d377a999cb
Signed-off-by: flip1995 <hello@philkrones.com> Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
45 lines
1.3 KiB
Rust
45 lines
1.3 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015-2019 Matthias Beyer <mail@beyermatthias.de> and contributors
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; version
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// 2.1 of the License.
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//
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// This library 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 GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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use filters::filter::Filter;
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pub trait NextWhere<T> {
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type Item;
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fn next_where<F>(&mut self, f: &F) -> Option<Self::Item>
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where F: Filter<T>;
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}
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impl<T, I> NextWhere<T> for I
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where I: Iterator<Item = T>
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{
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type Item = T;
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fn next_where<F>(&mut self, f: &F) -> Option<Self::Item>
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where F: Filter<T>
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{
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for next in self {
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if f.filter(&next) {
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return Some(next);
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}
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}
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None
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}
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}
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