Google Git
Sign in
llvm / clang / refs/heads/release_28 / . / lib / Serialization / ASTReaderDecl.cpp
blob: 7adbe1220ff79bd97db9a92d2486af5ba69d9cbf [file] [log] [blame]
//===--- 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 "clang/AST/ASTConsumer.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclVisitor.h"
#include "clang/AST/DeclGroup.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Expr.h"
using namespace clang;
using namespace clang::serialization;
//===----------------------------------------------------------------------===//
// Declaration deserialization
//===----------------------------------------------------------------------===//
namespace clang {
class ASTDeclReader : public DeclVisitor<ASTDeclReader, void> {
ASTReader &Reader;
llvm::BitstreamCursor &Cursor;
const DeclID ThisDeclID;
const ASTReader::RecordData &Record;
unsigned &Idx;
TypeID TypeIDForTypeDecl;
uint64_t GetCurrentCursorOffset();
public:
ASTDeclReader(ASTReader &Reader, llvm::BitstreamCursor &Cursor,
DeclID thisDeclID, const ASTReader::RecordData &Record,
unsigned &Idx)
: Reader(Reader), Cursor(Cursor), ThisDeclID(thisDeclID), Record(Record),
Idx(Idx), TypeIDForTypeDecl(0) { }
void Visit(Decl *D);
void VisitDecl(Decl *D);
void VisitTranslationUnitDecl(TranslationUnitDecl *TU);
void VisitNamedDecl(NamedDecl *ND);
void VisitNamespaceDecl(NamespaceDecl *D);
void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
void VisitTypeDecl(TypeDecl *TD);
void VisitTypedefDecl(TypedefDecl *TD);
void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D);
void VisitTagDecl(TagDecl *TD);
void VisitEnumDecl(EnumDecl *ED);
void VisitRecordDecl(RecordDecl *RD);
void VisitCXXRecordDecl(CXXRecordDecl *D);
void VisitClassTemplateSpecializationDecl(
ClassTemplateSpecializationDecl *D);
void VisitClassTemplatePartialSpecializationDecl(
ClassTemplatePartialSpecializationDecl *D);
void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
void VisitValueDecl(ValueDecl *VD);
void VisitEnumConstantDecl(EnumConstantDecl *ECD);
void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
void VisitDeclaratorDecl(DeclaratorDecl *DD);
void VisitFunctionDecl(FunctionDecl *FD);
void VisitCXXMethodDecl(CXXMethodDecl *D);
void VisitCXXConstructorDecl(CXXConstructorDecl *D);
void VisitCXXDestructorDecl(CXXDestructorDecl *D);
void VisitCXXConversionDecl(CXXConversionDecl *D);
void VisitFieldDecl(FieldDecl *FD);
void VisitVarDecl(VarDecl *VD);
void VisitImplicitParamDecl(ImplicitParamDecl *PD);
void VisitParmVarDecl(ParmVarDecl *PD);
void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
void VisitTemplateDecl(TemplateDecl *D);
void VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D);
void VisitClassTemplateDecl(ClassTemplateDecl *D);
void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
void VisitUsingDecl(UsingDecl *D);
void VisitUsingShadowDecl(UsingShadowDecl *D);
void VisitLinkageSpecDecl(LinkageSpecDecl *D);
void VisitFileScopeAsmDecl(FileScopeAsmDecl *AD);
void VisitAccessSpecDecl(AccessSpecDecl *D);
void VisitFriendDecl(FriendDecl *D);
void VisitFriendTemplateDecl(FriendTemplateDecl *D);
void VisitStaticAssertDecl(StaticAssertDecl *D);
void VisitBlockDecl(BlockDecl *BD);
std::pair<uint64_t, uint64_t> VisitDeclContext(DeclContext *DC);
template <typename T> void VisitRedeclarable(Redeclarable<T> *D);
// FIXME: Reorder according to DeclNodes.td?
void VisitObjCMethodDecl(ObjCMethodDecl *D);
void VisitObjCContainerDecl(ObjCContainerDecl *D);
void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
void VisitObjCIvarDecl(ObjCIvarDecl *D);
void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
void VisitObjCClassDecl(ObjCClassDecl *D);
void VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D);
void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
void VisitObjCImplDecl(ObjCImplDecl *D);
void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
};
}
uint64_t ASTDeclReader::GetCurrentCursorOffset() {
uint64_t Off = 0;
for (unsigned I = 0, N = Reader.Chain.size(); I != N; ++I) {
ASTReader::PerFileData &F = *Reader.Chain[N - I - 1];
if (&Cursor == &F.DeclsCursor) {
Off += F.DeclsCursor.GetCurrentBitNo();
break;
}
Off += F.SizeInBits;
}
return Off;
}
void ASTDeclReader::Visit(Decl *D) {
DeclVisitor<ASTDeclReader, void>::Visit(D);
if (TypeDecl *TD = dyn_cast<TypeDecl>(D)) {
// if we have a fully initialized TypeDecl, we can safely read its type now.
TD->setTypeForDecl(Reader.GetType(TypeIDForTypeDecl).getTypePtr());
} else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
// FunctionDecl's body was written last after all other Stmts/Exprs.
if (Record[Idx++])
FD->setLazyBody(GetCurrentCursorOffset());
}
}
void ASTDeclReader::VisitDecl(Decl *D) {
D->setDeclContext(cast_or_null<DeclContext>(Reader.GetDecl(Record[Idx++])));
D->setLexicalDeclContext(
cast_or_null<DeclContext>(Reader.GetDecl(Record[Idx++])));
D->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
D->setInvalidDecl(Record[Idx++]);
if (Record[Idx++]) {
AttrVec Attrs;
Reader.ReadAttributes(Cursor, Attrs);
D->setAttrs(Attrs);
}
D->setImplicit(Record[Idx++]);
D->setUsed(Record[Idx++]);
D->setAccess((AccessSpecifier)Record[Idx++]);
D->setPCHLevel(Record[Idx++] + 1);
}
void ASTDeclReader::VisitTranslationUnitDecl(TranslationUnitDecl *TU) {
VisitDecl(TU);
TU->setAnonymousNamespace(
cast_or_null<NamespaceDecl>(Reader.GetDecl(Record[Idx++])));
}
void ASTDeclReader::VisitNamedDecl(NamedDecl *ND) {
VisitDecl(ND);
ND->setDeclName(Reader.ReadDeclarationName(Record, Idx));
}
void ASTDeclReader::VisitTypeDecl(TypeDecl *TD) {
VisitNamedDecl(TD);
// Delay type reading until after we have fully initialized the decl.
TypeIDForTypeDecl = Record[Idx++];
}
void ASTDeclReader::VisitTypedefDecl(TypedefDecl *TD) {
VisitTypeDecl(TD);
TD->setTypeSourceInfo(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
}
void ASTDeclReader::VisitTagDecl(TagDecl *TD) {
VisitTypeDecl(TD);
TD->IdentifierNamespace = Record[Idx++];
VisitRedeclarable(TD);
TD->setTagKind((TagDecl::TagKind)Record[Idx++]);
TD->setDefinition(Record[Idx++]);
TD->setEmbeddedInDeclarator(Record[Idx++]);
TD->setRBraceLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
TD->setTagKeywordLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
// FIXME: maybe read optional qualifier and its range.
TD->setTypedefForAnonDecl(
cast_or_null<TypedefDecl>(Reader.GetDecl(Record[Idx++])));
}
void ASTDeclReader::VisitEnumDecl(EnumDecl *ED) {
VisitTagDecl(ED);
ED->setIntegerType(Reader.GetType(Record[Idx++]));
ED->setPromotionType(Reader.GetType(Record[Idx++]));
ED->setNumPositiveBits(Record[Idx++]);
ED->setNumNegativeBits(Record[Idx++]);
ED->setInstantiationOfMemberEnum(
cast_or_null<EnumDecl>(Reader.GetDecl(Record[Idx++])));
}
void ASTDeclReader::VisitRecordDecl(RecordDecl *RD) {
VisitTagDecl(RD);
RD->setHasFlexibleArrayMember(Record[Idx++]);
RD->setAnonymousStructOrUnion(Record[Idx++]);
RD->setHasObjectMember(Record[Idx++]);
}
void ASTDeclReader::VisitValueDecl(ValueDecl *VD) {
VisitNamedDecl(VD);
VD->setType(Reader.GetType(Record[Idx++]));
}
void ASTDeclReader::VisitEnumConstantDecl(EnumConstantDecl *ECD) {
VisitValueDecl(ECD);
if (Record[Idx++])
ECD->setInitExpr(Reader.ReadExpr(Cursor));
ECD->setInitVal(Reader.ReadAPSInt(Record, Idx));
}
void ASTDeclReader::VisitDeclaratorDecl(DeclaratorDecl *DD) {
VisitValueDecl(DD);
TypeSourceInfo *TInfo = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
if (TInfo)
DD->setTypeSourceInfo(TInfo);
// FIXME: read optional qualifier and its range.
}
void ASTDeclReader::VisitFunctionDecl(FunctionDecl *FD) {
VisitDeclaratorDecl(FD);
// FIXME: read DeclarationNameLoc.
FD->IdentifierNamespace = Record[Idx++];
switch ((FunctionDecl::TemplatedKind)Record[Idx++]) {
default: assert(false && "Unhandled TemplatedKind!");
break;
case FunctionDecl::TK_NonTemplate:
break;
case FunctionDecl::TK_FunctionTemplate:
FD->setDescribedFunctionTemplate(
cast<FunctionTemplateDecl>(Reader.GetDecl(Record[Idx++])));
break;
case FunctionDecl::TK_MemberSpecialization: {
FunctionDecl *InstFD = cast<FunctionDecl>(Reader.GetDecl(Record[Idx++]));
TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
FD->setInstantiationOfMemberFunction(InstFD, TSK);
FD->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
break;
}
case FunctionDecl::TK_FunctionTemplateSpecialization: {
FunctionTemplateDecl *Template
= cast<FunctionTemplateDecl>(Reader.GetDecl(Record[Idx++]));
TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
// Template arguments.
llvm::SmallVector<TemplateArgument, 8> TemplArgs;
Reader.ReadTemplateArgumentList(TemplArgs, Cursor, Record, Idx);
// Template args as written.
llvm::SmallVector<TemplateArgumentLoc, 8> TemplArgLocs;
SourceLocation LAngleLoc, RAngleLoc;
if (Record[Idx++]) { // TemplateArgumentsAsWritten != 0
unsigned NumTemplateArgLocs = Record[Idx++];
TemplArgLocs.reserve(NumTemplateArgLocs);
for (unsigned i=0; i != NumTemplateArgLocs; ++i)
TemplArgLocs.push_back(
Reader.ReadTemplateArgumentLoc(Cursor, Record, Idx));
LAngleLoc = Reader.ReadSourceLocation(Record, Idx);
RAngleLoc = Reader.ReadSourceLocation(Record, Idx);
}
SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
if (FD->isCanonicalDecl()) // if canonical add to template's set.
FD->setFunctionTemplateSpecialization(Template, TemplArgs.size(),
TemplArgs.data(), TSK,
TemplArgLocs.size(),
TemplArgLocs.data(),
LAngleLoc, RAngleLoc, POI);
break;
}
case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
// Templates.
UnresolvedSet<8> TemplDecls;
unsigned NumTemplates = Record[Idx++];
while (NumTemplates--)
TemplDecls.addDecl(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
// Templates args.
TemplateArgumentListInfo TemplArgs;
unsigned NumArgs = Record[Idx++];
while (NumArgs--)
TemplArgs.addArgument(Reader.ReadTemplateArgumentLoc(Cursor,Record, Idx));
TemplArgs.setLAngleLoc(Reader.ReadSourceLocation(Record, Idx));
TemplArgs.setRAngleLoc(Reader.ReadSourceLocation(Record, Idx));
FD->setDependentTemplateSpecialization(*Reader.getContext(),
TemplDecls, TemplArgs);
break;
}
}
// FunctionDecl's body is handled last at ASTDeclReader::Visit,
// after everything else is read.
VisitRedeclarable(FD);
FD->setStorageClass((StorageClass)Record[Idx++]);
FD->setStorageClassAsWritten((StorageClass)Record[Idx++]);
FD->setInlineSpecified(Record[Idx++]);
FD->setVirtualAsWritten(Record[Idx++]);
FD->setPure(Record[Idx++]);
FD->setHasInheritedPrototype(Record[Idx++]);
FD->setHasWrittenPrototype(Record[Idx++]);
FD->setDeleted(Record[Idx++]);
FD->setTrivial(Record[Idx++]);
FD->setCopyAssignment(Record[Idx++]);
FD->setHasImplicitReturnZero(Record[Idx++]);
FD->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
// Read in the parameters.
unsigned NumParams = Record[Idx++];
llvm::SmallVector<ParmVarDecl *, 16> Params;
Params.reserve(NumParams);
for (unsigned I = 0; I != NumParams; ++I)
Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
FD->setParams(Params.data(), NumParams);
}
void ASTDeclReader::VisitObjCMethodDecl(ObjCMethodDecl *MD) {
VisitNamedDecl(MD);
if (Record[Idx++]) {
// In practice, this won't be executed (since method definitions
// don't occur in header files).
MD->setBody(Reader.ReadStmt(Cursor));
MD->setSelfDecl(cast<ImplicitParamDecl>(Reader.GetDecl(Record[Idx++])));
MD->setCmdDecl(cast<ImplicitParamDecl>(Reader.GetDecl(Record[Idx++])));
}
MD->setInstanceMethod(Record[Idx++]);
MD->setVariadic(Record[Idx++]);
MD->setSynthesized(Record[Idx++]);
MD->setDefined(Record[Idx++]);
MD->setDeclImplementation((ObjCMethodDecl::ImplementationControl)Record[Idx++]);
MD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
MD->setNumSelectorArgs(unsigned(Record[Idx++]));
MD->setResultType(Reader.GetType(Record[Idx++]));
MD->setResultTypeSourceInfo(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
MD->setEndLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
unsigned NumParams = Record[Idx++];
llvm::SmallVector<ParmVarDecl *, 16> Params;
Params.reserve(NumParams);
for (unsigned I = 0; I != NumParams; ++I)
Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
MD->setMethodParams(*Reader.getContext(), Params.data(), NumParams,
NumParams);
}
void ASTDeclReader::VisitObjCContainerDecl(ObjCContainerDecl *CD) {
VisitNamedDecl(CD);
SourceLocation A = SourceLocation::getFromRawEncoding(Record[Idx++]);
SourceLocation B = SourceLocation::getFromRawEncoding(Record[Idx++]);
CD->setAtEndRange(SourceRange(A, B));
}
void ASTDeclReader::VisitObjCInterfaceDecl(ObjCInterfaceDecl *ID) {
VisitObjCContainerDecl(ID);
ID->setTypeForDecl(Reader.GetType(Record[Idx++]).getTypePtr());
ID->setSuperClass(cast_or_null<ObjCInterfaceDecl>
(Reader.GetDecl(Record[Idx++])));
// Read the directly referenced protocols and their SourceLocations.
unsigned NumProtocols = Record[Idx++];
llvm::SmallVector<ObjCProtocolDecl *, 16> Protocols;
Protocols.reserve(NumProtocols);
for (unsigned I = 0; I != NumProtocols; ++I)
Protocols.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
llvm::SmallVector<SourceLocation, 16> ProtoLocs;
ProtoLocs.reserve(NumProtocols);
for (unsigned I = 0; I != NumProtocols; ++I)
ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
ID->setProtocolList(Protocols.data(), NumProtocols, ProtoLocs.data(),
*Reader.getContext());
// 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(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
ID->AllReferencedProtocols.set(Protocols.data(), NumProtocols,
*Reader.getContext());
// Read the ivars.
unsigned NumIvars = Record[Idx++];
llvm::SmallVector<ObjCIvarDecl *, 16> IVars;
IVars.reserve(NumIvars);
for (unsigned I = 0; I != NumIvars; ++I)
IVars.push_back(cast<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
ID->setCategoryList(
cast_or_null<ObjCCategoryDecl>(Reader.GetDecl(Record[Idx++])));
// We will rebuild this list lazily.
ID->setIvarList(0);
ID->setForwardDecl(Record[Idx++]);
ID->setImplicitInterfaceDecl(Record[Idx++]);
ID->setClassLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
ID->setSuperClassLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
ID->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
}
void 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) {
VisitObjCContainerDecl(PD);
PD->setForwardDecl(Record[Idx++]);
PD->setLocEnd(SourceLocation::getFromRawEncoding(Record[Idx++]));
unsigned NumProtoRefs = Record[Idx++];
llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
ProtoRefs.reserve(NumProtoRefs);
for (unsigned I = 0; I != NumProtoRefs; ++I)
ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
llvm::SmallVector<SourceLocation, 16> ProtoLocs;
ProtoLocs.reserve(NumProtoRefs);
for (unsigned I = 0; I != NumProtoRefs; ++I)
ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
PD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
*Reader.getContext());
}
void ASTDeclReader::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *FD) {
VisitFieldDecl(FD);
}
void ASTDeclReader::VisitObjCClassDecl(ObjCClassDecl *CD) {
VisitDecl(CD);
unsigned NumClassRefs = Record[Idx++];
llvm::SmallVector<ObjCInterfaceDecl *, 16> ClassRefs;
ClassRefs.reserve(NumClassRefs);
for (unsigned I = 0; I != NumClassRefs; ++I)
ClassRefs.push_back(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
llvm::SmallVector<SourceLocation, 16> SLocs;
SLocs.reserve(NumClassRefs);
for (unsigned I = 0; I != NumClassRefs; ++I)
SLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
CD->setClassList(*Reader.getContext(), ClassRefs.data(), SLocs.data(),
NumClassRefs);
}
void ASTDeclReader::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *FPD) {
VisitDecl(FPD);
unsigned NumProtoRefs = Record[Idx++];
llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
ProtoRefs.reserve(NumProtoRefs);
for (unsigned I = 0; I != NumProtoRefs; ++I)
ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
llvm::SmallVector<SourceLocation, 16> ProtoLocs;
ProtoLocs.reserve(NumProtoRefs);
for (unsigned I = 0; I != NumProtoRefs; ++I)
ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
FPD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
*Reader.getContext());
}
void ASTDeclReader::VisitObjCCategoryDecl(ObjCCategoryDecl *CD) {
VisitObjCContainerDecl(CD);
CD->setClassInterface(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
unsigned NumProtoRefs = Record[Idx++];
llvm::SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
ProtoRefs.reserve(NumProtoRefs);
for (unsigned I = 0; I != NumProtoRefs; ++I)
ProtoRefs.push_back(cast<ObjCProtocolDecl>(Reader.GetDecl(Record[Idx++])));
llvm::SmallVector<SourceLocation, 16> ProtoLocs;
ProtoLocs.reserve(NumProtoRefs);
for (unsigned I = 0; I != NumProtoRefs; ++I)
ProtoLocs.push_back(SourceLocation::getFromRawEncoding(Record[Idx++]));
CD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
*Reader.getContext());
CD->setNextClassCategory(cast_or_null<ObjCCategoryDecl>(Reader.GetDecl(Record[Idx++])));
CD->setHasSynthBitfield(Record[Idx++]);
CD->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
CD->setCategoryNameLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
}
void ASTDeclReader::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *CAD) {
VisitNamedDecl(CAD);
CAD->setClassInterface(cast<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
}
void ASTDeclReader::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
VisitNamedDecl(D);
D->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
D->setType(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
// FIXME: stable encoding
D->setPropertyAttributes(
(ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]);
D->setPropertyAttributesAsWritten(
(ObjCPropertyDecl::PropertyAttributeKind)Record[Idx++]);
// FIXME: stable encoding
D->setPropertyImplementation(
(ObjCPropertyDecl::PropertyControl)Record[Idx++]);
D->setGetterName(Reader.ReadDeclarationName(Record, Idx).getObjCSelector());
D->setSetterName(Reader.ReadDeclarationName(Record, Idx).getObjCSelector());
D->setGetterMethodDecl(
cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
D->setSetterMethodDecl(
cast_or_null<ObjCMethodDecl>(Reader.GetDecl(Record[Idx++])));
D->setPropertyIvarDecl(
cast_or_null<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
}
void ASTDeclReader::VisitObjCImplDecl(ObjCImplDecl *D) {
VisitObjCContainerDecl(D);
D->setClassInterface(
cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
}
void ASTDeclReader::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
VisitObjCImplDecl(D);
D->setIdentifier(Reader.GetIdentifierInfo(Record, Idx));
}
void ASTDeclReader::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
VisitObjCImplDecl(D);
D->setSuperClass(
cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
llvm::tie(D->IvarInitializers, D->NumIvarInitializers)
= Reader.ReadCXXBaseOrMemberInitializers(Cursor, Record, Idx);
D->setHasSynthBitfield(Record[Idx++]);
}
void ASTDeclReader::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
VisitDecl(D);
D->setAtLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
D->setPropertyDecl(
cast_or_null<ObjCPropertyDecl>(Reader.GetDecl(Record[Idx++])));
D->setPropertyIvarDecl(
cast_or_null<ObjCIvarDecl>(Reader.GetDecl(Record[Idx++])));
D->setGetterCXXConstructor(Reader.ReadExpr(Cursor));
D->setSetterCXXAssignment(Reader.ReadExpr(Cursor));
}
void ASTDeclReader::VisitFieldDecl(FieldDecl *FD) {
VisitDeclaratorDecl(FD);
FD->setMutable(Record[Idx++]);
if (Record[Idx++])
FD->setBitWidth(Reader.ReadExpr(Cursor));
if (!FD->getDeclName()) {
FieldDecl *Tmpl = cast_or_null<FieldDecl>(Reader.GetDecl(Record[Idx++]));
if (Tmpl)
Reader.getContext()->setInstantiatedFromUnnamedFieldDecl(FD, Tmpl);
}
}
void ASTDeclReader::VisitVarDecl(VarDecl *VD) {
VisitDeclaratorDecl(VD);
VD->setStorageClass((StorageClass)Record[Idx++]);
VD->setStorageClassAsWritten((StorageClass)Record[Idx++]);
VD->setThreadSpecified(Record[Idx++]);
VD->setCXXDirectInitializer(Record[Idx++]);
VD->setExceptionVariable(Record[Idx++]);
VD->setNRVOVariable(Record[Idx++]);
VisitRedeclarable(VD);
if (Record[Idx++])
VD->setInit(Reader.ReadExpr(Cursor));
if (Record[Idx++]) { // HasMemberSpecializationInfo.
VarDecl *Tmpl = cast<VarDecl>(Reader.GetDecl(Record[Idx++]));
TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
Reader.getContext()->setInstantiatedFromStaticDataMember(VD, Tmpl, TSK,POI);
}
}
void ASTDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) {
VisitVarDecl(PD);
}
void ASTDeclReader::VisitParmVarDecl(ParmVarDecl *PD) {
VisitVarDecl(PD);
PD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
PD->setHasInheritedDefaultArg(Record[Idx++]);
if (Record[Idx++]) // hasUninstantiatedDefaultArg.
PD->setUninstantiatedDefaultArg(Reader.ReadExpr(Cursor));
}
void ASTDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) {
VisitDecl(AD);
AD->setAsmString(cast<StringLiteral>(Reader.ReadExpr(Cursor)));
}
void ASTDeclReader::VisitBlockDecl(BlockDecl *BD) {
VisitDecl(BD);
BD->setBody(cast_or_null<CompoundStmt>(Reader.ReadStmt(Cursor)));
BD->setSignatureAsWritten(Reader.GetTypeSourceInfo(Cursor, Record, Idx));
unsigned NumParams = Record[Idx++];
llvm::SmallVector<ParmVarDecl *, 16> Params;
Params.reserve(NumParams);
for (unsigned I = 0; I != NumParams; ++I)
Params.push_back(cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
BD->setParams(Params.data(), NumParams);
}
void ASTDeclReader::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
VisitDecl(D);
D->setLanguage((LinkageSpecDecl::LanguageIDs)Record[Idx++]);
D->setHasBraces(Record[Idx++]);
}
void ASTDeclReader::VisitNamespaceDecl(NamespaceDecl *D) {
VisitNamedDecl(D);
D->setLBracLoc(Reader.ReadSourceLocation(Record, Idx));
D->setRBracLoc(Reader.ReadSourceLocation(Record, Idx));
D->setNextNamespace(
cast_or_null<NamespaceDecl>(Reader.GetDecl(Record[Idx++])));
bool IsOriginal = Record[Idx++];
D->OrigOrAnonNamespace.setInt(IsOriginal);
D->OrigOrAnonNamespace.setPointer(
cast_or_null<NamespaceDecl>(Reader.GetDecl(Record[Idx++])));
}
void ASTDeclReader::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
VisitNamedDecl(D);
D->NamespaceLoc = Reader.ReadSourceLocation(Record, Idx);
D->setQualifierRange(Reader.ReadSourceRange(Record, Idx));
D->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
D->IdentLoc = Reader.ReadSourceLocation(Record, Idx);
D->Namespace = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
}
void ASTDeclReader::VisitUsingDecl(UsingDecl *D) {
VisitNamedDecl(D);
D->setUsingLocation(Reader.ReadSourceLocation(Record, Idx));
D->setNestedNameRange(Reader.ReadSourceRange(Record, Idx));
D->setTargetNestedNameDecl(Reader.ReadNestedNameSpecifier(Record, Idx));
// FIXME: read the DNLoc component.
// FIXME: It would probably be more efficient to read these into a vector
// and then re-cosntruct the shadow decl set over that vector since it
// would avoid existence checks.
unsigned NumShadows = Record[Idx++];
for(unsigned I = 0; I != NumShadows; ++I) {
// Avoid invariant checking of UsingDecl::addShadowDecl, the decl may still
// be initializing.
D->Shadows.insert(cast<UsingShadowDecl>(Reader.GetDecl(Record[Idx++])));
}
D->setTypeName(Record[Idx++]);
NamedDecl *Pattern = cast_or_null<NamedDecl>(Reader.GetDecl(Record[Idx++]));
if (Pattern)
Reader.getContext()->setInstantiatedFromUsingDecl(D, Pattern);
}
void ASTDeclReader::VisitUsingShadowDecl(UsingShadowDecl *D) {
VisitNamedDecl(D);
D->setTargetDecl(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
D->setUsingDecl(cast<UsingDecl>(Reader.GetDecl(Record[Idx++])));
UsingShadowDecl *Pattern
= cast_or_null<UsingShadowDecl>(Reader.GetDecl(Record[Idx++]));
if (Pattern)
Reader.getContext()->setInstantiatedFromUsingShadowDecl(D, Pattern);
}
void ASTDeclReader::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
VisitNamedDecl(D);
D->UsingLoc = Reader.ReadSourceLocation(Record, Idx);
D->NamespaceLoc = Reader.ReadSourceLocation(Record, Idx);
D->QualifierRange = Reader.ReadSourceRange(Record, Idx);
D->Qualifier = Reader.ReadNestedNameSpecifier(Record, Idx);
D->NominatedNamespace = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
D->CommonAncestor = cast_or_null<DeclContext>(Reader.GetDecl(Record[Idx++]));
}
void ASTDeclReader::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
VisitValueDecl(D);
D->setTargetNestedNameRange(Reader.ReadSourceRange(Record, Idx));
D->setUsingLoc(Reader.ReadSourceLocation(Record, Idx));
D->setTargetNestedNameSpecifier(Reader.ReadNestedNameSpecifier(Record, Idx));
// FIXME: read the DNLoc component.
}
void ASTDeclReader::VisitUnresolvedUsingTypenameDecl(
UnresolvedUsingTypenameDecl *D) {
VisitTypeDecl(D);
D->TargetNestedNameRange = Reader.ReadSourceRange(Record, Idx);
D->UsingLocation = Reader.ReadSourceLocation(Record, Idx);
D->TypenameLocation = Reader.ReadSourceLocation(Record, Idx);
D->TargetNestedNameSpecifier = Reader.ReadNestedNameSpecifier(Record, Idx);
}
void ASTDeclReader::VisitCXXRecordDecl(CXXRecordDecl *D) {
ASTContext &C = *Reader.getContext();
// We need to allocate the DefinitionData struct ahead of VisitRecordDecl
// so that the other CXXRecordDecls can get a pointer even when the owner
// is still initializing.
bool OwnsDefinitionData = false;
enum DataOwnership { Data_NoDefData, Data_Owner, Data_NotOwner };
switch ((DataOwnership)Record[Idx++]) {
default:
assert(0 && "Out of sync with ASTDeclWriter or messed up reading");
case Data_NoDefData:
break;
case Data_Owner:
OwnsDefinitionData = true;
D->DefinitionData = new (C) struct CXXRecordDecl::DefinitionData(D);
break;
case Data_NotOwner:
D->DefinitionData
= cast<CXXRecordDecl>(Reader.GetDecl(Record[Idx++]))->DefinitionData;
break;
}
VisitRecordDecl(D);
if (OwnsDefinitionData) {
assert(D->DefinitionData);
struct CXXRecordDecl::DefinitionData &Data = *D->DefinitionData;
Data.UserDeclaredConstructor = Record[Idx++];
Data.UserDeclaredCopyConstructor = Record[Idx++];
Data.UserDeclaredCopyAssignment = Record[Idx++];
Data.UserDeclaredDestructor = Record[Idx++];
Data.Aggregate = Record[Idx++];
Data.PlainOldData = Record[Idx++];
Data.Empty = Record[Idx++];
Data.Polymorphic = Record[Idx++];
Data.Abstract = Record[Idx++];
Data.HasTrivialConstructor = Record[Idx++];
Data.HasTrivialCopyConstructor = Record[Idx++];
Data.HasTrivialCopyAssignment = Record[Idx++];
Data.HasTrivialDestructor = Record[Idx++];
Data.ComputedVisibleConversions = Record[Idx++];
Data.DeclaredDefaultConstructor = Record[Idx++];
Data.DeclaredCopyConstructor = Record[Idx++];
Data.DeclaredCopyAssignment = Record[Idx++];
Data.DeclaredDestructor = Record[Idx++];
// setBases() is unsuitable since it may try to iterate the bases of an
// uninitialized base.
Data.NumBases = Record[Idx++];
Data.Bases = new(C) CXXBaseSpecifier [Data.NumBases];
for (unsigned i = 0; i != Data.NumBases; ++i)
Data.Bases[i] = Reader.ReadCXXBaseSpecifier(Cursor, Record, Idx);
// FIXME: Make VBases lazily computed when needed to avoid storing them.
Data.NumVBases = Record[Idx++];
Data.VBases = new(C) CXXBaseSpecifier [Data.NumVBases];
for (unsigned i = 0; i != Data.NumVBases; ++i)
Data.VBases[i] = Reader.ReadCXXBaseSpecifier(Cursor, Record, Idx);
Reader.ReadUnresolvedSet(Data.Conversions, Record, Idx);
Reader.ReadUnresolvedSet(Data.VisibleConversions, Record, Idx);
assert(Data.Definition && "Data.Definition should be already set!");
Data.FirstFriend
= cast_or_null<FriendDecl>(Reader.GetDecl(Record[Idx++]));
}
enum CXXRecKind {
CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
};
switch ((CXXRecKind)Record[Idx++]) {
default:
assert(false && "Out of sync with ASTDeclWriter::VisitCXXRecordDecl?");
case CXXRecNotTemplate:
break;
case CXXRecTemplate:
D->setDescribedClassTemplate(
cast<ClassTemplateDecl>(Reader.GetDecl(Record[Idx++])));
break;
case CXXRecMemberSpecialization: {
CXXRecordDecl *RD = cast<CXXRecordDecl>(Reader.GetDecl(Record[Idx++]));
TemplateSpecializationKind TSK = (TemplateSpecializationKind)Record[Idx++];
SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
D->setInstantiationOfMemberClass(RD, TSK);
D->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
break;
}
}
}
void ASTDeclReader::VisitCXXMethodDecl(CXXMethodDecl *D) {
VisitFunctionDecl(D);
unsigned NumOverridenMethods = Record[Idx++];
while (NumOverridenMethods--) {
CXXMethodDecl *MD = cast<CXXMethodDecl>(Reader.GetDecl(Record[Idx++]));
// Avoid invariant checking of CXXMethodDecl::addOverriddenMethod,
// MD may be initializing.
Reader.getContext()->addOverriddenMethod(D, MD);
}
}
void ASTDeclReader::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
VisitCXXMethodDecl(D);
D->IsExplicitSpecified = Record[Idx++];
D->ImplicitlyDefined = Record[Idx++];
llvm::tie(D->BaseOrMemberInitializers, D->NumBaseOrMemberInitializers)
= Reader.ReadCXXBaseOrMemberInitializers(Cursor, Record, Idx);
}
void ASTDeclReader::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
VisitCXXMethodDecl(D);
D->ImplicitlyDefined = Record[Idx++];
D->OperatorDelete = cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++]));
}
void ASTDeclReader::VisitCXXConversionDecl(CXXConversionDecl *D) {
VisitCXXMethodDecl(D);
D->IsExplicitSpecified = Record[Idx++];
}
void ASTDeclReader::VisitAccessSpecDecl(AccessSpecDecl *D) {
VisitDecl(D);
D->setColonLoc(Reader.ReadSourceLocation(Record, Idx));
}
void ASTDeclReader::VisitFriendDecl(FriendDecl *D) {
VisitDecl(D);
if (Record[Idx++])
D->Friend = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
else
D->Friend = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
D->NextFriend = cast_or_null<FriendDecl>(Reader.GetDecl(Record[Idx++]));
D->FriendLoc = Reader.ReadSourceLocation(Record, Idx);
}
void 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(Record, Idx);
if (Record[Idx++]) // HasFriendDecl
D->Friend = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
else
D->Friend = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
D->FriendLoc = Reader.ReadSourceLocation(Record, Idx);
}
void ASTDeclReader::VisitTemplateDecl(TemplateDecl *D) {
VisitNamedDecl(D);
NamedDecl *TemplatedDecl
= cast_or_null<NamedDecl>(Reader.GetDecl(Record[Idx++]));
TemplateParameterList* TemplateParams
= Reader.ReadTemplateParameterList(Record, Idx);
D->init(TemplatedDecl, TemplateParams);
}
void ASTDeclReader::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
VisitTemplateDecl(D);
D->IdentifierNamespace = Record[Idx++];
RedeclarableTemplateDecl *PrevDecl =
cast_or_null<RedeclarableTemplateDecl>(Reader.GetDecl(Record[Idx++]));
assert((PrevDecl == 0 || PrevDecl->getKind() == D->getKind()) &&
"PrevDecl kind mismatch");
if (PrevDecl)
D->CommonOrPrev = PrevDecl;
if (PrevDecl == 0) {
if (RedeclarableTemplateDecl *RTD
= cast_or_null<RedeclarableTemplateDecl>(Reader.GetDecl(Record[Idx++]))) {
assert(RTD->getKind() == D->getKind() &&
"InstantiatedFromMemberTemplate kind mismatch");
D->setInstantiatedFromMemberTemplateImpl(RTD);
if (Record[Idx++])
D->setMemberSpecialization();
}
RedeclarableTemplateDecl *LatestDecl =
cast_or_null<RedeclarableTemplateDecl>(Reader.GetDecl(Record[Idx++]));
// This decl is a first one and the latest declaration that it points to is
// in the same AST file. However, if this actually needs to point to a
// redeclaration in another AST file, we need to update it by checking
// the FirstLatestDeclIDs map which tracks this kind of decls.
assert(Reader.GetDecl(ThisDeclID) == D && "Invalid ThisDeclID ?");
ASTReader::FirstLatestDeclIDMap::iterator I
= Reader.FirstLatestDeclIDs.find(ThisDeclID);
if (I != Reader.FirstLatestDeclIDs.end()) {
Decl *NewLatest = Reader.GetDecl(I->second);
assert((LatestDecl->getLocation().isInvalid() ||
NewLatest->getLocation().isInvalid() ||
Reader.SourceMgr.isBeforeInTranslationUnit(
LatestDecl->getLocation(),
NewLatest->getLocation())) &&
"The new latest is supposed to come after the previous latest");
LatestDecl = cast<RedeclarableTemplateDecl>(NewLatest);
}
assert(LatestDecl->getKind() == D->getKind() && "Latest kind mismatch");
D->getCommonPtr()->Latest = LatestDecl;
}
}
void ASTDeclReader::VisitClassTemplateDecl(ClassTemplateDecl *D) {
VisitRedeclarableTemplateDecl(D);
if (D->getPreviousDeclaration() == 0) {
// This ClassTemplateDecl owns a CommonPtr; read it.
// FoldingSets are filled in VisitClassTemplateSpecializationDecl.
unsigned size = Record[Idx++];
while (size--)
cast<ClassTemplateSpecializationDecl>(Reader.GetDecl(Record[Idx++]));
size = Record[Idx++];
while (size--)
cast<ClassTemplatePartialSpecializationDecl>(
Reader.GetDecl(Record[Idx++]));
// InjectedClassNameType is computed.
}
}
void ASTDeclReader::VisitClassTemplateSpecializationDecl(
ClassTemplateSpecializationDecl *D) {
VisitCXXRecordDecl(D);
if (Decl *InstD = Reader.GetDecl(Record[Idx++])) {
if (ClassTemplateDecl *CTD = dyn_cast<ClassTemplateDecl>(InstD)) {
D->setInstantiationOf(CTD);
} else {
llvm::SmallVector<TemplateArgument, 8> TemplArgs;
Reader.ReadTemplateArgumentList(TemplArgs, Cursor, Record, Idx);
D->setInstantiationOf(cast<ClassTemplatePartialSpecializationDecl>(InstD),
TemplArgs.data(), TemplArgs.size());
}
}
// Explicit info.
if (TypeSourceInfo *TyInfo = Reader.GetTypeSourceInfo(Cursor, Record, Idx)) {
D->setTypeAsWritten(TyInfo);
D->setExternLoc(Reader.ReadSourceLocation(Record, Idx));
D->setTemplateKeywordLoc(Reader.ReadSourceLocation(Record, Idx));
}
llvm::SmallVector<TemplateArgument, 8> TemplArgs;
Reader.ReadTemplateArgumentList(TemplArgs, Cursor, Record, Idx);
D->initTemplateArgs(TemplArgs.data(), TemplArgs.size());
SourceLocation POI = Reader.ReadSourceLocation(Record, Idx);
if (POI.isValid())
D->setPointOfInstantiation(POI);
D->setSpecializationKind((TemplateSpecializationKind)Record[Idx++]);
if (D->isCanonicalDecl()) { // It's kept in the folding set.
ClassTemplateDecl *CanonPattern
= cast<ClassTemplateDecl>(Reader.GetDecl(Record[Idx++]));
if (ClassTemplatePartialSpecializationDecl *Partial
= dyn_cast<ClassTemplatePartialSpecializationDecl>(D)) {
CanonPattern->getPartialSpecializations().InsertNode(Partial);
} else {
CanonPattern->getSpecializations().InsertNode(D);
}
}
}
void ASTDeclReader::VisitClassTemplatePartialSpecializationDecl(
ClassTemplatePartialSpecializationDecl *D) {
VisitClassTemplateSpecializationDecl(D);
D->initTemplateParameters(Reader.ReadTemplateParameterList(Record, Idx));
TemplateArgumentListInfo ArgInfos;
unsigned NumArgs = Record[Idx++];
while (NumArgs--)
ArgInfos.addArgument(Reader.ReadTemplateArgumentLoc(Cursor, Record, Idx));
D->initTemplateArgsAsWritten(ArgInfos);
D->setSequenceNumber(Record[Idx++]);
// These are read/set from/to the first declaration.
if (D->getPreviousDeclaration() == 0) {
D->setInstantiatedFromMember(
cast_or_null<ClassTemplatePartialSpecializationDecl>(
Reader.GetDecl(Record[Idx++])));
if (Record[Idx++])
D->setMemberSpecialization();
}
}
void ASTDeclReader::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
VisitRedeclarableTemplateDecl(D);
if (D->getPreviousDeclaration() == 0) {
// This FunctionTemplateDecl owns a CommonPtr; read it.
// Read the function specialization declarations.
// FunctionTemplateDecl's FunctionTemplateSpecializationInfos are filled
// through the specialized FunctionDecl's setFunctionTemplateSpecialization.
unsigned NumSpecs = Record[Idx++];
while (NumSpecs--)
Reader.GetDecl(Record[Idx++]);
}
}
void ASTDeclReader::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
VisitTypeDecl(D);
D->setDeclaredWithTypename(Record[Idx++]);
D->setParameterPack(Record[Idx++]);
bool Inherited = Record[Idx++];
TypeSourceInfo *DefArg = Reader.GetTypeSourceInfo(Cursor, Record, Idx);
D->setDefaultArgument(DefArg, Inherited);
}
void ASTDeclReader::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
VisitVarDecl(D);
// TemplateParmPosition.
D->setDepth(Record[Idx++]);
D->setPosition(Record[Idx++]);
// Rest of NonTypeTemplateParmDecl.
if (Record[Idx++]) {
Expr *DefArg = Reader.ReadExpr(Cursor);
bool Inherited = Record[Idx++];
D->setDefaultArgument(DefArg, Inherited);
}
}
void ASTDeclReader::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
VisitTemplateDecl(D);
// TemplateParmPosition.
D->setDepth(Record[Idx++]);
D->setPosition(Record[Idx++]);
// Rest of TemplateTemplateParmDecl.
TemplateArgumentLoc Arg = Reader.ReadTemplateArgumentLoc(Cursor, Record, Idx);
bool IsInherited = Record[Idx++];
D->setDefaultArgument(Arg, IsInherited);
}
void ASTDeclReader::VisitStaticAssertDecl(StaticAssertDecl *D) {
VisitDecl(D);
D->AssertExpr = Reader.ReadExpr(Cursor);
D->Message = cast<StringLiteral>(Reader.ReadExpr(Cursor));
}
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>
void ASTDeclReader::VisitRedeclarable(Redeclarable<T> *D) {
enum RedeclKind { NoRedeclaration = 0, PointsToPrevious, PointsToLatest };
RedeclKind Kind = (RedeclKind)Record[Idx++];
switch (Kind) {
default:
assert(0 && "Out of sync with ASTDeclWriter::VisitRedeclarable or messed up"
" reading");
case NoRedeclaration:
break;
case PointsToPrevious:
D->RedeclLink = typename Redeclarable<T>::PreviousDeclLink(
cast_or_null<T>(Reader.GetDecl(Record[Idx++])));
break;
case PointsToLatest:
D->RedeclLink = typename Redeclarable<T>::LatestDeclLink(
cast_or_null<T>(Reader.GetDecl(Record[Idx++])));
break;
}
assert(!(Kind == PointsToPrevious &&
Reader.FirstLatestDeclIDs.find(ThisDeclID) !=
Reader.FirstLatestDeclIDs.end()) &&
"This decl is not first, it should not be in the map");
if (Kind == PointsToPrevious)
return;
// This decl is a first one and the latest declaration that it points to is in
// the same AST file. However, if this actually needs to point to a
// redeclaration in another AST file, we need to update it by checking the
// FirstLatestDeclIDs map which tracks this kind of decls.
assert(Reader.GetDecl(ThisDeclID) == static_cast<T*>(D) &&
"Invalid ThisDeclID ?");
ASTReader::FirstLatestDeclIDMap::iterator I
= Reader.FirstLatestDeclIDs.find(ThisDeclID);
if (I != Reader.FirstLatestDeclIDs.end()) {
Decl *NewLatest = Reader.GetDecl(I->second);
assert((D->getMostRecentDeclaration()->getLocation().isInvalid() ||
NewLatest->getLocation().isInvalid() ||
Reader.SourceMgr.isBeforeInTranslationUnit(
D->getMostRecentDeclaration()->getLocation(),
NewLatest->getLocation())) &&
"The new latest is supposed to come after the previous latest");
D->RedeclLink
= typename Redeclarable<T>::LatestDeclLink(cast_or_null<T>(NewLatest));
}
}
//===----------------------------------------------------------------------===//
// Attribute Reading
//===----------------------------------------------------------------------===//
/// \brief Reads attributes from the current stream position.
void ASTReader::ReadAttributes(llvm::BitstreamCursor &DeclsCursor,
AttrVec &Attrs) {
unsigned Code = DeclsCursor.ReadCode();
assert(Code == llvm::bitc::UNABBREV_RECORD &&
"Expected unabbreviated record"); (void)Code;
RecordData Record;
unsigned Idx = 0;
unsigned RecCode = DeclsCursor.ReadRecord(Code, Record);
assert(RecCode == DECL_ATTR && "Expected attribute record");
(void)RecCode;
while (Idx < Record.size()) {
Attr *New = 0;
attr::Kind Kind = (attr::Kind)Record[Idx++];
SourceLocation Loc = SourceLocation::getFromRawEncoding(Record[Idx++]);
bool isInherited = Record[Idx++];
#include "clang/Serialization/AttrPCHRead.inc"
assert(New && "Unable to decode attribute?");
New->setInherited(isInherited);
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) {
if (isa<FileScopeAsmDecl>(D))
return true;
if (VarDecl *Var = dyn_cast<VarDecl>(D))
return Var->isFileVarDecl() &&
Var->isThisDeclarationADefinition() == VarDecl::Definition;
if (FunctionDecl *Func = dyn_cast<FunctionDecl>(D))
return Func->isThisDeclarationADefinition();
return isa<ObjCProtocolDecl>(D) || isa<ObjCImplementationDecl>(D);
}
/// \brief Get the correct cursor and offset for loading a type.
ASTReader::RecordLocation
ASTReader::DeclCursorForIndex(unsigned Index, DeclID ID) {
// See if there's an override.
DeclReplacementMap::iterator It = ReplacedDecls.find(ID);
if (It != ReplacedDecls.end())
return RecordLocation(&It->second.first->DeclsCursor, It->second.second);
PerFileData *F = 0;
for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
F = Chain[N - I - 1];
if (Index < F->LocalNumDecls)
break;
Index -= F->LocalNumDecls;
}
assert(F && F->LocalNumDecls > Index && "Broken chain");
return RecordLocation(&F->DeclsCursor, F->DeclOffsets[Index]);
}
/// \brief Read the declaration at the given offset from the AST file.
Decl *ASTReader::ReadDeclRecord(unsigned Index, DeclID ID) {
RecordLocation Loc = DeclCursorForIndex(Index, ID);
llvm::BitstreamCursor &DeclsCursor = *Loc.first;
// Keep track of where we are in the stream, then jump back there
// after reading this declaration.
SavedStreamPosition SavedPosition(DeclsCursor);
ReadingKindTracker ReadingKind(Read_Decl, *this);
// Note that we are loading a declaration record.
Deserializing ADecl(this);
DeclsCursor.JumpToBit(Loc.second);
RecordData Record;
unsigned Code = DeclsCursor.ReadCode();
unsigned Idx = 0;
ASTDeclReader Reader(*this, DeclsCursor, ID, Record, Idx);
Decl *D = 0;
switch ((DeclCode)DeclsCursor.ReadRecord(Code, Record)) {
case DECL_ATTR:
case DECL_CONTEXT_LEXICAL:
case DECL_CONTEXT_VISIBLE:
assert(false && "Record cannot be de-serialized with ReadDeclRecord");
break;
case DECL_TRANSLATION_UNIT:
assert(Index == 0 && "Translation unit must be at index 0");
D = Context->getTranslationUnitDecl();
break;
case DECL_TYPEDEF:
D = TypedefDecl::Create(*Context, 0, SourceLocation(), 0, 0);
break;
case DECL_ENUM:
D = EnumDecl::Create(*Context, Decl::EmptyShell());
break;
case DECL_RECORD:
D = RecordDecl::Create(*Context, Decl::EmptyShell());
break;
case DECL_ENUM_CONSTANT:
D = EnumConstantDecl::Create(*Context, 0, SourceLocation(), 0, QualType(),
0, llvm::APSInt());
break;
case DECL_FUNCTION:
D = FunctionDecl::Create(*Context, 0, SourceLocation(), DeclarationName(),
QualType(), 0);
break;
case DECL_LINKAGE_SPEC:
D = LinkageSpecDecl::Create(*Context, 0, SourceLocation(),
(LinkageSpecDecl::LanguageIDs)0,
false);
break;
case DECL_NAMESPACE:
D = NamespaceDecl::Create(*Context, 0, SourceLocation(), 0);
break;
case DECL_NAMESPACE_ALIAS:
D = NamespaceAliasDecl::Create(*Context, 0, SourceLocation(),
SourceLocation(), 0, SourceRange(), 0,
SourceLocation(), 0);
break;
case DECL_USING:
D = UsingDecl::Create(*Context, 0, SourceRange(), SourceLocation(),
0, DeclarationNameInfo(), false);
break;
case DECL_USING_SHADOW:
D = UsingShadowDecl::Create(*Context, 0, SourceLocation(), 0, 0);
break;
case DECL_USING_DIRECTIVE:
D = UsingDirectiveDecl::Create(*Context, 0, SourceLocation(),
SourceLocation(), SourceRange(), 0,
SourceLocation(), 0, 0);
break;
case DECL_UNRESOLVED_USING_VALUE:
D = UnresolvedUsingValueDecl::Create(*Context, 0, SourceLocation(),
SourceRange(), 0,
DeclarationNameInfo());
break;
case DECL_UNRESOLVED_USING_TYPENAME:
D = UnresolvedUsingTypenameDecl::Create(*Context, 0, SourceLocation(),
SourceLocation(), SourceRange(),
0, SourceLocation(),
DeclarationName());
break;
case DECL_CXX_RECORD:
D = CXXRecordDecl::Create(*Context, Decl::EmptyShell());
break;
case DECL_CXX_METHOD:
D = CXXMethodDecl::Create(*Context, 0, DeclarationNameInfo(),
QualType(), 0);
break;
case DECL_CXX_CONSTRUCTOR:
D = CXXConstructorDecl::Create(*Context, Decl::EmptyShell());
break;
case DECL_CXX_DESTRUCTOR:
D = CXXDestructorDecl::Create(*Context, Decl::EmptyShell());
break;
case DECL_CXX_CONVERSION:
D = CXXConversionDecl::Create(*Context, Decl::EmptyShell());
break;
case DECL_ACCESS_SPEC:
D = AccessSpecDecl::Create(*Context, AS_none, 0, SourceLocation(),
SourceLocation());
break;
case DECL_FRIEND:
D = FriendDecl::Create(*Context, Decl::EmptyShell());
break;
case DECL_FRIEND_TEMPLATE:
D = FriendTemplateDecl::Create(*Context, Decl::EmptyShell());
break;
case DECL_CLASS_TEMPLATE:
D = ClassTemplateDecl::Create(*Context, 0, SourceLocation(),
DeclarationName(), 0, 0, 0);
break;
case DECL_CLASS_TEMPLATE_SPECIALIZATION:
D = ClassTemplateSpecializationDecl::Create(*Context, Decl::EmptyShell());
break;
case DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION:
D = ClassTemplatePartialSpecializationDecl::Create(*Context,
Decl::EmptyShell());
break;
case DECL_FUNCTION_TEMPLATE:
D = FunctionTemplateDecl::Create(*Context, 0, SourceLocation(),
DeclarationName(), 0, 0);
break;
case DECL_TEMPLATE_TYPE_PARM:
D = TemplateTypeParmDecl::Create(*Context, Decl::EmptyShell());
break;
case DECL_NON_TYPE_TEMPLATE_PARM:
D = NonTypeTemplateParmDecl::Create(*Context, 0, SourceLocation(), 0,0,0,
QualType(),0);
break;
case DECL_TEMPLATE_TEMPLATE_PARM:
D = TemplateTemplateParmDecl::Create(*Context, 0, SourceLocation(),0,0,0,0);
break;
case DECL_STATIC_ASSERT:
D = StaticAssertDecl::Create(*Context, 0, SourceLocation(), 0, 0);
break;
case DECL_OBJC_METHOD:
D = ObjCMethodDecl::Create(*Context, SourceLocation(), SourceLocation(),
Selector(), QualType(), 0, 0);
break;
case DECL_OBJC_INTERFACE:
D = ObjCInterfaceDecl::Create(*Context, 0, SourceLocation(), 0);
break;
case DECL_OBJC_IVAR:
D = ObjCIvarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0,
ObjCIvarDecl::None);
break;
case DECL_OBJC_PROTOCOL:
D = ObjCProtocolDecl::Create(*Context, 0, SourceLocation(), 0);
break;
case DECL_OBJC_AT_DEFS_FIELD:
D = ObjCAtDefsFieldDecl::Create(*Context, 0, SourceLocation(), 0,
QualType(), 0);
break;
case DECL_OBJC_CLASS:
D = ObjCClassDecl::Create(*Context, 0, SourceLocation());
break;
case DECL_OBJC_FORWARD_PROTOCOL:
D = ObjCForwardProtocolDecl::Create(*Context, 0, SourceLocation());
break;
case DECL_OBJC_CATEGORY:
D = ObjCCategoryDecl::Create(*Context, 0, SourceLocation(),
SourceLocation(), SourceLocation(), 0);
break;
case DECL_OBJC_CATEGORY_IMPL:
D = ObjCCategoryImplDecl::Create(*Context, 0, SourceLocation(), 0, 0);
break;
case DECL_OBJC_IMPLEMENTATION:
D = ObjCImplementationDecl::Create(*Context, 0, SourceLocation(), 0, 0);
break;
case DECL_OBJC_COMPATIBLE_ALIAS:
D = ObjCCompatibleAliasDecl::Create(*Context, 0, SourceLocation(), 0, 0);
break;
case DECL_OBJC_PROPERTY:
D = ObjCPropertyDecl::Create(*Context, 0, SourceLocation(), 0, SourceLocation(),
0);
break;
case DECL_OBJC_PROPERTY_IMPL:
D = ObjCPropertyImplDecl::Create(*Context, 0, SourceLocation(),
SourceLocation(), 0,
ObjCPropertyImplDecl::Dynamic, 0);
break;
case DECL_FIELD:
D = FieldDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0, 0,
false);
break;
case DECL_VAR:
D = VarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0,
SC_None, SC_None);
break;
case DECL_IMPLICIT_PARAM:
D = ImplicitParamDecl::Create(*Context, 0, SourceLocation(), 0, QualType());
break;
case DECL_PARM_VAR:
D = ParmVarDecl::Create(*Context, 0, SourceLocation(), 0, QualType(), 0,
SC_None, SC_None, 0);
break;
case DECL_FILE_SCOPE_ASM:
D = FileScopeAsmDecl::Create(*Context, 0, SourceLocation(), 0);
break;
case DECL_BLOCK:
D = BlockDecl::Create(*Context, 0, SourceLocation());
break;
}
assert(D && "Unknown declaration reading AST file");
LoadedDecl(Index, D);
Reader.Visit(D);
// If this declaration is also a declaration context, get the
// offsets for its tables of lexical and visible declarations.
if (DeclContext *DC = dyn_cast<DeclContext>(D)) {
std::pair<uint64_t, uint64_t> Offsets = Reader.VisitDeclContext(DC);
if (Offsets.first || Offsets.second) {
DC->setHasExternalLexicalStorage(Offsets.first != 0);
DC->setHasExternalVisibleStorage(Offsets.second != 0);
DeclContextInfo Info;
if (ReadDeclContextStorage(DeclsCursor, Offsets, Info))
return 0;
DeclContextInfos &Infos = DeclContextOffsets[DC];
// Reading the TU will happen after reading its lexical update blocks,
// so we need to make sure we insert in front. For all other contexts,
// the vector is empty here anyway, so there's no loss in efficiency.
Infos.insert(Infos.begin(), Info);
// Now add the pending visible updates for this decl context, if it has
// any.
DeclContextVisibleUpdatesPending::iterator I =
PendingVisibleUpdates.find(ID);
if (I != PendingVisibleUpdates.end()) {
DeclContextVisibleUpdates &U = I->second;
Info.LexicalDecls = 0;
Info.NumLexicalDecls = 0;
for (DeclContextVisibleUpdates::iterator UI = U.begin(), UE = U.end();
UI != UE; ++UI) {
Info.NameLookupTableData = *UI;
Infos.push_back(Info);
}
PendingVisibleUpdates.erase(I);
}
}
}
// If this is a template, read additional specializations that may be in a
// different part of the chain.
if (isa<RedeclarableTemplateDecl>(D)) {
AdditionalTemplateSpecializationsMap::iterator F =
AdditionalTemplateSpecializationsPending.find(ID);
if (F != AdditionalTemplateSpecializationsPending.end()) {
for (AdditionalTemplateSpecializations::iterator I = F->second.begin(),
E = F->second.end();
I != E; ++I)
GetDecl(*I);
AdditionalTemplateSpecializationsPending.erase(F);
}
}
assert(Idx == Record.size());
// If we have deserialized a declaration that has a definition the
// AST consumer might need to know about, queue it.
// We don't pass it to the consumer immediately because we may be in recursive
// loading, and some declarations may still be initializing.
if (isConsumerInterestedIn(D))
InterestingDecls.push_back(D);
return D;
}