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Suppress warning CS1998: This async method lacks 'await'

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遇见更好的自我
遇见更好的自我 2020-11-28 04:21

I\'ve got an interface with some async functions. Some of the classes that implements the interface does not have anything to await, and some might just throw. It\'s a b

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  • 佛祖请我去吃肉
    佛祖请我去吃肉 (楼主)
    2020-11-28 05:06

    I know this is an old thread, and perhaps this won't have the right effect for all usages, but the following is as close as I can get to being able to simply throw a NotImplementedException when I haven't yet implemented a method, without altering the method signature. If it's problematic I'd be happy to know about it, but it barely matters to me: I only use this while in development anyway, so how it performs isn't all that important. Still, I'd be happy to hear about why it's a bad idea, if it is.

    public async Task test()
{
    throw await new AwaitableNotImplementedException();
}



    Here's the type I added to make that possible.
    


    public class AwaitableNotImplementedException : NotImplementedException
{
    public AwaitableNotImplementedException() { }

    public AwaitableNotImplementedException(string message) : base(message) { }

    // This method makes the constructor awaitable.
    public TaskAwaiter> GetAwaiter()
    {
        throw this;
    }
}

    
    
    
             
    
                                                        
    
            
            
    
              
                
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