C＃中非泛型接口通用成员实现的类型约束(Type constraints on implementations of generic members of non-generic interfaces in C#)

 假设我有这样的界面： 
 
interface IAwesome
{
    T DoSomething<T>();
}
 
 有没有什么办法来实现类型约束的DoSomething方法？ 显然，这不起作用： 
 
class IncrediblyAwesome<T> : IAwesome where T : PonyFactoryFactoryFacade
{
    public T DoSomething()
    {
        throw new NotImplementedException();
    }
}
 
 这显然不会工作，因为这个DoSomething（）不会完全满足IAwesome的合同 - 它只适用于类型参数T的所有可能值的子集。有没有什么办法可以使这个工作不够“铸造黑魔法“（如果答案是否定的，我将如何作为最后的手段）？ 
 
 老实说，我不认为这是可能的，但我想知道你们的想法。 
 
 编辑 ：有问题的接口是System.Linq.IQueryProvider，所以我不能修改接口本身。 

Let's say I have an interface like that:
 
interface IAwesome
{
    T DoSomething<T>();
}
 
Is there any way to implement the DoSomething method with type constraint? Obviously, this won't work:
 
class IncrediblyAwesome<T> : IAwesome where T : PonyFactoryFactoryFacade
{
    public T DoSomething()
    {
        throw new NotImplementedException();
    }
}
 
This obviously won't work because this DoSomething() won't fully satisfy the contract of IAwesome - it only work for a subset of all possible values of the type parameter T. Is there any way to get this work short of some "casting black magic" (which is what I'm going to do as last resort if the answer is no)?
 
Honestly, I don't think it's possible but I wonder what you guys think.
 
EDIT: The interface in question is System.Linq.IQueryProvider so I can't modify the interface itself.

原文：https://stackoverflow.com/questions/2259114