MeiliSearch/milli/src/heed_codec/byte_slice_ref.rs

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