xref: /freebsd/contrib/llvm-project/clang/lib/AST/TextNodeDumper.cpp (revision 5def4c47d4bd90b209b9b4a4ba9faec15846d8fd) 
1 //===--- TextNodeDumper.cpp - Printing of AST nodes -----------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements AST dumping of components of individual AST nodes.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "clang/AST/TextNodeDumper.h"
14 #include "clang/AST/APValue.h"
15 #include "clang/AST/DeclFriend.h"
16 #include "clang/AST/DeclOpenMP.h"
17 #include "clang/AST/DeclTemplate.h"
18 #include "clang/AST/LocInfoType.h"
19 #include "clang/AST/Type.h"
20 #include "clang/Basic/Module.h"
21 #include "clang/Basic/SourceManager.h"
22 #include "clang/Basic/Specifiers.h"
23 #include "clang/Basic/TypeTraits.h"
24 
25 #include <algorithm>
26 #include <utility>
27 
28 using namespace clang;
29 
30 static void dumpPreviousDeclImpl(raw_ostream &OS, ...) {}
31 
32 template <typename T>
33 static void dumpPreviousDeclImpl(raw_ostream &OS, const Mergeable<T> *D) {
34   const T *First = D->getFirstDecl();
35   if (First != D)
36     OS << " first " << First;
37 }
38 
39 template <typename T>
40 static void dumpPreviousDeclImpl(raw_ostream &OS, const Redeclarable<T> *D) {
41   const T *Prev = D->getPreviousDecl();
42   if (Prev)
43     OS << " prev " << Prev;
44 }
45 
46 /// Dump the previous declaration in the redeclaration chain for a declaration,
47 /// if any.
48 static void dumpPreviousDecl(raw_ostream &OS, const Decl *D) {
49   switch (D->getKind()) {
50 #define DECL(DERIVED, BASE)                                                    \
51   case Decl::DERIVED:                                                          \
52     return dumpPreviousDeclImpl(OS, cast<DERIVED##Decl>(D));
53 #define ABSTRACT_DECL(DECL)
54 #include "clang/AST/DeclNodes.inc"
55   }
56   llvm_unreachable("Decl that isn't part of DeclNodes.inc!");
57 }
58 
59 TextNodeDumper::TextNodeDumper(raw_ostream &OS, const ASTContext &Context,
60                                bool ShowColors)
61     : TextTreeStructure(OS, ShowColors), OS(OS), ShowColors(ShowColors),
62       Context(&Context), SM(&Context.getSourceManager()),
63       PrintPolicy(Context.getPrintingPolicy()),
64       Traits(&Context.getCommentCommandTraits()) {}
65 
66 TextNodeDumper::TextNodeDumper(raw_ostream &OS, bool ShowColors)
67     : TextTreeStructure(OS, ShowColors), OS(OS), ShowColors(ShowColors) {}
68 
69 void TextNodeDumper::Visit(const comments::Comment *C,
70                            const comments::FullComment *FC) {
71   if (!C) {
72     ColorScope Color(OS, ShowColors, NullColor);
73     OS << "<<<NULL>>>";
74     return;
75   }
76 
77   {
78     ColorScope Color(OS, ShowColors, CommentColor);
79     OS << C->getCommentKindName();
80   }
81   dumpPointer(C);
82   dumpSourceRange(C->getSourceRange());
83 
84   ConstCommentVisitor<TextNodeDumper, void,
85                       const comments::FullComment *>::visit(C, FC);
86 }
87 
88 void TextNodeDumper::Visit(const Attr *A) {
89   {
90     ColorScope Color(OS, ShowColors, AttrColor);
91 
92     switch (A->getKind()) {
93 #define ATTR(X)                                                                \
94   case attr::X:                                                                \
95     OS << #X;                                                                  \
96     break;
97 #include "clang/Basic/AttrList.inc"
98     }
99     OS << "Attr";
100   }
101   dumpPointer(A);
102   dumpSourceRange(A->getRange());
103   if (A->isInherited())
104     OS << " Inherited";
105   if (A->isImplicit())
106     OS << " Implicit";
107 
108   ConstAttrVisitor<TextNodeDumper>::Visit(A);
109 }
110 
111 void TextNodeDumper::Visit(const TemplateArgument &TA, SourceRange R,
112                            const Decl *From, StringRef Label) {
113   OS << "TemplateArgument";
114   if (R.isValid())
115     dumpSourceRange(R);
116 
117   if (From)
118     dumpDeclRef(From, Label);
119 
120   ConstTemplateArgumentVisitor<TextNodeDumper>::Visit(TA);
121 }
122 
123 void TextNodeDumper::Visit(const Stmt *Node) {
124   if (!Node) {
125     ColorScope Color(OS, ShowColors, NullColor);
126     OS << "<<<NULL>>>";
127     return;
128   }
129   {
130     ColorScope Color(OS, ShowColors, StmtColor);
131     OS << Node->getStmtClassName();
132   }
133   dumpPointer(Node);
134   dumpSourceRange(Node->getSourceRange());
135 
136   if (const auto *E = dyn_cast<Expr>(Node)) {
137     dumpType(E->getType());
138 
139     if (E->containsErrors()) {
140       ColorScope Color(OS, ShowColors, ErrorsColor);
141       OS << " contains-errors";
142     }
143 
144     {
145       ColorScope Color(OS, ShowColors, ValueKindColor);
146       switch (E->getValueKind()) {
147       case VK_RValue:
148         break;
149       case VK_LValue:
150         OS << " lvalue";
151         break;
152       case VK_XValue:
153         OS << " xvalue";
154         break;
155       }
156     }
157 
158     {
159       ColorScope Color(OS, ShowColors, ObjectKindColor);
160       switch (E->getObjectKind()) {
161       case OK_Ordinary:
162         break;
163       case OK_BitField:
164         OS << " bitfield";
165         break;
166       case OK_ObjCProperty:
167         OS << " objcproperty";
168         break;
169       case OK_ObjCSubscript:
170         OS << " objcsubscript";
171         break;
172       case OK_VectorComponent:
173         OS << " vectorcomponent";
174         break;
175       case OK_MatrixComponent:
176         OS << " matrixcomponent";
177         break;
178       }
179     }
180   }
181 
182   ConstStmtVisitor<TextNodeDumper>::Visit(Node);
183 }
184 
185 void TextNodeDumper::Visit(const Type *T) {
186   if (!T) {
187     ColorScope Color(OS, ShowColors, NullColor);
188     OS << "<<<NULL>>>";
189     return;
190   }
191   if (isa<LocInfoType>(T)) {
192     {
193       ColorScope Color(OS, ShowColors, TypeColor);
194       OS << "LocInfo Type";
195     }
196     dumpPointer(T);
197     return;
198   }
199 
200   {
201     ColorScope Color(OS, ShowColors, TypeColor);
202     OS << T->getTypeClassName() << "Type";
203   }
204   dumpPointer(T);
205   OS << " ";
206   dumpBareType(QualType(T, 0), false);
207 
208   QualType SingleStepDesugar =
209       T->getLocallyUnqualifiedSingleStepDesugaredType();
210   if (SingleStepDesugar != QualType(T, 0))
211     OS << " sugar";
212 
213   if (T->containsErrors()) {
214     ColorScope Color(OS, ShowColors, ErrorsColor);
215     OS << " contains-errors";
216   }
217 
218   if (T->isDependentType())
219     OS << " dependent";
220   else if (T->isInstantiationDependentType())
221     OS << " instantiation_dependent";
222 
223   if (T->isVariablyModifiedType())
224     OS << " variably_modified";
225   if (T->containsUnexpandedParameterPack())
226     OS << " contains_unexpanded_pack";
227   if (T->isFromAST())
228     OS << " imported";
229 
230   TypeVisitor<TextNodeDumper>::Visit(T);
231 }
232 
233 void TextNodeDumper::Visit(QualType T) {
234   OS << "QualType";
235   dumpPointer(T.getAsOpaquePtr());
236   OS << " ";
237   dumpBareType(T, false);
238   OS << " " << T.split().Quals.getAsString();
239 }
240 
241 void TextNodeDumper::Visit(const Decl *D) {
242   if (!D) {
243     ColorScope Color(OS, ShowColors, NullColor);
244     OS << "<<<NULL>>>";
245     return;
246   }
247 
248   {
249     ColorScope Color(OS, ShowColors, DeclKindNameColor);
250     OS << D->getDeclKindName() << "Decl";
251   }
252   dumpPointer(D);
253   if (D->getLexicalDeclContext() != D->getDeclContext())
254     OS << " parent " << cast<Decl>(D->getDeclContext());
255   dumpPreviousDecl(OS, D);
256   dumpSourceRange(D->getSourceRange());
257   OS << ' ';
258   dumpLocation(D->getLocation());
259   if (D->isFromASTFile())
260     OS << " imported";
261   if (Module *M = D->getOwningModule())
262     OS << " in " << M->getFullModuleName();
263   if (auto *ND = dyn_cast<NamedDecl>(D))
264     for (Module *M : D->getASTContext().getModulesWithMergedDefinition(
265              const_cast<NamedDecl *>(ND)))
266       AddChild([=] { OS << "also in " << M->getFullModuleName(); });
267   if (const NamedDecl *ND = dyn_cast<NamedDecl>(D))
268     if (!ND->isUnconditionallyVisible())
269       OS << " hidden";
270   if (D->isImplicit())
271     OS << " implicit";
272 
273   if (D->isUsed())
274     OS << " used";
275   else if (D->isThisDeclarationReferenced())
276     OS << " referenced";
277 
278   if (D->isInvalidDecl())
279     OS << " invalid";
280   if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
281     if (FD->isConstexprSpecified())
282       OS << " constexpr";
283     if (FD->isConsteval())
284       OS << " consteval";
285   }
286 
287   if (!isa<FunctionDecl>(*D)) {
288     const auto *MD = dyn_cast<ObjCMethodDecl>(D);
289     if (!MD || !MD->isThisDeclarationADefinition()) {
290       const auto *DC = dyn_cast<DeclContext>(D);
291       if (DC && DC->hasExternalLexicalStorage()) {
292         ColorScope Color(OS, ShowColors, UndeserializedColor);
293         OS << " <undeserialized declarations>";
294       }
295     }
296   }
297 
298   ConstDeclVisitor<TextNodeDumper>::Visit(D);
299 }
300 
301 void TextNodeDumper::Visit(const CXXCtorInitializer *Init) {
302   OS << "CXXCtorInitializer";
303   if (Init->isAnyMemberInitializer()) {
304     OS << ' ';
305     dumpBareDeclRef(Init->getAnyMember());
306   } else if (Init->isBaseInitializer()) {
307     dumpType(QualType(Init->getBaseClass(), 0));
308   } else if (Init->isDelegatingInitializer()) {
309     dumpType(Init->getTypeSourceInfo()->getType());
310   } else {
311     llvm_unreachable("Unknown initializer type");
312   }
313 }
314 
315 void TextNodeDumper::Visit(const BlockDecl::Capture &C) {
316   OS << "capture";
317   if (C.isByRef())
318     OS << " byref";
319   if (C.isNested())
320     OS << " nested";
321   if (C.getVariable()) {
322     OS << ' ';
323     dumpBareDeclRef(C.getVariable());
324   }
325 }
326 
327 void TextNodeDumper::Visit(const OMPClause *C) {
328   if (!C) {
329     ColorScope Color(OS, ShowColors, NullColor);
330     OS << "<<<NULL>>> OMPClause";
331     return;
332   }
333   {
334     ColorScope Color(OS, ShowColors, AttrColor);
335     StringRef ClauseName(llvm::omp::getOpenMPClauseName(C->getClauseKind()));
336     OS << "OMP" << ClauseName.substr(/*Start=*/0, /*N=*/1).upper()
337        << ClauseName.drop_front() << "Clause";
338   }
339   dumpPointer(C);
340   dumpSourceRange(SourceRange(C->getBeginLoc(), C->getEndLoc()));
341   if (C->isImplicit())
342     OS << " <implicit>";
343 }
344 
345 void TextNodeDumper::Visit(const GenericSelectionExpr::ConstAssociation &A) {
346   const TypeSourceInfo *TSI = A.getTypeSourceInfo();
347   if (TSI) {
348     OS << "case ";
349     dumpType(TSI->getType());
350   } else {
351     OS << "default";
352   }
353 
354   if (A.isSelected())
355     OS << " selected";
356 }
357 
358 static double GetApproxValue(const llvm::APFloat &F) {
359   llvm::APFloat V = F;
360   bool ignored;
361   V.convert(llvm::APFloat::IEEEdouble(), llvm::APFloat::rmNearestTiesToEven,
362             &ignored);
363   return V.convertToDouble();
364 }
365 
366 /// True if the \p APValue \p Value can be folded onto the current line.
367 static bool isSimpleAPValue(const APValue &Value) {
368   switch (Value.getKind()) {
369   case APValue::None:
370   case APValue::Indeterminate:
371   case APValue::Int:
372   case APValue::Float:
373   case APValue::FixedPoint:
374   case APValue::ComplexInt:
375   case APValue::ComplexFloat:
376   case APValue::LValue:
377   case APValue::MemberPointer:
378   case APValue::AddrLabelDiff:
379     return true;
380   case APValue::Vector:
381   case APValue::Array:
382   case APValue::Struct:
383     return false;
384   case APValue::Union:
385     return isSimpleAPValue(Value.getUnionValue());
386   }
387   llvm_unreachable("unexpected APValue kind!");
388 }
389 
390 /// Dump the children of the \p APValue \p Value.
391 ///
392 /// \param[in] Value          The \p APValue to visit
393 /// \param[in] Ty             The \p QualType passed to \p Visit
394 ///
395 /// \param[in] IdxToChildFun  A function mapping an \p APValue and an index
396 ///                           to one of the child of the \p APValue
397 ///
398 /// \param[in] NumChildren    \p IdxToChildFun will be called on \p Value with
399 ///                           the indices in the range \p [0,NumChildren(
400 ///
401 /// \param[in] LabelSingular  The label to use on a line with a single child
402 /// \param[in] LabelPlurial   The label to use on a line with multiple children
403 void TextNodeDumper::dumpAPValueChildren(
404     const APValue &Value, QualType Ty,
405     const APValue &(*IdxToChildFun)(const APValue &, unsigned),
406     unsigned NumChildren, StringRef LabelSingular, StringRef LabelPlurial) {
407   // To save some vertical space we print up to MaxChildrenPerLine APValues
408   // considered to be simple (by isSimpleAPValue) on a single line.
409   constexpr unsigned MaxChildrenPerLine = 4;
410   unsigned I = 0;
411   while (I < NumChildren) {
412     unsigned J = I;
413     while (J < NumChildren) {
414       if (isSimpleAPValue(IdxToChildFun(Value, J)) &&
415           (J - I < MaxChildrenPerLine)) {
416         ++J;
417         continue;
418       }
419       break;
420     }
421 
422     J = std::max(I + 1, J);
423 
424     // Print [I,J) on a single line.
425     AddChild(J - I > 1 ? LabelPlurial : LabelSingular, [=]() {
426       for (unsigned X = I; X < J; ++X) {
427         Visit(IdxToChildFun(Value, X), Ty);
428         if (X + 1 != J)
429           OS << ", ";
430       }
431     });
432     I = J;
433   }
434 }
435 
436 void TextNodeDumper::Visit(const APValue &Value, QualType Ty) {
437   ColorScope Color(OS, ShowColors, ValueKindColor);
438   switch (Value.getKind()) {
439   case APValue::None:
440     OS << "None";
441     return;
442   case APValue::Indeterminate:
443     OS << "Indeterminate";
444     return;
445   case APValue::Int:
446     OS << "Int ";
447     {
448       ColorScope Color(OS, ShowColors, ValueColor);
449       OS << Value.getInt();
450     }
451     return;
452   case APValue::Float:
453     OS << "Float ";
454     {
455       ColorScope Color(OS, ShowColors, ValueColor);
456       OS << GetApproxValue(Value.getFloat());
457     }
458     return;
459   case APValue::FixedPoint:
460     OS << "FixedPoint ";
461     {
462       ColorScope Color(OS, ShowColors, ValueColor);
463       OS << Value.getFixedPoint();
464     }
465     return;
466   case APValue::Vector: {
467     unsigned VectorLength = Value.getVectorLength();
468     OS << "Vector length=" << VectorLength;
469 
470     dumpAPValueChildren(
471         Value, Ty,
472         [](const APValue &Value, unsigned Index) -> const APValue & {
473           return Value.getVectorElt(Index);
474         },
475         VectorLength, "element", "elements");
476     return;
477   }
478   case APValue::ComplexInt:
479     OS << "ComplexInt ";
480     {
481       ColorScope Color(OS, ShowColors, ValueColor);
482       OS << Value.getComplexIntReal() << " + " << Value.getComplexIntImag()
483          << 'i';
484     }
485     return;
486   case APValue::ComplexFloat:
487     OS << "ComplexFloat ";
488     {
489       ColorScope Color(OS, ShowColors, ValueColor);
490       OS << GetApproxValue(Value.getComplexFloatReal()) << " + "
491          << GetApproxValue(Value.getComplexFloatImag()) << 'i';
492     }
493     return;
494   case APValue::LValue:
495     (void)Context;
496     OS << "LValue <todo>";
497     return;
498   case APValue::Array: {
499     unsigned ArraySize = Value.getArraySize();
500     unsigned NumInitializedElements = Value.getArrayInitializedElts();
501     OS << "Array size=" << ArraySize;
502 
503     dumpAPValueChildren(
504         Value, Ty,
505         [](const APValue &Value, unsigned Index) -> const APValue & {
506           return Value.getArrayInitializedElt(Index);
507         },
508         NumInitializedElements, "element", "elements");
509 
510     if (Value.hasArrayFiller()) {
511       AddChild("filler", [=] {
512         {
513           ColorScope Color(OS, ShowColors, ValueColor);
514           OS << ArraySize - NumInitializedElements << " x ";
515         }
516         Visit(Value.getArrayFiller(), Ty);
517       });
518     }
519 
520     return;
521   }
522   case APValue::Struct: {
523     OS << "Struct";
524 
525     dumpAPValueChildren(
526         Value, Ty,
527         [](const APValue &Value, unsigned Index) -> const APValue & {
528           return Value.getStructBase(Index);
529         },
530         Value.getStructNumBases(), "base", "bases");
531 
532     dumpAPValueChildren(
533         Value, Ty,
534         [](const APValue &Value, unsigned Index) -> const APValue & {
535           return Value.getStructField(Index);
536         },
537         Value.getStructNumFields(), "field", "fields");
538 
539     return;
540   }
541   case APValue::Union: {
542     OS << "Union";
543     {
544       ColorScope Color(OS, ShowColors, ValueColor);
545       if (const FieldDecl *FD = Value.getUnionField())
546         OS << " ." << *cast<NamedDecl>(FD);
547     }
548     // If the union value is considered to be simple, fold it into the
549     // current line to save some vertical space.
550     const APValue &UnionValue = Value.getUnionValue();
551     if (isSimpleAPValue(UnionValue)) {
552       OS << ' ';
553       Visit(UnionValue, Ty);
554     } else {
555       AddChild([=] { Visit(UnionValue, Ty); });
556     }
557 
558     return;
559   }
560   case APValue::MemberPointer:
561     OS << "MemberPointer <todo>";
562     return;
563   case APValue::AddrLabelDiff:
564     OS << "AddrLabelDiff <todo>";
565     return;
566   }
567   llvm_unreachable("Unknown APValue kind!");
568 }
569 
570 void TextNodeDumper::dumpPointer(const void *Ptr) {
571   ColorScope Color(OS, ShowColors, AddressColor);
572   OS << ' ' << Ptr;
573 }
574 
575 void TextNodeDumper::dumpLocation(SourceLocation Loc) {
576   if (!SM)
577     return;
578 
579   ColorScope Color(OS, ShowColors, LocationColor);
580   SourceLocation SpellingLoc = SM->getSpellingLoc(Loc);
581 
582   // The general format we print out is filename:line:col, but we drop pieces
583   // that haven't changed since the last loc printed.
584   PresumedLoc PLoc = SM->getPresumedLoc(SpellingLoc);
585 
586   if (PLoc.isInvalid()) {
587     OS << "<invalid sloc>";
588     return;
589   }
590 
591   if (strcmp(PLoc.getFilename(), LastLocFilename) != 0) {
592     OS << PLoc.getFilename() << ':' << PLoc.getLine() << ':'
593        << PLoc.getColumn();
594     LastLocFilename = PLoc.getFilename();
595     LastLocLine = PLoc.getLine();
596   } else if (PLoc.getLine() != LastLocLine) {
597     OS << "line" << ':' << PLoc.getLine() << ':' << PLoc.getColumn();
598     LastLocLine = PLoc.getLine();
599   } else {
600     OS << "col" << ':' << PLoc.getColumn();
601   }
602 }
603 
604 void TextNodeDumper::dumpSourceRange(SourceRange R) {
605   // Can't translate locations if a SourceManager isn't available.
606   if (!SM)
607     return;
608 
609   OS << " <";
610   dumpLocation(R.getBegin());
611   if (R.getBegin() != R.getEnd()) {
612     OS << ", ";
613     dumpLocation(R.getEnd());
614   }
615   OS << ">";
616 
617   // <t2.c:123:421[blah], t2.c:412:321>
618 }
619 
620 void TextNodeDumper::dumpBareType(QualType T, bool Desugar) {
621   ColorScope Color(OS, ShowColors, TypeColor);
622 
623   SplitQualType T_split = T.split();
624   OS << "'" << QualType::getAsString(T_split, PrintPolicy) << "'";
625 
626   if (Desugar && !T.isNull()) {
627     // If the type is sugared, also dump a (shallow) desugared type.
628     SplitQualType D_split = T.getSplitDesugaredType();
629     if (T_split != D_split)
630       OS << ":'" << QualType::getAsString(D_split, PrintPolicy) << "'";
631   }
632 }
633 
634 void TextNodeDumper::dumpType(QualType T) {
635   OS << ' ';
636   dumpBareType(T);
637 }
638 
639 void TextNodeDumper::dumpBareDeclRef(const Decl *D) {
640   if (!D) {
641     ColorScope Color(OS, ShowColors, NullColor);
642     OS << "<<<NULL>>>";
643     return;
644   }
645 
646   {
647     ColorScope Color(OS, ShowColors, DeclKindNameColor);
648     OS << D->getDeclKindName();
649   }
650   dumpPointer(D);
651 
652   if (const NamedDecl *ND = dyn_cast<NamedDecl>(D)) {
653     ColorScope Color(OS, ShowColors, DeclNameColor);
654     OS << " '" << ND->getDeclName() << '\'';
655   }
656 
657   if (const ValueDecl *VD = dyn_cast<ValueDecl>(D))
658     dumpType(VD->getType());
659 }
660 
661 void TextNodeDumper::dumpName(const NamedDecl *ND) {
662   if (ND->getDeclName()) {
663     ColorScope Color(OS, ShowColors, DeclNameColor);
664     OS << ' ' << ND->getDeclName();
665   }
666 }
667 
668 void TextNodeDumper::dumpAccessSpecifier(AccessSpecifier AS) {
669   const auto AccessSpelling = getAccessSpelling(AS);
670   if (AccessSpelling.empty())
671     return;
672   OS << AccessSpelling;
673 }
674 
675 void TextNodeDumper::dumpCleanupObject(
676     const ExprWithCleanups::CleanupObject &C) {
677   if (auto *BD = C.dyn_cast<BlockDecl *>())
678     dumpDeclRef(BD, "cleanup");
679   else if (auto *CLE = C.dyn_cast<CompoundLiteralExpr *>())
680     AddChild([=] {
681       OS << "cleanup ";
682       {
683         ColorScope Color(OS, ShowColors, StmtColor);
684         OS << CLE->getStmtClassName();
685       }
686       dumpPointer(CLE);
687     });
688   else
689     llvm_unreachable("unexpected cleanup type");
690 }
691 
692 void TextNodeDumper::dumpDeclRef(const Decl *D, StringRef Label) {
693   if (!D)
694     return;
695 
696   AddChild([=] {
697     if (!Label.empty())
698       OS << Label << ' ';
699     dumpBareDeclRef(D);
700   });
701 }
702 
703 const char *TextNodeDumper::getCommandName(unsigned CommandID) {
704   if (Traits)
705     return Traits->getCommandInfo(CommandID)->Name;
706   const comments::CommandInfo *Info =
707       comments::CommandTraits::getBuiltinCommandInfo(CommandID);
708   if (Info)
709     return Info->Name;
710   return "<not a builtin command>";
711 }
712 
713 void TextNodeDumper::printFPOptions(FPOptionsOverride FPO) {
714 #define OPTION(NAME, TYPE, WIDTH, PREVIOUS)                                    \
715   if (FPO.has##NAME##Override())                                               \
716     OS << " " #NAME "=" << FPO.get##NAME##Override();
717 #include "clang/Basic/FPOptions.def"
718 }
719 
720 void TextNodeDumper::visitTextComment(const comments::TextComment *C,
721                                       const comments::FullComment *) {
722   OS << " Text=\"" << C->getText() << "\"";
723 }
724 
725 void TextNodeDumper::visitInlineCommandComment(
726     const comments::InlineCommandComment *C, const comments::FullComment *) {
727   OS << " Name=\"" << getCommandName(C->getCommandID()) << "\"";
728   switch (C->getRenderKind()) {
729   case comments::InlineCommandComment::RenderNormal:
730     OS << " RenderNormal";
731     break;
732   case comments::InlineCommandComment::RenderBold:
733     OS << " RenderBold";
734     break;
735   case comments::InlineCommandComment::RenderMonospaced:
736     OS << " RenderMonospaced";
737     break;
738   case comments::InlineCommandComment::RenderEmphasized:
739     OS << " RenderEmphasized";
740     break;
741   case comments::InlineCommandComment::RenderAnchor:
742     OS << " RenderAnchor";
743     break;
744   }
745 
746   for (unsigned i = 0, e = C->getNumArgs(); i != e; ++i)
747     OS << " Arg[" << i << "]=\"" << C->getArgText(i) << "\"";
748 }
749 
750 void TextNodeDumper::visitHTMLStartTagComment(
751     const comments::HTMLStartTagComment *C, const comments::FullComment *) {
752   OS << " Name=\"" << C->getTagName() << "\"";
753   if (C->getNumAttrs() != 0) {
754     OS << " Attrs: ";
755     for (unsigned i = 0, e = C->getNumAttrs(); i != e; ++i) {
756       const comments::HTMLStartTagComment::Attribute &Attr = C->getAttr(i);
757       OS << " \"" << Attr.Name << "=\"" << Attr.Value << "\"";
758     }
759   }
760   if (C->isSelfClosing())
761     OS << " SelfClosing";
762 }
763 
764 void TextNodeDumper::visitHTMLEndTagComment(
765     const comments::HTMLEndTagComment *C, const comments::FullComment *) {
766   OS << " Name=\"" << C->getTagName() << "\"";
767 }
768 
769 void TextNodeDumper::visitBlockCommandComment(
770     const comments::BlockCommandComment *C, const comments::FullComment *) {
771   OS << " Name=\"" << getCommandName(C->getCommandID()) << "\"";
772   for (unsigned i = 0, e = C->getNumArgs(); i != e; ++i)
773     OS << " Arg[" << i << "]=\"" << C->getArgText(i) << "\"";
774 }
775 
776 void TextNodeDumper::visitParamCommandComment(
777     const comments::ParamCommandComment *C, const comments::FullComment *FC) {
778   OS << " "
779      << comments::ParamCommandComment::getDirectionAsString(C->getDirection());
780 
781   if (C->isDirectionExplicit())
782     OS << " explicitly";
783   else
784     OS << " implicitly";
785 
786   if (C->hasParamName()) {
787     if (C->isParamIndexValid())
788       OS << " Param=\"" << C->getParamName(FC) << "\"";
789     else
790       OS << " Param=\"" << C->getParamNameAsWritten() << "\"";
791   }
792 
793   if (C->isParamIndexValid() && !C->isVarArgParam())
794     OS << " ParamIndex=" << C->getParamIndex();
795 }
796 
797 void TextNodeDumper::visitTParamCommandComment(
798     const comments::TParamCommandComment *C, const comments::FullComment *FC) {
799   if (C->hasParamName()) {
800     if (C->isPositionValid())
801       OS << " Param=\"" << C->getParamName(FC) << "\"";
802     else
803       OS << " Param=\"" << C->getParamNameAsWritten() << "\"";
804   }
805 
806   if (C->isPositionValid()) {
807     OS << " Position=<";
808     for (unsigned i = 0, e = C->getDepth(); i != e; ++i) {
809       OS << C->getIndex(i);
810       if (i != e - 1)
811         OS << ", ";
812     }
813     OS << ">";
814   }
815 }
816 
817 void TextNodeDumper::visitVerbatimBlockComment(
818     const comments::VerbatimBlockComment *C, const comments::FullComment *) {
819   OS << " Name=\"" << getCommandName(C->getCommandID())
820      << "\""
821         " CloseName=\""
822      << C->getCloseName() << "\"";
823 }
824 
825 void TextNodeDumper::visitVerbatimBlockLineComment(
826     const comments::VerbatimBlockLineComment *C,
827     const comments::FullComment *) {
828   OS << " Text=\"" << C->getText() << "\"";
829 }
830 
831 void TextNodeDumper::visitVerbatimLineComment(
832     const comments::VerbatimLineComment *C, const comments::FullComment *) {
833   OS << " Text=\"" << C->getText() << "\"";
834 }
835 
836 void TextNodeDumper::VisitNullTemplateArgument(const TemplateArgument &) {
837   OS << " null";
838 }
839 
840 void TextNodeDumper::VisitTypeTemplateArgument(const TemplateArgument &TA) {
841   OS << " type";
842   dumpType(TA.getAsType());
843 }
844 
845 void TextNodeDumper::VisitDeclarationTemplateArgument(
846     const TemplateArgument &TA) {
847   OS << " decl";
848   dumpDeclRef(TA.getAsDecl());
849 }
850 
851 void TextNodeDumper::VisitNullPtrTemplateArgument(const TemplateArgument &) {
852   OS << " nullptr";
853 }
854 
855 void TextNodeDumper::VisitIntegralTemplateArgument(const TemplateArgument &TA) {
856   OS << " integral " << TA.getAsIntegral();
857 }
858 
859 void TextNodeDumper::VisitTemplateTemplateArgument(const TemplateArgument &TA) {
860   OS << " template ";
861   TA.getAsTemplate().dump(OS);
862 }
863 
864 void TextNodeDumper::VisitTemplateExpansionTemplateArgument(
865     const TemplateArgument &TA) {
866   OS << " template expansion ";
867   TA.getAsTemplateOrTemplatePattern().dump(OS);
868 }
869 
870 void TextNodeDumper::VisitExpressionTemplateArgument(const TemplateArgument &) {
871   OS << " expr";
872 }
873 
874 void TextNodeDumper::VisitPackTemplateArgument(const TemplateArgument &) {
875   OS << " pack";
876 }
877 
878 static void dumpBasePath(raw_ostream &OS, const CastExpr *Node) {
879   if (Node->path_empty())
880     return;
881 
882   OS << " (";
883   bool First = true;
884   for (CastExpr::path_const_iterator I = Node->path_begin(),
885                                      E = Node->path_end();
886        I != E; ++I) {
887     const CXXBaseSpecifier *Base = *I;
888     if (!First)
889       OS << " -> ";
890 
891     const auto *RD =
892         cast<CXXRecordDecl>(Base->getType()->castAs<RecordType>()->getDecl());
893 
894     if (Base->isVirtual())
895       OS << "virtual ";
896     OS << RD->getName();
897     First = false;
898   }
899 
900   OS << ')';
901 }
902 
903 void TextNodeDumper::VisitIfStmt(const IfStmt *Node) {
904   if (Node->hasInitStorage())
905     OS << " has_init";
906   if (Node->hasVarStorage())
907     OS << " has_var";
908   if (Node->hasElseStorage())
909     OS << " has_else";
910 }
911 
912 void TextNodeDumper::VisitSwitchStmt(const SwitchStmt *Node) {
913   if (Node->hasInitStorage())
914     OS << " has_init";
915   if (Node->hasVarStorage())
916     OS << " has_var";
917 }
918 
919 void TextNodeDumper::VisitWhileStmt(const WhileStmt *Node) {
920   if (Node->hasVarStorage())
921     OS << " has_var";
922 }
923 
924 void TextNodeDumper::VisitLabelStmt(const LabelStmt *Node) {
925   OS << " '" << Node->getName() << "'";
926 }
927 
928 void TextNodeDumper::VisitGotoStmt(const GotoStmt *Node) {
929   OS << " '" << Node->getLabel()->getName() << "'";
930   dumpPointer(Node->getLabel());
931 }
932 
933 void TextNodeDumper::VisitCaseStmt(const CaseStmt *Node) {
934   if (Node->caseStmtIsGNURange())
935     OS << " gnu_range";
936 }
937 
938 void TextNodeDumper::VisitConstantExpr(const ConstantExpr *Node) {
939   if (Node->hasAPValueResult())
940     AddChild("value",
941              [=] { Visit(Node->getAPValueResult(), Node->getType()); });
942 }
943 
944 void TextNodeDumper::VisitCallExpr(const CallExpr *Node) {
945   if (Node->usesADL())
946     OS << " adl";
947   if (Node->hasStoredFPFeatures())
948     printFPOptions(Node->getFPFeatures());
949 }
950 
951 void TextNodeDumper::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *Node) {
952   const char *OperatorSpelling = clang::getOperatorSpelling(Node->getOperator());
953   if (OperatorSpelling)
954     OS << " '" << OperatorSpelling << "'";
955 
956   VisitCallExpr(Node);
957 }
958 
959 void TextNodeDumper::VisitCastExpr(const CastExpr *Node) {
960   OS << " <";
961   {
962     ColorScope Color(OS, ShowColors, CastColor);
963     OS << Node->getCastKindName();
964   }
965   dumpBasePath(OS, Node);
966   OS << ">";
967   if (Node->hasStoredFPFeatures())
968     printFPOptions(Node->getFPFeatures());
969 }
970 
971 void TextNodeDumper::VisitImplicitCastExpr(const ImplicitCastExpr *Node) {
972   VisitCastExpr(Node);
973   if (Node->isPartOfExplicitCast())
974     OS << " part_of_explicit_cast";
975 }
976 
977 void TextNodeDumper::VisitDeclRefExpr(const DeclRefExpr *Node) {
978   OS << " ";
979   dumpBareDeclRef(Node->getDecl());
980   if (Node->getDecl() != Node->getFoundDecl()) {
981     OS << " (";
982     dumpBareDeclRef(Node->getFoundDecl());
983     OS << ")";
984   }
985   switch (Node->isNonOdrUse()) {
986   case NOUR_None: break;
987   case NOUR_Unevaluated: OS << " non_odr_use_unevaluated"; break;
988   case NOUR_Constant: OS << " non_odr_use_constant"; break;
989   case NOUR_Discarded: OS << " non_odr_use_discarded"; break;
990   }
991 }
992 
993 void TextNodeDumper::VisitUnresolvedLookupExpr(
994     const UnresolvedLookupExpr *Node) {
995   OS << " (";
996   if (!Node->requiresADL())
997     OS << "no ";
998   OS << "ADL) = '" << Node->getName() << '\'';
999 
1000   UnresolvedLookupExpr::decls_iterator I = Node->decls_begin(),
1001                                        E = Node->decls_end();
1002   if (I == E)
1003     OS << " empty";
1004   for (; I != E; ++I)
1005     dumpPointer(*I);
1006 }
1007 
1008 void TextNodeDumper::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *Node) {
1009   {
1010     ColorScope Color(OS, ShowColors, DeclKindNameColor);
1011     OS << " " << Node->getDecl()->getDeclKindName() << "Decl";
1012   }
1013   OS << "='" << *Node->getDecl() << "'";
1014   dumpPointer(Node->getDecl());
1015   if (Node->isFreeIvar())
1016     OS << " isFreeIvar";
1017 }
1018 
1019 void TextNodeDumper::VisitPredefinedExpr(const PredefinedExpr *Node) {
1020   OS << " " << PredefinedExpr::getIdentKindName(Node->getIdentKind());
1021 }
1022 
1023 void TextNodeDumper::VisitCharacterLiteral(const CharacterLiteral *Node) {
1024   ColorScope Color(OS, ShowColors, ValueColor);
1025   OS << " " << Node->getValue();
1026 }
1027 
1028 void TextNodeDumper::VisitIntegerLiteral(const IntegerLiteral *Node) {
1029   bool isSigned = Node->getType()->isSignedIntegerType();
1030   ColorScope Color(OS, ShowColors, ValueColor);
1031   OS << " " << Node->getValue().toString(10, isSigned);
1032 }
1033 
1034 void TextNodeDumper::VisitFixedPointLiteral(const FixedPointLiteral *Node) {
1035   ColorScope Color(OS, ShowColors, ValueColor);
1036   OS << " " << Node->getValueAsString(/*Radix=*/10);
1037 }
1038 
1039 void TextNodeDumper::VisitFloatingLiteral(const FloatingLiteral *Node) {
1040   ColorScope Color(OS, ShowColors, ValueColor);
1041   OS << " " << Node->getValueAsApproximateDouble();
1042 }
1043 
1044 void TextNodeDumper::VisitStringLiteral(const StringLiteral *Str) {
1045   ColorScope Color(OS, ShowColors, ValueColor);
1046   OS << " ";
1047   Str->outputString(OS);
1048 }
1049 
1050 void TextNodeDumper::VisitInitListExpr(const InitListExpr *ILE) {
1051   if (auto *Field = ILE->getInitializedFieldInUnion()) {
1052     OS << " field ";
1053     dumpBareDeclRef(Field);
1054   }
1055 }
1056 
1057 void TextNodeDumper::VisitGenericSelectionExpr(const GenericSelectionExpr *E) {
1058   if (E->isResultDependent())
1059     OS << " result_dependent";
1060 }
1061 
1062 void TextNodeDumper::VisitUnaryOperator(const UnaryOperator *Node) {
1063   OS << " " << (Node->isPostfix() ? "postfix" : "prefix") << " '"
1064      << UnaryOperator::getOpcodeStr(Node->getOpcode()) << "'";
1065   if (!Node->canOverflow())
1066     OS << " cannot overflow";
1067   if (Node->hasStoredFPFeatures())
1068     printFPOptions(Node->getStoredFPFeatures());
1069 }
1070 
1071 void TextNodeDumper::VisitUnaryExprOrTypeTraitExpr(
1072     const UnaryExprOrTypeTraitExpr *Node) {
1073   OS << " " << getTraitSpelling(Node->getKind());
1074 
1075   if (Node->isArgumentType())
1076     dumpType(Node->getArgumentType());
1077 }
1078 
1079 void TextNodeDumper::VisitMemberExpr(const MemberExpr *Node) {
1080   OS << " " << (Node->isArrow() ? "->" : ".") << *Node->getMemberDecl();
1081   dumpPointer(Node->getMemberDecl());
1082   switch (Node->isNonOdrUse()) {
1083   case NOUR_None: break;
1084   case NOUR_Unevaluated: OS << " non_odr_use_unevaluated"; break;
1085   case NOUR_Constant: OS << " non_odr_use_constant"; break;
1086   case NOUR_Discarded: OS << " non_odr_use_discarded"; break;
1087   }
1088 }
1089 
1090 void TextNodeDumper::VisitExtVectorElementExpr(
1091     const ExtVectorElementExpr *Node) {
1092   OS << " " << Node->getAccessor().getNameStart();
1093 }
1094 
1095 void TextNodeDumper::VisitBinaryOperator(const BinaryOperator *Node) {
1096   OS << " '" << BinaryOperator::getOpcodeStr(Node->getOpcode()) << "'";
1097   if (Node->hasStoredFPFeatures())
1098     printFPOptions(Node->getStoredFPFeatures());
1099 }
1100 
1101 void TextNodeDumper::VisitCompoundAssignOperator(
1102     const CompoundAssignOperator *Node) {
1103   OS << " '" << BinaryOperator::getOpcodeStr(Node->getOpcode())
1104      << "' ComputeLHSTy=";
1105   dumpBareType(Node->getComputationLHSType());
1106   OS << " ComputeResultTy=";
1107   dumpBareType(Node->getComputationResultType());
1108   if (Node->hasStoredFPFeatures())
1109     printFPOptions(Node->getStoredFPFeatures());
1110 }
1111 
1112 void TextNodeDumper::VisitAddrLabelExpr(const AddrLabelExpr *Node) {
1113   OS << " " << Node->getLabel()->getName();
1114   dumpPointer(Node->getLabel());
1115 }
1116 
1117 void TextNodeDumper::VisitCXXNamedCastExpr(const CXXNamedCastExpr *Node) {
1118   OS << " " << Node->getCastName() << "<"
1119      << Node->getTypeAsWritten().getAsString() << ">"
1120      << " <" << Node->getCastKindName();
1121   dumpBasePath(OS, Node);
1122   OS << ">";
1123 }
1124 
1125 void TextNodeDumper::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *Node) {
1126   OS << " " << (Node->getValue() ? "true" : "false");
1127 }
1128 
1129 void TextNodeDumper::VisitCXXThisExpr(const CXXThisExpr *Node) {
1130   if (Node->isImplicit())
1131     OS << " implicit";
1132   OS << " this";
1133 }
1134 
1135 void TextNodeDumper::VisitCXXFunctionalCastExpr(
1136     const CXXFunctionalCastExpr *Node) {
1137   OS << " functional cast to " << Node->getTypeAsWritten().getAsString() << " <"
1138      << Node->getCastKindName() << ">";
1139   if (Node->hasStoredFPFeatures())
1140     printFPOptions(Node->getFPFeatures());
1141 }
1142 
1143 void TextNodeDumper::VisitCXXStaticCastExpr(const CXXStaticCastExpr *Node) {
1144   VisitCXXNamedCastExpr(Node);
1145   if (Node->hasStoredFPFeatures())
1146     printFPOptions(Node->getFPFeatures());
1147 }
1148 
1149 void TextNodeDumper::VisitCXXUnresolvedConstructExpr(
1150     const CXXUnresolvedConstructExpr *Node) {
1151   dumpType(Node->getTypeAsWritten());
1152   if (Node->isListInitialization())
1153     OS << " list";
1154 }
1155 
1156 void TextNodeDumper::VisitCXXConstructExpr(const CXXConstructExpr *Node) {
1157   CXXConstructorDecl *Ctor = Node->getConstructor();
1158   dumpType(Ctor->getType());
1159   if (Node->isElidable())
1160     OS << " elidable";
1161   if (Node->isListInitialization())
1162     OS << " list";
1163   if (Node->isStdInitListInitialization())
1164     OS << " std::initializer_list";
1165   if (Node->requiresZeroInitialization())
1166     OS << " zeroing";
1167 }
1168 
1169 void TextNodeDumper::VisitCXXBindTemporaryExpr(
1170     const CXXBindTemporaryExpr *Node) {
1171   OS << " (CXXTemporary";
1172   dumpPointer(Node);
1173   OS << ")";
1174 }
1175 
1176 void TextNodeDumper::VisitCXXNewExpr(const CXXNewExpr *Node) {
1177   if (Node->isGlobalNew())
1178     OS << " global";
1179   if (Node->isArray())
1180     OS << " array";
1181   if (Node->getOperatorNew()) {
1182     OS << ' ';
1183     dumpBareDeclRef(Node->getOperatorNew());
1184   }
1185   // We could dump the deallocation function used in case of error, but it's
1186   // usually not that interesting.
1187 }
1188 
1189 void TextNodeDumper::VisitCXXDeleteExpr(const CXXDeleteExpr *Node) {
1190   if (Node->isGlobalDelete())
1191     OS << " global";
1192   if (Node->isArrayForm())
1193     OS << " array";
1194   if (Node->getOperatorDelete()) {
1195     OS << ' ';
1196     dumpBareDeclRef(Node->getOperatorDelete());
1197   }
1198 }
1199 
1200 void TextNodeDumper::VisitTypeTraitExpr(const TypeTraitExpr *Node) {
1201   OS << " " << getTraitSpelling(Node->getTrait());
1202 }
1203 
1204 void TextNodeDumper::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *Node) {
1205   OS << " " << getTraitSpelling(Node->getTrait());
1206 }
1207 
1208 void TextNodeDumper::VisitExpressionTraitExpr(const ExpressionTraitExpr *Node) {
1209   OS << " " << getTraitSpelling(Node->getTrait());
1210 }
1211 
1212 void TextNodeDumper::VisitMaterializeTemporaryExpr(
1213     const MaterializeTemporaryExpr *Node) {
1214   if (const ValueDecl *VD = Node->getExtendingDecl()) {
1215     OS << " extended by ";
1216     dumpBareDeclRef(VD);
1217   }
1218 }
1219 
1220 void TextNodeDumper::VisitExprWithCleanups(const ExprWithCleanups *Node) {
1221   for (unsigned i = 0, e = Node->getNumObjects(); i != e; ++i)
1222     dumpCleanupObject(Node->getObject(i));
1223 }
1224 
1225 void TextNodeDumper::VisitSizeOfPackExpr(const SizeOfPackExpr *Node) {
1226   dumpPointer(Node->getPack());
1227   dumpName(Node->getPack());
1228 }
1229 
1230 void TextNodeDumper::VisitCXXDependentScopeMemberExpr(
1231     const CXXDependentScopeMemberExpr *Node) {
1232   OS << " " << (Node->isArrow() ? "->" : ".") << Node->getMember();
1233 }
1234 
1235 void TextNodeDumper::VisitObjCMessageExpr(const ObjCMessageExpr *Node) {
1236   OS << " selector=";
1237   Node->getSelector().print(OS);
1238   switch (Node->getReceiverKind()) {
1239   case ObjCMessageExpr::Instance:
1240     break;
1241 
1242   case ObjCMessageExpr::Class:
1243     OS << " class=";
1244     dumpBareType(Node->getClassReceiver());
1245     break;
1246 
1247   case ObjCMessageExpr::SuperInstance:
1248     OS << " super (instance)";
1249     break;
1250 
1251   case ObjCMessageExpr::SuperClass:
1252     OS << " super (class)";
1253     break;
1254   }
1255 }
1256 
1257 void TextNodeDumper::VisitObjCBoxedExpr(const ObjCBoxedExpr *Node) {
1258   if (auto *BoxingMethod = Node->getBoxingMethod()) {
1259     OS << " selector=";
1260     BoxingMethod->getSelector().print(OS);
1261   }
1262 }
1263 
1264 void TextNodeDumper::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *Node) {
1265   if (!Node->getCatchParamDecl())
1266     OS << " catch all";
1267 }
1268 
1269 void TextNodeDumper::VisitObjCEncodeExpr(const ObjCEncodeExpr *Node) {
1270   dumpType(Node->getEncodedType());
1271 }
1272 
1273 void TextNodeDumper::VisitObjCSelectorExpr(const ObjCSelectorExpr *Node) {
1274   OS << " ";
1275   Node->getSelector().print(OS);
1276 }
1277 
1278 void TextNodeDumper::VisitObjCProtocolExpr(const ObjCProtocolExpr *Node) {
1279   OS << ' ' << *Node->getProtocol();
1280 }
1281 
1282 void TextNodeDumper::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *Node) {
1283   if (Node->isImplicitProperty()) {
1284     OS << " Kind=MethodRef Getter=\"";
1285     if (Node->getImplicitPropertyGetter())
1286       Node->getImplicitPropertyGetter()->getSelector().print(OS);
1287     else
1288       OS << "(null)";
1289 
1290     OS << "\" Setter=\"";
1291     if (ObjCMethodDecl *Setter = Node->getImplicitPropertySetter())
1292       Setter->getSelector().print(OS);
1293     else
1294       OS << "(null)";
1295     OS << "\"";
1296   } else {
1297     OS << " Kind=PropertyRef Property=\"" << *Node->getExplicitProperty()
1298        << '"';
1299   }
1300 
1301   if (Node->isSuperReceiver())
1302     OS << " super";
1303 
1304   OS << " Messaging=";
1305   if (Node->isMessagingGetter() && Node->isMessagingSetter())
1306     OS << "Getter&Setter";
1307   else if (Node->isMessagingGetter())
1308     OS << "Getter";
1309   else if (Node->isMessagingSetter())
1310     OS << "Setter";
1311 }
1312 
1313 void TextNodeDumper::VisitObjCSubscriptRefExpr(
1314     const ObjCSubscriptRefExpr *Node) {
1315   if (Node->isArraySubscriptRefExpr())
1316     OS << " Kind=ArraySubscript GetterForArray=\"";
1317   else
1318     OS << " Kind=DictionarySubscript GetterForDictionary=\"";
1319   if (Node->getAtIndexMethodDecl())
1320     Node->getAtIndexMethodDecl()->getSelector().print(OS);
1321   else
1322     OS << "(null)";
1323 
1324   if (Node->isArraySubscriptRefExpr())
1325     OS << "\" SetterForArray=\"";
1326   else
1327     OS << "\" SetterForDictionary=\"";
1328   if (Node->setAtIndexMethodDecl())
1329     Node->setAtIndexMethodDecl()->getSelector().print(OS);
1330   else
1331     OS << "(null)";
1332 }
1333 
1334 void TextNodeDumper::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *Node) {
1335   OS << " " << (Node->getValue() ? "__objc_yes" : "__objc_no");
1336 }
1337 
1338 void TextNodeDumper::VisitOMPIteratorExpr(const OMPIteratorExpr *Node) {
1339   OS << " ";
1340   for (unsigned I = 0, E = Node->numOfIterators(); I < E; ++I) {
1341     Visit(Node->getIteratorDecl(I));
1342     OS << " = ";
1343     const OMPIteratorExpr::IteratorRange Range = Node->getIteratorRange(I);
1344     OS << " begin ";
1345     Visit(Range.Begin);
1346     OS << " end ";
1347     Visit(Range.End);
1348     if (Range.Step) {
1349       OS << " step ";
1350       Visit(Range.Step);
1351     }
1352   }
1353 }
1354 
1355 void TextNodeDumper::VisitConceptSpecializationExpr(
1356     const ConceptSpecializationExpr *Node) {
1357   OS << " ";
1358   dumpBareDeclRef(Node->getFoundDecl());
1359 }
1360 
1361 void TextNodeDumper::VisitRValueReferenceType(const ReferenceType *T) {
1362   if (T->isSpelledAsLValue())
1363     OS << " written as lvalue reference";
1364 }
1365 
1366 void TextNodeDumper::VisitArrayType(const ArrayType *T) {
1367   switch (T->getSizeModifier()) {
1368   case ArrayType::Normal:
1369     break;
1370   case ArrayType::Static:
1371     OS << " static";
1372     break;
1373   case ArrayType::Star:
1374     OS << " *";
1375     break;
1376   }
1377   OS << " " << T->getIndexTypeQualifiers().getAsString();
1378 }
1379 
1380 void TextNodeDumper::VisitConstantArrayType(const ConstantArrayType *T) {
1381   OS << " " << T->getSize();
1382   VisitArrayType(T);
1383 }
1384 
1385 void TextNodeDumper::VisitVariableArrayType(const VariableArrayType *T) {
1386   OS << " ";
1387   dumpSourceRange(T->getBracketsRange());
1388   VisitArrayType(T);
1389 }
1390 
1391 void TextNodeDumper::VisitDependentSizedArrayType(
1392     const DependentSizedArrayType *T) {
1393   VisitArrayType(T);
1394   OS << " ";
1395   dumpSourceRange(T->getBracketsRange());
1396 }
1397 
1398 void TextNodeDumper::VisitDependentSizedExtVectorType(
1399     const DependentSizedExtVectorType *T) {
1400   OS << " ";
1401   dumpLocation(T->getAttributeLoc());
1402 }
1403 
1404 void TextNodeDumper::VisitVectorType(const VectorType *T) {
1405   switch (T->getVectorKind()) {
1406   case VectorType::GenericVector:
1407     break;
1408   case VectorType::AltiVecVector:
1409     OS << " altivec";
1410     break;
1411   case VectorType::AltiVecPixel:
1412     OS << " altivec pixel";
1413     break;
1414   case VectorType::AltiVecBool:
1415     OS << " altivec bool";
1416     break;
1417   case VectorType::NeonVector:
1418     OS << " neon";
1419     break;
1420   case VectorType::NeonPolyVector:
1421     OS << " neon poly";
1422     break;
1423   case VectorType::SveFixedLengthDataVector:
1424     OS << " fixed-length sve data vector";
1425     break;
1426   case VectorType::SveFixedLengthPredicateVector:
1427     OS << " fixed-length sve predicate vector";
1428     break;
1429   }
1430   OS << " " << T->getNumElements();
1431 }
1432 
1433 void TextNodeDumper::VisitFunctionType(const FunctionType *T) {
1434   auto EI = T->getExtInfo();
1435   if (EI.getNoReturn())
1436     OS << " noreturn";
1437   if (EI.getProducesResult())
1438     OS << " produces_result";
1439   if (EI.getHasRegParm())
1440     OS << " regparm " << EI.getRegParm();
1441   OS << " " << FunctionType::getNameForCallConv(EI.getCC());
1442 }
1443 
1444 void TextNodeDumper::VisitFunctionProtoType(const FunctionProtoType *T) {
1445   auto EPI = T->getExtProtoInfo();
1446   if (EPI.HasTrailingReturn)
1447     OS << " trailing_return";
1448   if (T->isConst())
1449     OS << " const";
1450   if (T->isVolatile())
1451     OS << " volatile";
1452   if (T->isRestrict())
1453     OS << " restrict";
1454   if (T->getExtProtoInfo().Variadic)
1455     OS << " variadic";
1456   switch (EPI.RefQualifier) {
1457   case RQ_None:
1458     break;
1459   case RQ_LValue:
1460     OS << " &";
1461     break;
1462   case RQ_RValue:
1463     OS << " &&";
1464     break;
1465   }
1466   // FIXME: Exception specification.
1467   // FIXME: Consumed parameters.
1468   VisitFunctionType(T);
1469 }
1470 
1471 void TextNodeDumper::VisitUnresolvedUsingType(const UnresolvedUsingType *T) {
1472   dumpDeclRef(T->getDecl());
1473 }
1474 
1475 void TextNodeDumper::VisitTypedefType(const TypedefType *T) {
1476   dumpDeclRef(T->getDecl());
1477 }
1478 
1479 void TextNodeDumper::VisitUnaryTransformType(const UnaryTransformType *T) {
1480   switch (T->getUTTKind()) {
1481   case UnaryTransformType::EnumUnderlyingType:
1482     OS << " underlying_type";
1483     break;
1484   }
1485 }
1486 
1487 void TextNodeDumper::VisitTagType(const TagType *T) {
1488   dumpDeclRef(T->getDecl());
1489 }
1490 
1491 void TextNodeDumper::VisitTemplateTypeParmType(const TemplateTypeParmType *T) {
1492   OS << " depth " << T->getDepth() << " index " << T->getIndex();
1493   if (T->isParameterPack())
1494     OS << " pack";
1495   dumpDeclRef(T->getDecl());
1496 }
1497 
1498 void TextNodeDumper::VisitAutoType(const AutoType *T) {
1499   if (T->isDecltypeAuto())
1500     OS << " decltype(auto)";
1501   if (!T->isDeduced())
1502     OS << " undeduced";
1503   if (T->isConstrained()) {
1504     dumpDeclRef(T->getTypeConstraintConcept());
1505     for (const auto &Arg : T->getTypeConstraintArguments())
1506       VisitTemplateArgument(Arg);
1507   }
1508 }
1509 
1510 void TextNodeDumper::VisitTemplateSpecializationType(
1511     const TemplateSpecializationType *T) {
1512   if (T->isTypeAlias())
1513     OS << " alias";
1514   OS << " ";
1515   T->getTemplateName().dump(OS);
1516 }
1517 
1518 void TextNodeDumper::VisitInjectedClassNameType(
1519     const InjectedClassNameType *T) {
1520   dumpDeclRef(T->getDecl());
1521 }
1522 
1523 void TextNodeDumper::VisitObjCInterfaceType(const ObjCInterfaceType *T) {
1524   dumpDeclRef(T->getDecl());
1525 }
1526 
1527 void TextNodeDumper::VisitPackExpansionType(const PackExpansionType *T) {
1528   if (auto N = T->getNumExpansions())
1529     OS << " expansions " << *N;
1530 }
1531 
1532 void TextNodeDumper::VisitLabelDecl(const LabelDecl *D) { dumpName(D); }
1533 
1534 void TextNodeDumper::VisitTypedefDecl(const TypedefDecl *D) {
1535   dumpName(D);
1536   dumpType(D->getUnderlyingType());
1537   if (D->isModulePrivate())
1538     OS << " __module_private__";
1539 }
1540 
1541 void TextNodeDumper::VisitEnumDecl(const EnumDecl *D) {
1542   if (D->isScoped()) {
1543     if (D->isScopedUsingClassTag())
1544       OS << " class";
1545     else
1546       OS << " struct";
1547   }
1548   dumpName(D);
1549   if (D->isModulePrivate())
1550     OS << " __module_private__";
1551   if (D->isFixed())
1552     dumpType(D->getIntegerType());
1553 }
1554 
1555 void TextNodeDumper::VisitRecordDecl(const RecordDecl *D) {
1556   OS << ' ' << D->getKindName();
1557   dumpName(D);
1558   if (D->isModulePrivate())
1559     OS << " __module_private__";
1560   if (D->isCompleteDefinition())
1561     OS << " definition";
1562 }
1563 
1564 void TextNodeDumper::VisitEnumConstantDecl(const EnumConstantDecl *D) {
1565   dumpName(D);
1566   dumpType(D->getType());
1567 }
1568 
1569 void TextNodeDumper::VisitIndirectFieldDecl(const IndirectFieldDecl *D) {
1570   dumpName(D);
1571   dumpType(D->getType());
1572 
1573   for (const auto *Child : D->chain())
1574     dumpDeclRef(Child);
1575 }
1576 
1577 void TextNodeDumper::VisitFunctionDecl(const FunctionDecl *D) {
1578   dumpName(D);
1579   dumpType(D->getType());
1580 
1581   StorageClass SC = D->getStorageClass();
1582   if (SC != SC_None)
1583     OS << ' ' << VarDecl::getStorageClassSpecifierString(SC);
1584   if (D->isInlineSpecified())
1585     OS << " inline";
1586   if (D->isVirtualAsWritten())
1587     OS << " virtual";
1588   if (D->isModulePrivate())
1589     OS << " __module_private__";
1590 
1591   if (D->isPure())
1592     OS << " pure";
1593   if (D->isDefaulted()) {
1594     OS << " default";
1595     if (D->isDeleted())
1596       OS << "_delete";
1597   }
1598   if (D->isDeletedAsWritten())
1599     OS << " delete";
1600   if (D->isTrivial())
1601     OS << " trivial";
1602 
1603   if (const auto *FPT = D->getType()->getAs<FunctionProtoType>()) {
1604     FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo();
1605     switch (EPI.ExceptionSpec.Type) {
1606     default:
1607       break;
1608     case EST_Unevaluated:
1609       OS << " noexcept-unevaluated " << EPI.ExceptionSpec.SourceDecl;
1610       break;
1611     case EST_Uninstantiated:
1612       OS << " noexcept-uninstantiated " << EPI.ExceptionSpec.SourceTemplate;
1613       break;
1614     }
1615   }
1616 
1617   if (const auto *MD = dyn_cast<CXXMethodDecl>(D)) {
1618     if (MD->size_overridden_methods() != 0) {
1619       auto dumpOverride = [=](const CXXMethodDecl *D) {
1620         SplitQualType T_split = D->getType().split();
1621         OS << D << " " << D->getParent()->getName() << "::" << D->getDeclName()
1622            << " '" << QualType::getAsString(T_split, PrintPolicy) << "'";
1623       };
1624 
1625       AddChild([=] {
1626         auto Overrides = MD->overridden_methods();
1627         OS << "Overrides: [ ";
1628         dumpOverride(*Overrides.begin());
1629         for (const auto *Override :
1630              llvm::make_range(Overrides.begin() + 1, Overrides.end())) {
1631           OS << ", ";
1632           dumpOverride(Override);
1633         }
1634         OS << " ]";
1635       });
1636     }
1637   }
1638 
1639   // Since NumParams comes from the FunctionProtoType of the FunctionDecl and
1640   // the Params are set later, it is possible for a dump during debugging to
1641   // encounter a FunctionDecl that has been created but hasn't been assigned
1642   // ParmVarDecls yet.
1643   if (!D->param_empty() && !D->param_begin())
1644     OS << " <<<NULL params x " << D->getNumParams() << ">>>";
1645 }
1646 
1647 void TextNodeDumper::VisitLifetimeExtendedTemporaryDecl(
1648     const LifetimeExtendedTemporaryDecl *D) {
1649   OS << " extended by ";
1650   dumpBareDeclRef(D->getExtendingDecl());
1651   OS << " mangling ";
1652   {
1653     ColorScope Color(OS, ShowColors, ValueColor);
1654     OS << D->getManglingNumber();
1655   }
1656 }
1657 
1658 void TextNodeDumper::VisitFieldDecl(const FieldDecl *D) {
1659   dumpName(D);
1660   dumpType(D->getType());
1661   if (D->isMutable())
1662     OS << " mutable";
1663   if (D->isModulePrivate())
1664     OS << " __module_private__";
1665 }
1666 
1667 void TextNodeDumper::VisitVarDecl(const VarDecl *D) {
1668   dumpName(D);
1669   dumpType(D->getType());
1670   StorageClass SC = D->getStorageClass();
1671   if (SC != SC_None)
1672     OS << ' ' << VarDecl::getStorageClassSpecifierString(SC);
1673   switch (D->getTLSKind()) {
1674   case VarDecl::TLS_None:
1675     break;
1676   case VarDecl::TLS_Static:
1677     OS << " tls";
1678     break;
1679   case VarDecl::TLS_Dynamic:
1680     OS << " tls_dynamic";
1681     break;
1682   }
1683   if (D->isModulePrivate())
1684     OS << " __module_private__";
1685   if (D->isNRVOVariable())
1686     OS << " nrvo";
1687   if (D->isInline())
1688     OS << " inline";
1689   if (D->isConstexpr())
1690     OS << " constexpr";
1691   if (D->hasInit()) {
1692     switch (D->getInitStyle()) {
1693     case VarDecl::CInit:
1694       OS << " cinit";
1695       break;
1696     case VarDecl::CallInit:
1697       OS << " callinit";
1698       break;
1699     case VarDecl::ListInit:
1700       OS << " listinit";
1701       break;
1702     }
1703   }
1704   if (D->needsDestruction(D->getASTContext()))
1705     OS << " destroyed";
1706   if (D->isParameterPack())
1707     OS << " pack";
1708 
1709   if (D->hasInit()) {
1710     const Expr *E = D->getInit();
1711     // Only dump the value of constexpr VarDecls for now.
1712     if (E && !E->isValueDependent() && D->isConstexpr()) {
1713       const APValue *Value = D->evaluateValue();
1714       if (Value)
1715         AddChild("value", [=] { Visit(*Value, E->getType()); });
1716     }
1717   }
1718 }
1719 
1720 void TextNodeDumper::VisitBindingDecl(const BindingDecl *D) {
1721   dumpName(D);
1722   dumpType(D->getType());
1723 }
1724 
1725 void TextNodeDumper::VisitCapturedDecl(const CapturedDecl *D) {
1726   if (D->isNothrow())
1727     OS << " nothrow";
1728 }
1729 
1730 void TextNodeDumper::VisitImportDecl(const ImportDecl *D) {
1731   OS << ' ' << D->getImportedModule()->getFullModuleName();
1732 
1733   for (Decl *InitD :
1734        D->getASTContext().getModuleInitializers(D->getImportedModule()))
1735     dumpDeclRef(InitD, "initializer");
1736 }
1737 
1738 void TextNodeDumper::VisitPragmaCommentDecl(const PragmaCommentDecl *D) {
1739   OS << ' ';
1740   switch (D->getCommentKind()) {
1741   case PCK_Unknown:
1742     llvm_unreachable("unexpected pragma comment kind");
1743   case PCK_Compiler:
1744     OS << "compiler";
1745     break;
1746   case PCK_ExeStr:
1747     OS << "exestr";
1748     break;
1749   case PCK_Lib:
1750     OS << "lib";
1751     break;
1752   case PCK_Linker:
1753     OS << "linker";
1754     break;
1755   case PCK_User:
1756     OS << "user";
1757     break;
1758   }
1759   StringRef Arg = D->getArg();
1760   if (!Arg.empty())
1761     OS << " \"" << Arg << "\"";
1762 }
1763 
1764 void TextNodeDumper::VisitPragmaDetectMismatchDecl(
1765     const PragmaDetectMismatchDecl *D) {
1766   OS << " \"" << D->getName() << "\" \"" << D->getValue() << "\"";
1767 }
1768 
1769 void TextNodeDumper::VisitOMPExecutableDirective(
1770     const OMPExecutableDirective *D) {
1771   if (D->isStandaloneDirective())
1772     OS << " openmp_standalone_directive";
1773 }
1774 
1775 void TextNodeDumper::VisitOMPDeclareReductionDecl(
1776     const OMPDeclareReductionDecl *D) {
1777   dumpName(D);
1778   dumpType(D->getType());
1779   OS << " combiner";
1780   dumpPointer(D->getCombiner());
1781   if (const auto *Initializer = D->getInitializer()) {
1782     OS << " initializer";
1783     dumpPointer(Initializer);
1784     switch (D->getInitializerKind()) {
1785     case OMPDeclareReductionDecl::DirectInit:
1786       OS << " omp_priv = ";
1787       break;
1788     case OMPDeclareReductionDecl::CopyInit:
1789       OS << " omp_priv ()";
1790       break;
1791     case OMPDeclareReductionDecl::CallInit:
1792       break;
1793     }
1794   }
1795 }
1796 
1797 void TextNodeDumper::VisitOMPRequiresDecl(const OMPRequiresDecl *D) {
1798   for (const auto *C : D->clauselists()) {
1799     AddChild([=] {
1800       if (!C) {
1801         ColorScope Color(OS, ShowColors, NullColor);
1802         OS << "<<<NULL>>> OMPClause";
1803         return;
1804       }
1805       {
1806         ColorScope Color(OS, ShowColors, AttrColor);
1807         StringRef ClauseName(
1808             llvm::omp::getOpenMPClauseName(C->getClauseKind()));
1809         OS << "OMP" << ClauseName.substr(/*Start=*/0, /*N=*/1).upper()
1810            << ClauseName.drop_front() << "Clause";
1811       }
1812       dumpPointer(C);
1813       dumpSourceRange(SourceRange(C->getBeginLoc(), C->getEndLoc()));
1814     });
1815   }
1816 }
1817 
1818 void TextNodeDumper::VisitOMPCapturedExprDecl(const OMPCapturedExprDecl *D) {
1819   dumpName(D);
1820   dumpType(D->getType());
1821 }
1822 
1823 void TextNodeDumper::VisitNamespaceDecl(const NamespaceDecl *D) {
1824   dumpName(D);
1825   if (D->isInline())
1826     OS << " inline";
1827   if (!D->isOriginalNamespace())
1828     dumpDeclRef(D->getOriginalNamespace(), "original");
1829 }
1830 
1831 void TextNodeDumper::VisitUsingDirectiveDecl(const UsingDirectiveDecl *D) {
1832   OS << ' ';
1833   dumpBareDeclRef(D->getNominatedNamespace());
1834 }
1835 
1836 void TextNodeDumper::VisitNamespaceAliasDecl(const NamespaceAliasDecl *D) {
1837   dumpName(D);
1838   dumpDeclRef(D->getAliasedNamespace());
1839 }
1840 
1841 void TextNodeDumper::VisitTypeAliasDecl(const TypeAliasDecl *D) {
1842   dumpName(D);
1843   dumpType(D->getUnderlyingType());
1844 }
1845 
1846 void TextNodeDumper::VisitTypeAliasTemplateDecl(
1847     const TypeAliasTemplateDecl *D) {
1848   dumpName(D);
1849 }
1850 
1851 void TextNodeDumper::VisitCXXRecordDecl(const CXXRecordDecl *D) {
1852   VisitRecordDecl(D);
1853   if (!D->isCompleteDefinition())
1854     return;
1855 
1856   AddChild([=] {
1857     {
1858       ColorScope Color(OS, ShowColors, DeclKindNameColor);
1859       OS << "DefinitionData";
1860     }
1861 #define FLAG(fn, name)                                                         \
1862   if (D->fn())                                                                 \
1863     OS << " " #name;
1864     FLAG(isParsingBaseSpecifiers, parsing_base_specifiers);
1865 
1866     FLAG(isGenericLambda, generic);
1867     FLAG(isLambda, lambda);
1868 
1869     FLAG(isAnonymousStructOrUnion, is_anonymous);
1870     FLAG(canPassInRegisters, pass_in_registers);
1871     FLAG(isEmpty, empty);
1872     FLAG(isAggregate, aggregate);
1873     FLAG(isStandardLayout, standard_layout);
1874     FLAG(isTriviallyCopyable, trivially_copyable);
1875     FLAG(isPOD, pod);
1876     FLAG(isTrivial, trivial);
1877     FLAG(isPolymorphic, polymorphic);
1878     FLAG(isAbstract, abstract);
1879     FLAG(isLiteral, literal);
1880 
1881     FLAG(hasUserDeclaredConstructor, has_user_declared_ctor);
1882     FLAG(hasConstexprNonCopyMoveConstructor, has_constexpr_non_copy_move_ctor);
1883     FLAG(hasMutableFields, has_mutable_fields);
1884     FLAG(hasVariantMembers, has_variant_members);
1885     FLAG(allowConstDefaultInit, can_const_default_init);
1886 
1887     AddChild([=] {
1888       {
1889         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1890         OS << "DefaultConstructor";
1891       }
1892       FLAG(hasDefaultConstructor, exists);
1893       FLAG(hasTrivialDefaultConstructor, trivial);
1894       FLAG(hasNonTrivialDefaultConstructor, non_trivial);
1895       FLAG(hasUserProvidedDefaultConstructor, user_provided);
1896       FLAG(hasConstexprDefaultConstructor, constexpr);
1897       FLAG(needsImplicitDefaultConstructor, needs_implicit);
1898       FLAG(defaultedDefaultConstructorIsConstexpr, defaulted_is_constexpr);
1899     });
1900 
1901     AddChild([=] {
1902       {
1903         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1904         OS << "CopyConstructor";
1905       }
1906       FLAG(hasSimpleCopyConstructor, simple);
1907       FLAG(hasTrivialCopyConstructor, trivial);
1908       FLAG(hasNonTrivialCopyConstructor, non_trivial);
1909       FLAG(hasUserDeclaredCopyConstructor, user_declared);
1910       FLAG(hasCopyConstructorWithConstParam, has_const_param);
1911       FLAG(needsImplicitCopyConstructor, needs_implicit);
1912       FLAG(needsOverloadResolutionForCopyConstructor,
1913            needs_overload_resolution);
1914       if (!D->needsOverloadResolutionForCopyConstructor())
1915         FLAG(defaultedCopyConstructorIsDeleted, defaulted_is_deleted);
1916       FLAG(implicitCopyConstructorHasConstParam, implicit_has_const_param);
1917     });
1918 
1919     AddChild([=] {
1920       {
1921         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1922         OS << "MoveConstructor";
1923       }
1924       FLAG(hasMoveConstructor, exists);
1925       FLAG(hasSimpleMoveConstructor, simple);
1926       FLAG(hasTrivialMoveConstructor, trivial);
1927       FLAG(hasNonTrivialMoveConstructor, non_trivial);
1928       FLAG(hasUserDeclaredMoveConstructor, user_declared);
1929       FLAG(needsImplicitMoveConstructor, needs_implicit);
1930       FLAG(needsOverloadResolutionForMoveConstructor,
1931            needs_overload_resolution);
1932       if (!D->needsOverloadResolutionForMoveConstructor())
1933         FLAG(defaultedMoveConstructorIsDeleted, defaulted_is_deleted);
1934     });
1935 
1936     AddChild([=] {
1937       {
1938         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1939         OS << "CopyAssignment";
1940       }
1941       FLAG(hasSimpleCopyAssignment, simple);
1942       FLAG(hasTrivialCopyAssignment, trivial);
1943       FLAG(hasNonTrivialCopyAssignment, non_trivial);
1944       FLAG(hasCopyAssignmentWithConstParam, has_const_param);
1945       FLAG(hasUserDeclaredCopyAssignment, user_declared);
1946       FLAG(needsImplicitCopyAssignment, needs_implicit);
1947       FLAG(needsOverloadResolutionForCopyAssignment, needs_overload_resolution);
1948       FLAG(implicitCopyAssignmentHasConstParam, implicit_has_const_param);
1949     });
1950 
1951     AddChild([=] {
1952       {
1953         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1954         OS << "MoveAssignment";
1955       }
1956       FLAG(hasMoveAssignment, exists);
1957       FLAG(hasSimpleMoveAssignment, simple);
1958       FLAG(hasTrivialMoveAssignment, trivial);
1959       FLAG(hasNonTrivialMoveAssignment, non_trivial);
1960       FLAG(hasUserDeclaredMoveAssignment, user_declared);
1961       FLAG(needsImplicitMoveAssignment, needs_implicit);
1962       FLAG(needsOverloadResolutionForMoveAssignment, needs_overload_resolution);
1963     });
1964 
1965     AddChild([=] {
1966       {
1967         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1968         OS << "Destructor";
1969       }
1970       FLAG(hasSimpleDestructor, simple);
1971       FLAG(hasIrrelevantDestructor, irrelevant);
1972       FLAG(hasTrivialDestructor, trivial);
1973       FLAG(hasNonTrivialDestructor, non_trivial);
1974       FLAG(hasUserDeclaredDestructor, user_declared);
1975       FLAG(hasConstexprDestructor, constexpr);
1976       FLAG(needsImplicitDestructor, needs_implicit);
1977       FLAG(needsOverloadResolutionForDestructor, needs_overload_resolution);
1978       if (!D->needsOverloadResolutionForDestructor())
1979         FLAG(defaultedDestructorIsDeleted, defaulted_is_deleted);
1980     });
1981   });
1982 
1983   for (const auto &I : D->bases()) {
1984     AddChild([=] {
1985       if (I.isVirtual())
1986         OS << "virtual ";
1987       dumpAccessSpecifier(I.getAccessSpecifier());
1988       dumpType(I.getType());
1989       if (I.isPackExpansion())
1990         OS << "...";
1991     });
1992   }
1993 }
1994 
1995 void TextNodeDumper::VisitFunctionTemplateDecl(const FunctionTemplateDecl *D) {
1996   dumpName(D);
1997 }
1998 
1999 void TextNodeDumper::VisitClassTemplateDecl(const ClassTemplateDecl *D) {
2000   dumpName(D);
2001 }
2002 
2003 void TextNodeDumper::VisitVarTemplateDecl(const VarTemplateDecl *D) {
2004   dumpName(D);
2005 }
2006 
2007 void TextNodeDumper::VisitBuiltinTemplateDecl(const BuiltinTemplateDecl *D) {
2008   dumpName(D);
2009 }
2010 
2011 void TextNodeDumper::VisitTemplateTypeParmDecl(const TemplateTypeParmDecl *D) {
2012   if (const auto *TC = D->getTypeConstraint()) {
2013     OS << " ";
2014     dumpBareDeclRef(TC->getNamedConcept());
2015     if (TC->getNamedConcept() != TC->getFoundDecl()) {
2016       OS << " (";
2017       dumpBareDeclRef(TC->getFoundDecl());
2018       OS << ")";
2019     }
2020   } else if (D->wasDeclaredWithTypename())
2021     OS << " typename";
2022   else
2023     OS << " class";
2024   OS << " depth " << D->getDepth() << " index " << D->getIndex();
2025   if (D->isParameterPack())
2026     OS << " ...";
2027   dumpName(D);
2028 }
2029 
2030 void TextNodeDumper::VisitNonTypeTemplateParmDecl(
2031     const NonTypeTemplateParmDecl *D) {
2032   dumpType(D->getType());
2033   OS << " depth " << D->getDepth() << " index " << D->getIndex();
2034   if (D->isParameterPack())
2035     OS << " ...";
2036   dumpName(D);
2037 }
2038 
2039 void TextNodeDumper::VisitTemplateTemplateParmDecl(
2040     const TemplateTemplateParmDecl *D) {
2041   OS << " depth " << D->getDepth() << " index " << D->getIndex();
2042   if (D->isParameterPack())
2043     OS << " ...";
2044   dumpName(D);
2045 }
2046 
2047 void TextNodeDumper::VisitUsingDecl(const UsingDecl *D) {
2048   OS << ' ';
2049   if (D->getQualifier())
2050     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
2051   OS << D->getDeclName();
2052 }
2053 
2054 void TextNodeDumper::VisitUnresolvedUsingTypenameDecl(
2055     const UnresolvedUsingTypenameDecl *D) {
2056   OS << ' ';
2057   if (D->getQualifier())
2058     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
2059   OS << D->getDeclName();
2060 }
2061 
2062 void TextNodeDumper::VisitUnresolvedUsingValueDecl(
2063     const UnresolvedUsingValueDecl *D) {
2064   OS << ' ';
2065   if (D->getQualifier())
2066     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
2067   OS << D->getDeclName();
2068   dumpType(D->getType());
2069 }
2070 
2071 void TextNodeDumper::VisitUsingShadowDecl(const UsingShadowDecl *D) {
2072   OS << ' ';
2073   dumpBareDeclRef(D->getTargetDecl());
2074 }
2075 
2076 void TextNodeDumper::VisitConstructorUsingShadowDecl(
2077     const ConstructorUsingShadowDecl *D) {
2078   if (D->constructsVirtualBase())
2079     OS << " virtual";
2080 
2081   AddChild([=] {
2082     OS << "target ";
2083     dumpBareDeclRef(D->getTargetDecl());
2084   });
2085 
2086   AddChild([=] {
2087     OS << "nominated ";
2088     dumpBareDeclRef(D->getNominatedBaseClass());
2089     OS << ' ';
2090     dumpBareDeclRef(D->getNominatedBaseClassShadowDecl());
2091   });
2092 
2093   AddChild([=] {
2094     OS << "constructed ";
2095     dumpBareDeclRef(D->getConstructedBaseClass());
2096     OS << ' ';
2097     dumpBareDeclRef(D->getConstructedBaseClassShadowDecl());
2098   });
2099 }
2100 
2101 void TextNodeDumper::VisitLinkageSpecDecl(const LinkageSpecDecl *D) {
2102   switch (D->getLanguage()) {
2103   case LinkageSpecDecl::lang_c:
2104     OS << " C";
2105     break;
2106   case LinkageSpecDecl::lang_cxx:
2107     OS << " C++";
2108     break;
2109   }
2110 }
2111 
2112 void TextNodeDumper::VisitAccessSpecDecl(const AccessSpecDecl *D) {
2113   OS << ' ';
2114   dumpAccessSpecifier(D->getAccess());
2115 }
2116 
2117 void TextNodeDumper::VisitFriendDecl(const FriendDecl *D) {
2118   if (TypeSourceInfo *T = D->getFriendType())
2119     dumpType(T->getType());
2120 }
2121 
2122 void TextNodeDumper::VisitObjCIvarDecl(const ObjCIvarDecl *D) {
2123   dumpName(D);
2124   dumpType(D->getType());
2125   if (D->getSynthesize())
2126     OS << " synthesize";
2127 
2128   switch (D->getAccessControl()) {
2129   case ObjCIvarDecl::None:
2130     OS << " none";
2131     break;
2132   case ObjCIvarDecl::Private:
2133     OS << " private";
2134     break;
2135   case ObjCIvarDecl::Protected:
2136     OS << " protected";
2137     break;
2138   case ObjCIvarDecl::Public:
2139     OS << " public";
2140     break;
2141   case ObjCIvarDecl::Package:
2142     OS << " package";
2143     break;
2144   }
2145 }
2146 
2147 void TextNodeDumper::VisitObjCMethodDecl(const ObjCMethodDecl *D) {
2148   if (D->isInstanceMethod())
2149     OS << " -";
2150   else
2151     OS << " +";
2152   dumpName(D);
2153   dumpType(D->getReturnType());
2154 
2155   if (D->isVariadic())
2156     OS << " variadic";
2157 }
2158 
2159 void TextNodeDumper::VisitObjCTypeParamDecl(const ObjCTypeParamDecl *D) {
2160   dumpName(D);
2161   switch (D->getVariance()) {
2162   case ObjCTypeParamVariance::Invariant:
2163     break;
2164 
2165   case ObjCTypeParamVariance::Covariant:
2166     OS << " covariant";
2167     break;
2168 
2169   case ObjCTypeParamVariance::Contravariant:
2170     OS << " contravariant";
2171     break;
2172   }
2173 
2174   if (D->hasExplicitBound())
2175     OS << " bounded";
2176   dumpType(D->getUnderlyingType());
2177 }
2178 
2179 void TextNodeDumper::VisitObjCCategoryDecl(const ObjCCategoryDecl *D) {
2180   dumpName(D);
2181   dumpDeclRef(D->getClassInterface());
2182   dumpDeclRef(D->getImplementation());
2183   for (const auto *P : D->protocols())
2184     dumpDeclRef(P);
2185 }
2186 
2187 void TextNodeDumper::VisitObjCCategoryImplDecl(const ObjCCategoryImplDecl *D) {
2188   dumpName(D);
2189   dumpDeclRef(D->getClassInterface());
2190   dumpDeclRef(D->getCategoryDecl());
2191 }
2192 
2193 void TextNodeDumper::VisitObjCProtocolDecl(const ObjCProtocolDecl *D) {
2194   dumpName(D);
2195 
2196   for (const auto *Child : D->protocols())
2197     dumpDeclRef(Child);
2198 }
2199 
2200 void TextNodeDumper::VisitObjCInterfaceDecl(const ObjCInterfaceDecl *D) {
2201   dumpName(D);
2202   dumpDeclRef(D->getSuperClass(), "super");
2203 
2204   dumpDeclRef(D->getImplementation());
2205   for (const auto *Child : D->protocols())
2206     dumpDeclRef(Child);
2207 }
2208 
2209 void TextNodeDumper::VisitObjCImplementationDecl(
2210     const ObjCImplementationDecl *D) {
2211   dumpName(D);
2212   dumpDeclRef(D->getSuperClass(), "super");
2213   dumpDeclRef(D->getClassInterface());
2214 }
2215 
2216 void TextNodeDumper::VisitObjCCompatibleAliasDecl(
2217     const ObjCCompatibleAliasDecl *D) {
2218   dumpName(D);
2219   dumpDeclRef(D->getClassInterface());
2220 }
2221 
2222 void TextNodeDumper::VisitObjCPropertyDecl(const ObjCPropertyDecl *D) {
2223   dumpName(D);
2224   dumpType(D->getType());
2225 
2226   if (D->getPropertyImplementation() == ObjCPropertyDecl::Required)
2227     OS << " required";
2228   else if (D->getPropertyImplementation() == ObjCPropertyDecl::Optional)
2229     OS << " optional";
2230 
2231   ObjCPropertyAttribute::Kind Attrs = D->getPropertyAttributes();
2232   if (Attrs != ObjCPropertyAttribute::kind_noattr) {
2233     if (Attrs & ObjCPropertyAttribute::kind_readonly)
2234       OS << " readonly";
2235     if (Attrs & ObjCPropertyAttribute::kind_assign)
2236       OS << " assign";
2237     if (Attrs & ObjCPropertyAttribute::kind_readwrite)
2238       OS << " readwrite";
2239     if (Attrs & ObjCPropertyAttribute::kind_retain)
2240       OS << " retain";
2241     if (Attrs & ObjCPropertyAttribute::kind_copy)
2242       OS << " copy";
2243     if (Attrs & ObjCPropertyAttribute::kind_nonatomic)
2244       OS << " nonatomic";
2245     if (Attrs & ObjCPropertyAttribute::kind_atomic)
2246       OS << " atomic";
2247     if (Attrs & ObjCPropertyAttribute::kind_weak)
2248       OS << " weak";
2249     if (Attrs & ObjCPropertyAttribute::kind_strong)
2250       OS << " strong";
2251     if (Attrs & ObjCPropertyAttribute::kind_unsafe_unretained)
2252       OS << " unsafe_unretained";
2253     if (Attrs & ObjCPropertyAttribute::kind_class)
2254       OS << " class";
2255     if (Attrs & ObjCPropertyAttribute::kind_direct)
2256       OS << " direct";
2257     if (Attrs & ObjCPropertyAttribute::kind_getter)
2258       dumpDeclRef(D->getGetterMethodDecl(), "getter");
2259     if (Attrs & ObjCPropertyAttribute::kind_setter)
2260       dumpDeclRef(D->getSetterMethodDecl(), "setter");
2261   }
2262 }
2263 
2264 void TextNodeDumper::VisitObjCPropertyImplDecl(const ObjCPropertyImplDecl *D) {
2265   dumpName(D->getPropertyDecl());
2266   if (D->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize)
2267     OS << " synthesize";
2268   else
2269     OS << " dynamic";
2270   dumpDeclRef(D->getPropertyDecl());
2271   dumpDeclRef(D->getPropertyIvarDecl());
2272 }
2273 
2274 void TextNodeDumper::VisitBlockDecl(const BlockDecl *D) {
2275   if (D->isVariadic())
2276     OS << " variadic";
2277 
2278   if (D->capturesCXXThis())
2279     OS << " captures_this";
2280 }
2281 
2282 void TextNodeDumper::VisitConceptDecl(const ConceptDecl *D) {
2283   dumpName(D);
2284 }
2285