1 //===--- ASTDumper.cpp - Dumping implementation for ASTs ------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file implements the AST dump methods, which dump out the
11 // AST in a form that exposes type details and other fields.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #include "clang/AST/ASTContext.h"
16 #include "clang/AST/Attr.h"
17 #include "clang/AST/CommentVisitor.h"
18 #include "clang/AST/DeclCXX.h"
19 #include "clang/AST/DeclLookups.h"
20 #include "clang/AST/DeclObjC.h"
21 #include "clang/AST/DeclOpenMP.h"
22 #include "clang/AST/DeclVisitor.h"
23 #include "clang/AST/LocInfoType.h"
24 #include "clang/AST/StmtVisitor.h"
25 #include "clang/AST/TypeVisitor.h"
26 #include "clang/Basic/Builtins.h"
27 #include "clang/Basic/Module.h"
28 #include "clang/Basic/SourceManager.h"
29 #include "llvm/Support/raw_ostream.h"
30 using namespace clang;
31 using namespace clang::comments;
32 
33 //===----------------------------------------------------------------------===//
34 // ASTDumper Visitor
35 //===----------------------------------------------------------------------===//
36 
37 namespace  {
38   // Colors used for various parts of the AST dump
39   // Do not use bold yellow for any text.  It is hard to read on white screens.
40 
41   struct TerminalColor {
42     raw_ostream::Colors Color;
43     bool Bold;
44   };
45 
46   // Red           - CastColor
47   // Green         - TypeColor
48   // Bold Green    - DeclKindNameColor, UndeserializedColor
49   // Yellow        - AddressColor, LocationColor
50   // Blue          - CommentColor, NullColor, IndentColor
51   // Bold Blue     - AttrColor
52   // Bold Magenta  - StmtColor
53   // Cyan          - ValueKindColor, ObjectKindColor
54   // Bold Cyan     - ValueColor, DeclNameColor
55 
56   // Decl kind names (VarDecl, FunctionDecl, etc)
57   static const TerminalColor DeclKindNameColor = { raw_ostream::GREEN, true };
58   // Attr names (CleanupAttr, GuardedByAttr, etc)
59   static const TerminalColor AttrColor = { raw_ostream::BLUE, true };
60   // Statement names (DeclStmt, ImplicitCastExpr, etc)
61   static const TerminalColor StmtColor = { raw_ostream::MAGENTA, true };
62   // Comment names (FullComment, ParagraphComment, TextComment, etc)
63   static const TerminalColor CommentColor = { raw_ostream::BLUE, false };
64 
65   // Type names (int, float, etc, plus user defined types)
66   static const TerminalColor TypeColor = { raw_ostream::GREEN, false };
67 
68   // Pointer address
69   static const TerminalColor AddressColor = { raw_ostream::YELLOW, false };
70   // Source locations
71   static const TerminalColor LocationColor = { raw_ostream::YELLOW, false };
72 
73   // lvalue/xvalue
74   static const TerminalColor ValueKindColor = { raw_ostream::CYAN, false };
75   // bitfield/objcproperty/objcsubscript/vectorcomponent
76   static const TerminalColor ObjectKindColor = { raw_ostream::CYAN, false };
77 
78   // Null statements
79   static const TerminalColor NullColor = { raw_ostream::BLUE, false };
80 
81   // Undeserialized entities
82   static const TerminalColor UndeserializedColor = { raw_ostream::GREEN, true };
83 
84   // CastKind from CastExpr's
85   static const TerminalColor CastColor = { raw_ostream::RED, false };
86 
87   // Value of the statement
88   static const TerminalColor ValueColor = { raw_ostream::CYAN, true };
89   // Decl names
90   static const TerminalColor DeclNameColor = { raw_ostream::CYAN, true };
91 
92   // Indents ( `, -. | )
93   static const TerminalColor IndentColor = { raw_ostream::BLUE, false };
94 
95   class ASTDumper
96       : public ConstDeclVisitor<ASTDumper>, public ConstStmtVisitor<ASTDumper>,
97         public ConstCommentVisitor<ASTDumper>, public TypeVisitor<ASTDumper> {
98     raw_ostream &OS;
99     const CommandTraits *Traits;
100     const SourceManager *SM;
101 
102     /// Pending[i] is an action to dump an entity at level i.
103     llvm::SmallVector<std::function<void(bool isLastChild)>, 32> Pending;
104 
105     /// Indicates whether we should trigger deserialization of nodes that had
106     /// not already been loaded.
107     bool Deserialize = false;
108 
109     /// Indicates whether we're at the top level.
110     bool TopLevel = true;
111 
112     /// Indicates if we're handling the first child after entering a new depth.
113     bool FirstChild = true;
114 
115     /// Prefix for currently-being-dumped entity.
116     std::string Prefix;
117 
118     /// Keep track of the last location we print out so that we can
119     /// print out deltas from then on out.
120     const char *LastLocFilename = "";
121     unsigned LastLocLine = ~0U;
122 
123     /// The \c FullComment parent of the comment being dumped.
124     const FullComment *FC = nullptr;
125 
126     bool ShowColors;
127 
128     /// Dump a child of the current node.
129     template<typename Fn> void dumpChild(Fn doDumpChild) {
130       // If we're at the top level, there's nothing interesting to do; just
131       // run the dumper.
132       if (TopLevel) {
133         TopLevel = false;
134         doDumpChild();
135         while (!Pending.empty()) {
136           Pending.back()(true);
137           Pending.pop_back();
138         }
139         Prefix.clear();
140         OS << "\n";
141         TopLevel = true;
142         return;
143       }
144 
145       const FullComment *OrigFC = FC;
146       auto dumpWithIndent = [this, doDumpChild, OrigFC](bool isLastChild) {
147         // Print out the appropriate tree structure and work out the prefix for
148         // children of this node. For instance:
149         //
150         //   A        Prefix = ""
151         //   |-B      Prefix = "| "
152         //   | `-C    Prefix = "|   "
153         //   `-D      Prefix = "  "
154         //     |-E    Prefix = "  | "
155         //     `-F    Prefix = "    "
156         //   G        Prefix = ""
157         //
158         // Note that the first level gets no prefix.
159         {
160           OS << '\n';
161           ColorScope Color(*this, IndentColor);
162           OS << Prefix << (isLastChild ? '`' : '|') << '-';
163           this->Prefix.push_back(isLastChild ? ' ' : '|');
164           this->Prefix.push_back(' ');
165         }
166 
167         FirstChild = true;
168         unsigned Depth = Pending.size();
169 
170         FC = OrigFC;
171         doDumpChild();
172 
173         // If any children are left, they're the last at their nesting level.
174         // Dump those ones out now.
175         while (Depth < Pending.size()) {
176           Pending.back()(true);
177           this->Pending.pop_back();
178         }
179 
180         // Restore the old prefix.
181         this->Prefix.resize(Prefix.size() - 2);
182       };
183 
184       if (FirstChild) {
185         Pending.push_back(std::move(dumpWithIndent));
186       } else {
187         Pending.back()(false);
188         Pending.back() = std::move(dumpWithIndent);
189       }
190       FirstChild = false;
191     }
192 
193     class ColorScope {
194       ASTDumper &Dumper;
195     public:
196       ColorScope(ASTDumper &Dumper, TerminalColor Color)
197         : Dumper(Dumper) {
198         if (Dumper.ShowColors)
199           Dumper.OS.changeColor(Color.Color, Color.Bold);
200       }
201       ~ColorScope() {
202         if (Dumper.ShowColors)
203           Dumper.OS.resetColor();
204       }
205     };
206 
207   public:
208     ASTDumper(raw_ostream &OS, const CommandTraits *Traits,
209               const SourceManager *SM)
210       : OS(OS), Traits(Traits), SM(SM),
211         ShowColors(SM && SM->getDiagnostics().getShowColors()) { }
212 
213     ASTDumper(raw_ostream &OS, const CommandTraits *Traits,
214               const SourceManager *SM, bool ShowColors)
215       : OS(OS), Traits(Traits), SM(SM), ShowColors(ShowColors) {}
216 
217     void setDeserialize(bool D) { Deserialize = D; }
218 
219     void dumpDecl(const Decl *D);
220     void dumpStmt(const Stmt *S);
221     void dumpFullComment(const FullComment *C);
222 
223     // Utilities
224     void dumpPointer(const void *Ptr);
225     void dumpSourceRange(SourceRange R);
226     void dumpLocation(SourceLocation Loc);
227     void dumpBareType(QualType T, bool Desugar = true);
228     void dumpType(QualType T);
229     void dumpTypeAsChild(QualType T);
230     void dumpTypeAsChild(const Type *T);
231     void dumpBareDeclRef(const Decl *Node);
232     void dumpDeclRef(const Decl *Node, const char *Label = nullptr);
233     void dumpName(const NamedDecl *D);
234     bool hasNodes(const DeclContext *DC);
235     void dumpDeclContext(const DeclContext *DC);
236     void dumpLookups(const DeclContext *DC, bool DumpDecls);
237     void dumpAttr(const Attr *A);
238 
239     // C++ Utilities
240     void dumpAccessSpecifier(AccessSpecifier AS);
241     void dumpCXXCtorInitializer(const CXXCtorInitializer *Init);
242     void dumpTemplateParameters(const TemplateParameterList *TPL);
243     void dumpTemplateArgumentListInfo(const TemplateArgumentListInfo &TALI);
244     void dumpTemplateArgumentLoc(const TemplateArgumentLoc &A);
245     void dumpTemplateArgumentList(const TemplateArgumentList &TAL);
246     void dumpTemplateArgument(const TemplateArgument &A,
247                               SourceRange R = SourceRange());
248 
249     // Objective-C utilities.
250     void dumpObjCTypeParamList(const ObjCTypeParamList *typeParams);
251 
252     // Types
253     void VisitComplexType(const ComplexType *T) {
254       dumpTypeAsChild(T->getElementType());
255     }
256     void VisitPointerType(const PointerType *T) {
257       dumpTypeAsChild(T->getPointeeType());
258     }
259     void VisitBlockPointerType(const BlockPointerType *T) {
260       dumpTypeAsChild(T->getPointeeType());
261     }
262     void VisitReferenceType(const ReferenceType *T) {
263       dumpTypeAsChild(T->getPointeeType());
264     }
265     void VisitRValueReferenceType(const ReferenceType *T) {
266       if (T->isSpelledAsLValue())
267         OS << " written as lvalue reference";
268       VisitReferenceType(T);
269     }
270     void VisitMemberPointerType(const MemberPointerType *T) {
271       dumpTypeAsChild(T->getClass());
272       dumpTypeAsChild(T->getPointeeType());
273     }
274     void VisitArrayType(const ArrayType *T) {
275       switch (T->getSizeModifier()) {
276         case ArrayType::Normal: break;
277         case ArrayType::Static: OS << " static"; break;
278         case ArrayType::Star: OS << " *"; break;
279       }
280       OS << " " << T->getIndexTypeQualifiers().getAsString();
281       dumpTypeAsChild(T->getElementType());
282     }
283     void VisitConstantArrayType(const ConstantArrayType *T) {
284       OS << " " << T->getSize();
285       VisitArrayType(T);
286     }
287     void VisitVariableArrayType(const VariableArrayType *T) {
288       OS << " ";
289       dumpSourceRange(T->getBracketsRange());
290       VisitArrayType(T);
291       dumpStmt(T->getSizeExpr());
292     }
293     void VisitDependentSizedArrayType(const DependentSizedArrayType *T) {
294       VisitArrayType(T);
295       OS << " ";
296       dumpSourceRange(T->getBracketsRange());
297       dumpStmt(T->getSizeExpr());
298     }
299     void VisitDependentSizedExtVectorType(
300         const DependentSizedExtVectorType *T) {
301       OS << " ";
302       dumpLocation(T->getAttributeLoc());
303       dumpTypeAsChild(T->getElementType());
304       dumpStmt(T->getSizeExpr());
305     }
306     void VisitVectorType(const VectorType *T) {
307       switch (T->getVectorKind()) {
308         case VectorType::GenericVector: break;
309         case VectorType::AltiVecVector: OS << " altivec"; break;
310         case VectorType::AltiVecPixel: OS << " altivec pixel"; break;
311         case VectorType::AltiVecBool: OS << " altivec bool"; break;
312         case VectorType::NeonVector: OS << " neon"; break;
313         case VectorType::NeonPolyVector: OS << " neon poly"; break;
314       }
315       OS << " " << T->getNumElements();
316       dumpTypeAsChild(T->getElementType());
317     }
318     void VisitFunctionType(const FunctionType *T) {
319       auto EI = T->getExtInfo();
320       if (EI.getNoReturn()) OS << " noreturn";
321       if (EI.getProducesResult()) OS << " produces_result";
322       if (EI.getHasRegParm()) OS << " regparm " << EI.getRegParm();
323       OS << " " << FunctionType::getNameForCallConv(EI.getCC());
324       dumpTypeAsChild(T->getReturnType());
325     }
326     void VisitFunctionProtoType(const FunctionProtoType *T) {
327       auto EPI = T->getExtProtoInfo();
328       if (EPI.HasTrailingReturn) OS << " trailing_return";
329       if (T->isConst()) OS << " const";
330       if (T->isVolatile()) OS << " volatile";
331       if (T->isRestrict()) OS << " restrict";
332       switch (EPI.RefQualifier) {
333         case RQ_None: break;
334         case RQ_LValue: OS << " &"; break;
335         case RQ_RValue: OS << " &&"; break;
336       }
337       // FIXME: Exception specification.
338       // FIXME: Consumed parameters.
339       VisitFunctionType(T);
340       for (QualType PT : T->getParamTypes())
341         dumpTypeAsChild(PT);
342       if (EPI.Variadic)
343         dumpChild([=] { OS << "..."; });
344     }
345     void VisitUnresolvedUsingType(const UnresolvedUsingType *T) {
346       dumpDeclRef(T->getDecl());
347     }
348     void VisitTypedefType(const TypedefType *T) {
349       dumpDeclRef(T->getDecl());
350     }
351     void VisitTypeOfExprType(const TypeOfExprType *T) {
352       dumpStmt(T->getUnderlyingExpr());
353     }
354     void VisitDecltypeType(const DecltypeType *T) {
355       dumpStmt(T->getUnderlyingExpr());
356     }
357     void VisitUnaryTransformType(const UnaryTransformType *T) {
358       switch (T->getUTTKind()) {
359       case UnaryTransformType::EnumUnderlyingType:
360         OS << " underlying_type";
361         break;
362       }
363       dumpTypeAsChild(T->getBaseType());
364     }
365     void VisitTagType(const TagType *T) {
366       dumpDeclRef(T->getDecl());
367     }
368     void VisitAttributedType(const AttributedType *T) {
369       // FIXME: AttrKind
370       dumpTypeAsChild(T->getModifiedType());
371     }
372     void VisitTemplateTypeParmType(const TemplateTypeParmType *T) {
373       OS << " depth " << T->getDepth() << " index " << T->getIndex();
374       if (T->isParameterPack()) OS << " pack";
375       dumpDeclRef(T->getDecl());
376     }
377     void VisitSubstTemplateTypeParmType(const SubstTemplateTypeParmType *T) {
378       dumpTypeAsChild(T->getReplacedParameter());
379     }
380     void VisitSubstTemplateTypeParmPackType(
381         const SubstTemplateTypeParmPackType *T) {
382       dumpTypeAsChild(T->getReplacedParameter());
383       dumpTemplateArgument(T->getArgumentPack());
384     }
385     void VisitAutoType(const AutoType *T) {
386       if (T->isDecltypeAuto()) OS << " decltype(auto)";
387       if (!T->isDeduced())
388         OS << " undeduced";
389     }
390     void VisitTemplateSpecializationType(const TemplateSpecializationType *T) {
391       if (T->isTypeAlias()) OS << " alias";
392       OS << " "; T->getTemplateName().dump(OS);
393       for (auto &Arg : *T)
394         dumpTemplateArgument(Arg);
395       if (T->isTypeAlias())
396         dumpTypeAsChild(T->getAliasedType());
397     }
398     void VisitInjectedClassNameType(const InjectedClassNameType *T) {
399       dumpDeclRef(T->getDecl());
400     }
401     void VisitObjCInterfaceType(const ObjCInterfaceType *T) {
402       dumpDeclRef(T->getDecl());
403     }
404     void VisitObjCObjectPointerType(const ObjCObjectPointerType *T) {
405       dumpTypeAsChild(T->getPointeeType());
406     }
407     void VisitAtomicType(const AtomicType *T) {
408       dumpTypeAsChild(T->getValueType());
409     }
410     void VisitPipeType(const PipeType *T) {
411       dumpTypeAsChild(T->getElementType());
412     }
413     void VisitAdjustedType(const AdjustedType *T) {
414       dumpTypeAsChild(T->getOriginalType());
415     }
416     void VisitPackExpansionType(const PackExpansionType *T) {
417       if (auto N = T->getNumExpansions()) OS << " expansions " << *N;
418       if (!T->isSugared())
419         dumpTypeAsChild(T->getPattern());
420     }
421     // FIXME: ElaboratedType, DependentNameType,
422     // DependentTemplateSpecializationType, ObjCObjectType
423 
424     // Decls
425     void VisitLabelDecl(const LabelDecl *D);
426     void VisitTypedefDecl(const TypedefDecl *D);
427     void VisitEnumDecl(const EnumDecl *D);
428     void VisitRecordDecl(const RecordDecl *D);
429     void VisitEnumConstantDecl(const EnumConstantDecl *D);
430     void VisitIndirectFieldDecl(const IndirectFieldDecl *D);
431     void VisitFunctionDecl(const FunctionDecl *D);
432     void VisitFieldDecl(const FieldDecl *D);
433     void VisitVarDecl(const VarDecl *D);
434     void VisitDecompositionDecl(const DecompositionDecl *D);
435     void VisitBindingDecl(const BindingDecl *D);
436     void VisitFileScopeAsmDecl(const FileScopeAsmDecl *D);
437     void VisitImportDecl(const ImportDecl *D);
438     void VisitPragmaCommentDecl(const PragmaCommentDecl *D);
439     void VisitPragmaDetectMismatchDecl(const PragmaDetectMismatchDecl *D);
440     void VisitCapturedDecl(const CapturedDecl *D);
441 
442     // OpenMP decls
443     void VisitOMPThreadPrivateDecl(const OMPThreadPrivateDecl *D);
444     void VisitOMPDeclareReductionDecl(const OMPDeclareReductionDecl *D);
445     void VisitOMPCapturedExprDecl(const OMPCapturedExprDecl *D);
446 
447     // C++ Decls
448     void VisitNamespaceDecl(const NamespaceDecl *D);
449     void VisitUsingDirectiveDecl(const UsingDirectiveDecl *D);
450     void VisitNamespaceAliasDecl(const NamespaceAliasDecl *D);
451     void VisitTypeAliasDecl(const TypeAliasDecl *D);
452     void VisitTypeAliasTemplateDecl(const TypeAliasTemplateDecl *D);
453     void VisitCXXRecordDecl(const CXXRecordDecl *D);
454     void VisitStaticAssertDecl(const StaticAssertDecl *D);
455     template<typename SpecializationDecl>
456     void VisitTemplateDeclSpecialization(const SpecializationDecl *D,
457                                          bool DumpExplicitInst,
458                                          bool DumpRefOnly);
459     template<typename TemplateDecl>
460     void VisitTemplateDecl(const TemplateDecl *D, bool DumpExplicitInst);
461     void VisitFunctionTemplateDecl(const FunctionTemplateDecl *D);
462     void VisitClassTemplateDecl(const ClassTemplateDecl *D);
463     void VisitClassTemplateSpecializationDecl(
464         const ClassTemplateSpecializationDecl *D);
465     void VisitClassTemplatePartialSpecializationDecl(
466         const ClassTemplatePartialSpecializationDecl *D);
467     void VisitClassScopeFunctionSpecializationDecl(
468         const ClassScopeFunctionSpecializationDecl *D);
469     void VisitBuiltinTemplateDecl(const BuiltinTemplateDecl *D);
470     void VisitVarTemplateDecl(const VarTemplateDecl *D);
471     void VisitVarTemplateSpecializationDecl(
472         const VarTemplateSpecializationDecl *D);
473     void VisitVarTemplatePartialSpecializationDecl(
474         const VarTemplatePartialSpecializationDecl *D);
475     void VisitTemplateTypeParmDecl(const TemplateTypeParmDecl *D);
476     void VisitNonTypeTemplateParmDecl(const NonTypeTemplateParmDecl *D);
477     void VisitTemplateTemplateParmDecl(const TemplateTemplateParmDecl *D);
478     void VisitUsingDecl(const UsingDecl *D);
479     void VisitUnresolvedUsingTypenameDecl(const UnresolvedUsingTypenameDecl *D);
480     void VisitUnresolvedUsingValueDecl(const UnresolvedUsingValueDecl *D);
481     void VisitUsingShadowDecl(const UsingShadowDecl *D);
482     void VisitConstructorUsingShadowDecl(const ConstructorUsingShadowDecl *D);
483     void VisitLinkageSpecDecl(const LinkageSpecDecl *D);
484     void VisitAccessSpecDecl(const AccessSpecDecl *D);
485     void VisitFriendDecl(const FriendDecl *D);
486 
487     // ObjC Decls
488     void VisitObjCIvarDecl(const ObjCIvarDecl *D);
489     void VisitObjCMethodDecl(const ObjCMethodDecl *D);
490     void VisitObjCTypeParamDecl(const ObjCTypeParamDecl *D);
491     void VisitObjCCategoryDecl(const ObjCCategoryDecl *D);
492     void VisitObjCCategoryImplDecl(const ObjCCategoryImplDecl *D);
493     void VisitObjCProtocolDecl(const ObjCProtocolDecl *D);
494     void VisitObjCInterfaceDecl(const ObjCInterfaceDecl *D);
495     void VisitObjCImplementationDecl(const ObjCImplementationDecl *D);
496     void VisitObjCCompatibleAliasDecl(const ObjCCompatibleAliasDecl *D);
497     void VisitObjCPropertyDecl(const ObjCPropertyDecl *D);
498     void VisitObjCPropertyImplDecl(const ObjCPropertyImplDecl *D);
499     void VisitBlockDecl(const BlockDecl *D);
500 
501     // Stmts.
502     void VisitStmt(const Stmt *Node);
503     void VisitDeclStmt(const DeclStmt *Node);
504     void VisitAttributedStmt(const AttributedStmt *Node);
505     void VisitLabelStmt(const LabelStmt *Node);
506     void VisitGotoStmt(const GotoStmt *Node);
507     void VisitCXXCatchStmt(const CXXCatchStmt *Node);
508     void VisitCapturedStmt(const CapturedStmt *Node);
509 
510     // OpenMP
511     void VisitOMPExecutableDirective(const OMPExecutableDirective *Node);
512 
513     // Exprs
514     void VisitExpr(const Expr *Node);
515     void VisitCastExpr(const CastExpr *Node);
516     void VisitDeclRefExpr(const DeclRefExpr *Node);
517     void VisitPredefinedExpr(const PredefinedExpr *Node);
518     void VisitCharacterLiteral(const CharacterLiteral *Node);
519     void VisitIntegerLiteral(const IntegerLiteral *Node);
520     void VisitFloatingLiteral(const FloatingLiteral *Node);
521     void VisitStringLiteral(const StringLiteral *Str);
522     void VisitInitListExpr(const InitListExpr *ILE);
523     void VisitArrayInitLoopExpr(const ArrayInitLoopExpr *ILE);
524     void VisitArrayInitIndexExpr(const ArrayInitIndexExpr *ILE);
525     void VisitUnaryOperator(const UnaryOperator *Node);
526     void VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *Node);
527     void VisitMemberExpr(const MemberExpr *Node);
528     void VisitExtVectorElementExpr(const ExtVectorElementExpr *Node);
529     void VisitBinaryOperator(const BinaryOperator *Node);
530     void VisitCompoundAssignOperator(const CompoundAssignOperator *Node);
531     void VisitAddrLabelExpr(const AddrLabelExpr *Node);
532     void VisitBlockExpr(const BlockExpr *Node);
533     void VisitOpaqueValueExpr(const OpaqueValueExpr *Node);
534 
535     // C++
536     void VisitCXXNamedCastExpr(const CXXNamedCastExpr *Node);
537     void VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *Node);
538     void VisitCXXThisExpr(const CXXThisExpr *Node);
539     void VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *Node);
540     void VisitCXXConstructExpr(const CXXConstructExpr *Node);
541     void VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *Node);
542     void VisitCXXNewExpr(const CXXNewExpr *Node);
543     void VisitCXXDeleteExpr(const CXXDeleteExpr *Node);
544     void VisitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *Node);
545     void VisitExprWithCleanups(const ExprWithCleanups *Node);
546     void VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *Node);
547     void dumpCXXTemporary(const CXXTemporary *Temporary);
548     void VisitLambdaExpr(const LambdaExpr *Node) {
549       VisitExpr(Node);
550       dumpDecl(Node->getLambdaClass());
551     }
552     void VisitSizeOfPackExpr(const SizeOfPackExpr *Node);
553     void
554     VisitCXXDependentScopeMemberExpr(const CXXDependentScopeMemberExpr *Node);
555 
556     // ObjC
557     void VisitObjCAtCatchStmt(const ObjCAtCatchStmt *Node);
558     void VisitObjCEncodeExpr(const ObjCEncodeExpr *Node);
559     void VisitObjCMessageExpr(const ObjCMessageExpr *Node);
560     void VisitObjCBoxedExpr(const ObjCBoxedExpr *Node);
561     void VisitObjCSelectorExpr(const ObjCSelectorExpr *Node);
562     void VisitObjCProtocolExpr(const ObjCProtocolExpr *Node);
563     void VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *Node);
564     void VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *Node);
565     void VisitObjCIvarRefExpr(const ObjCIvarRefExpr *Node);
566     void VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *Node);
567 
568     // Comments.
569     const char *getCommandName(unsigned CommandID);
570     void dumpComment(const Comment *C);
571 
572     // Inline comments.
573     void visitTextComment(const TextComment *C);
574     void visitInlineCommandComment(const InlineCommandComment *C);
575     void visitHTMLStartTagComment(const HTMLStartTagComment *C);
576     void visitHTMLEndTagComment(const HTMLEndTagComment *C);
577 
578     // Block comments.
579     void visitBlockCommandComment(const BlockCommandComment *C);
580     void visitParamCommandComment(const ParamCommandComment *C);
581     void visitTParamCommandComment(const TParamCommandComment *C);
582     void visitVerbatimBlockComment(const VerbatimBlockComment *C);
583     void visitVerbatimBlockLineComment(const VerbatimBlockLineComment *C);
584     void visitVerbatimLineComment(const VerbatimLineComment *C);
585   };
586 }
587 
588 //===----------------------------------------------------------------------===//
589 //  Utilities
590 //===----------------------------------------------------------------------===//
591 
592 void ASTDumper::dumpPointer(const void *Ptr) {
593   ColorScope Color(*this, AddressColor);
594   OS << ' ' << Ptr;
595 }
596 
597 void ASTDumper::dumpLocation(SourceLocation Loc) {
598   if (!SM)
599     return;
600 
601   ColorScope Color(*this, LocationColor);
602   SourceLocation SpellingLoc = SM->getSpellingLoc(Loc);
603 
604   // The general format we print out is filename:line:col, but we drop pieces
605   // that haven't changed since the last loc printed.
606   PresumedLoc PLoc = SM->getPresumedLoc(SpellingLoc);
607 
608   if (PLoc.isInvalid()) {
609     OS << "<invalid sloc>";
610     return;
611   }
612 
613   if (strcmp(PLoc.getFilename(), LastLocFilename) != 0) {
614     OS << PLoc.getFilename() << ':' << PLoc.getLine()
615        << ':' << PLoc.getColumn();
616     LastLocFilename = PLoc.getFilename();
617     LastLocLine = PLoc.getLine();
618   } else if (PLoc.getLine() != LastLocLine) {
619     OS << "line" << ':' << PLoc.getLine()
620        << ':' << PLoc.getColumn();
621     LastLocLine = PLoc.getLine();
622   } else {
623     OS << "col" << ':' << PLoc.getColumn();
624   }
625 }
626 
627 void ASTDumper::dumpSourceRange(SourceRange R) {
628   // Can't translate locations if a SourceManager isn't available.
629   if (!SM)
630     return;
631 
632   OS << " <";
633   dumpLocation(R.getBegin());
634   if (R.getBegin() != R.getEnd()) {
635     OS << ", ";
636     dumpLocation(R.getEnd());
637   }
638   OS << ">";
639 
640   // <t2.c:123:421[blah], t2.c:412:321>
641 
642 }
643 
644 void ASTDumper::dumpBareType(QualType T, bool Desugar) {
645   ColorScope Color(*this, TypeColor);
646 
647   SplitQualType T_split = T.split();
648   OS << "'" << QualType::getAsString(T_split) << "'";
649 
650   if (Desugar && !T.isNull()) {
651     // If the type is sugared, also dump a (shallow) desugared type.
652     SplitQualType D_split = T.getSplitDesugaredType();
653     if (T_split != D_split)
654       OS << ":'" << QualType::getAsString(D_split) << "'";
655   }
656 }
657 
658 void ASTDumper::dumpType(QualType T) {
659   OS << ' ';
660   dumpBareType(T);
661 }
662 
663 void ASTDumper::dumpTypeAsChild(QualType T) {
664   SplitQualType SQT = T.split();
665   if (!SQT.Quals.hasQualifiers())
666     return dumpTypeAsChild(SQT.Ty);
667 
668   dumpChild([=] {
669     OS << "QualType";
670     dumpPointer(T.getAsOpaquePtr());
671     OS << " ";
672     dumpBareType(T, false);
673     OS << " " << T.split().Quals.getAsString();
674     dumpTypeAsChild(T.split().Ty);
675   });
676 }
677 
678 void ASTDumper::dumpTypeAsChild(const Type *T) {
679   dumpChild([=] {
680     if (!T) {
681       ColorScope Color(*this, NullColor);
682       OS << "<<<NULL>>>";
683       return;
684     }
685     if (const LocInfoType *LIT = llvm::dyn_cast<LocInfoType>(T)) {
686       {
687         ColorScope Color(*this, TypeColor);
688         OS << "LocInfo Type";
689       }
690       dumpPointer(T);
691       dumpTypeAsChild(LIT->getTypeSourceInfo()->getType());
692       return;
693     }
694 
695     {
696       ColorScope Color(*this, TypeColor);
697       OS << T->getTypeClassName() << "Type";
698     }
699     dumpPointer(T);
700     OS << " ";
701     dumpBareType(QualType(T, 0), false);
702 
703     QualType SingleStepDesugar =
704         T->getLocallyUnqualifiedSingleStepDesugaredType();
705     if (SingleStepDesugar != QualType(T, 0))
706       OS << " sugar";
707     if (T->isDependentType())
708       OS << " dependent";
709     else if (T->isInstantiationDependentType())
710       OS << " instantiation_dependent";
711     if (T->isVariablyModifiedType())
712       OS << " variably_modified";
713     if (T->containsUnexpandedParameterPack())
714       OS << " contains_unexpanded_pack";
715     if (T->isFromAST())
716       OS << " imported";
717 
718     TypeVisitor<ASTDumper>::Visit(T);
719 
720     if (SingleStepDesugar != QualType(T, 0))
721       dumpTypeAsChild(SingleStepDesugar);
722   });
723 }
724 
725 void ASTDumper::dumpBareDeclRef(const Decl *D) {
726   if (!D) {
727     ColorScope Color(*this, NullColor);
728     OS << "<<<NULL>>>";
729     return;
730   }
731 
732   {
733     ColorScope Color(*this, DeclKindNameColor);
734     OS << D->getDeclKindName();
735   }
736   dumpPointer(D);
737 
738   if (const NamedDecl *ND = dyn_cast<NamedDecl>(D)) {
739     ColorScope Color(*this, DeclNameColor);
740     OS << " '" << ND->getDeclName() << '\'';
741   }
742 
743   if (const ValueDecl *VD = dyn_cast<ValueDecl>(D))
744     dumpType(VD->getType());
745 }
746 
747 void ASTDumper::dumpDeclRef(const Decl *D, const char *Label) {
748   if (!D)
749     return;
750 
751   dumpChild([=]{
752     if (Label)
753       OS << Label << ' ';
754     dumpBareDeclRef(D);
755   });
756 }
757 
758 void ASTDumper::dumpName(const NamedDecl *ND) {
759   if (ND->getDeclName()) {
760     ColorScope Color(*this, DeclNameColor);
761     OS << ' ' << ND->getNameAsString();
762   }
763 }
764 
765 bool ASTDumper::hasNodes(const DeclContext *DC) {
766   if (!DC)
767     return false;
768 
769   return DC->hasExternalLexicalStorage() ||
770          (Deserialize ? DC->decls_begin() != DC->decls_end()
771                       : DC->noload_decls_begin() != DC->noload_decls_end());
772 }
773 
774 void ASTDumper::dumpDeclContext(const DeclContext *DC) {
775   if (!DC)
776     return;
777 
778   for (auto *D : (Deserialize ? DC->decls() : DC->noload_decls()))
779     dumpDecl(D);
780 
781   if (DC->hasExternalLexicalStorage()) {
782     dumpChild([=]{
783       ColorScope Color(*this, UndeserializedColor);
784       OS << "<undeserialized declarations>";
785     });
786   }
787 }
788 
789 void ASTDumper::dumpLookups(const DeclContext *DC, bool DumpDecls) {
790   dumpChild([=] {
791     OS << "StoredDeclsMap ";
792     dumpBareDeclRef(cast<Decl>(DC));
793 
794     const DeclContext *Primary = DC->getPrimaryContext();
795     if (Primary != DC) {
796       OS << " primary";
797       dumpPointer(cast<Decl>(Primary));
798     }
799 
800     bool HasUndeserializedLookups = Primary->hasExternalVisibleStorage();
801 
802     for (auto I = Deserialize ? Primary->lookups_begin()
803                               : Primary->noload_lookups_begin(),
804               E = Deserialize ? Primary->lookups_end()
805                               : Primary->noload_lookups_end();
806          I != E; ++I) {
807       DeclarationName Name = I.getLookupName();
808       DeclContextLookupResult R = *I;
809 
810       dumpChild([=] {
811         OS << "DeclarationName ";
812         {
813           ColorScope Color(*this, DeclNameColor);
814           OS << '\'' << Name << '\'';
815         }
816 
817         for (DeclContextLookupResult::iterator RI = R.begin(), RE = R.end();
818              RI != RE; ++RI) {
819           dumpChild([=] {
820             dumpBareDeclRef(*RI);
821 
822             if ((*RI)->isHidden())
823               OS << " hidden";
824 
825             // If requested, dump the redecl chain for this lookup.
826             if (DumpDecls) {
827               // Dump earliest decl first.
828               std::function<void(Decl *)> DumpWithPrev = [&](Decl *D) {
829                 if (Decl *Prev = D->getPreviousDecl())
830                   DumpWithPrev(Prev);
831                 dumpDecl(D);
832               };
833               DumpWithPrev(*RI);
834             }
835           });
836         }
837       });
838     }
839 
840     if (HasUndeserializedLookups) {
841       dumpChild([=] {
842         ColorScope Color(*this, UndeserializedColor);
843         OS << "<undeserialized lookups>";
844       });
845     }
846   });
847 }
848 
849 void ASTDumper::dumpAttr(const Attr *A) {
850   dumpChild([=] {
851     {
852       ColorScope Color(*this, AttrColor);
853 
854       switch (A->getKind()) {
855 #define ATTR(X) case attr::X: OS << #X; break;
856 #include "clang/Basic/AttrList.inc"
857       }
858       OS << "Attr";
859     }
860     dumpPointer(A);
861     dumpSourceRange(A->getRange());
862     if (A->isInherited())
863       OS << " Inherited";
864     if (A->isImplicit())
865       OS << " Implicit";
866 #include "clang/AST/AttrDump.inc"
867   });
868 }
869 
870 static void dumpPreviousDeclImpl(raw_ostream &OS, ...) {}
871 
872 template<typename T>
873 static void dumpPreviousDeclImpl(raw_ostream &OS, const Mergeable<T> *D) {
874   const T *First = D->getFirstDecl();
875   if (First != D)
876     OS << " first " << First;
877 }
878 
879 template<typename T>
880 static void dumpPreviousDeclImpl(raw_ostream &OS, const Redeclarable<T> *D) {
881   const T *Prev = D->getPreviousDecl();
882   if (Prev)
883     OS << " prev " << Prev;
884 }
885 
886 /// Dump the previous declaration in the redeclaration chain for a declaration,
887 /// if any.
888 static void dumpPreviousDecl(raw_ostream &OS, const Decl *D) {
889   switch (D->getKind()) {
890 #define DECL(DERIVED, BASE) \
891   case Decl::DERIVED: \
892     return dumpPreviousDeclImpl(OS, cast<DERIVED##Decl>(D));
893 #define ABSTRACT_DECL(DECL)
894 #include "clang/AST/DeclNodes.inc"
895   }
896   llvm_unreachable("Decl that isn't part of DeclNodes.inc!");
897 }
898 
899 //===----------------------------------------------------------------------===//
900 //  C++ Utilities
901 //===----------------------------------------------------------------------===//
902 
903 void ASTDumper::dumpAccessSpecifier(AccessSpecifier AS) {
904   switch (AS) {
905   case AS_none:
906     break;
907   case AS_public:
908     OS << "public";
909     break;
910   case AS_protected:
911     OS << "protected";
912     break;
913   case AS_private:
914     OS << "private";
915     break;
916   }
917 }
918 
919 void ASTDumper::dumpCXXCtorInitializer(const CXXCtorInitializer *Init) {
920   dumpChild([=] {
921     OS << "CXXCtorInitializer";
922     if (Init->isAnyMemberInitializer()) {
923       OS << ' ';
924       dumpBareDeclRef(Init->getAnyMember());
925     } else if (Init->isBaseInitializer()) {
926       dumpType(QualType(Init->getBaseClass(), 0));
927     } else if (Init->isDelegatingInitializer()) {
928       dumpType(Init->getTypeSourceInfo()->getType());
929     } else {
930       llvm_unreachable("Unknown initializer type");
931     }
932     dumpStmt(Init->getInit());
933   });
934 }
935 
936 void ASTDumper::dumpTemplateParameters(const TemplateParameterList *TPL) {
937   if (!TPL)
938     return;
939 
940   for (TemplateParameterList::const_iterator I = TPL->begin(), E = TPL->end();
941        I != E; ++I)
942     dumpDecl(*I);
943 }
944 
945 void ASTDumper::dumpTemplateArgumentListInfo(
946     const TemplateArgumentListInfo &TALI) {
947   for (unsigned i = 0, e = TALI.size(); i < e; ++i)
948     dumpTemplateArgumentLoc(TALI[i]);
949 }
950 
951 void ASTDumper::dumpTemplateArgumentLoc(const TemplateArgumentLoc &A) {
952   dumpTemplateArgument(A.getArgument(), A.getSourceRange());
953 }
954 
955 void ASTDumper::dumpTemplateArgumentList(const TemplateArgumentList &TAL) {
956   for (unsigned i = 0, e = TAL.size(); i < e; ++i)
957     dumpTemplateArgument(TAL[i]);
958 }
959 
960 void ASTDumper::dumpTemplateArgument(const TemplateArgument &A, SourceRange R) {
961   dumpChild([=] {
962     OS << "TemplateArgument";
963     if (R.isValid())
964       dumpSourceRange(R);
965 
966     switch (A.getKind()) {
967     case TemplateArgument::Null:
968       OS << " null";
969       break;
970     case TemplateArgument::Type:
971       OS << " type";
972       dumpType(A.getAsType());
973       break;
974     case TemplateArgument::Declaration:
975       OS << " decl";
976       dumpDeclRef(A.getAsDecl());
977       break;
978     case TemplateArgument::NullPtr:
979       OS << " nullptr";
980       break;
981     case TemplateArgument::Integral:
982       OS << " integral " << A.getAsIntegral();
983       break;
984     case TemplateArgument::Template:
985       OS << " template ";
986       A.getAsTemplate().dump(OS);
987       break;
988     case TemplateArgument::TemplateExpansion:
989       OS << " template expansion";
990       A.getAsTemplateOrTemplatePattern().dump(OS);
991       break;
992     case TemplateArgument::Expression:
993       OS << " expr";
994       dumpStmt(A.getAsExpr());
995       break;
996     case TemplateArgument::Pack:
997       OS << " pack";
998       for (TemplateArgument::pack_iterator I = A.pack_begin(), E = A.pack_end();
999            I != E; ++I)
1000         dumpTemplateArgument(*I);
1001       break;
1002     }
1003   });
1004 }
1005 
1006 //===----------------------------------------------------------------------===//
1007 //  Objective-C Utilities
1008 //===----------------------------------------------------------------------===//
1009 void ASTDumper::dumpObjCTypeParamList(const ObjCTypeParamList *typeParams) {
1010   if (!typeParams)
1011     return;
1012 
1013   for (auto typeParam : *typeParams) {
1014     dumpDecl(typeParam);
1015   }
1016 }
1017 
1018 //===----------------------------------------------------------------------===//
1019 //  Decl dumping methods.
1020 //===----------------------------------------------------------------------===//
1021 
1022 void ASTDumper::dumpDecl(const Decl *D) {
1023   dumpChild([=] {
1024     if (!D) {
1025       ColorScope Color(*this, NullColor);
1026       OS << "<<<NULL>>>";
1027       return;
1028     }
1029 
1030     {
1031       ColorScope Color(*this, DeclKindNameColor);
1032       OS << D->getDeclKindName() << "Decl";
1033     }
1034     dumpPointer(D);
1035     if (D->getLexicalDeclContext() != D->getDeclContext())
1036       OS << " parent " << cast<Decl>(D->getDeclContext());
1037     dumpPreviousDecl(OS, D);
1038     dumpSourceRange(D->getSourceRange());
1039     OS << ' ';
1040     dumpLocation(D->getLocation());
1041     if (D->isFromASTFile())
1042       OS << " imported";
1043     if (Module *M = D->getOwningModule())
1044       OS << " in " << M->getFullModuleName();
1045     if (auto *ND = dyn_cast<NamedDecl>(D))
1046       for (Module *M : D->getASTContext().getModulesWithMergedDefinition(
1047                const_cast<NamedDecl *>(ND)))
1048         dumpChild([=] { OS << "also in " << M->getFullModuleName(); });
1049     if (const NamedDecl *ND = dyn_cast<NamedDecl>(D))
1050       if (ND->isHidden())
1051         OS << " hidden";
1052     if (D->isImplicit())
1053       OS << " implicit";
1054     if (D->isUsed())
1055       OS << " used";
1056     else if (D->isThisDeclarationReferenced())
1057       OS << " referenced";
1058     if (D->isInvalidDecl())
1059       OS << " invalid";
1060     if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D))
1061       if (FD->isConstexpr())
1062         OS << " constexpr";
1063 
1064 
1065     ConstDeclVisitor<ASTDumper>::Visit(D);
1066 
1067     for (Decl::attr_iterator I = D->attr_begin(), E = D->attr_end(); I != E;
1068          ++I)
1069       dumpAttr(*I);
1070 
1071     if (const FullComment *Comment =
1072             D->getASTContext().getLocalCommentForDeclUncached(D))
1073       dumpFullComment(Comment);
1074 
1075     // Decls within functions are visited by the body.
1076     if (!isa<FunctionDecl>(*D) && !isa<ObjCMethodDecl>(*D) &&
1077         hasNodes(dyn_cast<DeclContext>(D)))
1078       dumpDeclContext(cast<DeclContext>(D));
1079   });
1080 }
1081 
1082 void ASTDumper::VisitLabelDecl(const LabelDecl *D) {
1083   dumpName(D);
1084 }
1085 
1086 void ASTDumper::VisitTypedefDecl(const TypedefDecl *D) {
1087   dumpName(D);
1088   dumpType(D->getUnderlyingType());
1089   if (D->isModulePrivate())
1090     OS << " __module_private__";
1091   dumpTypeAsChild(D->getUnderlyingType());
1092 }
1093 
1094 void ASTDumper::VisitEnumDecl(const EnumDecl *D) {
1095   if (D->isScoped()) {
1096     if (D->isScopedUsingClassTag())
1097       OS << " class";
1098     else
1099       OS << " struct";
1100   }
1101   dumpName(D);
1102   if (D->isModulePrivate())
1103     OS << " __module_private__";
1104   if (D->isFixed())
1105     dumpType(D->getIntegerType());
1106 }
1107 
1108 void ASTDumper::VisitRecordDecl(const RecordDecl *D) {
1109   OS << ' ' << D->getKindName();
1110   dumpName(D);
1111   if (D->isModulePrivate())
1112     OS << " __module_private__";
1113   if (D->isCompleteDefinition())
1114     OS << " definition";
1115 }
1116 
1117 void ASTDumper::VisitEnumConstantDecl(const EnumConstantDecl *D) {
1118   dumpName(D);
1119   dumpType(D->getType());
1120   if (const Expr *Init = D->getInitExpr())
1121     dumpStmt(Init);
1122 }
1123 
1124 void ASTDumper::VisitIndirectFieldDecl(const IndirectFieldDecl *D) {
1125   dumpName(D);
1126   dumpType(D->getType());
1127 
1128   for (auto *Child : D->chain())
1129     dumpDeclRef(Child);
1130 }
1131 
1132 void ASTDumper::VisitFunctionDecl(const FunctionDecl *D) {
1133   dumpName(D);
1134   dumpType(D->getType());
1135 
1136   StorageClass SC = D->getStorageClass();
1137   if (SC != SC_None)
1138     OS << ' ' << VarDecl::getStorageClassSpecifierString(SC);
1139   if (D->isInlineSpecified())
1140     OS << " inline";
1141   if (D->isVirtualAsWritten())
1142     OS << " virtual";
1143   if (D->isModulePrivate())
1144     OS << " __module_private__";
1145 
1146   if (D->isPure())
1147     OS << " pure";
1148   if (D->isDefaulted()) {
1149     OS << " default";
1150     if (D->isDeleted())
1151       OS << "_delete";
1152   }
1153   if (D->isDeletedAsWritten())
1154     OS << " delete";
1155   if (D->isTrivial())
1156     OS << " trivial";
1157 
1158   if (const FunctionProtoType *FPT = D->getType()->getAs<FunctionProtoType>()) {
1159     FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo();
1160     switch (EPI.ExceptionSpec.Type) {
1161     default: break;
1162     case EST_Unevaluated:
1163       OS << " noexcept-unevaluated " << EPI.ExceptionSpec.SourceDecl;
1164       break;
1165     case EST_Uninstantiated:
1166       OS << " noexcept-uninstantiated " << EPI.ExceptionSpec.SourceTemplate;
1167       break;
1168     }
1169   }
1170 
1171   if (const FunctionTemplateSpecializationInfo *FTSI =
1172           D->getTemplateSpecializationInfo())
1173     dumpTemplateArgumentList(*FTSI->TemplateArguments);
1174 
1175   if (!D->param_begin() && D->getNumParams())
1176     dumpChild([=] { OS << "<<NULL params x " << D->getNumParams() << ">>"; });
1177   else
1178     for (const ParmVarDecl *Parameter : D->parameters())
1179       dumpDecl(Parameter);
1180 
1181   if (const CXXConstructorDecl *C = dyn_cast<CXXConstructorDecl>(D))
1182     for (CXXConstructorDecl::init_const_iterator I = C->init_begin(),
1183                                                  E = C->init_end();
1184          I != E; ++I)
1185       dumpCXXCtorInitializer(*I);
1186 
1187   if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(D))
1188     if (MD->size_overridden_methods() != 0) {
1189       auto dumpOverride =
1190         [=](const CXXMethodDecl *D) {
1191           SplitQualType T_split = D->getType().split();
1192           OS << D << " " << D->getParent()->getName() << "::"
1193              << D->getNameAsString() << " '" << QualType::getAsString(T_split) << "'";
1194         };
1195 
1196       dumpChild([=] {
1197         auto FirstOverrideItr = MD->begin_overridden_methods();
1198         OS << "Overrides: [ ";
1199         dumpOverride(*FirstOverrideItr);
1200         for (const auto *Override :
1201                llvm::make_range(FirstOverrideItr + 1,
1202                                 MD->end_overridden_methods()))
1203           dumpOverride(Override);
1204         OS << " ]";
1205       });
1206     }
1207 
1208   if (D->doesThisDeclarationHaveABody())
1209     dumpStmt(D->getBody());
1210 }
1211 
1212 void ASTDumper::VisitFieldDecl(const FieldDecl *D) {
1213   dumpName(D);
1214   dumpType(D->getType());
1215   if (D->isMutable())
1216     OS << " mutable";
1217   if (D->isModulePrivate())
1218     OS << " __module_private__";
1219 
1220   if (D->isBitField())
1221     dumpStmt(D->getBitWidth());
1222   if (Expr *Init = D->getInClassInitializer())
1223     dumpStmt(Init);
1224 }
1225 
1226 void ASTDumper::VisitVarDecl(const VarDecl *D) {
1227   dumpName(D);
1228   dumpType(D->getType());
1229   StorageClass SC = D->getStorageClass();
1230   if (SC != SC_None)
1231     OS << ' ' << VarDecl::getStorageClassSpecifierString(SC);
1232   switch (D->getTLSKind()) {
1233   case VarDecl::TLS_None: break;
1234   case VarDecl::TLS_Static: OS << " tls"; break;
1235   case VarDecl::TLS_Dynamic: OS << " tls_dynamic"; break;
1236   }
1237   if (D->isModulePrivate())
1238     OS << " __module_private__";
1239   if (D->isNRVOVariable())
1240     OS << " nrvo";
1241   if (D->isInline())
1242     OS << " inline";
1243   if (D->isConstexpr())
1244     OS << " constexpr";
1245   if (D->hasInit()) {
1246     switch (D->getInitStyle()) {
1247     case VarDecl::CInit: OS << " cinit"; break;
1248     case VarDecl::CallInit: OS << " callinit"; break;
1249     case VarDecl::ListInit: OS << " listinit"; break;
1250     }
1251     dumpStmt(D->getInit());
1252   }
1253 }
1254 
1255 void ASTDumper::VisitDecompositionDecl(const DecompositionDecl *D) {
1256   VisitVarDecl(D);
1257   for (auto *B : D->bindings())
1258     dumpDecl(B);
1259 }
1260 
1261 void ASTDumper::VisitBindingDecl(const BindingDecl *D) {
1262   dumpName(D);
1263   dumpType(D->getType());
1264   if (auto *E = D->getBinding())
1265     dumpStmt(E);
1266 }
1267 
1268 void ASTDumper::VisitFileScopeAsmDecl(const FileScopeAsmDecl *D) {
1269   dumpStmt(D->getAsmString());
1270 }
1271 
1272 void ASTDumper::VisitImportDecl(const ImportDecl *D) {
1273   OS << ' ' << D->getImportedModule()->getFullModuleName();
1274 }
1275 
1276 void ASTDumper::VisitPragmaCommentDecl(const PragmaCommentDecl *D) {
1277   OS << ' ';
1278   switch (D->getCommentKind()) {
1279   case PCK_Unknown:  llvm_unreachable("unexpected pragma comment kind");
1280   case PCK_Compiler: OS << "compiler"; break;
1281   case PCK_ExeStr:   OS << "exestr"; break;
1282   case PCK_Lib:      OS << "lib"; break;
1283   case PCK_Linker:   OS << "linker"; break;
1284   case PCK_User:     OS << "user"; break;
1285   }
1286   StringRef Arg = D->getArg();
1287   if (!Arg.empty())
1288     OS << " \"" << Arg << "\"";
1289 }
1290 
1291 void ASTDumper::VisitPragmaDetectMismatchDecl(
1292     const PragmaDetectMismatchDecl *D) {
1293   OS << " \"" << D->getName() << "\" \"" << D->getValue() << "\"";
1294 }
1295 
1296 void ASTDumper::VisitCapturedDecl(const CapturedDecl *D) {
1297   dumpStmt(D->getBody());
1298 }
1299 
1300 //===----------------------------------------------------------------------===//
1301 // OpenMP Declarations
1302 //===----------------------------------------------------------------------===//
1303 
1304 void ASTDumper::VisitOMPThreadPrivateDecl(const OMPThreadPrivateDecl *D) {
1305   for (auto *E : D->varlists())
1306     dumpStmt(E);
1307 }
1308 
1309 void ASTDumper::VisitOMPDeclareReductionDecl(const OMPDeclareReductionDecl *D) {
1310   dumpName(D);
1311   dumpType(D->getType());
1312   OS << " combiner";
1313   dumpStmt(D->getCombiner());
1314   if (auto *Initializer = D->getInitializer()) {
1315     OS << " initializer";
1316     dumpStmt(Initializer);
1317   }
1318 }
1319 
1320 void ASTDumper::VisitOMPCapturedExprDecl(const OMPCapturedExprDecl *D) {
1321   dumpName(D);
1322   dumpType(D->getType());
1323   dumpStmt(D->getInit());
1324 }
1325 
1326 //===----------------------------------------------------------------------===//
1327 // C++ Declarations
1328 //===----------------------------------------------------------------------===//
1329 
1330 void ASTDumper::VisitNamespaceDecl(const NamespaceDecl *D) {
1331   dumpName(D);
1332   if (D->isInline())
1333     OS << " inline";
1334   if (!D->isOriginalNamespace())
1335     dumpDeclRef(D->getOriginalNamespace(), "original");
1336 }
1337 
1338 void ASTDumper::VisitUsingDirectiveDecl(const UsingDirectiveDecl *D) {
1339   OS << ' ';
1340   dumpBareDeclRef(D->getNominatedNamespace());
1341 }
1342 
1343 void ASTDumper::VisitNamespaceAliasDecl(const NamespaceAliasDecl *D) {
1344   dumpName(D);
1345   dumpDeclRef(D->getAliasedNamespace());
1346 }
1347 
1348 void ASTDumper::VisitTypeAliasDecl(const TypeAliasDecl *D) {
1349   dumpName(D);
1350   dumpType(D->getUnderlyingType());
1351   dumpTypeAsChild(D->getUnderlyingType());
1352 }
1353 
1354 void ASTDumper::VisitTypeAliasTemplateDecl(const TypeAliasTemplateDecl *D) {
1355   dumpName(D);
1356   dumpTemplateParameters(D->getTemplateParameters());
1357   dumpDecl(D->getTemplatedDecl());
1358 }
1359 
1360 void ASTDumper::VisitCXXRecordDecl(const CXXRecordDecl *D) {
1361   VisitRecordDecl(D);
1362   if (!D->isCompleteDefinition())
1363     return;
1364 
1365   for (const auto &I : D->bases()) {
1366     dumpChild([=] {
1367       if (I.isVirtual())
1368         OS << "virtual ";
1369       dumpAccessSpecifier(I.getAccessSpecifier());
1370       dumpType(I.getType());
1371       if (I.isPackExpansion())
1372         OS << "...";
1373     });
1374   }
1375 }
1376 
1377 void ASTDumper::VisitStaticAssertDecl(const StaticAssertDecl *D) {
1378   dumpStmt(D->getAssertExpr());
1379   dumpStmt(D->getMessage());
1380 }
1381 
1382 template<typename SpecializationDecl>
1383 void ASTDumper::VisitTemplateDeclSpecialization(const SpecializationDecl *D,
1384                                                 bool DumpExplicitInst,
1385                                                 bool DumpRefOnly) {
1386   bool DumpedAny = false;
1387   for (auto *RedeclWithBadType : D->redecls()) {
1388     // FIXME: The redecls() range sometimes has elements of a less-specific
1389     // type. (In particular, ClassTemplateSpecializationDecl::redecls() gives
1390     // us TagDecls, and should give CXXRecordDecls).
1391     auto *Redecl = dyn_cast<SpecializationDecl>(RedeclWithBadType);
1392     if (!Redecl) {
1393       // Found the injected-class-name for a class template. This will be dumped
1394       // as part of its surrounding class so we don't need to dump it here.
1395       assert(isa<CXXRecordDecl>(RedeclWithBadType) &&
1396              "expected an injected-class-name");
1397       continue;
1398     }
1399 
1400     switch (Redecl->getTemplateSpecializationKind()) {
1401     case TSK_ExplicitInstantiationDeclaration:
1402     case TSK_ExplicitInstantiationDefinition:
1403       if (!DumpExplicitInst)
1404         break;
1405       // Fall through.
1406     case TSK_Undeclared:
1407     case TSK_ImplicitInstantiation:
1408       if (DumpRefOnly)
1409         dumpDeclRef(Redecl);
1410       else
1411         dumpDecl(Redecl);
1412       DumpedAny = true;
1413       break;
1414     case TSK_ExplicitSpecialization:
1415       break;
1416     }
1417   }
1418 
1419   // Ensure we dump at least one decl for each specialization.
1420   if (!DumpedAny)
1421     dumpDeclRef(D);
1422 }
1423 
1424 template<typename TemplateDecl>
1425 void ASTDumper::VisitTemplateDecl(const TemplateDecl *D,
1426                                   bool DumpExplicitInst) {
1427   dumpName(D);
1428   dumpTemplateParameters(D->getTemplateParameters());
1429 
1430   dumpDecl(D->getTemplatedDecl());
1431 
1432   for (auto *Child : D->specializations())
1433     VisitTemplateDeclSpecialization(Child, DumpExplicitInst,
1434                                     !D->isCanonicalDecl());
1435 }
1436 
1437 void ASTDumper::VisitFunctionTemplateDecl(const FunctionTemplateDecl *D) {
1438   // FIXME: We don't add a declaration of a function template specialization
1439   // to its context when it's explicitly instantiated, so dump explicit
1440   // instantiations when we dump the template itself.
1441   VisitTemplateDecl(D, true);
1442 }
1443 
1444 void ASTDumper::VisitClassTemplateDecl(const ClassTemplateDecl *D) {
1445   VisitTemplateDecl(D, false);
1446 }
1447 
1448 void ASTDumper::VisitClassTemplateSpecializationDecl(
1449     const ClassTemplateSpecializationDecl *D) {
1450   VisitCXXRecordDecl(D);
1451   dumpTemplateArgumentList(D->getTemplateArgs());
1452 }
1453 
1454 void ASTDumper::VisitClassTemplatePartialSpecializationDecl(
1455     const ClassTemplatePartialSpecializationDecl *D) {
1456   VisitClassTemplateSpecializationDecl(D);
1457   dumpTemplateParameters(D->getTemplateParameters());
1458 }
1459 
1460 void ASTDumper::VisitClassScopeFunctionSpecializationDecl(
1461     const ClassScopeFunctionSpecializationDecl *D) {
1462   dumpDeclRef(D->getSpecialization());
1463   if (D->hasExplicitTemplateArgs())
1464     dumpTemplateArgumentListInfo(D->templateArgs());
1465 }
1466 
1467 void ASTDumper::VisitVarTemplateDecl(const VarTemplateDecl *D) {
1468   VisitTemplateDecl(D, false);
1469 }
1470 
1471 void ASTDumper::VisitBuiltinTemplateDecl(const BuiltinTemplateDecl *D) {
1472   dumpName(D);
1473   dumpTemplateParameters(D->getTemplateParameters());
1474 }
1475 
1476 void ASTDumper::VisitVarTemplateSpecializationDecl(
1477     const VarTemplateSpecializationDecl *D) {
1478   dumpTemplateArgumentList(D->getTemplateArgs());
1479   VisitVarDecl(D);
1480 }
1481 
1482 void ASTDumper::VisitVarTemplatePartialSpecializationDecl(
1483     const VarTemplatePartialSpecializationDecl *D) {
1484   dumpTemplateParameters(D->getTemplateParameters());
1485   VisitVarTemplateSpecializationDecl(D);
1486 }
1487 
1488 void ASTDumper::VisitTemplateTypeParmDecl(const TemplateTypeParmDecl *D) {
1489   if (D->wasDeclaredWithTypename())
1490     OS << " typename";
1491   else
1492     OS << " class";
1493   OS << " depth " << D->getDepth() << " index " << D->getIndex();
1494   if (D->isParameterPack())
1495     OS << " ...";
1496   dumpName(D);
1497   if (D->hasDefaultArgument())
1498     dumpTemplateArgument(D->getDefaultArgument());
1499 }
1500 
1501 void ASTDumper::VisitNonTypeTemplateParmDecl(const NonTypeTemplateParmDecl *D) {
1502   dumpType(D->getType());
1503   OS << " depth " << D->getDepth() << " index " << D->getIndex();
1504   if (D->isParameterPack())
1505     OS << " ...";
1506   dumpName(D);
1507   if (D->hasDefaultArgument())
1508     dumpTemplateArgument(D->getDefaultArgument());
1509 }
1510 
1511 void ASTDumper::VisitTemplateTemplateParmDecl(
1512     const TemplateTemplateParmDecl *D) {
1513   OS << " depth " << D->getDepth() << " index " << D->getIndex();
1514   if (D->isParameterPack())
1515     OS << " ...";
1516   dumpName(D);
1517   dumpTemplateParameters(D->getTemplateParameters());
1518   if (D->hasDefaultArgument())
1519     dumpTemplateArgumentLoc(D->getDefaultArgument());
1520 }
1521 
1522 void ASTDumper::VisitUsingDecl(const UsingDecl *D) {
1523   OS << ' ';
1524   if (D->getQualifier())
1525     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
1526   OS << D->getNameAsString();
1527 }
1528 
1529 void ASTDumper::VisitUnresolvedUsingTypenameDecl(
1530     const UnresolvedUsingTypenameDecl *D) {
1531   OS << ' ';
1532   if (D->getQualifier())
1533     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
1534   OS << D->getNameAsString();
1535 }
1536 
1537 void ASTDumper::VisitUnresolvedUsingValueDecl(const UnresolvedUsingValueDecl *D) {
1538   OS << ' ';
1539   if (D->getQualifier())
1540     D->getQualifier()->print(OS, D->getASTContext().getPrintingPolicy());
1541   OS << D->getNameAsString();
1542   dumpType(D->getType());
1543 }
1544 
1545 void ASTDumper::VisitUsingShadowDecl(const UsingShadowDecl *D) {
1546   OS << ' ';
1547   dumpBareDeclRef(D->getTargetDecl());
1548   if (auto *TD = dyn_cast<TypeDecl>(D->getUnderlyingDecl()))
1549     dumpTypeAsChild(TD->getTypeForDecl());
1550 }
1551 
1552 void ASTDumper::VisitConstructorUsingShadowDecl(
1553     const ConstructorUsingShadowDecl *D) {
1554   if (D->constructsVirtualBase())
1555     OS << " virtual";
1556 
1557   dumpChild([=] {
1558     OS << "target ";
1559     dumpBareDeclRef(D->getTargetDecl());
1560   });
1561 
1562   dumpChild([=] {
1563     OS << "nominated ";
1564     dumpBareDeclRef(D->getNominatedBaseClass());
1565     OS << ' ';
1566     dumpBareDeclRef(D->getNominatedBaseClassShadowDecl());
1567   });
1568 
1569   dumpChild([=] {
1570     OS << "constructed ";
1571     dumpBareDeclRef(D->getConstructedBaseClass());
1572     OS << ' ';
1573     dumpBareDeclRef(D->getConstructedBaseClassShadowDecl());
1574   });
1575 }
1576 
1577 void ASTDumper::VisitLinkageSpecDecl(const LinkageSpecDecl *D) {
1578   switch (D->getLanguage()) {
1579   case LinkageSpecDecl::lang_c: OS << " C"; break;
1580   case LinkageSpecDecl::lang_cxx: OS << " C++"; break;
1581   }
1582 }
1583 
1584 void ASTDumper::VisitAccessSpecDecl(const AccessSpecDecl *D) {
1585   OS << ' ';
1586   dumpAccessSpecifier(D->getAccess());
1587 }
1588 
1589 void ASTDumper::VisitFriendDecl(const FriendDecl *D) {
1590   if (TypeSourceInfo *T = D->getFriendType())
1591     dumpType(T->getType());
1592   else
1593     dumpDecl(D->getFriendDecl());
1594 }
1595 
1596 //===----------------------------------------------------------------------===//
1597 // Obj-C Declarations
1598 //===----------------------------------------------------------------------===//
1599 
1600 void ASTDumper::VisitObjCIvarDecl(const ObjCIvarDecl *D) {
1601   dumpName(D);
1602   dumpType(D->getType());
1603   if (D->getSynthesize())
1604     OS << " synthesize";
1605 
1606   switch (D->getAccessControl()) {
1607   case ObjCIvarDecl::None:
1608     OS << " none";
1609     break;
1610   case ObjCIvarDecl::Private:
1611     OS << " private";
1612     break;
1613   case ObjCIvarDecl::Protected:
1614     OS << " protected";
1615     break;
1616   case ObjCIvarDecl::Public:
1617     OS << " public";
1618     break;
1619   case ObjCIvarDecl::Package:
1620     OS << " package";
1621     break;
1622   }
1623 }
1624 
1625 void ASTDumper::VisitObjCMethodDecl(const ObjCMethodDecl *D) {
1626   if (D->isInstanceMethod())
1627     OS << " -";
1628   else
1629     OS << " +";
1630   dumpName(D);
1631   dumpType(D->getReturnType());
1632 
1633   if (D->isThisDeclarationADefinition()) {
1634     dumpDeclContext(D);
1635   } else {
1636     for (const ParmVarDecl *Parameter : D->parameters())
1637       dumpDecl(Parameter);
1638   }
1639 
1640   if (D->isVariadic())
1641     dumpChild([=] { OS << "..."; });
1642 
1643   if (D->hasBody())
1644     dumpStmt(D->getBody());
1645 }
1646 
1647 void ASTDumper::VisitObjCTypeParamDecl(const ObjCTypeParamDecl *D) {
1648   dumpName(D);
1649   switch (D->getVariance()) {
1650   case ObjCTypeParamVariance::Invariant:
1651     break;
1652 
1653   case ObjCTypeParamVariance::Covariant:
1654     OS << " covariant";
1655     break;
1656 
1657   case ObjCTypeParamVariance::Contravariant:
1658     OS << " contravariant";
1659     break;
1660   }
1661 
1662   if (D->hasExplicitBound())
1663     OS << " bounded";
1664   dumpType(D->getUnderlyingType());
1665 }
1666 
1667 void ASTDumper::VisitObjCCategoryDecl(const ObjCCategoryDecl *D) {
1668   dumpName(D);
1669   dumpDeclRef(D->getClassInterface());
1670   dumpObjCTypeParamList(D->getTypeParamList());
1671   dumpDeclRef(D->getImplementation());
1672   for (ObjCCategoryDecl::protocol_iterator I = D->protocol_begin(),
1673                                            E = D->protocol_end();
1674        I != E; ++I)
1675     dumpDeclRef(*I);
1676 }
1677 
1678 void ASTDumper::VisitObjCCategoryImplDecl(const ObjCCategoryImplDecl *D) {
1679   dumpName(D);
1680   dumpDeclRef(D->getClassInterface());
1681   dumpDeclRef(D->getCategoryDecl());
1682 }
1683 
1684 void ASTDumper::VisitObjCProtocolDecl(const ObjCProtocolDecl *D) {
1685   dumpName(D);
1686 
1687   for (auto *Child : D->protocols())
1688     dumpDeclRef(Child);
1689 }
1690 
1691 void ASTDumper::VisitObjCInterfaceDecl(const ObjCInterfaceDecl *D) {
1692   dumpName(D);
1693   dumpObjCTypeParamList(D->getTypeParamListAsWritten());
1694   dumpDeclRef(D->getSuperClass(), "super");
1695 
1696   dumpDeclRef(D->getImplementation());
1697   for (auto *Child : D->protocols())
1698     dumpDeclRef(Child);
1699 }
1700 
1701 void ASTDumper::VisitObjCImplementationDecl(const ObjCImplementationDecl *D) {
1702   dumpName(D);
1703   dumpDeclRef(D->getSuperClass(), "super");
1704   dumpDeclRef(D->getClassInterface());
1705   for (ObjCImplementationDecl::init_const_iterator I = D->init_begin(),
1706                                                    E = D->init_end();
1707        I != E; ++I)
1708     dumpCXXCtorInitializer(*I);
1709 }
1710 
1711 void ASTDumper::VisitObjCCompatibleAliasDecl(const ObjCCompatibleAliasDecl *D) {
1712   dumpName(D);
1713   dumpDeclRef(D->getClassInterface());
1714 }
1715 
1716 void ASTDumper::VisitObjCPropertyDecl(const ObjCPropertyDecl *D) {
1717   dumpName(D);
1718   dumpType(D->getType());
1719 
1720   if (D->getPropertyImplementation() == ObjCPropertyDecl::Required)
1721     OS << " required";
1722   else if (D->getPropertyImplementation() == ObjCPropertyDecl::Optional)
1723     OS << " optional";
1724 
1725   ObjCPropertyDecl::PropertyAttributeKind Attrs = D->getPropertyAttributes();
1726   if (Attrs != ObjCPropertyDecl::OBJC_PR_noattr) {
1727     if (Attrs & ObjCPropertyDecl::OBJC_PR_readonly)
1728       OS << " readonly";
1729     if (Attrs & ObjCPropertyDecl::OBJC_PR_assign)
1730       OS << " assign";
1731     if (Attrs & ObjCPropertyDecl::OBJC_PR_readwrite)
1732       OS << " readwrite";
1733     if (Attrs & ObjCPropertyDecl::OBJC_PR_retain)
1734       OS << " retain";
1735     if (Attrs & ObjCPropertyDecl::OBJC_PR_copy)
1736       OS << " copy";
1737     if (Attrs & ObjCPropertyDecl::OBJC_PR_nonatomic)
1738       OS << " nonatomic";
1739     if (Attrs & ObjCPropertyDecl::OBJC_PR_atomic)
1740       OS << " atomic";
1741     if (Attrs & ObjCPropertyDecl::OBJC_PR_weak)
1742       OS << " weak";
1743     if (Attrs & ObjCPropertyDecl::OBJC_PR_strong)
1744       OS << " strong";
1745     if (Attrs & ObjCPropertyDecl::OBJC_PR_unsafe_unretained)
1746       OS << " unsafe_unretained";
1747     if (Attrs & ObjCPropertyDecl::OBJC_PR_class)
1748       OS << " class";
1749     if (Attrs & ObjCPropertyDecl::OBJC_PR_getter)
1750       dumpDeclRef(D->getGetterMethodDecl(), "getter");
1751     if (Attrs & ObjCPropertyDecl::OBJC_PR_setter)
1752       dumpDeclRef(D->getSetterMethodDecl(), "setter");
1753   }
1754 }
1755 
1756 void ASTDumper::VisitObjCPropertyImplDecl(const ObjCPropertyImplDecl *D) {
1757   dumpName(D->getPropertyDecl());
1758   if (D->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize)
1759     OS << " synthesize";
1760   else
1761     OS << " dynamic";
1762   dumpDeclRef(D->getPropertyDecl());
1763   dumpDeclRef(D->getPropertyIvarDecl());
1764 }
1765 
1766 void ASTDumper::VisitBlockDecl(const BlockDecl *D) {
1767   for (auto I : D->parameters())
1768     dumpDecl(I);
1769 
1770   if (D->isVariadic())
1771     dumpChild([=]{ OS << "..."; });
1772 
1773   if (D->capturesCXXThis())
1774     dumpChild([=]{ OS << "capture this"; });
1775 
1776   for (const auto &I : D->captures()) {
1777     dumpChild([=] {
1778       OS << "capture";
1779       if (I.isByRef())
1780         OS << " byref";
1781       if (I.isNested())
1782         OS << " nested";
1783       if (I.getVariable()) {
1784         OS << ' ';
1785         dumpBareDeclRef(I.getVariable());
1786       }
1787       if (I.hasCopyExpr())
1788         dumpStmt(I.getCopyExpr());
1789     });
1790   }
1791   dumpStmt(D->getBody());
1792 }
1793 
1794 //===----------------------------------------------------------------------===//
1795 //  Stmt dumping methods.
1796 //===----------------------------------------------------------------------===//
1797 
1798 void ASTDumper::dumpStmt(const Stmt *S) {
1799   dumpChild([=] {
1800     if (!S) {
1801       ColorScope Color(*this, NullColor);
1802       OS << "<<<NULL>>>";
1803       return;
1804     }
1805 
1806     if (const DeclStmt *DS = dyn_cast<DeclStmt>(S)) {
1807       VisitDeclStmt(DS);
1808       return;
1809     }
1810 
1811     ConstStmtVisitor<ASTDumper>::Visit(S);
1812 
1813     for (const Stmt *SubStmt : S->children())
1814       dumpStmt(SubStmt);
1815   });
1816 }
1817 
1818 void ASTDumper::VisitStmt(const Stmt *Node) {
1819   {
1820     ColorScope Color(*this, StmtColor);
1821     OS << Node->getStmtClassName();
1822   }
1823   dumpPointer(Node);
1824   dumpSourceRange(Node->getSourceRange());
1825 }
1826 
1827 void ASTDumper::VisitDeclStmt(const DeclStmt *Node) {
1828   VisitStmt(Node);
1829   for (DeclStmt::const_decl_iterator I = Node->decl_begin(),
1830                                      E = Node->decl_end();
1831        I != E; ++I)
1832     dumpDecl(*I);
1833 }
1834 
1835 void ASTDumper::VisitAttributedStmt(const AttributedStmt *Node) {
1836   VisitStmt(Node);
1837   for (ArrayRef<const Attr *>::iterator I = Node->getAttrs().begin(),
1838                                         E = Node->getAttrs().end();
1839        I != E; ++I)
1840     dumpAttr(*I);
1841 }
1842 
1843 void ASTDumper::VisitLabelStmt(const LabelStmt *Node) {
1844   VisitStmt(Node);
1845   OS << " '" << Node->getName() << "'";
1846 }
1847 
1848 void ASTDumper::VisitGotoStmt(const GotoStmt *Node) {
1849   VisitStmt(Node);
1850   OS << " '" << Node->getLabel()->getName() << "'";
1851   dumpPointer(Node->getLabel());
1852 }
1853 
1854 void ASTDumper::VisitCXXCatchStmt(const CXXCatchStmt *Node) {
1855   VisitStmt(Node);
1856   dumpDecl(Node->getExceptionDecl());
1857 }
1858 
1859 void ASTDumper::VisitCapturedStmt(const CapturedStmt *Node) {
1860   VisitStmt(Node);
1861   dumpDecl(Node->getCapturedDecl());
1862 }
1863 
1864 //===----------------------------------------------------------------------===//
1865 //  OpenMP dumping methods.
1866 //===----------------------------------------------------------------------===//
1867 
1868 void ASTDumper::VisitOMPExecutableDirective(
1869     const OMPExecutableDirective *Node) {
1870   VisitStmt(Node);
1871   for (auto *C : Node->clauses()) {
1872     dumpChild([=] {
1873       if (!C) {
1874         ColorScope Color(*this, NullColor);
1875         OS << "<<<NULL>>> OMPClause";
1876         return;
1877       }
1878       {
1879         ColorScope Color(*this, AttrColor);
1880         StringRef ClauseName(getOpenMPClauseName(C->getClauseKind()));
1881         OS << "OMP" << ClauseName.substr(/*Start=*/0, /*N=*/1).upper()
1882            << ClauseName.drop_front() << "Clause";
1883       }
1884       dumpPointer(C);
1885       dumpSourceRange(SourceRange(C->getLocStart(), C->getLocEnd()));
1886       if (C->isImplicit())
1887         OS << " <implicit>";
1888       for (auto *S : C->children())
1889         dumpStmt(S);
1890     });
1891   }
1892 }
1893 
1894 //===----------------------------------------------------------------------===//
1895 //  Expr dumping methods.
1896 //===----------------------------------------------------------------------===//
1897 
1898 void ASTDumper::VisitExpr(const Expr *Node) {
1899   VisitStmt(Node);
1900   dumpType(Node->getType());
1901 
1902   {
1903     ColorScope Color(*this, ValueKindColor);
1904     switch (Node->getValueKind()) {
1905     case VK_RValue:
1906       break;
1907     case VK_LValue:
1908       OS << " lvalue";
1909       break;
1910     case VK_XValue:
1911       OS << " xvalue";
1912       break;
1913     }
1914   }
1915 
1916   {
1917     ColorScope Color(*this, ObjectKindColor);
1918     switch (Node->getObjectKind()) {
1919     case OK_Ordinary:
1920       break;
1921     case OK_BitField:
1922       OS << " bitfield";
1923       break;
1924     case OK_ObjCProperty:
1925       OS << " objcproperty";
1926       break;
1927     case OK_ObjCSubscript:
1928       OS << " objcsubscript";
1929       break;
1930     case OK_VectorComponent:
1931       OS << " vectorcomponent";
1932       break;
1933     }
1934   }
1935 }
1936 
1937 static void dumpBasePath(raw_ostream &OS, const CastExpr *Node) {
1938   if (Node->path_empty())
1939     return;
1940 
1941   OS << " (";
1942   bool First = true;
1943   for (CastExpr::path_const_iterator I = Node->path_begin(),
1944                                      E = Node->path_end();
1945        I != E; ++I) {
1946     const CXXBaseSpecifier *Base = *I;
1947     if (!First)
1948       OS << " -> ";
1949 
1950     const CXXRecordDecl *RD =
1951     cast<CXXRecordDecl>(Base->getType()->getAs<RecordType>()->getDecl());
1952 
1953     if (Base->isVirtual())
1954       OS << "virtual ";
1955     OS << RD->getName();
1956     First = false;
1957   }
1958 
1959   OS << ')';
1960 }
1961 
1962 void ASTDumper::VisitCastExpr(const CastExpr *Node) {
1963   VisitExpr(Node);
1964   OS << " <";
1965   {
1966     ColorScope Color(*this, CastColor);
1967     OS << Node->getCastKindName();
1968   }
1969   dumpBasePath(OS, Node);
1970   OS << ">";
1971 }
1972 
1973 void ASTDumper::VisitDeclRefExpr(const DeclRefExpr *Node) {
1974   VisitExpr(Node);
1975 
1976   OS << " ";
1977   dumpBareDeclRef(Node->getDecl());
1978   if (Node->getDecl() != Node->getFoundDecl()) {
1979     OS << " (";
1980     dumpBareDeclRef(Node->getFoundDecl());
1981     OS << ")";
1982   }
1983 }
1984 
1985 void ASTDumper::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *Node) {
1986   VisitExpr(Node);
1987   OS << " (";
1988   if (!Node->requiresADL())
1989     OS << "no ";
1990   OS << "ADL) = '" << Node->getName() << '\'';
1991 
1992   UnresolvedLookupExpr::decls_iterator
1993     I = Node->decls_begin(), E = Node->decls_end();
1994   if (I == E)
1995     OS << " empty";
1996   for (; I != E; ++I)
1997     dumpPointer(*I);
1998 }
1999 
2000 void ASTDumper::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *Node) {
2001   VisitExpr(Node);
2002 
2003   {
2004     ColorScope Color(*this, DeclKindNameColor);
2005     OS << " " << Node->getDecl()->getDeclKindName() << "Decl";
2006   }
2007   OS << "='" << *Node->getDecl() << "'";
2008   dumpPointer(Node->getDecl());
2009   if (Node->isFreeIvar())
2010     OS << " isFreeIvar";
2011 }
2012 
2013 void ASTDumper::VisitPredefinedExpr(const PredefinedExpr *Node) {
2014   VisitExpr(Node);
2015   OS << " " << PredefinedExpr::getIdentTypeName(Node->getIdentType());
2016 }
2017 
2018 void ASTDumper::VisitCharacterLiteral(const CharacterLiteral *Node) {
2019   VisitExpr(Node);
2020   ColorScope Color(*this, ValueColor);
2021   OS << " " << Node->getValue();
2022 }
2023 
2024 void ASTDumper::VisitIntegerLiteral(const IntegerLiteral *Node) {
2025   VisitExpr(Node);
2026 
2027   bool isSigned = Node->getType()->isSignedIntegerType();
2028   ColorScope Color(*this, ValueColor);
2029   OS << " " << Node->getValue().toString(10, isSigned);
2030 }
2031 
2032 void ASTDumper::VisitFloatingLiteral(const FloatingLiteral *Node) {
2033   VisitExpr(Node);
2034   ColorScope Color(*this, ValueColor);
2035   OS << " " << Node->getValueAsApproximateDouble();
2036 }
2037 
2038 void ASTDumper::VisitStringLiteral(const StringLiteral *Str) {
2039   VisitExpr(Str);
2040   ColorScope Color(*this, ValueColor);
2041   OS << " ";
2042   Str->outputString(OS);
2043 }
2044 
2045 void ASTDumper::VisitInitListExpr(const InitListExpr *ILE) {
2046   VisitExpr(ILE);
2047   if (auto *Filler = ILE->getArrayFiller()) {
2048     dumpChild([=] {
2049       OS << "array filler";
2050       dumpStmt(Filler);
2051     });
2052   }
2053   if (auto *Field = ILE->getInitializedFieldInUnion()) {
2054     OS << " field ";
2055     dumpBareDeclRef(Field);
2056   }
2057 }
2058 
2059 void ASTDumper::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *E) {
2060   VisitExpr(E);
2061 }
2062 
2063 void ASTDumper::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *E) {
2064   VisitExpr(E);
2065 }
2066 
2067 void ASTDumper::VisitUnaryOperator(const UnaryOperator *Node) {
2068   VisitExpr(Node);
2069   OS << " " << (Node->isPostfix() ? "postfix" : "prefix")
2070      << " '" << UnaryOperator::getOpcodeStr(Node->getOpcode()) << "'";
2071 }
2072 
2073 void ASTDumper::VisitUnaryExprOrTypeTraitExpr(
2074     const UnaryExprOrTypeTraitExpr *Node) {
2075   VisitExpr(Node);
2076   switch(Node->getKind()) {
2077   case UETT_SizeOf:
2078     OS << " sizeof";
2079     break;
2080   case UETT_AlignOf:
2081     OS << " alignof";
2082     break;
2083   case UETT_VecStep:
2084     OS << " vec_step";
2085     break;
2086   case UETT_OpenMPRequiredSimdAlign:
2087     OS << " __builtin_omp_required_simd_align";
2088     break;
2089   }
2090   if (Node->isArgumentType())
2091     dumpType(Node->getArgumentType());
2092 }
2093 
2094 void ASTDumper::VisitMemberExpr(const MemberExpr *Node) {
2095   VisitExpr(Node);
2096   OS << " " << (Node->isArrow() ? "->" : ".") << *Node->getMemberDecl();
2097   dumpPointer(Node->getMemberDecl());
2098 }
2099 
2100 void ASTDumper::VisitExtVectorElementExpr(const ExtVectorElementExpr *Node) {
2101   VisitExpr(Node);
2102   OS << " " << Node->getAccessor().getNameStart();
2103 }
2104 
2105 void ASTDumper::VisitBinaryOperator(const BinaryOperator *Node) {
2106   VisitExpr(Node);
2107   OS << " '" << BinaryOperator::getOpcodeStr(Node->getOpcode()) << "'";
2108 }
2109 
2110 void ASTDumper::VisitCompoundAssignOperator(
2111     const CompoundAssignOperator *Node) {
2112   VisitExpr(Node);
2113   OS << " '" << BinaryOperator::getOpcodeStr(Node->getOpcode())
2114      << "' ComputeLHSTy=";
2115   dumpBareType(Node->getComputationLHSType());
2116   OS << " ComputeResultTy=";
2117   dumpBareType(Node->getComputationResultType());
2118 }
2119 
2120 void ASTDumper::VisitBlockExpr(const BlockExpr *Node) {
2121   VisitExpr(Node);
2122   dumpDecl(Node->getBlockDecl());
2123 }
2124 
2125 void ASTDumper::VisitOpaqueValueExpr(const OpaqueValueExpr *Node) {
2126   VisitExpr(Node);
2127 
2128   if (Expr *Source = Node->getSourceExpr())
2129     dumpStmt(Source);
2130 }
2131 
2132 // GNU extensions.
2133 
2134 void ASTDumper::VisitAddrLabelExpr(const AddrLabelExpr *Node) {
2135   VisitExpr(Node);
2136   OS << " " << Node->getLabel()->getName();
2137   dumpPointer(Node->getLabel());
2138 }
2139 
2140 //===----------------------------------------------------------------------===//
2141 // C++ Expressions
2142 //===----------------------------------------------------------------------===//
2143 
2144 void ASTDumper::VisitCXXNamedCastExpr(const CXXNamedCastExpr *Node) {
2145   VisitExpr(Node);
2146   OS << " " << Node->getCastName()
2147      << "<" << Node->getTypeAsWritten().getAsString() << ">"
2148      << " <" << Node->getCastKindName();
2149   dumpBasePath(OS, Node);
2150   OS << ">";
2151 }
2152 
2153 void ASTDumper::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *Node) {
2154   VisitExpr(Node);
2155   OS << " " << (Node->getValue() ? "true" : "false");
2156 }
2157 
2158 void ASTDumper::VisitCXXThisExpr(const CXXThisExpr *Node) {
2159   VisitExpr(Node);
2160   OS << " this";
2161 }
2162 
2163 void ASTDumper::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *Node) {
2164   VisitExpr(Node);
2165   OS << " functional cast to " << Node->getTypeAsWritten().getAsString()
2166      << " <" << Node->getCastKindName() << ">";
2167 }
2168 
2169 void ASTDumper::VisitCXXConstructExpr(const CXXConstructExpr *Node) {
2170   VisitExpr(Node);
2171   CXXConstructorDecl *Ctor = Node->getConstructor();
2172   dumpType(Ctor->getType());
2173   if (Node->isElidable())
2174     OS << " elidable";
2175   if (Node->requiresZeroInitialization())
2176     OS << " zeroing";
2177 }
2178 
2179 void ASTDumper::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *Node) {
2180   VisitExpr(Node);
2181   OS << " ";
2182   dumpCXXTemporary(Node->getTemporary());
2183 }
2184 
2185 void ASTDumper::VisitCXXNewExpr(const CXXNewExpr *Node) {
2186   VisitExpr(Node);
2187   if (Node->isGlobalNew())
2188     OS << " global";
2189   if (Node->isArray())
2190     OS << " array";
2191   if (Node->getOperatorNew()) {
2192     OS << ' ';
2193     dumpBareDeclRef(Node->getOperatorNew());
2194   }
2195   // We could dump the deallocation function used in case of error, but it's
2196   // usually not that interesting.
2197 }
2198 
2199 void ASTDumper::VisitCXXDeleteExpr(const CXXDeleteExpr *Node) {
2200   VisitExpr(Node);
2201   if (Node->isGlobalDelete())
2202     OS << " global";
2203   if (Node->isArrayForm())
2204     OS << " array";
2205   if (Node->getOperatorDelete()) {
2206     OS << ' ';
2207     dumpBareDeclRef(Node->getOperatorDelete());
2208   }
2209 }
2210 
2211 void
2212 ASTDumper::VisitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *Node) {
2213   VisitExpr(Node);
2214   if (const ValueDecl *VD = Node->getExtendingDecl()) {
2215     OS << " extended by ";
2216     dumpBareDeclRef(VD);
2217   }
2218 }
2219 
2220 void ASTDumper::VisitExprWithCleanups(const ExprWithCleanups *Node) {
2221   VisitExpr(Node);
2222   for (unsigned i = 0, e = Node->getNumObjects(); i != e; ++i)
2223     dumpDeclRef(Node->getObject(i), "cleanup");
2224 }
2225 
2226 void ASTDumper::dumpCXXTemporary(const CXXTemporary *Temporary) {
2227   OS << "(CXXTemporary";
2228   dumpPointer(Temporary);
2229   OS << ")";
2230 }
2231 
2232 void ASTDumper::VisitSizeOfPackExpr(const SizeOfPackExpr *Node) {
2233   VisitExpr(Node);
2234   dumpPointer(Node->getPack());
2235   dumpName(Node->getPack());
2236   if (Node->isPartiallySubstituted())
2237     for (const auto &A : Node->getPartialArguments())
2238       dumpTemplateArgument(A);
2239 }
2240 
2241 void ASTDumper::VisitCXXDependentScopeMemberExpr(
2242     const CXXDependentScopeMemberExpr *Node) {
2243   VisitExpr(Node);
2244   OS << " " << (Node->isArrow() ? "->" : ".") << Node->getMember();
2245 }
2246 
2247 //===----------------------------------------------------------------------===//
2248 // Obj-C Expressions
2249 //===----------------------------------------------------------------------===//
2250 
2251 void ASTDumper::VisitObjCMessageExpr(const ObjCMessageExpr *Node) {
2252   VisitExpr(Node);
2253   OS << " selector=";
2254   Node->getSelector().print(OS);
2255   switch (Node->getReceiverKind()) {
2256   case ObjCMessageExpr::Instance:
2257     break;
2258 
2259   case ObjCMessageExpr::Class:
2260     OS << " class=";
2261     dumpBareType(Node->getClassReceiver());
2262     break;
2263 
2264   case ObjCMessageExpr::SuperInstance:
2265     OS << " super (instance)";
2266     break;
2267 
2268   case ObjCMessageExpr::SuperClass:
2269     OS << " super (class)";
2270     break;
2271   }
2272 }
2273 
2274 void ASTDumper::VisitObjCBoxedExpr(const ObjCBoxedExpr *Node) {
2275   VisitExpr(Node);
2276   if (auto *BoxingMethod = Node->getBoxingMethod()) {
2277     OS << " selector=";
2278     BoxingMethod->getSelector().print(OS);
2279   }
2280 }
2281 
2282 void ASTDumper::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *Node) {
2283   VisitStmt(Node);
2284   if (const VarDecl *CatchParam = Node->getCatchParamDecl())
2285     dumpDecl(CatchParam);
2286   else
2287     OS << " catch all";
2288 }
2289 
2290 void ASTDumper::VisitObjCEncodeExpr(const ObjCEncodeExpr *Node) {
2291   VisitExpr(Node);
2292   dumpType(Node->getEncodedType());
2293 }
2294 
2295 void ASTDumper::VisitObjCSelectorExpr(const ObjCSelectorExpr *Node) {
2296   VisitExpr(Node);
2297 
2298   OS << " ";
2299   Node->getSelector().print(OS);
2300 }
2301 
2302 void ASTDumper::VisitObjCProtocolExpr(const ObjCProtocolExpr *Node) {
2303   VisitExpr(Node);
2304 
2305   OS << ' ' << *Node->getProtocol();
2306 }
2307 
2308 void ASTDumper::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *Node) {
2309   VisitExpr(Node);
2310   if (Node->isImplicitProperty()) {
2311     OS << " Kind=MethodRef Getter=\"";
2312     if (Node->getImplicitPropertyGetter())
2313       Node->getImplicitPropertyGetter()->getSelector().print(OS);
2314     else
2315       OS << "(null)";
2316 
2317     OS << "\" Setter=\"";
2318     if (ObjCMethodDecl *Setter = Node->getImplicitPropertySetter())
2319       Setter->getSelector().print(OS);
2320     else
2321       OS << "(null)";
2322     OS << "\"";
2323   } else {
2324     OS << " Kind=PropertyRef Property=\"" << *Node->getExplicitProperty() <<'"';
2325   }
2326 
2327   if (Node->isSuperReceiver())
2328     OS << " super";
2329 
2330   OS << " Messaging=";
2331   if (Node->isMessagingGetter() && Node->isMessagingSetter())
2332     OS << "Getter&Setter";
2333   else if (Node->isMessagingGetter())
2334     OS << "Getter";
2335   else if (Node->isMessagingSetter())
2336     OS << "Setter";
2337 }
2338 
2339 void ASTDumper::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *Node) {
2340   VisitExpr(Node);
2341   if (Node->isArraySubscriptRefExpr())
2342     OS << " Kind=ArraySubscript GetterForArray=\"";
2343   else
2344     OS << " Kind=DictionarySubscript GetterForDictionary=\"";
2345   if (Node->getAtIndexMethodDecl())
2346     Node->getAtIndexMethodDecl()->getSelector().print(OS);
2347   else
2348     OS << "(null)";
2349 
2350   if (Node->isArraySubscriptRefExpr())
2351     OS << "\" SetterForArray=\"";
2352   else
2353     OS << "\" SetterForDictionary=\"";
2354   if (Node->setAtIndexMethodDecl())
2355     Node->setAtIndexMethodDecl()->getSelector().print(OS);
2356   else
2357     OS << "(null)";
2358 }
2359 
2360 void ASTDumper::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *Node) {
2361   VisitExpr(Node);
2362   OS << " " << (Node->getValue() ? "__objc_yes" : "__objc_no");
2363 }
2364 
2365 //===----------------------------------------------------------------------===//
2366 // Comments
2367 //===----------------------------------------------------------------------===//
2368 
2369 const char *ASTDumper::getCommandName(unsigned CommandID) {
2370   if (Traits)
2371     return Traits->getCommandInfo(CommandID)->Name;
2372   const CommandInfo *Info = CommandTraits::getBuiltinCommandInfo(CommandID);
2373   if (Info)
2374     return Info->Name;
2375   return "<not a builtin command>";
2376 }
2377 
2378 void ASTDumper::dumpFullComment(const FullComment *C) {
2379   if (!C)
2380     return;
2381 
2382   FC = C;
2383   dumpComment(C);
2384   FC = nullptr;
2385 }
2386 
2387 void ASTDumper::dumpComment(const Comment *C) {
2388   dumpChild([=] {
2389     if (!C) {
2390       ColorScope Color(*this, NullColor);
2391       OS << "<<<NULL>>>";
2392       return;
2393     }
2394 
2395     {
2396       ColorScope Color(*this, CommentColor);
2397       OS << C->getCommentKindName();
2398     }
2399     dumpPointer(C);
2400     dumpSourceRange(C->getSourceRange());
2401     ConstCommentVisitor<ASTDumper>::visit(C);
2402     for (Comment::child_iterator I = C->child_begin(), E = C->child_end();
2403          I != E; ++I)
2404       dumpComment(*I);
2405   });
2406 }
2407 
2408 void ASTDumper::visitTextComment(const TextComment *C) {
2409   OS << " Text=\"" << C->getText() << "\"";
2410 }
2411 
2412 void ASTDumper::visitInlineCommandComment(const InlineCommandComment *C) {
2413   OS << " Name=\"" << getCommandName(C->getCommandID()) << "\"";
2414   switch (C->getRenderKind()) {
2415   case InlineCommandComment::RenderNormal:
2416     OS << " RenderNormal";
2417     break;
2418   case InlineCommandComment::RenderBold:
2419     OS << " RenderBold";
2420     break;
2421   case InlineCommandComment::RenderMonospaced:
2422     OS << " RenderMonospaced";
2423     break;
2424   case InlineCommandComment::RenderEmphasized:
2425     OS << " RenderEmphasized";
2426     break;
2427   }
2428 
2429   for (unsigned i = 0, e = C->getNumArgs(); i != e; ++i)
2430     OS << " Arg[" << i << "]=\"" << C->getArgText(i) << "\"";
2431 }
2432 
2433 void ASTDumper::visitHTMLStartTagComment(const HTMLStartTagComment *C) {
2434   OS << " Name=\"" << C->getTagName() << "\"";
2435   if (C->getNumAttrs() != 0) {
2436     OS << " Attrs: ";
2437     for (unsigned i = 0, e = C->getNumAttrs(); i != e; ++i) {
2438       const HTMLStartTagComment::Attribute &Attr = C->getAttr(i);
2439       OS << " \"" << Attr.Name << "=\"" << Attr.Value << "\"";
2440     }
2441   }
2442   if (C->isSelfClosing())
2443     OS << " SelfClosing";
2444 }
2445 
2446 void ASTDumper::visitHTMLEndTagComment(const HTMLEndTagComment *C) {
2447   OS << " Name=\"" << C->getTagName() << "\"";
2448 }
2449 
2450 void ASTDumper::visitBlockCommandComment(const BlockCommandComment *C) {
2451   OS << " Name=\"" << getCommandName(C->getCommandID()) << "\"";
2452   for (unsigned i = 0, e = C->getNumArgs(); i != e; ++i)
2453     OS << " Arg[" << i << "]=\"" << C->getArgText(i) << "\"";
2454 }
2455 
2456 void ASTDumper::visitParamCommandComment(const ParamCommandComment *C) {
2457   OS << " " << ParamCommandComment::getDirectionAsString(C->getDirection());
2458 
2459   if (C->isDirectionExplicit())
2460     OS << " explicitly";
2461   else
2462     OS << " implicitly";
2463 
2464   if (C->hasParamName()) {
2465     if (C->isParamIndexValid())
2466       OS << " Param=\"" << C->getParamName(FC) << "\"";
2467     else
2468       OS << " Param=\"" << C->getParamNameAsWritten() << "\"";
2469   }
2470 
2471   if (C->isParamIndexValid() && !C->isVarArgParam())
2472     OS << " ParamIndex=" << C->getParamIndex();
2473 }
2474 
2475 void ASTDumper::visitTParamCommandComment(const TParamCommandComment *C) {
2476   if (C->hasParamName()) {
2477     if (C->isPositionValid())
2478       OS << " Param=\"" << C->getParamName(FC) << "\"";
2479     else
2480       OS << " Param=\"" << C->getParamNameAsWritten() << "\"";
2481   }
2482 
2483   if (C->isPositionValid()) {
2484     OS << " Position=<";
2485     for (unsigned i = 0, e = C->getDepth(); i != e; ++i) {
2486       OS << C->getIndex(i);
2487       if (i != e - 1)
2488         OS << ", ";
2489     }
2490     OS << ">";
2491   }
2492 }
2493 
2494 void ASTDumper::visitVerbatimBlockComment(const VerbatimBlockComment *C) {
2495   OS << " Name=\"" << getCommandName(C->getCommandID()) << "\""
2496         " CloseName=\"" << C->getCloseName() << "\"";
2497 }
2498 
2499 void ASTDumper::visitVerbatimBlockLineComment(
2500     const VerbatimBlockLineComment *C) {
2501   OS << " Text=\"" << C->getText() << "\"";
2502 }
2503 
2504 void ASTDumper::visitVerbatimLineComment(const VerbatimLineComment *C) {
2505   OS << " Text=\"" << C->getText() << "\"";
2506 }
2507 
2508 //===----------------------------------------------------------------------===//
2509 // Type method implementations
2510 //===----------------------------------------------------------------------===//
2511 
2512 void QualType::dump(const char *msg) const {
2513   if (msg)
2514     llvm::errs() << msg << ": ";
2515   dump();
2516 }
2517 
2518 LLVM_DUMP_METHOD void QualType::dump() const { dump(llvm::errs()); }
2519 
2520 LLVM_DUMP_METHOD void QualType::dump(llvm::raw_ostream &OS) const {
2521   ASTDumper Dumper(OS, nullptr, nullptr);
2522   Dumper.dumpTypeAsChild(*this);
2523 }
2524 
2525 LLVM_DUMP_METHOD void Type::dump() const { dump(llvm::errs()); }
2526 
2527 LLVM_DUMP_METHOD void Type::dump(llvm::raw_ostream &OS) const {
2528   QualType(this, 0).dump(OS);
2529 }
2530 
2531 //===----------------------------------------------------------------------===//
2532 // Decl method implementations
2533 //===----------------------------------------------------------------------===//
2534 
2535 LLVM_DUMP_METHOD void Decl::dump() const { dump(llvm::errs()); }
2536 
2537 LLVM_DUMP_METHOD void Decl::dump(raw_ostream &OS, bool Deserialize) const {
2538   ASTDumper P(OS, &getASTContext().getCommentCommandTraits(),
2539               &getASTContext().getSourceManager());
2540   P.setDeserialize(Deserialize);
2541   P.dumpDecl(this);
2542 }
2543 
2544 LLVM_DUMP_METHOD void Decl::dumpColor() const {
2545   ASTDumper P(llvm::errs(), &getASTContext().getCommentCommandTraits(),
2546               &getASTContext().getSourceManager(), /*ShowColors*/true);
2547   P.dumpDecl(this);
2548 }
2549 
2550 LLVM_DUMP_METHOD void DeclContext::dumpLookups() const {
2551   dumpLookups(llvm::errs());
2552 }
2553 
2554 LLVM_DUMP_METHOD void DeclContext::dumpLookups(raw_ostream &OS,
2555                                                bool DumpDecls,
2556                                                bool Deserialize) const {
2557   const DeclContext *DC = this;
2558   while (!DC->isTranslationUnit())
2559     DC = DC->getParent();
2560   ASTContext &Ctx = cast<TranslationUnitDecl>(DC)->getASTContext();
2561   ASTDumper P(OS, &Ctx.getCommentCommandTraits(), &Ctx.getSourceManager());
2562   P.setDeserialize(Deserialize);
2563   P.dumpLookups(this, DumpDecls);
2564 }
2565 
2566 //===----------------------------------------------------------------------===//
2567 // Stmt method implementations
2568 //===----------------------------------------------------------------------===//
2569 
2570 LLVM_DUMP_METHOD void Stmt::dump(SourceManager &SM) const {
2571   dump(llvm::errs(), SM);
2572 }
2573 
2574 LLVM_DUMP_METHOD void Stmt::dump(raw_ostream &OS, SourceManager &SM) const {
2575   ASTDumper P(OS, nullptr, &SM);
2576   P.dumpStmt(this);
2577 }
2578 
2579 LLVM_DUMP_METHOD void Stmt::dump(raw_ostream &OS) const {
2580   ASTDumper P(OS, nullptr, nullptr);
2581   P.dumpStmt(this);
2582 }
2583 
2584 LLVM_DUMP_METHOD void Stmt::dump() const {
2585   ASTDumper P(llvm::errs(), nullptr, nullptr);
2586   P.dumpStmt(this);
2587 }
2588 
2589 LLVM_DUMP_METHOD void Stmt::dumpColor() const {
2590   ASTDumper P(llvm::errs(), nullptr, nullptr, /*ShowColors*/true);
2591   P.dumpStmt(this);
2592 }
2593 
2594 //===----------------------------------------------------------------------===//
2595 // Comment method implementations
2596 //===----------------------------------------------------------------------===//
2597 
2598 LLVM_DUMP_METHOD void Comment::dump() const {
2599   dump(llvm::errs(), nullptr, nullptr);
2600 }
2601 
2602 LLVM_DUMP_METHOD void Comment::dump(const ASTContext &Context) const {
2603   dump(llvm::errs(), &Context.getCommentCommandTraits(),
2604        &Context.getSourceManager());
2605 }
2606 
2607 void Comment::dump(raw_ostream &OS, const CommandTraits *Traits,
2608                    const SourceManager *SM) const {
2609   const FullComment *FC = dyn_cast<FullComment>(this);
2610   ASTDumper D(OS, Traits, SM);
2611   D.dumpFullComment(FC);
2612 }
2613 
2614 LLVM_DUMP_METHOD void Comment::dumpColor() const {
2615   const FullComment *FC = dyn_cast<FullComment>(this);
2616   ASTDumper D(llvm::errs(), nullptr, nullptr, /*ShowColors*/true);
2617   D.dumpFullComment(FC);
2618 }
2619