vortex-fastlanes 0.70.0

Vortex fastlanes arrays
Documentation 
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// SPDX-License-Identifier: Apache-2.0
// SPDX-FileCopyrightText: Copyright the Vortex contributors

use vortex_array::ArrayView;
use vortex_array::LEGACY_SESSION;
use vortex_array::VortexSessionExecute;
use vortex_array::validity::Validity;
use vortex_array::vtable::ValidityVTable;
use vortex_error::VortexResult;

use crate::Delta;
use crate::bit_transpose::untranspose_validity;
use crate::delta::array::DeltaArrayExt;

impl ValidityVTable<Delta> for Delta {
    fn validity(array: ArrayView<'_, Delta>) -> VortexResult<Validity> {
        let start = array.offset();
        let end = start + array.len();

        let validity = untranspose_validity(
            &array.deltas().validity()?,
            &mut LEGACY_SESSION.create_execution_ctx(),
        )?;
        validity.slice(start..end)
    }
}