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vortex_array/arrays/listview/compute/
mask.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use vortex_error::VortexResult;
5
6use crate::ArrayRef;
7use crate::IntoArray;
8use crate::array::ArrayView;
9use crate::arrays::ListView;
10use crate::arrays::ListViewArray;
11use crate::arrays::listview::ListViewArrayExt;
12use crate::scalar_fn::fns::mask::MaskReduce;
13use crate::validity::Validity;
14
15impl MaskReduce for ListView {
16    fn mask(array: ArrayView<'_, ListView>, mask: &ArrayRef) -> VortexResult<Option<ArrayRef>> {
17        // SAFETY: masking the validity does not affect the invariants
18        Ok(Some(
19            unsafe {
20                ListViewArray::new_unchecked(
21                    array.elements().clone(),
22                    array.offsets().clone(),
23                    array.sizes().clone(),
24                    array.validity()?.and(Validity::Array(mask.clone()))?,
25                )
26                .with_zero_copy_to_list(array.is_zero_copy_to_list())
27            }
28            .into_array(),
29        ))
30    }
31}