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Upgrade to Scala 2.13.10 #25717

Merged
merged 1 commit into from
Nov 28, 2022
Merged

Upgrade to Scala 2.13.10 #25717

merged 1 commit into from
Nov 28, 2022

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ioannakok
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@ioannakok ioannakok commented Nov 25, 2022

Closes #25548

What does this change?

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Also changing sbt compiler option -target to -release as the former got deprecated with scala/scala#9982
@@ -22,7 +22,7 @@ object ProjectSettings {
scalacOptions ++= Seq(
"-unchecked",
"-deprecation",
"-target:jvm-1.8",
"-release:11",
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-target got deprecated in Scala 2.13.9.

I am not entirely sure why we had jvm-1.8 here. The minimum JVM version this code requires is 11 and -release:8 throws errors. I might be misunderstanding the difference between the old -target and new -release though. If anyone knows more about this, an explanation would be much appreciated since I would like to understand this better!

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I am not entirely sure why we had jvm-1.8 here.

I think it was just missed in the various stages of adopting Java 11 (eg #24064 maybe).

Well done on using the colon in "-release:11" by the way! The PR description in scala/scala#9982 seems to suggest it should be "-release 11", but for that the scalac compiler says:

[warn] bad option '-release 11' was ignored

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either form is ok, but two tokens in the build file, Seq("--release", "11"). (I prefer the colon.)

Worth adding that --target affects the "classfile version" but scalac generally does not leverage JVM features where it matters. TIL a decade ago the setting mattered more to scalac.

@ioannakok ioannakok marked this pull request as ready for review November 25, 2022 17:20
@ioannakok ioannakok requested a review from a team as a code owner November 25, 2022 17:20
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ioannakok commented Nov 25, 2022

Deployed successfully to CODE

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Brilliant! Nice work.

@@ -22,7 +22,7 @@ object ProjectSettings {
scalacOptions ++= Seq(
"-unchecked",
"-deprecation",
"-target:jvm-1.8",
"-release:11",
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Choose a reason for hiding this comment

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I am not entirely sure why we had jvm-1.8 here.

I think it was just missed in the various stages of adopting Java 11 (eg #24064 maybe).

Well done on using the colon in "-release:11" by the way! The PR description in scala/scala#9982 seems to suggest it should be "-release 11", but for that the scalac compiler says:

[warn] bad option '-release 11' was ignored

@ioannakok ioannakok merged commit 33605c2 into main Nov 28, 2022
@ioannakok ioannakok deleted the ioanna/upgrade-to-scala-2.13.10 branch November 28, 2022 10:28
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Seen on PROD (merged by @ioannakok 26 minutes and 42 seconds ago)

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Upgrade frontend to Scala 2.13.10
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