feat/refactor(rlp): improve implementations

crates/primitives/src/bits/macros.rs

@@ -380,7 +380,7 @@ macro_rules! impl_rlp {
     ($t:ty) => {
         impl $crate::private::alloy_rlp::Decodable for $t {
             #[inline]
-            fn decode(buf: &mut &[u8]) -> Result<Self, $crate::private::alloy_rlp::DecodeError> {
+            fn decode(buf: &mut &[u8]) -> $crate::private::alloy_rlp::Result<Self> {
                 $crate::private::alloy_rlp::Decodable::decode(buf).map(Self)
             }
         }

crates/primitives/src/bits/rlp.rs

@@ -3,7 +3,7 @@ use alloy_rlp::{impl_max_encoded_len, length_of_length, Decodable, Encodable};
 
 impl<const N: usize> Decodable for FixedBytes<N> {
     #[inline]
-    fn decode(buf: &mut &[u8]) -> Result<Self, alloy_rlp::DecodeError> {
+    fn decode(buf: &mut &[u8]) -> alloy_rlp::Result<Self> {
         Decodable::decode(buf).map(Self)
     }
 }

crates/primitives/src/bytes/rlp.rs

@@ -2,17 +2,20 @@ use super::Bytes;
 use alloy_rlp::{Decodable, Encodable};
 
 impl Encodable for Bytes {
+    #[inline]
     fn length(&self) -> usize {
         self.0.length()
     }
 
+    #[inline]
     fn encode(&self, out: &mut dyn bytes::BufMut) {
         self.0.encode(out)
     }
 }
 
 impl Decodable for Bytes {
-    fn decode(buf: &mut &[u8]) -> Result<Self, alloy_rlp::DecodeError> {
-        Ok(Self(bytes::Bytes::decode(buf)?))
+    #[inline]
+    fn decode(buf: &mut &[u8]) -> Result<Self, alloy_rlp::Error> {
+        bytes::Bytes::decode(buf).map(Self)
     }
 }

crates/rlp/Cargo.toml

@@ -18,15 +18,17 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
-arrayvec.workspace = true
 bytes.workspace = true
-
 alloy-rlp-derive = { workspace = true, optional = true }
+arrayvec = { workspace = true, optional = true }
+smol_str = { version = "0.2", default-features = false, optional = true }
 
 [dev-dependencies]
 hex-literal.workspace = true
 
 [features]
 default = ["std"]
-std = ["arrayvec/std", "bytes/std"]
+std = ["bytes/std", "arrayvec?/std", "smol_str?/std"]
 derive = ["dep:alloy-rlp-derive"]
+arrayvec = ["dep:arrayvec"]
+smol_str = ["dep:smol_str"]