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//===- NativeSymbolEnumerator.cpp - info about enumerators ------*- 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/NativeSymbolEnumerator.h" 
 
#include "llvm/DebugInfo/CodeView/SymbolRecord.h" 
#include "llvm/DebugInfo/PDB/Native/NativeTypeBuiltin.h" 
#include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h" 
 
using namespace llvm; 
using namespace llvm::codeview; 
using namespace llvm::pdb; 
 
NativeSymbolEnumerator::NativeSymbolEnumerator( 
    NativeSession &Session, SymIndexId Id, const NativeTypeEnum &Parent, 
    codeview::EnumeratorRecord Record) 
    : NativeRawSymbol(Session, PDB_SymType::Data, Id), Parent(Parent), 
      Record(std::move(Record)) {} 
 
NativeSymbolEnumerator::~NativeSymbolEnumerator() {} 
 
void NativeSymbolEnumerator::dump(raw_ostream &OS, int Indent, 
                                  PdbSymbolIdField ShowIdFields, 
                                  PdbSymbolIdField RecurseIdFields) const { 
  NativeRawSymbol::dump(OS, Indent, ShowIdFields, RecurseIdFields); 
  dumpSymbolIdField(OS, "classParentId", getClassParentId(), Indent, Session, 
                    PdbSymbolIdField::ClassParent, ShowIdFields, 
                    RecurseIdFields); 
  dumpSymbolIdField(OS, "lexicalParentId", getLexicalParentId(), Indent, 
                    Session, PdbSymbolIdField::LexicalParent, ShowIdFields, 
                    RecurseIdFields); 
  dumpSymbolField(OS, "name", getName(), Indent); 
  dumpSymbolIdField(OS, "typeId", getTypeId(), Indent, Session, 
                    PdbSymbolIdField::Type, ShowIdFields, RecurseIdFields); 
  dumpSymbolField(OS, "dataKind", getDataKind(), Indent); 
  dumpSymbolField(OS, "locationType", getLocationType(), Indent); 
  dumpSymbolField(OS, "constType", isConstType(), Indent); 
  dumpSymbolField(OS, "unalignedType", isUnalignedType(), Indent); 
  dumpSymbolField(OS, "volatileType", isVolatileType(), Indent); 
  dumpSymbolField(OS, "value", getValue(), Indent); 
} 
 
SymIndexId NativeSymbolEnumerator::getClassParentId() const { 
  return Parent.getSymIndexId(); 
} 
 
SymIndexId NativeSymbolEnumerator::getLexicalParentId() const { return 0; } 
 
std::string NativeSymbolEnumerator::getName() const { 
  return std::string(Record.Name); 
} 
 
SymIndexId NativeSymbolEnumerator::getTypeId() const { 
  return Parent.getTypeId(); 
} 
 
PDB_DataKind NativeSymbolEnumerator::getDataKind() const { 
  return PDB_DataKind::Constant; 
} 
 
PDB_LocType NativeSymbolEnumerator::getLocationType() const { 
  return PDB_LocType::Constant; 
} 
 
bool NativeSymbolEnumerator::isConstType() const { return false; } 
 
bool NativeSymbolEnumerator::isVolatileType() const { return false; } 
 
bool NativeSymbolEnumerator::isUnalignedType() const { return false; } 
 
Variant NativeSymbolEnumerator::getValue() const { 
  const NativeTypeBuiltin &BT = Parent.getUnderlyingBuiltinType(); 
 
  switch (BT.getBuiltinType()) { 
  case PDB_BuiltinType::Int: 
  case PDB_BuiltinType::Long: 
  case PDB_BuiltinType::Char: { 
    assert(Record.Value.isSignedIntN(BT.getLength() * 8)); 
    int64_t N = Record.Value.getSExtValue(); 
    switch (BT.getLength()) { 
    case 1: 
      return Variant{static_cast<int8_t>(N)}; 
    case 2: 
      return Variant{static_cast<int16_t>(N)}; 
    case 4: 
      return Variant{static_cast<int32_t>(N)}; 
    case 8: 
      return Variant{static_cast<int64_t>(N)}; 
    } 
    break; 
  } 
  case PDB_BuiltinType::UInt: 
  case PDB_BuiltinType::ULong: { 
    assert(Record.Value.isIntN(BT.getLength() * 8)); 
    uint64_t U = Record.Value.getZExtValue(); 
    switch (BT.getLength()) { 
    case 1: 
      return Variant{static_cast<uint8_t>(U)}; 
    case 2: 
      return Variant{static_cast<uint16_t>(U)}; 
    case 4: 
      return Variant{static_cast<uint32_t>(U)}; 
    case 8: 
      return Variant{static_cast<uint64_t>(U)}; 
    } 
    break; 
  } 
  case PDB_BuiltinType::Bool: { 
    assert(Record.Value.isIntN(BT.getLength() * 8)); 
    uint64_t U = Record.Value.getZExtValue(); 
    return Variant{static_cast<bool>(U)}; 
  } 
  default: 
    assert(false && "Invalid enumeration type"); 
    break; 
  } 
 
  return Variant{Record.Value.getSExtValue()}; 
}