`40ef8e0c0f72`

2 files changed

addedpallets/evm-transaction-payment/README.mddiff before after both

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+# Evm transaction payment pallet
+
+pallet-evm-transaction-payment is a bridge between pallet-evm substrate calls and pallet-sponsoring.
+It doesn't provide any sponsoring logic by itself, instead all sponsoring handlers
+are loosly coupled via [`Config::EvmSponsorshipHandler`] trait.
\ No newline at end of file

modifiedpallets/evm-transaction-payment/src/lib.rsdiff before after both

14// You should have received a copy of the GNU General Public License14// You should have received a copy of the GNU General Public License
15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
1616
17#![doc = include_str!("../README.md")]
17#![cfg_attr(not(feature = "std"), no_std)]18#![cfg_attr(not(feature = "std"), no_std)]
19#![deny(missing_docs)]
1820
19use core::marker::PhantomData;21use core::marker::PhantomData;
20use fp_evm::WithdrawReason;22use fp_evm::WithdrawReason;
29pub mod pallet {31pub mod pallet {
30	use super::*;32	use super::*;
3133
32	use frame_support::traits::Currency;
33	use sp_std::vec::Vec;34	use sp_std::vec::Vec;
3435
35	#[pallet::config]36	#[pallet::config]
36	pub trait Config: frame_system::Config + pallet_evm::account::Config {37	pub trait Config: frame_system::Config + pallet_evm::account::Config {
38		/// Loosly-coupled handlers for evm call sponsoring
37		type EvmSponsorshipHandler: SponsorshipHandler<Self::CrossAccountId, (H160, Vec<u8>)>;39		type EvmSponsorshipHandler: SponsorshipHandler<Self::CrossAccountId, (H160, Vec<u8>)>;
38		type Currency: Currency<Self::AccountId>;
39	}40	}
4041
41	#[pallet::pallet]42	#[pallet::pallet]
42	#[pallet::generate_store(pub(super) trait Store)]43	#[pallet::generate_store(pub(super) trait Store)]
43	pub struct Pallet<T>(_);44	pub struct Pallet<T>(_);
44}45}
4546
47/// Implements [`fp_evm::TransactionValidityHack`], which provides sponsor address to pallet-evm
46pub struct TransactionValidityHack<T: Config>(PhantomData<*const T>);48pub struct TransactionValidityHack<T: Config>(PhantomData<*const T>);
47impl<T: Config> fp_evm::TransactionValidityHack<T::CrossAccountId> for TransactionValidityHack<T> {49impl<T: Config> fp_evm::TransactionValidityHack<T::CrossAccountId> for TransactionValidityHack<T> {
48	fn who_pays_fee(origin: H160, reason: &WithdrawReason) -> Option<T::CrossAccountId> {50	fn who_pays_fee(origin: H160, reason: &WithdrawReason) -> Option<T::CrossAccountId> {