is_between.rs

use std::ops::BitAnd;

use polars_core::prelude::*;

use crate::series::ClosedInterval;

pub fn is_between(
    s: &Series,
    lower: &Series,
    upper: &Series,
    closed: ClosedInterval,
) -> PolarsResult<BooleanChunked> {
    let left_cmp_op = match closed {
        ClosedInterval::None | ClosedInterval::Right => Series::gt,
        ClosedInterval::Both | ClosedInterval::Left => Series::gt_eq,
    };
    let right_cmp_op = match closed {
        ClosedInterval::None | ClosedInterval::Left => Series::lt,
        ClosedInterval::Both | ClosedInterval::Right => Series::lt_eq,
    };
    let left = left_cmp_op(s, lower)?;
    let right = right_cmp_op(s, upper)?;
    Ok(left.bitand(right))
}