/// <summary>
/// 执行解析。
/// </summary>
private void AnalysisExpres()
{
while (true)
{
if (_theQueue.Count > 0)
{
var bindWithStorey = _theQueue.Dequeue();
foreach (var memBind in bindWithStorey.TheExpression.Bindings)
{
//只取成员赋值表达式。忽略其余。
if (memBind is MemberAssignment)
{
var memAss = memBind as MemberAssignment;
var thisStorey = bindWithStorey.Storey + "." + memAss.Member.Name;
//如果成员赋值表达式的子表达式是一个成员创建表达式。则记录其层次，并按层次解析。
//如果不是则可能是常量值、变量值、各种运算符表达式或调用方法的返回值，则直接计算其结果。
if (memAss.Expression.NodeType == ExpressionType.MemberInit)
{
var membInitExp = memAss.Expression as MemberInitExpression;
var aStorey = new MemberBindingWithStorey()
{
Storey = thisStorey,
TheExpression = membInitExp
};
_theQueue.Enqueue(aStorey);
}
else
{
var thisMebbVal = new MemberInform();
thisStorey = thisStorey.Trim('.');
thisMebbVal.MemberRoute = thisStorey;
thisMebbVal.ValueType = memAss.Expression.Type;
var value = TranslateToDirectValue(memAss);
thisMebbVal.Value = value;
_propRoutList.Add(thisMebbVal);
}
}
}
}
else
{
break;
}
}
}
/// <summary>
/// 开始解析。
/// </summary>
/// <param name="memInitExpr">要解析的表达示。</param>
/// <returns>成员信息列表。</returns>
public IEnumerable <MemberInform> Analysiser(MemberInitExpression memInitExpr)
{
var bindWithStorey = new MemberBindingWithStorey()
{
Storey = "",
TheExpression = memInitExpr
};
_theQueue.Enqueue(bindWithStorey);
AnalysisExpres();
return(_propRoutList);
}
