Func<> with unknown number of parameters

Question

Consider the following pseudo code:

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


        

Answer 1

In some cases you may be able to get away with a trick like this:

public static class MyClass
{
    private static T CommonWorkMethod(Func wishMultipleArgsFunc)
    {
        // ... do common preparation
        T returnValue = wishMultipleArgsFunc();
        // ... do common cleanup
        return returnValue;
    }

    public static int DoCommonWorkNoParams() => CommonWorkMethod(ProduceIntWithNoParams);
    public static long DoCommonWorkWithLong(long p1) => CommonWorkMethod(() => ProcessOneLong(p1));
    public static string DoCommonWorkWith2Params(int p1, long p2) => CommonWorkMethod(() => ConvertToCollatedString(p1, p2));

    private static int ProduceIntWithNoParams() { return 5; }
}