mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-07-07 04:57:22 +00:00
Shawn Tabrizi
fc1153681e
* Land XCM Builder * Clean up Cargo dependencies Co-authored-by: Gavin Wood <gavin@parity.io>
57 lines
2.0 KiB
Rust
57 lines
2.0 KiB
Rust
// Copyright 2020 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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#![cfg_attr(not(feature = "std"), no_std)]
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mod location_conversion;
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pub use location_conversion::{
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Account32Hash, ParentIsDefault, ChildParachainConvertsVia, SiblingParachainConvertsVia, AccountId32Aliases
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};
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mod origin_conversion;
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pub use origin_conversion::{
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SovereignSignedViaLocation, ParentAsSuperuser, ChildSystemParachainAsSuperuser, SiblingSystemParachainAsSuperuser,
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ChildParachainAsNative, SiblingParachainAsNative, RelayChainAsNative, SignedAccountId32AsNative
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};
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mod currency_adapter;
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pub use currency_adapter::CurrencyAdapter;
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use sp_std::marker::PhantomData;
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use xcm_executor::traits::InvertLocation;
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use xcm::v0::{MultiLocation, Junction};
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use frame_support::traits::Get;
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/// Simple location inverter; give it this location's ancestry and it'll
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pub struct LocationInverter<Ancestry>(PhantomData<Ancestry>);
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impl<Ancestry: Get<MultiLocation>> InvertLocation for LocationInverter<Ancestry> {
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fn invert_location(location: &MultiLocation) -> MultiLocation {
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let mut ancestry = Ancestry::get();
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let mut result = location.clone();
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for (i, j) in location.iter_rev()
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.map(|j| match j {
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Junction::Parent => ancestry.take_first().unwrap_or(Junction::OnlyChild),
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_ => Junction::Parent,
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})
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.enumerate()
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{
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*result.at_mut(i).expect("location and result begin equal; same size; qed") = j;
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}
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result
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}
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}
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