run scalap for your project from sbt

scalap.sbt

scalaVersion := "2.11.4"

libraryDependencies += "org.scala-lang" % "scalap" % scalaVersion.value

InputKey[Unit]("scalap") := {
  import complete.DefaultParsers._
  val classes = spaceDelimited("<class names>").parsed
  val pathSeparator = java.lang.System.getProperty("path.separator")
  val classpath = "-classpath" :: (fullClasspath in Compile).value.map(_.data).mkString(pathSeparator) :: Nil
  val args = "-verbose" :: classpath ::: classes.toList
  scala.tools.scalap.Main main args.toArray
}