1 //===--- ASTWriterDecl.cpp - Declaration Serialization --------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements serialization for Declarations. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "ASTCommon.h" 14 #include "clang/AST/Attr.h" 15 #include "clang/AST/DeclCXX.h" 16 #include "clang/AST/DeclTemplate.h" 17 #include "clang/AST/DeclVisitor.h" 18 #include "clang/AST/Expr.h" 19 #include "clang/AST/OpenMPClause.h" 20 #include "clang/AST/PrettyDeclStackTrace.h" 21 #include "clang/Basic/SourceManager.h" 22 #include "clang/Serialization/ASTReader.h" 23 #include "clang/Serialization/ASTRecordWriter.h" 24 #include "llvm/Bitstream/BitstreamWriter.h" 25 #include "llvm/Support/ErrorHandling.h" 26 #include <optional> 27 using namespace clang; 28 using namespace serialization; 29 30 //===----------------------------------------------------------------------===// 31 // Declaration serialization 32 //===----------------------------------------------------------------------===// 33 34 namespace clang { 35 class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> { 36 ASTWriter &Writer; 37 ASTContext &Context; 38 ASTRecordWriter Record; 39 40 serialization::DeclCode Code; 41 unsigned AbbrevToUse; 42 43 public: 44 ASTDeclWriter(ASTWriter &Writer, ASTContext &Context, 45 ASTWriter::RecordDataImpl &Record) 46 : Writer(Writer), Context(Context), Record(Writer, Record), 47 Code((serialization::DeclCode)0), AbbrevToUse(0) {} 48 49 uint64_t Emit(Decl *D) { 50 if (!Code) 51 llvm::report_fatal_error(StringRef("unexpected declaration kind '") + 52 D->getDeclKindName() + "'"); 53 return Record.Emit(Code, AbbrevToUse); 54 } 55 56 void Visit(Decl *D); 57 58 void VisitDecl(Decl *D); 59 void VisitPragmaCommentDecl(PragmaCommentDecl *D); 60 void VisitPragmaDetectMismatchDecl(PragmaDetectMismatchDecl *D); 61 void VisitTranslationUnitDecl(TranslationUnitDecl *D); 62 void VisitNamedDecl(NamedDecl *D); 63 void VisitLabelDecl(LabelDecl *LD); 64 void VisitNamespaceDecl(NamespaceDecl *D); 65 void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); 66 void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); 67 void VisitTypeDecl(TypeDecl *D); 68 void VisitTypedefNameDecl(TypedefNameDecl *D); 69 void VisitTypedefDecl(TypedefDecl *D); 70 void VisitTypeAliasDecl(TypeAliasDecl *D); 71 void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); 72 void VisitUnresolvedUsingIfExistsDecl(UnresolvedUsingIfExistsDecl *D); 73 void VisitTagDecl(TagDecl *D); 74 void VisitEnumDecl(EnumDecl *D); 75 void VisitRecordDecl(RecordDecl *D); 76 void VisitCXXRecordDecl(CXXRecordDecl *D); 77 void VisitClassTemplateSpecializationDecl( 78 ClassTemplateSpecializationDecl *D); 79 void VisitClassTemplatePartialSpecializationDecl( 80 ClassTemplatePartialSpecializationDecl *D); 81 void VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D); 82 void VisitVarTemplatePartialSpecializationDecl( 83 VarTemplatePartialSpecializationDecl *D); 84 void VisitClassScopeFunctionSpecializationDecl( 85 ClassScopeFunctionSpecializationDecl *D); 86 void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D); 87 void VisitValueDecl(ValueDecl *D); 88 void VisitEnumConstantDecl(EnumConstantDecl *D); 89 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); 90 void VisitDeclaratorDecl(DeclaratorDecl *D); 91 void VisitFunctionDecl(FunctionDecl *D); 92 void VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D); 93 void VisitCXXMethodDecl(CXXMethodDecl *D); 94 void VisitCXXConstructorDecl(CXXConstructorDecl *D); 95 void VisitCXXDestructorDecl(CXXDestructorDecl *D); 96 void VisitCXXConversionDecl(CXXConversionDecl *D); 97 void VisitFieldDecl(FieldDecl *D); 98 void VisitMSPropertyDecl(MSPropertyDecl *D); 99 void VisitMSGuidDecl(MSGuidDecl *D); 100 void VisitUnnamedGlobalConstantDecl(UnnamedGlobalConstantDecl *D); 101 void VisitTemplateParamObjectDecl(TemplateParamObjectDecl *D); 102 void VisitIndirectFieldDecl(IndirectFieldDecl *D); 103 void VisitVarDecl(VarDecl *D); 104 void VisitImplicitParamDecl(ImplicitParamDecl *D); 105 void VisitParmVarDecl(ParmVarDecl *D); 106 void VisitDecompositionDecl(DecompositionDecl *D); 107 void VisitBindingDecl(BindingDecl *D); 108 void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D); 109 void VisitTemplateDecl(TemplateDecl *D); 110 void VisitConceptDecl(ConceptDecl *D); 111 void VisitImplicitConceptSpecializationDecl( 112 ImplicitConceptSpecializationDecl *D); 113 void VisitRequiresExprBodyDecl(RequiresExprBodyDecl *D); 114 void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D); 115 void VisitClassTemplateDecl(ClassTemplateDecl *D); 116 void VisitVarTemplateDecl(VarTemplateDecl *D); 117 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D); 118 void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D); 119 void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D); 120 void VisitUsingDecl(UsingDecl *D); 121 void VisitUsingEnumDecl(UsingEnumDecl *D); 122 void VisitUsingPackDecl(UsingPackDecl *D); 123 void VisitUsingShadowDecl(UsingShadowDecl *D); 124 void VisitConstructorUsingShadowDecl(ConstructorUsingShadowDecl *D); 125 void VisitLinkageSpecDecl(LinkageSpecDecl *D); 126 void VisitExportDecl(ExportDecl *D); 127 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D); 128 void VisitTopLevelStmtDecl(TopLevelStmtDecl *D); 129 void VisitImportDecl(ImportDecl *D); 130 void VisitAccessSpecDecl(AccessSpecDecl *D); 131 void VisitFriendDecl(FriendDecl *D); 132 void VisitFriendTemplateDecl(FriendTemplateDecl *D); 133 void VisitStaticAssertDecl(StaticAssertDecl *D); 134 void VisitBlockDecl(BlockDecl *D); 135 void VisitCapturedDecl(CapturedDecl *D); 136 void VisitEmptyDecl(EmptyDecl *D); 137 void VisitLifetimeExtendedTemporaryDecl(LifetimeExtendedTemporaryDecl *D); 138 void VisitDeclContext(DeclContext *DC); 139 template <typename T> void VisitRedeclarable(Redeclarable<T> *D); 140 void VisitHLSLBufferDecl(HLSLBufferDecl *D); 141 142 // FIXME: Put in the same order is DeclNodes.td? 143 void VisitObjCMethodDecl(ObjCMethodDecl *D); 144 void VisitObjCTypeParamDecl(ObjCTypeParamDecl *D); 145 void VisitObjCContainerDecl(ObjCContainerDecl *D); 146 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); 147 void VisitObjCIvarDecl(ObjCIvarDecl *D); 148 void VisitObjCProtocolDecl(ObjCProtocolDecl *D); 149 void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D); 150 void VisitObjCCategoryDecl(ObjCCategoryDecl *D); 151 void VisitObjCImplDecl(ObjCImplDecl *D); 152 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); 153 void VisitObjCImplementationDecl(ObjCImplementationDecl *D); 154 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D); 155 void VisitObjCPropertyDecl(ObjCPropertyDecl *D); 156 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); 157 void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D); 158 void VisitOMPAllocateDecl(OMPAllocateDecl *D); 159 void VisitOMPRequiresDecl(OMPRequiresDecl *D); 160 void VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D); 161 void VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D); 162 void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D); 163 164 /// Add an Objective-C type parameter list to the given record. 165 void AddObjCTypeParamList(ObjCTypeParamList *typeParams) { 166 // Empty type parameter list. 167 if (!typeParams) { 168 Record.push_back(0); 169 return; 170 } 171 172 Record.push_back(typeParams->size()); 173 for (auto *typeParam : *typeParams) { 174 Record.AddDeclRef(typeParam); 175 } 176 Record.AddSourceLocation(typeParams->getLAngleLoc()); 177 Record.AddSourceLocation(typeParams->getRAngleLoc()); 178 } 179 180 /// Add to the record the first declaration from each module file that 181 /// provides a declaration of D. The intent is to provide a sufficient 182 /// set such that reloading this set will load all current redeclarations. 183 void AddFirstDeclFromEachModule(const Decl *D, bool IncludeLocal) { 184 llvm::MapVector<ModuleFile*, const Decl*> Firsts; 185 // FIXME: We can skip entries that we know are implied by others. 186 for (const Decl *R = D->getMostRecentDecl(); R; R = R->getPreviousDecl()) { 187 if (R->isFromASTFile()) 188 Firsts[Writer.Chain->getOwningModuleFile(R)] = R; 189 else if (IncludeLocal) 190 Firsts[nullptr] = R; 191 } 192 for (const auto &F : Firsts) 193 Record.AddDeclRef(F.second); 194 } 195 196 /// Get the specialization decl from an entry in the specialization list. 197 template <typename EntryType> 198 typename RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::DeclType * 199 getSpecializationDecl(EntryType &T) { 200 return RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::getDecl(&T); 201 } 202 203 /// Get the list of partial specializations from a template's common ptr. 204 template<typename T> 205 decltype(T::PartialSpecializations) &getPartialSpecializations(T *Common) { 206 return Common->PartialSpecializations; 207 } 208 ArrayRef<Decl> getPartialSpecializations(FunctionTemplateDecl::Common *) { 209 return std::nullopt; 210 } 211 212 template<typename DeclTy> 213 void AddTemplateSpecializations(DeclTy *D) { 214 auto *Common = D->getCommonPtr(); 215 216 // If we have any lazy specializations, and the external AST source is 217 // our chained AST reader, we can just write out the DeclIDs. Otherwise, 218 // we need to resolve them to actual declarations. 219 if (Writer.Chain != Writer.Context->getExternalSource() && 220 Common->LazySpecializations) { 221 D->LoadLazySpecializations(); 222 assert(!Common->LazySpecializations); 223 } 224 225 ArrayRef<DeclID> LazySpecializations; 226 if (auto *LS = Common->LazySpecializations) 227 LazySpecializations = llvm::ArrayRef(LS + 1, LS[0]); 228 229 // Add a slot to the record for the number of specializations. 230 unsigned I = Record.size(); 231 Record.push_back(0); 232 233 // AddFirstDeclFromEachModule might trigger deserialization, invalidating 234 // *Specializations iterators. 235 llvm::SmallVector<const Decl*, 16> Specs; 236 for (auto &Entry : Common->Specializations) 237 Specs.push_back(getSpecializationDecl(Entry)); 238 for (auto &Entry : getPartialSpecializations(Common)) 239 Specs.push_back(getSpecializationDecl(Entry)); 240 241 for (auto *D : Specs) { 242 assert(D->isCanonicalDecl() && "non-canonical decl in set"); 243 AddFirstDeclFromEachModule(D, /*IncludeLocal*/true); 244 } 245 Record.append(LazySpecializations.begin(), LazySpecializations.end()); 246 247 // Update the size entry we added earlier. 248 Record[I] = Record.size() - I - 1; 249 } 250 251 /// Ensure that this template specialization is associated with the specified 252 /// template on reload. 253 void RegisterTemplateSpecialization(const Decl *Template, 254 const Decl *Specialization) { 255 Template = Template->getCanonicalDecl(); 256 257 // If the canonical template is local, we'll write out this specialization 258 // when we emit it. 259 // FIXME: We can do the same thing if there is any local declaration of 260 // the template, to avoid emitting an update record. 261 if (!Template->isFromASTFile()) 262 return; 263 264 // We only need to associate the first local declaration of the 265 // specialization. The other declarations will get pulled in by it. 266 if (Writer.getFirstLocalDecl(Specialization) != Specialization) 267 return; 268 269 Writer.DeclUpdates[Template].push_back(ASTWriter::DeclUpdate( 270 UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION, Specialization)); 271 } 272 }; 273 } 274 275 void ASTDeclWriter::Visit(Decl *D) { 276 DeclVisitor<ASTDeclWriter>::Visit(D); 277 278 // Source locations require array (variable-length) abbreviations. The 279 // abbreviation infrastructure requires that arrays are encoded last, so 280 // we handle it here in the case of those classes derived from DeclaratorDecl 281 if (auto *DD = dyn_cast<DeclaratorDecl>(D)) { 282 if (auto *TInfo = DD->getTypeSourceInfo()) 283 Record.AddTypeLoc(TInfo->getTypeLoc()); 284 } 285 286 // Handle FunctionDecl's body here and write it after all other Stmts/Exprs 287 // have been written. We want it last because we will not read it back when 288 // retrieving it from the AST, we'll just lazily set the offset. 289 if (auto *FD = dyn_cast<FunctionDecl>(D)) { 290 Record.push_back(FD->doesThisDeclarationHaveABody()); 291 if (FD->doesThisDeclarationHaveABody()) 292 Record.AddFunctionDefinition(FD); 293 } 294 295 // Similar to FunctionDecls, handle VarDecl's initializer here and write it 296 // after all other Stmts/Exprs. We will not read the initializer until after 297 // we have finished recursive deserialization, because it can recursively 298 // refer back to the variable. 299 if (auto *VD = dyn_cast<VarDecl>(D)) { 300 Record.AddVarDeclInit(VD); 301 } 302 303 // And similarly for FieldDecls. We already serialized whether there is a 304 // default member initializer. 305 if (auto *FD = dyn_cast<FieldDecl>(D)) { 306 if (FD->hasInClassInitializer()) { 307 if (Expr *Init = FD->getInClassInitializer()) { 308 Record.push_back(1); 309 Record.AddStmt(Init); 310 } else { 311 Record.push_back(0); 312 // Initializer has not been instantiated yet. 313 } 314 } 315 } 316 317 // If this declaration is also a DeclContext, write blocks for the 318 // declarations that lexically stored inside its context and those 319 // declarations that are visible from its context. 320 if (auto *DC = dyn_cast<DeclContext>(D)) 321 VisitDeclContext(DC); 322 } 323 324 void ASTDeclWriter::VisitDecl(Decl *D) { 325 Record.AddDeclRef(cast_or_null<Decl>(D->getDeclContext())); 326 if (D->getDeclContext() != D->getLexicalDeclContext()) 327 Record.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext())); 328 else 329 Record.push_back(0); 330 Record.push_back(D->isInvalidDecl()); 331 Record.push_back(D->hasAttrs()); 332 if (D->hasAttrs()) 333 Record.AddAttributes(D->getAttrs()); 334 Record.push_back(D->isImplicit()); 335 Record.push_back(D->isUsed(false)); 336 Record.push_back(D->isReferenced()); 337 Record.push_back(D->isTopLevelDeclInObjCContainer()); 338 Record.push_back(D->getAccess()); 339 Record.push_back((uint64_t)D->getModuleOwnershipKind()); 340 Record.push_back(Writer.getSubmoduleID(D->getOwningModule())); 341 342 // If this declaration injected a name into a context different from its 343 // lexical context, and that context is an imported namespace, we need to 344 // update its visible declarations to include this name. 345 // 346 // This happens when we instantiate a class with a friend declaration or a 347 // function with a local extern declaration, for instance. 348 // 349 // FIXME: Can we handle this in AddedVisibleDecl instead? 350 if (D->isOutOfLine()) { 351 auto *DC = D->getDeclContext(); 352 while (auto *NS = dyn_cast<NamespaceDecl>(DC->getRedeclContext())) { 353 if (!NS->isFromASTFile()) 354 break; 355 Writer.UpdatedDeclContexts.insert(NS->getPrimaryContext()); 356 if (!NS->isInlineNamespace()) 357 break; 358 DC = NS->getParent(); 359 } 360 } 361 } 362 363 void ASTDeclWriter::VisitPragmaCommentDecl(PragmaCommentDecl *D) { 364 StringRef Arg = D->getArg(); 365 Record.push_back(Arg.size()); 366 VisitDecl(D); 367 Record.AddSourceLocation(D->getBeginLoc()); 368 Record.push_back(D->getCommentKind()); 369 Record.AddString(Arg); 370 Code = serialization::DECL_PRAGMA_COMMENT; 371 } 372 373 void ASTDeclWriter::VisitPragmaDetectMismatchDecl( 374 PragmaDetectMismatchDecl *D) { 375 StringRef Name = D->getName(); 376 StringRef Value = D->getValue(); 377 Record.push_back(Name.size() + 1 + Value.size()); 378 VisitDecl(D); 379 Record.AddSourceLocation(D->getBeginLoc()); 380 Record.AddString(Name); 381 Record.AddString(Value); 382 Code = serialization::DECL_PRAGMA_DETECT_MISMATCH; 383 } 384 385 void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 386 llvm_unreachable("Translation units aren't directly serialized"); 387 } 388 389 void ASTDeclWriter::VisitNamedDecl(NamedDecl *D) { 390 VisitDecl(D); 391 Record.AddDeclarationName(D->getDeclName()); 392 Record.push_back(needsAnonymousDeclarationNumber(D) 393 ? Writer.getAnonymousDeclarationNumber(D) 394 : 0); 395 } 396 397 void ASTDeclWriter::VisitTypeDecl(TypeDecl *D) { 398 VisitNamedDecl(D); 399 Record.AddSourceLocation(D->getBeginLoc()); 400 Record.AddTypeRef(QualType(D->getTypeForDecl(), 0)); 401 } 402 403 void ASTDeclWriter::VisitTypedefNameDecl(TypedefNameDecl *D) { 404 VisitRedeclarable(D); 405 VisitTypeDecl(D); 406 Record.AddTypeSourceInfo(D->getTypeSourceInfo()); 407 Record.push_back(D->isModed()); 408 if (D->isModed()) 409 Record.AddTypeRef(D->getUnderlyingType()); 410 Record.AddDeclRef(D->getAnonDeclWithTypedefName(false)); 411 } 412 413 void ASTDeclWriter::VisitTypedefDecl(TypedefDecl *D) { 414 VisitTypedefNameDecl(D); 415 if (D->getDeclContext() == D->getLexicalDeclContext() && 416 !D->hasAttrs() && 417 !D->isImplicit() && 418 D->getFirstDecl() == D->getMostRecentDecl() && 419 !D->isInvalidDecl() && 420 !D->isTopLevelDeclInObjCContainer() && 421 !D->isModulePrivate() && 422 !needsAnonymousDeclarationNumber(D) && 423 D->getDeclName().getNameKind() == DeclarationName::Identifier) 424 AbbrevToUse = Writer.getDeclTypedefAbbrev(); 425 426 Code = serialization::DECL_TYPEDEF; 427 } 428 429 void ASTDeclWriter::VisitTypeAliasDecl(TypeAliasDecl *D) { 430 VisitTypedefNameDecl(D); 431 Record.AddDeclRef(D->getDescribedAliasTemplate()); 432 Code = serialization::DECL_TYPEALIAS; 433 } 434 435 void ASTDeclWriter::VisitTagDecl(TagDecl *D) { 436 static_assert(DeclContext::NumTagDeclBits == 10, 437 "You need to update the serializer after you change the " 438 "TagDeclBits"); 439 440 VisitRedeclarable(D); 441 VisitTypeDecl(D); 442 Record.push_back(D->getIdentifierNamespace()); 443 Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding 444 if (!isa<CXXRecordDecl>(D)) 445 Record.push_back(D->isCompleteDefinition()); 446 Record.push_back(D->isEmbeddedInDeclarator()); 447 Record.push_back(D->isFreeStanding()); 448 Record.push_back(D->isCompleteDefinitionRequired()); 449 Record.AddSourceRange(D->getBraceRange()); 450 451 if (D->hasExtInfo()) { 452 Record.push_back(1); 453 Record.AddQualifierInfo(*D->getExtInfo()); 454 } else if (auto *TD = D->getTypedefNameForAnonDecl()) { 455 Record.push_back(2); 456 Record.AddDeclRef(TD); 457 Record.AddIdentifierRef(TD->getDeclName().getAsIdentifierInfo()); 458 } else { 459 Record.push_back(0); 460 } 461 } 462 463 void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) { 464 static_assert(DeclContext::NumEnumDeclBits == 20, 465 "You need to update the serializer after you change the " 466 "EnumDeclBits"); 467 468 VisitTagDecl(D); 469 Record.AddTypeSourceInfo(D->getIntegerTypeSourceInfo()); 470 if (!D->getIntegerTypeSourceInfo()) 471 Record.AddTypeRef(D->getIntegerType()); 472 Record.AddTypeRef(D->getPromotionType()); 473 Record.push_back(D->getNumPositiveBits()); 474 Record.push_back(D->getNumNegativeBits()); 475 Record.push_back(D->isScoped()); 476 Record.push_back(D->isScopedUsingClassTag()); 477 Record.push_back(D->isFixed()); 478 Record.push_back(D->getODRHash()); 479 480 if (MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo()) { 481 Record.AddDeclRef(MemberInfo->getInstantiatedFrom()); 482 Record.push_back(MemberInfo->getTemplateSpecializationKind()); 483 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation()); 484 } else { 485 Record.AddDeclRef(nullptr); 486 } 487 488 if (D->getDeclContext() == D->getLexicalDeclContext() && 489 !D->hasAttrs() && 490 !D->isImplicit() && 491 !D->isUsed(false) && 492 !D->hasExtInfo() && 493 !D->getTypedefNameForAnonDecl() && 494 D->getFirstDecl() == D->getMostRecentDecl() && 495 !D->isInvalidDecl() && 496 !D->isReferenced() && 497 !D->isTopLevelDeclInObjCContainer() && 498 D->getAccess() == AS_none && 499 !D->isModulePrivate() && 500 !CXXRecordDecl::classofKind(D->getKind()) && 501 !D->getIntegerTypeSourceInfo() && 502 !D->getMemberSpecializationInfo() && 503 !needsAnonymousDeclarationNumber(D) && 504 D->getDeclName().getNameKind() == DeclarationName::Identifier) 505 AbbrevToUse = Writer.getDeclEnumAbbrev(); 506 507 Code = serialization::DECL_ENUM; 508 } 509 510 void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) { 511 static_assert(DeclContext::NumRecordDeclBits == 41, 512 "You need to update the serializer after you change the " 513 "RecordDeclBits"); 514 515 VisitTagDecl(D); 516 Record.push_back(D->hasFlexibleArrayMember()); 517 Record.push_back(D->isAnonymousStructOrUnion()); 518 Record.push_back(D->hasObjectMember()); 519 Record.push_back(D->hasVolatileMember()); 520 Record.push_back(D->isNonTrivialToPrimitiveDefaultInitialize()); 521 Record.push_back(D->isNonTrivialToPrimitiveCopy()); 522 Record.push_back(D->isNonTrivialToPrimitiveDestroy()); 523 Record.push_back(D->hasNonTrivialToPrimitiveDefaultInitializeCUnion()); 524 Record.push_back(D->hasNonTrivialToPrimitiveDestructCUnion()); 525 Record.push_back(D->hasNonTrivialToPrimitiveCopyCUnion()); 526 Record.push_back(D->isParamDestroyedInCallee()); 527 Record.push_back(D->getArgPassingRestrictions()); 528 // Only compute this for C/Objective-C, in C++ this is computed as part 529 // of CXXRecordDecl. 530 if (!isa<CXXRecordDecl>(D)) 531 Record.push_back(D->getODRHash()); 532 533 if (D->getDeclContext() == D->getLexicalDeclContext() && 534 !D->hasAttrs() && 535 !D->isImplicit() && 536 !D->isUsed(false) && 537 !D->hasExtInfo() && 538 !D->getTypedefNameForAnonDecl() && 539 D->getFirstDecl() == D->getMostRecentDecl() && 540 !D->isInvalidDecl() && 541 !D->isReferenced() && 542 !D->isTopLevelDeclInObjCContainer() && 543 D->getAccess() == AS_none && 544 !D->isModulePrivate() && 545 !CXXRecordDecl::classofKind(D->getKind()) && 546 !needsAnonymousDeclarationNumber(D) && 547 D->getDeclName().getNameKind() == DeclarationName::Identifier) 548 AbbrevToUse = Writer.getDeclRecordAbbrev(); 549 550 Code = serialization::DECL_RECORD; 551 } 552 553 void ASTDeclWriter::VisitValueDecl(ValueDecl *D) { 554 VisitNamedDecl(D); 555 Record.AddTypeRef(D->getType()); 556 } 557 558 void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) { 559 VisitValueDecl(D); 560 Record.push_back(D->getInitExpr()? 1 : 0); 561 if (D->getInitExpr()) 562 Record.AddStmt(D->getInitExpr()); 563 Record.AddAPSInt(D->getInitVal()); 564 565 Code = serialization::DECL_ENUM_CONSTANT; 566 } 567 568 void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) { 569 VisitValueDecl(D); 570 Record.AddSourceLocation(D->getInnerLocStart()); 571 Record.push_back(D->hasExtInfo()); 572 if (D->hasExtInfo()) { 573 DeclaratorDecl::ExtInfo *Info = D->getExtInfo(); 574 Record.AddQualifierInfo(*Info); 575 Record.AddStmt(Info->TrailingRequiresClause); 576 } 577 // The location information is deferred until the end of the record. 578 Record.AddTypeRef(D->getTypeSourceInfo() ? D->getTypeSourceInfo()->getType() 579 : QualType()); 580 } 581 582 void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) { 583 static_assert(DeclContext::NumFunctionDeclBits == 31, 584 "You need to update the serializer after you change the " 585 "FunctionDeclBits"); 586 587 VisitRedeclarable(D); 588 589 Record.push_back(D->getTemplatedKind()); 590 switch (D->getTemplatedKind()) { 591 case FunctionDecl::TK_NonTemplate: 592 break; 593 case FunctionDecl::TK_DependentNonTemplate: 594 Record.AddDeclRef(D->getInstantiatedFromDecl()); 595 break; 596 case FunctionDecl::TK_FunctionTemplate: 597 Record.AddDeclRef(D->getDescribedFunctionTemplate()); 598 break; 599 case FunctionDecl::TK_MemberSpecialization: { 600 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo(); 601 Record.AddDeclRef(MemberInfo->getInstantiatedFrom()); 602 Record.push_back(MemberInfo->getTemplateSpecializationKind()); 603 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation()); 604 break; 605 } 606 case FunctionDecl::TK_FunctionTemplateSpecialization: { 607 FunctionTemplateSpecializationInfo * 608 FTSInfo = D->getTemplateSpecializationInfo(); 609 610 RegisterTemplateSpecialization(FTSInfo->getTemplate(), D); 611 612 Record.AddDeclRef(FTSInfo->getTemplate()); 613 Record.push_back(FTSInfo->getTemplateSpecializationKind()); 614 615 // Template arguments. 616 Record.AddTemplateArgumentList(FTSInfo->TemplateArguments); 617 618 // Template args as written. 619 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != nullptr); 620 if (FTSInfo->TemplateArgumentsAsWritten) { 621 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs); 622 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs; 623 i!=e; ++i) 624 Record.AddTemplateArgumentLoc( 625 (*FTSInfo->TemplateArgumentsAsWritten)[i]); 626 Record.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc); 627 Record.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc); 628 } 629 630 Record.AddSourceLocation(FTSInfo->getPointOfInstantiation()); 631 632 if (MemberSpecializationInfo *MemberInfo = 633 FTSInfo->getMemberSpecializationInfo()) { 634 Record.push_back(1); 635 Record.AddDeclRef(MemberInfo->getInstantiatedFrom()); 636 Record.push_back(MemberInfo->getTemplateSpecializationKind()); 637 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation()); 638 } else { 639 Record.push_back(0); 640 } 641 642 if (D->isCanonicalDecl()) { 643 // Write the template that contains the specializations set. We will 644 // add a FunctionTemplateSpecializationInfo to it when reading. 645 Record.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl()); 646 } 647 break; 648 } 649 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: { 650 DependentFunctionTemplateSpecializationInfo * 651 DFTSInfo = D->getDependentSpecializationInfo(); 652 653 // Templates. 654 Record.push_back(DFTSInfo->getNumTemplates()); 655 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i) 656 Record.AddDeclRef(DFTSInfo->getTemplate(i)); 657 658 // Templates args. 659 Record.push_back(DFTSInfo->getNumTemplateArgs()); 660 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i) 661 Record.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i)); 662 Record.AddSourceLocation(DFTSInfo->getLAngleLoc()); 663 Record.AddSourceLocation(DFTSInfo->getRAngleLoc()); 664 break; 665 } 666 } 667 668 VisitDeclaratorDecl(D); 669 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName()); 670 Record.push_back(D->getIdentifierNamespace()); 671 672 // FunctionDecl's body is handled last at ASTWriterDecl::Visit, 673 // after everything else is written. 674 Record.push_back( 675 static_cast<int>(D->getStorageClass())); // FIXME: stable encoding 676 Record.push_back(D->isInlineSpecified()); 677 Record.push_back(D->isInlined()); 678 Record.push_back(D->isVirtualAsWritten()); 679 Record.push_back(D->isPure()); 680 Record.push_back(D->hasInheritedPrototype()); 681 Record.push_back(D->hasWrittenPrototype()); 682 Record.push_back(D->isDeletedBit()); 683 Record.push_back(D->isTrivial()); 684 Record.push_back(D->isTrivialForCall()); 685 Record.push_back(D->isDefaulted()); 686 Record.push_back(D->isExplicitlyDefaulted()); 687 Record.push_back(D->isIneligibleOrNotSelected()); 688 Record.push_back(D->hasImplicitReturnZero()); 689 Record.push_back(static_cast<uint64_t>(D->getConstexprKind())); 690 Record.push_back(D->usesSEHTry()); 691 Record.push_back(D->hasSkippedBody()); 692 Record.push_back(D->isMultiVersion()); 693 Record.push_back(D->isLateTemplateParsed()); 694 Record.push_back(D->FriendConstraintRefersToEnclosingTemplate()); 695 Record.push_back(D->getLinkageInternal()); 696 Record.AddSourceLocation(D->getEndLoc()); 697 Record.AddSourceLocation(D->getDefaultLoc()); 698 699 Record.push_back(D->getODRHash()); 700 701 if (D->isDefaulted()) { 702 if (auto *FDI = D->getDefaultedFunctionInfo()) { 703 Record.push_back(FDI->getUnqualifiedLookups().size()); 704 for (DeclAccessPair P : FDI->getUnqualifiedLookups()) { 705 Record.AddDeclRef(P.getDecl()); 706 Record.push_back(P.getAccess()); 707 } 708 } else { 709 Record.push_back(0); 710 } 711 } 712 713 Record.push_back(D->param_size()); 714 for (auto *P : D->parameters()) 715 Record.AddDeclRef(P); 716 Code = serialization::DECL_FUNCTION; 717 } 718 719 static void addExplicitSpecifier(ExplicitSpecifier ES, 720 ASTRecordWriter &Record) { 721 uint64_t Kind = static_cast<uint64_t>(ES.getKind()); 722 Kind = Kind << 1 | static_cast<bool>(ES.getExpr()); 723 Record.push_back(Kind); 724 if (ES.getExpr()) { 725 Record.AddStmt(ES.getExpr()); 726 } 727 } 728 729 void ASTDeclWriter::VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D) { 730 addExplicitSpecifier(D->getExplicitSpecifier(), Record); 731 Record.AddDeclRef(D->Ctor); 732 VisitFunctionDecl(D); 733 Record.push_back(static_cast<unsigned char>(D->getDeductionCandidateKind())); 734 Code = serialization::DECL_CXX_DEDUCTION_GUIDE; 735 } 736 737 void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) { 738 static_assert(DeclContext::NumObjCMethodDeclBits == 24, 739 "You need to update the serializer after you change the " 740 "ObjCMethodDeclBits"); 741 742 VisitNamedDecl(D); 743 // FIXME: convert to LazyStmtPtr? 744 // Unlike C/C++, method bodies will never be in header files. 745 bool HasBodyStuff = D->getBody() != nullptr; 746 Record.push_back(HasBodyStuff); 747 if (HasBodyStuff) { 748 Record.AddStmt(D->getBody()); 749 } 750 Record.AddDeclRef(D->getSelfDecl()); 751 Record.AddDeclRef(D->getCmdDecl()); 752 Record.push_back(D->isInstanceMethod()); 753 Record.push_back(D->isVariadic()); 754 Record.push_back(D->isPropertyAccessor()); 755 Record.push_back(D->isSynthesizedAccessorStub()); 756 Record.push_back(D->isDefined()); 757 Record.push_back(D->isOverriding()); 758 Record.push_back(D->hasSkippedBody()); 759 760 Record.push_back(D->isRedeclaration()); 761 Record.push_back(D->hasRedeclaration()); 762 if (D->hasRedeclaration()) { 763 assert(Context.getObjCMethodRedeclaration(D)); 764 Record.AddDeclRef(Context.getObjCMethodRedeclaration(D)); 765 } 766 767 // FIXME: stable encoding for @required/@optional 768 Record.push_back(D->getImplementationControl()); 769 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway/nullability 770 Record.push_back(D->getObjCDeclQualifier()); 771 Record.push_back(D->hasRelatedResultType()); 772 Record.AddTypeRef(D->getReturnType()); 773 Record.AddTypeSourceInfo(D->getReturnTypeSourceInfo()); 774 Record.AddSourceLocation(D->getEndLoc()); 775 Record.push_back(D->param_size()); 776 for (const auto *P : D->parameters()) 777 Record.AddDeclRef(P); 778 779 Record.push_back(D->getSelLocsKind()); 780 unsigned NumStoredSelLocs = D->getNumStoredSelLocs(); 781 SourceLocation *SelLocs = D->getStoredSelLocs(); 782 Record.push_back(NumStoredSelLocs); 783 for (unsigned i = 0; i != NumStoredSelLocs; ++i) 784 Record.AddSourceLocation(SelLocs[i]); 785 786 Code = serialization::DECL_OBJC_METHOD; 787 } 788 789 void ASTDeclWriter::VisitObjCTypeParamDecl(ObjCTypeParamDecl *D) { 790 VisitTypedefNameDecl(D); 791 Record.push_back(D->Variance); 792 Record.push_back(D->Index); 793 Record.AddSourceLocation(D->VarianceLoc); 794 Record.AddSourceLocation(D->ColonLoc); 795 796 Code = serialization::DECL_OBJC_TYPE_PARAM; 797 } 798 799 void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) { 800 static_assert(DeclContext::NumObjCContainerDeclBits == 51, 801 "You need to update the serializer after you change the " 802 "ObjCContainerDeclBits"); 803 804 VisitNamedDecl(D); 805 Record.AddSourceLocation(D->getAtStartLoc()); 806 Record.AddSourceRange(D->getAtEndRange()); 807 // Abstract class (no need to define a stable serialization::DECL code). 808 } 809 810 void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) { 811 VisitRedeclarable(D); 812 VisitObjCContainerDecl(D); 813 Record.AddTypeRef(QualType(D->getTypeForDecl(), 0)); 814 AddObjCTypeParamList(D->TypeParamList); 815 816 Record.push_back(D->isThisDeclarationADefinition()); 817 if (D->isThisDeclarationADefinition()) { 818 // Write the DefinitionData 819 ObjCInterfaceDecl::DefinitionData &Data = D->data(); 820 821 Record.AddTypeSourceInfo(D->getSuperClassTInfo()); 822 Record.AddSourceLocation(D->getEndOfDefinitionLoc()); 823 Record.push_back(Data.HasDesignatedInitializers); 824 Record.push_back(D->getODRHash()); 825 826 // Write out the protocols that are directly referenced by the @interface. 827 Record.push_back(Data.ReferencedProtocols.size()); 828 for (const auto *P : D->protocols()) 829 Record.AddDeclRef(P); 830 for (const auto &PL : D->protocol_locs()) 831 Record.AddSourceLocation(PL); 832 833 // Write out the protocols that are transitively referenced. 834 Record.push_back(Data.AllReferencedProtocols.size()); 835 for (ObjCList<ObjCProtocolDecl>::iterator 836 P = Data.AllReferencedProtocols.begin(), 837 PEnd = Data.AllReferencedProtocols.end(); 838 P != PEnd; ++P) 839 Record.AddDeclRef(*P); 840 841 842 if (ObjCCategoryDecl *Cat = D->getCategoryListRaw()) { 843 // Ensure that we write out the set of categories for this class. 844 Writer.ObjCClassesWithCategories.insert(D); 845 846 // Make sure that the categories get serialized. 847 for (; Cat; Cat = Cat->getNextClassCategoryRaw()) 848 (void)Writer.GetDeclRef(Cat); 849 } 850 } 851 852 Code = serialization::DECL_OBJC_INTERFACE; 853 } 854 855 void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) { 856 VisitFieldDecl(D); 857 // FIXME: stable encoding for @public/@private/@protected/@package 858 Record.push_back(D->getAccessControl()); 859 Record.push_back(D->getSynthesize()); 860 861 if (D->getDeclContext() == D->getLexicalDeclContext() && 862 !D->hasAttrs() && 863 !D->isImplicit() && 864 !D->isUsed(false) && 865 !D->isInvalidDecl() && 866 !D->isReferenced() && 867 !D->isModulePrivate() && 868 !D->getBitWidth() && 869 !D->hasExtInfo() && 870 D->getDeclName()) 871 AbbrevToUse = Writer.getDeclObjCIvarAbbrev(); 872 873 Code = serialization::DECL_OBJC_IVAR; 874 } 875 876 void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) { 877 VisitRedeclarable(D); 878 VisitObjCContainerDecl(D); 879 880 Record.push_back(D->isThisDeclarationADefinition()); 881 if (D->isThisDeclarationADefinition()) { 882 Record.push_back(D->protocol_size()); 883 for (const auto *I : D->protocols()) 884 Record.AddDeclRef(I); 885 for (const auto &PL : D->protocol_locs()) 886 Record.AddSourceLocation(PL); 887 Record.push_back(D->getODRHash()); 888 } 889 890 Code = serialization::DECL_OBJC_PROTOCOL; 891 } 892 893 void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) { 894 VisitFieldDecl(D); 895 Code = serialization::DECL_OBJC_AT_DEFS_FIELD; 896 } 897 898 void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) { 899 VisitObjCContainerDecl(D); 900 Record.AddSourceLocation(D->getCategoryNameLoc()); 901 Record.AddSourceLocation(D->getIvarLBraceLoc()); 902 Record.AddSourceLocation(D->getIvarRBraceLoc()); 903 Record.AddDeclRef(D->getClassInterface()); 904 AddObjCTypeParamList(D->TypeParamList); 905 Record.push_back(D->protocol_size()); 906 for (const auto *I : D->protocols()) 907 Record.AddDeclRef(I); 908 for (const auto &PL : D->protocol_locs()) 909 Record.AddSourceLocation(PL); 910 Code = serialization::DECL_OBJC_CATEGORY; 911 } 912 913 void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) { 914 VisitNamedDecl(D); 915 Record.AddDeclRef(D->getClassInterface()); 916 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS; 917 } 918 919 void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) { 920 VisitNamedDecl(D); 921 Record.AddSourceLocation(D->getAtLoc()); 922 Record.AddSourceLocation(D->getLParenLoc()); 923 Record.AddTypeRef(D->getType()); 924 Record.AddTypeSourceInfo(D->getTypeSourceInfo()); 925 // FIXME: stable encoding 926 Record.push_back((unsigned)D->getPropertyAttributes()); 927 Record.push_back((unsigned)D->getPropertyAttributesAsWritten()); 928 // FIXME: stable encoding 929 Record.push_back((unsigned)D->getPropertyImplementation()); 930 Record.AddDeclarationName(D->getGetterName()); 931 Record.AddSourceLocation(D->getGetterNameLoc()); 932 Record.AddDeclarationName(D->getSetterName()); 933 Record.AddSourceLocation(D->getSetterNameLoc()); 934 Record.AddDeclRef(D->getGetterMethodDecl()); 935 Record.AddDeclRef(D->getSetterMethodDecl()); 936 Record.AddDeclRef(D->getPropertyIvarDecl()); 937 Code = serialization::DECL_OBJC_PROPERTY; 938 } 939 940 void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) { 941 VisitObjCContainerDecl(D); 942 Record.AddDeclRef(D->getClassInterface()); 943 // Abstract class (no need to define a stable serialization::DECL code). 944 } 945 946 void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { 947 VisitObjCImplDecl(D); 948 Record.AddSourceLocation(D->getCategoryNameLoc()); 949 Code = serialization::DECL_OBJC_CATEGORY_IMPL; 950 } 951 952 void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { 953 VisitObjCImplDecl(D); 954 Record.AddDeclRef(D->getSuperClass()); 955 Record.AddSourceLocation(D->getSuperClassLoc()); 956 Record.AddSourceLocation(D->getIvarLBraceLoc()); 957 Record.AddSourceLocation(D->getIvarRBraceLoc()); 958 Record.push_back(D->hasNonZeroConstructors()); 959 Record.push_back(D->hasDestructors()); 960 Record.push_back(D->NumIvarInitializers); 961 if (D->NumIvarInitializers) 962 Record.AddCXXCtorInitializers( 963 llvm::ArrayRef(D->init_begin(), D->init_end())); 964 Code = serialization::DECL_OBJC_IMPLEMENTATION; 965 } 966 967 void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) { 968 VisitDecl(D); 969 Record.AddSourceLocation(D->getBeginLoc()); 970 Record.AddDeclRef(D->getPropertyDecl()); 971 Record.AddDeclRef(D->getPropertyIvarDecl()); 972 Record.AddSourceLocation(D->getPropertyIvarDeclLoc()); 973 Record.AddDeclRef(D->getGetterMethodDecl()); 974 Record.AddDeclRef(D->getSetterMethodDecl()); 975 Record.AddStmt(D->getGetterCXXConstructor()); 976 Record.AddStmt(D->getSetterCXXAssignment()); 977 Code = serialization::DECL_OBJC_PROPERTY_IMPL; 978 } 979 980 void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) { 981 VisitDeclaratorDecl(D); 982 Record.push_back(D->isMutable()); 983 984 Record.push_back((D->StorageKind << 1) | D->BitField); 985 if (D->StorageKind == FieldDecl::ISK_CapturedVLAType) 986 Record.AddTypeRef(QualType(D->getCapturedVLAType(), 0)); 987 else if (D->BitField) 988 Record.AddStmt(D->getBitWidth()); 989 990 if (!D->getDeclName()) 991 Record.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D)); 992 993 if (D->getDeclContext() == D->getLexicalDeclContext() && 994 !D->hasAttrs() && 995 !D->isImplicit() && 996 !D->isUsed(false) && 997 !D->isInvalidDecl() && 998 !D->isReferenced() && 999 !D->isTopLevelDeclInObjCContainer() && 1000 !D->isModulePrivate() && 1001 !D->getBitWidth() && 1002 !D->hasInClassInitializer() && 1003 !D->hasCapturedVLAType() && 1004 !D->hasExtInfo() && 1005 !ObjCIvarDecl::classofKind(D->getKind()) && 1006 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) && 1007 D->getDeclName()) 1008 AbbrevToUse = Writer.getDeclFieldAbbrev(); 1009 1010 Code = serialization::DECL_FIELD; 1011 } 1012 1013 void ASTDeclWriter::VisitMSPropertyDecl(MSPropertyDecl *D) { 1014 VisitDeclaratorDecl(D); 1015 Record.AddIdentifierRef(D->getGetterId()); 1016 Record.AddIdentifierRef(D->getSetterId()); 1017 Code = serialization::DECL_MS_PROPERTY; 1018 } 1019 1020 void ASTDeclWriter::VisitMSGuidDecl(MSGuidDecl *D) { 1021 VisitValueDecl(D); 1022 MSGuidDecl::Parts Parts = D->getParts(); 1023 Record.push_back(Parts.Part1); 1024 Record.push_back(Parts.Part2); 1025 Record.push_back(Parts.Part3); 1026 Record.append(std::begin(Parts.Part4And5), std::end(Parts.Part4And5)); 1027 Code = serialization::DECL_MS_GUID; 1028 } 1029 1030 void ASTDeclWriter::VisitUnnamedGlobalConstantDecl( 1031 UnnamedGlobalConstantDecl *D) { 1032 VisitValueDecl(D); 1033 Record.AddAPValue(D->getValue()); 1034 Code = serialization::DECL_UNNAMED_GLOBAL_CONSTANT; 1035 } 1036 1037 void ASTDeclWriter::VisitTemplateParamObjectDecl(TemplateParamObjectDecl *D) { 1038 VisitValueDecl(D); 1039 Record.AddAPValue(D->getValue()); 1040 Code = serialization::DECL_TEMPLATE_PARAM_OBJECT; 1041 } 1042 1043 void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) { 1044 VisitValueDecl(D); 1045 Record.push_back(D->getChainingSize()); 1046 1047 for (const auto *P : D->chain()) 1048 Record.AddDeclRef(P); 1049 Code = serialization::DECL_INDIRECTFIELD; 1050 } 1051 1052 void ASTDeclWriter::VisitVarDecl(VarDecl *D) { 1053 VisitRedeclarable(D); 1054 VisitDeclaratorDecl(D); 1055 Record.push_back(D->getStorageClass()); 1056 Record.push_back(D->getTSCSpec()); 1057 Record.push_back(D->getInitStyle()); 1058 Record.push_back(D->isARCPseudoStrong()); 1059 bool HasDeducedType = false; 1060 if (!isa<ParmVarDecl>(D)) { 1061 Record.push_back(D->isThisDeclarationADemotedDefinition()); 1062 Record.push_back(D->isExceptionVariable()); 1063 Record.push_back(D->isNRVOVariable()); 1064 Record.push_back(D->isCXXForRangeDecl()); 1065 Record.push_back(D->isObjCForDecl()); 1066 Record.push_back(D->isInline()); 1067 Record.push_back(D->isInlineSpecified()); 1068 Record.push_back(D->isConstexpr()); 1069 Record.push_back(D->isInitCapture()); 1070 Record.push_back(D->isPreviousDeclInSameBlockScope()); 1071 if (const auto *IPD = dyn_cast<ImplicitParamDecl>(D)) 1072 Record.push_back(static_cast<unsigned>(IPD->getParameterKind())); 1073 else 1074 Record.push_back(0); 1075 Record.push_back(D->isEscapingByref()); 1076 HasDeducedType = D->getType()->getContainedDeducedType(); 1077 Record.push_back(HasDeducedType); 1078 } 1079 Record.push_back(D->getLinkageInternal()); 1080 1081 if (D->hasAttr<BlocksAttr>()) { 1082 BlockVarCopyInit Init = Writer.Context->getBlockVarCopyInit(D); 1083 Record.AddStmt(Init.getCopyExpr()); 1084 if (Init.getCopyExpr()) 1085 Record.push_back(Init.canThrow()); 1086 } 1087 1088 bool ModulesCodegen = false; 1089 if (Writer.WritingModule && D->getStorageDuration() == SD_Static && 1090 !D->getDescribedVarTemplate()) { 1091 // When building a C++20 module interface unit or a partition unit, a 1092 // strong definition in the module interface is provided by the 1093 // compilation of that unit, not by its users. (Inline variables are still 1094 // emitted in module users.) 1095 ModulesCodegen = 1096 (Writer.WritingModule->isInterfaceOrPartition() || 1097 (D->hasAttr<DLLExportAttr>() && 1098 Writer.Context->getLangOpts().BuildingPCHWithObjectFile)) && 1099 Writer.Context->GetGVALinkageForVariable(D) >= GVA_StrongExternal; 1100 } 1101 Record.push_back(ModulesCodegen); 1102 if (ModulesCodegen) 1103 Writer.ModularCodegenDecls.push_back(Writer.GetDeclRef(D)); 1104 1105 enum { 1106 VarNotTemplate = 0, VarTemplate, StaticDataMemberSpecialization 1107 }; 1108 if (VarTemplateDecl *TemplD = D->getDescribedVarTemplate()) { 1109 Record.push_back(VarTemplate); 1110 Record.AddDeclRef(TemplD); 1111 } else if (MemberSpecializationInfo *SpecInfo 1112 = D->getMemberSpecializationInfo()) { 1113 Record.push_back(StaticDataMemberSpecialization); 1114 Record.AddDeclRef(SpecInfo->getInstantiatedFrom()); 1115 Record.push_back(SpecInfo->getTemplateSpecializationKind()); 1116 Record.AddSourceLocation(SpecInfo->getPointOfInstantiation()); 1117 } else { 1118 Record.push_back(VarNotTemplate); 1119 } 1120 1121 if (D->getDeclContext() == D->getLexicalDeclContext() && 1122 !D->hasAttrs() && 1123 !D->isImplicit() && 1124 !D->isUsed(false) && 1125 !D->isInvalidDecl() && 1126 !D->isReferenced() && 1127 !D->isTopLevelDeclInObjCContainer() && 1128 D->getAccess() == AS_none && 1129 !D->isModulePrivate() && 1130 !needsAnonymousDeclarationNumber(D) && 1131 D->getDeclName().getNameKind() == DeclarationName::Identifier && 1132 !D->hasExtInfo() && 1133 D->getFirstDecl() == D->getMostRecentDecl() && 1134 D->getKind() == Decl::Var && 1135 !D->isInline() && 1136 !D->isConstexpr() && 1137 !D->isInitCapture() && 1138 !D->isPreviousDeclInSameBlockScope() && 1139 !D->isEscapingByref() && 1140 !HasDeducedType && 1141 D->getStorageDuration() != SD_Static && 1142 !D->getDescribedVarTemplate() && 1143 !D->getMemberSpecializationInfo()) 1144 AbbrevToUse = Writer.getDeclVarAbbrev(); 1145 1146 Code = serialization::DECL_VAR; 1147 } 1148 1149 void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) { 1150 VisitVarDecl(D); 1151 Code = serialization::DECL_IMPLICIT_PARAM; 1152 } 1153 1154 void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) { 1155 VisitVarDecl(D); 1156 Record.push_back(D->isObjCMethodParameter()); 1157 Record.push_back(D->getFunctionScopeDepth()); 1158 Record.push_back(D->getFunctionScopeIndex()); 1159 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding 1160 Record.push_back(D->isKNRPromoted()); 1161 Record.push_back(D->hasInheritedDefaultArg()); 1162 Record.push_back(D->hasUninstantiatedDefaultArg()); 1163 if (D->hasUninstantiatedDefaultArg()) 1164 Record.AddStmt(D->getUninstantiatedDefaultArg()); 1165 Code = serialization::DECL_PARM_VAR; 1166 1167 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here 1168 // we dynamically check for the properties that we optimize for, but don't 1169 // know are true of all PARM_VAR_DECLs. 1170 if (D->getDeclContext() == D->getLexicalDeclContext() && 1171 !D->hasAttrs() && 1172 !D->hasExtInfo() && 1173 !D->isImplicit() && 1174 !D->isUsed(false) && 1175 !D->isInvalidDecl() && 1176 !D->isReferenced() && 1177 D->getAccess() == AS_none && 1178 !D->isModulePrivate() && 1179 D->getStorageClass() == 0 && 1180 D->getInitStyle() == VarDecl::CInit && // Can params have anything else? 1181 D->getFunctionScopeDepth() == 0 && 1182 D->getObjCDeclQualifier() == 0 && 1183 !D->isKNRPromoted() && 1184 !D->hasInheritedDefaultArg() && 1185 D->getInit() == nullptr && 1186 !D->hasUninstantiatedDefaultArg()) // No default expr. 1187 AbbrevToUse = Writer.getDeclParmVarAbbrev(); 1188 1189 // Check things we know are true of *every* PARM_VAR_DECL, which is more than 1190 // just us assuming it. 1191 assert(!D->getTSCSpec() && "PARM_VAR_DECL can't use TLS"); 1192 assert(!D->isThisDeclarationADemotedDefinition() 1193 && "PARM_VAR_DECL can't be demoted definition."); 1194 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private"); 1195 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var"); 1196 assert(D->getPreviousDecl() == nullptr && "PARM_VAR_DECL can't be redecl"); 1197 assert(!D->isStaticDataMember() && 1198 "PARM_VAR_DECL can't be static data member"); 1199 } 1200 1201 void ASTDeclWriter::VisitDecompositionDecl(DecompositionDecl *D) { 1202 // Record the number of bindings first to simplify deserialization. 1203 Record.push_back(D->bindings().size()); 1204 1205 VisitVarDecl(D); 1206 for (auto *B : D->bindings()) 1207 Record.AddDeclRef(B); 1208 Code = serialization::DECL_DECOMPOSITION; 1209 } 1210 1211 void ASTDeclWriter::VisitBindingDecl(BindingDecl *D) { 1212 VisitValueDecl(D); 1213 Record.AddStmt(D->getBinding()); 1214 Code = serialization::DECL_BINDING; 1215 } 1216 1217 void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { 1218 VisitDecl(D); 1219 Record.AddStmt(D->getAsmString()); 1220 Record.AddSourceLocation(D->getRParenLoc()); 1221 Code = serialization::DECL_FILE_SCOPE_ASM; 1222 } 1223 1224 void ASTDeclWriter::VisitTopLevelStmtDecl(TopLevelStmtDecl *D) { 1225 VisitDecl(D); 1226 Record.AddStmt(D->getStmt()); 1227 Code = serialization::DECL_TOP_LEVEL_STMT_DECL; 1228 } 1229 1230 void ASTDeclWriter::VisitEmptyDecl(EmptyDecl *D) { 1231 VisitDecl(D); 1232 Code = serialization::DECL_EMPTY; 1233 } 1234 1235 void ASTDeclWriter::VisitLifetimeExtendedTemporaryDecl( 1236 LifetimeExtendedTemporaryDecl *D) { 1237 VisitDecl(D); 1238 Record.AddDeclRef(D->getExtendingDecl()); 1239 Record.AddStmt(D->getTemporaryExpr()); 1240 Record.push_back(static_cast<bool>(D->getValue())); 1241 if (D->getValue()) 1242 Record.AddAPValue(*D->getValue()); 1243 Record.push_back(D->getManglingNumber()); 1244 Code = serialization::DECL_LIFETIME_EXTENDED_TEMPORARY; 1245 } 1246 void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) { 1247 VisitDecl(D); 1248 Record.AddStmt(D->getBody()); 1249 Record.AddTypeSourceInfo(D->getSignatureAsWritten()); 1250 Record.push_back(D->param_size()); 1251 for (ParmVarDecl *P : D->parameters()) 1252 Record.AddDeclRef(P); 1253 Record.push_back(D->isVariadic()); 1254 Record.push_back(D->blockMissingReturnType()); 1255 Record.push_back(D->isConversionFromLambda()); 1256 Record.push_back(D->doesNotEscape()); 1257 Record.push_back(D->canAvoidCopyToHeap()); 1258 Record.push_back(D->capturesCXXThis()); 1259 Record.push_back(D->getNumCaptures()); 1260 for (const auto &capture : D->captures()) { 1261 Record.AddDeclRef(capture.getVariable()); 1262 1263 unsigned flags = 0; 1264 if (capture.isByRef()) flags |= 1; 1265 if (capture.isNested()) flags |= 2; 1266 if (capture.hasCopyExpr()) flags |= 4; 1267 Record.push_back(flags); 1268 1269 if (capture.hasCopyExpr()) Record.AddStmt(capture.getCopyExpr()); 1270 } 1271 1272 Code = serialization::DECL_BLOCK; 1273 } 1274 1275 void ASTDeclWriter::VisitCapturedDecl(CapturedDecl *CD) { 1276 Record.push_back(CD->getNumParams()); 1277 VisitDecl(CD); 1278 Record.push_back(CD->getContextParamPosition()); 1279 Record.push_back(CD->isNothrow() ? 1 : 0); 1280 // Body is stored by VisitCapturedStmt. 1281 for (unsigned I = 0; I < CD->getNumParams(); ++I) 1282 Record.AddDeclRef(CD->getParam(I)); 1283 Code = serialization::DECL_CAPTURED; 1284 } 1285 1286 void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 1287 static_assert(DeclContext::NumLinkageSpecDeclBits == 4, 1288 "You need to update the serializer after you change the" 1289 "LinkageSpecDeclBits"); 1290 1291 VisitDecl(D); 1292 Record.push_back(D->getLanguage()); 1293 Record.AddSourceLocation(D->getExternLoc()); 1294 Record.AddSourceLocation(D->getRBraceLoc()); 1295 Code = serialization::DECL_LINKAGE_SPEC; 1296 } 1297 1298 void ASTDeclWriter::VisitExportDecl(ExportDecl *D) { 1299 VisitDecl(D); 1300 Record.AddSourceLocation(D->getRBraceLoc()); 1301 Code = serialization::DECL_EXPORT; 1302 } 1303 1304 void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) { 1305 VisitNamedDecl(D); 1306 Record.AddSourceLocation(D->getBeginLoc()); 1307 Code = serialization::DECL_LABEL; 1308 } 1309 1310 1311 void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) { 1312 VisitRedeclarable(D); 1313 VisitNamedDecl(D); 1314 Record.push_back(D->isInline()); 1315 Record.push_back(D->isNested()); 1316 Record.AddSourceLocation(D->getBeginLoc()); 1317 Record.AddSourceLocation(D->getRBraceLoc()); 1318 1319 if (D->isOriginalNamespace()) 1320 Record.AddDeclRef(D->getAnonymousNamespace()); 1321 Code = serialization::DECL_NAMESPACE; 1322 1323 if (Writer.hasChain() && D->isAnonymousNamespace() && 1324 D == D->getMostRecentDecl()) { 1325 // This is a most recent reopening of the anonymous namespace. If its parent 1326 // is in a previous PCH (or is the TU), mark that parent for update, because 1327 // the original namespace always points to the latest re-opening of its 1328 // anonymous namespace. 1329 Decl *Parent = cast<Decl>( 1330 D->getParent()->getRedeclContext()->getPrimaryContext()); 1331 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) { 1332 Writer.DeclUpdates[Parent].push_back( 1333 ASTWriter::DeclUpdate(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE, D)); 1334 } 1335 } 1336 } 1337 1338 void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 1339 VisitRedeclarable(D); 1340 VisitNamedDecl(D); 1341 Record.AddSourceLocation(D->getNamespaceLoc()); 1342 Record.AddSourceLocation(D->getTargetNameLoc()); 1343 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc()); 1344 Record.AddDeclRef(D->getNamespace()); 1345 Code = serialization::DECL_NAMESPACE_ALIAS; 1346 } 1347 1348 void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) { 1349 VisitNamedDecl(D); 1350 Record.AddSourceLocation(D->getUsingLoc()); 1351 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc()); 1352 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName()); 1353 Record.AddDeclRef(D->FirstUsingShadow.getPointer()); 1354 Record.push_back(D->hasTypename()); 1355 Record.AddDeclRef(Context.getInstantiatedFromUsingDecl(D)); 1356 Code = serialization::DECL_USING; 1357 } 1358 1359 void ASTDeclWriter::VisitUsingEnumDecl(UsingEnumDecl *D) { 1360 VisitNamedDecl(D); 1361 Record.AddSourceLocation(D->getUsingLoc()); 1362 Record.AddSourceLocation(D->getEnumLoc()); 1363 Record.AddTypeSourceInfo(D->getEnumType()); 1364 Record.AddDeclRef(D->FirstUsingShadow.getPointer()); 1365 Record.AddDeclRef(Context.getInstantiatedFromUsingEnumDecl(D)); 1366 Code = serialization::DECL_USING_ENUM; 1367 } 1368 1369 void ASTDeclWriter::VisitUsingPackDecl(UsingPackDecl *D) { 1370 Record.push_back(D->NumExpansions); 1371 VisitNamedDecl(D); 1372 Record.AddDeclRef(D->getInstantiatedFromUsingDecl()); 1373 for (auto *E : D->expansions()) 1374 Record.AddDeclRef(E); 1375 Code = serialization::DECL_USING_PACK; 1376 } 1377 1378 void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) { 1379 VisitRedeclarable(D); 1380 VisitNamedDecl(D); 1381 Record.AddDeclRef(D->getTargetDecl()); 1382 Record.push_back(D->getIdentifierNamespace()); 1383 Record.AddDeclRef(D->UsingOrNextShadow); 1384 Record.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D)); 1385 Code = serialization::DECL_USING_SHADOW; 1386 } 1387 1388 void ASTDeclWriter::VisitConstructorUsingShadowDecl( 1389 ConstructorUsingShadowDecl *D) { 1390 VisitUsingShadowDecl(D); 1391 Record.AddDeclRef(D->NominatedBaseClassShadowDecl); 1392 Record.AddDeclRef(D->ConstructedBaseClassShadowDecl); 1393 Record.push_back(D->IsVirtual); 1394 Code = serialization::DECL_CONSTRUCTOR_USING_SHADOW; 1395 } 1396 1397 void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 1398 VisitNamedDecl(D); 1399 Record.AddSourceLocation(D->getUsingLoc()); 1400 Record.AddSourceLocation(D->getNamespaceKeyLocation()); 1401 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc()); 1402 Record.AddDeclRef(D->getNominatedNamespace()); 1403 Record.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor())); 1404 Code = serialization::DECL_USING_DIRECTIVE; 1405 } 1406 1407 void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 1408 VisitValueDecl(D); 1409 Record.AddSourceLocation(D->getUsingLoc()); 1410 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc()); 1411 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName()); 1412 Record.AddSourceLocation(D->getEllipsisLoc()); 1413 Code = serialization::DECL_UNRESOLVED_USING_VALUE; 1414 } 1415 1416 void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl( 1417 UnresolvedUsingTypenameDecl *D) { 1418 VisitTypeDecl(D); 1419 Record.AddSourceLocation(D->getTypenameLoc()); 1420 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc()); 1421 Record.AddSourceLocation(D->getEllipsisLoc()); 1422 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME; 1423 } 1424 1425 void ASTDeclWriter::VisitUnresolvedUsingIfExistsDecl( 1426 UnresolvedUsingIfExistsDecl *D) { 1427 VisitNamedDecl(D); 1428 Code = serialization::DECL_UNRESOLVED_USING_IF_EXISTS; 1429 } 1430 1431 void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) { 1432 VisitRecordDecl(D); 1433 1434 enum { 1435 CXXRecNotTemplate = 0, 1436 CXXRecTemplate, 1437 CXXRecMemberSpecialization, 1438 CXXLambda 1439 }; 1440 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) { 1441 Record.push_back(CXXRecTemplate); 1442 Record.AddDeclRef(TemplD); 1443 } else if (MemberSpecializationInfo *MSInfo 1444 = D->getMemberSpecializationInfo()) { 1445 Record.push_back(CXXRecMemberSpecialization); 1446 Record.AddDeclRef(MSInfo->getInstantiatedFrom()); 1447 Record.push_back(MSInfo->getTemplateSpecializationKind()); 1448 Record.AddSourceLocation(MSInfo->getPointOfInstantiation()); 1449 } else if (D->isLambda()) { 1450 // For a lambda, we need some information early for merging. 1451 Record.push_back(CXXLambda); 1452 if (auto *Context = D->getLambdaContextDecl()) { 1453 Record.AddDeclRef(Context); 1454 Record.push_back(D->getLambdaIndexInContext()); 1455 } else { 1456 Record.push_back(0); 1457 } 1458 } else { 1459 Record.push_back(CXXRecNotTemplate); 1460 } 1461 1462 Record.push_back(D->isThisDeclarationADefinition()); 1463 if (D->isThisDeclarationADefinition()) 1464 Record.AddCXXDefinitionData(D); 1465 1466 // Store (what we currently believe to be) the key function to avoid 1467 // deserializing every method so we can compute it. 1468 if (D->isCompleteDefinition()) 1469 Record.AddDeclRef(Context.getCurrentKeyFunction(D)); 1470 1471 Code = serialization::DECL_CXX_RECORD; 1472 } 1473 1474 void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) { 1475 VisitFunctionDecl(D); 1476 if (D->isCanonicalDecl()) { 1477 Record.push_back(D->size_overridden_methods()); 1478 for (const CXXMethodDecl *MD : D->overridden_methods()) 1479 Record.AddDeclRef(MD); 1480 } else { 1481 // We only need to record overridden methods once for the canonical decl. 1482 Record.push_back(0); 1483 } 1484 1485 if (D->getDeclContext() == D->getLexicalDeclContext() && 1486 D->getFirstDecl() == D->getMostRecentDecl() && !D->isInvalidDecl() && 1487 !D->hasAttrs() && !D->isTopLevelDeclInObjCContainer() && 1488 D->getDeclName().getNameKind() == DeclarationName::Identifier && 1489 !D->hasExtInfo() && !D->hasInheritedPrototype() && 1490 D->hasWrittenPrototype() && 1491 D->getTemplatedKind() == FunctionDecl::TK_NonTemplate) 1492 AbbrevToUse = Writer.getDeclCXXMethodAbbrev(); 1493 1494 Code = serialization::DECL_CXX_METHOD; 1495 } 1496 1497 void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) { 1498 static_assert(DeclContext::NumCXXConstructorDeclBits == 20, 1499 "You need to update the serializer after you change the " 1500 "CXXConstructorDeclBits"); 1501 1502 Record.push_back(D->getTrailingAllocKind()); 1503 addExplicitSpecifier(D->getExplicitSpecifier(), Record); 1504 if (auto Inherited = D->getInheritedConstructor()) { 1505 Record.AddDeclRef(Inherited.getShadowDecl()); 1506 Record.AddDeclRef(Inherited.getConstructor()); 1507 } 1508 1509 VisitCXXMethodDecl(D); 1510 Code = serialization::DECL_CXX_CONSTRUCTOR; 1511 } 1512 1513 void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) { 1514 VisitCXXMethodDecl(D); 1515 1516 Record.AddDeclRef(D->getOperatorDelete()); 1517 if (D->getOperatorDelete()) 1518 Record.AddStmt(D->getOperatorDeleteThisArg()); 1519 1520 Code = serialization::DECL_CXX_DESTRUCTOR; 1521 } 1522 1523 void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) { 1524 addExplicitSpecifier(D->getExplicitSpecifier(), Record); 1525 VisitCXXMethodDecl(D); 1526 Code = serialization::DECL_CXX_CONVERSION; 1527 } 1528 1529 void ASTDeclWriter::VisitImportDecl(ImportDecl *D) { 1530 VisitDecl(D); 1531 Record.push_back(Writer.getSubmoduleID(D->getImportedModule())); 1532 ArrayRef<SourceLocation> IdentifierLocs = D->getIdentifierLocs(); 1533 Record.push_back(!IdentifierLocs.empty()); 1534 if (IdentifierLocs.empty()) { 1535 Record.AddSourceLocation(D->getEndLoc()); 1536 Record.push_back(1); 1537 } else { 1538 for (unsigned I = 0, N = IdentifierLocs.size(); I != N; ++I) 1539 Record.AddSourceLocation(IdentifierLocs[I]); 1540 Record.push_back(IdentifierLocs.size()); 1541 } 1542 // Note: the number of source locations must always be the last element in 1543 // the record. 1544 Code = serialization::DECL_IMPORT; 1545 } 1546 1547 void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) { 1548 VisitDecl(D); 1549 Record.AddSourceLocation(D->getColonLoc()); 1550 Code = serialization::DECL_ACCESS_SPEC; 1551 } 1552 1553 void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) { 1554 // Record the number of friend type template parameter lists here 1555 // so as to simplify memory allocation during deserialization. 1556 Record.push_back(D->NumTPLists); 1557 VisitDecl(D); 1558 bool hasFriendDecl = D->Friend.is<NamedDecl*>(); 1559 Record.push_back(hasFriendDecl); 1560 if (hasFriendDecl) 1561 Record.AddDeclRef(D->getFriendDecl()); 1562 else 1563 Record.AddTypeSourceInfo(D->getFriendType()); 1564 for (unsigned i = 0; i < D->NumTPLists; ++i) 1565 Record.AddTemplateParameterList(D->getFriendTypeTemplateParameterList(i)); 1566 Record.AddDeclRef(D->getNextFriend()); 1567 Record.push_back(D->UnsupportedFriend); 1568 Record.AddSourceLocation(D->FriendLoc); 1569 Code = serialization::DECL_FRIEND; 1570 } 1571 1572 void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) { 1573 VisitDecl(D); 1574 Record.push_back(D->getNumTemplateParameters()); 1575 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i) 1576 Record.AddTemplateParameterList(D->getTemplateParameterList(i)); 1577 Record.push_back(D->getFriendDecl() != nullptr); 1578 if (D->getFriendDecl()) 1579 Record.AddDeclRef(D->getFriendDecl()); 1580 else 1581 Record.AddTypeSourceInfo(D->getFriendType()); 1582 Record.AddSourceLocation(D->getFriendLoc()); 1583 Code = serialization::DECL_FRIEND_TEMPLATE; 1584 } 1585 1586 void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) { 1587 VisitNamedDecl(D); 1588 1589 Record.AddTemplateParameterList(D->getTemplateParameters()); 1590 Record.AddDeclRef(D->getTemplatedDecl()); 1591 } 1592 1593 void ASTDeclWriter::VisitConceptDecl(ConceptDecl *D) { 1594 VisitTemplateDecl(D); 1595 Record.AddStmt(D->getConstraintExpr()); 1596 Code = serialization::DECL_CONCEPT; 1597 } 1598 1599 void ASTDeclWriter::VisitImplicitConceptSpecializationDecl( 1600 ImplicitConceptSpecializationDecl *D) { 1601 Record.push_back(D->getTemplateArguments().size()); 1602 VisitDecl(D); 1603 for (const TemplateArgument &Arg : D->getTemplateArguments()) 1604 Record.AddTemplateArgument(Arg); 1605 Code = serialization::DECL_IMPLICIT_CONCEPT_SPECIALIZATION; 1606 } 1607 1608 void ASTDeclWriter::VisitRequiresExprBodyDecl(RequiresExprBodyDecl *D) { 1609 Code = serialization::DECL_REQUIRES_EXPR_BODY; 1610 } 1611 1612 void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) { 1613 VisitRedeclarable(D); 1614 1615 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that 1616 // getCommonPtr() can be used while this is still initializing. 1617 if (D->isFirstDecl()) { 1618 // This declaration owns the 'common' pointer, so serialize that data now. 1619 Record.AddDeclRef(D->getInstantiatedFromMemberTemplate()); 1620 if (D->getInstantiatedFromMemberTemplate()) 1621 Record.push_back(D->isMemberSpecialization()); 1622 } 1623 1624 VisitTemplateDecl(D); 1625 Record.push_back(D->getIdentifierNamespace()); 1626 } 1627 1628 void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) { 1629 VisitRedeclarableTemplateDecl(D); 1630 1631 if (D->isFirstDecl()) 1632 AddTemplateSpecializations(D); 1633 Code = serialization::DECL_CLASS_TEMPLATE; 1634 } 1635 1636 void ASTDeclWriter::VisitClassTemplateSpecializationDecl( 1637 ClassTemplateSpecializationDecl *D) { 1638 RegisterTemplateSpecialization(D->getSpecializedTemplate(), D); 1639 1640 VisitCXXRecordDecl(D); 1641 1642 llvm::PointerUnion<ClassTemplateDecl *, 1643 ClassTemplatePartialSpecializationDecl *> InstFrom 1644 = D->getSpecializedTemplateOrPartial(); 1645 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) { 1646 Record.AddDeclRef(InstFromD); 1647 } else { 1648 Record.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>()); 1649 Record.AddTemplateArgumentList(&D->getTemplateInstantiationArgs()); 1650 } 1651 1652 Record.AddTemplateArgumentList(&D->getTemplateArgs()); 1653 Record.AddSourceLocation(D->getPointOfInstantiation()); 1654 Record.push_back(D->getSpecializationKind()); 1655 Record.push_back(D->isCanonicalDecl()); 1656 1657 if (D->isCanonicalDecl()) { 1658 // When reading, we'll add it to the folding set of the following template. 1659 Record.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl()); 1660 } 1661 1662 // Explicit info. 1663 Record.AddTypeSourceInfo(D->getTypeAsWritten()); 1664 if (D->getTypeAsWritten()) { 1665 Record.AddSourceLocation(D->getExternLoc()); 1666 Record.AddSourceLocation(D->getTemplateKeywordLoc()); 1667 } 1668 1669 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION; 1670 } 1671 1672 void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl( 1673 ClassTemplatePartialSpecializationDecl *D) { 1674 Record.AddTemplateParameterList(D->getTemplateParameters()); 1675 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten()); 1676 1677 VisitClassTemplateSpecializationDecl(D); 1678 1679 // These are read/set from/to the first declaration. 1680 if (D->getPreviousDecl() == nullptr) { 1681 Record.AddDeclRef(D->getInstantiatedFromMember()); 1682 Record.push_back(D->isMemberSpecialization()); 1683 } 1684 1685 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION; 1686 } 1687 1688 void ASTDeclWriter::VisitVarTemplateDecl(VarTemplateDecl *D) { 1689 VisitRedeclarableTemplateDecl(D); 1690 1691 if (D->isFirstDecl()) 1692 AddTemplateSpecializations(D); 1693 Code = serialization::DECL_VAR_TEMPLATE; 1694 } 1695 1696 void ASTDeclWriter::VisitVarTemplateSpecializationDecl( 1697 VarTemplateSpecializationDecl *D) { 1698 RegisterTemplateSpecialization(D->getSpecializedTemplate(), D); 1699 1700 llvm::PointerUnion<VarTemplateDecl *, VarTemplatePartialSpecializationDecl *> 1701 InstFrom = D->getSpecializedTemplateOrPartial(); 1702 if (Decl *InstFromD = InstFrom.dyn_cast<VarTemplateDecl *>()) { 1703 Record.AddDeclRef(InstFromD); 1704 } else { 1705 Record.AddDeclRef(InstFrom.get<VarTemplatePartialSpecializationDecl *>()); 1706 Record.AddTemplateArgumentList(&D->getTemplateInstantiationArgs()); 1707 } 1708 1709 // Explicit info. 1710 Record.AddTypeSourceInfo(D->getTypeAsWritten()); 1711 if (D->getTypeAsWritten()) { 1712 Record.AddSourceLocation(D->getExternLoc()); 1713 Record.AddSourceLocation(D->getTemplateKeywordLoc()); 1714 } 1715 1716 Record.AddTemplateArgumentList(&D->getTemplateArgs()); 1717 Record.AddSourceLocation(D->getPointOfInstantiation()); 1718 Record.push_back(D->getSpecializationKind()); 1719 Record.push_back(D->IsCompleteDefinition); 1720 1721 VisitVarDecl(D); 1722 1723 Record.push_back(D->isCanonicalDecl()); 1724 1725 if (D->isCanonicalDecl()) { 1726 // When reading, we'll add it to the folding set of the following template. 1727 Record.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl()); 1728 } 1729 1730 Code = serialization::DECL_VAR_TEMPLATE_SPECIALIZATION; 1731 } 1732 1733 void ASTDeclWriter::VisitVarTemplatePartialSpecializationDecl( 1734 VarTemplatePartialSpecializationDecl *D) { 1735 Record.AddTemplateParameterList(D->getTemplateParameters()); 1736 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten()); 1737 1738 VisitVarTemplateSpecializationDecl(D); 1739 1740 // These are read/set from/to the first declaration. 1741 if (D->getPreviousDecl() == nullptr) { 1742 Record.AddDeclRef(D->getInstantiatedFromMember()); 1743 Record.push_back(D->isMemberSpecialization()); 1744 } 1745 1746 Code = serialization::DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION; 1747 } 1748 1749 void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl( 1750 ClassScopeFunctionSpecializationDecl *D) { 1751 VisitDecl(D); 1752 Record.AddDeclRef(D->getSpecialization()); 1753 Record.push_back(D->hasExplicitTemplateArgs()); 1754 if (D->hasExplicitTemplateArgs()) 1755 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten()); 1756 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION; 1757 } 1758 1759 1760 void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { 1761 VisitRedeclarableTemplateDecl(D); 1762 1763 if (D->isFirstDecl()) 1764 AddTemplateSpecializations(D); 1765 Code = serialization::DECL_FUNCTION_TEMPLATE; 1766 } 1767 1768 void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) { 1769 Record.push_back(D->hasTypeConstraint()); 1770 VisitTypeDecl(D); 1771 1772 Record.push_back(D->wasDeclaredWithTypename()); 1773 1774 const TypeConstraint *TC = D->getTypeConstraint(); 1775 Record.push_back(TC != nullptr); 1776 if (TC) { 1777 Record.AddNestedNameSpecifierLoc(TC->getNestedNameSpecifierLoc()); 1778 Record.AddDeclarationNameInfo(TC->getConceptNameInfo()); 1779 Record.AddDeclRef(TC->getNamedConcept()); 1780 Record.push_back(TC->getTemplateArgsAsWritten() != nullptr); 1781 if (TC->getTemplateArgsAsWritten()) 1782 Record.AddASTTemplateArgumentListInfo(TC->getTemplateArgsAsWritten()); 1783 Record.AddStmt(TC->getImmediatelyDeclaredConstraint()); 1784 Record.push_back(D->isExpandedParameterPack()); 1785 if (D->isExpandedParameterPack()) 1786 Record.push_back(D->getNumExpansionParameters()); 1787 } 1788 1789 bool OwnsDefaultArg = D->hasDefaultArgument() && 1790 !D->defaultArgumentWasInherited(); 1791 Record.push_back(OwnsDefaultArg); 1792 if (OwnsDefaultArg) 1793 Record.AddTypeSourceInfo(D->getDefaultArgumentInfo()); 1794 1795 Code = serialization::DECL_TEMPLATE_TYPE_PARM; 1796 } 1797 1798 void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) { 1799 // For an expanded parameter pack, record the number of expansion types here 1800 // so that it's easier for deserialization to allocate the right amount of 1801 // memory. 1802 Expr *TypeConstraint = D->getPlaceholderTypeConstraint(); 1803 Record.push_back(!!TypeConstraint); 1804 if (D->isExpandedParameterPack()) 1805 Record.push_back(D->getNumExpansionTypes()); 1806 1807 VisitDeclaratorDecl(D); 1808 // TemplateParmPosition. 1809 Record.push_back(D->getDepth()); 1810 Record.push_back(D->getPosition()); 1811 if (TypeConstraint) 1812 Record.AddStmt(TypeConstraint); 1813 1814 if (D->isExpandedParameterPack()) { 1815 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { 1816 Record.AddTypeRef(D->getExpansionType(I)); 1817 Record.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I)); 1818 } 1819 1820 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK; 1821 } else { 1822 // Rest of NonTypeTemplateParmDecl. 1823 Record.push_back(D->isParameterPack()); 1824 bool OwnsDefaultArg = D->hasDefaultArgument() && 1825 !D->defaultArgumentWasInherited(); 1826 Record.push_back(OwnsDefaultArg); 1827 if (OwnsDefaultArg) 1828 Record.AddStmt(D->getDefaultArgument()); 1829 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM; 1830 } 1831 } 1832 1833 void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) { 1834 // For an expanded parameter pack, record the number of expansion types here 1835 // so that it's easier for deserialization to allocate the right amount of 1836 // memory. 1837 if (D->isExpandedParameterPack()) 1838 Record.push_back(D->getNumExpansionTemplateParameters()); 1839 1840 VisitTemplateDecl(D); 1841 // TemplateParmPosition. 1842 Record.push_back(D->getDepth()); 1843 Record.push_back(D->getPosition()); 1844 1845 if (D->isExpandedParameterPack()) { 1846 for (unsigned I = 0, N = D->getNumExpansionTemplateParameters(); 1847 I != N; ++I) 1848 Record.AddTemplateParameterList(D->getExpansionTemplateParameters(I)); 1849 Code = serialization::DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK; 1850 } else { 1851 // Rest of TemplateTemplateParmDecl. 1852 Record.push_back(D->isParameterPack()); 1853 bool OwnsDefaultArg = D->hasDefaultArgument() && 1854 !D->defaultArgumentWasInherited(); 1855 Record.push_back(OwnsDefaultArg); 1856 if (OwnsDefaultArg) 1857 Record.AddTemplateArgumentLoc(D->getDefaultArgument()); 1858 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM; 1859 } 1860 } 1861 1862 void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { 1863 VisitRedeclarableTemplateDecl(D); 1864 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE; 1865 } 1866 1867 void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) { 1868 VisitDecl(D); 1869 Record.AddStmt(D->getAssertExpr()); 1870 Record.push_back(D->isFailed()); 1871 Record.AddStmt(D->getMessage()); 1872 Record.AddSourceLocation(D->getRParenLoc()); 1873 Code = serialization::DECL_STATIC_ASSERT; 1874 } 1875 1876 /// Emit the DeclContext part of a declaration context decl. 1877 void ASTDeclWriter::VisitDeclContext(DeclContext *DC) { 1878 static_assert(DeclContext::NumDeclContextBits == 13, 1879 "You need to update the serializer after you change the " 1880 "DeclContextBits"); 1881 1882 Record.AddOffset(Writer.WriteDeclContextLexicalBlock(Context, DC)); 1883 Record.AddOffset(Writer.WriteDeclContextVisibleBlock(Context, DC)); 1884 } 1885 1886 const Decl *ASTWriter::getFirstLocalDecl(const Decl *D) { 1887 assert(IsLocalDecl(D) && "expected a local declaration"); 1888 1889 const Decl *Canon = D->getCanonicalDecl(); 1890 if (IsLocalDecl(Canon)) 1891 return Canon; 1892 1893 const Decl *&CacheEntry = FirstLocalDeclCache[Canon]; 1894 if (CacheEntry) 1895 return CacheEntry; 1896 1897 for (const Decl *Redecl = D; Redecl; Redecl = Redecl->getPreviousDecl()) 1898 if (IsLocalDecl(Redecl)) 1899 D = Redecl; 1900 return CacheEntry = D; 1901 } 1902 1903 template <typename T> 1904 void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) { 1905 T *First = D->getFirstDecl(); 1906 T *MostRecent = First->getMostRecentDecl(); 1907 T *DAsT = static_cast<T *>(D); 1908 if (MostRecent != First) { 1909 assert(isRedeclarableDeclKind(DAsT->getKind()) && 1910 "Not considered redeclarable?"); 1911 1912 Record.AddDeclRef(First); 1913 1914 // Write out a list of local redeclarations of this declaration if it's the 1915 // first local declaration in the chain. 1916 const Decl *FirstLocal = Writer.getFirstLocalDecl(DAsT); 1917 if (DAsT == FirstLocal) { 1918 // Emit a list of all imported first declarations so that we can be sure 1919 // that all redeclarations visible to this module are before D in the 1920 // redecl chain. 1921 unsigned I = Record.size(); 1922 Record.push_back(0); 1923 if (Writer.Chain) 1924 AddFirstDeclFromEachModule(DAsT, /*IncludeLocal*/false); 1925 // This is the number of imported first declarations + 1. 1926 Record[I] = Record.size() - I; 1927 1928 // Collect the set of local redeclarations of this declaration, from 1929 // newest to oldest. 1930 ASTWriter::RecordData LocalRedecls; 1931 ASTRecordWriter LocalRedeclWriter(Record, LocalRedecls); 1932 for (const Decl *Prev = FirstLocal->getMostRecentDecl(); 1933 Prev != FirstLocal; Prev = Prev->getPreviousDecl()) 1934 if (!Prev->isFromASTFile()) 1935 LocalRedeclWriter.AddDeclRef(Prev); 1936 1937 // If we have any redecls, write them now as a separate record preceding 1938 // the declaration itself. 1939 if (LocalRedecls.empty()) 1940 Record.push_back(0); 1941 else 1942 Record.AddOffset(LocalRedeclWriter.Emit(LOCAL_REDECLARATIONS)); 1943 } else { 1944 Record.push_back(0); 1945 Record.AddDeclRef(FirstLocal); 1946 } 1947 1948 // Make sure that we serialize both the previous and the most-recent 1949 // declarations, which (transitively) ensures that all declarations in the 1950 // chain get serialized. 1951 // 1952 // FIXME: This is not correct; when we reach an imported declaration we 1953 // won't emit its previous declaration. 1954 (void)Writer.GetDeclRef(D->getPreviousDecl()); 1955 (void)Writer.GetDeclRef(MostRecent); 1956 } else { 1957 // We use the sentinel value 0 to indicate an only declaration. 1958 Record.push_back(0); 1959 } 1960 } 1961 1962 void ASTDeclWriter::VisitHLSLBufferDecl(HLSLBufferDecl *D) { 1963 VisitNamedDecl(D); 1964 VisitDeclContext(D); 1965 Record.push_back(D->isCBuffer()); 1966 Record.AddSourceLocation(D->getLocStart()); 1967 Record.AddSourceLocation(D->getLBraceLoc()); 1968 Record.AddSourceLocation(D->getRBraceLoc()); 1969 1970 Code = serialization::DECL_HLSL_BUFFER; 1971 } 1972 1973 void ASTDeclWriter::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) { 1974 Record.writeOMPChildren(D->Data); 1975 VisitDecl(D); 1976 Code = serialization::DECL_OMP_THREADPRIVATE; 1977 } 1978 1979 void ASTDeclWriter::VisitOMPAllocateDecl(OMPAllocateDecl *D) { 1980 Record.writeOMPChildren(D->Data); 1981 VisitDecl(D); 1982 Code = serialization::DECL_OMP_ALLOCATE; 1983 } 1984 1985 void ASTDeclWriter::VisitOMPRequiresDecl(OMPRequiresDecl *D) { 1986 Record.writeOMPChildren(D->Data); 1987 VisitDecl(D); 1988 Code = serialization::DECL_OMP_REQUIRES; 1989 } 1990 1991 void ASTDeclWriter::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) { 1992 static_assert(DeclContext::NumOMPDeclareReductionDeclBits == 2, 1993 "You need to update the serializer after you change the " 1994 "NumOMPDeclareReductionDeclBits"); 1995 1996 VisitValueDecl(D); 1997 Record.AddSourceLocation(D->getBeginLoc()); 1998 Record.AddStmt(D->getCombinerIn()); 1999 Record.AddStmt(D->getCombinerOut()); 2000 Record.AddStmt(D->getCombiner()); 2001 Record.AddStmt(D->getInitOrig()); 2002 Record.AddStmt(D->getInitPriv()); 2003 Record.AddStmt(D->getInitializer()); 2004 Record.push_back(D->getInitializerKind()); 2005 Record.AddDeclRef(D->getPrevDeclInScope()); 2006 Code = serialization::DECL_OMP_DECLARE_REDUCTION; 2007 } 2008 2009 void ASTDeclWriter::VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D) { 2010 Record.writeOMPChildren(D->Data); 2011 VisitValueDecl(D); 2012 Record.AddDeclarationName(D->getVarName()); 2013 Record.AddDeclRef(D->getPrevDeclInScope()); 2014 Code = serialization::DECL_OMP_DECLARE_MAPPER; 2015 } 2016 2017 void ASTDeclWriter::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) { 2018 VisitVarDecl(D); 2019 Code = serialization::DECL_OMP_CAPTUREDEXPR; 2020 } 2021 2022 //===----------------------------------------------------------------------===// 2023 // ASTWriter Implementation 2024 //===----------------------------------------------------------------------===// 2025 2026 void ASTWriter::WriteDeclAbbrevs() { 2027 using namespace llvm; 2028 2029 std::shared_ptr<BitCodeAbbrev> Abv; 2030 2031 // Abbreviation for DECL_FIELD 2032 Abv = std::make_shared<BitCodeAbbrev>(); 2033 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD)); 2034 // Decl 2035 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 2036 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 2037 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 2038 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 2039 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 2040 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 2041 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 2042 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 2043 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 2044 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // ModuleOwnershipKind 2045 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 2046 // NamedDecl 2047 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 2048 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 2049 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 2050 // ValueDecl 2051 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2052 // DeclaratorDecl 2053 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 2054 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 2055 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TSIType 2056 // FieldDecl 2057 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 2058 Abv->Add(BitCodeAbbrevOp(0)); // StorageKind 2059 // Type Source Info 2060 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2061 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 2062 DeclFieldAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2063 2064 // Abbreviation for DECL_OBJC_IVAR 2065 Abv = std::make_shared<BitCodeAbbrev>(); 2066 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR)); 2067 // Decl 2068 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 2069 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 2070 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 2071 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 2072 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 2073 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 2074 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 2075 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 2076 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier 2077 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // ModuleOwnershipKind 2078 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 2079 // NamedDecl 2080 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 2081 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 2082 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 2083 // ValueDecl 2084 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2085 // DeclaratorDecl 2086 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 2087 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 2088 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TSIType 2089 // FieldDecl 2090 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable 2091 Abv->Add(BitCodeAbbrevOp(0)); // InitStyle 2092 // ObjC Ivar 2093 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl 2094 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize 2095 // Type Source Info 2096 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2097 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 2098 DeclObjCIvarAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2099 2100 // Abbreviation for DECL_ENUM 2101 Abv = std::make_shared<BitCodeAbbrev>(); 2102 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM)); 2103 // Redeclarable 2104 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 2105 // Decl 2106 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 2107 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 2108 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 2109 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 2110 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 2111 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 2112 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 2113 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 2114 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 2115 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // ModuleOwnershipKind 2116 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 2117 // NamedDecl 2118 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 2119 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 2120 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 2121 // TypeDecl 2122 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 2123 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 2124 // TagDecl 2125 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 2126 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 2127 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition 2128 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 2129 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding 2130 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired 2131 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 2132 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 2133 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind 2134 // EnumDecl 2135 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef 2136 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType 2137 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType 2138 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits 2139 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits 2140 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped 2141 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag 2142 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed 2143 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));// ODRHash 2144 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum 2145 // DC 2146 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 2147 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 2148 DeclEnumAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2149 2150 // Abbreviation for DECL_RECORD 2151 Abv = std::make_shared<BitCodeAbbrev>(); 2152 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD)); 2153 // Redeclarable 2154 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 2155 // Decl 2156 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 2157 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 2158 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 2159 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 2160 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 2161 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 2162 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 2163 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 2164 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 2165 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // ModuleOwnershipKind 2166 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 2167 // NamedDecl 2168 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 2169 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 2170 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 2171 // TypeDecl 2172 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 2173 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 2174 // TagDecl 2175 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace 2176 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind 2177 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition 2178 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator 2179 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding 2180 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired 2181 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 2182 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation 2183 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind 2184 // RecordDecl 2185 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember 2186 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion 2187 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember 2188 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasVolatileMember 2189 2190 // isNonTrivialToPrimitiveDefaultInitialize 2191 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); 2192 // isNonTrivialToPrimitiveCopy 2193 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); 2194 // isNonTrivialToPrimitiveDestroy 2195 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); 2196 // hasNonTrivialToPrimitiveDefaultInitializeCUnion 2197 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); 2198 // hasNonTrivialToPrimitiveDestructCUnion 2199 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); 2200 // hasNonTrivialToPrimitiveCopyCUnion 2201 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); 2202 // isParamDestroyedInCallee 2203 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); 2204 // getArgPassingRestrictions 2205 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); 2206 // ODRHash 2207 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 26)); 2208 2209 // DC 2210 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset 2211 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset 2212 DeclRecordAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2213 2214 // Abbreviation for DECL_PARM_VAR 2215 Abv = std::make_shared<BitCodeAbbrev>(); 2216 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR)); 2217 // Redeclarable 2218 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 2219 // Decl 2220 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 2221 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 2222 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 2223 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 2224 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 2225 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 2226 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 2227 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 2228 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 2229 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // ModuleOwnershipKind 2230 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 2231 // NamedDecl 2232 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 2233 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 2234 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 2235 // ValueDecl 2236 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2237 // DeclaratorDecl 2238 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 2239 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 2240 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TSIType 2241 // VarDecl 2242 Abv->Add(BitCodeAbbrevOp(0)); // SClass 2243 Abv->Add(BitCodeAbbrevOp(0)); // TSCSpec 2244 Abv->Add(BitCodeAbbrevOp(0)); // InitStyle 2245 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong 2246 Abv->Add(BitCodeAbbrevOp(0)); // Linkage 2247 Abv->Add(BitCodeAbbrevOp(0)); // ModulesCodegen 2248 Abv->Add(BitCodeAbbrevOp(0)); // VarKind (local enum) 2249 // ParmVarDecl 2250 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter 2251 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth 2252 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex 2253 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier 2254 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted 2255 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg 2256 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg 2257 // Type Source Info 2258 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2259 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 2260 DeclParmVarAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2261 2262 // Abbreviation for DECL_TYPEDEF 2263 Abv = std::make_shared<BitCodeAbbrev>(); 2264 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF)); 2265 // Redeclarable 2266 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 2267 // Decl 2268 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 2269 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 2270 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 2271 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 2272 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 2273 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isUsed 2274 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isReferenced 2275 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 2276 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // C++ AccessSpecifier 2277 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // ModuleOwnershipKind 2278 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 2279 // NamedDecl 2280 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 2281 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 2282 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 2283 // TypeDecl 2284 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location 2285 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref 2286 // TypedefDecl 2287 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2288 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 2289 DeclTypedefAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2290 2291 // Abbreviation for DECL_VAR 2292 Abv = std::make_shared<BitCodeAbbrev>(); 2293 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR)); 2294 // Redeclarable 2295 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration 2296 // Decl 2297 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 2298 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 2299 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl 2300 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 2301 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit 2302 Abv->Add(BitCodeAbbrevOp(0)); // isUsed 2303 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced 2304 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer 2305 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier 2306 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // ModuleOwnershipKind 2307 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 2308 // NamedDecl 2309 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier 2310 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name 2311 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 2312 // ValueDecl 2313 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2314 // DeclaratorDecl 2315 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc 2316 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo 2317 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TSIType 2318 // VarDecl 2319 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // SClass 2320 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // TSCSpec 2321 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // InitStyle 2322 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong 2323 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsThisDeclarationADemotedDefinition 2324 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable 2325 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable 2326 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl 2327 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isObjCForDecl 2328 Abv->Add(BitCodeAbbrevOp(0)); // isInline 2329 Abv->Add(BitCodeAbbrevOp(0)); // isInlineSpecified 2330 Abv->Add(BitCodeAbbrevOp(0)); // isConstexpr 2331 Abv->Add(BitCodeAbbrevOp(0)); // isInitCapture 2332 Abv->Add(BitCodeAbbrevOp(0)); // isPrevDeclInSameScope 2333 Abv->Add(BitCodeAbbrevOp(0)); // ImplicitParamKind 2334 Abv->Add(BitCodeAbbrevOp(0)); // EscapingByref 2335 Abv->Add(BitCodeAbbrevOp(0)); // HasDeducedType 2336 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage 2337 Abv->Add(BitCodeAbbrevOp(0)); // ModulesCodeGen 2338 Abv->Add(BitCodeAbbrevOp(0)); // VarKind (local enum) 2339 // Type Source Info 2340 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2341 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc 2342 DeclVarAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2343 2344 // Abbreviation for DECL_CXX_METHOD 2345 Abv = std::make_shared<BitCodeAbbrev>(); 2346 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CXX_METHOD)); 2347 // RedeclarableDecl 2348 Abv->Add(BitCodeAbbrevOp(0)); // CanonicalDecl 2349 // FIXME: Implement abbreviation for other template kinds. 2350 Abv->Add(BitCodeAbbrevOp(FunctionDecl::TK_NonTemplate)); // TemplateKind 2351 // Decl 2352 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext 2353 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext 2354 Abv->Add(BitCodeAbbrevOp(0)); // Invalid 2355 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs 2356 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Implicit 2357 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Used 2358 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Referenced 2359 Abv->Add(BitCodeAbbrevOp(0)); // InObjCContainer 2360 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Access 2361 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // ModuleOwnershipKind 2362 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID 2363 // NamedDecl 2364 Abv->Add(BitCodeAbbrevOp(DeclarationName::Identifier)); // NameKind 2365 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Identifier 2366 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber 2367 // ValueDecl 2368 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2369 // DeclaratorDecl 2370 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerLocStart 2371 Abv->Add(BitCodeAbbrevOp(0)); // HasExtInfo 2372 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TSIType 2373 // FunctionDecl 2374 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 11)); // IDNS 2375 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // StorageClass 2376 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Inline 2377 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InlineSpecified 2378 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // VirtualAsWritten 2379 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Pure 2380 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedProto 2381 Abv->Add(BitCodeAbbrevOp(1)); // HasWrittenProto 2382 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Deleted 2383 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Trivial 2384 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // TrivialForCall 2385 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Defaulted 2386 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ExplicitlyDefaulted 2387 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsIneligibleOrNotSelected 2388 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ImplicitReturnZero 2389 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Constexpr 2390 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // UsesSEHTry 2391 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // SkippedBody 2392 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // MultiVersion 2393 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // LateParsed 2394 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FriendConstraintRefersToEnclosingTemplate 2395 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage 2396 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LocEnd 2397 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Default 2398 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // ODRHash 2399 // This Array slurps the rest of the record. Fortunately we want to encode 2400 // (nearly) all the remaining (variable number of) fields in the same way. 2401 // 2402 // This is: 2403 // NumParams and Params[] from FunctionDecl, and 2404 // NumOverriddenMethods, OverriddenMethods[] from CXXMethodDecl. 2405 // 2406 // Add an AbbrevOp for 'size then elements' and use it here. 2407 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2408 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 2409 DeclCXXMethodAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2410 2411 unsigned ExprDependenceBits = llvm::BitWidth<ExprDependence>; 2412 // Abbreviation for EXPR_DECL_REF 2413 Abv = std::make_shared<BitCodeAbbrev>(); 2414 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF)); 2415 //Stmt 2416 // Expr 2417 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2418 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, ExprDependenceBits)); 2419 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 2420 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 2421 //DeclRefExpr 2422 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier 2423 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound 2424 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs 2425 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates 2426 Abv->Add(BitCodeAbbrevOp(0)); // RefersToEnclosingVariableOrCapture 2427 Abv->Add(BitCodeAbbrevOp(0)); // NonOdrUseReason 2428 Abv->Add(BitCodeAbbrevOp(0)); // IsImmediateEscalating 2429 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef 2430 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 2431 DeclRefExprAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2432 2433 // Abbreviation for EXPR_INTEGER_LITERAL 2434 Abv = std::make_shared<BitCodeAbbrev>(); 2435 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL)); 2436 //Stmt 2437 // Expr 2438 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2439 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, ExprDependenceBits)); 2440 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 2441 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 2442 //Integer Literal 2443 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 2444 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width 2445 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value 2446 IntegerLiteralAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2447 2448 // Abbreviation for EXPR_CHARACTER_LITERAL 2449 Abv = std::make_shared<BitCodeAbbrev>(); 2450 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL)); 2451 //Stmt 2452 // Expr 2453 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2454 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, ExprDependenceBits)); 2455 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 2456 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 2457 //Character Literal 2458 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue 2459 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location 2460 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // getKind 2461 CharacterLiteralAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2462 2463 // Abbreviation for EXPR_IMPLICIT_CAST 2464 Abv = std::make_shared<BitCodeAbbrev>(); 2465 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_IMPLICIT_CAST)); 2466 // Stmt 2467 // Expr 2468 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type 2469 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, ExprDependenceBits)); 2470 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind 2471 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind 2472 // CastExpr 2473 Abv->Add(BitCodeAbbrevOp(0)); // PathSize 2474 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasFPFeatures 2475 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 6)); // CastKind 2476 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // PartOfExplicitCast 2477 // ImplicitCastExpr 2478 ExprImplicitCastAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2479 2480 Abv = std::make_shared<BitCodeAbbrev>(); 2481 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL)); 2482 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 2483 DeclContextLexicalAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2484 2485 Abv = std::make_shared<BitCodeAbbrev>(); 2486 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE)); 2487 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); 2488 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(std::move(Abv)); 2489 } 2490 2491 /// isRequiredDecl - Check if this is a "required" Decl, which must be seen by 2492 /// consumers of the AST. 2493 /// 2494 /// Such decls will always be deserialized from the AST file, so we would like 2495 /// this to be as restrictive as possible. Currently the predicate is driven by 2496 /// code generation requirements, if other clients have a different notion of 2497 /// what is "required" then we may have to consider an alternate scheme where 2498 /// clients can iterate over the top-level decls and get information on them, 2499 /// without necessary deserializing them. We could explicitly require such 2500 /// clients to use a separate API call to "realize" the decl. This should be 2501 /// relatively painless since they would presumably only do it for top-level 2502 /// decls. 2503 static bool isRequiredDecl(const Decl *D, ASTContext &Context, 2504 Module *WritingModule) { 2505 // Named modules have different semantics than header modules. Every named 2506 // module units owns a translation unit. So the importer of named modules 2507 // doesn't need to deserilize everything ahead of time. 2508 if (WritingModule && WritingModule->isModulePurview()) { 2509 // The PragmaCommentDecl and PragmaDetectMismatchDecl are MSVC's extension. 2510 // And the behavior of MSVC for such cases will leak this to the module 2511 // users. Given pragma is not a standard thing, the compiler has the space 2512 // to do their own decision. Let's follow MSVC here. 2513 if (isa<PragmaCommentDecl, PragmaDetectMismatchDecl>(D)) 2514 return true; 2515 return false; 2516 } 2517 2518 // An ObjCMethodDecl is never considered as "required" because its 2519 // implementation container always is. 2520 2521 // File scoped assembly or obj-c or OMP declare target implementation must be 2522 // seen. 2523 if (isa<FileScopeAsmDecl, TopLevelStmtDecl, ObjCImplDecl>(D)) 2524 return true; 2525 2526 if (WritingModule && isPartOfPerModuleInitializer(D)) { 2527 // These declarations are part of the module initializer, and are emitted 2528 // if and when the module is imported, rather than being emitted eagerly. 2529 return false; 2530 } 2531 2532 return Context.DeclMustBeEmitted(D); 2533 } 2534 2535 void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) { 2536 PrettyDeclStackTraceEntry CrashInfo(Context, D, SourceLocation(), 2537 "serializing"); 2538 2539 // Determine the ID for this declaration. 2540 serialization::DeclID ID; 2541 assert(!D->isFromASTFile() && "should not be emitting imported decl"); 2542 serialization::DeclID &IDR = DeclIDs[D]; 2543 if (IDR == 0) 2544 IDR = NextDeclID++; 2545 2546 ID = IDR; 2547 2548 assert(ID >= FirstDeclID && "invalid decl ID"); 2549 2550 RecordData Record; 2551 ASTDeclWriter W(*this, Context, Record); 2552 2553 // Build a record for this declaration 2554 W.Visit(D); 2555 2556 // Emit this declaration to the bitstream. 2557 uint64_t Offset = W.Emit(D); 2558 2559 // Record the offset for this declaration 2560 SourceLocation Loc = D->getLocation(); 2561 unsigned Index = ID - FirstDeclID; 2562 if (DeclOffsets.size() == Index) 2563 DeclOffsets.emplace_back(getAdjustedLocation(Loc), Offset, 2564 DeclTypesBlockStartOffset); 2565 else if (DeclOffsets.size() < Index) { 2566 // FIXME: Can/should this happen? 2567 DeclOffsets.resize(Index+1); 2568 DeclOffsets[Index].setLocation(getAdjustedLocation(Loc)); 2569 DeclOffsets[Index].setBitOffset(Offset, DeclTypesBlockStartOffset); 2570 } else { 2571 llvm_unreachable("declarations should be emitted in ID order"); 2572 } 2573 2574 SourceManager &SM = Context.getSourceManager(); 2575 if (Loc.isValid() && SM.isLocalSourceLocation(Loc)) 2576 associateDeclWithFile(D, ID); 2577 2578 // Note declarations that should be deserialized eagerly so that we can add 2579 // them to a record in the AST file later. 2580 if (isRequiredDecl(D, Context, WritingModule)) 2581 EagerlyDeserializedDecls.push_back(ID); 2582 } 2583 2584 void ASTRecordWriter::AddFunctionDefinition(const FunctionDecl *FD) { 2585 // Switch case IDs are per function body. 2586 Writer->ClearSwitchCaseIDs(); 2587 2588 assert(FD->doesThisDeclarationHaveABody()); 2589 bool ModulesCodegen = false; 2590 if (!FD->isDependentContext()) { 2591 std::optional<GVALinkage> Linkage; 2592 if (Writer->WritingModule && 2593 Writer->WritingModule->isInterfaceOrPartition()) { 2594 // When building a C++20 module interface unit or a partition unit, a 2595 // strong definition in the module interface is provided by the 2596 // compilation of that unit, not by its users. (Inline functions are still 2597 // emitted in module users.) 2598 Linkage = Writer->Context->GetGVALinkageForFunction(FD); 2599 ModulesCodegen = *Linkage >= GVA_StrongExternal; 2600 } 2601 if (Writer->Context->getLangOpts().ModulesCodegen || 2602 (FD->hasAttr<DLLExportAttr>() && 2603 Writer->Context->getLangOpts().BuildingPCHWithObjectFile)) { 2604 2605 // Under -fmodules-codegen, codegen is performed for all non-internal, 2606 // non-always_inline functions, unless they are available elsewhere. 2607 if (!FD->hasAttr<AlwaysInlineAttr>()) { 2608 if (!Linkage) 2609 Linkage = Writer->Context->GetGVALinkageForFunction(FD); 2610 ModulesCodegen = 2611 *Linkage != GVA_Internal && *Linkage != GVA_AvailableExternally; 2612 } 2613 } 2614 } 2615 Record->push_back(ModulesCodegen); 2616 if (ModulesCodegen) 2617 Writer->ModularCodegenDecls.push_back(Writer->GetDeclRef(FD)); 2618 if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) { 2619 Record->push_back(CD->getNumCtorInitializers()); 2620 if (CD->getNumCtorInitializers()) 2621 AddCXXCtorInitializers(llvm::ArrayRef(CD->init_begin(), CD->init_end())); 2622 } 2623 AddStmt(FD->getBody()); 2624 } 2625