Re: Opaque objects and Emacs documentation

[Dmitry Gutov]

On 19.07.2020 17:48, Eli Zaretskii wrote:
>    . a predicate to test whether an arbitrary Lisp value is an object
>      of that type

A predicate would look like:

(defun project-instance-p (pr)
  (condition-case nil
      (progn
        (project-roots pr)
        t)
    (error
     nil)))

But I don't see how it's going to help you write documentation.

And no code is going to call it, so it's not defined.

>    . a function to compare two objects of this type

As discussed, it's a little function called 'equal'.

If we find out we need something more complex, we'll add it.