import scala.tools.nsc._ import scala.tools.partest.ReplTest object Test extends ReplTest { def code = """ import scala.language.experimental._, scala.reflect.macros.blackbox.Context object GrabContext { def lastContext = Option(System.getProperties.get("lastContext").asInstanceOf[reflect.macros.runtime.Context]) // System.properties lets you stash true globals (unlike statics which are classloader scoped) def impl(c: Context)() = { import c.universe._; System.getProperties.put("lastContext", c); c.Expr[Unit](q"()") } def grab(): Unit = macro impl } object Test { class C(implicit a: Any) { GrabContext.grab } } object Test { class C(implicit a: Any) { GrabContext.grab } } """ }