git.delta.rocks / unique-network / refs/commits / 93ced84d66b3

1use pallet_evm::{Precompile, PrecompileHandle, PrecompileResult, PrecompileSet};2use sp_core::H160;3use sp_std::marker::PhantomData;45use pallet_evm_precompile_simple::{ECRecover};6use sr25519::Sr25519Precompile;78mod sr25519;9mod utils;1011pub struct UniquePrecompiles<R>(PhantomData<R>);1213impl<R> UniquePrecompiles<R>14where15	R: pallet_evm::Config,16{17	pub fn new() -> Self {18		Self(Default::default())19	}20	pub fn used_addresses() -> [H160; 2] {21		[hash(1), hash(20482)]22	}23}24impl<R> PrecompileSet for UniquePrecompiles<R>25where26	R: pallet_evm::Config,27{28	fn execute(&self, handle: &mut impl PrecompileHandle) -> Option<PrecompileResult> {29		match handle.code_address() {30			a if a == hash(1) => Some(ECRecover::execute(handle)),31			// Sr25519     0x500232			a if a == hash(20482) => Some(Sr25519Precompile::<R>::execute(handle)),33			_ => None,34		}35	}3637	fn is_precompile(&self, address: H160) -> bool {38		Self::used_addresses().contains(&address)39	}40}4142fn hash(a: u64) -> H160 {43	H160::from_low_u64_be(a)44}