mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
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8428f678fe
# Note for reviewer
Most changes are just syntax changes necessary for the new version.
Most important files should be the ones under the `xcm` folder.
# Description
Added XCMv4.
## Removed `Multi` prefix
The following types have been renamed:
- MultiLocation -> Location
- MultiAsset -> Asset
- MultiAssets -> Assets
- InteriorMultiLocation -> InteriorLocation
- MultiAssetFilter -> AssetFilter
- VersionedMultiAsset -> VersionedAsset
- WildMultiAsset -> WildAsset
- VersionedMultiLocation -> VersionedLocation
In order to fix a name conflict, the `Assets` in `xcm-executor` were
renamed to `HoldingAssets`, as they represent assets in holding.
## Removed `Abstract` asset id
It was not being used anywhere and this simplifies the code.
Now assets are just constructed as follows:
```rust
let asset: Asset = (AssetId(Location::new(1, Here)), 100u128).into();
```
No need for specifying `Concrete` anymore.
## Outcome is now a named fields struct
Instead of
```rust
pub enum Outcome {
Complete(Weight),
Incomplete(Weight, Error),
Error(Error),
}
```
we now have
```rust
pub enum Outcome {
Complete { used: Weight },
Incomplete { used: Weight, error: Error },
Error { error: Error },
}
```
## Added Reanchorable trait
Now both locations and assets implement this trait, making it easier to
reanchor both.
## New syntax for building locations and junctions
Now junctions are built using the following methods:
```rust
let location = Location {
parents: 1,
interior: [Parachain(1000), PalletInstance(50), GeneralIndex(1984)].into()
};
```
or
```rust
let location = Location::new(1, [Parachain(1000), PalletInstance(50), GeneralIndex(1984)]);
```
And they are matched like so:
```rust
match location.unpack() {
(1, [Parachain(id)]) => ...
(0, Here) => ...,
(1, [_]) => ...,
}
```
This syntax is mandatory in v4, and has been also implemented for v2 and
v3 for easier migration.
This was needed to make all sizes smaller.
# TODO
- [x] Scaffold v4
- [x] Port github.com/paritytech/polkadot/pull/7236
- [x] Remove `Multi` prefix
- [x] Remove `Abstract` asset id
---------
Co-authored-by: command-bot <>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
108 lines
4.4 KiB
Rust
108 lines
4.4 KiB
Rust
// Copyright (C) Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Polkadot is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
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pub use pallet::*;
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#[cfg(feature = "runtime-benchmarks")]
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pub mod benchmarking;
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#[cfg(test)]
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mod mock;
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#[frame_support::pallet]
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pub mod pallet {
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use frame_benchmarking::BenchmarkError;
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use frame_support::{dispatch::GetDispatchInfo, pallet_prelude::Encode};
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use sp_runtime::traits::Dispatchable;
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use xcm::latest::{Asset, Assets, InteriorLocation, Junction, Location, NetworkId, Response};
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#[pallet::config]
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pub trait Config<I: 'static = ()>: frame_system::Config + crate::Config {
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type RuntimeCall: Dispatchable<RuntimeOrigin = Self::RuntimeOrigin>
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+ GetDispatchInfo
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+ From<frame_system::Call<Self>>
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+ Encode;
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/// The type of `fungible` that is being used under the hood.
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///
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/// This is useful for testing and checking.
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type TransactAsset: frame_support::traits::fungible::Mutate<Self::AccountId>;
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/// The response which causes the most runtime weight.
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fn worst_case_response() -> (u64, Response);
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/// The pair of asset collections which causes the most runtime weight if demanded to be
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/// exchanged.
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///
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/// The first element in the returned tuple represents the assets that are being exchanged
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/// from, whereas the second element represents the assets that are being exchanged to.
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///
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/// If set to `Err`, benchmarks which rely on an `exchange_asset` will be skipped.
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fn worst_case_asset_exchange() -> Result<(Assets, Assets), BenchmarkError>;
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/// A `(Location, Junction)` that is one of the `UniversalAliases` configured by the
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/// XCM executor.
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///
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/// If set to `Err`, benchmarks which rely on a universal alias will be skipped.
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fn universal_alias() -> Result<(Location, Junction), BenchmarkError>;
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/// The `Location` and `RuntimeCall` used for successful transaction XCMs.
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///
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/// If set to `Err`, benchmarks which rely on a `transact_origin_and_runtime_call` will be
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/// skipped.
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fn transact_origin_and_runtime_call(
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) -> Result<(Location, <Self as crate::generic::Config<I>>::RuntimeCall), BenchmarkError>;
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/// A valid `Location` we can successfully subscribe to.
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///
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/// If set to `Err`, benchmarks which rely on a `subscribe_origin` will be skipped.
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fn subscribe_origin() -> Result<Location, BenchmarkError>;
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/// Return an origin, ticket, and assets that can be trapped and claimed.
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fn claimable_asset() -> Result<(Location, Location, Assets), BenchmarkError>;
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/// Return an unlocker, owner and assets that can be locked and unlocked.
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fn unlockable_asset() -> Result<(Location, Location, Asset), BenchmarkError>;
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/// A `(Location, NetworkId, InteriorLocation)` we can successfully export message
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/// to.
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///
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/// If set to `Err`, benchmarks which rely on `export_message` will be skipped.
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fn export_message_origin_and_destination(
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) -> Result<(Location, NetworkId, InteriorLocation), BenchmarkError>;
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/// A `(Location, Location)` that is one of the `Aliasers` configured by the XCM
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/// executor.
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///
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/// If set to `Err`, benchmarks which rely on a universal alias will be skipped.
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fn alias_origin() -> Result<(Location, Location), BenchmarkError>;
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/// Returns a valid pallet info for `ExpectPallet` or `QueryPallet` benchmark.
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///
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/// By default returns `frame_system::Pallet` info with expected pallet index `0`.
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fn valid_pallet() -> frame_support::traits::PalletInfoData {
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frame_support::traits::PalletInfoData {
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index: <frame_system::Pallet<Self> as frame_support::traits::PalletInfoAccess>::index(),
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name: <frame_system::Pallet<Self> as frame_support::traits::PalletInfoAccess>::name(),
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module_name: <frame_system::Pallet<Self> as frame_support::traits::PalletInfoAccess>::module_name(),
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crate_version: <frame_system::Pallet<Self> as frame_support::traits::PalletInfoAccess>::crate_version(),
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}
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}
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}
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#[pallet::pallet]
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pub struct Pallet<T, I = ()>(_);
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}
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