public override void Optimize()
{
base.Optimize();
// 遍历所有子项，如果有OpAdd的，把这个子项的所有子项提到当前
var add_items = _operators.Where(p => p.Item1 is OpAdd);
if (add_items.Any())
{
var childs = add_items.Select(p => ((OpAdd)p.Item1)._operators).Aggregate((a, b) => a.Concat(b));
if (childs.Any())
{
_operators = _operators.Where(p => !(p.Item1 is OpAdd)).Concat(childs);
// 重建变量位置信息
_operators = _operators.Select(
i => Tuple.Create(i.Item1, i.Item1.GetKeys().Select(k => Array.IndexOf(_keys, k)).ToArray())
);
}
}
// 所有的Const的数合并成一个
double v = DoCalc(_operators.Where(p => p.Item1 is OpConst).Select(p => p.Item1.Calc(null)).ToArray());
_operators = _operators.Where(p => !(p.Item1 is OpConst));
if (v != 0)
{
IOperator op = new OpConst(v);
var tmp = new List <Tuple <IOperator, int[]> >()
{
Tuple.Create(op, new int[0])
};
tmp.AddRange(_operators);
_operators = tmp;
}
}
public override void Optimize()
{
if (_op.GetKeys().Length == 0)
{
_op = new OpConst(_op.Calc(null));
}
else
{
_op.Optimize();
}
}
public virtual void Optimize()
{
// 如果子数据不需要key且不是OpConst，直接替换成OpConst
_operators = _operators.Select(p =>
{
if (p.Item2.Length == 0 && !(p.Item1 is OpConst))
{
IOperator op = new OpConst(p.Item1.Calc(null));
return(Tuple.Create(op, new int[0]));
}
else
{
p.Item1.Optimize();
return(p);
}
});
}