microsoft
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clang-1
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split decl reading out to its own PCHReaderDecl.cpp file. 

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70187 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-04-27 05:27:42 +00:00
Родитель 4c6f952b70
Коммит 698f925ded
5 изменённых файлов: 634 добавлений и 585 удалений
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4
clang.xcodeproj/project.pbxproj
Просмотреть файл

@ -173,6 +173,7 @@
DECB6D650F9AE26600F5FBC7 /* JumpDiagnostics.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DECB6D640F9AE26600F5FBC7 /* JumpDiagnostics.cpp */; };
DECB6F070F9D93A800F5FBC7 /* InitPreprocessor.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DECB6F060F9D93A800F5FBC7 /* InitPreprocessor.cpp */; };
DECB77130FA5752300F5FBC7 /* PCHReaderStmt.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DECB77120FA5752300F5FBC7 /* PCHReaderStmt.cpp */; };
DECB77790FA579B000F5FBC7 /* PCHReaderDecl.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DECB77780FA579B000F5FBC7 /* PCHReaderDecl.cpp */; };
DED626C90AE0C065001E80A4 /* TargetInfo.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DED626C80AE0C065001E80A4 /* TargetInfo.cpp */; };
DED62ABB0AE2EDF1001E80A4 /* Decl.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DED62ABA0AE2EDF1001E80A4 /* Decl.cpp */; };
DED676D10B6C786700AAD4A3 /* Builtins.def in CopyFiles */ = {isa = PBXBuildFile; fileRef = DED676D00B6C786700AAD4A3 /* Builtins.def */; };
@ -585,6 +586,7 @@
DECB734E0FA3ED8400F5FBC7 /* StmtObjC.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = StmtObjC.h; path = clang/AST/StmtObjC.h; sourceTree = "<group>"; };
DECB73550FA3EE5A00F5FBC7 /* StmtCXX.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = StmtCXX.h; path = clang/AST/StmtCXX.h; sourceTree = "<group>"; };
DECB77120FA5752300F5FBC7 /* PCHReaderStmt.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = PCHReaderStmt.cpp; path = lib/Frontend/PCHReaderStmt.cpp; sourceTree = "<group>"; };
DECB77780FA579B000F5FBC7 /* PCHReaderDecl.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = PCHReaderDecl.cpp; path = lib/Frontend/PCHReaderDecl.cpp; sourceTree = "<group>"; };
DED626C80AE0C065001E80A4 /* TargetInfo.cpp */ = {isa = PBXFileReference; fileEncoding = 30; indentWidth = 2; lastKnownFileType = sourcecode.cpp.cpp; path = TargetInfo.cpp; sourceTree = "<group>"; tabWidth = 2; };
DED62ABA0AE2EDF1001E80A4 /* Decl.cpp */ = {isa = PBXFileReference; fileEncoding = 30; indentWidth = 2; lastKnownFileType = sourcecode.cpp.cpp; name = Decl.cpp; path = lib/AST/Decl.cpp; sourceTree = "<group>"; tabWidth = 2; usesTabs = 0; };
DED676D00B6C786700AAD4A3 /* Builtins.def */ = {isa = PBXFileReference; fileEncoding = 30; indentWidth = 2; lastKnownFileType = text; name = Builtins.def; path = clang/AST/Builtins.def; sourceTree = "<group>"; tabWidth = 2; };
@ -810,6 +812,7 @@
DECB6F060F9D93A800F5FBC7 /* InitPreprocessor.cpp */,
352246E30F5C6BE000D0D279 /* ManagerRegistry.cpp */,
DEF165740F8FB3510098507F /* PCHReader.cpp */,
DECB77780FA579B000F5FBC7 /* PCHReaderDecl.cpp */,
DECB77120FA5752300F5FBC7 /* PCHReaderStmt.cpp */,
DEF165700F8FB34D0098507F /* PCHWriter.cpp */,
352246E40F5C6BE000D0D279 /* PlistDiagnostics.cpp */,
@ -1665,6 +1668,7 @@
DECB6D650F9AE26600F5FBC7 /* JumpDiagnostics.cpp in Sources */,
DECB6F070F9D93A800F5FBC7 /* InitPreprocessor.cpp in Sources */,
DECB77130FA5752300F5FBC7 /* PCHReaderStmt.cpp in Sources */,
DECB77790FA579B000F5FBC7 /* PCHReaderDecl.cpp in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};

1
include/clang/Frontend/PCHReader.h
Просмотреть файл

@ -10,6 +10,7 @@
// This file defines the PCHReader class, which reads a precompiled header.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_FRONTEND_PCH_READER_H
#define LLVM_CLANG_FRONTEND_PCH_READER_H

1
lib/Frontend/CMakeLists.txt
Просмотреть файл

@ -8,6 +8,7 @@ add_clang_library(clangFrontend
TextDiagnosticBuffer.cpp
TextDiagnosticPrinter.cpp
PCHReader.cpp
PCHReaderDecl.cpp
PCHReaderStmt.cpp
PCHWriter.cpp
PlistDiagnostics.cpp

585
lib/Frontend/PCHReader.cpp
Просмотреть файл

@ -16,9 +16,6 @@
#include "../Sema/Sema.h" // FIXME: move Sema headers elsewhere
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclGroup.h"
#include "clang/AST/DeclVisitor.h"
#include "clang/AST/Expr.h"
#include "clang/AST/Type.h"
#include "clang/Lex/MacroInfo.h"
@ -34,7 +31,6 @@
#include "llvm/Support/MemoryBuffer.h"
#include <algorithm>
#include <cstdio>
using namespace clang;
namespace {
@ -54,368 +50,6 @@ namespace {
};
}
//===----------------------------------------------------------------------===//
// Declaration deserialization
//===----------------------------------------------------------------------===//
namespace {
class VISIBILITY_HIDDEN 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 VisitTypeDecl(TypeDecl *TD);
void VisitTypedefDecl(TypedefDecl *TD);
void VisitTagDecl(TagDecl *TD);
void VisitEnumDecl(EnumDecl *ED);
void VisitRecordDecl(RecordDecl *RD);
void VisitValueDecl(ValueDecl *VD);
void VisitEnumConstantDecl(EnumConstantDecl *ECD);
void VisitFunctionDecl(FunctionDecl *FD);
void VisitFieldDecl(FieldDecl *FD);
void VisitVarDecl(VarDecl *VD);
void VisitImplicitParamDecl(ImplicitParamDecl *PD);
void VisitParmVarDecl(ParmVarDecl *PD);
void VisitOriginalParmVarDecl(OriginalParmVarDecl *PD);
void VisitFileScopeAsmDecl(FileScopeAsmDecl *AD);
void VisitBlockDecl(BlockDecl *BD);
std::pair<uint64_t, uint64_t> VisitDeclContext(DeclContext *DC);
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->setAccess((AccessSpecifier)Record[Idx++]);
}
void PCHDeclReader::VisitTranslationUnitDecl(TranslationUnitDecl *TU) {
VisitDecl(TU);
}
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);
TD->setUnderlyingType(Reader.GetType(Record[Idx + 1]));
TD->setTypeForDecl(Reader.GetType(Record[Idx]).getTypePtr());
Idx += 2;
}
void PCHDeclReader::VisitTagDecl(TagDecl *TD) {
VisitTypeDecl(TD);
TD->setTagKind((TagDecl::TagKind)Record[Idx++]);
TD->setDefinition(Record[Idx++]);
TD->setTypedefForAnonDecl(
cast_or_null<TypedefDecl>(Reader.GetDecl(Record[Idx++])));
}
void PCHDeclReader::VisitEnumDecl(EnumDecl *ED) {
VisitTagDecl(ED);
ED->setIntegerType(Reader.GetType(Record[Idx++]));
}
void PCHDeclReader::VisitRecordDecl(RecordDecl *RD) {
VisitTagDecl(RD);
RD->setHasFlexibleArrayMember(Record[Idx++]);
RD->setAnonymousStructOrUnion(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());
ECD->setInitVal(Reader.ReadAPSInt(Record, Idx));
}
void PCHDeclReader::VisitFunctionDecl(FunctionDecl *FD) {
VisitValueDecl(FD);
if (Record[Idx++])
FD->setLazyBody(Reader.getStream().GetCurrentBitNo());
FD->setPreviousDeclaration(
cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++])));
FD->setStorageClass((FunctionDecl::StorageClass)Record[Idx++]);
FD->setInline(Record[Idx++]);
FD->setC99InlineDefinition(Record[Idx++]);
FD->setVirtual(Record[Idx++]);
FD->setPure(Record[Idx++]);
FD->setInheritedPrototype(Record[Idx++]);
FD->setHasPrototype(Record[Idx++]);
FD->setDeleted(Record[Idx++]);
FD->setTypeSpecStartLoc(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++])));
FD->setParams(Reader.getContext(), &Params[0], 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(cast<CompoundStmt>(Reader.ReadStmt()));
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->setResultType(Reader.GetType(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[0], NumParams);
}
void PCHDeclReader::VisitObjCContainerDecl(ObjCContainerDecl *CD) {
VisitNamedDecl(CD);
CD->setAtEndLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
}
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++])));
ID->setProtocolList(&Protocols[0], NumProtocols, 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->setIVarList(&IVars[0], NumIvars, Reader.getContext());
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->setAtEndLoc(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++])));
PD->setProtocolList(&ProtoRefs[0], NumProtoRefs, 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++])));
CD->setClassList(Reader.getContext(), &ClassRefs[0], 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++])));
FPD->setProtocolList(&ProtoRefs[0], NumProtoRefs, 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++])));
CD->setProtocolList(&ProtoRefs[0], NumProtoRefs, Reader.getContext());
CD->setNextClassCategory(cast_or_null<ObjCCategoryDecl>(Reader.GetDecl(Record[Idx++])));
CD->setLocEnd(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->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) {
VisitNamedDecl(D);
D->setClassInterface(
cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
D->setLocEnd(SourceLocation::getFromRawEncoding(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++])));
}
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++])));
}
void PCHDeclReader::VisitFieldDecl(FieldDecl *FD) {
VisitValueDecl(FD);
FD->setMutable(Record[Idx++]);
if (Record[Idx++])
FD->setBitWidth(Reader.ReadExpr());
}
void PCHDeclReader::VisitVarDecl(VarDecl *VD) {
VisitValueDecl(VD);
VD->setStorageClass((VarDecl::StorageClass)Record[Idx++]);
VD->setThreadSpecified(Record[Idx++]);
VD->setCXXDirectInitializer(Record[Idx++]);
VD->setDeclaredInCondition(Record[Idx++]);
VD->setPreviousDeclaration(
cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
VD->setTypeSpecStartLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
if (Record[Idx++])
VD->setInit(Reader.ReadExpr());
}
void PCHDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) {
VisitVarDecl(PD);
}
void PCHDeclReader::VisitParmVarDecl(ParmVarDecl *PD) {
VisitVarDecl(PD);
PD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
// FIXME: default argument (C++ only)
}
void PCHDeclReader::VisitOriginalParmVarDecl(OriginalParmVarDecl *PD) {
VisitParmVarDecl(PD);
PD->setOriginalType(Reader.GetType(Record[Idx++]));
}
void PCHDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) {
VisitDecl(AD);
AD->setAsmString(cast<StringLiteral>(Reader.ReadExpr()));
}
void PCHDeclReader::VisitBlockDecl(BlockDecl *BD) {
VisitDecl(BD);
BD->setBody(cast_or_null<CompoundStmt>(Reader.ReadStmt()));
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(Reader.getContext(), &Params[0], NumParams);
}
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);
}
//===----------------------------------------------------------------------===//
// PCH reader implementation
//===----------------------------------------------------------------------===//
@ -1633,225 +1267,6 @@ QualType PCHReader::ReadTypeRecord(uint64_t Offset) {
return QualType();
}
/// \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 (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(Stream);
Decl *D = 0;
Stream.JumpToBit(Offset);
RecordData Record;
unsigned Code = Stream.ReadCode();
unsigned Idx = 0;
PCHDeclReader Reader(*this, Record, Idx);
switch ((pch::DeclCode)Stream.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, QualType());
break;
}
case pch::DECL_ENUM: {
D = EnumDecl::Create(Context, 0, SourceLocation(), 0, 0);
break;
}
case pch::DECL_RECORD: {
D = RecordDecl::Create(Context, TagDecl::TK_struct, 0, SourceLocation(),
0, 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());
break;
}
case pch::DECL_OBJC_METHOD: {
D = ObjCMethodDecl::Create(Context, SourceLocation(), SourceLocation(),
Selector(), QualType(), 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(),
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(), 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, 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,
false);
break;
}
case pch::DECL_VAR:
D = VarDecl::Create(Context, 0, SourceLocation(), 0, QualType(),
VarDecl::None, SourceLocation());
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(),
VarDecl::None, 0);
break;
}
case pch::DECL_ORIGINAL_PARM_VAR: {
D = OriginalParmVarDecl::Create(Context, 0, SourceLocation(), 0,
QualType(), QualType(), 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");
if (D) {
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;
}
QualType PCHReader::GetType(pch::TypeID ID) {
unsigned Quals = ID & 0x07;

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lib/Frontend/PCHReaderDecl.cpp Normal file
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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/Expr.h"
using namespace clang;
// FIXME: Temporarily cloned from PCHReader.cpp.
namespace {
/// \brief Helper class that saves the current stream position and
/// then restores it when destroyed.
struct SavedStreamPosition {
explicit SavedStreamPosition(llvm::BitstreamCursor &Cursor)
: Cursor(Cursor), Offset(Cursor.GetCurrentBitNo()) { }
~SavedStreamPosition() {
Cursor.JumpToBit(Offset);
}
private:
llvm::BitstreamCursor &Cursor;
uint64_t Offset;
};
}
//===----------------------------------------------------------------------===//
// 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 VisitTypeDecl(TypeDecl *TD);
void VisitTypedefDecl(TypedefDecl *TD);
void VisitTagDecl(TagDecl *TD);
void VisitEnumDecl(EnumDecl *ED);
void VisitRecordDecl(RecordDecl *RD);
void VisitValueDecl(ValueDecl *VD);
void VisitEnumConstantDecl(EnumConstantDecl *ECD);
void VisitFunctionDecl(FunctionDecl *FD);
void VisitFieldDecl(FieldDecl *FD);
void VisitVarDecl(VarDecl *VD);
void VisitImplicitParamDecl(ImplicitParamDecl *PD);
void VisitParmVarDecl(ParmVarDecl *PD);
void VisitOriginalParmVarDecl(OriginalParmVarDecl *PD);
void VisitFileScopeAsmDecl(FileScopeAsmDecl *AD);
void VisitBlockDecl(BlockDecl *BD);
std::pair<uint64_t, uint64_t> VisitDeclContext(DeclContext *DC);
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->setAccess((AccessSpecifier)Record[Idx++]);
}
void PCHDeclReader::VisitTranslationUnitDecl(TranslationUnitDecl *TU) {
VisitDecl(TU);
}
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);
TD->setUnderlyingType(Reader.GetType(Record[Idx + 1]));
TD->setTypeForDecl(Reader.GetType(Record[Idx]).getTypePtr());
Idx += 2;
}
void PCHDeclReader::VisitTagDecl(TagDecl *TD) {
VisitTypeDecl(TD);
TD->setTagKind((TagDecl::TagKind)Record[Idx++]);
TD->setDefinition(Record[Idx++]);
TD->setTypedefForAnonDecl(
cast_or_null<TypedefDecl>(Reader.GetDecl(Record[Idx++])));
}
void PCHDeclReader::VisitEnumDecl(EnumDecl *ED) {
VisitTagDecl(ED);
ED->setIntegerType(Reader.GetType(Record[Idx++]));
}
void PCHDeclReader::VisitRecordDecl(RecordDecl *RD) {
VisitTagDecl(RD);
RD->setHasFlexibleArrayMember(Record[Idx++]);
RD->setAnonymousStructOrUnion(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());
ECD->setInitVal(Reader.ReadAPSInt(Record, Idx));
}
void PCHDeclReader::VisitFunctionDecl(FunctionDecl *FD) {
VisitValueDecl(FD);
if (Record[Idx++])
FD->setLazyBody(Reader.getStream().GetCurrentBitNo());
FD->setPreviousDeclaration(
cast_or_null<FunctionDecl>(Reader.GetDecl(Record[Idx++])));
FD->setStorageClass((FunctionDecl::StorageClass)Record[Idx++]);
FD->setInline(Record[Idx++]);
FD->setC99InlineDefinition(Record[Idx++]);
FD->setVirtual(Record[Idx++]);
FD->setPure(Record[Idx++]);
FD->setInheritedPrototype(Record[Idx++]);
FD->setHasPrototype(Record[Idx++]);
FD->setDeleted(Record[Idx++]);
FD->setTypeSpecStartLoc(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++])));
FD->setParams(Reader.getContext(), &Params[0], 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());
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->setResultType(Reader.GetType(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[0], NumParams);
}
void PCHDeclReader::VisitObjCContainerDecl(ObjCContainerDecl *CD) {
VisitNamedDecl(CD);
CD->setAtEndLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
}
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++])));
ID->setProtocolList(&Protocols[0], NumProtocols, 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->setIVarList(&IVars[0], NumIvars, Reader.getContext());
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->setAtEndLoc(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++])));
PD->setProtocolList(&ProtoRefs[0], NumProtoRefs, 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++])));
CD->setClassList(Reader.getContext(), &ClassRefs[0], 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++])));
FPD->setProtocolList(&ProtoRefs[0], NumProtoRefs, 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++])));
CD->setProtocolList(&ProtoRefs[0], NumProtoRefs, Reader.getContext());
CD->setNextClassCategory(cast_or_null<ObjCCategoryDecl>(Reader.GetDecl(Record[Idx++])));
CD->setLocEnd(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->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) {
VisitNamedDecl(D);
D->setClassInterface(
cast_or_null<ObjCInterfaceDecl>(Reader.GetDecl(Record[Idx++])));
D->setLocEnd(SourceLocation::getFromRawEncoding(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++])));
}
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++])));
}
void PCHDeclReader::VisitFieldDecl(FieldDecl *FD) {
VisitValueDecl(FD);
FD->setMutable(Record[Idx++]);
if (Record[Idx++])
FD->setBitWidth(Reader.ReadExpr());
}
void PCHDeclReader::VisitVarDecl(VarDecl *VD) {
VisitValueDecl(VD);
VD->setStorageClass((VarDecl::StorageClass)Record[Idx++]);
VD->setThreadSpecified(Record[Idx++]);
VD->setCXXDirectInitializer(Record[Idx++]);
VD->setDeclaredInCondition(Record[Idx++]);
VD->setPreviousDeclaration(
cast_or_null<VarDecl>(Reader.GetDecl(Record[Idx++])));
VD->setTypeSpecStartLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
if (Record[Idx++])
VD->setInit(Reader.ReadExpr());
}
void PCHDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) {
VisitVarDecl(PD);
}
void PCHDeclReader::VisitParmVarDecl(ParmVarDecl *PD) {
VisitVarDecl(PD);
PD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record[Idx++]);
// FIXME: default argument (C++ only)
}
void PCHDeclReader::VisitOriginalParmVarDecl(OriginalParmVarDecl *PD) {
VisitParmVarDecl(PD);
PD->setOriginalType(Reader.GetType(Record[Idx++]));
}
void PCHDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) {
VisitDecl(AD);
AD->setAsmString(cast<StringLiteral>(Reader.ReadExpr()));
}
void PCHDeclReader::VisitBlockDecl(BlockDecl *BD) {
VisitDecl(BD);
BD->setBody(cast_or_null<CompoundStmt>(Reader.ReadStmt()));
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(Reader.getContext(), &Params[0], NumParams);
}
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);
}
//===----------------------------------------------------------------------===//
// 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 (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(Stream);
Decl *D = 0;
Stream.JumpToBit(Offset);
RecordData Record;
unsigned Code = Stream.ReadCode();
unsigned Idx = 0;
PCHDeclReader Reader(*this, Record, Idx);
switch ((pch::DeclCode)Stream.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, QualType());
break;
}
case pch::DECL_ENUM: {
D = EnumDecl::Create(Context, 0, SourceLocation(), 0, 0);
break;
}
case pch::DECL_RECORD: {
D = RecordDecl::Create(Context, TagDecl::TK_struct, 0, SourceLocation(),
0, 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());
break;
}
case pch::DECL_OBJC_METHOD: {
D = ObjCMethodDecl::Create(Context, SourceLocation(), SourceLocation(),
Selector(), QualType(), 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(),
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(), 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, 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,
false);
break;
}
case pch::DECL_VAR:
D = VarDecl::Create(Context, 0, SourceLocation(), 0, QualType(),
VarDecl::None, SourceLocation());
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(),
VarDecl::None, 0);
break;
}
case pch::DECL_ORIGINAL_PARM_VAR: {
D = OriginalParmVarDecl::Create(Context, 0, SourceLocation(), 0,
QualType(), QualType(), 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");
if (D) {
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;
}