llvm-project/llvm/lib/DebugInfo/PDB/DIA/DIAEnumSymbols.cpp

49 lines
1.6 KiB
C++

//==- DIAEnumSymbols.cpp - DIA Symbol Enumerator impl ------------*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/PDB/DIA/DIAEnumSymbols.h"
#include "llvm/DebugInfo/PDB/DIA/DIARawSymbol.h"
#include "llvm/DebugInfo/PDB/DIA/DIASession.h"
#include "llvm/DebugInfo/PDB/PDBSymbol.h"
using namespace llvm;
using namespace llvm::pdb;
DIAEnumSymbols::DIAEnumSymbols(const DIASession &PDBSession,
CComPtr<IDiaEnumSymbols> DiaEnumerator)
: Session(PDBSession), Enumerator(DiaEnumerator) {}
uint32_t DIAEnumSymbols::getChildCount() const {
LONG Count = 0;
return (S_OK == Enumerator->get_Count(&Count)) ? Count : 0;
}
std::unique_ptr<PDBSymbol>
DIAEnumSymbols::getChildAtIndex(uint32_t Index) const {
CComPtr<IDiaSymbol> Item;
if (S_OK != Enumerator->Item(Index, &Item))
return nullptr;
std::unique_ptr<DIARawSymbol> RawSymbol(new DIARawSymbol(Session, Item));
return std::unique_ptr<PDBSymbol>(PDBSymbol::create(Session, std::move(RawSymbol)));
}
std::unique_ptr<PDBSymbol> DIAEnumSymbols::getNext() {
CComPtr<IDiaSymbol> Item;
ULONG NumFetched = 0;
if (S_OK != Enumerator->Next(1, &Item, &NumFetched))
return nullptr;
std::unique_ptr<DIARawSymbol> RawSymbol(new DIARawSymbol(Session, Item));
return std::unique_ptr<PDBSymbol>(
PDBSymbol::create(Session, std::move(RawSymbol)));
}
void DIAEnumSymbols::reset() { Enumerator->Reset(); }