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//== SimpleConstraintManager.h ----------------------------------*- C++ -*--==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Code shared between BasicConstraintManager and RangeConstraintManager.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_ANALYSIS_SIMPLE_CONSTRAINT_MANAGER_H
#define LLVM_CLANG_ANALYSIS_SIMPLE_CONSTRAINT_MANAGER_H
#include "clang/Checker/PathSensitive/ConstraintManager.h"
#include "clang/Checker/PathSensitive/GRState.h"
namespace clang {
class SimpleConstraintManager : public ConstraintManager {
GRSubEngine &SU;
public:
SimpleConstraintManager(GRSubEngine &subengine) : SU(subengine) {}
virtual ~SimpleConstraintManager();
//===------------------------------------------------------------------===//
// Common implementation for the interface provided by ConstraintManager.
//===------------------------------------------------------------------===//
bool canReasonAbout(SVal X) const;
const GRState *Assume(const GRState *state, DefinedSVal Cond,
bool Assumption);
const GRState *Assume(const GRState *state, Loc Cond, bool Assumption);
const GRState *Assume(const GRState *state, NonLoc Cond, bool Assumption);
const GRState *AssumeSymRel(const GRState *state,
const SymExpr *LHS,
BinaryOperator::Opcode op,
const llvm::APSInt& Int);
const GRState *AssumeInBound(const GRState *state, DefinedSVal Idx,
DefinedSVal UpperBound,
bool Assumption);
protected:
//===------------------------------------------------------------------===//
// 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 const GRState *AssumeSymNE(const GRState *state, SymbolRef sym,
const llvm::APSInt& V,
const llvm::APSInt& Adjustment) = 0;
virtual const GRState *AssumeSymEQ(const GRState *state, SymbolRef sym,
const llvm::APSInt& V,
const llvm::APSInt& Adjustment) = 0;
virtual const GRState *AssumeSymLT(const GRState *state, SymbolRef sym,
const llvm::APSInt& V,
const llvm::APSInt& Adjustment) = 0;
virtual const GRState *AssumeSymGT(const GRState *state, SymbolRef sym,
const llvm::APSInt& V,
const llvm::APSInt& Adjustment) = 0;
virtual const GRState *AssumeSymLE(const GRState *state, SymbolRef sym,
const llvm::APSInt& V,
const llvm::APSInt& Adjustment) = 0;
virtual const GRState *AssumeSymGE(const GRState *state, SymbolRef sym,
const llvm::APSInt& V,
const llvm::APSInt& Adjustment) = 0;
//===------------------------------------------------------------------===//
// Internal implementation.
//===------------------------------------------------------------------===//
const GRState *AssumeAux(const GRState *state, Loc Cond,bool Assumption);
const GRState *AssumeAux(const GRState *state, NonLoc Cond, bool Assumption);
};
} // end clang namespace
#endif
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