首页 \ 问答 \ 是否可以使用F#中的LINQ以及如何使用?(Is it possible to use LINQ from F# and how? [duplicate])

是否可以使用F#中的LINQ以及如何使用?(Is it possible to use LINQ from F# and how? [duplicate])

这个问题在这里已有答案:

为了访问某些SharePoint数据,我使用了Microsoft.SharePoint.Client库,该库公开了以下API。 C#( link )中有一些示例用法,其中包含以下代码段:

ClientContext context = new ClientContext("http://SiteUrl"); 
Web web = context.Web; 
context.Load(web.Lists, 
             lists => lists.Include(list => list.Title, // For each list, retrieve Title and Id. 
                                    list => list.Id)); 

Load方法的签名是( 链接

public void Load<T>(
    T clientObject,
    params Expression<Func<T, Object>>[] retrievals
)
where T : ClientObject

Fsharp编译器期望第二个参数类型

Linq.Expressions.Expression<Func<'a,obj>>

要么

Linq.Expressions.Expression<Func<'a,obj>> []    

我可以使用F#的Load方法吗?

这里有一个相关的答案但我不能将给定代码示例解决方案转换为上面的c#示例。 也许有人可以帮忙吗? 涉及的类型是list : ListCollectionlist : List


This question already has an answer here:

In order to access some SharePoint data I use the Microsoft.SharePoint.Client Library which exposes the following api. There are example usage in C# (link) from which is the following snippet:

ClientContext context = new ClientContext("http://SiteUrl"); 
Web web = context.Web; 
context.Load(web.Lists, 
             lists => lists.Include(list => list.Title, // For each list, retrieve Title and Id. 
                                    list => list.Id)); 

The Signature of the Load method is (link)

public void Load<T>(
    T clientObject,
    params Expression<Func<T, Object>>[] retrievals
)
where T : ClientObject

Fsharp Compiler expect the second paramater to be of type

Linq.Expressions.Expression<Func<'a,obj>>

or

Linq.Expressions.Expression<Func<'a,obj>> []    

Can I use the Load Method from F# and how ?

There is a related answer here but I cant translate the give code example solution to the above c# example. Maybe one can help? The types involved are list : ListCollection and list : List


原文:https://stackoverflow.com/questions/38198613
更新时间:2022-10-20 20:10

最满意答案

在c.py的顶层(即任何函数或类之外),您应该能够通过运行获得所需的信息

import traceback

然后检查traceback.extract_stack()的结果。 在运行顶级代码时,模块的导入程序(及其导入程序等递归地)都在callstack上。


In the top-level of c.py (i.e. outside of any function or class), you should be able to get the information you need by running

import traceback

and then examining the result of traceback.extract_stack(). At the time that top-level code is run, the importer of the module (and its importer, etc. recursively) are all on the callstack.

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