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      1 //===--- DeclPrinter.cpp - Printing implementation for Decl 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 Decl::print method, which pretty prints the
     11 // AST back out to C/Objective-C/C++/Objective-C++ code.
     12 //
     13 //===----------------------------------------------------------------------===//
     14 #include "clang/AST/ASTContext.h"
     15 #include "clang/AST/Attr.h"
     16 #include "clang/AST/Decl.h"
     17 #include "clang/AST/DeclCXX.h"
     18 #include "clang/AST/DeclObjC.h"
     19 #include "clang/AST/DeclVisitor.h"
     20 #include "clang/AST/Expr.h"
     21 #include "clang/AST/ExprCXX.h"
     22 #include "clang/AST/PrettyPrinter.h"
     23 #include "clang/Basic/Module.h"
     24 #include "llvm/Support/raw_ostream.h"
     25 using namespace clang;
     26 
     27 namespace {
     28   class DeclPrinter : public DeclVisitor<DeclPrinter> {
     29     raw_ostream &Out;
     30     PrintingPolicy Policy;
     31     unsigned Indentation;
     32     bool PrintInstantiation;
     33 
     34     raw_ostream& Indent() { return Indent(Indentation); }
     35     raw_ostream& Indent(unsigned Indentation);
     36     void ProcessDeclGroup(SmallVectorImpl<Decl*>& Decls);
     37 
     38     void Print(AccessSpecifier AS);
     39 
     40   public:
     41     DeclPrinter(raw_ostream &Out, const PrintingPolicy &Policy,
     42                 unsigned Indentation = 0, bool PrintInstantiation = false)
     43       : Out(Out), Policy(Policy), Indentation(Indentation),
     44         PrintInstantiation(PrintInstantiation) { }
     45 
     46     void VisitDeclContext(DeclContext *DC, bool Indent = true);
     47 
     48     void VisitTranslationUnitDecl(TranslationUnitDecl *D);
     49     void VisitTypedefDecl(TypedefDecl *D);
     50     void VisitTypeAliasDecl(TypeAliasDecl *D);
     51     void VisitEnumDecl(EnumDecl *D);
     52     void VisitRecordDecl(RecordDecl *D);
     53     void VisitEnumConstantDecl(EnumConstantDecl *D);
     54     void VisitEmptyDecl(EmptyDecl *D);
     55     void VisitFunctionDecl(FunctionDecl *D);
     56     void VisitFriendDecl(FriendDecl *D);
     57     void VisitFieldDecl(FieldDecl *D);
     58     void VisitVarDecl(VarDecl *D);
     59     void VisitLabelDecl(LabelDecl *D);
     60     void VisitParmVarDecl(ParmVarDecl *D);
     61     void VisitFileScopeAsmDecl(FileScopeAsmDecl *D);
     62     void VisitImportDecl(ImportDecl *D);
     63     void VisitStaticAssertDecl(StaticAssertDecl *D);
     64     void VisitNamespaceDecl(NamespaceDecl *D);
     65     void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
     66     void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
     67     void VisitCXXRecordDecl(CXXRecordDecl *D);
     68     void VisitLinkageSpecDecl(LinkageSpecDecl *D);
     69     void VisitTemplateDecl(const TemplateDecl *D);
     70     void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
     71     void VisitClassTemplateDecl(ClassTemplateDecl *D);
     72     void VisitObjCMethodDecl(ObjCMethodDecl *D);
     73     void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
     74     void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
     75     void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
     76     void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
     77     void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
     78     void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
     79     void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
     80     void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
     81     void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D);
     82     void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
     83     void VisitUsingDecl(UsingDecl *D);
     84     void VisitUsingShadowDecl(UsingShadowDecl *D);
     85     void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D);
     86 
     87     void PrintTemplateParameters(const TemplateParameterList *Params,
     88                                  const TemplateArgumentList *Args = nullptr);
     89     void prettyPrintAttributes(Decl *D);
     90     void printDeclType(QualType T, StringRef DeclName, bool Pack = false);
     91   };
     92 }
     93 
     94 void Decl::print(raw_ostream &Out, unsigned Indentation,
     95                  bool PrintInstantiation) const {
     96   print(Out, getASTContext().getPrintingPolicy(), Indentation, PrintInstantiation);
     97 }
     98 
     99 void Decl::print(raw_ostream &Out, const PrintingPolicy &Policy,
    100                  unsigned Indentation, bool PrintInstantiation) const {
    101   DeclPrinter Printer(Out, Policy, Indentation, PrintInstantiation);
    102   Printer.Visit(const_cast<Decl*>(this));
    103 }
    104 
    105 static QualType GetBaseType(QualType T) {
    106   // FIXME: This should be on the Type class!
    107   QualType BaseType = T;
    108   while (!BaseType->isSpecifierType()) {
    109     if (isa<TypedefType>(BaseType))
    110       break;
    111     else if (const PointerType* PTy = BaseType->getAs<PointerType>())
    112       BaseType = PTy->getPointeeType();
    113     else if (const BlockPointerType *BPy = BaseType->getAs<BlockPointerType>())
    114       BaseType = BPy->getPointeeType();
    115     else if (const ArrayType* ATy = dyn_cast<ArrayType>(BaseType))
    116       BaseType = ATy->getElementType();
    117     else if (const FunctionType* FTy = BaseType->getAs<FunctionType>())
    118       BaseType = FTy->getReturnType();
    119     else if (const VectorType *VTy = BaseType->getAs<VectorType>())
    120       BaseType = VTy->getElementType();
    121     else if (const ReferenceType *RTy = BaseType->getAs<ReferenceType>())
    122       BaseType = RTy->getPointeeType();
    123     else
    124       llvm_unreachable("Unknown declarator!");
    125   }
    126   return BaseType;
    127 }
    128 
    129 static QualType getDeclType(Decl* D) {
    130   if (TypedefNameDecl* TDD = dyn_cast<TypedefNameDecl>(D))
    131     return TDD->getUnderlyingType();
    132   if (ValueDecl* VD = dyn_cast<ValueDecl>(D))
    133     return VD->getType();
    134   return QualType();
    135 }
    136 
    137 void Decl::printGroup(Decl** Begin, unsigned NumDecls,
    138                       raw_ostream &Out, const PrintingPolicy &Policy,
    139                       unsigned Indentation) {
    140   if (NumDecls == 1) {
    141     (*Begin)->print(Out, Policy, Indentation);
    142     return;
    143   }
    144 
    145   Decl** End = Begin + NumDecls;
    146   TagDecl* TD = dyn_cast<TagDecl>(*Begin);
    147   if (TD)
    148     ++Begin;
    149 
    150   PrintingPolicy SubPolicy(Policy);
    151   if (TD && TD->isCompleteDefinition()) {
    152     TD->print(Out, Policy, Indentation);
    153     Out << " ";
    154     SubPolicy.SuppressTag = true;
    155   }
    156 
    157   bool isFirst = true;
    158   for ( ; Begin != End; ++Begin) {
    159     if (isFirst) {
    160       SubPolicy.SuppressSpecifiers = false;
    161       isFirst = false;
    162     } else {
    163       if (!isFirst) Out << ", ";
    164       SubPolicy.SuppressSpecifiers = true;
    165     }
    166 
    167     (*Begin)->print(Out, SubPolicy, Indentation);
    168   }
    169 }
    170 
    171 LLVM_DUMP_METHOD void DeclContext::dumpDeclContext() const {
    172   // Get the translation unit
    173   const DeclContext *DC = this;
    174   while (!DC->isTranslationUnit())
    175     DC = DC->getParent();
    176 
    177   ASTContext &Ctx = cast<TranslationUnitDecl>(DC)->getASTContext();
    178   DeclPrinter Printer(llvm::errs(), Ctx.getPrintingPolicy(), 0);
    179   Printer.VisitDeclContext(const_cast<DeclContext *>(this), /*Indent=*/false);
    180 }
    181 
    182 raw_ostream& DeclPrinter::Indent(unsigned Indentation) {
    183   for (unsigned i = 0; i != Indentation; ++i)
    184     Out << "  ";
    185   return Out;
    186 }
    187 
    188 void DeclPrinter::prettyPrintAttributes(Decl *D) {
    189   if (Policy.PolishForDeclaration)
    190     return;
    191 
    192   if (D->hasAttrs()) {
    193     AttrVec &Attrs = D->getAttrs();
    194     for (AttrVec::const_iterator i=Attrs.begin(), e=Attrs.end(); i!=e; ++i) {
    195       Attr *A = *i;
    196       A->printPretty(Out, Policy);
    197     }
    198   }
    199 }
    200 
    201 void DeclPrinter::printDeclType(QualType T, StringRef DeclName, bool Pack) {
    202   // Normally, a PackExpansionType is written as T[3]... (for instance, as a
    203   // template argument), but if it is the type of a declaration, the ellipsis
    204   // is placed before the name being declared.
    205   if (auto *PET = T->getAs<PackExpansionType>()) {
    206     Pack = true;
    207     T = PET->getPattern();
    208   }
    209   T.print(Out, Policy, (Pack ? "..." : "") + DeclName);
    210 }
    211 
    212 void DeclPrinter::ProcessDeclGroup(SmallVectorImpl<Decl*>& Decls) {
    213   this->Indent();
    214   Decl::printGroup(Decls.data(), Decls.size(), Out, Policy, Indentation);
    215   Out << ";\n";
    216   Decls.clear();
    217 
    218 }
    219 
    220 void DeclPrinter::Print(AccessSpecifier AS) {
    221   switch(AS) {
    222   case AS_none:      llvm_unreachable("No access specifier!");
    223   case AS_public:    Out << "public"; break;
    224   case AS_protected: Out << "protected"; break;
    225   case AS_private:   Out << "private"; break;
    226   }
    227 }
    228 
    229 //----------------------------------------------------------------------------
    230 // Common C declarations
    231 //----------------------------------------------------------------------------
    232 
    233 void DeclPrinter::VisitDeclContext(DeclContext *DC, bool Indent) {
    234   if (Policy.TerseOutput)
    235     return;
    236 
    237   if (Indent)
    238     Indentation += Policy.Indentation;
    239 
    240   SmallVector<Decl*, 2> Decls;
    241   for (DeclContext::decl_iterator D = DC->decls_begin(), DEnd = DC->decls_end();
    242        D != DEnd; ++D) {
    243 
    244     // Don't print ObjCIvarDecls, as they are printed when visiting the
    245     // containing ObjCInterfaceDecl.
    246     if (isa<ObjCIvarDecl>(*D))
    247       continue;
    248 
    249     // Skip over implicit declarations in pretty-printing mode.
    250     if (D->isImplicit())
    251       continue;
    252 
    253     // The next bits of code handles stuff like "struct {int x;} a,b"; we're
    254     // forced to merge the declarations because there's no other way to
    255     // refer to the struct in question.  This limited merging is safe without
    256     // a bunch of other checks because it only merges declarations directly
    257     // referring to the tag, not typedefs.
    258     //
    259     // Check whether the current declaration should be grouped with a previous
    260     // unnamed struct.
    261     QualType CurDeclType = getDeclType(*D);
    262     if (!Decls.empty() && !CurDeclType.isNull()) {
    263       QualType BaseType = GetBaseType(CurDeclType);
    264       if (!BaseType.isNull() && isa<ElaboratedType>(BaseType))
    265         BaseType = cast<ElaboratedType>(BaseType)->getNamedType();
    266       if (!BaseType.isNull() && isa<TagType>(BaseType) &&
    267           cast<TagType>(BaseType)->getDecl() == Decls[0]) {
    268         Decls.push_back(*D);
    269         continue;
    270       }
    271     }
    272 
    273     // If we have a merged group waiting to be handled, handle it now.
    274     if (!Decls.empty())
    275       ProcessDeclGroup(Decls);
    276 
    277     // If the current declaration is an unnamed tag type, save it
    278     // so we can merge it with the subsequent declaration(s) using it.
    279     if (isa<TagDecl>(*D) && !cast<TagDecl>(*D)->getIdentifier()) {
    280       Decls.push_back(*D);
    281       continue;
    282     }
    283 
    284     if (isa<AccessSpecDecl>(*D)) {
    285       Indentation -= Policy.Indentation;
    286       this->Indent();
    287       Print(D->getAccess());
    288       Out << ":\n";
    289       Indentation += Policy.Indentation;
    290       continue;
    291     }
    292 
    293     this->Indent();
    294     Visit(*D);
    295 
    296     // FIXME: Need to be able to tell the DeclPrinter when
    297     const char *Terminator = nullptr;
    298     if (isa<OMPThreadPrivateDecl>(*D))
    299       Terminator = nullptr;
    300     else if (isa<FunctionDecl>(*D) &&
    301              cast<FunctionDecl>(*D)->isThisDeclarationADefinition())
    302       Terminator = nullptr;
    303     else if (isa<ObjCMethodDecl>(*D) && cast<ObjCMethodDecl>(*D)->getBody())
    304       Terminator = nullptr;
    305     else if (isa<NamespaceDecl>(*D) || isa<LinkageSpecDecl>(*D) ||
    306              isa<ObjCImplementationDecl>(*D) ||
    307              isa<ObjCInterfaceDecl>(*D) ||
    308              isa<ObjCProtocolDecl>(*D) ||
    309              isa<ObjCCategoryImplDecl>(*D) ||
    310              isa<ObjCCategoryDecl>(*D))
    311       Terminator = nullptr;
    312     else if (isa<EnumConstantDecl>(*D)) {
    313       DeclContext::decl_iterator Next = D;
    314       ++Next;
    315       if (Next != DEnd)
    316         Terminator = ",";
    317     } else
    318       Terminator = ";";
    319 
    320     if (Terminator)
    321       Out << Terminator;
    322     Out << "\n";
    323   }
    324 
    325   if (!Decls.empty())
    326     ProcessDeclGroup(Decls);
    327 
    328   if (Indent)
    329     Indentation -= Policy.Indentation;
    330 }
    331 
    332 void DeclPrinter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
    333   VisitDeclContext(D, false);
    334 }
    335 
    336 void DeclPrinter::VisitTypedefDecl(TypedefDecl *D) {
    337   if (!Policy.SuppressSpecifiers) {
    338     Out << "typedef ";
    339 
    340     if (D->isModulePrivate())
    341       Out << "__module_private__ ";
    342   }
    343   D->getTypeSourceInfo()->getType().print(Out, Policy, D->getName());
    344   prettyPrintAttributes(D);
    345 }
    346 
    347 void DeclPrinter::VisitTypeAliasDecl(TypeAliasDecl *D) {
    348   Out << "using " << *D;
    349   prettyPrintAttributes(D);
    350   Out << " = " << D->getTypeSourceInfo()->getType().getAsString(Policy);
    351 }
    352 
    353 void DeclPrinter::VisitEnumDecl(EnumDecl *D) {
    354   if (!Policy.SuppressSpecifiers && D->isModulePrivate())
    355     Out << "__module_private__ ";
    356   Out << "enum ";
    357   if (D->isScoped()) {
    358     if (D->isScopedUsingClassTag())
    359       Out << "class ";
    360     else
    361       Out << "struct ";
    362   }
    363   Out << *D;
    364 
    365   if (D->isFixed())
    366     Out << " : " << D->getIntegerType().stream(Policy);
    367 
    368   if (D->isCompleteDefinition()) {
    369     Out << " {\n";
    370     VisitDeclContext(D);
    371     Indent() << "}";
    372   }
    373   prettyPrintAttributes(D);
    374 }
    375 
    376 void DeclPrinter::VisitRecordDecl(RecordDecl *D) {
    377   if (!Policy.SuppressSpecifiers && D->isModulePrivate())
    378     Out << "__module_private__ ";
    379   Out << D->getKindName();
    380 
    381   prettyPrintAttributes(D);
    382 
    383   if (D->getIdentifier())
    384     Out << ' ' << *D;
    385 
    386   if (D->isCompleteDefinition()) {
    387     Out << " {\n";
    388     VisitDeclContext(D);
    389     Indent() << "}";
    390   }
    391 }
    392 
    393 void DeclPrinter::VisitEnumConstantDecl(EnumConstantDecl *D) {
    394   Out << *D;
    395   if (Expr *Init = D->getInitExpr()) {
    396     Out << " = ";
    397     Init->printPretty(Out, nullptr, Policy, Indentation);
    398   }
    399 }
    400 
    401 void DeclPrinter::VisitFunctionDecl(FunctionDecl *D) {
    402   CXXConstructorDecl *CDecl = dyn_cast<CXXConstructorDecl>(D);
    403   CXXConversionDecl *ConversionDecl = dyn_cast<CXXConversionDecl>(D);
    404   if (!Policy.SuppressSpecifiers) {
    405     switch (D->getStorageClass()) {
    406     case SC_None: break;
    407     case SC_Extern: Out << "extern "; break;
    408     case SC_Static: Out << "static "; break;
    409     case SC_PrivateExtern: Out << "__private_extern__ "; break;
    410     case SC_Auto: case SC_Register: case SC_OpenCLWorkGroupLocal:
    411       llvm_unreachable("invalid for functions");
    412     }
    413 
    414     if (D->isInlineSpecified())  Out << "inline ";
    415     if (D->isVirtualAsWritten()) Out << "virtual ";
    416     if (D->isModulePrivate())    Out << "__module_private__ ";
    417     if (D->isConstexpr() && !D->isExplicitlyDefaulted()) Out << "constexpr ";
    418     if ((CDecl && CDecl->isExplicitSpecified()) ||
    419         (ConversionDecl && ConversionDecl->isExplicit()))
    420       Out << "explicit ";
    421   }
    422 
    423   PrintingPolicy SubPolicy(Policy);
    424   SubPolicy.SuppressSpecifiers = false;
    425   std::string Proto = D->getNameInfo().getAsString();
    426 
    427   QualType Ty = D->getType();
    428   while (const ParenType *PT = dyn_cast<ParenType>(Ty)) {
    429     Proto = '(' + Proto + ')';
    430     Ty = PT->getInnerType();
    431   }
    432 
    433   if (const FunctionType *AFT = Ty->getAs<FunctionType>()) {
    434     const FunctionProtoType *FT = nullptr;
    435     if (D->hasWrittenPrototype())
    436       FT = dyn_cast<FunctionProtoType>(AFT);
    437 
    438     Proto += "(";
    439     if (FT) {
    440       llvm::raw_string_ostream POut(Proto);
    441       DeclPrinter ParamPrinter(POut, SubPolicy, Indentation);
    442       for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) {
    443         if (i) POut << ", ";
    444         ParamPrinter.VisitParmVarDecl(D->getParamDecl(i));
    445       }
    446 
    447       if (FT->isVariadic()) {
    448         if (D->getNumParams()) POut << ", ";
    449         POut << "...";
    450       }
    451     } else if (D->doesThisDeclarationHaveABody() && !D->hasPrototype()) {
    452       for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) {
    453         if (i)
    454           Proto += ", ";
    455         Proto += D->getParamDecl(i)->getNameAsString();
    456       }
    457     }
    458 
    459     Proto += ")";
    460 
    461     if (FT) {
    462       if (FT->isConst())
    463         Proto += " const";
    464       if (FT->isVolatile())
    465         Proto += " volatile";
    466       if (FT->isRestrict())
    467         Proto += " restrict";
    468 
    469       switch (FT->getRefQualifier()) {
    470       case RQ_None:
    471         break;
    472       case RQ_LValue:
    473         Proto += " &";
    474         break;
    475       case RQ_RValue:
    476         Proto += " &&";
    477         break;
    478       }
    479     }
    480 
    481     if (FT && FT->hasDynamicExceptionSpec()) {
    482       Proto += " throw(";
    483       if (FT->getExceptionSpecType() == EST_MSAny)
    484         Proto += "...";
    485       else
    486         for (unsigned I = 0, N = FT->getNumExceptions(); I != N; ++I) {
    487           if (I)
    488             Proto += ", ";
    489 
    490           Proto += FT->getExceptionType(I).getAsString(SubPolicy);
    491         }
    492       Proto += ")";
    493     } else if (FT && isNoexceptExceptionSpec(FT->getExceptionSpecType())) {
    494       Proto += " noexcept";
    495       if (FT->getExceptionSpecType() == EST_ComputedNoexcept) {
    496         Proto += "(";
    497         llvm::raw_string_ostream EOut(Proto);
    498         FT->getNoexceptExpr()->printPretty(EOut, nullptr, SubPolicy,
    499                                            Indentation);
    500         EOut.flush();
    501         Proto += EOut.str();
    502         Proto += ")";
    503       }
    504     }
    505 
    506     if (CDecl) {
    507       bool HasInitializerList = false;
    508       for (const auto *BMInitializer : CDecl->inits()) {
    509         if (BMInitializer->isInClassMemberInitializer())
    510           continue;
    511 
    512         if (!HasInitializerList) {
    513           Proto += " : ";
    514           Out << Proto;
    515           Proto.clear();
    516           HasInitializerList = true;
    517         } else
    518           Out << ", ";
    519 
    520         if (BMInitializer->isAnyMemberInitializer()) {
    521           FieldDecl *FD = BMInitializer->getAnyMember();
    522           Out << *FD;
    523         } else {
    524           Out << QualType(BMInitializer->getBaseClass(), 0).getAsString(Policy);
    525         }
    526 
    527         Out << "(";
    528         if (!BMInitializer->getInit()) {
    529           // Nothing to print
    530         } else {
    531           Expr *Init = BMInitializer->getInit();
    532           if (ExprWithCleanups *Tmp = dyn_cast<ExprWithCleanups>(Init))
    533             Init = Tmp->getSubExpr();
    534 
    535           Init = Init->IgnoreParens();
    536 
    537           Expr *SimpleInit = nullptr;
    538           Expr **Args = nullptr;
    539           unsigned NumArgs = 0;
    540           if (ParenListExpr *ParenList = dyn_cast<ParenListExpr>(Init)) {
    541             Args = ParenList->getExprs();
    542             NumArgs = ParenList->getNumExprs();
    543           } else if (CXXConstructExpr *Construct
    544                                         = dyn_cast<CXXConstructExpr>(Init)) {
    545             Args = Construct->getArgs();
    546             NumArgs = Construct->getNumArgs();
    547           } else
    548             SimpleInit = Init;
    549 
    550           if (SimpleInit)
    551             SimpleInit->printPretty(Out, nullptr, Policy, Indentation);
    552           else {
    553             for (unsigned I = 0; I != NumArgs; ++I) {
    554               assert(Args[I] != nullptr && "Expected non-null Expr");
    555               if (isa<CXXDefaultArgExpr>(Args[I]))
    556                 break;
    557 
    558               if (I)
    559                 Out << ", ";
    560               Args[I]->printPretty(Out, nullptr, Policy, Indentation);
    561             }
    562           }
    563         }
    564         Out << ")";
    565         if (BMInitializer->isPackExpansion())
    566           Out << "...";
    567       }
    568     } else if (!ConversionDecl && !isa<CXXDestructorDecl>(D)) {
    569       if (FT && FT->hasTrailingReturn()) {
    570         Out << "auto " << Proto << " -> ";
    571         Proto.clear();
    572       }
    573       AFT->getReturnType().print(Out, Policy, Proto);
    574       Proto.clear();
    575     }
    576     Out << Proto;
    577   } else {
    578     Ty.print(Out, Policy, Proto);
    579   }
    580 
    581   prettyPrintAttributes(D);
    582 
    583   if (D->isPure())
    584     Out << " = 0";
    585   else if (D->isDeletedAsWritten())
    586     Out << " = delete";
    587   else if (D->isExplicitlyDefaulted())
    588     Out << " = default";
    589   else if (D->doesThisDeclarationHaveABody() && !Policy.TerseOutput) {
    590     if (!D->hasPrototype() && D->getNumParams()) {
    591       // This is a K&R function definition, so we need to print the
    592       // parameters.
    593       Out << '\n';
    594       DeclPrinter ParamPrinter(Out, SubPolicy, Indentation);
    595       Indentation += Policy.Indentation;
    596       for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) {
    597         Indent();
    598         ParamPrinter.VisitParmVarDecl(D->getParamDecl(i));
    599         Out << ";\n";
    600       }
    601       Indentation -= Policy.Indentation;
    602     } else
    603       Out << ' ';
    604 
    605     if (D->getBody())
    606       D->getBody()->printPretty(Out, nullptr, SubPolicy, Indentation);
    607     Out << '\n';
    608   }
    609 }
    610 
    611 void DeclPrinter::VisitFriendDecl(FriendDecl *D) {
    612   if (TypeSourceInfo *TSI = D->getFriendType()) {
    613     unsigned NumTPLists = D->getFriendTypeNumTemplateParameterLists();
    614     for (unsigned i = 0; i < NumTPLists; ++i)
    615       PrintTemplateParameters(D->getFriendTypeTemplateParameterList(i));
    616     Out << "friend ";
    617     Out << " " << TSI->getType().getAsString(Policy);
    618   }
    619   else if (FunctionDecl *FD =
    620       dyn_cast<FunctionDecl>(D->getFriendDecl())) {
    621     Out << "friend ";
    622     VisitFunctionDecl(FD);
    623   }
    624   else if (FunctionTemplateDecl *FTD =
    625            dyn_cast<FunctionTemplateDecl>(D->getFriendDecl())) {
    626     Out << "friend ";
    627     VisitFunctionTemplateDecl(FTD);
    628   }
    629   else if (ClassTemplateDecl *CTD =
    630            dyn_cast<ClassTemplateDecl>(D->getFriendDecl())) {
    631     Out << "friend ";
    632     VisitRedeclarableTemplateDecl(CTD);
    633   }
    634 }
    635 
    636 void DeclPrinter::VisitFieldDecl(FieldDecl *D) {
    637   if (!Policy.SuppressSpecifiers && D->isMutable())
    638     Out << "mutable ";
    639   if (!Policy.SuppressSpecifiers && D->isModulePrivate())
    640     Out << "__module_private__ ";
    641 
    642   Out << D->getASTContext().getUnqualifiedObjCPointerType(D->getType()).
    643             stream(Policy, D->getName());
    644 
    645   if (D->isBitField()) {
    646     Out << " : ";
    647     D->getBitWidth()->printPretty(Out, nullptr, Policy, Indentation);
    648   }
    649 
    650   Expr *Init = D->getInClassInitializer();
    651   if (!Policy.SuppressInitializers && Init) {
    652     if (D->getInClassInitStyle() == ICIS_ListInit)
    653       Out << " ";
    654     else
    655       Out << " = ";
    656     Init->printPretty(Out, nullptr, Policy, Indentation);
    657   }
    658   prettyPrintAttributes(D);
    659 }
    660 
    661 void DeclPrinter::VisitLabelDecl(LabelDecl *D) {
    662   Out << *D << ":";
    663 }
    664 
    665 void DeclPrinter::VisitVarDecl(VarDecl *D) {
    666   if (!Policy.SuppressSpecifiers) {
    667     StorageClass SC = D->getStorageClass();
    668     if (SC != SC_None)
    669       Out << VarDecl::getStorageClassSpecifierString(SC) << " ";
    670 
    671     switch (D->getTSCSpec()) {
    672     case TSCS_unspecified:
    673       break;
    674     case TSCS___thread:
    675       Out << "__thread ";
    676       break;
    677     case TSCS__Thread_local:
    678       Out << "_Thread_local ";
    679       break;
    680     case TSCS_thread_local:
    681       Out << "thread_local ";
    682       break;
    683     }
    684 
    685     if (D->isModulePrivate())
    686       Out << "__module_private__ ";
    687   }
    688 
    689   QualType T = D->getTypeSourceInfo()
    690     ? D->getTypeSourceInfo()->getType()
    691     : D->getASTContext().getUnqualifiedObjCPointerType(D->getType());
    692   printDeclType(T, D->getName());
    693   Expr *Init = D->getInit();
    694   if (!Policy.SuppressInitializers && Init) {
    695     bool ImplicitInit = false;
    696     if (CXXConstructExpr *Construct =
    697             dyn_cast<CXXConstructExpr>(Init->IgnoreImplicit())) {
    698       if (D->getInitStyle() == VarDecl::CallInit &&
    699           !Construct->isListInitialization()) {
    700         ImplicitInit = Construct->getNumArgs() == 0 ||
    701           Construct->getArg(0)->isDefaultArgument();
    702       }
    703     }
    704     if (!ImplicitInit) {
    705       if ((D->getInitStyle() == VarDecl::CallInit) && !isa<ParenListExpr>(Init))
    706         Out << "(";
    707       else if (D->getInitStyle() == VarDecl::CInit) {
    708         Out << " = ";
    709       }
    710       Init->printPretty(Out, nullptr, Policy, Indentation);
    711       if ((D->getInitStyle() == VarDecl::CallInit) && !isa<ParenListExpr>(Init))
    712         Out << ")";
    713     }
    714   }
    715   prettyPrintAttributes(D);
    716 }
    717 
    718 void DeclPrinter::VisitParmVarDecl(ParmVarDecl *D) {
    719   VisitVarDecl(D);
    720 }
    721 
    722 void DeclPrinter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
    723   Out << "__asm (";
    724   D->getAsmString()->printPretty(Out, nullptr, Policy, Indentation);
    725   Out << ")";
    726 }
    727 
    728 void DeclPrinter::VisitImportDecl(ImportDecl *D) {
    729   Out << "@import " << D->getImportedModule()->getFullModuleName()
    730       << ";\n";
    731 }
    732 
    733 void DeclPrinter::VisitStaticAssertDecl(StaticAssertDecl *D) {
    734   Out << "static_assert(";
    735   D->getAssertExpr()->printPretty(Out, nullptr, Policy, Indentation);
    736   Out << ", ";
    737   D->getMessage()->printPretty(Out, nullptr, Policy, Indentation);
    738   Out << ")";
    739 }
    740 
    741 //----------------------------------------------------------------------------
    742 // C++ declarations
    743 //----------------------------------------------------------------------------
    744 void DeclPrinter::VisitNamespaceDecl(NamespaceDecl *D) {
    745   if (D->isInline())
    746     Out << "inline ";
    747   Out << "namespace " << *D << " {\n";
    748   VisitDeclContext(D);
    749   Indent() << "}";
    750 }
    751 
    752 void DeclPrinter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
    753   Out << "using namespace ";
    754   if (D->getQualifier())
    755     D->getQualifier()->print(Out, Policy);
    756   Out << *D->getNominatedNamespaceAsWritten();
    757 }
    758 
    759 void DeclPrinter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
    760   Out << "namespace " << *D << " = ";
    761   if (D->getQualifier())
    762     D->getQualifier()->print(Out, Policy);
    763   Out << *D->getAliasedNamespace();
    764 }
    765 
    766 void DeclPrinter::VisitEmptyDecl(EmptyDecl *D) {
    767   prettyPrintAttributes(D);
    768 }
    769 
    770 void DeclPrinter::VisitCXXRecordDecl(CXXRecordDecl *D) {
    771   if (!Policy.SuppressSpecifiers && D->isModulePrivate())
    772     Out << "__module_private__ ";
    773   Out << D->getKindName();
    774 
    775   prettyPrintAttributes(D);
    776 
    777   if (D->getIdentifier())
    778     Out << ' ' << *D;
    779 
    780   if (D->isCompleteDefinition()) {
    781     // Print the base classes
    782     if (D->getNumBases()) {
    783       Out << " : ";
    784       for (CXXRecordDecl::base_class_iterator Base = D->bases_begin(),
    785              BaseEnd = D->bases_end(); Base != BaseEnd; ++Base) {
    786         if (Base != D->bases_begin())
    787           Out << ", ";
    788 
    789         if (Base->isVirtual())
    790           Out << "virtual ";
    791 
    792         AccessSpecifier AS = Base->getAccessSpecifierAsWritten();
    793         if (AS != AS_none) {
    794           Print(AS);
    795           Out << " ";
    796         }
    797         Out << Base->getType().getAsString(Policy);
    798 
    799         if (Base->isPackExpansion())
    800           Out << "...";
    801       }
    802     }
    803 
    804     // Print the class definition
    805     // FIXME: Doesn't print access specifiers, e.g., "public:"
    806     Out << " {\n";
    807     VisitDeclContext(D);
    808     Indent() << "}";
    809   }
    810 }
    811 
    812 void DeclPrinter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
    813   const char *l;
    814   if (D->getLanguage() == LinkageSpecDecl::lang_c)
    815     l = "C";
    816   else {
    817     assert(D->getLanguage() == LinkageSpecDecl::lang_cxx &&
    818            "unknown language in linkage specification");
    819     l = "C++";
    820   }
    821 
    822   Out << "extern \"" << l << "\" ";
    823   if (D->hasBraces()) {
    824     Out << "{\n";
    825     VisitDeclContext(D);
    826     Indent() << "}";
    827   } else
    828     Visit(*D->decls_begin());
    829 }
    830 
    831 void DeclPrinter::PrintTemplateParameters(const TemplateParameterList *Params,
    832                                           const TemplateArgumentList *Args) {
    833   assert(Params);
    834   assert(!Args || Params->size() == Args->size());
    835 
    836   Out << "template <";
    837 
    838   for (unsigned i = 0, e = Params->size(); i != e; ++i) {
    839     if (i != 0)
    840       Out << ", ";
    841 
    842     const Decl *Param = Params->getParam(i);
    843     if (const TemplateTypeParmDecl *TTP =
    844           dyn_cast<TemplateTypeParmDecl>(Param)) {
    845 
    846       if (TTP->wasDeclaredWithTypename())
    847         Out << "typename ";
    848       else
    849         Out << "class ";
    850 
    851       if (TTP->isParameterPack())
    852         Out << "...";
    853 
    854       Out << *TTP;
    855 
    856       if (Args) {
    857         Out << " = ";
    858         Args->get(i).print(Policy, Out);
    859       } else if (TTP->hasDefaultArgument()) {
    860         Out << " = ";
    861         Out << TTP->getDefaultArgument().getAsString(Policy);
    862       };
    863     } else if (const NonTypeTemplateParmDecl *NTTP =
    864                  dyn_cast<NonTypeTemplateParmDecl>(Param)) {
    865       StringRef Name;
    866       if (IdentifierInfo *II = NTTP->getIdentifier())
    867         Name = II->getName();
    868       printDeclType(NTTP->getType(), Name, NTTP->isParameterPack());
    869 
    870       if (Args) {
    871         Out << " = ";
    872         Args->get(i).print(Policy, Out);
    873       } else if (NTTP->hasDefaultArgument()) {
    874         Out << " = ";
    875         NTTP->getDefaultArgument()->printPretty(Out, nullptr, Policy,
    876                                                 Indentation);
    877       }
    878     } else if (const TemplateTemplateParmDecl *TTPD =
    879                  dyn_cast<TemplateTemplateParmDecl>(Param)) {
    880       VisitTemplateDecl(TTPD);
    881       // FIXME: print the default argument, if present.
    882     }
    883   }
    884 
    885   Out << "> ";
    886 }
    887 
    888 void DeclPrinter::VisitTemplateDecl(const TemplateDecl *D) {
    889   PrintTemplateParameters(D->getTemplateParameters());
    890 
    891   if (const TemplateTemplateParmDecl *TTP =
    892         dyn_cast<TemplateTemplateParmDecl>(D)) {
    893     Out << "class ";
    894     if (TTP->isParameterPack())
    895       Out << "...";
    896     Out << D->getName();
    897   } else {
    898     Visit(D->getTemplatedDecl());
    899   }
    900 }
    901 
    902 void DeclPrinter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
    903   if (PrintInstantiation) {
    904     TemplateParameterList *Params = D->getTemplateParameters();
    905     for (auto *I : D->specializations()) {
    906       PrintTemplateParameters(Params, I->getTemplateSpecializationArgs());
    907       Visit(I);
    908     }
    909   }
    910 
    911   return VisitRedeclarableTemplateDecl(D);
    912 }
    913 
    914 void DeclPrinter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
    915   if (PrintInstantiation) {
    916     TemplateParameterList *Params = D->getTemplateParameters();
    917     for (auto *I : D->specializations()) {
    918       PrintTemplateParameters(Params, &I->getTemplateArgs());
    919       Visit(I);
    920       Out << '\n';
    921     }
    922   }
    923 
    924   return VisitRedeclarableTemplateDecl(D);
    925 }
    926 
    927 //----------------------------------------------------------------------------
    928 // Objective-C declarations
    929 //----------------------------------------------------------------------------
    930 
    931 void DeclPrinter::VisitObjCMethodDecl(ObjCMethodDecl *OMD) {
    932   if (OMD->isInstanceMethod())
    933     Out << "- ";
    934   else
    935     Out << "+ ";
    936   if (!OMD->getReturnType().isNull())
    937     Out << '(' << OMD->getASTContext()
    938                       .getUnqualifiedObjCPointerType(OMD->getReturnType())
    939                       .getAsString(Policy) << ")";
    940 
    941   std::string name = OMD->getSelector().getAsString();
    942   std::string::size_type pos, lastPos = 0;
    943   for (const auto *PI : OMD->params()) {
    944     // FIXME: selector is missing here!
    945     pos = name.find_first_of(':', lastPos);
    946     Out << " " << name.substr(lastPos, pos - lastPos);
    947     Out << ":(" << PI->getASTContext().getUnqualifiedObjCPointerType(PI->getType()).
    948                       getAsString(Policy) << ')' << *PI;
    949     lastPos = pos + 1;
    950   }
    951 
    952   if (OMD->param_begin() == OMD->param_end())
    953     Out << " " << name;
    954 
    955   if (OMD->isVariadic())
    956       Out << ", ...";
    957 
    958   prettyPrintAttributes(OMD);
    959 
    960   if (OMD->getBody() && !Policy.TerseOutput) {
    961     Out << ' ';
    962     OMD->getBody()->printPretty(Out, nullptr, Policy);
    963   }
    964   else if (Policy.PolishForDeclaration)
    965     Out << ';';
    966 }
    967 
    968 void DeclPrinter::VisitObjCImplementationDecl(ObjCImplementationDecl *OID) {
    969   std::string I = OID->getNameAsString();
    970   ObjCInterfaceDecl *SID = OID->getSuperClass();
    971 
    972   bool eolnOut = false;
    973   if (SID)
    974     Out << "@implementation " << I << " : " << *SID;
    975   else
    976     Out << "@implementation " << I;
    977 
    978   if (OID->ivar_size() > 0) {
    979     Out << "{\n";
    980     eolnOut = true;
    981     Indentation += Policy.Indentation;
    982     for (const auto *I : OID->ivars()) {
    983       Indent() << I->getASTContext().getUnqualifiedObjCPointerType(I->getType()).
    984                     getAsString(Policy) << ' ' << *I << ";\n";
    985     }
    986     Indentation -= Policy.Indentation;
    987     Out << "}\n";
    988   }
    989   else if (SID || (OID->decls_begin() != OID->decls_end())) {
    990     Out << "\n";
    991     eolnOut = true;
    992   }
    993   VisitDeclContext(OID, false);
    994   if (!eolnOut)
    995     Out << "\n";
    996   Out << "@end";
    997 }
    998 
    999 void DeclPrinter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *OID) {
   1000   std::string I = OID->getNameAsString();
   1001   ObjCInterfaceDecl *SID = OID->getSuperClass();
   1002 
   1003   if (!OID->isThisDeclarationADefinition()) {
   1004     Out << "@class " << I << ";";
   1005     return;
   1006   }
   1007   bool eolnOut = false;
   1008   if (SID)
   1009     Out << "@interface " << I << " : " << *SID;
   1010   else
   1011     Out << "@interface " << I;
   1012 
   1013   // Protocols?
   1014   const ObjCList<ObjCProtocolDecl> &Protocols = OID->getReferencedProtocols();
   1015   if (!Protocols.empty()) {
   1016     for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
   1017          E = Protocols.end(); I != E; ++I)
   1018       Out << (I == Protocols.begin() ? '<' : ',') << **I;
   1019     Out << "> ";
   1020   }
   1021 
   1022   if (OID->ivar_size() > 0) {
   1023     Out << "{\n";
   1024     eolnOut = true;
   1025     Indentation += Policy.Indentation;
   1026     for (const auto *I : OID->ivars()) {
   1027       Indent() << I->getASTContext()
   1028                       .getUnqualifiedObjCPointerType(I->getType())
   1029                       .getAsString(Policy) << ' ' << *I << ";\n";
   1030     }
   1031     Indentation -= Policy.Indentation;
   1032     Out << "}\n";
   1033   }
   1034   else if (SID || (OID->decls_begin() != OID->decls_end())) {
   1035     Out << "\n";
   1036     eolnOut = true;
   1037   }
   1038 
   1039   VisitDeclContext(OID, false);
   1040   if (!eolnOut)
   1041     Out << "\n";
   1042   Out << "@end";
   1043   // FIXME: implement the rest...
   1044 }
   1045 
   1046 void DeclPrinter::VisitObjCProtocolDecl(ObjCProtocolDecl *PID) {
   1047   if (!PID->isThisDeclarationADefinition()) {
   1048     Out << "@protocol " << *PID << ";\n";
   1049     return;
   1050   }
   1051   // Protocols?
   1052   const ObjCList<ObjCProtocolDecl> &Protocols = PID->getReferencedProtocols();
   1053   if (!Protocols.empty()) {
   1054     Out << "@protocol " << *PID;
   1055     for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
   1056          E = Protocols.end(); I != E; ++I)
   1057       Out << (I == Protocols.begin() ? '<' : ',') << **I;
   1058     Out << ">\n";
   1059   } else
   1060     Out << "@protocol " << *PID << '\n';
   1061   VisitDeclContext(PID, false);
   1062   Out << "@end";
   1063 }
   1064 
   1065 void DeclPrinter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *PID) {
   1066   Out << "@implementation " << *PID->getClassInterface() << '(' << *PID <<")\n";
   1067 
   1068   VisitDeclContext(PID, false);
   1069   Out << "@end";
   1070   // FIXME: implement the rest...
   1071 }
   1072 
   1073 void DeclPrinter::VisitObjCCategoryDecl(ObjCCategoryDecl *PID) {
   1074   Out << "@interface " << *PID->getClassInterface() << '(' << *PID << ")\n";
   1075   if (PID->ivar_size() > 0) {
   1076     Out << "{\n";
   1077     Indentation += Policy.Indentation;
   1078     for (const auto *I : PID->ivars())
   1079       Indent() << I->getASTContext().getUnqualifiedObjCPointerType(I->getType()).
   1080                     getAsString(Policy) << ' ' << *I << ";\n";
   1081     Indentation -= Policy.Indentation;
   1082     Out << "}\n";
   1083   }
   1084 
   1085   VisitDeclContext(PID, false);
   1086   Out << "@end";
   1087 
   1088   // FIXME: implement the rest...
   1089 }
   1090 
   1091 void DeclPrinter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *AID) {
   1092   Out << "@compatibility_alias " << *AID
   1093       << ' ' << *AID->getClassInterface() << ";\n";
   1094 }
   1095 
   1096 /// PrintObjCPropertyDecl - print a property declaration.
   1097 ///
   1098 void DeclPrinter::VisitObjCPropertyDecl(ObjCPropertyDecl *PDecl) {
   1099   if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Required)
   1100     Out << "@required\n";
   1101   else if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Optional)
   1102     Out << "@optional\n";
   1103 
   1104   Out << "@property";
   1105   if (PDecl->getPropertyAttributes() != ObjCPropertyDecl::OBJC_PR_noattr) {
   1106     bool first = true;
   1107     Out << " (";
   1108     if (PDecl->getPropertyAttributes() &
   1109         ObjCPropertyDecl::OBJC_PR_readonly) {
   1110       Out << (first ? ' ' : ',') << "readonly";
   1111       first = false;
   1112     }
   1113 
   1114     if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) {
   1115       Out << (first ? ' ' : ',') << "getter = ";
   1116       PDecl->getGetterName().print(Out);
   1117       first = false;
   1118     }
   1119     if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) {
   1120       Out << (first ? ' ' : ',') << "setter = ";
   1121       PDecl->getSetterName().print(Out);
   1122       first = false;
   1123     }
   1124 
   1125     if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_assign) {
   1126       Out << (first ? ' ' : ',') << "assign";
   1127       first = false;
   1128     }
   1129 
   1130     if (PDecl->getPropertyAttributes() &
   1131         ObjCPropertyDecl::OBJC_PR_readwrite) {
   1132       Out << (first ? ' ' : ',') << "readwrite";
   1133       first = false;
   1134     }
   1135 
   1136     if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_retain) {
   1137       Out << (first ? ' ' : ',') << "retain";
   1138       first = false;
   1139     }
   1140 
   1141     if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_strong) {
   1142       Out << (first ? ' ' : ',') << "strong";
   1143       first = false;
   1144     }
   1145 
   1146     if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_copy) {
   1147       Out << (first ? ' ' : ',') << "copy";
   1148       first = false;
   1149     }
   1150 
   1151     if (PDecl->getPropertyAttributes() &
   1152         ObjCPropertyDecl::OBJC_PR_nonatomic) {
   1153       Out << (first ? ' ' : ',') << "nonatomic";
   1154       first = false;
   1155     }
   1156     if (PDecl->getPropertyAttributes() &
   1157         ObjCPropertyDecl::OBJC_PR_atomic) {
   1158       Out << (first ? ' ' : ',') << "atomic";
   1159       first = false;
   1160     }
   1161 
   1162     (void) first; // Silence dead store warning due to idiomatic code.
   1163     Out << " )";
   1164   }
   1165   Out << ' ' << PDecl->getASTContext().getUnqualifiedObjCPointerType(PDecl->getType()).
   1166                   getAsString(Policy) << ' ' << *PDecl;
   1167   if (Policy.PolishForDeclaration)
   1168     Out << ';';
   1169 }
   1170 
   1171 void DeclPrinter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *PID) {
   1172   if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize)
   1173     Out << "@synthesize ";
   1174   else
   1175     Out << "@dynamic ";
   1176   Out << *PID->getPropertyDecl();
   1177   if (PID->getPropertyIvarDecl())
   1178     Out << '=' << *PID->getPropertyIvarDecl();
   1179 }
   1180 
   1181 void DeclPrinter::VisitUsingDecl(UsingDecl *D) {
   1182   if (!D->isAccessDeclaration())
   1183     Out << "using ";
   1184   if (D->hasTypename())
   1185     Out << "typename ";
   1186   D->getQualifier()->print(Out, Policy);
   1187   Out << *D;
   1188 }
   1189 
   1190 void
   1191 DeclPrinter::VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D) {
   1192   Out << "using typename ";
   1193   D->getQualifier()->print(Out, Policy);
   1194   Out << D->getDeclName();
   1195 }
   1196 
   1197 void DeclPrinter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
   1198   if (!D->isAccessDeclaration())
   1199     Out << "using ";
   1200   D->getQualifier()->print(Out, Policy);
   1201   Out << D->getName();
   1202 }
   1203 
   1204 void DeclPrinter::VisitUsingShadowDecl(UsingShadowDecl *D) {
   1205   // ignore
   1206 }
   1207 
   1208 void DeclPrinter::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
   1209   Out << "#pragma omp threadprivate";
   1210   if (!D->varlist_empty()) {
   1211     for (OMPThreadPrivateDecl::varlist_iterator I = D->varlist_begin(),
   1212                                                 E = D->varlist_end();
   1213                                                 I != E; ++I) {
   1214       Out << (I == D->varlist_begin() ? '(' : ',');
   1215       NamedDecl *ND = cast<NamedDecl>(cast<DeclRefExpr>(*I)->getDecl());
   1216       ND->printQualifiedName(Out);
   1217     }
   1218     Out << ")";
   1219   }
   1220 }
   1221 
   1222