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pallet-asset-conversion: Decoupling Native Currency Dependancy #2031
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…paritytech#2033) Introduces `UnionOf` types, crafted to merge `fungible` and `fungibles` implementations or two `fungibles` implementations into a single type implementing `fungibles`. This also addresses an issue where `ItemOf` initiates a double drop for an imbalance type, leading to inaccurate total issuance accounting. Find the application of these types in this PR - [link](paritytech#2031), places in code - [1](https://github.com/paritytech/polkadot-sdk/blob/4ec7496fa2632385b08fae860fcf28a523a7b5de/cumulus/parachains/runtimes/assets/asset-hub-kusama/src/lib.rs#L327), [2](https://github.com/paritytech/polkadot-sdk/blob/4ec7496fa2632385b08fae860fcf28a523a7b5de/cumulus/parachains/runtimes/assets/asset-hub-kusama/src/lib.rs#L343). --------- Co-authored-by: Liam Aharon <[email protected]> Co-authored-by: joe petrowski <[email protected]> Co-authored-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: joepetrowski <[email protected]> (cherry picked from commit 0b74812)
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…paritytech#2033) Introduces `UnionOf` types, crafted to merge `fungible` and `fungibles` implementations or two `fungibles` implementations into a single type implementing `fungibles`. This also addresses an issue where `ItemOf` initiates a double drop for an imbalance type, leading to inaccurate total issuance accounting. Find the application of these types in this PR - [link](paritytech#2031), places in code - [1](https://github.com/paritytech/polkadot-sdk/blob/4ec7496fa2632385b08fae860fcf28a523a7b5de/cumulus/parachains/runtimes/assets/asset-hub-kusama/src/lib.rs#L327), [2](https://github.com/paritytech/polkadot-sdk/blob/4ec7496fa2632385b08fae860fcf28a523a7b5de/cumulus/parachains/runtimes/assets/asset-hub-kusama/src/lib.rs#L343). --------- Co-authored-by: Liam Aharon <[email protected]> Co-authored-by: joe petrowski <[email protected]> Co-authored-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: joepetrowski <[email protected]>
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…ytech#2031) closes paritytech#1842 Decoupling Pallet from the Concept of Native Currency Currently, the pallet is intrinsically linked with the concept of native currency, requiring users to provide implementations of the `fungible::*` and `fungibles::*` traits to interact with native and non native assets. This incapsulates some non-related to the pallet complexity and makes it less adaptable in contexts where the native currency concept is absent. With this PR, the dependence on `fungible::*` for liquidity-supplying assets has been removed. Instead, the native and non-native currencies' handling is now overseen by a single type that implements the `fungibles::*` traits. To simplify this integration, types have been introduced to facilitate the creation of a union between `fungible::*` and `fungibles::*` implementations, producing a unified `fungibles::*` type. One of the reasons driving these changes is the ambition to create a more user-friendly API for the `SwapCredit` implementation. Given that it interacts with two distinct credit types from `fungible` and `fungibles`, a unified type was introduced. Clients now manage potential conversion failures for those credit types. In certain contexts, it's vital to guarantee that operations are fail-safe, like in this impl - [PR](paritytech#1845), place in [code](https://github.com/paritytech/polkadot-sdk/blob/20b85a5fada8f55c98ba831964f5866ffeadf4da/cumulus/primitives/utility/src/lib.rs#L429). Additional Updates: - abstracted the pool ID and its account derivation logic via trait bounds, along with common implementation offerings; - removed `inc_providers` on a pool creation for the pool account; - benchmarks: -- swap complexity is N, not const; -- removed `From<u128> + Into<u128>` bound from `T::Balance`; -- removed swap/liquidity/.. amount constants, resolve them dynamically based on pallet configuration; -- migrated to v2 API; - `OnUnbalanced` handler for the pool creation fee, replacing direct transfers to a specified account ID; - renamed `MultiAssetId` to `AssetKind` aligning with naming across frame crates; related PRs: - (depends) paritytech#1677 - (caused) paritytech#2033 - (caused) paritytech#1876 --------- Co-authored-by: joe petrowski <[email protected]> Co-authored-by: Liam Aharon <[email protected]>
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closes #1842
Decoupling Pallet from the Concept of Native Currency
Currently, the pallet is intrinsically linked with the concept of native currency, requiring users to provide implementations of the
fungible::*
andfungibles::*
traits to interact with native and non native assets. This incapsulates some non-related to the pallet complexity and makes it less adaptable in contexts where the native currency concept is absent.With this PR, the dependence on
fungible::*
for liquidity-supplying assets has been removed. Instead, the native and non-native currencies' handling is now overseen by a single type that implements thefungibles::*
traits. To simplify this integration, types have been introduced to facilitate the creation of a union betweenfungible::*
andfungibles::*
implementations, producing a unifiedfungibles::*
type.One of the reasons driving these changes is the ambition to create a more user-friendly API for the
SwapCredit
implementation. Given that it interacts with two distinct credit types fromfungible
andfungibles
, a unified type was introduced. Clients now manage potential conversion failures for those credit types. In certain contexts, it's vital to guarantee that operations are fail-safe, like in this impl - PR, place in code.Additional Updates:
inc_providers
on a pool creation for the pool account;-- swap complexity is N, not const;
-- removed
From<u128> + Into<u128>
bound fromT::Balance
;-- removed swap/liquidity/.. amount constants, resolve them dynamically based on pallet configuration;
-- migrated to v2 API;
OnUnbalanced
handler for the pool creation fee, replacing direct transfers to a specified account ID;MultiAssetId
toAssetKind
aligning with naming across frame crates;related PRs:
UnionOf
types for mergedfungible
andfungibles
implementations #2033OnUnbalanced
trait #1876