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->getTemplatedKind());
542 switch (D->getTemplatedKind()) {
543 case FunctionDecl::TK_NonTemplate:
545 case FunctionDecl::TK_FunctionTemplate:
546 Record.AddDeclRef(D->getDescribedFunctionTemplate());
548 case FunctionDecl::TK_MemberSpecialization: {
549 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo();
550 Record.AddDeclRef(MemberInfo->getInstantiatedFrom());
551 Record.push_back(MemberInfo->getTemplateSpecializationKind());
552 Record.AddSourceLocation(MemberInfo->getPointOfInstantiation());
555 case FunctionDecl::TK_FunctionTemplateSpecialization: {
556 FunctionTemplateSpecializationInfo *
557 FTSInfo = D->getTemplateSpecializationInfo();
559 RegisterTemplateSpecialization(FTSInfo->getTemplate(), D);
561 Record.AddDeclRef(FTSInfo->getTemplate());
562 Record.push_back(FTSInfo->getTemplateSpecializationKind());
564 // Template arguments.
565 Record.AddTemplateArgumentList(FTSInfo->TemplateArguments);
567 // Template args as written.
568 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != nullptr);
569 if (FTSInfo->TemplateArgumentsAsWritten) {
570 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs);
571 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs;
573 Record.AddTemplateArgumentLoc(
574 (*FTSInfo->TemplateArgumentsAsWritten)[i]);
575 Record.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc);
576 Record.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc);
579 Record.AddSourceLocation(FTSInfo->getPointOfInstantiation());
581 if (D->isCanonicalDecl()) {
582 // Write the template that contains the specializations set. We will
583 // add a FunctionTemplateSpecializationInfo to it when reading.
584 Record.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl());
588 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
589 DependentFunctionTemplateSpecializationInfo *
590 DFTSInfo = D->getDependentSpecializationInfo();
593 Record.push_back(DFTSInfo->getNumTemplates());
594 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i)
595 Record.AddDeclRef(DFTSInfo->getTemplate(i));
598 Record.push_back(DFTSInfo->getNumTemplateArgs());
599 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i)
600 Record.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i));
601 Record.AddSourceLocation(DFTSInfo->getLAngleLoc());
602 Record.AddSourceLocation(DFTSInfo->getRAngleLoc());
607 Record.push_back(D->param_size());
608 for (auto P : D->parameters())
609 Record.AddDeclRef(P);
610 Code = serialization::DECL_FUNCTION;
613 void ASTDeclWriter::VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D) {
614 VisitFunctionDecl(D);
615 Code = serialization::DECL_CXX_DEDUCTION_GUIDE;
618 void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
620 // FIXME: convert to LazyStmtPtr?
621 // Unlike C/C++, method bodies will never be in header files.
622 bool HasBodyStuff = D->getBody() != nullptr ||
623 D->getSelfDecl() != nullptr || D->getCmdDecl() != nullptr;
624 Record.push_back(HasBodyStuff);
626 Record.AddStmt(D->getBody());
627 Record.AddDeclRef(D->getSelfDecl());
628 Record.AddDeclRef(D->getCmdDecl());
630 Record.push_back(D->isInstanceMethod());
631 Record.push_back(D->isVariadic());
632 Record.push_back(D->isPropertyAccessor());
633 Record.push_back(D->isDefined());
634 Record.push_back(D->IsOverriding);
635 Record.push_back(D->HasSkippedBody);
637 Record.push_back(D->IsRedeclaration);
638 Record.push_back(D->HasRedeclaration);
639 if (D->HasRedeclaration) {
640 assert(Context.getObjCMethodRedeclaration(D));
641 Record.AddDeclRef(Context.getObjCMethodRedeclaration(D));
644 // FIXME: stable encoding for @required/@optional
645 Record.push_back(D->getImplementationControl());
646 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway/nullability
647 Record.push_back(D->getObjCDeclQualifier());
648 Record.push_back(D->hasRelatedResultType());
649 Record.AddTypeRef(D->getReturnType());
650 Record.AddTypeSourceInfo(D->getReturnTypeSourceInfo());
651 Record.AddSourceLocation(D->getLocEnd());
652 Record.push_back(D->param_size());
653 for (const auto *P : D->parameters())
654 Record.AddDeclRef(P);
656 Record.push_back(D->SelLocsKind);
657 unsigned NumStoredSelLocs = D->getNumStoredSelLocs();
658 SourceLocation *SelLocs = D->getStoredSelLocs();
659 Record.push_back(NumStoredSelLocs);
660 for (unsigned i = 0; i != NumStoredSelLocs; ++i)
661 Record.AddSourceLocation(SelLocs[i]);
663 Code = serialization::DECL_OBJC_METHOD;
666 void ASTDeclWriter::VisitObjCTypeParamDecl(ObjCTypeParamDecl *D) {
667 VisitTypedefNameDecl(D);
668 Record.push_back(D->Variance);
669 Record.push_back(D->Index);
670 Record.AddSourceLocation(D->VarianceLoc);
671 Record.AddSourceLocation(D->ColonLoc);
673 Code = serialization::DECL_OBJC_TYPE_PARAM;
676 void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) {
678 Record.AddSourceLocation(D->getAtStartLoc());
679 Record.AddSourceRange(D->getAtEndRange());
680 // Abstract class (no need to define a stable serialization::DECL code).
683 void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
684 VisitRedeclarable(D);
685 VisitObjCContainerDecl(D);
686 Record.AddTypeRef(QualType(D->getTypeForDecl(), 0));
687 AddObjCTypeParamList(D->TypeParamList);
689 Record.push_back(D->isThisDeclarationADefinition());
690 if (D->isThisDeclarationADefinition()) {
691 // Write the DefinitionData
692 ObjCInterfaceDecl::DefinitionData &Data = D->data();
694 Record.AddTypeSourceInfo(D->getSuperClassTInfo());
695 Record.AddSourceLocation(D->getEndOfDefinitionLoc());
696 Record.push_back(Data.HasDesignatedInitializers);
698 // Write out the protocols that are directly referenced by the @interface.
699 Record.push_back(Data.ReferencedProtocols.size());
700 for (const auto *P : D->protocols())
701 Record.AddDeclRef(P);
702 for (const auto &PL : D->protocol_locs())
703 Record.AddSourceLocation(PL);
705 // Write out the protocols that are transitively referenced.
706 Record.push_back(Data.AllReferencedProtocols.size());
707 for (ObjCList<ObjCProtocolDecl>::iterator
708 P = Data.AllReferencedProtocols.begin(),
709 PEnd = Data.AllReferencedProtocols.end();
711 Record.AddDeclRef(*P);
714 if (ObjCCategoryDecl *Cat = D->getCategoryListRaw()) {
715 // Ensure that we write out the set of categories for this class.
716 Writer.ObjCClassesWithCategories.insert(D);
718 // Make sure that the categories get serialized.
719 for (; Cat; Cat = Cat->getNextClassCategoryRaw())
720 (void)Writer.GetDeclRef(Cat);
724 Code = serialization::DECL_OBJC_INTERFACE;
727 void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
729 // FIXME: stable encoding for @public/@private/@protected/@package
730 Record.push_back(D->getAccessControl());
731 Record.push_back(D->getSynthesize());
733 if (D->getDeclContext() == D->getLexicalDeclContext() &&
737 !D->isInvalidDecl() &&
738 !D->isReferenced() &&
739 !D->isModulePrivate() &&
743 AbbrevToUse = Writer.getDeclObjCIvarAbbrev();
745 Code = serialization::DECL_OBJC_IVAR;
748 void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
749 VisitRedeclarable(D);
750 VisitObjCContainerDecl(D);
752 Record.push_back(D->isThisDeclarationADefinition());
753 if (D->isThisDeclarationADefinition()) {
754 Record.push_back(D->protocol_size());
755 for (const auto *I : D->protocols())
756 Record.AddDeclRef(I);
757 for (const auto &PL : D->protocol_locs())
758 Record.AddSourceLocation(PL);
761 Code = serialization::DECL_OBJC_PROTOCOL;
764 void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) {
766 Code = serialization::DECL_OBJC_AT_DEFS_FIELD;
769 void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
770 VisitObjCContainerDecl(D);
771 Record.AddSourceLocation(D->getCategoryNameLoc());
772 Record.AddSourceLocation(D->getIvarLBraceLoc());
773 Record.AddSourceLocation(D->getIvarRBraceLoc());
774 Record.AddDeclRef(D->getClassInterface());
775 AddObjCTypeParamList(D->TypeParamList);
776 Record.push_back(D->protocol_size());
777 for (const auto *I : D->protocols())
778 Record.AddDeclRef(I);
779 for (const auto &PL : D->protocol_locs())
780 Record.AddSourceLocation(PL);
781 Code = serialization::DECL_OBJC_CATEGORY;
784 void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) {
786 Record.AddDeclRef(D->getClassInterface());
787 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS;
790 void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
792 Record.AddSourceLocation(D->getAtLoc());
793 Record.AddSourceLocation(D->getLParenLoc());
794 Record.AddTypeRef(D->getType());
795 Record.AddTypeSourceInfo(D->getTypeSourceInfo());
796 // FIXME: stable encoding
797 Record.push_back((unsigned)D->getPropertyAttributes());
798 Record.push_back((unsigned)D->getPropertyAttributesAsWritten());
799 // FIXME: stable encoding
800 Record.push_back((unsigned)D->getPropertyImplementation());
801 Record.AddDeclarationName(D->getGetterName());
802 Record.AddSourceLocation(D->getGetterNameLoc());
803 Record.AddDeclarationName(D->getSetterName());
804 Record.AddSourceLocation(D->getSetterNameLoc());
805 Record.AddDeclRef(D->getGetterMethodDecl());
806 Record.AddDeclRef(D->getSetterMethodDecl());
807 Record.AddDeclRef(D->getPropertyIvarDecl());
808 Code = serialization::DECL_OBJC_PROPERTY;
811 void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) {
812 VisitObjCContainerDecl(D);
813 Record.AddDeclRef(D->getClassInterface());
814 // Abstract class (no need to define a stable serialization::DECL code).
817 void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
818 VisitObjCImplDecl(D);
819 Record.AddSourceLocation(D->getCategoryNameLoc());
820 Code = serialization::DECL_OBJC_CATEGORY_IMPL;
823 void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
824 VisitObjCImplDecl(D);
825 Record.AddDeclRef(D->getSuperClass());
826 Record.AddSourceLocation(D->getSuperClassLoc());
827 Record.AddSourceLocation(D->getIvarLBraceLoc());
828 Record.AddSourceLocation(D->getIvarRBraceLoc());
829 Record.push_back(D->hasNonZeroConstructors());
830 Record.push_back(D->hasDestructors());
831 Record.push_back(D->NumIvarInitializers);
832 if (D->NumIvarInitializers)
833 Record.AddCXXCtorInitializers(
834 llvm::makeArrayRef(D->init_begin(), D->init_end()));
835 Code = serialization::DECL_OBJC_IMPLEMENTATION;
838 void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
840 Record.AddSourceLocation(D->getLocStart());
841 Record.AddDeclRef(D->getPropertyDecl());
842 Record.AddDeclRef(D->getPropertyIvarDecl());
843 Record.AddSourceLocation(D->getPropertyIvarDeclLoc());
844 Record.AddStmt(D->getGetterCXXConstructor());
845 Record.AddStmt(D->getSetterCXXAssignment());
846 Code = serialization::DECL_OBJC_PROPERTY_IMPL;
849 void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) {
850 VisitDeclaratorDecl(D);
851 Record.push_back(D->isMutable());
852 if (D->InitStorage.getInt() == FieldDecl::ISK_BitWidthOrNothing &&
853 D->InitStorage.getPointer() == nullptr) {
855 } else if (D->InitStorage.getInt() == FieldDecl::ISK_CapturedVLAType) {
856 Record.push_back(D->InitStorage.getInt() + 1);
858 QualType(static_cast<Type *>(D->InitStorage.getPointer()), 0));
860 Record.push_back(D->InitStorage.getInt() + 1);
861 Record.AddStmt(static_cast<Expr *>(D->InitStorage.getPointer()));
863 if (!D->getDeclName())
864 Record.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D));
866 if (D->getDeclContext() == D->getLexicalDeclContext() &&
870 !D->isInvalidDecl() &&
871 !D->isReferenced() &&
872 !D->isTopLevelDeclInObjCContainer() &&
873 !D->isModulePrivate() &&
875 !D->hasInClassInitializer() &&
877 !ObjCIvarDecl::classofKind(D->getKind()) &&
878 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) &&
880 AbbrevToUse = Writer.getDeclFieldAbbrev();
882 Code = serialization::DECL_FIELD;
885 void ASTDeclWriter::VisitMSPropertyDecl(MSPropertyDecl *D) {
886 VisitDeclaratorDecl(D);
887 Record.AddIdentifierRef(D->getGetterId());
888 Record.AddIdentifierRef(D->getSetterId());
889 Code = serialization::DECL_MS_PROPERTY;
892 void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) {
894 Record.push_back(D->getChainingSize());
896 for (const auto *P : D->chain())
897 Record.AddDeclRef(P);
898 Code = serialization::DECL_INDIRECTFIELD;
901 void ASTDeclWriter::VisitVarDecl(VarDecl *D) {
902 VisitRedeclarable(D);
903 VisitDeclaratorDecl(D);
904 Record.push_back(D->getStorageClass());
905 Record.push_back(D->getTSCSpec());
906 Record.push_back(D->getInitStyle());
907 if (!isa<ParmVarDecl>(D)) {
908 Record.push_back(D->isThisDeclarationADemotedDefinition());
909 Record.push_back(D->isExceptionVariable());
910 Record.push_back(D->isNRVOVariable());
911 Record.push_back(D->isCXXForRangeDecl());
912 Record.push_back(D->isARCPseudoStrong());
913 Record.push_back(D->isInline());
914 Record.push_back(D->isInlineSpecified());
915 Record.push_back(D->isConstexpr());
916 Record.push_back(D->isInitCapture());
917 Record.push_back(D->isPreviousDeclInSameBlockScope());
918 if (const auto *IPD = dyn_cast<ImplicitParamDecl>(D))
919 Record.push_back(static_cast<unsigned>(IPD->getParameterKind()));
923 Record.push_back(D->getLinkageInternal());
926 Record.push_back(!D->isInitKnownICE() ? 1 : (D->isInitICE() ? 3 : 2));
927 Record.AddStmt(D->getInit());
933 VarNotTemplate = 0, VarTemplate, StaticDataMemberSpecialization
935 if (VarTemplateDecl *TemplD = D->getDescribedVarTemplate()) {
936 Record.push_back(VarTemplate);
937 Record.AddDeclRef(TemplD);
938 } else if (MemberSpecializationInfo *SpecInfo
939 = D->getMemberSpecializationInfo()) {
940 Record.push_back(StaticDataMemberSpecialization);
941 Record.AddDeclRef(SpecInfo->getInstantiatedFrom());
942 Record.push_back(SpecInfo->getTemplateSpecializationKind());
943 Record.AddSourceLocation(SpecInfo->getPointOfInstantiation());
945 Record.push_back(VarNotTemplate);
948 if (D->getDeclContext() == D->getLexicalDeclContext() &&
952 !D->isInvalidDecl() &&
953 !D->isReferenced() &&
954 !D->isTopLevelDeclInObjCContainer() &&
955 D->getAccess() == AS_none &&
956 !D->isModulePrivate() &&
957 !needsAnonymousDeclarationNumber(D) &&
958 D->getDeclName().getNameKind() == DeclarationName::Identifier &&
960 D->getFirstDecl() == D->getMostRecentDecl() &&
961 D->getKind() == Decl::Var &&
964 !D->isInitCapture() &&
965 !D->isPreviousDeclInSameBlockScope() &&
966 !D->getMemberSpecializationInfo())
967 AbbrevToUse = Writer.getDeclVarAbbrev();
969 Code = serialization::DECL_VAR;
972 void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
974 Code = serialization::DECL_IMPLICIT_PARAM;
977 void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) {
979 Record.push_back(D->isObjCMethodParameter());
980 Record.push_back(D->getFunctionScopeDepth());
981 Record.push_back(D->getFunctionScopeIndex());
982 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding
983 Record.push_back(D->isKNRPromoted());
984 Record.push_back(D->hasInheritedDefaultArg());
985 Record.push_back(D->hasUninstantiatedDefaultArg());
986 if (D->hasUninstantiatedDefaultArg())
987 Record.AddStmt(D->getUninstantiatedDefaultArg());
988 Code = serialization::DECL_PARM_VAR;
990 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl
992 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here
993 // we dynamically check for the properties that we optimize for, but don't
994 // know are true of all PARM_VAR_DECLs.
995 if (D->getDeclContext() == D->getLexicalDeclContext() &&
1000 !D->isInvalidDecl() &&
1001 !D->isReferenced() &&
1002 D->getAccess() == AS_none &&
1003 !D->isModulePrivate() &&
1004 D->getStorageClass() == 0 &&
1005 D->getInitStyle() == VarDecl::CInit && // Can params have anything else?
1006 D->getFunctionScopeDepth() == 0 &&
1007 D->getObjCDeclQualifier() == 0 &&
1008 !D->isKNRPromoted() &&
1009 !D->hasInheritedDefaultArg() &&
1010 D->getInit() == nullptr &&
1011 !D->hasUninstantiatedDefaultArg()) // No default expr.
1012 AbbrevToUse = Writer.getDeclParmVarAbbrev();
1014 // Check things we know are true of *every* PARM_VAR_DECL, which is more than
1015 // just us assuming it.
1016 assert(!D->getTSCSpec() && "PARM_VAR_DECL can't use TLS");
1017 assert(!D->isThisDeclarationADemotedDefinition()
1018 && "PARM_VAR_DECL can't be demoted definition.");
1019 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private");
1020 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var");
1021 assert(D->getPreviousDecl() == nullptr && "PARM_VAR_DECL can't be redecl");
1022 assert(!D->isStaticDataMember() &&
1023 "PARM_VAR_DECL can't be static data member");
1026 void ASTDeclWriter::VisitDecompositionDecl(DecompositionDecl *D) {
1027 // Record the number of bindings first to simplify deserialization.
1028 Record.push_back(D->bindings().size());
1031 for (auto *B : D->bindings())
1032 Record.AddDeclRef(B);
1033 Code = serialization::DECL_DECOMPOSITION;
1036 void ASTDeclWriter::VisitBindingDecl(BindingDecl *D) {
1038 Record.AddStmt(D->getBinding());
1039 Code = serialization::DECL_BINDING;
1042 void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
1044 Record.AddStmt(D->getAsmString());
1045 Record.AddSourceLocation(D->getRParenLoc());
1046 Code = serialization::DECL_FILE_SCOPE_ASM;
1049 void ASTDeclWriter::VisitEmptyDecl(EmptyDecl *D) {
1051 Code = serialization::DECL_EMPTY;
1054 void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) {
1056 Record.AddStmt(D->getBody());
1057 Record.AddTypeSourceInfo(D->getSignatureAsWritten());
1058 Record.push_back(D->param_size());
1059 for (ParmVarDecl *P : D->parameters())
1060 Record.AddDeclRef(P);
1061 Record.push_back(D->isVariadic());
1062 Record.push_back(D->blockMissingReturnType());
1063 Record.push_back(D->isConversionFromLambda());
1064 Record.push_back(D->capturesCXXThis());
1065 Record.push_back(D->getNumCaptures());
1066 for (const auto &capture : D->captures()) {
1067 Record.AddDeclRef(capture.getVariable());
1070 if (capture.isByRef()) flags |= 1;
1071 if (capture.isNested()) flags |= 2;
1072 if (capture.hasCopyExpr()) flags |= 4;
1073 Record.push_back(flags);
1075 if (capture.hasCopyExpr()) Record.AddStmt(capture.getCopyExpr());
1078 Code = serialization::DECL_BLOCK;
1081 void ASTDeclWriter::VisitCapturedDecl(CapturedDecl *CD) {
1082 Record.push_back(CD->getNumParams());
1084 Record.push_back(CD->getContextParamPosition());
1085 Record.push_back(CD->isNothrow() ? 1 : 0);
1086 // Body is stored by VisitCapturedStmt.
1087 for (unsigned I = 0; I < CD->getNumParams(); ++I)
1088 Record.AddDeclRef(CD->getParam(I));
1089 Code = serialization::DECL_CAPTURED;
1092 void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
1094 Record.push_back(D->getLanguage());
1095 Record.AddSourceLocation(D->getExternLoc());
1096 Record.AddSourceLocation(D->getRBraceLoc());
1097 Code = serialization::DECL_LINKAGE_SPEC;
1100 void ASTDeclWriter::VisitExportDecl(ExportDecl *D) {
1102 Record.AddSourceLocation(D->getRBraceLoc());
1103 Code = serialization::DECL_EXPORT;
1106 void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) {
1108 Record.AddSourceLocation(D->getLocStart());
1109 Code = serialization::DECL_LABEL;
1113 void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) {
1114 VisitRedeclarable(D);
1116 Record.push_back(D->isInline());
1117 Record.AddSourceLocation(D->getLocStart());
1118 Record.AddSourceLocation(D->getRBraceLoc());
1120 if (D->isOriginalNamespace())
1121 Record.AddDeclRef(D->getAnonymousNamespace());
1122 Code = serialization::DECL_NAMESPACE;
1124 if (Writer.hasChain() && D->isAnonymousNamespace() &&
1125 D == D->getMostRecentDecl()) {
1126 // This is a most recent reopening of the anonymous namespace. If its parent
1127 // is in a previous PCH (or is the TU), mark that parent for update, because
1128 // the original namespace always points to the latest re-opening of its
1129 // anonymous namespace.
1130 Decl *Parent = cast<Decl>(
1131 D->getParent()->getRedeclContext()->getPrimaryContext());
1132 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) {
1133 Writer.DeclUpdates[Parent].push_back(
1134 ASTWriter::DeclUpdate(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE, D));
1139 void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
1140 VisitRedeclarable(D);
1142 Record.AddSourceLocation(D->getNamespaceLoc());
1143 Record.AddSourceLocation(D->getTargetNameLoc());
1144 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1145 Record.AddDeclRef(D->getNamespace());
1146 Code = serialization::DECL_NAMESPACE_ALIAS;
1149 void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) {
1151 Record.AddSourceLocation(D->getUsingLoc());
1152 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1153 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName());
1154 Record.AddDeclRef(D->FirstUsingShadow.getPointer());
1155 Record.push_back(D->hasTypename());
1156 Record.AddDeclRef(Context.getInstantiatedFromUsingDecl(D));
1157 Code = serialization::DECL_USING;
1160 void ASTDeclWriter::VisitUsingPackDecl(UsingPackDecl *D) {
1161 Record.push_back(D->NumExpansions);
1163 Record.AddDeclRef(D->getInstantiatedFromUsingDecl());
1164 for (auto *E : D->expansions())
1165 Record.AddDeclRef(E);
1166 Code = serialization::DECL_USING_PACK;
1169 void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) {
1170 VisitRedeclarable(D);
1172 Record.AddDeclRef(D->getTargetDecl());
1173 Record.AddDeclRef(D->UsingOrNextShadow);
1174 Record.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D));
1175 Code = serialization::DECL_USING_SHADOW;
1178 void ASTDeclWriter::VisitConstructorUsingShadowDecl(
1179 ConstructorUsingShadowDecl *D) {
1180 VisitUsingShadowDecl(D);
1181 Record.AddDeclRef(D->NominatedBaseClassShadowDecl);
1182 Record.AddDeclRef(D->ConstructedBaseClassShadowDecl);
1183 Record.push_back(D->IsVirtual);
1184 Code = serialization::DECL_CONSTRUCTOR_USING_SHADOW;
1187 void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
1189 Record.AddSourceLocation(D->getUsingLoc());
1190 Record.AddSourceLocation(D->getNamespaceKeyLocation());
1191 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1192 Record.AddDeclRef(D->getNominatedNamespace());
1193 Record.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()));
1194 Code = serialization::DECL_USING_DIRECTIVE;
1197 void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
1199 Record.AddSourceLocation(D->getUsingLoc());
1200 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1201 Record.AddDeclarationNameLoc(D->DNLoc, D->getDeclName());
1202 Record.AddSourceLocation(D->getEllipsisLoc());
1203 Code = serialization::DECL_UNRESOLVED_USING_VALUE;
1206 void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl(
1207 UnresolvedUsingTypenameDecl *D) {
1209 Record.AddSourceLocation(D->getTypenameLoc());
1210 Record.AddNestedNameSpecifierLoc(D->getQualifierLoc());
1211 Record.AddSourceLocation(D->getEllipsisLoc());
1212 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME;
1215 void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) {
1219 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
1221 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) {
1222 Record.push_back(CXXRecTemplate);
1223 Record.AddDeclRef(TemplD);
1224 } else if (MemberSpecializationInfo *MSInfo
1225 = D->getMemberSpecializationInfo()) {
1226 Record.push_back(CXXRecMemberSpecialization);
1227 Record.AddDeclRef(MSInfo->getInstantiatedFrom());
1228 Record.push_back(MSInfo->getTemplateSpecializationKind());
1229 Record.AddSourceLocation(MSInfo->getPointOfInstantiation());
1231 Record.push_back(CXXRecNotTemplate);
1234 Record.push_back(D->isThisDeclarationADefinition());
1235 if (D->isThisDeclarationADefinition())
1236 Record.AddCXXDefinitionData(D);
1238 // Store (what we currently believe to be) the key function to avoid
1239 // deserializing every method so we can compute it.
1240 if (D->IsCompleteDefinition)
1241 Record.AddDeclRef(Context.getCurrentKeyFunction(D));
1243 Code = serialization::DECL_CXX_RECORD;
1246 void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) {
1247 VisitFunctionDecl(D);
1248 if (D->isCanonicalDecl()) {
1249 Record.push_back(D->size_overridden_methods());
1250 for (CXXMethodDecl::method_iterator
1251 I = D->begin_overridden_methods(), E = D->end_overridden_methods();
1253 Record.AddDeclRef(*I);
1255 // We only need to record overridden methods once for the canonical decl.
1256 Record.push_back(0);
1259 if (D->getDeclContext() == D->getLexicalDeclContext() &&
1260 D->getFirstDecl() == D->getMostRecentDecl() &&
1261 !D->isInvalidDecl() &&
1263 !D->isTopLevelDeclInObjCContainer() &&
1264 D->getDeclName().getNameKind() == DeclarationName::Identifier &&
1266 !D->hasInheritedPrototype() &&
1267 D->hasWrittenPrototype())
1268 AbbrevToUse = Writer.getDeclCXXMethodAbbrev();
1270 Code = serialization::DECL_CXX_METHOD;
1273 void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
1274 if (auto Inherited = D->getInheritedConstructor()) {
1275 Record.AddDeclRef(Inherited.getShadowDecl());
1276 Record.AddDeclRef(Inherited.getConstructor());
1277 Code = serialization::DECL_CXX_INHERITED_CONSTRUCTOR;
1279 Code = serialization::DECL_CXX_CONSTRUCTOR;
1282 VisitCXXMethodDecl(D);
1284 Code = D->isInheritingConstructor()
1285 ? serialization::DECL_CXX_INHERITED_CONSTRUCTOR
1286 : serialization::DECL_CXX_CONSTRUCTOR;
1289 void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
1290 VisitCXXMethodDecl(D);
1292 Record.AddDeclRef(D->getOperatorDelete());
1294 Code = serialization::DECL_CXX_DESTRUCTOR;
1297 void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) {
1298 VisitCXXMethodDecl(D);
1299 Code = serialization::DECL_CXX_CONVERSION;
1302 void ASTDeclWriter::VisitImportDecl(ImportDecl *D) {
1304 Record.push_back(Writer.getSubmoduleID(D->getImportedModule()));
1305 ArrayRef<SourceLocation> IdentifierLocs = D->getIdentifierLocs();
1306 Record.push_back(!IdentifierLocs.empty());
1307 if (IdentifierLocs.empty()) {
1308 Record.AddSourceLocation(D->getLocEnd());
1309 Record.push_back(1);
1311 for (unsigned I = 0, N = IdentifierLocs.size(); I != N; ++I)
1312 Record.AddSourceLocation(IdentifierLocs[I]);
1313 Record.push_back(IdentifierLocs.size());
1315 // Note: the number of source locations must always be the last element in
1317 Code = serialization::DECL_IMPORT;
1320 void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) {
1322 Record.AddSourceLocation(D->getColonLoc());
1323 Code = serialization::DECL_ACCESS_SPEC;
1326 void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) {
1327 // Record the number of friend type template parameter lists here
1328 // so as to simplify memory allocation during deserialization.
1329 Record.push_back(D->NumTPLists);
1331 bool hasFriendDecl = D->Friend.is<NamedDecl*>();
1332 Record.push_back(hasFriendDecl);
1334 Record.AddDeclRef(D->getFriendDecl());
1336 Record.AddTypeSourceInfo(D->getFriendType());
1337 for (unsigned i = 0; i < D->NumTPLists; ++i)
1338 Record.AddTemplateParameterList(D->getFriendTypeTemplateParameterList(i));
1339 Record.AddDeclRef(D->getNextFriend());
1340 Record.push_back(D->UnsupportedFriend);
1341 Record.AddSourceLocation(D->FriendLoc);
1342 Code = serialization::DECL_FRIEND;
1345 void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
1347 Record.push_back(D->getNumTemplateParameters());
1348 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i)
1349 Record.AddTemplateParameterList(D->getTemplateParameterList(i));
1350 Record.push_back(D->getFriendDecl() != nullptr);
1351 if (D->getFriendDecl())
1352 Record.AddDeclRef(D->getFriendDecl());
1354 Record.AddTypeSourceInfo(D->getFriendType());
1355 Record.AddSourceLocation(D->getFriendLoc());
1356 Code = serialization::DECL_FRIEND_TEMPLATE;
1359 void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) {
1362 Record.AddDeclRef(D->getTemplatedDecl());
1363 Record.AddTemplateParameterList(D->getTemplateParameters());
1366 void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
1367 VisitRedeclarable(D);
1369 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that
1370 // getCommonPtr() can be used while this is still initializing.
1371 if (D->isFirstDecl()) {
1372 // This declaration owns the 'common' pointer, so serialize that data now.
1373 Record.AddDeclRef(D->getInstantiatedFromMemberTemplate());
1374 if (D->getInstantiatedFromMemberTemplate())
1375 Record.push_back(D->isMemberSpecialization());
1378 VisitTemplateDecl(D);
1379 Record.push_back(D->getIdentifierNamespace());
1382 void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
1383 VisitRedeclarableTemplateDecl(D);
1385 if (D->isFirstDecl())
1386 AddTemplateSpecializations(D);
1387 Code = serialization::DECL_CLASS_TEMPLATE;
1390 void ASTDeclWriter::VisitClassTemplateSpecializationDecl(
1391 ClassTemplateSpecializationDecl *D) {
1392 RegisterTemplateSpecialization(D->getSpecializedTemplate(), D);
1394 VisitCXXRecordDecl(D);
1396 llvm::PointerUnion<ClassTemplateDecl *,
1397 ClassTemplatePartialSpecializationDecl *> InstFrom
1398 = D->getSpecializedTemplateOrPartial();
1399 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) {
1400 Record.AddDeclRef(InstFromD);
1402 Record.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>());
1403 Record.AddTemplateArgumentList(&D->getTemplateInstantiationArgs());
1406 Record.AddTemplateArgumentList(&D->getTemplateArgs());
1407 Record.AddSourceLocation(D->getPointOfInstantiation());
1408 Record.push_back(D->getSpecializationKind());
1409 Record.push_back(D->isCanonicalDecl());
1411 if (D->isCanonicalDecl()) {
1412 // When reading, we'll add it to the folding set of the following template.
1413 Record.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl());
1417 Record.AddTypeSourceInfo(D->getTypeAsWritten());
1418 if (D->getTypeAsWritten()) {
1419 Record.AddSourceLocation(D->getExternLoc());
1420 Record.AddSourceLocation(D->getTemplateKeywordLoc());
1423 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION;
1426 void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl(
1427 ClassTemplatePartialSpecializationDecl *D) {
1428 VisitClassTemplateSpecializationDecl(D);
1430 Record.AddTemplateParameterList(D->getTemplateParameters());
1431 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten());
1433 // These are read/set from/to the first declaration.
1434 if (D->getPreviousDecl() == nullptr) {
1435 Record.AddDeclRef(D->getInstantiatedFromMember());
1436 Record.push_back(D->isMemberSpecialization());
1439 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION;
1442 void ASTDeclWriter::VisitVarTemplateDecl(VarTemplateDecl *D) {
1443 VisitRedeclarableTemplateDecl(D);
1445 if (D->isFirstDecl())
1446 AddTemplateSpecializations(D);
1447 Code = serialization::DECL_VAR_TEMPLATE;
1450 void ASTDeclWriter::VisitVarTemplateSpecializationDecl(
1451 VarTemplateSpecializationDecl *D) {
1452 RegisterTemplateSpecialization(D->getSpecializedTemplate(), D);
1456 llvm::PointerUnion<VarTemplateDecl *, VarTemplatePartialSpecializationDecl *>
1457 InstFrom = D->getSpecializedTemplateOrPartial();
1458 if (Decl *InstFromD = InstFrom.dyn_cast<VarTemplateDecl *>()) {
1459 Record.AddDeclRef(InstFromD);
1461 Record.AddDeclRef(InstFrom.get<VarTemplatePartialSpecializationDecl *>());
1462 Record.AddTemplateArgumentList(&D->getTemplateInstantiationArgs());
1466 Record.AddTypeSourceInfo(D->getTypeAsWritten());
1467 if (D->getTypeAsWritten()) {
1468 Record.AddSourceLocation(D->getExternLoc());
1469 Record.AddSourceLocation(D->getTemplateKeywordLoc());
1472 Record.AddTemplateArgumentList(&D->getTemplateArgs());
1473 Record.AddSourceLocation(D->getPointOfInstantiation());
1474 Record.push_back(D->getSpecializationKind());
1475 Record.push_back(D->isCanonicalDecl());
1477 if (D->isCanonicalDecl()) {
1478 // When reading, we'll add it to the folding set of the following template.
1479 Record.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl());
1482 Code = serialization::DECL_VAR_TEMPLATE_SPECIALIZATION;
1485 void ASTDeclWriter::VisitVarTemplatePartialSpecializationDecl(
1486 VarTemplatePartialSpecializationDecl *D) {
1487 VisitVarTemplateSpecializationDecl(D);
1489 Record.AddTemplateParameterList(D->getTemplateParameters());
1490 Record.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten());
1492 // These are read/set from/to the first declaration.
1493 if (D->getPreviousDecl() == nullptr) {
1494 Record.AddDeclRef(D->getInstantiatedFromMember());
1495 Record.push_back(D->isMemberSpecialization());
1498 Code = serialization::DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION;
1501 void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl(
1502 ClassScopeFunctionSpecializationDecl *D) {
1504 Record.AddDeclRef(D->getSpecialization());
1505 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION;
1509 void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
1510 VisitRedeclarableTemplateDecl(D);
1512 if (D->isFirstDecl())
1513 AddTemplateSpecializations(D);
1514 Code = serialization::DECL_FUNCTION_TEMPLATE;
1517 void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
1520 Record.push_back(D->wasDeclaredWithTypename());
1522 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1523 !D->defaultArgumentWasInherited();
1524 Record.push_back(OwnsDefaultArg);
1526 Record.AddTypeSourceInfo(D->getDefaultArgumentInfo());
1528 Code = serialization::DECL_TEMPLATE_TYPE_PARM;
1531 void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
1532 // For an expanded parameter pack, record the number of expansion types here
1533 // so that it's easier for deserialization to allocate the right amount of
1535 if (D->isExpandedParameterPack())
1536 Record.push_back(D->getNumExpansionTypes());
1538 VisitDeclaratorDecl(D);
1539 // TemplateParmPosition.
1540 Record.push_back(D->getDepth());
1541 Record.push_back(D->getPosition());
1543 if (D->isExpandedParameterPack()) {
1544 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) {
1545 Record.AddTypeRef(D->getExpansionType(I));
1546 Record.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I));
1549 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK;
1551 // Rest of NonTypeTemplateParmDecl.
1552 Record.push_back(D->isParameterPack());
1553 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1554 !D->defaultArgumentWasInherited();
1555 Record.push_back(OwnsDefaultArg);
1557 Record.AddStmt(D->getDefaultArgument());
1558 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM;
1562 void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
1563 // For an expanded parameter pack, record the number of expansion types here
1564 // so that it's easier for deserialization to allocate the right amount of
1566 if (D->isExpandedParameterPack())
1567 Record.push_back(D->getNumExpansionTemplateParameters());
1569 VisitTemplateDecl(D);
1570 // TemplateParmPosition.
1571 Record.push_back(D->getDepth());
1572 Record.push_back(D->getPosition());
1574 if (D->isExpandedParameterPack()) {
1575 for (unsigned I = 0, N = D->getNumExpansionTemplateParameters();
1577 Record.AddTemplateParameterList(D->getExpansionTemplateParameters(I));
1578 Code = serialization::DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK;
1580 // Rest of TemplateTemplateParmDecl.
1581 Record.push_back(D->isParameterPack());
1582 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1583 !D->defaultArgumentWasInherited();
1584 Record.push_back(OwnsDefaultArg);
1586 Record.AddTemplateArgumentLoc(D->getDefaultArgument());
1587 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM;
1591 void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) {
1592 VisitRedeclarableTemplateDecl(D);
1593 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE;
1596 void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) {
1598 Record.AddStmt(D->getAssertExpr());
1599 Record.push_back(D->isFailed());
1600 Record.AddStmt(D->getMessage());
1601 Record.AddSourceLocation(D->getRParenLoc());
1602 Code = serialization::DECL_STATIC_ASSERT;
1605 /// \brief Emit the DeclContext part of a declaration context decl.
1606 void ASTDeclWriter::VisitDeclContext(DeclContext *DC) {
1607 Record.AddOffset(Writer.WriteDeclContextLexicalBlock(Context, DC));
1608 Record.AddOffset(Writer.WriteDeclContextVisibleBlock(Context, DC));
1611 const Decl *ASTWriter::getFirstLocalDecl(const Decl *D) {
1612 assert(IsLocalDecl(D) && "expected a local declaration");
1614 const Decl *Canon = D->getCanonicalDecl();
1615 if (IsLocalDecl(Canon))
1618 const Decl *&CacheEntry = FirstLocalDeclCache[Canon];
1622 for (const Decl *Redecl = D; Redecl; Redecl = Redecl->getPreviousDecl())
1623 if (IsLocalDecl(Redecl))
1625 return CacheEntry = D;
1628 template <typename T>
1629 void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) {
1630 T *First = D->getFirstDecl();
1631 T *MostRecent = First->getMostRecentDecl();
1632 T *DAsT = static_cast<T *>(D);
1633 if (MostRecent != First) {
1634 assert(isRedeclarableDeclKind(DAsT->getKind()) &&
1635 "Not considered redeclarable?");
1637 Record.AddDeclRef(First);
1639 // Write out a list of local redeclarations of this declaration if it's the
1640 // first local declaration in the chain.
1641 const Decl *FirstLocal = Writer.getFirstLocalDecl(DAsT);
1642 if (DAsT == FirstLocal) {
1643 // Emit a list of all imported first declarations so that we can be sure
1644 // that all redeclarations visible to this module are before D in the
1646 unsigned I = Record.size();
1647 Record.push_back(0);
1649 AddFirstDeclFromEachModule(DAsT, /*IncludeLocal*/false);
1650 // This is the number of imported first declarations + 1.
1651 Record[I] = Record.size() - I;
1653 // Collect the set of local redeclarations of this declaration, from
1654 // newest to oldest.
1655 ASTWriter::RecordData LocalRedecls;
1656 ASTRecordWriter LocalRedeclWriter(Record, LocalRedecls);
1657 for (const Decl *Prev = FirstLocal->getMostRecentDecl();
1658 Prev != FirstLocal; Prev = Prev->getPreviousDecl())
1659 if (!Prev->isFromASTFile())
1660 LocalRedeclWriter.AddDeclRef(Prev);
1662 // If we have any redecls, write them now as a separate record preceding
1663 // the declaration itself.
1664 if (LocalRedecls.empty())
1665 Record.push_back(0);
1667 Record.AddOffset(LocalRedeclWriter.Emit(LOCAL_REDECLARATIONS));
1669 Record.push_back(0);
1670 Record.AddDeclRef(FirstLocal);
1673 // Make sure that we serialize both the previous and the most-recent
1674 // declarations, which (transitively) ensures that all declarations in the
1675 // chain get serialized.
1677 // FIXME: This is not correct; when we reach an imported declaration we
1678 // won't emit its previous declaration.
1679 (void)Writer.GetDeclRef(D->getPreviousDecl());
1680 (void)Writer.GetDeclRef(MostRecent);
1682 // We use the sentinel value 0 to indicate an only declaration.
1683 Record.push_back(0);
1687 void ASTDeclWriter::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
1688 Record.push_back(D->varlist_size());
1690 for (auto *I : D->varlists())
1692 Code = serialization::DECL_OMP_THREADPRIVATE;
1695 void ASTDeclWriter::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) {
1697 Record.AddSourceLocation(D->getLocStart());
1698 Record.AddStmt(D->getCombiner());
1699 Record.AddStmt(D->getInitializer());
1700 Record.AddDeclRef(D->getPrevDeclInScope());
1701 Code = serialization::DECL_OMP_DECLARE_REDUCTION;
1704 void ASTDeclWriter::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) {
1706 Code = serialization::DECL_OMP_CAPTUREDEXPR;
1709 //===----------------------------------------------------------------------===//
1710 // ASTWriter Implementation
1711 //===----------------------------------------------------------------------===//
1713 void ASTWriter::WriteDeclAbbrevs() {
1714 using namespace llvm;
1716 std::shared_ptr<BitCodeAbbrev> Abv;
1718 // Abbreviation for DECL_FIELD
1719 Abv = std::make_shared<BitCodeAbbrev>();
1720 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD));
1722 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1723 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1724 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1725 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1726 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1727 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1728 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1729 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1730 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1731 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1732 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1734 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1735 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1736 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1738 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1740 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1741 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1743 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1744 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth
1746 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1747 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1748 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1749 DeclFieldAbbrev = Stream.EmitAbbrev(std::move(Abv));
1751 // Abbreviation for DECL_OBJC_IVAR
1752 Abv = std::make_shared<BitCodeAbbrev>();
1753 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR));
1755 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1756 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1757 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1758 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1759 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1760 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1761 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1762 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1763 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1764 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1765 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1767 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1768 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1769 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1771 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1773 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1774 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1776 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1777 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth
1779 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl
1780 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize
1782 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1783 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1784 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1785 DeclObjCIvarAbbrev = Stream.EmitAbbrev(std::move(Abv));
1787 // Abbreviation for DECL_ENUM
1788 Abv = std::make_shared<BitCodeAbbrev>();
1789 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM));
1791 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1793 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1794 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1795 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1796 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1797 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1798 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1799 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1800 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1801 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1802 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1803 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1805 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1806 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1807 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1809 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1810 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1812 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1813 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1814 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
1815 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1816 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
1817 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired
1818 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1819 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1820 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind
1822 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef
1823 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType
1824 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType
1825 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits
1826 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits
1827 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped
1828 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag
1829 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed
1830 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum
1832 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1833 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1834 DeclEnumAbbrev = Stream.EmitAbbrev(std::move(Abv));
1836 // Abbreviation for DECL_RECORD
1837 Abv = std::make_shared<BitCodeAbbrev>();
1838 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD));
1840 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1842 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1843 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1844 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1845 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1846 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1847 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1848 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1849 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1850 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1851 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1852 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1854 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1855 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1856 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1858 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1859 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1861 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1862 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1863 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
1864 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1865 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
1866 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired
1867 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1868 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1869 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind
1871 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember
1872 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion
1873 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember
1874 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasVolatileMember
1876 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1877 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1878 DeclRecordAbbrev = Stream.EmitAbbrev(std::move(Abv));
1880 // Abbreviation for DECL_PARM_VAR
1881 Abv = std::make_shared<BitCodeAbbrev>();
1882 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR));
1884 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1886 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1887 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1888 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1889 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1890 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1891 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1892 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1893 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1894 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1895 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1896 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1898 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1899 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1900 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1902 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1904 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1905 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1907 Abv->Add(BitCodeAbbrevOp(0)); // SClass
1908 Abv->Add(BitCodeAbbrevOp(0)); // TSCSpec
1909 Abv->Add(BitCodeAbbrevOp(0)); // InitStyle
1910 Abv->Add(BitCodeAbbrevOp(0)); // Linkage
1911 Abv->Add(BitCodeAbbrevOp(0)); // HasInit
1912 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo
1914 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter
1915 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth
1916 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex
1917 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier
1918 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted
1919 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg
1920 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg
1922 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1923 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1924 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1925 DeclParmVarAbbrev = Stream.EmitAbbrev(std::move(Abv));
1927 // Abbreviation for DECL_TYPEDEF
1928 Abv = std::make_shared<BitCodeAbbrev>();
1929 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF));
1931 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1933 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1934 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1935 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1936 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1937 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1938 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isUsed
1939 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isReferenced
1940 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1941 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // C++ AccessSpecifier
1942 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1943 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1945 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1946 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1947 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1949 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1950 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1952 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1953 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1954 DeclTypedefAbbrev = Stream.EmitAbbrev(std::move(Abv));
1956 // Abbreviation for DECL_VAR
1957 Abv = std::make_shared<BitCodeAbbrev>();
1958 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR));
1960 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1962 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1963 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
1964 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1965 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1966 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1967 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1968 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1969 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1970 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1971 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1972 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1974 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1975 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1976 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1978 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1980 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1981 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1983 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // SClass
1984 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // TSCSpec
1985 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // InitStyle
1986 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsThisDeclarationADemotedDefinition
1987 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable
1988 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable
1989 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl
1990 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong
1991 Abv->Add(BitCodeAbbrevOp(0)); // isInline
1992 Abv->Add(BitCodeAbbrevOp(0)); // isInlineSpecified
1993 Abv->Add(BitCodeAbbrevOp(0)); // isConstexpr
1994 Abv->Add(BitCodeAbbrevOp(0)); // isInitCapture
1995 Abv->Add(BitCodeAbbrevOp(0)); // isPrevDeclInSameScope
1996 Abv->Add(BitCodeAbbrevOp(0)); // ImplicitParamKind
1997 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage
1998 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // IsInitICE (local)
1999 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // VarKind (local enum)
2001 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
2002 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
2003 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
2004 DeclVarAbbrev = Stream.EmitAbbrev(std::move(Abv));
2006 // Abbreviation for DECL_CXX_METHOD
2007 Abv = std::make_shared<BitCodeAbbrev>();
2008 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CXX_METHOD));
2010 Abv->Add(BitCodeAbbrevOp(0)); // CanonicalDecl
2012 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
2013 Abv->Add(BitCodeAbbrevOp(0)); // LexicalDeclContext
2014 Abv->Add(BitCodeAbbrevOp(0)); // Invalid
2015 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
2016 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Implicit
2017 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Used
2018 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Referenced
2019 Abv->Add(BitCodeAbbrevOp(0)); // InObjCContainer
2020 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Access
2021 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ModulePrivate
2022 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
2024 Abv->Add(BitCodeAbbrevOp(DeclarationName::Identifier)); // NameKind
2025 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Identifier
2026 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
2028 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2030 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerLocStart
2031 Abv->Add(BitCodeAbbrevOp(0)); // HasExtInfo
2033 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 11)); // IDNS
2034 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // StorageClass
2035 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Inline
2036 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InlineSpecified
2037 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ExplicitSpecified
2038 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // VirtualAsWritten
2039 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Pure
2040 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedProto
2041 Abv->Add(BitCodeAbbrevOp(1)); // HasWrittenProto
2042 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Deleted
2043 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Trivial
2044 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Defaulted
2045 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ExplicitlyDefaulted
2046 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ImplicitReturnZero
2047 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constexpr
2048 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // UsesSEHTry
2049 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // SkippedBody
2050 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // LateParsed
2051 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage
2052 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LocEnd
2053 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // TemplateKind
2054 // This Array slurps the rest of the record. Fortunately we want to encode
2055 // (nearly) all the remaining (variable number of) fields in the same way.
2057 // This is the function template information if any, then
2058 // NumParams and Params[] from FunctionDecl, and
2059 // NumOverriddenMethods, OverriddenMethods[] from CXXMethodDecl.
2061 // Add an AbbrevOp for 'size then elements' and use it here.
2062 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
2063 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
2064 DeclCXXMethodAbbrev = Stream.EmitAbbrev(std::move(Abv));
2066 // Abbreviation for EXPR_DECL_REF
2067 Abv = std::make_shared<BitCodeAbbrev>();
2068 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF));
2071 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2072 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2073 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2074 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2075 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2076 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2077 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2079 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier
2080 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound
2081 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs
2082 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates
2083 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed,
2084 1)); // RefersToEnclosingVariableOrCapture
2085 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef
2086 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
2087 DeclRefExprAbbrev = Stream.EmitAbbrev(std::move(Abv));
2089 // Abbreviation for EXPR_INTEGER_LITERAL
2090 Abv = std::make_shared<BitCodeAbbrev>();
2091 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL));
2094 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2095 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2096 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2097 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2098 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2099 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2100 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2102 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
2103 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width
2104 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value
2105 IntegerLiteralAbbrev = Stream.EmitAbbrev(std::move(Abv));
2107 // Abbreviation for EXPR_CHARACTER_LITERAL
2108 Abv = std::make_shared<BitCodeAbbrev>();
2109 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL));
2112 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2113 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2114 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2115 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2116 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2117 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2118 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2120 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue
2121 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
2122 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // getKind
2123 CharacterLiteralAbbrev = Stream.EmitAbbrev(std::move(Abv));
2125 // Abbreviation for EXPR_IMPLICIT_CAST
2126 Abv = std::make_shared<BitCodeAbbrev>();
2127 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_IMPLICIT_CAST));
2130 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
2131 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
2132 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
2133 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
2134 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
2135 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
2136 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
2138 Abv->Add(BitCodeAbbrevOp(0)); // PathSize
2139 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 6)); // CastKind
2141 ExprImplicitCastAbbrev = Stream.EmitAbbrev(std::move(Abv));
2143 Abv = std::make_shared<BitCodeAbbrev>();
2144 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL));
2145 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2146 DeclContextLexicalAbbrev = Stream.EmitAbbrev(std::move(Abv));
2148 Abv = std::make_shared<BitCodeAbbrev>();
2149 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE));
2150 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2151 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(std::move(Abv));
2154 /// isRequiredDecl - Check if this is a "required" Decl, which must be seen by
2155 /// consumers of the AST.
2157 /// Such decls will always be deserialized from the AST file, so we would like
2158 /// this to be as restrictive as possible. Currently the predicate is driven by
2159 /// code generation requirements, if other clients have a different notion of
2160 /// what is "required" then we may have to consider an alternate scheme where
2161 /// clients can iterate over the top-level decls and get information on them,
2162 /// without necessary deserializing them. We could explicitly require such
2163 /// clients to use a separate API call to "realize" the decl. This should be
2164 /// relatively painless since they would presumably only do it for top-level
2166 static bool isRequiredDecl(const Decl *D, ASTContext &Context,
2167 bool WritingModule) {
2168 // An ObjCMethodDecl is never considered as "required" because its
2169 // implementation container always is.
2171 // File scoped assembly or obj-c or OMP declare target implementation must be
2173 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D) ||
2174 D->hasAttr<OMPDeclareTargetDeclAttr>())
2177 if (WritingModule && (isa<VarDecl>(D) || isa<ImportDecl>(D))) {
2178 // These declarations are part of the module initializer, and are emitted
2179 // if and when the module is imported, rather than being emitted eagerly.
2183 return Context.DeclMustBeEmitted(D);
2186 void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) {
2187 // Determine the ID for this declaration.
2188 serialization::DeclID ID;
2189 assert(!D->isFromASTFile() && "should not be emitting imported decl");
2190 serialization::DeclID &IDR = DeclIDs[D];
2196 assert(ID >= FirstDeclID && "invalid decl ID");
2199 ASTDeclWriter W(*this, Context, Record);
2201 // Build a record for this declaration
2204 // Emit this declaration to the bitstream.
2205 uint64_t Offset = W.Emit(D);
2207 // Record the offset for this declaration
2208 SourceLocation Loc = D->getLocation();
2209 unsigned Index = ID - FirstDeclID;
2210 if (DeclOffsets.size() == Index)
2211 DeclOffsets.push_back(DeclOffset(Loc, Offset));
2212 else if (DeclOffsets.size() < Index) {
2213 // FIXME: Can/should this happen?
2214 DeclOffsets.resize(Index+1);
2215 DeclOffsets[Index].setLocation(Loc);
2216 DeclOffsets[Index].BitOffset = Offset;
2218 llvm_unreachable("declarations should be emitted in ID order");
2221 SourceManager &SM = Context.getSourceManager();
2222 if (Loc.isValid() && SM.isLocalSourceLocation(Loc))
2223 associateDeclWithFile(D, ID);
2225 // Note declarations that should be deserialized eagerly so that we can add
2226 // them to a record in the AST file later.
2227 if (isRequiredDecl(D, Context, WritingModule))
2228 EagerlyDeserializedDecls.push_back(ID);
2231 void ASTRecordWriter::AddFunctionDefinition(const FunctionDecl *FD) {
2232 // Switch case IDs are per function body.
2233 Writer->ClearSwitchCaseIDs();
2235 assert(FD->doesThisDeclarationHaveABody());
2236 bool ModulesCodegen = Writer->Context->getLangOpts().ModulesCodegen &&
2237 Writer->WritingModule && !FD->isDependentContext();
2238 Record->push_back(ModulesCodegen);
2240 Writer->ModularCodegenDecls.push_back(Writer->GetDeclRef(FD));
2241 if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) {
2242 Record->push_back(CD->getNumCtorInitializers());
2243 if (CD->getNumCtorInitializers())
2244 AddCXXCtorInitializers(
2245 llvm::makeArrayRef(CD->init_begin(), CD->init_end()));
2247 AddStmt(FD->getBody());