More flexible SolEncode implementation for ByteSlice

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Synchronize with `polkadot-sdk/1b1cef306d9ceebf963fd15a04b5c79ee2618bce` ‒ [2675](https://github.com/use-ink/ink/pull/2675)
 - Refactor `AbiEncodeWith::encode_to_slice` - [#2676](https://github.com/use-ink/ink/pull/2676)
 - Refactor `ArgumentList` encoding and abstractions - [#2678](https://github.com/use-ink/ink/pull/2678)
+- More flexible `SolEncode` implementation for `ByteSlice` - [#2681](https://github.com/use-ink/ink/pull/2681)
 
 ### Fixed
 - Fix decoding of `HostFn::minimum_balance` return value - [#2656](https://github.com/use-ink/ink/pull/2656)

crates/primitives/src/sol/bytes.rs

@@ -187,6 +187,18 @@ impl From<u8> for FixedBytes<1> {
     }
 }
 
+impl<const N: usize> From<FixedBytes<N>> for [u8; N] {
+    fn from(value: FixedBytes<N>) -> Self {
+        value.0
+    }
+}
+
+impl From<FixedBytes<1>> for u8 {
+    fn from(value: FixedBytes<1>) -> Self {
+        value.0[0]
+    }
+}
+
 impl<const N: usize> Deref for FixedBytes<N> {
     type Target = [u8; N];
 
@@ -323,6 +335,12 @@ impl From<Box<[u8]>> for DynBytes {
     }
 }
 
+impl From<DynBytes> for Vec<u8> {
+    fn from(value: DynBytes) -> Self {
+        value.0
+    }
+}
+
 impl Deref for DynBytes {
     type Target = [u8];
 
@@ -404,7 +422,7 @@ impl SolTokenType for ByteSlice<'_> {
 impl crate::sol::types::private::Sealed for ByteSlice<'_> {}
 
 // Implements `SolEncode` for `ByteSlice`.
-impl<'a> SolEncode<'a> for ByteSlice<'a> {
+impl<'a> SolEncode<'a> for ByteSlice<'_> {
     type SolType = &'a ByteSlice<'a>;
 
     fn to_sol_type(&'a self) -> Self::SolType {
@@ -419,6 +437,12 @@ impl<'a> From<&'a [u8]> for ByteSlice<'a> {
     }
 }
 
+impl<'a> From<ByteSlice<'a>> for &'a [u8] {
+    fn from(value: ByteSlice<'a>) -> Self {
+        value.0
+    }
+}
+
 impl Deref for ByteSlice<'_> {
     type Target = [u8];