Func<> with unknown number of parameters

Question

Consider the following pseudo code:

TResult Foo<TResult>(Func<T1, T2,...,Tn, TResult> f, params object[] args)
{
    TResult result = f(args);
    return result;
}

The function accepts Func<> with unknown number of generic parameters and a list of the corresponding arguments. Is it possible to write it in C#? How to define and call Foo? How do I pass args to f?

Answer 1

That's not possible. At best, you could have a delegate that also takes a variable number of arguments, and then have the delegate parse the arguments

TResult Foo<TResult>(Func<object[], TResult> f, params object[] args)
{
    TResult result = f(args);
    return result;
}

Foo<int>(args =>
{
    var name = args[0] as string;
    var age = (int) args[1];

    //...

    return age;
}, arg1, arg2, arg3);