Enum FilterIterator 

pub(crate) enum FilterIterator<M, I> {
    Materialized(M),
    Lazy(I),
}

Holds either materialized rows or a lazy iterator.

This does not implement Iterator on purpose. Callers use Self::for_each or Self::try_for_each so the enum is matched once before the loop, not once per row in next.

Variants

Materialized(M)

Lazy(I)

Implementations

impl<M, I> FilterIterator<M, I>

where M: Iterator, I: Iterator<Item = M::Item>,

pub(crate) fn for_each<F>(self, f: F)

where F: FnMut(M::Item),

pub(crate) fn try_for_each<F, E>(self, f: F) -> Result<(), E>

where F: FnMut(M::Item) -> Result<(), E>,