public override XTNumericToken Calculate(string formula, XTFormulaArgs args)
{
XTNumericToken baseToken = this.m_formulas[0].Calculate(args);
XTNumericToken indexToken = this.m_formulas[1].Calculate(args);
return(new XTDoubleToken(Math.Pow((double)baseToken, 1.0f / (double)indexToken)));
}
public override XTNumericToken Calculate(string formula, XTFormulaArgs args)
{
XTNumericToken lToken = this.m_formulas[0].Calculate(args);
XTNumericToken rToken = this.m_formulas[1].Calculate(args);
return(new Random().Next((int)lToken, (int)rToken));
}
public override XTNumericToken Calculate(string formula, XTFormulaArgs args)
{
XTNumericToken token;
if (args.TryGetValue(this.m_name, out token))
{
return(token);
}
throw new XTFormulaNoArgumentException(formula, this.m_name);
}
public override XTNumericToken Calculate(string formula, XTFormulaArgs args)
{
XTNumericToken lToken = this.m_formulas[0].Calculate(args);
XTNumericToken rToken = this.m_formulas[1].Calculate(args);
if (lToken > rToken)
{
return(rToken);
}
return(lToken);
}
public XTNumericToken Calculate(XTFormulaArgs args)
{
if (this.m_result != null)
{
return(this.m_result);
}
XTNumericToken token = this.m_root.Calculate(this.m_formula, args);
if (this.IsConst)
{
this.m_result = token;
}
return(token);
}
// ----------------------------------------------------------
// public
// ----------------------------------------------------------
public override XTNumericToken Calculate(string formula, XTFormulaArgs args)
{
XTNumericToken rValue = this.m_rToken.Calculate(formula, args);
if (this.m_lToken == null)
{ // 以 +、- 号开头的公式
return((this.m_opt == Operator.Sub) ? -rValue : rValue);
}
XTNumericToken lValue = this.m_lToken.Calculate(formula, args);
switch (this.m_opt)
{
case Operator.Or:
return(lValue | rValue);
case Operator.Xor:
return(lValue ^ rValue);
case Operator.And:
return(lValue & rValue);
case Operator.LMove:
return(lValue << (int)rValue);
case Operator.RMove:
return(lValue >> (int)rValue);
case Operator.Add:
return(lValue + rValue);
case Operator.Sub:
return(lValue - rValue);
case Operator.Mul:
return(lValue * rValue);
case Operator.Div:
return(lValue / rValue);
case Operator.Mod:
return(lValue % rValue);
case Operator.Pow:
return(Math.Pow((double)lValue, (double)rValue));
}
return(rValue); // 永远也不会走这里来
}
public abstract long Cut(); // 返回整数部分
public override XTNumericToken Calculate(string formula, XTFormulaArgs args)
{
return(this);
}
public override XTNumericToken Calculate(string formula, XTFormulaArgs args)
{
XTNumericToken token = this.m_formulas[0].Calculate(args);
return(new XTLongToken(token.Round()));
}
public abstract XTNumericToken Calculate(string formula, XTFormulaArgs args);
