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//==- NativeEnumGlobals.cpp - Native Global 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/Native/NativeEnumGlobals.h"
#include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
#include "llvm/DebugInfo/PDB/Native/GlobalsStream.h"
#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
#include "llvm/DebugInfo/PDB/Native/SymbolStream.h"
#include "llvm/DebugInfo/PDB/PDBSymbol.h"
using namespace llvm;
using namespace llvm::codeview;
using namespace llvm::pdb;
NativeEnumGlobals::NativeEnumGlobals(NativeSession &PDBSession,
std::vector<codeview::SymbolKind> Kinds)
: Index(0), Session(PDBSession) {
GlobalsStream &GS = cantFail(Session.getPDBFile().getPDBGlobalsStream());
SymbolStream &SS = cantFail(Session.getPDBFile().getPDBSymbolStream());
for (uint32_t Off : GS.getGlobalsTable()) {
CVSymbol S = SS.readRecord(Off);
if (!llvm::is_contained(Kinds, S.kind()))
continue;
MatchOffsets.push_back(Off);
}
}
uint32_t NativeEnumGlobals::getChildCount() const {
return static_cast<uint32_t>(MatchOffsets.size());
}
std::unique_ptr<PDBSymbol>
NativeEnumGlobals::getChildAtIndex(uint32_t N) const {
if (N >= MatchOffsets.size())
return nullptr;
SymIndexId Id =
Session.getSymbolCache().getOrCreateGlobalSymbolByOffset(MatchOffsets[N]);
return Session.getSymbolCache().getSymbolById(Id);
}
std::unique_ptr<PDBSymbol> NativeEnumGlobals::getNext() {
return getChildAtIndex(Index++);
}
void NativeEnumGlobals::reset() { Index = 0; }
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