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 }
968 
969 void TextNodeDumper::VisitImplicitCastExpr(const ImplicitCastExpr *Node) {
970   VisitCastExpr(Node);
971   if (Node->isPartOfExplicitCast())
972     OS << " part_of_explicit_cast";
973 }
974 
975 void TextNodeDumper::VisitDeclRefExpr(const DeclRefExpr *Node) {
976   OS << " ";
977   dumpBareDeclRef(Node->getDecl());
978   if (Node->getDecl() != Node->getFoundDecl()) {
979     OS << " (";
980     dumpBareDeclRef(Node->getFoundDecl());
981     OS << ")";
982   }
983   switch (Node->isNonOdrUse()) {
984   case NOUR_None: break;
985   case NOUR_Unevaluated: OS << " non_odr_use_unevaluated"; break;
986   case NOUR_Constant: OS << " non_odr_use_constant"; break;
987   case NOUR_Discarded: OS << " non_odr_use_discarded"; break;
988   }
989 }
990 
991 void TextNodeDumper::VisitUnresolvedLookupExpr(
992     const UnresolvedLookupExpr *Node) {
993   OS << " (";
994   if (!Node->requiresADL())
995     OS << "no ";
996   OS << "ADL) = '" << Node->getName() << '\'';
997 
998   UnresolvedLookupExpr::decls_iterator I = Node->decls_begin(),
999                                        E = Node->decls_end();
1000   if (I == E)
1001     OS << " empty";
1002   for (; I != E; ++I)
1003     dumpPointer(*I);
1004 }
1005 
1006 void TextNodeDumper::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *Node) {
1007   {
1008     ColorScope Color(OS, ShowColors, DeclKindNameColor);
1009     OS << " " << Node->getDecl()->getDeclKindName() << "Decl";
1010   }
1011   OS << "='" << *Node->getDecl() << "'";
1012   dumpPointer(Node->getDecl());
1013   if (Node->isFreeIvar())
1014     OS << " isFreeIvar";
1015 }
1016 
1017 void TextNodeDumper::VisitPredefinedExpr(const PredefinedExpr *Node) {
1018   OS << " " << PredefinedExpr::getIdentKindName(Node->getIdentKind());
1019 }
1020 
1021 void TextNodeDumper::VisitCharacterLiteral(const CharacterLiteral *Node) {
1022   ColorScope Color(OS, ShowColors, ValueColor);
1023   OS << " " << Node->getValue();
1024 }
1025 
1026 void TextNodeDumper::VisitIntegerLiteral(const IntegerLiteral *Node) {
1027   bool isSigned = Node->getType()->isSignedIntegerType();
1028   ColorScope Color(OS, ShowColors, ValueColor);
1029   OS << " " << Node->getValue().toString(10, isSigned);
1030 }
1031 
1032 void TextNodeDumper::VisitFixedPointLiteral(const FixedPointLiteral *Node) {
1033   ColorScope Color(OS, ShowColors, ValueColor);
1034   OS << " " << Node->getValueAsString(/*Radix=*/10);
1035 }
1036 
1037 void TextNodeDumper::VisitFloatingLiteral(const FloatingLiteral *Node) {
1038   ColorScope Color(OS, ShowColors, ValueColor);
1039   OS << " " << Node->getValueAsApproximateDouble();
1040 }
1041 
1042 void TextNodeDumper::VisitStringLiteral(const StringLiteral *Str) {
1043   ColorScope Color(OS, ShowColors, ValueColor);
1044   OS << " ";
1045   Str->outputString(OS);
1046 }
1047 
1048 void TextNodeDumper::VisitInitListExpr(const InitListExpr *ILE) {
1049   if (auto *Field = ILE->getInitializedFieldInUnion()) {
1050     OS << " field ";
1051     dumpBareDeclRef(Field);
1052   }
1053 }
1054 
1055 void TextNodeDumper::VisitGenericSelectionExpr(const GenericSelectionExpr *E) {
1056   if (E->isResultDependent())
1057     OS << " result_dependent";
1058 }
1059 
1060 void TextNodeDumper::VisitUnaryOperator(const UnaryOperator *Node) {
1061   OS << " " << (Node->isPostfix() ? "postfix" : "prefix") << " '"
1062      << UnaryOperator::getOpcodeStr(Node->getOpcode()) << "'";
1063   if (!Node->canOverflow())
1064     OS << " cannot overflow";
1065   if (Node->hasStoredFPFeatures())
1066     printFPOptions(Node->getStoredFPFeatures());
1067 }
1068 
1069 void TextNodeDumper::VisitUnaryExprOrTypeTraitExpr(
1070     const UnaryExprOrTypeTraitExpr *Node) {
1071   OS << " " << getTraitSpelling(Node->getKind());
1072 
1073   if (Node->isArgumentType())
1074     dumpType(Node->getArgumentType());
1075 }
1076 
1077 void TextNodeDumper::VisitMemberExpr(const MemberExpr *Node) {
1078   OS << " " << (Node->isArrow() ? "->" : ".") << *Node->getMemberDecl();
1079   dumpPointer(Node->getMemberDecl());
1080   switch (Node->isNonOdrUse()) {
1081   case NOUR_None: break;
1082   case NOUR_Unevaluated: OS << " non_odr_use_unevaluated"; break;
1083   case NOUR_Constant: OS << " non_odr_use_constant"; break;
1084   case NOUR_Discarded: OS << " non_odr_use_discarded"; break;
1085   }
1086 }
1087 
1088 void TextNodeDumper::VisitExtVectorElementExpr(
1089     const ExtVectorElementExpr *Node) {
1090   OS << " " << Node->getAccessor().getNameStart();
1091 }
1092 
1093 void TextNodeDumper::VisitBinaryOperator(const BinaryOperator *Node) {
1094   OS << " '" << BinaryOperator::getOpcodeStr(Node->getOpcode()) << "'";
1095   if (Node->hasStoredFPFeatures())
1096     printFPOptions(Node->getStoredFPFeatures());
1097 }
1098 
1099 void TextNodeDumper::VisitCompoundAssignOperator(
1100     const CompoundAssignOperator *Node) {
1101   OS << " '" << BinaryOperator::getOpcodeStr(Node->getOpcode())
1102      << "' ComputeLHSTy=";
1103   dumpBareType(Node->getComputationLHSType());
1104   OS << " ComputeResultTy=";
1105   dumpBareType(Node->getComputationResultType());
1106 }
1107 
1108 void TextNodeDumper::VisitAddrLabelExpr(const AddrLabelExpr *Node) {
1109   OS << " " << Node->getLabel()->getName();
1110   dumpPointer(Node->getLabel());
1111 }
1112 
1113 void TextNodeDumper::VisitCXXNamedCastExpr(const CXXNamedCastExpr *Node) {
1114   OS << " " << Node->getCastName() << "<"
1115      << Node->getTypeAsWritten().getAsString() << ">"
1116      << " <" << Node->getCastKindName();
1117   dumpBasePath(OS, Node);
1118   OS << ">";
1119 }
1120 
1121 void TextNodeDumper::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *Node) {
1122   OS << " " << (Node->getValue() ? "true" : "false");
1123 }
1124 
1125 void TextNodeDumper::VisitCXXThisExpr(const CXXThisExpr *Node) {
1126   if (Node->isImplicit())
1127     OS << " implicit";
1128   OS << " this";
1129 }
1130 
1131 void TextNodeDumper::VisitCXXFunctionalCastExpr(
1132     const CXXFunctionalCastExpr *Node) {
1133   OS << " functional cast to " << Node->getTypeAsWritten().getAsString() << " <"
1134      << Node->getCastKindName() << ">";
1135 }
1136 
1137 void TextNodeDumper::VisitCXXUnresolvedConstructExpr(
1138     const CXXUnresolvedConstructExpr *Node) {
1139   dumpType(Node->getTypeAsWritten());
1140   if (Node->isListInitialization())
1141     OS << " list";
1142 }
1143 
1144 void TextNodeDumper::VisitCXXConstructExpr(const CXXConstructExpr *Node) {
1145   CXXConstructorDecl *Ctor = Node->getConstructor();
1146   dumpType(Ctor->getType());
1147   if (Node->isElidable())
1148     OS << " elidable";
1149   if (Node->isListInitialization())
1150     OS << " list";
1151   if (Node->isStdInitListInitialization())
1152     OS << " std::initializer_list";
1153   if (Node->requiresZeroInitialization())
1154     OS << " zeroing";
1155 }
1156 
1157 void TextNodeDumper::VisitCXXBindTemporaryExpr(
1158     const CXXBindTemporaryExpr *Node) {
1159   OS << " (CXXTemporary";
1160   dumpPointer(Node);
1161   OS << ")";
1162 }
1163 
1164 void TextNodeDumper::VisitCXXNewExpr(const CXXNewExpr *Node) {
1165   if (Node->isGlobalNew())
1166     OS << " global";
1167   if (Node->isArray())
1168     OS << " array";
1169   if (Node->getOperatorNew()) {
1170     OS << ' ';
1171     dumpBareDeclRef(Node->getOperatorNew());
1172   }
1173   // We could dump the deallocation function used in case of error, but it's
1174   // usually not that interesting.
1175 }
1176 
1177 void TextNodeDumper::VisitCXXDeleteExpr(const CXXDeleteExpr *Node) {
1178   if (Node->isGlobalDelete())
1179     OS << " global";
1180   if (Node->isArrayForm())
1181     OS << " array";
1182   if (Node->getOperatorDelete()) {
1183     OS << ' ';
1184     dumpBareDeclRef(Node->getOperatorDelete());
1185   }
1186 }
1187 
1188 void TextNodeDumper::VisitTypeTraitExpr(const TypeTraitExpr *Node) {
1189   OS << " " << getTraitSpelling(Node->getTrait());
1190 }
1191 
1192 void TextNodeDumper::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *Node) {
1193   OS << " " << getTraitSpelling(Node->getTrait());
1194 }
1195 
1196 void TextNodeDumper::VisitExpressionTraitExpr(const ExpressionTraitExpr *Node) {
1197   OS << " " << getTraitSpelling(Node->getTrait());
1198 }
1199 
1200 void TextNodeDumper::VisitMaterializeTemporaryExpr(
1201     const MaterializeTemporaryExpr *Node) {
1202   if (const ValueDecl *VD = Node->getExtendingDecl()) {
1203     OS << " extended by ";
1204     dumpBareDeclRef(VD);
1205   }
1206 }
1207 
1208 void TextNodeDumper::VisitExprWithCleanups(const ExprWithCleanups *Node) {
1209   for (unsigned i = 0, e = Node->getNumObjects(); i != e; ++i)
1210     dumpCleanupObject(Node->getObject(i));
1211 }
1212 
1213 void TextNodeDumper::VisitSizeOfPackExpr(const SizeOfPackExpr *Node) {
1214   dumpPointer(Node->getPack());
1215   dumpName(Node->getPack());
1216 }
1217 
1218 void TextNodeDumper::VisitCXXDependentScopeMemberExpr(
1219     const CXXDependentScopeMemberExpr *Node) {
1220   OS << " " << (Node->isArrow() ? "->" : ".") << Node->getMember();
1221 }
1222 
1223 void TextNodeDumper::VisitObjCMessageExpr(const ObjCMessageExpr *Node) {
1224   OS << " selector=";
1225   Node->getSelector().print(OS);
1226   switch (Node->getReceiverKind()) {
1227   case ObjCMessageExpr::Instance:
1228     break;
1229 
1230   case ObjCMessageExpr::Class:
1231     OS << " class=";
1232     dumpBareType(Node->getClassReceiver());
1233     break;
1234 
1235   case ObjCMessageExpr::SuperInstance:
1236     OS << " super (instance)";
1237     break;
1238 
1239   case ObjCMessageExpr::SuperClass:
1240     OS << " super (class)";
1241     break;
1242   }
1243 }
1244 
1245 void TextNodeDumper::VisitObjCBoxedExpr(const ObjCBoxedExpr *Node) {
1246   if (auto *BoxingMethod = Node->getBoxingMethod()) {
1247     OS << " selector=";
1248     BoxingMethod->getSelector().print(OS);
1249   }
1250 }
1251 
1252 void TextNodeDumper::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *Node) {
1253   if (!Node->getCatchParamDecl())
1254     OS << " catch all";
1255 }
1256 
1257 void TextNodeDumper::VisitObjCEncodeExpr(const ObjCEncodeExpr *Node) {
1258   dumpType(Node->getEncodedType());
1259 }
1260 
1261 void TextNodeDumper::VisitObjCSelectorExpr(const ObjCSelectorExpr *Node) {
1262   OS << " ";
1263   Node->getSelector().print(OS);
1264 }
1265 
1266 void TextNodeDumper::VisitObjCProtocolExpr(const ObjCProtocolExpr *Node) {
1267   OS << ' ' << *Node->getProtocol();
1268 }
1269 
1270 void TextNodeDumper::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *Node) {
1271   if (Node->isImplicitProperty()) {
1272     OS << " Kind=MethodRef Getter=\"";
1273     if (Node->getImplicitPropertyGetter())
1274       Node->getImplicitPropertyGetter()->getSelector().print(OS);
1275     else
1276       OS << "(null)";
1277 
1278     OS << "\" Setter=\"";
1279     if (ObjCMethodDecl *Setter = Node->getImplicitPropertySetter())
1280       Setter->getSelector().print(OS);
1281     else
1282       OS << "(null)";
1283     OS << "\"";
1284   } else {
1285     OS << " Kind=PropertyRef Property=\"" << *Node->getExplicitProperty()
1286        << '"';
1287   }
1288 
1289   if (Node->isSuperReceiver())
1290     OS << " super";
1291 
1292   OS << " Messaging=";
1293   if (Node->isMessagingGetter() && Node->isMessagingSetter())
1294     OS << "Getter&Setter";
1295   else if (Node->isMessagingGetter())
1296     OS << "Getter";
1297   else if (Node->isMessagingSetter())
1298     OS << "Setter";
1299 }
1300 
1301 void TextNodeDumper::VisitObjCSubscriptRefExpr(
1302     const ObjCSubscriptRefExpr *Node) {
1303   if (Node->isArraySubscriptRefExpr())
1304     OS << " Kind=ArraySubscript GetterForArray=\"";
1305   else
1306     OS << " Kind=DictionarySubscript GetterForDictionary=\"";
1307   if (Node->getAtIndexMethodDecl())
1308     Node->getAtIndexMethodDecl()->getSelector().print(OS);
1309   else
1310     OS << "(null)";
1311 
1312   if (Node->isArraySubscriptRefExpr())
1313     OS << "\" SetterForArray=\"";
1314   else
1315     OS << "\" SetterForDictionary=\"";
1316   if (Node->setAtIndexMethodDecl())
1317     Node->setAtIndexMethodDecl()->getSelector().print(OS);
1318   else
1319     OS << "(null)";
1320 }
1321 
1322 void TextNodeDumper::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *Node) {
1323   OS << " " << (Node->getValue() ? "__objc_yes" : "__objc_no");
1324 }
1325 
1326 void TextNodeDumper::VisitOMPIteratorExpr(const OMPIteratorExpr *Node) {
1327   OS << " ";
1328   for (unsigned I = 0, E = Node->numOfIterators(); I < E; ++I) {
1329     Visit(Node->getIteratorDecl(I));
1330     OS << " = ";
1331     const OMPIteratorExpr::IteratorRange Range = Node->getIteratorRange(I);
1332     OS << " begin ";
1333     Visit(Range.Begin);
1334     OS << " end ";
1335     Visit(Range.End);
1336     if (Range.Step) {
1337       OS << " step ";
1338       Visit(Range.Step);
1339     }
1340   }
1341 }
1342 
1343 void TextNodeDumper::VisitConceptSpecializationExpr(
1344     const ConceptSpecializationExpr *Node) {
1345   OS << " ";
1346   dumpBareDeclRef(Node->getFoundDecl());
1347 }
1348 
1349 void TextNodeDumper::VisitRValueReferenceType(const ReferenceType *T) {
1350   if (T->isSpelledAsLValue())
1351     OS << " written as lvalue reference";
1352 }
1353 
1354 void TextNodeDumper::VisitArrayType(const ArrayType *T) {
1355   switch (T->getSizeModifier()) {
1356   case ArrayType::Normal:
1357     break;
1358   case ArrayType::Static:
1359     OS << " static";
1360     break;
1361   case ArrayType::Star:
1362     OS << " *";
1363     break;
1364   }
1365   OS << " " << T->getIndexTypeQualifiers().getAsString();
1366 }
1367 
1368 void TextNodeDumper::VisitConstantArrayType(const ConstantArrayType *T) {
1369   OS << " " << T->getSize();
1370   VisitArrayType(T);
1371 }
1372 
1373 void TextNodeDumper::VisitVariableArrayType(const VariableArrayType *T) {
1374   OS << " ";
1375   dumpSourceRange(T->getBracketsRange());
1376   VisitArrayType(T);
1377 }
1378 
1379 void TextNodeDumper::VisitDependentSizedArrayType(
1380     const DependentSizedArrayType *T) {
1381   VisitArrayType(T);
1382   OS << " ";
1383   dumpSourceRange(T->getBracketsRange());
1384 }
1385 
1386 void TextNodeDumper::VisitDependentSizedExtVectorType(
1387     const DependentSizedExtVectorType *T) {
1388   OS << " ";
1389   dumpLocation(T->getAttributeLoc());
1390 }
1391 
1392 void TextNodeDumper::VisitVectorType(const VectorType *T) {
1393   switch (T->getVectorKind()) {
1394   case VectorType::GenericVector:
1395     break;
1396   case VectorType::AltiVecVector:
1397     OS << " altivec";
1398     break;
1399   case VectorType::AltiVecPixel:
1400     OS << " altivec pixel";
1401     break;
1402   case VectorType::AltiVecBool:
1403     OS << " altivec bool";
1404     break;
1405   case VectorType::NeonVector:
1406     OS << " neon";
1407     break;
1408   case VectorType::NeonPolyVector:
1409     OS << " neon poly";
1410     break;
1411   case VectorType::SveFixedLengthDataVector:
1412     OS << " fixed-length sve data vector";
1413     break;
1414   case VectorType::SveFixedLengthPredicateVector:
1415     OS << " fixed-length sve predicate vector";
1416     break;
1417   }
1418   OS << " " << T->getNumElements();
1419 }
1420 
1421 void TextNodeDumper::VisitFunctionType(const FunctionType *T) {
1422   auto EI = T->getExtInfo();
1423   if (EI.getNoReturn())
1424     OS << " noreturn";
1425   if (EI.getProducesResult())
1426     OS << " produces_result";
1427   if (EI.getHasRegParm())
1428     OS << " regparm " << EI.getRegParm();
1429   OS << " " << FunctionType::getNameForCallConv(EI.getCC());
1430 }
1431 
1432 void TextNodeDumper::VisitFunctionProtoType(const FunctionProtoType *T) {
1433   auto EPI = T->getExtProtoInfo();
1434   if (EPI.HasTrailingReturn)
1435     OS << " trailing_return";
1436   if (T->isConst())
1437     OS << " const";
1438   if (T->isVolatile())
1439     OS << " volatile";
1440   if (T->isRestrict())
1441     OS << " restrict";
1442   if (T->getExtProtoInfo().Variadic)
1443     OS << " variadic";
1444   switch (EPI.RefQualifier) {
1445   case RQ_None:
1446     break;
1447   case RQ_LValue:
1448     OS << " &";
1449     break;
1450   case RQ_RValue:
1451     OS << " &&";
1452     break;
1453   }
1454   // FIXME: Exception specification.
1455   // FIXME: Consumed parameters.
1456   VisitFunctionType(T);
1457 }
1458 
1459 void TextNodeDumper::VisitUnresolvedUsingType(const UnresolvedUsingType *T) {
1460   dumpDeclRef(T->getDecl());
1461 }
1462 
1463 void TextNodeDumper::VisitTypedefType(const TypedefType *T) {
1464   dumpDeclRef(T->getDecl());
1465 }
1466 
1467 void TextNodeDumper::VisitUnaryTransformType(const UnaryTransformType *T) {
1468   switch (T->getUTTKind()) {
1469   case UnaryTransformType::EnumUnderlyingType:
1470     OS << " underlying_type";
1471     break;
1472   }
1473 }
1474 
1475 void TextNodeDumper::VisitTagType(const TagType *T) {
1476   dumpDeclRef(T->getDecl());
1477 }
1478 
1479 void TextNodeDumper::VisitTemplateTypeParmType(const TemplateTypeParmType *T) {
1480   OS << " depth " << T->getDepth() << " index " << T->getIndex();
1481   if (T->isParameterPack())
1482     OS << " pack";
1483   dumpDeclRef(T->getDecl());
1484 }
1485 
1486 void TextNodeDumper::VisitAutoType(const AutoType *T) {
1487   if (T->isDecltypeAuto())
1488     OS << " decltype(auto)";
1489   if (!T->isDeduced())
1490     OS << " undeduced";
1491   if (T->isConstrained()) {
1492     dumpDeclRef(T->getTypeConstraintConcept());
1493     for (const auto &Arg : T->getTypeConstraintArguments())
1494       VisitTemplateArgument(Arg);
1495   }
1496 }
1497 
1498 void TextNodeDumper::VisitTemplateSpecializationType(
1499     const TemplateSpecializationType *T) {
1500   if (T->isTypeAlias())
1501     OS << " alias";
1502   OS << " ";
1503   T->getTemplateName().dump(OS);
1504 }
1505 
1506 void TextNodeDumper::VisitInjectedClassNameType(
1507     const InjectedClassNameType *T) {
1508   dumpDeclRef(T->getDecl());
1509 }
1510 
1511 void TextNodeDumper::VisitObjCInterfaceType(const ObjCInterfaceType *T) {
1512   dumpDeclRef(T->getDecl());
1513 }
1514 
1515 void TextNodeDumper::VisitPackExpansionType(const PackExpansionType *T) {
1516   if (auto N = T->getNumExpansions())
1517     OS << " expansions " << *N;
1518 }
1519 
1520 void TextNodeDumper::VisitLabelDecl(const LabelDecl *D) { dumpName(D); }
1521 
1522 void TextNodeDumper::VisitTypedefDecl(const TypedefDecl *D) {
1523   dumpName(D);
1524   dumpType(D->getUnderlyingType());
1525   if (D->isModulePrivate())
1526     OS << " __module_private__";
1527 }
1528 
1529 void TextNodeDumper::VisitEnumDecl(const EnumDecl *D) {
1530   if (D->isScoped()) {
1531     if (D->isScopedUsingClassTag())
1532       OS << " class";
1533     else
1534       OS << " struct";
1535   }
1536   dumpName(D);
1537   if (D->isModulePrivate())
1538     OS << " __module_private__";
1539   if (D->isFixed())
1540     dumpType(D->getIntegerType());
1541 }
1542 
1543 void TextNodeDumper::VisitRecordDecl(const RecordDecl *D) {
1544   OS << ' ' << D->getKindName();
1545   dumpName(D);
1546   if (D->isModulePrivate())
1547     OS << " __module_private__";
1548   if (D->isCompleteDefinition())
1549     OS << " definition";
1550 }
1551 
1552 void TextNodeDumper::VisitEnumConstantDecl(const EnumConstantDecl *D) {
1553   dumpName(D);
1554   dumpType(D->getType());
1555 }
1556 
1557 void TextNodeDumper::VisitIndirectFieldDecl(const IndirectFieldDecl *D) {
1558   dumpName(D);
1559   dumpType(D->getType());
1560 
1561   for (const auto *Child : D->chain())
1562     dumpDeclRef(Child);
1563 }
1564 
1565 void TextNodeDumper::VisitFunctionDecl(const FunctionDecl *D) {
1566   dumpName(D);
1567   dumpType(D->getType());
1568 
1569   StorageClass SC = D->getStorageClass();
1570   if (SC != SC_None)
1571     OS << ' ' << VarDecl::getStorageClassSpecifierString(SC);
1572   if (D->isInlineSpecified())
1573     OS << " inline";
1574   if (D->isVirtualAsWritten())
1575     OS << " virtual";
1576   if (D->isModulePrivate())
1577     OS << " __module_private__";
1578 
1579   if (D->isPure())
1580     OS << " pure";
1581   if (D->isDefaulted()) {
1582     OS << " default";
1583     if (D->isDeleted())
1584       OS << "_delete";
1585   }
1586   if (D->isDeletedAsWritten())
1587     OS << " delete";
1588   if (D->isTrivial())
1589     OS << " trivial";
1590 
1591   if (const auto *FPT = D->getType()->getAs<FunctionProtoType>()) {
1592     FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo();
1593     switch (EPI.ExceptionSpec.Type) {
1594     default:
1595       break;
1596     case EST_Unevaluated:
1597       OS << " noexcept-unevaluated " << EPI.ExceptionSpec.SourceDecl;
1598       break;
1599     case EST_Uninstantiated:
1600       OS << " noexcept-uninstantiated " << EPI.ExceptionSpec.SourceTemplate;
1601       break;
1602     }
1603   }
1604 
1605   if (const auto *MD = dyn_cast<CXXMethodDecl>(D)) {
1606     if (MD->size_overridden_methods() != 0) {
1607       auto dumpOverride = [=](const CXXMethodDecl *D) {
1608         SplitQualType T_split = D->getType().split();
1609         OS << D << " " << D->getParent()->getName() << "::" << D->getDeclName()
1610            << " '" << QualType::getAsString(T_split, PrintPolicy) << "'";
1611       };
1612 
1613       AddChild([=] {
1614         auto Overrides = MD->overridden_methods();
1615         OS << "Overrides: [ ";
1616         dumpOverride(*Overrides.begin());
1617         for (const auto *Override :
1618              llvm::make_range(Overrides.begin() + 1, Overrides.end())) {
1619           OS << ", ";
1620           dumpOverride(Override);
1621         }
1622         OS << " ]";
1623       });
1624     }
1625   }
1626 
1627   // Since NumParams comes from the FunctionProtoType of the FunctionDecl and
1628   // the Params are set later, it is possible for a dump during debugging to
1629   // encounter a FunctionDecl that has been created but hasn't been assigned
1630   // ParmVarDecls yet.
1631   if (!D->param_empty() && !D->param_begin())
1632     OS << " <<<NULL params x " << D->getNumParams() << ">>>";
1633 }
1634 
1635 void TextNodeDumper::VisitLifetimeExtendedTemporaryDecl(
1636     const LifetimeExtendedTemporaryDecl *D) {
1637   OS << " extended by ";
1638   dumpBareDeclRef(D->getExtendingDecl());
1639   OS << " mangling ";
1640   {
1641     ColorScope Color(OS, ShowColors, ValueColor);
1642     OS << D->getManglingNumber();
1643   }
1644 }
1645 
1646 void TextNodeDumper::VisitFieldDecl(const FieldDecl *D) {
1647   dumpName(D);
1648   dumpType(D->getType());
1649   if (D->isMutable())
1650     OS << " mutable";
1651   if (D->isModulePrivate())
1652     OS << " __module_private__";
1653 }
1654 
1655 void TextNodeDumper::VisitVarDecl(const VarDecl *D) {
1656   dumpName(D);
1657   dumpType(D->getType());
1658   StorageClass SC = D->getStorageClass();
1659   if (SC != SC_None)
1660     OS << ' ' << VarDecl::getStorageClassSpecifierString(SC);
1661   switch (D->getTLSKind()) {
1662   case VarDecl::TLS_None:
1663     break;
1664   case VarDecl::TLS_Static:
1665     OS << " tls";
1666     break;
1667   case VarDecl::TLS_Dynamic:
1668     OS << " tls_dynamic";
1669     break;
1670   }
1671   if (D->isModulePrivate())
1672     OS << " __module_private__";
1673   if (D->isNRVOVariable())
1674     OS << " nrvo";
1675   if (D->isInline())
1676     OS << " inline";
1677   if (D->isConstexpr())
1678     OS << " constexpr";
1679   if (D->hasInit()) {
1680     switch (D->getInitStyle()) {
1681     case VarDecl::CInit:
1682       OS << " cinit";
1683       break;
1684     case VarDecl::CallInit:
1685       OS << " callinit";
1686       break;
1687     case VarDecl::ListInit:
1688       OS << " listinit";
1689       break;
1690     }
1691   }
1692   if (D->needsDestruction(D->getASTContext()))
1693     OS << " destroyed";
1694   if (D->isParameterPack())
1695     OS << " pack";
1696 
1697   if (D->hasInit()) {
1698     const Expr *E = D->getInit();
1699     // Only dump the value of constexpr VarDecls for now.
1700     if (E && !E->isValueDependent() && D->isConstexpr()) {
1701       const APValue *Value = D->evaluateValue();
1702       if (Value)
1703         AddChild("value", [=] { Visit(*Value, E->getType()); });
1704     }
1705   }
1706 }
1707 
1708 void TextNodeDumper::VisitBindingDecl(const BindingDecl *D) {
1709   dumpName(D);
1710   dumpType(D->getType());
1711 }
1712 
1713 void TextNodeDumper::VisitCapturedDecl(const CapturedDecl *D) {
1714   if (D->isNothrow())
1715     OS << " nothrow";
1716 }
1717 
1718 void TextNodeDumper::VisitImportDecl(const ImportDecl *D) {
1719   OS << ' ' << D->getImportedModule()->getFullModuleName();
1720 
1721   for (Decl *InitD :
1722        D->getASTContext().getModuleInitializers(D->getImportedModule()))
1723     dumpDeclRef(InitD, "initializer");
1724 }
1725 
1726 void TextNodeDumper::VisitPragmaCommentDecl(const PragmaCommentDecl *D) {
1727   OS << ' ';
1728   switch (D->getCommentKind()) {
1729   case PCK_Unknown:
1730     llvm_unreachable("unexpected pragma comment kind");
1731   case PCK_Compiler:
1732     OS << "compiler";
1733     break;
1734   case PCK_ExeStr:
1735     OS << "exestr";
1736     break;
1737   case PCK_Lib:
1738     OS << "lib";
1739     break;
1740   case PCK_Linker:
1741     OS << "linker";
1742     break;
1743   case PCK_User:
1744     OS << "user";
1745     break;
1746   }
1747   StringRef Arg = D->getArg();
1748   if (!Arg.empty())
1749     OS << " \"" << Arg << "\"";
1750 }
1751 
1752 void TextNodeDumper::VisitPragmaDetectMismatchDecl(
1753     const PragmaDetectMismatchDecl *D) {
1754   OS << " \"" << D->getName() << "\" \"" << D->getValue() << "\"";
1755 }
1756 
1757 void TextNodeDumper::VisitOMPExecutableDirective(
1758     const OMPExecutableDirective *D) {
1759   if (D->isStandaloneDirective())
1760     OS << " openmp_standalone_directive";
1761 }
1762 
1763 void TextNodeDumper::VisitOMPDeclareReductionDecl(
1764     const OMPDeclareReductionDecl *D) {
1765   dumpName(D);
1766   dumpType(D->getType());
1767   OS << " combiner";
1768   dumpPointer(D->getCombiner());
1769   if (const auto *Initializer = D->getInitializer()) {
1770     OS << " initializer";
1771     dumpPointer(Initializer);
1772     switch (D->getInitializerKind()) {
1773     case OMPDeclareReductionDecl::DirectInit:
1774       OS << " omp_priv = ";
1775       break;
1776     case OMPDeclareReductionDecl::CopyInit:
1777       OS << " omp_priv ()";
1778       break;
1779     case OMPDeclareReductionDecl::CallInit:
1780       break;
1781     }
1782   }
1783 }
1784 
1785 void TextNodeDumper::VisitOMPRequiresDecl(const OMPRequiresDecl *D) {
1786   for (const auto *C : D->clauselists()) {
1787     AddChild([=] {
1788       if (!C) {
1789         ColorScope Color(OS, ShowColors, NullColor);
1790         OS << "<<<NULL>>> OMPClause";
1791         return;
1792       }
1793       {
1794         ColorScope Color(OS, ShowColors, AttrColor);
1795         StringRef ClauseName(
1796             llvm::omp::getOpenMPClauseName(C->getClauseKind()));
1797         OS << "OMP" << ClauseName.substr(/*Start=*/0, /*N=*/1).upper()
1798            << ClauseName.drop_front() << "Clause";
1799       }
1800       dumpPointer(C);
1801       dumpSourceRange(SourceRange(C->getBeginLoc(), C->getEndLoc()));
1802     });
1803   }
1804 }
1805 
1806 void TextNodeDumper::VisitOMPCapturedExprDecl(const OMPCapturedExprDecl *D) {
1807   dumpName(D);
1808   dumpType(D->getType());
1809 }
1810 
1811 void TextNodeDumper::VisitNamespaceDecl(const NamespaceDecl *D) {
1812   dumpName(D);
1813   if (D->isInline())
1814     OS << " inline";
1815   if (!D->isOriginalNamespace())
1816     dumpDeclRef(D->getOriginalNamespace(), "original");
1817 }
1818 
1819 void TextNodeDumper::VisitUsingDirectiveDecl(const UsingDirectiveDecl *D) {
1820   OS << ' ';
1821   dumpBareDeclRef(D->getNominatedNamespace());
1822 }
1823 
1824 void TextNodeDumper::VisitNamespaceAliasDecl(const NamespaceAliasDecl *D) {
1825   dumpName(D);
1826   dumpDeclRef(D->getAliasedNamespace());
1827 }
1828 
1829 void TextNodeDumper::VisitTypeAliasDecl(const TypeAliasDecl *D) {
1830   dumpName(D);
1831   dumpType(D->getUnderlyingType());
1832 }
1833 
1834 void TextNodeDumper::VisitTypeAliasTemplateDecl(
1835     const TypeAliasTemplateDecl *D) {
1836   dumpName(D);
1837 }
1838 
1839 void TextNodeDumper::VisitCXXRecordDecl(const CXXRecordDecl *D) {
1840   VisitRecordDecl(D);
1841   if (!D->isCompleteDefinition())
1842     return;
1843 
1844   AddChild([=] {
1845     {
1846       ColorScope Color(OS, ShowColors, DeclKindNameColor);
1847       OS << "DefinitionData";
1848     }
1849 #define FLAG(fn, name)                                                         \
1850   if (D->fn())                                                                 \
1851     OS << " " #name;
1852     FLAG(isParsingBaseSpecifiers, parsing_base_specifiers);
1853 
1854     FLAG(isGenericLambda, generic);
1855     FLAG(isLambda, lambda);
1856 
1857     FLAG(isAnonymousStructOrUnion, is_anonymous);
1858     FLAG(canPassInRegisters, pass_in_registers);
1859     FLAG(isEmpty, empty);
1860     FLAG(isAggregate, aggregate);
1861     FLAG(isStandardLayout, standard_layout);
1862     FLAG(isTriviallyCopyable, trivially_copyable);
1863     FLAG(isPOD, pod);
1864     FLAG(isTrivial, trivial);
1865     FLAG(isPolymorphic, polymorphic);
1866     FLAG(isAbstract, abstract);
1867     FLAG(isLiteral, literal);
1868 
1869     FLAG(hasUserDeclaredConstructor, has_user_declared_ctor);
1870     FLAG(hasConstexprNonCopyMoveConstructor, has_constexpr_non_copy_move_ctor);
1871     FLAG(hasMutableFields, has_mutable_fields);
1872     FLAG(hasVariantMembers, has_variant_members);
1873     FLAG(allowConstDefaultInit, can_const_default_init);
1874 
1875     AddChild([=] {
1876       {
1877         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1878         OS << "DefaultConstructor";
1879       }
1880       FLAG(hasDefaultConstructor, exists);
1881       FLAG(hasTrivialDefaultConstructor, trivial);
1882       FLAG(hasNonTrivialDefaultConstructor, non_trivial);
1883       FLAG(hasUserProvidedDefaultConstructor, user_provided);
1884       FLAG(hasConstexprDefaultConstructor, constexpr);
1885       FLAG(needsImplicitDefaultConstructor, needs_implicit);
1886       FLAG(defaultedDefaultConstructorIsConstexpr, defaulted_is_constexpr);
1887     });
1888 
1889     AddChild([=] {
1890       {
1891         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1892         OS << "CopyConstructor";
1893       }
1894       FLAG(hasSimpleCopyConstructor, simple);
1895       FLAG(hasTrivialCopyConstructor, trivial);
1896       FLAG(hasNonTrivialCopyConstructor, non_trivial);
1897       FLAG(hasUserDeclaredCopyConstructor, user_declared);
1898       FLAG(hasCopyConstructorWithConstParam, has_const_param);
1899       FLAG(needsImplicitCopyConstructor, needs_implicit);
1900       FLAG(needsOverloadResolutionForCopyConstructor,
1901            needs_overload_resolution);
1902       if (!D->needsOverloadResolutionForCopyConstructor())
1903         FLAG(defaultedCopyConstructorIsDeleted, defaulted_is_deleted);
1904       FLAG(implicitCopyConstructorHasConstParam, implicit_has_const_param);
1905     });
1906 
1907     AddChild([=] {
1908       {
1909         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1910         OS << "MoveConstructor";
1911       }
1912       FLAG(hasMoveConstructor, exists);
1913       FLAG(hasSimpleMoveConstructor, simple);
1914       FLAG(hasTrivialMoveConstructor, trivial);
1915       FLAG(hasNonTrivialMoveConstructor, non_trivial);
1916       FLAG(hasUserDeclaredMoveConstructor, user_declared);
1917       FLAG(needsImplicitMoveConstructor, needs_implicit);
1918       FLAG(needsOverloadResolutionForMoveConstructor,
1919            needs_overload_resolution);
1920       if (!D->needsOverloadResolutionForMoveConstructor())
1921         FLAG(defaultedMoveConstructorIsDeleted, defaulted_is_deleted);
1922     });
1923 
1924     AddChild([=] {
1925       {
1926         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1927         OS << "CopyAssignment";
1928       }
1929       FLAG(hasSimpleCopyAssignment, simple);
1930       FLAG(hasTrivialCopyAssignment, trivial);
1931       FLAG(hasNonTrivialCopyAssignment, non_trivial);
1932       FLAG(hasCopyAssignmentWithConstParam, has_const_param);
1933       FLAG(hasUserDeclaredCopyAssignment, user_declared);
1934       FLAG(needsImplicitCopyAssignment, needs_implicit);
1935       FLAG(needsOverloadResolutionForCopyAssignment, needs_overload_resolution);
1936       FLAG(implicitCopyAssignmentHasConstParam, implicit_has_const_param);
1937     });
1938 
1939     AddChild([=] {
1940       {
1941         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1942         OS << "MoveAssignment";
1943       }
1944       FLAG(hasMoveAssignment, exists);
1945       FLAG(hasSimpleMoveAssignment, simple);
1946       FLAG(hasTrivialMoveAssignment, trivial);
1947       FLAG(hasNonTrivialMoveAssignment, non_trivial);
1948       FLAG(hasUserDeclaredMoveAssignment, user_declared);
1949       FLAG(needsImplicitMoveAssignment, needs_implicit);
1950       FLAG(needsOverloadResolutionForMoveAssignment, needs_overload_resolution);
1951     });
1952 
1953     AddChild([=] {
1954       {
1955         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1956         OS << "Destructor";
1957       }
1958       FLAG(hasSimpleDestructor, simple);
1959       FLAG(hasIrrelevantDestructor, irrelevant);
1960       FLAG(hasTrivialDestructor, trivial);
1961       FLAG(hasNonTrivialDestructor, non_trivial);
1962       FLAG(hasUserDeclaredDestructor, user_declared);
1963       FLAG(hasConstexprDestructor, constexpr);
1964       FLAG(needsImplicitDestructor, needs_implicit);
1965       FLAG(needsOverloadResolutionForDestructor, needs_overload_resolution);
1966       if (!D->needsOverloadResolutionForDestructor())
1967         FLAG(defaultedDestructorIsDeleted, defaulted_is_deleted);
1968     });
1969   });
1970 
1971   for (const auto &I : D->bases()) {
1972     AddChild([=] {
1973       if (I.isVirtual())
1974         OS << "virtual ";
1975       dumpAccessSpecifier(I.getAccessSpecifier());
1976       dumpType(I.getType());
1977       if (I.isPackExpansion())
1978         OS << "...";
1979     });
1980   }
1981 }
1982 
1983 void TextNodeDumper::VisitFunctionTemplateDecl(const FunctionTemplateDecl *D) {
1984   dumpName(D);
1985 }
1986 
1987 void TextNodeDumper::VisitClassTemplateDecl(const ClassTemplateDecl *D) {
1988   dumpName(D);
1989 }
1990 
1991 void TextNodeDumper::VisitVarTemplateDecl(const VarTemplateDecl *D) {
1992   dumpName(D);
1993 }
1994 
1995 void TextNodeDumper::VisitBuiltinTemplateDecl(const BuiltinTemplateDecl *D) {
1996   dumpName(D);
1997 }
1998 
1999 void TextNodeDumper::VisitTemplateTypeParmDecl(const TemplateTypeParmDecl *D) {
2000   if (const auto *TC = D->getTypeConstraint()) {
2001     OS << " ";
2002     dumpBareDeclRef(TC->getNamedConcept());
2003     if (TC->getNamedConcept() != TC->getFoundDecl()) {
2004       OS << " (";
2005       dumpBareDeclRef(TC->getFoundDecl());
2006       OS << ")";
2007     }
2008   } else if (D->wasDeclaredWithTypename())
2009     OS << " typename";
2010   else
2011     OS << " class";
2012   OS << " depth " << D->getDepth() << " index " << D->getIndex();
2013   if (D->isParameterPack())
2014     OS << " ...";
2015   dumpName(D);
2016 }
2017 
2018 void TextNodeDumper::VisitNonTypeTemplateParmDecl(
2019     const NonTypeTemplateParmDecl *D) {
2020   dumpType(D->getType());
2021   OS << " depth " << D->getDepth() << " index " << D->getIndex();
2022   if (D->isParameterPack())
2023     OS << " ...";
2024   dumpName(D);
2025 }
2026 
2027 void TextNodeDumper::VisitTemplateTemplateParmDecl(
2028     const TemplateTemplateParmDecl *D) {
2029   OS << " depth " << D->getDepth() << " index " << D->getIndex();
2030   if (D->isParameterPack())
2031     OS << " ...";
2032   dumpName(D);
2033 }
2034 
2035 void TextNodeDumper::VisitUsingDecl(const UsingDecl *D) {
2036   OS << ' ';
2037   if (D->getQualifier())
2038     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
2039   OS << D->getDeclName();
2040 }
2041 
2042 void TextNodeDumper::VisitUnresolvedUsingTypenameDecl(
2043     const UnresolvedUsingTypenameDecl *D) {
2044   OS << ' ';
2045   if (D->getQualifier())
2046     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
2047   OS << D->getDeclName();
2048 }
2049 
2050 void TextNodeDumper::VisitUnresolvedUsingValueDecl(
2051     const UnresolvedUsingValueDecl *D) {
2052   OS << ' ';
2053   if (D->getQualifier())
2054     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
2055   OS << D->getDeclName();
2056   dumpType(D->getType());
2057 }
2058 
2059 void TextNodeDumper::VisitUsingShadowDecl(const UsingShadowDecl *D) {
2060   OS << ' ';
2061   dumpBareDeclRef(D->getTargetDecl());
2062 }
2063 
2064 void TextNodeDumper::VisitConstructorUsingShadowDecl(
2065     const ConstructorUsingShadowDecl *D) {
2066   if (D->constructsVirtualBase())
2067     OS << " virtual";
2068 
2069   AddChild([=] {
2070     OS << "target ";
2071     dumpBareDeclRef(D->getTargetDecl());
2072   });
2073 
2074   AddChild([=] {
2075     OS << "nominated ";
2076     dumpBareDeclRef(D->getNominatedBaseClass());
2077     OS << ' ';
2078     dumpBareDeclRef(D->getNominatedBaseClassShadowDecl());
2079   });
2080 
2081   AddChild([=] {
2082     OS << "constructed ";
2083     dumpBareDeclRef(D->getConstructedBaseClass());
2084     OS << ' ';
2085     dumpBareDeclRef(D->getConstructedBaseClassShadowDecl());
2086   });
2087 }
2088 
2089 void TextNodeDumper::VisitLinkageSpecDecl(const LinkageSpecDecl *D) {
2090   switch (D->getLanguage()) {
2091   case LinkageSpecDecl::lang_c:
2092     OS << " C";
2093     break;
2094   case LinkageSpecDecl::lang_cxx:
2095     OS << " C++";
2096     break;
2097   }
2098 }
2099 
2100 void TextNodeDumper::VisitAccessSpecDecl(const AccessSpecDecl *D) {
2101   OS << ' ';
2102   dumpAccessSpecifier(D->getAccess());
2103 }
2104 
2105 void TextNodeDumper::VisitFriendDecl(const FriendDecl *D) {
2106   if (TypeSourceInfo *T = D->getFriendType())
2107     dumpType(T->getType());
2108 }
2109 
2110 void TextNodeDumper::VisitObjCIvarDecl(const ObjCIvarDecl *D) {
2111   dumpName(D);
2112   dumpType(D->getType());
2113   if (D->getSynthesize())
2114     OS << " synthesize";
2115 
2116   switch (D->getAccessControl()) {
2117   case ObjCIvarDecl::None:
2118     OS << " none";
2119     break;
2120   case ObjCIvarDecl::Private:
2121     OS << " private";
2122     break;
2123   case ObjCIvarDecl::Protected:
2124     OS << " protected";
2125     break;
2126   case ObjCIvarDecl::Public:
2127     OS << " public";
2128     break;
2129   case ObjCIvarDecl::Package:
2130     OS << " package";
2131     break;
2132   }
2133 }
2134 
2135 void TextNodeDumper::VisitObjCMethodDecl(const ObjCMethodDecl *D) {
2136   if (D->isInstanceMethod())
2137     OS << " -";
2138   else
2139     OS << " +";
2140   dumpName(D);
2141   dumpType(D->getReturnType());
2142 
2143   if (D->isVariadic())
2144     OS << " variadic";
2145 }
2146 
2147 void TextNodeDumper::VisitObjCTypeParamDecl(const ObjCTypeParamDecl *D) {
2148   dumpName(D);
2149   switch (D->getVariance()) {
2150   case ObjCTypeParamVariance::Invariant:
2151     break;
2152 
2153   case ObjCTypeParamVariance::Covariant:
2154     OS << " covariant";
2155     break;
2156 
2157   case ObjCTypeParamVariance::Contravariant:
2158     OS << " contravariant";
2159     break;
2160   }
2161 
2162   if (D->hasExplicitBound())
2163     OS << " bounded";
2164   dumpType(D->getUnderlyingType());
2165 }
2166 
2167 void TextNodeDumper::VisitObjCCategoryDecl(const ObjCCategoryDecl *D) {
2168   dumpName(D);
2169   dumpDeclRef(D->getClassInterface());
2170   dumpDeclRef(D->getImplementation());
2171   for (const auto *P : D->protocols())
2172     dumpDeclRef(P);
2173 }
2174 
2175 void TextNodeDumper::VisitObjCCategoryImplDecl(const ObjCCategoryImplDecl *D) {
2176   dumpName(D);
2177   dumpDeclRef(D->getClassInterface());
2178   dumpDeclRef(D->getCategoryDecl());
2179 }
2180 
2181 void TextNodeDumper::VisitObjCProtocolDecl(const ObjCProtocolDecl *D) {
2182   dumpName(D);
2183 
2184   for (const auto *Child : D->protocols())
2185     dumpDeclRef(Child);
2186 }
2187 
2188 void TextNodeDumper::VisitObjCInterfaceDecl(const ObjCInterfaceDecl *D) {
2189   dumpName(D);
2190   dumpDeclRef(D->getSuperClass(), "super");
2191 
2192   dumpDeclRef(D->getImplementation());
2193   for (const auto *Child : D->protocols())
2194     dumpDeclRef(Child);
2195 }
2196 
2197 void TextNodeDumper::VisitObjCImplementationDecl(
2198     const ObjCImplementationDecl *D) {
2199   dumpName(D);
2200   dumpDeclRef(D->getSuperClass(), "super");
2201   dumpDeclRef(D->getClassInterface());
2202 }
2203 
2204 void TextNodeDumper::VisitObjCCompatibleAliasDecl(
2205     const ObjCCompatibleAliasDecl *D) {
2206   dumpName(D);
2207   dumpDeclRef(D->getClassInterface());
2208 }
2209 
2210 void TextNodeDumper::VisitObjCPropertyDecl(const ObjCPropertyDecl *D) {
2211   dumpName(D);
2212   dumpType(D->getType());
2213 
2214   if (D->getPropertyImplementation() == ObjCPropertyDecl::Required)
2215     OS << " required";
2216   else if (D->getPropertyImplementation() == ObjCPropertyDecl::Optional)
2217     OS << " optional";
2218 
2219   ObjCPropertyAttribute::Kind Attrs = D->getPropertyAttributes();
2220   if (Attrs != ObjCPropertyAttribute::kind_noattr) {
2221     if (Attrs & ObjCPropertyAttribute::kind_readonly)
2222       OS << " readonly";
2223     if (Attrs & ObjCPropertyAttribute::kind_assign)
2224       OS << " assign";
2225     if (Attrs & ObjCPropertyAttribute::kind_readwrite)
2226       OS << " readwrite";
2227     if (Attrs & ObjCPropertyAttribute::kind_retain)
2228       OS << " retain";
2229     if (Attrs & ObjCPropertyAttribute::kind_copy)
2230       OS << " copy";
2231     if (Attrs & ObjCPropertyAttribute::kind_nonatomic)
2232       OS << " nonatomic";
2233     if (Attrs & ObjCPropertyAttribute::kind_atomic)
2234       OS << " atomic";
2235     if (Attrs & ObjCPropertyAttribute::kind_weak)
2236       OS << " weak";
2237     if (Attrs & ObjCPropertyAttribute::kind_strong)
2238       OS << " strong";
2239     if (Attrs & ObjCPropertyAttribute::kind_unsafe_unretained)
2240       OS << " unsafe_unretained";
2241     if (Attrs & ObjCPropertyAttribute::kind_class)
2242       OS << " class";
2243     if (Attrs & ObjCPropertyAttribute::kind_direct)
2244       OS << " direct";
2245     if (Attrs & ObjCPropertyAttribute::kind_getter)
2246       dumpDeclRef(D->getGetterMethodDecl(), "getter");
2247     if (Attrs & ObjCPropertyAttribute::kind_setter)
2248       dumpDeclRef(D->getSetterMethodDecl(), "setter");
2249   }
2250 }
2251 
2252 void TextNodeDumper::VisitObjCPropertyImplDecl(const ObjCPropertyImplDecl *D) {
2253   dumpName(D->getPropertyDecl());
2254   if (D->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize)
2255     OS << " synthesize";
2256   else
2257     OS << " dynamic";
2258   dumpDeclRef(D->getPropertyDecl());
2259   dumpDeclRef(D->getPropertyIvarDecl());
2260 }
2261 
2262 void TextNodeDumper::VisitBlockDecl(const BlockDecl *D) {
2263   if (D->isVariadic())
2264     OS << " variadic";
2265 
2266   if (D->capturesCXXThis())
2267     OS << " captures_this";
2268 }
2269 
2270 void TextNodeDumper::VisitConceptDecl(const ConceptDecl *D) {
2271   dumpName(D);
2272 }
2273