X-Git-Url: http://andersk.mit.edu/gitweb/splint.git/blobdiff_plain/ef2aa32aebac950c1784a2dd25f0fa299b8840da..312c981596ce6202de7686f2d4c46aec1bae3939:/src/cgrammar.y diff --git a/src/cgrammar.y b/src/cgrammar.y index 1f4527b..3367716 100644 --- a/src/cgrammar.y +++ b/src/cgrammar.y @@ -1,32 +1,37 @@ /*;-*-C-*-; -** Copyright (c) Massachusetts Institute of Technology 1994-1998. -** All Rights Reserved. -** Unpublished rights reserved under the copyright laws of -** the United States. +** Splint - annotation-assisted static program checker +** Copyright (C) 1994-2002 University of Virginia, +** Massachusetts Institute of Technology ** -** THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED -** OR IMPLIED. ANY USE IS AT YOUR OWN RISK. +** This program is free software; you can redistribute it and/or modify it +** under the terms of the GNU General Public License as published by the +** Free Software Foundation; either version 2 of the License, or (at your +** option) any later version. +** +** This program is distributed in the hope that it will be useful, but +** WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +** General Public License for more details. +** +** The GNU General Public License is available from http://www.gnu.org/ or +** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +** MA 02111-1307, USA. ** -** This code is distributed freely and may be used freely under the -** following conditions: -** -** 1. This notice may not be removed or altered. -** -** 2. Works derived from this code are not distributed for -** commercial gain without explicit permission from MIT -** (for permission contact lclint-request@sds.lcs.mit.edu). +** For information on splint: info@splint.org +** To report a bug: splint-bug@splint.org +** For more information: http://www.splint.org */ %{ /* ** ** cgrammar.y ** -** Yacc/Bison grammar for extended ANSI C used by LCLint. +** Yacc/Bison grammar for extended ANSI C used by Splint. ** ** original grammar by Nate Osgood --- ** hacrat@catfish.lcs.mit.edu Mon Jun 14 13:06:32 1993 ** -** changes for LCLint --- handle typedef names correctly +** changes for Splint --- handle typedef names correctly ** fix struct/union parsing bug (empty struct is accepted) ** add productions to handle macros --- require ** error correction --- main source of conflicts in grammar. @@ -42,10 +47,11 @@ /*@=allmacros@*/ extern int yylex (); -extern void swallowMacro (void); +extern void yyerror (char *); -# include "lclintMacros.nf" +# include "splintMacros.nf" # include "basic.h" +# include "cscanner.h" # include "cgrammar.h" # include "exprChecks.h" @@ -53,7 +59,6 @@ extern void swallowMacro (void); /*@-matchfields@*/ # define SHOWCSYM FALSE -void yyerror (char *s); /* ** This is necessary, or else when the bison-generated code #include's malloc.h, @@ -69,31 +74,57 @@ void yyerror (char *s); # undef realloc # endif -void checkandsetBufState(idDecl id, exprNode is); %} %union { - lltok tok; - int count; - specialClauseKind sck; - qual typequal; - qualList tquallist; - ctype ctyp; - sRef sr; - /*@only@*/ qtype qtyp; - /*@only@*/ cstring cname; - /*@only@*/ idDecl ntyp; - /*@only@*/ idDeclList ntyplist; - /*@only@*/ uentryList flist; - /*@owned@*/ uentryList entrylist; - /*@observer@*/ /*@dependent@*/ uentry entry; - /*@only@*/ uentry oentry; - /*@only@*/ exprNode expr; - /*@only@*/ enumNameList enumnamelist; - /*@only@*/ exprNodeList alist; - /*@only@*/ sRefSet srset; - /*@only@*/ cstringList cstringlist; + lltok tok; + int count; + qual typequal; + qualList tquallist; + ctype ctyp; + /*@dependent@*/ sRef sr; + /*@only@*/ sRef osr; + + /*@only@*/ functionClauseList funcclauselist; + /*@only@*/ functionClause funcclause; + /*@only@*/ flagSpec flagspec; + /*@only@*/ globalsClause globsclause; + /*@only@*/ modifiesClause modsclause; + /*@only@*/ warnClause warnclause; + /*@only@*/ stateClause stateclause; + /*@only@*/ pointers pointers; + /*@only@*/ functionConstraint fcnconstraint; + + /*@only@*/ metaStateConstraint msconstraint; + /*@only@*/ metaStateSpecifier msspec; + /*@only@*/ metaStateExpression msexpr; + /*@observer@*/ metaStateInfo msinfo; + + /*@only@*/ sRefList srlist; + /*@only@*/ globSet globset; + /*@only@*/ qtype qtyp; + /*@only@*/ cstring cname; + /*@observer@*/ annotationInfo annotation; + /*@only@*/ idDecl ntyp; + /*@only@*/ idDeclList ntyplist; + /*@only@*/ uentryList flist; + /*@owned@*/ uentryList entrylist; + /*@observer@*/ /*@dependent@*/ uentry entry; + /*@only@*/ uentry oentry; + /*@only@*/ exprNode expr; + /*@only@*/ enumNameList enumnamelist; + /*@only@*/ exprNodeList exprlist; + /*@only@*/ sRefSet srset; + /*@only@*/ cstringList cstringlist; + + /*drl + added 1/19/2001 + */ + constraint con; + constraintList conL; + constraintExpr conE; + /* drl */ } /* standard C tokens */ @@ -104,13 +135,14 @@ void checkandsetBufState(idDecl id, exprNode is); %token TSEMI TLBRACE TRBRACE TCOMMA TCOLON TASSIGN TLPAREN %token TRPAREN TLSQBR TRSQBR TDOT TAMPERSAND TEXCL TTILDE %token TMINUS TPLUS TMULT TDIV TPERCENT TLT TGT TCIRC TBAR TQUEST -%token CSIZEOF CALIGNOF ARROW_OP CTYPEDEF COFFSETOF +%token CSIZEOF CALIGNOF CTYPEOF ARROW_OP CTYPEDEF COFFSETOF %token INC_OP DEC_OP LEFT_OP RIGHT_OP %token LE_OP GE_OP EQ_OP NE_OP AND_OP OR_OP %token MUL_ASSIGN DIV_ASSIGN MOD_ASSIGN ADD_ASSIGN SUB_ASSIGN %token LEFT_ASSIGN RIGHT_ASSIGN AND_ASSIGN XOR_ASSIGN OR_ASSIGN %token CSTRUCT CUNION CENUM %token VA_ARG VA_DCL +%token QWARN %token QGLOBALS %token QMODIFIES %token QNOMODS @@ -123,12 +155,13 @@ void checkandsetBufState(idDecl id, exprNode is); %token QSETS %token QRELEASES %token QPRECLAUSE -%token QPOSTCLAUSE +%token QPOSTCLAUSE +%token QINVARIANT %token QALT %token QUNDEF QKILLED %token QENDMACRO -/* additional tokens introduced by lclint pre-processor. */ +/* additional tokens introduced by splint pre-processor. */ %token LLMACRO LLMACROITER LLMACROEND TENDMACRO /* break comments: */ @@ -149,7 +182,7 @@ void checkandsetBufState(idDecl id, exprNode is); %token QNOTREACHED /* type qualifiers: */ -%token QCONST QVOLATILE QINLINE QEXTENSION QEXTERN QSTATIC QAUTO QREGISTER +%token QCONST QRESTRICT QVOLATILE QINLINE QEXTENSION QEXTERN QSTATIC QAUTO QREGISTER %token QOUT QIN QYIELD QONLY QTEMP QSHARED QREF QUNIQUE %token QCHECKED QUNCHECKED QCHECKEDSTRICT QCHECKMOD %token QKEEP QKEPT QPARTIAL QSPECIAL QOWNED QDEPENDENT @@ -164,28 +197,51 @@ void checkandsetBufState(idDecl id, exprNode is); %token QNULLTERMINATED %token QSETBUFFERSIZE -%token QBUFFERCONSTRAINT -%token QENSURESCONSTRAINT %token QSETSTRINGLENGTH %token QMAXSET %token QMAXREAD %token QTESTINRANGE +%token TCAND /* identifiers, literals */ %token IDENTIFIER %token NEW_IDENTIFIER TYPE_NAME_OR_ID -%token CCONSTANT +%token CANNOTATION +%token CCONSTANT +%type flagId +%type flagSpec +%type cconstantExpr %token ITER_NAME ITER_ENDNAME %type endIter -%type globId + +%type functionClauses functionClausesPlain +%type functionClause functionClause functionClausePlain + +%type globalsClause globalsClausePlain +%type modifiesClause modifiesClausePlain nomodsClause +%type warnClause warnClausePlain optWarnClause +%type conditionClause conditionClausePlain +%type stateClause stateClausePlain +%type metaStateConstraint +%type functionConstraint +%type metaStateSpecifier +%type metaStateExpression + +%type globId globIdListExpr +%type globIdList + %token TYPE_NAME +%token METASTATE_NAME +%type metaStateName %type enumerator newId /*@-varuse@*/ /* yacc declares yytranslate here */ -%type pointers /*@=varuse@*/ +%type pointers /*@=varuse@*/ -%type doHeader specialTag endSpecialTag stateSpecialClause endStateTag -%type specialClauseType +%type doHeader stateTag conditionTag startConditionClause +%type exitsQualifier checkQualifier stateQualifier + paramQualifier returnQualifier visibilityQualifier + typedefQualifier refcountQualifier definedQualifier /* type construction */ %type abstractDecl abstractDeclBase optAbstractDeclBase @@ -202,26 +258,32 @@ void checkandsetBufState(idDecl id, exprNode is); %type structNamedDeclList %type genericParamList paramTypeList paramList idList paramIdList -%type argumentExprList iterArgList -%type initList +%type argumentExprList iterArgList +%type initList namedInitializerList namedInitializerListAux %type structDeclList structDecl -%type locModifies locPlainModifies modList specClauseList +%type locModifies modList specClauseList optSpecClauseList %type mExpr modListExpr specClauseListExpr /*drl*/ -%type BufConstraint +%type BufConstraint %type relationalOp %type BufBinaryOp %type bufferModifier -%type BufConstraintExpr +%type BufConstraintExpr -%type BufConstraintTerm +%type BufConstraintTerm +%type BufConstraintSrefExpr -%type BufConstraintList +%type BufConstraintList + +%type optStructInvariant %type BufUnaryOp +/*drl 1/6/2002 either /\ or && */ +%type constraintSeperator + %type enumeratorList %type fieldDesignator @@ -244,14 +306,15 @@ void checkandsetBufState(idDecl id, exprNode is); %type compoundStmt compoundStmtAux compoundStmtRest compoundStmtAuxErr %type expressionStmt selectionStmt iterationStmt jumpStmt iterDefIterationStmt %type stmtErr stmtListErr compoundStmtErr expressionStmtErr -%type iterationStmtErr initializerList initializer ifPred whilePred forPred iterWhilePred -%type tst1 +%type iterationStmtErr initializerList typeInitializerList initializer +%type ifPred whilePred forPred iterWhilePred typeInitializer -%type storageSpecifier typeQualifier typeModifier globQual -%type optGlobQuals +%type designator designatorList designation + +%type storageSpecifier typeQualifier typeModifier globQual innerMods +%type optGlobQuals innerModsList %type completeType completeTypeSpecifier optCompleteType %type completeTypeSpecifierAux altType typeExpression -%type lclintassertion %start file @@ -262,8 +325,8 @@ file | externalDefs externalDefs - : externalDef - | externalDefs externalDef + : externalDef { context_checkGlobalScope (); } + | externalDefs externalDef { context_checkGlobalScope (); } externalDef : fcnDef optSemi { uentry_clearDecl (); } @@ -272,18 +335,22 @@ externalDef | iterDecl { uentry_clearDecl (); } | macroDef { uentry_clearDecl (); } | initializer { uentry_checkDecl (); exprNode_free ($1); } + | TSEMI { uentry_clearDecl (); lltok_free ($1); /* evans 2002-02-08: okay to have a null statement */ } | error { uentry_clearDecl (); } constantDecl : QCONSTANT completeTypeSpecifier NotType namedDecl NotType optSemi IsType QENDMACRO - { checkConstant ($2, $4); } + { checkConstant ($2, $4); lltok_free2 ($1, $8); } | QCONSTANT completeTypeSpecifier NotType namedDecl NotType TASSIGN IsType init optDeclarators optSemi QENDMACRO - { checkValueConstant ($2, $4, $8) ; } + { checkValueConstant ($2, $4, $8); lltok_free3 ($1, $6, $11); } fcnDecl - : QFUNCTION { context_enterFunctionDecl (); } plainFcn optSemi QENDMACRO - { declareStaticFunction ($3); context_quietExitFunction (); - context_exitFunctionDecl (); } + : QFUNCTION { context_enterFunctionHeader (); } plainFcn optSemi QENDMACRO + { + declareStaticFunction ($3); context_quietExitFunction (); + context_exitFunctionHeader (); + lltok_free2 ($1, $5); /*!*/ + } plainFcn : plainNamedDecl @@ -303,41 +370,65 @@ plainNamedDecl namedDeclBase : newId { $$ = idDecl_create ($1, qtype_unknown ()); } | IsType TLPAREN NotType namedDecl IsType TRPAREN - { $$ = idDecl_expectFunction ($4); } + { $$ = idDecl_expectFunction ($4); lltok_free2 ($2, $6); } | namedDeclBase TLSQBR TRSQBR - { $$ = idDecl_replaceCtype ($1, ctype_makeArray (idDecl_getCtype ($1))); } + { $$ = idDecl_replaceCtype ($1, ctype_makeInnerArray (idDecl_getCtype ($1))); lltok_free2 ($2, $3); } | namedDeclBase TLSQBR IsType constantExpr TRSQBR NotType - { - $$ = idDecl_replaceCtype ($1, ctype_makeFixedArray (idDecl_getCtype ($1), exprNode_getLongValue ($4))); + { + exprNode_findValue ($4); + idDecl_notExpectingFunction ($1); + + if (exprNode_hasValue ($4)) + { + $$ = idDecl_replaceCtype ($1, ctype_makeInnerFixedArray (idDecl_getCtype ($1), + exprNode_getLongValue ($4))); + } + else + { + $$ = idDecl_replaceCtype ($1, ctype_makeInnerArray (idDecl_getCtype ($1))); + } + + lltok_free2 ($2, $5); } | namedDeclBase PushType TLPAREN TRPAREN - { setCurrentParams (uentryList_missingParams); - } - optGlobMods optGlobBufConstraints + { setCurrentParams (uentryList_missingParams); } + functionClauses { /* need to support globals and modifies here! */ ctype ct = ctype_makeFunction (idDecl_getCtype ($1), uentryList_makeMissingParams ()); - + $$ = idDecl_replaceCtype ($1, ct); - context_popLoc (); + + /*drl 7/25/01 added*/ + setImplictfcnConstraints(); + + functionClauseList_ImplictConstraints($6); + + idDecl_addClauses ($$, $6); + context_popLoc (); + lltok_free2 ($3, $4); } | namedDeclBase PushType TLPAREN genericParamList TRPAREN - { setCurrentParams ($4); - } - optGlobMods optGlobBufConstraints - { clearCurrentParams (); + { setCurrentParams ($4); } + functionClauses + { + setImplictfcnConstraints (); + functionClauseList_ImplictConstraints($6); + clearCurrentParams (); $$ = idDecl_replaceCtype ($1, ctype_makeFunction (idDecl_getCtype ($1), $4)); - context_popLoc (); - - // printf("Done nameDeclBase\n"); + idDecl_addClauses ($$, $7); + context_popLoc (); + lltok_free2 ($3, $5); } plainNamedDeclBase : newId { $$ = idDecl_create ($1, qtype_unknown ()); } | IsType TLPAREN NotType plainNamedDecl IsType TRPAREN - { $$ = idDecl_expectFunction ($4); } + { $$ = idDecl_expectFunction ($4); lltok_free2 ($2, $6); } | plainNamedDeclBase TLSQBR TRSQBR - { $$ = idDecl_replaceCtype ($1, ctype_makeArray (idDecl_getCtype ($1))); } + { $$ = idDecl_replaceCtype ($1, ctype_makeInnerArray (idDecl_getCtype ($1))); + lltok_free2 ($2, $3); + } | plainNamedDeclBase TLSQBR IsType constantExpr TRSQBR NotType { int value; @@ -352,102 +443,91 @@ plainNamedDeclBase value = 0; } - $$ = idDecl_replaceCtype ($1, ctype_makeFixedArray (idDecl_getCtype ($1), value)); + $$ = idDecl_replaceCtype ($1, ctype_makeInnerFixedArray (idDecl_getCtype ($1), value)); + lltok_free2 ($2, $5); } | plainNamedDeclBase PushType TLPAREN TRPAREN - { setCurrentParams (uentryList_missingParams); - } - optPlainGlobMods - { /* need to support globals and modifies here! */ + { setCurrentParams (uentryList_missingParams); } + functionClausesPlain + { ctype ct = ctype_makeFunction (idDecl_getCtype ($1), uentryList_makeMissingParams ()); - + $$ = idDecl_replaceCtype ($1, ct); + idDecl_addClauses ($$, $6); context_popLoc (); + lltok_free2 ($3, $4); } | plainNamedDeclBase PushType TLPAREN genericParamList TRPAREN - { setCurrentParams ($4); - } - optPlainGlobMods - { clearCurrentParams (); + { setCurrentParams ($4); } + functionClausesPlain + { + clearCurrentParams (); $$ = idDecl_replaceCtype ($1, ctype_makeFunction (idDecl_getCtype ($1), $4)); + idDecl_addClauses ($$, $7); context_popLoc (); + lltok_free ($3); + /*!! lltok_free2 ($3, $5); */ } iterDecl : QITER newId TLPAREN genericParamList TRPAREN - { setCurrentParams ($4); } optPlainGlobMods + { setCurrentParams ($4); } functionClausesPlain { clearCurrentParams (); } optSemi QENDMACRO - { declareCIter ($2, $4); } + { declareCIter ($2, $4); + lltok_free3 ($1, $3, $5); + } macroDef - : LLMACRO macroBody TENDMACRO { exprNode_checkMacroBody ($2); } - | LLMACROITER iterBody TENDMACRO { exprNode_checkIterBody ($2); } - | LLMACROEND endBody TENDMACRO { exprNode_checkIterEnd ($2); } - | LLMACRO TENDMACRO /* no stmt */ { exprChecks_checkEmptyMacroBody (); } + : LLMACRO macroBody TENDMACRO { exprNode_checkMacroBody ($2); lltok_free2 ($1, $3); } + | LLMACROITER iterBody TENDMACRO { exprNode_checkIterBody ($2); lltok_free2 ($1, $3); } + | LLMACROEND endBody TENDMACRO { exprNode_checkIterEnd ($2); lltok_free2 ($1, $3);} + | LLMACRO TENDMACRO /* no stmt */ { exprChecks_checkEmptyMacroBody (); lltok_free2 ($1, $2); } fcnDefHdr - : fcnDefHdrAux { declareFunction ($1); } + : fcnDefHdrAux { clabstract_declareFunction ($1); } -optGlobMods - : { setProcessingGlobMods (); } optGlobModsRest - { clearProcessingGlobMods (); } +metaStateConstraint + : metaStateSpecifier TASSIGN metaStateExpression + { $$ = metaStateConstraint_create ($1, $3); lltok_free ($2); } +metaStateSpecifier + : BufConstraintSrefExpr { cscanner_expectingMetaStateName (); } TCOLON metaStateName + { cscanner_clearExpectingMetaStateName (); + $$ = metaStateSpecifier_create ($1, $4); + lltok_free ($3); + } + | CTOK_ELIPSIS { cscanner_expectingMetaStateName (); } TCOLON metaStateName + { cscanner_clearExpectingMetaStateName (); + $$ = metaStateSpecifier_createElipsis ($4); + lltok_free2 ($1, $3); + } -/*drl*/ - -optGlobBufConstraints - : { setProcessingGlobMods (); } optGlobBufConstraintsRest - { clearProcessingGlobMods (); } - - -optGlobBufConstraintsRest - : optGlobBufConstraintsAux optGlobEnsuresConstraintsAux - - -optGlobEnsuresConstraintsAux -: { - DPRINTF ( ("doing optGlobEnsuresConstraintsAux\n") ); -context_setProtectVars (); enterParamsTemp (); - sRef_setGlobalScopeSafe (); - -} QENSURESCONSTRAINT BufConstraintList QENDMACRO -{ - setEnsuresConstraints ($3); - exitParamsTemp (); - sRef_clearGlobalScopeSafe (); - context_releaseVars (); - DPRINTF (("done optGlobBufConstraintsAux\n"));} - | /*empty*/ +metaStateExpression +: metaStateSpecifier { $$ = metaStateExpression_create ($1); } +| metaStateSpecifier TBAR metaStateExpression { $$ = metaStateExpression_createMerge ($1, $3); lltok_free ($2); } +metaStateName +: METASTATE_NAME -optGlobBufConstraintsAux -: { - DPRINTF ( ("doing optGlobBufConstraintsAux\n") ); -context_setProtectVars (); enterParamsTemp (); - sRef_setGlobalScopeSafe (); +/*drl*/ -} QBUFFERCONSTRAINT BufConstraintList QENDMACRO -{ - setFunctionConstraints ($3); - exitParamsTemp (); - sRef_clearGlobalScopeSafe (); - context_releaseVars (); - DPRINTF (("done optGlobBufConstraintsAux\n"));} - | /*empty*/ +constraintSeperator +: TCAND +| AND_OP BufConstraintList -: BufConstraint BufConstraintList{ $$ = constraintList_add ($2, $1); } -| BufConstraint {constraintList c; c = constraintList_new(); c = constraintList_add (c, $1); $$ = c} +: BufConstraint constraintSeperator BufConstraintList { $$ = constraintList_add ($3, $1); } +| BufConstraint { $$ = constraintList_single ($1); } BufConstraint -: BufConstraintExpr relationalOp BufConstraintExpr TSEMI { +: BufConstraintExpr relationalOp BufConstraintExpr { $$ = makeConstraintParse3 ($1, $2, $3); DPRINTF(("Done BufConstraint1\n")); } bufferModifier : QMAXSET - |QMAXREAD + | QMAXREAD relationalOp : GE_OP @@ -462,14 +542,41 @@ BufConstraintExpr $$ = constraintExpr_parseMakeBinaryOp ($2, $3, $4); } BufConstraintTerm -: id { /* $$ = constraintExpr_makeTermsRef (checkSpecClausesId ($1)); */ - $$ = constraintExpr_makeTermsRef (checkbufferConstraintClausesId ($1));} - | NEW_IDENTIFIER { $$ = constraintExpr_makeTermsRef(fixSpecClausesId ($1) ); } - | CCONSTANT { char *t; int c; - t = cstring_toCharsSafe (exprNode_unparse($1)); - c = atoi( t ); - $$ = constraintExpr_makeIntLiteral (c); -} + : BufConstraintSrefExpr { $$ = constraintExpr_makeTermsRef ($1);} + | CCONSTANT { $$ = constraintExpr_makeIntLiteral (exprNode_getLongValue ($1)); } + +BufConstraintSrefExpr +: id + { /*@-onlytrans@*/ $$ = checkbufferConstraintClausesId ($1); /*@=onlytrans@*/ /*@i523@*/ } +| NEW_IDENTIFIER + { $$ = fixStateClausesId ($1); } +| BufConstraintSrefExpr TLSQBR TRSQBR + { $$ = sRef_makeAnyArrayFetch ($1); } +| BufConstraintSrefExpr TLSQBR CCONSTANT TRSQBR + { + /* + char *t; int c; + t = cstring_toCharsSafe (exprNode_unparse($3)); + c = atoi( t ); + */ + $$ = sRef_makeArrayFetchKnown ($1, exprNode_getLongValue ($3)); + } +| TMULT BufConstraintSrefExpr + { $$ = sRef_constructPointer ($2); } +| TLPAREN BufConstraintSrefExpr TRPAREN + { $$ = $2; } +| BufConstraintSrefExpr TDOT newId + { cstring_markOwned ($3); $$ = sRef_buildField ($1, $3); } +| BufConstraintSrefExpr ARROW_OP newId + { cstring_markOwned ($3); $$ = sRef_makeArrow ($1, $3); } + +/* +| BufConstraintTerm TLSQBR TRSQBR { $$ = sRef_makeAnyArrayFetch ($1); } + | specClauseListExpr TLSQBR mExpr TRSQBR { $$ = sRef_makeAnyArrayFetch ($1); } + | TLPAREN specClauseListExpr TRPAREN { $$ = $2; } + | specClauseListExpr TDOT newId { cstring_markOwned ($3); + $$ = sRef_buildField ($1, $3); } +*/ /*BufConstraintExpr : BufConstraintTerm @@ -483,45 +590,113 @@ BufBinaryOp : TPLUS | TMINUS ; +/* +** Function clauses can appear in any order. +*/ +functionClauses + : { $$ = functionClauseList_new (); } + | functionClause functionClauses + { $$ = functionClauseList_prepend ($2, $1); } -koptPlainGlobMods - : { setProcessingGlobMods (); } optPlainGlobModsRest - { clearProcessingGlobMods (); } +/* +** Inside macro definitions, there are no end macros. +*/ +functionClausesPlain + : + { $$ = functionClauseList_new (); } + | functionClausePlain functionClausesPlain + { $$ = functionClauseList_prepend ($2, $1); } + +functionClause + : globalsClause { $$ = functionClause_createGlobals ($1); } + | modifiesClause { $$ = functionClause_createModifies ($1); } + | nomodsClause { $$ = functionClause_createModifies ($1); } + | stateClause { $$ = functionClause_createState ($1); } + | conditionClause { $$ = $1; } + | warnClause { $$ = functionClause_createWarn ($1); } + +functionClausePlain + : globalsClausePlain { $$ = functionClause_createGlobals ($1); } + | modifiesClausePlain { $$ = functionClause_createModifies ($1); } + | nomodsClause { $$ = functionClause_createModifies ($1); } + | stateClausePlain { $$ = functionClause_createState ($1); } + | conditionClausePlain { $$ = $1; } + | warnClausePlain { $$ = functionClause_createWarn ($1); } + +globalsClause + : globalsClausePlain QENDMACRO { $$ = $1; } + +globalsClausePlain + : QGLOBALS { setProcessingGlobalsList (); } + globIdList optSemi + { + unsetProcessingGlobals (); + $$ = globalsClause_create ($1, $3); + } + +nomodsClause + : QNOMODS { $$ = modifiesClause_createNoMods ($1); } -/*: id { $$ = unentry_getSref($1); checkModifiesId ($1); } -| NEW_INDENTIFIER { $$ = fixModifiesId ($1)} */ +modifiesClause + : modifiesClausePlain QENDMACRO { $$ = $1; } + +modifiesClausePlain + : QMODIFIES + { + context_setProtectVars (); enterParamsTemp (); + sRef_setGlobalScopeSafe (); + } + locModifies + { + exitParamsTemp (); + sRef_clearGlobalScopeSafe (); + context_releaseVars (); + $$ = modifiesClause_create ($1, $3); + } -/*end*/ +flagSpec + : flagId + { $$ = flagSpec_createPlain ($1); } + | flagId TBAR flagSpec + { $$ = flagSpec_createOr ($1, $3); } +flagId + : NEW_IDENTIFIER -optPlainGlobMods - : { setProcessingGlobMods (); } optPlainGlobModsRest - { clearProcessingGlobMods (); } +optWarnClause + : warnClause + | /* empty */ { $$ = warnClause_undefined; } -optGlobModsRest - : optGlobModsAux - | specialClauses optGlobModsAux +warnClause + : warnClausePlain QENDMACRO { $$ = $1; } -optPlainGlobModsRest - : optPlainGlobModsAux - | specialClauses optPlainGlobModsAux +warnClausePlain + : QWARN flagSpec cconstantExpr + { + llassert (exprNode_knownStringValue ($3)); + $$ = warnClause_create ($1, $2, cstring_copy (multiVal_forceString (exprNode_getValue ($3)))); + exprNode_free ($3); + } + | QWARN flagSpec + { $$ = warnClause_create ($1, $2, cstring_undefined); } -specialClauses - : specialClause - | specialClause specialClauses - globIdList - : globIdListExpr { ; } - | globIdList TCOMMA globIdListExpr { ; } + : globIdListExpr { $$ = globSet_single ($1); } + | globIdList TCOMMA globIdListExpr { $$ = globSet_insert ($1, $3); } globIdListExpr - : optGlobQuals globId { globListAdd ($2, $1); } + : optGlobQuals globId { $$ = clabstract_createGlobal ($2, $1); } + +optGlobQuals + : /* empty */ { $$ = qualList_undefined; } + | globQual optGlobQuals { $$ = qualList_add ($2, $1); } globId : id { $$ = uentry_getSref ($1); } - | NEW_IDENTIFIER { $$ = globListUnrecognized ($1); } + | NEW_IDENTIFIER { $$ = clabstract_unrecognizedGlobal ($1); } + | initializer { $$ = clabstract_checkGlobal ($1); } globQual : QUNDEF { $$ = qual_createUndef (); } @@ -530,127 +705,22 @@ globQual | QIN { $$ = qual_createIn (); } | QPARTIAL { $$ = qual_createPartial (); } -optGlobQuals - : /* empty */ { $$ = qualList_undefined; } - | globQual optGlobQuals { $$ = qualList_add ($2, $1); } - -optGlobModsAux - : QGLOBALS { setProcessingGlobalsList (); } initializerList optSemi - QENDMACRO optMods - { unsetProcessingGlobals (); } - | QGLOBALS { setProcessingGlobalsList (); } globIdList optSemi - QENDMACRO optMods - { unsetProcessingGlobals (); } - | QNOMODS - { setFunctionNoGlobals (); - setFunctionModifies (sRefSet_single (sRef_makeNothing ())); - } - | fcnMods - | /* empty */ - -optPlainGlobModsAux - : QGLOBALS { setProcessingGlobalsList (); } initializerList optSemi - optMods - { unsetProcessingGlobals (); } - | QGLOBALS { setProcessingGlobalsList (); } globIdList optSemi - optMods - { unsetProcessingGlobals (); } - | QNOMODS - { setFunctionNoGlobals (); - setFunctionModifies (sRefSet_single (sRef_makeNothing ())); - } - | fcnPlainMods - | /* empty */ - -optMods - : fcnMods - | /* empty */ - -fcnMods - : QMODIFIES - { - context_setProtectVars (); enterParamsTemp (); - sRef_setGlobalScopeSafe (); - } - locModifies - { - setFunctionModifies ($3); exitParamsTemp (); - sRef_clearGlobalScopeSafe (); - context_releaseVars (); - } - -fcnPlainMods - : QMODIFIES - { - context_setProtectVars (); enterParamsTemp (); - sRef_setGlobalScopeSafe (); - } - locPlainModifies - { - setFunctionModifies ($3); exitParamsTemp (); - sRef_clearGlobalScopeSafe (); - context_releaseVars (); - } - -specialTag +stateTag : QDEFINES | QUSES | QALLOCATES | QSETS | QRELEASES -endStateTag - : QENDMACRO - -endSpecialTag - : QENDMACRO - -stateSpecialClause +conditionTag : QPRECLAUSE | QPOSTCLAUSE -specialClauseType - : QONLY { $$ = SP_ISONLY; } - | QOBSERVER { $$ = SP_ISOBSERVER; } - | QEXPOSED { $$ = SP_ISEXPOSED; } - | QDEPENDENT { $$ = SP_ISDEPENDENT; } - | QOWNED { $$ = SP_ISOWNED; } - | QSHARED { $$ = SP_ISSHARED; } - | QISNULL { $$ = SP_ISNULL; } - | QNOTNULL { $$ = SP_ISNOTNULL; } - -specialClause - : specialTag NotType - { - context_setProtectVars (); - enterParamsTemp (); - sRef_setGlobalScopeSafe (); - } - specClauseList optSemi endSpecialTag IsType - { - setFunctionSpecialClause ($1, $4, $6); - exitParamsTemp (); - sRef_clearGlobalScopeSafe (); - context_releaseVars (); - } - | stateSpecialClause NotType specialClauseType - { - context_setProtectVars (); - enterParamsTemp (); - sRef_setGlobalScopeSafe (); - } - specClauseList optSemi endStateTag IsType - { - setFunctionStateSpecialClause ($1, $3, $5, $7); - exitParamsTemp (); - sRef_clearGlobalScopeSafe (); - context_releaseVars (); - } - fcnDefHdrAux : namedDecl { - qtype qint = qtype_create (ctype_int); + /**!!! deal with fred; fred (int); declarations! **/ + qtype qint = qtype_create (ctype_int); $$ = idDecl_fixBase ($1, qint); qtype_free (qint); } @@ -664,30 +734,26 @@ fcnBody exprNode_checkFunctionBody ($3); $$ = $3; context_exitInner ($3); } - | initializerList - { doneParams (); context_enterInnerContext (); } + | { context_enterOldStyleScope (); } initializerList + { oldStyleDoneParams (); context_enterInnerContext (); } compoundStmt { - context_exitInner ($3); - exprNode_checkFunctionBody ($3); - $$ = $3; /* old style */ + exprNode_checkFunctionBody ($4); + $$ = $4; /* oldstyle */ + context_exitInner ($4); } fcnDef : fcnDefHdr fcnBody { context_setFunctionDefined (exprNode_loc ($2)); - /* exprNode_checkFunction (context_getHeader (), $2); */ + exprNode_checkFunction (context_getHeader (), $2); /* DRL 8 8 2000 */ context_exitFunction (); } locModifies - : modList optSemi QENDMACRO { $$ = $1; } - | optSemi QENDMACRO { $$ = sRefSet_new (); } - -locPlainModifies : modList optSemi { $$ = $1; } | optSemi { $$ = sRefSet_new (); } @@ -703,8 +769,8 @@ modListExpr mExpr - : modListExpr { $$ = $1; } - | CCONSTANT { $$ = sRef_makeUnknown (); /* sRef_makeConstant ($1); ? */ } + : modListExpr { $$ = $1; } + | cconstantExpr { $$ = sRef_makeUnknown (); /* sRef_makeConstant ($1); ? */ } /* arithmetic? */ modList @@ -713,9 +779,9 @@ modList specClauseListExpr : id - { $$ = checkSpecClausesId ($1); } + { $$ = checkStateClausesId ($1); } | NEW_IDENTIFIER - { $$ = fixSpecClausesId ($1); } + { $$ = fixStateClausesId ($1); } | specClauseListExpr TLSQBR TRSQBR { $$ = sRef_makeAnyArrayFetch ($1); } | specClauseListExpr TLSQBR mExpr TRSQBR { $$ = sRef_makeAnyArrayFetch ($1); } | TMULT specClauseListExpr { $$ = sRef_constructPointer ($2); } @@ -725,6 +791,10 @@ specClauseListExpr | specClauseListExpr ARROW_OP newId { cstring_markOwned ($3); $$ = sRef_makeArrow ($1, $3); } +optSpecClauseList + : /* empty */ { $$ = sRefSet_undefined } + | specClauseList + specClauseList : specClauseListExpr { if (sRef_isValid ($1)) { $$ = sRefSet_single ($1); } @@ -744,10 +814,13 @@ specClauseList primaryExpr : id { $$ = exprNode_fromIdentifier ($1); } | NEW_IDENTIFIER { $$ = exprNode_fromUIO ($1); } - | CCONSTANT { $$ = $1; } + | cconstantExpr | TLPAREN expr TRPAREN { $$ = exprNode_addParens ($1, $2); } | TYPE_NAME_OR_ID { $$ = exprNode_fromIdentifier (coerceId ($1)); } | QEXTENSION { $$ = exprNode_makeError (); } + | TLPAREN { exprChecks_inCompoundStatementExpression (); } + compoundStmt TRPAREN + { exprChecks_leaveCompoundStatementExpression (); $$ = exprNode_compoundStatementExpression ($1, $3); } postfixExpr : primaryExpr @@ -755,11 +828,13 @@ postfixExpr | postfixExpr TLPAREN TRPAREN { $$ = exprNode_functionCall ($1, exprNodeList_new ()); } | postfixExpr TLPAREN argumentExprList TRPAREN { $$ = exprNode_functionCall ($1, $3); } | VA_ARG TLPAREN assignExpr TCOMMA typeExpression TRPAREN { $$ = exprNode_vaArg ($1, $3, $5); } - | postfixExpr NotType TDOT newId IsType { $$ = exprNode_fieldAccess ($1, $4); } - | postfixExpr NotType ARROW_OP newId IsType { $$ = exprNode_arrowAccess ($1, $4); } + | postfixExpr NotType TDOT newId IsType { $$ = exprNode_fieldAccess ($1, $3, $4); } + | postfixExpr NotType ARROW_OP newId IsType { $$ = exprNode_arrowAccess ($1, $3, $4); } | postfixExpr INC_OP { $$ = exprNode_postOp ($1, $2); } | postfixExpr DEC_OP { $$ = exprNode_postOp ($1, $2); } - + | TLPAREN typeExpression TRPAREN TLBRACE typeInitializerList optComma TRBRACE + { /* added for C99 */ $$ = exprNode_undefined; /*@i87 no checking */ } + argumentExprList : assignExpr { $$ = exprNodeList_singleton ($1); } | argumentExprList TCOMMA assignExpr { $$ = exprNodeList_push ($1, $3); } @@ -778,27 +853,30 @@ unaryExpr | offsetofExpr { $$ = $1; } fieldDesignator - : fieldDesignator TDOT newId { $$ = cstringList_add ($1, $3); } - | newId { $$ = cstringList_single ($1); } + : fieldDesignator TDOT newId { $$ = cstringList_add ($1, $3); lltok_free ($2); } + | fieldDesignator TLSQBR expr TRSQBR { $$ = $1; lltok_free2 ($2, $4); } + /* evans 2002-07-02: offsetof designators can use array indexes */ + | newId { $$ = cstringList_single ($1); } offsetofExpr : COFFSETOF IsType TLPAREN typeExpression NotType TCOMMA fieldDesignator TRPAREN IsType - { $$ = exprNode_offsetof ($4, $7); } + { $$ = exprNode_offsetof ($4, $7); + lltok_free3 ($1, $3, $6); lltok_free ($8); } sizeofExpr : IsType { context_setProtectVars (); } sizeofExprAux { context_sizeofReleaseVars (); $$ = $3; } sizeofExprAux - : CSIZEOF TLPAREN typeExpression TRPAREN { $$ = exprNode_sizeofType ($3); } - | CSIZEOF unaryExpr { $$ = exprNode_sizeofExpr ($2); } - | CALIGNOF TLPAREN typeExpression TRPAREN { $$ = exprNode_alignofType ($3); } - | CALIGNOF unaryExpr { $$ = exprNode_alignofExpr ($2); } + : CSIZEOF TLPAREN typeExpression TRPAREN { $$ = exprNode_sizeofType ($3); lltok_free3 ($1, $2, $4); } + | CSIZEOF unaryExpr { $$ = exprNode_sizeofExpr ($2); lltok_free ($1); } + | CALIGNOF TLPAREN typeExpression TRPAREN { $$ = exprNode_alignofType ($3); lltok_free3 ($1, $2, $4); } + | CALIGNOF unaryExpr { $$ = exprNode_alignofExpr ($2); lltok_free ($1); } castExpr : unaryExpr | TLPAREN typeExpression TRPAREN castExpr - { $$ = exprNode_cast ($1, $4, $2); } + { $$ = exprNode_cast ($1, $4, $2); lltok_free ($3); } timesExpr : castExpr @@ -905,8 +983,9 @@ initializer | typeDecl { $$ = exprNode_makeError (); } instanceDecl - : completeTypeSpecifier IsType TSEMI { $$ = exprNode_makeError (); } - /* + : completeTypeSpecifier IsType TSEMI + { $$ = exprNode_makeError (); } + /* ** This causes r/r conflicts with function definitions. ** Instead we need to snarf one first. (gack) ** @@ -920,25 +999,35 @@ instanceDecl */ | completeTypeSpecifier NotType namedDecl NotType { - setProcessingVars ($1); - processNamedDecl ($3); } - IsType optDeclarators TSEMI IsType { unsetProcessingVars (); $$ = $7; } + setProcessingVars ($1); + processNamedDecl ($3); + } + IsType optDeclarators TSEMI IsType + { + unsetProcessingVars (); + $$ = exprNode_makeEmptyInitialization ($3); + DPRINTF (("Empty initialization: %s", exprNode_unparse ($$))); + } | completeTypeSpecifier NotType namedDecl NotType TASSIGN - { setProcessingVars ($1); processNamedDecl ($3); - } + { setProcessingVars ($1); processNamedDecl ($3); } IsType init optDeclarators TSEMI IsType { $$ = exprNode_concat ($9, exprNode_makeInitialization ($3, $8)); unsetProcessingVars (); } + namedInitializer - : namedDecl NotType { processNamedDecl ($1); $$ = exprNode_makeError (); } + : namedDecl NotType + { + processNamedDecl ($1); + $$ = exprNode_makeEmptyInitialization ($1); + } | namedDecl NotType TASSIGN { processNamedDecl ($1); } IsType init { $$ = exprNode_makeInitialization ($1, $6); } - typeDecl : CTYPEDEF completeTypeSpecifier { setProcessingTypedef ($2); } - NotType namedInitializerList IsType TSEMI { unsetProcessingTypedef (); } + NotType namedInitializerList IsType optWarnClause TSEMI + { clabstract_declareType ($5, $7); } | CTYPEDEF completeTypeSpecifier IsType TSEMI { /* in the ANSI grammar, semantics unclear */ } | CTYPEDEF namedInitializerList IsType TSEMI { /* in the ANSI grammar, semantics unclear */ } @@ -949,21 +1038,38 @@ PushType : { g_expectingTypeName = TRUE; context_pushLoc (); } namedInitializerList - : namedInitializerListAux IsType { ; } + : namedInitializerListAux IsType { $$ = $1; } namedInitializerListAux - : namedInitializer { ; } - | namedInitializerList TCOMMA NotType namedInitializer { ; } + : namedInitializer { $$ = exprNodeList_singleton ($1); } + | namedInitializerList TCOMMA NotType namedInitializer { $$ = exprNodeList_push ($1, $4); } optDeclarators : /* empty */ { $$ = exprNode_makeError (); } | optDeclarators TCOMMA NotType namedInitializer { $$ = exprNode_concat ($1, $4); } init - : assignExpr { $$ = $1; } - | TLBRACE initList TRBRACE { $$ = exprNode_makeInitBlock ($1, $2); } - | TLBRACE initList TCOMMA TRBRACE { $$ = exprNode_makeInitBlock ($1, $2); } + : assignExpr + | TLBRACE initList TRBRACE { $$ = exprNode_makeInitBlock ($1, $2); lltok_free ($3); } + | TLBRACE initList TCOMMA TRBRACE { $$ = exprNode_makeInitBlock ($1, $2); lltok_free2 ($3, $4); } + | designation init { $$ = exprNode_undefined; } + +/* +** Splint parses these (added in ISO C99), but no checking yet... +*/ + +designation + : designatorList TASSIGN { $$ = $1; } + | newId TCOLON { $$ = exprNode_undefined; + /* gcc extension, obsolete since 2.5 */ } +designatorList + : designator { $$ = exprNode_undefined; } + | designatorList designator { $$ = exprNode_undefined; } + +designator + : TLSQBR constantExpr TRSQBR { $$ = exprNode_undefined; } + | TDOT newId { $$ = exprNode_undefined; } initList : init @@ -983,56 +1089,137 @@ storageSpecifier | QAUTO { $$ = qual_createAuto (); } | QREGISTER { $$ = qual_createRegister (); } -typeQualifier - : QCONST IsType { $$ = qual_createConst (); } - | QVOLATILE IsType { $$ = qual_createVolatile (); } - | QOUT IsType { $$ = qual_createOut (); } - | QIN IsType { $$ = qual_createIn (); } - | QPARTIAL IsType { $$ = qual_createPartial (); } - | QSPECIAL IsType { $$ = qual_createSpecial (); } - | QOWNED IsType { $$ = qual_createOwned (); } - | QDEPENDENT IsType { $$ = qual_createDependent (); } - | QYIELD IsType { $$ = qual_createYield (); } - | QTEMP IsType { $$ = qual_createTemp (); } - | QONLY IsType { $$ = qual_createOnly (); } - | QKEEP IsType { $$ = qual_createKeep (); } - | QKEPT IsType { $$ = qual_createKept (); } - | QSHARED IsType { $$ = qual_createShared (); } - | QUNIQUE IsType { $$ = qual_createUnique (); } - | QEXITS IsType { $$ = qual_createExits (); } - | QMAYEXIT IsType { $$ = qual_createMayExit (); } - | QTRUEEXIT IsType { $$ = qual_createTrueExit (); } - | QFALSEEXIT IsType { $$ = qual_createFalseExit (); } - | QNEVEREXIT IsType { $$ = qual_createNeverExit (); } - | QNULL IsType { $$ = qual_createNull (); } - | QRELNULL IsType { $$ = qual_createRelNull (); } - | QRETURNED IsType { $$ = qual_createReturned (); } - | QEXPOSED IsType { $$ = qual_createExposed (); } - | QOBSERVER IsType { $$ = qual_createObserver (); } - | QCHECKED IsType { $$ = qual_createChecked (); } - | QCHECKMOD IsType { $$ = qual_createCheckMod (); } - | QUNCHECKED IsType { $$ = qual_createUnchecked (); } - | QCHECKEDSTRICT IsType { $$ = qual_createCheckedStrict (); } - | QTRUENULL IsType { $$ = qual_createTrueNull (); } - | QFALSENULL IsType { $$ = qual_createFalseNull (); } - | QUNUSED IsType { $$ = qual_createUnused (); } - | QEXTERNAL IsType { $$ = qual_createExternal (); } - | QSEF IsType { $$ = qual_createSef (); } - | QABSTRACT IsType { $$ = qual_createAbstract (); } - | QCONCRETE IsType { $$ = qual_createConcrete (); } - | QMUTABLE IsType { $$ = qual_createMutable (); } - | QIMMUTABLE IsType { $$ = qual_createImmutable (); } - | QNOTNULL IsType { $$ = qual_createNotNull (); } - | QREFCOUNTED IsType { $$ = qual_createRefCounted (); } - | QREFS IsType { $$ = qual_createRefs (); } - | QKILLREF IsType { $$ = qual_createKillRef (); } - | QRELDEF IsType { $$ = qual_createRelDef (); } - | QNEWREF IsType { $$ = qual_createNewRef (); } - | QTEMPREF IsType { $$ = qual_createTempRef (); } - | QNULLTERMINATED IsType { $$ = qual_createNullTerminated (); } - -/* | QSETBUFFERSIZE IsType { $$ = qual_createSetBufferSize (); } */ +stateClause + : stateClausePlain QENDMACRO { $$ = $1; } + +stateClausePlain + : stateTag NotType + { + context_setProtectVars (); + enterParamsTemp (); + sRef_setGlobalScopeSafe (); + } + specClauseList optSemi IsType + { + exitParamsTemp (); + sRef_clearGlobalScopeSafe (); + context_releaseVars (); + $$ = stateClause_createPlain ($1, $4); + } +conditionClause + : conditionClausePlain QENDMACRO { $$ = $1; } + +startConditionClause +: conditionTag NotType { $$ = $1; context_enterFunctionHeader (); } + +conditionClausePlain + : startConditionClause stateQualifier + { + context_exitFunctionHeader (); + context_setProtectVars (); + enterParamsTemp (); + sRef_setGlobalScopeSafe (); + } + optSpecClauseList optSemi IsType + { + exitParamsTemp (); + sRef_clearGlobalScopeSafe (); + context_releaseVars (); + $$ = functionClause_createState (stateClause_create ($1, $2, $4)); + } + | startConditionClause + { + context_setProtectVars (); + enterParamsTemp (); + sRef_setGlobalScopeSafe (); + } + functionConstraint optSemi IsType + { + context_exitFunctionHeader (); + exitParamsTemp (); + sRef_clearGlobalScopeSafe (); + context_releaseVars (); + DPRINTF (("done optGlobBufConstraintsAux\n")); + + if (lltok_isEnsures ($1)) + { + $$ = functionClause_createEnsures ($3); + } + else if (lltok_isRequires ($1)) + { + $$ = functionClause_createRequires ($3); + } + else + { + BADBRANCH; + } + + DPRINTF (("FunctionclauseS: %s", functionClause_unparse ($$))); + } + +functionConstraint + : BufConstraintList { $$ = functionConstraint_createBufferConstraint ($1); } + | metaStateConstraint { $$ = functionConstraint_createMetaStateConstraint ($1); DPRINTF (("Made constraint: %s", functionConstraint_unparse ($$))); } + +exitsQualifier + : QEXITS { $$ = qual_createExits (); } + | QMAYEXIT { $$ = qual_createMayExit (); } + | QTRUEEXIT { $$ = qual_createTrueExit (); } + | QFALSEEXIT { $$ = qual_createFalseExit (); } + | QNEVEREXIT { $$ = qual_createNeverExit (); } + +checkQualifier + : QCHECKED { $$ = qual_createChecked (); } + | QCHECKMOD { $$ = qual_createCheckMod (); } + | QUNCHECKED { $$ = qual_createUnchecked (); } + | QCHECKEDSTRICT { $$ = qual_createCheckedStrict (); } + +stateQualifier + : QOWNED { $$ = qual_createOwned (); } + | QDEPENDENT { $$ = qual_createDependent (); } + | QYIELD { $$ = qual_createYield (); } + | QTEMP { $$ = qual_createTemp (); } + | QONLY { $$ = qual_createOnly (); } + | QKEEP { $$ = qual_createKeep (); } + | QKEPT { $$ = qual_createKept (); } + | QSHARED { $$ = qual_createShared (); } + | QUNIQUE { $$ = qual_createUnique (); } + | QNULL { $$ = qual_createNull (); } + | QISNULL { $$ = qual_createIsNull (); } + | QRELNULL { $$ = qual_createRelNull (); } + | QNOTNULL { $$ = qual_createNotNull (); } + | QEXPOSED { $$ = qual_createExposed (); } + | QOBSERVER { $$ = qual_createObserver (); } + | QNULLTERMINATED { $$ = qual_createNullTerminated (); } + | CANNOTATION { $$ = qual_createMetaState ($1); } + + +paramQualifier + : QRETURNED { $$ = qual_createReturned (); } + | QSEF { $$ = qual_createSef (); } + +visibilityQualifier + : QUNUSED { $$ = qual_createUnused (); } + | QEXTERNAL { $$ = qual_createExternal (); } + +returnQualifier + : QTRUENULL { $$ = qual_createTrueNull (); } + | QFALSENULL { $$ = qual_createFalseNull (); } + +typedefQualifier + : QABSTRACT { $$ = qual_createAbstract (); } + | QCONCRETE { $$ = qual_createConcrete (); } + | QMUTABLE { $$ = qual_createMutable (); } + | QIMMUTABLE { $$ = qual_createImmutable (); } + +refcountQualifier + : QREFCOUNTED { $$ = qual_createRefCounted (); } + | QREFS { $$ = qual_createRefs (); } + | QKILLREF { $$ = qual_createKillRef (); } + | QRELDEF { $$ = qual_createRelDef (); } + | QNEWREF { $$ = qual_createNewRef (); } + | QTEMPREF { $$ = qual_createTempRef (); } typeModifier : QSHORT { $$ = qual_createShort (); } @@ -1040,6 +1227,30 @@ typeModifier | QSIGNED { $$ = qual_createSigned (); } | QUNSIGNED { $$ = qual_createUnsigned (); } +definedQualifier + : QOUT { $$ = qual_createOut (); } + | QIN { $$ = qual_createIn (); } + | QPARTIAL { $$ = qual_createPartial (); } + | QSPECIAL { $$ = qual_createSpecial (); } + +typeQualifier + : QCONST IsType { $$ = qual_createConst (); } + | QVOLATILE IsType { $$ = qual_createVolatile (); } + | QRESTRICT IsType { $$ = qual_createRestrict (); } + | definedQualifier IsType { $$ = $1; } + | stateQualifier IsType { $$ = $1; } + | exitsQualifier IsType { $$ = $1; } + | paramQualifier IsType { $$ = $1; } + | checkQualifier IsType { $$ = $1; } + | returnQualifier IsType { $$ = $1; } + | visibilityQualifier IsType { $$ = $1; } + | typedefQualifier IsType { $$ = $1; } + | refcountQualifier IsType { $$ = $1; } + +/* +** This is copied into the mtgrammar! +*/ + typeSpecifier : CGCHAR NotType | CINT NotType @@ -1047,14 +1258,14 @@ typeSpecifier | CGFLOAT NotType | CDOUBLE NotType | CVOID NotType - | QANYTYPE NotType { $$ = ctype_unknown; } + | QANYTYPE NotType { $$ = ctype_makeAnytype (); } | QINTEGRALTYPE NotType { $$ = ctype_anyintegral; } | QUNSIGNEDINTEGRALTYPE NotType { $$ = ctype_unsignedintegral; } | QSIGNEDINTEGRALTYPE NotType { $$ = ctype_signedintegral; } | typeName NotType | suSpc NotType | enumSpc NotType - | typeModifier NotType { $$ = ctype_fromQual ($1); } + | typeModifier NotType { $$ = ctype_fromQual ($1); } completeType : IsType completeTypeSpecifier IsType @@ -1079,12 +1290,19 @@ optCompleteType : /* empty */ { $$ = qtype_unknown (); } | completeTypeSpecifier { $$ = $1; } + +optStructInvariant +: /* empty */ { $$ = constraintList_undefined; } +/* drl commenting before a CVS commit + | QINVARIANT BufConstraintList QENDMACRO { $$ = $2 } +*/ suSpc : NotType CSTRUCT newId IsType TLBRACE { sRef_setGlobalScopeSafe (); } CreateStructInnerScope - structDeclList DeleteStructInnerScope { sRef_clearGlobalScopeSafe (); } + structDeclList DeleteStructInnerScope { sRef_clearGlobalScopeSafe (); } TRBRACE - { $$ = declareStruct ($3, $8); } + optStructInvariant + { ctype ct; ct = declareStruct ($3, $8); setGlobalStructInfo(ct, $12); $$ = ct; } | NotType CUNION newId IsType TLBRACE { sRef_setGlobalScopeSafe (); } CreateStructInnerScope structDeclList DeleteStructInnerScope { sRef_clearGlobalScopeSafe (); } @@ -1099,17 +1317,17 @@ suSpc structDeclList DeleteStructInnerScope { sRef_clearGlobalScopeSafe (); } TRBRACE { $$ = declareUnnamedStruct ($7); } - | NotType CUNION IsType TLBRACE { sRef_setGlobalScopeSafe (); } - CreateStructInnerScope - structDeclList DeleteStructInnerScope { sRef_clearGlobalScopeSafe (); } + | NotType CUNION IsType TLBRACE { sRef_setGlobalScopeSafe (); } + CreateStructInnerScope structDeclList DeleteStructInnerScope + { sRef_clearGlobalScopeSafe (); } TRBRACE { $$ = declareUnnamedUnion ($7); } | NotType CSTRUCT IsType TLBRACE TRBRACE { $$ = ctype_createUnnamedStruct (uentryList_new ()); } - | NotType CUNION IsType TLBRACE TRBRACE + | NotType CUNION IsType TLBRACE TRBRACE { $$ = ctype_createUnnamedUnion (uentryList_new ()); } | NotType CSTRUCT newId NotType { $$ = handleStruct ($3); } - | NotType CUNION newId NotType { $$ = handleUnion ($3); } + | NotType CUNION newId NotType { $$ = handleUnion ($3); } NotType : { g_expectingTypeName = FALSE; } @@ -1169,9 +1387,8 @@ optNamedDecl | pointers TYPE_NAME { qtype qt = qtype_unknown (); - qtype_adjustPointers ($1, qt); - $$ = idDecl_create (cstring_copy (LastIdentifier ()), qt); + $$ = idDecl_create (cstring_copy (cscanner_observeLastIdentifier ()), qt); } | pointers optNamedDecl { $$ = $2; qtype_adjustPointers ($1, idDecl_getTyp ($$)); } @@ -1186,18 +1403,19 @@ genericParamList | NotType paramIdList { $$ = handleParamIdList ($2); } innerMods - : QCONST { /* ignored for now */; } - | QVOLATILE { ; } + : QCONST { $$ = qual_createConst (); } + | QRESTRICT { $$ = qual_createRestrict (); } + | QVOLATILE { $$ = qual_createVolatile (); } innerModsList - : innerMods { ; } - | innerModsList innerMods { ; } + : innerMods { $$ = qualList_single ($1); } + | innerModsList innerMods { $$ = qualList_add ($1, $2); } pointers - : TMULT { $$ = 1; } - | TMULT innerModsList { $$ = 1; } - | TMULT pointers { $$ = 1 + $2; } - | TMULT innerModsList pointers { $$ = 1 + $3; } + : TMULT { $$ = pointers_create ($1); } + | TMULT innerModsList { $$ = pointers_createMods ($1, $2); } + | TMULT pointers { $$ = pointers_extend (pointers_create ($1), $2); } + | TMULT innerModsList pointers { $$ = pointers_extend (pointers_createMods ($1, $2), $3); } paramIdList : idList @@ -1264,9 +1482,9 @@ abstractDeclBase | TLSQBR TRSQBR { $$ = ctype_makeArray (ctype_unknown); } | TLSQBR constantExpr TRSQBR { $$ = ctype_makeFixedArray (ctype_unknown, exprNode_getLongValue ($2)); } - | abstractDeclBase TLSQBR TRSQBR { $$ = ctype_makeArray ($1); } + | abstractDeclBase TLSQBR TRSQBR { $$ = ctype_makeInnerArray ($1); } | abstractDeclBase TLSQBR constantExpr TRSQBR - { $$ = ctype_makeFixedArray ($1, exprNode_getLongValue ($3)); } + { $$ = ctype_makeInnerFixedArray ($1, exprNode_getLongValue ($3)); } | IsType TLPAREN TRPAREN { $$ = ctype_makeFunction (ctype_unknown, uentryList_makeMissingParams ()); } | IsType TLPAREN paramTypeList TRPAREN @@ -1288,23 +1506,6 @@ stmt | iterationStmt | iterStmt | jumpStmt -/* | tst1 */ - | lclintassertion {$$ = $1; printf ("Doing stmt lclintassertion\n"); } - - -lclintassertion - : QSETBUFFERSIZE id CCONSTANT QENDMACRO { printf(" QSETBUFFERSIZE id CCONSTANT HEllo World\n"); uentry_setBufferSize($2, $3); $$ = exprNode_createTok ($4); - } - | QSETSTRINGLENGTH id CCONSTANT QENDMACRO { printf(" QSETSTRINGLENGTH id CCONSTANT HEllo World\n"); uentry_setStringLength($2, $3); $$ = exprNode_createTok ($4); - } - | QTESTINRANGE id CCONSTANT QENDMACRO {printf(" QTESTINRANGE\n"); uentry_testInRange($2, $3); $$ = exprNode_createTok ($4); - } - -/* | QSETBUFFERSIZE id id {$$ = $2; printf(" QSETBUFFERSIZE id id HEllo World\n");} */ - -tst1 -: TCOLON newId { $$ = exprNode_labelMarker ($2); } - iterBody @@ -1346,7 +1547,7 @@ iterDefStmt : labeledStmt | caseStmt | defaultStmt - | openScope initializerList { $$ = $2; } + | openScope initializerList { $$ = $1; DPRINTF (("def stmt: %s", exprNode_unparse ($$))); } | openScope | closeScope | expressionStmt @@ -1358,9 +1559,9 @@ iterDefStmt | error { $$ = exprNode_makeError (); } iterSelectionStmt - : ifPred iterDefStmt + : ifPred { exprNode_checkIfPred ($1); } iterDefStmt { /* don't: context_exitTrueClause ($1, $2); */ - $$ = exprNode_if ($1, $2); + $$ = exprNode_if ($1, $3); } openScope @@ -1390,20 +1591,28 @@ labeledStmt : newId TCOLON { $$ = exprNode_labelMarker ($1); } | QNOTREACHED stmt { $$ = exprNode_notReached ($2); } +/* +** We allow more than one QFALLTHROUGH token to support mixed lint/splint markers. +*/ + +optExtraFallThroughs + : /* empty */ { ; } + | QFALLTHROUGH optExtraFallThroughs { ; } + /* Note that we can semantically check that the object to the case is indeed constant. In this case, we may not want to go through this effort */ caseStmt : CASE constantExpr { context_enterCaseClause ($2); } TCOLON { $$ = exprNode_caseMarker ($2, FALSE); } - | QFALLTHROUGH CASE constantExpr { context_enterCaseClause ($3); } - TCOLON { $$ = exprNode_caseMarker ($3, TRUE); } + | QFALLTHROUGH optExtraFallThroughs CASE constantExpr { context_enterCaseClause ($4); } + TCOLON { $$ = exprNode_caseMarker ($4, TRUE); } defaultStmt : DEFAULT { context_enterCaseClause (exprNode_undefined); } TCOLON { $$ = exprNode_defaultMarker ($1, FALSE); } - | QFALLTHROUGH DEFAULT { context_enterCaseClause (exprNode_undefined); } - TCOLON { $$ = exprNode_defaultMarker ($2, TRUE); } + | QFALLTHROUGH optExtraFallThroughs DEFAULT { context_enterCaseClause (exprNode_undefined); } + TCOLON { $$ = exprNode_defaultMarker ($3, TRUE); } compoundStmt : TLPAREN compoundStmt TRPAREN { $$ = $2; } @@ -1444,7 +1653,6 @@ compoundStmtRest lltok_getLoc ($3))); } - compoundStmtAux : TLBRACE compoundStmtRest { $$ = exprNode_makeBlock ($2); } @@ -1467,6 +1675,14 @@ initializerList : initializer { $$ = $1; } | initializerList initializer { $$ = exprNode_concat ($1, $2); } +typeInitializerList + : typeInitializer { $$ = $1; } + | typeInitializerList TCOMMA typeInitializer { $$ = exprNode_concat ($1, $3); } + +typeInitializer + : assignExpr { $$ = $1; } + | TLBRACE typeInitializerList optComma TRBRACE { $$ = $2; } + stmtList : stmt { $$ = $1; } | stmtList stmt { $$ = exprNode_concat ($1, $2); } @@ -1482,7 +1698,12 @@ expressionStmtErr ifPred : CIF TLPAREN expr TRPAREN - { $$ = $3; exprNode_produceGuards ($3); context_enterTrueClause ($3); } + { + exprNode_produceGuards ($3); context_enterTrueClause ($3); + exprNode_checkIfPred ($3); + $$ = $3; + } + /* ** not ANSI: | CIF TLPAREN compoundStmt TRPAREN ** { $$ = $3; context_enterTrueClause (); } @@ -1494,7 +1715,7 @@ selectionStmt context_exitTrueClause ($1, $2); $$ = exprNode_if ($1, $2); } - | ifPred stmt CELSE { context_enterFalseClause ($1); } stmt + | ifPred stmt CELSE { context_enterFalseClause ($1); } stmt { context_exitClause ($1, $2, $5); $$ = exprNode_ifelse ($1, $2, $5); @@ -1536,7 +1757,7 @@ iterArgExpr } else { - $$ = exprNode_iterNewId (cstring_copy (LastIdentifier ())); + $$ = exprNode_iterNewId (cstring_copy (cscanner_observeLastIdentifier ())); } } | NEW_IDENTIFIER { $$ = exprNode_iterNewId ($1); } @@ -1545,8 +1766,12 @@ iterArgExpr ** everything is the same, EXCEPT it cannot be a NEW_IDENTIFIER */ +cconstantExpr + : CCONSTANT + | cconstantExpr CCONSTANT { $$ = exprNode_combineLiterals ($1, $2); } + primaryIterExpr - : CCONSTANT + : cconstantExpr | TLPAREN expr TRPAREN { $$ = exprNode_addParens ($1, $2); } postfixIterExpr @@ -1556,8 +1781,8 @@ postfixIterExpr | postfixExpr TLPAREN argumentExprList TRPAREN { $$ = exprNode_functionCall ($1, $3); } | VA_ARG TLPAREN assignExpr TCOMMA typeExpression TRPAREN { $$ = exprNode_vaArg ($1, $3, $5); } - | postfixExpr NotType TDOT newId IsType { $$ = exprNode_fieldAccess ($1, $4); } - | postfixExpr NotType ARROW_OP newId IsType { $$ = exprNode_arrowAccess ($1, $4); } + | postfixExpr NotType TDOT newId IsType { $$ = exprNode_fieldAccess ($1, $3, $4); } + | postfixExpr NotType ARROW_OP newId IsType { $$ = exprNode_arrowAccess ($1, $3, $4); } | postfixExpr INC_OP { $$ = exprNode_postOp ($1, $2); } | postfixExpr DEC_OP { $$ = exprNode_postOp ($1, $2); } @@ -1686,6 +1911,10 @@ optSemi : | TSEMI { ; } +optComma + : + | TCOMMA { ; } + id : IDENTIFIER @@ -1699,12 +1928,14 @@ newId typeName : TYPE_NAME | TYPE_NAME_OR_ID { $$ = ctype_unknown; } + | CTYPEOF TLPAREN expr TRPAREN { $$ = exprNode_getType ($3); exprNode_free ($3); } + | CTYPEOF TLPAREN typeExpression TRPAREN { $$ = qtype_getType ($3); } %% -/*@-redecl@*/ +/*@-redecl@*/ /*@-namechecks@*/ extern char *yytext; -/*@=redecl@*/ +/*@=redecl@*/ /*@=namechecks@*/ # include "bison.reset" @@ -1727,7 +1958,7 @@ void yyerror (/*@unused@*/ char *s) llerror (FLG_SYNTAX, message ("Macro syntax not parseable: %s", context_inFunctionName ())); - if (context_inMacroUnknown ()) + if (context_inUnknownMacro ()) { if (!givehint) { @@ -1738,7 +1969,8 @@ void yyerror (/*@unused@*/ char *s) } } - swallowMacro (); + cscanner_swallowMacro (); + context_exitAllClausesQuiet (); } else { @@ -1746,30 +1978,12 @@ void yyerror (/*@unused@*/ char *s) } } -void printState (idDecl t) { - cstring id = idDecl_getName (t); - uentry ue = usymtab_lookupSafe (id); - sRef s = uentry_getSref (ue); - - printf("State = %d\n", s->bufinfo.bufstate); -} -/*take this out soon */ -/* void testassert1 (cstring id, icstring cons ) { */ - /* uentry ue =usymtab_lookupSafe (id); */ -/* sRef s = uentry_getSref (ue); */ -/* printf ("Doing testassert1 with setbuffersize\n"); */ -/* printf("State = %d\n", s->bufinfo.bufstate); */ -/* } */ -/* void testassert2 (cstring id) { */ -/* uentry ue =usymtab_lookupSafe (id); */ -/* sRef s = uentry_getSref (ue); */ -/* printf ("Doing testassert2 with setbuffersize\n"); */ -/* printf("State = %d\n", s->bufinfo.bufstate); */ -/* } */ - + + +