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);
}
