This is really, really hard to do because it would overcomplicate the
language grammar, as it would have to take comments into account at every
step. I am not even sure if it is possible. If someone wants to try it out
though. :)

That's why most tools end-up handling comments on the side, separated from
parsing.

*José Valim*
www.plataformatec.com.br
Skype: jv.ptec
Founder and Director of R&D

On Sun, Sep 16, 2018 at 6:59 PM, Steve Morin <steve.mo...@gmail.com> wrote:

> Wanted to see what peoples thoughts are about adding comments to the AST.
>
> One use-case is to be able to parse and manipulate Source files outside of
> just macros but in that case you would want to be able to preserve
> comments.
>
> E.g. Read a source file, manipulate it, write that source file back to a
> file.
>
> This would allow people/tooling to use elixir to parse and manipulate
> source files.
>
> If this might disturb existing consumers of the AST maybe this could be
> added as a option to existing Macro functions so that I could be turned on
> for people with this use-case.
>
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