Add dotty repl & type stealer

Dotty requires a mangled bootclasspath to start.
It means that `console` mode of sbt doesn't work for us.
At least I wasn't able to make sbt fork in console,
so instead I've added a Scala-repl into dotty itself :-)

It would be good to make it use dotty one day when we have
a backend :-)

1 files changed, 25 insertions, 0 deletions

diff --git a/test/test/DottyRepl.scala b/test/test/DottyRepl.scala
new file mode 100644
index 000000000..74f6ee248
--- /dev/null
+++ b/test/test/DottyRepl.scala
@@ -0,0 +1,25 @@
+package test
+import scala.tools.nsc.interpreter._
+import scala.tools.nsc.Settings
+
+/**
+ * Dotty requires a mangled bootclasspath to start. It means that `console` mode of sbt doesn't work for us.
+ * At least I(Dmitry) wasn't able to make sbt fork in console
+ */
+object DottyRepl {
+  def main(args: Array[String]): Unit = {
+    def repl = new ILoop {}
+
+    val settings = new Settings
+    settings.Yreplsync.value = true
+
+
+    //use when launching normally outside SBT
+    settings.usejavacp.value = true
+
+    //an alternative to 'usejavacp' setting, when launching from within SBT
+    //settings.embeddedDefaults[Repl.type]
+
+    repl.process(settings)
+  }
+}