Coverage Report

Created: 2017-10-03 07:32

/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/tools/clang/lib/StaticAnalyzer/Core/ConstraintManager.cpp
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//== ConstraintManager.cpp - Constraints on symbolic values -----*- C++ -*--==//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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//  This file defined the interface to manage constraints on symbolic values.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
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using namespace clang;
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using namespace ento;
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6.87k
ConstraintManager::~ConstraintManager() {}
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static DefinedSVal getLocFromSymbol(const ProgramStateRef &State,
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                                    SymbolRef Sym) {
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  const MemRegion *R =
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      State->getStateManager().getRegionManager().getSymbolicRegion(Sym);
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  return loc::MemRegionVal(R);
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}
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ConditionTruthVal ConstraintManager::checkNull(ProgramStateRef State,
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                                               SymbolRef Sym) {
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  QualType Ty = Sym->getType();
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  DefinedSVal V = Loc::isLocType(Ty) ? getLocFromSymbol(State, Sym)
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                                     : nonloc::SymbolVal(Sym);
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  const ProgramStatePair &P = assumeDual(State, V);
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  if (
P.first && 0
!P.second0
)
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    return ConditionTruthVal(false);
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if (0
!P.first && 0
P.second0
)
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    return ConditionTruthVal(true);
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  return ConditionTruthVal();
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}