| //===--- ASTReaderDecl.cpp - Decl Deserialization ---------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements the ASTReader::ReadDeclRecord method, which is the |
| // entrypoint for loading a decl. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "clang/Serialization/ASTReader.h" |
| #include "ASTCommon.h" |
| #include "ASTReaderInternals.h" |
| #include "clang/AST/ASTConsumer.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/AST/DeclCXX.h" |
| #include "clang/AST/DeclGroup.h" |
| #include "clang/AST/DeclTemplate.h" |
| #include "clang/AST/DeclVisitor.h" |
| #include "clang/AST/Expr.h" |
| #include "clang/Sema/IdentifierResolver.h" |
| #include "clang/Sema/Sema.h" |
| #include "clang/Sema/SemaDiagnostic.h" |
| #include "llvm/Support/SaveAndRestore.h" |
| using namespace clang; |
| using namespace clang::serialization; |
| |
| //===----------------------------------------------------------------------===// |
| // Declaration deserialization |
| //===----------------------------------------------------------------------===// |
| |
| namespace clang { |
| class ASTDeclReader : public DeclVisitor<ASTDeclReader, void> { |
| ASTReader &Reader; |
| ModuleFile &F; |
| const DeclID ThisDeclID; |
| const unsigned RawLocation; |
| typedef ASTReader::RecordData RecordData; |
| const RecordData &Record; |
| unsigned &Idx; |
| TypeID TypeIDForTypeDecl; |
| |
| bool HasPendingBody; |
| |
| uint64_t GetCurrentCursorOffset(); |
| |
| SourceLocation ReadSourceLocation(const RecordData &R, unsigned &I) { |
| return Reader.ReadSourceLocation(F, R, I); |
| } |
| |
| SourceRange ReadSourceRange(const RecordData &R, unsigned &I) { |
| return Reader.ReadSourceRange(F, R, I); |
| } |
| |
| TypeSourceInfo *GetTypeSourceInfo(const RecordData &R, unsigned &I) { |
| return Reader.GetTypeSourceInfo(F, R, I); |
| } |
| |
| serialization::DeclID ReadDeclID(const RecordData &R, unsigned &I) { |
| return Reader.ReadDeclID(F, R, I); |
| } |
| |
| Decl *ReadDecl(const RecordData &R, unsigned &I) { |
| return Reader.ReadDecl(F, R, I); |
| } |
| |
| template<typename T> |
| T *ReadDeclAs(const RecordData &R, unsigned &I) { |
| return Reader.ReadDeclAs<T>(F, R, I); |
| } |
| |
| void ReadQualifierInfo(QualifierInfo &Info, |
| const RecordData &R, unsigned &I) { |
| Reader.ReadQualifierInfo(F, Info, R, I); |
| } |
| |
| void ReadDeclarationNameLoc(DeclarationNameLoc &DNLoc, DeclarationName Name, |
| const RecordData &R, unsigned &I) { |
| Reader.ReadDeclarationNameLoc(F, DNLoc, Name, R, I); |
| } |
| |
| void ReadDeclarationNameInfo(DeclarationNameInfo &NameInfo, |
| const RecordData &R, unsigned &I) { |
| Reader.ReadDeclarationNameInfo(F, NameInfo, R, I); |
| } |
| |
| serialization::SubmoduleID readSubmoduleID(const RecordData &R, |
| unsigned &I) { |
| if (I >= R.size()) |
| return 0; |
| |
| return Reader.getGlobalSubmoduleID(F, R[I++]); |
| } |
| |
| Module *readModule(const RecordData &R, unsigned &I) { |
| return Reader.getSubmodule(readSubmoduleID(R, I)); |
| } |
| |
| void ReadCXXDefinitionData(struct CXXRecordDecl::DefinitionData &Data, |
| const RecordData &R, unsigned &I); |
| |
| /// \brief RAII class used to capture the first ID within a redeclaration |
| /// chain and to introduce it into the list of pending redeclaration chains |
| /// on destruction. |
| /// |
| /// The caller can choose not to introduce this ID into the redeclaration |
| /// chain by calling \c suppress(). |
| class RedeclarableResult { |
| ASTReader &Reader; |
| GlobalDeclID FirstID; |
| mutable bool Owning; |
| Decl::Kind DeclKind; |
| |
| void operator=(RedeclarableResult &) LLVM_DELETED_FUNCTION; |
| |
| public: |
| RedeclarableResult(ASTReader &Reader, GlobalDeclID FirstID, |
| Decl::Kind DeclKind) |
| : Reader(Reader), FirstID(FirstID), Owning(true), DeclKind(DeclKind) { } |
| |
| RedeclarableResult(const RedeclarableResult &Other) |
| : Reader(Other.Reader), FirstID(Other.FirstID), Owning(Other.Owning) , |
| DeclKind(Other.DeclKind) |
| { |
| Other.Owning = false; |
| } |
| |
| ~RedeclarableResult() { |
| if (FirstID && Owning && isRedeclarableDeclKind(DeclKind) && |
| Reader.PendingDeclChainsKnown.insert(FirstID)) |
| Reader.PendingDeclChains.push_back(FirstID); |
| } |
| |
| /// \brief Retrieve the first ID. |
| GlobalDeclID getFirstID() const { return FirstID; } |
| |
| /// \brief Do not introduce this declaration ID into the set of pending |
| /// declaration chains. |
| void suppress() { |
| Owning = false; |
| } |
| }; |
| |
| /// \brief Class used to capture the result of searching for an existing |
| /// declaration of a specific kind and name, along with the ability |
| /// to update the place where this result was found (the declaration |
| /// chain hanging off an identifier or the DeclContext we searched in) |
| /// if requested. |
| class FindExistingResult { |
| ASTReader &Reader; |
| NamedDecl *New; |
| NamedDecl *Existing; |
| mutable bool AddResult; |
| |
| void operator=(FindExistingResult&) LLVM_DELETED_FUNCTION; |
| |
| public: |
| FindExistingResult(ASTReader &Reader) |
| : Reader(Reader), New(0), Existing(0), AddResult(false) { } |
| |
| FindExistingResult(ASTReader &Reader, NamedDecl *New, NamedDecl *Existing) |
| : Reader(Reader), New(New), Existing(Existing), AddResult(true) { } |
| |
| FindExistingResult(const FindExistingResult &Other) |
| : Reader(Other.Reader), New(Other.New), Existing(Other.Existing), |
| AddResult(Other.AddResult) |
| { |
| Other.AddResult = false; |
| } |
| |
| ~FindExistingResult(); |
| |
| /// \brief Suppress the addition of this result into the known set of |
| /// names. |
| void suppress() { AddResult = false; } |
| |
| operator NamedDecl*() const { return Existing; } |
| |
| template<typename T> |
| operator T*() const { return dyn_cast_or_null<T>(Existing); } |
| }; |
| |
| FindExistingResult findExisting(NamedDecl *D); |
| |
| public: |
| ASTDeclReader(ASTReader &Reader, ModuleFile &F, |
| DeclID thisDeclID, |
| unsigned RawLocation, |
| const RecordData &Record, unsigned &Idx) |
| : Reader(Reader), F(F), ThisDeclID(thisDeclID), |
| RawLocation(RawLocation), Record(Record), Idx(Idx), |
| TypeIDForTypeDecl(0), HasPendingBody(false) { } |
| |
| static void attachPreviousDecl(Decl *D, Decl *previous); |
| static void attachLatestDecl(Decl *D, Decl *latest); |
| |
| /// \brief Determine whether this declaration has a pending body. |
| bool hasPendingBody() const { return HasPendingBody; } |
| |
| void Visit(Decl *D); |
| |
| void UpdateDecl(Decl *D, ModuleFile &ModuleFile, |
| const RecordData &Record); |
| |
| static void setNextObjCCategory(ObjCCategoryDecl *Cat, |
| ObjCCategoryDecl *Next) { |
| Cat->NextClassCategory = Next; |
| } |
| |
| void VisitDecl(Decl *D); |
| void VisitTranslationUnitDecl(TranslationUnitDecl *TU); |
| void VisitNamedDecl(NamedDecl *ND); |
| void VisitLabelDecl(LabelDecl *LD); |
| void VisitNamespaceDecl(NamespaceDecl *D); |
| void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); |
| void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); |
| void VisitTypeDecl(TypeDecl *TD); |
| void VisitTypedefNameDecl(TypedefNameDecl *TD); |
| void VisitTypedefDecl(TypedefDecl *TD); |
| void VisitTypeAliasDecl(TypeAliasDecl *TD); |
| void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); |
| RedeclarableResult VisitTagDecl(TagDecl *TD); |
| void VisitEnumDecl(EnumDecl *ED); |
| RedeclarableResult VisitRecordDeclImpl(RecordDecl *RD); |
| void VisitRecordDecl(RecordDecl *RD) { VisitRecordDeclImpl(RD); } |
| RedeclarableResult VisitCXXRecordDeclImpl(CXXRecordDecl *D); |
| void VisitCXXRecordDecl(CXXRecordDecl *D) { VisitCXXRecordDeclImpl(D); } |
| RedeclarableResult VisitClassTemplateSpecializationDeclImpl( |
| ClassTemplateSpecializationDecl *D); |
| void VisitClassTemplateSpecializationDecl( |
| ClassTemplateSpecializationDecl *D) { |
| VisitClassTemplateSpecializationDeclImpl(D); |
| } |
| void VisitClassTemplatePartialSpecializationDecl( |
| ClassTemplatePartialSpecializationDecl *D); |
| void VisitClassScopeFunctionSpecializationDecl( |
| ClassScopeFunctionSpecializationDecl *D); |
| RedeclarableResult |
| VisitVarTemplateSpecializationDeclImpl(VarTemplateSpecializationDecl *D); |
| void VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D) { |
| VisitVarTemplateSpecializationDeclImpl(D); |
| } |
| void VisitVarTemplatePartialSpecializationDecl( |
| VarTemplatePartialSpecializationDecl *D); |
| void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D); |
| void VisitValueDecl(ValueDecl *VD); |
| void VisitEnumConstantDecl(EnumConstantDecl *ECD); |
| void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); |
| void VisitDeclaratorDecl(DeclaratorDecl *DD); |
| void VisitFunctionDecl(FunctionDecl *FD); |
| void VisitCXXMethodDecl(CXXMethodDecl *D); |
| void VisitCXXConstructorDecl(CXXConstructorDecl *D); |
| void VisitCXXDestructorDecl(CXXDestructorDecl *D); |
| void VisitCXXConversionDecl(CXXConversionDecl *D); |
| void VisitFieldDecl(FieldDecl *FD); |
| void VisitMSPropertyDecl(MSPropertyDecl *FD); |
| void VisitIndirectFieldDecl(IndirectFieldDecl *FD); |
| RedeclarableResult VisitVarDeclImpl(VarDecl *D); |
| void VisitVarDecl(VarDecl *VD) { VisitVarDeclImpl(VD); } |
| void VisitImplicitParamDecl(ImplicitParamDecl *PD); |
| void VisitParmVarDecl(ParmVarDecl *PD); |
| void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D); |
| void VisitTemplateDecl(TemplateDecl *D); |
| RedeclarableResult VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D); |
| void VisitClassTemplateDecl(ClassTemplateDecl *D); |
| void VisitVarTemplateDecl(VarTemplateDecl *D); |
| void VisitFunctionTemplateDecl(FunctionTemplateDecl *D); |
| void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D); |
| void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D); |
| void VisitUsingDecl(UsingDecl *D); |
| void VisitUsingShadowDecl(UsingShadowDecl *D); |
| void VisitLinkageSpecDecl(LinkageSpecDecl *D); |
| void VisitFileScopeAsmDecl(FileScopeAsmDecl *AD); |
| void VisitImportDecl(ImportDecl *D); |
| void VisitAccessSpecDecl(AccessSpecDecl *D); |
| void VisitFriendDecl(FriendDecl *D); |
| void VisitFriendTemplateDecl(FriendTemplateDecl *D); |
| void VisitStaticAssertDecl(StaticAssertDecl *D); |
| void VisitBlockDecl(BlockDecl *BD); |
| void VisitCapturedDecl(CapturedDecl *CD); |
| void VisitEmptyDecl(EmptyDecl *D); |
| |
| std::pair<uint64_t, uint64_t> VisitDeclContext(DeclContext *DC); |
| |
| template<typename T> |
| RedeclarableResult VisitRedeclarable(Redeclarable<T> *D); |
| |
| template<typename T> |
| void mergeRedeclarable(Redeclarable<T> *D, RedeclarableResult &Redecl); |
| |
| template<typename T> |
| void mergeRedeclarable(Redeclarable<T> *D, T *Existing, |
| RedeclarableResult &Redecl); |
| |
| template<typename T> |
| void mergeMergeable(Mergeable<T> *D); |
| |
| // FIXME: Reorder according to DeclNodes.td? |
| void VisitObjCMethodDecl(ObjCMethodDecl *D); |
| void VisitObjCContainerDecl(ObjCContainerDecl *D); |
| void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); |
| void VisitObjCIvarDecl(ObjCIvarDecl *D); |
| void VisitObjCProtocolDecl(ObjCProtocolDecl *D); |
| void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D); |
| void VisitObjCCategoryDecl(ObjCCategoryDecl *D); |
| void VisitObjCImplDecl(ObjCImplDecl *D); |
| void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); |
| void VisitObjCImplementationDecl(ObjCImplementationDecl *D); |
| void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D); |
| void VisitObjCPropertyDecl(ObjCPropertyDecl *D); |
| void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); |
| void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D); |
| }; |
| } |
| |
| uint64_t ASTDeclReader::GetCurrentCursorOffset() { |
| return F.DeclsCursor.GetCurrentBitNo() + F.GlobalBitOffset; |
| } |
| |
| void ASTDeclReader::Visit(Decl *D) { |
| DeclVisitor<ASTDeclReader, void>::Visit(D); |
| |
| if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)) { |
| if (DD->DeclInfo) { |
| DeclaratorDecl::ExtInfo *Info = |
| DD->DeclInfo.get<DeclaratorDecl::ExtInfo *>(); |
| Info->TInfo = |
| GetTypeSourceInfo(Record, Idx); |
| } |
| else { |
| DD->DeclInfo = GetTypeSourceInfo(Record, Idx); |
| } |
| } |
| |
| if (TypeDecl *TD = dyn_cast<TypeDecl>(D)) { |
| // if we have a fully initialized TypeDecl, we can safely read its type now. |
| TD->setTypeForDecl(Reader.GetType(TypeIDForTypeDecl).getTypePtrOrNull()); |
| } else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) { |
| // if we have a fully initialized TypeDecl, we can safely read its type now. |
| ID->TypeForDecl = Reader.GetType(TypeIDForTypeDecl).getTypePtrOrNull(); |
| } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
| // FunctionDecl's body was written last after all other Stmts/Exprs. |
| // We only read it if FD doesn't already have a body (e.g., from another |
| // module). |
| // FIXME: Also consider = default and = delete. |
| // FIXME: Can we diagnose ODR violations somehow? |
| if (Record[Idx++]) { |
| Reader.PendingBodies[FD] = GetCurrentCursorOffset(); |
| HasPendingBody = true; |
| } |
| } |
| } |
| |
| void ASTDeclReader::VisitDecl(Decl *D) { |
| if (D->isTemplateParameter()) { |
| // We don't want to deserialize the DeclContext of a template |
| // parameter immediately, because the template parameter might be |
| // used in the formulation of its DeclContext. Use the translation |
| // unit DeclContext as a placeholder. |
| GlobalDeclID SemaDCIDForTemplateParmDecl = ReadDeclID(Record, Idx); |
| GlobalDeclID LexicalDCIDForTemplateParmDecl = ReadDeclID(Record, Idx); |
| Reader.addPendingDeclContextInfo(D, |
| SemaDCIDForTemplateParmDecl, |
| LexicalDCIDForTemplateParmDecl); |
| D->setDeclContext(Reader.getContext().getTranslationUnitDecl()); |
| } else { |
| DeclContext *SemaDC = ReadDeclAs<DeclContext>(Record, Idx); |
| DeclContext *LexicalDC = ReadDeclAs<DeclContext>(Record, Idx); |
| DeclContext *MergedSemaDC = Reader.MergedDeclContexts.lookup(SemaDC); |
| // Avoid calling setLexicalDeclContext() directly because it uses |
| // Decl::getASTContext() internally which is unsafe during derialization. |
| D->setDeclContextsImpl(MergedSemaDC ? MergedSemaDC : SemaDC, LexicalDC, |
| Reader.getContext()); |
| } |
| D->setLocation(Reader.ReadSourceLocation(F, RawLocation)); |
| D->setInvalidDecl(Record[Idx++]); |
| if (Record[Idx++]) { // hasAttrs |
| AttrVec Attrs; |
| Reader.ReadAttributes(F, Attrs, Record, Idx); |
| // Avoid calling setAttrs() directly because it uses Decl::getASTContext() |
| // internally which is unsafe during derialization. |
| D->setAttrsImpl(Attrs, Reader.getContext()); |
| } |
| D->setImplicit(Record[Idx++]); |
| D->setIsUsed(Record[Idx++]); |
| D->setReferenced(Record[Idx++]); |
| D->setTopLevelDeclInObjCContainer(Record[Idx++]); |
| D->setAccess((AccessSpecifier)Record[Idx++]); |
| D->FromASTFile = true; |
| D->setModulePrivate(Record[Idx++]); |
| D->Hidden = D->isModulePrivate(); |
| |
| // Determine whether this declaration is part of a (sub)module. If so, it |
| // may not yet be visible. |
| if (unsigned SubmoduleID = readSubmoduleID(Record, Idx)) { |
| // Store the owning submodule ID in the declaration. |
| D->setOwningModuleID(SubmoduleID); |
| |
| // Module-private declarations are never visible, so there is no work to do. |
| if (!D->isModulePrivate()) { |
| if (Module *Owner = Reader.getSubmodule(SubmoduleID)) { |
| if (Owner->NameVisibility != Module::AllVisible) { |
| // The owning module is not visible. Mark this declaration as hidden. |
| D->Hidden = true; |
| |
| // Note that this declaration was hidden because its owning module is |
| // not yet visible. |
| Reader.HiddenNamesMap[Owner].push_back(D); |
| } |
| } |
| } |
| } |
| } |
| |
| void ASTDeclReader::VisitTranslationUnitDecl(TranslationUnitDecl *TU) { |
| llvm_unreachable("Translation units are not serialized"); |
| } |
| |
| void ASTDeclReader::VisitNamedDecl(NamedDecl *ND) { |
| VisitDecl(ND); |
| ND->setDeclName(Reader.ReadDeclarationName(F, Record, Idx)); |
| } |
| |
| void ASTDeclReader::VisitTypeDecl(TypeDecl *TD) { |
| VisitNamedDecl(TD); |
| TD->setLocStart(ReadSourceLocation(Record, Idx)); |
| // Delay type reading until after we have fully initialized the decl. |
| TypeIDForTypeDecl = Reader.getGlobalTypeID(F, Record[Idx++]); |
| } |
| |
| void ASTDeclReader::VisitTypedefNameDecl(TypedefNameDecl *TD) { |
| RedeclarableResult Redecl = VisitRedeclarable(TD); |
| VisitTypeDecl(TD); |
| TypeSourceInfo *TInfo = GetTypeSourceInfo(Record, Idx); |
| if (Record[Idx++]) { // isModed |
| QualType modedT = Reader.readType(F, Record, Idx); |
| TD->setModedTypeSourceInfo(TInfo, modedT); |
| } else |
| TD->setTypeSourceInfo(TInfo); |
| mergeRedeclarable(TD, Redecl); |
| } |
| |
| void ASTDeclReader::VisitTypedefDecl(TypedefDecl *TD) { |
| VisitTypedefNameDecl(TD); |
| } |
| |
| void ASTDeclReader::VisitTypeAliasDecl(TypeAliasDecl *TD) { |
| VisitTypedefNameDecl(TD); |
| } |
| |
| ASTDeclReader::RedeclarableResult ASTDeclReader::VisitTagDecl(TagDecl *TD) { |
| RedeclarableResult Redecl = VisitRedeclarable(TD); |
| VisitTypeDecl(TD); |
| |
| TD->IdentifierNamespace = Record[Idx++]; |
| TD->setTagKind((TagDecl::TagKind)Record[Idx++]); |
| TD->setCompleteDefinition(Record[Idx++]); |
| TD->setEmbeddedInDeclarator(Record[Idx++]); |
| TD->setFreeStanding(Record[Idx++]); |
| TD->setCompleteDefinitionRequired(Record[Idx++]); |
| TD->setRBraceLoc(ReadSourceLocation(Record, Idx)); |
| |
| if (Record[Idx++]) { // hasExtInfo |
| TagDecl::ExtInfo *Info = new (Reader.getContext()) TagDecl::ExtInfo(); |
| ReadQualifierInfo(*Info, Record, Idx); |
| TD->NamedDeclOrQualifier = Info; |
| } else |
| TD->NamedDeclOrQualifier = ReadDeclAs<NamedDecl>(Record, Idx); |
| |
| mergeRedeclarable(TD, Redecl); |
| return Redecl; |
| } |
| |
| void ASTDeclReader::VisitEnumDecl(EnumDecl *ED) { |
| VisitTagDecl(ED); |
| if (TypeSourceInfo *TI = Reader.GetTypeSourceInfo(F, Record, Idx)) |
| ED->setIntegerTypeSourceInfo(TI); |
| else |
| ED->setIntegerType(Reader.readType(F, Record, Idx)); |
| ED->setPromotionType(Reader.readType(F, Record, Idx)); |
| ED->setNumPositiveBits(Record[Idx++]); |
| ED->setNumNegativeBits(Record[Idx++]); |
| ED->IsScoped = Record[Idx++]; |
| ED->IsScopedUsingClassTag = Record[Idx++]; |
| ED->IsFixed = Record[Idx++]; |
| |
| // If this is a definition subject to the ODR, and we already have a |
| // definition, merge this one into it. |
| if (ED->IsCompleteDefinition && |
| Reader.getContext().getLangOpts().Modules && |
| Reader.getContext().getLangOpts().CPlusPlus) { |
| if (EnumDecl *&OldDef = Reader.EnumDefinitions[ED->getCanonicalDecl()]) { |
| Reader.MergedDeclContexts.insert(std::make_pair(ED, OldDef)); |
| ED->IsCompleteDefinition = false; |
| } else { |
| OldDef = ED; |
| } |
| } |
| |
| if (EnumDecl *InstED = ReadDeclAs<EnumDecl>(Record, Idx)) { |
| TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++]; |
| SourceLocation POI = ReadSourceLocation(Record, Idx); |
| ED->setInstantiationOfMemberEnum(Reader.getContext(), InstED, TSK); |
| ED->getMemberSpecializationInfo()->setPointOfInstantiation(POI); |
| } |
| } |
| |
| ASTDeclReader::RedeclarableResult |
| ASTDeclReader::VisitRecordDeclImpl(RecordDecl *RD) { |
| RedeclarableResult Redecl = VisitTagDecl(RD); |
| RD->setHasFlexibleArrayMember(Record[Idx++]); |
| RD->setAnonymousStructOrUnion(Record[Idx++]); |
| RD->setHasObjectMember(Record[Idx++]); |
| RD->setHasVolatileMember(Record[Idx++]); |
| return Redecl; |
| } |
| |
| void ASTDeclReader::VisitValueDecl(ValueDecl *VD) { |
| VisitNamedDecl(VD); |
| VD->setType(Reader.readType(F, Record, Idx)); |
| } |
| |
| void ASTDeclReader::VisitEnumConstantDecl(EnumConstantDecl *ECD) { |
| VisitValueDecl(ECD); |
| if (Record[Idx++]) |
| ECD->setInitExpr(Reader.ReadExpr(F)); |
| ECD->setInitVal(Reader.ReadAPSInt(Record, Idx)); |
| mergeMergeable(ECD); |
| } |
| |
| void ASTDeclReader::VisitDeclaratorDecl(DeclaratorDecl *DD) { |
| VisitValueDecl(DD); |
| DD->setInnerLocStart(ReadSourceLocation(Record, Idx)); |
| if (Record[Idx++]) { // hasExtInfo |
| DeclaratorDecl::ExtInfo *Info |
| = new (Reader.getContext()) DeclaratorDecl::ExtInfo(); |
| ReadQualifierInfo(*Info, Record, Idx); |
| DD->DeclInfo = Info; |
| } |
| } |
| |
| void ASTDeclReader::VisitFunctionDecl(FunctionDecl *FD) { |
| RedeclarableResult Redecl = VisitRedeclarable(FD); |
| VisitDeclaratorDecl(FD); |
| |
| ReadDeclarationNameLoc(FD->DNLoc, FD->getDeclName(), Record, Idx); |
| FD->IdentifierNamespace = Record[Idx++]; |
| |
| // FunctionDecl's body is handled last at ASTDeclReader::Visit, |
| // after everything else is read. |
| |
| FD->SClass = (StorageClass)Record[Idx++]; |
| FD->IsInline = Record[Idx++]; |
| FD->IsInlineSpecified = Record[Idx++]; |
| FD->IsVirtualAsWritten = Record[Idx++]; |
| FD->IsPure = Record[Idx++]; |
| FD->HasInheritedPrototype = Record[Idx++]; |
| FD->HasWrittenPrototype = Record[Idx++]; |
| FD->IsDeleted = Record[Idx++]; |
| FD->IsTrivial = Record[Idx++]; |
| FD->IsDefaulted = Record[Idx++]; |
| FD->IsExplicitlyDefaulted = Record[Idx++]; |
| FD->HasImplicitReturnZero = Record[Idx++]; |
| FD->IsConstexpr = Record[Idx++]; |
| FD->HasSkippedBody = Record[Idx++]; |
| FD->IsLateTemplateParsed = Record[Idx++]; |
| FD->setCachedLinkage(Linkage(Record[Idx++])); |
| FD->EndRangeLoc = ReadSourceLocation(Record, Idx); |
| |
| switch ((FunctionDecl::TemplatedKind)Record[Idx++]) { |
| case FunctionDecl::TK_NonTemplate: |
| mergeRedeclarable(FD, Redecl); |
| break; |
| case FunctionDecl::TK_FunctionTemplate: |
| FD->setDescribedFunctionTemplate(ReadDeclAs<FunctionTemplateDecl>(Record, |
| Idx)); |
| break; |
| case FunctionDecl::TK_MemberSpecialization: { |
| FunctionDecl *InstFD = ReadDeclAs<FunctionDecl>(Record, Idx); |
| TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++]; |
| SourceLocation POI = ReadSourceLocation(Record, Idx); |
| FD->setInstantiationOfMemberFunction(Reader.getContext(), InstFD, TSK); |
| FD->getMemberSpecializationInfo()->setPointOfInstantiation(POI); |
| break; |
| } |
| case FunctionDecl::TK_FunctionTemplateSpecialization: { |
| FunctionTemplateDecl *Template = ReadDeclAs<FunctionTemplateDecl>(Record, |
| Idx); |
| TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++]; |
| |
| // Template arguments. |
| SmallVector<TemplateArgument, 8> TemplArgs; |
| Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx); |
| |
| // Template args as written. |
| SmallVector<TemplateArgumentLoc, 8> TemplArgLocs; |
| SourceLocation LAngleLoc, RAngleLoc; |
| bool HasTemplateArgumentsAsWritten = Record[Idx++]; |
| if (HasTemplateArgumentsAsWritten) { |
| unsigned NumTemplateArgLocs = Record[Idx++]; |
| TemplArgLocs.reserve(NumTemplateArgLocs); |
| for (unsigned i=0; i != NumTemplateArgLocs; ++i) |
| TemplArgLocs.push_back( |
| Reader.ReadTemplateArgumentLoc(F, Record, Idx)); |
| |
| LAngleLoc = ReadSourceLocation(Record, Idx); |
| RAngleLoc = ReadSourceLocation(Record, Idx); |
| } |
| |
| SourceLocation POI = ReadSourceLocation(Record, Idx); |
| |
| ASTContext &C = Reader.getContext(); |
| TemplateArgumentList *TemplArgList |
| = TemplateArgumentList::CreateCopy(C, TemplArgs.data(), TemplArgs.size()); |
| TemplateArgumentListInfo TemplArgsInfo(LAngleLoc, RAngleLoc); |
| for (unsigned i=0, e = TemplArgLocs.size(); i != e; ++i) |
| TemplArgsInfo.addArgument(TemplArgLocs[i]); |
| FunctionTemplateSpecializationInfo *FTInfo |
| = FunctionTemplateSpecializationInfo::Create(C, FD, Template, TSK, |
| TemplArgList, |
| HasTemplateArgumentsAsWritten ? &TemplArgsInfo : 0, |
| POI); |
| FD->TemplateOrSpecialization = FTInfo; |
| |
| if (FD->isCanonicalDecl()) { // if canonical add to template's set. |
| // The template that contains the specializations set. It's not safe to |
| // use getCanonicalDecl on Template since it may still be initializing. |
| FunctionTemplateDecl *CanonTemplate |
| = ReadDeclAs<FunctionTemplateDecl>(Record, Idx); |
| // Get the InsertPos by FindNodeOrInsertPos() instead of calling |
| // InsertNode(FTInfo) directly to avoid the getASTContext() call in |
| // FunctionTemplateSpecializationInfo's Profile(). |
| // We avoid getASTContext because a decl in the parent hierarchy may |
| // be initializing. |
| llvm::FoldingSetNodeID ID; |
| FunctionTemplateSpecializationInfo::Profile(ID, TemplArgs.data(), |
| TemplArgs.size(), C); |
| void *InsertPos = 0; |
| FunctionTemplateDecl::Common *CommonPtr = CanonTemplate->getCommonPtr(); |
| CommonPtr->Specializations.FindNodeOrInsertPos(ID, InsertPos); |
| if (InsertPos) |
| CommonPtr->Specializations.InsertNode(FTInfo, InsertPos); |
| else { |
| assert(Reader.getContext().getLangOpts().Modules && |
| "already deserialized this template specialization"); |
| // FIXME: This specialization is a redeclaration of one from another |
| // module. Merge it. |
| } |
| } |
| break; |
| } |
| case FunctionDecl::TK_DependentFunctionTemplateSpecialization: { |
| // Templates. |
| UnresolvedSet<8> TemplDecls; |
| unsigned NumTemplates = Record[Idx++]; |
| while (NumTemplates--) |
| TemplDecls.addDecl(ReadDeclAs<NamedDecl>(Record, Idx)); |
| |
| // Templates args. |
| TemplateArgumentListInfo TemplArgs; |
| unsigned NumArgs = Record[Idx++]; |
| while (NumArgs--) |
| TemplArgs.addArgument(Reader.ReadTemplateArgumentLoc(F, Record, Idx)); |
| TemplArgs.setLAngleLoc(ReadSourceLocation(Record, Idx)); |
| TemplArgs.setRAngleLoc(ReadSourceLocation(Record, Idx)); |
| |
| FD->setDependentTemplateSpecialization(Reader.getContext(), |
| TemplDecls, TemplArgs); |
| break; |
| } |
| } |
| |
| // Read in the parameters. |
| unsigned NumParams = Record[Idx++]; |
| SmallVector<ParmVarDecl *, 16> Params; |
| Params.reserve(NumParams); |
| for (unsigned I = 0; I != NumParams; ++I) |
| Params.push_back(ReadDeclAs<ParmVarDecl>(Record, Idx)); |
| FD->setParams(Reader.getContext(), Params); |
| } |
| |
| void ASTDeclReader::VisitObjCMethodDecl(ObjCMethodDecl *MD) { |
| VisitNamedDecl(MD); |
| if (Record[Idx++]) { |
| // Load the body on-demand. Most clients won't care, because method |
| // definitions rarely show up in headers. |
| Reader.PendingBodies[MD] = GetCurrentCursorOffset(); |
| HasPendingBody = true; |
| MD->setSelfDecl(ReadDeclAs<ImplicitParamDecl>(Record, Idx)); |
| MD->setCmdDecl(ReadDeclAs<ImplicitParamDecl>(Record, Idx)); |
| } |
| MD->setInstanceMethod(Record[Idx++]); |
| MD->setVariadic(Record[Idx++]); |
| MD->setPropertyAccessor(Record[Idx++]); |
| MD->setDefined(Record[Idx++]); |
| MD->IsOverriding = Record[Idx++]; |
| MD->HasSkippedBody = Record[Idx++]; |
| |
| MD->IsRedeclaration = Record[Idx++]; |
| MD->HasRedeclaration = Record[Idx++]; |
| if (MD->HasRedeclaration) |
| Reader.getContext().setObjCMethodRedeclaration(MD, |
| ReadDeclAs<ObjCMethodDecl>(Record, Idx)); |
| |
| MD->setDeclImplementation((ObjCMethodDecl::ImplementationControl)Record[Idx++]); |
| MD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]); |
| MD->SetRelatedResultType(Record[Idx++]); |
| MD->setResultType(Reader.readType(F, Record, Idx)); |
| MD->setResultTypeSourceInfo(GetTypeSourceInfo(Record, Idx)); |
| MD->DeclEndLoc = ReadSourceLocation(Record, Idx); |
| unsigned NumParams = Record[Idx++]; |
| SmallVector<ParmVarDecl *, 16> Params; |
| Params.reserve(NumParams); |
| for (unsigned I = 0; I != NumParams; ++I) |
| Params.push_back(ReadDeclAs<ParmVarDecl>(Record, Idx)); |
| |
| MD->SelLocsKind = Record[Idx++]; |
| unsigned NumStoredSelLocs = Record[Idx++]; |
| SmallVector<SourceLocation, 16> SelLocs; |
| SelLocs.reserve(NumStoredSelLocs); |
| for (unsigned i = 0; i != NumStoredSelLocs; ++i) |
| SelLocs.push_back(ReadSourceLocation(Record, Idx)); |
| |
| MD->setParamsAndSelLocs(Reader.getContext(), Params, SelLocs); |
| } |
| |
| void ASTDeclReader::VisitObjCContainerDecl(ObjCContainerDecl *CD) { |
| VisitNamedDecl(CD); |
| CD->setAtStartLoc(ReadSourceLocation(Record, Idx)); |
| CD->setAtEndRange(ReadSourceRange(Record, Idx)); |
| } |
| |
| void ASTDeclReader::VisitObjCInterfaceDecl(ObjCInterfaceDecl *ID) { |
| RedeclarableResult Redecl = VisitRedeclarable(ID); |
| VisitObjCContainerDecl(ID); |
| TypeIDForTypeDecl = Reader.getGlobalTypeID(F, Record[Idx++]); |
| mergeRedeclarable(ID, Redecl); |
| |
| if (Record[Idx++]) { |
| // Read the definition. |
| ID->allocateDefinitionData(); |
| |
| // Set the definition data of the canonical declaration, so other |
| // redeclarations will see it. |
| ID->getCanonicalDecl()->Data = ID->Data; |
| |
| ObjCInterfaceDecl::DefinitionData &Data = ID->data(); |
| |
| // Read the superclass. |
| Data.SuperClass = ReadDeclAs<ObjCInterfaceDecl>(Record, Idx); |
| Data.SuperClassLoc = ReadSourceLocation(Record, Idx); |
| |
| Data.EndLoc = ReadSourceLocation(Record, Idx); |
| |
| // Read the directly referenced protocols and their SourceLocations. |
| unsigned NumProtocols = Record[Idx++]; |
| SmallVector<ObjCProtocolDecl *, 16> Protocols; |
| Protocols.reserve(NumProtocols); |
| for (unsigned I = 0; I != NumProtocols; ++I) |
| Protocols.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx)); |
| SmallVector<SourceLocation, 16> ProtoLocs; |
| ProtoLocs.reserve(NumProtocols); |
| for (unsigned I = 0; I != NumProtocols; ++I) |
| ProtoLocs.push_back(ReadSourceLocation(Record, Idx)); |
| ID->setProtocolList(Protocols.data(), NumProtocols, ProtoLocs.data(), |
| Reader.getContext()); |
| |
| // Read the transitive closure of protocols referenced by this class. |
| NumProtocols = Record[Idx++]; |
| Protocols.clear(); |
| Protocols.reserve(NumProtocols); |
| for (unsigned I = 0; I != NumProtocols; ++I) |
| Protocols.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx)); |
| ID->data().AllReferencedProtocols.set(Protocols.data(), NumProtocols, |
| Reader.getContext()); |
| |
| // We will rebuild this list lazily. |
| ID->setIvarList(0); |
| |
| // Note that we have deserialized a definition. |
| Reader.PendingDefinitions.insert(ID); |
| |
| // Note that we've loaded this Objective-C class. |
| Reader.ObjCClassesLoaded.push_back(ID); |
| } else { |
| ID->Data = ID->getCanonicalDecl()->Data; |
| } |
| } |
| |
| void ASTDeclReader::VisitObjCIvarDecl(ObjCIvarDecl *IVD) { |
| VisitFieldDecl(IVD); |
| IVD->setAccessControl((ObjCIvarDecl::AccessControl)Record[Idx++]); |
| // This field will be built lazily. |
| IVD->setNextIvar(0); |
| bool synth = Record[Idx++]; |
| IVD->setSynthesize(synth); |
| } |
| |
| void ASTDeclReader::VisitObjCProtocolDecl(ObjCProtocolDecl *PD) { |
| RedeclarableResult Redecl = VisitRedeclarable(PD); |
| VisitObjCContainerDecl(PD); |
| mergeRedeclarable(PD, Redecl); |
| |
| if (Record[Idx++]) { |
| // Read the definition. |
| PD->allocateDefinitionData(); |
| |
| // Set the definition data of the canonical declaration, so other |
| // redeclarations will see it. |
| PD->getCanonicalDecl()->Data = PD->Data; |
| |
| unsigned NumProtoRefs = Record[Idx++]; |
| SmallVector<ObjCProtocolDecl *, 16> ProtoRefs; |
| ProtoRefs.reserve(NumProtoRefs); |
| for (unsigned I = 0; I != NumProtoRefs; ++I) |
| ProtoRefs.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx)); |
| SmallVector<SourceLocation, 16> ProtoLocs; |
| ProtoLocs.reserve(NumProtoRefs); |
| for (unsigned I = 0; I != NumProtoRefs; ++I) |
| ProtoLocs.push_back(ReadSourceLocation(Record, Idx)); |
| PD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(), |
| Reader.getContext()); |
| |
| // Note that we have deserialized a definition. |
| Reader.PendingDefinitions.insert(PD); |
| } else { |
| PD->Data = PD->getCanonicalDecl()->Data; |
| } |
| } |
| |
| void ASTDeclReader::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *FD) { |
| VisitFieldDecl(FD); |
| } |
| |
| void ASTDeclReader::VisitObjCCategoryDecl(ObjCCategoryDecl *CD) { |
| VisitObjCContainerDecl(CD); |
| CD->setCategoryNameLoc(ReadSourceLocation(Record, Idx)); |
| CD->setIvarLBraceLoc(ReadSourceLocation(Record, Idx)); |
| CD->setIvarRBraceLoc(ReadSourceLocation(Record, Idx)); |
| |
| // Note that this category has been deserialized. We do this before |
| // deserializing the interface declaration, so that it will consider this |
| /// category. |
| Reader.CategoriesDeserialized.insert(CD); |
| |
| CD->ClassInterface = ReadDeclAs<ObjCInterfaceDecl>(Record, Idx); |
| unsigned NumProtoRefs = Record[Idx++]; |
| SmallVector<ObjCProtocolDecl *, 16> ProtoRefs; |
| ProtoRefs.reserve(NumProtoRefs); |
| for (unsigned I = 0; I != NumProtoRefs; ++I) |
| ProtoRefs.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx)); |
| SmallVector<SourceLocation, 16> ProtoLocs; |
| ProtoLocs.reserve(NumProtoRefs); |
| for (unsigned I = 0; I != NumProtoRefs; ++I) |
| ProtoLocs.push_back(ReadSourceLocation(Record, Idx)); |
| CD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(), |
| Reader.getContext()); |
| } |
| |
| void ASTDeclReader::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *CAD) { |
| VisitNamedDecl(CAD); |
| CAD->setClassInterface(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx)); |
| } |
| |
| void ASTDeclReader::VisitObjCPropertyDecl(ObjCPropertyDecl *D) { |
| VisitNamedDecl(D); |
| D->setAtLoc(ReadSourceLocation(Record, Idx)); |
| D->setLParenLoc(ReadSourceLocation(Record, Idx)); |
| D->setType(GetTypeSourceInfo(Record, Idx)); |
| // FIXME: stable encoding |
| D->setPropertyAttributes( |
| (ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]); |
| D->setPropertyAttributesAsWritten( |
| (ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]); |
| // FIXME: stable encoding |
| D->setPropertyImplementation( |
| (ObjCPropertyDecl::PropertyControl)Record[Idx++]); |
| D->setGetterName(Reader.ReadDeclarationName(F,Record, Idx).getObjCSelector()); |
| D->setSetterName(Reader.ReadDeclarationName(F,Record, Idx).getObjCSelector()); |
| D->setGetterMethodDecl(ReadDeclAs<ObjCMethodDecl>(Record, Idx)); |
| D->setSetterMethodDecl(ReadDeclAs<ObjCMethodDecl>(Record, Idx)); |
| D->setPropertyIvarDecl(ReadDeclAs<ObjCIvarDecl>(Record, Idx)); |
| } |
| |
| void ASTDeclReader::VisitObjCImplDecl(ObjCImplDecl *D) { |
| VisitObjCContainerDecl(D); |
| D->setClassInterface(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx)); |
| } |
| |
| void ASTDeclReader::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { |
| VisitObjCImplDecl(D); |
| D->setIdentifier(Reader.GetIdentifierInfo(F, Record, Idx)); |
| D->CategoryNameLoc = ReadSourceLocation(Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { |
| VisitObjCImplDecl(D); |
| D->setSuperClass(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx)); |
| D->SuperLoc = ReadSourceLocation(Record, Idx); |
| D->setIvarLBraceLoc(ReadSourceLocation(Record, Idx)); |
| D->setIvarRBraceLoc(ReadSourceLocation(Record, Idx)); |
| D->setHasNonZeroConstructors(Record[Idx++]); |
| D->setHasDestructors(Record[Idx++]); |
| llvm::tie(D->IvarInitializers, D->NumIvarInitializers) |
| = Reader.ReadCXXCtorInitializers(F, Record, Idx); |
| } |
| |
| |
| void ASTDeclReader::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) { |
| VisitDecl(D); |
| D->setAtLoc(ReadSourceLocation(Record, Idx)); |
| D->setPropertyDecl(ReadDeclAs<ObjCPropertyDecl>(Record, Idx)); |
| D->PropertyIvarDecl = ReadDeclAs<ObjCIvarDecl>(Record, Idx); |
| D->IvarLoc = ReadSourceLocation(Record, Idx); |
| D->setGetterCXXConstructor(Reader.ReadExpr(F)); |
| D->setSetterCXXAssignment(Reader.ReadExpr(F)); |
| } |
| |
| void ASTDeclReader::VisitFieldDecl(FieldDecl *FD) { |
| VisitDeclaratorDecl(FD); |
| FD->Mutable = Record[Idx++]; |
| if (int BitWidthOrInitializer = Record[Idx++]) { |
| FD->InitializerOrBitWidth.setInt(BitWidthOrInitializer - 1); |
| FD->InitializerOrBitWidth.setPointer(Reader.ReadExpr(F)); |
| } |
| if (!FD->getDeclName()) { |
| if (FieldDecl *Tmpl = ReadDeclAs<FieldDecl>(Record, Idx)) |
| Reader.getContext().setInstantiatedFromUnnamedFieldDecl(FD, Tmpl); |
| } |
| mergeMergeable(FD); |
| } |
| |
| void ASTDeclReader::VisitMSPropertyDecl(MSPropertyDecl *PD) { |
| VisitDeclaratorDecl(PD); |
| PD->GetterId = Reader.GetIdentifierInfo(F, Record, Idx); |
| PD->SetterId = Reader.GetIdentifierInfo(F, Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitIndirectFieldDecl(IndirectFieldDecl *FD) { |
| VisitValueDecl(FD); |
| |
| FD->ChainingSize = Record[Idx++]; |
| assert(FD->ChainingSize >= 2 && "Anonymous chaining must be >= 2"); |
| FD->Chaining = new (Reader.getContext())NamedDecl*[FD->ChainingSize]; |
| |
| for (unsigned I = 0; I != FD->ChainingSize; ++I) |
| FD->Chaining[I] = ReadDeclAs<NamedDecl>(Record, Idx); |
| } |
| |
| ASTDeclReader::RedeclarableResult ASTDeclReader::VisitVarDeclImpl(VarDecl *VD) { |
| RedeclarableResult Redecl = VisitRedeclarable(VD); |
| VisitDeclaratorDecl(VD); |
| |
| VD->VarDeclBits.SClass = (StorageClass)Record[Idx++]; |
| VD->VarDeclBits.TSCSpec = Record[Idx++]; |
| VD->VarDeclBits.InitStyle = Record[Idx++]; |
| VD->VarDeclBits.ExceptionVar = Record[Idx++]; |
| VD->VarDeclBits.NRVOVariable = Record[Idx++]; |
| VD->VarDeclBits.CXXForRangeDecl = Record[Idx++]; |
| VD->VarDeclBits.ARCPseudoStrong = Record[Idx++]; |
| VD->VarDeclBits.IsConstexpr = Record[Idx++]; |
| VD->VarDeclBits.IsInitCapture = Record[Idx++]; |
| VD->VarDeclBits.PreviousDeclInSameBlockScope = Record[Idx++]; |
| Linkage VarLinkage = Linkage(Record[Idx++]); |
| VD->setCachedLinkage(VarLinkage); |
| |
| // Reconstruct the one piece of the IdentifierNamespace that we need. |
| if (VarLinkage != NoLinkage && |
| VD->getLexicalDeclContext()->isFunctionOrMethod()) |
| VD->setLocalExternDecl(); |
| |
| // Only true variables (not parameters or implicit parameters) can be merged. |
| if (VD->getKind() != Decl::ParmVar && VD->getKind() != Decl::ImplicitParam) |
| mergeRedeclarable(VD, Redecl); |
| |
| if (uint64_t Val = Record[Idx++]) { |
| VD->setInit(Reader.ReadExpr(F)); |
| if (Val > 1) { |
| EvaluatedStmt *Eval = VD->ensureEvaluatedStmt(); |
| Eval->CheckedICE = true; |
| Eval->IsICE = Val == 3; |
| } |
| } |
| |
| enum VarKind { |
| VarNotTemplate = 0, VarTemplate, StaticDataMemberSpecialization |
| }; |
| switch ((VarKind)Record[Idx++]) { |
| case VarNotTemplate: |
| break; |
| case VarTemplate: |
| VD->setDescribedVarTemplate(ReadDeclAs<VarTemplateDecl>(Record, Idx)); |
| break; |
| case StaticDataMemberSpecialization: { // HasMemberSpecializationInfo. |
| VarDecl *Tmpl = ReadDeclAs<VarDecl>(Record, Idx); |
| TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++]; |
| SourceLocation POI = ReadSourceLocation(Record, Idx); |
| Reader.getContext().setInstantiatedFromStaticDataMember(VD, Tmpl, TSK,POI); |
| break; |
| } |
| } |
| |
| return Redecl; |
| } |
| |
| void ASTDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) { |
| VisitVarDecl(PD); |
| } |
| |
| void ASTDeclReader::VisitParmVarDecl(ParmVarDecl *PD) { |
| VisitVarDecl(PD); |
| unsigned isObjCMethodParam = Record[Idx++]; |
| unsigned scopeDepth = Record[Idx++]; |
| unsigned scopeIndex = Record[Idx++]; |
| unsigned declQualifier = Record[Idx++]; |
| if (isObjCMethodParam) { |
| assert(scopeDepth == 0); |
| PD->setObjCMethodScopeInfo(scopeIndex); |
| PD->ParmVarDeclBits.ScopeDepthOrObjCQuals = declQualifier; |
| } else { |
| PD->setScopeInfo(scopeDepth, scopeIndex); |
| } |
| PD->ParmVarDeclBits.IsKNRPromoted = Record[Idx++]; |
| PD->ParmVarDeclBits.HasInheritedDefaultArg = Record[Idx++]; |
| if (Record[Idx++]) // hasUninstantiatedDefaultArg. |
| PD->setUninstantiatedDefaultArg(Reader.ReadExpr(F)); |
| |
| // FIXME: If this is a redeclaration of a function from another module, handle |
| // inheritance of default arguments. |
| } |
| |
| void ASTDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) { |
| VisitDecl(AD); |
| AD->setAsmString(cast<StringLiteral>(Reader.ReadExpr(F))); |
| AD->setRParenLoc(ReadSourceLocation(Record, Idx)); |
| } |
| |
| void ASTDeclReader::VisitBlockDecl(BlockDecl *BD) { |
| VisitDecl(BD); |
| BD->setBody(cast_or_null<CompoundStmt>(Reader.ReadStmt(F))); |
| BD->setSignatureAsWritten(GetTypeSourceInfo(Record, Idx)); |
| unsigned NumParams = Record[Idx++]; |
| SmallVector<ParmVarDecl *, 16> Params; |
| Params.reserve(NumParams); |
| for (unsigned I = 0; I != NumParams; ++I) |
| Params.push_back(ReadDeclAs<ParmVarDecl>(Record, Idx)); |
| BD->setParams(Params); |
| |
| BD->setIsVariadic(Record[Idx++]); |
| BD->setBlockMissingReturnType(Record[Idx++]); |
| BD->setIsConversionFromLambda(Record[Idx++]); |
| |
| bool capturesCXXThis = Record[Idx++]; |
| unsigned numCaptures = Record[Idx++]; |
| SmallVector<BlockDecl::Capture, 16> captures; |
| captures.reserve(numCaptures); |
| for (unsigned i = 0; i != numCaptures; ++i) { |
| VarDecl *decl = ReadDeclAs<VarDecl>(Record, Idx); |
| unsigned flags = Record[Idx++]; |
| bool byRef = (flags & 1); |
| bool nested = (flags & 2); |
| Expr *copyExpr = ((flags & 4) ? Reader.ReadExpr(F) : 0); |
| |
| captures.push_back(BlockDecl::Capture(decl, byRef, nested, copyExpr)); |
| } |
| BD->setCaptures(Reader.getContext(), captures.begin(), |
| captures.end(), capturesCXXThis); |
| } |
| |
| void ASTDeclReader::VisitCapturedDecl(CapturedDecl *CD) { |
| VisitDecl(CD); |
| // Body is set by VisitCapturedStmt. |
| for (unsigned i = 0; i < CD->NumParams; ++i) |
| CD->setParam(i, ReadDeclAs<ImplicitParamDecl>(Record, Idx)); |
| } |
| |
| void ASTDeclReader::VisitLinkageSpecDecl(LinkageSpecDecl *D) { |
| VisitDecl(D); |
| D->setLanguage((LinkageSpecDecl::LanguageIDs)Record[Idx++]); |
| D->setExternLoc(ReadSourceLocation(Record, Idx)); |
| D->setRBraceLoc(ReadSourceLocation(Record, Idx)); |
| } |
| |
| void ASTDeclReader::VisitLabelDecl(LabelDecl *D) { |
| VisitNamedDecl(D); |
| D->setLocStart(ReadSourceLocation(Record, Idx)); |
| } |
| |
| |
| void ASTDeclReader::VisitNamespaceDecl(NamespaceDecl *D) { |
| RedeclarableResult Redecl = VisitRedeclarable(D); |
| VisitNamedDecl(D); |
| D->setInline(Record[Idx++]); |
| D->LocStart = ReadSourceLocation(Record, Idx); |
| D->RBraceLoc = ReadSourceLocation(Record, Idx); |
| // FIXME: At the point of this call, D->getCanonicalDecl() returns 0. |
| mergeRedeclarable(D, Redecl); |
| |
| if (Redecl.getFirstID() == ThisDeclID) { |
| // Each module has its own anonymous namespace, which is disjoint from |
| // any other module's anonymous namespaces, so don't attach the anonymous |
| // namespace at all. |
| NamespaceDecl *Anon = ReadDeclAs<NamespaceDecl>(Record, Idx); |
| if (F.Kind != MK_Module) |
| D->setAnonymousNamespace(Anon); |
| } else { |
| // Link this namespace back to the first declaration, which has already |
| // been deserialized. |
| D->AnonOrFirstNamespaceAndInline.setPointer(D->getFirstDecl()); |
| } |
| } |
| |
| void ASTDeclReader::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { |
| VisitNamedDecl(D); |
| D->NamespaceLoc = ReadSourceLocation(Record, Idx); |
| D->IdentLoc = ReadSourceLocation(Record, Idx); |
| D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx); |
| D->Namespace = ReadDeclAs<NamedDecl>(Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitUsingDecl(UsingDecl *D) { |
| VisitNamedDecl(D); |
| D->setUsingLoc(ReadSourceLocation(Record, Idx)); |
| D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx); |
| ReadDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record, Idx); |
| D->FirstUsingShadow.setPointer(ReadDeclAs<UsingShadowDecl>(Record, Idx)); |
| D->setTypename(Record[Idx++]); |
| if (NamedDecl *Pattern = ReadDeclAs<NamedDecl>(Record, Idx)) |
| Reader.getContext().setInstantiatedFromUsingDecl(D, Pattern); |
| } |
| |
| void ASTDeclReader::VisitUsingShadowDecl(UsingShadowDecl *D) { |
| VisitNamedDecl(D); |
| D->setTargetDecl(ReadDeclAs<NamedDecl>(Record, Idx)); |
| D->UsingOrNextShadow = ReadDeclAs<NamedDecl>(Record, Idx); |
| UsingShadowDecl *Pattern = ReadDeclAs<UsingShadowDecl>(Record, Idx); |
| if (Pattern) |
| Reader.getContext().setInstantiatedFromUsingShadowDecl(D, Pattern); |
| } |
| |
| void ASTDeclReader::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { |
| VisitNamedDecl(D); |
| D->UsingLoc = ReadSourceLocation(Record, Idx); |
| D->NamespaceLoc = ReadSourceLocation(Record, Idx); |
| D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx); |
| D->NominatedNamespace = ReadDeclAs<NamedDecl>(Record, Idx); |
| D->CommonAncestor = ReadDeclAs<DeclContext>(Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { |
| VisitValueDecl(D); |
| D->setUsingLoc(ReadSourceLocation(Record, Idx)); |
| D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx); |
| ReadDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitUnresolvedUsingTypenameDecl( |
| UnresolvedUsingTypenameDecl *D) { |
| VisitTypeDecl(D); |
| D->TypenameLocation = ReadSourceLocation(Record, Idx); |
| D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx); |
| } |
| |
| void ASTDeclReader::ReadCXXDefinitionData( |
| struct CXXRecordDecl::DefinitionData &Data, |
| const RecordData &Record, unsigned &Idx) { |
| // Note: the caller has deserialized the IsLambda bit already. |
| Data.UserDeclaredConstructor = Record[Idx++]; |
| Data.UserDeclaredSpecialMembers = Record[Idx++]; |
| Data.Aggregate = Record[Idx++]; |
| Data.PlainOldData = Record[Idx++]; |
| Data.Empty = Record[Idx++]; |
| Data.Polymorphic = Record[Idx++]; |
| Data.Abstract = Record[Idx++]; |
| Data.IsStandardLayout = Record[Idx++]; |
| Data.HasNoNonEmptyBases = Record[Idx++]; |
| Data.HasPrivateFields = Record[Idx++]; |
| Data.HasProtectedFields = Record[Idx++]; |
| Data.HasPublicFields = Record[Idx++]; |
| Data.HasMutableFields = Record[Idx++]; |
| Data.HasOnlyCMembers = Record[Idx++]; |
| Data.HasInClassInitializer = Record[Idx++]; |
| Data.HasUninitializedReferenceMember = Record[Idx++]; |
| Data.NeedOverloadResolutionForMoveConstructor = Record[Idx++]; |
| Data.NeedOverloadResolutionForMoveAssignment = Record[Idx++]; |
| Data.NeedOverloadResolutionForDestructor = Record[Idx++]; |
| Data.DefaultedMoveConstructorIsDeleted = Record[Idx++]; |
| Data.DefaultedMoveAssignmentIsDeleted = Record[Idx++]; |
| Data.DefaultedDestructorIsDeleted = Record[Idx++]; |
| Data.HasTrivialSpecialMembers = Record[Idx++]; |
| Data.HasIrrelevantDestructor = Record[Idx++]; |
| Data.HasConstexprNonCopyMoveConstructor = Record[Idx++]; |
| Data.DefaultedDefaultConstructorIsConstexpr = Record[Idx++]; |
| Data.HasConstexprDefaultConstructor = Record[Idx++]; |
| Data.HasNonLiteralTypeFieldsOrBases = Record[Idx++]; |
| Data.ComputedVisibleConversions = Record[Idx++]; |
| Data.UserProvidedDefaultConstructor = Record[Idx++]; |
| Data.DeclaredSpecialMembers = Record[Idx++]; |
| Data.ImplicitCopyConstructorHasConstParam = Record[Idx++]; |
| Data.ImplicitCopyAssignmentHasConstParam = Record[Idx++]; |
| Data.HasDeclaredCopyConstructorWithConstParam = Record[Idx++]; |
| Data.HasDeclaredCopyAssignmentWithConstParam = Record[Idx++]; |
| Data.FailedImplicitMoveConstructor = Record[Idx++]; |
| Data.FailedImplicitMoveAssignment = Record[Idx++]; |
| |
| Data.NumBases = Record[Idx++]; |
| if (Data.NumBases) |
| Data.Bases = Reader.readCXXBaseSpecifiers(F, Record, Idx); |
| Data.NumVBases = Record[Idx++]; |
| if (Data.NumVBases) |
| Data.VBases = Reader.readCXXBaseSpecifiers(F, Record, Idx); |
| |
| Reader.ReadUnresolvedSet(F, Data.Conversions, Record, Idx); |
| Reader.ReadUnresolvedSet(F, Data.VisibleConversions, Record, Idx); |
| assert(Data.Definition && "Data.Definition should be already set!"); |
| Data.FirstFriend = ReadDeclID(Record, Idx); |
| |
| if (Data.IsLambda) { |
| typedef LambdaExpr::Capture Capture; |
| CXXRecordDecl::LambdaDefinitionData &Lambda |
| = static_cast<CXXRecordDecl::LambdaDefinitionData &>(Data); |
| Lambda.Dependent = Record[Idx++]; |
| Lambda.NumCaptures = Record[Idx++]; |
| Lambda.NumExplicitCaptures = Record[Idx++]; |
| Lambda.ManglingNumber = Record[Idx++]; |
| Lambda.ContextDecl = ReadDecl(Record, Idx); |
| Lambda.Captures |
| = (Capture*)Reader.Context.Allocate(sizeof(Capture)*Lambda.NumCaptures); |
| Capture *ToCapture = Lambda.Captures; |
| Lambda.MethodTyInfo = GetTypeSourceInfo(Record, Idx); |
| Lambda.TheLambdaExpr = cast<LambdaExpr>(Reader.ReadExpr(F)); |
| for (unsigned I = 0, N = Lambda.NumCaptures; I != N; ++I) { |
| SourceLocation Loc = ReadSourceLocation(Record, Idx); |
| bool IsImplicit = Record[Idx++]; |
| LambdaCaptureKind Kind = static_cast<LambdaCaptureKind>(Record[Idx++]); |
| switch (Kind) { |
| case LCK_This: |
| *ToCapture++ = Capture(Loc, IsImplicit, Kind, 0, SourceLocation()); |
| break; |
| case LCK_ByCopy: |
| case LCK_ByRef: |
| VarDecl *Var = ReadDeclAs<VarDecl>(Record, Idx); |
| SourceLocation EllipsisLoc = ReadSourceLocation(Record, Idx); |
| *ToCapture++ = Capture(Loc, IsImplicit, Kind, Var, EllipsisLoc); |
| break; |
| } |
| } |
| } |
| } |
| |
| ASTDeclReader::RedeclarableResult |
| ASTDeclReader::VisitCXXRecordDeclImpl(CXXRecordDecl *D) { |
| RedeclarableResult Redecl = VisitRecordDeclImpl(D); |
| |
| ASTContext &C = Reader.getContext(); |
| bool WasDefinition = Record[Idx++]; |
| if (WasDefinition) { |
| // Determine whether this is a lambda closure type, so that we can |
| // allocate the appropriate DefinitionData structure. |
| bool IsLambda = Record[Idx++]; |
| if (IsLambda) |
| D->DefinitionData = new (C) CXXRecordDecl::LambdaDefinitionData(D, 0, |
| false); |
| else |
| D->DefinitionData = new (C) struct CXXRecordDecl::DefinitionData(D); |
| |
| ReadCXXDefinitionData(*D->DefinitionData, Record, Idx); |
| |
| // Propagate the DefinitionData pointer to the canonical declaration, so |
| // that all other deserialized declarations will see it. |
| CXXRecordDecl *Canon = D->getCanonicalDecl(); |
| if (Canon == D) { |
| // Nothing to do. |
| } else if (!Canon->DefinitionData) { |
| Canon->DefinitionData = D->DefinitionData; |
| |
| // Note that we have deserialized a definition. Any declarations |
| // deserialized before this one will be be given the DefinitionData |
| // pointer at the end. |
| Reader.PendingDefinitions.insert(D); |
| } else { |
| // We have already deserialized a definition of this record. This |
| // definition is no longer really a definition. Note that the pre-existing |
| // definition is the *real* definition. |
| // FIXME: Check DefinitionData for consistency with prior definition. |
| Reader.MergedDeclContexts.insert( |
| std::make_pair(D, D->getCanonicalDecl()->DefinitionData->Definition)); |
| D->IsCompleteDefinition = false; |
| D->DefinitionData = D->getCanonicalDecl()->DefinitionData; |
| } |
| } else { |
| // Propagate DefinitionData pointer from the canonical declaration. |
| D->DefinitionData = D->getCanonicalDecl()->DefinitionData; |
| } |
| |
| enum CXXRecKind { |
| CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization |
| }; |
| switch ((CXXRecKind)Record[Idx++]) { |
| case CXXRecNotTemplate: |
| break; |
| case CXXRecTemplate: |
| D->TemplateOrInstantiation = ReadDeclAs<ClassTemplateDecl>(Record, Idx); |
| break; |
| case CXXRecMemberSpecialization: { |
| CXXRecordDecl *RD = ReadDeclAs<CXXRecordDecl>(Record, Idx); |
| TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++]; |
| SourceLocation POI = ReadSourceLocation(Record, Idx); |
| MemberSpecializationInfo *MSI = new (C) MemberSpecializationInfo(RD, TSK); |
| MSI->setPointOfInstantiation(POI); |
| D->TemplateOrInstantiation = MSI; |
| break; |
| } |
| } |
| |
| // Lazily load the key function to avoid deserializing every method so we can |
| // compute it. |
| if (WasDefinition) { |
| DeclID KeyFn = ReadDeclID(Record, Idx); |
| if (KeyFn && D->IsCompleteDefinition) |
| C.KeyFunctions[D] = KeyFn; |
| } |
| |
| return Redecl; |
| } |
| |
| void ASTDeclReader::VisitCXXMethodDecl(CXXMethodDecl *D) { |
| VisitFunctionDecl(D); |
| unsigned NumOverridenMethods = Record[Idx++]; |
| while (NumOverridenMethods--) { |
| // Avoid invariant checking of CXXMethodDecl::addOverriddenMethod, |
| // MD may be initializing. |
| if (CXXMethodDecl *MD = ReadDeclAs<CXXMethodDecl>(Record, Idx)) |
| Reader.getContext().addOverriddenMethod(D, MD); |
| } |
| } |
| |
| void ASTDeclReader::VisitCXXConstructorDecl(CXXConstructorDecl *D) { |
| VisitCXXMethodDecl(D); |
| |
| D->IsExplicitSpecified = Record[Idx++]; |
| llvm::tie(D->CtorInitializers, D->NumCtorInitializers) |
| = Reader.ReadCXXCtorInitializers(F, Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitCXXDestructorDecl(CXXDestructorDecl *D) { |
| VisitCXXMethodDecl(D); |
| |
| D->OperatorDelete = ReadDeclAs<FunctionDecl>(Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitCXXConversionDecl(CXXConversionDecl *D) { |
| VisitCXXMethodDecl(D); |
| D->IsExplicitSpecified = Record[Idx++]; |
| } |
| |
| void ASTDeclReader::VisitImportDecl(ImportDecl *D) { |
| VisitDecl(D); |
| D->ImportedAndComplete.setPointer(readModule(Record, Idx)); |
| D->ImportedAndComplete.setInt(Record[Idx++]); |
| SourceLocation *StoredLocs = reinterpret_cast<SourceLocation *>(D + 1); |
| for (unsigned I = 0, N = Record.back(); I != N; ++I) |
| StoredLocs[I] = ReadSourceLocation(Record, Idx); |
| ++Idx; // The number of stored source locations. |
| } |
| |
| void ASTDeclReader::VisitAccessSpecDecl(AccessSpecDecl *D) { |
| VisitDecl(D); |
| D->setColonLoc(ReadSourceLocation(Record, Idx)); |
| } |
| |
| void ASTDeclReader::VisitFriendDecl(FriendDecl *D) { |
| VisitDecl(D); |
| if (Record[Idx++]) // hasFriendDecl |
| D->Friend = ReadDeclAs<NamedDecl>(Record, Idx); |
| else |
| D->Friend = GetTypeSourceInfo(Record, Idx); |
| for (unsigned i = 0; i != D->NumTPLists; ++i) |
| D->getTPLists()[i] = Reader.ReadTemplateParameterList(F, Record, Idx); |
| D->NextFriend = ReadDeclID(Record, Idx); |
| D->UnsupportedFriend = (Record[Idx++] != 0); |
| D->FriendLoc = ReadSourceLocation(Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitFriendTemplateDecl(FriendTemplateDecl *D) { |
| VisitDecl(D); |
| unsigned NumParams = Record[Idx++]; |
| D->NumParams = NumParams; |
| D->Params = new TemplateParameterList*[NumParams]; |
| for (unsigned i = 0; i != NumParams; ++i) |
| D->Params[i] = Reader.ReadTemplateParameterList(F, Record, Idx); |
| if (Record[Idx++]) // HasFriendDecl |
| D->Friend = ReadDeclAs<NamedDecl>(Record, Idx); |
| else |
| D->Friend = GetTypeSourceInfo(Record, Idx); |
| D->FriendLoc = ReadSourceLocation(Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitTemplateDecl(TemplateDecl *D) { |
| VisitNamedDecl(D); |
| |
| NamedDecl *TemplatedDecl = ReadDeclAs<NamedDecl>(Record, Idx); |
| TemplateParameterList* TemplateParams |
| = Reader.ReadTemplateParameterList(F, Record, Idx); |
| D->init(TemplatedDecl, TemplateParams); |
| |
| // FIXME: If this is a redeclaration of a template from another module, handle |
| // inheritance of default template arguments. |
| } |
| |
| ASTDeclReader::RedeclarableResult |
| ASTDeclReader::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) { |
| RedeclarableResult Redecl = VisitRedeclarable(D); |
| |
| // Make sure we've allocated the Common pointer first. We do this before |
| // VisitTemplateDecl so that getCommonPtr() can be used during initialization. |
| RedeclarableTemplateDecl *CanonD = D->getCanonicalDecl(); |
| if (!CanonD->Common) { |
| CanonD->Common = CanonD->newCommon(Reader.getContext()); |
| Reader.PendingDefinitions.insert(CanonD); |
| } |
| D->Common = CanonD->Common; |
| |
| // If this is the first declaration of the template, fill in the information |
| // for the 'common' pointer. |
| if (ThisDeclID == Redecl.getFirstID()) { |
| if (RedeclarableTemplateDecl *RTD |
| = ReadDeclAs<RedeclarableTemplateDecl>(Record, Idx)) { |
| assert(RTD->getKind() == D->getKind() && |
| "InstantiatedFromMemberTemplate kind mismatch"); |
| D->setInstantiatedFromMemberTemplate(RTD); |
| if (Record[Idx++]) |
| D->setMemberSpecialization(); |
| } |
| } |
| |
| VisitTemplateDecl(D); |
| D->IdentifierNamespace = Record[Idx++]; |
| |
| mergeRedeclarable(D, Redecl); |
| |
| // If we merged the template with a prior declaration chain, merge the common |
| // pointer. |
| // FIXME: Actually merge here, don't just overwrite. |
| D->Common = D->getCanonicalDecl()->Common; |
| |
| return Redecl; |
| } |
| |
| void ASTDeclReader::VisitClassTemplateDecl(ClassTemplateDecl *D) { |
| RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D); |
| |
| if (ThisDeclID == Redecl.getFirstID()) { |
| // This ClassTemplateDecl owns a CommonPtr; read it to keep track of all of |
| // the specializations. |
| SmallVector<serialization::DeclID, 2> SpecIDs; |
| SpecIDs.push_back(0); |
| |
| // Specializations. |
| unsigned Size = Record[Idx++]; |
| SpecIDs[0] += Size; |
| for (unsigned I = 0; I != Size; ++I) |
| SpecIDs.push_back(ReadDeclID(Record, Idx)); |
| |
| // Partial specializations. |
| Size = Record[Idx++]; |
| SpecIDs[0] += Size; |
| for (unsigned I = 0; I != Size; ++I) |
| SpecIDs.push_back(ReadDeclID(Record, Idx)); |
| |
| ClassTemplateDecl::Common *CommonPtr = D->getCommonPtr(); |
| if (SpecIDs[0]) { |
| typedef serialization::DeclID DeclID; |
| |
| // FIXME: Append specializations! |
| CommonPtr->LazySpecializations |
| = new (Reader.getContext()) DeclID [SpecIDs.size()]; |
| memcpy(CommonPtr->LazySpecializations, SpecIDs.data(), |
| SpecIDs.size() * sizeof(DeclID)); |
| } |
| |
| CommonPtr->InjectedClassNameType = Reader.readType(F, Record, Idx); |
| } |
| } |
| |
| /// TODO: Unify with ClassTemplateDecl version? |
| /// May require unifying ClassTemplateDecl and |
| /// VarTemplateDecl beyond TemplateDecl... |
| void ASTDeclReader::VisitVarTemplateDecl(VarTemplateDecl *D) { |
| RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D); |
| |
| if (ThisDeclID == Redecl.getFirstID()) { |
| // This VarTemplateDecl owns a CommonPtr; read it to keep track of all of |
| // the specializations. |
| SmallVector<serialization::DeclID, 2> SpecIDs; |
| SpecIDs.push_back(0); |
| |
| // Specializations. |
| unsigned Size = Record[Idx++]; |
| SpecIDs[0] += Size; |
| for (unsigned I = 0; I != Size; ++I) |
| SpecIDs.push_back(ReadDeclID(Record, Idx)); |
| |
| // Partial specializations. |
| Size = Record[Idx++]; |
| SpecIDs[0] += Size; |
| for (unsigned I = 0; I != Size; ++I) |
| SpecIDs.push_back(ReadDeclID(Record, Idx)); |
| |
| VarTemplateDecl::Common *CommonPtr = D->getCommonPtr(); |
| if (SpecIDs[0]) { |
| typedef serialization::DeclID DeclID; |
| |
| // FIXME: Append specializations! |
| CommonPtr->LazySpecializations = |
| new (Reader.getContext()) DeclID[SpecIDs.size()]; |
| memcpy(CommonPtr->LazySpecializations, SpecIDs.data(), |
| SpecIDs.size() * sizeof(DeclID)); |
| } |
| } |
| } |
| |
| ASTDeclReader::RedeclarableResult |
| ASTDeclReader::VisitClassTemplateSpecializationDeclImpl( |
| ClassTemplateSpecializationDecl *D) { |
| RedeclarableResult Redecl = VisitCXXRecordDeclImpl(D); |
| |
| ASTContext &C = Reader.getContext(); |
| if (Decl *InstD = ReadDecl(Record, Idx)) { |
| if (ClassTemplateDecl *CTD = dyn_cast<ClassTemplateDecl>(InstD)) { |
| D->SpecializedTemplate = CTD; |
| } else { |
| SmallVector<TemplateArgument, 8> TemplArgs; |
| Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx); |
| TemplateArgumentList *ArgList |
| = TemplateArgumentList::CreateCopy(C, TemplArgs.data(), |
| TemplArgs.size()); |
| ClassTemplateSpecializationDecl::SpecializedPartialSpecialization *PS |
| = new (C) ClassTemplateSpecializationDecl:: |
| SpecializedPartialSpecialization(); |
| PS->PartialSpecialization |
| = cast<ClassTemplatePartialSpecializationDecl>(InstD); |
| PS->TemplateArgs = ArgList; |
| D->SpecializedTemplate = PS; |
| } |
| } |
| |
| SmallVector<TemplateArgument, 8> TemplArgs; |
| Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx); |
| D->TemplateArgs = TemplateArgumentList::CreateCopy(C, TemplArgs.data(), |
| TemplArgs.size()); |
| D->PointOfInstantiation = ReadSourceLocation(Record, Idx); |
| D->SpecializationKind = (TemplateSpecializationKind)Record[Idx++]; |
| |
| bool writtenAsCanonicalDecl = Record[Idx++]; |
| if (writtenAsCanonicalDecl) { |
| ClassTemplateDecl *CanonPattern = ReadDeclAs<ClassTemplateDecl>(Record,Idx); |
| if (D->isCanonicalDecl()) { // It's kept in the folding set. |
| // Set this as, or find, the canonical declaration for this specialization |
| ClassTemplateSpecializationDecl *CanonSpec; |
| if (ClassTemplatePartialSpecializationDecl *Partial = |
| dyn_cast<ClassTemplatePartialSpecializationDecl>(D)) { |
| CanonSpec = CanonPattern->getCommonPtr()->PartialSpecializations |
| .GetOrInsertNode(Partial); |
| } else { |
| CanonSpec = |
| CanonPattern->getCommonPtr()->Specializations.GetOrInsertNode(D); |
| } |
| // If there was already a canonical specialization, merge into it. |
| if (CanonSpec != D) { |
| mergeRedeclarable<TagDecl>(D, CanonSpec, Redecl); |
| |
| // This declaration might be a definition. Merge with any existing |
| // definition. |
| if (D->DefinitionData) { |
| if (!CanonSpec->DefinitionData) { |
| CanonSpec->DefinitionData = D->DefinitionData; |
| } else { |
| // FIXME: Check DefinitionData for consistency with prior definition |
| Reader.PendingDefinitions.erase(D); |
| Reader.MergedDeclContexts.insert( |
| std::make_pair(D, CanonSpec->DefinitionData->Definition)); |
| D->IsCompleteDefinition = false; |
| D->DefinitionData = CanonSpec->DefinitionData; |
| } |
| } |
| } |
| } |
| } |
| |
| // Explicit info. |
| if (TypeSourceInfo *TyInfo = GetTypeSourceInfo(Record, Idx)) { |
| ClassTemplateSpecializationDecl::ExplicitSpecializationInfo *ExplicitInfo |
| = new (C) ClassTemplateSpecializationDecl::ExplicitSpecializationInfo; |
| ExplicitInfo->TypeAsWritten = TyInfo; |
| ExplicitInfo->ExternLoc = ReadSourceLocation(Record, Idx); |
| ExplicitInfo->TemplateKeywordLoc = ReadSourceLocation(Record, Idx); |
| D->ExplicitInfo = ExplicitInfo; |
| } |
| |
| return Redecl; |
| } |
| |
| void ASTDeclReader::VisitClassTemplatePartialSpecializationDecl( |
| ClassTemplatePartialSpecializationDecl *D) { |
| RedeclarableResult Redecl = VisitClassTemplateSpecializationDeclImpl(D); |
| |
| D->TemplateParams = Reader.ReadTemplateParameterList(F, Record, Idx); |
| D->ArgsAsWritten = Reader.ReadASTTemplateArgumentListInfo(F, Record, Idx); |
| |
| // These are read/set from/to the first declaration. |
| if (ThisDeclID == Redecl.getFirstID()) { |
| D->InstantiatedFromMember.setPointer( |
| ReadDeclAs<ClassTemplatePartialSpecializationDecl>(Record, Idx)); |
| D->InstantiatedFromMember.setInt(Record[Idx++]); |
| } |
| } |
| |
| void ASTDeclReader::VisitClassScopeFunctionSpecializationDecl( |
| ClassScopeFunctionSpecializationDecl *D) { |
| VisitDecl(D); |
| D->Specialization = ReadDeclAs<CXXMethodDecl>(Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { |
| RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D); |
| |
| if (ThisDeclID == Redecl.getFirstID()) { |
| // This FunctionTemplateDecl owns a CommonPtr; read it. |
| |
| // Read the function specialization declaration IDs. The specializations |
| // themselves will be loaded if they're needed. |
| if (unsigned NumSpecs = Record[Idx++]) { |
| // FIXME: Append specializations! |
| FunctionTemplateDecl::Common *CommonPtr = D->getCommonPtr(); |
| CommonPtr->LazySpecializations = new (Reader.getContext()) |
| serialization::DeclID[NumSpecs + 1]; |
| CommonPtr->LazySpecializations[0] = NumSpecs; |
| for (unsigned I = 0; I != NumSpecs; ++I) |
| CommonPtr->LazySpecializations[I + 1] = ReadDeclID(Record, Idx); |
| } |
| } |
| } |
| |
| /// TODO: Unify with ClassTemplateSpecializationDecl version? |
| /// May require unifying ClassTemplate(Partial)SpecializationDecl and |
| /// VarTemplate(Partial)SpecializationDecl with a new data |
| /// structure Template(Partial)SpecializationDecl, and |
| /// using Template(Partial)SpecializationDecl as input type. |
| ASTDeclReader::RedeclarableResult |
| ASTDeclReader::VisitVarTemplateSpecializationDeclImpl( |
| VarTemplateSpecializationDecl *D) { |
| RedeclarableResult Redecl = VisitVarDeclImpl(D); |
| |
| ASTContext &C = Reader.getContext(); |
| if (Decl *InstD = ReadDecl(Record, Idx)) { |
| if (VarTemplateDecl *VTD = dyn_cast<VarTemplateDecl>(InstD)) { |
| D->SpecializedTemplate = VTD; |
| } else { |
| SmallVector<TemplateArgument, 8> TemplArgs; |
| Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx); |
| TemplateArgumentList *ArgList = TemplateArgumentList::CreateCopy( |
| C, TemplArgs.data(), TemplArgs.size()); |
| VarTemplateSpecializationDecl::SpecializedPartialSpecialization *PS = |
| new (C) |
| VarTemplateSpecializationDecl::SpecializedPartialSpecialization(); |
| PS->PartialSpecialization = |
| cast<VarTemplatePartialSpecializationDecl>(InstD); |
| PS->TemplateArgs = ArgList; |
| D->SpecializedTemplate = PS; |
| } |
| } |
| |
| // Explicit info. |
| if (TypeSourceInfo *TyInfo = GetTypeSourceInfo(Record, Idx)) { |
| VarTemplateSpecializationDecl::ExplicitSpecializationInfo *ExplicitInfo = |
| new (C) VarTemplateSpecializationDecl::ExplicitSpecializationInfo; |
| ExplicitInfo->TypeAsWritten = TyInfo; |
| ExplicitInfo->ExternLoc = ReadSourceLocation(Record, Idx); |
| ExplicitInfo->TemplateKeywordLoc = ReadSourceLocation(Record, Idx); |
| D->ExplicitInfo = ExplicitInfo; |
| } |
| |
| SmallVector<TemplateArgument, 8> TemplArgs; |
| Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx); |
| D->TemplateArgs = |
| TemplateArgumentList::CreateCopy(C, TemplArgs.data(), TemplArgs.size()); |
| D->PointOfInstantiation = ReadSourceLocation(Record, Idx); |
| D->SpecializationKind = (TemplateSpecializationKind)Record[Idx++]; |
| |
| bool writtenAsCanonicalDecl = Record[Idx++]; |
| if (writtenAsCanonicalDecl) { |
| VarTemplateDecl *CanonPattern = ReadDeclAs<VarTemplateDecl>(Record, Idx); |
| if (D->isCanonicalDecl()) { // It's kept in the folding set. |
| if (VarTemplatePartialSpecializationDecl *Partial = |
| dyn_cast<VarTemplatePartialSpecializationDecl>(D)) { |
| CanonPattern->getCommonPtr()->PartialSpecializations |
| .GetOrInsertNode(Partial); |
| } else { |
| CanonPattern->getCommonPtr()->Specializations.GetOrInsertNode(D); |
| } |
| } |
| } |
| |
| return Redecl; |
| } |
| |
| /// TODO: Unify with ClassTemplatePartialSpecializationDecl version? |
| /// May require unifying ClassTemplate(Partial)SpecializationDecl and |
| /// VarTemplate(Partial)SpecializationDecl with a new data |
| /// structure Template(Partial)SpecializationDecl, and |
| /// using Template(Partial)SpecializationDecl as input type. |
| void ASTDeclReader::VisitVarTemplatePartialSpecializationDecl( |
| VarTemplatePartialSpecializationDecl *D) { |
| RedeclarableResult Redecl = VisitVarTemplateSpecializationDeclImpl(D); |
| |
| D->TemplateParams = Reader.ReadTemplateParameterList(F, Record, Idx); |
| D->ArgsAsWritten = Reader.ReadASTTemplateArgumentListInfo(F, Record, Idx); |
| |
| // These are read/set from/to the first declaration. |
| if (ThisDeclID == Redecl.getFirstID()) { |
| D->InstantiatedFromMember.setPointer( |
| ReadDeclAs<VarTemplatePartialSpecializationDecl>(Record, Idx)); |
| D->InstantiatedFromMember.setInt(Record[Idx++]); |
| } |
| } |
| |
| void ASTDeclReader::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) { |
| VisitTypeDecl(D); |
| |
| D->setDeclaredWithTypename(Record[Idx++]); |
| |
| bool Inherited = Record[Idx++]; |
| TypeSourceInfo *DefArg = GetTypeSourceInfo(Record, Idx); |
| D->setDefaultArgument(DefArg, Inherited); |
| } |
| |
| void ASTDeclReader::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) { |
| VisitDeclaratorDecl(D); |
| // TemplateParmPosition. |
| D->setDepth(Record[Idx++]); |
| D->setPosition(Record[Idx++]); |
| if (D->isExpandedParameterPack()) { |
| void **Data = reinterpret_cast<void **>(D + 1); |
| for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { |
| Data[2*I] = Reader.readType(F, Record, Idx).getAsOpaquePtr(); |
| Data[2*I + 1] = GetTypeSourceInfo(Record, Idx); |
| } |
| } else { |
| // Rest of NonTypeTemplateParmDecl. |
| D->ParameterPack = Record[Idx++]; |
| if (Record[Idx++]) { |
| Expr *DefArg = Reader.ReadExpr(F); |
| bool Inherited = Record[Idx++]; |
| D->setDefaultArgument(DefArg, Inherited); |
| } |
| } |
| } |
| |
| void ASTDeclReader::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) { |
| VisitTemplateDecl(D); |
| // TemplateParmPosition. |
| D->setDepth(Record[Idx++]); |
| D->setPosition(Record[Idx++]); |
| if (D->isExpandedParameterPack()) { |
| void **Data = reinterpret_cast<void **>(D + 1); |
| for (unsigned I = 0, N = D->getNumExpansionTemplateParameters(); |
| I != N; ++I) |
| Data[I] = Reader.ReadTemplateParameterList(F, Record, Idx); |
| } else { |
| // Rest of TemplateTemplateParmDecl. |
| TemplateArgumentLoc Arg = Reader.ReadTemplateArgumentLoc(F, Record, Idx); |
| bool IsInherited = Record[Idx++]; |
| D->setDefaultArgument(Arg, IsInherited); |
| D->ParameterPack = Record[Idx++]; |
| } |
| } |
| |
| void ASTDeclReader::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { |
| VisitRedeclarableTemplateDecl(D); |
| } |
| |
| void ASTDeclReader::VisitStaticAssertDecl(StaticAssertDecl *D) { |
| VisitDecl(D); |
| D->AssertExprAndFailed.setPointer(Reader.ReadExpr(F)); |
| D->AssertExprAndFailed.setInt(Record[Idx++]); |
| D->Message = cast<StringLiteral>(Reader.ReadExpr(F)); |
| D->RParenLoc = ReadSourceLocation(Record, Idx); |
| } |
| |
| void ASTDeclReader::VisitEmptyDecl(EmptyDecl *D) { |
| VisitDecl(D); |
| } |
| |
| std::pair<uint64_t, uint64_t> |
| ASTDeclReader::VisitDeclContext(DeclContext *DC) { |
| uint64_t LexicalOffset = Record[Idx++]; |
| uint64_t VisibleOffset = Record[Idx++]; |
| return std::make_pair(LexicalOffset, VisibleOffset); |
| } |
| |
| template <typename T> |
| ASTDeclReader::RedeclarableResult |
| ASTDeclReader::VisitRedeclarable(Redeclarable<T> *D) { |
| DeclID FirstDeclID = ReadDeclID(Record, Idx); |
| |
| // 0 indicates that this declaration was the only declaration of its entity, |
| // and is used for space optimization. |
| if (FirstDeclID == 0) |
| FirstDeclID = ThisDeclID; |
| |
| T *FirstDecl = cast_or_null<T>(Reader.GetDecl(FirstDeclID)); |
| if (FirstDecl != D) { |
| // We delay loading of the redeclaration chain to avoid deeply nested calls. |
| // We temporarily set the first (canonical) declaration as the previous one |
| // which is the one that matters and mark the real previous DeclID to be |
| // loaded & attached later on. |
| D->RedeclLink = Redeclarable<T>::PreviousDeclLink(FirstDecl); |
| } |
| |
| // Note that this declaration has been deserialized. |
| Reader.RedeclsDeserialized.insert(static_cast<T *>(D)); |
| |
| // The result structure takes care to note that we need to load the |
| // other declaration chains for this ID. |
| return RedeclarableResult(Reader, FirstDeclID, |
| static_cast<T *>(D)->getKind()); |
| } |
| |
| /// \brief Attempts to merge the given declaration (D) with another declaration |
| /// of the same entity. |
| template<typename T> |
| void ASTDeclReader::mergeRedeclarable(Redeclarable<T> *D, |
| RedeclarableResult &Redecl) { |
| // If modules are not available, there is no reason to perform this merge. |
| if (!Reader.getContext().getLangOpts().Modules) |
| return; |
| |
| if (FindExistingResult ExistingRes = findExisting(static_cast<T*>(D))) |
| if (T *Existing = ExistingRes) |
| mergeRedeclarable(D, Existing, Redecl); |
| } |
| |
| /// \brief Attempts to merge the given declaration (D) with another declaration |
| /// of the same entity. |
| template<typename T> |
| void ASTDeclReader::mergeRedeclarable(Redeclarable<T> *D, T *Existing, |
| RedeclarableResult &Redecl) { |
| T *ExistingCanon = Existing->getCanonicalDecl(); |
| T *DCanon = static_cast<T*>(D)->getCanonicalDecl(); |
| if (ExistingCanon != DCanon) { |
| // Have our redeclaration link point back at the canonical declaration |
| // of the existing declaration, so that this declaration has the |
| // appropriate canonical declaration. |
| D->RedeclLink = Redeclarable<T>::PreviousDeclLink(ExistingCanon); |
| |
| // When we merge a namespace, update its pointer to the first namespace. |
| if (NamespaceDecl *Namespace |
| = dyn_cast<NamespaceDecl>(static_cast<T*>(D))) { |
| Namespace->AnonOrFirstNamespaceAndInline.setPointer( |
| static_cast<NamespaceDecl *>(static_cast<void*>(ExistingCanon))); |
| } |
| |
| // Don't introduce DCanon into the set of pending declaration chains. |
| Redecl.suppress(); |
| |
| // Introduce ExistingCanon into the set of pending declaration chains, |
| // if in fact it came from a module file. |
| if (ExistingCanon->isFromASTFile()) { |
| GlobalDeclID ExistingCanonID = ExistingCanon->getGlobalID(); |
| assert(ExistingCanonID && "Unrecorded canonical declaration ID?"); |
| if (Reader.PendingDeclChainsKnown.insert(ExistingCanonID)) |
| Reader.PendingDeclChains.push_back(ExistingCanonID); |
| } |
| |
| // If this declaration was the canonical declaration, make a note of |
| // that. We accept the linear algorithm here because the number of |
| // unique canonical declarations of an entity should always be tiny. |
| if (DCanon == static_cast<T*>(D)) { |
| SmallVectorImpl<DeclID> &Merged = Reader.MergedDecls[ExistingCanon]; |
| if (std::find(Merged.begin(), Merged.end(), Redecl.getFirstID()) |
| == Merged.end()) |
| Merged.push_back(Redecl.getFirstID()); |
| |
| // If ExistingCanon did not come from a module file, introduce the |
| // first declaration that *does* come from a module file to the |
| // set of pending declaration chains, so that we merge this |
| // declaration. |
| if (!ExistingCanon->isFromASTFile() && |
| Reader.PendingDeclChainsKnown.insert(Redecl.getFirstID())) |
| Reader.PendingDeclChains.push_back(Merged[0]); |
| } |
| } |
| } |
| |
| /// \brief Attempts to merge the given declaration (D) with another declaration |
| /// of the same entity, for the case where the entity is not actually |
| /// redeclarable. This happens, for instance, when merging the fields of |
| /// identical class definitions from two different modules. |
| template<typename T> |
| void ASTDeclReader::mergeMergeable(Mergeable<T> *D) { |
| // If modules are not available, there is no reason to perform this merge. |
| if (!Reader.getContext().getLangOpts().Modules) |
| return; |
| |
| // ODR-based merging is only performed in C++. In C, identically-named things |
| // in different translation units are not redeclarations (but may still have |
| // compatible types). |
| if (!Reader.getContext().getLangOpts().CPlusPlus) |
| return; |
| |
| if (FindExistingResult ExistingRes = findExisting(static_cast<T*>(D))) |
| if (T *Existing = ExistingRes) |
| Reader.Context.setPrimaryMergedDecl(static_cast<T*>(D), |
| Existing->getCanonicalDecl()); |
| } |
| |
| void ASTDeclReader::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) { |
| VisitDecl(D); |
| unsigned NumVars = D->varlist_size(); |
| SmallVector<Expr *, 16> Vars; |
| Vars.reserve(NumVars); |
| for (unsigned i = 0; i != NumVars; ++i) { |
| Vars.push_back(Reader.ReadExpr(F)); |
| } |
| D->setVars(Vars); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Attribute Reading |
| //===----------------------------------------------------------------------===// |
| |
| /// \brief Reads attributes from the current stream position. |
| void ASTReader::ReadAttributes(ModuleFile &F, AttrVec &Attrs, |
| const RecordData &Record, unsigned &Idx) { |
| for (unsigned i = 0, e = Record[Idx++]; i != e; ++i) { |
| Attr *New = 0; |
| attr::Kind Kind = (attr::Kind)Record[Idx++]; |
| SourceRange Range = ReadSourceRange(F, Record, Idx); |
| |
| #include "clang/Serialization/AttrPCHRead.inc" |
| |
| assert(New && "Unable to decode attribute?"); |
| Attrs.push_back(New); |
| } |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // ASTReader Implementation |
| //===----------------------------------------------------------------------===// |
| |
| /// \brief Note that we have loaded the declaration with the given |
| /// Index. |
| /// |
| /// This routine notes that this declaration has already been loaded, |
| /// so that future GetDecl calls will return this declaration rather |
| /// than trying to load a new declaration. |
| inline void ASTReader::LoadedDecl(unsigned Index, Decl *D) { |
| assert(!DeclsLoaded[Index] && "Decl loaded twice?"); |
| DeclsLoaded[Index] = D; |
| } |
| |
| |
| /// \brief Determine whether the consumer will be interested in seeing |
| /// this declaration (via HandleTopLevelDecl). |
| /// |
| /// This routine should return true for anything that might affect |
| /// code generation, e.g., inline function definitions, Objective-C |
| /// declarations with metadata, etc. |
| static bool isConsumerInterestedIn(Decl *D, bool HasBody) { |
| // An ObjCMethodDecl is never considered as "interesting" because its |
| // implementation container always is. |
| |
| if (isa<FileScopeAsmDecl>(D) || |
| isa<ObjCProtocolDecl>(D) || |
| isa<ObjCImplDecl>(D)) |
| return true; |
| if (VarDecl *Var = dyn_cast<VarDecl>(D)) |
| return Var->isFileVarDecl() && |
| Var->isThisDeclarationADefinition() == VarDecl::Definition; |
| if (FunctionDecl *Func = dyn_cast<FunctionDecl>(D)) |
| return Func->doesThisDeclarationHaveABody() || HasBody; |
| |
| return false; |
| } |
| |
| /// \brief Get the correct cursor and offset for loading a declaration. |
| ASTReader::RecordLocation |
| ASTReader::DeclCursorForID(DeclID ID, unsigned &RawLocation) { |
| // See if there's an override. |
| DeclReplacementMap::iterator It = ReplacedDecls.find(ID); |
| if (It != ReplacedDecls.end()) { |
| RawLocation = It->second.RawLoc; |
| return RecordLocation(It->second.Mod, It->second.Offset); |
| } |
| |
| GlobalDeclMapType::iterator I = GlobalDeclMap.find(ID); |
| assert(I != GlobalDeclMap.end() && "Corrupted global declaration map"); |
| ModuleFile *M = I->second; |
| const DeclOffset & |
| DOffs = M->DeclOffsets[ID - M->BaseDeclID - NUM_PREDEF_DECL_IDS]; |
| RawLocation = DOffs.Loc; |
| return RecordLocation(M, DOffs.BitOffset); |
| } |
| |
| ASTReader::RecordLocation ASTReader::getLocalBitOffset(uint64_t GlobalOffset) { |
| ContinuousRangeMap<uint64_t, ModuleFile*, 4>::iterator I |
| = GlobalBitOffsetsMap.find(GlobalOffset); |
| |
| assert(I != GlobalBitOffsetsMap.end() && "Corrupted global bit offsets map"); |
| return RecordLocation(I->second, GlobalOffset - I->second->GlobalBitOffset); |
| } |
| |
| uint64_t ASTReader::getGlobalBitOffset(ModuleFile &M, uint32_t LocalOffset) { |
| return LocalOffset + M.GlobalBitOffset; |
| } |
| |
| static bool isSameTemplateParameterList(const TemplateParameterList *X, |
| const TemplateParameterList *Y); |
| |
| /// \brief Determine whether two template parameters are similar enough |
| /// that they may be used in declarations of the same template. |
| static bool isSameTemplateParameter(const NamedDecl *X, |
| const NamedDecl *Y) { |
| if (X->getKind() != Y->getKind()) |
| return false; |
| |
| if (const TemplateTypeParmDecl *TX = dyn_cast<TemplateTypeParmDecl>(X)) { |
| const TemplateTypeParmDecl *TY = cast<TemplateTypeParmDecl>(Y); |
| return TX->isParameterPack() == TY->isParameterPack(); |
| } |
| |
| if (const NonTypeTemplateParmDecl *TX = dyn_cast<NonTypeTemplateParmDecl>(X)) { |
| const NonTypeTemplateParmDecl *TY = cast<NonTypeTemplateParmDecl>(Y); |
| return TX->isParameterPack() == TY->isParameterPack() && |
| TX->getASTContext().hasSameType(TX->getType(), TY->getType()); |
| } |
| |
| const TemplateTemplateParmDecl *TX = cast<TemplateTemplateParmDecl>(X); |
| const TemplateTemplateParmDecl *TY = cast<TemplateTemplateParmDecl>(Y); |
| return TX->isParameterPack() == TY->isParameterPack() && |
| isSameTemplateParameterList(TX->getTemplateParameters(), |
| TY->getTemplateParameters()); |
| } |
| |
| /// \brief Determine whether two template parameter lists are similar enough |
| /// that they may be used in declarations of the same template. |
| static bool isSameTemplateParameterList(const TemplateParameterList *X, |
| const TemplateParameterList *Y) { |
| if (X->size() != Y->size()) |
| return false; |
| |
| for (unsigned I = 0, N = X->size(); I != N; ++I) |
| if (!isSameTemplateParameter(X->getParam(I), Y->getParam(I))) |
| return false; |
| |
| return true; |
| } |
| |
| /// \brief Determine whether the two declarations refer to the same entity. |
| static bool isSameEntity(NamedDecl *X, NamedDecl *Y) { |
| assert(X->getDeclName() == Y->getDeclName() && "Declaration name mismatch!"); |
| |
| if (X == Y) |
| return true; |
| |
| // Must be in the same context. |
| if (!X->getDeclContext()->getRedeclContext()->Equals( |
| Y->getDeclContext()->getRedeclContext())) |
| return false; |
| |
| // Two typedefs refer to the same entity if they have the same underlying |
| // type. |
| if (TypedefNameDecl *TypedefX = dyn_cast<TypedefNameDecl>(X)) |
| if (TypedefNameDecl *TypedefY = dyn_cast<TypedefNameDecl>(Y)) |
| return X->getASTContext().hasSameType(TypedefX->getUnderlyingType(), |
| TypedefY->getUnderlyingType()); |
| |
| // Must have the same kind. |
| if (X->getKind() != Y->getKind()) |
| return false; |
| |
| // Objective-C classes and protocols with the same name always match. |
| if (isa<ObjCInterfaceDecl>(X) || isa<ObjCProtocolDecl>(X)) |
| return true; |
| |
| if (isa<ClassTemplateSpecializationDecl>(X)) { |
| // No need to handle these here: we merge them when adding them to the |
| // template. |
| return false; |
| } |
| |
| // Compatible tags match. |
| if (TagDecl *TagX = dyn_cast<TagDecl>(X)) { |
| TagDecl *TagY = cast<TagDecl>(Y); |
| return (TagX->getTagKind() == TagY->getTagKind()) || |
| ((TagX->getTagKind() == TTK_Struct || TagX->getTagKind() == TTK_Class || |
| TagX->getTagKind() == TTK_Interface) && |
| (TagY->getTagKind() == TTK_Struct || TagY->getTagKind() == TTK_Class || |
| TagY->getTagKind() == TTK_Interface)); |
| } |
| |
| // Functions with the same type and linkage match. |
| // FIXME: This needs to cope with function template specializations, |
| // merging of prototyped/non-prototyped functions, etc. |
| if (FunctionDecl *FuncX = dyn_cast<FunctionDecl>(X)) { |
| FunctionDecl *FuncY = cast<FunctionDecl>(Y); |
| return (FuncX->getLinkageInternal() == FuncY->getLinkageInternal()) && |
| FuncX->getASTContext().hasSameType(FuncX->getType(), FuncY->getType()); |
| } |
| |
| // Variables with the same type and linkage match. |
| if (VarDecl *VarX = dyn_cast<VarDecl>(X)) { |
| VarDecl *VarY = cast<VarDecl>(Y); |
| return (VarX->getLinkageInternal() == VarY->getLinkageInternal()) && |
| VarX->getASTContext().hasSameType(VarX->getType(), VarY->getType()); |
| } |
| |
| // Namespaces with the same name and inlinedness match. |
| if (NamespaceDecl *NamespaceX = dyn_cast<NamespaceDecl>(X)) { |
| NamespaceDecl *NamespaceY = cast<NamespaceDecl>(Y); |
| return NamespaceX->isInline() == NamespaceY->isInline(); |
| } |
| |
| // Identical template names and kinds match if their template parameter lists |
| // and patterns match. |
| if (TemplateDecl *TemplateX = dyn_cast<TemplateDecl>(X)) { |
| TemplateDecl *TemplateY = cast<TemplateDecl>(Y); |
| return isSameEntity(TemplateX->getTemplatedDecl(), |
| TemplateY->getTemplatedDecl()) && |
| isSameTemplateParameterList(TemplateX->getTemplateParameters(), |
| TemplateY->getTemplateParameters()); |
| } |
| |
| // Fields with the same name and the same type match. |
| if (FieldDecl *FDX = dyn_cast<FieldDecl>(X)) { |
| FieldDecl *FDY = cast<FieldDecl>(Y); |
| // FIXME: Diagnose if the types don't match. More generally, diagnose if we |
| // get a declaration in a class definition that isn't in the canonical class |
| // definition. |
| // FIXME: Also check the bitwidth is odr-equivalent, if any. |
| return X->getASTContext().hasSameType(FDX->getType(), FDY->getType()); |
| } |
| |
| // Enumerators with the same name match. |
| if (isa<EnumConstantDecl>(X)) |
| // FIXME: Also check the value is odr-equivalent. |
| return true; |
| |
| // FIXME: Many other cases to implement. |
| return false; |
| } |
| |
| /// Find the context in which we should search for previous declarations when |
| /// looking for declarations to merge. |
| static DeclContext *getPrimaryContextForMerging(DeclContext *DC) { |
| if (NamespaceDecl *ND = dyn_cast<NamespaceDecl>(DC)) |
| return ND->getOriginalNamespace(); |
| |
| if (CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(DC)) |
| return RD->getDefinition(); |
| |
| if (EnumDecl *ED = dyn_cast<EnumDecl>(DC)) |
| return ED->getASTContext().getLangOpts().CPlusPlus? ED->getDefinition() : 0; |
| |
| return 0; |
| } |
| |
| ASTDeclReader::FindExistingResult::~FindExistingResult() { |
| if (!AddResult || Existing) |
| return; |
| |
| DeclContext *DC = New->getDeclContext()->getRedeclContext(); |
| if (DC->isTranslationUnit() && Reader.SemaObj) { |
| Reader.SemaObj->IdResolver.tryAddTopLevelDecl(New, New->getDeclName()); |
| } else if (DeclContext *MergeDC = getPrimaryContextForMerging(DC)) { |
| // Add the declaration to its redeclaration context so later merging |
| // lookups will find it. |
| MergeDC->makeDeclVisibleInContextImpl(New, /*Internal*/true); |
| } |
| } |
| |
| ASTDeclReader::FindExistingResult ASTDeclReader::findExisting(NamedDecl *D) { |
| DeclarationName Name = D->getDeclName(); |
| if (!Name) { |
| // Don't bother trying to find unnamed declarations. |
| FindExistingResult Result(Reader, D, /*Existing=*/0); |
| Result.suppress(); |
| return Result; |
| } |
| |
| // FIXME: Bail out for non-canonical declarations. We will have performed any |
| // necessary merging already. |
| |
| DeclContext *DC = D->getDeclContext()->getRedeclContext(); |
| if (DC->isTranslationUnit() && Reader.SemaObj) { |
| IdentifierResolver &IdResolver = Reader.SemaObj->IdResolver; |
| |
| // Temporarily consider the identifier to be up-to-date. We don't want to |
| // cause additional lookups here. |
| class UpToDateIdentifierRAII { |
| IdentifierInfo *II; |
| bool WasOutToDate; |
| |
| public: |
| explicit UpToDateIdentifierRAII(IdentifierInfo *II) |
| : II(II), WasOutToDate(false) |
| { |
| if (II) { |
| WasOutToDate = II->isOutOfDate(); |
| if (WasOutToDate) |
| II->setOutOfDate(false); |
| } |
| } |
| |
| ~UpToDateIdentifierRAII() { |
| if (WasOutToDate) |
| II->setOutOfDate(true); |
| } |
| } UpToDate(Name.getAsIdentifierInfo()); |
| |
| for (IdentifierResolver::iterator I = IdResolver.begin(Name), |
| IEnd = IdResolver.end(); |
| I != IEnd; ++I) { |
| if (isSameEntity(*I, D)) |
| return FindExistingResult(Reader, D, *I); |
| } |
| } else if (DeclContext *MergeDC = getPrimaryContextForMerging(DC)) { |
| DeclContext::lookup_result R = MergeDC->noload_lookup(Name); |
| for (DeclContext::lookup_iterator I = R.begin(), E = R.end(); I != E; ++I) { |
| if (isSameEntity(*I, D)) |
| return FindExistingResult(Reader, D, *I); |
| } |
| } else { |
| // Not in a mergeable context. |
| return FindExistingResult(Reader); |
| } |
| |
| // If this declaration is from a merged context, make a note that we need to |
| // check that the canonical definition of that context contains the decl. |
| if (Reader.MergedDeclContexts.count(D->getLexicalDeclContext())) |
| Reader.PendingOdrMergeChecks.push_back(D); |
| |
| return FindExistingResult(Reader, D, /*Existing=*/0); |
| } |
| |
| void ASTDeclReader::attachPreviousDecl(Decl *D, Decl *previous) { |
| assert(D && previous); |
| if (TagDecl *TD = dyn_cast<TagDecl>(D)) { |
| TD->RedeclLink.setNext(cast<TagDecl>(previous)); |
| } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
| FD->RedeclLink.setNext(cast<FunctionDecl>(previous)); |
| } else if (VarDecl *VD = dyn_cast<VarDecl>(D)) { |
| VD->RedeclLink.setNext(cast<VarDecl>(previous)); |
| } else if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { |
| TD->RedeclLink.setNext(cast<TypedefNameDecl>(previous)); |
| } else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) { |
| ID->RedeclLink.setNext(cast<ObjCInterfaceDecl>(previous)); |
| } else if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D)) { |
| PD->RedeclLink.setNext(cast<ObjCProtocolDecl>(previous)); |
| } else if (NamespaceDecl *ND = dyn_cast<NamespaceDecl>(D)) { |
| ND->RedeclLink.setNext(cast<NamespaceDecl>(previous)); |
| } else { |
| RedeclarableTemplateDecl *TD = cast<RedeclarableTemplateDecl>(D); |
| TD->RedeclLink.setNext(cast<RedeclarableTemplateDecl>(previous)); |
| } |
| |
| // If the declaration was visible in one module, a redeclaration of it in |
| // another module remains visible even if it wouldn't be visible by itself. |
| // |
| // FIXME: In this case, the declaration should only be visible if a module |
| // that makes it visible has been imported. |
| D->IdentifierNamespace |= |
| previous->IdentifierNamespace & |
| (Decl::IDNS_Ordinary | Decl::IDNS_Tag | Decl::IDNS_Type); |
| } |
| |
| void ASTDeclReader::attachLatestDecl(Decl *D, Decl *Latest) { |
| assert(D && Latest); |
| if (TagDecl *TD = dyn_cast<TagDecl>(D)) { |
| TD->RedeclLink |
| = Redeclarable<TagDecl>::LatestDeclLink(cast<TagDecl>(Latest)); |
| } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
| FD->RedeclLink |
| = Redeclarable<FunctionDecl>::LatestDeclLink(cast<FunctionDecl>(Latest)); |
| } else if (VarDecl *VD = dyn_cast<VarDecl>(D)) { |
| VD->RedeclLink |
| = Redeclarable<VarDecl>::LatestDeclLink(cast<VarDecl>(Latest)); |
| } else if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { |
| TD->RedeclLink |
| = Redeclarable<TypedefNameDecl>::LatestDeclLink( |
| cast<TypedefNameDecl>(Latest)); |
| } else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) { |
| ID->RedeclLink |
| = Redeclarable<ObjCInterfaceDecl>::LatestDeclLink( |
| cast<ObjCInterfaceDecl>(Latest)); |
| } else if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D)) { |
| PD->RedeclLink |
| = Redeclarable<ObjCProtocolDecl>::LatestDeclLink( |
| cast<ObjCProtocolDecl>(Latest)); |
| } else if (NamespaceDecl *ND = dyn_cast<NamespaceDecl>(D)) { |
| ND->RedeclLink |
| = Redeclarable<NamespaceDecl>::LatestDeclLink( |
| cast<NamespaceDecl>(Latest)); |
| } else { |
| RedeclarableTemplateDecl *TD = cast<RedeclarableTemplateDecl>(D); |
| TD->RedeclLink |
| = Redeclarable<RedeclarableTemplateDecl>::LatestDeclLink( |
| cast<RedeclarableTemplateDecl>(Latest)); |
| } |
| } |
| |
| ASTReader::MergedDeclsMap::iterator |
| ASTReader::combineStoredMergedDecls(Decl *Canon, GlobalDeclID CanonID) { |
| // If we don't have any stored merged declarations, just look in the |
| // merged declarations set. |
| StoredMergedDeclsMap::iterator StoredPos = StoredMergedDecls.find(CanonID); |
| if (StoredPos == StoredMergedDecls.end()) |
| return MergedDecls.find(Canon); |
| |
| // Append the stored merged declarations to the merged declarations set. |
| MergedDeclsMap::iterator Pos = MergedDecls.find(Canon); |
| if (Pos == MergedDecls.end()) |
| Pos = MergedDecls.insert(std::make_pair(Canon, |
| SmallVector<DeclID, 2>())).first; |
| Pos->second.append(StoredPos->second.begin(), StoredPos->second.end()); |
| StoredMergedDecls.erase(StoredPos); |
| |
| // Sort and uniquify the set of merged declarations. |
| llvm::array_pod_sort(Pos->second.begin(), Pos->second.end()); |
| Pos->second.erase(std::unique(Pos->second.begin(), Pos->second.end()), |
| Pos->second.end()); |
| return Pos; |
| } |
| |
| /// \brief Read the declaration at the given offset from the AST file. |
| Decl *ASTReader::ReadDeclRecord(DeclID ID) { |
| unsigned Index = ID - NUM_PREDEF_DECL_IDS; |
| unsigned RawLocation = 0; |
| RecordLocation Loc = DeclCursorForID(ID, RawLocation); |
| llvm::BitstreamCursor &DeclsCursor = Loc.F->DeclsCursor; |
| // Keep track of where we are in the stream, then jump back there |
| // after reading this declaration. |
| SavedStreamPosition SavedPosition(DeclsCursor); |
| |
| ReadingKindTracker ReadingKind(Read_Decl, *this); |
| |
| // Note that we are loading a declaration record. |
| Deserializing ADecl(this); |
| |
| DeclsCursor.JumpToBit(Loc.Offset); |
| RecordData Record; |
| unsigned Code = DeclsCursor.ReadCode(); |
| unsigned Idx = 0; |
| ASTDeclReader Reader(*this, *Loc.F, ID, RawLocation, Record,Idx); |
| |
| Decl *D = 0; |
| switch ((DeclCode)DeclsCursor.readRecord(Code, Record)) { |
| case DECL_CONTEXT_LEXICAL: |
| case DECL_CONTEXT_VISIBLE: |
| llvm_unreachable("Record cannot be de-serialized with ReadDeclRecord"); |
| case DECL_TYPEDEF: |
| D = TypedefDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_TYPEALIAS: |
| D = TypeAliasDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_ENUM: |
| D = EnumDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_RECORD: |
| D = RecordDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_ENUM_CONSTANT: |
| D = EnumConstantDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_FUNCTION: |
| D = FunctionDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_LINKAGE_SPEC: |
| D = LinkageSpecDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_LABEL: |
| D = LabelDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_NAMESPACE: |
| D = NamespaceDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_NAMESPACE_ALIAS: |
| D = NamespaceAliasDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_USING: |
| D = UsingDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_USING_SHADOW: |
| D = UsingShadowDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_USING_DIRECTIVE: |
| D = UsingDirectiveDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_UNRESOLVED_USING_VALUE: |
| D = UnresolvedUsingValueDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_UNRESOLVED_USING_TYPENAME: |
| D = UnresolvedUsingTypenameDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_CXX_RECORD: |
| D = CXXRecordDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_CXX_METHOD: |
| D = CXXMethodDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_CXX_CONSTRUCTOR: |
| D = CXXConstructorDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_CXX_DESTRUCTOR: |
| D = CXXDestructorDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_CXX_CONVERSION: |
| D = CXXConversionDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_ACCESS_SPEC: |
| D = AccessSpecDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_FRIEND: |
| D = FriendDecl::CreateDeserialized(Context, ID, Record[Idx++]); |
| break; |
| case DECL_FRIEND_TEMPLATE: |
| D = FriendTemplateDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_CLASS_TEMPLATE: |
| D = ClassTemplateDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_CLASS_TEMPLATE_SPECIALIZATION: |
| D = ClassTemplateSpecializationDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION: |
| D = ClassTemplatePartialSpecializationDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_VAR_TEMPLATE: |
| D = VarTemplateDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_VAR_TEMPLATE_SPECIALIZATION: |
| D = VarTemplateSpecializationDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION: |
| D = VarTemplatePartialSpecializationDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION: |
| D = ClassScopeFunctionSpecializationDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_FUNCTION_TEMPLATE: |
| D = FunctionTemplateDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_TEMPLATE_TYPE_PARM: |
| D = TemplateTypeParmDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_NON_TYPE_TEMPLATE_PARM: |
| D = NonTypeTemplateParmDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK: |
| D = NonTypeTemplateParmDecl::CreateDeserialized(Context, ID, Record[Idx++]); |
| break; |
| case DECL_TEMPLATE_TEMPLATE_PARM: |
| D = TemplateTemplateParmDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK: |
| D = TemplateTemplateParmDecl::CreateDeserialized(Context, ID, |
| Record[Idx++]); |
| break; |
| case DECL_TYPE_ALIAS_TEMPLATE: |
| D = TypeAliasTemplateDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_STATIC_ASSERT: |
| D = StaticAssertDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_METHOD: |
| D = ObjCMethodDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_INTERFACE: |
| D = ObjCInterfaceDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_IVAR: |
| D = ObjCIvarDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_PROTOCOL: |
| D = ObjCProtocolDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_AT_DEFS_FIELD: |
| D = ObjCAtDefsFieldDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_CATEGORY: |
| D = ObjCCategoryDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_CATEGORY_IMPL: |
| D = ObjCCategoryImplDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_IMPLEMENTATION: |
| D = ObjCImplementationDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_COMPATIBLE_ALIAS: |
| D = ObjCCompatibleAliasDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_PROPERTY: |
| D = ObjCPropertyDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_OBJC_PROPERTY_IMPL: |
| D = ObjCPropertyImplDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_FIELD: |
| D = FieldDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_INDIRECTFIELD: |
| D = IndirectFieldDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_VAR: |
| D = VarDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_IMPLICIT_PARAM: |
| D = ImplicitParamDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_PARM_VAR: |
| D = ParmVarDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_FILE_SCOPE_ASM: |
| D = FileScopeAsmDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_BLOCK: |
| D = BlockDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_MS_PROPERTY: |
| D = MSPropertyDecl::CreateDeserialized(Context, ID); |
| break; |
| case DECL_CAPTURED: |
| D = CapturedDecl::CreateDeserialized(Context, ID, Record[Idx++]); |
| break; |
| case DECL_CXX_BASE_SPECIFIERS: |
| Error("attempt to read a C++ base-specifier record as a declaration"); |
| return 0; |
| case DECL_IMPORT: |
| // Note: last entry of the ImportDecl record is the number of stored source |
| // locations. |
| D = ImportDecl::CreateDeserialized(Context, ID, Record.back()); |
| break; |
| case DECL_OMP_THREADPRIVATE: |
| D = OMPThreadPrivateDecl::CreateDeserialized(Context, ID, Record[Idx++]); |
| break; |
| case DECL_EMPTY: |
| D = EmptyDecl::CreateDeserialized(Context, ID); |
| break; |
| } |
| |
| assert(D && "Unknown declaration reading AST file"); |
| LoadedDecl(Index, D); |
| // Set the DeclContext before doing any deserialization, to make sure internal |
| // calls to Decl::getASTContext() by Decl's methods will find the |
| // TranslationUnitDecl without crashing. |
| D->setDeclContext(Context.getTranslationUnitDecl()); |
| Reader.Visit(D); |
| |
| // If this declaration is also a declaration context, get the |
| // offsets for its tables of lexical and visible declarations. |
| if (DeclContext *DC = dyn_cast<DeclContext>(D)) { |
| // FIXME: This should really be |
| // DeclContext *LookupDC = DC->getPrimaryContext(); |
| // but that can walk the redeclaration chain, which might not work yet. |
| DeclContext *LookupDC = DC; |
| if (isa<NamespaceDecl>(DC)) |
| LookupDC = DC->getPrimaryContext(); |
| std::pair<uint64_t, uint64_t> Offsets = Reader.VisitDeclContext(DC); |
| if (Offsets.first || Offsets.second) { |
| if (Offsets.first != 0) |
| DC->setHasExternalLexicalStorage(true); |
| if (Offsets.second != 0) |
| LookupDC->setHasExternalVisibleStorage(true); |
| if (ReadDeclContextStorage(*Loc.F, DeclsCursor, Offsets, |
| Loc.F->DeclContextInfos[DC])) |
| return 0; |
| } |
| |
| // Now add the pending visible updates for this decl context, if it has any. |
| DeclContextVisibleUpdatesPending::iterator I = |
| PendingVisibleUpdates.find(ID); |
| if (I != PendingVisibleUpdates.end()) { |
| // There are updates. This means the context has external visible |
| // storage, even if the original stored version didn't. |
| LookupDC->setHasExternalVisibleStorage(true); |
| DeclContextVisibleUpdates &U = I->second; |
| for (DeclContextVisibleUpdates::iterator UI = U.begin(), UE = U.end(); |
| UI != UE; ++UI) { |
| DeclContextInfo &Info = UI->second->DeclContextInfos[DC]; |
| delete Info.NameLookupTableData; |
| Info.NameLookupTableData = UI->first; |
| } |
| PendingVisibleUpdates.erase(I); |
| } |
| } |
| assert(Idx == Record.size()); |
| |
| // Load any relevant update records. |
| loadDeclUpdateRecords(ID, D); |
| |
| // Load the categories after recursive loading is finished. |
| if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(D)) |
| if (Class->isThisDeclarationADefinition()) |
| loadObjCCategories(ID, Class); |
| |
| // If we have deserialized a declaration that has a definition the |
| // AST consumer might need to know about, queue it. |
| // We don't pass it to the consumer immediately because we may be in recursive |
| // loading, and some declarations may still be initializing. |
| if (isConsumerInterestedIn(D, Reader.hasPendingBody())) |
| InterestingDecls.push_back(D); |
| |
| return D; |
| } |
| |
| void ASTReader::loadDeclUpdateRecords(serialization::DeclID ID, Decl *D) { |
| // The declaration may have been modified by files later in the chain. |
| // If this is the case, read the record containing the updates from each file |
| // and pass it to ASTDeclReader to make the modifications. |
| DeclUpdateOffsetsMap::iterator UpdI = DeclUpdateOffsets.find(ID); |
| if (UpdI != DeclUpdateOffsets.end()) { |
| FileOffsetsTy &UpdateOffsets = UpdI->second; |
| for (FileOffsetsTy::iterator |
| I = UpdateOffsets.begin(), E = UpdateOffsets.end(); I != E; ++I) { |
| ModuleFile *F = I->first; |
| uint64_t Offset = I->second; |
| llvm::BitstreamCursor &Cursor = F->DeclsCursor; |
| SavedStreamPosition SavedPosition(Cursor); |
| Cursor.JumpToBit(Offset); |
| RecordData Record; |
| unsigned Code = Cursor.ReadCode(); |
| unsigned RecCode = Cursor.readRecord(Code, Record); |
| (void)RecCode; |
| assert(RecCode == DECL_UPDATES && "Expected DECL_UPDATES record!"); |
| |
| unsigned Idx = 0; |
| ASTDeclReader Reader(*this, *F, ID, 0, Record, Idx); |
| Reader.UpdateDecl(D, *F, Record); |
| } |
| } |
| } |
| |
| namespace { |
| struct CompareLocalRedeclarationsInfoToID { |
| bool operator()(const LocalRedeclarationsInfo &X, DeclID Y) { |
| return X.FirstID < Y; |
| } |
| |
| bool operator()(DeclID X, const LocalRedeclarationsInfo &Y) { |
| return X < Y.FirstID; |
| } |
| |
| bool operator()(const LocalRedeclarationsInfo &X, |
| const LocalRedeclarationsInfo &Y) { |
| return X.FirstID < Y.FirstID; |
| } |
| bool operator()(DeclID X, DeclID Y) { |
| return X < Y; |
| } |
| }; |
| |
| /// \brief Module visitor class that finds all of the redeclarations of a |
| /// |
| class RedeclChainVisitor { |
| ASTReader &Reader; |
| SmallVectorImpl<DeclID> &SearchDecls; |
| llvm::SmallPtrSet<Decl *, 16> &Deserialized; |
| GlobalDeclID CanonID; |
| SmallVector<Decl *, 4> Chain; |
| |
| public: |
| RedeclChainVisitor(ASTReader &Reader, SmallVectorImpl<DeclID> &SearchDecls, |
| llvm::SmallPtrSet<Decl *, 16> &Deserialized, |
| GlobalDeclID CanonID) |
| : Reader(Reader), SearchDecls(SearchDecls), Deserialized(Deserialized), |
| CanonID(CanonID) { |
| for (unsigned I = 0, N = SearchDecls.size(); I != N; ++I) |
| addToChain(Reader.GetDecl(SearchDecls[I])); |
| } |
| |
| static bool visit(ModuleFile &M, bool Preorder, void *UserData) { |
| if (Preorder) |
| return false; |
| |
| return static_cast<RedeclChainVisitor *>(UserData)->visit(M); |
| } |
| |
| void addToChain(Decl *D) { |
| if (!D) |
| return; |
| |
| if (Deserialized.erase(D)) |
| Chain.push_back(D); |
| } |
| |
| void searchForID(ModuleFile &M, GlobalDeclID GlobalID) { |
| // Map global ID of the first declaration down to the local ID |
| // used in this module file. |
| DeclID ID = Reader.mapGlobalIDToModuleFileGlobalID(M, GlobalID); |
| if (!ID) |
| return; |
| |
| // Perform a binary search to find the local redeclarations for this |
| // declaration (if any). |
| const LocalRedeclarationsInfo *Result |
| = std::lower_bound(M.RedeclarationsMap, |
| M.RedeclarationsMap + M.LocalNumRedeclarationsInMap, |
| ID, CompareLocalRedeclarationsInfoToID()); |
| if (Result == M.RedeclarationsMap + M.LocalNumRedeclarationsInMap || |
| Result->FirstID != ID) { |
| // If we have a previously-canonical singleton declaration that was |
| // merged into another redeclaration chain, create a trivial chain |
| // for this single declaration so that it will get wired into the |
| // complete redeclaration chain. |
| if (GlobalID != CanonID && |
| GlobalID - NUM_PREDEF_DECL_IDS >= M.BaseDeclID && |
| GlobalID - NUM_PREDEF_DECL_IDS < M.BaseDeclID + M.LocalNumDecls) { |
| addToChain(Reader.GetDecl(GlobalID)); |
| } |
| |
| return; |
| } |
| |
| // Dig out all of the redeclarations. |
| unsigned Offset = Result->Offset; |
| unsigned N = M.RedeclarationChains[Offset]; |
| M.RedeclarationChains[Offset++] = 0; // Don't try to deserialize again |
| for (unsigned I = 0; I != N; ++I) |
| addToChain(Reader.GetLocalDecl(M, M.RedeclarationChains[Offset++])); |
| } |
| |
| bool visit(ModuleFile &M) { |
| // Visit each of the declarations. |
| for (unsigned I = 0, N = SearchDecls.size(); I != N; ++I) |
| searchForID(M, SearchDecls[I]); |
| return false; |
| } |
| |
| ArrayRef<Decl *> getChain() const { |
| return Chain; |
| } |
| }; |
| } |
| |
| void ASTReader::loadPendingDeclChain(serialization::GlobalDeclID ID) { |
| Decl *D = GetDecl(ID); |
| Decl *CanonDecl = D->getCanonicalDecl(); |
| |
| // Determine the set of declaration IDs we'll be searching for. |
| SmallVector<DeclID, 1> SearchDecls; |
| GlobalDeclID CanonID = 0; |
| if (D == CanonDecl) { |
| SearchDecls.push_back(ID); // Always first. |
| CanonID = ID; |
| } |
| MergedDeclsMap::iterator MergedPos = combineStoredMergedDecls(CanonDecl, ID); |
| if (MergedPos != MergedDecls.end()) |
| SearchDecls.append(MergedPos->second.begin(), MergedPos->second.end()); |
| |
| // Build up the list of redeclarations. |
| RedeclChainVisitor Visitor(*this, SearchDecls, RedeclsDeserialized, CanonID); |
| ModuleMgr.visitDepthFirst(&RedeclChainVisitor::visit, &Visitor); |
| |
| // Retrieve the chains. |
| ArrayRef<Decl *> Chain = Visitor.getChain(); |
| if (Chain.empty()) |
| return; |
| |
| // Hook up the chains. |
| Decl *MostRecent = CanonDecl->getMostRecentDecl(); |
| for (unsigned I = 0, N = Chain.size(); I != N; ++I) { |
| if (Chain[I] == CanonDecl) |
| continue; |
| |
| ASTDeclReader::attachPreviousDecl(Chain[I], MostRecent); |
| MostRecent = Chain[I]; |
| } |
| |
| ASTDeclReader::attachLatestDecl(CanonDecl, MostRecent); |
| } |
| |
| namespace { |
| struct CompareObjCCategoriesInfo { |
| bool operator()(const ObjCCategoriesInfo &X, DeclID Y) { |
| return X.DefinitionID < Y; |
| } |
| |
| bool operator()(DeclID X, const ObjCCategoriesInfo &Y) { |
| return X < Y.DefinitionID; |
| } |
| |
| bool operator()(const ObjCCategoriesInfo &X, |
| const ObjCCategoriesInfo &Y) { |
| return X.DefinitionID < Y.DefinitionID; |
| } |
| bool operator()(DeclID X, DeclID Y) { |
| return X < Y; |
| } |
| }; |
| |
| /// \brief Given an ObjC interface, goes through the modules and links to the |
| /// interface all the categories for it. |
| class ObjCCategoriesVisitor { |
| ASTReader &Reader; |
| serialization::GlobalDeclID InterfaceID; |
| ObjCInterfaceDecl *Interface; |
| llvm::SmallPtrSet<ObjCCategoryDecl *, 16> &Deserialized; |
| unsigned PreviousGeneration; |
| ObjCCategoryDecl *Tail; |
| llvm::DenseMap<DeclarationName, ObjCCategoryDecl *> NameCategoryMap; |
| |
| void add(ObjCCategoryDecl *Cat) { |
| // Only process each category once. |
| if (!Deserialized.erase(Cat)) |
| return; |
| |
| // Check for duplicate categories. |
| if (Cat->getDeclName()) { |
| ObjCCategoryDecl *&Existing = NameCategoryMap[Cat->getDeclName()]; |
| if (Existing && |
| Reader.getOwningModuleFile(Existing) |
| != Reader.getOwningModuleFile(Cat)) { |
| // FIXME: We should not warn for duplicates in diamond: |
| // |
| // MT // |
| // / \ // |
| // ML MR // |
| // \ / // |
| // MB // |
| // |
| // If there are duplicates in ML/MR, there will be warning when |
| // creating MB *and* when importing MB. We should not warn when |
| // importing. |
| Reader.Diag(Cat->getLocation(), diag::warn_dup_category_def) |
| << Interface->getDeclName() << Cat->getDeclName(); |
| Reader.Diag(Existing->getLocation(), diag::note_previous_definition); |
| } else if (!Existing) { |
| // Record this category. |
| Existing = Cat; |
| } |
| } |
| |
| // Add this category to the end of the chain. |
| if (Tail) |
| ASTDeclReader::setNextObjCCategory(Tail, Cat); |
| else |
| Interface->setCategoryListRaw(Cat); |
| Tail = Cat; |
| } |
| |
| public: |
| ObjCCategoriesVisitor(ASTReader &Reader, |
| serialization::GlobalDeclID InterfaceID, |
| ObjCInterfaceDecl *Interface, |
| llvm::SmallPtrSet<ObjCCategoryDecl *, 16> &Deserialized, |
| unsigned PreviousGeneration) |
| : Reader(Reader), InterfaceID(InterfaceID), Interface(Interface), |
| Deserialized(Deserialized), PreviousGeneration(PreviousGeneration), |
| Tail(0) |
| { |
| // Populate the name -> category map with the set of known categories. |
| for (ObjCInterfaceDecl::known_categories_iterator |
| Cat = Interface->known_categories_begin(), |
| CatEnd = Interface->known_categories_end(); |
| Cat != CatEnd; ++Cat) { |
| if (Cat->getDeclName()) |
| NameCategoryMap[Cat->getDeclName()] = *Cat; |
| |
| // Keep track of the tail of the category list. |
| Tail = *Cat; |
| } |
| } |
| |
| static bool visit(ModuleFile &M, void *UserData) { |
| return static_cast<ObjCCategoriesVisitor *>(UserData)->visit(M); |
| } |
| |
| bool visit(ModuleFile &M) { |
| // If we've loaded all of the category information we care about from |
| // this module file, we're done. |
| if (M.Generation <= PreviousGeneration) |
| return true; |
| |
| // Map global ID of the definition down to the local ID used in this |
| // module file. If there is no such mapping, we'll find nothing here |
| // (or in any module it imports). |
| DeclID LocalID = Reader.mapGlobalIDToModuleFileGlobalID(M, InterfaceID); |
| if (!LocalID) |
| return true; |
| |
| // Perform a binary search to find the local redeclarations for this |
| // declaration (if any). |
| const ObjCCategoriesInfo *Result |
| = std::lower_bound(M.ObjCCategoriesMap, |
| M.ObjCCategoriesMap + M.LocalNumObjCCategoriesInMap, |
| LocalID, CompareObjCCategoriesInfo()); |
| if (Result == M.ObjCCategoriesMap + M.LocalNumObjCCategoriesInMap || |
| Result->DefinitionID != LocalID) { |
| // We didn't find anything. If the class definition is in this module |
| // file, then the module files it depends on cannot have any categories, |
| // so suppress further lookup. |
| return Reader.isDeclIDFromModule(InterfaceID, M); |
| } |
| |
| // We found something. Dig out all of the categories. |
| unsigned Offset = Result->Offset; |
| unsigned N = M.ObjCCategories[Offset]; |
| M.ObjCCategories[Offset++] = 0; // Don't try to deserialize again |
| for (unsigned I = 0; I != N; ++I) |
| add(cast_or_null<ObjCCategoryDecl>( |
| Reader.GetLocalDecl(M, M.ObjCCategories[Offset++]))); |
| return true; |
| } |
| }; |
| } |
| |
| void ASTReader::loadObjCCategories(serialization::GlobalDeclID ID, |
| ObjCInterfaceDecl *D, |
| unsigned PreviousGeneration) { |
| ObjCCategoriesVisitor Visitor(*this, ID, D, CategoriesDeserialized, |
| PreviousGeneration); |
| ModuleMgr.visit(ObjCCategoriesVisitor::visit, &Visitor); |
| } |
| |
| void ASTDeclReader::UpdateDecl(Decl *D, ModuleFile &ModuleFile, |
| const RecordData &Record) { |
| unsigned Idx = 0; |
| while (Idx < Record.size()) { |
| switch ((DeclUpdateKind)Record[Idx++]) { |
| case UPD_CXX_ADDED_IMPLICIT_MEMBER: |
| cast<CXXRecordDecl>(D)->addedMember(Reader.ReadDecl(ModuleFile, Record, Idx)); |
| break; |
| |
| case UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION: |
| // It will be added to the template's specializations set when loaded. |
| (void)Reader.ReadDecl(ModuleFile, Record, Idx); |
| break; |
| |
| case UPD_CXX_ADDED_ANONYMOUS_NAMESPACE: { |
| NamespaceDecl *Anon |
| = Reader.ReadDeclAs<NamespaceDecl>(ModuleFile, Record, Idx); |
| |
| // Each module has its own anonymous namespace, which is disjoint from |
| // any other module's anonymous namespaces, so don't attach the anonymous |
| // namespace at all. |
| if (ModuleFile.Kind != MK_Module) { |
| if (TranslationUnitDecl *TU = dyn_cast<TranslationUnitDecl>(D)) |
| TU->setAnonymousNamespace(Anon); |
| else |
| cast<NamespaceDecl>(D)->setAnonymousNamespace(Anon); |
| } |
| break; |
| } |
| |
| case UPD_CXX_INSTANTIATED_STATIC_DATA_MEMBER: |
| cast<VarDecl>(D)->getMemberSpecializationInfo()->setPointOfInstantiation( |
| Reader.ReadSourceLocation(ModuleFile, Record, Idx)); |
| break; |
| |
| case UPD_CXX_DEDUCED_RETURN_TYPE: { |
| FunctionDecl *FD = cast<FunctionDecl>(D); |
| Reader.Context.adjustDeducedFunctionResultType( |
| FD, Reader.readType(ModuleFile, Record, Idx)); |
| break; |
| } |
| |
| case UPD_DECL_MARKED_USED: { |
| // FIXME: This doesn't send the right notifications if there are |
| // ASTMutationListeners other than an ASTWriter. |
| D->setIsUsed(true); |
| break; |
| } |
| } |
| } |
| } |