graphrecords-query 0.5.0

High-performance graph-based data records
Documentation 
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use crate::{
    EvaluateOperand, Explain, Operand, QueryResult,
    execution::EvaluationCache,
    optimizer::{Estimated, OptimizePlan, PlanNode},
};
use graphrecords_core::GraphRecord;

pub trait EvaluateContext {
    type Operand: Operand;

    fn evaluate<'a>(
        &'a self,
        graphrecord: &'a GraphRecord,
        cache: &'a EvaluationCache<'a>,
    ) -> QueryResult<<Self::Operand as EvaluateOperand>::ReturnValue<'a>>;
}

pub trait OperandContext<O: Operand>:
    PlanNode
    + OptimizePlan<Output = O>
    + Explain
    + EvaluateContext<Operand = O>
    + Estimated
    + Send
    + Sync
{
}

impl<O, C> OperandContext<O> for C
where
    O: Operand,
    C: PlanNode
        + OptimizePlan<Output = O>
        + Explain
        + EvaluateContext<Operand = O>
        + Estimated
        + Send
        + Sync,
{
}