LLVM  10.0.0svn
DIAEnumSymbols.cpp
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1 //==- DIAEnumSymbols.cpp - DIA Symbol Enumerator impl ------------*- 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 
13 
14 using namespace llvm;
15 using namespace llvm::pdb;
16 
18  CComPtr<IDiaEnumSymbols> DiaEnumerator)
19  : Session(PDBSession), Enumerator(DiaEnumerator) {}
20 
22  LONG Count = 0;
23  return (S_OK == Enumerator->get_Count(&Count)) ? Count : 0;
24 }
25 
26 std::unique_ptr<PDBSymbol>
28  CComPtr<IDiaSymbol> Item;
29  if (S_OK != Enumerator->Item(Index, &Item))
30  return nullptr;
31 
32  std::unique_ptr<DIARawSymbol> RawSymbol(new DIARawSymbol(Session, Item));
33  return std::unique_ptr<PDBSymbol>(PDBSymbol::create(Session, std::move(RawSymbol)));
34 }
35 
36 std::unique_ptr<PDBSymbol> DIAEnumSymbols::getNext() {
37  CComPtr<IDiaSymbol> Item;
38  ULONG NumFetched = 0;
39  if (S_OK != Enumerator->Next(1, &Item, &NumFetched))
40  return nullptr;
41 
42  std::unique_ptr<DIARawSymbol> RawSymbol(new DIARawSymbol(Session, Item));
43  return std::unique_ptr<PDBSymbol>(
44  PDBSymbol::create(Session, std::move(RawSymbol)));
45 }
46 
47 void DIAEnumSymbols::reset() { Enumerator->Reset(); }
This class represents lattice values for constants.
Definition: AllocatorList.h:23
DIAEnumSymbols(const DIASession &Session, CComPtr< IDiaEnumSymbols > DiaEnumerator)
uint32_t getChildCount() const override
std::unique_ptr< PDBSymbol > getChildAtIndex(uint32_t Index) const override
static std::unique_ptr< PDBSymbol > create(const IPDBSession &PDBSession, std::unique_ptr< IPDBRawSymbol > RawSymbol)
Definition: PDBSymbol.cpp:102
std::unique_ptr< PDBSymbol > getNext() override