C++ raw_ostream::indent方法代码示例

void CheckOrImmMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  OS.indent(indent) << "CheckOrImm " << Value << '\n';
}

void RecordMemRefMatcher::printImpl(raw_ostream &OS, unsigned indent) const {
  OS.indent(indent) << "RecordMemRef\n";
}

void DisassemblerTables::emitModRMDecision(raw_ostream &o1, raw_ostream &o2,
                                           unsigned &i1, unsigned &i2,
                                           unsigned &ModRMTableNum,
                                           ModRMDecision &decision) const {
  static uint32_t sTableNumber = 0;
  static uint32_t sEntryNumber = 1;
  ModRMDecisionType dt = getDecisionType(decision);

  if (dt == MODRM_ONEENTRY && decision.instructionIDs[0] == 0)
  {
    o2.indent(i2) << "{ /* ModRMDecision */" << "\n";
    i2++;

    o2.indent(i2) << stringForDecisionType(dt) << "," << "\n";
    o2.indent(i2) << 0 << " /* EmptyTable */\n";

    i2--;
    o2.indent(i2) << "}";
    return;
  }

  std::vector<unsigned> ModRMDecision;

  switch (dt) {
    default:
      llvm_unreachable("Unknown decision type");
    case MODRM_ONEENTRY:
      ModRMDecision.push_back(decision.instructionIDs[0]);
      break;
    case MODRM_SPLITRM:
      ModRMDecision.push_back(decision.instructionIDs[0x00]);
      ModRMDecision.push_back(decision.instructionIDs[0xc0]);
      break;
    case MODRM_SPLITREG:
      for (unsigned index = 0; index < 64; index += 8)
        ModRMDecision.push_back(decision.instructionIDs[index]);
      for (unsigned index = 0xc0; index < 256; index += 8)
        ModRMDecision.push_back(decision.instructionIDs[index]);
      break;
    case MODRM_SPLITMISC:
      for (unsigned index = 0; index < 64; index += 8)
        ModRMDecision.push_back(decision.instructionIDs[index]);
      for (unsigned index = 0xc0; index < 256; ++index)
        ModRMDecision.push_back(decision.instructionIDs[index]);
      break;
    case MODRM_FULL:
      for (unsigned index = 0; index < 256; ++index)
        ModRMDecision.push_back(decision.instructionIDs[index]);
      break;
  }

  unsigned &EntryNumber = ModRMTable[ModRMDecision];
  if (EntryNumber == 0) {
    EntryNumber = ModRMTableNum;

    ModRMTableNum += ModRMDecision.size();
    o1 << "/* Table" << EntryNumber << " */\n";
    i1++;
    for (std::vector<unsigned>::const_iterator I = ModRMDecision.begin(),
           E = ModRMDecision.end(); I != E; ++I) {
      o1.indent(i1 * 2) << format("0x%hx", *I) << ", /* "
                        << InstructionSpecifiers[*I].name << " */\n";
    }
    i1--;
  }

  o2.indent(i2) << "{ /* struct ModRMDecision */" << "\n";
  i2++;

  o2.indent(i2) << stringForDecisionType(dt) << "," << "\n";
  o2.indent(i2) << EntryNumber << " /* Table" << EntryNumber << " */\n";

  i2--;
  o2.indent(i2) << "}";

  switch (dt) {
    default:
      llvm_unreachable("Unknown decision type");
    case MODRM_ONEENTRY:
      sEntryNumber += 1;
      break;
    case MODRM_SPLITRM:
      sEntryNumber += 2;
      break;
    case MODRM_SPLITREG:
      sEntryNumber += 16;
      break;
    case MODRM_SPLITMISC:
      sEntryNumber += 8 + 64;
      break;
    case MODRM_FULL:
      sEntryNumber += 256;
      break;
  }

  // We assume that the index can fit into uint16_t.
  assert(sEntryNumber < 65536U &&
         "Index into ModRMDecision is too large for uint16_t!");

  ++sTableNumber;
//.........这里部分代码省略.........

void DisassemblerTables::emitContextTable(raw_ostream &o, unsigned &i) const {
  const unsigned int tableSize = 16384;
  o.indent(i * 2) << "static const uint8_t " CONTEXTS_STR
                     "[" << tableSize << "] = {\n";
  i++;

  for (unsigned index = 0; index < tableSize; ++index) {
    o.indent(i * 2);

    if (index & ATTR_EVEX) {
      o << "IC_EVEX";
      if (index & ATTR_EVEXL2)
        o << "_L2";
      else if (index & ATTR_EVEXL)
        o << "_L";
      if (index & ATTR_REXW)
        o << "_W";
      if (index & ATTR_OPSIZE)
        o << "_OPSIZE";
      else if (index & ATTR_XD)
        o << "_XD";
      else if (index & ATTR_XS)
        o << "_XS";
      if (index & ATTR_EVEXKZ)
        o << "_KZ";
      else if (index & ATTR_EVEXK)
        o << "_K";
      if (index & ATTR_EVEXB)
        o << "_B";
    }
    else if ((index & ATTR_VEXL) && (index & ATTR_REXW) && (index & ATTR_OPSIZE))
      o << "IC_VEX_L_W_OPSIZE";
    else if ((index & ATTR_VEXL) && (index & ATTR_REXW) && (index & ATTR_XD))
      o << "IC_VEX_L_W_XD";
    else if ((index & ATTR_VEXL) && (index & ATTR_REXW) && (index & ATTR_XS))
      o << "IC_VEX_L_W_XS";
    else if ((index & ATTR_VEXL) && (index & ATTR_REXW))
      o << "IC_VEX_L_W";
    else if ((index & ATTR_VEXL) && (index & ATTR_OPSIZE))
      o << "IC_VEX_L_OPSIZE";
    else if ((index & ATTR_VEXL) && (index & ATTR_XD))
      o << "IC_VEX_L_XD";
    else if ((index & ATTR_VEXL) && (index & ATTR_XS))
      o << "IC_VEX_L_XS";
    else if ((index & ATTR_VEX) && (index & ATTR_REXW) && (index & ATTR_OPSIZE))
      o << "IC_VEX_W_OPSIZE";
    else if ((index & ATTR_VEX) && (index & ATTR_REXW) && (index & ATTR_XD))
      o << "IC_VEX_W_XD";
    else if ((index & ATTR_VEX) && (index & ATTR_REXW) && (index & ATTR_XS))
      o << "IC_VEX_W_XS";
    else if (index & ATTR_VEXL)
      o << "IC_VEX_L";
    else if ((index & ATTR_VEX) && (index & ATTR_REXW))
      o << "IC_VEX_W";
    else if ((index & ATTR_VEX) && (index & ATTR_OPSIZE))
      o << "IC_VEX_OPSIZE";
    else if ((index & ATTR_VEX) && (index & ATTR_XD))
      o << "IC_VEX_XD";
    else if ((index & ATTR_VEX) && (index & ATTR_XS))
      o << "IC_VEX_XS";
    else if (index & ATTR_VEX)
      o << "IC_VEX";
    else if ((index & ATTR_64BIT) && (index & ATTR_REXW) && (index & ATTR_XS))
      o << "IC_64BIT_REXW_XS";
    else if ((index & ATTR_64BIT) && (index & ATTR_REXW) && (index & ATTR_XD))
      o << "IC_64BIT_REXW_XD";
    else if ((index & ATTR_64BIT) && (index & ATTR_REXW) &&
             (index & ATTR_OPSIZE))
      o << "IC_64BIT_REXW_OPSIZE";
    else if ((index & ATTR_64BIT) && (index & ATTR_XD) && (index & ATTR_OPSIZE))
      o << "IC_64BIT_XD_OPSIZE";
    else if ((index & ATTR_64BIT) && (index & ATTR_XS) && (index & ATTR_OPSIZE))
      o << "IC_64BIT_XS_OPSIZE";
    else if ((index & ATTR_64BIT) && (index & ATTR_XS))
      o << "IC_64BIT_XS";
    else if ((index & ATTR_64BIT) && (index & ATTR_XD))
      o << "IC_64BIT_XD";
    else if ((index & ATTR_64BIT) && (index & ATTR_OPSIZE))
      o << "IC_64BIT_OPSIZE";
    else if ((index & ATTR_64BIT) && (index & ATTR_ADSIZE))
      o << "IC_64BIT_ADSIZE";
    else if ((index & ATTR_64BIT) && (index & ATTR_REXW))
      o << "IC_64BIT_REXW";
    else if ((index & ATTR_64BIT))
      o << "IC_64BIT";
    else if ((index & ATTR_XS) && (index & ATTR_OPSIZE))
      o << "IC_XS_OPSIZE";
    else if ((index & ATTR_XD) && (index & ATTR_OPSIZE))
      o << "IC_XD_OPSIZE";
    else if (index & ATTR_XS)
      o << "IC_XS";
    else if (index & ATTR_XD)
      o << "IC_XD";
    else if (index & ATTR_OPSIZE)
      o << "IC_OPSIZE";
    else if (index & ATTR_ADSIZE)
      o << "IC_ADSIZE";
    else
      o << "IC";

//.........这里部分代码省略.........

/// EmitMatcher - Emit bytes for the specified matcher and return
/// the number of bytes emitted.
unsigned MatcherTableEmitter::
EmitMatcher(const Matcher *N, unsigned Indent, unsigned CurrentIdx,
            raw_ostream &OS) {
  OS.indent(Indent*2);

  switch (N->getKind()) {
  case Matcher::Scope: {
    const ScopeMatcher *SM = cast<ScopeMatcher>(N);
    assert(SM->getNext() == nullptr && "Shouldn't have next after scope");

    unsigned StartIdx = CurrentIdx;

    // Emit all of the children.
    for (unsigned i = 0, e = SM->getNumChildren(); i != e; ++i) {
      if (i == 0) {
        OS << "OPC_Scope, ";
        ++CurrentIdx;
      } else  {
        if (!OmitComments) {
          OS << "/*" << format_decimal(CurrentIdx, IndexWidth) << "*/";
          OS.indent(Indent*2) << "/*Scope*/ ";
        } else
          OS.indent(Indent*2);
      }

      // We need to encode the child and the offset of the failure code before
      // emitting either of them.  Handle this by buffering the output into a
      // string while we get the size.  Unfortunately, the offset of the
      // children depends on the VBR size of the child, so for large children we
      // have to iterate a bit.
      SmallString<128> TmpBuf;
      unsigned ChildSize = 0;
      unsigned VBRSize = 0;
      do {
        VBRSize = GetVBRSize(ChildSize);

        TmpBuf.clear();
        raw_svector_ostream OS(TmpBuf);
        ChildSize = EmitMatcherList(SM->getChild(i), Indent+1,
                                    CurrentIdx+VBRSize, OS);
      } while (GetVBRSize(ChildSize) != VBRSize);

      assert(ChildSize != 0 && "Should not have a zero-sized child!");

      CurrentIdx += EmitVBRValue(ChildSize, OS);
      if (!OmitComments) {
        OS << "/*->" << CurrentIdx+ChildSize << "*/";

        if (i == 0)
          OS << " // " << SM->getNumChildren() << " children in Scope";
      }

      OS << '\n' << TmpBuf;
      CurrentIdx += ChildSize;
    }

    // Emit a zero as a sentinel indicating end of 'Scope'.
    if (!OmitComments)
      OS << "/*" << format_decimal(CurrentIdx, IndexWidth) << "*/";
    OS.indent(Indent*2) << "0, ";
    if (!OmitComments)
      OS << "/*End of Scope*/";
    OS << '\n';
    return CurrentIdx - StartIdx + 1;
  }

  case Matcher::RecordNode:
    OS << "OPC_RecordNode,";
    if (!OmitComments)
      OS << " // #"
         << cast<RecordMatcher>(N)->getResultNo() << " = "
         << cast<RecordMatcher>(N)->getWhatFor();
    OS << '\n';
    return 1;

  case Matcher::RecordChild:
    OS << "OPC_RecordChild" << cast<RecordChildMatcher>(N)->getChildNo()
       << ',';
    if (!OmitComments)
      OS << " // #"
         << cast<RecordChildMatcher>(N)->getResultNo() << " = "
         << cast<RecordChildMatcher>(N)->getWhatFor();
    OS << '\n';
    return 1;

  case Matcher::RecordMemRef:
    OS << "OPC_RecordMemRef,\n";
    return 1;

  case Matcher::CaptureGlueInput:
    OS << "OPC_CaptureGlueInput,\n";
    return 1;

  case Matcher::MoveChild: {
    const auto *MCM = cast<MoveChildMatcher>(N);

    OS << "OPC_MoveChild";
    // Handle the specialized forms.
//.........这里部分代码省略.........

void Module::print(raw_ostream &OS, unsigned Indent) const {
  OS.indent(Indent);
  if (IsFramework)
    OS << "framework ";
  if (IsExplicit)
    OS << "explicit ";
  OS << "module " << Name;

  if (IsSystem) {
    OS.indent(Indent + 2);
    OS << " [system]";
  }

  OS << " {\n";
  
  if (!Requires.empty()) {
    OS.indent(Indent + 2);
    OS << "requires ";
    for (unsigned I = 0, N = Requires.size(); I != N; ++I) {
      if (I)
        OS << ", ";
      OS << Requires[I];
    }
    OS << "\n";
  }
  
  if (const FileEntry *UmbrellaHeader = getUmbrellaHeader()) {
    OS.indent(Indent + 2);
    OS << "umbrella header \"";
    OS.write_escaped(UmbrellaHeader->getName());
    OS << "\"\n";
  } else if (const DirectoryEntry *UmbrellaDir = getUmbrellaDir()) {
    OS.indent(Indent + 2);
    OS << "umbrella \"";
    OS.write_escaped(UmbrellaDir->getName());
    OS << "\"\n";    
  }

  if (!ConfigMacros.empty() || ConfigMacrosExhaustive) {
    OS.indent(Indent + 2);
    OS << "config_macros ";
    if (ConfigMacrosExhaustive)
      OS << "[exhaustive]";
    for (unsigned I = 0, N = ConfigMacros.size(); I != N; ++I) {
      if (I)
        OS << ", ";
      OS << ConfigMacros[I];
    }
    OS << "\n";
  }

  for (unsigned I = 0, N = NormalHeaders.size(); I != N; ++I) {
    OS.indent(Indent + 2);
    OS << "header \"";
    OS.write_escaped(NormalHeaders[I]->getName());
    OS << "\"\n";
  }

  for (unsigned I = 0, N = ExcludedHeaders.size(); I != N; ++I) {
    OS.indent(Indent + 2);
    OS << "exclude header \"";
    OS.write_escaped(ExcludedHeaders[I]->getName());
    OS << "\"\n";
  }

  for (unsigned I = 0, N = PrivateHeaders.size(); I != N; ++I) {
    OS.indent(Indent + 2);
    OS << "private header \"";
    OS.write_escaped(PrivateHeaders[I]->getName());
    OS << "\"\n";
  }
  
  for (submodule_const_iterator MI = submodule_begin(), MIEnd = submodule_end();
       MI != MIEnd; ++MI)
    (*MI)->print(OS, Indent + 2);
  
  for (unsigned I = 0, N = Exports.size(); I != N; ++I) {
    OS.indent(Indent + 2);
    OS << "export ";
    if (Module *Restriction = Exports[I].getPointer()) {
      OS << Restriction->getFullModuleName();
      if (Exports[I].getInt())
        OS << ".*";
    } else {
      OS << "*";
    }
    OS << "\n";
  }

  for (unsigned I = 0, N = UnresolvedExports.size(); I != N; ++I) {
    OS.indent(Indent + 2);
    OS << "export ";
    printModuleId(OS, UnresolvedExports[I].Id);
    if (UnresolvedExports[I].Wildcard) {
      if (UnresolvedExports[I].Id.empty())
        OS << "*";
      else
        OS << ".*";
    }
    OS << "\n";
//.........这里部分代码省略.........

void EmitConvertToTargetMatcher::
printImpl(raw_ostream &OS, unsigned indent) const {
  OS.indent(indent) << "EmitConvertToTarget " << Slot << '\n';
}

void EmitStringIntegerMatcher::
printImpl(raw_ostream &OS, unsigned indent) const {
  OS.indent(indent) << "EmitStringInteger " << Val << " VT=" << getEnumName(VT)
                    << '\n';
}

void OtherPlatformAvailabilitySpec::print(raw_ostream &OS, unsigned Indent) const {
  OS.indent(Indent) << '(' << "other_constraint_availability_spec"
                    << " "
                    << ')';
}

void Module::print(raw_ostream &OS, unsigned Indent) const {
  OS.indent(Indent);
  if (IsFramework)
    OS << "framework ";
  if (IsExplicit)
    OS << "explicit ";
  OS << "module " << Name;

  if (IsSystem || IsExternC) {
    OS.indent(Indent + 2);
    if (IsSystem)
      OS << " [system]";
    if (IsExternC)
      OS << " [extern_c]";
  }

  OS << " {\n";
  
  if (!Requirements.empty()) {
    OS.indent(Indent + 2);
    OS << "requires ";
    for (unsigned I = 0, N = Requirements.size(); I != N; ++I) {
      if (I)
        OS << ", ";
      if (!Requirements[I].second)
        OS << "!";
      OS << Requirements[I].first;
    }
    OS << "\n";
  }
  
  if (Header H = getUmbrellaHeader()) {
    OS.indent(Indent + 2);
    OS << "umbrella header \"";
    OS.write_escaped(H.NameAsWritten);
    OS << "\"\n";
  } else if (DirectoryName D = getUmbrellaDir()) {
    OS.indent(Indent + 2);
    OS << "umbrella \"";
    OS.write_escaped(D.NameAsWritten);
    OS << "\"\n";    
  }

  if (!ConfigMacros.empty() || ConfigMacrosExhaustive) {
    OS.indent(Indent + 2);
    OS << "config_macros ";
    if (ConfigMacrosExhaustive)
      OS << "[exhaustive]";
    for (unsigned I = 0, N = ConfigMacros.size(); I != N; ++I) {
      if (I)
        OS << ", ";
      OS << ConfigMacros[I];
    }
    OS << "\n";
  }

  struct {
    StringRef Prefix;
    HeaderKind Kind;
  } Kinds[] = {{"", HK_Normal},
               {"textual ", HK_Textual},
               {"private ", HK_Private},
               {"private textual ", HK_PrivateTextual},
               {"exclude ", HK_Excluded}};

  for (auto &K : Kinds) {
    for (auto &H : Headers[K.Kind]) {
      OS.indent(Indent + 2);
      OS << K.Prefix << "header \"";
      OS.write_escaped(H.NameAsWritten);
      OS << "\"\n";
    }
  }

  for (submodule_const_iterator MI = submodule_begin(), MIEnd = submodule_end();
       MI != MIEnd; ++MI)
    // Print inferred subframework modules so that we don't need to re-infer
    // them (requires expensive directory iteration + stat calls) when we build
    // the module. Regular inferred submodules are OK, as we need to look at all
    // those header files anyway.
    if (!(*MI)->IsInferred || (*MI)->IsFramework)
      (*MI)->print(OS, Indent + 2);
  
  for (unsigned I = 0, N = Exports.size(); I != N; ++I) {
    OS.indent(Indent + 2);
    OS << "export ";
    if (Module *Restriction = Exports[I].getPointer()) {
      OS << Restriction->getFullModuleName();
      if (Exports[I].getInt())
        OS << ".*";
    } else {
      OS << "*";
    }
    OS << "\n";
  }

  for (unsigned I = 0, N = UnresolvedExports.size(); I != N; ++I) {
    OS.indent(Indent + 2);
    OS << "export ";
    printModuleId(OS, UnresolvedExports[I].Id);
//.........这里部分代码省略.........

/// emitEmptyTable - Emits the modRMEmptyTable, which is used as a ID table by
///   all ModR/M decisions for instructions that are invalid for all possible
///   ModR/M byte values.
///
/// @param o        - The output stream on which to emit the table.
/// @param i        - The indentation level for that output stream.
static void emitEmptyTable(raw_ostream &o, uint32_t &i)
{
  o.indent(i * 2) << "static const InstrUID modRMEmptyTable[1] = { 0 };\n";
  o << "\n";
}

void AMDGPUInstPrinter::printLast(const MCInst *MI, unsigned OpNo,
                                  raw_ostream &O) {
  printIfSet(MI, OpNo, O.indent(25 - O.GetNumBytesInBuffer()), "*", " ");
}

void DisassemblerTables::emitModRMDecision(raw_ostream &o1,
                                           raw_ostream &o2,
                                           uint32_t &i1,
                                           uint32_t &i2,
                                           ModRMDecision &decision)
  const {
  static uint64_t sTableNumber = 0;
  uint64_t thisTableNumber = sTableNumber;
  ModRMDecisionType dt = getDecisionType(decision);
  uint16_t index;
  
  if (dt == MODRM_ONEENTRY && decision.instructionIDs[0] == 0)
  {
    o2.indent(i2) << "{ /* ModRMDecision */" << "\n";
    i2++;
    
    o2.indent(i2) << stringForDecisionType(dt) << "," << "\n";
    o2.indent(i2) << "modRMEmptyTable";
    
    i2--;
    o2.indent(i2) << "}";
    return;
  }
    
  o1.indent(i1) << "static const InstrUID modRMTable" << thisTableNumber;
    
  switch (dt) {
    default:
      llvm_unreachable("Unknown decision type");
    case MODRM_ONEENTRY:
      o1 << "[1]";
      break;
    case MODRM_SPLITRM:
      o1 << "[2]";
      break;
    case MODRM_FULL:
      o1 << "[256]";
      break;      
  }

  o1 << " = {" << "\n";
  i1++;
    
  switch (dt) {
    default:
      llvm_unreachable("Unknown decision type");
    case MODRM_ONEENTRY:
      emitOneID(o1, i1, decision.instructionIDs[0], false);
      break;
    case MODRM_SPLITRM:
      emitOneID(o1, i1, decision.instructionIDs[0x00], true); // mod = 0b00
      emitOneID(o1, i1, decision.instructionIDs[0xc0], false); // mod = 0b11
      break;
    case MODRM_FULL:
      for (index = 0; index < 256; ++index)
        emitOneID(o1, i1, decision.instructionIDs[index], index < 255);
      break;
  }
    
  i1--;
  o1.indent(i1) << "};" << "\n";
  o1 << "\n";
    
  o2.indent(i2) << "{ /* struct ModRMDecision */" << "\n";
  i2++;
    
  o2.indent(i2) << stringForDecisionType(dt) << "," << "\n";
  o2.indent(i2) << "modRMTable" << sTableNumber << "\n";
    
  i2--;
  o2.indent(i2) << "}";
    
  ++sTableNumber;
}

unsigned DeclContext::printContext(raw_ostream &OS, const unsigned indent,
                                   const bool onlyAPartialLine) const {
  unsigned Depth = 0;
  if (!onlyAPartialLine)
    if (auto *P = getParent())
      Depth = P->printContext(OS, indent);

  const char *Kind;
  switch (getContextKind()) {
  case DeclContextKind::Module:           Kind = "Module"; break;
  case DeclContextKind::FileUnit:         Kind = "FileUnit"; break;
  case DeclContextKind::SerializedLocal:  Kind = "Serialized Local"; break;
  case DeclContextKind::AbstractClosureExpr:
    Kind = "AbstractClosureExpr";
    break;
  case DeclContextKind::GenericTypeDecl:
    switch (cast<GenericTypeDecl>(this)->getKind()) {
#define DECL(ID, PARENT) \
    case DeclKind::ID: Kind = #ID "Decl"; break;
#include "swift/AST/DeclNodes.def"
    }
    break;
  case DeclContextKind::ExtensionDecl:    Kind = "ExtensionDecl"; break;
  case DeclContextKind::TopLevelCodeDecl: Kind = "TopLevelCodeDecl"; break;
  case DeclContextKind::Initializer:      Kind = "Initializer"; break;
  case DeclContextKind::AbstractFunctionDecl:
    Kind = "AbstractFunctionDecl";
    break;
  case DeclContextKind::SubscriptDecl:    Kind = "SubscriptDecl"; break;
  case DeclContextKind::EnumElementDecl:  Kind = "EnumElementDecl"; break;
  }
  OS.indent(Depth*2 + indent) << (void*)this << " " << Kind;

  switch (getContextKind()) {
  case DeclContextKind::Module:
    OS << " name=" << cast<ModuleDecl>(this)->getName();
    break;
  case DeclContextKind::FileUnit:
    switch (cast<FileUnit>(this)->getKind()) {
    case FileUnitKind::Builtin:
      OS << " Builtin";
      break;
    case FileUnitKind::Source:
      OS << " file=\"" << cast<SourceFile>(this)->getFilename() << "\"";
      break;
    case FileUnitKind::SerializedAST:
    case FileUnitKind::ClangModule:
    case FileUnitKind::DWARFModule:
      OS << " file=\"" << cast<LoadedFile>(this)->getFilename() << "\"";
      break;
    }
    break;
  case DeclContextKind::AbstractClosureExpr:
    OS << " line=" << getLineNumber(cast<AbstractClosureExpr>(this));
    OS << " : " << cast<AbstractClosureExpr>(this)->getType();
    break;
  case DeclContextKind::GenericTypeDecl:
    OS << " name=" << cast<GenericTypeDecl>(this)->getName();
    break;
  case DeclContextKind::ExtensionDecl:
    OS << " line=" << getLineNumber(cast<ExtensionDecl>(this));
    OS << " base=" << cast<ExtensionDecl>(this)->getExtendedType();
    break;
  case DeclContextKind::TopLevelCodeDecl:
    OS << " line=" << getLineNumber(cast<TopLevelCodeDecl>(this));
    break;
  case DeclContextKind::AbstractFunctionDecl: {
    auto *AFD = cast<AbstractFunctionDecl>(this);
    OS << " name=" << AFD->getFullName();
    if (AFD->hasInterfaceType())
      OS << " : " << AFD->getInterfaceType();
    else
      OS << " : (no type set)";
    break;
  }
  case DeclContextKind::SubscriptDecl: {
    auto *SD = cast<SubscriptDecl>(this);
    OS << " name=" << SD->getBaseName();
    if (SD->hasInterfaceType())
      OS << " : " << SD->getInterfaceType();
    else
      OS << " : (no type set)";
    break;
  }
  case DeclContextKind::EnumElementDecl: {
    auto *EED = cast<EnumElementDecl>(this);
    OS << " name=" << EED->getBaseName();
    if (EED->hasInterfaceType())
      OS << " : " << EED->getInterfaceType();
    else
      OS << " : (no type set)";
    break;
  }
  case DeclContextKind::Initializer:
    switch (cast<Initializer>(this)->getInitializerKind()) {
    case InitializerKind::PatternBinding: {
      auto init = cast<PatternBindingInitializer>(this);
      OS << " PatternBinding 0x" << (void*) init->getBinding()
         << " #" << init->getBindingIndex();
      break;
//.........这里部分代码省略.........

static void dumpAttribute(raw_ostream &OS, const DWARFDie &Die,
                          uint32_t *OffsetPtr, dwarf::Attribute Attr,
                          dwarf::Form Form, unsigned Indent,
                          DIDumpOptions DumpOpts) {
  if (!Die.isValid())
    return;
  const char BaseIndent[] = "            ";
  OS << BaseIndent;
  OS.indent(Indent+2);
  auto attrString = AttributeString(Attr);
  if (!attrString.empty())
    WithColor(OS, syntax::Attribute) << attrString;
  else
    WithColor(OS, syntax::Attribute).get() << format("DW_AT_Unknown_%x", Attr);

  if (DumpOpts.Verbose) {
    auto formString = FormEncodingString(Form);
    if (!formString.empty())
      OS << " [" << formString << ']';
    else
      OS << format(" [DW_FORM_Unknown_%x]", Form);
  }

  DWARFUnit *U = Die.getDwarfUnit();
  DWARFFormValue formValue(Form);

  if (!formValue.extractValue(U->getDebugInfoExtractor(), OffsetPtr, U))
    return;

  OS << "\t(";

  StringRef Name;
  std::string File;
  auto Color = syntax::Enumerator;
  if (Attr == DW_AT_decl_file || Attr == DW_AT_call_file) {
    Color = syntax::String;
    if (const auto *LT = U->getContext().getLineTableForUnit(U))
      if (LT->getFileNameByIndex(formValue.getAsUnsignedConstant().getValue(), U->getCompilationDir(), DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath, File)) {
        File = '"' + File + '"';
        Name = File;
      }
  } else if (Optional<uint64_t> Val = formValue.getAsUnsignedConstant())
    Name = AttributeValueString(Attr, *Val);

  if (!Name.empty())
    WithColor(OS, Color) << Name;
  else if (Attr == DW_AT_decl_line || Attr == DW_AT_call_line)
    OS << *formValue.getAsUnsignedConstant();
  else if (Attr == DW_AT_location || Attr == DW_AT_frame_base ||
           Attr == DW_AT_data_member_location)
    dumpLocation(OS, formValue, U, sizeof(BaseIndent) + Indent + 4, DumpOpts);
  else
    formValue.dump(OS, DumpOpts);

  // We have dumped the attribute raw value. For some attributes
  // having both the raw value and the pretty-printed value is
  // interesting. These attributes are handled below.
  if (Attr == DW_AT_specification || Attr == DW_AT_abstract_origin) {
    if (const char *Name = Die.getAttributeValueAsReferencedDie(Attr).getName(DINameKind::LinkageName))
        OS << " \"" << Name << '\"';
  } else if (Attr == DW_AT_APPLE_property_attribute) {
    if (Optional<uint64_t> OptVal = formValue.getAsUnsignedConstant())
      dumpApplePropertyAttribute(OS, *OptVal);
  } else if (Attr == DW_AT_ranges) {
    const DWARFObject &Obj = Die.getDwarfUnit()->getContext().getDWARFObj();
    dumpRanges(Obj, OS, Die.getAddressRanges(), U->getAddressByteSize(),
               sizeof(BaseIndent) + Indent + 4, DumpOpts);
  }

  OS << ")\n";
}