1 //===--- ASTWriterDecl.cpp - Declaration Serialization --------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements serialization for Declarations.
12 //===----------------------------------------------------------------------===//
14 #include "ASTCommon.h"
15 #include "clang/AST/DeclCXX.h"
16 #include "clang/AST/DeclContextInternals.h"
17 #include "clang/AST/DeclTemplate.h"
18 #include "clang/AST/DeclVisitor.h"
19 #include "clang/AST/Expr.h"
20 #include "clang/Basic/SourceManager.h"
21 #include "clang/Serialization/ASTReader.h"
22 #include "clang/Serialization/ASTWriter.h"
23 #include "llvm/Bitcode/BitstreamWriter.h"
24 #include "llvm/Support/ErrorHandling.h"
25 using namespace clang;
26 using namespace serialization;
28 //===----------------------------------------------------------------------===//
29 // Declaration serialization
30 //===----------------------------------------------------------------------===//
33 class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> {
36 ASTRecordWriter Record;
38 serialization::DeclCode Code;
42 ASTDeclWriter(ASTWriter &Writer, ASTContext &Context,
43 ASTWriter::RecordDataImpl &Record)
44 : Writer(Writer), Context(Context), Record(Writer, Record),
45 Code((serialization::DeclCode)0), AbbrevToUse(0) {}
47 uint64_t Emit(Decl *D) {
49 llvm::report_fatal_error(StringRef("unexpected declaration kind '") +
50 D->getDeclKindName() + "'");
51 return Record.Emit(Code, AbbrevToUse);
56 void VisitDecl(Decl *D);
57 void VisitPragmaCommentDecl(PragmaCommentDecl *D);
58 void VisitPragmaDetectMismatchDecl(PragmaDetectMismatchDecl *D);
59 void VisitTranslationUnitDecl(TranslationUnitDecl *D);
60 void VisitNamedDecl(NamedDecl *D);
61 void VisitLabelDecl(LabelDecl *LD);
62 void VisitNamespaceDecl(NamespaceDecl *D);
63 void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
64 void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
65 void VisitTypeDecl(TypeDecl *D);
66 void VisitTypedefNameDecl(TypedefNameDecl *D);
67 void VisitTypedefDecl(TypedefDecl *D);
68 void VisitTypeAliasDecl(TypeAliasDecl *D);
69 void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D);
70 void VisitTagDecl(TagDecl *D);
71 void VisitEnumDecl(EnumDecl *D);
72 void VisitRecordDecl(RecordDecl *D);
73 void VisitCXXRecordDecl(CXXRecordDecl *D);
74 void VisitClassTemplateSpecializationDecl(
75 ClassTemplateSpecializationDecl *D);
76 void VisitClassTemplatePartialSpecializationDecl(
77 ClassTemplatePartialSpecializationDecl *D);
78 void VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D);
79 void VisitVarTemplatePartialSpecializationDecl(
80 VarTemplatePartialSpecializationDecl *D);
81 void VisitClassScopeFunctionSpecializationDecl(
82 ClassScopeFunctionSpecializationDecl *D);
83 void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
84 void VisitValueDecl(ValueDecl *D);
85 void VisitEnumConstantDecl(EnumConstantDecl *D);
86 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
87 void VisitDeclaratorDecl(DeclaratorDecl *D);
88 void VisitFunctionDecl(FunctionDecl *D);
89 void VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D);
90 void VisitCXXMethodDecl(CXXMethodDecl *D);
91 void VisitCXXConstructorDecl(CXXConstructorDecl *D);
92 void VisitCXXDestructorDecl(CXXDestructorDecl *D);
93 void VisitCXXConversionDecl(CXXConversionDecl *D);
94 void VisitFieldDecl(FieldDecl *D);
95 void VisitMSPropertyDecl(MSPropertyDecl *D);
96 void VisitIndirectFieldDecl(IndirectFieldDecl *D);
97 void VisitVarDecl(VarDecl *D);
98 void VisitImplicitParamDecl(ImplicitParamDecl *D);
99 void VisitParmVarDecl(ParmVarDecl *D);
100 void VisitDecompositionDecl(DecompositionDecl *D);
101 void VisitBindingDecl(BindingDecl *D);
102 void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
103 void VisitTemplateDecl(TemplateDecl *D);
104 void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D);
105 void VisitClassTemplateDecl(ClassTemplateDecl *D);
106 void VisitVarTemplateDecl(VarTemplateDecl *D);
107 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
108 void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
109 void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D);
110 void VisitUsingDecl(UsingDecl *D);
111 void VisitUsingPackDecl(UsingPackDecl *D);
112 void VisitUsingShadowDecl(UsingShadowDecl *D);
113 void VisitConstructorUsingShadowDecl(ConstructorUsingShadowDecl *D);
114 void VisitLinkageSpecDecl(LinkageSpecDecl *D);
115 void VisitExportDecl(ExportDecl *D);
116 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D);
117 void VisitImportDecl(ImportDecl *D);
118 void VisitAccessSpecDecl(AccessSpecDecl *D);
119 void VisitFriendDecl(FriendDecl *D);
120 void VisitFriendTemplateDecl(FriendTemplateDecl *D);
121 void VisitStaticAssertDecl(StaticAssertDecl *D);
122 void VisitBlockDecl(BlockDecl *D);
123 void VisitCapturedDecl(CapturedDecl *D);
124 void VisitEmptyDecl(EmptyDecl *D);
126 void VisitDeclContext(DeclContext *DC);
127 template <typename T> void VisitRedeclarable(Redeclarable<T> *D);
130 // FIXME: Put in the same order is DeclNodes.td?
131 void VisitObjCMethodDecl(ObjCMethodDecl *D);
132 void VisitObjCTypeParamDecl(ObjCTypeParamDecl *D);
133 void VisitObjCContainerDecl(ObjCContainerDecl *D);
134 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
135 void VisitObjCIvarDecl(ObjCIvarDecl *D);
136 void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
137 void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
138 void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
139 void VisitObjCImplDecl(ObjCImplDecl *D);
140 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
141 void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
142 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
143 void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
144 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
145 void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D);
146 void VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D);
147 void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D);
149 /// Add an Objective-C type parameter list to the given record.
150 void AddObjCTypeParamList(ObjCTypeParamList *typeParams) {
151 // Empty type parameter list.
157 Record.push_back(typeParams->size());
158 for (auto typeParam : *typeParams) {
159 Record.AddDeclRef(typeParam);
161 Record.AddSourceLocation(typeParams->getLAngleLoc());
162 Record.AddSourceLocation(typeParams->getRAngleLoc());
165 /// Add to the record the first declaration from each module file that
166 /// provides a declaration of D. The intent is to provide a sufficient
167 /// set such that reloading this set will load all current redeclarations.
168 void AddFirstDeclFromEachModule(const Decl *D, bool IncludeLocal) {
169 llvm::MapVector<ModuleFile*, const Decl*> Firsts;
170 // FIXME: We can skip entries that we know are implied by others.
171 for (const Decl *R = D->getMostRecentDecl(); R; R = R->getPreviousDecl()) {
172 if (R->isFromASTFile())
173 Firsts[Writer.Chain->getOwningModuleFile(R)] = R;
174 else if (IncludeLocal)
177 for (const auto &F : Firsts)
178 Record.AddDeclRef(F.second);
181 /// Get the specialization decl from an entry in the specialization list.
182 template <typename EntryType>
183 typename RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::DeclType *
184 getSpecializationDecl(EntryType &T) {
185 return RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::getDecl(&T);
188 /// Get the list of partial specializations from a template's common ptr.
190 decltype(T::PartialSpecializations) &getPartialSpecializations(T *Common) {
191 return Common->PartialSpecializations;
193 ArrayRef<Decl> getPartialSpecializations(FunctionTemplateDecl::Common *) {
197 template<typename DeclTy>
198 void AddTemplateSpecializations(DeclTy *D) {
199 auto *Common = D->getCommonPtr();
201 // If we have any lazy specializations, and the external AST source is
202 // our chained AST reader, we can just write out the DeclIDs. Otherwise,
203 // we need to resolve them to actual declarations.
204 if (Writer.Chain != Writer.Context->getExternalSource() &&
205 Common->LazySpecializations) {
206 D->LoadLazySpecializations();
207 assert(!Common->LazySpecializations);
210 ArrayRef<DeclID> LazySpecializations;
211 if (auto *LS = Common->LazySpecializations)
212 LazySpecializations = llvm::makeArrayRef(LS + 1, LS[0]);
214 // Add a slot to the record for the number of specializations.
215 unsigned I = Record.size();
218 // AddFirstDeclFromEachModule might trigger deserialization, invalidating
219 // *Specializations iterators.
220 llvm::SmallVector<const Decl*, 16> Specs;
221 for (auto &Entry : Common->Specializations)
222 Specs.push_back(getSpecializationDecl(Entry));
223 for (auto &Entry : getPartialSpecializations(Common))
224 Specs.push_back(getSpecializationDecl(Entry));
226 for (auto *D : Specs) {
227 assert(D->isCanonicalDecl() && "non-canonical decl in set");
228 AddFirstDeclFromEachModule(D, /*IncludeLocal*/true);
230 Record.append(LazySpecializations.begin(), LazySpecializations.end());
232 // Update the size entry we added earlier.
233 Record[I] = Record.size() - I - 1;
236 /// Ensure that this template specialization is associated with the specified
237 /// template on reload.
238 void RegisterTemplateSpecialization(const Decl *Template,
239 const Decl *Specialization) {
240 Template = Template->getCanonicalDecl();
242 // If the canonical template is local, we'll write out this specialization
244 // FIXME: We can do the same thing if there is any local declaration of
245 // the template, to avoid emitting an update record.
246 if (!Template->isFromASTFile())
249 // We only need to associate the first local declaration of the
250 // specialization. The other declarations will get pulled in by it.
251 if (Writer.getFirstLocalDecl(Specialization) != Specialization)
254 Writer.DeclUpdates[Template].push_back(ASTWriter::DeclUpdate(
255 UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION, Specialization));
260 void ASTDeclWriter::Visit(Decl *D) {
261 DeclVisitor<ASTDeclWriter>::Visit(D);
263 // Source locations require array (variable-length) abbreviations. The
264 // abbreviation infrastructure requires that arrays are encoded last, so
265 // we handle it here in the case of those classes derived from DeclaratorDecl
266 if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)) {
267 Record.AddTypeSourceInfo(DD->getTypeSourceInfo());
270 // Handle FunctionDecl's body here and write it after all other Stmts/Exprs
271 // have been written. We want it last because we will not read it back when
272 // retrieving it from the AST, we'll just lazily set the offset.
273 if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
274 Record.push_back(FD->doesThisDeclarationHaveABody());
275 if (FD->doesThisDeclarationHaveABody())
276 Record.AddFunctionDefinition(FD);
279 // If this declaration is also a DeclContext, write blocks for the
280 // declarations that lexically stored inside its context and those
281 // declarations that are visible from its context.
282 if (DeclContext *DC = dyn_cast<DeclContext>(D))
283 VisitDeclContext(DC);
286 void ASTDeclWriter::VisitDecl(Decl *D) {
287 Record.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()));
288 if (D->getDeclContext() != D->getLexicalDeclContext())
289 Record.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()));
292 Record.push_back(D->isInvalidDecl());
293 Record.push_back(D->hasAttrs());
295 Record.AddAttributes(D->getAttrs());
296 Record.push_back(D->isImplicit());
297 Record.push_back(D->isUsed(false));
298 Record.push_back(D->isReferenced());
299 Record.push_back(D->isTopLevelDeclInObjCContainer());
300 Record.push_back(D->getAccess());
301 Record.push_back(D->isModulePrivate());
302 Record.push_back(Writer.getSubmoduleID(D->getOwningModule()));
304 // If this declaration injected a name into a context different from its
305 // lexical context, and that context is an imported namespace, we need to
306 // update its visible declarations to include this name.
308 // This happens when we instantiate a class with a friend declaration or a
309 // function with a local extern declaration, for instance.
311 // FIXME: Can we handle this in AddedVisibleDecl instead?
312 if (D->isOutOfLine()) {
313 auto *DC = D->getDeclContext();
314 while (auto *NS = dyn_cast<NamespaceDecl>(DC->getRedeclContext())) {
315 if (!NS->isFromASTFile())
317 Writer.UpdatedDeclContexts.insert(NS->getPrimaryContext());
318 if (!NS->isInlineNamespace())
320 DC = NS->getParent();
325 void ASTDeclWriter::VisitPragmaCommentDecl(PragmaCommentDecl *D) {
326 StringRef Arg = D->getArg();
327 Record.push_back(Arg.size());
329 Record.AddSourceLocation(D->getLocStart());
330 Record.push_back(D->getCommentKind());
331 Record.AddString(Arg);
332 Code = serialization::DECL_PRAGMA_COMMENT;
335 void ASTDeclWriter::VisitPragmaDetectMismatchDecl(
336 PragmaDetectMismatchDecl *D) {
337 StringRef Name = D->getName();
338 StringRef Value = D->getValue();
339 Record.push_back(Name.size() + 1 + Value.size());
341 Record.AddSourceLocation(D->getLocStart());
342 Record.AddString(Name);
343 Record.AddString(Value);
344 Code = serialization::DECL_PRAGMA_DETECT_MISMATCH;
347 void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
348 llvm_unreachable("Translation units aren't directly serialized");
351 void ASTDeclWriter::VisitNamedDecl(NamedDecl *D) {
353 Record.AddDeclarationName(D->getDeclName());
354 Record.push_back(needsAnonymousDeclarationNumber(D)
355 ? Writer.getAnonymousDeclarationNumber(D)
359 void ASTDeclWriter::VisitTypeDecl(TypeDecl *D) {
361 Record.AddSourceLocation(D->getLocStart());
362 Record.AddTypeRef(QualType(D->getTypeForDecl(), 0));
365 void ASTDeclWriter::VisitTypedefNameDecl(TypedefNameDecl *D) {
366 VisitRedeclarable(D);
368 Record.AddTypeSourceInfo(D->getTypeSourceInfo());
369 Record.push_back(D->isModed());
371 Record.AddTypeRef(D->getUnderlyingType());
372 Record.AddDeclRef(D->getAnonDeclWithTypedefName(false));
375 void ASTDeclWriter::VisitTypedefDecl(TypedefDecl *D) {
376 VisitTypedefNameDecl(D);
377 if (D->getDeclContext() == D->getLexicalDeclContext() &&
380 D->getFirstDecl() == D->getMostRecentDecl() &&
381 !D->isInvalidDecl() &&
382 !D->isTopLevelDeclInObjCContainer() &&
383 !D->isModulePrivate() &&
384 !needsAnonymousDeclarationNumber(D) &&
385 D->getDeclName().getNameKind() == DeclarationName::Identifier)
386 AbbrevToUse = Writer.getDeclTypedefAbbrev();
388 Code = serialization::DECL_TYPEDEF;
391 void ASTDeclWriter::VisitTypeAliasDecl(TypeAliasDecl *D) {
392 VisitTypedefNameDecl(D);
393 Record.AddDeclRef(D->getDescribedAliasTemplate());
394 Code = serialization::DECL_TYPEALIAS;
397 void ASTDeclWriter::VisitTagDecl(TagDecl *D) {
398 VisitRedeclarable(D);
400 Record.push_back(D->getIdentifierNamespace());
401 Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding
402 if (!isa<CXXRecordDecl>(D))
403 Record.push_back(D->isCompleteDefinition());
404 Record.push_back(D->isEmbeddedInDeclarator());
405 Record.push_back(D->isFreeStanding());
406 Record.push_back(D->isCompleteDefinitionRequired());
407 Record.AddSourceRange(D->getBraceRange());
409 if (D->hasExtInfo()) {
411 Record.AddQualifierInfo(*D->getExtInfo());
412 } else if (auto *TD = D->getTypedefNameForAnonDecl()) {
414 Record.AddDeclRef(TD);
415 Record.AddIdentifierRef(TD->getDeclName().getAsIdentifierInfo());
421 void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) {
423 Record.AddTypeSourceInfo(D->getIntegerTypeSourceInfo());
424 if (!D->getIntegerTypeSourceInfo())
425 Record.AddTypeRef(D->getIntegerType());
426 Record.AddTypeRef(D->getPromotionType());
427 Record.push_back(D->getNumPositiveBits());
428 Record.push_back(D->getNumNegativeBits());
429 Record.push_back(D->isScoped());
430 Record.push_back(D->isScopedUsingClassTag());
431 Record.push_back(D->isFixed());
432 if (MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo()) {
433 Record.AddDeclRef(MemberInfo->getInstantiatedFrom());
434 Record.push_back(MemberInfo->getTemplateSpecializationKind());
435 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation());
437 Record.AddDeclRef(nullptr);
440 if (D->getDeclContext() == D->getLexicalDeclContext() &&
445 !D->getTypedefNameForAnonDecl() &&
446 D->getFirstDecl() == D->getMostRecentDecl() &&
447 !D->isInvalidDecl() &&
448 !D->isReferenced() &&
449 !D->isTopLevelDeclInObjCContainer() &&
450 D->getAccess() == AS_none &&
451 !D->isModulePrivate() &&
452 !CXXRecordDecl::classofKind(D->getKind()) &&
453 !D->getIntegerTypeSourceInfo() &&
454 !D->getMemberSpecializationInfo() &&
455 !needsAnonymousDeclarationNumber(D) &&
456 D->getDeclName().getNameKind() == DeclarationName::Identifier)
457 AbbrevToUse = Writer.getDeclEnumAbbrev();
459 Code = serialization::DECL_ENUM;
462 void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) {
464 Record.push_back(D->hasFlexibleArrayMember());
465 Record.push_back(D->isAnonymousStructOrUnion());
466 Record.push_back(D->hasObjectMember());
467 Record.push_back(D->hasVolatileMember());
469 if (D->getDeclContext() == D->getLexicalDeclContext() &&
474 !D->getTypedefNameForAnonDecl() &&
475 D->getFirstDecl() == D->getMostRecentDecl() &&
476 !D->isInvalidDecl() &&
477 !D->isReferenced() &&
478 !D->isTopLevelDeclInObjCContainer() &&
479 D->getAccess() == AS_none &&
480 !D->isModulePrivate() &&
481 !CXXRecordDecl::classofKind(D->getKind()) &&
482 !needsAnonymousDeclarationNumber(D) &&
483 D->getDeclName().getNameKind() == DeclarationName::Identifier)
484 AbbrevToUse = Writer.getDeclRecordAbbrev();
486 Code = serialization::DECL_RECORD;
489 void ASTDeclWriter::VisitValueDecl(ValueDecl *D) {
491 Record.AddTypeRef(D->getType());
494 void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) {
496 Record.push_back(D->getInitExpr()? 1 : 0);
497 if (D->getInitExpr())
498 Record.AddStmt(D->getInitExpr());
499 Record.AddAPSInt(D->getInitVal());
501 Code = serialization::DECL_ENUM_CONSTANT;
504 void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) {
506 Record.AddSourceLocation(D->getInnerLocStart());
507 Record.push_back(D->hasExtInfo());
509 Record.AddQualifierInfo(*D->getExtInfo());
512 void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) {
513 VisitRedeclarable(D);
514 VisitDeclaratorDecl(D);
515 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName());
516 Record.push_back(D->getIdentifierNamespace());
518 // FunctionDecl's body is handled last at ASTWriterDecl::Visit,
519 // after everything else is written.
521 Record.push_back((int)D->SClass); // FIXME: stable encoding
522 Record.push_back(D->IsInline);
523 Record.push_back(D->IsInlineSpecified);
524 Record.push_back(D->IsExplicitSpecified);
525 Record.push_back(D->IsVirtualAsWritten);
526 Record.push_back(D->IsPure);
527 Record.push_back(D->HasInheritedPrototype);
528 Record.push_back(D->HasWrittenPrototype);
529 Record.push_back(D->IsDeleted);
530 Record.push_back(D->IsTrivial);
531 Record.push_back(D->IsDefaulted);
532 Record.push_back(D->IsExplicitlyDefaulted);
533 Record.push_back(D->HasImplicitReturnZero);
534 Record.push_back(D->IsConstexpr);
535 Record.push_back(D->UsesSEHTry);
536 Record.push_back(D->HasSkippedBody);
537 Record.push_back(D->IsLateTemplateParsed);
538 Record.push_back(D->getLinkageInternal());
539 Record.AddSourceLocation(D->getLocEnd());
541 Record.push_back(D->getODRHash());
543 Record.push_back(D->getTemplatedKind());
544 switch (D->getTemplatedKind()) {
545 case FunctionDecl::TK_NonTemplate:
547 case FunctionDecl::TK_FunctionTemplate:
548 Record.AddDeclRef(D->getDescribedFunctionTemplate());
550 case FunctionDecl::TK_MemberSpecialization: {
551 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo();
552 Record.AddDeclRef(MemberInfo->getInstantiatedFrom());
553 Record.push_back(MemberInfo->getTemplateSpecializationKind());
554 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation());
557 case FunctionDecl::TK_FunctionTemplateSpecialization: {
558 FunctionTemplateSpecializationInfo *
559 FTSInfo = D->getTemplateSpecializationInfo();
561 RegisterTemplateSpecialization(FTSInfo->getTemplate(), D);
563 Record.AddDeclRef(FTSInfo->getTemplate());
564 Record.push_back(FTSInfo->getTemplateSpecializationKind());
566 // Template arguments.
567 Record.AddTemplateArgumentList(FTSInfo->TemplateArguments);
569 // Template args as written.
570 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != nullptr);
571 if (FTSInfo->TemplateArgumentsAsWritten) {
572 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs);
573 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs;
575 Record.AddTemplateArgumentLoc(
576 (*FTSInfo->TemplateArgumentsAsWritten)[i]);
577 Record.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc);
578 Record.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc);
581 Record.AddSourceLocation(FTSInfo->getPointOfInstantiation());
583 if (D->isCanonicalDecl()) {
584 // Write the template that contains the specializations set. We will
585 // add a FunctionTemplateSpecializationInfo to it when reading.
586 Record.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl());
590 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
591 DependentFunctionTemplateSpecializationInfo *
592 DFTSInfo = D->getDependentSpecializationInfo();
595 Record.push_back(DFTSInfo->getNumTemplates());
596 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i)
597 Record.AddDeclRef(DFTSInfo->getTemplate(i));
600 Record.push_back(DFTSInfo->getNumTemplateArgs());
601 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i)
602 Record.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i));
603 Record.AddSourceLocation(DFTSInfo->getLAngleLoc());
604 Record.AddSourceLocation(DFTSInfo->getRAngleLoc());
609 Record.push_back(D->param_size());
610 for (auto P : D->parameters())
611 Record.AddDeclRef(P);
612 Code = serialization::DECL_FUNCTION;
615 void ASTDeclWriter::VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D) {
616 VisitFunctionDecl(D);
617 Record.push_back(D->IsCopyDeductionCandidate);
618 Code = serialization::DECL_CXX_DEDUCTION_GUIDE;
621 void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
623 // FIXME: convert to LazyStmtPtr?
624 // Unlike C/C++, method bodies will never be in header files.
625 bool HasBodyStuff = D->getBody() != nullptr ||
626 D->getSelfDecl() != nullptr || D->getCmdDecl() != nullptr;
627 Record.push_back(HasBodyStuff);
629 Record.AddStmt(D->getBody());
630 Record.AddDeclRef(D->getSelfDecl());
631 Record.AddDeclRef(D->getCmdDecl());
633 Record.push_back(D->isInstanceMethod());
634 Record.push_back(D->isVariadic());
635 Record.push_back(D->isPropertyAccessor());
636 Record.push_back(D->isDefined());
637 Record.push_back(D->IsOverriding);
638 Record.push_back(D->HasSkippedBody);
640 Record.push_back(D->IsRedeclaration);
641 Record.push_back(D->HasRedeclaration);
642 if (D->HasRedeclaration) {
643 assert(Context.getObjCMethodRedeclaration(D));
644 Record.AddDeclRef(Context.getObjCMethodRedeclaration(D));
647 // FIXME: stable encoding for @required/@optional
648 Record.push_back(D->getImplementationControl());
649 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway/nullability
650 Record.push_back(D->getObjCDeclQualifier());
651 Record.push_back(D->hasRelatedResultType());
652 Record.AddTypeRef(D->getReturnType());
653 Record.AddTypeSourceInfo(D->getReturnTypeSourceInfo());
654 Record.AddSourceLocation(D->getLocEnd());
655 Record.push_back(D->param_size());
656 for (const auto *P : D->parameters())
657 Record.AddDeclRef(P);
659 Record.push_back(D->SelLocsKind);
660 unsigned NumStoredSelLocs = D->getNumStoredSelLocs();
661 SourceLocation *SelLocs = D->getStoredSelLocs();
662 Record.push_back(NumStoredSelLocs);
663 for (unsigned i = 0; i != NumStoredSelLocs; ++i)
664 Record.AddSourceLocation(SelLocs[i]);
666 Code = serialization::DECL_OBJC_METHOD;
669 void ASTDeclWriter::VisitObjCTypeParamDecl(ObjCTypeParamDecl *D) {
670 VisitTypedefNameDecl(D);
671 Record.push_back(D->Variance);
672 Record.push_back(D->Index);
673 Record.AddSourceLocation(D->VarianceLoc);
674 Record.AddSourceLocation(D->ColonLoc);
676 Code = serialization::DECL_OBJC_TYPE_PARAM;
679 void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) {
681 Record.AddSourceLocation(D->getAtStartLoc());
682 Record.AddSourceRange(D->getAtEndRange());
683 // Abstract class (no need to define a stable serialization::DECL code).
686 void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
687 VisitRedeclarable(D);
688 VisitObjCContainerDecl(D);
689 Record.AddTypeRef(QualType(D->getTypeForDecl(), 0));
690 AddObjCTypeParamList(D->TypeParamList);
692 Record.push_back(D->isThisDeclarationADefinition());
693 if (D->isThisDeclarationADefinition()) {
694 // Write the DefinitionData
695 ObjCInterfaceDecl::DefinitionData &Data = D->data();
697 Record.AddTypeSourceInfo(D->getSuperClassTInfo());
698 Record.AddSourceLocation(D->getEndOfDefinitionLoc());
699 Record.push_back(Data.HasDesignatedInitializers);
701 // Write out the protocols that are directly referenced by the @interface.
702 Record.push_back(Data.ReferencedProtocols.size());
703 for (const auto *P : D->protocols())
704 Record.AddDeclRef(P);
705 for (const auto &PL : D->protocol_locs())
706 Record.AddSourceLocation(PL);
708 // Write out the protocols that are transitively referenced.
709 Record.push_back(Data.AllReferencedProtocols.size());
710 for (ObjCList<ObjCProtocolDecl>::iterator
711 P = Data.AllReferencedProtocols.begin(),
712 PEnd = Data.AllReferencedProtocols.end();
714 Record.AddDeclRef(*P);
717 if (ObjCCategoryDecl *Cat = D->getCategoryListRaw()) {
718 // Ensure that we write out the set of categories for this class.
719 Writer.ObjCClassesWithCategories.insert(D);
721 // Make sure that the categories get serialized.
722 for (; Cat; Cat = Cat->getNextClassCategoryRaw())
723 (void)Writer.GetDeclRef(Cat);
727 Code = serialization::DECL_OBJC_INTERFACE;
730 void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
732 // FIXME: stable encoding for @public/@private/@protected/@package
733 Record.push_back(D->getAccessControl());
734 Record.push_back(D->getSynthesize());
736 if (D->getDeclContext() == D->getLexicalDeclContext() &&
740 !D->isInvalidDecl() &&
741 !D->isReferenced() &&
742 !D->isModulePrivate() &&
746 AbbrevToUse = Writer.getDeclObjCIvarAbbrev();
748 Code = serialization::DECL_OBJC_IVAR;
751 void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
752 VisitRedeclarable(D);
753 VisitObjCContainerDecl(D);
755 Record.push_back(D->isThisDeclarationADefinition());
756 if (D->isThisDeclarationADefinition()) {
757 Record.push_back(D->protocol_size());
758 for (const auto *I : D->protocols())
759 Record.AddDeclRef(I);
760 for (const auto &PL : D->protocol_locs())
761 Record.AddSourceLocation(PL);
764 Code = serialization::DECL_OBJC_PROTOCOL;
767 void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) {
769 Code = serialization::DECL_OBJC_AT_DEFS_FIELD;
772 void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
773 VisitObjCContainerDecl(D);
774 Record.AddSourceLocation(D->getCategoryNameLoc());
775 Record.AddSourceLocation(D->getIvarLBraceLoc());
776 Record.AddSourceLocation(D->getIvarRBraceLoc());
777 Record.AddDeclRef(D->getClassInterface());
778 AddObjCTypeParamList(D->TypeParamList);
779 Record.push_back(D->protocol_size());
780 for (const auto *I : D->protocols())
781 Record.AddDeclRef(I);
782 for (const auto &PL : D->protocol_locs())
783 Record.AddSourceLocation(PL);
784 Code = serialization::DECL_OBJC_CATEGORY;
787 void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) {
789 Record.AddDeclRef(D->getClassInterface());
790 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS;
793 void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
795 Record.AddSourceLocation(D->getAtLoc());
796 Record.AddSourceLocation(D->getLParenLoc());
797 Record.AddTypeRef(D->getType());
798 Record.AddTypeSourceInfo(D->getTypeSourceInfo());
799 // FIXME: stable encoding
800 Record.push_back((unsigned)D->getPropertyAttributes());
801 Record.push_back((unsigned)D->getPropertyAttributesAsWritten());
802 // FIXME: stable encoding
803 Record.push_back((unsigned)D->getPropertyImplementation());
804 Record.AddDeclarationName(D->getGetterName());
805 Record.AddSourceLocation(D->getGetterNameLoc());
806 Record.AddDeclarationName(D->getSetterName());
807 Record.AddSourceLocation(D->getSetterNameLoc());
808 Record.AddDeclRef(D->getGetterMethodDecl());
809 Record.AddDeclRef(D->getSetterMethodDecl());
810 Record.AddDeclRef(D->getPropertyIvarDecl());
811 Code = serialization::DECL_OBJC_PROPERTY;
814 void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) {
815 VisitObjCContainerDecl(D);
816 Record.AddDeclRef(D->getClassInterface());
817 // Abstract class (no need to define a stable serialization::DECL code).
820 void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
821 VisitObjCImplDecl(D);
822 Record.AddSourceLocation(D->getCategoryNameLoc());
823 Code = serialization::DECL_OBJC_CATEGORY_IMPL;
826 void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
827 VisitObjCImplDecl(D);
828 Record.AddDeclRef(D->getSuperClass());
829 Record.AddSourceLocation(D->getSuperClassLoc());
830 Record.AddSourceLocation(D->getIvarLBraceLoc());
831 Record.AddSourceLocation(D->getIvarRBraceLoc());
832 Record.push_back(D->hasNonZeroConstructors());
833 Record.push_back(D->hasDestructors());
834 Record.push_back(D->NumIvarInitializers);
835 if (D->NumIvarInitializers)
836 Record.AddCXXCtorInitializers(
837 llvm::makeArrayRef(D->init_begin(), D->init_end()));
838 Code = serialization::DECL_OBJC_IMPLEMENTATION;
841 void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
843 Record.AddSourceLocation(D->getLocStart());
844 Record.AddDeclRef(D->getPropertyDecl());
845 Record.AddDeclRef(D->getPropertyIvarDecl());
846 Record.AddSourceLocation(D->getPropertyIvarDeclLoc());
847 Record.AddStmt(D->getGetterCXXConstructor());
848 Record.AddStmt(D->getSetterCXXAssignment());
849 Code = serialization::DECL_OBJC_PROPERTY_IMPL;
852 void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) {
853 VisitDeclaratorDecl(D);
854 Record.push_back(D->isMutable());
856 FieldDecl::InitStorageKind ISK = D->InitStorage.getInt();
857 Record.push_back(ISK);
858 if (ISK == FieldDecl::ISK_CapturedVLAType)
859 Record.AddTypeRef(QualType(D->getCapturedVLAType(), 0));
861 Record.AddStmt(D->getInClassInitializer());
863 Record.AddStmt(D->getBitWidth());
865 if (!D->getDeclName())
866 Record.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D));
868 if (D->getDeclContext() == D->getLexicalDeclContext() &&
872 !D->isInvalidDecl() &&
873 !D->isReferenced() &&
874 !D->isTopLevelDeclInObjCContainer() &&
875 !D->isModulePrivate() &&
877 !D->hasInClassInitializer() &&
878 !D->hasCapturedVLAType() &&
880 !ObjCIvarDecl::classofKind(D->getKind()) &&
881 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) &&
883 AbbrevToUse = Writer.getDeclFieldAbbrev();
885 Code = serialization::DECL_FIELD;
888 void ASTDeclWriter::VisitMSPropertyDecl(MSPropertyDecl *D) {
889 VisitDeclaratorDecl(D);
890 Record.AddIdentifierRef(D->getGetterId());
891 Record.AddIdentifierRef(D->getSetterId());
892 Code = serialization::DECL_MS_PROPERTY;
895 void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) {
897 Record.push_back(D->getChainingSize());
899 for (const auto *P : D->chain())
900 Record.AddDeclRef(P);
901 Code = serialization::DECL_INDIRECTFIELD;
904 void ASTDeclWriter::VisitVarDecl(VarDecl *D) {
905 VisitRedeclarable(D);
906 VisitDeclaratorDecl(D);
907 Record.push_back(D->getStorageClass());
908 Record.push_back(D->getTSCSpec());
909 Record.push_back(D->getInitStyle());
910 if (!isa<ParmVarDecl>(D)) {
911 Record.push_back(D->isThisDeclarationADemotedDefinition());
912 Record.push_back(D->isExceptionVariable());
913 Record.push_back(D->isNRVOVariable());
914 Record.push_back(D->isCXXForRangeDecl());
915 Record.push_back(D->isARCPseudoStrong());
916 Record.push_back(D->isInline());
917 Record.push_back(D->isInlineSpecified());
918 Record.push_back(D->isConstexpr());
919 Record.push_back(D->isInitCapture());
920 Record.push_back(D->isPreviousDeclInSameBlockScope());
921 if (const auto *IPD = dyn_cast<ImplicitParamDecl>(D))
922 Record.push_back(static_cast<unsigned>(IPD->getParameterKind()));
926 Record.push_back(D->getLinkageInternal());
929 Record.push_back(!D->isInitKnownICE() ? 1 : (D->isInitICE() ? 3 : 2));
930 Record.AddStmt(D->getInit());
935 if (D->getStorageDuration() == SD_Static) {
936 bool ModulesCodegen = false;
937 if (Writer.WritingModule &&
938 !D->getDescribedVarTemplate() && !D->getMemberSpecializationInfo() &&
939 !isa<VarTemplateSpecializationDecl>(D)) {
940 // When building a C++ Modules TS module interface unit, a strong
941 // definition in the module interface is provided by the compilation of
942 // that module interface unit, not by its users. (Inline variables are
943 // still emitted in module users.)
945 (Writer.WritingModule->Kind == Module::ModuleInterfaceUnit &&
946 Writer.Context->GetGVALinkageForVariable(D) == GVA_StrongExternal);
948 Record.push_back(ModulesCodegen);
950 Writer.ModularCodegenDecls.push_back(Writer.GetDeclRef(D));
954 VarNotTemplate = 0, VarTemplate, StaticDataMemberSpecialization
956 if (VarTemplateDecl *TemplD = D->getDescribedVarTemplate()) {
957 Record.push_back(VarTemplate);
958 Record.AddDeclRef(TemplD);
959 } else if (MemberSpecializationInfo *SpecInfo
960 = D->getMemberSpecializationInfo()) {
961 Record.push_back(StaticDataMemberSpecialization);
962 Record.AddDeclRef(SpecInfo->getInstantiatedFrom());
963 Record.push_back(SpecInfo->getTemplateSpecializationKind());
964 Record.AddSourceLocation(SpecInfo->getPointOfInstantiation());
966 Record.push_back(VarNotTemplate);
969 if (D->getDeclContext() == D->getLexicalDeclContext() &&
973 !D->isInvalidDecl() &&
974 !D->isReferenced() &&
975 !D->isTopLevelDeclInObjCContainer() &&
976 D->getAccess() == AS_none &&
977 !D->isModulePrivate() &&
978 !needsAnonymousDeclarationNumber(D) &&
979 D->getDeclName().getNameKind() == DeclarationName::Identifier &&
981 D->getFirstDecl() == D->getMostRecentDecl() &&
982 D->getKind() == Decl::Var &&
985 !D->isInitCapture() &&
986 !D->isPreviousDeclInSameBlockScope() &&
987 D->getStorageDuration() != SD_Static &&
988 !D->getMemberSpecializationInfo())
989 AbbrevToUse = Writer.getDeclVarAbbrev();
991 Code = serialization::DECL_VAR;
994 void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
996 Code = serialization::DECL_IMPLICIT_PARAM;
999 void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) {
1001 Record.push_back(D->isObjCMethodParameter());
1002 Record.push_back(D->getFunctionScopeDepth());
1003 Record.push_back(D->getFunctionScopeIndex());
1004 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding
1005 Record.push_back(D->isKNRPromoted());
1006 Record.push_back(D->hasInheritedDefaultArg());
1007 Record.push_back(D->hasUninstantiatedDefaultArg());
1008 if (D->hasUninstantiatedDefaultArg())
1009 Record.AddStmt(D->getUninstantiatedDefaultArg());
1010 Code = serialization::DECL_PARM_VAR;
1012 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl
1014 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here
1015 // we dynamically check for the properties that we optimize for, but don't
1016 // know are true of all PARM_VAR_DECLs.
1017 if (D->getDeclContext() == D->getLexicalDeclContext() &&
1021 !D->isUsed(false) &&
1022 !D->isInvalidDecl() &&
1023 !D->isReferenced() &&
1024 D->getAccess() == AS_none &&
1025 !D->isModulePrivate() &&
1026 D->getStorageClass() == 0 &&
1027 D->getInitStyle() == VarDecl::CInit && // Can params have anything else?
1028 D->getFunctionScopeDepth() == 0 &&
1029 D->getObjCDeclQualifier() == 0 &&
1030 !D->isKNRPromoted() &&
1031 !D->hasInheritedDefaultArg() &&
1032 D->getInit() == nullptr &&
1033 !D->hasUninstantiatedDefaultArg()) // No default expr.
1034 AbbrevToUse = Writer.getDeclParmVarAbbrev();
1036 // Check things we know are true of *every* PARM_VAR_DECL, which is more than
1037 // just us assuming it.
1038 assert(!D->getTSCSpec() && "PARM_VAR_DECL can't use TLS");
1039 assert(!D->isThisDeclarationADemotedDefinition()
1040 && "PARM_VAR_DECL can't be demoted definition.");
1041 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private");
1042 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var");
1043 assert(D->getPreviousDecl() == nullptr && "PARM_VAR_DECL can't be redecl");
1044 assert(!D->isStaticDataMember() &&
1045 "PARM_VAR_DECL can't be static data member");
1048 void ASTDeclWriter::VisitDecompositionDecl(DecompositionDecl *D) {
1049 // Record the number of bindings first to simplify deserialization.
1050 Record.push_back(D->bindings().size());
1053 for (auto *B : D->bindings())
1054 Record.AddDeclRef(B);
1055 Code = serialization::DECL_DECOMPOSITION;
1058 void ASTDeclWriter::VisitBindingDecl(BindingDecl *D) {
1060 Record.AddStmt(D->getBinding());
1061 Code = serialization::DECL_BINDING;
1064 void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
1066 Record.AddStmt(D->getAsmString());
1067 Record.AddSourceLocation(D->getRParenLoc());
1068 Code = serialization::DECL_FILE_SCOPE_ASM;
1071 void ASTDeclWriter::VisitEmptyDecl(EmptyDecl *D) {
1073 Code = serialization::DECL_EMPTY;
1076 void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) {
1078 Record.AddStmt(D->getBody());
1079 Record.AddTypeSourceInfo(D->getSignatureAsWritten());
1080 Record.push_back(D->param_size());
1081 for (ParmVarDecl *P : D->parameters())
1082 Record.AddDeclRef(P);
1083 Record.push_back(D->isVariadic());
1084 Record.push_back(D->blockMissingReturnType());
1085 Record.push_back(D->isConversionFromLambda());
1086 Record.push_back(D->capturesCXXThis());
1087 Record.push_back(D->getNumCaptures());
1088 for (const auto &capture : D->captures()) {
1089 Record.AddDeclRef(capture.getVariable());
1092 if (capture.isByRef()) flags |= 1;
1093 if (capture.isNested()) flags |= 2;
1094 if (capture.hasCopyExpr()) flags |= 4;
1095 Record.push_back(flags);
1097 if (capture.hasCopyExpr()) Record.AddStmt(capture.getCopyExpr());
1100 Code = serialization::DECL_BLOCK;
1103 void ASTDeclWriter::VisitCapturedDecl(CapturedDecl *CD) {
1104 Record.push_back(CD->getNumParams());
1106 Record.push_back(CD->getContextParamPosition());
1107 Record.push_back(CD->isNothrow() ? 1 : 0);
1108 // Body is stored by VisitCapturedStmt.
1109 for (unsigned I = 0; I < CD->getNumParams(); ++I)
1110 Record.AddDeclRef(CD->getParam(I));
1111 Code = serialization::DECL_CAPTURED;
1114 void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
1116 Record.push_back(D->getLanguage());
1117 Record.AddSourceLocation(D->getExternLoc());
1118 Record.AddSourceLocation(D->getRBraceLoc());
1119 Code = serialization::DECL_LINKAGE_SPEC;
1122 void ASTDeclWriter::VisitExportDecl(ExportDecl *D) {
1124 Record.AddSourceLocation(D->getRBraceLoc());
1125 Code = serialization::DECL_EXPORT;
1128 void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) {
1130 Record.AddSourceLocation(D->getLocStart());
1131 Code = serialization::DECL_LABEL;
1135 void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) {
1136 VisitRedeclarable(D);
1138 Record.push_back(D->isInline());
1139 Record.AddSourceLocation(D->getLocStart());
1140 Record.AddSourceLocation(D->getRBraceLoc());
1142 if (D->isOriginalNamespace())
1143 Record.AddDeclRef(D->getAnonymousNamespace());
1144 Code = serialization::DECL_NAMESPACE;
1146 if (Writer.hasChain() && D->isAnonymousNamespace() &&
1147 D == D->getMostRecentDecl()) {
1148 // This is a most recent reopening of the anonymous namespace. If its parent
1149 // is in a previous PCH (or is the TU), mark that parent for update, because
1150 // the original namespace always points to the latest re-opening of its
1151 // anonymous namespace.
1152 Decl *Parent = cast<Decl>(
1153 D->getParent()->getRedeclContext()->getPrimaryContext());
1154 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) {
1155 Writer.DeclUpdates[Parent].push_back(
1156 ASTWriter::DeclUpdate(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE, D));
1161 void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
1162 VisitRedeclarable(D);
1164 Record.AddSourceLocation(D->getNamespaceLoc());
1165 Record.AddSourceLocation(D->getTargetNameLoc());
1166 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1167 Record.AddDeclRef(D->getNamespace());
1168 Code = serialization::DECL_NAMESPACE_ALIAS;
1171 void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) {
1173 Record.AddSourceLocation(D->getUsingLoc());
1174 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1175 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName());
1176 Record.AddDeclRef(D->FirstUsingShadow.getPointer());
1177 Record.push_back(D->hasTypename());
1178 Record.AddDeclRef(Context.getInstantiatedFromUsingDecl(D));
1179 Code = serialization::DECL_USING;
1182 void ASTDeclWriter::VisitUsingPackDecl(UsingPackDecl *D) {
1183 Record.push_back(D->NumExpansions);
1185 Record.AddDeclRef(D->getInstantiatedFromUsingDecl());
1186 for (auto *E : D->expansions())
1187 Record.AddDeclRef(E);
1188 Code = serialization::DECL_USING_PACK;
1191 void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) {
1192 VisitRedeclarable(D);
1194 Record.AddDeclRef(D->getTargetDecl());
1195 Record.AddDeclRef(D->UsingOrNextShadow);
1196 Record.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D));
1197 Code = serialization::DECL_USING_SHADOW;
1200 void ASTDeclWriter::VisitConstructorUsingShadowDecl(
1201 ConstructorUsingShadowDecl *D) {
1202 VisitUsingShadowDecl(D);
1203 Record.AddDeclRef(D->NominatedBaseClassShadowDecl);
1204 Record.AddDeclRef(D->ConstructedBaseClassShadowDecl);
1205 Record.push_back(D->IsVirtual);
1206 Code = serialization::DECL_CONSTRUCTOR_USING_SHADOW;
1209 void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
1211 Record.AddSourceLocation(D->getUsingLoc());
1212 Record.AddSourceLocation(D->getNamespaceKeyLocation());
1213 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1214 Record.AddDeclRef(D->getNominatedNamespace());
1215 Record.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()));
1216 Code = serialization::DECL_USING_DIRECTIVE;
1219 void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
1221 Record.AddSourceLocation(D->getUsingLoc());
1222 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1223 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName());
1224 Record.AddSourceLocation(D->getEllipsisLoc());
1225 Code = serialization::DECL_UNRESOLVED_USING_VALUE;
1228 void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl(
1229 UnresolvedUsingTypenameDecl *D) {
1231 Record.AddSourceLocation(D->getTypenameLoc());
1232 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1233 Record.AddSourceLocation(D->getEllipsisLoc());
1234 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME;
1237 void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) {
1241 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
1243 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) {
1244 Record.push_back(CXXRecTemplate);
1245 Record.AddDeclRef(TemplD);
1246 } else if (MemberSpecializationInfo *MSInfo
1247 = D->getMemberSpecializationInfo()) {
1248 Record.push_back(CXXRecMemberSpecialization);
1249 Record.AddDeclRef(MSInfo->getInstantiatedFrom());
1250 Record.push_back(MSInfo->getTemplateSpecializationKind());
1251 Record.AddSourceLocation(MSInfo->getPointOfInstantiation());
1253 Record.push_back(CXXRecNotTemplate);
1256 Record.push_back(D->isThisDeclarationADefinition());
1257 if (D->isThisDeclarationADefinition())
1258 Record.AddCXXDefinitionData(D);
1260 // Store (what we currently believe to be) the key function to avoid
1261 // deserializing every method so we can compute it.
1262 if (D->IsCompleteDefinition)
1263 Record.AddDeclRef(Context.getCurrentKeyFunction(D));
1265 Code = serialization::DECL_CXX_RECORD;
1268 void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) {
1269 VisitFunctionDecl(D);
1270 if (D->isCanonicalDecl()) {
1271 Record.push_back(D->size_overridden_methods());
1272 for (const CXXMethodDecl *MD : D->overridden_methods())
1273 Record.AddDeclRef(MD);
1275 // We only need to record overridden methods once for the canonical decl.
1276 Record.push_back(0);
1279 if (D->getDeclContext() == D->getLexicalDeclContext() &&
1280 D->getFirstDecl() == D->getMostRecentDecl() &&
1281 !D->isInvalidDecl() &&
1283 !D->isTopLevelDeclInObjCContainer() &&
1284 D->getDeclName().getNameKind() == DeclarationName::Identifier &&
1286 !D->hasInheritedPrototype() &&
1287 D->hasWrittenPrototype())
1288 AbbrevToUse = Writer.getDeclCXXMethodAbbrev();
1290 Code = serialization::DECL_CXX_METHOD;
1293 void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
1294 if (auto Inherited = D->getInheritedConstructor()) {
1295 Record.AddDeclRef(Inherited.getShadowDecl());
1296 Record.AddDeclRef(Inherited.getConstructor());
1297 Code = serialization::DECL_CXX_INHERITED_CONSTRUCTOR;
1299 Code = serialization::DECL_CXX_CONSTRUCTOR;
1302 VisitCXXMethodDecl(D);
1304 Code = D->isInheritingConstructor()
1305 ? serialization::DECL_CXX_INHERITED_CONSTRUCTOR
1306 : serialization::DECL_CXX_CONSTRUCTOR;
1309 void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
1310 VisitCXXMethodDecl(D);
1312 Record.AddDeclRef(D->getOperatorDelete());
1313 if (D->getOperatorDelete())
1314 Record.AddStmt(D->getOperatorDeleteThisArg());
1316 Code = serialization::DECL_CXX_DESTRUCTOR;
1319 void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) {
1320 VisitCXXMethodDecl(D);
1321 Code = serialization::DECL_CXX_CONVERSION;
1324 void ASTDeclWriter::VisitImportDecl(ImportDecl *D) {
1326 Record.push_back(Writer.getSubmoduleID(D->getImportedModule()));
1327 ArrayRef<SourceLocation> IdentifierLocs = D->getIdentifierLocs();
1328 Record.push_back(!IdentifierLocs.empty());
1329 if (IdentifierLocs.empty()) {
1330 Record.AddSourceLocation(D->getLocEnd());
1331 Record.push_back(1);
1333 for (unsigned I = 0, N = IdentifierLocs.size(); I != N; ++I)
1334 Record.AddSourceLocation(IdentifierLocs[I]);
1335 Record.push_back(IdentifierLocs.size());
1337 // Note: the number of source locations must always be the last element in
1339 Code = serialization::DECL_IMPORT;
1342 void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) {
1344 Record.AddSourceLocation(D->getColonLoc());
1345 Code = serialization::DECL_ACCESS_SPEC;
1348 void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) {
1349 // Record the number of friend type template parameter lists here
1350 // so as to simplify memory allocation during deserialization.
1351 Record.push_back(D->NumTPLists);
1353 bool hasFriendDecl = D->Friend.is<NamedDecl*>();
1354 Record.push_back(hasFriendDecl);
1356 Record.AddDeclRef(D->getFriendDecl());
1358 Record.AddTypeSourceInfo(D->getFriendType());
1359 for (unsigned i = 0; i < D->NumTPLists; ++i)
1360 Record.AddTemplateParameterList(D->getFriendTypeTemplateParameterList(i));
1361 Record.AddDeclRef(D->getNextFriend());
1362 Record.push_back(D->UnsupportedFriend);
1363 Record.AddSourceLocation(D->FriendLoc);
1364 Code = serialization::DECL_FRIEND;
1367 void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
1369 Record.push_back(D->getNumTemplateParameters());
1370 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i)
1371 Record.AddTemplateParameterList(D->getTemplateParameterList(i));
1372 Record.push_back(D->getFriendDecl() != nullptr);
1373 if (D->getFriendDecl())
1374 Record.AddDeclRef(D->getFriendDecl());
1376 Record.AddTypeSourceInfo(D->getFriendType());
1377 Record.AddSourceLocation(D->getFriendLoc());
1378 Code = serialization::DECL_FRIEND_TEMPLATE;
1381 void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) {
1384 Record.AddDeclRef(D->getTemplatedDecl());
1385 Record.AddTemplateParameterList(D->getTemplateParameters());
1388 void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
1389 VisitRedeclarable(D);
1391 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that
1392 // getCommonPtr() can be used while this is still initializing.
1393 if (D->isFirstDecl()) {
1394 // This declaration owns the 'common' pointer, so serialize that data now.
1395 Record.AddDeclRef(D->getInstantiatedFromMemberTemplate());
1396 if (D->getInstantiatedFromMemberTemplate())
1397 Record.push_back(D->isMemberSpecialization());
1400 VisitTemplateDecl(D);
1401 Record.push_back(D->getIdentifierNamespace());
1404 void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
1405 VisitRedeclarableTemplateDecl(D);
1407 if (D->isFirstDecl())
1408 AddTemplateSpecializations(D);
1409 Code = serialization::DECL_CLASS_TEMPLATE;
1412 void ASTDeclWriter::VisitClassTemplateSpecializationDecl(
1413 ClassTemplateSpecializationDecl *D) {
1414 RegisterTemplateSpecialization(D->getSpecializedTemplate(), D);
1416 VisitCXXRecordDecl(D);
1418 llvm::PointerUnion<ClassTemplateDecl *,
1419 ClassTemplatePartialSpecializationDecl *> InstFrom
1420 = D->getSpecializedTemplateOrPartial();
1421 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) {
1422 Record.AddDeclRef(InstFromD);
1424 Record.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>());
1425 Record.AddTemplateArgumentList(&D->getTemplateInstantiationArgs());
1428 Record.AddTemplateArgumentList(&D->getTemplateArgs());
1429 Record.AddSourceLocation(D->getPointOfInstantiation());
1430 Record.push_back(D->getSpecializationKind());
1431 Record.push_back(D->isCanonicalDecl());
1433 if (D->isCanonicalDecl()) {
1434 // When reading, we'll add it to the folding set of the following template.
1435 Record.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl());
1439 Record.AddTypeSourceInfo(D->getTypeAsWritten());
1440 if (D->getTypeAsWritten()) {
1441 Record.AddSourceLocation(D->getExternLoc());
1442 Record.AddSourceLocation(D->getTemplateKeywordLoc());
1445 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION;
1448 void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl(
1449 ClassTemplatePartialSpecializationDecl *D) {
1450 VisitClassTemplateSpecializationDecl(D);
1452 Record.AddTemplateParameterList(D->getTemplateParameters());
1453 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten());
1455 // These are read/set from/to the first declaration.
1456 if (D->getPreviousDecl() == nullptr) {
1457 Record.AddDeclRef(D->getInstantiatedFromMember());
1458 Record.push_back(D->isMemberSpecialization());
1461 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION;
1464 void ASTDeclWriter::VisitVarTemplateDecl(VarTemplateDecl *D) {
1465 VisitRedeclarableTemplateDecl(D);
1467 if (D->isFirstDecl())
1468 AddTemplateSpecializations(D);
1469 Code = serialization::DECL_VAR_TEMPLATE;
1472 void ASTDeclWriter::VisitVarTemplateSpecializationDecl(
1473 VarTemplateSpecializationDecl *D) {
1474 RegisterTemplateSpecialization(D->getSpecializedTemplate(), D);
1478 llvm::PointerUnion<VarTemplateDecl *, VarTemplatePartialSpecializationDecl *>
1479 InstFrom = D->getSpecializedTemplateOrPartial();
1480 if (Decl *InstFromD = InstFrom.dyn_cast<VarTemplateDecl *>()) {
1481 Record.AddDeclRef(InstFromD);
1483 Record.AddDeclRef(InstFrom.get<VarTemplatePartialSpecializationDecl *>());
1484 Record.AddTemplateArgumentList(&D->getTemplateInstantiationArgs());
1488 Record.AddTypeSourceInfo(D->getTypeAsWritten());
1489 if (D->getTypeAsWritten()) {
1490 Record.AddSourceLocation(D->getExternLoc());
1491 Record.AddSourceLocation(D->getTemplateKeywordLoc());
1494 Record.AddTemplateArgumentList(&D->getTemplateArgs());
1495 Record.AddSourceLocation(D->getPointOfInstantiation());
1496 Record.push_back(D->getSpecializationKind());
1497 Record.push_back(D->IsCompleteDefinition);
1498 Record.push_back(D->isCanonicalDecl());
1500 if (D->isCanonicalDecl()) {
1501 // When reading, we'll add it to the folding set of the following template.
1502 Record.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl());
1505 Code = serialization::DECL_VAR_TEMPLATE_SPECIALIZATION;
1508 void ASTDeclWriter::VisitVarTemplatePartialSpecializationDecl(
1509 VarTemplatePartialSpecializationDecl *D) {
1510 VisitVarTemplateSpecializationDecl(D);
1512 Record.AddTemplateParameterList(D->getTemplateParameters());
1513 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten());
1515 // These are read/set from/to the first declaration.
1516 if (D->getPreviousDecl() == nullptr) {
1517 Record.AddDeclRef(D->getInstantiatedFromMember());
1518 Record.push_back(D->isMemberSpecialization());
1521 Code = serialization::DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION;
1524 void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl(
1525 ClassScopeFunctionSpecializationDecl *D) {
1527 Record.AddDeclRef(D->getSpecialization());
1528 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION;
1532 void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
1533 VisitRedeclarableTemplateDecl(D);
1535 if (D->isFirstDecl())
1536 AddTemplateSpecializations(D);
1537 Code = serialization::DECL_FUNCTION_TEMPLATE;
1540 void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
1543 Record.push_back(D->wasDeclaredWithTypename());
1545 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1546 !D->defaultArgumentWasInherited();
1547 Record.push_back(OwnsDefaultArg);
1549 Record.AddTypeSourceInfo(D->getDefaultArgumentInfo());
1551 Code = serialization::DECL_TEMPLATE_TYPE_PARM;
1554 void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
1555 // For an expanded parameter pack, record the number of expansion types here
1556 // so that it's easier for deserialization to allocate the right amount of
1558 if (D->isExpandedParameterPack())
1559 Record.push_back(D->getNumExpansionTypes());
1561 VisitDeclaratorDecl(D);
1562 // TemplateParmPosition.
1563 Record.push_back(D->getDepth());
1564 Record.push_back(D->getPosition());
1566 if (D->isExpandedParameterPack()) {
1567 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) {
1568 Record.AddTypeRef(D->getExpansionType(I));
1569 Record.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I));
1572 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK;
1574 // Rest of NonTypeTemplateParmDecl.
1575 Record.push_back(D->isParameterPack());
1576 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1577 !D->defaultArgumentWasInherited();
1578 Record.push_back(OwnsDefaultArg);
1580 Record.AddStmt(D->getDefaultArgument());
1581 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM;
1585 void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
1586 // For an expanded parameter pack, record the number of expansion types here
1587 // so that it's easier for deserialization to allocate the right amount of
1589 if (D->isExpandedParameterPack())
1590 Record.push_back(D->getNumExpansionTemplateParameters());
1592 VisitTemplateDecl(D);
1593 // TemplateParmPosition.
1594 Record.push_back(D->getDepth());
1595 Record.push_back(D->getPosition());
1597 if (D->isExpandedParameterPack()) {
1598 for (unsigned I = 0, N = D->getNumExpansionTemplateParameters();
1600 Record.AddTemplateParameterList(D->getExpansionTemplateParameters(I));
1601 Code = serialization::DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK;
1603 // Rest of TemplateTemplateParmDecl.
1604 Record.push_back(D->isParameterPack());
1605 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1606 !D->defaultArgumentWasInherited();
1607 Record.push_back(OwnsDefaultArg);
1609 Record.AddTemplateArgumentLoc(D->getDefaultArgument());
1610 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM;
1614 void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) {
1615 VisitRedeclarableTemplateDecl(D);
1616 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE;
1619 void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) {
1621 Record.AddStmt(D->getAssertExpr());
1622 Record.push_back(D->isFailed());
1623 Record.AddStmt(D->getMessage());
1624 Record.AddSourceLocation(D->getRParenLoc());
1625 Code = serialization::DECL_STATIC_ASSERT;
1628 /// \brief Emit the DeclContext part of a declaration context decl.
1629 void ASTDeclWriter::VisitDeclContext(DeclContext *DC) {
1630 Record.AddOffset(Writer.WriteDeclContextLexicalBlock(Context, DC));
1631 Record.AddOffset(Writer.WriteDeclContextVisibleBlock(Context, DC));
1634 const Decl *ASTWriter::getFirstLocalDecl(const Decl *D) {
1635 assert(IsLocalDecl(D) && "expected a local declaration");
1637 const Decl *Canon = D->getCanonicalDecl();
1638 if (IsLocalDecl(Canon))
1641 const Decl *&CacheEntry = FirstLocalDeclCache[Canon];
1645 for (const Decl *Redecl = D; Redecl; Redecl = Redecl->getPreviousDecl())
1646 if (IsLocalDecl(Redecl))
1648 return CacheEntry = D;
1651 template <typename T>
1652 void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) {
1653 T *First = D->getFirstDecl();
1654 T *MostRecent = First->getMostRecentDecl();
1655 T *DAsT = static_cast<T *>(D);
1656 if (MostRecent != First) {
1657 assert(isRedeclarableDeclKind(DAsT->getKind()) &&
1658 "Not considered redeclarable?");
1660 Record.AddDeclRef(First);
1662 // Write out a list of local redeclarations of this declaration if it's the
1663 // first local declaration in the chain.
1664 const Decl *FirstLocal = Writer.getFirstLocalDecl(DAsT);
1665 if (DAsT == FirstLocal) {
1666 // Emit a list of all imported first declarations so that we can be sure
1667 // that all redeclarations visible to this module are before D in the
1669 unsigned I = Record.size();
1670 Record.push_back(0);
1672 AddFirstDeclFromEachModule(DAsT, /*IncludeLocal*/false);
1673 // This is the number of imported first declarations + 1.
1674 Record[I] = Record.size() - I;
1676 // Collect the set of local redeclarations of this declaration, from
1677 // newest to oldest.
1678 ASTWriter::RecordData LocalRedecls;
1679 ASTRecordWriter LocalRedeclWriter(Record, LocalRedecls);
1680 for (const Decl *Prev = FirstLocal->getMostRecentDecl();
1681 Prev != FirstLocal; Prev = Prev->getPreviousDecl())
1682 if (!Prev->isFromASTFile())
1683 LocalRedeclWriter.AddDeclRef(Prev);
1685 // If we have any redecls, write them now as a separate record preceding
1686 // the declaration itself.
1687 if (LocalRedecls.empty())
1688 Record.push_back(0);
1690 Record.AddOffset(LocalRedeclWriter.Emit(LOCAL_REDECLARATIONS));
1692 Record.push_back(0);
1693 Record.AddDeclRef(FirstLocal);
1696 // Make sure that we serialize both the previous and the most-recent
1697 // declarations, which (transitively) ensures that all declarations in the
1698 // chain get serialized.
1700 // FIXME: This is not correct; when we reach an imported declaration we
1701 // won't emit its previous declaration.
1702 (void)Writer.GetDeclRef(D->getPreviousDecl());
1703 (void)Writer.GetDeclRef(MostRecent);
1705 // We use the sentinel value 0 to indicate an only declaration.
1706 Record.push_back(0);
1710 void ASTDeclWriter::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
1711 Record.push_back(D->varlist_size());
1713 for (auto *I : D->varlists())
1715 Code = serialization::DECL_OMP_THREADPRIVATE;
1718 void ASTDeclWriter::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) {
1720 Record.AddSourceLocation(D->getLocStart());
1721 Record.AddStmt(D->getCombiner());
1722 Record.AddStmt(D->getInitializer());
1723 Record.push_back(D->getInitializerKind());
1724 Record.AddDeclRef(D->getPrevDeclInScope());
1725 Code = serialization::DECL_OMP_DECLARE_REDUCTION;
1728 void ASTDeclWriter::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) {
1730 Code = serialization::DECL_OMP_CAPTUREDEXPR;
1733 //===----------------------------------------------------------------------===//
1734 // ASTWriter Implementation
1735 //===----------------------------------------------------------------------===//
1737 void ASTWriter::WriteDeclAbbrevs() {
1738 using namespace llvm;
1740 std::shared_ptr<BitCodeAbbrev> Abv;
1742 // Abbreviation for DECL_FIELD
1743 Abv = std::make_shared<BitCodeAbbrev>();
1744 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD));
1746 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1747 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1748 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1749 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1750 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1751 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1752 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1753 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1754 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1755 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1756 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1758 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1759 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1760 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1762 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1764 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1765 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1767 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1768 Abv->Add(BitCodeAbbrevOp(0)); // InitStyle
1770 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1771 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1772 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1773 DeclFieldAbbrev = Stream.EmitAbbrev(std::move(Abv));
1775 // Abbreviation for DECL_OBJC_IVAR
1776 Abv = std::make_shared<BitCodeAbbrev>();
1777 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR));
1779 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1780 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1781 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1782 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1783 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1784 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1785 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1786 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1787 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1788 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1789 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1791 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1792 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1793 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1795 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1797 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1798 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1800 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1801 Abv->Add(BitCodeAbbrevOp(0)); // InitStyle
1803 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl
1804 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize
1806 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1807 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1808 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1809 DeclObjCIvarAbbrev = Stream.EmitAbbrev(std::move(Abv));
1811 // Abbreviation for DECL_ENUM
1812 Abv = std::make_shared<BitCodeAbbrev>();
1813 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM));
1815 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1817 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1818 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1819 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1820 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1821 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1822 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1823 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1824 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1825 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1826 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1827 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1829 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1830 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1831 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1833 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1834 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1836 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1837 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1838 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
1839 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1840 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
1841 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired
1842 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1843 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1844 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind
1846 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef
1847 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType
1848 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType
1849 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits
1850 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits
1851 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped
1852 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag
1853 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed
1854 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum
1856 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1857 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1858 DeclEnumAbbrev = Stream.EmitAbbrev(std::move(Abv));
1860 // Abbreviation for DECL_RECORD
1861 Abv = std::make_shared<BitCodeAbbrev>();
1862 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD));
1864 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1866 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1867 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1868 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1869 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1870 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1871 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1872 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1873 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1874 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1875 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1876 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1878 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1879 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1880 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1882 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1883 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1885 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1886 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1887 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
1888 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1889 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
1890 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired
1891 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1892 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1893 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind
1895 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember
1896 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion
1897 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember
1898 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasVolatileMember
1900 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1901 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1902 DeclRecordAbbrev = Stream.EmitAbbrev(std::move(Abv));
1904 // Abbreviation for DECL_PARM_VAR
1905 Abv = std::make_shared<BitCodeAbbrev>();
1906 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR));
1908 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1910 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1911 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1912 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1913 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1914 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1915 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1916 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1917 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1918 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1919 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1920 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1922 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1923 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1924 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1926 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1928 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1929 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1931 Abv->Add(BitCodeAbbrevOp(0)); // SClass
1932 Abv->Add(BitCodeAbbrevOp(0)); // TSCSpec
1933 Abv->Add(BitCodeAbbrevOp(0)); // InitStyle
1934 Abv->Add(BitCodeAbbrevOp(0)); // Linkage
1935 Abv->Add(BitCodeAbbrevOp(0)); // HasInit
1936 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo
1938 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter
1939 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth
1940 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex
1941 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier
1942 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted
1943 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg
1944 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg
1946 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1947 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1948 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1949 DeclParmVarAbbrev = Stream.EmitAbbrev(std::move(Abv));
1951 // Abbreviation for DECL_TYPEDEF
1952 Abv = std::make_shared<BitCodeAbbrev>();
1953 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF));
1955 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1957 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1958 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1959 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1960 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1961 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1962 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isUsed
1963 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isReferenced
1964 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1965 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // C++ AccessSpecifier
1966 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1967 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1969 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1970 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1971 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1973 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1974 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1976 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1977 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1978 DeclTypedefAbbrev = Stream.EmitAbbrev(std::move(Abv));
1980 // Abbreviation for DECL_VAR
1981 Abv = std::make_shared<BitCodeAbbrev>();
1982 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR));
1984 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1986 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1987 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1988 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1989 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1990 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1991 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1992 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1993 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1994 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1995 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1996 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1998 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1999 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
2000 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
2002 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2004 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
2005 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
2007 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // SClass
2008 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // TSCSpec
2009 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // InitStyle
2010 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsThisDeclarationADemotedDefinition
2011 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable
2012 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable
2013 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl
2014 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong
2015 Abv->Add(BitCodeAbbrevOp(0)); // isInline
2016 Abv->Add(BitCodeAbbrevOp(0)); // isInlineSpecified
2017 Abv->Add(BitCodeAbbrevOp(0)); // isConstexpr
2018 Abv->Add(BitCodeAbbrevOp(0)); // isInitCapture
2019 Abv->Add(BitCodeAbbrevOp(0)); // isPrevDeclInSameScope
2020 Abv->Add(BitCodeAbbrevOp(0)); // ImplicitParamKind
2021 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage
2022 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // IsInitICE (local)
2023 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // VarKind (local enum)
2025 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
2026 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
2027 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
2028 DeclVarAbbrev = Stream.EmitAbbrev(std::move(Abv));
2030 // Abbreviation for DECL_CXX_METHOD
2031 Abv = std::make_shared<BitCodeAbbrev>();
2032 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CXX_METHOD));
2034 Abv->Add(BitCodeAbbrevOp(0)); // CanonicalDecl
2036 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
2037 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
2038 Abv->Add(BitCodeAbbrevOp(0)); // Invalid
2039 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
2040 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Implicit
2041 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Used
2042 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Referenced
2043 Abv->Add(BitCodeAbbrevOp(0)); // InObjCContainer
2044 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Access
2045 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ModulePrivate
2046 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
2048 Abv->Add(BitCodeAbbrevOp(DeclarationName::Identifier)); // NameKind
2049 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Identifier
2050 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
2052 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2054 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerLocStart
2055 Abv->Add(BitCodeAbbrevOp(0)); // HasExtInfo
2057 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 11)); // IDNS
2058 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // StorageClass
2059 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Inline
2060 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InlineSpecified
2061 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ExplicitSpecified
2062 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // VirtualAsWritten
2063 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Pure
2064 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedProto
2065 Abv->Add(BitCodeAbbrevOp(1)); // HasWrittenProto
2066 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Deleted
2067 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Trivial
2068 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Defaulted
2069 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ExplicitlyDefaulted
2070 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ImplicitReturnZero
2071 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constexpr
2072 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // UsesSEHTry
2073 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // SkippedBody
2074 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // LateParsed
2075 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage
2076 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LocEnd
2077 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // ODRHash
2078 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // TemplateKind
2079 // This Array slurps the rest of the record. Fortunately we want to encode
2080 // (nearly) all the remaining (variable number of) fields in the same way.
2082 // This is the function template information if any, then
2083 // NumParams and Params[] from FunctionDecl, and
2084 // NumOverriddenMethods, OverriddenMethods[] from CXXMethodDecl.
2086 // Add an AbbrevOp for 'size then elements' and use it here.
2087 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
2088 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
2089 DeclCXXMethodAbbrev = Stream.EmitAbbrev(std::move(Abv));
2091 // Abbreviation for EXPR_DECL_REF
2092 Abv = std::make_shared<BitCodeAbbrev>();
2093 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF));
2096 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2097 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2098 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2099 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2100 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2101 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2102 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2104 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier
2105 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound
2106 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs
2107 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates
2108 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed,
2109 1)); // RefersToEnclosingVariableOrCapture
2110 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef
2111 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
2112 DeclRefExprAbbrev = Stream.EmitAbbrev(std::move(Abv));
2114 // Abbreviation for EXPR_INTEGER_LITERAL
2115 Abv = std::make_shared<BitCodeAbbrev>();
2116 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL));
2119 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2120 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2121 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2122 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2123 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2124 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2125 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2127 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
2128 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width
2129 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value
2130 IntegerLiteralAbbrev = Stream.EmitAbbrev(std::move(Abv));
2132 // Abbreviation for EXPR_CHARACTER_LITERAL
2133 Abv = std::make_shared<BitCodeAbbrev>();
2134 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL));
2137 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2138 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2139 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2140 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2141 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2142 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2143 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2145 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue
2146 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
2147 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // getKind
2148 CharacterLiteralAbbrev = Stream.EmitAbbrev(std::move(Abv));
2150 // Abbreviation for EXPR_IMPLICIT_CAST
2151 Abv = std::make_shared<BitCodeAbbrev>();
2152 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_IMPLICIT_CAST));
2155 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2156 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2157 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2158 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2159 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2160 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2161 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2163 Abv->Add(BitCodeAbbrevOp(0)); // PathSize
2164 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 6)); // CastKind
2166 ExprImplicitCastAbbrev = Stream.EmitAbbrev(std::move(Abv));
2168 Abv = std::make_shared<BitCodeAbbrev>();
2169 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL));
2170 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2171 DeclContextLexicalAbbrev = Stream.EmitAbbrev(std::move(Abv));
2173 Abv = std::make_shared<BitCodeAbbrev>();
2174 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE));
2175 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2176 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(std::move(Abv));
2179 /// isRequiredDecl - Check if this is a "required" Decl, which must be seen by
2180 /// consumers of the AST.
2182 /// Such decls will always be deserialized from the AST file, so we would like
2183 /// this to be as restrictive as possible. Currently the predicate is driven by
2184 /// code generation requirements, if other clients have a different notion of
2185 /// what is "required" then we may have to consider an alternate scheme where
2186 /// clients can iterate over the top-level decls and get information on them,
2187 /// without necessary deserializing them. We could explicitly require such
2188 /// clients to use a separate API call to "realize" the decl. This should be
2189 /// relatively painless since they would presumably only do it for top-level
2191 static bool isRequiredDecl(const Decl *D, ASTContext &Context,
2192 bool WritingModule) {
2193 // An ObjCMethodDecl is never considered as "required" because its
2194 // implementation container always is.
2196 // File scoped assembly or obj-c or OMP declare target implementation must be
2198 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D) ||
2199 D->hasAttr<OMPDeclareTargetDeclAttr>())
2202 if (WritingModule && (isa<VarDecl>(D) || isa<ImportDecl>(D))) {
2203 // These declarations are part of the module initializer, and are emitted
2204 // if and when the module is imported, rather than being emitted eagerly.
2208 return Context.DeclMustBeEmitted(D);
2211 void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) {
2212 // Determine the ID for this declaration.
2213 serialization::DeclID ID;
2214 assert(!D->isFromASTFile() && "should not be emitting imported decl");
2215 serialization::DeclID &IDR = DeclIDs[D];
2221 assert(ID >= FirstDeclID && "invalid decl ID");
2224 ASTDeclWriter W(*this, Context, Record);
2226 // Build a record for this declaration
2229 // Emit this declaration to the bitstream.
2230 uint64_t Offset = W.Emit(D);
2232 // Record the offset for this declaration
2233 SourceLocation Loc = D->getLocation();
2234 unsigned Index = ID - FirstDeclID;
2235 if (DeclOffsets.size() == Index)
2236 DeclOffsets.push_back(DeclOffset(Loc, Offset));
2237 else if (DeclOffsets.size() < Index) {
2238 // FIXME: Can/should this happen?
2239 DeclOffsets.resize(Index+1);
2240 DeclOffsets[Index].setLocation(Loc);
2241 DeclOffsets[Index].BitOffset = Offset;
2243 llvm_unreachable("declarations should be emitted in ID order");
2246 SourceManager &SM = Context.getSourceManager();
2247 if (Loc.isValid() && SM.isLocalSourceLocation(Loc))
2248 associateDeclWithFile(D, ID);
2250 // Note declarations that should be deserialized eagerly so that we can add
2251 // them to a record in the AST file later.
2252 if (isRequiredDecl(D, Context, WritingModule))
2253 EagerlyDeserializedDecls.push_back(ID);
2256 void ASTRecordWriter::AddFunctionDefinition(const FunctionDecl *FD) {
2257 // Switch case IDs are per function body.
2258 Writer->ClearSwitchCaseIDs();
2260 assert(FD->doesThisDeclarationHaveABody());
2261 bool ModulesCodegen = false;
2262 if (Writer->WritingModule && !FD->isDependentContext()) {
2263 Optional<GVALinkage> Linkage;
2264 if (Writer->WritingModule->Kind == Module::ModuleInterfaceUnit) {
2265 // When building a C++ Modules TS module interface unit, a strong
2266 // definition in the module interface is provided by the compilation of
2267 // that module interface unit, not by its users. (Inline functions are
2268 // still emitted in module users.)
2269 Linkage = Writer->Context->GetGVALinkageForFunction(FD);
2270 ModulesCodegen = *Linkage == GVA_StrongExternal;
2272 if (Writer->Context->getLangOpts().ModulesCodegen) {
2273 // Under -fmodules-codegen, codegen is performed for all non-internal,
2274 // non-always_inline functions.
2275 if (!FD->hasAttr<AlwaysInlineAttr>()) {
2277 Linkage = Writer->Context->GetGVALinkageForFunction(FD);
2278 ModulesCodegen = *Linkage != GVA_Internal;
2282 Record->push_back(ModulesCodegen);
2284 Writer->ModularCodegenDecls.push_back(Writer->GetDeclRef(FD));
2285 if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) {
2286 Record->push_back(CD->getNumCtorInitializers());
2287 if (CD->getNumCtorInitializers())
2288 AddCXXCtorInitializers(
2289 llvm::makeArrayRef(CD->init_begin(), CD->init_end()));
2291 AddStmt(FD->getBody());