1 //===- DIADataStream.cpp - DIA implementation of IPDBDataStream -*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/DebugInfo/PDB/DIA/DIADataStream.h"
12 #include "llvm/Support/ConvertUTF.h"
16 DIADataStream::DIADataStream(CComPtr<IDiaEnumDebugStreamData> DiaStreamData)
17 : StreamData(DiaStreamData) {}
19 uint32_t DIADataStream::getRecordCount() const {
21 return (S_OK == StreamData->get_Count(&Count)) ? Count : 0;
24 std::string DIADataStream::getName() const {
26 if (S_OK != StreamData->get_name(&Name16))
30 llvm::ArrayRef<char> Name16Bytes(reinterpret_cast<char *>(Name16.m_str),
32 if (!llvm::convertUTF16ToUTF8String(Name16Bytes, Name8))
37 llvm::Optional<DIADataStream::RecordType>
38 DIADataStream::getItemAtIndex(uint32_t Index) const {
41 StreamData->Item(Index, 0, &RecordSize, nullptr);
43 return llvm::Optional<RecordType>();
45 Record.resize(RecordSize);
46 if (S_OK != StreamData->Item(Index, RecordSize, &RecordSize, &Record[0]))
47 return llvm::Optional<RecordType>();
51 bool DIADataStream::getNext(RecordType &Record) {
54 ULONG CountFetched = 0;
55 StreamData->Next(1, 0, &RecordSize, nullptr, &CountFetched);
59 Record.resize(RecordSize);
61 StreamData->Next(1, RecordSize, &RecordSize, &Record[0], &CountFetched))
66 void DIADataStream::reset() { StreamData->Reset(); }
68 DIADataStream *DIADataStream::clone() const {
69 CComPtr<IDiaEnumDebugStreamData> EnumeratorClone;
70 if (S_OK != StreamData->Clone(&EnumeratorClone))
73 return new DIADataStream(EnumeratorClone);