生成自定义编译时警告C＃ [英] Generating a custom compile time warning C#

问题描述

我使用VS2008，想创建一个编译时警告/基于自定义属性上的属性错误（如果可能）。

I'm using VS2008 and would like to create a compile time warning / error based on custom attributes on a property (if it is possible).

有两种情况利息我现在：

There are two cases which interest me currently:

  [MyAttribute (typeof(MyClass)]

在哪里MyClass的必须实现的接口。目前我在属性的构造断言这一点，但是这并不能很容易地追查，由于堆栈跟踪的性质：

Where MyClass has to implement an interface. Currently I assert this in the constructor of the attribute, however this doesn't make it easy to track down, due to the nature of the stack trace:

 public MyAttribute (Type MyClassType)
    {
         System.Diagnostics.Debug.Assert(typeof(MyInterface).IsAssignableFrom(MyClassType),
                                         "Editor must implement interface: " + typeof(MyInterface).Name);

    }

这让我感兴趣的第二种情况是，我有一个属性定义的类型，如果该类型实现一个接口，那么如果另一个属性是不是present应显示警告。

The second case which interests me is where I have a type defined in an attribute, if that type implements an interface, then a warning should be displayed if another attribute isn't present.

即。如果（MyClass.Implements（SomeInterface）及＆放大器;！存在（SomeAttibute））{生成警告}

I.E. if (MyClass.Implements(SomeInterface) && !Exists(SomeAttibute)) { Generate Warning }

[MyAttribute(typeof(MyClass)] 
// Comment next line to generate warning
[Foo ("Bar")]

谢谢！

推荐答案

可以做到这一点与 PostSharp 。

我已经做过一次，并解释如何做到这一点href=\"http://fgheysels.blogspot.com/2008/08/locking-system-with-aspect-oriented.html\">

I've once done it, and explained how to do it here

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