77 lines
2.1 KiB
Rust
77 lines
2.1 KiB
Rust
// Copyright (C) Parity Technologies (UK) Ltd.
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// This file is part of Pezkuwi.
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// Pezkuwi 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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// Pezkuwi 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 Pezkuwi. If not, see <http://www.gnu.org/licenses/>.
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//! Declaration of the teyrchain specific origin and a pallet that hosts it.
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use core::result;
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use pezkuwi_primitives::Id as ParaId;
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use sp_runtime::traits::BadOrigin;
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pub use pallet::*;
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/// Ensure that the origin `o` represents a teyrchain.
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/// Returns `Ok` with the teyrchain ID that effected the extrinsic or an `Err` otherwise.
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pub fn ensure_teyrchain<OuterOrigin>(o: OuterOrigin) -> result::Result<ParaId, BadOrigin>
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where
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OuterOrigin: Into<result::Result<Origin, OuterOrigin>>,
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{
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match o.into() {
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Ok(Origin::Teyrchain(id)) => Ok(id),
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_ => Err(BadOrigin),
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}
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}
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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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// ideally, though, the `construct_runtime` should support a free-standing origin.
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#[frame_support::pallet]
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pub mod pallet {
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use super::*;
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use frame_support::pallet_prelude::*;
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#[pallet::pallet]
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pub struct Pallet<T>(_);
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#[pallet::config]
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pub trait Config: frame_system::Config {}
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/// Origin for the teyrchains.
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#[pallet::origin]
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#[derive(
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PartialEq,
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Eq,
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Clone,
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Encode,
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Decode,
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DecodeWithMemTracking,
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Debug,
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scale_info::TypeInfo,
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MaxEncodedLen,
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)]
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pub enum Origin {
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/// It comes from a teyrchain.
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Teyrchain(ParaId),
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}
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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::Teyrchain(id.into())
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}
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}
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