mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 15:47:58 +00:00
Vivek Pandya
bc53b9a03a
* Change copyright year to 2023 from 2022 * Fix incorrect update of copyright year * Remove years from copy right header * Fix remaining files * Fix typo in a header and remove update-copyright.sh
64 lines
2.1 KiB
Rust
64 lines
2.1 KiB
Rust
// This file is part of Substrate.
|
|
|
|
// Copyright (C) Parity Technologies (UK) Ltd.
|
|
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
//! Aura (Authority-Round) digests
|
|
//!
|
|
//! This implements the digests for AuRa, to allow the private
|
|
//! `CompatibleDigestItem` trait to appear in public interfaces.
|
|
|
|
use crate::AURA_ENGINE_ID;
|
|
use codec::{Codec, Encode};
|
|
use sp_consensus_slots::Slot;
|
|
use sp_runtime::generic::DigestItem;
|
|
|
|
/// A digest item which is usable with aura consensus.
|
|
pub trait CompatibleDigestItem<Signature>: Sized {
|
|
/// Construct a digest item which contains a signature on the hash.
|
|
fn aura_seal(signature: Signature) -> Self;
|
|
|
|
/// If this item is an Aura seal, return the signature.
|
|
fn as_aura_seal(&self) -> Option<Signature>;
|
|
|
|
/// Construct a digest item which contains the slot number
|
|
fn aura_pre_digest(slot: Slot) -> Self;
|
|
|
|
/// If this item is an AuRa pre-digest, return the slot number
|
|
fn as_aura_pre_digest(&self) -> Option<Slot>;
|
|
}
|
|
|
|
impl<Signature> CompatibleDigestItem<Signature> for DigestItem
|
|
where
|
|
Signature: Codec,
|
|
{
|
|
fn aura_seal(signature: Signature) -> Self {
|
|
DigestItem::Seal(AURA_ENGINE_ID, signature.encode())
|
|
}
|
|
|
|
fn as_aura_seal(&self) -> Option<Signature> {
|
|
self.seal_try_to(&AURA_ENGINE_ID)
|
|
}
|
|
|
|
fn aura_pre_digest(slot: Slot) -> Self {
|
|
DigestItem::PreRuntime(AURA_ENGINE_ID, slot.encode())
|
|
}
|
|
|
|
fn as_aura_pre_digest(&self) -> Option<Slot> {
|
|
self.pre_runtime_try_to(&AURA_ENGINE_ID)
|
|
}
|
|
}
|