47 lines · cpp
1//==- DIAEnumDebugStreams.cpp - DIA Debug Stream 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-exception6//7//===----------------------------------------------------------------------===//8 9#include "llvm/DebugInfo/PDB/DIA/DIAEnumDebugStreams.h"10#include "llvm/DebugInfo/PDB/DIA/DIADataStream.h"11#include "llvm/DebugInfo/PDB/PDBSymbol.h"12 13using namespace llvm;14using namespace llvm::pdb;15 16DIAEnumDebugStreams::DIAEnumDebugStreams(17 CComPtr<IDiaEnumDebugStreams> DiaEnumerator)18 : Enumerator(DiaEnumerator) {}19 20uint32_t DIAEnumDebugStreams::getChildCount() const {21 LONG Count = 0;22 return (S_OK == Enumerator->get_Count(&Count)) ? Count : 0;23}24 25std::unique_ptr<IPDBDataStream>26DIAEnumDebugStreams::getChildAtIndex(uint32_t Index) const {27 CComPtr<IDiaEnumDebugStreamData> Item;28 VARIANT VarIndex;29 VarIndex.vt = VT_I4;30 VarIndex.lVal = Index;31 if (S_OK != Enumerator->Item(VarIndex, &Item))32 return nullptr;33 34 return std::unique_ptr<IPDBDataStream>(new DIADataStream(Item));35}36 37std::unique_ptr<IPDBDataStream> DIAEnumDebugStreams::getNext() {38 CComPtr<IDiaEnumDebugStreamData> Item;39 ULONG NumFetched = 0;40 if (S_OK != Enumerator->Next(1, &Item, &NumFetched))41 return nullptr;42 43 return std::unique_ptr<IPDBDataStream>(new DIADataStream(Item));44}45 46void DIAEnumDebugStreams::reset() { Enumerator->Reset(); }47