PropertyInfo.DeclaringType 真的可以为空吗? [英] Can PropertyInfo.DeclaringType really ever be null?

问题描述

我正在使用 ReSharper(旧版本)，它曾经在我使用 PropertyInfo.DeclaringType 时警告我它可以是 null.

I'm using ReSharper (older version), which used to warn me when I use PropertyInfo.DeclaringType that it can be null.

乍一看，这对我来说毫无意义.是真的吗，还是 ReSharper 有点笨，没有注意到它是一个 PropertyInfo，而不是一个通用的 MemberInfo?

It doesn't make sense to me at first and second glances. Is it really true, or is ReSharper a bit dumb and doesn't notice that it's a PropertyInfo, not a general MemberInfo?

推荐答案

PropertyInfo.DeclaringType 属性继承自 MemberInfo.DeclaringType 和 文档:

The PropertyInfo.DeclaringType property is inherited from MemberInfo.DeclaringType and from documentation:

如果 MemberInfo 对象是一个全局成员(也就是说，如果它是从 Module.GetMethods 方法获取，该方法返回全局模块上的方法)，返回的 DeclaringType 将为 null.

If the MemberInfo object is a global member (that is, if it was obtained from the Module.GetMethods method, which returns global methods on a module), the returned DeclaringType will be null.

所以，在这种情况下，警告似乎没问题.

So, warning seems fine in that case.

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