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885824d3 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4** Unpublished rights reserved under the copyright laws of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"
b7b694d6 63# include <unistd.h>
885824d3 64# include "basic.h"
65
885824d3 66# include "cgrammar.h"
67# include "cgrammar_tokens.h"
885824d3 68
69# include "fileIdList.h"
70# include "portab.h"
71
72# if defined(OS2) && defined(__IBMC__)
73 /* needed for isatty()... */
74# include <io.h>
75# endif
76
77static bool lastWasString = FALSE;
78static char savechar = '\0';
79
80/*@notfunction@*/
81# define yyinput() (incColumn (), getc (yyin))
82
885824d3 83static /*@owned@*/ cstring lastidprocessed = cstring_undefined;
885824d3 84static int lminput (void);
85static int tokLength = 0;
86static bool inSpecPart = FALSE;
87static bool continueLine = FALSE;
88
89static int ninput (void);
90static char processChar (void);
91static double processFloat (void);
92static /*@only@*/ exprNode processString (void);
93static long processDec (void);
94static long processHex (void);
95static long processOctal (void);
96static int processIdentifier (/*@only@*/ cstring)
97 /*@globals undef lastidprocessed@*/ ;
98static bool processHashIdentifier (/*@only@*/ cstring)
99 /*@globals undef lastidprocessed@*/ ;
100
101static int processSpec (int);
102static bool handleSpecial (char *);
103static int handleLlSpecial (void);
104static void handleMacro (void);
105static bool processMacro (void);
106static /*@only@*/ cstring makeIdentifier (char *);
107
108/* yes, this is exported! */
109bool g_expectingTypeName = TRUE; /* beginning of file can be type name! */
110
08eb3d0e 111static bool expectingMetaStateName = FALSE;
112
885824d3 113static int returnInt (ctype, long);
114static int returnFloat (ctype, double);
115static int returnChar (char);
116static void setTokLength (int) /*@modifies g_currentloc@*/ ;
117static void setTokLengthT (size_t) /*@modifies g_currentloc@*/ ;
118
119static void advanceLine (void)
120{
121 tokLength = 0;
122 beginLine ();
123}
124
125/*@-allmacros@*/
126# define RETURN_INT(c,i) \
127 do { lastWasString = FALSE; \
128 return (returnInt (c, i)); } while (FALSE)
129
130# define RETURN_FLOAT(c,f) \
131 do { lastWasString = FALSE; \
132 return (returnFloat (c, f)); \
133 } while (FALSE)
134
135# define RETURN_CHAR(c) \
136 do { lastWasString = FALSE; \
137 return (returnChar (c)); \
138 } while (FALSE)
139
140# define RETURN_TOK(t) \
141 do { yylval.tok = lltok_create (t, fileloc_decColumn (g_currentloc, tokLength)); \
142 tokLength = 0; \
143 lastWasString = FALSE; \
144 return (t); } while (FALSE)
145
146# define RETURN_TYPE(t, ct) \
147 do { yylval.ctyp = ct; tokLength = 0; return (t); } while (FALSE)
148
149/* don't fileloc_decColumn (g_currentloc, tokLength));
150 the string could have \n's in it!
151*/
152
153# define RETURN_STRING(c) \
154 do { yylval.expr = exprNode_stringLiteral (c, fileloc_decColumn (g_currentloc, tokLength)); \
155 tokLength = 0; \
156 lastWasString = TRUE; \
157 return (CCONSTANT); } while (FALSE)
158
159# define RETURN_EXPR(e) \
160 do { yylval.expr = e; \
161 tokLength = 0; \
162 lastWasString = TRUE; \
163 return (CCONSTANT); } while (FALSE)
164
165/*@=allmacros@*/
166
167static void setTokLength (int len)
168{
169 addColumn (len);
170 tokLength = len;
171}
172
173static void setTokLengthT (size_t len)
174{
175 setTokLength (size_toInt (len));
176}
177
178# include "flex.head"
28bf4b0b 179
180/*@-unrecog@*/ /*@i5343@*/
181
885824d3 182%}
183
184%%
185
186"/*" { llfatalbug (cstring_makeLiteral ("Comment in pre-processor output")); }
187
188"#"{Letter}({Letter}|{Digit})* {
189 context_saveLocation ();
190 setTokLength (longUnsigned_toInt (mstring_length (yytext)));
191
192 if (processHashIdentifier (makeIdentifier (yytext + 1)))
193 {
194 if (lastWasString)
195 {
28bf4b0b 196 /* was nothing! */ /*@i32@*/
197 RETURN_STRING (cstring_makeLiteral ("\"\""));
885824d3 198 }
199 else
200 {
201 RETURN_STRING (cstring_makeLiteral ("\"\""));
202 }
203 }
204 else
205 {
206 if (handleSpecial (yytext))
207 {
208 setTokLength (1);
209 RETURN_TOK (0);
210 }
211 }
212 }
213"#" { if (handleSpecial (yytext))
214 {
215 setTokLength (1); RETURN_TOK (0);
216 }
217 }
218"..." { setTokLength (3); RETURN_TOK (CTOK_ELIPSIS); }
219"break" { setTokLength (5); RETURN_TOK (BREAK); }
220"case" { setTokLength (4); RETURN_TOK (CASE); }
221"continue" { setTokLength (8); RETURN_TOK (CONTINUE); }
222"default" { setTokLength (7); RETURN_TOK (DEFAULT); }
223"do" { setTokLength (2); RETURN_TOK (DO); }
224"else" { setTokLength (4); RETURN_TOK (CELSE); }
225"for" { setTokLength (3); RETURN_TOK (CFOR); }
226"goto" { setTokLength (4); RETURN_TOK (GOTO); }
227"if" { setTokLength (2); RETURN_TOK (CIF); }
228"return" { setTokLength (6); RETURN_TOK (RETURN); }
229"sizeof" { setTokLength (6); RETURN_TOK (CSIZEOF); }
230"offsetof" { setTokLength (8); RETURN_TOK (COFFSETOF); }
231"switch" { setTokLength (6); RETURN_TOK (SWITCH); }
232"while" { setTokLength (5); RETURN_TOK (WHILE); }
233"va_arg" { setTokLength (6); RETURN_TOK (VA_ARG); }
234"va_dcl" { setTokLength (6); RETURN_TOK (VA_DCL); }
235"inline" {
236 /* gcc extension...this might not be appropriate */
237 setTokLength (6); RETURN_TOK (QINLINE); }
238
239"struct" { setTokLength (6); RETURN_TOK (CSTRUCT); }
240"typedef" { setTokLength (7); RETURN_TOK (CTYPEDEF); }
241
242"union" { setTokLength (5); RETURN_TOK (CUNION); }
243"enum" { setTokLength (4); RETURN_TOK (CENUM); }
244
245"void" { setTokLength (4); RETURN_TYPE (CVOID, ctype_void); }
246"int" { setTokLength (3); RETURN_TYPE (CINT, ctype_int); }
247"double" { setTokLength (6); RETURN_TYPE (CDOUBLE, ctype_double); }
248"char" { setTokLength (4); RETURN_TYPE (CGCHAR, ctype_char); }
249"float" { setTokLength (5); RETURN_TYPE (CGFLOAT, ctype_float); }
250
251"long" { setTokLength (4); RETURN_TOK (QLONG); }
252"short" { setTokLength (5); RETURN_TOK (QSHORT); }
253"unsigned" { setTokLength (8); RETURN_TOK (QUNSIGNED); }
254"signed" { setTokLength (6); RETURN_TOK (QSIGNED); }
255
256"volatile" { setTokLength (8); RETURN_TOK (QVOLATILE); }
257"const" { setTokLength (5); RETURN_TOK (QCONST); }
258
259 /* some systems expect this! [gack!] */
260"__const" { setTokLength (7); RETURN_TOK (QCONST); }
261
262"extern" { setTokLength (6); RETURN_TOK (QEXTERN); }
263"auto" { setTokLength (4); RETURN_TOK (QAUTO); }
264"register" { setTokLength (8); RETURN_TOK (QREGISTER); }
265"static" { setTokLength (6); RETURN_TOK (QSTATIC); }
266
267\"(\\.|[^\\"])*\"([ \t\n]*\"(\\.|[^\\"])*\")* { RETURN_EXPR (processString ()); }
7b1629ab 268L\"(\\.|[^\\"])*\"([ \t\n]*\"(\\.|[^\\"])*\")* { RETURN_EXPR (processString ()); }
885824d3 269"out" { return (processSpec (QOUT)); }
270"in" { return (processSpec (QIN)); }
271"partial" { return (processSpec (QPARTIAL)); }
272"special" { return (processSpec (QSPECIAL)); }
273"anytype" { return (processSpec (QANYTYPE)); }
274"integraltype" { return (processSpec (QINTEGRALTYPE)); }
275"unsignedintegraltype" { return (processSpec (QUNSIGNEDINTEGRALTYPE)); }
276"signedintegraltype" { return (processSpec (QSIGNEDINTEGRALTYPE)); }
277"keep" { return (processSpec (QKEEP)); }
278"null" { return (processSpec (QNULL)); }
279"notnull" { return (processSpec (QNOTNULL)); }
280"isnull" { return (processSpec (QISNULL)); }
281"truenull" { return (processSpec (QTRUENULL)); }
282"falsenull" { return (processSpec (QFALSENULL)); }
283"relnull" { return (processSpec (QRELNULL)); }
284"reldef" { return (processSpec (QRELDEF)); }
285"exposed" { return (processSpec (QEXPOSED)); }
286"newref" { return (processSpec (QNEWREF)); }
287"tempref" { return (processSpec (QTEMPREF)); }
288"killref" { return (processSpec (QKILLREF)); }
289"refcounted" { return (processSpec (QREFCOUNTED)); }
290"checked" { return (processSpec (QCHECKED)); }
291"checkmod" { return (processSpec (QCHECKMOD)); }
292"checkedstrict" { return (processSpec (QCHECKEDSTRICT)); }
293"unchecked" { return (processSpec (QUNCHECKED)); }
294"only" { return (processSpec (QONLY)); }
295"owned" { return (processSpec (QOWNED)); }
296"observer" { return (processSpec (QOBSERVER)); }
297"dependent" { return (processSpec (QDEPENDENT)); }
298"unused" { return (processSpec (QUNUSED)); }
299"external" { return (processSpec (QEXTERNAL)); }
300"sef" { return (processSpec (QSEF)); }
301"shared" { return (processSpec (QSHARED)); }
302"yield" { return (processSpec (QYIELD)); }
303"undef" { return (processSpec (QUNDEF)); }
304"killed" { return (processSpec (QKILLED)); }
1ac6313d 305"nullterminated" { return (processSpec (QNULLTERMINATED));}
93307a76 306"MaxSet" { return (processSpec (QMAXSET));}
7272a1c1 307"MaxRead" { return (processSpec (QMAXREAD));}
308"maxSet" { return (processSpec (QMAXSET));}
309"maxRead" { return (processSpec (QMAXREAD));}
11ed4f45 310
885824d3 311{Letter}({Letter}|{Digit})* { int tok;
312 context_saveLocation ();
313 setTokLength (longUnsigned_toInt (mstring_length (yytext)));
314 tok = processIdentifier (makeIdentifier (yytext));
315 if (tok != BADTOK)
316 {
317 return (tok);
318 }
319 }
3200[xX]{H}+ { setTokLengthT (mstring_length (yytext));
321 RETURN_INT (ctype_int, processHex ()); /* evs 2000-05-17 was ctype_uint */
322 }
3230[xX]{H}+{L} { setTokLengthT (mstring_length (yytext));
324 RETURN_INT (ctype_lint, processHex ()); }
3250[xX]{H}+{L}{L} { setTokLengthT (mstring_length (yytext));
326 RETURN_INT (ctype_llint, processHex ()); }
3270[xX]{H}+{U} { setTokLengthT (mstring_length (yytext));
328 RETURN_INT (ctype_uint, processHex ()); }
3290[xX]{H}+{ULSuffix} { setTokLengthT (mstring_length (yytext));
330 RETURN_INT (ctype_ulint, processHex ()); }
3310[xX]{H}+{U}{L}{L} { setTokLengthT (mstring_length (yytext));
332 RETURN_INT (ctype_ullint, processHex ()); }
3330[xX]{H}+{L}{L}{U} { setTokLengthT (mstring_length (yytext));
334 RETURN_INT (ctype_ullint, processHex ()); }
3350{Digit}+ { setTokLengthT (mstring_length (yytext));
336 RETURN_INT (ctype_int, processOctal ()); }
3370{Digit}+{U} { setTokLengthT (mstring_length (yytext));
338 RETURN_INT (ctype_uint, processOctal ()); }
3390{Digit}+{L} { setTokLengthT (mstring_length (yytext));
340 RETURN_INT (ctype_lint, processOctal ()); }
3410{Digit}+{L}{L} { setTokLengthT (mstring_length (yytext));
342 RETURN_INT (ctype_llint, processOctal ()); }
3430{Digit}+{ULSuffix} { setTokLengthT (mstring_length (yytext));
344 RETURN_INT (ctype_ulint, processOctal ()); }
3450{Digit}+{U}{L}{L} { setTokLengthT (mstring_length (yytext));
346 RETURN_INT (ctype_ullint, processOctal ()); }
3470{Digit}+{L}{L}{U} { setTokLengthT (mstring_length (yytext));
348 RETURN_INT (ctype_ullint, processOctal ()); }
349{Digit}+ { setTokLengthT (mstring_length (yytext));
350 RETURN_INT (ctype_int, processDec ()); }
351{Digit}+{U} { setTokLengthT (mstring_length (yytext));
352 RETURN_INT (ctype_uint, processDec ()); }
353{Digit}+{L} { setTokLengthT (mstring_length (yytext));
354 RETURN_INT (ctype_lint, processDec ()); }
355{Digit}+{L}{L} { setTokLengthT (mstring_length (yytext));
356 RETURN_INT (ctype_llint, processDec ()); }
357{Digit}+{ULSuffix} { setTokLengthT (mstring_length (yytext));
358 RETURN_INT (ctype_ulint, processDec ()); }
359{Digit}+{U}{L}{L} { setTokLengthT (mstring_length (yytext));
360 RETURN_INT (ctype_ullint, processDec ()); }
361{Digit}+{L}{L}{U} { setTokLengthT (mstring_length (yytext));
362 RETURN_INT (ctype_ullint, processDec ()); }
363'(\\.|[^\\'])+' { setTokLengthT (mstring_length (yytext));
364 RETURN_CHAR (processChar ()); }
1d239d69 365L'(\\.|[^\\'])+' { setTokLengthT (mstring_length (yytext));
366 RETURN_CHAR (processChar ()); }
885824d3 367{Digit}+{E}[fF] { setTokLengthT (mstring_length (yytext));
368 RETURN_FLOAT (ctype_float, processFloat ()); }
369{Digit}+{E}[lL] { setTokLengthT (mstring_length (yytext));
370 RETURN_FLOAT (ctype_ldouble, processFloat ()); }
371{Digit}+{E} { setTokLengthT (mstring_length (yytext));
372 RETURN_FLOAT (ctype_double, processFloat ()); }
373
374{Digit}*"."{Digit}+({E})?[fF] { setTokLengthT (mstring_length (yytext));
375 RETURN_FLOAT (ctype_float, processFloat ()); }
376{Digit}*"."{Digit}+({E})?[lL] { setTokLengthT (mstring_length (yytext));
377 RETURN_FLOAT (ctype_ldouble, processFloat ()); }
378{Digit}*"."{Digit}+({E})? { setTokLengthT (mstring_length (yytext));
379 RETURN_FLOAT (ctype_double, processFloat ()); }
380
381{Digit}+"."{Digit}*({E})?[fF] { setTokLengthT (mstring_length (yytext));
382 RETURN_FLOAT (ctype_float, processFloat ()); }
383{Digit}+"."{Digit}*({E})?[lL] { setTokLengthT (mstring_length (yytext));
384 RETURN_FLOAT (ctype_ldouble, processFloat ()); }
385{Digit}+"."{Digit}*({E})? { setTokLengthT (mstring_length (yytext));
386 RETURN_FLOAT (ctype_double, processFloat ()); }
387
388">>=" { setTokLength (3); RETURN_TOK (RIGHT_ASSIGN); }
389"<<=" { setTokLength (3); RETURN_TOK (LEFT_ASSIGN); }
390"+=" { setTokLength (2); RETURN_TOK (ADD_ASSIGN); }
391"-=" { setTokLength (2); RETURN_TOK (SUB_ASSIGN); }
392"*=" { setTokLength (2); RETURN_TOK (MUL_ASSIGN); }
393"/=" { setTokLength (2); RETURN_TOK (DIV_ASSIGN); }
394"%=" { setTokLength (2); RETURN_TOK (MOD_ASSIGN); }
395"&=" { setTokLength (2); RETURN_TOK (AND_ASSIGN); }
396"^=" { setTokLength (2); RETURN_TOK (XOR_ASSIGN); }
397"|=" { setTokLength (2); RETURN_TOK (OR_ASSIGN); }
398">>" { setTokLength (2); RETURN_TOK (RIGHT_OP); }
399"<<" { setTokLength (2); RETURN_TOK (LEFT_OP); }
400"++" { setTokLength (2); RETURN_TOK (INC_OP); }
401"--" { setTokLength (2); RETURN_TOK (DEC_OP); }
402"->" { setTokLength (2); RETURN_TOK (ARROW_OP); }
403"&&" { setTokLength (2); RETURN_TOK (AND_OP); }
404"||" { setTokLength (2); RETURN_TOK (OR_OP); }
405"<=" { setTokLength (2); RETURN_TOK (LE_OP); }
406">=" { setTokLength (2); RETURN_TOK (GE_OP); }
407"==" { setTokLength (2); RETURN_TOK (EQ_OP); }
408"!=" { setTokLength (2); RETURN_TOK (NE_OP); }
409";" { setTokLength (1); RETURN_TOK (TSEMI); }
410"{" { setTokLength (1); RETURN_TOK (TLBRACE); }
411"}" { setTokLength (1); RETURN_TOK (TRBRACE); }
412"," { setTokLength (1); RETURN_TOK (TCOMMA); }
413":" { setTokLength (1); RETURN_TOK (TCOLON); }
414"=" { setTokLength (1); RETURN_TOK (TASSIGN); }
415"(" { setTokLength (1); RETURN_TOK (TLPAREN); }
416")" { setTokLength (1); RETURN_TOK (TRPAREN); }
417"[" { setTokLength (1); RETURN_TOK (TLSQBR); }
418"]" { setTokLength (1); RETURN_TOK (TRSQBR); }
419"." { setTokLength (1); RETURN_TOK (TDOT); }
420"&" { setTokLength (1); RETURN_TOK (TAMPERSAND); }
421"!" { setTokLength (1); RETURN_TOK (TEXCL); }
422
423
424"~" { setTokLength (1); RETURN_TOK (TTILDE); }
425"-" { setTokLength (1); RETURN_TOK (TMINUS); }
426"+" { setTokLength (1); RETURN_TOK (TPLUS); }
427"*" { setTokLength (1); RETURN_TOK (TMULT); }
428"/" { setTokLength (1); RETURN_TOK (TDIV); }
429"%" { setTokLength (1); RETURN_TOK (TPERCENT); }
430"<" { setTokLength (1); RETURN_TOK (TLT); }
431">" { setTokLength (1); RETURN_TOK (TGT); }
432"^" { setTokLength (1); RETURN_TOK (TCIRC); }
433"|" { setTokLength (1); RETURN_TOK (TBAR); }
434"?" { setTokLength (1); RETURN_TOK (TQUEST); }
435
dcaf75ea 436
437"/\\" { setTokLength (1); RETURN_TOK (TCAND); }
438
439
885824d3 440[ \t\v\f] { incColumn (); }
441\n { context_incLineno ();
442 if (continueLine)
443 {
444 continueLine = FALSE;
445 }
446 else
447 {
448 if (context_inMacro ())
449 {
450 /* Don't use RETURN_TOK */
451 yylval.tok = lltok_create (TENDMACRO, g_currentloc);
452 lastWasString = FALSE;
453 return (TENDMACRO);
454 }
455 }
456 }
457"@@MR@@" { setTokLength (6);
458
459 if (processMacro ()) {
460 if (context_inIterDef ())
461 {
462 RETURN_TOK (LLMACROITER);
463 }
464 if (context_inIterEnd ())
465 {
466 RETURN_TOK (LLMACROEND);
467 }
468 if (context_inMacro ())
469 {
470 RETURN_TOK (LLMACRO);
471 }
472 }
473 }
474"@QLMR" { if (context_inHeader () || context_inFunction ())
475 {
476 handleMacro ();
477 }
478 else
479 {
480 int nspchar = ninput ();
481 int nspaces;
482
483 /*
484 ** This is a hack to get the column number correct.
485 */
486
487 llassert (nspchar >= '0' && nspchar <= '9');
488
489 nspaces = nspchar - '0';
490
491 setTokLength (5 + nspaces);
492
493 if (processMacro ())
494 {
495 if (context_inIterDef ())
496 {
497 RETURN_TOK (LLMACROITER);
498 }
499 if (context_inIterEnd ())
500 {
501 RETURN_TOK (LLMACROEND);
502 }
503 if (context_inMacro ())
504 {
505 RETURN_TOK (LLMACRO);
506 }
507 }
508 }
509 }
510"@.CT" { setTokLength (4); lldiagmsg (ctype_unparseTable ()); }
28bf4b0b 511"@.FA" { setTokLength (4); lldiagmsg (message ("Access types: %q", typeIdSet_unparse (context_fileAccessTypes ()))); }
885824d3 512"@.F" { setTokLength (3);
513 lldiagmsg (message ("%q: *** marker ***", fileloc_unparse (g_currentloc)));
514 }
515"@.L" { setTokLength (3); usymtab_printLocal (); }
516"@.A" { setTokLength (3); lldiagmsg (usymtab_unparseAliases ()); }
517"@.C" { setTokLength (3); lldiagmsg (context_unparse ()); }
518"@.W" { setTokLength (3); lldiagmsg (context_unparseClauses ()); }
519"@.G" { setTokLength (3); usymtab_printGuards (); }
520"@.S" { setTokLength (3); usymtab_printOut (); }
521"@.X" { setTokLength (3); usymtab_printAll (); }
522"@.Z" { setTokLength (3); usymtab_printComplete (); }
523"@.T" { setTokLength (3); usymtab_printTypes (); }
524"@.K" { setTokLength (3); lldiagmsg (usymtab_unparseStack ()); }
525"@.M" { setTokLength (3);
526 lldiagmsg (message ("Can modify: %q",
527 sRefSet_unparse (context_modList ())));
528 }
529"%{" { /* BEFORE_COMMENT_MARKER */
530 int tok;
531 incColumn (); incColumn ();
532 tok = handleLlSpecial ();
28bf4b0b 533
885824d3 534 if (tok != BADTOK)
535 {
28bf4b0b 536 if (tok == CANNOTATION) {
537 return (tok);
538 } else {
539 /* Beware - this bashes yylval! */
540 RETURN_TOK (tok);
541 }
885824d3 542 }
543 }
544"%}" { /* AFTER_COMMENT_MARKER */
545 setTokLength (2);
546 inSpecPart = FALSE;
547 RETURN_TOK (QENDMACRO); }
548"\\" { incColumn (); continueLine = TRUE; }
549. { incColumn ();
28bf4b0b 550 if ((int) *yytext == 13 ) {
551 ;
552 } else {
553 voptgenerror
554 (FLG_SYNTAX,
555 message ("Invalid character (ascii: %d), skipping character",
556 (int)(*yytext)),
557 g_currentloc);
558 }
885824d3 559 }
560%%
561
562struct skeyword
563{
564 /*@null@*/ /*@observer@*/ char *name;
565 int token;
566} ;
567
568/*
569** These tokens are followed by syntax that is parsed by the
570** grammar proper.
571*/
572
573struct skeyword s_parsetable[] = {
574 { "modifies", QMODIFIES } ,
575 { "globals", QGLOBALS } ,
576 { "alt", QALT } ,
28bf4b0b 577 { "warn", QWARN } ,
885824d3 578 { "constant", QCONSTANT } ,
579 { "function", QFUNCTION } ,
580 { "iter", QITER } ,
581 { "defines", QDEFINES } ,
582 { "uses", QUSES } ,
583 { "allocates", QALLOCATES } ,
584 { "sets", QSETS } ,
585 { "releases", QRELEASES } ,
586 { "pre", QPRECLAUSE } ,
587 { "post", QPOSTCLAUSE } ,
60eced23 588 { "setBufferSize", QSETBUFFERSIZE},
60eced23 589 { "setStringLength", QSETSTRINGLENGTH},
590 { "testinRange", QTESTINRANGE},
28bf4b0b 591 { "requires", QPRECLAUSE } ,
592 { "ensures", QPOSTCLAUSE } ,
593 { NULL, BADTOK }
885824d3 594} ;
595
596/*
597** These tokens are either stand-alone tokens, or followed by
598** token-specific text.
599*/
600
601struct skeyword s_keytable[] = {
602 { "anytype", QANYTYPE } ,
603 { "integraltype", QINTEGRALTYPE } ,
604 { "unsignedintegraltype", QUNSIGNEDINTEGRALTYPE } ,
605 { "signedintegraltype", QSIGNEDINTEGRALTYPE } ,
606 { "out", QOUT } ,
607 { "in", QIN } ,
608 { "only", QONLY } ,
609 { "owned", QOWNED } ,
610 { "dependent", QDEPENDENT } ,
611 { "partial", QPARTIAL } ,
612 { "special", QSPECIAL } ,
613 { "truenull", QTRUENULL } ,
614 { "falsenull", QFALSENULL } ,
615 { "keep", QKEEP } ,
616 { "kept", QKEPT } ,
617 { "notnull", QNOTNULL } ,
618 { "abstract", QABSTRACT } ,
619 { "concrete", QCONCRETE } ,
620 { "mutable", QMUTABLE } ,
621 { "immutable", QIMMUTABLE } ,
622 { "unused", QUNUSED } ,
623 { "external", QEXTERNAL } ,
624 { "sef", QSEF } ,
625 { "unique", QUNIQUE } ,
626 { "returned", QRETURNED } ,
627 { "exposed", QEXPOSED } ,
628 { "refcounted", QREFCOUNTED } ,
629 { "refs", QREFS } ,
630 { "newref", QNEWREF } ,
631 { "tempref", QTEMPREF } ,
632 { "killref", QKILLREF } ,
633 { "null", QNULL } ,
634 { "relnull", QRELNULL } ,
1ac6313d 635 { "nullterminated", QNULLTERMINATED },
11ed4f45 636 { "setBufferSize", QSETBUFFERSIZE },
a0a162cd 637 { "testInRange", QTESTINRANGE},
93307a76 638 { "MaxSet", QMAXSET},
639 { "MaxRead", QMAXREAD},
885824d3 640 { "reldef", QRELDEF } ,
641 { "observer", QOBSERVER } ,
642 { "exits", QEXITS } ,
643 { "mayexit", QMAYEXIT } ,
644 { "trueexit", QTRUEEXIT } ,
645 { "falseexit", QFALSEEXIT } ,
646 { "neverexit", QNEVEREXIT } ,
647 { "temp", QTEMP } ,
648 { "shared", QSHARED } ,
649 { "ref", QREF } ,
650 { "unchecked", QUNCHECKED } ,
651 { "checked", QCHECKED } ,
652 { "checkmod", QCHECKMOD } ,
653 { "checkedstrict", QCHECKEDSTRICT } ,
654 { "innercontinue", QINNERCONTINUE } ,
655 { "innerbreak", QINNERBREAK } ,
656 { "loopbreak", QLOOPBREAK } ,
657 { "switchbreak", QSWITCHBREAK } ,
658 { "safebreak", QSAFEBREAK } ,
659 { "fallthrough", QFALLTHROUGH } ,
660 { "l_fallthrou", QLINTFALLTHROUGH } ,
661 { "l_fallth", QLINTFALLTHRU } ,
662 { "notreached", QNOTREACHED } ,
663 { "l_notreach", QLINTNOTREACHED } ,
664 { "printflike", QPRINTFLIKE } ,
665 { "l_printfli", QLINTPRINTFLIKE } ,
666 { "scanflike", QSCANFLIKE } ,
667 { "messagelike", QMESSAGELIKE } ,
668 { "l_argsus", QARGSUSED } ,
669 { NULL, BADTOK }
670} ;
671
672/*
673** would be better if these weren't hard coded...
674*/
675
676static bool isArtificial (cstring s)
677{
678 return (cstring_equalLit (s, "modifies")
679 || cstring_equalLit (s, "globals")
28bf4b0b 680 || cstring_equalLit (s, "warn")
885824d3 681 || cstring_equalLit (s, "alt"));
682}
683
684void swallowMacro (void)
685{
686 int i;
687 bool skipnext = FALSE;
688
689 while ((i = lminput ()) != EOF)
690 {
691 char c = (char) i;
692
693
694 if (c == '\\')
695 {
696 skipnext = TRUE;
697 }
698 else if (c == '\n')
699 {
700 if (skipnext)
701 {
702 skipnext = FALSE;
703 }
704 else
705 {
28bf4b0b 706 reader_checkUngetc (i, yyin);
885824d3 707 return;
708 }
709 }
710 }
711
712 if (i != EOF)
713 {
28bf4b0b 714 reader_checkUngetc (i, yyin);
885824d3 715 }
716}
717
718static int commentMarkerToken (cstring s)
719{
720 int i = 0;
721
722 while (s_parsetable[i].name != NULL)
723 {
28bf4b0b 724 DPRINTF (("Try :%s:%s:", s, s_parsetable[i].name));
725
885824d3 726 if (cstring_equalLit (s, s_parsetable[i].name))
727 {
728 return s_parsetable[i].token;
729 }
730
731 i++;
732 }
733
734 return BADTOK;
735}
736
737static int tokenMacroCode (cstring s)
738{
739 int i = 0;
740
741 while (s_keytable[i].name != NULL)
742 {
743 if (cstring_equalLit (s, s_keytable[i].name))
744 {
745 if (s_keytable[i].token == QLINTFALLTHROUGH)
746 {
747 voptgenerror
748 (FLG_WARNLINTCOMMENTS,
749 cstring_makeLiteral
750 ("Traditional lint comment /*FALLTHROUGH*/ used. "
751 "This is interpreted by "
752 "LCLint in the same way as most Unix lints, but it is "
753 "preferable to replace it with the /*@fallthrough@*/ "
28bf4b0b 754 "semantic comment"),
885824d3 755 g_currentloc);
756 return QFALLTHROUGH;
757 }
758 else if (s_keytable[i].token == QLINTFALLTHRU)
759 {
760 voptgenerror
761 (FLG_WARNLINTCOMMENTS,
762 cstring_makeLiteral
763 ("Traditional lint comment /*FALLTHRU*/ used. "
764 "This is interpreted by "
765 "LCLint in the same way as most Unix lints, but it is "
766 "preferable to replace it with the /*@fallthrough@*/ "
28bf4b0b 767 "semantic comment"),
885824d3 768 g_currentloc);
769 return QFALLTHROUGH;
770 }
771 else if (s_keytable[i].token == QLINTNOTREACHED)
772 {
773 voptgenerror
774 (FLG_WARNLINTCOMMENTS,
775 cstring_makeLiteral
776 ("Traditional lint comment /*NOTREACHED*/ used. "
777 "This is interpreted by "
778 "LCLint in the same way as most Unix lints, but it is "
779 "preferable to replace it with the /*@notreached@*/ "
28bf4b0b 780 "semantic comment."),
885824d3 781 g_currentloc);
782
783 return QNOTREACHED;
784 }
785 else if (s_keytable[i].token == QPRINTFLIKE)
786 {
28bf4b0b 787 setSpecialFunction (qual_createPrintfLike ());
885824d3 788 return SKIPTOK;
789 }
790 else if (s_keytable[i].token == QLINTPRINTFLIKE)
791 {
792 voptgenerror
793 (FLG_WARNLINTCOMMENTS,
794 cstring_makeLiteral
795 ("Traditional lint comment /*PRINTFLIKE*/ used. "
796 "This is interpreted by "
797 "LCLint in the same way as most Unix lints, but it is "
798 "preferable to replace it with either /*@printflike@*/, "
799 "/*@scanflike@*/ or /*@messagelike@*/."),
800 g_currentloc);
801
28bf4b0b 802 setSpecialFunction (qual_createPrintfLike ());
885824d3 803 return SKIPTOK;
804 }
805 else if (s_keytable[i].token == QSCANFLIKE)
806 {
28bf4b0b 807 setSpecialFunction (qual_createScanfLike ());
885824d3 808 return SKIPTOK;
809 }
810 else if (s_keytable[i].token == QMESSAGELIKE)
811 {
28bf4b0b 812 setSpecialFunction (qual_createMessageLike ());
885824d3 813 return SKIPTOK;
814 }
815 else if (s_keytable[i].token == QARGSUSED)
816 {
817 voptgenerror
818 (FLG_WARNLINTCOMMENTS,
819 cstring_makeLiteral
820 ("Traditional lint comment /*ARGSUSED*/ used. "
821 "This is interpreted by "
822 "LCLint in the same way as most Unix lints, but it is "
823 "preferable to use /*@unused@*/ annotations on "
824 "the unused parameters."),
825 g_currentloc);
826
827 setArgsUsed ();
828 return SKIPTOK;
829 }
830
831 return s_keytable[i].token;
832 }
833
834 i++;
835 }
836
837 return BADTOK;
838}
839
840static int lminput ()
841{
842 if (savechar == '\0')
843 {
844 incColumn ();
845 return (input ());
846 }
847 else
848 {
849 int save = (int) savechar;
850 savechar = '\0';
851 return save;
852 }
853}
854
855static void lmsavechar (char c)
856{
857 if (savechar == '\0') savechar = c;
858 else
859 {
860 llbuglit ("lmsavechar: override");
861 }
862}
863
864static int returnFloat (ctype ct, double f)
865{
866 yylval.expr = exprNode_floatLiteral (f, ct, cstring_fromChars (yytext),
867 fileloc_decColumn (g_currentloc, tokLength));
868 tokLength = 0;
869 return (CCONSTANT);
870}
871
872static int returnInt (ctype ct, long i)
873{
874 ctype c = ct;
875
876 if (ctype_equal (ct, ctype_int))
877 {
878 if (i == 0)
879 {
880 c = context_typeofZero ();
881 }
882 else if (i == 1)
883 {
884 c = context_typeofOne ();
885 }
886 }
887
888 yylval.expr = exprNode_numLiteral (c, cstring_fromChars (yytext),
889 fileloc_decColumn (g_currentloc, tokLength), i);
890 tokLength = 0;
891 return (CCONSTANT);
892}
893
894static int returnChar (char c)
895{
896 yylval.expr = exprNode_charLiteral (c, cstring_fromChars (yytext),
897 fileloc_decColumn (g_currentloc, tokLength));
898 tokLength = 0;
899 return (CCONSTANT);
900}
901
902static int ninput ()
903{
904 int c = lminput ();
905
906 if (c != EOF && ((char)c == '\n'))
907 {
908 context_incLineno ();
909 }
910
911 return c;
912}
913
914static char macro_nextChar ()
915{
916 static bool in_quote = FALSE, in_escape = FALSE, in_char = FALSE;
917 int ic;
918 char c;
919
920 ic = lminput ();
921 c = char_fromInt (ic);
922
923 if (!in_quote && !in_char && (c == '\\' || c == BEFORE_COMMENT_MARKER[0]))
924 {
925 if (c == '\\')
926 {
927 while ((c = char_fromInt (lminput ())) != '\0' && c != '\n')
928 {
929 ; /* skip to newline */
930 }
931
932 context_incLineno ();
933
934 if (c != '\0')
935 {
936 return macro_nextChar ();
937 }
938 else
939 {
940 return c;
941 }
942 }
943 else /* if (c == '@') */
944 {
28bf4b0b 945 llassert (FALSE); /*@i23@*/
885824d3 946 if (handleLlSpecial () != BADTOK)
947 {
948 llerrorlit (FLG_SYNTAX, "Macro cannot use special syntax");
949 }
950
951 return macro_nextChar ();
952 }
953 }
954 else if (!in_escape && c == '\"')
955 {
956 in_quote = !in_quote;
957 }
958 else if (!in_escape && c == '\'')
959 {
960 in_char = !in_char;
961 }
962 else if ((in_quote || in_char) && c == '\\')
963 {
964 in_escape = !in_escape;
965 }
966 else if ((in_quote || in_char) && in_escape)
967 {
968 in_escape = FALSE;
969 }
970 else if (!in_quote && c == '/')
971 {
972 char c2;
973
974 if ((c2 = char_fromInt (lminput ())) == '*')
975 {
976 while (c2 != '\0')
977 {
978 while ((c2 = char_fromInt (lminput ())) != '\0'
979 && c2 != '\n' && c2 != '*')
980 {
981 ;
982 }
983
984 if (c2 == '*')
985 {
986 while ((c2 = char_fromInt (lminput ())) != '\0'
987 && c2 == '*')
988 {
989 ;
990 }
991
992 if (c2 == '/')
993 {
994 goto outofcomment;
995 }
996 }
997 else
998 {
999 llfatalerror (cstring_makeLiteral ("Macro: bad comment!"));
1000 }
1001 }
1002 outofcomment:
1003 return macro_nextChar ();
1004 }
1005 else
1006 {
1007 /*** putchar does not work! why? puts to stdio...??! ***/
1008 lmsavechar (c2);
1009 }
1010 }
1011 return c;
1012}
1013
1014/*
28bf4b0b 1015** keeps semantic comments
885824d3 1016*/
1017
1018static char macro_nextCharC ()
1019{
1020 static bool in_quote = FALSE, in_escape = FALSE, in_char = FALSE;
1021 char c;
1022
1023 c = char_fromInt (lminput ());
1024
1025 if (!in_quote && !in_char && c == '\\')
1026 {
1027 while ((c = char_fromInt (lminput ())) != '\0' && c != '\n')
1028 {
1029 ; /* skip to newline */
1030 }
1031
1032 context_incLineno ();
1033
1034 if (c != '\0')
1035 {
1036 return macro_nextCharC ();
1037 }
1038 else
1039 {
1040 return c;
1041 }
1042 }
1043 else if (!in_escape && c == '\"')
1044 {
1045 in_quote = !in_quote;
1046 }
1047 else if (!in_escape && c == '\'')
1048 {
1049 in_char = !in_char;
1050 }
1051 else if ((in_quote || in_char) && c == '\\')
1052 {
1053 in_escape = !in_escape;
1054 }
1055 else if ((in_quote || in_char) && in_escape)
1056 {
1057 in_escape = FALSE;
1058 }
1059 else if (!in_quote && c == '/')
1060 {
1061 char c2;
1062
1063 if ((c2 = char_fromInt (lminput ())) == '*')
1064 {
1065 while (c2 != '\0')
1066 {
1067 while ((c2 = char_fromInt (lminput ())) != '\0'
1068 && c2 != '\n' && c2 != '*')
1069 {
1070 ;
1071 }
1072
1073 if (c2 == '*')
1074 {
1075 while ((c2 = char_fromInt (lminput ())) != '\0'
1076 && c2 == '*')
1077 {
1078 ;
1079 }
1080
1081 if (c2 == '/')
1082 {
1083 goto outofcomment;
1084 }
1085 }
1086 else
1087 {
1088 llfatalerror (cstring_makeLiteral ("Macro: bad comment!"));
1089 }
1090 }
1091 outofcomment:
1092 return macro_nextCharC ();
1093 }
1094 else
1095 {
1096 lmsavechar (c2);
1097 }
1098 }
1099 return c;
1100}
1101
1102/*
1103** skips whitespace (handles line continuations)
1104** returns first non-whitespace character
1105*/
1106
1107static char skip_whitespace ()
1108{
1109 char c;
1110
1111 while ((c = macro_nextChar ()) == ' ' || c == '\t')
1112 {
1113 ;
1114 }
1115
1116 return c;
1117}
1118
1119static void handleMacro ()
1120{
1121 cstring mac = cstring_undefined;
1122 int macrocode;
1123 char c;
1124
1125 while (currentColumn () > 2)
1126 {
1127 mac = cstring_appendChar (mac, ' ');
1128 setTokLength (-1);
1129 }
1130
1131 c = macro_nextCharC ();
1132
1133 if (c >= '0' && c <= '9')
1134 {
1135 int i;
1136
1137 for (i = 0; i < ((c - '0') + 1); i++)
1138 {
1139 mac = cstring_appendChar (mac, ' ');
1140 }
1141 }
1142 else
1143 {
1144 BADBRANCH;
1145 }
1146
1147 while (((c = macro_nextCharC ()) != '\0') && (c != '\n'))
1148 {
1149 mac = cstring_appendChar (mac, c);
1150 }
1151
1152
1153 macrocode = tokenMacroCode (mac);
1154
1155 if (macrocode == BADTOK && !isArtificial (mac))
1156 {
885824d3 1157 context_addMacroCache (mac);
1158 }
1159 else
1160 {
1161 cstring_free (mac);
1162 }
1163
1164 if (c == '\n')
1165 {
1166 context_incLineno ();
1167 }
1168}
1169
1170static bool processMacro (void)
1171{
1172 uentry e2;
1173 ctype ct;
1174 int noparams = 0;
1175 cstring fname = cstring_undefined;
1176 bool res = TRUE;
1177 bool isspecfcn = FALSE;
1178 bool isiter = FALSE;
1179 bool skipparam = FALSE;
1180 bool isenditer = FALSE;
1181 bool unknownm = FALSE;
1182 bool hasParams = FALSE;
1183 bool emptyMacro = FALSE;
1184 char c = skip_whitespace ();
1185 fileloc loc = fileloc_noColumn (g_currentloc);
1186
1187 /* are both of these necessary? what do they mean? */
1188 uentryList specparams = uentryList_undefined;
1189 uentryList pn = uentryList_undefined;
1190
1191 context_resetMacroMissingParams ();
1192
1193 if (c == '\0' || c == '\n')
1194 {
1195 llcontbug (cstring_makeLiteral ("Bad macro"));
1196 fileloc_free (loc);
1197 return FALSE;
1198 }
1199
1200 fname = cstring_appendChar (fname, c);
1201
1202 while ((c = macro_nextChar ()) != '(' && c != '\0'
1203 && c != ' ' && c != '\t' && c != '\n')
1204 {
1205 fname = cstring_appendChar (fname, c);
1206 }
1207
1208 if (c == ' ' || c == '\t' || c == '\n')
1209 {
1210 char oldc = c;
1211
1212 if (c != '\n')
1213 {
1214 while (c == ' ' || c == '\t')
1215 {
1216 c = macro_nextChar ();
1217 }
1218 unput (c);
1219 }
1220
1221 if (c == '\n')
1222 {
1223 emptyMacro = TRUE;
1224 unput (c);
1225 }
1226
1227 c = oldc;
1228 }
1229
1230 hasParams = (c == '(');
1231
1232
1233 if (usymtab_exists (fname))
1234 {
1235 e2 = usymtab_lookupExpose (fname);
1236 ct = uentry_getType (e2);
1237
885824d3 1238 if (uentry_isCodeDefined (e2)
1239 && fileloc_isUser (uentry_whereDefined (e2)))
1240 {
1241 if (optgenerror
1242 (FLG_MACROREDEF,
1243 message ("Macro %s already defined", fname),
1244 loc))
1245 {
1246 uentry_showWhereDefined (e2);
1247 uentry_clearDefined (e2);
1248 }
1249
1250 if (uentry_isFunction (e2))
1251 {
1252 uentry_setType (e2, ctype_unknown);
1253 ct = ctype_unknown;
1254 unknownm = TRUE;
1255 context_enterUnknownMacro (e2);
1256 }
1257 else
1258 {
1259 context_enterConstantMacro (e2);
1260 }
1261 }
1262 else
1263 {
1264 if (uentry_isForward (e2) && uentry_isFunction (e2))
1265 {
1266 unknownm = TRUE;
1267
1268 voptgenerror
1269 (FLG_MACROFCNDECL,
1270 message
1271 ("Parameterized macro has no prototype or specification: %s ",
1272 fname),
1273 loc);
1274
1275 ct = ctype_unknown;
1276 uentry_setType (e2, ctype_unknown);
1277 uentry_setFunctionDefined (e2, loc);
1278 uentry_setUsed (e2, fileloc_undefined);
1279 context_enterUnknownMacro (e2);
1280 }
1281 else
1282 {
1283 if (uentry_isIter (e2))
1284 {
1285 isiter = TRUE;
1286 specparams = uentry_getParams (e2);
1287 noparams = uentryList_size (specparams);
1288 uentry_setDefined (e2, loc);
1289 context_enterIterDef (e2);
1290 }
1291 else if (uentry_isEndIter (e2))
1292 {
1293 isenditer = TRUE;
1294 uentry_setDefined (e2, loc);
1295 context_enterIterEnd (e2); /* don't care about it now */
1296 /* but should parse like an iter! */
1297 }
1298 else if (uentry_isConstant (e2))
1299 {
1300 if (hasParams)
1301 {
1302 voptgenerror
1303 (FLG_INCONDEFS,
1304 message ("Constant %s implemented as parameterized macro",
1305 fname),
1306 g_currentloc);
1307
1308 uentry_showWhereSpecified (e2);
1309 uentry_setType (e2, ctype_unknown);
b072092f 1310 uentry_makeConstantFunction (e2);
885824d3 1311 uentry_setDefined (e2, g_currentloc);
1312 uentry_setFunctionDefined (e2, g_currentloc);
1313 context_enterUnknownMacro (e2);
1314 }
1315 else
1316 {
1317 if (!uentry_isSpecified (e2))
1318 {
1319 fileloc oloc = uentry_whereDeclared (e2);
1320
1321 if (fileloc_isLib (oloc))
1322 {
1323 ;
1324 }
1325 else if (fileloc_isUndefined (oloc)
1326 || fileloc_isPreproc (oloc))
1327 {
1328 if (!emptyMacro)
1329 {
1330 voptgenerror
1331 (FLG_MACROCONSTDECL,
1332 message
1333 ("Macro constant %q not declared",
1334 uentry_getName (e2)),
1335 loc);
1336 }
1337 }
1338 else if (!fileloc_withinLines (oloc, loc, 2))
1339 { /* bogus! will give errors if there is too much whitespace */
1340 voptgenerror
1341 (FLG_SYNTAX,
1342 message
1343 ("Macro constant name %s does not match name in "
1344 "previous constant declaration. This constant "
1345 "is declared at %q", fname,
1346 fileloc_unparse (oloc)),
1347 loc);
1348 }
1349 }
1350
1351 context_enterConstantMacro (e2);
1352 cstring_free (fname);
1353 fileloc_free (loc);
1354 return res;
1355 }
1356
1357 }
1358 else if (ctype_isFunction (ct))
1359 {
1360 isspecfcn = TRUE;
1361 specparams = ctype_argsFunction (ct);
1362 noparams = uentryList_size (specparams);
1363
1364 uentry_setFunctionDefined (e2, loc);
1365 context_enterMacro (e2);
1366 }
1367 else if (uentry_isVar (e2))
1368 {
1369 if (hasParams)
1370 {
1371 voptgenerror
1372 (FLG_INCONDEFS,
1373 message ("Variable %s implemented as parameterized macro",
1374 fname),
1375 loc);
1376
1377 uentry_showWhereSpecified (e2);
1378 uentry_setType (e2, ctype_unknown);
1379 uentry_makeVarFunction (e2);
1380 uentry_setDefined (e2, g_currentloc);
1381 uentry_setFunctionDefined (e2, g_currentloc);
1382 context_enterUnknownMacro (e2);
1383 }
1384 else
1385 {
1386 uentry ucons = uentry_makeConstant (fname,
1387 ctype_unknown,
1388 loc);
1389 if (uentry_isExpandedMacro (e2))
1390 {
1391 ; /* okay */
1392 }
1393 else
1394 {
1395 if (optgenerror
1396 (FLG_INCONDEFS,
1397 message ("Variable %s implemented by a macro",
1398 fname),
1399 loc))
1400 {
1401 uentry_showWhereSpecified (e2);
1402 }
1403 }
1404
1405 uentry_setDefined (e2, loc);
1406 uentry_setUsed (ucons, loc);
1407
1408 context_enterConstantMacro (ucons);
1409 uentry_markOwned (ucons);
1410 cstring_free (fname);
1411 return res;
1412 }
1413 }
1414 else
1415 {
1416 if (uentry_isDatatype (e2))
1417 {
1418 vgenhinterror
1419 (FLG_SYNTAX,
1420 message ("Type implemented as macro: %x",
1421 uentry_getName (e2)),
1422 message ("A type is implemented using a macro definition. A "
1423 "typedef should be used instead."),
1424 g_currentloc);
1425
1426 swallowMacro ();
1427 /* Must exit scope (not sure why a new scope was entered?) */
1428 usymtab_quietExitScope (g_currentloc);
1429 uentry_setDefined (e2, g_currentloc);
1430 res = FALSE;
1431 }
1432 else
1433 {
1434 llcontbug
1435 (message ("Unexpanded macro not function or constant: %q",
1436 uentry_unparse (e2)));
1437 uentry_setType (e2, ctype_unknown);
1438
1439 if (hasParams)
1440 {
1441 uentry_makeVarFunction (e2);
1442 uentry_setDefined (e2, g_currentloc);
1443 uentry_setFunctionDefined (e2, g_currentloc);
1444 context_enterUnknownMacro (e2);
1445 }
1446 }
1447 }
1448 }
1449 }
1450 }
1451 else
1452 {
1453 uentry ce;
1454
1455 voptgenerror
1456 (FLG_MACROMATCHNAME,
1457 message ("Unexpanded macro %s does not match name of a constant "
1458 "or iter declaration. The name used in the control "
1459 "comment on the previous line should match. "
1460 "(Assuming macro defines a constant.)",
1461 fname),
1462 loc);
1463
1464
1465 ce = uentry_makeConstant (fname, ctype_unknown, fileloc_undefined);
1466 uentry_setUsed (ce, loc); /* perhaps bogus? */
1467 e2 = usymtab_supEntryReturn (ce);
1468
1469 context_enterConstantMacro (e2);
1470 cstring_free (fname);
1471 fileloc_free (loc);
1472 return res;
1473 }
1474
1475 /* in macros, ( must follow immediatetly after name */
1476
1477 if (hasParams)
1478 {
1479 int paramno = 0;
1480
1481 c = skip_whitespace ();
1482
1483 while (c != ')' && c != '\0')
1484 {
1485 uentry param;
1486 bool suppress = context_inSuppressRegion ();
1487 cstring paramname = cstring_undefined;
1488
1489 /*
1490 ** save the parameter location
1491 */
1492
1493 decColumn ();
1494 context_saveLocation ();
1495 incColumn ();
1496
1497 while (c != ' ' && c != '\t' && c != ',' && c != '\0' && c != ')')
1498 {
1499 paramname = cstring_appendChar (paramname, c);
1500 c = macro_nextChar ();
1501 }
1502
1503 if (c == ' ' || c == '\t') c = skip_whitespace ();
1504
1505 if (c == ',')
1506 {
1507 c = macro_nextChar ();
1508 if (c == ' ' || c == '\t') c = skip_whitespace ();
1509 }
1510
1511 if (c == '\0')
1512 {
1513 llfatalerror (cstring_makeLiteral
1514 ("Bad macro syntax: uentryList"));
1515 }
1516
1517 if ((isspecfcn || isiter) && (paramno < noparams)
1518 && !uentry_isElipsisMarker (uentryList_getN
1519 (specparams, paramno)))
1520 {
6970c11b 1521 fileloc sloc = context_getSaveLocation ();
885824d3 1522 uentry decl = uentryList_getN (specparams, paramno);
1523 sRef sr;
1524
1525 param = uentry_nameCopy (paramname, decl);
1526
1527
1528 uentry_setParam (param);
6970c11b 1529 sr = sRef_makeParam (paramno, uentry_getType (param), stateInfo_makeLoc (sloc));
885824d3 1530
1531 if (sRef_getNullState (sr) == NS_ABSNULL)
1532 {
1533 ctype pt = ctype_realType (uentry_getType (param));
1534
1535 if (ctype_isUser (pt))
1536 {
1537 uentry te = usymtab_getTypeEntrySafe (ctype_typeId (pt));
1538
1539 if (uentry_isValid (te))
1540 {
1541 sRef_setStateFromUentry (sr, te);
1542 }
1543 }
1544 else
1545 {
6970c11b 1546 sRef_setNullState (sr, NS_UNKNOWN, sloc);
885824d3 1547 }
1548 }
1549
1550 uentry_setSref (param, sr);
6970c11b 1551 uentry_setDeclaredForceOnly (param, sloc);
885824d3 1552
1553 skipparam = isiter && uentry_isOut (uentryList_getN (specparams, paramno));
1554 }
1555 else
1556 {
1557 fileloc sloc = context_getSaveLocation ();
1558
1559 param = uentry_makeVariableSrefParam
6970c11b 1560 (paramname, ctype_unknown, fileloc_copy (sloc),
1561 sRef_makeParam (paramno, ctype_unknown, stateInfo_makeLoc (sloc)));
885824d3 1562 cstring_free (paramname);
1563
1564 sRef_setPosNull (uentry_getSref (param), sloc);
885824d3 1565 uentry_setDeclaredForce (param, sloc);
1566
1567 skipparam = FALSE;
1568 fileloc_free (sloc);
1569 }
1570
1571 if (!skipparam)
1572 {
1573 llassert (!uentry_isElipsisMarker (param));
1574
1575 if (!suppress)
1576 {
1577 sRef_makeUnsafe (uentry_getSref (param));
1578 }
1579
1580 pn = uentryList_add (pn, uentry_copy (param));
1581 usymtab_supEntry (param);
1582 }
1583 else
1584 {
1585 /* don't add param */
1586 uentry_free (param);
1587 }
1588
1589 if (c == ',')
1590 {
1591 (void) macro_nextChar ();
1592 c = skip_whitespace ();
1593 }
1594
1595 paramno++;
1596 }
1597
1598 if (c == ')')
1599 {
1600 if (isspecfcn || isiter)
1601 {
1602 if (paramno != noparams && noparams >= 0)
1603 {
1604 advanceLine ();
1605
1606 voptgenerror
1607 (FLG_INCONDEFS,
1608 message ("Macro %s specified with %d args, defined with %d",
1609 fname, noparams, paramno),
1610 g_currentloc);
1611
1612 uentry_showWhereSpecified (e2);
1613 uentry_resetParams (e2, pn);
1614 }
1615 }
1616 else
1617 {
1618 uentry_resetParams (e2, pn);
1619 }
1620 }
1621 }
1622 else
1623 {
1624 /*
1625 ** the form should be:
1626 **
1627 ** # define newname oldname
1628 ** where oldname refers to a function matching the specification
1629 ** of newname.
1630 */
1631
1632 if (unknownm)
1633 {
1634 sRef_setGlobalScope ();
1635 usymtab_supGlobalEntry (uentry_makeVariableLoc (fname, ctype_unknown));
1636 sRef_clearGlobalScope ();
1637 }
1638 else
1639 {
1640 context_setMacroMissingParams ();
1641 }
1642 }
1643
1644
1645 /* context_setuentryList (pn); */
1646 usymtab_enterScope ();
1647
1648 fileloc_free (loc);
1649 cstring_free (fname);
1650
1651 return res;
1652}
1653
1654static bool handleSpecial (char *yyt)
1655{
1656 char *l = mstring_create (MAX_NAME_LENGTH);
1657 static bool reportcpp = FALSE;
1658 int lineno = 0;
1659 char c;
1660 char *ol;
1661 cstring olc;
1662
1663 strcpy (l, yyt + 1);
1664
1665 /* Need to safe original l for deallocating. */
1666 ol = l;
1667
1668 l += strlen (yyt) - 1;
1669
1670 while ((c = char_fromInt (lminput ())) != '\n' && c != '\0')
1671 {
1672 *l++ = c;
1673 }
1674
1675 *l = '\0';
1676 olc = cstring_fromChars (ol);
1677
1678 if (cstring_equalPrefix (olc, "pragma"))
1679 {
1680 char *pname = mstring_create (longUnsigned_fromInt (MAX_PRAGMA_LEN));
1681 char *opname = pname;
1682 char *ptr = ol + 6; /* pragma is six characters, plus space */
1683 int len = 0;
1684
1685
1686 /* skip whitespace */
1687 while (((c = *ptr) != '\0') && isspace (c))
1688 {
1689 ptr++;
1690 }
1691
1692
1693 while (((c = *ptr) != '\0') && !isspace (c))
1694 {
1695 len++;
1696
1697 if (len > MAX_PRAGMA_LEN)
1698 {
1699 break;
1700 }
1701
1702 ptr++;
1703 *pname++ = c;
1704 }
1705
1706 *pname = '\0';
1707
1708 if (len == PRAGMA_LEN_EXPAND
1709 && mstring_equal (opname, PRAGMA_EXPAND))
1710 {
1711 cstring exname = cstring_undefined;
1712 uentry ue;
1713
1714 ptr++;
1715 while (((c = *ptr) != '\0') && !isspace (c))
1716 {
1717 exname = cstring_appendChar (exname, c);
1718 ptr++;
1719 }
1720
1721
1722 ue = usymtab_lookupExposeGlob (exname);
1723
1724 if (uentry_isExpandedMacro (ue))
1725 {
1726 if (fileloc_isPreproc (uentry_whereDefined (ue)))
1727 {
1728 fileloc_setColumn (g_currentloc, 1);
1729 uentry_setDefined (ue, g_currentloc);
1730 }
1731 }
1732
1733 cstring_free (exname);
1734 }
1735 }
1736 else if (cstring_equalPrefix (olc, "ident"))
1737 {
1738 /* Some pre-processors will leave these in the code. Ignore rest of line */
1739 }
1740 /*
1741 ** Yuk...Win32 filenames can have spaces in them...we need to read
1742 ** to the matching end quote.
1743 */
1744 else if ((sscanf (ol, "line %d \"", &lineno) == 1)
1745 || (sscanf (ol, " %d \"", &lineno) == 1))
1746 {
1747 char *tmp = ol;
28bf4b0b 1748 cstring fname;
885824d3 1749 fileId fid;
1750
28bf4b0b 1751 /*@access cstring@*/
885824d3 1752 while (*tmp != '\"' && *tmp != '\0')
1753 {
1754 tmp++;
1755 }
1756
1757 llassert (*tmp == '\"');
1758
1759 tmp++;
28bf4b0b 1760
885824d3 1761 fname = tmp;
1762
1763 while (*tmp != '\"' && *tmp != '\0')
1764 {
1765 tmp++;
1766 }
1767
1768 llassert (*tmp == '\"');
1769
1770 *tmp = '\0';
1771
885824d3 1772# if defined(OS2) || defined(MSDOS) || defined(WIN32)
1773
1774 /*
1775 ** DOS-like path delimiters get delivered in pairs, something like
1776 ** \"..\\\\file.h\", so we have to make it normal again. We do NOT
1777 ** remove the pre dirs yet as we usually specify tmp paths relative
1778 ** to the current directory, so tmp files would not get found in
1779 ** the hash table. If this method fails we try it again later.
1780 */
1781
1782 {
1783 char *stmp = fname;
1784
1785 /*
1786 ** Skip past the drive marker.
1787 */
1788
885824d3 1789 if (strchr (stmp, ':') != NULL)
1790 {
1791 stmp = strchr (stmp, ':') + 1;
1792 }
1793
885824d3 1794 while ((stmp = strchr (stmp, CONNECTCHAR)) != NULL )
1795 {
1796 if (*(stmp+1) == CONNECTCHAR)
1797 {
1798 memmove (stmp, stmp+1, strlen (stmp));
1799 }
1800
1801 stmp++;
885824d3 1802 }
1803
28bf4b0b 1804 fid = fileTable_lookupBase (context_fileTable (), fname);
885824d3 1805 if (!(fileId_isValid (fid)))
1806 {
1807 fname = removePreDirs (fname);
28bf4b0b 1808 fid = fileTable_lookupBase (context_fileTable (), fname);
885824d3 1809 }
1810 }
1811# else /* !defined(OS2) && !defined(MSDOS) */
1812 fname = removePreDirs (fname);
28bf4b0b 1813 fid = fileTable_lookupBase (context_fileTable (), fname);
885824d3 1814# endif /* !defined(OS2) && !defined(MSDOS) */
1815
1816 if (!(fileId_isValid (fid)))
1817 {
12f2ffe9 1818 if (context_inXHFile ())
1819 {
1820 fid = fileTable_addXHFile (context_fileTable (), fname);
1821 }
1822 else if (isHeaderFile (fname))
885824d3 1823 {
28bf4b0b 1824 fid = fileTable_addHeaderFile (context_fileTable (), fname);
885824d3 1825 }
1826 else
1827 {
28bf4b0b 1828 fid = fileTable_addFile (context_fileTable (), fname);
885824d3 1829 }
1830 }
1831
1832 setFileLine (fid, lineno);
28bf4b0b 1833 /*@noaccess cstring@*/
885824d3 1834 }
1835 else if ((sscanf (ol, "line %d", &lineno) == 1)
1836 || (sscanf (ol, " %d", &lineno) == 1))
1837 {
1838 setLine (lineno); /* next line is <cr> */
1839 }
1840 else
1841 {
1842 if (mstring_equal (ol, "")) {
1843 DPRINTF (("Empty pp command!"));
1844 /*
1845 ** evs 2000-05-16: This is a horrible kludge, to get around a bug (well, difficulty) in the pre-processor.
1846 ** We handle a plain # in the input file, by echoing it, and ignoring it in the post-pp-file.
1847 */
1848 mstring_free (ol);
1849 return FALSE;
1850 } else {
1851 if (!reportcpp)
1852 {
1853
1854 } else {
1855 llbug (message ("File contains preprocessor command: #%s",
1856 cstring_fromChars (ol)));
1857 reportcpp = TRUE;
1858 }
1859 }
1860
1861 sfree (ol);
1862 return TRUE;
1863 }
1864
1865 sfree (ol);
1866 return FALSE;
1867}
1868
1869static int handleLlSpecial ()
1870{
1871 int ic;
1872 char c;
1873 char *s = mstring_createEmpty ();
1874 char *os;
1875 int tok;
1876 int charsread = 0;
28bf4b0b 1877 fileloc loc;
1878
1879 loc = fileloc_copy (g_currentloc);
1880 DPRINTF (("Handle special: %s", fileloc_unparse (loc)));
885824d3 1881
1882 while (((ic = ninput ()) != 0) && isalpha (ic))
1883 {
1884 c = (char) ic;
1885 s = mstring_append (s, c);
1886 charsread++;
1887 }
1888
28bf4b0b 1889 DPRINTF (("Read: %s / %s", s, fileloc_unparse (g_currentloc)));
885824d3 1890 os = s;
1891
1892 if (charsread == 0 && ic == (int) AFTER_COMMENT_MARKER[0])
1893 {
1894 ic = ninput ();
1895
1896 llassert (ic == AFTER_COMMENT_MARKER[1]);
885824d3 1897
28bf4b0b 1898 if (*s == '\0')
885824d3 1899 {
1900 sfree (os);
28bf4b0b 1901 fileloc_free (loc);
885824d3 1902 return QNOMODS; /* special token no modifications token */
1903 }
885824d3 1904 }
1905
28bf4b0b 1906 DPRINTF (("Coment marker: %s", os));
885824d3 1907 tok = commentMarkerToken (cstring_fromChars (os));
1908
1909 if (tok != BADTOK)
1910 {
1911 tokLength = charsread;
1912 sfree (os);
1913 inSpecPart = TRUE;
28bf4b0b 1914 fileloc_free (loc);
885824d3 1915 return tok;
1916 }
28bf4b0b 1917
1918 DPRINTF (("Not a comment marker..."));
885824d3 1919 /* Add rest of the comment */
1920
1921 if (ic != 0 && ic != EOF)
1922 {
1923 c = (char) ic;
885824d3 1924
1925 s = mstring_append (s, c);
1926 charsread++;
1927
1928 while (((ic = ninput ()) != 0) && (ic != EOF)
1929 && (ic != AFTER_COMMENT_MARKER[0]))
1930 {
1931 c = (char) ic;
1932 s = mstring_append (s, c);
1933 charsread++;
1934 }
1935 }
1936
28bf4b0b 1937 DPRINTF (("Read: %s / %s", s, fileloc_unparse (g_currentloc)));
1938
885824d3 1939 if (ic == AFTER_COMMENT_MARKER[0])
1940 {
1941 int nc = ninput ();
1942 llassert ((char) nc == AFTER_COMMENT_MARKER[1]);
1943 charsread++;
1944 }
1945
885824d3 1946 os = s;
1947
1948 while (*s == ' ' || *s == '\t' || *s == '\n')
1949 {
1950 s++;
1951 }
1952
1953 if (*s == '-' || *s == '+' || *s == '=') /* setting flags */
1954 {
1955 c = *s;
1956
1957 while (c == '-' || c == '+' || c == '=')
1958 {
1959 ynm set = ynm_fromCodeChar (c);
1960 cstring thisflag;
1961
1962 s++;
1963
1964 thisflag = cstring_fromChars (s);
1965
1966 while ((c = *s) != '\0' && (c != '-') && (c != '=')
1967 && (c != '+') && (c != ' ') && (c != '\t') && (c != '\n'))
1968 {
1969 s++;
1970 }
1971
1972 *s = '\0';
1973
1974 if (!context_getFlag (FLG_NOCOMMENTS))
1975 {
1976 cstring flagname = thisflag;
1977 flagcode fflag = identifyFlag (flagname);
a0a162cd 1978
885824d3 1979 if (flagcode_isSkip (fflag))
1980 {
1981 ;
1982 }
1983 else if (flagcode_isInvalid (fflag))
1984 {
1985 if (isMode (flagname))
1986 {
1987 if (ynm_isMaybe (set))
1988 {
1989 llerror
1990 (FLG_BADFLAG,
1991 message
28bf4b0b 1992 ("Semantic comment attempts to restore flag %s. "
885824d3 1993 "A mode flag cannot be restored.",
1994 flagname));
1995 }
1996 else
1997 {
1998 context_setMode (flagname);
1999 }
2000 }
2001 else
2002 {
990ec868 2003 voptgenerror
2004 (FLG_UNRECOGFLAGCOMMENTS,
28bf4b0b 2005 message ("Unrecognized option in semantic comment: %s",
990ec868 2006 flagname),
2007 g_currentloc);
885824d3 2008 }
2009 }
2010 else if (flagcode_isGlobalFlag (fflag))
2011 {
990ec868 2012 voptgenerror
885824d3 2013 (FLG_BADFLAG,
2014 message
28bf4b0b 2015 ("Semantic comment attempts to set global flag %s. "
885824d3 2016 "A global flag cannot be set locally.",
990ec868 2017 flagname),
2018 g_currentloc);
885824d3 2019 }
2020 else
2021 {
2022 context_fileSetFlag (fflag, set);
a0a162cd 2023
885824d3 2024 if (flagcode_hasArgument (fflag))
2025 {
2026 if (ynm_isMaybe (set))
2027 {
990ec868 2028 voptgenerror
885824d3 2029 (FLG_BADFLAG,
2030 message
28bf4b0b 2031 ("Semantic comment attempts to restore flag %s. "
885824d3 2032 "A flag for setting a value cannot be restored.",
990ec868 2033 flagname),
2034 g_currentloc);
885824d3 2035 }
2036 else
2037 { /* cut-and-pastied from llmain...blecch */
2038 cstring extra = cstring_undefined;
2039 char *rest;
2040 char *orest;
2041 char rchar;
2042
2043 *s = c;
2044 rest = mstring_copy (s);
2045 orest = rest;
2046 *s = '\0';
2047
2048 while ((rchar = *rest) != '\0'
2049 && (isspace (rchar)))
2050 {
2051 rest++;
2052 s++;
2053 }
2054
2055 while ((rchar = *rest) != '\0'
2056 && !isspace (rchar))
2057 {
2058 extra = cstring_appendChar (extra, rchar);
2059 rest++;
2060 s++;
2061 }
2062
2063 sfree (orest);
a0a162cd 2064
885824d3 2065 if (cstring_isUndefined (extra))
2066 {
2067 llerror
2068 (FLG_BADFLAG,
2069 message
28bf4b0b 2070 ("Flag %s (in semantic comment) must be followed by an argument",
885824d3 2071 flagcode_unparse (fflag)));
2072 }
2073 else
2074 {
2075 s--;
2076
2077 if (flagcode_hasValue (fflag))
2078 {
2079 setValueFlag (fflag, extra);
2080 }
2081 else if (flagcode_hasString (fflag))
2082 {
2083 setStringFlag (fflag, extra);
2084 }
2085 else
2086 {
2087 BADEXIT;
2088 }
2089 }
2090 }
2091 }
2092 }
2093 }
2094 else
2095 {
a0a162cd 2096 ;
2097 }
885824d3 2098
2099 *s = c;
2100 while ((c == ' ') || (c == '\t') || (c == '\n'))
2101 {
2102 c = *(++s);
2103 }
2104 }
2105
2106 if (context_inHeader () && !isArtificial (cstring_fromChars (os)))
2107 {
28bf4b0b 2108 DPRINTF (("Here adding comment: %s", os));
2109 context_addComment (cstring_fromCharsNew (os));
885824d3 2110 }
2111 else
2112 {
2113 ;
2114 }
2115 }
2116 else
2117 {
2118 char *t = s;
2119 int macrocode;
2120 char tchar = '\0';
28bf4b0b 2121 annotationInfo ainfo;
885824d3 2122
2123 while (*s != '\0' && *s != ' ' && *s != '\t' && *s != '\n')
2124 {
2125 s++;
2126 }
2127
2128 if (*s != '\0')
2129 {
2130 tchar = *s;
2131 *s = '\0';
2132 s++;
2133 }
2134
2135 t = cstring_toCharsSafe (cstring_downcase (cstring_fromChars (t)));
2136 macrocode = tokenMacroCode (cstring_fromChars (t));
2137
2138 if (macrocode != BADTOK)
2139 {
2140 tokLength = mstring_length (t);
885824d3 2141
2142 sfree (t);
2143 sfree (os);
28bf4b0b 2144 fileloc_free (loc);
885824d3 2145
2146 if (macrocode == SKIPTOK)
2147 {
2148 return BADTOK;
2149 }
2150
2151 return macrocode;
2152 }
2153
28bf4b0b 2154 ainfo = context_lookupAnnotation (cstring_fromChars (os));
2155
2156 if (annotationInfo_isDefined (ainfo)) {
2157 DPRINTF (("Found annotation: %s", annotationInfo_unparse (ainfo)));
2158 /*@i324@*/ yylval.annotation = ainfo;
2159 tokLength = 0;
2160 sfree (os);
2161 sfree (t);
2162 fileloc_free (loc);
2163 return CANNOTATION;
2164 }
2165
885824d3 2166 if (context_inHeader ())
2167 {
2168 if (tchar != '\0')
2169 {
2170 *(s-1) = tchar;
2171 }
2172
2173 if ((context_inMacro () || context_inGlobalContext ())
2174 && macrocode != SKIPTOK
2175 && !isArtificial (cstring_fromChars (os)))
2176 {
28bf4b0b 2177 DPRINTF (("Add comment: %s", os));
885824d3 2178 context_addComment (cstring_fromCharsNew (os));
2179 }
2180 else
2181 {
2182 ;
2183 }
2184
2185 if (tchar != '\0')
2186 {
2187 *(s-1) = '\0';
2188 }
2189 }
2190
2191 if (mstring_equal (t, "ignore"))
2192 {
2193 if (!context_getFlag (FLG_NOCOMMENTS))
2194 {
2195 context_enterSuppressRegion ();
2196 }
2197 }
2198 else if ((*t == 'i' || *t == 't')
2199 && (*(t + 1) == '\0'))
2200 {
2201 if (!context_getFlag (FLG_NOCOMMENTS)
2202 && (*t == 'i' || context_getFlag (FLG_TMPCOMMENTS)))
2203 {
2204 context_enterSuppressLine (-1); /* infinite suppression */
2205 }
2206 }
2207 else if (((*t == 'i') || (*t == 't'))
2208 && ((*(t + 1) >= '0' && *(t + 1) <= '9')))
2209 {
2210 bool tmpcomment = (*t == 't');
2211 int val = -1;
2212 char *tt = t; /* don't mangle t, since it is free'd */
2213 char lc = *(++tt);
2214
2215 if (lc >= '0' && lc <= '9')
2216 {
2217 val = (int)(lc - '0');
2218
2219 lc = *(++tt);
2220 while (lc >= '0' && lc <= '9')
2221 {
2222 val *= 10;
2223 val += lc - '0';
2224 lc = *(++tt);
2225 }
2226 }
2227
2228
2229 if (!context_getFlag (FLG_NOCOMMENTS)
2230 && (!tmpcomment || context_getFlag (FLG_TMPCOMMENTS)))
2231 {
2232 context_enterSuppressLine (val);
2233 }
2234 }
2235 else if (mstring_equal (t, "end"))
2236 {
2237 if (!context_getFlag (FLG_NOCOMMENTS))
2238 {
2239 context_exitSuppressRegion ();
2240 }
2241 }
2242 else if (mstring_equal (t, "notfunction"))
2243 {
2244 ; /* handled by pcpp */
2245 }
2246 else if (mstring_equal (t, "access"))
2247 {
2248 cstring tname;
2249
2250 while (TRUE)
2251 {
2252 while ((c = *s) && (c == ' ' || c == '\t' || c == '\n'))
2253 {
2254 s++;
2255 }
2256
2257 if (c == '\0')
2258 {
2259 break;
2260 }
2261
2262 tname = cstring_fromChars (s);
2263
2264 while ((c = *s) != '\0' && c != ' '
2265 && c != '\t' && c != '\n' && c != ',')
2266 {
2267 s++;
2268 }
2269
2270 *s = '\0';
2271
28bf4b0b 2272 DPRINTF (("Access %s", tname));
2273
885824d3 2274 if (!context_getFlag (FLG_NOCOMMENTS)
2275 && !context_getFlag (FLG_NOACCESS))
2276 {
2277 if (usymtab_existsType (tname))
2278 {
28bf4b0b 2279 typeId uid = usymtab_getTypeId (tname);
2280 uentry ue = usymtab_getTypeEntry (uid);
2281
2282 if (uentry_isAbstractDatatype (ue))
2283 {
2284 context_addFileAccessType (uid);
2285 DPRINTF (("Adding access to: %s / %d", tname, uid));
2286 }
2287 else
2288 {
2289 voptgenerror
2290 (FLG_COMMENTERROR,
2291 message
2292 ("Non-abstract type %s used in access comment",
2293 tname),
2294 g_currentloc);
2295 }
885824d3 2296 }
2297 else
2298 {
2299 if (!(context_inSuppressRegion ()
2300 || context_inSuppressZone (g_currentloc)))
2301 {
28bf4b0b 2302 voptgenerror
2303 (FLG_COMMENTERROR,
2304 message
2305 ("Unrecognized type %s used in access comment",
2306 tname),
2307 g_currentloc);
885824d3 2308 }
2309 }
2310 }
2311
2312 if (c != '\0')
2313 {
2314 s++;
2315 }
2316
2317 if (c != ',' && c != ' ')
2318 {
2319 break;
2320 }
2321 }
2322 }
2323 else if (mstring_equal (t, "noaccess"))
2324 {
2325 cstring tname;
2326 char lc;
2327
2328 while (TRUE)
2329 {
2330 while ((lc = *s) && (lc == ' ' || lc == '\t' || lc == '\n'))
2331 {
2332 s++;
2333 }
2334
2335 if (lc == '\0')
2336 {
2337 break;
2338 }
2339
2340 tname = cstring_fromChars (s);
2341
2342 while ((lc = *s) != '\0' && lc != ' ' && lc != '\t'
2343 && lc != '\n' && lc != ',')
2344 {
2345 s++;
2346 }
2347
2348 *s = '\0';
2349
2350 if (!context_getFlag (FLG_NOCOMMENTS)
2351 && !context_getFlag (FLG_NOACCESS))
2352 {
2353 if (usymtab_existsType (tname))
2354 {
2355 typeId tuid = usymtab_getTypeId (tname);
2356
2357 if (context_couldHaveAccess (tuid))
2358 {
28bf4b0b 2359 DPRINTF (("Removing access: %s", tname));
885824d3 2360 context_removeFileAccessType (tuid);
2361 }
2362 else
2363 {
2364 if (!(context_inSuppressRegion ()
2365 || context_inSuppressZone (g_currentloc)))
2366 {
2367 uentry ue = usymtab_getTypeEntry (tuid);
2368
2369 if (uentry_isAbstractDatatype (ue))
2370 {
28bf4b0b 2371 voptgenerror
2372 (FLG_COMMENTERROR,
2373 message
2374 ("Non-accessible abstract type %s used in noaccess comment",
2375 tname),
2376 g_currentloc);
885824d3 2377 }
2378 else
2379 {
28bf4b0b 2380 voptgenerror
2381 (FLG_COMMENTERROR,
2382 message
2383 ("Non-abstract type %s used in noaccess comment",
2384 tname),
2385 g_currentloc);
885824d3 2386 }
2387 }
2388 }
2389 }
2390 else
2391 {
2392 if (!(context_inSuppressRegion ()
2393 || context_inSuppressZone (g_currentloc)))
2394 {
28bf4b0b 2395 voptgenerror
2396 (FLG_COMMENTERROR,
2397 message
2398 ("Unrecognized type %s used in noaccess comment",
2399 tname),
2400 g_currentloc);
885824d3 2401 }
2402 }
2403 }
2404
2405 if (lc != '\0')
2406 {
2407 s++;
2408 }
2409
2410 if (lc != ',' && lc != ' ')
2411 {
2412 break;
2413 }
2414 }
2415 }
2416 else
2417 {
885824d3 2418 voptgenerror (FLG_UNRECOGCOMMENTS,
28bf4b0b 2419 message ("Semantic comment unrecognized: %s",
2420 cstring_fromChars (os)), loc);
885824d3 2421 }
2422
2423 sfree (t);
2424 }
2425
28bf4b0b 2426 sfree (os);
2427 fileloc_free (loc);
885824d3 2428 return BADTOK;
2429}
2430
2431static /*@only@*/ cstring makeIdentifier (char *s)
2432{
2433 char *c = mstring_create (size_toInt (strlen (s)) + 1);
2434 cstring id = cstring_fromChars (c);
2435
2436 while (isalnum (*s) || (*s == '_') || (*s == '$'))
2437 {
2438 *c++ = *s++;
2439 }
2440
2441 *c = '\0';
2442 return (id);
2443}
2444
2445/*@observer@*/ /*@dependent@*/ uentry coerceId (cstring cn)
2446{
2447 if (!(usymtab_exists (cn)))
2448 {
2449 fileloc loc = fileloc_createExternal ();
2450
2451 /*
2452 ** We need to put this in a global scope, otherwise the sRef will be deallocated.
2453 */
2454
2455 uentry ce = uentry_makeUnrecognized (cn, loc);
2456
2457 if (!context_inIterEnd ())
2458 {
2459 voptgenerror
2460 (FLG_SYSTEMUNRECOG,
2461 message ("Unrecognized (possibly system) identifier: %q",
2462 uentry_getName (ce)),
2463 g_currentloc);
2464 }
2465
2466 return ce;
2467 }
2468
2469 return (usymtab_lookup (cn));
2470}
2471
2472/*
2473** like, coerceId, but doesn't supercede for iters
2474*/
2475
2476/*@observer@*/ uentry coerceIterId (cstring cn)
2477{
2478 if (!(usymtab_exists (cn)))
2479 {
2480 return uentry_undefined;
2481 }
2482
2483 return (usymtab_lookup (cn));
2484}
2485
2486/*@observer@*/ cstring LastIdentifier ()
2487{
2488 return (lastidprocessed);
2489}
2490
2491static int processIdentifier (cstring id)
2492{
2493 uentry le;
2494
ccf0a4a8 2495 if (context_getFlag (FLG_GRAMMAR))
2496 {
2497 lldiagmsg (message ("Process identifier: %s", id));
2498 }
885824d3 2499
2500 context_clearJustPopped ();
2501 lastidprocessed = id;
2502
28bf4b0b 2503 if (context_inFunctionHeader ())
885824d3 2504 {
2505 int tok = commentMarkerToken (id);
28bf4b0b 2506 DPRINTF (("in function decl..."));
885824d3 2507
2508 if (tok != BADTOK)
2509 {
2510 return tok;
2511 }
2512 else
2513 {
2514 tok = tokenMacroCode (id);
2515
2516 if (tok != BADTOK)
2517 {
2518 return tok;
2519 }
28bf4b0b 2520 else
2521 {
08eb3d0e 2522 annotationInfo ainfo;
2523
2524 if (expectingMetaStateName)
2525 {
2526 metaStateInfo msinfo = context_lookupMetaStateInfo (id);
2527
2528 if (metaStateInfo_isDefined (msinfo))
2529 {
2530 yylval.msinfo = msinfo;
2531 return METASTATE_NAME;
2532 }
2533 else
2534 {
ba45e1e4 2535 DPRINTF (("Not meta state name: %s", cstring_toCharsSafe (id)));
08eb3d0e 2536 }
2537 }
2538
2539 ainfo = context_lookupAnnotation (id);
28bf4b0b 2540
2541 if (annotationInfo_isDefined (ainfo))
2542 {
2543 DPRINTF (("Found annotation: %s", annotationInfo_unparse (ainfo)));
2544 /*@i324@*/ yylval.annotation = ainfo;
2545 return CANNOTATION;
2546 }
2547 else
2548 {
2549 DPRINTF (("Not annotation: %s", id));
2550 }
2551 }
885824d3 2552 }
2553 }
2554
2555 /* Consider handling: Defined by C99 as static const char __func__[] */
2556
2557 if (context_getFlag (FLG_GNUEXTENSIONS))
2558 {
2559 int tok = BADTOK;
2560
2561 if (cstring_equalLit (id, "__stdcall")
2562 || cstring_equalLit (id, "__cdecl")
2563 || cstring_equalLit (id, "__extension__"))
2564 {
2565 return BADTOK;
2566 }
2567 else if (cstring_equalLit (id, "__volatile__"))
2568 {
2569 tok = QVOLATILE;
2570 }
2571 else if (cstring_equalLit (id, "__signed"))
2572 {
2573 tok = QSIGNED;
2574 }
2575 else if (cstring_equalLit (id, "__unsigned"))
2576 {
2577 tok = QUNSIGNED;
2578 }
2579 else if (cstring_equalLit (id, "__const__"))
2580 {
2581 tok = QCONST;
2582 }
2583 else if (cstring_equalLit (id, "__alignof__"))
2584 {
2585 tok = CALIGNOF; /* alignof is parsed like sizeof */
2586 }
2587 else if (cstring_equalLit (id, "__FUNCTION__")
2588 || cstring_equalLit (id, "__PRETTY_FUNCTION__"))
2589 {
2590 /* These tokens hold the name of the current function as strings */
2591 yylval.expr = exprNode_stringLiteral (id, fileloc_copy (g_currentloc));
2592 tokLength = 0;
2593 lastWasString = TRUE;
2594 tok = CCONSTANT;
2595 return tok;
2596 }
2597 else if (cstring_equalLit (id, "__attribute__")
2598 || cstring_equalLit (id, "__asm__")
2599 || cstring_equalLit (id, "_asm")
2600 || cstring_equalLit (id, "__asm")
2601 || cstring_equalLit (id, "__declspec"))
2602 {
2603 int depth = 0;
2604 bool useparens = FALSE;
2605 bool usebraces = FALSE;
2606 bool inquote = FALSE;
2607 bool inescape = FALSE;
2608 int ic;
2609
2610 while ((ic = input ()) != EOF)
2611 {
2612
2613 if (inescape)
2614 {
2615 inescape = FALSE;
2616 }
2617 else if (ic == '\\')
2618 {
2619 inescape = TRUE;
2620 }
2621 else if (ic == '\"')
2622 {
2623 inquote = !inquote;
2624 }
2625 else if (!inquote)
2626 {
2627 if (ic == '(')
2628 {
2629 if (!useparens)
2630 {
2631 if (!usebraces)
2632 {
2633 useparens = TRUE;
2634 }
2635 }
2636
2637 if (useparens)
2638 {
2639 depth++;
2640 }
2641 }
2642 else if (ic == '{')
2643 {
2644 if (!usebraces)
2645 {
2646 if (!useparens)
2647 {
2648 usebraces = TRUE;
2649 }
2650 }
2651
2652 if (usebraces)
2653 {
2654 depth++;
2655 }
2656 }
2657 else if (ic == ')' && useparens)
2658 {
2659 depth--;
2660 if (depth == 0) break;
2661 }
2662 else if (ic == '}' && usebraces)
2663 {
2664 depth--;
2665 if (depth == 0) break;
2666 }
2667 else if (ic == '}'
2668 && !usebraces && !useparens
2669 && cstring_equalLit (id, "__asm"))
2670 {
2671 /*
2672 ** We need this because some MS VC++ include files
2673 ** have __asm mov ... }
2674 ** Its a kludge, but otherwise would need to parse
2675 ** the asm code!
2676 */
2677 return TRBRACE;
2678 }
2679 }
2680
2681 if (ic == '\n')
2682 {
2683 context_incLineno ();
2684
2685 if (cstring_equalLit (id, "__asm")
2686 && !useparens && !usebraces)
2687 {
2688 break;
2689 }
2690 }
2691 }
2692
2693 llassert ((useparens && ic == ')')
2694 || (usebraces && ic == '}')
2695 || (!useparens && !usebraces));
2696
2697 return BADTOK;
2698 }
2699 else if (cstring_equalLit (id, "inline")
2700 || cstring_equalLit (id, "__inline")
2701 || cstring_equalLit (id, "_inline")
2702 || cstring_equalLit (id, "__inline__"))
2703 {
2704 tok = QINLINE;
2705 }
2706
2707 if (tok != BADTOK)
2708 {
2709 RETURN_TOK (tok);
2710 }
2711 }
2712
2713 le = usymtab_lookupSafe (id);
2714
2715 /*@-dependenttrans@*/
2716
2717 if (uentry_isIter (le))
2718 {
28bf4b0b 2719 /*@i32@*/ yylval.entry = le;
885824d3 2720 return (ITER_NAME);
2721 }
2722 else if (uentry_isEndIter (le))
2723 {
28bf4b0b 2724 /*@i32@*/ yylval.entry = le;
885824d3 2725 return (ITER_ENDNAME);
2726 }
2727 else if (uentry_isUndefined (le))
2728 {
2729 yylval.cname = id;
2730
2731 /* avoid parse errors for certain system built ins */
2732
2733 if (g_expectingTypeName && (cstring_firstChar (id) == '_')
2734 && (cstring_secondChar (id) == '_'))
2735 {
2736 return (TYPE_NAME_OR_ID);
2737 }
2738
2739 return (NEW_IDENTIFIER);
2740 }
2741 else if (!uentry_isDeclared (le) && !uentry_isCodeDefined (le))
2742 {
2743 if (uentry_isDatatype (le))
2744 {
2745 yylval.cname = id;
2746 return (NEW_IDENTIFIER);
2747 }
2748 else
2749 {
28bf4b0b 2750 /*@i32@*/ yylval.entry = le;
885824d3 2751 return (IDENTIFIER);
2752 }
2753 }
2754 else if (uentry_isDatatype (le))
2755 {
2756 if (!g_expectingTypeName)
2757 {
2758 yylval.cname = id;
2759
2760 return (NEW_IDENTIFIER);
2761 }
2762 else
2763 {
2764 yylval.ctyp = uentry_getAbstractType (le);
2765
2766 uentry_setUsed (le, g_currentloc);
2767 return (TYPE_NAME);
2768 }
2769 }
2770 else
2771 {
28bf4b0b 2772 /*@i32@*/ yylval.entry = le;
885824d3 2773 return (IDENTIFIER);
2774 }
2775
2776 /*@=dependenttrans@*/
2777}
2778
2779static bool processHashIdentifier (/*@only@*/ cstring id)
2780{
2781 if (context_inMacro () || context_inIterDef () ||
2782 context_inIterEnd ())
2783 {
2784 uentry le;
2785
2786 context_clearJustPopped ();
2787
2788 lastidprocessed = id;
2789 le = usymtab_lookupSafe (id);
2790
2791 if (uentry_isParam (le) || uentry_isRefParam (le))
2792 {
2793 return TRUE;
2794 }
2795 else
2796 {
2797 return FALSE;
2798 }
2799 }
2800 else
2801 {
2802 cstring_free (id);
2803 return FALSE;
2804 }
2805}
2806
2807
2808static /*@only@*/ exprNode processString ()
2809{
2810 exprNode res;
2811 fileloc loc;
2812 char *nl = strchr (yytext, '\n');
2813 cstring ns = cstring_fromCharsNew (yytext);
2814
2815 if (nl == NULL)
2816 {
2817 loc = fileloc_copy (g_currentloc);
2818 addColumn (cstring_length (ns));
2819 }
2820 else
2821 {
2822 char *lastnl = nl;
2823
2824 loc = fileloc_copy (g_currentloc);
2825
2826 context_incLineno ();
2827
2828 while ((nl = strchr ((nl + 1), '\n')) != NULL)
2829 {
2830 context_incLineno ();
2831 lastnl = nl;
2832 }
2833 }
2834
2835
2836 res = exprNode_stringLiteral (ns, loc);
2837 return (res);
2838}
2839
2840static
2841char processChar ()
2842{
2843 char fchar;
2844 char next;
2845
2846 llassert (*yytext != '\0');
2847 fchar = *(yytext + 1);
2848 if (fchar != '\\') return fchar;
2849
2850 next = *(yytext + 2);
2851
2852 switch (next)
2853 {
2854 case 'n': return '\n';
2855 case 't': return '\t';
2856 case '\"': return '\"';
2857 case '\'': return '\'';
2858 case '\\': return '\\';
2859 default: return '\0';
2860 }
2861}
2862
2863static
2864double processFloat ()
2865{
2866 double ret = atof (yytext);
2867
2868 return (ret);
2869}
2870
2871static
2872long processHex ()
2873{
2874 int index = 2;
2875 long val = 0;
2876
2877 llassert (yytext[0] == '0'
2878 && (yytext[1] == 'X' || yytext[1] == 'x'));
2879
2880 while (yytext[index] != '\0') {
2881 int tval;
2882 char c = yytext[index];
2883
2884 if (c >= '0' && c <= '9') {
2885 tval = (int) c - (int) '0';
2886 } else if (c >= 'A' && c <= 'F') {
2887 tval = (int) c - (int) 'A' + 10;
2888 } else if (c >= 'a' && c <= 'f') {
2889 tval = (int) c - (int) 'a' + 10;
a0a162cd 2890 } else if (c == 'U' || c == 'L' || c == 'u' || c == 'l') {
2891 index++;
2892 while (yytext[index] != '\0') {
2893 if (c == 'U' || c == 'L' || c == 'u' || c == 'l') {
2894 ;
2895 } else {
2896 voptgenerror
2897 (FLG_SYNTAX,
2898 message ("Invalid character (%c) following specifier in hex constant: %s",
2899 c, cstring_fromChars (yytext)),
2900 g_currentloc);
2901 }
2902 index++;
2903 }
2904
2905 break;
885824d3 2906 } else {
2907 voptgenerror
2908 (FLG_SYNTAX,
2909 message ("Invalid character (%c) in hex constant: %s",
2910 c, cstring_fromChars (yytext)),
2911 g_currentloc);
2912 break;
2913 }
2914
2915 val = (val * 16) + tval;
2916 index++;
2917 }
2918
2919 DPRINTF (("Hex constant: %s = %ld", yytext, val));
2920 return val;
2921}
2922
2923static
2924long processOctal ()
2925{
2926 int index = 1;
2927 long val = 0;
2928
2929 llassert (yytext[0] == '0' && 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 <= '7') {
2936 tval = (int) c - (int) '0';
2937 } else {
2938 voptgenerror
2939 (FLG_SYNTAX,
2940 message ("Invalid character (%c) in octal constant: %s",
2941 c, cstring_fromChars (yytext)),
2942 g_currentloc);
2943 break;
2944 }
2945
2946 val = (val * 8) + tval;
2947 index++;
2948 }
2949
2950 DPRINTF (("Octal constant: %s = %ld", yytext, val));
2951 return val;
2952}
2953
2954static
2955long processDec ()
2956{
2957 return (atol (yytext));
2958}
2959
2960static int
2961processSpec (int tok)
2962{
2963 size_t length = strlen (yytext);
2964
2965
2966 if (inSpecPart)
2967 {
2968 setTokLengthT (length);
2969 RETURN_TOK (tok);
2970 }
2971 else
2972 {
2973
2974 context_saveLocation ();
2975 setTokLengthT (length);
2976 return (processIdentifier (makeIdentifier (yytext)));
2977 }
2978}
08eb3d0e 2979
2980void cscanner_expectingMetaStateName ()
2981{
2982 llassert (!expectingMetaStateName);
2983 llassert (context_inFunctionHeader ());
2984 expectingMetaStateName = TRUE;
2985}
2986
2987void cscanner_clearExpectingMetaStateName ()
2988{
2989 llassert (expectingMetaStateName);
2990 expectingMetaStateName = FALSE;
2991}
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