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llvm-project/clang/lib/AST/ASTImporter.cpp
Sean Callanan 9092d4795d [ASTImporter] Improve handling of incomplete types 
ASTImporter has some bugs when it's importing types 
that themselves come from an ExternalASTSource. This 
is exposed particularly in the behavior when 
comparing complete TagDecls with forward 
declarations. This patch does several things:

- Adds a test case making sure that conflicting 
  forward-declarations are resolved correctly;
- Extends the clang-import-test harness to test 
  two-level importing, so that we make sure we 
  complete types when necessary; and
- Fixes a few bugs I found this way. Failure to 
  complete types was one; however, I also discovered 
  that complete RecordDecls aren't properly added to 
  the redecls chain for existing forward 
  declarations.

llvm-svn: 302975
2017-05-13 00:46:33 +00:00

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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);
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);
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;
}
}
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;
for (const auto &Base1 : FromCXX->bases()) {
QualType T = Importer.Import(Base1.getType());
if (T.isNull())
return true;
SourceLocation EllipsisLoc;
if (Base1.isPackExpansion())
EllipsisLoc = Importer.Import(Base1.getEllipsisLoc());
// Ensure that we have a definition for the base.
ImportDefinitionIfNeeded(Base1.getType()->getAsCXXRecordDecl());
Bases.push_back(
new (Importer.getToContext())
CXXBaseSpecifier(Importer.Import(Base1.getSourceRange()),
Base1.isVirtual(),
Base1.isBaseOfClass(),
Base1.getAccessSpecifierAsWritten(),
Importer.Import(Base1.getTypeSourceInfo()),
EllipsisLoc));
}
if (!Bases.empty())
ToCXX->setBases(Bases.data(), Bases.size());
}
if (shouldForceImportDeclContext(Kind))
ImportDeclContext(From, /*ForceImport=*/true);
To->completeDefinition();
return false;
}
bool ASTNodeImporter::ImportDefinition(VarDecl *From, VarDecl *To,
ImportDefinitionKind Kind) {
if (To->getAnyInitializer())
return false;
// FIXME: Can we really import any initializer? Alternatively, we could force
// ourselves to import every declaration of a variable and then only use
// getInit() here.
To->setInit(Importer.Import(const_cast<Expr *>(From->getAnyInitializer())));
// FIXME: Other bits to merge?
return false;
}
bool ASTNodeImporter::ImportDefinition(EnumDecl *From, EnumDecl *To,
ImportDefinitionKind Kind) {
if (To->getDefinition() || To->isBeingDefined()) {
if (Kind == IDK_Everything)
ImportDeclContext(From, /*ForceImport=*/true);
return false;
}
To->startDefinition();
QualType T = Importer.Import(Importer.getFromContext().getTypeDeclType(From));
if (T.isNull())
return true;
QualType ToPromotionType = Importer.Import(From->getPromotionType());
if (ToPromotionType.isNull())
return true;
if (shouldForceImportDeclContext(Kind))
ImportDeclContext(From, /*ForceImport=*/true);
// FIXME: we might need to merge the number of positive or negative bits
// if the enumerator lists don't match.
To->completeDefinition(T, ToPromotionType,
From->getNumPositiveBits(),
From->getNumNegativeBits());
return false;
}
TemplateParameterList *ASTNodeImporter::ImportTemplateParameterList(
TemplateParameterList *Params) {
SmallVector<NamedDecl *, 4> ToParams(Params->size());
if (ImportContainerChecked(*Params, ToParams))
return nullptr;
Expr *ToRequiresClause;
if (Expr *const R = Params->getRequiresClause()) {
ToRequiresClause = Importer.Import(R);
if (!ToRequiresClause)
return nullptr;
} else {
ToRequiresClause = nullptr;
}
return TemplateParameterList::Create(Importer.getToContext(),
Importer.Import(Params->getTemplateLoc()),
Importer.Import(Params->getLAngleLoc()),
ToParams,
Importer.Import(Params->getRAngleLoc()),
ToRequiresClause);
}
TemplateArgument
ASTNodeImporter::ImportTemplateArgument(const TemplateArgument &From) {
switch (From.getKind()) {
case TemplateArgument::Null:
return TemplateArgument();
case TemplateArgument::Type: {
QualType ToType = Importer.Import(From.getAsType());
if (ToType.isNull())
return TemplateArgument();
return TemplateArgument(ToType);
}
case TemplateArgument::Integral: {
QualType ToType = Importer.Import(From.getIntegralType());
if (ToType.isNull())
return TemplateArgument();
return TemplateArgument(From, ToType);
}
case TemplateArgument::Declaration: {
ValueDecl *To = cast_or_null<ValueDecl>(Importer.Import(From.getAsDecl()));
QualType ToType = Importer.Import(From.getParamTypeForDecl());
if (!To || ToType.isNull())
return TemplateArgument();
return TemplateArgument(To, ToType);
}
case TemplateArgument::NullPtr: {
QualType ToType = Importer.Import(From.getNullPtrType());
if (ToType.isNull())
return TemplateArgument();
return TemplateArgument(ToType, /*isNullPtr*/true);
}
case TemplateArgument::Template: {
TemplateName ToTemplate = Importer.Import(From.getAsTemplate());
if (ToTemplate.isNull())
return TemplateArgument();
return TemplateArgument(ToTemplate);
}
case TemplateArgument::TemplateExpansion: {
TemplateName ToTemplate
= Importer.Import(From.getAsTemplateOrTemplatePattern());
if (ToTemplate.isNull())
return TemplateArgument();
return TemplateArgument(ToTemplate, From.getNumTemplateExpansions());
}
case TemplateArgument::Expression:
if (Expr *ToExpr = Importer.Import(From.getAsExpr()))
return TemplateArgument(ToExpr);
return TemplateArgument();
case TemplateArgument::Pack: {
SmallVector<TemplateArgument, 2> ToPack;
ToPack.reserve(From.pack_size());
if (ImportTemplateArguments(From.pack_begin(), From.pack_size(), ToPack))
return TemplateArgument();
return TemplateArgument(
llvm::makeArrayRef(ToPack).copy(Importer.getToContext()));
}
}
llvm_unreachable("Invalid template argument kind");
}
TemplateArgumentLoc ASTNodeImporter::ImportTemplateArgumentLoc(
const TemplateArgumentLoc &TALoc, bool &Error) {
Error = false;
TemplateArgument Arg = ImportTemplateArgument(TALoc.getArgument());
TemplateArgumentLocInfo FromInfo = TALoc.getLocInfo();
TemplateArgumentLocInfo ToInfo;
if (Arg.getKind() == TemplateArgument::Expression) {
Expr *E = Importer.Import(FromInfo.getAsExpr());
ToInfo = TemplateArgumentLocInfo(E);
if (!E)
Error = true;
} else if (Arg.getKind() == TemplateArgument::Type) {
if (TypeSourceInfo *TSI = Importer.Import(FromInfo.getAsTypeSourceInfo()))
ToInfo = TemplateArgumentLocInfo(TSI);
else
Error = true;
} else {
ToInfo = TemplateArgumentLocInfo(
Importer.Import(FromInfo.getTemplateQualifierLoc()),
Importer.Import(FromInfo.getTemplateNameLoc()),
Importer.Import(FromInfo.getTemplateEllipsisLoc()));
}
return TemplateArgumentLoc(Arg, ToInfo);
}
bool ASTNodeImporter::ImportTemplateArguments(const TemplateArgument *FromArgs,
unsigned NumFromArgs,
SmallVectorImpl<TemplateArgument> &ToArgs) {
for (unsigned I = 0; I != NumFromArgs; ++I) {
TemplateArgument To = ImportTemplateArgument(FromArgs[I]);
if (To.isNull() && !FromArgs[I].isNull())
return true;
ToArgs.push_back(To);
}
return false;
}
bool ASTNodeImporter::IsStructuralMatch(RecordDecl *FromRecord,
RecordDecl *ToRecord, bool Complain) {
// Eliminate a potential failure point where we attempt to re-import
// something we're trying to import while completing ToRecord.
Decl *ToOrigin = Importer.GetOriginalDecl(ToRecord);
if (ToOrigin) {
RecordDecl *ToOriginRecord = dyn_cast<RecordDecl>(ToOrigin);
if (ToOriginRecord)
ToRecord = ToOriginRecord;
}
StructuralEquivalenceContext Ctx(Importer.getFromContext(),
ToRecord->getASTContext(),
Importer.getNonEquivalentDecls(),
false, Complain);
return Ctx.IsStructurallyEquivalent(FromRecord, ToRecord);
}
bool ASTNodeImporter::IsStructuralMatch(VarDecl *FromVar, VarDecl *ToVar,
bool Complain) {
StructuralEquivalenceContext Ctx(
Importer.getFromContext(), Importer.getToContext(),
Importer.getNonEquivalentDecls(), false, Complain);
return Ctx.IsStructurallyEquivalent(FromVar, ToVar);
}
bool ASTNodeImporter::IsStructuralMatch(EnumDecl *FromEnum, EnumDecl *ToEnum) {
StructuralEquivalenceContext Ctx(Importer.getFromContext(),
Importer.getToContext(),
Importer.getNonEquivalentDecls());
return Ctx.IsStructurallyEquivalent(FromEnum, ToEnum);
}
bool ASTNodeImporter::IsStructuralMatch(EnumConstantDecl *FromEC,
EnumConstantDecl *ToEC)
{
const llvm::APSInt &FromVal = FromEC->getInitVal();
const llvm::APSInt &ToVal = ToEC->getInitVal();
return FromVal.isSigned() == ToVal.isSigned() &&
FromVal.getBitWidth() == ToVal.getBitWidth() &&
FromVal == ToVal;
}
bool ASTNodeImporter::IsStructuralMatch(ClassTemplateDecl *From,
ClassTemplateDecl *To) {
StructuralEquivalenceContext Ctx(Importer.getFromContext(),
Importer.getToContext(),
Importer.getNonEquivalentDecls());
return Ctx.IsStructurallyEquivalent(From, To);
}
bool ASTNodeImporter::IsStructuralMatch(VarTemplateDecl *From,
VarTemplateDecl *To) {
StructuralEquivalenceContext Ctx(Importer.getFromContext(),
Importer.getToContext(),
Importer.getNonEquivalentDecls());
return Ctx.IsStructurallyEquivalent(From, To);
}
Decl *ASTNodeImporter::VisitDecl(Decl *D) {
Importer.FromDiag(D->getLocation(), diag::err_unsupported_ast_node)
<< D->getDeclKindName();
return nullptr;
}
Decl *ASTNodeImporter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
TranslationUnitDecl *ToD =
Importer.getToContext().getTranslationUnitDecl();
Importer.Imported(D, ToD);
return ToD;
}
Decl *ASTNodeImporter::VisitAccessSpecDecl(AccessSpecDecl *D) {
SourceLocation Loc = Importer.Import(D->getLocation());
SourceLocation ColonLoc = Importer.Import(D->getColonLoc());
// Import the context of this declaration.
DeclContext *DC = Importer.ImportContext(D->getDeclContext());
if (!DC)
return nullptr;
AccessSpecDecl *accessSpecDecl
= AccessSpecDecl::Create(Importer.getToContext(), D->getAccess(),
DC, Loc, ColonLoc);
if (!accessSpecDecl)
return nullptr;
// Lexical DeclContext and Semantic DeclContext
// is always the same for the accessSpec.
accessSpecDecl->setLexicalDeclContext(DC);
DC->addDeclInternal(accessSpecDecl);
return accessSpecDecl;
}
Decl *ASTNodeImporter::VisitStaticAssertDecl(StaticAssertDecl *D) {
DeclContext *DC = Importer.ImportContext(D->getDeclContext());
if (!DC)
return nullptr;
DeclContext *LexicalDC = DC;
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
Expr *AssertExpr = Importer.Import(D->getAssertExpr());
if (!AssertExpr)
return nullptr;
StringLiteral *FromMsg = D->getMessage();
StringLiteral *ToMsg = cast_or_null<StringLiteral>(Importer.Import(FromMsg));
if (!ToMsg && FromMsg)
return nullptr;
StaticAssertDecl *ToD = StaticAssertDecl::Create(
Importer.getToContext(), DC, Loc, AssertExpr, ToMsg,
Importer.Import(D->getRParenLoc()), D->isFailed());
ToD->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(ToD);
Importer.Imported(D, ToD);
return ToD;
}
Decl *ASTNodeImporter::VisitNamespaceDecl(NamespaceDecl *D) {
// Import the major distinguishing characteristics of this namespace.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
NamespaceDecl *MergeWithNamespace = nullptr;
if (!Name) {
// This is an anonymous namespace. Adopt an existing anonymous
// namespace if we can.
// FIXME: Not testable.
if (TranslationUnitDecl *TU = dyn_cast<TranslationUnitDecl>(DC))
MergeWithNamespace = TU->getAnonymousNamespace();
else
MergeWithNamespace = cast<NamespaceDecl>(DC)->getAnonymousNamespace();
} else {
SmallVector<NamedDecl *, 4> ConflictingDecls;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(Decl::IDNS_Namespace))
continue;
if (NamespaceDecl *FoundNS = dyn_cast<NamespaceDecl>(FoundDecls[I])) {
MergeWithNamespace = FoundNS;
ConflictingDecls.clear();
break;
}
ConflictingDecls.push_back(FoundDecls[I]);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, Decl::IDNS_Namespace,
ConflictingDecls.data(),
ConflictingDecls.size());
}
}
// Create the "to" namespace, if needed.
NamespaceDecl *ToNamespace = MergeWithNamespace;
if (!ToNamespace) {
ToNamespace = NamespaceDecl::Create(Importer.getToContext(), DC,
D->isInline(),
Importer.Import(D->getLocStart()),
Loc, Name.getAsIdentifierInfo(),
/*PrevDecl=*/nullptr);
ToNamespace->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(ToNamespace);
// If this is an anonymous namespace, register it as the anonymous
// namespace within its context.
if (!Name) {
if (TranslationUnitDecl *TU = dyn_cast<TranslationUnitDecl>(DC))
TU->setAnonymousNamespace(ToNamespace);
else
cast<NamespaceDecl>(DC)->setAnonymousNamespace(ToNamespace);
}
}
Importer.Imported(D, ToNamespace);
ImportDeclContext(D);
return ToNamespace;
}
Decl *ASTNodeImporter::VisitTypedefNameDecl(TypedefNameDecl *D, bool IsAlias) {
// Import the major distinguishing characteristics of this typedef.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// If this typedef is not in block scope, determine whether we've
// seen a typedef with the same name (that we can merge with) or any
// other entity by that name (which name lookup could conflict with).
if (!DC->isFunctionOrMethod()) {
SmallVector<NamedDecl *, 4> ConflictingDecls;
unsigned IDNS = Decl::IDNS_Ordinary;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
continue;
if (TypedefNameDecl *FoundTypedef =
dyn_cast<TypedefNameDecl>(FoundDecls[I])) {
if (Importer.IsStructurallyEquivalent(D->getUnderlyingType(),
FoundTypedef->getUnderlyingType()))
return Importer.Imported(D, FoundTypedef);
}
ConflictingDecls.push_back(FoundDecls[I]);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
if (!Name)
return nullptr;
}
}
// Import the underlying type of this typedef;
QualType T = Importer.Import(D->getUnderlyingType());
if (T.isNull())
return nullptr;
// Create the new typedef node.
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
SourceLocation StartL = Importer.Import(D->getLocStart());
TypedefNameDecl *ToTypedef;
if (IsAlias)
ToTypedef = TypeAliasDecl::Create(Importer.getToContext(), DC,
StartL, Loc,
Name.getAsIdentifierInfo(),
TInfo);
else
ToTypedef = TypedefDecl::Create(Importer.getToContext(), DC,
StartL, Loc,
Name.getAsIdentifierInfo(),
TInfo);
ToTypedef->setAccess(D->getAccess());
ToTypedef->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToTypedef);
LexicalDC->addDeclInternal(ToTypedef);
return ToTypedef;
}
Decl *ASTNodeImporter::VisitTypedefDecl(TypedefDecl *D) {
return VisitTypedefNameDecl(D, /*IsAlias=*/false);
}
Decl *ASTNodeImporter::VisitTypeAliasDecl(TypeAliasDecl *D) {
return VisitTypedefNameDecl(D, /*IsAlias=*/true);
}
Decl *ASTNodeImporter::VisitLabelDecl(LabelDecl *D) {
// Import the major distinguishing characteristics of this label.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
assert(LexicalDC->isFunctionOrMethod());
LabelDecl *ToLabel = D->isGnuLocal()
? LabelDecl::Create(Importer.getToContext(),
DC, Importer.Import(D->getLocation()),
Name.getAsIdentifierInfo(),
Importer.Import(D->getLocStart()))
: LabelDecl::Create(Importer.getToContext(),
DC, Importer.Import(D->getLocation()),
Name.getAsIdentifierInfo());
Importer.Imported(D, ToLabel);
LabelStmt *Label = cast_or_null<LabelStmt>(Importer.Import(D->getStmt()));
if (!Label)
return nullptr;
ToLabel->setStmt(Label);
ToLabel->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(ToLabel);
return ToLabel;
}
Decl *ASTNodeImporter::VisitEnumDecl(EnumDecl *D) {
// Import the major distinguishing characteristics of this enum.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// Figure out what enum name we're looking for.
unsigned IDNS = Decl::IDNS_Tag;
DeclarationName SearchName = Name;
if (!SearchName && D->getTypedefNameForAnonDecl()) {
SearchName = Importer.Import(D->getTypedefNameForAnonDecl()->getDeclName());
IDNS = Decl::IDNS_Ordinary;
} else if (Importer.getToContext().getLangOpts().CPlusPlus)
IDNS |= Decl::IDNS_Ordinary;
// We may already have an enum of the same name; try to find and match it.
if (!DC->isFunctionOrMethod() && SearchName) {
SmallVector<NamedDecl *, 4> ConflictingDecls;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(SearchName, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
continue;
Decl *Found = FoundDecls[I];
if (TypedefNameDecl *Typedef = dyn_cast<TypedefNameDecl>(Found)) {
if (const TagType *Tag = Typedef->getUnderlyingType()->getAs<TagType>())
Found = Tag->getDecl();
}
if (EnumDecl *FoundEnum = dyn_cast<EnumDecl>(Found)) {
if (IsStructuralMatch(D, FoundEnum))
return Importer.Imported(D, FoundEnum);
}
ConflictingDecls.push_back(FoundDecls[I]);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
}
}
// Create the enum declaration.
EnumDecl *D2 = EnumDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getLocStart()),
Loc, Name.getAsIdentifierInfo(), nullptr,
D->isScoped(), D->isScopedUsingClassTag(),
D->isFixed());
// Import the qualifier, if any.
D2->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
D2->setAccess(D->getAccess());
D2->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, D2);
LexicalDC->addDeclInternal(D2);
// Import the integer type.
QualType ToIntegerType = Importer.Import(D->getIntegerType());
if (ToIntegerType.isNull())
return nullptr;
D2->setIntegerType(ToIntegerType);
// Import the definition
if (D->isCompleteDefinition() && ImportDefinition(D, D2))
return nullptr;
return D2;
}
Decl *ASTNodeImporter::VisitRecordDecl(RecordDecl *D) {
// If this record has a definition in the translation unit we're coming from,
// but this particular declaration is not that definition, import the
// definition and map to that.
TagDecl *Definition = D->getDefinition();
if (Definition && Definition != D) {
Decl *ImportedDef = Importer.Import(Definition);
if (!ImportedDef)
return nullptr;
return Importer.Imported(D, ImportedDef);
}
// Import the major distinguishing characteristics of this record.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// Figure out what structure name we're looking for.
unsigned IDNS = Decl::IDNS_Tag;
DeclarationName SearchName = Name;
if (!SearchName && D->getTypedefNameForAnonDecl()) {
SearchName = Importer.Import(D->getTypedefNameForAnonDecl()->getDeclName());
IDNS = Decl::IDNS_Ordinary;
} else if (Importer.getToContext().getLangOpts().CPlusPlus)
IDNS |= Decl::IDNS_Ordinary;
// We may already have a record of the same name; try to find and match it.
RecordDecl *AdoptDecl = nullptr;
RecordDecl *PrevDecl = nullptr;
if (!DC->isFunctionOrMethod()) {
SmallVector<NamedDecl *, 4> ConflictingDecls;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(SearchName, FoundDecls);
if (!FoundDecls.empty()) {
// We're going to have to compare D against potentially conflicting Decls, so complete it.
if (D->hasExternalLexicalStorage() && !D->isCompleteDefinition())
D->getASTContext().getExternalSource()->CompleteType(D);
}
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
continue;
Decl *Found = FoundDecls[I];
if (TypedefNameDecl *Typedef = dyn_cast<TypedefNameDecl>(Found)) {
if (const TagType *Tag = Typedef->getUnderlyingType()->getAs<TagType>())
Found = Tag->getDecl();
}
if (RecordDecl *FoundRecord = dyn_cast<RecordDecl>(Found)) {
if (D->isAnonymousStructOrUnion() &&
FoundRecord->isAnonymousStructOrUnion()) {
// If both anonymous structs/unions are in a record context, make sure
// they occur in the same location in the context records.
if (Optional<unsigned> Index1 =
StructuralEquivalenceContext::findUntaggedStructOrUnionIndex(
D)) {
if (Optional<unsigned> Index2 = StructuralEquivalenceContext::
findUntaggedStructOrUnionIndex(FoundRecord)) {
if (*Index1 != *Index2)
continue;
}
}
}
PrevDecl = FoundRecord;
if (RecordDecl *FoundDef = FoundRecord->getDefinition()) {
if ((SearchName && !D->isCompleteDefinition())
|| (D->isCompleteDefinition() &&
D->isAnonymousStructOrUnion()
== FoundDef->isAnonymousStructOrUnion() &&
IsStructuralMatch(D, FoundDef))) {
// The record types structurally match, or the "from" translation
// unit only had a forward declaration anyway; call it the same
// function.
// FIXME: For C++, we should also merge methods here.
return Importer.Imported(D, FoundDef);
}
} else if (!D->isCompleteDefinition()) {
// We have a forward declaration of this type, so adopt that forward
// declaration rather than building a new one.
// If one or both can be completed from external storage then try one
// last time to complete and compare them before doing this.
if (FoundRecord->hasExternalLexicalStorage() &&
!FoundRecord->isCompleteDefinition())
FoundRecord->getASTContext().getExternalSource()->CompleteType(FoundRecord);
if (D->hasExternalLexicalStorage())
D->getASTContext().getExternalSource()->CompleteType(D);
if (FoundRecord->isCompleteDefinition() &&
D->isCompleteDefinition() &&
!IsStructuralMatch(D, FoundRecord))
continue;
AdoptDecl = FoundRecord;
continue;
} else if (!SearchName) {
continue;
}
}
ConflictingDecls.push_back(FoundDecls[I]);
}
if (!ConflictingDecls.empty() && SearchName) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
}
}
// Create the record declaration.
RecordDecl *D2 = AdoptDecl;
SourceLocation StartLoc = Importer.Import(D->getLocStart());
if (!D2) {
CXXRecordDecl *D2CXX = nullptr;
if (CXXRecordDecl *DCXX = llvm::dyn_cast<CXXRecordDecl>(D)) {
if (DCXX->isLambda()) {
TypeSourceInfo *TInfo = Importer.Import(DCXX->getLambdaTypeInfo());
D2CXX = CXXRecordDecl::CreateLambda(Importer.getToContext(),
DC, TInfo, Loc,
DCXX->isDependentLambda(),
DCXX->isGenericLambda(),
DCXX->getLambdaCaptureDefault());
Decl *CDecl = Importer.Import(DCXX->getLambdaContextDecl());
if (DCXX->getLambdaContextDecl() && !CDecl)
return nullptr;
D2CXX->setLambdaMangling(DCXX->getLambdaManglingNumber(), CDecl);
} else if (DCXX->isInjectedClassName()) {
// We have to be careful to do a similar dance to the one in
// Sema::ActOnStartCXXMemberDeclarations
CXXRecordDecl *const PrevDecl = nullptr;
const bool DelayTypeCreation = true;
D2CXX = CXXRecordDecl::Create(
Importer.getToContext(), D->getTagKind(), DC, StartLoc, Loc,
Name.getAsIdentifierInfo(), PrevDecl, DelayTypeCreation);
Importer.getToContext().getTypeDeclType(
D2CXX, llvm::dyn_cast<CXXRecordDecl>(DC));
} else {
D2CXX = CXXRecordDecl::Create(Importer.getToContext(),
D->getTagKind(),
DC, StartLoc, Loc,
Name.getAsIdentifierInfo());
}
D2 = D2CXX;
D2->setAccess(D->getAccess());
} else {
D2 = RecordDecl::Create(Importer.getToContext(), D->getTagKind(),
DC, StartLoc, Loc, Name.getAsIdentifierInfo());
}
D2->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
D2->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(D2);
if (D->isAnonymousStructOrUnion())
D2->setAnonymousStructOrUnion(true);
if (PrevDecl) {
// FIXME: do this for all Redeclarables, not just RecordDecls.
D2->setPreviousDecl(PrevDecl);
}
}
Importer.Imported(D, D2);
if (D->isCompleteDefinition() && ImportDefinition(D, D2, IDK_Default))
return nullptr;
return D2;
}
Decl *ASTNodeImporter::VisitEnumConstantDecl(EnumConstantDecl *D) {
// Import the major distinguishing characteristics of this enumerator.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
// Determine whether there are any other declarations with the same name and
// in the same context.
if (!LexicalDC->isFunctionOrMethod()) {
SmallVector<NamedDecl *, 4> ConflictingDecls;
unsigned IDNS = Decl::IDNS_Ordinary;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
continue;
if (EnumConstantDecl *FoundEnumConstant
= dyn_cast<EnumConstantDecl>(FoundDecls[I])) {
if (IsStructuralMatch(D, FoundEnumConstant))
return Importer.Imported(D, FoundEnumConstant);
}
ConflictingDecls.push_back(FoundDecls[I]);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
if (!Name)
return nullptr;
}
}
Expr *Init = Importer.Import(D->getInitExpr());
if (D->getInitExpr() && !Init)
return nullptr;
EnumConstantDecl *ToEnumerator
= EnumConstantDecl::Create(Importer.getToContext(), cast<EnumDecl>(DC), Loc,
Name.getAsIdentifierInfo(), T,
Init, D->getInitVal());
ToEnumerator->setAccess(D->getAccess());
ToEnumerator->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToEnumerator);
LexicalDC->addDeclInternal(ToEnumerator);
return ToEnumerator;
}
Decl *ASTNodeImporter::VisitFunctionDecl(FunctionDecl *D) {
// Import the major distinguishing characteristics of this function.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// Try to find a function in our own ("to") context with the same name, same
// type, and in the same context as the function we're importing.
if (!LexicalDC->isFunctionOrMethod()) {
SmallVector<NamedDecl *, 4> ConflictingDecls;
unsigned IDNS = Decl::IDNS_Ordinary;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
continue;
if (FunctionDecl *FoundFunction = dyn_cast<FunctionDecl>(FoundDecls[I])) {
if (FoundFunction->hasExternalFormalLinkage() &&
D->hasExternalFormalLinkage()) {
if (Importer.IsStructurallyEquivalent(D->getType(),
FoundFunction->getType())) {
// FIXME: Actually try to merge the body and other attributes.
return Importer.Imported(D, FoundFunction);
}
// FIXME: Check for overloading more carefully, e.g., by boosting
// Sema::IsOverload out to the AST library.
// Function overloading is okay in C++.
if (Importer.getToContext().getLangOpts().CPlusPlus)
continue;
// Complain about inconsistent function types.
Importer.ToDiag(Loc, diag::err_odr_function_type_inconsistent)
<< Name << D->getType() << FoundFunction->getType();
Importer.ToDiag(FoundFunction->getLocation(),
diag::note_odr_value_here)
<< FoundFunction->getType();
}
}
ConflictingDecls.push_back(FoundDecls[I]);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
if (!Name)
return nullptr;
}
}
DeclarationNameInfo NameInfo(Name, Loc);
// Import additional name location/type info.
ImportDeclarationNameLoc(D->getNameInfo(), NameInfo);
QualType FromTy = D->getType();
bool usedDifferentExceptionSpec = false;
if (const FunctionProtoType *
FromFPT = D->getType()->getAs<FunctionProtoType>()) {
FunctionProtoType::ExtProtoInfo FromEPI = FromFPT->getExtProtoInfo();
// FunctionProtoType::ExtProtoInfo's ExceptionSpecDecl can point to the
// FunctionDecl that we are importing the FunctionProtoType for.
// To avoid an infinite recursion when importing, create the FunctionDecl
// with a simplified function type and update it afterwards.
if (FromEPI.ExceptionSpec.SourceDecl ||
FromEPI.ExceptionSpec.SourceTemplate ||
FromEPI.ExceptionSpec.NoexceptExpr) {
FunctionProtoType::ExtProtoInfo DefaultEPI;
FromTy = Importer.getFromContext().getFunctionType(
FromFPT->getReturnType(), FromFPT->getParamTypes(), DefaultEPI);
usedDifferentExceptionSpec = true;
}
}
// Import the type.
QualType T = Importer.Import(FromTy);
if (T.isNull())
return nullptr;
// Import the function parameters.
SmallVector<ParmVarDecl *, 8> Parameters;
for (auto P : D->parameters()) {
ParmVarDecl *ToP = cast_or_null<ParmVarDecl>(Importer.Import(P));
if (!ToP)
return nullptr;
Parameters.push_back(ToP);
}
// Create the imported function.
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
FunctionDecl *ToFunction = nullptr;
SourceLocation InnerLocStart = Importer.Import(D->getInnerLocStart());
if (CXXConstructorDecl *FromConstructor = dyn_cast<CXXConstructorDecl>(D)) {
ToFunction = CXXConstructorDecl::Create(Importer.getToContext(),
cast<CXXRecordDecl>(DC),
InnerLocStart,
NameInfo, T, TInfo,
FromConstructor->isExplicit(),
D->isInlineSpecified(),
D->isImplicit(),
D->isConstexpr());
if (unsigned NumInitializers = FromConstructor->getNumCtorInitializers()) {
SmallVector<CXXCtorInitializer *, 4> CtorInitializers;
for (CXXCtorInitializer *I : FromConstructor->inits()) {
CXXCtorInitializer *ToI =
cast_or_null<CXXCtorInitializer>(Importer.Import(I));
if (!ToI && I)
return nullptr;
CtorInitializers.push_back(ToI);
}
CXXCtorInitializer **Memory =
new (Importer.getToContext()) CXXCtorInitializer *[NumInitializers];
std::copy(CtorInitializers.begin(), CtorInitializers.end(), Memory);
CXXConstructorDecl *ToCtor = llvm::cast<CXXConstructorDecl>(ToFunction);
ToCtor->setCtorInitializers(Memory);
ToCtor->setNumCtorInitializers(NumInitializers);
}
} else if (isa<CXXDestructorDecl>(D)) {
ToFunction = CXXDestructorDecl::Create(Importer.getToContext(),
cast<CXXRecordDecl>(DC),
InnerLocStart,
NameInfo, T, TInfo,
D->isInlineSpecified(),
D->isImplicit());
} else if (CXXConversionDecl *FromConversion
= dyn_cast<CXXConversionDecl>(D)) {
ToFunction = CXXConversionDecl::Create(Importer.getToContext(),
cast<CXXRecordDecl>(DC),
InnerLocStart,
NameInfo, T, TInfo,
D->isInlineSpecified(),
FromConversion->isExplicit(),
D->isConstexpr(),
Importer.Import(D->getLocEnd()));
} else if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(D)) {
ToFunction = CXXMethodDecl::Create(Importer.getToContext(),
cast<CXXRecordDecl>(DC),
InnerLocStart,
NameInfo, T, TInfo,
Method->getStorageClass(),
Method->isInlineSpecified(),
D->isConstexpr(),
Importer.Import(D->getLocEnd()));
} else {
ToFunction = FunctionDecl::Create(Importer.getToContext(), DC,
InnerLocStart,
NameInfo, T, TInfo, D->getStorageClass(),
D->isInlineSpecified(),
D->hasWrittenPrototype(),
D->isConstexpr());
}
// Import the qualifier, if any.
ToFunction->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
ToFunction->setAccess(D->getAccess());
ToFunction->setLexicalDeclContext(LexicalDC);
ToFunction->setVirtualAsWritten(D->isVirtualAsWritten());
ToFunction->setTrivial(D->isTrivial());
ToFunction->setPure(D->isPure());
Importer.Imported(D, ToFunction);
// Set the parameters.
for (unsigned I = 0, N = Parameters.size(); I != N; ++I) {
Parameters[I]->setOwningFunction(ToFunction);
ToFunction->addDeclInternal(Parameters[I]);
}
ToFunction->setParams(Parameters);
if (usedDifferentExceptionSpec) {
// Update FunctionProtoType::ExtProtoInfo.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
ToFunction->setType(T);
}
// Import the body, if any.
if (Stmt *FromBody = D->getBody()) {
if (Stmt *ToBody = Importer.Import(FromBody)) {
ToFunction->setBody(ToBody);
}
}
// FIXME: Other bits to merge?
// Add this function to the lexical context.
LexicalDC->addDeclInternal(ToFunction);
return ToFunction;
}
Decl *ASTNodeImporter::VisitCXXMethodDecl(CXXMethodDecl *D) {
return VisitFunctionDecl(D);
}
Decl *ASTNodeImporter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
return VisitCXXMethodDecl(D);
}
Decl *ASTNodeImporter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
return VisitCXXMethodDecl(D);
}
Decl *ASTNodeImporter::VisitCXXConversionDecl(CXXConversionDecl *D) {
return VisitCXXMethodDecl(D);
}
static unsigned getFieldIndex(Decl *F) {
RecordDecl *Owner = dyn_cast<RecordDecl>(F->getDeclContext());
if (!Owner)
return 0;
unsigned Index = 1;
for (const auto *D : Owner->noload_decls()) {
if (D == F)
return Index;
if (isa<FieldDecl>(*D) || isa<IndirectFieldDecl>(*D))
++Index;
}
return Index;
}
Decl *ASTNodeImporter::VisitFieldDecl(FieldDecl *D) {
// Import the major distinguishing characteristics of a variable.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// Determine whether we've already imported this field.
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (FieldDecl *FoundField = dyn_cast<FieldDecl>(FoundDecls[I])) {
// For anonymous fields, match up by index.
if (!Name && getFieldIndex(D) != getFieldIndex(FoundField))
continue;
if (Importer.IsStructurallyEquivalent(D->getType(),
FoundField->getType())) {
Importer.Imported(D, FoundField);
return FoundField;
}
Importer.ToDiag(Loc, diag::err_odr_field_type_inconsistent)
<< Name << D->getType() << FoundField->getType();
Importer.ToDiag(FoundField->getLocation(), diag::note_odr_value_here)
<< FoundField->getType();
return nullptr;
}
}
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
Expr *BitWidth = Importer.Import(D->getBitWidth());
if (!BitWidth && D->getBitWidth())
return nullptr;
FieldDecl *ToField = FieldDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getInnerLocStart()),
Loc, Name.getAsIdentifierInfo(),
T, TInfo, BitWidth, D->isMutable(),
D->getInClassInitStyle());
ToField->setAccess(D->getAccess());
ToField->setLexicalDeclContext(LexicalDC);
if (Expr *FromInitializer = D->getInClassInitializer()) {
Expr *ToInitializer = Importer.Import(FromInitializer);
if (ToInitializer)
ToField->setInClassInitializer(ToInitializer);
else
return nullptr;
}
ToField->setImplicit(D->isImplicit());
Importer.Imported(D, ToField);
LexicalDC->addDeclInternal(ToField);
return ToField;
}
Decl *ASTNodeImporter::VisitIndirectFieldDecl(IndirectFieldDecl *D) {
// Import the major distinguishing characteristics of a variable.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// Determine whether we've already imported this field.
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (IndirectFieldDecl *FoundField
= dyn_cast<IndirectFieldDecl>(FoundDecls[I])) {
// For anonymous indirect fields, match up by index.
if (!Name && getFieldIndex(D) != getFieldIndex(FoundField))
continue;
if (Importer.IsStructurallyEquivalent(D->getType(),
FoundField->getType(),
!Name.isEmpty())) {
Importer.Imported(D, FoundField);
return FoundField;
}
// If there are more anonymous fields to check, continue.
if (!Name && I < N-1)
continue;
Importer.ToDiag(Loc, diag::err_odr_field_type_inconsistent)
<< Name << D->getType() << FoundField->getType();
Importer.ToDiag(FoundField->getLocation(), diag::note_odr_value_here)
<< FoundField->getType();
return nullptr;
}
}
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
NamedDecl **NamedChain =
new (Importer.getToContext())NamedDecl*[D->getChainingSize()];
unsigned i = 0;
for (auto *PI : D->chain()) {
Decl *D = Importer.Import(PI);
if (!D)
return nullptr;
NamedChain[i++] = cast<NamedDecl>(D);
}
IndirectFieldDecl *ToIndirectField = IndirectFieldDecl::Create(
Importer.getToContext(), DC, Loc, Name.getAsIdentifierInfo(), T,
{NamedChain, D->getChainingSize()});
for (const auto *Attr : D->attrs())
ToIndirectField->addAttr(Attr->clone(Importer.getToContext()));
ToIndirectField->setAccess(D->getAccess());
ToIndirectField->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToIndirectField);
LexicalDC->addDeclInternal(ToIndirectField);
return ToIndirectField;
}
Decl *ASTNodeImporter::VisitFriendDecl(FriendDecl *D) {
// Import the major distinguishing characteristics of a declaration.
DeclContext *DC = Importer.ImportContext(D->getDeclContext());
DeclContext *LexicalDC = D->getDeclContext() == D->getLexicalDeclContext()
? DC : Importer.ImportContext(D->getLexicalDeclContext());
if (!DC || !LexicalDC)
return nullptr;
// Determine whether we've already imported this decl.
// FriendDecl is not a NamedDecl so we cannot use localUncachedLookup.
auto *RD = cast<CXXRecordDecl>(DC);
FriendDecl *ImportedFriend = RD->getFirstFriend();
StructuralEquivalenceContext Context(
Importer.getFromContext(), Importer.getToContext(),
Importer.getNonEquivalentDecls(), false, false);
while (ImportedFriend) {
if (D->getFriendDecl() && ImportedFriend->getFriendDecl()) {
if (Context.IsStructurallyEquivalent(D->getFriendDecl(),
ImportedFriend->getFriendDecl()))
return Importer.Imported(D, ImportedFriend);
} else if (D->getFriendType() && ImportedFriend->getFriendType()) {
if (Importer.IsStructurallyEquivalent(
D->getFriendType()->getType(),
ImportedFriend->getFriendType()->getType(), true))
return Importer.Imported(D, ImportedFriend);
}
ImportedFriend = ImportedFriend->getNextFriend();
}
// Not found. Create it.
FriendDecl::FriendUnion ToFU;
if (NamedDecl *FriendD = D->getFriendDecl())
ToFU = cast_or_null<NamedDecl>(Importer.Import(FriendD));
else
ToFU = Importer.Import(D->getFriendType());
if (!ToFU)
return nullptr;
SmallVector<TemplateParameterList *, 1> ToTPLists(D->NumTPLists);
TemplateParameterList **FromTPLists =
D->getTrailingObjects<TemplateParameterList *>();
for (unsigned I = 0; I < D->NumTPLists; I++) {
TemplateParameterList *List = ImportTemplateParameterList(FromTPLists[I]);
if (!List)
return nullptr;
ToTPLists[I] = List;
}
FriendDecl *FrD = FriendDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getLocation()),
ToFU, Importer.Import(D->getFriendLoc()),
ToTPLists);
Importer.Imported(D, FrD);
RD->pushFriendDecl(FrD);
FrD->setAccess(D->getAccess());
FrD->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(FrD);
return FrD;
}
Decl *ASTNodeImporter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
// Import the major distinguishing characteristics of an ivar.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// Determine whether we've already imported this ivar
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (ObjCIvarDecl *FoundIvar = dyn_cast<ObjCIvarDecl>(FoundDecls[I])) {
if (Importer.IsStructurallyEquivalent(D->getType(),
FoundIvar->getType())) {
Importer.Imported(D, FoundIvar);
return FoundIvar;
}
Importer.ToDiag(Loc, diag::err_odr_ivar_type_inconsistent)
<< Name << D->getType() << FoundIvar->getType();
Importer.ToDiag(FoundIvar->getLocation(), diag::note_odr_value_here)
<< FoundIvar->getType();
return nullptr;
}
}
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
Expr *BitWidth = Importer.Import(D->getBitWidth());
if (!BitWidth && D->getBitWidth())
return nullptr;
ObjCIvarDecl *ToIvar = ObjCIvarDecl::Create(Importer.getToContext(),
cast<ObjCContainerDecl>(DC),
Importer.Import(D->getInnerLocStart()),
Loc, Name.getAsIdentifierInfo(),
T, TInfo, D->getAccessControl(),
BitWidth, D->getSynthesize());
ToIvar->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToIvar);
LexicalDC->addDeclInternal(ToIvar);
return ToIvar;
}
Decl *ASTNodeImporter::VisitVarDecl(VarDecl *D) {
// Import the major distinguishing characteristics of a variable.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// Try to find a variable in our own ("to") context with the same name and
// in the same context as the variable we're importing.
if (D->isFileVarDecl()) {
VarDecl *MergeWithVar = nullptr;
SmallVector<NamedDecl *, 4> ConflictingDecls;
unsigned IDNS = Decl::IDNS_Ordinary;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
continue;
if (VarDecl *FoundVar = dyn_cast<VarDecl>(FoundDecls[I])) {
// We have found a variable that we may need to merge with. Check it.
if (FoundVar->hasExternalFormalLinkage() &&
D->hasExternalFormalLinkage()) {
if (Importer.IsStructurallyEquivalent(D->getType(),
FoundVar->getType())) {
MergeWithVar = FoundVar;
break;
}
const ArrayType *FoundArray
= Importer.getToContext().getAsArrayType(FoundVar->getType());
const ArrayType *TArray
= Importer.getToContext().getAsArrayType(D->getType());
if (FoundArray && TArray) {
if (isa<IncompleteArrayType>(FoundArray) &&
isa<ConstantArrayType>(TArray)) {
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
FoundVar->setType(T);
MergeWithVar = FoundVar;
break;
} else if (isa<IncompleteArrayType>(TArray) &&
isa<ConstantArrayType>(FoundArray)) {
MergeWithVar = FoundVar;
break;
}
}
Importer.ToDiag(Loc, diag::err_odr_variable_type_inconsistent)
<< Name << D->getType() << FoundVar->getType();
Importer.ToDiag(FoundVar->getLocation(), diag::note_odr_value_here)
<< FoundVar->getType();
}
}
ConflictingDecls.push_back(FoundDecls[I]);
}
if (MergeWithVar) {
// An equivalent variable with external linkage has been found. Link
// the two declarations, then merge them.
Importer.Imported(D, MergeWithVar);
if (VarDecl *DDef = D->getDefinition()) {
if (VarDecl *ExistingDef = MergeWithVar->getDefinition()) {
Importer.ToDiag(ExistingDef->getLocation(),
diag::err_odr_variable_multiple_def)
<< Name;
Importer.FromDiag(DDef->getLocation(), diag::note_odr_defined_here);
} else {
Expr *Init = Importer.Import(DDef->getInit());
MergeWithVar->setInit(Init);
if (DDef->isInitKnownICE()) {
EvaluatedStmt *Eval = MergeWithVar->ensureEvaluatedStmt();
Eval->CheckedICE = true;
Eval->IsICE = DDef->isInitICE();
}
}
}
return MergeWithVar;
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
if (!Name)
return nullptr;
}
}
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
// Create the imported variable.
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
VarDecl *ToVar = VarDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getInnerLocStart()),
Loc, Name.getAsIdentifierInfo(),
T, TInfo,
D->getStorageClass());
ToVar->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
ToVar->setAccess(D->getAccess());
ToVar->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToVar);
LexicalDC->addDeclInternal(ToVar);
if (!D->isFileVarDecl() &&
D->isUsed())
ToVar->setIsUsed();
// Merge the initializer.
if (ImportDefinition(D, ToVar))
return nullptr;
if (D->isConstexpr())
ToVar->setConstexpr(true);
return ToVar;
}
Decl *ASTNodeImporter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
// Parameters are created in the translation unit's context, then moved
// into the function declaration's context afterward.
DeclContext *DC = Importer.getToContext().getTranslationUnitDecl();
// Import the name of this declaration.
DeclarationName Name = Importer.Import(D->getDeclName());
if (D->getDeclName() && !Name)
return nullptr;
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
// Import the parameter's type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
// Create the imported parameter.
ImplicitParamDecl *ToParm
= ImplicitParamDecl::Create(Importer.getToContext(), DC,
Loc, Name.getAsIdentifierInfo(),
T);
return Importer.Imported(D, ToParm);
}
Decl *ASTNodeImporter::VisitParmVarDecl(ParmVarDecl *D) {
// Parameters are created in the translation unit's context, then moved
// into the function declaration's context afterward.
DeclContext *DC = Importer.getToContext().getTranslationUnitDecl();
// Import the name of this declaration.
DeclarationName Name = Importer.Import(D->getDeclName());
if (D->getDeclName() && !Name)
return nullptr;
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
// Import the parameter's type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
// Create the imported parameter.
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
ParmVarDecl *ToParm = ParmVarDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getInnerLocStart()),
Loc, Name.getAsIdentifierInfo(),
T, TInfo, D->getStorageClass(),
/*DefaultArg*/ nullptr);
// Set the default argument.
ToParm->setHasInheritedDefaultArg(D->hasInheritedDefaultArg());
ToParm->setKNRPromoted(D->isKNRPromoted());
Expr *ToDefArg = nullptr;
Expr *FromDefArg = nullptr;
if (D->hasUninstantiatedDefaultArg()) {
FromDefArg = D->getUninstantiatedDefaultArg();
ToDefArg = Importer.Import(FromDefArg);
ToParm->setUninstantiatedDefaultArg(ToDefArg);
} else if (D->hasUnparsedDefaultArg()) {
ToParm->setUnparsedDefaultArg();
} else if (D->hasDefaultArg()) {
FromDefArg = D->getDefaultArg();
ToDefArg = Importer.Import(FromDefArg);
ToParm->setDefaultArg(ToDefArg);
}
if (FromDefArg && !ToDefArg)
return nullptr;
if (D->isUsed())
ToParm->setIsUsed();
return Importer.Imported(D, ToParm);
}
Decl *ASTNodeImporter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
// Import the major distinguishing characteristics of a method.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (ObjCMethodDecl *FoundMethod = dyn_cast<ObjCMethodDecl>(FoundDecls[I])) {
if (FoundMethod->isInstanceMethod() != D->isInstanceMethod())
continue;
// Check return types.
if (!Importer.IsStructurallyEquivalent(D->getReturnType(),
FoundMethod->getReturnType())) {
Importer.ToDiag(Loc, diag::err_odr_objc_method_result_type_inconsistent)
<< D->isInstanceMethod() << Name << D->getReturnType()
<< FoundMethod->getReturnType();
Importer.ToDiag(FoundMethod->getLocation(),
diag::note_odr_objc_method_here)
<< D->isInstanceMethod() << Name;
return nullptr;
}
// Check the number of parameters.
if (D->param_size() != FoundMethod->param_size()) {
Importer.ToDiag(Loc, diag::err_odr_objc_method_num_params_inconsistent)
<< D->isInstanceMethod() << Name
<< D->param_size() << FoundMethod->param_size();
Importer.ToDiag(FoundMethod->getLocation(),
diag::note_odr_objc_method_here)
<< D->isInstanceMethod() << Name;
return nullptr;
}
// Check parameter types.
for (ObjCMethodDecl::param_iterator P = D->param_begin(),
PEnd = D->param_end(), FoundP = FoundMethod->param_begin();
P != PEnd; ++P, ++FoundP) {
if (!Importer.IsStructurallyEquivalent((*P)->getType(),
(*FoundP)->getType())) {
Importer.FromDiag((*P)->getLocation(),
diag::err_odr_objc_method_param_type_inconsistent)
<< D->isInstanceMethod() << Name
<< (*P)->getType() << (*FoundP)->getType();
Importer.ToDiag((*FoundP)->getLocation(), diag::note_odr_value_here)
<< (*FoundP)->getType();
return nullptr;
}
}
// Check variadic/non-variadic.
// Check the number of parameters.
if (D->isVariadic() != FoundMethod->isVariadic()) {
Importer.ToDiag(Loc, diag::err_odr_objc_method_variadic_inconsistent)
<< D->isInstanceMethod() << Name;
Importer.ToDiag(FoundMethod->getLocation(),
diag::note_odr_objc_method_here)
<< D->isInstanceMethod() << Name;
return nullptr;
}
// FIXME: Any other bits we need to merge?
return Importer.Imported(D, FoundMethod);
}
}
// Import the result type.
QualType ResultTy = Importer.Import(D->getReturnType());
if (ResultTy.isNull())
return nullptr;
TypeSourceInfo *ReturnTInfo = Importer.Import(D->getReturnTypeSourceInfo());
ObjCMethodDecl *ToMethod = ObjCMethodDecl::Create(
Importer.getToContext(), Loc, Importer.Import(D->getLocEnd()),
Name.getObjCSelector(), ResultTy, ReturnTInfo, DC, D->isInstanceMethod(),
D->isVariadic(), D->isPropertyAccessor(), D->isImplicit(), D->isDefined(),
D->getImplementationControl(), D->hasRelatedResultType());
// FIXME: When we decide to merge method definitions, we'll need to
// deal with implicit parameters.
// Import the parameters
SmallVector<ParmVarDecl *, 5> ToParams;
for (auto *FromP : D->parameters()) {
ParmVarDecl *ToP = cast_or_null<ParmVarDecl>(Importer.Import(FromP));
if (!ToP)
return nullptr;
ToParams.push_back(ToP);
}
// Set the parameters.
for (unsigned I = 0, N = ToParams.size(); I != N; ++I) {
ToParams[I]->setOwningFunction(ToMethod);
ToMethod->addDeclInternal(ToParams[I]);
}
SmallVector<SourceLocation, 12> SelLocs;
D->getSelectorLocs(SelLocs);
ToMethod->setMethodParams(Importer.getToContext(), ToParams, SelLocs);
ToMethod->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToMethod);
LexicalDC->addDeclInternal(ToMethod);
return ToMethod;
}
Decl *ASTNodeImporter::VisitObjCTypeParamDecl(ObjCTypeParamDecl *D) {
// Import the major distinguishing characteristics of a category.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
TypeSourceInfo *BoundInfo = Importer.Import(D->getTypeSourceInfo());
if (!BoundInfo)
return nullptr;
ObjCTypeParamDecl *Result = ObjCTypeParamDecl::Create(
Importer.getToContext(), DC,
D->getVariance(),
Importer.Import(D->getVarianceLoc()),
D->getIndex(),
Importer.Import(D->getLocation()),
Name.getAsIdentifierInfo(),
Importer.Import(D->getColonLoc()),
BoundInfo);
Importer.Imported(D, Result);
Result->setLexicalDeclContext(LexicalDC);
return Result;
}
Decl *ASTNodeImporter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
// Import the major distinguishing characteristics of a category.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
ObjCInterfaceDecl *ToInterface
= cast_or_null<ObjCInterfaceDecl>(Importer.Import(D->getClassInterface()));
if (!ToInterface)
return nullptr;
// Determine if we've already encountered this category.
ObjCCategoryDecl *MergeWithCategory
= ToInterface->FindCategoryDeclaration(Name.getAsIdentifierInfo());
ObjCCategoryDecl *ToCategory = MergeWithCategory;
if (!ToCategory) {
ToCategory = ObjCCategoryDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getAtStartLoc()),
Loc,
Importer.Import(D->getCategoryNameLoc()),
Name.getAsIdentifierInfo(),
ToInterface,
/*TypeParamList=*/nullptr,
Importer.Import(D->getIvarLBraceLoc()),
Importer.Import(D->getIvarRBraceLoc()));
ToCategory->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(ToCategory);
Importer.Imported(D, ToCategory);
// Import the type parameter list after calling Imported, to avoid
// loops when bringing in their DeclContext.
ToCategory->setTypeParamList(ImportObjCTypeParamList(
D->getTypeParamList()));
// Import protocols
SmallVector<ObjCProtocolDecl *, 4> Protocols;
SmallVector<SourceLocation, 4> ProtocolLocs;
ObjCCategoryDecl::protocol_loc_iterator FromProtoLoc
= D->protocol_loc_begin();
for (ObjCCategoryDecl::protocol_iterator FromProto = D->protocol_begin(),
FromProtoEnd = D->protocol_end();
FromProto != FromProtoEnd;
++FromProto, ++FromProtoLoc) {
ObjCProtocolDecl *ToProto
= cast_or_null<ObjCProtocolDecl>(Importer.Import(*FromProto));
if (!ToProto)
return nullptr;
Protocols.push_back(ToProto);
ProtocolLocs.push_back(Importer.Import(*FromProtoLoc));
}
// FIXME: If we're merging, make sure that the protocol list is the same.
ToCategory->setProtocolList(Protocols.data(), Protocols.size(),
ProtocolLocs.data(), Importer.getToContext());
} else {
Importer.Imported(D, ToCategory);
}
// Import all of the members of this category.
ImportDeclContext(D);
// If we have an implementation, import it as well.
if (D->getImplementation()) {
ObjCCategoryImplDecl *Impl
= cast_or_null<ObjCCategoryImplDecl>(
Importer.Import(D->getImplementation()));
if (!Impl)
return nullptr;
ToCategory->setImplementation(Impl);
}
return ToCategory;
}
bool ASTNodeImporter::ImportDefinition(ObjCProtocolDecl *From,
ObjCProtocolDecl *To,
ImportDefinitionKind Kind) {
if (To->getDefinition()) {
if (shouldForceImportDeclContext(Kind))
ImportDeclContext(From);
return false;
}
// Start the protocol definition
To->startDefinition();
// Import protocols
SmallVector<ObjCProtocolDecl *, 4> Protocols;
SmallVector<SourceLocation, 4> ProtocolLocs;
ObjCProtocolDecl::protocol_loc_iterator
FromProtoLoc = From->protocol_loc_begin();
for (ObjCProtocolDecl::protocol_iterator FromProto = From->protocol_begin(),
FromProtoEnd = From->protocol_end();
FromProto != FromProtoEnd;
++FromProto, ++FromProtoLoc) {
ObjCProtocolDecl *ToProto
= cast_or_null<ObjCProtocolDecl>(Importer.Import(*FromProto));
if (!ToProto)
return true;
Protocols.push_back(ToProto);
ProtocolLocs.push_back(Importer.Import(*FromProtoLoc));
}
// FIXME: If we're merging, make sure that the protocol list is the same.
To->setProtocolList(Protocols.data(), Protocols.size(),
ProtocolLocs.data(), Importer.getToContext());
if (shouldForceImportDeclContext(Kind)) {
// Import all of the members of this protocol.
ImportDeclContext(From, /*ForceImport=*/true);
}
return false;
}
Decl *ASTNodeImporter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
// If this protocol has a definition in the translation unit we're coming
// from, but this particular declaration is not that definition, import the
// definition and map to that.
ObjCProtocolDecl *Definition = D->getDefinition();
if (Definition && Definition != D) {
Decl *ImportedDef = Importer.Import(Definition);
if (!ImportedDef)
return nullptr;
return Importer.Imported(D, ImportedDef);
}
// Import the major distinguishing characteristics of a protocol.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
ObjCProtocolDecl *MergeWithProtocol = nullptr;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(Decl::IDNS_ObjCProtocol))
continue;
if ((MergeWithProtocol = dyn_cast<ObjCProtocolDecl>(FoundDecls[I])))
break;
}
ObjCProtocolDecl *ToProto = MergeWithProtocol;
if (!ToProto) {
ToProto = ObjCProtocolDecl::Create(Importer.getToContext(), DC,
Name.getAsIdentifierInfo(), Loc,
Importer.Import(D->getAtStartLoc()),
/*PrevDecl=*/nullptr);
ToProto->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(ToProto);
}
Importer.Imported(D, ToProto);
if (D->isThisDeclarationADefinition() && ImportDefinition(D, ToProto))
return nullptr;
return ToProto;
}
Decl *ASTNodeImporter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
DeclContext *DC = Importer.ImportContext(D->getDeclContext());
DeclContext *LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
SourceLocation ExternLoc = Importer.Import(D->getExternLoc());
SourceLocation LangLoc = Importer.Import(D->getLocation());
bool HasBraces = D->hasBraces();
LinkageSpecDecl *ToLinkageSpec =
LinkageSpecDecl::Create(Importer.getToContext(),
DC,
ExternLoc,
LangLoc,
D->getLanguage(),
HasBraces);
if (HasBraces) {
SourceLocation RBraceLoc = Importer.Import(D->getRBraceLoc());
ToLinkageSpec->setRBraceLoc(RBraceLoc);
}
ToLinkageSpec->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(ToLinkageSpec);
Importer.Imported(D, ToLinkageSpec);
return ToLinkageSpec;
}
bool ASTNodeImporter::ImportDefinition(ObjCInterfaceDecl *From,
ObjCInterfaceDecl *To,
ImportDefinitionKind Kind) {
if (To->getDefinition()) {
// Check consistency of superclass.
ObjCInterfaceDecl *FromSuper = From->getSuperClass();
if (FromSuper) {
FromSuper = cast_or_null<ObjCInterfaceDecl>(Importer.Import(FromSuper));
if (!FromSuper)
return true;
}
ObjCInterfaceDecl *ToSuper = To->getSuperClass();
if ((bool)FromSuper != (bool)ToSuper ||
(FromSuper && !declaresSameEntity(FromSuper, ToSuper))) {
Importer.ToDiag(To->getLocation(),
diag::err_odr_objc_superclass_inconsistent)
<< To->getDeclName();
if (ToSuper)
Importer.ToDiag(To->getSuperClassLoc(), diag::note_odr_objc_superclass)
<< To->getSuperClass()->getDeclName();
else
Importer.ToDiag(To->getLocation(),
diag::note_odr_objc_missing_superclass);
if (From->getSuperClass())
Importer.FromDiag(From->getSuperClassLoc(),
diag::note_odr_objc_superclass)
<< From->getSuperClass()->getDeclName();
else
Importer.FromDiag(From->getLocation(),
diag::note_odr_objc_missing_superclass);
}
if (shouldForceImportDeclContext(Kind))
ImportDeclContext(From);
return false;
}
// Start the definition.
To->startDefinition();
// If this class has a superclass, import it.
if (From->getSuperClass()) {
TypeSourceInfo *SuperTInfo = Importer.Import(From->getSuperClassTInfo());
if (!SuperTInfo)
return true;
To->setSuperClass(SuperTInfo);
}
// Import protocols
SmallVector<ObjCProtocolDecl *, 4> Protocols;
SmallVector<SourceLocation, 4> ProtocolLocs;
ObjCInterfaceDecl::protocol_loc_iterator
FromProtoLoc = From->protocol_loc_begin();
for (ObjCInterfaceDecl::protocol_iterator FromProto = From->protocol_begin(),
FromProtoEnd = From->protocol_end();
FromProto != FromProtoEnd;
++FromProto, ++FromProtoLoc) {
ObjCProtocolDecl *ToProto
= cast_or_null<ObjCProtocolDecl>(Importer.Import(*FromProto));
if (!ToProto)
return true;
Protocols.push_back(ToProto);
ProtocolLocs.push_back(Importer.Import(*FromProtoLoc));
}
// FIXME: If we're merging, make sure that the protocol list is the same.
To->setProtocolList(Protocols.data(), Protocols.size(),
ProtocolLocs.data(), Importer.getToContext());
// Import categories. When the categories themselves are imported, they'll
// hook themselves into this interface.
for (auto *Cat : From->known_categories())
Importer.Import(Cat);
// If we have an @implementation, import it as well.
if (From->getImplementation()) {
ObjCImplementationDecl *Impl = cast_or_null<ObjCImplementationDecl>(
Importer.Import(From->getImplementation()));
if (!Impl)
return true;
To->setImplementation(Impl);
}
if (shouldForceImportDeclContext(Kind)) {
// Import all of the members of this class.
ImportDeclContext(From, /*ForceImport=*/true);
}
return false;
}
ObjCTypeParamList *
ASTNodeImporter::ImportObjCTypeParamList(ObjCTypeParamList *list) {
if (!list)
return nullptr;
SmallVector<ObjCTypeParamDecl *, 4> toTypeParams;
for (auto fromTypeParam : *list) {
auto toTypeParam = cast_or_null<ObjCTypeParamDecl>(
Importer.Import(fromTypeParam));
if (!toTypeParam)
return nullptr;
toTypeParams.push_back(toTypeParam);
}
return ObjCTypeParamList::create(Importer.getToContext(),
Importer.Import(list->getLAngleLoc()),
toTypeParams,
Importer.Import(list->getRAngleLoc()));
}
Decl *ASTNodeImporter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
// If this class has a definition in the translation unit we're coming from,
// but this particular declaration is not that definition, import the
// definition and map to that.
ObjCInterfaceDecl *Definition = D->getDefinition();
if (Definition && Definition != D) {
Decl *ImportedDef = Importer.Import(Definition);
if (!ImportedDef)
return nullptr;
return Importer.Imported(D, ImportedDef);
}
// Import the major distinguishing characteristics of an @interface.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// Look for an existing interface with the same name.
ObjCInterfaceDecl *MergeWithIface = nullptr;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(Decl::IDNS_Ordinary))
continue;
if ((MergeWithIface = dyn_cast<ObjCInterfaceDecl>(FoundDecls[I])))
break;
}
// Create an interface declaration, if one does not already exist.
ObjCInterfaceDecl *ToIface = MergeWithIface;
if (!ToIface) {
ToIface = ObjCInterfaceDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getAtStartLoc()),
Name.getAsIdentifierInfo(),
/*TypeParamList=*/nullptr,
/*PrevDecl=*/nullptr, Loc,
D->isImplicitInterfaceDecl());
ToIface->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(ToIface);
}
Importer.Imported(D, ToIface);
// Import the type parameter list after calling Imported, to avoid
// loops when bringing in their DeclContext.
ToIface->setTypeParamList(ImportObjCTypeParamList(
D->getTypeParamListAsWritten()));
if (D->isThisDeclarationADefinition() && ImportDefinition(D, ToIface))
return nullptr;
return ToIface;
}
Decl *ASTNodeImporter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
ObjCCategoryDecl *Category = cast_or_null<ObjCCategoryDecl>(
Importer.Import(D->getCategoryDecl()));
if (!Category)
return nullptr;
ObjCCategoryImplDecl *ToImpl = Category->getImplementation();
if (!ToImpl) {
DeclContext *DC = Importer.ImportContext(D->getDeclContext());
if (!DC)
return nullptr;
SourceLocation CategoryNameLoc = Importer.Import(D->getCategoryNameLoc());
ToImpl = ObjCCategoryImplDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getIdentifier()),
Category->getClassInterface(),
Importer.Import(D->getLocation()),
Importer.Import(D->getAtStartLoc()),
CategoryNameLoc);
DeclContext *LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return nullptr;
ToImpl->setLexicalDeclContext(LexicalDC);
}
LexicalDC->addDeclInternal(ToImpl);
Category->setImplementation(ToImpl);
}
Importer.Imported(D, ToImpl);
ImportDeclContext(D);
return ToImpl;
}
Decl *ASTNodeImporter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
// Find the corresponding interface.
ObjCInterfaceDecl *Iface = cast_or_null<ObjCInterfaceDecl>(
Importer.Import(D->getClassInterface()));
if (!Iface)
return nullptr;
// Import the superclass, if any.
ObjCInterfaceDecl *Super = nullptr;
if (D->getSuperClass()) {
Super = cast_or_null<ObjCInterfaceDecl>(
Importer.Import(D->getSuperClass()));
if (!Super)
return nullptr;
}
ObjCImplementationDecl *Impl = Iface->getImplementation();
if (!Impl) {
// We haven't imported an implementation yet. Create a new @implementation
// now.
Impl = ObjCImplementationDecl::Create(Importer.getToContext(),
Importer.ImportContext(D->getDeclContext()),
Iface, Super,
Importer.Import(D->getLocation()),
Importer.Import(D->getAtStartLoc()),
Importer.Import(D->getSuperClassLoc()),
Importer.Import(D->getIvarLBraceLoc()),
Importer.Import(D->getIvarRBraceLoc()));
if (D->getDeclContext() != D->getLexicalDeclContext()) {
DeclContext *LexicalDC
= Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return nullptr;
Impl->setLexicalDeclContext(LexicalDC);
}
// Associate the implementation with the class it implements.
Iface->setImplementation(Impl);
Importer.Imported(D, Iface->getImplementation());
} else {
Importer.Imported(D, Iface->getImplementation());
// Verify that the existing @implementation has the same superclass.
if ((Super && !Impl->getSuperClass()) ||
(!Super && Impl->getSuperClass()) ||
(Super && Impl->getSuperClass() &&
!declaresSameEntity(Super->getCanonicalDecl(),
Impl->getSuperClass()))) {
Importer.ToDiag(Impl->getLocation(),
diag::err_odr_objc_superclass_inconsistent)
<< Iface->getDeclName();
// FIXME: It would be nice to have the location of the superclass
// below.
if (Impl->getSuperClass())
Importer.ToDiag(Impl->getLocation(),
diag::note_odr_objc_superclass)
<< Impl->getSuperClass()->getDeclName();
else
Importer.ToDiag(Impl->getLocation(),
diag::note_odr_objc_missing_superclass);
if (D->getSuperClass())
Importer.FromDiag(D->getLocation(),
diag::note_odr_objc_superclass)
<< D->getSuperClass()->getDeclName();
else
Importer.FromDiag(D->getLocation(),
diag::note_odr_objc_missing_superclass);
return nullptr;
}
}
// Import all of the members of this @implementation.
ImportDeclContext(D);
return Impl;
}
Decl *ASTNodeImporter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
// Import the major distinguishing characteristics of an @property.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// Check whether we have already imported this property.
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (ObjCPropertyDecl *FoundProp
= dyn_cast<ObjCPropertyDecl>(FoundDecls[I])) {
// Check property types.
if (!Importer.IsStructurallyEquivalent(D->getType(),
FoundProp->getType())) {
Importer.ToDiag(Loc, diag::err_odr_objc_property_type_inconsistent)
<< Name << D->getType() << FoundProp->getType();
Importer.ToDiag(FoundProp->getLocation(), diag::note_odr_value_here)
<< FoundProp->getType();
return nullptr;
}
// FIXME: Check property attributes, getters, setters, etc.?
// Consider these properties to be equivalent.
Importer.Imported(D, FoundProp);
return FoundProp;
}
}
// Import the type.
TypeSourceInfo *TSI = Importer.Import(D->getTypeSourceInfo());
if (!TSI)
return nullptr;
// Create the new property.
ObjCPropertyDecl *ToProperty
= ObjCPropertyDecl::Create(Importer.getToContext(), DC, Loc,
Name.getAsIdentifierInfo(),
Importer.Import(D->getAtLoc()),
Importer.Import(D->getLParenLoc()),
Importer.Import(D->getType()),
TSI,
D->getPropertyImplementation());
Importer.Imported(D, ToProperty);
ToProperty->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(ToProperty);
ToProperty->setPropertyAttributes(D->getPropertyAttributes());
ToProperty->setPropertyAttributesAsWritten(
D->getPropertyAttributesAsWritten());
ToProperty->setGetterName(Importer.Import(D->getGetterName()),
Importer.Import(D->getGetterNameLoc()));
ToProperty->setSetterName(Importer.Import(D->getSetterName()),
Importer.Import(D->getSetterNameLoc()));
ToProperty->setGetterMethodDecl(
cast_or_null<ObjCMethodDecl>(Importer.Import(D->getGetterMethodDecl())));
ToProperty->setSetterMethodDecl(
cast_or_null<ObjCMethodDecl>(Importer.Import(D->getSetterMethodDecl())));
ToProperty->setPropertyIvarDecl(
cast_or_null<ObjCIvarDecl>(Importer.Import(D->getPropertyIvarDecl())));
return ToProperty;
}
Decl *ASTNodeImporter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
ObjCPropertyDecl *Property = cast_or_null<ObjCPropertyDecl>(
Importer.Import(D->getPropertyDecl()));
if (!Property)
return nullptr;
DeclContext *DC = Importer.ImportContext(D->getDeclContext());
if (!DC)
return nullptr;
// Import the lexical declaration context.
DeclContext *LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return nullptr;
}
ObjCImplDecl *InImpl = dyn_cast<ObjCImplDecl>(LexicalDC);
if (!InImpl)
return nullptr;
// Import the ivar (for an @synthesize).
ObjCIvarDecl *Ivar = nullptr;
if (D->getPropertyIvarDecl()) {
Ivar = cast_or_null<ObjCIvarDecl>(
Importer.Import(D->getPropertyIvarDecl()));
if (!Ivar)
return nullptr;
}
ObjCPropertyImplDecl *ToImpl
= InImpl->FindPropertyImplDecl(Property->getIdentifier(),
Property->getQueryKind());
if (!ToImpl) {
ToImpl = ObjCPropertyImplDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getLocStart()),
Importer.Import(D->getLocation()),
Property,
D->getPropertyImplementation(),
Ivar,
Importer.Import(D->getPropertyIvarDeclLoc()));
ToImpl->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToImpl);
LexicalDC->addDeclInternal(ToImpl);
} else {
// Check that we have the same kind of property implementation (@synthesize
// vs. @dynamic).
if (D->getPropertyImplementation() != ToImpl->getPropertyImplementation()) {
Importer.ToDiag(ToImpl->getLocation(),
diag::err_odr_objc_property_impl_kind_inconsistent)
<< Property->getDeclName()
<< (ToImpl->getPropertyImplementation()
== ObjCPropertyImplDecl::Dynamic);
Importer.FromDiag(D->getLocation(),
diag::note_odr_objc_property_impl_kind)
<< D->getPropertyDecl()->getDeclName()
<< (D->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic);
return nullptr;
}
// For @synthesize, check that we have the same
if (D->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize &&
Ivar != ToImpl->getPropertyIvarDecl()) {
Importer.ToDiag(ToImpl->getPropertyIvarDeclLoc(),
diag::err_odr_objc_synthesize_ivar_inconsistent)
<< Property->getDeclName()
<< ToImpl->getPropertyIvarDecl()->getDeclName()
<< Ivar->getDeclName();
Importer.FromDiag(D->getPropertyIvarDeclLoc(),
diag::note_odr_objc_synthesize_ivar_here)
<< D->getPropertyIvarDecl()->getDeclName();
return nullptr;
}
// Merge the existing implementation with the new implementation.
Importer.Imported(D, ToImpl);
}
return ToImpl;
}
Decl *ASTNodeImporter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
// For template arguments, we adopt the translation unit as our declaration
// context. This context will be fixed when the actual template declaration
// is created.
// FIXME: Import default argument.
return TemplateTypeParmDecl::Create(Importer.getToContext(),
Importer.getToContext().getTranslationUnitDecl(),
Importer.Import(D->getLocStart()),
Importer.Import(D->getLocation()),
D->getDepth(),
D->getIndex(),
Importer.Import(D->getIdentifier()),
D->wasDeclaredWithTypename(),
D->isParameterPack());
}
Decl *
ASTNodeImporter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
// Import the name of this declaration.
DeclarationName Name = Importer.Import(D->getDeclName());
if (D->getDeclName() && !Name)
return nullptr;
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
// Import the type of this declaration.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
// Import type-source information.
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
if (D->getTypeSourceInfo() && !TInfo)
return nullptr;
// FIXME: Import default argument.
return NonTypeTemplateParmDecl::Create(Importer.getToContext(),
Importer.getToContext().getTranslationUnitDecl(),
Importer.Import(D->getInnerLocStart()),
Loc, D->getDepth(), D->getPosition(),
Name.getAsIdentifierInfo(),
T, D->isParameterPack(), TInfo);
}
Decl *
ASTNodeImporter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
// Import the name of this declaration.
DeclarationName Name = Importer.Import(D->getDeclName());
if (D->getDeclName() && !Name)
return nullptr;
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
// Import template parameters.
TemplateParameterList *TemplateParams
= ImportTemplateParameterList(D->getTemplateParameters());
if (!TemplateParams)
return nullptr;
// FIXME: Import default argument.
return TemplateTemplateParmDecl::Create(Importer.getToContext(),
Importer.getToContext().getTranslationUnitDecl(),
Loc, D->getDepth(), D->getPosition(),
D->isParameterPack(),
Name.getAsIdentifierInfo(),
TemplateParams);
}
Decl *ASTNodeImporter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
// If this record has a definition in the translation unit we're coming from,
// but this particular declaration is not that definition, import the
// definition and map to that.
CXXRecordDecl *Definition
= cast_or_null<CXXRecordDecl>(D->getTemplatedDecl()->getDefinition());
if (Definition && Definition != D->getTemplatedDecl()) {
Decl *ImportedDef
= Importer.Import(Definition->getDescribedClassTemplate());
if (!ImportedDef)
return nullptr;
return Importer.Imported(D, ImportedDef);
}
// Import the major distinguishing characteristics of this class template.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// We may already have a template of the same name; try to find and match it.
if (!DC->isFunctionOrMethod()) {
SmallVector<NamedDecl *, 4> ConflictingDecls;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(Decl::IDNS_Ordinary))
continue;
Decl *Found = FoundDecls[I];
if (ClassTemplateDecl *FoundTemplate
= dyn_cast<ClassTemplateDecl>(Found)) {
if (IsStructuralMatch(D, FoundTemplate)) {
// The class templates structurally match; call it the same template.
// FIXME: We may be filling in a forward declaration here. Handle
// this case!
Importer.Imported(D->getTemplatedDecl(),
FoundTemplate->getTemplatedDecl());
return Importer.Imported(D, FoundTemplate);
}
}
ConflictingDecls.push_back(FoundDecls[I]);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, Decl::IDNS_Ordinary,
ConflictingDecls.data(),
ConflictingDecls.size());
}
if (!Name)
return nullptr;
}
CXXRecordDecl *DTemplated = D->getTemplatedDecl();
// Create the declaration that is being templated.
// Create the declaration that is being templated.
CXXRecordDecl *D2Templated = cast_or_null<CXXRecordDecl>(
Importer.Import(DTemplated));
if (!D2Templated)
return nullptr;
// Resolve possible cyclic import.
if (Decl *AlreadyImported = Importer.GetAlreadyImportedOrNull(D))
return AlreadyImported;
// Create the class template declaration itself.
TemplateParameterList *TemplateParams
= ImportTemplateParameterList(D->getTemplateParameters());
if (!TemplateParams)
return nullptr;
ClassTemplateDecl *D2 = ClassTemplateDecl::Create(Importer.getToContext(), DC,
Loc, Name, TemplateParams,
D2Templated);
D2Templated->setDescribedClassTemplate(D2);
D2->setAccess(D->getAccess());
D2->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(D2);
// Note the relationship between the class templates.
Importer.Imported(D, D2);
Importer.Imported(DTemplated, D2Templated);
if (DTemplated->isCompleteDefinition() &&
!D2Templated->isCompleteDefinition()) {
// FIXME: Import definition!
}
return D2;
}
Decl *ASTNodeImporter::VisitClassTemplateSpecializationDecl(
ClassTemplateSpecializationDecl *D) {
// If this record has a definition in the translation unit we're coming from,
// but this particular declaration is not that definition, import the
// definition and map to that.
TagDecl *Definition = D->getDefinition();
if (Definition && Definition != D) {
Decl *ImportedDef = Importer.Import(Definition);
if (!ImportedDef)
return nullptr;
return Importer.Imported(D, ImportedDef);
}
ClassTemplateDecl *ClassTemplate
= cast_or_null<ClassTemplateDecl>(Importer.Import(
D->getSpecializedTemplate()));
if (!ClassTemplate)
return nullptr;
// Import the context of this declaration.
DeclContext *DC = ClassTemplate->getDeclContext();
if (!DC)
return nullptr;
DeclContext *LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return nullptr;
}
// Import the location of this declaration.
SourceLocation StartLoc = Importer.Import(D->getLocStart());
SourceLocation IdLoc = Importer.Import(D->getLocation());
// Import template arguments.
SmallVector<TemplateArgument, 2> TemplateArgs;
if (ImportTemplateArguments(D->getTemplateArgs().data(),
D->getTemplateArgs().size(),
TemplateArgs))
return nullptr;
// Try to find an existing specialization with these template arguments.
void *InsertPos = nullptr;
ClassTemplateSpecializationDecl *D2
= ClassTemplate->findSpecialization(TemplateArgs, InsertPos);
if (D2) {
// We already have a class template specialization with these template
// arguments.
// FIXME: Check for specialization vs. instantiation errors.
if (RecordDecl *FoundDef = D2->getDefinition()) {
if (!D->isCompleteDefinition() || IsStructuralMatch(D, FoundDef)) {
// The record types structurally match, or the "from" translation
// unit only had a forward declaration anyway; call it the same
// function.
return Importer.Imported(D, FoundDef);
}
}
} else {
// Create a new specialization.
if (ClassTemplatePartialSpecializationDecl *PartialSpec =
dyn_cast<ClassTemplatePartialSpecializationDecl>(D)) {
// Import TemplateArgumentListInfo
TemplateArgumentListInfo ToTAInfo;
auto &ASTTemplateArgs = *PartialSpec->getTemplateArgsAsWritten();
for (unsigned I = 0, E = ASTTemplateArgs.NumTemplateArgs; I < E; ++I) {
bool Error = false;
auto ToLoc = ImportTemplateArgumentLoc(ASTTemplateArgs[I], Error);
if (Error)
return nullptr;
ToTAInfo.addArgument(ToLoc);
}
QualType CanonInjType = Importer.Import(
PartialSpec->getInjectedSpecializationType());
if (CanonInjType.isNull())
return nullptr;
CanonInjType = CanonInjType.getCanonicalType();
TemplateParameterList *ToTPList = ImportTemplateParameterList(
PartialSpec->getTemplateParameters());
if (!ToTPList && PartialSpec->getTemplateParameters())
return nullptr;
D2 = ClassTemplatePartialSpecializationDecl::Create(
Importer.getToContext(), D->getTagKind(), DC, StartLoc, IdLoc,
ToTPList, ClassTemplate,
llvm::makeArrayRef(TemplateArgs.data(), TemplateArgs.size()),
ToTAInfo, CanonInjType, nullptr);
} else {
D2 = ClassTemplateSpecializationDecl::Create(Importer.getToContext(),
D->getTagKind(), DC,
StartLoc, IdLoc,
ClassTemplate,
TemplateArgs,
/*PrevDecl=*/nullptr);
}
D2->setSpecializationKind(D->getSpecializationKind());
// Add this specialization to the class template.
ClassTemplate->AddSpecialization(D2, InsertPos);
// Import the qualifier, if any.
D2->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
Importer.Imported(D, D2);
if (auto *TSI = D->getTypeAsWritten()) {
TypeSourceInfo *TInfo = Importer.Import(TSI);
if (!TInfo)
return nullptr;
D2->setTypeAsWritten(TInfo);
D2->setTemplateKeywordLoc(Importer.Import(D->getTemplateKeywordLoc()));
D2->setExternLoc(Importer.Import(D->getExternLoc()));
}
SourceLocation POI = Importer.Import(D->getPointOfInstantiation());
if (POI.isValid())
D2->setPointOfInstantiation(POI);
else if (D->getPointOfInstantiation().isValid())
return nullptr;
D2->setTemplateSpecializationKind(D->getTemplateSpecializationKind());
// Add the specialization to this context.
D2->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(D2);
}
Importer.Imported(D, D2);
if (D->isCompleteDefinition() && ImportDefinition(D, D2))
return nullptr;
return D2;
}
Decl *ASTNodeImporter::VisitVarTemplateDecl(VarTemplateDecl *D) {
// If this variable has a definition in the translation unit we're coming
// from,
// but this particular declaration is not that definition, import the
// definition and map to that.
VarDecl *Definition =
cast_or_null<VarDecl>(D->getTemplatedDecl()->getDefinition());
if (Definition && Definition != D->getTemplatedDecl()) {
Decl *ImportedDef = Importer.Import(Definition->getDescribedVarTemplate());
if (!ImportedDef)
return nullptr;
return Importer.Imported(D, ImportedDef);
}
// Import the major distinguishing characteristics of this variable template.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
NamedDecl *ToD;
if (ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc))
return nullptr;
if (ToD)
return ToD;
// We may already have a template of the same name; try to find and match it.
assert(!DC->isFunctionOrMethod() &&
"Variable templates cannot be declared at function scope");
SmallVector<NamedDecl *, 4> ConflictingDecls;
SmallVector<NamedDecl *, 2> FoundDecls;
DC->getRedeclContext()->localUncachedLookup(Name, FoundDecls);
for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
if (!FoundDecls[I]->isInIdentifierNamespace(Decl::IDNS_Ordinary))
continue;
Decl *Found = FoundDecls[I];
if (VarTemplateDecl *FoundTemplate = dyn_cast<VarTemplateDecl>(Found)) {
if (IsStructuralMatch(D, FoundTemplate)) {
// The variable templates structurally match; call it the same template.
Importer.Imported(D->getTemplatedDecl(),
FoundTemplate->getTemplatedDecl());
return Importer.Imported(D, FoundTemplate);
}
}
ConflictingDecls.push_back(FoundDecls[I]);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, Decl::IDNS_Ordinary,
ConflictingDecls.data(),
ConflictingDecls.size());
}
if (!Name)
return nullptr;
VarDecl *DTemplated = D->getTemplatedDecl();
// Import the type.
QualType T = Importer.Import(DTemplated->getType());
if (T.isNull())
return nullptr;
// Create the declaration that is being templated.
SourceLocation StartLoc = Importer.Import(DTemplated->getLocStart());
SourceLocation IdLoc = Importer.Import(DTemplated->getLocation());
TypeSourceInfo *TInfo = Importer.Import(DTemplated->getTypeSourceInfo());
VarDecl *D2Templated = VarDecl::Create(Importer.getToContext(), DC, StartLoc,
IdLoc, Name.getAsIdentifierInfo(), T,
TInfo, DTemplated->getStorageClass());
D2Templated->setAccess(DTemplated->getAccess());
D2Templated->setQualifierInfo(Importer.Import(DTemplated->getQualifierLoc()));
D2Templated->setLexicalDeclContext(LexicalDC);
// Importer.Imported(DTemplated, D2Templated);
// LexicalDC->addDeclInternal(D2Templated);
// Merge the initializer.
if (ImportDefinition(DTemplated, D2Templated))
return nullptr;
// Create the variable template declaration itself.
TemplateParameterList *TemplateParams =
ImportTemplateParameterList(D->getTemplateParameters());
if (!TemplateParams)
return nullptr;
VarTemplateDecl *D2 = VarTemplateDecl::Create(
Importer.getToContext(), DC, Loc, Name, TemplateParams, D2Templated);
D2Templated->setDescribedVarTemplate(D2);
D2->setAccess(D->getAccess());
D2->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(D2);
// Note the relationship between the variable templates.
Importer.Imported(D, D2);
Importer.Imported(DTemplated, D2Templated);
if (DTemplated->isThisDeclarationADefinition() &&
!D2Templated->isThisDeclarationADefinition()) {
// FIXME: Import definition!
}
return D2;
}
Decl *ASTNodeImporter::VisitVarTemplateSpecializationDecl(
VarTemplateSpecializationDecl *D) {
// If this record has a definition in the translation unit we're coming from,
// but this particular declaration is not that definition, import the
// definition and map to that.
VarDecl *Definition = D->getDefinition();
if (Definition && Definition != D) {
Decl *ImportedDef = Importer.Import(Definition);
if (!ImportedDef)
return nullptr;
return Importer.Imported(D, ImportedDef);
}
VarTemplateDecl *VarTemplate = cast_or_null<VarTemplateDecl>(
Importer.Import(D->getSpecializedTemplate()));
if (!VarTemplate)
return nullptr;
// Import the context of this declaration.
DeclContext *DC = VarTemplate->getDeclContext();
if (!DC)
return nullptr;
DeclContext *LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return nullptr;
}
// Import the location of this declaration.
SourceLocation StartLoc = Importer.Import(D->getLocStart());
SourceLocation IdLoc = Importer.Import(D->getLocation());
// Import template arguments.
SmallVector<TemplateArgument, 2> TemplateArgs;
if (ImportTemplateArguments(D->getTemplateArgs().data(),
D->getTemplateArgs().size(), TemplateArgs))
return nullptr;
// Try to find an existing specialization with these template arguments.
void *InsertPos = nullptr;
VarTemplateSpecializationDecl *D2 = VarTemplate->findSpecialization(
TemplateArgs, InsertPos);
if (D2) {
// We already have a variable template specialization with these template
// arguments.
// FIXME: Check for specialization vs. instantiation errors.
if (VarDecl *FoundDef = D2->getDefinition()) {
if (!D->isThisDeclarationADefinition() ||
IsStructuralMatch(D, FoundDef)) {
// The record types structurally match, or the "from" translation
// unit only had a forward declaration anyway; call it the same
// variable.
return Importer.Imported(D, FoundDef);
}
}
} else {
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return nullptr;
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
// Create a new specialization.
D2 = VarTemplateSpecializationDecl::Create(
Importer.getToContext(), DC, StartLoc, IdLoc, VarTemplate, T, TInfo,
D->getStorageClass(), TemplateArgs);
D2->setSpecializationKind(D->getSpecializationKind());
D2->setTemplateArgsInfo(D->getTemplateArgsInfo());
// Add this specialization to the class template.
VarTemplate->AddSpecialization(D2, InsertPos);
// Import the qualifier, if any.
D2->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
// Add the specialization to this context.
D2->setLexicalDeclContext(LexicalDC);
LexicalDC->addDeclInternal(D2);
}
Importer.Imported(D, D2);
if (D->isThisDeclarationADefinition() && ImportDefinition(D, D2))
return nullptr;
return D2;
}
//----------------------------------------------------------------------------
// Import Statements
//----------------------------------------------------------------------------
DeclGroupRef ASTNodeImporter::ImportDeclGroup(DeclGroupRef DG) {
if (DG.isNull())
return DeclGroupRef::Create(Importer.getToContext(), nullptr, 0);
size_t NumDecls = DG.end() - DG.begin();
SmallVector<Decl *, 1> ToDecls(NumDecls);
auto &_Importer = this->Importer;
std::transform(DG.begin(), DG.end(), ToDecls.begin(),
[&_Importer](Decl *D) -> Decl * {
return _Importer.Import(D);
});
return DeclGroupRef::Create(Importer.getToContext(),
ToDecls.begin(),
NumDecls);
}
Stmt *ASTNodeImporter::VisitStmt(Stmt *S) {
Importer.FromDiag(S->getLocStart(), diag::err_unsupported_ast_node)
<< S->getStmtClassName();
return nullptr;
}
Stmt *ASTNodeImporter::VisitGCCAsmStmt(GCCAsmStmt *S) {
SmallVector<IdentifierInfo *, 4> Names;
for (unsigned I = 0, E = S->getNumOutputs(); I != E; I++) {
IdentifierInfo *ToII = Importer.Import(S->getOutputIdentifier(I));
// ToII is nullptr when no symbolic name is given for output operand
// see ParseStmtAsm::ParseAsmOperandsOpt
if (!ToII && S->getOutputIdentifier(I))
return nullptr;
Names.push_back(ToII);
}
for (unsigned I = 0, E = S->getNumInputs(); I != E; I++) {
IdentifierInfo *ToII = Importer.Import(S->getInputIdentifier(I));
// ToII is nullptr when no symbolic name is given for input operand
// see ParseStmtAsm::ParseAsmOperandsOpt
if (!ToII && S->getInputIdentifier(I))
return nullptr;
Names.push_back(ToII);
}
SmallVector<StringLiteral *, 4> Clobbers;
for (unsigned I = 0, E = S->getNumClobbers(); I != E; I++) {
StringLiteral *Clobber = cast_or_null<StringLiteral>(
Importer.Import(S->getClobberStringLiteral(I)));
if (!Clobber)
return nullptr;
Clobbers.push_back(Clobber);
}
SmallVector<StringLiteral *, 4> Constraints;
for (unsigned I = 0, E = S->getNumOutputs(); I != E; I++) {
StringLiteral *Output = cast_or_null<StringLiteral>(
Importer.Import(S->getOutputConstraintLiteral(I)));
if (!Output)
return nullptr;
Constraints.push_back(Output);
}
for (unsigned I = 0, E = S->getNumInputs(); I != E; I++) {
StringLiteral *Input = cast_or_null<StringLiteral>(
Importer.Import(S->getInputConstraintLiteral(I)));
if (!Input)
return nullptr;
Constraints.push_back(Input);
}
SmallVector<Expr *, 4> Exprs(S->getNumOutputs() + S->getNumInputs());
if (ImportContainerChecked(S->outputs(), Exprs))
return nullptr;
if (ImportArrayChecked(S->inputs(), Exprs.begin() + S->getNumOutputs()))
return nullptr;
StringLiteral *AsmStr = cast_or_null<StringLiteral>(
Importer.Import(S->getAsmString()));
if (!AsmStr)
return nullptr;
return new (Importer.getToContext()) GCCAsmStmt(
Importer.getToContext(),
Importer.Import(S->getAsmLoc()),
S->isSimple(),
S->isVolatile(),
S->getNumOutputs(),
S->getNumInputs(),
Names.data(),
Constraints.data(),
Exprs.data(),
AsmStr,
S->getNumClobbers(),
Clobbers.data(),
Importer.Import(S->getRParenLoc()));
}
Stmt *ASTNodeImporter::VisitDeclStmt(DeclStmt *S) {
DeclGroupRef ToDG = ImportDeclGroup(S->getDeclGroup());
for (Decl *ToD : ToDG) {
if (!ToD)
return nullptr;
}
SourceLocation ToStartLoc = Importer.Import(S->getStartLoc());
SourceLocation ToEndLoc = Importer.Import(S->getEndLoc());
return new (Importer.getToContext()) DeclStmt(ToDG, ToStartLoc, ToEndLoc);
}
Stmt *ASTNodeImporter::VisitNullStmt(NullStmt *S) {
SourceLocation ToSemiLoc = Importer.Import(S->getSemiLoc());
return new (Importer.getToContext()) NullStmt(ToSemiLoc,
S->hasLeadingEmptyMacro());
}
Stmt *ASTNodeImporter::VisitCompoundStmt(CompoundStmt *S) {
llvm::SmallVector<Stmt *, 8> ToStmts(S->size());
if (ImportContainerChecked(S->body(), ToStmts))
return nullptr;
SourceLocation ToLBraceLoc = Importer.Import(S->getLBracLoc());
SourceLocation ToRBraceLoc = Importer.Import(S->getRBracLoc());
return new (Importer.getToContext()) CompoundStmt(Importer.getToContext(),
ToStmts,
ToLBraceLoc, ToRBraceLoc);
}
Stmt *ASTNodeImporter::VisitCaseStmt(CaseStmt *S) {
Expr *ToLHS = Importer.Import(S->getLHS());
if (!ToLHS)
return nullptr;
Expr *ToRHS = Importer.Import(S->getRHS());
if (!ToRHS && S->getRHS())
return nullptr;
SourceLocation ToCaseLoc = Importer.Import(S->getCaseLoc());
SourceLocation ToEllipsisLoc = Importer.Import(S->getEllipsisLoc());
SourceLocation ToColonLoc = Importer.Import(S->getColonLoc());
return new (Importer.getToContext()) CaseStmt(ToLHS, ToRHS,
ToCaseLoc, ToEllipsisLoc,
ToColonLoc);
}
Stmt *ASTNodeImporter::VisitDefaultStmt(DefaultStmt *S) {
SourceLocation ToDefaultLoc = Importer.Import(S->getDefaultLoc());
SourceLocation ToColonLoc = Importer.Import(S->getColonLoc());
Stmt *ToSubStmt = Importer.Import(S->getSubStmt());
if (!ToSubStmt && S->getSubStmt())
return nullptr;
return new (Importer.getToContext()) DefaultStmt(ToDefaultLoc, ToColonLoc,
ToSubStmt);
}
Stmt *ASTNodeImporter::VisitLabelStmt(LabelStmt *S) {
SourceLocation ToIdentLoc = Importer.Import(S->getIdentLoc());
LabelDecl *ToLabelDecl =
cast_or_null<LabelDecl>(Importer.Import(S->getDecl()));
if (!ToLabelDecl && S->getDecl())
return nullptr;
Stmt *ToSubStmt = Importer.Import(S->getSubStmt());
if (!ToSubStmt && S->getSubStmt())
return nullptr;
return new (Importer.getToContext()) LabelStmt(ToIdentLoc, ToLabelDecl,
ToSubStmt);
}
Stmt *ASTNodeImporter::VisitAttributedStmt(AttributedStmt *S) {
SourceLocation ToAttrLoc = Importer.Import(S->getAttrLoc());
ArrayRef<const Attr*> FromAttrs(S->getAttrs());
SmallVector<const Attr *, 1> ToAttrs(FromAttrs.size());
ASTContext &_ToContext = Importer.getToContext();
std::transform(FromAttrs.begin(), FromAttrs.end(), ToAttrs.begin(),
[&_ToContext](const Attr *A) -> const Attr * {
return A->clone(_ToContext);
});
for (const Attr *ToA : ToAttrs) {
if (!ToA)
return nullptr;
}
Stmt *ToSubStmt = Importer.Import(S->getSubStmt());
if (!ToSubStmt && S->getSubStmt())
return nullptr;
return AttributedStmt::Create(Importer.getToContext(), ToAttrLoc,
ToAttrs, ToSubStmt);
}
Stmt *ASTNodeImporter::VisitIfStmt(IfStmt *S) {
SourceLocation ToIfLoc = Importer.Import(S->getIfLoc());
Stmt *ToInit = Importer.Import(S->getInit());
if (!ToInit && S->getInit())
return nullptr;
VarDecl *ToConditionVariable = nullptr;
if (VarDecl *FromConditionVariable = S->getConditionVariable()) {
ToConditionVariable =
dyn_cast_or_null<VarDecl>(Importer.Import(FromConditionVariable));
if (!ToConditionVariable)
return nullptr;
}
Expr *ToCondition = Importer.Import(S->getCond());
if (!ToCondition && S->getCond())
return nullptr;
Stmt *ToThenStmt = Importer.Import(S->getThen());
if (!ToThenStmt && S->getThen())
return nullptr;
SourceLocation ToElseLoc = Importer.Import(S->getElseLoc());
Stmt *ToElseStmt = Importer.Import(S->getElse());
if (!ToElseStmt && S->getElse())
return nullptr;
return new (Importer.getToContext()) IfStmt(Importer.getToContext(),
ToIfLoc, S->isConstexpr(),
ToInit,
ToConditionVariable,
ToCondition, ToThenStmt,
ToElseLoc, ToElseStmt);
}
Stmt *ASTNodeImporter::VisitSwitchStmt(SwitchStmt *S) {
Stmt *ToInit = Importer.Import(S->getInit());
if (!ToInit && S->getInit())
return nullptr;
VarDecl *ToConditionVariable = nullptr;
if (VarDecl *FromConditionVariable = S->getConditionVariable()) {
ToConditionVariable =
dyn_cast_or_null<VarDecl>(Importer.Import(FromConditionVariable));
if (!ToConditionVariable)
return nullptr;
}
Expr *ToCondition = Importer.Import(S->getCond());
if (!ToCondition && S->getCond())
return nullptr;
SwitchStmt *ToStmt = new (Importer.getToContext()) SwitchStmt(
Importer.getToContext(), ToInit,
ToConditionVariable, ToCondition);
Stmt *ToBody = Importer.Import(S->getBody());
if (!ToBody && S->getBody())
return nullptr;
ToStmt->setBody(ToBody);
ToStmt->setSwitchLoc(Importer.Import(S->getSwitchLoc()));
// Now we have to re-chain the cases.
SwitchCase *LastChainedSwitchCase = nullptr;
for (SwitchCase *SC = S->getSwitchCaseList(); SC != nullptr;
SC = SC->getNextSwitchCase()) {
SwitchCase *ToSC = dyn_cast_or_null<SwitchCase>(Importer.Import(SC));
if (!ToSC)
return nullptr;
if (LastChainedSwitchCase)
LastChainedSwitchCase->setNextSwitchCase(ToSC);
else
ToStmt->setSwitchCaseList(ToSC);
LastChainedSwitchCase = ToSC;
}
return ToStmt;
}
Stmt *ASTNodeImporter::VisitWhileStmt(WhileStmt *S) {
VarDecl *ToConditionVariable = nullptr;
if (VarDecl *FromConditionVariable = S->getConditionVariable()) {
ToConditionVariable =
dyn_cast_or_null<VarDecl>(Importer.Import(FromConditionVariable));
if (!ToConditionVariable)
return nullptr;
}
Expr *ToCondition = Importer.Import(S->getCond());
if (!ToCondition && S->getCond())
return nullptr;
Stmt *ToBody = Importer.Import(S->getBody());
if (!ToBody && S->getBody())
return nullptr;
SourceLocation ToWhileLoc = Importer.Import(S->getWhileLoc());
return new (Importer.getToContext()) WhileStmt(Importer.getToContext(),
ToConditionVariable,
ToCondition, ToBody,
ToWhileLoc);
}
Stmt *ASTNodeImporter::VisitDoStmt(DoStmt *S) {
Stmt *ToBody = Importer.Import(S->getBody());
if (!ToBody && S->getBody())
return nullptr;
Expr *ToCondition = Importer.Import(S->getCond());
if (!ToCondition && S->getCond())
return nullptr;
SourceLocation ToDoLoc = Importer.Import(S->getDoLoc());
SourceLocation ToWhileLoc = Importer.Import(S->getWhileLoc());
SourceLocation ToRParenLoc = Importer.Import(S->getRParenLoc());
return new (Importer.getToContext()) DoStmt(ToBody, ToCondition,
ToDoLoc, ToWhileLoc,
ToRParenLoc);
}
Stmt *ASTNodeImporter::VisitForStmt(ForStmt *S) {
Stmt *ToInit = Importer.Import(S->getInit());
if (!ToInit && S->getInit())
return nullptr;
Expr *ToCondition = Importer.Import(S->getCond());
if (!ToCondition && S->getCond())
return nullptr;
VarDecl *ToConditionVariable = nullptr;
if (VarDecl *FromConditionVariable = S->getConditionVariable()) {
ToConditionVariable =
dyn_cast_or_null<VarDecl>(Importer.Import(FromConditionVariable));
if (!ToConditionVariable)
return nullptr;
}
Expr *ToInc = Importer.Import(S->getInc());
if (!ToInc && S->getInc())
return nullptr;
Stmt *ToBody = Importer.Import(S->getBody());
if (!ToBody && S->getBody())
return nullptr;
SourceLocation ToForLoc = Importer.Import(S->getForLoc());
SourceLocation ToLParenLoc = Importer.Import(S->getLParenLoc());
SourceLocation ToRParenLoc = Importer.Import(S->getRParenLoc());
return new (Importer.getToContext()) ForStmt(Importer.getToContext(),
ToInit, ToCondition,
ToConditionVariable,
ToInc, ToBody,
ToForLoc, ToLParenLoc,
ToRParenLoc);
}
Stmt *ASTNodeImporter::VisitGotoStmt(GotoStmt *S) {
LabelDecl *ToLabel = nullptr;
if (LabelDecl *FromLabel = S->getLabel()) {
ToLabel = dyn_cast_or_null<LabelDecl>(Importer.Import(FromLabel));
if (!ToLabel)
return nullptr;
}
SourceLocation ToGotoLoc = Importer.Import(S->getGotoLoc());
SourceLocation ToLabelLoc = Importer.Import(S->getLabelLoc());
return new (Importer.getToContext()) GotoStmt(ToLabel,
ToGotoLoc, ToLabelLoc);
}
Stmt *ASTNodeImporter::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
SourceLocation ToGotoLoc = Importer.Import(S->getGotoLoc());
SourceLocation ToStarLoc = Importer.Import(S->getStarLoc());
Expr *ToTarget = Importer.Import(S->getTarget());
if (!ToTarget && S->getTarget())
return nullptr;
return new (Importer.getToContext()) IndirectGotoStmt(ToGotoLoc, ToStarLoc,
ToTarget);
}
Stmt *ASTNodeImporter::VisitContinueStmt(ContinueStmt *S) {
SourceLocation ToContinueLoc = Importer.Import(S->getContinueLoc());
return new (Importer.getToContext()) ContinueStmt(ToContinueLoc);
}
Stmt *ASTNodeImporter::VisitBreakStmt(BreakStmt *S) {
SourceLocation ToBreakLoc = Importer.Import(S->getBreakLoc());
return new (Importer.getToContext()) BreakStmt(ToBreakLoc);
}
Stmt *ASTNodeImporter::VisitReturnStmt(ReturnStmt *S) {
SourceLocation ToRetLoc = Importer.Import(S->getReturnLoc());
Expr *ToRetExpr = Importer.Import(S->getRetValue());
if (!ToRetExpr && S->getRetValue())
return nullptr;
VarDecl *NRVOCandidate = const_cast<VarDecl*>(S->getNRVOCandidate());
VarDecl *ToNRVOCandidate = cast_or_null<VarDecl>(Importer.Import(NRVOCandidate));
if (!ToNRVOCandidate && NRVOCandidate)
return nullptr;
return new (Importer.getToContext()) ReturnStmt(ToRetLoc, ToRetExpr,
ToNRVOCandidate);
}
Stmt *ASTNodeImporter::VisitCXXCatchStmt(CXXCatchStmt *S) {
SourceLocation ToCatchLoc = Importer.Import(S->getCatchLoc());
VarDecl *ToExceptionDecl = nullptr;
if (VarDecl *FromExceptionDecl = S->getExceptionDecl()) {
ToExceptionDecl =
dyn_cast_or_null<VarDecl>(Importer.Import(FromExceptionDecl));
if (!ToExceptionDecl)
return nullptr;
}
Stmt *ToHandlerBlock = Importer.Import(S->getHandlerBlock());
if (!ToHandlerBlock && S->getHandlerBlock())
return nullptr;
return new (Importer.getToContext()) CXXCatchStmt(ToCatchLoc,
ToExceptionDecl,
ToHandlerBlock);
}
Stmt *ASTNodeImporter::VisitCXXTryStmt(CXXTryStmt *S) {
SourceLocation ToTryLoc = Importer.Import(S->getTryLoc());
Stmt *ToTryBlock = Importer.Import(S->getTryBlock());
if (!ToTryBlock && S->getTryBlock())
return nullptr;
SmallVector<Stmt *, 1> ToHandlers(S->getNumHandlers());
for (unsigned HI = 0, HE = S->getNumHandlers(); HI != HE; ++HI) {
CXXCatchStmt *FromHandler = S->getHandler(HI);
if (Stmt *ToHandler = Importer.Import(FromHandler))
ToHandlers[HI] = ToHandler;
else
return nullptr;
}
return CXXTryStmt::Create(Importer.getToContext(), ToTryLoc, ToTryBlock,
ToHandlers);
}
Stmt *ASTNodeImporter::VisitCXXForRangeStmt(CXXForRangeStmt *S) {
DeclStmt *ToRange =
dyn_cast_or_null<DeclStmt>(Importer.Import(S->getRangeStmt()));
if (!ToRange && S->getRangeStmt())
return nullptr;
DeclStmt *ToBegin =
dyn_cast_or_null<DeclStmt>(Importer.Import(S->getBeginStmt()));
if (!ToBegin && S->getBeginStmt())
return nullptr;
DeclStmt *ToEnd =
dyn_cast_or_null<DeclStmt>(Importer.Import(S->getEndStmt()));
if (!ToEnd && S->getEndStmt())
return nullptr;
Expr *ToCond = Importer.Import(S->getCond());
if (!ToCond && S->getCond())
return nullptr;
Expr *ToInc = Importer.Import(S->getInc());
if (!ToInc && S->getInc())
return nullptr;
DeclStmt *ToLoopVar =
dyn_cast_or_null<DeclStmt>(Importer.Import(S->getLoopVarStmt()));
if (!ToLoopVar && S->getLoopVarStmt())
return nullptr;
Stmt *ToBody = Importer.Import(S->getBody());
if (!ToBody && S->getBody())
return nullptr;
SourceLocation ToForLoc = Importer.Import(S->getForLoc());
SourceLocation ToCoawaitLoc = Importer.Import(S->getCoawaitLoc());
SourceLocation ToColonLoc = Importer.Import(S->getColonLoc());
SourceLocation ToRParenLoc = Importer.Import(S->getRParenLoc());
return new (Importer.getToContext()) CXXForRangeStmt(ToRange, ToBegin, ToEnd,
ToCond, ToInc,
ToLoopVar, ToBody,
ToForLoc, ToCoawaitLoc,
ToColonLoc, ToRParenLoc);
}
Stmt *ASTNodeImporter::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
Stmt *ToElem = Importer.Import(S->getElement());
if (!ToElem && S->getElement())
return nullptr;
Expr *ToCollect = Importer.Import(S->getCollection());
if (!ToCollect && S->getCollection())
return nullptr;
Stmt *ToBody = Importer.Import(S->getBody());
if (!ToBody && S->getBody())
return nullptr;
SourceLocation ToForLoc = Importer.Import(S->getForLoc());
SourceLocation ToRParenLoc = Importer.Import(S->getRParenLoc());
return new (Importer.getToContext()) ObjCForCollectionStmt(ToElem,
ToCollect,
ToBody, ToForLoc,
ToRParenLoc);
}
Stmt *ASTNodeImporter::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
SourceLocation ToAtCatchLoc = Importer.Import(S->getAtCatchLoc());
SourceLocation ToRParenLoc = Importer.Import(S->getRParenLoc());
VarDecl *ToExceptionDecl = nullptr;
if (VarDecl *FromExceptionDecl = S->getCatchParamDecl()) {
ToExceptionDecl =
dyn_cast_or_null<VarDecl>(Importer.Import(FromExceptionDecl));
if (!ToExceptionDecl)
return nullptr;
}
Stmt *ToBody = Importer.Import(S->getCatchBody());
if (!ToBody && S->getCatchBody())
return nullptr;
return new (Importer.getToContext()) ObjCAtCatchStmt(ToAtCatchLoc,
ToRParenLoc,
ToExceptionDecl,
ToBody);
}
Stmt *ASTNodeImporter::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
SourceLocation ToAtFinallyLoc = Importer.Import(S->getAtFinallyLoc());
Stmt *ToAtFinallyStmt = Importer.Import(S->getFinallyBody());
if (!ToAtFinallyStmt && S->getFinallyBody())
return nullptr;
return new (Importer.getToContext()) ObjCAtFinallyStmt(ToAtFinallyLoc,
ToAtFinallyStmt);
}
Stmt *ASTNodeImporter::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
SourceLocation ToAtTryLoc = Importer.Import(S->getAtTryLoc());
Stmt *ToAtTryStmt = Importer.Import(S->getTryBody());
if (!ToAtTryStmt && S->getTryBody())
return nullptr;
SmallVector<Stmt *, 1> ToCatchStmts(S->getNumCatchStmts());
for (unsigned CI = 0, CE = S->getNumCatchStmts(); CI != CE; ++CI) {
ObjCAtCatchStmt *FromCatchStmt = S->getCatchStmt(CI);
if (Stmt *ToCatchStmt = Importer.Import(FromCatchStmt))
ToCatchStmts[CI] = ToCatchStmt;
else
return nullptr;
}
Stmt *ToAtFinallyStmt = Importer.Import(S->getFinallyStmt());
if (!ToAtFinallyStmt && S->getFinallyStmt())
return nullptr;
return ObjCAtTryStmt::Create(Importer.getToContext(),
ToAtTryLoc, ToAtTryStmt,
ToCatchStmts.begin(), ToCatchStmts.size(),
ToAtFinallyStmt);
}
Stmt *ASTNodeImporter::VisitObjCAtSynchronizedStmt
(ObjCAtSynchronizedStmt *S) {
SourceLocation ToAtSynchronizedLoc =
Importer.Import(S->getAtSynchronizedLoc());
Expr *ToSynchExpr = Importer.Import(S->getSynchExpr());
if (!ToSynchExpr && S->getSynchExpr())
return nullptr;
Stmt *ToSynchBody = Importer.Import(S->getSynchBody());
if (!ToSynchBody && S->getSynchBody())
return nullptr;
return new (Importer.getToContext()) ObjCAtSynchronizedStmt(
ToAtSynchronizedLoc, ToSynchExpr, ToSynchBody);
}
Stmt *ASTNodeImporter::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
SourceLocation ToAtThrowLoc = Importer.Import(S->getThrowLoc());
Expr *ToThrow = Importer.Import(S->getThrowExpr());
if (!ToThrow && S->getThrowExpr())
return nullptr;
return new (Importer.getToContext()) ObjCAtThrowStmt(ToAtThrowLoc, ToThrow);
}
Stmt *ASTNodeImporter::VisitObjCAutoreleasePoolStmt
(ObjCAutoreleasePoolStmt *S) {
SourceLocation ToAtLoc = Importer.Import(S->getAtLoc());
Stmt *ToSubStmt = Importer.Import(S->getSubStmt());
if (!ToSubStmt && S->getSubStmt())
return nullptr;
return new (Importer.getToContext()) ObjCAutoreleasePoolStmt(ToAtLoc,
ToSubStmt);
}
//----------------------------------------------------------------------------
// Import Expressions
//----------------------------------------------------------------------------
Expr *ASTNodeImporter::VisitExpr(Expr *E) {
Importer.FromDiag(E->getLocStart(), diag::err_unsupported_ast_node)
<< E->getStmtClassName();
return nullptr;
}
Expr *ASTNodeImporter::VisitVAArgExpr(VAArgExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr && E->getSubExpr())
return nullptr;
TypeSourceInfo *TInfo = Importer.Import(E->getWrittenTypeInfo());
if (!TInfo)
return nullptr;
return new (Importer.getToContext()) VAArgExpr(
Importer.Import(E->getBuiltinLoc()), SubExpr, TInfo,
Importer.Import(E->getRParenLoc()), T, E->isMicrosoftABI());
}
Expr *ASTNodeImporter::VisitGNUNullExpr(GNUNullExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
return new (Importer.getToContext()) GNUNullExpr(
T, Importer.Import(E->getLocStart()));
}
Expr *ASTNodeImporter::VisitPredefinedExpr(PredefinedExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
StringLiteral *SL = cast_or_null<StringLiteral>(
Importer.Import(E->getFunctionName()));
if (!SL && E->getFunctionName())
return nullptr;
return new (Importer.getToContext()) PredefinedExpr(
Importer.Import(E->getLocStart()), T, E->getIdentType(), SL);
}
Expr *ASTNodeImporter::VisitDeclRefExpr(DeclRefExpr *E) {
ValueDecl *ToD = cast_or_null<ValueDecl>(Importer.Import(E->getDecl()));
if (!ToD)
return nullptr;
NamedDecl *FoundD = nullptr;
if (E->getDecl() != E->getFoundDecl()) {
FoundD = cast_or_null<NamedDecl>(Importer.Import(E->getFoundDecl()));
if (!FoundD)
return nullptr;
}
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
TemplateArgumentListInfo ToTAInfo;
TemplateArgumentListInfo *ResInfo = nullptr;
if (E->hasExplicitTemplateArgs()) {
for (const auto &FromLoc : E->template_arguments()) {
bool Error = false;
TemplateArgumentLoc ToTALoc = ImportTemplateArgumentLoc(FromLoc, Error);
if (Error)
return nullptr;
ToTAInfo.addArgument(ToTALoc);
}
ResInfo = &ToTAInfo;
}
DeclRefExpr *DRE = DeclRefExpr::Create(Importer.getToContext(),
Importer.Import(E->getQualifierLoc()),
Importer.Import(E->getTemplateKeywordLoc()),
ToD,
E->refersToEnclosingVariableOrCapture(),
Importer.Import(E->getLocation()),
T, E->getValueKind(),
FoundD, ResInfo);
if (E->hadMultipleCandidates())
DRE->setHadMultipleCandidates(true);
return DRE;
}
Expr *ASTNodeImporter::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
return new (Importer.getToContext()) ImplicitValueInitExpr(T);
}
ASTNodeImporter::Designator
ASTNodeImporter::ImportDesignator(const Designator &D) {
if (D.isFieldDesignator()) {
IdentifierInfo *ToFieldName = Importer.Import(D.getFieldName());
// Caller checks for import error
return Designator(ToFieldName, Importer.Import(D.getDotLoc()),
Importer.Import(D.getFieldLoc()));
}
if (D.isArrayDesignator())
return Designator(D.getFirstExprIndex(),
Importer.Import(D.getLBracketLoc()),
Importer.Import(D.getRBracketLoc()));
assert(D.isArrayRangeDesignator());
return Designator(D.getFirstExprIndex(),
Importer.Import(D.getLBracketLoc()),
Importer.Import(D.getEllipsisLoc()),
Importer.Import(D.getRBracketLoc()));
}
Expr *ASTNodeImporter::VisitDesignatedInitExpr(DesignatedInitExpr *DIE) {
Expr *Init = cast_or_null<Expr>(Importer.Import(DIE->getInit()));
if (!Init)
return nullptr;
SmallVector<Expr *, 4> IndexExprs(DIE->getNumSubExprs() - 1);
// List elements from the second, the first is Init itself
for (unsigned I = 1, E = DIE->getNumSubExprs(); I < E; I++) {
if (Expr *Arg = cast_or_null<Expr>(Importer.Import(DIE->getSubExpr(I))))
IndexExprs[I - 1] = Arg;
else
return nullptr;
}
SmallVector<Designator, 4> Designators(DIE->size());
llvm::transform(DIE->designators(), Designators.begin(),
[this](const Designator &D) -> Designator {
return ImportDesignator(D);
});
for (const Designator &D : DIE->designators())
if (D.isFieldDesignator() && !D.getFieldName())
return nullptr;
return DesignatedInitExpr::Create(
Importer.getToContext(), Designators,
IndexExprs, Importer.Import(DIE->getEqualOrColonLoc()),
DIE->usesGNUSyntax(), Init);
}
Expr *ASTNodeImporter::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
return new (Importer.getToContext())
CXXNullPtrLiteralExpr(T, Importer.Import(E->getLocation()));
}
Expr *ASTNodeImporter::VisitIntegerLiteral(IntegerLiteral *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
return IntegerLiteral::Create(Importer.getToContext(),
E->getValue(), T,
Importer.Import(E->getLocation()));
}
Expr *ASTNodeImporter::VisitFloatingLiteral(FloatingLiteral *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
return FloatingLiteral::Create(Importer.getToContext(),
E->getValue(), E->isExact(), T,
Importer.Import(E->getLocation()));
}
Expr *ASTNodeImporter::VisitCharacterLiteral(CharacterLiteral *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
return new (Importer.getToContext()) CharacterLiteral(E->getValue(),
E->getKind(), T,
Importer.Import(E->getLocation()));
}
Expr *ASTNodeImporter::VisitStringLiteral(StringLiteral *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
SmallVector<SourceLocation, 4> Locations(E->getNumConcatenated());
ImportArray(E->tokloc_begin(), E->tokloc_end(), Locations.begin());
return StringLiteral::Create(Importer.getToContext(), E->getBytes(),
E->getKind(), E->isPascal(), T,
Locations.data(), Locations.size());
}
Expr *ASTNodeImporter::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
TypeSourceInfo *TInfo = Importer.Import(E->getTypeSourceInfo());
if (!TInfo)
return nullptr;
Expr *Init = Importer.Import(E->getInitializer());
if (!Init)
return nullptr;
return new (Importer.getToContext()) CompoundLiteralExpr(
Importer.Import(E->getLParenLoc()), TInfo, T, E->getValueKind(),
Init, E->isFileScope());
}
Expr *ASTNodeImporter::VisitAtomicExpr(AtomicExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
SmallVector<Expr *, 6> Exprs(E->getNumSubExprs());
if (ImportArrayChecked(
E->getSubExprs(), E->getSubExprs() + E->getNumSubExprs(),
Exprs.begin()))
return nullptr;
return new (Importer.getToContext()) AtomicExpr(
Importer.Import(E->getBuiltinLoc()), Exprs, T, E->getOp(),
Importer.Import(E->getRParenLoc()));
}
Expr *ASTNodeImporter::VisitAddrLabelExpr(AddrLabelExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
LabelDecl *ToLabel = cast_or_null<LabelDecl>(Importer.Import(E->getLabel()));
if (!ToLabel)
return nullptr;
return new (Importer.getToContext()) AddrLabelExpr(
Importer.Import(E->getAmpAmpLoc()), Importer.Import(E->getLabelLoc()),
ToLabel, T);
}
Expr *ASTNodeImporter::VisitParenExpr(ParenExpr *E) {
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr)
return nullptr;
return new (Importer.getToContext())
ParenExpr(Importer.Import(E->getLParen()),
Importer.Import(E->getRParen()),
SubExpr);
}
Expr *ASTNodeImporter::VisitParenListExpr(ParenListExpr *E) {
SmallVector<Expr *, 4> Exprs(E->getNumExprs());
if (ImportContainerChecked(E->exprs(), Exprs))
return nullptr;
return new (Importer.getToContext()) ParenListExpr(
Importer.getToContext(), Importer.Import(E->getLParenLoc()),
Exprs, Importer.Import(E->getLParenLoc()));
}
Expr *ASTNodeImporter::VisitStmtExpr(StmtExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
CompoundStmt *ToSubStmt = cast_or_null<CompoundStmt>(
Importer.Import(E->getSubStmt()));
if (!ToSubStmt && E->getSubStmt())
return nullptr;
return new (Importer.getToContext()) StmtExpr(ToSubStmt, T,
Importer.Import(E->getLParenLoc()), Importer.Import(E->getRParenLoc()));
}
Expr *ASTNodeImporter::VisitUnaryOperator(UnaryOperator *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr)
return nullptr;
return new (Importer.getToContext()) UnaryOperator(SubExpr, E->getOpcode(),
T, E->getValueKind(),
E->getObjectKind(),
Importer.Import(E->getOperatorLoc()));
}
Expr *ASTNodeImporter::VisitUnaryExprOrTypeTraitExpr(
UnaryExprOrTypeTraitExpr *E) {
QualType ResultType = Importer.Import(E->getType());
if (E->isArgumentType()) {
TypeSourceInfo *TInfo = Importer.Import(E->getArgumentTypeInfo());
if (!TInfo)
return nullptr;
return new (Importer.getToContext()) UnaryExprOrTypeTraitExpr(E->getKind(),
TInfo, ResultType,
Importer.Import(E->getOperatorLoc()),
Importer.Import(E->getRParenLoc()));
}
Expr *SubExpr = Importer.Import(E->getArgumentExpr());
if (!SubExpr)
return nullptr;
return new (Importer.getToContext()) UnaryExprOrTypeTraitExpr(E->getKind(),
SubExpr, ResultType,
Importer.Import(E->getOperatorLoc()),
Importer.Import(E->getRParenLoc()));
}
Expr *ASTNodeImporter::VisitBinaryOperator(BinaryOperator *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *LHS = Importer.Import(E->getLHS());
if (!LHS)
return nullptr;
Expr *RHS = Importer.Import(E->getRHS());
if (!RHS)
return nullptr;
return new (Importer.getToContext()) BinaryOperator(LHS, RHS, E->getOpcode(),
T, E->getValueKind(),
E->getObjectKind(),
Importer.Import(E->getOperatorLoc()),
E->getFPFeatures());
}
Expr *ASTNodeImporter::VisitConditionalOperator(ConditionalOperator *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *ToLHS = Importer.Import(E->getLHS());
if (!ToLHS)
return nullptr;
Expr *ToRHS = Importer.Import(E->getRHS());
if (!ToRHS)
return nullptr;
Expr *ToCond = Importer.Import(E->getCond());
if (!ToCond)
return nullptr;
return new (Importer.getToContext()) ConditionalOperator(
ToCond, Importer.Import(E->getQuestionLoc()),
ToLHS, Importer.Import(E->getColonLoc()),
ToRHS, T, E->getValueKind(), E->getObjectKind());
}
Expr *ASTNodeImporter::VisitBinaryConditionalOperator(
BinaryConditionalOperator *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *Common = Importer.Import(E->getCommon());
if (!Common)
return nullptr;
Expr *Cond = Importer.Import(E->getCond());
if (!Cond)
return nullptr;
OpaqueValueExpr *OpaqueValue = cast_or_null<OpaqueValueExpr>(
Importer.Import(E->getOpaqueValue()));
if (!OpaqueValue)
return nullptr;
Expr *TrueExpr = Importer.Import(E->getTrueExpr());
if (!TrueExpr)
return nullptr;
Expr *FalseExpr = Importer.Import(E->getFalseExpr());
if (!FalseExpr)
return nullptr;
return new (Importer.getToContext()) BinaryConditionalOperator(
Common, OpaqueValue, Cond, TrueExpr, FalseExpr,
Importer.Import(E->getQuestionLoc()), Importer.Import(E->getColonLoc()),
T, E->getValueKind(), E->getObjectKind());
}
Expr *ASTNodeImporter::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
TypeSourceInfo *ToQueried = Importer.Import(E->getQueriedTypeSourceInfo());
if (!ToQueried)
return nullptr;
Expr *Dim = Importer.Import(E->getDimensionExpression());
if (!Dim && E->getDimensionExpression())
return nullptr;
return new (Importer.getToContext()) ArrayTypeTraitExpr(
Importer.Import(E->getLocStart()), E->getTrait(), ToQueried,
E->getValue(), Dim, Importer.Import(E->getLocEnd()), T);
}
Expr *ASTNodeImporter::VisitExpressionTraitExpr(ExpressionTraitExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *ToQueried = Importer.Import(E->getQueriedExpression());
if (!ToQueried)
return nullptr;
return new (Importer.getToContext()) ExpressionTraitExpr(
Importer.Import(E->getLocStart()), E->getTrait(), ToQueried,
E->getValue(), Importer.Import(E->getLocEnd()), T);
}
Expr *ASTNodeImporter::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *SourceExpr = Importer.Import(E->getSourceExpr());
if (!SourceExpr && E->getSourceExpr())
return nullptr;
return new (Importer.getToContext()) OpaqueValueExpr(
Importer.Import(E->getLocation()), T, E->getValueKind(),
E->getObjectKind(), SourceExpr);
}
Expr *ASTNodeImporter::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *ToLHS = Importer.Import(E->getLHS());
if (!ToLHS)
return nullptr;
Expr *ToRHS = Importer.Import(E->getRHS());
if (!ToRHS)
return nullptr;
return new (Importer.getToContext()) ArraySubscriptExpr(
ToLHS, ToRHS, T, E->getValueKind(), E->getObjectKind(),
Importer.Import(E->getRBracketLoc()));
}
Expr *ASTNodeImporter::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
QualType CompLHSType = Importer.Import(E->getComputationLHSType());
if (CompLHSType.isNull())
return nullptr;
QualType CompResultType = Importer.Import(E->getComputationResultType());
if (CompResultType.isNull())
return nullptr;
Expr *LHS = Importer.Import(E->getLHS());
if (!LHS)
return nullptr;
Expr *RHS = Importer.Import(E->getRHS());
if (!RHS)
return nullptr;
return new (Importer.getToContext())
CompoundAssignOperator(LHS, RHS, E->getOpcode(),
T, E->getValueKind(),
E->getObjectKind(),
CompLHSType, CompResultType,
Importer.Import(E->getOperatorLoc()),
E->getFPFeatures());
}
bool ASTNodeImporter::ImportCastPath(CastExpr *CE, CXXCastPath &Path) {
for (auto I = CE->path_begin(), E = CE->path_end(); I != E; ++I) {
if (CXXBaseSpecifier *Spec = Importer.Import(*I))
Path.push_back(Spec);
else
return true;
}
return false;
}
Expr *ASTNodeImporter::VisitImplicitCastExpr(ImplicitCastExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr)
return nullptr;
CXXCastPath BasePath;
if (ImportCastPath(E, BasePath))
return nullptr;
return ImplicitCastExpr::Create(Importer.getToContext(), T, E->getCastKind(),
SubExpr, &BasePath, E->getValueKind());
}
Expr *ASTNodeImporter::VisitExplicitCastExpr(ExplicitCastExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr)
return nullptr;
TypeSourceInfo *TInfo = Importer.Import(E->getTypeInfoAsWritten());
if (!TInfo && E->getTypeInfoAsWritten())
return nullptr;
CXXCastPath BasePath;
if (ImportCastPath(E, BasePath))
return nullptr;
switch (E->getStmtClass()) {
case Stmt::CStyleCastExprClass: {
CStyleCastExpr *CCE = cast<CStyleCastExpr>(E);
return CStyleCastExpr::Create(Importer.getToContext(), T,
E->getValueKind(), E->getCastKind(),
SubExpr, &BasePath, TInfo,
Importer.Import(CCE->getLParenLoc()),
Importer.Import(CCE->getRParenLoc()));
}
case Stmt::CXXFunctionalCastExprClass: {
CXXFunctionalCastExpr *FCE = cast<CXXFunctionalCastExpr>(E);
return CXXFunctionalCastExpr::Create(Importer.getToContext(), T,
E->getValueKind(), TInfo,
E->getCastKind(), SubExpr, &BasePath,
Importer.Import(FCE->getLParenLoc()),
Importer.Import(FCE->getRParenLoc()));
}
case Stmt::ObjCBridgedCastExprClass: {
ObjCBridgedCastExpr *OCE = cast<ObjCBridgedCastExpr>(E);
return new (Importer.getToContext()) ObjCBridgedCastExpr(
Importer.Import(OCE->getLParenLoc()), OCE->getBridgeKind(),
E->getCastKind(), Importer.Import(OCE->getBridgeKeywordLoc()),
TInfo, SubExpr);
}
default:
break; // just fall through
}
CXXNamedCastExpr *Named = cast<CXXNamedCastExpr>(E);
SourceLocation ExprLoc = Importer.Import(Named->getOperatorLoc()),
RParenLoc = Importer.Import(Named->getRParenLoc());
SourceRange Brackets = Importer.Import(Named->getAngleBrackets());
switch (E->getStmtClass()) {
case Stmt::CXXStaticCastExprClass:
return CXXStaticCastExpr::Create(Importer.getToContext(), T,
E->getValueKind(), E->getCastKind(),
SubExpr, &BasePath, TInfo,
ExprLoc, RParenLoc, Brackets);
case Stmt::CXXDynamicCastExprClass:
return CXXDynamicCastExpr::Create(Importer.getToContext(), T,
E->getValueKind(), E->getCastKind(),
SubExpr, &BasePath, TInfo,
ExprLoc, RParenLoc, Brackets);
case Stmt::CXXReinterpretCastExprClass:
return CXXReinterpretCastExpr::Create(Importer.getToContext(), T,
E->getValueKind(), E->getCastKind(),
SubExpr, &BasePath, TInfo,
ExprLoc, RParenLoc, Brackets);
case Stmt::CXXConstCastExprClass:
return CXXConstCastExpr::Create(Importer.getToContext(), T,
E->getValueKind(), SubExpr, TInfo, ExprLoc,
RParenLoc, Brackets);
default:
llvm_unreachable("Cast expression of unsupported type!");
return nullptr;
}
}
Expr *ASTNodeImporter::VisitOffsetOfExpr(OffsetOfExpr *OE) {
QualType T = Importer.Import(OE->getType());
if (T.isNull())
return nullptr;
SmallVector<OffsetOfNode, 4> Nodes;
for (int I = 0, E = OE->getNumComponents(); I < E; ++I) {
const OffsetOfNode &Node = OE->getComponent(I);
switch (Node.getKind()) {
case OffsetOfNode::Array:
Nodes.push_back(OffsetOfNode(Importer.Import(Node.getLocStart()),
Node.getArrayExprIndex(),
Importer.Import(Node.getLocEnd())));
break;
case OffsetOfNode::Base: {
CXXBaseSpecifier *BS = Importer.Import(Node.getBase());
if (!BS && Node.getBase())
return nullptr;
Nodes.push_back(OffsetOfNode(BS));
break;
}
case OffsetOfNode::Field: {
FieldDecl *FD = cast_or_null<FieldDecl>(Importer.Import(Node.getField()));
if (!FD)
return nullptr;
Nodes.push_back(OffsetOfNode(Importer.Import(Node.getLocStart()), FD,
Importer.Import(Node.getLocEnd())));
break;
}
case OffsetOfNode::Identifier: {
IdentifierInfo *ToII = Importer.Import(Node.getFieldName());
if (!ToII)
return nullptr;
Nodes.push_back(OffsetOfNode(Importer.Import(Node.getLocStart()), ToII,
Importer.Import(Node.getLocEnd())));
break;
}
}
}
SmallVector<Expr *, 4> Exprs(OE->getNumExpressions());
for (int I = 0, E = OE->getNumExpressions(); I < E; ++I) {
Expr *ToIndexExpr = Importer.Import(OE->getIndexExpr(I));
if (!ToIndexExpr)
return nullptr;
Exprs[I] = ToIndexExpr;
}
TypeSourceInfo *TInfo = Importer.Import(OE->getTypeSourceInfo());
if (!TInfo && OE->getTypeSourceInfo())
return nullptr;
return OffsetOfExpr::Create(Importer.getToContext(), T,
Importer.Import(OE->getOperatorLoc()),
TInfo, Nodes, Exprs,
Importer.Import(OE->getRParenLoc()));
}
Expr *ASTNodeImporter::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *Operand = Importer.Import(E->getOperand());
if (!Operand)
return nullptr;
CanThrowResult CanThrow;
if (E->isValueDependent())
CanThrow = CT_Dependent;
else
CanThrow = E->getValue() ? CT_Can : CT_Cannot;
return new (Importer.getToContext()) CXXNoexceptExpr(
T, Operand, CanThrow,
Importer.Import(E->getLocStart()), Importer.Import(E->getLocEnd()));
}
Expr *ASTNodeImporter::VisitCXXThrowExpr(CXXThrowExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr && E->getSubExpr())
return nullptr;
return new (Importer.getToContext()) CXXThrowExpr(
SubExpr, T, Importer.Import(E->getThrowLoc()),
E->isThrownVariableInScope());
}
Expr *ASTNodeImporter::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
ParmVarDecl *Param = cast_or_null<ParmVarDecl>(
Importer.Import(E->getParam()));
if (!Param)
return nullptr;
return CXXDefaultArgExpr::Create(
Importer.getToContext(), Importer.Import(E->getUsedLocation()), Param);
}
Expr *ASTNodeImporter::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
TypeSourceInfo *TypeInfo = Importer.Import(E->getTypeSourceInfo());
if (!TypeInfo)
return nullptr;
return new (Importer.getToContext()) CXXScalarValueInitExpr(
T, TypeInfo, Importer.Import(E->getRParenLoc()));
}
Expr *ASTNodeImporter::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr)
return nullptr;
auto *Dtor = cast_or_null<CXXDestructorDecl>(
Importer.Import(const_cast<CXXDestructorDecl *>(
E->getTemporary()->getDestructor())));
if (!Dtor)
return nullptr;
ASTContext &ToCtx = Importer.getToContext();
CXXTemporary *Temp = CXXTemporary::Create(ToCtx, Dtor);
return CXXBindTemporaryExpr::Create(ToCtx, Temp, SubExpr);
}
Expr *ASTNodeImporter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *CE) {
QualType T = Importer.Import(CE->getType());
if (T.isNull())
return nullptr;
SmallVector<Expr *, 8> Args(CE->getNumArgs());
if (ImportContainerChecked(CE->arguments(), Args))
return nullptr;
auto *Ctor = cast_or_null<CXXConstructorDecl>(
Importer.Import(CE->getConstructor()));
if (!Ctor)
return nullptr;
return CXXTemporaryObjectExpr::Create(
Importer.getToContext(), T,
Importer.Import(CE->getLocStart()),
Ctor,
CE->isElidable(),
Args,
CE->hadMultipleCandidates(),
CE->isListInitialization(),
CE->isStdInitListInitialization(),
CE->requiresZeroInitialization(),
CE->getConstructionKind(),
Importer.Import(CE->getParenOrBraceRange()));
}
Expr *
ASTNodeImporter::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *TempE = Importer.Import(E->GetTemporaryExpr());
if (!TempE)
return nullptr;
ValueDecl *ExtendedBy = cast_or_null<ValueDecl>(
Importer.Import(const_cast<ValueDecl *>(E->getExtendingDecl())));
if (!ExtendedBy && E->getExtendingDecl())
return nullptr;
auto *ToMTE = new (Importer.getToContext()) MaterializeTemporaryExpr(
T, TempE, E->isBoundToLvalueReference());
// FIXME: Should ManglingNumber get numbers associated with 'to' context?
ToMTE->setExtendingDecl(ExtendedBy, E->getManglingNumber());
return ToMTE;
}
Expr *ASTNodeImporter::VisitCXXNewExpr(CXXNewExpr *CE) {
QualType T = Importer.Import(CE->getType());
if (T.isNull())
return nullptr;
SmallVector<Expr *, 4> PlacementArgs(CE->getNumPlacementArgs());
if (ImportContainerChecked(CE->placement_arguments(), PlacementArgs))
return nullptr;
FunctionDecl *OperatorNewDecl = cast_or_null<FunctionDecl>(
Importer.Import(CE->getOperatorNew()));
if (!OperatorNewDecl && CE->getOperatorNew())
return nullptr;
FunctionDecl *OperatorDeleteDecl = cast_or_null<FunctionDecl>(
Importer.Import(CE->getOperatorDelete()));
if (!OperatorDeleteDecl && CE->getOperatorDelete())
return nullptr;
Expr *ToInit = Importer.Import(CE->getInitializer());
if (!ToInit && CE->getInitializer())
return nullptr;
TypeSourceInfo *TInfo = Importer.Import(CE->getAllocatedTypeSourceInfo());
if (!TInfo)
return nullptr;
Expr *ToArrSize = Importer.Import(CE->getArraySize());
if (!ToArrSize && CE->getArraySize())
return nullptr;
return new (Importer.getToContext()) CXXNewExpr(
Importer.getToContext(),
CE->isGlobalNew(),
OperatorNewDecl, OperatorDeleteDecl,
CE->passAlignment(),
CE->doesUsualArrayDeleteWantSize(),
PlacementArgs,
Importer.Import(CE->getTypeIdParens()),
ToArrSize, CE->getInitializationStyle(), ToInit, T, TInfo,
Importer.Import(CE->getSourceRange()),
Importer.Import(CE->getDirectInitRange()));
}
Expr *ASTNodeImporter::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
FunctionDecl *OperatorDeleteDecl = cast_or_null<FunctionDecl>(
Importer.Import(E->getOperatorDelete()));
if (!OperatorDeleteDecl && E->getOperatorDelete())
return nullptr;
Expr *ToArg = Importer.Import(E->getArgument());
if (!ToArg && E->getArgument())
return nullptr;
return new (Importer.getToContext()) CXXDeleteExpr(
T, E->isGlobalDelete(),
E->isArrayForm(),
E->isArrayFormAsWritten(),
E->doesUsualArrayDeleteWantSize(),
OperatorDeleteDecl,
ToArg,
Importer.Import(E->getLocStart()));
}
Expr *ASTNodeImporter::VisitCXXConstructExpr(CXXConstructExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
CXXConstructorDecl *ToCCD =
dyn_cast_or_null<CXXConstructorDecl>(Importer.Import(E->getConstructor()));
if (!ToCCD)
return nullptr;
SmallVector<Expr *, 6> ToArgs(E->getNumArgs());
if (ImportContainerChecked(E->arguments(), ToArgs))
return nullptr;
return CXXConstructExpr::Create(Importer.getToContext(), T,
Importer.Import(E->getLocation()),
ToCCD, E->isElidable(),
ToArgs, E->hadMultipleCandidates(),
E->isListInitialization(),
E->isStdInitListInitialization(),
E->requiresZeroInitialization(),
E->getConstructionKind(),
Importer.Import(E->getParenOrBraceRange()));
}
Expr *ASTNodeImporter::VisitExprWithCleanups(ExprWithCleanups *EWC) {
Expr *SubExpr = Importer.Import(EWC->getSubExpr());
if (!SubExpr && EWC->getSubExpr())
return nullptr;
SmallVector<ExprWithCleanups::CleanupObject, 8> Objs(EWC->getNumObjects());
for (unsigned I = 0, E = EWC->getNumObjects(); I < E; I++)
if (ExprWithCleanups::CleanupObject Obj =
cast_or_null<BlockDecl>(Importer.Import(EWC->getObject(I))))
Objs[I] = Obj;
else
return nullptr;
return ExprWithCleanups::Create(Importer.getToContext(),
SubExpr, EWC->cleanupsHaveSideEffects(),
Objs);
}
Expr *ASTNodeImporter::VisitCXXMemberCallExpr(CXXMemberCallExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *ToFn = Importer.Import(E->getCallee());
if (!ToFn)
return nullptr;
SmallVector<Expr *, 4> ToArgs(E->getNumArgs());
if (ImportContainerChecked(E->arguments(), ToArgs))
return nullptr;
return new (Importer.getToContext()) CXXMemberCallExpr(
Importer.getToContext(), ToFn, ToArgs, T, E->getValueKind(),
Importer.Import(E->getRParenLoc()));
}
Expr *ASTNodeImporter::VisitCXXThisExpr(CXXThisExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
return new (Importer.getToContext())
CXXThisExpr(Importer.Import(E->getLocation()), T, E->isImplicit());
}
Expr *ASTNodeImporter::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
return new (Importer.getToContext())
CXXBoolLiteralExpr(E->getValue(), T, Importer.Import(E->getLocation()));
}
Expr *ASTNodeImporter::VisitMemberExpr(MemberExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *ToBase = Importer.Import(E->getBase());
if (!ToBase && E->getBase())
return nullptr;
ValueDecl *ToMember = dyn_cast<ValueDecl>(Importer.Import(E->getMemberDecl()));
if (!ToMember && E->getMemberDecl())
return nullptr;
DeclAccessPair ToFoundDecl = DeclAccessPair::make(
dyn_cast<NamedDecl>(Importer.Import(E->getFoundDecl().getDecl())),
E->getFoundDecl().getAccess());
DeclarationNameInfo ToMemberNameInfo(
Importer.Import(E->getMemberNameInfo().getName()),
Importer.Import(E->getMemberNameInfo().getLoc()));
if (E->hasExplicitTemplateArgs()) {
return nullptr; // FIXME: handle template arguments
}
return MemberExpr::Create(Importer.getToContext(), ToBase,
E->isArrow(),
Importer.Import(E->getOperatorLoc()),
Importer.Import(E->getQualifierLoc()),
Importer.Import(E->getTemplateKeywordLoc()),
ToMember, ToFoundDecl, ToMemberNameInfo,
nullptr, T, E->getValueKind(),
E->getObjectKind());
}
Expr *ASTNodeImporter::VisitCallExpr(CallExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
Expr *ToCallee = Importer.Import(E->getCallee());
if (!ToCallee && E->getCallee())
return nullptr;
unsigned NumArgs = E->getNumArgs();
llvm::SmallVector<Expr *, 2> ToArgs(NumArgs);
for (unsigned ai = 0, ae = NumArgs; ai != ae; ++ai) {
Expr *FromArg = E->getArg(ai);
Expr *ToArg = Importer.Import(FromArg);
if (!ToArg)
return nullptr;
ToArgs[ai] = ToArg;
}
Expr **ToArgs_Copied = new (Importer.getToContext())
Expr*[NumArgs];
for (unsigned ai = 0, ae = NumArgs; ai != ae; ++ai)
ToArgs_Copied[ai] = ToArgs[ai];
return new (Importer.getToContext())
CallExpr(Importer.getToContext(), ToCallee,
llvm::makeArrayRef(ToArgs_Copied, NumArgs), T, E->getValueKind(),
Importer.Import(E->getRParenLoc()));
}
Expr *ASTNodeImporter::VisitInitListExpr(InitListExpr *ILE) {
QualType T = Importer.Import(ILE->getType());
if (T.isNull())
return nullptr;
llvm::SmallVector<Expr *, 4> Exprs(ILE->getNumInits());
if (ImportContainerChecked(ILE->inits(), Exprs))
return nullptr;
ASTContext &ToCtx = Importer.getToContext();
InitListExpr *To = new (ToCtx) InitListExpr(
ToCtx, Importer.Import(ILE->getLBraceLoc()),
Exprs, Importer.Import(ILE->getLBraceLoc()));
To->setType(T);
if (ILE->hasArrayFiller()) {
Expr *Filler = Importer.Import(ILE->getArrayFiller());
if (!Filler)
return nullptr;
To->setArrayFiller(Filler);
}
if (FieldDecl *FromFD = ILE->getInitializedFieldInUnion()) {
FieldDecl *ToFD = cast_or_null<FieldDecl>(Importer.Import(FromFD));
if (!ToFD)
return nullptr;
To->setInitializedFieldInUnion(ToFD);
}
if (InitListExpr *SyntForm = ILE->getSyntacticForm()) {
InitListExpr *ToSyntForm = cast_or_null<InitListExpr>(
Importer.Import(SyntForm));
if (!ToSyntForm)
return nullptr;
To->setSyntacticForm(ToSyntForm);
}
To->sawArrayRangeDesignator(ILE->hadArrayRangeDesignator());
To->setValueDependent(ILE->isValueDependent());
To->setInstantiationDependent(ILE->isInstantiationDependent());
return To;
}
Expr *ASTNodeImporter::VisitArrayInitLoopExpr(ArrayInitLoopExpr *E) {
QualType ToType = Importer.Import(E->getType());
if (ToType.isNull())
return nullptr;
Expr *ToCommon = Importer.Import(E->getCommonExpr());
if (!ToCommon && E->getCommonExpr())
return nullptr;
Expr *ToSubExpr = Importer.Import(E->getSubExpr());
if (!ToSubExpr && E->getSubExpr())
return nullptr;
return new (Importer.getToContext())
ArrayInitLoopExpr(ToType, ToCommon, ToSubExpr);
}
Expr *ASTNodeImporter::VisitArrayInitIndexExpr(ArrayInitIndexExpr *E) {
QualType ToType = Importer.Import(E->getType());
if (ToType.isNull())
return nullptr;
return new (Importer.getToContext()) ArrayInitIndexExpr(ToType);
}
Expr *ASTNodeImporter::VisitCXXDefaultInitExpr(CXXDefaultInitExpr *DIE) {
FieldDecl *ToField = llvm::dyn_cast_or_null<FieldDecl>(
Importer.Import(DIE->getField()));
if (!ToField && DIE->getField())
return nullptr;
return CXXDefaultInitExpr::Create(
Importer.getToContext(), Importer.Import(DIE->getLocStart()), ToField);
}
Expr *ASTNodeImporter::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
QualType ToType = Importer.Import(E->getType());
if (ToType.isNull() && !E->getType().isNull())
return nullptr;
ExprValueKind VK = E->getValueKind();
CastKind CK = E->getCastKind();
Expr *ToOp = Importer.Import(E->getSubExpr());
if (!ToOp && E->getSubExpr())
return nullptr;
CXXCastPath BasePath;
if (ImportCastPath(E, BasePath))
return nullptr;
TypeSourceInfo *ToWritten = Importer.Import(E->getTypeInfoAsWritten());
SourceLocation ToOperatorLoc = Importer.Import(E->getOperatorLoc());
SourceLocation ToRParenLoc = Importer.Import(E->getRParenLoc());
SourceRange ToAngleBrackets = Importer.Import(E->getAngleBrackets());
if (isa<CXXStaticCastExpr>(E)) {
return CXXStaticCastExpr::Create(
Importer.getToContext(), ToType, VK, CK, ToOp, &BasePath,
ToWritten, ToOperatorLoc, ToRParenLoc, ToAngleBrackets);
} else if (isa<CXXDynamicCastExpr>(E)) {
return CXXDynamicCastExpr::Create(
Importer.getToContext(), ToType, VK, CK, ToOp, &BasePath,
ToWritten, ToOperatorLoc, ToRParenLoc, ToAngleBrackets);
} else if (isa<CXXReinterpretCastExpr>(E)) {
return CXXReinterpretCastExpr::Create(
Importer.getToContext(), ToType, VK, CK, ToOp, &BasePath,
ToWritten, ToOperatorLoc, ToRParenLoc, ToAngleBrackets);
} else {
return nullptr;
}
}
Expr *ASTNodeImporter::VisitSubstNonTypeTemplateParmExpr(
SubstNonTypeTemplateParmExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return nullptr;
NonTypeTemplateParmDecl *Param = cast_or_null<NonTypeTemplateParmDecl>(
Importer.Import(E->getParameter()));
if (!Param)
return nullptr;
Expr *Replacement = Importer.Import(E->getReplacement());
if (!Replacement)
return nullptr;
return new (Importer.getToContext()) SubstNonTypeTemplateParmExpr(
T, E->getValueKind(), Importer.Import(E->getExprLoc()), Param,
Replacement);
}
ASTImporter::ASTImporter(ASTContext &ToContext, FileManager &ToFileManager,
ASTContext &FromContext, FileManager &FromFileManager,
bool MinimalImport)
: ToContext(ToContext), FromContext(FromContext),
ToFileManager(ToFileManager), FromFileManager(FromFileManager),
Minimal(MinimalImport), LastDiagFromFrom(false)
{
ImportedDecls[FromContext.getTranslationUnitDecl()]
= ToContext.getTranslationUnitDecl();
}
ASTImporter::~ASTImporter() { }
QualType ASTImporter::Import(QualType FromT) {
if (FromT.isNull())
return QualType();
const Type *fromTy = FromT.getTypePtr();
// Check whether we've already imported this type.
llvm::DenseMap<const Type *, const Type *>::iterator Pos
= ImportedTypes.find(fromTy);
if (Pos != ImportedTypes.end())
return ToContext.getQualifiedType(Pos->second, FromT.getLocalQualifiers());
// Import the type
ASTNodeImporter Importer(*this);
QualType ToT = Importer.Visit(fromTy);
if (ToT.isNull())
return ToT;
// Record the imported type.
ImportedTypes[fromTy] = ToT.getTypePtr();
return ToContext.getQualifiedType(ToT, FromT.getLocalQualifiers());
}
TypeSourceInfo *ASTImporter::Import(TypeSourceInfo *FromTSI) {
if (!FromTSI)
return FromTSI;
// FIXME: For now we just create a "trivial" type source info based
// on the type and a single location. Implement a real version of this.
QualType T = Import(FromTSI->getType());
if (T.isNull())
return nullptr;
return ToContext.getTrivialTypeSourceInfo(T,
Import(FromTSI->getTypeLoc().getLocStart()));
}
Decl *ASTImporter::GetAlreadyImportedOrNull(Decl *FromD) {
llvm::DenseMap<Decl *, Decl *>::iterator Pos = ImportedDecls.find(FromD);
if (Pos != ImportedDecls.end()) {
Decl *ToD = Pos->second;
ASTNodeImporter(*this).ImportDefinitionIfNeeded(FromD, ToD);
return ToD;
} else {
return nullptr;
}
}
Decl *ASTImporter::Import(Decl *FromD) {
if (!FromD)
return nullptr;
ASTNodeImporter Importer(*this);
// Check whether we've already imported this declaration.
llvm::DenseMap<Decl *, Decl *>::iterator Pos = ImportedDecls.find(FromD);
if (Pos != ImportedDecls.end()) {
Decl *ToD = Pos->second;
Importer.ImportDefinitionIfNeeded(FromD, ToD);
return ToD;
}
// Import the type
Decl *ToD = Importer.Visit(FromD);
if (!ToD)
return nullptr;
// Record the imported declaration.
ImportedDecls[FromD] = ToD;
if (TagDecl *FromTag = dyn_cast<TagDecl>(FromD)) {
// Keep track of anonymous tags that have an associated typedef.
if (FromTag->getTypedefNameForAnonDecl())
AnonTagsWithPendingTypedefs.push_back(FromTag);
} else if (TypedefNameDecl *FromTypedef = dyn_cast<TypedefNameDecl>(FromD)) {
// When we've finished transforming a typedef, see whether it was the
// typedef for an anonymous tag.
for (SmallVectorImpl<TagDecl *>::iterator
FromTag = AnonTagsWithPendingTypedefs.begin(),
FromTagEnd = AnonTagsWithPendingTypedefs.end();
FromTag != FromTagEnd; ++FromTag) {
if ((*FromTag)->getTypedefNameForAnonDecl() == FromTypedef) {
if (TagDecl *ToTag = cast_or_null<TagDecl>(Import(*FromTag))) {
// We found the typedef for an anonymous tag; link them.
ToTag->setTypedefNameForAnonDecl(cast<TypedefNameDecl>(ToD));
AnonTagsWithPendingTypedefs.erase(FromTag);
break;
}
}
}
}
return ToD;
}
DeclContext *ASTImporter::ImportContext(DeclContext *FromDC) {
if (!FromDC)
return FromDC;
DeclContext *ToDC = cast_or_null<DeclContext>(Import(cast<Decl>(FromDC)));
if (!ToDC)
return nullptr;
// When we're using a record/enum/Objective-C class/protocol as a context, we
// need it to have a definition.
if (RecordDecl *ToRecord = dyn_cast<RecordDecl>(ToDC)) {
RecordDecl *FromRecord = cast<RecordDecl>(FromDC);
if (ToRecord->isCompleteDefinition()) {
// Do nothing.
} else if (FromRecord->isCompleteDefinition()) {
ASTNodeImporter(*this).ImportDefinition(FromRecord, ToRecord,
ASTNodeImporter::IDK_Basic);
} else {
CompleteDecl(ToRecord);
}
} else if (EnumDecl *ToEnum = dyn_cast<EnumDecl>(ToDC)) {
EnumDecl *FromEnum = cast<EnumDecl>(FromDC);
if (ToEnum->isCompleteDefinition()) {
// Do nothing.
} else if (FromEnum->isCompleteDefinition()) {
ASTNodeImporter(*this).ImportDefinition(FromEnum, ToEnum,
ASTNodeImporter::IDK_Basic);
} else {
CompleteDecl(ToEnum);
}
} else if (ObjCInterfaceDecl *ToClass = dyn_cast<ObjCInterfaceDecl>(ToDC)) {
ObjCInterfaceDecl *FromClass = cast<ObjCInterfaceDecl>(FromDC);
if (ToClass->getDefinition()) {
// Do nothing.
} else if (ObjCInterfaceDecl *FromDef = FromClass->getDefinition()) {
ASTNodeImporter(*this).ImportDefinition(FromDef, ToClass,
ASTNodeImporter::IDK_Basic);
} else {
CompleteDecl(ToClass);
}
} else if (ObjCProtocolDecl *ToProto = dyn_cast<ObjCProtocolDecl>(ToDC)) {
ObjCProtocolDecl *FromProto = cast<ObjCProtocolDecl>(FromDC);
if (ToProto->getDefinition()) {
// Do nothing.
} else if (ObjCProtocolDecl *FromDef = FromProto->getDefinition()) {
ASTNodeImporter(*this).ImportDefinition(FromDef, ToProto,
ASTNodeImporter::IDK_Basic);
} else {
CompleteDecl(ToProto);
}
}
return ToDC;
}
Expr *ASTImporter::Import(Expr *FromE) {
if (!FromE)
return nullptr;
return cast_or_null<Expr>(Import(cast<Stmt>(FromE)));
}
Stmt *ASTImporter::Import(Stmt *FromS) {
if (!FromS)
return nullptr;
// Check whether we've already imported this declaration.
llvm::DenseMap<Stmt *, Stmt *>::iterator Pos = ImportedStmts.find(FromS);
if (Pos != ImportedStmts.end())
return Pos->second;
// Import the type
ASTNodeImporter Importer(*this);
Stmt *ToS = Importer.Visit(FromS);
if (!ToS)
return nullptr;
// Record the imported declaration.
ImportedStmts[FromS] = ToS;
return ToS;
}
NestedNameSpecifier *ASTImporter::Import(NestedNameSpecifier *FromNNS) {
if (!FromNNS)
return nullptr;
NestedNameSpecifier *prefix = Import(FromNNS->getPrefix());
switch (FromNNS->getKind()) {
case NestedNameSpecifier::Identifier:
if (IdentifierInfo *II = Import(FromNNS->getAsIdentifier())) {
return NestedNameSpecifier::Create(ToContext, prefix, II);
}
return nullptr;
case NestedNameSpecifier::Namespace:
if (NamespaceDecl *NS =
cast_or_null<NamespaceDecl>(Import(FromNNS->getAsNamespace()))) {
return NestedNameSpecifier::Create(ToContext, prefix, NS);
}
return nullptr;
case NestedNameSpecifier::NamespaceAlias:
if (NamespaceAliasDecl *NSAD =
cast_or_null<NamespaceAliasDecl>(Import(FromNNS->getAsNamespaceAlias()))) {
return NestedNameSpecifier::Create(ToContext, prefix, NSAD);
}
return nullptr;
case NestedNameSpecifier::Global:
return NestedNameSpecifier::GlobalSpecifier(ToContext);
case NestedNameSpecifier::Super:
if (CXXRecordDecl *RD =
cast_or_null<CXXRecordDecl>(Import(FromNNS->getAsRecordDecl()))) {
return NestedNameSpecifier::SuperSpecifier(ToContext, RD);
}
return nullptr;
case NestedNameSpecifier::TypeSpec:
case NestedNameSpecifier::TypeSpecWithTemplate: {
QualType T = Import(QualType(FromNNS->getAsType(), 0u));
if (!T.isNull()) {
bool bTemplate = FromNNS->getKind() ==
NestedNameSpecifier::TypeSpecWithTemplate;
return NestedNameSpecifier::Create(ToContext, prefix,
bTemplate, T.getTypePtr());
}
}
return nullptr;
}
llvm_unreachable("Invalid nested name specifier kind");
}
NestedNameSpecifierLoc ASTImporter::Import(NestedNameSpecifierLoc FromNNS) {
// Copied from NestedNameSpecifier mostly.
SmallVector<NestedNameSpecifierLoc , 8> NestedNames;
NestedNameSpecifierLoc NNS = FromNNS;
// Push each of the nested-name-specifiers's onto a stack for
// serialization in reverse order.
while (NNS) {
NestedNames.push_back(NNS);
NNS = NNS.getPrefix();
}
NestedNameSpecifierLocBuilder Builder;
while (!NestedNames.empty()) {
NNS = NestedNames.pop_back_val();
NestedNameSpecifier *Spec = Import(NNS.getNestedNameSpecifier());
if (!Spec)
return NestedNameSpecifierLoc();
NestedNameSpecifier::SpecifierKind Kind = Spec->getKind();
switch (Kind) {
case NestedNameSpecifier::Identifier:
Builder.Extend(getToContext(),
Spec->getAsIdentifier(),
Import(NNS.getLocalBeginLoc()),
Import(NNS.getLocalEndLoc()));
break;
case NestedNameSpecifier::Namespace:
Builder.Extend(getToContext(),
Spec->getAsNamespace(),
Import(NNS.getLocalBeginLoc()),
Import(NNS.getLocalEndLoc()));
break;
case NestedNameSpecifier::NamespaceAlias:
Builder.Extend(getToContext(),
Spec->getAsNamespaceAlias(),
Import(NNS.getLocalBeginLoc()),
Import(NNS.getLocalEndLoc()));
break;
case NestedNameSpecifier::TypeSpec:
case NestedNameSpecifier::TypeSpecWithTemplate: {
TypeSourceInfo *TSI = getToContext().getTrivialTypeSourceInfo(
QualType(Spec->getAsType(), 0));
Builder.Extend(getToContext(),
Import(NNS.getLocalBeginLoc()),
TSI->getTypeLoc(),
Import(NNS.getLocalEndLoc()));
break;
}
case NestedNameSpecifier::Global:
Builder.MakeGlobal(getToContext(), Import(NNS.getLocalBeginLoc()));
break;
case NestedNameSpecifier::Super: {
SourceRange ToRange = Import(NNS.getSourceRange());
Builder.MakeSuper(getToContext(),
Spec->getAsRecordDecl(),
ToRange.getBegin(),
ToRange.getEnd());
}
}
}
return Builder.getWithLocInContext(getToContext());
}
TemplateName ASTImporter::Import(TemplateName From) {
switch (From.getKind()) {
case TemplateName::Template:
if (TemplateDecl *ToTemplate
= cast_or_null<TemplateDecl>(Import(From.getAsTemplateDecl())))
return TemplateName(ToTemplate);
return TemplateName();
case TemplateName::OverloadedTemplate: {
OverloadedTemplateStorage *FromStorage = From.getAsOverloadedTemplate();
UnresolvedSet<2> ToTemplates;
for (OverloadedTemplateStorage::iterator I = FromStorage->begin(),
E = FromStorage->end();
I != E; ++I) {
if (NamedDecl *To = cast_or_null<NamedDecl>(Import(*I)))
ToTemplates.addDecl(To);
else
return TemplateName();
}
return ToContext.getOverloadedTemplateName(ToTemplates.begin(),
ToTemplates.end());
}
case TemplateName::QualifiedTemplate: {
QualifiedTemplateName *QTN = From.getAsQualifiedTemplateName();
NestedNameSpecifier *Qualifier = Import(QTN->getQualifier());
if (!Qualifier)
return TemplateName();
if (TemplateDecl *ToTemplate
= cast_or_null<TemplateDecl>(Import(From.getAsTemplateDecl())))
return ToContext.getQualifiedTemplateName(Qualifier,
QTN->hasTemplateKeyword(),
ToTemplate);
return TemplateName();
}
case TemplateName::DependentTemplate: {
DependentTemplateName *DTN = From.getAsDependentTemplateName();
NestedNameSpecifier *Qualifier = Import(DTN->getQualifier());
if (!Qualifier)
return TemplateName();
if (DTN->isIdentifier()) {
return ToContext.getDependentTemplateName(Qualifier,
Import(DTN->getIdentifier()));
}
return ToContext.getDependentTemplateName(Qualifier, DTN->getOperator());
}
case TemplateName::SubstTemplateTemplateParm: {
SubstTemplateTemplateParmStorage *subst
= From.getAsSubstTemplateTemplateParm();
TemplateTemplateParmDecl *param
= cast_or_null<TemplateTemplateParmDecl>(Import(subst->getParameter()));
if (!param)
return TemplateName();
TemplateName replacement = Import(subst->getReplacement());
if (replacement.isNull()) return TemplateName();
return ToContext.getSubstTemplateTemplateParm(param, replacement);
}
case TemplateName::SubstTemplateTemplateParmPack: {
SubstTemplateTemplateParmPackStorage *SubstPack
= From.getAsSubstTemplateTemplateParmPack();
TemplateTemplateParmDecl *Param
= cast_or_null<TemplateTemplateParmDecl>(
Import(SubstPack->getParameterPack()));
if (!Param)
return TemplateName();
ASTNodeImporter Importer(*this);
TemplateArgument ArgPack
= Importer.ImportTemplateArgument(SubstPack->getArgumentPack());
if (ArgPack.isNull())
return TemplateName();
return ToContext.getSubstTemplateTemplateParmPack(Param, ArgPack);
}
}
llvm_unreachable("Invalid template name kind");
}
SourceLocation ASTImporter::Import(SourceLocation FromLoc) {
if (FromLoc.isInvalid())
return SourceLocation();
SourceManager &FromSM = FromContext.getSourceManager();
// For now, map everything down to its file location, so that we
// don't have to import macro expansions.
// FIXME: Import macro expansions!
FromLoc = FromSM.getFileLoc(FromLoc);
std::pair<FileID, unsigned> Decomposed = FromSM.getDecomposedLoc(FromLoc);
SourceManager &ToSM = ToContext.getSourceManager();
FileID ToFileID = Import(Decomposed.first);
if (ToFileID.isInvalid())
return SourceLocation();
SourceLocation ret = ToSM.getLocForStartOfFile(ToFileID)
.getLocWithOffset(Decomposed.second);
return ret;
}
SourceRange ASTImporter::Import(SourceRange FromRange) {
return SourceRange(Import(FromRange.getBegin()), Import(FromRange.getEnd()));
}
FileID ASTImporter::Import(FileID FromID) {
llvm::DenseMap<FileID, FileID>::iterator Pos
= ImportedFileIDs.find(FromID);
if (Pos != ImportedFileIDs.end())
return Pos->second;
SourceManager &FromSM = FromContext.getSourceManager();
SourceManager &ToSM = ToContext.getSourceManager();
const SrcMgr::SLocEntry &FromSLoc = FromSM.getSLocEntry(FromID);
assert(FromSLoc.isFile() && "Cannot handle macro expansions yet");
// Include location of this file.
SourceLocation ToIncludeLoc = Import(FromSLoc.getFile().getIncludeLoc());
// Map the FileID for to the "to" source manager.
FileID ToID;
const SrcMgr::ContentCache *Cache = FromSLoc.getFile().getContentCache();
if (Cache->OrigEntry && Cache->OrigEntry->getDir()) {
// FIXME: We probably want to use getVirtualFile(), so we don't hit the
// disk again
// FIXME: We definitely want to re-use the existing MemoryBuffer, rather
// than mmap the files several times.
const FileEntry *Entry = ToFileManager.getFile(Cache->OrigEntry->getName());
if (!Entry)
return FileID();
ToID = ToSM.createFileID(Entry, ToIncludeLoc,
FromSLoc.getFile().getFileCharacteristic());
} else {
// FIXME: We want to re-use the existing MemoryBuffer!
const llvm::MemoryBuffer *
FromBuf = Cache->getBuffer(FromContext.getDiagnostics(), FromSM);
std::unique_ptr<llvm::MemoryBuffer> ToBuf
= llvm::MemoryBuffer::getMemBufferCopy(FromBuf->getBuffer(),
FromBuf->getBufferIdentifier());
ToID = ToSM.createFileID(std::move(ToBuf),
FromSLoc.getFile().getFileCharacteristic());
}
ImportedFileIDs[FromID] = ToID;
return ToID;
}
CXXCtorInitializer *ASTImporter::Import(CXXCtorInitializer *From) {
Expr *ToExpr = Import(From->getInit());
if (!ToExpr && From->getInit())
return nullptr;
if (From->isBaseInitializer()) {
TypeSourceInfo *ToTInfo = Import(From->getTypeSourceInfo());
if (!ToTInfo && From->getTypeSourceInfo())
return nullptr;
return new (ToContext) CXXCtorInitializer(
ToContext, ToTInfo, From->isBaseVirtual(), Import(From->getLParenLoc()),
ToExpr, Import(From->getRParenLoc()),
From->isPackExpansion() ? Import(From->getEllipsisLoc())
: SourceLocation());
} else if (From->isMemberInitializer()) {
FieldDecl *ToField =
llvm::cast_or_null<FieldDecl>(Import(From->getMember()));
if (!ToField && From->getMember())
return nullptr;
return new (ToContext) CXXCtorInitializer(
ToContext, ToField, Import(From->getMemberLocation()),
Import(From->getLParenLoc()), ToExpr, Import(From->getRParenLoc()));
} else if (From->isIndirectMemberInitializer()) {
IndirectFieldDecl *ToIField = llvm::cast_or_null<IndirectFieldDecl>(
Import(From->getIndirectMember()));
if (!ToIField && From->getIndirectMember())
return nullptr;
return new (ToContext) CXXCtorInitializer(
ToContext, ToIField, Import(From->getMemberLocation()),
Import(From->getLParenLoc()), ToExpr, Import(From->getRParenLoc()));
} else if (From->isDelegatingInitializer()) {
TypeSourceInfo *ToTInfo = Import(From->getTypeSourceInfo());
if (!ToTInfo && From->getTypeSourceInfo())
return nullptr;
return new (ToContext)
CXXCtorInitializer(ToContext, ToTInfo, Import(From->getLParenLoc()),
ToExpr, Import(From->getRParenLoc()));
} else {
return nullptr;
}
}
CXXBaseSpecifier *ASTImporter::Import(const CXXBaseSpecifier *BaseSpec) {
auto Pos = ImportedCXXBaseSpecifiers.find(BaseSpec);
if (Pos != ImportedCXXBaseSpecifiers.end())
return Pos->second;
CXXBaseSpecifier *Imported = new (ToContext) CXXBaseSpecifier(
Import(BaseSpec->getSourceRange()),
BaseSpec->isVirtual(), BaseSpec->isBaseOfClass(),
BaseSpec->getAccessSpecifierAsWritten(),
Import(BaseSpec->getTypeSourceInfo()),
Import(BaseSpec->getEllipsisLoc()));
ImportedCXXBaseSpecifiers[BaseSpec] = Imported;
return Imported;
}
void ASTImporter::ImportDefinition(Decl *From) {
Decl *To = Import(From);
if (!To)
return;
if (DeclContext *FromDC = cast<DeclContext>(From)) {
ASTNodeImporter Importer(*this);
if (RecordDecl *ToRecord = dyn_cast<RecordDecl>(To)) {
if (!ToRecord->getDefinition()) {
Importer.ImportDefinition(cast<RecordDecl>(FromDC), ToRecord,
ASTNodeImporter::IDK_Everything);
return;
}
}
if (EnumDecl *ToEnum = dyn_cast<EnumDecl>(To)) {
if (!ToEnum->getDefinition()) {
Importer.ImportDefinition(cast<EnumDecl>(FromDC), ToEnum,
ASTNodeImporter::IDK_Everything);
return;
}
}
if (ObjCInterfaceDecl *ToIFace = dyn_cast<ObjCInterfaceDecl>(To)) {
if (!ToIFace->getDefinition()) {
Importer.ImportDefinition(cast<ObjCInterfaceDecl>(FromDC), ToIFace,
ASTNodeImporter::IDK_Everything);
return;
}
}
if (ObjCProtocolDecl *ToProto = dyn_cast<ObjCProtocolDecl>(To)) {
if (!ToProto->getDefinition()) {
Importer.ImportDefinition(cast<ObjCProtocolDecl>(FromDC), ToProto,
ASTNodeImporter::IDK_Everything);
return;
}
}
Importer.ImportDeclContext(FromDC, true);
}
}
DeclarationName ASTImporter::Import(DeclarationName FromName) {
if (!FromName)
return DeclarationName();
switch (FromName.getNameKind()) {
case DeclarationName::Identifier:
return Import(FromName.getAsIdentifierInfo());
case DeclarationName::ObjCZeroArgSelector:
case DeclarationName::ObjCOneArgSelector:
case DeclarationName::ObjCMultiArgSelector:
return Import(FromName.getObjCSelector());
case DeclarationName::CXXConstructorName: {
QualType T = Import(FromName.getCXXNameType());
if (T.isNull())
return DeclarationName();
return ToContext.DeclarationNames.getCXXConstructorName(
ToContext.getCanonicalType(T));
}
case DeclarationName::CXXDestructorName: {
QualType T = Import(FromName.getCXXNameType());
if (T.isNull())
return DeclarationName();
return ToContext.DeclarationNames.getCXXDestructorName(
ToContext.getCanonicalType(T));
}
case DeclarationName::CXXDeductionGuideName: {
TemplateDecl *Template = cast_or_null<TemplateDecl>(
Import(FromName.getCXXDeductionGuideTemplate()));
if (!Template)
return DeclarationName();
return ToContext.DeclarationNames.getCXXDeductionGuideName(Template);
}
case DeclarationName::CXXConversionFunctionName: {
QualType T = Import(FromName.getCXXNameType());
if (T.isNull())
return DeclarationName();
return ToContext.DeclarationNames.getCXXConversionFunctionName(
ToContext.getCanonicalType(T));
}
case DeclarationName::CXXOperatorName:
return ToContext.DeclarationNames.getCXXOperatorName(
FromName.getCXXOverloadedOperator());
case DeclarationName::CXXLiteralOperatorName:
return ToContext.DeclarationNames.getCXXLiteralOperatorName(
Import(FromName.getCXXLiteralIdentifier()));
case DeclarationName::CXXUsingDirective:
// FIXME: STATICS!
return DeclarationName::getUsingDirectiveName();
}
llvm_unreachable("Invalid DeclarationName Kind!");
}
IdentifierInfo *ASTImporter::Import(const IdentifierInfo *FromId) {
if (!FromId)
return nullptr;
IdentifierInfo *ToId = &ToContext.Idents.get(FromId->getName());
if (!ToId->getBuiltinID() && FromId->getBuiltinID())
ToId->setBuiltinID(FromId->getBuiltinID());
return ToId;
}
Selector ASTImporter::Import(Selector FromSel) {
if (FromSel.isNull())
return Selector();
SmallVector<IdentifierInfo *, 4> Idents;
Idents.push_back(Import(FromSel.getIdentifierInfoForSlot(0)));
for (unsigned I = 1, N = FromSel.getNumArgs(); I < N; ++I)
Idents.push_back(Import(FromSel.getIdentifierInfoForSlot(I)));
return ToContext.Selectors.getSelector(FromSel.getNumArgs(), Idents.data());
}
DeclarationName ASTImporter::HandleNameConflict(DeclarationName Name,
DeclContext *DC,
unsigned IDNS,
NamedDecl **Decls,
unsigned NumDecls) {
return Name;
}
DiagnosticBuilder ASTImporter::ToDiag(SourceLocation Loc, unsigned DiagID) {
if (LastDiagFromFrom)
ToContext.getDiagnostics().notePriorDiagnosticFrom(
FromContext.getDiagnostics());
LastDiagFromFrom = false;
return ToContext.getDiagnostics().Report(Loc, DiagID);
}
DiagnosticBuilder ASTImporter::FromDiag(SourceLocation Loc, unsigned DiagID) {
if (!LastDiagFromFrom)
FromContext.getDiagnostics().notePriorDiagnosticFrom(
ToContext.getDiagnostics());
LastDiagFromFrom = true;
return FromContext.getDiagnostics().Report(Loc, DiagID);
}
void ASTImporter::CompleteDecl (Decl *D) {
if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) {
if (!ID->getDefinition())
ID->startDefinition();
}
else if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D)) {
if (!PD->getDefinition())
PD->startDefinition();
}
else if (TagDecl *TD = dyn_cast<TagDecl>(D)) {
if (!TD->getDefinition() && !TD->isBeingDefined()) {
TD->startDefinition();
TD->setCompleteDefinition(true);
}
}
else {
assert (0 && "CompleteDecl called on a Decl that can't be completed");
}
}
Decl *ASTImporter::Imported(Decl *From, Decl *To) {
if (From->hasAttrs()) {
for (Attr *FromAttr : From->getAttrs())
To->addAttr(FromAttr->clone(To->getASTContext()));
}
if (From->isUsed()) {
To->setIsUsed();
}
if (From->isImplicit()) {
To->setImplicit();
}
ImportedDecls[From] = To;
return To;
}
bool ASTImporter::IsStructurallyEquivalent(QualType From, QualType To,
bool Complain) {
llvm::DenseMap<const Type *, const Type *>::iterator Pos
= ImportedTypes.find(From.getTypePtr());
if (Pos != ImportedTypes.end() && ToContext.hasSameType(Import(From), To))
return true;
StructuralEquivalenceContext Ctx(FromContext, ToContext, NonEquivalentDecls,
false, Complain);
return Ctx.IsStructurallyEquivalent(From, To);
}
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