Reflection toolboxes now respect settings that ...

Reflection toolboxes now respect settings that are provided to them.

Before the fix CompilerCommand lacked the (args, settings, errorFn)
ctor. I added it and provided means to augment passed settings with
custom errorFn.

Closes SI-5239. Review by odersky.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/compiler/scala/tools/nsc/Settings.scala b/src/compiler/scala/tools/nsc/Settings.scala
index ca99ddf27a..d57d5546fa 100644
--- a/src/compiler/scala/tools/nsc/Settings.scala
+++ b/src/compiler/scala/tools/nsc/Settings.scala
@@ -11,4 +11,10 @@ import settings.MutableSettings
  */
 class Settings(errorFn: String => Unit) extends MutableSettings(errorFn) {
   def this() = this(Console.println)
+
+  override def withErrorFn(errorFn: String => Unit): Settings = {
+    val settings = new Settings(errorFn)
+    copyInto(settings)
+    settings
+  }
 }