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"
11 #include "llvm/Support/ConvertUTF.h"
15 DIADataStream::DIADataStream(CComPtr<IDiaEnumDebugStreamData> DiaStreamData)
16 : StreamData(DiaStreamData) {}
18 uint32_t DIADataStream::getRecordCount() const {
20 return (S_OK == StreamData->get_Count(&Count)) ? Count : 0;
23 std::string DIADataStream::getName() const {
25 if (S_OK != StreamData->get_name(&Name16))
29 llvm::ArrayRef<char> Name16Bytes(reinterpret_cast<char *>(Name16.m_str),
31 if (!llvm::convertUTF16ToUTF8String(Name16Bytes, Name8))
36 llvm::Optional<DIADataStream::RecordType>
37 DIADataStream::getItemAtIndex(uint32_t Index) const {
40 StreamData->Item(Index, 0, &RecordSize, nullptr);
42 return llvm::Optional<RecordType>();
44 Record.resize(RecordSize);
45 if (S_OK != StreamData->Item(Index, RecordSize, &RecordSize, &Record[0]))
46 return llvm::Optional<RecordType>();
50 bool DIADataStream::getNext(RecordType &Record) {
53 ULONG CountFetched = 0;
54 StreamData->Next(1, 0, &RecordSize, nullptr, &CountFetched);
58 Record.resize(RecordSize);
60 StreamData->Next(1, RecordSize, &RecordSize, &Record[0], &CountFetched))
65 void DIADataStream::reset() { StreamData->Reset(); }
67 DIADataStream *DIADataStream::clone() const {
68 CComPtr<IDiaEnumDebugStreamData> EnumeratorClone;
69 if (S_OK != StreamData->Clone(&EnumeratorClone))
72 return new DIADataStream(EnumeratorClone);