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