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https://issues.apache.org/jira/browse/LOG4J2-3524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17765065#comment-17765065
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Florian Schmaus commented on LOG4J2-3524:
-----------------------------------------
bq. PMC is considering how to proceed with log4j-scala. Are you using it? What
is your use case? Where does log4j-scala shine for you compared to using
log4j-api directly?
The case for a Scala API for LOG4J is that Scala Macros allow to efficiently
elide log sites that are not active/enabled. This is not possible when using
log4j's Java API directly. This Macro magic is done in scala-logging and in the
code in log4j-scala (which is heavily inspired by scala-logging).
If I where to use scala-logging, as suggested, then I had to add
log4j-sfl4j-impl to my project. And I like to avoid dependencies whenever
possible. :)
I currently use the exact code of my PR in a Scala 3.3 project. It's just 2
Scala files.
> support scala 3.0
> -----------------
>
> Key: LOG4J2-3524
> URL: https://issues.apache.org/jira/browse/LOG4J2-3524
> Project: Log4j 2
> Issue Type: Improvement
> Components: Scala API
> Affects Versions: Scala 12.1
> Reporter: PJ Fanning
> Priority: Major
> Time Spent: 50m
> Remaining Estimate: 0h
>
> This commit -
> [https://github.com/apache/logging-log4j-scala/commit/63584bb16ec735fb162abf22db977b2832418e62]
> - will mean that log4j-scala will only support Scala 3.1.x and not Scala
> 3.0.x.
> See [https://www.scala-lang.org/blog/2022/02/01/scala-3.1.1-released.html]
> ```
> Scala 3 has excellent backward compatibility guarantees between the minor
> versions. Right now, that means that code compiled with Scala 3.1 can depend
> on libraries published with 3.0 without any problems. The opposite, hovewer,
> is not true. Code compiled with 3.0 is not able to read dependencies compiled
> with 3.1. After the recent release of Scala 3.1.0, we can see that libraries
> should be really cautious with updating the compiler version, as it forces a
> bump on every user of that library.
> ```
>
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