55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
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//==- NativeEnumGlobals.cpp - Native Global Enumerator impl ------*- C++ -*-==//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/PDB/Native/NativeEnumGlobals.h"
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#include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
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#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
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#include "llvm/DebugInfo/PDB/Native/GlobalsStream.h"
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#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
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#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
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#include "llvm/DebugInfo/PDB/Native/SymbolStream.h"
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#include "llvm/DebugInfo/PDB/PDBSymbol.h"
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using namespace llvm;
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using namespace llvm::codeview;
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using namespace llvm::pdb;
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NativeEnumGlobals::NativeEnumGlobals(NativeSession &PDBSession,
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std::vector<codeview::SymbolKind> Kinds)
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: Index(0), Session(PDBSession) {
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GlobalsStream &GS = cantFail(Session.getPDBFile().getPDBGlobalsStream());
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SymbolStream &SS = cantFail(Session.getPDBFile().getPDBSymbolStream());
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for (uint32_t Off : GS.getGlobalsTable()) {
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CVSymbol S = SS.readRecord(Off);
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if (!llvm::is_contained(Kinds, S.kind()))
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continue;
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MatchOffsets.push_back(Off);
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}
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}
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uint32_t NativeEnumGlobals::getChildCount() const {
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return static_cast<uint32_t>(MatchOffsets.size());
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}
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std::unique_ptr<PDBSymbol>
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NativeEnumGlobals::getChildAtIndex(uint32_t N) const {
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if (N >= MatchOffsets.size())
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return nullptr;
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SymIndexId Id =
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Session.getSymbolCache().getOrCreateGlobalSymbolByOffset(MatchOffsets[N]);
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return Session.getSymbolCache().getSymbolById(Id);
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}
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std::unique_ptr<PDBSymbol> NativeEnumGlobals::getNext() {
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return getChildAtIndex(Index++);
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}
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void NativeEnumGlobals::reset() { Index = 0; }
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