Function take_native

arrow-select/src/take.rs:428–452

(
    values: &[T],
    indices: &PrimitiveArray<I>,
)

#[inline(never)]
fn take_native<T: ArrowNativeType, I: ArrowPrimitiveType>(
    values: &[T],
    indices: &PrimitiveArray<I>,
) -> ScalarBuffer<T> {
    match indices.nulls().filter(|n| n.null_count() > 0) {
        Some(n) => indices
            .values()
            .iter()
            .enumerate()
            .map(|(idx, index)| match values.get(index.as_usize()) {
                Some(v) => *v,
                // SAFETY: idx<indices.len()
                None => match unsafe { n.inner().value_unchecked(idx) } {
                    false => T::default(),
                    true => panic!("Out-of-bounds index {index:?}"),
                },
            })
            .collect(),
        None => indices
            .values()
            .iter()
            .map(|index| values[index.as_usize()])
            .collect(),
    }
}

#[inline(never)]
fn take_bits<I: ArrowPrimitiveType>(