use alloc::vec::Vec;
use crate::{Deserialize, DeserializeBytes, Error, Serialize, SerializeBytes, Size};
#[cfg(feature = "std")]
use std::io::{Read, Write};
impl<const LEN: usize> Serialize for [u8; LEN] {
#[cfg(feature = "std")]
#[inline]
fn tls_serialize<W: Write>(&self, writer: &mut W) -> Result<usize, Error> {
let written = writer.write(self)?;
if written == LEN {
Ok(written)
} else {
Err(Error::InvalidWriteLength(format!(
"Expected to write {LEN} bytes but only {written} were written."
)))
}
}
}
impl<const LEN: usize> Deserialize for [u8; LEN] {
#[cfg(feature = "std")]
#[inline]
fn tls_deserialize<R: Read>(bytes: &mut R) -> Result<Self, Error> {
let mut out = [0u8; LEN];
bytes.read_exact(&mut out)?;
Ok(out)
}
}
impl<const LEN: usize> DeserializeBytes for [u8; LEN] {
#[inline]
fn tls_deserialize(bytes: &[u8]) -> Result<(Self, &[u8]), Error> {
let out = bytes
.get(..LEN)
.ok_or(Error::EndOfStream)?
.try_into()
.map_err(|_| Error::EndOfStream)?;
Ok((out, &bytes[LEN..]))
}
}
impl<const LEN: usize> SerializeBytes for [u8; LEN] {
fn tls_serialize(&self) -> Result<Vec<u8>, Error> {
Ok(self.to_vec())
}
}
impl<const LEN: usize> Size for [u8; LEN] {
#[inline]
fn tls_serialized_len(&self) -> usize {
LEN
}
}