| //===--- PCHReaderDecl.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 PCHReader::ReadDeclRecord method, which is the |
| // entrypoint for loading a decl. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "clang/Frontend/PCHReader.h" |
| #include "clang/AST/ASTConsumer.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/AST/DeclVisitor.h" |
| #include "clang/AST/DeclGroup.h" |
| #include "clang/AST/Expr.h" |
| using namespace clang; |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Declaration deserialization |
| //===----------------------------------------------------------------------===// |
| |
| namespace { |
| class PCHDeclReader : public DeclVisitor<PCHDeclReader, void> { |
| PCHReader &Reader; |
| const PCHReader::RecordData &Record; |
| unsigned &Idx; |
| |
| public: |
| PCHDeclReader(PCHReader &Reader, const PCHReader::RecordData &Record, |
| unsigned &Idx) |
| : Reader(Reader), Record(Record), Idx(Idx) { } |
| |
| void VisitDecl(Decl *D); |
| void VisitTranslationUnitDecl(TranslationUnitDecl *TU); |
| void VisitNamedDecl(NamedDecl *ND); |
| void VisitTypeDecl(TypeDecl *TD); |
| void VisitTypedefDecl(TypedefDecl *TD); |
| void VisitTagDecl(TagDecl *TD); |
| void VisitEnumDecl(EnumDecl *ED); |
| void VisitRecordDecl(RecordDecl *RD); |
| void VisitValueDecl(ValueDecl *VD); |
| void VisitEnumConstantDecl(EnumConstantDecl *ECD); |
| void VisitDeclaratorDecl(DeclaratorDecl *DD); |
| void VisitFunctionDecl(FunctionDecl *FD); |
| void VisitFieldDecl(FieldDecl *FD); |
| void VisitVarDecl(VarDecl *VD); |
| void VisitImplicitParamDecl(ImplicitParamDecl *PD); |
| void VisitParmVarDecl(ParmVarDecl *PD); |
| void VisitFileScopeAsmDecl(FileScopeAsmDecl *AD); |
| void VisitBlockDecl(BlockDecl *BD); |
| std::pair<uint64_t, uint64_t> VisitDeclContext(DeclContext *DC); |
| 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 VisitObjCClassDecl(ObjCClassDecl *D); |
| void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *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 PCHDeclReader::VisitDecl(Decl *D) { |
| D->setDeclContext(cast_or_null<DeclContext>(Reader.GetDecl(Record[Idx++]))); |
| D->setLexicalDeclContext( |
| cast_or_null<DeclContext>(Reader.GetDecl(Record[Idx++]))); |
| D->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| D->setInvalidDecl(Record[Idx++]); |
| if (Record[Idx++]) |
| D->addAttr(Reader.ReadAttributes()); |
| D->setImplicit(Record[Idx++]); |
| D->setUsed(Record[Idx++]); |
| D->setAccess((AccessSpecifier)Record[Idx++]); |
| D->setPCHLevel(Record[Idx++] + 1); |
| } |
| |
| void PCHDeclReader::VisitTranslationUnitDecl(TranslationUnitDecl *TU) { |
| VisitDecl(TU); |
| } |
| |
| void PCHDeclReader::VisitNamedDecl(NamedDecl *ND) { |
| VisitDecl(ND); |
| ND->setDeclName(Reader.ReadDeclarationName(Record, Idx)); |
| } |
| |
| void PCHDeclReader::VisitTypeDecl(TypeDecl *TD) { |
| VisitNamedDecl(TD); |
| TD->setTypeForDecl(Reader.GetType(Record[Idx++]).getTypePtr()); |
| } |
| |
| void PCHDeclReader::VisitTypedefDecl(TypedefDecl *TD) { |
| // Note that we cannot use VisitTypeDecl here, because we need to |
| // set the underlying type of the typedef *before* we try to read |
| // the type associated with the TypedefDecl. |
| VisitNamedDecl(TD); |
| uint64_t TypeData = Record[Idx++]; |
| TD->setTypeDeclaratorInfo(Reader.GetDeclaratorInfo(Record, Idx)); |
| TD->setTypeForDecl(Reader.GetType(TypeData).getTypePtr()); |
| } |
| |
| void PCHDeclReader::VisitTagDecl(TagDecl *TD) { |
| VisitTypeDecl(TD); |
| TD->setPreviousDeclaration( |
| cast_or_null<TagDecl>(Reader.GetDecl(Record[Idx++]))); |
| TD->setTagKind((TagDecl::TagKind)Record[Idx++]); |
| TD->setDefinition(Record[Idx++]); |
| TD->setTypedefForAnonDecl( |
| cast_or_null<TypedefDecl>(Reader.GetDecl(Record[Idx++]))); |
| TD->setRBraceLoc(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| TD->setTagKeywordLoc(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| } |
| |
| void PCHDeclReader::VisitEnumDecl(EnumDecl *ED) { |
| VisitTagDecl(ED); |
| ED->setIntegerType(Reader.GetType(Record[Idx++])); |
| // FIXME: C++ InstantiatedFrom |
| } |
| |
| void PCHDeclReader::VisitRecordDecl(RecordDecl *RD) { |
| VisitTagDecl(RD); |
| RD->setHasFlexibleArrayMember(Record[Idx++]); |
| RD->setAnonymousStructOrUnion(Record[Idx++]); |
| RD->setHasObjectMember(Record[Idx++]); |
| } |
| |
| void PCHDeclReader::VisitValueDecl(ValueDecl *VD) { |
| VisitNamedDecl(VD); |
| VD->setType(Reader.GetType(Record[Idx++])); |
| } |
| |
| void PCHDeclReader::VisitEnumConstantDecl(EnumConstantDecl *ECD) { |
| VisitValueDecl(ECD); |
| if (Record[Idx++]) |
| ECD->setInitExpr(Reader.ReadDeclExpr()); |
| ECD->setInitVal(Reader.ReadAPSInt(Record, Idx)); |
| } |
| |
| void PCHDeclReader::VisitDeclaratorDecl(DeclaratorDecl *DD) { |
| VisitValueDecl(DD); |
| DeclaratorInfo *DInfo = Reader.GetDeclaratorInfo(Record, Idx); |
| if (DInfo) |
| DD->setDeclaratorInfo(DInfo); |
| } |
| |
| void PCHDeclReader::VisitFunctionDecl(FunctionDecl *FD) { |
| VisitDeclaratorDecl(FD); |
| if (Record[Idx++]) |
| FD->setLazyBody(Reader.getDeclsCursor().GetCurrentBitNo()); |
| FD->setPreviousDeclaration( |
| cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++]))); |
| FD->setStorageClass((FunctionDecl::StorageClass)Record[Idx++]); |
| FD->setInlineSpecified(Record[Idx++]); |
| FD->setVirtualAsWritten(Record[Idx++]); |
| FD->setPure(Record[Idx++]); |
| FD->setHasInheritedPrototype(Record[Idx++]); |
| FD->setHasWrittenPrototype(Record[Idx++]); |
| FD->setDeleted(Record[Idx++]); |
| FD->setTrivial(Record[Idx++]); |
| FD->setCopyAssignment(Record[Idx++]); |
| FD->setHasImplicitReturnZero(Record[Idx++]); |
| FD->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| // FIXME: C++ TemplateOrInstantiation |
| unsigned NumParams = Record[Idx++]; |
| llvm::SmallVector<ParmVarDecl *, 16> Params; |
| Params.reserve(NumParams); |
| for (unsigned I = 0; I != NumParams; ++I) |
| Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++]))); |
| FD->setParams(*Reader.getContext(), Params.data(), NumParams); |
| } |
| |
| void PCHDeclReader::VisitObjCMethodDecl(ObjCMethodDecl *MD) { |
| VisitNamedDecl(MD); |
| if (Record[Idx++]) { |
| // In practice, this won't be executed (since method definitions |
| // don't occur in header files). |
| MD->setBody(Reader.ReadDeclStmt()); |
| MD->setSelfDecl(cast<ImplicitParamDecl>(Reader.GetDecl(Record[Idx++]))); |
| MD->setCmdDecl(cast<ImplicitParamDecl>(Reader.GetDecl(Record[Idx++]))); |
| } |
| MD->setInstanceMethod(Record[Idx++]); |
| MD->setVariadic(Record[Idx++]); |
| MD->setSynthesized(Record[Idx++]); |
| MD->setDeclImplementation((ObjCMethodDecl::ImplementationControl)Record[Idx++]); |
| MD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]); |
| MD->setResultType(Reader.GetType(Record[Idx++])); |
| MD->setEndLoc(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| unsigned NumParams = Record[Idx++]; |
| llvm::SmallVector<ParmVarDecl *, 16> Params; |
| Params.reserve(NumParams); |
| for (unsigned I = 0; I != NumParams; ++I) |
| Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++]))); |
| MD->setMethodParams(*Reader.getContext(), Params.data(), NumParams); |
| } |
| |
| void PCHDeclReader::VisitObjCContainerDecl(ObjCContainerDecl *CD) { |
| VisitNamedDecl(CD); |
| CD->setAtEndLoc(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| } |
| |
| void PCHDeclReader::VisitObjCInterfaceDecl(ObjCInterfaceDecl *ID) { |
| VisitObjCContainerDecl(ID); |
| ID->setTypeForDecl(Reader.GetType(Record[Idx++]).getTypePtr()); |
| ID->setSuperClass(cast_or_null<ObjCInterfaceDecl> |
| (Reader.GetDecl(Record[Idx++]))); |
| unsigned NumProtocols = Record[Idx++]; |
| llvm::SmallVector<ObjCProtocolDecl *, 16> Protocols; |
| Protocols.reserve(NumProtocols); |
| for (unsigned I = 0; I != NumProtocols; ++I) |
| Protocols.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++]))); |
| ID->setProtocolList(Protocols.data(), NumProtocols, *Reader.getContext()); |
| unsigned NumIvars = Record[Idx++]; |
| llvm::SmallVector<ObjCIvarDecl *, 16> IVars; |
| IVars.reserve(NumIvars); |
| for (unsigned I = 0; I != NumIvars; ++I) |
| IVars.push_back(cast<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++]))); |
| ID->setIVarList(IVars.data(), NumIvars, *Reader.getContext()); |
| ID->setCategoryList( |
| cast_or_null<ObjCCategoryDecl>(Reader.GetDecl(Record[Idx++]))); |
| ID->setForwardDecl(Record[Idx++]); |
| ID->setImplicitInterfaceDecl(Record[Idx++]); |
| ID->setClassLoc(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| ID->setSuperClassLoc(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| ID->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| } |
| |
| void PCHDeclReader::VisitObjCIvarDecl(ObjCIvarDecl *IVD) { |
| VisitFieldDecl(IVD); |
| IVD->setAccessControl((ObjCIvarDecl::AccessControl)Record[Idx++]); |
| } |
| |
| void PCHDeclReader::VisitObjCProtocolDecl(ObjCProtocolDecl *PD) { |
| VisitObjCContainerDecl(PD); |
| PD->setForwardDecl(Record[Idx++]); |
| PD->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| unsigned NumProtoRefs = Record[Idx++]; |
| llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs; |
| ProtoRefs.reserve(NumProtoRefs); |
| for (unsigned I = 0; I != NumProtoRefs; ++I) |
| ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++]))); |
| PD->setProtocolList(ProtoRefs.data(), NumProtoRefs, *Reader.getContext()); |
| } |
| |
| void PCHDeclReader::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *FD) { |
| VisitFieldDecl(FD); |
| } |
| |
| void PCHDeclReader::VisitObjCClassDecl(ObjCClassDecl *CD) { |
| VisitDecl(CD); |
| unsigned NumClassRefs = Record[Idx++]; |
| llvm::SmallVector<ObjCInterfaceDecl *, 16> ClassRefs; |
| ClassRefs.reserve(NumClassRefs); |
| for (unsigned I = 0; I != NumClassRefs; ++I) |
| ClassRefs.push_back(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++]))); |
| llvm::SmallVector<SourceLocation, 16> SLocs; |
| SLocs.reserve(NumClassRefs); |
| for (unsigned I = 0; I != NumClassRefs; ++I) |
| SLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| CD->setClassList(*Reader.getContext(), ClassRefs.data(), SLocs.data(), |
| NumClassRefs); |
| } |
| |
| void PCHDeclReader::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *FPD) { |
| VisitDecl(FPD); |
| unsigned NumProtoRefs = Record[Idx++]; |
| llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs; |
| ProtoRefs.reserve(NumProtoRefs); |
| for (unsigned I = 0; I != NumProtoRefs; ++I) |
| ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++]))); |
| FPD->setProtocolList(ProtoRefs.data(), NumProtoRefs, *Reader.getContext()); |
| } |
| |
| void PCHDeclReader::VisitObjCCategoryDecl(ObjCCategoryDecl *CD) { |
| VisitObjCContainerDecl(CD); |
| CD->setClassInterface(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++]))); |
| unsigned NumProtoRefs = Record[Idx++]; |
| llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs; |
| ProtoRefs.reserve(NumProtoRefs); |
| for (unsigned I = 0; I != NumProtoRefs; ++I) |
| ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++]))); |
| CD->setProtocolList(ProtoRefs.data(), NumProtoRefs, *Reader.getContext()); |
| CD->setNextClassCategory(cast_or_null<ObjCCategoryDecl>(Reader.GetDecl(Record[Idx++]))); |
| CD->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| } |
| |
| void PCHDeclReader::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *CAD) { |
| VisitNamedDecl(CAD); |
| CAD->setClassInterface(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++]))); |
| } |
| |
| void PCHDeclReader::VisitObjCPropertyDecl(ObjCPropertyDecl *D) { |
| VisitNamedDecl(D); |
| D->setType(Reader.GetType(Record[Idx++])); |
| // FIXME: stable encoding |
| D->setPropertyAttributes( |
| (ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]); |
| // FIXME: stable encoding |
| D->setPropertyImplementation( |
| (ObjCPropertyDecl::PropertyControl)Record[Idx++]); |
| D->setGetterName(Reader.ReadDeclarationName(Record, Idx).getObjCSelector()); |
| D->setSetterName(Reader.ReadDeclarationName(Record, Idx).getObjCSelector()); |
| D->setGetterMethodDecl( |
| cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++]))); |
| D->setSetterMethodDecl( |
| cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++]))); |
| D->setPropertyIvarDecl( |
| cast_or_null<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++]))); |
| } |
| |
| void PCHDeclReader::VisitObjCImplDecl(ObjCImplDecl *D) { |
| VisitObjCContainerDecl(D); |
| D->setClassInterface( |
| cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++]))); |
| } |
| |
| void PCHDeclReader::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { |
| VisitObjCImplDecl(D); |
| D->setIdentifier(Reader.GetIdentifierInfo(Record, Idx)); |
| } |
| |
| void PCHDeclReader::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { |
| VisitObjCImplDecl(D); |
| D->setSuperClass( |
| cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++]))); |
| } |
| |
| |
| void PCHDeclReader::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) { |
| VisitDecl(D); |
| D->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++])); |
| D->setPropertyDecl( |
| cast_or_null<ObjCPropertyDecl>(Reader.GetDecl(Record[Idx++]))); |
| D->setPropertyIvarDecl( |
| cast_or_null<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++]))); |
| } |
| |
| void PCHDeclReader::VisitFieldDecl(FieldDecl *FD) { |
| VisitDeclaratorDecl(FD); |
| FD->setMutable(Record[Idx++]); |
| if (Record[Idx++]) |
| FD->setBitWidth(Reader.ReadDeclExpr()); |
| } |
| |
| void PCHDeclReader::VisitVarDecl(VarDecl *VD) { |
| VisitDeclaratorDecl(VD); |
| VD->setStorageClass((VarDecl::StorageClass)Record[Idx++]); |
| VD->setThreadSpecified(Record[Idx++]); |
| VD->setCXXDirectInitializer(Record[Idx++]); |
| VD->setDeclaredInCondition(Record[Idx++]); |
| VD->setPreviousDeclaration( |
| cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++]))); |
| if (Record[Idx++]) |
| VD->setInit(*Reader.getContext(), Reader.ReadDeclExpr()); |
| } |
| |
| void PCHDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) { |
| VisitVarDecl(PD); |
| } |
| |
| void PCHDeclReader::VisitParmVarDecl(ParmVarDecl *PD) { |
| VisitVarDecl(PD); |
| PD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]); |
| } |
| |
| void PCHDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) { |
| VisitDecl(AD); |
| AD->setAsmString(cast<StringLiteral>(Reader.ReadDeclExpr())); |
| } |
| |
| void PCHDeclReader::VisitBlockDecl(BlockDecl *BD) { |
| VisitDecl(BD); |
| BD->setBody(cast_or_null<CompoundStmt>(Reader.ReadDeclStmt())); |
| unsigned NumParams = Record[Idx++]; |
| llvm::SmallVector<ParmVarDecl *, 16> Params; |
| Params.reserve(NumParams); |
| for (unsigned I = 0; I != NumParams; ++I) |
| Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++]))); |
| BD->setParams(*Reader.getContext(), Params.data(), NumParams); |
| } |
| |
| std::pair<uint64_t, uint64_t> |
| PCHDeclReader::VisitDeclContext(DeclContext *DC) { |
| uint64_t LexicalOffset = Record[Idx++]; |
| uint64_t VisibleOffset = Record[Idx++]; |
| return std::make_pair(LexicalOffset, VisibleOffset); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Attribute Reading |
| //===----------------------------------------------------------------------===// |
| |
| /// \brief Reads attributes from the current stream position. |
| Attr *PCHReader::ReadAttributes() { |
| unsigned Code = DeclsCursor.ReadCode(); |
| assert(Code == llvm::bitc::UNABBREV_RECORD && |
| "Expected unabbreviated record"); (void)Code; |
| |
| RecordData Record; |
| unsigned Idx = 0; |
| unsigned RecCode = DeclsCursor.ReadRecord(Code, Record); |
| assert(RecCode == pch::DECL_ATTR && "Expected attribute record"); |
| (void)RecCode; |
| |
| #define SIMPLE_ATTR(Name) \ |
| case Attr::Name: \ |
| New = ::new (*Context) Name##Attr(); \ |
| break |
| |
| #define STRING_ATTR(Name) \ |
| case Attr::Name: \ |
| New = ::new (*Context) Name##Attr(ReadString(Record, Idx)); \ |
| break |
| |
| #define UNSIGNED_ATTR(Name) \ |
| case Attr::Name: \ |
| New = ::new (*Context) Name##Attr(Record[Idx++]); \ |
| break |
| |
| Attr *Attrs = 0; |
| while (Idx < Record.size()) { |
| Attr *New = 0; |
| Attr::Kind Kind = (Attr::Kind)Record[Idx++]; |
| bool IsInherited = Record[Idx++]; |
| |
| switch (Kind) { |
| STRING_ATTR(Alias); |
| UNSIGNED_ATTR(Aligned); |
| SIMPLE_ATTR(AlwaysInline); |
| SIMPLE_ATTR(AnalyzerNoReturn); |
| STRING_ATTR(Annotate); |
| STRING_ATTR(AsmLabel); |
| SIMPLE_ATTR(BaseCheck); |
| |
| case Attr::Blocks: |
| New = ::new (*Context) BlocksAttr( |
| (BlocksAttr::BlocksAttrTypes)Record[Idx++]); |
| break; |
| |
| SIMPLE_ATTR(CDecl); |
| |
| case Attr::Cleanup: |
| New = ::new (*Context) CleanupAttr( |
| cast<FunctionDecl>(GetDecl(Record[Idx++]))); |
| break; |
| |
| SIMPLE_ATTR(Const); |
| UNSIGNED_ATTR(Constructor); |
| SIMPLE_ATTR(DLLExport); |
| SIMPLE_ATTR(DLLImport); |
| SIMPLE_ATTR(Deprecated); |
| UNSIGNED_ATTR(Destructor); |
| SIMPLE_ATTR(FastCall); |
| SIMPLE_ATTR(Final); |
| |
| case Attr::Format: { |
| std::string Type = ReadString(Record, Idx); |
| unsigned FormatIdx = Record[Idx++]; |
| unsigned FirstArg = Record[Idx++]; |
| New = ::new (*Context) FormatAttr(Type, FormatIdx, FirstArg); |
| break; |
| } |
| |
| case Attr::FormatArg: { |
| unsigned FormatIdx = Record[Idx++]; |
| New = ::new (*Context) FormatArgAttr(FormatIdx); |
| break; |
| } |
| |
| case Attr::Sentinel: { |
| int sentinel = Record[Idx++]; |
| int nullPos = Record[Idx++]; |
| New = ::new (*Context) SentinelAttr(sentinel, nullPos); |
| break; |
| } |
| |
| SIMPLE_ATTR(GNUInline); |
| SIMPLE_ATTR(Hiding); |
| |
| case Attr::IBOutletKind: |
| New = ::new (*Context) IBOutletAttr(); |
| break; |
| |
| SIMPLE_ATTR(Malloc); |
| SIMPLE_ATTR(NoDebug); |
| SIMPLE_ATTR(NoInline); |
| SIMPLE_ATTR(NoReturn); |
| SIMPLE_ATTR(NoThrow); |
| |
| case Attr::NonNull: { |
| unsigned Size = Record[Idx++]; |
| llvm::SmallVector<unsigned, 16> ArgNums; |
| ArgNums.insert(ArgNums.end(), &Record[Idx], &Record[Idx] + Size); |
| Idx += Size; |
| New = ::new (*Context) NonNullAttr(ArgNums.data(), Size); |
| break; |
| } |
| |
| case Attr::ReqdWorkGroupSize: { |
| unsigned X = Record[Idx++]; |
| unsigned Y = Record[Idx++]; |
| unsigned Z = Record[Idx++]; |
| New = ::new (*Context) ReqdWorkGroupSizeAttr(X, Y, Z); |
| break; |
| } |
| |
| SIMPLE_ATTR(ObjCException); |
| SIMPLE_ATTR(ObjCNSObject); |
| SIMPLE_ATTR(CFReturnsRetained); |
| SIMPLE_ATTR(NSReturnsRetained); |
| SIMPLE_ATTR(Overloadable); |
| SIMPLE_ATTR(Override); |
| SIMPLE_ATTR(Packed); |
| UNSIGNED_ATTR(PragmaPack); |
| SIMPLE_ATTR(Pure); |
| UNSIGNED_ATTR(Regparm); |
| STRING_ATTR(Section); |
| SIMPLE_ATTR(StdCall); |
| SIMPLE_ATTR(TransparentUnion); |
| SIMPLE_ATTR(Unavailable); |
| SIMPLE_ATTR(Unused); |
| SIMPLE_ATTR(Used); |
| |
| case Attr::Visibility: |
| New = ::new (*Context) VisibilityAttr( |
| (VisibilityAttr::VisibilityTypes)Record[Idx++]); |
| break; |
| |
| SIMPLE_ATTR(WarnUnusedResult); |
| SIMPLE_ATTR(Weak); |
| SIMPLE_ATTR(WeakImport); |
| } |
| |
| assert(New && "Unable to decode attribute?"); |
| New->setInherited(IsInherited); |
| New->setNext(Attrs); |
| Attrs = New; |
| } |
| #undef UNSIGNED_ATTR |
| #undef STRING_ATTR |
| #undef SIMPLE_ATTR |
| |
| // The list of attributes was built backwards. Reverse the list |
| // before returning it. |
| Attr *PrevAttr = 0, *NextAttr = 0; |
| while (Attrs) { |
| NextAttr = Attrs->getNext(); |
| Attrs->setNext(PrevAttr); |
| PrevAttr = Attrs; |
| Attrs = NextAttr; |
| } |
| |
| return PrevAttr; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // PCHReader 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 PCHReader::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) { |
| if (isa<FileScopeAsmDecl>(D)) |
| return true; |
| if (VarDecl *Var = dyn_cast<VarDecl>(D)) |
| return Var->isFileVarDecl() && Var->getInit(); |
| if (FunctionDecl *Func = dyn_cast<FunctionDecl>(D)) |
| return Func->isThisDeclarationADefinition(); |
| return isa<ObjCProtocolDecl>(D); |
| } |
| |
| /// \brief Read the declaration at the given offset from the PCH file. |
| Decl *PCHReader::ReadDeclRecord(uint64_t Offset, unsigned Index) { |
| // Keep track of where we are in the stream, then jump back there |
| // after reading this declaration. |
| SavedStreamPosition SavedPosition(DeclsCursor); |
| |
| // Note that we are loading a declaration record. |
| LoadingTypeOrDecl Loading(*this); |
| |
| DeclsCursor.JumpToBit(Offset); |
| RecordData Record; |
| unsigned Code = DeclsCursor.ReadCode(); |
| unsigned Idx = 0; |
| PCHDeclReader Reader(*this, Record, Idx); |
| |
| Decl *D = 0; |
| switch ((pch::DeclCode)DeclsCursor.ReadRecord(Code, Record)) { |
| case pch::DECL_ATTR: |
| case pch::DECL_CONTEXT_LEXICAL: |
| case pch::DECL_CONTEXT_VISIBLE: |
| assert(false && "Record cannot be de-serialized with ReadDeclRecord"); |
| break; |
| case pch::DECL_TRANSLATION_UNIT: |
| assert(Index == 0 && "Translation unit must be at index 0"); |
| D = Context->getTranslationUnitDecl(); |
| break; |
| case pch::DECL_TYPEDEF: |
| D = TypedefDecl::Create(*Context, 0, SourceLocation(), 0, 0); |
| break; |
| case pch::DECL_ENUM: |
| D = EnumDecl::Create(*Context, 0, SourceLocation(), 0, SourceLocation(), 0); |
| break; |
| case pch::DECL_RECORD: |
| D = RecordDecl::Create(*Context, TagDecl::TK_struct, 0, SourceLocation(), |
| 0, SourceLocation(), 0); |
| break; |
| case pch::DECL_ENUM_CONSTANT: |
| D = EnumConstantDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), |
| 0, llvm::APSInt()); |
| break; |
| case pch::DECL_FUNCTION: |
| D = FunctionDecl::Create(*Context, 0, SourceLocation(), DeclarationName(), |
| QualType(), 0); |
| break; |
| case pch::DECL_OBJC_METHOD: |
| D = ObjCMethodDecl::Create(*Context, SourceLocation(), SourceLocation(), |
| Selector(), QualType(), 0); |
| break; |
| case pch::DECL_OBJC_INTERFACE: |
| D = ObjCInterfaceDecl::Create(*Context, 0, SourceLocation(), 0); |
| break; |
| case pch::DECL_OBJC_IVAR: |
| D = ObjCIvarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0, |
| ObjCIvarDecl::None); |
| break; |
| case pch::DECL_OBJC_PROTOCOL: |
| D = ObjCProtocolDecl::Create(*Context, 0, SourceLocation(), 0); |
| break; |
| case pch::DECL_OBJC_AT_DEFS_FIELD: |
| D = ObjCAtDefsFieldDecl::Create(*Context, 0, SourceLocation(), 0, |
| QualType(), 0); |
| break; |
| case pch::DECL_OBJC_CLASS: |
| D = ObjCClassDecl::Create(*Context, 0, SourceLocation()); |
| break; |
| case pch::DECL_OBJC_FORWARD_PROTOCOL: |
| D = ObjCForwardProtocolDecl::Create(*Context, 0, SourceLocation()); |
| break; |
| case pch::DECL_OBJC_CATEGORY: |
| D = ObjCCategoryDecl::Create(*Context, 0, SourceLocation(), 0); |
| break; |
| case pch::DECL_OBJC_CATEGORY_IMPL: |
| D = ObjCCategoryImplDecl::Create(*Context, 0, SourceLocation(), 0, 0); |
| break; |
| case pch::DECL_OBJC_IMPLEMENTATION: |
| D = ObjCImplementationDecl::Create(*Context, 0, SourceLocation(), 0, 0); |
| break; |
| case pch::DECL_OBJC_COMPATIBLE_ALIAS: |
| D = ObjCCompatibleAliasDecl::Create(*Context, 0, SourceLocation(), 0, 0); |
| break; |
| case pch::DECL_OBJC_PROPERTY: |
| D = ObjCPropertyDecl::Create(*Context, 0, SourceLocation(), 0, QualType()); |
| break; |
| case pch::DECL_OBJC_PROPERTY_IMPL: |
| D = ObjCPropertyImplDecl::Create(*Context, 0, SourceLocation(), |
| SourceLocation(), 0, |
| ObjCPropertyImplDecl::Dynamic, 0); |
| break; |
| case pch::DECL_FIELD: |
| D = FieldDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0, 0, |
| false); |
| break; |
| case pch::DECL_VAR: |
| D = VarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0, |
| VarDecl::None); |
| break; |
| |
| case pch::DECL_IMPLICIT_PARAM: |
| D = ImplicitParamDecl::Create(*Context, 0, SourceLocation(), 0, QualType()); |
| break; |
| |
| case pch::DECL_PARM_VAR: |
| D = ParmVarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0, |
| VarDecl::None, 0); |
| break; |
| case pch::DECL_FILE_SCOPE_ASM: |
| D = FileScopeAsmDecl::Create(*Context, 0, SourceLocation(), 0); |
| break; |
| case pch::DECL_BLOCK: |
| D = BlockDecl::Create(*Context, 0, SourceLocation()); |
| break; |
| } |
| |
| assert(D && "Unknown declaration reading PCH file"); |
| LoadedDecl(Index, D); |
| 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)) { |
| std::pair<uint64_t, uint64_t> Offsets = Reader.VisitDeclContext(DC); |
| if (Offsets.first || Offsets.second) { |
| DC->setHasExternalLexicalStorage(Offsets.first != 0); |
| DC->setHasExternalVisibleStorage(Offsets.second != 0); |
| DeclContextOffsets[DC] = Offsets; |
| } |
| } |
| assert(Idx == Record.size()); |
| |
| // If we have deserialized a declaration that has a definition the |
| // AST consumer might need to know about, notify the consumer |
| // about that definition now or queue it for later. |
| if (isConsumerInterestedIn(D)) { |
| if (Consumer) { |
| DeclGroupRef DG(D); |
| Consumer->HandleTopLevelDecl(DG); |
| } else { |
| InterestingDecls.push_back(D); |
| } |
| } |
| |
| return D; |
| } |