Question

I have a pair of static fields with a complicated one-time initialization. I want this initialization to happen lazily, a la the standard singleton pattern.

However, the initialization procedure involves both fields, so I can’t separate it into two different singletons.

What’s the best way to handle this?

Answer 1

I’m currently doing it like this:

class OuterType {
    //...

    static class FieldInitializer {
        public static readonly SomeType field1, field2;

        static FieldInitializer() {
            //Complicated code that sets both fields together
        }
    }

    //...
}

Does anyone have any other ideas?