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Fixed problem with unnamed unions within struct definitions.
[splint.git] / src / cgrammar.y
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885824d3 1/*;-*-C-*-;
11db3170 2** Splint - annotation-assisted static program checker
1b8ae690 3** Copyright (C) 1994-2002 University of Virginia,
11db3170 4** Massachusetts Institute of Technology
5**
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.
19**
155af98d 20** For information on splint: info@splint.org
21** To report a bug: splint-bug@splint.org
11db3170 22** For more information: http://www.splint.org
885824d3 23*/
24%{
25/*
26**
27** cgrammar.y
28**
1b8ae690 29** Yacc/Bison grammar for extended ANSI C used by Splint.
885824d3 30**
31** original grammar by Nate Osgood ---
32** hacrat@catfish.lcs.mit.edu Mon Jun 14 13:06:32 1993
33**
1b8ae690 34** changes for Splint --- handle typedef names correctly
885824d3 35** fix struct/union parsing bug (empty struct is accepted)
36** add productions to handle macros --- require
37** error correction --- main source of conflicts in grammar.
38** need to process initializations sequentially, L->R
39**
40** production names are cryptic, so more productions fit on one line
41**
42** conflicts: 87 shift/reduce, 18 reduce/reduce
43** most of these are due to handling macros
44** a few are due to handling type expressions
45*/
46
47/*@=allmacros@*/
48
49extern int yylex ();
50extern void swallowMacro (void);
b37cf05e 51extern void yyerror (char *);
885824d3 52
1b8ae690 53# include "splintMacros.nf"
885824d3 54# include "basic.h"
08eb3d0e 55# include "cscanner.h"
885824d3 56# include "cgrammar.h"
57# include "exprChecks.h"
58
59/*@-allmacros@*/
60/*@-matchfields@*/
61
62# define SHOWCSYM FALSE
885824d3 63
64/*
65** This is necessary, or else when the bison-generated code #include's malloc.h,
66** there will be a parse error.
67**
68** Unfortunately, it means the error checking on malloc, etc. is lost for allocations
69** in bison-generated files under Win32.
70*/
71
72# ifdef WIN32
73# undef malloc
74# undef calloc
75# undef realloc
76# endif
77
78%}
79
80%union
81{
28bf4b0b 82 lltok tok;
83 int count;
84 qual typequal;
85 qualList tquallist;
86 ctype ctyp;
990ec868 87 /*@dependent@*/ sRef sr;
b37cf05e 88 /*@only@*/ sRef osr;
28bf4b0b 89
90 /*@only@*/ functionClauseList funcclauselist;
91 /*@only@*/ functionClause funcclause;
92 /*@only@*/ flagSpec flagspec;
93 /*@only@*/ globalsClause globsclause;
94 /*@only@*/ modifiesClause modsclause;
95 /*@only@*/ warnClause warnclause;
96 /*@only@*/ stateClause stateclause;
97
3814599d 98 /*@only@*/ functionConstraint fcnconstraint;
99
08eb3d0e 100 /*@only@*/ metaStateConstraint msconstraint;
101 /*@only@*/ metaStateSpecifier msspec;
102 /*@only@*/ metaStateExpression msexpr;
103 /*@observer@*/ metaStateInfo msinfo;
104
28bf4b0b 105 /*@only@*/ sRefList srlist;
106 /*@only@*/ globSet globset;
107 /*@only@*/ qtype qtyp;
108 /*@only@*/ cstring cname;
109 /*@observer@*/ annotationInfo annotation;
110 /*@only@*/ idDecl ntyp;
111 /*@only@*/ idDeclList ntyplist;
112 /*@only@*/ uentryList flist;
113 /*@owned@*/ uentryList entrylist;
114 /*@observer@*/ /*@dependent@*/ uentry entry;
115 /*@only@*/ uentry oentry;
116 /*@only@*/ exprNode expr;
117 /*@only@*/ enumNameList enumnamelist;
e83c79ec 118 /*@only@*/ exprNodeList exprlist;
28bf4b0b 119 /*@only@*/ sRefSet srset;
120 /*@only@*/ cstringList cstringlist;
08eb3d0e 121
103db890 122 /*drl
123 added 1/19/2001
124 */
125 constraint con;
126 constraintList conL;
127 constraintExpr conE;
28bf4b0b 128 /* drl */
885824d3 129}
130
131/* standard C tokens */
132
133%token <tok> BADTOK SKIPTOK
134%token <tok> CTOK_ELIPSIS CASE DEFAULT CIF CELSE SWITCH WHILE DO CFOR
135%token <tok> GOTO CONTINUE BREAK RETURN
136%token <tok> TSEMI TLBRACE TRBRACE TCOMMA TCOLON TASSIGN TLPAREN
137%token <tok> TRPAREN TLSQBR TRSQBR TDOT TAMPERSAND TEXCL TTILDE
138%token <tok> TMINUS TPLUS TMULT TDIV TPERCENT TLT TGT TCIRC TBAR TQUEST
abd7f895 139%token <tok> CSIZEOF CALIGNOF CTYPEOF ARROW_OP CTYPEDEF COFFSETOF
885824d3 140%token <tok> INC_OP DEC_OP LEFT_OP RIGHT_OP
141%token <tok> LE_OP GE_OP EQ_OP NE_OP AND_OP OR_OP
142%token <tok> MUL_ASSIGN DIV_ASSIGN MOD_ASSIGN ADD_ASSIGN SUB_ASSIGN
143%token <tok> LEFT_ASSIGN RIGHT_ASSIGN AND_ASSIGN XOR_ASSIGN OR_ASSIGN
144%token <tok> CSTRUCT CUNION CENUM
145%token <tok> VA_ARG VA_DCL
28bf4b0b 146%token <tok> QWARN
885824d3 147%token <tok> QGLOBALS
148%token <tok> QMODIFIES
149%token <tok> QNOMODS
150%token <tok> QCONSTANT
151%token <tok> QFUNCTION
152%token <tok> QITER
153%token <tok> QDEFINES
154%token <tok> QUSES
155%token <tok> QALLOCATES
156%token <tok> QSETS
157%token <tok> QRELEASES
158%token <tok> QPRECLAUSE
86d93ed3 159%token <tok> QPOSTCLAUSE
160%token <tok> QINVARIANT
885824d3 161%token <tok> QALT
162%token <tok> QUNDEF QKILLED
163%token <tok> QENDMACRO
164
1b8ae690 165/* additional tokens introduced by splint pre-processor. */
885824d3 166%token <tok> LLMACRO LLMACROITER LLMACROEND TENDMACRO
167
168/* break comments: */
169%token <tok> QSWITCHBREAK QLOOPBREAK QINNERBREAK QSAFEBREAK
170%token <tok> QINNERCONTINUE
171
172/* case fall-through marker: */
173%token <tok> QFALLTHROUGH
174
175/* used in scanner only */
176%token <tok> QLINTNOTREACHED
177%token <tok> QLINTFALLTHROUGH
178%token <tok> QLINTFALLTHRU
179%token <tok> QARGSUSED
180%token <tok> QPRINTFLIKE QLINTPRINTFLIKE QSCANFLIKE QMESSAGELIKE
181
182/* not-reached marker: (used like a label) */
183%token <tok> QNOTREACHED
184
185/* type qualifiers: */
186%token <tok> QCONST QVOLATILE QINLINE QEXTENSION QEXTERN QSTATIC QAUTO QREGISTER
187%token <tok> QOUT QIN QYIELD QONLY QTEMP QSHARED QREF QUNIQUE
188%token <tok> QCHECKED QUNCHECKED QCHECKEDSTRICT QCHECKMOD
189%token <tok> QKEEP QKEPT QPARTIAL QSPECIAL QOWNED QDEPENDENT
190%token <tok> QRETURNED QEXPOSED QNULL QOBSERVER QISNULL
191%token <tok> QEXITS QMAYEXIT QNEVEREXIT QTRUEEXIT QFALSEEXIT
192%token <tok> QLONG QSIGNED QUNSIGNED QSHORT QUNUSED QSEF QNOTNULL QRELNULL
193%token <tok> QABSTRACT QCONCRETE QMUTABLE QIMMUTABLE
194%token <tok> QTRUENULL QFALSENULL QEXTERNAL
195%token <tok> QREFCOUNTED QREFS QNEWREF QTEMPREF QKILLREF QRELDEF
196%token <ctyp> CGCHAR CBOOL CINT CGFLOAT CDOUBLE CVOID
197%token <tok> QANYTYPE QINTEGRALTYPE QUNSIGNEDINTEGRALTYPE QSIGNEDINTEGRALTYPE
198
93307a76 199%token <tok> QNULLTERMINATED
11ed4f45 200%token <tok> QSETBUFFERSIZE
201%token <tok> QSETSTRINGLENGTH
93307a76 202%token <tok> QMAXSET
203%token <tok> QMAXREAD
a0a162cd 204%token <tok> QTESTINRANGE
11ed4f45 205
dcaf75ea 206%token <tok> TCAND
93307a76 207
208
885824d3 209/* identifiers, literals */
210%token <entry> IDENTIFIER
211%token <cname> NEW_IDENTIFIER TYPE_NAME_OR_ID
28bf4b0b 212%token <annotation> CANNOTATION
213%token <expr> CCONSTANT
214%type <cname> flagId
215%type <flagspec> flagSpec
216%type <expr> cconstantExpr
885824d3 217%token <entry> ITER_NAME ITER_ENDNAME
218%type <entry> endIter
28bf4b0b 219
220%type <funcclauselist> functionClauses functionClausesPlain
221%type <funcclause> functionClause functionClause functionClausePlain
222
223%type <globsclause> globalsClause globalsClausePlain
224%type <modsclause> modifiesClause modifiesClausePlain nomodsClause
e83c79ec 225%type <warnclause> warnClause warnClausePlain optWarnClause
d9a28762 226%type <funcclause> conditionClause conditionClausePlain
28bf4b0b 227%type <stateclause> stateClause stateClausePlain
08eb3d0e 228%type <msconstraint> metaStateConstraint
3814599d 229%type <fcnconstraint> functionConstraint
08eb3d0e 230%type <msspec> metaStateSpecifier
231%type <msexpr> metaStateExpression
28bf4b0b 232
233%type <sr> globId globIdListExpr
234%type <globset> globIdList
235
885824d3 236%token <ctyp> TYPE_NAME
08eb3d0e 237%token <msinfo> METASTATE_NAME
238%type <msinfo> metaStateName
885824d3 239%type <cname> enumerator newId /*@-varuse@*/ /* yacc declares yytranslate here */
240%type <count> pointers /*@=varuse@*/
241
d9a28762 242%type <tok> doHeader stateTag conditionTag startConditionClause
28bf4b0b 243%type <typequal> exitsQualifier checkQualifier stateQualifier
244 paramQualifier returnQualifier visibilityQualifier
245 typedefQualifier refcountQualifier definedQualifier
885824d3 246
247/* type construction */
248%type <ctyp> abstractDecl abstractDeclBase optAbstractDeclBase
249%type <ctyp> suSpc enumSpc typeName typeSpecifier
250
251%type <ntyp> namedDecl namedDeclBase optNamedDecl
252%type <ntyp> plainNamedDecl plainNamedDeclBase
253%type <ntyp> structNamedDecl
254%type <ntyp> fcnDefHdrAux plainFcn
255
256%type <oentry> paramDecl
257%type <entry> id
258
259%type <ntyplist> structNamedDeclList
260
261%type <entrylist> genericParamList paramTypeList paramList idList paramIdList
e83c79ec 262%type <exprlist> argumentExprList iterArgList
263%type <exprlist> initList namedInitializerList namedInitializerListAux
885824d3 264%type <flist> structDeclList structDecl
28bf4b0b 265%type <srset> locModifies modList specClauseList optSpecClauseList
885824d3 266%type <sr> mExpr modListExpr specClauseListExpr
93307a76 267
268/*drl*/
08eb3d0e 269%type <con> BufConstraint
93307a76 270%type <tok> relationalOp
271%type <tok> BufBinaryOp
272%type <tok> bufferModifier
273
103db890 274%type <conE> BufConstraintExpr
93307a76 275
103db890 276%type <conE> BufConstraintTerm
277%type <sr> BufConstraintSrefExpr
93307a76 278
3814599d 279%type <conL> BufConstraintList
93307a76 280
86d93ed3 281%type <conL> optStructInvariant
282
93307a76 283%type <tok> BufUnaryOp
284
86d93ed3 285/*drl 1/6/2002 either /\ or && */
286%type <tok> constraintSeperator
287
885824d3 288%type <enumnamelist> enumeratorList
289%type <cstringlist> fieldDesignator
290
291%type <expr> sizeofExpr sizeofExprAux offsetofExpr
292%type <expr> openScope closeScope
293%type <expr> instanceDecl namedInitializer optDeclarators
294%type <expr> primaryExpr postfixExpr primaryIterExpr postfixIterExpr
295%type <expr> unaryExpr castExpr timesExpr plusExpr
296%type <expr> unaryIterExpr castIterExpr timesIterExpr plusIterExpr
297%type <expr> shiftExpr relationalExpr equalityExpr bitandExpr
298%type <expr> xorExpr bitorExpr andExpr
299%type <expr> orExpr conditionalExpr assignExpr
300%type <expr> shiftIterExpr relationalIterExpr equalityIterExpr bitandIterExpr
301%type <expr> xorIterExpr bitorIterExpr andIterExpr
302%type <expr> orIterExpr conditionalIterExpr assignIterExpr iterArgExpr
303%type <expr> expr optExpr constantExpr
304%type <expr> init macroBody iterBody endBody partialIterStmt iterSelectionStmt
305%type <expr> stmt stmtList fcnBody iterStmt iterDefStmt iterDefStmtList
306%type <expr> labeledStmt caseStmt defaultStmt
307%type <expr> compoundStmt compoundStmtAux compoundStmtRest compoundStmtAuxErr
308%type <expr> expressionStmt selectionStmt iterationStmt jumpStmt iterDefIterationStmt
309%type <expr> stmtErr stmtListErr compoundStmtErr expressionStmtErr
abd7f895 310%type <expr> iterationStmtErr initializerList typeInitializerList initializer
311%type <expr> ifPred whilePred forPred iterWhilePred typeInitializer
885824d3 312
1214340e 313%type <expr> designator designatorList designation
314
885824d3 315%type <typequal> storageSpecifier typeQualifier typeModifier globQual
316%type <tquallist> optGlobQuals
317%type <qtyp> completeType completeTypeSpecifier optCompleteType
318%type <qtyp> completeTypeSpecifierAux altType typeExpression
319
320%start file
321
322%%
323
324file
325 :
326 | externalDefs
327
328externalDefs
b7e84605 329 : externalDef { context_checkGlobalScope (); }
330 | externalDefs externalDef { context_checkGlobalScope (); }
885824d3 331
332externalDef
333 : fcnDef optSemi { uentry_clearDecl (); }
334 | constantDecl { uentry_clearDecl (); }
335 | fcnDecl { uentry_clearDecl (); }
336 | iterDecl { uentry_clearDecl (); }
337 | macroDef { uentry_clearDecl (); }
338 | initializer { uentry_checkDecl (); exprNode_free ($1); }
9dc8a5c1 339 | TSEMI { uentry_clearDecl (); /* evans 2002-02-08: okay to have a null statement */ }
885824d3 340 | error { uentry_clearDecl (); }
341
342constantDecl
343 : QCONSTANT completeTypeSpecifier NotType namedDecl NotType optSemi IsType QENDMACRO
344 { checkConstant ($2, $4); }
345 | QCONSTANT completeTypeSpecifier NotType namedDecl NotType TASSIGN IsType init optDeclarators optSemi QENDMACRO
346 { checkValueConstant ($2, $4, $8) ; }
347
348fcnDecl
28bf4b0b 349 : QFUNCTION { context_enterFunctionHeader (); } plainFcn optSemi QENDMACRO
350 {
351 declareStaticFunction ($3); context_quietExitFunction ();
352 context_exitFunctionHeader ();
353 }
885824d3 354
355plainFcn
356 : plainNamedDecl
357 {
358 qtype qint = qtype_create (ctype_int);
359 $$ = idDecl_fixBase ($1, qint);
360 qtype_free (qint);
361 }
362 | completeTypeSpecifier NotType plainNamedDecl
363 { $$ = idDecl_fixBase ($3, $1); }
364
365plainNamedDecl
366 : plainNamedDeclBase
367 | pointers plainNamedDeclBase
368 { $$ = $2; qtype_adjustPointers ($1, idDecl_getTyp ($$)); }
369
370namedDeclBase
371 : newId { $$ = idDecl_create ($1, qtype_unknown ()); }
372 | IsType TLPAREN NotType namedDecl IsType TRPAREN
373 { $$ = idDecl_expectFunction ($4); }
374 | namedDeclBase TLSQBR TRSQBR
393e573f 375 { $$ = idDecl_replaceCtype ($1, ctype_makeInnerArray (idDecl_getCtype ($1))); }
885824d3 376 | namedDeclBase TLSQBR IsType constantExpr TRSQBR NotType
e5f31c00 377 {
e8b84478 378 exprNode_findValue ($4);
379 idDecl_notExpectingFunction ($1);
380
7534721d 381 if (exprNode_hasValue ($4))
382 {
077d4458 383 $$ = idDecl_replaceCtype ($1, ctype_makeInnerFixedArray (idDecl_getCtype ($1),
384 exprNode_getLongValue ($4)));
7534721d 385 }
386 else
387 {
393e573f 388 $$ = idDecl_replaceCtype ($1, ctype_makeInnerArray (idDecl_getCtype ($1)));
7534721d 389 }
885824d3 390 }
391 | namedDeclBase PushType TLPAREN TRPAREN
28bf4b0b 392 { setCurrentParams (uentryList_missingParams); }
393 functionClauses
885824d3 394 { /* need to support globals and modifies here! */
395 ctype ct = ctype_makeFunction (idDecl_getCtype ($1),
396 uentryList_makeMissingParams ());
28bf4b0b 397
885824d3 398 $$ = idDecl_replaceCtype ($1, ct);
28bf4b0b 399 idDecl_addClauses ($$, $6);
d30bc0c7 400 context_popLoc ();
401 /*drl 7/25/01 added*/
402 setImplictfcnConstraints();
885824d3 403 }
404 | namedDeclBase PushType TLPAREN genericParamList TRPAREN
28bf4b0b 405 { setCurrentParams ($4); }
406 functionClauses
470b7798 407 { setImplictfcnConstraints ();
408 clearCurrentParams ();
885824d3 409 $$ = idDecl_replaceCtype ($1, ctype_makeFunction (idDecl_getCtype ($1), $4));
28bf4b0b 410 idDecl_addClauses ($$, $7);
4ab867d6 411 context_popLoc ();
885824d3 412 }
413
414plainNamedDeclBase
415 : newId { $$ = idDecl_create ($1, qtype_unknown ()); }
416 | IsType TLPAREN NotType plainNamedDecl IsType TRPAREN
417 { $$ = idDecl_expectFunction ($4); }
418 | plainNamedDeclBase TLSQBR TRSQBR
393e573f 419 { $$ = idDecl_replaceCtype ($1, ctype_makeInnerArray (idDecl_getCtype ($1))); }
885824d3 420 | plainNamedDeclBase TLSQBR IsType constantExpr TRSQBR NotType
421 {
422 int value;
423
424 if (exprNode_hasValue ($4)
425 && multiVal_isInt (exprNode_getValue ($4)))
426 {
427 value = (int) multiVal_forceInt (exprNode_getValue ($4));
428 }
429 else
430 {
431 value = 0;
432 }
433
393e573f 434 $$ = idDecl_replaceCtype ($1, ctype_makeInnerFixedArray (idDecl_getCtype ($1), value));
885824d3 435 }
436 | plainNamedDeclBase PushType TLPAREN TRPAREN
28bf4b0b 437 { setCurrentParams (uentryList_missingParams); }
438 functionClausesPlain
439 {
885824d3 440 ctype ct = ctype_makeFunction (idDecl_getCtype ($1),
441 uentryList_makeMissingParams ());
28bf4b0b 442
885824d3 443 $$ = idDecl_replaceCtype ($1, ct);
28bf4b0b 444 idDecl_addClauses ($$, $6);
885824d3 445 context_popLoc ();
446 }
447 | plainNamedDeclBase PushType TLPAREN genericParamList TRPAREN
28bf4b0b 448 { setCurrentParams ($4); }
449 functionClausesPlain
450 {
451 clearCurrentParams ();
885824d3 452 $$ = idDecl_replaceCtype ($1, ctype_makeFunction (idDecl_getCtype ($1), $4));
28bf4b0b 453 idDecl_addClauses ($$, $7);
885824d3 454 context_popLoc ();
455 }
456
457iterDecl
458 : QITER newId TLPAREN genericParamList TRPAREN
28bf4b0b 459 { setCurrentParams ($4); } functionClausesPlain
885824d3 460 { clearCurrentParams (); } optSemi QENDMACRO
461 { declareCIter ($2, $4); }
462
463macroDef
464 : LLMACRO macroBody TENDMACRO { exprNode_checkMacroBody ($2); }
465 | LLMACROITER iterBody TENDMACRO { exprNode_checkIterBody ($2); }
466 | LLMACROEND endBody TENDMACRO { exprNode_checkIterEnd ($2); }
467 | LLMACRO TENDMACRO /* no stmt */ { exprChecks_checkEmptyMacroBody (); }
468
469fcnDefHdr
08eb3d0e 470 : fcnDefHdrAux { clabstract_declareFunction ($1); }
471
472metaStateConstraint
473 : metaStateSpecifier TASSIGN metaStateExpression
474 { $$ = metaStateConstraint_create ($1, $3); }
475
476metaStateSpecifier
3814599d 477 : BufConstraintSrefExpr { cscanner_expectingMetaStateName (); } TCOLON metaStateName
6970c11b 478 { cscanner_clearExpectingMetaStateName ();
479 $$ = metaStateSpecifier_create ($1, $4); }
480 | CTOK_ELIPSIS { cscanner_expectingMetaStateName (); } TCOLON metaStateName
481 { cscanner_clearExpectingMetaStateName ();
482 $$ = metaStateSpecifier_createElipsis ($4); }
08eb3d0e 483
484metaStateExpression
485: metaStateSpecifier { $$ = metaStateExpression_create ($1); }
486| metaStateSpecifier TBAR metaStateExpression { $$ = metaStateExpression_createMerge ($1, $3); }
487
488metaStateName
489: METASTATE_NAME
93307a76 490
491/*drl*/
492
86d93ed3 493constraintSeperator
494: TCAND
495| AND_OP
496
93307a76 497BufConstraintList
86d93ed3 498: BufConstraint constraintSeperator BufConstraintList { $$ = constraintList_add ($3, $1); }
3814599d 499| BufConstraint { $$ = constraintList_single ($1); }
93307a76 500
501BufConstraint
dcaf75ea 502: BufConstraintExpr relationalOp BufConstraintExpr {
93307a76 503 $$ = makeConstraintParse3 ($1, $2, $3);
ef2aa32a 504 DPRINTF(("Done BufConstraint1\n")); }
93307a76 505
506bufferModifier
507 : QMAXSET
d9a28762 508 | QMAXREAD
93307a76 509
510relationalOp
511 : GE_OP
512 | LE_OP
513 | EQ_OP
514
515BufConstraintExpr
516 : BufConstraintTerm
34f0c5e7 517 | BufUnaryOp TLPAREN BufConstraintExpr TRPAREN {$$ = constraintExpr_parseMakeUnaryOp ($1, $3); DPRINTF( ("Got BufConstraintExpr UNary Op ") ); }
93307a76 518 | TLPAREN BufConstraintExpr BufBinaryOp BufConstraintExpr TRPAREN {
34f0c5e7 519 DPRINTF( ("Got BufConstraintExpr BINary Op ") );
93307a76 520 $$ = constraintExpr_parseMakeBinaryOp ($2, $3, $4); }
521
522BufConstraintTerm
b9904f57 523 : BufConstraintSrefExpr { $$ = constraintExpr_makeTermsRef ($1);}
524 | CCONSTANT { $$ = constraintExpr_makeIntLiteral (exprNode_getLongValue ($1)); }
103db890 525
526BufConstraintSrefExpr
08eb3d0e 527: id
528 { /*@-onlytrans@*/ $$ = checkbufferConstraintClausesId ($1); /*@=onlytrans@*/ /*@i523@*/ }
529| NEW_IDENTIFIER
530 { $$ = fixStateClausesId ($1); }
531| BufConstraintSrefExpr TLSQBR TRSQBR
532 { $$ = sRef_makeAnyArrayFetch ($1); }
533| BufConstraintSrefExpr TLSQBR CCONSTANT TRSQBR
534 {
535 /*
536 char *t; int c;
537 t = cstring_toCharsSafe (exprNode_unparse($3));
538 c = atoi( t );
539 */
540 $$ = sRef_makeArrayFetchKnown ($1, exprNode_getLongValue ($3));
541 }
542| TMULT BufConstraintSrefExpr
543 { $$ = sRef_constructPointer ($2); }
544| TLPAREN BufConstraintSrefExpr TRPAREN
545 { $$ = $2; }
546| BufConstraintSrefExpr TDOT newId
547 { cstring_markOwned ($3); $$ = sRef_buildField ($1, $3); }
548| BufConstraintSrefExpr ARROW_OP newId
549 { cstring_markOwned ($3); $$ = sRef_makeArrow ($1, $3); }
103db890 550
551/*
552| BufConstraintTerm TLSQBR TRSQBR { $$ = sRef_makeAnyArrayFetch ($1); }
553 | specClauseListExpr TLSQBR mExpr TRSQBR { $$ = sRef_makeAnyArrayFetch ($1); }
554 | TLPAREN specClauseListExpr TRPAREN { $$ = $2; }
555 | specClauseListExpr TDOT newId { cstring_markOwned ($3);
556 $$ = sRef_buildField ($1, $3); }
557*/
558
93307a76 559/*BufConstraintExpr
560: BufConstraintTerm
561*/
562
563BufUnaryOp
564: bufferModifier
565;
566
567BufBinaryOp
568 : TPLUS
569| TMINUS
570;
28bf4b0b 571/*
572** Function clauses can appear in any order.
573*/
93307a76 574
28bf4b0b 575functionClauses
576 : { $$ = functionClauseList_new (); }
577 | functionClause functionClauses
578 { $$ = functionClauseList_prepend ($2, $1); }
93307a76 579
28bf4b0b 580/*
581** Inside macro definitions, there are no end macros.
582*/
93307a76 583
28bf4b0b 584functionClausesPlain
585 :
586 { $$ = functionClauseList_new (); }
587 | functionClausePlain functionClausesPlain
588 { $$ = functionClauseList_prepend ($2, $1); }
589
590functionClause
591 : globalsClause { $$ = functionClause_createGlobals ($1); }
592 | modifiesClause { $$ = functionClause_createModifies ($1); }
593 | nomodsClause { $$ = functionClause_createModifies ($1); }
594 | stateClause { $$ = functionClause_createState ($1); }
d9a28762 595 | conditionClause { $$ = $1; }
28bf4b0b 596 | warnClause { $$ = functionClause_createWarn ($1); }
597
598functionClausePlain
599 : globalsClausePlain { $$ = functionClause_createGlobals ($1); }
600 | modifiesClausePlain { $$ = functionClause_createModifies ($1); }
601 | nomodsClause { $$ = functionClause_createModifies ($1); }
602 | stateClausePlain { $$ = functionClause_createState ($1); }
d9a28762 603 | conditionClausePlain { $$ = $1; }
28bf4b0b 604 | warnClausePlain { $$ = functionClause_createWarn ($1); }
605
606globalsClause
607 : globalsClausePlain QENDMACRO { $$ = $1; }
608
609globalsClausePlain
610 : QGLOBALS { setProcessingGlobalsList (); }
611 globIdList optSemi
612 {
613 unsetProcessingGlobals ();
614 $$ = globalsClause_create ($1, $3);
615 }
93307a76 616
28bf4b0b 617nomodsClause
618 : QNOMODS { $$ = modifiesClause_createNoMods ($1); }
93307a76 619
28bf4b0b 620modifiesClause
621 : modifiesClausePlain QENDMACRO { $$ = $1; }
38496f11 622
28bf4b0b 623modifiesClausePlain
624 : QMODIFIES
625 {
626 context_setProtectVars (); enterParamsTemp ();
627 sRef_setGlobalScopeSafe ();
628 }
629 locModifies
630 {
631 exitParamsTemp ();
632 sRef_clearGlobalScopeSafe ();
633 context_releaseVars ();
634 $$ = modifiesClause_create ($1, $3);
635 }
93307a76 636
28bf4b0b 637flagSpec
638 : flagId
639 { $$ = flagSpec_createPlain ($1); }
640 | flagId TBAR flagSpec
641 { $$ = flagSpec_createOr ($1, $3); }
885824d3 642
28bf4b0b 643flagId
644 : NEW_IDENTIFIER
885824d3 645
e83c79ec 646optWarnClause
647 : warnClause
648 | /* empty */ { $$ = warnClause_undefined; }
649
28bf4b0b 650warnClause
651 : warnClausePlain QENDMACRO { $$ = $1; }
652
653warnClausePlain
654 : QWARN flagSpec cconstantExpr
6970c11b 655 {
656 llassert (exprNode_knownStringValue ($3));
657 $$ = warnClause_create ($1, $2, cstring_copy (multiVal_forceString (exprNode_getValue ($3))));
658 exprNode_free ($3);
659 }
28bf4b0b 660 | QWARN flagSpec
6970c11b 661 { $$ = warnClause_create ($1, $2, cstring_undefined); }
885824d3 662
885824d3 663globIdList
28bf4b0b 664 : globIdListExpr { $$ = globSet_single ($1); }
665 | globIdList TCOMMA globIdListExpr { $$ = globSet_insert ($1, $3); }
885824d3 666
667globIdListExpr
28bf4b0b 668 : optGlobQuals globId { $$ = clabstract_createGlobal ($2, $1); }
669
670optGlobQuals
671 : /* empty */ { $$ = qualList_undefined; }
672 | globQual optGlobQuals { $$ = qualList_add ($2, $1); }
885824d3 673
674globId
675 : id { $$ = uentry_getSref ($1); }
28bf4b0b 676 | NEW_IDENTIFIER { $$ = clabstract_unrecognizedGlobal ($1); }
677 | initializer { $$ = clabstract_checkGlobal ($1); }
885824d3 678
679globQual
680 : QUNDEF { $$ = qual_createUndef (); }
681 | QKILLED { $$ = qual_createKilled (); }
682 | QOUT { $$ = qual_createOut (); }
683 | QIN { $$ = qual_createIn (); }
684 | QPARTIAL { $$ = qual_createPartial (); }
685
28bf4b0b 686stateTag
885824d3 687 : QDEFINES
688 | QUSES
689 | QALLOCATES
690 | QSETS
691 | QRELEASES
692
28bf4b0b 693conditionTag
885824d3 694 : QPRECLAUSE
695 | QPOSTCLAUSE
696
885824d3 697fcnDefHdrAux
698 : namedDecl
699 {
700 qtype qint = qtype_create (ctype_int);
701 $$ = idDecl_fixBase ($1, qint);
702 qtype_free (qint);
703 }
704 | completeTypeSpecifier NotType namedDecl
705 { $$ = idDecl_fixBase ($3, $1); }
706
707fcnBody
708 : TLBRACE { checkDoneParams (); context_enterInnerContext (); }
709 compoundStmtRest
710 {
711 exprNode_checkFunctionBody ($3); $$ = $3;
712 context_exitInner ($3);
713 }
7ebcc5bb 714 | { context_enterOldStyleScope (); } initializerList
715 { oldStyleDoneParams (); context_enterInnerContext (); }
885824d3 716 compoundStmt
717 {
7ebcc5bb 718 exprNode_checkFunctionBody ($4);
719 $$ = $4; /* oldstyle */
720 context_exitInner ($4);
885824d3 721 }
722
723fcnDef
724 : fcnDefHdr fcnBody
725 {
726 context_setFunctionDefined (exprNode_loc ($2));
dfd82dce 727 exprNode_checkFunction (context_getHeader (), $2);
4cccc6ad 728 /* DRL 8 8 2000 */
729
885824d3 730 context_exitFunction ();
731 }
732
733locModifies
885824d3 734 : modList optSemi { $$ = $1; }
735 | optSemi { $$ = sRefSet_new (); }
736
737modListExpr
738 : id { $$ = uentry_getSref ($1); checkModifiesId ($1); }
739 | NEW_IDENTIFIER { $$ = fixModifiesId ($1); }
740 | modListExpr TLSQBR TRSQBR { $$ = modListArrayFetch ($1, sRef_undefined); }
741 | modListExpr TLSQBR mExpr TRSQBR { $$ = modListArrayFetch ($1, $3); }
742 | TMULT modListExpr { $$ = modListPointer ($2); }
743 | TLPAREN modListExpr TRPAREN { $$ = $2; }
744 | modListExpr TDOT newId { $$ = modListFieldAccess ($1, $3); }
745 | modListExpr ARROW_OP newId { $$ = modListArrowAccess ($1, $3); }
746
747
748mExpr
28bf4b0b 749 : modListExpr { $$ = $1; }
750 | cconstantExpr { $$ = sRef_makeUnknown (); /* sRef_makeConstant ($1); ? */ }
885824d3 751 /* arithmetic? */
752
753modList
754 : modListExpr { $$ = sRefSet_single ($1); }
755 | modList TCOMMA modListExpr { $$ = sRefSet_insert ($1, $3); }
756
757specClauseListExpr
758 : id
28bf4b0b 759 { $$ = checkStateClausesId ($1); }
885824d3 760 | NEW_IDENTIFIER
28bf4b0b 761 { $$ = fixStateClausesId ($1); }
885824d3 762 | specClauseListExpr TLSQBR TRSQBR { $$ = sRef_makeAnyArrayFetch ($1); }
763 | specClauseListExpr TLSQBR mExpr TRSQBR { $$ = sRef_makeAnyArrayFetch ($1); }
764 | TMULT specClauseListExpr { $$ = sRef_constructPointer ($2); }
765 | TLPAREN specClauseListExpr TRPAREN { $$ = $2; }
766 | specClauseListExpr TDOT newId { cstring_markOwned ($3);
767 $$ = sRef_buildField ($1, $3); }
768 | specClauseListExpr ARROW_OP newId { cstring_markOwned ($3);
769 $$ = sRef_makeArrow ($1, $3); }
770
28bf4b0b 771optSpecClauseList
772 : /* empty */ { $$ = sRefSet_undefined }
773 | specClauseList
774
885824d3 775specClauseList
776 : specClauseListExpr
777 { if (sRef_isValid ($1)) { $$ = sRefSet_single ($1); }
778 else { $$ = sRefSet_undefined; }
779 }
780 | specClauseList TCOMMA specClauseListExpr
781 { if (sRef_isValid ($3))
782 {
783 $$ = sRefSet_insert ($1, $3);
784 }
785 else
786 {
787 $$ = $1;
788 }
789 }
790
791primaryExpr
792 : id { $$ = exprNode_fromIdentifier ($1); }
793 | NEW_IDENTIFIER { $$ = exprNode_fromUIO ($1); }
28bf4b0b 794 | cconstantExpr
885824d3 795 | TLPAREN expr TRPAREN { $$ = exprNode_addParens ($1, $2); }
796 | TYPE_NAME_OR_ID { $$ = exprNode_fromIdentifier (coerceId ($1)); }
797 | QEXTENSION { $$ = exprNode_makeError (); }
abd7f895 798 | TLPAREN { exprChecks_inCompoundStatementExpression (); }
799 compoundStmt TRPAREN
800 { exprChecks_leaveCompoundStatementExpression (); $$ = exprNode_compoundStatementExpression ($1, $3); }
885824d3 801
802postfixExpr
803 : primaryExpr
804 | postfixExpr TLSQBR expr TRSQBR { $$ = exprNode_arrayFetch ($1, $3); }
805 | postfixExpr TLPAREN TRPAREN { $$ = exprNode_functionCall ($1, exprNodeList_new ()); }
806 | postfixExpr TLPAREN argumentExprList TRPAREN { $$ = exprNode_functionCall ($1, $3); }
807 | VA_ARG TLPAREN assignExpr TCOMMA typeExpression TRPAREN { $$ = exprNode_vaArg ($1, $3, $5); }
28bf4b0b 808 | postfixExpr NotType TDOT newId IsType { $$ = exprNode_fieldAccess ($1, $3, $4); }
809 | postfixExpr NotType ARROW_OP newId IsType { $$ = exprNode_arrowAccess ($1, $3, $4); }
885824d3 810 | postfixExpr INC_OP { $$ = exprNode_postOp ($1, $2); }
811 | postfixExpr DEC_OP { $$ = exprNode_postOp ($1, $2); }
abd7f895 812 | TLPAREN typeExpression TRPAREN TLBRACE typeInitializerList optComma TRBRACE
813 { /* added for C99 */ $$ = exprNode_undefined; /*@i87 no checking */ }
814
885824d3 815argumentExprList
816 : assignExpr { $$ = exprNodeList_singleton ($1); }
817 | argumentExprList TCOMMA assignExpr { $$ = exprNodeList_push ($1, $3); }
818
819unaryExpr
820 : postfixExpr
821 | INC_OP unaryExpr { $$ = exprNode_preOp ($2, $1); }
822 | DEC_OP unaryExpr { $$ = exprNode_preOp ($2, $1); }
823 | TAMPERSAND castExpr { $$ = exprNode_preOp ($2, $1); }
824 | TMULT castExpr { $$ = exprNode_preOp ($2, $1); }
825 | TPLUS castExpr { $$ = exprNode_preOp ($2, $1); }
826 | TMINUS castExpr { $$ = exprNode_preOp ($2, $1); }
827 | TTILDE castExpr { $$ = exprNode_preOp ($2, $1); }
828 | TEXCL castExpr { $$ = exprNode_preOp ($2, $1); }
829 | sizeofExpr { $$ = $1; }
830 | offsetofExpr { $$ = $1; }
831
832fieldDesignator
833 : fieldDesignator TDOT newId { $$ = cstringList_add ($1, $3); }
834 | newId { $$ = cstringList_single ($1); }
835
836offsetofExpr
837 : COFFSETOF IsType TLPAREN typeExpression NotType TCOMMA fieldDesignator TRPAREN IsType
838 { $$ = exprNode_offsetof ($4, $7); }
839
840sizeofExpr
841 : IsType { context_setProtectVars (); }
842 sizeofExprAux { context_sizeofReleaseVars (); $$ = $3; }
843
844sizeofExprAux
845 : CSIZEOF TLPAREN typeExpression TRPAREN { $$ = exprNode_sizeofType ($3); }
846 | CSIZEOF unaryExpr { $$ = exprNode_sizeofExpr ($2); }
847 | CALIGNOF TLPAREN typeExpression TRPAREN { $$ = exprNode_alignofType ($3); }
848 | CALIGNOF unaryExpr { $$ = exprNode_alignofExpr ($2); }
849
850castExpr
851 : unaryExpr
852 | TLPAREN typeExpression TRPAREN castExpr
853 { $$ = exprNode_cast ($1, $4, $2); }
854
855timesExpr
856 : castExpr
857 | timesExpr TMULT castExpr { $$ = exprNode_op ($1, $3, $2); }
858 | timesExpr TDIV castExpr { $$ = exprNode_op ($1, $3, $2); }
859 | timesExpr TPERCENT castExpr { $$ = exprNode_op ($1, $3, $2); }
860
861plusExpr
862 : timesExpr
863 | plusExpr TPLUS timesExpr { $$ = exprNode_op ($1, $3, $2); }
864 | plusExpr TMINUS timesExpr { $$ = exprNode_op ($1, $3, $2); }
865
866shiftExpr
867 : plusExpr
868 | shiftExpr LEFT_OP plusExpr { $$ = exprNode_op ($1, $3, $2); }
869 | shiftExpr RIGHT_OP plusExpr { $$ = exprNode_op ($1, $3, $2); }
870
871relationalExpr
872 : shiftExpr
873 | relationalExpr TLT shiftExpr { $$ = exprNode_op ($1, $3, $2); }
874 | relationalExpr TGT shiftExpr { $$ = exprNode_op ($1, $3, $2); }
875 | relationalExpr LE_OP shiftExpr { $$ = exprNode_op ($1, $3, $2); }
876 | relationalExpr GE_OP shiftExpr { $$ = exprNode_op ($1, $3, $2); }
877
878equalityExpr
879 : relationalExpr
880 | equalityExpr EQ_OP relationalExpr { $$ = exprNode_op ($1, $3, $2); }
881 | equalityExpr NE_OP relationalExpr { $$ = exprNode_op ($1, $3, $2); }
882
883bitandExpr
884 : equalityExpr
885 | bitandExpr TAMPERSAND equalityExpr { $$ = exprNode_op ($1, $3, $2); }
886
887xorExpr
888 : bitandExpr
889 | xorExpr TCIRC bitandExpr { $$ = exprNode_op ($1, $3, $2); }
890;
891
892bitorExpr
893 : xorExpr
894 | bitorExpr TBAR xorExpr { $$ = exprNode_op ($1, $3, $2); }
895
896andExpr
897 : bitorExpr
898 | andExpr AND_OP
899 { exprNode_produceGuards ($1);
900 context_enterAndClause ($1);
901 }
902 bitorExpr
903 {
904 $$ = exprNode_op ($1, $4, $2);
905 context_exitAndClause ($$, $4);
906 }
907
908orExpr
909 : andExpr
910 | orExpr OR_OP
911 {
912 exprNode_produceGuards ($1);
913 context_enterOrClause ($1);
914 }
915 andExpr
916 {
917 $$ = exprNode_op ($1, $4, $2);
918 context_exitOrClause ($$, $4);
919 }
920
921conditionalExpr
922 : orExpr
923 | orExpr TQUEST { exprNode_produceGuards ($1); context_enterTrueClause ($1); } expr TCOLON
924 { context_enterFalseClause ($1); } conditionalExpr
925 { $$ = exprNode_cond ($1, $4, $7); context_exitClause ($1, $4, $7); }
926
927assignExpr
928 : conditionalExpr
929 | unaryExpr TASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
930 | unaryExpr MUL_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
931 | unaryExpr DIV_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
932 | unaryExpr MOD_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
933 | unaryExpr ADD_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
934 | unaryExpr SUB_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
935 | unaryExpr LEFT_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
936 | unaryExpr RIGHT_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
937 | unaryExpr AND_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
938 | unaryExpr XOR_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
939 | unaryExpr OR_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
940
941expr
942 : assignExpr
943 | expr TCOMMA assignExpr { $$ = exprNode_comma ($1, $3); }
944
945optExpr
946 : /* empty */ { $$ = exprNode_undefined; }
947 | expr
948
949constantExpr
950 : conditionalExpr
951
952/* instance_orTypeDecl_and_possible_initialization */
953
954initializer
955 : instanceDecl { $$ = $1; }
956 | VA_DCL { doVaDcl (); $$ = exprNode_makeError (); }
957 | typeDecl { $$ = exprNode_makeError (); }
958
959instanceDecl
28bf4b0b 960 : completeTypeSpecifier IsType TSEMI
961 { $$ = exprNode_makeError (); }
885824d3 962 /*
963 ** This causes r/r conflicts with function definitions.
964 ** Instead we need to snarf one first. (gack)
965 **
966 ** | completeTypeSpecifier { setProcessingVars ($1); }
967 ** NotType
968 ** namedInitializerList IsType TSEMI
969 ** { unsetProcessingVars (); }
970 **;
971 **
972 ** the solution is pretty ugly:
973 */
974 | completeTypeSpecifier NotType namedDecl NotType
975 {
28bf4b0b 976 setProcessingVars ($1);
977 processNamedDecl ($3);
978 }
979 IsType optDeclarators TSEMI IsType
980 {
981 unsetProcessingVars ();
982 $$ = exprNode_makeEmptyInitialization ($3);
983 DPRINTF (("Empty initialization: %s", exprNode_unparse ($$)));
984 }
885824d3 985 | completeTypeSpecifier NotType namedDecl NotType TASSIGN
28bf4b0b 986 { setProcessingVars ($1); processNamedDecl ($3); }
885824d3 987 IsType init optDeclarators TSEMI IsType
988 { $$ = exprNode_concat ($9, exprNode_makeInitialization ($3, $8));
989 unsetProcessingVars ();
990 }
28bf4b0b 991
885824d3 992namedInitializer
28bf4b0b 993 : namedDecl NotType
994 {
995 processNamedDecl ($1);
996 $$ = exprNode_makeEmptyInitialization ($1);
997 }
885824d3 998 | namedDecl NotType TASSIGN { processNamedDecl ($1); } IsType init
999 { $$ = exprNode_makeInitialization ($1, $6); }
1000
885824d3 1001typeDecl
1002 : CTYPEDEF completeTypeSpecifier { setProcessingTypedef ($2); }
e83c79ec 1003 NotType namedInitializerList IsType optWarnClause TSEMI
1004 { clabstract_declareType ($5, $7); }
885824d3 1005 | CTYPEDEF completeTypeSpecifier IsType TSEMI { /* in the ANSI grammar, semantics unclear */ }
1006 | CTYPEDEF namedInitializerList IsType TSEMI { /* in the ANSI grammar, semantics unclear */ }
1007
1008IsType
1009 : { g_expectingTypeName = TRUE; }
1010
1011PushType
1012 : { g_expectingTypeName = TRUE; context_pushLoc (); }
1013
1014namedInitializerList
e83c79ec 1015 : namedInitializerListAux IsType { $$ = $1; }
885824d3 1016
1017namedInitializerListAux
e83c79ec 1018 : namedInitializer { $$ = exprNodeList_singleton ($1); }
1019 | namedInitializerList TCOMMA NotType namedInitializer { $$ = exprNodeList_push ($1, $4); }
885824d3 1020
1021optDeclarators
1022 : /* empty */ { $$ = exprNode_makeError (); }
1023 | optDeclarators TCOMMA NotType namedInitializer { $$ = exprNode_concat ($1, $4); }
1024
1025init
28bf4b0b 1026 : assignExpr
885824d3 1027 | TLBRACE initList TRBRACE { $$ = exprNode_makeInitBlock ($1, $2); }
1028 | TLBRACE initList TCOMMA TRBRACE { $$ = exprNode_makeInitBlock ($1, $2); }
1214340e 1029 | designation init { $$ = exprNode_undefined; }
1030
1031/*
1032** Splint parses these (added in ISO C99), but no checking yet...
1033*/
1034
1035designation
1036 : designatorList TASSIGN { $$ = $1; }
1037 | newId TCOLON { $$ = exprNode_undefined;
1038 /* gcc extension, obsolete since 2.5 */ }
1039
1040designatorList
1041 : designator { $$ = exprNode_undefined; }
1042 | designatorList designator { $$ = exprNode_undefined; }
885824d3 1043
1214340e 1044designator
1045 : TLSQBR constantExpr TRSQBR { $$ = exprNode_undefined; }
1046 | TDOT newId { $$ = exprNode_undefined; }
885824d3 1047
1048initList
1049 : init
1050 { $$ = exprNodeList_singleton ($1); }
1051 | initList TCOMMA init
1052 { $$ = exprNodeList_push ($1, $3); }
1053
1054/*
1055** need to do the storage class global hack so tags are
1056** declared with the right storage class.
1057*/
1058
1059storageSpecifier
1060 : QEXTERN { setStorageClass (SCEXTERN); $$ = qual_createExtern (); }
1061 | QINLINE { $$ = qual_createInline (); }
1062 | QSTATIC { setStorageClass (SCSTATIC); $$ = qual_createStatic (); }
1063 | QAUTO { $$ = qual_createAuto (); }
1064 | QREGISTER { $$ = qual_createRegister (); }
1065
28bf4b0b 1066stateClause
1067 : stateClausePlain QENDMACRO { $$ = $1; }
1068
1069stateClausePlain
1070 : stateTag NotType
1071 {
1072 context_setProtectVars ();
1073 enterParamsTemp ();
1074 sRef_setGlobalScopeSafe ();
1075 }
1076 specClauseList optSemi IsType
1077 {
1078 exitParamsTemp ();
1079 sRef_clearGlobalScopeSafe ();
1080 context_releaseVars ();
1081 $$ = stateClause_createPlain ($1, $4);
1082 }
1083
1084conditionClause
1085 : conditionClausePlain QENDMACRO { $$ = $1; }
1086
d9a28762 1087startConditionClause
1088: conditionTag NotType { $$ = $1; context_enterFunctionHeader (); }
1089
28bf4b0b 1090conditionClausePlain
d9a28762 1091 : startConditionClause stateQualifier
28bf4b0b 1092 {
1093 context_exitFunctionHeader ();
1094 context_setProtectVars ();
1095 enterParamsTemp ();
1096 sRef_setGlobalScopeSafe ();
1097 }
1098 optSpecClauseList optSemi IsType
1099 {
1100 exitParamsTemp ();
1101 sRef_clearGlobalScopeSafe ();
1102 context_releaseVars ();
d9a28762 1103 $$ = functionClause_createState (stateClause_create ($1, $2, $4));
1104 }
1105 | startConditionClause
1106 {
1107 context_setProtectVars ();
1108 enterParamsTemp ();
1109 sRef_setGlobalScopeSafe ();
1110 }
3814599d 1111 functionConstraint optSemi IsType
d9a28762 1112 {
1113 context_exitFunctionHeader ();
1114 exitParamsTemp ();
1115 sRef_clearGlobalScopeSafe ();
1116 context_releaseVars ();
1117 DPRINTF (("done optGlobBufConstraintsAux\n"));
1118
1119 if (lltok_isEnsures ($1))
1120 {
1121 $$ = functionClause_createEnsures ($3);
1122 }
1123 else if (lltok_isRequires ($1))
1124 {
1125 $$ = functionClause_createRequires ($3);
1126 }
1127 else
1128 {
1129 BADBRANCH;
1130 }
ba45e1e4 1131
1132 DPRINTF (("FunctionclauseS: %s", functionClause_unparse ($$)));
08eb3d0e 1133 }
08eb3d0e 1134
3814599d 1135functionConstraint
1136 : BufConstraintList { $$ = functionConstraint_createBufferConstraint ($1); }
ba45e1e4 1137 | metaStateConstraint { $$ = functionConstraint_createMetaStateConstraint ($1); DPRINTF (("Made constraint: %s", functionConstraint_unparse ($$))); }
28bf4b0b 1138
1139exitsQualifier
1140 : QEXITS { $$ = qual_createExits (); }
1141 | QMAYEXIT { $$ = qual_createMayExit (); }
1142 | QTRUEEXIT { $$ = qual_createTrueExit (); }
1143 | QFALSEEXIT { $$ = qual_createFalseExit (); }
1144 | QNEVEREXIT { $$ = qual_createNeverExit (); }
1145
1146checkQualifier
1147 : QCHECKED { $$ = qual_createChecked (); }
1148 | QCHECKMOD { $$ = qual_createCheckMod (); }
1149 | QUNCHECKED { $$ = qual_createUnchecked (); }
1150 | QCHECKEDSTRICT { $$ = qual_createCheckedStrict (); }
1151
1152stateQualifier
1153 : QOWNED { $$ = qual_createOwned (); }
1154 | QDEPENDENT { $$ = qual_createDependent (); }
1155 | QYIELD { $$ = qual_createYield (); }
1156 | QTEMP { $$ = qual_createTemp (); }
1157 | QONLY { $$ = qual_createOnly (); }
1158 | QKEEP { $$ = qual_createKeep (); }
1159 | QKEPT { $$ = qual_createKept (); }
1160 | QSHARED { $$ = qual_createShared (); }
1161 | QUNIQUE { $$ = qual_createUnique (); }
1162 | QNULL { $$ = qual_createNull (); }
1163 | QISNULL { $$ = qual_createIsNull (); }
1164 | QRELNULL { $$ = qual_createRelNull (); }
1165 | QNOTNULL { $$ = qual_createNotNull (); }
1166 | QEXPOSED { $$ = qual_createExposed (); }
1167 | QOBSERVER { $$ = qual_createObserver (); }
e26e911c 1168 | QNULLTERMINATED { $$ = qual_createNullTerminated (); }
28bf4b0b 1169 | CANNOTATION { $$ = qual_createMetaState ($1); }
1170
e26e911c 1171
28bf4b0b 1172paramQualifier
1173 : QRETURNED { $$ = qual_createReturned (); }
1174 | QSEF { $$ = qual_createSef (); }
1175
1176visibilityQualifier
1177 : QUNUSED { $$ = qual_createUnused (); }
1178 | QEXTERNAL { $$ = qual_createExternal (); }
1179
1180returnQualifier
1181 : QTRUENULL { $$ = qual_createTrueNull (); }
1182 | QFALSENULL { $$ = qual_createFalseNull (); }
1183
1184typedefQualifier
1185 : QABSTRACT { $$ = qual_createAbstract (); }
1186 | QCONCRETE { $$ = qual_createConcrete (); }
1187 | QMUTABLE { $$ = qual_createMutable (); }
1188 | QIMMUTABLE { $$ = qual_createImmutable (); }
1189
1190refcountQualifier
1191 : QREFCOUNTED { $$ = qual_createRefCounted (); }
1192 | QREFS { $$ = qual_createRefs (); }
1193 | QKILLREF { $$ = qual_createKillRef (); }
1194 | QRELDEF { $$ = qual_createRelDef (); }
1195 | QNEWREF { $$ = qual_createNewRef (); }
1196 | QTEMPREF { $$ = qual_createTempRef (); }
11ed4f45 1197
885824d3 1198typeModifier
1199 : QSHORT { $$ = qual_createShort (); }
1200 | QLONG { $$ = qual_createLong (); }
1201 | QSIGNED { $$ = qual_createSigned (); }
1202 | QUNSIGNED { $$ = qual_createUnsigned (); }
1203
28bf4b0b 1204definedQualifier
1205 : QOUT { $$ = qual_createOut (); }
1206 | QIN { $$ = qual_createIn (); }
1207 | QPARTIAL { $$ = qual_createPartial (); }
1208 | QSPECIAL { $$ = qual_createSpecial (); }
1209
1210typeQualifier
1211 : QCONST IsType { $$ = qual_createConst (); }
1212 | QVOLATILE IsType { $$ = qual_createVolatile (); }
1213 | definedQualifier IsType { $$ = $1; }
1214 | stateQualifier IsType { $$ = $1; }
1215 | exitsQualifier IsType { $$ = $1; }
1216 | paramQualifier IsType { $$ = $1; }
1217 | checkQualifier IsType { $$ = $1; }
1218 | returnQualifier IsType { $$ = $1; }
1219 | visibilityQualifier IsType { $$ = $1; }
1220 | typedefQualifier IsType { $$ = $1; }
1221 | refcountQualifier IsType { $$ = $1; }
1222
1223/*
1224** This is copied into the mtgrammar!
1225*/
1226
885824d3 1227typeSpecifier
1228 : CGCHAR NotType
1229 | CINT NotType
1230 | CBOOL NotType
1231 | CGFLOAT NotType
1232 | CDOUBLE NotType
1233 | CVOID NotType
02b84d4b 1234 | QANYTYPE NotType { $$ = ctype_anytype; }
885824d3 1235 | QINTEGRALTYPE NotType { $$ = ctype_anyintegral; }
1236 | QUNSIGNEDINTEGRALTYPE NotType { $$ = ctype_unsignedintegral; }
1237 | QSIGNEDINTEGRALTYPE NotType { $$ = ctype_signedintegral; }
1238 | typeName NotType
1239 | suSpc NotType
1240 | enumSpc NotType
02b84d4b 1241 | typeModifier NotType { $$ = ctype_fromQual ($1); }
885824d3 1242
1243completeType
1244 : IsType completeTypeSpecifier IsType
1245 { $$ = qtype_resolve ($2); }
1246
1247completeTypeSpecifier
1248 : completeTypeSpecifierAux { $$ = $1; }
1249 | completeTypeSpecifierAux QALT altType QENDMACRO
1250 { $$ = qtype_mergeAlt ($1, $3); }
1251
1252altType
1253 : typeExpression
1254 | typeExpression TCOMMA altType
1255 { $$ = qtype_mergeAlt ($1, $3); }
1256
1257completeTypeSpecifierAux
1258 : storageSpecifier optCompleteType { $$ = qtype_addQual ($2, $1); }
1259 | typeQualifier optCompleteType { $$ = qtype_addQual ($2, $1); }
1260 | typeSpecifier optCompleteType { $$ = qtype_combine ($2, $1); }
1261
1262optCompleteType
1263 : /* empty */ { $$ = qtype_unknown (); }
1264 | completeTypeSpecifier { $$ = $1; }
1265
86d93ed3 1266
1267optStructInvariant
1268: /* empty */ { $$ = constraintList_undefined; }
1269/* don't want to have support for structure invariant until we're
1270 sure it's stable
1271 | QINVARIANT BufConstraintList QENDMACRO { $$ = $2 }
1272*/
1273
885824d3 1274suSpc
1275 : NotType CSTRUCT newId IsType TLBRACE { sRef_setGlobalScopeSafe (); }
1276 CreateStructInnerScope
86d93ed3 1277 structDeclList DeleteStructInnerScope { sRef_clearGlobalScopeSafe (); }
885824d3 1278 TRBRACE
288cbc5c 1279 optStructInvariant
1280 { ctype ct; ct = declareStruct ($3, $8); /* setGlobalStructInfo(ct, $12);*/ $$ = ct; }
885824d3 1281 | NotType CUNION newId IsType TLBRACE { sRef_setGlobalScopeSafe (); }
1282 CreateStructInnerScope
1283 structDeclList DeleteStructInnerScope { sRef_clearGlobalScopeSafe (); }
1284 TRBRACE
1285 { $$ = declareUnion ($3, $8); }
1286 | NotType CSTRUCT newId IsType TLBRACE TRBRACE
1287 { $$ = declareStruct ($3, uentryList_new ()); }
1288 | NotType CUNION newId IsType TLBRACE TRBRACE
1289 { $$ = declareUnion ($3, uentryList_new ()); }
1290 | NotType CSTRUCT IsType TLBRACE { sRef_setGlobalScopeSafe (); }
1291 CreateStructInnerScope
1292 structDeclList DeleteStructInnerScope { sRef_clearGlobalScopeSafe (); }
1293 TRBRACE
1294 { $$ = declareUnnamedStruct ($7); }
28bf4b0b 1295 | NotType CUNION IsType TLBRACE { sRef_setGlobalScopeSafe (); }
c8dda690 1296 CreateStructInnerScope structDeclList DeleteStructInnerScope
1297 { sRef_clearGlobalScopeSafe (); }
885824d3 1298 TRBRACE
1299 { $$ = declareUnnamedUnion ($7); }
1300 | NotType CSTRUCT IsType TLBRACE TRBRACE
1301 { $$ = ctype_createUnnamedStruct (uentryList_new ()); }
288cbc5c 1302 | NotType CUNION IsType TLBRACE TRBRACE
885824d3 1303 { $$ = ctype_createUnnamedUnion (uentryList_new ()); }
1304 | NotType CSTRUCT newId NotType { $$ = handleStruct ($3); }
288cbc5c 1305 | NotType CUNION newId NotType { $$ = handleUnion ($3); }
885824d3 1306
1307NotType
1308 : { g_expectingTypeName = FALSE; }
1309
1310structDeclList
1311 : structDecl
1312 | macroDef { $$ = uentryList_undefined; /* bogus! */ }
1313 | structDeclList structDecl { $$ = uentryList_mergeFields ($1, $2); }
1314
1315structDecl
1316 : completeTypeSpecifier NotType structNamedDeclList IsType TSEMI
1317 { $$ = fixUentryList ($3, $1); }
1318 | completeTypeSpecifier IsType TSEMI
1319 { $$ = fixUnnamedDecl ($1); }
1320
1321structNamedDeclList
1322 : structNamedDecl NotType
1323 { $$ = idDeclList_singleton ($1); }
1324 | structNamedDeclList TCOMMA structNamedDecl NotType
1325 { $$ = idDeclList_add ($1, $3); }
1326
1327structNamedDecl /* hack to get around namespace problems */
1328 : namedDecl { $$ = $1; }
1329 | TCOLON IsType constantExpr { $$ = idDecl_undefined; }
1330 | namedDecl TCOLON IsType constantExpr { $$ = $1; }
1331 /* Need the IsType in case there is a cast in the constant expression. */
1332
1333enumSpc
1334 : NotType CENUM TLBRACE enumeratorList TRBRACE IsType
1335 { $$ = declareUnnamedEnum ($4); }
1336 | NotType CENUM newId TLBRACE { context_pushLoc (); } enumeratorList TRBRACE IsType
1337 { context_popLoc (); $$ = declareEnum ($3, $6); }
1338 | NotType CENUM newId IsType { $$ = handleEnum ($3); }
1339
1340enumeratorList
1341 : enumerator
1342 { $$ = enumNameList_single ($1); }
1343 | enumeratorList TCOMMA enumerator
1344 { $$ = enumNameList_push ($1, $3); }
1345 | enumeratorList TCOMMA
1346
1347enumerator
1348 : newId
1349 { uentry ue = uentry_makeEnumConstant ($1, ctype_unknown);
1350 usymtab_supGlobalEntry (ue);
1351 $$ = $1;
1352 }
1353 | newId TASSIGN IsType constantExpr
1354 { uentry ue = uentry_makeEnumInitializedConstant ($1, ctype_unknown, $4);
1355 usymtab_supGlobalEntry (ue);
1356 $$ = $1;
1357 }
1358
1359optNamedDecl
1360 : namedDeclBase
1361 | optAbstractDeclBase { $$ = idDecl_create (cstring_undefined, qtype_create ($1)); }
1362 | pointers TYPE_NAME
1363 {
1364 qtype qt = qtype_unknown ();
1365
1366 qtype_adjustPointers ($1, qt);
1367 $$ = idDecl_create (cstring_copy (LastIdentifier ()), qt);
1368 }
1369 | pointers optNamedDecl
1370 { $$ = $2; qtype_adjustPointers ($1, idDecl_getTyp ($$)); }
1371
1372namedDecl
1373 : namedDeclBase
1374 | pointers namedDeclBase
1375 { $$ = $2; qtype_adjustPointers ($1, idDecl_getTyp ($$)); }
1376
1377genericParamList
1378 : paramTypeList { $$ = handleParamTypeList ($1); }
1379 | NotType paramIdList { $$ = handleParamIdList ($2); }
1380
1381innerMods
1382 : QCONST { /* ignored for now */; }
1383 | QVOLATILE { ; }
1384
1385innerModsList
1386 : innerMods { ; }
1387 | innerModsList innerMods { ; }
1388
1389pointers
1390 : TMULT { $$ = 1; }
1391 | TMULT innerModsList { $$ = 1; }
1392 | TMULT pointers { $$ = 1 + $2; }
1393 | TMULT innerModsList pointers { $$ = 1 + $3; }
1394
1395paramIdList
1396 : idList
1397 | idList TCOMMA CTOK_ELIPSIS { $$ = uentryList_add ($1, uentry_makeElipsisMarker ()); }
1398
1399idList
1400 : newId { $$ = uentryList_single (uentry_makeVariableLoc ($1, ctype_int)); }
1401 | idList TCOMMA newId { $$ = uentryList_add ($1, uentry_makeVariableLoc ($3, ctype_int)); }
1402
1403paramTypeList
1404 : CTOK_ELIPSIS { $$ = uentryList_single (uentry_makeElipsisMarker ()); }
1405 | paramList
1406 | paramList TCOMMA CTOK_ELIPSIS { $$ = uentryList_add ($1, uentry_makeElipsisMarker ()); }
1407
1408paramList
1409 : { storeLoc (); } paramDecl { $$ = uentryList_single ($2); }
1410 | paramList TCOMMA { storeLoc (); } paramDecl
1411 { $$ = uentryList_add ($1, $4); }
1412
1413paramDecl
1414 : IsType completeTypeSpecifier optNamedDecl IsType
1415 {
1416 if (isFlipOldStyle ())
1417 {
1418 llparseerror (cstring_makeLiteral ("Inconsistent function parameter syntax (mixing old and new style declaration)"));
1419 }
1420 else
1421 {
1422 setNewStyle ();
1423 }
1424 $$ = makeCurrentParam (idDecl_fixParamBase ($3, $2));
1425 }
1426 | newId /* its an old-style declaration */
1427 {
1428 idDecl tparam = idDecl_create ($1, qtype_unknown ());
1429
1430 if (isNewStyle ())
1431 {
1432 llparseerror (message ("Inconsistent function parameter syntax: %q",
1433 idDecl_unparse (tparam)));
1434 }
1435
1436 setFlipOldStyle ();
1437 $$ = makeCurrentParam (tparam);
1438 idDecl_free (tparam);
1439 }
1440
1441typeExpression
1442 : completeType
1443 | completeType abstractDecl { $$ = qtype_newBase ($1, $2); }
1444
1445abstractDecl
1446 : pointers { $$ = ctype_adjustPointers ($1, ctype_unknown); }
1447 | abstractDeclBase
1448 | pointers abstractDeclBase { $$ = ctype_adjustPointers ($1, $2); }
1449
1450optAbstractDeclBase
1451 : /* empty */ { $$ = ctype_unknown; }
1452 | abstractDeclBase
1453
1454abstractDeclBase
1455 : IsType TLPAREN NotType abstractDecl TRPAREN
1456 { $$ = ctype_expectFunction ($4); }
1457 | TLSQBR TRSQBR { $$ = ctype_makeArray (ctype_unknown); }
a0a162cd 1458 | TLSQBR constantExpr TRSQBR
1459 { $$ = ctype_makeFixedArray (ctype_unknown, exprNode_getLongValue ($2)); }
393e573f 1460 | abstractDeclBase TLSQBR TRSQBR { $$ = ctype_makeInnerArray ($1); }
a0a162cd 1461 | abstractDeclBase TLSQBR constantExpr TRSQBR
077d4458 1462 { $$ = ctype_makeInnerFixedArray ($1, exprNode_getLongValue ($3)); }
885824d3 1463 | IsType TLPAREN TRPAREN
1464 { $$ = ctype_makeFunction (ctype_unknown, uentryList_makeMissingParams ()); }
1465 | IsType TLPAREN paramTypeList TRPAREN
1466 { $$ = ctype_makeParamsFunction (ctype_unknown, $3); }
1467 | abstractDeclBase IsType TLPAREN TRPAREN
1468 { $$ = ctype_makeFunction ($1, uentryList_makeMissingParams ()); }
1469 | abstractDeclBase IsType TLPAREN paramTypeList TRPAREN
1470 { $$ = ctype_makeParamsFunction ($1, $4); }
1471
1472/* statement */
1473
1474stmt
1475 : labeledStmt
1476 | caseStmt
1477 | defaultStmt
1478 | compoundStmt
1479 | expressionStmt
1480 | selectionStmt
1481 | iterationStmt
1482 | iterStmt
1483 | jumpStmt
11ed4f45 1484
86d93ed3 1485
885824d3 1486iterBody
1487 : iterDefStmtList { $$ = $1; }
1488
1489endBody
1490 : iterBody
1491
1492iterDefStmtList
1493 : iterDefStmt
1494 | iterDefStmtList iterDefStmt
1495 { $$ = exprNode_concat ($1, $2); }
1496
1497iterDefIterationStmt
1498 : iterWhilePred iterDefStmtList
1499 { $$ = exprNode_while ($1, $2); }
1500 | doHeader stmtErr WHILE TLPAREN expr TRPAREN TSEMI
1501 { $$ = exprNode_doWhile ($2, $5); }
1502 | doHeader stmtErr WHILE TLPAREN expr TRPAREN
1503 { $$ = exprNode_doWhile ($2, $5); }
1504 | forPred iterDefStmt
1505 { $$ = exprNode_for ($1, $2); }
1506
1507forPred
1508 : CFOR TLPAREN optExpr TSEMI optExpr TSEMI
1509 { context_setProtectVars (); } optExpr { context_sizeofReleaseVars (); }
1510 TRPAREN
1511 { $$ = exprNode_forPred ($3, $5, $8);
1512 context_enterForClause ($5); }
1513
1514partialIterStmt
1515 : ITER_NAME CreateInnerScope TLPAREN
1516 { setProcessingIterVars ($1); }
1517 iterArgList TRPAREN
1518 { $$ = exprNode_iterStart ($1, $5); }
1519 | ITER_ENDNAME { $$ = exprNode_createId ($1); }
1520
1521iterDefStmt
1522 : labeledStmt
1523 | caseStmt
1524 | defaultStmt
28bf4b0b 1525 | openScope initializerList { $$ = $1; DPRINTF (("def stmt: %s", exprNode_unparse ($$))); }
885824d3 1526 | openScope
1527 | closeScope
1528 | expressionStmt
1529 | iterSelectionStmt
1530 | iterDefIterationStmt
1531 | partialIterStmt
1532 | jumpStmt
1533 | TLPAREN iterDefStmt TRPAREN { $$ = $2; }
1534 | error { $$ = exprNode_makeError (); }
1535
1536iterSelectionStmt
2e127cb8 1537 : ifPred { exprNode_checkIfPred ($1); } iterDefStmt
885824d3 1538 { /* don't: context_exitTrueClause ($1, $2); */
2e127cb8 1539 $$ = exprNode_if ($1, $3);
885824d3 1540 }
1541
1542openScope
1543 : CreateInnerScope TLBRACE { $$ = exprNode_createTok ($2); }
1544
1545closeScope
1546 : DeleteInnerScopeSafe TRBRACE { $$ = exprNode_createTok ($2); }
1547
1548macroBody
1549 : stmtErr
1550 | stmtListErr
1551
1552stmtErr
1553 : labeledStmt
1554 | caseStmt
1555 | defaultStmt
1556 | compoundStmtErr
1557 | expressionStmtErr
1558 | selectionStmt
1559 | iterStmt
1560 | iterationStmtErr
1561 | TLPAREN stmtErr TRPAREN { $$ = exprNode_addParens ($1, $2); }
1562 | jumpStmt
1563 | error { $$ = exprNode_makeError (); }
1564
1565labeledStmt
a0a162cd 1566 : newId TCOLON { $$ = exprNode_labelMarker ($1); }
1567 | QNOTREACHED stmt { $$ = exprNode_notReached ($2); }
885824d3 1568
fafc64cf 1569/*
1570** We allow more than one QFALLTHROUGH token to support mixed lint/splint markers.
1571*/
1572
1573optExtraFallThroughs
1574 : /* empty */ { ; }
1575 | QFALLTHROUGH optExtraFallThroughs { ; }
1576
885824d3 1577/* Note that we can semantically check that the object to the case is
1578 indeed constant. In this case, we may not want to go through this effort */
1579
1580caseStmt
1581 : CASE constantExpr { context_enterCaseClause ($2); }
1582 TCOLON { $$ = exprNode_caseMarker ($2, FALSE); }
fafc64cf 1583 | QFALLTHROUGH optExtraFallThroughs CASE constantExpr { context_enterCaseClause ($4); }
1584 TCOLON { $$ = exprNode_caseMarker ($4, TRUE); }
885824d3 1585
1586defaultStmt
1587 : DEFAULT { context_enterCaseClause (exprNode_undefined); }
1588 TCOLON { $$ = exprNode_defaultMarker ($1, FALSE); }
fafc64cf 1589 | QFALLTHROUGH optExtraFallThroughs DEFAULT { context_enterCaseClause (exprNode_undefined); }
1590 TCOLON { $$ = exprNode_defaultMarker ($3, TRUE); }
885824d3 1591
1592compoundStmt
1593 : TLPAREN compoundStmt TRPAREN { $$ = $2; }
1594 | CreateInnerScope compoundStmtAux
1595 { $$ = $2; context_exitInner ($2); }
1596
1597compoundStmtErr
1598 : CreateInnerScope compoundStmtAuxErr DeleteInnerScope { $$ = $2; }
1599
1600CreateInnerScope
1601 : { context_enterInnerContext (); }
1602
1603DeleteInnerScope
1604 : { context_exitInnerPlain (); }
1605
1606CreateStructInnerScope
1607 : { context_enterStructInnerContext (); }
1608
1609DeleteStructInnerScope
1610 : { context_exitStructInnerContext (); }
1611
1612DeleteInnerScopeSafe
1613 : { context_exitInnerSafe (); }
1614
1615compoundStmtRest
1616 : TRBRACE { $$ = exprNode_createTok ($1); }
1617 | QNOTREACHED TRBRACE { $$ = exprNode_notReached (exprNode_createTok ($2)); }
1618 | stmtList TRBRACE { $$ = exprNode_updateLocation ($1, lltok_getLoc ($2)); }
1619 | stmtList QNOTREACHED TRBRACE
1620 { $$ = exprNode_notReached (exprNode_updateLocation ($1, lltok_getLoc ($3))); }
1621 | initializerList TRBRACE { $$ = exprNode_updateLocation ($1, lltok_getLoc ($2)); }
1622 | initializerList QNOTREACHED TRBRACE
1623 { $$ = exprNode_notReached (exprNode_updateLocation ($1, lltok_getLoc ($3))); }
1624 | initializerList stmtList TRBRACE
1625 { $$ = exprNode_updateLocation (exprNode_concat ($1, $2), lltok_getLoc ($3)); }
1626 | initializerList stmtList QNOTREACHED TRBRACE
1627 { $$ = exprNode_notReached (exprNode_updateLocation (exprNode_concat ($1, $2),
1628 lltok_getLoc ($3)));
1629 }
1630
885824d3 1631compoundStmtAux
1632 : TLBRACE compoundStmtRest
1633 { $$ = exprNode_makeBlock ($2); }
1634
1635compoundStmtAuxErr
1636 : TLBRACE TRBRACE
1637 { $$ = exprNode_createTok ($2); }
1638 | TLBRACE stmtListErr TRBRACE
1639 { $$ = exprNode_updateLocation ($2, lltok_getLoc ($3)); }
1640 | TLBRACE initializerList TRBRACE
1641 { $$ = exprNode_updateLocation ($2, lltok_getLoc ($3)); }
1642 | TLBRACE initializerList stmtList TRBRACE
1643 { $$ = exprNode_updateLocation (exprNode_concat ($2, $3), lltok_getLoc ($4)); }
1644
1645stmtListErr
1646 : stmtErr
1647 | stmtListErr stmtErr { $$ = exprNode_concat ($1, $2); }
1648
1649initializerList
1650 : initializer { $$ = $1; }
1651 | initializerList initializer { $$ = exprNode_concat ($1, $2); }
1652
abd7f895 1653typeInitializerList
1654 : typeInitializer { $$ = $1; }
1655 | typeInitializerList TCOMMA typeInitializer { $$ = exprNode_concat ($1, $3); }
1656
1657typeInitializer
1658 : assignExpr { $$ = $1; }
1659 | TLBRACE typeInitializerList optComma TRBRACE { $$ = $2; }
1660
885824d3 1661stmtList
a0a162cd 1662 : stmt { $$ = $1; }
1663 | stmtList stmt { $$ = exprNode_concat ($1, $2); }
885824d3 1664
1665expressionStmt
1666 : TSEMI { $$ = exprNode_createTok ($1); }
4cccc6ad 1667 | expr TSEMI { $$ = exprNode_statement ($1, $2); }
885824d3 1668
1669expressionStmtErr
1670 : TSEMI { $$ = exprNode_createTok ($1); }
4cccc6ad 1671 | expr TSEMI { $$ = exprNode_statement ($1, $2); }
885824d3 1672 | expr { $$ = exprNode_checkExpr ($1); }
1673
1674ifPred
1675 : CIF TLPAREN expr TRPAREN
2e127cb8 1676 {
1677 exprNode_produceGuards ($3); context_enterTrueClause ($3);
1678 exprNode_checkIfPred ($3);
1679 $$ = $3;
1680 }
1681
885824d3 1682 /*
1683 ** not ANSI: | CIF TLPAREN compoundStmt TRPAREN
1684 ** { $$ = $3; context_enterTrueClause (); }
1685 */
1686
1687selectionStmt
1688 : ifPred stmt
1689 {
1690 context_exitTrueClause ($1, $2);
1691 $$ = exprNode_if ($1, $2);
1692 }
2e127cb8 1693 | ifPred stmt CELSE { context_enterFalseClause ($1); } stmt
885824d3 1694 {
1695 context_exitClause ($1, $2, $5);
1696 $$ = exprNode_ifelse ($1, $2, $5);
1697 }
1698 | SWITCH TLPAREN expr { context_enterSwitch ($3); }
1699 TRPAREN stmt { $$ = exprNode_switch ($3, $6); }
1700
1701whilePred
1702 : WHILE TLPAREN expr TRPAREN
1703 { $$ = exprNode_whilePred ($3); context_enterWhileClause ($3); }
1704 /* not ANSI: | WHILE TLPAREN compoundStmt TRPAREN stmt { $$ = exprNode_while ($3, $5); } */
1705
1706iterWhilePred
1707 : WHILE TLPAREN expr TRPAREN { $$ = exprNode_whilePred($3); }
1708
1709iterStmt
1710 : ITER_NAME { context_enterIterClause (); }
1711 CreateInnerScope TLPAREN { setProcessingIterVars ($1); }
1712 iterArgList TRPAREN
1713 compoundStmt endIter DeleteInnerScope
1714 {
1715 $$ = exprNode_iter ($1, $6, $8, $9);
1716
1717 }
1718
1719iterArgList
1720 : iterArgExpr { $$ = exprNodeList_singleton ($1); }
1721 | iterArgList { nextIterParam (); } TCOMMA iterArgExpr
1722 { $$ = exprNodeList_push ($1, $4); }
1723
1724iterArgExpr
1725 : assignIterExpr { $$ = exprNode_iterExpr ($1); }
1726 | id { $$ = exprNode_iterId ($1); }
1727 | TYPE_NAME_OR_ID { uentry ue = coerceIterId ($1);
1728
1729 if (uentry_isValid (ue))
1730 {
1731 $$ = exprNode_iterId (ue);
1732 }
1733 else
1734 {
1735 $$ = exprNode_iterNewId (cstring_copy (LastIdentifier ()));
1736 }
1737 }
1738 | NEW_IDENTIFIER { $$ = exprNode_iterNewId ($1); }
1739
1740/*
1741** everything is the same, EXCEPT it cannot be a NEW_IDENTIFIER
1742*/
1743
28bf4b0b 1744cconstantExpr
1745 : CCONSTANT
1746 | cconstantExpr CCONSTANT { $$ = exprNode_combineLiterals ($1, $2); }
1747
885824d3 1748primaryIterExpr
28bf4b0b 1749 : cconstantExpr
885824d3 1750 | TLPAREN expr TRPAREN { $$ = exprNode_addParens ($1, $2); }
1751
1752postfixIterExpr
1753 : primaryIterExpr
1754 | postfixExpr TLSQBR expr TRSQBR { $$ = exprNode_arrayFetch ($1, $3); }
1755 | postfixExpr TLPAREN TRPAREN { $$ = exprNode_functionCall ($1, exprNodeList_new ()); }
1756 | postfixExpr TLPAREN argumentExprList TRPAREN { $$ = exprNode_functionCall ($1, $3); }
1757 | VA_ARG TLPAREN assignExpr TCOMMA typeExpression TRPAREN
1758 { $$ = exprNode_vaArg ($1, $3, $5); }
28bf4b0b 1759 | postfixExpr NotType TDOT newId IsType { $$ = exprNode_fieldAccess ($1, $3, $4); }
1760 | postfixExpr NotType ARROW_OP newId IsType { $$ = exprNode_arrowAccess ($1, $3, $4); }
885824d3 1761 | postfixExpr INC_OP { $$ = exprNode_postOp ($1, $2); }
1762 | postfixExpr DEC_OP { $$ = exprNode_postOp ($1, $2); }
1763
1764unaryIterExpr
1765 : postfixIterExpr
1766 | INC_OP unaryExpr { $$ = exprNode_preOp ($2, $1); }
1767 | DEC_OP unaryExpr { $$ = exprNode_preOp ($2, $1); }
1768 | TAMPERSAND castExpr { $$ = exprNode_preOp ($2, $1); }
1769 | TMULT castExpr { $$ = exprNode_preOp ($2, $1); }
1770 | TPLUS castExpr { $$ = exprNode_preOp ($2, $1); }
1771 | TMINUS castExpr { $$ = exprNode_preOp ($2, $1); }
1772 | TTILDE castExpr { $$ = exprNode_preOp ($2, $1); }
1773 | TEXCL castExpr { $$ = exprNode_preOp ($2, $1); }
1774 | sizeofExpr { $$ = $1; }
1775
1776castIterExpr
1777 : unaryIterExpr
1778 | TLPAREN typeExpression TRPAREN castExpr { $$ = exprNode_cast ($1, $4, $2); }
1779
1780timesIterExpr
1781 : castIterExpr
1782 | timesExpr TMULT castExpr { $$ = exprNode_op ($1, $3, $2); }
1783 | timesExpr TDIV castExpr { $$ = exprNode_op ($1, $3, $2); }
1784 | timesExpr TPERCENT castExpr { $$ = exprNode_op ($1, $3, $2); }
1785
1786plusIterExpr
1787 : timesIterExpr
1788 | plusExpr TPLUS timesExpr { $$ = exprNode_op ($1, $3, $2); }
1789 | plusExpr TMINUS timesExpr { $$ = exprNode_op ($1, $3, $2); }
1790
1791shiftIterExpr
1792 : plusIterExpr
1793 | shiftExpr LEFT_OP plusExpr { $$ = exprNode_op ($1, $3, $2); }
1794 | shiftExpr RIGHT_OP plusExpr { $$ = exprNode_op ($1, $3, $2); }
1795
1796relationalIterExpr
1797 : shiftIterExpr
1798 | relationalExpr TLT shiftExpr { $$ = exprNode_op ($1, $3, $2); }
1799 | relationalExpr TGT shiftExpr { $$ = exprNode_op ($1, $3, $2); }
1800 | relationalExpr LE_OP shiftExpr { $$ = exprNode_op ($1, $3, $2); }
1801 | relationalExpr GE_OP shiftExpr { $$ = exprNode_op ($1, $3, $2); }
1802
1803equalityIterExpr
1804 : relationalIterExpr
1805 | equalityExpr EQ_OP relationalExpr { $$ = exprNode_op ($1, $3, $2); }
1806 | equalityExpr NE_OP relationalExpr { $$ = exprNode_op ($1, $3, $2); }
1807
1808bitandIterExpr
1809 : equalityIterExpr
1810 | bitandExpr TAMPERSAND equalityExpr { $$ = exprNode_op ($1, $3, $2); }
1811
1812xorIterExpr
1813 : bitandIterExpr
1814 | xorExpr TCIRC bitandExpr { $$ = exprNode_op ($1, $3, $2); }
1815;
1816
1817bitorIterExpr
1818 : xorIterExpr
1819 | bitorExpr TBAR xorExpr { $$ = exprNode_op ($1, $3, $2); }
1820
1821andIterExpr
1822 : bitorIterExpr
1823 | andExpr AND_OP bitorExpr { $$ = exprNode_op ($1, $3, $2); }
1824
1825orIterExpr
1826 : andIterExpr
1827 | orExpr OR_OP andExpr { $$ = exprNode_op ($1, $3, $2); }
1828
1829conditionalIterExpr
1830 : orIterExpr
1831 | orExpr TQUEST { context_enterTrueClause ($1); }
1832 expr TCOLON { context_enterFalseClause ($1); } conditionalExpr
1833 { $$ = exprNode_cond ($1, $4, $7); }
1834
1835assignIterExpr
1836 : conditionalIterExpr
1837 | unaryExpr TASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1838 | unaryExpr MUL_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1839 | unaryExpr DIV_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1840 | unaryExpr MOD_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1841 | unaryExpr ADD_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1842 | unaryExpr SUB_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1843 | unaryExpr LEFT_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1844 | unaryExpr RIGHT_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1845 | unaryExpr AND_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1846 | unaryExpr XOR_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1847 | unaryExpr OR_ASSIGN assignExpr { $$ = exprNode_assign ($1, $3, $2); }
1848
1849endIter
1850 : ITER_ENDNAME { $$ = $1; }
1851 | /* empty */ { $$ = uentry_undefined; }
1852
1853doHeader
1854 : DO { context_enterDoWhileClause (); $$ = $1; }
1855
1856iterationStmt
1857 : whilePred stmt
1858 { $$ = exprNode_while ($1, $2); context_exitWhileClause ($1, $2); }
1859 | doHeader stmt WHILE TLPAREN expr TRPAREN TSEMI
4cccc6ad 1860 { $$ = exprNode_statement (exprNode_doWhile ($2, $5), $7); }
885824d3 1861 | forPred stmt
1862 { $$ = exprNode_for ($1, $2); context_exitForClause ($1, $2); }
1863
1864iterationStmtErr
1865 : whilePred stmtErr { $$ = exprNode_while ($1, $2); context_exitWhileClause ($1, $2); }
1866 | doHeader stmtErr WHILE TLPAREN expr TRPAREN TSEMI
4cccc6ad 1867 { $$ = exprNode_statement (exprNode_doWhile ($2, $5), $7); }
885824d3 1868 | doHeader stmtErr WHILE TLPAREN expr TRPAREN
1869 { $$ = exprNode_doWhile ($2, $5); }
1870 | forPred stmtErr { $$ = exprNode_for ($1, $2); context_exitForClause ($1, $2); }
1871
1872jumpStmt
1873 : GOTO newId TSEMI { $$ = exprNode_goto ($2); }
1874 | CONTINUE TSEMI { $$ = exprNode_continue ($1, BADTOK); }
1875 | QINNERCONTINUE CONTINUE TSEMI
1876 { $$ = exprNode_continue ($1, QINNERCONTINUE); }
1877 | BREAK TSEMI { $$ = exprNode_break ($1, BADTOK); }
1878 | QSWITCHBREAK BREAK TSEMI { $$ = exprNode_break ($2, QSWITCHBREAK); }
1879 | QLOOPBREAK BREAK TSEMI { $$ = exprNode_break ($2, QLOOPBREAK); }
1880 | QINNERBREAK BREAK TSEMI { $$ = exprNode_break ($2, QINNERBREAK); }
1881 | QSAFEBREAK BREAK TSEMI { $$ = exprNode_break ($2, QSAFEBREAK); }
1882 | RETURN TSEMI { $$ = exprNode_nullReturn ($1); }
1883 | RETURN expr TSEMI { $$ = exprNode_return ($2); }
1884
1885optSemi
1886 :
1887 | TSEMI { ; }
1888
abd7f895 1889optComma
1890 :
1891 | TCOMMA { ; }
1892
885824d3 1893id
1894 : IDENTIFIER
1895
1896newId
1897 : NEW_IDENTIFIER
1898 | ITER_NAME { $$ = uentry_getName ($1); }
1899 | ITER_ENDNAME { $$ = uentry_getName ($1); }
1900 | id { $$ = uentry_getName ($1); }
1901 | TYPE_NAME_OR_ID { $$ = $1; }
1902
1903typeName
1904 : TYPE_NAME
1905 | TYPE_NAME_OR_ID { $$ = ctype_unknown; }
abd7f895 1906 | CTYPEOF TLPAREN expr TRPAREN { $$ = exprNode_getType ($3); exprNode_free ($3); }
1907 | CTYPEOF TLPAREN typeExpression TRPAREN { $$ = qtype_getType ($3); }
885824d3 1908
1909%%
1910
60eced23 1911/*@-redecl@*/ /*@-namechecks@*/
885824d3 1912extern char *yytext;
60eced23 1913/*@=redecl@*/ /*@=namechecks@*/
885824d3 1914
1915# include "bison.reset"
1916
1917void yyerror (/*@unused@*/ char *s)
1918{
1919 static bool givehint = FALSE;
1920
1921 if (context_inIterDef ())
1922 {
1923 llerror (FLG_SYNTAX, message ("Iter syntax not parseable: %s",
1924 context_inFunctionName ()));
1925 }
1926 else if (context_inIterEnd ())
1927 {
1928 llerror (FLG_SYNTAX, message ("Iter finalizer syntax not parseable: %s",
1929 context_inFunctionName ()));
1930 }
1931 else if (context_inMacro ())
1932 {
1933 llerror (FLG_SYNTAX, message ("Macro syntax not parseable: %s",
1934 context_inFunctionName ()));
1935
b7e84605 1936 if (context_inUnknownMacro ())
885824d3 1937 {
1938 if (!givehint)
1939 {
1940 llhint (cstring_makeLiteral
1941 ("Precede macro definition with /*@notfunction@*/ "
1942 "to suppress checking and force expansion"));
1943 givehint = TRUE;
1944 }
1945 }
1946
1947 swallowMacro ();
28bf4b0b 1948 context_exitAllClausesQuiet ();
885824d3 1949 }
1950 else
1951 {
1952 llparseerror (cstring_undefined);
1953 }
1954}
1955
1956
11ed4f45 1957
1958
28bf4b0b 1959
1960
1961
11ed4f45 1962
1963
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1966
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