问题描述
我正在用NDepend中的CQLinq计算标识符的平均长度，我想获取类，字段和方法的名称的长度.我浏览了CQlinq的以下页面: http://www.ndepend.com/docs/cqlinq-syntax ，我有类似的代码:
I am calculating average length of identifiers with CQLinq in NDepend, and I want to get the length of the names of classes, fields and methods. I walked through this page of CQlinq: http://www.ndepend.com/docs/cqlinq-syntax, and I have code like:
let id_m = Methods.Select(m => new { m.SimpleName, m.SimpleName.Length })
let id_f = Fields.Select(f => new { f.Name, f.Name.Length })
select id_m.Union(id_f)
它不起作用，一个错误提示:
It doesn't work, one error says:
另一个是:
但是，根据 MSDN ，IEnumerable接口定义了Union()和Concat()方法.
However, according to MSDN, IEnumerable Interface defines Union() and Concat() methods.
在我看来，我不能使用与Linq完全相同的方式使用CQLinq.无论如何，是否有一种方法可以从singe查询中的Types，Methods和Fields域中获取信息?
It seems to me that I cannot use CQLinq exactly the same way as Linq. Anyway, is there a way to get the information from Types, Methods and Fields domains within a singe query?
非常感谢.
推荐答案
暂时不可以，因为CQLinq查询只能匹配类型序列，方法序列或字段序列，因此您需要3个不同的代码查询.
Not for now, because a CQLinq query can only match a sequence of types, or a sequence of methods or a sequence of field, so you need 3 distinct code queries.
对于下一个版本的CQLinq，将进行很多改进，实际上您将能够编写如下内容:
For next version CQLinq, will be improved a lot and indeed you'll be able to write things like:
from codeElement in Application.TypesAndMembers
select new { codeElement, codeElement.Name.Length }
下一版本将在2016年底之前提供.
Next version will be available before the end of the year 2016.
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