bug#17446: 24.4.50; What is the situation around `called-interactively-p'?

[Thierry Volpiatto]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>>> > Before we go about doing that, I'd want to know one more thing: how did
>>> > icicles and helm does with it, in previous versions of Emacs?
>>> Icicles did nothing - the bug existed, just as in vanilla Emacs.
>
> In which sense did it exist in vanilla Emacs?

(eval (count-words nil nil))
=> eval: Wrong type argument: integer-or-marker-p, nil

We were using a condition-case returning an error message in such cases.

See

https://lists.gnu.org/archive/html/emacs-bug-tracker/2013-08/msg00161.html

>> It was the same with helm.
>
> IOW, this is a long standing problem, for which
> called-interactively-p-functions provides a limited workaround?

Yes, seems fragile too.

Another approch would be to allow more args to `call-interactively',
this would allow one to use:

(apply 'call-interactively '(sexp arg1 arg2 arg...))

But not sure this would cover all use cases.

-- 
Thierry
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