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   if (Node->isSideEntry())
927     OS << " side_entry";
928 }
929 
930 void TextNodeDumper::VisitGotoStmt(const GotoStmt *Node) {
931   OS << " '" << Node->getLabel()->getName() << "'";
932   dumpPointer(Node->getLabel());
933 }
934 
935 void TextNodeDumper::VisitCaseStmt(const CaseStmt *Node) {
936   if (Node->caseStmtIsGNURange())
937     OS << " gnu_range";
938 }
939 
940 void TextNodeDumper::VisitConstantExpr(const ConstantExpr *Node) {
941   if (Node->hasAPValueResult())
942     AddChild("value",
943              [=] { Visit(Node->getAPValueResult(), Node->getType()); });
944 }
945 
946 void TextNodeDumper::VisitCallExpr(const CallExpr *Node) {
947   if (Node->usesADL())
948     OS << " adl";
949   if (Node->hasStoredFPFeatures())
950     printFPOptions(Node->getFPFeatures());
951 }
952 
953 void TextNodeDumper::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *Node) {
954   const char *OperatorSpelling = clang::getOperatorSpelling(Node->getOperator());
955   if (OperatorSpelling)
956     OS << " '" << OperatorSpelling << "'";
957 
958   VisitCallExpr(Node);
959 }
960 
961 void TextNodeDumper::VisitCastExpr(const CastExpr *Node) {
962   OS << " <";
963   {
964     ColorScope Color(OS, ShowColors, CastColor);
965     OS << Node->getCastKindName();
966   }
967   dumpBasePath(OS, Node);
968   OS << ">";
969   if (Node->hasStoredFPFeatures())
970     printFPOptions(Node->getFPFeatures());
971 }
972 
973 void TextNodeDumper::VisitImplicitCastExpr(const ImplicitCastExpr *Node) {
974   VisitCastExpr(Node);
975   if (Node->isPartOfExplicitCast())
976     OS << " part_of_explicit_cast";
977 }
978 
979 void TextNodeDumper::VisitDeclRefExpr(const DeclRefExpr *Node) {
980   OS << " ";
981   dumpBareDeclRef(Node->getDecl());
982   if (Node->getDecl() != Node->getFoundDecl()) {
983     OS << " (";
984     dumpBareDeclRef(Node->getFoundDecl());
985     OS << ")";
986   }
987   switch (Node->isNonOdrUse()) {
988   case NOUR_None: break;
989   case NOUR_Unevaluated: OS << " non_odr_use_unevaluated"; break;
990   case NOUR_Constant: OS << " non_odr_use_constant"; break;
991   case NOUR_Discarded: OS << " non_odr_use_discarded"; break;
992   }
993 }
994 
995 void TextNodeDumper::VisitUnresolvedLookupExpr(
996     const UnresolvedLookupExpr *Node) {
997   OS << " (";
998   if (!Node->requiresADL())
999     OS << "no ";
1000   OS << "ADL) = '" << Node->getName() << '\'';
1001 
1002   UnresolvedLookupExpr::decls_iterator I = Node->decls_begin(),
1003                                        E = Node->decls_end();
1004   if (I == E)
1005     OS << " empty";
1006   for (; I != E; ++I)
1007     dumpPointer(*I);
1008 }
1009 
1010 void TextNodeDumper::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *Node) {
1011   {
1012     ColorScope Color(OS, ShowColors, DeclKindNameColor);
1013     OS << " " << Node->getDecl()->getDeclKindName() << "Decl";
1014   }
1015   OS << "='" << *Node->getDecl() << "'";
1016   dumpPointer(Node->getDecl());
1017   if (Node->isFreeIvar())
1018     OS << " isFreeIvar";
1019 }
1020 
1021 void TextNodeDumper::VisitSYCLUniqueStableNameExpr(
1022     const SYCLUniqueStableNameExpr *Node) {
1023   dumpType(Node->getTypeSourceInfo()->getType());
1024 }
1025 
1026 void TextNodeDumper::VisitPredefinedExpr(const PredefinedExpr *Node) {
1027   OS << " " << PredefinedExpr::getIdentKindName(Node->getIdentKind());
1028 }
1029 
1030 void TextNodeDumper::VisitCharacterLiteral(const CharacterLiteral *Node) {
1031   ColorScope Color(OS, ShowColors, ValueColor);
1032   OS << " " << Node->getValue();
1033 }
1034 
1035 void TextNodeDumper::VisitIntegerLiteral(const IntegerLiteral *Node) {
1036   bool isSigned = Node->getType()->isSignedIntegerType();
1037   ColorScope Color(OS, ShowColors, ValueColor);
1038   OS << " " << Node->getValue().toString(10, isSigned);
1039 }
1040 
1041 void TextNodeDumper::VisitFixedPointLiteral(const FixedPointLiteral *Node) {
1042   ColorScope Color(OS, ShowColors, ValueColor);
1043   OS << " " << Node->getValueAsString(/*Radix=*/10);
1044 }
1045 
1046 void TextNodeDumper::VisitFloatingLiteral(const FloatingLiteral *Node) {
1047   ColorScope Color(OS, ShowColors, ValueColor);
1048   OS << " " << Node->getValueAsApproximateDouble();
1049 }
1050 
1051 void TextNodeDumper::VisitStringLiteral(const StringLiteral *Str) {
1052   ColorScope Color(OS, ShowColors, ValueColor);
1053   OS << " ";
1054   Str->outputString(OS);
1055 }
1056 
1057 void TextNodeDumper::VisitInitListExpr(const InitListExpr *ILE) {
1058   if (auto *Field = ILE->getInitializedFieldInUnion()) {
1059     OS << " field ";
1060     dumpBareDeclRef(Field);
1061   }
1062 }
1063 
1064 void TextNodeDumper::VisitGenericSelectionExpr(const GenericSelectionExpr *E) {
1065   if (E->isResultDependent())
1066     OS << " result_dependent";
1067 }
1068 
1069 void TextNodeDumper::VisitUnaryOperator(const UnaryOperator *Node) {
1070   OS << " " << (Node->isPostfix() ? "postfix" : "prefix") << " '"
1071      << UnaryOperator::getOpcodeStr(Node->getOpcode()) << "'";
1072   if (!Node->canOverflow())
1073     OS << " cannot overflow";
1074   if (Node->hasStoredFPFeatures())
1075     printFPOptions(Node->getStoredFPFeatures());
1076 }
1077 
1078 void TextNodeDumper::VisitUnaryExprOrTypeTraitExpr(
1079     const UnaryExprOrTypeTraitExpr *Node) {
1080   OS << " " << getTraitSpelling(Node->getKind());
1081 
1082   if (Node->isArgumentType())
1083     dumpType(Node->getArgumentType());
1084 }
1085 
1086 void TextNodeDumper::VisitMemberExpr(const MemberExpr *Node) {
1087   OS << " " << (Node->isArrow() ? "->" : ".") << *Node->getMemberDecl();
1088   dumpPointer(Node->getMemberDecl());
1089   switch (Node->isNonOdrUse()) {
1090   case NOUR_None: break;
1091   case NOUR_Unevaluated: OS << " non_odr_use_unevaluated"; break;
1092   case NOUR_Constant: OS << " non_odr_use_constant"; break;
1093   case NOUR_Discarded: OS << " non_odr_use_discarded"; break;
1094   }
1095 }
1096 
1097 void TextNodeDumper::VisitExtVectorElementExpr(
1098     const ExtVectorElementExpr *Node) {
1099   OS << " " << Node->getAccessor().getNameStart();
1100 }
1101 
1102 void TextNodeDumper::VisitBinaryOperator(const BinaryOperator *Node) {
1103   OS << " '" << BinaryOperator::getOpcodeStr(Node->getOpcode()) << "'";
1104   if (Node->hasStoredFPFeatures())
1105     printFPOptions(Node->getStoredFPFeatures());
1106 }
1107 
1108 void TextNodeDumper::VisitCompoundAssignOperator(
1109     const CompoundAssignOperator *Node) {
1110   OS << " '" << BinaryOperator::getOpcodeStr(Node->getOpcode())
1111      << "' ComputeLHSTy=";
1112   dumpBareType(Node->getComputationLHSType());
1113   OS << " ComputeResultTy=";
1114   dumpBareType(Node->getComputationResultType());
1115   if (Node->hasStoredFPFeatures())
1116     printFPOptions(Node->getStoredFPFeatures());
1117 }
1118 
1119 void TextNodeDumper::VisitAddrLabelExpr(const AddrLabelExpr *Node) {
1120   OS << " " << Node->getLabel()->getName();
1121   dumpPointer(Node->getLabel());
1122 }
1123 
1124 void TextNodeDumper::VisitCXXNamedCastExpr(const CXXNamedCastExpr *Node) {
1125   OS << " " << Node->getCastName() << "<"
1126      << Node->getTypeAsWritten().getAsString() << ">"
1127      << " <" << Node->getCastKindName();
1128   dumpBasePath(OS, Node);
1129   OS << ">";
1130 }
1131 
1132 void TextNodeDumper::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *Node) {
1133   OS << " " << (Node->getValue() ? "true" : "false");
1134 }
1135 
1136 void TextNodeDumper::VisitCXXThisExpr(const CXXThisExpr *Node) {
1137   if (Node->isImplicit())
1138     OS << " implicit";
1139   OS << " this";
1140 }
1141 
1142 void TextNodeDumper::VisitCXXFunctionalCastExpr(
1143     const CXXFunctionalCastExpr *Node) {
1144   OS << " functional cast to " << Node->getTypeAsWritten().getAsString() << " <"
1145      << Node->getCastKindName() << ">";
1146   if (Node->hasStoredFPFeatures())
1147     printFPOptions(Node->getFPFeatures());
1148 }
1149 
1150 void TextNodeDumper::VisitCXXStaticCastExpr(const CXXStaticCastExpr *Node) {
1151   VisitCXXNamedCastExpr(Node);
1152   if (Node->hasStoredFPFeatures())
1153     printFPOptions(Node->getFPFeatures());
1154 }
1155 
1156 void TextNodeDumper::VisitCXXUnresolvedConstructExpr(
1157     const CXXUnresolvedConstructExpr *Node) {
1158   dumpType(Node->getTypeAsWritten());
1159   if (Node->isListInitialization())
1160     OS << " list";
1161 }
1162 
1163 void TextNodeDumper::VisitCXXConstructExpr(const CXXConstructExpr *Node) {
1164   CXXConstructorDecl *Ctor = Node->getConstructor();
1165   dumpType(Ctor->getType());
1166   if (Node->isElidable())
1167     OS << " elidable";
1168   if (Node->isListInitialization())
1169     OS << " list";
1170   if (Node->isStdInitListInitialization())
1171     OS << " std::initializer_list";
1172   if (Node->requiresZeroInitialization())
1173     OS << " zeroing";
1174 }
1175 
1176 void TextNodeDumper::VisitCXXBindTemporaryExpr(
1177     const CXXBindTemporaryExpr *Node) {
1178   OS << " (CXXTemporary";
1179   dumpPointer(Node);
1180   OS << ")";
1181 }
1182 
1183 void TextNodeDumper::VisitCXXNewExpr(const CXXNewExpr *Node) {
1184   if (Node->isGlobalNew())
1185     OS << " global";
1186   if (Node->isArray())
1187     OS << " array";
1188   if (Node->getOperatorNew()) {
1189     OS << ' ';
1190     dumpBareDeclRef(Node->getOperatorNew());
1191   }
1192   // We could dump the deallocation function used in case of error, but it's
1193   // usually not that interesting.
1194 }
1195 
1196 void TextNodeDumper::VisitCXXDeleteExpr(const CXXDeleteExpr *Node) {
1197   if (Node->isGlobalDelete())
1198     OS << " global";
1199   if (Node->isArrayForm())
1200     OS << " array";
1201   if (Node->getOperatorDelete()) {
1202     OS << ' ';
1203     dumpBareDeclRef(Node->getOperatorDelete());
1204   }
1205 }
1206 
1207 void TextNodeDumper::VisitTypeTraitExpr(const TypeTraitExpr *Node) {
1208   OS << " " << getTraitSpelling(Node->getTrait());
1209 }
1210 
1211 void TextNodeDumper::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *Node) {
1212   OS << " " << getTraitSpelling(Node->getTrait());
1213 }
1214 
1215 void TextNodeDumper::VisitExpressionTraitExpr(const ExpressionTraitExpr *Node) {
1216   OS << " " << getTraitSpelling(Node->getTrait());
1217 }
1218 
1219 void TextNodeDumper::VisitMaterializeTemporaryExpr(
1220     const MaterializeTemporaryExpr *Node) {
1221   if (const ValueDecl *VD = Node->getExtendingDecl()) {
1222     OS << " extended by ";
1223     dumpBareDeclRef(VD);
1224   }
1225 }
1226 
1227 void TextNodeDumper::VisitExprWithCleanups(const ExprWithCleanups *Node) {
1228   for (unsigned i = 0, e = Node->getNumObjects(); i != e; ++i)
1229     dumpCleanupObject(Node->getObject(i));
1230 }
1231 
1232 void TextNodeDumper::VisitSizeOfPackExpr(const SizeOfPackExpr *Node) {
1233   dumpPointer(Node->getPack());
1234   dumpName(Node->getPack());
1235 }
1236 
1237 void TextNodeDumper::VisitCXXDependentScopeMemberExpr(
1238     const CXXDependentScopeMemberExpr *Node) {
1239   OS << " " << (Node->isArrow() ? "->" : ".") << Node->getMember();
1240 }
1241 
1242 void TextNodeDumper::VisitObjCMessageExpr(const ObjCMessageExpr *Node) {
1243   OS << " selector=";
1244   Node->getSelector().print(OS);
1245   switch (Node->getReceiverKind()) {
1246   case ObjCMessageExpr::Instance:
1247     break;
1248 
1249   case ObjCMessageExpr::Class:
1250     OS << " class=";
1251     dumpBareType(Node->getClassReceiver());
1252     break;
1253 
1254   case ObjCMessageExpr::SuperInstance:
1255     OS << " super (instance)";
1256     break;
1257 
1258   case ObjCMessageExpr::SuperClass:
1259     OS << " super (class)";
1260     break;
1261   }
1262 }
1263 
1264 void TextNodeDumper::VisitObjCBoxedExpr(const ObjCBoxedExpr *Node) {
1265   if (auto *BoxingMethod = Node->getBoxingMethod()) {
1266     OS << " selector=";
1267     BoxingMethod->getSelector().print(OS);
1268   }
1269 }
1270 
1271 void TextNodeDumper::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *Node) {
1272   if (!Node->getCatchParamDecl())
1273     OS << " catch all";
1274 }
1275 
1276 void TextNodeDumper::VisitObjCEncodeExpr(const ObjCEncodeExpr *Node) {
1277   dumpType(Node->getEncodedType());
1278 }
1279 
1280 void TextNodeDumper::VisitObjCSelectorExpr(const ObjCSelectorExpr *Node) {
1281   OS << " ";
1282   Node->getSelector().print(OS);
1283 }
1284 
1285 void TextNodeDumper::VisitObjCProtocolExpr(const ObjCProtocolExpr *Node) {
1286   OS << ' ' << *Node->getProtocol();
1287 }
1288 
1289 void TextNodeDumper::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *Node) {
1290   if (Node->isImplicitProperty()) {
1291     OS << " Kind=MethodRef Getter=\"";
1292     if (Node->getImplicitPropertyGetter())
1293       Node->getImplicitPropertyGetter()->getSelector().print(OS);
1294     else
1295       OS << "(null)";
1296 
1297     OS << "\" Setter=\"";
1298     if (ObjCMethodDecl *Setter = Node->getImplicitPropertySetter())
1299       Setter->getSelector().print(OS);
1300     else
1301       OS << "(null)";
1302     OS << "\"";
1303   } else {
1304     OS << " Kind=PropertyRef Property=\"" << *Node->getExplicitProperty()
1305        << '"';
1306   }
1307 
1308   if (Node->isSuperReceiver())
1309     OS << " super";
1310 
1311   OS << " Messaging=";
1312   if (Node->isMessagingGetter() && Node->isMessagingSetter())
1313     OS << "Getter&Setter";
1314   else if (Node->isMessagingGetter())
1315     OS << "Getter";
1316   else if (Node->isMessagingSetter())
1317     OS << "Setter";
1318 }
1319 
1320 void TextNodeDumper::VisitObjCSubscriptRefExpr(
1321     const ObjCSubscriptRefExpr *Node) {
1322   if (Node->isArraySubscriptRefExpr())
1323     OS << " Kind=ArraySubscript GetterForArray=\"";
1324   else
1325     OS << " Kind=DictionarySubscript GetterForDictionary=\"";
1326   if (Node->getAtIndexMethodDecl())
1327     Node->getAtIndexMethodDecl()->getSelector().print(OS);
1328   else
1329     OS << "(null)";
1330 
1331   if (Node->isArraySubscriptRefExpr())
1332     OS << "\" SetterForArray=\"";
1333   else
1334     OS << "\" SetterForDictionary=\"";
1335   if (Node->setAtIndexMethodDecl())
1336     Node->setAtIndexMethodDecl()->getSelector().print(OS);
1337   else
1338     OS << "(null)";
1339 }
1340 
1341 void TextNodeDumper::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *Node) {
1342   OS << " " << (Node->getValue() ? "__objc_yes" : "__objc_no");
1343 }
1344 
1345 void TextNodeDumper::VisitOMPIteratorExpr(const OMPIteratorExpr *Node) {
1346   OS << " ";
1347   for (unsigned I = 0, E = Node->numOfIterators(); I < E; ++I) {
1348     Visit(Node->getIteratorDecl(I));
1349     OS << " = ";
1350     const OMPIteratorExpr::IteratorRange Range = Node->getIteratorRange(I);
1351     OS << " begin ";
1352     Visit(Range.Begin);
1353     OS << " end ";
1354     Visit(Range.End);
1355     if (Range.Step) {
1356       OS << " step ";
1357       Visit(Range.Step);
1358     }
1359   }
1360 }
1361 
1362 void TextNodeDumper::VisitConceptSpecializationExpr(
1363     const ConceptSpecializationExpr *Node) {
1364   OS << " ";
1365   dumpBareDeclRef(Node->getFoundDecl());
1366 }
1367 
1368 void TextNodeDumper::VisitRValueReferenceType(const ReferenceType *T) {
1369   if (T->isSpelledAsLValue())
1370     OS << " written as lvalue reference";
1371 }
1372 
1373 void TextNodeDumper::VisitArrayType(const ArrayType *T) {
1374   switch (T->getSizeModifier()) {
1375   case ArrayType::Normal:
1376     break;
1377   case ArrayType::Static:
1378     OS << " static";
1379     break;
1380   case ArrayType::Star:
1381     OS << " *";
1382     break;
1383   }
1384   OS << " " << T->getIndexTypeQualifiers().getAsString();
1385 }
1386 
1387 void TextNodeDumper::VisitConstantArrayType(const ConstantArrayType *T) {
1388   OS << " " << T->getSize();
1389   VisitArrayType(T);
1390 }
1391 
1392 void TextNodeDumper::VisitVariableArrayType(const VariableArrayType *T) {
1393   OS << " ";
1394   dumpSourceRange(T->getBracketsRange());
1395   VisitArrayType(T);
1396 }
1397 
1398 void TextNodeDumper::VisitDependentSizedArrayType(
1399     const DependentSizedArrayType *T) {
1400   VisitArrayType(T);
1401   OS << " ";
1402   dumpSourceRange(T->getBracketsRange());
1403 }
1404 
1405 void TextNodeDumper::VisitDependentSizedExtVectorType(
1406     const DependentSizedExtVectorType *T) {
1407   OS << " ";
1408   dumpLocation(T->getAttributeLoc());
1409 }
1410 
1411 void TextNodeDumper::VisitVectorType(const VectorType *T) {
1412   switch (T->getVectorKind()) {
1413   case VectorType::GenericVector:
1414     break;
1415   case VectorType::AltiVecVector:
1416     OS << " altivec";
1417     break;
1418   case VectorType::AltiVecPixel:
1419     OS << " altivec pixel";
1420     break;
1421   case VectorType::AltiVecBool:
1422     OS << " altivec bool";
1423     break;
1424   case VectorType::NeonVector:
1425     OS << " neon";
1426     break;
1427   case VectorType::NeonPolyVector:
1428     OS << " neon poly";
1429     break;
1430   case VectorType::SveFixedLengthDataVector:
1431     OS << " fixed-length sve data vector";
1432     break;
1433   case VectorType::SveFixedLengthPredicateVector:
1434     OS << " fixed-length sve predicate vector";
1435     break;
1436   }
1437   OS << " " << T->getNumElements();
1438 }
1439 
1440 void TextNodeDumper::VisitFunctionType(const FunctionType *T) {
1441   auto EI = T->getExtInfo();
1442   if (EI.getNoReturn())
1443     OS << " noreturn";
1444   if (EI.getProducesResult())
1445     OS << " produces_result";
1446   if (EI.getHasRegParm())
1447     OS << " regparm " << EI.getRegParm();
1448   OS << " " << FunctionType::getNameForCallConv(EI.getCC());
1449 }
1450 
1451 void TextNodeDumper::VisitFunctionProtoType(const FunctionProtoType *T) {
1452   auto EPI = T->getExtProtoInfo();
1453   if (EPI.HasTrailingReturn)
1454     OS << " trailing_return";
1455   if (T->isConst())
1456     OS << " const";
1457   if (T->isVolatile())
1458     OS << " volatile";
1459   if (T->isRestrict())
1460     OS << " restrict";
1461   if (T->getExtProtoInfo().Variadic)
1462     OS << " variadic";
1463   switch (EPI.RefQualifier) {
1464   case RQ_None:
1465     break;
1466   case RQ_LValue:
1467     OS << " &";
1468     break;
1469   case RQ_RValue:
1470     OS << " &&";
1471     break;
1472   }
1473   // FIXME: Exception specification.
1474   // FIXME: Consumed parameters.
1475   VisitFunctionType(T);
1476 }
1477 
1478 void TextNodeDumper::VisitUnresolvedUsingType(const UnresolvedUsingType *T) {
1479   dumpDeclRef(T->getDecl());
1480 }
1481 
1482 void TextNodeDumper::VisitTypedefType(const TypedefType *T) {
1483   dumpDeclRef(T->getDecl());
1484 }
1485 
1486 void TextNodeDumper::VisitUnaryTransformType(const UnaryTransformType *T) {
1487   switch (T->getUTTKind()) {
1488   case UnaryTransformType::EnumUnderlyingType:
1489     OS << " underlying_type";
1490     break;
1491   }
1492 }
1493 
1494 void TextNodeDumper::VisitTagType(const TagType *T) {
1495   dumpDeclRef(T->getDecl());
1496 }
1497 
1498 void TextNodeDumper::VisitTemplateTypeParmType(const TemplateTypeParmType *T) {
1499   OS << " depth " << T->getDepth() << " index " << T->getIndex();
1500   if (T->isParameterPack())
1501     OS << " pack";
1502   dumpDeclRef(T->getDecl());
1503 }
1504 
1505 void TextNodeDumper::VisitAutoType(const AutoType *T) {
1506   if (T->isDecltypeAuto())
1507     OS << " decltype(auto)";
1508   if (!T->isDeduced())
1509     OS << " undeduced";
1510   if (T->isConstrained()) {
1511     dumpDeclRef(T->getTypeConstraintConcept());
1512     for (const auto &Arg : T->getTypeConstraintArguments())
1513       VisitTemplateArgument(Arg);
1514   }
1515 }
1516 
1517 void TextNodeDumper::VisitTemplateSpecializationType(
1518     const TemplateSpecializationType *T) {
1519   if (T->isTypeAlias())
1520     OS << " alias";
1521   OS << " ";
1522   T->getTemplateName().dump(OS);
1523 }
1524 
1525 void TextNodeDumper::VisitInjectedClassNameType(
1526     const InjectedClassNameType *T) {
1527   dumpDeclRef(T->getDecl());
1528 }
1529 
1530 void TextNodeDumper::VisitObjCInterfaceType(const ObjCInterfaceType *T) {
1531   dumpDeclRef(T->getDecl());
1532 }
1533 
1534 void TextNodeDumper::VisitPackExpansionType(const PackExpansionType *T) {
1535   if (auto N = T->getNumExpansions())
1536     OS << " expansions " << *N;
1537 }
1538 
1539 void TextNodeDumper::VisitLabelDecl(const LabelDecl *D) { dumpName(D); }
1540 
1541 void TextNodeDumper::VisitTypedefDecl(const TypedefDecl *D) {
1542   dumpName(D);
1543   dumpType(D->getUnderlyingType());
1544   if (D->isModulePrivate())
1545     OS << " __module_private__";
1546 }
1547 
1548 void TextNodeDumper::VisitEnumDecl(const EnumDecl *D) {
1549   if (D->isScoped()) {
1550     if (D->isScopedUsingClassTag())
1551       OS << " class";
1552     else
1553       OS << " struct";
1554   }
1555   dumpName(D);
1556   if (D->isModulePrivate())
1557     OS << " __module_private__";
1558   if (D->isFixed())
1559     dumpType(D->getIntegerType());
1560 }
1561 
1562 void TextNodeDumper::VisitRecordDecl(const RecordDecl *D) {
1563   OS << ' ' << D->getKindName();
1564   dumpName(D);
1565   if (D->isModulePrivate())
1566     OS << " __module_private__";
1567   if (D->isCompleteDefinition())
1568     OS << " definition";
1569 }
1570 
1571 void TextNodeDumper::VisitEnumConstantDecl(const EnumConstantDecl *D) {
1572   dumpName(D);
1573   dumpType(D->getType());
1574 }
1575 
1576 void TextNodeDumper::VisitIndirectFieldDecl(const IndirectFieldDecl *D) {
1577   dumpName(D);
1578   dumpType(D->getType());
1579 
1580   for (const auto *Child : D->chain())
1581     dumpDeclRef(Child);
1582 }
1583 
1584 void TextNodeDumper::VisitFunctionDecl(const FunctionDecl *D) {
1585   dumpName(D);
1586   dumpType(D->getType());
1587 
1588   StorageClass SC = D->getStorageClass();
1589   if (SC != SC_None)
1590     OS << ' ' << VarDecl::getStorageClassSpecifierString(SC);
1591   if (D->isInlineSpecified())
1592     OS << " inline";
1593   if (D->isVirtualAsWritten())
1594     OS << " virtual";
1595   if (D->isModulePrivate())
1596     OS << " __module_private__";
1597 
1598   if (D->isPure())
1599     OS << " pure";
1600   if (D->isDefaulted()) {
1601     OS << " default";
1602     if (D->isDeleted())
1603       OS << "_delete";
1604   }
1605   if (D->isDeletedAsWritten())
1606     OS << " delete";
1607   if (D->isTrivial())
1608     OS << " trivial";
1609 
1610   if (const auto *FPT = D->getType()->getAs<FunctionProtoType>()) {
1611     FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo();
1612     switch (EPI.ExceptionSpec.Type) {
1613     default:
1614       break;
1615     case EST_Unevaluated:
1616       OS << " noexcept-unevaluated " << EPI.ExceptionSpec.SourceDecl;
1617       break;
1618     case EST_Uninstantiated:
1619       OS << " noexcept-uninstantiated " << EPI.ExceptionSpec.SourceTemplate;
1620       break;
1621     }
1622   }
1623 
1624   if (const auto *MD = dyn_cast<CXXMethodDecl>(D)) {
1625     if (MD->size_overridden_methods() != 0) {
1626       auto dumpOverride = [=](const CXXMethodDecl *D) {
1627         SplitQualType T_split = D->getType().split();
1628         OS << D << " " << D->getParent()->getName() << "::" << D->getDeclName()
1629            << " '" << QualType::getAsString(T_split, PrintPolicy) << "'";
1630       };
1631 
1632       AddChild([=] {
1633         auto Overrides = MD->overridden_methods();
1634         OS << "Overrides: [ ";
1635         dumpOverride(*Overrides.begin());
1636         for (const auto *Override :
1637              llvm::make_range(Overrides.begin() + 1, Overrides.end())) {
1638           OS << ", ";
1639           dumpOverride(Override);
1640         }
1641         OS << " ]";
1642       });
1643     }
1644   }
1645 
1646   // Since NumParams comes from the FunctionProtoType of the FunctionDecl and
1647   // the Params are set later, it is possible for a dump during debugging to
1648   // encounter a FunctionDecl that has been created but hasn't been assigned
1649   // ParmVarDecls yet.
1650   if (!D->param_empty() && !D->param_begin())
1651     OS << " <<<NULL params x " << D->getNumParams() << ">>>";
1652 }
1653 
1654 void TextNodeDumper::VisitLifetimeExtendedTemporaryDecl(
1655     const LifetimeExtendedTemporaryDecl *D) {
1656   OS << " extended by ";
1657   dumpBareDeclRef(D->getExtendingDecl());
1658   OS << " mangling ";
1659   {
1660     ColorScope Color(OS, ShowColors, ValueColor);
1661     OS << D->getManglingNumber();
1662   }
1663 }
1664 
1665 void TextNodeDumper::VisitFieldDecl(const FieldDecl *D) {
1666   dumpName(D);
1667   dumpType(D->getType());
1668   if (D->isMutable())
1669     OS << " mutable";
1670   if (D->isModulePrivate())
1671     OS << " __module_private__";
1672 }
1673 
1674 void TextNodeDumper::VisitVarDecl(const VarDecl *D) {
1675   dumpName(D);
1676   dumpType(D->getType());
1677   StorageClass SC = D->getStorageClass();
1678   if (SC != SC_None)
1679     OS << ' ' << VarDecl::getStorageClassSpecifierString(SC);
1680   switch (D->getTLSKind()) {
1681   case VarDecl::TLS_None:
1682     break;
1683   case VarDecl::TLS_Static:
1684     OS << " tls";
1685     break;
1686   case VarDecl::TLS_Dynamic:
1687     OS << " tls_dynamic";
1688     break;
1689   }
1690   if (D->isModulePrivate())
1691     OS << " __module_private__";
1692   if (D->isNRVOVariable())
1693     OS << " nrvo";
1694   if (D->isInline())
1695     OS << " inline";
1696   if (D->isConstexpr())
1697     OS << " constexpr";
1698   if (D->hasInit()) {
1699     switch (D->getInitStyle()) {
1700     case VarDecl::CInit:
1701       OS << " cinit";
1702       break;
1703     case VarDecl::CallInit:
1704       OS << " callinit";
1705       break;
1706     case VarDecl::ListInit:
1707       OS << " listinit";
1708       break;
1709     }
1710   }
1711   if (D->needsDestruction(D->getASTContext()))
1712     OS << " destroyed";
1713   if (D->isParameterPack())
1714     OS << " pack";
1715 
1716   if (D->hasInit()) {
1717     const Expr *E = D->getInit();
1718     // Only dump the value of constexpr VarDecls for now.
1719     if (E && !E->isValueDependent() && D->isConstexpr()) {
1720       const APValue *Value = D->evaluateValue();
1721       if (Value)
1722         AddChild("value", [=] { Visit(*Value, E->getType()); });
1723     }
1724   }
1725 }
1726 
1727 void TextNodeDumper::VisitBindingDecl(const BindingDecl *D) {
1728   dumpName(D);
1729   dumpType(D->getType());
1730 }
1731 
1732 void TextNodeDumper::VisitCapturedDecl(const CapturedDecl *D) {
1733   if (D->isNothrow())
1734     OS << " nothrow";
1735 }
1736 
1737 void TextNodeDumper::VisitImportDecl(const ImportDecl *D) {
1738   OS << ' ' << D->getImportedModule()->getFullModuleName();
1739 
1740   for (Decl *InitD :
1741        D->getASTContext().getModuleInitializers(D->getImportedModule()))
1742     dumpDeclRef(InitD, "initializer");
1743 }
1744 
1745 void TextNodeDumper::VisitPragmaCommentDecl(const PragmaCommentDecl *D) {
1746   OS << ' ';
1747   switch (D->getCommentKind()) {
1748   case PCK_Unknown:
1749     llvm_unreachable("unexpected pragma comment kind");
1750   case PCK_Compiler:
1751     OS << "compiler";
1752     break;
1753   case PCK_ExeStr:
1754     OS << "exestr";
1755     break;
1756   case PCK_Lib:
1757     OS << "lib";
1758     break;
1759   case PCK_Linker:
1760     OS << "linker";
1761     break;
1762   case PCK_User:
1763     OS << "user";
1764     break;
1765   }
1766   StringRef Arg = D->getArg();
1767   if (!Arg.empty())
1768     OS << " \"" << Arg << "\"";
1769 }
1770 
1771 void TextNodeDumper::VisitPragmaDetectMismatchDecl(
1772     const PragmaDetectMismatchDecl *D) {
1773   OS << " \"" << D->getName() << "\" \"" << D->getValue() << "\"";
1774 }
1775 
1776 void TextNodeDumper::VisitOMPExecutableDirective(
1777     const OMPExecutableDirective *D) {
1778   if (D->isStandaloneDirective())
1779     OS << " openmp_standalone_directive";
1780 }
1781 
1782 void TextNodeDumper::VisitOMPDeclareReductionDecl(
1783     const OMPDeclareReductionDecl *D) {
1784   dumpName(D);
1785   dumpType(D->getType());
1786   OS << " combiner";
1787   dumpPointer(D->getCombiner());
1788   if (const auto *Initializer = D->getInitializer()) {
1789     OS << " initializer";
1790     dumpPointer(Initializer);
1791     switch (D->getInitializerKind()) {
1792     case OMPDeclareReductionDecl::DirectInit:
1793       OS << " omp_priv = ";
1794       break;
1795     case OMPDeclareReductionDecl::CopyInit:
1796       OS << " omp_priv ()";
1797       break;
1798     case OMPDeclareReductionDecl::CallInit:
1799       break;
1800     }
1801   }
1802 }
1803 
1804 void TextNodeDumper::VisitOMPRequiresDecl(const OMPRequiresDecl *D) {
1805   for (const auto *C : D->clauselists()) {
1806     AddChild([=] {
1807       if (!C) {
1808         ColorScope Color(OS, ShowColors, NullColor);
1809         OS << "<<<NULL>>> OMPClause";
1810         return;
1811       }
1812       {
1813         ColorScope Color(OS, ShowColors, AttrColor);
1814         StringRef ClauseName(
1815             llvm::omp::getOpenMPClauseName(C->getClauseKind()));
1816         OS << "OMP" << ClauseName.substr(/*Start=*/0, /*N=*/1).upper()
1817            << ClauseName.drop_front() << "Clause";
1818       }
1819       dumpPointer(C);
1820       dumpSourceRange(SourceRange(C->getBeginLoc(), C->getEndLoc()));
1821     });
1822   }
1823 }
1824 
1825 void TextNodeDumper::VisitOMPCapturedExprDecl(const OMPCapturedExprDecl *D) {
1826   dumpName(D);
1827   dumpType(D->getType());
1828 }
1829 
1830 void TextNodeDumper::VisitNamespaceDecl(const NamespaceDecl *D) {
1831   dumpName(D);
1832   if (D->isInline())
1833     OS << " inline";
1834   if (!D->isOriginalNamespace())
1835     dumpDeclRef(D->getOriginalNamespace(), "original");
1836 }
1837 
1838 void TextNodeDumper::VisitUsingDirectiveDecl(const UsingDirectiveDecl *D) {
1839   OS << ' ';
1840   dumpBareDeclRef(D->getNominatedNamespace());
1841 }
1842 
1843 void TextNodeDumper::VisitNamespaceAliasDecl(const NamespaceAliasDecl *D) {
1844   dumpName(D);
1845   dumpDeclRef(D->getAliasedNamespace());
1846 }
1847 
1848 void TextNodeDumper::VisitTypeAliasDecl(const TypeAliasDecl *D) {
1849   dumpName(D);
1850   dumpType(D->getUnderlyingType());
1851 }
1852 
1853 void TextNodeDumper::VisitTypeAliasTemplateDecl(
1854     const TypeAliasTemplateDecl *D) {
1855   dumpName(D);
1856 }
1857 
1858 void TextNodeDumper::VisitCXXRecordDecl(const CXXRecordDecl *D) {
1859   VisitRecordDecl(D);
1860   if (!D->isCompleteDefinition())
1861     return;
1862 
1863   AddChild([=] {
1864     {
1865       ColorScope Color(OS, ShowColors, DeclKindNameColor);
1866       OS << "DefinitionData";
1867     }
1868 #define FLAG(fn, name)                                                         \
1869   if (D->fn())                                                                 \
1870     OS << " " #name;
1871     FLAG(isParsingBaseSpecifiers, parsing_base_specifiers);
1872 
1873     FLAG(isGenericLambda, generic);
1874     FLAG(isLambda, lambda);
1875 
1876     FLAG(isAnonymousStructOrUnion, is_anonymous);
1877     FLAG(canPassInRegisters, pass_in_registers);
1878     FLAG(isEmpty, empty);
1879     FLAG(isAggregate, aggregate);
1880     FLAG(isStandardLayout, standard_layout);
1881     FLAG(isTriviallyCopyable, trivially_copyable);
1882     FLAG(isPOD, pod);
1883     FLAG(isTrivial, trivial);
1884     FLAG(isPolymorphic, polymorphic);
1885     FLAG(isAbstract, abstract);
1886     FLAG(isLiteral, literal);
1887 
1888     FLAG(hasUserDeclaredConstructor, has_user_declared_ctor);
1889     FLAG(hasConstexprNonCopyMoveConstructor, has_constexpr_non_copy_move_ctor);
1890     FLAG(hasMutableFields, has_mutable_fields);
1891     FLAG(hasVariantMembers, has_variant_members);
1892     FLAG(allowConstDefaultInit, can_const_default_init);
1893 
1894     AddChild([=] {
1895       {
1896         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1897         OS << "DefaultConstructor";
1898       }
1899       FLAG(hasDefaultConstructor, exists);
1900       FLAG(hasTrivialDefaultConstructor, trivial);
1901       FLAG(hasNonTrivialDefaultConstructor, non_trivial);
1902       FLAG(hasUserProvidedDefaultConstructor, user_provided);
1903       FLAG(hasConstexprDefaultConstructor, constexpr);
1904       FLAG(needsImplicitDefaultConstructor, needs_implicit);
1905       FLAG(defaultedDefaultConstructorIsConstexpr, defaulted_is_constexpr);
1906     });
1907 
1908     AddChild([=] {
1909       {
1910         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1911         OS << "CopyConstructor";
1912       }
1913       FLAG(hasSimpleCopyConstructor, simple);
1914       FLAG(hasTrivialCopyConstructor, trivial);
1915       FLAG(hasNonTrivialCopyConstructor, non_trivial);
1916       FLAG(hasUserDeclaredCopyConstructor, user_declared);
1917       FLAG(hasCopyConstructorWithConstParam, has_const_param);
1918       FLAG(needsImplicitCopyConstructor, needs_implicit);
1919       FLAG(needsOverloadResolutionForCopyConstructor,
1920            needs_overload_resolution);
1921       if (!D->needsOverloadResolutionForCopyConstructor())
1922         FLAG(defaultedCopyConstructorIsDeleted, defaulted_is_deleted);
1923       FLAG(implicitCopyConstructorHasConstParam, implicit_has_const_param);
1924     });
1925 
1926     AddChild([=] {
1927       {
1928         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1929         OS << "MoveConstructor";
1930       }
1931       FLAG(hasMoveConstructor, exists);
1932       FLAG(hasSimpleMoveConstructor, simple);
1933       FLAG(hasTrivialMoveConstructor, trivial);
1934       FLAG(hasNonTrivialMoveConstructor, non_trivial);
1935       FLAG(hasUserDeclaredMoveConstructor, user_declared);
1936       FLAG(needsImplicitMoveConstructor, needs_implicit);
1937       FLAG(needsOverloadResolutionForMoveConstructor,
1938            needs_overload_resolution);
1939       if (!D->needsOverloadResolutionForMoveConstructor())
1940         FLAG(defaultedMoveConstructorIsDeleted, defaulted_is_deleted);
1941     });
1942 
1943     AddChild([=] {
1944       {
1945         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1946         OS << "CopyAssignment";
1947       }
1948       FLAG(hasSimpleCopyAssignment, simple);
1949       FLAG(hasTrivialCopyAssignment, trivial);
1950       FLAG(hasNonTrivialCopyAssignment, non_trivial);
1951       FLAG(hasCopyAssignmentWithConstParam, has_const_param);
1952       FLAG(hasUserDeclaredCopyAssignment, user_declared);
1953       FLAG(needsImplicitCopyAssignment, needs_implicit);
1954       FLAG(needsOverloadResolutionForCopyAssignment, needs_overload_resolution);
1955       FLAG(implicitCopyAssignmentHasConstParam, implicit_has_const_param);
1956     });
1957 
1958     AddChild([=] {
1959       {
1960         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1961         OS << "MoveAssignment";
1962       }
1963       FLAG(hasMoveAssignment, exists);
1964       FLAG(hasSimpleMoveAssignment, simple);
1965       FLAG(hasTrivialMoveAssignment, trivial);
1966       FLAG(hasNonTrivialMoveAssignment, non_trivial);
1967       FLAG(hasUserDeclaredMoveAssignment, user_declared);
1968       FLAG(needsImplicitMoveAssignment, needs_implicit);
1969       FLAG(needsOverloadResolutionForMoveAssignment, needs_overload_resolution);
1970     });
1971 
1972     AddChild([=] {
1973       {
1974         ColorScope Color(OS, ShowColors, DeclKindNameColor);
1975         OS << "Destructor";
1976       }
1977       FLAG(hasSimpleDestructor, simple);
1978       FLAG(hasIrrelevantDestructor, irrelevant);
1979       FLAG(hasTrivialDestructor, trivial);
1980       FLAG(hasNonTrivialDestructor, non_trivial);
1981       FLAG(hasUserDeclaredDestructor, user_declared);
1982       FLAG(hasConstexprDestructor, constexpr);
1983       FLAG(needsImplicitDestructor, needs_implicit);
1984       FLAG(needsOverloadResolutionForDestructor, needs_overload_resolution);
1985       if (!D->needsOverloadResolutionForDestructor())
1986         FLAG(defaultedDestructorIsDeleted, defaulted_is_deleted);
1987     });
1988   });
1989 
1990   for (const auto &I : D->bases()) {
1991     AddChild([=] {
1992       if (I.isVirtual())
1993         OS << "virtual ";
1994       dumpAccessSpecifier(I.getAccessSpecifier());
1995       dumpType(I.getType());
1996       if (I.isPackExpansion())
1997         OS << "...";
1998     });
1999   }
2000 }
2001 
2002 void TextNodeDumper::VisitFunctionTemplateDecl(const FunctionTemplateDecl *D) {
2003   dumpName(D);
2004 }
2005 
2006 void TextNodeDumper::VisitClassTemplateDecl(const ClassTemplateDecl *D) {
2007   dumpName(D);
2008 }
2009 
2010 void TextNodeDumper::VisitVarTemplateDecl(const VarTemplateDecl *D) {
2011   dumpName(D);
2012 }
2013 
2014 void TextNodeDumper::VisitBuiltinTemplateDecl(const BuiltinTemplateDecl *D) {
2015   dumpName(D);
2016 }
2017 
2018 void TextNodeDumper::VisitTemplateTypeParmDecl(const TemplateTypeParmDecl *D) {
2019   if (const auto *TC = D->getTypeConstraint()) {
2020     OS << " ";
2021     dumpBareDeclRef(TC->getNamedConcept());
2022     if (TC->getNamedConcept() != TC->getFoundDecl()) {
2023       OS << " (";
2024       dumpBareDeclRef(TC->getFoundDecl());
2025       OS << ")";
2026     }
2027   } else if (D->wasDeclaredWithTypename())
2028     OS << " typename";
2029   else
2030     OS << " class";
2031   OS << " depth " << D->getDepth() << " index " << D->getIndex();
2032   if (D->isParameterPack())
2033     OS << " ...";
2034   dumpName(D);
2035 }
2036 
2037 void TextNodeDumper::VisitNonTypeTemplateParmDecl(
2038     const NonTypeTemplateParmDecl *D) {
2039   dumpType(D->getType());
2040   OS << " depth " << D->getDepth() << " index " << D->getIndex();
2041   if (D->isParameterPack())
2042     OS << " ...";
2043   dumpName(D);
2044 }
2045 
2046 void TextNodeDumper::VisitTemplateTemplateParmDecl(
2047     const TemplateTemplateParmDecl *D) {
2048   OS << " depth " << D->getDepth() << " index " << D->getIndex();
2049   if (D->isParameterPack())
2050     OS << " ...";
2051   dumpName(D);
2052 }
2053 
2054 void TextNodeDumper::VisitUsingDecl(const UsingDecl *D) {
2055   OS << ' ';
2056   if (D->getQualifier())
2057     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
2058   OS << D->getDeclName();
2059 }
2060 
2061 void TextNodeDumper::VisitUnresolvedUsingTypenameDecl(
2062     const UnresolvedUsingTypenameDecl *D) {
2063   OS << ' ';
2064   if (D->getQualifier())
2065     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
2066   OS << D->getDeclName();
2067 }
2068 
2069 void TextNodeDumper::VisitUnresolvedUsingValueDecl(
2070     const UnresolvedUsingValueDecl *D) {
2071   OS << ' ';
2072   if (D->getQualifier())
2073     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
2074   OS << D->getDeclName();
2075   dumpType(D->getType());
2076 }
2077 
2078 void TextNodeDumper::VisitUsingShadowDecl(const UsingShadowDecl *D) {
2079   OS << ' ';
2080   dumpBareDeclRef(D->getTargetDecl());
2081 }
2082 
2083 void TextNodeDumper::VisitConstructorUsingShadowDecl(
2084     const ConstructorUsingShadowDecl *D) {
2085   if (D->constructsVirtualBase())
2086     OS << " virtual";
2087 
2088   AddChild([=] {
2089     OS << "target ";
2090     dumpBareDeclRef(D->getTargetDecl());
2091   });
2092 
2093   AddChild([=] {
2094     OS << "nominated ";
2095     dumpBareDeclRef(D->getNominatedBaseClass());
2096     OS << ' ';
2097     dumpBareDeclRef(D->getNominatedBaseClassShadowDecl());
2098   });
2099 
2100   AddChild([=] {
2101     OS << "constructed ";
2102     dumpBareDeclRef(D->getConstructedBaseClass());
2103     OS << ' ';
2104     dumpBareDeclRef(D->getConstructedBaseClassShadowDecl());
2105   });
2106 }
2107 
2108 void TextNodeDumper::VisitLinkageSpecDecl(const LinkageSpecDecl *D) {
2109   switch (D->getLanguage()) {
2110   case LinkageSpecDecl::lang_c:
2111     OS << " C";
2112     break;
2113   case LinkageSpecDecl::lang_cxx:
2114     OS << " C++";
2115     break;
2116   }
2117 }
2118 
2119 void TextNodeDumper::VisitAccessSpecDecl(const AccessSpecDecl *D) {
2120   OS << ' ';
2121   dumpAccessSpecifier(D->getAccess());
2122 }
2123 
2124 void TextNodeDumper::VisitFriendDecl(const FriendDecl *D) {
2125   if (TypeSourceInfo *T = D->getFriendType())
2126     dumpType(T->getType());
2127 }
2128 
2129 void TextNodeDumper::VisitObjCIvarDecl(const ObjCIvarDecl *D) {
2130   dumpName(D);
2131   dumpType(D->getType());
2132   if (D->getSynthesize())
2133     OS << " synthesize";
2134 
2135   switch (D->getAccessControl()) {
2136   case ObjCIvarDecl::None:
2137     OS << " none";
2138     break;
2139   case ObjCIvarDecl::Private:
2140     OS << " private";
2141     break;
2142   case ObjCIvarDecl::Protected:
2143     OS << " protected";
2144     break;
2145   case ObjCIvarDecl::Public:
2146     OS << " public";
2147     break;
2148   case ObjCIvarDecl::Package:
2149     OS << " package";
2150     break;
2151   }
2152 }
2153 
2154 void TextNodeDumper::VisitObjCMethodDecl(const ObjCMethodDecl *D) {
2155   if (D->isInstanceMethod())
2156     OS << " -";
2157   else
2158     OS << " +";
2159   dumpName(D);
2160   dumpType(D->getReturnType());
2161 
2162   if (D->isVariadic())
2163     OS << " variadic";
2164 }
2165 
2166 void TextNodeDumper::VisitObjCTypeParamDecl(const ObjCTypeParamDecl *D) {
2167   dumpName(D);
2168   switch (D->getVariance()) {
2169   case ObjCTypeParamVariance::Invariant:
2170     break;
2171 
2172   case ObjCTypeParamVariance::Covariant:
2173     OS << " covariant";
2174     break;
2175 
2176   case ObjCTypeParamVariance::Contravariant:
2177     OS << " contravariant";
2178     break;
2179   }
2180 
2181   if (D->hasExplicitBound())
2182     OS << " bounded";
2183   dumpType(D->getUnderlyingType());
2184 }
2185 
2186 void TextNodeDumper::VisitObjCCategoryDecl(const ObjCCategoryDecl *D) {
2187   dumpName(D);
2188   dumpDeclRef(D->getClassInterface());
2189   dumpDeclRef(D->getImplementation());
2190   for (const auto *P : D->protocols())
2191     dumpDeclRef(P);
2192 }
2193 
2194 void TextNodeDumper::VisitObjCCategoryImplDecl(const ObjCCategoryImplDecl *D) {
2195   dumpName(D);
2196   dumpDeclRef(D->getClassInterface());
2197   dumpDeclRef(D->getCategoryDecl());
2198 }
2199 
2200 void TextNodeDumper::VisitObjCProtocolDecl(const ObjCProtocolDecl *D) {
2201   dumpName(D);
2202 
2203   for (const auto *Child : D->protocols())
2204     dumpDeclRef(Child);
2205 }
2206 
2207 void TextNodeDumper::VisitObjCInterfaceDecl(const ObjCInterfaceDecl *D) {
2208   dumpName(D);
2209   dumpDeclRef(D->getSuperClass(), "super");
2210 
2211   dumpDeclRef(D->getImplementation());
2212   for (const auto *Child : D->protocols())
2213     dumpDeclRef(Child);
2214 }
2215 
2216 void TextNodeDumper::VisitObjCImplementationDecl(
2217     const ObjCImplementationDecl *D) {
2218   dumpName(D);
2219   dumpDeclRef(D->getSuperClass(), "super");
2220   dumpDeclRef(D->getClassInterface());
2221 }
2222 
2223 void TextNodeDumper::VisitObjCCompatibleAliasDecl(
2224     const ObjCCompatibleAliasDecl *D) {
2225   dumpName(D);
2226   dumpDeclRef(D->getClassInterface());
2227 }
2228 
2229 void TextNodeDumper::VisitObjCPropertyDecl(const ObjCPropertyDecl *D) {
2230   dumpName(D);
2231   dumpType(D->getType());
2232 
2233   if (D->getPropertyImplementation() == ObjCPropertyDecl::Required)
2234     OS << " required";
2235   else if (D->getPropertyImplementation() == ObjCPropertyDecl::Optional)
2236     OS << " optional";
2237 
2238   ObjCPropertyAttribute::Kind Attrs = D->getPropertyAttributes();
2239   if (Attrs != ObjCPropertyAttribute::kind_noattr) {
2240     if (Attrs & ObjCPropertyAttribute::kind_readonly)
2241       OS << " readonly";
2242     if (Attrs & ObjCPropertyAttribute::kind_assign)
2243       OS << " assign";
2244     if (Attrs & ObjCPropertyAttribute::kind_readwrite)
2245       OS << " readwrite";
2246     if (Attrs & ObjCPropertyAttribute::kind_retain)
2247       OS << " retain";
2248     if (Attrs & ObjCPropertyAttribute::kind_copy)
2249       OS << " copy";
2250     if (Attrs & ObjCPropertyAttribute::kind_nonatomic)
2251       OS << " nonatomic";
2252     if (Attrs & ObjCPropertyAttribute::kind_atomic)
2253       OS << " atomic";
2254     if (Attrs & ObjCPropertyAttribute::kind_weak)
2255       OS << " weak";
2256     if (Attrs & ObjCPropertyAttribute::kind_strong)
2257       OS << " strong";
2258     if (Attrs & ObjCPropertyAttribute::kind_unsafe_unretained)
2259       OS << " unsafe_unretained";
2260     if (Attrs & ObjCPropertyAttribute::kind_class)
2261       OS << " class";
2262     if (Attrs & ObjCPropertyAttribute::kind_direct)
2263       OS << " direct";
2264     if (Attrs & ObjCPropertyAttribute::kind_getter)
2265       dumpDeclRef(D->getGetterMethodDecl(), "getter");
2266     if (Attrs & ObjCPropertyAttribute::kind_setter)
2267       dumpDeclRef(D->getSetterMethodDecl(), "setter");
2268   }
2269 }
2270 
2271 void TextNodeDumper::VisitObjCPropertyImplDecl(const ObjCPropertyImplDecl *D) {
2272   dumpName(D->getPropertyDecl());
2273   if (D->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize)
2274     OS << " synthesize";
2275   else
2276     OS << " dynamic";
2277   dumpDeclRef(D->getPropertyDecl());
2278   dumpDeclRef(D->getPropertyIvarDecl());
2279 }
2280 
2281 void TextNodeDumper::VisitBlockDecl(const BlockDecl *D) {
2282   if (D->isVariadic())
2283     OS << " variadic";
2284 
2285   if (D->capturesCXXThis())
2286     OS << " captures_this";
2287 }
2288 
2289 void TextNodeDumper::VisitConceptDecl(const ConceptDecl *D) {
2290   dumpName(D);
2291 }
2292