Rename Fixed128 to FixedI128.

runtime/common/src/impls.rs

@@ -17,7 +17,7 @@
 //! Auxillary struct/enums for polkadot runtime.
 
 use sp_runtime::traits::{Convert, Saturating};
-use sp_runtime::{FixedPointNumber, Fixed128, Perquintill};
+use sp_runtime::{FixedPointNumber, FixedI128, Perquintill};
 use frame_support::traits::{OnUnbalanced, Imbalance, Currency, Get};
 use crate::{MaximumBlockWeight, NegativeImbalance};
 
@@ -83,8 +83,8 @@ where
 /// https://research.web3.foundation/en/latest/polkadot/Token%20Economics/#relay-chain-transaction-fees
 pub struct TargetedFeeAdjustment<T, R>(sp_std::marker::PhantomData<(T, R)>);
 
-impl<T: Get<Perquintill>, R: system::Trait> Convert<Fixed128, Fixed128> for TargetedFeeAdjustment<T, R> {
-	fn convert(multiplier: Fixed128) -> Fixed128 {
+impl<T: Get<Perquintill>, R: system::Trait> Convert<FixedI128, FixedI128> for TargetedFeeAdjustment<T, R> {
+	fn convert(multiplier: FixedI128) -> FixedI128 {
 		let max_weight = MaximumBlockWeight::get();
 		let block_weight = <system::Module<R>>::block_weight().total().min(max_weight);
 		let target_weight = (T::get() * max_weight) as u128;
@@ -94,14 +94,14 @@ impl<T: Get<Perquintill>, R: system::Trait> Convert<Fixed128, Fixed128> for Targ
 		let positive = block_weight >= target_weight;
 		let diff_abs = block_weight.max(target_weight) - block_weight.min(target_weight);
 		// safe, diff_abs cannot exceed u64 and it can always be computed safely even with the lossy
-		// `Fixed128::saturating_from_rational`.
-		let diff = Fixed128::saturating_from_rational(diff_abs, max_weight.max(1));
+		// `FixedI128::saturating_from_rational`.
+		let diff = FixedI128::saturating_from_rational(diff_abs, max_weight.max(1));
 		let diff_squared = diff.saturating_mul(diff);
 
 		// 0.00004 = 4/100_000 = 40_000/10^9
-		let v = Fixed128::saturating_from_rational(4, 100_000);
+		let v = FixedI128::saturating_from_rational(4, 100_000);
 		// 0.00004^2 = 16/10^10 Taking the future /2 into account... 8/10^10
-		let v_squared_2 = Fixed128::saturating_from_rational(8, 10_000_000_000u64);
+		let v_squared_2 = FixedI128::saturating_from_rational(8, 10_000_000_000u64);
 
 		let first_term = v.saturating_mul(diff);
 		let second_term = v_squared_2.saturating_mul(diff_squared);
@@ -120,7 +120,7 @@ impl<T: Get<Perquintill>, R: system::Trait> Convert<Fixed128, Fixed128> for Targ
 				// multiplier. While at -1, it means that the network is so un-congested that all
 				// transactions have no weight fee. We stop here and only increase if the network
 				// became more busy.
-				.max(Fixed128::saturating_from_integer(-1))
+				.max(FixedI128::saturating_from_integer(-1))
 		}
 	}
 }