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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2019 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
}
}
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