2012-03-07 04:06:33 +08:00
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//===--- ObjCMT.cpp - ObjC Migrate Tool -----------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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2013-07-19 06:17:33 +08:00
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#include "Transforms.h"
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2012-03-07 04:06:33 +08:00
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#include "clang/ARCMigrate/ARCMTActions.h"
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2012-12-04 17:13:33 +08:00
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#include "clang/AST/ASTConsumer.h"
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2012-07-05 04:19:54 +08:00
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#include "clang/AST/ASTContext.h"
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2012-03-07 04:06:33 +08:00
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#include "clang/AST/NSAPI.h"
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2013-01-17 07:54:48 +08:00
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#include "clang/AST/ParentMap.h"
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2012-12-04 17:13:33 +08:00
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#include "clang/AST/RecursiveASTVisitor.h"
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#include "clang/Basic/FileManager.h"
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2012-03-07 04:06:33 +08:00
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#include "clang/Edit/Commit.h"
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2012-12-04 17:13:33 +08:00
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#include "clang/Edit/EditedSource.h"
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2012-03-07 04:06:33 +08:00
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#include "clang/Edit/EditsReceiver.h"
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2012-12-04 17:13:33 +08:00
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#include "clang/Edit/Rewriters.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/MultiplexConsumer.h"
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2012-12-04 15:27:05 +08:00
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#include "clang/Lex/PPConditionalDirectiveRecord.h"
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2012-12-04 17:13:33 +08:00
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Rewrite/Core/Rewriter.h"
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2012-03-07 04:06:33 +08:00
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#include "llvm/ADT/SmallString.h"
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using namespace clang;
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using namespace arcmt;
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namespace {
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class ObjCMigrateASTConsumer : public ASTConsumer {
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void migrateDecl(Decl *D);
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void migrateObjCInterfaceDecl(ASTContext &Ctx, ObjCInterfaceDecl *D);
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2013-07-13 06:32:19 +08:00
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void migrateProtocolConformance(ASTContext &Ctx,
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const ObjCImplementationDecl *ImpDecl);
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2013-07-19 04:11:45 +08:00
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void migrateNSEnumDecl(ASTContext &Ctx, const EnumDecl *EnumDcl,
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const TypedefDecl *TypedefDcl);
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2013-07-24 06:42:28 +08:00
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void migrateInstanceType(ASTContext &Ctx, ObjCContainerDecl *CDecl);
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2013-07-24 07:34:42 +08:00
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void migrateMethodInstanceType(ASTContext &Ctx, ObjCContainerDecl *CDecl,
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ObjCMethodDecl *OM);
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2013-08-02 06:29:32 +08:00
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void migrateFactoryMethod(ASTContext &Ctx, ObjCContainerDecl *CDecl,
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ObjCMethodDecl *OM);
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2012-03-07 04:06:33 +08:00
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public:
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std::string MigrateDir;
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bool MigrateLiterals;
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bool MigrateSubscripting;
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2013-07-10 00:59:14 +08:00
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bool MigrateProperty;
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OwningPtr<NSAPI> NSAPIObj;
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OwningPtr<edit::EditedSource> Editor;
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FileRemapper &Remapper;
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FileManager &FileMgr;
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const PPConditionalDirectiveRecord *PPRec;
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Preprocessor &PP;
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bool IsOutputFile;
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llvm::SmallPtrSet<ObjCProtocolDecl *, 32> ObjCProtocolDecls;
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2012-03-07 04:06:33 +08:00
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ObjCMigrateASTConsumer(StringRef migrateDir,
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bool migrateLiterals,
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bool migrateSubscripting,
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bool migrateProperty,
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2012-03-07 04:06:33 +08:00
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FileRemapper &remapper,
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FileManager &fileMgr,
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const PPConditionalDirectiveRecord *PPRec,
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Preprocessor &PP,
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bool isOutputFile = false)
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: MigrateDir(migrateDir),
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MigrateLiterals(migrateLiterals),
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MigrateSubscripting(migrateSubscripting),
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MigrateProperty(migrateProperty),
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Remapper(remapper), FileMgr(fileMgr), PPRec(PPRec), PP(PP),
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IsOutputFile(isOutputFile) { }
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protected:
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virtual void Initialize(ASTContext &Context) {
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NSAPIObj.reset(new NSAPI(Context));
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Editor.reset(new edit::EditedSource(Context.getSourceManager(),
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Context.getLangOpts(),
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PPRec));
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}
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virtual bool HandleTopLevelDecl(DeclGroupRef DG) {
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for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I)
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migrateDecl(*I);
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return true;
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}
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virtual void HandleInterestingDecl(DeclGroupRef DG) {
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// Ignore decls from the PCH.
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}
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virtual void HandleTopLevelDeclInObjCContainer(DeclGroupRef DG) {
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ObjCMigrateASTConsumer::HandleTopLevelDecl(DG);
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}
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virtual void HandleTranslationUnit(ASTContext &Ctx);
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};
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}
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ObjCMigrateAction::ObjCMigrateAction(FrontendAction *WrappedAction,
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StringRef migrateDir,
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bool migrateLiterals,
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bool migrateSubscripting,
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bool migrateProperty)
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2012-03-07 04:06:33 +08:00
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: WrapperFrontendAction(WrappedAction), MigrateDir(migrateDir),
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MigrateLiterals(migrateLiterals), MigrateSubscripting(migrateSubscripting),
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MigrateProperty(migrateProperty),
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CompInst(0) {
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if (MigrateDir.empty())
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MigrateDir = "."; // user current directory if none is given.
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}
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ASTConsumer *ObjCMigrateAction::CreateASTConsumer(CompilerInstance &CI,
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StringRef InFile) {
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PPConditionalDirectiveRecord *
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PPRec = new PPConditionalDirectiveRecord(CompInst->getSourceManager());
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CompInst->getPreprocessor().addPPCallbacks(PPRec);
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ASTConsumer *
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WrappedConsumer = WrapperFrontendAction::CreateASTConsumer(CI, InFile);
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ASTConsumer *MTConsumer = new ObjCMigrateASTConsumer(MigrateDir,
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MigrateLiterals,
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MigrateSubscripting,
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MigrateProperty,
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Remapper,
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CompInst->getFileManager(),
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PPRec,
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CompInst->getPreprocessor());
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ASTConsumer *Consumers[] = { MTConsumer, WrappedConsumer };
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return new MultiplexConsumer(Consumers);
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}
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bool ObjCMigrateAction::BeginInvocation(CompilerInstance &CI) {
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Remapper.initFromDisk(MigrateDir, CI.getDiagnostics(),
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/*ignoreIfFilesChanges=*/true);
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CompInst = &CI;
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CI.getDiagnostics().setIgnoreAllWarnings(true);
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return true;
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}
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namespace {
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class ObjCMigrator : public RecursiveASTVisitor<ObjCMigrator> {
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ObjCMigrateASTConsumer &Consumer;
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ParentMap &PMap;
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2012-03-07 04:06:33 +08:00
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public:
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ObjCMigrator(ObjCMigrateASTConsumer &consumer, ParentMap &PMap)
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: Consumer(consumer), PMap(PMap) { }
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bool shouldVisitTemplateInstantiations() const { return false; }
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bool shouldWalkTypesOfTypeLocs() const { return false; }
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bool VisitObjCMessageExpr(ObjCMessageExpr *E) {
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if (Consumer.MigrateLiterals) {
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edit::Commit commit(*Consumer.Editor);
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edit::rewriteToObjCLiteralSyntax(E, *Consumer.NSAPIObj, commit, &PMap);
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Consumer.Editor->commit(commit);
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}
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if (Consumer.MigrateSubscripting) {
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edit::Commit commit(*Consumer.Editor);
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edit::rewriteToObjCSubscriptSyntax(E, *Consumer.NSAPIObj, commit);
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Consumer.Editor->commit(commit);
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}
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return true;
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}
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bool TraverseObjCMessageExpr(ObjCMessageExpr *E) {
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// Do depth first; we want to rewrite the subexpressions first so that if
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// we have to move expressions we will move them already rewritten.
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for (Stmt::child_range range = E->children(); range; ++range)
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if (!TraverseStmt(*range))
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return false;
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return WalkUpFromObjCMessageExpr(E);
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}
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};
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class BodyMigrator : public RecursiveASTVisitor<BodyMigrator> {
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ObjCMigrateASTConsumer &Consumer;
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OwningPtr<ParentMap> PMap;
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public:
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BodyMigrator(ObjCMigrateASTConsumer &consumer) : Consumer(consumer) { }
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bool shouldVisitTemplateInstantiations() const { return false; }
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bool shouldWalkTypesOfTypeLocs() const { return false; }
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bool TraverseStmt(Stmt *S) {
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PMap.reset(new ParentMap(S));
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ObjCMigrator(Consumer, *PMap).TraverseStmt(S);
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return true;
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}
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};
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2012-03-07 04:06:33 +08:00
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}
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void ObjCMigrateASTConsumer::migrateDecl(Decl *D) {
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if (!D)
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return;
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if (isa<ObjCMethodDecl>(D))
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return; // Wait for the ObjC container declaration.
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2013-01-17 07:54:48 +08:00
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BodyMigrator(*this).TraverseDecl(D);
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2012-03-07 04:06:33 +08:00
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}
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2013-07-19 06:17:33 +08:00
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static bool rewriteToObjCProperty(const ObjCMethodDecl *Getter,
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const ObjCMethodDecl *Setter,
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const NSAPI &NS, edit::Commit &commit) {
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ASTContext &Context = NS.getASTContext();
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std::string PropertyString = "@property";
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const ParmVarDecl *argDecl = *Setter->param_begin();
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QualType ArgType = Context.getCanonicalType(argDecl->getType());
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Qualifiers::ObjCLifetime propertyLifetime = ArgType.getObjCLifetime();
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if (ArgType->isObjCRetainableType() &&
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propertyLifetime == Qualifiers::OCL_Strong) {
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if (const ObjCObjectPointerType *ObjPtrTy =
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ArgType->getAs<ObjCObjectPointerType>()) {
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ObjCInterfaceDecl *IDecl = ObjPtrTy->getObjectType()->getInterface();
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if (IDecl &&
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IDecl->lookupNestedProtocol(&Context.Idents.get("NSCopying")))
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PropertyString += "(copy)";
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}
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}
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else if (propertyLifetime == Qualifiers::OCL_Weak)
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// TODO. More precise determination of 'weak' attribute requires
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// looking into setter's implementation for backing weak ivar.
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PropertyString += "(weak)";
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else
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PropertyString += "(unsafe_unretained)";
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// strip off any ARC lifetime qualifier.
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QualType CanResultTy = Context.getCanonicalType(Getter->getResultType());
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if (CanResultTy.getQualifiers().hasObjCLifetime()) {
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Qualifiers Qs = CanResultTy.getQualifiers();
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Qs.removeObjCLifetime();
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CanResultTy = Context.getQualifiedType(CanResultTy.getUnqualifiedType(), Qs);
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}
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PropertyString += " ";
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PropertyString += CanResultTy.getAsString(Context.getPrintingPolicy());
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PropertyString += " ";
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PropertyString += Getter->getNameAsString();
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commit.replace(CharSourceRange::getCharRange(Getter->getLocStart(),
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Getter->getDeclaratorEndLoc()),
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PropertyString);
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SourceLocation EndLoc = Setter->getDeclaratorEndLoc();
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// Get location past ';'
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EndLoc = EndLoc.getLocWithOffset(1);
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commit.remove(CharSourceRange::getCharRange(Setter->getLocStart(), EndLoc));
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return true;
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}
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2013-07-04 07:05:00 +08:00
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void ObjCMigrateASTConsumer::migrateObjCInterfaceDecl(ASTContext &Ctx,
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ObjCInterfaceDecl *D) {
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for (ObjCContainerDecl::method_iterator M = D->meth_begin(), MEnd = D->meth_end();
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M != MEnd; ++M) {
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ObjCMethodDecl *Method = (*M);
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if (Method->isPropertyAccessor() || Method->param_size() != 0)
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continue;
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// Is this method candidate to be a getter?
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QualType GRT = Method->getResultType();
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if (GRT->isVoidType())
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continue;
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2013-07-09 06:49:25 +08:00
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// FIXME. Don't know what todo with attributes, skip for now.
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if (Method->hasAttrs())
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continue;
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2013-07-04 07:44:11 +08:00
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Selector GetterSelector = Method->getSelector();
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IdentifierInfo *getterName = GetterSelector.getIdentifierInfoForSlot(0);
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Selector SetterSelector =
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SelectorTable::constructSetterSelector(PP.getIdentifierTable(),
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PP.getSelectorTable(),
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getterName);
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if (ObjCMethodDecl *SetterMethod = D->lookupMethod(SetterSelector, true)) {
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// Is this a valid setter, matching the target getter?
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QualType SRT = SetterMethod->getResultType();
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if (!SRT->isVoidType())
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continue;
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const ParmVarDecl *argDecl = *SetterMethod->param_begin();
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2013-07-04 08:24:32 +08:00
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QualType ArgType = argDecl->getType();
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2013-07-09 06:49:25 +08:00
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if (!Ctx.hasSameUnqualifiedType(ArgType, GRT) ||
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SetterMethod->hasAttrs())
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2013-07-04 08:24:32 +08:00
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continue;
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2013-07-06 04:46:03 +08:00
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edit::Commit commit(*Editor);
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2013-07-19 06:17:33 +08:00
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rewriteToObjCProperty(Method, SetterMethod, *NSAPIObj, commit);
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2013-07-06 04:46:03 +08:00
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Editor->commit(commit);
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2013-07-04 07:05:00 +08:00
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}
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}
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}
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2013-07-13 08:04:20 +08:00
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static bool
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ClassImplementsAllMethodsAndProperties(ASTContext &Ctx,
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const ObjCImplementationDecl *ImpDecl,
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2013-07-16 05:22:08 +08:00
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const ObjCInterfaceDecl *IDecl,
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ObjCProtocolDecl *Protocol) {
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2013-07-16 05:22:08 +08:00
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// In auto-synthesis, protocol properties are not synthesized. So,
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// a conforming protocol must have its required properties declared
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// in class interface.
|
2013-07-23 07:50:04 +08:00
|
|
|
bool HasAtleastOneRequiredProperty = false;
|
2013-07-16 05:22:08 +08:00
|
|
|
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;
|
2013-07-23 07:50:04 +08:00
|
|
|
HasAtleastOneRequiredProperty = true;
|
2013-07-16 05:22:08 +08:00
|
|
|
DeclContext::lookup_const_result R = IDecl->lookup(Property->getDeclName());
|
2013-07-17 05:59:42 +08:00
|
|
|
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()))
|
2013-07-16 05:22:08 +08:00
|
|
|
return false;
|
|
|
|
}
|
2013-07-17 05:59:42 +08:00
|
|
|
else
|
|
|
|
return false;
|
2013-07-16 05:22:08 +08:00
|
|
|
}
|
2013-07-23 07:50:04 +08:00
|
|
|
|
2013-07-16 05:22:08 +08:00
|
|
|
// 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.
|
2013-07-23 07:50:04 +08:00
|
|
|
bool HasAtleastOneRequiredMethod = false;
|
2013-07-16 08:20:21 +08:00
|
|
|
if (const ObjCProtocolDecl *PDecl = Protocol->getDefinition()) {
|
|
|
|
if (PDecl->meth_begin() == PDecl->meth_end())
|
2013-07-23 07:50:04 +08:00
|
|
|
return HasAtleastOneRequiredProperty;
|
2013-07-16 05:22:08 +08:00
|
|
|
for (ObjCContainerDecl::method_iterator M = PDecl->meth_begin(),
|
|
|
|
MEnd = PDecl->meth_end(); M != MEnd; ++M) {
|
|
|
|
ObjCMethodDecl *MD = (*M);
|
2013-07-16 08:20:21 +08:00
|
|
|
if (MD->isImplicit())
|
|
|
|
continue;
|
2013-07-16 05:22:08 +08:00
|
|
|
if (MD->getImplementationControl() == ObjCMethodDecl::Optional)
|
|
|
|
continue;
|
|
|
|
DeclContext::lookup_const_result R = ImpDecl->lookup(MD->getDeclName());
|
2013-07-16 08:20:21 +08:00
|
|
|
if (R.size() == 0)
|
|
|
|
return false;
|
2013-07-23 07:50:04 +08:00
|
|
|
bool match = false;
|
|
|
|
HasAtleastOneRequiredMethod = true;
|
2013-07-16 05:22:08 +08:00
|
|
|
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;
|
|
|
|
}
|
2013-07-16 08:20:21 +08:00
|
|
|
}
|
2013-07-23 07:50:04 +08:00
|
|
|
if (HasAtleastOneRequiredProperty || HasAtleastOneRequiredMethod)
|
|
|
|
return true;
|
|
|
|
return false;
|
2013-07-13 08:04:20 +08:00
|
|
|
}
|
|
|
|
|
2013-07-19 06:17:33 +08:00
|
|
|
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,
|
2013-07-19 09:05:49 +08:00
|
|
|
const NSAPI &NS, edit::Commit &commit,
|
|
|
|
bool IsNSIntegerType) {
|
2013-07-20 04:18:36 +08:00
|
|
|
std::string ClassString =
|
2013-07-19 09:05:49 +08:00
|
|
|
IsNSIntegerType ? "typedef NS_ENUM(NSInteger, " : "typedef NS_OPTIONS(NSUInteger, ";
|
2013-07-19 06:17:33 +08:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2013-07-23 02:53:45 +08:00
|
|
|
static bool rewriteToNSMacroDecl(const EnumDecl *EnumDcl,
|
2013-07-20 04:18:36 +08:00
|
|
|
const TypedefDecl *TypedefDcl,
|
2013-07-23 02:53:45 +08:00
|
|
|
const NSAPI &NS, edit::Commit &commit,
|
|
|
|
bool IsNSIntegerType) {
|
|
|
|
std::string ClassString =
|
|
|
|
IsNSIntegerType ? "NS_ENUM(NSInteger, " : "NS_OPTIONS(NSUInteger, ";
|
2013-07-20 04:18:36 +08:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2013-07-23 02:53:45 +08:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2013-07-20 01:44:32 +08:00
|
|
|
void ObjCMigrateASTConsumer::migrateProtocolConformance(ASTContext &Ctx,
|
2013-07-13 06:32:19 +08:00
|
|
|
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);
|
2013-07-13 08:04:20 +08:00
|
|
|
llvm::SmallVector<ObjCProtocolDecl *, 8> PotentialImplicitProtocols;
|
2013-07-13 06:32:19 +08:00
|
|
|
|
2013-07-13 08:04:20 +08:00
|
|
|
for (llvm::SmallPtrSet<ObjCProtocolDecl*, 32>::iterator I =
|
2013-07-13 06:32:19 +08:00
|
|
|
ObjCProtocolDecls.begin(),
|
|
|
|
E = ObjCProtocolDecls.end(); I != E; ++I)
|
|
|
|
if (!ExplicitProtocols.count(*I))
|
2013-07-13 08:04:20 +08:00
|
|
|
PotentialImplicitProtocols.push_back(*I);
|
2013-07-13 06:32:19 +08:00
|
|
|
|
|
|
|
if (PotentialImplicitProtocols.empty())
|
|
|
|
return;
|
2013-07-13 08:04:20 +08:00
|
|
|
|
|
|
|
// 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++)
|
2013-07-16 05:22:08 +08:00
|
|
|
if (ClassImplementsAllMethodsAndProperties(Ctx, ImpDecl, IDecl,
|
2013-07-13 08:04:20 +08:00
|
|
|
PotentialImplicitProtocols[i]))
|
|
|
|
ConformingProtocols.push_back(PotentialImplicitProtocols[i]);
|
2013-07-16 08:20:21 +08:00
|
|
|
|
|
|
|
if (ConformingProtocols.empty())
|
|
|
|
return;
|
2013-07-17 08:02:22 +08:00
|
|
|
|
|
|
|
// 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);
|
|
|
|
}
|
2013-07-16 08:20:21 +08:00
|
|
|
edit::Commit commit(*Editor);
|
2013-07-19 06:17:33 +08:00
|
|
|
rewriteToObjCInterfaceDecl(IDecl, MinimalConformingProtocols,
|
|
|
|
*NSAPIObj, commit);
|
2013-07-16 08:20:21 +08:00
|
|
|
Editor->commit(commit);
|
2013-07-13 06:32:19 +08:00
|
|
|
}
|
|
|
|
|
2013-07-19 04:11:45 +08:00
|
|
|
void ObjCMigrateASTConsumer::migrateNSEnumDecl(ASTContext &Ctx,
|
|
|
|
const EnumDecl *EnumDcl,
|
|
|
|
const TypedefDecl *TypedefDcl) {
|
|
|
|
if (!EnumDcl->isCompleteDefinition() || EnumDcl->getIdentifier() ||
|
|
|
|
!TypedefDcl->getIdentifier())
|
|
|
|
return;
|
|
|
|
|
|
|
|
QualType qt = TypedefDcl->getTypeSourceInfo()->getType();
|
2013-07-19 09:05:49 +08:00
|
|
|
bool IsNSIntegerType = NSAPIObj->isObjCNSIntegerType(qt);
|
|
|
|
bool IsNSUIntegerType = !IsNSIntegerType && NSAPIObj->isObjCNSUIntegerType(qt);
|
2013-07-23 02:53:45 +08:00
|
|
|
|
2013-07-20 04:18:36 +08:00
|
|
|
if (!IsNSIntegerType && !IsNSUIntegerType) {
|
|
|
|
// Also check for typedef enum {...} TD;
|
|
|
|
if (const EnumType *EnumTy = qt->getAs<EnumType>()) {
|
|
|
|
if (EnumTy->getDecl() == EnumDcl) {
|
2013-07-23 02:53:45 +08:00
|
|
|
bool NSOptions = UseNSOptionsMacro(Ctx, EnumDcl);
|
|
|
|
if (NSOptions) {
|
|
|
|
if (!Ctx.Idents.get("NS_OPTIONS").hasMacroDefinition())
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
else if (!Ctx.Idents.get("NS_ENUM").hasMacroDefinition())
|
2013-07-20 04:18:36 +08:00
|
|
|
return;
|
|
|
|
edit::Commit commit(*Editor);
|
2013-07-23 02:53:45 +08:00
|
|
|
rewriteToNSMacroDecl(EnumDcl, TypedefDcl, *NSAPIObj, commit, !NSOptions);
|
2013-07-20 04:18:36 +08:00
|
|
|
Editor->commit(commit);
|
|
|
|
}
|
|
|
|
}
|
2013-07-23 02:53:45 +08:00
|
|
|
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;
|
2013-07-20 04:18:36 +08:00
|
|
|
}
|
2013-07-19 04:11:45 +08:00
|
|
|
|
|
|
|
// NS_ENUM must be available.
|
2013-07-19 09:05:49 +08:00
|
|
|
if (IsNSIntegerType && !Ctx.Idents.get("NS_ENUM").hasMacroDefinition())
|
|
|
|
return;
|
|
|
|
// NS_OPTIONS must be available.
|
|
|
|
if (IsNSUIntegerType && !Ctx.Idents.get("NS_OPTIONS").hasMacroDefinition())
|
2013-07-19 04:11:45 +08:00
|
|
|
return;
|
|
|
|
edit::Commit commit(*Editor);
|
2013-07-19 09:05:49 +08:00
|
|
|
rewriteToNSEnumDecl(EnumDcl, TypedefDcl, *NSAPIObj, commit, IsNSIntegerType);
|
2013-07-19 04:11:45 +08:00
|
|
|
Editor->commit(commit);
|
|
|
|
}
|
|
|
|
|
2013-08-02 06:29:32 +08:00
|
|
|
static void ReplaceWithInstancetype(const ObjCMigrateASTConsumer &ASTC,
|
|
|
|
ObjCMethodDecl *OM) {
|
|
|
|
SourceRange R;
|
|
|
|
std::string ClassString;
|
|
|
|
if (TypeSourceInfo *TSInfo = OM->getResultTypeSourceInfo()) {
|
|
|
|
TypeLoc TL = TSInfo->getTypeLoc();
|
|
|
|
R = SourceRange(TL.getBeginLoc(), TL.getEndLoc());
|
|
|
|
ClassString = "instancetype";
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
R = SourceRange(OM->getLocStart(), OM->getLocStart());
|
|
|
|
ClassString = OM->isInstanceMethod() ? '-' : '+';
|
|
|
|
ClassString += " (instancetype)";
|
|
|
|
}
|
|
|
|
edit::Commit commit(*ASTC.Editor);
|
|
|
|
commit.replace(R, ClassString);
|
|
|
|
ASTC.Editor->commit(commit);
|
|
|
|
}
|
|
|
|
|
2013-07-24 07:34:42 +08:00
|
|
|
void ObjCMigrateASTConsumer::migrateMethodInstanceType(ASTContext &Ctx,
|
|
|
|
ObjCContainerDecl *CDecl,
|
|
|
|
ObjCMethodDecl *OM) {
|
2013-07-24 06:42:28 +08:00
|
|
|
ObjCInstanceTypeFamily OIT_Family =
|
|
|
|
Selector::getInstTypeMethodFamily(OM->getSelector());
|
2013-08-02 06:29:32 +08:00
|
|
|
if (OIT_Family == OIT_None) {
|
|
|
|
migrateFactoryMethod(Ctx, CDecl, OM);
|
2013-07-24 06:42:28 +08:00
|
|
|
return;
|
2013-08-02 06:29:32 +08:00
|
|
|
}
|
2013-07-25 03:18:37 +08:00
|
|
|
std::string ClassName;
|
2013-07-24 07:55:55 +08:00
|
|
|
switch (OIT_Family) {
|
|
|
|
case OIT_Array:
|
2013-07-25 03:18:37 +08:00
|
|
|
ClassName = "NSArray";
|
2013-07-24 07:55:55 +08:00
|
|
|
break;
|
|
|
|
case OIT_Dictionary:
|
2013-07-25 03:18:37 +08:00
|
|
|
ClassName = "NSDictionary";
|
|
|
|
break;
|
|
|
|
case OIT_MemManage:
|
|
|
|
ClassName = "NSObject";
|
2013-07-24 07:55:55 +08:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return;
|
|
|
|
}
|
2013-07-24 06:42:28 +08:00
|
|
|
if (!OM->getResultType()->isObjCIdType())
|
|
|
|
return;
|
|
|
|
|
|
|
|
ObjCInterfaceDecl *IDecl = dyn_cast<ObjCInterfaceDecl>(CDecl);
|
|
|
|
if (!IDecl) {
|
|
|
|
if (ObjCCategoryDecl *CatDecl = dyn_cast<ObjCCategoryDecl>(CDecl))
|
|
|
|
IDecl = CatDecl->getClassInterface();
|
|
|
|
else if (ObjCImplDecl *ImpDecl = dyn_cast<ObjCImplDecl>(CDecl))
|
|
|
|
IDecl = ImpDecl->getClassInterface();
|
|
|
|
}
|
2013-07-25 03:18:37 +08:00
|
|
|
if (!IDecl ||
|
2013-08-02 06:29:32 +08:00
|
|
|
!IDecl->lookupInheritedClass(&Ctx.Idents.get(ClassName))) {
|
|
|
|
migrateFactoryMethod(Ctx, CDecl, OM);
|
2013-07-24 06:42:28 +08:00
|
|
|
return;
|
2013-07-25 02:31:42 +08:00
|
|
|
}
|
2013-08-02 06:29:32 +08:00
|
|
|
ReplaceWithInstancetype(*this, OM);
|
2013-07-24 06:42:28 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
void ObjCMigrateASTConsumer::migrateInstanceType(ASTContext &Ctx,
|
|
|
|
ObjCContainerDecl *CDecl) {
|
|
|
|
// migrate methods which can have instancetype as their result type.
|
|
|
|
for (ObjCContainerDecl::method_iterator M = CDecl->meth_begin(),
|
|
|
|
MEnd = CDecl->meth_end();
|
|
|
|
M != MEnd; ++M) {
|
|
|
|
ObjCMethodDecl *Method = (*M);
|
|
|
|
migrateMethodInstanceType(Ctx, CDecl, Method);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-08-02 06:29:32 +08:00
|
|
|
void ObjCMigrateASTConsumer::migrateFactoryMethod(ASTContext &Ctx,
|
|
|
|
ObjCContainerDecl *CDecl,
|
|
|
|
ObjCMethodDecl *OM) {
|
|
|
|
if (OM->isInstanceMethod() || !OM->getResultType()->isObjCIdType())
|
|
|
|
return;
|
|
|
|
|
|
|
|
// Candidate factory methods are + (id) NaMeXXX : ... which belong to a class
|
|
|
|
// NSYYYNamE with matching names be at least 3 characters long.
|
|
|
|
ObjCInterfaceDecl *IDecl = dyn_cast<ObjCInterfaceDecl>(CDecl);
|
|
|
|
if (!IDecl) {
|
|
|
|
if (ObjCCategoryDecl *CatDecl = dyn_cast<ObjCCategoryDecl>(CDecl))
|
|
|
|
IDecl = CatDecl->getClassInterface();
|
|
|
|
else if (ObjCImplDecl *ImpDecl = dyn_cast<ObjCImplDecl>(CDecl))
|
|
|
|
IDecl = ImpDecl->getClassInterface();
|
|
|
|
}
|
|
|
|
if (!IDecl)
|
|
|
|
return;
|
|
|
|
|
|
|
|
StringRef ClassName = IDecl->getName();
|
|
|
|
if (!ClassName.startswith("NS"))
|
|
|
|
return;
|
|
|
|
|
|
|
|
ClassName = ClassName.lower();
|
|
|
|
IdentifierInfo *MethodIdName = OM->getSelector().getIdentifierInfoForSlot(0);
|
|
|
|
StringRef MethodName = MethodIdName->getName();
|
|
|
|
StringRef MethodNamePrefix = MethodName.substr(0, 3).lower();
|
|
|
|
size_t Ix = ClassName.rfind(MethodNamePrefix);
|
|
|
|
if (Ix == StringRef::npos)
|
|
|
|
return;
|
|
|
|
StringRef ClassNamePostfix = ClassName.substr(Ix);
|
|
|
|
MethodName = MethodName.lower();
|
|
|
|
if (!MethodName.startswith(ClassNamePostfix))
|
|
|
|
return;
|
|
|
|
ReplaceWithInstancetype(*this, OM);
|
|
|
|
}
|
|
|
|
|
2012-03-07 04:06:33 +08:00
|
|
|
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) {
|
2013-07-04 07:05:00 +08:00
|
|
|
|
|
|
|
TranslationUnitDecl *TU = Ctx.getTranslationUnitDecl();
|
2013-07-10 00:59:14 +08:00
|
|
|
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);
|
2013-07-13 06:32:19 +08:00
|
|
|
else if (ObjCProtocolDecl *PDecl = dyn_cast<ObjCProtocolDecl>(*D))
|
|
|
|
ObjCProtocolDecls.insert(PDecl);
|
|
|
|
else if (const ObjCImplementationDecl *ImpDecl =
|
|
|
|
dyn_cast<ObjCImplementationDecl>(*D))
|
|
|
|
migrateProtocolConformance(Ctx, ImpDecl);
|
2013-07-19 04:11:45 +08:00
|
|
|
else if (const EnumDecl *ED = dyn_cast<EnumDecl>(*D)) {
|
|
|
|
DeclContext::decl_iterator N = D;
|
|
|
|
++N;
|
2013-07-20 01:44:32 +08:00
|
|
|
if (N != DEnd)
|
|
|
|
if (const TypedefDecl *TD = dyn_cast<TypedefDecl>(*N))
|
|
|
|
migrateNSEnumDecl(Ctx, ED, TD);
|
2013-07-19 04:11:45 +08:00
|
|
|
}
|
2013-07-24 06:42:28 +08:00
|
|
|
// migrate methods which can have instancetype as their result type.
|
|
|
|
if (ObjCContainerDecl *CDecl = dyn_cast<ObjCContainerDecl>(*D))
|
|
|
|
migrateInstanceType(Ctx, CDecl);
|
2013-07-10 00:59:14 +08:00
|
|
|
}
|
2013-07-04 07:05:00 +08:00
|
|
|
|
2012-03-11 15:00:24 +08:00
|
|
|
Rewriter rewriter(Ctx.getSourceManager(), Ctx.getLangOpts());
|
2012-03-07 04:06:33 +08:00
|
|
|
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);
|
2013-01-13 03:30:44 +08:00
|
|
|
SmallString<512> newText;
|
2012-03-07 04:06:33 +08:00
|
|
|
llvm::raw_svector_ostream vecOS(newText);
|
|
|
|
buf.write(vecOS);
|
|
|
|
vecOS.flush();
|
|
|
|
llvm::MemoryBuffer *memBuf = llvm::MemoryBuffer::getMemBufferCopy(
|
|
|
|
StringRef(newText.data(), newText.size()), file->getName());
|
2013-01-13 03:30:44 +08:00
|
|
|
SmallString<64> filePath(file->getName());
|
2012-03-07 04:06:33 +08:00
|
|
|
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) {
|
2012-05-25 00:48:23 +08:00
|
|
|
CI.getDiagnostics().setIgnoreAllWarnings(true);
|
2012-03-07 04:06:33 +08:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
ASTConsumer *MigrateSourceAction::CreateASTConsumer(CompilerInstance &CI,
|
|
|
|
StringRef InFile) {
|
2012-12-04 15:27:05 +08:00
|
|
|
PPConditionalDirectiveRecord *
|
|
|
|
PPRec = new PPConditionalDirectiveRecord(CI.getSourceManager());
|
|
|
|
CI.getPreprocessor().addPPCallbacks(PPRec);
|
2012-03-07 04:06:33 +08:00
|
|
|
return new ObjCMigrateASTConsumer(CI.getFrontendOpts().OutputFile,
|
|
|
|
/*MigrateLiterals=*/true,
|
|
|
|
/*MigrateSubscripting=*/true,
|
2013-07-10 00:59:14 +08:00
|
|
|
/*MigrateProperty*/true,
|
2012-03-07 04:06:33 +08:00
|
|
|
Remapper,
|
|
|
|
CI.getFileManager(),
|
2012-12-04 15:27:05 +08:00
|
|
|
PPRec,
|
2013-07-04 07:05:00 +08:00
|
|
|
CI.getPreprocessor(),
|
2012-03-07 04:06:33 +08:00
|
|
|
/*isOutputFile=*/true);
|
|
|
|
}
|