Re: when to call provide, first or last?

[Le Wang]

On Mon, Feb 27, 2012 at 8:59 PM, Juanma Barranquero <address@hidden> wrote:

On Mon, Feb 27, 2012 at 13:47, Le Wang <address@hidden> wrote:

> Is there some disadvantage to calling it first that I'm not seeing?

Try loading this file my-feature.el:

;;; starts here
(provide 'my-feature)
)
(defun my-function ()
 "")
;;; ends here

with  emacs -Q -l my-feature.el, and you'll get:

load-with-code-conversion: Invalid read syntax: ")"

(featurep 'my-feature) => t
(fboundp 'my-function) => nil

What happens next?  You have broken code, and you're either looking at the backtrace or you get a ding.  How is this a problem?
 

In other words, having `provide' at the end guarantees that the
feature does not enter the feature list unless the file was correctly
loaded.

    Juanma

-- 
Le