Add $deserializeLambda$ when inlining an indyLambda into a class

Fixes https://github.com/scala/scala-dev/issues/39

When inlining an indyLambda closure instantiation into a class, and
the closure type is serializable, make sure that the target class has
the synthetic `$deserializeLambda$` method.

1 files changed, 20 insertions, 0 deletions

diff --git a/test/files/run/inlineAddDeserializeLambda.scala b/test/files/run/inlineAddDeserializeLambda.scala
new file mode 100644
index 0000000000..a6bafd0f49
--- /dev/null
+++ b/test/files/run/inlineAddDeserializeLambda.scala
@@ -0,0 +1,20 @@
+class C { @inline final def f: Int => Int = (x: Int) => x + 1 }
+
+object Test extends App {
+  import java.io._
+
+  def serialize(obj: AnyRef): Array[Byte] = {
+    val buffer = new ByteArrayOutputStream
+    val out = new ObjectOutputStream(buffer)
+    out.writeObject(obj)
+    buffer.toByteArray
+  }
+  def deserialize(a: Array[Byte]): AnyRef = {
+    val in = new ObjectInputStream(new ByteArrayInputStream(a))
+    in.readObject
+  }
+
+  def serializeDeserialize[T <: AnyRef](obj: T) = deserialize(serialize(obj)).asInstanceOf[T]
+
+  assert(serializeDeserialize((new C).f).isInstanceOf[Function1[_, _]])
+}