MeiliSearch/milli/src/heed_codec/byte_slice_ref.rs
2023-11-27 11:52:22 +01:00

24 lines
655 B
Rust

use std::borrow::Cow;
use heed::{BoxedError, BytesDecode, BytesEncode};
/// A codec for values of type `&[u8]`. Unlike `Bytes`, its `EItem` and `DItem` associated
/// types are equivalent (= `&'a [u8]`) and these values can reside within another structure.
pub struct BytesRefCodec;
impl<'a> BytesEncode<'a> for BytesRefCodec {
type EItem = &'a [u8];
fn bytes_encode(item: &'a Self::EItem) -> Result<Cow<'a, [u8]>, BoxedError> {
Ok(Cow::Borrowed(item))
}
}
impl<'a> BytesDecode<'a> for BytesRefCodec {
type DItem = &'a [u8];
fn bytes_decode(bytes: &'a [u8]) -> Result<Self::DItem, BoxedError> {
Ok(bytes)
}
}