Function move_values

parquet/src/arrow/array_reader/fixed_len_byte_array.rs:274–294

(
    buffer: &mut Vec<u8>,
    byte_length: usize,
    values_range: Range<usize>,
    valid_mask: &[u8],
    mut op: F,
)

#[inline]
fn move_values<F>(
    buffer: &mut Vec<u8>,
    byte_length: usize,
    values_range: Range<usize>,
    valid_mask: &[u8],
    mut op: F,
) where
    F: FnMut(&mut Vec<u8>, usize, usize, usize),
{
    for (value_pos, level_pos) in values_range.rev().zip(iter_set_bits_rev(valid_mask)) {
        debug_assert!(level_pos >= value_pos);
        if level_pos <= value_pos {
            break;
        }

        let level_pos_bytes = level_pos * byte_length;
        let value_pos_bytes = value_pos * byte_length;

        op(buffer, level_pos_bytes, value_pos_bytes, byte_length)
    }
}

impl ValuesBuffer for FixedLenByteArrayBuffer {
    fn with_capacity(capacity: usize) -> Self {