vortex_array/arrays/bool/
ops.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::arrays::{BoolArray, BoolVTable};
9use crate::vtable::{OperationsVTable, ValidityHelper};
10use crate::{ArrayRef, IntoArray};
11
12impl OperationsVTable<BoolVTable> for BoolVTable {
13    fn slice(array: &BoolArray, range: Range<usize>) -> ArrayRef {
14        BoolArray::new(
15            array.boolean_buffer().slice(range.start, range.len()),
16            array.validity().slice(range),
17        )
18        .into_array()
19    }
20
21    fn scalar_at(array: &BoolArray, index: usize) -> Scalar {
22        Scalar::bool(
23            array.boolean_buffer().value(index),
24            array.dtype().nullability(),
25        )
26    }
27}
28
29#[cfg(test)]
30mod tests {
31    use super::*;
32    use crate::ToCanonical;
33
34    #[test]
35    fn test_slice_large() {
36        let arr = BoolArray::from_iter(std::iter::repeat_n(Some(true), 100));
37        let sliced_arr = arr.slice(8..16).to_bool().unwrap();
38        assert_eq!(sliced_arr.len(), 8);
39        assert_eq!(sliced_arr.boolean_buffer().len(), 8);
40        assert_eq!(sliced_arr.boolean_buffer().offset(), 0);
41    }
42
43    #[test]
44    fn test_slice() {
45        let arr = BoolArray::from_iter([Some(true), Some(true), None, Some(false), None]);
46        let sliced_arr = arr.slice(1..4).to_bool().unwrap();
47
48        assert_eq!(sliced_arr.len(), 3);
49
50        let s = sliced_arr.scalar_at(0);
51        assert_eq!(s.as_bool().value(), Some(true));
52
53        let s = sliced_arr.scalar_at(1);
54        assert!(!sliced_arr.is_valid(1));
55        assert!(s.is_null());
56
57        let s = sliced_arr.scalar_at(2);
58        assert_eq!(s.as_bool().value(), Some(false));
59    }
60}
vortex_array/arrays/bool/ops.rs

vortex_array/arrays/bool/
ops.rs
