21 #include "llvm/ADT/SmallSet.h" 22 #include "llvm/ADT/Statistic.h" 23 #include "llvm/Support/SaveAndRestore.h" 25 using namespace clang;
28 #define DEBUG_TYPE "ExprEngine" 31 "The # of times we split the path due to imprecise dynamic dispatch info");
34 "The # of times we inlined a call");
37 "The # of times we reached inline count maximum");
47 assert(Entry->
empty());
72 static std::pair<
const Stmt*,
74 const Stmt *S =
nullptr;
88 S = CEE->getCalleeContext()->getCallSite();
97 Node = Node->getFirstPred();
99 }
while (!CE || CE->getCalleeContext() != CEE->getCalleeContext());
107 if (CE->getCalleeContext() == SF)
111 if (Node->pred_empty())
112 return std::make_pair(
nullptr,
nullptr);
117 return std::make_pair(S, Blk);
126 StoreManager &StoreMgr) {
134 if (ExpectedTy == ActualTy)
145 if (ExpectedClass && ActualClass) {
150 return StoreMgr.evalDerivedToBase(V, Paths.
front());
164 const Stmt *LastSt =
nullptr;
167 if (!Blk || !LastSt) {
179 removeDead(Pred, Dst, dyn_cast<ReturnStmt>(LastSt), LCtx,
187 const Decl *StaticDecl = Call->getDecl();
188 assert(RuntimeCallee);
212 const Stmt *CE = calleeCtx->getCallSite();
215 const Stmt *LastSt =
nullptr;
228 if (
const ReturnStmt *RS = dyn_cast_or_null<ReturnStmt>(LastSt)) {
230 SVal V = state->getSVal(RS, LCtx);
236 if (!ReturnedTy.
isNull()) {
237 if (
const Expr *Ex = dyn_cast<Expr>(CE)) {
244 state = state->BindExpr(CE, callerCtx, V);
250 svalBuilder.
getCXXThis(CCE->getConstructor()->getParent(), calleeCtx);
251 SVal ThisV = state->getSVal(This);
252 ThisV = state->getSVal(ThisV.
castAs<
Loc>());
253 state = state->BindExpr(CCE, callerCtx, ThisV);
256 if (
const auto *CNE = dyn_cast<CXXNewExpr>(CE)) {
262 SVal AllocV = state->getSVal(CNE, callerCtx);
264 AllocV, CNE->getType(),
267 state = addObjectUnderConstruction(state, CNE, calleeCtx->getParent(),
293 removeDead(BindedRetNode, CleanedNodes,
nullptr, calleeCtx,
294 calleeCtx->getAnalysisDeclContext()->getBody(),
296 currBldrCtx =
nullptr;
298 CleanedNodes.Add(CEBNode);
302 E = CleanedNodes.end(); I != E; ++I) {
326 if (
const CXXNewExpr *CNE = dyn_cast_or_null<CXXNewExpr>(CE)) {
329 CEENode, *UpdatedCall, *
this,
331 for (
auto I : DstPostPostCallCallback) {
335 calleeCtx->getParent()),
336 DstPostCall, I, *
this,
350 !(isa<CXXNewExpr>(CE) &&
362 calleeCtx->getIndex()+1);
379 return Cfg->
size() >= AMgr.
options.MinCFGSizeTreatFunctionsAsLarge;
388 bool &IsRecursive,
unsigned &StackDepth) {
394 const Decl *DI = SFC->getDecl();
407 if (!isSmall(CalleeADC))
422 DynamicDispatchModeInlined = 1,
423 DynamicDispatchModeConservative
428 const MemRegion *,
unsigned)
430 bool ExprEngine::inlineCall(
const CallEvent &Call,
const Decl *D,
431 NodeBuilder &Bldr, ExplodedNode *Pred,
439 !cast<BlockCall>(Call).isConversionFromLambda()) {
440 const BlockDataRegion *BR = cast<BlockCall>(Call).getBlockRegion();
441 assert(BR &&
"If we have the block definition we should have its region");
449 const Expr *CallE = Call.getOriginExpr();
455 currBldrCtx->getBlock(),
462 State = State->enterStackFrame(Call, CalleeSFC);
465 if (ExplodedNode *N = G.getNode(Loc, State,
false, &isNew)) {
466 N->addPredecessor(Pred, G);
468 Engine.getWorkList()->enqueue(N);
473 Bldr.takeNodes(Pred);
476 Engine.FunctionSummaries->bumpNumTimesInlined(D);
480 VisitedCallees->insert(D);
487 const void *ReplayState = State->get<ReplayWithoutInlining>();
491 assert(ReplayState == CallE &&
"Backtracked to the wrong call.");
494 return State->remove<ReplayWithoutInlining>();
514 evalCall(dstCallEvaluated, *I, *CallTemplate);
530 if (!E || isa<CXXNewExpr>(E))
534 for (
unsigned CallI = 0, CallN = Call.
getNumArgs(); CallI != CallN; ++CallI) {
541 ->getStackFrame()->getParent()
543 State = finishObjectConstruction(State, {E, I}, LC);
554 ProgramStateRef CleanedState = finishArgumentConstruction(State, Call);
555 if (CleanedState == State) {
564 "Finish argument construction");
593 for (
auto I : dstCallEvaluated)
594 finishArgumentConstruction(dstArgumentCleanup, I, Call);
609 if (
const ObjCMethodCall *Msg = dyn_cast<ObjCMethodCall>(&Call)) {
610 switch (Msg->getMethodFamily()) {
617 return State->BindExpr(E, LCtx, Msg->getReceiverSVal());
621 SVal ThisV = C->getCXXThisVal();
622 ThisV = State->getSVal(ThisV.
castAs<
Loc>());
623 return State->BindExpr(E, LCtx, ThisV);
628 unsigned Count = currBldrCtx->blockCount();
634 std::tie(State, Target) =
636 RTC->getConstructionContext(), CallOpts);
647 State = State->invalidateRegions(TargetR, E, Count, LCtx,
657 bool IsHeapPointer =
false;
658 if (
const auto *CNE = dyn_cast<CXXNewExpr>(E))
659 if (CNE->getOperatorNew()->isReplaceableGlobalAllocationFunction()) {
661 IsHeapPointer =
true;
664 R = IsHeapPointer ? svalBuilder.getConjuredHeapSymbolVal(E, LCtx, Count)
665 : svalBuilder.conjureSymbolVal(
nullptr, E, LCtx, ResultTy,
668 return State->BindExpr(E, LCtx, R);
683 ExprEngine::CallInlinePolicy
696 return CIP_DisallowedAlways;
700 return CIP_DisallowedAlways;
710 if (CC && isa<NewAllocatedObjectConstructionContext>(CC) &&
711 !Opts.MayInlineCXXAllocator)
712 return CIP_DisallowedOnce;
720 return CIP_DisallowedOnce;
734 return CIP_DisallowedAlways;
740 !Opts.ShouldIncludeTemporaryDtorsInCFG)
741 return CIP_DisallowedOnce;
747 return CIP_DisallowedOnce;
752 return CIP_DisallowedOnce;
759 return CIP_DisallowedAlways;
768 return CIP_DisallowedOnce;
772 !Opts.MayInlineCXXTemporaryDtors)
773 return CIP_DisallowedOnce;
779 return CIP_DisallowedOnce;
783 if (Opts.MayInlineCXXAllocator)
787 return CIP_DisallowedAlways;
789 if (!Opts.MayInlineObjCMethod)
790 return CIP_DisallowedAlways;
793 return CIP_DisallowedAlways;
811 return CXXRecordDecl::FindOrdinaryMember(Specifier, Path, DeclName);
850 if (II->isStr(
"shared_ptr"))
872 if (!Opts.MayInlineTemplateFunctions)
877 if (!Opts.MayInlineCXXStandardLibrary)
884 if (!Opts.MayInlineCXXContainerMethods)
885 if (!AMgr.isInCodeFile(FD->getLocation()))
893 if (!Opts.MayInlineCXXSharedPtrDtor)
901 const CFG *CalleeCFG = CalleeADC->
getCFG();
906 if (isHuge(CalleeADC))
917 bool ExprEngine::shouldInlineCall(
const CallEvent &Call,
const Decl *D,
918 const ExplodedNode *Pred,
919 const EvalCallOptions &CallOpts) {
934 if (!AMgr.shouldInlineCall())
938 Optional<bool> MayInline = Engine.FunctionSummaries->mayInline(D);
939 if (MayInline.hasValue()) {
940 if (!MayInline.getValue())
946 if (mayInlineDecl(CalleeADC)) {
947 Engine.FunctionSummaries->markMayInline(D);
949 Engine.FunctionSummaries->markShouldNotInline(D);
958 CallInlinePolicy CIP = mayInlineCallKind(Call, Pred, Opts, CallOpts);
959 if (CIP != CIP_Allowed) {
960 if (CIP == CIP_DisallowedAlways) {
961 assert(!MayInline.hasValue() || MayInline.getValue());
962 Engine.FunctionSummaries->markShouldNotInline(D);
968 bool IsRecursive =
false;
969 unsigned StackDepth = 0;
972 (!isSmall(CalleeADC) || IsRecursive))
976 if ((Engine.FunctionSummaries->getNumTimesInlined(D) >
977 Opts.MaxTimesInlineLarge) &&
978 isLarge(CalleeADC)) {
979 NumReachedInlineCountMax++;
983 if (HowToInline ==
Inline_Minimal && (!isSmall(CalleeADC) || IsRecursive))
1012 performTrivialCopy(Bldr, Pred, *Call);
1019 const Expr *E = Call->getOriginExpr();
1022 if (InlinedFailedState) {
1024 State = InlinedFailedState;
1028 if (shouldInlineCall(*Call, D, Pred, CallOpts)) {
1040 conservativeEvalCall(*Call, Bldr, Pred, State);
1046 if (inlineCall(*Call, D, Bldr, Pred, State))
1052 conservativeEvalCall(*Call, Bldr, Pred, State);
1055 void ExprEngine::BifurcateCall(
const MemRegion *BifurReg,
1064 const unsigned *BState =
1065 State->get<DynamicDispatchBifurcationMap>(BifurReg);
1068 if (*BState == DynamicDispatchModeInlined)
1069 if (inlineCall(Call, D, Bldr, Pred, State))
1074 conservativeEvalCall(Call, Bldr, Pred, State);
1081 State->set<DynamicDispatchBifurcationMap>(BifurReg,
1082 DynamicDispatchModeInlined);
1083 inlineCall(Call, D, Bldr, Pred, IState);
1086 State->set<DynamicDispatchBifurcationMap>(BifurReg,
1087 DynamicDispatchModeConservative);
1088 conservativeEvalCall(Call, Bldr, Pred, NoIState);
1090 NumOfDynamicDispatchPathSplits++;
1102 ei = dstPreVisit.
end(); it != ei; ++it) {
Represents a function declaration or definition.
unsigned InlineMaxStackDepth
The inlining stack depth limit.
A (possibly-)qualified type.
MemRegion - The root abstract class for all memory regions.
CallEventRef< T > cloneWithState(ProgramStateRef NewState) const
Returns a copy of this CallEvent, but using the given state.
const CXXConstructorDecl * getDecl() const override
bool IsTemporaryCtorOrDtor
This call is a constructor or a destructor of a temporary value.
Stmt * getBody() const
Get the body of the Declaration.
succ_iterator succ_begin()
ImplTy::iterator iterator
void VisitCallExpr(const CallExpr *CE, ExplodedNode *Pred, ExplodedNodeSet &Dst)
VisitCall - Transfer function for function calls.
void processCallExit(ExplodedNode *Pred) override
Generate the sequence of nodes that simulate the call exit and the post visit for CallExpr...
Stmt - This represents one statement.
Information about invalidation for a particular region/symbol.
This builder class is useful for generating nodes that resulted from visiting a statement.
ProgramPoint getProgramPoint(bool IsPreVisit=false, const ProgramPointTag *Tag=nullptr) const
Returns an appropriate ProgramPoint for this call.
unsigned size() const
Return the total number of CFGBlocks within the CFG This is simply a renaming of the getNumBlockIDs()...
Decl - This represents one declaration (or definition), e.g.
Represents a point when we begin processing an inlined call.
Manages the lifetime of CallEvent objects.
static bool isContainerMethod(const ASTContext &Ctx, const FunctionDecl *FD)
Returns true if the given function refers to a method of a C++ container or iterator.
IntrusiveRefCntPtr< const ProgramState > ProgramStateRef
bool isDerivedFrom(const CXXRecordDecl *Base) const
Determine whether this class is derived from the class Base.
Hints for figuring out of a call should be inlined during evalCall().
Represents a call to a C++ constructor.
bool IsArrayCtorOrDtor
This call is a constructor or a destructor for a single element within an array, a part of array cons...
const NestedNameSpecifier * Specifier
CallEventRef getSimpleCall(const CallExpr *E, ProgramStateRef State, const LocationContext *LCtx)
const ProgramStateRef & getState() const
SVal evalCast(SVal val, QualType castTy, QualType originalType)
Represents a path from a specific derived class (which is not represented as part of the path) to a p...
static bool wasDifferentDeclUsedForInlining(CallEventRef<> Call, const StackFrameContext *calleeCtx)
static std::pair< const Stmt *, const CFGBlock * > getLastStmt(const ExplodedNode *Node)
unsigned succ_size() const
const Expr * getOriginExpr() const
Returns the expression whose value will be the result of this call.
ASTContext & getASTContext() const
loc::MemRegionVal getCXXThis(const CXXMethodDecl *D, const StackFrameContext *SFC)
Return a memory region for the 'this' object reference.
void setTrait(SymbolRef Sym, InvalidationKinds IK)
static Optional< SVal > getObjectUnderConstruction(ProgramStateRef State, const ConstructionContextItem &Item, const LocationContext *LC)
By looking at a certain item that may be potentially part of an object's ConstructionContext, retrieve such object's location.
static bool hasMember(const ASTContext &Ctx, const CXXRecordDecl *RD, StringRef Name)
Returns true if the given C++ class contains a member with the given name.
void enqueue(ExplodedNodeSet &Set)
Enqueue the given set of nodes onto the work list.
void removeDead(ExplodedNode *Node, ExplodedNodeSet &Out, const Stmt *ReferenceStmt, const LocationContext *LC, const Stmt *DiagnosticStmt=nullptr, ProgramPoint::Kind K=ProgramPoint::PreStmtPurgeDeadSymbolsKind)
Run the analyzer's garbage collection - remove dead symbols and bindings from the state...
bool isMoveAssignmentOperator() const
Determine whether this is a move assignment operator.
const CFGBlock * getEntry() const
Returns the entry block in the CFG for the entered function.
DeclarationName getDeclName() const
Get the actual, stored name of the declaration, which may be a special name.
One of these records is kept for each identifier that is lexed.
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
AnalysisDeclContext contains the context data for the function or method under analysis.
void addPredecessor(ExplodedNode *V, ExplodedGraph &G)
addPredeccessor - Adds a predecessor to the current node, and in tandem add this node as a successor ...
void runCheckersForPostObjCMessage(ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, const ObjCMethodCall &msg, ExprEngine &Eng, bool wasInlined=false)
Run checkers for post-visiting obj-c messages.
i32 captured_struct **param SharedsTy A type which contains references the shared variables *param Shareds Context with the list of shared variables from the p *TaskFunction *param Data Additional data for task generation like final * state
const StackFrameContext * getStackFrame() const
STATISTIC(NumOfDynamicDispatchPathSplits, "The # of times we split the path due to imprecise dynamic dispatch info")
Represents any expression that calls an Objective-C method.
virtual Kind getKind() const =0
Returns the kind of call this is.
static bool isInStdNamespace(const Decl *D)
Returns true if the root namespace of the given declaration is the 'std' C++ namespace.
WorkList * getWorkList() const
void runCheckersForPreCall(ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, const CallEvent &Call, ExprEngine &Eng)
Run checkers for pre-visiting obj-c messages.
CFGElement getCurrentCFGElement()
Return the CFG element corresponding to the worklist element that is currently being processed by Exp...
T * getAnalysis()
Return the specified analysis object, lazily running the analysis if necessary.
const LocationContext * getLocationContext() const
const LocationContext * getParent() const
virtual const CXXConstructExpr * getOriginExpr() const
bool isLinear() const
Returns true if the CFG has no branches.
void VisitReturnStmt(const ReturnStmt *R, ExplodedNode *Pred, ExplodedNodeSet &Dst)
VisitReturnStmt - Transfer function logic for return statements.
const CoreEngine & getCoreEngine() const
bool hasTrivialDestructor() const
Determine whether this class has a trivial destructor (C++ [class.dtor]p3)
void runCheckersForPostCall(ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, const CallEvent &Call, ExprEngine &Eng, bool wasInlined=false)
Run checkers for post-visiting obj-c messages.
static bool isCXXSharedPtrDtor(const FunctionDecl *FD)
Returns true if the given function is the destructor of a class named "shared_ptr".
static bool isVariadic(const Decl *D)
Returns true if the given decl is known to be variadic.
virtual Decl * getCanonicalDecl()
Retrieves the "canonical" declaration of the given declaration.
lookup_result lookup(DeclarationName Name) const
lookup - Find the declarations (if any) with the given Name in this context.
AnalysisDeclContext * getAnalysisDeclContext(const Decl *D)
CheckerManager & getCheckerManager() const
void removeDeadOnEndOfFunction(NodeBuilderContext &BC, ExplodedNode *Pred, ExplodedNodeSet &Dst)
Remove dead bindings/symbols before exiting a function.
static bool isTrivialObjectAssignment(const CallEvent &Call)
ProgramStateRef bindReturnValue(const CallEvent &Call, const LocationContext *LCtx, ProgramStateRef State)
Create a new state in which the call return value is binded to the call origin expression.
Represents a non-static C++ member function call, no matter how it is written.
static SVal adjustReturnValue(SVal V, QualType ExpectedTy, QualType ActualTy, StoreManager &StoreMgr)
Adjusts a return value when the called function's return type does not match the caller's expression ...
DeclarationNameTable DeclarationNames
Represents a single basic block in a source-level CFG.
Represents a point when we finish the call exit sequence (for inlined call).
AnalysisDeclContext * getContext(const Decl *D)
void runCheckersForPostStmt(ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, const Stmt *S, ExprEngine &Eng, bool wasInlined=false)
Run checkers for post-visiting Stmts.
const LocationContext * getLocationContext() const
The context in which the call is being evaluated.
void processBeginOfFunction(NodeBuilderContext &BC, ExplodedNode *Pred, ExplodedNodeSet &Dst, const BlockEdge &L) override
Called by CoreEngine.
This represents one expression.
Represents a source-level, intra-procedural CFG that represents the control-flow of a Stmt...
bool isInSystemHeader(SourceLocation Loc) const
Returns if a SourceLocation is in a system header.
const CXXRecordDecl * getPointeeCXXRecordDecl() const
If this is a pointer or reference to a RecordType, return the CXXRecordDecl that the type refers to...
CallEventRef getCaller(const StackFrameContext *CalleeCtx, ProgramStateRef State)
Gets an outside caller given a callee context.
Represents a C++ destructor within a class.
AnalyzerOptions & getAnalyzerOptions() override
This is the simplest builder which generates nodes in the ExplodedGraph.
Represents C++ constructor call.
void Add(ExplodedNode *N)
Refers to regular member function and operator calls.
IdentifierInfo * getAsIdentifierInfo() const
Retrieve the IdentifierInfo * stored in this declaration name, or null if this declaration name isn't...
Refers to constructors (implicit or explicit).
void runCheckersForEvalCall(ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, const CallEvent &CE, ExprEngine &Eng)
Run checkers for evaluating a call.
ASTContext & getContext() const
getContext - Return the ASTContext associated with this analysis.
ReturnStmt - This represents a return, optionally of an expression: return; return 4;...
bool isBodyAutosynthesized() const
Checks if the body of the Decl is generated by the BodyFarm.
ExplodedNode * getNode(const ProgramPoint &L, ProgramStateRef State, bool IsSink=false, bool *IsNew=nullptr)
Retrieve the node associated with a (Location,State) pair, where the 'Location' is a ProgramPoint in ...
const StackFrameContext * getStackFrame(LocationContext const *Parent, const Stmt *S, const CFGBlock *Blk, unsigned Idx)
bool isTrivial() const
Whether this function is "trivial" in some specialized C++ senses.
Enable inlining of dynamically dispatched methods.
bool isNull() const
Return true if this QualType doesn't point to a type yet.
IPAKind getIPAMode() const
Returns the inter-procedural analysis mode.
const MemRegion * getRegion() const
Get the underlining region.
While alive, includes the current analysis stack in a crash trace.
CanQualType getCanonicalTypeUnqualified() const
void runCheckersForNewAllocator(const CXXNewExpr *NE, SVal Target, ExplodedNodeSet &Dst, ExplodedNode *Pred, ExprEngine &Eng, bool wasInlined=false)
Run checkers between C++ operator new and constructor calls.
Defines the runtime definition of the called function.
QualType getCanonicalType() const
const FunctionDecl * getDecl() const override
IdentifierInfo & get(StringRef Name)
Return the identifier token info for the specified named identifier.
AnalysisManager & getAnalysisManager() override
const MemRegion * getAsRegion() const
Represents a new-expression for memory allocation and constructor calls, e.g: "new CXXNewExpr(foo)"...
CallEventManager & getCallEventManager()
REGISTER_MAP_WITH_PROGRAMSTATE(DynamicDispatchBifurcationMap, const MemRegion *, unsigned) bool ExprEngine
void evalCall(ExplodedNodeSet &Dst, ExplodedNode *Pred, const CallEvent &Call)
Evaluate a call, running pre- and post-call checks and allowing checkers to be responsible for handli...
Represents a static or instance method of a struct/union/class.
bool IsCtorOrDtorWithImproperlyModeledTargetRegion
This call is a constructor or a destructor for which we do not currently compute the this-region corr...
SVal - This represents a symbolic expression, which can be either an L-value or an R-value...
const Decl * getDecl() const
bool isObjCObjectPointerType() const
AnalyzerOptions & options
Do minimal inlining of callees.
unsigned getNumBlockIDs() const
Returns the total number of BlockIDs allocated (which start at 0).
Refers to destructors (implicit or explicit).
void runCheckersForPreStmt(ExplodedNodeSet &Dst, const ExplodedNodeSet &Src, const Stmt *S, ExprEngine &Eng)
Run checkers for pre-visiting Stmts.
static bool isContainerClass(const ASTContext &Ctx, const CXXRecordDecl *RD)
Returns true if the given C++ class is a container or iterator.
const MemRegion * getDispatchRegion()
When other definitions are possible, returns the region whose runtime type determines the method defi...
void insert(const ExplodedNodeSet &S)
Optional< T > getAs() const
Convert to the specified CFGElement type, returning None if this CFGElement is not of the desired typ...
ast_type_traits::DynTypedNode Node
pred_iterator pred_begin()
static ProgramStateRef getInlineFailedState(ProgramStateRef State, const Stmt *CallE)
Dataflow Directional Tag Classes.
CFG::BuildOptions & getCFGBuildOptions()
Return the build options used to construct the CFG.
StoreManager & getStoreManager()
const StackFrameContext * getCalleeContext() const
The name of a declaration.
const CXXRecordDecl * getParent() const
Return the parent of this method declaration, which is the class in which this method is defined...
const MemRegion * StripCasts(bool StripBaseAndDerivedCasts=true) const
bool isAmbiguous(CanQualType BaseType)
Determine whether the path from the most-derived type to the given base type is ambiguous (i...
bool isCopyAssignmentOperator() const
Determine whether this is a copy-assignment operator, regardless of whether it was declared implicitl...
bool mayHaveOtherDefinitions()
Check if the definition we have is precise.
Represents an abstract call to a function or method along a particular path.
ProgramStateManager & getStateManager() override
const Decl * getDecl() const
void defaultEvalCall(NodeBuilder &B, ExplodedNode *Pred, const CallEvent &Call, const EvalCallOptions &CallOpts={})
Default implementation of call evaluation.
bool lookupInBases(BaseMatchesCallback BaseMatches, CXXBasePaths &Paths, bool LookupInDependent=false) const
Look for entities within the base classes of this C++ class, transitively searching all base class su...
T castAs() const
Convert to the specified SVal type, asserting that this SVal is of the desired type.
virtual unsigned getASTArgumentIndex(unsigned CallArgumentIndex) const
Some call event sub-classes conveniently adjust mismatching AST indices to match parameter indices...
static QualType getDeclaredResultType(const Decl *D)
Returns the result type of a function or method declaration.
bool mayInlineCXXMemberFunction(CXXInlineableMemberKind K) const
Returns the option controlling which C++ member functions will be considered for inlining.
const StackFrameContext * getStackFrame() const
Represents a base class of a C++ class.
Stores options for the analyzer from the command line.
SourceManager & getSourceManager()
QualType getResultType() const
Returns the result type, adjusted for references.
ExplodedNode * generateNode(const ProgramPoint &PP, ProgramStateRef State, ExplodedNode *Pred)
Generates a node in the ExplodedGraph.
Defines the C++ Decl subclasses, other than those for templates (found in DeclTemplate.h) and friends (in DeclFriend.h).
ConstructionContext's subclasses describe different ways of constructing an object in C++...
Represents a C++ struct/union/class.
bool IsTemporaryLifetimeExtendedViaAggregate
This call is a constructor for a temporary that is lifetime-extended by binding it to a reference-typ...
virtual unsigned getNumArgs() const =0
Returns the number of arguments (explicit and implicit).
QualType getPointerType(QualType T) const
Return the uniqued reference to the type for a pointer to the specified type.
CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]).
ExplodedNode * generateNode(const Stmt *S, ExplodedNode *Pred, ProgramStateRef St, const ProgramPointTag *tag=nullptr, ProgramPoint::Kind K=ProgramPoint::PostStmtKind)
ProgramStateRef invalidateRegions(unsigned BlockCount, ProgramStateRef Orig=nullptr) const
Returns a new state with all argument regions invalidated.
virtual void enqueue(const WorkListUnit &U)=0
const BlockInvocationContext * getBlockInvocationContext(const LocationContext *parent, const BlockDecl *BD, const void *ContextData)
BasePaths - Represents the set of paths from a derived class to one of its (direct or indirect) bases...
const StackFrameContext * getStackFrame() const
AnalysisPurgeMode AnalysisPurgeOpt
Enable inlining of dynamically dispatched methods, bifurcate paths when exact type info is unavailabl...
Optional< T > getAs() const
Convert to the specified ProgramPoint type, returning None if this ProgramPoint is not of the desired...
AnalysisDeclContext * getAnalysisDeclContext() const
Represents a call to a C++ constructor.
const LangOptions & getLangOpts() const
void processCallEnter(NodeBuilderContext &BC, CallEnter CE, ExplodedNode *Pred) override
Generate the entry node of the callee.
CallEventRef< T > cloneWithState(ProgramStateRef State) const