Miss Dada  🏳️‍⚧️

Question: Is there no way to put statically defined named functions with all of them having the same signature in a collection type without using &dyn Fn or Box<dyn Fn>? My guess is no just want to make sure

You can with fn types

Huh TIL you can use fn as a type. Thanks! :D It worked now I won't have a vtable lookup :D

Oh no it turns out async fn is impl Future and now I can't do anything because you can't have that inside a trait

ok, yea that's a different story. I think you even won't be able to `Box` them, because every one of those functions can have a different return type (different future), so even if the `async fn` declaration looks like they all have the same return type, they don't

When I say "box everything", I'm including the future itself. e.g. `Box::new(|args| async_fn(args).map(|f| f.boxed()))`

Which would let you have `Vec<Box<dyn Fn(Args) -> Pin<Box<dyn Future<Output = Whatever>>>>>`

yea, but at that point you don't need to box the function anymore. You can just get a `fn(Args) -> Pin<Box<dyn Future<Output = Whatever>>>` for each element in the `Vec`