public override void Visit(MultiplicationExpression me)
{
// todo
me.LHS.Accept(this);
sb.Append("*");
me.RHS.Accept(this);
}
static void Main(string[] args)
{
var exp = new MultiplicationExpression(new Value(1),
new AdditionExpression(new Value(2), new Value(3)));
var ev = new ExpressionPrinter();
exp.Accept(ev);
Console.WriteLine($"{ev.ToString()}");
}
public abstract void Visit(MultiplicationExpression me);