arrow_data/transform/
fixed_binary.rs1use super::{_MutableArrayData, Extend};
6use crate::ArrayData;
7use crate::data::get_fixed_size_binary_width;
8
9pub(super) fn build_extend(array: &ArrayData) -> Extend<'_> {
10 let size = get_fixed_size_binary_width(array.data_type());
11 let values = &array.buffers()[0].as_slice()[array.offset() * size..];
12 Box::new(
13 move |mutable: &mut _MutableArrayData, _, start: usize, len: usize| {
14 let buffer = &mut mutable.buffer1;
15 buffer.extend_from_slice(&values[start * size..(start + len) * size]);
16 Ok(())
17 },
18 )
19}
20
21pub(super) fn extend_nulls(
22 mutable: &mut _MutableArrayData,
23 len: usize,
24) -> Result<(), arrow_schema::ArrowError> {
25 let size = get_fixed_size_binary_width(&mutable.data_type);
26
27 let values_buffer = &mut mutable.buffer1;
28 values_buffer
29 .try_extend_zeros(len * size)
30 .map_err(|e| arrow_schema::ArrowError::MemoryError(e.to_string()))?;
31 Ok(())
32}