a0f406e26b
* Upgrade Eth types ethereum-types -> 0.9.2 rlp -> 0.4.6 keccak-hash -> 0.5.0 parity-crypto -> 0.6.2 ethabi -> 0.12.0 ethabi-derive -> 0.12.0 ethabi-contract -> 0.11.0 ethbloom -> 0.9.1 rand -> 0.7.3 trie-standardmap -> 0.15.2 triehash -> 0.5.0 * backport #10714. Small changes, merge fixes Co-authored-by: mdben1247 <mdben1247@users.noreply.github.com>
44 lines
1.5 KiB
Rust
44 lines
1.5 KiB
Rust
// Copyright 2015-2020 Parity Technologies (UK) Ltd.
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// This file is part of OpenEthereum.
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// OpenEthereum 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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// OpenEthereum 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 OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
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//! Provides a `H256FastMap` type with H256 keys and fast hashing function.
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extern crate ethereum_types;
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extern crate plain_hasher;
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use ethereum_types::H256;
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use plain_hasher::PlainHasher;
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use std::{
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collections::{HashMap, HashSet},
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hash,
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};
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/// Specialized version of `HashMap` with H256 keys and fast hashing function.
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pub type H256FastMap<T> = HashMap<H256, T, hash::BuildHasherDefault<PlainHasher>>;
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/// Specialized version of HashSet with H256 values and fast hashing function.
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pub type H256FastSet = HashSet<H256, hash::BuildHasherDefault<PlainHasher>>;
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_works() {
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let mut h = H256FastMap::default();
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h.insert(H256::from_low_u64_be(123), "abc");
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}
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}
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