Unboxed closures

A relatively complete description of by reference closures that aims to encompass entirety of current thinking, except for bound lifetimes.

cc @pcwalton
On Thu, Jun 12, 2014 at 02:03:31AM -0700, Huon Wilson wrote:
> Does https://github.com/rust-lang/rfcs/pull/48 cover [exclusive traits] at all?

Not in and of itself, though it does lay the groundwork. I think the
way to express exclusive traits would be to add a negative trait
bound, so that you could do something like

    trait Even { }
    trait Odd : !Even { }