File: | src/gnu/usr.bin/clang/libclangAST/../../../llvm/clang/lib/AST/ASTImporter.cpp |
Warning: | line 8779, column 47 Called C++ object pointer is null |
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1 | //===- ASTImporter.cpp - Importing ASTs from other Contexts ---------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | // This file defines the ASTImporter class which imports AST nodes from one |
10 | // context into another context. |
11 | // |
12 | //===----------------------------------------------------------------------===// |
13 | |
14 | #include "clang/AST/ASTImporter.h" |
15 | #include "clang/AST/ASTImporterSharedState.h" |
16 | #include "clang/AST/ASTContext.h" |
17 | #include "clang/AST/ASTDiagnostic.h" |
18 | #include "clang/AST/ASTStructuralEquivalence.h" |
19 | #include "clang/AST/Attr.h" |
20 | #include "clang/AST/Decl.h" |
21 | #include "clang/AST/DeclAccessPair.h" |
22 | #include "clang/AST/DeclBase.h" |
23 | #include "clang/AST/DeclCXX.h" |
24 | #include "clang/AST/DeclFriend.h" |
25 | #include "clang/AST/DeclGroup.h" |
26 | #include "clang/AST/DeclObjC.h" |
27 | #include "clang/AST/DeclTemplate.h" |
28 | #include "clang/AST/DeclVisitor.h" |
29 | #include "clang/AST/DeclarationName.h" |
30 | #include "clang/AST/Expr.h" |
31 | #include "clang/AST/ExprCXX.h" |
32 | #include "clang/AST/ExprObjC.h" |
33 | #include "clang/AST/ExternalASTSource.h" |
34 | #include "clang/AST/LambdaCapture.h" |
35 | #include "clang/AST/NestedNameSpecifier.h" |
36 | #include "clang/AST/OperationKinds.h" |
37 | #include "clang/AST/Stmt.h" |
38 | #include "clang/AST/StmtCXX.h" |
39 | #include "clang/AST/StmtObjC.h" |
40 | #include "clang/AST/StmtVisitor.h" |
41 | #include "clang/AST/TemplateBase.h" |
42 | #include "clang/AST/TemplateName.h" |
43 | #include "clang/AST/Type.h" |
44 | #include "clang/AST/TypeLoc.h" |
45 | #include "clang/AST/TypeVisitor.h" |
46 | #include "clang/AST/UnresolvedSet.h" |
47 | #include "clang/Basic/Builtins.h" |
48 | #include "clang/Basic/ExceptionSpecificationType.h" |
49 | #include "clang/Basic/FileManager.h" |
50 | #include "clang/Basic/IdentifierTable.h" |
51 | #include "clang/Basic/LLVM.h" |
52 | #include "clang/Basic/LangOptions.h" |
53 | #include "clang/Basic/SourceLocation.h" |
54 | #include "clang/Basic/SourceManager.h" |
55 | #include "clang/Basic/Specifiers.h" |
56 | #include "llvm/ADT/APSInt.h" |
57 | #include "llvm/ADT/ArrayRef.h" |
58 | #include "llvm/ADT/DenseMap.h" |
59 | #include "llvm/ADT/None.h" |
60 | #include "llvm/ADT/Optional.h" |
61 | #include "llvm/ADT/ScopeExit.h" |
62 | #include "llvm/ADT/STLExtras.h" |
63 | #include "llvm/ADT/SmallVector.h" |
64 | #include "llvm/Support/Casting.h" |
65 | #include "llvm/Support/ErrorHandling.h" |
66 | #include "llvm/Support/MemoryBuffer.h" |
67 | #include <algorithm> |
68 | #include <cassert> |
69 | #include <cstddef> |
70 | #include <memory> |
71 | #include <type_traits> |
72 | #include <utility> |
73 | |
74 | namespace clang { |
75 | |
76 | using llvm::make_error; |
77 | using llvm::Error; |
78 | using llvm::Expected; |
79 | using ExpectedType = llvm::Expected<QualType>; |
80 | using ExpectedStmt = llvm::Expected<Stmt *>; |
81 | using ExpectedExpr = llvm::Expected<Expr *>; |
82 | using ExpectedDecl = llvm::Expected<Decl *>; |
83 | using ExpectedSLoc = llvm::Expected<SourceLocation>; |
84 | using ExpectedName = llvm::Expected<DeclarationName>; |
85 | |
86 | std::string ImportError::toString() const { |
87 | // FIXME: Improve error texts. |
88 | switch (Error) { |
89 | case NameConflict: |
90 | return "NameConflict"; |
91 | case UnsupportedConstruct: |
92 | return "UnsupportedConstruct"; |
93 | case Unknown: |
94 | return "Unknown error"; |
95 | } |
96 | llvm_unreachable("Invalid error code.")__builtin_unreachable(); |
97 | return "Invalid error code."; |
98 | } |
99 | |
100 | void ImportError::log(raw_ostream &OS) const { |
101 | OS << toString(); |
102 | } |
103 | |
104 | std::error_code ImportError::convertToErrorCode() const { |
105 | llvm_unreachable("Function not implemented.")__builtin_unreachable(); |
106 | } |
107 | |
108 | char ImportError::ID; |
109 | |
110 | template <class T> |
111 | SmallVector<Decl *, 2> |
112 | getCanonicalForwardRedeclChain(Redeclarable<T>* D) { |
113 | SmallVector<Decl *, 2> Redecls; |
114 | for (auto *R : D->getFirstDecl()->redecls()) { |
115 | if (R != D->getFirstDecl()) |
116 | Redecls.push_back(R); |
117 | } |
118 | Redecls.push_back(D->getFirstDecl()); |
119 | std::reverse(Redecls.begin(), Redecls.end()); |
120 | return Redecls; |
121 | } |
122 | |
123 | SmallVector<Decl*, 2> getCanonicalForwardRedeclChain(Decl* D) { |
124 | if (auto *FD = dyn_cast<FunctionDecl>(D)) |
125 | return getCanonicalForwardRedeclChain<FunctionDecl>(FD); |
126 | if (auto *VD = dyn_cast<VarDecl>(D)) |
127 | return getCanonicalForwardRedeclChain<VarDecl>(VD); |
128 | if (auto *TD = dyn_cast<TagDecl>(D)) |
129 | return getCanonicalForwardRedeclChain<TagDecl>(TD); |
130 | llvm_unreachable("Bad declaration kind")__builtin_unreachable(); |
131 | } |
132 | |
133 | void updateFlags(const Decl *From, Decl *To) { |
134 | // Check if some flags or attrs are new in 'From' and copy into 'To'. |
135 | // FIXME: Other flags or attrs? |
136 | if (From->isUsed(false) && !To->isUsed(false)) |
137 | To->setIsUsed(); |
138 | } |
139 | |
140 | class ASTNodeImporter : public TypeVisitor<ASTNodeImporter, ExpectedType>, |
141 | public DeclVisitor<ASTNodeImporter, ExpectedDecl>, |
142 | public StmtVisitor<ASTNodeImporter, ExpectedStmt> { |
143 | ASTImporter &Importer; |
144 | |
145 | // Use this instead of Importer.importInto . |
146 | template <typename ImportT> |
147 | LLVM_NODISCARD[[clang::warn_unused_result]] Error importInto(ImportT &To, const ImportT &From) { |
148 | return Importer.importInto(To, From); |
149 | } |
150 | |
151 | // Use this to import pointers of specific type. |
152 | template <typename ImportT> |
153 | LLVM_NODISCARD[[clang::warn_unused_result]] Error importInto(ImportT *&To, ImportT *From) { |
154 | auto ToOrErr = Importer.Import(From); |
155 | if (ToOrErr) |
156 | To = cast_or_null<ImportT>(*ToOrErr); |
157 | return ToOrErr.takeError(); |
158 | } |
159 | |
160 | // Call the import function of ASTImporter for a baseclass of type `T` and |
161 | // cast the return value to `T`. |
162 | template <typename T> |
163 | Expected<T *> import(T *From) { |
164 | auto ToOrErr = Importer.Import(From); |
165 | if (!ToOrErr) |
166 | return ToOrErr.takeError(); |
167 | return cast_or_null<T>(*ToOrErr); |
168 | } |
169 | |
170 | template <typename T> |
171 | Expected<T *> import(const T *From) { |
172 | return import(const_cast<T *>(From)); |
173 | } |
174 | |
175 | // Call the import function of ASTImporter for type `T`. |
176 | template <typename T> |
177 | Expected<T> import(const T &From) { |
178 | return Importer.Import(From); |
179 | } |
180 | |
181 | // Import an Optional<T> by importing the contained T, if any. |
182 | template<typename T> |
183 | Expected<Optional<T>> import(Optional<T> From) { |
184 | if (!From) |
185 | return Optional<T>(); |
186 | return import(*From); |
187 | } |
188 | |
189 | // Helper for chaining together multiple imports. If an error is detected, |
190 | // subsequent imports will return default constructed nodes, so that failure |
191 | // can be detected with a single conditional branch after a sequence of |
192 | // imports. |
193 | template <typename T> T importChecked(Error &Err, const T &From) { |
194 | // Don't attempt to import nodes if we hit an error earlier. |
195 | if (Err) |
196 | return T{}; |
197 | Expected<T> MaybeVal = import(From); |
198 | if (!MaybeVal) { |
199 | Err = MaybeVal.takeError(); |
200 | return T{}; |
201 | } |
202 | return *MaybeVal; |
203 | } |
204 | |
205 | ExplicitSpecifier importExplicitSpecifier(Error &Err, |
206 | ExplicitSpecifier ESpec); |
207 | |
208 | // Wrapper for an overload set. |
209 | template <typename ToDeclT> struct CallOverloadedCreateFun { |
210 | template <typename... Args> decltype(auto) operator()(Args &&... args) { |
211 | return ToDeclT::Create(std::forward<Args>(args)...); |
212 | } |
213 | }; |
214 | |
215 | // Always use these functions to create a Decl during import. There are |
216 | // certain tasks which must be done after the Decl was created, e.g. we |
217 | // must immediately register that as an imported Decl. The parameter `ToD` |
218 | // will be set to the newly created Decl or if had been imported before |
219 | // then to the already imported Decl. Returns a bool value set to true if |
220 | // the `FromD` had been imported before. |
221 | template <typename ToDeclT, typename FromDeclT, typename... Args> |
222 | LLVM_NODISCARD[[clang::warn_unused_result]] bool GetImportedOrCreateDecl(ToDeclT *&ToD, FromDeclT *FromD, |
223 | Args &&... args) { |
224 | // There may be several overloads of ToDeclT::Create. We must make sure |
225 | // to call the one which would be chosen by the arguments, thus we use a |
226 | // wrapper for the overload set. |
227 | CallOverloadedCreateFun<ToDeclT> OC; |
228 | return GetImportedOrCreateSpecialDecl(ToD, OC, FromD, |
229 | std::forward<Args>(args)...); |
230 | } |
231 | // Use this overload if a special Type is needed to be created. E.g if we |
232 | // want to create a `TypeAliasDecl` and assign that to a `TypedefNameDecl` |
233 | // then: |
234 | // TypedefNameDecl *ToTypedef; |
235 | // GetImportedOrCreateDecl<TypeAliasDecl>(ToTypedef, FromD, ...); |
236 | template <typename NewDeclT, typename ToDeclT, typename FromDeclT, |
237 | typename... Args> |
238 | LLVM_NODISCARD[[clang::warn_unused_result]] bool GetImportedOrCreateDecl(ToDeclT *&ToD, FromDeclT *FromD, |
239 | Args &&... args) { |
240 | CallOverloadedCreateFun<NewDeclT> OC; |
241 | return GetImportedOrCreateSpecialDecl(ToD, OC, FromD, |
242 | std::forward<Args>(args)...); |
243 | } |
244 | // Use this version if a special create function must be |
245 | // used, e.g. CXXRecordDecl::CreateLambda . |
246 | template <typename ToDeclT, typename CreateFunT, typename FromDeclT, |
247 | typename... Args> |
248 | LLVM_NODISCARD[[clang::warn_unused_result]] bool |
249 | GetImportedOrCreateSpecialDecl(ToDeclT *&ToD, CreateFunT CreateFun, |
250 | FromDeclT *FromD, Args &&... args) { |
251 | if (Importer.getImportDeclErrorIfAny(FromD)) { |
252 | ToD = nullptr; |
253 | return true; // Already imported but with error. |
254 | } |
255 | ToD = cast_or_null<ToDeclT>(Importer.GetAlreadyImportedOrNull(FromD)); |
256 | if (ToD) |
257 | return true; // Already imported. |
258 | ToD = CreateFun(std::forward<Args>(args)...); |
259 | // Keep track of imported Decls. |
260 | Importer.RegisterImportedDecl(FromD, ToD); |
261 | InitializeImportedDecl(FromD, ToD); |
262 | return false; // A new Decl is created. |
263 | } |
264 | |
265 | void InitializeImportedDecl(Decl *FromD, Decl *ToD) { |
266 | ToD->IdentifierNamespace = FromD->IdentifierNamespace; |
267 | if (FromD->isUsed()) |
268 | ToD->setIsUsed(); |
269 | if (FromD->isImplicit()) |
270 | ToD->setImplicit(); |
271 | } |
272 | |
273 | // Check if we have found an existing definition. Returns with that |
274 | // definition if yes, otherwise returns null. |
275 | Decl *FindAndMapDefinition(FunctionDecl *D, FunctionDecl *FoundFunction) { |
276 | const FunctionDecl *Definition = nullptr; |
277 | if (D->doesThisDeclarationHaveABody() && |
278 | FoundFunction->hasBody(Definition)) |
279 | return Importer.MapImported(D, const_cast<FunctionDecl *>(Definition)); |
280 | return nullptr; |
281 | } |
282 | |
283 | void addDeclToContexts(Decl *FromD, Decl *ToD) { |
284 | if (Importer.isMinimalImport()) { |
285 | // In minimal import case the decl must be added even if it is not |
286 | // contained in original context, for LLDB compatibility. |
287 | // FIXME: Check if a better solution is possible. |
288 | if (!FromD->getDescribedTemplate() && |
289 | FromD->getFriendObjectKind() == Decl::FOK_None) |
290 | ToD->getLexicalDeclContext()->addDeclInternal(ToD); |
291 | return; |
292 | } |
293 | |
294 | DeclContext *FromDC = FromD->getDeclContext(); |
295 | DeclContext *FromLexicalDC = FromD->getLexicalDeclContext(); |
296 | DeclContext *ToDC = ToD->getDeclContext(); |
297 | DeclContext *ToLexicalDC = ToD->getLexicalDeclContext(); |
298 | |
299 | bool Visible = false; |
300 | if (FromDC->containsDeclAndLoad(FromD)) { |
301 | ToDC->addDeclInternal(ToD); |
302 | Visible = true; |
303 | } |
304 | if (ToDC != ToLexicalDC && FromLexicalDC->containsDeclAndLoad(FromD)) { |
305 | ToLexicalDC->addDeclInternal(ToD); |
306 | Visible = true; |
307 | } |
308 | |
309 | // If the Decl was added to any context, it was made already visible. |
310 | // Otherwise it is still possible that it should be visible. |
311 | if (!Visible) { |
312 | if (auto *FromNamed = dyn_cast<NamedDecl>(FromD)) { |
313 | auto *ToNamed = cast<NamedDecl>(ToD); |
314 | DeclContextLookupResult FromLookup = |
315 | FromDC->lookup(FromNamed->getDeclName()); |
316 | for (NamedDecl *ND : FromLookup) |
317 | if (ND == FromNamed) { |
318 | ToDC->makeDeclVisibleInContext(ToNamed); |
319 | break; |
320 | } |
321 | } |
322 | } |
323 | } |
324 | |
325 | void updateLookupTableForTemplateParameters(TemplateParameterList &Params, |
326 | DeclContext *OldDC) { |
327 | ASTImporterLookupTable *LT = Importer.SharedState->getLookupTable(); |
328 | if (!LT) |
329 | return; |
330 | |
331 | for (NamedDecl *TP : Params) |
332 | LT->update(TP, OldDC); |
333 | } |
334 | |
335 | void updateLookupTableForTemplateParameters(TemplateParameterList &Params) { |
336 | updateLookupTableForTemplateParameters( |
337 | Params, Importer.getToContext().getTranslationUnitDecl()); |
338 | } |
339 | |
340 | public: |
341 | explicit ASTNodeImporter(ASTImporter &Importer) : Importer(Importer) {} |
342 | |
343 | using TypeVisitor<ASTNodeImporter, ExpectedType>::Visit; |
344 | using DeclVisitor<ASTNodeImporter, ExpectedDecl>::Visit; |
345 | using StmtVisitor<ASTNodeImporter, ExpectedStmt>::Visit; |
346 | |
347 | // Importing types |
348 | ExpectedType VisitType(const Type *T); |
349 | ExpectedType VisitAtomicType(const AtomicType *T); |
350 | ExpectedType VisitBuiltinType(const BuiltinType *T); |
351 | ExpectedType VisitDecayedType(const DecayedType *T); |
352 | ExpectedType VisitComplexType(const ComplexType *T); |
353 | ExpectedType VisitPointerType(const PointerType *T); |
354 | ExpectedType VisitBlockPointerType(const BlockPointerType *T); |
355 | ExpectedType VisitLValueReferenceType(const LValueReferenceType *T); |
356 | ExpectedType VisitRValueReferenceType(const RValueReferenceType *T); |
357 | ExpectedType VisitMemberPointerType(const MemberPointerType *T); |
358 | ExpectedType VisitConstantArrayType(const ConstantArrayType *T); |
359 | ExpectedType VisitIncompleteArrayType(const IncompleteArrayType *T); |
360 | ExpectedType VisitVariableArrayType(const VariableArrayType *T); |
361 | ExpectedType VisitDependentSizedArrayType(const DependentSizedArrayType *T); |
362 | // FIXME: DependentSizedExtVectorType |
363 | ExpectedType VisitVectorType(const VectorType *T); |
364 | ExpectedType VisitExtVectorType(const ExtVectorType *T); |
365 | ExpectedType VisitFunctionNoProtoType(const FunctionNoProtoType *T); |
366 | ExpectedType VisitFunctionProtoType(const FunctionProtoType *T); |
367 | ExpectedType VisitUnresolvedUsingType(const UnresolvedUsingType *T); |
368 | ExpectedType VisitParenType(const ParenType *T); |
369 | ExpectedType VisitTypedefType(const TypedefType *T); |
370 | ExpectedType VisitTypeOfExprType(const TypeOfExprType *T); |
371 | // FIXME: DependentTypeOfExprType |
372 | ExpectedType VisitTypeOfType(const TypeOfType *T); |
373 | ExpectedType VisitDecltypeType(const DecltypeType *T); |
374 | ExpectedType VisitUnaryTransformType(const UnaryTransformType *T); |
375 | ExpectedType VisitAutoType(const AutoType *T); |
376 | ExpectedType VisitDeducedTemplateSpecializationType( |
377 | const DeducedTemplateSpecializationType *T); |
378 | ExpectedType VisitInjectedClassNameType(const InjectedClassNameType *T); |
379 | // FIXME: DependentDecltypeType |
380 | ExpectedType VisitRecordType(const RecordType *T); |
381 | ExpectedType VisitEnumType(const EnumType *T); |
382 | ExpectedType VisitAttributedType(const AttributedType *T); |
383 | ExpectedType VisitTemplateTypeParmType(const TemplateTypeParmType *T); |
384 | ExpectedType VisitSubstTemplateTypeParmType( |
385 | const SubstTemplateTypeParmType *T); |
386 | ExpectedType VisitTemplateSpecializationType( |
387 | const TemplateSpecializationType *T); |
388 | ExpectedType VisitElaboratedType(const ElaboratedType *T); |
389 | ExpectedType VisitDependentNameType(const DependentNameType *T); |
390 | ExpectedType VisitPackExpansionType(const PackExpansionType *T); |
391 | ExpectedType VisitDependentTemplateSpecializationType( |
392 | const DependentTemplateSpecializationType *T); |
393 | ExpectedType VisitObjCInterfaceType(const ObjCInterfaceType *T); |
394 | ExpectedType VisitObjCObjectType(const ObjCObjectType *T); |
395 | ExpectedType VisitObjCObjectPointerType(const ObjCObjectPointerType *T); |
396 | |
397 | // Importing declarations |
398 | Error ImportDeclParts(NamedDecl *D, DeclarationName &Name, NamedDecl *&ToD, |
399 | SourceLocation &Loc); |
400 | Error ImportDeclParts( |
401 | NamedDecl *D, DeclContext *&DC, DeclContext *&LexicalDC, |
402 | DeclarationName &Name, NamedDecl *&ToD, SourceLocation &Loc); |
403 | Error ImportDefinitionIfNeeded(Decl *FromD, Decl *ToD = nullptr); |
404 | Error ImportDeclarationNameLoc( |
405 | const DeclarationNameInfo &From, DeclarationNameInfo &To); |
406 | Error ImportDeclContext(DeclContext *FromDC, bool ForceImport = false); |
407 | Error ImportDeclContext( |
408 | Decl *From, DeclContext *&ToDC, DeclContext *&ToLexicalDC); |
409 | Error ImportImplicitMethods(const CXXRecordDecl *From, CXXRecordDecl *To); |
410 | |
411 | Expected<CXXCastPath> ImportCastPath(CastExpr *E); |
412 | Expected<APValue> ImportAPValue(const APValue &FromValue); |
413 | |
414 | using Designator = DesignatedInitExpr::Designator; |
415 | |
416 | /// What we should import from the definition. |
417 | enum ImportDefinitionKind { |
418 | /// Import the default subset of the definition, which might be |
419 | /// nothing (if minimal import is set) or might be everything (if minimal |
420 | /// import is not set). |
421 | IDK_Default, |
422 | /// Import everything. |
423 | IDK_Everything, |
424 | /// Import only the bare bones needed to establish a valid |
425 | /// DeclContext. |
426 | IDK_Basic |
427 | }; |
428 | |
429 | bool shouldForceImportDeclContext(ImportDefinitionKind IDK) { |
430 | return IDK == IDK_Everything || |
431 | (IDK == IDK_Default && !Importer.isMinimalImport()); |
432 | } |
433 | |
434 | Error ImportInitializer(VarDecl *From, VarDecl *To); |
435 | Error ImportDefinition( |
436 | RecordDecl *From, RecordDecl *To, |
437 | ImportDefinitionKind Kind = IDK_Default); |
438 | Error ImportDefinition( |
439 | EnumDecl *From, EnumDecl *To, |
440 | ImportDefinitionKind Kind = IDK_Default); |
441 | Error ImportDefinition( |
442 | ObjCInterfaceDecl *From, ObjCInterfaceDecl *To, |
443 | ImportDefinitionKind Kind = IDK_Default); |
444 | Error ImportDefinition( |
445 | ObjCProtocolDecl *From, ObjCProtocolDecl *To, |
446 | ImportDefinitionKind Kind = IDK_Default); |
447 | Error ImportTemplateArguments( |
448 | const TemplateArgument *FromArgs, unsigned NumFromArgs, |
449 | SmallVectorImpl<TemplateArgument> &ToArgs); |
450 | Expected<TemplateArgument> |
451 | ImportTemplateArgument(const TemplateArgument &From); |
452 | |
453 | template <typename InContainerTy> |
454 | Error ImportTemplateArgumentListInfo( |
455 | const InContainerTy &Container, TemplateArgumentListInfo &ToTAInfo); |
456 | |
457 | template<typename InContainerTy> |
458 | Error ImportTemplateArgumentListInfo( |
459 | SourceLocation FromLAngleLoc, SourceLocation FromRAngleLoc, |
460 | const InContainerTy &Container, TemplateArgumentListInfo &Result); |
461 | |
462 | using TemplateArgsTy = SmallVector<TemplateArgument, 8>; |
463 | using FunctionTemplateAndArgsTy = |
464 | std::tuple<FunctionTemplateDecl *, TemplateArgsTy>; |
465 | Expected<FunctionTemplateAndArgsTy> |
466 | ImportFunctionTemplateWithTemplateArgsFromSpecialization( |
467 | FunctionDecl *FromFD); |
468 | Error ImportTemplateParameterLists(const DeclaratorDecl *FromD, |
469 | DeclaratorDecl *ToD); |
470 | |
471 | Error ImportTemplateInformation(FunctionDecl *FromFD, FunctionDecl *ToFD); |
472 | |
473 | Error ImportFunctionDeclBody(FunctionDecl *FromFD, FunctionDecl *ToFD); |
474 | |
475 | Error ImportDefaultArgOfParmVarDecl(const ParmVarDecl *FromParam, |
476 | ParmVarDecl *ToParam); |
477 | |
478 | template <typename T> |
479 | bool hasSameVisibilityContextAndLinkage(T *Found, T *From); |
480 | |
481 | bool IsStructuralMatch(Decl *From, Decl *To, bool Complain); |
482 | bool IsStructuralMatch(RecordDecl *FromRecord, RecordDecl *ToRecord, |
483 | bool Complain = true); |
484 | bool IsStructuralMatch(VarDecl *FromVar, VarDecl *ToVar, |
485 | bool Complain = true); |
486 | bool IsStructuralMatch(EnumDecl *FromEnum, EnumDecl *ToRecord); |
487 | bool IsStructuralMatch(EnumConstantDecl *FromEC, EnumConstantDecl *ToEC); |
488 | bool IsStructuralMatch(FunctionTemplateDecl *From, |
489 | FunctionTemplateDecl *To); |
490 | bool IsStructuralMatch(FunctionDecl *From, FunctionDecl *To); |
491 | bool IsStructuralMatch(ClassTemplateDecl *From, ClassTemplateDecl *To); |
492 | bool IsStructuralMatch(VarTemplateDecl *From, VarTemplateDecl *To); |
493 | ExpectedDecl VisitDecl(Decl *D); |
494 | ExpectedDecl VisitImportDecl(ImportDecl *D); |
495 | ExpectedDecl VisitEmptyDecl(EmptyDecl *D); |
496 | ExpectedDecl VisitAccessSpecDecl(AccessSpecDecl *D); |
497 | ExpectedDecl VisitStaticAssertDecl(StaticAssertDecl *D); |
498 | ExpectedDecl VisitTranslationUnitDecl(TranslationUnitDecl *D); |
499 | ExpectedDecl VisitBindingDecl(BindingDecl *D); |
500 | ExpectedDecl VisitNamespaceDecl(NamespaceDecl *D); |
501 | ExpectedDecl VisitNamespaceAliasDecl(NamespaceAliasDecl *D); |
502 | ExpectedDecl VisitTypedefNameDecl(TypedefNameDecl *D, bool IsAlias); |
503 | ExpectedDecl VisitTypedefDecl(TypedefDecl *D); |
504 | ExpectedDecl VisitTypeAliasDecl(TypeAliasDecl *D); |
505 | ExpectedDecl VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D); |
506 | ExpectedDecl VisitLabelDecl(LabelDecl *D); |
507 | ExpectedDecl VisitEnumDecl(EnumDecl *D); |
508 | ExpectedDecl VisitRecordDecl(RecordDecl *D); |
509 | ExpectedDecl VisitEnumConstantDecl(EnumConstantDecl *D); |
510 | ExpectedDecl VisitFunctionDecl(FunctionDecl *D); |
511 | ExpectedDecl VisitCXXMethodDecl(CXXMethodDecl *D); |
512 | ExpectedDecl VisitCXXConstructorDecl(CXXConstructorDecl *D); |
513 | ExpectedDecl VisitCXXDestructorDecl(CXXDestructorDecl *D); |
514 | ExpectedDecl VisitCXXConversionDecl(CXXConversionDecl *D); |
515 | ExpectedDecl VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D); |
516 | ExpectedDecl VisitFieldDecl(FieldDecl *D); |
517 | ExpectedDecl VisitIndirectFieldDecl(IndirectFieldDecl *D); |
518 | ExpectedDecl VisitFriendDecl(FriendDecl *D); |
519 | ExpectedDecl VisitObjCIvarDecl(ObjCIvarDecl *D); |
520 | ExpectedDecl VisitVarDecl(VarDecl *D); |
521 | ExpectedDecl VisitImplicitParamDecl(ImplicitParamDecl *D); |
522 | ExpectedDecl VisitParmVarDecl(ParmVarDecl *D); |
523 | ExpectedDecl VisitObjCMethodDecl(ObjCMethodDecl *D); |
524 | ExpectedDecl VisitObjCTypeParamDecl(ObjCTypeParamDecl *D); |
525 | ExpectedDecl VisitObjCCategoryDecl(ObjCCategoryDecl *D); |
526 | ExpectedDecl VisitObjCProtocolDecl(ObjCProtocolDecl *D); |
527 | ExpectedDecl VisitLinkageSpecDecl(LinkageSpecDecl *D); |
528 | ExpectedDecl VisitUsingDecl(UsingDecl *D); |
529 | ExpectedDecl VisitUsingShadowDecl(UsingShadowDecl *D); |
530 | ExpectedDecl VisitUsingDirectiveDecl(UsingDirectiveDecl *D); |
531 | ExpectedDecl ImportUsingShadowDecls(BaseUsingDecl *D, BaseUsingDecl *ToSI); |
532 | ExpectedDecl VisitUsingEnumDecl(UsingEnumDecl *D); |
533 | ExpectedDecl VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); |
534 | ExpectedDecl VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); |
535 | ExpectedDecl VisitBuiltinTemplateDecl(BuiltinTemplateDecl *D); |
536 | ExpectedDecl |
537 | VisitLifetimeExtendedTemporaryDecl(LifetimeExtendedTemporaryDecl *D); |
538 | |
539 | Expected<ObjCTypeParamList *> |
540 | ImportObjCTypeParamList(ObjCTypeParamList *list); |
541 | |
542 | ExpectedDecl VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); |
543 | ExpectedDecl VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); |
544 | ExpectedDecl VisitObjCImplementationDecl(ObjCImplementationDecl *D); |
545 | ExpectedDecl VisitObjCPropertyDecl(ObjCPropertyDecl *D); |
546 | ExpectedDecl VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); |
547 | ExpectedDecl VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D); |
548 | ExpectedDecl VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D); |
549 | ExpectedDecl VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D); |
550 | ExpectedDecl VisitClassTemplateDecl(ClassTemplateDecl *D); |
551 | ExpectedDecl VisitClassTemplateSpecializationDecl( |
552 | ClassTemplateSpecializationDecl *D); |
553 | ExpectedDecl VisitVarTemplateDecl(VarTemplateDecl *D); |
554 | ExpectedDecl VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D); |
555 | ExpectedDecl VisitFunctionTemplateDecl(FunctionTemplateDecl *D); |
556 | |
557 | // Importing statements |
558 | ExpectedStmt VisitStmt(Stmt *S); |
559 | ExpectedStmt VisitGCCAsmStmt(GCCAsmStmt *S); |
560 | ExpectedStmt VisitDeclStmt(DeclStmt *S); |
561 | ExpectedStmt VisitNullStmt(NullStmt *S); |
562 | ExpectedStmt VisitCompoundStmt(CompoundStmt *S); |
563 | ExpectedStmt VisitCaseStmt(CaseStmt *S); |
564 | ExpectedStmt VisitDefaultStmt(DefaultStmt *S); |
565 | ExpectedStmt VisitLabelStmt(LabelStmt *S); |
566 | ExpectedStmt VisitAttributedStmt(AttributedStmt *S); |
567 | ExpectedStmt VisitIfStmt(IfStmt *S); |
568 | ExpectedStmt VisitSwitchStmt(SwitchStmt *S); |
569 | ExpectedStmt VisitWhileStmt(WhileStmt *S); |
570 | ExpectedStmt VisitDoStmt(DoStmt *S); |
571 | ExpectedStmt VisitForStmt(ForStmt *S); |
572 | ExpectedStmt VisitGotoStmt(GotoStmt *S); |
573 | ExpectedStmt VisitIndirectGotoStmt(IndirectGotoStmt *S); |
574 | ExpectedStmt VisitContinueStmt(ContinueStmt *S); |
575 | ExpectedStmt VisitBreakStmt(BreakStmt *S); |
576 | ExpectedStmt VisitReturnStmt(ReturnStmt *S); |
577 | // FIXME: MSAsmStmt |
578 | // FIXME: SEHExceptStmt |
579 | // FIXME: SEHFinallyStmt |
580 | // FIXME: SEHTryStmt |
581 | // FIXME: SEHLeaveStmt |
582 | // FIXME: CapturedStmt |
583 | ExpectedStmt VisitCXXCatchStmt(CXXCatchStmt *S); |
584 | ExpectedStmt VisitCXXTryStmt(CXXTryStmt *S); |
585 | ExpectedStmt VisitCXXForRangeStmt(CXXForRangeStmt *S); |
586 | // FIXME: MSDependentExistsStmt |
587 | ExpectedStmt VisitObjCForCollectionStmt(ObjCForCollectionStmt *S); |
588 | ExpectedStmt VisitObjCAtCatchStmt(ObjCAtCatchStmt *S); |
589 | ExpectedStmt VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S); |
590 | ExpectedStmt VisitObjCAtTryStmt(ObjCAtTryStmt *S); |
591 | ExpectedStmt VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S); |
592 | ExpectedStmt VisitObjCAtThrowStmt(ObjCAtThrowStmt *S); |
593 | ExpectedStmt VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt *S); |
594 | |
595 | // Importing expressions |
596 | ExpectedStmt VisitExpr(Expr *E); |
597 | ExpectedStmt VisitSourceLocExpr(SourceLocExpr *E); |
598 | ExpectedStmt VisitVAArgExpr(VAArgExpr *E); |
599 | ExpectedStmt VisitChooseExpr(ChooseExpr *E); |
600 | ExpectedStmt VisitGNUNullExpr(GNUNullExpr *E); |
601 | ExpectedStmt VisitGenericSelectionExpr(GenericSelectionExpr *E); |
602 | ExpectedStmt VisitPredefinedExpr(PredefinedExpr *E); |
603 | ExpectedStmt VisitDeclRefExpr(DeclRefExpr *E); |
604 | ExpectedStmt VisitImplicitValueInitExpr(ImplicitValueInitExpr *E); |
605 | ExpectedStmt VisitDesignatedInitExpr(DesignatedInitExpr *E); |
606 | ExpectedStmt VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E); |
607 | ExpectedStmt VisitIntegerLiteral(IntegerLiteral *E); |
608 | ExpectedStmt VisitFloatingLiteral(FloatingLiteral *E); |
609 | ExpectedStmt VisitImaginaryLiteral(ImaginaryLiteral *E); |
610 | ExpectedStmt VisitFixedPointLiteral(FixedPointLiteral *E); |
611 | ExpectedStmt VisitCharacterLiteral(CharacterLiteral *E); |
612 | ExpectedStmt VisitStringLiteral(StringLiteral *E); |
613 | ExpectedStmt VisitCompoundLiteralExpr(CompoundLiteralExpr *E); |
614 | ExpectedStmt VisitAtomicExpr(AtomicExpr *E); |
615 | ExpectedStmt VisitAddrLabelExpr(AddrLabelExpr *E); |
616 | ExpectedStmt VisitConstantExpr(ConstantExpr *E); |
617 | ExpectedStmt VisitParenExpr(ParenExpr *E); |
618 | ExpectedStmt VisitParenListExpr(ParenListExpr *E); |
619 | ExpectedStmt VisitStmtExpr(StmtExpr *E); |
620 | ExpectedStmt VisitUnaryOperator(UnaryOperator *E); |
621 | ExpectedStmt VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *E); |
622 | ExpectedStmt VisitBinaryOperator(BinaryOperator *E); |
623 | ExpectedStmt VisitConditionalOperator(ConditionalOperator *E); |
624 | ExpectedStmt VisitBinaryConditionalOperator(BinaryConditionalOperator *E); |
625 | ExpectedStmt VisitOpaqueValueExpr(OpaqueValueExpr *E); |
626 | ExpectedStmt VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E); |
627 | ExpectedStmt VisitExpressionTraitExpr(ExpressionTraitExpr *E); |
628 | ExpectedStmt VisitArraySubscriptExpr(ArraySubscriptExpr *E); |
629 | ExpectedStmt VisitCompoundAssignOperator(CompoundAssignOperator *E); |
630 | ExpectedStmt VisitImplicitCastExpr(ImplicitCastExpr *E); |
631 | ExpectedStmt VisitExplicitCastExpr(ExplicitCastExpr *E); |
632 | ExpectedStmt VisitOffsetOfExpr(OffsetOfExpr *OE); |
633 | ExpectedStmt VisitCXXThrowExpr(CXXThrowExpr *E); |
634 | ExpectedStmt VisitCXXNoexceptExpr(CXXNoexceptExpr *E); |
635 | ExpectedStmt VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E); |
636 | ExpectedStmt VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E); |
637 | ExpectedStmt VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E); |
638 | ExpectedStmt VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E); |
639 | ExpectedStmt VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E); |
640 | ExpectedStmt VisitPackExpansionExpr(PackExpansionExpr *E); |
641 | ExpectedStmt VisitSizeOfPackExpr(SizeOfPackExpr *E); |
642 | ExpectedStmt VisitCXXNewExpr(CXXNewExpr *E); |
643 | ExpectedStmt VisitCXXDeleteExpr(CXXDeleteExpr *E); |
644 | ExpectedStmt VisitCXXConstructExpr(CXXConstructExpr *E); |
645 | ExpectedStmt VisitCXXMemberCallExpr(CXXMemberCallExpr *E); |
646 | ExpectedStmt VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E); |
647 | ExpectedStmt VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E); |
648 | ExpectedStmt VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E); |
649 | ExpectedStmt VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E); |
650 | ExpectedStmt VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E); |
651 | ExpectedStmt VisitExprWithCleanups(ExprWithCleanups *E); |
652 | ExpectedStmt VisitCXXThisExpr(CXXThisExpr *E); |
653 | ExpectedStmt VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E); |
654 | ExpectedStmt VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E); |
655 | ExpectedStmt VisitMemberExpr(MemberExpr *E); |
656 | ExpectedStmt VisitCallExpr(CallExpr *E); |
657 | ExpectedStmt VisitLambdaExpr(LambdaExpr *LE); |
658 | ExpectedStmt VisitInitListExpr(InitListExpr *E); |
659 | ExpectedStmt VisitCXXStdInitializerListExpr(CXXStdInitializerListExpr *E); |
660 | ExpectedStmt VisitCXXInheritedCtorInitExpr(CXXInheritedCtorInitExpr *E); |
661 | ExpectedStmt VisitArrayInitLoopExpr(ArrayInitLoopExpr *E); |
662 | ExpectedStmt VisitArrayInitIndexExpr(ArrayInitIndexExpr *E); |
663 | ExpectedStmt VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E); |
664 | ExpectedStmt VisitCXXNamedCastExpr(CXXNamedCastExpr *E); |
665 | ExpectedStmt VisitSubstNonTypeTemplateParmExpr(SubstNonTypeTemplateParmExpr *E); |
666 | ExpectedStmt VisitTypeTraitExpr(TypeTraitExpr *E); |
667 | ExpectedStmt VisitCXXTypeidExpr(CXXTypeidExpr *E); |
668 | ExpectedStmt VisitCXXFoldExpr(CXXFoldExpr *E); |
669 | |
670 | template<typename IIter, typename OIter> |
671 | Error ImportArrayChecked(IIter Ibegin, IIter Iend, OIter Obegin) { |
672 | using ItemT = std::remove_reference_t<decltype(*Obegin)>; |
673 | for (; Ibegin != Iend; ++Ibegin, ++Obegin) { |
674 | Expected<ItemT> ToOrErr = import(*Ibegin); |
675 | if (!ToOrErr) |
676 | return ToOrErr.takeError(); |
677 | *Obegin = *ToOrErr; |
678 | } |
679 | return Error::success(); |
680 | } |
681 | |
682 | // Import every item from a container structure into an output container. |
683 | // If error occurs, stops at first error and returns the error. |
684 | // The output container should have space for all needed elements (it is not |
685 | // expanded, new items are put into from the beginning). |
686 | template<typename InContainerTy, typename OutContainerTy> |
687 | Error ImportContainerChecked( |
688 | const InContainerTy &InContainer, OutContainerTy &OutContainer) { |
689 | return ImportArrayChecked( |
690 | InContainer.begin(), InContainer.end(), OutContainer.begin()); |
691 | } |
692 | |
693 | template<typename InContainerTy, typename OIter> |
694 | Error ImportArrayChecked(const InContainerTy &InContainer, OIter Obegin) { |
695 | return ImportArrayChecked(InContainer.begin(), InContainer.end(), Obegin); |
696 | } |
697 | |
698 | Error ImportOverriddenMethods(CXXMethodDecl *ToMethod, |
699 | CXXMethodDecl *FromMethod); |
700 | |
701 | Expected<FunctionDecl *> FindFunctionTemplateSpecialization( |
702 | FunctionDecl *FromFD); |
703 | |
704 | // Returns true if the given function has a placeholder return type and |
705 | // that type is declared inside the body of the function. |
706 | // E.g. auto f() { struct X{}; return X(); } |
707 | bool hasAutoReturnTypeDeclaredInside(FunctionDecl *D); |
708 | }; |
709 | |
710 | template <typename InContainerTy> |
711 | Error ASTNodeImporter::ImportTemplateArgumentListInfo( |
712 | SourceLocation FromLAngleLoc, SourceLocation FromRAngleLoc, |
713 | const InContainerTy &Container, TemplateArgumentListInfo &Result) { |
714 | auto ToLAngleLocOrErr = import(FromLAngleLoc); |
715 | if (!ToLAngleLocOrErr) |
716 | return ToLAngleLocOrErr.takeError(); |
717 | auto ToRAngleLocOrErr = import(FromRAngleLoc); |
718 | if (!ToRAngleLocOrErr) |
719 | return ToRAngleLocOrErr.takeError(); |
720 | |
721 | TemplateArgumentListInfo ToTAInfo(*ToLAngleLocOrErr, *ToRAngleLocOrErr); |
722 | if (auto Err = ImportTemplateArgumentListInfo(Container, ToTAInfo)) |
723 | return Err; |
724 | Result = ToTAInfo; |
725 | return Error::success(); |
726 | } |
727 | |
728 | template <> |
729 | Error ASTNodeImporter::ImportTemplateArgumentListInfo<TemplateArgumentListInfo>( |
730 | const TemplateArgumentListInfo &From, TemplateArgumentListInfo &Result) { |
731 | return ImportTemplateArgumentListInfo( |
732 | From.getLAngleLoc(), From.getRAngleLoc(), From.arguments(), Result); |
733 | } |
734 | |
735 | template <> |
736 | Error ASTNodeImporter::ImportTemplateArgumentListInfo< |
737 | ASTTemplateArgumentListInfo>( |
738 | const ASTTemplateArgumentListInfo &From, |
739 | TemplateArgumentListInfo &Result) { |
740 | return ImportTemplateArgumentListInfo( |
741 | From.LAngleLoc, From.RAngleLoc, From.arguments(), Result); |
742 | } |
743 | |
744 | Expected<ASTNodeImporter::FunctionTemplateAndArgsTy> |
745 | ASTNodeImporter::ImportFunctionTemplateWithTemplateArgsFromSpecialization( |
746 | FunctionDecl *FromFD) { |
747 | assert(FromFD->getTemplatedKind() ==((void)0) |
748 | FunctionDecl::TK_FunctionTemplateSpecialization)((void)0); |
749 | |
750 | FunctionTemplateAndArgsTy Result; |
751 | |
752 | auto *FTSInfo = FromFD->getTemplateSpecializationInfo(); |
753 | if (Error Err = importInto(std::get<0>(Result), FTSInfo->getTemplate())) |
754 | return std::move(Err); |
755 | |
756 | // Import template arguments. |
757 | auto TemplArgs = FTSInfo->TemplateArguments->asArray(); |
758 | if (Error Err = ImportTemplateArguments(TemplArgs.data(), TemplArgs.size(), |
759 | std::get<1>(Result))) |
760 | return std::move(Err); |
761 | |
762 | return Result; |
763 | } |
764 | |
765 | template <> |
766 | Expected<TemplateParameterList *> |
767 | ASTNodeImporter::import(TemplateParameterList *From) { |
768 | SmallVector<NamedDecl *, 4> To(From->size()); |
769 | if (Error Err = ImportContainerChecked(*From, To)) |
770 | return std::move(Err); |
771 | |
772 | ExpectedExpr ToRequiresClause = import(From->getRequiresClause()); |
773 | if (!ToRequiresClause) |
774 | return ToRequiresClause.takeError(); |
775 | |
776 | auto ToTemplateLocOrErr = import(From->getTemplateLoc()); |
777 | if (!ToTemplateLocOrErr) |
778 | return ToTemplateLocOrErr.takeError(); |
779 | auto ToLAngleLocOrErr = import(From->getLAngleLoc()); |
780 | if (!ToLAngleLocOrErr) |
781 | return ToLAngleLocOrErr.takeError(); |
782 | auto ToRAngleLocOrErr = import(From->getRAngleLoc()); |
783 | if (!ToRAngleLocOrErr) |
784 | return ToRAngleLocOrErr.takeError(); |
785 | |
786 | return TemplateParameterList::Create( |
787 | Importer.getToContext(), |
788 | *ToTemplateLocOrErr, |
789 | *ToLAngleLocOrErr, |
790 | To, |
791 | *ToRAngleLocOrErr, |
792 | *ToRequiresClause); |
793 | } |
794 | |
795 | template <> |
796 | Expected<TemplateArgument> |
797 | ASTNodeImporter::import(const TemplateArgument &From) { |
798 | switch (From.getKind()) { |
799 | case TemplateArgument::Null: |
800 | return TemplateArgument(); |
801 | |
802 | case TemplateArgument::Type: { |
803 | ExpectedType ToTypeOrErr = import(From.getAsType()); |
804 | if (!ToTypeOrErr) |
805 | return ToTypeOrErr.takeError(); |
806 | return TemplateArgument(*ToTypeOrErr); |
807 | } |
808 | |
809 | case TemplateArgument::Integral: { |
810 | ExpectedType ToTypeOrErr = import(From.getIntegralType()); |
811 | if (!ToTypeOrErr) |
812 | return ToTypeOrErr.takeError(); |
813 | return TemplateArgument(From, *ToTypeOrErr); |
814 | } |
815 | |
816 | case TemplateArgument::Declaration: { |
817 | Expected<ValueDecl *> ToOrErr = import(From.getAsDecl()); |
818 | if (!ToOrErr) |
819 | return ToOrErr.takeError(); |
820 | ExpectedType ToTypeOrErr = import(From.getParamTypeForDecl()); |
821 | if (!ToTypeOrErr) |
822 | return ToTypeOrErr.takeError(); |
823 | return TemplateArgument(*ToOrErr, *ToTypeOrErr); |
824 | } |
825 | |
826 | case TemplateArgument::NullPtr: { |
827 | ExpectedType ToTypeOrErr = import(From.getNullPtrType()); |
828 | if (!ToTypeOrErr) |
829 | return ToTypeOrErr.takeError(); |
830 | return TemplateArgument(*ToTypeOrErr, /*isNullPtr*/true); |
831 | } |
832 | |
833 | case TemplateArgument::Template: { |
834 | Expected<TemplateName> ToTemplateOrErr = import(From.getAsTemplate()); |
835 | if (!ToTemplateOrErr) |
836 | return ToTemplateOrErr.takeError(); |
837 | |
838 | return TemplateArgument(*ToTemplateOrErr); |
839 | } |
840 | |
841 | case TemplateArgument::TemplateExpansion: { |
842 | Expected<TemplateName> ToTemplateOrErr = |
843 | import(From.getAsTemplateOrTemplatePattern()); |
844 | if (!ToTemplateOrErr) |
845 | return ToTemplateOrErr.takeError(); |
846 | |
847 | return TemplateArgument( |
848 | *ToTemplateOrErr, From.getNumTemplateExpansions()); |
849 | } |
850 | |
851 | case TemplateArgument::Expression: |
852 | if (ExpectedExpr ToExpr = import(From.getAsExpr())) |
853 | return TemplateArgument(*ToExpr); |
854 | else |
855 | return ToExpr.takeError(); |
856 | |
857 | case TemplateArgument::Pack: { |
858 | SmallVector<TemplateArgument, 2> ToPack; |
859 | ToPack.reserve(From.pack_size()); |
860 | if (Error Err = ImportTemplateArguments( |
861 | From.pack_begin(), From.pack_size(), ToPack)) |
862 | return std::move(Err); |
863 | |
864 | return TemplateArgument( |
865 | llvm::makeArrayRef(ToPack).copy(Importer.getToContext())); |
866 | } |
867 | } |
868 | |
869 | llvm_unreachable("Invalid template argument kind")__builtin_unreachable(); |
870 | } |
871 | |
872 | template <> |
873 | Expected<TemplateArgumentLoc> |
874 | ASTNodeImporter::import(const TemplateArgumentLoc &TALoc) { |
875 | Expected<TemplateArgument> ArgOrErr = import(TALoc.getArgument()); |
876 | if (!ArgOrErr) |
877 | return ArgOrErr.takeError(); |
878 | TemplateArgument Arg = *ArgOrErr; |
879 | |
880 | TemplateArgumentLocInfo FromInfo = TALoc.getLocInfo(); |
881 | |
882 | TemplateArgumentLocInfo ToInfo; |
883 | if (Arg.getKind() == TemplateArgument::Expression) { |
884 | ExpectedExpr E = import(FromInfo.getAsExpr()); |
885 | if (!E) |
886 | return E.takeError(); |
887 | ToInfo = TemplateArgumentLocInfo(*E); |
888 | } else if (Arg.getKind() == TemplateArgument::Type) { |
889 | if (auto TSIOrErr = import(FromInfo.getAsTypeSourceInfo())) |
890 | ToInfo = TemplateArgumentLocInfo(*TSIOrErr); |
891 | else |
892 | return TSIOrErr.takeError(); |
893 | } else { |
894 | auto ToTemplateQualifierLocOrErr = |
895 | import(FromInfo.getTemplateQualifierLoc()); |
896 | if (!ToTemplateQualifierLocOrErr) |
897 | return ToTemplateQualifierLocOrErr.takeError(); |
898 | auto ToTemplateNameLocOrErr = import(FromInfo.getTemplateNameLoc()); |
899 | if (!ToTemplateNameLocOrErr) |
900 | return ToTemplateNameLocOrErr.takeError(); |
901 | auto ToTemplateEllipsisLocOrErr = |
902 | import(FromInfo.getTemplateEllipsisLoc()); |
903 | if (!ToTemplateEllipsisLocOrErr) |
904 | return ToTemplateEllipsisLocOrErr.takeError(); |
905 | ToInfo = TemplateArgumentLocInfo( |
906 | Importer.getToContext(), *ToTemplateQualifierLocOrErr, |
907 | *ToTemplateNameLocOrErr, *ToTemplateEllipsisLocOrErr); |
908 | } |
909 | |
910 | return TemplateArgumentLoc(Arg, ToInfo); |
911 | } |
912 | |
913 | template <> |
914 | Expected<DeclGroupRef> ASTNodeImporter::import(const DeclGroupRef &DG) { |
915 | if (DG.isNull()) |
916 | return DeclGroupRef::Create(Importer.getToContext(), nullptr, 0); |
917 | size_t NumDecls = DG.end() - DG.begin(); |
918 | SmallVector<Decl *, 1> ToDecls; |
919 | ToDecls.reserve(NumDecls); |
920 | for (Decl *FromD : DG) { |
921 | if (auto ToDOrErr = import(FromD)) |
922 | ToDecls.push_back(*ToDOrErr); |
923 | else |
924 | return ToDOrErr.takeError(); |
925 | } |
926 | return DeclGroupRef::Create(Importer.getToContext(), |
927 | ToDecls.begin(), |
928 | NumDecls); |
929 | } |
930 | |
931 | template <> |
932 | Expected<ASTNodeImporter::Designator> |
933 | ASTNodeImporter::import(const Designator &D) { |
934 | if (D.isFieldDesignator()) { |
935 | IdentifierInfo *ToFieldName = Importer.Import(D.getFieldName()); |
936 | |
937 | ExpectedSLoc ToDotLocOrErr = import(D.getDotLoc()); |
938 | if (!ToDotLocOrErr) |
939 | return ToDotLocOrErr.takeError(); |
940 | |
941 | ExpectedSLoc ToFieldLocOrErr = import(D.getFieldLoc()); |
942 | if (!ToFieldLocOrErr) |
943 | return ToFieldLocOrErr.takeError(); |
944 | |
945 | return Designator(ToFieldName, *ToDotLocOrErr, *ToFieldLocOrErr); |
946 | } |
947 | |
948 | ExpectedSLoc ToLBracketLocOrErr = import(D.getLBracketLoc()); |
949 | if (!ToLBracketLocOrErr) |
950 | return ToLBracketLocOrErr.takeError(); |
951 | |
952 | ExpectedSLoc ToRBracketLocOrErr = import(D.getRBracketLoc()); |
953 | if (!ToRBracketLocOrErr) |
954 | return ToRBracketLocOrErr.takeError(); |
955 | |
956 | if (D.isArrayDesignator()) |
957 | return Designator(D.getFirstExprIndex(), |
958 | *ToLBracketLocOrErr, *ToRBracketLocOrErr); |
959 | |
960 | ExpectedSLoc ToEllipsisLocOrErr = import(D.getEllipsisLoc()); |
961 | if (!ToEllipsisLocOrErr) |
962 | return ToEllipsisLocOrErr.takeError(); |
963 | |
964 | assert(D.isArrayRangeDesignator())((void)0); |
965 | return Designator( |
966 | D.getFirstExprIndex(), *ToLBracketLocOrErr, *ToEllipsisLocOrErr, |
967 | *ToRBracketLocOrErr); |
968 | } |
969 | |
970 | template <> |
971 | Expected<LambdaCapture> ASTNodeImporter::import(const LambdaCapture &From) { |
972 | VarDecl *Var = nullptr; |
973 | if (From.capturesVariable()) { |
974 | if (auto VarOrErr = import(From.getCapturedVar())) |
975 | Var = *VarOrErr; |
976 | else |
977 | return VarOrErr.takeError(); |
978 | } |
979 | |
980 | auto LocationOrErr = import(From.getLocation()); |
981 | if (!LocationOrErr) |
982 | return LocationOrErr.takeError(); |
983 | |
984 | SourceLocation EllipsisLoc; |
985 | if (From.isPackExpansion()) |
986 | if (Error Err = importInto(EllipsisLoc, From.getEllipsisLoc())) |
987 | return std::move(Err); |
988 | |
989 | return LambdaCapture( |
990 | *LocationOrErr, From.isImplicit(), From.getCaptureKind(), Var, |
991 | EllipsisLoc); |
992 | } |
993 | |
994 | template <typename T> |
995 | bool ASTNodeImporter::hasSameVisibilityContextAndLinkage(T *Found, T *From) { |
996 | if (Found->getLinkageInternal() != From->getLinkageInternal()) |
997 | return false; |
998 | |
999 | if (From->hasExternalFormalLinkage()) |
1000 | return Found->hasExternalFormalLinkage(); |
1001 | if (Importer.GetFromTU(Found) != From->getTranslationUnitDecl()) |
1002 | return false; |
1003 | if (From->isInAnonymousNamespace()) |
1004 | return Found->isInAnonymousNamespace(); |
1005 | else |
1006 | return !Found->isInAnonymousNamespace() && |
1007 | !Found->hasExternalFormalLinkage(); |
1008 | } |
1009 | |
1010 | template <> |
1011 | bool ASTNodeImporter::hasSameVisibilityContextAndLinkage(TypedefNameDecl *Found, |
1012 | TypedefNameDecl *From) { |
1013 | if (Found->getLinkageInternal() != From->getLinkageInternal()) |
1014 | return false; |
1015 | |
1016 | if (From->isInAnonymousNamespace() && Found->isInAnonymousNamespace()) |
1017 | return Importer.GetFromTU(Found) == From->getTranslationUnitDecl(); |
1018 | return From->isInAnonymousNamespace() == Found->isInAnonymousNamespace(); |
1019 | } |
1020 | |
1021 | } // namespace clang |
1022 | |
1023 | //---------------------------------------------------------------------------- |
1024 | // Import Types |
1025 | //---------------------------------------------------------------------------- |
1026 | |
1027 | using namespace clang; |
1028 | |
1029 | ExpectedType ASTNodeImporter::VisitType(const Type *T) { |
1030 | Importer.FromDiag(SourceLocation(), diag::err_unsupported_ast_node) |
1031 | << T->getTypeClassName(); |
1032 | return make_error<ImportError>(ImportError::UnsupportedConstruct); |
1033 | } |
1034 | |
1035 | ExpectedType ASTNodeImporter::VisitAtomicType(const AtomicType *T){ |
1036 | ExpectedType UnderlyingTypeOrErr = import(T->getValueType()); |
1037 | if (!UnderlyingTypeOrErr) |
1038 | return UnderlyingTypeOrErr.takeError(); |
1039 | |
1040 | return Importer.getToContext().getAtomicType(*UnderlyingTypeOrErr); |
1041 | } |
1042 | |
1043 | ExpectedType ASTNodeImporter::VisitBuiltinType(const BuiltinType *T) { |
1044 | switch (T->getKind()) { |
1045 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ |
1046 | case BuiltinType::Id: \ |
1047 | return Importer.getToContext().SingletonId; |
1048 | #include "clang/Basic/OpenCLImageTypes.def" |
1049 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ |
1050 | case BuiltinType::Id: \ |
1051 | return Importer.getToContext().Id##Ty; |
1052 | #include "clang/Basic/OpenCLExtensionTypes.def" |
1053 | #define SVE_TYPE(Name, Id, SingletonId) \ |
1054 | case BuiltinType::Id: \ |
1055 | return Importer.getToContext().SingletonId; |
1056 | #include "clang/Basic/AArch64SVEACLETypes.def" |
1057 | #define PPC_VECTOR_TYPE(Name, Id, Size) \ |
1058 | case BuiltinType::Id: \ |
1059 | return Importer.getToContext().Id##Ty; |
1060 | #include "clang/Basic/PPCTypes.def" |
1061 | #define RVV_TYPE(Name, Id, SingletonId) \ |
1062 | case BuiltinType::Id: \ |
1063 | return Importer.getToContext().SingletonId; |
1064 | #include "clang/Basic/RISCVVTypes.def" |
1065 | #define SHARED_SINGLETON_TYPE(Expansion) |
1066 | #define BUILTIN_TYPE(Id, SingletonId) \ |
1067 | case BuiltinType::Id: return Importer.getToContext().SingletonId; |
1068 | #include "clang/AST/BuiltinTypes.def" |
1069 | |
1070 | // FIXME: for Char16, Char32, and NullPtr, make sure that the "to" |
1071 | // context supports C++. |
1072 | |
1073 | // FIXME: for ObjCId, ObjCClass, and ObjCSel, make sure that the "to" |
1074 | // context supports ObjC. |
1075 | |
1076 | case BuiltinType::Char_U: |
1077 | // The context we're importing from has an unsigned 'char'. If we're |
1078 | // importing into a context with a signed 'char', translate to |
1079 | // 'unsigned char' instead. |
1080 | if (Importer.getToContext().getLangOpts().CharIsSigned) |
1081 | return Importer.getToContext().UnsignedCharTy; |
1082 | |
1083 | return Importer.getToContext().CharTy; |
1084 | |
1085 | case BuiltinType::Char_S: |
1086 | // The context we're importing from has an unsigned 'char'. If we're |
1087 | // importing into a context with a signed 'char', translate to |
1088 | // 'unsigned char' instead. |
1089 | if (!Importer.getToContext().getLangOpts().CharIsSigned) |
1090 | return Importer.getToContext().SignedCharTy; |
1091 | |
1092 | return Importer.getToContext().CharTy; |
1093 | |
1094 | case BuiltinType::WChar_S: |
1095 | case BuiltinType::WChar_U: |
1096 | // FIXME: If not in C++, shall we translate to the C equivalent of |
1097 | // wchar_t? |
1098 | return Importer.getToContext().WCharTy; |
1099 | } |
1100 | |
1101 | llvm_unreachable("Invalid BuiltinType Kind!")__builtin_unreachable(); |
1102 | } |
1103 | |
1104 | ExpectedType ASTNodeImporter::VisitDecayedType(const DecayedType *T) { |
1105 | ExpectedType ToOriginalTypeOrErr = import(T->getOriginalType()); |
1106 | if (!ToOriginalTypeOrErr) |
1107 | return ToOriginalTypeOrErr.takeError(); |
1108 | |
1109 | return Importer.getToContext().getDecayedType(*ToOriginalTypeOrErr); |
1110 | } |
1111 | |
1112 | ExpectedType ASTNodeImporter::VisitComplexType(const ComplexType *T) { |
1113 | ExpectedType ToElementTypeOrErr = import(T->getElementType()); |
1114 | if (!ToElementTypeOrErr) |
1115 | return ToElementTypeOrErr.takeError(); |
1116 | |
1117 | return Importer.getToContext().getComplexType(*ToElementTypeOrErr); |
1118 | } |
1119 | |
1120 | ExpectedType ASTNodeImporter::VisitPointerType(const PointerType *T) { |
1121 | ExpectedType ToPointeeTypeOrErr = import(T->getPointeeType()); |
1122 | if (!ToPointeeTypeOrErr) |
1123 | return ToPointeeTypeOrErr.takeError(); |
1124 | |
1125 | return Importer.getToContext().getPointerType(*ToPointeeTypeOrErr); |
1126 | } |
1127 | |
1128 | ExpectedType ASTNodeImporter::VisitBlockPointerType(const BlockPointerType *T) { |
1129 | // FIXME: Check for blocks support in "to" context. |
1130 | ExpectedType ToPointeeTypeOrErr = import(T->getPointeeType()); |
1131 | if (!ToPointeeTypeOrErr) |
1132 | return ToPointeeTypeOrErr.takeError(); |
1133 | |
1134 | return Importer.getToContext().getBlockPointerType(*ToPointeeTypeOrErr); |
1135 | } |
1136 | |
1137 | ExpectedType |
1138 | ASTNodeImporter::VisitLValueReferenceType(const LValueReferenceType *T) { |
1139 | // FIXME: Check for C++ support in "to" context. |
1140 | ExpectedType ToPointeeTypeOrErr = import(T->getPointeeTypeAsWritten()); |
1141 | if (!ToPointeeTypeOrErr) |
1142 | return ToPointeeTypeOrErr.takeError(); |
1143 | |
1144 | return Importer.getToContext().getLValueReferenceType(*ToPointeeTypeOrErr); |
1145 | } |
1146 | |
1147 | ExpectedType |
1148 | ASTNodeImporter::VisitRValueReferenceType(const RValueReferenceType *T) { |
1149 | // FIXME: Check for C++0x support in "to" context. |
1150 | ExpectedType ToPointeeTypeOrErr = import(T->getPointeeTypeAsWritten()); |
1151 | if (!ToPointeeTypeOrErr) |
1152 | return ToPointeeTypeOrErr.takeError(); |
1153 | |
1154 | return Importer.getToContext().getRValueReferenceType(*ToPointeeTypeOrErr); |
1155 | } |
1156 | |
1157 | ExpectedType |
1158 | ASTNodeImporter::VisitMemberPointerType(const MemberPointerType *T) { |
1159 | // FIXME: Check for C++ support in "to" context. |
1160 | ExpectedType ToPointeeTypeOrErr = import(T->getPointeeType()); |
1161 | if (!ToPointeeTypeOrErr) |
1162 | return ToPointeeTypeOrErr.takeError(); |
1163 | |
1164 | ExpectedType ClassTypeOrErr = import(QualType(T->getClass(), 0)); |
1165 | if (!ClassTypeOrErr) |
1166 | return ClassTypeOrErr.takeError(); |
1167 | |
1168 | return Importer.getToContext().getMemberPointerType( |
1169 | *ToPointeeTypeOrErr, (*ClassTypeOrErr).getTypePtr()); |
1170 | } |
1171 | |
1172 | ExpectedType |
1173 | ASTNodeImporter::VisitConstantArrayType(const ConstantArrayType *T) { |
1174 | Error Err = Error::success(); |
1175 | auto ToElementType = importChecked(Err, T->getElementType()); |
1176 | auto ToSizeExpr = importChecked(Err, T->getSizeExpr()); |
1177 | if (Err) |
1178 | return std::move(Err); |
1179 | |
1180 | return Importer.getToContext().getConstantArrayType( |
1181 | ToElementType, T->getSize(), ToSizeExpr, T->getSizeModifier(), |
1182 | T->getIndexTypeCVRQualifiers()); |
1183 | } |
1184 | |
1185 | ExpectedType |
1186 | ASTNodeImporter::VisitIncompleteArrayType(const IncompleteArrayType *T) { |
1187 | ExpectedType ToElementTypeOrErr = import(T->getElementType()); |
1188 | if (!ToElementTypeOrErr) |
1189 | return ToElementTypeOrErr.takeError(); |
1190 | |
1191 | return Importer.getToContext().getIncompleteArrayType(*ToElementTypeOrErr, |
1192 | T->getSizeModifier(), |
1193 | T->getIndexTypeCVRQualifiers()); |
1194 | } |
1195 | |
1196 | ExpectedType |
1197 | ASTNodeImporter::VisitVariableArrayType(const VariableArrayType *T) { |
1198 | Error Err = Error::success(); |
1199 | QualType ToElementType = importChecked(Err, T->getElementType()); |
1200 | Expr *ToSizeExpr = importChecked(Err, T->getSizeExpr()); |
1201 | SourceRange ToBracketsRange = importChecked(Err, T->getBracketsRange()); |
1202 | if (Err) |
1203 | return std::move(Err); |
1204 | return Importer.getToContext().getVariableArrayType( |
1205 | ToElementType, ToSizeExpr, T->getSizeModifier(), |
1206 | T->getIndexTypeCVRQualifiers(), ToBracketsRange); |
1207 | } |
1208 | |
1209 | ExpectedType ASTNodeImporter::VisitDependentSizedArrayType( |
1210 | const DependentSizedArrayType *T) { |
1211 | Error Err = Error::success(); |
1212 | QualType ToElementType = importChecked(Err, T->getElementType()); |
1213 | Expr *ToSizeExpr = importChecked(Err, T->getSizeExpr()); |
1214 | SourceRange ToBracketsRange = importChecked(Err, T->getBracketsRange()); |
1215 | if (Err) |
1216 | return std::move(Err); |
1217 | // SizeExpr may be null if size is not specified directly. |
1218 | // For example, 'int a[]'. |
1219 | |
1220 | return Importer.getToContext().getDependentSizedArrayType( |
1221 | ToElementType, ToSizeExpr, T->getSizeModifier(), |
1222 | T->getIndexTypeCVRQualifiers(), ToBracketsRange); |
1223 | } |
1224 | |
1225 | ExpectedType ASTNodeImporter::VisitVectorType(const VectorType *T) { |
1226 | ExpectedType ToElementTypeOrErr = import(T->getElementType()); |
1227 | if (!ToElementTypeOrErr) |
1228 | return ToElementTypeOrErr.takeError(); |
1229 | |
1230 | return Importer.getToContext().getVectorType(*ToElementTypeOrErr, |
1231 | T->getNumElements(), |
1232 | T->getVectorKind()); |
1233 | } |
1234 | |
1235 | ExpectedType ASTNodeImporter::VisitExtVectorType(const ExtVectorType *T) { |
1236 | ExpectedType ToElementTypeOrErr = import(T->getElementType()); |
1237 | if (!ToElementTypeOrErr) |
1238 | return ToElementTypeOrErr.takeError(); |
1239 | |
1240 | return Importer.getToContext().getExtVectorType(*ToElementTypeOrErr, |
1241 | T->getNumElements()); |
1242 | } |
1243 | |
1244 | ExpectedType |
1245 | ASTNodeImporter::VisitFunctionNoProtoType(const FunctionNoProtoType *T) { |
1246 | // FIXME: What happens if we're importing a function without a prototype |
1247 | // into C++? Should we make it variadic? |
1248 | ExpectedType ToReturnTypeOrErr = import(T->getReturnType()); |
1249 | if (!ToReturnTypeOrErr) |
1250 | return ToReturnTypeOrErr.takeError(); |
1251 | |
1252 | return Importer.getToContext().getFunctionNoProtoType(*ToReturnTypeOrErr, |
1253 | T->getExtInfo()); |
1254 | } |
1255 | |
1256 | ExpectedType |
1257 | ASTNodeImporter::VisitFunctionProtoType(const FunctionProtoType *T) { |
1258 | ExpectedType ToReturnTypeOrErr = import(T->getReturnType()); |
1259 | if (!ToReturnTypeOrErr) |
1260 | return ToReturnTypeOrErr.takeError(); |
1261 | |
1262 | // Import argument types |
1263 | SmallVector<QualType, 4> ArgTypes; |
1264 | for (const auto &A : T->param_types()) { |
1265 | ExpectedType TyOrErr = import(A); |
1266 | if (!TyOrErr) |
1267 | return TyOrErr.takeError(); |
1268 | ArgTypes.push_back(*TyOrErr); |
1269 | } |
1270 | |
1271 | // Import exception types |
1272 | SmallVector<QualType, 4> ExceptionTypes; |
1273 | for (const auto &E : T->exceptions()) { |
1274 | ExpectedType TyOrErr = import(E); |
1275 | if (!TyOrErr) |
1276 | return TyOrErr.takeError(); |
1277 | ExceptionTypes.push_back(*TyOrErr); |
1278 | } |
1279 | |
1280 | FunctionProtoType::ExtProtoInfo FromEPI = T->getExtProtoInfo(); |
1281 | Error Err = Error::success(); |
1282 | FunctionProtoType::ExtProtoInfo ToEPI; |
1283 | ToEPI.ExtInfo = FromEPI.ExtInfo; |
1284 | ToEPI.Variadic = FromEPI.Variadic; |
1285 | ToEPI.HasTrailingReturn = FromEPI.HasTrailingReturn; |
1286 | ToEPI.TypeQuals = FromEPI.TypeQuals; |
1287 | ToEPI.RefQualifier = FromEPI.RefQualifier; |
1288 | ToEPI.ExceptionSpec.Type = FromEPI.ExceptionSpec.Type; |
1289 | ToEPI.ExceptionSpec.NoexceptExpr = |
1290 | importChecked(Err, FromEPI.ExceptionSpec.NoexceptExpr); |
1291 | ToEPI.ExceptionSpec.SourceDecl = |
1292 | importChecked(Err, FromEPI.ExceptionSpec.SourceDecl); |
1293 | ToEPI.ExceptionSpec.SourceTemplate = |
1294 | importChecked(Err, FromEPI.ExceptionSpec.SourceTemplate); |
1295 | ToEPI.ExceptionSpec.Exceptions = ExceptionTypes; |
1296 | |
1297 | if (Err) |
1298 | return std::move(Err); |
1299 | |
1300 | return Importer.getToContext().getFunctionType( |
1301 | *ToReturnTypeOrErr, ArgTypes, ToEPI); |
1302 | } |
1303 | |
1304 | ExpectedType ASTNodeImporter::VisitUnresolvedUsingType( |
1305 | const UnresolvedUsingType *T) { |
1306 | Error Err = Error::success(); |
1307 | auto ToD = importChecked(Err, T->getDecl()); |
1308 | auto ToPrevD = importChecked(Err, T->getDecl()->getPreviousDecl()); |
1309 | if (Err) |
1310 | return std::move(Err); |
1311 | |
1312 | return Importer.getToContext().getTypeDeclType( |
1313 | ToD, cast_or_null<TypeDecl>(ToPrevD)); |
1314 | } |
1315 | |
1316 | ExpectedType ASTNodeImporter::VisitParenType(const ParenType *T) { |
1317 | ExpectedType ToInnerTypeOrErr = import(T->getInnerType()); |
1318 | if (!ToInnerTypeOrErr) |
1319 | return ToInnerTypeOrErr.takeError(); |
1320 | |
1321 | return Importer.getToContext().getParenType(*ToInnerTypeOrErr); |
1322 | } |
1323 | |
1324 | ExpectedType ASTNodeImporter::VisitTypedefType(const TypedefType *T) { |
1325 | Expected<TypedefNameDecl *> ToDeclOrErr = import(T->getDecl()); |
1326 | if (!ToDeclOrErr) |
1327 | return ToDeclOrErr.takeError(); |
1328 | |
1329 | return Importer.getToContext().getTypeDeclType(*ToDeclOrErr); |
1330 | } |
1331 | |
1332 | ExpectedType ASTNodeImporter::VisitTypeOfExprType(const TypeOfExprType *T) { |
1333 | ExpectedExpr ToExprOrErr = import(T->getUnderlyingExpr()); |
1334 | if (!ToExprOrErr) |
1335 | return ToExprOrErr.takeError(); |
1336 | |
1337 | return Importer.getToContext().getTypeOfExprType(*ToExprOrErr); |
1338 | } |
1339 | |
1340 | ExpectedType ASTNodeImporter::VisitTypeOfType(const TypeOfType *T) { |
1341 | ExpectedType ToUnderlyingTypeOrErr = import(T->getUnderlyingType()); |
1342 | if (!ToUnderlyingTypeOrErr) |
1343 | return ToUnderlyingTypeOrErr.takeError(); |
1344 | |
1345 | return Importer.getToContext().getTypeOfType(*ToUnderlyingTypeOrErr); |
1346 | } |
1347 | |
1348 | ExpectedType ASTNodeImporter::VisitDecltypeType(const DecltypeType *T) { |
1349 | // FIXME: Make sure that the "to" context supports C++0x! |
1350 | ExpectedExpr ToExprOrErr = import(T->getUnderlyingExpr()); |
1351 | if (!ToExprOrErr) |
1352 | return ToExprOrErr.takeError(); |
1353 | |
1354 | ExpectedType ToUnderlyingTypeOrErr = import(T->getUnderlyingType()); |
1355 | if (!ToUnderlyingTypeOrErr) |
1356 | return ToUnderlyingTypeOrErr.takeError(); |
1357 | |
1358 | return Importer.getToContext().getDecltypeType( |
1359 | *ToExprOrErr, *ToUnderlyingTypeOrErr); |
1360 | } |
1361 | |
1362 | ExpectedType |
1363 | ASTNodeImporter::VisitUnaryTransformType(const UnaryTransformType *T) { |
1364 | ExpectedType ToBaseTypeOrErr = import(T->getBaseType()); |
1365 | if (!ToBaseTypeOrErr) |
1366 | return ToBaseTypeOrErr.takeError(); |
1367 | |
1368 | ExpectedType ToUnderlyingTypeOrErr = import(T->getUnderlyingType()); |
1369 | if (!ToUnderlyingTypeOrErr) |
1370 | return ToUnderlyingTypeOrErr.takeError(); |
1371 | |
1372 | return Importer.getToContext().getUnaryTransformType( |
1373 | *ToBaseTypeOrErr, *ToUnderlyingTypeOrErr, T->getUTTKind()); |
1374 | } |
1375 | |
1376 | ExpectedType ASTNodeImporter::VisitAutoType(const AutoType *T) { |
1377 | // FIXME: Make sure that the "to" context supports C++11! |
1378 | ExpectedType ToDeducedTypeOrErr = import(T->getDeducedType()); |
1379 | if (!ToDeducedTypeOrErr) |
1380 | return ToDeducedTypeOrErr.takeError(); |
1381 | |
1382 | ExpectedDecl ToTypeConstraintConcept = import(T->getTypeConstraintConcept()); |
1383 | if (!ToTypeConstraintConcept) |
1384 | return ToTypeConstraintConcept.takeError(); |
1385 | |
1386 | SmallVector<TemplateArgument, 2> ToTemplateArgs; |
1387 | ArrayRef<TemplateArgument> FromTemplateArgs = T->getTypeConstraintArguments(); |
1388 | if (Error Err = ImportTemplateArguments(FromTemplateArgs.data(), |
1389 | FromTemplateArgs.size(), |
1390 | ToTemplateArgs)) |
1391 | return std::move(Err); |
1392 | |
1393 | return Importer.getToContext().getAutoType( |
1394 | *ToDeducedTypeOrErr, T->getKeyword(), /*IsDependent*/false, |
1395 | /*IsPack=*/false, cast_or_null<ConceptDecl>(*ToTypeConstraintConcept), |
1396 | ToTemplateArgs); |
1397 | } |
1398 | |
1399 | ExpectedType ASTNodeImporter::VisitDeducedTemplateSpecializationType( |
1400 | const DeducedTemplateSpecializationType *T) { |
1401 | // FIXME: Make sure that the "to" context supports C++17! |
1402 | Expected<TemplateName> ToTemplateNameOrErr = import(T->getTemplateName()); |
1403 | if (!ToTemplateNameOrErr) |
1404 | return ToTemplateNameOrErr.takeError(); |
1405 | ExpectedType ToDeducedTypeOrErr = import(T->getDeducedType()); |
1406 | if (!ToDeducedTypeOrErr) |
1407 | return ToDeducedTypeOrErr.takeError(); |
1408 | |
1409 | return Importer.getToContext().getDeducedTemplateSpecializationType( |
1410 | *ToTemplateNameOrErr, *ToDeducedTypeOrErr, T->isDependentType()); |
1411 | } |
1412 | |
1413 | ExpectedType ASTNodeImporter::VisitInjectedClassNameType( |
1414 | const InjectedClassNameType *T) { |
1415 | Expected<CXXRecordDecl *> ToDeclOrErr = import(T->getDecl()); |
1416 | if (!ToDeclOrErr) |
1417 | return ToDeclOrErr.takeError(); |
1418 | |
1419 | ExpectedType ToInjTypeOrErr = import(T->getInjectedSpecializationType()); |
1420 | if (!ToInjTypeOrErr) |
1421 | return ToInjTypeOrErr.takeError(); |
1422 | |
1423 | // FIXME: ASTContext::getInjectedClassNameType is not suitable for AST reading |
1424 | // See comments in InjectedClassNameType definition for details |
1425 | // return Importer.getToContext().getInjectedClassNameType(D, InjType); |
1426 | enum { |
1427 | TypeAlignmentInBits = 4, |
1428 | TypeAlignment = 1 << TypeAlignmentInBits |
1429 | }; |
1430 | |
1431 | return QualType(new (Importer.getToContext(), TypeAlignment) |
1432 | InjectedClassNameType(*ToDeclOrErr, *ToInjTypeOrErr), 0); |
1433 | } |
1434 | |
1435 | ExpectedType ASTNodeImporter::VisitRecordType(const RecordType *T) { |
1436 | Expected<RecordDecl *> ToDeclOrErr = import(T->getDecl()); |
1437 | if (!ToDeclOrErr) |
1438 | return ToDeclOrErr.takeError(); |
1439 | |
1440 | return Importer.getToContext().getTagDeclType(*ToDeclOrErr); |
1441 | } |
1442 | |
1443 | ExpectedType ASTNodeImporter::VisitEnumType(const EnumType *T) { |
1444 | Expected<EnumDecl *> ToDeclOrErr = import(T->getDecl()); |
1445 | if (!ToDeclOrErr) |
1446 | return ToDeclOrErr.takeError(); |
1447 | |
1448 | return Importer.getToContext().getTagDeclType(*ToDeclOrErr); |
1449 | } |
1450 | |
1451 | ExpectedType ASTNodeImporter::VisitAttributedType(const AttributedType *T) { |
1452 | ExpectedType ToModifiedTypeOrErr = import(T->getModifiedType()); |
1453 | if (!ToModifiedTypeOrErr) |
1454 | return ToModifiedTypeOrErr.takeError(); |
1455 | ExpectedType ToEquivalentTypeOrErr = import(T->getEquivalentType()); |
1456 | if (!ToEquivalentTypeOrErr) |
1457 | return ToEquivalentTypeOrErr.takeError(); |
1458 | |
1459 | return Importer.getToContext().getAttributedType(T->getAttrKind(), |
1460 | *ToModifiedTypeOrErr, *ToEquivalentTypeOrErr); |
1461 | } |
1462 | |
1463 | ExpectedType ASTNodeImporter::VisitTemplateTypeParmType( |
1464 | const TemplateTypeParmType *T) { |
1465 | Expected<TemplateTypeParmDecl *> ToDeclOrErr = import(T->getDecl()); |
1466 | if (!ToDeclOrErr) |
1467 | return ToDeclOrErr.takeError(); |
1468 | |
1469 | return Importer.getToContext().getTemplateTypeParmType( |
1470 | T->getDepth(), T->getIndex(), T->isParameterPack(), *ToDeclOrErr); |
1471 | } |
1472 | |
1473 | ExpectedType ASTNodeImporter::VisitSubstTemplateTypeParmType( |
1474 | const SubstTemplateTypeParmType *T) { |
1475 | ExpectedType ReplacedOrErr = import(QualType(T->getReplacedParameter(), 0)); |
1476 | if (!ReplacedOrErr) |
1477 | return ReplacedOrErr.takeError(); |
1478 | const TemplateTypeParmType *Replaced = |
1479 | cast<TemplateTypeParmType>((*ReplacedOrErr).getTypePtr()); |
1480 | |
1481 | ExpectedType ToReplacementTypeOrErr = import(T->getReplacementType()); |
1482 | if (!ToReplacementTypeOrErr) |
1483 | return ToReplacementTypeOrErr.takeError(); |
1484 | |
1485 | return Importer.getToContext().getSubstTemplateTypeParmType( |
1486 | Replaced, (*ToReplacementTypeOrErr).getCanonicalType()); |
1487 | } |
1488 | |
1489 | ExpectedType ASTNodeImporter::VisitTemplateSpecializationType( |
1490 | const TemplateSpecializationType *T) { |
1491 | auto ToTemplateOrErr = import(T->getTemplateName()); |
1492 | if (!ToTemplateOrErr) |
1493 | return ToTemplateOrErr.takeError(); |
1494 | |
1495 | SmallVector<TemplateArgument, 2> ToTemplateArgs; |
1496 | if (Error Err = ImportTemplateArguments( |
1497 | T->getArgs(), T->getNumArgs(), ToTemplateArgs)) |
1498 | return std::move(Err); |
1499 | |
1500 | QualType ToCanonType; |
1501 | if (!QualType(T, 0).isCanonical()) { |
1502 | QualType FromCanonType |
1503 | = Importer.getFromContext().getCanonicalType(QualType(T, 0)); |
1504 | if (ExpectedType TyOrErr = import(FromCanonType)) |
1505 | ToCanonType = *TyOrErr; |
1506 | else |
1507 | return TyOrErr.takeError(); |
1508 | } |
1509 | return Importer.getToContext().getTemplateSpecializationType(*ToTemplateOrErr, |
1510 | ToTemplateArgs, |
1511 | ToCanonType); |
1512 | } |
1513 | |
1514 | ExpectedType ASTNodeImporter::VisitElaboratedType(const ElaboratedType *T) { |
1515 | // Note: the qualifier in an ElaboratedType is optional. |
1516 | auto ToQualifierOrErr = import(T->getQualifier()); |
1517 | if (!ToQualifierOrErr) |
1518 | return ToQualifierOrErr.takeError(); |
1519 | |
1520 | ExpectedType ToNamedTypeOrErr = import(T->getNamedType()); |
1521 | if (!ToNamedTypeOrErr) |
1522 | return ToNamedTypeOrErr.takeError(); |
1523 | |
1524 | Expected<TagDecl *> ToOwnedTagDeclOrErr = import(T->getOwnedTagDecl()); |
1525 | if (!ToOwnedTagDeclOrErr) |
1526 | return ToOwnedTagDeclOrErr.takeError(); |
1527 | |
1528 | return Importer.getToContext().getElaboratedType(T->getKeyword(), |
1529 | *ToQualifierOrErr, |
1530 | *ToNamedTypeOrErr, |
1531 | *ToOwnedTagDeclOrErr); |
1532 | } |
1533 | |
1534 | ExpectedType |
1535 | ASTNodeImporter::VisitPackExpansionType(const PackExpansionType *T) { |
1536 | ExpectedType ToPatternOrErr = import(T->getPattern()); |
1537 | if (!ToPatternOrErr) |
1538 | return ToPatternOrErr.takeError(); |
1539 | |
1540 | return Importer.getToContext().getPackExpansionType(*ToPatternOrErr, |
1541 | T->getNumExpansions(), |
1542 | /*ExpactPack=*/false); |
1543 | } |
1544 | |
1545 | ExpectedType ASTNodeImporter::VisitDependentTemplateSpecializationType( |
1546 | const DependentTemplateSpecializationType *T) { |
1547 | auto ToQualifierOrErr = import(T->getQualifier()); |
1548 | if (!ToQualifierOrErr) |
1549 | return ToQualifierOrErr.takeError(); |
1550 | |
1551 | IdentifierInfo *ToName = Importer.Import(T->getIdentifier()); |
1552 | |
1553 | SmallVector<TemplateArgument, 2> ToPack; |
1554 | ToPack.reserve(T->getNumArgs()); |
1555 | if (Error Err = ImportTemplateArguments( |
1556 | T->getArgs(), T->getNumArgs(), ToPack)) |
1557 | return std::move(Err); |
1558 | |
1559 | return Importer.getToContext().getDependentTemplateSpecializationType( |
1560 | T->getKeyword(), *ToQualifierOrErr, ToName, ToPack); |
1561 | } |
1562 | |
1563 | ExpectedType |
1564 | ASTNodeImporter::VisitDependentNameType(const DependentNameType *T) { |
1565 | auto ToQualifierOrErr = import(T->getQualifier()); |
1566 | if (!ToQualifierOrErr) |
1567 | return ToQualifierOrErr.takeError(); |
1568 | |
1569 | IdentifierInfo *Name = Importer.Import(T->getIdentifier()); |
1570 | |
1571 | QualType Canon; |
1572 | if (T != T->getCanonicalTypeInternal().getTypePtr()) { |
1573 | if (ExpectedType TyOrErr = import(T->getCanonicalTypeInternal())) |
1574 | Canon = (*TyOrErr).getCanonicalType(); |
1575 | else |
1576 | return TyOrErr.takeError(); |
1577 | } |
1578 | |
1579 | return Importer.getToContext().getDependentNameType(T->getKeyword(), |
1580 | *ToQualifierOrErr, |
1581 | Name, Canon); |
1582 | } |
1583 | |
1584 | ExpectedType |
1585 | ASTNodeImporter::VisitObjCInterfaceType(const ObjCInterfaceType *T) { |
1586 | Expected<ObjCInterfaceDecl *> ToDeclOrErr = import(T->getDecl()); |
1587 | if (!ToDeclOrErr) |
1588 | return ToDeclOrErr.takeError(); |
1589 | |
1590 | return Importer.getToContext().getObjCInterfaceType(*ToDeclOrErr); |
1591 | } |
1592 | |
1593 | ExpectedType ASTNodeImporter::VisitObjCObjectType(const ObjCObjectType *T) { |
1594 | ExpectedType ToBaseTypeOrErr = import(T->getBaseType()); |
1595 | if (!ToBaseTypeOrErr) |
1596 | return ToBaseTypeOrErr.takeError(); |
1597 | |
1598 | SmallVector<QualType, 4> TypeArgs; |
1599 | for (auto TypeArg : T->getTypeArgsAsWritten()) { |
1600 | if (ExpectedType TyOrErr = import(TypeArg)) |
1601 | TypeArgs.push_back(*TyOrErr); |
1602 | else |
1603 | return TyOrErr.takeError(); |
1604 | } |
1605 | |
1606 | SmallVector<ObjCProtocolDecl *, 4> Protocols; |
1607 | for (auto *P : T->quals()) { |
1608 | if (Expected<ObjCProtocolDecl *> ProtocolOrErr = import(P)) |
1609 | Protocols.push_back(*ProtocolOrErr); |
1610 | else |
1611 | return ProtocolOrErr.takeError(); |
1612 | |
1613 | } |
1614 | |
1615 | return Importer.getToContext().getObjCObjectType(*ToBaseTypeOrErr, TypeArgs, |
1616 | Protocols, |
1617 | T->isKindOfTypeAsWritten()); |
1618 | } |
1619 | |
1620 | ExpectedType |
1621 | ASTNodeImporter::VisitObjCObjectPointerType(const ObjCObjectPointerType *T) { |
1622 | ExpectedType ToPointeeTypeOrErr = import(T->getPointeeType()); |
1623 | if (!ToPointeeTypeOrErr) |
1624 | return ToPointeeTypeOrErr.takeError(); |
1625 | |
1626 | return Importer.getToContext().getObjCObjectPointerType(*ToPointeeTypeOrErr); |
1627 | } |
1628 | |
1629 | //---------------------------------------------------------------------------- |
1630 | // Import Declarations |
1631 | //---------------------------------------------------------------------------- |
1632 | Error ASTNodeImporter::ImportDeclParts( |
1633 | NamedDecl *D, DeclContext *&DC, DeclContext *&LexicalDC, |
1634 | DeclarationName &Name, NamedDecl *&ToD, SourceLocation &Loc) { |
1635 | // Check if RecordDecl is in FunctionDecl parameters to avoid infinite loop. |
1636 | // example: int struct_in_proto(struct data_t{int a;int b;} *d); |
1637 | // FIXME: We could support these constructs by importing a different type of |
1638 | // this parameter and by importing the original type of the parameter only |
1639 | // after the FunctionDecl is created. See |
1640 | // VisitFunctionDecl::UsedDifferentProtoType. |
1641 | DeclContext *OrigDC = D->getDeclContext(); |
1642 | FunctionDecl *FunDecl; |
1643 | if (isa<RecordDecl>(D) && (FunDecl = dyn_cast<FunctionDecl>(OrigDC)) && |
1644 | FunDecl->hasBody()) { |
1645 | auto getLeafPointeeType = [](const Type *T) { |
1646 | while (T->isPointerType() || T->isArrayType()) { |
1647 | T = T->getPointeeOrArrayElementType(); |
1648 | } |
1649 | return T; |
1650 | }; |
1651 | for (const ParmVarDecl *P : FunDecl->parameters()) { |
1652 | const Type *LeafT = |
1653 | getLeafPointeeType(P->getType().getCanonicalType().getTypePtr()); |
1654 | auto *RT = dyn_cast<RecordType>(LeafT); |
1655 | if (RT && RT->getDecl() == D) { |
1656 | Importer.FromDiag(D->getLocation(), diag::err_unsupported_ast_node) |
1657 | << D->getDeclKindName(); |
1658 | return make_error<ImportError>(ImportError::UnsupportedConstruct); |
1659 | } |
1660 | } |
1661 | } |
1662 | |
1663 | // Import the context of this declaration. |
1664 | if (Error Err = ImportDeclContext(D, DC, LexicalDC)) |
1665 | return Err; |
1666 | |
1667 | // Import the name of this declaration. |
1668 | if (Error Err = importInto(Name, D->getDeclName())) |
1669 | return Err; |
1670 | |
1671 | // Import the location of this declaration. |
1672 | if (Error Err = importInto(Loc, D->getLocation())) |
1673 | return Err; |
1674 | |
1675 | ToD = cast_or_null<NamedDecl>(Importer.GetAlreadyImportedOrNull(D)); |
1676 | if (ToD) |
1677 | if (Error Err = ASTNodeImporter(*this).ImportDefinitionIfNeeded(D, ToD)) |
1678 | return Err; |
1679 | |
1680 | return Error::success(); |
1681 | } |
1682 | |
1683 | Error ASTNodeImporter::ImportDeclParts(NamedDecl *D, DeclarationName &Name, |
1684 | NamedDecl *&ToD, SourceLocation &Loc) { |
1685 | |
1686 | // Import the name of this declaration. |
1687 | if (Error Err = importInto(Name, D->getDeclName())) |
1688 | return Err; |
1689 | |
1690 | // Import the location of this declaration. |
1691 | if (Error Err = importInto(Loc, D->getLocation())) |
1692 | return Err; |
1693 | |
1694 | ToD = cast_or_null<NamedDecl>(Importer.GetAlreadyImportedOrNull(D)); |
1695 | if (ToD) |
1696 | if (Error Err = ASTNodeImporter(*this).ImportDefinitionIfNeeded(D, ToD)) |
1697 | return Err; |
1698 | |
1699 | return Error::success(); |
1700 | } |
1701 | |
1702 | Error ASTNodeImporter::ImportDefinitionIfNeeded(Decl *FromD, Decl *ToD) { |
1703 | if (!FromD) |
1704 | return Error::success(); |
1705 | |
1706 | if (!ToD) |
1707 | if (Error Err = importInto(ToD, FromD)) |
1708 | return Err; |
1709 | |
1710 | if (RecordDecl *FromRecord = dyn_cast<RecordDecl>(FromD)) { |
1711 | if (RecordDecl *ToRecord = cast<RecordDecl>(ToD)) { |
1712 | if (FromRecord->getDefinition() && FromRecord->isCompleteDefinition() && |
1713 | !ToRecord->getDefinition()) { |
1714 | if (Error Err = ImportDefinition(FromRecord, ToRecord)) |
1715 | return Err; |
1716 | } |
1717 | } |
1718 | return Error::success(); |
1719 | } |
1720 | |
1721 | if (EnumDecl *FromEnum = dyn_cast<EnumDecl>(FromD)) { |
1722 | if (EnumDecl *ToEnum = cast<EnumDecl>(ToD)) { |
1723 | if (FromEnum->getDefinition() && !ToEnum->getDefinition()) { |
1724 | if (Error Err = ImportDefinition(FromEnum, ToEnum)) |
1725 | return Err; |
1726 | } |
1727 | } |
1728 | return Error::success(); |
1729 | } |
1730 | |
1731 | return Error::success(); |
1732 | } |
1733 | |
1734 | Error |
1735 | ASTNodeImporter::ImportDeclarationNameLoc( |
1736 | const DeclarationNameInfo &From, DeclarationNameInfo& To) { |
1737 | // NOTE: To.Name and To.Loc are already imported. |
1738 | // We only have to import To.LocInfo. |
1739 | switch (To.getName().getNameKind()) { |
1740 | case DeclarationName::Identifier: |
1741 | case DeclarationName::ObjCZeroArgSelector: |
1742 | case DeclarationName::ObjCOneArgSelector: |
1743 | case DeclarationName::ObjCMultiArgSelector: |
1744 | case DeclarationName::CXXUsingDirective: |
1745 | case DeclarationName::CXXDeductionGuideName: |
1746 | return Error::success(); |
1747 | |
1748 | case DeclarationName::CXXOperatorName: { |
1749 | if (auto ToRangeOrErr = import(From.getCXXOperatorNameRange())) |
1750 | To.setCXXOperatorNameRange(*ToRangeOrErr); |
1751 | else |
1752 | return ToRangeOrErr.takeError(); |
1753 | return Error::success(); |
1754 | } |
1755 | case DeclarationName::CXXLiteralOperatorName: { |
1756 | if (ExpectedSLoc LocOrErr = import(From.getCXXLiteralOperatorNameLoc())) |
1757 | To.setCXXLiteralOperatorNameLoc(*LocOrErr); |
1758 | else |
1759 | return LocOrErr.takeError(); |
1760 | return Error::success(); |
1761 | } |
1762 | case DeclarationName::CXXConstructorName: |
1763 | case DeclarationName::CXXDestructorName: |
1764 | case DeclarationName::CXXConversionFunctionName: { |
1765 | if (auto ToTInfoOrErr = import(From.getNamedTypeInfo())) |
1766 | To.setNamedTypeInfo(*ToTInfoOrErr); |
1767 | else |
1768 | return ToTInfoOrErr.takeError(); |
1769 | return Error::success(); |
1770 | } |
1771 | } |
1772 | llvm_unreachable("Unknown name kind.")__builtin_unreachable(); |
1773 | } |
1774 | |
1775 | Error |
1776 | ASTNodeImporter::ImportDeclContext(DeclContext *FromDC, bool ForceImport) { |
1777 | if (Importer.isMinimalImport() && !ForceImport) { |
1778 | auto ToDCOrErr = Importer.ImportContext(FromDC); |
1779 | return ToDCOrErr.takeError(); |
1780 | } |
1781 | |
1782 | // We use strict error handling in case of records and enums, but not |
1783 | // with e.g. namespaces. |
1784 | // |
1785 | // FIXME Clients of the ASTImporter should be able to choose an |
1786 | // appropriate error handling strategy for their needs. For instance, |
1787 | // they may not want to mark an entire namespace as erroneous merely |
1788 | // because there is an ODR error with two typedefs. As another example, |
1789 | // the client may allow EnumConstantDecls with same names but with |
1790 | // different values in two distinct translation units. |
1791 | bool AccumulateChildErrors = isa<TagDecl>(FromDC); |
1792 | |
1793 | Error ChildErrors = Error::success(); |
1794 | for (auto *From : FromDC->decls()) { |
1795 | ExpectedDecl ImportedOrErr = import(From); |
1796 | |
1797 | // If we are in the process of ImportDefinition(...) for a RecordDecl we |
1798 | // want to make sure that we are also completing each FieldDecl. There |
1799 | // are currently cases where this does not happen and this is correctness |
1800 | // fix since operations such as code generation will expect this to be so. |
1801 | if (ImportedOrErr) { |
1802 | FieldDecl *FieldFrom = dyn_cast_or_null<FieldDecl>(From); |
1803 | Decl *ImportedDecl = *ImportedOrErr; |
1804 | FieldDecl *FieldTo = dyn_cast_or_null<FieldDecl>(ImportedDecl); |
1805 | if (FieldFrom && FieldTo) { |
1806 | RecordDecl *FromRecordDecl = nullptr; |
1807 | RecordDecl *ToRecordDecl = nullptr; |
1808 | // If we have a field that is an ArrayType we need to check if the array |
1809 | // element is a RecordDecl and if so we need to import the defintion. |
1810 | if (FieldFrom->getType()->isArrayType()) { |
1811 | // getBaseElementTypeUnsafe(...) handles multi-dimensonal arrays for us. |
1812 | FromRecordDecl = FieldFrom->getType()->getBaseElementTypeUnsafe()->getAsRecordDecl(); |
1813 | ToRecordDecl = FieldTo->getType()->getBaseElementTypeUnsafe()->getAsRecordDecl(); |
1814 | } |
1815 | |
1816 | if (!FromRecordDecl || !ToRecordDecl) { |
1817 | const RecordType *RecordFrom = |
1818 | FieldFrom->getType()->getAs<RecordType>(); |
1819 | const RecordType *RecordTo = FieldTo->getType()->getAs<RecordType>(); |
1820 | |
1821 | if (RecordFrom && RecordTo) { |
1822 | FromRecordDecl = RecordFrom->getDecl(); |
1823 | ToRecordDecl = RecordTo->getDecl(); |
1824 | } |
1825 | } |
1826 | |
1827 | if (FromRecordDecl && ToRecordDecl) { |
1828 | if (FromRecordDecl->isCompleteDefinition() && |
1829 | !ToRecordDecl->isCompleteDefinition()) { |
1830 | Error Err = ImportDefinition(FromRecordDecl, ToRecordDecl); |
1831 | |
1832 | if (Err && AccumulateChildErrors) |
1833 | ChildErrors = joinErrors(std::move(ChildErrors), std::move(Err)); |
1834 | else |
1835 | consumeError(std::move(Err)); |
1836 | } |
1837 | } |
1838 | } |
1839 | } else { |
1840 | if (AccumulateChildErrors) |
1841 | ChildErrors = |
1842 | joinErrors(std::move(ChildErrors), ImportedOrErr.takeError()); |
1843 | else |
1844 | consumeError(ImportedOrErr.takeError()); |
1845 | } |
1846 | } |
1847 | |
1848 | // We reorder declarations in RecordDecls because they may have another order |
1849 | // in the "to" context than they have in the "from" context. This may happen |
1850 | // e.g when we import a class like this: |
1851 | // struct declToImport { |
1852 | // int a = c + b; |
1853 | // int b = 1; |
1854 | // int c = 2; |
1855 | // }; |
1856 | // During the import of `a` we import first the dependencies in sequence, |
1857 | // thus the order would be `c`, `b`, `a`. We will get the normal order by |
1858 | // first removing the already imported members and then adding them in the |
1859 | // order as they apper in the "from" context. |
1860 | // |
1861 | // Keeping field order is vital because it determines structure layout. |
1862 | // |
1863 | // Here and below, we cannot call field_begin() method and its callers on |
1864 | // ToDC if it has an external storage. Calling field_begin() will |
1865 | // automatically load all the fields by calling |
1866 | // LoadFieldsFromExternalStorage(). LoadFieldsFromExternalStorage() would |
1867 | // call ASTImporter::Import(). This is because the ExternalASTSource |
1868 | // interface in LLDB is implemented by the means of the ASTImporter. However, |
1869 | // calling an import at this point would result in an uncontrolled import, we |
1870 | // must avoid that. |
1871 | const auto *FromRD = dyn_cast<RecordDecl>(FromDC); |
1872 | if (!FromRD) |
1873 | return ChildErrors; |
1874 | |
1875 | auto ToDCOrErr = Importer.ImportContext(FromDC); |
1876 | if (!ToDCOrErr) { |
1877 | consumeError(std::move(ChildErrors)); |
1878 | return ToDCOrErr.takeError(); |
1879 | } |
1880 | |
1881 | DeclContext *ToDC = *ToDCOrErr; |
1882 | // Remove all declarations, which may be in wrong order in the |
1883 | // lexical DeclContext and then add them in the proper order. |
1884 | for (auto *D : FromRD->decls()) { |
1885 | if (isa<FieldDecl>(D) || isa<IndirectFieldDecl>(D) || isa<FriendDecl>(D)) { |
1886 | assert(D && "DC contains a null decl")((void)0); |
1887 | Decl *ToD = Importer.GetAlreadyImportedOrNull(D); |
1888 | // Remove only the decls which we successfully imported. |
1889 | if (ToD) { |
1890 | assert(ToDC == ToD->getLexicalDeclContext() && ToDC->containsDecl(ToD))((void)0); |
1891 | // Remove the decl from its wrong place in the linked list. |
1892 | ToDC->removeDecl(ToD); |
1893 | // Add the decl to the end of the linked list. |
1894 | // This time it will be at the proper place because the enclosing for |
1895 | // loop iterates in the original (good) order of the decls. |
1896 | ToDC->addDeclInternal(ToD); |
1897 | } |
1898 | } |
1899 | } |
1900 | |
1901 | return ChildErrors; |
1902 | } |
1903 | |
1904 | Error ASTNodeImporter::ImportDeclContext( |
1905 | Decl *FromD, DeclContext *&ToDC, DeclContext *&ToLexicalDC) { |
1906 | auto ToDCOrErr = Importer.ImportContext(FromD->getDeclContext()); |
1907 | if (!ToDCOrErr) |
1908 | return ToDCOrErr.takeError(); |
1909 | ToDC = *ToDCOrErr; |
1910 | |
1911 | if (FromD->getDeclContext() != FromD->getLexicalDeclContext()) { |
1912 | auto ToLexicalDCOrErr = Importer.ImportContext( |
1913 | FromD->getLexicalDeclContext()); |
1914 | if (!ToLexicalDCOrErr) |
1915 | return ToLexicalDCOrErr.takeError(); |
1916 | ToLexicalDC = *ToLexicalDCOrErr; |
1917 | } else |
1918 | ToLexicalDC = ToDC; |
1919 | |
1920 | return Error::success(); |
1921 | } |
1922 | |
1923 | Error ASTNodeImporter::ImportImplicitMethods( |
1924 | const CXXRecordDecl *From, CXXRecordDecl *To) { |
1925 | assert(From->isCompleteDefinition() && To->getDefinition() == To &&((void)0) |
1926 | "Import implicit methods to or from non-definition")((void)0); |
1927 | |
1928 | for (CXXMethodDecl *FromM : From->methods()) |
1929 | if (FromM->isImplicit()) { |
1930 | Expected<CXXMethodDecl *> ToMOrErr = import(FromM); |
1931 | if (!ToMOrErr) |
1932 | return ToMOrErr.takeError(); |
1933 | } |
1934 | |
1935 | return Error::success(); |
1936 | } |
1937 | |
1938 | static Error setTypedefNameForAnonDecl(TagDecl *From, TagDecl *To, |
1939 | ASTImporter &Importer) { |
1940 | if (TypedefNameDecl *FromTypedef = From->getTypedefNameForAnonDecl()) { |
1941 | if (ExpectedDecl ToTypedefOrErr = Importer.Import(FromTypedef)) |
1942 | To->setTypedefNameForAnonDecl(cast<TypedefNameDecl>(*ToTypedefOrErr)); |
1943 | else |
1944 | return ToTypedefOrErr.takeError(); |
1945 | } |
1946 | return Error::success(); |
1947 | } |
1948 | |
1949 | Error ASTNodeImporter::ImportDefinition( |
1950 | RecordDecl *From, RecordDecl *To, ImportDefinitionKind Kind) { |
1951 | auto DefinitionCompleter = [To]() { |
1952 | // There are cases in LLDB when we first import a class without its |
1953 | // members. The class will have DefinitionData, but no members. Then, |
1954 | // importDefinition is called from LLDB, which tries to get the members, so |
1955 | // when we get here, the class already has the DefinitionData set, so we |
1956 | // must unset the CompleteDefinition here to be able to complete again the |
1957 | // definition. |
1958 | To->setCompleteDefinition(false); |
1959 | To->completeDefinition(); |
1960 | }; |
1961 | |
1962 | if (To->getDefinition() || To->isBeingDefined()) { |
1963 | if (Kind == IDK_Everything || |
1964 | // In case of lambdas, the class already has a definition ptr set, but |
1965 | // the contained decls are not imported yet. Also, isBeingDefined was |
1966 | // set in CXXRecordDecl::CreateLambda. We must import the contained |
1967 | // decls here and finish the definition. |
1968 | (To->isLambda() && shouldForceImportDeclContext(Kind))) { |
1969 | if (To->isLambda()) { |
1970 | auto *FromCXXRD = cast<CXXRecordDecl>(From); |
1971 | SmallVector<LambdaCapture, 8> ToCaptures; |
1972 | ToCaptures.reserve(FromCXXRD->capture_size()); |
1973 | for (const auto &FromCapture : FromCXXRD->captures()) { |
1974 | if (auto ToCaptureOrErr = import(FromCapture)) |
1975 | ToCaptures.push_back(*ToCaptureOrErr); |
1976 | else |
1977 | return ToCaptureOrErr.takeError(); |
1978 | } |
1979 | cast<CXXRecordDecl>(To)->setCaptures(Importer.getToContext(), |
1980 | ToCaptures); |
1981 | } |
1982 | |
1983 | Error Result = ImportDeclContext(From, /*ForceImport=*/true); |
1984 | // Finish the definition of the lambda, set isBeingDefined to false. |
1985 | if (To->isLambda()) |
1986 | DefinitionCompleter(); |
1987 | return Result; |
1988 | } |
1989 | |
1990 | return Error::success(); |
1991 | } |
1992 | |
1993 | To->startDefinition(); |
1994 | // Complete the definition even if error is returned. |
1995 | // The RecordDecl may be already part of the AST so it is better to |
1996 | // have it in complete state even if something is wrong with it. |
1997 | auto DefinitionCompleterScopeExit = |
1998 | llvm::make_scope_exit(DefinitionCompleter); |
1999 | |
2000 | if (Error Err = setTypedefNameForAnonDecl(From, To, Importer)) |
2001 | return Err; |
2002 | |
2003 | // Add base classes. |
2004 | auto *ToCXX = dyn_cast<CXXRecordDecl>(To); |
2005 | auto *FromCXX = dyn_cast<CXXRecordDecl>(From); |
2006 | if (ToCXX && FromCXX && ToCXX->dataPtr() && FromCXX->dataPtr()) { |
2007 | |
2008 | struct CXXRecordDecl::DefinitionData &ToData = ToCXX->data(); |
2009 | struct CXXRecordDecl::DefinitionData &FromData = FromCXX->data(); |
2010 | |
2011 | #define FIELD(Name, Width, Merge) \ |
2012 | ToData.Name = FromData.Name; |
2013 | #include "clang/AST/CXXRecordDeclDefinitionBits.def" |
2014 | |
2015 | // Copy over the data stored in RecordDeclBits |
2016 | ToCXX->setArgPassingRestrictions(FromCXX->getArgPassingRestrictions()); |
2017 | |
2018 | SmallVector<CXXBaseSpecifier *, 4> Bases; |
2019 | for (const auto &Base1 : FromCXX->bases()) { |
2020 | ExpectedType TyOrErr = import(Base1.getType()); |
2021 | if (!TyOrErr) |
2022 | return TyOrErr.takeError(); |
2023 | |
2024 | SourceLocation EllipsisLoc; |
2025 | if (Base1.isPackExpansion()) { |
2026 | if (ExpectedSLoc LocOrErr = import(Base1.getEllipsisLoc())) |
2027 | EllipsisLoc = *LocOrErr; |
2028 | else |
2029 | return LocOrErr.takeError(); |
2030 | } |
2031 | |
2032 | // Ensure that we have a definition for the base. |
2033 | if (Error Err = |
2034 | ImportDefinitionIfNeeded(Base1.getType()->getAsCXXRecordDecl())) |
2035 | return Err; |
2036 | |
2037 | auto RangeOrErr = import(Base1.getSourceRange()); |
2038 | if (!RangeOrErr) |
2039 | return RangeOrErr.takeError(); |
2040 | |
2041 | auto TSIOrErr = import(Base1.getTypeSourceInfo()); |
2042 | if (!TSIOrErr) |
2043 | return TSIOrErr.takeError(); |
2044 | |
2045 | Bases.push_back( |
2046 | new (Importer.getToContext()) CXXBaseSpecifier( |
2047 | *RangeOrErr, |
2048 | Base1.isVirtual(), |
2049 | Base1.isBaseOfClass(), |
2050 | Base1.getAccessSpecifierAsWritten(), |
2051 | *TSIOrErr, |
2052 | EllipsisLoc)); |
2053 | } |
2054 | if (!Bases.empty()) |
2055 | ToCXX->setBases(Bases.data(), Bases.size()); |
2056 | } |
2057 | |
2058 | if (shouldForceImportDeclContext(Kind)) |
2059 | if (Error Err = ImportDeclContext(From, /*ForceImport=*/true)) |
2060 | return Err; |
2061 | |
2062 | return Error::success(); |
2063 | } |
2064 | |
2065 | Error ASTNodeImporter::ImportInitializer(VarDecl *From, VarDecl *To) { |
2066 | if (To->getAnyInitializer()) |
2067 | return Error::success(); |
2068 | |
2069 | Expr *FromInit = From->getInit(); |
2070 | if (!FromInit) |
2071 | return Error::success(); |
2072 | |
2073 | ExpectedExpr ToInitOrErr = import(FromInit); |
2074 | if (!ToInitOrErr) |
2075 | return ToInitOrErr.takeError(); |
2076 | |
2077 | To->setInit(*ToInitOrErr); |
2078 | if (EvaluatedStmt *FromEval = From->getEvaluatedStmt()) { |
2079 | EvaluatedStmt *ToEval = To->ensureEvaluatedStmt(); |
2080 | ToEval->HasConstantInitialization = FromEval->HasConstantInitialization; |
2081 | ToEval->HasConstantDestruction = FromEval->HasConstantDestruction; |
2082 | // FIXME: Also import the initializer value. |
2083 | } |
2084 | |
2085 | // FIXME: Other bits to merge? |
2086 | return Error::success(); |
2087 | } |
2088 | |
2089 | Error ASTNodeImporter::ImportDefinition( |
2090 | EnumDecl *From, EnumDecl *To, ImportDefinitionKind Kind) { |
2091 | if (To->getDefinition() || To->isBeingDefined()) { |
2092 | if (Kind == IDK_Everything) |
2093 | return ImportDeclContext(From, /*ForceImport=*/true); |
2094 | return Error::success(); |
2095 | } |
2096 | |
2097 | To->startDefinition(); |
2098 | |
2099 | if (Error Err = setTypedefNameForAnonDecl(From, To, Importer)) |
2100 | return Err; |
2101 | |
2102 | ExpectedType ToTypeOrErr = |
2103 | import(Importer.getFromContext().getTypeDeclType(From)); |
2104 | if (!ToTypeOrErr) |
2105 | return ToTypeOrErr.takeError(); |
2106 | |
2107 | ExpectedType ToPromotionTypeOrErr = import(From->getPromotionType()); |
2108 | if (!ToPromotionTypeOrErr) |
2109 | return ToPromotionTypeOrErr.takeError(); |
2110 | |
2111 | if (shouldForceImportDeclContext(Kind)) |
2112 | if (Error Err = ImportDeclContext(From, /*ForceImport=*/true)) |
2113 | return Err; |
2114 | |
2115 | // FIXME: we might need to merge the number of positive or negative bits |
2116 | // if the enumerator lists don't match. |
2117 | To->completeDefinition(*ToTypeOrErr, *ToPromotionTypeOrErr, |
2118 | From->getNumPositiveBits(), |
2119 | From->getNumNegativeBits()); |
2120 | return Error::success(); |
2121 | } |
2122 | |
2123 | Error ASTNodeImporter::ImportTemplateArguments( |
2124 | const TemplateArgument *FromArgs, unsigned NumFromArgs, |
2125 | SmallVectorImpl<TemplateArgument> &ToArgs) { |
2126 | for (unsigned I = 0; I != NumFromArgs; ++I) { |
2127 | if (auto ToOrErr = import(FromArgs[I])) |
2128 | ToArgs.push_back(*ToOrErr); |
2129 | else |
2130 | return ToOrErr.takeError(); |
2131 | } |
2132 | |
2133 | return Error::success(); |
2134 | } |
2135 | |
2136 | // FIXME: Do not forget to remove this and use only 'import'. |
2137 | Expected<TemplateArgument> |
2138 | ASTNodeImporter::ImportTemplateArgument(const TemplateArgument &From) { |
2139 | return import(From); |
2140 | } |
2141 | |
2142 | template <typename InContainerTy> |
2143 | Error ASTNodeImporter::ImportTemplateArgumentListInfo( |
2144 | const InContainerTy &Container, TemplateArgumentListInfo &ToTAInfo) { |
2145 | for (const auto &FromLoc : Container) { |
2146 | if (auto ToLocOrErr = import(FromLoc)) |
2147 | ToTAInfo.addArgument(*ToLocOrErr); |
2148 | else |
2149 | return ToLocOrErr.takeError(); |
2150 | } |
2151 | return Error::success(); |
2152 | } |
2153 | |
2154 | static StructuralEquivalenceKind |
2155 | getStructuralEquivalenceKind(const ASTImporter &Importer) { |
2156 | return Importer.isMinimalImport() ? StructuralEquivalenceKind::Minimal |
2157 | : StructuralEquivalenceKind::Default; |
2158 | } |
2159 | |
2160 | bool ASTNodeImporter::IsStructuralMatch(Decl *From, Decl *To, bool Complain) { |
2161 | StructuralEquivalenceContext Ctx( |
2162 | Importer.getFromContext(), Importer.getToContext(), |
2163 | Importer.getNonEquivalentDecls(), getStructuralEquivalenceKind(Importer), |
2164 | false, Complain); |
2165 | return Ctx.IsEquivalent(From, To); |
2166 | } |
2167 | |
2168 | bool ASTNodeImporter::IsStructuralMatch(RecordDecl *FromRecord, |
2169 | RecordDecl *ToRecord, bool Complain) { |
2170 | // Eliminate a potential failure point where we attempt to re-import |
2171 | // something we're trying to import while completing ToRecord. |
2172 | Decl *ToOrigin = Importer.GetOriginalDecl(ToRecord); |
2173 | if (ToOrigin) { |
2174 | auto *ToOriginRecord = dyn_cast<RecordDecl>(ToOrigin); |
2175 | if (ToOriginRecord) |
2176 | ToRecord = ToOriginRecord; |
2177 | } |
2178 | |
2179 | StructuralEquivalenceContext Ctx(Importer.getFromContext(), |
2180 | ToRecord->getASTContext(), |
2181 | Importer.getNonEquivalentDecls(), |
2182 | getStructuralEquivalenceKind(Importer), |
2183 | false, Complain); |
2184 | return Ctx.IsEquivalent(FromRecord, ToRecord); |
2185 | } |
2186 | |
2187 | bool ASTNodeImporter::IsStructuralMatch(VarDecl *FromVar, VarDecl *ToVar, |
2188 | bool Complain) { |
2189 | StructuralEquivalenceContext Ctx( |
2190 | Importer.getFromContext(), Importer.getToContext(), |
2191 | Importer.getNonEquivalentDecls(), getStructuralEquivalenceKind(Importer), |
2192 | false, Complain); |
2193 | return Ctx.IsEquivalent(FromVar, ToVar); |
2194 | } |
2195 | |
2196 | bool ASTNodeImporter::IsStructuralMatch(EnumDecl *FromEnum, EnumDecl *ToEnum) { |
2197 | // Eliminate a potential failure point where we attempt to re-import |
2198 | // something we're trying to import while completing ToEnum. |
2199 | if (Decl *ToOrigin = Importer.GetOriginalDecl(ToEnum)) |
2200 | if (auto *ToOriginEnum = dyn_cast<EnumDecl>(ToOrigin)) |
2201 | ToEnum = ToOriginEnum; |
2202 | |
2203 | StructuralEquivalenceContext Ctx( |
2204 | Importer.getFromContext(), Importer.getToContext(), |
2205 | Importer.getNonEquivalentDecls(), getStructuralEquivalenceKind(Importer)); |
2206 | return Ctx.IsEquivalent(FromEnum, ToEnum); |
2207 | } |
2208 | |
2209 | bool ASTNodeImporter::IsStructuralMatch(FunctionTemplateDecl *From, |
2210 | FunctionTemplateDecl *To) { |
2211 | StructuralEquivalenceContext Ctx( |
2212 | Importer.getFromContext(), Importer.getToContext(), |
2213 | Importer.getNonEquivalentDecls(), getStructuralEquivalenceKind(Importer), |
2214 | false, false); |
2215 | return Ctx.IsEquivalent(From, To); |
2216 | } |
2217 | |
2218 | bool ASTNodeImporter::IsStructuralMatch(FunctionDecl *From, FunctionDecl *To) { |
2219 | StructuralEquivalenceContext Ctx( |
2220 | Importer.getFromContext(), Importer.getToContext(), |
2221 | Importer.getNonEquivalentDecls(), getStructuralEquivalenceKind(Importer), |
2222 | false, false); |
2223 | return Ctx.IsEquivalent(From, To); |
2224 | } |
2225 | |
2226 | bool ASTNodeImporter::IsStructuralMatch(EnumConstantDecl *FromEC, |
2227 | EnumConstantDecl *ToEC) { |
2228 | const llvm::APSInt &FromVal = FromEC->getInitVal(); |
2229 | const llvm::APSInt &ToVal = ToEC->getInitVal(); |
2230 | |
2231 | return FromVal.isSigned() == ToVal.isSigned() && |
2232 | FromVal.getBitWidth() == ToVal.getBitWidth() && |
2233 | FromVal == ToVal; |
2234 | } |
2235 | |
2236 | bool ASTNodeImporter::IsStructuralMatch(ClassTemplateDecl *From, |
2237 | ClassTemplateDecl *To) { |
2238 | StructuralEquivalenceContext Ctx(Importer.getFromContext(), |
2239 | Importer.getToContext(), |
2240 | Importer.getNonEquivalentDecls(), |
2241 | getStructuralEquivalenceKind(Importer)); |
2242 | return Ctx.IsEquivalent(From, To); |
2243 | } |
2244 | |
2245 | bool ASTNodeImporter::IsStructuralMatch(VarTemplateDecl *From, |
2246 | VarTemplateDecl *To) { |
2247 | StructuralEquivalenceContext Ctx(Importer.getFromContext(), |
2248 | Importer.getToContext(), |
2249 | Importer.getNonEquivalentDecls(), |
2250 | getStructuralEquivalenceKind(Importer)); |
2251 | return Ctx.IsEquivalent(From, To); |
2252 | } |
2253 | |
2254 | ExpectedDecl ASTNodeImporter::VisitDecl(Decl *D) { |
2255 | Importer.FromDiag(D->getLocation(), diag::err_unsupported_ast_node) |
2256 | << D->getDeclKindName(); |
2257 | return make_error<ImportError>(ImportError::UnsupportedConstruct); |
2258 | } |
2259 | |
2260 | ExpectedDecl ASTNodeImporter::VisitImportDecl(ImportDecl *D) { |
2261 | Importer.FromDiag(D->getLocation(), diag::err_unsupported_ast_node) |
2262 | << D->getDeclKindName(); |
2263 | return make_error<ImportError>(ImportError::UnsupportedConstruct); |
2264 | } |
2265 | |
2266 | ExpectedDecl ASTNodeImporter::VisitEmptyDecl(EmptyDecl *D) { |
2267 | // Import the context of this declaration. |
2268 | DeclContext *DC, *LexicalDC; |
2269 | if (Error Err = ImportDeclContext(D, DC, LexicalDC)) |
2270 | return std::move(Err); |
2271 | |
2272 | // Import the location of this declaration. |
2273 | ExpectedSLoc LocOrErr = import(D->getLocation()); |
2274 | if (!LocOrErr) |
2275 | return LocOrErr.takeError(); |
2276 | |
2277 | EmptyDecl *ToD; |
2278 | if (GetImportedOrCreateDecl(ToD, D, Importer.getToContext(), DC, *LocOrErr)) |
2279 | return ToD; |
2280 | |
2281 | ToD->setLexicalDeclContext(LexicalDC); |
2282 | LexicalDC->addDeclInternal(ToD); |
2283 | return ToD; |
2284 | } |
2285 | |
2286 | ExpectedDecl ASTNodeImporter::VisitTranslationUnitDecl(TranslationUnitDecl *D) { |
2287 | TranslationUnitDecl *ToD = |
2288 | Importer.getToContext().getTranslationUnitDecl(); |
2289 | |
2290 | Importer.MapImported(D, ToD); |
2291 | |
2292 | return ToD; |
2293 | } |
2294 | |
2295 | ExpectedDecl ASTNodeImporter::VisitBindingDecl(BindingDecl *D) { |
2296 | DeclContext *DC, *LexicalDC; |
2297 | DeclarationName Name; |
2298 | SourceLocation Loc; |
2299 | NamedDecl *ToND; |
2300 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToND, Loc)) |
2301 | return std::move(Err); |
2302 | if (ToND) |
2303 | return ToND; |
2304 | |
2305 | BindingDecl *ToD; |
2306 | if (GetImportedOrCreateDecl(ToD, D, Importer.getToContext(), DC, Loc, |
2307 | Name.getAsIdentifierInfo())) |
2308 | return ToD; |
2309 | |
2310 | Error Err = Error::success(); |
2311 | QualType ToType = importChecked(Err, D->getType()); |
2312 | Expr *ToBinding = importChecked(Err, D->getBinding()); |
2313 | ValueDecl *ToDecomposedDecl = importChecked(Err, D->getDecomposedDecl()); |
2314 | if (Err) |
2315 | return std::move(Err); |
2316 | |
2317 | ToD->setBinding(ToType, ToBinding); |
2318 | ToD->setDecomposedDecl(ToDecomposedDecl); |
2319 | addDeclToContexts(D, ToD); |
2320 | |
2321 | return ToD; |
2322 | } |
2323 | |
2324 | ExpectedDecl ASTNodeImporter::VisitAccessSpecDecl(AccessSpecDecl *D) { |
2325 | ExpectedSLoc LocOrErr = import(D->getLocation()); |
2326 | if (!LocOrErr) |
2327 | return LocOrErr.takeError(); |
2328 | auto ColonLocOrErr = import(D->getColonLoc()); |
2329 | if (!ColonLocOrErr) |
2330 | return ColonLocOrErr.takeError(); |
2331 | |
2332 | // Import the context of this declaration. |
2333 | auto DCOrErr = Importer.ImportContext(D->getDeclContext()); |
2334 | if (!DCOrErr) |
2335 | return DCOrErr.takeError(); |
2336 | DeclContext *DC = *DCOrErr; |
2337 | |
2338 | AccessSpecDecl *ToD; |
2339 | if (GetImportedOrCreateDecl(ToD, D, Importer.getToContext(), D->getAccess(), |
2340 | DC, *LocOrErr, *ColonLocOrErr)) |
2341 | return ToD; |
2342 | |
2343 | // Lexical DeclContext and Semantic DeclContext |
2344 | // is always the same for the accessSpec. |
2345 | ToD->setLexicalDeclContext(DC); |
2346 | DC->addDeclInternal(ToD); |
2347 | |
2348 | return ToD; |
2349 | } |
2350 | |
2351 | ExpectedDecl ASTNodeImporter::VisitStaticAssertDecl(StaticAssertDecl *D) { |
2352 | auto DCOrErr = Importer.ImportContext(D->getDeclContext()); |
2353 | if (!DCOrErr) |
2354 | return DCOrErr.takeError(); |
2355 | DeclContext *DC = *DCOrErr; |
2356 | DeclContext *LexicalDC = DC; |
2357 | |
2358 | Error Err = Error::success(); |
2359 | auto ToLocation = importChecked(Err, D->getLocation()); |
2360 | auto ToRParenLoc = importChecked(Err, D->getRParenLoc()); |
2361 | auto ToAssertExpr = importChecked(Err, D->getAssertExpr()); |
2362 | auto ToMessage = importChecked(Err, D->getMessage()); |
2363 | if (Err) |
2364 | return std::move(Err); |
2365 | |
2366 | StaticAssertDecl *ToD; |
2367 | if (GetImportedOrCreateDecl( |
2368 | ToD, D, Importer.getToContext(), DC, ToLocation, ToAssertExpr, ToMessage, |
2369 | ToRParenLoc, D->isFailed())) |
2370 | return ToD; |
2371 | |
2372 | ToD->setLexicalDeclContext(LexicalDC); |
2373 | LexicalDC->addDeclInternal(ToD); |
2374 | return ToD; |
2375 | } |
2376 | |
2377 | ExpectedDecl ASTNodeImporter::VisitNamespaceDecl(NamespaceDecl *D) { |
2378 | // Import the major distinguishing characteristics of this namespace. |
2379 | DeclContext *DC, *LexicalDC; |
2380 | DeclarationName Name; |
2381 | SourceLocation Loc; |
2382 | NamedDecl *ToD; |
2383 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
2384 | return std::move(Err); |
2385 | if (ToD) |
2386 | return ToD; |
2387 | |
2388 | NamespaceDecl *MergeWithNamespace = nullptr; |
2389 | if (!Name) { |
2390 | // This is an anonymous namespace. Adopt an existing anonymous |
2391 | // namespace if we can. |
2392 | // FIXME: Not testable. |
2393 | if (auto *TU = dyn_cast<TranslationUnitDecl>(DC)) |
2394 | MergeWithNamespace = TU->getAnonymousNamespace(); |
2395 | else |
2396 | MergeWithNamespace = cast<NamespaceDecl>(DC)->getAnonymousNamespace(); |
2397 | } else { |
2398 | SmallVector<NamedDecl *, 4> ConflictingDecls; |
2399 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
2400 | for (auto *FoundDecl : FoundDecls) { |
2401 | if (!FoundDecl->isInIdentifierNamespace(Decl::IDNS_Namespace)) |
2402 | continue; |
2403 | |
2404 | if (auto *FoundNS = dyn_cast<NamespaceDecl>(FoundDecl)) { |
2405 | MergeWithNamespace = FoundNS; |
2406 | ConflictingDecls.clear(); |
2407 | break; |
2408 | } |
2409 | |
2410 | ConflictingDecls.push_back(FoundDecl); |
2411 | } |
2412 | |
2413 | if (!ConflictingDecls.empty()) { |
2414 | ExpectedName NameOrErr = Importer.HandleNameConflict( |
2415 | Name, DC, Decl::IDNS_Namespace, ConflictingDecls.data(), |
2416 | ConflictingDecls.size()); |
2417 | if (NameOrErr) |
2418 | Name = NameOrErr.get(); |
2419 | else |
2420 | return NameOrErr.takeError(); |
2421 | } |
2422 | } |
2423 | |
2424 | ExpectedSLoc BeginLocOrErr = import(D->getBeginLoc()); |
2425 | if (!BeginLocOrErr) |
2426 | return BeginLocOrErr.takeError(); |
2427 | ExpectedSLoc RBraceLocOrErr = import(D->getRBraceLoc()); |
2428 | if (!RBraceLocOrErr) |
2429 | return RBraceLocOrErr.takeError(); |
2430 | |
2431 | // Create the "to" namespace, if needed. |
2432 | NamespaceDecl *ToNamespace = MergeWithNamespace; |
2433 | if (!ToNamespace) { |
2434 | if (GetImportedOrCreateDecl( |
2435 | ToNamespace, D, Importer.getToContext(), DC, D->isInline(), |
2436 | *BeginLocOrErr, Loc, Name.getAsIdentifierInfo(), |
2437 | /*PrevDecl=*/nullptr)) |
2438 | return ToNamespace; |
2439 | ToNamespace->setRBraceLoc(*RBraceLocOrErr); |
2440 | ToNamespace->setLexicalDeclContext(LexicalDC); |
2441 | LexicalDC->addDeclInternal(ToNamespace); |
2442 | |
2443 | // If this is an anonymous namespace, register it as the anonymous |
2444 | // namespace within its context. |
2445 | if (!Name) { |
2446 | if (auto *TU = dyn_cast<TranslationUnitDecl>(DC)) |
2447 | TU->setAnonymousNamespace(ToNamespace); |
2448 | else |
2449 | cast<NamespaceDecl>(DC)->setAnonymousNamespace(ToNamespace); |
2450 | } |
2451 | } |
2452 | Importer.MapImported(D, ToNamespace); |
2453 | |
2454 | if (Error Err = ImportDeclContext(D)) |
2455 | return std::move(Err); |
2456 | |
2457 | return ToNamespace; |
2458 | } |
2459 | |
2460 | ExpectedDecl ASTNodeImporter::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { |
2461 | // Import the major distinguishing characteristics of this namespace. |
2462 | DeclContext *DC, *LexicalDC; |
2463 | DeclarationName Name; |
2464 | SourceLocation Loc; |
2465 | NamedDecl *LookupD; |
2466 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, LookupD, Loc)) |
2467 | return std::move(Err); |
2468 | if (LookupD) |
2469 | return LookupD; |
2470 | |
2471 | // NOTE: No conflict resolution is done for namespace aliases now. |
2472 | |
2473 | Error Err = Error::success(); |
2474 | auto ToNamespaceLoc = importChecked(Err, D->getNamespaceLoc()); |
2475 | auto ToAliasLoc = importChecked(Err, D->getAliasLoc()); |
2476 | auto ToQualifierLoc = importChecked(Err, D->getQualifierLoc()); |
2477 | auto ToTargetNameLoc = importChecked(Err, D->getTargetNameLoc()); |
2478 | auto ToNamespace = importChecked(Err, D->getNamespace()); |
2479 | if (Err) |
2480 | return std::move(Err); |
2481 | |
2482 | IdentifierInfo *ToIdentifier = Importer.Import(D->getIdentifier()); |
2483 | |
2484 | NamespaceAliasDecl *ToD; |
2485 | if (GetImportedOrCreateDecl( |
2486 | ToD, D, Importer.getToContext(), DC, ToNamespaceLoc, ToAliasLoc, |
2487 | ToIdentifier, ToQualifierLoc, ToTargetNameLoc, ToNamespace)) |
2488 | return ToD; |
2489 | |
2490 | ToD->setLexicalDeclContext(LexicalDC); |
2491 | LexicalDC->addDeclInternal(ToD); |
2492 | |
2493 | return ToD; |
2494 | } |
2495 | |
2496 | ExpectedDecl |
2497 | ASTNodeImporter::VisitTypedefNameDecl(TypedefNameDecl *D, bool IsAlias) { |
2498 | // Import the major distinguishing characteristics of this typedef. |
2499 | DeclarationName Name; |
2500 | SourceLocation Loc; |
2501 | NamedDecl *ToD; |
2502 | // Do not import the DeclContext, we will import it once the TypedefNameDecl |
2503 | // is created. |
2504 | if (Error Err = ImportDeclParts(D, Name, ToD, Loc)) |
2505 | return std::move(Err); |
2506 | if (ToD) |
2507 | return ToD; |
2508 | |
2509 | DeclContext *DC = cast_or_null<DeclContext>( |
2510 | Importer.GetAlreadyImportedOrNull(cast<Decl>(D->getDeclContext()))); |
2511 | DeclContext *LexicalDC = |
2512 | cast_or_null<DeclContext>(Importer.GetAlreadyImportedOrNull( |
2513 | cast<Decl>(D->getLexicalDeclContext()))); |
2514 | |
2515 | // If this typedef is not in block scope, determine whether we've |
2516 | // seen a typedef with the same name (that we can merge with) or any |
2517 | // other entity by that name (which name lookup could conflict with). |
2518 | // Note: Repeated typedefs are not valid in C99: |
2519 | // 'typedef int T; typedef int T;' is invalid |
2520 | // We do not care about this now. |
2521 | if (DC && !DC->isFunctionOrMethod()) { |
2522 | SmallVector<NamedDecl *, 4> ConflictingDecls; |
2523 | unsigned IDNS = Decl::IDNS_Ordinary; |
2524 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
2525 | for (auto *FoundDecl : FoundDecls) { |
2526 | if (!FoundDecl->isInIdentifierNamespace(IDNS)) |
2527 | continue; |
2528 | if (auto *FoundTypedef = dyn_cast<TypedefNameDecl>(FoundDecl)) { |
2529 | if (!hasSameVisibilityContextAndLinkage(FoundTypedef, D)) |
2530 | continue; |
2531 | |
2532 | QualType FromUT = D->getUnderlyingType(); |
2533 | QualType FoundUT = FoundTypedef->getUnderlyingType(); |
2534 | if (Importer.IsStructurallyEquivalent(FromUT, FoundUT)) { |
2535 | // If the "From" context has a complete underlying type but we |
2536 | // already have a complete underlying type then return with that. |
2537 | if (!FromUT->isIncompleteType() && !FoundUT->isIncompleteType()) |
2538 | return Importer.MapImported(D, FoundTypedef); |
2539 | // FIXME Handle redecl chain. When you do that make consistent changes |
2540 | // in ASTImporterLookupTable too. |
2541 | } else { |
2542 | ConflictingDecls.push_back(FoundDecl); |
2543 | } |
2544 | } |
2545 | } |
2546 | |
2547 | if (!ConflictingDecls.empty()) { |
2548 | ExpectedName NameOrErr = Importer.HandleNameConflict( |
2549 | Name, DC, IDNS, ConflictingDecls.data(), ConflictingDecls.size()); |
2550 | if (NameOrErr) |
2551 | Name = NameOrErr.get(); |
2552 | else |
2553 | return NameOrErr.takeError(); |
2554 | } |
2555 | } |
2556 | |
2557 | Error Err = Error::success(); |
2558 | auto ToUnderlyingType = importChecked(Err, D->getUnderlyingType()); |
2559 | auto ToTypeSourceInfo = importChecked(Err, D->getTypeSourceInfo()); |
2560 | auto ToBeginLoc = importChecked(Err, D->getBeginLoc()); |
2561 | if (Err) |
2562 | return std::move(Err); |
2563 | |
2564 | // Create the new typedef node. |
2565 | // FIXME: ToUnderlyingType is not used. |
2566 | (void)ToUnderlyingType; |
2567 | TypedefNameDecl *ToTypedef; |
2568 | if (IsAlias) { |
2569 | if (GetImportedOrCreateDecl<TypeAliasDecl>( |
2570 | ToTypedef, D, Importer.getToContext(), DC, ToBeginLoc, Loc, |
2571 | Name.getAsIdentifierInfo(), ToTypeSourceInfo)) |
2572 | return ToTypedef; |
2573 | } else if (GetImportedOrCreateDecl<TypedefDecl>( |
2574 | ToTypedef, D, Importer.getToContext(), DC, ToBeginLoc, Loc, |
2575 | Name.getAsIdentifierInfo(), ToTypeSourceInfo)) |
2576 | return ToTypedef; |
2577 | |
2578 | // Import the DeclContext and set it to the Typedef. |
2579 | if ((Err = ImportDeclContext(D, DC, LexicalDC))) |
2580 | return std::move(Err); |
2581 | ToTypedef->setDeclContext(DC); |
2582 | ToTypedef->setLexicalDeclContext(LexicalDC); |
2583 | // Add to the lookupTable because we could not do that in MapImported. |
2584 | Importer.AddToLookupTable(ToTypedef); |
2585 | |
2586 | ToTypedef->setAccess(D->getAccess()); |
2587 | |
2588 | // Templated declarations should not appear in DeclContext. |
2589 | TypeAliasDecl *FromAlias = IsAlias ? cast<TypeAliasDecl>(D) : nullptr; |
2590 | if (!FromAlias || !FromAlias->getDescribedAliasTemplate()) |
2591 | LexicalDC->addDeclInternal(ToTypedef); |
2592 | |
2593 | return ToTypedef; |
2594 | } |
2595 | |
2596 | ExpectedDecl ASTNodeImporter::VisitTypedefDecl(TypedefDecl *D) { |
2597 | return VisitTypedefNameDecl(D, /*IsAlias=*/false); |
2598 | } |
2599 | |
2600 | ExpectedDecl ASTNodeImporter::VisitTypeAliasDecl(TypeAliasDecl *D) { |
2601 | return VisitTypedefNameDecl(D, /*IsAlias=*/true); |
2602 | } |
2603 | |
2604 | ExpectedDecl |
2605 | ASTNodeImporter::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { |
2606 | // Import the major distinguishing characteristics of this typedef. |
2607 | DeclContext *DC, *LexicalDC; |
2608 | DeclarationName Name; |
2609 | SourceLocation Loc; |
2610 | NamedDecl *FoundD; |
2611 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, FoundD, Loc)) |
2612 | return std::move(Err); |
2613 | if (FoundD) |
2614 | return FoundD; |
2615 | |
2616 | // If this typedef is not in block scope, determine whether we've |
2617 | // seen a typedef with the same name (that we can merge with) or any |
2618 | // other entity by that name (which name lookup could conflict with). |
2619 | if (!DC->isFunctionOrMethod()) { |
2620 | SmallVector<NamedDecl *, 4> ConflictingDecls; |
2621 | unsigned IDNS = Decl::IDNS_Ordinary; |
2622 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
2623 | for (auto *FoundDecl : FoundDecls) { |
2624 | if (!FoundDecl->isInIdentifierNamespace(IDNS)) |
2625 | continue; |
2626 | if (auto *FoundAlias = dyn_cast<TypeAliasTemplateDecl>(FoundDecl)) |
2627 | return Importer.MapImported(D, FoundAlias); |
2628 | ConflictingDecls.push_back(FoundDecl); |
2629 | } |
2630 | |
2631 | if (!ConflictingDecls.empty()) { |
2632 | ExpectedName NameOrErr = Importer.HandleNameConflict( |
2633 | Name, DC, IDNS, ConflictingDecls.data(), ConflictingDecls.size()); |
2634 | if (NameOrErr) |
2635 | Name = NameOrErr.get(); |
2636 | else |
2637 | return NameOrErr.takeError(); |
2638 | } |
2639 | } |
2640 | |
2641 | Error Err = Error::success(); |
2642 | auto ToTemplateParameters = importChecked(Err, D->getTemplateParameters()); |
2643 | auto ToTemplatedDecl = importChecked(Err, D->getTemplatedDecl()); |
2644 | if (Err) |
2645 | return std::move(Err); |
2646 | |
2647 | TypeAliasTemplateDecl *ToAlias; |
2648 | if (GetImportedOrCreateDecl(ToAlias, D, Importer.getToContext(), DC, Loc, |
2649 | Name, ToTemplateParameters, ToTemplatedDecl)) |
2650 | return ToAlias; |
2651 | |
2652 | ToTemplatedDecl->setDescribedAliasTemplate(ToAlias); |
2653 | |
2654 | ToAlias->setAccess(D->getAccess()); |
2655 | ToAlias->setLexicalDeclContext(LexicalDC); |
2656 | LexicalDC->addDeclInternal(ToAlias); |
2657 | if (DC != Importer.getToContext().getTranslationUnitDecl()) |
2658 | updateLookupTableForTemplateParameters(*ToTemplateParameters); |
2659 | return ToAlias; |
2660 | } |
2661 | |
2662 | ExpectedDecl ASTNodeImporter::VisitLabelDecl(LabelDecl *D) { |
2663 | // Import the major distinguishing characteristics of this label. |
2664 | DeclContext *DC, *LexicalDC; |
2665 | DeclarationName Name; |
2666 | SourceLocation Loc; |
2667 | NamedDecl *ToD; |
2668 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
2669 | return std::move(Err); |
2670 | if (ToD) |
2671 | return ToD; |
2672 | |
2673 | assert(LexicalDC->isFunctionOrMethod())((void)0); |
2674 | |
2675 | LabelDecl *ToLabel; |
2676 | if (D->isGnuLocal()) { |
2677 | ExpectedSLoc BeginLocOrErr = import(D->getBeginLoc()); |
2678 | if (!BeginLocOrErr) |
2679 | return BeginLocOrErr.takeError(); |
2680 | if (GetImportedOrCreateDecl(ToLabel, D, Importer.getToContext(), DC, Loc, |
2681 | Name.getAsIdentifierInfo(), *BeginLocOrErr)) |
2682 | return ToLabel; |
2683 | |
2684 | } else { |
2685 | if (GetImportedOrCreateDecl(ToLabel, D, Importer.getToContext(), DC, Loc, |
2686 | Name.getAsIdentifierInfo())) |
2687 | return ToLabel; |
2688 | |
2689 | } |
2690 | |
2691 | Expected<LabelStmt *> ToStmtOrErr = import(D->getStmt()); |
2692 | if (!ToStmtOrErr) |
2693 | return ToStmtOrErr.takeError(); |
2694 | |
2695 | ToLabel->setStmt(*ToStmtOrErr); |
2696 | ToLabel->setLexicalDeclContext(LexicalDC); |
2697 | LexicalDC->addDeclInternal(ToLabel); |
2698 | return ToLabel; |
2699 | } |
2700 | |
2701 | ExpectedDecl ASTNodeImporter::VisitEnumDecl(EnumDecl *D) { |
2702 | // Import the major distinguishing characteristics of this enum. |
2703 | DeclContext *DC, *LexicalDC; |
2704 | DeclarationName Name; |
2705 | SourceLocation Loc; |
2706 | NamedDecl *ToD; |
2707 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
2708 | return std::move(Err); |
2709 | if (ToD) |
2710 | return ToD; |
2711 | |
2712 | // Figure out what enum name we're looking for. |
2713 | unsigned IDNS = Decl::IDNS_Tag; |
2714 | DeclarationName SearchName = Name; |
2715 | if (!SearchName && D->getTypedefNameForAnonDecl()) { |
2716 | if (Error Err = importInto( |
2717 | SearchName, D->getTypedefNameForAnonDecl()->getDeclName())) |
2718 | return std::move(Err); |
2719 | IDNS = Decl::IDNS_Ordinary; |
2720 | } else if (Importer.getToContext().getLangOpts().CPlusPlus) |
2721 | IDNS |= Decl::IDNS_Ordinary; |
2722 | |
2723 | // We may already have an enum of the same name; try to find and match it. |
2724 | EnumDecl *PrevDecl = nullptr; |
2725 | if (!DC->isFunctionOrMethod() && SearchName) { |
2726 | SmallVector<NamedDecl *, 4> ConflictingDecls; |
2727 | auto FoundDecls = |
2728 | Importer.findDeclsInToCtx(DC, SearchName); |
2729 | for (auto *FoundDecl : FoundDecls) { |
2730 | if (!FoundDecl->isInIdentifierNamespace(IDNS)) |
2731 | continue; |
2732 | |
2733 | if (auto *Typedef = dyn_cast<TypedefNameDecl>(FoundDecl)) { |
2734 | if (const auto *Tag = Typedef->getUnderlyingType()->getAs<TagType>()) |
2735 | FoundDecl = Tag->getDecl(); |
2736 | } |
2737 | |
2738 | if (auto *FoundEnum = dyn_cast<EnumDecl>(FoundDecl)) { |
2739 | if (!hasSameVisibilityContextAndLinkage(FoundEnum, D)) |
2740 | continue; |
2741 | if (IsStructuralMatch(D, FoundEnum)) { |
2742 | EnumDecl *FoundDef = FoundEnum->getDefinition(); |
2743 | if (D->isThisDeclarationADefinition() && FoundDef) |
2744 | return Importer.MapImported(D, FoundDef); |
2745 | PrevDecl = FoundEnum->getMostRecentDecl(); |
2746 | break; |
2747 | } |
2748 | ConflictingDecls.push_back(FoundDecl); |
2749 | } |
2750 | } |
2751 | |
2752 | if (!ConflictingDecls.empty()) { |
2753 | ExpectedName NameOrErr = Importer.HandleNameConflict( |
2754 | SearchName, DC, IDNS, ConflictingDecls.data(), |
2755 | ConflictingDecls.size()); |
2756 | if (NameOrErr) |
2757 | Name = NameOrErr.get(); |
2758 | else |
2759 | return NameOrErr.takeError(); |
2760 | } |
2761 | } |
2762 | |
2763 | Error Err = Error::success(); |
2764 | auto ToBeginLoc = importChecked(Err, D->getBeginLoc()); |
2765 | auto ToQualifierLoc = importChecked(Err, D->getQualifierLoc()); |
2766 | auto ToIntegerType = importChecked(Err, D->getIntegerType()); |
2767 | auto ToBraceRange = importChecked(Err, D->getBraceRange()); |
2768 | if (Err) |
2769 | return std::move(Err); |
2770 | |
2771 | // Create the enum declaration. |
2772 | EnumDecl *D2; |
2773 | if (GetImportedOrCreateDecl( |
2774 | D2, D, Importer.getToContext(), DC, ToBeginLoc, |
2775 | Loc, Name.getAsIdentifierInfo(), PrevDecl, D->isScoped(), |
2776 | D->isScopedUsingClassTag(), D->isFixed())) |
2777 | return D2; |
2778 | |
2779 | D2->setQualifierInfo(ToQualifierLoc); |
2780 | D2->setIntegerType(ToIntegerType); |
2781 | D2->setBraceRange(ToBraceRange); |
2782 | D2->setAccess(D->getAccess()); |
2783 | D2->setLexicalDeclContext(LexicalDC); |
2784 | addDeclToContexts(D, D2); |
2785 | |
2786 | if (MemberSpecializationInfo *MemberInfo = D->getMemberSpecializationInfo()) { |
2787 | TemplateSpecializationKind SK = MemberInfo->getTemplateSpecializationKind(); |
2788 | EnumDecl *FromInst = D->getInstantiatedFromMemberEnum(); |
2789 | if (Expected<EnumDecl *> ToInstOrErr = import(FromInst)) |
2790 | D2->setInstantiationOfMemberEnum(*ToInstOrErr, SK); |
2791 | else |
2792 | return ToInstOrErr.takeError(); |
2793 | if (ExpectedSLoc POIOrErr = import(MemberInfo->getPointOfInstantiation())) |
2794 | D2->getMemberSpecializationInfo()->setPointOfInstantiation(*POIOrErr); |
2795 | else |
2796 | return POIOrErr.takeError(); |
2797 | } |
2798 | |
2799 | // Import the definition |
2800 | if (D->isCompleteDefinition()) |
2801 | if (Error Err = ImportDefinition(D, D2)) |
2802 | return std::move(Err); |
2803 | |
2804 | return D2; |
2805 | } |
2806 | |
2807 | ExpectedDecl ASTNodeImporter::VisitRecordDecl(RecordDecl *D) { |
2808 | bool IsFriendTemplate = false; |
2809 | if (auto *DCXX = dyn_cast<CXXRecordDecl>(D)) { |
2810 | IsFriendTemplate = |
2811 | DCXX->getDescribedClassTemplate() && |
2812 | DCXX->getDescribedClassTemplate()->getFriendObjectKind() != |
2813 | Decl::FOK_None; |
2814 | } |
2815 | |
2816 | // Import the major distinguishing characteristics of this record. |
2817 | DeclContext *DC = nullptr, *LexicalDC = nullptr; |
2818 | DeclarationName Name; |
2819 | SourceLocation Loc; |
2820 | NamedDecl *ToD = nullptr; |
2821 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
2822 | return std::move(Err); |
2823 | if (ToD) |
2824 | return ToD; |
2825 | |
2826 | // Figure out what structure name we're looking for. |
2827 | unsigned IDNS = Decl::IDNS_Tag; |
2828 | DeclarationName SearchName = Name; |
2829 | if (!SearchName && D->getTypedefNameForAnonDecl()) { |
2830 | if (Error Err = importInto( |
2831 | SearchName, D->getTypedefNameForAnonDecl()->getDeclName())) |
2832 | return std::move(Err); |
2833 | IDNS = Decl::IDNS_Ordinary; |
2834 | } else if (Importer.getToContext().getLangOpts().CPlusPlus) |
2835 | IDNS |= Decl::IDNS_Ordinary | Decl::IDNS_TagFriend; |
2836 | |
2837 | // We may already have a record of the same name; try to find and match it. |
2838 | RecordDecl *PrevDecl = nullptr; |
2839 | if (!DC->isFunctionOrMethod() && !D->isLambda()) { |
2840 | SmallVector<NamedDecl *, 4> ConflictingDecls; |
2841 | auto FoundDecls = |
2842 | Importer.findDeclsInToCtx(DC, SearchName); |
2843 | if (!FoundDecls.empty()) { |
2844 | // We're going to have to compare D against potentially conflicting Decls, |
2845 | // so complete it. |
2846 | if (D->hasExternalLexicalStorage() && !D->isCompleteDefinition()) |
2847 | D->getASTContext().getExternalSource()->CompleteType(D); |
2848 | } |
2849 | |
2850 | for (auto *FoundDecl : FoundDecls) { |
2851 | if (!FoundDecl->isInIdentifierNamespace(IDNS)) |
2852 | continue; |
2853 | |
2854 | Decl *Found = FoundDecl; |
2855 | if (auto *Typedef = dyn_cast<TypedefNameDecl>(Found)) { |
2856 | if (const auto *Tag = Typedef->getUnderlyingType()->getAs<TagType>()) |
2857 | Found = Tag->getDecl(); |
2858 | } |
2859 | |
2860 | if (auto *FoundRecord = dyn_cast<RecordDecl>(Found)) { |
2861 | // Do not emit false positive diagnostic in case of unnamed |
2862 | // struct/union and in case of anonymous structs. Would be false |
2863 | // because there may be several anonymous/unnamed structs in a class. |
2864 | // E.g. these are both valid: |
2865 | // struct A { // unnamed structs |
2866 | // struct { struct A *next; } entry0; |
2867 | // struct { struct A *next; } entry1; |
2868 | // }; |
2869 | // struct X { struct { int a; }; struct { int b; }; }; // anon structs |
2870 | if (!SearchName) |
2871 | if (!IsStructuralMatch(D, FoundRecord, false)) |
2872 | continue; |
2873 | |
2874 | if (!hasSameVisibilityContextAndLinkage(FoundRecord, D)) |
2875 | continue; |
2876 | |
2877 | if (IsStructuralMatch(D, FoundRecord)) { |
2878 | RecordDecl *FoundDef = FoundRecord->getDefinition(); |
2879 | if (D->isThisDeclarationADefinition() && FoundDef) { |
2880 | // FIXME: Structural equivalence check should check for same |
2881 | // user-defined methods. |
2882 | Importer.MapImported(D, FoundDef); |
2883 | if (const auto *DCXX = dyn_cast<CXXRecordDecl>(D)) { |
2884 | auto *FoundCXX = dyn_cast<CXXRecordDecl>(FoundDef); |
2885 | assert(FoundCXX && "Record type mismatch")((void)0); |
2886 | |
2887 | if (!Importer.isMinimalImport()) |
2888 | // FoundDef may not have every implicit method that D has |
2889 | // because implicit methods are created only if they are used. |
2890 | if (Error Err = ImportImplicitMethods(DCXX, FoundCXX)) |
2891 | return std::move(Err); |
2892 | } |
2893 | } |
2894 | PrevDecl = FoundRecord->getMostRecentDecl(); |
2895 | break; |
2896 | } |
2897 | ConflictingDecls.push_back(FoundDecl); |
2898 | } // kind is RecordDecl |
2899 | } // for |
2900 | |
2901 | if (!ConflictingDecls.empty() && SearchName) { |
2902 | ExpectedName NameOrErr = Importer.HandleNameConflict( |
2903 | SearchName, DC, IDNS, ConflictingDecls.data(), |
2904 | ConflictingDecls.size()); |
2905 | if (NameOrErr) |
2906 | Name = NameOrErr.get(); |
2907 | else |
2908 | return NameOrErr.takeError(); |
2909 | } |
2910 | } |
2911 | |
2912 | ExpectedSLoc BeginLocOrErr = import(D->getBeginLoc()); |
2913 | if (!BeginLocOrErr) |
2914 | return BeginLocOrErr.takeError(); |
2915 | |
2916 | // Create the record declaration. |
2917 | RecordDecl *D2 = nullptr; |
2918 | CXXRecordDecl *D2CXX = nullptr; |
2919 | if (auto *DCXX = dyn_cast<CXXRecordDecl>(D)) { |
2920 | if (DCXX->isLambda()) { |
2921 | auto TInfoOrErr = import(DCXX->getLambdaTypeInfo()); |
2922 | if (!TInfoOrErr) |
2923 | return TInfoOrErr.takeError(); |
2924 | if (GetImportedOrCreateSpecialDecl( |
2925 | D2CXX, CXXRecordDecl::CreateLambda, D, Importer.getToContext(), |
2926 | DC, *TInfoOrErr, Loc, DCXX->isDependentLambda(), |
2927 | DCXX->isGenericLambda(), DCXX->getLambdaCaptureDefault())) |
2928 | return D2CXX; |
2929 | ExpectedDecl CDeclOrErr = import(DCXX->getLambdaContextDecl()); |
2930 | if (!CDeclOrErr) |
2931 | return CDeclOrErr.takeError(); |
2932 | D2CXX->setLambdaMangling(DCXX->getLambdaManglingNumber(), *CDeclOrErr, |
2933 | DCXX->hasKnownLambdaInternalLinkage()); |
2934 | D2CXX->setDeviceLambdaManglingNumber( |
2935 | DCXX->getDeviceLambdaManglingNumber()); |
2936 | } else if (DCXX->isInjectedClassName()) { |
2937 | // We have to be careful to do a similar dance to the one in |
2938 | // Sema::ActOnStartCXXMemberDeclarations |
2939 | const bool DelayTypeCreation = true; |
2940 | if (GetImportedOrCreateDecl( |
2941 | D2CXX, D, Importer.getToContext(), D->getTagKind(), DC, |
2942 | *BeginLocOrErr, Loc, Name.getAsIdentifierInfo(), |
2943 | cast_or_null<CXXRecordDecl>(PrevDecl), DelayTypeCreation)) |
2944 | return D2CXX; |
2945 | Importer.getToContext().getTypeDeclType( |
2946 | D2CXX, dyn_cast<CXXRecordDecl>(DC)); |
2947 | } else { |
2948 | if (GetImportedOrCreateDecl(D2CXX, D, Importer.getToContext(), |
2949 | D->getTagKind(), DC, *BeginLocOrErr, Loc, |
2950 | Name.getAsIdentifierInfo(), |
2951 | cast_or_null<CXXRecordDecl>(PrevDecl))) |
2952 | return D2CXX; |
2953 | } |
2954 | |
2955 | D2 = D2CXX; |
2956 | D2->setAccess(D->getAccess()); |
2957 | D2->setLexicalDeclContext(LexicalDC); |
2958 | addDeclToContexts(D, D2); |
2959 | |
2960 | if (ClassTemplateDecl *FromDescribed = |
2961 | DCXX->getDescribedClassTemplate()) { |
2962 | ClassTemplateDecl *ToDescribed; |
2963 | if (Error Err = importInto(ToDescribed, FromDescribed)) |
2964 | return std::move(Err); |
2965 | D2CXX->setDescribedClassTemplate(ToDescribed); |
2966 | if (!DCXX->isInjectedClassName() && !IsFriendTemplate) { |
2967 | // In a record describing a template the type should be an |
2968 | // InjectedClassNameType (see Sema::CheckClassTemplate). Update the |
2969 | // previously set type to the correct value here (ToDescribed is not |
2970 | // available at record create). |
2971 | // FIXME: The previous type is cleared but not removed from |
2972 | // ASTContext's internal storage. |
2973 | CXXRecordDecl *Injected = nullptr; |
2974 | for (NamedDecl *Found : D2CXX->noload_lookup(Name)) { |
2975 | auto *Record = dyn_cast<CXXRecordDecl>(Found); |
2976 | if (Record && Record->isInjectedClassName()) { |
2977 | Injected = Record; |
2978 | break; |
2979 | } |
2980 | } |
2981 | // Create an injected type for the whole redecl chain. |
2982 | SmallVector<Decl *, 2> Redecls = |
2983 | getCanonicalForwardRedeclChain(D2CXX); |
2984 | for (auto *R : Redecls) { |
2985 | auto *RI = cast<CXXRecordDecl>(R); |
2986 | RI->setTypeForDecl(nullptr); |
2987 | // Below we create a new injected type and assign that to the |
2988 | // canonical decl, subsequent declarations in the chain will reuse |
2989 | // that type. |
2990 | Importer.getToContext().getInjectedClassNameType( |
2991 | RI, ToDescribed->getInjectedClassNameSpecialization()); |
2992 | } |
2993 | // Set the new type for the previous injected decl too. |
2994 | if (Injected) { |
2995 | Injected->setTypeForDecl(nullptr); |
2996 | Importer.getToContext().getTypeDeclType(Injected, D2CXX); |
2997 | } |
2998 | } |
2999 | } else if (MemberSpecializationInfo *MemberInfo = |
3000 | DCXX->getMemberSpecializationInfo()) { |
3001 | TemplateSpecializationKind SK = |
3002 | MemberInfo->getTemplateSpecializationKind(); |
3003 | CXXRecordDecl *FromInst = DCXX->getInstantiatedFromMemberClass(); |
3004 | |
3005 | if (Expected<CXXRecordDecl *> ToInstOrErr = import(FromInst)) |
3006 | D2CXX->setInstantiationOfMemberClass(*ToInstOrErr, SK); |
3007 | else |
3008 | return ToInstOrErr.takeError(); |
3009 | |
3010 | if (ExpectedSLoc POIOrErr = |
3011 | import(MemberInfo->getPointOfInstantiation())) |
3012 | D2CXX->getMemberSpecializationInfo()->setPointOfInstantiation( |
3013 | *POIOrErr); |
3014 | else |
3015 | return POIOrErr.takeError(); |
3016 | } |
3017 | |
3018 | } else { |
3019 | if (GetImportedOrCreateDecl(D2, D, Importer.getToContext(), |
3020 | D->getTagKind(), DC, *BeginLocOrErr, Loc, |
3021 | Name.getAsIdentifierInfo(), PrevDecl)) |
3022 | return D2; |
3023 | D2->setLexicalDeclContext(LexicalDC); |
3024 | addDeclToContexts(D, D2); |
3025 | } |
3026 | |
3027 | if (auto BraceRangeOrErr = import(D->getBraceRange())) |
3028 | D2->setBraceRange(*BraceRangeOrErr); |
3029 | else |
3030 | return BraceRangeOrErr.takeError(); |
3031 | if (auto QualifierLocOrErr = import(D->getQualifierLoc())) |
3032 | D2->setQualifierInfo(*QualifierLocOrErr); |
3033 | else |
3034 | return QualifierLocOrErr.takeError(); |
3035 | |
3036 | if (D->isAnonymousStructOrUnion()) |
3037 | D2->setAnonymousStructOrUnion(true); |
3038 | |
3039 | if (D->isCompleteDefinition()) |
3040 | if (Error Err = ImportDefinition(D, D2, IDK_Default)) |
3041 | return std::move(Err); |
3042 | |
3043 | return D2; |
3044 | } |
3045 | |
3046 | ExpectedDecl ASTNodeImporter::VisitEnumConstantDecl(EnumConstantDecl *D) { |
3047 | // Import the major distinguishing characteristics of this enumerator. |
3048 | DeclContext *DC, *LexicalDC; |
3049 | DeclarationName Name; |
3050 | SourceLocation Loc; |
3051 | NamedDecl *ToD; |
3052 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
3053 | return std::move(Err); |
3054 | if (ToD) |
3055 | return ToD; |
3056 | |
3057 | // Determine whether there are any other declarations with the same name and |
3058 | // in the same context. |
3059 | if (!LexicalDC->isFunctionOrMethod()) { |
3060 | SmallVector<NamedDecl *, 4> ConflictingDecls; |
3061 | unsigned IDNS = Decl::IDNS_Ordinary; |
3062 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
3063 | for (auto *FoundDecl : FoundDecls) { |
3064 | if (!FoundDecl->isInIdentifierNamespace(IDNS)) |
3065 | continue; |
3066 | |
3067 | if (auto *FoundEnumConstant = dyn_cast<EnumConstantDecl>(FoundDecl)) { |
3068 | if (IsStructuralMatch(D, FoundEnumConstant)) |
3069 | return Importer.MapImported(D, FoundEnumConstant); |
3070 | ConflictingDecls.push_back(FoundDecl); |
3071 | } |
3072 | } |
3073 | |
3074 | if (!ConflictingDecls.empty()) { |
3075 | ExpectedName NameOrErr = Importer.HandleNameConflict( |
3076 | Name, DC, IDNS, ConflictingDecls.data(), ConflictingDecls.size()); |
3077 | if (NameOrErr) |
3078 | Name = NameOrErr.get(); |
3079 | else |
3080 | return NameOrErr.takeError(); |
3081 | } |
3082 | } |
3083 | |
3084 | ExpectedType TypeOrErr = import(D->getType()); |
3085 | if (!TypeOrErr) |
3086 | return TypeOrErr.takeError(); |
3087 | |
3088 | ExpectedExpr InitOrErr = import(D->getInitExpr()); |
3089 | if (!InitOrErr) |
3090 | return InitOrErr.takeError(); |
3091 | |
3092 | EnumConstantDecl *ToEnumerator; |
3093 | if (GetImportedOrCreateDecl( |
3094 | ToEnumerator, D, Importer.getToContext(), cast<EnumDecl>(DC), Loc, |
3095 | Name.getAsIdentifierInfo(), *TypeOrErr, *InitOrErr, D->getInitVal())) |
3096 | return ToEnumerator; |
3097 | |
3098 | ToEnumerator->setAccess(D->getAccess()); |
3099 | ToEnumerator->setLexicalDeclContext(LexicalDC); |
3100 | LexicalDC->addDeclInternal(ToEnumerator); |
3101 | return ToEnumerator; |
3102 | } |
3103 | |
3104 | Error ASTNodeImporter::ImportTemplateParameterLists(const DeclaratorDecl *FromD, |
3105 | DeclaratorDecl *ToD) { |
3106 | unsigned int Num = FromD->getNumTemplateParameterLists(); |
3107 | if (Num == 0) |
3108 | return Error::success(); |
3109 | SmallVector<TemplateParameterList *, 2> ToTPLists(Num); |
3110 | for (unsigned int I = 0; I < Num; ++I) |
3111 | if (Expected<TemplateParameterList *> ToTPListOrErr = |
3112 | import(FromD->getTemplateParameterList(I))) |
3113 | ToTPLists[I] = *ToTPListOrErr; |
3114 | else |
3115 | return ToTPListOrErr.takeError(); |
3116 | ToD->setTemplateParameterListsInfo(Importer.ToContext, ToTPLists); |
3117 | return Error::success(); |
3118 | } |
3119 | |
3120 | Error ASTNodeImporter::ImportTemplateInformation( |
3121 | FunctionDecl *FromFD, FunctionDecl *ToFD) { |
3122 | switch (FromFD->getTemplatedKind()) { |
3123 | case FunctionDecl::TK_NonTemplate: |
3124 | case FunctionDecl::TK_FunctionTemplate: |
3125 | return Error::success(); |
3126 | |
3127 | case FunctionDecl::TK_MemberSpecialization: { |
3128 | TemplateSpecializationKind TSK = FromFD->getTemplateSpecializationKind(); |
3129 | |
3130 | if (Expected<FunctionDecl *> InstFDOrErr = |
3131 | import(FromFD->getInstantiatedFromMemberFunction())) |
3132 | ToFD->setInstantiationOfMemberFunction(*InstFDOrErr, TSK); |
3133 | else |
3134 | return InstFDOrErr.takeError(); |
3135 | |
3136 | if (ExpectedSLoc POIOrErr = import( |
3137 | FromFD->getMemberSpecializationInfo()->getPointOfInstantiation())) |
3138 | ToFD->getMemberSpecializationInfo()->setPointOfInstantiation(*POIOrErr); |
3139 | else |
3140 | return POIOrErr.takeError(); |
3141 | |
3142 | return Error::success(); |
3143 | } |
3144 | |
3145 | case FunctionDecl::TK_FunctionTemplateSpecialization: { |
3146 | auto FunctionAndArgsOrErr = |
3147 | ImportFunctionTemplateWithTemplateArgsFromSpecialization(FromFD); |
3148 | if (!FunctionAndArgsOrErr) |
3149 | return FunctionAndArgsOrErr.takeError(); |
3150 | |
3151 | TemplateArgumentList *ToTAList = TemplateArgumentList::CreateCopy( |
3152 | Importer.getToContext(), std::get<1>(*FunctionAndArgsOrErr)); |
3153 | |
3154 | auto *FTSInfo = FromFD->getTemplateSpecializationInfo(); |
3155 | TemplateArgumentListInfo ToTAInfo; |
3156 | const auto *FromTAArgsAsWritten = FTSInfo->TemplateArgumentsAsWritten; |
3157 | if (FromTAArgsAsWritten) |
3158 | if (Error Err = ImportTemplateArgumentListInfo( |
3159 | *FromTAArgsAsWritten, ToTAInfo)) |
3160 | return Err; |
3161 | |
3162 | ExpectedSLoc POIOrErr = import(FTSInfo->getPointOfInstantiation()); |
3163 | if (!POIOrErr) |
3164 | return POIOrErr.takeError(); |
3165 | |
3166 | if (Error Err = ImportTemplateParameterLists(FromFD, ToFD)) |
3167 | return Err; |
3168 | |
3169 | TemplateSpecializationKind TSK = FTSInfo->getTemplateSpecializationKind(); |
3170 | ToFD->setFunctionTemplateSpecialization( |
3171 | std::get<0>(*FunctionAndArgsOrErr), ToTAList, /* InsertPos= */ nullptr, |
3172 | TSK, FromTAArgsAsWritten ? &ToTAInfo : nullptr, *POIOrErr); |
3173 | return Error::success(); |
3174 | } |
3175 | |
3176 | case FunctionDecl::TK_DependentFunctionTemplateSpecialization: { |
3177 | auto *FromInfo = FromFD->getDependentSpecializationInfo(); |
3178 | UnresolvedSet<8> TemplDecls; |
3179 | unsigned NumTemplates = FromInfo->getNumTemplates(); |
3180 | for (unsigned I = 0; I < NumTemplates; I++) { |
3181 | if (Expected<FunctionTemplateDecl *> ToFTDOrErr = |
3182 | import(FromInfo->getTemplate(I))) |
3183 | TemplDecls.addDecl(*ToFTDOrErr); |
3184 | else |
3185 | return ToFTDOrErr.takeError(); |
3186 | } |
3187 | |
3188 | // Import TemplateArgumentListInfo. |
3189 | TemplateArgumentListInfo ToTAInfo; |
3190 | if (Error Err = ImportTemplateArgumentListInfo( |
3191 | FromInfo->getLAngleLoc(), FromInfo->getRAngleLoc(), |
3192 | llvm::makeArrayRef( |
3193 | FromInfo->getTemplateArgs(), FromInfo->getNumTemplateArgs()), |
3194 | ToTAInfo)) |
3195 | return Err; |
3196 | |
3197 | ToFD->setDependentTemplateSpecialization(Importer.getToContext(), |
3198 | TemplDecls, ToTAInfo); |
3199 | return Error::success(); |
3200 | } |
3201 | } |
3202 | llvm_unreachable("All cases should be covered!")__builtin_unreachable(); |
3203 | } |
3204 | |
3205 | Expected<FunctionDecl *> |
3206 | ASTNodeImporter::FindFunctionTemplateSpecialization(FunctionDecl *FromFD) { |
3207 | auto FunctionAndArgsOrErr = |
3208 | ImportFunctionTemplateWithTemplateArgsFromSpecialization(FromFD); |
3209 | if (!FunctionAndArgsOrErr) |
3210 | return FunctionAndArgsOrErr.takeError(); |
3211 | |
3212 | FunctionTemplateDecl *Template; |
3213 | TemplateArgsTy ToTemplArgs; |
3214 | std::tie(Template, ToTemplArgs) = *FunctionAndArgsOrErr; |
3215 | void *InsertPos = nullptr; |
3216 | auto *FoundSpec = Template->findSpecialization(ToTemplArgs, InsertPos); |
3217 | return FoundSpec; |
3218 | } |
3219 | |
3220 | Error ASTNodeImporter::ImportFunctionDeclBody(FunctionDecl *FromFD, |
3221 | FunctionDecl *ToFD) { |
3222 | if (Stmt *FromBody = FromFD->getBody()) { |
3223 | if (ExpectedStmt ToBodyOrErr = import(FromBody)) |
3224 | ToFD->setBody(*ToBodyOrErr); |
3225 | else |
3226 | return ToBodyOrErr.takeError(); |
3227 | } |
3228 | return Error::success(); |
3229 | } |
3230 | |
3231 | // Returns true if the given D has a DeclContext up to the TranslationUnitDecl |
3232 | // which is equal to the given DC. |
3233 | static bool isAncestorDeclContextOf(const DeclContext *DC, const Decl *D) { |
3234 | const DeclContext *DCi = D->getDeclContext(); |
3235 | while (DCi != D->getTranslationUnitDecl()) { |
3236 | if (DCi == DC) |
3237 | return true; |
3238 | DCi = DCi->getParent(); |
3239 | } |
3240 | return false; |
3241 | } |
3242 | |
3243 | bool ASTNodeImporter::hasAutoReturnTypeDeclaredInside(FunctionDecl *D) { |
3244 | QualType FromTy = D->getType(); |
3245 | const FunctionProtoType *FromFPT = FromTy->getAs<FunctionProtoType>(); |
3246 | assert(FromFPT && "Must be called on FunctionProtoType")((void)0); |
3247 | if (AutoType *AutoT = FromFPT->getReturnType()->getContainedAutoType()) { |
3248 | QualType DeducedT = AutoT->getDeducedType(); |
3249 | if (const RecordType *RecordT = |
3250 | DeducedT.isNull() ? nullptr : dyn_cast<RecordType>(DeducedT)) { |
3251 | RecordDecl *RD = RecordT->getDecl(); |
3252 | assert(RD)((void)0); |
3253 | if (isAncestorDeclContextOf(D, RD)) { |
3254 | assert(RD->getLexicalDeclContext() == RD->getDeclContext())((void)0); |
3255 | return true; |
3256 | } |
3257 | } |
3258 | } |
3259 | if (const TypedefType *TypedefT = |
3260 | dyn_cast<TypedefType>(FromFPT->getReturnType())) { |
3261 | TypedefNameDecl *TD = TypedefT->getDecl(); |
3262 | assert(TD)((void)0); |
3263 | if (isAncestorDeclContextOf(D, TD)) { |
3264 | assert(TD->getLexicalDeclContext() == TD->getDeclContext())((void)0); |
3265 | return true; |
3266 | } |
3267 | } |
3268 | return false; |
3269 | } |
3270 | |
3271 | ExplicitSpecifier |
3272 | ASTNodeImporter::importExplicitSpecifier(Error &Err, ExplicitSpecifier ESpec) { |
3273 | Expr *ExplicitExpr = ESpec.getExpr(); |
3274 | if (ExplicitExpr) |
3275 | ExplicitExpr = importChecked(Err, ESpec.getExpr()); |
3276 | return ExplicitSpecifier(ExplicitExpr, ESpec.getKind()); |
3277 | } |
3278 | |
3279 | ExpectedDecl ASTNodeImporter::VisitFunctionDecl(FunctionDecl *D) { |
3280 | |
3281 | SmallVector<Decl *, 2> Redecls = getCanonicalForwardRedeclChain(D); |
3282 | auto RedeclIt = Redecls.begin(); |
3283 | // Import the first part of the decl chain. I.e. import all previous |
3284 | // declarations starting from the canonical decl. |
3285 | for (; RedeclIt != Redecls.end() && *RedeclIt != D; ++RedeclIt) { |
3286 | ExpectedDecl ToRedeclOrErr = import(*RedeclIt); |
3287 | if (!ToRedeclOrErr) |
3288 | return ToRedeclOrErr.takeError(); |
3289 | } |
3290 | assert(*RedeclIt == D)((void)0); |
3291 | |
3292 | // Import the major distinguishing characteristics of this function. |
3293 | DeclContext *DC, *LexicalDC; |
3294 | DeclarationName Name; |
3295 | SourceLocation Loc; |
3296 | NamedDecl *ToD; |
3297 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
3298 | return std::move(Err); |
3299 | if (ToD) |
3300 | return ToD; |
3301 | |
3302 | FunctionDecl *FoundByLookup = nullptr; |
3303 | FunctionTemplateDecl *FromFT = D->getDescribedFunctionTemplate(); |
3304 | |
3305 | // If this is a function template specialization, then try to find the same |
3306 | // existing specialization in the "to" context. The lookup below will not |
3307 | // find any specialization, but would find the primary template; thus, we |
3308 | // have to skip normal lookup in case of specializations. |
3309 | // FIXME handle member function templates (TK_MemberSpecialization) similarly? |
3310 | if (D->getTemplatedKind() == |
3311 | FunctionDecl::TK_FunctionTemplateSpecialization) { |
3312 | auto FoundFunctionOrErr = FindFunctionTemplateSpecialization(D); |
3313 | if (!FoundFunctionOrErr) |
3314 | return FoundFunctionOrErr.takeError(); |
3315 | if (FunctionDecl *FoundFunction = *FoundFunctionOrErr) { |
3316 | if (Decl *Def = FindAndMapDefinition(D, FoundFunction)) |
3317 | return Def; |
3318 | FoundByLookup = FoundFunction; |
3319 | } |
3320 | } |
3321 | // Try to find a function in our own ("to") context with the same name, same |
3322 | // type, and in the same context as the function we're importing. |
3323 | else if (!LexicalDC->isFunctionOrMethod()) { |
3324 | SmallVector<NamedDecl *, 4> ConflictingDecls; |
3325 | unsigned IDNS = Decl::IDNS_Ordinary | Decl::IDNS_OrdinaryFriend; |
3326 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
3327 | for (auto *FoundDecl : FoundDecls) { |
3328 | if (!FoundDecl->isInIdentifierNamespace(IDNS)) |
3329 | continue; |
3330 | |
3331 | if (auto *FoundFunction = dyn_cast<FunctionDecl>(FoundDecl)) { |
3332 | if (!hasSameVisibilityContextAndLinkage(FoundFunction, D)) |
3333 | continue; |
3334 | |
3335 | if (IsStructuralMatch(D, FoundFunction)) { |
3336 | if (Decl *Def = FindAndMapDefinition(D, FoundFunction)) |
3337 | return Def; |
3338 | FoundByLookup = FoundFunction; |
3339 | break; |
3340 | } |
3341 | // FIXME: Check for overloading more carefully, e.g., by boosting |
3342 | // Sema::IsOverload out to the AST library. |
3343 | |
3344 | // Function overloading is okay in C++. |
3345 | if (Importer.getToContext().getLangOpts().CPlusPlus) |
3346 | continue; |
3347 | |
3348 | // Complain about inconsistent function types. |
3349 | Importer.ToDiag(Loc, diag::warn_odr_function_type_inconsistent) |
3350 | << Name << D->getType() << FoundFunction->getType(); |
3351 | Importer.ToDiag(FoundFunction->getLocation(), diag::note_odr_value_here) |
3352 | << FoundFunction->getType(); |
3353 | ConflictingDecls.push_back(FoundDecl); |
3354 | } |
3355 | } |
3356 | |
3357 | if (!ConflictingDecls.empty()) { |
3358 | ExpectedName NameOrErr = Importer.HandleNameConflict( |
3359 | Name, DC, IDNS, ConflictingDecls.data(), ConflictingDecls.size()); |
3360 | if (NameOrErr) |
3361 | Name = NameOrErr.get(); |
3362 | else |
3363 | return NameOrErr.takeError(); |
3364 | } |
3365 | } |
3366 | |
3367 | // We do not allow more than one in-class declaration of a function. This is |
3368 | // because AST clients like VTableBuilder asserts on this. VTableBuilder |
3369 | // assumes there is only one in-class declaration. Building a redecl |
3370 | // chain would result in more than one in-class declaration for |
3371 | // overrides (even if they are part of the same redecl chain inside the |
3372 | // derived class.) |
3373 | if (FoundByLookup) { |
3374 | if (isa<CXXMethodDecl>(FoundByLookup)) { |
3375 | if (D->getLexicalDeclContext() == D->getDeclContext()) { |
3376 | if (!D->doesThisDeclarationHaveABody()) { |
3377 | if (FunctionTemplateDecl *DescribedD = |
3378 | D->getDescribedFunctionTemplate()) { |
3379 | // Handle a "templated" function together with its described |
3380 | // template. This avoids need for a similar check at import of the |
3381 | // described template. |
3382 | assert(FoundByLookup->getDescribedFunctionTemplate() &&((void)0) |
3383 | "Templated function mapped to non-templated?")((void)0); |
3384 | Importer.MapImported(DescribedD, |
3385 | FoundByLookup->getDescribedFunctionTemplate()); |
3386 | } |
3387 | return Importer.MapImported(D, FoundByLookup); |
3388 | } else { |
3389 | // Let's continue and build up the redecl chain in this case. |
3390 | // FIXME Merge the functions into one decl. |
3391 | } |
3392 | } |
3393 | } |
3394 | } |
3395 | |
3396 | DeclarationNameInfo NameInfo(Name, Loc); |
3397 | // Import additional name location/type info. |
3398 | if (Error Err = ImportDeclarationNameLoc(D->getNameInfo(), NameInfo)) |
3399 | return std::move(Err); |
3400 | |
3401 | QualType FromTy = D->getType(); |
3402 | // Set to true if we do not import the type of the function as is. There are |
3403 | // cases when the original type would result in an infinite recursion during |
3404 | // the import. To avoid an infinite recursion when importing, we create the |
3405 | // FunctionDecl with a simplified function type and update it only after the |
3406 | // relevant AST nodes are already imported. |
3407 | bool UsedDifferentProtoType = false; |
3408 | if (const auto *FromFPT = FromTy->getAs<FunctionProtoType>()) { |
3409 | QualType FromReturnTy = FromFPT->getReturnType(); |
3410 | // Functions with auto return type may define a struct inside their body |
3411 | // and the return type could refer to that struct. |
3412 | // E.g.: auto foo() { struct X{}; return X(); } |
3413 | // To avoid an infinite recursion when importing, create the FunctionDecl |
3414 | // with a simplified return type. |
3415 | if (hasAutoReturnTypeDeclaredInside(D)) { |
3416 | FromReturnTy = Importer.getFromContext().VoidTy; |
3417 | UsedDifferentProtoType = true; |
3418 | } |
3419 | FunctionProtoType::ExtProtoInfo FromEPI = FromFPT->getExtProtoInfo(); |
3420 | // FunctionProtoType::ExtProtoInfo's ExceptionSpecDecl can point to the |
3421 | // FunctionDecl that we are importing the FunctionProtoType for. |
3422 | // To avoid an infinite recursion when importing, create the FunctionDecl |
3423 | // with a simplified function type. |
3424 | if (FromEPI.ExceptionSpec.SourceDecl || |
3425 | FromEPI.ExceptionSpec.SourceTemplate || |
3426 | FromEPI.ExceptionSpec.NoexceptExpr) { |
3427 | FunctionProtoType::ExtProtoInfo DefaultEPI; |
3428 | FromEPI = DefaultEPI; |
3429 | UsedDifferentProtoType = true; |
3430 | } |
3431 | FromTy = Importer.getFromContext().getFunctionType( |
3432 | FromReturnTy, FromFPT->getParamTypes(), FromEPI); |
3433 | } |
3434 | |
3435 | Error Err = Error::success(); |
3436 | auto T = importChecked(Err, FromTy); |
3437 | auto TInfo = importChecked(Err, D->getTypeSourceInfo()); |
3438 | auto ToInnerLocStart = importChecked(Err, D->getInnerLocStart()); |
3439 | auto ToEndLoc = importChecked(Err, D->getEndLoc()); |
3440 | auto ToQualifierLoc = importChecked(Err, D->getQualifierLoc()); |
3441 | auto TrailingRequiresClause = |
3442 | importChecked(Err, D->getTrailingRequiresClause()); |
3443 | if (Err) |
3444 | return std::move(Err); |
3445 | |
3446 | // Import the function parameters. |
3447 | SmallVector<ParmVarDecl *, 8> Parameters; |
3448 | for (auto P : D->parameters()) { |
3449 | if (Expected<ParmVarDecl *> ToPOrErr = import(P)) |
3450 | Parameters.push_back(*ToPOrErr); |
3451 | else |
3452 | return ToPOrErr.takeError(); |
3453 | } |
3454 | |
3455 | // Create the imported function. |
3456 | FunctionDecl *ToFunction = nullptr; |
3457 | if (auto *FromConstructor = dyn_cast<CXXConstructorDecl>(D)) { |
3458 | ExplicitSpecifier ESpec = |
3459 | importExplicitSpecifier(Err, FromConstructor->getExplicitSpecifier()); |
3460 | if (Err) |
3461 | return std::move(Err); |
3462 | if (GetImportedOrCreateDecl<CXXConstructorDecl>( |
3463 | ToFunction, D, Importer.getToContext(), cast<CXXRecordDecl>(DC), |
3464 | ToInnerLocStart, NameInfo, T, TInfo, ESpec, D->isInlineSpecified(), |
3465 | D->isImplicit(), D->getConstexprKind(), |
3466 | InheritedConstructor(), // FIXME: Properly import inherited |
3467 | // constructor info |
3468 | TrailingRequiresClause)) |
3469 | return ToFunction; |
3470 | } else if (CXXDestructorDecl *FromDtor = dyn_cast<CXXDestructorDecl>(D)) { |
3471 | |
3472 | Error Err = Error::success(); |
3473 | auto ToOperatorDelete = importChecked( |
3474 | Err, const_cast<FunctionDecl *>(FromDtor->getOperatorDelete())); |
3475 | auto ToThisArg = importChecked(Err, FromDtor->getOperatorDeleteThisArg()); |
3476 | if (Err) |
3477 | return std::move(Err); |
3478 | |
3479 | if (GetImportedOrCreateDecl<CXXDestructorDecl>( |
3480 | ToFunction, D, Importer.getToContext(), cast<CXXRecordDecl>(DC), |
3481 | ToInnerLocStart, NameInfo, T, TInfo, D->isInlineSpecified(), |
3482 | D->isImplicit(), D->getConstexprKind(), TrailingRequiresClause)) |
3483 | return ToFunction; |
3484 | |
3485 | CXXDestructorDecl *ToDtor = cast<CXXDestructorDecl>(ToFunction); |
3486 | |
3487 | ToDtor->setOperatorDelete(ToOperatorDelete, ToThisArg); |
3488 | } else if (CXXConversionDecl *FromConversion = |
3489 | dyn_cast<CXXConversionDecl>(D)) { |
3490 | ExplicitSpecifier ESpec = |
3491 | importExplicitSpecifier(Err, FromConversion->getExplicitSpecifier()); |
3492 | if (Err) |
3493 | return std::move(Err); |
3494 | if (GetImportedOrCreateDecl<CXXConversionDecl>( |
3495 | ToFunction, D, Importer.getToContext(), cast<CXXRecordDecl>(DC), |
3496 | ToInnerLocStart, NameInfo, T, TInfo, D->isInlineSpecified(), ESpec, |
3497 | D->getConstexprKind(), SourceLocation(), TrailingRequiresClause)) |
3498 | return ToFunction; |
3499 | } else if (auto *Method = dyn_cast<CXXMethodDecl>(D)) { |
3500 | if (GetImportedOrCreateDecl<CXXMethodDecl>( |
3501 | ToFunction, D, Importer.getToContext(), cast<CXXRecordDecl>(DC), |
3502 | ToInnerLocStart, NameInfo, T, TInfo, Method->getStorageClass(), |
3503 | Method->isInlineSpecified(), D->getConstexprKind(), |
3504 | SourceLocation(), TrailingRequiresClause)) |
3505 | return ToFunction; |
3506 | } else if (auto *Guide = dyn_cast<CXXDeductionGuideDecl>(D)) { |
3507 | ExplicitSpecifier ESpec = |
3508 | importExplicitSpecifier(Err, Guide->getExplicitSpecifier()); |
3509 | CXXConstructorDecl *Ctor = |
3510 | importChecked(Err, Guide->getCorrespondingConstructor()); |
3511 | if (Err) |
3512 | return std::move(Err); |
3513 | if (GetImportedOrCreateDecl<CXXDeductionGuideDecl>( |
3514 | ToFunction, D, Importer.getToContext(), DC, ToInnerLocStart, ESpec, |
3515 | NameInfo, T, TInfo, ToEndLoc, Ctor)) |
3516 | return ToFunction; |
3517 | cast<CXXDeductionGuideDecl>(ToFunction) |
3518 | ->setIsCopyDeductionCandidate(Guide->isCopyDeductionCandidate()); |
3519 | } else { |
3520 | if (GetImportedOrCreateDecl( |
3521 | ToFunction, D, Importer.getToContext(), DC, ToInnerLocStart, |
3522 | NameInfo, T, TInfo, D->getStorageClass(), D->isInlineSpecified(), |
3523 | D->hasWrittenPrototype(), D->getConstexprKind(), |
3524 | TrailingRequiresClause)) |
3525 | return ToFunction; |
3526 | } |
3527 | |
3528 | // Connect the redecl chain. |
3529 | if (FoundByLookup) { |
3530 | auto *Recent = const_cast<FunctionDecl *>( |
3531 | FoundByLookup->getMostRecentDecl()); |
3532 | ToFunction->setPreviousDecl(Recent); |
3533 | // FIXME Probably we should merge exception specifications. E.g. In the |
3534 | // "To" context the existing function may have exception specification with |
3535 | // noexcept-unevaluated, while the newly imported function may have an |
3536 | // evaluated noexcept. A call to adjustExceptionSpec() on the imported |
3537 | // decl and its redeclarations may be required. |
3538 | } |
3539 | |
3540 | ToFunction->setQualifierInfo(ToQualifierLoc); |
3541 | ToFunction->setAccess(D->getAccess()); |
3542 | ToFunction->setLexicalDeclContext(LexicalDC); |
3543 | ToFunction->setVirtualAsWritten(D->isVirtualAsWritten()); |
3544 | ToFunction->setTrivial(D->isTrivial()); |
3545 | ToFunction->setPure(D->isPure()); |
3546 | ToFunction->setDefaulted(D->isDefaulted()); |
3547 | ToFunction->setExplicitlyDefaulted(D->isExplicitlyDefaulted()); |
3548 | ToFunction->setDeletedAsWritten(D->isDeletedAsWritten()); |
3549 | ToFunction->setRangeEnd(ToEndLoc); |
3550 | |
3551 | // Set the parameters. |
3552 | for (auto *Param : Parameters) { |
3553 | Param->setOwningFunction(ToFunction); |
3554 | ToFunction->addDeclInternal(Param); |
3555 | if (ASTImporterLookupTable *LT = Importer.SharedState->getLookupTable()) |
3556 | LT->update(Param, Importer.getToContext().getTranslationUnitDecl()); |
3557 | } |
3558 | ToFunction->setParams(Parameters); |
3559 | |
3560 | // We need to complete creation of FunctionProtoTypeLoc manually with setting |
3561 | // params it refers to. |
3562 | if (TInfo) { |
3563 | if (auto ProtoLoc = |
3564 | TInfo->getTypeLoc().IgnoreParens().getAs<FunctionProtoTypeLoc>()) { |
3565 | for (unsigned I = 0, N = Parameters.size(); I != N; ++I) |
3566 | ProtoLoc.setParam(I, Parameters[I]); |
3567 | } |
3568 | } |
3569 | |
3570 | // Import the describing template function, if any. |
3571 | if (FromFT) { |
3572 | auto ToFTOrErr = import(FromFT); |
3573 | if (!ToFTOrErr) |
3574 | return ToFTOrErr.takeError(); |
3575 | } |
3576 | |
3577 | // Import Ctor initializers. |
3578 | if (auto *FromConstructor = dyn_cast<CXXConstructorDecl>(D)) { |
3579 | if (unsigned NumInitializers = FromConstructor->getNumCtorInitializers()) { |
3580 | SmallVector<CXXCtorInitializer *, 4> CtorInitializers(NumInitializers); |
3581 | // Import first, then allocate memory and copy if there was no error. |
3582 | if (Error Err = ImportContainerChecked( |
3583 | FromConstructor->inits(), CtorInitializers)) |
3584 | return std::move(Err); |
3585 | auto **Memory = |
3586 | new (Importer.getToContext()) CXXCtorInitializer *[NumInitializers]; |
3587 | std::copy(CtorInitializers.begin(), CtorInitializers.end(), Memory); |
3588 | auto *ToCtor = cast<CXXConstructorDecl>(ToFunction); |
3589 | ToCtor->setCtorInitializers(Memory); |
3590 | ToCtor->setNumCtorInitializers(NumInitializers); |
3591 | } |
3592 | } |
3593 | |
3594 | if (D->doesThisDeclarationHaveABody()) { |
3595 | Error Err = ImportFunctionDeclBody(D, ToFunction); |
3596 | |
3597 | if (Err) |
3598 | return std::move(Err); |
3599 | } |
3600 | |
3601 | // Import and set the original type in case we used another type. |
3602 | if (UsedDifferentProtoType) { |
3603 | if (ExpectedType TyOrErr = import(D->getType())) |
3604 | ToFunction->setType(*TyOrErr); |
3605 | else |
3606 | return TyOrErr.takeError(); |
3607 | } |
3608 | |
3609 | // FIXME: Other bits to merge? |
3610 | |
3611 | // If it is a template, import all related things. |
3612 | if (Error Err = ImportTemplateInformation(D, ToFunction)) |
3613 | return std::move(Err); |
3614 | |
3615 | addDeclToContexts(D, ToFunction); |
3616 | |
3617 | if (auto *FromCXXMethod = dyn_cast<CXXMethodDecl>(D)) |
3618 | if (Error Err = ImportOverriddenMethods(cast<CXXMethodDecl>(ToFunction), |
3619 | FromCXXMethod)) |
3620 | return std::move(Err); |
3621 | |
3622 | // Import the rest of the chain. I.e. import all subsequent declarations. |
3623 | for (++RedeclIt; RedeclIt != Redecls.end(); ++RedeclIt) { |
3624 | ExpectedDecl ToRedeclOrErr = import(*RedeclIt); |
3625 | if (!ToRedeclOrErr) |
3626 | return ToRedeclOrErr.takeError(); |
3627 | } |
3628 | |
3629 | return ToFunction; |
3630 | } |
3631 | |
3632 | ExpectedDecl ASTNodeImporter::VisitCXXMethodDecl(CXXMethodDecl *D) { |
3633 | return VisitFunctionDecl(D); |
3634 | } |
3635 | |
3636 | ExpectedDecl ASTNodeImporter::VisitCXXConstructorDecl(CXXConstructorDecl *D) { |
3637 | return VisitCXXMethodDecl(D); |
3638 | } |
3639 | |
3640 | ExpectedDecl ASTNodeImporter::VisitCXXDestructorDecl(CXXDestructorDecl *D) { |
3641 | return VisitCXXMethodDecl(D); |
3642 | } |
3643 | |
3644 | ExpectedDecl ASTNodeImporter::VisitCXXConversionDecl(CXXConversionDecl *D) { |
3645 | return VisitCXXMethodDecl(D); |
3646 | } |
3647 | |
3648 | ExpectedDecl |
3649 | ASTNodeImporter::VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D) { |
3650 | return VisitFunctionDecl(D); |
3651 | } |
3652 | |
3653 | ExpectedDecl ASTNodeImporter::VisitFieldDecl(FieldDecl *D) { |
3654 | // Import the major distinguishing characteristics of a variable. |
3655 | DeclContext *DC, *LexicalDC; |
3656 | DeclarationName Name; |
3657 | SourceLocation Loc; |
3658 | NamedDecl *ToD; |
3659 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
3660 | return std::move(Err); |
3661 | if (ToD) |
3662 | return ToD; |
3663 | |
3664 | // Determine whether we've already imported this field. |
3665 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
3666 | for (auto *FoundDecl : FoundDecls) { |
3667 | if (FieldDecl *FoundField = dyn_cast<FieldDecl>(FoundDecl)) { |
3668 | // For anonymous fields, match up by index. |
3669 | if (!Name && |
3670 | ASTImporter::getFieldIndex(D) != |
3671 | ASTImporter::getFieldIndex(FoundField)) |
3672 | continue; |
3673 | |
3674 | if (Importer.IsStructurallyEquivalent(D->getType(), |
3675 | FoundField->getType())) { |
3676 | Importer.MapImported(D, FoundField); |
3677 | // In case of a FieldDecl of a ClassTemplateSpecializationDecl, the |
3678 | // initializer of a FieldDecl might not had been instantiated in the |
3679 | // "To" context. However, the "From" context might instantiated that, |
3680 | // thus we have to merge that. |
3681 | if (Expr *FromInitializer = D->getInClassInitializer()) { |
3682 | // We don't have yet the initializer set. |
3683 | if (FoundField->hasInClassInitializer() && |
3684 | !FoundField->getInClassInitializer()) { |
3685 | if (ExpectedExpr ToInitializerOrErr = import(FromInitializer)) |
3686 | FoundField->setInClassInitializer(*ToInitializerOrErr); |
3687 | else { |
3688 | // We can't return error here, |
3689 | // since we already mapped D as imported. |
3690 | // FIXME: warning message? |
3691 | consumeError(ToInitializerOrErr.takeError()); |
3692 | return FoundField; |
3693 | } |
3694 | } |
3695 | } |
3696 | return FoundField; |
3697 | } |
3698 | |
3699 | // FIXME: Why is this case not handled with calling HandleNameConflict? |
3700 | Importer.ToDiag(Loc, diag::warn_odr_field_type_inconsistent) |
3701 | << Name << D->getType() << FoundField->getType(); |
3702 | Importer.ToDiag(FoundField->getLocation(), diag::note_odr_value_here) |
3703 | << FoundField->getType(); |
3704 | |
3705 | return make_error<ImportError>(ImportError::NameConflict); |
3706 | } |
3707 | } |
3708 | |
3709 | Error Err = Error::success(); |
3710 | auto ToType = importChecked(Err, D->getType()); |
3711 | auto ToTInfo = importChecked(Err, D->getTypeSourceInfo()); |
3712 | auto ToBitWidth = importChecked(Err, D->getBitWidth()); |
3713 | auto ToInnerLocStart = importChecked(Err, D->getInnerLocStart()); |
3714 | auto ToInitializer = importChecked(Err, D->getInClassInitializer()); |
3715 | if (Err) |
3716 | return std::move(Err); |
3717 | const Type *ToCapturedVLAType = nullptr; |
3718 | if (Error Err = Importer.importInto( |
3719 | ToCapturedVLAType, cast_or_null<Type>(D->getCapturedVLAType()))) |
3720 | return std::move(Err); |
3721 | |
3722 | FieldDecl *ToField; |
3723 | if (GetImportedOrCreateDecl(ToField, D, Importer.getToContext(), DC, |
3724 | ToInnerLocStart, Loc, Name.getAsIdentifierInfo(), |
3725 | ToType, ToTInfo, ToBitWidth, D->isMutable(), |
3726 | D->getInClassInitStyle())) |
3727 | return ToField; |
3728 | |
3729 | ToField->setAccess(D->getAccess()); |
3730 | ToField->setLexicalDeclContext(LexicalDC); |
3731 | if (ToInitializer) |
3732 | ToField->setInClassInitializer(ToInitializer); |
3733 | ToField->setImplicit(D->isImplicit()); |
3734 | if (ToCapturedVLAType) |
3735 | ToField->setCapturedVLAType(cast<VariableArrayType>(ToCapturedVLAType)); |
3736 | LexicalDC->addDeclInternal(ToField); |
3737 | return ToField; |
3738 | } |
3739 | |
3740 | ExpectedDecl ASTNodeImporter::VisitIndirectFieldDecl(IndirectFieldDecl *D) { |
3741 | // Import the major distinguishing characteristics of a variable. |
3742 | DeclContext *DC, *LexicalDC; |
3743 | DeclarationName Name; |
3744 | SourceLocation Loc; |
3745 | NamedDecl *ToD; |
3746 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
3747 | return std::move(Err); |
3748 | if (ToD) |
3749 | return ToD; |
3750 | |
3751 | // Determine whether we've already imported this field. |
3752 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
3753 | for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) { |
3754 | if (auto *FoundField = dyn_cast<IndirectFieldDecl>(FoundDecls[I])) { |
3755 | // For anonymous indirect fields, match up by index. |
3756 | if (!Name && |
3757 | ASTImporter::getFieldIndex(D) != |
3758 | ASTImporter::getFieldIndex(FoundField)) |
3759 | continue; |
3760 | |
3761 | if (Importer.IsStructurallyEquivalent(D->getType(), |
3762 | FoundField->getType(), |
3763 | !Name.isEmpty())) { |
3764 | Importer.MapImported(D, FoundField); |
3765 | return FoundField; |
3766 | } |
3767 | |
3768 | // If there are more anonymous fields to check, continue. |
3769 | if (!Name && I < N-1) |
3770 | continue; |
3771 | |
3772 | // FIXME: Why is this case not handled with calling HandleNameConflict? |
3773 | Importer.ToDiag(Loc, diag::warn_odr_field_type_inconsistent) |
3774 | << Name << D->getType() << FoundField->getType(); |
3775 | Importer.ToDiag(FoundField->getLocation(), diag::note_odr_value_here) |
3776 | << FoundField->getType(); |
3777 | |
3778 | return make_error<ImportError>(ImportError::NameConflict); |
3779 | } |
3780 | } |
3781 | |
3782 | // Import the type. |
3783 | auto TypeOrErr = import(D->getType()); |
3784 | if (!TypeOrErr) |
3785 | return TypeOrErr.takeError(); |
3786 | |
3787 | auto **NamedChain = |
3788 | new (Importer.getToContext()) NamedDecl*[D->getChainingSize()]; |
3789 | |
3790 | unsigned i = 0; |
3791 | for (auto *PI : D->chain()) |
3792 | if (Expected<NamedDecl *> ToD = import(PI)) |
3793 | NamedChain[i++] = *ToD; |
3794 | else |
3795 | return ToD.takeError(); |
3796 | |
3797 | llvm::MutableArrayRef<NamedDecl *> CH = {NamedChain, D->getChainingSize()}; |
3798 | IndirectFieldDecl *ToIndirectField; |
3799 | if (GetImportedOrCreateDecl(ToIndirectField, D, Importer.getToContext(), DC, |
3800 | Loc, Name.getAsIdentifierInfo(), *TypeOrErr, CH)) |
3801 | // FIXME here we leak `NamedChain` which is allocated before |
3802 | return ToIndirectField; |
3803 | |
3804 | ToIndirectField->setAccess(D->getAccess()); |
3805 | ToIndirectField->setLexicalDeclContext(LexicalDC); |
3806 | LexicalDC->addDeclInternal(ToIndirectField); |
3807 | return ToIndirectField; |
3808 | } |
3809 | |
3810 | /// Used as return type of getFriendCountAndPosition. |
3811 | struct FriendCountAndPosition { |
3812 | /// Number of similar looking friends. |
3813 | unsigned int TotalCount; |
3814 | /// Index of the specific FriendDecl. |
3815 | unsigned int IndexOfDecl; |
3816 | }; |
3817 | |
3818 | template <class T> |
3819 | static FriendCountAndPosition getFriendCountAndPosition( |
3820 | const FriendDecl *FD, |
3821 | llvm::function_ref<T(const FriendDecl *)> GetCanTypeOrDecl) { |
3822 | unsigned int FriendCount = 0; |
3823 | llvm::Optional<unsigned int> FriendPosition; |
3824 | const auto *RD = cast<CXXRecordDecl>(FD->getLexicalDeclContext()); |
3825 | |
3826 | T TypeOrDecl = GetCanTypeOrDecl(FD); |
3827 | |
3828 | for (const FriendDecl *FoundFriend : RD->friends()) { |
3829 | if (FoundFriend == FD) { |
3830 | FriendPosition = FriendCount; |
3831 | ++FriendCount; |
3832 | } else if (!FoundFriend->getFriendDecl() == !FD->getFriendDecl() && |
3833 | GetCanTypeOrDecl(FoundFriend) == TypeOrDecl) { |
3834 | ++FriendCount; |
3835 | } |
3836 | } |
3837 | |
3838 | assert(FriendPosition && "Friend decl not found in own parent.")((void)0); |
3839 | |
3840 | return {FriendCount, *FriendPosition}; |
3841 | } |
3842 | |
3843 | static FriendCountAndPosition getFriendCountAndPosition(const FriendDecl *FD) { |
3844 | if (FD->getFriendType()) |
3845 | return getFriendCountAndPosition<QualType>(FD, [](const FriendDecl *F) { |
3846 | if (TypeSourceInfo *TSI = F->getFriendType()) |
3847 | return TSI->getType().getCanonicalType(); |
3848 | llvm_unreachable("Wrong friend object type.")__builtin_unreachable(); |
3849 | }); |
3850 | else |
3851 | return getFriendCountAndPosition<Decl *>(FD, [](const FriendDecl *F) { |
3852 | if (Decl *D = F->getFriendDecl()) |
3853 | return D->getCanonicalDecl(); |
3854 | llvm_unreachable("Wrong friend object type.")__builtin_unreachable(); |
3855 | }); |
3856 | } |
3857 | |
3858 | ExpectedDecl ASTNodeImporter::VisitFriendDecl(FriendDecl *D) { |
3859 | // Import the major distinguishing characteristics of a declaration. |
3860 | DeclContext *DC, *LexicalDC; |
3861 | if (Error Err = ImportDeclContext(D, DC, LexicalDC)) |
3862 | return std::move(Err); |
3863 | |
3864 | // Determine whether we've already imported this decl. |
3865 | // FriendDecl is not a NamedDecl so we cannot use lookup. |
3866 | // We try to maintain order and count of redundant friend declarations. |
3867 | const auto *RD = cast<CXXRecordDecl>(DC); |
3868 | FriendDecl *ImportedFriend = RD->getFirstFriend(); |
3869 | SmallVector<FriendDecl *, 2> ImportedEquivalentFriends; |
3870 | |
3871 | while (ImportedFriend) { |
3872 | bool Match = false; |
3873 | if (D->getFriendDecl() && ImportedFriend->getFriendDecl()) { |
3874 | Match = |
3875 | IsStructuralMatch(D->getFriendDecl(), ImportedFriend->getFriendDecl(), |
3876 | /*Complain=*/false); |
3877 | } else if (D->getFriendType() && ImportedFriend->getFriendType()) { |
3878 | Match = Importer.IsStructurallyEquivalent( |
3879 | D->getFriendType()->getType(), |
3880 | ImportedFriend->getFriendType()->getType(), /*Complain=*/false); |
3881 | } |
3882 | if (Match) |
3883 | ImportedEquivalentFriends.push_back(ImportedFriend); |
3884 | |
3885 | ImportedFriend = ImportedFriend->getNextFriend(); |
3886 | } |
3887 | FriendCountAndPosition CountAndPosition = getFriendCountAndPosition(D); |
3888 | |
3889 | assert(ImportedEquivalentFriends.size() <= CountAndPosition.TotalCount &&((void)0) |
3890 | "Class with non-matching friends is imported, ODR check wrong?")((void)0); |
3891 | if (ImportedEquivalentFriends.size() == CountAndPosition.TotalCount) |
3892 | return Importer.MapImported( |
3893 | D, ImportedEquivalentFriends[CountAndPosition.IndexOfDecl]); |
3894 | |
3895 | // Not found. Create it. |
3896 | // The declarations will be put into order later by ImportDeclContext. |
3897 | FriendDecl::FriendUnion ToFU; |
3898 | if (NamedDecl *FriendD = D->getFriendDecl()) { |
3899 | NamedDecl *ToFriendD; |
3900 | if (Error Err = importInto(ToFriendD, FriendD)) |
3901 | return std::move(Err); |
3902 | |
3903 | if (FriendD->getFriendObjectKind() != Decl::FOK_None && |
3904 | !(FriendD->isInIdentifierNamespace(Decl::IDNS_NonMemberOperator))) |
3905 | ToFriendD->setObjectOfFriendDecl(false); |
3906 | |
3907 | ToFU = ToFriendD; |
3908 | } else { // The friend is a type, not a decl. |
3909 | if (auto TSIOrErr = import(D->getFriendType())) |
3910 | ToFU = *TSIOrErr; |
3911 | else |
3912 | return TSIOrErr.takeError(); |
3913 | } |
3914 | |
3915 | SmallVector<TemplateParameterList *, 1> ToTPLists(D->NumTPLists); |
3916 | auto **FromTPLists = D->getTrailingObjects<TemplateParameterList *>(); |
3917 | for (unsigned I = 0; I < D->NumTPLists; I++) { |
3918 | if (auto ListOrErr = import(FromTPLists[I])) |
3919 | ToTPLists[I] = *ListOrErr; |
3920 | else |
3921 | return ListOrErr.takeError(); |
3922 | } |
3923 | |
3924 | auto LocationOrErr = import(D->getLocation()); |
3925 | if (!LocationOrErr) |
3926 | return LocationOrErr.takeError(); |
3927 | auto FriendLocOrErr = import(D->getFriendLoc()); |
3928 | if (!FriendLocOrErr) |
3929 | return FriendLocOrErr.takeError(); |
3930 | |
3931 | FriendDecl *FrD; |
3932 | if (GetImportedOrCreateDecl(FrD, D, Importer.getToContext(), DC, |
3933 | *LocationOrErr, ToFU, |
3934 | *FriendLocOrErr, ToTPLists)) |
3935 | return FrD; |
3936 | |
3937 | FrD->setAccess(D->getAccess()); |
3938 | FrD->setLexicalDeclContext(LexicalDC); |
3939 | LexicalDC->addDeclInternal(FrD); |
3940 | return FrD; |
3941 | } |
3942 | |
3943 | ExpectedDecl ASTNodeImporter::VisitObjCIvarDecl(ObjCIvarDecl *D) { |
3944 | // Import the major distinguishing characteristics of an ivar. |
3945 | DeclContext *DC, *LexicalDC; |
3946 | DeclarationName Name; |
3947 | SourceLocation Loc; |
3948 | NamedDecl *ToD; |
3949 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
3950 | return std::move(Err); |
3951 | if (ToD) |
3952 | return ToD; |
3953 | |
3954 | // Determine whether we've already imported this ivar |
3955 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
3956 | for (auto *FoundDecl : FoundDecls) { |
3957 | if (ObjCIvarDecl *FoundIvar = dyn_cast<ObjCIvarDecl>(FoundDecl)) { |
3958 | if (Importer.IsStructurallyEquivalent(D->getType(), |
3959 | FoundIvar->getType())) { |
3960 | Importer.MapImported(D, FoundIvar); |
3961 | return FoundIvar; |
3962 | } |
3963 | |
3964 | Importer.ToDiag(Loc, diag::warn_odr_ivar_type_inconsistent) |
3965 | << Name << D->getType() << FoundIvar->getType(); |
3966 | Importer.ToDiag(FoundIvar->getLocation(), diag::note_odr_value_here) |
3967 | << FoundIvar->getType(); |
3968 | |
3969 | return make_error<ImportError>(ImportError::NameConflict); |
3970 | } |
3971 | } |
3972 | |
3973 | Error Err = Error::success(); |
3974 | auto ToType = importChecked(Err, D->getType()); |
3975 | auto ToTypeSourceInfo = importChecked(Err, D->getTypeSourceInfo()); |
3976 | auto ToBitWidth = importChecked(Err, D->getBitWidth()); |
3977 | auto ToInnerLocStart = importChecked(Err, D->getInnerLocStart()); |
3978 | if (Err) |
3979 | return std::move(Err); |
3980 | |
3981 | ObjCIvarDecl *ToIvar; |
3982 | if (GetImportedOrCreateDecl( |
3983 | ToIvar, D, Importer.getToContext(), cast<ObjCContainerDecl>(DC), |
3984 | ToInnerLocStart, Loc, Name.getAsIdentifierInfo(), |
3985 | ToType, ToTypeSourceInfo, |
3986 | D->getAccessControl(),ToBitWidth, D->getSynthesize())) |
3987 | return ToIvar; |
3988 | |
3989 | ToIvar->setLexicalDeclContext(LexicalDC); |
3990 | LexicalDC->addDeclInternal(ToIvar); |
3991 | return ToIvar; |
3992 | } |
3993 | |
3994 | ExpectedDecl ASTNodeImporter::VisitVarDecl(VarDecl *D) { |
3995 | |
3996 | SmallVector<Decl*, 2> Redecls = getCanonicalForwardRedeclChain(D); |
3997 | auto RedeclIt = Redecls.begin(); |
3998 | // Import the first part of the decl chain. I.e. import all previous |
3999 | // declarations starting from the canonical decl. |
4000 | for (; RedeclIt != Redecls.end() && *RedeclIt != D; ++RedeclIt) { |
4001 | ExpectedDecl RedeclOrErr = import(*RedeclIt); |
4002 | if (!RedeclOrErr) |
4003 | return RedeclOrErr.takeError(); |
4004 | } |
4005 | assert(*RedeclIt == D)((void)0); |
4006 | |
4007 | // Import the major distinguishing characteristics of a variable. |
4008 | DeclContext *DC, *LexicalDC; |
4009 | DeclarationName Name; |
4010 | SourceLocation Loc; |
4011 | NamedDecl *ToD; |
4012 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4013 | return std::move(Err); |
4014 | if (ToD) |
4015 | return ToD; |
4016 | |
4017 | // Try to find a variable in our own ("to") context with the same name and |
4018 | // in the same context as the variable we're importing. |
4019 | VarDecl *FoundByLookup = nullptr; |
4020 | if (D->isFileVarDecl()) { |
4021 | SmallVector<NamedDecl *, 4> ConflictingDecls; |
4022 | unsigned IDNS = Decl::IDNS_Ordinary; |
4023 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
4024 | for (auto *FoundDecl : FoundDecls) { |
4025 | if (!FoundDecl->isInIdentifierNamespace(IDNS)) |
4026 | continue; |
4027 | |
4028 | if (auto *FoundVar = dyn_cast<VarDecl>(FoundDecl)) { |
4029 | if (!hasSameVisibilityContextAndLinkage(FoundVar, D)) |
4030 | continue; |
4031 | if (Importer.IsStructurallyEquivalent(D->getType(), |
4032 | FoundVar->getType())) { |
4033 | |
4034 | // The VarDecl in the "From" context has a definition, but in the |
4035 | // "To" context we already have a definition. |
4036 | VarDecl *FoundDef = FoundVar->getDefinition(); |
4037 | if (D->isThisDeclarationADefinition() && FoundDef) |
4038 | // FIXME Check for ODR error if the two definitions have |
4039 | // different initializers? |
4040 | return Importer.MapImported(D, FoundDef); |
4041 | |
4042 | // The VarDecl in the "From" context has an initializer, but in the |
4043 | // "To" context we already have an initializer. |
4044 | const VarDecl *FoundDInit = nullptr; |
4045 | if (D->getInit() && FoundVar->getAnyInitializer(FoundDInit)) |
4046 | // FIXME Diagnose ODR error if the two initializers are different? |
4047 | return Importer.MapImported(D, const_cast<VarDecl*>(FoundDInit)); |
4048 | |
4049 | FoundByLookup = FoundVar; |
4050 | break; |
4051 | } |
4052 | |
4053 | const ArrayType *FoundArray |
4054 | = Importer.getToContext().getAsArrayType(FoundVar->getType()); |
4055 | const ArrayType *TArray |
4056 | = Importer.getToContext().getAsArrayType(D->getType()); |
4057 | if (FoundArray && TArray) { |
4058 | if (isa<IncompleteArrayType>(FoundArray) && |
4059 | isa<ConstantArrayType>(TArray)) { |
4060 | // Import the type. |
4061 | if (auto TyOrErr = import(D->getType())) |
4062 | FoundVar->setType(*TyOrErr); |
4063 | else |
4064 | return TyOrErr.takeError(); |
4065 | |
4066 | FoundByLookup = FoundVar; |
4067 | break; |
4068 | } else if (isa<IncompleteArrayType>(TArray) && |
4069 | isa<ConstantArrayType>(FoundArray)) { |
4070 | FoundByLookup = FoundVar; |
4071 | break; |
4072 | } |
4073 | } |
4074 | |
4075 | Importer.ToDiag(Loc, diag::warn_odr_variable_type_inconsistent) |
4076 | << Name << D->getType() << FoundVar->getType(); |
4077 | Importer.ToDiag(FoundVar->getLocation(), diag::note_odr_value_here) |
4078 | << FoundVar->getType(); |
4079 | ConflictingDecls.push_back(FoundDecl); |
4080 | } |
4081 | } |
4082 | |
4083 | if (!ConflictingDecls.empty()) { |
4084 | ExpectedName NameOrErr = Importer.HandleNameConflict( |
4085 | Name, DC, IDNS, ConflictingDecls.data(), ConflictingDecls.size()); |
4086 | if (NameOrErr) |
4087 | Name = NameOrErr.get(); |
4088 | else |
4089 | return NameOrErr.takeError(); |
4090 | } |
4091 | } |
4092 | |
4093 | Error Err = Error::success(); |
4094 | auto ToType = importChecked(Err, D->getType()); |
4095 | auto ToTypeSourceInfo = importChecked(Err, D->getTypeSourceInfo()); |
4096 | auto ToInnerLocStart = importChecked(Err, D->getInnerLocStart()); |
4097 | auto ToQualifierLoc = importChecked(Err, D->getQualifierLoc()); |
4098 | if (Err) |
4099 | return std::move(Err); |
4100 | |
4101 | VarDecl *ToVar; |
4102 | if (auto *FromDecomp = dyn_cast<DecompositionDecl>(D)) { |
4103 | SmallVector<BindingDecl *> Bindings(FromDecomp->bindings().size()); |
4104 | if (Error Err = |
4105 | ImportArrayChecked(FromDecomp->bindings(), Bindings.begin())) |
4106 | return std::move(Err); |
4107 | DecompositionDecl *ToDecomp; |
4108 | if (GetImportedOrCreateDecl( |
4109 | ToDecomp, FromDecomp, Importer.getToContext(), DC, ToInnerLocStart, |
4110 | Loc, ToType, ToTypeSourceInfo, D->getStorageClass(), Bindings)) |
4111 | return ToDecomp; |
4112 | ToVar = ToDecomp; |
4113 | } else { |
4114 | // Create the imported variable. |
4115 | if (GetImportedOrCreateDecl(ToVar, D, Importer.getToContext(), DC, |
4116 | ToInnerLocStart, Loc, |
4117 | Name.getAsIdentifierInfo(), ToType, |
4118 | ToTypeSourceInfo, D->getStorageClass())) |
4119 | return ToVar; |
4120 | } |
4121 | |
4122 | ToVar->setTSCSpec(D->getTSCSpec()); |
4123 | ToVar->setQualifierInfo(ToQualifierLoc); |
4124 | ToVar->setAccess(D->getAccess()); |
4125 | ToVar->setLexicalDeclContext(LexicalDC); |
4126 | |
4127 | if (FoundByLookup) { |
4128 | auto *Recent = const_cast<VarDecl *>(FoundByLookup->getMostRecentDecl()); |
4129 | ToVar->setPreviousDecl(Recent); |
4130 | } |
4131 | |
4132 | // Import the described template, if any. |
4133 | if (D->getDescribedVarTemplate()) { |
4134 | auto ToVTOrErr = import(D->getDescribedVarTemplate()); |
4135 | if (!ToVTOrErr) |
4136 | return ToVTOrErr.takeError(); |
4137 | } |
4138 | |
4139 | if (Error Err = ImportInitializer(D, ToVar)) |
4140 | return std::move(Err); |
4141 | |
4142 | if (D->isConstexpr()) |
4143 | ToVar->setConstexpr(true); |
4144 | |
4145 | addDeclToContexts(D, ToVar); |
4146 | |
4147 | // Import the rest of the chain. I.e. import all subsequent declarations. |
4148 | for (++RedeclIt; RedeclIt != Redecls.end(); ++RedeclIt) { |
4149 | ExpectedDecl RedeclOrErr = import(*RedeclIt); |
4150 | if (!RedeclOrErr) |
4151 | return RedeclOrErr.takeError(); |
4152 | } |
4153 | |
4154 | return ToVar; |
4155 | } |
4156 | |
4157 | ExpectedDecl ASTNodeImporter::VisitImplicitParamDecl(ImplicitParamDecl *D) { |
4158 | // Parameters are created in the translation unit's context, then moved |
4159 | // into the function declaration's context afterward. |
4160 | DeclContext *DC = Importer.getToContext().getTranslationUnitDecl(); |
4161 | |
4162 | Error Err = Error::success(); |
4163 | auto ToDeclName = importChecked(Err, D->getDeclName()); |
4164 | auto ToLocation = importChecked(Err, D->getLocation()); |
4165 | auto ToType = importChecked(Err, D->getType()); |
4166 | if (Err) |
4167 | return std::move(Err); |
4168 | |
4169 | // Create the imported parameter. |
4170 | ImplicitParamDecl *ToParm = nullptr; |
4171 | if (GetImportedOrCreateDecl(ToParm, D, Importer.getToContext(), DC, |
4172 | ToLocation, ToDeclName.getAsIdentifierInfo(), |
4173 | ToType, D->getParameterKind())) |
4174 | return ToParm; |
4175 | return ToParm; |
4176 | } |
4177 | |
4178 | Error ASTNodeImporter::ImportDefaultArgOfParmVarDecl( |
4179 | const ParmVarDecl *FromParam, ParmVarDecl *ToParam) { |
4180 | ToParam->setHasInheritedDefaultArg(FromParam->hasInheritedDefaultArg()); |
4181 | ToParam->setKNRPromoted(FromParam->isKNRPromoted()); |
4182 | |
4183 | if (FromParam->hasUninstantiatedDefaultArg()) { |
4184 | if (auto ToDefArgOrErr = import(FromParam->getUninstantiatedDefaultArg())) |
4185 | ToParam->setUninstantiatedDefaultArg(*ToDefArgOrErr); |
4186 | else |
4187 | return ToDefArgOrErr.takeError(); |
4188 | } else if (FromParam->hasUnparsedDefaultArg()) { |
4189 | ToParam->setUnparsedDefaultArg(); |
4190 | } else if (FromParam->hasDefaultArg()) { |
4191 | if (auto ToDefArgOrErr = import(FromParam->getDefaultArg())) |
4192 | ToParam->setDefaultArg(*ToDefArgOrErr); |
4193 | else |
4194 | return ToDefArgOrErr.takeError(); |
4195 | } |
4196 | |
4197 | return Error::success(); |
4198 | } |
4199 | |
4200 | ExpectedDecl ASTNodeImporter::VisitParmVarDecl(ParmVarDecl *D) { |
4201 | // Parameters are created in the translation unit's context, then moved |
4202 | // into the function declaration's context afterward. |
4203 | DeclContext *DC = Importer.getToContext().getTranslationUnitDecl(); |
4204 | |
4205 | Error Err = Error::success(); |
4206 | auto ToDeclName = importChecked(Err, D->getDeclName()); |
4207 | auto ToLocation = importChecked(Err, D->getLocation()); |
4208 | auto ToInnerLocStart = importChecked(Err, D->getInnerLocStart()); |
4209 | auto ToType = importChecked(Err, D->getType()); |
4210 | auto ToTypeSourceInfo = importChecked(Err, D->getTypeSourceInfo()); |
4211 | if (Err) |
4212 | return std::move(Err); |
4213 | |
4214 | ParmVarDecl *ToParm; |
4215 | if (GetImportedOrCreateDecl(ToParm, D, Importer.getToContext(), DC, |
4216 | ToInnerLocStart, ToLocation, |
4217 | ToDeclName.getAsIdentifierInfo(), ToType, |
4218 | ToTypeSourceInfo, D->getStorageClass(), |
4219 | /*DefaultArg*/ nullptr)) |
4220 | return ToParm; |
4221 | |
4222 | // Set the default argument. It should be no problem if it was already done. |
4223 | // Do not import the default expression before GetImportedOrCreateDecl call |
4224 | // to avoid possible infinite import loop because circular dependency. |
4225 | if (Error Err = ImportDefaultArgOfParmVarDecl(D, ToParm)) |
4226 | return std::move(Err); |
4227 | |
4228 | if (D->isObjCMethodParameter()) { |
4229 | ToParm->setObjCMethodScopeInfo(D->getFunctionScopeIndex()); |
4230 | ToParm->setObjCDeclQualifier(D->getObjCDeclQualifier()); |
4231 | } else { |
4232 | ToParm->setScopeInfo(D->getFunctionScopeDepth(), |
4233 | D->getFunctionScopeIndex()); |
4234 | } |
4235 | |
4236 | return ToParm; |
4237 | } |
4238 | |
4239 | ExpectedDecl ASTNodeImporter::VisitObjCMethodDecl(ObjCMethodDecl *D) { |
4240 | // Import the major distinguishing characteristics of a method. |
4241 | DeclContext *DC, *LexicalDC; |
4242 | DeclarationName Name; |
4243 | SourceLocation Loc; |
4244 | NamedDecl *ToD; |
4245 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4246 | return std::move(Err); |
4247 | if (ToD) |
4248 | return ToD; |
4249 | |
4250 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
4251 | for (auto *FoundDecl : FoundDecls) { |
4252 | if (auto *FoundMethod = dyn_cast<ObjCMethodDecl>(FoundDecl)) { |
4253 | if (FoundMethod->isInstanceMethod() != D->isInstanceMethod()) |
4254 | continue; |
4255 | |
4256 | // Check return types. |
4257 | if (!Importer.IsStructurallyEquivalent(D->getReturnType(), |
4258 | FoundMethod->getReturnType())) { |
4259 | Importer.ToDiag(Loc, diag::warn_odr_objc_method_result_type_inconsistent) |
4260 | << D->isInstanceMethod() << Name << D->getReturnType() |
4261 | << FoundMethod->getReturnType(); |
4262 | Importer.ToDiag(FoundMethod->getLocation(), |
4263 | diag::note_odr_objc_method_here) |
4264 | << D->isInstanceMethod() << Name; |
4265 | |
4266 | return make_error<ImportError>(ImportError::NameConflict); |
4267 | } |
4268 | |
4269 | // Check the number of parameters. |
4270 | if (D->param_size() != FoundMethod->param_size()) { |
4271 | Importer.ToDiag(Loc, diag::warn_odr_objc_method_num_params_inconsistent) |
4272 | << D->isInstanceMethod() << Name |
4273 | << D->param_size() << FoundMethod->param_size(); |
4274 | Importer.ToDiag(FoundMethod->getLocation(), |
4275 | diag::note_odr_objc_method_here) |
4276 | << D->isInstanceMethod() << Name; |
4277 | |
4278 | return make_error<ImportError>(ImportError::NameConflict); |
4279 | } |
4280 | |
4281 | // Check parameter types. |
4282 | for (ObjCMethodDecl::param_iterator P = D->param_begin(), |
4283 | PEnd = D->param_end(), FoundP = FoundMethod->param_begin(); |
4284 | P != PEnd; ++P, ++FoundP) { |
4285 | if (!Importer.IsStructurallyEquivalent((*P)->getType(), |
4286 | (*FoundP)->getType())) { |
4287 | Importer.FromDiag((*P)->getLocation(), |
4288 | diag::warn_odr_objc_method_param_type_inconsistent) |
4289 | << D->isInstanceMethod() << Name |
4290 | << (*P)->getType() << (*FoundP)->getType(); |
4291 | Importer.ToDiag((*FoundP)->getLocation(), diag::note_odr_value_here) |
4292 | << (*FoundP)->getType(); |
4293 | |
4294 | return make_error<ImportError>(ImportError::NameConflict); |
4295 | } |
4296 | } |
4297 | |
4298 | // Check variadic/non-variadic. |
4299 | // Check the number of parameters. |
4300 | if (D->isVariadic() != FoundMethod->isVariadic()) { |
4301 | Importer.ToDiag(Loc, diag::warn_odr_objc_method_variadic_inconsistent) |
4302 | << D->isInstanceMethod() << Name; |
4303 | Importer.ToDiag(FoundMethod->getLocation(), |
4304 | diag::note_odr_objc_method_here) |
4305 | << D->isInstanceMethod() << Name; |
4306 | |
4307 | return make_error<ImportError>(ImportError::NameConflict); |
4308 | } |
4309 | |
4310 | // FIXME: Any other bits we need to merge? |
4311 | return Importer.MapImported(D, FoundMethod); |
4312 | } |
4313 | } |
4314 | |
4315 | Error Err = Error::success(); |
4316 | auto ToEndLoc = importChecked(Err, D->getEndLoc()); |
4317 | auto ToReturnType = importChecked(Err, D->getReturnType()); |
4318 | auto ToReturnTypeSourceInfo = |
4319 | importChecked(Err, D->getReturnTypeSourceInfo()); |
4320 | if (Err) |
4321 | return std::move(Err); |
4322 | |
4323 | ObjCMethodDecl *ToMethod; |
4324 | if (GetImportedOrCreateDecl( |
4325 | ToMethod, D, Importer.getToContext(), Loc, ToEndLoc, |
4326 | Name.getObjCSelector(), ToReturnType, ToReturnTypeSourceInfo, DC, |
4327 | D->isInstanceMethod(), D->isVariadic(), D->isPropertyAccessor(), |
4328 | D->isSynthesizedAccessorStub(), D->isImplicit(), D->isDefined(), |
4329 | D->getImplementationControl(), D->hasRelatedResultType())) |
4330 | return ToMethod; |
4331 | |
4332 | // FIXME: When we decide to merge method definitions, we'll need to |
4333 | // deal with implicit parameters. |
4334 | |
4335 | // Import the parameters |
4336 | SmallVector<ParmVarDecl *, 5> ToParams; |
4337 | for (auto *FromP : D->parameters()) { |
4338 | if (Expected<ParmVarDecl *> ToPOrErr = import(FromP)) |
4339 | ToParams.push_back(*ToPOrErr); |
4340 | else |
4341 | return ToPOrErr.takeError(); |
4342 | } |
4343 | |
4344 | // Set the parameters. |
4345 | for (auto *ToParam : ToParams) { |
4346 | ToParam->setOwningFunction(ToMethod); |
4347 | ToMethod->addDeclInternal(ToParam); |
4348 | } |
4349 | |
4350 | SmallVector<SourceLocation, 12> FromSelLocs; |
4351 | D->getSelectorLocs(FromSelLocs); |
4352 | SmallVector<SourceLocation, 12> ToSelLocs(FromSelLocs.size()); |
4353 | if (Error Err = ImportContainerChecked(FromSelLocs, ToSelLocs)) |
4354 | return std::move(Err); |
4355 | |
4356 | ToMethod->setMethodParams(Importer.getToContext(), ToParams, ToSelLocs); |
4357 | |
4358 | ToMethod->setLexicalDeclContext(LexicalDC); |
4359 | LexicalDC->addDeclInternal(ToMethod); |
4360 | |
4361 | // Implicit params are declared when Sema encounters the definition but this |
4362 | // never happens when the method is imported. Manually declare the implicit |
4363 | // params now that the MethodDecl knows its class interface. |
4364 | if (D->getSelfDecl()) |
4365 | ToMethod->createImplicitParams(Importer.getToContext(), |
4366 | ToMethod->getClassInterface()); |
4367 | |
4368 | return ToMethod; |
4369 | } |
4370 | |
4371 | ExpectedDecl ASTNodeImporter::VisitObjCTypeParamDecl(ObjCTypeParamDecl *D) { |
4372 | // Import the major distinguishing characteristics of a category. |
4373 | DeclContext *DC, *LexicalDC; |
4374 | DeclarationName Name; |
4375 | SourceLocation Loc; |
4376 | NamedDecl *ToD; |
4377 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4378 | return std::move(Err); |
4379 | if (ToD) |
4380 | return ToD; |
4381 | |
4382 | Error Err = Error::success(); |
4383 | auto ToVarianceLoc = importChecked(Err, D->getVarianceLoc()); |
4384 | auto ToLocation = importChecked(Err, D->getLocation()); |
4385 | auto ToColonLoc = importChecked(Err, D->getColonLoc()); |
4386 | auto ToTypeSourceInfo = importChecked(Err, D->getTypeSourceInfo()); |
4387 | if (Err) |
4388 | return std::move(Err); |
4389 | |
4390 | ObjCTypeParamDecl *Result; |
4391 | if (GetImportedOrCreateDecl( |
4392 | Result, D, Importer.getToContext(), DC, D->getVariance(), |
4393 | ToVarianceLoc, D->getIndex(), |
4394 | ToLocation, Name.getAsIdentifierInfo(), |
4395 | ToColonLoc, ToTypeSourceInfo)) |
4396 | return Result; |
4397 | |
4398 | Result->setLexicalDeclContext(LexicalDC); |
4399 | return Result; |
4400 | } |
4401 | |
4402 | ExpectedDecl ASTNodeImporter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) { |
4403 | // Import the major distinguishing characteristics of a category. |
4404 | DeclContext *DC, *LexicalDC; |
4405 | DeclarationName Name; |
4406 | SourceLocation Loc; |
4407 | NamedDecl *ToD; |
4408 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4409 | return std::move(Err); |
4410 | if (ToD) |
4411 | return ToD; |
4412 | |
4413 | ObjCInterfaceDecl *ToInterface; |
4414 | if (Error Err = importInto(ToInterface, D->getClassInterface())) |
4415 | return std::move(Err); |
4416 | |
4417 | // Determine if we've already encountered this category. |
4418 | ObjCCategoryDecl *MergeWithCategory |
4419 | = ToInterface->FindCategoryDeclaration(Name.getAsIdentifierInfo()); |
4420 | ObjCCategoryDecl *ToCategory = MergeWithCategory; |
4421 | if (!ToCategory) { |
4422 | |
4423 | Error Err = Error::success(); |
4424 | auto ToAtStartLoc = importChecked(Err, D->getAtStartLoc()); |
4425 | auto ToCategoryNameLoc = importChecked(Err, D->getCategoryNameLoc()); |
4426 | auto ToIvarLBraceLoc = importChecked(Err, D->getIvarLBraceLoc()); |
4427 | auto ToIvarRBraceLoc = importChecked(Err, D->getIvarRBraceLoc()); |
4428 | if (Err) |
4429 | return std::move(Err); |
4430 | |
4431 | if (GetImportedOrCreateDecl(ToCategory, D, Importer.getToContext(), DC, |
4432 | ToAtStartLoc, Loc, |
4433 | ToCategoryNameLoc, |
4434 | Name.getAsIdentifierInfo(), ToInterface, |
4435 | /*TypeParamList=*/nullptr, |
4436 | ToIvarLBraceLoc, |
4437 | ToIvarRBraceLoc)) |
4438 | return ToCategory; |
4439 | |
4440 | ToCategory->setLexicalDeclContext(LexicalDC); |
4441 | LexicalDC->addDeclInternal(ToCategory); |
4442 | // Import the type parameter list after MapImported, to avoid |
4443 | // loops when bringing in their DeclContext. |
4444 | if (auto PListOrErr = ImportObjCTypeParamList(D->getTypeParamList())) |
4445 | ToCategory->setTypeParamList(*PListOrErr); |
4446 | else |
4447 | return PListOrErr.takeError(); |
4448 | |
4449 | // Import protocols |
4450 | SmallVector<ObjCProtocolDecl *, 4> Protocols; |
4451 | SmallVector<SourceLocation, 4> ProtocolLocs; |
4452 | ObjCCategoryDecl::protocol_loc_iterator FromProtoLoc |
4453 | = D->protocol_loc_begin(); |
4454 | for (ObjCCategoryDecl::protocol_iterator FromProto = D->protocol_begin(), |
4455 | FromProtoEnd = D->protocol_end(); |
4456 | FromProto != FromProtoEnd; |
4457 | ++FromProto, ++FromProtoLoc) { |
4458 | if (Expected<ObjCProtocolDecl *> ToProtoOrErr = import(*FromProto)) |
4459 | Protocols.push_back(*ToProtoOrErr); |
4460 | else |
4461 | return ToProtoOrErr.takeError(); |
4462 | |
4463 | if (ExpectedSLoc ToProtoLocOrErr = import(*FromProtoLoc)) |
4464 | ProtocolLocs.push_back(*ToProtoLocOrErr); |
4465 | else |
4466 | return ToProtoLocOrErr.takeError(); |
4467 | } |
4468 | |
4469 | // FIXME: If we're merging, make sure that the protocol list is the same. |
4470 | ToCategory->setProtocolList(Protocols.data(), Protocols.size(), |
4471 | ProtocolLocs.data(), Importer.getToContext()); |
4472 | |
4473 | } else { |
4474 | Importer.MapImported(D, ToCategory); |
4475 | } |
4476 | |
4477 | // Import all of the members of this category. |
4478 | if (Error Err = ImportDeclContext(D)) |
4479 | return std::move(Err); |
4480 | |
4481 | // If we have an implementation, import it as well. |
4482 | if (D->getImplementation()) { |
4483 | if (Expected<ObjCCategoryImplDecl *> ToImplOrErr = |
4484 | import(D->getImplementation())) |
4485 | ToCategory->setImplementation(*ToImplOrErr); |
4486 | else |
4487 | return ToImplOrErr.takeError(); |
4488 | } |
4489 | |
4490 | return ToCategory; |
4491 | } |
4492 | |
4493 | Error ASTNodeImporter::ImportDefinition( |
4494 | ObjCProtocolDecl *From, ObjCProtocolDecl *To, ImportDefinitionKind Kind) { |
4495 | if (To->getDefinition()) { |
4496 | if (shouldForceImportDeclContext(Kind)) |
4497 | if (Error Err = ImportDeclContext(From)) |
4498 | return Err; |
4499 | return Error::success(); |
4500 | } |
4501 | |
4502 | // Start the protocol definition |
4503 | To->startDefinition(); |
4504 | |
4505 | // Import protocols |
4506 | SmallVector<ObjCProtocolDecl *, 4> Protocols; |
4507 | SmallVector<SourceLocation, 4> ProtocolLocs; |
4508 | ObjCProtocolDecl::protocol_loc_iterator FromProtoLoc = |
4509 | From->protocol_loc_begin(); |
4510 | for (ObjCProtocolDecl::protocol_iterator FromProto = From->protocol_begin(), |
4511 | FromProtoEnd = From->protocol_end(); |
4512 | FromProto != FromProtoEnd; |
4513 | ++FromProto, ++FromProtoLoc) { |
4514 | if (Expected<ObjCProtocolDecl *> ToProtoOrErr = import(*FromProto)) |
4515 | Protocols.push_back(*ToProtoOrErr); |
4516 | else |
4517 | return ToProtoOrErr.takeError(); |
4518 | |
4519 | if (ExpectedSLoc ToProtoLocOrErr = import(*FromProtoLoc)) |
4520 | ProtocolLocs.push_back(*ToProtoLocOrErr); |
4521 | else |
4522 | return ToProtoLocOrErr.takeError(); |
4523 | |
4524 | } |
4525 | |
4526 | // FIXME: If we're merging, make sure that the protocol list is the same. |
4527 | To->setProtocolList(Protocols.data(), Protocols.size(), |
4528 | ProtocolLocs.data(), Importer.getToContext()); |
4529 | |
4530 | if (shouldForceImportDeclContext(Kind)) { |
4531 | // Import all of the members of this protocol. |
4532 | if (Error Err = ImportDeclContext(From, /*ForceImport=*/true)) |
4533 | return Err; |
4534 | } |
4535 | return Error::success(); |
4536 | } |
4537 | |
4538 | ExpectedDecl ASTNodeImporter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) { |
4539 | // If this protocol has a definition in the translation unit we're coming |
4540 | // from, but this particular declaration is not that definition, import the |
4541 | // definition and map to that. |
4542 | ObjCProtocolDecl *Definition = D->getDefinition(); |
4543 | if (Definition && Definition != D) { |
4544 | if (ExpectedDecl ImportedDefOrErr = import(Definition)) |
4545 | return Importer.MapImported(D, *ImportedDefOrErr); |
4546 | else |
4547 | return ImportedDefOrErr.takeError(); |
4548 | } |
4549 | |
4550 | // Import the major distinguishing characteristics of a protocol. |
4551 | DeclContext *DC, *LexicalDC; |
4552 | DeclarationName Name; |
4553 | SourceLocation Loc; |
4554 | NamedDecl *ToD; |
4555 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4556 | return std::move(Err); |
4557 | if (ToD) |
4558 | return ToD; |
4559 | |
4560 | ObjCProtocolDecl *MergeWithProtocol = nullptr; |
4561 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
4562 | for (auto *FoundDecl : FoundDecls) { |
4563 | if (!FoundDecl->isInIdentifierNamespace(Decl::IDNS_ObjCProtocol)) |
4564 | continue; |
4565 | |
4566 | if ((MergeWithProtocol = dyn_cast<ObjCProtocolDecl>(FoundDecl))) |
4567 | break; |
4568 | } |
4569 | |
4570 | ObjCProtocolDecl *ToProto = MergeWithProtocol; |
4571 | if (!ToProto) { |
4572 | auto ToAtBeginLocOrErr = import(D->getAtStartLoc()); |
4573 | if (!ToAtBeginLocOrErr) |
4574 | return ToAtBeginLocOrErr.takeError(); |
4575 | |
4576 | if (GetImportedOrCreateDecl(ToProto, D, Importer.getToContext(), DC, |
4577 | Name.getAsIdentifierInfo(), Loc, |
4578 | *ToAtBeginLocOrErr, |
4579 | /*PrevDecl=*/nullptr)) |
4580 | return ToProto; |
4581 | ToProto->setLexicalDeclContext(LexicalDC); |
4582 | LexicalDC->addDeclInternal(ToProto); |
4583 | } |
4584 | |
4585 | Importer.MapImported(D, ToProto); |
4586 | |
4587 | if (D->isThisDeclarationADefinition()) |
4588 | if (Error Err = ImportDefinition(D, ToProto)) |
4589 | return std::move(Err); |
4590 | |
4591 | return ToProto; |
4592 | } |
4593 | |
4594 | ExpectedDecl ASTNodeImporter::VisitLinkageSpecDecl(LinkageSpecDecl *D) { |
4595 | DeclContext *DC, *LexicalDC; |
4596 | if (Error Err = ImportDeclContext(D, DC, LexicalDC)) |
4597 | return std::move(Err); |
4598 | |
4599 | ExpectedSLoc ExternLocOrErr = import(D->getExternLoc()); |
4600 | if (!ExternLocOrErr) |
4601 | return ExternLocOrErr.takeError(); |
4602 | |
4603 | ExpectedSLoc LangLocOrErr = import(D->getLocation()); |
4604 | if (!LangLocOrErr) |
4605 | return LangLocOrErr.takeError(); |
4606 | |
4607 | bool HasBraces = D->hasBraces(); |
4608 | |
4609 | LinkageSpecDecl *ToLinkageSpec; |
4610 | if (GetImportedOrCreateDecl(ToLinkageSpec, D, Importer.getToContext(), DC, |
4611 | *ExternLocOrErr, *LangLocOrErr, |
4612 | D->getLanguage(), HasBraces)) |
4613 | return ToLinkageSpec; |
4614 | |
4615 | if (HasBraces) { |
4616 | ExpectedSLoc RBraceLocOrErr = import(D->getRBraceLoc()); |
4617 | if (!RBraceLocOrErr) |
4618 | return RBraceLocOrErr.takeError(); |
4619 | ToLinkageSpec->setRBraceLoc(*RBraceLocOrErr); |
4620 | } |
4621 | |
4622 | ToLinkageSpec->setLexicalDeclContext(LexicalDC); |
4623 | LexicalDC->addDeclInternal(ToLinkageSpec); |
4624 | |
4625 | return ToLinkageSpec; |
4626 | } |
4627 | |
4628 | ExpectedDecl ASTNodeImporter::ImportUsingShadowDecls(BaseUsingDecl *D, |
4629 | BaseUsingDecl *ToSI) { |
4630 | for (UsingShadowDecl *FromShadow : D->shadows()) { |
4631 | if (Expected<UsingShadowDecl *> ToShadowOrErr = import(FromShadow)) |
4632 | ToSI->addShadowDecl(*ToShadowOrErr); |
4633 | else |
4634 | // FIXME: We return error here but the definition is already created |
4635 | // and available with lookups. How to fix this?.. |
4636 | return ToShadowOrErr.takeError(); |
4637 | } |
4638 | return ToSI; |
4639 | } |
4640 | |
4641 | ExpectedDecl ASTNodeImporter::VisitUsingDecl(UsingDecl *D) { |
4642 | DeclContext *DC, *LexicalDC; |
4643 | DeclarationName Name; |
4644 | SourceLocation Loc; |
4645 | NamedDecl *ToD = nullptr; |
4646 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4647 | return std::move(Err); |
4648 | if (ToD) |
4649 | return ToD; |
4650 | |
4651 | Error Err = Error::success(); |
4652 | auto ToLoc = importChecked(Err, D->getNameInfo().getLoc()); |
4653 | auto ToUsingLoc = importChecked(Err, D->getUsingLoc()); |
4654 | auto ToQualifierLoc = importChecked(Err, D->getQualifierLoc()); |
4655 | if (Err) |
4656 | return std::move(Err); |
4657 | |
4658 | DeclarationNameInfo NameInfo(Name, ToLoc); |
4659 | if (Error Err = ImportDeclarationNameLoc(D->getNameInfo(), NameInfo)) |
4660 | return std::move(Err); |
4661 | |
4662 | UsingDecl *ToUsing; |
4663 | if (GetImportedOrCreateDecl(ToUsing, D, Importer.getToContext(), DC, |
4664 | ToUsingLoc, ToQualifierLoc, NameInfo, |
4665 | D->hasTypename())) |
4666 | return ToUsing; |
4667 | |
4668 | ToUsing->setLexicalDeclContext(LexicalDC); |
4669 | LexicalDC->addDeclInternal(ToUsing); |
4670 | |
4671 | if (NamedDecl *FromPattern = |
4672 | Importer.getFromContext().getInstantiatedFromUsingDecl(D)) { |
4673 | if (Expected<NamedDecl *> ToPatternOrErr = import(FromPattern)) |
4674 | Importer.getToContext().setInstantiatedFromUsingDecl( |
4675 | ToUsing, *ToPatternOrErr); |
4676 | else |
4677 | return ToPatternOrErr.takeError(); |
4678 | } |
4679 | |
4680 | return ImportUsingShadowDecls(D, ToUsing); |
4681 | } |
4682 | |
4683 | ExpectedDecl ASTNodeImporter::VisitUsingEnumDecl(UsingEnumDecl *D) { |
4684 | DeclContext *DC, *LexicalDC; |
4685 | DeclarationName Name; |
4686 | SourceLocation Loc; |
4687 | NamedDecl *ToD = nullptr; |
4688 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4689 | return std::move(Err); |
4690 | if (ToD) |
4691 | return ToD; |
4692 | |
4693 | Error Err = Error::success(); |
4694 | auto ToUsingLoc = importChecked(Err, D->getUsingLoc()); |
4695 | auto ToEnumLoc = importChecked(Err, D->getEnumLoc()); |
4696 | auto ToEnumDecl = importChecked(Err, D->getEnumDecl()); |
4697 | if (Err) |
4698 | return std::move(Err); |
4699 | |
4700 | UsingEnumDecl *ToUsingEnum; |
4701 | if (GetImportedOrCreateDecl(ToUsingEnum, D, Importer.getToContext(), DC, |
4702 | ToUsingLoc, ToEnumLoc, Loc, ToEnumDecl)) |
4703 | return ToUsingEnum; |
4704 | |
4705 | ToUsingEnum->setLexicalDeclContext(LexicalDC); |
4706 | LexicalDC->addDeclInternal(ToUsingEnum); |
4707 | |
4708 | if (UsingEnumDecl *FromPattern = |
4709 | Importer.getFromContext().getInstantiatedFromUsingEnumDecl(D)) { |
4710 | if (Expected<UsingEnumDecl *> ToPatternOrErr = import(FromPattern)) |
4711 | Importer.getToContext().setInstantiatedFromUsingEnumDecl(ToUsingEnum, |
4712 | *ToPatternOrErr); |
4713 | else |
4714 | return ToPatternOrErr.takeError(); |
4715 | } |
4716 | |
4717 | return ImportUsingShadowDecls(D, ToUsingEnum); |
4718 | } |
4719 | |
4720 | ExpectedDecl ASTNodeImporter::VisitUsingShadowDecl(UsingShadowDecl *D) { |
4721 | DeclContext *DC, *LexicalDC; |
4722 | DeclarationName Name; |
4723 | SourceLocation Loc; |
4724 | NamedDecl *ToD = nullptr; |
4725 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4726 | return std::move(Err); |
4727 | if (ToD) |
4728 | return ToD; |
4729 | |
4730 | Expected<BaseUsingDecl *> ToIntroducerOrErr = import(D->getIntroducer()); |
4731 | if (!ToIntroducerOrErr) |
4732 | return ToIntroducerOrErr.takeError(); |
4733 | |
4734 | Expected<NamedDecl *> ToTargetOrErr = import(D->getTargetDecl()); |
4735 | if (!ToTargetOrErr) |
4736 | return ToTargetOrErr.takeError(); |
4737 | |
4738 | UsingShadowDecl *ToShadow; |
4739 | if (GetImportedOrCreateDecl(ToShadow, D, Importer.getToContext(), DC, Loc, |
4740 | Name, *ToIntroducerOrErr, *ToTargetOrErr)) |
4741 | return ToShadow; |
4742 | |
4743 | ToShadow->setLexicalDeclContext(LexicalDC); |
4744 | ToShadow->setAccess(D->getAccess()); |
4745 | |
4746 | if (UsingShadowDecl *FromPattern = |
4747 | Importer.getFromContext().getInstantiatedFromUsingShadowDecl(D)) { |
4748 | if (Expected<UsingShadowDecl *> ToPatternOrErr = import(FromPattern)) |
4749 | Importer.getToContext().setInstantiatedFromUsingShadowDecl( |
4750 | ToShadow, *ToPatternOrErr); |
4751 | else |
4752 | // FIXME: We return error here but the definition is already created |
4753 | // and available with lookups. How to fix this?.. |
4754 | return ToPatternOrErr.takeError(); |
4755 | } |
4756 | |
4757 | LexicalDC->addDeclInternal(ToShadow); |
4758 | |
4759 | return ToShadow; |
4760 | } |
4761 | |
4762 | ExpectedDecl ASTNodeImporter::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { |
4763 | DeclContext *DC, *LexicalDC; |
4764 | DeclarationName Name; |
4765 | SourceLocation Loc; |
4766 | NamedDecl *ToD = nullptr; |
4767 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4768 | return std::move(Err); |
4769 | if (ToD) |
4770 | return ToD; |
4771 | |
4772 | auto ToComAncestorOrErr = Importer.ImportContext(D->getCommonAncestor()); |
4773 | if (!ToComAncestorOrErr) |
4774 | return ToComAncestorOrErr.takeError(); |
4775 | |
4776 | Error Err = Error::success(); |
4777 | auto ToNominatedNamespace = importChecked(Err, D->getNominatedNamespace()); |
4778 | auto ToUsingLoc = importChecked(Err, D->getUsingLoc()); |
4779 | auto ToNamespaceKeyLocation = |
4780 | importChecked(Err, D->getNamespaceKeyLocation()); |
4781 | auto ToQualifierLoc = importChecked(Err, D->getQualifierLoc()); |
4782 | auto ToIdentLocation = importChecked(Err, D->getIdentLocation()); |
4783 | if (Err) |
4784 | return std::move(Err); |
4785 | |
4786 | UsingDirectiveDecl *ToUsingDir; |
4787 | if (GetImportedOrCreateDecl(ToUsingDir, D, Importer.getToContext(), DC, |
4788 | ToUsingLoc, |
4789 | ToNamespaceKeyLocation, |
4790 | ToQualifierLoc, |
4791 | ToIdentLocation, |
4792 | ToNominatedNamespace, *ToComAncestorOrErr)) |
4793 | return ToUsingDir; |
4794 | |
4795 | ToUsingDir->setLexicalDeclContext(LexicalDC); |
4796 | LexicalDC->addDeclInternal(ToUsingDir); |
4797 | |
4798 | return ToUsingDir; |
4799 | } |
4800 | |
4801 | ExpectedDecl ASTNodeImporter::VisitUnresolvedUsingValueDecl( |
4802 | UnresolvedUsingValueDecl *D) { |
4803 | DeclContext *DC, *LexicalDC; |
4804 | DeclarationName Name; |
4805 | SourceLocation Loc; |
4806 | NamedDecl *ToD = nullptr; |
4807 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4808 | return std::move(Err); |
4809 | if (ToD) |
4810 | return ToD; |
4811 | |
4812 | Error Err = Error::success(); |
4813 | auto ToLoc = importChecked(Err, D->getNameInfo().getLoc()); |
4814 | auto ToUsingLoc = importChecked(Err, D->getUsingLoc()); |
4815 | auto ToQualifierLoc = importChecked(Err, D->getQualifierLoc()); |
4816 | auto ToEllipsisLoc = importChecked(Err, D->getEllipsisLoc()); |
4817 | if (Err) |
4818 | return std::move(Err); |
4819 | |
4820 | DeclarationNameInfo NameInfo(Name, ToLoc); |
4821 | if (Error Err = ImportDeclarationNameLoc(D->getNameInfo(), NameInfo)) |
4822 | return std::move(Err); |
4823 | |
4824 | UnresolvedUsingValueDecl *ToUsingValue; |
4825 | if (GetImportedOrCreateDecl(ToUsingValue, D, Importer.getToContext(), DC, |
4826 | ToUsingLoc, ToQualifierLoc, NameInfo, |
4827 | ToEllipsisLoc)) |
4828 | return ToUsingValue; |
4829 | |
4830 | ToUsingValue->setAccess(D->getAccess()); |
4831 | ToUsingValue->setLexicalDeclContext(LexicalDC); |
4832 | LexicalDC->addDeclInternal(ToUsingValue); |
4833 | |
4834 | return ToUsingValue; |
4835 | } |
4836 | |
4837 | ExpectedDecl ASTNodeImporter::VisitUnresolvedUsingTypenameDecl( |
4838 | UnresolvedUsingTypenameDecl *D) { |
4839 | DeclContext *DC, *LexicalDC; |
4840 | DeclarationName Name; |
4841 | SourceLocation Loc; |
4842 | NamedDecl *ToD = nullptr; |
4843 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
4844 | return std::move(Err); |
4845 | if (ToD) |
4846 | return ToD; |
4847 | |
4848 | Error Err = Error::success(); |
4849 | auto ToUsingLoc = importChecked(Err, D->getUsingLoc()); |
4850 | auto ToTypenameLoc = importChecked(Err, D->getTypenameLoc()); |
4851 | auto ToQualifierLoc = importChecked(Err, D->getQualifierLoc()); |
4852 | auto ToEllipsisLoc = importChecked(Err, D->getEllipsisLoc()); |
4853 | if (Err) |
4854 | return std::move(Err); |
4855 | |
4856 | UnresolvedUsingTypenameDecl *ToUsing; |
4857 | if (GetImportedOrCreateDecl(ToUsing, D, Importer.getToContext(), DC, |
4858 | ToUsingLoc, ToTypenameLoc, |
4859 | ToQualifierLoc, Loc, Name, ToEllipsisLoc)) |
4860 | return ToUsing; |
4861 | |
4862 | ToUsing->setAccess(D->getAccess()); |
4863 | ToUsing->setLexicalDeclContext(LexicalDC); |
4864 | LexicalDC->addDeclInternal(ToUsing); |
4865 | |
4866 | return ToUsing; |
4867 | } |
4868 | |
4869 | ExpectedDecl ASTNodeImporter::VisitBuiltinTemplateDecl(BuiltinTemplateDecl *D) { |
4870 | Decl* ToD = nullptr; |
4871 | switch (D->getBuiltinTemplateKind()) { |
4872 | case BuiltinTemplateKind::BTK__make_integer_seq: |
4873 | ToD = Importer.getToContext().getMakeIntegerSeqDecl(); |
4874 | break; |
4875 | case BuiltinTemplateKind::BTK__type_pack_element: |
4876 | ToD = Importer.getToContext().getTypePackElementDecl(); |
4877 | break; |
4878 | } |
4879 | assert(ToD && "BuiltinTemplateDecl of unsupported kind!")((void)0); |
4880 | Importer.MapImported(D, ToD); |
4881 | return ToD; |
4882 | } |
4883 | |
4884 | Error ASTNodeImporter::ImportDefinition( |
4885 | ObjCInterfaceDecl *From, ObjCInterfaceDecl *To, ImportDefinitionKind Kind) { |
4886 | if (To->getDefinition()) { |
4887 | // Check consistency of superclass. |
4888 | ObjCInterfaceDecl *FromSuper = From->getSuperClass(); |
4889 | if (FromSuper) { |
4890 | if (auto FromSuperOrErr = import(FromSuper)) |
4891 | FromSuper = *FromSuperOrErr; |
4892 | else |
4893 | return FromSuperOrErr.takeError(); |
4894 | } |
4895 | |
4896 | ObjCInterfaceDecl *ToSuper = To->getSuperClass(); |
4897 | if ((bool)FromSuper != (bool)ToSuper || |
4898 | (FromSuper && !declaresSameEntity(FromSuper, ToSuper))) { |
4899 | Importer.ToDiag(To->getLocation(), |
4900 | diag::warn_odr_objc_superclass_inconsistent) |
4901 | << To->getDeclName(); |
4902 | if (ToSuper) |
4903 | Importer.ToDiag(To->getSuperClassLoc(), diag::note_odr_objc_superclass) |
4904 | << To->getSuperClass()->getDeclName(); |
4905 | else |
4906 | Importer.ToDiag(To->getLocation(), |
4907 | diag::note_odr_objc_missing_superclass); |
4908 | if (From->getSuperClass()) |
4909 | Importer.FromDiag(From->getSuperClassLoc(), |
4910 | diag::note_odr_objc_superclass) |
4911 | << From->getSuperClass()->getDeclName(); |
4912 | else |
4913 | Importer.FromDiag(From->getLocation(), |
4914 | diag::note_odr_objc_missing_superclass); |
4915 | } |
4916 | |
4917 | if (shouldForceImportDeclContext(Kind)) |
4918 | if (Error Err = ImportDeclContext(From)) |
4919 | return Err; |
4920 | return Error::success(); |
4921 | } |
4922 | |
4923 | // Start the definition. |
4924 | To->startDefinition(); |
4925 | |
4926 | // If this class has a superclass, import it. |
4927 | if (From->getSuperClass()) { |
4928 | if (auto SuperTInfoOrErr = import(From->getSuperClassTInfo())) |
4929 | To->setSuperClass(*SuperTInfoOrErr); |
4930 | else |
4931 | return SuperTInfoOrErr.takeError(); |
4932 | } |
4933 | |
4934 | // Import protocols |
4935 | SmallVector<ObjCProtocolDecl *, 4> Protocols; |
4936 | SmallVector<SourceLocation, 4> ProtocolLocs; |
4937 | ObjCInterfaceDecl::protocol_loc_iterator FromProtoLoc = |
4938 | From->protocol_loc_begin(); |
4939 | |
4940 | for (ObjCInterfaceDecl::protocol_iterator FromProto = From->protocol_begin(), |
4941 | FromProtoEnd = From->protocol_end(); |
4942 | FromProto != FromProtoEnd; |
4943 | ++FromProto, ++FromProtoLoc) { |
4944 | if (Expected<ObjCProtocolDecl *> ToProtoOrErr = import(*FromProto)) |
4945 | Protocols.push_back(*ToProtoOrErr); |
4946 | else |
4947 | return ToProtoOrErr.takeError(); |
4948 | |
4949 | if (ExpectedSLoc ToProtoLocOrErr = import(*FromProtoLoc)) |
4950 | ProtocolLocs.push_back(*ToProtoLocOrErr); |
4951 | else |
4952 | return ToProtoLocOrErr.takeError(); |
4953 | |
4954 | } |
4955 | |
4956 | // FIXME: If we're merging, make sure that the protocol list is the same. |
4957 | To->setProtocolList(Protocols.data(), Protocols.size(), |
4958 | ProtocolLocs.data(), Importer.getToContext()); |
4959 | |
4960 | // Import categories. When the categories themselves are imported, they'll |
4961 | // hook themselves into this interface. |
4962 | for (auto *Cat : From->known_categories()) { |
4963 | auto ToCatOrErr = import(Cat); |
4964 | if (!ToCatOrErr) |
4965 | return ToCatOrErr.takeError(); |
4966 | } |
4967 | |
4968 | // If we have an @implementation, import it as well. |
4969 | if (From->getImplementation()) { |
4970 | if (Expected<ObjCImplementationDecl *> ToImplOrErr = |
4971 | import(From->getImplementation())) |
4972 | To->setImplementation(*ToImplOrErr); |
4973 | else |
4974 | return ToImplOrErr.takeError(); |
4975 | } |
4976 | |
4977 | // Import all of the members of this class. |
4978 | if (Error Err = ImportDeclContext(From, /*ForceImport=*/true)) |
4979 | return Err; |
4980 | |
4981 | return Error::success(); |
4982 | } |
4983 | |
4984 | Expected<ObjCTypeParamList *> |
4985 | ASTNodeImporter::ImportObjCTypeParamList(ObjCTypeParamList *list) { |
4986 | if (!list) |
4987 | return nullptr; |
4988 | |
4989 | SmallVector<ObjCTypeParamDecl *, 4> toTypeParams; |
4990 | for (auto *fromTypeParam : *list) { |
4991 | if (auto toTypeParamOrErr = import(fromTypeParam)) |
4992 | toTypeParams.push_back(*toTypeParamOrErr); |
4993 | else |
4994 | return toTypeParamOrErr.takeError(); |
4995 | } |
4996 | |
4997 | auto LAngleLocOrErr = import(list->getLAngleLoc()); |
4998 | if (!LAngleLocOrErr) |
4999 | return LAngleLocOrErr.takeError(); |
5000 | |
5001 | auto RAngleLocOrErr = import(list->getRAngleLoc()); |
5002 | if (!RAngleLocOrErr) |
5003 | return RAngleLocOrErr.takeError(); |
5004 | |
5005 | return ObjCTypeParamList::create(Importer.getToContext(), |
5006 | *LAngleLocOrErr, |
5007 | toTypeParams, |
5008 | *RAngleLocOrErr); |
5009 | } |
5010 | |
5011 | ExpectedDecl ASTNodeImporter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) { |
5012 | // If this class has a definition in the translation unit we're coming from, |
5013 | // but this particular declaration is not that definition, import the |
5014 | // definition and map to that. |
5015 | ObjCInterfaceDecl *Definition = D->getDefinition(); |
5016 | if (Definition && Definition != D) { |
5017 | if (ExpectedDecl ImportedDefOrErr = import(Definition)) |
5018 | return Importer.MapImported(D, *ImportedDefOrErr); |
5019 | else |
5020 | return ImportedDefOrErr.takeError(); |
5021 | } |
5022 | |
5023 | // Import the major distinguishing characteristics of an @interface. |
5024 | DeclContext *DC, *LexicalDC; |
5025 | DeclarationName Name; |
5026 | SourceLocation Loc; |
5027 | NamedDecl *ToD; |
5028 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
5029 | return std::move(Err); |
5030 | if (ToD) |
5031 | return ToD; |
5032 | |
5033 | // Look for an existing interface with the same name. |
5034 | ObjCInterfaceDecl *MergeWithIface = nullptr; |
5035 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
5036 | for (auto *FoundDecl : FoundDecls) { |
5037 | if (!FoundDecl->isInIdentifierNamespace(Decl::IDNS_Ordinary)) |
5038 | continue; |
5039 | |
5040 | if ((MergeWithIface = dyn_cast<ObjCInterfaceDecl>(FoundDecl))) |
5041 | break; |
5042 | } |
5043 | |
5044 | // Create an interface declaration, if one does not already exist. |
5045 | ObjCInterfaceDecl *ToIface = MergeWithIface; |
5046 | if (!ToIface) { |
5047 | ExpectedSLoc AtBeginLocOrErr = import(D->getAtStartLoc()); |
5048 | if (!AtBeginLocOrErr) |
5049 | return AtBeginLocOrErr.takeError(); |
5050 | |
5051 | if (GetImportedOrCreateDecl( |
5052 | ToIface, D, Importer.getToContext(), DC, |
5053 | *AtBeginLocOrErr, Name.getAsIdentifierInfo(), |
5054 | /*TypeParamList=*/nullptr, |
5055 | /*PrevDecl=*/nullptr, Loc, D->isImplicitInterfaceDecl())) |
5056 | return ToIface; |
5057 | ToIface->setLexicalDeclContext(LexicalDC); |
5058 | LexicalDC->addDeclInternal(ToIface); |
5059 | } |
5060 | Importer.MapImported(D, ToIface); |
5061 | // Import the type parameter list after MapImported, to avoid |
5062 | // loops when bringing in their DeclContext. |
5063 | if (auto ToPListOrErr = |
5064 | ImportObjCTypeParamList(D->getTypeParamListAsWritten())) |
5065 | ToIface->setTypeParamList(*ToPListOrErr); |
5066 | else |
5067 | return ToPListOrErr.takeError(); |
5068 | |
5069 | if (D->isThisDeclarationADefinition()) |
5070 | if (Error Err = ImportDefinition(D, ToIface)) |
5071 | return std::move(Err); |
5072 | |
5073 | return ToIface; |
5074 | } |
5075 | |
5076 | ExpectedDecl |
5077 | ASTNodeImporter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { |
5078 | ObjCCategoryDecl *Category; |
5079 | if (Error Err = importInto(Category, D->getCategoryDecl())) |
5080 | return std::move(Err); |
5081 | |
5082 | ObjCCategoryImplDecl *ToImpl = Category->getImplementation(); |
5083 | if (!ToImpl) { |
5084 | DeclContext *DC, *LexicalDC; |
5085 | if (Error Err = ImportDeclContext(D, DC, LexicalDC)) |
5086 | return std::move(Err); |
5087 | |
5088 | Error Err = Error::success(); |
5089 | auto ToLocation = importChecked(Err, D->getLocation()); |
5090 | auto ToAtStartLoc = importChecked(Err, D->getAtStartLoc()); |
5091 | auto ToCategoryNameLoc = importChecked(Err, D->getCategoryNameLoc()); |
5092 | if (Err) |
5093 | return std::move(Err); |
5094 | |
5095 | if (GetImportedOrCreateDecl( |
5096 | ToImpl, D, Importer.getToContext(), DC, |
5097 | Importer.Import(D->getIdentifier()), Category->getClassInterface(), |
5098 | ToLocation, ToAtStartLoc, ToCategoryNameLoc)) |
5099 | return ToImpl; |
5100 | |
5101 | ToImpl->setLexicalDeclContext(LexicalDC); |
5102 | LexicalDC->addDeclInternal(ToImpl); |
5103 | Category->setImplementation(ToImpl); |
5104 | } |
5105 | |
5106 | Importer.MapImported(D, ToImpl); |
5107 | if (Error Err = ImportDeclContext(D)) |
5108 | return std::move(Err); |
5109 | |
5110 | return ToImpl; |
5111 | } |
5112 | |
5113 | ExpectedDecl |
5114 | ASTNodeImporter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { |
5115 | // Find the corresponding interface. |
5116 | ObjCInterfaceDecl *Iface; |
5117 | if (Error Err = importInto(Iface, D->getClassInterface())) |
5118 | return std::move(Err); |
5119 | |
5120 | // Import the superclass, if any. |
5121 | ObjCInterfaceDecl *Super; |
5122 | if (Error Err = importInto(Super, D->getSuperClass())) |
5123 | return std::move(Err); |
5124 | |
5125 | ObjCImplementationDecl *Impl = Iface->getImplementation(); |
5126 | if (!Impl) { |
5127 | // We haven't imported an implementation yet. Create a new @implementation |
5128 | // now. |
5129 | DeclContext *DC, *LexicalDC; |
5130 | if (Error Err = ImportDeclContext(D, DC, LexicalDC)) |
5131 | return std::move(Err); |
5132 | |
5133 | Error Err = Error::success(); |
5134 | auto ToLocation = importChecked(Err, D->getLocation()); |
5135 | auto ToAtStartLoc = importChecked(Err, D->getAtStartLoc()); |
5136 | auto ToSuperClassLoc = importChecked(Err, D->getSuperClassLoc()); |
5137 | auto ToIvarLBraceLoc = importChecked(Err, D->getIvarLBraceLoc()); |
5138 | auto ToIvarRBraceLoc = importChecked(Err, D->getIvarRBraceLoc()); |
5139 | if (Err) |
5140 | return std::move(Err); |
5141 | |
5142 | if (GetImportedOrCreateDecl(Impl, D, Importer.getToContext(), |
5143 | DC, Iface, Super, |
5144 | ToLocation, |
5145 | ToAtStartLoc, |
5146 | ToSuperClassLoc, |
5147 | ToIvarLBraceLoc, |
5148 | ToIvarRBraceLoc)) |
5149 | return Impl; |
5150 | |
5151 | Impl->setLexicalDeclContext(LexicalDC); |
5152 | |
5153 | // Associate the implementation with the class it implements. |
5154 | Iface->setImplementation(Impl); |
5155 | Importer.MapImported(D, Iface->getImplementation()); |
5156 | } else { |
5157 | Importer.MapImported(D, Iface->getImplementation()); |
5158 | |
5159 | // Verify that the existing @implementation has the same superclass. |
5160 | if ((Super && !Impl->getSuperClass()) || |
5161 | (!Super && Impl->getSuperClass()) || |
5162 | (Super && Impl->getSuperClass() && |
5163 | !declaresSameEntity(Super->getCanonicalDecl(), |
5164 | Impl->getSuperClass()))) { |
5165 | Importer.ToDiag(Impl->getLocation(), |
5166 | diag::warn_odr_objc_superclass_inconsistent) |
5167 | << Iface->getDeclName(); |
5168 | // FIXME: It would be nice to have the location of the superclass |
5169 | // below. |
5170 | if (Impl->getSuperClass()) |
5171 | Importer.ToDiag(Impl->getLocation(), |
5172 | diag::note_odr_objc_superclass) |
5173 | << Impl->getSuperClass()->getDeclName(); |
5174 | else |
5175 | Importer.ToDiag(Impl->getLocation(), |
5176 | diag::note_odr_objc_missing_superclass); |
5177 | if (D->getSuperClass()) |
5178 | Importer.FromDiag(D->getLocation(), |
5179 | diag::note_odr_objc_superclass) |
5180 | << D->getSuperClass()->getDeclName(); |
5181 | else |
5182 | Importer.FromDiag(D->getLocation(), |
5183 | diag::note_odr_objc_missing_superclass); |
5184 | |
5185 | return make_error<ImportError>(ImportError::NameConflict); |
5186 | } |
5187 | } |
5188 | |
5189 | // Import all of the members of this @implementation. |
5190 | if (Error Err = ImportDeclContext(D)) |
5191 | return std::move(Err); |
5192 | |
5193 | return Impl; |
5194 | } |
5195 | |
5196 | ExpectedDecl ASTNodeImporter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) { |
5197 | // Import the major distinguishing characteristics of an @property. |
5198 | DeclContext *DC, *LexicalDC; |
5199 | DeclarationName Name; |
5200 | SourceLocation Loc; |
5201 | NamedDecl *ToD; |
5202 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
5203 | return std::move(Err); |
5204 | if (ToD) |
5205 | return ToD; |
5206 | |
5207 | // Check whether we have already imported this property. |
5208 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
5209 | for (auto *FoundDecl : FoundDecls) { |
5210 | if (auto *FoundProp = dyn_cast<ObjCPropertyDecl>(FoundDecl)) { |
5211 | // Instance and class properties can share the same name but are different |
5212 | // declarations. |
5213 | if (FoundProp->isInstanceProperty() != D->isInstanceProperty()) |
5214 | continue; |
5215 | |
5216 | // Check property types. |
5217 | if (!Importer.IsStructurallyEquivalent(D->getType(), |
5218 | FoundProp->getType())) { |
5219 | Importer.ToDiag(Loc, diag::warn_odr_objc_property_type_inconsistent) |
5220 | << Name << D->getType() << FoundProp->getType(); |
5221 | Importer.ToDiag(FoundProp->getLocation(), diag::note_odr_value_here) |
5222 | << FoundProp->getType(); |
5223 | |
5224 | return make_error<ImportError>(ImportError::NameConflict); |
5225 | } |
5226 | |
5227 | // FIXME: Check property attributes, getters, setters, etc.? |
5228 | |
5229 | // Consider these properties to be equivalent. |
5230 | Importer.MapImported(D, FoundProp); |
5231 | return FoundProp; |
5232 | } |
5233 | } |
5234 | |
5235 | Error Err = Error::success(); |
5236 | auto ToType = importChecked(Err, D->getType()); |
5237 | auto ToTypeSourceInfo = importChecked(Err, D->getTypeSourceInfo()); |
5238 | auto ToAtLoc = importChecked(Err, D->getAtLoc()); |
5239 | auto ToLParenLoc = importChecked(Err, D->getLParenLoc()); |
5240 | if (Err) |
5241 | return std::move(Err); |
5242 | |
5243 | // Create the new property. |
5244 | ObjCPropertyDecl *ToProperty; |
5245 | if (GetImportedOrCreateDecl( |
5246 | ToProperty, D, Importer.getToContext(), DC, Loc, |
5247 | Name.getAsIdentifierInfo(), ToAtLoc, |
5248 | ToLParenLoc, ToType, |
5249 | ToTypeSourceInfo, D->getPropertyImplementation())) |
5250 | return ToProperty; |
5251 | |
5252 | auto ToGetterName = importChecked(Err, D->getGetterName()); |
5253 | auto ToSetterName = importChecked(Err, D->getSetterName()); |
5254 | auto ToGetterNameLoc = importChecked(Err, D->getGetterNameLoc()); |
5255 | auto ToSetterNameLoc = importChecked(Err, D->getSetterNameLoc()); |
5256 | auto ToGetterMethodDecl = importChecked(Err, D->getGetterMethodDecl()); |
5257 | auto ToSetterMethodDecl = importChecked(Err, D->getSetterMethodDecl()); |
5258 | auto ToPropertyIvarDecl = importChecked(Err, D->getPropertyIvarDecl()); |
5259 | if (Err) |
5260 | return std::move(Err); |
5261 | |
5262 | ToProperty->setLexicalDeclContext(LexicalDC); |
5263 | LexicalDC->addDeclInternal(ToProperty); |
5264 | |
5265 | ToProperty->setPropertyAttributes(D->getPropertyAttributes()); |
5266 | ToProperty->setPropertyAttributesAsWritten( |
5267 | D->getPropertyAttributesAsWritten()); |
5268 | ToProperty->setGetterName(ToGetterName, ToGetterNameLoc); |
5269 | ToProperty->setSetterName(ToSetterName, ToSetterNameLoc); |
5270 | ToProperty->setGetterMethodDecl(ToGetterMethodDecl); |
5271 | ToProperty->setSetterMethodDecl(ToSetterMethodDecl); |
5272 | ToProperty->setPropertyIvarDecl(ToPropertyIvarDecl); |
5273 | return ToProperty; |
5274 | } |
5275 | |
5276 | ExpectedDecl |
5277 | ASTNodeImporter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) { |
5278 | ObjCPropertyDecl *Property; |
5279 | if (Error Err = importInto(Property, D->getPropertyDecl())) |
5280 | return std::move(Err); |
5281 | |
5282 | DeclContext *DC, *LexicalDC; |
5283 | if (Error Err = ImportDeclContext(D, DC, LexicalDC)) |
5284 | return std::move(Err); |
5285 | |
5286 | auto *InImpl = cast<ObjCImplDecl>(LexicalDC); |
5287 | |
5288 | // Import the ivar (for an @synthesize). |
5289 | ObjCIvarDecl *Ivar = nullptr; |
5290 | if (Error Err = importInto(Ivar, D->getPropertyIvarDecl())) |
5291 | return std::move(Err); |
5292 | |
5293 | ObjCPropertyImplDecl *ToImpl |
5294 | = InImpl->FindPropertyImplDecl(Property->getIdentifier(), |
5295 | Property->getQueryKind()); |
5296 | if (!ToImpl) { |
5297 | |
5298 | Error Err = Error::success(); |
5299 | auto ToBeginLoc = importChecked(Err, D->getBeginLoc()); |
5300 | auto ToLocation = importChecked(Err, D->getLocation()); |
5301 | auto ToPropertyIvarDeclLoc = |
5302 | importChecked(Err, D->getPropertyIvarDeclLoc()); |
5303 | if (Err) |
5304 | return std::move(Err); |
5305 | |
5306 | if (GetImportedOrCreateDecl(ToImpl, D, Importer.getToContext(), DC, |
5307 | ToBeginLoc, |
5308 | ToLocation, Property, |
5309 | D->getPropertyImplementation(), Ivar, |
5310 | ToPropertyIvarDeclLoc)) |
5311 | return ToImpl; |
5312 | |
5313 | ToImpl->setLexicalDeclContext(LexicalDC); |
5314 | LexicalDC->addDeclInternal(ToImpl); |
5315 | } else { |
5316 | // Check that we have the same kind of property implementation (@synthesize |
5317 | // vs. @dynamic). |
5318 | if (D->getPropertyImplementation() != ToImpl->getPropertyImplementation()) { |
5319 | Importer.ToDiag(ToImpl->getLocation(), |
5320 | diag::warn_odr_objc_property_impl_kind_inconsistent) |
5321 | << Property->getDeclName() |
5322 | << (ToImpl->getPropertyImplementation() |
5323 | == ObjCPropertyImplDecl::Dynamic); |
5324 | Importer.FromDiag(D->getLocation(), |
5325 | diag::note_odr_objc_property_impl_kind) |
5326 | << D->getPropertyDecl()->getDeclName() |
5327 | << (D->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic); |
5328 | |
5329 | return make_error<ImportError>(ImportError::NameConflict); |
5330 | } |
5331 | |
5332 | // For @synthesize, check that we have the same |
5333 | if (D->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize && |
5334 | Ivar != ToImpl->getPropertyIvarDecl()) { |
5335 | Importer.ToDiag(ToImpl->getPropertyIvarDeclLoc(), |
5336 | diag::warn_odr_objc_synthesize_ivar_inconsistent) |
5337 | << Property->getDeclName() |
5338 | << ToImpl->getPropertyIvarDecl()->getDeclName() |
5339 | << Ivar->getDeclName(); |
5340 | Importer.FromDiag(D->getPropertyIvarDeclLoc(), |
5341 | diag::note_odr_objc_synthesize_ivar_here) |
5342 | << D->getPropertyIvarDecl()->getDeclName(); |
5343 | |
5344 | return make_error<ImportError>(ImportError::NameConflict); |
5345 | } |
5346 | |
5347 | // Merge the existing implementation with the new implementation. |
5348 | Importer.MapImported(D, ToImpl); |
5349 | } |
5350 | |
5351 | return ToImpl; |
5352 | } |
5353 | |
5354 | ExpectedDecl |
5355 | ASTNodeImporter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) { |
5356 | // For template arguments, we adopt the translation unit as our declaration |
5357 | // context. This context will be fixed when the actual template declaration |
5358 | // is created. |
5359 | |
5360 | ExpectedSLoc BeginLocOrErr = import(D->getBeginLoc()); |
5361 | if (!BeginLocOrErr) |
5362 | return BeginLocOrErr.takeError(); |
5363 | |
5364 | ExpectedSLoc LocationOrErr = import(D->getLocation()); |
5365 | if (!LocationOrErr) |
5366 | return LocationOrErr.takeError(); |
5367 | |
5368 | TemplateTypeParmDecl *ToD = nullptr; |
5369 | if (GetImportedOrCreateDecl( |
5370 | ToD, D, Importer.getToContext(), |
5371 | Importer.getToContext().getTranslationUnitDecl(), |
5372 | *BeginLocOrErr, *LocationOrErr, |
5373 | D->getDepth(), D->getIndex(), Importer.Import(D->getIdentifier()), |
5374 | D->wasDeclaredWithTypename(), D->isParameterPack(), |
5375 | D->hasTypeConstraint())) |
5376 | return ToD; |
5377 | |
5378 | // Import the type-constraint |
5379 | if (const TypeConstraint *TC = D->getTypeConstraint()) { |
5380 | |
5381 | Error Err = Error::success(); |
5382 | auto ToNNS = importChecked(Err, TC->getNestedNameSpecifierLoc()); |
5383 | auto ToName = importChecked(Err, TC->getConceptNameInfo().getName()); |
5384 | auto ToNameLoc = importChecked(Err, TC->getConceptNameInfo().getLoc()); |
5385 | auto ToFoundDecl = importChecked(Err, TC->getFoundDecl()); |
5386 | auto ToNamedConcept = importChecked(Err, TC->getNamedConcept()); |
5387 | auto ToIDC = importChecked(Err, TC->getImmediatelyDeclaredConstraint()); |
5388 | if (Err) |
5389 | return std::move(Err); |
5390 | |
5391 | TemplateArgumentListInfo ToTAInfo; |
5392 | const auto *ASTTemplateArgs = TC->getTemplateArgsAsWritten(); |
5393 | if (ASTTemplateArgs) |
5394 | if (Error Err = ImportTemplateArgumentListInfo(*ASTTemplateArgs, |
5395 | ToTAInfo)) |
5396 | return std::move(Err); |
5397 | |
5398 | ToD->setTypeConstraint(ToNNS, DeclarationNameInfo(ToName, ToNameLoc), |
5399 | ToFoundDecl, ToNamedConcept, |
5400 | ASTTemplateArgs ? |
5401 | ASTTemplateArgumentListInfo::Create(Importer.getToContext(), |
5402 | ToTAInfo) : nullptr, |
5403 | ToIDC); |
5404 | } |
5405 | |
5406 | if (D->hasDefaultArgument()) { |
5407 | Expected<TypeSourceInfo *> ToDefaultArgOrErr = |
5408 | import(D->getDefaultArgumentInfo()); |
5409 | if (!ToDefaultArgOrErr) |
5410 | return ToDefaultArgOrErr.takeError(); |
5411 | ToD->setDefaultArgument(*ToDefaultArgOrErr); |
5412 | } |
5413 | |
5414 | return ToD; |
5415 | } |
5416 | |
5417 | ExpectedDecl |
5418 | ASTNodeImporter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) { |
5419 | |
5420 | Error Err = Error::success(); |
5421 | auto ToDeclName = importChecked(Err, D->getDeclName()); |
5422 | auto ToLocation = importChecked(Err, D->getLocation()); |
5423 | auto ToType = importChecked(Err, D->getType()); |
5424 | auto ToTypeSourceInfo = importChecked(Err, D->getTypeSourceInfo()); |
5425 | auto ToInnerLocStart = importChecked(Err, D->getInnerLocStart()); |
5426 | if (Err) |
5427 | return std::move(Err); |
5428 | |
5429 | NonTypeTemplateParmDecl *ToD = nullptr; |
5430 | if (GetImportedOrCreateDecl(ToD, D, Importer.getToContext(), |
5431 | Importer.getToContext().getTranslationUnitDecl(), |
5432 | ToInnerLocStart, ToLocation, D->getDepth(), |
5433 | D->getPosition(), |
5434 | ToDeclName.getAsIdentifierInfo(), ToType, |
5435 | D->isParameterPack(), ToTypeSourceInfo)) |
5436 | return ToD; |
5437 | |
5438 | if (D->hasDefaultArgument()) { |
5439 | ExpectedExpr ToDefaultArgOrErr = import(D->getDefaultArgument()); |
5440 | if (!ToDefaultArgOrErr) |
5441 | return ToDefaultArgOrErr.takeError(); |
5442 | ToD->setDefaultArgument(*ToDefaultArgOrErr); |
5443 | } |
5444 | |
5445 | return ToD; |
5446 | } |
5447 | |
5448 | ExpectedDecl |
5449 | ASTNodeImporter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) { |
5450 | // Import the name of this declaration. |
5451 | auto NameOrErr = import(D->getDeclName()); |
5452 | if (!NameOrErr) |
5453 | return NameOrErr.takeError(); |
5454 | |
5455 | // Import the location of this declaration. |
5456 | ExpectedSLoc LocationOrErr = import(D->getLocation()); |
5457 | if (!LocationOrErr) |
5458 | return LocationOrErr.takeError(); |
5459 | |
5460 | // Import template parameters. |
5461 | auto TemplateParamsOrErr = import(D->getTemplateParameters()); |
5462 | if (!TemplateParamsOrErr) |
5463 | return TemplateParamsOrErr.takeError(); |
5464 | |
5465 | TemplateTemplateParmDecl *ToD = nullptr; |
5466 | if (GetImportedOrCreateDecl( |
5467 | ToD, D, Importer.getToContext(), |
5468 | Importer.getToContext().getTranslationUnitDecl(), *LocationOrErr, |
5469 | D->getDepth(), D->getPosition(), D->isParameterPack(), |
5470 | (*NameOrErr).getAsIdentifierInfo(), *TemplateParamsOrErr)) |
5471 | return ToD; |
5472 | |
5473 | if (D->hasDefaultArgument()) { |
5474 | Expected<TemplateArgumentLoc> ToDefaultArgOrErr = |
5475 | import(D->getDefaultArgument()); |
5476 | if (!ToDefaultArgOrErr) |
5477 | return ToDefaultArgOrErr.takeError(); |
5478 | ToD->setDefaultArgument(Importer.getToContext(), *ToDefaultArgOrErr); |
5479 | } |
5480 | |
5481 | return ToD; |
5482 | } |
5483 | |
5484 | // Returns the definition for a (forward) declaration of a TemplateDecl, if |
5485 | // it has any definition in the redecl chain. |
5486 | template <typename T> static auto getTemplateDefinition(T *D) -> T * { |
5487 | assert(D->getTemplatedDecl() && "Should be called on templates only")((void)0); |
5488 | auto *ToTemplatedDef = D->getTemplatedDecl()->getDefinition(); |
5489 | if (!ToTemplatedDef) |
5490 | return nullptr; |
5491 | auto *TemplateWithDef = ToTemplatedDef->getDescribedTemplate(); |
5492 | return cast_or_null<T>(TemplateWithDef); |
5493 | } |
5494 | |
5495 | ExpectedDecl ASTNodeImporter::VisitClassTemplateDecl(ClassTemplateDecl *D) { |
5496 | |
5497 | // Import the major distinguishing characteristics of this class template. |
5498 | DeclContext *DC, *LexicalDC; |
5499 | DeclarationName Name; |
5500 | SourceLocation Loc; |
5501 | NamedDecl *ToD; |
5502 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
5503 | return std::move(Err); |
5504 | if (ToD) |
5505 | return ToD; |
5506 | |
5507 | ClassTemplateDecl *FoundByLookup = nullptr; |
5508 | |
5509 | // We may already have a template of the same name; try to find and match it. |
5510 | if (!DC->isFunctionOrMethod()) { |
5511 | SmallVector<NamedDecl *, 4> ConflictingDecls; |
5512 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
5513 | for (auto *FoundDecl : FoundDecls) { |
5514 | if (!FoundDecl->isInIdentifierNamespace(Decl::IDNS_Ordinary | |
5515 | Decl::IDNS_TagFriend)) |
5516 | continue; |
5517 | |
5518 | Decl *Found = FoundDecl; |
5519 | auto *FoundTemplate = dyn_cast<ClassTemplateDecl>(Found); |
5520 | if (FoundTemplate) { |
5521 | if (!hasSameVisibilityContextAndLinkage(FoundTemplate, D)) |
5522 | continue; |
5523 | |
5524 | if (IsStructuralMatch(D, FoundTemplate)) { |
5525 | ClassTemplateDecl *TemplateWithDef = |
5526 | getTemplateDefinition(FoundTemplate); |
5527 | if (D->isThisDeclarationADefinition() && TemplateWithDef) |
5528 | return Importer.MapImported(D, TemplateWithDef); |
5529 | if (!FoundByLookup) |
5530 | FoundByLookup = FoundTemplate; |
5531 | // Search in all matches because there may be multiple decl chains, |
5532 | // see ASTTests test ImportExistingFriendClassTemplateDef. |
5533 | continue; |
5534 | } |
5535 | ConflictingDecls.push_back(FoundDecl); |
5536 | } |
5537 | } |
5538 | |
5539 | if (!ConflictingDecls.empty()) { |
5540 | ExpectedName NameOrErr = Importer.HandleNameConflict( |
5541 | Name, DC, Decl::IDNS_Ordinary, ConflictingDecls.data(), |
5542 | ConflictingDecls.size()); |
5543 | if (NameOrErr) |
5544 | Name = NameOrErr.get(); |
5545 | else |
5546 | return NameOrErr.takeError(); |
5547 | } |
5548 | } |
5549 | |
5550 | CXXRecordDecl *FromTemplated = D->getTemplatedDecl(); |
5551 | |
5552 | auto TemplateParamsOrErr = import(D->getTemplateParameters()); |
5553 | if (!TemplateParamsOrErr) |
5554 | return TemplateParamsOrErr.takeError(); |
5555 | |
5556 | // Create the declaration that is being templated. |
5557 | CXXRecordDecl *ToTemplated; |
5558 | if (Error Err = importInto(ToTemplated, FromTemplated)) |
5559 | return std::move(Err); |
5560 | |
5561 | // Create the class template declaration itself. |
5562 | ClassTemplateDecl *D2; |
5563 | if (GetImportedOrCreateDecl(D2, D, Importer.getToContext(), DC, Loc, Name, |
5564 | *TemplateParamsOrErr, ToTemplated)) |
5565 | return D2; |
5566 | |
5567 | ToTemplated->setDescribedClassTemplate(D2); |
5568 | |
5569 | D2->setAccess(D->getAccess()); |
5570 | D2->setLexicalDeclContext(LexicalDC); |
5571 | |
5572 | addDeclToContexts(D, D2); |
5573 | updateLookupTableForTemplateParameters(**TemplateParamsOrErr); |
5574 | |
5575 | if (FoundByLookup) { |
5576 | auto *Recent = |
5577 | const_cast<ClassTemplateDecl *>(FoundByLookup->getMostRecentDecl()); |
5578 | |
5579 | // It is possible that during the import of the class template definition |
5580 | // we start the import of a fwd friend decl of the very same class template |
5581 | // and we add the fwd friend decl to the lookup table. But the ToTemplated |
5582 | // had been created earlier and by that time the lookup could not find |
5583 | // anything existing, so it has no previous decl. Later, (still during the |
5584 | // import of the fwd friend decl) we start to import the definition again |
5585 | // and this time the lookup finds the previous fwd friend class template. |
5586 | // In this case we must set up the previous decl for the templated decl. |
5587 | if (!ToTemplated->getPreviousDecl()) { |
5588 | assert(FoundByLookup->getTemplatedDecl() &&((void)0) |
5589 | "Found decl must have its templated decl set")((void)0); |
5590 | CXXRecordDecl *PrevTemplated = |
5591 | FoundByLookup->getTemplatedDecl()->getMostRecentDecl(); |
5592 | if (ToTemplated != PrevTemplated) |
5593 | ToTemplated->setPreviousDecl(PrevTemplated); |
5594 | } |
5595 | |
5596 | D2->setPreviousDecl(Recent); |
5597 | } |
5598 | |
5599 | if (FromTemplated->isCompleteDefinition() && |
5600 | !ToTemplated->isCompleteDefinition()) { |
5601 | // FIXME: Import definition! |
5602 | } |
5603 | |
5604 | return D2; |
5605 | } |
5606 | |
5607 | ExpectedDecl ASTNodeImporter::VisitClassTemplateSpecializationDecl( |
5608 | ClassTemplateSpecializationDecl *D) { |
5609 | ClassTemplateDecl *ClassTemplate; |
5610 | if (Error Err = importInto(ClassTemplate, D->getSpecializedTemplate())) |
5611 | return std::move(Err); |
5612 | |
5613 | // Import the context of this declaration. |
5614 | DeclContext *DC, *LexicalDC; |
5615 | if (Error Err = ImportDeclContext(D, DC, LexicalDC)) |
5616 | return std::move(Err); |
5617 | |
5618 | // Import template arguments. |
5619 | SmallVector<TemplateArgument, 2> TemplateArgs; |
5620 | if (Error Err = ImportTemplateArguments( |
5621 | D->getTemplateArgs().data(), D->getTemplateArgs().size(), TemplateArgs)) |
5622 | return std::move(Err); |
5623 | // Try to find an existing specialization with these template arguments and |
5624 | // template parameter list. |
5625 | void *InsertPos = nullptr; |
5626 | ClassTemplateSpecializationDecl *PrevDecl = nullptr; |
5627 | ClassTemplatePartialSpecializationDecl *PartialSpec = |
5628 | dyn_cast<ClassTemplatePartialSpecializationDecl>(D); |
5629 | |
5630 | // Import template parameters. |
5631 | TemplateParameterList *ToTPList = nullptr; |
5632 | |
5633 | if (PartialSpec) { |
5634 | auto ToTPListOrErr = import(PartialSpec->getTemplateParameters()); |
5635 | if (!ToTPListOrErr) |
5636 | return ToTPListOrErr.takeError(); |
5637 | ToTPList = *ToTPListOrErr; |
5638 | PrevDecl = ClassTemplate->findPartialSpecialization(TemplateArgs, |
5639 | *ToTPListOrErr, |
5640 | InsertPos); |
5641 | } else |
5642 | PrevDecl = ClassTemplate->findSpecialization(TemplateArgs, InsertPos); |
5643 | |
5644 | if (PrevDecl) { |
5645 | if (IsStructuralMatch(D, PrevDecl)) { |
5646 | CXXRecordDecl *PrevDefinition = PrevDecl->getDefinition(); |
5647 | if (D->isThisDeclarationADefinition() && PrevDefinition) { |
5648 | Importer.MapImported(D, PrevDefinition); |
5649 | // Import those default field initializers which have been |
5650 | // instantiated in the "From" context, but not in the "To" context. |
5651 | for (auto *FromField : D->fields()) { |
5652 | auto ToOrErr = import(FromField); |
5653 | if (!ToOrErr) |
5654 | return ToOrErr.takeError(); |
5655 | } |
5656 | |
5657 | // Import those methods which have been instantiated in the |
5658 | // "From" context, but not in the "To" context. |
5659 | for (CXXMethodDecl *FromM : D->methods()) { |
5660 | auto ToOrErr = import(FromM); |
5661 | if (!ToOrErr) |
5662 | return ToOrErr.takeError(); |
5663 | } |
5664 | |
5665 | // TODO Import instantiated default arguments. |
5666 | // TODO Import instantiated exception specifications. |
5667 | // |
5668 | // Generally, ASTCommon.h/DeclUpdateKind enum gives a very good hint |
5669 | // what else could be fused during an AST merge. |
5670 | return PrevDefinition; |
5671 | } |
5672 | } else { // ODR violation. |
5673 | // FIXME HandleNameConflict |
5674 | return make_error<ImportError>(ImportError::NameConflict); |
5675 | } |
5676 | } |
5677 | |
5678 | // Import the location of this declaration. |
5679 | ExpectedSLoc BeginLocOrErr = import(D->getBeginLoc()); |
5680 | if (!BeginLocOrErr) |
5681 | return BeginLocOrErr.takeError(); |
5682 | ExpectedSLoc IdLocOrErr = import(D->getLocation()); |
5683 | if (!IdLocOrErr) |
5684 | return IdLocOrErr.takeError(); |
5685 | |
5686 | // Create the specialization. |
5687 | ClassTemplateSpecializationDecl *D2 = nullptr; |
5688 | if (PartialSpec) { |
5689 | // Import TemplateArgumentListInfo. |
5690 | TemplateArgumentListInfo ToTAInfo; |
5691 | const auto &ASTTemplateArgs = *PartialSpec->getTemplateArgsAsWritten(); |
5692 | if (Error Err = ImportTemplateArgumentListInfo(ASTTemplateArgs, ToTAInfo)) |
5693 | return std::move(Err); |
5694 | |
5695 | QualType CanonInjType; |
5696 | if (Error Err = importInto( |
5697 | CanonInjType, PartialSpec->getInjectedSpecializationType())) |
5698 | return std::move(Err); |
5699 | CanonInjType = CanonInjType.getCanonicalType(); |
5700 | |
5701 | if (GetImportedOrCreateDecl<ClassTemplatePartialSpecializationDecl>( |
5702 | D2, D, Importer.getToContext(), D->getTagKind(), DC, |
5703 | *BeginLocOrErr, *IdLocOrErr, ToTPList, ClassTemplate, |
5704 | llvm::makeArrayRef(TemplateArgs.data(), TemplateArgs.size()), |
5705 | ToTAInfo, CanonInjType, |
5706 | cast_or_null<ClassTemplatePartialSpecializationDecl>(PrevDecl))) |
5707 | return D2; |
5708 | |
5709 | // Update InsertPos, because preceding import calls may have invalidated |
5710 | // it by adding new specializations. |
5711 | auto *PartSpec2 = cast<ClassTemplatePartialSpecializationDecl>(D2); |
5712 | if (!ClassTemplate->findPartialSpecialization(TemplateArgs, ToTPList, |
5713 | InsertPos)) |
5714 | // Add this partial specialization to the class template. |
5715 | ClassTemplate->AddPartialSpecialization(PartSpec2, InsertPos); |
5716 | |
5717 | updateLookupTableForTemplateParameters(*ToTPList); |
5718 | } else { // Not a partial specialization. |
5719 | if (GetImportedOrCreateDecl( |
5720 | D2, D, Importer.getToContext(), D->getTagKind(), DC, |
5721 | *BeginLocOrErr, *IdLocOrErr, ClassTemplate, TemplateArgs, |
5722 | PrevDecl)) |
5723 | return D2; |
5724 | |
5725 | // Update InsertPos, because preceding import calls may have invalidated |
5726 | // it by adding new specializations. |
5727 | if (!ClassTemplate->findSpecialization(TemplateArgs, InsertPos)) |
5728 | // Add this specialization to the class template. |
5729 | ClassTemplate->AddSpecialization(D2, InsertPos); |
5730 | } |
5731 | |
5732 | D2->setSpecializationKind(D->getSpecializationKind()); |
5733 | |
5734 | // Set the context of this specialization/instantiation. |
5735 | D2->setLexicalDeclContext(LexicalDC); |
5736 | |
5737 | // Add to the DC only if it was an explicit specialization/instantiation. |
5738 | if (D2->isExplicitInstantiationOrSpecialization()) { |
5739 | LexicalDC->addDeclInternal(D2); |
5740 | } |
5741 | |
5742 | if (auto BraceRangeOrErr = import(D->getBraceRange())) |
5743 | D2->setBraceRange(*BraceRangeOrErr); |
5744 | else |
5745 | return BraceRangeOrErr.takeError(); |
5746 | |
5747 | // Import the qualifier, if any. |
5748 | if (auto LocOrErr = import(D->getQualifierLoc())) |
5749 | D2->setQualifierInfo(*LocOrErr); |
5750 | else |
5751 | return LocOrErr.takeError(); |
5752 | |
5753 | if (auto *TSI = D->getTypeAsWritten()) { |
5754 | if (auto TInfoOrErr = import(TSI)) |
5755 | D2->setTypeAsWritten(*TInfoOrErr); |
5756 | else |
5757 | return TInfoOrErr.takeError(); |
5758 | |
5759 | if (auto LocOrErr = import(D->getTemplateKeywordLoc())) |
5760 | D2->setTemplateKeywordLoc(*LocOrErr); |
5761 | else |
5762 | return LocOrErr.takeError(); |
5763 | |
5764 | if (auto LocOrErr = import(D->getExternLoc())) |
5765 | D2->setExternLoc(*LocOrErr); |
5766 | else |
5767 | return LocOrErr.takeError(); |
5768 | } |
5769 | |
5770 | if (D->getPointOfInstantiation().isValid()) { |
5771 | if (auto POIOrErr = import(D->getPointOfInstantiation())) |
5772 | D2->setPointOfInstantiation(*POIOrErr); |
5773 | else |
5774 | return POIOrErr.takeError(); |
5775 | } |
5776 | |
5777 | D2->setTemplateSpecializationKind(D->getTemplateSpecializationKind()); |
5778 | |
5779 | if (D->isCompleteDefinition()) |
5780 | if (Error Err = ImportDefinition(D, D2)) |
5781 | return std::move(Err); |
5782 | |
5783 | return D2; |
5784 | } |
5785 | |
5786 | ExpectedDecl ASTNodeImporter::VisitVarTemplateDecl(VarTemplateDecl *D) { |
5787 | // Import the major distinguishing characteristics of this variable template. |
5788 | DeclContext *DC, *LexicalDC; |
5789 | DeclarationName Name; |
5790 | SourceLocation Loc; |
5791 | NamedDecl *ToD; |
5792 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
5793 | return std::move(Err); |
5794 | if (ToD) |
5795 | return ToD; |
5796 | |
5797 | // We may already have a template of the same name; try to find and match it. |
5798 | assert(!DC->isFunctionOrMethod() &&((void)0) |
5799 | "Variable templates cannot be declared at function scope")((void)0); |
5800 | |
5801 | SmallVector<NamedDecl *, 4> ConflictingDecls; |
5802 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
5803 | VarTemplateDecl *FoundByLookup = nullptr; |
5804 | for (auto *FoundDecl : FoundDecls) { |
5805 | if (!FoundDecl->isInIdentifierNamespace(Decl::IDNS_Ordinary)) |
5806 | continue; |
5807 | |
5808 | if (VarTemplateDecl *FoundTemplate = dyn_cast<VarTemplateDecl>(FoundDecl)) { |
5809 | // Use the templated decl, some linkage flags are set only there. |
5810 | if (!hasSameVisibilityContextAndLinkage(FoundTemplate->getTemplatedDecl(), |
5811 | D->getTemplatedDecl())) |
5812 | continue; |
5813 | if (IsStructuralMatch(D, FoundTemplate)) { |
5814 | // The Decl in the "From" context has a definition, but in the |
5815 | // "To" context we already have a definition. |
5816 | VarTemplateDecl *FoundDef = getTemplateDefinition(FoundTemplate); |
5817 | if (D->isThisDeclarationADefinition() && FoundDef) |
5818 | // FIXME Check for ODR error if the two definitions have |
5819 | // different initializers? |
5820 | return Importer.MapImported(D, FoundDef); |
5821 | |
5822 | FoundByLookup = FoundTemplate; |
5823 | break; |
5824 | } |
5825 | ConflictingDecls.push_back(FoundDecl); |
5826 | } |
5827 | } |
5828 | |
5829 | if (!ConflictingDecls.empty()) { |
5830 | ExpectedName NameOrErr = Importer.HandleNameConflict( |
5831 | Name, DC, Decl::IDNS_Ordinary, ConflictingDecls.data(), |
5832 | ConflictingDecls.size()); |
5833 | if (NameOrErr) |
5834 | Name = NameOrErr.get(); |
5835 | else |
5836 | return NameOrErr.takeError(); |
5837 | } |
5838 | |
5839 | VarDecl *DTemplated = D->getTemplatedDecl(); |
5840 | |
5841 | // Import the type. |
5842 | // FIXME: Value not used? |
5843 | ExpectedType TypeOrErr = import(DTemplated->getType()); |
5844 | if (!TypeOrErr) |
5845 | return TypeOrErr.takeError(); |
5846 | |
5847 | // Create the declaration that is being templated. |
5848 | VarDecl *ToTemplated; |
5849 | if (Error Err = importInto(ToTemplated, DTemplated)) |
5850 | return std::move(Err); |
5851 | |
5852 | // Create the variable template declaration itself. |
5853 | auto TemplateParamsOrErr = import(D->getTemplateParameters()); |
5854 | if (!TemplateParamsOrErr) |
5855 | return TemplateParamsOrErr.takeError(); |
5856 | |
5857 | VarTemplateDecl *ToVarTD; |
5858 | if (GetImportedOrCreateDecl(ToVarTD, D, Importer.getToContext(), DC, Loc, |
5859 | Name, *TemplateParamsOrErr, ToTemplated)) |
5860 | return ToVarTD; |
5861 | |
5862 | ToTemplated->setDescribedVarTemplate(ToVarTD); |
5863 | |
5864 | ToVarTD->setAccess(D->getAccess()); |
5865 | ToVarTD->setLexicalDeclContext(LexicalDC); |
5866 | LexicalDC->addDeclInternal(ToVarTD); |
5867 | if (DC != Importer.getToContext().getTranslationUnitDecl()) |
5868 | updateLookupTableForTemplateParameters(**TemplateParamsOrErr); |
5869 | |
5870 | if (FoundByLookup) { |
5871 | auto *Recent = |
5872 | const_cast<VarTemplateDecl *>(FoundByLookup->getMostRecentDecl()); |
5873 | if (!ToTemplated->getPreviousDecl()) { |
5874 | auto *PrevTemplated = |
5875 | FoundByLookup->getTemplatedDecl()->getMostRecentDecl(); |
5876 | if (ToTemplated != PrevTemplated) |
5877 | ToTemplated->setPreviousDecl(PrevTemplated); |
5878 | } |
5879 | ToVarTD->setPreviousDecl(Recent); |
5880 | } |
5881 | |
5882 | if (DTemplated->isThisDeclarationADefinition() && |
5883 | !ToTemplated->isThisDeclarationADefinition()) { |
5884 | // FIXME: Import definition! |
5885 | } |
5886 | |
5887 | return ToVarTD; |
5888 | } |
5889 | |
5890 | ExpectedDecl ASTNodeImporter::VisitVarTemplateSpecializationDecl( |
5891 | VarTemplateSpecializationDecl *D) { |
5892 | // If this record has a definition in the translation unit we're coming from, |
5893 | // but this particular declaration is not that definition, import the |
5894 | // definition and map to that. |
5895 | VarDecl *Definition = D->getDefinition(); |
5896 | if (Definition && Definition != D) { |
5897 | if (ExpectedDecl ImportedDefOrErr = import(Definition)) |
5898 | return Importer.MapImported(D, *ImportedDefOrErr); |
5899 | else |
5900 | return ImportedDefOrErr.takeError(); |
5901 | } |
5902 | |
5903 | VarTemplateDecl *VarTemplate = nullptr; |
5904 | if (Error Err = importInto(VarTemplate, D->getSpecializedTemplate())) |
5905 | return std::move(Err); |
5906 | |
5907 | // Import the context of this declaration. |
5908 | DeclContext *DC, *LexicalDC; |
5909 | if (Error Err = ImportDeclContext(D, DC, LexicalDC)) |
5910 | return std::move(Err); |
5911 | |
5912 | // Import the location of this declaration. |
5913 | ExpectedSLoc BeginLocOrErr = import(D->getBeginLoc()); |
5914 | if (!BeginLocOrErr) |
5915 | return BeginLocOrErr.takeError(); |
5916 | |
5917 | auto IdLocOrErr = import(D->getLocation()); |
5918 | if (!IdLocOrErr) |
5919 | return IdLocOrErr.takeError(); |
5920 | |
5921 | // Import template arguments. |
5922 | SmallVector<TemplateArgument, 2> TemplateArgs; |
5923 | if (Error Err = ImportTemplateArguments( |
5924 | D->getTemplateArgs().data(), D->getTemplateArgs().size(), TemplateArgs)) |
5925 | return std::move(Err); |
5926 | |
5927 | // Try to find an existing specialization with these template arguments. |
5928 | void *InsertPos = nullptr; |
5929 | VarTemplateSpecializationDecl *D2 = VarTemplate->findSpecialization( |
5930 | TemplateArgs, InsertPos); |
5931 | if (D2) { |
5932 | // We already have a variable template specialization with these template |
5933 | // arguments. |
5934 | |
5935 | // FIXME: Check for specialization vs. instantiation errors. |
5936 | |
5937 | if (VarDecl *FoundDef = D2->getDefinition()) { |
5938 | if (!D->isThisDeclarationADefinition() || |
5939 | IsStructuralMatch(D, FoundDef)) { |
5940 | // The record types structurally match, or the "from" translation |
5941 | // unit only had a forward declaration anyway; call it the same |
5942 | // variable. |
5943 | return Importer.MapImported(D, FoundDef); |
5944 | } |
5945 | } |
5946 | } else { |
5947 | // Import the type. |
5948 | QualType T; |
5949 | if (Error Err = importInto(T, D->getType())) |
5950 | return std::move(Err); |
5951 | |
5952 | auto TInfoOrErr = import(D->getTypeSourceInfo()); |
5953 | if (!TInfoOrErr) |
5954 | return TInfoOrErr.takeError(); |
5955 | |
5956 | TemplateArgumentListInfo ToTAInfo; |
5957 | if (Error Err = ImportTemplateArgumentListInfo( |
5958 | D->getTemplateArgsInfo(), ToTAInfo)) |
5959 | return std::move(Err); |
5960 | |
5961 | using PartVarSpecDecl = VarTemplatePartialSpecializationDecl; |
5962 | // Create a new specialization. |
5963 | if (auto *FromPartial = dyn_cast<PartVarSpecDecl>(D)) { |
5964 | // Import TemplateArgumentListInfo |
5965 | TemplateArgumentListInfo ArgInfos; |
5966 | const auto *FromTAArgsAsWritten = FromPartial->getTemplateArgsAsWritten(); |
5967 | // NOTE: FromTAArgsAsWritten and template parameter list are non-null. |
5968 | if (Error Err = ImportTemplateArgumentListInfo( |
5969 | *FromTAArgsAsWritten, ArgInfos)) |
5970 | return std::move(Err); |
5971 | |
5972 | auto ToTPListOrErr = import(FromPartial->getTemplateParameters()); |
5973 | if (!ToTPListOrErr) |
5974 | return ToTPListOrErr.takeError(); |
5975 | |
5976 | PartVarSpecDecl *ToPartial; |
5977 | if (GetImportedOrCreateDecl(ToPartial, D, Importer.getToContext(), DC, |
5978 | *BeginLocOrErr, *IdLocOrErr, *ToTPListOrErr, |
5979 | VarTemplate, T, *TInfoOrErr, |
5980 | D->getStorageClass(), TemplateArgs, ArgInfos)) |
5981 | return ToPartial; |
5982 | |
5983 | if (Expected<PartVarSpecDecl *> ToInstOrErr = import( |
5984 | FromPartial->getInstantiatedFromMember())) |
5985 | ToPartial->setInstantiatedFromMember(*ToInstOrErr); |
5986 | else |
5987 | return ToInstOrErr.takeError(); |
5988 | |
5989 | if (FromPartial->isMemberSpecialization()) |
5990 | ToPartial->setMemberSpecialization(); |
5991 | |
5992 | D2 = ToPartial; |
5993 | |
5994 | // FIXME: Use this update if VarTemplatePartialSpecializationDecl is fixed |
5995 | // to adopt template parameters. |
5996 | // updateLookupTableForTemplateParameters(**ToTPListOrErr); |
5997 | } else { // Full specialization |
5998 | if (GetImportedOrCreateDecl(D2, D, Importer.getToContext(), DC, |
5999 | *BeginLocOrErr, *IdLocOrErr, VarTemplate, |
6000 | T, *TInfoOrErr, |
6001 | D->getStorageClass(), TemplateArgs)) |
6002 | return D2; |
6003 | } |
6004 | |
6005 | if (D->getPointOfInstantiation().isValid()) { |
6006 | if (ExpectedSLoc POIOrErr = import(D->getPointOfInstantiation())) |
6007 | D2->setPointOfInstantiation(*POIOrErr); |
6008 | else |
6009 | return POIOrErr.takeError(); |
6010 | } |
6011 | |
6012 | D2->setSpecializationKind(D->getSpecializationKind()); |
6013 | D2->setTemplateArgsInfo(ToTAInfo); |
6014 | |
6015 | // Add this specialization to the class template. |
6016 | VarTemplate->AddSpecialization(D2, InsertPos); |
6017 | |
6018 | // Import the qualifier, if any. |
6019 | if (auto LocOrErr = import(D->getQualifierLoc())) |
6020 | D2->setQualifierInfo(*LocOrErr); |
6021 | else |
6022 | return LocOrErr.takeError(); |
6023 | |
6024 | if (D->isConstexpr()) |
6025 | D2->setConstexpr(true); |
6026 | |
6027 | // Add the specialization to this context. |
6028 | D2->setLexicalDeclContext(LexicalDC); |
6029 | LexicalDC->addDeclInternal(D2); |
6030 | |
6031 | D2->setAccess(D->getAccess()); |
6032 | } |
6033 | |
6034 | if (Error Err = ImportInitializer(D, D2)) |
6035 | return std::move(Err); |
6036 | |
6037 | return D2; |
6038 | } |
6039 | |
6040 | ExpectedDecl |
6041 | ASTNodeImporter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { |
6042 | DeclContext *DC, *LexicalDC; |
6043 | DeclarationName Name; |
6044 | SourceLocation Loc; |
6045 | NamedDecl *ToD; |
6046 | |
6047 | if (Error Err = ImportDeclParts(D, DC, LexicalDC, Name, ToD, Loc)) |
6048 | return std::move(Err); |
6049 | |
6050 | if (ToD) |
6051 | return ToD; |
6052 | |
6053 | const FunctionTemplateDecl *FoundByLookup = nullptr; |
6054 | |
6055 | // Try to find a function in our own ("to") context with the same name, same |
6056 | // type, and in the same context as the function we're importing. |
6057 | // FIXME Split this into a separate function. |
6058 | if (!LexicalDC->isFunctionOrMethod()) { |
6059 | unsigned IDNS = Decl::IDNS_Ordinary | Decl::IDNS_OrdinaryFriend; |
6060 | auto FoundDecls = Importer.findDeclsInToCtx(DC, Name); |
6061 | for (auto *FoundDecl : FoundDecls) { |
6062 | if (!FoundDecl->isInIdentifierNamespace(IDNS)) |
6063 | continue; |
6064 | |
6065 | if (auto *FoundTemplate = dyn_cast<FunctionTemplateDecl>(FoundDecl)) { |
6066 | if (!hasSameVisibilityContextAndLinkage(FoundTemplate, D)) |
6067 | continue; |
6068 | if (IsStructuralMatch(D, FoundTemplate)) { |
6069 | FunctionTemplateDecl *TemplateWithDef = |
6070 | getTemplateDefinition(FoundTemplate); |
6071 | if (D->isThisDeclarationADefinition() && TemplateWithDef) |
6072 | return Importer.MapImported(D, TemplateWithDef); |
6073 | |
6074 | FoundByLookup = FoundTemplate; |
6075 | break; |
6076 | // TODO: handle conflicting names |
6077 | } |
6078 | } |
6079 | } |
6080 | } |
6081 | |
6082 | auto ParamsOrErr = import(D->getTemplateParameters()); |
6083 | if (!ParamsOrErr) |
6084 | return ParamsOrErr.takeError(); |
6085 | TemplateParameterList *Params = *ParamsOrErr; |
6086 | |
6087 | FunctionDecl *TemplatedFD; |
6088 | if (Error Err = importInto(TemplatedFD, D->getTemplatedDecl())) |
6089 | return std::move(Err); |
6090 | |
6091 | // Template parameters of the ClassTemplateDecl and FunctionTemplateDecl are |
6092 | // shared, if the FunctionTemplateDecl is a deduction guide for the class. |
6093 | // At import the ClassTemplateDecl object is always created first (FIXME: is |
6094 | // this really true?) because the dependency, then the FunctionTemplateDecl. |
6095 | // The DeclContext of the template parameters is changed when the |
6096 | // FunctionTemplateDecl is created, but was set already when the class |
6097 | // template was created. So here it is not the TU (default value) any more. |
6098 | // FIXME: The DeclContext of the parameters is now set finally to the |
6099 | // CXXDeductionGuideDecl object that was imported later. This may not be the |
6100 | // same that is in the original AST, specially if there are multiple deduction |
6101 | // guides. |
6102 | DeclContext *OldParamDC = nullptr; |
6103 | if (Params->size() > 0) |
6104 | OldParamDC = Params->getParam(0)->getDeclContext(); |
6105 | |
6106 | FunctionTemplateDecl *ToFunc; |
6107 | if (GetImportedOrCreateDecl(ToFunc, D, Importer.getToContext(), DC, Loc, Name, |
6108 | Params, TemplatedFD)) |
6109 | return ToFunc; |
6110 | |
6111 | TemplatedFD->setDescribedFunctionTemplate(ToFunc); |
6112 | |
6113 | ToFunc->setAccess(D->getAccess()); |
6114 | ToFunc->setLexicalDeclContext(LexicalDC); |
6115 | LexicalDC->addDeclInternal(ToFunc); |
6116 | updateLookupTableForTemplateParameters(*Params, OldParamDC); |
6117 | |
6118 | if (FoundByLookup) { |
6119 | auto *Recent = |
6120 | const_cast<FunctionTemplateDecl *>(FoundByLookup->getMostRecentDecl()); |
6121 | if (!TemplatedFD->getPreviousDecl()) { |
6122 | assert(FoundByLookup->getTemplatedDecl() &&((void)0) |
6123 | "Found decl must have its templated decl set")((void)0); |
6124 | auto *PrevTemplated = |
6125 | FoundByLookup->getTemplatedDecl()->getMostRecentDecl(); |
6126 | if (TemplatedFD != PrevTemplated) |
6127 | TemplatedFD->setPreviousDecl(PrevTemplated); |
6128 | } |
6129 | ToFunc->setPreviousDecl(Recent); |
6130 | } |
6131 | |
6132 | return ToFunc; |
6133 | } |
6134 | |
6135 | //---------------------------------------------------------------------------- |
6136 | // Import Statements |
6137 | //---------------------------------------------------------------------------- |
6138 | |
6139 | ExpectedStmt ASTNodeImporter::VisitStmt(Stmt *S) { |
6140 | Importer.FromDiag(S->getBeginLoc(), diag::err_unsupported_ast_node) |
6141 | << S->getStmtClassName(); |
6142 | return make_error<ImportError>(ImportError::UnsupportedConstruct); |
6143 | } |
6144 | |
6145 | |
6146 | ExpectedStmt ASTNodeImporter::VisitGCCAsmStmt(GCCAsmStmt *S) { |
6147 | if (Importer.returnWithErrorInTest()) |
6148 | return make_error<ImportError>(ImportError::UnsupportedConstruct); |
6149 | SmallVector<IdentifierInfo *, 4> Names; |
6150 | for (unsigned I = 0, E = S->getNumOutputs(); I != E; I++) { |
6151 | IdentifierInfo *ToII = Importer.Import(S->getOutputIdentifier(I)); |
6152 | // ToII is nullptr when no symbolic name is given for output operand |
6153 | // see ParseStmtAsm::ParseAsmOperandsOpt |
6154 | Names.push_back(ToII); |
6155 | } |
6156 | |
6157 | for (unsigned I = 0, E = S->getNumInputs(); I != E; I++) { |
6158 | IdentifierInfo *ToII = Importer.Import(S->getInputIdentifier(I)); |
6159 | // ToII is nullptr when no symbolic name is given for input operand |
6160 | // see ParseStmtAsm::ParseAsmOperandsOpt |
6161 | Names.push_back(ToII); |
6162 | } |
6163 | |
6164 | SmallVector<StringLiteral *, 4> Clobbers; |
6165 | for (unsigned I = 0, E = S->getNumClobbers(); I != E; I++) { |
6166 | if (auto ClobberOrErr = import(S->getClobberStringLiteral(I))) |
6167 | Clobbers.push_back(*ClobberOrErr); |
6168 | else |
6169 | return ClobberOrErr.takeError(); |
6170 | |
6171 | } |
6172 | |
6173 | SmallVector<StringLiteral *, 4> Constraints; |
6174 | for (unsigned I = 0, E = S->getNumOutputs(); I != E; I++) { |
6175 | if (auto OutputOrErr = import(S->getOutputConstraintLiteral(I))) |
6176 | Constraints.push_back(*OutputOrErr); |
6177 | else |
6178 | return OutputOrErr.takeError(); |
6179 | } |
6180 | |
6181 | for (unsigned I = 0, E = S->getNumInputs(); I != E; I++) { |
6182 | if (auto InputOrErr = import(S->getInputConstraintLiteral(I))) |
6183 | Constraints.push_back(*InputOrErr); |
6184 | else |
6185 | return InputOrErr.takeError(); |
6186 | } |
6187 | |
6188 | SmallVector<Expr *, 4> Exprs(S->getNumOutputs() + S->getNumInputs() + |
6189 | S->getNumLabels()); |
6190 | if (Error Err = ImportContainerChecked(S->outputs(), Exprs)) |
6191 | return std::move(Err); |
6192 | |
6193 | if (Error Err = |
6194 | ImportArrayChecked(S->inputs(), Exprs.begin() + S->getNumOutputs())) |
6195 | return std::move(Err); |
6196 | |
6197 | if (Error Err = ImportArrayChecked( |
6198 | S->labels(), Exprs.begin() + S->getNumOutputs() + S->getNumInputs())) |
6199 | return std::move(Err); |
6200 | |
6201 | ExpectedSLoc AsmLocOrErr = import(S->getAsmLoc()); |
6202 | if (!AsmLocOrErr) |
6203 | return AsmLocOrErr.takeError(); |
6204 | auto AsmStrOrErr = import(S->getAsmString()); |
6205 | if (!AsmStrOrErr) |
6206 | return AsmStrOrErr.takeError(); |
6207 | ExpectedSLoc RParenLocOrErr = import(S->getRParenLoc()); |
6208 | if (!RParenLocOrErr) |
6209 | return RParenLocOrErr.takeError(); |
6210 | |
6211 | return new (Importer.getToContext()) GCCAsmStmt( |
6212 | Importer.getToContext(), |
6213 | *AsmLocOrErr, |
6214 | S->isSimple(), |
6215 | S->isVolatile(), |
6216 | S->getNumOutputs(), |
6217 | S->getNumInputs(), |
6218 | Names.data(), |
6219 | Constraints.data(), |
6220 | Exprs.data(), |
6221 | *AsmStrOrErr, |
6222 | S->getNumClobbers(), |
6223 | Clobbers.data(), |
6224 | S->getNumLabels(), |
6225 | *RParenLocOrErr); |
6226 | } |
6227 | |
6228 | ExpectedStmt ASTNodeImporter::VisitDeclStmt(DeclStmt *S) { |
6229 | |
6230 | Error Err = Error::success(); |
6231 | auto ToDG = importChecked(Err, S->getDeclGroup()); |
6232 | auto ToBeginLoc = importChecked(Err, S->getBeginLoc()); |
6233 | auto ToEndLoc = importChecked(Err, S->getEndLoc()); |
6234 | if (Err) |
6235 | return std::move(Err); |
6236 | return new (Importer.getToContext()) DeclStmt(ToDG, ToBeginLoc, ToEndLoc); |
6237 | } |
6238 | |
6239 | ExpectedStmt ASTNodeImporter::VisitNullStmt(NullStmt *S) { |
6240 | ExpectedSLoc ToSemiLocOrErr = import(S->getSemiLoc()); |
6241 | if (!ToSemiLocOrErr) |
6242 | return ToSemiLocOrErr.takeError(); |
6243 | return new (Importer.getToContext()) NullStmt( |
6244 | *ToSemiLocOrErr, S->hasLeadingEmptyMacro()); |
6245 | } |
6246 | |
6247 | ExpectedStmt ASTNodeImporter::VisitCompoundStmt(CompoundStmt *S) { |
6248 | SmallVector<Stmt *, 8> ToStmts(S->size()); |
6249 | |
6250 | if (Error Err = ImportContainerChecked(S->body(), ToStmts)) |
6251 | return std::move(Err); |
6252 | |
6253 | ExpectedSLoc ToLBracLocOrErr = import(S->getLBracLoc()); |
6254 | if (!ToLBracLocOrErr) |
6255 | return ToLBracLocOrErr.takeError(); |
6256 | |
6257 | ExpectedSLoc ToRBracLocOrErr = import(S->getRBracLoc()); |
6258 | if (!ToRBracLocOrErr) |
6259 | return ToRBracLocOrErr.takeError(); |
6260 | |
6261 | return CompoundStmt::Create( |
6262 | Importer.getToContext(), ToStmts, |
6263 | *ToLBracLocOrErr, *ToRBracLocOrErr); |
6264 | } |
6265 | |
6266 | ExpectedStmt ASTNodeImporter::VisitCaseStmt(CaseStmt *S) { |
6267 | |
6268 | Error Err = Error::success(); |
6269 | auto ToLHS = importChecked(Err, S->getLHS()); |
6270 | auto ToRHS = importChecked(Err, S->getRHS()); |
6271 | auto ToSubStmt = importChecked(Err, S->getSubStmt()); |
6272 | auto ToCaseLoc = importChecked(Err, S->getCaseLoc()); |
6273 | auto ToEllipsisLoc = importChecked(Err, S->getEllipsisLoc()); |
6274 | auto ToColonLoc = importChecked(Err, S->getColonLoc()); |
6275 | if (Err) |
6276 | return std::move(Err); |
6277 | |
6278 | auto *ToStmt = CaseStmt::Create(Importer.getToContext(), ToLHS, ToRHS, |
6279 | ToCaseLoc, ToEllipsisLoc, ToColonLoc); |
6280 | ToStmt->setSubStmt(ToSubStmt); |
6281 | |
6282 | return ToStmt; |
6283 | } |
6284 | |
6285 | ExpectedStmt ASTNodeImporter::VisitDefaultStmt(DefaultStmt *S) { |
6286 | |
6287 | Error Err = Error::success(); |
6288 | auto ToDefaultLoc = importChecked(Err, S->getDefaultLoc()); |
6289 | auto ToColonLoc = importChecked(Err, S->getColonLoc()); |
6290 | auto ToSubStmt = importChecked(Err, S->getSubStmt()); |
6291 | if (Err) |
6292 | return std::move(Err); |
6293 | |
6294 | return new (Importer.getToContext()) DefaultStmt( |
6295 | ToDefaultLoc, ToColonLoc, ToSubStmt); |
6296 | } |
6297 | |
6298 | ExpectedStmt ASTNodeImporter::VisitLabelStmt(LabelStmt *S) { |
6299 | |
6300 | Error Err = Error::success(); |
6301 | auto ToIdentLoc = importChecked(Err, S->getIdentLoc()); |
6302 | auto ToLabelDecl = importChecked(Err, S->getDecl()); |
6303 | auto ToSubStmt = importChecked(Err, S->getSubStmt()); |
6304 | if (Err) |
6305 | return std::move(Err); |
6306 | |
6307 | return new (Importer.getToContext()) LabelStmt( |
6308 | ToIdentLoc, ToLabelDecl, ToSubStmt); |
6309 | } |
6310 | |
6311 | ExpectedStmt ASTNodeImporter::VisitAttributedStmt(AttributedStmt *S) { |
6312 | ExpectedSLoc ToAttrLocOrErr = import(S->getAttrLoc()); |
6313 | if (!ToAttrLocOrErr) |
6314 | return ToAttrLocOrErr.takeError(); |
6315 | ArrayRef<const Attr*> FromAttrs(S->getAttrs()); |
6316 | SmallVector<const Attr *, 1> ToAttrs(FromAttrs.size()); |
6317 | if (Error Err = ImportContainerChecked(FromAttrs, ToAttrs)) |
6318 | return std::move(Err); |
6319 | ExpectedStmt ToSubStmtOrErr = import(S->getSubStmt()); |
6320 | if (!ToSubStmtOrErr) |
6321 | return ToSubStmtOrErr.takeError(); |
6322 | |
6323 | return AttributedStmt::Create( |
6324 | Importer.getToContext(), *ToAttrLocOrErr, ToAttrs, *ToSubStmtOrErr); |
6325 | } |
6326 | |
6327 | ExpectedStmt ASTNodeImporter::VisitIfStmt(IfStmt *S) { |
6328 | |
6329 | Error Err = Error::success(); |
6330 | auto ToIfLoc = importChecked(Err, S->getIfLoc()); |
6331 | auto ToInit = importChecked(Err, S->getInit()); |
6332 | auto ToConditionVariable = importChecked(Err, S->getConditionVariable()); |
6333 | auto ToCond = importChecked(Err, S->getCond()); |
6334 | auto ToLParenLoc = importChecked(Err, S->getLParenLoc()); |
6335 | auto ToRParenLoc = importChecked(Err, S->getRParenLoc()); |
6336 | auto ToThen = importChecked(Err, S->getThen()); |
6337 | auto ToElseLoc = importChecked(Err, S->getElseLoc()); |
6338 | auto ToElse = importChecked(Err, S->getElse()); |
6339 | if (Err) |
6340 | return std::move(Err); |
6341 | |
6342 | return IfStmt::Create(Importer.getToContext(), ToIfLoc, S->isConstexpr(), |
6343 | ToInit, ToConditionVariable, ToCond, ToLParenLoc, |
6344 | ToRParenLoc, ToThen, ToElseLoc, ToElse); |
6345 | } |
6346 | |
6347 | ExpectedStmt ASTNodeImporter::VisitSwitchStmt(SwitchStmt *S) { |
6348 | |
6349 | Error Err = Error::success(); |
6350 | auto ToInit = importChecked(Err, S->getInit()); |
6351 | auto ToConditionVariable = importChecked(Err, S->getConditionVariable()); |
6352 | auto ToCond = importChecked(Err, S->getCond()); |
6353 | auto ToLParenLoc = importChecked(Err, S->getLParenLoc()); |
6354 | auto ToRParenLoc = importChecked(Err, S->getRParenLoc()); |
6355 | auto ToBody = importChecked(Err, S->getBody()); |
6356 | auto ToSwitchLoc = importChecked(Err, S->getSwitchLoc()); |
6357 | if (Err) |
6358 |