feat: Add Solana address type (#88)

Cargo.toml

@@ -20,6 +20,7 @@ members = [
 	"primitives/ethereum",
 	"primitives/nostr",
 	"primitives/runtime",
+	"primitives/solana",
 	"runtime/common",
 	"vendor/composable/composable-support",
 	"vendor/composable/vm",
@@ -55,6 +56,7 @@ np-cosmos = { path = "primitives/cosmos", default-features = false }
 np-ethereum = { path = "primitives/ethereum", default-features = false }
 np-nostr = { path = "primitives/nostr", default-features = false }
 np-runtime = { path = "primitives/runtime", default-features = false }
+np-solana = { path = "primitives/solana", default-features = false }
 pallet-cosmos = { path = "frame/cosmos", default-features = false }
 pallet-cosmos-types = { path = "frame/cosmos/types", default-features = false }
 pallet-cosmos-x-auth = { path = "frame/cosmos/x/auth", default-features = false }

primitives/solana/Cargo.toml

@@ -0,0 +1,31 @@
+[package]
+name = "np-solana"
+version = "0.4.0"
+authors = ["Haderech Pte. Ltd."]
+edition = "2021"
+license = "Apache-2.0"
+repository = "https://github.com/noirhq/noir.git"
+publish = false
+
+[dependencies]
+bs58 = { version = "0.5.1", default-features = false, optional = true }
+buidl = { version = "0.1.1", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6", default-features = false, features = ["derive"] }
+scale-info = { version = "2.11", default-features = false, features = ["derive"] }
+serde = { version = "1.0", default-features = false, optional = true }
+sp-core = { git = "https://github.com/paritytech/polkadot-sdk", branch = "stable2409", default-features = false }
+
+[features]
+default = ["std"]
+std = [
+	"bs58?/std",
+	"buidl/std",
+	"parity-scale-codec/std",
+	"scale-info/std",
+	"serde/std",
+	"sp-core/std",
+]
+serde = [
+	"dep:serde",
+	"bs58/alloc",
+]

primitives/solana/src/lib.rs

@@ -0,0 +1,113 @@
+// This file is part of Noir.
+
+// Copyright (c) Haderech Pte. Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Noir primitive types for Solana compatibility.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+extern crate alloc;
+
+#[cfg(feature = "serde")]
+use alloc::string::String;
+use buidl::FixedBytes;
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Serialize};
+use sp_core::{ed25519, H256};
+
+/// Solana address.
+#[derive(FixedBytes)]
+#[buidl(substrate(Core, Codec, TypeInfo))]
+pub struct Address([u8; 32]);
+
+impl From<H256> for Address {
+	fn from(h: H256) -> Self {
+		Self(h.0)
+	}
+}
+
+impl From<Address> for H256 {
+	fn from(v: Address) -> Self {
+		Self(v.0)
+	}
+}
+
+impl From<ed25519::Public> for Address {
+	fn from(key: ed25519::Public) -> Self {
+		Address(key.0)
+	}
+}
+
+#[cfg(feature = "serde")]
+impl core::fmt::Display for Address {
+	fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
+		write!(f, "{}", bs58::encode(&self.0).into_string())
+	}
+}
+
+#[cfg(feature = "serde")]
+impl core::str::FromStr for Address {
+	type Err = &'static str;
+
+	fn from_str(s: &str) -> Result<Self, Self::Err> {
+		Ok(Address(bs58::decode(s.as_bytes()).into_array_const().map_err(|_| "invalid address")?))
+	}
+}
+
+impl core::fmt::Debug for Address {
+	fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
+		write!(f, "{}", sp_core::hexdisplay::HexDisplay::from(&self.0))
+	}
+}
+
+#[cfg(feature = "serde")]
+impl Serialize for Address {
+	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+	where
+		S: serde::Serializer,
+	{
+		use alloc::string::ToString;
+		serializer.serialize_str(&self.to_string())
+	}
+}
+
+#[cfg(feature = "serde")]
+impl<'de> Deserialize<'de> for Address {
+	fn deserialize<D>(deserializer: D) -> Result<Address, D::Error>
+	where
+		D: serde::Deserializer<'de>,
+	{
+		use core::str::FromStr;
+		let s = String::deserialize(deserializer)?;
+		Address::from_str(&s).map_err(serde::de::Error::custom)
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+	use sp_core::{ed25519, Pair};
+
+	fn dev_public() -> ed25519::Public {
+		ed25519::Pair::from_string("//Alice", None).unwrap().public()
+	}
+
+	#[test]
+	fn display_solana_address() {
+		let alice = "ADFCNGW3av5BR6Jm5mvjEfdTGqcsfFQWPEvkB47AHHcq";
+		assert_eq!(Address::from(dev_public()).to_string(), alice);
+	}
+}