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//== RangedConstraintManager.h ----------------------------------*- C++ -*--==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Ranged constraint manager, built on SimpleConstraintManager.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LIB_STATICANALYZER_CORE_RANGEDCONSTRAINTMANAGER_H
#define LLVM_CLANG_LIB_STATICANALYZER_CORE_RANGEDCONSTRAINTMANAGER_H
#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/SimpleConstraintManager.h"
namespace clang {
namespace ento {
class RangedConstraintManager : public SimpleConstraintManager {
public:
RangedConstraintManager(SubEngine *SE, SValBuilder &SB)
: SimpleConstraintManager(SE, SB) {}
~RangedConstraintManager() override;
//===------------------------------------------------------------------===//
// Implementation for interface from SimpleConstraintManager.
//===------------------------------------------------------------------===//
ProgramStateRef assumeSym(ProgramStateRef State, SymbolRef Sym,
bool Assumption) override;
ProgramStateRef assumeSymInclusiveRange(ProgramStateRef State, SymbolRef Sym,
const llvm::APSInt &From,
const llvm::APSInt &To,
bool InRange) override;
ProgramStateRef assumeSymUnsupported(ProgramStateRef State, SymbolRef Sym,
bool Assumption) override;
protected:
/// Assume a constraint between a symbolic expression and a concrete integer.
virtual ProgramStateRef assumeSymRel(ProgramStateRef State, SymbolRef Sym,
BinaryOperator::Opcode op,
const llvm::APSInt &Int);
//===------------------------------------------------------------------===//
// Interface that subclasses must implement.
//===------------------------------------------------------------------===//
// Each of these is of the form "$Sym+Adj <> V", where "<>" is the comparison
// operation for the method being invoked.
virtual ProgramStateRef assumeSymNE(ProgramStateRef State, SymbolRef Sym,
const llvm::APSInt &V,
const llvm::APSInt &Adjustment) = 0;
virtual ProgramStateRef assumeSymEQ(ProgramStateRef State, SymbolRef Sym,
const llvm::APSInt &V,
const llvm::APSInt &Adjustment) = 0;
virtual ProgramStateRef assumeSymLT(ProgramStateRef State, SymbolRef Sym,
const llvm::APSInt &V,
const llvm::APSInt &Adjustment) = 0;
virtual ProgramStateRef assumeSymGT(ProgramStateRef State, SymbolRef Sym,
const llvm::APSInt &V,
const llvm::APSInt &Adjustment) = 0;
virtual ProgramStateRef assumeSymLE(ProgramStateRef State, SymbolRef Sym,
const llvm::APSInt &V,
const llvm::APSInt &Adjustment) = 0;
virtual ProgramStateRef assumeSymGE(ProgramStateRef State, SymbolRef Sym,
const llvm::APSInt &V,
const llvm::APSInt &Adjustment) = 0;
virtual ProgramStateRef assumeSymWithinInclusiveRange(
ProgramStateRef State, SymbolRef Sym, const llvm::APSInt &From,
const llvm::APSInt &To, const llvm::APSInt &Adjustment) = 0;
virtual ProgramStateRef assumeSymOutsideInclusiveRange(
ProgramStateRef State, SymbolRef Sym, const llvm::APSInt &From,
const llvm::APSInt &To, const llvm::APSInt &Adjustment) = 0;
//===------------------------------------------------------------------===//
// Internal implementation.
//===------------------------------------------------------------------===//
private:
static void computeAdjustment(SymbolRef &Sym, llvm::APSInt &Adjustment);
};
} // end GR namespace
} // end clang namespace
#endif
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