rename method Null safety

Future<Directory> rename(
  1. String newPath
)
override

Renames this directory.

Returns a Future<Directory> that completes with a Directory for the renamed directory.

If newPath identifies an existing directory, then the behavior is platform-specific. On all platforms, the future completes with a FileSystemException if the existing directory is not empty. On POSIX systems, if newPath identifies an existing empty directory then that directory is deleted before this directory is renamed.

If newPath identifies an existing file, the operation fails and the future completes with a FileSystemException.

Implementation

Future<Directory> rename(String newPath);