282   directory_iterator dir_begin(const Twine &Dir, std::error_code &EC) override;
342   SmallString<128> Dir;  in getCurrentWorkingDirectory()  local
343   if (std::error_code EC = llvm::sys::fs::current_path(Dir))  in getCurrentWorkingDirectory()
345   return std::string(Dir);  in getCurrentWorkingDirectory()
419 directory_iterator RealFileSystem::dir_begin(const Twine &Dir,  in dir_begin()  argument
423       std::make_shared<RealFSDirIter>(adjustPath(Dir, Storage), EC));  in dir_begin()
577   CombiningDirIterImpl(ArrayRef<FileSystemPtr> FileSystems, std::string Dir,  in CombiningDirIterImpl()  argument
581       directory_iterator Iter = FS->dir_begin(Dir, FEC);  in CombiningDirIterImpl()
603 directory_iterator OverlayFileSystem::dir_begin(const Twine &Dir,  in dir_begin()  argument
606       std::make_shared<CombiningDirIterImpl>(FSList, Dir.str(), EC));  in dir_begin()
861   detail::InMemoryDirectory *Dir = Root.get();  in addFile()  local
877     detail::InMemoryNode *Node = Dir->getChild(Name);  in addFile()
882           getDirectoryID(Dir->getUniqueID(), Name),  in addFile()
885       Dir = cast<detail::InMemoryDirectory>(Dir->addChild(  in addFile()
892     Dir = cast<detail::InMemoryDirectory>(Node);  in addFile()
894   detail::InMemoryNode *Node = Dir->getChild(Name);  in addFile()
896     Dir->addChild(Name,  in addFile()
897                   MakeNode({Dir->getUniqueID(), Path, Name, ModificationTime,  in addFile()
968   const detail::InMemoryDirectory *Dir = Root.get();  in lookupNode()  local
970     return detail::NamedNodeOrError(Path, Dir);  in lookupNode()
974     detail::InMemoryNode *Node = Dir->getChild(*I);  in lookupNode()
1005       Dir = cast<detail::InMemoryDirectory>(*Target);  in lookupNode()
1023     Dir = cast<detail::InMemoryDirectory>(Node);  in lookupNode()
1025       return detail::NamedNodeOrError(Path, Dir);  in lookupNode()
1131               const detail::InMemoryDirectory &Dir,  in DirIterator()  argument
1133       : FS(FS), I(Dir.begin()), E(Dir.end()),  in DirIterator()
1145 directory_iterator InMemoryFileSystem::dir_begin(const Twine &Dir,  in dir_begin()  argument
1147   auto Node = lookupNode(Dir, /*FollowFinalSymlink=*/true);  in dir_begin()
1155         std::make_shared<DirIterator>(this, *DirNode, Dir.str()));  in dir_begin()
1258   std::string Dir;  member in llvm::vfs::RedirectingFSDirIterImpl
1266       SmallString<128> PathStr(Dir);  in incrementImpl()
1290       : Dir(Path.str()), Current(Begin), End(End) {  in RedirectingFSDirIterImpl()
1304   std::string Dir;  member in __anon5c4e8b480b11::RedirectingFSDirRemapIterImpl
1311       : Dir(std::move(DirPath)), DirStyle(getExistingStyle(Dir)),  in RedirectingFSDirRemapIterImpl()
1322     SmallString<128> NewPath(Dir);  in setCurrentEntry()
1411   StringRef Dir(Result);  in makeAbsolute()  local
1412   if (!Dir.ends_with(sys::path::get_separator(style))) {  in makeAbsolute()
1426 directory_iterator RedirectingFileSystem::dir_begin(const Twine &Dir,  in dir_begin()  argument
1429   Dir.toVector(Path);  in dir_begin()
1446   ErrorOr<Status> S = status(Path, Dir, *Result);  in dir_begin()
1450       return ExternalFS->dir_begin(Dir, EC);  in dir_begin()
1526 void RedirectingFileSystem::setOverlayFileDir(StringRef Dir) {  in setOverlayFileDir()  argument
1527   OverlayFileDir = Dir.str();  in setOverlayFileDir()
2859       StringRef Dir =  in write()  local
2861       if (Dir == DirStack.back()) {  in write()
2867         while (!DirStack.empty() && !containedIn(DirStack.back(), Dir)) {  in write()
2875         startDirectory(Dir);  in write()