vortex_array/arrays/masked/vtable/
operations.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use std::ops::Range;
5
6use vortex_scalar::Scalar;
7
8use crate::ArrayRef;
9use crate::IntoArray;
10use crate::arrays::MaskedVTable;
11use crate::arrays::masked::MaskedArray;
12use crate::stats::ArrayStats;
13use crate::vtable::OperationsVTable;
14
15impl OperationsVTable<MaskedVTable> for MaskedVTable {
16    fn slice(array: &MaskedArray, range: Range<usize>) -> ArrayRef {
17        let child = array.child.slice(range.clone());
18        let validity = array.validity.slice(range);
19
20        MaskedArray {
21            child,
22            validity,
23            dtype: array.dtype.clone(),
24            stats: ArrayStats::default(),
25        }
26        .into_array()
27    }
28
29    fn scalar_at(array: &MaskedArray, index: usize) -> Scalar {
30        // Invalid indices are handled by the entrypoint function.
31        array.child.scalar_at(index).into_nullable()
32    }
33}