vortex_array/arrays/listview/vtable/
array.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use std::hash::Hash;
5
6use vortex_dtype::DType;
7
8use crate::Precision;
9use crate::arrays::{ListViewArray, ListViewVTable};
10use crate::hash::{ArrayEq, ArrayHash};
11use crate::stats::StatsSetRef;
12use crate::vtable::ArrayVTable;
13
14impl ArrayVTable<ListViewVTable> for ListViewVTable {
15    fn len(array: &ListViewArray) -> usize {
16        debug_assert_eq!(array.offsets().len(), array.sizes().len());
17        array.offsets().len()
18    }
19
20    fn dtype(array: &ListViewArray) -> &DType {
21        &array.dtype
22    }
23
24    fn stats(array: &ListViewArray) -> StatsSetRef<'_> {
25        array.stats_set.to_ref(array.as_ref())
26    }
27
28    fn array_hash<H: std::hash::Hasher>(
29        array: &ListViewArray,
30        state: &mut H,
31        precision: Precision,
32    ) {
33        array.dtype.hash(state);
34        array.elements().array_hash(state, precision);
35        array.offsets().array_hash(state, precision);
36        array.sizes().array_hash(state, precision);
37        array.validity.array_hash(state, precision);
38    }
39
40    fn array_eq(array: &ListViewArray, other: &ListViewArray, precision: Precision) -> bool {
41        array.dtype == other.dtype
42            && array.elements().array_eq(other.elements(), precision)
43            && array.offsets().array_eq(other.offsets(), precision)
44            && array.sizes().array_eq(other.sizes(), precision)
45            && array.validity.array_eq(&other.validity, precision)
46    }
47}