4 files changed, 5 insertions, 2 deletions
diff --git a/database/src/kv/helpers.rs b/database/src/kv/helpers.rs
index dde067f..a98540f 100644
--- a/database/src/kv/helpers.rs
+++ b/database/src/kv/helpers.rs
@@ -13,7 +13,6 @@ pub fn write_counter(txn: &mut dyn jellykv::Transaction, t: &[u8], value: u64) -
 pub fn read_counter(txn: &dyn jellykv::Transaction, t: &[u8], default: u64) -> Result<u64> {
     Ok(txn
         .get(t)?
-        .map(|k| k.as_slice().try_into().map(RowNum::from_be_bytes).ok())
-        .flatten()
+        .and_then(|k| k.as_slice().try_into().map(RowNum::from_be_bytes).ok())
         .unwrap_or(default))
 }
diff --git a/database/src/kv/index.rs b/database/src/kv/index.rs
index 5505079..0881cb7 100644
--- a/database/src/kv/index.rs
+++ b/database/src/kv/index.rs
@@ -82,6 +82,7 @@ pub fn read_count_index(txn: &dyn jellykv::Transaction, prefix: Vec<u8>) -> Resu
     read_counter(txn, &prefix, 0)
 }
 
+#[allow(clippy::type_complexity)]
 pub fn iter_index<'a>(
     txn: &'a dyn jellykv::Transaction,
     prefix: Vec<u8>,
diff --git a/database/src/kv/merge_iterator.rs b/database/src/kv/merge_iterator.rs
index 8398ba4..e872823 100644
--- a/database/src/kv/merge_iterator.rs
+++ b/database/src/kv/merge_iterator.rs
@@ -7,10 +7,12 @@
 use crate::RowNum;
 use anyhow::Result;
 
+#[allow(clippy::type_complexity)]
 pub struct MergeIterator<'a> {
     iters: Vec<Box<dyn Iterator<Item = Result<(RowNum, Vec<u8>)>> + 'a>>,
 }
 impl<'a> MergeIterator<'a> {
+    #[allow(clippy::type_complexity)]
     pub fn new(iters: Vec<Box<dyn Iterator<Item = Result<(RowNum, Vec<u8>)>> + 'a>>) -> Self {
         Self { iters }
     }
diff --git a/database/src/lib.rs b/database/src/lib.rs
index 62d6073..b315fa6 100644
--- a/database/src/lib.rs
+++ b/database/src/lib.rs
@@ -19,6 +19,7 @@ pub trait Database: Send + Sync {
     fn transaction(&self, f: &mut dyn FnMut(&mut dyn Transaction) -> Result<()>) -> Result<()>;
 }
 
+#[allow(clippy::type_complexity)]
 pub trait Transaction {
     fn insert(&mut self, entry: Box<Object>) -> Result<RowNum>;
     fn remove(&mut self, row: RowNum) -> Result<()>;