将ObsoleteAttribute添加到不受我控制的类型(或以其他方式列入灰名单)? [英] Adding ObsoleteAttribute to (or otherwise greylisting) Types not under my control?

问题描述

有没有办法将我无法控制的类型标记为过时?基本上，我想将ObsoleteAttribute添加到不想在.net项目中使用的类型(即SerializableAttribute)

Is there a way to somehow mark Types I do not control as Obsolete? Basically I would like to add ObsoleteAttribute to types I do not want to use in my .net Project (i.e., SerializableAttribute)

我相信我可以使用FxCop做类似的事情，但是理想情况下，我希望编译器已经为灰色列表"类型生成了警告?

I believe I can do something like that with FxCop, but ideally I would like to have the compiler already generate warnings for "greylisted" Types?

这应该在每个项目级别上，但是遗憾的是扩展属性"不存在，并且对于ObsoleteAttribute在运行时添加它们为时已晚...

This should be on a Per-Project level, but sadly "Extension Attributes" don't exist, and adding them at Runtime is too late for ObsoleteAttribute...

为了澄清，我不想阻止Types的使用(请记住，ObsoleteAttribute默认情况下只会生成警告，而不是错误！)，我只想生成警告当在所有情况下有99％使用它们时，使用它们是错误的(即SerializableAttribute).另外，我不仅指.net类型，还指某些第三方类型.这更是一个提醒.我想FxCop是我最好的选择.

Just to clarify, I do not want to block Types from using (keep in mind that ObsoleteAttribute by default only generates a warning, not an error!), I just want to generate warnings when they are used as in 99% of all cases it's wrong to use them (i.e. SerializableAttribute). Also, I'm not only referring to .net types but also to some third party types. It's more a reminder. I'll guess FxCop is my best bet then.

推荐答案

没有一种直接执行此操作的方法.FxCop将是您最好的选择.不过，您可以发挥创意，然后重新声明类型.警告:这是躲闪的躲闪！但这会起作用:

There isn't a way to do this directly; FxCop would be your best bet. You could get creative, though, and re-declare the type. Caveat: this is dodgy dodgy! But it'll work:

namespace System.Text {
    [Obsolete("Pah; who wants performance...", true)]
    public class StringBuilder { }
}

这太讨厌了！但是需要 extern别名才能解决.当然，它也可能带有一些基于字符串的反射( Activator.CreateInstance ).

This is so nasty! But takes an extern alias to get around. It might also monkey with some string-based reflection (Activator.CreateInstance) of course.

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