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llvm-project/clang/lib/Serialization/ASTReaderDecl.cpp
Richard Smith b2f61b4a05 Remove SequenceNumber from class/variable template partial specializations. 
This was only used to ensure that the traversal order was the same as the
insertion order, but that guarantee was already being provided by the use
of a FoldingSetVector.

llvm-svn: 189075
2013-08-22 23:27:37 +00:00

2831 lines
106 KiB
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//===--- ASTReaderDecl.cpp - Decl Deserialization ---------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the ASTReader::ReadDeclRecord method, which is the
// entrypoint for loading a decl.
//
//===----------------------------------------------------------------------===//
#include "clang/Serialization/ASTReader.h"
#include "ASTCommon.h"
#include "ASTReaderInternals.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclGroup.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/DeclVisitor.h"
#include "clang/AST/Expr.h"
#include "clang/Sema/IdentifierResolver.h"
#include "clang/Sema/Sema.h"
#include "clang/Sema/SemaDiagnostic.h"
#include "llvm/Support/SaveAndRestore.h"
using namespace clang;
using namespace clang::serialization;
//===----------------------------------------------------------------------===//
// Declaration deserialization
//===----------------------------------------------------------------------===//
namespace clang {
class ASTDeclReader : public DeclVisitor<ASTDeclReader, void> {
ASTReader &Reader;
ModuleFile &F;
const DeclID ThisDeclID;
const unsigned RawLocation;
typedef ASTReader::RecordData RecordData;
const RecordData &Record;
unsigned &Idx;
TypeID TypeIDForTypeDecl;
bool HasPendingBody;
uint64_t GetCurrentCursorOffset();
SourceLocation ReadSourceLocation(const RecordData &R, unsigned &I) {
return Reader.ReadSourceLocation(F, R, I);
}
SourceRange ReadSourceRange(const RecordData &R, unsigned &I) {
return Reader.ReadSourceRange(F, R, I);
}
TypeSourceInfo *GetTypeSourceInfo(const RecordData &R, unsigned &I) {
return Reader.GetTypeSourceInfo(F, R, I);
}
serialization::DeclID ReadDeclID(const RecordData &R, unsigned &I) {
return Reader.ReadDeclID(F, R, I);
}
Decl *ReadDecl(const RecordData &R, unsigned &I) {
return Reader.ReadDecl(F, R, I);
}
template<typename T>
T *ReadDeclAs(const RecordData &R, unsigned &I) {
return Reader.ReadDeclAs<T>(F, R, I);
}
void ReadQualifierInfo(QualifierInfo &Info,
const RecordData &R, unsigned &I) {
Reader.ReadQualifierInfo(F, Info, R, I);
}
void ReadDeclarationNameLoc(DeclarationNameLoc &DNLoc, DeclarationName Name,
const RecordData &R, unsigned &I) {
Reader.ReadDeclarationNameLoc(F, DNLoc, Name, R, I);
}
void ReadDeclarationNameInfo(DeclarationNameInfo &NameInfo,
const RecordData &R, unsigned &I) {
Reader.ReadDeclarationNameInfo(F, NameInfo, R, I);
}
serialization::SubmoduleID readSubmoduleID(const RecordData &R,
unsigned &I) {
if (I >= R.size())
return 0;
return Reader.getGlobalSubmoduleID(F, R[I++]);
}
Module *readModule(const RecordData &R, unsigned &I) {
return Reader.getSubmodule(readSubmoduleID(R, I));
}
void ReadCXXDefinitionData(struct CXXRecordDecl::DefinitionData &Data,
const RecordData &R, unsigned &I);
/// \brief RAII class used to capture the first ID within a redeclaration
/// chain and to introduce it into the list of pending redeclaration chains
/// on destruction.
///
/// The caller can choose not to introduce this ID into the redeclaration
/// chain by calling \c suppress().
class RedeclarableResult {
ASTReader &Reader;
GlobalDeclID FirstID;
mutable bool Owning;
Decl::Kind DeclKind;
void operator=(RedeclarableResult &) LLVM_DELETED_FUNCTION;
public:
RedeclarableResult(ASTReader &Reader, GlobalDeclID FirstID,
Decl::Kind DeclKind)
: Reader(Reader), FirstID(FirstID), Owning(true), DeclKind(DeclKind) { }
RedeclarableResult(const RedeclarableResult &Other)
: Reader(Other.Reader), FirstID(Other.FirstID), Owning(Other.Owning) ,
DeclKind(Other.DeclKind)
{
Other.Owning = false;
}
~RedeclarableResult() {
if (FirstID && Owning && isRedeclarableDeclKind(DeclKind) &&
Reader.PendingDeclChainsKnown.insert(FirstID))
Reader.PendingDeclChains.push_back(FirstID);
}
/// \brief Retrieve the first ID.
GlobalDeclID getFirstID() const { return FirstID; }
/// \brief Do not introduce this declaration ID into the set of pending
/// declaration chains.
void suppress() {
Owning = false;
}
};
/// \brief Class used to capture the result of searching for an existing
/// declaration of a specific kind and name, along with the ability
/// to update the place where this result was found (the declaration
/// chain hanging off an identifier or the DeclContext we searched in)
/// if requested.
class FindExistingResult {
ASTReader &Reader;
NamedDecl *New;
NamedDecl *Existing;
mutable bool AddResult;
void operator=(FindExistingResult&) LLVM_DELETED_FUNCTION;
public:
FindExistingResult(ASTReader &Reader)
: Reader(Reader), New(0), Existing(0), AddResult(false) { }
FindExistingResult(ASTReader &Reader, NamedDecl *New, NamedDecl *Existing)
: Reader(Reader), New(New), Existing(Existing), AddResult(true) { }
FindExistingResult(const FindExistingResult &Other)
: Reader(Other.Reader), New(Other.New), Existing(Other.Existing),
AddResult(Other.AddResult)
{
Other.AddResult = false;
}
~FindExistingResult();
/// \brief Suppress the addition of this result into the known set of
/// names.
void suppress() { AddResult = false; }
operator NamedDecl*() const { return Existing; }
template<typename T>
operator T*() const { return dyn_cast_or_null<T>(Existing); }
};
FindExistingResult findExisting(NamedDecl *D);
public:
ASTDeclReader(ASTReader &Reader, ModuleFile &F,
DeclID thisDeclID,
unsigned RawLocation,
const RecordData &Record, unsigned &Idx)
: Reader(Reader), F(F), ThisDeclID(thisDeclID),
RawLocation(RawLocation), Record(Record), Idx(Idx),
TypeIDForTypeDecl(0), HasPendingBody(false) { }
static void attachPreviousDecl(Decl *D, Decl *previous);
static void attachLatestDecl(Decl *D, Decl *latest);
/// \brief Determine whether this declaration has a pending body.
bool hasPendingBody() const { return HasPendingBody; }
void Visit(Decl *D);
void UpdateDecl(Decl *D, ModuleFile &ModuleFile,
const RecordData &Record);
static void setNextObjCCategory(ObjCCategoryDecl *Cat,
ObjCCategoryDecl *Next) {
Cat->NextClassCategory = Next;
}
void VisitDecl(Decl *D);
void VisitTranslationUnitDecl(TranslationUnitDecl *TU);
void VisitNamedDecl(NamedDecl *ND);
void VisitLabelDecl(LabelDecl *LD);
void VisitNamespaceDecl(NamespaceDecl *D);
void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
void VisitTypeDecl(TypeDecl *TD);
void VisitTypedefNameDecl(TypedefNameDecl *TD);
void VisitTypedefDecl(TypedefDecl *TD);
void VisitTypeAliasDecl(TypeAliasDecl *TD);
void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D);
RedeclarableResult VisitTagDecl(TagDecl *TD);
void VisitEnumDecl(EnumDecl *ED);
RedeclarableResult VisitRecordDeclImpl(RecordDecl *RD);
void VisitRecordDecl(RecordDecl *RD) { VisitRecordDeclImpl(RD); }
RedeclarableResult VisitCXXRecordDeclImpl(CXXRecordDecl *D);
void VisitCXXRecordDecl(CXXRecordDecl *D) { VisitCXXRecordDeclImpl(D); }
RedeclarableResult VisitClassTemplateSpecializationDeclImpl(
ClassTemplateSpecializationDecl *D);
void VisitClassTemplateSpecializationDecl(
ClassTemplateSpecializationDecl *D) {
VisitClassTemplateSpecializationDeclImpl(D);
}
void VisitClassTemplatePartialSpecializationDecl(
ClassTemplatePartialSpecializationDecl *D);
void VisitClassScopeFunctionSpecializationDecl(
ClassScopeFunctionSpecializationDecl *D);
RedeclarableResult
VisitVarTemplateSpecializationDeclImpl(VarTemplateSpecializationDecl *D);
void VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D) {
VisitVarTemplateSpecializationDeclImpl(D);
}
void VisitVarTemplatePartialSpecializationDecl(
VarTemplatePartialSpecializationDecl *D);
void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
void VisitValueDecl(ValueDecl *VD);
void VisitEnumConstantDecl(EnumConstantDecl *ECD);
void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
void VisitDeclaratorDecl(DeclaratorDecl *DD);
void VisitFunctionDecl(FunctionDecl *FD);
void VisitCXXMethodDecl(CXXMethodDecl *D);
void VisitCXXConstructorDecl(CXXConstructorDecl *D);
void VisitCXXDestructorDecl(CXXDestructorDecl *D);
void VisitCXXConversionDecl(CXXConversionDecl *D);
void VisitFieldDecl(FieldDecl *FD);
void VisitMSPropertyDecl(MSPropertyDecl *FD);
void VisitIndirectFieldDecl(IndirectFieldDecl *FD);
RedeclarableResult VisitVarDeclImpl(VarDecl *D);
void VisitVarDecl(VarDecl *VD) { VisitVarDeclImpl(VD); }
void VisitImplicitParamDecl(ImplicitParamDecl *PD);
void VisitParmVarDecl(ParmVarDecl *PD);
void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
void VisitTemplateDecl(TemplateDecl *D);
RedeclarableResult VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D);
void VisitClassTemplateDecl(ClassTemplateDecl *D);
void VisitVarTemplateDecl(VarTemplateDecl *D);
void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D);
void VisitUsingDecl(UsingDecl *D);
void VisitUsingShadowDecl(UsingShadowDecl *D);
void VisitLinkageSpecDecl(LinkageSpecDecl *D);
void VisitFileScopeAsmDecl(FileScopeAsmDecl *AD);
void VisitImportDecl(ImportDecl *D);
void VisitAccessSpecDecl(AccessSpecDecl *D);
void VisitFriendDecl(FriendDecl *D);
void VisitFriendTemplateDecl(FriendTemplateDecl *D);
void VisitStaticAssertDecl(StaticAssertDecl *D);
void VisitBlockDecl(BlockDecl *BD);
void VisitCapturedDecl(CapturedDecl *CD);
void VisitEmptyDecl(EmptyDecl *D);
std::pair<uint64_t, uint64_t> VisitDeclContext(DeclContext *DC);
template<typename T>
RedeclarableResult VisitRedeclarable(Redeclarable<T> *D);
template<typename T>
void mergeRedeclarable(Redeclarable<T> *D, RedeclarableResult &Redecl);
// FIXME: Reorder according to DeclNodes.td?
void VisitObjCMethodDecl(ObjCMethodDecl *D);
void VisitObjCContainerDecl(ObjCContainerDecl *D);
void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
void VisitObjCIvarDecl(ObjCIvarDecl *D);
void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
void VisitObjCImplDecl(ObjCImplDecl *D);
void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D);
};
}
uint64_t ASTDeclReader::GetCurrentCursorOffset() {
return F.DeclsCursor.GetCurrentBitNo() + F.GlobalBitOffset;
}
void ASTDeclReader::Visit(Decl *D) {
DeclVisitor<ASTDeclReader, void>::Visit(D);
if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)) {
if (DD->DeclInfo) {
DeclaratorDecl::ExtInfo *Info =
DD->DeclInfo.get<DeclaratorDecl::ExtInfo *>();
Info->TInfo =
GetTypeSourceInfo(Record, Idx);
}
else {
DD->DeclInfo = GetTypeSourceInfo(Record, Idx);
}
}
if (TypeDecl *TD = dyn_cast<TypeDecl>(D)) {
// if we have a fully initialized TypeDecl, we can safely read its type now.
TD->setTypeForDecl(Reader.GetType(TypeIDForTypeDecl).getTypePtrOrNull());
} else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) {
// if we have a fully initialized TypeDecl, we can safely read its type now.
ID->TypeForDecl = Reader.GetType(TypeIDForTypeDecl).getTypePtrOrNull();
} else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
// FunctionDecl's body was written last after all other Stmts/Exprs.
// We only read it if FD doesn't already have a body (e.g., from another
// module).
// FIXME: Also consider = default and = delete.
// FIXME: Can we diagnose ODR violations somehow?
if (Record[Idx++]) {
Reader.PendingBodies[FD] = GetCurrentCursorOffset();
HasPendingBody = true;
}
}
}
void ASTDeclReader::VisitDecl(Decl *D) {
if (D->isTemplateParameter()) {
// We don't want to deserialize the DeclContext of a template
// parameter immediately, because the template parameter might be
// used in the formulation of its DeclContext. Use the translation
// unit DeclContext as a placeholder.
GlobalDeclID SemaDCIDForTemplateParmDecl = ReadDeclID(Record, Idx);
GlobalDeclID LexicalDCIDForTemplateParmDecl = ReadDeclID(Record, Idx);
Reader.addPendingDeclContextInfo(D,
SemaDCIDForTemplateParmDecl,
LexicalDCIDForTemplateParmDecl);
D->setDeclContext(Reader.getContext().getTranslationUnitDecl());
} else {
DeclContext *SemaDC = ReadDeclAs<DeclContext>(Record, Idx);
DeclContext *LexicalDC = ReadDeclAs<DeclContext>(Record, Idx);
// Avoid calling setLexicalDeclContext() directly because it uses
// Decl::getASTContext() internally which is unsafe during derialization.
D->setDeclContextsImpl(SemaDC, LexicalDC, Reader.getContext());
}
D->setLocation(Reader.ReadSourceLocation(F, RawLocation));
D->setInvalidDecl(Record[Idx++]);
if (Record[Idx++]) { // hasAttrs
AttrVec Attrs;
Reader.ReadAttributes(F, Attrs, Record, Idx);
// Avoid calling setAttrs() directly because it uses Decl::getASTContext()
// internally which is unsafe during derialization.
D->setAttrsImpl(Attrs, Reader.getContext());
}
D->setImplicit(Record[Idx++]);
D->setUsed(Record[Idx++]);
D->setReferenced(Record[Idx++]);
D->setTopLevelDeclInObjCContainer(Record[Idx++]);
D->setAccess((AccessSpecifier)Record[Idx++]);
D->FromASTFile = true;
D->setModulePrivate(Record[Idx++]);
D->Hidden = D->isModulePrivate();
// Determine whether this declaration is part of a (sub)module. If so, it
// may not yet be visible.
if (unsigned SubmoduleID = readSubmoduleID(Record, Idx)) {
// Store the owning submodule ID in the declaration.
D->setOwningModuleID(SubmoduleID);
// Module-private declarations are never visible, so there is no work to do.
if (!D->isModulePrivate()) {
if (Module *Owner = Reader.getSubmodule(SubmoduleID)) {
if (Owner->NameVisibility != Module::AllVisible) {
// The owning module is not visible. Mark this declaration as hidden.
D->Hidden = true;
// Note that this declaration was hidden because its owning module is
// not yet visible.
Reader.HiddenNamesMap[Owner].push_back(D);
}
}
}
}
}
void ASTDeclReader::VisitTranslationUnitDecl(TranslationUnitDecl *TU) {
llvm_unreachable("Translation units are not serialized");
}
void ASTDeclReader::VisitNamedDecl(NamedDecl *ND) {
VisitDecl(ND);
ND->setDeclName(Reader.ReadDeclarationName(F, Record, Idx));
}
void ASTDeclReader::VisitTypeDecl(TypeDecl *TD) {
VisitNamedDecl(TD);
TD->setLocStart(ReadSourceLocation(Record, Idx));
// Delay type reading until after we have fully initialized the decl.
TypeIDForTypeDecl = Reader.getGlobalTypeID(F, Record[Idx++]);
}
void ASTDeclReader::VisitTypedefNameDecl(TypedefNameDecl *TD) {
RedeclarableResult Redecl = VisitRedeclarable(TD);
VisitTypeDecl(TD);
TypeSourceInfo *TInfo = GetTypeSourceInfo(Record, Idx);
if (Record[Idx++]) { // isModed
QualType modedT = Reader.readType(F, Record, Idx);
TD->setModedTypeSourceInfo(TInfo, modedT);
} else
TD->setTypeSourceInfo(TInfo);
mergeRedeclarable(TD, Redecl);
}
void ASTDeclReader::VisitTypedefDecl(TypedefDecl *TD) {
VisitTypedefNameDecl(TD);
}
void ASTDeclReader::VisitTypeAliasDecl(TypeAliasDecl *TD) {
VisitTypedefNameDecl(TD);
}
ASTDeclReader::RedeclarableResult ASTDeclReader::VisitTagDecl(TagDecl *TD) {
RedeclarableResult Redecl = VisitRedeclarable(TD);
VisitTypeDecl(TD);
TD->IdentifierNamespace = Record[Idx++];
TD->setTagKind((TagDecl::TagKind)Record[Idx++]);
TD->setCompleteDefinition(Record[Idx++]);
TD->setEmbeddedInDeclarator(Record[Idx++]);
TD->setFreeStanding(Record[Idx++]);
TD->setCompleteDefinitionRequired(Record[Idx++]);
TD->setRBraceLoc(ReadSourceLocation(Record, Idx));
if (Record[Idx++]) { // hasExtInfo
TagDecl::ExtInfo *Info = new (Reader.getContext()) TagDecl::ExtInfo();
ReadQualifierInfo(*Info, Record, Idx);
TD->TypedefNameDeclOrQualifier = Info;
} else
TD->setTypedefNameForAnonDecl(ReadDeclAs<TypedefNameDecl>(Record, Idx));
mergeRedeclarable(TD, Redecl);
return Redecl;
}
void ASTDeclReader::VisitEnumDecl(EnumDecl *ED) {
VisitTagDecl(ED);
if (TypeSourceInfo *TI = Reader.GetTypeSourceInfo(F, Record, Idx))
ED->setIntegerTypeSourceInfo(TI);
else
ED->setIntegerType(Reader.readType(F, Record, Idx));
ED->setPromotionType(Reader.readType(F, Record, Idx));
ED->setNumPositiveBits(Record[Idx++]);
ED->setNumNegativeBits(Record[Idx++]);
ED->IsScoped = Record[Idx++];
ED->IsScopedUsingClassTag = Record[Idx++];
ED->IsFixed = Record[Idx++];
if (EnumDecl *InstED = ReadDeclAs<EnumDecl>(Record, Idx)) {
TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
SourceLocation POI = ReadSourceLocation(Record, Idx);
ED->setInstantiationOfMemberEnum(Reader.getContext(), InstED, TSK);
ED->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
}
}
ASTDeclReader::RedeclarableResult
ASTDeclReader::VisitRecordDeclImpl(RecordDecl *RD) {
RedeclarableResult Redecl = VisitTagDecl(RD);
RD->setHasFlexibleArrayMember(Record[Idx++]);
RD->setAnonymousStructOrUnion(Record[Idx++]);
RD->setHasObjectMember(Record[Idx++]);
RD->setHasVolatileMember(Record[Idx++]);
return Redecl;
}
void ASTDeclReader::VisitValueDecl(ValueDecl *VD) {
VisitNamedDecl(VD);
VD->setType(Reader.readType(F, Record, Idx));
}
void ASTDeclReader::VisitEnumConstantDecl(EnumConstantDecl *ECD) {
VisitValueDecl(ECD);
if (Record[Idx++])
ECD->setInitExpr(Reader.ReadExpr(F));
ECD->setInitVal(Reader.ReadAPSInt(Record, Idx));
}
void ASTDeclReader::VisitDeclaratorDecl(DeclaratorDecl *DD) {
VisitValueDecl(DD);
DD->setInnerLocStart(ReadSourceLocation(Record, Idx));
if (Record[Idx++]) { // hasExtInfo
DeclaratorDecl::ExtInfo *Info
= new (Reader.getContext()) DeclaratorDecl::ExtInfo();
ReadQualifierInfo(*Info, Record, Idx);
DD->DeclInfo = Info;
}
}
void ASTDeclReader::VisitFunctionDecl(FunctionDecl *FD) {
RedeclarableResult Redecl = VisitRedeclarable(FD);
VisitDeclaratorDecl(FD);
ReadDeclarationNameLoc(FD->DNLoc, FD->getDeclName(), Record, Idx);
FD->IdentifierNamespace = Record[Idx++];
// FunctionDecl's body is handled last at ASTDeclReader::Visit,
// after everything else is read.
FD->SClass = (StorageClass)Record[Idx++];
FD->IsInline = Record[Idx++];
FD->IsInlineSpecified = Record[Idx++];
FD->IsVirtualAsWritten = Record[Idx++];
FD->IsPure = Record[Idx++];
FD->HasInheritedPrototype = Record[Idx++];
FD->HasWrittenPrototype = Record[Idx++];
FD->IsDeleted = Record[Idx++];
FD->IsTrivial = Record[Idx++];
FD->IsDefaulted = Record[Idx++];
FD->IsExplicitlyDefaulted = Record[Idx++];
FD->HasImplicitReturnZero = Record[Idx++];
FD->IsConstexpr = Record[Idx++];
FD->HasSkippedBody = Record[Idx++];
FD->IsLateTemplateParsed = Record[Idx++];
FD->setCachedLinkage(Linkage(Record[Idx++]));
FD->EndRangeLoc = ReadSourceLocation(Record, Idx);
switch ((FunctionDecl::TemplatedKind)Record[Idx++]) {
case FunctionDecl::TK_NonTemplate:
mergeRedeclarable(FD, Redecl);
break;
case FunctionDecl::TK_FunctionTemplate:
FD->setDescribedFunctionTemplate(ReadDeclAs<FunctionTemplateDecl>(Record,
Idx));
break;
case FunctionDecl::TK_MemberSpecialization: {
FunctionDecl *InstFD = ReadDeclAs<FunctionDecl>(Record, Idx);
TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
SourceLocation POI = ReadSourceLocation(Record, Idx);
FD->setInstantiationOfMemberFunction(Reader.getContext(), InstFD, TSK);
FD->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
break;
}
case FunctionDecl::TK_FunctionTemplateSpecialization: {
FunctionTemplateDecl *Template = ReadDeclAs<FunctionTemplateDecl>(Record,
Idx);
TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
// Template arguments.
SmallVector<TemplateArgument, 8> TemplArgs;
Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx);
// Template args as written.
SmallVector<TemplateArgumentLoc, 8> TemplArgLocs;
SourceLocation LAngleLoc, RAngleLoc;
bool HasTemplateArgumentsAsWritten = Record[Idx++];
if (HasTemplateArgumentsAsWritten) {
unsigned NumTemplateArgLocs = Record[Idx++];
TemplArgLocs.reserve(NumTemplateArgLocs);
for (unsigned i=0; i != NumTemplateArgLocs; ++i)
TemplArgLocs.push_back(
Reader.ReadTemplateArgumentLoc(F, Record, Idx));
LAngleLoc = ReadSourceLocation(Record, Idx);
RAngleLoc = ReadSourceLocation(Record, Idx);
}
SourceLocation POI = ReadSourceLocation(Record, Idx);
ASTContext &C = Reader.getContext();
TemplateArgumentList *TemplArgList
= TemplateArgumentList::CreateCopy(C, TemplArgs.data(), TemplArgs.size());
TemplateArgumentListInfo TemplArgsInfo(LAngleLoc, RAngleLoc);
for (unsigned i=0, e = TemplArgLocs.size(); i != e; ++i)
TemplArgsInfo.addArgument(TemplArgLocs[i]);
FunctionTemplateSpecializationInfo *FTInfo
= FunctionTemplateSpecializationInfo::Create(C, FD, Template, TSK,
TemplArgList,
HasTemplateArgumentsAsWritten ? &TemplArgsInfo : 0,
POI);
FD->TemplateOrSpecialization = FTInfo;
if (FD->isCanonicalDecl()) { // if canonical add to template's set.
// The template that contains the specializations set. It's not safe to
// use getCanonicalDecl on Template since it may still be initializing.
FunctionTemplateDecl *CanonTemplate
= ReadDeclAs<FunctionTemplateDecl>(Record, Idx);
// Get the InsertPos by FindNodeOrInsertPos() instead of calling
// InsertNode(FTInfo) directly to avoid the getASTContext() call in
// FunctionTemplateSpecializationInfo's Profile().
// We avoid getASTContext because a decl in the parent hierarchy may
// be initializing.
llvm::FoldingSetNodeID ID;
FunctionTemplateSpecializationInfo::Profile(ID, TemplArgs.data(),
TemplArgs.size(), C);
void *InsertPos = 0;
FunctionTemplateDecl::Common *CommonPtr = CanonTemplate->getCommonPtr();
CommonPtr->Specializations.FindNodeOrInsertPos(ID, InsertPos);
if (InsertPos)
CommonPtr->Specializations.InsertNode(FTInfo, InsertPos);
else {
assert(Reader.getContext().getLangOpts().Modules &&
"already deserialized this template specialization");
// FIXME: This specialization is a redeclaration of one from another
// module. Merge it.
}
}
break;
}
case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
// Templates.
UnresolvedSet<8> TemplDecls;
unsigned NumTemplates = Record[Idx++];
while (NumTemplates--)
TemplDecls.addDecl(ReadDeclAs<NamedDecl>(Record, Idx));
// Templates args.
TemplateArgumentListInfo TemplArgs;
unsigned NumArgs = Record[Idx++];
while (NumArgs--)
TemplArgs.addArgument(Reader.ReadTemplateArgumentLoc(F, Record, Idx));
TemplArgs.setLAngleLoc(ReadSourceLocation(Record, Idx));
TemplArgs.setRAngleLoc(ReadSourceLocation(Record, Idx));
FD->setDependentTemplateSpecialization(Reader.getContext(),
TemplDecls, TemplArgs);
break;
}
}
// Read in the parameters.
unsigned NumParams = Record[Idx++];
SmallVector<ParmVarDecl *, 16> Params;
Params.reserve(NumParams);
for (unsigned I = 0; I != NumParams; ++I)
Params.push_back(ReadDeclAs<ParmVarDecl>(Record, Idx));
FD->setParams(Reader.getContext(), Params);
}
void ASTDeclReader::VisitObjCMethodDecl(ObjCMethodDecl *MD) {
VisitNamedDecl(MD);
if (Record[Idx++]) {
// Load the body on-demand. Most clients won't care, because method
// definitions rarely show up in headers.
Reader.PendingBodies[MD] = GetCurrentCursorOffset();
HasPendingBody = true;
MD->setSelfDecl(ReadDeclAs<ImplicitParamDecl>(Record, Idx));
MD->setCmdDecl(ReadDeclAs<ImplicitParamDecl>(Record, Idx));
}
MD->setInstanceMethod(Record[Idx++]);
MD->setVariadic(Record[Idx++]);
MD->setPropertyAccessor(Record[Idx++]);
MD->setDefined(Record[Idx++]);
MD->IsOverriding = Record[Idx++];
MD->HasSkippedBody = Record[Idx++];
MD->IsRedeclaration = Record[Idx++];
MD->HasRedeclaration = Record[Idx++];
if (MD->HasRedeclaration)
Reader.getContext().setObjCMethodRedeclaration(MD,
ReadDeclAs<ObjCMethodDecl>(Record, Idx));
MD->setDeclImplementation((ObjCMethodDecl::ImplementationControl)Record[Idx++]);
MD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
MD->SetRelatedResultType(Record[Idx++]);
MD->setResultType(Reader.readType(F, Record, Idx));
MD->setResultTypeSourceInfo(GetTypeSourceInfo(Record, Idx));
MD->DeclEndLoc = ReadSourceLocation(Record, Idx);
unsigned NumParams = Record[Idx++];
SmallVector<ParmVarDecl *, 16> Params;
Params.reserve(NumParams);
for (unsigned I = 0; I != NumParams; ++I)
Params.push_back(ReadDeclAs<ParmVarDecl>(Record, Idx));
MD->SelLocsKind = Record[Idx++];
unsigned NumStoredSelLocs = Record[Idx++];
SmallVector<SourceLocation, 16> SelLocs;
SelLocs.reserve(NumStoredSelLocs);
for (unsigned i = 0; i != NumStoredSelLocs; ++i)
SelLocs.push_back(ReadSourceLocation(Record, Idx));
MD->setParamsAndSelLocs(Reader.getContext(), Params, SelLocs);
}
void ASTDeclReader::VisitObjCContainerDecl(ObjCContainerDecl *CD) {
VisitNamedDecl(CD);
CD->setAtStartLoc(ReadSourceLocation(Record, Idx));
CD->setAtEndRange(ReadSourceRange(Record, Idx));
}
void ASTDeclReader::VisitObjCInterfaceDecl(ObjCInterfaceDecl *ID) {
RedeclarableResult Redecl = VisitRedeclarable(ID);
VisitObjCContainerDecl(ID);
TypeIDForTypeDecl = Reader.getGlobalTypeID(F, Record[Idx++]);
mergeRedeclarable(ID, Redecl);
if (Record[Idx++]) {
// Read the definition.
ID->allocateDefinitionData();
// Set the definition data of the canonical declaration, so other
// redeclarations will see it.
ID->getCanonicalDecl()->Data = ID->Data;
ObjCInterfaceDecl::DefinitionData &Data = ID->data();
// Read the superclass.
Data.SuperClass = ReadDeclAs<ObjCInterfaceDecl>(Record, Idx);
Data.SuperClassLoc = ReadSourceLocation(Record, Idx);
Data.EndLoc = ReadSourceLocation(Record, Idx);
// Read the directly referenced protocols and their SourceLocations.
unsigned NumProtocols = Record[Idx++];
SmallVector<ObjCProtocolDecl *, 16> Protocols;
Protocols.reserve(NumProtocols);
for (unsigned I = 0; I != NumProtocols; ++I)
Protocols.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx));
SmallVector<SourceLocation, 16> ProtoLocs;
ProtoLocs.reserve(NumProtocols);
for (unsigned I = 0; I != NumProtocols; ++I)
ProtoLocs.push_back(ReadSourceLocation(Record, Idx));
ID->setProtocolList(Protocols.data(), NumProtocols, ProtoLocs.data(),
Reader.getContext());
// Read the transitive closure of protocols referenced by this class.
NumProtocols = Record[Idx++];
Protocols.clear();
Protocols.reserve(NumProtocols);
for (unsigned I = 0; I != NumProtocols; ++I)
Protocols.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx));
ID->data().AllReferencedProtocols.set(Protocols.data(), NumProtocols,
Reader.getContext());
// We will rebuild this list lazily.
ID->setIvarList(0);
// Note that we have deserialized a definition.
Reader.PendingDefinitions.insert(ID);
// Note that we've loaded this Objective-C class.
Reader.ObjCClassesLoaded.push_back(ID);
} else {
ID->Data = ID->getCanonicalDecl()->Data;
}
}
void ASTDeclReader::VisitObjCIvarDecl(ObjCIvarDecl *IVD) {
VisitFieldDecl(IVD);
IVD->setAccessControl((ObjCIvarDecl::AccessControl)Record[Idx++]);
// This field will be built lazily.
IVD->setNextIvar(0);
bool synth = Record[Idx++];
IVD->setSynthesize(synth);
}
void ASTDeclReader::VisitObjCProtocolDecl(ObjCProtocolDecl *PD) {
RedeclarableResult Redecl = VisitRedeclarable(PD);
VisitObjCContainerDecl(PD);
mergeRedeclarable(PD, Redecl);
if (Record[Idx++]) {
// Read the definition.
PD->allocateDefinitionData();
// Set the definition data of the canonical declaration, so other
// redeclarations will see it.
PD->getCanonicalDecl()->Data = PD->Data;
unsigned NumProtoRefs = Record[Idx++];
SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
ProtoRefs.reserve(NumProtoRefs);
for (unsigned I = 0; I != NumProtoRefs; ++I)
ProtoRefs.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx));
SmallVector<SourceLocation, 16> ProtoLocs;
ProtoLocs.reserve(NumProtoRefs);
for (unsigned I = 0; I != NumProtoRefs; ++I)
ProtoLocs.push_back(ReadSourceLocation(Record, Idx));
PD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
Reader.getContext());
// Note that we have deserialized a definition.
Reader.PendingDefinitions.insert(PD);
} else {
PD->Data = PD->getCanonicalDecl()->Data;
}
}
void ASTDeclReader::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *FD) {
VisitFieldDecl(FD);
}
void ASTDeclReader::VisitObjCCategoryDecl(ObjCCategoryDecl *CD) {
VisitObjCContainerDecl(CD);
CD->setCategoryNameLoc(ReadSourceLocation(Record, Idx));
CD->setIvarLBraceLoc(ReadSourceLocation(Record, Idx));
CD->setIvarRBraceLoc(ReadSourceLocation(Record, Idx));
// Note that this category has been deserialized. We do this before
// deserializing the interface declaration, so that it will consider this
/// category.
Reader.CategoriesDeserialized.insert(CD);
CD->ClassInterface = ReadDeclAs<ObjCInterfaceDecl>(Record, Idx);
unsigned NumProtoRefs = Record[Idx++];
SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
ProtoRefs.reserve(NumProtoRefs);
for (unsigned I = 0; I != NumProtoRefs; ++I)
ProtoRefs.push_back(ReadDeclAs<ObjCProtocolDecl>(Record, Idx));
SmallVector<SourceLocation, 16> ProtoLocs;
ProtoLocs.reserve(NumProtoRefs);
for (unsigned I = 0; I != NumProtoRefs; ++I)
ProtoLocs.push_back(ReadSourceLocation(Record, Idx));
CD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
Reader.getContext());
}
void ASTDeclReader::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *CAD) {
VisitNamedDecl(CAD);
CAD->setClassInterface(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx));
}
void ASTDeclReader::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
VisitNamedDecl(D);
D->setAtLoc(ReadSourceLocation(Record, Idx));
D->setLParenLoc(ReadSourceLocation(Record, Idx));
D->setType(GetTypeSourceInfo(Record, Idx));
// FIXME: stable encoding
D->setPropertyAttributes(
(ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]);
D->setPropertyAttributesAsWritten(
(ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]);
// FIXME: stable encoding
D->setPropertyImplementation(
(ObjCPropertyDecl::PropertyControl)Record[Idx++]);
D->setGetterName(Reader.ReadDeclarationName(F,Record, Idx).getObjCSelector());
D->setSetterName(Reader.ReadDeclarationName(F,Record, Idx).getObjCSelector());
D->setGetterMethodDecl(ReadDeclAs<ObjCMethodDecl>(Record, Idx));
D->setSetterMethodDecl(ReadDeclAs<ObjCMethodDecl>(Record, Idx));
D->setPropertyIvarDecl(ReadDeclAs<ObjCIvarDecl>(Record, Idx));
}
void ASTDeclReader::VisitObjCImplDecl(ObjCImplDecl *D) {
VisitObjCContainerDecl(D);
D->setClassInterface(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx));
}
void ASTDeclReader::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
VisitObjCImplDecl(D);
D->setIdentifier(Reader.GetIdentifierInfo(F, Record, Idx));
D->CategoryNameLoc = ReadSourceLocation(Record, Idx);
}
void ASTDeclReader::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
VisitObjCImplDecl(D);
D->setSuperClass(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx));
D->SuperLoc = ReadSourceLocation(Record, Idx);
D->setIvarLBraceLoc(ReadSourceLocation(Record, Idx));
D->setIvarRBraceLoc(ReadSourceLocation(Record, Idx));
D->setHasNonZeroConstructors(Record[Idx++]);
D->setHasDestructors(Record[Idx++]);
llvm::tie(D->IvarInitializers, D->NumIvarInitializers)
= Reader.ReadCXXCtorInitializers(F, Record, Idx);
}
void ASTDeclReader::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
VisitDecl(D);
D->setAtLoc(ReadSourceLocation(Record, Idx));
D->setPropertyDecl(ReadDeclAs<ObjCPropertyDecl>(Record, Idx));
D->PropertyIvarDecl = ReadDeclAs<ObjCIvarDecl>(Record, Idx);
D->IvarLoc = ReadSourceLocation(Record, Idx);
D->setGetterCXXConstructor(Reader.ReadExpr(F));
D->setSetterCXXAssignment(Reader.ReadExpr(F));
}
void ASTDeclReader::VisitFieldDecl(FieldDecl *FD) {
VisitDeclaratorDecl(FD);
FD->Mutable = Record[Idx++];
if (int BitWidthOrInitializer = Record[Idx++]) {
FD->InitializerOrBitWidth.setInt(BitWidthOrInitializer - 1);
FD->InitializerOrBitWidth.setPointer(Reader.ReadExpr(F));
}
if (!FD->getDeclName()) {
if (FieldDecl *Tmpl = ReadDeclAs<FieldDecl>(Record, Idx))
Reader.getContext().setInstantiatedFromUnnamedFieldDecl(FD, Tmpl);
}
}
void ASTDeclReader::VisitMSPropertyDecl(MSPropertyDecl *PD) {
VisitDeclaratorDecl(PD);
PD->GetterId = Reader.GetIdentifierInfo(F, Record, Idx);
PD->SetterId = Reader.GetIdentifierInfo(F, Record, Idx);
}
void ASTDeclReader::VisitIndirectFieldDecl(IndirectFieldDecl *FD) {
VisitValueDecl(FD);
FD->ChainingSize = Record[Idx++];
assert(FD->ChainingSize >= 2 && "Anonymous chaining must be >= 2");
FD->Chaining = new (Reader.getContext())NamedDecl*[FD->ChainingSize];
for (unsigned I = 0; I != FD->ChainingSize; ++I)
FD->Chaining[I] = ReadDeclAs<NamedDecl>(Record, Idx);
}
ASTDeclReader::RedeclarableResult ASTDeclReader::VisitVarDeclImpl(VarDecl *VD) {
RedeclarableResult Redecl = VisitRedeclarable(VD);
VisitDeclaratorDecl(VD);
VD->VarDeclBits.SClass = (StorageClass)Record[Idx++];
VD->VarDeclBits.TSCSpec = Record[Idx++];
VD->VarDeclBits.InitStyle = Record[Idx++];
VD->VarDeclBits.ExceptionVar = Record[Idx++];
VD->VarDeclBits.NRVOVariable = Record[Idx++];
VD->VarDeclBits.CXXForRangeDecl = Record[Idx++];
VD->VarDeclBits.ARCPseudoStrong = Record[Idx++];
VD->VarDeclBits.IsConstexpr = Record[Idx++];
VD->VarDeclBits.PreviousDeclInSameBlockScope = Record[Idx++];
VD->setCachedLinkage(Linkage(Record[Idx++]));
// Only true variables (not parameters or implicit parameters) can be merged.
if (VD->getKind() != Decl::ParmVar && VD->getKind() != Decl::ImplicitParam)
mergeRedeclarable(VD, Redecl);
if (uint64_t Val = Record[Idx++]) {
VD->setInit(Reader.ReadExpr(F));
if (Val > 1) {
EvaluatedStmt *Eval = VD->ensureEvaluatedStmt();
Eval->CheckedICE = true;
Eval->IsICE = Val == 3;
}
}
enum VarKind {
VarNotTemplate = 0, VarTemplate, StaticDataMemberSpecialization
};
switch ((VarKind)Record[Idx++]) {
case VarNotTemplate:
break;
case VarTemplate:
VD->setDescribedVarTemplate(ReadDeclAs<VarTemplateDecl>(Record, Idx));
break;
case StaticDataMemberSpecialization: { // HasMemberSpecializationInfo.
VarDecl *Tmpl = ReadDeclAs<VarDecl>(Record, Idx);
TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
SourceLocation POI = ReadSourceLocation(Record, Idx);
Reader.getContext().setInstantiatedFromStaticDataMember(VD, Tmpl, TSK,POI);
break;
}
}
return Redecl;
}
void ASTDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) {
VisitVarDecl(PD);
}
void ASTDeclReader::VisitParmVarDecl(ParmVarDecl *PD) {
VisitVarDecl(PD);
unsigned isObjCMethodParam = Record[Idx++];
unsigned scopeDepth = Record[Idx++];
unsigned scopeIndex = Record[Idx++];
unsigned declQualifier = Record[Idx++];
if (isObjCMethodParam) {
assert(scopeDepth == 0);
PD->setObjCMethodScopeInfo(scopeIndex);
PD->ParmVarDeclBits.ScopeDepthOrObjCQuals = declQualifier;
} else {
PD->setScopeInfo(scopeDepth, scopeIndex);
}
PD->ParmVarDeclBits.IsKNRPromoted = Record[Idx++];
PD->ParmVarDeclBits.HasInheritedDefaultArg = Record[Idx++];
if (Record[Idx++]) // hasUninstantiatedDefaultArg.
PD->setUninstantiatedDefaultArg(Reader.ReadExpr(F));
// FIXME: If this is a redeclaration of a function from another module, handle
// inheritance of default arguments.
}
void ASTDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) {
VisitDecl(AD);
AD->setAsmString(cast<StringLiteral>(Reader.ReadExpr(F)));
AD->setRParenLoc(ReadSourceLocation(Record, Idx));
}
void ASTDeclReader::VisitBlockDecl(BlockDecl *BD) {
VisitDecl(BD);
BD->setBody(cast_or_null<CompoundStmt>(Reader.ReadStmt(F)));
BD->setSignatureAsWritten(GetTypeSourceInfo(Record, Idx));
unsigned NumParams = Record[Idx++];
SmallVector<ParmVarDecl *, 16> Params;
Params.reserve(NumParams);
for (unsigned I = 0; I != NumParams; ++I)
Params.push_back(ReadDeclAs<ParmVarDecl>(Record, Idx));
BD->setParams(Params);
BD->setIsVariadic(Record[Idx++]);
BD->setBlockMissingReturnType(Record[Idx++]);
BD->setIsConversionFromLambda(Record[Idx++]);
bool capturesCXXThis = Record[Idx++];
unsigned numCaptures = Record[Idx++];
SmallVector<BlockDecl::Capture, 16> captures;
captures.reserve(numCaptures);
for (unsigned i = 0; i != numCaptures; ++i) {
VarDecl *decl = ReadDeclAs<VarDecl>(Record, Idx);
unsigned flags = Record[Idx++];
bool byRef = (flags & 1);
bool nested = (flags & 2);
Expr *copyExpr = ((flags & 4) ? Reader.ReadExpr(F) : 0);
captures.push_back(BlockDecl::Capture(decl, byRef, nested, copyExpr));
}
BD->setCaptures(Reader.getContext(), captures.begin(),
captures.end(), capturesCXXThis);
}
void ASTDeclReader::VisitCapturedDecl(CapturedDecl *CD) {
VisitDecl(CD);
// Body is set by VisitCapturedStmt.
for (unsigned i = 0; i < CD->NumParams; ++i)
CD->setParam(i, ReadDeclAs<ImplicitParamDecl>(Record, Idx));
}
void ASTDeclReader::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
VisitDecl(D);
D->setLanguage((LinkageSpecDecl::LanguageIDs)Record[Idx++]);
D->setExternLoc(ReadSourceLocation(Record, Idx));
D->setRBraceLoc(ReadSourceLocation(Record, Idx));
}
void ASTDeclReader::VisitLabelDecl(LabelDecl *D) {
VisitNamedDecl(D);
D->setLocStart(ReadSourceLocation(Record, Idx));
}
void ASTDeclReader::VisitNamespaceDecl(NamespaceDecl *D) {
RedeclarableResult Redecl = VisitRedeclarable(D);
VisitNamedDecl(D);
D->setInline(Record[Idx++]);
D->LocStart = ReadSourceLocation(Record, Idx);
D->RBraceLoc = ReadSourceLocation(Record, Idx);
// FIXME: At the point of this call, D->getCanonicalDecl() returns 0.
mergeRedeclarable(D, Redecl);
if (Redecl.getFirstID() == ThisDeclID) {
// Each module has its own anonymous namespace, which is disjoint from
// any other module's anonymous namespaces, so don't attach the anonymous
// namespace at all.
NamespaceDecl *Anon = ReadDeclAs<NamespaceDecl>(Record, Idx);
if (F.Kind != MK_Module)
D->setAnonymousNamespace(Anon);
} else {
// Link this namespace back to the first declaration, which has already
// been deserialized.
D->AnonOrFirstNamespaceAndInline.setPointer(D->getFirstDeclaration());
}
}
void ASTDeclReader::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
VisitNamedDecl(D);
D->NamespaceLoc = ReadSourceLocation(Record, Idx);
D->IdentLoc = ReadSourceLocation(Record, Idx);
D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
D->Namespace = ReadDeclAs<NamedDecl>(Record, Idx);
}
void ASTDeclReader::VisitUsingDecl(UsingDecl *D) {
VisitNamedDecl(D);
D->setUsingLoc(ReadSourceLocation(Record, Idx));
D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
ReadDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record, Idx);
D->FirstUsingShadow.setPointer(ReadDeclAs<UsingShadowDecl>(Record, Idx));
D->setTypename(Record[Idx++]);
if (NamedDecl *Pattern = ReadDeclAs<NamedDecl>(Record, Idx))
Reader.getContext().setInstantiatedFromUsingDecl(D, Pattern);
}
void ASTDeclReader::VisitUsingShadowDecl(UsingShadowDecl *D) {
VisitNamedDecl(D);
D->setTargetDecl(ReadDeclAs<NamedDecl>(Record, Idx));
D->UsingOrNextShadow = ReadDeclAs<NamedDecl>(Record, Idx);
UsingShadowDecl *Pattern = ReadDeclAs<UsingShadowDecl>(Record, Idx);
if (Pattern)
Reader.getContext().setInstantiatedFromUsingShadowDecl(D, Pattern);
}
void ASTDeclReader::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
VisitNamedDecl(D);
D->UsingLoc = ReadSourceLocation(Record, Idx);
D->NamespaceLoc = ReadSourceLocation(Record, Idx);
D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
D->NominatedNamespace = ReadDeclAs<NamedDecl>(Record, Idx);
D->CommonAncestor = ReadDeclAs<DeclContext>(Record, Idx);
}
void ASTDeclReader::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
VisitValueDecl(D);
D->setUsingLoc(ReadSourceLocation(Record, Idx));
D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
ReadDeclarationNameLoc(D->DNLoc, D->getDeclName(), Record, Idx);
}
void ASTDeclReader::VisitUnresolvedUsingTypenameDecl(
UnresolvedUsingTypenameDecl *D) {
VisitTypeDecl(D);
D->TypenameLocation = ReadSourceLocation(Record, Idx);
D->QualifierLoc = Reader.ReadNestedNameSpecifierLoc(F, Record, Idx);
}
void ASTDeclReader::ReadCXXDefinitionData(
struct CXXRecordDecl::DefinitionData &Data,
const RecordData &Record, unsigned &Idx) {
// Note: the caller has deserialized the IsLambda bit already.
Data.UserDeclaredConstructor = Record[Idx++];
Data.UserDeclaredSpecialMembers = Record[Idx++];
Data.Aggregate = Record[Idx++];
Data.PlainOldData = Record[Idx++];
Data.Empty = Record[Idx++];
Data.Polymorphic = Record[Idx++];
Data.Abstract = Record[Idx++];
Data.IsStandardLayout = Record[Idx++];
Data.HasNoNonEmptyBases = Record[Idx++];
Data.HasPrivateFields = Record[Idx++];
Data.HasProtectedFields = Record[Idx++];
Data.HasPublicFields = Record[Idx++];
Data.HasMutableFields = Record[Idx++];
Data.HasOnlyCMembers = Record[Idx++];
Data.HasInClassInitializer = Record[Idx++];
Data.HasUninitializedReferenceMember = Record[Idx++];
Data.NeedOverloadResolutionForMoveConstructor = Record[Idx++];
Data.NeedOverloadResolutionForMoveAssignment = Record[Idx++];
Data.NeedOverloadResolutionForDestructor = Record[Idx++];
Data.DefaultedMoveConstructorIsDeleted = Record[Idx++];
Data.DefaultedMoveAssignmentIsDeleted = Record[Idx++];
Data.DefaultedDestructorIsDeleted = Record[Idx++];
Data.HasTrivialSpecialMembers = Record[Idx++];
Data.HasIrrelevantDestructor = Record[Idx++];
Data.HasConstexprNonCopyMoveConstructor = Record[Idx++];
Data.DefaultedDefaultConstructorIsConstexpr = Record[Idx++];
Data.HasConstexprDefaultConstructor = Record[Idx++];
Data.HasNonLiteralTypeFieldsOrBases = Record[Idx++];
Data.ComputedVisibleConversions = Record[Idx++];
Data.UserProvidedDefaultConstructor = Record[Idx++];
Data.DeclaredSpecialMembers = Record[Idx++];
Data.ImplicitCopyConstructorHasConstParam = Record[Idx++];
Data.ImplicitCopyAssignmentHasConstParam = Record[Idx++];
Data.HasDeclaredCopyConstructorWithConstParam = Record[Idx++];
Data.HasDeclaredCopyAssignmentWithConstParam = Record[Idx++];
Data.FailedImplicitMoveConstructor = Record[Idx++];
Data.FailedImplicitMoveAssignment = Record[Idx++];
Data.NumBases = Record[Idx++];
if (Data.NumBases)
Data.Bases = Reader.readCXXBaseSpecifiers(F, Record, Idx);
Data.NumVBases = Record[Idx++];
if (Data.NumVBases)
Data.VBases = Reader.readCXXBaseSpecifiers(F, Record, Idx);
Reader.ReadUnresolvedSet(F, Data.Conversions, Record, Idx);
Reader.ReadUnresolvedSet(F, Data.VisibleConversions, Record, Idx);
assert(Data.Definition && "Data.Definition should be already set!");
Data.FirstFriend = Record[Idx++];
if (Data.IsLambda) {
typedef LambdaExpr::Capture Capture;
CXXRecordDecl::LambdaDefinitionData &Lambda
= static_cast<CXXRecordDecl::LambdaDefinitionData &>(Data);
Lambda.Dependent = Record[Idx++];
Lambda.NumCaptures = Record[Idx++];
Lambda.NumExplicitCaptures = Record[Idx++];
Lambda.ManglingNumber = Record[Idx++];
Lambda.ContextDecl = ReadDecl(Record, Idx);
Lambda.Captures
= (Capture*)Reader.Context.Allocate(sizeof(Capture)*Lambda.NumCaptures);
Capture *ToCapture = Lambda.Captures;
Lambda.MethodTyInfo = GetTypeSourceInfo(Record, Idx);
for (unsigned I = 0, N = Lambda.NumCaptures; I != N; ++I) {
SourceLocation Loc = ReadSourceLocation(Record, Idx);
bool IsImplicit = Record[Idx++];
LambdaCaptureKind Kind = static_cast<LambdaCaptureKind>(Record[Idx++]);
switch (Kind) {
case LCK_This:
*ToCapture++ = Capture(Loc, IsImplicit, Kind, 0, SourceLocation());
break;
case LCK_ByCopy:
case LCK_ByRef: {
VarDecl *Var = ReadDeclAs<VarDecl>(Record, Idx);
SourceLocation EllipsisLoc = ReadSourceLocation(Record, Idx);
*ToCapture++ = Capture(Loc, IsImplicit, Kind, Var, EllipsisLoc);
break;
}
case LCK_Init:
FieldDecl *Field = ReadDeclAs<FieldDecl>(Record, Idx);
*ToCapture++ = Capture(Field);
break;
}
}
}
}
ASTDeclReader::RedeclarableResult
ASTDeclReader::VisitCXXRecordDeclImpl(CXXRecordDecl *D) {
RedeclarableResult Redecl = VisitRecordDeclImpl(D);
ASTContext &C = Reader.getContext();
if (Record[Idx++]) {
// Determine whether this is a lambda closure type, so that we can
// allocate the appropriate DefinitionData structure.
bool IsLambda = Record[Idx++];
if (IsLambda)
D->DefinitionData = new (C) CXXRecordDecl::LambdaDefinitionData(D, 0,
false);
else
D->DefinitionData = new (C) struct CXXRecordDecl::DefinitionData(D);
// Propagate the DefinitionData pointer to the canonical declaration, so
// that all other deserialized declarations will see it.
// FIXME: Complain if there already is a DefinitionData!
D->getCanonicalDecl()->DefinitionData = D->DefinitionData;
ReadCXXDefinitionData(*D->DefinitionData, Record, Idx);
// Note that we have deserialized a definition. Any declarations
// deserialized before this one will be be given the DefinitionData pointer
// at the end.
Reader.PendingDefinitions.insert(D);
} else {
// Propagate DefinitionData pointer from the canonical declaration.
D->DefinitionData = D->getCanonicalDecl()->DefinitionData;
}
enum CXXRecKind {
CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
};
switch ((CXXRecKind)Record[Idx++]) {
case CXXRecNotTemplate:
break;
case CXXRecTemplate:
D->TemplateOrInstantiation = ReadDeclAs<ClassTemplateDecl>(Record, Idx);
break;
case CXXRecMemberSpecialization: {
CXXRecordDecl *RD = ReadDeclAs<CXXRecordDecl>(Record, Idx);
TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
SourceLocation POI = ReadSourceLocation(Record, Idx);
MemberSpecializationInfo *MSI = new (C) MemberSpecializationInfo(RD, TSK);
MSI->setPointOfInstantiation(POI);
D->TemplateOrInstantiation = MSI;
break;
}
}
// Load the key function to avoid deserializing every method so we can
// compute it.
if (D->IsCompleteDefinition) {
if (CXXMethodDecl *Key = ReadDeclAs<CXXMethodDecl>(Record, Idx))
C.KeyFunctions[D] = Key;
}
return Redecl;
}
void ASTDeclReader::VisitCXXMethodDecl(CXXMethodDecl *D) {
VisitFunctionDecl(D);
unsigned NumOverridenMethods = Record[Idx++];
while (NumOverridenMethods--) {
// Avoid invariant checking of CXXMethodDecl::addOverriddenMethod,
// MD may be initializing.
if (CXXMethodDecl *MD = ReadDeclAs<CXXMethodDecl>(Record, Idx))
Reader.getContext().addOverriddenMethod(D, MD);
}
}
void ASTDeclReader::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
VisitCXXMethodDecl(D);
D->IsExplicitSpecified = Record[Idx++];
llvm::tie(D->CtorInitializers, D->NumCtorInitializers)
= Reader.ReadCXXCtorInitializers(F, Record, Idx);
}
void ASTDeclReader::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
VisitCXXMethodDecl(D);
D->OperatorDelete = ReadDeclAs<FunctionDecl>(Record, Idx);
}
void ASTDeclReader::VisitCXXConversionDecl(CXXConversionDecl *D) {
VisitCXXMethodDecl(D);
D->IsExplicitSpecified = Record[Idx++];
}
void ASTDeclReader::VisitImportDecl(ImportDecl *D) {
VisitDecl(D);
D->ImportedAndComplete.setPointer(readModule(Record, Idx));
D->ImportedAndComplete.setInt(Record[Idx++]);
SourceLocation *StoredLocs = reinterpret_cast<SourceLocation *>(D + 1);
for (unsigned I = 0, N = Record.back(); I != N; ++I)
StoredLocs[I] = ReadSourceLocation(Record, Idx);
++Idx; // The number of stored source locations.
}
void ASTDeclReader::VisitAccessSpecDecl(AccessSpecDecl *D) {
VisitDecl(D);
D->setColonLoc(ReadSourceLocation(Record, Idx));
}
void ASTDeclReader::VisitFriendDecl(FriendDecl *D) {
VisitDecl(D);
if (Record[Idx++]) // hasFriendDecl
D->Friend = ReadDeclAs<NamedDecl>(Record, Idx);
else
D->Friend = GetTypeSourceInfo(Record, Idx);
for (unsigned i = 0; i != D->NumTPLists; ++i)
D->getTPLists()[i] = Reader.ReadTemplateParameterList(F, Record, Idx);
D->NextFriend = Record[Idx++];
D->UnsupportedFriend = (Record[Idx++] != 0);
D->FriendLoc = ReadSourceLocation(Record, Idx);
}
void ASTDeclReader::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
VisitDecl(D);
unsigned NumParams = Record[Idx++];
D->NumParams = NumParams;
D->Params = new TemplateParameterList*[NumParams];
for (unsigned i = 0; i != NumParams; ++i)
D->Params[i] = Reader.ReadTemplateParameterList(F, Record, Idx);
if (Record[Idx++]) // HasFriendDecl
D->Friend = ReadDeclAs<NamedDecl>(Record, Idx);
else
D->Friend = GetTypeSourceInfo(Record, Idx);
D->FriendLoc = ReadSourceLocation(Record, Idx);
}
void ASTDeclReader::VisitTemplateDecl(TemplateDecl *D) {
VisitNamedDecl(D);
NamedDecl *TemplatedDecl = ReadDeclAs<NamedDecl>(Record, Idx);
TemplateParameterList* TemplateParams
= Reader.ReadTemplateParameterList(F, Record, Idx);
D->init(TemplatedDecl, TemplateParams);
// FIXME: If this is a redeclaration of a template from another module, handle
// inheritance of default template arguments.
}
ASTDeclReader::RedeclarableResult
ASTDeclReader::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
RedeclarableResult Redecl = VisitRedeclarable(D);
// Make sure we've allocated the Common pointer first. We do this before
// VisitTemplateDecl so that getCommonPtr() can be used during initialization.
RedeclarableTemplateDecl *CanonD = D->getCanonicalDecl();
if (!CanonD->Common) {
CanonD->Common = CanonD->newCommon(Reader.getContext());
Reader.PendingDefinitions.insert(CanonD);
}
D->Common = CanonD->Common;
// If this is the first declaration of the template, fill in the information
// for the 'common' pointer.
if (ThisDeclID == Redecl.getFirstID()) {
if (RedeclarableTemplateDecl *RTD
= ReadDeclAs<RedeclarableTemplateDecl>(Record, Idx)) {
assert(RTD->getKind() == D->getKind() &&
"InstantiatedFromMemberTemplate kind mismatch");
D->setInstantiatedFromMemberTemplate(RTD);
if (Record[Idx++])
D->setMemberSpecialization();
}
}
VisitTemplateDecl(D);
D->IdentifierNamespace = Record[Idx++];
mergeRedeclarable(D, Redecl);
return Redecl;
}
void ASTDeclReader::VisitClassTemplateDecl(ClassTemplateDecl *D) {
RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D);
if (ThisDeclID == Redecl.getFirstID()) {
// This ClassTemplateDecl owns a CommonPtr; read it to keep track of all of
// the specializations.
SmallVector<serialization::DeclID, 2> SpecIDs;
SpecIDs.push_back(0);
// Specializations.
unsigned Size = Record[Idx++];
SpecIDs[0] += Size;
for (unsigned I = 0; I != Size; ++I)
SpecIDs.push_back(ReadDeclID(Record, Idx));
// Partial specializations.
Size = Record[Idx++];
SpecIDs[0] += Size;
for (unsigned I = 0; I != Size; ++I)
SpecIDs.push_back(ReadDeclID(Record, Idx));
ClassTemplateDecl::Common *CommonPtr = D->getCommonPtr();
if (SpecIDs[0]) {
typedef serialization::DeclID DeclID;
// FIXME: Append specializations!
CommonPtr->LazySpecializations
= new (Reader.getContext()) DeclID [SpecIDs.size()];
memcpy(CommonPtr->LazySpecializations, SpecIDs.data(),
SpecIDs.size() * sizeof(DeclID));
}
CommonPtr->InjectedClassNameType = Reader.readType(F, Record, Idx);
}
}
void ASTDeclReader::VisitVarTemplateDecl(VarTemplateDecl *D) {
RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D);
if (ThisDeclID == Redecl.getFirstID()) {
// This VarTemplateDecl owns a CommonPtr; read it to keep track of all of
// the specializations.
SmallVector<serialization::DeclID, 2> SpecIDs;
SpecIDs.push_back(0);
// Specializations.
unsigned Size = Record[Idx++];
SpecIDs[0] += Size;
for (unsigned I = 0; I != Size; ++I)
SpecIDs.push_back(ReadDeclID(Record, Idx));
// Partial specializations.
Size = Record[Idx++];
SpecIDs[0] += Size;
for (unsigned I = 0; I != Size; ++I)
SpecIDs.push_back(ReadDeclID(Record, Idx));
VarTemplateDecl::Common *CommonPtr = D->getCommonPtr();
if (SpecIDs[0]) {
typedef serialization::DeclID DeclID;
// FIXME: Append specializations!
CommonPtr->LazySpecializations =
new (Reader.getContext()) DeclID[SpecIDs.size()];
memcpy(CommonPtr->LazySpecializations, SpecIDs.data(),
SpecIDs.size() * sizeof(DeclID));
}
}
}
ASTDeclReader::RedeclarableResult
ASTDeclReader::VisitClassTemplateSpecializationDeclImpl(
ClassTemplateSpecializationDecl *D) {
RedeclarableResult Redecl = VisitCXXRecordDeclImpl(D);
ASTContext &C = Reader.getContext();
if (Decl *InstD = ReadDecl(Record, Idx)) {
if (ClassTemplateDecl *CTD = dyn_cast<ClassTemplateDecl>(InstD)) {
D->SpecializedTemplate = CTD;
} else {
SmallVector<TemplateArgument, 8> TemplArgs;
Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx);
TemplateArgumentList *ArgList
= TemplateArgumentList::CreateCopy(C, TemplArgs.data(),
TemplArgs.size());
ClassTemplateSpecializationDecl::SpecializedPartialSpecialization *PS
= new (C) ClassTemplateSpecializationDecl::
SpecializedPartialSpecialization();
PS->PartialSpecialization
= cast<ClassTemplatePartialSpecializationDecl>(InstD);
PS->TemplateArgs = ArgList;
D->SpecializedTemplate = PS;
}
}
// Explicit info.
if (TypeSourceInfo *TyInfo = GetTypeSourceInfo(Record, Idx)) {
ClassTemplateSpecializationDecl::ExplicitSpecializationInfo *ExplicitInfo
= new (C) ClassTemplateSpecializationDecl::ExplicitSpecializationInfo;
ExplicitInfo->TypeAsWritten = TyInfo;
ExplicitInfo->ExternLoc = ReadSourceLocation(Record, Idx);
ExplicitInfo->TemplateKeywordLoc = ReadSourceLocation(Record, Idx);
D->ExplicitInfo = ExplicitInfo;
}
SmallVector<TemplateArgument, 8> TemplArgs;
Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx);
D->TemplateArgs = TemplateArgumentList::CreateCopy(C, TemplArgs.data(),
TemplArgs.size());
D->PointOfInstantiation = ReadSourceLocation(Record, Idx);
D->SpecializationKind = (TemplateSpecializationKind)Record[Idx++];
bool writtenAsCanonicalDecl = Record[Idx++];
if (writtenAsCanonicalDecl) {
ClassTemplateDecl *CanonPattern = ReadDeclAs<ClassTemplateDecl>(Record,Idx);
if (D->isCanonicalDecl()) { // It's kept in the folding set.
if (ClassTemplatePartialSpecializationDecl *Partial =
dyn_cast<ClassTemplatePartialSpecializationDecl>(D)) {
CanonPattern->getCommonPtr()->PartialSpecializations
.GetOrInsertNode(Partial);
} else {
CanonPattern->getCommonPtr()->Specializations.GetOrInsertNode(D);
}
}
}
return Redecl;
}
void ASTDeclReader::VisitClassTemplatePartialSpecializationDecl(
ClassTemplatePartialSpecializationDecl *D) {
RedeclarableResult Redecl = VisitClassTemplateSpecializationDeclImpl(D);
D->TemplateParams = Reader.ReadTemplateParameterList(F, Record, Idx);
D->ArgsAsWritten = Reader.ReadASTTemplateArgumentListInfo(F, Record, Idx);
// These are read/set from/to the first declaration.
if (ThisDeclID == Redecl.getFirstID()) {
D->InstantiatedFromMember.setPointer(
ReadDeclAs<ClassTemplatePartialSpecializationDecl>(Record, Idx));
D->InstantiatedFromMember.setInt(Record[Idx++]);
}
}
void ASTDeclReader::VisitClassScopeFunctionSpecializationDecl(
ClassScopeFunctionSpecializationDecl *D) {
VisitDecl(D);
D->Specialization = ReadDeclAs<CXXMethodDecl>(Record, Idx);
}
void ASTDeclReader::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D);
if (ThisDeclID == Redecl.getFirstID()) {
// This FunctionTemplateDecl owns a CommonPtr; read it.
// Read the function specialization declaration IDs. The specializations
// themselves will be loaded if they're needed.
if (unsigned NumSpecs = Record[Idx++]) {
// FIXME: Append specializations!
FunctionTemplateDecl::Common *CommonPtr = D->getCommonPtr();
CommonPtr->LazySpecializations = new (Reader.getContext())
serialization::DeclID[NumSpecs + 1];
CommonPtr->LazySpecializations[0] = NumSpecs;
for (unsigned I = 0; I != NumSpecs; ++I)
CommonPtr->LazySpecializations[I + 1] = ReadDeclID(Record, Idx);
}
}
}
ASTDeclReader::RedeclarableResult
ASTDeclReader::VisitVarTemplateSpecializationDeclImpl(
VarTemplateSpecializationDecl *D) {
RedeclarableResult Redecl = VisitVarDeclImpl(D);
ASTContext &C = Reader.getContext();
if (Decl *InstD = ReadDecl(Record, Idx)) {
if (VarTemplateDecl *VTD = dyn_cast<VarTemplateDecl>(InstD)) {
D->SpecializedTemplate = VTD;
} else {
SmallVector<TemplateArgument, 8> TemplArgs;
Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx);
TemplateArgumentList *ArgList = TemplateArgumentList::CreateCopy(
C, TemplArgs.data(), TemplArgs.size());
VarTemplateSpecializationDecl::SpecializedPartialSpecialization *PS =
new (C)
VarTemplateSpecializationDecl::SpecializedPartialSpecialization();
PS->PartialSpecialization =
cast<VarTemplatePartialSpecializationDecl>(InstD);
PS->TemplateArgs = ArgList;
D->SpecializedTemplate = PS;
}
}
// Explicit info.
if (TypeSourceInfo *TyInfo = GetTypeSourceInfo(Record, Idx)) {
VarTemplateSpecializationDecl::ExplicitSpecializationInfo *ExplicitInfo =
new (C) VarTemplateSpecializationDecl::ExplicitSpecializationInfo;
ExplicitInfo->TypeAsWritten = TyInfo;
ExplicitInfo->ExternLoc = ReadSourceLocation(Record, Idx);
ExplicitInfo->TemplateKeywordLoc = ReadSourceLocation(Record, Idx);
D->ExplicitInfo = ExplicitInfo;
}
SmallVector<TemplateArgument, 8> TemplArgs;
Reader.ReadTemplateArgumentList(TemplArgs, F, Record, Idx);
D->TemplateArgs =
TemplateArgumentList::CreateCopy(C, TemplArgs.data(), TemplArgs.size());
D->PointOfInstantiation = ReadSourceLocation(Record, Idx);
D->SpecializationKind = (TemplateSpecializationKind)Record[Idx++];
bool writtenAsCanonicalDecl = Record[Idx++];
if (writtenAsCanonicalDecl) {
VarTemplateDecl *CanonPattern = ReadDeclAs<VarTemplateDecl>(Record, Idx);
if (D->isCanonicalDecl()) { // It's kept in the folding set.
if (VarTemplatePartialSpecializationDecl *Partial =
dyn_cast<VarTemplatePartialSpecializationDecl>(D)) {
CanonPattern->getCommonPtr()->PartialSpecializations
.GetOrInsertNode(Partial);
} else {
CanonPattern->getCommonPtr()->Specializations.GetOrInsertNode(D);
}
}
}
return Redecl;
}
void ASTDeclReader::VisitVarTemplatePartialSpecializationDecl(
VarTemplatePartialSpecializationDecl *D) {
RedeclarableResult Redecl = VisitVarTemplateSpecializationDeclImpl(D);
D->TemplateParams = Reader.ReadTemplateParameterList(F, Record, Idx);
D->ArgsAsWritten = Reader.ReadASTTemplateArgumentListInfo(F, Record, Idx);
// These are read/set from/to the first declaration.
if (ThisDeclID == Redecl.getFirstID()) {
D->InstantiatedFromMember.setPointer(
ReadDeclAs<VarTemplatePartialSpecializationDecl>(Record, Idx));
D->InstantiatedFromMember.setInt(Record[Idx++]);
}
}
void ASTDeclReader::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
VisitTypeDecl(D);
D->setDeclaredWithTypename(Record[Idx++]);
bool Inherited = Record[Idx++];
TypeSourceInfo *DefArg = GetTypeSourceInfo(Record, Idx);
D->setDefaultArgument(DefArg, Inherited);
}
void ASTDeclReader::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
VisitDeclaratorDecl(D);
// TemplateParmPosition.
D->setDepth(Record[Idx++]);
D->setPosition(Record[Idx++]);
if (D->isExpandedParameterPack()) {
void **Data = reinterpret_cast<void **>(D + 1);
for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) {
Data[2*I] = Reader.readType(F, Record, Idx).getAsOpaquePtr();
Data[2*I + 1] = GetTypeSourceInfo(Record, Idx);
}
} else {
// Rest of NonTypeTemplateParmDecl.
D->ParameterPack = Record[Idx++];
if (Record[Idx++]) {
Expr *DefArg = Reader.ReadExpr(F);
bool Inherited = Record[Idx++];
D->setDefaultArgument(DefArg, Inherited);
}
}
}
void ASTDeclReader::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
VisitTemplateDecl(D);
// TemplateParmPosition.
D->setDepth(Record[Idx++]);
D->setPosition(Record[Idx++]);
if (D->isExpandedParameterPack()) {
void **Data = reinterpret_cast<void **>(D + 1);
for (unsigned I = 0, N = D->getNumExpansionTemplateParameters();
I != N; ++I)
Data[I] = Reader.ReadTemplateParameterList(F, Record, Idx);
} else {
// Rest of TemplateTemplateParmDecl.
TemplateArgumentLoc Arg = Reader.ReadTemplateArgumentLoc(F, Record, Idx);
bool IsInherited = Record[Idx++];
D->setDefaultArgument(Arg, IsInherited);
D->ParameterPack = Record[Idx++];
}
}
void ASTDeclReader::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) {
VisitRedeclarableTemplateDecl(D);
}
void ASTDeclReader::VisitStaticAssertDecl(StaticAssertDecl *D) {
VisitDecl(D);
D->AssertExprAndFailed.setPointer(Reader.ReadExpr(F));
D->AssertExprAndFailed.setInt(Record[Idx++]);
D->Message = cast<StringLiteral>(Reader.ReadExpr(F));
D->RParenLoc = ReadSourceLocation(Record, Idx);
}
void ASTDeclReader::VisitEmptyDecl(EmptyDecl *D) {
VisitDecl(D);
}
std::pair<uint64_t, uint64_t>
ASTDeclReader::VisitDeclContext(DeclContext *DC) {
uint64_t LexicalOffset = Record[Idx++];
uint64_t VisibleOffset = Record[Idx++];
return std::make_pair(LexicalOffset, VisibleOffset);
}
template <typename T>
ASTDeclReader::RedeclarableResult
ASTDeclReader::VisitRedeclarable(Redeclarable<T> *D) {
DeclID FirstDeclID = ReadDeclID(Record, Idx);
// 0 indicates that this declaration was the only declaration of its entity,
// and is used for space optimization.
if (FirstDeclID == 0)
FirstDeclID = ThisDeclID;
T *FirstDecl = cast_or_null<T>(Reader.GetDecl(FirstDeclID));
if (FirstDecl != D) {
// We delay loading of the redeclaration chain to avoid deeply nested calls.
// We temporarily set the first (canonical) declaration as the previous one
// which is the one that matters and mark the real previous DeclID to be
// loaded & attached later on.
D->RedeclLink = Redeclarable<T>::PreviousDeclLink(FirstDecl);
}
// Note that this declaration has been deserialized.
Reader.RedeclsDeserialized.insert(static_cast<T *>(D));
// The result structure takes care to note that we need to load the
// other declaration chains for this ID.
return RedeclarableResult(Reader, FirstDeclID,
static_cast<T *>(D)->getKind());
}
/// \brief Attempts to merge the given declaration (D) with another declaration
/// of the same entity.
template<typename T>
void ASTDeclReader::mergeRedeclarable(Redeclarable<T> *D,
RedeclarableResult &Redecl) {
// If modules are not available, there is no reason to perform this merge.
if (!Reader.getContext().getLangOpts().Modules)
return;
if (FindExistingResult ExistingRes = findExisting(static_cast<T*>(D))) {
if (T *Existing = ExistingRes) {
T *ExistingCanon = Existing->getCanonicalDecl();
T *DCanon = static_cast<T*>(D)->getCanonicalDecl();
if (ExistingCanon != DCanon) {
// Have our redeclaration link point back at the canonical declaration
// of the existing declaration, so that this declaration has the
// appropriate canonical declaration.
D->RedeclLink = Redeclarable<T>::PreviousDeclLink(ExistingCanon);
// When we merge a namespace, update its pointer to the first namespace.
if (NamespaceDecl *Namespace
= dyn_cast<NamespaceDecl>(static_cast<T*>(D))) {
Namespace->AnonOrFirstNamespaceAndInline.setPointer(
static_cast<NamespaceDecl *>(static_cast<void*>(ExistingCanon)));
}
// Don't introduce DCanon into the set of pending declaration chains.
Redecl.suppress();
// Introduce ExistingCanon into the set of pending declaration chains,
// if in fact it came from a module file.
if (ExistingCanon->isFromASTFile()) {
GlobalDeclID ExistingCanonID = ExistingCanon->getGlobalID();
assert(ExistingCanonID && "Unrecorded canonical declaration ID?");
if (Reader.PendingDeclChainsKnown.insert(ExistingCanonID))
Reader.PendingDeclChains.push_back(ExistingCanonID);
}
// If this declaration was the canonical declaration, make a note of
// that. We accept the linear algorithm here because the number of
// unique canonical declarations of an entity should always be tiny.
if (DCanon == static_cast<T*>(D)) {
SmallVectorImpl<DeclID> &Merged = Reader.MergedDecls[ExistingCanon];
if (std::find(Merged.begin(), Merged.end(), Redecl.getFirstID())
== Merged.end())
Merged.push_back(Redecl.getFirstID());
// If ExistingCanon did not come from a module file, introduce the
// first declaration that *does* come from a module file to the
// set of pending declaration chains, so that we merge this
// declaration.
if (!ExistingCanon->isFromASTFile() &&
Reader.PendingDeclChainsKnown.insert(Redecl.getFirstID()))
Reader.PendingDeclChains.push_back(Merged[0]);
}
}
}
}
}
void ASTDeclReader::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
VisitDecl(D);
unsigned NumVars = D->varlist_size();
SmallVector<Expr *, 16> Vars;
Vars.reserve(NumVars);
for (unsigned i = 0; i != NumVars; ++i) {
Vars.push_back(Reader.ReadExpr(F));
}
D->setVars(Vars);
}
//===----------------------------------------------------------------------===//
// Attribute Reading
//===----------------------------------------------------------------------===//
/// \brief Reads attributes from the current stream position.
void ASTReader::ReadAttributes(ModuleFile &F, AttrVec &Attrs,
const RecordData &Record, unsigned &Idx) {
for (unsigned i = 0, e = Record[Idx++]; i != e; ++i) {
Attr *New = 0;
attr::Kind Kind = (attr::Kind)Record[Idx++];
SourceRange Range = ReadSourceRange(F, Record, Idx);
#include "clang/Serialization/AttrPCHRead.inc"
assert(New && "Unable to decode attribute?");
Attrs.push_back(New);
}
}
//===----------------------------------------------------------------------===//
// ASTReader Implementation
//===----------------------------------------------------------------------===//
/// \brief Note that we have loaded the declaration with the given
/// Index.
///
/// This routine notes that this declaration has already been loaded,
/// so that future GetDecl calls will return this declaration rather
/// than trying to load a new declaration.
inline void ASTReader::LoadedDecl(unsigned Index, Decl *D) {
assert(!DeclsLoaded[Index] && "Decl loaded twice?");
DeclsLoaded[Index] = D;
}
/// \brief Determine whether the consumer will be interested in seeing
/// this declaration (via HandleTopLevelDecl).
///
/// This routine should return true for anything that might affect
/// code generation, e.g., inline function definitions, Objective-C
/// declarations with metadata, etc.
static bool isConsumerInterestedIn(Decl *D, bool HasBody) {
// An ObjCMethodDecl is never considered as "interesting" because its
// implementation container always is.
if (isa<FileScopeAsmDecl>(D) ||
isa<ObjCProtocolDecl>(D) ||
isa<ObjCImplDecl>(D))
return true;
if (VarDecl *Var = dyn_cast<VarDecl>(D))
return Var->isFileVarDecl() &&
Var->isThisDeclarationADefinition() == VarDecl::Definition;
if (FunctionDecl *Func = dyn_cast<FunctionDecl>(D))
return Func->doesThisDeclarationHaveABody() || HasBody;
return false;
}
/// \brief Get the correct cursor and offset for loading a declaration.
ASTReader::RecordLocation
ASTReader::DeclCursorForID(DeclID ID, unsigned &RawLocation) {
// See if there's an override.
DeclReplacementMap::iterator It = ReplacedDecls.find(ID);
if (It != ReplacedDecls.end()) {
RawLocation = It->second.RawLoc;
return RecordLocation(It->second.Mod, It->second.Offset);
}
GlobalDeclMapType::iterator I = GlobalDeclMap.find(ID);
assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
ModuleFile *M = I->second;
const DeclOffset &
DOffs = M->DeclOffsets[ID - M->BaseDeclID - NUM_PREDEF_DECL_IDS];
RawLocation = DOffs.Loc;
return RecordLocation(M, DOffs.BitOffset);
}
ASTReader::RecordLocation ASTReader::getLocalBitOffset(uint64_t GlobalOffset) {
ContinuousRangeMap<uint64_t, ModuleFile*, 4>::iterator I
= GlobalBitOffsetsMap.find(GlobalOffset);
assert(I != GlobalBitOffsetsMap.end() && "Corrupted global bit offsets map");
return RecordLocation(I->second, GlobalOffset - I->second->GlobalBitOffset);
}
uint64_t ASTReader::getGlobalBitOffset(ModuleFile &M, uint32_t LocalOffset) {
return LocalOffset + M.GlobalBitOffset;
}
static bool isSameTemplateParameterList(const TemplateParameterList *X,
const TemplateParameterList *Y);
/// \brief Determine whether two template parameters are similar enough
/// that they may be used in declarations of the same template.
static bool isSameTemplateParameter(const NamedDecl *X,
const NamedDecl *Y) {
if (X->getKind() != Y->getKind())
return false;
if (const TemplateTypeParmDecl *TX = dyn_cast<TemplateTypeParmDecl>(X)) {
const TemplateTypeParmDecl *TY = cast<TemplateTypeParmDecl>(Y);
return TX->isParameterPack() == TY->isParameterPack();
}
if (const NonTypeTemplateParmDecl *TX = dyn_cast<NonTypeTemplateParmDecl>(X)) {
const NonTypeTemplateParmDecl *TY = cast<NonTypeTemplateParmDecl>(Y);
return TX->isParameterPack() == TY->isParameterPack() &&
TX->getASTContext().hasSameType(TX->getType(), TY->getType());
}
const TemplateTemplateParmDecl *TX = cast<TemplateTemplateParmDecl>(X);
const TemplateTemplateParmDecl *TY = cast<TemplateTemplateParmDecl>(Y);
return TX->isParameterPack() == TY->isParameterPack() &&
isSameTemplateParameterList(TX->getTemplateParameters(),
TY->getTemplateParameters());
}
/// \brief Determine whether two template parameter lists are similar enough
/// that they may be used in declarations of the same template.
static bool isSameTemplateParameterList(const TemplateParameterList *X,
const TemplateParameterList *Y) {
if (X->size() != Y->size())
return false;
for (unsigned I = 0, N = X->size(); I != N; ++I)
if (!isSameTemplateParameter(X->getParam(I), Y->getParam(I)))
return false;
return true;
}
/// \brief Determine whether the two declarations refer to the same entity.
static bool isSameEntity(NamedDecl *X, NamedDecl *Y) {
assert(X->getDeclName() == Y->getDeclName() && "Declaration name mismatch!");
if (X == Y)
return true;
// Must be in the same context.
if (!X->getDeclContext()->getRedeclContext()->Equals(
Y->getDeclContext()->getRedeclContext()))
return false;
// Two typedefs refer to the same entity if they have the same underlying
// type.
if (TypedefNameDecl *TypedefX = dyn_cast<TypedefNameDecl>(X))
if (TypedefNameDecl *TypedefY = dyn_cast<TypedefNameDecl>(Y))
return X->getASTContext().hasSameType(TypedefX->getUnderlyingType(),
TypedefY->getUnderlyingType());
// Must have the same kind.
if (X->getKind() != Y->getKind())
return false;
// Objective-C classes and protocols with the same name always match.
if (isa<ObjCInterfaceDecl>(X) || isa<ObjCProtocolDecl>(X))
return true;
if (isa<ClassTemplateSpecializationDecl>(X)) {
// FIXME: Deal with merging of template specializations.
// For now, don't merge these; we need to check more than just the name to
// determine if they refer to the same entity.
return false;
}
// Compatible tags match.
if (TagDecl *TagX = dyn_cast<TagDecl>(X)) {
TagDecl *TagY = cast<TagDecl>(Y);
return (TagX->getTagKind() == TagY->getTagKind()) ||
((TagX->getTagKind() == TTK_Struct || TagX->getTagKind() == TTK_Class ||
TagX->getTagKind() == TTK_Interface) &&
(TagY->getTagKind() == TTK_Struct || TagY->getTagKind() == TTK_Class ||
TagY->getTagKind() == TTK_Interface));
}
// Functions with the same type and linkage match.
// FIXME: This needs to cope with function template specializations,
// merging of prototyped/non-prototyped functions, etc.
if (FunctionDecl *FuncX = dyn_cast<FunctionDecl>(X)) {
FunctionDecl *FuncY = cast<FunctionDecl>(Y);
return (FuncX->getLinkageInternal() == FuncY->getLinkageInternal()) &&
FuncX->getASTContext().hasSameType(FuncX->getType(), FuncY->getType());
}
// Variables with the same type and linkage match.
if (VarDecl *VarX = dyn_cast<VarDecl>(X)) {
VarDecl *VarY = cast<VarDecl>(Y);
return (VarX->getLinkageInternal() == VarY->getLinkageInternal()) &&
VarX->getASTContext().hasSameType(VarX->getType(), VarY->getType());
}
// Namespaces with the same name and inlinedness match.
if (NamespaceDecl *NamespaceX = dyn_cast<NamespaceDecl>(X)) {
NamespaceDecl *NamespaceY = cast<NamespaceDecl>(Y);
return NamespaceX->isInline() == NamespaceY->isInline();
}
// Identical template names and kinds match if their template parameter lists
// and patterns match.
if (TemplateDecl *TemplateX = dyn_cast<TemplateDecl>(X)) {
TemplateDecl *TemplateY = cast<TemplateDecl>(Y);
return isSameEntity(TemplateX->getTemplatedDecl(),
TemplateY->getTemplatedDecl()) &&
isSameTemplateParameterList(TemplateX->getTemplateParameters(),
TemplateY->getTemplateParameters());
}
// FIXME: Many other cases to implement.
return false;
}
ASTDeclReader::FindExistingResult::~FindExistingResult() {
if (!AddResult || Existing)
return;
DeclContext *DC = New->getDeclContext()->getRedeclContext();
if (DC->isTranslationUnit() && Reader.SemaObj) {
Reader.SemaObj->IdResolver.tryAddTopLevelDecl(New, New->getDeclName());
} else if (NamespaceDecl *NS = dyn_cast<NamespaceDecl>(DC)) {
// Add the declaration to its redeclaration context so later merging
// lookups will find it.
NS->getFirstDeclaration()->makeDeclVisibleInContextImpl(New,
/*Internal*/true);
}
}
ASTDeclReader::FindExistingResult ASTDeclReader::findExisting(NamedDecl *D) {
DeclarationName Name = D->getDeclName();
if (!Name) {
// Don't bother trying to find unnamed declarations.
FindExistingResult Result(Reader, D, /*Existing=*/0);
Result.suppress();
return Result;
}
DeclContext *DC = D->getDeclContext()->getRedeclContext();
if (!DC->isFileContext())
return FindExistingResult(Reader);
if (DC->isTranslationUnit() && Reader.SemaObj) {
IdentifierResolver &IdResolver = Reader.SemaObj->IdResolver;
// Temporarily consider the identifier to be up-to-date. We don't want to
// cause additional lookups here.
class UpToDateIdentifierRAII {
IdentifierInfo *II;
bool WasOutToDate;
public:
explicit UpToDateIdentifierRAII(IdentifierInfo *II)
: II(II), WasOutToDate(false)
{
if (II) {
WasOutToDate = II->isOutOfDate();
if (WasOutToDate)
II->setOutOfDate(false);
}
}
~UpToDateIdentifierRAII() {
if (WasOutToDate)
II->setOutOfDate(true);
}
} UpToDate(Name.getAsIdentifierInfo());
for (IdentifierResolver::iterator I = IdResolver.begin(Name),
IEnd = IdResolver.end();
I != IEnd; ++I) {
if (isSameEntity(*I, D))
return FindExistingResult(Reader, D, *I);
}
} else if (NamespaceDecl *NS = dyn_cast<NamespaceDecl>(DC)) {
DeclContext::lookup_result R = NS->getFirstDeclaration()->noload_lookup(Name);
for (DeclContext::lookup_iterator I = R.begin(), E = R.end(); I != E; ++I) {
if (isSameEntity(*I, D))
return FindExistingResult(Reader, D, *I);
}
}
return FindExistingResult(Reader, D, /*Existing=*/0);
}
void ASTDeclReader::attachPreviousDecl(Decl *D, Decl *previous) {
assert(D && previous);
if (TagDecl *TD = dyn_cast<TagDecl>(D)) {
TD->RedeclLink.setNext(cast<TagDecl>(previous));
} else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
FD->RedeclLink.setNext(cast<FunctionDecl>(previous));
} else if (VarDecl *VD = dyn_cast<VarDecl>(D)) {
VD->RedeclLink.setNext(cast<VarDecl>(previous));
} else if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) {
TD->RedeclLink.setNext(cast<TypedefNameDecl>(previous));
} else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) {
ID->RedeclLink.setNext(cast<ObjCInterfaceDecl>(previous));
} else if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D)) {
PD->RedeclLink.setNext(cast<ObjCProtocolDecl>(previous));
} else if (NamespaceDecl *ND = dyn_cast<NamespaceDecl>(D)) {
ND->RedeclLink.setNext(cast<NamespaceDecl>(previous));
} else {
RedeclarableTemplateDecl *TD = cast<RedeclarableTemplateDecl>(D);
TD->RedeclLink.setNext(cast<RedeclarableTemplateDecl>(previous));
}
// If the declaration was visible in one module, a redeclaration of it in
// another module remains visible even if it wouldn't be visible by itself.
//
// FIXME: In this case, the declaration should only be visible if a module
// that makes it visible has been imported.
// FIXME: This is not correct in the case where previous is a local extern
// declaration and D is a friend declaraton.
D->IdentifierNamespace |=
previous->IdentifierNamespace &
(Decl::IDNS_Ordinary | Decl::IDNS_Tag | Decl::IDNS_Type);
}
void ASTDeclReader::attachLatestDecl(Decl *D, Decl *Latest) {
assert(D && Latest);
if (TagDecl *TD = dyn_cast<TagDecl>(D)) {
TD->RedeclLink
= Redeclarable<TagDecl>::LatestDeclLink(cast<TagDecl>(Latest));
} else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
FD->RedeclLink
= Redeclarable<FunctionDecl>::LatestDeclLink(cast<FunctionDecl>(Latest));
} else if (VarDecl *VD = dyn_cast<VarDecl>(D)) {
VD->RedeclLink
= Redeclarable<VarDecl>::LatestDeclLink(cast<VarDecl>(Latest));
} else if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) {
TD->RedeclLink
= Redeclarable<TypedefNameDecl>::LatestDeclLink(
cast<TypedefNameDecl>(Latest));
} else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) {
ID->RedeclLink
= Redeclarable<ObjCInterfaceDecl>::LatestDeclLink(
cast<ObjCInterfaceDecl>(Latest));
} else if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D)) {
PD->RedeclLink
= Redeclarable<ObjCProtocolDecl>::LatestDeclLink(
cast<ObjCProtocolDecl>(Latest));
} else if (NamespaceDecl *ND = dyn_cast<NamespaceDecl>(D)) {
ND->RedeclLink
= Redeclarable<NamespaceDecl>::LatestDeclLink(
cast<NamespaceDecl>(Latest));
} else {
RedeclarableTemplateDecl *TD = cast<RedeclarableTemplateDecl>(D);
TD->RedeclLink
= Redeclarable<RedeclarableTemplateDecl>::LatestDeclLink(
cast<RedeclarableTemplateDecl>(Latest));
}
}
ASTReader::MergedDeclsMap::iterator
ASTReader::combineStoredMergedDecls(Decl *Canon, GlobalDeclID CanonID) {
// If we don't have any stored merged declarations, just look in the
// merged declarations set.
StoredMergedDeclsMap::iterator StoredPos = StoredMergedDecls.find(CanonID);
if (StoredPos == StoredMergedDecls.end())
return MergedDecls.find(Canon);
// Append the stored merged declarations to the merged declarations set.
MergedDeclsMap::iterator Pos = MergedDecls.find(Canon);
if (Pos == MergedDecls.end())
Pos = MergedDecls.insert(std::make_pair(Canon,
SmallVector<DeclID, 2>())).first;
Pos->second.append(StoredPos->second.begin(), StoredPos->second.end());
StoredMergedDecls.erase(StoredPos);
// Sort and uniquify the set of merged declarations.
llvm::array_pod_sort(Pos->second.begin(), Pos->second.end());
Pos->second.erase(std::unique(Pos->second.begin(), Pos->second.end()),
Pos->second.end());
return Pos;
}
/// \brief Read the declaration at the given offset from the AST file.
Decl *ASTReader::ReadDeclRecord(DeclID ID) {
unsigned Index = ID - NUM_PREDEF_DECL_IDS;
unsigned RawLocation = 0;
RecordLocation Loc = DeclCursorForID(ID, RawLocation);
llvm::BitstreamCursor &DeclsCursor = Loc.F->DeclsCursor;
// Keep track of where we are in the stream, then jump back there
// after reading this declaration.
SavedStreamPosition SavedPosition(DeclsCursor);
ReadingKindTracker ReadingKind(Read_Decl, *this);
// Note that we are loading a declaration record.
Deserializing ADecl(this);
DeclsCursor.JumpToBit(Loc.Offset);
RecordData Record;
unsigned Code = DeclsCursor.ReadCode();
unsigned Idx = 0;
ASTDeclReader Reader(*this, *Loc.F, ID, RawLocation, Record,Idx);
Decl *D = 0;
switch ((DeclCode)DeclsCursor.readRecord(Code, Record)) {
case DECL_CONTEXT_LEXICAL:
case DECL_CONTEXT_VISIBLE:
llvm_unreachable("Record cannot be de-serialized with ReadDeclRecord");
case DECL_TYPEDEF:
D = TypedefDecl::CreateDeserialized(Context, ID);
break;
case DECL_TYPEALIAS:
D = TypeAliasDecl::CreateDeserialized(Context, ID);
break;
case DECL_ENUM:
D = EnumDecl::CreateDeserialized(Context, ID);
break;
case DECL_RECORD:
D = RecordDecl::CreateDeserialized(Context, ID);
break;
case DECL_ENUM_CONSTANT:
D = EnumConstantDecl::CreateDeserialized(Context, ID);
break;
case DECL_FUNCTION:
D = FunctionDecl::CreateDeserialized(Context, ID);
break;
case DECL_LINKAGE_SPEC:
D = LinkageSpecDecl::CreateDeserialized(Context, ID);
break;
case DECL_LABEL:
D = LabelDecl::CreateDeserialized(Context, ID);
break;
case DECL_NAMESPACE:
D = NamespaceDecl::CreateDeserialized(Context, ID);
break;
case DECL_NAMESPACE_ALIAS:
D = NamespaceAliasDecl::CreateDeserialized(Context, ID);
break;
case DECL_USING:
D = UsingDecl::CreateDeserialized(Context, ID);
break;
case DECL_USING_SHADOW:
D = UsingShadowDecl::CreateDeserialized(Context, ID);
break;
case DECL_USING_DIRECTIVE:
D = UsingDirectiveDecl::CreateDeserialized(Context, ID);
break;
case DECL_UNRESOLVED_USING_VALUE:
D = UnresolvedUsingValueDecl::CreateDeserialized(Context, ID);
break;
case DECL_UNRESOLVED_USING_TYPENAME:
D = UnresolvedUsingTypenameDecl::CreateDeserialized(Context, ID);
break;
case DECL_CXX_RECORD:
D = CXXRecordDecl::CreateDeserialized(Context, ID);
break;
case DECL_CXX_METHOD:
D = CXXMethodDecl::CreateDeserialized(Context, ID);
break;
case DECL_CXX_CONSTRUCTOR:
D = CXXConstructorDecl::CreateDeserialized(Context, ID);
break;
case DECL_CXX_DESTRUCTOR:
D = CXXDestructorDecl::CreateDeserialized(Context, ID);
break;
case DECL_CXX_CONVERSION:
D = CXXConversionDecl::CreateDeserialized(Context, ID);
break;
case DECL_ACCESS_SPEC:
D = AccessSpecDecl::CreateDeserialized(Context, ID);
break;
case DECL_FRIEND:
D = FriendDecl::CreateDeserialized(Context, ID, Record[Idx++]);
break;
case DECL_FRIEND_TEMPLATE:
D = FriendTemplateDecl::CreateDeserialized(Context, ID);
break;
case DECL_CLASS_TEMPLATE:
D = ClassTemplateDecl::CreateDeserialized(Context, ID);
break;
case DECL_CLASS_TEMPLATE_SPECIALIZATION:
D = ClassTemplateSpecializationDecl::CreateDeserialized(Context, ID);
break;
case DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION:
D = ClassTemplatePartialSpecializationDecl::CreateDeserialized(Context, ID);
break;
case DECL_VAR_TEMPLATE:
D = VarTemplateDecl::CreateDeserialized(Context, ID);
break;
case DECL_VAR_TEMPLATE_SPECIALIZATION:
D = VarTemplateSpecializationDecl::CreateDeserialized(Context, ID);
break;
case DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION:
D = VarTemplatePartialSpecializationDecl::CreateDeserialized(Context, ID);
break;
case DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION:
D = ClassScopeFunctionSpecializationDecl::CreateDeserialized(Context, ID);
break;
case DECL_FUNCTION_TEMPLATE:
D = FunctionTemplateDecl::CreateDeserialized(Context, ID);
break;
case DECL_TEMPLATE_TYPE_PARM:
D = TemplateTypeParmDecl::CreateDeserialized(Context, ID);
break;
case DECL_NON_TYPE_TEMPLATE_PARM:
D = NonTypeTemplateParmDecl::CreateDeserialized(Context, ID);
break;
case DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK:
D = NonTypeTemplateParmDecl::CreateDeserialized(Context, ID, Record[Idx++]);
break;
case DECL_TEMPLATE_TEMPLATE_PARM:
D = TemplateTemplateParmDecl::CreateDeserialized(Context, ID);
break;
case DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK:
D = TemplateTemplateParmDecl::CreateDeserialized(Context, ID,
Record[Idx++]);
break;
case DECL_TYPE_ALIAS_TEMPLATE:
D = TypeAliasTemplateDecl::CreateDeserialized(Context, ID);
break;
case DECL_STATIC_ASSERT:
D = StaticAssertDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_METHOD:
D = ObjCMethodDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_INTERFACE:
D = ObjCInterfaceDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_IVAR:
D = ObjCIvarDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_PROTOCOL:
D = ObjCProtocolDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_AT_DEFS_FIELD:
D = ObjCAtDefsFieldDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_CATEGORY:
D = ObjCCategoryDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_CATEGORY_IMPL:
D = ObjCCategoryImplDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_IMPLEMENTATION:
D = ObjCImplementationDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_COMPATIBLE_ALIAS:
D = ObjCCompatibleAliasDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_PROPERTY:
D = ObjCPropertyDecl::CreateDeserialized(Context, ID);
break;
case DECL_OBJC_PROPERTY_IMPL:
D = ObjCPropertyImplDecl::CreateDeserialized(Context, ID);
break;
case DECL_FIELD:
D = FieldDecl::CreateDeserialized(Context, ID);
break;
case DECL_INDIRECTFIELD:
D = IndirectFieldDecl::CreateDeserialized(Context, ID);
break;
case DECL_VAR:
D = VarDecl::CreateDeserialized(Context, ID);
break;
case DECL_IMPLICIT_PARAM:
D = ImplicitParamDecl::CreateDeserialized(Context, ID);
break;
case DECL_PARM_VAR:
D = ParmVarDecl::CreateDeserialized(Context, ID);
break;
case DECL_FILE_SCOPE_ASM:
D = FileScopeAsmDecl::CreateDeserialized(Context, ID);
break;
case DECL_BLOCK:
D = BlockDecl::CreateDeserialized(Context, ID);
break;
case DECL_MS_PROPERTY:
D = MSPropertyDecl::CreateDeserialized(Context, ID);
break;
case DECL_CAPTURED:
D = CapturedDecl::CreateDeserialized(Context, ID, Record[Idx++]);
break;
case DECL_CXX_BASE_SPECIFIERS:
Error("attempt to read a C++ base-specifier record as a declaration");
return 0;
case DECL_IMPORT:
// Note: last entry of the ImportDecl record is the number of stored source
// locations.
D = ImportDecl::CreateDeserialized(Context, ID, Record.back());
break;
case DECL_OMP_THREADPRIVATE:
D = OMPThreadPrivateDecl::CreateDeserialized(Context, ID, Record[Idx++]);
break;
case DECL_EMPTY:
D = EmptyDecl::CreateDeserialized(Context, ID);
break;
}
assert(D && "Unknown declaration reading AST file");
LoadedDecl(Index, D);
// Set the DeclContext before doing any deserialization, to make sure internal
// calls to Decl::getASTContext() by Decl's methods will find the
// TranslationUnitDecl without crashing.
D->setDeclContext(Context.getTranslationUnitDecl());
Reader.Visit(D);
// If this declaration is also a declaration context, get the
// offsets for its tables of lexical and visible declarations.
if (DeclContext *DC = dyn_cast<DeclContext>(D)) {
// FIXME: This should really be
// DeclContext *LookupDC = DC->getPrimaryContext();
// but that can walk the redeclaration chain, which might not work yet.
DeclContext *LookupDC = DC;
if (isa<NamespaceDecl>(DC))
LookupDC = DC->getPrimaryContext();
std::pair<uint64_t, uint64_t> Offsets = Reader.VisitDeclContext(DC);
if (Offsets.first || Offsets.second) {
if (Offsets.first != 0)
DC->setHasExternalLexicalStorage(true);
if (Offsets.second != 0)
LookupDC->setHasExternalVisibleStorage(true);
if (ReadDeclContextStorage(*Loc.F, DeclsCursor, Offsets,
Loc.F->DeclContextInfos[DC]))
return 0;
}
// Now add the pending visible updates for this decl context, if it has any.
DeclContextVisibleUpdatesPending::iterator I =
PendingVisibleUpdates.find(ID);
if (I != PendingVisibleUpdates.end()) {
// There are updates. This means the context has external visible
// storage, even if the original stored version didn't.
LookupDC->setHasExternalVisibleStorage(true);
DeclContextVisibleUpdates &U = I->second;
for (DeclContextVisibleUpdates::iterator UI = U.begin(), UE = U.end();
UI != UE; ++UI) {
DeclContextInfo &Info = UI->second->DeclContextInfos[DC];
delete Info.NameLookupTableData;
Info.NameLookupTableData = UI->first;
}
PendingVisibleUpdates.erase(I);
}
}
assert(Idx == Record.size());
// Load any relevant update records.
loadDeclUpdateRecords(ID, D);
// Load the categories after recursive loading is finished.
if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(D))
if (Class->isThisDeclarationADefinition())
loadObjCCategories(ID, Class);
// If we have deserialized a declaration that has a definition the
// AST consumer might need to know about, queue it.
// We don't pass it to the consumer immediately because we may be in recursive
// loading, and some declarations may still be initializing.
if (isConsumerInterestedIn(D, Reader.hasPendingBody()))
InterestingDecls.push_back(D);
return D;
}
void ASTReader::loadDeclUpdateRecords(serialization::DeclID ID, Decl *D) {
// The declaration may have been modified by files later in the chain.
// If this is the case, read the record containing the updates from each file
// and pass it to ASTDeclReader to make the modifications.
DeclUpdateOffsetsMap::iterator UpdI = DeclUpdateOffsets.find(ID);
if (UpdI != DeclUpdateOffsets.end()) {
FileOffsetsTy &UpdateOffsets = UpdI->second;
for (FileOffsetsTy::iterator
I = UpdateOffsets.begin(), E = UpdateOffsets.end(); I != E; ++I) {
ModuleFile *F = I->first;
uint64_t Offset = I->second;
llvm::BitstreamCursor &Cursor = F->DeclsCursor;
SavedStreamPosition SavedPosition(Cursor);
Cursor.JumpToBit(Offset);
RecordData Record;
unsigned Code = Cursor.ReadCode();
unsigned RecCode = Cursor.readRecord(Code, Record);
(void)RecCode;
assert(RecCode == DECL_UPDATES && "Expected DECL_UPDATES record!");
unsigned Idx = 0;
ASTDeclReader Reader(*this, *F, ID, 0, Record, Idx);
Reader.UpdateDecl(D, *F, Record);
}
}
}
namespace {
struct CompareLocalRedeclarationsInfoToID {
bool operator()(const LocalRedeclarationsInfo &X, DeclID Y) {
return X.FirstID < Y;
}
bool operator()(DeclID X, const LocalRedeclarationsInfo &Y) {
return X < Y.FirstID;
}
bool operator()(const LocalRedeclarationsInfo &X,
const LocalRedeclarationsInfo &Y) {
return X.FirstID < Y.FirstID;
}
bool operator()(DeclID X, DeclID Y) {
return X < Y;
}
};
/// \brief Module visitor class that finds all of the redeclarations of a
///
class RedeclChainVisitor {
ASTReader &Reader;
SmallVectorImpl<DeclID> &SearchDecls;
llvm::SmallPtrSet<Decl *, 16> &Deserialized;
GlobalDeclID CanonID;
SmallVector<Decl *, 4> Chain;
public:
RedeclChainVisitor(ASTReader &Reader, SmallVectorImpl<DeclID> &SearchDecls,
llvm::SmallPtrSet<Decl *, 16> &Deserialized,
GlobalDeclID CanonID)
: Reader(Reader), SearchDecls(SearchDecls), Deserialized(Deserialized),
CanonID(CanonID) {
for (unsigned I = 0, N = SearchDecls.size(); I != N; ++I)
addToChain(Reader.GetDecl(SearchDecls[I]));
}
static bool visit(ModuleFile &M, bool Preorder, void *UserData) {
if (Preorder)
return false;
return static_cast<RedeclChainVisitor *>(UserData)->visit(M);
}
void addToChain(Decl *D) {
if (!D)
return;
if (Deserialized.erase(D))
Chain.push_back(D);
}
void searchForID(ModuleFile &M, GlobalDeclID GlobalID) {
// Map global ID of the first declaration down to the local ID
// used in this module file.
DeclID ID = Reader.mapGlobalIDToModuleFileGlobalID(M, GlobalID);
if (!ID)
return;
// Perform a binary search to find the local redeclarations for this
// declaration (if any).
const LocalRedeclarationsInfo *Result
= std::lower_bound(M.RedeclarationsMap,
M.RedeclarationsMap + M.LocalNumRedeclarationsInMap,
ID, CompareLocalRedeclarationsInfoToID());
if (Result == M.RedeclarationsMap + M.LocalNumRedeclarationsInMap ||
Result->FirstID != ID) {
// If we have a previously-canonical singleton declaration that was
// merged into another redeclaration chain, create a trivial chain
// for this single declaration so that it will get wired into the
// complete redeclaration chain.
if (GlobalID != CanonID &&
GlobalID - NUM_PREDEF_DECL_IDS >= M.BaseDeclID &&
GlobalID - NUM_PREDEF_DECL_IDS < M.BaseDeclID + M.LocalNumDecls) {
addToChain(Reader.GetDecl(GlobalID));
}
return;
}
// Dig out all of the redeclarations.
unsigned Offset = Result->Offset;
unsigned N = M.RedeclarationChains[Offset];
M.RedeclarationChains[Offset++] = 0; // Don't try to deserialize again
for (unsigned I = 0; I != N; ++I)
addToChain(Reader.GetLocalDecl(M, M.RedeclarationChains[Offset++]));
}
bool visit(ModuleFile &M) {
// Visit each of the declarations.
for (unsigned I = 0, N = SearchDecls.size(); I != N; ++I)
searchForID(M, SearchDecls[I]);
return false;
}
ArrayRef<Decl *> getChain() const {
return Chain;
}
};
}
void ASTReader::loadPendingDeclChain(serialization::GlobalDeclID ID) {
Decl *D = GetDecl(ID);
Decl *CanonDecl = D->getCanonicalDecl();
// Determine the set of declaration IDs we'll be searching for.
SmallVector<DeclID, 1> SearchDecls;
GlobalDeclID CanonID = 0;
if (D == CanonDecl) {
SearchDecls.push_back(ID); // Always first.
CanonID = ID;
}
MergedDeclsMap::iterator MergedPos = combineStoredMergedDecls(CanonDecl, ID);
if (MergedPos != MergedDecls.end())
SearchDecls.append(MergedPos->second.begin(), MergedPos->second.end());
// Build up the list of redeclarations.
RedeclChainVisitor Visitor(*this, SearchDecls, RedeclsDeserialized, CanonID);
ModuleMgr.visitDepthFirst(&RedeclChainVisitor::visit, &Visitor);
// Retrieve the chains.
ArrayRef<Decl *> Chain = Visitor.getChain();
if (Chain.empty())
return;
// Hook up the chains.
Decl *MostRecent = CanonDecl->getMostRecentDecl();
for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
if (Chain[I] == CanonDecl)
continue;
ASTDeclReader::attachPreviousDecl(Chain[I], MostRecent);
MostRecent = Chain[I];
}
ASTDeclReader::attachLatestDecl(CanonDecl, MostRecent);
}
namespace {
struct CompareObjCCategoriesInfo {
bool operator()(const ObjCCategoriesInfo &X, DeclID Y) {
return X.DefinitionID < Y;
}
bool operator()(DeclID X, const ObjCCategoriesInfo &Y) {
return X < Y.DefinitionID;
}
bool operator()(const ObjCCategoriesInfo &X,
const ObjCCategoriesInfo &Y) {
return X.DefinitionID < Y.DefinitionID;
}
bool operator()(DeclID X, DeclID Y) {
return X < Y;
}
};
/// \brief Given an ObjC interface, goes through the modules and links to the
/// interface all the categories for it.
class ObjCCategoriesVisitor {
ASTReader &Reader;
serialization::GlobalDeclID InterfaceID;
ObjCInterfaceDecl *Interface;
llvm::SmallPtrSet<ObjCCategoryDecl *, 16> &Deserialized;
unsigned PreviousGeneration;
ObjCCategoryDecl *Tail;
llvm::DenseMap<DeclarationName, ObjCCategoryDecl *> NameCategoryMap;
void add(ObjCCategoryDecl *Cat) {
// Only process each category once.
if (!Deserialized.erase(Cat))
return;
// Check for duplicate categories.
if (Cat->getDeclName()) {
ObjCCategoryDecl *&Existing = NameCategoryMap[Cat->getDeclName()];
if (Existing &&
Reader.getOwningModuleFile(Existing)
!= Reader.getOwningModuleFile(Cat)) {
// FIXME: We should not warn for duplicates in diamond:
//
// MT //
// / \ //
// ML MR //
// \ / //
// MB //
//
// If there are duplicates in ML/MR, there will be warning when
// creating MB *and* when importing MB. We should not warn when
// importing.
Reader.Diag(Cat->getLocation(), diag::warn_dup_category_def)
<< Interface->getDeclName() << Cat->getDeclName();
Reader.Diag(Existing->getLocation(), diag::note_previous_definition);
} else if (!Existing) {
// Record this category.
Existing = Cat;
}
}
// Add this category to the end of the chain.
if (Tail)
ASTDeclReader::setNextObjCCategory(Tail, Cat);
else
Interface->setCategoryListRaw(Cat);
Tail = Cat;
}
public:
ObjCCategoriesVisitor(ASTReader &Reader,
serialization::GlobalDeclID InterfaceID,
ObjCInterfaceDecl *Interface,
llvm::SmallPtrSet<ObjCCategoryDecl *, 16> &Deserialized,
unsigned PreviousGeneration)
: Reader(Reader), InterfaceID(InterfaceID), Interface(Interface),
Deserialized(Deserialized), PreviousGeneration(PreviousGeneration),
Tail(0)
{
// Populate the name -> category map with the set of known categories.
for (ObjCInterfaceDecl::known_categories_iterator
Cat = Interface->known_categories_begin(),
CatEnd = Interface->known_categories_end();
Cat != CatEnd; ++Cat) {
if (Cat->getDeclName())
NameCategoryMap[Cat->getDeclName()] = *Cat;
// Keep track of the tail of the category list.
Tail = *Cat;
}
}
static bool visit(ModuleFile &M, void *UserData) {
return static_cast<ObjCCategoriesVisitor *>(UserData)->visit(M);
}
bool visit(ModuleFile &M) {
// If we've loaded all of the category information we care about from
// this module file, we're done.
if (M.Generation <= PreviousGeneration)
return true;
// Map global ID of the definition down to the local ID used in this
// module file. If there is no such mapping, we'll find nothing here
// (or in any module it imports).
DeclID LocalID = Reader.mapGlobalIDToModuleFileGlobalID(M, InterfaceID);
if (!LocalID)
return true;
// Perform a binary search to find the local redeclarations for this
// declaration (if any).
const ObjCCategoriesInfo *Result
= std::lower_bound(M.ObjCCategoriesMap,
M.ObjCCategoriesMap + M.LocalNumObjCCategoriesInMap,
LocalID, CompareObjCCategoriesInfo());
if (Result == M.ObjCCategoriesMap + M.LocalNumObjCCategoriesInMap ||
Result->DefinitionID != LocalID) {
// We didn't find anything. If the class definition is in this module
// file, then the module files it depends on cannot have any categories,
// so suppress further lookup.
return Reader.isDeclIDFromModule(InterfaceID, M);
}
// We found something. Dig out all of the categories.
unsigned Offset = Result->Offset;
unsigned N = M.ObjCCategories[Offset];
M.ObjCCategories[Offset++] = 0; // Don't try to deserialize again
for (unsigned I = 0; I != N; ++I)
add(cast_or_null<ObjCCategoryDecl>(
Reader.GetLocalDecl(M, M.ObjCCategories[Offset++])));
return true;
}
};
}
void ASTReader::loadObjCCategories(serialization::GlobalDeclID ID,
ObjCInterfaceDecl *D,
unsigned PreviousGeneration) {
ObjCCategoriesVisitor Visitor(*this, ID, D, CategoriesDeserialized,
PreviousGeneration);
ModuleMgr.visit(ObjCCategoriesVisitor::visit, &Visitor);
}
void ASTDeclReader::UpdateDecl(Decl *D, ModuleFile &ModuleFile,
const RecordData &Record) {
unsigned Idx = 0;
while (Idx < Record.size()) {
switch ((DeclUpdateKind)Record[Idx++]) {
case UPD_CXX_ADDED_IMPLICIT_MEMBER:
cast<CXXRecordDecl>(D)->addedMember(Reader.ReadDecl(ModuleFile, Record, Idx));
break;
case UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION:
// It will be added to the template's specializations set when loaded.
(void)Reader.ReadDecl(ModuleFile, Record, Idx);
break;
case UPD_CXX_ADDED_ANONYMOUS_NAMESPACE: {
NamespaceDecl *Anon
= Reader.ReadDeclAs<NamespaceDecl>(ModuleFile, Record, Idx);
// Each module has its own anonymous namespace, which is disjoint from
// any other module's anonymous namespaces, so don't attach the anonymous
// namespace at all.
if (ModuleFile.Kind != MK_Module) {
if (TranslationUnitDecl *TU = dyn_cast<TranslationUnitDecl>(D))
TU->setAnonymousNamespace(Anon);
else
cast<NamespaceDecl>(D)->setAnonymousNamespace(Anon);
}
break;
}
case UPD_CXX_INSTANTIATED_STATIC_DATA_MEMBER:
cast<VarDecl>(D)->getMemberSpecializationInfo()->setPointOfInstantiation(
Reader.ReadSourceLocation(ModuleFile, Record, Idx));
break;
case UPD_CXX_DEDUCED_RETURN_TYPE: {
FunctionDecl *FD = cast<FunctionDecl>(D);
Reader.Context.adjustDeducedFunctionResultType(
FD, Reader.readType(ModuleFile, Record, Idx));
break;
}
}
}
}
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