How can I tell scalac to suppress warnings is macro-generated code?

Asked Jun 15 '21 at 21:57

Active Jun 19 '21 at 16:31

Viewed 306 times

I'm currently using a macro (ZIO's @mockable) whose generated code is causing a compilation error that is causing my build to fail:

[error] /home/me/xxx/backend/<macro>:5:204: parameter value rts in anonymous function is never used
[error]   val compose: _root_.zio.URLayer[_root_.zio.Has[_root_.zio.test.mock.Proxy], zio.Has[my.package.database.firestore.Firestore.Service]] = _root_.zio.ZLayer.fromServiceM(((proxy) => withRuntime.map(((rts) => {
[error]                                                                                                                                                                                                            ^
[error] one error found

How can I suppress this warning? I've tried adding "-Wconf:src=.*<macro>:silent" (with and without escaping < and >) but with no luck.

edited Jun 19 '21 at 16:31

Dmytro Mitin

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asked Jun 15 '21 at 21:57

tjarvstrand

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Does `-Ywarn-macros:before` works for you? – Luis Miguel Mejía Suárez Jun 15 '21 at 22:11
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I'm afraid not. I need to have `"-Wmacros:after"` set because of other macros :/ – tjarvstrand Jun 16 '21 at 08:13
Can you use `@nowarn`? https://stackoverflow.com/questions/3506370/is-there-an-equivalent-to-suppresswarnings-in-scala – Dmytro Mitin Jun 20 '21 at 08:52
Open a PR for the same issue than you: https://github.com/zio/zio/pull/6472 – Luc DUZAN Mar 24 '22 at 16:42

How can I tell scalac to suppress warnings is macro-generated code?

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