vortex_array/arrays/constant/compute/
mask.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use vortex_dtype::Nullability;
5use vortex_error::VortexResult;
6use vortex_mask::Mask;
7
8use crate::arrays::{ConstantArray, ConstantVTable, MaskedArray};
9use crate::compute::{MaskKernel, MaskKernelAdapter};
10use crate::validity::Validity;
11use crate::{ArrayRef, IntoArray, register_kernel};
12
13impl MaskKernel for ConstantVTable {
14    fn mask(&self, array: &ConstantArray, mask: &Mask) -> VortexResult<ArrayRef> {
15        MaskedArray::try_new(
16            array.to_array(),
17            Validity::from_mask(!mask, Nullability::Nullable),
18        )
19        .map(|a| a.into_array())
20    }
21}
22
23register_kernel!(MaskKernelAdapter(ConstantVTable).lift());
24
25#[cfg(test)]
26mod test {
27    use crate::arrays::ConstantArray;
28    use crate::compute::conformance::mask::test_mask_conformance;
29
30    #[test]
31    fn test_mask_constant() {
32        let array = ConstantArray::new(std::f64::consts::PI, 15);
33        test_mask_conformance(array.as_ref());
34    }
35}