1 //==- DIAEnumDebugStreams.cpp - DIA Debug Stream Enumerator impl -*- 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 #include "llvm/DebugInfo/PDB/PDBSymbol.h" 11 #include "llvm/DebugInfo/PDB/DIA/DIADataStream.h" 12 #include "llvm/DebugInfo/PDB/DIA/DIAEnumDebugStreams.h" 13 14 using namespace llvm; 15 using namespace llvm::pdb; 16 17 DIAEnumDebugStreams::DIAEnumDebugStreams( 18 CComPtr<IDiaEnumDebugStreams> DiaEnumerator) 19 : Enumerator(DiaEnumerator) {} 20 21 uint32_t DIAEnumDebugStreams::getChildCount() const { 22 LONG Count = 0; 23 return (S_OK == Enumerator->get_Count(&Count)) ? Count : 0; 24 } 25 26 std::unique_ptr<IPDBDataStream> 27 DIAEnumDebugStreams::getChildAtIndex(uint32_t Index) const { 28 CComPtr<IDiaEnumDebugStreamData> Item; 29 VARIANT VarIndex; 30 VarIndex.vt = VT_I4; 31 VarIndex.lVal = Index; 32 if (S_OK != Enumerator->Item(VarIndex, &Item)) 33 return nullptr; 34 35 return std::unique_ptr<IPDBDataStream>(new DIADataStream(Item)); 36 } 37 38 std::unique_ptr<IPDBDataStream> DIAEnumDebugStreams::getNext() { 39 CComPtr<IDiaEnumDebugStreamData> Item; 40 ULONG NumFetched = 0; 41 if (S_OK != Enumerator->Next(1, &Item, &NumFetched)) 42 return nullptr; 43 44 return std::unique_ptr<IPDBDataStream>(new DIADataStream(Item)); 45 } 46 47 void DIAEnumDebugStreams::reset() { Enumerator->Reset(); } 48 49 DIAEnumDebugStreams *DIAEnumDebugStreams::clone() const { 50 CComPtr<IDiaEnumDebugStreams> EnumeratorClone; 51 if (S_OK != Enumerator->Clone(&EnumeratorClone)) 52 return nullptr; 53 return new DIAEnumDebugStreams(EnumeratorClone); 54 } 55
