clang  3.7.0
ObjCMT.cpp
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1 //===--- ObjCMT.cpp - ObjC Migrate Tool -----------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "Transforms.h"
11 #include "clang/ARCMigrate/ARCMT.h"
13 #include "clang/AST/ASTConsumer.h"
14 #include "clang/AST/ASTContext.h"
15 #include "clang/AST/Attr.h"
16 #include "clang/AST/NSAPI.h"
17 #include "clang/AST/ParentMap.h"
21 #include "clang/Edit/Commit.h"
24 #include "clang/Edit/Rewriters.h"
28 #include "clang/Lex/Preprocessor.h"
31 #include "llvm/ADT/SmallString.h"
32 #include "llvm/ADT/StringSet.h"
33 #include "llvm/Support/Path.h"
34 #include "llvm/Support/SourceMgr.h"
35 #include "llvm/Support/YAMLParser.h"
36 
37 using namespace clang;
38 using namespace arcmt;
39 using namespace ento::objc_retain;
40 
41 namespace {
42 
43 class ObjCMigrateASTConsumer : public ASTConsumer {
44  enum CF_BRIDGING_KIND {
45  CF_BRIDGING_NONE,
46  CF_BRIDGING_ENABLE,
47  CF_BRIDGING_MAY_INCLUDE
48  };
49 
50  void migrateDecl(Decl *D);
51  void migrateObjCContainerDecl(ASTContext &Ctx, ObjCContainerDecl *D);
52  void migrateProtocolConformance(ASTContext &Ctx,
53  const ObjCImplementationDecl *ImpDecl);
54  void CacheObjCNSIntegerTypedefed(const TypedefDecl *TypedefDcl);
55  bool migrateNSEnumDecl(ASTContext &Ctx, const EnumDecl *EnumDcl,
56  const TypedefDecl *TypedefDcl);
57  void migrateAllMethodInstaceType(ASTContext &Ctx, ObjCContainerDecl *CDecl);
58  void migrateMethodInstanceType(ASTContext &Ctx, ObjCContainerDecl *CDecl,
59  ObjCMethodDecl *OM);
60  bool migrateProperty(ASTContext &Ctx, ObjCContainerDecl *D, ObjCMethodDecl *OM);
61  void migrateNsReturnsInnerPointer(ASTContext &Ctx, ObjCMethodDecl *OM);
62  void migratePropertyNsReturnsInnerPointer(ASTContext &Ctx, ObjCPropertyDecl *P);
63  void migrateFactoryMethod(ASTContext &Ctx, ObjCContainerDecl *CDecl,
64  ObjCMethodDecl *OM,
65  ObjCInstanceTypeFamily OIT_Family = OIT_None);
66 
67  void migrateCFAnnotation(ASTContext &Ctx, const Decl *Decl);
68  void AddCFAnnotations(ASTContext &Ctx, const CallEffects &CE,
69  const FunctionDecl *FuncDecl, bool ResultAnnotated);
70  void AddCFAnnotations(ASTContext &Ctx, const CallEffects &CE,
71  const ObjCMethodDecl *MethodDecl, bool ResultAnnotated);
72 
73  void AnnotateImplicitBridging(ASTContext &Ctx);
74 
75  CF_BRIDGING_KIND migrateAddFunctionAnnotation(ASTContext &Ctx,
76  const FunctionDecl *FuncDecl);
77 
78  void migrateARCSafeAnnotation(ASTContext &Ctx, ObjCContainerDecl *CDecl);
79 
80  void migrateAddMethodAnnotation(ASTContext &Ctx,
81  const ObjCMethodDecl *MethodDecl);
82 
83  void inferDesignatedInitializers(ASTContext &Ctx,
84  const ObjCImplementationDecl *ImplD);
85 
86  bool InsertFoundation(ASTContext &Ctx, SourceLocation Loc);
87 
88 public:
89  std::string MigrateDir;
90  unsigned ASTMigrateActions;
91  FileID FileId;
92  const TypedefDecl *NSIntegerTypedefed;
93  const TypedefDecl *NSUIntegerTypedefed;
94  std::unique_ptr<NSAPI> NSAPIObj;
95  std::unique_ptr<edit::EditedSource> Editor;
96  FileRemapper &Remapper;
97  FileManager &FileMgr;
98  const PPConditionalDirectiveRecord *PPRec;
99  Preprocessor &PP;
100  bool IsOutputFile;
101  bool FoundationIncluded;
102  llvm::SmallPtrSet<ObjCProtocolDecl *, 32> ObjCProtocolDecls;
103  llvm::SmallVector<const Decl *, 8> CFFunctionIBCandidates;
104  llvm::StringSet<> WhiteListFilenames;
105 
106  ObjCMigrateASTConsumer(StringRef migrateDir,
107  unsigned astMigrateActions,
108  FileRemapper &remapper,
109  FileManager &fileMgr,
110  const PPConditionalDirectiveRecord *PPRec,
111  Preprocessor &PP,
112  bool isOutputFile,
113  ArrayRef<std::string> WhiteList)
114  : MigrateDir(migrateDir),
115  ASTMigrateActions(astMigrateActions),
116  NSIntegerTypedefed(nullptr), NSUIntegerTypedefed(nullptr),
117  Remapper(remapper), FileMgr(fileMgr), PPRec(PPRec), PP(PP),
118  IsOutputFile(isOutputFile),
119  FoundationIncluded(false){
120 
121  // FIXME: StringSet should have insert(iter, iter) to use here.
122  for (const std::string &Val : WhiteList)
123  WhiteListFilenames.insert(Val);
124  }
125 
126 protected:
127  void Initialize(ASTContext &Context) override {
128  NSAPIObj.reset(new NSAPI(Context));
129  Editor.reset(new edit::EditedSource(Context.getSourceManager(),
130  Context.getLangOpts(),
131  PPRec));
132  }
133 
134  bool HandleTopLevelDecl(DeclGroupRef DG) override {
135  for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I)
136  migrateDecl(*I);
137  return true;
138  }
139  void HandleInterestingDecl(DeclGroupRef DG) override {
140  // Ignore decls from the PCH.
141  }
142  void HandleTopLevelDeclInObjCContainer(DeclGroupRef DG) override {
143  ObjCMigrateASTConsumer::HandleTopLevelDecl(DG);
144  }
145 
146  void HandleTranslationUnit(ASTContext &Ctx) override;
147 
148  bool canModifyFile(StringRef Path) {
149  if (WhiteListFilenames.empty())
150  return true;
151  return WhiteListFilenames.find(llvm::sys::path::filename(Path))
152  != WhiteListFilenames.end();
153  }
154  bool canModifyFile(const FileEntry *FE) {
155  if (!FE)
156  return false;
157  return canModifyFile(FE->getName());
158  }
159  bool canModifyFile(FileID FID) {
160  if (FID.isInvalid())
161  return false;
162  return canModifyFile(PP.getSourceManager().getFileEntryForID(FID));
163  }
164 
165  bool canModify(const Decl *D) {
166  if (!D)
167  return false;
168  if (const ObjCCategoryImplDecl *CatImpl = dyn_cast<ObjCCategoryImplDecl>(D))
169  return canModify(CatImpl->getCategoryDecl());
170  if (const ObjCImplementationDecl *Impl = dyn_cast<ObjCImplementationDecl>(D))
171  return canModify(Impl->getClassInterface());
172  if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D))
173  return canModify(cast<Decl>(MD->getDeclContext()));
174 
175  FileID FID = PP.getSourceManager().getFileID(D->getLocation());
176  return canModifyFile(FID);
177  }
178 };
179 
180 }
181 
183  StringRef migrateDir,
184  unsigned migrateAction)
185  : WrapperFrontendAction(WrappedAction), MigrateDir(migrateDir),
186  ObjCMigAction(migrateAction),
187  CompInst(nullptr) {
188  if (MigrateDir.empty())
189  MigrateDir = "."; // user current directory if none is given.
190 }
191 
192 std::unique_ptr<ASTConsumer>
195  PPRec = new PPConditionalDirectiveRecord(CompInst->getSourceManager());
196  CI.getPreprocessor().addPPCallbacks(std::unique_ptr<PPCallbacks>(PPRec));
197  std::vector<std::unique_ptr<ASTConsumer>> Consumers;
198  Consumers.push_back(WrapperFrontendAction::CreateASTConsumer(CI, InFile));
199  Consumers.push_back(llvm::make_unique<ObjCMigrateASTConsumer>(
200  MigrateDir, ObjCMigAction, Remapper, CompInst->getFileManager(), PPRec,
201  CompInst->getPreprocessor(), false, None));
202  return llvm::make_unique<MultiplexConsumer>(std::move(Consumers));
203 }
204 
206  Remapper.initFromDisk(MigrateDir, CI.getDiagnostics(),
207  /*ignoreIfFilesChanges=*/true);
208  CompInst = &CI;
210  return true;
211 }
212 
213 namespace {
214  // FIXME. This duplicates one in RewriteObjCFoundationAPI.cpp
215  bool subscriptOperatorNeedsParens(const Expr *FullExpr) {
216  const Expr* Expr = FullExpr->IgnoreImpCasts();
217  if (isa<ArraySubscriptExpr>(Expr) ||
218  isa<CallExpr>(Expr) ||
219  isa<DeclRefExpr>(Expr) ||
220  isa<CXXNamedCastExpr>(Expr) ||
221  isa<CXXConstructExpr>(Expr) ||
222  isa<CXXThisExpr>(Expr) ||
223  isa<CXXTypeidExpr>(Expr) ||
224  isa<CXXUnresolvedConstructExpr>(Expr) ||
225  isa<ObjCMessageExpr>(Expr) ||
226  isa<ObjCPropertyRefExpr>(Expr) ||
227  isa<ObjCProtocolExpr>(Expr) ||
228  isa<MemberExpr>(Expr) ||
229  isa<ObjCIvarRefExpr>(Expr) ||
230  isa<ParenExpr>(FullExpr) ||
231  isa<ParenListExpr>(Expr) ||
232  isa<SizeOfPackExpr>(Expr))
233  return false;
234 
235  return true;
236  }
237 
238  /// \brief - Rewrite message expression for Objective-C setter and getters into
239  /// property-dot syntax.
240  bool rewriteToPropertyDotSyntax(const ObjCMessageExpr *Msg,
241  Preprocessor &PP,
242  const NSAPI &NS, edit::Commit &commit,
243  const ParentMap *PMap) {
244  if (!Msg || Msg->isImplicit() ||
247  return false;
248  if (const Expr *Receiver = Msg->getInstanceReceiver())
249  if (Receiver->getType()->isObjCBuiltinType())
250  return false;
251 
252  const ObjCMethodDecl *Method = Msg->getMethodDecl();
253  if (!Method)
254  return false;
255  if (!Method->isPropertyAccessor())
256  return false;
257 
258  const ObjCPropertyDecl *Prop = Method->findPropertyDecl();
259  if (!Prop)
260  return false;
261 
262  SourceRange MsgRange = Msg->getSourceRange();
263  bool ReceiverIsSuper =
265  // for 'super' receiver is nullptr.
266  const Expr *receiver = Msg->getInstanceReceiver();
267  bool NeedsParen =
268  ReceiverIsSuper ? false : subscriptOperatorNeedsParens(receiver);
269  bool IsGetter = (Msg->getNumArgs() == 0);
270  if (IsGetter) {
271  // Find space location range between receiver expression and getter method.
272  SourceLocation BegLoc =
273  ReceiverIsSuper ? Msg->getSuperLoc() : receiver->getLocEnd();
274  BegLoc = PP.getLocForEndOfToken(BegLoc);
275  SourceLocation EndLoc = Msg->getSelectorLoc(0);
276  SourceRange SpaceRange(BegLoc, EndLoc);
277  std::string PropertyDotString;
278  // rewrite getter method expression into: receiver.property or
279  // (receiver).property
280  if (NeedsParen) {
281  commit.insertBefore(receiver->getLocStart(), "(");
282  PropertyDotString = ").";
283  }
284  else
285  PropertyDotString = ".";
286  PropertyDotString += Prop->getName();
287  commit.replace(SpaceRange, PropertyDotString);
288 
289  // remove '[' ']'
290  commit.replace(SourceRange(MsgRange.getBegin(), MsgRange.getBegin()), "");
291  commit.replace(SourceRange(MsgRange.getEnd(), MsgRange.getEnd()), "");
292  } else {
293  if (NeedsParen)
294  commit.insertWrap("(", receiver->getSourceRange(), ")");
295  std::string PropertyDotString = ".";
296  PropertyDotString += Prop->getName();
297  PropertyDotString += " =";
298  const Expr*const* Args = Msg->getArgs();
299  const Expr *RHS = Args[0];
300  if (!RHS)
301  return false;
302  SourceLocation BegLoc =
303  ReceiverIsSuper ? Msg->getSuperLoc() : receiver->getLocEnd();
304  BegLoc = PP.getLocForEndOfToken(BegLoc);
305  SourceLocation EndLoc = RHS->getLocStart();
306  EndLoc = EndLoc.getLocWithOffset(-1);
307  const char *colon = PP.getSourceManager().getCharacterData(EndLoc);
308  // Add a space after '=' if there is no space between RHS and '='
309  if (colon && colon[0] == ':')
310  PropertyDotString += " ";
311  SourceRange Range(BegLoc, EndLoc);
312  commit.replace(Range, PropertyDotString);
313  // remove '[' ']'
314  commit.replace(SourceRange(MsgRange.getBegin(), MsgRange.getBegin()), "");
315  commit.replace(SourceRange(MsgRange.getEnd(), MsgRange.getEnd()), "");
316  }
317  return true;
318  }
319 
320 
321 class ObjCMigrator : public RecursiveASTVisitor<ObjCMigrator> {
322  ObjCMigrateASTConsumer &Consumer;
323  ParentMap &PMap;
324 
325 public:
326  ObjCMigrator(ObjCMigrateASTConsumer &consumer, ParentMap &PMap)
327  : Consumer(consumer), PMap(PMap) { }
328 
329  bool shouldVisitTemplateInstantiations() const { return false; }
330  bool shouldWalkTypesOfTypeLocs() const { return false; }
331 
332  bool VisitObjCMessageExpr(ObjCMessageExpr *E) {
333  if (Consumer.ASTMigrateActions & FrontendOptions::ObjCMT_Literals) {
334  edit::Commit commit(*Consumer.Editor);
335  edit::rewriteToObjCLiteralSyntax(E, *Consumer.NSAPIObj, commit, &PMap);
336  Consumer.Editor->commit(commit);
337  }
338 
339  if (Consumer.ASTMigrateActions & FrontendOptions::ObjCMT_Subscripting) {
340  edit::Commit commit(*Consumer.Editor);
341  edit::rewriteToObjCSubscriptSyntax(E, *Consumer.NSAPIObj, commit);
342  Consumer.Editor->commit(commit);
343  }
344 
345  if (Consumer.ASTMigrateActions & FrontendOptions::ObjCMT_PropertyDotSyntax) {
346  edit::Commit commit(*Consumer.Editor);
347  rewriteToPropertyDotSyntax(E, Consumer.PP, *Consumer.NSAPIObj,
348  commit, &PMap);
349  Consumer.Editor->commit(commit);
350  }
351 
352  return true;
353  }
354 
355  bool TraverseObjCMessageExpr(ObjCMessageExpr *E) {
356  // Do depth first; we want to rewrite the subexpressions first so that if
357  // we have to move expressions we will move them already rewritten.
358  for (Stmt *SubStmt : E->children())
359  if (!TraverseStmt(SubStmt))
360  return false;
361 
362  return WalkUpFromObjCMessageExpr(E);
363  }
364 };
365 
366 class BodyMigrator : public RecursiveASTVisitor<BodyMigrator> {
367  ObjCMigrateASTConsumer &Consumer;
368  std::unique_ptr<ParentMap> PMap;
369 
370 public:
371  BodyMigrator(ObjCMigrateASTConsumer &consumer) : Consumer(consumer) { }
372 
373  bool shouldVisitTemplateInstantiations() const { return false; }
374  bool shouldWalkTypesOfTypeLocs() const { return false; }
375 
376  bool TraverseStmt(Stmt *S) {
377  PMap.reset(new ParentMap(S));
378  ObjCMigrator(Consumer, *PMap).TraverseStmt(S);
379  return true;
380  }
381 };
382 }
383 
384 void ObjCMigrateASTConsumer::migrateDecl(Decl *D) {
385  if (!D)
386  return;
387  if (isa<ObjCMethodDecl>(D))
388  return; // Wait for the ObjC container declaration.
389 
390  BodyMigrator(*this).TraverseDecl(D);
391 }
392 
393 static void append_attr(std::string &PropertyString, const char *attr,
394  bool &LParenAdded) {
395  if (!LParenAdded) {
396  PropertyString += "(";
397  LParenAdded = true;
398  }
399  else
400  PropertyString += ", ";
401  PropertyString += attr;
402 }
403 
404 static
405 void MigrateBlockOrFunctionPointerTypeVariable(std::string & PropertyString,
406  const std::string& TypeString,
407  const char *name) {
408  const char *argPtr = TypeString.c_str();
409  int paren = 0;
410  while (*argPtr) {
411  switch (*argPtr) {
412  case '(':
413  PropertyString += *argPtr;
414  paren++;
415  break;
416  case ')':
417  PropertyString += *argPtr;
418  paren--;
419  break;
420  case '^':
421  case '*':
422  PropertyString += (*argPtr);
423  if (paren == 1) {
424  PropertyString += name;
425  name = "";
426  }
427  break;
428  default:
429  PropertyString += *argPtr;
430  break;
431  }
432  argPtr++;
433  }
434 }
435 
436 static const char *PropertyMemoryAttribute(ASTContext &Context, QualType ArgType) {
437  Qualifiers::ObjCLifetime propertyLifetime = ArgType.getObjCLifetime();
438  bool RetainableObject = ArgType->isObjCRetainableType();
439  if (RetainableObject &&
440  (propertyLifetime == Qualifiers::OCL_Strong
441  || propertyLifetime == Qualifiers::OCL_None)) {
442  if (const ObjCObjectPointerType *ObjPtrTy =
443  ArgType->getAs<ObjCObjectPointerType>()) {
444  ObjCInterfaceDecl *IDecl = ObjPtrTy->getObjectType()->getInterface();
445  if (IDecl &&
446  IDecl->lookupNestedProtocol(&Context.Idents.get("NSCopying")))
447  return "copy";
448  else
449  return "strong";
450  }
451  else if (ArgType->isBlockPointerType())
452  return "copy";
453  } else if (propertyLifetime == Qualifiers::OCL_Weak)
454  // TODO. More precise determination of 'weak' attribute requires
455  // looking into setter's implementation for backing weak ivar.
456  return "weak";
457  else if (RetainableObject)
458  return ArgType->isBlockPointerType() ? "copy" : "strong";
459  return nullptr;
460 }
461 
462 static void rewriteToObjCProperty(const ObjCMethodDecl *Getter,
463  const ObjCMethodDecl *Setter,
464  const NSAPI &NS, edit::Commit &commit,
465  unsigned LengthOfPrefix,
466  bool Atomic, bool UseNsIosOnlyMacro,
467  bool AvailabilityArgsMatch) {
468  ASTContext &Context = NS.getASTContext();
469  bool LParenAdded = false;
470  std::string PropertyString = "@property ";
471  if (UseNsIosOnlyMacro && NS.isMacroDefined("NS_NONATOMIC_IOSONLY")) {
472  PropertyString += "(NS_NONATOMIC_IOSONLY";
473  LParenAdded = true;
474  } else if (!Atomic) {
475  PropertyString += "(nonatomic";
476  LParenAdded = true;
477  }
478 
479  std::string PropertyNameString = Getter->getNameAsString();
480  StringRef PropertyName(PropertyNameString);
481  if (LengthOfPrefix > 0) {
482  if (!LParenAdded) {
483  PropertyString += "(getter=";
484  LParenAdded = true;
485  }
486  else
487  PropertyString += ", getter=";
488  PropertyString += PropertyNameString;
489  }
490  // Property with no setter may be suggested as a 'readonly' property.
491  if (!Setter)
492  append_attr(PropertyString, "readonly", LParenAdded);
493 
494 
495  // Short circuit 'delegate' properties that contain the name "delegate" or
496  // "dataSource", or have exact name "target" to have 'assign' attribute.
497  if (PropertyName.equals("target") ||
498  (PropertyName.find("delegate") != StringRef::npos) ||
499  (PropertyName.find("dataSource") != StringRef::npos)) {
500  QualType QT = Getter->getReturnType();
501  if (!QT->isRealType())
502  append_attr(PropertyString, "assign", LParenAdded);
503  } else if (!Setter) {
504  QualType ResType = Context.getCanonicalType(Getter->getReturnType());
505  if (const char *MemoryManagementAttr = PropertyMemoryAttribute(Context, ResType))
506  append_attr(PropertyString, MemoryManagementAttr, LParenAdded);
507  } else {
508  const ParmVarDecl *argDecl = *Setter->param_begin();
509  QualType ArgType = Context.getCanonicalType(argDecl->getType());
510  if (const char *MemoryManagementAttr = PropertyMemoryAttribute(Context, ArgType))
511  append_attr(PropertyString, MemoryManagementAttr, LParenAdded);
512  }
513  if (LParenAdded)
514  PropertyString += ')';
515  QualType RT = Getter->getReturnType();
516  if (!isa<TypedefType>(RT)) {
517  // strip off any ARC lifetime qualifier.
518  QualType CanResultTy = Context.getCanonicalType(RT);
519  if (CanResultTy.getQualifiers().hasObjCLifetime()) {
520  Qualifiers Qs = CanResultTy.getQualifiers();
521  Qs.removeObjCLifetime();
522  RT = Context.getQualifiedType(CanResultTy.getUnqualifiedType(), Qs);
523  }
524  }
525  PropertyString += " ";
526  PrintingPolicy SubPolicy(Context.getPrintingPolicy());
527  SubPolicy.SuppressStrongLifetime = true;
528  SubPolicy.SuppressLifetimeQualifiers = true;
529  std::string TypeString = RT.getAsString(SubPolicy);
530  if (LengthOfPrefix > 0) {
531  // property name must strip off "is" and lower case the first character
532  // after that; e.g. isContinuous will become continuous.
533  StringRef PropertyNameStringRef(PropertyNameString);
534  PropertyNameStringRef = PropertyNameStringRef.drop_front(LengthOfPrefix);
535  PropertyNameString = PropertyNameStringRef;
536  bool NoLowering = (isUppercase(PropertyNameString[0]) &&
537  PropertyNameString.size() > 1 &&
538  isUppercase(PropertyNameString[1]));
539  if (!NoLowering)
540  PropertyNameString[0] = toLowercase(PropertyNameString[0]);
541  }
542  if (RT->isBlockPointerType() || RT->isFunctionPointerType())
544  TypeString,
545  PropertyNameString.c_str());
546  else {
547  char LastChar = TypeString[TypeString.size()-1];
548  PropertyString += TypeString;
549  if (LastChar != '*')
550  PropertyString += ' ';
551  PropertyString += PropertyNameString;
552  }
553  SourceLocation StartGetterSelectorLoc = Getter->getSelectorStartLoc();
554  Selector GetterSelector = Getter->getSelector();
555 
556  SourceLocation EndGetterSelectorLoc =
557  StartGetterSelectorLoc.getLocWithOffset(GetterSelector.getNameForSlot(0).size());
559  EndGetterSelectorLoc),
560  PropertyString);
561  if (Setter && AvailabilityArgsMatch) {
562  SourceLocation EndLoc = Setter->getDeclaratorEndLoc();
563  // Get location past ';'
564  EndLoc = EndLoc.getLocWithOffset(1);
565  SourceLocation BeginOfSetterDclLoc = Setter->getLocStart();
566  // FIXME. This assumes that setter decl; is immediately preceded by eoln.
567  // It is trying to remove the setter method decl. line entirely.
568  BeginOfSetterDclLoc = BeginOfSetterDclLoc.getLocWithOffset(-1);
569  commit.remove(SourceRange(BeginOfSetterDclLoc, EndLoc));
570  }
571 }
572 
574  if (ObjCCategoryDecl *CatDecl = dyn_cast<ObjCCategoryDecl>(D)) {
575  StringRef Name = CatDecl->getName();
576  return Name.endswith("Deprecated");
577  }
578  return false;
579 }
580 
581 void ObjCMigrateASTConsumer::migrateObjCContainerDecl(ASTContext &Ctx,
582  ObjCContainerDecl *D) {
584  return;
585 
586  for (auto *Method : D->methods()) {
587  if (Method->isDeprecated())
588  continue;
589  bool PropertyInferred = migrateProperty(Ctx, D, Method);
590  // If a property is inferred, do not attempt to attach NS_RETURNS_INNER_POINTER to
591  // the getter method as it ends up on the property itself which we don't want
592  // to do unless -objcmt-returns-innerpointer-property option is on.
593  if (!PropertyInferred ||
595  if (ASTMigrateActions & FrontendOptions::ObjCMT_Annotation)
596  migrateNsReturnsInnerPointer(Ctx, Method);
597  }
598  if (!(ASTMigrateActions & FrontendOptions::ObjCMT_ReturnsInnerPointerProperty))
599  return;
600 
601  for (auto *Prop : D->properties()) {
602  if ((ASTMigrateActions & FrontendOptions::ObjCMT_Annotation) &&
603  !Prop->isDeprecated())
604  migratePropertyNsReturnsInnerPointer(Ctx, Prop);
605  }
606 }
607 
608 static bool
610  const ObjCImplementationDecl *ImpDecl,
611  const ObjCInterfaceDecl *IDecl,
612  ObjCProtocolDecl *Protocol) {
613  // In auto-synthesis, protocol properties are not synthesized. So,
614  // a conforming protocol must have its required properties declared
615  // in class interface.
616  bool HasAtleastOneRequiredProperty = false;
617  if (const ObjCProtocolDecl *PDecl = Protocol->getDefinition())
618  for (const auto *Property : PDecl->properties()) {
619  if (Property->getPropertyImplementation() == ObjCPropertyDecl::Optional)
620  continue;
621  HasAtleastOneRequiredProperty = true;
622  DeclContext::lookup_result R = IDecl->lookup(Property->getDeclName());
623  if (R.size() == 0) {
624  // Relax the rule and look into class's implementation for a synthesize
625  // or dynamic declaration. Class is implementing a property coming from
626  // another protocol. This still makes the target protocol as conforming.
627  if (!ImpDecl->FindPropertyImplDecl(
628  Property->getDeclName().getAsIdentifierInfo()))
629  return false;
630  }
631  else if (ObjCPropertyDecl *ClassProperty = dyn_cast<ObjCPropertyDecl>(R[0])) {
632  if ((ClassProperty->getPropertyAttributes()
633  != Property->getPropertyAttributes()) ||
634  !Ctx.hasSameType(ClassProperty->getType(), Property->getType()))
635  return false;
636  }
637  else
638  return false;
639  }
640 
641  // At this point, all required properties in this protocol conform to those
642  // declared in the class.
643  // Check that class implements the required methods of the protocol too.
644  bool HasAtleastOneRequiredMethod = false;
645  if (const ObjCProtocolDecl *PDecl = Protocol->getDefinition()) {
646  if (PDecl->meth_begin() == PDecl->meth_end())
647  return HasAtleastOneRequiredProperty;
648  for (const auto *MD : PDecl->methods()) {
649  if (MD->isImplicit())
650  continue;
651  if (MD->getImplementationControl() == ObjCMethodDecl::Optional)
652  continue;
653  DeclContext::lookup_result R = ImpDecl->lookup(MD->getDeclName());
654  if (R.size() == 0)
655  return false;
656  bool match = false;
657  HasAtleastOneRequiredMethod = true;
658  for (unsigned I = 0, N = R.size(); I != N; ++I)
659  if (ObjCMethodDecl *ImpMD = dyn_cast<ObjCMethodDecl>(R[0]))
660  if (Ctx.ObjCMethodsAreEqual(MD, ImpMD)) {
661  match = true;
662  break;
663  }
664  if (!match)
665  return false;
666  }
667  }
668  if (HasAtleastOneRequiredProperty || HasAtleastOneRequiredMethod)
669  return true;
670  return false;
671 }
672 
674  llvm::SmallVectorImpl<ObjCProtocolDecl*> &ConformingProtocols,
675  const NSAPI &NS, edit::Commit &commit) {
676  const ObjCList<ObjCProtocolDecl> &Protocols = IDecl->getReferencedProtocols();
677  std::string ClassString;
678  SourceLocation EndLoc =
679  IDecl->getSuperClass() ? IDecl->getSuperClassLoc() : IDecl->getLocation();
680 
681  if (Protocols.empty()) {
682  ClassString = '<';
683  for (unsigned i = 0, e = ConformingProtocols.size(); i != e; i++) {
684  ClassString += ConformingProtocols[i]->getNameAsString();
685  if (i != (e-1))
686  ClassString += ", ";
687  }
688  ClassString += "> ";
689  }
690  else {
691  ClassString = ", ";
692  for (unsigned i = 0, e = ConformingProtocols.size(); i != e; i++) {
693  ClassString += ConformingProtocols[i]->getNameAsString();
694  if (i != (e-1))
695  ClassString += ", ";
696  }
698  EndLoc = *PL;
699  }
700 
701  commit.insertAfterToken(EndLoc, ClassString);
702  return true;
703 }
704 
705 static StringRef GetUnsignedName(StringRef NSIntegerName) {
706  StringRef UnsignedName = llvm::StringSwitch<StringRef>(NSIntegerName)
707  .Case("int8_t", "uint8_t")
708  .Case("int16_t", "uint16_t")
709  .Case("int32_t", "uint32_t")
710  .Case("NSInteger", "NSUInteger")
711  .Case("int64_t", "uint64_t")
712  .Default(NSIntegerName);
713  return UnsignedName;
714 }
715 
716 static bool rewriteToNSEnumDecl(const EnumDecl *EnumDcl,
717  const TypedefDecl *TypedefDcl,
718  const NSAPI &NS, edit::Commit &commit,
719  StringRef NSIntegerName,
720  bool NSOptions) {
721  std::string ClassString;
722  if (NSOptions) {
723  ClassString = "typedef NS_OPTIONS(";
724  ClassString += GetUnsignedName(NSIntegerName);
725  }
726  else {
727  ClassString = "typedef NS_ENUM(";
728  ClassString += NSIntegerName;
729  }
730  ClassString += ", ";
731 
732  ClassString += TypedefDcl->getIdentifier()->getName();
733  ClassString += ')';
734  SourceRange R(EnumDcl->getLocStart(), EnumDcl->getLocStart());
735  commit.replace(R, ClassString);
736  SourceLocation EndOfEnumDclLoc = EnumDcl->getLocEnd();
737  EndOfEnumDclLoc = trans::findSemiAfterLocation(EndOfEnumDclLoc,
738  NS.getASTContext(), /*IsDecl*/true);
739  if (!EndOfEnumDclLoc.isInvalid()) {
740  SourceRange EnumDclRange(EnumDcl->getLocStart(), EndOfEnumDclLoc);
741  commit.insertFromRange(TypedefDcl->getLocStart(), EnumDclRange);
742  }
743  else
744  return false;
745 
746  SourceLocation EndTypedefDclLoc = TypedefDcl->getLocEnd();
747  EndTypedefDclLoc = trans::findSemiAfterLocation(EndTypedefDclLoc,
748  NS.getASTContext(), /*IsDecl*/true);
749  if (!EndTypedefDclLoc.isInvalid()) {
750  SourceRange TDRange(TypedefDcl->getLocStart(), EndTypedefDclLoc);
751  commit.remove(TDRange);
752  }
753  else
754  return false;
755 
756  EndOfEnumDclLoc = trans::findLocationAfterSemi(EnumDcl->getLocEnd(), NS.getASTContext(),
757  /*IsDecl*/true);
758  if (!EndOfEnumDclLoc.isInvalid()) {
759  SourceLocation BeginOfEnumDclLoc = EnumDcl->getLocStart();
760  // FIXME. This assumes that enum decl; is immediately preceded by eoln.
761  // It is trying to remove the enum decl. lines entirely.
762  BeginOfEnumDclLoc = BeginOfEnumDclLoc.getLocWithOffset(-1);
763  commit.remove(SourceRange(BeginOfEnumDclLoc, EndOfEnumDclLoc));
764  return true;
765  }
766  return false;
767 }
768 
770  const EnumDecl *EnumDcl,
771  const TypedefDecl *TypedefDcl,
772  const NSAPI &NS, edit::Commit &commit,
773  bool IsNSIntegerType) {
774  QualType DesignatedEnumType = EnumDcl->getIntegerType();
775  assert(!DesignatedEnumType.isNull()
776  && "rewriteToNSMacroDecl - underlying enum type is null");
777 
778  PrintingPolicy Policy(Ctx.getPrintingPolicy());
779  std::string TypeString = DesignatedEnumType.getAsString(Policy);
780  std::string ClassString = IsNSIntegerType ? "NS_ENUM(" : "NS_OPTIONS(";
781  ClassString += TypeString;
782  ClassString += ", ";
783 
784  ClassString += TypedefDcl->getIdentifier()->getName();
785  ClassString += ')';
786  SourceLocation EndLoc;
787  if (EnumDcl->getIntegerTypeSourceInfo()) {
788  TypeSourceInfo *TSourceInfo = EnumDcl->getIntegerTypeSourceInfo();
789  TypeLoc TLoc = TSourceInfo->getTypeLoc();
790  EndLoc = TLoc.getLocEnd();
791  const char *lbrace = Ctx.getSourceManager().getCharacterData(EndLoc);
792  unsigned count = 0;
793  if (lbrace)
794  while (lbrace[count] != '{')
795  ++count;
796  if (count > 0)
797  EndLoc = EndLoc.getLocWithOffset(count-1);
798  }
799  else
800  EndLoc = EnumDcl->getLocStart();
801  SourceRange R(EnumDcl->getLocStart(), EndLoc);
802  commit.replace(R, ClassString);
803  // This is to remove spaces between '}' and typedef name.
804  SourceLocation StartTypedefLoc = EnumDcl->getLocEnd();
805  StartTypedefLoc = StartTypedefLoc.getLocWithOffset(+1);
806  SourceLocation EndTypedefLoc = TypedefDcl->getLocEnd();
807 
808  commit.remove(SourceRange(StartTypedefLoc, EndTypedefLoc));
809 }
810 
812  const EnumDecl *EnumDcl) {
813  bool PowerOfTwo = true;
814  bool AllHexdecimalEnumerator = true;
815  uint64_t MaxPowerOfTwoVal = 0;
816  for (auto Enumerator : EnumDcl->enumerators()) {
817  const Expr *InitExpr = Enumerator->getInitExpr();
818  if (!InitExpr) {
819  PowerOfTwo = false;
820  AllHexdecimalEnumerator = false;
821  continue;
822  }
823  InitExpr = InitExpr->IgnoreParenCasts();
824  if (const BinaryOperator *BO = dyn_cast<BinaryOperator>(InitExpr))
825  if (BO->isShiftOp() || BO->isBitwiseOp())
826  return true;
827 
828  uint64_t EnumVal = Enumerator->getInitVal().getZExtValue();
829  if (PowerOfTwo && EnumVal) {
830  if (!llvm::isPowerOf2_64(EnumVal))
831  PowerOfTwo = false;
832  else if (EnumVal > MaxPowerOfTwoVal)
833  MaxPowerOfTwoVal = EnumVal;
834  }
835  if (AllHexdecimalEnumerator && EnumVal) {
836  bool FoundHexdecimalEnumerator = false;
837  SourceLocation EndLoc = Enumerator->getLocEnd();
838  Token Tok;
839  if (!PP.getRawToken(EndLoc, Tok, /*IgnoreWhiteSpace=*/true))
840  if (Tok.isLiteral() && Tok.getLength() > 2) {
841  if (const char *StringLit = Tok.getLiteralData())
842  FoundHexdecimalEnumerator =
843  (StringLit[0] == '0' && (toLowercase(StringLit[1]) == 'x'));
844  }
845  if (!FoundHexdecimalEnumerator)
846  AllHexdecimalEnumerator = false;
847  }
848  }
849  return AllHexdecimalEnumerator || (PowerOfTwo && (MaxPowerOfTwoVal > 2));
850 }
851 
852 void ObjCMigrateASTConsumer::migrateProtocolConformance(ASTContext &Ctx,
853  const ObjCImplementationDecl *ImpDecl) {
854  const ObjCInterfaceDecl *IDecl = ImpDecl->getClassInterface();
855  if (!IDecl || ObjCProtocolDecls.empty() || IDecl->isDeprecated())
856  return;
857  // Find all implicit conforming protocols for this class
858  // and make them explicit.
859  llvm::SmallPtrSet<ObjCProtocolDecl *, 8> ExplicitProtocols;
860  Ctx.CollectInheritedProtocols(IDecl, ExplicitProtocols);
861  llvm::SmallVector<ObjCProtocolDecl *, 8> PotentialImplicitProtocols;
862 
863  for (ObjCProtocolDecl *ProtDecl : ObjCProtocolDecls)
864  if (!ExplicitProtocols.count(ProtDecl))
865  PotentialImplicitProtocols.push_back(ProtDecl);
866 
867  if (PotentialImplicitProtocols.empty())
868  return;
869 
870  // go through list of non-optional methods and properties in each protocol
871  // in the PotentialImplicitProtocols list. If class implements every one of the
872  // methods and properties, then this class conforms to this protocol.
873  llvm::SmallVector<ObjCProtocolDecl*, 8> ConformingProtocols;
874  for (unsigned i = 0, e = PotentialImplicitProtocols.size(); i != e; i++)
875  if (ClassImplementsAllMethodsAndProperties(Ctx, ImpDecl, IDecl,
876  PotentialImplicitProtocols[i]))
877  ConformingProtocols.push_back(PotentialImplicitProtocols[i]);
878 
879  if (ConformingProtocols.empty())
880  return;
881 
882  // Further reduce number of conforming protocols. If protocol P1 is in the list
883  // protocol P2 (P2<P1>), No need to include P1.
884  llvm::SmallVector<ObjCProtocolDecl*, 8> MinimalConformingProtocols;
885  for (unsigned i = 0, e = ConformingProtocols.size(); i != e; i++) {
886  bool DropIt = false;
887  ObjCProtocolDecl *TargetPDecl = ConformingProtocols[i];
888  for (unsigned i1 = 0, e1 = ConformingProtocols.size(); i1 != e1; i1++) {
889  ObjCProtocolDecl *PDecl = ConformingProtocols[i1];
890  if (PDecl == TargetPDecl)
891  continue;
892  if (PDecl->lookupProtocolNamed(
893  TargetPDecl->getDeclName().getAsIdentifierInfo())) {
894  DropIt = true;
895  break;
896  }
897  }
898  if (!DropIt)
899  MinimalConformingProtocols.push_back(TargetPDecl);
900  }
901  if (MinimalConformingProtocols.empty())
902  return;
903  edit::Commit commit(*Editor);
904  rewriteToObjCInterfaceDecl(IDecl, MinimalConformingProtocols,
905  *NSAPIObj, commit);
906  Editor->commit(commit);
907 }
908 
909 void ObjCMigrateASTConsumer::CacheObjCNSIntegerTypedefed(
910  const TypedefDecl *TypedefDcl) {
911 
912  QualType qt = TypedefDcl->getTypeSourceInfo()->getType();
913  if (NSAPIObj->isObjCNSIntegerType(qt))
914  NSIntegerTypedefed = TypedefDcl;
915  else if (NSAPIObj->isObjCNSUIntegerType(qt))
916  NSUIntegerTypedefed = TypedefDcl;
917 }
918 
919 bool ObjCMigrateASTConsumer::migrateNSEnumDecl(ASTContext &Ctx,
920  const EnumDecl *EnumDcl,
921  const TypedefDecl *TypedefDcl) {
922  if (!EnumDcl->isCompleteDefinition() || EnumDcl->getIdentifier() ||
923  EnumDcl->isDeprecated())
924  return false;
925  if (!TypedefDcl) {
926  if (NSIntegerTypedefed) {
927  TypedefDcl = NSIntegerTypedefed;
928  NSIntegerTypedefed = nullptr;
929  }
930  else if (NSUIntegerTypedefed) {
931  TypedefDcl = NSUIntegerTypedefed;
932  NSUIntegerTypedefed = nullptr;
933  }
934  else
935  return false;
936  FileID FileIdOfTypedefDcl =
937  PP.getSourceManager().getFileID(TypedefDcl->getLocation());
938  FileID FileIdOfEnumDcl =
939  PP.getSourceManager().getFileID(EnumDcl->getLocation());
940  if (FileIdOfTypedefDcl != FileIdOfEnumDcl)
941  return false;
942  }
943  if (TypedefDcl->isDeprecated())
944  return false;
945 
946  QualType qt = TypedefDcl->getTypeSourceInfo()->getType();
947  StringRef NSIntegerName = NSAPIObj->GetNSIntegralKind(qt);
948 
949  if (NSIntegerName.empty()) {
950  // Also check for typedef enum {...} TD;
951  if (const EnumType *EnumTy = qt->getAs<EnumType>()) {
952  if (EnumTy->getDecl() == EnumDcl) {
953  bool NSOptions = UseNSOptionsMacro(PP, Ctx, EnumDcl);
954  if (!InsertFoundation(Ctx, TypedefDcl->getLocStart()))
955  return false;
956  edit::Commit commit(*Editor);
957  rewriteToNSMacroDecl(Ctx, EnumDcl, TypedefDcl, *NSAPIObj, commit, !NSOptions);
958  Editor->commit(commit);
959  return true;
960  }
961  }
962  return false;
963  }
964 
965  // We may still use NS_OPTIONS based on what we find in the enumertor list.
966  bool NSOptions = UseNSOptionsMacro(PP, Ctx, EnumDcl);
967  if (!InsertFoundation(Ctx, TypedefDcl->getLocStart()))
968  return false;
969  edit::Commit commit(*Editor);
970  bool Res = rewriteToNSEnumDecl(EnumDcl, TypedefDcl, *NSAPIObj,
971  commit, NSIntegerName, NSOptions);
972  Editor->commit(commit);
973  return Res;
974 }
975 
977  const ObjCMigrateASTConsumer &ASTC,
978  ObjCMethodDecl *OM) {
979  if (OM->getReturnType() == Ctx.getObjCInstanceType())
980  return; // already has instancetype.
981 
982  SourceRange R;
983  std::string ClassString;
984  if (TypeSourceInfo *TSInfo = OM->getReturnTypeSourceInfo()) {
985  TypeLoc TL = TSInfo->getTypeLoc();
986  R = SourceRange(TL.getBeginLoc(), TL.getEndLoc());
987  ClassString = "instancetype";
988  }
989  else {
990  R = SourceRange(OM->getLocStart(), OM->getLocStart());
991  ClassString = OM->isInstanceMethod() ? '-' : '+';
992  ClassString += " (instancetype)";
993  }
994  edit::Commit commit(*ASTC.Editor);
995  commit.replace(R, ClassString);
996  ASTC.Editor->commit(commit);
997 }
998 
999 static void ReplaceWithClasstype(const ObjCMigrateASTConsumer &ASTC,
1000  ObjCMethodDecl *OM) {
1001  ObjCInterfaceDecl *IDecl = OM->getClassInterface();
1002  SourceRange R;
1003  std::string ClassString;
1004  if (TypeSourceInfo *TSInfo = OM->getReturnTypeSourceInfo()) {
1005  TypeLoc TL = TSInfo->getTypeLoc();
1006  R = SourceRange(TL.getBeginLoc(), TL.getEndLoc()); {
1007  ClassString = IDecl->getName();
1008  ClassString += "*";
1009  }
1010  }
1011  else {
1012  R = SourceRange(OM->getLocStart(), OM->getLocStart());
1013  ClassString = "+ (";
1014  ClassString += IDecl->getName(); ClassString += "*)";
1015  }
1016  edit::Commit commit(*ASTC.Editor);
1017  commit.replace(R, ClassString);
1018  ASTC.Editor->commit(commit);
1019 }
1020 
1021 void ObjCMigrateASTConsumer::migrateMethodInstanceType(ASTContext &Ctx,
1022  ObjCContainerDecl *CDecl,
1023  ObjCMethodDecl *OM) {
1024  ObjCInstanceTypeFamily OIT_Family =
1026 
1027  std::string ClassName;
1028  switch (OIT_Family) {
1029  case OIT_None:
1030  migrateFactoryMethod(Ctx, CDecl, OM);
1031  return;
1032  case OIT_Array:
1033  ClassName = "NSArray";
1034  break;
1035  case OIT_Dictionary:
1036  ClassName = "NSDictionary";
1037  break;
1038  case OIT_Singleton:
1039  migrateFactoryMethod(Ctx, CDecl, OM, OIT_Singleton);
1040  return;
1041  case OIT_Init:
1042  if (OM->getReturnType()->isObjCIdType())
1043  ReplaceWithInstancetype(Ctx, *this, OM);
1044  return;
1045  case OIT_ReturnsSelf:
1046  migrateFactoryMethod(Ctx, CDecl, OM, OIT_ReturnsSelf);
1047  return;
1048  }
1049  if (!OM->getReturnType()->isObjCIdType())
1050  return;
1051 
1052  ObjCInterfaceDecl *IDecl = dyn_cast<ObjCInterfaceDecl>(CDecl);
1053  if (!IDecl) {
1054  if (ObjCCategoryDecl *CatDecl = dyn_cast<ObjCCategoryDecl>(CDecl))
1055  IDecl = CatDecl->getClassInterface();
1056  else if (ObjCImplDecl *ImpDecl = dyn_cast<ObjCImplDecl>(CDecl))
1057  IDecl = ImpDecl->getClassInterface();
1058  }
1059  if (!IDecl ||
1060  !IDecl->lookupInheritedClass(&Ctx.Idents.get(ClassName))) {
1061  migrateFactoryMethod(Ctx, CDecl, OM);
1062  return;
1063  }
1064  ReplaceWithInstancetype(Ctx, *this, OM);
1065 }
1066 
1068  if (!T->isAnyPointerType())
1069  return false;
1070  if (T->isObjCObjectPointerType() || T->isObjCBuiltinType() ||
1073  return false;
1074  // Also, typedef-of-pointer-to-incomplete-struct is something that we assume
1075  // is not an innter pointer type.
1076  QualType OrigT = T;
1077  while (const TypedefType *TD = dyn_cast<TypedefType>(T.getTypePtr()))
1078  T = TD->getDecl()->getUnderlyingType();
1079  if (OrigT == T || !T->isPointerType())
1080  return true;
1081  const PointerType* PT = T->getAs<PointerType>();
1082  QualType UPointeeT = PT->getPointeeType().getUnqualifiedType();
1083  if (UPointeeT->isRecordType()) {
1084  const RecordType *RecordTy = UPointeeT->getAs<RecordType>();
1085  if (!RecordTy->getDecl()->isCompleteDefinition())
1086  return false;
1087  }
1088  return true;
1089 }
1090 
1091 /// \brief Check whether the two versions match.
1092 static bool versionsMatch(const VersionTuple &X, const VersionTuple &Y) {
1093  return (X == Y);
1094 }
1095 
1096 /// AvailabilityAttrsMatch - This routine checks that if comparing two
1097 /// availability attributes, all their components match. It returns
1098 /// true, if not dealing with availability or when all components of
1099 /// availability attributes match. This routine is only called when
1100 /// the attributes are of the same kind.
1101 static bool AvailabilityAttrsMatch(Attr *At1, Attr *At2) {
1102  const AvailabilityAttr *AA1 = dyn_cast<AvailabilityAttr>(At1);
1103  if (!AA1)
1104  return true;
1105  const AvailabilityAttr *AA2 = dyn_cast<AvailabilityAttr>(At2);
1106 
1107  VersionTuple Introduced1 = AA1->getIntroduced();
1108  VersionTuple Deprecated1 = AA1->getDeprecated();
1109  VersionTuple Obsoleted1 = AA1->getObsoleted();
1110  bool IsUnavailable1 = AA1->getUnavailable();
1111  VersionTuple Introduced2 = AA2->getIntroduced();
1112  VersionTuple Deprecated2 = AA2->getDeprecated();
1113  VersionTuple Obsoleted2 = AA2->getObsoleted();
1114  bool IsUnavailable2 = AA2->getUnavailable();
1115  return (versionsMatch(Introduced1, Introduced2) &&
1116  versionsMatch(Deprecated1, Deprecated2) &&
1117  versionsMatch(Obsoleted1, Obsoleted2) &&
1118  IsUnavailable1 == IsUnavailable2);
1119 
1120 }
1121 
1122 static bool MatchTwoAttributeLists(const AttrVec &Attrs1, const AttrVec &Attrs2,
1123  bool &AvailabilityArgsMatch) {
1124  // This list is very small, so this need not be optimized.
1125  for (unsigned i = 0, e = Attrs1.size(); i != e; i++) {
1126  bool match = false;
1127  for (unsigned j = 0, f = Attrs2.size(); j != f; j++) {
1128  // Matching attribute kind only. Except for Availabilty attributes,
1129  // we are not getting into details of the attributes. For all practical purposes
1130  // this is sufficient.
1131  if (Attrs1[i]->getKind() == Attrs2[j]->getKind()) {
1132  if (AvailabilityArgsMatch)
1133  AvailabilityArgsMatch = AvailabilityAttrsMatch(Attrs1[i], Attrs2[j]);
1134  match = true;
1135  break;
1136  }
1137  }
1138  if (!match)
1139  return false;
1140  }
1141  return true;
1142 }
1143 
1144 /// AttributesMatch - This routine checks list of attributes for two
1145 /// decls. It returns false, if there is a mismatch in kind of
1146 /// attributes seen in the decls. It returns true if the two decls
1147 /// have list of same kind of attributes. Furthermore, when there
1148 /// are availability attributes in the two decls, it sets the
1149 /// AvailabilityArgsMatch to false if availability attributes have
1150 /// different versions, etc.
1151 static bool AttributesMatch(const Decl *Decl1, const Decl *Decl2,
1152  bool &AvailabilityArgsMatch) {
1153  if (!Decl1->hasAttrs() || !Decl2->hasAttrs()) {
1154  AvailabilityArgsMatch = (Decl1->hasAttrs() == Decl2->hasAttrs());
1155  return true;
1156  }
1157  AvailabilityArgsMatch = true;
1158  const AttrVec &Attrs1 = Decl1->getAttrs();
1159  const AttrVec &Attrs2 = Decl2->getAttrs();
1160  bool match = MatchTwoAttributeLists(Attrs1, Attrs2, AvailabilityArgsMatch);
1161  if (match && (Attrs2.size() > Attrs1.size()))
1162  return MatchTwoAttributeLists(Attrs2, Attrs1, AvailabilityArgsMatch);
1163  return match;
1164 }
1165 
1167  const char *Name) {
1168  if (!isIdentifierHead(Name[0]))
1169  return false;
1170  std::string NameString = Name;
1171  NameString[0] = toLowercase(NameString[0]);
1172  IdentifierInfo *II = &Ctx.Idents.get(NameString);
1173  return II->getTokenID() == tok::identifier;
1174 }
1175 
1176 bool ObjCMigrateASTConsumer::migrateProperty(ASTContext &Ctx,
1177  ObjCContainerDecl *D,
1178  ObjCMethodDecl *Method) {
1179  if (Method->isPropertyAccessor() || !Method->isInstanceMethod() ||
1180  Method->param_size() != 0)
1181  return false;
1182  // Is this method candidate to be a getter?
1183  QualType GRT = Method->getReturnType();
1184  if (GRT->isVoidType())
1185  return false;
1186 
1187  Selector GetterSelector = Method->getSelector();
1188  ObjCInstanceTypeFamily OIT_Family =
1189  Selector::getInstTypeMethodFamily(GetterSelector);
1190 
1191  if (OIT_Family != OIT_None)
1192  return false;
1193 
1194  IdentifierInfo *getterName = GetterSelector.getIdentifierInfoForSlot(0);
1195  Selector SetterSelector =
1197  PP.getSelectorTable(),
1198  getterName);
1199  ObjCMethodDecl *SetterMethod = D->getInstanceMethod(SetterSelector);
1200  unsigned LengthOfPrefix = 0;
1201  if (!SetterMethod) {
1202  // try a different naming convention for getter: isXxxxx
1203  StringRef getterNameString = getterName->getName();
1204  bool IsPrefix = getterNameString.startswith("is");
1205  // Note that we don't want to change an isXXX method of retainable object
1206  // type to property (readonly or otherwise).
1207  if (IsPrefix && GRT->isObjCRetainableType())
1208  return false;
1209  if (IsPrefix || getterNameString.startswith("get")) {
1210  LengthOfPrefix = (IsPrefix ? 2 : 3);
1211  const char *CGetterName = getterNameString.data() + LengthOfPrefix;
1212  // Make sure that first character after "is" or "get" prefix can
1213  // start an identifier.
1214  if (!IsValidIdentifier(Ctx, CGetterName))
1215  return false;
1216  if (CGetterName[0] && isUppercase(CGetterName[0])) {
1217  getterName = &Ctx.Idents.get(CGetterName);
1218  SetterSelector =
1220  PP.getSelectorTable(),
1221  getterName);
1222  SetterMethod = D->getInstanceMethod(SetterSelector);
1223  }
1224  }
1225  }
1226 
1227  if (SetterMethod) {
1228  if ((ASTMigrateActions & FrontendOptions::ObjCMT_ReadwriteProperty) == 0)
1229  return false;
1230  bool AvailabilityArgsMatch;
1231  if (SetterMethod->isDeprecated() ||
1232  !AttributesMatch(Method, SetterMethod, AvailabilityArgsMatch))
1233  return false;
1234 
1235  // Is this a valid setter, matching the target getter?
1236  QualType SRT = SetterMethod->getReturnType();
1237  if (!SRT->isVoidType())
1238  return false;
1239  const ParmVarDecl *argDecl = *SetterMethod->param_begin();
1240  QualType ArgType = argDecl->getType();
1241  if (!Ctx.hasSameUnqualifiedType(ArgType, GRT))
1242  return false;
1243  edit::Commit commit(*Editor);
1244  rewriteToObjCProperty(Method, SetterMethod, *NSAPIObj, commit,
1245  LengthOfPrefix,
1246  (ASTMigrateActions &
1248  (ASTMigrateActions &
1250  AvailabilityArgsMatch);
1251  Editor->commit(commit);
1252  return true;
1253  }
1254  else if (ASTMigrateActions & FrontendOptions::ObjCMT_ReadonlyProperty) {
1255  // Try a non-void method with no argument (and no setter or property of same name
1256  // as a 'readonly' property.
1257  edit::Commit commit(*Editor);
1258  rewriteToObjCProperty(Method, nullptr /*SetterMethod*/, *NSAPIObj, commit,
1259  LengthOfPrefix,
1260  (ASTMigrateActions &
1261  FrontendOptions::ObjCMT_AtomicProperty) != 0,
1262  (ASTMigrateActions &
1264  /*AvailabilityArgsMatch*/false);
1265  Editor->commit(commit);
1266  return true;
1267  }
1268  return false;
1269 }
1270 
1271 void ObjCMigrateASTConsumer::migrateNsReturnsInnerPointer(ASTContext &Ctx,
1272  ObjCMethodDecl *OM) {
1273  if (OM->isImplicit() ||
1274  !OM->isInstanceMethod() ||
1275  OM->hasAttr<ObjCReturnsInnerPointerAttr>())
1276  return;
1277 
1278  QualType RT = OM->getReturnType();
1279  if (!TypeIsInnerPointer(RT) ||
1280  !NSAPIObj->isMacroDefined("NS_RETURNS_INNER_POINTER"))
1281  return;
1282 
1283  edit::Commit commit(*Editor);
1284  commit.insertBefore(OM->getLocEnd(), " NS_RETURNS_INNER_POINTER");
1285  Editor->commit(commit);
1286 }
1287 
1288 void ObjCMigrateASTConsumer::migratePropertyNsReturnsInnerPointer(ASTContext &Ctx,
1289  ObjCPropertyDecl *P) {
1290  QualType T = P->getType();
1291 
1292  if (!TypeIsInnerPointer(T) ||
1293  !NSAPIObj->isMacroDefined("NS_RETURNS_INNER_POINTER"))
1294  return;
1295  edit::Commit commit(*Editor);
1296  commit.insertBefore(P->getLocEnd(), " NS_RETURNS_INNER_POINTER ");
1297  Editor->commit(commit);
1298 }
1299 
1300 void ObjCMigrateASTConsumer::migrateAllMethodInstaceType(ASTContext &Ctx,
1301  ObjCContainerDecl *CDecl) {
1302  if (CDecl->isDeprecated() || IsCategoryNameWithDeprecatedSuffix(CDecl))
1303  return;
1304 
1305  // migrate methods which can have instancetype as their result type.
1306  for (auto *Method : CDecl->methods()) {
1307  if (Method->isDeprecated())
1308  continue;
1309  migrateMethodInstanceType(Ctx, CDecl, Method);
1310  }
1311 }
1312 
1313 void ObjCMigrateASTConsumer::migrateFactoryMethod(ASTContext &Ctx,
1314  ObjCContainerDecl *CDecl,
1315  ObjCMethodDecl *OM,
1316  ObjCInstanceTypeFamily OIT_Family) {
1317  if (OM->isInstanceMethod() ||
1318  OM->getReturnType() == Ctx.getObjCInstanceType() ||
1319  !OM->getReturnType()->isObjCIdType())
1320  return;
1321 
1322  // Candidate factory methods are + (id) NaMeXXX : ... which belong to a class
1323  // NSYYYNamE with matching names be at least 3 characters long.
1324  ObjCInterfaceDecl *IDecl = dyn_cast<ObjCInterfaceDecl>(CDecl);
1325  if (!IDecl) {
1326  if (ObjCCategoryDecl *CatDecl = dyn_cast<ObjCCategoryDecl>(CDecl))
1327  IDecl = CatDecl->getClassInterface();
1328  else if (ObjCImplDecl *ImpDecl = dyn_cast<ObjCImplDecl>(CDecl))
1329  IDecl = ImpDecl->getClassInterface();
1330  }
1331  if (!IDecl)
1332  return;
1333 
1334  std::string StringClassName = IDecl->getName();
1335  StringRef LoweredClassName(StringClassName);
1336  std::string StringLoweredClassName = LoweredClassName.lower();
1337  LoweredClassName = StringLoweredClassName;
1338 
1339  IdentifierInfo *MethodIdName = OM->getSelector().getIdentifierInfoForSlot(0);
1340  // Handle method with no name at its first selector slot; e.g. + (id):(int)x.
1341  if (!MethodIdName)
1342  return;
1343 
1344  std::string MethodName = MethodIdName->getName();
1345  if (OIT_Family == OIT_Singleton || OIT_Family == OIT_ReturnsSelf) {
1346  StringRef STRefMethodName(MethodName);
1347  size_t len = 0;
1348  if (STRefMethodName.startswith("standard"))
1349  len = strlen("standard");
1350  else if (STRefMethodName.startswith("shared"))
1351  len = strlen("shared");
1352  else if (STRefMethodName.startswith("default"))
1353  len = strlen("default");
1354  else
1355  return;
1356  MethodName = STRefMethodName.substr(len);
1357  }
1358  std::string MethodNameSubStr = MethodName.substr(0, 3);
1359  StringRef MethodNamePrefix(MethodNameSubStr);
1360  std::string StringLoweredMethodNamePrefix = MethodNamePrefix.lower();
1361  MethodNamePrefix = StringLoweredMethodNamePrefix;
1362  size_t Ix = LoweredClassName.rfind(MethodNamePrefix);
1363  if (Ix == StringRef::npos)
1364  return;
1365  std::string ClassNamePostfix = LoweredClassName.substr(Ix);
1366  StringRef LoweredMethodName(MethodName);
1367  std::string StringLoweredMethodName = LoweredMethodName.lower();
1368  LoweredMethodName = StringLoweredMethodName;
1369  if (!LoweredMethodName.startswith(ClassNamePostfix))
1370  return;
1371  if (OIT_Family == OIT_ReturnsSelf)
1372  ReplaceWithClasstype(*this, OM);
1373  else
1374  ReplaceWithInstancetype(Ctx, *this, OM);
1375 }
1376 
1377 static bool IsVoidStarType(QualType Ty) {
1378  if (!Ty->isPointerType())
1379  return false;
1380 
1381  while (const TypedefType *TD = dyn_cast<TypedefType>(Ty.getTypePtr()))
1382  Ty = TD->getDecl()->getUnderlyingType();
1383 
1384  // Is the type void*?
1385  const PointerType* PT = Ty->getAs<PointerType>();
1387  return true;
1388  return IsVoidStarType(PT->getPointeeType());
1389 }
1390 
1391 /// AuditedType - This routine audits the type AT and returns false if it is one of known
1392 /// CF object types or of the "void *" variety. It returns true if we don't care about the type
1393 /// such as a non-pointer or pointers which have no ownership issues (such as "int *").
1394 static bool AuditedType (QualType AT) {
1395  if (!AT->isAnyPointerType() && !AT->isBlockPointerType())
1396  return true;
1397  // FIXME. There isn't much we can say about CF pointer type; or is there?
1399  IsVoidStarType(AT) ||
1400  // If an ObjC object is type, assuming that it is not a CF function and
1401  // that it is an un-audited function.
1403  return false;
1404  // All other pointers are assumed audited as harmless.
1405  return true;
1406 }
1407 
1408 void ObjCMigrateASTConsumer::AnnotateImplicitBridging(ASTContext &Ctx) {
1409  if (CFFunctionIBCandidates.empty())
1410  return;
1411  if (!NSAPIObj->isMacroDefined("CF_IMPLICIT_BRIDGING_ENABLED")) {
1412  CFFunctionIBCandidates.clear();
1413  FileId = FileID();
1414  return;
1415  }
1416  // Insert CF_IMPLICIT_BRIDGING_ENABLE/CF_IMPLICIT_BRIDGING_DISABLED
1417  const Decl *FirstFD = CFFunctionIBCandidates[0];
1418  const Decl *LastFD =
1419  CFFunctionIBCandidates[CFFunctionIBCandidates.size()-1];
1420  const char *PragmaString = "\nCF_IMPLICIT_BRIDGING_ENABLED\n\n";
1421  edit::Commit commit(*Editor);
1422  commit.insertBefore(FirstFD->getLocStart(), PragmaString);
1423  PragmaString = "\n\nCF_IMPLICIT_BRIDGING_DISABLED\n";
1424  SourceLocation EndLoc = LastFD->getLocEnd();
1425  // get location just past end of function location.
1426  EndLoc = PP.getLocForEndOfToken(EndLoc);
1427  if (isa<FunctionDecl>(LastFD)) {
1428  // For Methods, EndLoc points to the ending semcolon. So,
1429  // not of these extra work is needed.
1430  Token Tok;
1431  // get locaiton of token that comes after end of function.
1432  bool Failed = PP.getRawToken(EndLoc, Tok, /*IgnoreWhiteSpace=*/true);
1433  if (!Failed)
1434  EndLoc = Tok.getLocation();
1435  }
1436  commit.insertAfterToken(EndLoc, PragmaString);
1437  Editor->commit(commit);
1438  FileId = FileID();
1439  CFFunctionIBCandidates.clear();
1440 }
1441 
1442 void ObjCMigrateASTConsumer::migrateCFAnnotation(ASTContext &Ctx, const Decl *Decl) {
1443  if (Decl->isDeprecated())
1444  return;
1445 
1446  if (Decl->hasAttr<CFAuditedTransferAttr>()) {
1447  assert(CFFunctionIBCandidates.empty() &&
1448  "Cannot have audited functions/methods inside user "
1449  "provided CF_IMPLICIT_BRIDGING_ENABLE");
1450  return;
1451  }
1452 
1453  // Finction must be annotated first.
1454  if (const FunctionDecl *FuncDecl = dyn_cast<FunctionDecl>(Decl)) {
1455  CF_BRIDGING_KIND AuditKind = migrateAddFunctionAnnotation(Ctx, FuncDecl);
1456  if (AuditKind == CF_BRIDGING_ENABLE) {
1457  CFFunctionIBCandidates.push_back(Decl);
1458  if (FileId.isInvalid())
1459  FileId = PP.getSourceManager().getFileID(Decl->getLocation());
1460  }
1461  else if (AuditKind == CF_BRIDGING_MAY_INCLUDE) {
1462  if (!CFFunctionIBCandidates.empty()) {
1463  CFFunctionIBCandidates.push_back(Decl);
1464  if (FileId.isInvalid())
1465  FileId = PP.getSourceManager().getFileID(Decl->getLocation());
1466  }
1467  }
1468  else
1469  AnnotateImplicitBridging(Ctx);
1470  }
1471  else {
1472  migrateAddMethodAnnotation(Ctx, cast<ObjCMethodDecl>(Decl));
1473  AnnotateImplicitBridging(Ctx);
1474  }
1475 }
1476 
1477 void ObjCMigrateASTConsumer::AddCFAnnotations(ASTContext &Ctx,
1478  const CallEffects &CE,
1479  const FunctionDecl *FuncDecl,
1480  bool ResultAnnotated) {
1481  // Annotate function.
1482  if (!ResultAnnotated) {
1483  RetEffect Ret = CE.getReturnValue();
1484  const char *AnnotationString = nullptr;
1485  if (Ret.getObjKind() == RetEffect::CF) {
1486  if (Ret.isOwned() && NSAPIObj->isMacroDefined("CF_RETURNS_RETAINED"))
1487  AnnotationString = " CF_RETURNS_RETAINED";
1488  else if (Ret.notOwned() &&
1489  NSAPIObj->isMacroDefined("CF_RETURNS_NOT_RETAINED"))
1490  AnnotationString = " CF_RETURNS_NOT_RETAINED";
1491  }
1492  else if (Ret.getObjKind() == RetEffect::ObjC) {
1493  if (Ret.isOwned() && NSAPIObj->isMacroDefined("NS_RETURNS_RETAINED"))
1494  AnnotationString = " NS_RETURNS_RETAINED";
1495  }
1496 
1497  if (AnnotationString) {
1498  edit::Commit commit(*Editor);
1499  commit.insertAfterToken(FuncDecl->getLocEnd(), AnnotationString);
1500  Editor->commit(commit);
1501  }
1502  }
1503  ArrayRef<ArgEffect> AEArgs = CE.getArgs();
1504  unsigned i = 0;
1505  for (FunctionDecl::param_const_iterator pi = FuncDecl->param_begin(),
1506  pe = FuncDecl->param_end(); pi != pe; ++pi, ++i) {
1507  const ParmVarDecl *pd = *pi;
1508  ArgEffect AE = AEArgs[i];
1509  if (AE == DecRef && !pd->hasAttr<CFConsumedAttr>() &&
1510  NSAPIObj->isMacroDefined("CF_CONSUMED")) {
1511  edit::Commit commit(*Editor);
1512  commit.insertBefore(pd->getLocation(), "CF_CONSUMED ");
1513  Editor->commit(commit);
1514  }
1515  else if (AE == DecRefMsg && !pd->hasAttr<NSConsumedAttr>() &&
1516  NSAPIObj->isMacroDefined("NS_CONSUMED")) {
1517  edit::Commit commit(*Editor);
1518  commit.insertBefore(pd->getLocation(), "NS_CONSUMED ");
1519  Editor->commit(commit);
1520  }
1521  }
1522 }
1523 
1524 
1525 ObjCMigrateASTConsumer::CF_BRIDGING_KIND
1526  ObjCMigrateASTConsumer::migrateAddFunctionAnnotation(
1527  ASTContext &Ctx,
1528  const FunctionDecl *FuncDecl) {
1529  if (FuncDecl->hasBody())
1530  return CF_BRIDGING_NONE;
1531 
1532  CallEffects CE = CallEffects::getEffect(FuncDecl);
1533  bool FuncIsReturnAnnotated = (FuncDecl->hasAttr<CFReturnsRetainedAttr>() ||
1534  FuncDecl->hasAttr<CFReturnsNotRetainedAttr>() ||
1535  FuncDecl->hasAttr<NSReturnsRetainedAttr>() ||
1536  FuncDecl->hasAttr<NSReturnsNotRetainedAttr>() ||
1537  FuncDecl->hasAttr<NSReturnsAutoreleasedAttr>());
1538 
1539  // Trivial case of when funciton is annotated and has no argument.
1540  if (FuncIsReturnAnnotated && FuncDecl->getNumParams() == 0)
1541  return CF_BRIDGING_NONE;
1542 
1543  bool ReturnCFAudited = false;
1544  if (!FuncIsReturnAnnotated) {
1545  RetEffect Ret = CE.getReturnValue();
1546  if (Ret.getObjKind() == RetEffect::CF &&
1547  (Ret.isOwned() || Ret.notOwned()))
1548  ReturnCFAudited = true;
1549  else if (!AuditedType(FuncDecl->getReturnType()))
1550  return CF_BRIDGING_NONE;
1551  }
1552 
1553  // At this point result type is audited for potential inclusion.
1554  // Now, how about argument types.
1555  ArrayRef<ArgEffect> AEArgs = CE.getArgs();
1556  unsigned i = 0;
1557  bool ArgCFAudited = false;
1558  for (FunctionDecl::param_const_iterator pi = FuncDecl->param_begin(),
1559  pe = FuncDecl->param_end(); pi != pe; ++pi, ++i) {
1560  const ParmVarDecl *pd = *pi;
1561  ArgEffect AE = AEArgs[i];
1562  if (AE == DecRef /*CFConsumed annotated*/ || AE == IncRef) {
1563  if (AE == DecRef && !pd->hasAttr<CFConsumedAttr>())
1564  ArgCFAudited = true;
1565  else if (AE == IncRef)
1566  ArgCFAudited = true;
1567  }
1568  else {
1569  QualType AT = pd->getType();
1570  if (!AuditedType(AT)) {
1571  AddCFAnnotations(Ctx, CE, FuncDecl, FuncIsReturnAnnotated);
1572  return CF_BRIDGING_NONE;
1573  }
1574  }
1575  }
1576  if (ReturnCFAudited || ArgCFAudited)
1577  return CF_BRIDGING_ENABLE;
1578 
1579  return CF_BRIDGING_MAY_INCLUDE;
1580 }
1581 
1582 void ObjCMigrateASTConsumer::migrateARCSafeAnnotation(ASTContext &Ctx,
1583  ObjCContainerDecl *CDecl) {
1584  if (!isa<ObjCInterfaceDecl>(CDecl) || CDecl->isDeprecated())
1585  return;
1586 
1587  // migrate methods which can have instancetype as their result type.
1588  for (const auto *Method : CDecl->methods())
1589  migrateCFAnnotation(Ctx, Method);
1590 }
1591 
1592 void ObjCMigrateASTConsumer::AddCFAnnotations(ASTContext &Ctx,
1593  const CallEffects &CE,
1594  const ObjCMethodDecl *MethodDecl,
1595  bool ResultAnnotated) {
1596  // Annotate function.
1597  if (!ResultAnnotated) {
1598  RetEffect Ret = CE.getReturnValue();
1599  const char *AnnotationString = nullptr;
1600  if (Ret.getObjKind() == RetEffect::CF) {
1601  if (Ret.isOwned() && NSAPIObj->isMacroDefined("CF_RETURNS_RETAINED"))
1602  AnnotationString = " CF_RETURNS_RETAINED";
1603  else if (Ret.notOwned() &&
1604  NSAPIObj->isMacroDefined("CF_RETURNS_NOT_RETAINED"))
1605  AnnotationString = " CF_RETURNS_NOT_RETAINED";
1606  }
1607  else if (Ret.getObjKind() == RetEffect::ObjC) {
1608  ObjCMethodFamily OMF = MethodDecl->getMethodFamily();
1609  switch (OMF) {
1610  case clang::OMF_alloc:
1611  case clang::OMF_new:
1612  case clang::OMF_copy:
1613  case clang::OMF_init:
1615  break;
1616 
1617  default:
1618  if (Ret.isOwned() && NSAPIObj->isMacroDefined("NS_RETURNS_RETAINED"))
1619  AnnotationString = " NS_RETURNS_RETAINED";
1620  break;
1621  }
1622  }
1623 
1624  if (AnnotationString) {
1625  edit::Commit commit(*Editor);
1626  commit.insertBefore(MethodDecl->getLocEnd(), AnnotationString);
1627  Editor->commit(commit);
1628  }
1629  }
1630  ArrayRef<ArgEffect> AEArgs = CE.getArgs();
1631  unsigned i = 0;
1632  for (ObjCMethodDecl::param_const_iterator pi = MethodDecl->param_begin(),
1633  pe = MethodDecl->param_end(); pi != pe; ++pi, ++i) {
1634  const ParmVarDecl *pd = *pi;
1635  ArgEffect AE = AEArgs[i];
1636  if (AE == DecRef && !pd->hasAttr<CFConsumedAttr>() &&
1637  NSAPIObj->isMacroDefined("CF_CONSUMED")) {
1638  edit::Commit commit(*Editor);
1639  commit.insertBefore(pd->getLocation(), "CF_CONSUMED ");
1640  Editor->commit(commit);
1641  }
1642  }
1643 }
1644 
1645 void ObjCMigrateASTConsumer::migrateAddMethodAnnotation(
1646  ASTContext &Ctx,
1647  const ObjCMethodDecl *MethodDecl) {
1648  if (MethodDecl->hasBody() || MethodDecl->isImplicit())
1649  return;
1650 
1651  CallEffects CE = CallEffects::getEffect(MethodDecl);
1652  bool MethodIsReturnAnnotated = (MethodDecl->hasAttr<CFReturnsRetainedAttr>() ||
1653  MethodDecl->hasAttr<CFReturnsNotRetainedAttr>() ||
1654  MethodDecl->hasAttr<NSReturnsRetainedAttr>() ||
1655  MethodDecl->hasAttr<NSReturnsNotRetainedAttr>() ||
1656  MethodDecl->hasAttr<NSReturnsAutoreleasedAttr>());
1657 
1658  if (CE.getReceiver() == DecRefMsg &&
1659  !MethodDecl->hasAttr<NSConsumesSelfAttr>() &&
1660  MethodDecl->getMethodFamily() != OMF_init &&
1661  MethodDecl->getMethodFamily() != OMF_release &&
1662  NSAPIObj->isMacroDefined("NS_CONSUMES_SELF")) {
1663  edit::Commit commit(*Editor);
1664  commit.insertBefore(MethodDecl->getLocEnd(), " NS_CONSUMES_SELF");
1665  Editor->commit(commit);
1666  }
1667 
1668  // Trivial case of when funciton is annotated and has no argument.
1669  if (MethodIsReturnAnnotated &&
1670  (MethodDecl->param_begin() == MethodDecl->param_end()))
1671  return;
1672 
1673  if (!MethodIsReturnAnnotated) {
1674  RetEffect Ret = CE.getReturnValue();
1675  if ((Ret.getObjKind() == RetEffect::CF ||
1676  Ret.getObjKind() == RetEffect::ObjC) &&
1677  (Ret.isOwned() || Ret.notOwned())) {
1678  AddCFAnnotations(Ctx, CE, MethodDecl, false);
1679  return;
1680  } else if (!AuditedType(MethodDecl->getReturnType()))
1681  return;
1682  }
1683 
1684  // At this point result type is either annotated or audited.
1685  // Now, how about argument types.
1686  ArrayRef<ArgEffect> AEArgs = CE.getArgs();
1687  unsigned i = 0;
1688  for (ObjCMethodDecl::param_const_iterator pi = MethodDecl->param_begin(),
1689  pe = MethodDecl->param_end(); pi != pe; ++pi, ++i) {
1690  const ParmVarDecl *pd = *pi;
1691  ArgEffect AE = AEArgs[i];
1692  if ((AE == DecRef && !pd->hasAttr<CFConsumedAttr>()) || AE == IncRef ||
1693  !AuditedType(pd->getType())) {
1694  AddCFAnnotations(Ctx, CE, MethodDecl, MethodIsReturnAnnotated);
1695  return;
1696  }
1697  }
1698  return;
1699 }
1700 
1701 namespace {
1702 class SuperInitChecker : public RecursiveASTVisitor<SuperInitChecker> {
1703 public:
1704  bool shouldVisitTemplateInstantiations() const { return false; }
1705  bool shouldWalkTypesOfTypeLocs() const { return false; }
1706 
1707  bool VisitObjCMessageExpr(ObjCMessageExpr *E) {
1709  if (E->getMethodFamily() == OMF_init)
1710  return false;
1711  }
1712  return true;
1713  }
1714 };
1715 } // anonymous namespace
1716 
1717 static bool hasSuperInitCall(const ObjCMethodDecl *MD) {
1718  return !SuperInitChecker().TraverseStmt(MD->getBody());
1719 }
1720 
1721 void ObjCMigrateASTConsumer::inferDesignatedInitializers(
1722  ASTContext &Ctx,
1723  const ObjCImplementationDecl *ImplD) {
1724 
1725  const ObjCInterfaceDecl *IFace = ImplD->getClassInterface();
1726  if (!IFace || IFace->hasDesignatedInitializers())
1727  return;
1728  if (!NSAPIObj->isMacroDefined("NS_DESIGNATED_INITIALIZER"))
1729  return;
1730 
1731  for (const auto *MD : ImplD->instance_methods()) {
1732  if (MD->isDeprecated() ||
1733  MD->getMethodFamily() != OMF_init ||
1734  MD->isDesignatedInitializerForTheInterface())
1735  continue;
1736  const ObjCMethodDecl *IFaceM = IFace->getMethod(MD->getSelector(),
1737  /*isInstance=*/true);
1738  if (!IFaceM)
1739  continue;
1740  if (hasSuperInitCall(MD)) {
1741  edit::Commit commit(*Editor);
1742  commit.insert(IFaceM->getLocEnd(), " NS_DESIGNATED_INITIALIZER");
1743  Editor->commit(commit);
1744  }
1745  }
1746 }
1747 
1748 bool ObjCMigrateASTConsumer::InsertFoundation(ASTContext &Ctx,
1749  SourceLocation Loc) {
1750  if (FoundationIncluded)
1751  return true;
1752  if (Loc.isInvalid())
1753  return false;
1754  edit::Commit commit(*Editor);
1755  if (Ctx.getLangOpts().Modules)
1756  commit.insert(Loc, "#ifndef NS_ENUM\n@import Foundation;\n#endif\n");
1757  else
1758  commit.insert(Loc, "#ifndef NS_ENUM\n#import <Foundation/Foundation.h>\n#endif\n");
1759  Editor->commit(commit);
1760  FoundationIncluded = true;
1761  return true;
1762 }
1763 
1764 namespace {
1765 
1766 class RewritesReceiver : public edit::EditsReceiver {
1767  Rewriter &Rewrite;
1768 
1769 public:
1770  RewritesReceiver(Rewriter &Rewrite) : Rewrite(Rewrite) { }
1771 
1772  void insert(SourceLocation loc, StringRef text) override {
1773  Rewrite.InsertText(loc, text);
1774  }
1775  void replace(CharSourceRange range, StringRef text) override {
1776  Rewrite.ReplaceText(range.getBegin(), Rewrite.getRangeSize(range), text);
1777  }
1778 };
1779 
1780 class JSONEditWriter : public edit::EditsReceiver {
1782  llvm::raw_ostream &OS;
1783 
1784 public:
1785  JSONEditWriter(SourceManager &SM, llvm::raw_ostream &OS)
1786  : SourceMgr(SM), OS(OS) {
1787  OS << "[\n";
1788  }
1789  ~JSONEditWriter() override { OS << "]\n"; }
1790 
1791 private:
1792  struct EntryWriter {
1794  llvm::raw_ostream &OS;
1795 
1796  EntryWriter(SourceManager &SM, llvm::raw_ostream &OS)
1797  : SourceMgr(SM), OS(OS) {
1798  OS << " {\n";
1799  }
1800  ~EntryWriter() {
1801  OS << " },\n";
1802  }
1803 
1804  void writeLoc(SourceLocation Loc) {
1805  FileID FID;
1806  unsigned Offset;
1807  std::tie(FID, Offset) = SourceMgr.getDecomposedLoc(Loc);
1808  assert(!FID.isInvalid());
1809  SmallString<200> Path =
1810  StringRef(SourceMgr.getFileEntryForID(FID)->getName());
1811  llvm::sys::fs::make_absolute(Path);
1812  OS << " \"file\": \"";
1813  OS.write_escaped(Path.str()) << "\",\n";
1814  OS << " \"offset\": " << Offset << ",\n";
1815  }
1816 
1817  void writeRemove(CharSourceRange Range) {
1818  assert(Range.isCharRange());
1819  std::pair<FileID, unsigned> Begin =
1821  std::pair<FileID, unsigned> End =
1823  assert(Begin.first == End.first);
1824  assert(Begin.second <= End.second);
1825  unsigned Length = End.second - Begin.second;
1826 
1827  OS << " \"remove\": " << Length << ",\n";
1828  }
1829 
1830  void writeText(StringRef Text) {
1831  OS << " \"text\": \"";
1832  OS.write_escaped(Text) << "\",\n";
1833  }
1834  };
1835 
1836  void insert(SourceLocation Loc, StringRef Text) override {
1837  EntryWriter Writer(SourceMgr, OS);
1838  Writer.writeLoc(Loc);
1839  Writer.writeText(Text);
1840  }
1841 
1842  void replace(CharSourceRange Range, StringRef Text) override {
1843  EntryWriter Writer(SourceMgr, OS);
1844  Writer.writeLoc(Range.getBegin());
1845  Writer.writeRemove(Range);
1846  Writer.writeText(Text);
1847  }
1848 
1849  void remove(CharSourceRange Range) override {
1850  EntryWriter Writer(SourceMgr, OS);
1851  Writer.writeLoc(Range.getBegin());
1852  Writer.writeRemove(Range);
1853  }
1854 };
1855 
1856 }
1857 
1858 void ObjCMigrateASTConsumer::HandleTranslationUnit(ASTContext &Ctx) {
1859 
1861  if (ASTMigrateActions & FrontendOptions::ObjCMT_MigrateDecls) {
1862  for (DeclContext::decl_iterator D = TU->decls_begin(), DEnd = TU->decls_end();
1863  D != DEnd; ++D) {
1864  FileID FID = PP.getSourceManager().getFileID((*D)->getLocation());
1865  if (!FID.isInvalid())
1866  if (!FileId.isInvalid() && FileId != FID) {
1867  if (ASTMigrateActions & FrontendOptions::ObjCMT_Annotation)
1868  AnnotateImplicitBridging(Ctx);
1869  }
1870 
1871  if (ObjCInterfaceDecl *CDecl = dyn_cast<ObjCInterfaceDecl>(*D))
1872  if (canModify(CDecl))
1873  migrateObjCContainerDecl(Ctx, CDecl);
1874  if (ObjCCategoryDecl *CatDecl = dyn_cast<ObjCCategoryDecl>(*D)) {
1875  if (canModify(CatDecl))
1876  migrateObjCContainerDecl(Ctx, CatDecl);
1877  }
1878  else if (ObjCProtocolDecl *PDecl = dyn_cast<ObjCProtocolDecl>(*D)) {
1879  ObjCProtocolDecls.insert(PDecl->getCanonicalDecl());
1880  if (canModify(PDecl))
1881  migrateObjCContainerDecl(Ctx, PDecl);
1882  }
1883  else if (const ObjCImplementationDecl *ImpDecl =
1884  dyn_cast<ObjCImplementationDecl>(*D)) {
1885  if ((ASTMigrateActions & FrontendOptions::ObjCMT_ProtocolConformance) &&
1886  canModify(ImpDecl))
1887  migrateProtocolConformance(Ctx, ImpDecl);
1888  }
1889  else if (const EnumDecl *ED = dyn_cast<EnumDecl>(*D)) {
1890  if (!(ASTMigrateActions & FrontendOptions::ObjCMT_NsMacros))
1891  continue;
1892  if (!canModify(ED))
1893  continue;
1895  if (++N != DEnd) {
1896  const TypedefDecl *TD = dyn_cast<TypedefDecl>(*N);
1897  if (migrateNSEnumDecl(Ctx, ED, TD) && TD)
1898  D++;
1899  }
1900  else
1901  migrateNSEnumDecl(Ctx, ED, /*TypedefDecl */nullptr);
1902  }
1903  else if (const TypedefDecl *TD = dyn_cast<TypedefDecl>(*D)) {
1904  if (!(ASTMigrateActions & FrontendOptions::ObjCMT_NsMacros))
1905  continue;
1906  if (!canModify(TD))
1907  continue;
1909  if (++N == DEnd)
1910  continue;
1911  if (const EnumDecl *ED = dyn_cast<EnumDecl>(*N)) {
1912  if (++N != DEnd)
1913  if (const TypedefDecl *TDF = dyn_cast<TypedefDecl>(*N)) {
1914  // prefer typedef-follows-enum to enum-follows-typedef pattern.
1915  if (migrateNSEnumDecl(Ctx, ED, TDF)) {
1916  ++D; ++D;
1917  CacheObjCNSIntegerTypedefed(TD);
1918  continue;
1919  }
1920  }
1921  if (migrateNSEnumDecl(Ctx, ED, TD)) {
1922  ++D;
1923  continue;
1924  }
1925  }
1926  CacheObjCNSIntegerTypedefed(TD);
1927  }
1928  else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(*D)) {
1929  if ((ASTMigrateActions & FrontendOptions::ObjCMT_Annotation) &&
1930  canModify(FD))
1931  migrateCFAnnotation(Ctx, FD);
1932  }
1933 
1934  if (ObjCContainerDecl *CDecl = dyn_cast<ObjCContainerDecl>(*D)) {
1935  bool CanModify = canModify(CDecl);
1936  // migrate methods which can have instancetype as their result type.
1937  if ((ASTMigrateActions & FrontendOptions::ObjCMT_Instancetype) &&
1938  CanModify)
1939  migrateAllMethodInstaceType(Ctx, CDecl);
1940  // annotate methods with CF annotations.
1941  if ((ASTMigrateActions & FrontendOptions::ObjCMT_Annotation) &&
1942  CanModify)
1943  migrateARCSafeAnnotation(Ctx, CDecl);
1944  }
1945 
1946  if (const ObjCImplementationDecl *
1947  ImplD = dyn_cast<ObjCImplementationDecl>(*D)) {
1948  if ((ASTMigrateActions & FrontendOptions::ObjCMT_DesignatedInitializer) &&
1949  canModify(ImplD))
1950  inferDesignatedInitializers(Ctx, ImplD);
1951  }
1952  }
1953  if (ASTMigrateActions & FrontendOptions::ObjCMT_Annotation)
1954  AnnotateImplicitBridging(Ctx);
1955  }
1956 
1957  if (IsOutputFile) {
1958  std::error_code EC;
1959  llvm::raw_fd_ostream OS(MigrateDir, EC, llvm::sys::fs::F_None);
1960  if (EC) {
1961  DiagnosticsEngine &Diags = Ctx.getDiagnostics();
1962  Diags.Report(Diags.getCustomDiagID(DiagnosticsEngine::Error, "%0"))
1963  << EC.message();
1964  return;
1965  }
1966 
1967  JSONEditWriter Writer(Ctx.getSourceManager(), OS);
1968  Editor->applyRewrites(Writer);
1969  return;
1970  }
1971 
1972  Rewriter rewriter(Ctx.getSourceManager(), Ctx.getLangOpts());
1973  RewritesReceiver Rec(rewriter);
1974  Editor->applyRewrites(Rec);
1975 
1977  I = rewriter.buffer_begin(), E = rewriter.buffer_end(); I != E; ++I) {
1978  FileID FID = I->first;
1979  RewriteBuffer &buf = I->second;
1980  const FileEntry *file = Ctx.getSourceManager().getFileEntryForID(FID);
1981  assert(file);
1982  SmallString<512> newText;
1983  llvm::raw_svector_ostream vecOS(newText);
1984  buf.write(vecOS);
1985  vecOS.flush();
1986  std::unique_ptr<llvm::MemoryBuffer> memBuf(
1987  llvm::MemoryBuffer::getMemBufferCopy(
1988  StringRef(newText.data(), newText.size()), file->getName()));
1989  SmallString<64> filePath(file->getName());
1990  FileMgr.FixupRelativePath(filePath);
1991  Remapper.remap(filePath.str(), std::move(memBuf));
1992  }
1993 
1994  if (IsOutputFile) {
1995  Remapper.flushToFile(MigrateDir, Ctx.getDiagnostics());
1996  } else {
1997  Remapper.flushToDisk(MigrateDir, Ctx.getDiagnostics());
1998  }
1999 }
2000 
2003  return true;
2004 }
2005 
2006 static std::vector<std::string> getWhiteListFilenames(StringRef DirPath) {
2007  using namespace llvm::sys::fs;
2008  using namespace llvm::sys::path;
2009 
2010  std::vector<std::string> Filenames;
2011  if (DirPath.empty() || !is_directory(DirPath))
2012  return Filenames;
2013 
2014  std::error_code EC;
2015  directory_iterator DI = directory_iterator(DirPath, EC);
2016  directory_iterator DE;
2017  for (; !EC && DI != DE; DI = DI.increment(EC)) {
2018  if (is_regular_file(DI->path()))
2019  Filenames.push_back(filename(DI->path()));
2020  }
2021 
2022  return Filenames;
2023 }
2024 
2025 std::unique_ptr<ASTConsumer>
2029  unsigned ObjCMTAction = CI.getFrontendOpts().ObjCMTAction;
2030  unsigned ObjCMTOpts = ObjCMTAction;
2031  // These are companion flags, they do not enable transformations.
2032  ObjCMTOpts &= ~(FrontendOptions::ObjCMT_AtomicProperty |
2034  if (ObjCMTOpts == FrontendOptions::ObjCMT_None) {
2035  // If no specific option was given, enable literals+subscripting transforms
2036  // by default.
2037  ObjCMTAction |= FrontendOptions::ObjCMT_Literals |
2039  }
2040  CI.getPreprocessor().addPPCallbacks(std::unique_ptr<PPCallbacks>(PPRec));
2041  std::vector<std::string> WhiteList =
2043  return llvm::make_unique<ObjCMigrateASTConsumer>(
2044  CI.getFrontendOpts().OutputFile, ObjCMTAction, Remapper,
2045  CI.getFileManager(), PPRec, CI.getPreprocessor(),
2046  /*isOutputFile=*/true, WhiteList);
2047 }
2048 
2049 namespace {
2050 struct EditEntry {
2051  const FileEntry *File;
2052  unsigned Offset;
2053  unsigned RemoveLen;
2054  std::string Text;
2055 
2056  EditEntry() : File(), Offset(), RemoveLen() {}
2057 };
2058 }
2059 
2060 namespace llvm {
2061 template<> struct DenseMapInfo<EditEntry> {
2062  static inline EditEntry getEmptyKey() {
2063  EditEntry Entry;
2064  Entry.Offset = unsigned(-1);
2065  return Entry;
2066  }
2067  static inline EditEntry getTombstoneKey() {
2068  EditEntry Entry;
2069  Entry.Offset = unsigned(-2);
2070  return Entry;
2071  }
2072  static unsigned getHashValue(const EditEntry& Val) {
2073  llvm::FoldingSetNodeID ID;
2074  ID.AddPointer(Val.File);
2075  ID.AddInteger(Val.Offset);
2076  ID.AddInteger(Val.RemoveLen);
2077  ID.AddString(Val.Text);
2078  return ID.ComputeHash();
2079  }
2080  static bool isEqual(const EditEntry &LHS, const EditEntry &RHS) {
2081  return LHS.File == RHS.File &&
2082  LHS.Offset == RHS.Offset &&
2083  LHS.RemoveLen == RHS.RemoveLen &&
2084  LHS.Text == RHS.Text;
2085  }
2086 };
2087 }
2088 
2089 namespace {
2090 class RemapFileParser {
2091  FileManager &FileMgr;
2092 
2093 public:
2094  RemapFileParser(FileManager &FileMgr) : FileMgr(FileMgr) { }
2095 
2096  bool parse(StringRef File, SmallVectorImpl<EditEntry> &Entries) {
2097  using namespace llvm::yaml;
2098 
2099  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> FileBufOrErr =
2100  llvm::MemoryBuffer::getFile(File);
2101  if (!FileBufOrErr)
2102  return true;
2103 
2105  Stream YAMLStream(FileBufOrErr.get()->getMemBufferRef(), SM);
2106  document_iterator I = YAMLStream.begin();
2107  if (I == YAMLStream.end())
2108  return true;
2109  Node *Root = I->getRoot();
2110  if (!Root)
2111  return true;
2112 
2113  SequenceNode *SeqNode = dyn_cast<SequenceNode>(Root);
2114  if (!SeqNode)
2115  return true;
2116 
2117  for (SequenceNode::iterator
2118  AI = SeqNode->begin(), AE = SeqNode->end(); AI != AE; ++AI) {
2119  MappingNode *MapNode = dyn_cast<MappingNode>(&*AI);
2120  if (!MapNode)
2121  continue;
2122  parseEdit(MapNode, Entries);
2123  }
2124 
2125  return false;
2126  }
2127 
2128 private:
2129  void parseEdit(llvm::yaml::MappingNode *Node,
2130  SmallVectorImpl<EditEntry> &Entries) {
2131  using namespace llvm::yaml;
2132  EditEntry Entry;
2133  bool Ignore = false;
2134 
2135  for (MappingNode::iterator
2136  KVI = Node->begin(), KVE = Node->end(); KVI != KVE; ++KVI) {
2137  ScalarNode *KeyString = dyn_cast<ScalarNode>((*KVI).getKey());
2138  if (!KeyString)
2139  continue;
2140  SmallString<10> KeyStorage;
2141  StringRef Key = KeyString->getValue(KeyStorage);
2142 
2143  ScalarNode *ValueString = dyn_cast<ScalarNode>((*KVI).getValue());
2144  if (!ValueString)
2145  continue;
2146  SmallString<64> ValueStorage;
2147  StringRef Val = ValueString->getValue(ValueStorage);
2148 
2149  if (Key == "file") {
2150  const FileEntry *FE = FileMgr.getFile(Val);
2151  if (!FE)
2152  Ignore = true;
2153  Entry.File = FE;
2154  } else if (Key == "offset") {
2155  if (Val.getAsInteger(10, Entry.Offset))
2156  Ignore = true;
2157  } else if (Key == "remove") {
2158  if (Val.getAsInteger(10, Entry.RemoveLen))
2159  Ignore = true;
2160  } else if (Key == "text") {
2161  Entry.Text = Val;
2162  }
2163  }
2164 
2165  if (!Ignore)
2166  Entries.push_back(Entry);
2167  }
2168 };
2169 }
2170 
2171 static bool reportDiag(const Twine &Err, DiagnosticsEngine &Diag) {
2173  << Err.str();
2174  return true;
2175 }
2176 
2177 static std::string applyEditsToTemp(const FileEntry *FE,
2178  ArrayRef<EditEntry> Edits,
2179  FileManager &FileMgr,
2181  using namespace llvm::sys;
2182 
2183  SourceManager SM(Diag, FileMgr);
2185  LangOptions LangOpts;
2186  edit::EditedSource Editor(SM, LangOpts);
2188  I = Edits.begin(), E = Edits.end(); I != E; ++I) {
2189  const EditEntry &Entry = *I;
2190  assert(Entry.File == FE);
2191  SourceLocation Loc =
2192  SM.getLocForStartOfFile(FID).getLocWithOffset(Entry.Offset);
2193  CharSourceRange Range;
2194  if (Entry.RemoveLen != 0) {
2195  Range = CharSourceRange::getCharRange(Loc,
2196  Loc.getLocWithOffset(Entry.RemoveLen));
2197  }
2198 
2199  edit::Commit commit(Editor);
2200  if (Range.isInvalid()) {
2201  commit.insert(Loc, Entry.Text);
2202  } else if (Entry.Text.empty()) {
2203  commit.remove(Range);
2204  } else {
2205  commit.replace(Range, Entry.Text);
2206  }
2207  Editor.commit(commit);
2208  }
2209 
2210  Rewriter rewriter(SM, LangOpts);
2211  RewritesReceiver Rec(rewriter);
2212  Editor.applyRewrites(Rec);
2213 
2214  const RewriteBuffer *Buf = rewriter.getRewriteBufferFor(FID);
2215  SmallString<512> NewText;
2216  llvm::raw_svector_ostream OS(NewText);
2217  Buf->write(OS);
2218  OS.flush();
2219 
2220  SmallString<64> TempPath;
2221  int FD;
2222  if (fs::createTemporaryFile(path::filename(FE->getName()),
2223  path::extension(FE->getName()), FD,
2224  TempPath)) {
2225  reportDiag("Could not create file: " + TempPath.str(), Diag);
2226  return std::string();
2227  }
2228 
2229  llvm::raw_fd_ostream TmpOut(FD, /*shouldClose=*/true);
2230  TmpOut.write(NewText.data(), NewText.size());
2231  TmpOut.close();
2232 
2233  return TempPath.str();
2234 }
2235 
2237  std::vector<std::pair<std::string,std::string> > &remap,
2238  ArrayRef<StringRef> remapFiles,
2239  DiagnosticConsumer *DiagClient) {
2240  bool hasErrorOccurred = false;
2241 
2242  FileSystemOptions FSOpts;
2243  FileManager FileMgr(FSOpts);
2244  RemapFileParser Parser(FileMgr);
2245 
2248  new DiagnosticsEngine(DiagID, new DiagnosticOptions,
2249  DiagClient, /*ShouldOwnClient=*/false));
2250 
2251  typedef llvm::DenseMap<const FileEntry *, std::vector<EditEntry> >
2252  FileEditEntriesTy;
2253  FileEditEntriesTy FileEditEntries;
2254 
2255  llvm::DenseSet<EditEntry> EntriesSet;
2256 
2258  I = remapFiles.begin(), E = remapFiles.end(); I != E; ++I) {
2260  if (Parser.parse(*I, Entries))
2261  continue;
2262 
2264  EI = Entries.begin(), EE = Entries.end(); EI != EE; ++EI) {
2265  EditEntry &Entry = *EI;
2266  if (!Entry.File)
2267  continue;
2268  std::pair<llvm::DenseSet<EditEntry>::iterator, bool>
2269  Insert = EntriesSet.insert(Entry);
2270  if (!Insert.second)
2271  continue;
2272 
2273  FileEditEntries[Entry.File].push_back(Entry);
2274  }
2275  }
2276 
2277  for (FileEditEntriesTy::iterator
2278  I = FileEditEntries.begin(), E = FileEditEntries.end(); I != E; ++I) {
2279  std::string TempFile = applyEditsToTemp(I->first, I->second,
2280  FileMgr, *Diags);
2281  if (TempFile.empty()) {
2282  hasErrorOccurred = true;
2283  continue;
2284  }
2285 
2286  remap.emplace_back(I->first->getName(), TempFile);
2287  }
2288 
2289  return hasErrorOccurred;
2290 }
std::string OutputFile
The output file, if any.
The receiver is the instance of the superclass object.
Definition: ExprObjC.h:1006
SourceManager & getSourceManager() const
Definition: Preprocessor.h:682
param_const_iterator param_begin() const
Definition: DeclObjC.h:359
bool BeginInvocation(CompilerInstance &CI) override
Callback before starting processing a single input, giving the opportunity to modify the CompilerInvo...
Definition: ObjCMT.cpp:2001
Defines the clang::ASTContext interface.
SourceLocation getEnd() const
bool remove(CharSourceRange range)
Definition: Commit.cpp:86
std::unique_ptr< ASTConsumer > CreateASTConsumer(CompilerInstance &CI, StringRef InFile) override
Create the AST consumer object for this action, if supported.
Definition: ObjCMT.cpp:193
static bool AttributesMatch(const Decl *Decl1, const Decl *Decl2, bool &AvailabilityArgsMatch)
Definition: ObjCMT.cpp:1151
static bool MatchTwoAttributeLists(const AttrVec &Attrs1, const AttrVec &Attrs2, bool &AvailabilityArgsMatch)
Definition: ObjCMT.cpp:1122
static DiagnosticBuilder Diag(DiagnosticsEngine *Diags, const LangOptions &Features, FullSourceLoc TokLoc, const char *TokBegin, const char *TokRangeBegin, const char *TokRangeEnd, unsigned DiagID)
Produce a diagnostic highlighting some portion of a literal.
The receiver is an object instance.
Definition: ExprObjC.h:1002
ObjCMigrateAction(FrontendAction *WrappedAction, StringRef migrateDir, unsigned migrateAction)
Definition: ObjCMT.cpp:182
StringRef getName() const
Definition: Decl.h:168
std::string ObjCMTWhiteListPath
ParmVarDecl *const * param_const_iterator
Definition: Decl.h:1943
Smart pointer class that efficiently represents Objective-C method names.
SelectorTable & getSelectorTable()
Definition: Preprocessor.h:687
SourceLocation getBegin() const
Represents a version number in the form major[.minor[.subminor[.build]]].
Definition: VersionTuple.h:26
bool rewriteToObjCSubscriptSyntax(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit)
Implements support for file system lookup, file system caching, and directory search management...
Definition: FileManager.h:115
ObjCMethodFamily getMethodFamily() const
Definition: ExprObjC.h:1267
ObjCInterfaceDecl * getClassInterface()
Definition: DeclObjC.cpp:1014
Defines the clang::FileManager interface and associated types.
bool rewriteToObjCLiteralSyntax(const ObjCMessageExpr *Msg, const NSAPI &NS, Commit &commit, const ParentMap *PMap)
static bool hasSuperInitCall(const ObjCMethodDecl *MD)
Definition: ObjCMT.cpp:1717
IdentifierInfo * getIdentifier() const
Definition: Decl.h:163
protocol_loc_iterator protocol_loc_end() const
Definition: DeclObjC.h:1079
QualType getQualifiedType(SplitQualType split) const
Un-split a SplitQualType.
Definition: ASTContext.h:1581
bool insertWrap(StringRef before, CharSourceRange range, StringRef after)
Definition: Commit.cpp:98
static LLVM_READONLY bool isUppercase(unsigned char c)
Return true if this character is an uppercase ASCII letter: [A-Z].
Definition: CharInfo.h:106
iterator end()
Definition: DeclGroup.h:109
Abstract base class for actions which can be performed by the frontend.
const RewriteBuffer * getRewriteBufferFor(FileID FID) const
Definition: Rewriter.h:170
const char * getCharacterData(SourceLocation SL, bool *Invalid=nullptr) const
Return a pointer to the start of the specified location in the appropriate spelling MemoryBuffer...
std::string getAsString() const
Definition: Type.h:897
static bool TypeIsInnerPointer(QualType T)
Definition: ObjCMT.cpp:1067
IdentifierInfo * getAsIdentifierInfo() const
ObjCProtocolDecl * lookupNestedProtocol(IdentifierInfo *Name)
Definition: DeclObjC.cpp:588
SourceLocation getDeclaratorEndLoc() const
Returns the location where the declarator ends. It will be the location of ';' for a method declarati...
Definition: DeclObjC.h:288
DiagnosticBuilder Report(SourceLocation Loc, unsigned DiagID)
Issue the message to the client.
Definition: Diagnostic.h:1118
bool insertAfterToken(SourceLocation loc, StringRef text, bool beforePreviousInsertions=false)
Definition: Commit.h:69
Enable migration of ObjC methods to 'instancetype'.
A container of type source information.
Definition: Decl.h:60
bool insertFromRange(SourceLocation loc, CharSourceRange range, bool afterToken=false, bool beforePreviousInsertions=false)
Definition: Commit.cpp:59
TypeSourceInfo * getIntegerTypeSourceInfo() const
Return the type source info for the underlying integer type, if no type source info exists...
Definition: Decl.h:3131
bool isBlockPointerType() const
Definition: Type.h:5238
SourceLocation getLocEnd() const LLVM_READONLY
Definition: DeclBase.h:368
const ObjCPropertyDecl * findPropertyDecl(bool CheckOverrides=true) const
Returns the property associated with this method's selector.
Definition: DeclObjC.cpp:1174
ObjCMethodDecl * getMethod(Selector Sel, bool isInstance, bool AllowHidden=false) const
Definition: DeclObjC.cpp:68
void removeObjCLifetime()
Definition: Type.h:293
SourceLocation findSemiAfterLocation(SourceLocation loc, ASTContext &Ctx, bool IsDecl=false)
'Loc' is the end of a statement range. This returns the location of the semicolon following the state...
Definition: Transforms.cpp:137
SourceManager & getSourceManager() const
Return the current source manager.
static std::vector< std::string > getWhiteListFilenames(StringRef DirPath)
Definition: ObjCMT.cpp:2006
bool getRawToken(SourceLocation Loc, Token &Result, bool IgnoreWhiteSpace=false)
Relex the token at the specified location.
SourceLocation getLocStart() const LLVM_READONLY
Definition: DeclObjC.h:291
void applyRewrites(EditsReceiver &receiver)
Abstract interface, implemented by clients of the front-end, which formats and prints fully processed...
Definition: Diagnostic.h:1309
bool isRealType() const
Definition: Type.cpp:1782
Describes how types, statements, expressions, and declarations should be printed. ...
Definition: PrettyPrinter.h:35
decl_iterator decls_end() const
Definition: DeclBase.h:1415
unsigned param_size() const
Definition: DeclObjC.h:348
ParmVarDecl - Represents a parameter to a function.
Definition: Decl.h:1334
bool isObjCRetainableType() const
Definition: Type.cpp:3542
bool isVoidType() const
Definition: Type.h:5426
QualType getType() const
Definition: DeclObjC.h:2505
static EditEntry getTombstoneKey()
Definition: ObjCMT.cpp:2067
Base wrapper for a particular "section" of type source info.
Definition: TypeLoc.h:40
Expr * IgnoreImpCasts() LLVM_READONLY
Definition: Expr.h:2803
bool insert(SourceLocation loc, StringRef text, bool afterToken=false, bool beforePreviousInsertions=false)
Definition: Commit.cpp:43
SourceLocation getLocForEndOfToken(SourceLocation Loc, unsigned Offset=0)
Computes the source location just past the end of the token at this source location.
bool hasBody(const FunctionDecl *&Definition) const
Returns true if the function has a body (definition). The function body might be in any of the (re-)d...
Definition: Decl.cpp:2368
ObjCProtocolDecl * getCanonicalDecl() override
Retrieves the canonical declaration of this Objective-C protocol.
Definition: DeclObjC.h:1905
SourceLocation getSelectorStartLoc() const
Definition: DeclObjC.h:297
static ObjCInstanceTypeFamily getInstTypeMethodFamily(Selector sel)
bool hasAttr() const
Definition: DeclBase.h:487
static std::string applyEditsToTemp(const FileEntry *FE, ArrayRef< EditEntry > Edits, FileManager &FileMgr, DiagnosticsEngine &Diag)
Definition: ObjCMT.cpp:2177
IdentifierInfo * getIdentifierInfoForSlot(unsigned argIndex) const
Retrieve the identifier at a given position in the selector.
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:89
The results of name lookup within a DeclContext. This is either a single result (with no stable stora...
Definition: DeclBase.h:1034
ObjCMethodFamily
A family of Objective-C methods.
QualType getReturnType() const
Definition: Decl.h:1997
bool isCompleteDefinition() const
Definition: Decl.h:2838
bool isAnyPointerType() const
Definition: Type.h:5235
std::unique_ptr< ASTConsumer > CreateASTConsumer(CompilerInstance &CI, StringRef InFile) override
Create the AST consumer object for this action, if supported.
bool hasSameType(QualType T1, QualType T2) const
Determine whether the given types T1 and T2 are equivalent.
Definition: ASTContext.h:1871
method_range methods() const
Definition: DeclObjC.h:727
SourceLocation findLocationAfterSemi(SourceLocation loc, ASTContext &Ctx, bool IsDecl=false)
'Loc' is the end of a statement range. This returns the location immediately after the semicolon foll...
Definition: Transforms.cpp:125
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:48
bool hasSameUnqualifiedType(QualType T1, QualType T2) const
Determine whether the given types are equivalent after cvr-qualifiers have been removed.
Definition: ASTContext.h:1896
Enable migration to add conforming protocols.
IdentifierTable & Idents
Definition: ASTContext.h:439
unsigned SuppressStrongLifetime
When true, suppress printing of the __strong lifetime qualifier in ARC.
SourceLocation getSuperLoc() const
Retrieve the location of the 'super' keyword for a class or instance message to 'super', otherwise an invalid source location.
Definition: ExprObjC.h:1193
static void ReplaceWithInstancetype(ASTContext &Ctx, const ObjCMigrateASTConsumer &ASTC, ObjCMethodDecl *OM)
Definition: ObjCMT.cpp:976
SourceLocation getBeginLoc() const
Get the begin source location.
Definition: TypeLoc.cpp:170
static Selector constructSetterSelector(IdentifierTable &Idents, SelectorTable &SelTable, const IdentifierInfo *Name)
Return the default setter selector for the given identifier.
bool replace(CharSourceRange range, StringRef text)
Definition: Commit.cpp:111
static const char * PropertyMemoryAttribute(ASTContext &Context, QualType ArgType)
Definition: ObjCMT.cpp:436
SourceLocation getLocWithOffset(int Offset) const
Return a source location with the specified offset from this SourceLocation.
const LangOptions & getLangOpts() const
Definition: ASTContext.h:533
bool isImplicit() const
Definition: DeclBase.h:503
FrontendOptions & getFrontendOpts()
SourceLocation getSuperClassLoc() const
Retrieve the starting location of the superclass.
Definition: DeclObjC.cpp:291
uint32_t Offset
Definition: CacheTokens.cpp:43
Enable annotation of ObjCMethods of all kinds.
static bool UseNSOptionsMacro(Preprocessor &PP, ASTContext &Ctx, const EnumDecl *EnumDcl)
Definition: ObjCMT.cpp:811
ObjCMethodFamily getMethodFamily() const
Determines the family of this method.
Definition: DeclObjC.cpp:856
static bool rewriteToNSEnumDecl(const EnumDecl *EnumDcl, const TypedefDecl *TypedefDcl, const NSAPI &NS, edit::Commit &commit, StringRef NSIntegerName, bool NSOptions)
Definition: ObjCMT.cpp:716
tok::TokenKind getTokenID() const
Concrete class used by the front-end to report problems and issues.
Definition: Diagnostic.h:135
bool BeginInvocation(CompilerInstance &CI) override
Callback before starting processing a single input, giving the opportunity to modify the CompilerInvo...
Definition: ObjCMT.cpp:205
bool hasDesignatedInitializers() const
Definition: DeclObjC.cpp:1366
A builtin binary operation expression such as "x + y" or "x <= y".
Definition: Expr.h:2918
RecordDecl * getDecl() const
Definition: Type.h:3527
iterator begin()
Definition: DeclGroup.h:103
std::string getNameAsString() const
Definition: Decl.h:183
Expr * IgnoreParenCasts() LLVM_READONLY
Definition: Expr.cpp:2439
ObjCProtocolDecl * getDefinition()
Retrieve the definition of this protocol, if any.
Definition: DeclObjC.h:1866
static bool reportDiag(const Twine &Err, DiagnosticsEngine &Diag)
Definition: ObjCMT.cpp:2171
child_range children()
Definition: Expr.cpp:4188
bool empty() const
Definition: DeclObjC.h:46
Represents an Objective-C protocol declaration.
Definition: DeclObjC.h:1731
SmallVector< BoundNodes, 1 > match(MatcherT Matcher, const NodeT &Node, ASTContext &Context)
Returns the results of matching Matcher on Node.
A class that does preorder depth-first traversal on the entire Clang AST and visits each node...
Represents an ObjC class declaration.
Definition: DeclObjC.h:851
SourceLocation getLocEnd() const LLVM_READONLY
Definition: DeclObjC.cpp:850
static EditEntry getEmptyKey()
Definition: ObjCMT.cpp:2062
decl_iterator decls_begin() const
Definition: DeclBase.cpp:1141
Preprocessor & getPreprocessor() const
Return the current preprocessor.
QualType getType() const
Definition: Decl.h:538
bool isInvalid() const
param_iterator param_begin()
Definition: Decl.h:1947
DiagnosticsEngine & getDiagnostics() const
AnnotatingParser & P
const ParmVarDecl *const * param_const_iterator
Definition: DeclObjC.h:349
const FileEntry * getFileEntryForID(FileID FID) const
Returns the FileEntry record for the provided FileID.
SourceLocation getLocStart() const LLVM_READONLY
Definition: Decl.h:2560
ObjCProtocolDecl * lookupProtocolNamed(IdentifierInfo *PName)
Definition: DeclObjC.cpp:1717
FileID getFileID(SourceLocation SpellingLoc) const
Return the FileID for a SourceLocation.
Qualifiers::ObjCLifetime getObjCLifetime() const
getObjCLifetime - Returns lifetime attribute of this type.
Definition: Type.h:976
static bool AuditedType(QualType AT)
Definition: ObjCMT.cpp:1394
Enable migration to modern ObjC literals.
ASTContext * Context
const SmallVectorImpl< AnnotatedLine * >::const_iterator End
ID
Defines the set of possible language-specific address spaces.
Definition: AddressSpaces.h:27
bool isFunctionPointerType() const
Definition: Type.h:5250
SourceManager & SM
bool ObjCMethodsAreEqual(const ObjCMethodDecl *MethodDecl, const ObjCMethodDecl *MethodImp)
const ObjCMethodDecl * getMethodDecl() const
Definition: ExprObjC.h:1248
StringRef getName() const
Return the actual identifier string.
Represents a character-granular source range.
SourceLocation getEnd() const
FileID createFileID(const FileEntry *SourceFile, SourceLocation IncludePos, SrcMgr::CharacteristicKind FileCharacter, int LoadedID=0, unsigned LoadedOffset=0)
Create a new FileID that represents the specified file being #included from the specified IncludePosi...
SourceManager & SourceMgr
Definition: Format.cpp:1205
TranslationUnitDecl * getTranslationUnitDecl() const
Definition: ASTContext.h:812
Defines the clang::Preprocessor interface.
static bool IsCategoryNameWithDeprecatedSuffix(ObjCContainerDecl *D)
Definition: ObjCMT.cpp:573
Expr ** getArgs()
Retrieve the arguments to this message, not including the receiver.
Definition: ExprObjC.h:1278
ObjCInstanceTypeFamily
A family of Objective-C methods.
bool isObjCIdType() const
Definition: Type.h:5328
SourceLocation getLocation() const
Return a source location identifier for the specified offset in the current file. ...
Definition: Token.h:124
bool isInstanceMethod() const
Definition: DeclObjC.h:419
static bool IsValidIdentifier(ASTContext &Ctx, const char *Name)
Definition: ObjCMT.cpp:1166
An expression that sends a message to the given Objective-C object or class.
Definition: ExprObjC.h:858
static bool subscriptOperatorNeedsParens(const Expr *FullExpr)
Enable migration to modern ObjC readwrite property.
DeclarationName getDeclName() const
Definition: Decl.h:189
DiagnosticsEngine & getDiagnostics() const
Get the current diagnostics engine.
void CollectInheritedProtocols(const Decl *CDecl, llvm::SmallPtrSet< ObjCProtocolDecl *, 8 > &Protocols)
SourceLocation getLocEnd() const LLVM_READONLY
Definition: TypeLoc.h:131
const clang::PrintingPolicy & getPrintingPolicy() const
Definition: ASTContext.h:486
TypeSourceInfo * getReturnTypeSourceInfo() const
Definition: DeclObjC.h:344
bool isMacroDefined(StringRef Id) const
Returns true if Id is currently defined as a macro.
Definition: NSAPI.cpp:509
AttrVec & getAttrs()
Definition: DeclBase.h:431
bool hasObjCLifetime() const
Definition: Type.h:286
static CharSourceRange getCharRange(SourceRange R)
param_const_iterator param_end() const
Definition: DeclObjC.h:362
SourceLocation getEndLoc() const
Get the end source location.
Definition: TypeLoc.cpp:207
const char * getLiteralData() const
Definition: Token.h:215
std::unique_ptr< ASTConsumer > CreateASTConsumer(CompilerInstance &CI, StringRef InFile) override
Create the AST consumer object for this action, if supported.
Definition: ObjCMT.cpp:2026
static void ReplaceWithClasstype(const ObjCMigrateASTConsumer &ASTC, ObjCMethodDecl *OM)
Definition: ObjCMT.cpp:999
SourceLocation getLocStart() const LLVM_READONLY
Definition: DeclBase.h:365
There is no lifetime qualification on this type.
Definition: Type.h:130
TypeLoc getTypeLoc() const
Return the TypeLoc wrapper for the type source info.
Definition: TypeLoc.h:208
ObjCPropertyImplDecl * FindPropertyImplDecl(IdentifierInfo *propertyId) const
Definition: DeclObjC.cpp:1960
Enable inferring NS_DESIGNATED_INITIALIZER for ObjC methods.
#define false
Definition: stdbool.h:33
static void append_attr(std::string &PropertyString, const char *attr, bool &LParenAdded)
Definition: ObjCMT.cpp:393
const char * getName() const
Definition: FileManager.h:84
Encodes a location in the source. The SourceManager can decode this to get at the full include stack...
enumerator_range enumerators() const
Definition: Decl.h:3087
IdentifierInfo & get(StringRef Name)
Return the identifier token info for the specified named identifier.
unsigned getNumParams() const
Definition: Decl.cpp:2651
const Type * getTypePtr() const
Definition: Type.h:5016
static unsigned getHashValue(const EditEntry &Val)
Definition: ObjCMT.cpp:2072
Options for controlling the compiler diagnostics engine.
static void MigrateBlockOrFunctionPointerTypeVariable(std::string &PropertyString, const std::string &TypeString, const char *name)
Definition: ObjCMT.cpp:405
bool isCharRange() const
StringRef getNameForSlot(unsigned argIndex) const
Retrieve the name at a given position in the selector.
Records preprocessor conditional directive regions and allows querying in which region source locatio...
IdentifierTable & getIdentifierTable()
Definition: Preprocessor.h:685
static bool ClassImplementsAllMethodsAndProperties(ASTContext &Ctx, const ObjCImplementationDecl *ImpDecl, const ObjCInterfaceDecl *IDecl, ObjCProtocolDecl *Protocol)
Definition: ObjCMT.cpp:609
Cached information about one file (either on disk or in the virtual file system). ...
Definition: FileManager.h:53
Stmt * getBody() const override
Retrieve the body of this method, if it has one.
Definition: DeclObjC.cpp:731
bool InsertText(SourceLocation Loc, StringRef Str, bool InsertAfter=true, bool indentNewLines=false)
Definition: Rewriter.cpp:240
bool isObjCBuiltinType() const
Definition: Type.h:5343
annotate property with NS_RETURNS_INNER_POINTER
Enable migration to modern ObjC readonly property.
ObjCInterfaceDecl * lookupInheritedClass(const IdentifierInfo *ICName)
Definition: DeclObjC.cpp:569
static bool AvailabilityAttrsMatch(Attr *At1, Attr *At2)
Definition: ObjCMT.cpp:1101
const ObjCInterfaceDecl * getClassInterface() const
Definition: DeclObjC.h:2093
Enable migration to modern ObjC subscripting.
bool isPropertyAccessor() const
Definition: DeclObjC.h:426
Represents one property declaration in an Objective-C interface.
Definition: DeclObjC.h:2424
QualType getReturnType() const
Definition: DeclObjC.h:330
SourceLocation getBegin() const
lookup_result lookup(DeclarationName Name) const
Definition: DeclBase.cpp:1339
unsigned getCustomDiagID(Level L, const char(&FormatString)[N])
Return an ID for a diagnostic with the specified format string and level.
Definition: Diagnostic.h:602
static StringRef GetUnsignedName(StringRef NSIntegerName)
Definition: ObjCMT.cpp:705
QualType getType() const
Return the type wrapped by this type source info.
Definition: Decl.h:68
QualType getObjCInstanceType()
Retrieve the Objective-C "instancetype" type, if already known; otherwise, returns a NULL type;...
Definition: ASTContext.h:1386
QualType getPointeeType() const
Definition: Type.h:2139
void setIgnoreAllWarnings(bool Val)
When set to true, any unmapped warnings are ignored.
Definition: Diagnostic.h:440
Expr * getInstanceReceiver()
Returns the object expression (receiver) for an instance message, or null for a message that is not a...
Definition: ExprObjC.h:1152
ast_type_traits::DynTypedNode Node
An opaque identifier used by SourceManager which refers to a source file (MemoryBuffer) along with it...
ASTContext & getASTContext() const
Definition: NSAPI.h:28
instmeth_range instance_methods() const
Definition: DeclObjC.h:742
SourceLocation getSelectorLoc(unsigned Index) const
Definition: ExprObjC.h:1314
prop_range properties() const
Definition: DeclObjC.h:714
ObjCMethodDecl * getInstanceMethod(Selector Sel, bool AllowHidden=false) const
Definition: DeclObjC.h:770
Enable migration to NS_ENUM/NS_OPTIONS macros.
static void rewriteToNSMacroDecl(ASTContext &Ctx, const EnumDecl *EnumDcl, const TypedefDecl *TypedefDcl, const NSAPI &NS, edit::Commit &commit, bool IsNSIntegerType)
Definition: ObjCMT.cpp:769
FileManager & getFileManager() const
Return the current file manager to the caller.
Used for handling and querying diagnostic IDs.
Selector getSelector() const
Definition: DeclObjC.h:328
bool hasAttrs() const
Definition: DeclBase.h:427
CanQualType getCanonicalType(QualType T) const
Return the canonical (structural) type corresponding to the specified potentially non-canonical type ...
Definition: ASTContext.h:1855
param_iterator param_end()
Definition: Decl.h:1948
A frontend action which simply wraps some other runtime-specified frontend action.
bool isLiteral() const
Return true if this is a "literal", like a numeric constant, string, etc.
Definition: Token.h:113
static bool IsVoidStarType(QualType Ty)
Definition: ObjCMT.cpp:1377
raw_ostream & write(raw_ostream &Stream) const
Write to Stream the result of applying all changes to the original buffer. Note that it isn't safe to...
Definition: Rewriter.cpp:27
const T * getAs() const
Definition: Type.h:5555
bool isInvalid() const
QualType getIntegerType() const
Definition: Decl.h:3115
std::map< FileID, RewriteBuffer >::iterator buffer_iterator
Definition: Rewriter.h:53
bool hasBody() const override
Determine whether this method has a body.
Definition: DeclObjC.h:486
bool commit(const Commit &commit)
static bool isEqual(const EditEntry &LHS, const EditEntry &RHS)
Definition: ObjCMT.cpp:2080
const ObjCProtocolList & getReferencedProtocols() const
Definition: DeclObjC.h:1014
unsigned getNumArgs() const
Return the number of actual arguments in this message, not counting the receiver. ...
Definition: ExprObjC.h:1274
bool getFileRemappingsFromFileList(std::vector< std::pair< std::string, std::string > > &remap, ArrayRef< StringRef > remapFiles, DiagnosticConsumer *DiagClient)
Get the set of file remappings from a list of files with remapping info.
Definition: ObjCMT.cpp:2236
SourceManager & getSourceManager()
Definition: ASTContext.h:494
Keeps track of options that affect how file operations are performed.
X
Definition: SemaDecl.cpp:11429
Reading or writing from this object requires a barrier call.
Definition: Type.h:144
bool initFromDisk(StringRef outputDir, DiagnosticsEngine &Diag, bool ignoreIfFilesChanged)
Enable converting setter/getter expressions to property-dot syntx.
QualType getUnqualifiedType() const
Retrieve the unqualified variant of the given type, removing as little sugar as possible.
Definition: Type.h:5096
bool isObjCObjectPointerType() const
Definition: Type.h:5304
static LLVM_READONLY char toLowercase(char c)
Definition: CharInfo.h:165
bool isImplicit() const
Indicates whether the message send was implicitly generated by the implementation. If false, it was written explicitly in the source code.
Definition: ExprObjC.h:1129
static bool versionsMatch(const VersionTuple &X, const VersionTuple &Y)
Check whether the two versions match.
Definition: ObjCMT.cpp:1092
static void rewriteToObjCProperty(const ObjCMethodDecl *Getter, const ObjCMethodDecl *Setter, const NSAPI &NS, edit::Commit &commit, unsigned LengthOfPrefix, bool Atomic, bool UseNsIosOnlyMacro, bool AvailabilityArgsMatch)
Definition: ObjCMT.cpp:462
ObjCInterfaceDecl * getSuperClass() const
Definition: DeclObjC.cpp:271
bool insertBefore(SourceLocation loc, StringRef text)
Definition: Commit.h:73
static Decl::Kind getKind(const Decl *D)
Definition: DeclBase.cpp:739
TranslationUnitDecl - The top declaration context.
Definition: Decl.h:78
prefer 'atomic' property over 'nonatomic'.
unsigned getLength() const
Definition: Token.h:127
SourceLocation getLocForStartOfFile(FileID FID) const
Return the source location corresponding to the first byte of the specified file. ...
static LLVM_READONLY bool isIdentifierHead(unsigned char c, bool AllowDollar=false)
Definition: CharInfo.h:49
use NS_NONATOMIC_IOSONLY for property 'atomic' attribute
A trivial tuple used to represent a source range.
SourceLocation getLocation() const
Definition: DeclBase.h:372
std::pair< FileID, unsigned > getDecomposedLoc(SourceLocation Loc) const
Decompose the specified location into a raw FileID + Offset pair.
bool isNull() const
isNull - Return true if this QualType doesn't point to a type yet.
Definition: Type.h:633
TypeSourceInfo * getTypeSourceInfo() const
Definition: Decl.h:2611
ReceiverKind getReceiverKind() const
Determine the kind of receiver that this message is being sent to.
Definition: ExprObjC.h:1133
void addPPCallbacks(std::unique_ptr< PPCallbacks > C)
Definition: Preprocessor.h:773
This class handles loading and caching of source files into memory.
Attr - This represents one attribute.
Definition: Attr.h:44
static bool rewriteToObjCInterfaceDecl(const ObjCInterfaceDecl *IDecl, llvm::SmallVectorImpl< ObjCProtocolDecl * > &ConformingProtocols, const NSAPI &NS, edit::Commit &commit)
Definition: ObjCMT.cpp:673
bool isDeprecated(std::string *Message=nullptr) const
Determine whether this declaration is marked 'deprecated'.
Definition: DeclBase.h:593
Engages in a tight little dance with the lexer to efficiently preprocess tokens.
Definition: Preprocessor.h:96
Qualifiers getQualifiers() const
Retrieve the set of qualifiers applied to this type.
Definition: Type.h:5043
bool isPointerType() const
Definition: Type.h:5232