defclass-star(define-generic): Add :export as short export keyword.

[aartaka]

This adds a new keyword to define-generic. :export is an alias for :export-generic-name-p and provides the same functionality in a shorter form. It's also consistent with define-class slot :export option. So we can have our cake and eat it:

• :export-generic-name-p is consistent with :export-accessor-names-p etc.
• And :export is consistent with slot :export option.

That'll also save us some typing in Nyxt, as part of the move to nclasses that I'm working on.

[aadcg]

Do we have any other alias in the library? What justifies its addition?

[aartaka]

Do we have any other alias in the library? What justifies its addition?

We have alias macros for convenience:

• defgeneric* for define-generic.
• defclass* for define-class
• defcondition* for define-condition*.
• make* for make-instance*.

So yes, providing aliases for user's convenience is consistent with existing practices. I mean, nclasses is a convenience-first library, always was.

[aadcg]

Those aliases are of a different nature, as those symbols are exported from the library.

[aartaka]

Those aliases are of a different nature, as those symbols are exported from the library.

Fair, closing then.