Re: native-comp *Warnings* buffer

[Eric Abrahamsen <eric@ericabrahamsen.net>]

Andrea Corallo via "Emacs development discussions."
<emacs-devel@gnu.org> writes:

> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>
>> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>>
>>> I understand the utility of having these warnings, but does the buffer
>>> need to be popped up every thirty seconds? Couldn't it just be displayed
>>> once, when it's created, and then left alone? Compilation has been going
>>> on for several minutes since rebuilding Emacs, and it's actually hard to
>>> use with *Warnings* occupying my other window every few seconds!
>>
>> I should say that I know about
>> `native-comp-async-report-warnings-errors', and I'd actually like to see
>> these warnings (as many of them are about my own code :(), I'd just like
>> to have them in the background.
>
> Hi Eric,
>
> unfortunately new warnings are showed when they are found while
> compiling.  I agree this is annoying but at the same time I'm not sure
> this behavior wrong.
>
> Anyway in comp.el we just call `display-warning'.  If there's a better
> way to handle this any suggestion or patch is very welcome :)

It looks like `warning-suppress-types' might do it!

List of warning types not to display immediately.
If any element of this list matches the TYPE argument to ‘display-warning’,
the warning is logged nonetheless, but the warnings buffer is
not immediately displayed.
The element must match an initial segment of the list TYPE.
Thus, (foo bar) as an element matches (foo bar)
or (foo bar ANYTHING...) as TYPE.
If TYPE is a symbol FOO, that is equivalent to the list (FOO),
so only the element (FOO) will match it.

Let-binding this with 'comp in the value should do it.

We could add 'suppress or 'quiet as an alternate value
`native-comp-async-report-warnings-errors', and use that to optionally
change the value of `warning-suppress-types'.