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use crate::{NumBytes, Read, ReadError, Write, WriteError};
use alloc::collections::VecDeque;
impl<T> NumBytes for VecDeque<T>
where
T: NumBytes,
{
#[inline]
#[must_use]
fn num_bytes(&self) -> usize {
let mut count = self.len().num_bytes();
for item in self.iter() {
count += item.num_bytes();
}
count
}
}
impl<T> Read for VecDeque<T>
where
T: Read + Default + Clone,
{
#[inline]
fn read(bytes: &[u8], pos: &mut usize) -> Result<Self, ReadError> {
let capacity = usize::read(bytes, pos)?;
let mut results = Self::new();
results.resize(capacity, T::default());
for item in &mut results {
let r = T::read(bytes, pos)?;
*item = r;
}
Ok(results)
}
}
impl<T> Write for VecDeque<T>
where
T: Write,
{
#[inline]
fn write(
&self,
bytes: &mut [u8],
pos: &mut usize,
) -> Result<(), WriteError> {
self.len().write(bytes, pos)?;
for item in self.iter() {
item.write(bytes, pos)?;
}
Ok(())
}
}