mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-31 00:31:02 +00:00
Branislav Kontur
5601f2865b
This PR mainly removes `xcm::v3` stuff from `assets-common` to make it
more generic and facilitate the transition to newer XCM versions. Some
of the implementations here used hard-coded `xcm::v3::Location`, but now
it's up to the runtime to configure according to its needs.
Additional/consequent changes:
- `penpal` runtime uses now `xcm::latest::Location` for `pallet_assets`
as `AssetId`, because we don't care about migrations here
- it pretty much simplify xcm-emulator integration tests, where we don't
need now a lots of boilerplate conversions:
```
v3::Location::try_from(...).expect("conversion works")`
```
- xcm-emulator tests
- split macro `impl_assets_helpers_for_parachain` to the
`impl_assets_helpers_for_parachain` and
`impl_foreign_assets_helpers_for_parachain` (avoids using hard-coded
`xcm::v3::Location`)
71 lines
3.0 KiB
Rust
71 lines
3.0 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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//! Various implementations and utilities for matching and filtering `Location` and
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//! `InteriorLocation` types.
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use frame_support::traits::{Contains, Get};
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use sp_runtime::traits::MaybeEquivalence;
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use sp_std::marker::PhantomData;
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use xcm::latest::{InteriorLocation, Location, NetworkId};
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/// An implementation of `Contains` that checks for `Location` or
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/// `InteriorLocation` if starts with the provided type `T`.
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pub struct StartsWith<T, L = Location>(sp_std::marker::PhantomData<(T, L)>);
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impl<T: Get<L>, L: TryInto<Location> + Clone> Contains<L> for StartsWith<T, L> {
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fn contains(location: &L) -> bool {
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let latest_location: Location =
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if let Ok(location) = (*location).clone().try_into() { location } else { return false };
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let latest_t = if let Ok(location) = T::get().try_into() { location } else { return false };
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latest_location.starts_with(&latest_t)
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}
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}
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impl<T: Get<InteriorLocation>> Contains<InteriorLocation> for StartsWith<T> {
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fn contains(t: &InteriorLocation) -> bool {
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t.starts_with(&T::get())
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}
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}
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/// An implementation of `Contains` that checks for `Location` or
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/// `InteriorLocation` if starts with expected `GlobalConsensus(NetworkId)` provided as type
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/// `T`.
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pub struct StartsWithExplicitGlobalConsensus<T>(sp_std::marker::PhantomData<T>);
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impl<T: Get<NetworkId>> Contains<Location> for StartsWithExplicitGlobalConsensus<T> {
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fn contains(location: &Location) -> bool {
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matches!(location.interior().global_consensus(), Ok(requested_network) if requested_network.eq(&T::get()))
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}
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}
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impl<T: Get<NetworkId>> Contains<InteriorLocation> for StartsWithExplicitGlobalConsensus<T> {
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fn contains(location: &InteriorLocation) -> bool {
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matches!(location.global_consensus(), Ok(requested_network) if requested_network.eq(&T::get()))
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}
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}
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/// An adapter implementation of `MaybeEquivalence` which can convert between the latest `Location`
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/// and other versions that implement `TryInto<Location>` and `TryFrom<Location>`.
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pub struct WithLatestLocationConverter<Target>(PhantomData<Target>);
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impl<Target: TryInto<Location> + TryFrom<Location> + Clone> MaybeEquivalence<Location, Target>
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for WithLatestLocationConverter<Target>
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{
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fn convert(old: &Location) -> Option<Target> {
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(*old).clone().try_into().ok()
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}
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fn convert_back(new: &Target) -> Option<Location> {
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new.clone().try_into().ok()
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}
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}
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