impl<K, V> Readable for HashMap<K, V>
where K: Readable + Eq + Hash,
- V: Readable
+ V: MaybeReadable
{
#[inline]
fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
let len: u16 = Readable::read(r)?;
let mut ret = HashMap::with_capacity(len as usize);
for _ in 0..len {
- ret.insert(K::read(r)?, V::read(r)?);
+ let k = K::read(r)?;
+ let v_opt = V::read(r)?;
+ if let Some(v) = v_opt {
+ if ret.insert(k, v).is_some() {
+ return Err(DecodeError::InvalidValue);
+ }
+ }
}
Ok(ret)
}
}
}
+impl Writeable for () {
+ fn write<W: Writer>(&self, _: &mut W) -> Result<(), io::Error> {
+ Ok(())
+ }
+}
impl Readable for () {
fn read<R: Read>(_r: &mut R) -> Result<Self, DecodeError> {
Ok(())
w.write_all(self.as_bytes())
}
}
-
impl Readable for String {
#[inline]
fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {