]> andersk Git - splint.git/blame - src/cscanner.l
andersk / splint.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Changed checking of complete descruction so +strictdestroy is no
[splint.git] / src / cscanner.l
CommitLineData
ac0860d8 1/*;-*-C-*-;
11db3170 2** Splint - annotation-assisted static program checker
3** Copyright (C) 1994-2001 University of Virginia,
4** Massachusetts Institute of Technology
ac0860d8 5**
11db3170 6** This program is free software; you can redistribute it and/or modify it
7** under the terms of the GNU General Public License as published by the
8** Free Software Foundation; either version 2 of the License, or (at your
9** option) any later version.
10**
11** This program is distributed in the hope that it will be useful, but
12** WITHOUT ANY WARRANTY; without even the implied warranty of
13** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14** General Public License for more details.
15**
16** The GNU General Public License is available from http://www.gnu.org/ or
17** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18** MA 02111-1307, USA.
ac0860d8 19**
11db3170 20** For information on lclint: lclint-request@cs.virginia.edu
21** To report a bug: lclint-bug@cs.virginia.edu
22** For more information: http://www.splint.org
23*/
24/*
25** cscanner.l
ac0860d8 26**
11db3170 27** Flex lexer for C.
28** Based on a C lexer by Nate Osgood
29** from hacrat@catfish.lcs.mit.edu Mon Jun 14 13:06:32 1993
ac0860d8 30*/
31/*
11db3170 32** Modified by Herbert 08/19/97:
33** - added #include for IBM's OS/2 compiler.
34** - fixed weird bug with lookup of tmp files (OS/2 and MSDOS only).
35*/
ac0860d8 36/*
11db3170 37** Modified by Mike Smith
38** Corrected missing 'line' in scanf() calls in handleSpecial().
39** Without this, I get an error when LCLint hits a '#line' directive
40** in the pre-pre-processed source files. For safety, I have made these
41** conditional on OS2 and MSDOS because I don't understand why noone else
42** has seen this problem.
43**
44** Modified by Mike Smith, 4th June 1997
45** Finally resolved the #line problem. The scanf() calls have been fixed to
46** allow the following #line forms:-
47**
48** #line 123 "filename"
49** #line 123
50** # 123 "filename"
51** # 123
52**
53** The last two are generated by the GNU pre-processor, apparently
54*/
ac0860d8 55
56Digit [0-9]
57Letter [a-zA-Z_$]
58H [a-fA-F0-9]
59E [Ee][+-]?{Digit}+
60U (u|U)
61L (l|L)
62FS (f|F|l|L)
63IS (u|U|l|L)*
64ULSuffix ({U}{L}|{L}{U})
65
66%{
ac0860d8 67# include "lclintMacros.nf"
9622303f 68# if defined(OS2) && defined(__IBMC__)
69 /* needed for isatty()... */
70# include <io.h>
71# else
ac0860d8 72# include <unistd.h>
9622303f 73# endif
74
ac0860d8 75# include "basic.h"
76
77# include "cgrammar.h"
78# include "cgrammar_tokens.h"
79
80# include "fileIdList.h"
81# include "portab.h"
82
ac0860d8 83static bool lastWasString = FALSE;
84static char savechar = '\0';
85
86/*@notfunction@*/
87# define yyinput() (incColumn (), getc (yyin))
88
89static /*@owned@*/ cstring lastidprocessed = cstring_undefined;
90static int lminput (void);
91static int tokLength = 0;
92static bool inSpecPart = FALSE;
93static bool continueLine = FALSE;
94
95static int ninput (void);
96static char processChar (void);
97static double processFloat (void);
e0b363ad 98static /*@only@*/ exprNode processString (void) ;
99static /*@only@*/ exprNode processWideString (void) ;
ac0860d8 100static long processDec (void);
101static long processHex (void);
102static long processOctal (void);
103static int processIdentifier (/*@only@*/ cstring)
104 /*@globals undef lastidprocessed@*/ ;
105static bool processHashIdentifier (/*@only@*/ cstring)
106 /*@globals undef lastidprocessed@*/ ;
107
108static int processSpec (int);
109static bool handleSpecial (char *);
110static int handleLlSpecial (void);
111static void handleMacro (void);
112static bool processMacro (void);
113static /*@only@*/ cstring makeIdentifier (char *);
114
115/* yes, this is exported! */
116bool g_expectingTypeName = TRUE; /* beginning of file can be type name! */
117
118static bool expectingMetaStateName = FALSE;
119
120static int returnInt (ctype, long);
121static int returnFloat (ctype, double);
122static int returnChar (char);
123static void setTokLength (int) /*@modifies g_currentloc@*/ ;
124static void setTokLengthT (size_t) /*@modifies g_currentloc@*/ ;
125
126static void advanceLine (void)
127{
128 tokLength = 0;
129 beginLine ();
130}
131
132/*@-allmacros@*/
133# define RETURN_INT(c,i) \
134 do { lastWasString = FALSE; \
135 return (returnInt (c, i)); } while (FALSE)
136
137# define RETURN_FLOAT(c,f) \
138 do { lastWasString = FALSE; \
139 return (returnFloat (c, f)); \
140 } while (FALSE)
141
142# define RETURN_CHAR(c) \
143 do { lastWasString = FALSE; \
144 return (returnChar (c)); \
145 } while (FALSE)
146
147# define RETURN_TOK(t) \
148 do { yylval.tok = lltok_create (t, fileloc_decColumn (g_currentloc, tokLength)); \
149 tokLength = 0; \
150 lastWasString = FALSE; \
151 return (t); } while (FALSE)
152
153# define RETURN_TYPE(t, ct) \
154 do { yylval.ctyp = ct; tokLength = 0; return (t); } while (FALSE)
155
156/* don't fileloc_decColumn (g_currentloc, tokLength));
157 the string could have \n's in it!
158*/
159
160# define RETURN_STRING(c) \
161 do { yylval.expr = exprNode_stringLiteral (c, fileloc_decColumn (g_currentloc, tokLength)); \
162 tokLength = 0; \
163 lastWasString = TRUE; \
164 return (CCONSTANT); } while (FALSE)
165
166# define RETURN_EXPR(e) \
167 do { yylval.expr = e; \
168 tokLength = 0; \
169 lastWasString = TRUE; \
170 return (CCONSTANT); } while (FALSE)
171
172/*@=allmacros@*/
173
174static void setTokLength (int len)
175{
176 addColumn (len);
177 tokLength = len;
178 DPRINTF (("Set tok length: %d", len));
179}
180
181static void setTokLengthT (size_t len)
182{
183 setTokLength (size_toInt (len));
184}
185
186# include "flex.head"
187
188/*@-unrecog@*/ /*@i5343@*/
189
190%}
191
192%%
193
194"/*" { llfatalbug (cstring_makeLiteral ("Comment in pre-processor output")); }
195
196"#"{Letter}({Letter}|{Digit})* {
197 context_saveLocation ();
198 setTokLength (longUnsigned_toInt (mstring_length (yytext)));
199
200 if (processHashIdentifier (makeIdentifier (yytext + 1)))
201 {
202 if (lastWasString)
203 {
204 /* was nothing! */ /*@i32@*/
205 RETURN_STRING (cstring_makeLiteral ("\"\""));
206 }
207 else
208 {
209 RETURN_STRING (cstring_makeLiteral ("\"\""));
210 }
211 }
212 else
213 {
214 if (handleSpecial (yytext))
215 {
216 setTokLength (1);
217 RETURN_TOK (0);
218 }
219 }
220 }
221"#" { if (handleSpecial (yytext))
222 {
223 setTokLength (1); RETURN_TOK (0);
224 }
225 }
226"..." { setTokLength (3); RETURN_TOK (CTOK_ELIPSIS); }
227"break" { setTokLength (5); RETURN_TOK (BREAK); }
228"case" { setTokLength (4); RETURN_TOK (CASE); }
229"continue" { setTokLength (8); RETURN_TOK (CONTINUE); }
230"default" { setTokLength (7); RETURN_TOK (DEFAULT); }
231"do" { setTokLength (2); RETURN_TOK (DO); }
232"else" { setTokLength (4); RETURN_TOK (CELSE); }
233"for" { setTokLength (3); RETURN_TOK (CFOR); }
234"goto" { setTokLength (4); RETURN_TOK (GOTO); }
235"if" { setTokLength (2); RETURN_TOK (CIF); }
236"return" { setTokLength (6); RETURN_TOK (RETURN); }
237"sizeof" { setTokLength (6); RETURN_TOK (CSIZEOF); }
238"offsetof" { setTokLength (8); RETURN_TOK (COFFSETOF); }
239"switch" { setTokLength (6); RETURN_TOK (SWITCH); }
240"while" { setTokLength (5); RETURN_TOK (WHILE); }
241"va_arg" { setTokLength (6); RETURN_TOK (VA_ARG); }
242"va_dcl" { setTokLength (6); RETURN_TOK (VA_DCL); }
243"inline" {
244 /* gcc extension...this might not be appropriate */
245 setTokLength (6); RETURN_TOK (QINLINE); }
246
247"struct" { setTokLength (6); RETURN_TOK (CSTRUCT); }
248"typedef" { setTokLength (7); RETURN_TOK (CTYPEDEF); }
249
250"union" { setTokLength (5); RETURN_TOK (CUNION); }
251"enum" { setTokLength (4); RETURN_TOK (CENUM); }
252
253"void" { setTokLength (4); RETURN_TYPE (CVOID, ctype_void); }
254"int" { setTokLength (3); RETURN_TYPE (CINT, ctype_int); }
255"double" { setTokLength (6); RETURN_TYPE (CDOUBLE, ctype_double); }
256"char" { setTokLength (4); RETURN_TYPE (CGCHAR, ctype_char); }
257"float" { setTokLength (5); RETURN_TYPE (CGFLOAT, ctype_float); }
258
259"long" { setTokLength (4); RETURN_TOK (QLONG); }
260"short" { setTokLength (5); RETURN_TOK (QSHORT); }
261"unsigned" { setTokLength (8); RETURN_TOK (QUNSIGNED); }
262"signed" { setTokLength (6); RETURN_TOK (QSIGNED); }
263
264"volatile" { setTokLength (8); RETURN_TOK (QVOLATILE); }
265"const" { setTokLength (5); RETURN_TOK (QCONST); }
266
267 /* some systems expect this! [gack!] */
268"__const" { setTokLength (7); RETURN_TOK (QCONST); }
269
270"extern" { setTokLength (6); RETURN_TOK (QEXTERN); }
271"auto" { setTokLength (4); RETURN_TOK (QAUTO); }
272"register" { setTokLength (8); RETURN_TOK (QREGISTER); }
273"static" { setTokLength (6); RETURN_TOK (QSTATIC); }
274
275\"(\\.|[^\\"])*\"([ \t\n]*\"(\\.|[^\\"])*\")* { RETURN_EXPR (processString ()); }
e0b363ad 276L\"(\\.|[^\\"])*\"([ \t\n]*\"(\\.|[^\\"])*\")* { RETURN_EXPR (processWideString ()); }
ac0860d8 277"out" { return (processSpec (QOUT)); }
278"in" { return (processSpec (QIN)); }
279"partial" { return (processSpec (QPARTIAL)); }
280"special" { return (processSpec (QSPECIAL)); }
281"anytype" { return (processSpec (QANYTYPE)); }
282"integraltype" { return (processSpec (QINTEGRALTYPE)); }
283"unsignedintegraltype" { return (processSpec (QUNSIGNEDINTEGRALTYPE)); }
284"signedintegraltype" { return (processSpec (QSIGNEDINTEGRALTYPE)); }
285"keep" { return (processSpec (QKEEP)); }
286"null" { return (processSpec (QNULL)); }
287"notnull" { return (processSpec (QNOTNULL)); }
288"isnull" { return (processSpec (QISNULL)); }
289"truenull" { return (processSpec (QTRUENULL)); }
290"falsenull" { return (processSpec (QFALSENULL)); }
291"relnull" { return (processSpec (QRELNULL)); }
292"reldef" { return (processSpec (QRELDEF)); }
293"exposed" { return (processSpec (QEXPOSED)); }
294"newref" { return (processSpec (QNEWREF)); }
295"tempref" { return (processSpec (QTEMPREF)); }
296"killref" { return (processSpec (QKILLREF)); }
297"refcounted" { return (processSpec (QREFCOUNTED)); }
298"checked" { return (processSpec (QCHECKED)); }
299"checkmod" { return (processSpec (QCHECKMOD)); }
300"checkedstrict" { return (processSpec (QCHECKEDSTRICT)); }
301"unchecked" { return (processSpec (QUNCHECKED)); }
302"only" { return (processSpec (QONLY)); }
303"owned" { return (processSpec (QOWNED)); }
304"observer" { return (processSpec (QOBSERVER)); }
305"dependent" { return (processSpec (QDEPENDENT)); }
306"unused" { return (processSpec (QUNUSED)); }
307"external" { return (processSpec (QEXTERNAL)); }
308"sef" { return (processSpec (QSEF)); }
309"shared" { return (processSpec (QSHARED)); }
310"yield" { return (processSpec (QYIELD)); }
311"undef" { return (processSpec (QUNDEF)); }
312"killed" { return (processSpec (QKILLED)); }
313"nullterminated" { return (processSpec (QNULLTERMINATED));}
314"MaxSet" { return (processSpec (QMAXSET));}
315"MaxRead" { return (processSpec (QMAXREAD));}
316"maxSet" { return (processSpec (QMAXSET));}
317"maxRead" { return (processSpec (QMAXREAD));}
318
319{Letter}({Letter}|{Digit})* { int tok;
320 context_saveLocation ();
321 setTokLength (longUnsigned_toInt (mstring_length (yytext)));
322 tok = processIdentifier (makeIdentifier (yytext));
323 if (tok != BADTOK)
324 {
325 return (tok);
326 }
327 }
3280[xX]{H}+ { setTokLengthT (mstring_length (yytext));
329 RETURN_INT (ctype_int, processHex ()); /* evs 2000-05-17 was ctype_uint */
330 }
3310[xX]{H}+{L} { setTokLengthT (mstring_length (yytext));
332 RETURN_INT (ctype_lint, processHex ()); }
3330[xX]{H}+{L}{L} { setTokLengthT (mstring_length (yytext));
334 RETURN_INT (ctype_llint, processHex ()); }
3350[xX]{H}+{U} { setTokLengthT (mstring_length (yytext));
336 RETURN_INT (ctype_uint, processHex ()); }
3370[xX]{H}+{ULSuffix} { setTokLengthT (mstring_length (yytext));
338 RETURN_INT (ctype_ulint, processHex ()); }
3390[xX]{H}+{U}{L}{L} { setTokLengthT (mstring_length (yytext));
340 RETURN_INT (ctype_ullint, processHex ()); }
3410[xX]{H}+{L}{L}{U} { setTokLengthT (mstring_length (yytext));
342 RETURN_INT (ctype_ullint, processHex ()); }
3430{Digit}+ { setTokLengthT (mstring_length (yytext));
344 RETURN_INT (ctype_int, processOctal ()); }
3450{Digit}+{U} { setTokLengthT (mstring_length (yytext));
346 RETURN_INT (ctype_uint, processOctal ()); }
3470{Digit}+{L} { setTokLengthT (mstring_length (yytext));
348 RETURN_INT (ctype_lint, processOctal ()); }
3490{Digit}+{L}{L} { setTokLengthT (mstring_length (yytext));
350 RETURN_INT (ctype_llint, processOctal ()); }
3510{Digit}+{ULSuffix} { setTokLengthT (mstring_length (yytext));
352 RETURN_INT (ctype_ulint, processOctal ()); }
3530{Digit}+{U}{L}{L} { setTokLengthT (mstring_length (yytext));
354 RETURN_INT (ctype_ullint, processOctal ()); }
3550{Digit}+{L}{L}{U} { setTokLengthT (mstring_length (yytext));
356 RETURN_INT (ctype_ullint, processOctal ()); }
357{Digit}+ { setTokLengthT (mstring_length (yytext));
358 RETURN_INT (ctype_int, processDec ()); }
359{Digit}+{U} { setTokLengthT (mstring_length (yytext));
360 RETURN_INT (ctype_uint, processDec ()); }
361{Digit}+{L} { setTokLengthT (mstring_length (yytext));
362 RETURN_INT (ctype_lint, processDec ()); }
363{Digit}+{L}{L} { setTokLengthT (mstring_length (yytext));
364 RETURN_INT (ctype_llint, processDec ()); }
365{Digit}+{ULSuffix} { setTokLengthT (mstring_length (yytext));
366 RETURN_INT (ctype_ulint, processDec ()); }
367{Digit}+{U}{L}{L} { setTokLengthT (mstring_length (yytext));
368 RETURN_INT (ctype_ullint, processDec ()); }
369{Digit}+{L}{L}{U} { setTokLengthT (mstring_length (yytext));
370 RETURN_INT (ctype_ullint, processDec ()); }
371'(\\.|[^\\'])+' { setTokLengthT (mstring_length (yytext));
372 RETURN_CHAR (processChar ()); }
373L'(\\.|[^\\'])+' { setTokLengthT (mstring_length (yytext));
374 RETURN_CHAR (processChar ()); }
375{Digit}+{E}[fF] { setTokLengthT (mstring_length (yytext));
376 RETURN_FLOAT (ctype_float, processFloat ()); }
377{Digit}+{E}[lL] { setTokLengthT (mstring_length (yytext));
378 RETURN_FLOAT (ctype_ldouble, processFloat ()); }
379{Digit}+{E} { setTokLengthT (mstring_length (yytext));
380 RETURN_FLOAT (ctype_double, processFloat ()); }
381
382{Digit}*"."{Digit}+({E})?[fF] { setTokLengthT (mstring_length (yytext));
383 RETURN_FLOAT (ctype_float, processFloat ()); }
384{Digit}*"."{Digit}+({E})?[lL] { setTokLengthT (mstring_length (yytext));
385 RETURN_FLOAT (ctype_ldouble, processFloat ()); }
386{Digit}*"."{Digit}+({E})? { setTokLengthT (mstring_length (yytext));
387 RETURN_FLOAT (ctype_double, processFloat ()); }
388
389{Digit}+"."{Digit}*({E})?[fF] { setTokLengthT (mstring_length (yytext));
390 RETURN_FLOAT (ctype_float, processFloat ()); }
391{Digit}+"."{Digit}*({E})?[lL] { setTokLengthT (mstring_length (yytext));
392 RETURN_FLOAT (ctype_ldouble, processFloat ()); }
393{Digit}+"."{Digit}*({E})? { setTokLengthT (mstring_length (yytext));
394 RETURN_FLOAT (ctype_double, processFloat ()); }
395
396">>=" { setTokLength (3); RETURN_TOK (RIGHT_ASSIGN); }
397"<<=" { setTokLength (3); RETURN_TOK (LEFT_ASSIGN); }
398"+=" { setTokLength (2); RETURN_TOK (ADD_ASSIGN); }
399"-=" { setTokLength (2); RETURN_TOK (SUB_ASSIGN); }
400"*=" { setTokLength (2); RETURN_TOK (MUL_ASSIGN); }
401"/=" { setTokLength (2); RETURN_TOK (DIV_ASSIGN); }
402"%=" { setTokLength (2); RETURN_TOK (MOD_ASSIGN); }
403"&=" { setTokLength (2); RETURN_TOK (AND_ASSIGN); }
404"^=" { setTokLength (2); RETURN_TOK (XOR_ASSIGN); }
405"|=" { setTokLength (2); RETURN_TOK (OR_ASSIGN); }
406">>" { setTokLength (2); RETURN_TOK (RIGHT_OP); }
407"<<" { setTokLength (2); RETURN_TOK (LEFT_OP); }
408"++" { setTokLength (2); RETURN_TOK (INC_OP); }
409"--" { setTokLength (2); RETURN_TOK (DEC_OP); }
410"->" { setTokLength (2); RETURN_TOK (ARROW_OP); }
411"&&" { setTokLength (2); RETURN_TOK (AND_OP); }
412"||" { setTokLength (2); RETURN_TOK (OR_OP); }
413"<=" { setTokLength (2); RETURN_TOK (LE_OP); }
414">=" { setTokLength (2); RETURN_TOK (GE_OP); }
415"==" { setTokLength (2); RETURN_TOK (EQ_OP); }
416"!=" { setTokLength (2); RETURN_TOK (NE_OP); }
417";" { setTokLength (1); RETURN_TOK (TSEMI); }
418"{" { setTokLength (1); RETURN_TOK (TLBRACE); }
419"}" { setTokLength (1); RETURN_TOK (TRBRACE); }
420"," { setTokLength (1); RETURN_TOK (TCOMMA); }
421":" { setTokLength (1); RETURN_TOK (TCOLON); }
422"=" { setTokLength (1); RETURN_TOK (TASSIGN); }
423"(" { setTokLength (1); RETURN_TOK (TLPAREN); }
424")" { setTokLength (1); RETURN_TOK (TRPAREN); }
425"[" { setTokLength (1); RETURN_TOK (TLSQBR); }
426"]" { setTokLength (1); RETURN_TOK (TRSQBR); }
427"." { setTokLength (1); RETURN_TOK (TDOT); }
428"&" { setTokLength (1); RETURN_TOK (TAMPERSAND); }
429"!" { setTokLength (1); RETURN_TOK (TEXCL); }
430
431
432"~" { setTokLength (1); RETURN_TOK (TTILDE); }
433"-" { setTokLength (1); RETURN_TOK (TMINUS); }
434"+" { setTokLength (1); RETURN_TOK (TPLUS); }
435"*" { setTokLength (1); RETURN_TOK (TMULT); }
436"/" { setTokLength (1); RETURN_TOK (TDIV); }
437"%" { setTokLength (1); RETURN_TOK (TPERCENT); }
438"<" { setTokLength (1); RETURN_TOK (TLT); }
439">" { setTokLength (1); RETURN_TOK (TGT); }
440"^" { setTokLength (1); RETURN_TOK (TCIRC); }
441"|" { setTokLength (1); RETURN_TOK (TBAR); }
442"?" { setTokLength (1); RETURN_TOK (TQUEST); }
443
444
445"/\\" { setTokLength (1); RETURN_TOK (TCAND); }
446
447
448[ \t\v\f] { incColumn (); }
449\n { context_incLineno ();
450 if (tokLength != 0) {
451 tokLength = 0;
452 /* No error to report
453 voptgenerror
454 (FLG_SYNTAX,
455 message ("Likely parse error: token spans multiple lines."),
456 g_currentloc);
457 */
458 }
459
460 if (continueLine)
461 {
462 continueLine = FALSE;
463 }
464 else
465 {
466 if (context_inMacro ())
467 {
468 /* Don't use RETURN_TOK */
469 yylval.tok = lltok_create (TENDMACRO, g_currentloc);
470 lastWasString = FALSE;
471 return (TENDMACRO);
472 }
473 }
474 }
475"@@MR@@" { setTokLength (6);
476
477 if (processMacro ()) {
478 if (context_inIterDef ())
479 {
480 RETURN_TOK (LLMACROITER);
481 }
482 if (context_inIterEnd ())
483 {
484 RETURN_TOK (LLMACROEND);
485 }
486 if (context_inMacro ())
487 {
488 RETURN_TOK (LLMACRO);
489 }
490 }
491 }
492"@QLMR" { if (context_inHeader () || context_inFunction ())
493 {
494 handleMacro ();
495 }
496 else
497 {
498 int nspchar = ninput ();
499 int nspaces;
500
501 /*
502 ** This is a hack to get the column number correct.
503 */
504
505 llassert (nspchar >= '0' && nspchar <= '9');
506
507 nspaces = nspchar - '0';
508
509 setTokLength (5 + nspaces);
510
511 if (processMacro ())
512 {
a469ccf0 513 DPRINTF (("Here we are: %s", context_unparse ()));
514
ac0860d8 515 if (context_inIterDef ())
516 {
517 RETURN_TOK (LLMACROITER);
518 }
519 if (context_inIterEnd ())
520 {
521 RETURN_TOK (LLMACROEND);
522 }
523 if (context_inMacro ())
524 {
525 RETURN_TOK (LLMACRO);
526 }
527 }
528 }
529 }
530"@.CT" { setTokLength (4); lldiagmsg (ctype_unparseTable ()); }
531"@.FA" { setTokLength (4); lldiagmsg (message ("Access types: %q", typeIdSet_unparse (context_fileAccessTypes ()))); }
532"@.F" { setTokLength (3);
533 lldiagmsg (message ("%q: *** marker ***", fileloc_unparse (g_currentloc)));
534 }
535"@.L" { setTokLength (3); usymtab_printLocal (); }
536"@.A" { setTokLength (3); lldiagmsg (usymtab_unparseAliases ()); }
537"@.C" { setTokLength (3); lldiagmsg (context_unparse ()); }
538"@.W" { setTokLength (3); lldiagmsg (context_unparseClauses ()); }
539"@.G" { setTokLength (3); usymtab_printGuards (); }
540"@.S" { setTokLength (3); usymtab_printOut (); }
541"@.X" { setTokLength (3); usymtab_printAll (); }
542"@.Z" { setTokLength (3); usymtab_printComplete (); }
543"@.T" { setTokLength (3); usymtab_printTypes (); }
544"@.K" { setTokLength (3); lldiagmsg (usymtab_unparseStack ()); }
545"@.M" { setTokLength (3);
546 lldiagmsg (message ("Can modify: %q",
547 sRefSet_unparse (context_modList ())));
548 }
549"%{" { /* BEFORE_COMMENT_MARKER */
550 int tok;
551 incColumn (); incColumn ();
552 tok = handleLlSpecial ();
553
554 if (tok != BADTOK)
555 {
556 if (tok == CANNOTATION) {
557 return (tok);
558 } else {
559 /* Beware - this bashes yylval! */
560 RETURN_TOK (tok);
561 }
562 }
563 }
564"%}" { /* AFTER_COMMENT_MARKER */
565 setTokLength (2);
566 inSpecPart = FALSE;
567 RETURN_TOK (QENDMACRO); }
568"\\" { incColumn (); continueLine = TRUE; }
569. { incColumn ();
570 if ((int) *yytext == 13 ) {
571 ;
572 } else {
573 voptgenerror
574 (FLG_SYNTAX,
575 message ("Invalid character (ascii: %d), skipping character",
576 (int)(*yytext)),
577 g_currentloc);
578 }
579 }
580%%
581
582struct skeyword
583{
584 /*@null@*/ /*@observer@*/ char *name;
585 int token;
586} ;
587
588/*
589** These tokens are followed by syntax that is parsed by the
590** grammar proper.
591*/
592
593struct skeyword s_parsetable[] = {
594 { "modifies", QMODIFIES } ,
595 { "globals", QGLOBALS } ,
596 { "alt", QALT } ,
597 { "warn", QWARN } ,
598 { "constant", QCONSTANT } ,
599 { "function", QFUNCTION } ,
600 { "iter", QITER } ,
601 { "defines", QDEFINES } ,
602 { "uses", QUSES } ,
603 { "allocates", QALLOCATES } ,
604 { "sets", QSETS } ,
605 { "releases", QRELEASES } ,
606 { "pre", QPRECLAUSE } ,
607 { "post", QPOSTCLAUSE } ,
608 { "setBufferSize", QSETBUFFERSIZE},
609 { "setStringLength", QSETSTRINGLENGTH},
610 { "testinRange", QTESTINRANGE},
611 { "requires", QPRECLAUSE } ,
612 { "ensures", QPOSTCLAUSE } ,
613 { NULL, BADTOK }
614} ;
615
616/*
617** These tokens are either stand-alone tokens, or followed by
618** token-specific text.
619*/
620
621struct skeyword s_keytable[] = {
622 { "anytype", QANYTYPE } ,
623 { "integraltype", QINTEGRALTYPE } ,
624 { "unsignedintegraltype", QUNSIGNEDINTEGRALTYPE } ,
625 { "signedintegraltype", QSIGNEDINTEGRALTYPE } ,
626 { "out", QOUT } ,
627 { "in", QIN } ,
628 { "only", QONLY } ,
629 { "owned", QOWNED } ,
630 { "dependent", QDEPENDENT } ,
631 { "partial", QPARTIAL } ,
632 { "special", QSPECIAL } ,
633 { "truenull", QTRUENULL } ,
634 { "falsenull", QFALSENULL } ,
635 { "keep", QKEEP } ,
636 { "kept", QKEPT } ,
637 { "notnull", QNOTNULL } ,
638 { "abstract", QABSTRACT } ,
639 { "concrete", QCONCRETE } ,
640 { "mutable", QMUTABLE } ,
641 { "immutable", QIMMUTABLE } ,
642 { "unused", QUNUSED } ,
643 { "external", QEXTERNAL } ,
644 { "sef", QSEF } ,
645 { "unique", QUNIQUE } ,
646 { "returned", QRETURNED } ,
647 { "exposed", QEXPOSED } ,
648 { "refcounted", QREFCOUNTED } ,
649 { "refs", QREFS } ,
650 { "newref", QNEWREF } ,
651 { "tempref", QTEMPREF } ,
652 { "killref", QKILLREF } ,
653 { "null", QNULL } ,
654 { "relnull", QRELNULL } ,
655 { "nullterminated", QNULLTERMINATED },
656 { "setBufferSize", QSETBUFFERSIZE },
657 { "testInRange", QTESTINRANGE},
658 { "MaxSet", QMAXSET},
659 { "MaxRead", QMAXREAD},
660 { "reldef", QRELDEF } ,
661 { "observer", QOBSERVER } ,
662 { "exits", QEXITS } ,
663 { "mayexit", QMAYEXIT } ,
664 { "trueexit", QTRUEEXIT } ,
665 { "falseexit", QFALSEEXIT } ,
666 { "neverexit", QNEVEREXIT } ,
667 { "temp", QTEMP } ,
668 { "shared", QSHARED } ,
669 { "ref", QREF } ,
670 { "unchecked", QUNCHECKED } ,
671 { "checked", QCHECKED } ,
672 { "checkmod", QCHECKMOD } ,
673 { "checkedstrict", QCHECKEDSTRICT } ,
674 { "innercontinue", QINNERCONTINUE } ,
675 { "innerbreak", QINNERBREAK } ,
676 { "loopbreak", QLOOPBREAK } ,
677 { "switchbreak", QSWITCHBREAK } ,
678 { "safebreak", QSAFEBREAK } ,
679 { "fallthrough", QFALLTHROUGH } ,
680 { "l_fallthrou", QLINTFALLTHROUGH } ,
681 { "l_fallth", QLINTFALLTHRU } ,
682 { "notreached", QNOTREACHED } ,
683 { "l_notreach", QLINTNOTREACHED } ,
684 { "printflike", QPRINTFLIKE } ,
685 { "l_printfli", QLINTPRINTFLIKE } ,
686 { "scanflike", QSCANFLIKE } ,
687 { "messagelike", QMESSAGELIKE } ,
688 { "l_argsus", QARGSUSED } ,
689 { NULL, BADTOK }
690} ;
691
692/*
693** would be better if these weren't hard coded...
694*/
695
696static bool isArtificial (cstring s)
697{
698 return (cstring_equalLit (s, "modifies")
699 || cstring_equalLit (s, "globals")
700 || cstring_equalLit (s, "warn")
701 || cstring_equalLit (s, "alt"));
702}
703
704void swallowMacro (void)
705{
706 int i;
707 bool skipnext = FALSE;
708
709 while ((i = lminput ()) != EOF)
710 {
711 char c = (char) i;
712
713
714 if (c == '\\')
715 {
716 skipnext = TRUE;
717 }
718 else if (c == '\n')
719 {
720 if (skipnext)
721 {
722 skipnext = FALSE;
723 }
724 else
725 {
726 reader_checkUngetc (i, yyin);
727 return;
728 }
729 }
730 }
731
732 if (i != EOF)
733 {
734 reader_checkUngetc (i, yyin);
735 }
736}
737
738static int commentMarkerToken (cstring s)
739{
740 int i = 0;
741
742 while (s_parsetable[i].name != NULL)
743 {
744 DPRINTF (("Try :%s:%s:", s, s_parsetable[i].name));
745
746 if (cstring_equalLit (s, s_parsetable[i].name))
747 {
748 return s_parsetable[i].token;
749 }
750
751 i++;
752 }
753
754 return BADTOK;
755}
756
757static int tokenMacroCode (cstring s)
758{
759 int i = 0;
760
761 while (s_keytable[i].name != NULL)
762 {
763 if (cstring_equalLit (s, s_keytable[i].name))
764 {
765 if (s_keytable[i].token == QLINTFALLTHROUGH)
766 {
767 voptgenerror
768 (FLG_WARNLINTCOMMENTS,
769 cstring_makeLiteral
770 ("Traditional lint comment /*FALLTHROUGH*/ used. "
771 "This is interpreted by "
772 "LCLint in the same way as most Unix lints, but it is "
773 "preferable to replace it with the /*@fallthrough@*/ "
774 "semantic comment"),
775 g_currentloc);
776 return QFALLTHROUGH;
777 }
778 else if (s_keytable[i].token == QLINTFALLTHRU)
779 {
780 voptgenerror
781 (FLG_WARNLINTCOMMENTS,
782 cstring_makeLiteral
783 ("Traditional lint comment /*FALLTHRU*/ used. "
784 "This is interpreted by "
785 "LCLint in the same way as most Unix lints, but it is "
786 "preferable to replace it with the /*@fallthrough@*/ "
787 "semantic comment"),
788 g_currentloc);
789 return QFALLTHROUGH;
790 }
791 else if (s_keytable[i].token == QLINTNOTREACHED)
792 {
793 voptgenerror
794 (FLG_WARNLINTCOMMENTS,
795 cstring_makeLiteral
796 ("Traditional lint comment /*NOTREACHED*/ used. "
797 "This is interpreted by "
798 "LCLint in the same way as most Unix lints, but it is "
799 "preferable to replace it with the /*@notreached@*/ "
800 "semantic comment."),
801 g_currentloc);
802
803 return QNOTREACHED;
804 }
805 else if (s_keytable[i].token == QPRINTFLIKE)
806 {
807 setSpecialFunction (qual_createPrintfLike ());
808 return SKIPTOK;
809 }
810 else if (s_keytable[i].token == QLINTPRINTFLIKE)
811 {
812 voptgenerror
813 (FLG_WARNLINTCOMMENTS,
814 cstring_makeLiteral
815 ("Traditional lint comment /*PRINTFLIKE*/ used. "
816 "This is interpreted by "
817 "LCLint in the same way as most Unix lints, but it is "
818 "preferable to replace it with either /*@printflike@*/, "
819 "/*@scanflike@*/ or /*@messagelike@*/."),
820 g_currentloc);
821
822 setSpecialFunction (qual_createPrintfLike ());
823 return SKIPTOK;
824 }
825 else if (s_keytable[i].token == QSCANFLIKE)
826 {
827 setSpecialFunction (qual_createScanfLike ());
828 return SKIPTOK;
829 }
830 else if (s_keytable[i].token == QMESSAGELIKE)
831 {
832 setSpecialFunction (qual_createMessageLike ());
833 return SKIPTOK;
834 }
835 else if (s_keytable[i].token == QARGSUSED)
836 {
837 voptgenerror
838 (FLG_WARNLINTCOMMENTS,
839 cstring_makeLiteral
840 ("Traditional lint comment /*ARGSUSED*/ used. "
841 "This is interpreted by "
842 "LCLint in the same way as most Unix lints, but it is "
843 "preferable to use /*@unused@*/ annotations on "
844 "the unused parameters."),
845 g_currentloc);
846
847 setArgsUsed ();
848 return SKIPTOK;
849 }
850
851 return s_keytable[i].token;
852 }
853
854 i++;
855 }
856
857 return BADTOK;
858}
859
860static int lminput ()
861{
862 if (savechar == '\0')
863 {
864 incColumn ();
865 return (input ());
866 }
867 else
868 {
869 int save = (int) savechar;
870 savechar = '\0';
871 return save;
872 }
873}
874
875static void lmsavechar (char c)
876{
877 if (savechar == '\0') savechar = c;
878 else
879 {
880 llbuglit ("lmsavechar: override");
881 }
882}
883
884static int returnFloat (ctype ct, double f)
885{
886 yylval.expr = exprNode_floatLiteral (f, ct, cstring_fromChars (yytext),
887 fileloc_decColumn (g_currentloc, tokLength));
888 tokLength = 0;
889 return (CCONSTANT);
890}
891
892static int returnInt (ctype ct, long i)
893{
894 ctype c = ct;
895
896 if (ctype_equal (ct, ctype_int))
897 {
898 if (i == 0)
899 {
900 c = context_typeofZero ();
901 }
902 else if (i == 1)
903 {
904 c = context_typeofOne ();
905 }
906 }
907
908 yylval.expr = exprNode_numLiteral (c, cstring_fromChars (yytext),
909 fileloc_decColumn (g_currentloc, tokLength), i);
910 tokLength = 0;
911 return (CCONSTANT);
912}
913
914static int returnChar (char c)
915{
916 yylval.expr = exprNode_charLiteral (c, cstring_fromChars (yytext),
917 fileloc_decColumn (g_currentloc, tokLength));
918 tokLength = 0;
919 return (CCONSTANT);
920}
921
922static int ninput ()
923{
924 int c = lminput ();
925
926 if (c != EOF && ((char)c == '\n'))
927 {
928 context_incLineno ();
929 }
930
931 return c;
932}
933
934static char macro_nextChar ()
935{
936 static bool in_quote = FALSE, in_escape = FALSE, in_char = FALSE;
937 int ic;
938 char c;
939
940 ic = lminput ();
941 c = char_fromInt (ic);
942
943 if (!in_quote && !in_char && (c == '\\' || c == BEFORE_COMMENT_MARKER[0]))
944 {
945 if (c == '\\')
946 {
947 while ((c = char_fromInt (lminput ())) != '\0' && c != '\n')
948 {
949 ; /* skip to newline */
950 }
951
952 context_incLineno ();
953
954 if (c != '\0')
955 {
956 return macro_nextChar ();
957 }
958 else
959 {
960 return c;
961 }
962 }
963 else /* if (c == '@') */
964 {
965 llassert (FALSE); /*@i23@*/
966 if (handleLlSpecial () != BADTOK)
967 {
968 llerrorlit (FLG_SYNTAX, "Macro cannot use special syntax");
969 }
970
971 return macro_nextChar ();
972 }
973 }
974 else if (!in_escape && c == '\"')
975 {
976 in_quote = !in_quote;
977 }
978 else if (!in_escape && c == '\'')
979 {
980 in_char = !in_char;
981 }
982 else if ((in_quote || in_char) && c == '\\')
983 {
984 in_escape = !in_escape;
985 }
986 else if ((in_quote || in_char) && in_escape)
987 {
988 in_escape = FALSE;
989 }
990 else if (!in_quote && c == '/')
991 {
992 char c2;
993
994 if ((c2 = char_fromInt (lminput ())) == '*')
995 {
996 while (c2 != '\0')
997 {
998 while ((c2 = char_fromInt (lminput ())) != '\0'
999 && c2 != '\n' && c2 != '*')
1000 {
1001 ;
1002 }
1003
1004 if (c2 == '*')
1005 {
1006 while ((c2 = char_fromInt (lminput ())) != '\0'
1007 && c2 == '*')
1008 {
1009 ;
1010 }
1011
1012 if (c2 == '/')
1013 {
1014 goto outofcomment;
1015 }
1016 }
1017 else
1018 {
1019 llfatalerror (cstring_makeLiteral ("Macro: bad comment!"));
1020 }
1021 }
1022 outofcomment:
1023 return macro_nextChar ();
1024 }
1025 else
1026 {
1027 /*** putchar does not work! why? puts to stdio...??! ***/
1028 lmsavechar (c2);
1029 }
1030 }
1031 return c;
1032}
1033
1034/*
1035** keeps semantic comments
1036*/
1037
1038static char macro_nextCharC ()
1039{
1040 static bool in_quote = FALSE, in_escape = FALSE, in_char = FALSE;
1041 char c;
1042
1043 c = char_fromInt (lminput ());
1044
1045 if (!in_quote && !in_char && c == '\\')
1046 {
1047 while ((c = char_fromInt (lminput ())) != '\0' && c != '\n')
1048 {
1049 ; /* skip to newline */
1050 }
1051
1052 context_incLineno ();
1053
1054 if (c != '\0')
1055 {
1056 return macro_nextCharC ();
1057 }
1058 else
1059 {
1060 return c;
1061 }
1062 }
1063 else if (!in_escape && c == '\"')
1064 {
1065 in_quote = !in_quote;
1066 }
1067 else if (!in_escape && c == '\'')
1068 {
1069 in_char = !in_char;
1070 }
1071 else if ((in_quote || in_char) && c == '\\')
1072 {
1073 in_escape = !in_escape;
1074 }
1075 else if ((in_quote || in_char) && in_escape)
1076 {
1077 in_escape = FALSE;
1078 }
1079 else if (!in_quote && c == '/')
1080 {
1081 char c2;
1082
1083 if ((c2 = char_fromInt (lminput ())) == '*')
1084 {
1085 while (c2 != '\0')
1086 {
1087 while ((c2 = char_fromInt (lminput ())) != '\0'
1088 && c2 != '\n' && c2 != '*')
1089 {
1090 ;
1091 }
1092
1093 if (c2 == '*')
1094 {
1095 while ((c2 = char_fromInt (lminput ())) != '\0'
1096 && c2 == '*')
1097 {
1098 ;
1099 }
1100
1101 if (c2 == '/')
1102 {
1103 goto outofcomment;
1104 }
1105 }
1106 else
1107 {
1108 llfatalerror (cstring_makeLiteral ("Macro: bad comment!"));
1109 }
1110 }
1111 outofcomment:
1112 return macro_nextCharC ();
1113 }
1114 else
1115 {
1116 lmsavechar (c2);
1117 }
1118 }
1119 return c;
1120}
1121
1122/*
1123** skips whitespace (handles line continuations)
1124** returns first non-whitespace character
1125*/
1126
1127static char skip_whitespace ()
1128{
1129 char c;
1130
1131 while ((c = macro_nextChar ()) == ' ' || c == '\t')
1132 {
1133 ;
1134 }
1135
1136 return c;
1137}
1138
1139static void handleMacro ()
1140{
1141 cstring mac = cstring_undefined;
1142 int macrocode;
1143 char c;
1144
1145 while (currentColumn () > 2)
1146 {
1147 mac = cstring_appendChar (mac, ' ');
1148 setTokLength (-1);
1149 }
1150
1151 c = macro_nextCharC ();
1152
1153 if (c >= '0' && c <= '9')
1154 {
1155 int i;
1156
1157 for (i = 0; i < ((c - '0') + 1); i++)
1158 {
1159 mac = cstring_appendChar (mac, ' ');
1160 }
1161 }
1162 else
1163 {
1164 BADBRANCH;
1165 }
1166
1167 while (((c = macro_nextCharC ()) != '\0') && (c != '\n'))
1168 {
1169 mac = cstring_appendChar (mac, c);
1170 }
1171
1172
1173 macrocode = tokenMacroCode (mac);
1174
1175 if (macrocode == BADTOK && !isArtificial (mac))
1176 {
1177 context_addMacroCache (mac);
1178 }
1179 else
1180 {
1181 cstring_free (mac);
1182 }
1183
1184 if (c == '\n')
1185 {
1186 context_incLineno ();
1187 }
1188}
1189
1190static bool processMacro (void)
1191{
1192 uentry e2;
1193 ctype ct;
1194 int noparams = 0;
1195 cstring fname = cstring_undefined;
1196 bool res = TRUE;
1197 bool isspecfcn = FALSE;
1198 bool isiter = FALSE;
1199 bool skipparam = FALSE;
1200 bool isenditer = FALSE;
1201 bool unknownm = FALSE;
1202 bool hasParams = FALSE;
1203 bool emptyMacro = FALSE;
1204 char c = skip_whitespace ();
1205 fileloc loc = fileloc_noColumn (g_currentloc);
1206
1207 /* are both of these necessary? what do they mean? */
1208 uentryList specparams = uentryList_undefined;
1209 uentryList pn = uentryList_undefined;
1210
1211 context_resetMacroMissingParams ();
1212
1213 if (c == '\0' || c == '\n')
1214 {
1215 llcontbug (cstring_makeLiteral ("Bad macro"));
1216 fileloc_free (loc);
1217 return FALSE;
1218 }
1219
1220 fname = cstring_appendChar (fname, c);
1221
1222 while ((c = macro_nextChar ()) != '(' && c != '\0'
1223 && c != ' ' && c != '\t' && c != '\n')
1224 {
1225 fname = cstring_appendChar (fname, c);
1226 }
1227
1228 if (c == ' ' || c == '\t' || c == '\n')
1229 {
1230 char oldc = c;
1231
1232 if (c != '\n')
1233 {
1234 while (c == ' ' || c == '\t')
1235 {
1236 c = macro_nextChar ();
1237 }
1238 unput (c);
1239 }
1240
1241 if (c == '\n')
1242 {
1243 emptyMacro = TRUE;
1244 unput (c);
1245 }
1246
1247 c = oldc;
1248 }
1249
1250 hasParams = (c == '(');
1251
1252 if (usymtab_exists (fname))
1253 {
1254 e2 = usymtab_lookupExpose (fname);
1255 ct = uentry_getType (e2);
1256
1257 if (uentry_isCodeDefined (e2)
1258 && fileloc_isUser (uentry_whereDefined (e2)))
1259 {
1260 if (optgenerror
1261 (FLG_MACROREDEF,
1262 message ("Macro %s already defined", fname),
1263 loc))
1264 {
1265 uentry_showWhereDefined (e2);
1266 uentry_clearDefined (e2);
1267 }
1268
1269 if (uentry_isFunction (e2))
1270 {
1271 uentry_setType (e2, ctype_unknown);
1272 ct = ctype_unknown;
1273 unknownm = TRUE;
1274 context_enterUnknownMacro (e2);
1275 }
1276 else
1277 {
1278 context_enterConstantMacro (e2);
1279 }
1280 }
1281 else
1282 {
1283 if (uentry_isForward (e2) && uentry_isFunction (e2))
1284 {
1285 unknownm = TRUE;
1286
1287 voptgenerror
1288 (FLG_MACROFCNDECL,
1289 message
1290 ("Parameterized macro has no prototype or specification: %s ",
1291 fname),
1292 loc);
1293
1294 ct = ctype_unknown;
1295 uentry_setType (e2, ctype_unknown);
1296 uentry_setFunctionDefined (e2, loc);
1297 uentry_setUsed (e2, fileloc_undefined);
1298 context_enterUnknownMacro (e2);
1299 }
1300 else
1301 {
1302 if (uentry_isIter (e2))
1303 {
1304 isiter = TRUE;
1305 specparams = uentry_getParams (e2);
1306 noparams = uentryList_size (specparams);
1307 uentry_setDefined (e2, loc);
1308 context_enterIterDef (e2);
1309 }
1310 else if (uentry_isEndIter (e2))
1311 {
1312 isenditer = TRUE;
1313 uentry_setDefined (e2, loc);
1314 context_enterIterEnd (e2); /* don't care about it now */
1315 /* but should parse like an iter! */
1316 }
1317 else if (uentry_isConstant (e2))
1318 {
1319 if (hasParams)
1320 {
1321 voptgenerror
1322 (FLG_INCONDEFS,
1323 message ("Constant %s implemented as parameterized macro",
1324 fname),
1325 g_currentloc);
1326
1327 uentry_showWhereSpecified (e2);
1328 uentry_setType (e2, ctype_unknown);
1329 uentry_makeConstantFunction (e2);
1330 uentry_setDefined (e2, g_currentloc);
1331 uentry_setFunctionDefined (e2, g_currentloc);
1332 context_enterUnknownMacro (e2);
1333 }
1334 else
1335 {
1336 if (!uentry_isSpecified (e2))
1337 {
1338 fileloc oloc = uentry_whereDeclared (e2);
1339
1340 if (fileloc_isLib (oloc))
1341 {
1342 ;
1343 }
1344 else if (fileloc_isUndefined (oloc)
1345 || fileloc_isPreproc (oloc))
1346 {
1347 if (!emptyMacro)
1348 {
1349 voptgenerror
1350 (FLG_MACROCONSTDECL,
1351 message
1352 ("Macro constant %q not declared",
1353 uentry_getName (e2)),
1354 loc);
1355 }
1356 }
1357 else if (!fileloc_withinLines (oloc, loc, 2))
1358 { /* bogus! will give errors if there is too much whitespace */
1359 voptgenerror
1360 (FLG_SYNTAX,
1361 message
1362 ("Macro constant name %s does not match name in "
1363 "previous constant declaration. This constant "
1364 "is declared at %q", fname,
1365 fileloc_unparse (oloc)),
1366 loc);
1367 }
1368 }
1369
1370 context_enterConstantMacro (e2);
1371 cstring_free (fname);
1372 fileloc_free (loc);
1373 return res;
1374 }
1375
1376 }
1377 else if (ctype_isFunction (ct))
1378 {
1379 isspecfcn = TRUE;
1380 specparams = ctype_argsFunction (ct);
1381 noparams = uentryList_size (specparams);
1382
1383 uentry_setFunctionDefined (e2, loc);
1384 context_enterMacro (e2);
1385 }
1386 else if (uentry_isVar (e2))
1387 {
1388 if (hasParams)
1389 {
1390 voptgenerror
1391 (FLG_INCONDEFS,
1392 message ("Variable %s implemented as parameterized macro",
1393 fname),
1394 loc);
1395
1396 uentry_showWhereSpecified (e2);
1397 uentry_setType (e2, ctype_unknown);
1398 uentry_makeVarFunction (e2);
1399 uentry_setDefined (e2, g_currentloc);
1400 uentry_setFunctionDefined (e2, g_currentloc);
1401 context_enterUnknownMacro (e2);
1402 }
1403 else
1404 {
1405 uentry ucons = uentry_makeConstant (fname,
1406 ctype_unknown,
1407 loc);
1408 if (uentry_isExpandedMacro (e2))
1409 {
1410 ; /* okay */
1411 }
1412 else
1413 {
1414 if (optgenerror
1415 (FLG_INCONDEFS,
1416 message ("Variable %s implemented by a macro",
1417 fname),
1418 loc))
1419 {
1420 uentry_showWhereSpecified (e2);
1421 }
1422 }
1423
1424 uentry_setDefined (e2, loc);
1425 uentry_setUsed (ucons, loc);
1426
1427 context_enterConstantMacro (ucons);
1428 uentry_markOwned (ucons);
1429 cstring_free (fname);
1430 return res;
1431 }
1432 }
1433 else
1434 {
1435 if (uentry_isDatatype (e2))
1436 {
1437 vgenhinterror
1438 (FLG_SYNTAX,
1439 message ("Type implemented as macro: %x",
1440 uentry_getName (e2)),
1441 message ("A type is implemented using a macro definition. A "
1442 "typedef should be used instead."),
1443 g_currentloc);
1444
1445 swallowMacro ();
1446 /* Must exit scope (not sure why a new scope was entered?) */
1447 usymtab_quietExitScope (g_currentloc);
1448 uentry_setDefined (e2, g_currentloc);
1449 res = FALSE;
1450 }
1451 else
1452 {
1453 llcontbug
1454 (message ("Unexpanded macro not function or constant: %q",
1455 uentry_unparse (e2)));
1456 uentry_setType (e2, ctype_unknown);
1457
1458 if (hasParams)
1459 {
1460 uentry_makeVarFunction (e2);
1461 uentry_setDefined (e2, g_currentloc);
1462 uentry_setFunctionDefined (e2, g_currentloc);
1463 context_enterUnknownMacro (e2);
1464 }
1465 }
1466 }
1467 }
1468 }
1469 }
1470 else
1471 {
1472 uentry ce;
1473
1474 /* evans 2001-09-09 - if it has params, assume a function */
1475 if (hasParams)
1476 {
1477 voptgenerror
1478 (FLG_MACROMATCHNAME,
1479 message ("Unexpanded macro %s does not match name of a declared "
1480 "function. The name used in the control "
1481 "comment on the previous line should match.",
1482 fname),
1483 loc);
1484
1485 ce = uentry_makeFunction (fname, ctype_unknown,
1486 typeId_invalid,
1487 globSet_undefined,
1488 sRefSet_undefined,
1489 warnClause_undefined,
1490 fileloc_undefined);
1491 uentry_setUsed (ce, loc); /* perhaps bogus? */
1492 e2 = usymtab_supEntryReturn (ce);
1493 context_enterUnknownMacro (e2);
1494 }
1495 else
1496 {
1497 voptgenerror
1498 (FLG_MACROMATCHNAME,
1499 message ("Unexpanded macro %s does not match name of a constant "
1500 "or iter declaration. The name used in the control "
1501 "comment on the previous line should match. "
1502 "(Assuming macro defines a constant.)",
1503 fname),
1504 loc);
1505
1506 ce = uentry_makeConstant (fname, ctype_unknown, fileloc_undefined);
1507 uentry_setUsed (ce, loc); /* perhaps bogus? */
1508 e2 = usymtab_supEntryReturn (ce);
1509
1510 context_enterConstantMacro (e2);
1511 cstring_free (fname);
1512 fileloc_free (loc);
1513 return res;
1514 }
1515 }
1516
1517 /* in macros, ( must follow immediatetly after name */
1518
1519 if (hasParams)
1520 {
1521 int paramno = 0;
1522
1523 c = skip_whitespace ();
1524
1525 while (c != ')' && c != '\0')
1526 {
1527 uentry param;
1528 bool suppress = context_inSuppressRegion ();
1529 cstring paramname = cstring_undefined;
1530
1531 /*
1532 ** save the parameter location
1533 */
1534
1535 decColumn ();
1536 context_saveLocation ();
1537 incColumn ();
1538
1539 while (c != ' ' && c != '\t' && c != ',' && c != '\0' && c != ')')
1540 {
1541 paramname = cstring_appendChar (paramname, c);
1542 c = macro_nextChar ();
1543 }
1544
1545 if (c == ' ' || c == '\t') c = skip_whitespace ();
1546
1547 if (c == ',')
1548 {
1549 c = macro_nextChar ();
1550 if (c == ' ' || c == '\t') c = skip_whitespace ();
1551 }
1552
1553 if (c == '\0')
1554 {
1555 llfatalerror (cstring_makeLiteral
1556 ("Bad macro syntax: uentryList"));
1557 }
1558
1559 if ((isspecfcn || isiter) && (paramno < noparams)
1560 && !uentry_isElipsisMarker (uentryList_getN
1561 (specparams, paramno)))
1562 {
1563 fileloc sloc = context_getSaveLocation ();
1564 uentry decl = uentryList_getN (specparams, paramno);
1565 sRef sr;
1566
1567 param = uentry_nameCopy (paramname, decl);
1568
1569 uentry_setParam (param);
1570 sr = sRef_makeParam (paramno, uentry_getType (param), stateInfo_makeLoc (sloc));
1571
1572 if (sRef_getNullState (sr) == NS_ABSNULL)
1573 {
1574 ctype pt = ctype_realType (uentry_getType (param));
1575
1576 if (ctype_isUser (pt))
1577 {
1578 uentry te = usymtab_getTypeEntrySafe (ctype_typeId (pt));
1579
1580 if (uentry_isValid (te))
1581 {
1582 sRef_setStateFromUentry (sr, te);
1583 }
1584 }
1585 else
1586 {
1587 sRef_setNullState (sr, NS_UNKNOWN, sloc);
1588 }
1589 }
1590
1591 uentry_setSref (param, sr);
1592 uentry_setDeclaredForceOnly (param, sloc);
1593
1594 skipparam = isiter && uentry_isOut (uentryList_getN (specparams, paramno));
1595 }
1596 else
1597 {
1598 fileloc sloc = context_getSaveLocation ();
1599
1600 param = uentry_makeVariableSrefParam
1601 (paramname, ctype_unknown, fileloc_copy (sloc),
1602 sRef_makeParam (paramno, ctype_unknown, stateInfo_makeLoc (sloc)));
1603 DPRINTF (("Unknown param: %s", uentry_unparseFull (param)));
1604 cstring_free (paramname);
1605
1606 sRef_setPosNull (uentry_getSref (param), sloc);
1607 uentry_setDeclaredForce (param, sloc);
1608
1609 skipparam = FALSE;
1610 fileloc_free (sloc);
1611 }
1612
1613 if (!skipparam)
1614 {
1615 llassert (!uentry_isElipsisMarker (param));
1616
1617 if (!suppress)
1618 {
1619 sRef_makeUnsafe (uentry_getSref (param));
1620 }
1621
1622 pn = uentryList_add (pn, uentry_copy (param));
1623 usymtab_supEntry (param);
1624 }
1625 else
1626 {
1627 /* don't add param */
1628 uentry_free (param);
1629 }
1630
1631 if (c == ',')
1632 {
1633 (void) macro_nextChar ();
1634 c = skip_whitespace ();
1635 }
1636
1637 paramno++;
1638 }
1639
1640 if (c == ')')
1641 {
1642 if (isspecfcn || isiter)
1643 {
1644 if (paramno != noparams && noparams >= 0)
1645 {
1646 advanceLine ();
1647
1648 voptgenerror
1649 (FLG_INCONDEFS,
1650 message ("Macro %s specified with %d args, defined with %d",
1651 fname, noparams, paramno),
1652 g_currentloc);
1653
1654 uentry_showWhereSpecified (e2);
1655 uentry_resetParams (e2, pn);
1656 }
1657 }
1658 else
1659 {
1660 uentry_resetParams (e2, pn);
1661 }
1662 }
1663 }
1664 else
1665 {
1666 /*
1667 ** the form should be:
1668 **
1669 ** # define newname oldname
1670 ** where oldname refers to a function matching the specification
1671 ** of newname.
1672 */
1673
1674 if (unknownm)
1675 {
1676 sRef_setGlobalScope ();
1677 usymtab_supGlobalEntry (uentry_makeVariableLoc (fname, ctype_unknown));
1678 sRef_clearGlobalScope ();
1679 }
1680 else
1681 {
1682 context_setMacroMissingParams ();
1683 }
1684 }
1685
1686
1687 /* context_setuentryList (pn); */
1688 usymtab_enterScope ();
1689
1690 fileloc_free (loc);
1691 cstring_free (fname);
1692
1693 return res;
1694}
1695
1696static bool handleSpecial (char *yyt)
1697{
1698 char *l = mstring_create (MAX_NAME_LENGTH);
ac0860d8 1699 int lineno = 0;
1700 char c;
1701 char *ol;
1702 cstring olc;
1703
1704 strcpy (l, yyt + 1);
1705
1706 /* Need to safe original l for deallocating. */
1707 ol = l;
1708
1709 l += strlen (yyt) - 1;
1710
1711 while ((c = char_fromInt (lminput ())) != '\n' && c != '\0')
1712 {
1713 *l++ = c;
1714 }
1715
1716 *l = '\0';
1717 olc = cstring_fromChars (ol);
1718
1719 if (cstring_equalPrefixLit (olc, "pragma"))
1720 {
1721 char *pname = mstring_create (longUnsigned_fromInt (MAX_PRAGMA_LEN));
1722 char *opname = pname;
1723 char *ptr = ol + 6; /* pragma is six characters, plus space */
1724 int len = 0;
1725
1726
1727 /* skip whitespace */
1728 while (((c = *ptr) != '\0') && isspace (c))
1729 {
1730 ptr++;
1731 }
1732
1733
1734 while (((c = *ptr) != '\0') && !isspace (c))
1735 {
1736 len++;
1737
1738 if (len > MAX_PRAGMA_LEN)
1739 {
1740 break;
1741 }
1742
1743 ptr++;
1744 *pname++ = c;
1745 }
1746
1747 *pname = '\0';
1748
1749 if (len == PRAGMA_LEN_EXPAND
1750 && mstring_equal (opname, PRAGMA_EXPAND))
1751 {
1752 cstring exname = cstring_undefined;
1753 uentry ue;
1754
1755 ptr++;
1756 while (((c = *ptr) != '\0') && !isspace (c))
1757 {
1758 exname = cstring_appendChar (exname, c);
1759 ptr++;
1760 }
1761
1762
1763 ue = usymtab_lookupExposeGlob (exname);
1764
1765 if (uentry_isExpandedMacro (ue))
1766 {
1767 if (fileloc_isPreproc (uentry_whereDefined (ue)))
1768 {
1769 fileloc_setColumn (g_currentloc, 1);
1770 uentry_setDefined (ue, g_currentloc);
1771 }
1772 }
1773
1774 cstring_free (exname);
1775 }
1776 }
1777 else if (cstring_equalPrefixLit (olc, "ident"))
1778 {
1779 /* Some pre-processors will leave these in the code. Ignore rest of line */
1780 }
1781 /*
1782 ** Yuk...Win32 filenames can have spaces in them...we need to read
1783 ** to the matching end quote.
1784 */
1785 else if ((sscanf (ol, "line %d \"", &lineno) == 1)
1786 || (sscanf (ol, " %d \"", &lineno) == 1))
1787 {
1788 char *tmp = ol;
1789 cstring fname;
1790 fileId fid;
1791
1792 /*@access cstring@*/
1793 while (*tmp != '\"' && *tmp != '\0')
1794 {
1795 tmp++;
1796 }
1797
1798 llassert (*tmp == '\"');
1799
1800 tmp++;
1801
1802 fname = tmp;
1803
1804 while (*tmp != '\"' && *tmp != '\0')
1805 {
1806 tmp++;
1807 }
1808
1809 llassert (*tmp == '\"');
1810
1811 *tmp = '\0';
1812
1813# if defined(OS2) || defined(MSDOS) || defined(WIN32)
1814
1815 /*
1816 ** DOS-like path delimiters get delivered in pairs, something like
1817 ** \"..\\\\file.h\", so we have to make it normal again. We do NOT
1818 ** remove the pre dirs yet as we usually specify tmp paths relative
1819 ** to the current directory, so tmp files would not get found in
1820 ** the hash table. If this method fails we try it again later.
1821 */
1822
1823 {
1824 char *stmp = fname;
1825
1826 /*
1827 ** Skip past the drive marker.
1828 */
1829
1830 if (strchr (stmp, ':') != NULL)
1831 {
1832 stmp = strchr (stmp, ':') + 1;
1833 }
1834
1835 while ((stmp = strchr (stmp, CONNECTCHAR)) != NULL )
1836 {
1837 if (*(stmp+1) == CONNECTCHAR)
1838 {
1839 memmove (stmp, stmp+1, strlen (stmp));
1840 }
1841
1842 stmp++;
1843 }
1844
1845 fid = fileTable_lookupBase (context_fileTable (), fname);
1846 if (!(fileId_isValid (fid)))
1847 {
1848 fname = removePreDirs (fname);
1849 fid = fileTable_lookupBase (context_fileTable (), fname);
1850 }
1851 }
1852# else /* !defined(OS2) && !defined(MSDOS) */
1853 fname = removePreDirs (fname);
1854 fid = fileTable_lookupBase (context_fileTable (), fname);
1855# endif /* !defined(OS2) && !defined(MSDOS) */
1856
1857 if (!(fileId_isValid (fid)))
1858 {
1859 if (context_inXHFile ())
1860 {
1861 fid = fileTable_addXHFile (context_fileTable (), fname);
1862 }
1863 else if (isHeaderFile (fname))
1864 {
1865 fid = fileTable_addHeaderFile (context_fileTable (), fname);
1866 }
1867 else
1868 {
1869 fid = fileTable_addFile (context_fileTable (), fname);
1870 }
1871 }
1872
1873 setFileLine (fid, lineno);
1874 /*@noaccess cstring@*/
1875 }
1876 else if ((sscanf (ol, "line %d", &lineno) == 1)
1877 || (sscanf (ol, " %d", &lineno) == 1))
1878 {
1879 setLine (lineno); /* next line is <cr> */
1880 }
1881 else
1882 {
1883 if (mstring_equal (ol, "")) {
1884 DPRINTF (("Empty pp command!"));
1885 /*
1886 ** evs 2000-05-16: This is a horrible kludge, to get around a bug (well, difficulty) in the pre-processor.
1887 ** We handle a plain # in the input file, by echoing it, and ignoring it in the post-pp-file.
1888 */
1889 mstring_free (ol);
1890 return FALSE;
1891 } else {
4c9767b3 1892 voptgenerror
1893 (FLG_UNRECOGDIRECTIVE,
1894 message ("Unrecognized pre-processor directive: #%s",
1895 cstring_fromChars (ol)),
1896 g_currentloc);
ac0860d8 1897 }
1898
1899 sfree (ol);
4c9767b3 1900 return FALSE; /* evans 2001-12-30: was: TRUE; */
ac0860d8 1901 }
1902
1903 sfree (ol);
1904 return FALSE;
1905}
1906
1907static int handleLlSpecial ()
1908{
1909 bool hasnl = FALSE;
1910 int ic;
1911 char c;
1912 char *s = mstring_createEmpty ();
1913 char *os;
1914 int tok;
1915 int charsread = 0;
1916 fileloc loc;
1917
1918 loc = fileloc_copy (g_currentloc);
1919 DPRINTF (("Handle special: %s", fileloc_unparse (loc)));
1920
1921 while (((ic = ninput ()) != 0) && isalpha (ic))
1922 {
1923 c = (char) ic;
1924 s = mstring_append (s, c);
1925 charsread++;
1926 }
1927
1928 DPRINTF (("Read: %s / %s", s, fileloc_unparse (g_currentloc)));
1929 os = s;
1930
1931 if (charsread == 0 && ic == (int) AFTER_COMMENT_MARKER[0])
1932 {
1933 ic = ninput ();
1934
1935 llassert (ic == AFTER_COMMENT_MARKER[1]);
1936
1937 if (*s == '\0')
1938 {
1939 sfree (os);
1940 fileloc_free (loc);
1941 return QNOMODS; /* special token no modifications token */
1942 }
1943 }
1944
1945 DPRINTF (("Coment marker: %s", os));
1946 tok = commentMarkerToken (cstring_fromChars (os));
1947
1948 if (tok != BADTOK)
1949 {
1950 tokLength = charsread;
1951 sfree (os);
1952 inSpecPart = TRUE;
1953 fileloc_free (loc);
1954 return tok;
1955 }
1956
1957 DPRINTF (("Not a comment marker..."));
1958 /* Add rest of the comment */
1959
1960 if (ic != 0 && ic != EOF)
1961 {
1962 c = (char) ic;
1963
1964 s = mstring_append (s, c);
1965 charsread++;
1966
1967 while (((ic = ninput ()) != 0) && (ic != EOF)
1968 && (ic != AFTER_COMMENT_MARKER[0]))
1969 {
1970 c = (char) ic;
1971
1972 /* evans 2001-09-01 added to prevent assertion failures for uncloses syntactic comments */
1973
1974 if (c == '\n') {
1975 hasnl = TRUE; /* This prevents tokLength from being set later. */
1976 tokLength = 0;
1977
1978 voptgenerror
1979 (FLG_SYNTAX,
1980 message ("Likely parse error: syntactic comment token spans multiple lines: %s",
1981 cstring_fromChars (s)),
1982 g_currentloc);
1983 }
1984
1985 s = mstring_append (s, c);
1986 charsread++;
1987 }
1988 }
1989
1990 DPRINTF (("Read: %s / %s", s, fileloc_unparse (g_currentloc)));
1991
1992 if (ic == AFTER_COMMENT_MARKER[0])
1993 {
1994 int nc = ninput ();
1995 llassert ((char) nc == AFTER_COMMENT_MARKER[1]);
1996 charsread++;
1997 }
1998
1999 os = s;
2000
2001 while (*s == ' ' || *s == '\t' || *s == '\n')
2002 {
2003 s++;
2004 }
2005
2006 if (*s == '-' || *s == '+' || *s == '=') /* setting flags */
2007 {
2008 c = *s;
2009
2010 while (c == '-' || c == '+' || c == '=')
2011 {
2012 ynm set = ynm_fromCodeChar (c);
2013 cstring thisflag;
2014
2015 s++;
2016
2017 thisflag = cstring_fromChars (s);
2018
2019 while ((c = *s) != '\0' && (c != '-') && (c != '=')
2020 && (c != '+') && (c != ' ') && (c != '\t') && (c != '\n'))
2021 {
2022 s++;
2023 }
2024
2025 *s = '\0';
2026
2027 if (!context_getFlag (FLG_NOCOMMENTS))
2028 {
2029 cstring flagname = thisflag;
2030 flagcode fflag = identifyFlag (flagname);
77d37419 2031
ac0860d8 2032 if (flagcode_isSkip (fflag))
2033 {
2034 ;
2035 }
2036 else if (flagcode_isInvalid (fflag))
2037 {
2038 if (isMode (flagname))
2039 {
2040 if (ynm_isMaybe (set))
2041 {
2042 llerror
2043 (FLG_BADFLAG,
2044 message
2045 ("Semantic comment attempts to restore flag %s. "
2046 "A mode flag cannot be restored.",
2047 flagname));
2048 }
2049 else
2050 {
2051 context_setMode (flagname);
2052 }
2053 }
2054 else
2055 {
2056 voptgenerror
2057 (FLG_UNRECOGFLAGCOMMENTS,
2058 message ("Unrecognized option in semantic comment: %s",
2059 flagname),
2060 g_currentloc);
2061 }
2062 }
2063 else if (flagcode_isGlobalFlag (fflag))
2064 {
2065 voptgenerror
2066 (FLG_BADFLAG,
2067 message
2068 ("Semantic comment attempts to set global flag %s. "
2069 "A global flag cannot be set locally.",
2070 flagname),
2071 g_currentloc);
2072 }
2073 else
2074 {
2075 context_fileSetFlag (fflag, set);
2076
2077 if (flagcode_hasArgument (fflag))
2078 {
2079 if (ynm_isMaybe (set))
2080 {
2081 voptgenerror
2082 (FLG_BADFLAG,
2083 message
2084 ("Semantic comment attempts to restore flag %s. "
2085 "A flag for setting a value cannot be restored.",
2086 flagname),
2087 g_currentloc);
2088 }
2089 else
2090 { /* cut-and-pastied from llmain...blecch */
2091 cstring extra = cstring_undefined;
2092 char *rest;
2093 char *orest;
2094 char rchar;
2095
2096 *s = c;
2097 rest = mstring_copy (s);
2098 orest = rest;
2099 *s = '\0';
2100
2101 while ((rchar = *rest) != '\0'
2102 && (isspace (rchar)))
2103 {
2104 rest++;
2105 s++;
2106 }
2107
2108 while ((rchar = *rest) != '\0'
2109 && !isspace (rchar))
2110 {
2111 extra = cstring_appendChar (extra, rchar);
2112 rest++;
2113 s++;
2114 }
2115
2116 sfree (orest);
2117
2118 if (cstring_isUndefined (extra))
2119 {
2120 llerror
2121 (FLG_BADFLAG,
2122 message
2123 ("Flag %s (in semantic comment) must be followed by an argument",
2124 flagcode_unparse (fflag)));
2125 }
2126 else
2127 {
2128 s--;
2129
2130 if (flagcode_hasValue (fflag))
2131 {
2132 setValueFlag (fflag, extra);
2133 }
2134 else if (flagcode_hasString (fflag))
2135 {
2136 setStringFlag (fflag, extra);
2137 }
2138 else
2139 {
2140 BADEXIT;
2141 }
2142 }
2143 }
2144 }
2145 }
2146 }
2147 else
2148 {
2149 ;
2150 }
2151
2152 *s = c;
2153 while ((c == ' ') || (c == '\t') || (c == '\n'))
2154 {
2155 c = *(++s);
2156 }
2157 }
2158
2159 if (context_inHeader () && !isArtificial (cstring_fromChars (os)))
2160 {
2161 DPRINTF (("Here adding comment: %s", os));
2162 context_addComment (cstring_fromCharsNew (os));
2163 }
2164 else
2165 {
2166 ;
2167 }
2168 }
2169 else
2170 {
2171 char *t = s;
2172 int macrocode;
2173 char tchar = '\0';
2174 annotationInfo ainfo;
2175
2176 while (*s != '\0' && *s != ' ' && *s != '\t' && *s != '\n')
2177 {
2178 s++;
2179 }
2180
2181 if (*s != '\0')
2182 {
2183 tchar = *s;
2184 *s = '\0';
2185 s++;
2186 }
2187
2188 t = cstring_toCharsSafe (cstring_downcase (cstring_fromChars (t)));
2189 macrocode = tokenMacroCode (cstring_fromChars (t));
2190
2191 if (macrocode != BADTOK)
2192 {
2193 tokLength = hasnl ? 0 : mstring_length (t);
2194
2195 sfree (t);
2196 sfree (os);
2197 fileloc_free (loc);
2198
2199 if (macrocode == SKIPTOK)
2200 {
2201 return BADTOK;
2202 }
2203
2204 return macrocode;
2205 }
2206
2207 ainfo = context_lookupAnnotation (cstring_fromChars (os));
2208
2209 if (annotationInfo_isDefined (ainfo)) {
2210 DPRINTF (("Found annotation: %s", annotationInfo_unparse (ainfo)));
2211 /*@i324@*/ yylval.annotation = ainfo;
2212 tokLength = 0;
2213 sfree (os);
2214 sfree (t);
2215 fileloc_free (loc);
2216 return CANNOTATION;
2217 }
2218
2219 if (context_inHeader ())
2220 {
2221 if (tchar != '\0')
2222 {
2223 *(s-1) = tchar;
2224 }
2225
2226 if ((context_inMacro () || context_inGlobalContext ())
2227 && macrocode != SKIPTOK
2228 && !isArtificial (cstring_fromChars (os)))
2229 {
2230 DPRINTF (("Add comment: %s", os));
2231 context_addComment (cstring_fromCharsNew (os));
2232 }
2233 else
2234 {
2235 ;
2236 }
2237
2238 if (tchar != '\0')
2239 {
2240 *(s-1) = '\0';
2241 }
2242 }
2243
2244 if (mstring_equal (t, "ignore"))
2245 {
2246 if (!context_getFlag (FLG_NOCOMMENTS))
2247 {
2248 context_enterSuppressRegion ();
2249 }
2250 }
2251 else if ((*t == 'i' || *t == 't')
2252 && (*(t + 1) == '\0'))
2253 {
2254 if (!context_getFlag (FLG_NOCOMMENTS)
2255 && (*t == 'i' || context_getFlag (FLG_TMPCOMMENTS)))
2256 {
2257 context_enterSuppressLine (-1); /* infinite suppression */
2258 }
2259 }
2260 else if (((*t == 'i') || (*t == 't'))
2261 && ((*(t + 1) >= '0' && *(t + 1) <= '9')))
2262 {
2263 bool tmpcomment = (*t == 't');
2264 int val = -1;
2265 char *tt = t; /* don't mangle t, since it is free'd */
2266 char lc = *(++tt);
2267
2268 if (lc >= '0' && lc <= '9')
2269 {
2270 val = (int)(lc - '0');
2271
2272 lc = *(++tt);
2273 while (lc >= '0' && lc <= '9')
2274 {
2275 val *= 10;
2276 val += lc - '0';
2277 lc = *(++tt);
2278 }
2279 }
2280
2281
2282 if (!context_getFlag (FLG_NOCOMMENTS)
2283 && (!tmpcomment || context_getFlag (FLG_TMPCOMMENTS)))
2284 {
2285 context_enterSuppressLine (val);
2286 }
2287 }
2288 else if (mstring_equal (t, "end"))
2289 {
2290 if (!context_getFlag (FLG_NOCOMMENTS))
2291 {
2292 context_exitSuppressRegion ();
2293 }
2294 }
2295 else if (mstring_equal (t, "notfunction"))
2296 {
2297 ; /* handled by pcpp */
2298 }
2299 else if (mstring_equal (t, "access"))
2300 {
2301 cstring tname;
2302
2303 while (TRUE)
2304 {
2305 while ((c = *s) && (c == ' ' || c == '\t' || c == '\n'))
2306 {
2307 s++;
2308 }
2309
2310 if (c == '\0')
2311 {
2312 break;
2313 }
2314
2315 tname = cstring_fromChars (s);
2316
2317 while ((c = *s) != '\0' && c != ' '
2318 && c != '\t' && c != '\n' && c != ',')
2319 {
2320 s++;
2321 }
2322
2323 *s = '\0';
2324
2325 DPRINTF (("Access %s", tname));
2326
2327 if (!context_getFlag (FLG_NOCOMMENTS)
2328 && !context_getFlag (FLG_NOACCESS))
2329 {
2330 if (usymtab_existsType (tname))
2331 {
2332 typeId uid = usymtab_getTypeId (tname);
2333 uentry ue = usymtab_getTypeEntry (uid);
2334
2335 if (uentry_isAbstractDatatype (ue))
2336 {
2337 context_addFileAccessType (uid);
2338 DPRINTF (("Adding access to: %s / %d", tname, uid));
2339 }
2340 else
2341 {
2342 voptgenerror
2343 (FLG_COMMENTERROR,
2344 message
2345 ("Non-abstract type %s used in access comment",
2346 tname),
2347 g_currentloc);
2348 }
2349 }
2350 else
2351 {
2352 if (!(context_inSuppressRegion ()
2353 || context_inSuppressZone (g_currentloc)))
2354 {
2355 voptgenerror
2356 (FLG_COMMENTERROR,
2357 message
2358 ("Unrecognized type %s used in access comment",
2359 tname),
2360 g_currentloc);
2361 }
2362 }
2363 }
2364
2365 if (c != '\0')
2366 {
2367 s++;
2368 }
2369
2370 if (c != ',' && c != ' ')
2371 {
2372 break;
2373 }
2374 }
2375 }
2376 else if (mstring_equal (t, "noaccess"))
2377 {
2378 cstring tname;
2379 char lc;
2380
2381 while (TRUE)
2382 {
2383 while ((lc = *s) && (lc == ' ' || lc == '\t' || lc == '\n'))
2384 {
2385 s++;
2386 }
2387
2388 if (lc == '\0')
2389 {
2390 break;
2391 }
2392
2393 tname = cstring_fromChars (s);
2394
2395 while ((lc = *s) != '\0' && lc != ' ' && lc != '\t'
2396 && lc != '\n' && lc != ',')
2397 {
2398 s++;
2399 }
2400
2401 *s = '\0';
2402
2403 if (!context_getFlag (FLG_NOCOMMENTS)
2404 && !context_getFlag (FLG_NOACCESS))
2405 {
2406 if (usymtab_existsType (tname))
2407 {
2408 typeId tuid = usymtab_getTypeId (tname);
2409
2410 if (context_couldHaveAccess (tuid))
2411 {
2412 DPRINTF (("Removing access: %s", tname));
2413 context_removeFileAccessType (tuid);
2414 }
2415 else
2416 {
2417 if (!(context_inSuppressRegion ()
2418 || context_inSuppressZone (g_currentloc)))
2419 {
2420 uentry ue = usymtab_getTypeEntry (tuid);
2421
2422 if (uentry_isAbstractDatatype (ue))
2423 {
2424 voptgenerror
2425 (FLG_COMMENTERROR,
2426 message
2427 ("Non-accessible abstract type %s used in noaccess comment",
2428 tname),
2429 g_currentloc);
2430 }
2431 else
2432 {
2433 voptgenerror
2434 (FLG_COMMENTERROR,
2435 message
2436 ("Non-abstract type %s used in noaccess comment",
2437 tname),
2438 g_currentloc);
2439 }
2440 }
2441 }
2442 }
2443 else
2444 {
2445 if (!(context_inSuppressRegion ()
2446 || context_inSuppressZone (g_currentloc)))
2447 {
2448 voptgenerror
2449 (FLG_COMMENTERROR,
2450 message
2451 ("Unrecognized type %s used in noaccess comment",
2452 tname),
2453 g_currentloc);
2454 }
2455 }
2456 }
2457
2458 if (lc != '\0')
2459 {
2460 s++;
2461 }
2462
2463 if (lc != ',' && lc != ' ')
2464 {
2465 break;
2466 }
2467 }
2468 }
2469 else
2470 {
2471 voptgenerror (FLG_UNRECOGCOMMENTS,
2472 message ("Semantic comment unrecognized: %s",
2473 cstring_fromChars (os)), loc);
2474 }
2475
2476 sfree (t);
2477 }
2478
2479 sfree (os);
2480 fileloc_free (loc);
2481 return BADTOK;
2482}
2483
2484static /*@only@*/ cstring makeIdentifier (char *s)
2485{
2486 char *c = mstring_create (size_toInt (strlen (s)) + 1);
2487 cstring id = cstring_fromChars (c);
2488
2489 while (isalnum (*s) || (*s == '_') || (*s == '$'))
2490 {
2491 *c++ = *s++;
2492 }
2493
2494 *c = '\0';
2495 return (id);
2496}
2497
2498/*@observer@*/ /*@dependent@*/ uentry coerceId (cstring cn)
2499{
2500 if (!(usymtab_exists (cn)))
2501 {
2502 fileloc loc = fileloc_createExternal ();
2503
2504 /*
2505 ** We need to put this in a global scope, otherwise the sRef will be deallocated.
2506 */
2507
2508 uentry ce = uentry_makeUnrecognized (cn, loc);
2509
2510 if (!context_inIterEnd ())
2511 {
2512 voptgenerror
2513 (FLG_SYSTEMUNRECOG,
2514 message ("Unrecognized (possibly system) identifier: %q",
2515 uentry_getName (ce)),
2516 g_currentloc);
2517 }
2518
2519 return ce;
2520 }
2521
2522 return (usymtab_lookup (cn));
2523}
2524
2525/*
2526** like, coerceId, but doesn't supercede for iters
2527*/
2528
2529/*@observer@*/ uentry coerceIterId (cstring cn)
2530{
2531 if (!(usymtab_exists (cn)))
2532 {
2533 return uentry_undefined;
2534 }
2535
2536 return (usymtab_lookup (cn));
2537}
2538
2539/*@observer@*/ cstring LastIdentifier ()
2540{
2541 return (lastidprocessed);
2542}
2543
2544static int processIdentifier (cstring id)
2545{
2546 uentry le;
2547
2548 if (context_getFlag (FLG_GRAMMAR))
2549 {
2550 lldiagmsg (message ("Process identifier: %s", id));
2551 }
2552
2553 context_clearJustPopped ();
2554 lastidprocessed = id;
2555
2556 if (context_inFunctionHeader ())
2557 {
2558 int tok = commentMarkerToken (id);
2559 DPRINTF (("in function decl..."));
2560
2561 if (tok != BADTOK)
2562 {
2563 return tok;
2564 }
2565 else
2566 {
2567 tok = tokenMacroCode (id);
2568
2569 if (tok != BADTOK)
2570 {
2571 return tok;
2572 }
2573 else
2574 {
2575 annotationInfo ainfo;
2576
2577 if (expectingMetaStateName)
2578 {
2579 metaStateInfo msinfo = context_lookupMetaStateInfo (id);
2580
2581 if (metaStateInfo_isDefined (msinfo))
2582 {
2583 yylval.msinfo = msinfo;
2584 return METASTATE_NAME;
2585 }
2586 else
2587 {
2588 DPRINTF (("Not meta state name: %s", cstring_toCharsSafe (id)));
2589 }
2590 }
2591
2592 ainfo = context_lookupAnnotation (id);
2593
2594 if (annotationInfo_isDefined (ainfo))
2595 {
2596 DPRINTF (("Found annotation: %s", annotationInfo_unparse (ainfo)));
2597 /*@i324@*/ yylval.annotation = ainfo;
2598 return CANNOTATION;
2599 }
2600 else
2601 {
2602 DPRINTF (("Not annotation: %s", id));
2603 }
2604 }
2605 }
2606 }
2607
2608 /* Consider handling: Defined by C99 as static const char __func__[] */
2609
2610 if (context_getFlag (FLG_GNUEXTENSIONS))
2611 {
2612 int tok = BADTOK;
2613
2614 if (cstring_equalLit (id, "__stdcall")
2615 || cstring_equalLit (id, "__cdecl")
2616 || cstring_equalLit (id, "__extension__"))
2617 {
2618 return BADTOK;
2619 }
2620 else if (cstring_equalLit (id, "__volatile__"))
2621 {
2622 tok = QVOLATILE;
2623 }
2624 else if (cstring_equalLit (id, "__signed"))
2625 {
2626 tok = QSIGNED;
2627 }
2628 else if (cstring_equalLit (id, "__unsigned"))
2629 {
2630 tok = QUNSIGNED;
2631 }
2632 else if (cstring_equalLit (id, "__const__"))
2633 {
2634 tok = QCONST;
2635 }
2636 else if (cstring_equalLit (id, "__alignof__"))
2637 {
2638 tok = CALIGNOF; /* alignof is parsed like sizeof */
2639 }
2640 else if (cstring_equalLit (id, "__FUNCTION__")
2641 || cstring_equalLit (id, "__PRETTY_FUNCTION__"))
2642 {
2643 /* These tokens hold the name of the current function as strings */
5c2f3045 2644 /* evans 2001-12-30: changed from exprNode_stringLiteral; bug reported by Jim Zelenka. */
2645 yylval.expr = exprNode_makeConstantString (id, fileloc_copy (g_currentloc));
ac0860d8 2646 tokLength = 0;
2647 lastWasString = TRUE;
2648 tok = CCONSTANT;
2649 return tok;
2650 }
2651 else if (cstring_equalLit (id, "__attribute__")
2652 || cstring_equalLit (id, "__asm__")
2653 || cstring_equalLit (id, "_asm")
2654 || cstring_equalLit (id, "__asm")
2655 || cstring_equalLit (id, "__declspec"))
2656 {
2657 int depth = 0;
2658 bool useparens = FALSE;
2659 bool usebraces = FALSE;
2660 bool inquote = FALSE;
2661 bool inescape = FALSE;
2662 int ic;
2663
2664 while ((ic = input ()) != EOF)
2665 {
2666
2667 if (inescape)
2668 {
2669 inescape = FALSE;
2670 }
2671 else if (ic == '\\')
2672 {
2673 inescape = TRUE;
2674 }
2675 else if (ic == '\"')
2676 {
2677 inquote = !inquote;
2678 }
2679 else if (!inquote)
2680 {
2681 if (ic == '(')
2682 {
2683 if (!useparens)
2684 {
2685 if (!usebraces)
2686 {
2687 useparens = TRUE;
2688 }
2689 }
2690
2691 if (useparens)
2692 {
2693 depth++;
2694 }
2695 }
2696 else if (ic == '{')
2697 {
2698 if (!usebraces)
2699 {
2700 if (!useparens)
2701 {
2702 usebraces = TRUE;
2703 }
2704 }
2705
2706 if (usebraces)
2707 {
2708 depth++;
2709 }
2710 }
2711 else if (ic == ')' && useparens)
2712 {
2713 depth--;
2714 if (depth == 0) break;
2715 }
2716 else if (ic == '}' && usebraces)
2717 {
2718 depth--;
2719 if (depth == 0) break;
2720 }
2721 else if (ic == '}'
2722 && !usebraces && !useparens
2723 && cstring_equalLit (id, "__asm"))
2724 {
2725 /*
2726 ** We need this because some MS VC++ include files
2727 ** have __asm mov ... }
2728 ** Its a kludge, but otherwise would need to parse
2729 ** the asm code!
2730 */
2731 return TRBRACE;
2732 }
2733 }
2734
2735 if (ic == '\n')
2736 {
2737 context_incLineno ();
2738
2739 if (cstring_equalLit (id, "__asm")
2740 && !useparens && !usebraces)
2741 {
2742 break;
2743 }
2744 }
2745 }
2746
2747 llassert ((useparens && ic == ')')
2748 || (usebraces && ic == '}')
2749 || (!useparens && !usebraces));
2750
2751 return BADTOK;
2752 }
2753 else if (cstring_equalLit (id, "inline")
2754 || cstring_equalLit (id, "__inline")
2755 || cstring_equalLit (id, "_inline")
2756 || cstring_equalLit (id, "__inline__"))
2757 {
2758 tok = QINLINE;
2759 }
2760
2761 if (tok != BADTOK)
2762 {
2763 RETURN_TOK (tok);
2764 }
2765 }
2766
2767 le = usymtab_lookupSafe (id);
2768
2769 /*@-dependenttrans@*/
2770
2771 if (uentry_isIter (le))
2772 {
2773 /*@i32@*/ yylval.entry = le;
2774 return (ITER_NAME);
2775 }
2776 else if (uentry_isEndIter (le))
2777 {
2778 /*@i32@*/ yylval.entry = le;
2779 return (ITER_ENDNAME);
2780 }
2781 else if (uentry_isUndefined (le))
2782 {
2783 yylval.cname = id;
2784
2785 /* avoid parse errors for certain system built ins */
2786
2787 if (g_expectingTypeName && (cstring_firstChar (id) == '_')
2788 && (cstring_secondChar (id) == '_'))
2789 {
2790 return (TYPE_NAME_OR_ID);
2791 }
2792
2793 return (NEW_IDENTIFIER);
2794 }
2795 else if (!uentry_isDeclared (le) && !uentry_isCodeDefined (le))
2796 {
2797 if (uentry_isDatatype (le))
2798 {
2799 yylval.cname = id;
2800 return (NEW_IDENTIFIER);
2801 }
2802 else
2803 {
2804 /*@i32@*/ yylval.entry = le;
2805 return (IDENTIFIER);
2806 }
2807 }
2808 else if (uentry_isDatatype (le))
2809 {
2810 if (!g_expectingTypeName)
2811 {
2812 yylval.cname = id;
2813
2814 return (NEW_IDENTIFIER);
2815 }
2816 else
2817 {
2818 yylval.ctyp = uentry_getAbstractType (le);
2819
2820 uentry_setUsed (le, g_currentloc);
2821 return (TYPE_NAME);
2822 }
2823 }
2824 else
2825 {
2826 /*@i32@*/ yylval.entry = le;
2827 return (IDENTIFIER);
2828 }
2829
2830 /*@=dependenttrans@*/
2831}
2832
2833static bool processHashIdentifier (/*@only@*/ cstring id)
2834{
2835 if (context_inMacro () || context_inIterDef () ||
2836 context_inIterEnd ())
2837 {
2838 uentry le;
2839
2840 context_clearJustPopped ();
2841
2842 lastidprocessed = id;
2843 le = usymtab_lookupSafe (id);
2844
2845 if (uentry_isParam (le) || uentry_isRefParam (le))
2846 {
2847 return TRUE;
2848 }
2849 else
2850 {
2851 return FALSE;
2852 }
2853 }
2854 else
2855 {
4c9767b3 2856 /*
2857 ** Will be handled by handleLlSpecial
2858 */
2859
ac0860d8 2860 cstring_free (id);
2861 return FALSE;
2862 }
2863}
2864
2865
2866static /*@only@*/ exprNode processString ()
2867{
2868 exprNode res;
2869 fileloc loc;
2870 char *nl = strchr (yytext, '\n');
2871 cstring ns = cstring_fromCharsNew (yytext);
2872
2873 if (nl == NULL)
2874 {
2875 loc = fileloc_copy (g_currentloc);
2876 addColumn (cstring_length (ns));
2877 }
2878 else
2879 {
2880 char *lastnl = nl;
2881
2882 loc = fileloc_copy (g_currentloc);
2883
2884 context_incLineno ();
2885
2886 while ((nl = strchr ((nl + 1), '\n')) != NULL)
2887 {
2888 context_incLineno ();
2889 lastnl = nl;
2890 }
2891 }
2892
2893
2894 res = exprNode_stringLiteral (ns, loc);
2895 return (res);
2896}
2897
e0b363ad 2898/*
2899** process a wide character string L"...."
2900*/
2901
2902static /*@only@*/ exprNode processWideString ()
2903{
2904 exprNode res;
2905 fileloc loc;
2906 char *nl = strchr (yytext, '\n');
2907 cstring ns;
2908
2909 llassert (*yytext == 'L');
2910 yytext++;
2911
2912 ns = cstring_fromCharsNew (yytext);
2913
2914 if (nl == NULL)
2915 {
2916 loc = fileloc_copy (g_currentloc);
2917 addColumn (cstring_length (ns));
2918 }
2919 else
2920 {
2921 char *lastnl = nl;
2922
2923 loc = fileloc_copy (g_currentloc);
2924
2925 context_incLineno ();
2926
2927 while ((nl = strchr ((nl + 1), '\n')) != NULL)
2928 {
2929 context_incLineno ();
2930 lastnl = nl;
2931 }
2932 }
2933
2934 res = exprNode_wideStringLiteral (ns, loc);
2935 return (res);
2936}
2937
ac0860d8 2938static
2939char processChar ()
2940{
2941 char fchar;
2942 char next;
2943
2944 llassert (*yytext != '\0');
2945 fchar = *(yytext + 1);
2946 if (fchar != '\\') return fchar;
2947
2948 next = *(yytext + 2);
2949
2950 switch (next)
2951 {
2952 case 'n': return '\n';
2953 case 't': return '\t';
2954 case '\"': return '\"';
2955 case '\'': return '\'';
2956 case '\\': return '\\';
2957 default: return '\0';
2958 }
2959}
2960
2961static
2962double processFloat ()
2963{
2964 double ret = atof (yytext);
2965
2966 return (ret);
2967}
2968
2969static
2970long processHex ()
2971{
2972 int index = 2;
2973 long val = 0;
2974
2975 llassert (yytext[0] == '0'
2976 && (yytext[1] == 'X' || yytext[1] == 'x'));
2977
2978 while (yytext[index] != '\0') {
2979 int tval;
2980 char c = yytext[index];
2981
2982 if (c >= '0' && c <= '9') {
2983 tval = (int) c - (int) '0';
2984 } else if (c >= 'A' && c <= 'F') {
2985 tval = (int) c - (int) 'A' + 10;
2986 } else if (c >= 'a' && c <= 'f') {
2987 tval = (int) c - (int) 'a' + 10;
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 hex constant: %s",
2997 c, cstring_fromChars (yytext)),
2998 g_currentloc);
2999 }
3000 index++;
3001 }
3002
3003 break;
3004 } else {
3005 voptgenerror
3006 (FLG_SYNTAX,
3007 message ("Invalid character (%c) in hex constant: %s",
3008 c, cstring_fromChars (yytext)),
3009 g_currentloc);
3010 break;
3011 }
3012
3013 val = (val * 16) + tval;
3014 index++;
3015 }
3016
3017 DPRINTF (("Hex constant: %s = %ld", yytext, val));
3018 return val;
3019}
3020
3021static
3022long processOctal ()
3023{
3024 int index = 1;
3025 long val = 0;
3026
3027 llassert (yytext[0] == '0' && yytext[1] != 'X' && yytext[1] != 'x');
3028
3029 while (yytext[index] != '\0') {
3030 int tval;
3031 char c = yytext[index];
3032
3033 if (c >= '0' && c <= '7') {
3034 tval = (int) c - (int) '0';
ee229125 3035 } else if (c == 'U' || c == 'L' || c == 'u' || c == 'l') {
3036 index++;
3037 while (yytext[index] != '\0') {
3038 if (c == 'U' || c == 'L' || c == 'u' || c == 'l') {
3039 ;
3040 } else {
3041 voptgenerror
3042 (FLG_SYNTAX,
3043 message ("Invalid character (%c) following specifier in octal constant: %s",
3044 c, cstring_fromChars (yytext)),
3045 g_currentloc);
3046 }
3047 index++;
3048 }
3049
3050 break;
ac0860d8 3051 } else {
3052 voptgenerror
3053 (FLG_SYNTAX,
3054 message ("Invalid character (%c) in octal constant: %s",
3055 c, cstring_fromChars (yytext)),
3056 g_currentloc);
3057 break;
3058 }
3059
3060 val = (val * 8) + tval;
3061 index++;
3062 }
3063
3064 DPRINTF (("Octal constant: %s = %ld", yytext, val));
3065 return val;
3066}
3067
3068static
3069long processDec ()
3070{
3071 return (atol (yytext));
3072}
3073
3074static int
3075processSpec (int tok)
3076{
3077 size_t length = strlen (yytext);
3078
3079 if (inSpecPart)
3080 {
3081 setTokLengthT (length);
3082 RETURN_TOK (tok);
3083 }
3084 else
3085 {
3086
3087 context_saveLocation ();
3088 setTokLengthT (length);
3089 return (processIdentifier (makeIdentifier (yytext)));
3090 }
3091}
3092
3093void cscanner_expectingMetaStateName ()
3094{
3095 llassert (!expectingMetaStateName);
3096 llassert (context_inFunctionHeader ());
3097 expectingMetaStateName = TRUE;
3098}
3099
3100void cscanner_clearExpectingMetaStateName ()
3101{
3102 llassert (expectingMetaStateName);
3103 expectingMetaStateName = FALSE;
3104}
git-cvsimport mirror of splint
This page took 0.484757 seconds and 5 git commands to generate.