Add traits necessary for serai_abi::Transaction to be usable in-runtime

substrate/primitives/Cargo.toml

@@ -20,6 +20,7 @@ zeroize = { version = "^1.5", features = ["derive"] }
 borsh = { version = "1", default-features = false, features = ["derive", "de_strict_order"] }
 
 bitvec = { version = "1", default-features = false, features = ["alloc"] }
+scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["derive"] }
 sp-core = { git = "https://github.com/serai-dex/polkadot-sdk", branch = "serai-next", default-features = false }
 
 ciphersuite = { path = "../../crypto/ciphersuite", default-features = false, features = ["alloc", "ristretto"] }

substrate/primitives/src/address.rs

@@ -23,6 +23,8 @@ const HUMAN_READABLE_PART: bech32::Hrp = bech32::Hrp::parse_unchecked("sri");
 
 /// The address for an account on Serai.
 #[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, Zeroize, BorshSerialize, BorshDeserialize)]
+#[rustfmt::skip]
+#[derive(scale::Encode, scale::Decode)] // This is safe as scale and borsh share an encoding here
 pub struct SeraiAddress(pub [u8; 32]);
 
 impl SeraiAddress {

substrate/primitives/src/sp_borsh.rs

@@ -2,8 +2,6 @@ use borsh::{io::*, BorshSerialize, BorshDeserialize};
 
 use sp_core::{ConstU32, bounded::BoundedVec};
 
-// TODO: Don't serialize this as a Vec<u8>. Shorten the length-prefix, technically encoding as an
-// enum.
 pub fn borsh_serialize_bitvec<W: Write>(
   bitvec: &bitvec::vec::BitVec<u8, bitvec::order::Lsb0>,
   writer: &mut W,
@@ -21,6 +19,8 @@ pub fn borsh_deserialize_bitvec<R: Read>(
 
 type SerializeBoundedVecAs<T> = alloc::vec::Vec<T>;
 
+// TODO: Don't serialize this as a Vec<u8>. Shorten the length-prefix, technically encoding as an
+// enum.
 pub fn borsh_serialize_bounded_vec<W: Write, T: BorshSerialize, const B: u32>(
   bounded: &BoundedVec<T, ConstU32<B>>,
   writer: &mut W,