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vortex_array/arrays/primitive/compute/
slice.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use std::ops::Range;
5
6use vortex_dtype::NativePType;
7use vortex_dtype::match_each_native_ptype;
8use vortex_error::VortexResult;
9
10use crate::ArrayRef;
11use crate::IntoArray;
12use crate::arrays::PrimitiveArray;
13use crate::arrays::PrimitiveVTable;
14use crate::arrays::SliceReduce;
15use crate::vtable::ValidityHelper;
16
17impl SliceReduce for PrimitiveVTable {
18    fn slice(array: &Self::Array, range: Range<usize>) -> VortexResult<Option<ArrayRef>> {
19        let result = match_each_native_ptype!(array.ptype(), |T| {
20            PrimitiveArray::from_buffer_handle(
21                array.buffer_handle().slice_typed::<T>(range.clone()),
22                T::PTYPE,
23                array.validity().slice(range)?,
24            )
25            .into_array()
26        });
27        Ok(Some(result))
28    }
29}