Function append_view_from_buffer

datafusion/functions/src/unicode/substr.rs:333–343

(
    views_buf: &mut Vec<u128>,
    substr: &str,
    byte_offset: usize,
)

#[inline]
fn append_view_from_buffer(
    views_buf: &mut Vec<u128>,
    substr: &str,
    byte_offset: usize,
) -> bool {
    let byte_offset =
        u32::try_from(byte_offset).expect("validated string buffer offset fits in i32");
    let view = make_view(substr.as_bytes(), 0, byte_offset);
    views_buf.push(view);
    substr.len() > 12
}

#[expect(clippy::needless_range_loop)]
fn generic_string_substr<T: OffsetSizeTrait>(