Method append_nulls

arrow-array/src/builder/generic_list_builder.rs:279–284

(&mut self, n: usize)

    /// Appends `n` `null`s into the builder.
    #[inline]
    pub fn append_nulls(&mut self, n: usize) {
        let next_offset = self.next_offset();
        self.offsets_builder
            .extend(std::iter::repeat_n(next_offset, n));
        self.null_buffer_builder.append_n_nulls(n);
    }

    /// Appends an optional value into this [`GenericListBuilder`]
    ///