Revert Sebastian's build-breaking patch.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111265 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReaderDecl.cpp b/lib/Frontend/PCHReaderDecl.cpp
new file mode 100644
index 0000000..aa5ce7a
--- /dev/null
+++ b/lib/Frontend/PCHReaderDecl.cpp
@@ -0,0 +1,1600 @@
+//===--- PCHReaderDecl.cpp - Decl Deserialization ---------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the PCHReader::ReadDeclRecord method, which is the
+// entrypoint for loading a decl.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Frontend/PCHReader.h"
+#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/DeclVisitor.h"
+#include "clang/AST/DeclGroup.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclTemplate.h"
+#include "clang/AST/Expr.h"
+using namespace clang;
+
+
+//===----------------------------------------------------------------------===//
+// Declaration deserialization
+//===----------------------------------------------------------------------===//
+
+namespace clang {
+ class PCHDeclReader : public DeclVisitor<PCHDeclReader, void> {
+ PCHReader &Reader;
+ llvm::BitstreamCursor &Cursor;
+ const pch::DeclID ThisDeclID;
+ const PCHReader::RecordData &Record;
+ unsigned &Idx;
+ pch::TypeID TypeIDForTypeDecl;
+
+ uint64_t GetCurrentCursorOffset();
+
+ public:
+ PCHDeclReader(PCHReader &Reader, llvm::BitstreamCursor &Cursor,
+ pch::DeclID thisDeclID, const PCHReader::RecordData &Record,
+ unsigned &Idx)
+ : Reader(Reader), Cursor(Cursor), ThisDeclID(thisDeclID), Record(Record),
+ Idx(Idx), TypeIDForTypeDecl(0) { }
+
+ void Visit(Decl *D);
+
+ void VisitDecl(Decl *D);
+ void VisitTranslationUnitDecl(TranslationUnitDecl *TU);
+ void VisitNamedDecl(NamedDecl *ND);
+ void VisitNamespaceDecl(NamespaceDecl *D);
+ void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
+ void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
+ void VisitTypeDecl(TypeDecl *TD);
+ void VisitTypedefDecl(TypedefDecl *TD);
+ void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D);
+ void VisitTagDecl(TagDecl *TD);
+ void VisitEnumDecl(EnumDecl *ED);
+ void VisitRecordDecl(RecordDecl *RD);
+ void VisitCXXRecordDecl(CXXRecordDecl *D);
+ void VisitClassTemplateSpecializationDecl(
+ ClassTemplateSpecializationDecl *D);
+ void VisitClassTemplatePartialSpecializationDecl(
+ ClassTemplatePartialSpecializationDecl *D);
+ void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
+ void VisitValueDecl(ValueDecl *VD);
+ void VisitEnumConstantDecl(EnumConstantDecl *ECD);
+ void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
+ void VisitDeclaratorDecl(DeclaratorDecl *DD);
+ void VisitFunctionDecl(FunctionDecl *FD);
+ void VisitCXXMethodDecl(CXXMethodDecl *D);
+ void VisitCXXConstructorDecl(CXXConstructorDecl *D);
+ void VisitCXXDestructorDecl(CXXDestructorDecl *D);
+ void VisitCXXConversionDecl(CXXConversionDecl *D);
+ void VisitFieldDecl(FieldDecl *FD);
+ void VisitVarDecl(VarDecl *VD);
+ void VisitImplicitParamDecl(ImplicitParamDecl *PD);
+ void VisitParmVarDecl(ParmVarDecl *PD);
+ 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 *AD);
+ void VisitAccessSpecDecl(AccessSpecDecl *D);
+ void VisitFriendDecl(FriendDecl *D);
+ void VisitFriendTemplateDecl(FriendTemplateDecl *D);
+ void VisitStaticAssertDecl(StaticAssertDecl *D);
+ void VisitBlockDecl(BlockDecl *BD);
+
+ std::pair<uint64_t, uint64_t> VisitDeclContext(DeclContext *DC);
+ template <typename T> void VisitRedeclarable(Redeclarable<T> *D);
+
+ // FIXME: Reorder according to DeclNodes.td?
+ void VisitObjCMethodDecl(ObjCMethodDecl *D);
+ void VisitObjCContainerDecl(ObjCContainerDecl *D);
+ void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
+ void VisitObjCIvarDecl(ObjCIvarDecl *D);
+ void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
+ void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
+ void 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);
+ };
+}
+
+uint64_t PCHDeclReader::GetCurrentCursorOffset() {
+ uint64_t Off = 0;
+ for (unsigned I = 0, N = Reader.Chain.size(); I != N; ++I) {
+ PCHReader::PerFileData &F = *Reader.Chain[N - I - 1];
+ if (&Cursor == &F.DeclsCursor) {
+ Off += F.DeclsCursor.GetCurrentBitNo();
+ break;
+ }
+ Off += F.SizeInBits;
+ }
+ return Off;
+}
+
+void PCHDeclReader::Visit(Decl *D) {
+ DeclVisitor<PCHDeclReader, void>::Visit(D);
+
+ if (TypeDecl *TD = dyn_cast<TypeDecl>(D)) {
+ // if we have a fully initialized TypeDecl, we can safely read its type now.
+ TD->setTypeForDecl(Reader.GetType(TypeIDForTypeDecl).getTypePtr());
+ } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
+ // FunctionDecl's body was written last after all other Stmts/Exprs.
+ if (Record[Idx++])
+ FD->setLazyBody(GetCurrentCursorOffset());
+ }
+}
+
+void PCHDeclReader::VisitDecl(Decl *D) {
+ D->setDeclContext(cast_or_null<DeclContext>(Reader.GetDecl(Record[Idx++])));
+ D->setLexicalDeclContext(
+ cast_or_null<DeclContext>(Reader.GetDecl(Record[Idx++])));
+ D->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ D->setInvalidDecl(Record[Idx++]);
+ if (Record[Idx++])
+ D->initAttrs(Reader.ReadAttributes(Cursor));
+ D->setImplicit(Record[Idx++]);
+ D->setUsed(Record[Idx++]);
+ D->setAccess((AccessSpecifier)Record[Idx++]);
+ D->setPCHLevel(Record[Idx++] + 1);
+}
+
+void PCHDeclReader::VisitTranslationUnitDecl(TranslationUnitDecl *TU) {
+ VisitDecl(TU);
+ TU->setAnonymousNamespace(
+ cast_or_null<NamespaceDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitNamedDecl(NamedDecl *ND) {
+ VisitDecl(ND);
+ ND->setDeclName(Reader.ReadDeclarationName(Record, Idx));
+}
+
+void PCHDeclReader::VisitTypeDecl(TypeDecl *TD) {
+ VisitNamedDecl(TD);
+ // Delay type reading until after we have fully initialized the decl.
+ TypeIDForTypeDecl = Record[Idx++];
+}
+
+void PCHDeclReader::VisitTypedefDecl(TypedefDecl *TD) {
+ VisitTypeDecl(TD);
+ TD->setTypeSourceInfo(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
+}
+
+void PCHDeclReader::VisitTagDecl(TagDecl *TD) {
+ VisitTypeDecl(TD);
+ TD->IdentifierNamespace = Record[Idx++];
+ VisitRedeclarable(TD);
+ TD->setTagKind((TagDecl::TagKind)Record[Idx++]);
+ TD->setDefinition(Record[Idx++]);
+ TD->setEmbeddedInDeclarator(Record[Idx++]);
+ TD->setRBraceLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ TD->setTagKeywordLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ // FIXME: maybe read optional qualifier and its range.
+ TD->setTypedefForAnonDecl(
+ cast_or_null<TypedefDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitEnumDecl(EnumDecl *ED) {
+ VisitTagDecl(ED);
+ ED->setIntegerType(Reader.GetType(Record[Idx++]));
+ ED->setPromotionType(Reader.GetType(Record[Idx++]));
+ ED->setNumPositiveBits(Record[Idx++]);
+ ED->setNumNegativeBits(Record[Idx++]);
+ ED->setInstantiationOfMemberEnum(
+ cast_or_null<EnumDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitRecordDecl(RecordDecl *RD) {
+ VisitTagDecl(RD);
+ RD->setHasFlexibleArrayMember(Record[Idx++]);
+ RD->setAnonymousStructOrUnion(Record[Idx++]);
+ RD->setHasObjectMember(Record[Idx++]);
+}
+
+void PCHDeclReader::VisitValueDecl(ValueDecl *VD) {
+ VisitNamedDecl(VD);
+ VD->setType(Reader.GetType(Record[Idx++]));
+}
+
+void PCHDeclReader::VisitEnumConstantDecl(EnumConstantDecl *ECD) {
+ VisitValueDecl(ECD);
+ if (Record[Idx++])
+ ECD->setInitExpr(Reader.ReadExpr(Cursor));
+ ECD->setInitVal(Reader.ReadAPSInt(Record, Idx));
+}
+
+void PCHDeclReader::VisitDeclaratorDecl(DeclaratorDecl *DD) {
+ VisitValueDecl(DD);
+ TypeSourceInfo *TInfo = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
+ if (TInfo)
+ DD->setTypeSourceInfo(TInfo);
+ // FIXME: read optional qualifier and its range.
+}
+
+void PCHDeclReader::VisitFunctionDecl(FunctionDecl *FD) {
+ VisitDeclaratorDecl(FD);
+ // FIXME: read DeclarationNameLoc.
+
+ FD->IdentifierNamespace = Record[Idx++];
+ switch ((FunctionDecl::TemplatedKind)Record[Idx++]) {
+ default: assert(false && "Unhandled TemplatedKind!");
+ break;
+ case FunctionDecl::TK_NonTemplate:
+ break;
+ case FunctionDecl::TK_FunctionTemplate:
+ FD->setDescribedFunctionTemplate(
+ cast<FunctionTemplateDecl>(Reader.GetDecl(Record[Idx++])));
+ break;
+ case FunctionDecl::TK_MemberSpecialization: {
+ FunctionDecl *InstFD = cast<FunctionDecl>(Reader.GetDecl(Record[Idx++]));
+ TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
+ SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
+ FD->setInstantiationOfMemberFunction(InstFD, TSK);
+ FD->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
+ break;
+ }
+ case FunctionDecl::TK_FunctionTemplateSpecialization: {
+ FunctionTemplateDecl *Template
+ = cast<FunctionTemplateDecl>(Reader.GetDecl(Record[Idx++]));
+ TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
+
+ // Template arguments.
+ llvm::SmallVector<TemplateArgument, 8> TemplArgs;
+ Reader.ReadTemplateArgumentList(TemplArgs, Cursor, Record, Idx);
+
+ // Template args as written.
+ llvm::SmallVector<TemplateArgumentLoc, 8> TemplArgLocs;
+ SourceLocation LAngleLoc, RAngleLoc;
+ if (Record[Idx++]) { // TemplateArgumentsAsWritten != 0
+ unsigned NumTemplateArgLocs = Record[Idx++];
+ TemplArgLocs.reserve(NumTemplateArgLocs);
+ for (unsigned i=0; i != NumTemplateArgLocs; ++i)
+ TemplArgLocs.push_back(
+ Reader.ReadTemplateArgumentLoc(Cursor, Record, Idx));
+
+ LAngleLoc = Reader.ReadSourceLocation(Record, Idx);
+ RAngleLoc = Reader.ReadSourceLocation(Record, Idx);
+ }
+
+ SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
+
+ if (FD->isCanonicalDecl()) // if canonical add to template's set.
+ FD->setFunctionTemplateSpecialization(Template, TemplArgs.size(),
+ TemplArgs.data(), TSK,
+ TemplArgLocs.size(),
+ TemplArgLocs.data(),
+ LAngleLoc, RAngleLoc, POI);
+ break;
+ }
+ case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
+ // Templates.
+ UnresolvedSet<8> TemplDecls;
+ unsigned NumTemplates = Record[Idx++];
+ while (NumTemplates--)
+ TemplDecls.addDecl(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
+
+ // Templates args.
+ TemplateArgumentListInfo TemplArgs;
+ unsigned NumArgs = Record[Idx++];
+ while (NumArgs--)
+ TemplArgs.addArgument(Reader.ReadTemplateArgumentLoc(Cursor,Record, Idx));
+ TemplArgs.setLAngleLoc(Reader.ReadSourceLocation(Record, Idx));
+ TemplArgs.setRAngleLoc(Reader.ReadSourceLocation(Record, Idx));
+
+ FD->setDependentTemplateSpecialization(*Reader.getContext(),
+ TemplDecls, TemplArgs);
+ break;
+ }
+ }
+
+ // FunctionDecl's body is handled last at PCHReaderDecl::Visit,
+ // after everything else is read.
+
+ VisitRedeclarable(FD);
+ FD->setStorageClass((FunctionDecl::StorageClass)Record[Idx++]);
+ FD->setStorageClassAsWritten((FunctionDecl::StorageClass)Record[Idx++]);
+ FD->setInlineSpecified(Record[Idx++]);
+ FD->setVirtualAsWritten(Record[Idx++]);
+ FD->setPure(Record[Idx++]);
+ FD->setHasInheritedPrototype(Record[Idx++]);
+ FD->setHasWrittenPrototype(Record[Idx++]);
+ FD->setDeleted(Record[Idx++]);
+ FD->setTrivial(Record[Idx++]);
+ FD->setCopyAssignment(Record[Idx++]);
+ FD->setHasImplicitReturnZero(Record[Idx++]);
+ FD->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
+
+ // Read in the parameters.
+ unsigned NumParams = Record[Idx++];
+ llvm::SmallVector<ParmVarDecl *, 16> Params;
+ Params.reserve(NumParams);
+ for (unsigned I = 0; I != NumParams; ++I)
+ Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
+ FD->setParams(Params.data(), NumParams);
+}
+
+void PCHDeclReader::VisitObjCMethodDecl(ObjCMethodDecl *MD) {
+ VisitNamedDecl(MD);
+ if (Record[Idx++]) {
+ // In practice, this won't be executed (since method definitions
+ // don't occur in header files).
+ MD->setBody(Reader.ReadStmt(Cursor));
+ MD->setSelfDecl(cast<ImplicitParamDecl>(Reader.GetDecl(Record[Idx++])));
+ MD->setCmdDecl(cast<ImplicitParamDecl>(Reader.GetDecl(Record[Idx++])));
+ }
+ MD->setInstanceMethod(Record[Idx++]);
+ MD->setVariadic(Record[Idx++]);
+ MD->setSynthesized(Record[Idx++]);
+ MD->setDefined(Record[Idx++]);
+ MD->setDeclImplementation((ObjCMethodDecl::ImplementationControl)Record[Idx++]);
+ MD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
+ MD->setNumSelectorArgs(unsigned(Record[Idx++]));
+ MD->setResultType(Reader.GetType(Record[Idx++]));
+ MD->setResultTypeSourceInfo(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
+ MD->setEndLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ unsigned NumParams = Record[Idx++];
+ llvm::SmallVector<ParmVarDecl *, 16> Params;
+ Params.reserve(NumParams);
+ for (unsigned I = 0; I != NumParams; ++I)
+ Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
+ MD->setMethodParams(*Reader.getContext(), Params.data(), NumParams,
+ NumParams);
+}
+
+void PCHDeclReader::VisitObjCContainerDecl(ObjCContainerDecl *CD) {
+ VisitNamedDecl(CD);
+ SourceLocation A = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ SourceLocation B = SourceLocation::getFromRawEncoding(Record[Idx++]);
+ CD->setAtEndRange(SourceRange(A, B));
+}
+
+void PCHDeclReader::VisitObjCInterfaceDecl(ObjCInterfaceDecl *ID) {
+ VisitObjCContainerDecl(ID);
+ ID->setTypeForDecl(Reader.GetType(Record[Idx++]).getTypePtr());
+ ID->setSuperClass(cast_or_null<ObjCInterfaceDecl>
+ (Reader.GetDecl(Record[Idx++])));
+ unsigned NumProtocols = Record[Idx++];
+ llvm::SmallVector<ObjCProtocolDecl *, 16> Protocols;
+ Protocols.reserve(NumProtocols);
+ for (unsigned I = 0; I != NumProtocols; ++I)
+ Protocols.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::SmallVector<SourceLocation, 16> ProtoLocs;
+ ProtoLocs.reserve(NumProtocols);
+ for (unsigned I = 0; I != NumProtocols; ++I)
+ ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ ID->setProtocolList(Protocols.data(), NumProtocols, ProtoLocs.data(),
+ *Reader.getContext());
+ unsigned NumIvars = Record[Idx++];
+ llvm::SmallVector<ObjCIvarDecl *, 16> IVars;
+ IVars.reserve(NumIvars);
+ for (unsigned I = 0; I != NumIvars; ++I)
+ IVars.push_back(cast<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
+ ID->setCategoryList(
+ cast_or_null<ObjCCategoryDecl>(Reader.GetDecl(Record[Idx++])));
+ ID->setForwardDecl(Record[Idx++]);
+ ID->setImplicitInterfaceDecl(Record[Idx++]);
+ ID->setClassLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ ID->setSuperClassLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ ID->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHDeclReader::VisitObjCIvarDecl(ObjCIvarDecl *IVD) {
+ VisitFieldDecl(IVD);
+ IVD->setAccessControl((ObjCIvarDecl::AccessControl)Record[Idx++]);
+ bool synth = Record[Idx++];
+ IVD->setSynthesize(synth);
+}
+
+void PCHDeclReader::VisitObjCProtocolDecl(ObjCProtocolDecl *PD) {
+ VisitObjCContainerDecl(PD);
+ PD->setForwardDecl(Record[Idx++]);
+ PD->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ unsigned NumProtoRefs = Record[Idx++];
+ llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
+ ProtoRefs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::SmallVector<SourceLocation, 16> ProtoLocs;
+ ProtoLocs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ PD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
+ *Reader.getContext());
+}
+
+void PCHDeclReader::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *FD) {
+ VisitFieldDecl(FD);
+}
+
+void PCHDeclReader::VisitObjCClassDecl(ObjCClassDecl *CD) {
+ VisitDecl(CD);
+ unsigned NumClassRefs = Record[Idx++];
+ llvm::SmallVector<ObjCInterfaceDecl *, 16> ClassRefs;
+ ClassRefs.reserve(NumClassRefs);
+ for (unsigned I = 0; I != NumClassRefs; ++I)
+ ClassRefs.push_back(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::SmallVector<SourceLocation, 16> SLocs;
+ SLocs.reserve(NumClassRefs);
+ for (unsigned I = 0; I != NumClassRefs; ++I)
+ SLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ CD->setClassList(*Reader.getContext(), ClassRefs.data(), SLocs.data(),
+ NumClassRefs);
+}
+
+void PCHDeclReader::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *FPD) {
+ VisitDecl(FPD);
+ unsigned NumProtoRefs = Record[Idx++];
+ llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
+ ProtoRefs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::SmallVector<SourceLocation, 16> ProtoLocs;
+ ProtoLocs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ FPD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
+ *Reader.getContext());
+}
+
+void PCHDeclReader::VisitObjCCategoryDecl(ObjCCategoryDecl *CD) {
+ VisitObjCContainerDecl(CD);
+ CD->setClassInterface(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+ unsigned NumProtoRefs = Record[Idx++];
+ llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
+ ProtoRefs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::SmallVector<SourceLocation, 16> ProtoLocs;
+ ProtoLocs.reserve(NumProtoRefs);
+ for (unsigned I = 0; I != NumProtoRefs; ++I)
+ ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ CD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
+ *Reader.getContext());
+ CD->setNextClassCategory(cast_or_null<ObjCCategoryDecl>(Reader.GetDecl(Record[Idx++])));
+ CD->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ CD->setCategoryNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+}
+
+void PCHDeclReader::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *CAD) {
+ VisitNamedDecl(CAD);
+ CAD->setClassInterface(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
+ VisitNamedDecl(D);
+ D->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ D->setType(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
+ // FIXME: stable encoding
+ D->setPropertyAttributes(
+ (ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]);
+ D->setPropertyAttributesAsWritten(
+ (ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]);
+ // FIXME: stable encoding
+ D->setPropertyImplementation(
+ (ObjCPropertyDecl::PropertyControl)Record[Idx++]);
+ D->setGetterName(Reader.ReadDeclarationName(Record, Idx).getObjCSelector());
+ D->setSetterName(Reader.ReadDeclarationName(Record, Idx).getObjCSelector());
+ D->setGetterMethodDecl(
+ cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setSetterMethodDecl(
+ cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setPropertyIvarDecl(
+ cast_or_null<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitObjCImplDecl(ObjCImplDecl *D) {
+ VisitObjCContainerDecl(D);
+ D->setClassInterface(
+ cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
+ VisitObjCImplDecl(D);
+ D->setIdentifier(Reader.GetIdentifierInfo(Record, Idx));
+}
+
+void PCHDeclReader::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
+ VisitObjCImplDecl(D);
+ D->setSuperClass(
+ cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
+ llvm::tie(D->IvarInitializers, D->NumIvarInitializers)
+ = Reader.ReadCXXBaseOrMemberInitializers(Cursor, Record, Idx);
+}
+
+
+void PCHDeclReader::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
+ VisitDecl(D);
+ D->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ D->setPropertyDecl(
+ cast_or_null<ObjCPropertyDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setPropertyIvarDecl(
+ cast_or_null<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setGetterCXXConstructor(Reader.ReadExpr(Cursor));
+ D->setSetterCXXAssignment(Reader.ReadExpr(Cursor));
+}
+
+void PCHDeclReader::VisitFieldDecl(FieldDecl *FD) {
+ VisitDeclaratorDecl(FD);
+ FD->setMutable(Record[Idx++]);
+ if (Record[Idx++])
+ FD->setBitWidth(Reader.ReadExpr(Cursor));
+ if (!FD->getDeclName()) {
+ FieldDecl *Tmpl = cast_or_null<FieldDecl>(Reader.GetDecl(Record[Idx++]));
+ if (Tmpl)
+ Reader.getContext()->setInstantiatedFromUnnamedFieldDecl(FD, Tmpl);
+ }
+}
+
+void PCHDeclReader::VisitVarDecl(VarDecl *VD) {
+ VisitDeclaratorDecl(VD);
+ VD->setStorageClass((VarDecl::StorageClass)Record[Idx++]);
+ VD->setStorageClassAsWritten((VarDecl::StorageClass)Record[Idx++]);
+ VD->setThreadSpecified(Record[Idx++]);
+ VD->setCXXDirectInitializer(Record[Idx++]);
+ VD->setExceptionVariable(Record[Idx++]);
+ VD->setNRVOVariable(Record[Idx++]);
+ VisitRedeclarable(VD);
+ if (Record[Idx++])
+ VD->setInit(Reader.ReadExpr(Cursor));
+
+ if (Record[Idx++]) { // HasMemberSpecializationInfo.
+ VarDecl *Tmpl = cast<VarDecl>(Reader.GetDecl(Record[Idx++]));
+ TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
+ SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
+ Reader.getContext()->setInstantiatedFromStaticDataMember(VD, Tmpl, TSK,POI);
+ }
+}
+
+void PCHDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) {
+ VisitVarDecl(PD);
+}
+
+void PCHDeclReader::VisitParmVarDecl(ParmVarDecl *PD) {
+ VisitVarDecl(PD);
+ PD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
+ PD->setHasInheritedDefaultArg(Record[Idx++]);
+ if (Record[Idx++]) // hasUninstantiatedDefaultArg.
+ PD->setUninstantiatedDefaultArg(Reader.ReadExpr(Cursor));
+}
+
+void PCHDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) {
+ VisitDecl(AD);
+ AD->setAsmString(cast<StringLiteral>(Reader.ReadExpr(Cursor)));
+}
+
+void PCHDeclReader::VisitBlockDecl(BlockDecl *BD) {
+ VisitDecl(BD);
+ BD->setBody(cast_or_null<CompoundStmt>(Reader.ReadStmt(Cursor)));
+ BD->setSignatureAsWritten(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
+ unsigned NumParams = Record[Idx++];
+ llvm::SmallVector<ParmVarDecl *, 16> Params;
+ Params.reserve(NumParams);
+ for (unsigned I = 0; I != NumParams; ++I)
+ Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
+ BD->setParams(Params.data(), NumParams);
+}
+
+void PCHDeclReader::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
+ VisitDecl(D);
+ D->setLanguage((LinkageSpecDecl::LanguageIDs)Record[Idx++]);
+ D->setHasBraces(Record[Idx++]);
+}
+
+void PCHDeclReader::VisitNamespaceDecl(NamespaceDecl *D) {
+ VisitNamedDecl(D);
+ D->setLBracLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setRBracLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setNextNamespace(
+ cast_or_null<NamespaceDecl>(Reader.GetDecl(Record[Idx++])));
+
+ bool IsOriginal = Record[Idx++];
+ D->OrigOrAnonNamespace.setInt(IsOriginal);
+ D->OrigOrAnonNamespace.setPointer(
+ cast_or_null<NamespaceDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
+ VisitNamedDecl(D);
+
+ D->setAliasLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+ D->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+ D->setTargetNameLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setAliasedNamespace(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitUsingDecl(UsingDecl *D) {
+ VisitNamedDecl(D);
+ D->setUsingLocation(Reader.ReadSourceLocation(Record, Idx));
+ D->setNestedNameRange(Reader.ReadSourceRange(Record, Idx));
+ D->setTargetNestedNameDecl(Reader.ReadNestedNameSpecifier(Record, Idx));
+ // FIXME: read the DNLoc component.
+
+ // FIXME: It would probably be more efficient to read these into a vector
+ // and then re-cosntruct the shadow decl set over that vector since it
+ // would avoid existence checks.
+ unsigned NumShadows = Record[Idx++];
+ for(unsigned I = 0; I != NumShadows; ++I) {
+ // Avoid invariant checking of UsingDecl::addShadowDecl, the decl may still
+ // be initializing.
+ D->Shadows.insert(cast<UsingShadowDecl>(Reader.GetDecl(Record[Idx++])));
+ }
+ D->setTypeName(Record[Idx++]);
+ NamedDecl *Pattern = cast_or_null<NamedDecl>(Reader.GetDecl(Record[Idx++]));
+ if (Pattern)
+ Reader.getContext()->setInstantiatedFromUsingDecl(D, Pattern);
+}
+
+void PCHDeclReader::VisitUsingShadowDecl(UsingShadowDecl *D) {
+ VisitNamedDecl(D);
+ D->setTargetDecl(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setUsingDecl(cast<UsingDecl>(Reader.GetDecl(Record[Idx++])));
+ UsingShadowDecl *Pattern
+ = cast_or_null<UsingShadowDecl>(Reader.GetDecl(Record[Idx++]));
+ if (Pattern)
+ Reader.getContext()->setInstantiatedFromUsingShadowDecl(D, Pattern);
+}
+
+void PCHDeclReader::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
+ VisitNamedDecl(D);
+ D->setNamespaceKeyLocation(Reader.ReadSourceLocation(Record, Idx));
+ D->setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+ D->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+ D->setIdentLocation(Reader.ReadSourceLocation(Record, Idx));
+ D->setNominatedNamespace(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
+ D->setCommonAncestor(cast_or_null<DeclContext>(
+ Reader.GetDecl(Record[Idx++])));
+}
+
+void PCHDeclReader::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
+ VisitValueDecl(D);
+ D->setTargetNestedNameRange(Reader.ReadSourceRange(Record, Idx));
+ D->setUsingLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setTargetNestedNameSpecifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+ // FIXME: read the DNLoc component.
+}
+
+void PCHDeclReader::VisitUnresolvedUsingTypenameDecl(
+ UnresolvedUsingTypenameDecl *D) {
+ VisitTypeDecl(D);
+ D->setTargetNestedNameRange(Reader.ReadSourceRange(Record, Idx));
+ D->setUsingLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setTypenameLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setTargetNestedNameSpecifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+}
+
+void PCHDeclReader::VisitCXXRecordDecl(CXXRecordDecl *D) {
+ ASTContext &C = *Reader.getContext();
+
+ // We need to allocate the DefinitionData struct ahead of VisitRecordDecl
+ // so that the other CXXRecordDecls can get a pointer even when the owner
+ // is still initializing.
+ bool OwnsDefinitionData = false;
+ enum DataOwnership { Data_NoDefData, Data_Owner, Data_NotOwner };
+ switch ((DataOwnership)Record[Idx++]) {
+ default:
+ assert(0 && "Out of sync with PCHDeclWriter or messed up reading");
+ case Data_NoDefData:
+ break;
+ case Data_Owner:
+ OwnsDefinitionData = true;
+ D->DefinitionData = new (C) struct CXXRecordDecl::DefinitionData(D);
+ break;
+ case Data_NotOwner:
+ D->DefinitionData
+ = cast<CXXRecordDecl>(Reader.GetDecl(Record[Idx++]))->DefinitionData;
+ break;
+ }
+
+ VisitRecordDecl(D);
+
+ if (OwnsDefinitionData) {
+ assert(D->DefinitionData);
+ struct CXXRecordDecl::DefinitionData &Data = *D->DefinitionData;
+
+ Data.UserDeclaredConstructor = Record[Idx++];
+ Data.UserDeclaredCopyConstructor = Record[Idx++];
+ Data.UserDeclaredCopyAssignment = Record[Idx++];
+ Data.UserDeclaredDestructor = Record[Idx++];
+ Data.Aggregate = Record[Idx++];
+ Data.PlainOldData = Record[Idx++];
+ Data.Empty = Record[Idx++];
+ Data.Polymorphic = Record[Idx++];
+ Data.Abstract = Record[Idx++];
+ Data.HasTrivialConstructor = Record[Idx++];
+ Data.HasTrivialCopyConstructor = Record[Idx++];
+ Data.HasTrivialCopyAssignment = Record[Idx++];
+ Data.HasTrivialDestructor = Record[Idx++];
+ Data.ComputedVisibleConversions = Record[Idx++];
+ Data.DeclaredDefaultConstructor = Record[Idx++];
+ Data.DeclaredCopyConstructor = Record[Idx++];
+ Data.DeclaredCopyAssignment = Record[Idx++];
+ Data.DeclaredDestructor = Record[Idx++];
+
+ // setBases() is unsuitable since it may try to iterate the bases of an
+ // uninitialized base.
+ Data.NumBases = Record[Idx++];
+ Data.Bases = new(C) CXXBaseSpecifier [Data.NumBases];
+ for (unsigned i = 0; i != Data.NumBases; ++i)
+ Data.Bases[i] = Reader.ReadCXXBaseSpecifier(Cursor, Record, Idx);
+
+ // FIXME: Make VBases lazily computed when needed to avoid storing them.
+ Data.NumVBases = Record[Idx++];
+ Data.VBases = new(C) CXXBaseSpecifier [Data.NumVBases];
+ for (unsigned i = 0; i != Data.NumVBases; ++i)
+ Data.VBases[i] = Reader.ReadCXXBaseSpecifier(Cursor, Record, Idx);
+
+ Reader.ReadUnresolvedSet(Data.Conversions, Record, Idx);
+ Reader.ReadUnresolvedSet(Data.VisibleConversions, Record, Idx);
+ assert(Data.Definition && "Data.Definition should be already set!");
+ Data.FirstFriend
+ = cast_or_null<FriendDecl>(Reader.GetDecl(Record[Idx++]));
+ }
+
+ enum CXXRecKind {
+ CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
+ };
+ switch ((CXXRecKind)Record[Idx++]) {
+ default:
+ assert(false && "Out of sync with PCHDeclWriter::VisitCXXRecordDecl?");
+ case CXXRecNotTemplate:
+ break;
+ case CXXRecTemplate:
+ D->setDescribedClassTemplate(
+ cast<ClassTemplateDecl>(Reader.GetDecl(Record[Idx++])));
+ break;
+ case CXXRecMemberSpecialization: {
+ CXXRecordDecl *RD = cast<CXXRecordDecl>(Reader.GetDecl(Record[Idx++]));
+ TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
+ SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
+ D->setInstantiationOfMemberClass(RD, TSK);
+ D->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
+ break;
+ }
+ }
+}
+
+void PCHDeclReader::VisitCXXMethodDecl(CXXMethodDecl *D) {
+ VisitFunctionDecl(D);
+ unsigned NumOverridenMethods = Record[Idx++];
+ while (NumOverridenMethods--) {
+ CXXMethodDecl *MD = cast<CXXMethodDecl>(Reader.GetDecl(Record[Idx++]));
+ // Avoid invariant checking of CXXMethodDecl::addOverriddenMethod,
+ // MD may be initializing.
+ Reader.getContext()->addOverriddenMethod(D, MD);
+ }
+}
+
+void PCHDeclReader::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
+ VisitCXXMethodDecl(D);
+
+ D->IsExplicitSpecified = Record[Idx++];
+ D->ImplicitlyDefined = Record[Idx++];
+ llvm::tie(D->BaseOrMemberInitializers, D->NumBaseOrMemberInitializers)
+ = Reader.ReadCXXBaseOrMemberInitializers(Cursor, Record, Idx);
+}
+
+void PCHDeclReader::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
+ VisitCXXMethodDecl(D);
+
+ D->ImplicitlyDefined = Record[Idx++];
+ D->OperatorDelete = cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++]));
+}
+
+void PCHDeclReader::VisitCXXConversionDecl(CXXConversionDecl *D) {
+ VisitCXXMethodDecl(D);
+ D->IsExplicitSpecified = Record[Idx++];
+}
+
+void PCHDeclReader::VisitAccessSpecDecl(AccessSpecDecl *D) {
+ VisitDecl(D);
+ D->setColonLoc(Reader.ReadSourceLocation(Record, Idx));
+}
+
+void PCHDeclReader::VisitFriendDecl(FriendDecl *D) {
+ VisitDecl(D);
+ if (Record[Idx++])
+ D->Friend = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
+ else
+ D->Friend = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
+ D->NextFriend = cast_or_null<FriendDecl>(Reader.GetDecl(Record[Idx++]));
+ D->FriendLoc = Reader.ReadSourceLocation(Record, Idx);
+}
+
+void PCHDeclReader::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
+ VisitDecl(D);
+ unsigned NumParams = Record[Idx++];
+ D->NumParams = NumParams;
+ D->Params = new TemplateParameterList*[NumParams];
+ for (unsigned i = 0; i != NumParams; ++i)
+ D->Params[i] = Reader.ReadTemplateParameterList(Record, Idx);
+ if (Record[Idx++]) // HasFriendDecl
+ D->Friend = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
+ else
+ D->Friend = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
+ D->FriendLoc = Reader.ReadSourceLocation(Record, Idx);
+}
+
+void PCHDeclReader::VisitTemplateDecl(TemplateDecl *D) {
+ VisitNamedDecl(D);
+
+ NamedDecl *TemplatedDecl
+ = cast_or_null<NamedDecl>(Reader.GetDecl(Record[Idx++]));
+ TemplateParameterList* TemplateParams
+ = Reader.ReadTemplateParameterList(Record, Idx);
+ D->init(TemplatedDecl, TemplateParams);
+}
+
+void PCHDeclReader::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
+ VisitTemplateDecl(D);
+
+ D->IdentifierNamespace = Record[Idx++];
+ RedeclarableTemplateDecl *PrevDecl =
+ cast_or_null<RedeclarableTemplateDecl>(Reader.GetDecl(Record[Idx++]));
+ assert((PrevDecl == 0 || PrevDecl->getKind() == D->getKind()) &&
+ "PrevDecl kind mismatch");
+ if (PrevDecl)
+ D->CommonOrPrev = PrevDecl;
+ if (PrevDecl == 0) {
+ if (RedeclarableTemplateDecl *RTD
+ = cast_or_null<RedeclarableTemplateDecl>(Reader.GetDecl(Record[Idx++]))) {
+ assert(RTD->getKind() == D->getKind() &&
+ "InstantiatedFromMemberTemplate kind mismatch");
+ D->setInstantiatedFromMemberTemplateImpl(RTD);
+ if (Record[Idx++])
+ D->setMemberSpecialization();
+ }
+
+ RedeclarableTemplateDecl *LatestDecl =
+ cast_or_null<RedeclarableTemplateDecl>(Reader.GetDecl(Record[Idx++]));
+
+ // This decl is a first one and the latest declaration that it points to is
+ // in the same PCH. However, if this actually needs to point to a
+ // redeclaration in another chained PCH, we need to update it by checking
+ // the FirstLatestDeclIDs map which tracks this kind of decls.
+ assert(Reader.GetDecl(ThisDeclID) == D && "Invalid ThisDeclID ?");
+ PCHReader::FirstLatestDeclIDMap::iterator I
+ = Reader.FirstLatestDeclIDs.find(ThisDeclID);
+ if (I != Reader.FirstLatestDeclIDs.end()) {
+ Decl *NewLatest = Reader.GetDecl(I->second);
+ assert((LatestDecl->getLocation().isInvalid() ||
+ NewLatest->getLocation().isInvalid() ||
+ Reader.SourceMgr.isBeforeInTranslationUnit(
+ LatestDecl->getLocation(),
+ NewLatest->getLocation())) &&
+ "The new latest is supposed to come after the previous latest");
+ LatestDecl = cast<RedeclarableTemplateDecl>(NewLatest);
+ }
+
+ assert(LatestDecl->getKind() == D->getKind() && "Latest kind mismatch");
+ D->getCommonPtr()->Latest = LatestDecl;
+ }
+}
+
+void PCHDeclReader::VisitClassTemplateDecl(ClassTemplateDecl *D) {
+ VisitRedeclarableTemplateDecl(D);
+
+ if (D->getPreviousDeclaration() == 0) {
+ // This ClassTemplateDecl owns a CommonPtr; read it.
+
+ // FoldingSets are filled in VisitClassTemplateSpecializationDecl.
+ unsigned size = Record[Idx++];
+ while (size--)
+ cast<ClassTemplateSpecializationDecl>(Reader.GetDecl(Record[Idx++]));
+
+ size = Record[Idx++];
+ while (size--)
+ cast<ClassTemplatePartialSpecializationDecl>(
+ Reader.GetDecl(Record[Idx++]));
+
+ // InjectedClassNameType is computed.
+ }
+}
+
+void PCHDeclReader::VisitClassTemplateSpecializationDecl(
+ ClassTemplateSpecializationDecl *D) {
+ VisitCXXRecordDecl(D);
+
+ if (Decl *InstD = Reader.GetDecl(Record[Idx++])) {
+ if (ClassTemplateDecl *CTD = dyn_cast<ClassTemplateDecl>(InstD)) {
+ D->setInstantiationOf(CTD);
+ } else {
+ llvm::SmallVector<TemplateArgument, 8> TemplArgs;
+ Reader.ReadTemplateArgumentList(TemplArgs, Cursor, Record, Idx);
+ D->setInstantiationOf(cast<ClassTemplatePartialSpecializationDecl>(InstD),
+ TemplArgs.data(), TemplArgs.size());
+ }
+ }
+
+ // Explicit info.
+ if (TypeSourceInfo *TyInfo = Reader.GetTypeSourceInfo(Cursor, Record, Idx)) {
+ D->setTypeAsWritten(TyInfo);
+ D->setExternLoc(Reader.ReadSourceLocation(Record, Idx));
+ D->setTemplateKeywordLoc(Reader.ReadSourceLocation(Record, Idx));
+ }
+
+ llvm::SmallVector<TemplateArgument, 8> TemplArgs;
+ Reader.ReadTemplateArgumentList(TemplArgs, Cursor, Record, Idx);
+ D->initTemplateArgs(TemplArgs.data(), TemplArgs.size());
+ SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
+ if (POI.isValid())
+ D->setPointOfInstantiation(POI);
+ D->setSpecializationKind((TemplateSpecializationKind)Record[Idx++]);
+
+ if (D->isCanonicalDecl()) { // It's kept in the folding set.
+ ClassTemplateDecl *CanonPattern
+ = cast<ClassTemplateDecl>(Reader.GetDecl(Record[Idx++]));
+ if (ClassTemplatePartialSpecializationDecl *Partial
+ = dyn_cast<ClassTemplatePartialSpecializationDecl>(D)) {
+ CanonPattern->getPartialSpecializations().InsertNode(Partial);
+ } else {
+ CanonPattern->getSpecializations().InsertNode(D);
+ }
+ }
+}
+
+void PCHDeclReader::VisitClassTemplatePartialSpecializationDecl(
+ ClassTemplatePartialSpecializationDecl *D) {
+ VisitClassTemplateSpecializationDecl(D);
+
+ D->initTemplateParameters(Reader.ReadTemplateParameterList(Record, Idx));
+
+ TemplateArgumentListInfo ArgInfos;
+ unsigned NumArgs = Record[Idx++];
+ while (NumArgs--)
+ ArgInfos.addArgument(Reader.ReadTemplateArgumentLoc(Cursor, Record, Idx));
+ D->initTemplateArgsAsWritten(ArgInfos);
+
+ D->setSequenceNumber(Record[Idx++]);
+
+ // These are read/set from/to the first declaration.
+ if (D->getPreviousDeclaration() == 0) {
+ D->setInstantiatedFromMember(
+ cast_or_null<ClassTemplatePartialSpecializationDecl>(
+ Reader.GetDecl(Record[Idx++])));
+ if (Record[Idx++])
+ D->setMemberSpecialization();
+ }
+}
+
+void PCHDeclReader::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
+ VisitRedeclarableTemplateDecl(D);
+
+ if (D->getPreviousDeclaration() == 0) {
+ // This FunctionTemplateDecl owns a CommonPtr; read it.
+
+ // Read the function specialization declarations.
+ // FunctionTemplateDecl's FunctionTemplateSpecializationInfos are filled
+ // through the specialized FunctionDecl's setFunctionTemplateSpecialization.
+ unsigned NumSpecs = Record[Idx++];
+ while (NumSpecs--)
+ Reader.GetDecl(Record[Idx++]);
+ }
+}
+
+void PCHDeclReader::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
+ VisitTypeDecl(D);
+
+ D->setDeclaredWithTypename(Record[Idx++]);
+ D->setParameterPack(Record[Idx++]);
+
+ bool Inherited = Record[Idx++];
+ TypeSourceInfo *DefArg = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
+ D->setDefaultArgument(DefArg, Inherited);
+}
+
+void PCHDeclReader::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
+ VisitVarDecl(D);
+ // TemplateParmPosition.
+ D->setDepth(Record[Idx++]);
+ D->setPosition(Record[Idx++]);
+ // Rest of NonTypeTemplateParmDecl.
+ if (Record[Idx++]) {
+ Expr *DefArg = Reader.ReadExpr(Cursor);
+ bool Inherited = Record[Idx++];
+ D->setDefaultArgument(DefArg, Inherited);
+ }
+}
+
+void PCHDeclReader::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
+ VisitTemplateDecl(D);
+ // TemplateParmPosition.
+ D->setDepth(Record[Idx++]);
+ D->setPosition(Record[Idx++]);
+ // Rest of TemplateTemplateParmDecl.
+ TemplateArgumentLoc Arg = Reader.ReadTemplateArgumentLoc(Cursor, Record, Idx);
+ bool IsInherited = Record[Idx++];
+ D->setDefaultArgument(Arg, IsInherited);
+}
+
+void PCHDeclReader::VisitStaticAssertDecl(StaticAssertDecl *D) {
+ VisitDecl(D);
+ D->AssertExpr = Reader.ReadExpr(Cursor);
+ D->Message = cast<StringLiteral>(Reader.ReadExpr(Cursor));
+}
+
+std::pair<uint64_t, uint64_t>
+PCHDeclReader::VisitDeclContext(DeclContext *DC) {
+ uint64_t LexicalOffset = Record[Idx++];
+ uint64_t VisibleOffset = Record[Idx++];
+ return std::make_pair(LexicalOffset, VisibleOffset);
+}
+
+template <typename T>
+void PCHDeclReader::VisitRedeclarable(Redeclarable<T> *D) {
+ enum RedeclKind { NoRedeclaration = 0, PointsToPrevious, PointsToLatest };
+ RedeclKind Kind = (RedeclKind)Record[Idx++];
+ switch (Kind) {
+ default:
+ assert(0 && "Out of sync with PCHDeclWriter::VisitRedeclarable or messed up"
+ " reading");
+ case NoRedeclaration:
+ break;
+ case PointsToPrevious:
+ D->RedeclLink = typename Redeclarable<T>::PreviousDeclLink(
+ cast_or_null<T>(Reader.GetDecl(Record[Idx++])));
+ break;
+ case PointsToLatest:
+ D->RedeclLink = typename Redeclarable<T>::LatestDeclLink(
+ cast_or_null<T>(Reader.GetDecl(Record[Idx++])));
+ break;
+ }
+
+ assert(!(Kind == PointsToPrevious &&
+ Reader.FirstLatestDeclIDs.find(ThisDeclID) !=
+ Reader.FirstLatestDeclIDs.end()) &&
+ "This decl is not first, it should not be in the map");
+ if (Kind == PointsToPrevious)
+ return;
+
+ // This decl is a first one and the latest declaration that it points to is in
+ // the same PCH. However, if this actually needs to point to a redeclaration
+ // in another chained PCH, we need to update it by checking the
+ // FirstLatestDeclIDs map which tracks this kind of decls.
+ assert(Reader.GetDecl(ThisDeclID) == static_cast<T*>(D) &&
+ "Invalid ThisDeclID ?");
+ PCHReader::FirstLatestDeclIDMap::iterator I
+ = Reader.FirstLatestDeclIDs.find(ThisDeclID);
+ if (I != Reader.FirstLatestDeclIDs.end()) {
+ Decl *NewLatest = Reader.GetDecl(I->second);
+ assert((D->getMostRecentDeclaration()->getLocation().isInvalid() ||
+ NewLatest->getLocation().isInvalid() ||
+ Reader.SourceMgr.isBeforeInTranslationUnit(
+ D->getMostRecentDeclaration()->getLocation(),
+ NewLatest->getLocation())) &&
+ "The new latest is supposed to come after the previous latest");
+ D->RedeclLink
+ = typename Redeclarable<T>::LatestDeclLink(cast_or_null<T>(NewLatest));
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// Attribute Reading
+//===----------------------------------------------------------------------===//
+
+/// \brief Reads attributes from the current stream position.
+Attr *PCHReader::ReadAttributes(llvm::BitstreamCursor &DeclsCursor) {
+ unsigned Code = DeclsCursor.ReadCode();
+ assert(Code == llvm::bitc::UNABBREV_RECORD &&
+ "Expected unabbreviated record"); (void)Code;
+
+ RecordData Record;
+ unsigned Idx = 0;
+ unsigned RecCode = DeclsCursor.ReadRecord(Code, Record);
+ assert(RecCode == pch::DECL_ATTR && "Expected attribute record");
+ (void)RecCode;
+
+#define SIMPLE_ATTR(Name) \
+ case attr::Name: \
+ New = ::new (*Context) Name##Attr(); \
+ break
+
+#define STRING_ATTR(Name) \
+ case attr::Name: \
+ New = ::new (*Context) Name##Attr(*Context, ReadString(Record, Idx)); \
+ break
+
+#define UNSIGNED_ATTR(Name) \
+ case attr::Name: \
+ New = ::new (*Context) Name##Attr(Record[Idx++]); \
+ break
+
+ Attr *Attrs = 0;
+ while (Idx < Record.size()) {
+ Attr *New = 0;
+ attr::Kind Kind = (attr::Kind)Record[Idx++];
+ bool IsInherited = Record[Idx++];
+
+ switch (Kind) {
+ default:
+ assert(0 && "Unknown attribute!");
+ break;
+ STRING_ATTR(Alias);
+ SIMPLE_ATTR(AlignMac68k);
+ UNSIGNED_ATTR(Aligned);
+ SIMPLE_ATTR(AlwaysInline);
+ SIMPLE_ATTR(AnalyzerNoReturn);
+ STRING_ATTR(Annotate);
+ STRING_ATTR(AsmLabel);
+ SIMPLE_ATTR(BaseCheck);
+
+ case attr::Blocks:
+ New = ::new (*Context) BlocksAttr(
+ (BlocksAttr::BlocksAttrTypes)Record[Idx++]);
+ break;
+
+ SIMPLE_ATTR(CDecl);
+
+ case attr::Cleanup:
+ New = ::new (*Context) CleanupAttr(
+ cast<FunctionDecl>(GetDecl(Record[Idx++])));
+ break;
+
+ SIMPLE_ATTR(Const);
+ UNSIGNED_ATTR(Constructor);
+ SIMPLE_ATTR(DLLExport);
+ SIMPLE_ATTR(DLLImport);
+ SIMPLE_ATTR(Deprecated);
+ UNSIGNED_ATTR(Destructor);
+ SIMPLE_ATTR(FastCall);
+ SIMPLE_ATTR(Final);
+
+ case attr::Format: {
+ std::string Type = ReadString(Record, Idx);
+ unsigned FormatIdx = Record[Idx++];
+ unsigned FirstArg = Record[Idx++];
+ New = ::new (*Context) FormatAttr(*Context, Type, FormatIdx, FirstArg);
+ break;
+ }
+
+ case attr::FormatArg: {
+ unsigned FormatIdx = Record[Idx++];
+ New = ::new (*Context) FormatArgAttr(FormatIdx);
+ break;
+ }
+
+ case attr::Sentinel: {
+ int sentinel = Record[Idx++];
+ int nullPos = Record[Idx++];
+ New = ::new (*Context) SentinelAttr(sentinel, nullPos);
+ break;
+ }
+
+ SIMPLE_ATTR(GNUInline);
+ SIMPLE_ATTR(Hiding);
+
+ case attr::IBAction:
+ New = ::new (*Context) IBActionAttr();
+ break;
+
+ case attr::IBOutlet:
+ New = ::new (*Context) IBOutletAttr();
+ break;
+
+ case attr::IBOutletCollection: {
+ ObjCInterfaceDecl *D =
+ cast_or_null<ObjCInterfaceDecl>(GetDecl(Record[Idx++]));
+ New = ::new (*Context) IBOutletCollectionAttr(D);
+ break;
+ }
+
+ SIMPLE_ATTR(Malloc);
+ SIMPLE_ATTR(NoDebug);
+ SIMPLE_ATTR(NoInline);
+ SIMPLE_ATTR(NoReturn);
+ SIMPLE_ATTR(NoThrow);
+
+ case attr::NonNull: {
+ unsigned Size = Record[Idx++];
+ llvm::SmallVector<unsigned, 16> ArgNums;
+ ArgNums.insert(ArgNums.end(), &Record[Idx], &Record[Idx] + Size);
+ Idx += Size;
+ New = ::new (*Context) NonNullAttr(*Context, ArgNums.data(), Size);
+ break;
+ }
+
+ case attr::ReqdWorkGroupSize: {
+ unsigned X = Record[Idx++];
+ unsigned Y = Record[Idx++];
+ unsigned Z = Record[Idx++];
+ New = ::new (*Context) ReqdWorkGroupSizeAttr(X, Y, Z);
+ break;
+ }
+
+ SIMPLE_ATTR(ObjCException);
+ SIMPLE_ATTR(ObjCNSObject);
+ SIMPLE_ATTR(CFReturnsNotRetained);
+ SIMPLE_ATTR(CFReturnsRetained);
+ SIMPLE_ATTR(NSReturnsNotRetained);
+ SIMPLE_ATTR(NSReturnsRetained);
+ SIMPLE_ATTR(Overloadable);
+ SIMPLE_ATTR(Override);
+ SIMPLE_ATTR(Packed);
+ UNSIGNED_ATTR(MaxFieldAlignment);
+ SIMPLE_ATTR(Pure);
+ UNSIGNED_ATTR(Regparm);
+ STRING_ATTR(Section);
+ SIMPLE_ATTR(StdCall);
+ SIMPLE_ATTR(ThisCall);
+ SIMPLE_ATTR(TransparentUnion);
+ SIMPLE_ATTR(Unavailable);
+ SIMPLE_ATTR(Unused);
+ SIMPLE_ATTR(Used);
+
+ case attr::Visibility:
+ New = ::new (*Context) VisibilityAttr(
+ (VisibilityAttr::VisibilityTypes)Record[Idx++],
+ (bool)Record[Idx++]);
+ break;
+
+ SIMPLE_ATTR(WarnUnusedResult);
+ SIMPLE_ATTR(Weak);
+ SIMPLE_ATTR(WeakRef);
+ SIMPLE_ATTR(WeakImport);
+ }
+
+ assert(New && "Unable to decode attribute?");
+ New->setInherited(IsInherited);
+ New->setNext(Attrs);
+ Attrs = New;
+ }
+#undef UNSIGNED_ATTR
+#undef STRING_ATTR
+#undef SIMPLE_ATTR
+
+ // The list of attributes was built backwards. Reverse the list
+ // before returning it.
+ Attr *PrevAttr = 0, *NextAttr = 0;
+ while (Attrs) {
+ NextAttr = Attrs->getNext();
+ Attrs->setNext(PrevAttr);
+ PrevAttr = Attrs;
+ Attrs = NextAttr;
+ }
+
+ return PrevAttr;
+}
+
+//===----------------------------------------------------------------------===//
+// PCHReader Implementation
+//===----------------------------------------------------------------------===//
+
+/// \brief Note that we have loaded the declaration with the given
+/// Index.
+///
+/// This routine notes that this declaration has already been loaded,
+/// so that future GetDecl calls will return this declaration rather
+/// than trying to load a new declaration.
+inline void PCHReader::LoadedDecl(unsigned Index, Decl *D) {
+ assert(!DeclsLoaded[Index] && "Decl loaded twice?");
+ DeclsLoaded[Index] = D;
+}
+
+
+/// \brief Determine whether the consumer will be interested in seeing
+/// this declaration (via HandleTopLevelDecl).
+///
+/// This routine should return true for anything that might affect
+/// code generation, e.g., inline function definitions, Objective-C
+/// declarations with metadata, etc.
+static bool isConsumerInterestedIn(Decl *D) {
+ if (isa<FileScopeAsmDecl>(D))
+ return true;
+ if (VarDecl *Var = dyn_cast<VarDecl>(D))
+ return Var->isFileVarDecl() &&
+ Var->isThisDeclarationADefinition() == VarDecl::Definition;
+ if (FunctionDecl *Func = dyn_cast<FunctionDecl>(D))
+ return Func->isThisDeclarationADefinition();
+ return isa<ObjCProtocolDecl>(D) || isa<ObjCImplementationDecl>(D);
+}
+
+/// \brief Get the correct cursor and offset for loading a type.
+PCHReader::RecordLocation
+PCHReader::DeclCursorForIndex(unsigned Index, pch::DeclID ID) {
+ // See if there's an override.
+ DeclReplacementMap::iterator It = ReplacedDecls.find(ID);
+ if (It != ReplacedDecls.end())
+ return RecordLocation(&It->second.first->DeclsCursor, It->second.second);
+
+ PerFileData *F = 0;
+ for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
+ F = Chain[N - I - 1];
+ if (Index < F->LocalNumDecls)
+ break;
+ Index -= F->LocalNumDecls;
+ }
+ assert(F && F->LocalNumDecls > Index && "Broken chain");
+ return RecordLocation(&F->DeclsCursor, F->DeclOffsets[Index]);
+}
+
+/// \brief Read the declaration at the given offset from the PCH file.
+Decl *PCHReader::ReadDeclRecord(unsigned Index, pch::DeclID ID) {
+ RecordLocation Loc = DeclCursorForIndex(Index, ID);
+ llvm::BitstreamCursor &DeclsCursor = *Loc.first;
+ // Keep track of where we are in the stream, then jump back there
+ // after reading this declaration.
+ SavedStreamPosition SavedPosition(DeclsCursor);
+
+ ReadingKindTracker ReadingKind(Read_Decl, *this);
+
+ // Note that we are loading a declaration record.
+ Deserializing ADecl(this);
+
+ DeclsCursor.JumpToBit(Loc.second);
+ RecordData Record;
+ unsigned Code = DeclsCursor.ReadCode();
+ unsigned Idx = 0;
+ PCHDeclReader Reader(*this, DeclsCursor, ID, Record, Idx);
+
+ Decl *D = 0;
+ switch ((pch::DeclCode)DeclsCursor.ReadRecord(Code, Record)) {
+ case pch::DECL_ATTR:
+ case pch::DECL_CONTEXT_LEXICAL:
+ case pch::DECL_CONTEXT_VISIBLE:
+ assert(false && "Record cannot be de-serialized with ReadDeclRecord");
+ break;
+ case pch::DECL_TRANSLATION_UNIT:
+ assert(Index == 0 && "Translation unit must be at index 0");
+ D = Context->getTranslationUnitDecl();
+ break;
+ case pch::DECL_TYPEDEF:
+ D = TypedefDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_ENUM:
+ D = EnumDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_RECORD:
+ D = RecordDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_ENUM_CONSTANT:
+ D = EnumConstantDecl::Create(*Context, 0, SourceLocation(), 0, QualType(),
+ 0, llvm::APSInt());
+ break;
+ case pch::DECL_FUNCTION:
+ D = FunctionDecl::Create(*Context, 0, SourceLocation(), DeclarationName(),
+ QualType(), 0);
+ break;
+ case pch::DECL_LINKAGE_SPEC:
+ D = LinkageSpecDecl::Create(*Context, 0, SourceLocation(),
+ (LinkageSpecDecl::LanguageIDs)0,
+ false);
+ break;
+ case pch::DECL_NAMESPACE:
+ D = NamespaceDecl::Create(*Context, 0, SourceLocation(), 0);
+ break;
+ case pch::DECL_NAMESPACE_ALIAS:
+ D = NamespaceAliasDecl::Create(*Context, 0, SourceLocation(),
+ SourceLocation(), 0, SourceRange(), 0,
+ SourceLocation(), 0);
+ break;
+ case pch::DECL_USING:
+ D = UsingDecl::Create(*Context, 0, SourceRange(), SourceLocation(),
+ 0, DeclarationNameInfo(), false);
+ break;
+ case pch::DECL_USING_SHADOW:
+ D = UsingShadowDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_USING_DIRECTIVE:
+ D = UsingDirectiveDecl::Create(*Context, 0, SourceLocation(),
+ SourceLocation(), SourceRange(), 0,
+ SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_UNRESOLVED_USING_VALUE:
+ D = UnresolvedUsingValueDecl::Create(*Context, 0, SourceLocation(),
+ SourceRange(), 0,
+ DeclarationNameInfo());
+ break;
+ case pch::DECL_UNRESOLVED_USING_TYPENAME:
+ D = UnresolvedUsingTypenameDecl::Create(*Context, 0, SourceLocation(),
+ SourceLocation(), SourceRange(),
+ 0, SourceLocation(),
+ DeclarationName());
+ break;
+ case pch::DECL_CXX_RECORD:
+ D = CXXRecordDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_CXX_METHOD:
+ D = CXXMethodDecl::Create(*Context, 0, DeclarationNameInfo(),
+ QualType(), 0);
+ break;
+ case pch::DECL_CXX_CONSTRUCTOR:
+ D = CXXConstructorDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_CXX_DESTRUCTOR:
+ D = CXXDestructorDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_CXX_CONVERSION:
+ D = CXXConversionDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_ACCESS_SPEC:
+ D = AccessSpecDecl::Create(*Context, AS_none, 0, SourceLocation(),
+ SourceLocation());
+ break;
+ case pch::DECL_FRIEND:
+ D = FriendDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_FRIEND_TEMPLATE:
+ D = FriendTemplateDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_CLASS_TEMPLATE:
+ D = ClassTemplateDecl::Create(*Context, 0, SourceLocation(),
+ DeclarationName(), 0, 0, 0);
+ break;
+ case pch::DECL_CLASS_TEMPLATE_SPECIALIZATION:
+ D = ClassTemplateSpecializationDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION:
+ D = ClassTemplatePartialSpecializationDecl::Create(*Context,
+ Decl::EmptyShell());
+ break;
+ case pch::DECL_FUNCTION_TEMPLATE:
+ D = FunctionTemplateDecl::Create(*Context, 0, SourceLocation(),
+ DeclarationName(), 0, 0);
+ break;
+ case pch::DECL_TEMPLATE_TYPE_PARM:
+ D = TemplateTypeParmDecl::Create(*Context, Decl::EmptyShell());
+ break;
+ case pch::DECL_NON_TYPE_TEMPLATE_PARM:
+ D = NonTypeTemplateParmDecl::Create(*Context, 0, SourceLocation(), 0,0,0,
+ QualType(),0);
+ break;
+ case pch::DECL_TEMPLATE_TEMPLATE_PARM:
+ D = TemplateTemplateParmDecl::Create(*Context, 0, SourceLocation(),0,0,0,0);
+ break;
+ case pch::DECL_STATIC_ASSERT:
+ D = StaticAssertDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+
+ case pch::DECL_OBJC_METHOD:
+ D = ObjCMethodDecl::Create(*Context, SourceLocation(), SourceLocation(),
+ Selector(), QualType(), 0, 0);
+ break;
+ case pch::DECL_OBJC_INTERFACE:
+ D = ObjCInterfaceDecl::Create(*Context, 0, SourceLocation(), 0);
+ break;
+ case pch::DECL_OBJC_IVAR:
+ D = ObjCIvarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0,
+ ObjCIvarDecl::None);
+ break;
+ case pch::DECL_OBJC_PROTOCOL:
+ D = ObjCProtocolDecl::Create(*Context, 0, SourceLocation(), 0);
+ break;
+ case pch::DECL_OBJC_AT_DEFS_FIELD:
+ D = ObjCAtDefsFieldDecl::Create(*Context, 0, SourceLocation(), 0,
+ QualType(), 0);
+ break;
+ case pch::DECL_OBJC_CLASS:
+ D = ObjCClassDecl::Create(*Context, 0, SourceLocation());
+ break;
+ case pch::DECL_OBJC_FORWARD_PROTOCOL:
+ D = ObjCForwardProtocolDecl::Create(*Context, 0, SourceLocation());
+ break;
+ case pch::DECL_OBJC_CATEGORY:
+ D = ObjCCategoryDecl::Create(*Context, 0, SourceLocation(),
+ SourceLocation(), SourceLocation(), 0);
+ break;
+ case pch::DECL_OBJC_CATEGORY_IMPL:
+ D = ObjCCategoryImplDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_OBJC_IMPLEMENTATION:
+ D = ObjCImplementationDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_OBJC_COMPATIBLE_ALIAS:
+ D = ObjCCompatibleAliasDecl::Create(*Context, 0, SourceLocation(), 0, 0);
+ break;
+ case pch::DECL_OBJC_PROPERTY:
+ D = ObjCPropertyDecl::Create(*Context, 0, SourceLocation(), 0, SourceLocation(),
+ 0);
+ break;
+ case pch::DECL_OBJC_PROPERTY_IMPL:
+ D = ObjCPropertyImplDecl::Create(*Context, 0, SourceLocation(),
+ SourceLocation(), 0,
+ ObjCPropertyImplDecl::Dynamic, 0);
+ break;
+ case pch::DECL_FIELD:
+ D = FieldDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0, 0,
+ false);
+ break;
+ case pch::DECL_VAR:
+ D = VarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0,
+ VarDecl::None, VarDecl::None);
+ break;
+
+ case pch::DECL_IMPLICIT_PARAM:
+ D = ImplicitParamDecl::Create(*Context, 0, SourceLocation(), 0, QualType());
+ break;
+
+ case pch::DECL_PARM_VAR:
+ D = ParmVarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0,
+ VarDecl::None, VarDecl::None, 0);
+ break;
+ case pch::DECL_FILE_SCOPE_ASM:
+ D = FileScopeAsmDecl::Create(*Context, 0, SourceLocation(), 0);
+ break;
+ case pch::DECL_BLOCK:
+ D = BlockDecl::Create(*Context, 0, SourceLocation());
+ break;
+ }
+
+ assert(D && "Unknown declaration reading PCH file");
+ LoadedDecl(Index, D);
+ Reader.Visit(D);
+
+ // If this declaration is also a declaration context, get the
+ // offsets for its tables of lexical and visible declarations.
+ if (DeclContext *DC = dyn_cast<DeclContext>(D)) {
+ std::pair<uint64_t, uint64_t> Offsets = Reader.VisitDeclContext(DC);
+ if (Offsets.first || Offsets.second) {
+ DC->setHasExternalLexicalStorage(Offsets.first != 0);
+ DC->setHasExternalVisibleStorage(Offsets.second != 0);
+ DeclContextInfo Info;
+ if (ReadDeclContextStorage(DeclsCursor, Offsets, Info))
+ return 0;
+ DeclContextInfos &Infos = DeclContextOffsets[DC];
+ // Reading the TU will happen after reading its update blocks, so we need
+ // to make sure we insert in front. For all other contexts, the vector
+ // is empty here anyway, so there's no loss in efficiency.
+ Infos.insert(Infos.begin(), Info);
+ }
+ }
+ assert(Idx == Record.size());
+
+ // If we have deserialized a declaration that has a definition the
+ // AST consumer might need to know about, queue it.
+ // We don't pass it to the consumer immediately because we may be in recursive
+ // loading, and some declarations may still be initializing.
+ if (isConsumerInterestedIn(D))
+ InterestingDecls.push_back(D);
+
+ return D;
+}
+
+bool PCHReader::ReadDeclContextStorage(llvm::BitstreamCursor &Cursor,
+ const std::pair<uint64_t, uint64_t> &Offsets,
+ DeclContextInfo &Info) {
+ SavedStreamPosition SavedPosition(Cursor);
+ // First the lexical decls.
+ if (Offsets.first != 0) {
+ Cursor.JumpToBit(Offsets.first);
+
+ RecordData Record;
+ const char *Blob;
+ unsigned BlobLen;
+ unsigned Code = Cursor.ReadCode();
+ unsigned RecCode = Cursor.ReadRecord(Code, Record, &Blob, &BlobLen);
+ if (RecCode != pch::DECL_CONTEXT_LEXICAL) {
+ Error("Expected lexical block");
+ return true;
+ }
+
+ Info.LexicalDecls = reinterpret_cast<const pch::DeclID*>(Blob);
+ Info.NumLexicalDecls = BlobLen / sizeof(pch::DeclID);
+ } else {
+ Info.LexicalDecls = 0;
+ Info.NumLexicalDecls = 0;
+ }
+
+ // Now the visible decls.
+ Info.Stream = &Cursor;
+ Info.OffsetToVisibleDecls = Offsets.second;
+
+ return false;
+}