vortex_sparse/
ops.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use vortex_array::ArrayView;
5use vortex_array::ExecutionCtx;
6use vortex_array::scalar::Scalar;
7use vortex_array::vtable::OperationsVTable;
8use vortex_error::VortexResult;
9
10use crate::Sparse;
11use crate::SparseExt as _;
12
13impl OperationsVTable<Sparse> for Sparse {
14    fn scalar_at(
15        array: ArrayView<'_, Sparse>,
16        index: usize,
17        _ctx: &mut ExecutionCtx,
18    ) -> VortexResult<Scalar> {
19        Ok(array
20            .patches()
21            .get_patched(index)?
22            .unwrap_or_else(|| array.fill_scalar().clone()))
23    }
24}
25
26#[cfg(test)]
27mod tests {
28    use std::sync::LazyLock;
29
30    use vortex_array::IntoArray;
31    use vortex_array::VortexSessionExecute;
32    use vortex_array::arrays::PrimitiveArray;
33    use vortex_array::assert_arrays_eq;
34    use vortex_buffer::buffer;
35    use vortex_session::VortexSession;
36
37    use crate::Sparse;
38
39    static SESSION: LazyLock<VortexSession> = LazyLock::new(|| {
40        let session = vortex_array::array_session();
41        crate::initialize(&session);
42        session
43    });
44
45    #[test]
46    fn slice_partially_invalid() {
47        let mut ctx = SESSION.create_execution_ctx();
48        let values = buffer![0u64].into_array();
49        let indices = buffer![0u8].into_array();
50
51        let sparse = Sparse::try_new(indices, values, 1000, 999u64.into()).unwrap();
52        let sliced = sparse.slice(0..1000).unwrap();
53        let mut expected = vec![999u64; 1000];
54        expected[0] = 0;
55
56        let values = sliced.execute::<PrimitiveArray>(&mut ctx).unwrap();
57        assert_arrays_eq!(values, PrimitiveArray::from_iter(expected), &mut ctx);
58    }
59}
vortex_sparse/ops.rs

vortex_sparse/
ops.rs
