fs.size = fs.sys.Size
	fs.modTime = time.Unix(fs.sys.Mtimespec.Unix())
	fs.mode = FileMode(fs.sys.Mode & 0777)
	switch fs.sys.Mode & syscall.S_IFMT {
	case syscall.S_IFBLK:
		fs.mode |= ModeDevice
	case syscall.S_IFCHR:
		fs.mode |= ModeDevice | ModeCharDevice
	case syscall.S_IFDIR:
		fs.mode |= ModeDir
	case syscall.S_IFIFO:
		fs.mode |= ModeNamedPipe
	case syscall.S_IFLNK:
		fs.mode |= ModeSymlink
	case syscall.S_IFREG:

	fs.size = fs.sys.Size
	fs.modTime = time.Unix(fs.sys.Mtim.Unix())
	fs.mode = FileMode(fs.sys.Mode & 0777)
	switch fs.sys.Mode & syscall.S_IFMT {
	case syscall.S_IFBLK:
		fs.mode |= ModeDevice
	case syscall.S_IFCHR:
		fs.mode |= ModeDevice | ModeCharDevice
	case syscall.S_IFDIR:
		fs.mode |= ModeDir
	case syscall.S_IFIFO:
		fs.mode |= ModeNamedPipe
	case syscall.S_IFLNK:
		fs.mode |= ModeSymlink
	case syscall.S_IFREG:

		return nil, nil, nil, io.EOF
	}
	return names, dirents, infos, nil
}

func dtToType(typ uint8) FileMode {
	switch typ {
	case syscall.DT_BLK:
		return ModeDevice
	case syscall.DT_CHR:
		return ModeDevice | ModeCharDevice
	case syscall.DT_DIR:
		return ModeDir
	case syscall.DT_FIFO:
		return ModeNamedPipe
	case syscall.DT_LNK:
		return ModeSymlink
	case syscall.DT_REG:
		return 0

		mode |= fs.ModeSymlink
	case c_ISBLK:
		mode |= fs.ModeDevice
	case c_ISCHR:
		mode |= fs.ModeDevice
		mode |= fs.ModeCharDevice
	case c_ISSOCK:
		mode |= fs.ModeSocket
	}

	switch fi.h.Typeflag {
	case TypeSymlink:
		mode |= fs.ModeSymlink
	case TypeChar:
		mode |= fs.ModeDevice
		mode |= fs.ModeCharDevice
	case TypeBlock:
		mode |= fs.ModeDevice
	case TypeDir:
		mode |= fs.ModeDir

		return FileTypeDirectory, nil
	} else if mode.IsRegular() {
		return FileTypeFile, nil
	} else if isSpecificMode(mode, os.ModeSocket) {
		return FileTypeSocket, nil
	} else if isSpecificMode(mode, os.ModeDevice) {
		if isSpecificMode(mode, os.ModeCharDevice) {
			return FileTypeCharDev, nil
		}
		return FileTypeBlockDev, nil
	}

	return pathType, errUnknownFileType

			m |= ModeDir | 0111
		}

		switch fs.filetype {
		case syscall.FILE_TYPE_PIPE:
			m |= ModeNamedPipe
		case syscall.FILE_TYPE_CHAR:
			m |= ModeDevice | ModeCharDevice
		}
	}

	if fs.FileAttributes&syscall.FILE_ATTRIBUTE_REPARSE_POINT != 0 {
		switch fs.ReparseTag {
		case syscall.IO_REPARSE_TAG_SYMLINK:
			m |= ModeSymlink

		t.Fatal(err)
	}
	if got, want := fi.Mode(), os.ModeDevice|os.ModeCharDevice|0666; got != want {
		t.Errorf("Open(%q).Stat().Mode() = %v, want %v", "NUL", got, want)
	}
}

func TestStatNUL(t *testing.T) {
	t.Parallel()

	fi, err := os.Stat("NUL")
	if err != nil {
		t.Fatal(err)
	}
	if got, want := fi.Mode(), os.ModeDevice|os.ModeCharDevice|0666; got != want {

	pre := fmt.Sprintf("%s(%q): ", statname, devNullName)
	if fi.Size() != 0 {
		t.Errorf(pre+"wrong file size have %d want 0", fi.Size())
	}
	if fi.Mode()&ModeDevice == 0 {
		t.Errorf(pre+"wrong file mode %q: ModeDevice is not set", fi.Mode())
	}
	if fi.Mode()&ModeCharDevice == 0 {
		t.Errorf(pre+"wrong file mode %q: ModeCharDevice is not set", fi.Mode())
	}
	if fi.Mode().IsRegular() {

				data, origdata)
		}
	}
}

func TestWriterAddFSNonRegularFiles(t *testing.T) {
	fsys := fstest.MapFS{
		"device":  {Data: []byte("hello"), Mode: 0755 | fs.ModeDevice},
		"symlink": {Data: []byte("world"), Mode: 0755 | fs.ModeSymlink},
	}
	var buf bytes.Buffer
	tw := NewWriter(&buf)
	if err := tw.AddFS(fsys); err == nil {
		t.Fatal("expected error, got nil")
	}

        tf_device.return %identity : tensor<i32>
      }) {device = "some_device"} : () -> (tensor<i32>)
      return %launch : tensor<i32>
    }
    ```

    will be transformed into:

    ```mlir
    func @computation(%arg0: tensor<i32>) -> tensor<i32> {
      %launch = "tf_device.launch_func"(%arg0) {device = "some_device", func = @_func} : (tensor<i32>) -> tensor<i32>
      return %launch : tensor<i32>