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gerrit-public.fairphone.software / fp2-dev / platform / external / clang / 2b7baf0816a40af3fde3a3e174192a549b785a50 / . / lib / Frontend / PCHReaderDecl.cpp
blob: 1ef0441ebf60842f29fcaa6d76acc0d816b88f78 [file] [log] [blame]
//===--- 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 {
class PCHDeclReader : public DeclVisitor<PCHDeclReader, void> {
PCHReader &Reader;
const PCHReader::RecordData &Record;
unsigned &Idx;
public:
PCHDeclReader(PCHReader &Reader, const PCHReader::RecordData &Record,
unsigned &Idx)
: Reader(Reader), Record(Record), Idx(Idx) { }
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 VisitUnresolvedUsingTypename(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 VisitUnresolvedUsingValue(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 VisitUsing(UsingDecl *D);
void VisitUsingShadow(UsingShadowDecl *D);
void VisitLinkageSpecDecl(LinkageSpecDecl *D);
void VisitFileScopeAsmDecl(FileScopeAsmDecl *AD);
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.def?
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);
};
}
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->addAttr(Reader.ReadAttributes());
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);
TD->setTypeForDecl(Reader.GetType(Record[Idx++]).getTypePtr());
}
void PCHDeclReader::VisitTypedefDecl(TypedefDecl *TD) {
// Note that we cannot use VisitTypeDecl here, because we need to
// set the underlying type of the typedef *before* we try to read
// the type associated with the TypedefDecl.
VisitNamedDecl(TD);
uint64_t TypeData = Record[Idx++];
TD->setTypeSourceInfo(Reader.GetTypeSourceInfo(Record, Idx));
TD->setTypeForDecl(Reader.GetType(TypeData).getTypePtr());
}
void PCHDeclReader::VisitTagDecl(TagDecl *TD) {
VisitTypeDecl(TD);
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++]);
// FIXME: C++ InstantiatedFrom
}
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.ReadDeclExpr());
ECD->setInitVal(Reader.ReadAPSInt(Record, Idx));
}
void PCHDeclReader::VisitDeclaratorDecl(DeclaratorDecl *DD) {
VisitValueDecl(DD);
TypeSourceInfo *TInfo = Reader.GetTypeSourceInfo(Record, Idx);
if (TInfo)
DD->setTypeSourceInfo(TInfo);
// FIXME: read optional qualifier and its range.
}
void PCHDeclReader::VisitFunctionDecl(FunctionDecl *FD) {
VisitDeclaratorDecl(FD);
if (Record[Idx++])
FD->setLazyBody(Reader.getDeclsCursor().GetCurrentBitNo());
FD->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++]));
// FIXME: C++ TemplateOrInstantiation
// 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);
// FIXME: order this properly w.r.t. friendness
// FIXME: this same thing needs to happen for function templates
if (FD->isOverloadedOperator() && !FD->getDeclContext()->isRecord())
FD->setNonMemberOperator();
}
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.ReadDeclStmt());
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->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(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++]);
}
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.GetType(Record[Idx++]));
// FIXME: stable encoding
D->setPropertyAttributes(
(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.ReadDeclExpr());
}
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.ReadDeclExpr());
}
void PCHDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) {
VisitVarDecl(PD);
}
void PCHDeclReader::VisitParmVarDecl(ParmVarDecl *PD) {
VisitVarDecl(PD);
PD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
PD->setHasInheritedDefaultArg(Record[Idx++]);
}
void PCHDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) {
VisitDecl(AD);
AD->setAsmString(cast<StringLiteral>(Reader.ReadDeclExpr()));
}
void PCHDeclReader::VisitBlockDecl(BlockDecl *BD) {
VisitDecl(BD);
BD->setBody(cast_or_null<CompoundStmt>(Reader.ReadDeclStmt()));
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++])));
// Only read one reference--the original or anonymous namespace.
bool IsOriginal = Record[Idx++];
if (IsOriginal)
D->setAnonymousNamespace(
cast_or_null<NamespaceDecl>(Reader.GetDecl(Record[Idx++])));
else
D->setOriginalNamespace(
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::VisitUsing(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) {
D->addShadowDecl(cast<UsingShadowDecl>(Reader.GetDecl(Record[Idx++])));
}
D->setTypeName(Record[Idx++]);
}
void PCHDeclReader::VisitUsingShadow(UsingShadowDecl *D) {
VisitNamedDecl(D);
D->setTargetDecl(cast<NamedDecl>(Reader.GetDecl(Record[Idx++])));
D->setUsingDecl(cast<UsingDecl>(Reader.GetDecl(Record[Idx++])));
}
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::VisitUnresolvedUsingValue(UnresolvedUsingValueDecl *D) {
VisitValueDecl(D);
D->setTargetNestedNameRange(Reader.ReadSourceRange(Record, Idx));
D->setUsingLoc(Reader.ReadSourceLocation(Record, Idx));
D->setTargetNestedNameSpecifier(Reader.ReadNestedNameSpecifier(Record, Idx));
}
void PCHDeclReader::VisitUnresolvedUsingTypename(
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) {
// assert(false && "cannot read CXXRecordDecl");
VisitRecordDecl(D);
}
void PCHDeclReader::VisitCXXMethodDecl(CXXMethodDecl *D) {
// assert(false && "cannot read CXXMethodDecl");
VisitFunctionDecl(D);
}
void PCHDeclReader::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
// assert(false && "cannot read CXXConstructorDecl");
VisitCXXMethodDecl(D);
}
void PCHDeclReader::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
// assert(false && "cannot read CXXDestructorDecl");
VisitCXXMethodDecl(D);
}
void PCHDeclReader::VisitCXXConversionDecl(CXXConversionDecl *D) {
// assert(false && "cannot read CXXConversionDecl");
VisitCXXMethodDecl(D);
}
void PCHDeclReader::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
assert(false && "cannot read FriendTemplateDecl");
}
void PCHDeclReader::VisitTemplateDecl(TemplateDecl *D) {
assert(false && "cannot read TemplateDecl");
}
void PCHDeclReader::VisitClassTemplateDecl(ClassTemplateDecl *D) {
assert(false && "cannot read ClassTemplateDecl");
}
void PCHDeclReader::VisitClassTemplateSpecializationDecl(
ClassTemplateSpecializationDecl *D) {
assert(false && "cannot read ClassTemplateSpecializationDecl");
}
void PCHDeclReader::VisitClassTemplatePartialSpecializationDecl(
ClassTemplatePartialSpecializationDecl *D) {
assert(false && "cannot read ClassTemplatePartialSpecializationDecl");
}
void PCHDeclReader::visitFunctionTemplateDecl(FunctionTemplateDecl *D) {
assert(false && "cannot read FunctionTemplateDecl");
}
void PCHDeclReader::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
assert(false && "cannot read TemplateTypeParmDecl");
}
void PCHDeclReader::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
assert(false && "cannot read NonTypeTemplateParmDecl");
}
void PCHDeclReader::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
assert(false && "cannot read TemplateTemplateParmDecl");
}
void PCHDeclReader::VisitStaticAssertDecl(StaticAssertDecl *D) {
assert(false && "cannot read StaticAssertDecl");
}
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() {
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::IBActionKind:
New = ::new (*Context) IBActionAttr();
break;
case Attr::IBOutletKind:
New = ::new (*Context) IBOutletAttr();
break;
case Attr::IBOutletCollectionKind: {
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 Read the declaration at the given offset from the PCH file.
Decl *PCHReader::ReadDeclRecord(uint64_t Offset, unsigned Index) {
// Keep track of where we are in the stream, then jump back there
// after reading this declaration.
SavedStreamPosition SavedPosition(DeclsCursor);
// Note that we are loading a declaration record.
LoadingTypeOrDecl Loading(*this);
DeclsCursor.JumpToBit(Offset);
RecordData Record;
unsigned Code = DeclsCursor.ReadCode();
unsigned Idx = 0;
PCHDeclReader Reader(*this, 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, 0, SourceLocation(), 0, SourceLocation(), 0);
break;
case pch::DECL_RECORD:
D = RecordDecl::Create(*Context, TTK_Struct, 0, SourceLocation(),
0, SourceLocation(), 0);
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, TTK_Struct, 0,
SourceLocation(), 0, SourceLocation(), 0);
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_FRIEND:
assert(false && "cannot read FriendDecl");
break;
case pch::DECL_FRIEND_TEMPLATE:
assert(false && "cannot read FriendTemplateDecl");
break;
case pch::DECL_TEMPLATE:
// FIXME: Should TemplateDecl be ABSTRACT_DECL???
assert(false && "TemplateDecl should be abstract!");
break;
case pch::DECL_CLASS_TEMPLATE:
assert(false && "cannot read ClassTemplateDecl");
break;
case pch::DECL_CLASS_TEMPLATE_SPECIALIZATION:
assert(false && "cannot read ClasstemplateSpecializationDecl");
break;
case pch::DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION:
assert(false && "cannot read ClassTemplatePartialSpecializationDecl");
break;
case pch::DECL_FUNCTION_TEMPLATE:
assert(false && "cannot read FunctionTemplateDecl");
break;
case pch::DECL_TEMPLATE_TYPE_PARM:
assert(false && "cannot read TemplateTypeParmDecl");
break;
case pch::DECL_NON_TYPE_TEMPLATE_PARM:
assert(false && "cannot read NonTypeTemplateParmDecl");
break;
case pch::DECL_TEMPLATE_TEMPLATE_PARM:
assert(false && "cannot read TemplateTemplateParmDecl");
break;
case pch::DECL_STATIC_ASSERT:
assert(false && "cannot read StaticAssertDecl");
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(),
QualType());
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);
DeclContextOffsets[DC] = Offsets;
}
}
assert(Idx == Record.size());
// If we have deserialized a declaration that has a definition the
// AST consumer might need to know about, notify the consumer
// about that definition now or queue it for later.
if (isConsumerInterestedIn(D)) {
if (Consumer) {
DeclGroupRef DG(D);
Consumer->HandleTopLevelDecl(DG);
} else {
InterestingDecls.push_back(D);
}
}
return D;
}