LLVM  3.7.0
ConcreteSymbolEnumerator.h
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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 "IPDBEnumChildren.h"
14 #include "llvm/Support/Casting.h"
15 #include <memory>
16 
17 namespace llvm {
18 
19 template <typename ChildType>
20 class ConcreteSymbolEnumerator : public IPDBEnumChildren<ChildType> {
21 public:
22  ConcreteSymbolEnumerator(std::unique_ptr<IPDBEnumSymbols> SymbolEnumerator)
23  : Enumerator(std::move(SymbolEnumerator)) {}
24 
26 
27  uint32_t getChildCount() const override {
28  return Enumerator->getChildCount();
29  }
30 
31  std::unique_ptr<ChildType> getChildAtIndex(uint32_t Index) const override {
32  std::unique_ptr<PDBSymbol> Child = Enumerator->getChildAtIndex(Index);
33  return make_concrete_child(std::move(Child));
34  }
35 
36  std::unique_ptr<ChildType> getNext() override {
37  std::unique_ptr<PDBSymbol> Child = Enumerator->getNext();
38  return make_concrete_child(std::move(Child));
39  }
40 
41  void reset() override { Enumerator->reset(); }
42 
44  std::unique_ptr<IPDBEnumSymbols> WrappedClone(Enumerator->clone());
45  return new ConcreteSymbolEnumerator<ChildType>(std::move(WrappedClone));
46  }
47 
48 private:
49  std::unique_ptr<ChildType>
50  make_concrete_child(std::unique_ptr<PDBSymbol> Child) const {
51  ChildType *ConcreteChild = dyn_cast_or_null<ChildType>(Child.release());
52  return std::unique_ptr<ChildType>(ConcreteChild);
53  }
54 
55  std::unique_ptr<IPDBEnumSymbols> Enumerator;
56 };
57 }
58 
59 #endif
uint32_t getChildCount() const override
ConcreteSymbolEnumerator(std::unique_ptr< IPDBEnumSymbols > SymbolEnumerator)
ConcreteSymbolEnumerator< ChildType > * clone() const override
std::unique_ptr< ChildType > getNext() override
std::unique_ptr< ChildType > getChildAtIndex(uint32_t Index) const override