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package mill.scalajslib
import java.io.File
import java.net.URLClassLoader
import ammonite.ops.Path
import mill.define.Discover
import mill.{Agg, T}
sealed trait OptimizeMode
object FastOpt extends OptimizeMode
object FullOpt extends OptimizeMode
sealed trait ModuleKind
object ModuleKind{
object NoModule extends ModuleKind
object CommonJSModule extends ModuleKind
}
class ScalaJSWorker {
private var scalaInstanceCache = Option.empty[(Long, ScalaJSBridge)]
private def bridge(toolsClasspath: Agg[Path]) = {
val classloaderSig =
toolsClasspath.map(p => p.toString().hashCode + p.mtime.toMillis).sum
scalaInstanceCache match {
case Some((sig, bridge)) if sig == classloaderSig => bridge
case _ =>
val cl = mill.util.ClassLoader.create(
toolsClasspath.map(_.toIO.toURI.toURL).toVector,
getClass.getClassLoader
)
val bridge = cl
.loadClass("mill.scalajslib.bridge.ScalaJSBridge")
.getDeclaredConstructor()
.newInstance()
.asInstanceOf[ScalaJSBridge]
scalaInstanceCache = Some((classloaderSig, bridge))
bridge
}
}
def link(toolsClasspath: Agg[Path],
sources: Agg[Path],
libraries: Agg[Path],
dest: File,
main: Option[String],
fullOpt: Boolean,
moduleKind: ModuleKind): Unit = {
bridge(toolsClasspath).link(
sources.items.map(_.toIO).toArray,
libraries.items.map(_.toIO).toArray,
dest,
main.orNull,
fullOpt,
moduleKind
)
}
def run(toolsClasspath: Agg[Path], config: NodeJSConfig, linkedFile: File): Unit = {
bridge(toolsClasspath).run(config, linkedFile)
}
def getFramework(toolsClasspath: Agg[Path],
config: NodeJSConfig,
frameworkName: String,
linkedFile: File): sbt.testing.Framework = {
bridge(toolsClasspath).getFramework(config, frameworkName, linkedFile)
}
}
trait ScalaJSBridge {
def link(sources: Array[File],
libraries: Array[File],
dest: File,
main: String,
fullOpt: Boolean,
moduleKind: ModuleKind): Unit
def run(config: NodeJSConfig, linkedFile: File): Unit
def getFramework(config: NodeJSConfig,
frameworkName: String,
linkedFile: File): sbt.testing.Framework
}
object ScalaJSBridge extends mill.define.ExternalModule {
def scalaJSBridge = T.worker { new ScalaJSWorker() }
lazy val millDiscover = Discover[this.type]
}
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