bug#17871: 24.4.50; (elisp) `Core Advising Primitives': interactive spec as function?

[Michael Heerdegen]

Drew Adams <drew.adams@oracle.com> writes:

> This node says this:
>
>   One exception: if the interactive
>   spec of FUNCTION is a function (rather than an expression or a
>   string), then the interactive spec of the combined function will
>   be a call to that function with as sole argument the interactive
>   spec of the original function.
>
> I'm unfamiliar with an interactive spec (i.e., the SPEC in
> (interactive SPEC) being a function, rather than an expression or
> a string.  I cannot find anything else in the manual that refers to
> this possibility.  Please document this feature.  Or if it is in
> fact documented already, please cross-reference that location from
> this node.

AFAIK using a function as interactive SPEC is only useful for functions
used as advices, so there is nothing to cross-reference.  And the node
explains well how it works.  What information is missing in your
opinion?

Michael.