Why doesn't C# infer my generic types?

Question

I\'m having lots of Funcy fun (fun intended) with generic methods. In most cases C# type inference is smart enough to find out what generic arguments it must use on my gener

Answer 1

The why has been well answered but there is an alternative solution. I face the same issues regularly however dynamic or any solution using reflection or allocating data is out of question in my case (joy of video games...)

So instead I pass the return as an out parameters which is then correctly inferred.

interface IQueryProcessor
{
     void Process(TQuery query, out TResult result)
         where TQuery : IQuery;
}

class Test
{
    void Test(IQueryProcessor p)
    {
        var query = new SomeQuery();

        // Instead of
        // string result = p.Process(query);

        // You write
        string result;
        p.Process(query, out result);
    }
}

The only drawback I can think of is that it's prohibiting usage of 'var'.