Clippy and cleanups

bitpacker/src/bitpacker.rs

@@ -1,3 +1,7 @@
+// manual divceil actually generates code that is not optimal (to accept the full range of u32) and
+// perf matters here.
+#![allow(clippy::manual_div_ceil)]
+
 use std::io;
 use std::ops::{Range, RangeInclusive};
 

bitpacker/src/blocked_bitpacker.rs

@@ -140,10 +140,9 @@ impl BlockedBitpacker {
     pub fn iter(&self) -> impl Iterator<Item = u64> + '_ {
         // todo performance: we could decompress a whole block and cache it instead
         let bitpacked_elems = self.offset_and_bits.len() * BLOCK_SIZE;
-        let iter = (0..bitpacked_elems)
+        (0..bitpacked_elems)
             .map(move |idx| self.get(idx))
-            .chain(self.buffer.iter().cloned());
-        iter
+            .chain(self.buffer.iter().cloned())
     }
 }
 

bitpacker/src/lib.rs

@@ -1,3 +1,5 @@
+// #[allow(clippy::manual_div_ceil)]
+
 mod bitpacker;
 mod blocked_bitpacker;
 mod filter_vec;

columnar/src/columnar/mod.rs

@@ -1,3 +1,5 @@
+#![allow(clippy::manual_div_ceil)]
+
 mod column_type;
 mod format_version;
 mod merge;

columnar/src/lib.rs

@@ -17,7 +17,7 @@
 //!       column.
 //!     - [column_values]: Stores the values of a column in a dense format.
 
-#![cfg_attr(all(feature = "unstable", test), feature(test))]
+// #![cfg_attr(all(feature = "unstable", test), feature(test))]
 
 #[cfg(test)]
 #[macro_use]

common/src/bitset.rs

@@ -9,7 +9,7 @@ use crate::ByteCount;
 pub struct TinySet(u64);
 
 impl fmt::Debug for TinySet {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         self.into_iter().collect::<Vec<u32>>().fmt(f)
     }
 }
@@ -182,6 +182,7 @@ pub struct BitSet {
     max_value: u32,
 }
 
+#[inline(always)]
 fn num_buckets(max_val: u32) -> u32 {
     (max_val + 63u32) / 64u32
 }

common/src/lib.rs

@@ -1,4 +1,6 @@
-#![allow(clippy::len_without_is_empty)]
+// manual divceil actually generates code that is not optimal (to accept the full range of u32) and
+// perf matters here.
+#![allow(clippy::len_without_is_empty, clippy::manual_div_ceil)]
 
 use std::ops::Deref;
 

query-grammar/src/query_grammar.rs

@@ -305,15 +305,14 @@ fn term_group_infallible(inp: &str) -> JResult<&str, UserInputAst> {
     let (inp, (field_name, _, _, _)) =
         tuple((field_name, multispace0, char('('), multispace0))(inp).expect("precondition failed");
 
-    let res = delimited_infallible(
+    delimited_infallible(
         nothing,
         map(ast_infallible, |(mut ast, errors)| {
             ast.set_default_field(field_name.to_string());
             (ast, errors)
         }),
         opt_i_err(char(')'), "expected ')'"),
-    )(inp);
-    res
+    )(inp)
 }
 
 fn exists(inp: &str) -> IResult<&str, UserInputLeaf> {

src/collector/facet_collector.rs

@@ -484,7 +484,6 @@ impl FacetCounts {
 #[cfg(test)]
 mod tests {
     use std::collections::BTreeSet;
-    use std::iter;
 
     use columnar::Dictionary;
     use rand::distributions::Uniform;

src/positions/mod.rs

@@ -40,9 +40,6 @@ const COMPRESSION_BLOCK_SIZE: usize = BitPacker4x::BLOCK_LEN;
 
 #[cfg(test)]
 pub(crate) mod tests {
-
-    use std::iter;
-
     use proptest::prelude::*;
     use proptest::sample::select;
 

src/query/boolean_query/block_wand.rs

@@ -302,7 +302,6 @@ fn is_sorted<I: Iterator<Item = DocId>>(mut it: I) -> bool {
 mod tests {
     use std::cmp::Ordering;
     use std::collections::BinaryHeap;
-    use std::iter;
 
     use proptest::prelude::*;
 

src/tokenizer/ascii_folding_filter.rs

@@ -1561,8 +1561,6 @@ fn to_ascii(text: &str, output: &mut String) {
 
 #[cfg(test)]
 mod tests {
-    use std::iter;
-
     use super::to_ascii;
     use crate::tokenizer::{AsciiFoldingFilter, RawTokenizer, SimpleTokenizer, TextAnalyzer};
 

sstable/src/dictionary.rs

@@ -308,10 +308,9 @@ impl<TSSTable: SSTable> Dictionary<TSSTable> {
                 }
             }
             _ => {
-                return Err(io::Error::new(
-                    io::ErrorKind::Other,
-                    format!("Unsupported sstable version, expected one of [2, 3], found {version}"),
-                ));
+                return Err(io::Error::other(format!(
+                    "Unsupported sstable version, expected one of [2, 3], found {version}"
+                )));
             }
         };
 
@@ -697,10 +696,9 @@ mod tests {
         fn read_bytes(&self, range: Range<usize>) -> std::io::Result<OwnedBytes> {
             let allowed_range = self.allowed_range.lock().unwrap();
             if !allowed_range.contains(&range.start) || !allowed_range.contains(&(range.end - 1)) {
-                return Err(std::io::Error::new(
-                    std::io::ErrorKind::Other,
-                    format!("invalid range, allowed {allowed_range:?}, requested {range:?}"),
-                ));
+                return Err(std::io::Error::other(format!(
+                    "invalid range, allowed {allowed_range:?}, requested {range:?}"
+                )));
             }
 
             Ok(self.bytes.slice(range))

sstable/src/lib.rs

@@ -1,3 +1,5 @@
+#![allow(clippy::manual_div_ceil)]
+
 //! `tantivy_sstable` is a crate that provides a sorted string table data structure.
 //!
 //! It is used in `tantivy` to store the term dictionary.

sstable/src/sstable_index_v3.rs

@@ -394,7 +394,7 @@ impl SSTableIndexBuilder {
 
 fn fst_error_to_io_error(error: tantivy_fst::Error) -> io::Error {
     match error {
-        tantivy_fst::Error::Fst(fst_error) => io::Error::new(io::ErrorKind::Other, fst_error),
+        tantivy_fst::Error::Fst(fst_error) => io::Error::other(fst_error),
         tantivy_fst::Error::Io(ioerror) => ioerror,
     }
 }

stacker/src/fastcpy.rs

@@ -10,8 +10,7 @@ pub fn fast_short_slice_copy(src: &[u8], dst: &mut [u8]) {
     #[track_caller]
     fn len_mismatch_fail(dst_len: usize, src_len: usize) -> ! {
         panic!(
-            "source slice length ({}) does not match destination slice length ({})",
-            src_len, dst_len,
+            "source slice length ({src_len}) does not match destination slice length ({dst_len})",
         );
     }
 

stacker/src/lib.rs

@@ -1,5 +1,3 @@
-#![cfg_attr(all(feature = "unstable", test), feature(test))]
-
 #[cfg(all(test, feature = "unstable"))]
 extern crate test;