vortex_array/arrays/primitive/vtable/
operations.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use std::ops::Range;
5
6use vortex_dtype::match_each_native_ptype;
7use vortex_scalar::Scalar;
8
9use crate::ArrayRef;
10use crate::IntoArray;
11use crate::arrays::PrimitiveArray;
12use crate::arrays::PrimitiveVTable;
13use crate::vtable::OperationsVTable;
14use crate::vtable::ValidityHelper;
15
16impl OperationsVTable<PrimitiveVTable> for PrimitiveVTable {
17    fn slice(array: &PrimitiveArray, range: Range<usize>) -> ArrayRef {
18        match_each_native_ptype!(array.ptype(), |T| {
19            PrimitiveArray::new(
20                array.buffer::<T>().slice(range.clone()),
21                array.validity().slice(range),
22            )
23            .into_array()
24        })
25    }
26
27    fn scalar_at(array: &PrimitiveArray, index: usize) -> Scalar {
28        match_each_native_ptype!(array.ptype(), |T| {
29            Scalar::primitive(array.as_slice::<T>()[index], array.dtype().nullability())
30        })
31    }
32}