21 using namespace clang;
25 return !StmtCheckers.empty() ||
26 !PreObjCMessageCheckers.empty() ||
27 !PostObjCMessageCheckers.empty() ||
28 !PreCallCheckers.empty() ||
29 !PostCallCheckers.empty() ||
30 !LocationCheckers.empty() ||
31 !BindCheckers.empty() ||
32 !EndAnalysisCheckers.empty() ||
33 !EndFunctionCheckers.empty() ||
34 !BranchConditionCheckers.empty() ||
35 !LiveSymbolsCheckers.empty() ||
36 !DeadSymbolsCheckers.empty() ||
37 !RegionChangesCheckers.empty() ||
38 !EvalAssumeCheckers.empty() ||
39 !EvalCallCheckers.empty();
47 I = Events.begin(),
E = Events.end();
I !=
E; ++
I)
48 assert(
I->second.HasDispatcher &&
"No dispatcher registered for an event");
60 unsigned DeclKind = D->
getKind();
63 if (CCI != CachedDeclCheckersMap.end()) {
64 checkers = &(CCI->second);
67 checkers = &CachedDeclCheckersMap[DeclKind];
68 for (
unsigned i = 0, e = DeclCheckers.size(); i != e; ++i) {
69 DeclCheckerInfo &info = DeclCheckers[i];
70 if (info.IsForDeclFn(D))
71 checkers->push_back(info.CheckFn);
77 I = checkers->begin(),
E = checkers->end();
I !=
E; ++
I)
85 for (
unsigned i = 0, e = BodyCheckers.size(); i != e; ++i)
86 BodyCheckers[i](D, mgr, BR);
93 template <
typename CHECK_CTX>
101 typename CHECK_CTX::CheckersTy::const_iterator
102 I = checkCtx.checkers_begin(),
E = checkCtx.checkers_end();
111 for (; I !=
E; ++
I) {
116 CurrSet = (PrevSet == &Tmp1) ? &Tmp2 : &Tmp1;
123 checkCtx.runChecker(*I, B, *NI);
127 if (CurrSet->
empty())
136 struct CheckStmtContext {
139 const CheckersTy &Checkers;
144 CheckersTy::const_iterator checkers_begin() {
return Checkers.begin(); }
145 CheckersTy::const_iterator checkers_end() {
return Checkers.end(); }
147 CheckStmtContext(
bool isPreVisit,
const CheckersTy &checkers,
149 : IsPreVisit(isPreVisit), Checkers(checkers),
S(s), Eng(eng),
150 WasInlined(wasInlined) {}
172 CheckStmtContext
C(isPreVisit, getCachedStmtCheckersFor(S, isPreVisit),
178 struct CheckObjCMessageContext {
179 typedef std::vector<CheckerManager::CheckObjCMessageFunc> CheckersTy;
183 const CheckersTy &Checkers;
187 CheckersTy::const_iterator checkers_begin() {
return Checkers.begin(); }
188 CheckersTy::const_iterator checkers_end() {
return Checkers.end(); }
191 const CheckersTy &checkers,
194 :
Kind(visitKind), WasInlined(wasInlined), Checkers(checkers),
195 Msg(msg), Eng(eng) { }
227 auto &checkers = getObjCMessageCheckers(visitKind);
228 CheckObjCMessageContext
C(visitKind, checkers, msg, Eng, WasInlined);
232 const std::vector<CheckerManager::CheckObjCMessageFunc> &
236 return PreObjCMessageCheckers;
239 return PostObjCMessageCheckers;
241 return ObjCMessageNilCheckers;
243 llvm_unreachable(
"Unknown Kind");
248 struct CheckCallContext {
249 typedef std::vector<CheckerManager::CheckCallFunc> CheckersTy;
250 bool IsPreVisit, WasInlined;
251 const CheckersTy &Checkers;
255 CheckersTy::const_iterator checkers_begin() {
return Checkers.begin(); }
256 CheckersTy::const_iterator checkers_end() {
return Checkers.end(); }
258 CheckCallContext(
bool isPreVisit,
const CheckersTy &checkers,
261 : IsPreVisit(isPreVisit), WasInlined(wasInlined), Checkers(checkers),
262 Call(call), Eng(eng) { }
269 checkFn(*Call.cloneWithState(Pred->
getState()),
C);
281 CheckCallContext
C(isPreVisit,
282 isPreVisit ? PreCallCheckers
284 Call, Eng, WasInlined);
289 struct CheckLocationContext {
290 typedef std::vector<CheckerManager::CheckLocationFunc> CheckersTy;
291 const CheckersTy &Checkers;
298 CheckersTy::const_iterator checkers_begin() {
return Checkers.begin(); }
299 CheckersTy::const_iterator checkers_end() {
return Checkers.end(); }
301 CheckLocationContext(
const CheckersTy &checkers,
302 SVal loc,
bool isLoad,
const Stmt *NodeEx,
305 : Checkers(checkers),
Loc(loc), IsLoad(isLoad), NodeEx(NodeEx),
306 BoundEx(BoundEx), Eng(eng) {}
317 checkFn(
Loc, IsLoad, BoundEx,
C);
326 SVal location,
bool isLoad,
330 CheckLocationContext
C(LocationCheckers, location, isLoad, NodeEx,
336 struct CheckBindContext {
337 typedef std::vector<CheckerManager::CheckBindFunc> CheckersTy;
338 const CheckersTy &Checkers;
345 CheckersTy::const_iterator checkers_begin() {
return Checkers.begin(); }
346 CheckersTy::const_iterator checkers_end() {
return Checkers.end(); }
348 CheckBindContext(
const CheckersTy &checkers,
351 : Checkers(checkers),
Loc(loc), Val(val),
S(s), Eng(eng), PP(pp) {}
358 checkFn(
Loc, Val,
S,
C);
369 CheckBindContext
C(BindCheckers, location, val, S, Eng, PP);
376 for (
unsigned i = 0, e = EndAnalysisCheckers.size(); i != e; ++i)
377 EndAnalysisCheckers[i](G, BR, Eng);
392 for (
unsigned i = 0, e = EndFunctionCheckers.size(); i != e; ++i) {
404 struct CheckBranchConditionContext {
405 typedef std::vector<CheckerManager::CheckBranchConditionFunc> CheckersTy;
406 const CheckersTy &Checkers;
407 const Stmt *Condition;
410 CheckersTy::const_iterator checkers_begin() {
return Checkers.begin(); }
411 CheckersTy::const_iterator checkers_end() {
return Checkers.end(); }
413 CheckBranchConditionContext(
const CheckersTy &checkers,
415 : Checkers(checkers), Condition(Cond), Eng(eng) {}
422 checkFn(Condition,
C);
434 CheckBranchConditionContext
C(BranchConditionCheckers, Condition, Eng);
441 for (
unsigned i = 0, e = LiveSymbolsCheckers.size(); i != e; ++i)
442 LiveSymbolsCheckers[i](state, SymReaper);
446 struct CheckDeadSymbolsContext {
447 typedef std::vector<CheckerManager::CheckDeadSymbolsFunc> CheckersTy;
448 const CheckersTy &Checkers;
454 CheckersTy::const_iterator checkers_begin() {
return Checkers.begin(); }
455 CheckersTy::const_iterator checkers_end() {
return Checkers.end(); }
457 CheckDeadSymbolsContext(
const CheckersTy &checkers,
SymbolReaper &sr,
460 : Checkers(checkers), SR(sr),
S(s), Eng(eng), ProgarmPointKind(K) { }
483 CheckDeadSymbolsContext
C(DeadSymbolsCheckers, SymReaper, S, Eng, K);
489 for (
unsigned i = 0, e = RegionChangesCheckers.size(); i != e; ++i)
490 if (RegionChangesCheckers[i].WantUpdateFn(state))
503 for (
unsigned i = 0, e = RegionChangesCheckers.size(); i != e; ++i) {
508 state = RegionChangesCheckers[i].CheckFn(state, invalidated,
509 ExplicitRegions, Regions, Call);
521 assert((Call !=
nullptr ||
524 "Call must not be NULL when escaping on call");
525 for (
unsigned i = 0, e = PointerEscapeCheckers.size(); i != e; ++i) {
530 State = PointerEscapeCheckers[i](
State, Escaped, Call,
Kind, ETraits);
538 SVal Cond,
bool Assumption) {
539 for (
unsigned i = 0, e = EvalAssumeCheckers.size(); i != e; ++i) {
544 state = EvalAssumeCheckers[i](state, Cond, Assumption);
557 NI = Src.
begin(), NE = Src.
end(); NI != NE; ++NI) {
559 bool anyEvaluated =
false;
566 EI = EvalCallCheckers.begin(), EE = EvalCallCheckers.end();
571 bool evaluated =
false;
576 evaluated = (*EI)(CE,
C);
578 assert(!(evaluated && anyEvaluated)
579 &&
"There are more than one checkers evaluating the call");
602 for (
unsigned i = 0, e = EndOfTranslationUnitCheckers.size(); i != e; ++i)
603 EndOfTranslationUnitCheckers[i](TU, mgr, BR);
608 const char *NL,
const char *Sep) {
610 I = CheckerTags.begin(),
E = CheckerTags.end();
I !=
E; ++
I)
611 I->second->printState(Out, State, NL, Sep);
619 HandlesDeclFunc isForDeclFn) {
620 DeclCheckerInfo info = { checkfn, isForDeclFn };
621 DeclCheckers.push_back(info);
625 BodyCheckers.push_back(checkfn);
633 HandlesStmtFunc isForStmtFn) {
634 StmtCheckerInfo info = { checkfn, isForStmtFn,
true };
635 StmtCheckers.push_back(info);
638 HandlesStmtFunc isForStmtFn) {
639 StmtCheckerInfo info = { checkfn, isForStmtFn,
false };
640 StmtCheckers.push_back(info);
644 PreObjCMessageCheckers.push_back(checkfn);
648 ObjCMessageNilCheckers.push_back(checkfn);
652 PostObjCMessageCheckers.push_back(checkfn);
656 PreCallCheckers.push_back(checkfn);
659 PostCallCheckers.push_back(checkfn);
663 LocationCheckers.push_back(checkfn);
667 BindCheckers.push_back(checkfn);
671 EndAnalysisCheckers.push_back(checkfn);
675 EndFunctionCheckers.push_back(checkfn);
680 BranchConditionCheckers.push_back(checkfn);
684 LiveSymbolsCheckers.push_back(checkfn);
688 DeadSymbolsCheckers.push_back(checkfn);
693 RegionChangesCheckerInfo info = {checkfn, wantUpdateFn};
694 RegionChangesCheckers.push_back(info);
698 PointerEscapeCheckers.push_back(checkfn);
703 PointerEscapeCheckers.push_back(checkfn);
707 EvalAssumeCheckers.push_back(checkfn);
711 EvalCallCheckers.push_back(checkfn);
716 EndOfTranslationUnitCheckers.push_back(checkfn);
724 CheckerManager::getCachedStmtCheckersFor(
const Stmt *
S,
bool isPreVisit) {
727 unsigned Key = (S->getStmtClass() << 1) |
unsigned(isPreVisit);
729 if (CCI != CachedStmtCheckersMap.end())
733 CachedStmtCheckers &Checkers = CachedStmtCheckersMap[Key];
734 for (
unsigned i = 0, e = StmtCheckers.size(); i != e; ++i) {
735 StmtCheckerInfo &Info = StmtCheckers[i];
736 if (Info.IsPreVisit == isPreVisit && Info.IsForStmtFn(S))
737 Checkers.push_back(Info.CheckFn);
743 for (
unsigned i = 0, e = CheckerDtors.size(); i != e; ++i)
void _registerForRegionChanges(CheckRegionChangesFunc checkfn, WantsRegionChangeUpdateFunc wantUpdateFn)
void _registerForDeadSymbols(CheckDeadSymbolsFunc checkfn)
Information about invalidation for a particular region/symbol.
static void expandGraphWithCheckers(CHECK_CTX checkCtx, ExplodedNodeSet &Dst, const ExplodedNodeSet &Src)
Decl - This represents one declaration (or definition), e.g.
void runCheckersForEndFunction(NodeBuilderContext &BC, ExplodedNodeSet &Dst, ExplodedNode *Pred, ExprEngine &Eng)
Run checkers on end of function.
The pointer has been passed to a function indirectly.
void _registerForObjCMessageNil(CheckObjCMessageFunc checkfn)
void finishedCheckerRegistration()
const NodeBuilderContext & getBuilderContext()
void runCheckersForLocation(ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, SVal location, bool isLoad, const Stmt *NodeEx, const Stmt *BoundEx, ExprEngine &Eng)
Run checkers for load/store of a location.
static ProgramPoint getProgramPoint(const Stmt *S, ProgramPoint::Kind K, const LocationContext *LC, const ProgramPointTag *tag)
ProgramStateRef runCheckersForPointerEscape(ProgramStateRef State, const InvalidatedSymbols &Escaped, const CallEvent *Call, PointerEscapeKind Kind, RegionAndSymbolInvalidationTraits *ITraits)
Run checkers when pointers escape.
ImplTy::iterator iterator
void _registerForPreCall(CheckCallFunc checkfn)
void runCheckersForLiveSymbols(ProgramStateRef state, SymbolReaper &SymReaper)
Run checkers for live symbols.
const Expr * getOriginExpr() const
Returns the expression whose value will be the result of this call.
void _registerForEndOfTranslationUnit(CheckEndOfTranslationUnit checkfn)
Represents any expression that calls an Objective-C method.
void _registerForLiveSymbols(CheckLiveSymbolsFunc checkfn)
bool wantsRegionChangeUpdate(ProgramStateRef state)
True if at least one checker wants to check region changes.
bool hasPathSensitiveCheckers() const
void runCheckersOnASTDecl(const Decl *D, AnalysisManager &mgr, BugReporter &BR)
Run checkers handling Decls.
detail::InMemoryDirectory::const_iterator I
const LocationContext * getLocationContext() const
void runCheckersForPrintState(raw_ostream &Out, ProgramStateRef State, const char *NL, const char *Sep)
Run checkers for debug-printing a ProgramState.
void runCheckersForBind(ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, SVal location, SVal val, const Stmt *S, ExprEngine &Eng, const ProgramPoint &PP)
Run checkers for binding of a value to a location.
void _registerForBody(CheckDeclFunc checkfn)
const ProgramStateRef & getState() const
This is the simplest builder which generates nodes in the ExplodedGraph.
void _registerForEndAnalysis(CheckEndAnalysisFunc checkfn)
void _registerForLocation(CheckLocationFunc checkfn)
The pointer has been passed to a function call directly.
void _registerForPointerEscape(CheckPointerEscapeFunc checkfn)
void runCheckersForEvalCall(ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, const CallEvent &CE, ExprEngine &Eng)
Run checkers for evaluating a call.
void _registerForPostCall(CheckCallFunc checkfn)
BugReporter is a utility class for generating PathDiagnostics for analysis.
void _registerForPreObjCMessage(CheckObjCMessageFunc checkfn)
const TemplateArgument * iterator
void runCheckersForBranchCondition(const Stmt *condition, ExplodedNodeSet &Dst, ExplodedNode *Pred, ExprEngine &Eng)
Run checkers for branch condition.
ProgramPoint withTag(const ProgramPointTag *tag) const
Create a new ProgramPoint object that is the same as the original except for using the specified tag ...
SVal - This represents a symbolic expression, which can be either an L-value or an R-value...
void _registerForBranchCondition(CheckBranchConditionFunc checkfn)
ProgramStateRef runCheckersForEvalAssume(ProgramStateRef state, SVal Cond, bool Assumption)
Run checkers for handling assumptions on symbolic values.
void runCheckersForObjCMessage(ObjCMessageVisitKind visitKind, ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, const ObjCMethodCall &msg, ExprEngine &Eng, bool wasInlined=false)
Run checkers for visiting obj-c messages.
A class responsible for cleaning up unused symbols.
void runCheckersOnASTBody(const Decl *D, AnalysisManager &mgr, BugReporter &BR)
Run checkers handling Decls containing a Stmt body.
void insert(const ExplodedNodeSet &S)
void runCheckersForDeadSymbols(ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, SymbolReaper &SymReaper, const Stmt *S, ExprEngine &Eng, ProgramPoint::Kind K)
Run checkers for dead symbols.
void runCheckersForStmt(bool isPreVisit, ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, const Stmt *S, ExprEngine &Eng, bool wasInlined=false)
Run checkers for visiting Stmts.
detail::InMemoryDirectory::const_iterator E
for(auto typeArg:T->getTypeArgsAsWritten())
void _registerForDecl(CheckDeclFunc checkfn, HandlesDeclFunc isForDeclFn)
void _registerForPostObjCMessage(CheckObjCMessageFunc checkfn)
Represents an abstract call to a function or method along a particular path.
void _registerForEndFunction(CheckEndFunctionFunc checkfn)
void _registerForEvalAssume(EvalAssumeFunc checkfn)
void _registerForPostStmt(CheckStmtFunc checkfn, HandlesStmtFunc isForStmtFn)
PointerEscapeKind
Describes the different reasons a pointer escapes during analysis.
void runCheckersForCallEvent(bool isPreVisit, ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, const CallEvent &Call, ExprEngine &Eng, bool wasInlined=false)
Run checkers for visiting obj-c messages.
void runCheckersForEndAnalysis(ExplodedGraph &G, BugReporter &BR, ExprEngine &Eng)
Run checkers for end of analysis.
void _registerForEvalCall(EvalCallFunc checkfn)
void defaultEvalCall(NodeBuilder &B, ExplodedNode *Pred, const CallEvent &Call)
Default implementation of call evaluation.
ProgramStateRef runCheckersForRegionChanges(ProgramStateRef state, const InvalidatedSymbols *invalidated, ArrayRef< const MemRegion * > ExplicitRegions, ArrayRef< const MemRegion * > Regions, const CallEvent *Call)
Run checkers for region changes.
CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]).
TranslationUnitDecl - The top declaration context.
void _registerForConstPointerEscape(CheckPointerEscapeFunc checkfn)
void runCheckersOnEndOfTranslationUnit(const TranslationUnitDecl *TU, AnalysisManager &mgr, BugReporter &BR)
Run checkers for the entire Translation Unit.
void _registerForPreStmt(CheckStmtFunc checkfn, HandlesStmtFunc isForStmtFn)
void _registerForBind(CheckBindFunc checkfn)
virtual bool hasBody() const
Returns true if this Decl represents a declaration for a body of code, such as a function or method d...