Tell Resharper that a lambda argument is not null

Question

I have a method like this:

void Foo(object x, Action<object> f) {
    if (x != null)
        f (x);
}

And I would like to use it like this:

void Bar () {
    Foo ("baz", g => g.ToString());
    Foo (null, g => g.ToString());
}

But Resharper is complaining that the g in the lambdas might be null. Is it possibile to annotate the method to tell Resharper that g will never be null?

Answer 1

使用ReSharper，当您在可以改进的行上时，代码编辑器的左侧应该出现一个黄色灯泡，如果单击它，则会出现一个“检查：...”选项，单击它，然后点击Disable once with comment，评论如：

// ReSharper 禁用一次...

应出现在该行之前。您可以找到一种困难的方法来明确告诉“它不会为空”，或者只是让它忽略该问题。我希望它有帮助。

编辑：我想说我使用许可的 ReSharper 9，只是为了指定。