build.sbt

scalaVersion := "3.1.3-RC1-bin-20220325-6f3fe05-NIGHTLY"

run / fork := true

libraryDependencies ++= Seq(
  "io.get-coursier" % "coursier" % "2.1.0-M5" cross CrossVersion.for3Use2_13,
  "org.scala-lang" %% "scala3-tasty-inspector" % scalaVersion.value,
  "org.wartremover" %% "wartremover" % "3.0.0-RC4",
)

result.txt

sbt-shell > run org.typelevel cats-core
[info] running (fork) example.WartremoverTastyInspector org.typelevel cats-core
[info] start inspect cats-core_3-2.7.0.jar
[info] tasty file count = 902
[error] -- Error: core/src/main/scala/cats/instances/vector.scala:174:22 ---------------
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] -- Error: core/src/main/scala/cats/instances/seq.scala:136:22 ------------------
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] -- Error: core/src/main/scala/cats/instances/list.scala:24:60 ------------------
[error] [wartremover:ListAppend] Don't use List `:+` method because too slow
[error] -- Error: core/src/main/scala-2.13+/cats/instances/arraySeq.scala:165:22 -------
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] -- Error: core/src/main/scala/cats/data/NonEmptyList.scala:128:23 --------------
[error] [wartremover:ListAppend] Don't use List `:+` method because too slow
[error] -- Error: core/src/main/scala/cats/data/NonEmptyList.scala:648:37 --------------
[error] [wartremover:ListAppend] Don't use List `:+` method because too slow
[error] 6 errors found
[info] start inspect cats-kernel_3-2.7.0.jar
[info] tasty file count = 301
[error] -- Error: kernel/src/main/scala/cats/kernel/instances/SortedMapInstances.scala:93:8 
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] -- Error: kernel/src/main/scala/cats/kernel/instances/SortedMapInstances.scala:74:6 
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] -- Error: kernel/src/main/scala/cats/kernel/instances/SetInstances.scala:20:13 -
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] -- Error: kernel/src/main/scala/cats/kernel/instances/SetInstances.scala:21:13 -
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] -- Error: kernel/src/main/scala/cats/kernel/instances/MapInstances.scala:63:8 --
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] -- Error: kernel/src/main/scala/cats/kernel/instances/MapInstances.scala:50:6 --
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] -- Error: kernel/src/main/scala/cats/kernel/instances/BitSetInstances.scala:19:13 
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] -- Error: kernel/src/main/scala/cats/kernel/instances/BitSetInstances.scala:20:13 
[error] [wartremover:SizeIs] Maybe you can use `sizeIs` instead of `size`
[error] 8 errors found
[info] start inspect scala3-library_3-3.0.2.jar
[info] tasty file count = 74
[error] -- Error: library/src/scala/IArray.scala:259:92 --------------------------------
[error] [wartremover:RedundantConversions] redundant toSeq conversion
[error] -- Error: library/src/scala/IArray.scala:272:82 --------------------------------
[error] [wartremover:RedundantConversions] redundant toSeq conversion
[error] -- Error: library/src/scala/IArray.scala:298:81 --------------------------------
[error] [wartremover:RedundantConversions] redundant toSeq conversion
[error] -- Error: library/src/scala/IArray.scala:299:101 -------------------------------
[error] [wartremover:RedundantConversions] redundant toSeq conversion
[error] -- Error: library/src/scala/IArray.scala:300:50 --------------------------------
[error] [wartremover:RedundantConversions] redundant toSeq conversion
[error] -- Error: library/src/scala/IArray.scala:301:50 --------------------------------
[error] [wartremover:RedundantConversions] redundant toSeq conversion
[error] -- Error: library/src/scala/IArray.scala:307:10 --------------------------------
[error] [wartremover:RedundantConversions] redundant toSeq conversion
[error] 7 errors found
[info] start inspect simulacrum-scalafix-annotations_3-0.5.4.jar
[info] tasty file count = 3
[info] start inspect scala-library-2.13.6.jar
[info] tasty file count = 0
[success] Total time: 166 s (02:46), completed Mar 27, 2022 11:44:44 PM

WartremoverTastyInspector.scala

package example

import org.wartremover.LogLevel
import org.wartremover.WartTraverser
import org.wartremover.WartUniverse
import scala.quoted.Quotes
import scala.tasty.inspector.Inspector
import scala.tasty.inspector.Tasty
import scala.tasty.inspector.TastyInspector

object WartremoverTastyInspector {
  extension (groupId: String) {
    def %(artifactId: String): coursier.core.Module =
      coursier.core.Module(
        coursier.core.Organization(groupId),
        coursier.core.ModuleName(artifactId),
        Map.empty
      )

    def %%(artifactId: String): coursier.core.Module =
      %(artifactId + "_3")
  }

  extension (module: coursier.core.Module) {
    def %(version: String): coursier.core.Dependency =
      coursier.core.Dependency(module, version)
  }

  def main(args: Array[String]): Unit = {
    val jarName = args match {
      case Array(groupId, artifactId, version) =>
        (groupId %% artifactId % version)
      case Array(groupId, artifactId) =>
        (groupId %% artifactId % "latest.release")
      case _ =>
        println("usage: groupId artifactId version")
        sys.exit(0)
    }
    val jars = coursier.Fetch().addDependencies(jarName).run()
    jars.foreach { jar =>
      println("start inspect " + jar.getName)
      run(
        traverser = {
          import org.wartremover.warts.*
          List[WartTraverser](
            ArrayEquals,
            CollectHeadOption,
            DropTakeToSlice,
            FilterHeadOption,
            FilterSize,
            GetGetOrElse,
            GetOrElseNull,
            ListAppend,
            ListUnapply,
            RedundantConversions,
            ReverseFind,
            ReverseTakeReverse,
            ScalaApp,
            SizeIs,
            SortFilter,
            ThreadSleep,
          ).reduceLeft(_ compose _)
        },
        jars = jar.getAbsolutePath :: Nil,
        dependenciesClasspath = jars.map(_.getAbsolutePath).toList,
      )
    }
  }

  def run(
    traverser: WartTraverser,
    jars: List[String],
    dependenciesClasspath: List[String],
  ): Unit = {
    val inspector = new Inspector {
      def inspect(using q: Quotes)(tastys: List[Tasty[q.type]]): Unit = {
        import q.reflect.*
        val universe: WartUniverse.Aux[q.type] =
          WartUniverse(onlyWarning = false, logLevel = LogLevel.Debug, quotes = q)
        val treeTraverser = traverser.apply(universe)
        val count = tastys.size
        println("tasty file count = " + count)
        tastys.foreach { tasty =>
          val tree = tasty.ast
          treeTraverser.traverseTree(tree)(tree.symbol)
        }
      }
    }
    TastyInspector.inspectAllTastyFiles(
      tastyFiles = Nil,
      jars = jars,
      dependenciesClasspath = dependenciesClasspath,
    )(inspector)
  }
}