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| //==- NativeEnumTypes.cpp - Native Type 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/NativeEnumTypes.h"
#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
#include "llvm/DebugInfo/CodeView/TypeRecordHelpers.h"
#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
#include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
#include "llvm/DebugInfo/PDB/PDBSymbol.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
using namespace llvm;
using namespace llvm::codeview;
using namespace llvm::pdb;
NativeEnumTypes::NativeEnumTypes(NativeSession &PDBSession,
LazyRandomTypeCollection &Types,
std::vector<codeview::TypeLeafKind> Kinds)
: Matches(), Index(0), Session(PDBSession) {
Optional<TypeIndex> TI = Types.getFirst();
while (TI) {
CVType CVT = Types.getType(*TI);
TypeLeafKind K = CVT.kind();
if (llvm::is_contained(Kinds, K)) {
// Don't add forward refs, we'll find those later while enumerating.
if (!isUdtForwardRef(CVT))
Matches.push_back(*TI);
} else if (K == TypeLeafKind::LF_MODIFIER) {
TypeIndex ModifiedTI = getModifiedType(CVT);
if (!ModifiedTI.isSimple()) {
CVType UnmodifiedCVT = Types.getType(ModifiedTI);
// LF_MODIFIERs point to forward refs, but don't worry about that
// here. We're pushing the TypeIndex of the LF_MODIFIER itself,
// so we'll worry about resolving forward refs later.
if (llvm::is_contained(Kinds, UnmodifiedCVT.kind()))
Matches.push_back(*TI);
}
}
TI = Types.getNext(*TI);
}
}
NativeEnumTypes::NativeEnumTypes(NativeSession &PDBSession,
std::vector<codeview::TypeIndex> Indices)
: Matches(std::move(Indices)), Index(0), Session(PDBSession) {}
uint32_t NativeEnumTypes::getChildCount() const {
return static_cast<uint32_t>(Matches.size());
}
std::unique_ptr<PDBSymbol> NativeEnumTypes::getChildAtIndex(uint32_t N) const {
if (N < Matches.size()) {
SymIndexId Id = Session.getSymbolCache().findSymbolByTypeIndex(Matches[N]);
return Session.getSymbolCache().getSymbolById(Id);
}
return nullptr;
}
std::unique_ptr<PDBSymbol> NativeEnumTypes::getNext() {
return getChildAtIndex(Index++);
}
void NativeEnumTypes::reset() { Index = 0; }
|