mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-07-08 03:07:22 +00:00
Shaun Wang
135cce9055
* Add Xcm sender. * Rename XCM sender and add description. * Update copyright header. Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
43 lines
1.5 KiB
Rust
43 lines
1.5 KiB
Rust
// Copyright 2021 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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//! Xcm sender for relay chain.
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use parity_scale_codec::Encode;
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use sp_std::marker::PhantomData;
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use xcm::{VersionedXcm, v0::{SendXcm, MultiLocation, Junction, Xcm, Result, Error}};
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use runtime_parachains::{configuration, dmp};
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/// Xcm sender for relay chain. It only sends downward message.
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pub struct RelayChainXcmSender<T>(PhantomData<T>);
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impl<T: configuration::Config + dmp::Config> SendXcm for RelayChainXcmSender<T> {
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fn send_xcm(dest: MultiLocation, msg: Xcm) -> Result {
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if let MultiLocation::X1(Junction::Parachain { id }) = dest {
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// Downward message passing.
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let config = <configuration::Module<T>>::config();
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<dmp::Module<T>>::queue_downward_message(
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&config,
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id.into(),
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VersionedXcm::from(msg).encode(),
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).map_err(Into::<Error>::into)?;
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Ok(())
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} else {
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Err(Error::CannotReachDestination)
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}
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}
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}
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