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vortex_array/arrays/varbin/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::array::ArrayView;
11use crate::arrays::VarBin;
12use crate::arrays::VarBinArray;
13use crate::arrays::slice::SliceReduce;
14use crate::arrays::varbin::VarBinArrayExt;
15
16impl SliceReduce for VarBin {
17    fn slice(array: ArrayView<'_, Self>, range: Range<usize>) -> VortexResult<Option<ArrayRef>> {
18        VarBin::_slice(array, range).map(Some)
19    }
20}
21
22impl VarBin {
23    pub fn _slice(array: ArrayView<'_, VarBin>, range: Range<usize>) -> VortexResult<ArrayRef> {
24        Ok(unsafe {
25            VarBinArray::new_unchecked_from_handle(
26                array.offsets().slice(range.start..range.end + 1)?,
27                array.bytes_handle().clone(),
28                array.dtype().clone(),
29                array.validity()?.slice(range)?,
30            )
31            .into_array()
32        })
33    }
34}