/// <summary>
/// 最多提供16个参数，超出16个，调用些方法获取
/// </summary>
/// <param name="i"></param>
/// <returns></returns>
protected object GetPara(int i)
{
if (RightVal != null)
{
if (paras == null)
{
if (RightSigelVal is object[])
{
paras = (object[])RightSigelVal;
}
else if (RightVal != null)
{
paras = new object[] { RightVal };
}
else
{
return(null);
}
}
if (i >= paras.Length)
{
return(null);
}
CalResult cr = paras[i] as CalResult;
return(cr.Results ?? cr.Result);
}
return(null);
}
/// <summary>
/// 重写集合操作
/// </summary>
/// <returns></returns>
protected sealed override CalResult CollectOperate()
{
CalResult result = new CalResult();
result.Results = new object[CLLen()];
result.ResultType = typeof(bool);
for (int i = 0; i < result.Results.Length; i++)
{
result.Results[i] = DoSingleOperate(CLOperData(i), CROperData(i));
}
return(result);
}
private CalResult CallResult(BinTree <IExpressPart> calBinTree)
{
if (calBinTree.LeftTree == null && calBinTree.RightTree == null)
{
if (calBinTree.TreeNode == null)
{
return(new CalResult
{
Result = ""
});
}
if (calBinTree.TreeNode is CalExpress)
{
CalExpress ce = calBinTree.TreeNode as CalExpress;
return(new CalResult
{
Result = ce.Value,
//ResultType = Comm.GetType(ce.Express)
});
}
}
if (calBinTree.TreeNode is IIteratorCollectionFun && this.CalCurrent.CurrentIndex != -1)
{
var indx = this.CalCurrent.CurrentIndex;
(calBinTree.TreeNode as CalSign).OnBeginOperator += () =>
{
this.CalCurrent.CurrentIndex = indx;
};
this.CalCurrent.CurrentIndex = -1;
}
if (!(calBinTree.TreeNode is CalSign))
{
throw new ExpressErrorException(string.Format("未能计算的表达式：{0}。", calBinTree.TreeNode));
}
var calSign = (calBinTree.TreeNode as CalSign);
//var time1 = DateTime.Now;
CalResult leftResult = null;
CalResult rightResult = null;
if (calBinTree.LeftTree != null)
{
//如果左边是赋值的则不调取值方法
if (calBinTree.TreeNode is SetValueSign)
{
((VarSign)calBinTree.LeftTree.TreeNode).IsSetValue = true;
}
leftResult = CallResult(calBinTree.LeftTree);
}
if (calBinTree.RightTree != null)
{
if (calBinTree.TreeNode is ConditionSign)
{
if (leftResult.Results != null)
{
throw new Exception("条件表达式左值太多");
}
else
{
if (!(leftResult.Result is bool))
{
throw new ExpressErrorException("if then的条件表达式条件必须为bool值！");
}
if (leftResult.Result.ToBool())
{
if (calBinTree.RightTree.TreeNode is ElseSign)
{
rightResult = CallResult(calBinTree.RightTree.LeftTree);
}
else
{
rightResult = CallResult(calBinTree.RightTree);
}
}
else
{
if (calBinTree.RightTree.TreeNode is ElseSign)
{
rightResult = CallResult(calBinTree.RightTree.RightTree);
}
else
{
rightResult = new CalResult
{
Result = null,
ResultType = typeof(bool)
};
}
}
}
}
else
{
rightResult = CallResult(calBinTree.RightTree);
}
}
CalSign cs = calBinTree.TreeNode as CalSign;
cs.LeftVal = leftResult;
cs.RightVal = rightResult;
var result = cs.Operate();
//calSign.ExeTicks += DateTime.Now.Subtract(time1).TotalMilliseconds;
return(result);
}
/// <summary>
/// 计算表达式的值
/// </summary>
/// <param name="express"></param>
/// <returns></returns>
private CalResult CallResult1(BinTree <IExpressPart> expressBinTree)
{
CalResult result = null;
bool flag1 = false, flag2 = false;
foreach (var node in expressBinTree.BackForeach())
{
//if (node is CustomFun) //也可能是变量
if (node is ICollectionResultFun)
{
flag1 = true;
}
else if (node is VarSign)
{
if (!CalCurrent.VarDataPool.ContainsKey((node as VarSign).SignName))
{
continue;
}
var varvar = CalCurrent.VarDataPool[(node as VarSign).SignName];
if (varvar.Results != null)
{
flag1 = true;
}
}
else if (node is ConditionSign)
{
flag2 = true;
}
if (flag1 && flag2)
{
break;
}
}
if (flag1 && flag2)
{
if (CalCurrent.CurrentBound <= 0)
{
throw new Exception("未知的数组边界");
}
result = new CalResult();
//需要处理
result.Results = new object[CalCurrent.CurrentBound];
for (int i = CalCurrent.CurrentBound - 1; i >= 0; i--)
{
this.CalCurrent.CurrentIndex = i;
if (expressBinTree.TreeNode is SetValueSign)
{
var partResult = CallResult(expressBinTree.RightTree);
result.Results[i] = partResult.Result;
result.ResultType = partResult.ResultType;
}
else
{
CallResult(expressBinTree);
}
}
if (expressBinTree.TreeNode is SetValueSign)
{
var key = (expressBinTree.LeftTree.TreeNode as VarSign).VarName;
this.CalCurrent.VarDataPool.Add(key, result);
}
this.CalCurrent.CurrentIndex = -1;
}
else
{
result = CallResult(expressBinTree);
}
return(result);
}
