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vortex_array/arrays/list/compute/
slice.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use std::ops::Range;
5
6use vortex_error::VortexResult;
7
8use crate::ArrayRef;
9use crate::IntoArray;
10use crate::arrays::ListArray;
11use crate::arrays::ListVTable;
12use crate::arrays::SliceReduce;
13use crate::vtable::ValidityHelper;
14
15impl SliceReduce for ListVTable {
16    fn slice(array: &Self::Array, range: Range<usize>) -> VortexResult<Option<ArrayRef>> {
17        Ok(Some(
18            ListArray::new(
19                array.elements().clone(),
20                array.offsets().slice(range.start..range.end + 1)?,
21                array.validity().slice(range)?,
22            )
23            .into_array(),
24        ))
25    }
26}