How can we evaluate buffer but also must clear...

How can we evaluate buffer but also must clear...

[Budi]

How can we evaluate buffer but also must clear the undefined or unset
function or variable in the .el file contained in that buffer ?

Re: How can we evaluate buffer but also must clear...

[Xavier Maillard]

> From: Budi <budikusasi@gmail.com>
> Date: Thu, 13 Jun 2019 20:52:13 +0700
> 
> How can we evaluate buffer 

You can use the function `eval-buffer' (describe-function 'eval-buffer)

> but also must clear the undefined or unset
> function or variable in the .el file contained in that buffer ?

I do not understand that part, sorry.

        - xma

GPG:  BA4909B7 8F04DE1B

Re: How can we evaluate buffer but also must clear...

[조성빈 via help-gnu-emacs]

2019. 6. 14. 오후 12:46, Xavier Maillard <xavier@maillard.im> 작성:

>> From: Budi <budikusasi@gmail.com>
>> Date: Thu, 13 Jun 2019 20:52:13 +0700
>> 
>> but also must clear the undefined or unset
>> function or variable in the .el file contained in that buffer ?
> 
> I do not understand that part, sorry.

Looks like he’s finding a way to ‘erase’ variables that the file once defined (but currently doesn’t, as the definition was removed).
For example, if there is such way, I could reload the init file after removing some var/fun decls and expect the vars/funs undefined or have default values.
Said that, I doubt there will be such way. Maybe parsing a diff would work?̊̈



>        - xma
> 
> GPG:  BA4909B7 8F04DE1B
> 

Re: How can we evaluate buffer but also must clear...

[abdulbadii]

Re: How can we evaluate buffer but also must clear...

[Noam Postavsky]

On Fri, 14 Jun 2019 at 03:32, 조성빈 via help-gnu-emacs
<help-gnu-emacs@gnu.org> wrote:

> Looks like he’s finding a way to ‘erase’ variables that the file once defined (but currently doesn’t, as the definition was removed).
> For example, if there is such way, I could reload the init file after removing some var/fun decls and expect the vars/funs undefined or have default values.
> Said that, I doubt there will be such way. Maybe parsing a diff would work?̊̈

If you (provide 'init), then perhaps (unload-feature 'init) before
reloading could work.