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// Copyright 2015-2020 Parity Technologies (UK) Ltd. // This file is part of Tetsy Vapory. // Tetsy Vapory 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. // Tetsy Vapory 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 Tetsy Vapory. If not, see <http://www.gnu.org/licenses/>. //! Provides a `H256FastMap` type with H256 keys and fast hashing function. extern crate vapory_types; extern crate tetsy_plain_hasher; use vapory_types::H256; use std::hash; use std::collections::{HashMap, HashSet}; use tetsy_plain_hasher::PlainHasher; /// Specialized version of `HashMap` with H256 keys and fast hashing function. pub type H256FastMap<T> = HashMap<H256, T, hash::BuildHasherDefault<PlainHasher>>; /// Specialized version of HashSet with H256 values and fast hashing function. pub type H256FastSet = HashSet<H256, hash::BuildHasherDefault<PlainHasher>>; #[cfg(test)] mod tests { use super::*; #[test] fn test_works() { let mut h = H256FastMap::default(); h.insert(H256::from_low_u64_be(123), "abc"); } }