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llvm-project/clang/lib/Frontend/PCHReaderDecl.cpp

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