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Make automatic storage deposits resistant against changing deposit prices (#12083)

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* Require `FixedPointOperand` for Balances

* Delay deposit calculation

* Make refunds pro rata of consumed storage

* Add storage migration

* Fix clippy

* Add liquidity checks

* Fixe delayed deposit limit enforcement

* Defer charges

* Import Vec

* Add try-runtime hooks for migration

* Fix warning

* Adapt to new OnRuntimeUpgrade trait

* Apply suggestions from code review

Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>

* fmt

* Apply suggestions from code review

Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>

* More suggestions from code review

Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>
This commit is contained in:
Alexander Theißen
2022-09-21 19:31:22 +02:00
committed by GitHub
parent cb82064cb8
commit 857c3bf37b
12 changed files with 957 additions and 312 deletions
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substrate/frame/balances/src/lib.rs
+3 -2
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@@ -185,7 +185,7 @@ use sp_runtime::{
AtLeast32BitUnsigned, Bounded, CheckedAdd, CheckedSub, MaybeSerializeDeserialize,
Saturating, StaticLookup, Zero,
},
ArithmeticError, DispatchError, RuntimeDebug,
ArithmeticError, DispatchError, FixedPointOperand, RuntimeDebug,
};
use sp_std::{cmp, fmt::Debug, mem, ops::BitOr, prelude::*, result};
pub use weights::WeightInfo;
@@ -212,7 +212,8 @@ pub mod pallet {
+ MaybeSerializeDeserialize
+ Debug
+ MaxEncodedLen
+ TypeInfo;
+ TypeInfo
+ FixedPointOperand;
/// Handler for the unbalanced reduction when removing a dust account.
type DustRemoval: OnUnbalanced<NegativeImbalance<Self, I>>;