Remove some clippy type complexity warns by deboxing iters

This commit is contained in:
Louis Dureuil 2023-02-01 14:19:38 +01:00
parent 74859ecd61
commit 9ac981d025
No known key found for this signature in database
3 changed files with 26 additions and 20 deletions

View File

@ -198,7 +198,7 @@ fn facet_ordered_iterative<'t>(
}
fn facet_extreme_value<'t>(
mut extreme_it: Box<dyn Iterator<Item = heed::Result<(RoaringBitmap, &[u8])>> + 't>,
mut extreme_it: impl Iterator<Item = heed::Result<(RoaringBitmap, &'t [u8])>> + 't,
) -> Result<Option<f64>> {
let extreme_value =
if let Some(extreme_value) = extreme_it.next() { extreme_value } else { return Ok(None) };
@ -236,21 +236,22 @@ fn facet_ordered_set_based<'t>(
is_ascending: bool,
candidates: RoaringBitmap,
) -> Result<Box<dyn Iterator<Item = heed::Result<RoaringBitmap>> + 't>> {
let make_iter = if is_ascending { ascending_facet_sort } else { descending_facet_sort };
let number_db =
index.facet_id_f64_docids.remap_key_type::<FacetGroupKeyCodec<ByteSliceRefCodec>>();
let string_db =
index.facet_id_string_docids.remap_key_type::<FacetGroupKeyCodec<ByteSliceRefCodec>>();
let number_iter = make_iter(
rtxn,
index.facet_id_f64_docids.remap_key_type::<FacetGroupKeyCodec<ByteSliceRefCodec>>(),
field_id,
candidates.clone(),
)?;
let (number_iter, string_iter) = if is_ascending {
let number_iter = ascending_facet_sort(rtxn, number_db, field_id, candidates.clone())?;
let string_iter = ascending_facet_sort(rtxn, string_db, field_id, candidates)?;
let string_iter = make_iter(
rtxn,
index.facet_id_string_docids.remap_key_type::<FacetGroupKeyCodec<ByteSliceRefCodec>>(),
field_id,
candidates,
)?;
(itertools::Either::Left(number_iter), itertools::Either::Left(string_iter))
} else {
let number_iter = descending_facet_sort(rtxn, number_db, field_id, candidates.clone())?;
let string_iter = descending_facet_sort(rtxn, string_db, field_id, candidates)?;
(itertools::Either::Right(number_iter), itertools::Either::Right(string_iter))
};
Ok(Box::new(number_iter.chain(string_iter).map(|res| res.map(|(doc_ids, _)| doc_ids))))
}

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@ -34,15 +34,20 @@ pub fn ascending_facet_sort<'t>(
db: heed::Database<FacetGroupKeyCodec<ByteSliceRefCodec>, FacetGroupValueCodec>,
field_id: u16,
candidates: RoaringBitmap,
) -> Result<Box<dyn Iterator<Item = Result<(RoaringBitmap, &'t [u8])>> + 't>> {
) -> Result<impl Iterator<Item = Result<(RoaringBitmap, &'t [u8])>> + 't> {
let highest_level = get_highest_level(rtxn, db, field_id)?;
if let Some(first_bound) = get_first_facet_value::<ByteSliceRefCodec>(rtxn, db, field_id)? {
let first_key = FacetGroupKey { field_id, level: highest_level, left_bound: first_bound };
let iter = db.range(rtxn, &(first_key..)).unwrap().take(usize::MAX);
Ok(Box::new(AscendingFacetSort { rtxn, db, field_id, stack: vec![(candidates, iter)] }))
Ok(itertools::Either::Left(AscendingFacetSort {
rtxn,
db,
field_id,
stack: vec![(candidates, iter)],
}))
} else {
Ok(Box::new(std::iter::empty()))
Ok(itertools::Either::Right(std::iter::empty()))
}
}

View File

@ -17,21 +17,21 @@ pub fn descending_facet_sort<'t>(
db: heed::Database<FacetGroupKeyCodec<ByteSliceRefCodec>, FacetGroupValueCodec>,
field_id: u16,
candidates: RoaringBitmap,
) -> Result<Box<dyn Iterator<Item = Result<(RoaringBitmap, &'t [u8])>> + 't>> {
) -> Result<impl Iterator<Item = Result<(RoaringBitmap, &'t [u8])>> + 't> {
let highest_level = get_highest_level(rtxn, db, field_id)?;
if let Some(first_bound) = get_first_facet_value::<ByteSliceRefCodec>(rtxn, db, field_id)? {
let first_key = FacetGroupKey { field_id, level: highest_level, left_bound: first_bound };
let last_bound = get_last_facet_value::<ByteSliceRefCodec>(rtxn, db, field_id)?.unwrap();
let last_key = FacetGroupKey { field_id, level: highest_level, left_bound: last_bound };
let iter = db.rev_range(rtxn, &(first_key..=last_key))?.take(usize::MAX);
Ok(Box::new(DescendingFacetSort {
Ok(itertools::Either::Left(DescendingFacetSort {
rtxn,
db,
field_id,
stack: vec![(candidates, iter, Bound::Included(last_bound))],
}))
} else {
Ok(Box::new(std::iter::empty()))
Ok(itertools::Either::Right(std::iter::empty()))
}
}