45 lines · cpp
1//===- DIAEnumTables.cpp - DIA Table 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/DIAEnumTables.h"10#include "llvm/DebugInfo/PDB/DIA/DIATable.h"11 12using namespace llvm;13using namespace llvm::pdb;14 15DIAEnumTables::DIAEnumTables(CComPtr<IDiaEnumTables> DiaEnumerator)16 : Enumerator(DiaEnumerator) {}17 18uint32_t DIAEnumTables::getChildCount() const {19 LONG Count = 0;20 return (S_OK == Enumerator->get_Count(&Count)) ? Count : 0;21}22 23std::unique_ptr<IPDBTable>24DIAEnumTables::getChildAtIndex(uint32_t Index) const {25 CComPtr<IDiaTable> Item;26 VARIANT Var;27 Var.vt = VT_UINT;28 Var.uintVal = Index;29 if (S_OK != Enumerator->Item(Var, &Item))30 return nullptr;31 32 return std::unique_ptr<IPDBTable>(new DIATable(Item));33}34 35std::unique_ptr<IPDBTable> DIAEnumTables::getNext() {36 CComPtr<IDiaTable> Item;37 ULONG CeltFetched = 0;38 if (S_OK != Enumerator->Next(1, &Item, &CeltFetched))39 return nullptr;40 41 return std::unique_ptr<IPDBTable>(new DIATable(Item));42}43 44void DIAEnumTables::reset() { Enumerator->Reset(); }45