mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-06 16:08:08 +00:00
Bastian Köcher
e3e651f72c
* Happy new year Updates the copyright years and fixes wrong license headers. * Fix the template * Split HEADER into HEADER-APACHE & HEADER-GPL
58 lines
2.0 KiB
Rust
58 lines
2.0 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 2019-2021 Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
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// This program 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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// This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
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//! Migration types for epoch changes.
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use std::collections::BTreeMap;
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use codec::{Encode, Decode};
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use fork_tree::ForkTree;
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use sp_runtime::traits::{Block as BlockT, NumberFor};
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use crate::{Epoch, EpochChanges, PersistedEpoch, PersistedEpochHeader};
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/// Legacy definition of epoch changes.
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#[derive(Clone, Encode, Decode)]
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pub struct EpochChangesV0<Hash, Number, E: Epoch> {
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inner: ForkTree<Hash, Number, PersistedEpoch<E>>,
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}
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/// Type alias for legacy definition of epoch changes.
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pub type EpochChangesForV0<Block, Epoch> = EpochChangesV0<<Block as BlockT>::Hash, NumberFor<Block>, Epoch>;
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impl<Hash, Number, E: Epoch> EpochChangesV0<Hash, Number, E> where
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Hash: PartialEq + Ord + Copy,
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Number: Ord + Copy,
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{
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/// Create a new value of this type from raw.
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pub fn from_raw(inner: ForkTree<Hash, Number, PersistedEpoch<E>>) -> Self {
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Self { inner }
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}
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/// Migrate the type into current epoch changes definition.
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pub fn migrate(self) -> EpochChanges<Hash, Number, E> {
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let mut epochs = BTreeMap::new();
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let inner = self.inner.map(&mut |hash, number, data| {
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let header = PersistedEpochHeader::from(&data);
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epochs.insert((*hash, *number), data);
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header
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});
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EpochChanges { inner, epochs }
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}
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}
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