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Diffstat (limited to 'include/clang/Checker/PathSensitive/GRState.h')
| -rw-r--r-- | include/clang/Checker/PathSensitive/GRState.h | 756 |
1 files changed, 756 insertions, 0 deletions
diff --git a/include/clang/Checker/PathSensitive/GRState.h b/include/clang/Checker/PathSensitive/GRState.h new file mode 100644 index 0000000..4e44697 --- /dev/null +++ b/include/clang/Checker/PathSensitive/GRState.h @@ -0,0 +1,756 @@ +//== GRState*h - Path-Sens. "State" for tracking valuues -----*- 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_ANALYSIS_VALUESTATE_H +#define LLVM_CLANG_ANALYSIS_VALUESTATE_H + +// FIXME: Reduce the number of includes. + +#include "clang/Checker/PathSensitive/Environment.h" +#include "clang/Checker/PathSensitive/Store.h" +#include "clang/Checker/PathSensitive/ConstraintManager.h" +#include "clang/Checker/PathSensitive/ValueManager.h" +#include "clang/Checker/PathSensitive/GRCoreEngine.h" +#include "clang/AST/Expr.h" +#include "clang/AST/Decl.h" +#include "clang/AST/ASTContext.h" +#include "clang/Analysis/Analyses/LiveVariables.h" +#include "llvm/Support/Casting.h" +#include "llvm/System/DataTypes.h" +#include "llvm/ADT/APSInt.h" +#include "llvm/ADT/FoldingSet.h" +#include "llvm/ADT/ImmutableMap.h" +#include "llvm/ADT/SmallVector.h" +#include "llvm/ADT/DenseSet.h" +#include "llvm/Support/Allocator.h" +#include "llvm/Support/raw_ostream.h" + +#include <functional> + +namespace clang { + +class GRStateManager; +class Checker; + +typedef ConstraintManager* (*ConstraintManagerCreator)(GRStateManager&, + GRSubEngine&); +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; + } +}; + +//===----------------------------------------------------------------------===// +// GRState- An ImmutableMap type Stmt*/Decl*/Symbols to SVals. +//===----------------------------------------------------------------------===// + +class GRStateManager; + +/// GRState - This class encapsulates the actual data values for +/// for a "state" in our symbolic value tracking. It 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; + + friend class GRStateManager; + + GRStateManager *StateMgr; + Environment Env; + Store St; + + // FIXME: Make these private. +public: + GenericDataMap GDM; + +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; + } + + /// getAnalysisContext - Return the AnalysisContext associated with this + /// state. + AnalysisContext &getAnalysisContext() const { + return Env.getAnalysisContext(); + } + + /// 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. + static void Profile(llvm::FoldingSetNodeID& ID, const GRState* V) { + // FIXME: Do we need to include the AnalysisContext in the profile? + 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); + } + + SVal LookupExpr(Expr* E) const { + return Env.LookupExpr(E); + } + + /// 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; + + 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 GRExprEngine/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" are two values: + // + // (a) "isFeasible" is set to true or false to indicate whether or not + // the assumption is feasible. + // + // (b) A new GRState object with the added constraints. + // + // FIXME: (a) should probably disappear since it is redundant with (b). + // (i.e., (b) could just be set to NULL). + // + + const GRState *Assume(DefinedOrUnknownSVal cond, bool assumption) const; + + 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 'state' plus the bindings for the CompoundLiteral. 'R' is the region + /// for the compound literal and 'BegInit' and 'EndInit' represent an + /// array of initializer values. + const GRState *bindCompoundLiteral(const CompoundLiteralExpr* CL, + const LocationContext *LC, + SVal V) const; + + const GRState *BindExpr(const Stmt *S, SVal V, bool Invalidate = true) 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 *unbindLoc(Loc LV) const; + + /// Get the lvalue for a variable reference. + SVal getLValue(const VarDecl *D, const LocationContext *LC) const; + + /// Get the lvalue for a StringLiteral. + SVal getLValue(const StringLiteral *literal) const; + + SVal 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; + + SVal getSVal(const Stmt* Ex) const; + + SVal getSValAsScalarOrLoc(const Stmt *Ex) const; + + SVal getSVal(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 *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, const char *nl = "\n", + const char *sep = "") const; + + void printStdErr() const; + + void printDOT(llvm::raw_ostream& Out) 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 GRExprEngine; // FIXME: Remove. +private: + 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; + + /// ValueMgr - Object that manages the data for all created SVals. + ValueManager ValueMgr; + + /// Alloc - A BumpPtrAllocator to allocate states. + llvm::BumpPtrAllocator &Alloc; + +public: + GRStateManager(ASTContext& Ctx, + StoreManagerCreator CreateStoreManager, + ConstraintManagerCreator CreateConstraintManager, + llvm::BumpPtrAllocator& alloc, + GRSubEngine &subeng) + : EnvMgr(alloc), + GDMFactory(alloc), + ValueMgr(alloc, Ctx, *this), + Alloc(alloc) { + StoreMgr.reset((*CreateStoreManager)(*this)); + ConstraintMgr.reset((*CreateConstraintManager)(*this, subeng)); + } + + ~GRStateManager(); + + const GRState *getInitialState(const LocationContext *InitLoc); + + ASTContext &getContext() { return ValueMgr.getContext(); } + const ASTContext &getContext() const { return ValueMgr.getContext(); } + + BasicValueFactory &getBasicVals() { + return ValueMgr.getBasicValueFactory(); + } + const BasicValueFactory& getBasicVals() const { + return ValueMgr.getBasicValueFactory(); + } + + SymbolManager &getSymbolManager() { + return ValueMgr.getSymbolManager(); + } + const SymbolManager &getSymbolManager() const { + return ValueMgr.getSymbolManager(); + } + + ValueManager &getValueManager() { return ValueMgr; } + const ValueManager &getValueManager() const { return ValueMgr; } + + llvm::BumpPtrAllocator& getAllocator() { return Alloc; } + + MemRegionManager& getRegionManager() { + return ValueMgr.getRegionManager(); + } + const MemRegionManager& getRegionManager() const { + return ValueMgr.getRegionManager(); + } + + StoreManager& getStoreManager() { return *StoreMgr; } + ConstraintManager& getConstraintManager() { return *ConstraintMgr; } + + const GRState* RemoveDeadBindings(const GRState* St, Stmt* Loc, + SymbolReaper& SymReaper); + +public: + + SVal ArrayToPointer(Loc Array) { + return StoreMgr->ArrayToPointer(Array); + } + + // Methods that manipulate the GDM. + const GRState* addGDM(const GRState* St, void* Key, void* Data); + + // Methods that query & manipulate the Store. + + void iterBindings(const GRState* state, StoreManager::BindingsHandler& F) { + StoreMgr->iterBindings(state->getStore(), F); + } + + const GRState* getPersistentState(GRState& Impl); + + bool isEqual(const GRState* state, const Expr* Ex, const llvm::APSInt& V); + bool isEqual(const GRState* state, const Expr* Ex, uint64_t); + + //==---------------------------------------------------------------------==// + // 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))); + } + + + 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::AssumeInBound(DefinedOrUnknownSVal Idx, + DefinedOrUnknownSVal UpperBound, + bool Assumption) const { + if (Idx.isUnknown() || UpperBound.isUnknown()) + return this; + + ConstraintManager &CM = *getStateManager().ConstraintMgr; + return CM.AssumeInBound(this, cast<DefinedSVal>(Idx), + cast<DefinedSVal>(UpperBound), Assumption); +} + +inline const GRState * +GRState::bindCompoundLiteral(const CompoundLiteralExpr* CL, + const LocationContext *LC, SVal V) const { + Store new_store = + getStateManager().StoreMgr->BindCompoundLiteral(St, CL, LC, V); + return makeWithStore(new_store); +} + +inline const GRState *GRState::bindDecl(const VarRegion* VR, SVal IVal) const { + Store new_store = getStateManager().StoreMgr->BindDecl(St, VR, IVal); + return makeWithStore(new_store); +} + +inline const GRState *GRState::bindDeclWithNoInit(const VarRegion* VR) const { + Store new_store = getStateManager().StoreMgr->BindDeclWithNoInit(St, VR); + return makeWithStore(new_store); +} + +inline const GRState *GRState::bindLoc(Loc LV, SVal V) const { + Store new_store = getStateManager().StoreMgr->Bind(St, LV, V); + return makeWithStore(new_store); +} + +inline const GRState *GRState::bindLoc(SVal LV, SVal V) const { + return !isa<Loc>(LV) ? this : bindLoc(cast<Loc>(LV), V); +} + +inline SVal GRState::getLValue(const VarDecl* VD, + const LocationContext *LC) const { + return getStateManager().StoreMgr->getLValueVar(VD, LC); +} + +inline SVal GRState::getLValue(const StringLiteral *literal) const { + return getStateManager().StoreMgr->getLValueString(literal); +} + +inline SVal 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{ + return getStateManager().StoreMgr->getLValueElement(ElementType, Idx, Base); +} + +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().ValueMgr); +} + +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::getSVal(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::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 clang namespace + +#endif |
