| //== GRState.h - Path-sensitive "State" for tracking values -----*- C++ -*--==// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines SymbolRef, ExprBindKey, and GRState*. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_GR_VALUESTATE_H |
| #define LLVM_CLANG_GR_VALUESTATE_H |
| |
| #include "clang/StaticAnalyzer/PathSensitive/ConstraintManager.h" |
| #include "clang/StaticAnalyzer/PathSensitive/Environment.h" |
| #include "clang/StaticAnalyzer/PathSensitive/Store.h" |
| #include "clang/StaticAnalyzer/PathSensitive/SValBuilder.h" |
| #include "llvm/ADT/FoldingSet.h" |
| #include "llvm/ADT/ImmutableMap.h" |
| #include "llvm/Support/Casting.h" |
| |
| namespace llvm { |
| class APSInt; |
| class BumpPtrAllocator; |
| class raw_ostream; |
| } |
| |
| namespace clang { |
| class ASTContext; |
| |
| namespace ento { |
| |
| class GRStateManager; |
| class Checker; |
| |
| typedef ConstraintManager* (*ConstraintManagerCreator)(GRStateManager&, |
| SubEngine&); |
| typedef StoreManager* (*StoreManagerCreator)(GRStateManager&); |
| |
| //===----------------------------------------------------------------------===// |
| // GRStateTrait - Traits used by the Generic Data Map of a GRState. |
| //===----------------------------------------------------------------------===// |
| |
| template <typename T> struct GRStatePartialTrait; |
| |
| template <typename T> struct GRStateTrait { |
| typedef typename T::data_type data_type; |
| static inline void* GDMIndex() { return &T::TagInt; } |
| static inline void* MakeVoidPtr(data_type D) { return (void*) D; } |
| static inline data_type MakeData(void* const* P) { |
| return P ? (data_type) *P : (data_type) 0; |
| } |
| }; |
| |
| class GRStateManager; |
| |
| /// GRState - This class encapsulates: |
| /// |
| /// 1. A mapping from expressions to values (Environment) |
| /// 2. A mapping from locations to values (Store) |
| /// 3. Constraints on symbolic values (GenericDataMap) |
| /// |
| /// Together these represent the "abstract state" of a program. |
| /// |
| /// GRState is intended to be used as a functional object; that is, |
| /// once it is created and made "persistent" in a FoldingSet, its |
| /// values will never change. |
| class GRState : public llvm::FoldingSetNode { |
| public: |
| typedef llvm::ImmutableSet<llvm::APSInt*> IntSetTy; |
| typedef llvm::ImmutableMap<void*, void*> GenericDataMap; |
| |
| private: |
| void operator=(const GRState& R) const; // Do not implement. |
| |
| friend class GRStateManager; |
| |
| GRStateManager *StateMgr; |
| Environment Env; // Maps a Stmt to its current SVal. |
| Store St; // Maps a location to its current value. |
| GenericDataMap GDM; // Custom data stored by a client of this class. |
| |
| /// makeWithStore - Return a GRState with the same values as the current |
| /// state with the exception of using the specified Store. |
| const GRState *makeWithStore(Store store) const; |
| |
| public: |
| |
| /// This ctor is used when creating the first GRState object. |
| GRState(GRStateManager *mgr, const Environment& env, |
| Store st, GenericDataMap gdm) |
| : StateMgr(mgr), |
| Env(env), |
| St(st), |
| GDM(gdm) {} |
| |
| /// Copy ctor - We must explicitly define this or else the "Next" ptr |
| /// in FoldingSetNode will also get copied. |
| GRState(const GRState& RHS) |
| : llvm::FoldingSetNode(), |
| StateMgr(RHS.StateMgr), |
| Env(RHS.Env), |
| St(RHS.St), |
| GDM(RHS.GDM) {} |
| |
| /// getStateManager - Return the GRStateManager associated with this state. |
| GRStateManager &getStateManager() const { |
| return *StateMgr; |
| } |
| |
| /// getEnvironment - Return the environment associated with this state. |
| /// The environment is the mapping from expressions to values. |
| const Environment& getEnvironment() const { return Env; } |
| |
| /// getStore - Return the store associated with this state. The store |
| /// is a mapping from locations to values. |
| Store getStore() const { return St; } |
| |
| void setStore(Store s) { St = s; } |
| |
| /// getGDM - Return the generic data map associated with this state. |
| GenericDataMap getGDM() const { return GDM; } |
| |
| void setGDM(GenericDataMap gdm) { GDM = gdm; } |
| |
| /// Profile - Profile the contents of a GRState object for use in a |
| /// FoldingSet. Two GRState objects are considered equal if they |
| /// have the same Environment, Store, and GenericDataMap. |
| static void Profile(llvm::FoldingSetNodeID& ID, const GRState* V) { |
| V->Env.Profile(ID); |
| ID.AddPointer(V->St); |
| V->GDM.Profile(ID); |
| } |
| |
| /// Profile - Used to profile the contents of this object for inclusion |
| /// in a FoldingSet. |
| void Profile(llvm::FoldingSetNodeID& ID) const { |
| Profile(ID, this); |
| } |
| |
| BasicValueFactory &getBasicVals() const; |
| SymbolManager &getSymbolManager() const; |
| |
| //==---------------------------------------------------------------------==// |
| // Constraints on values. |
| //==---------------------------------------------------------------------==// |
| // |
| // Each GRState records constraints on symbolic values. These constraints |
| // are managed using the ConstraintManager associated with a GRStateManager. |
| // As constraints gradually accrue on symbolic values, added constraints |
| // may conflict and indicate that a state is infeasible (as no real values |
| // could satisfy all the constraints). This is the principal mechanism |
| // for modeling path-sensitivity in ExprEngine/GRState. |
| // |
| // Various "assume" methods form the interface for adding constraints to |
| // symbolic values. A call to 'assume' indicates an assumption being placed |
| // on one or symbolic values. 'assume' methods take the following inputs: |
| // |
| // (1) A GRState object representing the current state. |
| // |
| // (2) The assumed constraint (which is specific to a given "assume" method). |
| // |
| // (3) A binary value "Assumption" that indicates whether the constraint is |
| // assumed to be true or false. |
| // |
| // The output of "assume*" is a new GRState object with the added constraints. |
| // If no new state is feasible, NULL is returned. |
| // |
| |
| const GRState *assume(DefinedOrUnknownSVal cond, bool assumption) const; |
| |
| /// This method assumes both "true" and "false" for 'cond', and |
| /// returns both corresponding states. It's shorthand for doing |
| /// 'assume' twice. |
| std::pair<const GRState*, const GRState*> |
| assume(DefinedOrUnknownSVal cond) const; |
| |
| const GRState *assumeInBound(DefinedOrUnknownSVal idx, |
| DefinedOrUnknownSVal upperBound, |
| bool assumption) const; |
| |
| //==---------------------------------------------------------------------==// |
| // Utility methods for getting regions. |
| //==---------------------------------------------------------------------==// |
| |
| const VarRegion* getRegion(const VarDecl *D, const LocationContext *LC) const; |
| |
| //==---------------------------------------------------------------------==// |
| // Binding and retrieving values to/from the environment and symbolic store. |
| //==---------------------------------------------------------------------==// |
| |
| /// BindCompoundLiteral - Return the state that has the bindings currently |
| /// in this state plus the bindings for the CompoundLiteral. |
| const GRState *bindCompoundLiteral(const CompoundLiteralExpr* CL, |
| const LocationContext *LC, |
| SVal V) const; |
| |
| /// Create a new state by binding the value 'V' to the statement 'S' in the |
| /// state's environment. |
| const GRState *BindExpr(const Stmt *S, SVal V, bool Invalidate = true) const; |
| |
| /// Create a new state by binding the value 'V' and location 'locaton' to the |
| /// statement 'S' in the state's environment. |
| const GRState *bindExprAndLocation(const Stmt *S, SVal location, SVal V) |
| const; |
| |
| const GRState *bindDecl(const VarRegion *VR, SVal V) const; |
| |
| const GRState *bindDeclWithNoInit(const VarRegion *VR) const; |
| |
| const GRState *bindLoc(Loc location, SVal V) const; |
| |
| const GRState *bindLoc(SVal location, SVal V) const; |
| |
| const GRState *bindDefault(SVal loc, SVal V) const; |
| |
| const GRState *unbindLoc(Loc LV) const; |
| |
| /// InvalidateRegion - Returns the state with bindings for the given region |
| /// cleared from the store. See InvalidateRegions. |
| const GRState *InvalidateRegion(const MemRegion *R, |
| const Expr *E, unsigned BlockCount, |
| StoreManager::InvalidatedSymbols *IS = NULL) |
| const { |
| return InvalidateRegions(&R, &R+1, E, BlockCount, IS, false); |
| } |
| |
| /// InvalidateRegions - Returns the state with bindings for the given regions |
| /// cleared from the store. The regions are provided as a continuous array |
| /// from Begin to End. Optionally invalidates global regions as well. |
| const GRState *InvalidateRegions(const MemRegion * const *Begin, |
| const MemRegion * const *End, |
| const Expr *E, unsigned BlockCount, |
| StoreManager::InvalidatedSymbols *IS, |
| bool invalidateGlobals) const; |
| |
| /// EnterStackFrame - Returns the state for entry to the given stack frame, |
| /// preserving the current state. |
| const GRState *EnterStackFrame(const StackFrameContext *frame) const; |
| |
| /// Get the lvalue for a variable reference. |
| Loc getLValue(const VarDecl *D, const LocationContext *LC) const; |
| |
| /// Get the lvalue for a StringLiteral. |
| Loc getLValue(const StringLiteral *literal) const; |
| |
| Loc getLValue(const CompoundLiteralExpr *literal, |
| const LocationContext *LC) const; |
| |
| /// Get the lvalue for an ivar reference. |
| SVal getLValue(const ObjCIvarDecl *decl, SVal base) const; |
| |
| /// Get the lvalue for a field reference. |
| SVal getLValue(const FieldDecl *decl, SVal Base) const; |
| |
| /// Get the lvalue for an array index. |
| SVal getLValue(QualType ElementType, SVal Idx, SVal Base) const; |
| |
| const llvm::APSInt *getSymVal(SymbolRef sym) const; |
| |
| /// Returns the SVal bound to the statement 'S' in the state's environment. |
| SVal getSVal(const Stmt* S) const; |
| |
| SVal getSValAsScalarOrLoc(const Stmt *Ex) const; |
| |
| SVal getSVal(Loc LV, QualType T = QualType()) const; |
| |
| /// Returns the "raw" SVal bound to LV before any value simplfication. |
| SVal getRawSVal(Loc LV, QualType T= QualType()) const; |
| |
| SVal getSVal(const MemRegion* R) const; |
| |
| SVal getSValAsScalarOrLoc(const MemRegion *R) const; |
| |
| const llvm::APSInt *getSymVal(SymbolRef sym); |
| |
| bool scanReachableSymbols(SVal val, SymbolVisitor& visitor) const; |
| |
| bool scanReachableSymbols(const SVal *I, const SVal *E, |
| SymbolVisitor &visitor) const; |
| |
| bool scanReachableSymbols(const MemRegion * const *I, |
| const MemRegion * const *E, |
| SymbolVisitor &visitor) const; |
| |
| template <typename CB> CB scanReachableSymbols(SVal val) const; |
| template <typename CB> CB scanReachableSymbols(const SVal *beg, |
| const SVal *end) const; |
| |
| template <typename CB> CB |
| scanReachableSymbols(const MemRegion * const *beg, |
| const MemRegion * const *end) const; |
| |
| //==---------------------------------------------------------------------==// |
| // Accessing the Generic Data Map (GDM). |
| //==---------------------------------------------------------------------==// |
| |
| void* const* FindGDM(void* K) const; |
| |
| template<typename T> |
| const GRState *add(typename GRStateTrait<T>::key_type K) const; |
| |
| template <typename T> |
| typename GRStateTrait<T>::data_type |
| get() const { |
| return GRStateTrait<T>::MakeData(FindGDM(GRStateTrait<T>::GDMIndex())); |
| } |
| |
| template<typename T> |
| typename GRStateTrait<T>::lookup_type |
| get(typename GRStateTrait<T>::key_type key) const { |
| void* const* d = FindGDM(GRStateTrait<T>::GDMIndex()); |
| return GRStateTrait<T>::Lookup(GRStateTrait<T>::MakeData(d), key); |
| } |
| |
| template <typename T> |
| typename GRStateTrait<T>::context_type get_context() const; |
| |
| |
| template<typename T> |
| const GRState *remove(typename GRStateTrait<T>::key_type K) const; |
| |
| template<typename T> |
| const GRState *remove(typename GRStateTrait<T>::key_type K, |
| typename GRStateTrait<T>::context_type C) const; |
| template <typename T> |
| const GRState *remove() const; |
| |
| template<typename T> |
| const GRState *set(typename GRStateTrait<T>::data_type D) const; |
| |
| template<typename T> |
| const GRState *set(typename GRStateTrait<T>::key_type K, |
| typename GRStateTrait<T>::value_type E) const; |
| |
| template<typename T> |
| const GRState *set(typename GRStateTrait<T>::key_type K, |
| typename GRStateTrait<T>::value_type E, |
| typename GRStateTrait<T>::context_type C) const; |
| |
| template<typename T> |
| bool contains(typename GRStateTrait<T>::key_type key) const { |
| void* const* d = FindGDM(GRStateTrait<T>::GDMIndex()); |
| return GRStateTrait<T>::Contains(GRStateTrait<T>::MakeData(d), key); |
| } |
| |
| // State pretty-printing. |
| class Printer { |
| public: |
| virtual ~Printer() {} |
| virtual void Print(llvm::raw_ostream& Out, const GRState* state, |
| const char* nl, const char* sep) = 0; |
| }; |
| |
| // Pretty-printing. |
| void print(llvm::raw_ostream& Out, CFG &C, const char *nl = "\n", |
| const char *sep = "") const; |
| |
| void printStdErr(CFG &C) const; |
| |
| void printDOT(llvm::raw_ostream& Out, CFG &C) const; |
| }; |
| |
| class GRStateSet { |
| typedef llvm::SmallPtrSet<const GRState*,5> ImplTy; |
| ImplTy Impl; |
| public: |
| GRStateSet() {} |
| |
| inline void Add(const GRState* St) { |
| Impl.insert(St); |
| } |
| |
| typedef ImplTy::const_iterator iterator; |
| |
| inline unsigned size() const { return Impl.size(); } |
| inline bool empty() const { return Impl.empty(); } |
| |
| inline iterator begin() const { return Impl.begin(); } |
| inline iterator end() const { return Impl.end(); } |
| |
| class AutoPopulate { |
| GRStateSet& S; |
| unsigned StartSize; |
| const GRState* St; |
| public: |
| AutoPopulate(GRStateSet& s, const GRState* st) |
| : S(s), StartSize(S.size()), St(st) {} |
| |
| ~AutoPopulate() { |
| if (StartSize == S.size()) |
| S.Add(St); |
| } |
| }; |
| }; |
| |
| //===----------------------------------------------------------------------===// |
| // GRStateManager - Factory object for GRStates. |
| //===----------------------------------------------------------------------===// |
| |
| class GRStateManager { |
| friend class GRState; |
| friend class ExprEngine; // FIXME: Remove. |
| private: |
| /// Eng - The SubEngine that owns this state manager. |
| SubEngine &Eng; |
| |
| EnvironmentManager EnvMgr; |
| llvm::OwningPtr<StoreManager> StoreMgr; |
| llvm::OwningPtr<ConstraintManager> ConstraintMgr; |
| |
| GRState::GenericDataMap::Factory GDMFactory; |
| |
| typedef llvm::DenseMap<void*,std::pair<void*,void (*)(void*)> > GDMContextsTy; |
| GDMContextsTy GDMContexts; |
| |
| /// Printers - A set of printer objects used for pretty-printing a GRState. |
| /// GRStateManager owns these objects. |
| std::vector<GRState::Printer*> Printers; |
| |
| /// StateSet - FoldingSet containing all the states created for analyzing |
| /// a particular function. This is used to unique states. |
| llvm::FoldingSet<GRState> StateSet; |
| |
| /// Object that manages the data for all created SVals. |
| llvm::OwningPtr<SValBuilder> svalBuilder; |
| |
| /// Alloc - A BumpPtrAllocator to allocate states. |
| llvm::BumpPtrAllocator &Alloc; |
| |
| public: |
| GRStateManager(ASTContext& Ctx, |
| StoreManagerCreator CreateStoreManager, |
| ConstraintManagerCreator CreateConstraintManager, |
| llvm::BumpPtrAllocator& alloc, |
| SubEngine &subeng) |
| : Eng(subeng), |
| EnvMgr(alloc), |
| GDMFactory(alloc), |
| svalBuilder(createSimpleSValBuilder(alloc, Ctx, *this)), |
| Alloc(alloc) { |
| StoreMgr.reset((*CreateStoreManager)(*this)); |
| ConstraintMgr.reset((*CreateConstraintManager)(*this, subeng)); |
| } |
| |
| ~GRStateManager(); |
| |
| const GRState *getInitialState(const LocationContext *InitLoc); |
| |
| ASTContext &getContext() { return svalBuilder->getContext(); } |
| const ASTContext &getContext() const { return svalBuilder->getContext(); } |
| |
| BasicValueFactory &getBasicVals() { |
| return svalBuilder->getBasicValueFactory(); |
| } |
| const BasicValueFactory& getBasicVals() const { |
| return svalBuilder->getBasicValueFactory(); |
| } |
| |
| SValBuilder &getSValBuilder() { |
| return *svalBuilder; |
| } |
| |
| SymbolManager &getSymbolManager() { |
| return svalBuilder->getSymbolManager(); |
| } |
| const SymbolManager &getSymbolManager() const { |
| return svalBuilder->getSymbolManager(); |
| } |
| |
| llvm::BumpPtrAllocator& getAllocator() { return Alloc; } |
| |
| MemRegionManager& getRegionManager() { |
| return svalBuilder->getRegionManager(); |
| } |
| const MemRegionManager& getRegionManager() const { |
| return svalBuilder->getRegionManager(); |
| } |
| |
| StoreManager& getStoreManager() { return *StoreMgr; } |
| ConstraintManager& getConstraintManager() { return *ConstraintMgr; } |
| SubEngine& getOwningEngine() { return Eng; } |
| |
| const GRState* RemoveDeadBindings(const GRState* St, |
| const StackFrameContext *LCtx, |
| SymbolReaper& SymReaper); |
| |
| /// Marshal a new state for the callee in another translation unit. |
| /// 'state' is owned by the caller's engine. |
| const GRState *MarshalState(const GRState *state, const StackFrameContext *L); |
| |
| public: |
| |
| SVal ArrayToPointer(Loc Array) { |
| return StoreMgr->ArrayToPointer(Array); |
| } |
| |
| // Methods that manipulate the GDM. |
| const GRState* addGDM(const GRState* St, void* Key, void* Data); |
| const GRState *removeGDM(const GRState *state, void *Key); |
| |
| // Methods that query & manipulate the Store. |
| |
| void iterBindings(const GRState* state, StoreManager::BindingsHandler& F) { |
| StoreMgr->iterBindings(state->getStore(), F); |
| } |
| |
| const GRState* getPersistentState(GRState& Impl); |
| |
| //==---------------------------------------------------------------------==// |
| // Generic Data Map methods. |
| //==---------------------------------------------------------------------==// |
| // |
| // GRStateManager and GRState support a "generic data map" that allows |
| // different clients of GRState objects to embed arbitrary data within a |
| // GRState object. The generic data map is essentially an immutable map |
| // from a "tag" (that acts as the "key" for a client) and opaque values. |
| // Tags/keys and values are simply void* values. The typical way that clients |
| // generate unique tags are by taking the address of a static variable. |
| // Clients are responsible for ensuring that data values referred to by a |
| // the data pointer are immutable (and thus are essentially purely functional |
| // data). |
| // |
| // The templated methods below use the GRStateTrait<T> class |
| // to resolve keys into the GDM and to return data values to clients. |
| // |
| |
| // Trait based GDM dispatch. |
| template <typename T> |
| const GRState* set(const GRState* st, typename GRStateTrait<T>::data_type D) { |
| return addGDM(st, GRStateTrait<T>::GDMIndex(), |
| GRStateTrait<T>::MakeVoidPtr(D)); |
| } |
| |
| template<typename T> |
| const GRState* set(const GRState* st, |
| typename GRStateTrait<T>::key_type K, |
| typename GRStateTrait<T>::value_type V, |
| typename GRStateTrait<T>::context_type C) { |
| |
| return addGDM(st, GRStateTrait<T>::GDMIndex(), |
| GRStateTrait<T>::MakeVoidPtr(GRStateTrait<T>::Set(st->get<T>(), K, V, C))); |
| } |
| |
| template <typename T> |
| const GRState* add(const GRState* st, |
| typename GRStateTrait<T>::key_type K, |
| typename GRStateTrait<T>::context_type C) { |
| return addGDM(st, GRStateTrait<T>::GDMIndex(), |
| GRStateTrait<T>::MakeVoidPtr(GRStateTrait<T>::Add(st->get<T>(), K, C))); |
| } |
| |
| template <typename T> |
| const GRState* remove(const GRState* st, |
| typename GRStateTrait<T>::key_type K, |
| typename GRStateTrait<T>::context_type C) { |
| |
| return addGDM(st, GRStateTrait<T>::GDMIndex(), |
| GRStateTrait<T>::MakeVoidPtr(GRStateTrait<T>::Remove(st->get<T>(), K, C))); |
| } |
| |
| template <typename T> |
| const GRState *remove(const GRState *st) { |
| return removeGDM(st, GRStateTrait<T>::GDMIndex()); |
| } |
| |
| void* FindGDMContext(void* index, |
| void* (*CreateContext)(llvm::BumpPtrAllocator&), |
| void (*DeleteContext)(void*)); |
| |
| template <typename T> |
| typename GRStateTrait<T>::context_type get_context() { |
| void* p = FindGDMContext(GRStateTrait<T>::GDMIndex(), |
| GRStateTrait<T>::CreateContext, |
| GRStateTrait<T>::DeleteContext); |
| |
| return GRStateTrait<T>::MakeContext(p); |
| } |
| |
| const llvm::APSInt* getSymVal(const GRState* St, SymbolRef sym) { |
| return ConstraintMgr->getSymVal(St, sym); |
| } |
| |
| void EndPath(const GRState* St) { |
| ConstraintMgr->EndPath(St); |
| } |
| }; |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Out-of-line method definitions for GRState. |
| //===----------------------------------------------------------------------===// |
| |
| inline const llvm::APSInt *GRState::getSymVal(SymbolRef sym) { |
| return getStateManager().getSymVal(this, sym); |
| } |
| |
| inline const VarRegion* GRState::getRegion(const VarDecl *D, |
| const LocationContext *LC) const { |
| return getStateManager().getRegionManager().getVarRegion(D, LC); |
| } |
| |
| inline const GRState *GRState::assume(DefinedOrUnknownSVal Cond, |
| bool Assumption) const { |
| if (Cond.isUnknown()) |
| return this; |
| |
| return getStateManager().ConstraintMgr->assume(this, cast<DefinedSVal>(Cond), |
| Assumption); |
| } |
| |
| inline std::pair<const GRState*, const GRState*> |
| GRState::assume(DefinedOrUnknownSVal Cond) const { |
| if (Cond.isUnknown()) |
| return std::make_pair(this, this); |
| |
| return getStateManager().ConstraintMgr->assumeDual(this, |
| cast<DefinedSVal>(Cond)); |
| } |
| |
| inline const GRState *GRState::bindLoc(SVal LV, SVal V) const { |
| return !isa<Loc>(LV) ? this : bindLoc(cast<Loc>(LV), V); |
| } |
| |
| inline Loc GRState::getLValue(const VarDecl* VD, |
| const LocationContext *LC) const { |
| return getStateManager().StoreMgr->getLValueVar(VD, LC); |
| } |
| |
| inline Loc GRState::getLValue(const StringLiteral *literal) const { |
| return getStateManager().StoreMgr->getLValueString(literal); |
| } |
| |
| inline Loc GRState::getLValue(const CompoundLiteralExpr *literal, |
| const LocationContext *LC) const { |
| return getStateManager().StoreMgr->getLValueCompoundLiteral(literal, LC); |
| } |
| |
| inline SVal GRState::getLValue(const ObjCIvarDecl *D, SVal Base) const { |
| return getStateManager().StoreMgr->getLValueIvar(D, Base); |
| } |
| |
| inline SVal GRState::getLValue(const FieldDecl* D, SVal Base) const { |
| return getStateManager().StoreMgr->getLValueField(D, Base); |
| } |
| |
| inline SVal GRState::getLValue(QualType ElementType, SVal Idx, SVal Base) const{ |
| if (NonLoc *N = dyn_cast<NonLoc>(&Idx)) |
| return getStateManager().StoreMgr->getLValueElement(ElementType, *N, Base); |
| return UnknownVal(); |
| } |
| |
| inline const llvm::APSInt *GRState::getSymVal(SymbolRef sym) const { |
| return getStateManager().getSymVal(this, sym); |
| } |
| |
| inline SVal GRState::getSVal(const Stmt* Ex) const { |
| return Env.getSVal(Ex, *getStateManager().svalBuilder); |
| } |
| |
| inline SVal GRState::getSValAsScalarOrLoc(const Stmt *S) const { |
| if (const Expr *Ex = dyn_cast<Expr>(S)) { |
| QualType T = Ex->getType(); |
| if (Loc::IsLocType(T) || T->isIntegerType()) |
| return getSVal(S); |
| } |
| |
| return UnknownVal(); |
| } |
| |
| inline SVal GRState::getRawSVal(Loc LV, QualType T) const { |
| return getStateManager().StoreMgr->Retrieve(St, LV, T); |
| } |
| |
| inline SVal GRState::getSVal(const MemRegion* R) const { |
| return getStateManager().StoreMgr->Retrieve(St, loc::MemRegionVal(R)); |
| } |
| |
| inline BasicValueFactory &GRState::getBasicVals() const { |
| return getStateManager().getBasicVals(); |
| } |
| |
| inline SymbolManager &GRState::getSymbolManager() const { |
| return getStateManager().getSymbolManager(); |
| } |
| |
| template<typename T> |
| const GRState *GRState::add(typename GRStateTrait<T>::key_type K) const { |
| return getStateManager().add<T>(this, K, get_context<T>()); |
| } |
| |
| template <typename T> |
| typename GRStateTrait<T>::context_type GRState::get_context() const { |
| return getStateManager().get_context<T>(); |
| } |
| |
| template<typename T> |
| const GRState *GRState::remove(typename GRStateTrait<T>::key_type K) const { |
| return getStateManager().remove<T>(this, K, get_context<T>()); |
| } |
| |
| template<typename T> |
| const GRState *GRState::remove(typename GRStateTrait<T>::key_type K, |
| typename GRStateTrait<T>::context_type C) const { |
| return getStateManager().remove<T>(this, K, C); |
| } |
| |
| template <typename T> |
| const GRState *GRState::remove() const { |
| return getStateManager().remove<T>(this); |
| } |
| |
| template<typename T> |
| const GRState *GRState::set(typename GRStateTrait<T>::data_type D) const { |
| return getStateManager().set<T>(this, D); |
| } |
| |
| template<typename T> |
| const GRState *GRState::set(typename GRStateTrait<T>::key_type K, |
| typename GRStateTrait<T>::value_type E) const { |
| return getStateManager().set<T>(this, K, E, get_context<T>()); |
| } |
| |
| template<typename T> |
| const GRState *GRState::set(typename GRStateTrait<T>::key_type K, |
| typename GRStateTrait<T>::value_type E, |
| typename GRStateTrait<T>::context_type C) const { |
| return getStateManager().set<T>(this, K, E, C); |
| } |
| |
| template <typename CB> |
| CB GRState::scanReachableSymbols(SVal val) const { |
| CB cb(this); |
| scanReachableSymbols(val, cb); |
| return cb; |
| } |
| |
| template <typename CB> |
| CB GRState::scanReachableSymbols(const SVal *beg, const SVal *end) const { |
| CB cb(this); |
| scanReachableSymbols(beg, end, cb); |
| return cb; |
| } |
| |
| template <typename CB> |
| CB GRState::scanReachableSymbols(const MemRegion * const *beg, |
| const MemRegion * const *end) const { |
| CB cb(this); |
| scanReachableSymbols(beg, end, cb); |
| return cb; |
| } |
| |
| } // end GR namespace |
| |
| } // end clang namespace |
| |
| #endif |