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// // imag - the personal information management suite for the commandline // Copyright (C) 2015-2020 Matthias Beyer <mail@beyermatthias.de> and contributors // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; version // 2.1 of the License. // // This 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 // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA // use filters::filter::Filter; pub trait NextWhere<T> { type Item; fn next_where<F>(&mut self, f: &F) -> Option<Self::Item> where F: Filter<T>; } impl<T, I> NextWhere<T> for I where I: Iterator<Item = T> { type Item = T; fn next_where<F>(&mut self, f: &F) -> Option<Self::Item> where F: Filter<T> { for next in self { if f.filter(&next) { return Some(next); } } None } }