打印方法的完整签名从MethodInfo的 [英] Print full signature of a method from a MethodInfo

问题描述

有谁知道在.net BCL的任何现有的功能在运行时打印方法的完整签名（像什么你在VS ObjectBrowser看到的 - 包括参数名称）？使用可从MethodInfo的信息。

Does anyone know of any existing functionality in the .NET BCL to print the full signature of a method at runtime (like what you'd see in the VS ObjectBrowser - including parameter names) using information available from MethodInfo?

因此​​，例如，如果你查找的String.Compare（）的一个重载将打印为：

So for example, if you look up String.Compare() one of the overloads would print as:

public static int Compare(string strA, int indexA, string strB, int indexB, int length, bool ignoreCase, System.Globalization.CultureInfo culture)

请注意完整的签名与所有访问和范围预选赛presence以及参数，包括名称的完整列表。这就是我要找的。我可以写我自己的方法，但我宁愿使用现有的实现，如果可能的。

Note the presence of the complete signature with all access and scope qualifiers as well as a complete list of parameters including names. This is what I'm looking for. I could write my own method, but I would rather use an existing implementation if possible.

推荐答案

不幸的是，我不相信有一个内置的方法，将做到这一点。你最好是将受调查的MethodInfo类来创建自己的签名

Unfortunately I don't believe there is a built in method that would do that. Your best be would be to create your own signature by investigating the MethodInfo class

编辑：我只是做了这个

 MethodBase mi = MethodInfo.GetCurrentMethod();
 mi.ToString();

和你

无效的主要（System.String []）

Void Main(System.String[])

这可能不是你要找的内容，但它很接近。

This might not be what you're looking for, but it's close.

这个怎么样

 public static class MethodInfoExtension
        {
            public static string MethodSignature(this MethodInfo mi)
            {
                String[] param = mi.GetParameters()
                              .Select(p => String.Format("{0} {1}",p.ParameterType.Name,p.Name))
                              .ToArray();


            string signature = String.Format("{0} {1}({2})", mi.ReturnType.Name, mi.Name, String.Join(",", param));

            return signature;
        }
    }

    var methods = typeof(string).GetMethods().Where( x => x.Name.Equals("Compare"));

    foreach(MethodInfo item in methods)
    {
        Console.WriteLine(item.MethodSignature());
    }

这是结果

的Int32比较（字符串STRA，的Int32   索引A，字符串STRB，的Int32 indexB，的Int32   长度，StringComparison   comparisonType）

Int32 Compare(String strA,Int32 indexA,String strB,Int32 indexB,Int32 length,StringComparison comparisonType)

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