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Split fees and tips between author and treasury independently (#5207)

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* Split fees and tips between author and treasury independently

* Docs and cleanup

* Fix test
This commit is contained in:
Gavin Wood
2020-03-12 00:15:39 +01:00
committed by GitHub
parent dc0bf210fb
commit 2387543ecb
3 changed files with 93 additions and 14 deletions
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substrate/bin/node/runtime/src/lib.rs
+16 -7
View File
@@ -24,7 +24,7 @@ use sp_std::prelude::*;
use frame_support::{
construct_runtime, parameter_types, debug,
weights::Weight,
traits::{SplitTwoWays, Currency, Randomness},
traits::{Currency, Randomness, OnUnbalanced, Imbalance},
};
use sp_core::u32_trait::{_1, _2, _3, _4};
pub use node_primitives::{AccountId, Signature};
@@ -98,12 +98,21 @@ pub fn native_version() -> NativeVersion {
type NegativeImbalance = <Balances as Currency<AccountId>>::NegativeImbalance;
pub type DealWithFees = SplitTwoWays<
Balance,
NegativeImbalance,
_4, Treasury, // 4 parts (80%) goes to the treasury.
_1, Author, // 1 part (20%) goes to the block author.
>;
pub struct DealWithFees;
impl OnUnbalanced<NegativeImbalance> for DealWithFees {
fn on_unbalanceds<B>(mut fees_then_tips: impl Iterator<Item=NegativeImbalance>) {
if let Some(fees) = fees_then_tips.next() {
// for fees, 80% to treasury, 20% to author
let mut split = fees.ration(80, 20);
if let Some(tips) = fees_then_tips.next() {
// for tips, if any, 80% to treasury, 20% to author (though this can be anything)
tips.ration_merge_into(80, 20, &mut split);
}
Treasury::on_unbalanced(split.0);
Author::on_unbalanced(split.1);
}
}
}
parameter_types! {
pub const BlockHashCount: BlockNumber = 250;