Re: [Qemu-devel] clang-tidy: use g_new() family of functions

[Markus Armbruster <armbru@redhat.com>]

Marc-André Lureau <marcandre.lureau@gmail.com> writes:

> Hi
>
>
>> Suggest you show us cool things you can do with clang-tidy that haven't
>> been done with Coccinelle :)
>>
> Well to do that I would have to have a transformations to do & know the
> limits/strength of coccinelle & clang-tidy, I am not there yet... Today, I
> prefer invest in clang-tidy for what I need to do.

With any luck, you'll soon enough run into something that hasn't been
done with Coccinelle.

> We already discussed some of the pros/cons of coccinelle vs tidy her and in
> the previous round-up series. For ex, clang-tidy is able to evaluate
> constant expressions, so you can write generic rules that you can't capture
> with coccinelle yet (A + B-1) / B * B:
> https://github.com/elmarco/clang-tools-extra/blob/master/clang-tidy/qemu/RoundCheck.cpp
> .
>
> However, I think it is more difficult to write clang-tidy transformation
> that spans accross various code paths (like adding errors/free/locks etc).
> Coccinelle makes that fairly easily apparently.

Fortunately, we can use both.

I'm not so fond of doing the same things with both, though :)