Defining functions within `condition-case'

Defining functions within `condition-case'

[Jean Louis]

Is there any argument against following notion:

;; -*- lexical-binding: t; -*-

(condition-case my

    (defun my-2-hello ()
      (message "I am `my-hello'"))
      
  (error (message "%s" my)))

(my-2-hello) ➜ "I am ‘my-hello’"

I am testing it, it seems that it works.

The reason for this is website application development. I would like
to ensure that, in case of any errors, I can access a function to
inform me what went wrong. These errors should be presented over an
HTTP connection, and I do not intend to inspect them through Emacs
directly.

Jean Louis

Re: Defining functions within `condition-case'

[Michael Heerdegen via Users list for the GNU Emacs text editor]

Jean Louis <bugs@gnu.support> writes:

> ;; -*- lexical-binding: t; -*-
>
> (condition-case my
>
>     (defun my-2-hello ()
>       (message "I am `my-hello'"))
>       
>   (error (message "%s" my)))
>
> (my-2-hello) ➜ "I am ‘my-hello’"

You are aware that this doesn't catch runtime errors, only errors that
appear when evaluating the `defun'?  The above will not be of much use
unless your code contains lots of very strange and malformed defuns like
(defun 1).


Michael.

Re: Defining functions within `condition-case'

[Jean Louis]

* Michael Heerdegen via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org> [2024-12-25 22:57]:
> Jean Louis <bugs@gnu.support> writes:
> 
> > ;; -*- lexical-binding: t; -*-
> >
> > (condition-case my
> >
> >     (defun my-2-hello ()
> >       (message "I am `my-hello'"))
> >       
> >   (error (message "%s" my)))
> >
> > (my-2-hello) ➜ "I am ‘my-hello’"
> 
> You are aware that this doesn't catch runtime errors, only errors that
> appear when evaluating the `defun'?  The above will not be of much use
> unless your code contains lots of very strange and malformed defuns like
> (defun 1).

I am not aware how it works, did not do enough testing 🤔.

I will not use that approach, but must find way to report error on
HTTP or in HTTP manner, not within Emacs.

Is there way to replace debug reporting function?


-- 
Jean Louis