这是什么类型的.NET（反射） [英] What is this Type in .NET (Reflection)

问题描述

这是什么类型的.NET？我使用反射来获取所有的类的列表，这一次轮番上涨。

What is this Type in .NET? I am using reflection to get a list of all the classes and this one turns up.

这是什么？它从何而来？如何名字DisplayClass1选择？我搜索的来源，并没有看到任何东西。什么是＆LT;＆GT; 是什么意思？什么是ç__ 是什么意思？是有参考？

What is it? where does it come from? How is the name DisplayClass1 chosen? I search the sources and didnt see anything. What does the <> mean? what does the c__ mean? is there reference?

推荐答案

这几乎肯定是由编译器生成的类由于拉姆达EX pression或匿名方法。例如，考虑这个code：

It's almost certainly a class generated by the compiler due to a lambda expression or anonymous method. For example, consider this code:

using System;

class Test
{
    static void Main()
    {
        int x = 10;
        Func<int, int> foo = y => y + x;
        Console.WriteLine(foo(x));
    }
}

这是被编译成：

using System;

class Test
{
    static void Main()
    {
        ExtraClass extra = new ExtraClass();
        extra.x = 10;

        Func<int, int> foo = extra.DelegateMethod;
        Console.WriteLine(foo(x));
    }

    private class ExtraClass
    {
        public int x;

        public int DelegateMethod(int y)
        {
            return y + x;
        }
    }
}

...除了使用＆LT;＆GT; c_displayClass1 的名称，而不是 ExtraClass 。这是一个的难言的名称的，因为它不是有效的C＃ - 这意味着C＃编译器确切地知道它不会出现在自己的code和冲突，其选择

... except using <>c_displayClass1 as the name instead of ExtraClass. This is an unspeakable name in that it isn't valid C# - which means the C# compiler knows for sure that it won't appear in your own code and clash with its choice.

编译匿名函数的具体方式是实现特定的，当然 - 这是名称的选择了额外的类

The exact manner of compiling anonymous functions is implementation-specific, of course - as is the choice of name for the extra class.

编译器还产生额外的类迭代器块和（在C＃5）异步方法和代表。

The compiler also generates extra classes for iterator blocks and (in C# 5) async methods and delegates.

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