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usr / src / contrib / llvm-project / clang / include / clang / AST /

📁 ..
📄 APValue.h(20.92 KB)
📄 AST.h(907 B)
📄 ASTConcept.h(7.02 KB)
📄 ASTConsumer.h(5.99 KB)
📄 ASTContext.h(122.68 KB)
📄 ASTContextAllocate.h(1.33 KB)
📄 ASTDiagnostic.h(1.34 KB)
📄 ASTDumper.h(1.59 KB)
📄 ASTDumperUtils.h(3.49 KB)
📄 ASTFwd.h(1.01 KB)
📄 ASTImporter.h(22.86 KB)
📄 ASTImporterLookupTable.h(2.7 KB)
📄 ASTImporterSharedState.h(2.51 KB)
📄 ASTLambda.h(3.04 KB)
📄 ASTMutationListener.h(5.84 KB)
📄 ASTNodeTraverser.h(21.38 KB)
📄 ASTStructuralEquivalence.h(5.08 KB)
📄 ASTTypeTraits.h(19.65 KB)
📄 ASTUnresolvedSet.h(3.37 KB)
📄 ASTVector.h(11.75 KB)
📄 AbstractBasicReader.h(8.82 KB)
📄 AbstractBasicWriter.h(7.97 KB)
📄 AbstractTypeReader.h(922 B)
📄 AbstractTypeWriter.h(944 B)
📄 Attr.h(11.87 KB)
📄 AttrIterator.h(4.14 KB)
📄 AttrVisitor.h(2.56 KB)
📄 Availability.h(1.97 KB)
📄 BaseSubobject.h(2.74 KB)
📄 BuiltinTypes.def(9.91 KB)
📄 CXXInheritance.h(14.87 KB)
📄 CXXRecordDeclDefinitionBits.def(9.23 KB)
📄 CanonicalType.h(24.86 KB)
📄 CharUnits.h(8.02 KB)
📄 Comment.h(31.03 KB)
📄 CommentBriefParser.h(1.39 KB)
📄 CommentCommandTraits.h(5.86 KB)
📄 CommentCommands.td(9.27 KB)
📄 CommentDiagnostic.h(509 B)
📄 CommentHTMLNamedCharacterReferences.td(4.98 KB)
📄 CommentHTMLTags.td(2.17 KB)
📄 CommentLexer.h(9.96 KB)
📄 CommentParser.h(3.24 KB)
📄 CommentSema.h(9.87 KB)
📄 CommentVisitor.h(2.38 KB)
📄 ComparisonCategories.h(7.41 KB)
📄 ComputeDependence.h(7.41 KB)
📄 CurrentSourceLocExprScope.h(2.43 KB)
📄 DataCollection.h(2.45 KB)
📄 Decl.h(168.07 KB)
📄 DeclAccessPair.h(1.77 KB)
📄 DeclBase.h(93.13 KB)
📄 DeclCXX.h(151.69 KB)
📄 DeclContextInternals.h(8.22 KB)
📄 DeclFriend.h(8.06 KB)
📄 DeclGroup.h(4.11 KB)
📄 DeclLookups.h(3.64 KB)
📄 DeclObjC.h(101.2 KB)
📄 DeclObjCCommon.h(1.72 KB)
📄 DeclOpenMP.h(19.33 KB)
📄 DeclTemplate.h(122.19 KB)
📄 DeclVisitor.h(2.51 KB)
📄 DeclarationName.h(33.77 KB)
📄 DependenceFlags.h(10.99 KB)
📄 DependentDiagnostic.h(5.4 KB)
📄 EvaluatedExprVisitor.h(4.45 KB)
📄 Expr.h(234.85 KB)
📄 ExprCXX.h(169.78 KB)
📄 ExprConcepts.h(19.62 KB)
📄 ExprObjC.h(58.96 KB)
📄 ExprOpenMP.h(15.48 KB)
📄 ExternalASTMerger.h(8.11 KB)
📄 ExternalASTSource.h(20.55 KB)
📄 FormatString.h(22.81 KB)
📄 GlobalDecl.h(7.16 KB)
📄 JSONNodeDumper.h(17.53 KB)
📄 LambdaCapture.h(4.71 KB)
📄 LexicallyOrderedRecursiveASTVisitor.h(5.92 KB)
📄 LocInfoType.h(1.84 KB)
📄 Mangle.h(10.65 KB)
📄 MangleNumberingContext.h(2 KB)
📄 NSAPI.h(9.23 KB)
📄 NestedNameSpecifier.h(18.53 KB)
📄 NonTrivialTypeVisitor.h(4 KB)
📄 ODRHash.h(3.42 KB)
📄 OSLog.h(5.08 KB)
📄 OpenMPClause.h(276.08 KB)
📄 OperationKinds.def(14.91 KB)
📄 OperationKinds.h(1.5 KB)
📄 OptionalDiagnostic.h(2.39 KB)
📄 ParentMap.h(1.89 KB)
📄 ParentMapContext.h(4.74 KB)
📄 PrettyDeclStackTrace.h(1.39 KB)
📄 PrettyPrinter.h(8.47 KB)
📄 PropertiesBase.td(17.03 KB)
📄 QualTypeNames.h(3.15 KB)
📄 RawCommentList.h(6.6 KB)
📄 RecordLayout.h(11.49 KB)
📄 RecursiveASTVisitor.h(124.41 KB)
📄 Redeclarable.h(14.34 KB)
📄 SelectorLocationsKind.h(3.28 KB)
📄 Stmt.h(113 KB)
📄 StmtCXX.h(17.59 KB)
📄 StmtDataCollectors.td(5.64 KB)
📄 StmtGraphTraits.h(2.18 KB)
📄 StmtIterator.h(4.2 KB)
📄 StmtObjC.h(12.86 KB)
📄 StmtOpenMP.h(189.5 KB)
📄 StmtVisitor.h(8.74 KB)
📄 TemplateArgumentVisitor.h(3.38 KB)
📄 TemplateBase.h(22.86 KB)
📄 TemplateName.h(19.34 KB)
📄 TextNodeDumper.h(15.7 KB)
📄 Type.h(248.38 KB)
📄 TypeLoc.h(73.03 KB)
📄 TypeLocNodes.def(1.45 KB)
📄 TypeLocVisitor.h(1.76 KB)
📄 TypeOrdering.h(2.38 KB)
📄 TypeProperties.td(25.87 KB)
📄 TypeVisitor.h(3.32 KB)
📄 UnresolvedSet.h(5.25 KB)
📄 VTTBuilder.h(5.19 KB)
📄 VTableBuilder.h(20.31 KB)

Editing: JSONNodeDumper.h

//===--- JSONNodeDumper.h - Printing of AST nodes to JSON -----------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements AST dumping of components of individual AST nodes to
// a JSON.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_AST_JSONNODEDUMPER_H
#define LLVM_CLANG_AST_JSONNODEDUMPER_H

#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTDumperUtils.h"
#include "clang/AST/ASTNodeTraverser.h"
#include "clang/AST/AttrVisitor.h"
#include "clang/AST/CommentCommandTraits.h"
#include "clang/AST/CommentVisitor.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/Mangle.h"
#include "clang/AST/Type.h"
#include "llvm/Support/JSON.h"

namespace clang {

class APValue;

class NodeStreamer {
  bool FirstChild = true;
  bool TopLevel = true;
  llvm::SmallVector<std::function<void(bool IsLastChild)>, 32> Pending;

protected:
  llvm::json::OStream JOS;

public:
  /// Add a child of the current node.  Calls DoAddChild without arguments
  template <typename Fn> void AddChild(Fn DoAddChild) {
    return AddChild("", DoAddChild);
  }

/// Add a child of the current node with an optional label.
  /// Calls DoAddChild without arguments.
  template <typename Fn> void AddChild(StringRef Label, Fn DoAddChild) {
    // If we're at the top level, there's nothing interesting to do; just
    // run the dumper.
    if (TopLevel) {
      TopLevel = false;
      JOS.objectBegin();

DoAddChild();

while (!Pending.empty()) {
        Pending.back()(true);
        Pending.pop_back();
      }

JOS.objectEnd();
      TopLevel = true;
      return;
    }

// We need to capture an owning-string in the lambda because the lambda
    // is invoked in a deferred manner.
    std::string LabelStr(!Label.empty() ? Label : "inner");
    bool WasFirstChild = FirstChild;
    auto DumpWithIndent = [=](bool IsLastChild) {
      if (WasFirstChild) {
        JOS.attributeBegin(LabelStr);
        JOS.arrayBegin();
      }

FirstChild = true;
      unsigned Depth = Pending.size();
      JOS.objectBegin();

DoAddChild();

// If any children are left, they're the last at their nesting level.
      // Dump those ones out now.
      while (Depth < Pending.size()) {
        Pending.back()(true);
        this->Pending.pop_back();
      }

JOS.objectEnd();

if (IsLastChild) {
        JOS.arrayEnd();
        JOS.attributeEnd();
      }
    };

if (FirstChild) {
      Pending.push_back(std::move(DumpWithIndent));
    } else {
      Pending.back()(false);
      Pending.back() = std::move(DumpWithIndent);
    }
    FirstChild = false;
  }

NodeStreamer(raw_ostream &OS) : JOS(OS, 2) {}
};

// Dumps AST nodes in JSON format. There is no implied stability for the
// content or format of the dump between major releases of Clang, other than it
// being valid JSON output. Further, there is no requirement that the
// information dumped is a complete representation of the AST, only that the
// information presented is correct.
class JSONNodeDumper
    : public ConstAttrVisitor<JSONNodeDumper>,
      public comments::ConstCommentVisitor<JSONNodeDumper, void,
                                           const comments::FullComment *>,
      public ConstTemplateArgumentVisitor<JSONNodeDumper>,
      public ConstStmtVisitor<JSONNodeDumper>,
      public TypeVisitor<JSONNodeDumper>,
      public ConstDeclVisitor<JSONNodeDumper>,
      public NodeStreamer {
  friend class JSONDumper;

const SourceManager &SM;
  ASTContext& Ctx;
  ASTNameGenerator ASTNameGen;
  PrintingPolicy PrintPolicy;
  const comments::CommandTraits *Traits;
  StringRef LastLocFilename, LastLocPresumedFilename;
  unsigned LastLocLine, LastLocPresumedLine;

using InnerAttrVisitor = ConstAttrVisitor<JSONNodeDumper>;
  using InnerCommentVisitor =
      comments::ConstCommentVisitor<JSONNodeDumper, void,
                                    const comments::FullComment *>;
  using InnerTemplateArgVisitor = ConstTemplateArgumentVisitor<JSONNodeDumper>;
  using InnerStmtVisitor = ConstStmtVisitor<JSONNodeDumper>;
  using InnerTypeVisitor = TypeVisitor<JSONNodeDumper>;
  using InnerDeclVisitor = ConstDeclVisitor<JSONNodeDumper>;

void attributeOnlyIfTrue(StringRef Key, bool Value) {
    if (Value)
      JOS.attribute(Key, Value);
  }

void writeIncludeStack(PresumedLoc Loc, bool JustFirst = false);

// Writes the attributes of a SourceLocation object without.
  void writeBareSourceLocation(SourceLocation Loc, bool IsSpelling);

// Writes the attributes of a SourceLocation to JSON based on its presumed
  // spelling location. If the given location represents a macro invocation,
  // this outputs two sub-objects: one for the spelling and one for the
  // expansion location.
  void writeSourceLocation(SourceLocation Loc);
  void writeSourceRange(SourceRange R);
  std::string createPointerRepresentation(const void *Ptr);
  llvm::json::Object createQualType(QualType QT, bool Desugar = true);
  llvm::json::Object createBareDeclRef(const Decl *D);
  void writeBareDeclRef(const Decl *D);
  llvm::json::Object createCXXRecordDefinitionData(const CXXRecordDecl *RD);
  llvm::json::Object createCXXBaseSpecifier(const CXXBaseSpecifier &BS);
  std::string createAccessSpecifier(AccessSpecifier AS);
  llvm::json::Array createCastPath(const CastExpr *C);

void writePreviousDeclImpl(...) {}

template <typename T> void writePreviousDeclImpl(const Mergeable<T> *D) {
    const T *First = D->getFirstDecl();
    if (First != D)
      JOS.attribute("firstRedecl", createPointerRepresentation(First));
  }

template <typename T> void writePreviousDeclImpl(const Redeclarable<T> *D) {
    const T *Prev = D->getPreviousDecl();
    if (Prev)
      JOS.attribute("previousDecl", createPointerRepresentation(Prev));
  }
  void addPreviousDeclaration(const Decl *D);

StringRef getCommentCommandName(unsigned CommandID) const;

public:
  JSONNodeDumper(raw_ostream &OS, const SourceManager &SrcMgr, ASTContext &Ctx,
                 const PrintingPolicy &PrintPolicy,
                 const comments::CommandTraits *Traits)
      : NodeStreamer(OS), SM(SrcMgr), Ctx(Ctx), ASTNameGen(Ctx),
        PrintPolicy(PrintPolicy), Traits(Traits), LastLocLine(0),
        LastLocPresumedLine(0) {}

void Visit(const Attr *A);
  void Visit(const Stmt *Node);
  void Visit(const Type *T);
  void Visit(QualType T);
  void Visit(const Decl *D);

void Visit(const comments::Comment *C, const comments::FullComment *FC);
  void Visit(const TemplateArgument &TA, SourceRange R = {},
             const Decl *From = nullptr, StringRef Label = {});
  void Visit(const CXXCtorInitializer *Init);
  void Visit(const OMPClause *C);
  void Visit(const BlockDecl::Capture &C);
  void Visit(const GenericSelectionExpr::ConstAssociation &A);
  void Visit(const APValue &Value, QualType Ty);

void VisitTypedefType(const TypedefType *TT);
  void VisitFunctionType(const FunctionType *T);
  void VisitFunctionProtoType(const FunctionProtoType *T);
  void VisitRValueReferenceType(const ReferenceType *RT);
  void VisitArrayType(const ArrayType *AT);
  void VisitConstantArrayType(const ConstantArrayType *CAT);
  void VisitDependentSizedExtVectorType(const DependentSizedExtVectorType *VT);
  void VisitVectorType(const VectorType *VT);
  void VisitUnresolvedUsingType(const UnresolvedUsingType *UUT);
  void VisitUnaryTransformType(const UnaryTransformType *UTT);
  void VisitTagType(const TagType *TT);
  void VisitTemplateTypeParmType(const TemplateTypeParmType *TTPT);
  void VisitAutoType(const AutoType *AT);
  void VisitTemplateSpecializationType(const TemplateSpecializationType *TST);
  void VisitInjectedClassNameType(const InjectedClassNameType *ICNT);
  void VisitObjCInterfaceType(const ObjCInterfaceType *OIT);
  void VisitPackExpansionType(const PackExpansionType *PET);
  void VisitElaboratedType(const ElaboratedType *ET);
  void VisitMacroQualifiedType(const MacroQualifiedType *MQT);
  void VisitMemberPointerType(const MemberPointerType *MPT);

void VisitNamedDecl(const NamedDecl *ND);
  void VisitTypedefDecl(const TypedefDecl *TD);
  void VisitTypeAliasDecl(const TypeAliasDecl *TAD);
  void VisitNamespaceDecl(const NamespaceDecl *ND);
  void VisitUsingDirectiveDecl(const UsingDirectiveDecl *UDD);
  void VisitNamespaceAliasDecl(const NamespaceAliasDecl *NAD);
  void VisitUsingDecl(const UsingDecl *UD);
  void VisitUsingShadowDecl(const UsingShadowDecl *USD);
  void VisitVarDecl(const VarDecl *VD);
  void VisitFieldDecl(const FieldDecl *FD);
  void VisitFunctionDecl(const FunctionDecl *FD);
  void VisitEnumDecl(const EnumDecl *ED);
  void VisitEnumConstantDecl(const EnumConstantDecl *ECD);
  void VisitRecordDecl(const RecordDecl *RD);
  void VisitCXXRecordDecl(const CXXRecordDecl *RD);
  void VisitTemplateTypeParmDecl(const TemplateTypeParmDecl *D);
  void VisitNonTypeTemplateParmDecl(const NonTypeTemplateParmDecl *D);
  void VisitTemplateTemplateParmDecl(const TemplateTemplateParmDecl *D);
  void VisitLinkageSpecDecl(const LinkageSpecDecl *LSD);
  void VisitAccessSpecDecl(const AccessSpecDecl *ASD);
  void VisitFriendDecl(const FriendDecl *FD);

void VisitObjCIvarDecl(const ObjCIvarDecl *D);
  void VisitObjCMethodDecl(const ObjCMethodDecl *D);
  void VisitObjCTypeParamDecl(const ObjCTypeParamDecl *D);
  void VisitObjCCategoryDecl(const ObjCCategoryDecl *D);
  void VisitObjCCategoryImplDecl(const ObjCCategoryImplDecl *D);
  void VisitObjCProtocolDecl(const ObjCProtocolDecl *D);
  void VisitObjCInterfaceDecl(const ObjCInterfaceDecl *D);
  void VisitObjCImplementationDecl(const ObjCImplementationDecl *D);
  void VisitObjCCompatibleAliasDecl(const ObjCCompatibleAliasDecl *D);
  void VisitObjCPropertyDecl(const ObjCPropertyDecl *D);
  void VisitObjCPropertyImplDecl(const ObjCPropertyImplDecl *D);
  void VisitBlockDecl(const BlockDecl *D);

void VisitDeclRefExpr(const DeclRefExpr *DRE);
  void VisitPredefinedExpr(const PredefinedExpr *PE);
  void VisitUnaryOperator(const UnaryOperator *UO);
  void VisitBinaryOperator(const BinaryOperator *BO);
  void VisitCompoundAssignOperator(const CompoundAssignOperator *CAO);
  void VisitMemberExpr(const MemberExpr *ME);
  void VisitCXXNewExpr(const CXXNewExpr *NE);
  void VisitCXXDeleteExpr(const CXXDeleteExpr *DE);
  void VisitCXXThisExpr(const CXXThisExpr *TE);
  void VisitCastExpr(const CastExpr *CE);
  void VisitImplicitCastExpr(const ImplicitCastExpr *ICE);
  void VisitCallExpr(const CallExpr *CE);
  void VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *TTE);
  void VisitSizeOfPackExpr(const SizeOfPackExpr *SOPE);
  void VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *ULE);
  void VisitAddrLabelExpr(const AddrLabelExpr *ALE);
  void VisitCXXTypeidExpr(const CXXTypeidExpr *CTE);
  void VisitConstantExpr(const ConstantExpr *CE);
  void VisitInitListExpr(const InitListExpr *ILE);
  void VisitGenericSelectionExpr(const GenericSelectionExpr *GSE);
  void VisitCXXUnresolvedConstructExpr(const CXXUnresolvedConstructExpr *UCE);
  void VisitCXXConstructExpr(const CXXConstructExpr *CE);
  void VisitExprWithCleanups(const ExprWithCleanups *EWC);
  void VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *BTE);
  void VisitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *MTE);
  void VisitCXXDependentScopeMemberExpr(const CXXDependentScopeMemberExpr *ME);

void VisitObjCEncodeExpr(const ObjCEncodeExpr *OEE);
  void VisitObjCMessageExpr(const ObjCMessageExpr *OME);
  void VisitObjCBoxedExpr(const ObjCBoxedExpr *OBE);
  void VisitObjCSelectorExpr(const ObjCSelectorExpr *OSE);
  void VisitObjCProtocolExpr(const ObjCProtocolExpr *OPE);
  void VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *OPRE);
  void VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *OSRE);
  void VisitObjCIvarRefExpr(const ObjCIvarRefExpr *OIRE);
  void VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *OBLE);

void VisitIntegerLiteral(const IntegerLiteral *IL);
  void VisitCharacterLiteral(const CharacterLiteral *CL);
  void VisitFixedPointLiteral(const FixedPointLiteral *FPL);
  void VisitFloatingLiteral(const FloatingLiteral *FL);
  void VisitStringLiteral(const StringLiteral *SL);
  void VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *BLE);

void VisitIfStmt(const IfStmt *IS);
  void VisitSwitchStmt(const SwitchStmt *SS);
  void VisitCaseStmt(const CaseStmt *CS);
  void VisitLabelStmt(const LabelStmt *LS);
  void VisitGotoStmt(const GotoStmt *GS);
  void VisitWhileStmt(const WhileStmt *WS);
  void VisitObjCAtCatchStmt(const ObjCAtCatchStmt *OACS);

void VisitNullTemplateArgument(const TemplateArgument &TA);
  void VisitTypeTemplateArgument(const TemplateArgument &TA);
  void VisitDeclarationTemplateArgument(const TemplateArgument &TA);
  void VisitNullPtrTemplateArgument(const TemplateArgument &TA);
  void VisitIntegralTemplateArgument(const TemplateArgument &TA);
  void VisitTemplateTemplateArgument(const TemplateArgument &TA);
  void VisitTemplateExpansionTemplateArgument(const TemplateArgument &TA);
  void VisitExpressionTemplateArgument(const TemplateArgument &TA);
  void VisitPackTemplateArgument(const TemplateArgument &TA);

void visitTextComment(const comments::TextComment *C,
                        const comments::FullComment *);
  void visitInlineCommandComment(const comments::InlineCommandComment *C,
                                 const comments::FullComment *);
  void visitHTMLStartTagComment(const comments::HTMLStartTagComment *C,
                                const comments::FullComment *);
  void visitHTMLEndTagComment(const comments::HTMLEndTagComment *C,
                              const comments::FullComment *);
  void visitBlockCommandComment(const comments::BlockCommandComment *C,
                                const comments::FullComment *);
  void visitParamCommandComment(const comments::ParamCommandComment *C,
                                const comments::FullComment *FC);
  void visitTParamCommandComment(const comments::TParamCommandComment *C,
                                 const comments::FullComment *FC);
  void visitVerbatimBlockComment(const comments::VerbatimBlockComment *C,
                                 const comments::FullComment *);
  void
  visitVerbatimBlockLineComment(const comments::VerbatimBlockLineComment *C,
                                const comments::FullComment *);
  void visitVerbatimLineComment(const comments::VerbatimLineComment *C,
                                const comments::FullComment *);
};

class JSONDumper : public ASTNodeTraverser<JSONDumper, JSONNodeDumper> {
  JSONNodeDumper NodeDumper;

template <typename SpecializationDecl>
  void writeTemplateDeclSpecialization(const SpecializationDecl *SD,
                                       bool DumpExplicitInst,
                                       bool DumpRefOnly) {
    bool DumpedAny = false;
    for (const auto *RedeclWithBadType : SD->redecls()) {
      // FIXME: The redecls() range sometimes has elements of a less-specific
      // type. (In particular, ClassTemplateSpecializationDecl::redecls() gives
      // us TagDecls, and should give CXXRecordDecls).
      const auto *Redecl = dyn_cast<SpecializationDecl>(RedeclWithBadType);
      if (!Redecl) {
        // Found the injected-class-name for a class template. This will be
        // dumped as part of its surrounding class so we don't need to dump it
        // here.
        assert(isa<CXXRecordDecl>(RedeclWithBadType) &&
               "expected an injected-class-name");
        continue;
      }

switch (Redecl->getTemplateSpecializationKind()) {
      case TSK_ExplicitInstantiationDeclaration:
      case TSK_ExplicitInstantiationDefinition:
        if (!DumpExplicitInst)
          break;
        LLVM_FALLTHROUGH;
      case TSK_Undeclared:
      case TSK_ImplicitInstantiation:
        if (DumpRefOnly)
          NodeDumper.AddChild([=] { NodeDumper.writeBareDeclRef(Redecl); });
        else
          Visit(Redecl);
        DumpedAny = true;
        break;
      case TSK_ExplicitSpecialization:
        break;
      }
    }

// Ensure we dump at least one decl for each specialization.
    if (!DumpedAny)
      NodeDumper.AddChild([=] { NodeDumper.writeBareDeclRef(SD); });
  }

template <typename TemplateDecl>
  void writeTemplateDecl(const TemplateDecl *TD, bool DumpExplicitInst) {
    // FIXME: it would be nice to dump template parameters and specializations
    // to their own named arrays rather than shoving them into the "inner"
    // array. However, template declarations are currently being handled at the
    // wrong "level" of the traversal hierarchy and so it is difficult to
    // achieve without losing information elsewhere.

dumpTemplateParameters(TD->getTemplateParameters());

Visit(TD->getTemplatedDecl());

for (const auto *Child : TD->specializations())
      writeTemplateDeclSpecialization(Child, DumpExplicitInst,
                                      !TD->isCanonicalDecl());
  }

public:
  JSONDumper(raw_ostream &OS, const SourceManager &SrcMgr, ASTContext &Ctx,
             const PrintingPolicy &PrintPolicy,
             const comments::CommandTraits *Traits)
      : NodeDumper(OS, SrcMgr, Ctx, PrintPolicy, Traits) {}

JSONNodeDumper &doGetNodeDelegate() { return NodeDumper; }

void VisitFunctionTemplateDecl(const FunctionTemplateDecl *FTD) {
    writeTemplateDecl(FTD, true);
  }
  void VisitClassTemplateDecl(const ClassTemplateDecl *CTD) {
    writeTemplateDecl(CTD, false);
  }
  void VisitVarTemplateDecl(const VarTemplateDecl *VTD) {
    writeTemplateDecl(VTD, false);
  }
};

} // namespace clang

#endif // LLVM_CLANG_AST_JSONNODEDUMPER_H

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