Can I convert a delegate to a C# function pointer? (eg. delegate* managed<void>)

[cyraid]

As the title suggests, is there a way to convert a delegate into a managed function pointer? (https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/proposals/csharp-9.0/function-pointers) .. I'm using them, and they work great, but I don't want to use "&func" in an unsafe context, I was hoping the underlying method call could access it, and I can just provide a delegate.

[DaZombieKiller]

You can currently only do this if the delegate has no target, is not a DynamicMethod and is static (as far as I know):

static bool TryGetFunctionPointer(Delegate d, out void* pointer)
{
    ArgumentNullException.ThrowIfNull(d);
    var method = d.Method;

    if (d.Target is {} || !method.IsStatic || method is DynamicMethod)
    {
        pointer = null;
        return false;
    }

    pointer = (void*)method.MethodHandle.GetFunctionPointer();
    return true;
}

SharpLab Sample

[cyraid]

It totally works! Thank you very much! Now I don't have to do a &Method and unsafe! :) .. It's too bad it doesn't work with lambda but that's quite alright.

Thanks again man!