From 7253b5e7a62e0e255a3fece591b7b5991a24d3a9 Mon Sep 17 00:00:00 2001
From: Jason Zaugg <jzaugg@gmail.com>
Date: Fri, 23 Nov 2012 23:22:30 +0100
Subject: Enable debug logging with a system property.

---
 src/main/scala/scala/async/AsyncUtils.scala        | 2 +-
 src/test/scala/scala/async/TreeInterrogation.scala | 9 +++++----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/main/scala/scala/async/AsyncUtils.scala b/src/main/scala/scala/async/AsyncUtils.scala
index 77c155f..b2f6747 100644
--- a/src/main/scala/scala/async/AsyncUtils.scala
+++ b/src/main/scala/scala/async/AsyncUtils.scala
@@ -8,7 +8,7 @@ package scala.async
  */
 object AsyncUtils {
 
-  private val verbose = false
+  private val verbose = false || sys.props.getOrElse("scala.async.debug", "false").equalsIgnoreCase("true")
   
   private[async] def vprintln(s: => Any): Unit = if (verbose)
     println("[async] "+s)
diff --git a/src/test/scala/scala/async/TreeInterrogation.scala b/src/test/scala/scala/async/TreeInterrogation.scala
index 9ac0dce..1212045 100644
--- a/src/test/scala/scala/async/TreeInterrogation.scala
+++ b/src/test/scala/scala/async/TreeInterrogation.scala
@@ -36,8 +36,9 @@ class TreeInterrogation {
   }
 
 
-  @Test
+  //@Test
   def sandbox() {
+    sys.props("scala.async.debug") = "true"
     val cm = reflect.runtime.currentMirror
     val tb = mkToolbox("-cp target/scala-2.10/classes")
     val tree = tb.parse(
@@ -55,9 +56,9 @@ class TreeInterrogation {
         |   println("after while")
         |   y
         | }""".stripMargin)
-    //println(tree)
+    println(tree)
     val tree1 = tb.typeCheck(tree.duplicate)
-    //println(cm.universe.show(tree1))
-    //println(tb.eval(tree))
+    println(cm.universe.show(tree1))
+    println(tb.eval(tree))
   }
 }
-- 
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