Exemple #1
0
static void FindEntitiesInDC(DeclContext *DC, Program &Prog,
                             EntityHandler &Handler) {
  for (DeclContext::decl_iterator
         I = DC->decls_begin(), E = DC->decls_end(); I != E; ++I) {
    if (I->getLocation().isInvalid())
      continue;
    Entity Ent = Entity::get(*I, Prog);
    if (Ent.isValid())
      Handler.Handle(Ent);
    if (DeclContext *SubDC = dyn_cast<DeclContext>(*I))
      FindEntitiesInDC(SubDC, Prog, Handler);
  }
}
Exemple #2
0
void DeclContextPrinter::PrintDeclContext(const DeclContext* DC,
                                          unsigned Indentation) {
  // Print DeclContext name.
  switch (DC->getDeclKind()) {
  case Decl::TranslationUnit:
    Out << "[translation unit] " << DC;
    break;
  case Decl::Namespace: {
    Out << "[namespace] ";
    const NamespaceDecl* ND = cast<NamespaceDecl>(DC);
    Out << *ND;
    break;
  }
  case Decl::Enum: {
    const EnumDecl* ED = cast<EnumDecl>(DC);
    if (ED->isCompleteDefinition())
      Out << "[enum] ";
    else
      Out << "<enum> ";
    Out << *ED;
    break;
  }
  case Decl::Record: {
    const RecordDecl* RD = cast<RecordDecl>(DC);
    if (RD->isCompleteDefinition())
      Out << "[struct] ";
    else
      Out << "<struct> ";
    Out << *RD;
    break;
  }
  case Decl::CXXRecord: {
    const CXXRecordDecl* RD = cast<CXXRecordDecl>(DC);
    if (RD->isCompleteDefinition())
      Out << "[class] ";
    else
      Out << "<class> ";
    Out << *RD << ' ' << DC;
    break;
  }
  case Decl::ObjCMethod:
    Out << "[objc method]";
    break;
  case Decl::ObjCInterface:
    Out << "[objc interface]";
    break;
  case Decl::ObjCCategory:
    Out << "[objc category]";
    break;
  case Decl::ObjCProtocol:
    Out << "[objc protocol]";
    break;
  case Decl::ObjCImplementation:
    Out << "[objc implementation]";
    break;
  case Decl::ObjCCategoryImpl:
    Out << "[objc categoryimpl]";
    break;
  case Decl::LinkageSpec:
    Out << "[linkage spec]";
    break;
  case Decl::Block:
    Out << "[block]";
    break;
  case Decl::Function: {
    const FunctionDecl* FD = cast<FunctionDecl>(DC);
    if (FD->doesThisDeclarationHaveABody())
      Out << "[function] ";
    else
      Out << "<function> ";
    Out << *FD;
    // Print the parameters.
    Out << "(";
    bool PrintComma = false;
    for (FunctionDecl::param_const_iterator I = FD->param_begin(),
           E = FD->param_end(); I != E; ++I) {
      if (PrintComma)
        Out << ", ";
      else
        PrintComma = true;
      Out << **I;
    }
    Out << ")";
    break;
  }
  case Decl::CXXMethod: {
    const CXXMethodDecl* D = cast<CXXMethodDecl>(DC);
    if (D->isOutOfLine())
      Out << "[c++ method] ";
    else if (D->isImplicit())
      Out << "(c++ method) ";
    else
      Out << "<c++ method> ";
    Out << *D;
    // Print the parameters.
    Out << "(";
    bool PrintComma = false;
    for (FunctionDecl::param_const_iterator I = D->param_begin(),
           E = D->param_end(); I != E; ++I) {
      if (PrintComma)
        Out << ", ";
      else
        PrintComma = true;
      Out << **I;
    }
    Out << ")";

    // Check the semantic DeclContext.
    const DeclContext* SemaDC = D->getDeclContext();
    const DeclContext* LexicalDC = D->getLexicalDeclContext();
    if (SemaDC != LexicalDC)
      Out << " [[" << SemaDC << "]]";

    break;
  }
  case Decl::CXXConstructor: {
    const CXXConstructorDecl* D = cast<CXXConstructorDecl>(DC);
    if (D->isOutOfLine())
      Out << "[c++ ctor] ";
    else if (D->isImplicit())
      Out << "(c++ ctor) ";
    else
      Out << "<c++ ctor> ";
    Out << *D;
    // Print the parameters.
    Out << "(";
    bool PrintComma = false;
    for (FunctionDecl::param_const_iterator I = D->param_begin(),
           E = D->param_end(); I != E; ++I) {
      if (PrintComma)
        Out << ", ";
      else
        PrintComma = true;
      Out << **I;
    }
    Out << ")";

    // Check the semantic DC.
    const DeclContext* SemaDC = D->getDeclContext();
    const DeclContext* LexicalDC = D->getLexicalDeclContext();
    if (SemaDC != LexicalDC)
      Out << " [[" << SemaDC << "]]";
    break;
  }
  case Decl::CXXDestructor: {
    const CXXDestructorDecl* D = cast<CXXDestructorDecl>(DC);
    if (D->isOutOfLine())
      Out << "[c++ dtor] ";
    else if (D->isImplicit())
      Out << "(c++ dtor) ";
    else
      Out << "<c++ dtor> ";
    Out << *D;
    // Check the semantic DC.
    const DeclContext* SemaDC = D->getDeclContext();
    const DeclContext* LexicalDC = D->getLexicalDeclContext();
    if (SemaDC != LexicalDC)
      Out << " [[" << SemaDC << "]]";
    break;
  }
  case Decl::CXXConversion: {
    const CXXConversionDecl* D = cast<CXXConversionDecl>(DC);
    if (D->isOutOfLine())
      Out << "[c++ conversion] ";
    else if (D->isImplicit())
      Out << "(c++ conversion) ";
    else
      Out << "<c++ conversion> ";
    Out << *D;
    // Check the semantic DC.
    const DeclContext* SemaDC = D->getDeclContext();
    const DeclContext* LexicalDC = D->getLexicalDeclContext();
    if (SemaDC != LexicalDC)
      Out << " [[" << SemaDC << "]]";
    break;
  }

  default:
    llvm_unreachable("a decl that inherits DeclContext isn't handled");
  }

  Out << "\n";

  // Print decls in the DeclContext.
  for (DeclContext::decl_iterator I = DC->decls_begin(), E = DC->decls_end();
       I != E; ++I) {
    for (unsigned i = 0; i < Indentation; ++i)
      Out << "  ";

    Decl::Kind DK = I->getKind();
    switch (DK) {
    case Decl::Namespace:
    case Decl::Enum:
    case Decl::Record:
    case Decl::CXXRecord:
    case Decl::ObjCMethod:
    case Decl::ObjCInterface:
    case Decl::ObjCCategory:
    case Decl::ObjCProtocol:
    case Decl::ObjCImplementation:
    case Decl::ObjCCategoryImpl:
    case Decl::LinkageSpec:
    case Decl::Block:
    case Decl::Function:
    case Decl::CXXMethod:
    case Decl::CXXConstructor:
    case Decl::CXXDestructor:
    case Decl::CXXConversion:
    {
      DeclContext* DC = cast<DeclContext>(*I);
      PrintDeclContext(DC, Indentation+2);
      break;
    }
    case Decl::IndirectField: {
      IndirectFieldDecl* IFD = cast<IndirectFieldDecl>(*I);
      Out << "<IndirectField> " << *IFD << '\n';
      break;
    }
    case Decl::Label: {
      LabelDecl *LD = cast<LabelDecl>(*I);
      Out << "<Label> " << *LD << '\n';
      break;
    }
    case Decl::Field: {
      FieldDecl *FD = cast<FieldDecl>(*I);
      Out << "<field> " << *FD << '\n';
      break;
    }
    case Decl::Typedef:
    case Decl::TypeAlias: {
      TypedefNameDecl* TD = cast<TypedefNameDecl>(*I);
      Out << "<typedef> " << *TD << '\n';
      break;
    }
    case Decl::EnumConstant: {
      EnumConstantDecl* ECD = cast<EnumConstantDecl>(*I);
      Out << "<enum constant> " << *ECD << '\n';
      break;
    }
    case Decl::Var: {
      VarDecl* VD = cast<VarDecl>(*I);
      Out << "<var> " << *VD << '\n';
      break;
    }
    case Decl::ImplicitParam: {
      ImplicitParamDecl* IPD = cast<ImplicitParamDecl>(*I);
      Out << "<implicit parameter> " << *IPD << '\n';
      break;
    }
    case Decl::ParmVar: {
      ParmVarDecl* PVD = cast<ParmVarDecl>(*I);
      Out << "<parameter> " << *PVD << '\n';
      break;
    }
    case Decl::ObjCProperty: {
      ObjCPropertyDecl* OPD = cast<ObjCPropertyDecl>(*I);
      Out << "<objc property> " << *OPD << '\n';
      break;
    }
    case Decl::FunctionTemplate: {
      FunctionTemplateDecl* FTD = cast<FunctionTemplateDecl>(*I);
      Out << "<function template> " << *FTD << '\n';
      break;
    }
    case Decl::FileScopeAsm: {
      Out << "<file-scope asm>\n";
      break;
    }
    case Decl::UsingDirective: {
      Out << "<using directive>\n";
      break;
    }
    case Decl::NamespaceAlias: {
      NamespaceAliasDecl* NAD = cast<NamespaceAliasDecl>(*I);
      Out << "<namespace alias> " << *NAD << '\n';
      break;
    }
    case Decl::ClassTemplate: {
      ClassTemplateDecl *CTD = cast<ClassTemplateDecl>(*I);
      Out << "<class template> " << *CTD << '\n';
      break;
    }
    default:
      Out << "DeclKind: " << DK << '"' << *I << "\"\n";
      llvm_unreachable("decl unhandled");
    }
  }
}
Exemple #3
0
void DeclPrinter::VisitDeclContext(DeclContext *DC, bool Indent) {
  if (Policy.TerseOutput)
    return;

  if (Indent)
    Indentation += Policy.Indentation;

  SmallVector<Decl*, 2> Decls;
  bool MergeOneDecl = false;
  for (DeclContext::decl_iterator D = DC->decls_begin(), DEnd = DC->decls_end();
       D != DEnd; ++D) {

    // Don't print ObjCIvarDecls, as they are printed when visiting the
    // containing ObjCInterfaceDecl.
    if (isa<ObjCIvarDecl>(*D))
      continue;

    // Skip over implicit declarations in pretty-printing mode.
    if (D->isImplicit())
      continue;

    // Don't print implicit specializations, as they are printed when visiting
    // corresponding templates.
    if (auto FD = dyn_cast<FunctionDecl>(*D))
      if (FD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation &&
          !isa<ClassTemplateSpecializationDecl>(DC))
        continue;

    // The next bits of code handles stuff like "struct {int x;} a,b"; we're
    // forced to merge the declarations because there's no other way to
    // refer to the struct in question.  This limited merging is safe without
    // a bunch of other checks because it only merges declarations directly
    // referring to the tag, not typedefs.
    //
    // Check whether the current declaration should be grouped with a previous
    // unnamed struct.
    QualType CurDeclType = getDeclType(*D);
    if (!Decls.empty() && !CurDeclType.isNull() &&
	(!MergeOneDecl || Decls.size() == 1)) {
      QualType BaseType = GetBaseType(CurDeclType);
      if (!BaseType.isNull() && isa<ElaboratedType>(BaseType))
        BaseType = cast<ElaboratedType>(BaseType)->getNamedType();
      if (!BaseType.isNull() && isa<TagType>(BaseType) &&
          cast<TagType>(BaseType)->getDecl() == Decls[0]) {
        Decls.push_back(*D);
	continue;
      }
    }

    // If we have a merged group waiting to be handled, handle it now.
    if (!Decls.empty())
      ProcessDeclGroup(Decls);

    // If the current declaration is an unnamed tag type, save it
    // so we can merge it with the subsequent declaration(s) using it.
    if (isa<TagDecl>(*D) && !cast<TagDecl>(*D)->getIdentifier()) {
      Decls.push_back(*D);
      MergeOneDecl = false;
      continue;
    }

    // Attempt to merge named tags too, but
    // only with a single decl.  (This cleans
    // up warnings about unused declarations
    // when a struct is defined inline inside
    // another struct.)  Only merge one variable
    // declaration, so we don't have to worry
    // about whether the storage class and/or
    // qualifiers match.
    if (isa<TagDecl>(*D)) {
      Decls.push_back(*D);
      MergeOneDecl = true;
      continue;
    }

    if (isa<AccessSpecDecl>(*D)) {
      Indentation -= Policy.Indentation;
      this->Indent();
      Print(D->getAccess());
      Out << ":\n";
      Indentation += Policy.Indentation;
      continue;
    }

    this->Indent();
    Visit(*D);

    // FIXME: Need to be able to tell the DeclPrinter when
    const char *Terminator = nullptr;
    if (isa<OMPThreadPrivateDecl>(*D) || isa<OMPDeclareReductionDecl>(*D) || isa<PragmaPupcDecl>(*D))
      Terminator = nullptr;
    else if (isa<ObjCMethodDecl>(*D) && cast<ObjCMethodDecl>(*D)->hasBody())
      Terminator = nullptr;
    else if (auto FD = dyn_cast<FunctionDecl>(*D)) {
      if (FD->isThisDeclarationADefinition())
        Terminator = nullptr;
      else
        Terminator = ";";
    } else if (auto TD = dyn_cast<FunctionTemplateDecl>(*D)) {
      if (TD->getTemplatedDecl()->isThisDeclarationADefinition())
        Terminator = nullptr;
      else
        Terminator = ";";
    } else if (isa<NamespaceDecl>(*D) || isa<LinkageSpecDecl>(*D) ||
             isa<ObjCImplementationDecl>(*D) ||
             isa<ObjCInterfaceDecl>(*D) ||
             isa<ObjCProtocolDecl>(*D) ||
             isa<ObjCCategoryImplDecl>(*D) ||
             isa<ObjCCategoryDecl>(*D))
      Terminator = nullptr;
    else if (isa<EnumConstantDecl>(*D)) {
      DeclContext::decl_iterator Next = D;
      ++Next;
      if (Next != DEnd)
        Terminator = ",";
    } else
      Terminator = ";";

    if (Terminator)
      Out << Terminator;
    if (!Policy.TerseOutput &&
        ((isa<FunctionDecl>(*D) &&
          cast<FunctionDecl>(*D)->doesThisDeclarationHaveABody()) ||
         (isa<FunctionTemplateDecl>(*D) &&
          cast<FunctionTemplateDecl>(*D)->getTemplatedDecl()->doesThisDeclarationHaveABody())))
      ; // StmtPrinter already added '\n' after CompoundStmt.
    else
      Out << "\n";

    // Declare target attribute is special one, natural spelling for the pragma
    // assumes "ending" construct so print it here.
    if (D->hasAttr<OMPDeclareTargetDeclAttr>())
      Out << "#pragma omp end declare target\n";
  }

  if (!Decls.empty())
    ProcessDeclGroup(Decls);

  if (Indent)
    Indentation -= Policy.Indentation;
}
Exemple #4
0
void DeclPrinter::VisitDeclContext(DeclContext *DC, bool Indent) {
  if (Policy.TerseOutput)
    return;

  if (Indent)
    Indentation += Policy.Indentation;

  SmallVector<Decl*, 2> Decls;
  for (DeclContext::decl_iterator D = DC->decls_begin(), DEnd = DC->decls_end();
       D != DEnd; ++D) {

    // Don't print ObjCIvarDecls, as they are printed when visiting the
    // containing ObjCInterfaceDecl.
    if (isa<ObjCIvarDecl>(*D))
      continue;

    // Skip over implicit declarations in pretty-printing mode.
    if (D->isImplicit())
      continue;

    // The next bits of code handles stuff like "struct {int x;} a,b"; we're
    // forced to merge the declarations because there's no other way to
    // refer to the struct in question.  This limited merging is safe without
    // a bunch of other checks because it only merges declarations directly
    // referring to the tag, not typedefs.
    //
    // Check whether the current declaration should be grouped with a previous
    // unnamed struct.
    QualType CurDeclType = getDeclType(*D);
    if (!Decls.empty() && !CurDeclType.isNull()) {
      QualType BaseType = GetBaseType(CurDeclType);
      if (!BaseType.isNull() && isa<ElaboratedType>(BaseType))
        BaseType = cast<ElaboratedType>(BaseType)->getNamedType();
      if (!BaseType.isNull() && isa<TagType>(BaseType) &&
          cast<TagType>(BaseType)->getDecl() == Decls[0]) {
        Decls.push_back(*D);
        continue;
      }
    }

    // If we have a merged group waiting to be handled, handle it now.
    if (!Decls.empty())
      ProcessDeclGroup(Decls);

    // If the current declaration is an unnamed tag type, save it
    // so we can merge it with the subsequent declaration(s) using it.
    if (isa<TagDecl>(*D) && !cast<TagDecl>(*D)->getIdentifier()) {
      Decls.push_back(*D);
      continue;
    }

    if (isa<AccessSpecDecl>(*D)) {
      Indentation -= Policy.Indentation;
      this->Indent();
      Print(D->getAccess());
      Out << ":\n";
      Indentation += Policy.Indentation;
      continue;
    }

    this->Indent();
    Visit(*D);

    // FIXME: Need to be able to tell the DeclPrinter when
    const char *Terminator = nullptr;
    if (isa<OMPThreadPrivateDecl>(*D) || isa<OMPDeclareReductionDecl>(*D))
      Terminator = nullptr;
    else if (isa<FunctionDecl>(*D) &&
             cast<FunctionDecl>(*D)->isThisDeclarationADefinition())
      Terminator = nullptr;
    else if (isa<ObjCMethodDecl>(*D) && cast<ObjCMethodDecl>(*D)->getBody())
      Terminator = nullptr;
    else if (isa<NamespaceDecl>(*D) || isa<LinkageSpecDecl>(*D) ||
             isa<ObjCImplementationDecl>(*D) ||
             isa<ObjCInterfaceDecl>(*D) ||
             isa<ObjCProtocolDecl>(*D) ||
             isa<ObjCCategoryImplDecl>(*D) ||
             isa<ObjCCategoryDecl>(*D))
      Terminator = nullptr;
    else if (isa<EnumConstantDecl>(*D)) {
      DeclContext::decl_iterator Next = D;
      ++Next;
      if (Next != DEnd)
        Terminator = ",";
    } else
      Terminator = ";";

    if (Terminator)
      Out << Terminator;
    Out << "\n";

    // Declare target attribute is special one, natural spelling for the pragma
    // assumes "ending" construct so print it here.
    if (D->hasAttr<OMPDeclareTargetDeclAttr>())
      Out << "#pragma omp end declare target\n";
  }

  if (!Decls.empty())
    ProcessDeclGroup(Decls);

  if (Indent)
    Indentation -= Policy.Indentation;
}
void DeclContextPrinter::PrintDeclContext(const DeclContext* DC, 
                                          unsigned Indentation) {
  // Print DeclContext name.
  switch (DC->getDeclKind()) {
  case Decl::TranslationUnit:
    Out << "[translation unit] " << DC;
    break;
  case Decl::Namespace: {
    Out << "[namespace] ";
    const NamespaceDecl* ND = cast<NamespaceDecl>(DC);
    Out << ND->getNameAsString();
    break;
  }
  case Decl::Enum: {
    const EnumDecl* ED = cast<EnumDecl>(DC);
    if (ED->isDefinition())
      Out << "[enum] ";
    else
      Out << "<enum> ";
    Out << ED->getNameAsString();
    break;
  }
  case Decl::Record: {
    const RecordDecl* RD = cast<RecordDecl>(DC);
    if (RD->isDefinition())
      Out << "[struct] ";
    else
      Out << "<struct> ";
    Out << RD->getNameAsString();
    break;
  }
  case Decl::CXXRecord: {
    const CXXRecordDecl* RD = cast<CXXRecordDecl>(DC);
    if (RD->isDefinition())
      Out << "[class] ";
    else
      Out << "<class> ";
    Out << RD->getNameAsString() << " " << DC;
    break;
  }
  case Decl::ObjCMethod:
    Out << "[objc method]";
    break;
  case Decl::ObjCInterface:
    Out << "[objc interface]";
    break;
  case Decl::ObjCCategory:
    Out << "[objc category]";
    break;
  case Decl::ObjCProtocol:
    Out << "[objc protocol]";
    break;
  case Decl::ObjCImplementation:
    Out << "[objc implementation]";
    break;
  case Decl::ObjCCategoryImpl:
    Out << "[objc categoryimpl]";
    break;
  case Decl::LinkageSpec:
    Out << "[linkage spec]";
    break;
  case Decl::Block:
    Out << "[block]";
    break;
  case Decl::Function: {
    const FunctionDecl* FD = cast<FunctionDecl>(DC);
    if (FD->isThisDeclarationADefinition())
      Out << "[function] ";
    else
      Out << "<function> ";
    Out << FD->getNameAsString();
    // Print the parameters.
    Out << "(";
    bool PrintComma = false;
    for (FunctionDecl::param_const_iterator I = FD->param_begin(), 
           E = FD->param_end(); I != E; ++I) {
      if (PrintComma)
        Out << ", ";
      else
        PrintComma = true;
      Out << (*I)->getNameAsString();
    }
    Out << ")";
    break;
  }
  case Decl::CXXMethod: {
    const CXXMethodDecl* D = cast<CXXMethodDecl>(DC);
    if (D->isOutOfLineDefinition())
      Out << "[c++ method] ";
    else if (D->isImplicit())
      Out << "(c++ method) ";
    else
      Out << "<c++ method> ";
    Out << D->getNameAsString();
    // Print the parameters.
    Out << "(";
    bool PrintComma = false;
    for (FunctionDecl::param_const_iterator I = D->param_begin(), 
           E = D->param_end(); I != E; ++I) {
      if (PrintComma)
        Out << ", ";
      else
        PrintComma = true;
      Out << (*I)->getNameAsString();
    }
    Out << ")";

    // Check the semantic DeclContext.
    const DeclContext* SemaDC = D->getDeclContext();
    const DeclContext* LexicalDC = D->getLexicalDeclContext();
    if (SemaDC != LexicalDC)
      Out << " [[" << SemaDC << "]]";

    break;
  }
  case Decl::CXXConstructor: {
    const CXXConstructorDecl* D = cast<CXXConstructorDecl>(DC);
    if (D->isOutOfLineDefinition())
      Out << "[c++ ctor] ";
    else if (D->isImplicit())
      Out << "(c++ ctor) ";
    else
      Out << "<c++ ctor> ";
    Out << D->getNameAsString();
    // Print the parameters.
    Out << "(";
    bool PrintComma = false;
    for (FunctionDecl::param_const_iterator I = D->param_begin(), 
           E = D->param_end(); I != E; ++I) {
      if (PrintComma)
        Out << ", ";
      else
        PrintComma = true;
      Out << (*I)->getNameAsString();
    }
    Out << ")";

    // Check the semantic DC.
    const DeclContext* SemaDC = D->getDeclContext();
    const DeclContext* LexicalDC = D->getLexicalDeclContext();
    if (SemaDC != LexicalDC)
      Out << " [[" << SemaDC << "]]";
    break;
  }
  case Decl::CXXDestructor: {
    const CXXDestructorDecl* D = cast<CXXDestructorDecl>(DC);
    if (D->isOutOfLineDefinition())
      Out << "[c++ dtor] ";
    else if (D->isImplicit())
      Out << "(c++ dtor) ";
    else
      Out << "<c++ dtor> ";
    Out << D->getNameAsString();
    // Check the semantic DC.
    const DeclContext* SemaDC = D->getDeclContext();
    const DeclContext* LexicalDC = D->getLexicalDeclContext();
    if (SemaDC != LexicalDC)
      Out << " [[" << SemaDC << "]]";
    break;
  }
  case Decl::CXXConversion: {
    const CXXConversionDecl* D = cast<CXXConversionDecl>(DC);
    if (D->isOutOfLineDefinition())
      Out << "[c++ conversion] ";
    else if (D->isImplicit())
      Out << "(c++ conversion) ";
    else
      Out << "<c++ conversion> ";
    Out << D->getNameAsString();
    // Check the semantic DC.
    const DeclContext* SemaDC = D->getDeclContext();
    const DeclContext* LexicalDC = D->getLexicalDeclContext();
    if (SemaDC != LexicalDC)
      Out << " [[" << SemaDC << "]]";
    break;
  }

  default:
    assert(0 && "a decl that inherits DeclContext isn't handled");
  }

  Out << "\n";

  // Print decls in the DeclContext.
  // FIXME: Should not use a NULL DeclContext!
  ASTContext *Context = 0;
  for (DeclContext::decl_iterator I = DC->decls_begin(*Context), 
         E = DC->decls_end(*Context);
       I != E; ++I) {
    for (unsigned i = 0; i < Indentation; ++i)
      Out << "  ";

    Decl::Kind DK = I->getKind();
    switch (DK) {
    case Decl::Namespace:
    case Decl::Enum:
    case Decl::Record:
    case Decl::CXXRecord:
    case Decl::ObjCMethod:
    case Decl::ObjCInterface:
    case Decl::ObjCCategory: 
    case Decl::ObjCProtocol:
    case Decl::ObjCImplementation:
    case Decl::ObjCCategoryImpl:
    case Decl::LinkageSpec:
    case Decl::Block:
    case Decl::Function:
    case Decl::CXXMethod:
    case Decl::CXXConstructor:
    case Decl::CXXDestructor:
    case Decl::CXXConversion:
    {
      DeclContext* DC = cast<DeclContext>(*I);
      PrintDeclContext(DC, Indentation+2);
      break;
    }
    case Decl::Field: {
      FieldDecl* FD = cast<FieldDecl>(*I);
      Out << "<field> " << FD->getNameAsString() << "\n";
      break;
    }
    case Decl::Typedef: {
      TypedefDecl* TD = cast<TypedefDecl>(*I);
      Out << "<typedef> " << TD->getNameAsString() << "\n";
      break;
    }
    case Decl::EnumConstant: {
      EnumConstantDecl* ECD = cast<EnumConstantDecl>(*I);
      Out << "<enum constant> " << ECD->getNameAsString() << "\n";
      break;
    }
    case Decl::Var: {
      VarDecl* VD = cast<VarDecl>(*I);
      Out << "<var> " << VD->getNameAsString() << "\n";
      break;
    }
    case Decl::ImplicitParam: {
      ImplicitParamDecl* IPD = cast<ImplicitParamDecl>(*I);
      Out << "<implicit parameter> " << IPD->getNameAsString() << "\n";
      break;
    }
    case Decl::ParmVar: {
      ParmVarDecl* PVD = cast<ParmVarDecl>(*I);
      Out << "<parameter> " << PVD->getNameAsString() << "\n";
      break;
    }
    case Decl::OriginalParmVar: {
      OriginalParmVarDecl* OPVD = cast<OriginalParmVarDecl>(*I);
      Out << "<original parameter> " << OPVD->getNameAsString() << "\n";
      break;
    }
    case Decl::ObjCProperty: {
      ObjCPropertyDecl* OPD = cast<ObjCPropertyDecl>(*I);
      Out << "<objc property> " << OPD->getNameAsString() << "\n";
      break;
    }
    default:
      fprintf(stderr, "DeclKind: %d \"%s\"\n", DK, I->getDeclKindName());
      assert(0 && "decl unhandled");
    }
  }
}