allow to modify rendering internals from the outside

Author: mpollmeier

compiler/src/dotty/tools/repl/Rendering.scala

@@ -28,10 +28,10 @@ private[repl] class Rendering(parentClassLoader: Option[ClassLoader] = None):
 
   import Rendering._
 
-  private var myClassLoader: AbstractFileClassLoader = _
+  var myClassLoader: AbstractFileClassLoader = _
 
   /** (value, maxElements, maxCharacters) => String */
-  private var myReplStringOf: (Object, Int, Int) => String = _
+  var myReplStringOf: (Object, Int, Int) => String = _
 
   /** Class loader used to load compiled code */
   private[repl] def classLoader()(using Context) =

compiler/src/dotty/tools/repl/ReplDriver.scala

@@ -118,7 +118,7 @@ class ReplDriver(settings: Array[String],
   private var rootCtx: Context = _
   private var shouldStart: Boolean = _
   private var compiler: ReplCompiler = _
-  private var rendering: Rendering = _
+  protected var rendering: Rendering = _
 
   // initialize the REPL session as part of the constructor so that once `run`
   // is called, we're in business