2274 val += lc - '0';
2275 lc = *(++tt);
2276 }
2277 }
2278
2279
2280 if (!context_getFlag (FLG_NOCOMMENTS)
2281 && (!tmpcomment || context_getFlag (FLG_TMPCOMMENTS)))
2282 {
2283 context_enterSuppressLine (val);
2284 }
2285 }
2286 else if (mstring_equal (t, "end"))
2287 {
2288 if (!context_getFlag (FLG_NOCOMMENTS))
2289 {
2290 context_exitSuppressRegion ();
2291 }
2292 }
2293 else if (mstring_equal (t, "notfunction"))
2294 {
2295 ; /* handled by pcpp */
2296 }
2297 else if (mstring_equal (t, "access"))
2298 {
2299 cstring tname;
2300
2301 while (TRUE)
2302 {
2303 while ((c = *s) && (c == ' ' || c == '\t' || c == '\n'))
2304 {
2305 s++;
2306 }
2307
2308 if (c == '\0')
2309 {
2310 break;
2311 }
2312
2313 tname = cstring_fromChars (s);
2314
2315 while ((c = *s) != '\0' && c != ' '
2316 && c != '\t' && c != '\n' && c != ',')
2317 {
2318 s++;
2319 }
2320
2321 *s = '\0';
2322
2323 DPRINTF (("Access %s", tname));
2324
2325 if (!context_getFlag (FLG_NOCOMMENTS)
2326 && !context_getFlag (FLG_NOACCESS))
2327 {
2328 if (usymtab_existsType (tname))
2329 {
2330 typeId uid = usymtab_getTypeId (tname);
2331 uentry ue = usymtab_getTypeEntry (uid);
2332
2333 if (uentry_isAbstractDatatype (ue))
2334 {
2335 context_addFileAccessType (uid);
2336 DPRINTF (("Adding access to: %s / %d", tname, uid));
2337 }
2338 else
2339 {
2340 voptgenerror
2341 (FLG_COMMENTERROR,
2342 message
2343 ("Non-abstract type %s used in access comment",
2344 tname),
2345 g_currentloc);
2346 }
2347 }
2348 else
2349 {
2350 if (!(context_inSuppressRegion ()
2351 || context_inSuppressZone (g_currentloc)))
2352 {
2353 voptgenerror
2354 (FLG_COMMENTERROR,
2355 message
2356 ("Unrecognized type %s used in access comment",
2357 tname),
2358 g_currentloc);
2359 }
2360 }
2361 }
2362
2363 if (c != '\0')
2364 {
2365 s++;
2366 }
2367
2368 if (c != ',' && c != ' ')
2369 {
2370 break;
2371 }
2372 }
2373 }
2374 else if (mstring_equal (t, "noaccess"))
2375 {
2376 cstring tname;
2377 char lc;
2378
2379 while (TRUE)
2380 {
2381 while ((lc = *s) && (lc == ' ' || lc == '\t' || lc == '\n'))
2382 {
2383 s++;
2384 }
2385
2386 if (lc == '\0')
2387 {
2388 break;
2389 }
2390
2391 tname = cstring_fromChars (s);
2392
2393 while ((lc = *s) != '\0' && lc != ' ' && lc != '\t'
2394 && lc != '\n' && lc != ',')
2395 {
2396 s++;
2397 }
2398
2399 *s = '\0';
2400
2401 if (!context_getFlag (FLG_NOCOMMENTS)
2402 && !context_getFlag (FLG_NOACCESS))
2403 {
2404 if (usymtab_existsType (tname))
2405 {
2406 typeId tuid = usymtab_getTypeId (tname);
2407
2408 if (context_couldHaveAccess (tuid))
2409 {
2410 DPRINTF (("Removing access: %s", tname));
2411 context_removeFileAccessType (tuid);
2412 }
2413 else
2414 {
2415 if (!(context_inSuppressRegion ()
2416 || context_inSuppressZone (g_currentloc)))
2417 {
2418 uentry ue = usymtab_getTypeEntry (tuid);
2419
2420 if (uentry_isAbstractDatatype (ue))
2421 {
2422 voptgenerror
2423 (FLG_COMMENTERROR,
2424 message
2425 ("Non-accessible abstract type %s used in noaccess comment",
2426 tname),
2427 g_currentloc);
2428 }
2429 else
2430 {
2431 voptgenerror
2432 (FLG_COMMENTERROR,
2433 message
2434 ("Non-abstract type %s used in noaccess comment",
2435 tname),
2436 g_currentloc);
2437 }
2438 }
2439 }
2440 }
2441 else
2442 {
2443 if (!(context_inSuppressRegion ()
2444 || context_inSuppressZone (g_currentloc)))
2445 {
2446 voptgenerror
2447 (FLG_COMMENTERROR,
2448 message
2449 ("Unrecognized type %s used in noaccess comment",
2450 tname),
2451 g_currentloc);
2452 }
2453 }
2454 }
2455
2456 if (lc != '\0')
2457 {
2458 s++;
2459 }
2460
2461 if (lc != ',' && lc != ' ')
2462 {
2463 break;
2464 }
2465 }
2466 }
2467 else
2468 {
2469 voptgenerror (FLG_UNRECOGCOMMENTS,
2470 message ("Semantic comment unrecognized: %s",
2471 cstring_fromChars (os)), loc);
2472 }
2473
2474 sfree (t);
2475 }
2476
2477 sfree (os);
2478 fileloc_free (loc);
2479 return BADTOK;
2480}
2481
2482static /*@only@*/ cstring makeIdentifier (char *s)
2483{
2484 char *c = mstring_create (size_toInt (strlen (s)) + 1);
2485 cstring id = cstring_fromChars (c);
2486
2487 while (isalnum (*s) || (*s == '_') || (*s == '$'))
2488 {
2489 *c++ = *s++;
2490 }
2491
2492 *c = '\0';
2493 return (id);
2494}
2495
2496/*@observer@*/ /*@dependent@*/ uentry coerceId (cstring cn)
2497{
2498 if (!(usymtab_exists (cn)))
2499 {
2500 fileloc loc = fileloc_createExternal ();
2501
2502 /*
2503 ** We need to put this in a global scope, otherwise the sRef will be deallocated.
2504 */
2505
2506 uentry ce = uentry_makeUnrecognized (cn, loc);
2507
2508 if (!context_inIterEnd ())
2509 {
2510 voptgenerror
2511 (FLG_SYSTEMUNRECOG,
2512 message ("Unrecognized (possibly system) identifier: %q",
2513 uentry_getName (ce)),
2514 g_currentloc);
2515 }
2516
2517 return ce;
2518 }
2519
2520 return (usymtab_lookup (cn));
2521}
2522
2523/*
2524** like, coerceId, but doesn't supercede for iters
2525*/
2526
2527/*@observer@*/ uentry coerceIterId (cstring cn)
2528{
2529 if (!(usymtab_exists (cn)))
2530 {
2531 return uentry_undefined;
2532 }
2533
2534 return (usymtab_lookup (cn));
2535}
2536
2537/*@observer@*/ cstring LastIdentifier ()
2538{
2539 return (lastidprocessed);
2540}
2541
2542static int processIdentifier (cstring id)
2543{
2544 uentry le;
2545
2546 if (context_getFlag (FLG_GRAMMAR))
2547 {
2548 lldiagmsg (message ("Process identifier: %s", id));
2549 }
2550
2551 context_clearJustPopped ();
2552 lastidprocessed = id;
2553
2554 if (context_inFunctionHeader ())
2555 {
2556 int tok = commentMarkerToken (id);
2557 DPRINTF (("in function decl..."));
2558
2559 if (tok != BADTOK)
2560 {
2561 return tok;
2562 }
2563 else
2564 {
2565 tok = tokenMacroCode (id);
2566
2567 if (tok != BADTOK)
2568 {
2569 return tok;
2570 }
2571 else
2572 {
2573 annotationInfo ainfo;
2574
2575 if (expectingMetaStateName)
2576 {
2577 metaStateInfo msinfo = context_lookupMetaStateInfo (id);
2578
2579 if (metaStateInfo_isDefined (msinfo))
2580 {
2581 yylval.msinfo = msinfo;
2582 return METASTATE_NAME;
2583 }
2584 else
2585 {
2586 DPRINTF (("Not meta state name: %s", cstring_toCharsSafe (id)));
2587 }
2588 }
2589
2590 ainfo = context_lookupAnnotation (id);
2591
2592 if (annotationInfo_isDefined (ainfo))
2593 {
2594 DPRINTF (("Found annotation: %s", annotationInfo_unparse (ainfo)));
2595 /*@i324@*/ yylval.annotation = ainfo;
2596 return CANNOTATION;
2597 }
2598 else
2599 {
2600 DPRINTF (("Not annotation: %s", id));
2601 }
2602 }
2603 }
2604 }
2605
2606 /* Consider handling: Defined by C99 as static const char __func__[] */
2607
2608 if (context_getFlag (FLG_GNUEXTENSIONS))
2609 {
2610 int tok = BADTOK;
2611
2612 if (cstring_equalLit (id, "__stdcall")
2613 || cstring_equalLit (id, "__cdecl")
2614 || cstring_equalLit (id, "__extension__"))
2615 {
2616 return BADTOK;
2617 }
2618 else if (cstring_equalLit (id, "__volatile__"))
2619 {
2620 tok = QVOLATILE;
2621 }
2622 else if (cstring_equalLit (id, "__signed"))
2623 {
2624 tok = QSIGNED;
2625 }
2626 else if (cstring_equalLit (id, "__unsigned"))
2627 {
2628 tok = QUNSIGNED;
2629 }
2630 else if (cstring_equalLit (id, "__const__"))
2631 {
2632 tok = QCONST;
2633 }
2634 else if (cstring_equalLit (id, "__alignof__"))
2635 {
2636 tok = CALIGNOF; /* alignof is parsed like sizeof */
2637 }
2638 else if (cstring_equalLit (id, "__FUNCTION__")
2639 || cstring_equalLit (id, "__PRETTY_FUNCTION__"))
2640 {
2641 /* These tokens hold the name of the current function as strings */
2642 yylval.expr = exprNode_stringLiteral (id, fileloc_copy (g_currentloc));
2643 tokLength = 0;
2644 lastWasString = TRUE;
2645 tok = CCONSTANT;
2646 return tok;
2647 }
2648 else if (cstring_equalLit (id, "__attribute__")
2649 || cstring_equalLit (id, "__asm__")
2650 || cstring_equalLit (id, "_asm")
2651 || cstring_equalLit (id, "__asm")
2652 || cstring_equalLit (id, "__declspec"))
2653 {
2654 int depth = 0;
2655 bool useparens = FALSE;
2656 bool usebraces = FALSE;
2657 bool inquote = FALSE;
2658 bool inescape = FALSE;
2659 int ic;
2660
2661 while ((ic = input ()) != EOF)
2662 {
2663
2664 if (inescape)
2665 {
2666 inescape = FALSE;
2667 }
2668 else if (ic == '\\')
2669 {
2670 inescape = TRUE;
2671 }
2672 else if (ic == '\"')
2673 {
2674 inquote = !inquote;
2675 }
2676 else if (!inquote)
2677 {
2678 if (ic == '(')
2679 {
2680 if (!useparens)
2681 {
2682 if (!usebraces)
2683 {
2684 useparens = TRUE;
2685 }
2686 }
2687
2688 if (useparens)
2689 {
2690 depth++;
2691 }
2692 }
2693 else if (ic == '{')
2694 {
2695 if (!usebraces)
2696 {
2697 if (!useparens)
2698 {
2699 usebraces = TRUE;
2700 }
2701 }
2702
2703 if (usebraces)
2704 {
2705 depth++;
2706 }
2707 }
2708 else if (ic == ')' && useparens)
2709 {
2710 depth--;
2711 if (depth == 0) break;
2712 }
2713 else if (ic == '}' && usebraces)
2714 {
2715 depth--;
2716 if (depth == 0) break;
2717 }
2718 else if (ic == '}'
2719 && !usebraces && !useparens
2720 && cstring_equalLit (id, "__asm"))
2721 {
2722 /*
2723 ** We need this because some MS VC++ include files
2724 ** have __asm mov ... }
2725 ** Its a kludge, but otherwise would need to parse
2726 ** the asm code!
2727 */
2728 return TRBRACE;
2729 }
2730 }
2731
2732 if (ic == '\n')
2733 {
2734 context_incLineno ();
2735
2736 if (cstring_equalLit (id, "__asm")
2737 && !useparens && !usebraces)
2738 {
2739 break;
2740 }
2741 }
2742 }
2743
2744 llassert ((useparens && ic == ')')
2745 || (usebraces && ic == '}')
2746 || (!useparens && !usebraces));
2747
2748 return BADTOK;
2749 }
2750 else if (cstring_equalLit (id, "inline")
2751 || cstring_equalLit (id, "__inline")
2752 || cstring_equalLit (id, "_inline")
2753 || cstring_equalLit (id, "__inline__"))
2754 {
2755 tok = QINLINE;
2756 }
2757
2758 if (tok != BADTOK)
2759 {
2760 RETURN_TOK (tok);
2761 }
2762 }
2763
2764 le = usymtab_lookupSafe (id);
2765
2766 /*@-dependenttrans@*/
2767
2768 if (uentry_isIter (le))
2769 {
2770 /*@i32@*/ yylval.entry = le;
2771 return (ITER_NAME);
2772 }
2773 else if (uentry_isEndIter (le))
2774 {
2775 /*@i32@*/ yylval.entry = le;
2776 return (ITER_ENDNAME);
2777 }
2778 else if (uentry_isUndefined (le))
2779 {
2780 yylval.cname = id;
2781
2782 /* avoid parse errors for certain system built ins */
2783
2784 if (g_expectingTypeName && (cstring_firstChar (id) == '_')
2785 && (cstring_secondChar (id) == '_'))
2786 {
2787 return (TYPE_NAME_OR_ID);
2788 }
2789
2790 return (NEW_IDENTIFIER);
2791 }
2792 else if (!uentry_isDeclared (le) && !uentry_isCodeDefined (le))
2793 {
2794 if (uentry_isDatatype (le))
2795 {
2796 yylval.cname = id;
2797 return (NEW_IDENTIFIER);
2798 }
2799 else
2800 {
2801 /*@i32@*/ yylval.entry = le;
2802 return (IDENTIFIER);
2803 }
2804 }
2805 else if (uentry_isDatatype (le))
2806 {
2807 if (!g_expectingTypeName)
2808 {
2809 yylval.cname = id;
2810
2811 return (NEW_IDENTIFIER);
2812 }
2813 else
2814 {
2815 yylval.ctyp = uentry_getAbstractType (le);
2816
2817 uentry_setUsed (le, g_currentloc);
2818 return (TYPE_NAME);
2819 }
2820 }
2821 else
2822 {
2823 /*@i32@*/ yylval.entry = le;
2824 return (IDENTIFIER);
2825 }
2826
2827 /*@=dependenttrans@*/
2828}
2829
2830static bool processHashIdentifier (/*@only@*/ cstring id)
2831{
2832 if (context_inMacro () || context_inIterDef () ||
2833 context_inIterEnd ())
2834 {
2835 uentry le;
2836
2837 context_clearJustPopped ();
2838
2839 lastidprocessed = id;
2840 le = usymtab_lookupSafe (id);
2841
2842 if (uentry_isParam (le) || uentry_isRefParam (le))
2843 {
2844 return TRUE;
2845 }
2846 else
2847 {
2848 return FALSE;
2849 }
2850 }
2851 else
2852 {
2853 cstring_free (id);
2854 return FALSE;
2855 }
2856}
2857
2858
2859static /*@only@*/ exprNode processString ()
2860{
2861 exprNode res;
2862 fileloc loc;
2863 char *nl = strchr (yytext, '\n');
2864 cstring ns = cstring_fromCharsNew (yytext);
2865
2866 if (nl == NULL)
2867 {
2868 loc = fileloc_copy (g_currentloc);
2869 addColumn (cstring_length (ns));
2870 }
2871 else
2872 {
2873 char *lastnl = nl;
2874
2875 loc = fileloc_copy (g_currentloc);
2876
2877 context_incLineno ();
2878
2879 while ((nl = strchr ((nl + 1), '\n')) != NULL)
2880 {
2881 context_incLineno ();
2882 lastnl = nl;
2883 }
2884 }
2885
2886
2887 res = exprNode_stringLiteral (ns, loc);
2888 return (res);
2889}
2890
2891static
2892char processChar ()
2893{
2894 char fchar;
2895 char next;
2896
2897 llassert (*yytext != '\0');
2898 fchar = *(yytext + 1);
2899 if (fchar != '\\') return fchar;
2900
2901 next = *(yytext + 2);
2902
2903 switch (next)
2904 {
2905 case 'n': return '\n';
2906 case 't': return '\t';
2907 case '\"': return '\"';
2908 case '\'': return '\'';
2909 case '\\': return '\\';
2910 default: return '\0';
2911 }
2912}
2913
2914static
2915double processFloat ()
2916{
2917 double ret = atof (yytext);
2918
2919 return (ret);
2920}
2921
2922static
2923long processHex ()
2924{
2925 int index = 2;
2926 long val = 0;
2927
2928 llassert (yytext[0] == '0'
2929 && (yytext[1] == 'X' || yytext[1] == 'x'));
2930
2931 while (yytext[index] != '\0') {
2932 int tval;
2933 char c = yytext[index];
2934
2935 if (c >= '0' && c <= '9') {
2936 tval = (int) c - (int) '0';
2937 } else if (c >= 'A' && c <= 'F') {
2938 tval = (int) c - (int) 'A' + 10;
2939 } else if (c >= 'a' && c <= 'f') {
2940 tval = (int) c - (int) 'a' + 10;
2941 } else if (c == 'U' || c == 'L' || c == 'u' || c == 'l') {
2942 index++;
2943 while (yytext[index] != '\0') {
2944 if (c == 'U' || c == 'L' || c == 'u' || c == 'l') {
2945 ;
2946 } else {
2947 voptgenerror
2948 (FLG_SYNTAX,
2949 message ("Invalid character (%c) following specifier in hex constant: %s",
2950 c, cstring_fromChars (yytext)),
2951 g_currentloc);
2952 }
2953 index++;
2954 }
2955
2956 break;
2957 } else {
2958 voptgenerror
2959 (FLG_SYNTAX,
2960 message ("Invalid character (%c) in hex constant: %s",
2961 c, cstring_fromChars (yytext)),
2962 g_currentloc);
2963 break;
2964 }
2965
2966 val = (val * 16) + tval;
2967 index++;
2968 }
2969
2970 DPRINTF (("Hex constant: %s = %ld", yytext, val));
2971 return val;
2972}
2973
2974static
2975long processOctal ()
2976{
2977 int index = 1;
2978 long val = 0;
2979
2980 llassert (yytext[0] == '0' && yytext[1] != 'X' && yytext[1] != 'x');
2981
2982 while (yytext[index] != '\0') {
2983 int tval;
2984 char c = yytext[index];
2985
2986 if (c >= '0' && c <= '7') {
2987 tval = (int) c - (int) '0';
ee229125 2988 } else if (c == 'U' || c == 'L' || c == 'u' || c == 'l') {
2989 index++;
2990 while (yytext[index] != '\0') {
2991 if (c == 'U' || c == 'L' || c == 'u' || c == 'l') {
2992 ;
2993 } else {
2994 voptgenerror
2995 (FLG_SYNTAX,
2996 message ("Invalid character (%c) following specifier in octal constant: %s",
2997 c, cstring_fromChars (yytext)),
2998 g_currentloc);
2999 }
3000 index++;
3001 }
3002
3003 break;
ac0860d8 3004 } else {
3005 voptgenerror
3006 (FLG_SYNTAX,
3007 message ("Invalid character (%c) in octal constant: %s",
3008 c, cstring_fromChars (yytext)),
3009 g_currentloc);
3010 break;
3011 }
3012
3013 val = (val * 8) + tval;
3014 index++;
3015 }
3016
3017 DPRINTF (("Octal constant: %s = %ld", yytext, val));
3018 return val;
3019}
3020
3021static
3022long processDec ()
3023{
3024 return (atol (yytext));
3025}
3026
3027static int
3028processSpec (int tok)
3029{
3030 size_t length = strlen (yytext);
3031
3032 if (inSpecPart)
3033 {
3034 setTokLengthT (length);
3035 RETURN_TOK (tok);
3036 }
3037 else
3038 {
3039
3040 context_saveLocation ();
3041 setTokLengthT (length);
3042 return (processIdentifier (makeIdentifier (yytext)));
3043 }
3044}
3045
3046void cscanner_expectingMetaStateName ()
3047{
3048 llassert (!expectingMetaStateName);
3049 llassert (context_inFunctionHeader ());
3050 expectingMetaStateName = TRUE;
3051}
3052
3053void cscanner_clearExpectingMetaStateName ()
3054{
3055 llassert (expectingMetaStateName);
3056 expectingMetaStateName = FALSE;
3057}
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