compiler.sbt

crossScalaVersions in ThisBuild := Seq("2.11.12", "2.12.6")

scalaVersion in ThisBuild := "2.12.6"

scalacOptions in ThisBuild := {
	/*scalafixScalacOptions.value*/ Nil ++
		(CrossVersion.partialVersion(scalaVersion.value) match {

			/** See also [[https://tpolecat.github.io/2014/04/11/scalac-flags.html ''Useful Scalac Flags'']]. */
			case Some((2, 11)) =>
				"-encoding" :: "UTF-8" ::
					"-target:jvm-1.8" ::
					Nil

			/** See also [[https://tpolecat.github.io/2017/04/25/scalac-flags.html ''Recommended Scalac Flags for 2.12'']]. */
			case Some((2, 12)) =>
				"-encoding" :: "UTF-8" ::
					"-target:jvm-1.8" ::
					"-deprecation" ::
					"-explaintypes" ::
					"-feature" ::
					// "-language:existentials" ::
					// "-language:experimental.macros" ::
					// "-language:higherKinds" ::
					// "-language:implicitConversions" ::
					"-unchecked" ::
					"-Xcheckinit" ::
					"-Xfatal-warnings" ::
					// "-Xfuture" ::
					// "-Xlint" ::
					"-Xlint:-unused,_" ::
					"-Yno-adapted-args" ::
					"-Ypartial-unification" ::
					"-Ywarn-dead-code" ::
					"-Ywarn-extra-implicit" ::
					"-Ywarn-inaccessible" ::
					"-Ywarn-infer-any" ::
					"-Ywarn-nullary-override" ::
					"-Ywarn-nullary-unit" ::
					"-Ywarn-numeric-widen" ::
					// "-Ywarn-unused:implicits" ::
					// "-Ywarn-unused:imports" ::
					// "-Ywarn-unused:locals" ::
					// "-Ywarn-unused:params" ::
					// "-Ywarn-unused:patvars" ::
					// "-Ywarn-unused:privates" ::
					// "-Ywarn-value-discard" ::
					Nil

			case _ =>
				Nil

		})

}