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The following commit(s) were added to refs/heads/main by this push:
new 8b4929235 fix: make -Yfuture-lazy-vals conditional for Scala 3.9+
(#1691)
8b4929235 is described below
commit 8b4929235dc05346059fb9af9d7e14b910b95a80
Author: He-Pin(kerr) <[email protected]>
AuthorDate: Fri Jun 19 01:26:09 2026 +0800
fix: make -Yfuture-lazy-vals conditional for Scala 3.9+ (#1691)
* fix: make -Yfuture-lazy-vals conditional for Scala 3.9+
Motivation:
Scala 3.9 removed the -Yfuture-lazy-vals compiler option as the behavior
is now the default. Passing this flag causes compilation errors on Scala
3.9+.
Modification:
Conditionally add -Yfuture-lazy-vals only when Scala minor version < 9
using CrossVersion.partialVersion check.
Result:
Project compiles on both Scala 3.3.x (which needs the flag) and
Scala 3.9+ (which has the behavior by default).
* chore: apply scalafmt to project/Common.scala
Motivation:
CI scalafmt check failed because project/Common.scala was not formatted.
Modification:
Ran scalafmt on the build file.
Result:
scalafmtSbtCheck and Code is formatted CI checks should pass.
Tests:
Not run - formatting only
---
project/Common.scala | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/project/Common.scala b/project/Common.scala
index d3adda42a..058c44562 100644
--- a/project/Common.scala
+++ b/project/Common.scala
@@ -65,7 +65,6 @@ object Common extends AutoPlugin {
"-release:17"),
scalacOptions ++= {
if (isScala3.value) Seq(
- "-Yfuture-lazy-vals",
"-Wconf:msg=Implicit parameters should be provided with a `using`
clause:s",
"-Wconf:msg=is deprecated for wildcard arguments of types:s",
"-Wconf:msg=The trailing ` _` for eta-expansion is unnecessary:s",
@@ -76,8 +75,10 @@ object Common extends AutoPlugin {
"-Wconf:msg=auto insertion will be deprecated:s",
"-Wconf:msg=Ignoring \\[this\\] qualifier:s",
"-Wconf:msg=trait App in package scala is deprecated:s",
- "-Wconf:msg=pattern binding uses refutable extractor:s",
- "-Wconf:msg=bad option.*-Yfuture-lazy-vals:s")
+ "-Wconf:msg=pattern binding uses refutable extractor:s") ++
+ (if (CrossVersion.partialVersion(scalaVersion.value).exists(_._2 < 9))
+ Seq("-Yfuture-lazy-vals", "-Wconf:msg=bad
option.*-Yfuture-lazy-vals:s")
+ else Seq.empty)
else Seq(
"-Xlint",
"-Ywarn-dead-code",
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