use vortex_error::VortexResult;

/// Trait for arrays that support iterative access to their elements.
pub trait ArrayAccessor<Item: ?Sized> {
    /// Iterate over each element of the array, in-order.
    ///
    /// The function `f` will be passed an [`Iterator`], it can call [`next`][Iterator::next] on the
    /// iterator [`len`][crate::ArrayData::len] times. Iterator elements are `Option` types,
    /// regardless of the nullability of the underlying array data.
    fn with_iterator<F, R>(&self, f: F) -> VortexResult<R>
    where
        F: for<'a> FnOnce(&mut dyn Iterator<Item = Option<&'a Item>>) -> R;
}