1 //===--- ASTImporter.cpp - Importing ASTs from other Contexts ---*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the ASTImporter class which imports AST nodes from one
11 // context into another context.
13 //===----------------------------------------------------------------------===//
14 #include "clang/AST/ASTImporter.h"
15 #include "clang/AST/ASTContext.h"
16 #include "clang/AST/ASTDiagnostic.h"
17 #include "clang/AST/DeclCXX.h"
18 #include "clang/AST/DeclObjC.h"
19 #include "clang/AST/DeclVisitor.h"
20 #include "clang/AST/StmtVisitor.h"
21 #include "clang/AST/TypeVisitor.h"
22 #include "clang/Basic/FileManager.h"
23 #include "clang/Basic/SourceManager.h"
24 #include "llvm/Support/MemoryBuffer.h"
28 class ASTNodeImporter : public TypeVisitor<ASTNodeImporter, QualType>,
29 public DeclVisitor<ASTNodeImporter, Decl *>,
30 public StmtVisitor<ASTNodeImporter, Stmt *> {
31 ASTImporter &Importer;
34 explicit ASTNodeImporter(ASTImporter &Importer) : Importer(Importer) { }
36 using TypeVisitor<ASTNodeImporter, QualType>::Visit;
37 using DeclVisitor<ASTNodeImporter, Decl *>::Visit;
38 using StmtVisitor<ASTNodeImporter, Stmt *>::Visit;
41 QualType VisitType(const Type *T);
42 QualType VisitBuiltinType(const BuiltinType *T);
43 QualType VisitComplexType(const ComplexType *T);
44 QualType VisitPointerType(const PointerType *T);
45 QualType VisitBlockPointerType(const BlockPointerType *T);
46 QualType VisitLValueReferenceType(const LValueReferenceType *T);
47 QualType VisitRValueReferenceType(const RValueReferenceType *T);
48 QualType VisitMemberPointerType(const MemberPointerType *T);
49 QualType VisitConstantArrayType(const ConstantArrayType *T);
50 QualType VisitIncompleteArrayType(const IncompleteArrayType *T);
51 QualType VisitVariableArrayType(const VariableArrayType *T);
52 // FIXME: DependentSizedArrayType
53 // FIXME: DependentSizedExtVectorType
54 QualType VisitVectorType(const VectorType *T);
55 QualType VisitExtVectorType(const ExtVectorType *T);
56 QualType VisitFunctionNoProtoType(const FunctionNoProtoType *T);
57 QualType VisitFunctionProtoType(const FunctionProtoType *T);
58 // FIXME: UnresolvedUsingType
59 QualType VisitParenType(const ParenType *T);
60 QualType VisitTypedefType(const TypedefType *T);
61 QualType VisitTypeOfExprType(const TypeOfExprType *T);
62 // FIXME: DependentTypeOfExprType
63 QualType VisitTypeOfType(const TypeOfType *T);
64 QualType VisitDecltypeType(const DecltypeType *T);
65 QualType VisitUnaryTransformType(const UnaryTransformType *T);
66 QualType VisitAutoType(const AutoType *T);
67 // FIXME: DependentDecltypeType
68 QualType VisitRecordType(const RecordType *T);
69 QualType VisitEnumType(const EnumType *T);
70 // FIXME: TemplateTypeParmType
71 // FIXME: SubstTemplateTypeParmType
72 QualType VisitTemplateSpecializationType(const TemplateSpecializationType *T);
73 QualType VisitElaboratedType(const ElaboratedType *T);
74 // FIXME: DependentNameType
75 // FIXME: DependentTemplateSpecializationType
76 QualType VisitObjCInterfaceType(const ObjCInterfaceType *T);
77 QualType VisitObjCObjectType(const ObjCObjectType *T);
78 QualType VisitObjCObjectPointerType(const ObjCObjectPointerType *T);
80 // Importing declarations
81 bool ImportDeclParts(NamedDecl *D, DeclContext *&DC,
82 DeclContext *&LexicalDC, DeclarationName &Name,
84 void ImportDefinitionIfNeeded(Decl *FromD, Decl *ToD = 0);
85 void ImportDeclarationNameLoc(const DeclarationNameInfo &From,
86 DeclarationNameInfo& To);
87 void ImportDeclContext(DeclContext *FromDC, bool ForceImport = false);
89 /// \brief What we should import from the definition.
90 enum ImportDefinitionKind {
91 /// \brief Import the default subset of the definition, which might be
92 /// nothing (if minimal import is set) or might be everything (if minimal
93 /// import is not set).
95 /// \brief Import everything.
97 /// \brief Import only the bare bones needed to establish a valid
102 bool shouldForceImportDeclContext(ImportDefinitionKind IDK) {
103 return IDK == IDK_Everything ||
104 (IDK == IDK_Default && !Importer.isMinimalImport());
107 bool ImportDefinition(RecordDecl *From, RecordDecl *To,
108 ImportDefinitionKind Kind = IDK_Default);
109 bool ImportDefinition(EnumDecl *From, EnumDecl *To,
110 ImportDefinitionKind Kind = IDK_Default);
111 bool ImportDefinition(ObjCInterfaceDecl *From, ObjCInterfaceDecl *To,
112 ImportDefinitionKind Kind = IDK_Default);
113 bool ImportDefinition(ObjCProtocolDecl *From, ObjCProtocolDecl *To,
114 ImportDefinitionKind Kind = IDK_Default);
115 TemplateParameterList *ImportTemplateParameterList(
116 TemplateParameterList *Params);
117 TemplateArgument ImportTemplateArgument(const TemplateArgument &From);
118 bool ImportTemplateArguments(const TemplateArgument *FromArgs,
119 unsigned NumFromArgs,
120 SmallVectorImpl<TemplateArgument> &ToArgs);
121 bool IsStructuralMatch(RecordDecl *FromRecord, RecordDecl *ToRecord,
122 bool Complain = true);
123 bool IsStructuralMatch(EnumDecl *FromEnum, EnumDecl *ToRecord);
124 bool IsStructuralMatch(EnumConstantDecl *FromEC, EnumConstantDecl *ToEC);
125 bool IsStructuralMatch(ClassTemplateDecl *From, ClassTemplateDecl *To);
126 Decl *VisitDecl(Decl *D);
127 Decl *VisitTranslationUnitDecl(TranslationUnitDecl *D);
128 Decl *VisitNamespaceDecl(NamespaceDecl *D);
129 Decl *VisitTypedefNameDecl(TypedefNameDecl *D, bool IsAlias);
130 Decl *VisitTypedefDecl(TypedefDecl *D);
131 Decl *VisitTypeAliasDecl(TypeAliasDecl *D);
132 Decl *VisitEnumDecl(EnumDecl *D);
133 Decl *VisitRecordDecl(RecordDecl *D);
134 Decl *VisitEnumConstantDecl(EnumConstantDecl *D);
135 Decl *VisitFunctionDecl(FunctionDecl *D);
136 Decl *VisitCXXMethodDecl(CXXMethodDecl *D);
137 Decl *VisitCXXConstructorDecl(CXXConstructorDecl *D);
138 Decl *VisitCXXDestructorDecl(CXXDestructorDecl *D);
139 Decl *VisitCXXConversionDecl(CXXConversionDecl *D);
140 Decl *VisitFieldDecl(FieldDecl *D);
141 Decl *VisitIndirectFieldDecl(IndirectFieldDecl *D);
142 Decl *VisitObjCIvarDecl(ObjCIvarDecl *D);
143 Decl *VisitVarDecl(VarDecl *D);
144 Decl *VisitImplicitParamDecl(ImplicitParamDecl *D);
145 Decl *VisitParmVarDecl(ParmVarDecl *D);
146 Decl *VisitObjCMethodDecl(ObjCMethodDecl *D);
147 Decl *VisitObjCCategoryDecl(ObjCCategoryDecl *D);
148 Decl *VisitObjCProtocolDecl(ObjCProtocolDecl *D);
149 Decl *VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
150 Decl *VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
151 Decl *VisitObjCImplementationDecl(ObjCImplementationDecl *D);
152 Decl *VisitObjCPropertyDecl(ObjCPropertyDecl *D);
153 Decl *VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
154 Decl *VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
155 Decl *VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
156 Decl *VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
157 Decl *VisitClassTemplateDecl(ClassTemplateDecl *D);
158 Decl *VisitClassTemplateSpecializationDecl(
159 ClassTemplateSpecializationDecl *D);
161 // Importing statements
162 Stmt *VisitStmt(Stmt *S);
164 // Importing expressions
165 Expr *VisitExpr(Expr *E);
166 Expr *VisitDeclRefExpr(DeclRefExpr *E);
167 Expr *VisitIntegerLiteral(IntegerLiteral *E);
168 Expr *VisitCharacterLiteral(CharacterLiteral *E);
169 Expr *VisitParenExpr(ParenExpr *E);
170 Expr *VisitUnaryOperator(UnaryOperator *E);
171 Expr *VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *E);
172 Expr *VisitBinaryOperator(BinaryOperator *E);
173 Expr *VisitCompoundAssignOperator(CompoundAssignOperator *E);
174 Expr *VisitImplicitCastExpr(ImplicitCastExpr *E);
175 Expr *VisitCStyleCastExpr(CStyleCastExpr *E);
178 using namespace clang;
180 //----------------------------------------------------------------------------
181 // Structural Equivalence
182 //----------------------------------------------------------------------------
185 struct StructuralEquivalenceContext {
186 /// \brief AST contexts for which we are checking structural equivalence.
189 /// \brief The set of "tentative" equivalences between two canonical
190 /// declarations, mapping from a declaration in the first context to the
191 /// declaration in the second context that we believe to be equivalent.
192 llvm::DenseMap<Decl *, Decl *> TentativeEquivalences;
194 /// \brief Queue of declarations in the first context whose equivalence
195 /// with a declaration in the second context still needs to be verified.
196 std::deque<Decl *> DeclsToCheck;
198 /// \brief Declaration (from, to) pairs that are known not to be equivalent
199 /// (which we have already complained about).
200 llvm::DenseSet<std::pair<Decl *, Decl *> > &NonEquivalentDecls;
202 /// \brief Whether we're being strict about the spelling of types when
203 /// unifying two types.
204 bool StrictTypeSpelling;
206 /// \brief Whether to complain about failures.
209 /// \brief \c true if the last diagnostic came from C2.
212 StructuralEquivalenceContext(ASTContext &C1, ASTContext &C2,
213 llvm::DenseSet<std::pair<Decl *, Decl *> > &NonEquivalentDecls,
214 bool StrictTypeSpelling = false,
215 bool Complain = true)
216 : C1(C1), C2(C2), NonEquivalentDecls(NonEquivalentDecls),
217 StrictTypeSpelling(StrictTypeSpelling), Complain(Complain),
218 LastDiagFromC2(false) {}
220 /// \brief Determine whether the two declarations are structurally
222 bool IsStructurallyEquivalent(Decl *D1, Decl *D2);
224 /// \brief Determine whether the two types are structurally equivalent.
225 bool IsStructurallyEquivalent(QualType T1, QualType T2);
228 /// \brief Finish checking all of the structural equivalences.
230 /// \returns true if an error occurred, false otherwise.
234 DiagnosticBuilder Diag1(SourceLocation Loc, unsigned DiagID) {
235 assert(Complain && "Not allowed to complain");
237 C1.getDiagnostics().notePriorDiagnosticFrom(C2.getDiagnostics());
238 LastDiagFromC2 = false;
239 return C1.getDiagnostics().Report(Loc, DiagID);
242 DiagnosticBuilder Diag2(SourceLocation Loc, unsigned DiagID) {
243 assert(Complain && "Not allowed to complain");
245 C2.getDiagnostics().notePriorDiagnosticFrom(C1.getDiagnostics());
246 LastDiagFromC2 = true;
247 return C2.getDiagnostics().Report(Loc, DiagID);
252 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
253 QualType T1, QualType T2);
254 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
257 /// \brief Determine structural equivalence of two expressions.
258 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
259 Expr *E1, Expr *E2) {
263 // FIXME: Actually perform a structural comparison!
267 /// \brief Determine whether two identifiers are equivalent.
268 static bool IsStructurallyEquivalent(const IdentifierInfo *Name1,
269 const IdentifierInfo *Name2) {
270 if (!Name1 || !Name2)
271 return Name1 == Name2;
273 return Name1->getName() == Name2->getName();
276 /// \brief Determine whether two nested-name-specifiers are equivalent.
277 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
278 NestedNameSpecifier *NNS1,
279 NestedNameSpecifier *NNS2) {
284 /// \brief Determine whether two template arguments are equivalent.
285 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
286 const TemplateArgument &Arg1,
287 const TemplateArgument &Arg2) {
288 if (Arg1.getKind() != Arg2.getKind())
291 switch (Arg1.getKind()) {
292 case TemplateArgument::Null:
295 case TemplateArgument::Type:
296 return Context.IsStructurallyEquivalent(Arg1.getAsType(), Arg2.getAsType());
298 case TemplateArgument::Integral:
299 if (!Context.IsStructurallyEquivalent(Arg1.getIntegralType(),
300 Arg2.getIntegralType()))
303 return llvm::APSInt::isSameValue(Arg1.getAsIntegral(), Arg2.getAsIntegral());
305 case TemplateArgument::Declaration:
306 return Context.IsStructurallyEquivalent(Arg1.getAsDecl(), Arg2.getAsDecl());
308 case TemplateArgument::NullPtr:
309 return true; // FIXME: Is this correct?
311 case TemplateArgument::Template:
312 return IsStructurallyEquivalent(Context,
313 Arg1.getAsTemplate(),
314 Arg2.getAsTemplate());
316 case TemplateArgument::TemplateExpansion:
317 return IsStructurallyEquivalent(Context,
318 Arg1.getAsTemplateOrTemplatePattern(),
319 Arg2.getAsTemplateOrTemplatePattern());
321 case TemplateArgument::Expression:
322 return IsStructurallyEquivalent(Context,
323 Arg1.getAsExpr(), Arg2.getAsExpr());
325 case TemplateArgument::Pack:
326 if (Arg1.pack_size() != Arg2.pack_size())
329 for (unsigned I = 0, N = Arg1.pack_size(); I != N; ++I)
330 if (!IsStructurallyEquivalent(Context,
331 Arg1.pack_begin()[I],
332 Arg2.pack_begin()[I]))
338 llvm_unreachable("Invalid template argument kind");
341 /// \brief Determine structural equivalence for the common part of array
343 static bool IsArrayStructurallyEquivalent(StructuralEquivalenceContext &Context,
344 const ArrayType *Array1,
345 const ArrayType *Array2) {
346 if (!IsStructurallyEquivalent(Context,
347 Array1->getElementType(),
348 Array2->getElementType()))
350 if (Array1->getSizeModifier() != Array2->getSizeModifier())
352 if (Array1->getIndexTypeQualifiers() != Array2->getIndexTypeQualifiers())
358 /// \brief Determine structural equivalence of two types.
359 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
360 QualType T1, QualType T2) {
361 if (T1.isNull() || T2.isNull())
362 return T1.isNull() && T2.isNull();
364 if (!Context.StrictTypeSpelling) {
365 // We aren't being strict about token-to-token equivalence of types,
366 // so map down to the canonical type.
367 T1 = Context.C1.getCanonicalType(T1);
368 T2 = Context.C2.getCanonicalType(T2);
371 if (T1.getQualifiers() != T2.getQualifiers())
374 Type::TypeClass TC = T1->getTypeClass();
376 if (T1->getTypeClass() != T2->getTypeClass()) {
377 // Compare function types with prototypes vs. without prototypes as if
378 // both did not have prototypes.
379 if (T1->getTypeClass() == Type::FunctionProto &&
380 T2->getTypeClass() == Type::FunctionNoProto)
381 TC = Type::FunctionNoProto;
382 else if (T1->getTypeClass() == Type::FunctionNoProto &&
383 T2->getTypeClass() == Type::FunctionProto)
384 TC = Type::FunctionNoProto;
391 // FIXME: Deal with Char_S/Char_U.
392 if (cast<BuiltinType>(T1)->getKind() != cast<BuiltinType>(T2)->getKind())
397 if (!IsStructurallyEquivalent(Context,
398 cast<ComplexType>(T1)->getElementType(),
399 cast<ComplexType>(T2)->getElementType()))
404 if (!IsStructurallyEquivalent(Context,
405 cast<PointerType>(T1)->getPointeeType(),
406 cast<PointerType>(T2)->getPointeeType()))
410 case Type::BlockPointer:
411 if (!IsStructurallyEquivalent(Context,
412 cast<BlockPointerType>(T1)->getPointeeType(),
413 cast<BlockPointerType>(T2)->getPointeeType()))
417 case Type::LValueReference:
418 case Type::RValueReference: {
419 const ReferenceType *Ref1 = cast<ReferenceType>(T1);
420 const ReferenceType *Ref2 = cast<ReferenceType>(T2);
421 if (Ref1->isSpelledAsLValue() != Ref2->isSpelledAsLValue())
423 if (Ref1->isInnerRef() != Ref2->isInnerRef())
425 if (!IsStructurallyEquivalent(Context,
426 Ref1->getPointeeTypeAsWritten(),
427 Ref2->getPointeeTypeAsWritten()))
432 case Type::MemberPointer: {
433 const MemberPointerType *MemPtr1 = cast<MemberPointerType>(T1);
434 const MemberPointerType *MemPtr2 = cast<MemberPointerType>(T2);
435 if (!IsStructurallyEquivalent(Context,
436 MemPtr1->getPointeeType(),
437 MemPtr2->getPointeeType()))
439 if (!IsStructurallyEquivalent(Context,
440 QualType(MemPtr1->getClass(), 0),
441 QualType(MemPtr2->getClass(), 0)))
446 case Type::ConstantArray: {
447 const ConstantArrayType *Array1 = cast<ConstantArrayType>(T1);
448 const ConstantArrayType *Array2 = cast<ConstantArrayType>(T2);
449 if (!llvm::APInt::isSameValue(Array1->getSize(), Array2->getSize()))
452 if (!IsArrayStructurallyEquivalent(Context, Array1, Array2))
457 case Type::IncompleteArray:
458 if (!IsArrayStructurallyEquivalent(Context,
460 cast<ArrayType>(T2)))
464 case Type::VariableArray: {
465 const VariableArrayType *Array1 = cast<VariableArrayType>(T1);
466 const VariableArrayType *Array2 = cast<VariableArrayType>(T2);
467 if (!IsStructurallyEquivalent(Context,
468 Array1->getSizeExpr(), Array2->getSizeExpr()))
471 if (!IsArrayStructurallyEquivalent(Context, Array1, Array2))
477 case Type::DependentSizedArray: {
478 const DependentSizedArrayType *Array1 = cast<DependentSizedArrayType>(T1);
479 const DependentSizedArrayType *Array2 = cast<DependentSizedArrayType>(T2);
480 if (!IsStructurallyEquivalent(Context,
481 Array1->getSizeExpr(), Array2->getSizeExpr()))
484 if (!IsArrayStructurallyEquivalent(Context, Array1, Array2))
490 case Type::DependentSizedExtVector: {
491 const DependentSizedExtVectorType *Vec1
492 = cast<DependentSizedExtVectorType>(T1);
493 const DependentSizedExtVectorType *Vec2
494 = cast<DependentSizedExtVectorType>(T2);
495 if (!IsStructurallyEquivalent(Context,
496 Vec1->getSizeExpr(), Vec2->getSizeExpr()))
498 if (!IsStructurallyEquivalent(Context,
499 Vec1->getElementType(),
500 Vec2->getElementType()))
506 case Type::ExtVector: {
507 const VectorType *Vec1 = cast<VectorType>(T1);
508 const VectorType *Vec2 = cast<VectorType>(T2);
509 if (!IsStructurallyEquivalent(Context,
510 Vec1->getElementType(),
511 Vec2->getElementType()))
513 if (Vec1->getNumElements() != Vec2->getNumElements())
515 if (Vec1->getVectorKind() != Vec2->getVectorKind())
520 case Type::FunctionProto: {
521 const FunctionProtoType *Proto1 = cast<FunctionProtoType>(T1);
522 const FunctionProtoType *Proto2 = cast<FunctionProtoType>(T2);
523 if (Proto1->getNumArgs() != Proto2->getNumArgs())
525 for (unsigned I = 0, N = Proto1->getNumArgs(); I != N; ++I) {
526 if (!IsStructurallyEquivalent(Context,
527 Proto1->getArgType(I),
528 Proto2->getArgType(I)))
531 if (Proto1->isVariadic() != Proto2->isVariadic())
533 if (Proto1->getExceptionSpecType() != Proto2->getExceptionSpecType())
535 if (Proto1->getExceptionSpecType() == EST_Dynamic) {
536 if (Proto1->getNumExceptions() != Proto2->getNumExceptions())
538 for (unsigned I = 0, N = Proto1->getNumExceptions(); I != N; ++I) {
539 if (!IsStructurallyEquivalent(Context,
540 Proto1->getExceptionType(I),
541 Proto2->getExceptionType(I)))
544 } else if (Proto1->getExceptionSpecType() == EST_ComputedNoexcept) {
545 if (!IsStructurallyEquivalent(Context,
546 Proto1->getNoexceptExpr(),
547 Proto2->getNoexceptExpr()))
550 if (Proto1->getTypeQuals() != Proto2->getTypeQuals())
553 // Fall through to check the bits common with FunctionNoProtoType.
556 case Type::FunctionNoProto: {
557 const FunctionType *Function1 = cast<FunctionType>(T1);
558 const FunctionType *Function2 = cast<FunctionType>(T2);
559 if (!IsStructurallyEquivalent(Context,
560 Function1->getResultType(),
561 Function2->getResultType()))
563 if (Function1->getExtInfo() != Function2->getExtInfo())
568 case Type::UnresolvedUsing:
569 if (!IsStructurallyEquivalent(Context,
570 cast<UnresolvedUsingType>(T1)->getDecl(),
571 cast<UnresolvedUsingType>(T2)->getDecl()))
576 case Type::Attributed:
577 if (!IsStructurallyEquivalent(Context,
578 cast<AttributedType>(T1)->getModifiedType(),
579 cast<AttributedType>(T2)->getModifiedType()))
581 if (!IsStructurallyEquivalent(Context,
582 cast<AttributedType>(T1)->getEquivalentType(),
583 cast<AttributedType>(T2)->getEquivalentType()))
588 if (!IsStructurallyEquivalent(Context,
589 cast<ParenType>(T1)->getInnerType(),
590 cast<ParenType>(T2)->getInnerType()))
595 if (!IsStructurallyEquivalent(Context,
596 cast<TypedefType>(T1)->getDecl(),
597 cast<TypedefType>(T2)->getDecl()))
601 case Type::TypeOfExpr:
602 if (!IsStructurallyEquivalent(Context,
603 cast<TypeOfExprType>(T1)->getUnderlyingExpr(),
604 cast<TypeOfExprType>(T2)->getUnderlyingExpr()))
609 if (!IsStructurallyEquivalent(Context,
610 cast<TypeOfType>(T1)->getUnderlyingType(),
611 cast<TypeOfType>(T2)->getUnderlyingType()))
615 case Type::UnaryTransform:
616 if (!IsStructurallyEquivalent(Context,
617 cast<UnaryTransformType>(T1)->getUnderlyingType(),
618 cast<UnaryTransformType>(T1)->getUnderlyingType()))
623 if (!IsStructurallyEquivalent(Context,
624 cast<DecltypeType>(T1)->getUnderlyingExpr(),
625 cast<DecltypeType>(T2)->getUnderlyingExpr()))
630 if (!IsStructurallyEquivalent(Context,
631 cast<AutoType>(T1)->getDeducedType(),
632 cast<AutoType>(T2)->getDeducedType()))
638 if (!IsStructurallyEquivalent(Context,
639 cast<TagType>(T1)->getDecl(),
640 cast<TagType>(T2)->getDecl()))
644 case Type::TemplateTypeParm: {
645 const TemplateTypeParmType *Parm1 = cast<TemplateTypeParmType>(T1);
646 const TemplateTypeParmType *Parm2 = cast<TemplateTypeParmType>(T2);
647 if (Parm1->getDepth() != Parm2->getDepth())
649 if (Parm1->getIndex() != Parm2->getIndex())
651 if (Parm1->isParameterPack() != Parm2->isParameterPack())
654 // Names of template type parameters are never significant.
658 case Type::SubstTemplateTypeParm: {
659 const SubstTemplateTypeParmType *Subst1
660 = cast<SubstTemplateTypeParmType>(T1);
661 const SubstTemplateTypeParmType *Subst2
662 = cast<SubstTemplateTypeParmType>(T2);
663 if (!IsStructurallyEquivalent(Context,
664 QualType(Subst1->getReplacedParameter(), 0),
665 QualType(Subst2->getReplacedParameter(), 0)))
667 if (!IsStructurallyEquivalent(Context,
668 Subst1->getReplacementType(),
669 Subst2->getReplacementType()))
674 case Type::SubstTemplateTypeParmPack: {
675 const SubstTemplateTypeParmPackType *Subst1
676 = cast<SubstTemplateTypeParmPackType>(T1);
677 const SubstTemplateTypeParmPackType *Subst2
678 = cast<SubstTemplateTypeParmPackType>(T2);
679 if (!IsStructurallyEquivalent(Context,
680 QualType(Subst1->getReplacedParameter(), 0),
681 QualType(Subst2->getReplacedParameter(), 0)))
683 if (!IsStructurallyEquivalent(Context,
684 Subst1->getArgumentPack(),
685 Subst2->getArgumentPack()))
689 case Type::TemplateSpecialization: {
690 const TemplateSpecializationType *Spec1
691 = cast<TemplateSpecializationType>(T1);
692 const TemplateSpecializationType *Spec2
693 = cast<TemplateSpecializationType>(T2);
694 if (!IsStructurallyEquivalent(Context,
695 Spec1->getTemplateName(),
696 Spec2->getTemplateName()))
698 if (Spec1->getNumArgs() != Spec2->getNumArgs())
700 for (unsigned I = 0, N = Spec1->getNumArgs(); I != N; ++I) {
701 if (!IsStructurallyEquivalent(Context,
702 Spec1->getArg(I), Spec2->getArg(I)))
708 case Type::Elaborated: {
709 const ElaboratedType *Elab1 = cast<ElaboratedType>(T1);
710 const ElaboratedType *Elab2 = cast<ElaboratedType>(T2);
711 // CHECKME: what if a keyword is ETK_None or ETK_typename ?
712 if (Elab1->getKeyword() != Elab2->getKeyword())
714 if (!IsStructurallyEquivalent(Context,
715 Elab1->getQualifier(),
716 Elab2->getQualifier()))
718 if (!IsStructurallyEquivalent(Context,
719 Elab1->getNamedType(),
720 Elab2->getNamedType()))
725 case Type::InjectedClassName: {
726 const InjectedClassNameType *Inj1 = cast<InjectedClassNameType>(T1);
727 const InjectedClassNameType *Inj2 = cast<InjectedClassNameType>(T2);
728 if (!IsStructurallyEquivalent(Context,
729 Inj1->getInjectedSpecializationType(),
730 Inj2->getInjectedSpecializationType()))
735 case Type::DependentName: {
736 const DependentNameType *Typename1 = cast<DependentNameType>(T1);
737 const DependentNameType *Typename2 = cast<DependentNameType>(T2);
738 if (!IsStructurallyEquivalent(Context,
739 Typename1->getQualifier(),
740 Typename2->getQualifier()))
742 if (!IsStructurallyEquivalent(Typename1->getIdentifier(),
743 Typename2->getIdentifier()))
749 case Type::DependentTemplateSpecialization: {
750 const DependentTemplateSpecializationType *Spec1 =
751 cast<DependentTemplateSpecializationType>(T1);
752 const DependentTemplateSpecializationType *Spec2 =
753 cast<DependentTemplateSpecializationType>(T2);
754 if (!IsStructurallyEquivalent(Context,
755 Spec1->getQualifier(),
756 Spec2->getQualifier()))
758 if (!IsStructurallyEquivalent(Spec1->getIdentifier(),
759 Spec2->getIdentifier()))
761 if (Spec1->getNumArgs() != Spec2->getNumArgs())
763 for (unsigned I = 0, N = Spec1->getNumArgs(); I != N; ++I) {
764 if (!IsStructurallyEquivalent(Context,
765 Spec1->getArg(I), Spec2->getArg(I)))
771 case Type::PackExpansion:
772 if (!IsStructurallyEquivalent(Context,
773 cast<PackExpansionType>(T1)->getPattern(),
774 cast<PackExpansionType>(T2)->getPattern()))
778 case Type::ObjCInterface: {
779 const ObjCInterfaceType *Iface1 = cast<ObjCInterfaceType>(T1);
780 const ObjCInterfaceType *Iface2 = cast<ObjCInterfaceType>(T2);
781 if (!IsStructurallyEquivalent(Context,
782 Iface1->getDecl(), Iface2->getDecl()))
787 case Type::ObjCObject: {
788 const ObjCObjectType *Obj1 = cast<ObjCObjectType>(T1);
789 const ObjCObjectType *Obj2 = cast<ObjCObjectType>(T2);
790 if (!IsStructurallyEquivalent(Context,
792 Obj2->getBaseType()))
794 if (Obj1->getNumProtocols() != Obj2->getNumProtocols())
796 for (unsigned I = 0, N = Obj1->getNumProtocols(); I != N; ++I) {
797 if (!IsStructurallyEquivalent(Context,
798 Obj1->getProtocol(I),
799 Obj2->getProtocol(I)))
805 case Type::ObjCObjectPointer: {
806 const ObjCObjectPointerType *Ptr1 = cast<ObjCObjectPointerType>(T1);
807 const ObjCObjectPointerType *Ptr2 = cast<ObjCObjectPointerType>(T2);
808 if (!IsStructurallyEquivalent(Context,
809 Ptr1->getPointeeType(),
810 Ptr2->getPointeeType()))
816 if (!IsStructurallyEquivalent(Context,
817 cast<AtomicType>(T1)->getValueType(),
818 cast<AtomicType>(T2)->getValueType()))
828 /// \brief Determine structural equivalence of two fields.
829 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
830 FieldDecl *Field1, FieldDecl *Field2) {
831 RecordDecl *Owner2 = cast<RecordDecl>(Field2->getDeclContext());
833 // For anonymous structs/unions, match up the anonymous struct/union type
834 // declarations directly, so that we don't go off searching for anonymous
836 if (Field1->isAnonymousStructOrUnion() &&
837 Field2->isAnonymousStructOrUnion()) {
838 RecordDecl *D1 = Field1->getType()->castAs<RecordType>()->getDecl();
839 RecordDecl *D2 = Field2->getType()->castAs<RecordType>()->getDecl();
840 return IsStructurallyEquivalent(Context, D1, D2);
843 if (!IsStructurallyEquivalent(Context,
844 Field1->getType(), Field2->getType())) {
845 if (Context.Complain) {
846 Context.Diag2(Owner2->getLocation(), diag::warn_odr_tag_type_inconsistent)
847 << Context.C2.getTypeDeclType(Owner2);
848 Context.Diag2(Field2->getLocation(), diag::note_odr_field)
849 << Field2->getDeclName() << Field2->getType();
850 Context.Diag1(Field1->getLocation(), diag::note_odr_field)
851 << Field1->getDeclName() << Field1->getType();
856 if (Field1->isBitField() != Field2->isBitField()) {
857 if (Context.Complain) {
858 Context.Diag2(Owner2->getLocation(), diag::warn_odr_tag_type_inconsistent)
859 << Context.C2.getTypeDeclType(Owner2);
860 if (Field1->isBitField()) {
861 Context.Diag1(Field1->getLocation(), diag::note_odr_bit_field)
862 << Field1->getDeclName() << Field1->getType()
863 << Field1->getBitWidthValue(Context.C1);
864 Context.Diag2(Field2->getLocation(), diag::note_odr_not_bit_field)
865 << Field2->getDeclName();
867 Context.Diag2(Field2->getLocation(), diag::note_odr_bit_field)
868 << Field2->getDeclName() << Field2->getType()
869 << Field2->getBitWidthValue(Context.C2);
870 Context.Diag1(Field1->getLocation(), diag::note_odr_not_bit_field)
871 << Field1->getDeclName();
877 if (Field1->isBitField()) {
878 // Make sure that the bit-fields are the same length.
879 unsigned Bits1 = Field1->getBitWidthValue(Context.C1);
880 unsigned Bits2 = Field2->getBitWidthValue(Context.C2);
882 if (Bits1 != Bits2) {
883 if (Context.Complain) {
884 Context.Diag2(Owner2->getLocation(), diag::warn_odr_tag_type_inconsistent)
885 << Context.C2.getTypeDeclType(Owner2);
886 Context.Diag2(Field2->getLocation(), diag::note_odr_bit_field)
887 << Field2->getDeclName() << Field2->getType() << Bits2;
888 Context.Diag1(Field1->getLocation(), diag::note_odr_bit_field)
889 << Field1->getDeclName() << Field1->getType() << Bits1;
898 /// \brief Find the index of the given anonymous struct/union within its
901 /// \returns Returns the index of this anonymous struct/union in its context,
902 /// including the next assigned index (if none of them match). Returns an
903 /// empty option if the context is not a record, i.e.. if the anonymous
904 /// struct/union is at namespace or block scope.
905 static Optional<unsigned> findAnonymousStructOrUnionIndex(RecordDecl *Anon) {
906 ASTContext &Context = Anon->getASTContext();
907 QualType AnonTy = Context.getRecordType(Anon);
909 RecordDecl *Owner = dyn_cast<RecordDecl>(Anon->getDeclContext());
914 for (DeclContext::decl_iterator D = Owner->noload_decls_begin(),
915 DEnd = Owner->noload_decls_end();
917 FieldDecl *F = dyn_cast<FieldDecl>(*D);
918 if (!F || !F->isAnonymousStructOrUnion())
921 if (Context.hasSameType(F->getType(), AnonTy))
930 /// \brief Determine structural equivalence of two records.
931 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
932 RecordDecl *D1, RecordDecl *D2) {
933 if (D1->isUnion() != D2->isUnion()) {
934 if (Context.Complain) {
935 Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
936 << Context.C2.getTypeDeclType(D2);
937 Context.Diag1(D1->getLocation(), diag::note_odr_tag_kind_here)
938 << D1->getDeclName() << (unsigned)D1->getTagKind();
943 if (D1->isAnonymousStructOrUnion() && D2->isAnonymousStructOrUnion()) {
944 // If both anonymous structs/unions are in a record context, make sure
945 // they occur in the same location in the context records.
946 if (Optional<unsigned> Index1 = findAnonymousStructOrUnionIndex(D1)) {
947 if (Optional<unsigned> Index2 = findAnonymousStructOrUnionIndex(D2)) {
948 if (*Index1 != *Index2)
954 // If both declarations are class template specializations, we know
955 // the ODR applies, so check the template and template arguments.
956 ClassTemplateSpecializationDecl *Spec1
957 = dyn_cast<ClassTemplateSpecializationDecl>(D1);
958 ClassTemplateSpecializationDecl *Spec2
959 = dyn_cast<ClassTemplateSpecializationDecl>(D2);
960 if (Spec1 && Spec2) {
961 // Check that the specialized templates are the same.
962 if (!IsStructurallyEquivalent(Context, Spec1->getSpecializedTemplate(),
963 Spec2->getSpecializedTemplate()))
966 // Check that the template arguments are the same.
967 if (Spec1->getTemplateArgs().size() != Spec2->getTemplateArgs().size())
970 for (unsigned I = 0, N = Spec1->getTemplateArgs().size(); I != N; ++I)
971 if (!IsStructurallyEquivalent(Context,
972 Spec1->getTemplateArgs().get(I),
973 Spec2->getTemplateArgs().get(I)))
976 // If one is a class template specialization and the other is not, these
977 // structures are different.
978 else if (Spec1 || Spec2)
981 // Compare the definitions of these two records. If either or both are
982 // incomplete, we assume that they are equivalent.
983 D1 = D1->getDefinition();
984 D2 = D2->getDefinition();
988 if (CXXRecordDecl *D1CXX = dyn_cast<CXXRecordDecl>(D1)) {
989 if (CXXRecordDecl *D2CXX = dyn_cast<CXXRecordDecl>(D2)) {
990 if (D1CXX->getNumBases() != D2CXX->getNumBases()) {
991 if (Context.Complain) {
992 Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
993 << Context.C2.getTypeDeclType(D2);
994 Context.Diag2(D2->getLocation(), diag::note_odr_number_of_bases)
995 << D2CXX->getNumBases();
996 Context.Diag1(D1->getLocation(), diag::note_odr_number_of_bases)
997 << D1CXX->getNumBases();
1002 // Check the base classes.
1003 for (CXXRecordDecl::base_class_iterator Base1 = D1CXX->bases_begin(),
1004 BaseEnd1 = D1CXX->bases_end(),
1005 Base2 = D2CXX->bases_begin();
1008 if (!IsStructurallyEquivalent(Context,
1009 Base1->getType(), Base2->getType())) {
1010 if (Context.Complain) {
1011 Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
1012 << Context.C2.getTypeDeclType(D2);
1013 Context.Diag2(Base2->getLocStart(), diag::note_odr_base)
1015 << Base2->getSourceRange();
1016 Context.Diag1(Base1->getLocStart(), diag::note_odr_base)
1018 << Base1->getSourceRange();
1023 // Check virtual vs. non-virtual inheritance mismatch.
1024 if (Base1->isVirtual() != Base2->isVirtual()) {
1025 if (Context.Complain) {
1026 Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
1027 << Context.C2.getTypeDeclType(D2);
1028 Context.Diag2(Base2->getLocStart(),
1029 diag::note_odr_virtual_base)
1030 << Base2->isVirtual() << Base2->getSourceRange();
1031 Context.Diag1(Base1->getLocStart(), diag::note_odr_base)
1032 << Base1->isVirtual()
1033 << Base1->getSourceRange();
1038 } else if (D1CXX->getNumBases() > 0) {
1039 if (Context.Complain) {
1040 Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
1041 << Context.C2.getTypeDeclType(D2);
1042 const CXXBaseSpecifier *Base1 = D1CXX->bases_begin();
1043 Context.Diag1(Base1->getLocStart(), diag::note_odr_base)
1045 << Base1->getSourceRange();
1046 Context.Diag2(D2->getLocation(), diag::note_odr_missing_base);
1052 // Check the fields for consistency.
1053 RecordDecl::field_iterator Field2 = D2->field_begin(),
1054 Field2End = D2->field_end();
1055 for (RecordDecl::field_iterator Field1 = D1->field_begin(),
1056 Field1End = D1->field_end();
1057 Field1 != Field1End;
1058 ++Field1, ++Field2) {
1059 if (Field2 == Field2End) {
1060 if (Context.Complain) {
1061 Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
1062 << Context.C2.getTypeDeclType(D2);
1063 Context.Diag1(Field1->getLocation(), diag::note_odr_field)
1064 << Field1->getDeclName() << Field1->getType();
1065 Context.Diag2(D2->getLocation(), diag::note_odr_missing_field);
1070 if (!IsStructurallyEquivalent(Context, *Field1, *Field2))
1074 if (Field2 != Field2End) {
1075 if (Context.Complain) {
1076 Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
1077 << Context.C2.getTypeDeclType(D2);
1078 Context.Diag2(Field2->getLocation(), diag::note_odr_field)
1079 << Field2->getDeclName() << Field2->getType();
1080 Context.Diag1(D1->getLocation(), diag::note_odr_missing_field);
1088 /// \brief Determine structural equivalence of two enums.
1089 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
1090 EnumDecl *D1, EnumDecl *D2) {
1091 EnumDecl::enumerator_iterator EC2 = D2->enumerator_begin(),
1092 EC2End = D2->enumerator_end();
1093 for (EnumDecl::enumerator_iterator EC1 = D1->enumerator_begin(),
1094 EC1End = D1->enumerator_end();
1095 EC1 != EC1End; ++EC1, ++EC2) {
1096 if (EC2 == EC2End) {
1097 if (Context.Complain) {
1098 Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
1099 << Context.C2.getTypeDeclType(D2);
1100 Context.Diag1(EC1->getLocation(), diag::note_odr_enumerator)
1101 << EC1->getDeclName()
1102 << EC1->getInitVal().toString(10);
1103 Context.Diag2(D2->getLocation(), diag::note_odr_missing_enumerator);
1108 llvm::APSInt Val1 = EC1->getInitVal();
1109 llvm::APSInt Val2 = EC2->getInitVal();
1110 if (!llvm::APSInt::isSameValue(Val1, Val2) ||
1111 !IsStructurallyEquivalent(EC1->getIdentifier(), EC2->getIdentifier())) {
1112 if (Context.Complain) {
1113 Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
1114 << Context.C2.getTypeDeclType(D2);
1115 Context.Diag2(EC2->getLocation(), diag::note_odr_enumerator)
1116 << EC2->getDeclName()
1117 << EC2->getInitVal().toString(10);
1118 Context.Diag1(EC1->getLocation(), diag::note_odr_enumerator)
1119 << EC1->getDeclName()
1120 << EC1->getInitVal().toString(10);
1126 if (EC2 != EC2End) {
1127 if (Context.Complain) {
1128 Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
1129 << Context.C2.getTypeDeclType(D2);
1130 Context.Diag2(EC2->getLocation(), diag::note_odr_enumerator)
1131 << EC2->getDeclName()
1132 << EC2->getInitVal().toString(10);
1133 Context.Diag1(D1->getLocation(), diag::note_odr_missing_enumerator);
1141 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
1142 TemplateParameterList *Params1,
1143 TemplateParameterList *Params2) {
1144 if (Params1->size() != Params2->size()) {
1145 if (Context.Complain) {
1146 Context.Diag2(Params2->getTemplateLoc(),
1147 diag::err_odr_different_num_template_parameters)
1148 << Params1->size() << Params2->size();
1149 Context.Diag1(Params1->getTemplateLoc(),
1150 diag::note_odr_template_parameter_list);
1155 for (unsigned I = 0, N = Params1->size(); I != N; ++I) {
1156 if (Params1->getParam(I)->getKind() != Params2->getParam(I)->getKind()) {
1157 if (Context.Complain) {
1158 Context.Diag2(Params2->getParam(I)->getLocation(),
1159 diag::err_odr_different_template_parameter_kind);
1160 Context.Diag1(Params1->getParam(I)->getLocation(),
1161 diag::note_odr_template_parameter_here);
1166 if (!Context.IsStructurallyEquivalent(Params1->getParam(I),
1167 Params2->getParam(I))) {
1176 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
1177 TemplateTypeParmDecl *D1,
1178 TemplateTypeParmDecl *D2) {
1179 if (D1->isParameterPack() != D2->isParameterPack()) {
1180 if (Context.Complain) {
1181 Context.Diag2(D2->getLocation(), diag::err_odr_parameter_pack_non_pack)
1182 << D2->isParameterPack();
1183 Context.Diag1(D1->getLocation(), diag::note_odr_parameter_pack_non_pack)
1184 << D1->isParameterPack();
1192 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
1193 NonTypeTemplateParmDecl *D1,
1194 NonTypeTemplateParmDecl *D2) {
1195 if (D1->isParameterPack() != D2->isParameterPack()) {
1196 if (Context.Complain) {
1197 Context.Diag2(D2->getLocation(), diag::err_odr_parameter_pack_non_pack)
1198 << D2->isParameterPack();
1199 Context.Diag1(D1->getLocation(), diag::note_odr_parameter_pack_non_pack)
1200 << D1->isParameterPack();
1206 if (!Context.IsStructurallyEquivalent(D1->getType(), D2->getType())) {
1207 if (Context.Complain) {
1208 Context.Diag2(D2->getLocation(),
1209 diag::err_odr_non_type_parameter_type_inconsistent)
1210 << D2->getType() << D1->getType();
1211 Context.Diag1(D1->getLocation(), diag::note_odr_value_here)
1220 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
1221 TemplateTemplateParmDecl *D1,
1222 TemplateTemplateParmDecl *D2) {
1223 if (D1->isParameterPack() != D2->isParameterPack()) {
1224 if (Context.Complain) {
1225 Context.Diag2(D2->getLocation(), diag::err_odr_parameter_pack_non_pack)
1226 << D2->isParameterPack();
1227 Context.Diag1(D1->getLocation(), diag::note_odr_parameter_pack_non_pack)
1228 << D1->isParameterPack();
1233 // Check template parameter lists.
1234 return IsStructurallyEquivalent(Context, D1->getTemplateParameters(),
1235 D2->getTemplateParameters());
1238 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
1239 ClassTemplateDecl *D1,
1240 ClassTemplateDecl *D2) {
1241 // Check template parameters.
1242 if (!IsStructurallyEquivalent(Context,
1243 D1->getTemplateParameters(),
1244 D2->getTemplateParameters()))
1247 // Check the templated declaration.
1248 return Context.IsStructurallyEquivalent(D1->getTemplatedDecl(),
1249 D2->getTemplatedDecl());
1252 /// \brief Determine structural equivalence of two declarations.
1253 static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
1254 Decl *D1, Decl *D2) {
1255 // FIXME: Check for known structural equivalences via a callback of some sort.
1257 // Check whether we already know that these two declarations are not
1258 // structurally equivalent.
1259 if (Context.NonEquivalentDecls.count(std::make_pair(D1->getCanonicalDecl(),
1260 D2->getCanonicalDecl())))
1263 // Determine whether we've already produced a tentative equivalence for D1.
1264 Decl *&EquivToD1 = Context.TentativeEquivalences[D1->getCanonicalDecl()];
1266 return EquivToD1 == D2->getCanonicalDecl();
1268 // Produce a tentative equivalence D1 <-> D2, which will be checked later.
1269 EquivToD1 = D2->getCanonicalDecl();
1270 Context.DeclsToCheck.push_back(D1->getCanonicalDecl());
1274 bool StructuralEquivalenceContext::IsStructurallyEquivalent(Decl *D1,
1276 if (!::IsStructurallyEquivalent(*this, D1, D2))
1282 bool StructuralEquivalenceContext::IsStructurallyEquivalent(QualType T1,
1284 if (!::IsStructurallyEquivalent(*this, T1, T2))
1290 bool StructuralEquivalenceContext::Finish() {
1291 while (!DeclsToCheck.empty()) {
1292 // Check the next declaration.
1293 Decl *D1 = DeclsToCheck.front();
1294 DeclsToCheck.pop_front();
1296 Decl *D2 = TentativeEquivalences[D1];
1297 assert(D2 && "Unrecorded tentative equivalence?");
1299 bool Equivalent = true;
1301 // FIXME: Switch on all declaration kinds. For now, we're just going to
1302 // check the obvious ones.
1303 if (RecordDecl *Record1 = dyn_cast<RecordDecl>(D1)) {
1304 if (RecordDecl *Record2 = dyn_cast<RecordDecl>(D2)) {
1305 // Check for equivalent structure names.
1306 IdentifierInfo *Name1 = Record1->getIdentifier();
1307 if (!Name1 && Record1->getTypedefNameForAnonDecl())
1308 Name1 = Record1->getTypedefNameForAnonDecl()->getIdentifier();
1309 IdentifierInfo *Name2 = Record2->getIdentifier();
1310 if (!Name2 && Record2->getTypedefNameForAnonDecl())
1311 Name2 = Record2->getTypedefNameForAnonDecl()->getIdentifier();
1312 if (!::IsStructurallyEquivalent(Name1, Name2) ||
1313 !::IsStructurallyEquivalent(*this, Record1, Record2))
1316 // Record/non-record mismatch.
1319 } else if (EnumDecl *Enum1 = dyn_cast<EnumDecl>(D1)) {
1320 if (EnumDecl *Enum2 = dyn_cast<EnumDecl>(D2)) {
1321 // Check for equivalent enum names.
1322 IdentifierInfo *Name1 = Enum1->getIdentifier();
1323 if (!Name1 && Enum1->getTypedefNameForAnonDecl())
1324 Name1 = Enum1->getTypedefNameForAnonDecl()->getIdentifier();
1325 IdentifierInfo *Name2 = Enum2->getIdentifier();
1326 if (!Name2 && Enum2->getTypedefNameForAnonDecl())
1327 Name2 = Enum2->getTypedefNameForAnonDecl()->getIdentifier();
1328 if (!::IsStructurallyEquivalent(Name1, Name2) ||
1329 !::IsStructurallyEquivalent(*this, Enum1, Enum2))
1332 // Enum/non-enum mismatch
1335 } else if (TypedefNameDecl *Typedef1 = dyn_cast<TypedefNameDecl>(D1)) {
1336 if (TypedefNameDecl *Typedef2 = dyn_cast<TypedefNameDecl>(D2)) {
1337 if (!::IsStructurallyEquivalent(Typedef1->getIdentifier(),
1338 Typedef2->getIdentifier()) ||
1339 !::IsStructurallyEquivalent(*this,
1340 Typedef1->getUnderlyingType(),
1341 Typedef2->getUnderlyingType()))
1344 // Typedef/non-typedef mismatch.
1347 } else if (ClassTemplateDecl *ClassTemplate1
1348 = dyn_cast<ClassTemplateDecl>(D1)) {
1349 if (ClassTemplateDecl *ClassTemplate2 = dyn_cast<ClassTemplateDecl>(D2)) {
1350 if (!::IsStructurallyEquivalent(ClassTemplate1->getIdentifier(),
1351 ClassTemplate2->getIdentifier()) ||
1352 !::IsStructurallyEquivalent(*this, ClassTemplate1, ClassTemplate2))
1355 // Class template/non-class-template mismatch.
1358 } else if (TemplateTypeParmDecl *TTP1= dyn_cast<TemplateTypeParmDecl>(D1)) {
1359 if (TemplateTypeParmDecl *TTP2 = dyn_cast<TemplateTypeParmDecl>(D2)) {
1360 if (!::IsStructurallyEquivalent(*this, TTP1, TTP2))
1366 } else if (NonTypeTemplateParmDecl *NTTP1
1367 = dyn_cast<NonTypeTemplateParmDecl>(D1)) {
1368 if (NonTypeTemplateParmDecl *NTTP2
1369 = dyn_cast<NonTypeTemplateParmDecl>(D2)) {
1370 if (!::IsStructurallyEquivalent(*this, NTTP1, NTTP2))
1376 } else if (TemplateTemplateParmDecl *TTP1
1377 = dyn_cast<TemplateTemplateParmDecl>(D1)) {
1378 if (TemplateTemplateParmDecl *TTP2
1379 = dyn_cast<TemplateTemplateParmDecl>(D2)) {
1380 if (!::IsStructurallyEquivalent(*this, TTP1, TTP2))
1389 // Note that these two declarations are not equivalent (and we already
1391 NonEquivalentDecls.insert(std::make_pair(D1->getCanonicalDecl(),
1392 D2->getCanonicalDecl()));
1395 // FIXME: Check other declaration kinds!
1401 //----------------------------------------------------------------------------
1403 //----------------------------------------------------------------------------
1405 QualType ASTNodeImporter::VisitType(const Type *T) {
1406 Importer.FromDiag(SourceLocation(), diag::err_unsupported_ast_node)
1407 << T->getTypeClassName();
1411 QualType ASTNodeImporter::VisitBuiltinType(const BuiltinType *T) {
1412 switch (T->getKind()) {
1413 #define SHARED_SINGLETON_TYPE(Expansion)
1414 #define BUILTIN_TYPE(Id, SingletonId) \
1415 case BuiltinType::Id: return Importer.getToContext().SingletonId;
1416 #include "clang/AST/BuiltinTypes.def"
1418 // FIXME: for Char16, Char32, and NullPtr, make sure that the "to"
1419 // context supports C++.
1421 // FIXME: for ObjCId, ObjCClass, and ObjCSel, make sure that the "to"
1422 // context supports ObjC.
1424 case BuiltinType::Char_U:
1425 // The context we're importing from has an unsigned 'char'. If we're
1426 // importing into a context with a signed 'char', translate to
1427 // 'unsigned char' instead.
1428 if (Importer.getToContext().getLangOpts().CharIsSigned)
1429 return Importer.getToContext().UnsignedCharTy;
1431 return Importer.getToContext().CharTy;
1433 case BuiltinType::Char_S:
1434 // The context we're importing from has an unsigned 'char'. If we're
1435 // importing into a context with a signed 'char', translate to
1436 // 'unsigned char' instead.
1437 if (!Importer.getToContext().getLangOpts().CharIsSigned)
1438 return Importer.getToContext().SignedCharTy;
1440 return Importer.getToContext().CharTy;
1442 case BuiltinType::WChar_S:
1443 case BuiltinType::WChar_U:
1444 // FIXME: If not in C++, shall we translate to the C equivalent of
1446 return Importer.getToContext().WCharTy;
1449 llvm_unreachable("Invalid BuiltinType Kind!");
1452 QualType ASTNodeImporter::VisitComplexType(const ComplexType *T) {
1453 QualType ToElementType = Importer.Import(T->getElementType());
1454 if (ToElementType.isNull())
1457 return Importer.getToContext().getComplexType(ToElementType);
1460 QualType ASTNodeImporter::VisitPointerType(const PointerType *T) {
1461 QualType ToPointeeType = Importer.Import(T->getPointeeType());
1462 if (ToPointeeType.isNull())
1465 return Importer.getToContext().getPointerType(ToPointeeType);
1468 QualType ASTNodeImporter::VisitBlockPointerType(const BlockPointerType *T) {
1469 // FIXME: Check for blocks support in "to" context.
1470 QualType ToPointeeType = Importer.Import(T->getPointeeType());
1471 if (ToPointeeType.isNull())
1474 return Importer.getToContext().getBlockPointerType(ToPointeeType);
1478 ASTNodeImporter::VisitLValueReferenceType(const LValueReferenceType *T) {
1479 // FIXME: Check for C++ support in "to" context.
1480 QualType ToPointeeType = Importer.Import(T->getPointeeTypeAsWritten());
1481 if (ToPointeeType.isNull())
1484 return Importer.getToContext().getLValueReferenceType(ToPointeeType);
1488 ASTNodeImporter::VisitRValueReferenceType(const RValueReferenceType *T) {
1489 // FIXME: Check for C++0x support in "to" context.
1490 QualType ToPointeeType = Importer.Import(T->getPointeeTypeAsWritten());
1491 if (ToPointeeType.isNull())
1494 return Importer.getToContext().getRValueReferenceType(ToPointeeType);
1497 QualType ASTNodeImporter::VisitMemberPointerType(const MemberPointerType *T) {
1498 // FIXME: Check for C++ support in "to" context.
1499 QualType ToPointeeType = Importer.Import(T->getPointeeType());
1500 if (ToPointeeType.isNull())
1503 QualType ClassType = Importer.Import(QualType(T->getClass(), 0));
1504 return Importer.getToContext().getMemberPointerType(ToPointeeType,
1505 ClassType.getTypePtr());
1508 QualType ASTNodeImporter::VisitConstantArrayType(const ConstantArrayType *T) {
1509 QualType ToElementType = Importer.Import(T->getElementType());
1510 if (ToElementType.isNull())
1513 return Importer.getToContext().getConstantArrayType(ToElementType,
1515 T->getSizeModifier(),
1516 T->getIndexTypeCVRQualifiers());
1520 ASTNodeImporter::VisitIncompleteArrayType(const IncompleteArrayType *T) {
1521 QualType ToElementType = Importer.Import(T->getElementType());
1522 if (ToElementType.isNull())
1525 return Importer.getToContext().getIncompleteArrayType(ToElementType,
1526 T->getSizeModifier(),
1527 T->getIndexTypeCVRQualifiers());
1530 QualType ASTNodeImporter::VisitVariableArrayType(const VariableArrayType *T) {
1531 QualType ToElementType = Importer.Import(T->getElementType());
1532 if (ToElementType.isNull())
1535 Expr *Size = Importer.Import(T->getSizeExpr());
1539 SourceRange Brackets = Importer.Import(T->getBracketsRange());
1540 return Importer.getToContext().getVariableArrayType(ToElementType, Size,
1541 T->getSizeModifier(),
1542 T->getIndexTypeCVRQualifiers(),
1546 QualType ASTNodeImporter::VisitVectorType(const VectorType *T) {
1547 QualType ToElementType = Importer.Import(T->getElementType());
1548 if (ToElementType.isNull())
1551 return Importer.getToContext().getVectorType(ToElementType,
1552 T->getNumElements(),
1553 T->getVectorKind());
1556 QualType ASTNodeImporter::VisitExtVectorType(const ExtVectorType *T) {
1557 QualType ToElementType = Importer.Import(T->getElementType());
1558 if (ToElementType.isNull())
1561 return Importer.getToContext().getExtVectorType(ToElementType,
1562 T->getNumElements());
1566 ASTNodeImporter::VisitFunctionNoProtoType(const FunctionNoProtoType *T) {
1567 // FIXME: What happens if we're importing a function without a prototype
1568 // into C++? Should we make it variadic?
1569 QualType ToResultType = Importer.Import(T->getResultType());
1570 if (ToResultType.isNull())
1573 return Importer.getToContext().getFunctionNoProtoType(ToResultType,
1577 QualType ASTNodeImporter::VisitFunctionProtoType(const FunctionProtoType *T) {
1578 QualType ToResultType = Importer.Import(T->getResultType());
1579 if (ToResultType.isNull())
1582 // Import argument types
1583 SmallVector<QualType, 4> ArgTypes;
1584 for (FunctionProtoType::arg_type_iterator A = T->arg_type_begin(),
1585 AEnd = T->arg_type_end();
1587 QualType ArgType = Importer.Import(*A);
1588 if (ArgType.isNull())
1590 ArgTypes.push_back(ArgType);
1593 // Import exception types
1594 SmallVector<QualType, 4> ExceptionTypes;
1595 for (FunctionProtoType::exception_iterator E = T->exception_begin(),
1596 EEnd = T->exception_end();
1598 QualType ExceptionType = Importer.Import(*E);
1599 if (ExceptionType.isNull())
1601 ExceptionTypes.push_back(ExceptionType);
1604 FunctionProtoType::ExtProtoInfo FromEPI = T->getExtProtoInfo();
1605 FunctionProtoType::ExtProtoInfo ToEPI;
1607 ToEPI.ExtInfo = FromEPI.ExtInfo;
1608 ToEPI.Variadic = FromEPI.Variadic;
1609 ToEPI.HasTrailingReturn = FromEPI.HasTrailingReturn;
1610 ToEPI.TypeQuals = FromEPI.TypeQuals;
1611 ToEPI.RefQualifier = FromEPI.RefQualifier;
1612 ToEPI.NumExceptions = ExceptionTypes.size();
1613 ToEPI.Exceptions = ExceptionTypes.data();
1614 ToEPI.ConsumedArguments = FromEPI.ConsumedArguments;
1615 ToEPI.ExceptionSpecType = FromEPI.ExceptionSpecType;
1616 ToEPI.NoexceptExpr = Importer.Import(FromEPI.NoexceptExpr);
1617 ToEPI.ExceptionSpecDecl = cast_or_null<FunctionDecl>(
1618 Importer.Import(FromEPI.ExceptionSpecDecl));
1619 ToEPI.ExceptionSpecTemplate = cast_or_null<FunctionDecl>(
1620 Importer.Import(FromEPI.ExceptionSpecTemplate));
1622 return Importer.getToContext().getFunctionType(ToResultType, ArgTypes, ToEPI);
1625 QualType ASTNodeImporter::VisitParenType(const ParenType *T) {
1626 QualType ToInnerType = Importer.Import(T->getInnerType());
1627 if (ToInnerType.isNull())
1630 return Importer.getToContext().getParenType(ToInnerType);
1633 QualType ASTNodeImporter::VisitTypedefType(const TypedefType *T) {
1634 TypedefNameDecl *ToDecl
1635 = dyn_cast_or_null<TypedefNameDecl>(Importer.Import(T->getDecl()));
1639 return Importer.getToContext().getTypeDeclType(ToDecl);
1642 QualType ASTNodeImporter::VisitTypeOfExprType(const TypeOfExprType *T) {
1643 Expr *ToExpr = Importer.Import(T->getUnderlyingExpr());
1647 return Importer.getToContext().getTypeOfExprType(ToExpr);
1650 QualType ASTNodeImporter::VisitTypeOfType(const TypeOfType *T) {
1651 QualType ToUnderlyingType = Importer.Import(T->getUnderlyingType());
1652 if (ToUnderlyingType.isNull())
1655 return Importer.getToContext().getTypeOfType(ToUnderlyingType);
1658 QualType ASTNodeImporter::VisitDecltypeType(const DecltypeType *T) {
1659 // FIXME: Make sure that the "to" context supports C++0x!
1660 Expr *ToExpr = Importer.Import(T->getUnderlyingExpr());
1664 QualType UnderlyingType = Importer.Import(T->getUnderlyingType());
1665 if (UnderlyingType.isNull())
1668 return Importer.getToContext().getDecltypeType(ToExpr, UnderlyingType);
1671 QualType ASTNodeImporter::VisitUnaryTransformType(const UnaryTransformType *T) {
1672 QualType ToBaseType = Importer.Import(T->getBaseType());
1673 QualType ToUnderlyingType = Importer.Import(T->getUnderlyingType());
1674 if (ToBaseType.isNull() || ToUnderlyingType.isNull())
1677 return Importer.getToContext().getUnaryTransformType(ToBaseType,
1682 QualType ASTNodeImporter::VisitAutoType(const AutoType *T) {
1683 // FIXME: Make sure that the "to" context supports C++0x!
1684 QualType FromDeduced = T->getDeducedType();
1686 if (!FromDeduced.isNull()) {
1687 ToDeduced = Importer.Import(FromDeduced);
1688 if (ToDeduced.isNull())
1692 return Importer.getToContext().getAutoType(ToDeduced);
1695 QualType ASTNodeImporter::VisitRecordType(const RecordType *T) {
1697 = dyn_cast_or_null<RecordDecl>(Importer.Import(T->getDecl()));
1701 return Importer.getToContext().getTagDeclType(ToDecl);
1704 QualType ASTNodeImporter::VisitEnumType(const EnumType *T) {
1706 = dyn_cast_or_null<EnumDecl>(Importer.Import(T->getDecl()));
1710 return Importer.getToContext().getTagDeclType(ToDecl);
1713 QualType ASTNodeImporter::VisitTemplateSpecializationType(
1714 const TemplateSpecializationType *T) {
1715 TemplateName ToTemplate = Importer.Import(T->getTemplateName());
1716 if (ToTemplate.isNull())
1719 SmallVector<TemplateArgument, 2> ToTemplateArgs;
1720 if (ImportTemplateArguments(T->getArgs(), T->getNumArgs(), ToTemplateArgs))
1723 QualType ToCanonType;
1724 if (!QualType(T, 0).isCanonical()) {
1725 QualType FromCanonType
1726 = Importer.getFromContext().getCanonicalType(QualType(T, 0));
1727 ToCanonType =Importer.Import(FromCanonType);
1728 if (ToCanonType.isNull())
1731 return Importer.getToContext().getTemplateSpecializationType(ToTemplate,
1732 ToTemplateArgs.data(),
1733 ToTemplateArgs.size(),
1737 QualType ASTNodeImporter::VisitElaboratedType(const ElaboratedType *T) {
1738 NestedNameSpecifier *ToQualifier = 0;
1739 // Note: the qualifier in an ElaboratedType is optional.
1740 if (T->getQualifier()) {
1741 ToQualifier = Importer.Import(T->getQualifier());
1746 QualType ToNamedType = Importer.Import(T->getNamedType());
1747 if (ToNamedType.isNull())
1750 return Importer.getToContext().getElaboratedType(T->getKeyword(),
1751 ToQualifier, ToNamedType);
1754 QualType ASTNodeImporter::VisitObjCInterfaceType(const ObjCInterfaceType *T) {
1755 ObjCInterfaceDecl *Class
1756 = dyn_cast_or_null<ObjCInterfaceDecl>(Importer.Import(T->getDecl()));
1760 return Importer.getToContext().getObjCInterfaceType(Class);
1763 QualType ASTNodeImporter::VisitObjCObjectType(const ObjCObjectType *T) {
1764 QualType ToBaseType = Importer.Import(T->getBaseType());
1765 if (ToBaseType.isNull())
1768 SmallVector<ObjCProtocolDecl *, 4> Protocols;
1769 for (ObjCObjectType::qual_iterator P = T->qual_begin(),
1770 PEnd = T->qual_end();
1772 ObjCProtocolDecl *Protocol
1773 = dyn_cast_or_null<ObjCProtocolDecl>(Importer.Import(*P));
1776 Protocols.push_back(Protocol);
1779 return Importer.getToContext().getObjCObjectType(ToBaseType,
1785 ASTNodeImporter::VisitObjCObjectPointerType(const ObjCObjectPointerType *T) {
1786 QualType ToPointeeType = Importer.Import(T->getPointeeType());
1787 if (ToPointeeType.isNull())
1790 return Importer.getToContext().getObjCObjectPointerType(ToPointeeType);
1793 //----------------------------------------------------------------------------
1794 // Import Declarations
1795 //----------------------------------------------------------------------------
1796 bool ASTNodeImporter::ImportDeclParts(NamedDecl *D, DeclContext *&DC,
1797 DeclContext *&LexicalDC,
1798 DeclarationName &Name,
1799 SourceLocation &Loc) {
1800 // Import the context of this declaration.
1801 DC = Importer.ImportContext(D->getDeclContext());
1806 if (D->getDeclContext() != D->getLexicalDeclContext()) {
1807 LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
1812 // Import the name of this declaration.
1813 Name = Importer.Import(D->getDeclName());
1814 if (D->getDeclName() && !Name)
1817 // Import the location of this declaration.
1818 Loc = Importer.Import(D->getLocation());
1822 void ASTNodeImporter::ImportDefinitionIfNeeded(Decl *FromD, Decl *ToD) {
1827 ToD = Importer.Import(FromD);
1832 if (RecordDecl *FromRecord = dyn_cast<RecordDecl>(FromD)) {
1833 if (RecordDecl *ToRecord = cast_or_null<RecordDecl>(ToD)) {
1834 if (FromRecord->getDefinition() && FromRecord->isCompleteDefinition() && !ToRecord->getDefinition()) {
1835 ImportDefinition(FromRecord, ToRecord);
1841 if (EnumDecl *FromEnum = dyn_cast<EnumDecl>(FromD)) {
1842 if (EnumDecl *ToEnum = cast_or_null<EnumDecl>(ToD)) {
1843 if (FromEnum->getDefinition() && !ToEnum->getDefinition()) {
1844 ImportDefinition(FromEnum, ToEnum);
1852 ASTNodeImporter::ImportDeclarationNameLoc(const DeclarationNameInfo &From,
1853 DeclarationNameInfo& To) {
1854 // NOTE: To.Name and To.Loc are already imported.
1855 // We only have to import To.LocInfo.
1856 switch (To.getName().getNameKind()) {
1857 case DeclarationName::Identifier:
1858 case DeclarationName::ObjCZeroArgSelector:
1859 case DeclarationName::ObjCOneArgSelector:
1860 case DeclarationName::ObjCMultiArgSelector:
1861 case DeclarationName::CXXUsingDirective:
1864 case DeclarationName::CXXOperatorName: {
1865 SourceRange Range = From.getCXXOperatorNameRange();
1866 To.setCXXOperatorNameRange(Importer.Import(Range));
1869 case DeclarationName::CXXLiteralOperatorName: {
1870 SourceLocation Loc = From.getCXXLiteralOperatorNameLoc();
1871 To.setCXXLiteralOperatorNameLoc(Importer.Import(Loc));
1874 case DeclarationName::CXXConstructorName:
1875 case DeclarationName::CXXDestructorName:
1876 case DeclarationName::CXXConversionFunctionName: {
1877 TypeSourceInfo *FromTInfo = From.getNamedTypeInfo();
1878 To.setNamedTypeInfo(Importer.Import(FromTInfo));
1882 llvm_unreachable("Unknown name kind.");
1885 void ASTNodeImporter::ImportDeclContext(DeclContext *FromDC, bool ForceImport) {
1886 if (Importer.isMinimalImport() && !ForceImport) {
1887 Importer.ImportContext(FromDC);
1891 for (DeclContext::decl_iterator From = FromDC->decls_begin(),
1892 FromEnd = FromDC->decls_end();
1895 Importer.Import(*From);
1898 bool ASTNodeImporter::ImportDefinition(RecordDecl *From, RecordDecl *To,
1899 ImportDefinitionKind Kind) {
1900 if (To->getDefinition() || To->isBeingDefined()) {
1901 if (Kind == IDK_Everything)
1902 ImportDeclContext(From, /*ForceImport=*/true);
1907 To->startDefinition();
1909 // Add base classes.
1910 if (CXXRecordDecl *ToCXX = dyn_cast<CXXRecordDecl>(To)) {
1911 CXXRecordDecl *FromCXX = cast<CXXRecordDecl>(From);
1913 struct CXXRecordDecl::DefinitionData &ToData = ToCXX->data();
1914 struct CXXRecordDecl::DefinitionData &FromData = FromCXX->data();
1915 ToData.UserDeclaredConstructor = FromData.UserDeclaredConstructor;
1916 ToData.UserDeclaredSpecialMembers = FromData.UserDeclaredSpecialMembers;
1917 ToData.Aggregate = FromData.Aggregate;
1918 ToData.PlainOldData = FromData.PlainOldData;
1919 ToData.Empty = FromData.Empty;
1920 ToData.Polymorphic = FromData.Polymorphic;
1921 ToData.Abstract = FromData.Abstract;
1922 ToData.IsStandardLayout = FromData.IsStandardLayout;
1923 ToData.HasNoNonEmptyBases = FromData.HasNoNonEmptyBases;
1924 ToData.HasPrivateFields = FromData.HasPrivateFields;
1925 ToData.HasProtectedFields = FromData.HasProtectedFields;
1926 ToData.HasPublicFields = FromData.HasPublicFields;
1927 ToData.HasMutableFields = FromData.HasMutableFields;
1928 ToData.HasOnlyCMembers = FromData.HasOnlyCMembers;
1929 ToData.HasInClassInitializer = FromData.HasInClassInitializer;
1930 ToData.HasUninitializedReferenceMember
1931 = FromData.HasUninitializedReferenceMember;
1932 ToData.NeedOverloadResolutionForMoveConstructor
1933 = FromData.NeedOverloadResolutionForMoveConstructor;
1934 ToData.NeedOverloadResolutionForMoveAssignment
1935 = FromData.NeedOverloadResolutionForMoveAssignment;
1936 ToData.NeedOverloadResolutionForDestructor
1937 = FromData.NeedOverloadResolutionForDestructor;
1938 ToData.DefaultedMoveConstructorIsDeleted
1939 = FromData.DefaultedMoveConstructorIsDeleted;
1940 ToData.DefaultedMoveAssignmentIsDeleted
1941 = FromData.DefaultedMoveAssignmentIsDeleted;
1942 ToData.DefaultedDestructorIsDeleted = FromData.DefaultedDestructorIsDeleted;
1943 ToData.HasTrivialSpecialMembers = FromData.HasTrivialSpecialMembers;
1944 ToData.HasIrrelevantDestructor = FromData.HasIrrelevantDestructor;
1945 ToData.HasConstexprNonCopyMoveConstructor
1946 = FromData.HasConstexprNonCopyMoveConstructor;
1947 ToData.DefaultedDefaultConstructorIsConstexpr
1948 = FromData.DefaultedDefaultConstructorIsConstexpr;
1949 ToData.HasConstexprDefaultConstructor
1950 = FromData.HasConstexprDefaultConstructor;
1951 ToData.HasNonLiteralTypeFieldsOrBases
1952 = FromData.HasNonLiteralTypeFieldsOrBases;
1953 // ComputedVisibleConversions not imported.
1954 ToData.UserProvidedDefaultConstructor
1955 = FromData.UserProvidedDefaultConstructor;
1956 ToData.DeclaredSpecialMembers = FromData.DeclaredSpecialMembers;
1957 ToData.ImplicitCopyConstructorHasConstParam
1958 = FromData.ImplicitCopyConstructorHasConstParam;
1959 ToData.ImplicitCopyAssignmentHasConstParam
1960 = FromData.ImplicitCopyAssignmentHasConstParam;
1961 ToData.HasDeclaredCopyConstructorWithConstParam
1962 = FromData.HasDeclaredCopyConstructorWithConstParam;
1963 ToData.HasDeclaredCopyAssignmentWithConstParam
1964 = FromData.HasDeclaredCopyAssignmentWithConstParam;
1965 ToData.FailedImplicitMoveConstructor
1966 = FromData.FailedImplicitMoveConstructor;
1967 ToData.FailedImplicitMoveAssignment = FromData.FailedImplicitMoveAssignment;
1968 ToData.IsLambda = FromData.IsLambda;
1970 SmallVector<CXXBaseSpecifier *, 4> Bases;
1971 for (CXXRecordDecl::base_class_iterator
1972 Base1 = FromCXX->bases_begin(),
1973 FromBaseEnd = FromCXX->bases_end();
1974 Base1 != FromBaseEnd;
1976 QualType T = Importer.Import(Base1->getType());
1980 SourceLocation EllipsisLoc;
1981 if (Base1->isPackExpansion())
1982 EllipsisLoc = Importer.Import(Base1->getEllipsisLoc());
1984 // Ensure that we have a definition for the base.
1985 ImportDefinitionIfNeeded(Base1->getType()->getAsCXXRecordDecl());
1988 new (Importer.getToContext())
1989 CXXBaseSpecifier(Importer.Import(Base1->getSourceRange()),
1991 Base1->isBaseOfClass(),
1992 Base1->getAccessSpecifierAsWritten(),
1993 Importer.Import(Base1->getTypeSourceInfo()),
1997 ToCXX->setBases(Bases.data(), Bases.size());
2000 if (shouldForceImportDeclContext(Kind))
2001 ImportDeclContext(From, /*ForceImport=*/true);
2003 To->completeDefinition();
2007 bool ASTNodeImporter::ImportDefinition(EnumDecl *From, EnumDecl *To,
2008 ImportDefinitionKind Kind) {
2009 if (To->getDefinition() || To->isBeingDefined()) {
2010 if (Kind == IDK_Everything)
2011 ImportDeclContext(From, /*ForceImport=*/true);
2015 To->startDefinition();
2017 QualType T = Importer.Import(Importer.getFromContext().getTypeDeclType(From));
2021 QualType ToPromotionType = Importer.Import(From->getPromotionType());
2022 if (ToPromotionType.isNull())
2025 if (shouldForceImportDeclContext(Kind))
2026 ImportDeclContext(From, /*ForceImport=*/true);
2028 // FIXME: we might need to merge the number of positive or negative bits
2029 // if the enumerator lists don't match.
2030 To->completeDefinition(T, ToPromotionType,
2031 From->getNumPositiveBits(),
2032 From->getNumNegativeBits());
2036 TemplateParameterList *ASTNodeImporter::ImportTemplateParameterList(
2037 TemplateParameterList *Params) {
2038 SmallVector<NamedDecl *, 4> ToParams;
2039 ToParams.reserve(Params->size());
2040 for (TemplateParameterList::iterator P = Params->begin(),
2041 PEnd = Params->end();
2043 Decl *To = Importer.Import(*P);
2047 ToParams.push_back(cast<NamedDecl>(To));
2050 return TemplateParameterList::Create(Importer.getToContext(),
2051 Importer.Import(Params->getTemplateLoc()),
2052 Importer.Import(Params->getLAngleLoc()),
2053 ToParams.data(), ToParams.size(),
2054 Importer.Import(Params->getRAngleLoc()));
2058 ASTNodeImporter::ImportTemplateArgument(const TemplateArgument &From) {
2059 switch (From.getKind()) {
2060 case TemplateArgument::Null:
2061 return TemplateArgument();
2063 case TemplateArgument::Type: {
2064 QualType ToType = Importer.Import(From.getAsType());
2065 if (ToType.isNull())
2066 return TemplateArgument();
2067 return TemplateArgument(ToType);
2070 case TemplateArgument::Integral: {
2071 QualType ToType = Importer.Import(From.getIntegralType());
2072 if (ToType.isNull())
2073 return TemplateArgument();
2074 return TemplateArgument(From, ToType);
2077 case TemplateArgument::Declaration: {
2078 ValueDecl *FromD = From.getAsDecl();
2079 if (ValueDecl *To = cast_or_null<ValueDecl>(Importer.Import(FromD)))
2080 return TemplateArgument(To, From.isDeclForReferenceParam());
2081 return TemplateArgument();
2084 case TemplateArgument::NullPtr: {
2085 QualType ToType = Importer.Import(From.getNullPtrType());
2086 if (ToType.isNull())
2087 return TemplateArgument();
2088 return TemplateArgument(ToType, /*isNullPtr*/true);
2091 case TemplateArgument::Template: {
2092 TemplateName ToTemplate = Importer.Import(From.getAsTemplate());
2093 if (ToTemplate.isNull())
2094 return TemplateArgument();
2096 return TemplateArgument(ToTemplate);
2099 case TemplateArgument::TemplateExpansion: {
2100 TemplateName ToTemplate
2101 = Importer.Import(From.getAsTemplateOrTemplatePattern());
2102 if (ToTemplate.isNull())
2103 return TemplateArgument();
2105 return TemplateArgument(ToTemplate, From.getNumTemplateExpansions());
2108 case TemplateArgument::Expression:
2109 if (Expr *ToExpr = Importer.Import(From.getAsExpr()))
2110 return TemplateArgument(ToExpr);
2111 return TemplateArgument();
2113 case TemplateArgument::Pack: {
2114 SmallVector<TemplateArgument, 2> ToPack;
2115 ToPack.reserve(From.pack_size());
2116 if (ImportTemplateArguments(From.pack_begin(), From.pack_size(), ToPack))
2117 return TemplateArgument();
2119 TemplateArgument *ToArgs
2120 = new (Importer.getToContext()) TemplateArgument[ToPack.size()];
2121 std::copy(ToPack.begin(), ToPack.end(), ToArgs);
2122 return TemplateArgument(ToArgs, ToPack.size());
2126 llvm_unreachable("Invalid template argument kind");
2129 bool ASTNodeImporter::ImportTemplateArguments(const TemplateArgument *FromArgs,
2130 unsigned NumFromArgs,
2131 SmallVectorImpl<TemplateArgument> &ToArgs) {
2132 for (unsigned I = 0; I != NumFromArgs; ++I) {
2133 TemplateArgument To = ImportTemplateArgument(FromArgs[I]);
2134 if (To.isNull() && !FromArgs[I].isNull())
2137 ToArgs.push_back(To);
2143 bool ASTNodeImporter::IsStructuralMatch(RecordDecl *FromRecord,
2144 RecordDecl *ToRecord, bool Complain) {
2145 StructuralEquivalenceContext Ctx(Importer.getFromContext(),
2146 Importer.getToContext(),
2147 Importer.getNonEquivalentDecls(),
2149 return Ctx.IsStructurallyEquivalent(FromRecord, ToRecord);
2152 bool ASTNodeImporter::IsStructuralMatch(EnumDecl *FromEnum, EnumDecl *ToEnum) {
2153 StructuralEquivalenceContext Ctx(Importer.getFromContext(),
2154 Importer.getToContext(),
2155 Importer.getNonEquivalentDecls());
2156 return Ctx.IsStructurallyEquivalent(FromEnum, ToEnum);
2159 bool ASTNodeImporter::IsStructuralMatch(EnumConstantDecl *FromEC,
2160 EnumConstantDecl *ToEC)
2162 const llvm::APSInt &FromVal = FromEC->getInitVal();
2163 const llvm::APSInt &ToVal = ToEC->getInitVal();
2165 return FromVal.isSigned() == ToVal.isSigned() &&
2166 FromVal.getBitWidth() == ToVal.getBitWidth() &&
2170 bool ASTNodeImporter::IsStructuralMatch(ClassTemplateDecl *From,
2171 ClassTemplateDecl *To) {
2172 StructuralEquivalenceContext Ctx(Importer.getFromContext(),
2173 Importer.getToContext(),
2174 Importer.getNonEquivalentDecls());
2175 return Ctx.IsStructurallyEquivalent(From, To);
2178 Decl *ASTNodeImporter::VisitDecl(Decl *D) {
2179 Importer.FromDiag(D->getLocation(), diag::err_unsupported_ast_node)
2180 << D->getDeclKindName();
2184 Decl *ASTNodeImporter::VisitTranslationUnitDecl(TranslationUnitDecl *D) {
2185 TranslationUnitDecl *ToD =
2186 Importer.getToContext().getTranslationUnitDecl();
2188 Importer.Imported(D, ToD);
2193 Decl *ASTNodeImporter::VisitNamespaceDecl(NamespaceDecl *D) {
2194 // Import the major distinguishing characteristics of this namespace.
2195 DeclContext *DC, *LexicalDC;
2196 DeclarationName Name;
2198 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
2201 NamespaceDecl *MergeWithNamespace = 0;
2203 // This is an anonymous namespace. Adopt an existing anonymous
2204 // namespace if we can.
2205 // FIXME: Not testable.
2206 if (TranslationUnitDecl *TU = dyn_cast<TranslationUnitDecl>(DC))
2207 MergeWithNamespace = TU->getAnonymousNamespace();
2209 MergeWithNamespace = cast<NamespaceDecl>(DC)->getAnonymousNamespace();
2211 SmallVector<NamedDecl *, 4> ConflictingDecls;
2212 SmallVector<NamedDecl *, 2> FoundDecls;
2213 DC->localUncachedLookup(Name, FoundDecls);
2214 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
2215 if (!FoundDecls[I]->isInIdentifierNamespace(Decl::IDNS_Namespace))
2218 if (NamespaceDecl *FoundNS = dyn_cast<NamespaceDecl>(FoundDecls[I])) {
2219 MergeWithNamespace = FoundNS;
2220 ConflictingDecls.clear();
2224 ConflictingDecls.push_back(FoundDecls[I]);
2227 if (!ConflictingDecls.empty()) {
2228 Name = Importer.HandleNameConflict(Name, DC, Decl::IDNS_Namespace,
2229 ConflictingDecls.data(),
2230 ConflictingDecls.size());
2234 // Create the "to" namespace, if needed.
2235 NamespaceDecl *ToNamespace = MergeWithNamespace;
2237 ToNamespace = NamespaceDecl::Create(Importer.getToContext(), DC,
2239 Importer.Import(D->getLocStart()),
2240 Loc, Name.getAsIdentifierInfo(),
2242 ToNamespace->setLexicalDeclContext(LexicalDC);
2243 LexicalDC->addDeclInternal(ToNamespace);
2245 // If this is an anonymous namespace, register it as the anonymous
2246 // namespace within its context.
2248 if (TranslationUnitDecl *TU = dyn_cast<TranslationUnitDecl>(DC))
2249 TU->setAnonymousNamespace(ToNamespace);
2251 cast<NamespaceDecl>(DC)->setAnonymousNamespace(ToNamespace);
2254 Importer.Imported(D, ToNamespace);
2256 ImportDeclContext(D);
2261 Decl *ASTNodeImporter::VisitTypedefNameDecl(TypedefNameDecl *D, bool IsAlias) {
2262 // Import the major distinguishing characteristics of this typedef.
2263 DeclContext *DC, *LexicalDC;
2264 DeclarationName Name;
2266 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
2269 // If this typedef is not in block scope, determine whether we've
2270 // seen a typedef with the same name (that we can merge with) or any
2271 // other entity by that name (which name lookup could conflict with).
2272 if (!DC->isFunctionOrMethod()) {
2273 SmallVector<NamedDecl *, 4> ConflictingDecls;
2274 unsigned IDNS = Decl::IDNS_Ordinary;
2275 SmallVector<NamedDecl *, 2> FoundDecls;
2276 DC->localUncachedLookup(Name, FoundDecls);
2277 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
2278 if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
2280 if (TypedefNameDecl *FoundTypedef =
2281 dyn_cast<TypedefNameDecl>(FoundDecls[I])) {
2282 if (Importer.IsStructurallyEquivalent(D->getUnderlyingType(),
2283 FoundTypedef->getUnderlyingType()))
2284 return Importer.Imported(D, FoundTypedef);
2287 ConflictingDecls.push_back(FoundDecls[I]);
2290 if (!ConflictingDecls.empty()) {
2291 Name = Importer.HandleNameConflict(Name, DC, IDNS,
2292 ConflictingDecls.data(),
2293 ConflictingDecls.size());
2299 // Import the underlying type of this typedef;
2300 QualType T = Importer.Import(D->getUnderlyingType());
2304 // Create the new typedef node.
2305 TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
2306 SourceLocation StartL = Importer.Import(D->getLocStart());
2307 TypedefNameDecl *ToTypedef;
2309 ToTypedef = TypeAliasDecl::Create(Importer.getToContext(), DC,
2311 Name.getAsIdentifierInfo(),
2314 ToTypedef = TypedefDecl::Create(Importer.getToContext(), DC,
2316 Name.getAsIdentifierInfo(),
2319 ToTypedef->setAccess(D->getAccess());
2320 ToTypedef->setLexicalDeclContext(LexicalDC);
2321 Importer.Imported(D, ToTypedef);
2322 LexicalDC->addDeclInternal(ToTypedef);
2327 Decl *ASTNodeImporter::VisitTypedefDecl(TypedefDecl *D) {
2328 return VisitTypedefNameDecl(D, /*IsAlias=*/false);
2331 Decl *ASTNodeImporter::VisitTypeAliasDecl(TypeAliasDecl *D) {
2332 return VisitTypedefNameDecl(D, /*IsAlias=*/true);
2335 Decl *ASTNodeImporter::VisitEnumDecl(EnumDecl *D) {
2336 // Import the major distinguishing characteristics of this enum.
2337 DeclContext *DC, *LexicalDC;
2338 DeclarationName Name;
2340 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
2343 // Figure out what enum name we're looking for.
2344 unsigned IDNS = Decl::IDNS_Tag;
2345 DeclarationName SearchName = Name;
2346 if (!SearchName && D->getTypedefNameForAnonDecl()) {
2347 SearchName = Importer.Import(D->getTypedefNameForAnonDecl()->getDeclName());
2348 IDNS = Decl::IDNS_Ordinary;
2349 } else if (Importer.getToContext().getLangOpts().CPlusPlus)
2350 IDNS |= Decl::IDNS_Ordinary;
2352 // We may already have an enum of the same name; try to find and match it.
2353 if (!DC->isFunctionOrMethod() && SearchName) {
2354 SmallVector<NamedDecl *, 4> ConflictingDecls;
2355 SmallVector<NamedDecl *, 2> FoundDecls;
2356 DC->localUncachedLookup(SearchName, FoundDecls);
2357 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
2358 if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
2361 Decl *Found = FoundDecls[I];
2362 if (TypedefNameDecl *Typedef = dyn_cast<TypedefNameDecl>(Found)) {
2363 if (const TagType *Tag = Typedef->getUnderlyingType()->getAs<TagType>())
2364 Found = Tag->getDecl();
2367 if (EnumDecl *FoundEnum = dyn_cast<EnumDecl>(Found)) {
2368 if (IsStructuralMatch(D, FoundEnum))
2369 return Importer.Imported(D, FoundEnum);
2372 ConflictingDecls.push_back(FoundDecls[I]);
2375 if (!ConflictingDecls.empty()) {
2376 Name = Importer.HandleNameConflict(Name, DC, IDNS,
2377 ConflictingDecls.data(),
2378 ConflictingDecls.size());
2382 // Create the enum declaration.
2383 EnumDecl *D2 = EnumDecl::Create(Importer.getToContext(), DC,
2384 Importer.Import(D->getLocStart()),
2385 Loc, Name.getAsIdentifierInfo(), 0,
2386 D->isScoped(), D->isScopedUsingClassTag(),
2388 // Import the qualifier, if any.
2389 D2->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
2390 D2->setAccess(D->getAccess());
2391 D2->setLexicalDeclContext(LexicalDC);
2392 Importer.Imported(D, D2);
2393 LexicalDC->addDeclInternal(D2);
2395 // Import the integer type.
2396 QualType ToIntegerType = Importer.Import(D->getIntegerType());
2397 if (ToIntegerType.isNull())
2399 D2->setIntegerType(ToIntegerType);
2401 // Import the definition
2402 if (D->isCompleteDefinition() && ImportDefinition(D, D2))
2408 Decl *ASTNodeImporter::VisitRecordDecl(RecordDecl *D) {
2409 // If this record has a definition in the translation unit we're coming from,
2410 // but this particular declaration is not that definition, import the
2411 // definition and map to that.
2412 TagDecl *Definition = D->getDefinition();
2413 if (Definition && Definition != D) {
2414 Decl *ImportedDef = Importer.Import(Definition);
2418 return Importer.Imported(D, ImportedDef);
2421 // Import the major distinguishing characteristics of this record.
2422 DeclContext *DC, *LexicalDC;
2423 DeclarationName Name;
2425 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
2428 // Figure out what structure name we're looking for.
2429 unsigned IDNS = Decl::IDNS_Tag;
2430 DeclarationName SearchName = Name;
2431 if (!SearchName && D->getTypedefNameForAnonDecl()) {
2432 SearchName = Importer.Import(D->getTypedefNameForAnonDecl()->getDeclName());
2433 IDNS = Decl::IDNS_Ordinary;
2434 } else if (Importer.getToContext().getLangOpts().CPlusPlus)
2435 IDNS |= Decl::IDNS_Ordinary;
2437 // We may already have a record of the same name; try to find and match it.
2438 RecordDecl *AdoptDecl = 0;
2439 if (!DC->isFunctionOrMethod()) {
2440 SmallVector<NamedDecl *, 4> ConflictingDecls;
2441 SmallVector<NamedDecl *, 2> FoundDecls;
2442 DC->localUncachedLookup(SearchName, FoundDecls);
2443 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
2444 if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
2447 Decl *Found = FoundDecls[I];
2448 if (TypedefNameDecl *Typedef = dyn_cast<TypedefNameDecl>(Found)) {
2449 if (const TagType *Tag = Typedef->getUnderlyingType()->getAs<TagType>())
2450 Found = Tag->getDecl();
2453 if (RecordDecl *FoundRecord = dyn_cast<RecordDecl>(Found)) {
2454 if (D->isAnonymousStructOrUnion() &&
2455 FoundRecord->isAnonymousStructOrUnion()) {
2456 // If both anonymous structs/unions are in a record context, make sure
2457 // they occur in the same location in the context records.
2458 if (Optional<unsigned> Index1
2459 = findAnonymousStructOrUnionIndex(D)) {
2460 if (Optional<unsigned> Index2 =
2461 findAnonymousStructOrUnionIndex(FoundRecord)) {
2462 if (*Index1 != *Index2)
2468 if (RecordDecl *FoundDef = FoundRecord->getDefinition()) {
2469 if ((SearchName && !D->isCompleteDefinition())
2470 || (D->isCompleteDefinition() &&
2471 D->isAnonymousStructOrUnion()
2472 == FoundDef->isAnonymousStructOrUnion() &&
2473 IsStructuralMatch(D, FoundDef))) {
2474 // The record types structurally match, or the "from" translation
2475 // unit only had a forward declaration anyway; call it the same
2477 // FIXME: For C++, we should also merge methods here.
2478 return Importer.Imported(D, FoundDef);
2480 } else if (!D->isCompleteDefinition()) {
2481 // We have a forward declaration of this type, so adopt that forward
2482 // declaration rather than building a new one.
2483 AdoptDecl = FoundRecord;
2485 } else if (!SearchName) {
2490 ConflictingDecls.push_back(FoundDecls[I]);
2493 if (!ConflictingDecls.empty() && SearchName) {
2494 Name = Importer.HandleNameConflict(Name, DC, IDNS,
2495 ConflictingDecls.data(),
2496 ConflictingDecls.size());
2500 // Create the record declaration.
2501 RecordDecl *D2 = AdoptDecl;
2502 SourceLocation StartLoc = Importer.Import(D->getLocStart());
2504 if (isa<CXXRecordDecl>(D)) {
2505 CXXRecordDecl *D2CXX = CXXRecordDecl::Create(Importer.getToContext(),
2508 Name.getAsIdentifierInfo());
2510 D2->setAccess(D->getAccess());
2512 D2 = RecordDecl::Create(Importer.getToContext(), D->getTagKind(),
2513 DC, StartLoc, Loc, Name.getAsIdentifierInfo());
2516 D2->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
2517 D2->setLexicalDeclContext(LexicalDC);
2518 LexicalDC->addDeclInternal(D2);
2519 if (D->isAnonymousStructOrUnion())
2520 D2->setAnonymousStructOrUnion(true);
2523 Importer.Imported(D, D2);
2525 if (D->isCompleteDefinition() && ImportDefinition(D, D2, IDK_Default))
2531 Decl *ASTNodeImporter::VisitEnumConstantDecl(EnumConstantDecl *D) {
2532 // Import the major distinguishing characteristics of this enumerator.
2533 DeclContext *DC, *LexicalDC;
2534 DeclarationName Name;
2536 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
2539 QualType T = Importer.Import(D->getType());
2543 // Determine whether there are any other declarations with the same name and
2544 // in the same context.
2545 if (!LexicalDC->isFunctionOrMethod()) {
2546 SmallVector<NamedDecl *, 4> ConflictingDecls;
2547 unsigned IDNS = Decl::IDNS_Ordinary;
2548 SmallVector<NamedDecl *, 2> FoundDecls;
2549 DC->localUncachedLookup(Name, FoundDecls);
2550 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
2551 if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
2554 if (EnumConstantDecl *FoundEnumConstant
2555 = dyn_cast<EnumConstantDecl>(FoundDecls[I])) {
2556 if (IsStructuralMatch(D, FoundEnumConstant))
2557 return Importer.Imported(D, FoundEnumConstant);
2560 ConflictingDecls.push_back(FoundDecls[I]);
2563 if (!ConflictingDecls.empty()) {
2564 Name = Importer.HandleNameConflict(Name, DC, IDNS,
2565 ConflictingDecls.data(),
2566 ConflictingDecls.size());
2572 Expr *Init = Importer.Import(D->getInitExpr());
2573 if (D->getInitExpr() && !Init)
2576 EnumConstantDecl *ToEnumerator
2577 = EnumConstantDecl::Create(Importer.getToContext(), cast<EnumDecl>(DC), Loc,
2578 Name.getAsIdentifierInfo(), T,
2579 Init, D->getInitVal());
2580 ToEnumerator->setAccess(D->getAccess());
2581 ToEnumerator->setLexicalDeclContext(LexicalDC);
2582 Importer.Imported(D, ToEnumerator);
2583 LexicalDC->addDeclInternal(ToEnumerator);
2584 return ToEnumerator;
2587 Decl *ASTNodeImporter::VisitFunctionDecl(FunctionDecl *D) {
2588 // Import the major distinguishing characteristics of this function.
2589 DeclContext *DC, *LexicalDC;
2590 DeclarationName Name;
2592 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
2595 // Try to find a function in our own ("to") context with the same name, same
2596 // type, and in the same context as the function we're importing.
2597 if (!LexicalDC->isFunctionOrMethod()) {
2598 SmallVector<NamedDecl *, 4> ConflictingDecls;
2599 unsigned IDNS = Decl::IDNS_Ordinary;
2600 SmallVector<NamedDecl *, 2> FoundDecls;
2601 DC->localUncachedLookup(Name, FoundDecls);
2602 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
2603 if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
2606 if (FunctionDecl *FoundFunction = dyn_cast<FunctionDecl>(FoundDecls[I])) {
2607 if (isExternalLinkage(FoundFunction->getLinkage()) &&
2608 isExternalLinkage(D->getLinkage())) {
2609 if (Importer.IsStructurallyEquivalent(D->getType(),
2610 FoundFunction->getType())) {
2611 // FIXME: Actually try to merge the body and other attributes.
2612 return Importer.Imported(D, FoundFunction);
2615 // FIXME: Check for overloading more carefully, e.g., by boosting
2616 // Sema::IsOverload out to the AST library.
2618 // Function overloading is okay in C++.
2619 if (Importer.getToContext().getLangOpts().CPlusPlus)
2622 // Complain about inconsistent function types.
2623 Importer.ToDiag(Loc, diag::err_odr_function_type_inconsistent)
2624 << Name << D->getType() << FoundFunction->getType();
2625 Importer.ToDiag(FoundFunction->getLocation(),
2626 diag::note_odr_value_here)
2627 << FoundFunction->getType();
2631 ConflictingDecls.push_back(FoundDecls[I]);
2634 if (!ConflictingDecls.empty()) {
2635 Name = Importer.HandleNameConflict(Name, DC, IDNS,
2636 ConflictingDecls.data(),
2637 ConflictingDecls.size());
2643 DeclarationNameInfo NameInfo(Name, Loc);
2644 // Import additional name location/type info.
2645 ImportDeclarationNameLoc(D->getNameInfo(), NameInfo);
2647 QualType FromTy = D->getType();
2648 bool usedDifferentExceptionSpec = false;
2650 if (const FunctionProtoType *
2651 FromFPT = D->getType()->getAs<FunctionProtoType>()) {
2652 FunctionProtoType::ExtProtoInfo FromEPI = FromFPT->getExtProtoInfo();
2653 // FunctionProtoType::ExtProtoInfo's ExceptionSpecDecl can point to the
2654 // FunctionDecl that we are importing the FunctionProtoType for.
2655 // To avoid an infinite recursion when importing, create the FunctionDecl
2656 // with a simplified function type and update it afterwards.
2657 if (FromEPI.ExceptionSpecDecl || FromEPI.ExceptionSpecTemplate ||
2658 FromEPI.NoexceptExpr) {
2659 FunctionProtoType::ExtProtoInfo DefaultEPI;
2660 FromTy = Importer.getFromContext().getFunctionType(
2661 FromFPT->getResultType(),
2662 ArrayRef<QualType>(FromFPT->arg_type_begin(),
2663 FromFPT->getNumArgs()),
2665 usedDifferentExceptionSpec = true;
2670 QualType T = Importer.Import(FromTy);
2674 // Import the function parameters.
2675 SmallVector<ParmVarDecl *, 8> Parameters;
2676 for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end();
2678 ParmVarDecl *ToP = cast_or_null<ParmVarDecl>(Importer.Import(*P));
2682 Parameters.push_back(ToP);
2685 // Create the imported function.
2686 TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
2687 FunctionDecl *ToFunction = 0;
2688 if (CXXConstructorDecl *FromConstructor = dyn_cast<CXXConstructorDecl>(D)) {
2689 ToFunction = CXXConstructorDecl::Create(Importer.getToContext(),
2690 cast<CXXRecordDecl>(DC),
2691 D->getInnerLocStart(),
2693 FromConstructor->isExplicit(),
2694 D->isInlineSpecified(),
2697 } else if (isa<CXXDestructorDecl>(D)) {
2698 ToFunction = CXXDestructorDecl::Create(Importer.getToContext(),
2699 cast<CXXRecordDecl>(DC),
2700 D->getInnerLocStart(),
2702 D->isInlineSpecified(),
2704 } else if (CXXConversionDecl *FromConversion
2705 = dyn_cast<CXXConversionDecl>(D)) {
2706 ToFunction = CXXConversionDecl::Create(Importer.getToContext(),
2707 cast<CXXRecordDecl>(DC),
2708 D->getInnerLocStart(),
2710 D->isInlineSpecified(),
2711 FromConversion->isExplicit(),
2713 Importer.Import(D->getLocEnd()));
2714 } else if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(D)) {
2715 ToFunction = CXXMethodDecl::Create(Importer.getToContext(),
2716 cast<CXXRecordDecl>(DC),
2717 D->getInnerLocStart(),
2719 Method->getStorageClass(),
2720 Method->isInlineSpecified(),
2722 Importer.Import(D->getLocEnd()));
2724 ToFunction = FunctionDecl::Create(Importer.getToContext(), DC,
2725 D->getInnerLocStart(),
2726 NameInfo, T, TInfo, D->getStorageClass(),
2727 D->isInlineSpecified(),
2728 D->hasWrittenPrototype(),
2732 // Import the qualifier, if any.
2733 ToFunction->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
2734 ToFunction->setAccess(D->getAccess());
2735 ToFunction->setLexicalDeclContext(LexicalDC);
2736 ToFunction->setVirtualAsWritten(D->isVirtualAsWritten());
2737 ToFunction->setTrivial(D->isTrivial());
2738 ToFunction->setPure(D->isPure());
2739 Importer.Imported(D, ToFunction);
2741 // Set the parameters.
2742 for (unsigned I = 0, N = Parameters.size(); I != N; ++I) {
2743 Parameters[I]->setOwningFunction(ToFunction);
2744 ToFunction->addDeclInternal(Parameters[I]);
2746 ToFunction->setParams(Parameters);
2748 if (usedDifferentExceptionSpec) {
2749 // Update FunctionProtoType::ExtProtoInfo.
2750 QualType T = Importer.Import(D->getType());
2753 ToFunction->setType(T);
2756 // FIXME: Other bits to merge?
2758 // Add this function to the lexical context.
2759 LexicalDC->addDeclInternal(ToFunction);
2764 Decl *ASTNodeImporter::VisitCXXMethodDecl(CXXMethodDecl *D) {
2765 return VisitFunctionDecl(D);
2768 Decl *ASTNodeImporter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
2769 return VisitCXXMethodDecl(D);
2772 Decl *ASTNodeImporter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
2773 return VisitCXXMethodDecl(D);
2776 Decl *ASTNodeImporter::VisitCXXConversionDecl(CXXConversionDecl *D) {
2777 return VisitCXXMethodDecl(D);
2780 static unsigned getFieldIndex(Decl *F) {
2781 RecordDecl *Owner = dyn_cast<RecordDecl>(F->getDeclContext());
2786 for (DeclContext::decl_iterator D = Owner->noload_decls_begin(),
2787 DEnd = Owner->noload_decls_end();
2792 if (isa<FieldDecl>(*D) || isa<IndirectFieldDecl>(*D))
2799 Decl *ASTNodeImporter::VisitFieldDecl(FieldDecl *D) {
2800 // Import the major distinguishing characteristics of a variable.
2801 DeclContext *DC, *LexicalDC;
2802 DeclarationName Name;
2804 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
2807 // Determine whether we've already imported this field.
2808 SmallVector<NamedDecl *, 2> FoundDecls;
2809 DC->localUncachedLookup(Name, FoundDecls);
2810 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
2811 if (FieldDecl *FoundField = dyn_cast<FieldDecl>(FoundDecls[I])) {
2812 // For anonymous fields, match up by index.
2813 if (!Name && getFieldIndex(D) != getFieldIndex(FoundField))
2816 if (Importer.IsStructurallyEquivalent(D->getType(),
2817 FoundField->getType())) {
2818 Importer.Imported(D, FoundField);
2822 Importer.ToDiag(Loc, diag::err_odr_field_type_inconsistent)
2823 << Name << D->getType() << FoundField->getType();
2824 Importer.ToDiag(FoundField->getLocation(), diag::note_odr_value_here)
2825 << FoundField->getType();
2831 QualType T = Importer.Import(D->getType());
2835 TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
2836 Expr *BitWidth = Importer.Import(D->getBitWidth());
2837 if (!BitWidth && D->getBitWidth())
2840 FieldDecl *ToField = FieldDecl::Create(Importer.getToContext(), DC,
2841 Importer.Import(D->getInnerLocStart()),
2842 Loc, Name.getAsIdentifierInfo(),
2843 T, TInfo, BitWidth, D->isMutable(),
2844 D->getInClassInitStyle());
2845 ToField->setAccess(D->getAccess());
2846 ToField->setLexicalDeclContext(LexicalDC);
2847 if (ToField->hasInClassInitializer())
2848 ToField->setInClassInitializer(D->getInClassInitializer());
2849 ToField->setImplicit(D->isImplicit());
2850 Importer.Imported(D, ToField);
2851 LexicalDC->addDeclInternal(ToField);
2855 Decl *ASTNodeImporter::VisitIndirectFieldDecl(IndirectFieldDecl *D) {
2856 // Import the major distinguishing characteristics of a variable.
2857 DeclContext *DC, *LexicalDC;
2858 DeclarationName Name;
2860 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
2863 // Determine whether we've already imported this field.
2864 SmallVector<NamedDecl *, 2> FoundDecls;
2865 DC->localUncachedLookup(Name, FoundDecls);
2866 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
2867 if (IndirectFieldDecl *FoundField
2868 = dyn_cast<IndirectFieldDecl>(FoundDecls[I])) {
2869 // For anonymous indirect fields, match up by index.
2870 if (!Name && getFieldIndex(D) != getFieldIndex(FoundField))
2873 if (Importer.IsStructurallyEquivalent(D->getType(),
2874 FoundField->getType(),
2876 Importer.Imported(D, FoundField);
2880 // If there are more anonymous fields to check, continue.
2881 if (!Name && I < N-1)
2884 Importer.ToDiag(Loc, diag::err_odr_field_type_inconsistent)
2885 << Name << D->getType() << FoundField->getType();
2886 Importer.ToDiag(FoundField->getLocation(), diag::note_odr_value_here)
2887 << FoundField->getType();
2893 QualType T = Importer.Import(D->getType());
2897 NamedDecl **NamedChain =
2898 new (Importer.getToContext())NamedDecl*[D->getChainingSize()];
2901 for (IndirectFieldDecl::chain_iterator PI = D->chain_begin(),
2902 PE = D->chain_end(); PI != PE; ++PI) {
2903 Decl* D = Importer.Import(*PI);
2906 NamedChain[i++] = cast<NamedDecl>(D);
2909 IndirectFieldDecl *ToIndirectField = IndirectFieldDecl::Create(
2910 Importer.getToContext(), DC,
2911 Loc, Name.getAsIdentifierInfo(), T,
2912 NamedChain, D->getChainingSize());
2913 ToIndirectField->setAccess(D->getAccess());
2914 ToIndirectField->setLexicalDeclContext(LexicalDC);
2915 Importer.Imported(D, ToIndirectField);
2916 LexicalDC->addDeclInternal(ToIndirectField);
2917 return ToIndirectField;
2920 Decl *ASTNodeImporter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
2921 // Import the major distinguishing characteristics of an ivar.
2922 DeclContext *DC, *LexicalDC;
2923 DeclarationName Name;
2925 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
2928 // Determine whether we've already imported this ivar
2929 SmallVector<NamedDecl *, 2> FoundDecls;
2930 DC->localUncachedLookup(Name, FoundDecls);
2931 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
2932 if (ObjCIvarDecl *FoundIvar = dyn_cast<ObjCIvarDecl>(FoundDecls[I])) {
2933 if (Importer.IsStructurallyEquivalent(D->getType(),
2934 FoundIvar->getType())) {
2935 Importer.Imported(D, FoundIvar);
2939 Importer.ToDiag(Loc, diag::err_odr_ivar_type_inconsistent)
2940 << Name << D->getType() << FoundIvar->getType();
2941 Importer.ToDiag(FoundIvar->getLocation(), diag::note_odr_value_here)
2942 << FoundIvar->getType();
2948 QualType T = Importer.Import(D->getType());
2952 TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
2953 Expr *BitWidth = Importer.Import(D->getBitWidth());
2954 if (!BitWidth && D->getBitWidth())
2957 ObjCIvarDecl *ToIvar = ObjCIvarDecl::Create(Importer.getToContext(),
2958 cast<ObjCContainerDecl>(DC),
2959 Importer.Import(D->getInnerLocStart()),
2960 Loc, Name.getAsIdentifierInfo(),
2961 T, TInfo, D->getAccessControl(),
2962 BitWidth, D->getSynthesize());
2963 ToIvar->setLexicalDeclContext(LexicalDC);
2964 Importer.Imported(D, ToIvar);
2965 LexicalDC->addDeclInternal(ToIvar);
2970 Decl *ASTNodeImporter::VisitVarDecl(VarDecl *D) {
2971 // Import the major distinguishing characteristics of a variable.
2972 DeclContext *DC, *LexicalDC;
2973 DeclarationName Name;
2975 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
2978 // Try to find a variable in our own ("to") context with the same name and
2979 // in the same context as the variable we're importing.
2980 if (D->isFileVarDecl()) {
2981 VarDecl *MergeWithVar = 0;
2982 SmallVector<NamedDecl *, 4> ConflictingDecls;
2983 unsigned IDNS = Decl::IDNS_Ordinary;
2984 SmallVector<NamedDecl *, 2> FoundDecls;
2985 DC->localUncachedLookup(Name, FoundDecls);
2986 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
2987 if (!FoundDecls[I]->isInIdentifierNamespace(IDNS))
2990 if (VarDecl *FoundVar = dyn_cast<VarDecl>(FoundDecls[I])) {
2991 // We have found a variable that we may need to merge with. Check it.
2992 if (isExternalLinkage(FoundVar->getLinkage()) &&
2993 isExternalLinkage(D->getLinkage())) {
2994 if (Importer.IsStructurallyEquivalent(D->getType(),
2995 FoundVar->getType())) {
2996 MergeWithVar = FoundVar;
3000 const ArrayType *FoundArray
3001 = Importer.getToContext().getAsArrayType(FoundVar->getType());
3002 const ArrayType *TArray
3003 = Importer.getToContext().getAsArrayType(D->getType());
3004 if (FoundArray && TArray) {
3005 if (isa<IncompleteArrayType>(FoundArray) &&
3006 isa<ConstantArrayType>(TArray)) {
3008 QualType T = Importer.Import(D->getType());
3012 FoundVar->setType(T);
3013 MergeWithVar = FoundVar;
3015 } else if (isa<IncompleteArrayType>(TArray) &&
3016 isa<ConstantArrayType>(FoundArray)) {
3017 MergeWithVar = FoundVar;
3022 Importer.ToDiag(Loc, diag::err_odr_variable_type_inconsistent)
3023 << Name << D->getType() << FoundVar->getType();
3024 Importer.ToDiag(FoundVar->getLocation(), diag::note_odr_value_here)
3025 << FoundVar->getType();
3029 ConflictingDecls.push_back(FoundDecls[I]);
3033 // An equivalent variable with external linkage has been found. Link
3034 // the two declarations, then merge them.
3035 Importer.Imported(D, MergeWithVar);
3037 if (VarDecl *DDef = D->getDefinition()) {
3038 if (VarDecl *ExistingDef = MergeWithVar->getDefinition()) {
3039 Importer.ToDiag(ExistingDef->getLocation(),
3040 diag::err_odr_variable_multiple_def)
3042 Importer.FromDiag(DDef->getLocation(), diag::note_odr_defined_here);
3044 Expr *Init = Importer.Import(DDef->getInit());
3045 MergeWithVar->setInit(Init);
3046 if (DDef->isInitKnownICE()) {
3047 EvaluatedStmt *Eval = MergeWithVar->ensureEvaluatedStmt();
3048 Eval->CheckedICE = true;
3049 Eval->IsICE = DDef->isInitICE();
3054 return MergeWithVar;
3057 if (!ConflictingDecls.empty()) {
3058 Name = Importer.HandleNameConflict(Name, DC, IDNS,
3059 ConflictingDecls.data(),
3060 ConflictingDecls.size());
3067 QualType T = Importer.Import(D->getType());
3071 // Create the imported variable.
3072 TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
3073 VarDecl *ToVar = VarDecl::Create(Importer.getToContext(), DC,
3074 Importer.Import(D->getInnerLocStart()),
3075 Loc, Name.getAsIdentifierInfo(),
3077 D->getStorageClass());
3078 ToVar->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
3079 ToVar->setAccess(D->getAccess());
3080 ToVar->setLexicalDeclContext(LexicalDC);
3081 Importer.Imported(D, ToVar);
3082 LexicalDC->addDeclInternal(ToVar);
3084 // Merge the initializer.
3085 // FIXME: Can we really import any initializer? Alternatively, we could force
3086 // ourselves to import every declaration of a variable and then only use
3088 ToVar->setInit(Importer.Import(const_cast<Expr *>(D->getAnyInitializer())));
3090 // FIXME: Other bits to merge?
3095 Decl *ASTNodeImporter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
3096 // Parameters are created in the translation unit's context, then moved
3097 // into the function declaration's context afterward.
3098 DeclContext *DC = Importer.getToContext().getTranslationUnitDecl();
3100 // Import the name of this declaration.
3101 DeclarationName Name = Importer.Import(D->getDeclName());
3102 if (D->getDeclName() && !Name)
3105 // Import the location of this declaration.
3106 SourceLocation Loc = Importer.Import(D->getLocation());
3108 // Import the parameter's type.
3109 QualType T = Importer.Import(D->getType());
3113 // Create the imported parameter.
3114 ImplicitParamDecl *ToParm
3115 = ImplicitParamDecl::Create(Importer.getToContext(), DC,
3116 Loc, Name.getAsIdentifierInfo(),
3118 return Importer.Imported(D, ToParm);
3121 Decl *ASTNodeImporter::VisitParmVarDecl(ParmVarDecl *D) {
3122 // Parameters are created in the translation unit's context, then moved
3123 // into the function declaration's context afterward.
3124 DeclContext *DC = Importer.getToContext().getTranslationUnitDecl();
3126 // Import the name of this declaration.
3127 DeclarationName Name = Importer.Import(D->getDeclName());
3128 if (D->getDeclName() && !Name)
3131 // Import the location of this declaration.
3132 SourceLocation Loc = Importer.Import(D->getLocation());
3134 // Import the parameter's type.
3135 QualType T = Importer.Import(D->getType());
3139 // Create the imported parameter.
3140 TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
3141 ParmVarDecl *ToParm = ParmVarDecl::Create(Importer.getToContext(), DC,
3142 Importer.Import(D->getInnerLocStart()),
3143 Loc, Name.getAsIdentifierInfo(),
3144 T, TInfo, D->getStorageClass(),
3145 /*FIXME: Default argument*/ 0);
3146 ToParm->setHasInheritedDefaultArg(D->hasInheritedDefaultArg());
3147 return Importer.Imported(D, ToParm);
3150 Decl *ASTNodeImporter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
3151 // Import the major distinguishing characteristics of a method.
3152 DeclContext *DC, *LexicalDC;
3153 DeclarationName Name;
3155 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
3158 SmallVector<NamedDecl *, 2> FoundDecls;
3159 DC->localUncachedLookup(Name, FoundDecls);
3160 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
3161 if (ObjCMethodDecl *FoundMethod = dyn_cast<ObjCMethodDecl>(FoundDecls[I])) {
3162 if (FoundMethod->isInstanceMethod() != D->isInstanceMethod())
3165 // Check return types.
3166 if (!Importer.IsStructurallyEquivalent(D->getResultType(),
3167 FoundMethod->getResultType())) {
3168 Importer.ToDiag(Loc, diag::err_odr_objc_method_result_type_inconsistent)
3169 << D->isInstanceMethod() << Name
3170 << D->getResultType() << FoundMethod->getResultType();
3171 Importer.ToDiag(FoundMethod->getLocation(),
3172 diag::note_odr_objc_method_here)
3173 << D->isInstanceMethod() << Name;
3177 // Check the number of parameters.
3178 if (D->param_size() != FoundMethod->param_size()) {
3179 Importer.ToDiag(Loc, diag::err_odr_objc_method_num_params_inconsistent)
3180 << D->isInstanceMethod() << Name
3181 << D->param_size() << FoundMethod->param_size();
3182 Importer.ToDiag(FoundMethod->getLocation(),
3183 diag::note_odr_objc_method_here)
3184 << D->isInstanceMethod() << Name;
3188 // Check parameter types.
3189 for (ObjCMethodDecl::param_iterator P = D->param_begin(),
3190 PEnd = D->param_end(), FoundP = FoundMethod->param_begin();
3191 P != PEnd; ++P, ++FoundP) {
3192 if (!Importer.IsStructurallyEquivalent((*P)->getType(),
3193 (*FoundP)->getType())) {
3194 Importer.FromDiag((*P)->getLocation(),
3195 diag::err_odr_objc_method_param_type_inconsistent)
3196 << D->isInstanceMethod() << Name
3197 << (*P)->getType() << (*FoundP)->getType();
3198 Importer.ToDiag((*FoundP)->getLocation(), diag::note_odr_value_here)
3199 << (*FoundP)->getType();
3204 // Check variadic/non-variadic.
3205 // Check the number of parameters.
3206 if (D->isVariadic() != FoundMethod->isVariadic()) {
3207 Importer.ToDiag(Loc, diag::err_odr_objc_method_variadic_inconsistent)
3208 << D->isInstanceMethod() << Name;
3209 Importer.ToDiag(FoundMethod->getLocation(),
3210 diag::note_odr_objc_method_here)
3211 << D->isInstanceMethod() << Name;
3215 // FIXME: Any other bits we need to merge?
3216 return Importer.Imported(D, FoundMethod);
3220 // Import the result type.
3221 QualType ResultTy = Importer.Import(D->getResultType());
3222 if (ResultTy.isNull())
3225 TypeSourceInfo *ResultTInfo = Importer.Import(D->getResultTypeSourceInfo());
3227 ObjCMethodDecl *ToMethod
3228 = ObjCMethodDecl::Create(Importer.getToContext(),
3230 Importer.Import(D->getLocEnd()),
3231 Name.getObjCSelector(),
3232 ResultTy, ResultTInfo, DC,
3233 D->isInstanceMethod(),
3235 D->isPropertyAccessor(),
3238 D->getImplementationControl(),
3239 D->hasRelatedResultType());
3241 // FIXME: When we decide to merge method definitions, we'll need to
3242 // deal with implicit parameters.
3244 // Import the parameters
3245 SmallVector<ParmVarDecl *, 5> ToParams;
3246 for (ObjCMethodDecl::param_iterator FromP = D->param_begin(),
3247 FromPEnd = D->param_end();
3250 ParmVarDecl *ToP = cast_or_null<ParmVarDecl>(Importer.Import(*FromP));
3254 ToParams.push_back(ToP);
3257 // Set the parameters.
3258 for (unsigned I = 0, N = ToParams.size(); I != N; ++I) {
3259 ToParams[I]->setOwningFunction(ToMethod);
3260 ToMethod->addDeclInternal(ToParams[I]);
3262 SmallVector<SourceLocation, 12> SelLocs;
3263 D->getSelectorLocs(SelLocs);
3264 ToMethod->setMethodParams(Importer.getToContext(), ToParams, SelLocs);
3266 ToMethod->setLexicalDeclContext(LexicalDC);
3267 Importer.Imported(D, ToMethod);
3268 LexicalDC->addDeclInternal(ToMethod);
3272 Decl *ASTNodeImporter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
3273 // Import the major distinguishing characteristics of a category.
3274 DeclContext *DC, *LexicalDC;
3275 DeclarationName Name;
3277 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
3280 ObjCInterfaceDecl *ToInterface
3281 = cast_or_null<ObjCInterfaceDecl>(Importer.Import(D->getClassInterface()));
3285 // Determine if we've already encountered this category.
3286 ObjCCategoryDecl *MergeWithCategory
3287 = ToInterface->FindCategoryDeclaration(Name.getAsIdentifierInfo());
3288 ObjCCategoryDecl *ToCategory = MergeWithCategory;
3290 ToCategory = ObjCCategoryDecl::Create(Importer.getToContext(), DC,
3291 Importer.Import(D->getAtStartLoc()),
3293 Importer.Import(D->getCategoryNameLoc()),
3294 Name.getAsIdentifierInfo(),
3296 Importer.Import(D->getIvarLBraceLoc()),
3297 Importer.Import(D->getIvarRBraceLoc()));
3298 ToCategory->setLexicalDeclContext(LexicalDC);
3299 LexicalDC->addDeclInternal(ToCategory);
3300 Importer.Imported(D, ToCategory);
3303 SmallVector<ObjCProtocolDecl *, 4> Protocols;
3304 SmallVector<SourceLocation, 4> ProtocolLocs;
3305 ObjCCategoryDecl::protocol_loc_iterator FromProtoLoc
3306 = D->protocol_loc_begin();
3307 for (ObjCCategoryDecl::protocol_iterator FromProto = D->protocol_begin(),
3308 FromProtoEnd = D->protocol_end();
3309 FromProto != FromProtoEnd;
3310 ++FromProto, ++FromProtoLoc) {
3311 ObjCProtocolDecl *ToProto
3312 = cast_or_null<ObjCProtocolDecl>(Importer.Import(*FromProto));
3315 Protocols.push_back(ToProto);
3316 ProtocolLocs.push_back(Importer.Import(*FromProtoLoc));
3319 // FIXME: If we're merging, make sure that the protocol list is the same.
3320 ToCategory->setProtocolList(Protocols.data(), Protocols.size(),
3321 ProtocolLocs.data(), Importer.getToContext());
3324 Importer.Imported(D, ToCategory);
3327 // Import all of the members of this category.
3328 ImportDeclContext(D);
3330 // If we have an implementation, import it as well.
3331 if (D->getImplementation()) {
3332 ObjCCategoryImplDecl *Impl
3333 = cast_or_null<ObjCCategoryImplDecl>(
3334 Importer.Import(D->getImplementation()));
3338 ToCategory->setImplementation(Impl);
3344 bool ASTNodeImporter::ImportDefinition(ObjCProtocolDecl *From,
3345 ObjCProtocolDecl *To,
3346 ImportDefinitionKind Kind) {
3347 if (To->getDefinition()) {
3348 if (shouldForceImportDeclContext(Kind))
3349 ImportDeclContext(From);
3353 // Start the protocol definition
3354 To->startDefinition();
3357 SmallVector<ObjCProtocolDecl *, 4> Protocols;
3358 SmallVector<SourceLocation, 4> ProtocolLocs;
3359 ObjCProtocolDecl::protocol_loc_iterator
3360 FromProtoLoc = From->protocol_loc_begin();
3361 for (ObjCProtocolDecl::protocol_iterator FromProto = From->protocol_begin(),
3362 FromProtoEnd = From->protocol_end();
3363 FromProto != FromProtoEnd;
3364 ++FromProto, ++FromProtoLoc) {
3365 ObjCProtocolDecl *ToProto
3366 = cast_or_null<ObjCProtocolDecl>(Importer.Import(*FromProto));
3369 Protocols.push_back(ToProto);
3370 ProtocolLocs.push_back(Importer.Import(*FromProtoLoc));
3373 // FIXME: If we're merging, make sure that the protocol list is the same.
3374 To->setProtocolList(Protocols.data(), Protocols.size(),
3375 ProtocolLocs.data(), Importer.getToContext());
3377 if (shouldForceImportDeclContext(Kind)) {
3378 // Import all of the members of this protocol.
3379 ImportDeclContext(From, /*ForceImport=*/true);
3384 Decl *ASTNodeImporter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
3385 // If this protocol has a definition in the translation unit we're coming
3386 // from, but this particular declaration is not that definition, import the
3387 // definition and map to that.
3388 ObjCProtocolDecl *Definition = D->getDefinition();
3389 if (Definition && Definition != D) {
3390 Decl *ImportedDef = Importer.Import(Definition);
3394 return Importer.Imported(D, ImportedDef);
3397 // Import the major distinguishing characteristics of a protocol.
3398 DeclContext *DC, *LexicalDC;
3399 DeclarationName Name;
3401 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
3404 ObjCProtocolDecl *MergeWithProtocol = 0;
3405 SmallVector<NamedDecl *, 2> FoundDecls;
3406 DC->localUncachedLookup(Name, FoundDecls);
3407 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
3408 if (!FoundDecls[I]->isInIdentifierNamespace(Decl::IDNS_ObjCProtocol))
3411 if ((MergeWithProtocol = dyn_cast<ObjCProtocolDecl>(FoundDecls[I])))
3415 ObjCProtocolDecl *ToProto = MergeWithProtocol;
3417 ToProto = ObjCProtocolDecl::Create(Importer.getToContext(), DC,
3418 Name.getAsIdentifierInfo(), Loc,
3419 Importer.Import(D->getAtStartLoc()),
3421 ToProto->setLexicalDeclContext(LexicalDC);
3422 LexicalDC->addDeclInternal(ToProto);
3425 Importer.Imported(D, ToProto);
3427 if (D->isThisDeclarationADefinition() && ImportDefinition(D, ToProto))
3433 bool ASTNodeImporter::ImportDefinition(ObjCInterfaceDecl *From,
3434 ObjCInterfaceDecl *To,
3435 ImportDefinitionKind Kind) {
3436 if (To->getDefinition()) {
3437 // Check consistency of superclass.
3438 ObjCInterfaceDecl *FromSuper = From->getSuperClass();
3440 FromSuper = cast_or_null<ObjCInterfaceDecl>(Importer.Import(FromSuper));
3445 ObjCInterfaceDecl *ToSuper = To->getSuperClass();
3446 if ((bool)FromSuper != (bool)ToSuper ||
3447 (FromSuper && !declaresSameEntity(FromSuper, ToSuper))) {
3448 Importer.ToDiag(To->getLocation(),
3449 diag::err_odr_objc_superclass_inconsistent)
3450 << To->getDeclName();
3452 Importer.ToDiag(To->getSuperClassLoc(), diag::note_odr_objc_superclass)
3453 << To->getSuperClass()->getDeclName();
3455 Importer.ToDiag(To->getLocation(),
3456 diag::note_odr_objc_missing_superclass);
3457 if (From->getSuperClass())
3458 Importer.FromDiag(From->getSuperClassLoc(),
3459 diag::note_odr_objc_superclass)
3460 << From->getSuperClass()->getDeclName();
3462 Importer.FromDiag(From->getLocation(),
3463 diag::note_odr_objc_missing_superclass);
3466 if (shouldForceImportDeclContext(Kind))
3467 ImportDeclContext(From);
3471 // Start the definition.
3472 To->startDefinition();
3474 // If this class has a superclass, import it.
3475 if (From->getSuperClass()) {
3476 ObjCInterfaceDecl *Super = cast_or_null<ObjCInterfaceDecl>(
3477 Importer.Import(From->getSuperClass()));
3481 To->setSuperClass(Super);
3482 To->setSuperClassLoc(Importer.Import(From->getSuperClassLoc()));
3486 SmallVector<ObjCProtocolDecl *, 4> Protocols;
3487 SmallVector<SourceLocation, 4> ProtocolLocs;
3488 ObjCInterfaceDecl::protocol_loc_iterator
3489 FromProtoLoc = From->protocol_loc_begin();
3491 for (ObjCInterfaceDecl::protocol_iterator FromProto = From->protocol_begin(),
3492 FromProtoEnd = From->protocol_end();
3493 FromProto != FromProtoEnd;
3494 ++FromProto, ++FromProtoLoc) {
3495 ObjCProtocolDecl *ToProto
3496 = cast_or_null<ObjCProtocolDecl>(Importer.Import(*FromProto));
3499 Protocols.push_back(ToProto);
3500 ProtocolLocs.push_back(Importer.Import(*FromProtoLoc));
3503 // FIXME: If we're merging, make sure that the protocol list is the same.
3504 To->setProtocolList(Protocols.data(), Protocols.size(),
3505 ProtocolLocs.data(), Importer.getToContext());
3507 // Import categories. When the categories themselves are imported, they'll
3508 // hook themselves into this interface.
3509 for (ObjCInterfaceDecl::known_categories_iterator
3510 Cat = From->known_categories_begin(),
3511 CatEnd = From->known_categories_end();
3512 Cat != CatEnd; ++Cat) {
3513 Importer.Import(*Cat);
3516 // If we have an @implementation, import it as well.
3517 if (From->getImplementation()) {
3518 ObjCImplementationDecl *Impl = cast_or_null<ObjCImplementationDecl>(
3519 Importer.Import(From->getImplementation()));
3523 To->setImplementation(Impl);
3526 if (shouldForceImportDeclContext(Kind)) {
3527 // Import all of the members of this class.
3528 ImportDeclContext(From, /*ForceImport=*/true);
3533 Decl *ASTNodeImporter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
3534 // If this class has a definition in the translation unit we're coming from,
3535 // but this particular declaration is not that definition, import the
3536 // definition and map to that.
3537 ObjCInterfaceDecl *Definition = D->getDefinition();
3538 if (Definition && Definition != D) {
3539 Decl *ImportedDef = Importer.Import(Definition);
3543 return Importer.Imported(D, ImportedDef);
3546 // Import the major distinguishing characteristics of an @interface.
3547 DeclContext *DC, *LexicalDC;
3548 DeclarationName Name;
3550 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
3553 // Look for an existing interface with the same name.
3554 ObjCInterfaceDecl *MergeWithIface = 0;
3555 SmallVector<NamedDecl *, 2> FoundDecls;
3556 DC->localUncachedLookup(Name, FoundDecls);
3557 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
3558 if (!FoundDecls[I]->isInIdentifierNamespace(Decl::IDNS_Ordinary))
3561 if ((MergeWithIface = dyn_cast<ObjCInterfaceDecl>(FoundDecls[I])))
3565 // Create an interface declaration, if one does not already exist.
3566 ObjCInterfaceDecl *ToIface = MergeWithIface;
3568 ToIface = ObjCInterfaceDecl::Create(Importer.getToContext(), DC,
3569 Importer.Import(D->getAtStartLoc()),
3570 Name.getAsIdentifierInfo(),
3572 D->isImplicitInterfaceDecl());
3573 ToIface->setLexicalDeclContext(LexicalDC);
3574 LexicalDC->addDeclInternal(ToIface);
3576 Importer.Imported(D, ToIface);
3578 if (D->isThisDeclarationADefinition() && ImportDefinition(D, ToIface))
3584 Decl *ASTNodeImporter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
3585 ObjCCategoryDecl *Category = cast_or_null<ObjCCategoryDecl>(
3586 Importer.Import(D->getCategoryDecl()));
3590 ObjCCategoryImplDecl *ToImpl = Category->getImplementation();
3592 DeclContext *DC = Importer.ImportContext(D->getDeclContext());
3596 SourceLocation CategoryNameLoc = Importer.Import(D->getCategoryNameLoc());
3597 ToImpl = ObjCCategoryImplDecl::Create(Importer.getToContext(), DC,
3598 Importer.Import(D->getIdentifier()),
3599 Category->getClassInterface(),
3600 Importer.Import(D->getLocation()),
3601 Importer.Import(D->getAtStartLoc()),
3604 DeclContext *LexicalDC = DC;
3605 if (D->getDeclContext() != D->getLexicalDeclContext()) {
3606 LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
3610 ToImpl->setLexicalDeclContext(LexicalDC);
3613 LexicalDC->addDeclInternal(ToImpl);
3614 Category->setImplementation(ToImpl);
3617 Importer.Imported(D, ToImpl);
3618 ImportDeclContext(D);
3622 Decl *ASTNodeImporter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
3623 // Find the corresponding interface.
3624 ObjCInterfaceDecl *Iface = cast_or_null<ObjCInterfaceDecl>(
3625 Importer.Import(D->getClassInterface()));
3629 // Import the superclass, if any.
3630 ObjCInterfaceDecl *Super = 0;
3631 if (D->getSuperClass()) {
3632 Super = cast_or_null<ObjCInterfaceDecl>(
3633 Importer.Import(D->getSuperClass()));
3638 ObjCImplementationDecl *Impl = Iface->getImplementation();
3640 // We haven't imported an implementation yet. Create a new @implementation
3642 Impl = ObjCImplementationDecl::Create(Importer.getToContext(),
3643 Importer.ImportContext(D->getDeclContext()),
3645 Importer.Import(D->getLocation()),
3646 Importer.Import(D->getAtStartLoc()),
3647 Importer.Import(D->getIvarLBraceLoc()),
3648 Importer.Import(D->getIvarRBraceLoc()));
3650 if (D->getDeclContext() != D->getLexicalDeclContext()) {
3651 DeclContext *LexicalDC
3652 = Importer.ImportContext(D->getLexicalDeclContext());
3655 Impl->setLexicalDeclContext(LexicalDC);
3658 // Associate the implementation with the class it implements.
3659 Iface->setImplementation(Impl);
3660 Importer.Imported(D, Iface->getImplementation());
3662 Importer.Imported(D, Iface->getImplementation());
3664 // Verify that the existing @implementation has the same superclass.
3665 if ((Super && !Impl->getSuperClass()) ||
3666 (!Super && Impl->getSuperClass()) ||
3667 (Super && Impl->getSuperClass() &&
3668 !declaresSameEntity(Super->getCanonicalDecl(), Impl->getSuperClass()))) {
3669 Importer.ToDiag(Impl->getLocation(),
3670 diag::err_odr_objc_superclass_inconsistent)
3671 << Iface->getDeclName();
3672 // FIXME: It would be nice to have the location of the superclass
3674 if (Impl->getSuperClass())
3675 Importer.ToDiag(Impl->getLocation(),
3676 diag::note_odr_objc_superclass)
3677 << Impl->getSuperClass()->getDeclName();
3679 Importer.ToDiag(Impl->getLocation(),
3680 diag::note_odr_objc_missing_superclass);
3681 if (D->getSuperClass())
3682 Importer.FromDiag(D->getLocation(),
3683 diag::note_odr_objc_superclass)
3684 << D->getSuperClass()->getDeclName();
3686 Importer.FromDiag(D->getLocation(),
3687 diag::note_odr_objc_missing_superclass);
3692 // Import all of the members of this @implementation.
3693 ImportDeclContext(D);
3698 Decl *ASTNodeImporter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
3699 // Import the major distinguishing characteristics of an @property.
3700 DeclContext *DC, *LexicalDC;
3701 DeclarationName Name;
3703 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
3706 // Check whether we have already imported this property.
3707 SmallVector<NamedDecl *, 2> FoundDecls;
3708 DC->localUncachedLookup(Name, FoundDecls);
3709 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
3710 if (ObjCPropertyDecl *FoundProp
3711 = dyn_cast<ObjCPropertyDecl>(FoundDecls[I])) {
3712 // Check property types.
3713 if (!Importer.IsStructurallyEquivalent(D->getType(),
3714 FoundProp->getType())) {
3715 Importer.ToDiag(Loc, diag::err_odr_objc_property_type_inconsistent)
3716 << Name << D->getType() << FoundProp->getType();
3717 Importer.ToDiag(FoundProp->getLocation(), diag::note_odr_value_here)
3718 << FoundProp->getType();
3722 // FIXME: Check property attributes, getters, setters, etc.?
3724 // Consider these properties to be equivalent.
3725 Importer.Imported(D, FoundProp);
3731 TypeSourceInfo *T = Importer.Import(D->getTypeSourceInfo());
3735 // Create the new property.
3736 ObjCPropertyDecl *ToProperty
3737 = ObjCPropertyDecl::Create(Importer.getToContext(), DC, Loc,
3738 Name.getAsIdentifierInfo(),
3739 Importer.Import(D->getAtLoc()),
3740 Importer.Import(D->getLParenLoc()),
3742 D->getPropertyImplementation());
3743 Importer.Imported(D, ToProperty);
3744 ToProperty->setLexicalDeclContext(LexicalDC);
3745 LexicalDC->addDeclInternal(ToProperty);
3747 ToProperty->setPropertyAttributes(D->getPropertyAttributes());
3748 ToProperty->setPropertyAttributesAsWritten(
3749 D->getPropertyAttributesAsWritten());
3750 ToProperty->setGetterName(Importer.Import(D->getGetterName()));
3751 ToProperty->setSetterName(Importer.Import(D->getSetterName()));
3752 ToProperty->setGetterMethodDecl(
3753 cast_or_null<ObjCMethodDecl>(Importer.Import(D->getGetterMethodDecl())));
3754 ToProperty->setSetterMethodDecl(
3755 cast_or_null<ObjCMethodDecl>(Importer.Import(D->getSetterMethodDecl())));
3756 ToProperty->setPropertyIvarDecl(
3757 cast_or_null<ObjCIvarDecl>(Importer.Import(D->getPropertyIvarDecl())));
3761 Decl *ASTNodeImporter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
3762 ObjCPropertyDecl *Property = cast_or_null<ObjCPropertyDecl>(
3763 Importer.Import(D->getPropertyDecl()));
3767 DeclContext *DC = Importer.ImportContext(D->getDeclContext());
3771 // Import the lexical declaration context.
3772 DeclContext *LexicalDC = DC;
3773 if (D->getDeclContext() != D->getLexicalDeclContext()) {
3774 LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
3779 ObjCImplDecl *InImpl = dyn_cast<ObjCImplDecl>(LexicalDC);
3783 // Import the ivar (for an @synthesize).
3784 ObjCIvarDecl *Ivar = 0;
3785 if (D->getPropertyIvarDecl()) {
3786 Ivar = cast_or_null<ObjCIvarDecl>(
3787 Importer.Import(D->getPropertyIvarDecl()));
3792 ObjCPropertyImplDecl *ToImpl
3793 = InImpl->FindPropertyImplDecl(Property->getIdentifier());
3795 ToImpl = ObjCPropertyImplDecl::Create(Importer.getToContext(), DC,
3796 Importer.Import(D->getLocStart()),
3797 Importer.Import(D->getLocation()),
3799 D->getPropertyImplementation(),
3801 Importer.Import(D->getPropertyIvarDeclLoc()));
3802 ToImpl->setLexicalDeclContext(LexicalDC);
3803 Importer.Imported(D, ToImpl);
3804 LexicalDC->addDeclInternal(ToImpl);
3806 // Check that we have the same kind of property implementation (@synthesize
3808 if (D->getPropertyImplementation() != ToImpl->getPropertyImplementation()) {
3809 Importer.ToDiag(ToImpl->getLocation(),
3810 diag::err_odr_objc_property_impl_kind_inconsistent)
3811 << Property->getDeclName()
3812 << (ToImpl->getPropertyImplementation()
3813 == ObjCPropertyImplDecl::Dynamic);
3814 Importer.FromDiag(D->getLocation(),
3815 diag::note_odr_objc_property_impl_kind)
3816 << D->getPropertyDecl()->getDeclName()
3817 << (D->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic);
3821 // For @synthesize, check that we have the same
3822 if (D->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize &&
3823 Ivar != ToImpl->getPropertyIvarDecl()) {
3824 Importer.ToDiag(ToImpl->getPropertyIvarDeclLoc(),
3825 diag::err_odr_objc_synthesize_ivar_inconsistent)
3826 << Property->getDeclName()
3827 << ToImpl->getPropertyIvarDecl()->getDeclName()
3828 << Ivar->getDeclName();
3829 Importer.FromDiag(D->getPropertyIvarDeclLoc(),
3830 diag::note_odr_objc_synthesize_ivar_here)
3831 << D->getPropertyIvarDecl()->getDeclName();
3835 // Merge the existing implementation with the new implementation.
3836 Importer.Imported(D, ToImpl);
3842 Decl *ASTNodeImporter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
3843 // For template arguments, we adopt the translation unit as our declaration
3844 // context. This context will be fixed when the actual template declaration
3847 // FIXME: Import default argument.
3848 return TemplateTypeParmDecl::Create(Importer.getToContext(),
3849 Importer.getToContext().getTranslationUnitDecl(),
3850 Importer.Import(D->getLocStart()),
3851 Importer.Import(D->getLocation()),
3854 Importer.Import(D->getIdentifier()),
3855 D->wasDeclaredWithTypename(),
3856 D->isParameterPack());
3860 ASTNodeImporter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
3861 // Import the name of this declaration.
3862 DeclarationName Name = Importer.Import(D->getDeclName());
3863 if (D->getDeclName() && !Name)
3866 // Import the location of this declaration.
3867 SourceLocation Loc = Importer.Import(D->getLocation());
3869 // Import the type of this declaration.
3870 QualType T = Importer.Import(D->getType());
3874 // Import type-source information.
3875 TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
3876 if (D->getTypeSourceInfo() && !TInfo)
3879 // FIXME: Import default argument.
3881 return NonTypeTemplateParmDecl::Create(Importer.getToContext(),
3882 Importer.getToContext().getTranslationUnitDecl(),
3883 Importer.Import(D->getInnerLocStart()),
3884 Loc, D->getDepth(), D->getPosition(),
3885 Name.getAsIdentifierInfo(),
3886 T, D->isParameterPack(), TInfo);
3890 ASTNodeImporter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
3891 // Import the name of this declaration.
3892 DeclarationName Name = Importer.Import(D->getDeclName());
3893 if (D->getDeclName() && !Name)
3896 // Import the location of this declaration.
3897 SourceLocation Loc = Importer.Import(D->getLocation());
3899 // Import template parameters.
3900 TemplateParameterList *TemplateParams
3901 = ImportTemplateParameterList(D->getTemplateParameters());
3902 if (!TemplateParams)
3905 // FIXME: Import default argument.
3907 return TemplateTemplateParmDecl::Create(Importer.getToContext(),
3908 Importer.getToContext().getTranslationUnitDecl(),
3909 Loc, D->getDepth(), D->getPosition(),
3910 D->isParameterPack(),
3911 Name.getAsIdentifierInfo(),
3915 Decl *ASTNodeImporter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
3916 // If this record has a definition in the translation unit we're coming from,
3917 // but this particular declaration is not that definition, import the
3918 // definition and map to that.
3919 CXXRecordDecl *Definition
3920 = cast_or_null<CXXRecordDecl>(D->getTemplatedDecl()->getDefinition());
3921 if (Definition && Definition != D->getTemplatedDecl()) {
3923 = Importer.Import(Definition->getDescribedClassTemplate());
3927 return Importer.Imported(D, ImportedDef);
3930 // Import the major distinguishing characteristics of this class template.
3931 DeclContext *DC, *LexicalDC;
3932 DeclarationName Name;
3934 if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
3937 // We may already have a template of the same name; try to find and match it.
3938 if (!DC->isFunctionOrMethod()) {
3939 SmallVector<NamedDecl *, 4> ConflictingDecls;
3940 SmallVector<NamedDecl *, 2> FoundDecls;
3941 DC->localUncachedLookup(Name, FoundDecls);
3942 for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) {
3943 if (!FoundDecls[I]->isInIdentifierNamespace(Decl::IDNS_Ordinary))
3946 Decl *Found = FoundDecls[I];
3947 if (ClassTemplateDecl *FoundTemplate
3948 = dyn_cast<ClassTemplateDecl>(Found)) {
3949 if (IsStructuralMatch(D, FoundTemplate)) {
3950 // The class templates structurally match; call it the same template.
3951 // FIXME: We may be filling in a forward declaration here. Handle
3953 Importer.Imported(D->getTemplatedDecl(),
3954 FoundTemplate->getTemplatedDecl());
3955 return Importer.Imported(D, FoundTemplate);
3959 ConflictingDecls.push_back(FoundDecls[I]);
3962 if (!ConflictingDecls.empty()) {
3963 Name = Importer.HandleNameConflict(Name, DC, Decl::IDNS_Ordinary,
3964 ConflictingDecls.data(),
3965 ConflictingDecls.size());
3972 CXXRecordDecl *DTemplated = D->getTemplatedDecl();
3974 // Create the declaration that is being templated.
3975 SourceLocation StartLoc = Importer.Import(DTemplated->getLocStart());
3976 SourceLocation IdLoc = Importer.Import(DTemplated->getLocation());
3977 CXXRecordDecl *D2Templated = CXXRecordDecl::Create(Importer.getToContext(),
3978 DTemplated->getTagKind(),
3979 DC, StartLoc, IdLoc,
3980 Name.getAsIdentifierInfo());
3981 D2Templated->setAccess(DTemplated->getAccess());
3982 D2Templated->setQualifierInfo(Importer.Import(DTemplated->getQualifierLoc()));
3983 D2Templated->setLexicalDeclContext(LexicalDC);
3985 // Create the class template declaration itself.
3986 TemplateParameterList *TemplateParams
3987 = ImportTemplateParameterList(D->getTemplateParameters());
3988 if (!TemplateParams)
3991 ClassTemplateDecl *D2 = ClassTemplateDecl::Create(Importer.getToContext(), DC,
3992 Loc, Name, TemplateParams,
3995 D2Templated->setDescribedClassTemplate(D2);
3997 D2->setAccess(D->getAccess());
3998 D2->setLexicalDeclContext(LexicalDC);
3999 LexicalDC->addDeclInternal(D2);
4001 // Note the relationship between the class templates.
4002 Importer.Imported(D, D2);
4003 Importer.Imported(DTemplated, D2Templated);
4005 if (DTemplated->isCompleteDefinition() &&
4006 !D2Templated->isCompleteDefinition()) {
4007 // FIXME: Import definition!
4013 Decl *ASTNodeImporter::VisitClassTemplateSpecializationDecl(
4014 ClassTemplateSpecializationDecl *D) {
4015 // If this record has a definition in the translation unit we're coming from,
4016 // but this particular declaration is not that definition, import the
4017 // definition and map to that.
4018 TagDecl *Definition = D->getDefinition();
4019 if (Definition && Definition != D) {
4020 Decl *ImportedDef = Importer.Import(Definition);
4024 return Importer.Imported(D, ImportedDef);
4027 ClassTemplateDecl *ClassTemplate
4028 = cast_or_null<ClassTemplateDecl>(Importer.Import(
4029 D->getSpecializedTemplate()));
4033 // Import the context of this declaration.
4034 DeclContext *DC = ClassTemplate->getDeclContext();
4038 DeclContext *LexicalDC = DC;
4039 if (D->getDeclContext() != D->getLexicalDeclContext()) {
4040 LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
4045 // Import the location of this declaration.
4046 SourceLocation StartLoc = Importer.Import(D->getLocStart());
4047 SourceLocation IdLoc = Importer.Import(D->getLocation());
4049 // Import template arguments.
4050 SmallVector<TemplateArgument, 2> TemplateArgs;
4051 if (ImportTemplateArguments(D->getTemplateArgs().data(),
4052 D->getTemplateArgs().size(),
4056 // Try to find an existing specialization with these template arguments.
4057 void *InsertPos = 0;
4058 ClassTemplateSpecializationDecl *D2
4059 = ClassTemplate->findSpecialization(TemplateArgs.data(),
4060 TemplateArgs.size(), InsertPos);
4062 // We already have a class template specialization with these template
4065 // FIXME: Check for specialization vs. instantiation errors.
4067 if (RecordDecl *FoundDef = D2->getDefinition()) {
4068 if (!D->isCompleteDefinition() || IsStructuralMatch(D, FoundDef)) {
4069 // The record types structurally match, or the "from" translation
4070 // unit only had a forward declaration anyway; call it the same
4072 return Importer.Imported(D, FoundDef);
4076 // Create a new specialization.
4077 D2 = ClassTemplateSpecializationDecl::Create(Importer.getToContext(),
4078 D->getTagKind(), DC,
4081 TemplateArgs.data(),
4082 TemplateArgs.size(),
4084 D2->setSpecializationKind(D->getSpecializationKind());
4086 // Add this specialization to the class template.
4087 ClassTemplate->AddSpecialization(D2, InsertPos);
4089 // Import the qualifier, if any.
4090 D2->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
4092 // Add the specialization to this context.
4093 D2->setLexicalDeclContext(LexicalDC);
4094 LexicalDC->addDeclInternal(D2);
4096 Importer.Imported(D, D2);
4098 if (D->isCompleteDefinition() && ImportDefinition(D, D2))
4104 //----------------------------------------------------------------------------
4105 // Import Statements
4106 //----------------------------------------------------------------------------
4108 Stmt *ASTNodeImporter::VisitStmt(Stmt *S) {
4109 Importer.FromDiag(S->getLocStart(), diag::err_unsupported_ast_node)
4110 << S->getStmtClassName();
4114 //----------------------------------------------------------------------------
4115 // Import Expressions
4116 //----------------------------------------------------------------------------
4117 Expr *ASTNodeImporter::VisitExpr(Expr *E) {
4118 Importer.FromDiag(E->getLocStart(), diag::err_unsupported_ast_node)
4119 << E->getStmtClassName();
4123 Expr *ASTNodeImporter::VisitDeclRefExpr(DeclRefExpr *E) {
4124 ValueDecl *ToD = cast_or_null<ValueDecl>(Importer.Import(E->getDecl()));
4128 NamedDecl *FoundD = 0;
4129 if (E->getDecl() != E->getFoundDecl()) {
4130 FoundD = cast_or_null<NamedDecl>(Importer.Import(E->getFoundDecl()));
4135 QualType T = Importer.Import(E->getType());
4139 DeclRefExpr *DRE = DeclRefExpr::Create(Importer.getToContext(),
4140 Importer.Import(E->getQualifierLoc()),
4141 Importer.Import(E->getTemplateKeywordLoc()),
4143 E->refersToEnclosingLocal(),
4144 Importer.Import(E->getLocation()),
4145 T, E->getValueKind(),
4147 /*FIXME:TemplateArgs=*/0);
4148 if (E->hadMultipleCandidates())
4149 DRE->setHadMultipleCandidates(true);
4153 Expr *ASTNodeImporter::VisitIntegerLiteral(IntegerLiteral *E) {
4154 QualType T = Importer.Import(E->getType());
4158 return IntegerLiteral::Create(Importer.getToContext(),
4160 Importer.Import(E->getLocation()));
4163 Expr *ASTNodeImporter::VisitCharacterLiteral(CharacterLiteral *E) {
4164 QualType T = Importer.Import(E->getType());
4168 return new (Importer.getToContext()) CharacterLiteral(E->getValue(),
4170 Importer.Import(E->getLocation()));
4173 Expr *ASTNodeImporter::VisitParenExpr(ParenExpr *E) {
4174 Expr *SubExpr = Importer.Import(E->getSubExpr());
4178 return new (Importer.getToContext())
4179 ParenExpr(Importer.Import(E->getLParen()),
4180 Importer.Import(E->getRParen()),
4184 Expr *ASTNodeImporter::VisitUnaryOperator(UnaryOperator *E) {
4185 QualType T = Importer.Import(E->getType());
4189 Expr *SubExpr = Importer.Import(E->getSubExpr());
4193 return new (Importer.getToContext()) UnaryOperator(SubExpr, E->getOpcode(),
4194 T, E->getValueKind(),
4196 Importer.Import(E->getOperatorLoc()));
4199 Expr *ASTNodeImporter::VisitUnaryExprOrTypeTraitExpr(
4200 UnaryExprOrTypeTraitExpr *E) {
4201 QualType ResultType = Importer.Import(E->getType());
4203 if (E->isArgumentType()) {
4204 TypeSourceInfo *TInfo = Importer.Import(E->getArgumentTypeInfo());
4208 return new (Importer.getToContext()) UnaryExprOrTypeTraitExpr(E->getKind(),
4210 Importer.Import(E->getOperatorLoc()),
4211 Importer.Import(E->getRParenLoc()));
4214 Expr *SubExpr = Importer.Import(E->getArgumentExpr());
4218 return new (Importer.getToContext()) UnaryExprOrTypeTraitExpr(E->getKind(),
4219 SubExpr, ResultType,
4220 Importer.Import(E->getOperatorLoc()),
4221 Importer.Import(E->getRParenLoc()));
4224 Expr *ASTNodeImporter::VisitBinaryOperator(BinaryOperator *E) {
4225 QualType T = Importer.Import(E->getType());
4229 Expr *LHS = Importer.Import(E->getLHS());
4233 Expr *RHS = Importer.Import(E->getRHS());
4237 return new (Importer.getToContext()) BinaryOperator(LHS, RHS, E->getOpcode(),
4238 T, E->getValueKind(),
4240 Importer.Import(E->getOperatorLoc()),
4241 E->isFPContractable());
4244 Expr *ASTNodeImporter::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
4245 QualType T = Importer.Import(E->getType());
4249 QualType CompLHSType = Importer.Import(E->getComputationLHSType());
4250 if (CompLHSType.isNull())
4253 QualType CompResultType = Importer.Import(E->getComputationResultType());
4254 if (CompResultType.isNull())
4257 Expr *LHS = Importer.Import(E->getLHS());
4261 Expr *RHS = Importer.Import(E->getRHS());
4265 return new (Importer.getToContext())
4266 CompoundAssignOperator(LHS, RHS, E->getOpcode(),
4267 T, E->getValueKind(),
4269 CompLHSType, CompResultType,
4270 Importer.Import(E->getOperatorLoc()),
4271 E->isFPContractable());
4274 static bool ImportCastPath(CastExpr *E, CXXCastPath &Path) {
4275 if (E->path_empty()) return false;
4277 // TODO: import cast paths
4281 Expr *ASTNodeImporter::VisitImplicitCastExpr(ImplicitCastExpr *E) {
4282 QualType T = Importer.Import(E->getType());
4286 Expr *SubExpr = Importer.Import(E->getSubExpr());
4290 CXXCastPath BasePath;
4291 if (ImportCastPath(E, BasePath))
4294 return ImplicitCastExpr::Create(Importer.getToContext(), T, E->getCastKind(),
4295 SubExpr, &BasePath, E->getValueKind());
4298 Expr *ASTNodeImporter::VisitCStyleCastExpr(CStyleCastExpr *E) {
4299 QualType T = Importer.Import(E->getType());
4303 Expr *SubExpr = Importer.Import(E->getSubExpr());
4307 TypeSourceInfo *TInfo = Importer.Import(E->getTypeInfoAsWritten());
4308 if (!TInfo && E->getTypeInfoAsWritten())
4311 CXXCastPath BasePath;
4312 if (ImportCastPath(E, BasePath))
4315 return CStyleCastExpr::Create(Importer.getToContext(), T,
4316 E->getValueKind(), E->getCastKind(),
4317 SubExpr, &BasePath, TInfo,
4318 Importer.Import(E->getLParenLoc()),
4319 Importer.Import(E->getRParenLoc()));
4322 ASTImporter::ASTImporter(ASTContext &ToContext, FileManager &ToFileManager,
4323 ASTContext &FromContext, FileManager &FromFileManager,
4325 : ToContext(ToContext), FromContext(FromContext),
4326 ToFileManager(ToFileManager), FromFileManager(FromFileManager),
4327 Minimal(MinimalImport), LastDiagFromFrom(false)
4329 ImportedDecls[FromContext.getTranslationUnitDecl()]
4330 = ToContext.getTranslationUnitDecl();
4333 ASTImporter::~ASTImporter() { }
4335 QualType ASTImporter::Import(QualType FromT) {
4339 const Type *fromTy = FromT.getTypePtr();
4341 // Check whether we've already imported this type.
4342 llvm::DenseMap<const Type *, const Type *>::iterator Pos
4343 = ImportedTypes.find(fromTy);
4344 if (Pos != ImportedTypes.end())
4345 return ToContext.getQualifiedType(Pos->second, FromT.getLocalQualifiers());
4348 ASTNodeImporter Importer(*this);
4349 QualType ToT = Importer.Visit(fromTy);
4353 // Record the imported type.
4354 ImportedTypes[fromTy] = ToT.getTypePtr();
4356 return ToContext.getQualifiedType(ToT, FromT.getLocalQualifiers());
4359 TypeSourceInfo *ASTImporter::Import(TypeSourceInfo *FromTSI) {
4363 // FIXME: For now we just create a "trivial" type source info based
4364 // on the type and a single location. Implement a real version of this.
4365 QualType T = Import(FromTSI->getType());
4369 return ToContext.getTrivialTypeSourceInfo(T,
4370 FromTSI->getTypeLoc().getLocStart());
4373 Decl *ASTImporter::Import(Decl *FromD) {
4377 ASTNodeImporter Importer(*this);
4379 // Check whether we've already imported this declaration.
4380 llvm::DenseMap<Decl *, Decl *>::iterator Pos = ImportedDecls.find(FromD);
4381 if (Pos != ImportedDecls.end()) {
4382 Decl *ToD = Pos->second;
4383 Importer.ImportDefinitionIfNeeded(FromD, ToD);
4388 Decl *ToD = Importer.Visit(FromD);
4392 // Record the imported declaration.
4393 ImportedDecls[FromD] = ToD;
4395 if (TagDecl *FromTag = dyn_cast<TagDecl>(FromD)) {
4396 // Keep track of anonymous tags that have an associated typedef.
4397 if (FromTag->getTypedefNameForAnonDecl())
4398 AnonTagsWithPendingTypedefs.push_back(FromTag);
4399 } else if (TypedefNameDecl *FromTypedef = dyn_cast<TypedefNameDecl>(FromD)) {
4400 // When we've finished transforming a typedef, see whether it was the
4401 // typedef for an anonymous tag.
4402 for (SmallVector<TagDecl *, 4>::iterator
4403 FromTag = AnonTagsWithPendingTypedefs.begin(),
4404 FromTagEnd = AnonTagsWithPendingTypedefs.end();
4405 FromTag != FromTagEnd; ++FromTag) {
4406 if ((*FromTag)->getTypedefNameForAnonDecl() == FromTypedef) {
4407 if (TagDecl *ToTag = cast_or_null<TagDecl>(Import(*FromTag))) {
4408 // We found the typedef for an anonymous tag; link them.
4409 ToTag->setTypedefNameForAnonDecl(cast<TypedefNameDecl>(ToD));
4410 AnonTagsWithPendingTypedefs.erase(FromTag);
4420 DeclContext *ASTImporter::ImportContext(DeclContext *FromDC) {
4424 DeclContext *ToDC = cast_or_null<DeclContext>(Import(cast<Decl>(FromDC)));
4428 // When we're using a record/enum/Objective-C class/protocol as a context, we
4429 // need it to have a definition.
4430 if (RecordDecl *ToRecord = dyn_cast<RecordDecl>(ToDC)) {
4431 RecordDecl *FromRecord = cast<RecordDecl>(FromDC);
4432 if (ToRecord->isCompleteDefinition()) {
4434 } else if (FromRecord->isCompleteDefinition()) {
4435 ASTNodeImporter(*this).ImportDefinition(FromRecord, ToRecord,
4436 ASTNodeImporter::IDK_Basic);
4438 CompleteDecl(ToRecord);
4440 } else if (EnumDecl *ToEnum = dyn_cast<EnumDecl>(ToDC)) {
4441 EnumDecl *FromEnum = cast<EnumDecl>(FromDC);
4442 if (ToEnum->isCompleteDefinition()) {
4444 } else if (FromEnum->isCompleteDefinition()) {
4445 ASTNodeImporter(*this).ImportDefinition(FromEnum, ToEnum,
4446 ASTNodeImporter::IDK_Basic);
4448 CompleteDecl(ToEnum);
4450 } else if (ObjCInterfaceDecl *ToClass = dyn_cast<ObjCInterfaceDecl>(ToDC)) {
4451 ObjCInterfaceDecl *FromClass = cast<ObjCInterfaceDecl>(FromDC);
4452 if (ToClass->getDefinition()) {
4454 } else if (ObjCInterfaceDecl *FromDef = FromClass->getDefinition()) {
4455 ASTNodeImporter(*this).ImportDefinition(FromDef, ToClass,
4456 ASTNodeImporter::IDK_Basic);
4458 CompleteDecl(ToClass);
4460 } else if (ObjCProtocolDecl *ToProto = dyn_cast<ObjCProtocolDecl>(ToDC)) {
4461 ObjCProtocolDecl *FromProto = cast<ObjCProtocolDecl>(FromDC);
4462 if (ToProto->getDefinition()) {
4464 } else if (ObjCProtocolDecl *FromDef = FromProto->getDefinition()) {
4465 ASTNodeImporter(*this).ImportDefinition(FromDef, ToProto,
4466 ASTNodeImporter::IDK_Basic);
4468 CompleteDecl(ToProto);
4475 Expr *ASTImporter::Import(Expr *FromE) {
4479 return cast_or_null<Expr>(Import(cast<Stmt>(FromE)));
4482 Stmt *ASTImporter::Import(Stmt *FromS) {
4486 // Check whether we've already imported this declaration.
4487 llvm::DenseMap<Stmt *, Stmt *>::iterator Pos = ImportedStmts.find(FromS);
4488 if (Pos != ImportedStmts.end())
4492 ASTNodeImporter Importer(*this);
4493 Stmt *ToS = Importer.Visit(FromS);
4497 // Record the imported declaration.
4498 ImportedStmts[FromS] = ToS;
4502 NestedNameSpecifier *ASTImporter::Import(NestedNameSpecifier *FromNNS) {
4506 NestedNameSpecifier *prefix = Import(FromNNS->getPrefix());
4508 switch (FromNNS->getKind()) {
4509 case NestedNameSpecifier::Identifier:
4510 if (IdentifierInfo *II = Import(FromNNS->getAsIdentifier())) {
4511 return NestedNameSpecifier::Create(ToContext, prefix, II);
4515 case NestedNameSpecifier::Namespace:
4516 if (NamespaceDecl *NS =
4517 cast<NamespaceDecl>(Import(FromNNS->getAsNamespace()))) {
4518 return NestedNameSpecifier::Create(ToContext, prefix, NS);
4522 case NestedNameSpecifier::NamespaceAlias:
4523 if (NamespaceAliasDecl *NSAD =
4524 cast<NamespaceAliasDecl>(Import(FromNNS->getAsNamespaceAlias()))) {
4525 return NestedNameSpecifier::Create(ToContext, prefix, NSAD);
4529 case NestedNameSpecifier::Global:
4530 return NestedNameSpecifier::GlobalSpecifier(ToContext);
4532 case NestedNameSpecifier::TypeSpec:
4533 case NestedNameSpecifier::TypeSpecWithTemplate: {
4534 QualType T = Import(QualType(FromNNS->getAsType(), 0u));
4536 bool bTemplate = FromNNS->getKind() ==
4537 NestedNameSpecifier::TypeSpecWithTemplate;
4538 return NestedNameSpecifier::Create(ToContext, prefix,
4539 bTemplate, T.getTypePtr());
4545 llvm_unreachable("Invalid nested name specifier kind");
4548 NestedNameSpecifierLoc ASTImporter::Import(NestedNameSpecifierLoc FromNNS) {
4549 // FIXME: Implement!
4550 return NestedNameSpecifierLoc();
4553 TemplateName ASTImporter::Import(TemplateName From) {
4554 switch (From.getKind()) {
4555 case TemplateName::Template:
4556 if (TemplateDecl *ToTemplate
4557 = cast_or_null<TemplateDecl>(Import(From.getAsTemplateDecl())))
4558 return TemplateName(ToTemplate);
4560 return TemplateName();
4562 case TemplateName::OverloadedTemplate: {
4563 OverloadedTemplateStorage *FromStorage = From.getAsOverloadedTemplate();
4564 UnresolvedSet<2> ToTemplates;
4565 for (OverloadedTemplateStorage::iterator I = FromStorage->begin(),
4566 E = FromStorage->end();
4568 if (NamedDecl *To = cast_or_null<NamedDecl>(Import(*I)))
4569 ToTemplates.addDecl(To);
4571 return TemplateName();
4573 return ToContext.getOverloadedTemplateName(ToTemplates.begin(),
4577 case TemplateName::QualifiedTemplate: {
4578 QualifiedTemplateName *QTN = From.getAsQualifiedTemplateName();
4579 NestedNameSpecifier *Qualifier = Import(QTN->getQualifier());
4581 return TemplateName();
4583 if (TemplateDecl *ToTemplate
4584 = cast_or_null<TemplateDecl>(Import(From.getAsTemplateDecl())))
4585 return ToContext.getQualifiedTemplateName(Qualifier,
4586 QTN->hasTemplateKeyword(),
4589 return TemplateName();
4592 case TemplateName::DependentTemplate: {
4593 DependentTemplateName *DTN = From.getAsDependentTemplateName();
4594 NestedNameSpecifier *Qualifier = Import(DTN->getQualifier());
4596 return TemplateName();
4598 if (DTN->isIdentifier()) {
4599 return ToContext.getDependentTemplateName(Qualifier,
4600 Import(DTN->getIdentifier()));
4603 return ToContext.getDependentTemplateName(Qualifier, DTN->getOperator());
4606 case TemplateName::SubstTemplateTemplateParm: {
4607 SubstTemplateTemplateParmStorage *subst
4608 = From.getAsSubstTemplateTemplateParm();
4609 TemplateTemplateParmDecl *param
4610 = cast_or_null<TemplateTemplateParmDecl>(Import(subst->getParameter()));
4612 return TemplateName();
4614 TemplateName replacement = Import(subst->getReplacement());
4615 if (replacement.isNull()) return TemplateName();
4617 return ToContext.getSubstTemplateTemplateParm(param, replacement);
4620 case TemplateName::SubstTemplateTemplateParmPack: {
4621 SubstTemplateTemplateParmPackStorage *SubstPack
4622 = From.getAsSubstTemplateTemplateParmPack();
4623 TemplateTemplateParmDecl *Param
4624 = cast_or_null<TemplateTemplateParmDecl>(
4625 Import(SubstPack->getParameterPack()));
4627 return TemplateName();
4629 ASTNodeImporter Importer(*this);
4630 TemplateArgument ArgPack
4631 = Importer.ImportTemplateArgument(SubstPack->getArgumentPack());
4632 if (ArgPack.isNull())
4633 return TemplateName();
4635 return ToContext.getSubstTemplateTemplateParmPack(Param, ArgPack);
4639 llvm_unreachable("Invalid template name kind");
4642 SourceLocation ASTImporter::Import(SourceLocation FromLoc) {
4643 if (FromLoc.isInvalid())
4644 return SourceLocation();
4646 SourceManager &FromSM = FromContext.getSourceManager();
4648 // For now, map everything down to its spelling location, so that we
4649 // don't have to import macro expansions.
4650 // FIXME: Import macro expansions!
4651 FromLoc = FromSM.getSpellingLoc(FromLoc);
4652 std::pair<FileID, unsigned> Decomposed = FromSM.getDecomposedLoc(FromLoc);
4653 SourceManager &ToSM = ToContext.getSourceManager();
4654 return ToSM.getLocForStartOfFile(Import(Decomposed.first))
4655 .getLocWithOffset(Decomposed.second);
4658 SourceRange ASTImporter::Import(SourceRange FromRange) {
4659 return SourceRange(Import(FromRange.getBegin()), Import(FromRange.getEnd()));
4662 FileID ASTImporter::Import(FileID FromID) {
4663 llvm::DenseMap<FileID, FileID>::iterator Pos
4664 = ImportedFileIDs.find(FromID);
4665 if (Pos != ImportedFileIDs.end())
4668 SourceManager &FromSM = FromContext.getSourceManager();
4669 SourceManager &ToSM = ToContext.getSourceManager();
4670 const SrcMgr::SLocEntry &FromSLoc = FromSM.getSLocEntry(FromID);
4671 assert(FromSLoc.isFile() && "Cannot handle macro expansions yet");
4673 // Include location of this file.
4674 SourceLocation ToIncludeLoc = Import(FromSLoc.getFile().getIncludeLoc());
4676 // Map the FileID for to the "to" source manager.
4678 const SrcMgr::ContentCache *Cache = FromSLoc.getFile().getContentCache();
4679 if (Cache->OrigEntry) {
4680 // FIXME: We probably want to use getVirtualFile(), so we don't hit the
4682 // FIXME: We definitely want to re-use the existing MemoryBuffer, rather
4683 // than mmap the files several times.
4684 const FileEntry *Entry = ToFileManager.getFile(Cache->OrigEntry->getName());
4685 ToID = ToSM.createFileID(Entry, ToIncludeLoc,
4686 FromSLoc.getFile().getFileCharacteristic());
4688 // FIXME: We want to re-use the existing MemoryBuffer!
4689 const llvm::MemoryBuffer *
4690 FromBuf = Cache->getBuffer(FromContext.getDiagnostics(), FromSM);
4691 llvm::MemoryBuffer *ToBuf
4692 = llvm::MemoryBuffer::getMemBufferCopy(FromBuf->getBuffer(),
4693 FromBuf->getBufferIdentifier());
4694 ToID = ToSM.createFileIDForMemBuffer(ToBuf,
4695 FromSLoc.getFile().getFileCharacteristic());
4699 ImportedFileIDs[FromID] = ToID;
4703 void ASTImporter::ImportDefinition(Decl *From) {
4704 Decl *To = Import(From);
4708 if (DeclContext *FromDC = cast<DeclContext>(From)) {
4709 ASTNodeImporter Importer(*this);
4711 if (RecordDecl *ToRecord = dyn_cast<RecordDecl>(To)) {
4712 if (!ToRecord->getDefinition()) {
4713 Importer.ImportDefinition(cast<RecordDecl>(FromDC), ToRecord,
4714 ASTNodeImporter::IDK_Everything);
4719 if (EnumDecl *ToEnum = dyn_cast<EnumDecl>(To)) {
4720 if (!ToEnum->getDefinition()) {
4721 Importer.ImportDefinition(cast<EnumDecl>(FromDC), ToEnum,
4722 ASTNodeImporter::IDK_Everything);
4727 if (ObjCInterfaceDecl *ToIFace = dyn_cast<ObjCInterfaceDecl>(To)) {
4728 if (!ToIFace->getDefinition()) {
4729 Importer.ImportDefinition(cast<ObjCInterfaceDecl>(FromDC), ToIFace,
4730 ASTNodeImporter::IDK_Everything);
4735 if (ObjCProtocolDecl *ToProto = dyn_cast<ObjCProtocolDecl>(To)) {
4736 if (!ToProto->getDefinition()) {
4737 Importer.ImportDefinition(cast<ObjCProtocolDecl>(FromDC), ToProto,
4738 ASTNodeImporter::IDK_Everything);
4743 Importer.ImportDeclContext(FromDC, true);
4747 DeclarationName ASTImporter::Import(DeclarationName FromName) {
4749 return DeclarationName();
4751 switch (FromName.getNameKind()) {
4752 case DeclarationName::Identifier:
4753 return Import(FromName.getAsIdentifierInfo());
4755 case DeclarationName::ObjCZeroArgSelector:
4756 case DeclarationName::ObjCOneArgSelector:
4757 case DeclarationName::ObjCMultiArgSelector:
4758 return Import(FromName.getObjCSelector());
4760 case DeclarationName::CXXConstructorName: {
4761 QualType T = Import(FromName.getCXXNameType());
4763 return DeclarationName();
4765 return ToContext.DeclarationNames.getCXXConstructorName(
4766 ToContext.getCanonicalType(T));
4769 case DeclarationName::CXXDestructorName: {
4770 QualType T = Import(FromName.getCXXNameType());
4772 return DeclarationName();
4774 return ToContext.DeclarationNames.getCXXDestructorName(
4775 ToContext.getCanonicalType(T));
4778 case DeclarationName::CXXConversionFunctionName: {
4779 QualType T = Import(FromName.getCXXNameType());
4781 return DeclarationName();
4783 return ToContext.DeclarationNames.getCXXConversionFunctionName(
4784 ToContext.getCanonicalType(T));
4787 case DeclarationName::CXXOperatorName:
4788 return ToContext.DeclarationNames.getCXXOperatorName(
4789 FromName.getCXXOverloadedOperator());
4791 case DeclarationName::CXXLiteralOperatorName:
4792 return ToContext.DeclarationNames.getCXXLiteralOperatorName(
4793 Import(FromName.getCXXLiteralIdentifier()));
4795 case DeclarationName::CXXUsingDirective:
4797 return DeclarationName::getUsingDirectiveName();
4800 llvm_unreachable("Invalid DeclarationName Kind!");
4803 IdentifierInfo *ASTImporter::Import(const IdentifierInfo *FromId) {
4807 return &ToContext.Idents.get(FromId->getName());
4810 Selector ASTImporter::Import(Selector FromSel) {
4811 if (FromSel.isNull())
4814 SmallVector<IdentifierInfo *, 4> Idents;
4815 Idents.push_back(Import(FromSel.getIdentifierInfoForSlot(0)));
4816 for (unsigned I = 1, N = FromSel.getNumArgs(); I < N; ++I)
4817 Idents.push_back(Import(FromSel.getIdentifierInfoForSlot(I)));
4818 return ToContext.Selectors.getSelector(FromSel.getNumArgs(), Idents.data());
4821 DeclarationName ASTImporter::HandleNameConflict(DeclarationName Name,
4825 unsigned NumDecls) {
4829 DiagnosticBuilder ASTImporter::ToDiag(SourceLocation Loc, unsigned DiagID) {
4830 if (LastDiagFromFrom)
4831 ToContext.getDiagnostics().notePriorDiagnosticFrom(
4832 FromContext.getDiagnostics());
4833 LastDiagFromFrom = false;
4834 return ToContext.getDiagnostics().Report(Loc, DiagID);
4837 DiagnosticBuilder ASTImporter::FromDiag(SourceLocation Loc, unsigned DiagID) {
4838 if (!LastDiagFromFrom)
4839 FromContext.getDiagnostics().notePriorDiagnosticFrom(
4840 ToContext.getDiagnostics());
4841 LastDiagFromFrom = true;
4842 return FromContext.getDiagnostics().Report(Loc, DiagID);
4845 void ASTImporter::CompleteDecl (Decl *D) {
4846 if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) {
4847 if (!ID->getDefinition())
4848 ID->startDefinition();
4850 else if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D)) {
4851 if (!PD->getDefinition())
4852 PD->startDefinition();
4854 else if (TagDecl *TD = dyn_cast<TagDecl>(D)) {
4855 if (!TD->getDefinition() && !TD->isBeingDefined()) {
4856 TD->startDefinition();
4857 TD->setCompleteDefinition(true);
4861 assert (0 && "CompleteDecl called on a Decl that can't be completed");
4865 Decl *ASTImporter::Imported(Decl *From, Decl *To) {
4866 ImportedDecls[From] = To;
4870 bool ASTImporter::IsStructurallyEquivalent(QualType From, QualType To,
4872 llvm::DenseMap<const Type *, const Type *>::iterator Pos
4873 = ImportedTypes.find(From.getTypePtr());
4874 if (Pos != ImportedTypes.end() && ToContext.hasSameType(Import(From), To))
4877 StructuralEquivalenceContext Ctx(FromContext, ToContext, NonEquivalentDecls,
4879 return Ctx.IsStructurallyEquivalent(From, To);