arrow_data/transform/
fixed_size_list.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use crate::ArrayData;
19use arrow_schema::{ArrowError, DataType};
20
21use super::{_MutableArrayData, Extend};
22
23pub(super) fn build_extend(array: &ArrayData) -> Extend<'_> {
24    let size = match array.data_type() {
25        DataType::FixedSizeList(_, i) => *i as usize,
26        _ => unreachable!(),
27    };
28
29    Box::new(
30        move |mutable: &mut _MutableArrayData, index: usize, start: usize, len: usize| {
31            for child in mutable.child_data.iter_mut() {
32                child.try_extend(index, start * size, (start + len) * size)?;
33            }
34            Ok(())
35        },
36    )
37}
38
39pub(super) fn extend_nulls(mutable: &mut _MutableArrayData, len: usize) -> Result<(), ArrowError> {
40    let size = match mutable.data_type {
41        DataType::FixedSizeList(_, i) => i as usize,
42        _ => unreachable!(),
43    };
44
45    for child in mutable.child_data.iter_mut() {
46        child.try_extend_nulls(len * size)?;
47    }
48    Ok(())
49}
arrow_data/transform/fixed_size_list.rs

arrow_data/transform/
fixed_size_list.rs
