mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-27 11:38:01 +00:00
André Silva
c4aa597516
This was removed in https://github.com/paritytech/substrate/pull/5291 but is still too early to do it as it requires nodes still on Polkadot v0.7.26 to resync from scratch.
56 lines
1.9 KiB
Rust
56 lines
1.9 KiB
Rust
// Copyright 2019-2020 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate 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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// Substrate 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 Substrate. If not, see <http://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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