1 //===--- ASTWriterDecl.cpp - Declaration Serialization --------------------===//
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
7 //===----------------------------------------------------------------------===//
9 // This file implements serialization for Declarations.
11 //===----------------------------------------------------------------------===//
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/Bitstream/BitstreamWriter.h"
25 #include "llvm/Support/ErrorHandling.h"
26 using namespace clang;
27 using namespace serialization;
29 //===----------------------------------------------------------------------===//
30 // Declaration serialization
31 //===----------------------------------------------------------------------===//
34 class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> {
37 ASTRecordWriter Record;
39 serialization::DeclCode Code;
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) {}
48 uint64_t Emit(Decl *D) {
50 llvm::report_fatal_error(StringRef("unexpected declaration kind '") +
51 D->getDeclKindName() + "'");
52 return Record.Emit(Code, AbbrevToUse);
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 VisitConceptDecl(ConceptDecl *D);
106 void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D);
107 void VisitClassTemplateDecl(ClassTemplateDecl *D);
108 void VisitVarTemplateDecl(VarTemplateDecl *D);
109 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
110 void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
111 void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D);
112 void VisitUsingDecl(UsingDecl *D);
113 void VisitUsingPackDecl(UsingPackDecl *D);
114 void VisitUsingShadowDecl(UsingShadowDecl *D);
115 void VisitConstructorUsingShadowDecl(ConstructorUsingShadowDecl *D);
116 void VisitLinkageSpecDecl(LinkageSpecDecl *D);
117 void VisitExportDecl(ExportDecl *D);
118 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D);
119 void VisitImportDecl(ImportDecl *D);
120 void VisitAccessSpecDecl(AccessSpecDecl *D);
121 void VisitFriendDecl(FriendDecl *D);
122 void VisitFriendTemplateDecl(FriendTemplateDecl *D);
123 void VisitStaticAssertDecl(StaticAssertDecl *D);
124 void VisitBlockDecl(BlockDecl *D);
125 void VisitCapturedDecl(CapturedDecl *D);
126 void VisitEmptyDecl(EmptyDecl *D);
128 void VisitDeclContext(DeclContext *DC);
129 template <typename T> void VisitRedeclarable(Redeclarable<T> *D);
132 // FIXME: Put in the same order is DeclNodes.td?
133 void VisitObjCMethodDecl(ObjCMethodDecl *D);
134 void VisitObjCTypeParamDecl(ObjCTypeParamDecl *D);
135 void VisitObjCContainerDecl(ObjCContainerDecl *D);
136 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
137 void VisitObjCIvarDecl(ObjCIvarDecl *D);
138 void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
139 void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
140 void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
141 void VisitObjCImplDecl(ObjCImplDecl *D);
142 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
143 void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
144 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
145 void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
146 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
147 void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D);
148 void VisitOMPAllocateDecl(OMPAllocateDecl *D);
149 void VisitOMPRequiresDecl(OMPRequiresDecl *D);
150 void VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D);
151 void VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D);
152 void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D);
154 /// Add an Objective-C type parameter list to the given record.
155 void AddObjCTypeParamList(ObjCTypeParamList *typeParams) {
156 // Empty type parameter list.
162 Record.push_back(typeParams->size());
163 for (auto typeParam : *typeParams) {
164 Record.AddDeclRef(typeParam);
166 Record.AddSourceLocation(typeParams->getLAngleLoc());
167 Record.AddSourceLocation(typeParams->getRAngleLoc());
170 /// Add to the record the first declaration from each module file that
171 /// provides a declaration of D. The intent is to provide a sufficient
172 /// set such that reloading this set will load all current redeclarations.
173 void AddFirstDeclFromEachModule(const Decl *D, bool IncludeLocal) {
174 llvm::MapVector<ModuleFile*, const Decl*> Firsts;
175 // FIXME: We can skip entries that we know are implied by others.
176 for (const Decl *R = D->getMostRecentDecl(); R; R = R->getPreviousDecl()) {
177 if (R->isFromASTFile())
178 Firsts[Writer.Chain->getOwningModuleFile(R)] = R;
179 else if (IncludeLocal)
182 for (const auto &F : Firsts)
183 Record.AddDeclRef(F.second);
186 /// Get the specialization decl from an entry in the specialization list.
187 template <typename EntryType>
188 typename RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::DeclType *
189 getSpecializationDecl(EntryType &T) {
190 return RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::getDecl(&T);
193 /// Get the list of partial specializations from a template's common ptr.
195 decltype(T::PartialSpecializations) &getPartialSpecializations(T *Common) {
196 return Common->PartialSpecializations;
198 ArrayRef<Decl> getPartialSpecializations(FunctionTemplateDecl::Common *) {
202 template<typename DeclTy>
203 void AddTemplateSpecializations(DeclTy *D) {
204 auto *Common = D->getCommonPtr();
206 // If we have any lazy specializations, and the external AST source is
207 // our chained AST reader, we can just write out the DeclIDs. Otherwise,
208 // we need to resolve them to actual declarations.
209 if (Writer.Chain != Writer.Context->getExternalSource() &&
210 Common->LazySpecializations) {
211 D->LoadLazySpecializations();
212 assert(!Common->LazySpecializations);
215 ArrayRef<DeclID> LazySpecializations;
216 if (auto *LS = Common->LazySpecializations)
217 LazySpecializations = llvm::makeArrayRef(LS + 1, LS[0]);
219 // Add a slot to the record for the number of specializations.
220 unsigned I = Record.size();
223 // AddFirstDeclFromEachModule might trigger deserialization, invalidating
224 // *Specializations iterators.
225 llvm::SmallVector<const Decl*, 16> Specs;
226 for (auto &Entry : Common->Specializations)
227 Specs.push_back(getSpecializationDecl(Entry));
228 for (auto &Entry : getPartialSpecializations(Common))
229 Specs.push_back(getSpecializationDecl(Entry));
231 for (auto *D : Specs) {
232 assert(D->isCanonicalDecl() && "non-canonical decl in set");
233 AddFirstDeclFromEachModule(D, /*IncludeLocal*/true);
235 Record.append(LazySpecializations.begin(), LazySpecializations.end());
237 // Update the size entry we added earlier.
238 Record[I] = Record.size() - I - 1;
241 /// Ensure that this template specialization is associated with the specified
242 /// template on reload.
243 void RegisterTemplateSpecialization(const Decl *Template,
244 const Decl *Specialization) {
245 Template = Template->getCanonicalDecl();
247 // If the canonical template is local, we'll write out this specialization
249 // FIXME: We can do the same thing if there is any local declaration of
250 // the template, to avoid emitting an update record.
251 if (!Template->isFromASTFile())
254 // We only need to associate the first local declaration of the
255 // specialization. The other declarations will get pulled in by it.
256 if (Writer.getFirstLocalDecl(Specialization) != Specialization)
259 Writer.DeclUpdates[Template].push_back(ASTWriter::DeclUpdate(
260 UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION, Specialization));
265 void ASTDeclWriter::Visit(Decl *D) {
266 DeclVisitor<ASTDeclWriter>::Visit(D);
268 // Source locations require array (variable-length) abbreviations. The
269 // abbreviation infrastructure requires that arrays are encoded last, so
270 // we handle it here in the case of those classes derived from DeclaratorDecl
271 if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)) {
272 if (auto *TInfo = DD->getTypeSourceInfo())
273 Record.AddTypeLoc(TInfo->getTypeLoc());
276 // Handle FunctionDecl's body here and write it after all other Stmts/Exprs
277 // have been written. We want it last because we will not read it back when
278 // retrieving it from the AST, we'll just lazily set the offset.
279 if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
280 Record.push_back(FD->doesThisDeclarationHaveABody());
281 if (FD->doesThisDeclarationHaveABody())
282 Record.AddFunctionDefinition(FD);
285 // If this declaration is also a DeclContext, write blocks for the
286 // declarations that lexically stored inside its context and those
287 // declarations that are visible from its context.
288 if (DeclContext *DC = dyn_cast<DeclContext>(D))
289 VisitDeclContext(DC);
292 void ASTDeclWriter::VisitDecl(Decl *D) {
293 Record.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()));
294 if (D->getDeclContext() != D->getLexicalDeclContext())
295 Record.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()));
298 Record.push_back(D->isInvalidDecl());
299 Record.push_back(D->hasAttrs());
301 Record.AddAttributes(D->getAttrs());
302 Record.push_back(D->isImplicit());
303 Record.push_back(D->isUsed(false));
304 Record.push_back(D->isReferenced());
305 Record.push_back(D->isTopLevelDeclInObjCContainer());
306 Record.push_back(D->getAccess());
307 Record.push_back(D->isModulePrivate());
308 Record.push_back(Writer.getSubmoduleID(D->getOwningModule()));
310 // If this declaration injected a name into a context different from its
311 // lexical context, and that context is an imported namespace, we need to
312 // update its visible declarations to include this name.
314 // This happens when we instantiate a class with a friend declaration or a
315 // function with a local extern declaration, for instance.
317 // FIXME: Can we handle this in AddedVisibleDecl instead?
318 if (D->isOutOfLine()) {
319 auto *DC = D->getDeclContext();
320 while (auto *NS = dyn_cast<NamespaceDecl>(DC->getRedeclContext())) {
321 if (!NS->isFromASTFile())
323 Writer.UpdatedDeclContexts.insert(NS->getPrimaryContext());
324 if (!NS->isInlineNamespace())
326 DC = NS->getParent();
331 void ASTDeclWriter::VisitPragmaCommentDecl(PragmaCommentDecl *D) {
332 StringRef Arg = D->getArg();
333 Record.push_back(Arg.size());
335 Record.AddSourceLocation(D->getBeginLoc());
336 Record.push_back(D->getCommentKind());
337 Record.AddString(Arg);
338 Code = serialization::DECL_PRAGMA_COMMENT;
341 void ASTDeclWriter::VisitPragmaDetectMismatchDecl(
342 PragmaDetectMismatchDecl *D) {
343 StringRef Name = D->getName();
344 StringRef Value = D->getValue();
345 Record.push_back(Name.size() + 1 + Value.size());
347 Record.AddSourceLocation(D->getBeginLoc());
348 Record.AddString(Name);
349 Record.AddString(Value);
350 Code = serialization::DECL_PRAGMA_DETECT_MISMATCH;
353 void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
354 llvm_unreachable("Translation units aren't directly serialized");
357 void ASTDeclWriter::VisitNamedDecl(NamedDecl *D) {
359 Record.AddDeclarationName(D->getDeclName());
360 Record.push_back(needsAnonymousDeclarationNumber(D)
361 ? Writer.getAnonymousDeclarationNumber(D)
365 void ASTDeclWriter::VisitTypeDecl(TypeDecl *D) {
367 Record.AddSourceLocation(D->getBeginLoc());
368 Record.AddTypeRef(QualType(D->getTypeForDecl(), 0));
371 void ASTDeclWriter::VisitTypedefNameDecl(TypedefNameDecl *D) {
372 VisitRedeclarable(D);
374 Record.AddTypeSourceInfo(D->getTypeSourceInfo());
375 Record.push_back(D->isModed());
377 Record.AddTypeRef(D->getUnderlyingType());
378 Record.AddDeclRef(D->getAnonDeclWithTypedefName(false));
381 void ASTDeclWriter::VisitTypedefDecl(TypedefDecl *D) {
382 VisitTypedefNameDecl(D);
383 if (D->getDeclContext() == D->getLexicalDeclContext() &&
386 D->getFirstDecl() == D->getMostRecentDecl() &&
387 !D->isInvalidDecl() &&
388 !D->isTopLevelDeclInObjCContainer() &&
389 !D->isModulePrivate() &&
390 !needsAnonymousDeclarationNumber(D) &&
391 D->getDeclName().getNameKind() == DeclarationName::Identifier)
392 AbbrevToUse = Writer.getDeclTypedefAbbrev();
394 Code = serialization::DECL_TYPEDEF;
397 void ASTDeclWriter::VisitTypeAliasDecl(TypeAliasDecl *D) {
398 VisitTypedefNameDecl(D);
399 Record.AddDeclRef(D->getDescribedAliasTemplate());
400 Code = serialization::DECL_TYPEALIAS;
403 void ASTDeclWriter::VisitTagDecl(TagDecl *D) {
404 VisitRedeclarable(D);
406 Record.push_back(D->getIdentifierNamespace());
407 Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding
408 if (!isa<CXXRecordDecl>(D))
409 Record.push_back(D->isCompleteDefinition());
410 Record.push_back(D->isEmbeddedInDeclarator());
411 Record.push_back(D->isFreeStanding());
412 Record.push_back(D->isCompleteDefinitionRequired());
413 Record.AddSourceRange(D->getBraceRange());
415 if (D->hasExtInfo()) {
417 Record.AddQualifierInfo(*D->getExtInfo());
418 } else if (auto *TD = D->getTypedefNameForAnonDecl()) {
420 Record.AddDeclRef(TD);
421 Record.AddIdentifierRef(TD->getDeclName().getAsIdentifierInfo());
427 void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) {
429 Record.AddTypeSourceInfo(D->getIntegerTypeSourceInfo());
430 if (!D->getIntegerTypeSourceInfo())
431 Record.AddTypeRef(D->getIntegerType());
432 Record.AddTypeRef(D->getPromotionType());
433 Record.push_back(D->getNumPositiveBits());
434 Record.push_back(D->getNumNegativeBits());
435 Record.push_back(D->isScoped());
436 Record.push_back(D->isScopedUsingClassTag());
437 Record.push_back(D->isFixed());
438 Record.push_back(D->getODRHash());
440 if (MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo()) {
441 Record.AddDeclRef(MemberInfo->getInstantiatedFrom());
442 Record.push_back(MemberInfo->getTemplateSpecializationKind());
443 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation());
445 Record.AddDeclRef(nullptr);
448 if (D->getDeclContext() == D->getLexicalDeclContext() &&
453 !D->getTypedefNameForAnonDecl() &&
454 D->getFirstDecl() == D->getMostRecentDecl() &&
455 !D->isInvalidDecl() &&
456 !D->isReferenced() &&
457 !D->isTopLevelDeclInObjCContainer() &&
458 D->getAccess() == AS_none &&
459 !D->isModulePrivate() &&
460 !CXXRecordDecl::classofKind(D->getKind()) &&
461 !D->getIntegerTypeSourceInfo() &&
462 !D->getMemberSpecializationInfo() &&
463 !needsAnonymousDeclarationNumber(D) &&
464 D->getDeclName().getNameKind() == DeclarationName::Identifier)
465 AbbrevToUse = Writer.getDeclEnumAbbrev();
467 Code = serialization::DECL_ENUM;
470 void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) {
472 Record.push_back(D->hasFlexibleArrayMember());
473 Record.push_back(D->isAnonymousStructOrUnion());
474 Record.push_back(D->hasObjectMember());
475 Record.push_back(D->hasVolatileMember());
476 Record.push_back(D->isNonTrivialToPrimitiveDefaultInitialize());
477 Record.push_back(D->isNonTrivialToPrimitiveCopy());
478 Record.push_back(D->isNonTrivialToPrimitiveDestroy());
479 Record.push_back(D->hasNonTrivialToPrimitiveDefaultInitializeCUnion());
480 Record.push_back(D->hasNonTrivialToPrimitiveDestructCUnion());
481 Record.push_back(D->hasNonTrivialToPrimitiveCopyCUnion());
482 Record.push_back(D->isParamDestroyedInCallee());
483 Record.push_back(D->getArgPassingRestrictions());
485 if (D->getDeclContext() == D->getLexicalDeclContext() &&
490 !D->getTypedefNameForAnonDecl() &&
491 D->getFirstDecl() == D->getMostRecentDecl() &&
492 !D->isInvalidDecl() &&
493 !D->isReferenced() &&
494 !D->isTopLevelDeclInObjCContainer() &&
495 D->getAccess() == AS_none &&
496 !D->isModulePrivate() &&
497 !CXXRecordDecl::classofKind(D->getKind()) &&
498 !needsAnonymousDeclarationNumber(D) &&
499 D->getDeclName().getNameKind() == DeclarationName::Identifier)
500 AbbrevToUse = Writer.getDeclRecordAbbrev();
502 Code = serialization::DECL_RECORD;
505 void ASTDeclWriter::VisitValueDecl(ValueDecl *D) {
507 Record.AddTypeRef(D->getType());
510 void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) {
512 Record.push_back(D->getInitExpr()? 1 : 0);
513 if (D->getInitExpr())
514 Record.AddStmt(D->getInitExpr());
515 Record.AddAPSInt(D->getInitVal());
517 Code = serialization::DECL_ENUM_CONSTANT;
520 void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) {
522 Record.AddSourceLocation(D->getInnerLocStart());
523 Record.push_back(D->hasExtInfo());
525 Record.AddQualifierInfo(*D->getExtInfo());
526 // The location information is deferred until the end of the record.
527 Record.AddTypeRef(D->getTypeSourceInfo() ? D->getTypeSourceInfo()->getType()
531 void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) {
532 VisitRedeclarable(D);
533 VisitDeclaratorDecl(D);
534 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName());
535 Record.push_back(D->getIdentifierNamespace());
537 // FunctionDecl's body is handled last at ASTWriterDecl::Visit,
538 // after everything else is written.
539 Record.push_back(static_cast<int>(D->getStorageClass())); // FIXME: stable encoding
540 Record.push_back(D->isInlineSpecified());
541 Record.push_back(D->isInlined());
542 Record.push_back(D->isVirtualAsWritten());
543 Record.push_back(D->isPure());
544 Record.push_back(D->hasInheritedPrototype());
545 Record.push_back(D->hasWrittenPrototype());
546 Record.push_back(D->isDeletedBit());
547 Record.push_back(D->isTrivial());
548 Record.push_back(D->isTrivialForCall());
549 Record.push_back(D->isDefaulted());
550 Record.push_back(D->isExplicitlyDefaulted());
551 Record.push_back(D->hasImplicitReturnZero());
552 Record.push_back(D->getConstexprKind());
553 Record.push_back(D->usesSEHTry());
554 Record.push_back(D->hasSkippedBody());
555 Record.push_back(D->isMultiVersion());
556 Record.push_back(D->isLateTemplateParsed());
557 Record.push_back(D->getLinkageInternal());
558 Record.AddSourceLocation(D->getEndLoc());
560 Record.push_back(D->getODRHash());
562 Record.push_back(D->getTemplatedKind());
563 switch (D->getTemplatedKind()) {
564 case FunctionDecl::TK_NonTemplate:
566 case FunctionDecl::TK_FunctionTemplate:
567 Record.AddDeclRef(D->getDescribedFunctionTemplate());
569 case FunctionDecl::TK_MemberSpecialization: {
570 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo();
571 Record.AddDeclRef(MemberInfo->getInstantiatedFrom());
572 Record.push_back(MemberInfo->getTemplateSpecializationKind());
573 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation());
576 case FunctionDecl::TK_FunctionTemplateSpecialization: {
577 FunctionTemplateSpecializationInfo *
578 FTSInfo = D->getTemplateSpecializationInfo();
580 RegisterTemplateSpecialization(FTSInfo->getTemplate(), D);
582 Record.AddDeclRef(FTSInfo->getTemplate());
583 Record.push_back(FTSInfo->getTemplateSpecializationKind());
585 // Template arguments.
586 Record.AddTemplateArgumentList(FTSInfo->TemplateArguments);
588 // Template args as written.
589 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != nullptr);
590 if (FTSInfo->TemplateArgumentsAsWritten) {
591 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs);
592 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs;
594 Record.AddTemplateArgumentLoc(
595 (*FTSInfo->TemplateArgumentsAsWritten)[i]);
596 Record.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc);
597 Record.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc);
600 Record.AddSourceLocation(FTSInfo->getPointOfInstantiation());
602 if (MemberSpecializationInfo *MemberInfo =
603 FTSInfo->getMemberSpecializationInfo()) {
605 Record.AddDeclRef(MemberInfo->getInstantiatedFrom());
606 Record.push_back(MemberInfo->getTemplateSpecializationKind());
607 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation());
612 if (D->isCanonicalDecl()) {
613 // Write the template that contains the specializations set. We will
614 // add a FunctionTemplateSpecializationInfo to it when reading.
615 Record.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl());
619 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
620 DependentFunctionTemplateSpecializationInfo *
621 DFTSInfo = D->getDependentSpecializationInfo();
624 Record.push_back(DFTSInfo->getNumTemplates());
625 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i)
626 Record.AddDeclRef(DFTSInfo->getTemplate(i));
629 Record.push_back(DFTSInfo->getNumTemplateArgs());
630 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i)
631 Record.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i));
632 Record.AddSourceLocation(DFTSInfo->getLAngleLoc());
633 Record.AddSourceLocation(DFTSInfo->getRAngleLoc());
638 Record.push_back(D->param_size());
639 for (auto P : D->parameters())
640 Record.AddDeclRef(P);
641 Code = serialization::DECL_FUNCTION;
644 static void addExplicitSpecifier(ExplicitSpecifier ES,
645 ASTRecordWriter &Record) {
646 uint64_t Kind = static_cast<uint64_t>(ES.getKind());
647 Kind = Kind << 1 | static_cast<bool>(ES.getExpr());
648 Record.push_back(Kind);
650 Record.AddStmt(ES.getExpr());
654 void ASTDeclWriter::VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D) {
655 addExplicitSpecifier(D->getExplicitSpecifier(), Record);
656 VisitFunctionDecl(D);
657 Record.push_back(D->isCopyDeductionCandidate());
658 Code = serialization::DECL_CXX_DEDUCTION_GUIDE;
661 void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
663 // FIXME: convert to LazyStmtPtr?
664 // Unlike C/C++, method bodies will never be in header files.
665 bool HasBodyStuff = D->getBody() != nullptr ||
666 D->getSelfDecl() != nullptr || D->getCmdDecl() != nullptr;
667 Record.push_back(HasBodyStuff);
669 Record.AddStmt(D->getBody());
670 Record.AddDeclRef(D->getSelfDecl());
671 Record.AddDeclRef(D->getCmdDecl());
673 Record.push_back(D->isInstanceMethod());
674 Record.push_back(D->isVariadic());
675 Record.push_back(D->isPropertyAccessor());
676 Record.push_back(D->isDefined());
677 Record.push_back(D->isOverriding());
678 Record.push_back(D->hasSkippedBody());
680 Record.push_back(D->isRedeclaration());
681 Record.push_back(D->hasRedeclaration());
682 if (D->hasRedeclaration()) {
683 assert(Context.getObjCMethodRedeclaration(D));
684 Record.AddDeclRef(Context.getObjCMethodRedeclaration(D));
687 // FIXME: stable encoding for @required/@optional
688 Record.push_back(D->getImplementationControl());
689 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway/nullability
690 Record.push_back(D->getObjCDeclQualifier());
691 Record.push_back(D->hasRelatedResultType());
692 Record.AddTypeRef(D->getReturnType());
693 Record.AddTypeSourceInfo(D->getReturnTypeSourceInfo());
694 Record.AddSourceLocation(D->getEndLoc());
695 Record.push_back(D->param_size());
696 for (const auto *P : D->parameters())
697 Record.AddDeclRef(P);
699 Record.push_back(D->getSelLocsKind());
700 unsigned NumStoredSelLocs = D->getNumStoredSelLocs();
701 SourceLocation *SelLocs = D->getStoredSelLocs();
702 Record.push_back(NumStoredSelLocs);
703 for (unsigned i = 0; i != NumStoredSelLocs; ++i)
704 Record.AddSourceLocation(SelLocs[i]);
706 Code = serialization::DECL_OBJC_METHOD;
709 void ASTDeclWriter::VisitObjCTypeParamDecl(ObjCTypeParamDecl *D) {
710 VisitTypedefNameDecl(D);
711 Record.push_back(D->Variance);
712 Record.push_back(D->Index);
713 Record.AddSourceLocation(D->VarianceLoc);
714 Record.AddSourceLocation(D->ColonLoc);
716 Code = serialization::DECL_OBJC_TYPE_PARAM;
719 void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) {
721 Record.AddSourceLocation(D->getAtStartLoc());
722 Record.AddSourceRange(D->getAtEndRange());
723 // Abstract class (no need to define a stable serialization::DECL code).
726 void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
727 VisitRedeclarable(D);
728 VisitObjCContainerDecl(D);
729 Record.AddTypeRef(QualType(D->getTypeForDecl(), 0));
730 AddObjCTypeParamList(D->TypeParamList);
732 Record.push_back(D->isThisDeclarationADefinition());
733 if (D->isThisDeclarationADefinition()) {
734 // Write the DefinitionData
735 ObjCInterfaceDecl::DefinitionData &Data = D->data();
737 Record.AddTypeSourceInfo(D->getSuperClassTInfo());
738 Record.AddSourceLocation(D->getEndOfDefinitionLoc());
739 Record.push_back(Data.HasDesignatedInitializers);
741 // Write out the protocols that are directly referenced by the @interface.
742 Record.push_back(Data.ReferencedProtocols.size());
743 for (const auto *P : D->protocols())
744 Record.AddDeclRef(P);
745 for (const auto &PL : D->protocol_locs())
746 Record.AddSourceLocation(PL);
748 // Write out the protocols that are transitively referenced.
749 Record.push_back(Data.AllReferencedProtocols.size());
750 for (ObjCList<ObjCProtocolDecl>::iterator
751 P = Data.AllReferencedProtocols.begin(),
752 PEnd = Data.AllReferencedProtocols.end();
754 Record.AddDeclRef(*P);
757 if (ObjCCategoryDecl *Cat = D->getCategoryListRaw()) {
758 // Ensure that we write out the set of categories for this class.
759 Writer.ObjCClassesWithCategories.insert(D);
761 // Make sure that the categories get serialized.
762 for (; Cat; Cat = Cat->getNextClassCategoryRaw())
763 (void)Writer.GetDeclRef(Cat);
767 Code = serialization::DECL_OBJC_INTERFACE;
770 void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
772 // FIXME: stable encoding for @public/@private/@protected/@package
773 Record.push_back(D->getAccessControl());
774 Record.push_back(D->getSynthesize());
776 if (D->getDeclContext() == D->getLexicalDeclContext() &&
780 !D->isInvalidDecl() &&
781 !D->isReferenced() &&
782 !D->isModulePrivate() &&
786 AbbrevToUse = Writer.getDeclObjCIvarAbbrev();
788 Code = serialization::DECL_OBJC_IVAR;
791 void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
792 VisitRedeclarable(D);
793 VisitObjCContainerDecl(D);
795 Record.push_back(D->isThisDeclarationADefinition());
796 if (D->isThisDeclarationADefinition()) {
797 Record.push_back(D->protocol_size());
798 for (const auto *I : D->protocols())
799 Record.AddDeclRef(I);
800 for (const auto &PL : D->protocol_locs())
801 Record.AddSourceLocation(PL);
804 Code = serialization::DECL_OBJC_PROTOCOL;
807 void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) {
809 Code = serialization::DECL_OBJC_AT_DEFS_FIELD;
812 void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
813 VisitObjCContainerDecl(D);
814 Record.AddSourceLocation(D->getCategoryNameLoc());
815 Record.AddSourceLocation(D->getIvarLBraceLoc());
816 Record.AddSourceLocation(D->getIvarRBraceLoc());
817 Record.AddDeclRef(D->getClassInterface());
818 AddObjCTypeParamList(D->TypeParamList);
819 Record.push_back(D->protocol_size());
820 for (const auto *I : D->protocols())
821 Record.AddDeclRef(I);
822 for (const auto &PL : D->protocol_locs())
823 Record.AddSourceLocation(PL);
824 Code = serialization::DECL_OBJC_CATEGORY;
827 void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) {
829 Record.AddDeclRef(D->getClassInterface());
830 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS;
833 void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
835 Record.AddSourceLocation(D->getAtLoc());
836 Record.AddSourceLocation(D->getLParenLoc());
837 Record.AddTypeRef(D->getType());
838 Record.AddTypeSourceInfo(D->getTypeSourceInfo());
839 // FIXME: stable encoding
840 Record.push_back((unsigned)D->getPropertyAttributes());
841 Record.push_back((unsigned)D->getPropertyAttributesAsWritten());
842 // FIXME: stable encoding
843 Record.push_back((unsigned)D->getPropertyImplementation());
844 Record.AddDeclarationName(D->getGetterName());
845 Record.AddSourceLocation(D->getGetterNameLoc());
846 Record.AddDeclarationName(D->getSetterName());
847 Record.AddSourceLocation(D->getSetterNameLoc());
848 Record.AddDeclRef(D->getGetterMethodDecl());
849 Record.AddDeclRef(D->getSetterMethodDecl());
850 Record.AddDeclRef(D->getPropertyIvarDecl());
851 Code = serialization::DECL_OBJC_PROPERTY;
854 void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) {
855 VisitObjCContainerDecl(D);
856 Record.AddDeclRef(D->getClassInterface());
857 // Abstract class (no need to define a stable serialization::DECL code).
860 void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
861 VisitObjCImplDecl(D);
862 Record.AddSourceLocation(D->getCategoryNameLoc());
863 Code = serialization::DECL_OBJC_CATEGORY_IMPL;
866 void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
867 VisitObjCImplDecl(D);
868 Record.AddDeclRef(D->getSuperClass());
869 Record.AddSourceLocation(D->getSuperClassLoc());
870 Record.AddSourceLocation(D->getIvarLBraceLoc());
871 Record.AddSourceLocation(D->getIvarRBraceLoc());
872 Record.push_back(D->hasNonZeroConstructors());
873 Record.push_back(D->hasDestructors());
874 Record.push_back(D->NumIvarInitializers);
875 if (D->NumIvarInitializers)
876 Record.AddCXXCtorInitializers(
877 llvm::makeArrayRef(D->init_begin(), D->init_end()));
878 Code = serialization::DECL_OBJC_IMPLEMENTATION;
881 void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
883 Record.AddSourceLocation(D->getBeginLoc());
884 Record.AddDeclRef(D->getPropertyDecl());
885 Record.AddDeclRef(D->getPropertyIvarDecl());
886 Record.AddSourceLocation(D->getPropertyIvarDeclLoc());
887 Record.AddStmt(D->getGetterCXXConstructor());
888 Record.AddStmt(D->getSetterCXXAssignment());
889 Code = serialization::DECL_OBJC_PROPERTY_IMPL;
892 void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) {
893 VisitDeclaratorDecl(D);
894 Record.push_back(D->isMutable());
896 FieldDecl::InitStorageKind ISK = D->InitStorage.getInt();
897 Record.push_back(ISK);
898 if (ISK == FieldDecl::ISK_CapturedVLAType)
899 Record.AddTypeRef(QualType(D->getCapturedVLAType(), 0));
901 Record.AddStmt(D->getInClassInitializer());
903 Record.AddStmt(D->getBitWidth());
905 if (!D->getDeclName())
906 Record.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D));
908 if (D->getDeclContext() == D->getLexicalDeclContext() &&
912 !D->isInvalidDecl() &&
913 !D->isReferenced() &&
914 !D->isTopLevelDeclInObjCContainer() &&
915 !D->isModulePrivate() &&
917 !D->hasInClassInitializer() &&
918 !D->hasCapturedVLAType() &&
920 !ObjCIvarDecl::classofKind(D->getKind()) &&
921 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) &&
923 AbbrevToUse = Writer.getDeclFieldAbbrev();
925 Code = serialization::DECL_FIELD;
928 void ASTDeclWriter::VisitMSPropertyDecl(MSPropertyDecl *D) {
929 VisitDeclaratorDecl(D);
930 Record.AddIdentifierRef(D->getGetterId());
931 Record.AddIdentifierRef(D->getSetterId());
932 Code = serialization::DECL_MS_PROPERTY;
935 void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) {
937 Record.push_back(D->getChainingSize());
939 for (const auto *P : D->chain())
940 Record.AddDeclRef(P);
941 Code = serialization::DECL_INDIRECTFIELD;
944 void ASTDeclWriter::VisitVarDecl(VarDecl *D) {
945 VisitRedeclarable(D);
946 VisitDeclaratorDecl(D);
947 Record.push_back(D->getStorageClass());
948 Record.push_back(D->getTSCSpec());
949 Record.push_back(D->getInitStyle());
950 Record.push_back(D->isARCPseudoStrong());
951 if (!isa<ParmVarDecl>(D)) {
952 Record.push_back(D->isThisDeclarationADemotedDefinition());
953 Record.push_back(D->isExceptionVariable());
954 Record.push_back(D->isNRVOVariable());
955 Record.push_back(D->isCXXForRangeDecl());
956 Record.push_back(D->isObjCForDecl());
957 Record.push_back(D->isInline());
958 Record.push_back(D->isInlineSpecified());
959 Record.push_back(D->isConstexpr());
960 Record.push_back(D->isInitCapture());
961 Record.push_back(D->isPreviousDeclInSameBlockScope());
962 if (const auto *IPD = dyn_cast<ImplicitParamDecl>(D))
963 Record.push_back(static_cast<unsigned>(IPD->getParameterKind()));
966 Record.push_back(D->isEscapingByref());
968 Record.push_back(D->getLinkageInternal());
971 Record.push_back(!D->isInitKnownICE() ? 1 : (D->isInitICE() ? 3 : 2));
972 Record.AddStmt(D->getInit());
977 if (D->hasAttr<BlocksAttr>() && D->getType()->getAsCXXRecordDecl()) {
978 ASTContext::BlockVarCopyInit Init = Writer.Context->getBlockVarCopyInit(D);
979 Record.AddStmt(Init.getCopyExpr());
980 if (Init.getCopyExpr())
981 Record.push_back(Init.canThrow());
984 if (D->getStorageDuration() == SD_Static) {
985 bool ModulesCodegen = false;
986 if (Writer.WritingModule &&
987 !D->getDescribedVarTemplate() && !D->getMemberSpecializationInfo() &&
988 !isa<VarTemplateSpecializationDecl>(D)) {
989 // When building a C++ Modules TS module interface unit, a strong
990 // definition in the module interface is provided by the compilation of
991 // that module interface unit, not by its users. (Inline variables are
992 // still emitted in module users.)
994 (Writer.WritingModule->Kind == Module::ModuleInterfaceUnit &&
995 Writer.Context->GetGVALinkageForVariable(D) == GVA_StrongExternal);
997 Record.push_back(ModulesCodegen);
999 Writer.ModularCodegenDecls.push_back(Writer.GetDeclRef(D));
1003 VarNotTemplate = 0, VarTemplate, StaticDataMemberSpecialization
1005 if (VarTemplateDecl *TemplD = D->getDescribedVarTemplate()) {
1006 Record.push_back(VarTemplate);
1007 Record.AddDeclRef(TemplD);
1008 } else if (MemberSpecializationInfo *SpecInfo
1009 = D->getMemberSpecializationInfo()) {
1010 Record.push_back(StaticDataMemberSpecialization);
1011 Record.AddDeclRef(SpecInfo->getInstantiatedFrom());
1012 Record.push_back(SpecInfo->getTemplateSpecializationKind());
1013 Record.AddSourceLocation(SpecInfo->getPointOfInstantiation());
1015 Record.push_back(VarNotTemplate);
1018 if (D->getDeclContext() == D->getLexicalDeclContext() &&
1021 !D->isUsed(false) &&
1022 !D->isInvalidDecl() &&
1023 !D->isReferenced() &&
1024 !D->isTopLevelDeclInObjCContainer() &&
1025 D->getAccess() == AS_none &&
1026 !D->isModulePrivate() &&
1027 !needsAnonymousDeclarationNumber(D) &&
1028 D->getDeclName().getNameKind() == DeclarationName::Identifier &&
1030 D->getFirstDecl() == D->getMostRecentDecl() &&
1031 D->getKind() == Decl::Var &&
1033 !D->isConstexpr() &&
1034 !D->isInitCapture() &&
1035 !D->isPreviousDeclInSameBlockScope() &&
1036 !(D->hasAttr<BlocksAttr>() && D->getType()->getAsCXXRecordDecl()) &&
1037 !D->isEscapingByref() &&
1038 D->getStorageDuration() != SD_Static &&
1039 !D->getMemberSpecializationInfo())
1040 AbbrevToUse = Writer.getDeclVarAbbrev();
1042 Code = serialization::DECL_VAR;
1045 void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
1047 Code = serialization::DECL_IMPLICIT_PARAM;
1050 void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) {
1052 Record.push_back(D->isObjCMethodParameter());
1053 Record.push_back(D->getFunctionScopeDepth());
1054 Record.push_back(D->getFunctionScopeIndex());
1055 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding
1056 Record.push_back(D->isKNRPromoted());
1057 Record.push_back(D->hasInheritedDefaultArg());
1058 Record.push_back(D->hasUninstantiatedDefaultArg());
1059 if (D->hasUninstantiatedDefaultArg())
1060 Record.AddStmt(D->getUninstantiatedDefaultArg());
1061 Code = serialization::DECL_PARM_VAR;
1063 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl
1065 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here
1066 // we dynamically check for the properties that we optimize for, but don't
1067 // know are true of all PARM_VAR_DECLs.
1068 if (D->getDeclContext() == D->getLexicalDeclContext() &&
1072 !D->isUsed(false) &&
1073 !D->isInvalidDecl() &&
1074 !D->isReferenced() &&
1075 D->getAccess() == AS_none &&
1076 !D->isModulePrivate() &&
1077 D->getStorageClass() == 0 &&
1078 D->getInitStyle() == VarDecl::CInit && // Can params have anything else?
1079 D->getFunctionScopeDepth() == 0 &&
1080 D->getObjCDeclQualifier() == 0 &&
1081 !D->isKNRPromoted() &&
1082 !D->hasInheritedDefaultArg() &&
1083 D->getInit() == nullptr &&
1084 !D->hasUninstantiatedDefaultArg()) // No default expr.
1085 AbbrevToUse = Writer.getDeclParmVarAbbrev();
1087 // Check things we know are true of *every* PARM_VAR_DECL, which is more than
1088 // just us assuming it.
1089 assert(!D->getTSCSpec() && "PARM_VAR_DECL can't use TLS");
1090 assert(!D->isThisDeclarationADemotedDefinition()
1091 && "PARM_VAR_DECL can't be demoted definition.");
1092 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private");
1093 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var");
1094 assert(D->getPreviousDecl() == nullptr && "PARM_VAR_DECL can't be redecl");
1095 assert(!D->isStaticDataMember() &&
1096 "PARM_VAR_DECL can't be static data member");
1099 void ASTDeclWriter::VisitDecompositionDecl(DecompositionDecl *D) {
1100 // Record the number of bindings first to simplify deserialization.
1101 Record.push_back(D->bindings().size());
1104 for (auto *B : D->bindings())
1105 Record.AddDeclRef(B);
1106 Code = serialization::DECL_DECOMPOSITION;
1109 void ASTDeclWriter::VisitBindingDecl(BindingDecl *D) {
1111 Record.AddStmt(D->getBinding());
1112 Code = serialization::DECL_BINDING;
1115 void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
1117 Record.AddStmt(D->getAsmString());
1118 Record.AddSourceLocation(D->getRParenLoc());
1119 Code = serialization::DECL_FILE_SCOPE_ASM;
1122 void ASTDeclWriter::VisitEmptyDecl(EmptyDecl *D) {
1124 Code = serialization::DECL_EMPTY;
1127 void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) {
1129 Record.AddStmt(D->getBody());
1130 Record.AddTypeSourceInfo(D->getSignatureAsWritten());
1131 Record.push_back(D->param_size());
1132 for (ParmVarDecl *P : D->parameters())
1133 Record.AddDeclRef(P);
1134 Record.push_back(D->isVariadic());
1135 Record.push_back(D->blockMissingReturnType());
1136 Record.push_back(D->isConversionFromLambda());
1137 Record.push_back(D->doesNotEscape());
1138 Record.push_back(D->canAvoidCopyToHeap());
1139 Record.push_back(D->capturesCXXThis());
1140 Record.push_back(D->getNumCaptures());
1141 for (const auto &capture : D->captures()) {
1142 Record.AddDeclRef(capture.getVariable());
1145 if (capture.isByRef()) flags |= 1;
1146 if (capture.isNested()) flags |= 2;
1147 if (capture.hasCopyExpr()) flags |= 4;
1148 Record.push_back(flags);
1150 if (capture.hasCopyExpr()) Record.AddStmt(capture.getCopyExpr());
1153 Code = serialization::DECL_BLOCK;
1156 void ASTDeclWriter::VisitCapturedDecl(CapturedDecl *CD) {
1157 Record.push_back(CD->getNumParams());
1159 Record.push_back(CD->getContextParamPosition());
1160 Record.push_back(CD->isNothrow() ? 1 : 0);
1161 // Body is stored by VisitCapturedStmt.
1162 for (unsigned I = 0; I < CD->getNumParams(); ++I)
1163 Record.AddDeclRef(CD->getParam(I));
1164 Code = serialization::DECL_CAPTURED;
1167 void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
1169 Record.push_back(D->getLanguage());
1170 Record.AddSourceLocation(D->getExternLoc());
1171 Record.AddSourceLocation(D->getRBraceLoc());
1172 Code = serialization::DECL_LINKAGE_SPEC;
1175 void ASTDeclWriter::VisitExportDecl(ExportDecl *D) {
1177 Record.AddSourceLocation(D->getRBraceLoc());
1178 Code = serialization::DECL_EXPORT;
1181 void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) {
1183 Record.AddSourceLocation(D->getBeginLoc());
1184 Code = serialization::DECL_LABEL;
1188 void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) {
1189 VisitRedeclarable(D);
1191 Record.push_back(D->isInline());
1192 Record.AddSourceLocation(D->getBeginLoc());
1193 Record.AddSourceLocation(D->getRBraceLoc());
1195 if (D->isOriginalNamespace())
1196 Record.AddDeclRef(D->getAnonymousNamespace());
1197 Code = serialization::DECL_NAMESPACE;
1199 if (Writer.hasChain() && D->isAnonymousNamespace() &&
1200 D == D->getMostRecentDecl()) {
1201 // This is a most recent reopening of the anonymous namespace. If its parent
1202 // is in a previous PCH (or is the TU), mark that parent for update, because
1203 // the original namespace always points to the latest re-opening of its
1204 // anonymous namespace.
1205 Decl *Parent = cast<Decl>(
1206 D->getParent()->getRedeclContext()->getPrimaryContext());
1207 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) {
1208 Writer.DeclUpdates[Parent].push_back(
1209 ASTWriter::DeclUpdate(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE, D));
1214 void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
1215 VisitRedeclarable(D);
1217 Record.AddSourceLocation(D->getNamespaceLoc());
1218 Record.AddSourceLocation(D->getTargetNameLoc());
1219 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1220 Record.AddDeclRef(D->getNamespace());
1221 Code = serialization::DECL_NAMESPACE_ALIAS;
1224 void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) {
1226 Record.AddSourceLocation(D->getUsingLoc());
1227 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1228 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName());
1229 Record.AddDeclRef(D->FirstUsingShadow.getPointer());
1230 Record.push_back(D->hasTypename());
1231 Record.AddDeclRef(Context.getInstantiatedFromUsingDecl(D));
1232 Code = serialization::DECL_USING;
1235 void ASTDeclWriter::VisitUsingPackDecl(UsingPackDecl *D) {
1236 Record.push_back(D->NumExpansions);
1238 Record.AddDeclRef(D->getInstantiatedFromUsingDecl());
1239 for (auto *E : D->expansions())
1240 Record.AddDeclRef(E);
1241 Code = serialization::DECL_USING_PACK;
1244 void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) {
1245 VisitRedeclarable(D);
1247 Record.AddDeclRef(D->getTargetDecl());
1248 Record.push_back(D->getIdentifierNamespace());
1249 Record.AddDeclRef(D->UsingOrNextShadow);
1250 Record.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D));
1251 Code = serialization::DECL_USING_SHADOW;
1254 void ASTDeclWriter::VisitConstructorUsingShadowDecl(
1255 ConstructorUsingShadowDecl *D) {
1256 VisitUsingShadowDecl(D);
1257 Record.AddDeclRef(D->NominatedBaseClassShadowDecl);
1258 Record.AddDeclRef(D->ConstructedBaseClassShadowDecl);
1259 Record.push_back(D->IsVirtual);
1260 Code = serialization::DECL_CONSTRUCTOR_USING_SHADOW;
1263 void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
1265 Record.AddSourceLocation(D->getUsingLoc());
1266 Record.AddSourceLocation(D->getNamespaceKeyLocation());
1267 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1268 Record.AddDeclRef(D->getNominatedNamespace());
1269 Record.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()));
1270 Code = serialization::DECL_USING_DIRECTIVE;
1273 void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
1275 Record.AddSourceLocation(D->getUsingLoc());
1276 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1277 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName());
1278 Record.AddSourceLocation(D->getEllipsisLoc());
1279 Code = serialization::DECL_UNRESOLVED_USING_VALUE;
1282 void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl(
1283 UnresolvedUsingTypenameDecl *D) {
1285 Record.AddSourceLocation(D->getTypenameLoc());
1286 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1287 Record.AddSourceLocation(D->getEllipsisLoc());
1288 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME;
1291 void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) {
1295 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
1297 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) {
1298 Record.push_back(CXXRecTemplate);
1299 Record.AddDeclRef(TemplD);
1300 } else if (MemberSpecializationInfo *MSInfo
1301 = D->getMemberSpecializationInfo()) {
1302 Record.push_back(CXXRecMemberSpecialization);
1303 Record.AddDeclRef(MSInfo->getInstantiatedFrom());
1304 Record.push_back(MSInfo->getTemplateSpecializationKind());
1305 Record.AddSourceLocation(MSInfo->getPointOfInstantiation());
1307 Record.push_back(CXXRecNotTemplate);
1310 Record.push_back(D->isThisDeclarationADefinition());
1311 if (D->isThisDeclarationADefinition())
1312 Record.AddCXXDefinitionData(D);
1314 // Store (what we currently believe to be) the key function to avoid
1315 // deserializing every method so we can compute it.
1316 if (D->isCompleteDefinition())
1317 Record.AddDeclRef(Context.getCurrentKeyFunction(D));
1319 Code = serialization::DECL_CXX_RECORD;
1322 void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) {
1323 VisitFunctionDecl(D);
1324 if (D->isCanonicalDecl()) {
1325 Record.push_back(D->size_overridden_methods());
1326 for (const CXXMethodDecl *MD : D->overridden_methods())
1327 Record.AddDeclRef(MD);
1329 // We only need to record overridden methods once for the canonical decl.
1330 Record.push_back(0);
1333 if (D->getDeclContext() == D->getLexicalDeclContext() &&
1334 D->getFirstDecl() == D->getMostRecentDecl() &&
1335 !D->isInvalidDecl() &&
1337 !D->isTopLevelDeclInObjCContainer() &&
1338 D->getDeclName().getNameKind() == DeclarationName::Identifier &&
1340 !D->hasInheritedPrototype() &&
1341 D->hasWrittenPrototype())
1342 AbbrevToUse = Writer.getDeclCXXMethodAbbrev();
1344 Code = serialization::DECL_CXX_METHOD;
1347 void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
1348 Record.push_back(D->getTraillingAllocKind());
1349 addExplicitSpecifier(D->getExplicitSpecifier(), Record);
1350 if (auto Inherited = D->getInheritedConstructor()) {
1351 Record.AddDeclRef(Inherited.getShadowDecl());
1352 Record.AddDeclRef(Inherited.getConstructor());
1355 VisitCXXMethodDecl(D);
1356 Code = serialization::DECL_CXX_CONSTRUCTOR;
1359 void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
1360 VisitCXXMethodDecl(D);
1362 Record.AddDeclRef(D->getOperatorDelete());
1363 if (D->getOperatorDelete())
1364 Record.AddStmt(D->getOperatorDeleteThisArg());
1366 Code = serialization::DECL_CXX_DESTRUCTOR;
1369 void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) {
1370 addExplicitSpecifier(D->getExplicitSpecifier(), Record);
1371 VisitCXXMethodDecl(D);
1372 Code = serialization::DECL_CXX_CONVERSION;
1375 void ASTDeclWriter::VisitImportDecl(ImportDecl *D) {
1377 Record.push_back(Writer.getSubmoduleID(D->getImportedModule()));
1378 ArrayRef<SourceLocation> IdentifierLocs = D->getIdentifierLocs();
1379 Record.push_back(!IdentifierLocs.empty());
1380 if (IdentifierLocs.empty()) {
1381 Record.AddSourceLocation(D->getEndLoc());
1382 Record.push_back(1);
1384 for (unsigned I = 0, N = IdentifierLocs.size(); I != N; ++I)
1385 Record.AddSourceLocation(IdentifierLocs[I]);
1386 Record.push_back(IdentifierLocs.size());
1388 // Note: the number of source locations must always be the last element in
1390 Code = serialization::DECL_IMPORT;
1393 void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) {
1395 Record.AddSourceLocation(D->getColonLoc());
1396 Code = serialization::DECL_ACCESS_SPEC;
1399 void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) {
1400 // Record the number of friend type template parameter lists here
1401 // so as to simplify memory allocation during deserialization.
1402 Record.push_back(D->NumTPLists);
1404 bool hasFriendDecl = D->Friend.is<NamedDecl*>();
1405 Record.push_back(hasFriendDecl);
1407 Record.AddDeclRef(D->getFriendDecl());
1409 Record.AddTypeSourceInfo(D->getFriendType());
1410 for (unsigned i = 0; i < D->NumTPLists; ++i)
1411 Record.AddTemplateParameterList(D->getFriendTypeTemplateParameterList(i));
1412 Record.AddDeclRef(D->getNextFriend());
1413 Record.push_back(D->UnsupportedFriend);
1414 Record.AddSourceLocation(D->FriendLoc);
1415 Code = serialization::DECL_FRIEND;
1418 void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
1420 Record.push_back(D->getNumTemplateParameters());
1421 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i)
1422 Record.AddTemplateParameterList(D->getTemplateParameterList(i));
1423 Record.push_back(D->getFriendDecl() != nullptr);
1424 if (D->getFriendDecl())
1425 Record.AddDeclRef(D->getFriendDecl());
1427 Record.AddTypeSourceInfo(D->getFriendType());
1428 Record.AddSourceLocation(D->getFriendLoc());
1429 Code = serialization::DECL_FRIEND_TEMPLATE;
1432 void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) {
1435 Record.AddDeclRef(D->getTemplatedDecl());
1436 Record.AddTemplateParameterList(D->getTemplateParameters());
1439 void ASTDeclWriter::VisitConceptDecl(ConceptDecl *D) {
1440 VisitTemplateDecl(D);
1441 Record.AddStmt(D->getConstraintExpr());
1442 Code = serialization::DECL_CONCEPT;
1445 void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
1446 VisitRedeclarable(D);
1448 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that
1449 // getCommonPtr() can be used while this is still initializing.
1450 if (D->isFirstDecl()) {
1451 // This declaration owns the 'common' pointer, so serialize that data now.
1452 Record.AddDeclRef(D->getInstantiatedFromMemberTemplate());
1453 if (D->getInstantiatedFromMemberTemplate())
1454 Record.push_back(D->isMemberSpecialization());
1457 VisitTemplateDecl(D);
1458 Record.push_back(D->getIdentifierNamespace());
1461 void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
1462 VisitRedeclarableTemplateDecl(D);
1464 if (D->isFirstDecl())
1465 AddTemplateSpecializations(D);
1466 Code = serialization::DECL_CLASS_TEMPLATE;
1469 void ASTDeclWriter::VisitClassTemplateSpecializationDecl(
1470 ClassTemplateSpecializationDecl *D) {
1471 RegisterTemplateSpecialization(D->getSpecializedTemplate(), D);
1473 VisitCXXRecordDecl(D);
1475 llvm::PointerUnion<ClassTemplateDecl *,
1476 ClassTemplatePartialSpecializationDecl *> InstFrom
1477 = D->getSpecializedTemplateOrPartial();
1478 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) {
1479 Record.AddDeclRef(InstFromD);
1481 Record.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>());
1482 Record.AddTemplateArgumentList(&D->getTemplateInstantiationArgs());
1485 Record.AddTemplateArgumentList(&D->getTemplateArgs());
1486 Record.AddSourceLocation(D->getPointOfInstantiation());
1487 Record.push_back(D->getSpecializationKind());
1488 Record.push_back(D->isCanonicalDecl());
1490 if (D->isCanonicalDecl()) {
1491 // When reading, we'll add it to the folding set of the following template.
1492 Record.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl());
1496 Record.AddTypeSourceInfo(D->getTypeAsWritten());
1497 if (D->getTypeAsWritten()) {
1498 Record.AddSourceLocation(D->getExternLoc());
1499 Record.AddSourceLocation(D->getTemplateKeywordLoc());
1502 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION;
1505 void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl(
1506 ClassTemplatePartialSpecializationDecl *D) {
1507 VisitClassTemplateSpecializationDecl(D);
1509 Record.AddTemplateParameterList(D->getTemplateParameters());
1510 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten());
1512 // These are read/set from/to the first declaration.
1513 if (D->getPreviousDecl() == nullptr) {
1514 Record.AddDeclRef(D->getInstantiatedFromMember());
1515 Record.push_back(D->isMemberSpecialization());
1518 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION;
1521 void ASTDeclWriter::VisitVarTemplateDecl(VarTemplateDecl *D) {
1522 VisitRedeclarableTemplateDecl(D);
1524 if (D->isFirstDecl())
1525 AddTemplateSpecializations(D);
1526 Code = serialization::DECL_VAR_TEMPLATE;
1529 void ASTDeclWriter::VisitVarTemplateSpecializationDecl(
1530 VarTemplateSpecializationDecl *D) {
1531 RegisterTemplateSpecialization(D->getSpecializedTemplate(), D);
1535 llvm::PointerUnion<VarTemplateDecl *, VarTemplatePartialSpecializationDecl *>
1536 InstFrom = D->getSpecializedTemplateOrPartial();
1537 if (Decl *InstFromD = InstFrom.dyn_cast<VarTemplateDecl *>()) {
1538 Record.AddDeclRef(InstFromD);
1540 Record.AddDeclRef(InstFrom.get<VarTemplatePartialSpecializationDecl *>());
1541 Record.AddTemplateArgumentList(&D->getTemplateInstantiationArgs());
1545 Record.AddTypeSourceInfo(D->getTypeAsWritten());
1546 if (D->getTypeAsWritten()) {
1547 Record.AddSourceLocation(D->getExternLoc());
1548 Record.AddSourceLocation(D->getTemplateKeywordLoc());
1551 Record.AddTemplateArgumentList(&D->getTemplateArgs());
1552 Record.AddSourceLocation(D->getPointOfInstantiation());
1553 Record.push_back(D->getSpecializationKind());
1554 Record.push_back(D->IsCompleteDefinition);
1555 Record.push_back(D->isCanonicalDecl());
1557 if (D->isCanonicalDecl()) {
1558 // When reading, we'll add it to the folding set of the following template.
1559 Record.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl());
1562 Code = serialization::DECL_VAR_TEMPLATE_SPECIALIZATION;
1565 void ASTDeclWriter::VisitVarTemplatePartialSpecializationDecl(
1566 VarTemplatePartialSpecializationDecl *D) {
1567 VisitVarTemplateSpecializationDecl(D);
1569 Record.AddTemplateParameterList(D->getTemplateParameters());
1570 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten());
1572 // These are read/set from/to the first declaration.
1573 if (D->getPreviousDecl() == nullptr) {
1574 Record.AddDeclRef(D->getInstantiatedFromMember());
1575 Record.push_back(D->isMemberSpecialization());
1578 Code = serialization::DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION;
1581 void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl(
1582 ClassScopeFunctionSpecializationDecl *D) {
1584 Record.AddDeclRef(D->getSpecialization());
1585 Record.push_back(D->hasExplicitTemplateArgs());
1586 if (D->hasExplicitTemplateArgs())
1587 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten());
1588 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION;
1592 void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
1593 VisitRedeclarableTemplateDecl(D);
1595 if (D->isFirstDecl())
1596 AddTemplateSpecializations(D);
1597 Code = serialization::DECL_FUNCTION_TEMPLATE;
1600 void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
1603 Record.push_back(D->wasDeclaredWithTypename());
1605 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1606 !D->defaultArgumentWasInherited();
1607 Record.push_back(OwnsDefaultArg);
1609 Record.AddTypeSourceInfo(D->getDefaultArgumentInfo());
1611 Code = serialization::DECL_TEMPLATE_TYPE_PARM;
1614 void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
1615 // For an expanded parameter pack, record the number of expansion types here
1616 // so that it's easier for deserialization to allocate the right amount of
1618 if (D->isExpandedParameterPack())
1619 Record.push_back(D->getNumExpansionTypes());
1621 VisitDeclaratorDecl(D);
1622 // TemplateParmPosition.
1623 Record.push_back(D->getDepth());
1624 Record.push_back(D->getPosition());
1626 if (D->isExpandedParameterPack()) {
1627 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) {
1628 Record.AddTypeRef(D->getExpansionType(I));
1629 Record.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I));
1632 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK;
1634 // Rest of NonTypeTemplateParmDecl.
1635 Record.push_back(D->isParameterPack());
1636 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1637 !D->defaultArgumentWasInherited();
1638 Record.push_back(OwnsDefaultArg);
1640 Record.AddStmt(D->getDefaultArgument());
1641 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM;
1645 void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
1646 // For an expanded parameter pack, record the number of expansion types here
1647 // so that it's easier for deserialization to allocate the right amount of
1649 if (D->isExpandedParameterPack())
1650 Record.push_back(D->getNumExpansionTemplateParameters());
1652 VisitTemplateDecl(D);
1653 // TemplateParmPosition.
1654 Record.push_back(D->getDepth());
1655 Record.push_back(D->getPosition());
1657 if (D->isExpandedParameterPack()) {
1658 for (unsigned I = 0, N = D->getNumExpansionTemplateParameters();
1660 Record.AddTemplateParameterList(D->getExpansionTemplateParameters(I));
1661 Code = serialization::DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK;
1663 // Rest of TemplateTemplateParmDecl.
1664 Record.push_back(D->isParameterPack());
1665 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1666 !D->defaultArgumentWasInherited();
1667 Record.push_back(OwnsDefaultArg);
1669 Record.AddTemplateArgumentLoc(D->getDefaultArgument());
1670 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM;
1674 void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) {
1675 VisitRedeclarableTemplateDecl(D);
1676 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE;
1679 void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) {
1681 Record.AddStmt(D->getAssertExpr());
1682 Record.push_back(D->isFailed());
1683 Record.AddStmt(D->getMessage());
1684 Record.AddSourceLocation(D->getRParenLoc());
1685 Code = serialization::DECL_STATIC_ASSERT;
1688 /// Emit the DeclContext part of a declaration context decl.
1689 void ASTDeclWriter::VisitDeclContext(DeclContext *DC) {
1690 Record.AddOffset(Writer.WriteDeclContextLexicalBlock(Context, DC));
1691 Record.AddOffset(Writer.WriteDeclContextVisibleBlock(Context, DC));
1694 const Decl *ASTWriter::getFirstLocalDecl(const Decl *D) {
1695 assert(IsLocalDecl(D) && "expected a local declaration");
1697 const Decl *Canon = D->getCanonicalDecl();
1698 if (IsLocalDecl(Canon))
1701 const Decl *&CacheEntry = FirstLocalDeclCache[Canon];
1705 for (const Decl *Redecl = D; Redecl; Redecl = Redecl->getPreviousDecl())
1706 if (IsLocalDecl(Redecl))
1708 return CacheEntry = D;
1711 template <typename T>
1712 void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) {
1713 T *First = D->getFirstDecl();
1714 T *MostRecent = First->getMostRecentDecl();
1715 T *DAsT = static_cast<T *>(D);
1716 if (MostRecent != First) {
1717 assert(isRedeclarableDeclKind(DAsT->getKind()) &&
1718 "Not considered redeclarable?");
1720 Record.AddDeclRef(First);
1722 // Write out a list of local redeclarations of this declaration if it's the
1723 // first local declaration in the chain.
1724 const Decl *FirstLocal = Writer.getFirstLocalDecl(DAsT);
1725 if (DAsT == FirstLocal) {
1726 // Emit a list of all imported first declarations so that we can be sure
1727 // that all redeclarations visible to this module are before D in the
1729 unsigned I = Record.size();
1730 Record.push_back(0);
1732 AddFirstDeclFromEachModule(DAsT, /*IncludeLocal*/false);
1733 // This is the number of imported first declarations + 1.
1734 Record[I] = Record.size() - I;
1736 // Collect the set of local redeclarations of this declaration, from
1737 // newest to oldest.
1738 ASTWriter::RecordData LocalRedecls;
1739 ASTRecordWriter LocalRedeclWriter(Record, LocalRedecls);
1740 for (const Decl *Prev = FirstLocal->getMostRecentDecl();
1741 Prev != FirstLocal; Prev = Prev->getPreviousDecl())
1742 if (!Prev->isFromASTFile())
1743 LocalRedeclWriter.AddDeclRef(Prev);
1745 // If we have any redecls, write them now as a separate record preceding
1746 // the declaration itself.
1747 if (LocalRedecls.empty())
1748 Record.push_back(0);
1750 Record.AddOffset(LocalRedeclWriter.Emit(LOCAL_REDECLARATIONS));
1752 Record.push_back(0);
1753 Record.AddDeclRef(FirstLocal);
1756 // Make sure that we serialize both the previous and the most-recent
1757 // declarations, which (transitively) ensures that all declarations in the
1758 // chain get serialized.
1760 // FIXME: This is not correct; when we reach an imported declaration we
1761 // won't emit its previous declaration.
1762 (void)Writer.GetDeclRef(D->getPreviousDecl());
1763 (void)Writer.GetDeclRef(MostRecent);
1765 // We use the sentinel value 0 to indicate an only declaration.
1766 Record.push_back(0);
1770 void ASTDeclWriter::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
1771 Record.push_back(D->varlist_size());
1773 for (auto *I : D->varlists())
1775 Code = serialization::DECL_OMP_THREADPRIVATE;
1778 void ASTDeclWriter::VisitOMPAllocateDecl(OMPAllocateDecl *D) {
1779 Record.push_back(D->varlist_size());
1780 Record.push_back(D->clauselist_size());
1782 for (auto *I : D->varlists())
1784 OMPClauseWriter ClauseWriter(Record);
1785 for (OMPClause *C : D->clauselists())
1786 ClauseWriter.writeClause(C);
1787 Code = serialization::DECL_OMP_ALLOCATE;
1790 void ASTDeclWriter::VisitOMPRequiresDecl(OMPRequiresDecl *D) {
1791 Record.push_back(D->clauselist_size());
1793 OMPClauseWriter ClauseWriter(Record);
1794 for (OMPClause *C : D->clauselists())
1795 ClauseWriter.writeClause(C);
1796 Code = serialization::DECL_OMP_REQUIRES;
1799 void ASTDeclWriter::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) {
1801 Record.AddSourceLocation(D->getBeginLoc());
1802 Record.AddStmt(D->getCombinerIn());
1803 Record.AddStmt(D->getCombinerOut());
1804 Record.AddStmt(D->getCombiner());
1805 Record.AddStmt(D->getInitOrig());
1806 Record.AddStmt(D->getInitPriv());
1807 Record.AddStmt(D->getInitializer());
1808 Record.push_back(D->getInitializerKind());
1809 Record.AddDeclRef(D->getPrevDeclInScope());
1810 Code = serialization::DECL_OMP_DECLARE_REDUCTION;
1813 void ASTDeclWriter::VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D) {
1814 Record.push_back(D->clauselist_size());
1816 Record.AddSourceLocation(D->getBeginLoc());
1817 Record.AddStmt(D->getMapperVarRef());
1818 Record.AddDeclarationName(D->getVarName());
1819 Record.AddDeclRef(D->getPrevDeclInScope());
1820 OMPClauseWriter ClauseWriter(Record);
1821 for (OMPClause *C : D->clauselists())
1822 ClauseWriter.writeClause(C);
1823 Code = serialization::DECL_OMP_DECLARE_MAPPER;
1826 void ASTDeclWriter::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) {
1828 Code = serialization::DECL_OMP_CAPTUREDEXPR;
1831 //===----------------------------------------------------------------------===//
1832 // ASTWriter Implementation
1833 //===----------------------------------------------------------------------===//
1835 void ASTWriter::WriteDeclAbbrevs() {
1836 using namespace llvm;
1838 std::shared_ptr<BitCodeAbbrev> Abv;
1840 // Abbreviation for DECL_FIELD
1841 Abv = std::make_shared<BitCodeAbbrev>();
1842 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD));
1844 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1845 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1846 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1847 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1848 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1849 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1850 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1851 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1852 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1853 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1854 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1856 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1857 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1858 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1860 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1862 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1863 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1864 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TSIType
1866 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1867 Abv->Add(BitCodeAbbrevOp(0)); // InitStyle
1869 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1870 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1871 DeclFieldAbbrev = Stream.EmitAbbrev(std::move(Abv));
1873 // Abbreviation for DECL_OBJC_IVAR
1874 Abv = std::make_shared<BitCodeAbbrev>();
1875 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR));
1877 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1878 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1879 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1880 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1881 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1882 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1883 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1884 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1885 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1886 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1887 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1889 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1890 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1891 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1893 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1895 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1896 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1897 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TSIType
1899 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1900 Abv->Add(BitCodeAbbrevOp(0)); // InitStyle
1902 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl
1903 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize
1905 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1906 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1907 DeclObjCIvarAbbrev = Stream.EmitAbbrev(std::move(Abv));
1909 // Abbreviation for DECL_ENUM
1910 Abv = std::make_shared<BitCodeAbbrev>();
1911 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM));
1913 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1915 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1916 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1917 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1918 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1919 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1920 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1921 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1922 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1923 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1924 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1925 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1927 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1928 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1929 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1931 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1932 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1934 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1935 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1936 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
1937 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1938 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
1939 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired
1940 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1941 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1942 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind
1944 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef
1945 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType
1946 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType
1947 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits
1948 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits
1949 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped
1950 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag
1951 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed
1952 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));// ODRHash
1953 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum
1955 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1956 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1957 DeclEnumAbbrev = Stream.EmitAbbrev(std::move(Abv));
1959 // Abbreviation for DECL_RECORD
1960 Abv = std::make_shared<BitCodeAbbrev>();
1961 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD));
1963 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1965 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1966 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1967 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1968 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1969 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1970 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1971 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1972 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1973 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1974 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1975 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1977 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1978 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1979 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1981 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1982 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1984 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1985 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1986 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
1987 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1988 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
1989 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired
1990 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1991 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1992 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind
1994 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember
1995 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion
1996 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember
1997 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasVolatileMember
1999 // isNonTrivialToPrimitiveDefaultInitialize
2000 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1));
2001 // isNonTrivialToPrimitiveCopy
2002 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1));
2003 // isNonTrivialToPrimitiveDestroy
2004 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1));
2005 // hasNonTrivialToPrimitiveDefaultInitializeCUnion
2006 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1));
2007 // hasNonTrivialToPrimitiveDestructCUnion
2008 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1));
2009 // hasNonTrivialToPrimitiveCopyCUnion
2010 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1));
2011 // isParamDestroyedInCallee
2012 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1));
2013 // getArgPassingRestrictions
2014 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2));
2017 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
2018 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
2019 DeclRecordAbbrev = Stream.EmitAbbrev(std::move(Abv));
2021 // Abbreviation for DECL_PARM_VAR
2022 Abv = std::make_shared<BitCodeAbbrev>();
2023 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR));
2025 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
2027 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
2028 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
2029 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
2030 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
2031 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
2032 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
2033 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
2034 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
2035 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
2036 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
2037 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
2039 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
2040 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
2041 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
2043 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2045 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
2046 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
2047 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TSIType
2049 Abv->Add(BitCodeAbbrevOp(0)); // SClass
2050 Abv->Add(BitCodeAbbrevOp(0)); // TSCSpec
2051 Abv->Add(BitCodeAbbrevOp(0)); // InitStyle
2052 Abv->Add(BitCodeAbbrevOp(0)); // ARCPseudoStrong
2053 Abv->Add(BitCodeAbbrevOp(0)); // Linkage
2054 Abv->Add(BitCodeAbbrevOp(0)); // HasInit
2055 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo
2057 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter
2058 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth
2059 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex
2060 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier
2061 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted
2062 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg
2063 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg
2065 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
2066 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
2067 DeclParmVarAbbrev = Stream.EmitAbbrev(std::move(Abv));
2069 // Abbreviation for DECL_TYPEDEF
2070 Abv = std::make_shared<BitCodeAbbrev>();
2071 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF));
2073 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
2075 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
2076 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
2077 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
2078 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
2079 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
2080 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isUsed
2081 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isReferenced
2082 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
2083 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // C++ AccessSpecifier
2084 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
2085 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
2087 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
2088 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
2089 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
2091 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
2092 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
2094 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
2095 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
2096 DeclTypedefAbbrev = Stream.EmitAbbrev(std::move(Abv));
2098 // Abbreviation for DECL_VAR
2099 Abv = std::make_shared<BitCodeAbbrev>();
2100 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR));
2102 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
2104 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
2105 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
2106 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
2107 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
2108 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
2109 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
2110 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
2111 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
2112 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
2113 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
2114 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
2116 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
2117 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
2118 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
2120 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2122 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
2123 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
2124 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TSIType
2126 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // SClass
2127 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // TSCSpec
2128 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // InitStyle
2129 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong
2130 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsThisDeclarationADemotedDefinition
2131 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable
2132 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable
2133 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl
2134 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isObjCForDecl
2135 Abv->Add(BitCodeAbbrevOp(0)); // isInline
2136 Abv->Add(BitCodeAbbrevOp(0)); // isInlineSpecified
2137 Abv->Add(BitCodeAbbrevOp(0)); // isConstexpr
2138 Abv->Add(BitCodeAbbrevOp(0)); // isInitCapture
2139 Abv->Add(BitCodeAbbrevOp(0)); // isPrevDeclInSameScope
2140 Abv->Add(BitCodeAbbrevOp(0)); // ImplicitParamKind
2141 Abv->Add(BitCodeAbbrevOp(0)); // EscapingByref
2142 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage
2143 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // IsInitICE (local)
2144 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // VarKind (local enum)
2146 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
2147 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
2148 DeclVarAbbrev = Stream.EmitAbbrev(std::move(Abv));
2150 // Abbreviation for DECL_CXX_METHOD
2151 Abv = std::make_shared<BitCodeAbbrev>();
2152 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CXX_METHOD));
2154 Abv->Add(BitCodeAbbrevOp(0)); // CanonicalDecl
2156 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
2157 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
2158 Abv->Add(BitCodeAbbrevOp(0)); // Invalid
2159 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
2160 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Implicit
2161 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Used
2162 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Referenced
2163 Abv->Add(BitCodeAbbrevOp(0)); // InObjCContainer
2164 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Access
2165 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ModulePrivate
2166 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
2168 Abv->Add(BitCodeAbbrevOp(DeclarationName::Identifier)); // NameKind
2169 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Identifier
2170 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
2172 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2174 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerLocStart
2175 Abv->Add(BitCodeAbbrevOp(0)); // HasExtInfo
2176 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TSIType
2178 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 11)); // IDNS
2179 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // StorageClass
2180 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Inline
2181 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InlineSpecified
2182 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // VirtualAsWritten
2183 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Pure
2184 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedProto
2185 Abv->Add(BitCodeAbbrevOp(1)); // HasWrittenProto
2186 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Deleted
2187 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Trivial
2188 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // TrivialForCall
2189 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Defaulted
2190 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ExplicitlyDefaulted
2191 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ImplicitReturnZero
2192 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constexpr
2193 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // UsesSEHTry
2194 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // SkippedBody
2195 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // MultiVersion
2196 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // LateParsed
2197 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage
2198 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LocEnd
2199 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // ODRHash
2200 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // TemplateKind
2201 // This Array slurps the rest of the record. Fortunately we want to encode
2202 // (nearly) all the remaining (variable number of) fields in the same way.
2204 // This is the function template information if any, then
2205 // NumParams and Params[] from FunctionDecl, and
2206 // NumOverriddenMethods, OverriddenMethods[] from CXXMethodDecl.
2208 // Add an AbbrevOp for 'size then elements' and use it here.
2209 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
2210 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
2211 DeclCXXMethodAbbrev = Stream.EmitAbbrev(std::move(Abv));
2213 // Abbreviation for EXPR_DECL_REF
2214 Abv = std::make_shared<BitCodeAbbrev>();
2215 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF));
2217 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsOMPStructuredBlock
2219 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2220 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2221 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2222 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2223 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2224 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2225 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2227 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier
2228 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound
2229 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs
2230 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates
2231 Abv->Add(BitCodeAbbrevOp(0)); // RefersToEnclosingVariableOrCapture
2232 Abv->Add(BitCodeAbbrevOp(0)); // NonOdrUseReason
2233 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef
2234 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
2235 DeclRefExprAbbrev = Stream.EmitAbbrev(std::move(Abv));
2237 // Abbreviation for EXPR_INTEGER_LITERAL
2238 Abv = std::make_shared<BitCodeAbbrev>();
2239 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL));
2241 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsOMPStructuredBlock
2243 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2244 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2245 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2246 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2247 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2248 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2249 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2251 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
2252 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width
2253 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value
2254 IntegerLiteralAbbrev = Stream.EmitAbbrev(std::move(Abv));
2256 // Abbreviation for EXPR_CHARACTER_LITERAL
2257 Abv = std::make_shared<BitCodeAbbrev>();
2258 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL));
2260 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsOMPStructuredBlock
2262 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2263 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2264 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2265 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2266 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2267 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2268 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2270 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue
2271 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
2272 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // getKind
2273 CharacterLiteralAbbrev = Stream.EmitAbbrev(std::move(Abv));
2275 // Abbreviation for EXPR_IMPLICIT_CAST
2276 Abv = std::make_shared<BitCodeAbbrev>();
2277 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_IMPLICIT_CAST));
2279 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsOMPStructuredBlock
2281 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2282 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2283 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2284 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2285 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2286 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2287 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2289 Abv->Add(BitCodeAbbrevOp(0)); // PathSize
2290 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 6)); // CastKind
2291 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // PartOfExplicitCast
2293 ExprImplicitCastAbbrev = Stream.EmitAbbrev(std::move(Abv));
2295 Abv = std::make_shared<BitCodeAbbrev>();
2296 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL));
2297 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2298 DeclContextLexicalAbbrev = Stream.EmitAbbrev(std::move(Abv));
2300 Abv = std::make_shared<BitCodeAbbrev>();
2301 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE));
2302 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2303 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(std::move(Abv));
2306 /// isRequiredDecl - Check if this is a "required" Decl, which must be seen by
2307 /// consumers of the AST.
2309 /// Such decls will always be deserialized from the AST file, so we would like
2310 /// this to be as restrictive as possible. Currently the predicate is driven by
2311 /// code generation requirements, if other clients have a different notion of
2312 /// what is "required" then we may have to consider an alternate scheme where
2313 /// clients can iterate over the top-level decls and get information on them,
2314 /// without necessary deserializing them. We could explicitly require such
2315 /// clients to use a separate API call to "realize" the decl. This should be
2316 /// relatively painless since they would presumably only do it for top-level
2318 static bool isRequiredDecl(const Decl *D, ASTContext &Context,
2319 bool WritingModule) {
2320 // An ObjCMethodDecl is never considered as "required" because its
2321 // implementation container always is.
2323 // File scoped assembly or obj-c or OMP declare target implementation must be
2325 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D))
2328 if (WritingModule && isPartOfPerModuleInitializer(D)) {
2329 // These declarations are part of the module initializer, and are emitted
2330 // if and when the module is imported, rather than being emitted eagerly.
2334 return Context.DeclMustBeEmitted(D);
2337 void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) {
2338 PrettyDeclStackTraceEntry CrashInfo(Context, D, SourceLocation(),
2341 // Determine the ID for this declaration.
2342 serialization::DeclID ID;
2343 assert(!D->isFromASTFile() && "should not be emitting imported decl");
2344 serialization::DeclID &IDR = DeclIDs[D];
2350 assert(ID >= FirstDeclID && "invalid decl ID");
2353 ASTDeclWriter W(*this, Context, Record);
2355 // Build a record for this declaration
2358 // Emit this declaration to the bitstream.
2359 uint64_t Offset = W.Emit(D);
2361 // Record the offset for this declaration
2362 SourceLocation Loc = D->getLocation();
2363 unsigned Index = ID - FirstDeclID;
2364 if (DeclOffsets.size() == Index)
2365 DeclOffsets.push_back(DeclOffset(Loc, Offset));
2366 else if (DeclOffsets.size() < Index) {
2367 // FIXME: Can/should this happen?
2368 DeclOffsets.resize(Index+1);
2369 DeclOffsets[Index].setLocation(Loc);
2370 DeclOffsets[Index].BitOffset = Offset;
2372 llvm_unreachable("declarations should be emitted in ID order");
2375 SourceManager &SM = Context.getSourceManager();
2376 if (Loc.isValid() && SM.isLocalSourceLocation(Loc))
2377 associateDeclWithFile(D, ID);
2379 // Note declarations that should be deserialized eagerly so that we can add
2380 // them to a record in the AST file later.
2381 if (isRequiredDecl(D, Context, WritingModule))
2382 EagerlyDeserializedDecls.push_back(ID);
2385 void ASTRecordWriter::AddFunctionDefinition(const FunctionDecl *FD) {
2386 // Switch case IDs are per function body.
2387 Writer->ClearSwitchCaseIDs();
2389 assert(FD->doesThisDeclarationHaveABody());
2390 bool ModulesCodegen = false;
2391 if (Writer->WritingModule && !FD->isDependentContext()) {
2392 Optional<GVALinkage> Linkage;
2393 if (Writer->WritingModule->Kind == Module::ModuleInterfaceUnit) {
2394 // When building a C++ Modules TS module interface unit, a strong
2395 // definition in the module interface is provided by the compilation of
2396 // that module interface unit, not by its users. (Inline functions are
2397 // still emitted in module users.)
2398 Linkage = Writer->Context->GetGVALinkageForFunction(FD);
2399 ModulesCodegen = *Linkage == GVA_StrongExternal;
2401 if (Writer->Context->getLangOpts().ModulesCodegen) {
2402 // Under -fmodules-codegen, codegen is performed for all non-internal,
2403 // non-always_inline functions.
2404 if (!FD->hasAttr<AlwaysInlineAttr>()) {
2406 Linkage = Writer->Context->GetGVALinkageForFunction(FD);
2407 ModulesCodegen = *Linkage != GVA_Internal;
2411 Record->push_back(ModulesCodegen);
2413 Writer->ModularCodegenDecls.push_back(Writer->GetDeclRef(FD));
2414 if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) {
2415 Record->push_back(CD->getNumCtorInitializers());
2416 if (CD->getNumCtorInitializers())
2417 AddCXXCtorInitializers(
2418 llvm::makeArrayRef(CD->init_begin(), CD->init_end()));
2420 AddStmt(FD->getBody());