Emit local module like lazy val

The motivation is to use the new fine-grained lock scoping that
local lazies have since #5294.

Fixes scala/scala-dev#235

Co-Authored-By: Jason Zaugg <jzaugg@gmail.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/test/files/run/SD-235.scala b/test/files/run/SD-235.scala
new file mode 100644
index 0000000000..eb79c6fe71
--- /dev/null
+++ b/test/files/run/SD-235.scala
@@ -0,0 +1,39 @@
+class C {
+  var ORef: Object = null
+  def test = {
+    object O {
+      assert(!Thread.holdsLock(C.this))
+      assert(Thread.holdsLock(ORef))
+    }
+    val captor = new { def oh = O }
+    val refField = captor.getClass.getDeclaredFields.last
+    refField.setAccessible(true)
+    assert(refField.getType.toString.contains("LazyRef"), refField)
+    ORef = refField.get(captor)
+    O
+  }
+}
+
+class D {
+  var ORef: Object = null
+  def test = {
+    lazy val O = {
+      assert(!Thread.holdsLock(D.this))
+      assert(Thread.holdsLock(ORef))
+      "O"
+    }
+    val captor = new { def oh = O }
+    val refField = captor.getClass.getDeclaredFields.last
+    refField.setAccessible(true)
+    assert(refField.getType.toString.contains("LazyRef"), refField)
+    ORef = refField.get(captor)
+    O
+  }
+}
+
+object Test {
+  def main(args: Array[String]): Unit = {
+    new C().test
+    new D().test
+  }
+}