bitcode/derive/
empty.rs

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1use crate::coder::{Buffer, Decoder, Encoder, Result, View};
2use alloc::vec::Vec;
3use core::marker::PhantomData;
4use core::num::NonZeroUsize;
5
6#[derive(Default)]
7pub struct EmptyCoder;
8
9impl<T> Encoder<PhantomData<T>> for EmptyCoder {
10    fn encode(&mut self, _: &PhantomData<T>) {}
11}
12
13impl Buffer for EmptyCoder {
14    fn collect_into(&mut self, _: &mut Vec<u8>) {}
15    fn reserve(&mut self, _: NonZeroUsize) {}
16}
17
18impl<'a> View<'a> for EmptyCoder {
19    fn populate(&mut self, _: &mut &'a [u8], _: usize) -> Result<()> {
20        Ok(())
21    }
22}
23
24impl<'a, T> Decoder<'a, PhantomData<T>> for EmptyCoder {
25    fn decode(&mut self) -> PhantomData<T> {
26        PhantomData
27    }
28}
29
30#[cfg(test)]
31mod tests {
32    use alloc::vec::Vec;
33    use core::marker::PhantomData;
34
35    fn bench_data() -> Vec<PhantomData<()>> {
36        vec![PhantomData; 100]
37    }
38    crate::bench_encode_decode!(phantom_data_vec: Vec<_>);
39}
bitcode/derive/empty.rs

bitcode/derive/
empty.rs
