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Old 12-22-2017, 07:30 PM   #1
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Default Custom Build Errors

Hey Everyone!

This isn't really specific to WDL, but I thought I'd ask here since a lot of you guys should similar setups.

Does anyone know how to add a custom build error in Xcode? Basically what I'd like to do is have XCode throw a build error whenever there's a case in a switch statement that doesn't have a break. Since I definitely see the potential use of having fall-through cases without breaks, ideally I could add a special comment to those cases to override the error.

It's a pretty minor problem, but I've had a few debugging headaches due to it, and if what I'm imagining is easy to implement I think it'd be worth it.

I'm using Xcode 8.2.1 on macOS 10.12, and using Youlean's IPlug branch.

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Old 12-22-2017, 08:49 PM   #2
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clang has a warning for this that can be enabled with the -Wimplicit-fallthrough option (only if using at least C++11). It can be turned into an error using -Werror=implicit-fallthrough.

(GCC 7's implicit-fallthrough warning supports comments in addition to attributes as a way to specify fall-through is intended.

Last edited by cfillion; 12-22-2017 at 09:45 PM.
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