som-snytt/scala-rewrites

Scalafix Rewrites for Scala

Scalafix Rewrites for Scala

How to run the rewrites

Add the sbt-scalafix sbt plugin, with the SemanticDB compiler plugin enabled (official docs):

// project/plugins.sbt
addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.17")

// build.sbt
inThisBuild(List(
  semanticdbEnabled := true,
  semanticdbOptions += "-P:semanticdb:synthetics:on", // make sure to add this
  semanticdbVersion := scalafixSemanticdb.revision,
))

Then run the desired rewrite(s) (official docs), in sbt:

> scalafix dependency:fix.scala213.ExplicitNonNullaryApply@org.scala-lang:scala-rewrites:0.1.0`
> Test/scalafix dependency:fix.scala213.ExplicitNonNullaryApply@org.scala-lang:scala-rewrites:0.1.0

You can also add the following to your build.sbt:

ThisBuild / scalafixDependencies += "org.scala-lang" %% "scala-rewrites" % "0.1.0"

and then:

> scalafix fix.scala213.ExplicitNonNullaryApply
> Test/scalafix fix.scala213.ExplicitNonNullaryApply

To develop/contribute to any of the rewrites

sbt ~tests/test
# edit rewrites/src/main/scala/...