LLVM 20.0.0git
DIADataStream.cpp
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1//===- DIADataStream.cpp - DIA implementation of IPDBDataStream -*- 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
11
12using namespace llvm;
13using namespace llvm::pdb;
14
15DIADataStream::DIADataStream(CComPtr<IDiaEnumDebugStreamData> DiaStreamData)
16 : StreamData(DiaStreamData) {}
17
19 LONG Count = 0;
20 return (S_OK == StreamData->get_Count(&Count)) ? Count : 0;
21}
22
23std::string DIADataStream::getName() const {
24 return invokeBstrMethod(*StreamData, &IDiaEnumDebugStreamData::get_name);
25}
26
27std::optional<DIADataStream::RecordType>
30 DWORD RecordSize = 0;
31 StreamData->Item(Index, 0, &RecordSize, nullptr);
32 if (RecordSize == 0)
33 return std::nullopt;
34
35 Record.resize(RecordSize);
36 if (S_OK != StreamData->Item(Index, RecordSize, &RecordSize, &Record[0]))
37 return std::nullopt;
38 return Record;
39}
40
42 Record.clear();
43 DWORD RecordSize = 0;
44 ULONG CountFetched = 0;
45 StreamData->Next(1, 0, &RecordSize, nullptr, &CountFetched);
46 if (RecordSize == 0)
47 return false;
48
49 Record.resize(RecordSize);
50 if (S_OK ==
51 StreamData->Next(1, RecordSize, &RecordSize, &Record[0], &CountFetched))
52 return false;
53 return true;
54}
55
56void DIADataStream::reset() { StreamData->Reset(); }
std::string invokeBstrMethod(Obj &Object, HRESULT(__stdcall Obj::*Func)(BSTR *))
Definition: DIAUtils.h:16
std::optional< RecordType > getItemAtIndex(uint32_t Index) const override
bool getNext(RecordType &Record) override
std::string getName() const override
uint32_t getRecordCount() const override
DIADataStream(CComPtr< IDiaEnumDebugStreamData > DiaStreamData)
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18