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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/DebugInfo/PDB/DIA/DIAEnumTables.h" 10 #include "llvm/DebugInfo/PDB/DIA/DIATable.h" 11 12 using namespace llvm; 13 using namespace llvm::pdb; 14 15 DIAEnumTables::DIAEnumTables(CComPtr<IDiaEnumTables> DiaEnumerator) 16 : Enumerator(DiaEnumerator) {} 17 18 uint32_t DIAEnumTables::getChildCount() const { 19 LONG Count = 0; 20 return (S_OK == Enumerator->get_Count(&Count)) ? Count : 0; 21 } 22 23 std::unique_ptr<IPDBTable> 24 DIAEnumTables::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 35 std::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 44 void DIAEnumTables::reset() { Enumerator->Reset(); } 45