Fix Clippy warning about derivable Default

Author: progval

src/encoding/integer/rle_v1.rs

@@ -234,19 +234,14 @@ impl<N: NInt, R: Read, S: EncodingSign> GenericRle<N> for RleV1Decoder<N, R, S>
 /// 1. `Empty`: The buffer is empty and there are no values to encode.
 /// 2. `Literal`: The encoder is in literal mode, with values saved in buffer.
 /// 3. `Run`: The encoder is in run mode, with a run value, delta, and length.
-#[derive(Debug, Clone, Eq, PartialEq)]
+#[derive(Debug, Clone, Eq, PartialEq, Default)]
 enum RleV1EncodingState<N: NInt> {
+    #[default]
     Empty,
     Literal,
     Run { value: N, delta: i8, length: usize },
 }
 
-impl<N: NInt> Default for RleV1EncodingState<N> {
-    fn default() -> Self {
-        Self::Empty
-    }
-}
-
 /// `RleV1Encoder` is responsible for encoding a stream of integers using the Run Length Encoding (RLE) version 1 format.
 pub struct RleV1Encoder<N: NInt, S: EncodingSign> {
     writer: BytesMut,

src/encoding/integer/rle_v2/mod.rs

@@ -238,8 +238,9 @@ fn delta_encoding_check<N: NInt>(literals: &[N]) -> DeltaEncodingCheckResult<N>
 }
 
 /// Runs are guaranteed to have length > 1.
-#[derive(Debug, Clone, Eq, PartialEq)]
+#[derive(Debug, Clone, Eq, PartialEq, Default)]
 enum RleV2EncodingState<N: NInt> {
+    #[default]
     /// When buffer is empty and no values to encode.
     Empty,
     /// Special state for first value as we determine after the first
@@ -251,12 +252,6 @@ enum RleV2EncodingState<N: NInt> {
     VariableRun { literals: Vec<N> },
 }
 
-impl<N: NInt> Default for RleV2EncodingState<N> {
-    fn default() -> Self {
-        Self::Empty
-    }
-}
-
 pub struct RleV2Encoder<N: NInt, S: EncodingSign> {
     /// Stores the run length encoded sequences.
     data: BytesMut,