Re: Any disadvantages of using put/get instead of defvar?

[Oleh]

>> The situation is that I have a function that uses one global variable.
>> It's for sure that no other function will want this variable.  In an
>> effort to have all code in one place I want to move from:
>>
>>     (defvar bar-foo 1)
>>     (defun bar ()
>>       ;; use bar-foo here
>>       )
>>
>> to:
>>
>>     (defun bar ()
>>       (let ((foo (or (get 'bar 'foo) 1)))
>>         ;; use foo here
>>         ))
>>
>> So the advantage is that I can move and rename the function without
>> worry that the function/variable coupling will break, because now
>> everything is inside one function.
>
> You could also define the variable inside the function, i.e., that's a
> buffer-local counter:
>
>   (defun counter ()
>     (defvar counter-var 1)
>     (setq-local counter-var (1+ counter-var)))
>

Thanks, Tassilo,

But doesn't `defvar` introduce overhead this way?

I've looked at `(symbol-function 'counter)` and `(byte-compile 'counter)`
and it seems that it does.

regards,
Oleh