Function pair_valid_items_with_slice

utils/src/iter.rs:48–64

Maps supplied iterator and attempts to pair each successfully validated item with a corresponding item from the slice. Validation errors will be propagated without looking at them.

(
    iter: I,
    validator: V,
    pair_with: &'pairs [Pair],
)

/// with a corresponding item from the slice.
/// Validation errors will be propagated without looking at them.
pub fn pair_valid_items_with_slice<'iter, 'pairs, I, Item, Pair, E, V>(
    iter: I,
    validator: V,
    pair_with: &'pairs [Pair],
) -> impl Iterator<Item = Result<(&'pairs Pair, Item), E>> + 'iter
where
    'pairs: 'iter,
    I: IntoIterator<Item = (usize, Item)> + 'iter,
    Item: 'iter,
    V: SeqValidator<(usize, Item)> + 'iter,
    E: From<IndexIsOutOfBounds> + From<V::Failure> + 'iter,
{
    try_pair_with_slice(
        validate(iter, validator).map(|res| res.map_err(E::from)),
        pair_with,
    )
}

/// Ensures that the given iterator satisfies provided validator for each item.
/// The supplied option will be modified to `V::Failure` in case of failure, and iteration will be aborted.