From 006e2f2aadf5d15ff1b9b32f1b7e96960b778933 Mon Sep 17 00:00:00 2001
From: Jason Zaugg <jzaugg@gmail.com>
Date: Tue, 10 Dec 2013 00:45:48 +0100
Subject: SI-7912 Be defensive calling `toString` in `MatchError#getMessage`

Otherwise, objects with exception-throwing `toString` lead to a
cascading error far removed from the originally failed match.
---
 test/files/run/t7912.scala | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 test/files/run/t7912.scala

(limited to 'test/files')

diff --git a/test/files/run/t7912.scala b/test/files/run/t7912.scala
new file mode 100644
index 0000000000..3d603e0e97
--- /dev/null
+++ b/test/files/run/t7912.scala
@@ -0,0 +1,16 @@
+case object A { override def toString = ??? }
+
+object Test {
+  def foo: Int = (A: Any) match {
+    case 0 => 0
+  }
+  def main(args: Array[String]): Unit = {
+    try {
+      foo
+      sys.error("no exception")
+    } catch {
+      case me: MatchError => assert(me.getMessage == "an instance of class A$", me.getMessage)
+      case ex: Throwable => sys.error("not a match error: " + ex.getClass)
+    }
+  }
+}
-- 
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