git.delta.rocks / unique-network / refs/commits / 1e5b2476acbf

1use crate::Config;2use evm_coder::{abi::AbiType, AbiCoder, ToLog, generate_stubgen, solidity_interface, types::*};3use frame_support::traits::Currency;4use pallet_common::erc::{CommonEvmHandler, CrossAccountId, PrecompileHandle, PrecompileResult};5use pallet_evm_coder_substrate::{6	call, dispatch_to_evm,7	execution::{PreDispatch, Result},8	frontier_contract, WithRecorder, SubstrateRecorder,9};10use sp_core::{U256, Get};11use sp_std::vec::Vec;1213frontier_contract! {14	macro_rules! NativeFungibleHandle_result {...}15	impl<T: Config> Contract for NativeFungibleHandle<T> {...}16}1718#[derive(ToLog)]19pub enum ERC20Events {20	Transfer {21		#[indexed]22		from: Address,23		#[indexed]24		to: Address,25		value: U256,26	},27	Approval {28		#[indexed]29		owner: Address,30		#[indexed]31		spender: Address,32		value: U256,33	},34}3536pub struct NativeFungibleHandle<T: Config>(SubstrateRecorder<T>);3738impl<T: Config> WithRecorder<T> for NativeFungibleHandle<T> {39	fn recorder(&self) -> &pallet_evm_coder_substrate::SubstrateRecorder<T> {40		&self.041	}42	fn into_recorder(self) -> pallet_evm_coder_substrate::SubstrateRecorder<T> {43		self.044	}45}4647#[solidity_interface(name = ERC20, events(ERC20Events), enum(derive(PreDispatch)), enum_attr(weight), expect_selector = 0x942e8b22)]48impl<T: Config> NativeFungibleHandle<T> {49	fn allowance(&self, owner: Address, spender: Address) -> Result<U256> {50		Ok(U256::zero())51	}5253	// #[weight(<SelfWeightOf<T>>::approve())]54	fn approve(&mut self, caller: Caller, spender: Address, amount: U256) -> Result<bool> {55		// self.consume_store_reads(1)?;56		Err("Approve not supported now".into())57	}58	fn balance_of(&self, owner: Address) -> Result<U256> {59		// self.consume_store_reads(1)?;60		let owner = T::CrossAccountId::from_eth(owner);61		let balance = <T as Config>::Currency::free_balance(owner.as_sub());62		Ok(balance.into())63	}6465	fn decimals(&self) -> Result<u8> {66		Ok(T::Decimals::get())67	}6869	fn name(&self) -> Result<String> {70		Ok(T::Name::get())71	}7273	fn symbol(&self) -> Result<String> {74		Ok(T::Symbol::get())75	}7677	fn total_supply(&self) -> Result<U256> {78		// self.consume_store_reads(1)?;79		let total = <T as Config>::Currency::total_issuance();80		Ok(total.into())81	}8283	// #[weight(<SelfWeightOf<T>>::transfer())]84	fn transfer(&mut self, caller: Caller, to: Address, amount: U256) -> Result<bool> {85		// let caller = T::CrossAccountId::from_eth(caller);86		// let to = T::CrossAccountId::from_eth(to);87		// let amount = amount.try_into().map_err(|_| "amount overflow")?;88		// let budget = self89		// 	.recorder90		// 	.weight_calls_budget(<StructureWeight<T>>::find_parent());9192		// <Pallet<T>>::transfer(self, &caller, &to, amount, &budget).map_err(|_| "transfer error")?;93		// Ok(true)94		todo!()95	}9697	// #[weight(<SelfWeightOf<T>>::transfer_from())]98	fn transfer_from(99		&mut self,100		caller: Caller,101		from: Address,102		to: Address,103		amount: U256,104	) -> Result<bool> {105		// let caller = T::CrossAccountId::from_eth(caller);106		// let from = T::CrossAccountId::from_eth(from);107		// let to = T::CrossAccountId::from_eth(to);108		// let amount = amount.try_into().map_err(|_| "amount overflow")?;109		// let budget = self110		// 	.recorder111		// 	.weight_calls_budget(<StructureWeight<T>>::find_parent());112113		// <Pallet<T>>::transfer_from(self, &caller, &from, &to, amount, &budget)114		// 	.map_err(dispatch_to_evm::<T>)?;115		// Ok(true)116		todo!()117	}118}119120#[solidity_interface(121	name = UniqueNativeFungible,122	is(ERC20),123	enum(derive(PreDispatch))124)]125impl<T: Config> NativeFungibleHandle<T> where T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]> {}126127generate_stubgen!(gen_impl, UniqueNativeFungibleCall<()>, true);128generate_stubgen!(gen_iface, UniqueNativeFungibleCall<()>, false);129130impl<T: Config> CommonEvmHandler for NativeFungibleHandle<T>131where132	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,133{134	const CODE: &'static [u8] = include_bytes!("./stubs/UniqueNativeFungible.raw");135136	fn call(self, handle: &mut impl PrecompileHandle) -> Option<PrecompileResult> {137		call::<T, UniqueNativeFungibleCall<T>, _, _>(handle, self)138	}139}