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vortex_array/arrays/listview/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::ListViewArray;
11use crate::arrays::ListViewVTable;
12use crate::arrays::SliceReduce;
13
14impl SliceReduce for ListViewVTable {
15    fn slice(array: &Self::Array, range: Range<usize>) -> VortexResult<Option<ArrayRef>> {
16        Ok(Some(
17            unsafe {
18                ListViewArray::new_unchecked(
19                    array.elements().clone(),
20                    array.offsets().slice(range.clone())?,
21                    array.sizes().slice(range.clone())?,
22                    array.validity()?.slice(range)?,
23                )
24                .with_zero_copy_to_list(array.is_zero_copy_to_list())
25            }
26            .into_array(),
27        ))
28    }
29}