| //===--- PCHWriterDecl.cpp - Declaration Serialization --------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements serialization for Declarations. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "clang/Frontend/PCHWriter.h" |
| #include "clang/AST/DeclVisitor.h" |
| #include "clang/AST/DeclCXX.h" |
| #include "clang/AST/DeclTemplate.h" |
| #include "clang/AST/Expr.h" |
| #include "llvm/ADT/Twine.h" |
| #include "llvm/Bitcode/BitstreamWriter.h" |
| #include "llvm/Support/ErrorHandling.h" |
| using namespace clang; |
| |
| //===----------------------------------------------------------------------===// |
| // Declaration serialization |
| //===----------------------------------------------------------------------===// |
| |
| namespace clang { |
| class PCHDeclWriter : public DeclVisitor<PCHDeclWriter, void> { |
| |
| PCHWriter &Writer; |
| ASTContext &Context; |
| PCHWriter::RecordData &Record; |
| |
| public: |
| pch::DeclCode Code; |
| unsigned AbbrevToUse; |
| |
| PCHDeclWriter(PCHWriter &Writer, ASTContext &Context, |
| PCHWriter::RecordData &Record) |
| : Writer(Writer), Context(Context), Record(Record) { |
| } |
| |
| void Visit(Decl *D); |
| |
| void VisitDecl(Decl *D); |
| void VisitTranslationUnitDecl(TranslationUnitDecl *D); |
| void VisitNamedDecl(NamedDecl *D); |
| void VisitNamespaceDecl(NamespaceDecl *D); |
| void VisitUsingDirectiveDecl(UsingDirectiveDecl *D); |
| void VisitNamespaceAliasDecl(NamespaceAliasDecl *D); |
| void VisitTypeDecl(TypeDecl *D); |
| void VisitTypedefDecl(TypedefDecl *D); |
| void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); |
| void VisitTagDecl(TagDecl *D); |
| void VisitEnumDecl(EnumDecl *D); |
| void VisitRecordDecl(RecordDecl *D); |
| void VisitCXXRecordDecl(CXXRecordDecl *D); |
| void VisitClassTemplateSpecializationDecl( |
| ClassTemplateSpecializationDecl *D); |
| void VisitClassTemplatePartialSpecializationDecl( |
| ClassTemplatePartialSpecializationDecl *D); |
| void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D); |
| void VisitValueDecl(ValueDecl *D); |
| void VisitEnumConstantDecl(EnumConstantDecl *D); |
| void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); |
| void VisitDeclaratorDecl(DeclaratorDecl *D); |
| void VisitFunctionDecl(FunctionDecl *D); |
| void VisitCXXMethodDecl(CXXMethodDecl *D); |
| void VisitCXXConstructorDecl(CXXConstructorDecl *D); |
| void VisitCXXDestructorDecl(CXXDestructorDecl *D); |
| void VisitCXXConversionDecl(CXXConversionDecl *D); |
| void VisitFieldDecl(FieldDecl *D); |
| void VisitVarDecl(VarDecl *D); |
| void VisitImplicitParamDecl(ImplicitParamDecl *D); |
| void VisitParmVarDecl(ParmVarDecl *D); |
| void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D); |
| void VisitTemplateDecl(TemplateDecl *D); |
| void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D); |
| void VisitClassTemplateDecl(ClassTemplateDecl *D); |
| void VisitFunctionTemplateDecl(FunctionTemplateDecl *D); |
| void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D); |
| void VisitUsingDecl(UsingDecl *D); |
| void VisitUsingShadowDecl(UsingShadowDecl *D); |
| void VisitLinkageSpecDecl(LinkageSpecDecl *D); |
| void VisitFileScopeAsmDecl(FileScopeAsmDecl *D); |
| void VisitAccessSpecDecl(AccessSpecDecl *D); |
| void VisitFriendDecl(FriendDecl *D); |
| void VisitFriendTemplateDecl(FriendTemplateDecl *D); |
| void VisitStaticAssertDecl(StaticAssertDecl *D); |
| void VisitBlockDecl(BlockDecl *D); |
| |
| void VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset, |
| uint64_t VisibleOffset); |
| |
| |
| // FIXME: Put in the same order is 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 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 PCHDeclWriter::Visit(Decl *D) { |
| DeclVisitor<PCHDeclWriter>::Visit(D); |
| |
| // Handle FunctionDecl's body here and write it after all other Stmts/Exprs |
| // have been written. We want it last because we will not read it back when |
| // retrieving it from the PCH, we'll just lazily set the offset. |
| if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
| Record.push_back(FD->isThisDeclarationADefinition()); |
| if (FD->isThisDeclarationADefinition()) |
| Writer.AddStmt(FD->getBody()); |
| } |
| } |
| |
| void PCHDeclWriter::VisitDecl(Decl *D) { |
| Writer.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()), Record); |
| Writer.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()), Record); |
| Writer.AddSourceLocation(D->getLocation(), Record); |
| Record.push_back(D->isInvalidDecl()); |
| Record.push_back(D->hasAttrs()); |
| Record.push_back(D->isImplicit()); |
| Record.push_back(D->isUsed(false)); |
| Record.push_back(D->getAccess()); |
| Record.push_back(D->getPCHLevel()); |
| } |
| |
| void PCHDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { |
| VisitDecl(D); |
| Writer.AddDeclRef(D->getAnonymousNamespace(), Record); |
| Code = pch::DECL_TRANSLATION_UNIT; |
| } |
| |
| void PCHDeclWriter::VisitNamedDecl(NamedDecl *D) { |
| VisitDecl(D); |
| Writer.AddDeclarationName(D->getDeclName(), Record); |
| } |
| |
| void PCHDeclWriter::VisitTypeDecl(TypeDecl *D) { |
| VisitNamedDecl(D); |
| Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record); |
| } |
| |
| void PCHDeclWriter::VisitTypedefDecl(TypedefDecl *D) { |
| VisitTypeDecl(D); |
| Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); |
| Code = pch::DECL_TYPEDEF; |
| } |
| |
| void PCHDeclWriter::VisitTagDecl(TagDecl *D) { |
| VisitTypeDecl(D); |
| Record.push_back(D->getIdentifierNamespace()); |
| Writer.AddDeclRef(D->getPreviousDeclaration(), Record); |
| Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding |
| Record.push_back(D->isDefinition()); |
| Record.push_back(D->isEmbeddedInDeclarator()); |
| Writer.AddSourceLocation(D->getRBraceLoc(), Record); |
| Writer.AddSourceLocation(D->getTagKeywordLoc(), Record); |
| // FIXME: maybe write optional qualifier and its range. |
| Writer.AddDeclRef(D->getTypedefForAnonDecl(), Record); |
| } |
| |
| void PCHDeclWriter::VisitEnumDecl(EnumDecl *D) { |
| VisitTagDecl(D); |
| Writer.AddTypeRef(D->getIntegerType(), Record); |
| Writer.AddTypeRef(D->getPromotionType(), Record); |
| Record.push_back(D->getNumPositiveBits()); |
| Record.push_back(D->getNumNegativeBits()); |
| Writer.AddDeclRef(D->getInstantiatedFromMemberEnum(), Record); |
| Code = pch::DECL_ENUM; |
| } |
| |
| void PCHDeclWriter::VisitRecordDecl(RecordDecl *D) { |
| VisitTagDecl(D); |
| Record.push_back(D->hasFlexibleArrayMember()); |
| Record.push_back(D->isAnonymousStructOrUnion()); |
| Record.push_back(D->hasObjectMember()); |
| Code = pch::DECL_RECORD; |
| } |
| |
| void PCHDeclWriter::VisitValueDecl(ValueDecl *D) { |
| VisitNamedDecl(D); |
| Writer.AddTypeRef(D->getType(), Record); |
| } |
| |
| void PCHDeclWriter::VisitEnumConstantDecl(EnumConstantDecl *D) { |
| VisitValueDecl(D); |
| Record.push_back(D->getInitExpr()? 1 : 0); |
| if (D->getInitExpr()) |
| Writer.AddStmt(D->getInitExpr()); |
| Writer.AddAPSInt(D->getInitVal(), Record); |
| Code = pch::DECL_ENUM_CONSTANT; |
| } |
| |
| void PCHDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) { |
| VisitValueDecl(D); |
| Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); |
| // FIXME: write optional qualifier and its range. |
| } |
| |
| void PCHDeclWriter::VisitFunctionDecl(FunctionDecl *D) { |
| VisitDeclaratorDecl(D); |
| |
| Record.push_back(D->getIdentifierNamespace()); |
| Record.push_back(D->getTemplatedKind()); |
| switch (D->getTemplatedKind()) { |
| default: assert(false && "Unhandled TemplatedKind!"); |
| break; |
| case FunctionDecl::TK_NonTemplate: |
| break; |
| case FunctionDecl::TK_FunctionTemplate: |
| Writer.AddDeclRef(D->getDescribedFunctionTemplate(), Record); |
| break; |
| case FunctionDecl::TK_MemberSpecialization: { |
| MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo(); |
| Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record); |
| Record.push_back(MemberInfo->getTemplateSpecializationKind()); |
| Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record); |
| break; |
| } |
| case FunctionDecl::TK_FunctionTemplateSpecialization: { |
| FunctionTemplateSpecializationInfo * |
| FTSInfo = D->getTemplateSpecializationInfo(); |
| // We want it canonical to guarantee that it has a Common*. |
| Writer.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl(), Record); |
| Record.push_back(FTSInfo->getTemplateSpecializationKind()); |
| |
| // Template arguments. |
| Writer.AddTemplateArgumentList(FTSInfo->TemplateArguments, Record); |
| |
| // Template args as written. |
| Record.push_back(FTSInfo->TemplateArgumentsAsWritten != 0); |
| if (FTSInfo->TemplateArgumentsAsWritten) { |
| Record.push_back(FTSInfo->TemplateArgumentsAsWritten->size()); |
| for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->size(); i!=e; ++i) |
| Writer.AddTemplateArgumentLoc((*FTSInfo->TemplateArgumentsAsWritten)[i], |
| Record); |
| Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->getLAngleLoc(), |
| Record); |
| Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->getRAngleLoc(), |
| Record); |
| } |
| |
| Writer.AddSourceLocation(FTSInfo->getPointOfInstantiation(), Record); |
| break; |
| } |
| case FunctionDecl::TK_DependentFunctionTemplateSpecialization: { |
| DependentFunctionTemplateSpecializationInfo * |
| DFTSInfo = D->getDependentSpecializationInfo(); |
| |
| // Templates. |
| Record.push_back(DFTSInfo->getNumTemplates()); |
| for (int i=0, e = DFTSInfo->getNumTemplates(); i != e; ++i) |
| Writer.AddDeclRef(DFTSInfo->getTemplate(i), Record); |
| |
| // Templates args. |
| Record.push_back(DFTSInfo->getNumTemplateArgs()); |
| for (int i=0, e = DFTSInfo->getNumTemplateArgs(); i != e; ++i) |
| Writer.AddTemplateArgumentLoc(DFTSInfo->getTemplateArg(i), Record); |
| Writer.AddSourceLocation(DFTSInfo->getLAngleLoc(), Record); |
| Writer.AddSourceLocation(DFTSInfo->getRAngleLoc(), Record); |
| break; |
| } |
| } |
| |
| // FunctionDecl's body is handled last at PCHWriterDecl::Visit, |
| // after everything else is written. |
| |
| Writer.AddDeclRef(D->getPreviousDeclaration(), Record); |
| Record.push_back(D->getStorageClass()); // FIXME: stable encoding |
| Record.push_back(D->getStorageClassAsWritten()); |
| Record.push_back(D->isInlineSpecified()); |
| Record.push_back(D->isVirtualAsWritten()); |
| Record.push_back(D->isPure()); |
| Record.push_back(D->hasInheritedPrototype()); |
| Record.push_back(D->hasWrittenPrototype()); |
| Record.push_back(D->isDeleted()); |
| Record.push_back(D->isTrivial()); |
| Record.push_back(D->isCopyAssignment()); |
| Record.push_back(D->hasImplicitReturnZero()); |
| Writer.AddSourceLocation(D->getLocEnd(), Record); |
| |
| Record.push_back(D->param_size()); |
| for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end(); |
| P != PEnd; ++P) |
| Writer.AddDeclRef(*P, Record); |
| Code = pch::DECL_FUNCTION; |
| } |
| |
| void PCHDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) { |
| VisitNamedDecl(D); |
| // FIXME: convert to LazyStmtPtr? |
| // Unlike C/C++, method bodies will never be in header files. |
| Record.push_back(D->getBody() != 0); |
| if (D->getBody() != 0) { |
| Writer.AddStmt(D->getBody()); |
| Writer.AddDeclRef(D->getSelfDecl(), Record); |
| Writer.AddDeclRef(D->getCmdDecl(), Record); |
| } |
| Record.push_back(D->isInstanceMethod()); |
| Record.push_back(D->isVariadic()); |
| Record.push_back(D->isSynthesized()); |
| Record.push_back(D->isDefined()); |
| // FIXME: stable encoding for @required/@optional |
| Record.push_back(D->getImplementationControl()); |
| // FIXME: stable encoding for in/out/inout/bycopy/byref/oneway |
| Record.push_back(D->getObjCDeclQualifier()); |
| Record.push_back(D->getNumSelectorArgs()); |
| Writer.AddTypeRef(D->getResultType(), Record); |
| Writer.AddTypeSourceInfo(D->getResultTypeSourceInfo(), Record); |
| Writer.AddSourceLocation(D->getLocEnd(), Record); |
| Record.push_back(D->param_size()); |
| for (ObjCMethodDecl::param_iterator P = D->param_begin(), |
| PEnd = D->param_end(); P != PEnd; ++P) |
| Writer.AddDeclRef(*P, Record); |
| Code = pch::DECL_OBJC_METHOD; |
| } |
| |
| void PCHDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) { |
| VisitNamedDecl(D); |
| Writer.AddSourceRange(D->getAtEndRange(), Record); |
| // Abstract class (no need to define a stable pch::DECL code). |
| } |
| |
| void PCHDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) { |
| VisitObjCContainerDecl(D); |
| Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record); |
| Writer.AddDeclRef(D->getSuperClass(), Record); |
| Record.push_back(D->protocol_size()); |
| for (ObjCInterfaceDecl::protocol_iterator P = D->protocol_begin(), |
| PEnd = D->protocol_end(); |
| P != PEnd; ++P) |
| Writer.AddDeclRef(*P, Record); |
| for (ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(), |
| PLEnd = D->protocol_loc_end(); |
| PL != PLEnd; ++PL) |
| Writer.AddSourceLocation(*PL, Record); |
| Record.push_back(D->ivar_size()); |
| for (ObjCInterfaceDecl::ivar_iterator I = D->ivar_begin(), |
| IEnd = D->ivar_end(); I != IEnd; ++I) |
| Writer.AddDeclRef(*I, Record); |
| Writer.AddDeclRef(D->getCategoryList(), Record); |
| Record.push_back(D->isForwardDecl()); |
| Record.push_back(D->isImplicitInterfaceDecl()); |
| Writer.AddSourceLocation(D->getClassLoc(), Record); |
| Writer.AddSourceLocation(D->getSuperClassLoc(), Record); |
| Writer.AddSourceLocation(D->getLocEnd(), Record); |
| Code = pch::DECL_OBJC_INTERFACE; |
| } |
| |
| void PCHDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) { |
| VisitFieldDecl(D); |
| // FIXME: stable encoding for @public/@private/@protected/@package |
| Record.push_back(D->getAccessControl()); |
| Record.push_back(D->getSynthesize()); |
| Code = pch::DECL_OBJC_IVAR; |
| } |
| |
| void PCHDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) { |
| VisitObjCContainerDecl(D); |
| Record.push_back(D->isForwardDecl()); |
| Writer.AddSourceLocation(D->getLocEnd(), Record); |
| Record.push_back(D->protocol_size()); |
| for (ObjCProtocolDecl::protocol_iterator |
| I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) |
| Writer.AddDeclRef(*I, Record); |
| for (ObjCProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(), |
| PLEnd = D->protocol_loc_end(); |
| PL != PLEnd; ++PL) |
| Writer.AddSourceLocation(*PL, Record); |
| Code = pch::DECL_OBJC_PROTOCOL; |
| } |
| |
| void PCHDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) { |
| VisitFieldDecl(D); |
| Code = pch::DECL_OBJC_AT_DEFS_FIELD; |
| } |
| |
| void PCHDeclWriter::VisitObjCClassDecl(ObjCClassDecl *D) { |
| VisitDecl(D); |
| Record.push_back(D->size()); |
| for (ObjCClassDecl::iterator I = D->begin(), IEnd = D->end(); I != IEnd; ++I) |
| Writer.AddDeclRef(I->getInterface(), Record); |
| for (ObjCClassDecl::iterator I = D->begin(), IEnd = D->end(); I != IEnd; ++I) |
| Writer.AddSourceLocation(I->getLocation(), Record); |
| Code = pch::DECL_OBJC_CLASS; |
| } |
| |
| void PCHDeclWriter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) { |
| VisitDecl(D); |
| Record.push_back(D->protocol_size()); |
| for (ObjCForwardProtocolDecl::protocol_iterator |
| I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) |
| Writer.AddDeclRef(*I, Record); |
| for (ObjCForwardProtocolDecl::protocol_loc_iterator |
| PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end(); |
| PL != PLEnd; ++PL) |
| Writer.AddSourceLocation(*PL, Record); |
| Code = pch::DECL_OBJC_FORWARD_PROTOCOL; |
| } |
| |
| void PCHDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) { |
| VisitObjCContainerDecl(D); |
| Writer.AddDeclRef(D->getClassInterface(), Record); |
| Record.push_back(D->protocol_size()); |
| for (ObjCCategoryDecl::protocol_iterator |
| I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I) |
| Writer.AddDeclRef(*I, Record); |
| for (ObjCCategoryDecl::protocol_loc_iterator |
| PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end(); |
| PL != PLEnd; ++PL) |
| Writer.AddSourceLocation(*PL, Record); |
| Writer.AddDeclRef(D->getNextClassCategory(), Record); |
| Writer.AddSourceLocation(D->getAtLoc(), Record); |
| Writer.AddSourceLocation(D->getCategoryNameLoc(), Record); |
| Code = pch::DECL_OBJC_CATEGORY; |
| } |
| |
| void PCHDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) { |
| VisitNamedDecl(D); |
| Writer.AddDeclRef(D->getClassInterface(), Record); |
| Code = pch::DECL_OBJC_COMPATIBLE_ALIAS; |
| } |
| |
| void PCHDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) { |
| VisitNamedDecl(D); |
| Writer.AddSourceLocation(D->getAtLoc(), Record); |
| Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record); |
| // FIXME: stable encoding |
| Record.push_back((unsigned)D->getPropertyAttributes()); |
| Record.push_back((unsigned)D->getPropertyAttributesAsWritten()); |
| // FIXME: stable encoding |
| Record.push_back((unsigned)D->getPropertyImplementation()); |
| Writer.AddDeclarationName(D->getGetterName(), Record); |
| Writer.AddDeclarationName(D->getSetterName(), Record); |
| Writer.AddDeclRef(D->getGetterMethodDecl(), Record); |
| Writer.AddDeclRef(D->getSetterMethodDecl(), Record); |
| Writer.AddDeclRef(D->getPropertyIvarDecl(), Record); |
| Code = pch::DECL_OBJC_PROPERTY; |
| } |
| |
| void PCHDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) { |
| VisitObjCContainerDecl(D); |
| Writer.AddDeclRef(D->getClassInterface(), Record); |
| // Abstract class (no need to define a stable pch::DECL code). |
| } |
| |
| void PCHDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { |
| VisitObjCImplDecl(D); |
| Writer.AddIdentifierRef(D->getIdentifier(), Record); |
| Code = pch::DECL_OBJC_CATEGORY_IMPL; |
| } |
| |
| void PCHDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { |
| VisitObjCImplDecl(D); |
| Writer.AddDeclRef(D->getSuperClass(), Record); |
| // FIXME add writing of IvarInitializers and NumIvarInitializers. |
| Code = pch::DECL_OBJC_IMPLEMENTATION; |
| } |
| |
| void PCHDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) { |
| VisitDecl(D); |
| Writer.AddSourceLocation(D->getLocStart(), Record); |
| Writer.AddDeclRef(D->getPropertyDecl(), Record); |
| Writer.AddDeclRef(D->getPropertyIvarDecl(), Record); |
| // FIXME. write GetterCXXConstructor and SetterCXXAssignment. |
| Code = pch::DECL_OBJC_PROPERTY_IMPL; |
| } |
| |
| void PCHDeclWriter::VisitFieldDecl(FieldDecl *D) { |
| VisitDeclaratorDecl(D); |
| Record.push_back(D->isMutable()); |
| Record.push_back(D->getBitWidth()? 1 : 0); |
| if (D->getBitWidth()) |
| Writer.AddStmt(D->getBitWidth()); |
| if (!D->getDeclName()) |
| Writer.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D), Record); |
| Code = pch::DECL_FIELD; |
| } |
| |
| void PCHDeclWriter::VisitVarDecl(VarDecl *D) { |
| VisitDeclaratorDecl(D); |
| Record.push_back(D->getStorageClass()); // FIXME: stable encoding |
| Record.push_back(D->getStorageClassAsWritten()); |
| Record.push_back(D->isThreadSpecified()); |
| Record.push_back(D->hasCXXDirectInitializer()); |
| Record.push_back(D->isDeclaredInCondition()); |
| Record.push_back(D->isExceptionVariable()); |
| Record.push_back(D->isNRVOVariable()); |
| Writer.AddDeclRef(D->getPreviousDeclaration(), Record); |
| Record.push_back(D->getInit() ? 1 : 0); |
| if (D->getInit()) |
| Writer.AddStmt(D->getInit()); |
| |
| MemberSpecializationInfo *SpecInfo |
| = D->isStaticDataMember() ? D->getMemberSpecializationInfo() : 0; |
| Record.push_back(SpecInfo != 0); |
| if (SpecInfo) { |
| Writer.AddDeclRef(SpecInfo->getInstantiatedFrom(), Record); |
| Record.push_back(SpecInfo->getTemplateSpecializationKind()); |
| Writer.AddSourceLocation(SpecInfo->getPointOfInstantiation(), Record); |
| } |
| |
| Code = pch::DECL_VAR; |
| } |
| |
| void PCHDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) { |
| VisitVarDecl(D); |
| Code = pch::DECL_IMPLICIT_PARAM; |
| } |
| |
| void PCHDeclWriter::VisitParmVarDecl(ParmVarDecl *D) { |
| VisitVarDecl(D); |
| Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding |
| Record.push_back(D->hasInheritedDefaultArg()); |
| Record.push_back(D->hasUninstantiatedDefaultArg()); |
| if (D->hasUninstantiatedDefaultArg()) |
| Writer.AddStmt(D->getUninstantiatedDefaultArg()); |
| Code = pch::DECL_PARM_VAR; |
| |
| // If the assumptions about the DECL_PARM_VAR abbrev are true, use it. Here |
| // we dynamically check for the properties that we optimize for, but don't |
| // know are true of all PARM_VAR_DECLs. |
| if (!D->getTypeSourceInfo() && |
| !D->hasAttrs() && |
| !D->isImplicit() && |
| !D->isUsed(false) && |
| D->getAccess() == AS_none && |
| D->getPCHLevel() == 0 && |
| D->getStorageClass() == 0 && |
| !D->hasCXXDirectInitializer() && // Can params have this ever? |
| D->getObjCDeclQualifier() == 0 && |
| !D->hasInheritedDefaultArg() && |
| D->getInit() == 0 && |
| !D->hasUninstantiatedDefaultArg()) // No default expr. |
| AbbrevToUse = Writer.getParmVarDeclAbbrev(); |
| |
| // Check things we know are true of *every* PARM_VAR_DECL, which is more than |
| // just us assuming it. |
| assert(!D->isInvalidDecl() && "Shouldn't emit invalid decls"); |
| assert(!D->isThreadSpecified() && "PARM_VAR_DECL can't be __thread"); |
| assert(D->getAccess() == AS_none && "PARM_VAR_DECL can't be public/private"); |
| assert(!D->isDeclaredInCondition() && "PARM_VAR_DECL can't be in condition"); |
| assert(!D->isExceptionVariable() && "PARM_VAR_DECL can't be exception var"); |
| assert(D->getPreviousDeclaration() == 0 && "PARM_VAR_DECL can't be redecl"); |
| assert(!D->isStaticDataMember() && |
| "PARM_VAR_DECL can't be static data member"); |
| } |
| |
| void PCHDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) { |
| VisitDecl(D); |
| Writer.AddStmt(D->getAsmString()); |
| Code = pch::DECL_FILE_SCOPE_ASM; |
| } |
| |
| void PCHDeclWriter::VisitBlockDecl(BlockDecl *D) { |
| VisitDecl(D); |
| Writer.AddStmt(D->getBody()); |
| Writer.AddTypeSourceInfo(D->getSignatureAsWritten(), Record); |
| Record.push_back(D->param_size()); |
| for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end(); |
| P != PEnd; ++P) |
| Writer.AddDeclRef(*P, Record); |
| Code = pch::DECL_BLOCK; |
| } |
| |
| void PCHDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { |
| VisitDecl(D); |
| // FIXME: It might be nice to serialize the brace locations for this |
| // declaration, which don't seem to be readily available in the AST. |
| Record.push_back(D->getLanguage()); |
| Record.push_back(D->hasBraces()); |
| Code = pch::DECL_LINKAGE_SPEC; |
| } |
| |
| void PCHDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) { |
| VisitNamedDecl(D); |
| Writer.AddSourceLocation(D->getLBracLoc(), Record); |
| Writer.AddSourceLocation(D->getRBracLoc(), Record); |
| Writer.AddDeclRef(D->getNextNamespace(), Record); |
| |
| // Only write one reference--original or anonymous |
| Record.push_back(D->isOriginalNamespace()); |
| if (D->isOriginalNamespace()) |
| Writer.AddDeclRef(D->getAnonymousNamespace(), Record); |
| else |
| Writer.AddDeclRef(D->getOriginalNamespace(), Record); |
| Code = pch::DECL_NAMESPACE; |
| } |
| |
| void PCHDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { |
| VisitNamedDecl(D); |
| Writer.AddSourceLocation(D->getAliasLoc(), Record); |
| Writer.AddSourceRange(D->getQualifierRange(), Record); |
| Writer.AddNestedNameSpecifier(D->getQualifier(), Record); |
| Writer.AddSourceLocation(D->getTargetNameLoc(), Record); |
| Writer.AddDeclRef(D->getNamespace(), Record); |
| Code = pch::DECL_NAMESPACE_ALIAS; |
| } |
| |
| void PCHDeclWriter::VisitUsingDecl(UsingDecl *D) { |
| VisitNamedDecl(D); |
| Writer.AddSourceRange(D->getNestedNameRange(), Record); |
| Writer.AddSourceLocation(D->getUsingLocation(), Record); |
| Writer.AddNestedNameSpecifier(D->getTargetNestedNameDecl(), Record); |
| Record.push_back(D->getNumShadowDecls()); |
| for (UsingDecl::shadow_iterator P = D->shadow_begin(), |
| PEnd = D->shadow_end(); P != PEnd; ++P) |
| Writer.AddDeclRef(*P, Record); |
| Record.push_back(D->isTypeName()); |
| Writer.AddDeclRef(Context.getInstantiatedFromUsingDecl(D), Record); |
| Code = pch::DECL_USING; |
| } |
| |
| void PCHDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) { |
| VisitNamedDecl(D); |
| Writer.AddDeclRef(D->getTargetDecl(), Record); |
| Writer.AddDeclRef(D->getUsingDecl(), Record); |
| Writer.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D), Record); |
| Code = pch::DECL_USING_SHADOW; |
| } |
| |
| void PCHDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { |
| VisitNamedDecl(D); |
| Writer.AddSourceLocation(D->getNamespaceKeyLocation(), Record); |
| Writer.AddSourceRange(D->getQualifierRange(), Record); |
| Writer.AddNestedNameSpecifier(D->getQualifier(), Record); |
| Writer.AddSourceLocation(D->getIdentLocation(), Record); |
| Writer.AddDeclRef(D->getNominatedNamespace(), Record); |
| Writer.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()), Record); |
| Code = pch::DECL_USING_DIRECTIVE; |
| } |
| |
| void PCHDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { |
| VisitValueDecl(D); |
| Writer.AddSourceRange(D->getTargetNestedNameRange(), Record); |
| Writer.AddSourceLocation(D->getUsingLoc(), Record); |
| Writer.AddNestedNameSpecifier(D->getTargetNestedNameSpecifier(), Record); |
| Code = pch::DECL_UNRESOLVED_USING_VALUE; |
| } |
| |
| void PCHDeclWriter::VisitUnresolvedUsingTypenameDecl( |
| UnresolvedUsingTypenameDecl *D) { |
| VisitTypeDecl(D); |
| Writer.AddSourceRange(D->getTargetNestedNameRange(), Record); |
| Writer.AddSourceLocation(D->getUsingLoc(), Record); |
| Writer.AddSourceLocation(D->getTypenameLoc(), Record); |
| Writer.AddNestedNameSpecifier(D->getTargetNestedNameSpecifier(), Record); |
| Code = pch::DECL_UNRESOLVED_USING_TYPENAME; |
| } |
| |
| void PCHDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) { |
| // See comments at PCHDeclReader::VisitCXXRecordDecl about why this happens |
| // before VisitRecordDecl. |
| enum { Data_NoDefData, Data_Owner, Data_NotOwner }; |
| bool OwnsDefinitionData = false; |
| if (D->DefinitionData) { |
| assert(D->DefinitionData->Definition && |
| "DefinitionData don't point to a definition decl!"); |
| OwnsDefinitionData = D->DefinitionData->Definition == D; |
| if (OwnsDefinitionData) { |
| Record.push_back(Data_Owner); |
| } else { |
| Record.push_back(Data_NotOwner); |
| Writer.AddDeclRef(D->DefinitionData->Definition, Record); |
| } |
| } else |
| Record.push_back(Data_NoDefData); |
| |
| VisitRecordDecl(D); |
| |
| if (OwnsDefinitionData) { |
| assert(D->DefinitionData); |
| struct CXXRecordDecl::DefinitionData &Data = *D->DefinitionData; |
| |
| Record.push_back(Data.UserDeclaredConstructor); |
| Record.push_back(Data.UserDeclaredCopyConstructor); |
| Record.push_back(Data.UserDeclaredCopyAssignment); |
| Record.push_back(Data.UserDeclaredDestructor); |
| Record.push_back(Data.Aggregate); |
| Record.push_back(Data.PlainOldData); |
| Record.push_back(Data.Empty); |
| Record.push_back(Data.Polymorphic); |
| Record.push_back(Data.Abstract); |
| Record.push_back(Data.HasTrivialConstructor); |
| Record.push_back(Data.HasTrivialCopyConstructor); |
| Record.push_back(Data.HasTrivialCopyAssignment); |
| Record.push_back(Data.HasTrivialDestructor); |
| Record.push_back(Data.ComputedVisibleConversions); |
| Record.push_back(Data.DeclaredDefaultConstructor); |
| Record.push_back(Data.DeclaredCopyConstructor); |
| Record.push_back(Data.DeclaredCopyAssignment); |
| Record.push_back(Data.DeclaredDestructor); |
| |
| Record.push_back(D->getNumBases()); |
| for (CXXRecordDecl::base_class_iterator I = D->bases_begin(), |
| E = D->bases_end(); I != E; ++I) |
| Writer.AddCXXBaseSpecifier(*I, Record); |
| |
| // FIXME: Make VBases lazily computed when needed to avoid storing them. |
| Record.push_back(D->getNumVBases()); |
| for (CXXRecordDecl::base_class_iterator I = D->vbases_begin(), |
| E = D->vbases_end(); I != E; ++I) |
| Writer.AddCXXBaseSpecifier(*I, Record); |
| |
| Writer.AddUnresolvedSet(Data.Conversions, Record); |
| Writer.AddUnresolvedSet(Data.VisibleConversions, Record); |
| // Data.Definition is written at the top. |
| Writer.AddDeclRef(Data.FirstFriend, Record); |
| } |
| |
| enum { |
| CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization |
| }; |
| if (ClassTemplateDecl *TemplD = D->getDescribedClassTemplate()) { |
| Record.push_back(CXXRecTemplate); |
| Writer.AddDeclRef(TemplD, Record); |
| } else if (MemberSpecializationInfo *MSInfo |
| = D->getMemberSpecializationInfo()) { |
| Record.push_back(CXXRecMemberSpecialization); |
| Writer.AddDeclRef(MSInfo->getInstantiatedFrom(), Record); |
| Record.push_back(MSInfo->getTemplateSpecializationKind()); |
| Writer.AddSourceLocation(MSInfo->getPointOfInstantiation(), Record); |
| } else { |
| Record.push_back(CXXRecNotTemplate); |
| } |
| |
| Code = pch::DECL_CXX_RECORD; |
| } |
| |
| void PCHDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) { |
| VisitFunctionDecl(D); |
| Record.push_back(D->size_overridden_methods()); |
| for (CXXMethodDecl::method_iterator |
| I = D->begin_overridden_methods(), E = D->end_overridden_methods(); |
| I != E; ++I) |
| Writer.AddDeclRef(*I, Record); |
| Code = pch::DECL_CXX_METHOD; |
| } |
| |
| void PCHDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) { |
| VisitCXXMethodDecl(D); |
| |
| Record.push_back(D->IsExplicitSpecified); |
| Record.push_back(D->ImplicitlyDefined); |
| |
| Record.push_back(D->NumBaseOrMemberInitializers); |
| for (unsigned i=0; i != D->NumBaseOrMemberInitializers; ++i) { |
| CXXBaseOrMemberInitializer *Init = D->BaseOrMemberInitializers[i]; |
| |
| Record.push_back(Init->isBaseInitializer()); |
| if (Init->isBaseInitializer()) { |
| Writer.AddTypeSourceInfo(Init->getBaseClassInfo(), Record); |
| Record.push_back(Init->isBaseVirtual()); |
| } else { |
| Writer.AddDeclRef(Init->getMember(), Record); |
| } |
| Writer.AddSourceLocation(Init->getMemberLocation(), Record); |
| Writer.AddStmt(Init->getInit()); |
| Writer.AddDeclRef(Init->getAnonUnionMember(), Record); |
| Writer.AddSourceLocation(Init->getLParenLoc(), Record); |
| Writer.AddSourceLocation(Init->getRParenLoc(), Record); |
| Record.push_back(Init->isWritten()); |
| if (Init->isWritten()) { |
| Record.push_back(Init->getSourceOrder()); |
| } else { |
| Record.push_back(Init->getNumArrayIndices()); |
| for (unsigned i=0, e=Init->getNumArrayIndices(); i != e; ++i) |
| Writer.AddDeclRef(Init->getArrayIndex(i), Record); |
| } |
| } |
| |
| Code = pch::DECL_CXX_CONSTRUCTOR; |
| } |
| |
| void PCHDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) { |
| VisitCXXMethodDecl(D); |
| |
| Record.push_back(D->ImplicitlyDefined); |
| Writer.AddDeclRef(D->OperatorDelete, Record); |
| |
| Code = pch::DECL_CXX_DESTRUCTOR; |
| } |
| |
| void PCHDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) { |
| VisitCXXMethodDecl(D); |
| Record.push_back(D->IsExplicitSpecified); |
| Code = pch::DECL_CXX_CONVERSION; |
| } |
| |
| void PCHDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) { |
| VisitDecl(D); |
| Writer.AddSourceLocation(D->getColonLoc(), Record); |
| Code = pch::DECL_ACCESS_SPEC; |
| } |
| |
| void PCHDeclWriter::VisitFriendDecl(FriendDecl *D) { |
| VisitDecl(D); |
| Record.push_back(D->Friend.is<TypeSourceInfo*>()); |
| if (D->Friend.is<TypeSourceInfo*>()) |
| Writer.AddTypeSourceInfo(D->Friend.get<TypeSourceInfo*>(), Record); |
| else |
| Writer.AddDeclRef(D->Friend.get<NamedDecl*>(), Record); |
| Writer.AddDeclRef(D->NextFriend, Record); |
| Writer.AddSourceLocation(D->FriendLoc, Record); |
| Code = pch::DECL_FRIEND; |
| } |
| |
| void PCHDeclWriter::VisitFriendTemplateDecl(FriendTemplateDecl *D) { |
| VisitDecl(D); |
| Record.push_back(D->getNumTemplateParameters()); |
| for (unsigned i = 0, e = D->getNumTemplateParameters(); i != e; ++i) |
| Writer.AddTemplateParameterList(D->getTemplateParameterList(i), Record); |
| Record.push_back(D->getFriendDecl() != 0); |
| if (D->getFriendDecl()) |
| Writer.AddDeclRef(D->getFriendDecl(), Record); |
| else |
| Writer.AddTypeSourceInfo(D->getFriendType(), Record); |
| Writer.AddSourceLocation(D->getFriendLoc(), Record); |
| Code = pch::DECL_FRIEND_TEMPLATE; |
| } |
| |
| void PCHDeclWriter::VisitTemplateDecl(TemplateDecl *D) { |
| VisitNamedDecl(D); |
| |
| Writer.AddDeclRef(D->getTemplatedDecl(), Record); |
| Writer.AddTemplateParameterList(D->getTemplateParameters(), Record); |
| } |
| |
| void PCHDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) { |
| VisitTemplateDecl(D); |
| |
| Record.push_back(D->getIdentifierNamespace()); |
| Writer.AddDeclRef(D->getPreviousDeclaration(), Record); |
| if (D->getPreviousDeclaration() == 0) { |
| // This TemplateDecl owns the CommonPtr; write it. |
| assert(D->isCanonicalDecl()); |
| |
| Writer.AddDeclRef(D->getInstantiatedFromMemberTemplate(), Record); |
| if (D->getInstantiatedFromMemberTemplate()) |
| Record.push_back(D->isMemberSpecialization()); |
| |
| Writer.AddDeclRef(D->getCommonPtr()->Latest, Record); |
| } |
| } |
| |
| void PCHDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) { |
| VisitRedeclarableTemplateDecl(D); |
| |
| if (D->getPreviousDeclaration() == 0) { |
| typedef llvm::FoldingSet<ClassTemplateSpecializationDecl> CTSDSetTy; |
| CTSDSetTy &CTSDSet = D->getSpecializations(); |
| Record.push_back(CTSDSet.size()); |
| for (CTSDSetTy::iterator I=CTSDSet.begin(), E = CTSDSet.end(); I!=E; ++I) { |
| assert(I->isCanonicalDecl() && "Expected only canonical decls in set"); |
| Writer.AddDeclRef(&*I, Record); |
| } |
| |
| typedef llvm::FoldingSet<ClassTemplatePartialSpecializationDecl> CTPSDSetTy; |
| CTPSDSetTy &CTPSDSet = D->getPartialSpecializations(); |
| Record.push_back(CTPSDSet.size()); |
| for (CTPSDSetTy::iterator I=CTPSDSet.begin(), E=CTPSDSet.end(); I!=E; ++I) { |
| assert(I->isCanonicalDecl() && "Expected only canonical decls in set"); |
| Writer.AddDeclRef(&*I, Record); |
| } |
| |
| // InjectedClassNameType is computed, no need to write it. |
| } |
| Code = pch::DECL_CLASS_TEMPLATE; |
| } |
| |
| void PCHDeclWriter::VisitClassTemplateSpecializationDecl( |
| ClassTemplateSpecializationDecl *D) { |
| VisitCXXRecordDecl(D); |
| |
| llvm::PointerUnion<ClassTemplateDecl *, |
| ClassTemplatePartialSpecializationDecl *> InstFrom |
| = D->getSpecializedTemplateOrPartial(); |
| if (InstFrom.is<ClassTemplateDecl *>()) { |
| Writer.AddDeclRef(InstFrom.get<ClassTemplateDecl *>(), Record); |
| } else { |
| Writer.AddDeclRef(InstFrom.get<ClassTemplatePartialSpecializationDecl *>(), |
| Record); |
| Writer.AddTemplateArgumentList(&D->getTemplateInstantiationArgs(), Record); |
| } |
| |
| // Explicit info. |
| Writer.AddTypeSourceInfo(D->getTypeAsWritten(), Record); |
| if (D->getTypeAsWritten()) { |
| Writer.AddSourceLocation(D->getExternLoc(), Record); |
| Writer.AddSourceLocation(D->getTemplateKeywordLoc(), Record); |
| } |
| |
| Writer.AddTemplateArgumentList(&D->getTemplateArgs(), Record); |
| Writer.AddSourceLocation(D->getPointOfInstantiation(), Record); |
| Record.push_back(D->getSpecializationKind()); |
| |
| if (D->isCanonicalDecl()) { |
| // When reading, we'll add it to the folding set of the following template. |
| Writer.AddDeclRef(D->getSpecializedTemplate()->getCanonicalDecl(), Record); |
| } |
| |
| Code = pch::DECL_CLASS_TEMPLATE_SPECIALIZATION; |
| } |
| |
| void PCHDeclWriter::VisitClassTemplatePartialSpecializationDecl( |
| ClassTemplatePartialSpecializationDecl *D) { |
| VisitClassTemplateSpecializationDecl(D); |
| |
| Writer.AddTemplateParameterList(D->getTemplateParameters(), Record); |
| |
| Record.push_back(D->getNumTemplateArgsAsWritten()); |
| for (int i = 0, e = D->getNumTemplateArgsAsWritten(); i != e; ++i) |
| Writer.AddTemplateArgumentLoc(D->getTemplateArgsAsWritten()[i], Record); |
| |
| Record.push_back(D->getSequenceNumber()); |
| |
| // These are read/set from/to the first declaration. |
| if (D->getPreviousDeclaration() == 0) { |
| Writer.AddDeclRef(D->getInstantiatedFromMember(), Record); |
| Record.push_back(D->isMemberSpecialization()); |
| } |
| |
| Code = pch::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION; |
| } |
| |
| void PCHDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { |
| VisitRedeclarableTemplateDecl(D); |
| |
| if (D->getPreviousDeclaration() == 0) { |
| // This FunctionTemplateDecl owns the CommonPtr; write it. |
| |
| // Write the function specialization declarations. |
| Record.push_back(D->getSpecializations().size()); |
| for (llvm::FoldingSet<FunctionTemplateSpecializationInfo>::iterator |
| I = D->getSpecializations().begin(), |
| E = D->getSpecializations().end() ; I != E; ++I) { |
| assert(I->Function->isCanonicalDecl() && |
| "Expected only canonical decls in set"); |
| Writer.AddDeclRef(I->Function, Record); |
| } |
| } |
| Code = pch::DECL_FUNCTION_TEMPLATE; |
| } |
| |
| void PCHDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) { |
| VisitTypeDecl(D); |
| |
| Record.push_back(D->wasDeclaredWithTypename()); |
| Record.push_back(D->isParameterPack()); |
| Record.push_back(D->defaultArgumentWasInherited()); |
| Writer.AddTypeSourceInfo(D->getDefaultArgumentInfo(), Record); |
| |
| Code = pch::DECL_TEMPLATE_TYPE_PARM; |
| } |
| |
| void PCHDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) { |
| VisitVarDecl(D); |
| // TemplateParmPosition. |
| Record.push_back(D->getDepth()); |
| Record.push_back(D->getPosition()); |
| // Rest of NonTypeTemplateParmDecl. |
| Record.push_back(D->getDefaultArgument() != 0); |
| if (D->getDefaultArgument()) { |
| Writer.AddStmt(D->getDefaultArgument()); |
| Record.push_back(D->defaultArgumentWasInherited()); |
| } |
| Code = pch::DECL_NON_TYPE_TEMPLATE_PARM; |
| } |
| |
| void PCHDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) { |
| VisitTemplateDecl(D); |
| // TemplateParmPosition. |
| Record.push_back(D->getDepth()); |
| Record.push_back(D->getPosition()); |
| // Rest of TemplateTemplateParmDecl. |
| Writer.AddTemplateArgumentLoc(D->getDefaultArgument(), Record); |
| Record.push_back(D->defaultArgumentWasInherited()); |
| Code = pch::DECL_TEMPLATE_TEMPLATE_PARM; |
| } |
| |
| void PCHDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) { |
| VisitDecl(D); |
| Writer.AddStmt(D->getAssertExpr()); |
| Writer.AddStmt(D->getMessage()); |
| Code = pch::DECL_STATIC_ASSERT; |
| } |
| |
| /// \brief Emit the DeclContext part of a declaration context decl. |
| /// |
| /// \param LexicalOffset the offset at which the DECL_CONTEXT_LEXICAL |
| /// block for this declaration context is stored. May be 0 to indicate |
| /// that there are no declarations stored within this context. |
| /// |
| /// \param VisibleOffset the offset at which the DECL_CONTEXT_VISIBLE |
| /// block for this declaration context is stored. May be 0 to indicate |
| /// that there are no declarations visible from this context. Note |
| /// that this value will not be emitted for non-primary declaration |
| /// contexts. |
| void PCHDeclWriter::VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset, |
| uint64_t VisibleOffset) { |
| Record.push_back(LexicalOffset); |
| Record.push_back(VisibleOffset); |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // PCHWriter Implementation |
| //===----------------------------------------------------------------------===// |
| |
| void PCHWriter::WriteDeclsBlockAbbrevs() { |
| using namespace llvm; |
| // Abbreviation for DECL_PARM_VAR. |
| BitCodeAbbrev *Abv = new BitCodeAbbrev(); |
| Abv->Add(BitCodeAbbrevOp(pch::DECL_PARM_VAR)); |
| |
| // Decl |
| Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext |
| Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext |
| Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location |
| Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl (!?) |
| Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs |
| Abv->Add(BitCodeAbbrevOp(0)); // isImplicit |
| Abv->Add(BitCodeAbbrevOp(0)); // isUsed |
| Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier |
| Abv->Add(BitCodeAbbrevOp(0)); // PCH level |
| |
| // NamedDecl |
| Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier |
| Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name |
| // ValueDecl |
| Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type |
| // DeclaratorDecl |
| Abv->Add(BitCodeAbbrevOp(pch::PREDEF_TYPE_NULL_ID)); // InfoType |
| // VarDecl |
| Abv->Add(BitCodeAbbrevOp(0)); // StorageClass |
| Abv->Add(BitCodeAbbrevOp(0)); // StorageClassAsWritten |
| Abv->Add(BitCodeAbbrevOp(0)); // isThreadSpecified |
| Abv->Add(BitCodeAbbrevOp(0)); // hasCXXDirectInitializer |
| Abv->Add(BitCodeAbbrevOp(0)); // isDeclaredInCondition |
| Abv->Add(BitCodeAbbrevOp(0)); // isExceptionVariable |
| Abv->Add(BitCodeAbbrevOp(0)); // isNRVOVariable |
| Abv->Add(BitCodeAbbrevOp(0)); // PrevDecl |
| Abv->Add(BitCodeAbbrevOp(0)); // HasInit |
| Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo |
| // ParmVarDecl |
| Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier |
| Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg |
| Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg |
| |
| ParmVarDeclAbbrev = Stream.EmitAbbrev(Abv); |
| |
| Abv = new BitCodeAbbrev(); |
| Abv->Add(BitCodeAbbrevOp(pch::DECL_CONTEXT_LEXICAL)); |
| Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); |
| DeclContextLexicalAbbrev = Stream.EmitAbbrev(Abv); |
| } |
| |
| /// isRequiredDecl - Check if this is a "required" Decl, which must be seen by |
| /// consumers of the AST. |
| /// |
| /// Such decls will always be deserialized from the PCH file, so we would like |
| /// this to be as restrictive as possible. Currently the predicate is driven by |
| /// code generation requirements, if other clients have a different notion of |
| /// what is "required" then we may have to consider an alternate scheme where |
| /// clients can iterate over the top-level decls and get information on them, |
| /// without necessary deserializing them. We could explicitly require such |
| /// clients to use a separate API call to "realize" the decl. This should be |
| /// relatively painless since they would presumably only do it for top-level |
| /// decls. |
| // |
| // FIXME: This predicate is essentially IRgen's predicate to determine whether a |
| // declaration can be deferred. Merge them somehow. |
| static bool isRequiredDecl(const Decl *D, ASTContext &Context) { |
| // File scoped assembly must be seen. |
| if (isa<FileScopeAsmDecl>(D)) |
| return true; |
| |
| // Otherwise if this isn't a function or a file scoped variable it doesn't |
| // need to be seen. |
| if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { |
| if (!VD->isFileVarDecl()) |
| return false; |
| } else if (!isa<FunctionDecl>(D)) |
| return false; |
| |
| // Aliases and used decls must be seen. |
| if (D->hasAttr<AliasAttr>() || D->hasAttr<UsedAttr>()) |
| return true; |
| |
| if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
| // Forward declarations don't need to be seen. |
| if (!FD->isThisDeclarationADefinition()) |
| return false; |
| |
| // Constructors and destructors must be seen. |
| if (FD->hasAttr<ConstructorAttr>() || FD->hasAttr<DestructorAttr>()) |
| return true; |
| |
| // Otherwise, this is required unless it is static. |
| // |
| // FIXME: Inlines. |
| return FD->getStorageClass() != FunctionDecl::Static; |
| } else { |
| const VarDecl *VD = cast<VarDecl>(D); |
| |
| // Structs that have non-trivial constructors or destructors must be seen. |
| if (const RecordType *RT = VD->getType()->getAs<RecordType>()) { |
| if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(RT->getDecl())) { |
| if (!RD->hasTrivialConstructor() || !RD->hasTrivialDestructor()) |
| return true; |
| } |
| } |
| |
| // In C++, this doesn't need to be seen if it is marked "extern". |
| if (Context.getLangOptions().CPlusPlus && !VD->getInit() && |
| (VD->getStorageClass() == VarDecl::Extern || |
| VD->isExternC())) |
| return false; |
| |
| // In C, this doesn't need to be seen unless it is a definition. |
| if (!Context.getLangOptions().CPlusPlus && !VD->getInit()) |
| return false; |
| |
| // Otherwise, this is required unless it is static. |
| return VD->getStorageClass() != VarDecl::Static; |
| } |
| } |
| |
| void PCHWriter::WriteDecl(ASTContext &Context, Decl *D) { |
| RecordData Record; |
| PCHDeclWriter W(*this, Context, Record); |
| |
| // If this declaration is also a DeclContext, write blocks for the |
| // declarations that lexically stored inside its context and those |
| // declarations that are visible from its context. These blocks |
| // are written before the declaration itself so that we can put |
| // their offsets into the record for the declaration. |
| uint64_t LexicalOffset = 0; |
| uint64_t VisibleOffset = 0; |
| DeclContext *DC = dyn_cast<DeclContext>(D); |
| if (DC) { |
| LexicalOffset = WriteDeclContextLexicalBlock(Context, DC); |
| VisibleOffset = WriteDeclContextVisibleBlock(Context, DC); |
| } |
| |
| // Determine the ID for this declaration |
| pch::DeclID &ID = DeclIDs[D]; |
| if (ID == 0) |
| ID = NextDeclID++; |
| |
| unsigned Index = ID - FirstDeclID; |
| |
| // Record the offset for this declaration |
| if (DeclOffsets.size() == Index) |
| DeclOffsets.push_back(Stream.GetCurrentBitNo()); |
| else if (DeclOffsets.size() < Index) { |
| DeclOffsets.resize(Index+1); |
| DeclOffsets[Index] = Stream.GetCurrentBitNo(); |
| } |
| |
| // Build and emit a record for this declaration |
| Record.clear(); |
| W.Code = (pch::DeclCode)0; |
| W.AbbrevToUse = 0; |
| W.Visit(D); |
| if (DC) W.VisitDeclContext(DC, LexicalOffset, VisibleOffset); |
| |
| if (!W.Code) |
| llvm::report_fatal_error(llvm::StringRef("unexpected declaration kind '") + |
| D->getDeclKindName() + "'"); |
| Stream.EmitRecord(W.Code, Record, W.AbbrevToUse); |
| |
| // If the declaration had any attributes, write them now. |
| if (D->hasAttrs()) |
| WriteAttributeRecord(D->getAttrs()); |
| |
| // Flush any expressions that were written as part of this declaration. |
| FlushStmts(); |
| |
| // Note "external" declarations so that we can add them to a record in the |
| // PCH file later. |
| // |
| // FIXME: This should be renamed, the predicate is much more complicated. |
| if (isRequiredDecl(D, Context)) |
| ExternalDefinitions.push_back(Index + 1); |
| } |