Obtains the canonicalized absolute path name of sub_path relative to this
Dir. If sub_path is absolute, ignores this Dir handle and obtains the
canonicalized absolute pathname of sub_path argument.
This function has limited platform support, and using it can lead to unnecessary failures and race conditions. It is generally advisable to avoid this function entirely.
pub fn realPath(dir: Dir, io: Io, out_buffer: []u8) RealPathError!usize
pub fn realPath(dir: Dir, io: Io, out_buffer: []u8) RealPathError!usize {
return io.vtable.dirRealPath(io.userdata, dir, out_buffer);
}