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use filter::Filter;
#[must_use = "filters are lazy and do nothing unless consumed"]
#[derive(Clone)]
pub struct And<T, U> {
a: T,
b: U
}
impl<T, U> And<T, U> {
pub fn new(a: T, b: U) -> And<T, U> {
And { a: a, b: b }
}
}
impl<I, T: Filter<I>, U: Filter<I>> Filter<I> for And<T, U> {
fn filter(&self, e: &I) -> bool {
self.a.filter(e) && self.b.filter(e)
}
}
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