TryFinally.cs

using System;
using System.Threading.Tasks;
using Waher.Script.Abstraction.Elements;
using Waher.Script.Model;
 
namespace Waher.Script.Operators.Conditional
{
    public class TryFinally : BinaryOperator
    {
        public TryFinally(ScriptNode Statement, ScriptNode FinallyStatement, int Start, int Length, Expression Expression)
            : base(Statement, FinallyStatement, Start, Length, Expression)
        {
        }
 
        public override IElement Evaluate(Variables Variables)
        {
            try
            {
                return this.left.Evaluate(Variables);
            }
            finally
            {
                this.right.Evaluate(Variables);
            }
        }
 
        public override async Task<IElement> EvaluateAsync(Variables Variables)
        {
            if (!this.isAsync)
                return this.Evaluate(Variables);
 
            try
            {
                return await this.left.EvaluateAsync(Variables);
            }
            finally
            {
                await this.right.EvaluateAsync(Variables);
            }
        }
    }
}