mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-07-14 16:45:45 +00:00
Bastian Köcher
46 lines
1.4 KiB
Rust
46 lines
1.4 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 2020-2022 Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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mod mmr;
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pub mod storage;
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pub mod utils;
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use crate::primitives::FullLeaf;
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use sp_runtime::traits;
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pub use self::mmr::{verify_leaf_proof, Mmr};
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/// Node type for runtime `T`.
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pub type NodeOf<T, I, L> = Node<<T as crate::Config<I>>::Hashing, L>;
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/// A node stored in the MMR.
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pub type Node<H, L> = crate::primitives::DataOrHash<H, L>;
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/// Default Merging & Hashing behavior for MMR.
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pub struct Hasher<H, L>(sp_std::marker::PhantomData<(H, L)>);
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impl<H: traits::Hash, L: FullLeaf> mmr_lib::Merge for Hasher<H, L> {
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type Item = Node<H, L>;
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fn merge(left: &Self::Item, right: &Self::Item) -> Self::Item {
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let mut concat = left.hash().as_ref().to_vec();
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concat.extend_from_slice(right.hash().as_ref());
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Node::Hash(<H as traits::Hash>::hash(&concat))
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}
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}
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