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