[Webkit-unassigned] [Bug 239290] Misc compiler warnings, April 2022 edition

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=239290

--- Comment #7 from Yusuke Suzuki <ysuzuki at apple.com> ---
(In reply to Michael Catanzaro from comment #6)
> ack, thanks for catching it! How scary. :(
> 
> It will happen again in the future, though, because I can't know where these
> areas may be, and we keep introducing more and more return type warnings.
> These make up probably >50% of the GCC warnings that I deal with.
> 
> One option is to give up and build with -Wno-return-type, because fixing up
> switch statements is getting pretty old. But sadly, it does seem like a
> useful warning except for this pattern with switch statements, so I'm a bit
> hesitant to do that.

Can GCC have a mechanism like this? I think it can suppress most of false positives.

1. emitting this warning for normal enum case
2. not emitting this for strongly scoped enum when switch handles all scoped enums

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