1//===- ConcreteSymbolEnumerator.h -------------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLVM_DEBUGINFO_PDB_CONCRETESYMBOLENUMERATOR_H
11#define LLVM_DEBUGINFO_PDB_CONCRETESYMBOLENUMERATOR_H
12
13#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
14#include "llvm/DebugInfo/PDB/PDBTypes.h"
15#include "llvm/Support/Casting.h"
16#include <algorithm>
17#include <cstdint>
18#include <memory>
19
20namespace llvm {
21namespace pdb {
22
23template <typename ChildType>
24class ConcreteSymbolEnumerator : public IPDBEnumChildren<ChildType> {
25public:
26  ConcreteSymbolEnumerator(std::unique_ptr<IPDBEnumSymbols> SymbolEnumerator)
27      : Enumerator(std::move(SymbolEnumerator)) {}
28
29  ~ConcreteSymbolEnumerator() override = default;
30
31  uint32_t getChildCount() const override {
32    return Enumerator->getChildCount();
33  }
34
35  std::unique_ptr<ChildType> getChildAtIndex(uint32_t Index) const override {
36    std::unique_ptr<PDBSymbol> Child = Enumerator->getChildAtIndex(Index);
37    return unique_dyn_cast_or_null<ChildType>(Child);
38  }
39
40  std::unique_ptr<ChildType> getNext() override {
41    return unique_dyn_cast_or_null<ChildType>(Enumerator->getNext());
42  }
43
44  void reset() override { Enumerator->reset(); }
45
46  ConcreteSymbolEnumerator<ChildType> *clone() const override {
47    std::unique_ptr<IPDBEnumSymbols> WrappedClone(Enumerator->clone());
48    return new ConcreteSymbolEnumerator<ChildType>(std::move(WrappedClone));
49  }
50
51private:
52
53  std::unique_ptr<IPDBEnumSymbols> Enumerator;
54};
55
56} // end namespace pdb
57} // end namespace llvm
58
59#endif // LLVM_DEBUGINFO_PDB_CONCRETESYMBOLENUMERATOR_H
60