llvm-for-llvmta/lib/DebugInfo/PDB/DIA/DIAEnumLineNumbers.cpp

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2022-04-25 10:02:23 +02:00
//==- DIAEnumLineNumbers.cpp - DIA Line Number Enumerator impl ---*- C++ -*-==//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/PDB/DIA/DIAEnumLineNumbers.h"
#include "llvm/DebugInfo/PDB/DIA/DIALineNumber.h"
#include "llvm/DebugInfo/PDB/PDBSymbol.h"
using namespace llvm;
using namespace llvm::pdb;
DIAEnumLineNumbers::DIAEnumLineNumbers(
CComPtr<IDiaEnumLineNumbers> DiaEnumerator)
: Enumerator(DiaEnumerator) {}
uint32_t DIAEnumLineNumbers::getChildCount() const {
LONG Count = 0;
return (S_OK == Enumerator->get_Count(&Count)) ? Count : 0;
}
std::unique_ptr<IPDBLineNumber>
DIAEnumLineNumbers::getChildAtIndex(uint32_t Index) const {
CComPtr<IDiaLineNumber> Item;
if (S_OK != Enumerator->Item(Index, &Item))
return nullptr;
return std::unique_ptr<IPDBLineNumber>(new DIALineNumber(Item));
}
std::unique_ptr<IPDBLineNumber> DIAEnumLineNumbers::getNext() {
CComPtr<IDiaLineNumber> Item;
ULONG NumFetched = 0;
if (S_OK != Enumerator->Next(1, &Item, &NumFetched))
return nullptr;
return std::unique_ptr<IPDBLineNumber>(new DIALineNumber(Item));
}
void DIAEnumLineNumbers::reset() { Enumerator->Reset(); }