import scala.tools.nsc.reporters._ import scala.tools.nsc.Settings import reflect.runtime.Mirror.ToolBox object Test extends App { val code = scala.reflect.Code.lift{ class C { class D { val x = 2 } } val outer = new C() val inner = new outer.D() println(inner.x) }; val reporter = new ConsoleReporter(new Settings) val toolbox = new ToolBox(reporter) toolbox.runExpr(code.tree) }