message: impl From for EmscriptenVfsError
diff: @@ -102,9 +102,7 @@ impl EmscriptenVfs {
  match self.fd_map.get(&fd) {
  Some(FileHandle::Vf(file)) => {
  let mut mut_ref = RefCell::borrow_mut(file);
  - mut_ref
  - .write_file(buf_slice, 0)
  - .map_err(|e| EmscriptenVfsError::Io(e))
  + mut_ref.write_file(buf_slice, 0).into()
  }
  Some(FileHandle::Socket(host_fd)) => unsafe {
  let result = libc::write(*host_fd, buf_slice.as_ptr() as _, count as _);
  @@ -149,3 +147,9 @@ pub enum EmscriptenVfsError {
  Errno(errno::Errno),
  FileSystemError,
  }
  +
  +impl From<io::Error> for EmscriptenVfsError {
  + fn from(io_error: io::Error) -> Self {
  + EmscriptenVfsError::Io(io_error)
  + }
  +}
  