Fixed clippy for 1.60

src/array/binary/mutable.rs

@@ -136,7 +136,7 @@ impl<O: Offset> MutableBinaryArray<O> {
         let value = self.values.split_off(value_start);
         self.validity
             .as_mut()
-            .map(|x| x.pop()?.then(|| ()))
+            .map(|x| x.pop()?.then_some(()))
             .unwrap_or_else(|| Some(()))
             .map(|_| value)
     }

src/array/boolean/mutable.rs

@@ -110,7 +110,7 @@ impl MutableBooleanArray {
         let value = self.values.pop()?;
         self.validity
             .as_mut()
-            .map(|x| x.pop()?.then(|| value))
+            .map(|x| x.pop()?.then_some(value))
             .unwrap_or_else(|| Some(value))
     }
 

src/array/fixed_size_binary/mutable.rs

@@ -122,7 +122,7 @@ impl MutableFixedSizeBinaryArray {
         let value = self.values.split_off(value_start);
         self.validity
             .as_mut()
-            .map(|x| x.pop()?.then(|| ()))
+            .map(|x| x.pop()?.then_some(()))
             .unwrap_or_else(|| Some(()))
             .map(|_| value)
     }

src/array/primitive/mutable.rs

@@ -160,7 +160,7 @@ impl<T: NativeType> MutablePrimitiveArray<T> {
         let value = self.values.pop()?;
         self.validity
             .as_mut()
-            .map(|x| x.pop()?.then(|| value))
+            .map(|x| x.pop()?.then_some(value))
             .unwrap_or_else(|| Some(value))
     }
 

src/array/utf8/mutable.rs

@@ -213,7 +213,7 @@ impl<O: Offset> MutableUtf8Array<O> {
         let value = self.values.split_off(value_start);
         self.validity
             .as_mut()
-            .map(|x| x.pop()?.then(|| ()))
+            .map(|x| x.pop()?.then_some(()))
             .unwrap_or_else(|| Some(()))
             .map(|_|
                 // soundness: we always check for utf8 soundness on constructors.

src/io/parquet/write/dictionary.rs

@@ -47,7 +47,7 @@ fn serialize_keys_values<K: DictionaryKey>(
         // discard indices whose values are null.
         let keys = keys
             .zip(validity.iter())
-            .filter_map(|(key, is_valid)| is_valid.then(|| key));
+            .filter_map(|(key, is_valid)| is_valid.then_some(key));
         let num_bits = utils::get_bit_width(keys.clone().max().unwrap_or(0) as u64);
 
         let keys = utils::ExactSizedIter::new(keys, array.len() - validity.unset_bits());