I had a [[fallthrough]] patch, but internal C code got in the way: - https://en.cppreference.com/w/c/language/attributes/fallthrough - https://bugs.webkit.org/show_bug.cgi?id=265789
Using them directly where we can seems nice for (new) readers of the code at least. Not sure what a macro for [[fallthrough]] would buy us for instance. > On Jan 25, 2024, at 12:28 AM, Ryosuke Niwa via webkit-dev > <webkit-dev@lists.webkit.org> wrote: > > If we’re adopting [[maybe_unused]], do we just write that directly in each > function declaration / definition? Or do we define some a macro to do that > anyway? > > What bout other kinds of attributes like [[noreturn]], [[fallthrough]], and > [[likely]]? Are we gonna start writing them directly in code, or are we gonna > continue to use macros? > > - R. NIwa > >> On Jan 24, 2024, at 9:49 AM, Chris Dumez via webkit-dev >> <webkit-dev@lists.webkit.org> wrote: >> >> Hi, >> >> Thanks for starting this discussion. >> >> I personally think it would be nice for us to switch to [[maybe_unused]] >> since it is now part of the language and it seems to fit our needs. However, >> I do think we should be consistent and stop using UNUSED_PARAM() / >> ASSERT_UNUSED() in new code entirely then. >> >> So if we decide to switch, I think should add style checks to prevent using >> UNUSED_PARAM() / ASSERT_UNUSED() and recommend using [[maybe_unused]] >> instead. Eventually, we should try to phase out existing usage of these >> macros so that we can remove them entirely. >> >> Cheers, >> Chris. >> >>> On Jan 24, 2024, at 9:34 AM, Alex Christensen via webkit-dev >>> <webkit-dev@lists.webkit.org> wrote: >>> >>> For many years we have used the UNUSED_PARAM macros, and we have almost >>> 3000 of them. C++17 introduced [[maybe_unused]] for this purpose, and a >>> few uses of it are starting to pop up in WebKit. Should we switch, should >>> we transition, should we allow both, or should we just stick with >>> UNUSED_PARAM? >>> _______________________________________________ >>> webkit-dev mailing list >>> webkit-dev@lists.webkit.org >>> https://lists.webkit.org/mailman/listinfo/webkit-dev >> >> _______________________________________________ >> webkit-dev mailing list >> webkit-dev@lists.webkit.org >> https://lists.webkit.org/mailman/listinfo/webkit-dev > > _______________________________________________ > webkit-dev mailing list > webkit-dev@lists.webkit.org > https://lists.webkit.org/mailman/listinfo/webkit-dev
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