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decouple transaction payment and currency (#6912)

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* wip: setup types

* fix types

* make tx payment pallet independent from balances

* fix dependent tests

* comments

* restructure a bit and  include more info

* clean up ugly phantom

* reduce complexity

* minor doc improvements

* use shorthand

* doc

* fix line lenght and style

* readd BalanceOf

* some clarifications and readability improvements

* move balance type to OnChargeTransaction

* remove noise

* fix style

* Apply suggestions from code review

improved documentation

Co-authored-by: Alexander Theißen <alex.theissen@me.com>

* Improve naming and documentation

Apply suggestions from code review

Co-authored-by: Alexander Theißen <alex.theissen@me.com>

* Apply suggestions from code review

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* always call withdraw_fee

* move NegativeImbalanceOf to payment module

* fix unused import

Co-authored-by: Alexander Theißen <alex.theissen@me.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
This commit is contained in:
Albrecht
2020-10-30 13:27:04 +01:00
committed by GitHub
parent e1b56f8dd3
commit b7205d4ae0
7 changed files with 185 additions and 78 deletions
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substrate/bin/node/runtime/src/lib.rs
+2 -3
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@@ -64,7 +64,7 @@ use pallet_grandpa::fg_primitives;
use pallet_im_online::sr25519::AuthorityId as ImOnlineId;
use sp_authority_discovery::AuthorityId as AuthorityDiscoveryId;
use pallet_transaction_payment_rpc_runtime_api::RuntimeDispatchInfo;
pub use pallet_transaction_payment::{Multiplier, TargetedFeeAdjustment};
pub use pallet_transaction_payment::{Multiplier, TargetedFeeAdjustment, CurrencyAdapter};
use pallet_session::{historical as pallet_session_historical};
use sp_inherents::{InherentData, CheckInherentsResult};
use static_assertions::const_assert;
@@ -360,8 +360,7 @@ parameter_types! {
}
impl pallet_transaction_payment::Trait for Runtime {
type Currency = Balances;
type OnTransactionPayment = DealWithFees;
type OnChargeTransaction = CurrencyAdapter<Balances, DealWithFees>;
type TransactionByteFee = TransactionByteFee;
type WeightToFee = IdentityFee<Balance>;
type FeeMultiplierUpdate =