RemoveUnused does not clean Scala 3 style wildcard import with -Xsource:3

[xuwei-k]

step

build.sbt

scalaVersion := "2.13.8"

semanticdbEnabled := true

scalacOptions ++= Seq("-Wunused", "-Xsource:3")

project/build.properties

sbt.version=1.7.1

project/plugins.sbt

addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.10.1")

Main.scala

import scala.collection.mutable
import scala.util._
import scala.io.*

object Main

run: sbt "scalafix RemoveUnused"

actual

log

[warn] /Users/kenji/remove-unused-scala-3-syntax/Main.scala:1:25: Unused import
[warn] import scala.collection.mutable
[warn]                         ^
[warn] /Users/kenji/remove-unused-scala-3-syntax/Main.scala:2:19: Unused import
[warn] import scala.util._
[warn]                   ^
[warn] /Users/kenji/remove-unused-scala-3-syntax/Main.scala:3:17: Unused import
[warn] import scala.io.*
[warn]                 ^
[warn] three warnings found
[info] Running scalafix on 1 Scala sources
[success] Total time: 3 s, completed Aug 31, 2022, 4:36:11 AM

diff

@@ -1,5 +1,4 @@
-import scala.collection.mutable
-import scala.util._
+
 import scala.io.*

expect

remove import scala.io.*

[xuwei-k]

note: different position if Scala 3 style wildcard 🤔

import scala.io.*
^^^^^^^^^^^^^^^^^

import scala.util._
                  ^

--- a/scalafix-rules/src/main/scala/scalafix/internal/rule/RemoveUnused.scala
+++ b/scalafix-rules/src/main/scala/scalafix/internal/rule/RemoveUnused.scala
@@ -65,6 +65,7 @@ class RemoveUnused(config: RemoveUnusedConfig)
 
     doc.diagnostics.foreach { diagnostic =>
       if (config.imports && diagnostic.message == "Unused import") {
+        println(diagnostic)
         isUnusedImport += diagnostic.position
``

[xuwei-k]

scalafix/scalafix-rules/src/main/scala/scalafix/internal/rule/RemoveUnused.scala

Line 135 in f7944df

case i if isUnusedImport(importPosition(i)) =>

Maybe isUnusedImport(importPosition(i)) return false if Scala 3 style wildcard.