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 "clang/Serialization/ASTWriter.h"
15 #include "ASTCommon.h"
16 #include "clang/AST/DeclCXX.h"
17 #include "clang/AST/DeclContextInternals.h"
18 #include "clang/AST/DeclTemplate.h"
19 #include "clang/AST/DeclVisitor.h"
20 #include "clang/AST/Expr.h"
21 #include "clang/Basic/SourceManager.h"
22 #include "clang/Serialization/ASTReader.h"
23 #include "llvm/ADT/Twine.h"
24 #include "llvm/Bitcode/BitstreamWriter.h"
25 #include "llvm/Support/ErrorHandling.h"
26 using namespace clang;
27 using namespace serialization;
29 //===----------------------------------------------------------------------===//
30 // Declaration serialization
31 //===----------------------------------------------------------------------===//
34 class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> {
38 typedef ASTWriter::RecordData RecordData;
42 serialization::DeclCode Code;
45 ASTDeclWriter(ASTWriter &Writer, ASTContext &Context, RecordData &Record)
46 : Writer(Writer), Context(Context), Record(Record) {
51 void VisitDecl(Decl *D);
52 void VisitTranslationUnitDecl(TranslationUnitDecl *D);
53 void VisitNamedDecl(NamedDecl *D);
54 void VisitLabelDecl(LabelDecl *LD);
55 void VisitNamespaceDecl(NamespaceDecl *D);
56 void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
57 void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
58 void VisitTypeDecl(TypeDecl *D);
59 void VisitTypedefNameDecl(TypedefNameDecl *D);
60 void VisitTypedefDecl(TypedefDecl *D);
61 void VisitTypeAliasDecl(TypeAliasDecl *D);
62 void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D);
63 void VisitTagDecl(TagDecl *D);
64 void VisitEnumDecl(EnumDecl *D);
65 void VisitRecordDecl(RecordDecl *D);
66 void VisitCXXRecordDecl(CXXRecordDecl *D);
67 void VisitClassTemplateSpecializationDecl(
68 ClassTemplateSpecializationDecl *D);
69 void VisitClassTemplatePartialSpecializationDecl(
70 ClassTemplatePartialSpecializationDecl *D);
71 void VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D);
72 void VisitVarTemplatePartialSpecializationDecl(
73 VarTemplatePartialSpecializationDecl *D);
74 void VisitClassScopeFunctionSpecializationDecl(
75 ClassScopeFunctionSpecializationDecl *D);
76 void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
77 void VisitValueDecl(ValueDecl *D);
78 void VisitEnumConstantDecl(EnumConstantDecl *D);
79 void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
80 void VisitDeclaratorDecl(DeclaratorDecl *D);
81 void VisitFunctionDecl(FunctionDecl *D);
82 void VisitCXXMethodDecl(CXXMethodDecl *D);
83 void VisitCXXConstructorDecl(CXXConstructorDecl *D);
84 void VisitCXXDestructorDecl(CXXDestructorDecl *D);
85 void VisitCXXConversionDecl(CXXConversionDecl *D);
86 void VisitFieldDecl(FieldDecl *D);
87 void VisitMSPropertyDecl(MSPropertyDecl *D);
88 void VisitIndirectFieldDecl(IndirectFieldDecl *D);
89 void VisitVarDecl(VarDecl *D);
90 void VisitImplicitParamDecl(ImplicitParamDecl *D);
91 void VisitParmVarDecl(ParmVarDecl *D);
92 void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
93 void VisitTemplateDecl(TemplateDecl *D);
94 void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D);
95 void VisitClassTemplateDecl(ClassTemplateDecl *D);
96 void VisitVarTemplateDecl(VarTemplateDecl *D);
97 void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
98 void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
99 void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D);
100 void VisitUsingDecl(UsingDecl *D);
101 void VisitUsingShadowDecl(UsingShadowDecl *D);
102 void VisitLinkageSpecDecl(LinkageSpecDecl *D);
103 void VisitFileScopeAsmDecl(FileScopeAsmDecl *D);
104 void VisitImportDecl(ImportDecl *D);
105 void VisitAccessSpecDecl(AccessSpecDecl *D);
106 void VisitFriendDecl(FriendDecl *D);
107 void VisitFriendTemplateDecl(FriendTemplateDecl *D);
108 void VisitStaticAssertDecl(StaticAssertDecl *D);
109 void VisitBlockDecl(BlockDecl *D);
110 void VisitCapturedDecl(CapturedDecl *D);
111 void VisitEmptyDecl(EmptyDecl *D);
113 void VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset,
114 uint64_t VisibleOffset);
115 template <typename T> void VisitRedeclarable(Redeclarable<T> *D);
118 // FIXME: Put in the same order is DeclNodes.td?
119 void VisitObjCMethodDecl(ObjCMethodDecl *D);
120 void VisitObjCTypeParamDecl(ObjCTypeParamDecl *D);
121 void VisitObjCContainerDecl(ObjCContainerDecl *D);
122 void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
123 void VisitObjCIvarDecl(ObjCIvarDecl *D);
124 void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
125 void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
126 void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
127 void VisitObjCImplDecl(ObjCImplDecl *D);
128 void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
129 void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
130 void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
131 void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
132 void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
133 void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D);
135 /// Add an Objective-C type parameter list to the given record.
136 void AddObjCTypeParamList(ObjCTypeParamList *typeParams) {
137 // Empty type parameter list.
143 Record.push_back(typeParams->size());
144 for (auto typeParam : *typeParams) {
145 Writer.AddDeclRef(typeParam, Record);
147 Writer.AddSourceLocation(typeParams->getLAngleLoc(), Record);
148 Writer.AddSourceLocation(typeParams->getRAngleLoc(), Record);
151 void AddFunctionDefinition(const FunctionDecl *FD) {
152 assert(FD->doesThisDeclarationHaveABody());
153 if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) {
154 Record.push_back(CD->NumCtorInitializers);
155 if (CD->NumCtorInitializers)
156 Writer.AddCXXCtorInitializersRef(
157 llvm::makeArrayRef(CD->init_begin(), CD->init_end()), Record);
159 Writer.AddStmt(FD->getBody());
162 /// Get the specialization decl from an entry in the specialization list.
163 template <typename EntryType>
164 typename RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::DeclType *
165 getSpecializationDecl(EntryType &T) {
166 return RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::getDecl(&T);
169 /// Get the list of partial specializations from a template's common ptr.
171 decltype(T::PartialSpecializations) &getPartialSpecializations(T *Common) {
172 return Common->PartialSpecializations;
174 ArrayRef<Decl> getPartialSpecializations(FunctionTemplateDecl::Common *) {
178 template<typename Decl>
179 void AddTemplateSpecializations(Decl *D) {
180 auto *Common = D->getCommonPtr();
182 // If we have any lazy specializations, and the external AST source is
183 // our chained AST reader, we can just write out the DeclIDs. Otherwise,
184 // we need to resolve them to actual declarations.
185 if (Writer.Chain != Writer.Context->getExternalSource() &&
186 Common->LazySpecializations) {
187 D->LoadLazySpecializations();
188 assert(!Common->LazySpecializations);
191 auto &Specializations = Common->Specializations;
192 auto &&PartialSpecializations = getPartialSpecializations(Common);
193 ArrayRef<DeclID> LazySpecializations;
194 if (auto *LS = Common->LazySpecializations)
195 LazySpecializations = ArrayRef<DeclID>(LS + 1, LS + 1 + LS[0]);
197 Record.push_back(Specializations.size() +
198 PartialSpecializations.size() +
199 LazySpecializations.size());
200 for (auto &Entry : Specializations) {
201 auto *D = getSpecializationDecl(Entry);
202 assert(D->isCanonicalDecl() && "non-canonical decl in set");
203 Writer.AddDeclRef(D, Record);
205 for (auto &Entry : PartialSpecializations) {
206 auto *D = getSpecializationDecl(Entry);
207 assert(D->isCanonicalDecl() && "non-canonical decl in set");
208 Writer.AddDeclRef(D, Record);
210 Record.append(LazySpecializations.begin(), LazySpecializations.end());
215 void ASTDeclWriter::Visit(Decl *D) {
216 DeclVisitor<ASTDeclWriter>::Visit(D);
218 // Source locations require array (variable-length) abbreviations. The
219 // abbreviation infrastructure requires that arrays are encoded last, so
220 // we handle it here in the case of those classes derived from DeclaratorDecl
221 if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)){
222 Writer.AddTypeSourceInfo(DD->getTypeSourceInfo(), Record);
225 // Handle FunctionDecl's body here and write it after all other Stmts/Exprs
226 // have been written. We want it last because we will not read it back when
227 // retrieving it from the AST, we'll just lazily set the offset.
228 if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
229 Record.push_back(FD->doesThisDeclarationHaveABody());
230 if (FD->doesThisDeclarationHaveABody())
231 AddFunctionDefinition(FD);
235 void ASTDeclWriter::VisitDecl(Decl *D) {
236 Writer.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()), Record);
237 Writer.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()), Record);
238 Record.push_back(D->isInvalidDecl());
239 Record.push_back(D->hasAttrs());
241 Writer.WriteAttributes(llvm::makeArrayRef(D->getAttrs().begin(),
242 D->getAttrs().size()), Record);
243 Record.push_back(D->isImplicit());
244 Record.push_back(D->isUsed(false));
245 Record.push_back(D->isReferenced());
246 Record.push_back(D->isTopLevelDeclInObjCContainer());
247 Record.push_back(D->getAccess());
248 Record.push_back(D->isModulePrivate());
249 Record.push_back(Writer.inferSubmoduleIDFromLocation(D->getLocation()));
251 // If this declaration injected a name into a context different from its
252 // lexical context, and that context is an imported namespace, we need to
253 // update its visible declarations to include this name.
255 // This happens when we instantiate a class with a friend declaration or a
256 // function with a local extern declaration, for instance.
258 // FIXME: Can we handle this in AddedVisibleDecl instead?
259 if (D->isOutOfLine()) {
260 auto *DC = D->getDeclContext();
261 while (auto *NS = dyn_cast<NamespaceDecl>(DC->getRedeclContext())) {
262 if (!NS->isFromASTFile())
264 Writer.UpdatedDeclContexts.insert(NS->getPrimaryContext());
265 if (!NS->isInlineNamespace())
267 DC = NS->getParent();
272 void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
273 llvm_unreachable("Translation units aren't directly serialized");
276 void ASTDeclWriter::VisitNamedDecl(NamedDecl *D) {
278 Writer.AddDeclarationName(D->getDeclName(), Record);
279 Record.push_back(needsAnonymousDeclarationNumber(D)
280 ? Writer.getAnonymousDeclarationNumber(D)
284 void ASTDeclWriter::VisitTypeDecl(TypeDecl *D) {
286 Writer.AddSourceLocation(D->getLocStart(), Record);
287 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
290 void ASTDeclWriter::VisitTypedefNameDecl(TypedefNameDecl *D) {
291 VisitRedeclarable(D);
293 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record);
294 Record.push_back(D->isModed());
296 Writer.AddTypeRef(D->getUnderlyingType(), Record);
299 void ASTDeclWriter::VisitTypedefDecl(TypedefDecl *D) {
300 VisitTypedefNameDecl(D);
301 if (!D->hasAttrs() &&
303 D->getFirstDecl() == D->getMostRecentDecl() &&
304 !D->isInvalidDecl() &&
305 !D->isTopLevelDeclInObjCContainer() &&
306 !D->isModulePrivate() &&
307 !needsAnonymousDeclarationNumber(D) &&
308 D->getDeclName().getNameKind() == DeclarationName::Identifier)
309 AbbrevToUse = Writer.getDeclTypedefAbbrev();
311 Code = serialization::DECL_TYPEDEF;
314 void ASTDeclWriter::VisitTypeAliasDecl(TypeAliasDecl *D) {
315 VisitTypedefNameDecl(D);
316 Writer.AddDeclRef(D->getDescribedAliasTemplate(), Record);
317 Code = serialization::DECL_TYPEALIAS;
320 void ASTDeclWriter::VisitTagDecl(TagDecl *D) {
321 VisitRedeclarable(D);
323 Record.push_back(D->getIdentifierNamespace());
324 Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding
325 if (!isa<CXXRecordDecl>(D))
326 Record.push_back(D->isCompleteDefinition());
327 Record.push_back(D->isEmbeddedInDeclarator());
328 Record.push_back(D->isFreeStanding());
329 Record.push_back(D->isCompleteDefinitionRequired());
330 Writer.AddSourceLocation(D->getRBraceLoc(), Record);
332 if (D->hasExtInfo()) {
334 Writer.AddQualifierInfo(*D->getExtInfo(), Record);
335 } else if (auto *TD = D->getTypedefNameForAnonDecl()) {
337 Writer.AddDeclRef(TD, Record);
338 Writer.AddIdentifierRef(TD->getDeclName().getAsIdentifierInfo(), Record);
339 } else if (auto *DD = D->getDeclaratorForAnonDecl()) {
341 Writer.AddDeclRef(DD, Record);
347 void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) {
349 Writer.AddTypeSourceInfo(D->getIntegerTypeSourceInfo(), Record);
350 if (!D->getIntegerTypeSourceInfo())
351 Writer.AddTypeRef(D->getIntegerType(), Record);
352 Writer.AddTypeRef(D->getPromotionType(), Record);
353 Record.push_back(D->getNumPositiveBits());
354 Record.push_back(D->getNumNegativeBits());
355 Record.push_back(D->isScoped());
356 Record.push_back(D->isScopedUsingClassTag());
357 Record.push_back(D->isFixed());
358 if (MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo()) {
359 Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record);
360 Record.push_back(MemberInfo->getTemplateSpecializationKind());
361 Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record);
363 Writer.AddDeclRef(nullptr, Record);
366 if (!D->hasAttrs() &&
370 !D->getTypedefNameForAnonDecl() &&
371 !D->getDeclaratorForAnonDecl() &&
372 D->getFirstDecl() == D->getMostRecentDecl() &&
373 !D->isInvalidDecl() &&
374 !D->isReferenced() &&
375 !D->isTopLevelDeclInObjCContainer() &&
376 D->getAccess() == AS_none &&
377 !D->isModulePrivate() &&
378 !CXXRecordDecl::classofKind(D->getKind()) &&
379 !D->getIntegerTypeSourceInfo() &&
380 !D->getMemberSpecializationInfo() &&
381 !needsAnonymousDeclarationNumber(D) &&
382 D->getDeclName().getNameKind() == DeclarationName::Identifier)
383 AbbrevToUse = Writer.getDeclEnumAbbrev();
385 Code = serialization::DECL_ENUM;
388 void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) {
390 Record.push_back(D->hasFlexibleArrayMember());
391 Record.push_back(D->isAnonymousStructOrUnion());
392 Record.push_back(D->hasObjectMember());
393 Record.push_back(D->hasVolatileMember());
395 if (!D->hasAttrs() &&
399 !D->getTypedefNameForAnonDecl() &&
400 !D->getDeclaratorForAnonDecl() &&
401 D->getFirstDecl() == D->getMostRecentDecl() &&
402 !D->isInvalidDecl() &&
403 !D->isReferenced() &&
404 !D->isTopLevelDeclInObjCContainer() &&
405 D->getAccess() == AS_none &&
406 !D->isModulePrivate() &&
407 !CXXRecordDecl::classofKind(D->getKind()) &&
408 !needsAnonymousDeclarationNumber(D) &&
409 D->getDeclName().getNameKind() == DeclarationName::Identifier)
410 AbbrevToUse = Writer.getDeclRecordAbbrev();
412 Code = serialization::DECL_RECORD;
415 void ASTDeclWriter::VisitValueDecl(ValueDecl *D) {
417 Writer.AddTypeRef(D->getType(), Record);
420 void ASTDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) {
422 Record.push_back(D->getInitExpr()? 1 : 0);
423 if (D->getInitExpr())
424 Writer.AddStmt(D->getInitExpr());
425 Writer.AddAPSInt(D->getInitVal(), Record);
427 Code = serialization::DECL_ENUM_CONSTANT;
430 void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) {
432 Writer.AddSourceLocation(D->getInnerLocStart(), Record);
433 Record.push_back(D->hasExtInfo());
435 Writer.AddQualifierInfo(*D->getExtInfo(), Record);
438 void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) {
439 VisitRedeclarable(D);
440 VisitDeclaratorDecl(D);
441 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
442 Record.push_back(D->getIdentifierNamespace());
444 // FunctionDecl's body is handled last at ASTWriterDecl::Visit,
445 // after everything else is written.
447 Record.push_back((int)D->SClass); // FIXME: stable encoding
448 Record.push_back(D->IsInline);
449 Record.push_back(D->IsInlineSpecified);
450 Record.push_back(D->IsVirtualAsWritten);
451 Record.push_back(D->IsPure);
452 Record.push_back(D->HasInheritedPrototype);
453 Record.push_back(D->HasWrittenPrototype);
454 Record.push_back(D->IsDeleted);
455 Record.push_back(D->IsTrivial);
456 Record.push_back(D->IsDefaulted);
457 Record.push_back(D->IsExplicitlyDefaulted);
458 Record.push_back(D->HasImplicitReturnZero);
459 Record.push_back(D->IsConstexpr);
460 Record.push_back(D->HasSkippedBody);
461 Record.push_back(D->IsLateTemplateParsed);
462 Record.push_back(D->getLinkageInternal());
463 Writer.AddSourceLocation(D->getLocEnd(), Record);
465 Record.push_back(D->getTemplatedKind());
466 switch (D->getTemplatedKind()) {
467 case FunctionDecl::TK_NonTemplate:
469 case FunctionDecl::TK_FunctionTemplate:
470 Writer.AddDeclRef(D->getDescribedFunctionTemplate(), Record);
472 case FunctionDecl::TK_MemberSpecialization: {
473 MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo();
474 Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record);
475 Record.push_back(MemberInfo->getTemplateSpecializationKind());
476 Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record);
479 case FunctionDecl::TK_FunctionTemplateSpecialization: {
480 FunctionTemplateSpecializationInfo *
481 FTSInfo = D->getTemplateSpecializationInfo();
482 Writer.AddDeclRef(FTSInfo->getTemplate(), Record);
483 Record.push_back(FTSInfo->getTemplateSpecializationKind());
485 // Template arguments.
486 Writer.AddTemplateArgumentList(FTSInfo->TemplateArguments, Record);
488 // Template args as written.
489 Record.push_back(FTSInfo->TemplateArgumentsAsWritten != nullptr);
490 if (FTSInfo->TemplateArgumentsAsWritten) {
491 Record.push_back(FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs);
492 for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs;
494 Writer.AddTemplateArgumentLoc((*FTSInfo->TemplateArgumentsAsWritten)[i],
496 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc,
498 Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc,
502 Writer.AddSourceLocation(FTSInfo->getPointOfInstantiation(), Record);
504 if (D->isCanonicalDecl()) {
505 // Write the template that contains the specializations set. We will
506 // add a FunctionTemplateSpecializationInfo to it when reading.
507 Writer.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl(), Record);
511 case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
512 DependentFunctionTemplateSpecializationInfo *
513 DFTSInfo = D->getDependentSpecializationInfo();
516 Record.push_back(DFTSInfo->getNumTemplates());
517 for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i)
518 Writer.AddDeclRef(DFTSInfo->getTemplate(i), Record);
521 Record.push_back(DFTSInfo->getNumTemplateArgs());
522 for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i)
523 Writer.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i), Record);
524 Writer.AddSourceLocation(DFTSInfo->getLAngleLoc(), Record);
525 Writer.AddSourceLocation(DFTSInfo->getRAngleLoc(), Record);
530 Record.push_back(D->param_size());
531 for (auto P : D->params())
532 Writer.AddDeclRef(P, Record);
533 Code = serialization::DECL_FUNCTION;
536 void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
538 // FIXME: convert to LazyStmtPtr?
539 // Unlike C/C++, method bodies will never be in header files.
540 bool HasBodyStuff = D->getBody() != nullptr ||
541 D->getSelfDecl() != nullptr || D->getCmdDecl() != nullptr;
542 Record.push_back(HasBodyStuff);
544 Writer.AddStmt(D->getBody());
545 Writer.AddDeclRef(D->getSelfDecl(), Record);
546 Writer.AddDeclRef(D->getCmdDecl(), Record);
548 Record.push_back(D->isInstanceMethod());
549 Record.push_back(D->isVariadic());
550 Record.push_back(D->isPropertyAccessor());
551 Record.push_back(D->isDefined());
552 Record.push_back(D->IsOverriding);
553 Record.push_back(D->HasSkippedBody);
555 Record.push_back(D->IsRedeclaration);
556 Record.push_back(D->HasRedeclaration);
557 if (D->HasRedeclaration) {
558 assert(Context.getObjCMethodRedeclaration(D));
559 Writer.AddDeclRef(Context.getObjCMethodRedeclaration(D), Record);
562 // FIXME: stable encoding for @required/@optional
563 Record.push_back(D->getImplementationControl());
564 // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway/nullability
565 Record.push_back(D->getObjCDeclQualifier());
566 Record.push_back(D->hasRelatedResultType());
567 Writer.AddTypeRef(D->getReturnType(), Record);
568 Writer.AddTypeSourceInfo(D->getReturnTypeSourceInfo(), Record);
569 Writer.AddSourceLocation(D->getLocEnd(), Record);
570 Record.push_back(D->param_size());
571 for (const auto *P : D->params())
572 Writer.AddDeclRef(P, Record);
574 Record.push_back(D->SelLocsKind);
575 unsigned NumStoredSelLocs = D->getNumStoredSelLocs();
576 SourceLocation *SelLocs = D->getStoredSelLocs();
577 Record.push_back(NumStoredSelLocs);
578 for (unsigned i = 0; i != NumStoredSelLocs; ++i)
579 Writer.AddSourceLocation(SelLocs[i], Record);
581 Code = serialization::DECL_OBJC_METHOD;
584 void ASTDeclWriter::VisitObjCTypeParamDecl(ObjCTypeParamDecl *D) {
585 VisitTypedefNameDecl(D);
586 Record.push_back(D->Variance);
587 Record.push_back(D->Index);
588 Writer.AddSourceLocation(D->VarianceLoc, Record);
589 Writer.AddSourceLocation(D->ColonLoc, Record);
591 Code = serialization::DECL_OBJC_TYPE_PARAM;
594 void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) {
596 Writer.AddSourceLocation(D->getAtStartLoc(), Record);
597 Writer.AddSourceRange(D->getAtEndRange(), Record);
598 // Abstract class (no need to define a stable serialization::DECL code).
601 void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
602 VisitRedeclarable(D);
603 VisitObjCContainerDecl(D);
604 Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
605 AddObjCTypeParamList(D->TypeParamList);
607 Record.push_back(D->isThisDeclarationADefinition());
608 if (D->isThisDeclarationADefinition()) {
609 // Write the DefinitionData
610 ObjCInterfaceDecl::DefinitionData &Data = D->data();
612 Writer.AddTypeSourceInfo(D->getSuperClassTInfo(), Record);
613 Writer.AddSourceLocation(D->getEndOfDefinitionLoc(), Record);
614 Record.push_back(Data.HasDesignatedInitializers);
616 // Write out the protocols that are directly referenced by the @interface.
617 Record.push_back(Data.ReferencedProtocols.size());
618 for (const auto *P : D->protocols())
619 Writer.AddDeclRef(P, Record);
620 for (const auto &PL : D->protocol_locs())
621 Writer.AddSourceLocation(PL, Record);
623 // Write out the protocols that are transitively referenced.
624 Record.push_back(Data.AllReferencedProtocols.size());
625 for (ObjCList<ObjCProtocolDecl>::iterator
626 P = Data.AllReferencedProtocols.begin(),
627 PEnd = Data.AllReferencedProtocols.end();
629 Writer.AddDeclRef(*P, Record);
632 if (ObjCCategoryDecl *Cat = D->getCategoryListRaw()) {
633 // Ensure that we write out the set of categories for this class.
634 Writer.ObjCClassesWithCategories.insert(D);
636 // Make sure that the categories get serialized.
637 for (; Cat; Cat = Cat->getNextClassCategoryRaw())
638 (void)Writer.GetDeclRef(Cat);
642 Code = serialization::DECL_OBJC_INTERFACE;
645 void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
647 // FIXME: stable encoding for @public/@private/@protected/@package
648 Record.push_back(D->getAccessControl());
649 Record.push_back(D->getSynthesize());
651 if (!D->hasAttrs() &&
654 !D->isInvalidDecl() &&
655 !D->isReferenced() &&
656 !D->isModulePrivate() &&
660 AbbrevToUse = Writer.getDeclObjCIvarAbbrev();
662 Code = serialization::DECL_OBJC_IVAR;
665 void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
666 VisitRedeclarable(D);
667 VisitObjCContainerDecl(D);
669 Record.push_back(D->isThisDeclarationADefinition());
670 if (D->isThisDeclarationADefinition()) {
671 Record.push_back(D->protocol_size());
672 for (const auto *I : D->protocols())
673 Writer.AddDeclRef(I, Record);
674 for (const auto &PL : D->protocol_locs())
675 Writer.AddSourceLocation(PL, Record);
678 Code = serialization::DECL_OBJC_PROTOCOL;
681 void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) {
683 Code = serialization::DECL_OBJC_AT_DEFS_FIELD;
686 void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
687 VisitObjCContainerDecl(D);
688 Writer.AddSourceLocation(D->getCategoryNameLoc(), Record);
689 Writer.AddSourceLocation(D->getIvarLBraceLoc(), Record);
690 Writer.AddSourceLocation(D->getIvarRBraceLoc(), Record);
691 Writer.AddDeclRef(D->getClassInterface(), Record);
692 AddObjCTypeParamList(D->TypeParamList);
693 Record.push_back(D->protocol_size());
694 for (const auto *I : D->protocols())
695 Writer.AddDeclRef(I, Record);
696 for (const auto &PL : D->protocol_locs())
697 Writer.AddSourceLocation(PL, Record);
698 Code = serialization::DECL_OBJC_CATEGORY;
701 void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) {
703 Writer.AddDeclRef(D->getClassInterface(), Record);
704 Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS;
707 void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
709 Writer.AddSourceLocation(D->getAtLoc(), Record);
710 Writer.AddSourceLocation(D->getLParenLoc(), Record);
711 Writer.AddTypeRef(D->getType(), Record);
712 Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record);
713 // FIXME: stable encoding
714 Record.push_back((unsigned)D->getPropertyAttributes());
715 Record.push_back((unsigned)D->getPropertyAttributesAsWritten());
716 // FIXME: stable encoding
717 Record.push_back((unsigned)D->getPropertyImplementation());
718 Writer.AddDeclarationName(D->getGetterName(), Record);
719 Writer.AddDeclarationName(D->getSetterName(), Record);
720 Writer.AddDeclRef(D->getGetterMethodDecl(), Record);
721 Writer.AddDeclRef(D->getSetterMethodDecl(), Record);
722 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record);
723 Code = serialization::DECL_OBJC_PROPERTY;
726 void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) {
727 VisitObjCContainerDecl(D);
728 Writer.AddDeclRef(D->getClassInterface(), Record);
729 // Abstract class (no need to define a stable serialization::DECL code).
732 void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
733 VisitObjCImplDecl(D);
734 Writer.AddIdentifierRef(D->getIdentifier(), Record);
735 Writer.AddSourceLocation(D->getCategoryNameLoc(), Record);
736 Code = serialization::DECL_OBJC_CATEGORY_IMPL;
739 void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
740 VisitObjCImplDecl(D);
741 Writer.AddDeclRef(D->getSuperClass(), Record);
742 Writer.AddSourceLocation(D->getSuperClassLoc(), Record);
743 Writer.AddSourceLocation(D->getIvarLBraceLoc(), Record);
744 Writer.AddSourceLocation(D->getIvarRBraceLoc(), Record);
745 Record.push_back(D->hasNonZeroConstructors());
746 Record.push_back(D->hasDestructors());
747 Record.push_back(D->NumIvarInitializers);
748 if (D->NumIvarInitializers)
749 Writer.AddCXXCtorInitializersRef(
750 llvm::makeArrayRef(D->init_begin(), D->init_end()), Record);
751 Code = serialization::DECL_OBJC_IMPLEMENTATION;
754 void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
756 Writer.AddSourceLocation(D->getLocStart(), Record);
757 Writer.AddDeclRef(D->getPropertyDecl(), Record);
758 Writer.AddDeclRef(D->getPropertyIvarDecl(), Record);
759 Writer.AddSourceLocation(D->getPropertyIvarDeclLoc(), Record);
760 Writer.AddStmt(D->getGetterCXXConstructor());
761 Writer.AddStmt(D->getSetterCXXAssignment());
762 Code = serialization::DECL_OBJC_PROPERTY_IMPL;
765 void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) {
766 VisitDeclaratorDecl(D);
767 Record.push_back(D->isMutable());
768 if (D->InitStorage.getInt() == FieldDecl::ISK_BitWidthOrNothing &&
769 D->InitStorage.getPointer() == nullptr) {
771 } else if (D->InitStorage.getInt() == FieldDecl::ISK_CapturedVLAType) {
772 Record.push_back(D->InitStorage.getInt() + 1);
774 QualType(static_cast<Type *>(D->InitStorage.getPointer()), 0),
777 Record.push_back(D->InitStorage.getInt() + 1);
778 Writer.AddStmt(static_cast<Expr *>(D->InitStorage.getPointer()));
780 if (!D->getDeclName())
781 Writer.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D), Record);
783 if (!D->hasAttrs() &&
786 !D->isInvalidDecl() &&
787 !D->isReferenced() &&
788 !D->isTopLevelDeclInObjCContainer() &&
789 !D->isModulePrivate() &&
791 !D->hasInClassInitializer() &&
793 !ObjCIvarDecl::classofKind(D->getKind()) &&
794 !ObjCAtDefsFieldDecl::classofKind(D->getKind()) &&
796 AbbrevToUse = Writer.getDeclFieldAbbrev();
798 Code = serialization::DECL_FIELD;
801 void ASTDeclWriter::VisitMSPropertyDecl(MSPropertyDecl *D) {
802 VisitDeclaratorDecl(D);
803 Writer.AddIdentifierRef(D->getGetterId(), Record);
804 Writer.AddIdentifierRef(D->getSetterId(), Record);
805 Code = serialization::DECL_MS_PROPERTY;
808 void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) {
810 Record.push_back(D->getChainingSize());
812 for (const auto *P : D->chain())
813 Writer.AddDeclRef(P, Record);
814 Code = serialization::DECL_INDIRECTFIELD;
817 void ASTDeclWriter::VisitVarDecl(VarDecl *D) {
818 VisitRedeclarable(D);
819 VisitDeclaratorDecl(D);
820 Record.push_back(D->getStorageClass());
821 Record.push_back(D->getTSCSpec());
822 Record.push_back(D->getInitStyle());
823 if (!isa<ParmVarDecl>(D)) {
824 Record.push_back(D->isExceptionVariable());
825 Record.push_back(D->isNRVOVariable());
826 Record.push_back(D->isCXXForRangeDecl());
827 Record.push_back(D->isARCPseudoStrong());
828 Record.push_back(D->isConstexpr());
829 Record.push_back(D->isInitCapture());
830 Record.push_back(D->isPreviousDeclInSameBlockScope());
832 Record.push_back(D->getLinkageInternal());
835 Record.push_back(!D->isInitKnownICE() ? 1 : (D->isInitICE() ? 3 : 2));
836 Writer.AddStmt(D->getInit());
842 VarNotTemplate = 0, VarTemplate, StaticDataMemberSpecialization
844 if (VarTemplateDecl *TemplD = D->getDescribedVarTemplate()) {
845 Record.push_back(VarTemplate);
846 Writer.AddDeclRef(TemplD, Record);
847 } else if (MemberSpecializationInfo *SpecInfo
848 = D->getMemberSpecializationInfo()) {
849 Record.push_back(StaticDataMemberSpecialization);
850 Writer.AddDeclRef(SpecInfo->getInstantiatedFrom(), Record);
851 Record.push_back(SpecInfo->getTemplateSpecializationKind());
852 Writer.AddSourceLocation(SpecInfo->getPointOfInstantiation(), Record);
854 Record.push_back(VarNotTemplate);
857 if (!D->hasAttrs() &&
860 !D->isInvalidDecl() &&
861 !D->isReferenced() &&
862 !D->isTopLevelDeclInObjCContainer() &&
863 D->getAccess() == AS_none &&
864 !D->isModulePrivate() &&
865 !needsAnonymousDeclarationNumber(D) &&
866 D->getDeclName().getNameKind() == DeclarationName::Identifier &&
868 D->getFirstDecl() == D->getMostRecentDecl() &&
869 D->getInitStyle() == VarDecl::CInit &&
870 D->getInit() == nullptr &&
871 !isa<ParmVarDecl>(D) &&
872 !isa<VarTemplateSpecializationDecl>(D) &&
874 !D->isInitCapture() &&
875 !D->isPreviousDeclInSameBlockScope() &&
876 !D->getMemberSpecializationInfo())
877 AbbrevToUse = Writer.getDeclVarAbbrev();
879 Code = serialization::DECL_VAR;
882 void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
884 Code = serialization::DECL_IMPLICIT_PARAM;
887 void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) {
889 Record.push_back(D->isObjCMethodParameter());
890 Record.push_back(D->getFunctionScopeDepth());
891 Record.push_back(D->getFunctionScopeIndex());
892 Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding
893 Record.push_back(D->isKNRPromoted());
894 Record.push_back(D->hasInheritedDefaultArg());
895 Record.push_back(D->hasUninstantiatedDefaultArg());
896 if (D->hasUninstantiatedDefaultArg())
897 Writer.AddStmt(D->getUninstantiatedDefaultArg());
898 Code = serialization::DECL_PARM_VAR;
900 assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl
902 // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here
903 // we dynamically check for the properties that we optimize for, but don't
904 // know are true of all PARM_VAR_DECLs.
905 if (!D->hasAttrs() &&
909 !D->isInvalidDecl() &&
910 !D->isReferenced() &&
911 D->getAccess() == AS_none &&
912 !D->isModulePrivate() &&
913 D->getStorageClass() == 0 &&
914 D->getInitStyle() == VarDecl::CInit && // Can params have anything else?
915 D->getFunctionScopeDepth() == 0 &&
916 D->getObjCDeclQualifier() == 0 &&
917 !D->isKNRPromoted() &&
918 !D->hasInheritedDefaultArg() &&
919 D->getInit() == nullptr &&
920 !D->hasUninstantiatedDefaultArg()) // No default expr.
921 AbbrevToUse = Writer.getDeclParmVarAbbrev();
923 // Check things we know are true of *every* PARM_VAR_DECL, which is more than
924 // just us assuming it.
925 assert(!D->getTSCSpec() && "PARM_VAR_DECL can't use TLS");
926 assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private");
927 assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var");
928 assert(D->getPreviousDecl() == nullptr && "PARM_VAR_DECL can't be redecl");
929 assert(!D->isStaticDataMember() &&
930 "PARM_VAR_DECL can't be static data member");
933 void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
935 Writer.AddStmt(D->getAsmString());
936 Writer.AddSourceLocation(D->getRParenLoc(), Record);
937 Code = serialization::DECL_FILE_SCOPE_ASM;
940 void ASTDeclWriter::VisitEmptyDecl(EmptyDecl *D) {
942 Code = serialization::DECL_EMPTY;
945 void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) {
947 Writer.AddStmt(D->getBody());
948 Writer.AddTypeSourceInfo(D->getSignatureAsWritten(), Record);
949 Record.push_back(D->param_size());
950 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end();
952 Writer.AddDeclRef(*P, Record);
953 Record.push_back(D->isVariadic());
954 Record.push_back(D->blockMissingReturnType());
955 Record.push_back(D->isConversionFromLambda());
956 Record.push_back(D->capturesCXXThis());
957 Record.push_back(D->getNumCaptures());
958 for (const auto &capture : D->captures()) {
959 Writer.AddDeclRef(capture.getVariable(), Record);
962 if (capture.isByRef()) flags |= 1;
963 if (capture.isNested()) flags |= 2;
964 if (capture.hasCopyExpr()) flags |= 4;
965 Record.push_back(flags);
967 if (capture.hasCopyExpr()) Writer.AddStmt(capture.getCopyExpr());
970 Code = serialization::DECL_BLOCK;
973 void ASTDeclWriter::VisitCapturedDecl(CapturedDecl *CD) {
974 Record.push_back(CD->getNumParams());
976 Record.push_back(CD->getContextParamPosition());
977 Record.push_back(CD->isNothrow() ? 1 : 0);
978 // Body is stored by VisitCapturedStmt.
979 for (unsigned I = 0; I < CD->getNumParams(); ++I)
980 Writer.AddDeclRef(CD->getParam(I), Record);
981 Code = serialization::DECL_CAPTURED;
984 void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
986 Record.push_back(D->getLanguage());
987 Writer.AddSourceLocation(D->getExternLoc(), Record);
988 Writer.AddSourceLocation(D->getRBraceLoc(), Record);
989 Code = serialization::DECL_LINKAGE_SPEC;
992 void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) {
994 Writer.AddSourceLocation(D->getLocStart(), Record);
995 Code = serialization::DECL_LABEL;
999 void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) {
1000 VisitRedeclarable(D);
1002 Record.push_back(D->isInline());
1003 Writer.AddSourceLocation(D->getLocStart(), Record);
1004 Writer.AddSourceLocation(D->getRBraceLoc(), Record);
1006 if (D->isOriginalNamespace())
1007 Writer.AddDeclRef(D->getAnonymousNamespace(), Record);
1008 Code = serialization::DECL_NAMESPACE;
1010 if (Writer.hasChain() && D->isAnonymousNamespace() &&
1011 D == D->getMostRecentDecl()) {
1012 // This is a most recent reopening of the anonymous namespace. If its parent
1013 // is in a previous PCH (or is the TU), mark that parent for update, because
1014 // the original namespace always points to the latest re-opening of its
1015 // anonymous namespace.
1016 Decl *Parent = cast<Decl>(
1017 D->getParent()->getRedeclContext()->getPrimaryContext());
1018 if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) {
1019 Writer.DeclUpdates[Parent].push_back(
1020 ASTWriter::DeclUpdate(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE, D));
1025 void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
1026 VisitRedeclarable(D);
1028 Writer.AddSourceLocation(D->getNamespaceLoc(), Record);
1029 Writer.AddSourceLocation(D->getTargetNameLoc(), Record);
1030 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
1031 Writer.AddDeclRef(D->getNamespace(), Record);
1032 Code = serialization::DECL_NAMESPACE_ALIAS;
1035 void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) {
1037 Writer.AddSourceLocation(D->getUsingLoc(), Record);
1038 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
1039 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
1040 Writer.AddDeclRef(D->FirstUsingShadow.getPointer(), Record);
1041 Record.push_back(D->hasTypename());
1042 Writer.AddDeclRef(Context.getInstantiatedFromUsingDecl(D), Record);
1043 Code = serialization::DECL_USING;
1046 void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) {
1047 VisitRedeclarable(D);
1049 Writer.AddDeclRef(D->getTargetDecl(), Record);
1050 Writer.AddDeclRef(D->UsingOrNextShadow, Record);
1051 Writer.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D), Record);
1052 Code = serialization::DECL_USING_SHADOW;
1055 void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
1057 Writer.AddSourceLocation(D->getUsingLoc(), Record);
1058 Writer.AddSourceLocation(D->getNamespaceKeyLocation(), Record);
1059 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
1060 Writer.AddDeclRef(D->getNominatedNamespace(), Record);
1061 Writer.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()), Record);
1062 Code = serialization::DECL_USING_DIRECTIVE;
1065 void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
1067 Writer.AddSourceLocation(D->getUsingLoc(), Record);
1068 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
1069 Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
1070 Code = serialization::DECL_UNRESOLVED_USING_VALUE;
1073 void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl(
1074 UnresolvedUsingTypenameDecl *D) {
1076 Writer.AddSourceLocation(D->getTypenameLoc(), Record);
1077 Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
1078 Code = serialization::DECL_UNRESOLVED_USING_TYPENAME;
1081 void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) {
1085 CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
1087 if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) {
1088 Record.push_back(CXXRecTemplate);
1089 Writer.AddDeclRef(TemplD, Record);
1090 } else if (MemberSpecializationInfo *MSInfo
1091 = D->getMemberSpecializationInfo()) {
1092 Record.push_back(CXXRecMemberSpecialization);
1093 Writer.AddDeclRef(MSInfo->getInstantiatedFrom(), Record);
1094 Record.push_back(MSInfo->getTemplateSpecializationKind());
1095 Writer.AddSourceLocation(MSInfo->getPointOfInstantiation(), Record);
1097 Record.push_back(CXXRecNotTemplate);
1100 Record.push_back(D->isThisDeclarationADefinition());
1101 if (D->isThisDeclarationADefinition())
1102 Writer.AddCXXDefinitionData(D, Record);
1104 // Store (what we currently believe to be) the key function to avoid
1105 // deserializing every method so we can compute it.
1106 if (D->IsCompleteDefinition)
1107 Writer.AddDeclRef(Context.getCurrentKeyFunction(D), Record);
1109 Code = serialization::DECL_CXX_RECORD;
1112 void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) {
1113 VisitFunctionDecl(D);
1114 if (D->isCanonicalDecl()) {
1115 Record.push_back(D->size_overridden_methods());
1116 for (CXXMethodDecl::method_iterator
1117 I = D->begin_overridden_methods(), E = D->end_overridden_methods();
1119 Writer.AddDeclRef(*I, Record);
1121 // We only need to record overridden methods once for the canonical decl.
1122 Record.push_back(0);
1125 if (D->getFirstDecl() == D->getMostRecentDecl() &&
1126 !D->isInvalidDecl() &&
1128 !D->isTopLevelDeclInObjCContainer() &&
1129 D->getDeclName().getNameKind() == DeclarationName::Identifier &&
1131 !D->hasInheritedPrototype() &&
1132 D->hasWrittenPrototype())
1133 AbbrevToUse = Writer.getDeclCXXMethodAbbrev();
1135 Code = serialization::DECL_CXX_METHOD;
1138 void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
1139 VisitCXXMethodDecl(D);
1141 Writer.AddDeclRef(D->getInheritedConstructor(), Record);
1142 Record.push_back(D->IsExplicitSpecified);
1144 Code = serialization::DECL_CXX_CONSTRUCTOR;
1147 void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
1148 VisitCXXMethodDecl(D);
1150 Writer.AddDeclRef(D->getOperatorDelete(), Record);
1152 Code = serialization::DECL_CXX_DESTRUCTOR;
1155 void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) {
1156 VisitCXXMethodDecl(D);
1157 Record.push_back(D->IsExplicitSpecified);
1158 Code = serialization::DECL_CXX_CONVERSION;
1161 void ASTDeclWriter::VisitImportDecl(ImportDecl *D) {
1163 Record.push_back(Writer.getSubmoduleID(D->getImportedModule()));
1164 ArrayRef<SourceLocation> IdentifierLocs = D->getIdentifierLocs();
1165 Record.push_back(!IdentifierLocs.empty());
1166 if (IdentifierLocs.empty()) {
1167 Writer.AddSourceLocation(D->getLocEnd(), Record);
1168 Record.push_back(1);
1170 for (unsigned I = 0, N = IdentifierLocs.size(); I != N; ++I)
1171 Writer.AddSourceLocation(IdentifierLocs[I], Record);
1172 Record.push_back(IdentifierLocs.size());
1174 // Note: the number of source locations must always be the last element in
1176 Code = serialization::DECL_IMPORT;
1179 void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) {
1181 Writer.AddSourceLocation(D->getColonLoc(), Record);
1182 Code = serialization::DECL_ACCESS_SPEC;
1185 void ASTDeclWriter::VisitFriendDecl(FriendDecl *D) {
1186 // Record the number of friend type template parameter lists here
1187 // so as to simplify memory allocation during deserialization.
1188 Record.push_back(D->NumTPLists);
1190 bool hasFriendDecl = D->Friend.is<NamedDecl*>();
1191 Record.push_back(hasFriendDecl);
1193 Writer.AddDeclRef(D->getFriendDecl(), Record);
1195 Writer.AddTypeSourceInfo(D->getFriendType(), Record);
1196 for (unsigned i = 0; i < D->NumTPLists; ++i)
1197 Writer.AddTemplateParameterList(D->getFriendTypeTemplateParameterList(i),
1199 Writer.AddDeclRef(D->getNextFriend(), Record);
1200 Record.push_back(D->UnsupportedFriend);
1201 Writer.AddSourceLocation(D->FriendLoc, Record);
1202 Code = serialization::DECL_FRIEND;
1205 void ASTDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
1207 Record.push_back(D->getNumTemplateParameters());
1208 for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i)
1209 Writer.AddTemplateParameterList(D->getTemplateParameterList(i), Record);
1210 Record.push_back(D->getFriendDecl() != nullptr);
1211 if (D->getFriendDecl())
1212 Writer.AddDeclRef(D->getFriendDecl(), Record);
1214 Writer.AddTypeSourceInfo(D->getFriendType(), Record);
1215 Writer.AddSourceLocation(D->getFriendLoc(), Record);
1216 Code = serialization::DECL_FRIEND_TEMPLATE;
1219 void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) {
1222 Writer.AddDeclRef(D->getTemplatedDecl(), Record);
1223 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record);
1226 void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
1227 VisitRedeclarable(D);
1229 // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that
1230 // getCommonPtr() can be used while this is still initializing.
1231 if (D->isFirstDecl()) {
1232 // This declaration owns the 'common' pointer, so serialize that data now.
1233 Writer.AddDeclRef(D->getInstantiatedFromMemberTemplate(), Record);
1234 if (D->getInstantiatedFromMemberTemplate())
1235 Record.push_back(D->isMemberSpecialization());
1238 VisitTemplateDecl(D);
1239 Record.push_back(D->getIdentifierNamespace());
1242 void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
1243 VisitRedeclarableTemplateDecl(D);
1245 if (D->isFirstDecl())
1246 AddTemplateSpecializations(D);
1247 Code = serialization::DECL_CLASS_TEMPLATE;
1250 void ASTDeclWriter::VisitClassTemplateSpecializationDecl(
1251 ClassTemplateSpecializationDecl *D) {
1252 VisitCXXRecordDecl(D);
1254 llvm::PointerUnion<ClassTemplateDecl *,
1255 ClassTemplatePartialSpecializationDecl *> InstFrom
1256 = D->getSpecializedTemplateOrPartial();
1257 if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) {
1258 Writer.AddDeclRef(InstFromD, Record);
1260 Writer.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>(),
1262 Writer.AddTemplateArgumentList(&D->getTemplateInstantiationArgs(), Record);
1265 Writer.AddTemplateArgumentList(&D->getTemplateArgs(), Record);
1266 Writer.AddSourceLocation(D->getPointOfInstantiation(), Record);
1267 Record.push_back(D->getSpecializationKind());
1268 Record.push_back(D->isCanonicalDecl());
1270 if (D->isCanonicalDecl()) {
1271 // When reading, we'll add it to the folding set of the following template.
1272 Writer.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl(), Record);
1276 Writer.AddTypeSourceInfo(D->getTypeAsWritten(), Record);
1277 if (D->getTypeAsWritten()) {
1278 Writer.AddSourceLocation(D->getExternLoc(), Record);
1279 Writer.AddSourceLocation(D->getTemplateKeywordLoc(), Record);
1282 Code = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION;
1285 void ASTDeclWriter::VisitClassTemplatePartialSpecializationDecl(
1286 ClassTemplatePartialSpecializationDecl *D) {
1287 VisitClassTemplateSpecializationDecl(D);
1289 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record);
1290 Writer.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten(), Record);
1292 // These are read/set from/to the first declaration.
1293 if (D->getPreviousDecl() == nullptr) {
1294 Writer.AddDeclRef(D->getInstantiatedFromMember(), Record);
1295 Record.push_back(D->isMemberSpecialization());
1298 Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION;
1301 void ASTDeclWriter::VisitVarTemplateDecl(VarTemplateDecl *D) {
1302 VisitRedeclarableTemplateDecl(D);
1304 if (D->isFirstDecl())
1305 AddTemplateSpecializations(D);
1306 Code = serialization::DECL_VAR_TEMPLATE;
1309 void ASTDeclWriter::VisitVarTemplateSpecializationDecl(
1310 VarTemplateSpecializationDecl *D) {
1313 llvm::PointerUnion<VarTemplateDecl *, VarTemplatePartialSpecializationDecl *>
1314 InstFrom = D->getSpecializedTemplateOrPartial();
1315 if (Decl *InstFromD = InstFrom.dyn_cast<VarTemplateDecl *>()) {
1316 Writer.AddDeclRef(InstFromD, Record);
1318 Writer.AddDeclRef(InstFrom.get<VarTemplatePartialSpecializationDecl *>(),
1320 Writer.AddTemplateArgumentList(&D->getTemplateInstantiationArgs(), Record);
1324 Writer.AddTypeSourceInfo(D->getTypeAsWritten(), Record);
1325 if (D->getTypeAsWritten()) {
1326 Writer.AddSourceLocation(D->getExternLoc(), Record);
1327 Writer.AddSourceLocation(D->getTemplateKeywordLoc(), Record);
1330 Writer.AddTemplateArgumentList(&D->getTemplateArgs(), Record);
1331 Writer.AddSourceLocation(D->getPointOfInstantiation(), Record);
1332 Record.push_back(D->getSpecializationKind());
1333 Record.push_back(D->isCanonicalDecl());
1335 if (D->isCanonicalDecl()) {
1336 // When reading, we'll add it to the folding set of the following template.
1337 Writer.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl(), Record);
1340 Code = serialization::DECL_VAR_TEMPLATE_SPECIALIZATION;
1343 void ASTDeclWriter::VisitVarTemplatePartialSpecializationDecl(
1344 VarTemplatePartialSpecializationDecl *D) {
1345 VisitVarTemplateSpecializationDecl(D);
1347 Writer.AddTemplateParameterList(D->getTemplateParameters(), Record);
1348 Writer.AddASTTemplateArgumentListInfo(D->getTemplateArgsAsWritten(), Record);
1350 // These are read/set from/to the first declaration.
1351 if (D->getPreviousDecl() == nullptr) {
1352 Writer.AddDeclRef(D->getInstantiatedFromMember(), Record);
1353 Record.push_back(D->isMemberSpecialization());
1356 Code = serialization::DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION;
1359 void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl(
1360 ClassScopeFunctionSpecializationDecl *D) {
1362 Writer.AddDeclRef(D->getSpecialization(), Record);
1363 Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION;
1367 void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
1368 VisitRedeclarableTemplateDecl(D);
1370 if (D->isFirstDecl())
1371 AddTemplateSpecializations(D);
1372 Code = serialization::DECL_FUNCTION_TEMPLATE;
1375 void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
1378 Record.push_back(D->wasDeclaredWithTypename());
1380 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1381 !D->defaultArgumentWasInherited();
1382 Record.push_back(OwnsDefaultArg);
1384 Writer.AddTypeSourceInfo(D->getDefaultArgumentInfo(), Record);
1386 Code = serialization::DECL_TEMPLATE_TYPE_PARM;
1389 void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
1390 // For an expanded parameter pack, record the number of expansion types here
1391 // so that it's easier for deserialization to allocate the right amount of
1393 if (D->isExpandedParameterPack())
1394 Record.push_back(D->getNumExpansionTypes());
1396 VisitDeclaratorDecl(D);
1397 // TemplateParmPosition.
1398 Record.push_back(D->getDepth());
1399 Record.push_back(D->getPosition());
1401 if (D->isExpandedParameterPack()) {
1402 for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) {
1403 Writer.AddTypeRef(D->getExpansionType(I), Record);
1404 Writer.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I), Record);
1407 Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK;
1409 // Rest of NonTypeTemplateParmDecl.
1410 Record.push_back(D->isParameterPack());
1411 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1412 !D->defaultArgumentWasInherited();
1413 Record.push_back(OwnsDefaultArg);
1415 Writer.AddStmt(D->getDefaultArgument());
1416 Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM;
1420 void ASTDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
1421 // For an expanded parameter pack, record the number of expansion types here
1422 // so that it's easier for deserialization to allocate the right amount of
1424 if (D->isExpandedParameterPack())
1425 Record.push_back(D->getNumExpansionTemplateParameters());
1427 VisitTemplateDecl(D);
1428 // TemplateParmPosition.
1429 Record.push_back(D->getDepth());
1430 Record.push_back(D->getPosition());
1432 if (D->isExpandedParameterPack()) {
1433 for (unsigned I = 0, N = D->getNumExpansionTemplateParameters();
1435 Writer.AddTemplateParameterList(D->getExpansionTemplateParameters(I),
1437 Code = serialization::DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK;
1439 // Rest of TemplateTemplateParmDecl.
1440 Record.push_back(D->isParameterPack());
1441 bool OwnsDefaultArg = D->hasDefaultArgument() &&
1442 !D->defaultArgumentWasInherited();
1443 Record.push_back(OwnsDefaultArg);
1445 Writer.AddTemplateArgumentLoc(D->getDefaultArgument(), Record);
1446 Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM;
1450 void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) {
1451 VisitRedeclarableTemplateDecl(D);
1452 Code = serialization::DECL_TYPE_ALIAS_TEMPLATE;
1455 void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) {
1457 Writer.AddStmt(D->getAssertExpr());
1458 Record.push_back(D->isFailed());
1459 Writer.AddStmt(D->getMessage());
1460 Writer.AddSourceLocation(D->getRParenLoc(), Record);
1461 Code = serialization::DECL_STATIC_ASSERT;
1464 /// \brief Emit the DeclContext part of a declaration context decl.
1466 /// \param LexicalOffset the offset at which the DECL_CONTEXT_LEXICAL
1467 /// block for this declaration context is stored. May be 0 to indicate
1468 /// that there are no declarations stored within this context.
1470 /// \param VisibleOffset the offset at which the DECL_CONTEXT_VISIBLE
1471 /// block for this declaration context is stored. May be 0 to indicate
1472 /// that there are no declarations visible from this context. Note
1473 /// that this value will not be emitted for non-primary declaration
1475 void ASTDeclWriter::VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset,
1476 uint64_t VisibleOffset) {
1477 Record.push_back(LexicalOffset);
1478 Record.push_back(VisibleOffset);
1481 /// Determine whether D is the first declaration in its redeclaration chain that
1482 /// is not from an AST file.
1483 template <typename T>
1484 static bool isFirstLocalDecl(Redeclarable<T> *D) {
1485 assert(D && !static_cast<T*>(D)->isFromASTFile());
1487 D = D->getPreviousDecl();
1488 while (D && static_cast<T*>(D)->isFromASTFile());
1492 template <typename T>
1493 void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) {
1494 T *First = D->getFirstDecl();
1495 T *MostRecent = First->getMostRecentDecl();
1496 if (MostRecent != First) {
1497 assert(isRedeclarableDeclKind(static_cast<T *>(D)->getKind()) &&
1498 "Not considered redeclarable?");
1500 Writer.AddDeclRef(First, Record);
1502 // In a modules build, emit a list of all imported key declarations
1503 // (excluding First, if it was imported), so that we can be sure that all
1504 // redeclarations visible to this module are before D in the redecl chain.
1505 unsigned I = Record.size();
1506 Record.push_back(0);
1507 if (Context.getLangOpts().Modules && Writer.Chain) {
1508 if (isFirstLocalDecl(D)) {
1509 Writer.Chain->forEachImportedKeyDecl(First, [&](const Decl *D) {
1511 Writer.AddDeclRef(D, Record);
1513 Record[I] = Record.size() - I - 1;
1515 // Write a redeclaration chain, attached to the first key decl.
1516 Writer.Redeclarations.push_back(Writer.Chain->getKeyDeclaration(First));
1518 } else if (D == First || D->getPreviousDecl()->isFromASTFile()) {
1519 assert(isFirstLocalDecl(D) && "imported decl after local decl");
1521 // Write a redeclaration chain attached to the first decl.
1522 Writer.Redeclarations.push_back(First);
1525 // Make sure that we serialize both the previous and the most-recent
1526 // declarations, which (transitively) ensures that all declarations in the
1527 // chain get serialized.
1529 // FIXME: This is not correct; when we reach an imported declaration we
1530 // won't emit its previous declaration.
1531 (void)Writer.GetDeclRef(D->getPreviousDecl());
1532 (void)Writer.GetDeclRef(MostRecent);
1534 // We use the sentinel value 0 to indicate an only declaration.
1535 Record.push_back(0);
1539 void ASTDeclWriter::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
1540 Record.push_back(D->varlist_size());
1542 for (auto *I : D->varlists())
1544 Code = serialization::DECL_OMP_THREADPRIVATE;
1547 //===----------------------------------------------------------------------===//
1548 // ASTWriter Implementation
1549 //===----------------------------------------------------------------------===//
1551 void ASTWriter::WriteDeclAbbrevs() {
1552 using namespace llvm;
1556 // Abbreviation for DECL_FIELD
1557 Abv = new BitCodeAbbrev();
1558 Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD));
1560 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1561 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1562 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1563 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1564 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1565 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1566 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1567 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1568 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1569 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1570 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1572 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1573 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1574 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1576 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1578 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1579 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1581 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1582 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth
1584 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1585 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1586 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1587 DeclFieldAbbrev = Stream.EmitAbbrev(Abv);
1589 // Abbreviation for DECL_OBJC_IVAR
1590 Abv = new BitCodeAbbrev();
1591 Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR));
1593 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1594 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1595 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1596 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1597 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1598 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1599 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1600 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1601 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
1602 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1603 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1605 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1606 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1607 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1609 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1611 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1612 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1614 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
1615 Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth
1617 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl
1618 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize
1620 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1621 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1622 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1623 DeclObjCIvarAbbrev = Stream.EmitAbbrev(Abv);
1625 // Abbreviation for DECL_ENUM
1626 Abv = new BitCodeAbbrev();
1627 Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM));
1629 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1631 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1632 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1633 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1634 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1635 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1636 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1637 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1638 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1639 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1640 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1641 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1643 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1644 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1645 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1647 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1648 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1650 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1651 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1652 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
1653 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1654 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
1655 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired
1656 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1657 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind
1659 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef
1660 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType
1661 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType
1662 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits
1663 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits
1664 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped
1665 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag
1666 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed
1667 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum
1669 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1670 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1671 DeclEnumAbbrev = Stream.EmitAbbrev(Abv);
1673 // Abbreviation for DECL_RECORD
1674 Abv = new BitCodeAbbrev();
1675 Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD));
1677 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1679 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1680 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1681 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1682 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1683 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1684 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1685 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1686 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1687 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1688 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1689 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1691 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1692 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1693 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1695 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1696 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1698 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
1699 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
1700 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
1701 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
1702 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
1703 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsCompleteDefinitionRequired
1704 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
1705 Abv->Add(BitCodeAbbrevOp(0)); // ExtInfoKind
1707 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember
1708 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion
1709 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember
1710 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasVolatileMember
1712 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
1713 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
1714 DeclRecordAbbrev = Stream.EmitAbbrev(Abv);
1716 // Abbreviation for DECL_PARM_VAR
1717 Abv = new BitCodeAbbrev();
1718 Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR));
1720 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1722 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1723 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // 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(AS_none)); // C++ 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(0)); // StorageClass
1744 Abv->Add(BitCodeAbbrevOp(0)); // getTSCSpec
1745 Abv->Add(BitCodeAbbrevOp(0)); // hasCXXDirectInitializer
1746 Abv->Add(BitCodeAbbrevOp(0)); // Linkage
1747 Abv->Add(BitCodeAbbrevOp(0)); // HasInit
1748 Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo
1750 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter
1751 Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth
1752 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex
1753 Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier
1754 Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted
1755 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg
1756 Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg
1758 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1759 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1760 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1761 DeclParmVarAbbrev = Stream.EmitAbbrev(Abv);
1763 // Abbreviation for DECL_TYPEDEF
1764 Abv = new BitCodeAbbrev();
1765 Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF));
1767 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1769 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1770 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1771 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1772 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1773 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1774 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isUsed
1775 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isReferenced
1776 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1777 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // C++ AccessSpecifier
1778 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1779 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1781 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1782 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1783 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1785 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
1786 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
1788 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1789 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1790 DeclTypedefAbbrev = Stream.EmitAbbrev(Abv);
1792 // Abbreviation for DECL_VAR
1793 Abv = new BitCodeAbbrev();
1794 Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR));
1796 Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
1798 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1799 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1800 Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
1801 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1802 Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
1803 Abv->Add(BitCodeAbbrevOp(0)); // isUsed
1804 Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
1805 Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
1806 Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
1807 Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
1808 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1810 Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
1811 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
1812 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1814 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1816 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
1817 Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
1819 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClass
1820 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // getTSCSpec
1821 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // CXXDirectInitializer
1822 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable
1823 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable
1824 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl
1825 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong
1826 Abv->Add(BitCodeAbbrevOp(0)); // isConstexpr
1827 Abv->Add(BitCodeAbbrevOp(0)); // isInitCapture
1828 Abv->Add(BitCodeAbbrevOp(0)); // isPrevDeclInSameScope
1829 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage
1830 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasInit
1831 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasMemberSpecInfo
1833 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1834 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1835 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
1836 DeclVarAbbrev = Stream.EmitAbbrev(Abv);
1838 // Abbreviation for DECL_CXX_METHOD
1839 Abv = new BitCodeAbbrev();
1840 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CXX_METHOD));
1842 Abv->Add(BitCodeAbbrevOp(0)); // CanonicalDecl
1844 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
1845 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
1846 Abv->Add(BitCodeAbbrevOp(0)); // Invalid
1847 Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
1848 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Implicit
1849 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Used
1850 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Referenced
1851 Abv->Add(BitCodeAbbrevOp(0)); // InObjCContainer
1852 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Access
1853 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ModulePrivate
1854 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
1856 Abv->Add(BitCodeAbbrevOp(DeclarationName::Identifier)); // NameKind
1857 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Identifier
1858 Abv->Add(BitCodeAbbrevOp(0)); // AnonDeclNumber
1860 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1862 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InnerLocStart
1863 Abv->Add(BitCodeAbbrevOp(0)); // HasExtInfo
1865 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 11)); // IDNS
1866 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // StorageClass
1867 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Inline
1868 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InlineSpecified
1869 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // VirtualAsWritten
1870 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Pure
1871 Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedProto
1872 Abv->Add(BitCodeAbbrevOp(1)); // HasWrittenProto
1873 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Deleted
1874 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Trivial
1875 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Defaulted
1876 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ExplicitlyDefaulted
1877 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ImplicitReturnZero
1878 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constexpr
1879 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // SkippedBody
1880 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // LateParsed
1881 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage
1882 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LocEnd
1883 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // TemplateKind
1884 // This Array slurps the rest of the record. Fortunately we want to encode
1885 // (nearly) all the remaining (variable number of) fields in the same way.
1887 // This is the function template information if any, then
1888 // NumParams and Params[] from FunctionDecl, and
1889 // NumOverriddenMethods, OverriddenMethods[] from CXXMethodDecl.
1891 // Add an AbbrevOp for 'size then elements' and use it here.
1892 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
1893 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
1894 DeclCXXMethodAbbrev = Stream.EmitAbbrev(Abv);
1896 // Abbreviation for EXPR_DECL_REF
1897 Abv = new BitCodeAbbrev();
1898 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF));
1901 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1902 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
1903 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
1904 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
1905 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
1906 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
1907 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
1909 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier
1910 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound
1911 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs
1912 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates
1913 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed,
1914 1)); // RefersToEnclosingVariableOrCapture
1915 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef
1916 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1917 DeclRefExprAbbrev = Stream.EmitAbbrev(Abv);
1919 // Abbreviation for EXPR_INTEGER_LITERAL
1920 Abv = new BitCodeAbbrev();
1921 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL));
1924 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1925 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
1926 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
1927 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
1928 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
1929 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
1930 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
1932 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1933 Abv->Add(BitCodeAbbrevOp(32)); // Bit Width
1934 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value
1935 IntegerLiteralAbbrev = Stream.EmitAbbrev(Abv);
1937 // Abbreviation for EXPR_CHARACTER_LITERAL
1938 Abv = new BitCodeAbbrev();
1939 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL));
1942 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1943 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
1944 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
1945 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
1946 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
1947 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
1948 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
1950 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue
1951 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
1952 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // getKind
1953 CharacterLiteralAbbrev = Stream.EmitAbbrev(Abv);
1955 // Abbreviation for EXPR_IMPLICIT_CAST
1956 Abv = new BitCodeAbbrev();
1957 Abv->Add(BitCodeAbbrevOp(serialization::EXPR_IMPLICIT_CAST));
1960 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
1961 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
1962 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
1963 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
1964 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
1965 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
1966 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
1968 Abv->Add(BitCodeAbbrevOp(0)); // PathSize
1969 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 6)); // CastKind
1971 ExprImplicitCastAbbrev = Stream.EmitAbbrev(Abv);
1973 Abv = new BitCodeAbbrev();
1974 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL));
1975 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1976 DeclContextLexicalAbbrev = Stream.EmitAbbrev(Abv);
1978 Abv = new BitCodeAbbrev();
1979 Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE));
1980 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1981 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1982 DeclContextVisibleLookupAbbrev = Stream.EmitAbbrev(Abv);
1985 /// isRequiredDecl - Check if this is a "required" Decl, which must be seen by
1986 /// consumers of the AST.
1988 /// Such decls will always be deserialized from the AST file, so we would like
1989 /// this to be as restrictive as possible. Currently the predicate is driven by
1990 /// code generation requirements, if other clients have a different notion of
1991 /// what is "required" then we may have to consider an alternate scheme where
1992 /// clients can iterate over the top-level decls and get information on them,
1993 /// without necessary deserializing them. We could explicitly require such
1994 /// clients to use a separate API call to "realize" the decl. This should be
1995 /// relatively painless since they would presumably only do it for top-level
1997 static bool isRequiredDecl(const Decl *D, ASTContext &Context) {
1998 // An ObjCMethodDecl is never considered as "required" because its
1999 // implementation container always is.
2001 // File scoped assembly or obj-c implementation must be seen. ImportDecl is
2002 // used by codegen to determine the set of imported modules to search for
2003 // inputs for automatic linking.
2004 if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D) || isa<ImportDecl>(D))
2007 return Context.DeclMustBeEmitted(D);
2010 void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) {
2011 // Switch case IDs are per Decl.
2012 ClearSwitchCaseIDs();
2015 ASTDeclWriter W(*this, Context, Record);
2017 // Determine the ID for this declaration.
2018 serialization::DeclID ID;
2019 if (D->isFromASTFile()) {
2020 assert(isRewritten(D) && "should not be emitting imported decl");
2023 serialization::DeclID &IDR = DeclIDs[D];
2030 bool isReplacingADecl = ID < FirstDeclID;
2032 // If this declaration is also a DeclContext, write blocks for the
2033 // declarations that lexically stored inside its context and those
2034 // declarations that are visible from its context. These blocks
2035 // are written before the declaration itself so that we can put
2036 // their offsets into the record for the declaration.
2037 uint64_t LexicalOffset = 0;
2038 uint64_t VisibleOffset = 0;
2039 DeclContext *DC = dyn_cast<DeclContext>(D);
2041 if (isReplacingADecl) {
2042 // It is replacing a decl from a chained PCH; make sure that the
2043 // DeclContext is fully loaded.
2044 if (DC->hasExternalLexicalStorage())
2045 DC->LoadLexicalDeclsFromExternalStorage();
2046 if (DC->hasExternalVisibleStorage())
2047 Chain->completeVisibleDeclsMap(DC);
2049 LexicalOffset = WriteDeclContextLexicalBlock(Context, DC);
2050 VisibleOffset = WriteDeclContextVisibleBlock(Context, DC);
2053 if (isReplacingADecl) {
2054 // We're replacing a decl in a previous file.
2055 ReplacedDecls.push_back(ReplacedDeclInfo(ID, Stream.GetCurrentBitNo(),
2058 unsigned Index = ID - FirstDeclID;
2060 // Record the offset for this declaration
2061 SourceLocation Loc = D->getLocation();
2062 if (DeclOffsets.size() == Index)
2063 DeclOffsets.push_back(DeclOffset(Loc, Stream.GetCurrentBitNo()));
2064 else if (DeclOffsets.size() < Index) {
2065 DeclOffsets.resize(Index+1);
2066 DeclOffsets[Index].setLocation(Loc);
2067 DeclOffsets[Index].BitOffset = Stream.GetCurrentBitNo();
2070 SourceManager &SM = Context.getSourceManager();
2071 if (Loc.isValid() && SM.isLocalSourceLocation(Loc))
2072 associateDeclWithFile(D, ID);
2075 // Build and emit a record for this declaration
2077 W.Code = (serialization::DeclCode)0;
2080 if (DC) W.VisitDeclContext(DC, LexicalOffset, VisibleOffset);
2083 llvm::report_fatal_error(StringRef("unexpected declaration kind '") +
2084 D->getDeclKindName() + "'");
2085 Stream.EmitRecord(W.Code, Record, W.AbbrevToUse);
2087 // Flush any expressions, base specifiers, and ctor initializers that
2088 // were written as part of this declaration.
2089 FlushPendingAfterDecl();
2091 // Note declarations that should be deserialized eagerly so that we can add
2092 // them to a record in the AST file later.
2093 if (isRequiredDecl(D, Context))
2094 EagerlyDeserializedDecls.push_back(ID);
2097 void ASTWriter::AddFunctionDefinition(const FunctionDecl *FD,
2098 RecordData &Record) {
2099 ClearSwitchCaseIDs();
2101 ASTDeclWriter W(*this, FD->getASTContext(), Record);
2102 W.AddFunctionDefinition(FD);