1 //===--- ASTWriterDecl.cpp - Declaration Serialization --------------------===// 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 serialization for Declarations. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "ASTCommon.h" 15 #include "clang/AST/DeclCXX.h" 16 #include "clang/AST/DeclContextInternals.h" 17 #include "clang/AST/DeclTemplate.h" 18 #include "clang/AST/DeclVisitor.h" 19 #include "clang/AST/Expr.h" 20 #include "clang/Basic/SourceManager.h" 21 #include "clang/Serialization/ASTReader.h" 22 #include "clang/Serialization/ASTWriter.h" 23 #include "llvm/Bitcode/BitstreamWriter.h" 24 #include "llvm/Support/ErrorHandling.h" 25 using namespace clang; 26 using namespace serialization; 27 28 //===----------------------------------------------------------------------===// 29 // Declaration serialization 30 //===----------------------------------------------------------------------===// 31 32 namespace clang { 33 class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> { 34 ASTWriter &Writer; 35 ASTContext &Context; 36 ASTRecordWriter Record; 37 38 serialization::DeclCode Code; 39 unsigned AbbrevToUse; 40 41 public: 42 ASTDeclWriter(ASTWriter &Writer, ASTContext &Context, 43 ASTWriter::RecordDataImpl &Record) 44 : Writer(Writer), Context(Context), Record(Writer, Record), 45 Code((serialization::DeclCode)0), AbbrevToUse(0) {} 46 47 uint64_t Emit(Decl *D) { 48 if (!Code) 49 llvm::report_fatal_error(StringRef("unexpected declaration kind '") + 50 D->getDeclKindName() + "'"); 51 return Record.Emit(Code, AbbrevToUse); 52 } 53 54 void Visit(Decl *D); 55 56 void VisitDecl(Decl *D); 57 void VisitPragmaCommentDecl(PragmaCommentDecl *D); 58 void VisitPragmaDetectMismatchDecl(PragmaDetectMismatchDecl *D); 59 void VisitTranslationUnitDecl(TranslationUnitDecl *D); 60 void VisitNamedDecl(NamedDecl *D); 61 void VisitLabelDecl(LabelDecl *LD); 62 void VisitNamespaceDecl(NamespaceDecl *D); 63 void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); 64 void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); 65 void VisitTypeDecl(TypeDecl *D); 66 void VisitTypedefNameDecl(TypedefNameDecl *D); 67 void VisitTypedefDecl(TypedefDecl *D); 68 void VisitTypeAliasDecl(TypeAliasDecl *D); 69 void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); 70 void VisitTagDecl(TagDecl *D); 71 void VisitEnumDecl(EnumDecl *D); 72 void VisitRecordDecl(RecordDecl *D); 73 void VisitCXXRecordDecl(CXXRecordDecl *D); 74 void VisitClassTemplateSpecializationDecl( 75 ClassTemplateSpecializationDecl *D); 76 void VisitClassTemplatePartialSpecializationDecl( 77 ClassTemplatePartialSpecializationDecl *D); 78 void VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D); 79 void VisitVarTemplatePartialSpecializationDecl( 80 VarTemplatePartialSpecializationDecl *D); 81 void VisitClassScopeFunctionSpecializationDecl( 82 ClassScopeFunctionSpecializationDecl *D); 83 void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D); 84 void VisitValueDecl(ValueDecl *D); 85 void VisitEnumConstantDecl(EnumConstantDecl *D); 86 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); 87 void VisitDeclaratorDecl(DeclaratorDecl *D); 88 void VisitFunctionDecl(FunctionDecl *D); 89 void VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D); 90 void VisitCXXMethodDecl(CXXMethodDecl *D); 91 void VisitCXXConstructorDecl(CXXConstructorDecl *D); 92 void VisitCXXDestructorDecl(CXXDestructorDecl *D); 93 void VisitCXXConversionDecl(CXXConversionDecl *D); 94 void VisitFieldDecl(FieldDecl *D); 95 void VisitMSPropertyDecl(MSPropertyDecl *D); 96 void VisitIndirectFieldDecl(IndirectFieldDecl *D); 97 void VisitVarDecl(VarDecl *D); 98 void VisitImplicitParamDecl(ImplicitParamDecl *D); 99 void VisitParmVarDecl(ParmVarDecl *D); 100 void VisitDecompositionDecl(DecompositionDecl *D); 101 void VisitBindingDecl(BindingDecl *D); 102 void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D); 103 void VisitTemplateDecl(TemplateDecl *D); 104 void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D); 105 void VisitClassTemplateDecl(ClassTemplateDecl *D); 106 void VisitVarTemplateDecl(VarTemplateDecl *D); 107 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D); 108 void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D); 109 void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D); 110 void VisitUsingDecl(UsingDecl *D); 111 void VisitUsingPackDecl(UsingPackDecl *D); 112 void VisitUsingShadowDecl(UsingShadowDecl *D); 113 void VisitConstructorUsingShadowDecl(ConstructorUsingShadowDecl *D); 114 void VisitLinkageSpecDecl(LinkageSpecDecl *D); 115 void VisitExportDecl(ExportDecl *D); 116 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D); 117 void VisitImportDecl(ImportDecl *D); 118 void VisitAccessSpecDecl(AccessSpecDecl *D); 119 void VisitFriendDecl(FriendDecl *D); 120 void VisitFriendTemplateDecl(FriendTemplateDecl *D); 121 void VisitStaticAssertDecl(StaticAssertDecl *D); 122 void VisitBlockDecl(BlockDecl *D); 123 void VisitCapturedDecl(CapturedDecl *D); 124 void VisitEmptyDecl(EmptyDecl *D); 125 126 void VisitDeclContext(DeclContext *DC); 127 template <typename T> void VisitRedeclarable(Redeclarable<T> *D); 128 129 130 // FIXME: Put in the same order is DeclNodes.td? 131 void VisitObjCMethodDecl(ObjCMethodDecl *D); 132 void VisitObjCTypeParamDecl(ObjCTypeParamDecl *D); 133 void VisitObjCContainerDecl(ObjCContainerDecl *D); 134 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); 135 void VisitObjCIvarDecl(ObjCIvarDecl *D); 136 void VisitObjCProtocolDecl(ObjCProtocolDecl *D); 137 void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D); 138 void VisitObjCCategoryDecl(ObjCCategoryDecl *D); 139 void VisitObjCImplDecl(ObjCImplDecl *D); 140 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); 141 void VisitObjCImplementationDecl(ObjCImplementationDecl *D); 142 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D); 143 void VisitObjCPropertyDecl(ObjCPropertyDecl *D); 144 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); 145 void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D); 146 void VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D); 147 void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D); 148 149 /// Add an Objective-C type parameter list to the given record. 150 void AddObjCTypeParamList(ObjCTypeParamList *typeParams) { 151 // Empty type parameter list. 152 if (!typeParams) { 153 Record.push_back(0); 154 return; 155 } 156 157 Record.push_back(typeParams->size()); 158 for (auto typeParam : *typeParams) { 159 Record.AddDeclRef(typeParam); 160 } 161 Record.AddSourceLocation(typeParams->getLAngleLoc()); 162 Record.AddSourceLocation(typeParams->getRAngleLoc()); 163 } 164 165 /// Add to the record the first declaration from each module file that 166 /// provides a declaration of D. The intent is to provide a sufficient 167 /// set such that reloading this set will load all current redeclarations. 168 void AddFirstDeclFromEachModule(const Decl *D, bool IncludeLocal) { 169 llvm::MapVector<ModuleFile*, const Decl*> Firsts; 170 // FIXME: We can skip entries that we know are implied by others. 171 for (const Decl *R = D->getMostRecentDecl(); R; R = R->getPreviousDecl()) { 172 if (R->isFromASTFile()) 173 Firsts[Writer.Chain->getOwningModuleFile(R)] = R; 174 else if (IncludeLocal) 175 Firsts[nullptr] = R; 176 } 177 for (const auto &F : Firsts) 178 Record.AddDeclRef(F.second); 179 } 180 181 /// Get the specialization decl from an entry in the specialization list. 182 template <typename EntryType> 183 typename RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::DeclType * 184 getSpecializationDecl(EntryType &T) { 185 return RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::getDecl(&T); 186 } 187 188 /// Get the list of partial specializations from a template's common ptr. 189 template<typename T> 190 decltype(T::PartialSpecializations) &getPartialSpecializations(T *Common) { 191 return Common->PartialSpecializations; 192 } 193 ArrayRef<Decl> getPartialSpecializations(FunctionTemplateDecl::Common *) { 194 return None; 195 } 196 197 template<typename DeclTy> 198 void AddTemplateSpecializations(DeclTy *D) { 199 auto *Common = D->getCommonPtr(); 200 201 // If we have any lazy specializations, and the external AST source is 202 // our chained AST reader, we can just write out the DeclIDs. Otherwise, 203 // we need to resolve them to actual declarations. 204 if (Writer.Chain != Writer.Context->getExternalSource() && 205 Common->LazySpecializations) { 206 D->LoadLazySpecializations(); 207 assert(!Common->LazySpecializations); 208 } 209 210 ArrayRef<DeclID> LazySpecializations; 211 if (auto *LS = Common->LazySpecializations) 212 LazySpecializations = llvm::makeArrayRef(LS + 1, LS[0]); 213 214 // Add a slot to the record for the number of specializations. 215 unsigned I = Record.size(); 216 Record.push_back(0); 217 218 // AddFirstDeclFromEachModule might trigger deserialization, invalidating 219 // *Specializations iterators. 220 llvm::SmallVector<const Decl*, 16> Specs; 221 for (auto &Entry : Common->Specializations) 222 Specs.push_back(getSpecializationDecl(Entry)); 223 for (auto &Entry : getPartialSpecializations(Common)) 224 Specs.push_back(getSpecializationDecl(Entry)); 225 226 for (auto *D : Specs) { 227 assert(D->isCanonicalDecl() && "non-canonical decl in set"); 228 AddFirstDeclFromEachModule(D, /*IncludeLocal*/true); 229 } 230 Record.append(LazySpecializations.begin(), LazySpecializations.end()); 231 232 // Update the size entry we added earlier. 233 Record[I] = Record.size() - I - 1; 234 } 235 236 /// Ensure that this template specialization is associated with the specified 237 /// template on reload. 238 void RegisterTemplateSpecialization(const Decl *Template, 239 const Decl *Specialization) { 240 Template = Template->getCanonicalDecl(); 241 242 // If the canonical template is local, we'll write out this specialization 243 // when we emit it. 244 // FIXME: We can do the same thing if there is any local declaration of 245 // the template, to avoid emitting an update record. 246 if (!Template->isFromASTFile()) 247 return; 248 249 // We only need to associate the first local declaration of the 250 // specialization. The other declarations will get pulled in by it. 251 if (Writer.getFirstLocalDecl(Specialization) != Specialization) 252 return; 253 254 Writer.DeclUpdates[Template].push_back(ASTWriter::DeclUpdate( 255 UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION, Specialization)); 256 } 257 }; 258 } 259 260 void ASTDeclWriter::Visit(Decl *D) { 261 DeclVisitor<ASTDeclWriter>::Visit(D); 262 263 // Source locations require array (variable-length) abbreviations. The 264 // abbreviation infrastructure requires that arrays are encoded last, so 265 // we handle it here in the case of those classes derived from DeclaratorDecl 266 if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)) { 267 Record.AddTypeSourceInfo(DD->getTypeSourceInfo()); 268 } 269 270 // Handle FunctionDecl's body here and write it after all other Stmts/Exprs 271 // have been written. We want it last because we will not read it back when 272 // retrieving it from the AST, we'll just lazily set the offset. 273 if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 274 Record.push_back(FD->doesThisDeclarationHaveABody()); 275 if (FD->doesThisDeclarationHaveABody()) 276 Record.AddFunctionDefinition(FD); 277 } 278 279 // If this declaration is also a DeclContext, write blocks for the 280 // declarations that lexically stored inside its context and those 281 // declarations that are visible from its context. 282 if (DeclContext *DC = dyn_cast<DeclContext>(D)) 283 VisitDeclContext(DC); 284 } 285 286 void ASTDeclWriter::VisitDecl(Decl *D) { 287 Record.AddDeclRef(cast_or_null<Decl>(D->getDeclContext())); 288 if (D->getDeclContext() != D->getLexicalDeclContext()) 289 Record.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext())); 290 else 291 Record.push_back(0); 292 Record.push_back(D->isInvalidDecl()); 293 Record.push_back(D->hasAttrs()); 294 if (D->hasAttrs()) 295 Record.AddAttributes(D->getAttrs()); 296 Record.push_back(D->isImplicit()); 297 Record.push_back(D->isUsed(false)); 298 Record.push_back(D->isReferenced()); 299 Record.push_back(D->isTopLevelDeclInObjCContainer()); 300 Record.push_back(D->getAccess()); 301 Record.push_back(D->isModulePrivate()); 302 Record.push_back(Writer.inferSubmoduleIDFromLocation(D->getLocation())); 303 304 // If this declaration injected a name into a context different from its 305 // lexical context, and that context is an imported namespace, we need to 306 // update its visible declarations to include this name. 307 // 308 // This happens when we instantiate a class with a friend declaration or a 309 // function with a local extern declaration, for instance. 310 // 311 // FIXME: Can we handle this in AddedVisibleDecl instead? 312 if (D->isOutOfLine()) { 313 auto *DC = D->getDeclContext(); 314 while (auto *NS = dyn_cast<NamespaceDecl>(DC->getRedeclContext())) { 315 if (!NS->isFromASTFile()) 316 break; 317 Writer.UpdatedDeclContexts.insert(NS->getPrimaryContext()); 318 if (!NS->isInlineNamespace()) 319 break; 320 DC = NS->getParent(); 321 } 322 } 323 } 324 325 void ASTDeclWriter::VisitPragmaCommentDecl(PragmaCommentDecl *D) { 326 StringRef Arg = D->getArg(); 327 Record.push_back(Arg.size()); 328 VisitDecl(D); 329 Record.AddSourceLocation(D->getLocStart()); 330 Record.push_back(D->getCommentKind()); 331 Record.AddString(Arg); 332 Code = serialization::DECL_PRAGMA_COMMENT; 333 } 334 335 void ASTDeclWriter::VisitPragmaDetectMismatchDecl( 336 PragmaDetectMismatchDecl *D) { 337 StringRef Name = D->getName(); 338 StringRef Value = D->getValue(); 339 Record.push_back(Name.size() + 1 + Value.size()); 340 VisitDecl(D); 341 Record.AddSourceLocation(D->getLocStart()); 342 Record.AddString(Name); 343 Record.AddString(Value); 344 Code = serialization::DECL_PRAGMA_DETECT_MISMATCH; 345 } 346 347 void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 348 llvm_unreachable("Translation units aren't directly serialized"); 349 } 350 351 void ASTDeclWriter::VisitNamedDecl(NamedDecl *D) { 352 VisitDecl(D); 353 Record.AddDeclarationName(D->getDeclName()); 354 Record.push_back(needsAnonymousDeclarationNumber(D) 355 ? Writer.getAnonymousDeclarationNumber(D) 356 : 0); 357 } 358 359 void ASTDeclWriter::VisitTypeDecl(TypeDecl *D) { 360 VisitNamedDecl(D); 361 Record.AddSourceLocation(D->getLocStart()); 362 Record.AddTypeRef(QualType(D->getTypeForDecl(), 0)); 363 } 364 365 void ASTDeclWriter::VisitTypedefNameDecl(TypedefNameDecl *D) { 366 VisitRedeclarable(D); 367 VisitTypeDecl(D); 368 Record.AddTypeSourceInfo(D->getTypeSourceInfo()); 369 Record.push_back(D->isModed()); 370 if (D->isModed()) 371 Record.AddTypeRef(D->getUnderlyingType()); 372 Record.AddDeclRef(D->getAnonDeclWithTypedefName(false)); 373 } 374 375 void ASTDeclWriter::VisitTypedefDecl(TypedefDecl *D) { 376 VisitTypedefNameDecl(D); 377 if (D->getDeclContext() == D->getLexicalDeclContext() && 378 !D->hasAttrs() && 379 !D->isImplicit() && 380 D->getFirstDecl() == D->getMostRecentDecl() && 381 !D->isInvalidDecl() && 382 !D->isTopLevelDeclInObjCContainer() && 383 !D->isModulePrivate() && 384 !needsAnonymousDeclarationNumber(D) && 385 D->getDeclName().getNameKind() == DeclarationName::Identifier) 386 AbbrevToUse = Writer.getDeclTypedefAbbrev(); 387 388 Code = serialization::DECL_TYPEDEF; 389 } 390 391 void ASTDeclWriter::VisitTypeAliasDecl(TypeAliasDecl *D) { 392 VisitTypedefNameDecl(D); 393 Record.AddDeclRef(D->getDescribedAliasTemplate()); 394 Code = serialization::DECL_TYPEALIAS; 395 } 396 397 void ASTDeclWriter::VisitTagDecl(TagDecl *D) { 398 VisitRedeclarable(D); 399 VisitTypeDecl(D); 400 Record.push_back(D->getIdentifierNamespace()); 401 Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding 402 if (!isa<CXXRecordDecl>(D)) 403 Record.push_back(D->isCompleteDefinition()); 404 Record.push_back(D->isEmbeddedInDeclarator()); 405 Record.push_back(D->isFreeStanding()); 406 Record.push_back(D->isCompleteDefinitionRequired()); 407 Record.AddSourceRange(D->getBraceRange()); 408 409 if (D->hasExtInfo()) { 410 Record.push_back(1); 411 Record.AddQualifierInfo(*D->getExtInfo()); 412 } else if (auto *TD = D->getTypedefNameForAnonDecl()) { 413 Record.push_back(2); 414 Record.AddDeclRef(TD); 415 Record.AddIdentifierRef(TD->getDeclName().getAsIdentifierInfo()); 416 } else { 417 Record.push_back(0); 418 } 419 } 420 421 void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) { 422 VisitTagDecl(D); 423 Record.AddTypeSourceInfo(D->getIntegerTypeSourceInfo()); 424 if (!D->getIntegerTypeSourceInfo()) 425 Record.AddTypeRef(D->getIntegerType()); 426 Record.AddTypeRef(D->getPromotionType()); 427 Record.push_back(D->getNumPositiveBits()); 428 Record.push_back(D->getNumNegativeBits()); 429 Record.push_back(D->isScoped()); 430 Record.push_back(D->isScopedUsingClassTag()); 431 Record.push_back(D->isFixed()); 432 if (MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo()) { 433 Record.AddDeclRef(MemberInfo->getInstantiatedFrom()); 434 Record.push_back(MemberInfo->getTemplateSpecializationKind()); 435 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation()); 436 } else { 437 Record.AddDeclRef(nullptr); 438 } 439 440 if (D->getDeclContext() == D->getLexicalDeclContext() && 441 !D->hasAttrs() && 442 !D->isImplicit() && 443 !D->isUsed(false) && 444 !D->hasExtInfo() && 445 !D->getTypedefNameForAnonDecl() && 446 D->getFirstDecl() == D->getMostRecentDecl() && 447 !D->isInvalidDecl() && 448 !D->isReferenced() && 449 !D->isTopLevelDeclInObjCContainer() && 450 D->getAccess() == AS_none && 451 !D->isModulePrivate() && 452 !CXXRecordDecl::classofKind(D->getKind()) && 453 !D->getIntegerTypeSourceInfo() && 454 !D->getMemberSpecializationInfo() && 455 !needsAnonymousDeclarationNumber(D) && 456 D->getDeclName().getNameKind() == DeclarationName::Identifier) 457 AbbrevToUse = Writer.getDeclEnumAbbrev(); 458 459 Code = serialization::DECL_ENUM; 460 } 461 462 void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) { 463 VisitTagDecl(D); 464 Record.push_back(D->hasFlexibleArrayMember()); 465 Record.push_back(D->isAnonymousStructOrUnion()); 466 Record.push_back(D->hasObjectMember()); 467 Record.push_back(D->hasVolatileMember()); 468 469 if (D->getDeclContext() == D->getLexicalDeclContext() && 470 !D->hasAttrs() && 471 !D->isImplicit() && 472 !D->isUsed(false) && 473 !D->hasExtInfo() && 474 !D->getTypedefNameForAnonDecl() && 475 D->getFirstDecl() == D->getMostRecentDecl() && 476 !D->isInvalidDecl() && 477 !D->isReferenced() && 478 !D->isTopLevelDeclInObjCContainer() && 479 D->getAccess() == AS_none && 480 !D->isModulePrivate() && 481 !CXXRecordDecl::classofKind(D->getKind()) && 482 !needsAnonymousDeclarationNumber(D) && 483 D->getDeclName().getNameKind() == DeclarationName::Identifier) 484 AbbrevToUse = Writer.getDeclRecordAbbrev(); 485 486 Code = serialization::DECL_RECORD; 487 } 488 489 void ASTDeclWriter::VisitValueDecl(ValueDecl *D) { 490 VisitNamedDecl(D); 491 Record.AddTypeRef(D->getType()); 492 } 493 494 void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) { 495 VisitValueDecl(D); 496 Record.push_back(D->getInitExpr()? 1 : 0); 497 if (D->getInitExpr()) 498 Record.AddStmt(D->getInitExpr()); 499 Record.AddAPSInt(D->getInitVal()); 500 501 Code = serialization::DECL_ENUM_CONSTANT; 502 } 503 504 void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) { 505 VisitValueDecl(D); 506 Record.AddSourceLocation(D->getInnerLocStart()); 507 Record.push_back(D->hasExtInfo()); 508 if (D->hasExtInfo()) 509 Record.AddQualifierInfo(*D->getExtInfo()); 510 } 511 512 void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) { 513 VisitRedeclarable(D); 514 VisitDeclaratorDecl(D); 515 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName()); 516 Record.push_back(D->getIdentifierNamespace()); 517 518 // FunctionDecl's body is handled last at ASTWriterDecl::Visit, 519 // after everything else is written. 520 521 Record.push_back((int)D->SClass); // FIXME: stable encoding 522 Record.push_back(D->IsInline); 523 Record.push_back(D->IsInlineSpecified); 524 Record.push_back(D->IsExplicitSpecified); 525 Record.push_back(D->IsVirtualAsWritten); 526 Record.push_back(D->IsPure); 527 Record.push_back(D->HasInheritedPrototype); 528 Record.push_back(D->HasWrittenPrototype); 529 Record.push_back(D->IsDeleted); 530 Record.push_back(D->IsTrivial); 531 Record.push_back(D->IsDefaulted); 532 Record.push_back(D->IsExplicitlyDefaulted); 533 Record.push_back(D->HasImplicitReturnZero); 534 Record.push_back(D->IsConstexpr); 535 Record.push_back(D->UsesSEHTry); 536 Record.push_back(D->HasSkippedBody); 537 Record.push_back(D->IsLateTemplateParsed); 538 Record.push_back(D->getLinkageInternal()); 539 Record.AddSourceLocation(D->getLocEnd()); 540 541 Record.push_back(D->getTemplatedKind()); 542 switch (D->getTemplatedKind()) { 543 case FunctionDecl::TK_NonTemplate: 544 break; 545 case FunctionDecl::TK_FunctionTemplate: 546 Record.AddDeclRef(D->getDescribedFunctionTemplate()); 547 break; 548 case FunctionDecl::TK_MemberSpecialization: { 549 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo(); 550 Record.AddDeclRef(MemberInfo->getInstantiatedFrom()); 551 Record.push_back(MemberInfo->getTemplateSpecializationKind()); 552 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation()); 553 break; 554 } 555 case FunctionDecl::TK_FunctionTemplateSpecialization: { 556 FunctionTemplateSpecializationInfo * 557 FTSInfo = D->getTemplateSpecializationInfo(); 558 559 RegisterTemplateSpecialization(FTSInfo->getTemplate(), D); 560 561 Record.AddDeclRef(FTSInfo->getTemplate()); 562 Record.push_back(FTSInfo->getTemplateSpecializationKind()); 563 564 // Template arguments. 565 Record.AddTemplateArgumentList(FTSInfo->TemplateArguments); 566 567 // Template args as written. 568 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != nullptr); 569 if (FTSInfo->TemplateArgumentsAsWritten) { 570 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs); 571 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs; 572 i!=e; ++i) 573 Record.AddTemplateArgumentLoc( 574 (*FTSInfo->TemplateArgumentsAsWritten)[i]); 575 Record.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc); 576 Record.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc); 577 } 578 579 Record.AddSourceLocation(FTSInfo->getPointOfInstantiation()); 580 581 if (D->isCanonicalDecl()) { 582 // Write the template that contains the specializations set. We will 583 // add a FunctionTemplateSpecializationInfo to it when reading. 584 Record.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl()); 585 } 586 break; 587 } 588 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: { 589 DependentFunctionTemplateSpecializationInfo * 590 DFTSInfo = D->getDependentSpecializationInfo(); 591 592 // Templates. 593 Record.push_back(DFTSInfo->getNumTemplates()); 594 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i) 595 Record.AddDeclRef(DFTSInfo->getTemplate(i)); 596 597 // Templates args. 598 Record.push_back(DFTSInfo->getNumTemplateArgs()); 599 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i) 600 Record.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i)); 601 Record.AddSourceLocation(DFTSInfo->getLAngleLoc()); 602 Record.AddSourceLocation(DFTSInfo->getRAngleLoc()); 603 break; 604 } 605 } 606 607 Record.push_back(D->param_size()); 608 for (auto P : D->parameters()) 609 Record.AddDeclRef(P); 610 Code = serialization::DECL_FUNCTION; 611 } 612 613 void ASTDeclWriter::VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D) { 614 VisitFunctionDecl(D); 615 Code = serialization::DECL_CXX_DEDUCTION_GUIDE; 616 } 617 618 void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) { 619 VisitNamedDecl(D); 620 // FIXME: convert to LazyStmtPtr? 621 // Unlike C/C++, method bodies will never be in header files. 622 bool HasBodyStuff = D->getBody() != nullptr || 623 D->getSelfDecl() != nullptr || D->getCmdDecl() != nullptr; 624 Record.push_back(HasBodyStuff); 625 if (HasBodyStuff) { 626 Record.AddStmt(D->getBody()); 627 Record.AddDeclRef(D->getSelfDecl()); 628 Record.AddDeclRef(D->getCmdDecl()); 629 } 630 Record.push_back(D->isInstanceMethod()); 631 Record.push_back(D->isVariadic()); 632 Record.push_back(D->isPropertyAccessor()); 633 Record.push_back(D->isDefined()); 634 Record.push_back(D->IsOverriding); 635 Record.push_back(D->HasSkippedBody); 636 637 Record.push_back(D->IsRedeclaration); 638 Record.push_back(D->HasRedeclaration); 639 if (D->HasRedeclaration) { 640 assert(Context.getObjCMethodRedeclaration(D)); 641 Record.AddDeclRef(Context.getObjCMethodRedeclaration(D)); 642 } 643 644 // FIXME: stable encoding for @required/@optional 645 Record.push_back(D->getImplementationControl()); 646 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway/nullability 647 Record.push_back(D->getObjCDeclQualifier()); 648 Record.push_back(D->hasRelatedResultType()); 649 Record.AddTypeRef(D->getReturnType()); 650 Record.AddTypeSourceInfo(D->getReturnTypeSourceInfo()); 651 Record.AddSourceLocation(D->getLocEnd()); 652 Record.push_back(D->param_size()); 653 for (const auto *P : D->parameters()) 654 Record.AddDeclRef(P); 655 656 Record.push_back(D->SelLocsKind); 657 unsigned NumStoredSelLocs = D->getNumStoredSelLocs(); 658 SourceLocation *SelLocs = D->getStoredSelLocs(); 659 Record.push_back(NumStoredSelLocs); 660 for (unsigned i = 0; i != NumStoredSelLocs; ++i) 661 Record.AddSourceLocation(SelLocs[i]); 662 663 Code = serialization::DECL_OBJC_METHOD; 664 } 665 666 void ASTDeclWriter::VisitObjCTypeParamDecl(ObjCTypeParamDecl *D) { 667 VisitTypedefNameDecl(D); 668 Record.push_back(D->Variance); 669 Record.push_back(D->Index); 670 Record.AddSourceLocation(D->VarianceLoc); 671 Record.AddSourceLocation(D->ColonLoc); 672 673 Code = serialization::DECL_OBJC_TYPE_PARAM; 674 } 675 676 void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) { 677 VisitNamedDecl(D); 678 Record.AddSourceLocation(D->getAtStartLoc()); 679 Record.AddSourceRange(D->getAtEndRange()); 680 // Abstract class (no need to define a stable serialization::DECL code). 681 } 682 683 void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) { 684 VisitRedeclarable(D); 685 VisitObjCContainerDecl(D); 686 Record.AddTypeRef(QualType(D->getTypeForDecl(), 0)); 687 AddObjCTypeParamList(D->TypeParamList); 688 689 Record.push_back(D->isThisDeclarationADefinition()); 690 if (D->isThisDeclarationADefinition()) { 691 // Write the DefinitionData 692 ObjCInterfaceDecl::DefinitionData &Data = D->data(); 693 694 Record.AddTypeSourceInfo(D->getSuperClassTInfo()); 695 Record.AddSourceLocation(D->getEndOfDefinitionLoc()); 696 Record.push_back(Data.HasDesignatedInitializers); 697 698 // Write out the protocols that are directly referenced by the @interface. 699 Record.push_back(Data.ReferencedProtocols.size()); 700 for (const auto *P : D->protocols()) 701 Record.AddDeclRef(P); 702 for (const auto &PL : D->protocol_locs()) 703 Record.AddSourceLocation(PL); 704 705 // Write out the protocols that are transitively referenced. 706 Record.push_back(Data.AllReferencedProtocols.size()); 707 for (ObjCList<ObjCProtocolDecl>::iterator 708 P = Data.AllReferencedProtocols.begin(), 709 PEnd = Data.AllReferencedProtocols.end(); 710 P != PEnd; ++P) 711 Record.AddDeclRef(*P); 712 713 714 if (ObjCCategoryDecl *Cat = D->getCategoryListRaw()) { 715 // Ensure that we write out the set of categories for this class. 716 Writer.ObjCClassesWithCategories.insert(D); 717 718 // Make sure that the categories get serialized. 719 for (; Cat; Cat = Cat->getNextClassCategoryRaw()) 720 (void)Writer.GetDeclRef(Cat); 721 } 722 } 723 724 Code = serialization::DECL_OBJC_INTERFACE; 725 } 726 727 void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) { 728 VisitFieldDecl(D); 729 // FIXME: stable encoding for @public/@private/@protected/@package 730 Record.push_back(D->getAccessControl()); 731 Record.push_back(D->getSynthesize()); 732 733 if (D->getDeclContext() == D->getLexicalDeclContext() && 734 !D->hasAttrs() && 735 !D->isImplicit() && 736 !D->isUsed(false) && 737 !D->isInvalidDecl() && 738 !D->isReferenced() && 739 !D->isModulePrivate() && 740 !D->getBitWidth() && 741 !D->hasExtInfo() && 742 D->getDeclName()) 743 AbbrevToUse = Writer.getDeclObjCIvarAbbrev(); 744 745 Code = serialization::DECL_OBJC_IVAR; 746 } 747 748 void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) { 749 VisitRedeclarable(D); 750 VisitObjCContainerDecl(D); 751 752 Record.push_back(D->isThisDeclarationADefinition()); 753 if (D->isThisDeclarationADefinition()) { 754 Record.push_back(D->protocol_size()); 755 for (const auto *I : D->protocols()) 756 Record.AddDeclRef(I); 757 for (const auto &PL : D->protocol_locs()) 758 Record.AddSourceLocation(PL); 759 } 760 761 Code = serialization::DECL_OBJC_PROTOCOL; 762 } 763 764 void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) { 765 VisitFieldDecl(D); 766 Code = serialization::DECL_OBJC_AT_DEFS_FIELD; 767 } 768 769 void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) { 770 VisitObjCContainerDecl(D); 771 Record.AddSourceLocation(D->getCategoryNameLoc()); 772 Record.AddSourceLocation(D->getIvarLBraceLoc()); 773 Record.AddSourceLocation(D->getIvarRBraceLoc()); 774 Record.AddDeclRef(D->getClassInterface()); 775 AddObjCTypeParamList(D->TypeParamList); 776 Record.push_back(D->protocol_size()); 777 for (const auto *I : D->protocols()) 778 Record.AddDeclRef(I); 779 for (const auto &PL : D->protocol_locs()) 780 Record.AddSourceLocation(PL); 781 Code = serialization::DECL_OBJC_CATEGORY; 782 } 783 784 void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) { 785 VisitNamedDecl(D); 786 Record.AddDeclRef(D->getClassInterface()); 787 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS; 788 } 789 790 void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) { 791 VisitNamedDecl(D); 792 Record.AddSourceLocation(D->getAtLoc()); 793 Record.AddSourceLocation(D->getLParenLoc()); 794 Record.AddTypeRef(D->getType()); 795 Record.AddTypeSourceInfo(D->getTypeSourceInfo()); 796 // FIXME: stable encoding 797 Record.push_back((unsigned)D->getPropertyAttributes()); 798 Record.push_back((unsigned)D->getPropertyAttributesAsWritten()); 799 // FIXME: stable encoding 800 Record.push_back((unsigned)D->getPropertyImplementation()); 801 Record.AddDeclarationName(D->getGetterName()); 802 Record.AddDeclarationName(D->getSetterName()); 803 Record.AddDeclRef(D->getGetterMethodDecl()); 804 Record.AddDeclRef(D->getSetterMethodDecl()); 805 Record.AddDeclRef(D->getPropertyIvarDecl()); 806 Code = serialization::DECL_OBJC_PROPERTY; 807 } 808 809 void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) { 810 VisitObjCContainerDecl(D); 811 Record.AddDeclRef(D->getClassInterface()); 812 // Abstract class (no need to define a stable serialization::DECL code). 813 } 814 815 void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { 816 VisitObjCImplDecl(D); 817 Record.AddSourceLocation(D->getCategoryNameLoc()); 818 Code = serialization::DECL_OBJC_CATEGORY_IMPL; 819 } 820 821 void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { 822 VisitObjCImplDecl(D); 823 Record.AddDeclRef(D->getSuperClass()); 824 Record.AddSourceLocation(D->getSuperClassLoc()); 825 Record.AddSourceLocation(D->getIvarLBraceLoc()); 826 Record.AddSourceLocation(D->getIvarRBraceLoc()); 827 Record.push_back(D->hasNonZeroConstructors()); 828 Record.push_back(D->hasDestructors()); 829 Record.push_back(D->NumIvarInitializers); 830 if (D->NumIvarInitializers) 831 Record.AddCXXCtorInitializers( 832 llvm::makeArrayRef(D->init_begin(), D->init_end())); 833 Code = serialization::DECL_OBJC_IMPLEMENTATION; 834 } 835 836 void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) { 837 VisitDecl(D); 838 Record.AddSourceLocation(D->getLocStart()); 839 Record.AddDeclRef(D->getPropertyDecl()); 840 Record.AddDeclRef(D->getPropertyIvarDecl()); 841 Record.AddSourceLocation(D->getPropertyIvarDeclLoc()); 842 Record.AddStmt(D->getGetterCXXConstructor()); 843 Record.AddStmt(D->getSetterCXXAssignment()); 844 Code = serialization::DECL_OBJC_PROPERTY_IMPL; 845 } 846 847 void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) { 848 VisitDeclaratorDecl(D); 849 Record.push_back(D->isMutable()); 850 if (D->InitStorage.getInt() == FieldDecl::ISK_BitWidthOrNothing && 851 D->InitStorage.getPointer() == nullptr) { 852 Record.push_back(0); 853 } else if (D->InitStorage.getInt() == FieldDecl::ISK_CapturedVLAType) { 854 Record.push_back(D->InitStorage.getInt() + 1); 855 Record.AddTypeRef( 856 QualType(static_cast<Type *>(D->InitStorage.getPointer()), 0)); 857 } else { 858 Record.push_back(D->InitStorage.getInt() + 1); 859 Record.AddStmt(static_cast<Expr *>(D->InitStorage.getPointer())); 860 } 861 if (!D->getDeclName()) 862 Record.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D)); 863 864 if (D->getDeclContext() == D->getLexicalDeclContext() && 865 !D->hasAttrs() && 866 !D->isImplicit() && 867 !D->isUsed(false) && 868 !D->isInvalidDecl() && 869 !D->isReferenced() && 870 !D->isTopLevelDeclInObjCContainer() && 871 !D->isModulePrivate() && 872 !D->getBitWidth() && 873 !D->hasInClassInitializer() && 874 !D->hasExtInfo() && 875 !ObjCIvarDecl::classofKind(D->getKind()) && 876 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) && 877 D->getDeclName()) 878 AbbrevToUse = Writer.getDeclFieldAbbrev(); 879 880 Code = serialization::DECL_FIELD; 881 } 882 883 void ASTDeclWriter::VisitMSPropertyDecl(MSPropertyDecl *D) { 884 VisitDeclaratorDecl(D); 885 Record.AddIdentifierRef(D->getGetterId()); 886 Record.AddIdentifierRef(D->getSetterId()); 887 Code = serialization::DECL_MS_PROPERTY; 888 } 889 890 void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) { 891 VisitValueDecl(D); 892 Record.push_back(D->getChainingSize()); 893 894 for (const auto *P : D->chain()) 895 Record.AddDeclRef(P); 896 Code = serialization::DECL_INDIRECTFIELD; 897 } 898 899 void ASTDeclWriter::VisitVarDecl(VarDecl *D) { 900 VisitRedeclarable(D); 901 VisitDeclaratorDecl(D); 902 Record.push_back(D->getStorageClass()); 903 Record.push_back(D->getTSCSpec()); 904 Record.push_back(D->getInitStyle()); 905 if (!isa<ParmVarDecl>(D)) { 906 Record.push_back(D->isThisDeclarationADemotedDefinition()); 907 Record.push_back(D->isExceptionVariable()); 908 Record.push_back(D->isNRVOVariable()); 909 Record.push_back(D->isCXXForRangeDecl()); 910 Record.push_back(D->isARCPseudoStrong()); 911 Record.push_back(D->isInline()); 912 Record.push_back(D->isInlineSpecified()); 913 Record.push_back(D->isConstexpr()); 914 Record.push_back(D->isInitCapture()); 915 Record.push_back(D->isPreviousDeclInSameBlockScope()); 916 } 917 Record.push_back(D->getLinkageInternal()); 918 919 if (D->getInit()) { 920 Record.push_back(!D->isInitKnownICE() ? 1 : (D->isInitICE() ? 3 : 2)); 921 Record.AddStmt(D->getInit()); 922 } else { 923 Record.push_back(0); 924 } 925 926 enum { 927 VarNotTemplate = 0, VarTemplate, StaticDataMemberSpecialization 928 }; 929 if (VarTemplateDecl *TemplD = D->getDescribedVarTemplate()) { 930 Record.push_back(VarTemplate); 931 Record.AddDeclRef(TemplD); 932 } else if (MemberSpecializationInfo *SpecInfo 933 = D->getMemberSpecializationInfo()) { 934 Record.push_back(StaticDataMemberSpecialization); 935 Record.AddDeclRef(SpecInfo->getInstantiatedFrom()); 936 Record.push_back(SpecInfo->getTemplateSpecializationKind()); 937 Record.AddSourceLocation(SpecInfo->getPointOfInstantiation()); 938 } else { 939 Record.push_back(VarNotTemplate); 940 } 941 942 if (D->getDeclContext() == D->getLexicalDeclContext() && 943 !D->hasAttrs() && 944 !D->isImplicit() && 945 !D->isUsed(false) && 946 !D->isInvalidDecl() && 947 !D->isReferenced() && 948 !D->isTopLevelDeclInObjCContainer() && 949 D->getAccess() == AS_none && 950 !D->isModulePrivate() && 951 !needsAnonymousDeclarationNumber(D) && 952 D->getDeclName().getNameKind() == DeclarationName::Identifier && 953 !D->hasExtInfo() && 954 D->getFirstDecl() == D->getMostRecentDecl() && 955 D->getKind() == Decl::Var && 956 !D->isInline() && 957 !D->isConstexpr() && 958 !D->isInitCapture() && 959 !D->isPreviousDeclInSameBlockScope() && 960 !D->getMemberSpecializationInfo()) 961 AbbrevToUse = Writer.getDeclVarAbbrev(); 962 963 Code = serialization::DECL_VAR; 964 } 965 966 void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) { 967 VisitVarDecl(D); 968 Code = serialization::DECL_IMPLICIT_PARAM; 969 } 970 971 void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) { 972 VisitVarDecl(D); 973 Record.push_back(D->isObjCMethodParameter()); 974 Record.push_back(D->getFunctionScopeDepth()); 975 Record.push_back(D->getFunctionScopeIndex()); 976 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding 977 Record.push_back(D->isKNRPromoted()); 978 Record.push_back(D->hasInheritedDefaultArg()); 979 Record.push_back(D->hasUninstantiatedDefaultArg()); 980 if (D->hasUninstantiatedDefaultArg()) 981 Record.AddStmt(D->getUninstantiatedDefaultArg()); 982 Code = serialization::DECL_PARM_VAR; 983 984 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl 985 986 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here 987 // we dynamically check for the properties that we optimize for, but don't 988 // know are true of all PARM_VAR_DECLs. 989 if (D->getDeclContext() == D->getLexicalDeclContext() && 990 !D->hasAttrs() && 991 !D->hasExtInfo() && 992 !D->isImplicit() && 993 !D->isUsed(false) && 994 !D->isInvalidDecl() && 995 !D->isReferenced() && 996 D->getAccess() == AS_none && 997 !D->isModulePrivate() && 998 D->getStorageClass() == 0 && 999 D->getInitStyle() == VarDecl::CInit && // Can params have anything else? 1000 D->getFunctionScopeDepth() == 0 && 1001 D->getObjCDeclQualifier() == 0 && 1002 !D->isKNRPromoted() && 1003 !D->hasInheritedDefaultArg() && 1004 D->getInit() == nullptr && 1005 !D->hasUninstantiatedDefaultArg()) // No default expr. 1006 AbbrevToUse = Writer.getDeclParmVarAbbrev(); 1007 1008 // Check things we know are true of *every* PARM_VAR_DECL, which is more than 1009 // just us assuming it. 1010 assert(!D->getTSCSpec() && "PARM_VAR_DECL can't use TLS"); 1011 assert(!D->isThisDeclarationADemotedDefinition() 1012 && "PARM_VAR_DECL can't be demoted definition."); 1013 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private"); 1014 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var"); 1015 assert(D->getPreviousDecl() == nullptr && "PARM_VAR_DECL can't be redecl"); 1016 assert(!D->isStaticDataMember() && 1017 "PARM_VAR_DECL can't be static data member"); 1018 } 1019 1020 void ASTDeclWriter::VisitDecompositionDecl(DecompositionDecl *D) { 1021 // Record the number of bindings first to simplify deserialization. 1022 Record.push_back(D->bindings().size()); 1023 1024 VisitVarDecl(D); 1025 for (auto *B : D->bindings()) 1026 Record.AddDeclRef(B); 1027 Code = serialization::DECL_DECOMPOSITION; 1028 } 1029 1030 void ASTDeclWriter::VisitBindingDecl(BindingDecl *D) { 1031 VisitValueDecl(D); 1032 Record.AddStmt(D->getBinding()); 1033 Code = serialization::DECL_BINDING; 1034 } 1035 1036 void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { 1037 VisitDecl(D); 1038 Record.AddStmt(D->getAsmString()); 1039 Record.AddSourceLocation(D->getRParenLoc()); 1040 Code = serialization::DECL_FILE_SCOPE_ASM; 1041 } 1042 1043 void ASTDeclWriter::VisitEmptyDecl(EmptyDecl *D) { 1044 VisitDecl(D); 1045 Code = serialization::DECL_EMPTY; 1046 } 1047 1048 void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) { 1049 VisitDecl(D); 1050 Record.AddStmt(D->getBody()); 1051 Record.AddTypeSourceInfo(D->getSignatureAsWritten()); 1052 Record.push_back(D->param_size()); 1053 for (ParmVarDecl *P : D->parameters()) 1054 Record.AddDeclRef(P); 1055 Record.push_back(D->isVariadic()); 1056 Record.push_back(D->blockMissingReturnType()); 1057 Record.push_back(D->isConversionFromLambda()); 1058 Record.push_back(D->capturesCXXThis()); 1059 Record.push_back(D->getNumCaptures()); 1060 for (const auto &capture : D->captures()) { 1061 Record.AddDeclRef(capture.getVariable()); 1062 1063 unsigned flags = 0; 1064 if (capture.isByRef()) flags |= 1; 1065 if (capture.isNested()) flags |= 2; 1066 if (capture.hasCopyExpr()) flags |= 4; 1067 Record.push_back(flags); 1068 1069 if (capture.hasCopyExpr()) Record.AddStmt(capture.getCopyExpr()); 1070 } 1071 1072 Code = serialization::DECL_BLOCK; 1073 } 1074 1075 void ASTDeclWriter::VisitCapturedDecl(CapturedDecl *CD) { 1076 Record.push_back(CD->getNumParams()); 1077 VisitDecl(CD); 1078 Record.push_back(CD->getContextParamPosition()); 1079 Record.push_back(CD->isNothrow() ? 1 : 0); 1080 // Body is stored by VisitCapturedStmt. 1081 for (unsigned I = 0; I < CD->getNumParams(); ++I) 1082 Record.AddDeclRef(CD->getParam(I)); 1083 Code = serialization::DECL_CAPTURED; 1084 } 1085 1086 void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 1087 VisitDecl(D); 1088 Record.push_back(D->getLanguage()); 1089 Record.AddSourceLocation(D->getExternLoc()); 1090 Record.AddSourceLocation(D->getRBraceLoc()); 1091 Code = serialization::DECL_LINKAGE_SPEC; 1092 } 1093 1094 void ASTDeclWriter::VisitExportDecl(ExportDecl *D) { 1095 VisitDecl(D); 1096 Record.AddSourceLocation(D->getRBraceLoc()); 1097 Code = serialization::DECL_EXPORT; 1098 } 1099 1100 void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) { 1101 VisitNamedDecl(D); 1102 Record.AddSourceLocation(D->getLocStart()); 1103 Code = serialization::DECL_LABEL; 1104 } 1105 1106 1107 void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) { 1108 VisitRedeclarable(D); 1109 VisitNamedDecl(D); 1110 Record.push_back(D->isInline()); 1111 Record.AddSourceLocation(D->getLocStart()); 1112 Record.AddSourceLocation(D->getRBraceLoc()); 1113 1114 if (D->isOriginalNamespace()) 1115 Record.AddDeclRef(D->getAnonymousNamespace()); 1116 Code = serialization::DECL_NAMESPACE; 1117 1118 if (Writer.hasChain() && D->isAnonymousNamespace() && 1119 D == D->getMostRecentDecl()) { 1120 // This is a most recent reopening of the anonymous namespace. If its parent 1121 // is in a previous PCH (or is the TU), mark that parent for update, because 1122 // the original namespace always points to the latest re-opening of its 1123 // anonymous namespace. 1124 Decl *Parent = cast<Decl>( 1125 D->getParent()->getRedeclContext()->getPrimaryContext()); 1126 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) { 1127 Writer.DeclUpdates[Parent].push_back( 1128 ASTWriter::DeclUpdate(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE, D)); 1129 } 1130 } 1131 } 1132 1133 void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 1134 VisitRedeclarable(D); 1135 VisitNamedDecl(D); 1136 Record.AddSourceLocation(D->getNamespaceLoc()); 1137 Record.AddSourceLocation(D->getTargetNameLoc()); 1138 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc()); 1139 Record.AddDeclRef(D->getNamespace()); 1140 Code = serialization::DECL_NAMESPACE_ALIAS; 1141 } 1142 1143 void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) { 1144 VisitNamedDecl(D); 1145 Record.AddSourceLocation(D->getUsingLoc()); 1146 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc()); 1147 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName()); 1148 Record.AddDeclRef(D->FirstUsingShadow.getPointer()); 1149 Record.push_back(D->hasTypename()); 1150 Record.AddDeclRef(Context.getInstantiatedFromUsingDecl(D)); 1151 Code = serialization::DECL_USING; 1152 } 1153 1154 void ASTDeclWriter::VisitUsingPackDecl(UsingPackDecl *D) { 1155 Record.push_back(D->NumExpansions); 1156 VisitNamedDecl(D); 1157 Record.AddDeclRef(D->getInstantiatedFromUsingDecl()); 1158 for (auto *E : D->expansions()) 1159 Record.AddDeclRef(E); 1160 Code = serialization::DECL_USING_PACK; 1161 } 1162 1163 void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) { 1164 VisitRedeclarable(D); 1165 VisitNamedDecl(D); 1166 Record.AddDeclRef(D->getTargetDecl()); 1167 Record.AddDeclRef(D->UsingOrNextShadow); 1168 Record.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D)); 1169 Code = serialization::DECL_USING_SHADOW; 1170 } 1171 1172 void ASTDeclWriter::VisitConstructorUsingShadowDecl( 1173 ConstructorUsingShadowDecl *D) { 1174 VisitUsingShadowDecl(D); 1175 Record.AddDeclRef(D->NominatedBaseClassShadowDecl); 1176 Record.AddDeclRef(D->ConstructedBaseClassShadowDecl); 1177 Record.push_back(D->IsVirtual); 1178 Code = serialization::DECL_CONSTRUCTOR_USING_SHADOW; 1179 } 1180 1181 void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 1182 VisitNamedDecl(D); 1183 Record.AddSourceLocation(D->getUsingLoc()); 1184 Record.AddSourceLocation(D->getNamespaceKeyLocation()); 1185 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc()); 1186 Record.AddDeclRef(D->getNominatedNamespace()); 1187 Record.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor())); 1188 Code = serialization::DECL_USING_DIRECTIVE; 1189 } 1190 1191 void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 1192 VisitValueDecl(D); 1193 Record.AddSourceLocation(D->getUsingLoc()); 1194 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc()); 1195 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName()); 1196 Record.AddSourceLocation(D->getEllipsisLoc()); 1197 Code = serialization::DECL_UNRESOLVED_USING_VALUE; 1198 } 1199 1200 void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl( 1201 UnresolvedUsingTypenameDecl *D) { 1202 VisitTypeDecl(D); 1203 Record.AddSourceLocation(D->getTypenameLoc()); 1204 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc()); 1205 Record.AddSourceLocation(D->getEllipsisLoc()); 1206 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME; 1207 } 1208 1209 void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) { 1210 VisitRecordDecl(D); 1211 1212 enum { 1213 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization 1214 }; 1215 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) { 1216 Record.push_back(CXXRecTemplate); 1217 Record.AddDeclRef(TemplD); 1218 } else if (MemberSpecializationInfo *MSInfo 1219 = D->getMemberSpecializationInfo()) { 1220 Record.push_back(CXXRecMemberSpecialization); 1221 Record.AddDeclRef(MSInfo->getInstantiatedFrom()); 1222 Record.push_back(MSInfo->getTemplateSpecializationKind()); 1223 Record.AddSourceLocation(MSInfo->getPointOfInstantiation()); 1224 } else { 1225 Record.push_back(CXXRecNotTemplate); 1226 } 1227 1228 Record.push_back(D->isThisDeclarationADefinition()); 1229 if (D->isThisDeclarationADefinition()) 1230 Record.AddCXXDefinitionData(D); 1231 1232 // Store (what we currently believe to be) the key function to avoid 1233 // deserializing every method so we can compute it. 1234 if (D->IsCompleteDefinition) 1235 Record.AddDeclRef(Context.getCurrentKeyFunction(D)); 1236 1237 Code = serialization::DECL_CXX_RECORD; 1238 } 1239 1240 void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) { 1241 VisitFunctionDecl(D); 1242 if (D->isCanonicalDecl()) { 1243 Record.push_back(D->size_overridden_methods()); 1244 for (CXXMethodDecl::method_iterator 1245 I = D->begin_overridden_methods(), E = D->end_overridden_methods(); 1246 I != E; ++I) 1247 Record.AddDeclRef(*I); 1248 } else { 1249 // We only need to record overridden methods once for the canonical decl. 1250 Record.push_back(0); 1251 } 1252 1253 if (D->getDeclContext() == D->getLexicalDeclContext() && 1254 D->getFirstDecl() == D->getMostRecentDecl() && 1255 !D->isInvalidDecl() && 1256 !D->hasAttrs() && 1257 !D->isTopLevelDeclInObjCContainer() && 1258 D->getDeclName().getNameKind() == DeclarationName::Identifier && 1259 !D->hasExtInfo() && 1260 !D->hasInheritedPrototype() && 1261 D->hasWrittenPrototype()) 1262 AbbrevToUse = Writer.getDeclCXXMethodAbbrev(); 1263 1264 Code = serialization::DECL_CXX_METHOD; 1265 } 1266 1267 void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) { 1268 if (auto Inherited = D->getInheritedConstructor()) { 1269 Record.AddDeclRef(Inherited.getShadowDecl()); 1270 Record.AddDeclRef(Inherited.getConstructor()); 1271 Code = serialization::DECL_CXX_INHERITED_CONSTRUCTOR; 1272 } else { 1273 Code = serialization::DECL_CXX_CONSTRUCTOR; 1274 } 1275 1276 VisitCXXMethodDecl(D); 1277 1278 Code = D->isInheritingConstructor() 1279 ? serialization::DECL_CXX_INHERITED_CONSTRUCTOR 1280 : serialization::DECL_CXX_CONSTRUCTOR; 1281 } 1282 1283 void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) { 1284 VisitCXXMethodDecl(D); 1285 1286 Record.AddDeclRef(D->getOperatorDelete()); 1287 1288 Code = serialization::DECL_CXX_DESTRUCTOR; 1289 } 1290 1291 void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) { 1292 VisitCXXMethodDecl(D); 1293 Code = serialization::DECL_CXX_CONVERSION; 1294 } 1295 1296 void ASTDeclWriter::VisitImportDecl(ImportDecl *D) { 1297 VisitDecl(D); 1298 Record.push_back(Writer.getSubmoduleID(D->getImportedModule())); 1299 ArrayRef<SourceLocation> IdentifierLocs = D->getIdentifierLocs(); 1300 Record.push_back(!IdentifierLocs.empty()); 1301 if (IdentifierLocs.empty()) { 1302 Record.AddSourceLocation(D->getLocEnd()); 1303 Record.push_back(1); 1304 } else { 1305 for (unsigned I = 0, N = IdentifierLocs.size(); I != N; ++I) 1306 Record.AddSourceLocation(IdentifierLocs[I]); 1307 Record.push_back(IdentifierLocs.size()); 1308 } 1309 // Note: the number of source locations must always be the last element in 1310 // the record. 1311 Code = serialization::DECL_IMPORT; 1312 } 1313 1314 void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) { 1315 VisitDecl(D); 1316 Record.AddSourceLocation(D->getColonLoc()); 1317 Code = serialization::DECL_ACCESS_SPEC; 1318 } 1319 1320 void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) { 1321 // Record the number of friend type template parameter lists here 1322 // so as to simplify memory allocation during deserialization. 1323 Record.push_back(D->NumTPLists); 1324 VisitDecl(D); 1325 bool hasFriendDecl = D->Friend.is<NamedDecl*>(); 1326 Record.push_back(hasFriendDecl); 1327 if (hasFriendDecl) 1328 Record.AddDeclRef(D->getFriendDecl()); 1329 else 1330 Record.AddTypeSourceInfo(D->getFriendType()); 1331 for (unsigned i = 0; i < D->NumTPLists; ++i) 1332 Record.AddTemplateParameterList(D->getFriendTypeTemplateParameterList(i)); 1333 Record.AddDeclRef(D->getNextFriend()); 1334 Record.push_back(D->UnsupportedFriend); 1335 Record.AddSourceLocation(D->FriendLoc); 1336 Code = serialization::DECL_FRIEND; 1337 } 1338 1339 void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) { 1340 VisitDecl(D); 1341 Record.push_back(D->getNumTemplateParameters()); 1342 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i) 1343 Record.AddTemplateParameterList(D->getTemplateParameterList(i)); 1344 Record.push_back(D->getFriendDecl() != nullptr); 1345 if (D->getFriendDecl()) 1346 Record.AddDeclRef(D->getFriendDecl()); 1347 else 1348 Record.AddTypeSourceInfo(D->getFriendType()); 1349 Record.AddSourceLocation(D->getFriendLoc()); 1350 Code = serialization::DECL_FRIEND_TEMPLATE; 1351 } 1352 1353 void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) { 1354 VisitNamedDecl(D); 1355 1356 Record.AddDeclRef(D->getTemplatedDecl()); 1357 Record.AddTemplateParameterList(D->getTemplateParameters()); 1358 } 1359 1360 void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) { 1361 VisitRedeclarable(D); 1362 1363 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that 1364 // getCommonPtr() can be used while this is still initializing. 1365 if (D->isFirstDecl()) { 1366 // This declaration owns the 'common' pointer, so serialize that data now. 1367 Record.AddDeclRef(D->getInstantiatedFromMemberTemplate()); 1368 if (D->getInstantiatedFromMemberTemplate()) 1369 Record.push_back(D->isMemberSpecialization()); 1370 } 1371 1372 VisitTemplateDecl(D); 1373 Record.push_back(D->getIdentifierNamespace()); 1374 } 1375 1376 void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) { 1377 VisitRedeclarableTemplateDecl(D); 1378 1379 if (D->isFirstDecl()) 1380 AddTemplateSpecializations(D); 1381 Code = serialization::DECL_CLASS_TEMPLATE; 1382 } 1383 1384 void ASTDeclWriter::VisitClassTemplateSpecializationDecl( 1385 ClassTemplateSpecializationDecl *D) { 1386 RegisterTemplateSpecialization(D->getSpecializedTemplate(), D); 1387 1388 VisitCXXRecordDecl(D); 1389 1390 llvm::PointerUnion<ClassTemplateDecl *, 1391 ClassTemplatePartialSpecializationDecl *> InstFrom 1392 = D->getSpecializedTemplateOrPartial(); 1393 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) { 1394 Record.AddDeclRef(InstFromD); 1395 } else { 1396 Record.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>()); 1397 Record.AddTemplateArgumentList(&D->getTemplateInstantiationArgs()); 1398 } 1399 1400 Record.AddTemplateArgumentList(&D->getTemplateArgs()); 1401 Record.AddSourceLocation(D->getPointOfInstantiation()); 1402 Record.push_back(D->getSpecializationKind()); 1403 Record.push_back(D->isCanonicalDecl()); 1404 1405 if (D->isCanonicalDecl()) { 1406 // When reading, we'll add it to the folding set of the following template. 1407 Record.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl()); 1408 } 1409 1410 // Explicit info. 1411 Record.AddTypeSourceInfo(D->getTypeAsWritten()); 1412 if (D->getTypeAsWritten()) { 1413 Record.AddSourceLocation(D->getExternLoc()); 1414 Record.AddSourceLocation(D->getTemplateKeywordLoc()); 1415 } 1416 1417 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION; 1418 } 1419 1420 void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl( 1421 ClassTemplatePartialSpecializationDecl *D) { 1422 VisitClassTemplateSpecializationDecl(D); 1423 1424 Record.AddTemplateParameterList(D->getTemplateParameters()); 1425 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten()); 1426 1427 // These are read/set from/to the first declaration. 1428 if (D->getPreviousDecl() == nullptr) { 1429 Record.AddDeclRef(D->getInstantiatedFromMember()); 1430 Record.push_back(D->isMemberSpecialization()); 1431 } 1432 1433 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION; 1434 } 1435 1436 void ASTDeclWriter::VisitVarTemplateDecl(VarTemplateDecl *D) { 1437 VisitRedeclarableTemplateDecl(D); 1438 1439 if (D->isFirstDecl()) 1440 AddTemplateSpecializations(D); 1441 Code = serialization::DECL_VAR_TEMPLATE; 1442 } 1443 1444 void ASTDeclWriter::VisitVarTemplateSpecializationDecl( 1445 VarTemplateSpecializationDecl *D) { 1446 RegisterTemplateSpecialization(D->getSpecializedTemplate(), D); 1447 1448 VisitVarDecl(D); 1449 1450 llvm::PointerUnion<VarTemplateDecl *, VarTemplatePartialSpecializationDecl *> 1451 InstFrom = D->getSpecializedTemplateOrPartial(); 1452 if (Decl *InstFromD = InstFrom.dyn_cast<VarTemplateDecl *>()) { 1453 Record.AddDeclRef(InstFromD); 1454 } else { 1455 Record.AddDeclRef(InstFrom.get<VarTemplatePartialSpecializationDecl *>()); 1456 Record.AddTemplateArgumentList(&D->getTemplateInstantiationArgs()); 1457 } 1458 1459 // Explicit info. 1460 Record.AddTypeSourceInfo(D->getTypeAsWritten()); 1461 if (D->getTypeAsWritten()) { 1462 Record.AddSourceLocation(D->getExternLoc()); 1463 Record.AddSourceLocation(D->getTemplateKeywordLoc()); 1464 } 1465 1466 Record.AddTemplateArgumentList(&D->getTemplateArgs()); 1467 Record.AddSourceLocation(D->getPointOfInstantiation()); 1468 Record.push_back(D->getSpecializationKind()); 1469 Record.push_back(D->isCanonicalDecl()); 1470 1471 if (D->isCanonicalDecl()) { 1472 // When reading, we'll add it to the folding set of the following template. 1473 Record.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl()); 1474 } 1475 1476 Code = serialization::DECL_VAR_TEMPLATE_SPECIALIZATION; 1477 } 1478 1479 void ASTDeclWriter::VisitVarTemplatePartialSpecializationDecl( 1480 VarTemplatePartialSpecializationDecl *D) { 1481 VisitVarTemplateSpecializationDecl(D); 1482 1483 Record.AddTemplateParameterList(D->getTemplateParameters()); 1484 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten()); 1485 1486 // These are read/set from/to the first declaration. 1487 if (D->getPreviousDecl() == nullptr) { 1488 Record.AddDeclRef(D->getInstantiatedFromMember()); 1489 Record.push_back(D->isMemberSpecialization()); 1490 } 1491 1492 Code = serialization::DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION; 1493 } 1494 1495 void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl( 1496 ClassScopeFunctionSpecializationDecl *D) { 1497 VisitDecl(D); 1498 Record.AddDeclRef(D->getSpecialization()); 1499 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION; 1500 } 1501 1502 1503 void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { 1504 VisitRedeclarableTemplateDecl(D); 1505 1506 if (D->isFirstDecl()) 1507 AddTemplateSpecializations(D); 1508 Code = serialization::DECL_FUNCTION_TEMPLATE; 1509 } 1510 1511 void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) { 1512 VisitTypeDecl(D); 1513 1514 Record.push_back(D->wasDeclaredWithTypename()); 1515 1516 bool OwnsDefaultArg = D->hasDefaultArgument() && 1517 !D->defaultArgumentWasInherited(); 1518 Record.push_back(OwnsDefaultArg); 1519 if (OwnsDefaultArg) 1520 Record.AddTypeSourceInfo(D->getDefaultArgumentInfo()); 1521 1522 Code = serialization::DECL_TEMPLATE_TYPE_PARM; 1523 } 1524 1525 void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) { 1526 // For an expanded parameter pack, record the number of expansion types here 1527 // so that it's easier for deserialization to allocate the right amount of 1528 // memory. 1529 if (D->isExpandedParameterPack()) 1530 Record.push_back(D->getNumExpansionTypes()); 1531 1532 VisitDeclaratorDecl(D); 1533 // TemplateParmPosition. 1534 Record.push_back(D->getDepth()); 1535 Record.push_back(D->getPosition()); 1536 1537 if (D->isExpandedParameterPack()) { 1538 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { 1539 Record.AddTypeRef(D->getExpansionType(I)); 1540 Record.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I)); 1541 } 1542 1543 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK; 1544 } else { 1545 // Rest of NonTypeTemplateParmDecl. 1546 Record.push_back(D->isParameterPack()); 1547 bool OwnsDefaultArg = D->hasDefaultArgument() && 1548 !D->defaultArgumentWasInherited(); 1549 Record.push_back(OwnsDefaultArg); 1550 if (OwnsDefaultArg) 1551 Record.AddStmt(D->getDefaultArgument()); 1552 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM; 1553 } 1554 } 1555 1556 void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) { 1557 // For an expanded parameter pack, record the number of expansion types here 1558 // so that it's easier for deserialization to allocate the right amount of 1559 // memory. 1560 if (D->isExpandedParameterPack()) 1561 Record.push_back(D->getNumExpansionTemplateParameters()); 1562 1563 VisitTemplateDecl(D); 1564 // TemplateParmPosition. 1565 Record.push_back(D->getDepth()); 1566 Record.push_back(D->getPosition()); 1567 1568 if (D->isExpandedParameterPack()) { 1569 for (unsigned I = 0, N = D->getNumExpansionTemplateParameters(); 1570 I != N; ++I) 1571 Record.AddTemplateParameterList(D->getExpansionTemplateParameters(I)); 1572 Code = serialization::DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK; 1573 } else { 1574 // Rest of TemplateTemplateParmDecl. 1575 Record.push_back(D->isParameterPack()); 1576 bool OwnsDefaultArg = D->hasDefaultArgument() && 1577 !D->defaultArgumentWasInherited(); 1578 Record.push_back(OwnsDefaultArg); 1579 if (OwnsDefaultArg) 1580 Record.AddTemplateArgumentLoc(D->getDefaultArgument()); 1581 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM; 1582 } 1583 } 1584 1585 void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { 1586 VisitRedeclarableTemplateDecl(D); 1587 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE; 1588 } 1589 1590 void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) { 1591 VisitDecl(D); 1592 Record.AddStmt(D->getAssertExpr()); 1593 Record.push_back(D->isFailed()); 1594 Record.AddStmt(D->getMessage()); 1595 Record.AddSourceLocation(D->getRParenLoc()); 1596 Code = serialization::DECL_STATIC_ASSERT; 1597 } 1598 1599 /// \brief Emit the DeclContext part of a declaration context decl. 1600 void ASTDeclWriter::VisitDeclContext(DeclContext *DC) { 1601 Record.AddOffset(Writer.WriteDeclContextLexicalBlock(Context, DC)); 1602 Record.AddOffset(Writer.WriteDeclContextVisibleBlock(Context, DC)); 1603 } 1604 1605 const Decl *ASTWriter::getFirstLocalDecl(const Decl *D) { 1606 assert(IsLocalDecl(D) && "expected a local declaration"); 1607 1608 const Decl *Canon = D->getCanonicalDecl(); 1609 if (IsLocalDecl(Canon)) 1610 return Canon; 1611 1612 const Decl *&CacheEntry = FirstLocalDeclCache[Canon]; 1613 if (CacheEntry) 1614 return CacheEntry; 1615 1616 for (const Decl *Redecl = D; Redecl; Redecl = Redecl->getPreviousDecl()) 1617 if (IsLocalDecl(Redecl)) 1618 D = Redecl; 1619 return CacheEntry = D; 1620 } 1621 1622 template <typename T> 1623 void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) { 1624 T *First = D->getFirstDecl(); 1625 T *MostRecent = First->getMostRecentDecl(); 1626 T *DAsT = static_cast<T *>(D); 1627 if (MostRecent != First) { 1628 assert(isRedeclarableDeclKind(DAsT->getKind()) && 1629 "Not considered redeclarable?"); 1630 1631 Record.AddDeclRef(First); 1632 1633 // Write out a list of local redeclarations of this declaration if it's the 1634 // first local declaration in the chain. 1635 const Decl *FirstLocal = Writer.getFirstLocalDecl(DAsT); 1636 if (DAsT == FirstLocal) { 1637 // Emit a list of all imported first declarations so that we can be sure 1638 // that all redeclarations visible to this module are before D in the 1639 // redecl chain. 1640 unsigned I = Record.size(); 1641 Record.push_back(0); 1642 if (Writer.Chain) 1643 AddFirstDeclFromEachModule(DAsT, /*IncludeLocal*/false); 1644 // This is the number of imported first declarations + 1. 1645 Record[I] = Record.size() - I; 1646 1647 // Collect the set of local redeclarations of this declaration, from 1648 // newest to oldest. 1649 ASTWriter::RecordData LocalRedecls; 1650 ASTRecordWriter LocalRedeclWriter(Record, LocalRedecls); 1651 for (const Decl *Prev = FirstLocal->getMostRecentDecl(); 1652 Prev != FirstLocal; Prev = Prev->getPreviousDecl()) 1653 if (!Prev->isFromASTFile()) 1654 LocalRedeclWriter.AddDeclRef(Prev); 1655 1656 // If we have any redecls, write them now as a separate record preceding 1657 // the declaration itself. 1658 if (LocalRedecls.empty()) 1659 Record.push_back(0); 1660 else 1661 Record.AddOffset(LocalRedeclWriter.Emit(LOCAL_REDECLARATIONS)); 1662 } else { 1663 Record.push_back(0); 1664 Record.AddDeclRef(FirstLocal); 1665 } 1666 1667 // Make sure that we serialize both the previous and the most-recent 1668 // declarations, which (transitively) ensures that all declarations in the 1669 // chain get serialized. 1670 // 1671 // FIXME: This is not correct; when we reach an imported declaration we 1672 // won't emit its previous declaration. 1673 (void)Writer.GetDeclRef(D->getPreviousDecl()); 1674 (void)Writer.GetDeclRef(MostRecent); 1675 } else { 1676 // We use the sentinel value 0 to indicate an only declaration. 1677 Record.push_back(0); 1678 } 1679 } 1680 1681 void ASTDeclWriter::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) { 1682 Record.push_back(D->varlist_size()); 1683 VisitDecl(D); 1684 for (auto *I : D->varlists()) 1685 Record.AddStmt(I); 1686 Code = serialization::DECL_OMP_THREADPRIVATE; 1687 } 1688 1689 void ASTDeclWriter::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) { 1690 VisitValueDecl(D); 1691 Record.AddSourceLocation(D->getLocStart()); 1692 Record.AddStmt(D->getCombiner()); 1693 Record.AddStmt(D->getInitializer()); 1694 Record.AddDeclRef(D->getPrevDeclInScope()); 1695 Code = serialization::DECL_OMP_DECLARE_REDUCTION; 1696 } 1697 1698 void ASTDeclWriter::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) { 1699 VisitVarDecl(D); 1700 Code = serialization::DECL_OMP_CAPTUREDEXPR; 1701 } 1702 1703 //===----------------------------------------------------------------------===// 1704 // ASTWriter Implementation 1705 //===----------------------------------------------------------------------===// 1706 1707 void ASTWriter::WriteDeclAbbrevs() { 1708 using namespace llvm; 1709 1710 std::shared_ptr<BitCodeAbbrev> Abv; 1711 1712 // Abbreviation for DECL_FIELD 1713 Abv = std::make_shared<BitCodeAbbrev>(); 1714 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD)); 1715 // Decl 1716 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1717 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 1718 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1719 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1720 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1721 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1722 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1723 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1724 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 1725 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1726 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1727 // NamedDecl 1728 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1729 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1730 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 1731 // ValueDecl 1732 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1733 // DeclaratorDecl 1734 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1735 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1736 // FieldDecl 1737 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 1738 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth 1739 // Type Source Info 1740 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1741 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1742 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1743 DeclFieldAbbrev = Stream.EmitAbbrev(std::move(Abv)); 1744 1745 // Abbreviation for DECL_OBJC_IVAR 1746 Abv = std::make_shared<BitCodeAbbrev>(); 1747 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR)); 1748 // Decl 1749 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1750 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 1751 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1752 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1753 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1754 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1755 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1756 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1757 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 1758 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1759 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1760 // NamedDecl 1761 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1762 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1763 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 1764 // ValueDecl 1765 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1766 // DeclaratorDecl 1767 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1768 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1769 // FieldDecl 1770 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 1771 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth 1772 // ObjC Ivar 1773 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl 1774 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize 1775 // Type Source Info 1776 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1777 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1778 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1779 DeclObjCIvarAbbrev = Stream.EmitAbbrev(std::move(Abv)); 1780 1781 // Abbreviation for DECL_ENUM 1782 Abv = std::make_shared<BitCodeAbbrev>(); 1783 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM)); 1784 // Redeclarable 1785 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1786 // Decl 1787 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1788 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 1789 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1790 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1791 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1792 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1793 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1794 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1795 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1796 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1797 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1798 // NamedDecl 1799 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1800 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1801 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 1802 // TypeDecl 1803 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1804 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1805 // TagDecl 1806 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 1807 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 1808 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition 1809 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 1810 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding 1811 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired 1812 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1813 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1814 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind 1815 // EnumDecl 1816 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef 1817 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType 1818 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType 1819 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits 1820 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits 1821 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped 1822 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag 1823 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed 1824 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum 1825 // DC 1826 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 1827 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 1828 DeclEnumAbbrev = Stream.EmitAbbrev(std::move(Abv)); 1829 1830 // Abbreviation for DECL_RECORD 1831 Abv = std::make_shared<BitCodeAbbrev>(); 1832 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD)); 1833 // Redeclarable 1834 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1835 // Decl 1836 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1837 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 1838 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1839 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1840 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1841 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1842 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1843 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1844 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1845 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1846 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1847 // NamedDecl 1848 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1849 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1850 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 1851 // TypeDecl 1852 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1853 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1854 // TagDecl 1855 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 1856 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 1857 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition 1858 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 1859 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding 1860 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired 1861 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1862 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 1863 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind 1864 // RecordDecl 1865 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember 1866 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion 1867 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember 1868 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasVolatileMember 1869 // DC 1870 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 1871 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 1872 DeclRecordAbbrev = Stream.EmitAbbrev(std::move(Abv)); 1873 1874 // Abbreviation for DECL_PARM_VAR 1875 Abv = std::make_shared<BitCodeAbbrev>(); 1876 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR)); 1877 // Redeclarable 1878 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1879 // Decl 1880 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1881 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 1882 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1883 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1884 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1885 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1886 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1887 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1888 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1889 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1890 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1891 // NamedDecl 1892 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1893 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1894 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 1895 // ValueDecl 1896 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1897 // DeclaratorDecl 1898 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1899 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1900 // VarDecl 1901 Abv->Add(BitCodeAbbrevOp(0)); // SClass 1902 Abv->Add(BitCodeAbbrevOp(0)); // TSCSpec 1903 Abv->Add(BitCodeAbbrevOp(0)); // InitStyle 1904 Abv->Add(BitCodeAbbrevOp(0)); // Linkage 1905 Abv->Add(BitCodeAbbrevOp(0)); // HasInit 1906 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo 1907 // ParmVarDecl 1908 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter 1909 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth 1910 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex 1911 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier 1912 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted 1913 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg 1914 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg 1915 // Type Source Info 1916 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1917 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1918 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1919 DeclParmVarAbbrev = Stream.EmitAbbrev(std::move(Abv)); 1920 1921 // Abbreviation for DECL_TYPEDEF 1922 Abv = std::make_shared<BitCodeAbbrev>(); 1923 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF)); 1924 // Redeclarable 1925 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1926 // Decl 1927 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1928 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 1929 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1930 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1931 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1932 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isUsed 1933 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isReferenced 1934 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1935 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // C++ AccessSpecifier 1936 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1937 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1938 // NamedDecl 1939 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1940 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1941 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 1942 // TypeDecl 1943 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 1944 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 1945 // TypedefDecl 1946 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1947 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1948 DeclTypedefAbbrev = Stream.EmitAbbrev(std::move(Abv)); 1949 1950 // Abbreviation for DECL_VAR 1951 Abv = std::make_shared<BitCodeAbbrev>(); 1952 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR)); 1953 // Redeclarable 1954 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 1955 // Decl 1956 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 1957 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 1958 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 1959 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 1960 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 1961 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 1962 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 1963 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 1964 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 1965 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate 1966 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 1967 // NamedDecl 1968 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 1969 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 1970 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 1971 // ValueDecl 1972 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 1973 // DeclaratorDecl 1974 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 1975 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 1976 // VarDecl 1977 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // SClass 1978 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // TSCSpec 1979 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // InitStyle 1980 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsThisDeclarationADemotedDefinition 1981 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable 1982 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable 1983 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl 1984 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong 1985 Abv->Add(BitCodeAbbrevOp(0)); // isInline 1986 Abv->Add(BitCodeAbbrevOp(0)); // isInlineSpecified 1987 Abv->Add(BitCodeAbbrevOp(0)); // isConstexpr 1988 Abv->Add(BitCodeAbbrevOp(0)); // isInitCapture 1989 Abv->Add(BitCodeAbbrevOp(0)); // isPrevDeclInSameScope 1990 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage 1991 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // IsInitICE (local) 1992 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // VarKind (local enum) 1993 // Type Source Info 1994 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 1995 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1996 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 1997 DeclVarAbbrev = Stream.EmitAbbrev(std::move(Abv)); 1998 1999 // Abbreviation for DECL_CXX_METHOD 2000 Abv = std::make_shared<BitCodeAbbrev>(); 2001 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CXX_METHOD)); 2002 // RedeclarableDecl 2003 Abv->Add(BitCodeAbbrevOp(0)); // CanonicalDecl 2004 // Decl 2005 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 2006 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 2007 Abv->Add(BitCodeAbbrevOp(0)); // Invalid 2008 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 2009 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Implicit 2010 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Used 2011 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Referenced 2012 Abv->Add(BitCodeAbbrevOp(0)); // InObjCContainer 2013 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Access 2014 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ModulePrivate 2015 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 2016 // NamedDecl 2017 Abv->Add(BitCodeAbbrevOp(DeclarationName::Identifier)); // NameKind 2018 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Identifier 2019 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 2020 // ValueDecl 2021 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2022 // DeclaratorDecl 2023 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerLocStart 2024 Abv->Add(BitCodeAbbrevOp(0)); // HasExtInfo 2025 // FunctionDecl 2026 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 11)); // IDNS 2027 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // StorageClass 2028 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Inline 2029 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InlineSpecified 2030 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ExplicitSpecified 2031 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // VirtualAsWritten 2032 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Pure 2033 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedProto 2034 Abv->Add(BitCodeAbbrevOp(1)); // HasWrittenProto 2035 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Deleted 2036 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Trivial 2037 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Defaulted 2038 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ExplicitlyDefaulted 2039 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ImplicitReturnZero 2040 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constexpr 2041 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // UsesSEHTry 2042 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // SkippedBody 2043 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // LateParsed 2044 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage 2045 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LocEnd 2046 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // TemplateKind 2047 // This Array slurps the rest of the record. Fortunately we want to encode 2048 // (nearly) all the remaining (variable number of) fields in the same way. 2049 // 2050 // This is the function template information if any, then 2051 // NumParams and Params[] from FunctionDecl, and 2052 // NumOverriddenMethods, OverriddenMethods[] from CXXMethodDecl. 2053 // 2054 // Add an AbbrevOp for 'size then elements' and use it here. 2055 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2056 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 2057 DeclCXXMethodAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2058 2059 // Abbreviation for EXPR_DECL_REF 2060 Abv = std::make_shared<BitCodeAbbrev>(); 2061 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF)); 2062 //Stmt 2063 //Expr 2064 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2065 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 2066 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 2067 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 2068 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 2069 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 2070 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 2071 //DeclRefExpr 2072 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier 2073 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound 2074 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs 2075 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates 2076 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2077 1)); // RefersToEnclosingVariableOrCapture 2078 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef 2079 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 2080 DeclRefExprAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2081 2082 // Abbreviation for EXPR_INTEGER_LITERAL 2083 Abv = std::make_shared<BitCodeAbbrev>(); 2084 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL)); 2085 //Stmt 2086 //Expr 2087 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2088 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 2089 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 2090 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 2091 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 2092 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 2093 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 2094 //Integer Literal 2095 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 2096 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width 2097 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value 2098 IntegerLiteralAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2099 2100 // Abbreviation for EXPR_CHARACTER_LITERAL 2101 Abv = std::make_shared<BitCodeAbbrev>(); 2102 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL)); 2103 //Stmt 2104 //Expr 2105 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2106 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 2107 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 2108 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 2109 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 2110 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 2111 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 2112 //Character Literal 2113 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue 2114 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 2115 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // getKind 2116 CharacterLiteralAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2117 2118 // Abbreviation for EXPR_IMPLICIT_CAST 2119 Abv = std::make_shared<BitCodeAbbrev>(); 2120 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_IMPLICIT_CAST)); 2121 // Stmt 2122 // Expr 2123 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2124 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent 2125 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent 2126 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent 2127 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack 2128 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 2129 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 2130 // CastExpr 2131 Abv->Add(BitCodeAbbrevOp(0)); // PathSize 2132 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 6)); // CastKind 2133 // ImplicitCastExpr 2134 ExprImplicitCastAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2135 2136 Abv = std::make_shared<BitCodeAbbrev>(); 2137 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL)); 2138 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 2139 DeclContextLexicalAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2140 2141 Abv = std::make_shared<BitCodeAbbrev>(); 2142 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE)); 2143 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 2144 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2145 } 2146 2147 /// isRequiredDecl - Check if this is a "required" Decl, which must be seen by 2148 /// consumers of the AST. 2149 /// 2150 /// Such decls will always be deserialized from the AST file, so we would like 2151 /// this to be as restrictive as possible. Currently the predicate is driven by 2152 /// code generation requirements, if other clients have a different notion of 2153 /// what is "required" then we may have to consider an alternate scheme where 2154 /// clients can iterate over the top-level decls and get information on them, 2155 /// without necessary deserializing them. We could explicitly require such 2156 /// clients to use a separate API call to "realize" the decl. This should be 2157 /// relatively painless since they would presumably only do it for top-level 2158 /// decls. 2159 static bool isRequiredDecl(const Decl *D, ASTContext &Context, 2160 bool WritingModule, bool ModularCode) { 2161 // An ObjCMethodDecl is never considered as "required" because its 2162 // implementation container always is. 2163 2164 // File scoped assembly or obj-c or OMP declare target implementation must be 2165 // seen. 2166 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D) || 2167 D->hasAttr<OMPDeclareTargetDeclAttr>()) 2168 return true; 2169 2170 if (WritingModule && (isa<VarDecl>(D) || isa<ImportDecl>(D))) { 2171 // These declarations are part of the module initializer, and are emitted 2172 // if and when the module is imported, rather than being emitted eagerly. 2173 return false; 2174 } 2175 2176 return Context.DeclMustBeEmitted(D, ModularCode); 2177 } 2178 2179 void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) { 2180 // Determine the ID for this declaration. 2181 serialization::DeclID ID; 2182 assert(!D->isFromASTFile() && "should not be emitting imported decl"); 2183 serialization::DeclID &IDR = DeclIDs[D]; 2184 if (IDR == 0) 2185 IDR = NextDeclID++; 2186 2187 ID = IDR; 2188 2189 assert(ID >= FirstDeclID && "invalid decl ID"); 2190 2191 RecordData Record; 2192 ASTDeclWriter W(*this, Context, Record); 2193 2194 // Build a record for this declaration 2195 W.Visit(D); 2196 2197 // Emit this declaration to the bitstream. 2198 uint64_t Offset = W.Emit(D); 2199 2200 // Record the offset for this declaration 2201 SourceLocation Loc = D->getLocation(); 2202 unsigned Index = ID - FirstDeclID; 2203 if (DeclOffsets.size() == Index) 2204 DeclOffsets.push_back(DeclOffset(Loc, Offset)); 2205 else if (DeclOffsets.size() < Index) { 2206 // FIXME: Can/should this happen? 2207 DeclOffsets.resize(Index+1); 2208 DeclOffsets[Index].setLocation(Loc); 2209 DeclOffsets[Index].BitOffset = Offset; 2210 } else { 2211 llvm_unreachable("declarations should be emitted in ID order"); 2212 } 2213 2214 SourceManager &SM = Context.getSourceManager(); 2215 if (Loc.isValid() && SM.isLocalSourceLocation(Loc)) 2216 associateDeclWithFile(D, ID); 2217 2218 // Note declarations that should be deserialized eagerly so that we can add 2219 // them to a record in the AST file later. 2220 if (isRequiredDecl(D, Context, WritingModule, false)) 2221 EagerlyDeserializedDecls.push_back(ID); 2222 else if (Context.getLangOpts().ModularCodegen && WritingModule && 2223 isRequiredDecl(D, Context, true, true)) 2224 ModularCodegenDecls.push_back(ID); 2225 } 2226 2227 void ASTRecordWriter::AddFunctionDefinition(const FunctionDecl *FD) { 2228 // Switch case IDs are per function body. 2229 Writer->ClearSwitchCaseIDs(); 2230 2231 assert(FD->doesThisDeclarationHaveABody()); 2232 if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) { 2233 Record->push_back(CD->getNumCtorInitializers()); 2234 if (CD->getNumCtorInitializers()) 2235 AddCXXCtorInitializers( 2236 llvm::makeArrayRef(CD->init_begin(), CD->init_end())); 2237 } 2238 AddStmt(FD->getBody()); 2239 } 2240