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