LeafIterativeEvaluator.cs

using System.Threading.Tasks;
using Waher.Script.Abstraction.Elements;
 
namespace Waher.Script.Model
{
    public abstract class LeafIterativeEvaluator : IIterativeEvaluator
    {
        private readonly ScriptLeafNode node;
 
        public LeafIterativeEvaluator(ScriptLeafNode Node)
        {
            this.node = Node;
        }
 
        public ScriptLeafNode Node => this.node;
 
        public abstract void RestartEvaluator();
 
        public abstract IElement GetAggregatedResult();
 
        public virtual bool UsesElement => true;
 
        public abstract void AggregateElement(IElement Element);
 
        public virtual bool IsAsynchronous => false;
 
        public abstract IElement Evaluate(Variables Variables);
 
        public virtual Task<IElement> EvaluateAsync(Variables Variables)
        {
            return Task.FromResult(this.Evaluate(Variables));
        }
    }
}