mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-30 04:41:03 +00:00
Guillaume Thiolliere
2d4aa3a42e
* rename Trait -> Config * revert diener changes * rename HostConfig to ActiveConfig as more meaningful * fix merge * "Update Substrate" * cargo update -p sp-io Co-authored-by: parity-processbot <>
60 lines
2.0 KiB
Rust
60 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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//! Declaration of the parachain specific origin and a pallet that hosts it.
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use sp_std::result;
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use sp_runtime::traits::BadOrigin;
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use primitives::v1::Id as ParaId;
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use parity_scale_codec::{Decode, Encode};
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/// Origin for the parachains.
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#[derive(PartialEq, Eq, Clone, Encode, Decode, sp_core::RuntimeDebug)]
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pub enum Origin {
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/// It comes from a parachain.
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Parachain(ParaId),
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}
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/// Ensure that the origin `o` represents a parachain.
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/// Returns `Ok` with the parachain ID that effected the extrinsic or an `Err` otherwise.
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pub fn ensure_parachain<OuterOrigin>(o: OuterOrigin) -> result::Result<ParaId, BadOrigin>
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where OuterOrigin: Into<result::Result<Origin, OuterOrigin>>
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{
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match o.into() {
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Ok(Origin::Parachain(id)) => Ok(id),
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_ => Err(BadOrigin),
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}
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}
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/// The origin module.
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pub trait Config: frame_system::Config {}
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frame_support::decl_module! {
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/// There is no way to register an origin type in `construct_runtime` without a pallet the origin
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/// belongs to.
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///
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/// This module fulfills only the single purpose of housing the `Origin` in `construct_runtime`.
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///
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// ideally, though, the `construct_runtime` should support a free-standing origin.
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pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {}
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}
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impl From<u32> for Origin {
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fn from(id: u32) -> Origin {
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Origin::Parachain(id.into())
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}
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}
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