AjErl.Expressions.TupleExpression.Evaluate C# (CSharp) Method

        public object Evaluate(Context context, bool withvars = false)
        {
            IList<object> elements = new List<object>();

            foreach (var expr in this.expressions)
                elements.Add(expr.Evaluate(context, withvars));

            return new Tuple(elements);
        }

        public void RaiseIfTupleHasVariable()
        {
            Context context = new Context();
            var expr = new TupleExpression(new IExpression[] { new ConstantExpression(1), new VariableExpression(new Variable("X")), new AtomExpression(new Atom("y")) });

            try
            {
                expr.Evaluate(context);
                Assert.Fail();
            }
            catch (System.Exception ex)
            {
                Assert.AreEqual("variable 'X' is unbound", ex.Message);
            }
        }