bulks 0.6.9

Amazing bulks! They are like iterators, but in bulk, and therefore support collection into arrays.
Documentation 
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use core::{iter::Step, ops::{Bound, RangeBounds}};

use currying::RCurry;

moddef::moddef!(
    flat(pub) mod {
        range_inclusive,
        range,
    }
);

pub const trait BoundedRange<T>: ~const RangeBounds<T>
{
    fn steps(&self) -> (usize, Option<usize>)
    where
        T: ~const Step;
    fn start(&self) -> &T;
    fn end(&self) -> &T;
    fn last(&self) -> T
    where
        T: ~const Step + Copy;
    fn inclusive(&self) -> bool
    {
        matches!(self.end_bound(), Bound::Included(_))
    }
}
impl<T> const BoundedRange<T> for core::ops::Range<T>
{
    fn steps(&self) -> (usize, Option<usize>)
    where
        T: ~const Step
    {
        Step::steps_between(self.start(), self.end())
    }
    fn start(&self) -> &T
    {
        &self.start
    }
    fn end(&self) -> &T
    {
        &self.end
    }
    fn last(&self) -> T
    where
        T: ~const Step + Copy
    {
        self.end
    }
    fn inclusive(&self) -> bool
    {
        false
    }
}
impl<T> const BoundedRange<T> for core::ops::RangeInclusive<T>
{
    fn steps(&self) -> (usize, Option<usize>)
    where
        T: ~const Step
    {
        let (n, o) = Step::steps_between(self.start(), self.end());
        (n.saturating_add(1), o.and_then(usize::checked_add.rcurry(1)))
    }
    fn start(&self) -> &T
    {
        self.start()
    }
    fn end(&self) -> &T
    {
        self.end()
    }
    fn last(&self) -> T
    where
        T: ~const Step + Copy
    {
        Step::backward(*self.end(), 1)
    }
}

#[cfg(test)]
mod test
{
    use crate::*;

    #[test]
    fn test()
    {
        let r = 0..4;
        let r = r.into_bulk()
            .map(|n| n + 1)
            .collect::<Vec<_>, _>();
        
        assert_eq!(r, [1, 2, 3, 4]);

        let r = 0u16..=4;
        let r = r.into_bulk()
            .map(|n| n + 1)
            .collect::<Vec<_>, _>();
        
        assert_eq!(r, [1, 2, 3, 4, 5]);
    }
}