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vortex_array/arrays/variant/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::Variant;
12use crate::arrays::VariantArray;
13use crate::arrays::slice::SliceReduce;
14use crate::arrays::variant::VariantArrayExt;
15
16impl SliceReduce for Variant {
17    fn slice(array: ArrayView<'_, Variant>, range: Range<usize>) -> VortexResult<Option<ArrayRef>> {
18        let core_storage = array.core_storage().slice(range.clone())?;
19        let shredded = array
20            .shredded()
21            .map(|shredded| shredded.slice(range.clone()))
22            .transpose()?;
23
24        Ok(Some(
25            VariantArray::try_new(core_storage, shredded)?.into_array(),
26        ))
27    }
28}