Pre-RFC: global_generic — crate-level type parameters

[newpavlov]

Another relevant proposal:

Idea: façade crates

We have a number of crates which define an interface. This interface gets used by other library crates, but its implementation gets defined only in a root binary crate (or as part of dev dependencies). Examples include: alloc log::Log getrandom Global executors Some other parts of std such as panic_fmt and OOM hooks They follow the same general pattern, but use different ad hoc solutions, which often also include runtime overhead due to dependency on dynamic dispatch. It could be beneficial …