//===- CodeViewYAML.cpp - CodeView YAMLIO implementation ------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines classes for handling the YAML representation of CodeView
// Debug Info.
//
//===----------------------------------------------------------------------===//

#include "llvm/ObjectYAML/CodeViewYAML.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/DebugInfo/CodeView/CVTypeVisitor.h"
#include "llvm/DebugInfo/CodeView/CodeViewError.h"
#include "llvm/DebugInfo/CodeView/EnumTables.h"

using namespace llvm;
using namespace llvm::codeview;
using namespace llvm::CodeViewYAML;
using namespace llvm::CodeViewYAML::detail;
using namespace llvm::yaml;

LLVM_YAML_IS_SEQUENCE_VECTOR(SourceFileChecksumEntry)
LLVM_YAML_IS_SEQUENCE_VECTOR(SourceLineEntry)
LLVM_YAML_IS_SEQUENCE_VECTOR(SourceColumnEntry)
LLVM_YAML_IS_SEQUENCE_VECTOR(SourceLineBlock)
LLVM_YAML_IS_SEQUENCE_VECTOR(SourceLineInfo)
LLVM_YAML_IS_SEQUENCE_VECTOR(InlineeSite)
LLVM_YAML_IS_SEQUENCE_VECTOR(InlineeInfo)
LLVM_YAML_IS_SEQUENCE_VECTOR(OneMethodRecord)
LLVM_YAML_IS_SEQUENCE_VECTOR(StringRef)
LLVM_YAML_IS_SEQUENCE_VECTOR(uint32_t)
LLVM_YAML_IS_SEQUENCE_VECTOR(VFTableSlotKind)
LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(TypeIndex)

LLVM_YAML_DECLARE_MAPPING_TRAITS(llvm::codeview::OneMethodRecord)
LLVM_YAML_DECLARE_MAPPING_TRAITS(llvm::codeview::MemberPointerInfo)

LLVM_YAML_DECLARE_BITSET_TRAITS(CompileSym2Flags)
LLVM_YAML_DECLARE_BITSET_TRAITS(CompileSym3Flags)
LLVM_YAML_DECLARE_BITSET_TRAITS(ExportFlags)
LLVM_YAML_DECLARE_BITSET_TRAITS(LocalSymFlags)
LLVM_YAML_DECLARE_BITSET_TRAITS(ProcSymFlags)
LLVM_YAML_DECLARE_BITSET_TRAITS(FrameProcedureOptions)
LLVM_YAML_DECLARE_ENUM_TRAITS(CPUType)
LLVM_YAML_DECLARE_ENUM_TRAITS(RegisterId)
LLVM_YAML_DECLARE_ENUM_TRAITS(TrampolineType)
LLVM_YAML_DECLARE_ENUM_TRAITS(ThunkOrdinal)

namespace llvm {
namespace CodeViewYAML {
namespace detail {

struct LeafRecordBase {
  TypeLeafKind Kind;
  explicit LeafRecordBase(TypeLeafKind K) : Kind(K) {}

  virtual ~LeafRecordBase() {}
  virtual void map(yaml::IO &io) = 0;
  virtual CVType toCodeViewRecord(BumpPtrAllocator &Allocator) const = 0;
  virtual Error fromCodeViewRecord(CVType Type) = 0;
};

template <typename T> struct LeafRecordImpl : public LeafRecordBase {
  explicit LeafRecordImpl(TypeLeafKind K)
      : LeafRecordBase(K), Record(static_cast<TypeRecordKind>(K)) {}

  void map(yaml::IO &io) override;

  Error fromCodeViewRecord(CVType Type) override {
    return TypeDeserializer::deserializeAs<T>(Type, Record);
  }

  CVType toCodeViewRecord(BumpPtrAllocator &Allocator) const override {
    TypeTableBuilder Table(Allocator);
    Table.writeKnownType(Record);
    return CVType(Kind, Table.records().front());
  }

  mutable T Record;
};

template <> struct LeafRecordImpl<FieldListRecord> : public LeafRecordBase {
  explicit LeafRecordImpl(TypeLeafKind K) : LeafRecordBase(K) {}

  void map(yaml::IO &io) override;
  CVType toCodeViewRecord(BumpPtrAllocator &Allocator) const override;
  Error fromCodeViewRecord(CVType Type) override;

  std::vector<MemberRecord> Members;
};

struct MemberRecordBase {
  TypeLeafKind Kind;
  explicit MemberRecordBase(TypeLeafKind K) : Kind(K) {}

  virtual ~MemberRecordBase() {}
  virtual void map(yaml::IO &io) = 0;
  virtual void writeTo(FieldListRecordBuilder &FLRB) = 0;
};

template <typename T> struct MemberRecordImpl : public MemberRecordBase {
  explicit MemberRecordImpl(TypeLeafKind K)
      : MemberRecordBase(K), Record(static_cast<TypeRecordKind>(K)) {}
  void map(yaml::IO &io) override;

  void writeTo(FieldListRecordBuilder &FLRB) override {
    FLRB.writeMemberType(Record);
  }

  mutable T Record;
};

struct SymbolRecordBase {
  codeview::SymbolKind Kind;
  explicit SymbolRecordBase(codeview::SymbolKind K) : Kind(K) {}

  virtual ~SymbolRecordBase() {}
  virtual void map(yaml::IO &io) = 0;
  virtual codeview::CVSymbol
  toCodeViewSymbol(BumpPtrAllocator &Allocator) const = 0;
  virtual Error fromCodeViewSymbol(codeview::CVSymbol Type) = 0;
};

template <typename T> struct SymbolRecordImpl : public SymbolRecordBase {
  explicit SymbolRecordImpl(codeview::SymbolKind K)
      : SymbolRecordBase(K), Symbol(static_cast<SymbolRecordKind>(K)) {}

  void map(yaml::IO &io) override;

  codeview::CVSymbol
  toCodeViewSymbol(BumpPtrAllocator &Allocator) const override {
    return SymbolSerializer::writeOneSymbol(Symbol, Allocator);
  }
  Error fromCodeViewSymbol(codeview::CVSymbol CVS) override {
    return SymbolDeserializer::deserializeAs<T>(CVS, Symbol);
  }

  mutable T Symbol;
};
}
}
}

void ScalarTraits<TypeIndex>::output(const TypeIndex &S, void *,
                                     llvm::raw_ostream &OS) {
  OS << S.getIndex();
}

StringRef ScalarTraits<TypeIndex>::input(StringRef Scalar, void *Ctx,
                                         TypeIndex &S) {
  uint32_t I;
  StringRef Result = ScalarTraits<uint32_t>::input(Scalar, Ctx, I);
  S.setIndex(I);
  return Result;
}

void ScalarTraits<APSInt>::output(const APSInt &S, void *,
                                  llvm::raw_ostream &OS) {
  S.print(OS, true);
}

StringRef ScalarTraits<APSInt>::input(StringRef Scalar, void *Ctx, APSInt &S) {
  S = APSInt(Scalar);
  return "";
}

void ScalarEnumerationTraits<TypeLeafKind>::enumeration(IO &io,
                                                        TypeLeafKind &Value) {
#define CV_TYPE(name, val) io.enumCase(Value, #name, name);
#include "llvm/DebugInfo/CodeView/CodeViewTypes.def"
#undef CV_TYPE
}

void ScalarEnumerationTraits<PointerToMemberRepresentation>::enumeration(
    IO &IO, PointerToMemberRepresentation &Value) {
  IO.enumCase(Value, "Unknown", PointerToMemberRepresentation::Unknown);
  IO.enumCase(Value, "SingleInheritanceData",
              PointerToMemberRepresentation::SingleInheritanceData);
  IO.enumCase(Value, "MultipleInheritanceData",
              PointerToMemberRepresentation::MultipleInheritanceData);
  IO.enumCase(Value, "VirtualInheritanceData",
              PointerToMemberRepresentation::VirtualInheritanceData);
  IO.enumCase(Value, "GeneralData", PointerToMemberRepresentation::GeneralData);
  IO.enumCase(Value, "SingleInheritanceFunction",
              PointerToMemberRepresentation::SingleInheritanceFunction);
  IO.enumCase(Value, "MultipleInheritanceFunction",
              PointerToMemberRepresentation::MultipleInheritanceFunction);
  IO.enumCase(Value, "VirtualInheritanceFunction",
              PointerToMemberRepresentation::VirtualInheritanceFunction);
  IO.enumCase(Value, "GeneralFunction",
              PointerToMemberRepresentation::GeneralFunction);
}

void ScalarEnumerationTraits<VFTableSlotKind>::enumeration(
    IO &IO, VFTableSlotKind &Kind) {
  IO.enumCase(Kind, "Near16", VFTableSlotKind::Near16);
  IO.enumCase(Kind, "Far16", VFTableSlotKind::Far16);
  IO.enumCase(Kind, "This", VFTableSlotKind::This);
  IO.enumCase(Kind, "Outer", VFTableSlotKind::Outer);
  IO.enumCase(Kind, "Meta", VFTableSlotKind::Meta);
  IO.enumCase(Kind, "Near", VFTableSlotKind::Near);
  IO.enumCase(Kind, "Far", VFTableSlotKind::Far);
}

void ScalarEnumerationTraits<CallingConvention>::enumeration(
    IO &IO, CallingConvention &Value) {
  IO.enumCase(Value, "NearC", CallingConvention::NearC);
  IO.enumCase(Value, "FarC", CallingConvention::FarC);
  IO.enumCase(Value, "NearPascal", CallingConvention::NearPascal);
  IO.enumCase(Value, "FarPascal", CallingConvention::FarPascal);
  IO.enumCase(Value, "NearFast", CallingConvention::NearFast);
  IO.enumCase(Value, "FarFast", CallingConvention::FarFast);
  IO.enumCase(Value, "NearStdCall", CallingConvention::NearStdCall);
  IO.enumCase(Value, "FarStdCall", CallingConvention::FarStdCall);
  IO.enumCase(Value, "NearSysCall", CallingConvention::NearSysCall);
  IO.enumCase(Value, "FarSysCall", CallingConvention::FarSysCall);
  IO.enumCase(Value, "ThisCall", CallingConvention::ThisCall);
  IO.enumCase(Value, "MipsCall", CallingConvention::MipsCall);
  IO.enumCase(Value, "Generic", CallingConvention::Generic);
  IO.enumCase(Value, "AlphaCall", CallingConvention::AlphaCall);
  IO.enumCase(Value, "PpcCall", CallingConvention::PpcCall);
  IO.enumCase(Value, "SHCall", CallingConvention::SHCall);
  IO.enumCase(Value, "ArmCall", CallingConvention::ArmCall);
  IO.enumCase(Value, "AM33Call", CallingConvention::AM33Call);
  IO.enumCase(Value, "TriCall", CallingConvention::TriCall);
  IO.enumCase(Value, "SH5Call", CallingConvention::SH5Call);
  IO.enumCase(Value, "M32RCall", CallingConvention::M32RCall);
  IO.enumCase(Value, "ClrCall", CallingConvention::ClrCall);
  IO.enumCase(Value, "Inline", CallingConvention::Inline);
  IO.enumCase(Value, "NearVector", CallingConvention::NearVector);
}

void ScalarEnumerationTraits<PointerKind>::enumeration(IO &IO,
                                                       PointerKind &Kind) {
  IO.enumCase(Kind, "Near16", PointerKind::Near16);
  IO.enumCase(Kind, "Far16", PointerKind::Far16);
  IO.enumCase(Kind, "Huge16", PointerKind::Huge16);
  IO.enumCase(Kind, "BasedOnSegment", PointerKind::BasedOnSegment);
  IO.enumCase(Kind, "BasedOnValue", PointerKind::BasedOnValue);
  IO.enumCase(Kind, "BasedOnSegmentValue", PointerKind::BasedOnSegmentValue);
  IO.enumCase(Kind, "BasedOnAddress", PointerKind::BasedOnAddress);
  IO.enumCase(Kind, "BasedOnSegmentAddress",
              PointerKind::BasedOnSegmentAddress);
  IO.enumCase(Kind, "BasedOnType", PointerKind::BasedOnType);
  IO.enumCase(Kind, "BasedOnSelf", PointerKind::BasedOnSelf);
  IO.enumCase(Kind, "Near32", PointerKind::Near32);
  IO.enumCase(Kind, "Far32", PointerKind::Far32);
  IO.enumCase(Kind, "Near64", PointerKind::Near64);
}

void ScalarEnumerationTraits<PointerMode>::enumeration(IO &IO,
                                                       PointerMode &Mode) {
  IO.enumCase(Mode, "Pointer", PointerMode::Pointer);
  IO.enumCase(Mode, "LValueReference", PointerMode::LValueReference);
  IO.enumCase(Mode, "PointerToDataMember", PointerMode::PointerToDataMember);
  IO.enumCase(Mode, "PointerToMemberFunction",
              PointerMode::PointerToMemberFunction);
  IO.enumCase(Mode, "RValueReference", PointerMode::RValueReference);
}

void ScalarEnumerationTraits<HfaKind>::enumeration(IO &IO, HfaKind &Value) {
  IO.enumCase(Value, "None", HfaKind::None);
  IO.enumCase(Value, "Float", HfaKind::Float);
  IO.enumCase(Value, "Double", HfaKind::Double);
  IO.enumCase(Value, "Other", HfaKind::Other);
}

void ScalarEnumerationTraits<MemberAccess>::enumeration(IO &IO,
                                                        MemberAccess &Access) {
  IO.enumCase(Access, "None", MemberAccess::None);
  IO.enumCase(Access, "Private", MemberAccess::Private);
  IO.enumCase(Access, "Protected", MemberAccess::Protected);
  IO.enumCase(Access, "Public", MemberAccess::Public);
}

void ScalarEnumerationTraits<MethodKind>::enumeration(IO &IO,
                                                      MethodKind &Kind) {
  IO.enumCase(Kind, "Vanilla", MethodKind::Vanilla);
  IO.enumCase(Kind, "Virtual", MethodKind::Virtual);
  IO.enumCase(Kind, "Static", MethodKind::Static);
  IO.enumCase(Kind, "Friend", MethodKind::Friend);
  IO.enumCase(Kind, "IntroducingVirtual", MethodKind::IntroducingVirtual);
  IO.enumCase(Kind, "PureVirtual", MethodKind::PureVirtual);
  IO.enumCase(Kind, "PureIntroducingVirtual",
              MethodKind::PureIntroducingVirtual);
}

void ScalarEnumerationTraits<WindowsRTClassKind>::enumeration(
    IO &IO, WindowsRTClassKind &Value) {
  IO.enumCase(Value, "None", WindowsRTClassKind::None);
  IO.enumCase(Value, "Ref", WindowsRTClassKind::RefClass);
  IO.enumCase(Value, "Value", WindowsRTClassKind::ValueClass);
  IO.enumCase(Value, "Interface", WindowsRTClassKind::Interface);
}

void ScalarEnumerationTraits<LabelType>::enumeration(IO &IO, LabelType &Value) {
  IO.enumCase(Value, "Near", LabelType::Near);
  IO.enumCase(Value, "Far", LabelType::Far);
}

void ScalarBitSetTraits<PointerOptions>::bitset(IO &IO,
                                                PointerOptions &Options) {
  IO.bitSetCase(Options, "None", PointerOptions::None);
  IO.bitSetCase(Options, "Flat32", PointerOptions::Flat32);
  IO.bitSetCase(Options, "Volatile", PointerOptions::Volatile);
  IO.bitSetCase(Options, "Const", PointerOptions::Const);
  IO.bitSetCase(Options, "Unaligned", PointerOptions::Unaligned);
  IO.bitSetCase(Options, "Restrict", PointerOptions::Restrict);
  IO.bitSetCase(Options, "WinRTSmartPointer",
                PointerOptions::WinRTSmartPointer);
}

void ScalarBitSetTraits<ModifierOptions>::bitset(IO &IO,
                                                 ModifierOptions &Options) {
  IO.bitSetCase(Options, "None", ModifierOptions::None);
  IO.bitSetCase(Options, "Const", ModifierOptions::Const);
  IO.bitSetCase(Options, "Volatile", ModifierOptions::Volatile);
  IO.bitSetCase(Options, "Unaligned", ModifierOptions::Unaligned);
}

void ScalarBitSetTraits<FunctionOptions>::bitset(IO &IO,
                                                 FunctionOptions &Options) {
  IO.bitSetCase(Options, "None", FunctionOptions::None);
  IO.bitSetCase(Options, "CxxReturnUdt", FunctionOptions::CxxReturnUdt);
  IO.bitSetCase(Options, "Constructor", FunctionOptions::Constructor);
  IO.bitSetCase(Options, "ConstructorWithVirtualBases",
                FunctionOptions::ConstructorWithVirtualBases);
}

void ScalarBitSetTraits<ClassOptions>::bitset(IO &IO, ClassOptions &Options) {
  IO.bitSetCase(Options, "None", ClassOptions::None);
  IO.bitSetCase(Options, "HasConstructorOrDestructor",
                ClassOptions::HasConstructorOrDestructor);
  IO.bitSetCase(Options, "HasOverloadedOperator",
                ClassOptions::HasOverloadedOperator);
  IO.bitSetCase(Options, "Nested", ClassOptions::Nested);
  IO.bitSetCase(Options, "ContainsNestedClass",
                ClassOptions::ContainsNestedClass);
  IO.bitSetCase(Options, "HasOverloadedAssignmentOperator",
                ClassOptions::HasOverloadedAssignmentOperator);
  IO.bitSetCase(Options, "HasConversionOperator",
                ClassOptions::HasConversionOperator);
  IO.bitSetCase(Options, "ForwardReference", ClassOptions::ForwardReference);
  IO.bitSetCase(Options, "Scoped", ClassOptions::Scoped);
  IO.bitSetCase(Options, "HasUniqueName", ClassOptions::HasUniqueName);
  IO.bitSetCase(Options, "Sealed", ClassOptions::Sealed);
  IO.bitSetCase(Options, "Intrinsic", ClassOptions::Intrinsic);
}

void ScalarBitSetTraits<MethodOptions>::bitset(IO &IO, MethodOptions &Options) {
  IO.bitSetCase(Options, "None", MethodOptions::None);
  IO.bitSetCase(Options, "Pseudo", MethodOptions::Pseudo);
  IO.bitSetCase(Options, "NoInherit", MethodOptions::NoInherit);
  IO.bitSetCase(Options, "NoConstruct", MethodOptions::NoConstruct);
  IO.bitSetCase(Options, "CompilerGenerated", MethodOptions::CompilerGenerated);
  IO.bitSetCase(Options, "Sealed", MethodOptions::Sealed);
}

void ScalarEnumerationTraits<FileChecksumKind>::enumeration(
    IO &io, FileChecksumKind &Kind) {
  io.enumCase(Kind, "None", FileChecksumKind::None);
  io.enumCase(Kind, "MD5", FileChecksumKind::MD5);
  io.enumCase(Kind, "SHA1", FileChecksumKind::SHA1);
  io.enumCase(Kind, "SHA256", FileChecksumKind::SHA256);
}

void ScalarBitSetTraits<LineFlags>::bitset(IO &io, LineFlags &Flags) {
  io.bitSetCase(Flags, "HasColumnInfo", LF_HaveColumns);
  io.enumFallback<Hex16>(Flags);
}

void ScalarEnumerationTraits<SymbolKind>::enumeration(IO &io,
                                                      SymbolKind &Value) {
  auto SymbolNames = getSymbolTypeNames();
  for (const auto &E : SymbolNames)
    io.enumCase(Value, E.Name.str().c_str(), E.Value);
}

void ScalarBitSetTraits<CompileSym2Flags>::bitset(IO &io,
                                                  CompileSym2Flags &Flags) {
  auto FlagNames = getCompileSym2FlagNames();
  for (const auto &E : FlagNames) {
    io.bitSetCase(Flags, E.Name.str().c_str(),
                  static_cast<CompileSym2Flags>(E.Value));
  }
}

void ScalarBitSetTraits<CompileSym3Flags>::bitset(IO &io,
                                                  CompileSym3Flags &Flags) {
  auto FlagNames = getCompileSym3FlagNames();
  for (const auto &E : FlagNames) {
    io.bitSetCase(Flags, E.Name.str().c_str(),
                  static_cast<CompileSym3Flags>(E.Value));
  }
}

void ScalarBitSetTraits<ExportFlags>::bitset(IO &io, ExportFlags &Flags) {
  auto FlagNames = getExportSymFlagNames();
  for (const auto &E : FlagNames) {
    io.bitSetCase(Flags, E.Name.str().c_str(),
                  static_cast<ExportFlags>(E.Value));
  }
}

void ScalarBitSetTraits<LocalSymFlags>::bitset(IO &io, LocalSymFlags &Flags) {
  auto FlagNames = getLocalFlagNames();
  for (const auto &E : FlagNames) {
    io.bitSetCase(Flags, E.Name.str().c_str(),
                  static_cast<LocalSymFlags>(E.Value));
  }
}

void ScalarBitSetTraits<ProcSymFlags>::bitset(IO &io, ProcSymFlags &Flags) {
  auto FlagNames = getProcSymFlagNames();
  for (const auto &E : FlagNames) {
    io.bitSetCase(Flags, E.Name.str().c_str(),
                  static_cast<ProcSymFlags>(E.Value));
  }
}

void ScalarBitSetTraits<FrameProcedureOptions>::bitset(
    IO &io, FrameProcedureOptions &Flags) {
  auto FlagNames = getFrameProcSymFlagNames();
  for (const auto &E : FlagNames) {
    io.bitSetCase(Flags, E.Name.str().c_str(),
                  static_cast<FrameProcedureOptions>(E.Value));
  }
}

void ScalarEnumerationTraits<CPUType>::enumeration(IO &io, CPUType &Cpu) {
  auto CpuNames = getCPUTypeNames();
  for (const auto &E : CpuNames) {
    io.enumCase(Cpu, E.Name.str().c_str(), static_cast<CPUType>(E.Value));
  }
}

void ScalarEnumerationTraits<RegisterId>::enumeration(IO &io, RegisterId &Reg) {
  auto RegNames = getRegisterNames();
  for (const auto &E : RegNames) {
    io.enumCase(Reg, E.Name.str().c_str(), static_cast<RegisterId>(E.Value));
  }
  io.enumFallback<Hex16>(Reg);
}

void ScalarEnumerationTraits<TrampolineType>::enumeration(
    IO &io, TrampolineType &Tramp) {
  auto TrampNames = getTrampolineNames();
  for (const auto &E : TrampNames) {
    io.enumCase(Tramp, E.Name.str().c_str(),
                static_cast<TrampolineType>(E.Value));
  }
}

void ScalarEnumerationTraits<ThunkOrdinal>::enumeration(IO &io,
                                                        ThunkOrdinal &Ord) {
  auto ThunkNames = getThunkOrdinalNames();
  for (const auto &E : ThunkNames) {
    io.enumCase(Ord, E.Name.str().c_str(), static_cast<ThunkOrdinal>(E.Value));
  }
}

void ScalarTraits<HexFormattedString>::output(const HexFormattedString &Value,
                                              void *ctx, raw_ostream &Out) {
  StringRef Bytes(reinterpret_cast<const char *>(Value.Bytes.data()),
                  Value.Bytes.size());
  Out << toHex(Bytes);
}

StringRef ScalarTraits<HexFormattedString>::input(StringRef Scalar, void *ctxt,
                                                  HexFormattedString &Value) {
  std::string H = fromHex(Scalar);
  Value.Bytes.assign(H.begin(), H.end());
  return StringRef();
}

void MappingTraits<SourceLineEntry>::mapping(IO &IO, SourceLineEntry &Obj) {
  IO.mapRequired("Offset", Obj.Offset);
  IO.mapRequired("LineStart", Obj.LineStart);
  IO.mapRequired("IsStatement", Obj.IsStatement);
  IO.mapRequired("EndDelta", Obj.EndDelta);
}

void MappingTraits<SourceColumnEntry>::mapping(IO &IO, SourceColumnEntry &Obj) {
  IO.mapRequired("StartColumn", Obj.StartColumn);
  IO.mapRequired("EndColumn", Obj.EndColumn);
}

void MappingTraits<SourceLineBlock>::mapping(IO &IO, SourceLineBlock &Obj) {
  IO.mapRequired("FileName", Obj.FileName);
  IO.mapRequired("Lines", Obj.Lines);
  IO.mapRequired("Columns", Obj.Columns);
}

void MappingTraits<SourceFileChecksumEntry>::mapping(
    IO &IO, SourceFileChecksumEntry &Obj) {
  IO.mapRequired("FileName", Obj.FileName);
  IO.mapRequired("Kind", Obj.Kind);
  IO.mapRequired("Checksum", Obj.ChecksumBytes);
}

void MappingTraits<SourceLineInfo>::mapping(IO &IO, SourceLineInfo &Obj) {
  IO.mapRequired("CodeSize", Obj.CodeSize);

  IO.mapRequired("Flags", Obj.Flags);
  IO.mapRequired("RelocOffset", Obj.RelocOffset);
  IO.mapRequired("RelocSegment", Obj.RelocSegment);
  IO.mapRequired("Blocks", Obj.Blocks);
}

void MappingTraits<SourceFileInfo>::mapping(IO &IO, SourceFileInfo &Obj) {
  IO.mapOptional("Checksums", Obj.FileChecksums);
  IO.mapOptional("Lines", Obj.LineFragments);
  IO.mapOptional("InlineeLines", Obj.Inlinees);
}

void MappingTraits<InlineeSite>::mapping(IO &IO, InlineeSite &Obj) {
  IO.mapRequired("FileName", Obj.FileName);
  IO.mapRequired("LineNum", Obj.SourceLineNum);
  IO.mapRequired("Inlinee", Obj.Inlinee);
  IO.mapOptional("ExtraFiles", Obj.ExtraFiles);
}

void MappingTraits<InlineeInfo>::mapping(IO &IO, InlineeInfo &Obj) {
  IO.mapRequired("HasExtraFiles", Obj.HasExtraFiles);
  IO.mapRequired("Sites", Obj.Sites);
}

void MappingTraits<MemberPointerInfo>::mapping(IO &IO, MemberPointerInfo &MPI) {
  IO.mapRequired("ContainingType", MPI.ContainingType);
  IO.mapRequired("Representation", MPI.Representation);
}

namespace llvm {
namespace CodeViewYAML {
namespace detail {
template <> void LeafRecordImpl<ModifierRecord>::map(IO &IO) {
  IO.mapRequired("ModifiedType", Record.ModifiedType);
  IO.mapRequired("Modifiers", Record.Modifiers);
}

template <> void LeafRecordImpl<ProcedureRecord>::map(IO &IO) {
  IO.mapRequired("ReturnType", Record.ReturnType);
  IO.mapRequired("CallConv", Record.CallConv);
  IO.mapRequired("Options", Record.Options);
  IO.mapRequired("ParameterCount", Record.ParameterCount);
  IO.mapRequired("ArgumentList", Record.ArgumentList);
}

template <> void LeafRecordImpl<MemberFunctionRecord>::map(IO &IO) {
  IO.mapRequired("ReturnType", Record.ReturnType);
  IO.mapRequired("ClassType", Record.ClassType);
  IO.mapRequired("ThisType", Record.ThisType);
  IO.mapRequired("CallConv", Record.CallConv);
  IO.mapRequired("Options", Record.Options);
  IO.mapRequired("ParameterCount", Record.ParameterCount);
  IO.mapRequired("ArgumentList", Record.ArgumentList);
  IO.mapRequired("ThisPointerAdjustment", Record.ThisPointerAdjustment);
}

template <> void LeafRecordImpl<LabelRecord>::map(IO &IO) {
  IO.mapRequired("Mode", Record.Mode);
}

template <> void LeafRecordImpl<MemberFuncIdRecord>::map(IO &IO) {
  IO.mapRequired("ClassType", Record.ClassType);
  IO.mapRequired("FunctionType", Record.FunctionType);
  IO.mapRequired("Name", Record.Name);
}

template <> void LeafRecordImpl<ArgListRecord>::map(IO &IO) {
  IO.mapRequired("ArgIndices", Record.ArgIndices);
}

template <> void LeafRecordImpl<StringListRecord>::map(IO &IO) {
  IO.mapRequired("StringIndices", Record.StringIndices);
}

template <> void LeafRecordImpl<PointerRecord>::map(IO &IO) {
  IO.mapRequired("ReferentType", Record.ReferentType);
  IO.mapRequired("Attrs", Record.Attrs);
  IO.mapOptional("MemberInfo", Record.MemberInfo);
}

template <> void LeafRecordImpl<ArrayRecord>::map(IO &IO) {
  IO.mapRequired("ElementType", Record.ElementType);
  IO.mapRequired("IndexType", Record.IndexType);
  IO.mapRequired("Size", Record.Size);
  IO.mapRequired("Name", Record.Name);
}

void LeafRecordImpl<FieldListRecord>::map(IO &IO) {
  IO.mapRequired("FieldList", Members);
}
}
}
}

namespace {
class MemberRecordConversionVisitor : public TypeVisitorCallbacks {
public:
  explicit MemberRecordConversionVisitor(std::vector<MemberRecord> &Records)
      : Records(Records) {}

#define TYPE_RECORD(EnumName, EnumVal, Name)
#define MEMBER_RECORD(EnumName, EnumVal, Name)                                 \
  Error visitKnownMember(CVMemberRecord &CVR, Name##Record &Record) override { \
    return visitKnownMemberImpl(Record);                                       \
  }
#define TYPE_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
#define MEMBER_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
#include "llvm/DebugInfo/CodeView/CodeViewTypes.def"
private:
  template <typename T> Error visitKnownMemberImpl(T &Record) {
    TypeLeafKind K = static_cast<TypeLeafKind>(Record.getKind());
    auto Impl = std::make_shared<MemberRecordImpl<T>>(K);
    Impl->Record = Record;
    Records.push_back(MemberRecord{Impl});
    return Error::success();
  }

  std::vector<MemberRecord> &Records;
};
}

Error LeafRecordImpl<FieldListRecord>::fromCodeViewRecord(CVType Type) {
  MemberRecordConversionVisitor V(Members);
  return visitMemberRecordStream(Type.content(), V);
}

CVType LeafRecordImpl<FieldListRecord>::toCodeViewRecord(
    BumpPtrAllocator &Allocator) const {
  TypeTableBuilder TTB(Allocator);
  FieldListRecordBuilder FLRB(TTB);
  FLRB.begin();
  for (const auto &Member : Members) {
    Member.Member->writeTo(FLRB);
  }
  FLRB.end(true);
  return CVType(Kind, TTB.records().front());
}

void MappingTraits<OneMethodRecord>::mapping(IO &io, OneMethodRecord &Record) {
  io.mapRequired("Type", Record.Type);
  io.mapRequired("Attrs", Record.Attrs.Attrs);
  io.mapRequired("VFTableOffset", Record.VFTableOffset);
  io.mapRequired("Name", Record.Name);
}

namespace llvm {
namespace CodeViewYAML {
namespace detail {
template <> void LeafRecordImpl<ClassRecord>::map(IO &IO) {
  IO.mapRequired("MemberCount", Record.MemberCount);
  IO.mapRequired("Options", Record.Options);
  IO.mapRequired("FieldList", Record.FieldList);
  IO.mapRequired("Name", Record.Name);
  IO.mapRequired("UniqueName", Record.UniqueName);

  IO.mapRequired("DerivationList", Record.DerivationList);
  IO.mapRequired("VTableShape", Record.VTableShape);
  IO.mapRequired("Size", Record.Size);
}

template <> void LeafRecordImpl<UnionRecord>::map(IO &IO) {
  IO.mapRequired("MemberCount", Record.MemberCount);
  IO.mapRequired("Options", Record.Options);
  IO.mapRequired("FieldList", Record.FieldList);
  IO.mapRequired("Name", Record.Name);
  IO.mapRequired("UniqueName", Record.UniqueName);

  IO.mapRequired("Size", Record.Size);
}

template <> void LeafRecordImpl<EnumRecord>::map(IO &IO) {
  IO.mapRequired("NumEnumerators", Record.MemberCount);
  IO.mapRequired("Options", Record.Options);
  IO.mapRequired("FieldList", Record.FieldList);
  IO.mapRequired("Name", Record.Name);
  IO.mapRequired("UniqueName", Record.UniqueName);

  IO.mapRequired("UnderlyingType", Record.UnderlyingType);
}

template <> void LeafRecordImpl<BitFieldRecord>::map(IO &IO) {
  IO.mapRequired("Type", Record.Type);
  IO.mapRequired("BitSize", Record.BitSize);
  IO.mapRequired("BitOffset", Record.BitOffset);
}

template <> void LeafRecordImpl<VFTableShapeRecord>::map(IO &IO) {
  IO.mapRequired("Slots", Record.Slots);
}

template <> void LeafRecordImpl<TypeServer2Record>::map(IO &IO) {
  IO.mapRequired("Guid", Record.Guid);
  IO.mapRequired("Age", Record.Age);
  IO.mapRequired("Name", Record.Name);
}

template <> void LeafRecordImpl<StringIdRecord>::map(IO &IO) {
  IO.mapRequired("Id", Record.Id);
  IO.mapRequired("String", Record.String);
}

template <> void LeafRecordImpl<FuncIdRecord>::map(IO &IO) {
  IO.mapRequired("ParentScope", Record.ParentScope);
  IO.mapRequired("FunctionType", Record.FunctionType);
  IO.mapRequired("Name", Record.Name);
}

template <> void LeafRecordImpl<UdtSourceLineRecord>::map(IO &IO) {
  IO.mapRequired("UDT", Record.UDT);
  IO.mapRequired("SourceFile", Record.SourceFile);
  IO.mapRequired("LineNumber", Record.LineNumber);
}

template <> void LeafRecordImpl<UdtModSourceLineRecord>::map(IO &IO) {
  IO.mapRequired("UDT", Record.UDT);
  IO.mapRequired("SourceFile", Record.SourceFile);
  IO.mapRequired("LineNumber", Record.LineNumber);
  IO.mapRequired("Module", Record.Module);
}

template <> void LeafRecordImpl<BuildInfoRecord>::map(IO &IO) {
  IO.mapRequired("ArgIndices", Record.ArgIndices);
}

template <> void LeafRecordImpl<VFTableRecord>::map(IO &IO) {
  IO.mapRequired("CompleteClass", Record.CompleteClass);
  IO.mapRequired("OverriddenVFTable", Record.OverriddenVFTable);
  IO.mapRequired("VFPtrOffset", Record.VFPtrOffset);
  IO.mapRequired("MethodNames", Record.MethodNames);
}

template <> void LeafRecordImpl<MethodOverloadListRecord>::map(IO &IO) {
  IO.mapRequired("Methods", Record.Methods);
}

template <> void MemberRecordImpl<OneMethodRecord>::map(IO &IO) {
  MappingTraits<OneMethodRecord>::mapping(IO, Record);
}

template <> void MemberRecordImpl<OverloadedMethodRecord>::map(IO &IO) {
  IO.mapRequired("NumOverloads", Record.NumOverloads);
  IO.mapRequired("MethodList", Record.MethodList);
  IO.mapRequired("Name", Record.Name);
}

template <> void MemberRecordImpl<NestedTypeRecord>::map(IO &IO) {
  IO.mapRequired("Type", Record.Type);
  IO.mapRequired("Name", Record.Name);
}

template <> void MemberRecordImpl<DataMemberRecord>::map(IO &IO) {
  IO.mapRequired("Attrs", Record.Attrs.Attrs);
  IO.mapRequired("Type", Record.Type);
  IO.mapRequired("FieldOffset", Record.FieldOffset);
  IO.mapRequired("Name", Record.Name);
}

template <> void MemberRecordImpl<StaticDataMemberRecord>::map(IO &IO) {
  IO.mapRequired("Attrs", Record.Attrs.Attrs);
  IO.mapRequired("Type", Record.Type);
  IO.mapRequired("Name", Record.Name);
}

template <> void MemberRecordImpl<EnumeratorRecord>::map(IO &IO) {
  IO.mapRequired("Attrs", Record.Attrs.Attrs);
  IO.mapRequired("Value", Record.Value);
  IO.mapRequired("Name", Record.Name);
}

template <> void MemberRecordImpl<VFPtrRecord>::map(IO &IO) {
  IO.mapRequired("Type", Record.Type);
}

template <> void MemberRecordImpl<BaseClassRecord>::map(IO &IO) {
  IO.mapRequired("Attrs", Record.Attrs.Attrs);
  IO.mapRequired("Type", Record.Type);
  IO.mapRequired("Offset", Record.Offset);
}

template <> void MemberRecordImpl<VirtualBaseClassRecord>::map(IO &IO) {
  IO.mapRequired("Attrs", Record.Attrs.Attrs);
  IO.mapRequired("BaseType", Record.BaseType);
  IO.mapRequired("VBPtrType", Record.VBPtrType);
  IO.mapRequired("VBPtrOffset", Record.VBPtrOffset);
  IO.mapRequired("VTableIndex", Record.VTableIndex);
}

template <> void MemberRecordImpl<ListContinuationRecord>::map(IO &IO) {
  IO.mapRequired("ContinuationIndex", Record.ContinuationIndex);
}
}
}
}

template <typename T>
static inline Expected<LeafRecord> fromCodeViewRecordImpl(CVType Type) {
  LeafRecord Result;

  auto Impl = std::make_shared<LeafRecordImpl<T>>(Type.kind());
  if (auto EC = Impl->fromCodeViewRecord(Type))
    return std::move(EC);
  Result.Leaf = Impl;
  return Result;
}

Expected<LeafRecord> LeafRecord::fromCodeViewRecord(CVType Type) {
#define TYPE_RECORD(EnumName, EnumVal, ClassName)                              \
  case EnumName:                                                               \
    return fromCodeViewRecordImpl<ClassName##Record>(Type);
#define TYPE_RECORD_ALIAS(EnumName, EnumVal, AliasName, ClassName)             \
  TYPE_RECORD(EnumName, EnumVal, ClassName)
#define MEMBER_RECORD(EnumName, EnumVal, ClassName)
#define MEMBER_RECORD_ALIAS(EnumName, EnumVal, AliasName, ClassName)
  switch (Type.kind()) {
#include "llvm/DebugInfo/CodeView/CodeViewTypes.def"
  default: { llvm_unreachable("Unknown leaf kind!"); }
  }
  return make_error<CodeViewError>(cv_error_code::corrupt_record);
}

CVType LeafRecord::toCodeViewRecord(BumpPtrAllocator &Allocator) const {
  return Leaf->toCodeViewRecord(Allocator);
}

namespace llvm {
namespace yaml {
template <> struct MappingTraits<LeafRecordBase> {
  static void mapping(IO &io, LeafRecordBase &Record) { Record.map(io); }
};

template <> struct MappingTraits<MemberRecordBase> {
  static void mapping(IO &io, MemberRecordBase &Record) { Record.map(io); }
};
}
}

template <typename ConcreteType>
static void mapLeafRecordImpl(IO &IO, const char *Class, TypeLeafKind Kind,
                              LeafRecord &Obj) {
  if (!IO.outputting())
    Obj.Leaf = std::make_shared<LeafRecordImpl<ConcreteType>>(Kind);

  if (Kind == LF_FIELDLIST)
    Obj.Leaf->map(IO);
  else
    IO.mapRequired(Class, *Obj.Leaf);
}

void MappingTraits<LeafRecord>::mapping(IO &IO, LeafRecord &Obj) {
  TypeLeafKind Kind;
  if (IO.outputting())
    Kind = Obj.Leaf->Kind;
  IO.mapRequired("Kind", Kind);

#define TYPE_RECORD(EnumName, EnumVal, ClassName)                              \
  case EnumName:                                                               \
    mapLeafRecordImpl<ClassName##Record>(IO, #ClassName, Kind, Obj);           \
    break;
#define TYPE_RECORD_ALIAS(EnumName, EnumVal, AliasName, ClassName)             \
  TYPE_RECORD(EnumName, EnumVal, ClassName)
#define MEMBER_RECORD(EnumName, EnumVal, ClassName)
#define MEMBER_RECORD_ALIAS(EnumName, EnumVal, AliasName, ClassName)
  switch (Kind) {
#include "llvm/DebugInfo/CodeView/CodeViewTypes.def"
  default: { llvm_unreachable("Unknown leaf kind!"); }
  }
}

template <typename ConcreteType>
static void mapMemberRecordImpl(IO &IO, const char *Class, TypeLeafKind Kind,
                                MemberRecord &Obj) {
  if (!IO.outputting())
    Obj.Member = std::make_shared<MemberRecordImpl<ConcreteType>>(Kind);

  IO.mapRequired(Class, *Obj.Member);
}

void MappingTraits<MemberRecord>::mapping(IO &IO, MemberRecord &Obj) {
  TypeLeafKind Kind;
  if (IO.outputting())
    Kind = Obj.Member->Kind;
  IO.mapRequired("Kind", Kind);

#define MEMBER_RECORD(EnumName, EnumVal, ClassName)                            \
  case EnumName:                                                               \
    mapMemberRecordImpl<ClassName##Record>(IO, #ClassName, Kind, Obj);         \
    break;
#define MEMBER_RECORD_ALIAS(EnumName, EnumVal, AliasName, ClassName)           \
  MEMBER_RECORD(EnumName, EnumVal, ClassName)
#define TYPE_RECORD(EnumName, EnumVal, ClassName)
#define TYPE_RECORD_ALIAS(EnumName, EnumVal, AliasName, ClassName)
  switch (Kind) {
#include "llvm/DebugInfo/CodeView/CodeViewTypes.def"
  default: { llvm_unreachable("Unknown member kind!"); }
  }
}

namespace llvm {
namespace CodeViewYAML {
namespace detail {
template <> void SymbolRecordImpl<ScopeEndSym>::map(IO &IO) {}

template <> void SymbolRecordImpl<Thunk32Sym>::map(IO &IO) {
  IO.mapRequired("Parent", Symbol.Parent);
  IO.mapRequired("End", Symbol.End);
  IO.mapRequired("Next", Symbol.Next);
  IO.mapRequired("Off", Symbol.Offset);
  IO.mapRequired("Seg", Symbol.Segment);
  IO.mapRequired("Len", Symbol.Length);
  IO.mapRequired("Ordinal", Symbol.Thunk);
}

template <> void SymbolRecordImpl<TrampolineSym>::map(IO &IO) {
  IO.mapRequired("Type", Symbol.Type);
  IO.mapRequired("Size", Symbol.Size);
  IO.mapRequired("ThunkOff", Symbol.ThunkOffset);
  IO.mapRequired("TargetOff", Symbol.TargetOffset);
  IO.mapRequired("ThunkSection", Symbol.ThunkSection);
  IO.mapRequired("TargetSection", Symbol.TargetSection);
}

template <> void SymbolRecordImpl<SectionSym>::map(IO &IO) {
  IO.mapRequired("SectionNumber", Symbol.SectionNumber);
  IO.mapRequired("Alignment", Symbol.Alignment);
  IO.mapRequired("Rva", Symbol.Rva);
  IO.mapRequired("Length", Symbol.Length);
  IO.mapRequired("Characteristics", Symbol.Characteristics);
  IO.mapRequired("Name", Symbol.Name);
}

template <> void SymbolRecordImpl<CoffGroupSym>::map(IO &IO) {
  IO.mapRequired("Size", Symbol.Size);
  IO.mapRequired("Characteristics", Symbol.Characteristics);
  IO.mapRequired("Offset", Symbol.Offset);
  IO.mapRequired("Segment", Symbol.Segment);
  IO.mapRequired("Name", Symbol.Name);
}

template <> void SymbolRecordImpl<ExportSym>::map(IO &IO) {
  IO.mapRequired("Ordinal", Symbol.Ordinal);
  IO.mapRequired("Flags", Symbol.Flags);
  IO.mapRequired("Name", Symbol.Name);
}

template <> void SymbolRecordImpl<ProcSym>::map(IO &IO) {
  // TODO: Print the linkage name

  IO.mapRequired("PtrParent", Symbol.Parent);
  IO.mapRequired("PtrEnd", Symbol.End);
  IO.mapRequired("PtrNext", Symbol.Next);
  IO.mapRequired("CodeSize", Symbol.CodeSize);
  IO.mapRequired("DbgStart", Symbol.DbgStart);
  IO.mapRequired("DbgEnd", Symbol.DbgEnd);
  IO.mapRequired("FunctionType", Symbol.FunctionType);
  IO.mapRequired("Segment", Symbol.Segment);
  IO.mapRequired("Flags", Symbol.Flags);
  IO.mapRequired("DisplayName", Symbol.Name);
}

template <> void SymbolRecordImpl<RegisterSym>::map(IO &IO) {
  IO.mapRequired("Type", Symbol.Index);
  IO.mapRequired("Seg", Symbol.Register);
  IO.mapRequired("Name", Symbol.Name);
}

template <> void SymbolRecordImpl<PublicSym32>::map(IO &IO) {
  IO.mapRequired("Type", Symbol.Index);
  IO.mapRequired("Seg", Symbol.Segment);
  IO.mapRequired("Off", Symbol.Offset);
  IO.mapRequired("Name", Symbol.Name);
}

template <> void SymbolRecordImpl<ProcRefSym>::map(IO &IO) {
  IO.mapRequired("SumName", Symbol.SumName);
  IO.mapRequired("SymOffset", Symbol.SymOffset);
  IO.mapRequired("Mod", Symbol.Module);
  IO.mapRequired("Name", Symbol.Name);
}

template <> void SymbolRecordImpl<EnvBlockSym>::map(IO &IO) {
  IO.mapRequired("Entries", Symbol.Fields);
}

template <> void SymbolRecordImpl<InlineSiteSym>::map(IO &IO) {
  IO.mapRequired("PtrParent", Symbol.Parent);
  IO.mapRequired("PtrEnd", Symbol.End);
  IO.mapRequired("Inlinee", Symbol.Inlinee);
  // TODO: The binary annotations
}

template <> void SymbolRecordImpl<LocalSym>::map(IO &IO) {
  IO.mapRequired("Type", Symbol.Type);
  IO.mapRequired("Flags", Symbol.Flags);
  IO.mapRequired("VarName", Symbol.Name);
}

template <> void SymbolRecordImpl<DefRangeSym>::map(IO &IO) {
  // TODO: Print the subfields
}

template <> void SymbolRecordImpl<DefRangeSubfieldSym>::map(IO &IO) {
  // TODO: Print the subfields
}

template <> void SymbolRecordImpl<DefRangeRegisterSym>::map(IO &IO) {
  // TODO: Print the subfields
}

template <> void SymbolRecordImpl<DefRangeFramePointerRelSym>::map(IO &IO) {
  // TODO: Print the subfields
}

template <> void SymbolRecordImpl<DefRangeSubfieldRegisterSym>::map(IO &IO) {
  // TODO: Print the subfields
}

template <>
void SymbolRecordImpl<DefRangeFramePointerRelFullScopeSym>::map(IO &IO) {
  // TODO: Print the subfields
}

template <> void SymbolRecordImpl<DefRangeRegisterRelSym>::map(IO &IO) {
  // TODO: Print the subfields
}

template <> void SymbolRecordImpl<BlockSym>::map(IO &IO) {
  // TODO: Print the linkage name
  IO.mapRequired("PtrParent", Symbol.Parent);
  IO.mapRequired("PtrEnd", Symbol.End);
  IO.mapRequired("CodeSize", Symbol.CodeSize);
  IO.mapRequired("Segment", Symbol.Segment);
  IO.mapRequired("BlockName", Symbol.Name);
}

template <> void SymbolRecordImpl<LabelSym>::map(IO &IO) {
  // TODO: Print the linkage name
  IO.mapRequired("Segment", Symbol.Segment);
  IO.mapRequired("Flags", Symbol.Flags);
  IO.mapRequired("Flags", Symbol.Flags);
  IO.mapRequired("DisplayName", Symbol.Name);
}

template <> void SymbolRecordImpl<ObjNameSym>::map(IO &IO) {
  IO.mapRequired("Signature", Symbol.Signature);
  IO.mapRequired("ObjectName", Symbol.Name);
}

template <> void SymbolRecordImpl<Compile2Sym>::map(IO &IO) {
  IO.mapRequired("Flags", Symbol.Flags);
  IO.mapRequired("Machine", Symbol.Machine);
  IO.mapRequired("FrontendMajor", Symbol.VersionFrontendMajor);
  IO.mapRequired("FrontendMinor", Symbol.VersionFrontendMinor);
  IO.mapRequired("FrontendBuild", Symbol.VersionFrontendBuild);
  IO.mapRequired("BackendMajor", Symbol.VersionBackendMajor);
  IO.mapRequired("BackendMinor", Symbol.VersionBackendMinor);
  IO.mapRequired("BackendBuild", Symbol.VersionBackendBuild);
  IO.mapRequired("Version", Symbol.Version);
}

template <> void SymbolRecordImpl<Compile3Sym>::map(IO &IO) {
  IO.mapRequired("Flags", Symbol.Flags);
  IO.mapRequired("Machine", Symbol.Machine);
  IO.mapRequired("FrontendMajor", Symbol.VersionFrontendMajor);
  IO.mapRequired("FrontendMinor", Symbol.VersionFrontendMinor);
  IO.mapRequired("FrontendBuild", Symbol.VersionFrontendBuild);
  IO.mapRequired("FrontendQFE", Symbol.VersionFrontendQFE);
  IO.mapRequired("BackendMajor", Symbol.VersionBackendMajor);
  IO.mapRequired("BackendMinor", Symbol.VersionBackendMinor);
  IO.mapRequired("BackendBuild", Symbol.VersionBackendBuild);
  IO.mapRequired("BackendQFE", Symbol.VersionBackendQFE);
  IO.mapRequired("Version", Symbol.Version);
}

template <> void SymbolRecordImpl<FrameProcSym>::map(IO &IO) {
  IO.mapRequired("TotalFrameBytes", Symbol.TotalFrameBytes);
  IO.mapRequired("PaddingFrameBytes", Symbol.PaddingFrameBytes);
  IO.mapRequired("OffsetToPadding", Symbol.OffsetToPadding);
  IO.mapRequired("BytesOfCalleeSavedRegisters",
                 Symbol.BytesOfCalleeSavedRegisters);
  IO.mapRequired("OffsetOfExceptionHandler", Symbol.OffsetOfExceptionHandler);
  IO.mapRequired("SectionIdOfExceptionHandler",
                 Symbol.SectionIdOfExceptionHandler);
  IO.mapRequired("Flags", Symbol.Flags);
}

template <> void SymbolRecordImpl<CallSiteInfoSym>::map(IO &IO) {
  // TODO: Map Linkage Name
  IO.mapRequired("Segment", Symbol.Segment);
  IO.mapRequired("Type", Symbol.Type);
}

template <> void SymbolRecordImpl<FileStaticSym>::map(IO &IO) {
  IO.mapRequired("Index", Symbol.Index);
  IO.mapRequired("ModFilenameOffset", Symbol.ModFilenameOffset);
  IO.mapRequired("Flags", Symbol.Flags);
  IO.mapRequired("Name", Symbol.Name);
}

template <> void SymbolRecordImpl<HeapAllocationSiteSym>::map(IO &IO) {
  // TODO: Map Linkage Name
  IO.mapRequired("Segment", Symbol.Segment);
  IO.mapRequired("CallInstructionSize", Symbol.CallInstructionSize);
  IO.mapRequired("Type", Symbol.Type);
}

template <> void SymbolRecordImpl<FrameCookieSym>::map(IO &IO) {
  // TODO: Map Linkage Name
  IO.mapRequired("Register", Symbol.Register);
  IO.mapRequired("CookieKind", Symbol.CookieKind);
  IO.mapRequired("Flags", Symbol.Flags);
}

template <> void SymbolRecordImpl<CallerSym>::map(IO &IO) {
  IO.mapRequired("FuncID", Symbol.Indices);
}

template <> void SymbolRecordImpl<UDTSym>::map(IO &IO) {
  IO.mapRequired("Type", Symbol.Type);
  IO.mapRequired("UDTName", Symbol.Name);
}

template <> void SymbolRecordImpl<BuildInfoSym>::map(IO &IO) {
  IO.mapRequired("BuildId", Symbol.BuildId);
}

template <> void SymbolRecordImpl<BPRelativeSym>::map(IO &IO) {
  IO.mapRequired("Offset", Symbol.Offset);
  IO.mapRequired("Type", Symbol.Type);
  IO.mapRequired("VarName", Symbol.Name);
}

template <> void SymbolRecordImpl<RegRelativeSym>::map(IO &IO) {
  IO.mapRequired("Offset", Symbol.Offset);
  IO.mapRequired("Type", Symbol.Type);
  IO.mapRequired("Register", Symbol.Register);
  IO.mapRequired("VarName", Symbol.Name);
}

template <> void SymbolRecordImpl<ConstantSym>::map(IO &IO) {
  IO.mapRequired("Type", Symbol.Type);
  IO.mapRequired("Value", Symbol.Value);
  IO.mapRequired("Name", Symbol.Name);
}

template <> void SymbolRecordImpl<DataSym>::map(IO &IO) {
  // TODO: Map linkage name
  IO.mapRequired("Type", Symbol.Type);
  IO.mapRequired("DisplayName", Symbol.Name);
}

template <> void SymbolRecordImpl<ThreadLocalDataSym>::map(IO &IO) {
  // TODO: Map linkage name
  IO.mapRequired("Type", Symbol.Type);
  IO.mapRequired("DisplayName", Symbol.Name);
}
}
}
}

CVSymbol CodeViewYAML::SymbolRecord::toCodeViewSymbol(
    BumpPtrAllocator &Allocator) const {
  return Symbol->toCodeViewSymbol(Allocator);
}

namespace llvm {
namespace yaml {
template <> struct MappingTraits<SymbolRecordBase> {
  static void mapping(IO &io, SymbolRecordBase &Record) { Record.map(io); }
};
}
}

template <typename SymbolType>
static inline Expected<CodeViewYAML::SymbolRecord>
fromCodeViewSymbolImpl(CVSymbol Symbol) {
  CodeViewYAML::SymbolRecord Result;

  auto Impl = std::make_shared<SymbolRecordImpl<SymbolType>>(Symbol.kind());
  if (auto EC = Impl->fromCodeViewSymbol(Symbol))
    return std::move(EC);
  Result.Symbol = Impl;
  return Result;
}

Expected<CodeViewYAML::SymbolRecord>
CodeViewYAML::SymbolRecord::fromCodeViewSymbol(CVSymbol Symbol) {
#define SYMBOL_RECORD(EnumName, EnumVal, ClassName)                            \
  case EnumName:                                                               \
    return fromCodeViewSymbolImpl<ClassName>(Symbol);
#define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, AliasName, ClassName)           \
  SYMBOL_RECORD(EnumName, EnumVal, ClassName)
  switch (Symbol.kind()) {
#include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
  default: { llvm_unreachable("Unknown symbol kind!"); }
  }
  return make_error<CodeViewError>(cv_error_code::corrupt_record);
}

template <typename ConcreteType>
static void mapSymbolRecordImpl(IO &IO, const char *Class, SymbolKind Kind,
                                CodeViewYAML::SymbolRecord &Obj) {
  if (!IO.outputting())
    Obj.Symbol = std::make_shared<SymbolRecordImpl<ConcreteType>>(Kind);

  IO.mapRequired(Class, *Obj.Symbol);
}

void MappingTraits<CodeViewYAML::SymbolRecord>::mapping(
    IO &IO, CodeViewYAML::SymbolRecord &Obj) {
  SymbolKind Kind;
  if (IO.outputting())
    Kind = Obj.Symbol->Kind;
  IO.mapRequired("Kind", Kind);

#define SYMBOL_RECORD(EnumName, EnumVal, ClassName)                            \
  case EnumName:                                                               \
    mapSymbolRecordImpl<ClassName>(IO, #ClassName, Kind, Obj);                 \
    break;
#define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, AliasName, ClassName)           \
  SYMBOL_RECORD(EnumName, EnumVal, ClassName)
  switch (Kind) {
#include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
  default: { llvm_unreachable("Unknown symbol kind!"); }
  }
}