public override int Calculate()
{
switch (Op)
{
case Operator.Mul:
return(LeftNode.Calculate() * RightNode.Calculate());
case Operator.Div:
return(LeftNode.Calculate() / RightNode.Calculate());
case Operator.Mod:
return(LeftNode.Calculate() % RightNode.Calculate());
case Operator.Plus:
return(LeftNode.Calculate() + RightNode.Calculate());
case Operator.Minus:
return(LeftNode.Calculate() - RightNode.Calculate());
default:
throw new ArgumentOutOfRangeException();
}
}
public sealed override double Calculate() => LeftNode.Calculate() + RightNode.Calculate();
public sealed override int Calculate() => LeftNode.Calculate() - RightNode.Calculate();