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