The current spec at S11:363 indicates that version/auth information of a class/module/grammar/role should be specified in the statement, e.g.

class Dog:authcpan:JRANDOM:ver<1.2.1>;

However, its counterpart:

use Dog:authcpan:JRANDOM:ver<1.2.1>;

applies to a file, therefore a UNIT, and to all code residing in that file, regardless of what is in there. In other words: -use- is just a way of smartfinding a file to load the code of.

I've therefore come to the conclusion that we need to make this more generic, and that we should have a way to identify the unit, rather than anything inside it.

I therefore propose to remove all auth/ver related information from class/module/grammar and the like, and create a new statement "unit":

unit Dog:authcpan:JRANDOM:ver<1.2.1>;

Only one -unit- statement would be valid per file. And it would be used by packagers / installers to let the system know what it is.

It should probably only be legal when reading from a file, although I could see uses for "eval" as well.

I think this would make things a lot clearer than the current specification.