From a3ea46c3da6596013d8e6ea8b84839c59e92e781 Mon Sep 17 00:00:00 2001
From: Jason Zaugg <jzaugg@gmail.com>
Date: Sat, 24 Nov 2012 09:49:48 +0100
Subject: Refine tracing of ANF.

 - show the AST on one line.
---
 src/main/scala/scala/async/AnfTransform.scala | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/main/scala/scala/async/AnfTransform.scala b/src/main/scala/scala/async/AnfTransform.scala
index 7d19da2..b45c5bb 100644
--- a/src/main/scala/scala/async/AnfTransform.scala
+++ b/src/main/scala/scala/async/AnfTransform.scala
@@ -76,10 +76,11 @@ private[async] final case class AnfTransform[C <: Context](override val c: C) ex
     def indentString = "  " * indent
     def apply[T](prefix: String, args: Any)(t: => T): T = {
       indent += 1
+      def oneLine(s: Any) = s.toString.replaceAll("""\n""", "\\\\n").take(127)
       try {
-        AsyncUtils.trace(s"${indentString}$prefix($args)")
+        AsyncUtils.trace(s"${indentString}$prefix(${oneLine(args)})")
         val result = t
-        AsyncUtils.trace(s"${indentString}= $result")
+        AsyncUtils.trace(s"${indentString}= ${oneLine(result)}")
         result
       } finally {
         indent -= 1
-- 
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