use vortex_error::VortexResult;
use crate::ArrayRef;
use crate::IntoArray;
use crate::arrays::ConstantArray;
use crate::arrays::ConstantVTable;
use crate::arrays::FilterArray;
use crate::arrays::FilterVTable;
use crate::arrays::dict::TakeReduceAdaptor;
use crate::arrays::filter::FilterReduceAdaptor;
use crate::arrays::slice::SliceReduceAdaptor;
use crate::optimizer::rules::ArrayParentReduceRule;
use crate::optimizer::rules::ParentRuleSet;
use crate::scalar_fn::fns::between::BetweenReduceAdaptor;
use crate::scalar_fn::fns::cast::CastReduceAdaptor;
use crate::scalar_fn::fns::fill_null::FillNullReduceAdaptor;
use crate::scalar_fn::fns::not::NotReduceAdaptor;
pub(crate) const PARENT_RULES: ParentRuleSet<ConstantVTable> = ParentRuleSet::new(&[
ParentRuleSet::lift(&BetweenReduceAdaptor(ConstantVTable)),
ParentRuleSet::lift(&CastReduceAdaptor(ConstantVTable)),
ParentRuleSet::lift(&ConstantFilterRule),
ParentRuleSet::lift(&FillNullReduceAdaptor(ConstantVTable)),
ParentRuleSet::lift(&FilterReduceAdaptor(ConstantVTable)),
ParentRuleSet::lift(&NotReduceAdaptor(ConstantVTable)),
ParentRuleSet::lift(&SliceReduceAdaptor(ConstantVTable)),
ParentRuleSet::lift(&TakeReduceAdaptor(ConstantVTable)),
]);
#[derive(Debug)]
struct ConstantFilterRule;
impl ArrayParentReduceRule<ConstantVTable> for ConstantFilterRule {
type Parent = FilterVTable;
fn reduce_parent(
&self,
child: &ConstantArray,
parent: &FilterArray,
_child_idx: usize,
) -> VortexResult<Option<ArrayRef>> {
Ok(Some(
ConstantArray::new(child.scalar.clone(), parent.len()).into_array(),
))
}
}