C#猴子修补-有可能吗? [英] C# monkey patching - is it possible?

问题描述

是否可以编写一个C#程序集，该程序集在加载时会将方法从另一个程序集注入到类中?如果是，是否可以从使用ILR的语言(如IronPython)中使用注入的方法?

Is it possible to write a C# assembly which when loaded will inject a method into a class from another assembly? If yes, will the injected method be available from languages using DLR, like IronPython?

namespace IronPython.Runtime
{
    public class Bytes : IList<byte>, ICodeFormattable, IExpressionSerializable
    {
        internal byte[] _bytes;

        //I WANT TO INJECT THIS METHOD
        public byte[] getbytes()
        {
            return _bytes;
        }
    }
}

我需要该方法，并且如果可能的话，我希望避免重新编译IronPython.

I need that method, and I would like to avoid recompiling IronPython if possible.

推荐答案

这可以通过诸如 TypeMock ，该钩子连接到框架概要分析API.

This can be done with frameworks such as TypeMock, which hook into the framework profiling APIs.

但是，这种注入通常仅用于促进单元测试，而不是在生产代码中使用，并且会带来性能上的损失.我的观点是，如果您必须在单元测试之外做一些如此剧烈的事情，那么您可能做错了什么.

However this kind of injection is usually only used to facilitate unit testing rather than within production code and comes with a performance hit. My opinion is that if you are having to do something as drastic as this outside of unit testing, then do you are probably doing something wrong.

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