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Move StrRefCodec and ByteSliceRefCodec to their own files

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This commit is contained in:
Loïc Lecrenier
2022-10-12 09:42:55 +02:00
parent 1165ba2171
commit a034a1e628
18 changed files with 140 additions and 107 deletions
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26
milli/src/heed_codec/facet/mod.rs
View File

@ -1,6 +1,5 @@
mod field_doc_id_facet_codec;
mod ordered_f64_codec;
mod str_ref;
use std::borrow::Cow;
use std::convert::TryFrom;
@ -12,9 +11,10 @@ use roaring::RoaringBitmap;
pub use self::field_doc_id_facet_codec::FieldDocIdFacetCodec;
pub use self::ordered_f64_codec::OrderedF64Codec;
pub use self::str_ref::StrRefCodec;
use crate::{CboRoaringBitmapCodec, BEU16};
use super::StrRefCodec;
pub type FieldDocIdFacetF64Codec = FieldDocIdFacetCodec<OrderedF64Codec>;
pub type FieldDocIdFacetStringCodec = FieldDocIdFacetCodec<StrRefCodec>;
pub type FieldDocIdFacetIgnoreCodec = FieldDocIdFacetCodec<DecodeIgnore>;
@ -33,7 +33,7 @@ pub fn try_split_at(slice: &[u8], mid: usize) -> Option<(&[u8], &[u8])> {
/// The key in the [`facet_id_string_docids` and `facet_id_f64_docids`][`Index::facet_id_string_docids`]
/// databases.
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)] // TODO: try removing PartialOrd and Ord
pub struct FacetGroupKey<T> {
pub field_id: u16,
pub level: u8,
@ -103,23 +103,3 @@ impl<'a> heed::BytesDecode<'a> for FacetGroupValueCodec {
Some(FacetGroupValue { size, bitmap })
}
}
/// 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 ByteSliceRef;
impl<'a> BytesEncode<'a> for ByteSliceRef {
type EItem = &'a [u8];
fn bytes_encode(item: &'a Self::EItem) -> Option<Cow<'a, [u8]>> {
Some(Cow::Borrowed(item))
}
}
impl<'a> BytesDecode<'a> for ByteSliceRef {
type DItem = &'a [u8];
fn bytes_decode(bytes: &'a [u8]) -> Option<Self::DItem> {
Some(bytes)
}
}

22
milli/src/heed_codec/facet/str_ref.rs
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@ -1,22 +0,0 @@
use std::borrow::Cow;
use heed::{BytesDecode, BytesEncode};
/// A codec for values of type `&str`. Unlike `Str`, its `EItem` and `DItem` associated
/// types are equivalent (= `&'a str`) and these values can reside within another structure.
pub struct StrRefCodec;
impl<'a> BytesEncode<'a> for StrRefCodec {
type EItem = &'a str;
fn bytes_encode(item: &'a &'a str) -> Option<Cow<'a, [u8]>> {
Some(Cow::Borrowed(item.as_bytes()))
}
}
impl<'a> BytesDecode<'a> for StrRefCodec {
type DItem = &'a str;
fn bytes_decode(bytes: &'a [u8]) -> Option<Self::DItem> {
let s = std::str::from_utf8(bytes).ok()?;
Some(s)
}
}