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  1. //===- DynamicCastInfo.h - Runtime cast information -------------*- C++ -*-===//
  2. //
  3. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  4. // See https://llvm.org/LICENSE.txt for license information.
  5. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  6. //
  7. //===----------------------------------------------------------------------===//
  8.  
  9. #ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICCASTINFO_H
  10. #define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICCASTINFO_H
  11.  
  12. #include "clang/AST/Type.h"
  13.  
  14. namespace clang {
  15. namespace ento {
  16.  
  17. class DynamicCastInfo {
  18. public:
  19.   enum CastResult { Success, Failure };
  20.  
  21.   DynamicCastInfo(QualType from, QualType to, CastResult resultKind)
  22.       : From(from), To(to), ResultKind(resultKind) {}
  23.  
  24.   QualType from() const { return From; }
  25.   QualType to() const { return To; }
  26.  
  27.   bool equals(QualType from, QualType to) const {
  28.     return From == from && To == to;
  29.   }
  30.  
  31.   bool succeeds() const { return ResultKind == CastResult::Success; }
  32.   bool fails() const { return ResultKind == CastResult::Failure; }
  33.  
  34.   bool operator==(const DynamicCastInfo &RHS) const {
  35.     return From == RHS.From && To == RHS.To;
  36.   }
  37.   bool operator<(const DynamicCastInfo &RHS) const {
  38.     return From < RHS.From && To < RHS.To;
  39.   }
  40.  
  41.   void Profile(llvm::FoldingSetNodeID &ID) const {
  42.     ID.Add(From);
  43.     ID.Add(To);
  44.     ID.AddInteger(ResultKind);
  45.   }
  46.  
  47. private:
  48.   QualType From, To;
  49.   CastResult ResultKind;
  50. };
  51.  
  52. } // namespace ento
  53. } // namespace clang
  54.  
  55. #endif // LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_DYNAMICCASTINFO_H
  56.