From 0afd6d1b192900f2a0cda3a8fa3d8498ded91d5f Mon Sep 17 00:00:00 2001
From: Paul Phillips <paulp@improving.org>
Date: Thu, 6 Oct 2011 10:00:13 +0000
Subject: Closing soundness hole in variance checking.

See SI-5060.  Review by odersky.
---
 test/files/neg/t5060.check |  7 +++++++
 test/files/neg/t5060.scala | 19 +++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 test/files/neg/t5060.check
 create mode 100644 test/files/neg/t5060.scala

(limited to 'test/files')

diff --git a/test/files/neg/t5060.check b/test/files/neg/t5060.check
new file mode 100644
index 0000000000..ab860c9d5b
--- /dev/null
+++ b/test/files/neg/t5060.check
@@ -0,0 +1,7 @@
+t5060.scala:2: error: covariant type T occurs in contravariant position in type => Object with ScalaObject{def contains(x: T): Unit} of value foo0
+  val foo0 = {
+      ^
+t5060.scala:6: error: covariant type T occurs in contravariant position in type => Object with ScalaObject{def contains(x: T): Unit} of method foo1
+  def foo1 = {
+      ^
+two errors found
diff --git a/test/files/neg/t5060.scala b/test/files/neg/t5060.scala
new file mode 100644
index 0000000000..4d934a9a16
--- /dev/null
+++ b/test/files/neg/t5060.scala
@@ -0,0 +1,19 @@
+class A[+T] {
+  val foo0 = {
+    class AsVariantAsIWantToBe { def contains(x: T) = () }
+    new AsVariantAsIWantToBe
+  }
+  def foo1 = {
+    class VarianceIsTheSpiceOfTypes { def contains(x: T) = () }
+    new VarianceIsTheSpiceOfTypes
+  }
+}
+
+object Test {
+  def main(args: Array[String]): Unit = {
+    val xs: A[String] = new A[String]
+    println(xs.foo0 contains "abc")
+    println((xs: A[Any]).foo0 contains 5)
+    // java.lang.NoSuchMethodException: A$AsVariantAsIWantToBe$1.contains(java.lang.String)
+  }
+}
-- 
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