text: //===- DynamicCastInfo.h - Runtime cast information -------------*- C++ -*-===//
  //
  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  // See https://llvm.org/LICENSE.txt for license information.
  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  //
  //===----------------------------------------------------------------------===//
  
  #ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICCASTINFO_H
  #define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICCASTINFO_H
  
  #include "clang/AST/Type.h"
  
  namespace clang {
  namespace ento {
  
  class DynamicCastInfo {
  public:
    enum CastResult { Success, Failure };
  
    DynamicCastInfo(QualType from, QualType to, CastResult resultKind)
        : From(from), To(to), ResultKind(resultKind) {}
  
    QualType from() const { return From; }
    QualType to() const { return To; }
  
    bool equals(QualType from, QualType to) const {
      return From == from && To == to;
    }
  
    bool succeeds() const { return ResultKind == CastResult::Success; }
    bool fails() const { return ResultKind == CastResult::Failure; }
  
    bool operator==(const DynamicCastInfo &RHS) const {
      return From == RHS.From && To == RHS.To;
    }
    bool operator<(const DynamicCastInfo &RHS) const {
      return From < RHS.From && To < RHS.To;
    }
  
    void Profile(llvm::FoldingSetNodeID &ID) const {
      ID.Add(From);
      ID.Add(To);
      ID.AddInteger(ResultKind);
    }
  
  private:
    QualType From, To;
    CastResult ResultKind;
  };
  
  } // namespace ento
  } // namespace clang
  
  #endif // LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICCASTINFO_H
  