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+//== ValueManager.h - Aggregate manager of symbols and SVals ----*- 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 ValueManager, a class that manages symbolic values
+// and SVals created for use by GRExprEngine and related classes. It
+// wraps and owns SymbolManager, MemRegionManager, and BasicValueFactory.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_ANALYSIS_AGGREGATE_VALUE_MANAGER_H
+#define LLVM_CLANG_ANALYSIS_AGGREGATE_VALUE_MANAGER_H
+
+#include "llvm/ADT/OwningPtr.h"
+#include "clang/Checker/PathSensitive/MemRegion.h"
+#include "clang/Checker/PathSensitive/SVals.h"
+#include "clang/Checker/PathSensitive/BasicValueFactory.h"
+#include "clang/Checker/PathSensitive/SymbolManager.h"
+#include "clang/Checker/PathSensitive/SValuator.h"
+
+namespace llvm { class BumpPtrAllocator; }
+
+namespace clang {
+
+class GRStateManager;
+
+class ValueManager {
+
+ ASTContext &Context;
+ BasicValueFactory BasicVals;
+
+ /// SymMgr - Object that manages the symbol information.
+ SymbolManager SymMgr;
+
+ /// SVator - SValuator object that creates SVals from expressions.
+ llvm::OwningPtr<SValuator> SVator;
+
+ MemRegionManager MemMgr;
+
+ GRStateManager &StateMgr;
+
+ const QualType ArrayIndexTy;
+ const unsigned ArrayIndexWidth;
+
+public:
+ ValueManager(llvm::BumpPtrAllocator &alloc, ASTContext &context,
+ GRStateManager &stateMgr)
+ : Context(context), BasicVals(context, alloc),
+ SymMgr(context, BasicVals, alloc),
+ MemMgr(context, alloc), StateMgr(stateMgr),
+ ArrayIndexTy(context.IntTy),
+ ArrayIndexWidth(context.getTypeSize(ArrayIndexTy)) {
+ // FIXME: Generalize later.
+ SVator.reset(clang::CreateSimpleSValuator(*this));
+ }
+
+ // Accessors to submanagers.
+
+ ASTContext &getContext() { return Context; }
+ const ASTContext &getContext() const { return Context; }
+
+ GRStateManager &getStateManager() { return StateMgr; }
+
+ BasicValueFactory &getBasicValueFactory() { return BasicVals; }
+ const BasicValueFactory &getBasicValueFactory() const { return BasicVals; }
+
+ SymbolManager &getSymbolManager() { return SymMgr; }
+ const SymbolManager &getSymbolManager() const { return SymMgr; }
+
+ SValuator &getSValuator() { return *SVator.get(); }
+
+ MemRegionManager &getRegionManager() { return MemMgr; }
+ const MemRegionManager &getRegionManager() const { return MemMgr; }
+
+ // Forwarding methods to SymbolManager.
+
+ const SymbolConjured* getConjuredSymbol(const Stmt* E, QualType T,
+ unsigned VisitCount,
+ const void* SymbolTag = 0) {
+ return SymMgr.getConjuredSymbol(E, T, VisitCount, SymbolTag);
+ }
+
+ const SymbolConjured* getConjuredSymbol(const Expr* E, unsigned VisitCount,
+ const void* SymbolTag = 0) {
+ return SymMgr.getConjuredSymbol(E, VisitCount, SymbolTag);
+ }
+
+ /// makeZeroVal - Construct an SVal representing '0' for the specified type.
+ DefinedOrUnknownSVal makeZeroVal(QualType T);
+
+ /// getRegionValueSymbolVal - make a unique symbol for value of R.
+ DefinedOrUnknownSVal getRegionValueSymbolVal(const MemRegion *R,
+ QualType T = QualType());
+
+ DefinedOrUnknownSVal getConjuredSymbolVal(const void *SymbolTag,
+ const Expr *E, unsigned Count);
+ DefinedOrUnknownSVal getConjuredSymbolVal(const void *SymbolTag,
+ const Expr *E, QualType T,
+ unsigned Count);
+
+ DefinedOrUnknownSVal getDerivedRegionValueSymbolVal(SymbolRef parentSymbol,
+ const TypedRegion *R);
+
+ DefinedSVal getFunctionPointer(const FunctionDecl *FD);
+
+ DefinedSVal getBlockPointer(const BlockDecl *BD, CanQualType locTy,
+ const LocationContext *LC);
+
+ NonLoc makeCompoundVal(QualType T, llvm::ImmutableList<SVal> Vals) {
+ return nonloc::CompoundVal(BasicVals.getCompoundValData(T, Vals));
+ }
+
+ NonLoc makeLazyCompoundVal(const void *store, const TypedRegion *R) {
+ return nonloc::LazyCompoundVal(BasicVals.getLazyCompoundValData(store, R));
+ }
+
+ NonLoc makeZeroArrayIndex() {
+ return nonloc::ConcreteInt(BasicVals.getValue(0, ArrayIndexTy));
+ }
+
+ NonLoc makeArrayIndex(uint64_t idx) {
+ return nonloc::ConcreteInt(BasicVals.getValue(idx, ArrayIndexTy));
+ }
+
+ SVal convertToArrayIndex(SVal V);
+
+ nonloc::ConcreteInt makeIntVal(const IntegerLiteral* I) {
+ return nonloc::ConcreteInt(BasicVals.getValue(I->getValue(),
+ I->getType()->isUnsignedIntegerType()));
+ }
+
+ nonloc::ConcreteInt makeIntVal(const llvm::APSInt& V) {
+ return nonloc::ConcreteInt(BasicVals.getValue(V));
+ }
+
+ loc::ConcreteInt makeIntLocVal(const llvm::APSInt &v) {
+ return loc::ConcreteInt(BasicVals.getValue(v));
+ }
+
+ NonLoc makeIntVal(const llvm::APInt& V, bool isUnsigned) {
+ return nonloc::ConcreteInt(BasicVals.getValue(V, isUnsigned));
+ }
+
+ DefinedSVal makeIntVal(uint64_t X, QualType T) {
+ if (Loc::IsLocType(T))
+ return loc::ConcreteInt(BasicVals.getValue(X, T));
+
+ return nonloc::ConcreteInt(BasicVals.getValue(X, T));
+ }
+
+ NonLoc makeIntVal(uint64_t X, bool isUnsigned) {
+ return nonloc::ConcreteInt(BasicVals.getIntValue(X, isUnsigned));
+ }
+
+ NonLoc makeIntValWithPtrWidth(uint64_t X, bool isUnsigned) {
+ return nonloc::ConcreteInt(BasicVals.getIntWithPtrWidth(X, isUnsigned));
+ }
+
+ NonLoc makeIntVal(uint64_t X, unsigned BitWidth, bool isUnsigned) {
+ return nonloc::ConcreteInt(BasicVals.getValue(X, BitWidth, isUnsigned));
+ }
+
+ NonLoc makeLocAsInteger(Loc V, unsigned Bits) {
+ return nonloc::LocAsInteger(BasicVals.getPersistentSValWithData(V, Bits));
+ }
+
+ NonLoc makeNonLoc(const SymExpr *lhs, BinaryOperator::Opcode op,
+ const llvm::APSInt& rhs, QualType T);
+
+ NonLoc makeNonLoc(const SymExpr *lhs, BinaryOperator::Opcode op,
+ const SymExpr *rhs, QualType T);
+
+ NonLoc makeTruthVal(bool b, QualType T) {
+ return nonloc::ConcreteInt(BasicVals.getTruthValue(b, T));
+ }
+
+ NonLoc makeTruthVal(bool b) {
+ return nonloc::ConcreteInt(BasicVals.getTruthValue(b));
+ }
+
+ Loc makeNull() {
+ return loc::ConcreteInt(BasicVals.getZeroWithPtrWidth());
+ }
+
+ Loc makeLoc(SymbolRef Sym) {
+ return loc::MemRegionVal(MemMgr.getSymbolicRegion(Sym));
+ }
+
+ Loc makeLoc(const MemRegion* R) {
+ return loc::MemRegionVal(R);
+ }
+
+ Loc makeLoc(const AddrLabelExpr* E) {
+ return loc::GotoLabel(E->getLabel());
+ }
+
+ Loc makeLoc(const llvm::APSInt& V) {
+ return loc::ConcreteInt(BasicVals.getValue(V));
+ }
+};
+} // end clang namespace
+#endif
+
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