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ASTImporter.cpp
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//===--- ASTImporter.cpp - Importing ASTs from other Contexts ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the ASTImporter class which imports AST nodes from one
// context into another context.
//
//===----------------------------------------------------------------------===//
#include "clang/AST/ASTImporter.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTDiagnostic.h"
#include "clang/AST/ASTStructuralEquivalence.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclVisitor.h"
#include "clang/AST/StmtVisitor.h"
#include "clang/AST/TypeVisitor.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "llvm/Support/MemoryBuffer.h"
#include <deque>
namespace clang {
class ASTNodeImporter : public TypeVisitor<ASTNodeImporter, QualType>,
public DeclVisitor<ASTNodeImporter, Decl *>,
public StmtVisitor<ASTNodeImporter, Stmt *> {
ASTImporter &Importer;
public:
explicit ASTNodeImporter(ASTImporter &Importer) : Importer(Importer) { }
using TypeVisitor<ASTNodeImporter, QualType>::Visit;
using DeclVisitor<ASTNodeImporter, Decl *>::Visit;
using StmtVisitor<ASTNodeImporter, Stmt *>::Visit;
// Importing types
QualType VisitType(const Type *T);
QualType VisitAtomicType(const AtomicType *T);
QualType VisitBuiltinType(const BuiltinType *T);
QualType VisitDecayedType(const DecayedType *T);
QualType VisitComplexType(const ComplexType *T);
QualType VisitPointerType(const PointerType *T);
QualType VisitBlockPointerType(const BlockPointerType *T);
QualType VisitLValueReferenceType(const LValueReferenceType *T);
QualType VisitRValueReferenceType(const RValueReferenceType *T);
QualType VisitMemberPointerType(const MemberPointerType *T);
QualType VisitConstantArrayType(const ConstantArrayType *T);
QualType VisitIncompleteArrayType(const IncompleteArrayType *T);
QualType VisitVariableArrayType(const VariableArrayType *T);
// FIXME: DependentSizedArrayType
// FIXME: DependentSizedExtVectorType
QualType VisitVectorType(const VectorType *T);
QualType VisitExtVectorType(const ExtVectorType *T);
QualType VisitFunctionNoProtoType(const FunctionNoProtoType *T);
QualType VisitFunctionProtoType(const FunctionProtoType *T);
// FIXME: UnresolvedUsingType
QualType VisitParenType(const ParenType *T);
QualType VisitTypedefType(const TypedefType *T);
QualType VisitTypeOfExprType(const TypeOfExprType *T);
// FIXME: DependentTypeOfExprType
QualType VisitTypeOfType(const TypeOfType *T);
QualType VisitDecltypeType(const DecltypeType *T);
QualType VisitUnaryTransformType(const UnaryTransformType *T);
QualType VisitAutoType(const AutoType *T);
QualType VisitInjectedClassNameType(const InjectedClassNameType *T);
// FIXME: DependentDecltypeType
QualType VisitRecordType(const RecordType *T);
QualType VisitEnumType(const EnumType *T);
QualType VisitAttributedType(const AttributedType *T);
QualType VisitTemplateTypeParmType(const TemplateTypeParmType *T);
QualType VisitSubstTemplateTypeParmType(const SubstTemplateTypeParmType *T);
QualType VisitTemplateSpecializationType(const TemplateSpecializationType *T);
QualType VisitElaboratedType(const ElaboratedType *T);
// FIXME: DependentNameType
// FIXME: DependentTemplateSpecializationType
QualType VisitObjCInterfaceType(const ObjCInterfaceType *T);
QualType VisitObjCObjectType(const ObjCObjectType *T);
QualType VisitObjCObjectPointerType(const ObjCObjectPointerType *T);
// Importing declarations
bool ImportDeclParts(NamedDecl *D, DeclContext *&DC,
DeclContext *&LexicalDC, DeclarationName &Name,
NamedDecl *&ToD, SourceLocation &Loc);
void ImportDefinitionIfNeeded(Decl *FromD, Decl *ToD = nullptr);
void ImportDeclarationNameLoc(const DeclarationNameInfo &From,
DeclarationNameInfo& To);
void ImportDeclContext(DeclContext *FromDC, bool ForceImport = false);
bool ImportCastPath(CastExpr *E, CXXCastPath &Path);
typedef DesignatedInitExpr::Designator Designator;
Designator ImportDesignator(const Designator &D);
/// \brief What we should import from the definition.
enum ImportDefinitionKind {
/// \brief Import the default subset of the definition, which might be
/// nothing (if minimal import is set) or might be everything (if minimal
/// import is not set).
IDK_Default,
/// \brief Import everything.
IDK_Everything,
/// \brief Import only the bare bones needed to establish a valid
/// DeclContext.
IDK_Basic
};
bool shouldForceImportDeclContext(ImportDefinitionKind IDK) {
return IDK == IDK_Everything ||
(IDK == IDK_Default && !Importer.isMinimalImport());
}
bool ImportDefinition(RecordDecl *From, RecordDecl *To,
ImportDefinitionKind Kind = IDK_Default);
bool ImportDefinition(VarDecl *From, VarDecl *To,
ImportDefinitionKind Kind = IDK_Default);
bool ImportDefinition(EnumDecl *From, EnumDecl *To,
ImportDefinitionKind Kind = IDK_Default);
bool ImportDefinition(ObjCInterfaceDecl *From, ObjCInterfaceDecl *To,
ImportDefinitionKind Kind = IDK_Default);
bool ImportDefinition(ObjCProtocolDecl *From, ObjCProtocolDecl *To,
ImportDefinitionKind Kind = IDK_Default);
TemplateParameterList *ImportTemplateParameterList(
TemplateParameterList *Params);
TemplateArgument ImportTemplateArgument(const TemplateArgument &From);
TemplateArgumentLoc ImportTemplateArgumentLoc(
const TemplateArgumentLoc &TALoc, bool &Error);
bool ImportTemplateArguments(const TemplateArgument *FromArgs,
unsigned NumFromArgs,
SmallVectorImpl<TemplateArgument> &ToArgs);
bool IsStructuralMatch(RecordDecl *FromRecord, RecordDecl *ToRecord,
bool Complain = true);
bool IsStructuralMatch(VarDecl *FromVar, VarDecl *ToVar,
bool Complain = true);
bool IsStructuralMatch(EnumDecl *FromEnum, EnumDecl *ToRecord);
bool IsStructuralMatch(EnumConstantDecl *FromEC, EnumConstantDecl *ToEC);
bool IsStructuralMatch(ClassTemplateDecl *From, ClassTemplateDecl *To);
bool IsStructuralMatch(VarTemplateDecl *From, VarTemplateDecl *To);
Decl *VisitDecl(Decl *D);
Decl *VisitAccessSpecDecl(AccessSpecDecl *D);
Decl *VisitStaticAssertDecl(StaticAssertDecl *D);
Decl *VisitTranslationUnitDecl(TranslationUnitDecl *D);
Decl *VisitNamespaceDecl(NamespaceDecl *D);
Decl *VisitTypedefNameDecl(TypedefNameDecl *D, bool IsAlias);
Decl *VisitTypedefDecl(TypedefDecl *D);
Decl *VisitTypeAliasDecl(TypeAliasDecl *D);
Decl *VisitLabelDecl(LabelDecl *D);
Decl *VisitEnumDecl(EnumDecl *D);
Decl *VisitRecordDecl(RecordDecl *D);
Decl *VisitEnumConstantDecl(EnumConstantDecl *D);
Decl *VisitFunctionDecl(FunctionDecl *D);
Decl *VisitCXXMethodDecl(CXXMethodDecl *D);
Decl *VisitCXXConstructorDecl(CXXConstructorDecl *D);
Decl *VisitCXXDestructorDecl(CXXDestructorDecl *D);
Decl *VisitCXXConversionDecl(CXXConversionDecl *D);
Decl *VisitFieldDecl(FieldDecl *D);
Decl *VisitIndirectFieldDecl(IndirectFieldDecl *D);
Decl *VisitFriendDecl(FriendDecl *D);
Decl *VisitObjCIvarDecl(ObjCIvarDecl *D);
Decl *VisitVarDecl(VarDecl *D);
Decl *VisitImplicitParamDecl(ImplicitParamDecl *D);
Decl *VisitParmVarDecl(ParmVarDecl *D);
Decl *VisitObjCMethodDecl(ObjCMethodDecl *D);
Decl *VisitObjCTypeParamDecl(ObjCTypeParamDecl *D);
Decl *VisitObjCCategoryDecl(ObjCCategoryDecl *D);
Decl *VisitObjCProtocolDecl(ObjCProtocolDecl *D);
Decl *VisitLinkageSpecDecl(LinkageSpecDecl *D);
Decl *VisitConstexprDecl(ConstexprDecl *D);
ObjCTypeParamList *ImportObjCTypeParamList(ObjCTypeParamList *list);
Decl *VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
Decl *VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
Decl *VisitObjCImplementationDecl(ObjCImplementationDecl *D);
Decl *VisitObjCPropertyDecl(ObjCPropertyDecl *D);
Decl *VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
Decl *VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
Decl *VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
Decl *VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
Decl *VisitClassTemplateDecl(ClassTemplateDecl *D);
Decl *VisitClassTemplateSpecializationDecl(
ClassTemplateSpecializationDecl *D);
Decl *VisitVarTemplateDecl(VarTemplateDecl *D);
Decl *VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D);
// Importing statements
DeclGroupRef ImportDeclGroup(DeclGroupRef DG);
Stmt *VisitStmt(Stmt *S);
Stmt *VisitGCCAsmStmt(GCCAsmStmt *S);
Stmt *VisitDeclStmt(DeclStmt *S);
Stmt *VisitNullStmt(NullStmt *S);
Stmt *VisitCompoundStmt(CompoundStmt *S);
Stmt *VisitCaseStmt(CaseStmt *S);
Stmt *VisitDefaultStmt(DefaultStmt *S);
Stmt *VisitLabelStmt(LabelStmt *S);
Stmt *VisitAttributedStmt(AttributedStmt *S);
Stmt *VisitIfStmt(IfStmt *S);
Stmt *VisitSwitchStmt(SwitchStmt *S);
Stmt *VisitWhileStmt(WhileStmt *S);
Stmt *VisitDoStmt(DoStmt *S);
Stmt *VisitForStmt(ForStmt *S);
Stmt *VisitGotoStmt(GotoStmt *S);
Stmt *VisitIndirectGotoStmt(IndirectGotoStmt *S);
Stmt *VisitContinueStmt(ContinueStmt *S);
Stmt *VisitBreakStmt(BreakStmt *S);
Stmt *VisitReturnStmt(ReturnStmt *S);
// FIXME: MSAsmStmt
// FIXME: SEHExceptStmt
// FIXME: SEHFinallyStmt
// FIXME: SEHTryStmt
// FIXME: SEHLeaveStmt
// FIXME: CapturedStmt
Stmt *VisitCXXCatchStmt(CXXCatchStmt *S);
Stmt *VisitCXXTryStmt(CXXTryStmt *S);
Stmt *VisitCXXForRangeStmt(CXXForRangeStmt *S);
// FIXME: MSDependentExistsStmt
Stmt *VisitObjCForCollectionStmt(ObjCForCollectionStmt *S);
Stmt *VisitObjCAtCatchStmt(ObjCAtCatchStmt *S);
Stmt *VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S);
Stmt *VisitObjCAtTryStmt(ObjCAtTryStmt *S);
Stmt *VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S);
Stmt *VisitObjCAtThrowStmt(ObjCAtThrowStmt *S);
Stmt *VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt *S);
// Importing expressions
Expr *VisitExpr(Expr *E);
Expr *VisitVAArgExpr(VAArgExpr *E);
Expr *VisitGNUNullExpr(GNUNullExpr *E);
Expr *VisitPredefinedExpr(PredefinedExpr *E);
Expr *VisitDeclRefExpr(DeclRefExpr *E);
Expr *VisitImplicitValueInitExpr(ImplicitValueInitExpr *ILE);
Expr *VisitDesignatedInitExpr(DesignatedInitExpr *E);
Expr *VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E);
Expr *VisitIntegerLiteral(IntegerLiteral *E);
Expr *VisitFloatingLiteral(FloatingLiteral *E);
Expr *VisitCharacterLiteral(CharacterLiteral *E);
Expr *VisitStringLiteral(StringLiteral *E);
Expr *VisitCompoundLiteralExpr(CompoundLiteralExpr *E);
Expr *VisitAtomicExpr(AtomicExpr *E);
Expr *VisitAddrLabelExpr(AddrLabelExpr *E);
Expr *VisitParenExpr(ParenExpr *E);
Expr *VisitParenListExpr(ParenListExpr *E);
Expr *VisitStmtExpr(StmtExpr *E);
Expr *VisitUnaryOperator(UnaryOperator *E);
Expr *VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *E);
Expr *VisitBinaryOperator(BinaryOperator *E);
Expr *VisitConditionalOperator(ConditionalOperator *E);
Expr *VisitBinaryConditionalOperator(BinaryConditionalOperator *E);
Expr *VisitOpaqueValueExpr(OpaqueValueExpr *E);
Expr *VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E);
Expr *VisitExpressionTraitExpr(ExpressionTraitExpr *E);
Expr *VisitArraySubscriptExpr(ArraySubscriptExpr *E);
Expr *VisitCompoundAssignOperator(CompoundAssignOperator *E);
Expr *VisitImplicitCastExpr(ImplicitCastExpr *E);
Expr *VisitExplicitCastExpr(ExplicitCastExpr *E);
Expr *VisitOffsetOfExpr(OffsetOfExpr *OE);
Expr *VisitCXXThrowExpr(CXXThrowExpr *E);
Expr *VisitCXXNoexceptExpr(CXXNoexceptExpr *E);
Expr *VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E);
Expr *VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E);
Expr *VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E);
Expr *VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *CE);
Expr *VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E);
Expr *VisitCXXNewExpr(CXXNewExpr *CE);
Expr *VisitCXXDeleteExpr(CXXDeleteExpr *E);
Expr *VisitCXXConstructExpr(CXXConstructExpr *E);
Expr *VisitCXXMemberCallExpr(CXXMemberCallExpr *E);
Expr *VisitExprWithCleanups(ExprWithCleanups *EWC);
Expr *VisitCXXThisExpr(CXXThisExpr *E);
Expr *VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E);
Expr *VisitMemberExpr(MemberExpr *E);
Expr *VisitCallExpr(CallExpr *E);
Expr *VisitInitListExpr(InitListExpr *E);
Expr *VisitArrayInitLoopExpr(ArrayInitLoopExpr *E);
Expr *VisitArrayInitIndexExpr(ArrayInitIndexExpr *E);
Expr *VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E);
Expr *VisitCXXNamedCastExpr(CXXNamedCastExpr *E);
Expr *VisitSubstNonTypeTemplateParmExpr(SubstNonTypeTemplateParmExpr *E);
Expr *VisitCompilerErrorExpr(CompilerErrorExpr *E);
template<typename IIter, typename OIter>
void ImportArray(IIter Ibegin, IIter Iend, OIter Obegin) {
typedef typename std::remove_reference<decltype(*Obegin)>::type ItemT;
ASTImporter &ImporterRef = Importer;
std::transform(Ibegin, Iend, Obegin,
[&ImporterRef](ItemT From) -> ItemT {
return ImporterRef.Import(From);
});
}
template<typename IIter, typename OIter>
bool ImportArrayChecked(IIter Ibegin, IIter Iend, OIter Obegin) {
typedef typename std::remove_reference<decltype(**Obegin)>::type ItemT;
ASTImporter &ImporterRef = Importer;
bool Failed = false;
std::transform(Ibegin, Iend, Obegin,
[&ImporterRef, &Failed](ItemT *From) -> ItemT * {
ItemT *To = cast_or_null<ItemT>(
ImporterRef.Import(From));
if (!To && From)
Failed = true;
return To;
});
return Failed;
}
template<typename InContainerTy, typename OutContainerTy>
bool ImportContainerChecked(const InContainerTy &InContainer,
OutContainerTy &OutContainer) {
return ImportArrayChecked(InContainer.begin(), InContainer.end(),
OutContainer.begin());
}
template<typename InContainerTy, typename OIter>
bool ImportArrayChecked(const InContainerTy &InContainer, OIter Obegin) {
return ImportArrayChecked(InContainer.begin(), InContainer.end(), Obegin);
}
};
}
//----------------------------------------------------------------------------
// Import Types
//----------------------------------------------------------------------------
using namespace clang;
QualType ASTNodeImporter::VisitType(const Type *T) {
Importer.FromDiag(SourceLocation(), diag::err_unsupported_ast_node)
<< T->getTypeClassName();
return QualType();
}
QualType ASTNodeImporter::VisitAtomicType(const AtomicType *T){
QualType UnderlyingType = Importer.Import(T->getValueType());
if(UnderlyingType.isNull())
return QualType();
return Importer.getToContext().getAtomicType(UnderlyingType);
}
QualType ASTNodeImporter::VisitBuiltinType(const BuiltinType *T) {
switch (T->getKind()) {
#define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \
case BuiltinType::Id: \
return Importer.getToContext().SingletonId;
#include "clang/Basic/OpenCLImageTypes.def"
#define SHARED_SINGLETON_TYPE(Expansion)
#define BUILTIN_TYPE(Id, SingletonId) \
case BuiltinType::Id: return Importer.getToContext().SingletonId;
#include "clang/AST/BuiltinTypes.def"
// FIXME: for Char16, Char32, and NullPtr, make sure that the "to"
// context supports C++.
// FIXME: for ObjCId, ObjCClass, and ObjCSel, make sure that the "to"
// context supports ObjC.
case BuiltinType::Char_U:
// The context we're importing from has an unsigned 'char'. If we're
// importing into a context with a signed 'char', translate to
// 'unsigned char' instead.
if (Importer.getToContext().getLangOpts().CharIsSigned)
return Importer.getToContext().UnsignedCharTy;
return Importer.getToContext().CharTy;
case BuiltinType::Char_S:
// The context we're importing from has an unsigned 'char'. If we're
// importing into a context with a signed 'char', translate to
// 'unsigned char' instead.
if (!Importer.getToContext().getLangOpts().CharIsSigned)
return Importer.getToContext().SignedCharTy;
return Importer.getToContext().CharTy;
case BuiltinType::WChar_S:
case BuiltinType::WChar_U:
// FIXME: If not in C++, shall we translate to the C equivalent of
// wchar_t?
return Importer.getToContext().WCharTy;
}
llvm_unreachable("Invalid BuiltinType Kind!");
}
QualType ASTNodeImporter::VisitDecayedType(const DecayedType *T) {
QualType OrigT = Importer.Import(T->getOriginalType());
if (OrigT.isNull())
return QualType();
return Importer.getToContext().getDecayedType(OrigT);
}
QualType ASTNodeImporter::VisitComplexType(const ComplexType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
return Importer.getToContext().getComplexType(ToElementType);
}
QualType ASTNodeImporter::VisitPointerType(const PointerType *T) {
QualType ToPointeeType = Importer.Import(T->getPointeeType());
if (ToPointeeType.isNull())
return QualType();
return Importer.getToContext().getPointerType(ToPointeeType);
}
QualType ASTNodeImporter::VisitBlockPointerType(const BlockPointerType *T) {
// FIXME: Check for blocks support in "to" context.
QualType ToPointeeType = Importer.Import(T->getPointeeType());
if (ToPointeeType.isNull())
return QualType();
return Importer.getToContext().getBlockPointerType(ToPointeeType);
}
QualType
ASTNodeImporter::VisitLValueReferenceType(const LValueReferenceType *T) {
// FIXME: Check for C++ support in "to" context.
QualType ToPointeeType = Importer.Import(T->getPointeeTypeAsWritten());
if (ToPointeeType.isNull())
return QualType();
return Importer.getToContext().getLValueReferenceType(ToPointeeType);
}
QualType
ASTNodeImporter::VisitRValueReferenceType(const RValueReferenceType *T) {
// FIXME: Check for C++0x support in "to" context.
QualType ToPointeeType = Importer.Import(T->getPointeeTypeAsWritten());
if (ToPointeeType.isNull())
return QualType();
return Importer.getToContext().getRValueReferenceType(ToPointeeType);
}
QualType ASTNodeImporter::VisitMemberPointerType(const MemberPointerType *T) {
// FIXME: Check for C++ support in "to" context.
QualType ToPointeeType = Importer.Import(T->getPointeeType());
if (ToPointeeType.isNull())
return QualType();
QualType ClassType = Importer.Import(QualType(T->getClass(), 0));
return Importer.getToContext().getMemberPointerType(ToPointeeType,
ClassType.getTypePtr());
}
QualType ASTNodeImporter::VisitConstantArrayType(const ConstantArrayType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
return Importer.getToContext().getConstantArrayType(ToElementType,
T->getSize(),
T->getSizeModifier(),
T->getIndexTypeCVRQualifiers());
}
QualType
ASTNodeImporter::VisitIncompleteArrayType(const IncompleteArrayType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
return Importer.getToContext().getIncompleteArrayType(ToElementType,
T->getSizeModifier(),
T->getIndexTypeCVRQualifiers());
}
QualType ASTNodeImporter::VisitVariableArrayType(const VariableArrayType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
Expr *Size = Importer.Import(T->getSizeExpr());
if (!Size)
return QualType();
SourceRange Brackets = Importer.Import(T->getBracketsRange());
return Importer.getToContext().getVariableArrayType(ToElementType, Size,
T->getSizeModifier(),
T->getIndexTypeCVRQualifiers(),
Brackets);
}
QualType ASTNodeImporter::VisitVectorType(const VectorType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
return Importer.getToContext().getVectorType(ToElementType,
T->getNumElements(),
T->getVectorKind());
}
QualType ASTNodeImporter::VisitExtVectorType(const ExtVectorType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
return Importer.getToContext().getExtVectorType(ToElementType,
T->getNumElements());
}
QualType
ASTNodeImporter::VisitFunctionNoProtoType(const FunctionNoProtoType *T) {
// FIXME: What happens if we're importing a function without a prototype
// into C++? Should we make it variadic?
QualType ToResultType = Importer.Import(T->getReturnType());
if (ToResultType.isNull())
return QualType();
return Importer.getToContext().getFunctionNoProtoType(ToResultType,
T->getExtInfo());
}
QualType ASTNodeImporter::VisitFunctionProtoType(const FunctionProtoType *T) {
QualType ToResultType = Importer.Import(T->getReturnType());
if (ToResultType.isNull())
return QualType();
// Import argument types
SmallVector<QualType, 4> ArgTypes;
for (const auto &A : T->param_types()) {
QualType ArgType = Importer.Import(A);
if (ArgType.isNull())
return QualType();
ArgTypes.push_back(ArgType);
}
// Import exception types
SmallVector<QualType, 4> ExceptionTypes;
for (const auto &E : T->exceptions()) {
QualType ExceptionType = Importer.Import(E);
if (ExceptionType.isNull())
return QualType();
ExceptionTypes.push_back(ExceptionType);
}
FunctionProtoType::ExtProtoInfo FromEPI = T->getExtProtoInfo();
FunctionProtoType::ExtProtoInfo ToEPI;
ToEPI.ExtInfo = FromEPI.ExtInfo;
ToEPI.Variadic = FromEPI.Variadic;
ToEPI.HasTrailingReturn = FromEPI.HasTrailingReturn;
ToEPI.TypeQuals = FromEPI.TypeQuals;
ToEPI.RefQualifier = FromEPI.RefQualifier;
ToEPI.ExceptionSpec.Type = FromEPI.ExceptionSpec.Type;
ToEPI.ExceptionSpec.Exceptions = ExceptionTypes;
ToEPI.ExceptionSpec.NoexceptExpr =
Importer.Import(FromEPI.ExceptionSpec.NoexceptExpr);
ToEPI.ExceptionSpec.SourceDecl = cast_or_null<FunctionDecl>(
Importer.Import(FromEPI.ExceptionSpec.SourceDecl));
ToEPI.ExceptionSpec.SourceTemplate = cast_or_null<FunctionDecl>(
Importer.Import(FromEPI.ExceptionSpec.SourceTemplate));
return Importer.getToContext().getFunctionType(ToResultType, ArgTypes, ToEPI);
}
QualType ASTNodeImporter::VisitParenType(const ParenType *T) {
QualType ToInnerType = Importer.Import(T->getInnerType());
if (ToInnerType.isNull())
return QualType();
return Importer.getToContext().getParenType(ToInnerType);
}
QualType ASTNodeImporter::VisitTypedefType(const TypedefType *T) {
TypedefNameDecl *ToDecl
= dyn_cast_or_null<TypedefNameDecl>(Importer.Import(T->getDecl()));
if (!ToDecl)
return QualType();
return Importer.getToContext().getTypeDeclType(ToDecl);
}
QualType ASTNodeImporter::VisitTypeOfExprType(const TypeOfExprType *T) {
Expr *ToExpr = Importer.Import(T->getUnderlyingExpr());
if (!ToExpr)
return QualType();
return Importer.getToContext().getTypeOfExprType(ToExpr);
}
QualType ASTNodeImporter::VisitTypeOfType(const TypeOfType *T) {
QualType ToUnderlyingType = Importer.Import(T->getUnderlyingType());
if (ToUnderlyingType.isNull())
return QualType();
return Importer.getToContext().getTypeOfType(ToUnderlyingType);
}
QualType ASTNodeImporter::VisitDecltypeType(const DecltypeType *T) {
// FIXME: Make sure that the "to" context supports C++0x!
Expr *ToExpr = Importer.Import(T->getUnderlyingExpr());
if (!ToExpr)
return QualType();
QualType UnderlyingType = Importer.Import(T->getUnderlyingType());
if (UnderlyingType.isNull())
return QualType();
return Importer.getToContext().getDecltypeType(ToExpr, UnderlyingType);
}
QualType ASTNodeImporter::VisitUnaryTransformType(const UnaryTransformType *T) {
QualType ToBaseType = Importer.Import(T->getBaseType());
QualType ToUnderlyingType = Importer.Import(T->getUnderlyingType());
if (ToBaseType.isNull() || ToUnderlyingType.isNull())
return QualType();
return Importer.getToContext().getUnaryTransformType(ToBaseType,
ToUnderlyingType,
T->getUTTKind());
}
QualType ASTNodeImporter::VisitAutoType(const AutoType *T) {
// FIXME: Make sure that the "to" context supports C++11!
QualType FromDeduced = T->getDeducedType();
QualType ToDeduced;
if (!FromDeduced.isNull()) {
ToDeduced = Importer.Import(FromDeduced);
if (ToDeduced.isNull())
return QualType();
}
return Importer.getToContext().getAutoType(ToDeduced, T->getKeyword(),
/*IsDependent*/false);
}
QualType ASTNodeImporter::VisitInjectedClassNameType(
const InjectedClassNameType *T) {
CXXRecordDecl *D = cast_or_null<CXXRecordDecl>(Importer.Import(T->getDecl()));
if (!D)
return QualType();
QualType InjType = Importer.Import(T->getInjectedSpecializationType());
if (InjType.isNull())
return QualType();
// FIXME: ASTContext::getInjectedClassNameType is not suitable for AST reading
// See comments in InjectedClassNameType definition for details
// return Importer.getToContext().getInjectedClassNameType(D, InjType);
enum {
TypeAlignmentInBits = 4,
TypeAlignment = 1 << TypeAlignmentInBits
};
return QualType(new (Importer.getToContext(), TypeAlignment)
InjectedClassNameType(D, InjType), 0);
}
QualType ASTNodeImporter::VisitRecordType(const RecordType *T) {
RecordDecl *ToDecl
= dyn_cast_or_null<RecordDecl>(Importer.Import(T->getDecl()));
if (!ToDecl)
return QualType();
return Importer.getToContext().getTagDeclType(ToDecl);
}
QualType ASTNodeImporter::VisitEnumType(const EnumType *T) {
EnumDecl *ToDecl
= dyn_cast_or_null<EnumDecl>(Importer.Import(T->getDecl()));
if (!ToDecl)
return QualType();
return Importer.getToContext().getTagDeclType(ToDecl);
}
QualType ASTNodeImporter::VisitAttributedType(const AttributedType *T) {
QualType FromModifiedType = T->getModifiedType();
QualType FromEquivalentType = T->getEquivalentType();
QualType ToModifiedType;
QualType ToEquivalentType;
if (!FromModifiedType.isNull()) {
ToModifiedType = Importer.Import(FromModifiedType);
if (ToModifiedType.isNull())
return QualType();
}
if (!FromEquivalentType.isNull()) {
ToEquivalentType = Importer.Import(FromEquivalentType);
if (ToEquivalentType.isNull())
return QualType();
}
return Importer.getToContext().getAttributedType(T->getAttrKind(),
ToModifiedType, ToEquivalentType);
}
QualType ASTNodeImporter::VisitTemplateTypeParmType(
const TemplateTypeParmType *T) {
TemplateTypeParmDecl *ParmDecl =
cast_or_null<TemplateTypeParmDecl>(Importer.Import(T->getDecl()));
if (!ParmDecl && T->getDecl())
return QualType();
return Importer.getToContext().getTemplateTypeParmType(
T->getDepth(), T->getIndex(), T->isParameterPack(), ParmDecl);
}
QualType ASTNodeImporter::VisitSubstTemplateTypeParmType(
const SubstTemplateTypeParmType *T) {
const TemplateTypeParmType *Replaced =
cast_or_null<TemplateTypeParmType>(Importer.Import(
QualType(T->getReplacedParameter(), 0)).getTypePtr());
if (!Replaced)
return QualType();
QualType Replacement = Importer.Import(T->getReplacementType());
if (Replacement.isNull())
return QualType();
Replacement = Replacement.getCanonicalType();
return Importer.getToContext().getSubstTemplateTypeParmType(
Replaced, Replacement);
}
QualType ASTNodeImporter::VisitTemplateSpecializationType(
const TemplateSpecializationType *T) {
TemplateName ToTemplate = Importer.Import(T->getTemplateName());
if (ToTemplate.isNull())
return QualType();
SmallVector<TemplateArgument, 2> ToTemplateArgs;
if (ImportTemplateArguments(T->getArgs(), T->getNumArgs(), ToTemplateArgs))
return QualType();
QualType ToCanonType;
if (!QualType(T, 0).isCanonical()) {
QualType FromCanonType
= Importer.getFromContext().getCanonicalType(QualType(T, 0));
ToCanonType =Importer.Import(FromCanonType);
if (ToCanonType.isNull())
return QualType();
}
return Importer.getToContext().getTemplateSpecializationType(ToTemplate,
ToTemplateArgs,
ToCanonType);
}
QualType ASTNodeImporter::VisitElaboratedType(const ElaboratedType *T) {
NestedNameSpecifier *ToQualifier = nullptr;
// Note: the qualifier in an ElaboratedType is optional.
if (T->getQualifier()) {
ToQualifier = Importer.Import(T->getQualifier());
if (!ToQualifier)
return QualType();
}
QualType ToNamedType = Importer.Import(T->getNamedType());
if (ToNamedType.isNull())
return QualType();
return Importer.getToContext().getElaboratedType(T->getKeyword(),
ToQualifier, ToNamedType);
}
QualType ASTNodeImporter::VisitObjCInterfaceType(const ObjCInterfaceType *T) {
ObjCInterfaceDecl *Class
= dyn_cast_or_null<ObjCInterfaceDecl>(Importer.Import(T->getDecl()));
if (!Class)
return QualType();
return Importer.getToContext().getObjCInterfaceType(Class);
}
QualType ASTNodeImporter::VisitObjCObjectType(const ObjCObjectType *T) {
QualType ToBaseType = Importer.Import(T->getBaseType());
if (ToBaseType.isNull())
return QualType();
SmallVector<QualType, 4> TypeArgs;
for (auto TypeArg : T->getTypeArgsAsWritten()) {
QualType ImportedTypeArg = Importer.Import(TypeArg);
if (ImportedTypeArg.isNull())
return QualType();
TypeArgs.push_back(ImportedTypeArg);
}
SmallVector<ObjCProtocolDecl *, 4> Protocols;
for (auto *P : T->quals()) {
ObjCProtocolDecl *Protocol
= dyn_cast_or_null<ObjCProtocolDecl>(Importer.Import(P));
if (!Protocol)
return QualType();
Protocols.push_back(Protocol);
}
return Importer.getToContext().getObjCObjectType(ToBaseType, TypeArgs,
Protocols,
T->isKindOfTypeAsWritten());
}
QualType
ASTNodeImporter::VisitObjCObjectPointerType(const ObjCObjectPointerType *T) {
QualType ToPointeeType = Importer.Import(T->getPointeeType());
if (ToPointeeType.isNull())
return QualType();
return Importer.getToContext().getObjCObjectPointerType(ToPointeeType);
}
//----------------------------------------------------------------------------
// Import Declarations
//----------------------------------------------------------------------------
bool ASTNodeImporter::ImportDeclParts(NamedDecl *D, DeclContext *&DC,
DeclContext *&LexicalDC,
DeclarationName &Name,
NamedDecl *&ToD,
SourceLocation &Loc) {
// Import the context of this declaration.
DC = Importer.ImportContext(D->getDeclContext());
if (!DC)
return true;
LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return true;
}
// Import the name of this declaration.
Name = Importer.Import(D->getDeclName());
if (D->getDeclName() && !Name)
return true;
// Import the location of this declaration.
Loc = Importer.Import(D->getLocation());
ToD = cast_or_null<NamedDecl>(Importer.GetAlreadyImportedOrNull(D));
return false;
}
void ASTNodeImporter::ImportDefinitionIfNeeded(Decl *FromD, Decl *ToD) {
if (!FromD)
return;
if (!ToD) {
ToD = Importer.Import(FromD);
if (!ToD)
return;
}
if (RecordDecl *FromRecord = dyn_cast<RecordDecl>(FromD)) {
if (RecordDecl *ToRecord = cast_or_null<RecordDecl>(ToD)) {
if (FromRecord->getDefinition() && FromRecord->isCompleteDefinition() && !ToRecord->getDefinition()) {
ImportDefinition(FromRecord, ToRecord);
}
}
return;
}
if (EnumDecl *FromEnum = dyn_cast<EnumDecl>(FromD)) {
if (EnumDecl *ToEnum = cast_or_null<EnumDecl>(ToD)) {
if (FromEnum->getDefinition() && !ToEnum->getDefinition()) {
ImportDefinition(FromEnum, ToEnum);
}
}
return;
}
}
void
ASTNodeImporter::ImportDeclarationNameLoc(const DeclarationNameInfo &From,
DeclarationNameInfo& To) {
// NOTE: To.Name and To.Loc are already imported.
// We only have to import To.LocInfo.
switch (To.getName().getNameKind()) {
case DeclarationName::Identifier:
case DeclarationName::ObjCZeroArgSelector:
case DeclarationName::ObjCOneArgSelector:
case DeclarationName::ObjCMultiArgSelector:
case DeclarationName::CXXUsingDirective:
case DeclarationName::CXXDeductionGuideName:
return;
case DeclarationName::CXXOperatorName: {
SourceRange Range = From.getCXXOperatorNameRange();
To.setCXXOperatorNameRange(Importer.Import(Range));
return;
}
case DeclarationName::CXXLiteralOperatorName: {
SourceLocation Loc = From.getCXXLiteralOperatorNameLoc();
To.setCXXLiteralOperatorNameLoc(Importer.Import(Loc));
return;
}
case DeclarationName::CXXConstructorName:
case DeclarationName::CXXDestructorName:
case DeclarationName::CXXConversionFunctionName: {
TypeSourceInfo *FromTInfo = From.getNamedTypeInfo();
To.setNamedTypeInfo(Importer.Import(FromTInfo));
return;
}
case DeclarationName::CXXIdExprName:
SourceRange Range = From.getCXXOperatorNameRange();
To.setCXXIdExprNameRange(Importer.Import(Range));
}
llvm_unreachable("Unknown name kind.");
}
void ASTNodeImporter::ImportDeclContext(DeclContext *FromDC, bool ForceImport) {
if (Importer.isMinimalImport() && !ForceImport) {
Importer.ImportContext(FromDC);
return;
}
for (auto *From : FromDC->decls())
Importer.Import(From);
}
bool ASTNodeImporter::ImportDefinition(RecordDecl *From, RecordDecl *To,
ImportDefinitionKind Kind) {
if (To->getDefinition() || To->isBeingDefined()) {
if (Kind == IDK_Everything)
ImportDeclContext(From, /*ForceImport=*/true);
return false;
}
To->startDefinition();
// Add base classes.
if (CXXRecordDecl *ToCXX = dyn_cast<CXXRecordDecl>(To)) {
CXXRecordDecl *FromCXX = cast<CXXRecordDecl>(From);
struct CXXRecordDecl::DefinitionData &ToData = ToCXX->data();
struct CXXRecordDecl::DefinitionData &FromData = FromCXX->data();
ToData.UserDeclaredConstructor = FromData.UserDeclaredConstructor;
ToData.UserDeclaredSpecialMembers = FromData.UserDeclaredSpecialMembers;
ToData.Aggregate = FromData.Aggregate;
ToData.PlainOldData = FromData.PlainOldData;
ToData.Empty = FromData.Empty;
ToData.Polymorphic = FromData.Polymorphic;
ToData.Abstract = FromData.Abstract;
ToData.IsStandardLayout = FromData.IsStandardLayout;
ToData.HasNoNonEmptyBases = FromData.HasNoNonEmptyBases;
ToData.HasPrivateFields = FromData.HasPrivateFields;
ToData.HasProtectedFields = FromData.HasProtectedFields;
ToData.HasPublicFields = FromData.HasPublicFields;
ToData.HasMutableFields = FromData.HasMutableFields;
ToData.HasVariantMembers = FromData.HasVariantMembers;
ToData.HasOnlyCMembers = FromData.HasOnlyCMembers;
ToData.HasInClassInitializer = FromData.HasInClassInitializer;
ToData.HasUninitializedReferenceMember
= FromData.HasUninitializedReferenceMember;
ToData.HasUninitializedFields = FromData.HasUninitializedFields;
ToData.HasInheritedConstructor = FromData.HasInheritedConstructor;
ToData.HasInheritedAssignment = FromData.HasInheritedAssignment;
ToData.NeedOverloadResolutionForMoveConstructor
= FromData.NeedOverloadResolutionForMoveConstructor;
ToData.NeedOverloadResolutionForMoveAssignment
= FromData.NeedOverloadResolutionForMoveAssignment;
ToData.NeedOverloadResolutionForDestructor
= FromData.NeedOverloadResolutionForDestructor;
ToData.DefaultedMoveConstructorIsDeleted
= FromData.DefaultedMoveConstructorIsDeleted;
ToData.DefaultedMoveAssignmentIsDeleted
= FromData.DefaultedMoveAssignmentIsDeleted;
ToData.DefaultedDestructorIsDeleted = FromData.DefaultedDestructorIsDeleted;
ToData.HasTrivialSpecialMembers = FromData.HasTrivialSpecialMembers;
ToData.HasIrrelevantDestructor = FromData.HasIrrelevantDestructor;
ToData.HasConstexprNonCopyMoveConstructor
= FromData.HasConstexprNonCopyMoveConstructor;
ToData.HasDefaultedDefaultConstructor
= FromData.HasDefaultedDefaultConstructor;
ToData.DefaultedDefaultConstructorIsConstexpr
= FromData.DefaultedDefaultConstructorIsConstexpr;
ToData.HasConstexprDefaultConstructor
= FromData.HasConstexprDefaultConstructor;
ToData.HasNonLiteralTypeFieldsOrBases
= FromData.HasNonLiteralTypeFieldsOrBases;
// ComputedVisibleConversions not imported.
ToData.UserProvidedDefaultConstructor
= FromData.UserProvidedDefaultConstructor;
ToData.DeclaredSpecialMembers = FromData.DeclaredSpecialMembers;
ToData.ImplicitCopyConstructorCanHaveConstParamForVBase
= FromData.ImplicitCopyConstructorCanHaveConstParamForVBase;
ToData.ImplicitCopyConstructorCanHaveConstParamForNonVBase
= FromData.ImplicitCopyConstructorCanHaveConstParamForNonVBase;
ToData.ImplicitCopyAssignmentHasConstParam
= FromData.ImplicitCopyAssignmentHasConstParam;
ToData.HasDeclaredCopyConstructorWithConstParam
= FromData.HasDeclaredCopyConstructorWithConstParam;
ToData.HasDeclaredCopyAssignmentWithConstParam
= FromData.HasDeclaredCopyAssignmentWithConstParam;
ToData.IsLambda = FromData.IsLambda;
SmallVector<CXXBaseSpecifier *, 4> Bases;