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 /// Print an Objective-C method type in parentheses. 41 /// 42 /// \param Quals The Objective-C declaration qualifiers. 43 /// \param T The type to print. 44 void PrintObjCMethodType(ASTContext &Ctx, Decl::ObjCDeclQualifier Quals, 45 QualType T); 46 47 void PrintObjCTypeParams(ObjCTypeParamList *Params); 48 49 public: 50 DeclPrinter(raw_ostream &Out, const PrintingPolicy &Policy, 51 unsigned Indentation = 0, bool PrintInstantiation = false) 52 : Out(Out), Policy(Policy), Indentation(Indentation), 53 PrintInstantiation(PrintInstantiation) { } 54 55 void VisitDeclContext(DeclContext *DC, bool Indent = true); 56 57 void VisitTranslationUnitDecl(TranslationUnitDecl *D); 58 void VisitTypedefDecl(TypedefDecl *D); 59 void VisitTypeAliasDecl(TypeAliasDecl *D); 60 void VisitEnumDecl(EnumDecl *D); 61 void VisitRecordDecl(RecordDecl *D); 62 void VisitEnumConstantDecl(EnumConstantDecl *D); 63 void VisitEmptyDecl(EmptyDecl *D); 64 void VisitFunctionDecl(FunctionDecl *D); 65 void VisitFriendDecl(FriendDecl *D); 66 void VisitFieldDecl(FieldDecl *D); 67 void VisitVarDecl(VarDecl *D); 68 void VisitLabelDecl(LabelDecl *D); 69 void VisitParmVarDecl(ParmVarDecl *D); 70 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D); 71 void VisitImportDecl(ImportDecl *D); 72 void VisitStaticAssertDecl(StaticAssertDecl *D); 73 void VisitNamespaceDecl(NamespaceDecl *D); 74 void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); 75 void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); 76 void VisitCXXRecordDecl(CXXRecordDecl *D); 77 void VisitLinkageSpecDecl(LinkageSpecDecl *D); 78 void VisitTemplateDecl(const TemplateDecl *D); 79 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D); 80 void VisitClassTemplateDecl(ClassTemplateDecl *D); 81 void VisitObjCMethodDecl(ObjCMethodDecl *D); 82 void VisitObjCImplementationDecl(ObjCImplementationDecl *D); 83 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); 84 void VisitObjCProtocolDecl(ObjCProtocolDecl *D); 85 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); 86 void VisitObjCCategoryDecl(ObjCCategoryDecl *D); 87 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D); 88 void VisitObjCPropertyDecl(ObjCPropertyDecl *D); 89 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); 90 void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); 91 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); 92 void VisitUsingDecl(UsingDecl *D); 93 void VisitUsingShadowDecl(UsingShadowDecl *D); 94 void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D); 95 void VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D); 96 void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D); 97 98 void PrintTemplateParameters(const TemplateParameterList *Params, 99 const TemplateArgumentList *Args = nullptr); 100 void prettyPrintAttributes(Decl *D); 101 void prettyPrintPragmas(Decl *D); 102 void printDeclType(QualType T, StringRef DeclName, bool Pack = false); 103 }; 104 } 105 106 void Decl::print(raw_ostream &Out, unsigned Indentation, 107 bool PrintInstantiation) const { 108 print(Out, getASTContext().getPrintingPolicy(), Indentation, PrintInstantiation); 109 } 110 111 void Decl::print(raw_ostream &Out, const PrintingPolicy &Policy, 112 unsigned Indentation, bool PrintInstantiation) const { 113 DeclPrinter Printer(Out, Policy, Indentation, PrintInstantiation); 114 Printer.Visit(const_cast<Decl*>(this)); 115 } 116 117 static QualType GetBaseType(QualType T) { 118 // FIXME: This should be on the Type class! 119 QualType BaseType = T; 120 while (!BaseType->isSpecifierType()) { 121 if (isa<TypedefType>(BaseType)) 122 break; 123 else if (const PointerType* PTy = BaseType->getAs<PointerType>()) 124 BaseType = PTy->getPointeeType(); 125 else if (const BlockPointerType *BPy = BaseType->getAs<BlockPointerType>()) 126 BaseType = BPy->getPointeeType(); 127 else if (const ArrayType* ATy = dyn_cast<ArrayType>(BaseType)) 128 BaseType = ATy->getElementType(); 129 else if (const FunctionType* FTy = BaseType->getAs<FunctionType>()) 130 BaseType = FTy->getReturnType(); 131 else if (const VectorType *VTy = BaseType->getAs<VectorType>()) 132 BaseType = VTy->getElementType(); 133 else if (const ReferenceType *RTy = BaseType->getAs<ReferenceType>()) 134 BaseType = RTy->getPointeeType(); 135 else if (const AutoType *ATy = BaseType->getAs<AutoType>()) 136 BaseType = ATy->getDeducedType(); 137 else 138 llvm_unreachable("Unknown declarator!"); 139 } 140 return BaseType; 141 } 142 143 static QualType getDeclType(Decl* D) { 144 if (TypedefNameDecl* TDD = dyn_cast<TypedefNameDecl>(D)) 145 return TDD->getUnderlyingType(); 146 if (ValueDecl* VD = dyn_cast<ValueDecl>(D)) 147 return VD->getType(); 148 return QualType(); 149 } 150 151 void Decl::printGroup(Decl** Begin, unsigned NumDecls, 152 raw_ostream &Out, const PrintingPolicy &Policy, 153 unsigned Indentation) { 154 if (NumDecls == 1) { 155 (*Begin)->print(Out, Policy, Indentation); 156 return; 157 } 158 159 Decl** End = Begin + NumDecls; 160 TagDecl* TD = dyn_cast<TagDecl>(*Begin); 161 if (TD) 162 ++Begin; 163 164 PrintingPolicy SubPolicy(Policy); 165 166 bool isFirst = true; 167 for ( ; Begin != End; ++Begin) { 168 if (isFirst) { 169 if(TD) 170 SubPolicy.IncludeTagDefinition = true; 171 SubPolicy.SuppressSpecifiers = false; 172 isFirst = false; 173 } else { 174 if (!isFirst) Out << ", "; 175 SubPolicy.IncludeTagDefinition = false; 176 SubPolicy.SuppressSpecifiers = true; 177 } 178 179 (*Begin)->print(Out, SubPolicy, Indentation); 180 } 181 } 182 183 LLVM_DUMP_METHOD void DeclContext::dumpDeclContext() const { 184 // Get the translation unit 185 const DeclContext *DC = this; 186 while (!DC->isTranslationUnit()) 187 DC = DC->getParent(); 188 189 ASTContext &Ctx = cast<TranslationUnitDecl>(DC)->getASTContext(); 190 DeclPrinter Printer(llvm::errs(), Ctx.getPrintingPolicy(), 0); 191 Printer.VisitDeclContext(const_cast<DeclContext *>(this), /*Indent=*/false); 192 } 193 194 raw_ostream& DeclPrinter::Indent(unsigned Indentation) { 195 for (unsigned i = 0; i != Indentation; ++i) 196 Out << " "; 197 return Out; 198 } 199 200 void DeclPrinter::prettyPrintAttributes(Decl *D) { 201 if (Policy.PolishForDeclaration) 202 return; 203 204 if (D->hasAttrs()) { 205 AttrVec &Attrs = D->getAttrs(); 206 for (auto *A : Attrs) { 207 switch (A->getKind()) { 208 #define ATTR(X) 209 #define PRAGMA_SPELLING_ATTR(X) case attr::X: 210 #include "clang/Basic/AttrList.inc" 211 break; 212 default: 213 A->printPretty(Out, Policy); 214 break; 215 } 216 } 217 } 218 } 219 220 void DeclPrinter::prettyPrintPragmas(Decl *D) { 221 if (Policy.PolishForDeclaration) 222 return; 223 224 if (D->hasAttrs()) { 225 AttrVec &Attrs = D->getAttrs(); 226 for (auto *A : Attrs) { 227 switch (A->getKind()) { 228 #define ATTR(X) 229 #define PRAGMA_SPELLING_ATTR(X) case attr::X: 230 #include "clang/Basic/AttrList.inc" 231 A->printPretty(Out, Policy); 232 Indent(); 233 break; 234 default: 235 break; 236 } 237 } 238 } 239 } 240 241 void DeclPrinter::printDeclType(QualType T, StringRef DeclName, bool Pack) { 242 // Normally, a PackExpansionType is written as T[3]... (for instance, as a 243 // template argument), but if it is the type of a declaration, the ellipsis 244 // is placed before the name being declared. 245 if (auto *PET = T->getAs<PackExpansionType>()) { 246 Pack = true; 247 T = PET->getPattern(); 248 } 249 T.print(Out, Policy, (Pack ? "..." : "") + DeclName, Indentation); 250 } 251 252 void DeclPrinter::ProcessDeclGroup(SmallVectorImpl<Decl*>& Decls) { 253 this->Indent(); 254 Decl::printGroup(Decls.data(), Decls.size(), Out, Policy, Indentation); 255 Out << ";\n"; 256 Decls.clear(); 257 258 } 259 260 void DeclPrinter::Print(AccessSpecifier AS) { 261 switch(AS) { 262 case AS_none: llvm_unreachable("No access specifier!"); 263 case AS_public: Out << "public"; break; 264 case AS_protected: Out << "protected"; break; 265 case AS_private: Out << "private"; break; 266 } 267 } 268 269 //---------------------------------------------------------------------------- 270 // Common C declarations 271 //---------------------------------------------------------------------------- 272 273 void DeclPrinter::VisitDeclContext(DeclContext *DC, bool Indent) { 274 if (Policy.TerseOutput) 275 return; 276 277 if (Indent) 278 Indentation += Policy.Indentation; 279 280 SmallVector<Decl*, 2> Decls; 281 for (DeclContext::decl_iterator D = DC->decls_begin(), DEnd = DC->decls_end(); 282 D != DEnd; ++D) { 283 284 // Don't print ObjCIvarDecls, as they are printed when visiting the 285 // containing ObjCInterfaceDecl. 286 if (isa<ObjCIvarDecl>(*D)) 287 continue; 288 289 // Skip over implicit declarations in pretty-printing mode. 290 if (D->isImplicit()) 291 continue; 292 293 // The next bits of code handles stuff like "struct {int x;} a,b"; we're 294 // forced to merge the declarations because there's no other way to 295 // refer to the struct in question. This limited merging is safe without 296 // a bunch of other checks because it only merges declarations directly 297 // referring to the tag, not typedefs. 298 // 299 // Check whether the current declaration should be grouped with a previous 300 // unnamed struct. 301 QualType CurDeclType = getDeclType(*D); 302 if (!Decls.empty() && !CurDeclType.isNull()) { 303 QualType BaseType = GetBaseType(CurDeclType); 304 if (!BaseType.isNull() && isa<ElaboratedType>(BaseType)) 305 BaseType = cast<ElaboratedType>(BaseType)->getNamedType(); 306 if (!BaseType.isNull() && isa<TagType>(BaseType) && 307 cast<TagType>(BaseType)->getDecl() == Decls[0]) { 308 Decls.push_back(*D); 309 continue; 310 } 311 } 312 313 // If we have a merged group waiting to be handled, handle it now. 314 if (!Decls.empty()) 315 ProcessDeclGroup(Decls); 316 317 // If the current declaration is an unnamed tag type, save it 318 // so we can merge it with the subsequent declaration(s) using it. 319 if (isa<TagDecl>(*D) && !cast<TagDecl>(*D)->getIdentifier()) { 320 Decls.push_back(*D); 321 continue; 322 } 323 324 if (isa<AccessSpecDecl>(*D)) { 325 Indentation -= Policy.Indentation; 326 this->Indent(); 327 Print(D->getAccess()); 328 Out << ":\n"; 329 Indentation += Policy.Indentation; 330 continue; 331 } 332 333 this->Indent(); 334 Visit(*D); 335 336 // FIXME: Need to be able to tell the DeclPrinter when 337 const char *Terminator = nullptr; 338 if (isa<OMPThreadPrivateDecl>(*D) || isa<OMPDeclareReductionDecl>(*D)) 339 Terminator = nullptr; 340 else if (isa<FunctionDecl>(*D) && 341 cast<FunctionDecl>(*D)->isThisDeclarationADefinition()) 342 Terminator = nullptr; 343 else if (isa<ObjCMethodDecl>(*D) && cast<ObjCMethodDecl>(*D)->getBody()) 344 Terminator = nullptr; 345 else if (isa<NamespaceDecl>(*D) || isa<LinkageSpecDecl>(*D) || 346 isa<ObjCImplementationDecl>(*D) || 347 isa<ObjCInterfaceDecl>(*D) || 348 isa<ObjCProtocolDecl>(*D) || 349 isa<ObjCCategoryImplDecl>(*D) || 350 isa<ObjCCategoryDecl>(*D)) 351 Terminator = nullptr; 352 else if (isa<EnumConstantDecl>(*D)) { 353 DeclContext::decl_iterator Next = D; 354 ++Next; 355 if (Next != DEnd) 356 Terminator = ","; 357 } else 358 Terminator = ";"; 359 360 if (Terminator) 361 Out << Terminator; 362 Out << "\n"; 363 364 // Declare target attribute is special one, natural spelling for the pragma 365 // assumes "ending" construct so print it here. 366 if (D->hasAttr<OMPDeclareTargetDeclAttr>()) 367 Out << "#pragma omp end declare target\n"; 368 } 369 370 if (!Decls.empty()) 371 ProcessDeclGroup(Decls); 372 373 if (Indent) 374 Indentation -= Policy.Indentation; 375 } 376 377 void DeclPrinter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 378 VisitDeclContext(D, false); 379 } 380 381 void DeclPrinter::VisitTypedefDecl(TypedefDecl *D) { 382 if (!Policy.SuppressSpecifiers) { 383 Out << "typedef "; 384 385 if (D->isModulePrivate()) 386 Out << "__module_private__ "; 387 } 388 QualType Ty = D->getTypeSourceInfo()->getType(); 389 Ty.print(Out, Policy, D->getName(), Indentation); 390 prettyPrintAttributes(D); 391 } 392 393 void DeclPrinter::VisitTypeAliasDecl(TypeAliasDecl *D) { 394 Out << "using " << *D; 395 prettyPrintAttributes(D); 396 Out << " = " << D->getTypeSourceInfo()->getType().getAsString(Policy); 397 } 398 399 void DeclPrinter::VisitEnumDecl(EnumDecl *D) { 400 if (!Policy.SuppressSpecifiers && D->isModulePrivate()) 401 Out << "__module_private__ "; 402 Out << "enum "; 403 if (D->isScoped()) { 404 if (D->isScopedUsingClassTag()) 405 Out << "class "; 406 else 407 Out << "struct "; 408 } 409 Out << *D; 410 411 if (D->isFixed()) 412 Out << " : " << D->getIntegerType().stream(Policy); 413 414 if (D->isCompleteDefinition()) { 415 Out << " {\n"; 416 VisitDeclContext(D); 417 Indent() << "}"; 418 } 419 prettyPrintAttributes(D); 420 } 421 422 void DeclPrinter::VisitRecordDecl(RecordDecl *D) { 423 if (!Policy.SuppressSpecifiers && D->isModulePrivate()) 424 Out << "__module_private__ "; 425 Out << D->getKindName(); 426 427 prettyPrintAttributes(D); 428 429 if (D->getIdentifier()) 430 Out << ' ' << *D; 431 432 if (D->isCompleteDefinition()) { 433 Out << " {\n"; 434 VisitDeclContext(D); 435 Indent() << "}"; 436 } 437 } 438 439 void DeclPrinter::VisitEnumConstantDecl(EnumConstantDecl *D) { 440 Out << *D; 441 if (Expr *Init = D->getInitExpr()) { 442 Out << " = "; 443 Init->printPretty(Out, nullptr, Policy, Indentation); 444 } 445 } 446 447 void DeclPrinter::VisitFunctionDecl(FunctionDecl *D) { 448 if (!D->getDescribedFunctionTemplate() && 449 !D->isFunctionTemplateSpecialization()) 450 prettyPrintPragmas(D); 451 452 CXXConstructorDecl *CDecl = dyn_cast<CXXConstructorDecl>(D); 453 CXXConversionDecl *ConversionDecl = dyn_cast<CXXConversionDecl>(D); 454 if (!Policy.SuppressSpecifiers) { 455 switch (D->getStorageClass()) { 456 case SC_None: break; 457 case SC_Extern: Out << "extern "; break; 458 case SC_Static: Out << "static "; break; 459 case SC_PrivateExtern: Out << "__private_extern__ "; break; 460 case SC_Auto: case SC_Register: 461 llvm_unreachable("invalid for functions"); 462 } 463 464 if (D->isInlineSpecified()) Out << "inline "; 465 if (D->isVirtualAsWritten()) Out << "virtual "; 466 if (D->isModulePrivate()) Out << "__module_private__ "; 467 if (D->isConstexpr() && !D->isExplicitlyDefaulted()) Out << "constexpr "; 468 if ((CDecl && CDecl->isExplicitSpecified()) || 469 (ConversionDecl && ConversionDecl->isExplicit())) 470 Out << "explicit "; 471 } 472 473 PrintingPolicy SubPolicy(Policy); 474 SubPolicy.SuppressSpecifiers = false; 475 std::string Proto = D->getNameInfo().getAsString(); 476 477 QualType Ty = D->getType(); 478 while (const ParenType *PT = dyn_cast<ParenType>(Ty)) { 479 Proto = '(' + Proto + ')'; 480 Ty = PT->getInnerType(); 481 } 482 483 if (const FunctionType *AFT = Ty->getAs<FunctionType>()) { 484 const FunctionProtoType *FT = nullptr; 485 if (D->hasWrittenPrototype()) 486 FT = dyn_cast<FunctionProtoType>(AFT); 487 488 Proto += "("; 489 if (FT) { 490 llvm::raw_string_ostream POut(Proto); 491 DeclPrinter ParamPrinter(POut, SubPolicy, Indentation); 492 for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 493 if (i) POut << ", "; 494 ParamPrinter.VisitParmVarDecl(D->getParamDecl(i)); 495 } 496 497 if (FT->isVariadic()) { 498 if (D->getNumParams()) POut << ", "; 499 POut << "..."; 500 } 501 } else if (D->doesThisDeclarationHaveABody() && !D->hasPrototype()) { 502 for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 503 if (i) 504 Proto += ", "; 505 Proto += D->getParamDecl(i)->getNameAsString(); 506 } 507 } 508 509 Proto += ")"; 510 511 if (FT) { 512 if (FT->isConst()) 513 Proto += " const"; 514 if (FT->isVolatile()) 515 Proto += " volatile"; 516 if (FT->isRestrict()) 517 Proto += " restrict"; 518 519 switch (FT->getRefQualifier()) { 520 case RQ_None: 521 break; 522 case RQ_LValue: 523 Proto += " &"; 524 break; 525 case RQ_RValue: 526 Proto += " &&"; 527 break; 528 } 529 } 530 531 if (FT && FT->hasDynamicExceptionSpec()) { 532 Proto += " throw("; 533 if (FT->getExceptionSpecType() == EST_MSAny) 534 Proto += "..."; 535 else 536 for (unsigned I = 0, N = FT->getNumExceptions(); I != N; ++I) { 537 if (I) 538 Proto += ", "; 539 540 Proto += FT->getExceptionType(I).getAsString(SubPolicy); 541 } 542 Proto += ")"; 543 } else if (FT && isNoexceptExceptionSpec(FT->getExceptionSpecType())) { 544 Proto += " noexcept"; 545 if (FT->getExceptionSpecType() == EST_ComputedNoexcept) { 546 Proto += "("; 547 llvm::raw_string_ostream EOut(Proto); 548 FT->getNoexceptExpr()->printPretty(EOut, nullptr, SubPolicy, 549 Indentation); 550 EOut.flush(); 551 Proto += EOut.str(); 552 Proto += ")"; 553 } 554 } 555 556 if (CDecl) { 557 bool HasInitializerList = false; 558 for (const auto *BMInitializer : CDecl->inits()) { 559 if (BMInitializer->isInClassMemberInitializer()) 560 continue; 561 562 if (!HasInitializerList) { 563 Proto += " : "; 564 Out << Proto; 565 Proto.clear(); 566 HasInitializerList = true; 567 } else 568 Out << ", "; 569 570 if (BMInitializer->isAnyMemberInitializer()) { 571 FieldDecl *FD = BMInitializer->getAnyMember(); 572 Out << *FD; 573 } else { 574 Out << QualType(BMInitializer->getBaseClass(), 0).getAsString(Policy); 575 } 576 577 Out << "("; 578 if (!BMInitializer->getInit()) { 579 // Nothing to print 580 } else { 581 Expr *Init = BMInitializer->getInit(); 582 if (ExprWithCleanups *Tmp = dyn_cast<ExprWithCleanups>(Init)) 583 Init = Tmp->getSubExpr(); 584 585 Init = Init->IgnoreParens(); 586 587 Expr *SimpleInit = nullptr; 588 Expr **Args = nullptr; 589 unsigned NumArgs = 0; 590 if (ParenListExpr *ParenList = dyn_cast<ParenListExpr>(Init)) { 591 Args = ParenList->getExprs(); 592 NumArgs = ParenList->getNumExprs(); 593 } else if (CXXConstructExpr *Construct 594 = dyn_cast<CXXConstructExpr>(Init)) { 595 Args = Construct->getArgs(); 596 NumArgs = Construct->getNumArgs(); 597 } else 598 SimpleInit = Init; 599 600 if (SimpleInit) 601 SimpleInit->printPretty(Out, nullptr, Policy, Indentation); 602 else { 603 for (unsigned I = 0; I != NumArgs; ++I) { 604 assert(Args[I] != nullptr && "Expected non-null Expr"); 605 if (isa<CXXDefaultArgExpr>(Args[I])) 606 break; 607 608 if (I) 609 Out << ", "; 610 Args[I]->printPretty(Out, nullptr, Policy, Indentation); 611 } 612 } 613 } 614 Out << ")"; 615 if (BMInitializer->isPackExpansion()) 616 Out << "..."; 617 } 618 } else if (!ConversionDecl && !isa<CXXDestructorDecl>(D)) { 619 if (FT && FT->hasTrailingReturn()) { 620 Out << "auto " << Proto << " -> "; 621 Proto.clear(); 622 } 623 AFT->getReturnType().print(Out, Policy, Proto); 624 Proto.clear(); 625 } 626 Out << Proto; 627 } else { 628 Ty.print(Out, Policy, Proto); 629 } 630 631 prettyPrintAttributes(D); 632 633 if (D->isPure()) 634 Out << " = 0"; 635 else if (D->isDeletedAsWritten()) 636 Out << " = delete"; 637 else if (D->isExplicitlyDefaulted()) 638 Out << " = default"; 639 else if (D->doesThisDeclarationHaveABody() && !Policy.TerseOutput) { 640 if (!D->hasPrototype() && D->getNumParams()) { 641 // This is a K&R function definition, so we need to print the 642 // parameters. 643 Out << '\n'; 644 DeclPrinter ParamPrinter(Out, SubPolicy, Indentation); 645 Indentation += Policy.Indentation; 646 for (unsigned i = 0, e = D->getNumParams(); i != e; ++i) { 647 Indent(); 648 ParamPrinter.VisitParmVarDecl(D->getParamDecl(i)); 649 Out << ";\n"; 650 } 651 Indentation -= Policy.Indentation; 652 } else 653 Out << ' '; 654 655 if (D->getBody()) 656 D->getBody()->printPretty(Out, nullptr, SubPolicy, Indentation); 657 Out << '\n'; 658 } 659 } 660 661 void DeclPrinter::VisitFriendDecl(FriendDecl *D) { 662 if (TypeSourceInfo *TSI = D->getFriendType()) { 663 unsigned NumTPLists = D->getFriendTypeNumTemplateParameterLists(); 664 for (unsigned i = 0; i < NumTPLists; ++i) 665 PrintTemplateParameters(D->getFriendTypeTemplateParameterList(i)); 666 Out << "friend "; 667 Out << " " << TSI->getType().getAsString(Policy); 668 } 669 else if (FunctionDecl *FD = 670 dyn_cast<FunctionDecl>(D->getFriendDecl())) { 671 Out << "friend "; 672 VisitFunctionDecl(FD); 673 } 674 else if (FunctionTemplateDecl *FTD = 675 dyn_cast<FunctionTemplateDecl>(D->getFriendDecl())) { 676 Out << "friend "; 677 VisitFunctionTemplateDecl(FTD); 678 } 679 else if (ClassTemplateDecl *CTD = 680 dyn_cast<ClassTemplateDecl>(D->getFriendDecl())) { 681 Out << "friend "; 682 VisitRedeclarableTemplateDecl(CTD); 683 } 684 } 685 686 void DeclPrinter::VisitFieldDecl(FieldDecl *D) { 687 // FIXME: add printing of pragma attributes if required. 688 if (!Policy.SuppressSpecifiers && D->isMutable()) 689 Out << "mutable "; 690 if (!Policy.SuppressSpecifiers && D->isModulePrivate()) 691 Out << "__module_private__ "; 692 693 Out << D->getASTContext().getUnqualifiedObjCPointerType(D->getType()). 694 stream(Policy, D->getName(), Indentation); 695 696 if (D->isBitField()) { 697 Out << " : "; 698 D->getBitWidth()->printPretty(Out, nullptr, Policy, Indentation); 699 } 700 701 Expr *Init = D->getInClassInitializer(); 702 if (!Policy.SuppressInitializers && Init) { 703 if (D->getInClassInitStyle() == ICIS_ListInit) 704 Out << " "; 705 else 706 Out << " = "; 707 Init->printPretty(Out, nullptr, Policy, Indentation); 708 } 709 prettyPrintAttributes(D); 710 } 711 712 void DeclPrinter::VisitLabelDecl(LabelDecl *D) { 713 Out << *D << ":"; 714 } 715 716 void DeclPrinter::VisitVarDecl(VarDecl *D) { 717 prettyPrintPragmas(D); 718 719 QualType T = D->getTypeSourceInfo() 720 ? D->getTypeSourceInfo()->getType() 721 : D->getASTContext().getUnqualifiedObjCPointerType(D->getType()); 722 723 if (!Policy.SuppressSpecifiers) { 724 StorageClass SC = D->getStorageClass(); 725 if (SC != SC_None) 726 Out << VarDecl::getStorageClassSpecifierString(SC) << " "; 727 728 switch (D->getTSCSpec()) { 729 case TSCS_unspecified: 730 break; 731 case TSCS___thread: 732 Out << "__thread "; 733 break; 734 case TSCS__Thread_local: 735 Out << "_Thread_local "; 736 break; 737 case TSCS_thread_local: 738 Out << "thread_local "; 739 break; 740 } 741 742 if (D->isModulePrivate()) 743 Out << "__module_private__ "; 744 745 if (D->isConstexpr()) { 746 Out << "constexpr "; 747 T.removeLocalConst(); 748 } 749 } 750 751 printDeclType(T, D->getName()); 752 Expr *Init = D->getInit(); 753 if (!Policy.SuppressInitializers && Init) { 754 bool ImplicitInit = false; 755 if (CXXConstructExpr *Construct = 756 dyn_cast<CXXConstructExpr>(Init->IgnoreImplicit())) { 757 if (D->getInitStyle() == VarDecl::CallInit && 758 !Construct->isListInitialization()) { 759 ImplicitInit = Construct->getNumArgs() == 0 || 760 Construct->getArg(0)->isDefaultArgument(); 761 } 762 } 763 if (!ImplicitInit) { 764 if ((D->getInitStyle() == VarDecl::CallInit) && !isa<ParenListExpr>(Init)) 765 Out << "("; 766 else if (D->getInitStyle() == VarDecl::CInit) { 767 Out << " = "; 768 } 769 PrintingPolicy SubPolicy(Policy); 770 SubPolicy.SuppressSpecifiers = false; 771 SubPolicy.IncludeTagDefinition = false; 772 Init->printPretty(Out, nullptr, SubPolicy, Indentation); 773 if ((D->getInitStyle() == VarDecl::CallInit) && !isa<ParenListExpr>(Init)) 774 Out << ")"; 775 } 776 } 777 prettyPrintAttributes(D); 778 } 779 780 void DeclPrinter::VisitParmVarDecl(ParmVarDecl *D) { 781 VisitVarDecl(D); 782 } 783 784 void DeclPrinter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { 785 Out << "__asm ("; 786 D->getAsmString()->printPretty(Out, nullptr, Policy, Indentation); 787 Out << ")"; 788 } 789 790 void DeclPrinter::VisitImportDecl(ImportDecl *D) { 791 Out << "@import " << D->getImportedModule()->getFullModuleName() 792 << ";\n"; 793 } 794 795 void DeclPrinter::VisitStaticAssertDecl(StaticAssertDecl *D) { 796 Out << "static_assert("; 797 D->getAssertExpr()->printPretty(Out, nullptr, Policy, Indentation); 798 if (StringLiteral *SL = D->getMessage()) { 799 Out << ", "; 800 SL->printPretty(Out, nullptr, Policy, Indentation); 801 } 802 Out << ")"; 803 } 804 805 //---------------------------------------------------------------------------- 806 // C++ declarations 807 //---------------------------------------------------------------------------- 808 void DeclPrinter::VisitNamespaceDecl(NamespaceDecl *D) { 809 if (D->isInline()) 810 Out << "inline "; 811 Out << "namespace " << *D << " {\n"; 812 VisitDeclContext(D); 813 Indent() << "}"; 814 } 815 816 void DeclPrinter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 817 Out << "using namespace "; 818 if (D->getQualifier()) 819 D->getQualifier()->print(Out, Policy); 820 Out << *D->getNominatedNamespaceAsWritten(); 821 } 822 823 void DeclPrinter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 824 Out << "namespace " << *D << " = "; 825 if (D->getQualifier()) 826 D->getQualifier()->print(Out, Policy); 827 Out << *D->getAliasedNamespace(); 828 } 829 830 void DeclPrinter::VisitEmptyDecl(EmptyDecl *D) { 831 prettyPrintAttributes(D); 832 } 833 834 void DeclPrinter::VisitCXXRecordDecl(CXXRecordDecl *D) { 835 // FIXME: add printing of pragma attributes if required. 836 if (!Policy.SuppressSpecifiers && D->isModulePrivate()) 837 Out << "__module_private__ "; 838 Out << D->getKindName(); 839 840 prettyPrintAttributes(D); 841 842 if (D->getIdentifier()) 843 Out << ' ' << *D; 844 845 if (D->isCompleteDefinition()) { 846 // Print the base classes 847 if (D->getNumBases()) { 848 Out << " : "; 849 for (CXXRecordDecl::base_class_iterator Base = D->bases_begin(), 850 BaseEnd = D->bases_end(); Base != BaseEnd; ++Base) { 851 if (Base != D->bases_begin()) 852 Out << ", "; 853 854 if (Base->isVirtual()) 855 Out << "virtual "; 856 857 AccessSpecifier AS = Base->getAccessSpecifierAsWritten(); 858 if (AS != AS_none) { 859 Print(AS); 860 Out << " "; 861 } 862 Out << Base->getType().getAsString(Policy); 863 864 if (Base->isPackExpansion()) 865 Out << "..."; 866 } 867 } 868 869 // Print the class definition 870 // FIXME: Doesn't print access specifiers, e.g., "public:" 871 Out << " {\n"; 872 VisitDeclContext(D); 873 Indent() << "}"; 874 } 875 } 876 877 void DeclPrinter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 878 const char *l; 879 if (D->getLanguage() == LinkageSpecDecl::lang_c) 880 l = "C"; 881 else { 882 assert(D->getLanguage() == LinkageSpecDecl::lang_cxx && 883 "unknown language in linkage specification"); 884 l = "C++"; 885 } 886 887 Out << "extern \"" << l << "\" "; 888 if (D->hasBraces()) { 889 Out << "{\n"; 890 VisitDeclContext(D); 891 Indent() << "}"; 892 } else 893 Visit(*D->decls_begin()); 894 } 895 896 void DeclPrinter::PrintTemplateParameters(const TemplateParameterList *Params, 897 const TemplateArgumentList *Args) { 898 assert(Params); 899 assert(!Args || Params->size() == Args->size()); 900 901 Out << "template <"; 902 903 for (unsigned i = 0, e = Params->size(); i != e; ++i) { 904 if (i != 0) 905 Out << ", "; 906 907 const Decl *Param = Params->getParam(i); 908 if (const TemplateTypeParmDecl *TTP = 909 dyn_cast<TemplateTypeParmDecl>(Param)) { 910 911 if (TTP->wasDeclaredWithTypename()) 912 Out << "typename "; 913 else 914 Out << "class "; 915 916 if (TTP->isParameterPack()) 917 Out << "..."; 918 919 Out << *TTP; 920 921 if (Args) { 922 Out << " = "; 923 Args->get(i).print(Policy, Out); 924 } else if (TTP->hasDefaultArgument()) { 925 Out << " = "; 926 Out << TTP->getDefaultArgument().getAsString(Policy); 927 }; 928 } else if (const NonTypeTemplateParmDecl *NTTP = 929 dyn_cast<NonTypeTemplateParmDecl>(Param)) { 930 StringRef Name; 931 if (IdentifierInfo *II = NTTP->getIdentifier()) 932 Name = II->getName(); 933 printDeclType(NTTP->getType(), Name, NTTP->isParameterPack()); 934 935 if (Args) { 936 Out << " = "; 937 Args->get(i).print(Policy, Out); 938 } else if (NTTP->hasDefaultArgument()) { 939 Out << " = "; 940 NTTP->getDefaultArgument()->printPretty(Out, nullptr, Policy, 941 Indentation); 942 } 943 } else if (const TemplateTemplateParmDecl *TTPD = 944 dyn_cast<TemplateTemplateParmDecl>(Param)) { 945 VisitTemplateDecl(TTPD); 946 // FIXME: print the default argument, if present. 947 } 948 } 949 950 Out << "> "; 951 } 952 953 void DeclPrinter::VisitTemplateDecl(const TemplateDecl *D) { 954 PrintTemplateParameters(D->getTemplateParameters()); 955 956 if (const TemplateTemplateParmDecl *TTP = 957 dyn_cast<TemplateTemplateParmDecl>(D)) { 958 Out << "class "; 959 if (TTP->isParameterPack()) 960 Out << "..."; 961 Out << D->getName(); 962 } else { 963 Visit(D->getTemplatedDecl()); 964 } 965 } 966 967 void DeclPrinter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { 968 if (PrintInstantiation) { 969 TemplateParameterList *Params = D->getTemplateParameters(); 970 for (auto *I : D->specializations()) { 971 prettyPrintPragmas(I); 972 PrintTemplateParameters(Params, I->getTemplateSpecializationArgs()); 973 Visit(I); 974 } 975 } 976 977 prettyPrintPragmas(D->getTemplatedDecl()); 978 return VisitRedeclarableTemplateDecl(D); 979 } 980 981 void DeclPrinter::VisitClassTemplateDecl(ClassTemplateDecl *D) { 982 if (PrintInstantiation) { 983 TemplateParameterList *Params = D->getTemplateParameters(); 984 for (auto *I : D->specializations()) { 985 PrintTemplateParameters(Params, &I->getTemplateArgs()); 986 Visit(I); 987 Out << '\n'; 988 } 989 } 990 991 return VisitRedeclarableTemplateDecl(D); 992 } 993 994 //---------------------------------------------------------------------------- 995 // Objective-C declarations 996 //---------------------------------------------------------------------------- 997 998 void DeclPrinter::PrintObjCMethodType(ASTContext &Ctx, 999 Decl::ObjCDeclQualifier Quals, 1000 QualType T) { 1001 Out << '('; 1002 if (Quals & Decl::ObjCDeclQualifier::OBJC_TQ_In) 1003 Out << "in "; 1004 if (Quals & Decl::ObjCDeclQualifier::OBJC_TQ_Inout) 1005 Out << "inout "; 1006 if (Quals & Decl::ObjCDeclQualifier::OBJC_TQ_Out) 1007 Out << "out "; 1008 if (Quals & Decl::ObjCDeclQualifier::OBJC_TQ_Bycopy) 1009 Out << "bycopy "; 1010 if (Quals & Decl::ObjCDeclQualifier::OBJC_TQ_Byref) 1011 Out << "byref "; 1012 if (Quals & Decl::ObjCDeclQualifier::OBJC_TQ_Oneway) 1013 Out << "oneway "; 1014 if (Quals & Decl::ObjCDeclQualifier::OBJC_TQ_CSNullability) { 1015 if (auto nullability = AttributedType::stripOuterNullability(T)) 1016 Out << getNullabilitySpelling(*nullability, true) << ' '; 1017 } 1018 1019 Out << Ctx.getUnqualifiedObjCPointerType(T).getAsString(Policy); 1020 Out << ')'; 1021 } 1022 1023 void DeclPrinter::PrintObjCTypeParams(ObjCTypeParamList *Params) { 1024 Out << "<"; 1025 unsigned First = true; 1026 for (auto *Param : *Params) { 1027 if (First) { 1028 First = false; 1029 } else { 1030 Out << ", "; 1031 } 1032 1033 switch (Param->getVariance()) { 1034 case ObjCTypeParamVariance::Invariant: 1035 break; 1036 1037 case ObjCTypeParamVariance::Covariant: 1038 Out << "__covariant "; 1039 break; 1040 1041 case ObjCTypeParamVariance::Contravariant: 1042 Out << "__contravariant "; 1043 break; 1044 } 1045 1046 Out << Param->getDeclName().getAsString(); 1047 1048 if (Param->hasExplicitBound()) { 1049 Out << " : " << Param->getUnderlyingType().getAsString(Policy); 1050 } 1051 } 1052 Out << ">"; 1053 } 1054 1055 void DeclPrinter::VisitObjCMethodDecl(ObjCMethodDecl *OMD) { 1056 if (OMD->isInstanceMethod()) 1057 Out << "- "; 1058 else 1059 Out << "+ "; 1060 if (!OMD->getReturnType().isNull()) { 1061 PrintObjCMethodType(OMD->getASTContext(), OMD->getObjCDeclQualifier(), 1062 OMD->getReturnType()); 1063 } 1064 1065 std::string name = OMD->getSelector().getAsString(); 1066 std::string::size_type pos, lastPos = 0; 1067 for (const auto *PI : OMD->parameters()) { 1068 // FIXME: selector is missing here! 1069 pos = name.find_first_of(':', lastPos); 1070 Out << " " << name.substr(lastPos, pos - lastPos) << ':'; 1071 PrintObjCMethodType(OMD->getASTContext(), 1072 PI->getObjCDeclQualifier(), 1073 PI->getType()); 1074 Out << *PI; 1075 lastPos = pos + 1; 1076 } 1077 1078 if (OMD->param_begin() == OMD->param_end()) 1079 Out << " " << name; 1080 1081 if (OMD->isVariadic()) 1082 Out << ", ..."; 1083 1084 prettyPrintAttributes(OMD); 1085 1086 if (OMD->getBody() && !Policy.TerseOutput) { 1087 Out << ' '; 1088 OMD->getBody()->printPretty(Out, nullptr, Policy); 1089 } 1090 else if (Policy.PolishForDeclaration) 1091 Out << ';'; 1092 } 1093 1094 void DeclPrinter::VisitObjCImplementationDecl(ObjCImplementationDecl *OID) { 1095 std::string I = OID->getNameAsString(); 1096 ObjCInterfaceDecl *SID = OID->getSuperClass(); 1097 1098 bool eolnOut = false; 1099 if (SID) 1100 Out << "@implementation " << I << " : " << *SID; 1101 else 1102 Out << "@implementation " << I; 1103 1104 if (OID->ivar_size() > 0) { 1105 Out << "{\n"; 1106 eolnOut = true; 1107 Indentation += Policy.Indentation; 1108 for (const auto *I : OID->ivars()) { 1109 Indent() << I->getASTContext().getUnqualifiedObjCPointerType(I->getType()). 1110 getAsString(Policy) << ' ' << *I << ";\n"; 1111 } 1112 Indentation -= Policy.Indentation; 1113 Out << "}\n"; 1114 } 1115 else if (SID || (OID->decls_begin() != OID->decls_end())) { 1116 Out << "\n"; 1117 eolnOut = true; 1118 } 1119 VisitDeclContext(OID, false); 1120 if (!eolnOut) 1121 Out << "\n"; 1122 Out << "@end"; 1123 } 1124 1125 void DeclPrinter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *OID) { 1126 std::string I = OID->getNameAsString(); 1127 ObjCInterfaceDecl *SID = OID->getSuperClass(); 1128 1129 if (!OID->isThisDeclarationADefinition()) { 1130 Out << "@class " << I; 1131 1132 if (auto TypeParams = OID->getTypeParamListAsWritten()) { 1133 PrintObjCTypeParams(TypeParams); 1134 } 1135 1136 Out << ";"; 1137 return; 1138 } 1139 bool eolnOut = false; 1140 Out << "@interface " << I; 1141 1142 if (auto TypeParams = OID->getTypeParamListAsWritten()) { 1143 PrintObjCTypeParams(TypeParams); 1144 } 1145 1146 if (SID) 1147 Out << " : " << QualType(OID->getSuperClassType(), 0).getAsString(Policy); 1148 1149 // Protocols? 1150 const ObjCList<ObjCProtocolDecl> &Protocols = OID->getReferencedProtocols(); 1151 if (!Protocols.empty()) { 1152 for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(), 1153 E = Protocols.end(); I != E; ++I) 1154 Out << (I == Protocols.begin() ? '<' : ',') << **I; 1155 Out << "> "; 1156 } 1157 1158 if (OID->ivar_size() > 0) { 1159 Out << "{\n"; 1160 eolnOut = true; 1161 Indentation += Policy.Indentation; 1162 for (const auto *I : OID->ivars()) { 1163 Indent() << I->getASTContext() 1164 .getUnqualifiedObjCPointerType(I->getType()) 1165 .getAsString(Policy) << ' ' << *I << ";\n"; 1166 } 1167 Indentation -= Policy.Indentation; 1168 Out << "}\n"; 1169 } 1170 else if (SID || (OID->decls_begin() != OID->decls_end())) { 1171 Out << "\n"; 1172 eolnOut = true; 1173 } 1174 1175 VisitDeclContext(OID, false); 1176 if (!eolnOut) 1177 Out << "\n"; 1178 Out << "@end"; 1179 // FIXME: implement the rest... 1180 } 1181 1182 void DeclPrinter::VisitObjCProtocolDecl(ObjCProtocolDecl *PID) { 1183 if (!PID->isThisDeclarationADefinition()) { 1184 Out << "@protocol " << *PID << ";\n"; 1185 return; 1186 } 1187 // Protocols? 1188 const ObjCList<ObjCProtocolDecl> &Protocols = PID->getReferencedProtocols(); 1189 if (!Protocols.empty()) { 1190 Out << "@protocol " << *PID; 1191 for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(), 1192 E = Protocols.end(); I != E; ++I) 1193 Out << (I == Protocols.begin() ? '<' : ',') << **I; 1194 Out << ">\n"; 1195 } else 1196 Out << "@protocol " << *PID << '\n'; 1197 VisitDeclContext(PID, false); 1198 Out << "@end"; 1199 } 1200 1201 void DeclPrinter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *PID) { 1202 Out << "@implementation " << *PID->getClassInterface() << '(' << *PID <<")\n"; 1203 1204 VisitDeclContext(PID, false); 1205 Out << "@end"; 1206 // FIXME: implement the rest... 1207 } 1208 1209 void DeclPrinter::VisitObjCCategoryDecl(ObjCCategoryDecl *PID) { 1210 Out << "@interface " << *PID->getClassInterface(); 1211 if (auto TypeParams = PID->getTypeParamList()) { 1212 PrintObjCTypeParams(TypeParams); 1213 } 1214 Out << "(" << *PID << ")\n"; 1215 if (PID->ivar_size() > 0) { 1216 Out << "{\n"; 1217 Indentation += Policy.Indentation; 1218 for (const auto *I : PID->ivars()) 1219 Indent() << I->getASTContext().getUnqualifiedObjCPointerType(I->getType()). 1220 getAsString(Policy) << ' ' << *I << ";\n"; 1221 Indentation -= Policy.Indentation; 1222 Out << "}\n"; 1223 } 1224 1225 VisitDeclContext(PID, false); 1226 Out << "@end"; 1227 1228 // FIXME: implement the rest... 1229 } 1230 1231 void DeclPrinter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *AID) { 1232 Out << "@compatibility_alias " << *AID 1233 << ' ' << *AID->getClassInterface() << ";\n"; 1234 } 1235 1236 /// PrintObjCPropertyDecl - print a property declaration. 1237 /// 1238 void DeclPrinter::VisitObjCPropertyDecl(ObjCPropertyDecl *PDecl) { 1239 if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Required) 1240 Out << "@required\n"; 1241 else if (PDecl->getPropertyImplementation() == ObjCPropertyDecl::Optional) 1242 Out << "@optional\n"; 1243 1244 QualType T = PDecl->getType(); 1245 1246 Out << "@property"; 1247 if (PDecl->getPropertyAttributes() != ObjCPropertyDecl::OBJC_PR_noattr) { 1248 bool first = true; 1249 Out << " ("; 1250 if (PDecl->getPropertyAttributes() & 1251 ObjCPropertyDecl::OBJC_PR_readonly) { 1252 Out << (first ? ' ' : ',') << "readonly"; 1253 first = false; 1254 } 1255 1256 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 1257 Out << (first ? ' ' : ',') << "getter = "; 1258 PDecl->getGetterName().print(Out); 1259 first = false; 1260 } 1261 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 1262 Out << (first ? ' ' : ',') << "setter = "; 1263 PDecl->getSetterName().print(Out); 1264 first = false; 1265 } 1266 1267 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_assign) { 1268 Out << (first ? ' ' : ',') << "assign"; 1269 first = false; 1270 } 1271 1272 if (PDecl->getPropertyAttributes() & 1273 ObjCPropertyDecl::OBJC_PR_readwrite) { 1274 Out << (first ? ' ' : ',') << "readwrite"; 1275 first = false; 1276 } 1277 1278 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_retain) { 1279 Out << (first ? ' ' : ',') << "retain"; 1280 first = false; 1281 } 1282 1283 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_strong) { 1284 Out << (first ? ' ' : ',') << "strong"; 1285 first = false; 1286 } 1287 1288 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_copy) { 1289 Out << (first ? ' ' : ',') << "copy"; 1290 first = false; 1291 } 1292 1293 if (PDecl->getPropertyAttributes() & 1294 ObjCPropertyDecl::OBJC_PR_nonatomic) { 1295 Out << (first ? ' ' : ',') << "nonatomic"; 1296 first = false; 1297 } 1298 if (PDecl->getPropertyAttributes() & 1299 ObjCPropertyDecl::OBJC_PR_atomic) { 1300 Out << (first ? ' ' : ',') << "atomic"; 1301 first = false; 1302 } 1303 1304 if (PDecl->getPropertyAttributes() & 1305 ObjCPropertyDecl::OBJC_PR_nullability) { 1306 if (auto nullability = AttributedType::stripOuterNullability(T)) { 1307 if (*nullability == NullabilityKind::Unspecified && 1308 (PDecl->getPropertyAttributes() & 1309 ObjCPropertyDecl::OBJC_PR_null_resettable)) { 1310 Out << (first ? ' ' : ',') << "null_resettable"; 1311 } else { 1312 Out << (first ? ' ' : ',') 1313 << getNullabilitySpelling(*nullability, true); 1314 } 1315 first = false; 1316 } 1317 } 1318 1319 if (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_class) { 1320 Out << (first ? ' ' : ',') << "class"; 1321 first = false; 1322 } 1323 1324 (void) first; // Silence dead store warning due to idiomatic code. 1325 Out << " )"; 1326 } 1327 Out << ' ' << PDecl->getASTContext().getUnqualifiedObjCPointerType(T). 1328 getAsString(Policy) << ' ' << *PDecl; 1329 if (Policy.PolishForDeclaration) 1330 Out << ';'; 1331 } 1332 1333 void DeclPrinter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *PID) { 1334 if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize) 1335 Out << "@synthesize "; 1336 else 1337 Out << "@dynamic "; 1338 Out << *PID->getPropertyDecl(); 1339 if (PID->getPropertyIvarDecl()) 1340 Out << '=' << *PID->getPropertyIvarDecl(); 1341 } 1342 1343 void DeclPrinter::VisitUsingDecl(UsingDecl *D) { 1344 if (!D->isAccessDeclaration()) 1345 Out << "using "; 1346 if (D->hasTypename()) 1347 Out << "typename "; 1348 D->getQualifier()->print(Out, Policy); 1349 Out << *D; 1350 } 1351 1352 void 1353 DeclPrinter::VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D) { 1354 Out << "using typename "; 1355 D->getQualifier()->print(Out, Policy); 1356 Out << D->getDeclName(); 1357 } 1358 1359 void DeclPrinter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 1360 if (!D->isAccessDeclaration()) 1361 Out << "using "; 1362 D->getQualifier()->print(Out, Policy); 1363 Out << D->getDeclName(); 1364 } 1365 1366 void DeclPrinter::VisitUsingShadowDecl(UsingShadowDecl *D) { 1367 // ignore 1368 } 1369 1370 void DeclPrinter::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) { 1371 Out << "#pragma omp threadprivate"; 1372 if (!D->varlist_empty()) { 1373 for (OMPThreadPrivateDecl::varlist_iterator I = D->varlist_begin(), 1374 E = D->varlist_end(); 1375 I != E; ++I) { 1376 Out << (I == D->varlist_begin() ? '(' : ','); 1377 NamedDecl *ND = cast<NamedDecl>(cast<DeclRefExpr>(*I)->getDecl()); 1378 ND->printQualifiedName(Out); 1379 } 1380 Out << ")"; 1381 } 1382 } 1383 1384 void DeclPrinter::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) { 1385 if (!D->isInvalidDecl()) { 1386 Out << "#pragma omp declare reduction ("; 1387 if (D->getDeclName().getNameKind() == DeclarationName::CXXOperatorName) { 1388 static const char *const OperatorNames[NUM_OVERLOADED_OPERATORS] = { 1389 nullptr, 1390 #define OVERLOADED_OPERATOR(Name, Spelling, Token, Unary, Binary, MemberOnly) \ 1391 Spelling, 1392 #include "clang/Basic/OperatorKinds.def" 1393 }; 1394 const char *OpName = 1395 OperatorNames[D->getDeclName().getCXXOverloadedOperator()]; 1396 assert(OpName && "not an overloaded operator"); 1397 Out << OpName; 1398 } else { 1399 assert(D->getDeclName().isIdentifier()); 1400 D->printName(Out); 1401 } 1402 Out << " : "; 1403 D->getType().print(Out, Policy); 1404 Out << " : "; 1405 D->getCombiner()->printPretty(Out, nullptr, Policy, 0); 1406 Out << ")"; 1407 if (auto *Init = D->getInitializer()) { 1408 Out << " initializer("; 1409 Init->printPretty(Out, nullptr, Policy, 0); 1410 Out << ")"; 1411 } 1412 } 1413 } 1414 1415 void DeclPrinter::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) { 1416 D->getInit()->printPretty(Out, nullptr, Policy, Indentation); 1417 } 1418 1419