From b4f718a459490909e673e72bf6e3d0fec1901465 Mon Sep 17 00:00:00 2001
From: odersky <odersky@5e8d7ff9-d8ef-0310-90f0-a4852d11357a>
Date: Mon, 31 Oct 2011 14:56:56 +0000
Subject: [PATCH] Code to locate currently transformed unit in case of crashes.
 Review by extempore.

git-svn-id: http://lampsvn.epfl.ch/svn-repos/scala/scala/trunk@25914 5e8d7ff9-d8ef-0310-90f0-a4852d11357a
---
 src/compiler/scala/tools/nsc/ast/Trees.scala | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/compiler/scala/tools/nsc/ast/Trees.scala b/src/compiler/scala/tools/nsc/ast/Trees.scala
index b9f808c25..7c97b9f3d 100644
--- a/src/compiler/scala/tools/nsc/ast/Trees.scala
+++ b/src/compiler/scala/tools/nsc/ast/Trees.scala
@@ -201,7 +201,14 @@ trait Trees extends reflect.internal.Trees { self: Global =>
   }
   
   class Transformer extends super.Transformer {
-    def transformUnit(unit: CompilationUnit) { unit.body = transform(unit.body) }
+    def transformUnit(unit: CompilationUnit) { 
+      try unit.body = transform(unit.body)
+      catch {
+        case ex: Exception => 
+          println("unhandled exception while transforming "+unit)
+          throw ex
+      }
+    }
   }
   
   override protected def xtransform(transformer: super.Transformer, tree: Tree): Tree = tree match {