Method append_n

arrow-buffer/src/builder/boolean.rs:191–212

(&mut self, additional: usize, v: bool)

    /// Appends n `additional` bits of value `v` into the buffer
    #[inline]
    pub fn append_n(&mut self, additional: usize, v: bool) {
        match v {
            true => {
                let new_len = self.len + additional;
                let new_len_bytes = bit_util::ceil(new_len, 8);
                let cur_remainder = self.len % 8;
                let new_remainder = new_len % 8;

                if cur_remainder != 0 {
                    // Pad last byte with 1s
                    *self.buffer.as_slice_mut().last_mut().unwrap() |= !((1 << cur_remainder) - 1)
                }
                self.buffer.resize(new_len_bytes, 0xFF);
                if new_remainder != 0 {
                    // Clear remaining bits
                    *self.buffer.as_slice_mut().last_mut().unwrap() &= (1 << new_remainder) - 1
                }
                self.len = new_len;
            }
            false => self.advance(additional),
        }
    }

    /// Appends a slice of booleans into the buffer
    #[inline]