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