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-rw-r--r--clang/lib/Serialization/ASTWriterDecl.cpp1728
1 files changed, 1728 insertions, 0 deletions
diff --git a/clang/lib/Serialization/ASTWriterDecl.cpp b/clang/lib/Serialization/ASTWriterDecl.cpp
new file mode 100644
index 0000000..1ee3ac4
--- /dev/null
+++ b/clang/lib/Serialization/ASTWriterDecl.cpp
@@ -0,0 +1,1728 @@
+//===--- ASTWriterDecl.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/Serialization/ASTWriter.h"
+#include "clang/Serialization/ASTReader.h"
+#include "ASTCommon.h"
+#include "clang/AST/DeclVisitor.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclTemplate.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/DeclContextInternals.h"
+#include "clang/Basic/SourceManager.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Bitcode/BitstreamWriter.h"
+#include "llvm/Support/ErrorHandling.h"
+using namespace clang;
+using namespace serialization;
+
+//===----------------------------------------------------------------------===//
+// Declaration serialization
+//===----------------------------------------------------------------------===//
+
+namespace clang {
+ class ASTDeclWriter : public DeclVisitor<ASTDeclWriter, void> {
+
+ ASTWriter &Writer;
+ ASTContext &Context;
+ typedef ASTWriter::RecordData RecordData;
+ RecordData &Record;
+
+ public:
+ serialization::DeclCode Code;
+ unsigned AbbrevToUse;
+
+ ASTDeclWriter(ASTWriter &Writer, ASTContext &Context, 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 VisitLabelDecl(LabelDecl *LD);
+ void VisitNamespaceDecl(NamespaceDecl *D);
+ void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
+ void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
+ void VisitTypeDecl(TypeDecl *D);
+ void VisitTypedefNameDecl(TypedefNameDecl *D);
+ void VisitTypedefDecl(TypedefDecl *D);
+ void VisitTypeAliasDecl(TypeAliasDecl *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 VisitClassScopeFunctionSpecializationDecl(
+ ClassScopeFunctionSpecializationDecl *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 VisitIndirectFieldDecl(IndirectFieldDecl *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 VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D);
+ void VisitUsingDecl(UsingDecl *D);
+ void VisitUsingShadowDecl(UsingShadowDecl *D);
+ void VisitLinkageSpecDecl(LinkageSpecDecl *D);
+ void VisitFileScopeAsmDecl(FileScopeAsmDecl *D);
+ void VisitImportDecl(ImportDecl *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);
+ template <typename T> void VisitRedeclarable(Redeclarable<T> *D);
+
+
+ // 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 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 ASTDeclWriter::Visit(Decl *D) {
+ DeclVisitor<ASTDeclWriter>::Visit(D);
+
+ // Source locations require array (variable-length) abbreviations. The
+ // abbreviation infrastructure requires that arrays are encoded last, so
+ // we handle it here in the case of those classes derived from DeclaratorDecl
+ if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)){
+ Writer.AddTypeSourceInfo(DD->getTypeSourceInfo(), Record);
+ }
+
+ // 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 AST, we'll just lazily set the offset.
+ if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
+ Record.push_back(FD->doesThisDeclarationHaveABody());
+ if (FD->doesThisDeclarationHaveABody())
+ Writer.AddStmt(FD->getBody());
+ }
+}
+
+void ASTDeclWriter::VisitDecl(Decl *D) {
+ Writer.AddDeclRef(cast_or_null<Decl>(D->getDeclContext()), Record);
+ Writer.AddDeclRef(cast_or_null<Decl>(D->getLexicalDeclContext()), Record);
+ Record.push_back(D->isInvalidDecl());
+ Record.push_back(D->hasAttrs());
+ if (D->hasAttrs())
+ Writer.WriteAttributes(D->getAttrs(), Record);
+ Record.push_back(D->isImplicit());
+ Record.push_back(D->isUsed(false));
+ Record.push_back(D->isReferenced());
+ Record.push_back(D->isTopLevelDeclInObjCContainer());
+ Record.push_back(D->getAccess());
+ Record.push_back(D->isModulePrivate());
+ Record.push_back(Writer.inferSubmoduleIDFromLocation(D->getLocation()));
+}
+
+void ASTDeclWriter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
+ llvm_unreachable("Translation units aren't directly serialized");
+}
+
+void ASTDeclWriter::VisitNamedDecl(NamedDecl *D) {
+ VisitDecl(D);
+ Writer.AddDeclarationName(D->getDeclName(), Record);
+}
+
+void ASTDeclWriter::VisitTypeDecl(TypeDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getLocStart(), Record);
+ Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
+}
+
+void ASTDeclWriter::VisitTypedefNameDecl(TypedefNameDecl *D) {
+ VisitRedeclarable(D);
+ VisitTypeDecl(D);
+ Writer.AddTypeSourceInfo(D->getTypeSourceInfo(), Record);
+}
+
+void ASTDeclWriter::VisitTypedefDecl(TypedefDecl *D) {
+ VisitTypedefNameDecl(D);
+ if (!D->hasAttrs() &&
+ !D->isImplicit() &&
+ !D->isUsed(false) &&
+ D->getFirstDeclaration() == D->getMostRecentDecl() &&
+ !D->isInvalidDecl() &&
+ !D->isReferenced() &&
+ !D->isTopLevelDeclInObjCContainer() &&
+ D->getAccess() == AS_none &&
+ !D->isModulePrivate() &&
+ D->getDeclName().getNameKind() == DeclarationName::Identifier)
+ AbbrevToUse = Writer.getDeclTypedefAbbrev();
+
+ Code = serialization::DECL_TYPEDEF;
+}
+
+void ASTDeclWriter::VisitTypeAliasDecl(TypeAliasDecl *D) {
+ VisitTypedefNameDecl(D);
+ Code = serialization::DECL_TYPEALIAS;
+}
+
+void ASTDeclWriter::VisitTagDecl(TagDecl *D) {
+ VisitRedeclarable(D);
+ VisitTypeDecl(D);
+ Record.push_back(D->getIdentifierNamespace());
+ Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding
+ Record.push_back(D->isCompleteDefinition());
+ Record.push_back(D->isEmbeddedInDeclarator());
+ Record.push_back(D->isFreeStanding());
+ Writer.AddSourceLocation(D->getRBraceLoc(), Record);
+ Record.push_back(D->hasExtInfo());
+ if (D->hasExtInfo())
+ Writer.AddQualifierInfo(*D->getExtInfo(), Record);
+ else
+ Writer.AddDeclRef(D->getTypedefNameForAnonDecl(), Record);
+}
+
+void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) {
+ VisitTagDecl(D);
+ Writer.AddTypeSourceInfo(D->getIntegerTypeSourceInfo(), Record);
+ if (!D->getIntegerTypeSourceInfo())
+ Writer.AddTypeRef(D->getIntegerType(), Record);
+ Writer.AddTypeRef(D->getPromotionType(), Record);
+ Record.push_back(D->getNumPositiveBits());
+ Record.push_back(D->getNumNegativeBits());
+ Record.push_back(D->isScoped());
+ Record.push_back(D->isScopedUsingClassTag());
+ Record.push_back(D->isFixed());
+ if (MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo()) {
+ Writer.AddDeclRef(MemberInfo->getInstantiatedFrom(), Record);
+ Record.push_back(MemberInfo->getTemplateSpecializationKind());
+ Writer.AddSourceLocation(MemberInfo->getPointOfInstantiation(), Record);
+ } else {
+ Writer.AddDeclRef(0, Record);
+ }
+
+ if (!D->hasAttrs() &&
+ !D->isImplicit() &&
+ !D->isUsed(false) &&
+ !D->hasExtInfo() &&
+ D->getFirstDeclaration() == D->getMostRecentDecl() &&
+ !D->isInvalidDecl() &&
+ !D->isReferenced() &&
+ !D->isTopLevelDeclInObjCContainer() &&
+ D->getAccess() == AS_none &&
+ !D->isModulePrivate() &&
+ !CXXRecordDecl::classofKind(D->getKind()) &&
+ !D->getIntegerTypeSourceInfo() &&
+ D->getDeclName().getNameKind() == DeclarationName::Identifier)
+ AbbrevToUse = Writer.getDeclEnumAbbrev();
+
+ Code = serialization::DECL_ENUM;
+}
+
+void ASTDeclWriter::VisitRecordDecl(RecordDecl *D) {
+ VisitTagDecl(D);
+ Record.push_back(D->hasFlexibleArrayMember());
+ Record.push_back(D->isAnonymousStructOrUnion());
+ Record.push_back(D->hasObjectMember());
+
+ if (!D->hasAttrs() &&
+ !D->isImplicit() &&
+ !D->isUsed(false) &&
+ !D->hasExtInfo() &&
+ D->getFirstDeclaration() == D->getMostRecentDecl() &&
+ !D->isInvalidDecl() &&
+ !D->isReferenced() &&
+ !D->isTopLevelDeclInObjCContainer() &&
+ D->getAccess() == AS_none &&
+ !D->isModulePrivate() &&
+ !CXXRecordDecl::classofKind(D->getKind()) &&
+ D->getDeclName().getNameKind() == DeclarationName::Identifier)
+ AbbrevToUse = Writer.getDeclRecordAbbrev();
+
+ Code = serialization::DECL_RECORD;
+}
+
+void ASTDeclWriter::VisitValueDecl(ValueDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddTypeRef(D->getType(), Record);
+}
+
+void ASTDeclWriter::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 = serialization::DECL_ENUM_CONSTANT;
+}
+
+void ASTDeclWriter::VisitDeclaratorDecl(DeclaratorDecl *D) {
+ VisitValueDecl(D);
+ Writer.AddSourceLocation(D->getInnerLocStart(), Record);
+ Record.push_back(D->hasExtInfo());
+ if (D->hasExtInfo())
+ Writer.AddQualifierInfo(*D->getExtInfo(), Record);
+}
+
+void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) {
+ VisitRedeclarable(D);
+ VisitDeclaratorDecl(D);
+
+ Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
+ Record.push_back(D->getIdentifierNamespace());
+
+ // FunctionDecl's body is handled last at ASTWriterDecl::Visit,
+ // after everything else is written.
+
+ Record.push_back(D->getStorageClass()); // FIXME: stable encoding
+ Record.push_back(D->getStorageClassAsWritten());
+ Record.push_back(D->IsInline);
+ 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->isDeletedAsWritten());
+ Record.push_back(D->isTrivial());
+ Record.push_back(D->isDefaulted());
+ Record.push_back(D->isExplicitlyDefaulted());
+ Record.push_back(D->hasImplicitReturnZero());
+ Record.push_back(D->isConstexpr());
+ Writer.AddSourceLocation(D->getLocEnd(), Record);
+
+ Record.push_back(D->getTemplatedKind());
+ switch (D->getTemplatedKind()) {
+ 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();
+ Writer.AddDeclRef(FTSInfo->getTemplate(), 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->NumTemplateArgs);
+ for (int i=0, e = FTSInfo->TemplateArgumentsAsWritten->NumTemplateArgs;
+ i!=e; ++i)
+ Writer.AddTemplateArgumentLoc((*FTSInfo->TemplateArgumentsAsWritten)[i],
+ Record);
+ Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->LAngleLoc,
+ Record);
+ Writer.AddSourceLocation(FTSInfo->TemplateArgumentsAsWritten->RAngleLoc,
+ Record);
+ }
+
+ Writer.AddSourceLocation(FTSInfo->getPointOfInstantiation(), Record);
+
+ if (D->isCanonicalDecl()) {
+ // Write the template that contains the specializations set. We will
+ // add a FunctionTemplateSpecializationInfo to it when reading.
+ Writer.AddDeclRef(FTSInfo->getTemplate()->getCanonicalDecl(), 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;
+ }
+ }
+
+ 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 = serialization::DECL_FUNCTION;
+}
+
+void ASTDeclWriter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
+ VisitNamedDecl(D);
+ // FIXME: convert to LazyStmtPtr?
+ // Unlike C/C++, method bodies will never be in header files.
+ bool HasBodyStuff = D->getBody() != 0 ||
+ D->getSelfDecl() != 0 || D->getCmdDecl() != 0;
+ Record.push_back(HasBodyStuff);
+ if (HasBodyStuff) {
+ 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());
+
+ Record.push_back(D->IsRedeclaration);
+ Record.push_back(D->HasRedeclaration);
+ if (D->HasRedeclaration) {
+ assert(Context.getObjCMethodRedeclaration(D));
+ Writer.AddDeclRef(Context.getObjCMethodRedeclaration(D), Record);
+ }
+
+ // 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->hasRelatedResultType());
+ 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);
+
+ Record.push_back(D->SelLocsKind);
+ unsigned NumStoredSelLocs = D->getNumStoredSelLocs();
+ SourceLocation *SelLocs = D->getStoredSelLocs();
+ Record.push_back(NumStoredSelLocs);
+ for (unsigned i = 0; i != NumStoredSelLocs; ++i)
+ Writer.AddSourceLocation(SelLocs[i], Record);
+
+ Code = serialization::DECL_OBJC_METHOD;
+}
+
+void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getAtStartLoc(), Record);
+ Writer.AddSourceRange(D->getAtEndRange(), Record);
+ // Abstract class (no need to define a stable serialization::DECL code).
+}
+
+void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
+ VisitRedeclarable(D);
+ VisitObjCContainerDecl(D);
+ Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
+
+ Record.push_back(D->isThisDeclarationADefinition());
+ if (D->isThisDeclarationADefinition()) {
+ // Write the DefinitionData
+ ObjCInterfaceDecl::DefinitionData &Data = D->data();
+
+ Writer.AddDeclRef(D->getSuperClass(), Record);
+ Writer.AddSourceLocation(D->getSuperClassLoc(), Record);
+ Writer.AddSourceLocation(D->getEndOfDefinitionLoc(), Record);
+
+ // Write out the protocols that are directly referenced by the @interface.
+ Record.push_back(Data.ReferencedProtocols.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);
+
+ // Write out the protocols that are transitively referenced.
+ Record.push_back(Data.AllReferencedProtocols.size());
+ for (ObjCList<ObjCProtocolDecl>::iterator
+ P = Data.AllReferencedProtocols.begin(),
+ PEnd = Data.AllReferencedProtocols.end();
+ P != PEnd; ++P)
+ Writer.AddDeclRef(*P, Record);
+
+ if (ObjCCategoryDecl *Cat = D->getCategoryList()) {
+ // Ensure that we write out the set of categories for this class.
+ Writer.ObjCClassesWithCategories.insert(D);
+
+ // Make sure that the categories get serialized.
+ for (; Cat; Cat = Cat->getNextClassCategory())
+ (void)Writer.GetDeclRef(Cat);
+ }
+ }
+
+ Code = serialization::DECL_OBJC_INTERFACE;
+}
+
+void ASTDeclWriter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
+ VisitFieldDecl(D);
+ // FIXME: stable encoding for @public/@private/@protected/@package
+ Record.push_back(D->getAccessControl());
+ Record.push_back(D->getSynthesize());
+
+ if (!D->hasAttrs() &&
+ !D->isImplicit() &&
+ !D->isUsed(false) &&
+ !D->isInvalidDecl() &&
+ !D->isReferenced() &&
+ !D->isModulePrivate() &&
+ !D->getBitWidth() &&
+ !D->hasExtInfo() &&
+ D->getDeclName())
+ AbbrevToUse = Writer.getDeclObjCIvarAbbrev();
+
+ Code = serialization::DECL_OBJC_IVAR;
+}
+
+void ASTDeclWriter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
+ VisitRedeclarable(D);
+ VisitObjCContainerDecl(D);
+
+ Record.push_back(D->isThisDeclarationADefinition());
+ if (D->isThisDeclarationADefinition()) {
+ 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 = serialization::DECL_OBJC_PROTOCOL;
+}
+
+void ASTDeclWriter::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D) {
+ VisitFieldDecl(D);
+ Code = serialization::DECL_OBJC_AT_DEFS_FIELD;
+}
+
+void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
+ VisitObjCContainerDecl(D);
+ Writer.AddSourceLocation(D->getCategoryNameLoc(), Record);
+ Writer.AddSourceLocation(D->getIvarLBraceLoc(), Record);
+ Writer.AddSourceLocation(D->getIvarRBraceLoc(), Record);
+ 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);
+ Record.push_back(D->hasSynthBitfield());
+ Code = serialization::DECL_OBJC_CATEGORY;
+}
+
+void ASTDeclWriter::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddDeclRef(D->getClassInterface(), Record);
+ Code = serialization::DECL_OBJC_COMPATIBLE_ALIAS;
+}
+
+void ASTDeclWriter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getAtLoc(), Record);
+ Writer.AddSourceLocation(D->getLParenLoc(), 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 = serialization::DECL_OBJC_PROPERTY;
+}
+
+void ASTDeclWriter::VisitObjCImplDecl(ObjCImplDecl *D) {
+ VisitObjCContainerDecl(D);
+ Writer.AddDeclRef(D->getClassInterface(), Record);
+ // Abstract class (no need to define a stable serialization::DECL code).
+}
+
+void ASTDeclWriter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
+ VisitObjCImplDecl(D);
+ Writer.AddIdentifierRef(D->getIdentifier(), Record);
+ Writer.AddSourceLocation(D->getCategoryNameLoc(), Record);
+ Code = serialization::DECL_OBJC_CATEGORY_IMPL;
+}
+
+void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
+ VisitObjCImplDecl(D);
+ Writer.AddDeclRef(D->getSuperClass(), Record);
+ Writer.AddSourceLocation(D->getIvarLBraceLoc(), Record);
+ Writer.AddSourceLocation(D->getIvarRBraceLoc(), Record);
+ Writer.AddCXXCtorInitializers(D->IvarInitializers, D->NumIvarInitializers,
+ Record);
+ Record.push_back(D->hasSynthBitfield());
+ Code = serialization::DECL_OBJC_IMPLEMENTATION;
+}
+
+void ASTDeclWriter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
+ VisitDecl(D);
+ Writer.AddSourceLocation(D->getLocStart(), Record);
+ Writer.AddDeclRef(D->getPropertyDecl(), Record);
+ Writer.AddDeclRef(D->getPropertyIvarDecl(), Record);
+ Writer.AddSourceLocation(D->getPropertyIvarDeclLoc(), Record);
+ Writer.AddStmt(D->getGetterCXXConstructor());
+ Writer.AddStmt(D->getSetterCXXAssignment());
+ Code = serialization::DECL_OBJC_PROPERTY_IMPL;
+}
+
+void ASTDeclWriter::VisitFieldDecl(FieldDecl *D) {
+ VisitDeclaratorDecl(D);
+ Record.push_back(D->isMutable());
+ Record.push_back(D->getBitWidth()? 1 : D->hasInClassInitializer() ? 2 : 0);
+ if (D->getBitWidth())
+ Writer.AddStmt(D->getBitWidth());
+ else if (D->hasInClassInitializer())
+ Writer.AddStmt(D->getInClassInitializer());
+ if (!D->getDeclName())
+ Writer.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D), Record);
+
+ if (!D->hasAttrs() &&
+ !D->isImplicit() &&
+ !D->isUsed(false) &&
+ !D->isInvalidDecl() &&
+ !D->isReferenced() &&
+ !D->isTopLevelDeclInObjCContainer() &&
+ !D->isModulePrivate() &&
+ !D->getBitWidth() &&
+ !D->hasInClassInitializer() &&
+ !D->hasExtInfo() &&
+ !ObjCIvarDecl::classofKind(D->getKind()) &&
+ !ObjCAtDefsFieldDecl::classofKind(D->getKind()) &&
+ D->getDeclName())
+ AbbrevToUse = Writer.getDeclFieldAbbrev();
+
+ Code = serialization::DECL_FIELD;
+}
+
+void ASTDeclWriter::VisitIndirectFieldDecl(IndirectFieldDecl *D) {
+ VisitValueDecl(D);
+ Record.push_back(D->getChainingSize());
+
+ for (IndirectFieldDecl::chain_iterator
+ P = D->chain_begin(),
+ PEnd = D->chain_end(); P != PEnd; ++P)
+ Writer.AddDeclRef(*P, Record);
+ Code = serialization::DECL_INDIRECTFIELD;
+}
+
+void ASTDeclWriter::VisitVarDecl(VarDecl *D) {
+ VisitRedeclarable(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->getInitStyle());
+ Record.push_back(D->isExceptionVariable());
+ Record.push_back(D->isNRVOVariable());
+ Record.push_back(D->isCXXForRangeDecl());
+ Record.push_back(D->isARCPseudoStrong());
+ if (D->getInit()) {
+ Record.push_back(!D->isInitKnownICE() ? 1 : (D->isInitICE() ? 3 : 2));
+ Writer.AddStmt(D->getInit());
+ } else {
+ Record.push_back(0);
+ }
+
+ 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);
+ }
+
+ if (!D->hasAttrs() &&
+ !D->isImplicit() &&
+ !D->isUsed(false) &&
+ !D->isInvalidDecl() &&
+ !D->isReferenced() &&
+ !D->isTopLevelDeclInObjCContainer() &&
+ D->getAccess() == AS_none &&
+ !D->isModulePrivate() &&
+ D->getDeclName().getNameKind() == DeclarationName::Identifier &&
+ !D->hasExtInfo() &&
+ D->getFirstDeclaration() == D->getMostRecentDecl() &&
+ D->getInitStyle() == VarDecl::CInit &&
+ D->getInit() == 0 &&
+ !isa<ParmVarDecl>(D) &&
+ !SpecInfo)
+ AbbrevToUse = Writer.getDeclVarAbbrev();
+
+ Code = serialization::DECL_VAR;
+}
+
+void ASTDeclWriter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
+ VisitVarDecl(D);
+ Code = serialization::DECL_IMPLICIT_PARAM;
+}
+
+void ASTDeclWriter::VisitParmVarDecl(ParmVarDecl *D) {
+ VisitVarDecl(D);
+ Record.push_back(D->isObjCMethodParameter());
+ Record.push_back(D->getFunctionScopeDepth());
+ Record.push_back(D->getFunctionScopeIndex());
+ Record.push_back(D->getObjCDeclQualifier()); // FIXME: stable encoding
+ Record.push_back(D->isKNRPromoted());
+ Record.push_back(D->hasInheritedDefaultArg());
+ Record.push_back(D->hasUninstantiatedDefaultArg());
+ if (D->hasUninstantiatedDefaultArg())
+ Writer.AddStmt(D->getUninstantiatedDefaultArg());
+ Code = serialization::DECL_PARM_VAR;
+
+ assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl
+
+ // 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->hasAttrs() &&
+ !D->hasExtInfo() &&
+ !D->isImplicit() &&
+ !D->isUsed(false) &&
+ !D->isInvalidDecl() &&
+ !D->isReferenced() &&
+ D->getAccess() == AS_none &&
+ !D->isModulePrivate() &&
+ D->getStorageClass() == 0 &&
+ D->getInitStyle() == VarDecl::CInit && // Can params have anything else?
+ D->getFunctionScopeDepth() == 0 &&
+ D->getObjCDeclQualifier() == 0 &&
+ !D->isKNRPromoted() &&
+ !D->hasInheritedDefaultArg() &&
+ D->getInit() == 0 &&
+ !D->hasUninstantiatedDefaultArg()) // No default expr.
+ AbbrevToUse = Writer.getDeclParmVarAbbrev();
+
+ // Check things we know are true of *every* PARM_VAR_DECL, which is more than
+ // just us assuming it.
+ 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->isExceptionVariable() && "PARM_VAR_DECL can't be exception var");
+ assert(D->getPreviousDecl() == 0 && "PARM_VAR_DECL can't be redecl");
+ assert(!D->isStaticDataMember() &&
+ "PARM_VAR_DECL can't be static data member");
+}
+
+void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
+ VisitDecl(D);
+ Writer.AddStmt(D->getAsmString());
+ Writer.AddSourceLocation(D->getRParenLoc(), Record);
+ Code = serialization::DECL_FILE_SCOPE_ASM;
+}
+
+void ASTDeclWriter::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);
+ Record.push_back(D->isVariadic());
+ Record.push_back(D->blockMissingReturnType());
+ Record.push_back(D->isConversionFromLambda());
+ Record.push_back(D->capturesCXXThis());
+ Record.push_back(D->getNumCaptures());
+ for (BlockDecl::capture_iterator
+ i = D->capture_begin(), e = D->capture_end(); i != e; ++i) {
+ const BlockDecl::Capture &capture = *i;
+ Writer.AddDeclRef(capture.getVariable(), Record);
+
+ unsigned flags = 0;
+ if (capture.isByRef()) flags |= 1;
+ if (capture.isNested()) flags |= 2;
+ if (capture.hasCopyExpr()) flags |= 4;
+ Record.push_back(flags);
+
+ if (capture.hasCopyExpr()) Writer.AddStmt(capture.getCopyExpr());
+ }
+
+ Code = serialization::DECL_BLOCK;
+}
+
+void ASTDeclWriter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
+ VisitDecl(D);
+ Record.push_back(D->getLanguage());
+ Writer.AddSourceLocation(D->getExternLoc(), Record);
+ Writer.AddSourceLocation(D->getRBraceLoc(), Record);
+ Code = serialization::DECL_LINKAGE_SPEC;
+}
+
+void ASTDeclWriter::VisitLabelDecl(LabelDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getLocStart(), Record);
+ Code = serialization::DECL_LABEL;
+}
+
+
+void ASTDeclWriter::VisitNamespaceDecl(NamespaceDecl *D) {
+ VisitRedeclarable(D);
+ VisitNamedDecl(D);
+ Record.push_back(D->isInline());
+ Writer.AddSourceLocation(D->getLocStart(), Record);
+ Writer.AddSourceLocation(D->getRBraceLoc(), Record);
+
+ if (D->isOriginalNamespace())
+ Writer.AddDeclRef(D->getAnonymousNamespace(), Record);
+ Code = serialization::DECL_NAMESPACE;
+
+ if (Writer.hasChain() && !D->isOriginalNamespace() &&
+ D->getOriginalNamespace()->isFromASTFile()) {
+ NamespaceDecl *NS = D->getOriginalNamespace();
+ Writer.AddUpdatedDeclContext(NS);
+
+ // Make sure all visible decls are written. They will be recorded later.
+ if (StoredDeclsMap *Map = NS->buildLookup()) {
+ for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end();
+ D != DEnd; ++D) {
+ DeclContext::lookup_result Result = D->second.getLookupResult();
+ while (Result.first != Result.second) {
+ Writer.GetDeclRef(*Result.first);
+ ++Result.first;
+ }
+ }
+ }
+ }
+
+ if (Writer.hasChain() && D->isAnonymousNamespace() &&
+ D == D->getMostRecentDecl()) {
+ // This is a most recent reopening of the anonymous namespace. If its parent
+ // is in a previous PCH (or is the TU), mark that parent for update, because
+ // the original namespace always points to the latest re-opening of its
+ // anonymous namespace.
+ Decl *Parent = cast<Decl>(
+ D->getParent()->getRedeclContext()->getPrimaryContext());
+ if (Parent->isFromASTFile() || isa<TranslationUnitDecl>(Parent)) {
+ ASTWriter::UpdateRecord &Record = Writer.DeclUpdates[Parent];
+ Record.push_back(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE);
+ Writer.AddDeclRef(D, Record);
+ }
+ }
+}
+
+void ASTDeclWriter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getNamespaceLoc(), Record);
+ Writer.AddSourceLocation(D->getTargetNameLoc(), Record);
+ Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
+ Writer.AddDeclRef(D->getNamespace(), Record);
+ Code = serialization::DECL_NAMESPACE_ALIAS;
+}
+
+void ASTDeclWriter::VisitUsingDecl(UsingDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getUsingLocation(), Record);
+ Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
+ Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
+ Writer.AddDeclRef(D->FirstUsingShadow.getPointer(), Record);
+ Record.push_back(D->isTypeName());
+ Writer.AddDeclRef(Context.getInstantiatedFromUsingDecl(D), Record);
+ Code = serialization::DECL_USING;
+}
+
+void ASTDeclWriter::VisitUsingShadowDecl(UsingShadowDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddDeclRef(D->getTargetDecl(), Record);
+ Writer.AddDeclRef(D->UsingOrNextShadow, Record);
+ Writer.AddDeclRef(Context.getInstantiatedFromUsingShadowDecl(D), Record);
+ Code = serialization::DECL_USING_SHADOW;
+}
+
+void ASTDeclWriter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getUsingLoc(), Record);
+ Writer.AddSourceLocation(D->getNamespaceKeyLocation(), Record);
+ Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
+ Writer.AddDeclRef(D->getNominatedNamespace(), Record);
+ Writer.AddDeclRef(dyn_cast<Decl>(D->getCommonAncestor()), Record);
+ Code = serialization::DECL_USING_DIRECTIVE;
+}
+
+void ASTDeclWriter::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
+ VisitValueDecl(D);
+ Writer.AddSourceLocation(D->getUsingLoc(), Record);
+ Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
+ Writer.AddDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record);
+ Code = serialization::DECL_UNRESOLVED_USING_VALUE;
+}
+
+void ASTDeclWriter::VisitUnresolvedUsingTypenameDecl(
+ UnresolvedUsingTypenameDecl *D) {
+ VisitTypeDecl(D);
+ Writer.AddSourceLocation(D->getTypenameLoc(), Record);
+ Writer.AddNestedNameSpecifierLoc(D->getQualifierLoc(), Record);
+ Code = serialization::DECL_UNRESOLVED_USING_TYPENAME;
+}
+
+void ASTDeclWriter::VisitCXXRecordDecl(CXXRecordDecl *D) {
+ VisitRecordDecl(D);
+ Record.push_back(D->isThisDeclarationADefinition());
+ if (D->isThisDeclarationADefinition())
+ Writer.AddCXXDefinitionData(D, 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);
+ }
+
+ // Store the key function to avoid deserializing every method so we can
+ // compute it.
+ if (D->IsCompleteDefinition)
+ Writer.AddDeclRef(Context.getKeyFunction(D), Record);
+
+ Code = serialization::DECL_CXX_RECORD;
+}
+
+void ASTDeclWriter::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 = serialization::DECL_CXX_METHOD;
+}
+
+void ASTDeclWriter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
+ VisitCXXMethodDecl(D);
+
+ Record.push_back(D->IsExplicitSpecified);
+ Record.push_back(D->ImplicitlyDefined);
+ Writer.AddCXXCtorInitializers(D->CtorInitializers, D->NumCtorInitializers,
+ Record);
+
+ Code = serialization::DECL_CXX_CONSTRUCTOR;
+}
+
+void ASTDeclWriter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
+ VisitCXXMethodDecl(D);
+
+ Record.push_back(D->ImplicitlyDefined);
+ Writer.AddDeclRef(D->OperatorDelete, Record);
+
+ Code = serialization::DECL_CXX_DESTRUCTOR;
+}
+
+void ASTDeclWriter::VisitCXXConversionDecl(CXXConversionDecl *D) {
+ VisitCXXMethodDecl(D);
+ Record.push_back(D->IsExplicitSpecified);
+ Code = serialization::DECL_CXX_CONVERSION;
+}
+
+void ASTDeclWriter::VisitImportDecl(ImportDecl *D) {
+ VisitDecl(D);
+ ArrayRef<SourceLocation> IdentifierLocs = D->getIdentifierLocs();
+ Record.push_back(!IdentifierLocs.empty());
+ if (IdentifierLocs.empty()) {
+ Writer.AddSourceLocation(D->getLocEnd(), Record);
+ Record.push_back(1);
+ } else {
+ for (unsigned I = 0, N = IdentifierLocs.size(); I != N; ++I)
+ Writer.AddSourceLocation(IdentifierLocs[I], Record);
+ Record.push_back(IdentifierLocs.size());
+ }
+ // Note: the number of source locations must always be the last element in
+ // the record.
+ Code = serialization::DECL_IMPORT;
+}
+
+void ASTDeclWriter::VisitAccessSpecDecl(AccessSpecDecl *D) {
+ VisitDecl(D);
+ Writer.AddSourceLocation(D->getColonLoc(), Record);
+ Code = serialization::DECL_ACCESS_SPEC;
+}
+
+void ASTDeclWriter::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->getNextFriend(), Record);
+ Record.push_back(D->UnsupportedFriend);
+ Writer.AddSourceLocation(D->FriendLoc, Record);
+ Code = serialization::DECL_FRIEND;
+}
+
+void ASTDeclWriter::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 = serialization::DECL_FRIEND_TEMPLATE;
+}
+
+void ASTDeclWriter::VisitTemplateDecl(TemplateDecl *D) {
+ VisitNamedDecl(D);
+
+ Writer.AddDeclRef(D->getTemplatedDecl(), Record);
+ Writer.AddTemplateParameterList(D->getTemplateParameters(), Record);
+}
+
+void ASTDeclWriter::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
+ VisitRedeclarable(D);
+
+ // Emit data to initialize CommonOrPrev before VisitTemplateDecl so that
+ // getCommonPtr() can be used while this is still initializing.
+ if (D->isFirstDeclaration()) {
+ // This declaration owns the 'common' pointer, so serialize that data now.
+ Writer.AddDeclRef(D->getInstantiatedFromMemberTemplate(), Record);
+ if (D->getInstantiatedFromMemberTemplate())
+ Record.push_back(D->isMemberSpecialization());
+ }
+
+ VisitTemplateDecl(D);
+ Record.push_back(D->getIdentifierNamespace());
+}
+
+void ASTDeclWriter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
+ VisitRedeclarableTemplateDecl(D);
+
+ if (D->isFirstDeclaration()) {
+ 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 = serialization::DECL_CLASS_TEMPLATE;
+}
+
+void ASTDeclWriter::VisitClassTemplateSpecializationDecl(
+ ClassTemplateSpecializationDecl *D) {
+ VisitCXXRecordDecl(D);
+
+ llvm::PointerUnion<ClassTemplateDecl *,
+ ClassTemplatePartialSpecializationDecl *> InstFrom
+ = D->getSpecializedTemplateOrPartial();
+ if (Decl *InstFromD = InstFrom.dyn_cast<ClassTemplateDecl *>()) {
+ Writer.AddDeclRef(InstFromD, 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 = serialization::DECL_CLASS_TEMPLATE_SPECIALIZATION;
+}
+
+void ASTDeclWriter::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->getPreviousDecl() == 0) {
+ Writer.AddDeclRef(D->getInstantiatedFromMember(), Record);
+ Record.push_back(D->isMemberSpecialization());
+ }
+
+ Code = serialization::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION;
+}
+
+void ASTDeclWriter::VisitClassScopeFunctionSpecializationDecl(
+ ClassScopeFunctionSpecializationDecl *D) {
+ VisitDecl(D);
+ Writer.AddDeclRef(D->getSpecialization(), Record);
+ Code = serialization::DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION;
+}
+
+
+void ASTDeclWriter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
+ VisitRedeclarableTemplateDecl(D);
+
+ if (D->isFirstDeclaration()) {
+ // 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 = serialization::DECL_FUNCTION_TEMPLATE;
+}
+
+void ASTDeclWriter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
+ VisitTypeDecl(D);
+
+ Record.push_back(D->wasDeclaredWithTypename());
+ Record.push_back(D->defaultArgumentWasInherited());
+ Writer.AddTypeSourceInfo(D->getDefaultArgumentInfo(), Record);
+
+ Code = serialization::DECL_TEMPLATE_TYPE_PARM;
+}
+
+void ASTDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
+ // For an expanded parameter pack, record the number of expansion types here
+ // so that it's easier for
+ if (D->isExpandedParameterPack())
+ Record.push_back(D->getNumExpansionTypes());
+
+ VisitDeclaratorDecl(D);
+ // TemplateParmPosition.
+ Record.push_back(D->getDepth());
+ Record.push_back(D->getPosition());
+
+ if (D->isExpandedParameterPack()) {
+ for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) {
+ Writer.AddTypeRef(D->getExpansionType(I), Record);
+ Writer.AddTypeSourceInfo(D->getExpansionTypeSourceInfo(I), Record);
+ }
+
+ Code = serialization::DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK;
+ } else {
+ // Rest of NonTypeTemplateParmDecl.
+ Record.push_back(D->isParameterPack());
+ Record.push_back(D->getDefaultArgument() != 0);
+ if (D->getDefaultArgument()) {
+ Writer.AddStmt(D->getDefaultArgument());
+ Record.push_back(D->defaultArgumentWasInherited());
+ }
+ Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM;
+ }
+}
+
+void ASTDeclWriter::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());
+ Record.push_back(D->isParameterPack());
+ Code = serialization::DECL_TEMPLATE_TEMPLATE_PARM;
+}
+
+void ASTDeclWriter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) {
+ VisitRedeclarableTemplateDecl(D);
+ Code = serialization::DECL_TYPE_ALIAS_TEMPLATE;
+}
+
+void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) {
+ VisitDecl(D);
+ Writer.AddStmt(D->getAssertExpr());
+ Writer.AddStmt(D->getMessage());
+ Writer.AddSourceLocation(D->getRParenLoc(), Record);
+ Code = serialization::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 ASTDeclWriter::VisitDeclContext(DeclContext *DC, uint64_t LexicalOffset,
+ uint64_t VisibleOffset) {
+ Record.push_back(LexicalOffset);
+ Record.push_back(VisibleOffset);
+}
+
+template <typename T>
+void ASTDeclWriter::VisitRedeclarable(Redeclarable<T> *D) {
+ T *First = D->getFirstDeclaration();
+ if (First->getMostRecentDecl() != First) {
+ // There is more than one declaration of this entity, so we will need to
+ // write a redeclaration chain.
+ Writer.AddDeclRef(First, Record);
+ Writer.Redeclarations.insert(First);
+
+ // Make sure that we serialize both the previous and the most-recent
+ // declarations, which (transitively) ensures that all declarations in the
+ // chain get serialized.
+ (void)Writer.GetDeclRef(D->getPreviousDecl());
+ (void)Writer.GetDeclRef(First->getMostRecentDecl());
+ } else {
+ // We use the sentinel value 0 to indicate an only declaration.
+ Record.push_back(0);
+ }
+
+}
+
+//===----------------------------------------------------------------------===//
+// ASTWriter Implementation
+//===----------------------------------------------------------------------===//
+
+void ASTWriter::WriteDeclsBlockAbbrevs() {
+ using namespace llvm;
+
+ BitCodeAbbrev *Abv;
+
+ // Abbreviation for DECL_FIELD
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::DECL_FIELD));
+ // Decl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
+ Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
+ Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
+ Abv->Add(BitCodeAbbrevOp(0)); // isUsed
+ Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
+ Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
+ Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
+ // 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(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
+ Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
+ // FieldDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
+ Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth
+ // Type Source Info
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
+ DeclFieldAbbrev = Stream.EmitAbbrev(Abv);
+
+ // Abbreviation for DECL_OBJC_IVAR
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::DECL_OBJC_IVAR));
+ // Decl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
+ Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
+ Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
+ Abv->Add(BitCodeAbbrevOp(0)); // isUsed
+ Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
+ Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // AccessSpecifier
+ Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
+ // 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(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
+ Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
+ // FieldDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isMutable
+ Abv->Add(BitCodeAbbrevOp(0)); //getBitWidth
+ // ObjC Ivar
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getAccessControl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getSynthesize
+ // Type Source Info
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
+ DeclObjCIvarAbbrev = Stream.EmitAbbrev(Abv);
+
+ // Abbreviation for DECL_ENUM
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::DECL_ENUM));
+ // Redeclarable
+ Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
+ // Decl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
+ Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
+ Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
+ Abv->Add(BitCodeAbbrevOp(0)); // isUsed
+ Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
+ Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
+ Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
+ Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
+ // NamedDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
+ // TypeDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
+ // TagDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
+ Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl
+ // EnumDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // AddTypeRef
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IntegerType
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getPromotionType
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumPositiveBits
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getNumNegativeBits
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScoped
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isScopedUsingClassTag
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isFixed
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // InstantiatedMembEnum
+ // DC
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
+ DeclEnumAbbrev = Stream.EmitAbbrev(Abv);
+
+ // Abbreviation for DECL_RECORD
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::DECL_RECORD));
+ // Redeclarable
+ Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
+ // Decl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
+ Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
+ Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
+ Abv->Add(BitCodeAbbrevOp(0)); // isUsed
+ Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
+ Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
+ Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
+ Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
+ // NamedDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
+ // TypeDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
+ // TagDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // IdentifierNamespace
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getTagKind
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCompleteDefinition
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // EmbeddedInDeclarator
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFreeStanding
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SourceLocation
+ Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypedefNameAnonDecl
+ // RecordDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // FlexibleArrayMember
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // AnonymousStructUnion
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // hasObjectMember
+ // DC
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalOffset
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // VisibleOffset
+ DeclRecordAbbrev = Stream.EmitAbbrev(Abv);
+
+ // Abbreviation for DECL_PARM_VAR
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::DECL_PARM_VAR));
+ // Redeclarable
+ Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
+ // Decl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
+ Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
+ Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
+ Abv->Add(BitCodeAbbrevOp(0)); // isUsed
+ Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
+ Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
+ Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
+ Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
+ // 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(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
+ Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
+ // 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)); // isExceptionVariable
+ Abv->Add(BitCodeAbbrevOp(0)); // isNRVOVariable
+ Abv->Add(BitCodeAbbrevOp(0)); // isCXXForRangeDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // isARCPseudoStrong
+ Abv->Add(BitCodeAbbrevOp(0)); // HasInit
+ Abv->Add(BitCodeAbbrevOp(0)); // HasMemberSpecializationInfo
+ // ParmVarDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsObjCMethodParameter
+ Abv->Add(BitCodeAbbrevOp(0)); // ScopeDepth
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ScopeIndex
+ Abv->Add(BitCodeAbbrevOp(0)); // ObjCDeclQualifier
+ Abv->Add(BitCodeAbbrevOp(0)); // KNRPromoted
+ Abv->Add(BitCodeAbbrevOp(0)); // HasInheritedDefaultArg
+ Abv->Add(BitCodeAbbrevOp(0)); // HasUninstantiatedDefaultArg
+ // Type Source Info
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
+ DeclParmVarAbbrev = Stream.EmitAbbrev(Abv);
+
+ // Abbreviation for DECL_TYPEDEF
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::DECL_TYPEDEF));
+ // Redeclarable
+ Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
+ // Decl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
+ Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
+ Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
+ Abv->Add(BitCodeAbbrevOp(0)); // isUsed
+ Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
+ Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
+ Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
+ Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
+ // NamedDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // NameKind = Identifier
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Name
+ // TypeDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Source Location
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type Ref
+ // TypedefDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
+ DeclTypedefAbbrev = Stream.EmitAbbrev(Abv);
+
+ // Abbreviation for DECL_VAR
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::DECL_VAR));
+ // Redeclarable
+ Abv->Add(BitCodeAbbrevOp(0)); // No redeclaration
+ // Decl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclContext
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LexicalDeclContext
+ Abv->Add(BitCodeAbbrevOp(0)); // isInvalidDecl
+ Abv->Add(BitCodeAbbrevOp(0)); // HasAttrs
+ Abv->Add(BitCodeAbbrevOp(0)); // isImplicit
+ Abv->Add(BitCodeAbbrevOp(0)); // isUsed
+ Abv->Add(BitCodeAbbrevOp(0)); // isReferenced
+ Abv->Add(BitCodeAbbrevOp(0)); // TopLevelDeclInObjCContainer
+ Abv->Add(BitCodeAbbrevOp(AS_none)); // C++ AccessSpecifier
+ Abv->Add(BitCodeAbbrevOp(0)); // ModulePrivate
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // SubmoduleID
+ // 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(BitCodeAbbrevOp::VBR, 6)); // InnerStartLoc
+ Abv->Add(BitCodeAbbrevOp(0)); // hasExtInfo
+ // VarDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClass
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // StorageClassAsWritten
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isThreadSpecified
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // CXXDirectInitializer
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isExceptionVariable
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isNRVOVariable
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isCXXForRangeDecl
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isARCPseudoStrong
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasInit
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // HasMemberSpecInfo
+ // Type Source Info
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // TypeLoc
+ DeclVarAbbrev = Stream.EmitAbbrev(Abv);
+
+ // Abbreviation for EXPR_DECL_REF
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::EXPR_DECL_REF));
+ //Stmt
+ //Expr
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
+ //DeclRefExpr
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HasQualifier
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //GetDeclFound
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ExplicitTemplateArgs
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //HadMultipleCandidates
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //RefersToEnclosingLocal
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // DeclRef
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
+ DeclRefExprAbbrev = Stream.EmitAbbrev(Abv);
+
+ // Abbreviation for EXPR_INTEGER_LITERAL
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::EXPR_INTEGER_LITERAL));
+ //Stmt
+ //Expr
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
+ //Integer Literal
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
+ Abv->Add(BitCodeAbbrevOp(32)); // Bit Width
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Value
+ IntegerLiteralAbbrev = Stream.EmitAbbrev(Abv);
+
+ // Abbreviation for EXPR_CHARACTER_LITERAL
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::EXPR_CHARACTER_LITERAL));
+ //Stmt
+ //Expr
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //TypeDependent
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //ValueDependent
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //InstantiationDependent
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //UnexpandedParamPack
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetValueKind
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); //GetObjectKind
+ //Character Literal
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // getValue
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Location
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //IsWide
+ CharacterLiteralAbbrev = Stream.EmitAbbrev(Abv);
+
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_LEXICAL));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
+ DeclContextLexicalAbbrev = Stream.EmitAbbrev(Abv);
+
+ Abv = new BitCodeAbbrev();
+ Abv->Add(BitCodeAbbrevOp(serialization::DECL_CONTEXT_VISIBLE));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
+ Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
+ DeclContextVisibleLookupAbbrev = 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 AST 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.
+static bool isRequiredDecl(const Decl *D, ASTContext &Context) {
+ // An ObjCMethodDecl is never considered as "required" because its
+ // implementation container always is.
+
+ // File scoped assembly or obj-c implementation must be seen.
+ if (isa<FileScopeAsmDecl>(D) || isa<ObjCImplDecl>(D))
+ return true;
+
+ return Context.DeclMustBeEmitted(D);
+}
+
+void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) {
+ // Switch case IDs are per Decl.
+ ClearSwitchCaseIDs();
+
+ RecordData Record;
+ ASTDeclWriter W(*this, Context, Record);
+
+ // Determine the ID for this declaration.
+ serialization::DeclID ID;
+ if (D->isFromASTFile())
+ ID = getDeclID(D);
+ else {
+ serialization::DeclID &IDR = DeclIDs[D];
+ if (IDR == 0)
+ IDR = NextDeclID++;
+
+ ID= IDR;
+ }
+
+ bool isReplacingADecl = ID < FirstDeclID;
+
+ // 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) {
+ if (isReplacingADecl) {
+ // It is replacing a decl from a chained PCH; make sure that the
+ // DeclContext is fully loaded.
+ if (DC->hasExternalLexicalStorage())
+ DC->LoadLexicalDeclsFromExternalStorage();
+ if (DC->hasExternalVisibleStorage())
+ Chain->completeVisibleDeclsMap(DC);
+ }
+ LexicalOffset = WriteDeclContextLexicalBlock(Context, DC);
+ VisibleOffset = WriteDeclContextVisibleBlock(Context, DC);
+ }
+
+ if (isReplacingADecl) {
+ // We're replacing a decl in a previous file.
+ ReplacedDecls.push_back(ReplacedDeclInfo(ID, Stream.GetCurrentBitNo(),
+ D->getLocation()));
+ } else {
+ unsigned Index = ID - FirstDeclID;
+
+ // Record the offset for this declaration
+ SourceLocation Loc = D->getLocation();
+ if (DeclOffsets.size() == Index)
+ DeclOffsets.push_back(DeclOffset(Loc, Stream.GetCurrentBitNo()));
+ else if (DeclOffsets.size() < Index) {
+ DeclOffsets.resize(Index+1);
+ DeclOffsets[Index].setLocation(Loc);
+ DeclOffsets[Index].BitOffset = Stream.GetCurrentBitNo();
+ }
+
+ SourceManager &SM = Context.getSourceManager();
+ if (Loc.isValid() && SM.isLocalSourceLocation(Loc))
+ associateDeclWithFile(D, ID);
+ }
+
+ // Build and emit a record for this declaration
+ Record.clear();
+ W.Code = (serialization::DeclCode)0;
+ W.AbbrevToUse = 0;
+ W.Visit(D);
+ if (DC) W.VisitDeclContext(DC, LexicalOffset, VisibleOffset);
+
+ if (!W.Code)
+ llvm::report_fatal_error(StringRef("unexpected declaration kind '") +
+ D->getDeclKindName() + "'");
+ Stream.EmitRecord(W.Code, Record, W.AbbrevToUse);
+
+ // Flush any expressions that were written as part of this declaration.
+ FlushStmts();
+
+ // Flush C++ base specifiers, if there are any.
+ FlushCXXBaseSpecifiers();
+
+ // Note "external" declarations so that we can add them to a record in the
+ // AST file later.
+ //
+ // FIXME: This should be renamed, the predicate is much more complicated.
+ if (isRequiredDecl(D, Context))
+ ExternalDefinitions.push_back(ID);
+}