| //===--- ObjCMT.cpp - ObjC Migrate Tool -----------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "Transforms.h" |
| #include "clang/ARCMigrate/ARCMTActions.h" |
| #include "clang/AST/ASTConsumer.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/AST/NSAPI.h" |
| #include "clang/AST/ParentMap.h" |
| #include "clang/AST/RecursiveASTVisitor.h" |
| #include "clang/Basic/FileManager.h" |
| #include "clang/Edit/Commit.h" |
| #include "clang/Edit/EditedSource.h" |
| #include "clang/Edit/EditsReceiver.h" |
| #include "clang/Edit/Rewriters.h" |
| #include "clang/Frontend/CompilerInstance.h" |
| #include "clang/Frontend/MultiplexConsumer.h" |
| #include "clang/Lex/PPConditionalDirectiveRecord.h" |
| #include "clang/Lex/Preprocessor.h" |
| #include "clang/Rewrite/Core/Rewriter.h" |
| #include "llvm/ADT/SmallString.h" |
| |
| using namespace clang; |
| using namespace arcmt; |
| |
| namespace { |
| |
| class ObjCMigrateASTConsumer : public ASTConsumer { |
| void migrateDecl(Decl *D); |
| void migrateObjCInterfaceDecl(ASTContext &Ctx, ObjCInterfaceDecl *D); |
| void migrateProtocolConformance(ASTContext &Ctx, |
| const ObjCImplementationDecl *ImpDecl); |
| void migrateNSEnumDecl(ASTContext &Ctx, const EnumDecl *EnumDcl, |
| const TypedefDecl *TypedefDcl); |
| |
| public: |
| std::string MigrateDir; |
| bool MigrateLiterals; |
| bool MigrateSubscripting; |
| bool MigrateProperty; |
| OwningPtr<NSAPI> NSAPIObj; |
| OwningPtr<edit::EditedSource> Editor; |
| FileRemapper &Remapper; |
| FileManager &FileMgr; |
| const PPConditionalDirectiveRecord *PPRec; |
| Preprocessor &PP; |
| bool IsOutputFile; |
| llvm::SmallPtrSet<ObjCProtocolDecl *, 32> ObjCProtocolDecls; |
| |
| ObjCMigrateASTConsumer(StringRef migrateDir, |
| bool migrateLiterals, |
| bool migrateSubscripting, |
| bool migrateProperty, |
| FileRemapper &remapper, |
| FileManager &fileMgr, |
| const PPConditionalDirectiveRecord *PPRec, |
| Preprocessor &PP, |
| bool isOutputFile = false) |
| : MigrateDir(migrateDir), |
| MigrateLiterals(migrateLiterals), |
| MigrateSubscripting(migrateSubscripting), |
| MigrateProperty(migrateProperty), |
| Remapper(remapper), FileMgr(fileMgr), PPRec(PPRec), PP(PP), |
| IsOutputFile(isOutputFile) { } |
| |
| protected: |
| virtual void Initialize(ASTContext &Context) { |
| NSAPIObj.reset(new NSAPI(Context)); |
| Editor.reset(new edit::EditedSource(Context.getSourceManager(), |
| Context.getLangOpts(), |
| PPRec)); |
| } |
| |
| virtual bool HandleTopLevelDecl(DeclGroupRef DG) { |
| for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I) |
| migrateDecl(*I); |
| return true; |
| } |
| virtual void HandleInterestingDecl(DeclGroupRef DG) { |
| // Ignore decls from the PCH. |
| } |
| virtual void HandleTopLevelDeclInObjCContainer(DeclGroupRef DG) { |
| ObjCMigrateASTConsumer::HandleTopLevelDecl(DG); |
| } |
| |
| virtual void HandleTranslationUnit(ASTContext &Ctx); |
| }; |
| |
| } |
| |
| ObjCMigrateAction::ObjCMigrateAction(FrontendAction *WrappedAction, |
| StringRef migrateDir, |
| bool migrateLiterals, |
| bool migrateSubscripting, |
| bool migrateProperty) |
| : WrapperFrontendAction(WrappedAction), MigrateDir(migrateDir), |
| MigrateLiterals(migrateLiterals), MigrateSubscripting(migrateSubscripting), |
| MigrateProperty(migrateProperty), |
| CompInst(0) { |
| if (MigrateDir.empty()) |
| MigrateDir = "."; // user current directory if none is given. |
| } |
| |
| ASTConsumer *ObjCMigrateAction::CreateASTConsumer(CompilerInstance &CI, |
| StringRef InFile) { |
| PPConditionalDirectiveRecord * |
| PPRec = new PPConditionalDirectiveRecord(CompInst->getSourceManager()); |
| CompInst->getPreprocessor().addPPCallbacks(PPRec); |
| ASTConsumer * |
| WrappedConsumer = WrapperFrontendAction::CreateASTConsumer(CI, InFile); |
| ASTConsumer *MTConsumer = new ObjCMigrateASTConsumer(MigrateDir, |
| MigrateLiterals, |
| MigrateSubscripting, |
| MigrateProperty, |
| Remapper, |
| CompInst->getFileManager(), |
| PPRec, |
| CompInst->getPreprocessor()); |
| ASTConsumer *Consumers[] = { MTConsumer, WrappedConsumer }; |
| return new MultiplexConsumer(Consumers); |
| } |
| |
| bool ObjCMigrateAction::BeginInvocation(CompilerInstance &CI) { |
| Remapper.initFromDisk(MigrateDir, CI.getDiagnostics(), |
| /*ignoreIfFilesChanges=*/true); |
| CompInst = &CI; |
| CI.getDiagnostics().setIgnoreAllWarnings(true); |
| return true; |
| } |
| |
| namespace { |
| class ObjCMigrator : public RecursiveASTVisitor<ObjCMigrator> { |
| ObjCMigrateASTConsumer &Consumer; |
| ParentMap &PMap; |
| |
| public: |
| ObjCMigrator(ObjCMigrateASTConsumer &consumer, ParentMap &PMap) |
| : Consumer(consumer), PMap(PMap) { } |
| |
| bool shouldVisitTemplateInstantiations() const { return false; } |
| bool shouldWalkTypesOfTypeLocs() const { return false; } |
| |
| bool VisitObjCMessageExpr(ObjCMessageExpr *E) { |
| if (Consumer.MigrateLiterals) { |
| edit::Commit commit(*Consumer.Editor); |
| edit::rewriteToObjCLiteralSyntax(E, *Consumer.NSAPIObj, commit, &PMap); |
| Consumer.Editor->commit(commit); |
| } |
| |
| if (Consumer.MigrateSubscripting) { |
| edit::Commit commit(*Consumer.Editor); |
| edit::rewriteToObjCSubscriptSyntax(E, *Consumer.NSAPIObj, commit); |
| Consumer.Editor->commit(commit); |
| } |
| |
| return true; |
| } |
| |
| bool TraverseObjCMessageExpr(ObjCMessageExpr *E) { |
| // Do depth first; we want to rewrite the subexpressions first so that if |
| // we have to move expressions we will move them already rewritten. |
| for (Stmt::child_range range = E->children(); range; ++range) |
| if (!TraverseStmt(*range)) |
| return false; |
| |
| return WalkUpFromObjCMessageExpr(E); |
| } |
| }; |
| |
| class BodyMigrator : public RecursiveASTVisitor<BodyMigrator> { |
| ObjCMigrateASTConsumer &Consumer; |
| OwningPtr<ParentMap> PMap; |
| |
| public: |
| BodyMigrator(ObjCMigrateASTConsumer &consumer) : Consumer(consumer) { } |
| |
| bool shouldVisitTemplateInstantiations() const { return false; } |
| bool shouldWalkTypesOfTypeLocs() const { return false; } |
| |
| bool TraverseStmt(Stmt *S) { |
| PMap.reset(new ParentMap(S)); |
| ObjCMigrator(Consumer, *PMap).TraverseStmt(S); |
| return true; |
| } |
| }; |
| } |
| |
| void ObjCMigrateASTConsumer::migrateDecl(Decl *D) { |
| if (!D) |
| return; |
| if (isa<ObjCMethodDecl>(D)) |
| return; // Wait for the ObjC container declaration. |
| |
| BodyMigrator(*this).TraverseDecl(D); |
| } |
| |
| static bool rewriteToObjCProperty(const ObjCMethodDecl *Getter, |
| const ObjCMethodDecl *Setter, |
| const NSAPI &NS, edit::Commit &commit) { |
| ASTContext &Context = NS.getASTContext(); |
| std::string PropertyString = "@property"; |
| const ParmVarDecl *argDecl = *Setter->param_begin(); |
| QualType ArgType = Context.getCanonicalType(argDecl->getType()); |
| Qualifiers::ObjCLifetime propertyLifetime = ArgType.getObjCLifetime(); |
| |
| if (ArgType->isObjCRetainableType() && |
| propertyLifetime == Qualifiers::OCL_Strong) { |
| if (const ObjCObjectPointerType *ObjPtrTy = |
| ArgType->getAs<ObjCObjectPointerType>()) { |
| ObjCInterfaceDecl *IDecl = ObjPtrTy->getObjectType()->getInterface(); |
| if (IDecl && |
| IDecl->lookupNestedProtocol(&Context.Idents.get("NSCopying"))) |
| PropertyString += "(copy)"; |
| } |
| } |
| else if (propertyLifetime == Qualifiers::OCL_Weak) |
| // TODO. More precise determination of 'weak' attribute requires |
| // looking into setter's implementation for backing weak ivar. |
| PropertyString += "(weak)"; |
| else |
| PropertyString += "(unsafe_unretained)"; |
| |
| // strip off any ARC lifetime qualifier. |
| QualType CanResultTy = Context.getCanonicalType(Getter->getResultType()); |
| if (CanResultTy.getQualifiers().hasObjCLifetime()) { |
| Qualifiers Qs = CanResultTy.getQualifiers(); |
| Qs.removeObjCLifetime(); |
| CanResultTy = Context.getQualifiedType(CanResultTy.getUnqualifiedType(), Qs); |
| } |
| PropertyString += " "; |
| PropertyString += CanResultTy.getAsString(Context.getPrintingPolicy()); |
| PropertyString += " "; |
| PropertyString += Getter->getNameAsString(); |
| commit.replace(CharSourceRange::getCharRange(Getter->getLocStart(), |
| Getter->getDeclaratorEndLoc()), |
| PropertyString); |
| SourceLocation EndLoc = Setter->getDeclaratorEndLoc(); |
| // Get location past ';' |
| EndLoc = EndLoc.getLocWithOffset(1); |
| commit.remove(CharSourceRange::getCharRange(Setter->getLocStart(), EndLoc)); |
| return true; |
| } |
| |
| void ObjCMigrateASTConsumer::migrateObjCInterfaceDecl(ASTContext &Ctx, |
| ObjCInterfaceDecl *D) { |
| for (ObjCContainerDecl::method_iterator M = D->meth_begin(), MEnd = D->meth_end(); |
| M != MEnd; ++M) { |
| ObjCMethodDecl *Method = (*M); |
| if (Method->isPropertyAccessor() || Method->param_size() != 0) |
| continue; |
| // Is this method candidate to be a getter? |
| QualType GRT = Method->getResultType(); |
| if (GRT->isVoidType()) |
| continue; |
| // FIXME. Don't know what todo with attributes, skip for now. |
| if (Method->hasAttrs()) |
| continue; |
| |
| Selector GetterSelector = Method->getSelector(); |
| IdentifierInfo *getterName = GetterSelector.getIdentifierInfoForSlot(0); |
| Selector SetterSelector = |
| SelectorTable::constructSetterSelector(PP.getIdentifierTable(), |
| PP.getSelectorTable(), |
| getterName); |
| if (ObjCMethodDecl *SetterMethod = D->lookupMethod(SetterSelector, true)) { |
| // Is this a valid setter, matching the target getter? |
| QualType SRT = SetterMethod->getResultType(); |
| if (!SRT->isVoidType()) |
| continue; |
| const ParmVarDecl *argDecl = *SetterMethod->param_begin(); |
| QualType ArgType = argDecl->getType(); |
| if (!Ctx.hasSameUnqualifiedType(ArgType, GRT) || |
| SetterMethod->hasAttrs()) |
| continue; |
| edit::Commit commit(*Editor); |
| rewriteToObjCProperty(Method, SetterMethod, *NSAPIObj, commit); |
| Editor->commit(commit); |
| } |
| } |
| } |
| |
| static bool |
| ClassImplementsAllMethodsAndProperties(ASTContext &Ctx, |
| const ObjCImplementationDecl *ImpDecl, |
| const ObjCInterfaceDecl *IDecl, |
| ObjCProtocolDecl *Protocol) { |
| // In auto-synthesis, protocol properties are not synthesized. So, |
| // a conforming protocol must have its required properties declared |
| // in class interface. |
| bool HasAtleastOneRequiredProperty = false; |
| if (const ObjCProtocolDecl *PDecl = Protocol->getDefinition()) |
| for (ObjCProtocolDecl::prop_iterator P = PDecl->prop_begin(), |
| E = PDecl->prop_end(); P != E; ++P) { |
| ObjCPropertyDecl *Property = *P; |
| if (Property->getPropertyImplementation() == ObjCPropertyDecl::Optional) |
| continue; |
| HasAtleastOneRequiredProperty = true; |
| DeclContext::lookup_const_result R = IDecl->lookup(Property->getDeclName()); |
| if (R.size() == 0) { |
| // Relax the rule and look into class's implementation for a synthesize |
| // or dynamic declaration. Class is implementing a property coming from |
| // another protocol. This still makes the target protocol as conforming. |
| if (!ImpDecl->FindPropertyImplDecl( |
| Property->getDeclName().getAsIdentifierInfo())) |
| return false; |
| } |
| else if (ObjCPropertyDecl *ClassProperty = dyn_cast<ObjCPropertyDecl>(R[0])) { |
| if ((ClassProperty->getPropertyAttributes() |
| != Property->getPropertyAttributes()) || |
| !Ctx.hasSameType(ClassProperty->getType(), Property->getType())) |
| return false; |
| } |
| else |
| return false; |
| } |
| |
| // At this point, all required properties in this protocol conform to those |
| // declared in the class. |
| // Check that class implements the required methods of the protocol too. |
| bool HasAtleastOneRequiredMethod = false; |
| if (const ObjCProtocolDecl *PDecl = Protocol->getDefinition()) { |
| if (PDecl->meth_begin() == PDecl->meth_end()) |
| return HasAtleastOneRequiredProperty; |
| for (ObjCContainerDecl::method_iterator M = PDecl->meth_begin(), |
| MEnd = PDecl->meth_end(); M != MEnd; ++M) { |
| ObjCMethodDecl *MD = (*M); |
| if (MD->isImplicit()) |
| continue; |
| if (MD->getImplementationControl() == ObjCMethodDecl::Optional) |
| continue; |
| DeclContext::lookup_const_result R = ImpDecl->lookup(MD->getDeclName()); |
| if (R.size() == 0) |
| return false; |
| bool match = false; |
| HasAtleastOneRequiredMethod = true; |
| for (unsigned I = 0, N = R.size(); I != N; ++I) |
| if (ObjCMethodDecl *ImpMD = dyn_cast<ObjCMethodDecl>(R[0])) |
| if (Ctx.ObjCMethodsAreEqual(MD, ImpMD)) { |
| match = true; |
| break; |
| } |
| if (!match) |
| return false; |
| } |
| } |
| if (HasAtleastOneRequiredProperty || HasAtleastOneRequiredMethod) |
| return true; |
| return false; |
| } |
| |
| static bool rewriteToObjCInterfaceDecl(const ObjCInterfaceDecl *IDecl, |
| llvm::SmallVectorImpl<ObjCProtocolDecl*> &ConformingProtocols, |
| const NSAPI &NS, edit::Commit &commit) { |
| const ObjCList<ObjCProtocolDecl> &Protocols = IDecl->getReferencedProtocols(); |
| std::string ClassString; |
| SourceLocation EndLoc = |
| IDecl->getSuperClass() ? IDecl->getSuperClassLoc() : IDecl->getLocation(); |
| |
| if (Protocols.empty()) { |
| ClassString = '<'; |
| for (unsigned i = 0, e = ConformingProtocols.size(); i != e; i++) { |
| ClassString += ConformingProtocols[i]->getNameAsString(); |
| if (i != (e-1)) |
| ClassString += ", "; |
| } |
| ClassString += "> "; |
| } |
| else { |
| ClassString = ", "; |
| for (unsigned i = 0, e = ConformingProtocols.size(); i != e; i++) { |
| ClassString += ConformingProtocols[i]->getNameAsString(); |
| if (i != (e-1)) |
| ClassString += ", "; |
| } |
| ObjCInterfaceDecl::protocol_loc_iterator PL = IDecl->protocol_loc_end() - 1; |
| EndLoc = *PL; |
| } |
| |
| commit.insertAfterToken(EndLoc, ClassString); |
| return true; |
| } |
| |
| static bool rewriteToNSEnumDecl(const EnumDecl *EnumDcl, |
| const TypedefDecl *TypedefDcl, |
| const NSAPI &NS, edit::Commit &commit, |
| bool IsNSIntegerType) { |
| std::string ClassString = |
| IsNSIntegerType ? "typedef NS_ENUM(NSInteger, " : "typedef NS_OPTIONS(NSUInteger, "; |
| ClassString += TypedefDcl->getIdentifier()->getName(); |
| ClassString += ')'; |
| SourceRange R(EnumDcl->getLocStart(), EnumDcl->getLocStart()); |
| commit.replace(R, ClassString); |
| SourceLocation EndOfTypedefLoc = TypedefDcl->getLocEnd(); |
| EndOfTypedefLoc = trans::findLocationAfterSemi(EndOfTypedefLoc, NS.getASTContext()); |
| if (!EndOfTypedefLoc.isInvalid()) { |
| commit.remove(SourceRange(TypedefDcl->getLocStart(), EndOfTypedefLoc)); |
| return true; |
| } |
| return false; |
| } |
| |
| static bool rewriteToNSMacroDecl(const EnumDecl *EnumDcl, |
| const TypedefDecl *TypedefDcl, |
| const NSAPI &NS, edit::Commit &commit, |
| bool IsNSIntegerType) { |
| std::string ClassString = |
| IsNSIntegerType ? "NS_ENUM(NSInteger, " : "NS_OPTIONS(NSUInteger, "; |
| ClassString += TypedefDcl->getIdentifier()->getName(); |
| ClassString += ')'; |
| SourceRange R(EnumDcl->getLocStart(), EnumDcl->getLocStart()); |
| commit.replace(R, ClassString); |
| SourceLocation TypedefLoc = TypedefDcl->getLocEnd(); |
| commit.remove(SourceRange(TypedefLoc, TypedefLoc)); |
| return true; |
| } |
| |
| static bool UseNSOptionsMacro(ASTContext &Ctx, |
| const EnumDecl *EnumDcl) { |
| bool PowerOfTwo = true; |
| for (EnumDecl::enumerator_iterator EI = EnumDcl->enumerator_begin(), |
| EE = EnumDcl->enumerator_end(); EI != EE; ++EI) { |
| EnumConstantDecl *Enumerator = (*EI); |
| const Expr *InitExpr = Enumerator->getInitExpr(); |
| if (!InitExpr) { |
| PowerOfTwo = false; |
| continue; |
| } |
| InitExpr = InitExpr->IgnoreImpCasts(); |
| if (const BinaryOperator *BO = dyn_cast<BinaryOperator>(InitExpr)) |
| if (BO->isShiftOp() || BO->isBitwiseOp()) |
| return true; |
| |
| uint64_t EnumVal = Enumerator->getInitVal().getZExtValue(); |
| if (PowerOfTwo && EnumVal && !llvm::isPowerOf2_64(EnumVal)) |
| PowerOfTwo = false; |
| } |
| return PowerOfTwo; |
| } |
| |
| void ObjCMigrateASTConsumer::migrateProtocolConformance(ASTContext &Ctx, |
| const ObjCImplementationDecl *ImpDecl) { |
| const ObjCInterfaceDecl *IDecl = ImpDecl->getClassInterface(); |
| if (!IDecl || ObjCProtocolDecls.empty()) |
| return; |
| // Find all implicit conforming protocols for this class |
| // and make them explicit. |
| llvm::SmallPtrSet<ObjCProtocolDecl *, 8> ExplicitProtocols; |
| Ctx.CollectInheritedProtocols(IDecl, ExplicitProtocols); |
| llvm::SmallVector<ObjCProtocolDecl *, 8> PotentialImplicitProtocols; |
| |
| for (llvm::SmallPtrSet<ObjCProtocolDecl*, 32>::iterator I = |
| ObjCProtocolDecls.begin(), |
| E = ObjCProtocolDecls.end(); I != E; ++I) |
| if (!ExplicitProtocols.count(*I)) |
| PotentialImplicitProtocols.push_back(*I); |
| |
| if (PotentialImplicitProtocols.empty()) |
| return; |
| |
| // go through list of non-optional methods and properties in each protocol |
| // in the PotentialImplicitProtocols list. If class implements every one of the |
| // methods and properties, then this class conforms to this protocol. |
| llvm::SmallVector<ObjCProtocolDecl*, 8> ConformingProtocols; |
| for (unsigned i = 0, e = PotentialImplicitProtocols.size(); i != e; i++) |
| if (ClassImplementsAllMethodsAndProperties(Ctx, ImpDecl, IDecl, |
| PotentialImplicitProtocols[i])) |
| ConformingProtocols.push_back(PotentialImplicitProtocols[i]); |
| |
| if (ConformingProtocols.empty()) |
| return; |
| |
| // Further reduce number of conforming protocols. If protocol P1 is in the list |
| // protocol P2 (P2<P1>), No need to include P1. |
| llvm::SmallVector<ObjCProtocolDecl*, 8> MinimalConformingProtocols; |
| for (unsigned i = 0, e = ConformingProtocols.size(); i != e; i++) { |
| bool DropIt = false; |
| ObjCProtocolDecl *TargetPDecl = ConformingProtocols[i]; |
| for (unsigned i1 = 0, e1 = ConformingProtocols.size(); i1 != e1; i1++) { |
| ObjCProtocolDecl *PDecl = ConformingProtocols[i1]; |
| if (PDecl == TargetPDecl) |
| continue; |
| if (PDecl->lookupProtocolNamed( |
| TargetPDecl->getDeclName().getAsIdentifierInfo())) { |
| DropIt = true; |
| break; |
| } |
| } |
| if (!DropIt) |
| MinimalConformingProtocols.push_back(TargetPDecl); |
| } |
| edit::Commit commit(*Editor); |
| rewriteToObjCInterfaceDecl(IDecl, MinimalConformingProtocols, |
| *NSAPIObj, commit); |
| Editor->commit(commit); |
| } |
| |
| void ObjCMigrateASTConsumer::migrateNSEnumDecl(ASTContext &Ctx, |
| const EnumDecl *EnumDcl, |
| const TypedefDecl *TypedefDcl) { |
| if (!EnumDcl->isCompleteDefinition() || EnumDcl->getIdentifier() || |
| !TypedefDcl->getIdentifier()) |
| return; |
| |
| QualType qt = TypedefDcl->getTypeSourceInfo()->getType(); |
| bool IsNSIntegerType = NSAPIObj->isObjCNSIntegerType(qt); |
| bool IsNSUIntegerType = !IsNSIntegerType && NSAPIObj->isObjCNSUIntegerType(qt); |
| |
| if (!IsNSIntegerType && !IsNSUIntegerType) { |
| // Also check for typedef enum {...} TD; |
| if (const EnumType *EnumTy = qt->getAs<EnumType>()) { |
| if (EnumTy->getDecl() == EnumDcl) { |
| bool NSOptions = UseNSOptionsMacro(Ctx, EnumDcl); |
| if (NSOptions) { |
| if (!Ctx.Idents.get("NS_OPTIONS").hasMacroDefinition()) |
| return; |
| } |
| else if (!Ctx.Idents.get("NS_ENUM").hasMacroDefinition()) |
| return; |
| edit::Commit commit(*Editor); |
| rewriteToNSMacroDecl(EnumDcl, TypedefDcl, *NSAPIObj, commit, !NSOptions); |
| Editor->commit(commit); |
| } |
| } |
| return; |
| } |
| if (IsNSIntegerType && UseNSOptionsMacro(Ctx, EnumDcl)) { |
| // We may still use NS_OPTIONS based on what we find in the enumertor list. |
| IsNSIntegerType = false; |
| IsNSUIntegerType = true; |
| } |
| |
| // NS_ENUM must be available. |
| if (IsNSIntegerType && !Ctx.Idents.get("NS_ENUM").hasMacroDefinition()) |
| return; |
| // NS_OPTIONS must be available. |
| if (IsNSUIntegerType && !Ctx.Idents.get("NS_OPTIONS").hasMacroDefinition()) |
| return; |
| edit::Commit commit(*Editor); |
| rewriteToNSEnumDecl(EnumDcl, TypedefDcl, *NSAPIObj, commit, IsNSIntegerType); |
| Editor->commit(commit); |
| } |
| |
| namespace { |
| |
| class RewritesReceiver : public edit::EditsReceiver { |
| Rewriter &Rewrite; |
| |
| public: |
| RewritesReceiver(Rewriter &Rewrite) : Rewrite(Rewrite) { } |
| |
| virtual void insert(SourceLocation loc, StringRef text) { |
| Rewrite.InsertText(loc, text); |
| } |
| virtual void replace(CharSourceRange range, StringRef text) { |
| Rewrite.ReplaceText(range.getBegin(), Rewrite.getRangeSize(range), text); |
| } |
| }; |
| |
| } |
| |
| void ObjCMigrateASTConsumer::HandleTranslationUnit(ASTContext &Ctx) { |
| |
| TranslationUnitDecl *TU = Ctx.getTranslationUnitDecl(); |
| if (MigrateProperty) |
| for (DeclContext::decl_iterator D = TU->decls_begin(), DEnd = TU->decls_end(); |
| D != DEnd; ++D) { |
| if (ObjCInterfaceDecl *CDecl = dyn_cast<ObjCInterfaceDecl>(*D)) |
| migrateObjCInterfaceDecl(Ctx, CDecl); |
| else if (ObjCProtocolDecl *PDecl = dyn_cast<ObjCProtocolDecl>(*D)) |
| ObjCProtocolDecls.insert(PDecl); |
| else if (const ObjCImplementationDecl *ImpDecl = |
| dyn_cast<ObjCImplementationDecl>(*D)) |
| migrateProtocolConformance(Ctx, ImpDecl); |
| else if (const EnumDecl *ED = dyn_cast<EnumDecl>(*D)) { |
| DeclContext::decl_iterator N = D; |
| ++N; |
| if (N != DEnd) |
| if (const TypedefDecl *TD = dyn_cast<TypedefDecl>(*N)) |
| migrateNSEnumDecl(Ctx, ED, TD); |
| } |
| } |
| |
| Rewriter rewriter(Ctx.getSourceManager(), Ctx.getLangOpts()); |
| RewritesReceiver Rec(rewriter); |
| Editor->applyRewrites(Rec); |
| |
| for (Rewriter::buffer_iterator |
| I = rewriter.buffer_begin(), E = rewriter.buffer_end(); I != E; ++I) { |
| FileID FID = I->first; |
| RewriteBuffer &buf = I->second; |
| const FileEntry *file = Ctx.getSourceManager().getFileEntryForID(FID); |
| assert(file); |
| SmallString<512> newText; |
| llvm::raw_svector_ostream vecOS(newText); |
| buf.write(vecOS); |
| vecOS.flush(); |
| llvm::MemoryBuffer *memBuf = llvm::MemoryBuffer::getMemBufferCopy( |
| StringRef(newText.data(), newText.size()), file->getName()); |
| SmallString<64> filePath(file->getName()); |
| FileMgr.FixupRelativePath(filePath); |
| Remapper.remap(filePath.str(), memBuf); |
| } |
| |
| if (IsOutputFile) { |
| Remapper.flushToFile(MigrateDir, Ctx.getDiagnostics()); |
| } else { |
| Remapper.flushToDisk(MigrateDir, Ctx.getDiagnostics()); |
| } |
| } |
| |
| bool MigrateSourceAction::BeginInvocation(CompilerInstance &CI) { |
| CI.getDiagnostics().setIgnoreAllWarnings(true); |
| return true; |
| } |
| |
| ASTConsumer *MigrateSourceAction::CreateASTConsumer(CompilerInstance &CI, |
| StringRef InFile) { |
| PPConditionalDirectiveRecord * |
| PPRec = new PPConditionalDirectiveRecord(CI.getSourceManager()); |
| CI.getPreprocessor().addPPCallbacks(PPRec); |
| return new ObjCMigrateASTConsumer(CI.getFrontendOpts().OutputFile, |
| /*MigrateLiterals=*/true, |
| /*MigrateSubscripting=*/true, |
| /*MigrateProperty*/true, |
| Remapper, |
| CI.getFileManager(), |
| PPRec, |
| CI.getPreprocessor(), |
| /*isOutputFile=*/true); |
| } |
