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// Copyright (C) 2019-2021 Aleo Systems Inc. // This file is part of the Leo library. // The Leo library 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. // The Leo library 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 the Leo library. If not, see <https://www.gnu.org/licenses/>. mod bool_and; pub use bool_and::*; mod set_append; pub use set_append::*; mod vec_append; pub use vec_append::*; pub trait Monoid: Default { fn append(self, other: Self) -> Self; fn append_all(self, others: impl Iterator<Item = Self>) -> Self { let mut current = self; for item in others { current = current.append(item); } current } fn append_option(self, other: Option<Self>) -> Self { match other { None => self, Some(other) => self.append(other), } } }