private async Task <double> Visit(BinaryExpression expression)
{
var left = (dynamic)expression.Left;
var right = (dynamic)expression.Right;
return(await _sender.GetRespAsync(await Visit(left), await Visit(right), GetOperator(expression)));
}
protected override Expression VisitBinary(BinaryExpression node)
{
Console.WriteLine("Calculating:" + node.ToString());
Expression left = node.Left;
Expression right = node.Right;
Task <Expression> c1;
Task <Expression> c2;
c1 = Calculate(left);
c2 = Calculate(right);
var t = Task.WhenAll(c1, c2);
t.Wait();
string op;
switch (node.NodeType)
{
case ExpressionType.Add:
op = "+";
break;
case ExpressionType.Subtract:
op = "-";
break;
case ExpressionType.Multiply:
op = "*";
break;
case ExpressionType.Divide:
op = "/";
break;
default: throw new ArgumentException();
}
var taskAnsw = _sender.GetRespAsync(c1.Result.ToString(), c2.Result.ToString(), op);
taskAnsw.Wait();
var answer = Expression.Constant(taskAnsw.Result);
Console.WriteLine("Result = " + answer.ToString());
return(answer);
}