Merge pull request #4609 from retronym/topic/indylambda-test

[indylambda] Improve test coverage

1 files changed, 15 insertions, 0 deletions

diff --git a/test/files/run/indylambda-specialization.scala b/test/files/run/indylambda-specialization.scala
new file mode 100644
index 0000000000..2c66073e90
--- /dev/null
+++ b/test/files/run/indylambda-specialization.scala
@@ -0,0 +1,15 @@
+object Test {
+  def assertApply(expected: Boolean) = {
+    val frames = Thread.currentThread.getStackTrace.takeWhile(_.getMethodName != "main")
+    val usesObjectApply = frames.exists(_.getMethodName == "apply")
+    assert(expected == usesObjectApply, frames.mkString("\n"))
+  }
+  def assertSpecialized() = assertApply(false)
+  def assertUnspecialized() = assertApply(true)
+  def main(args: Array[String]): Unit = {
+    ((i: String)      => {assertUnspecialized(); i}).apply("")
+    (()               => {assertSpecialized(); 0}).apply()
+    ((i: Int)         => {assertSpecialized(); i}).apply(0)
+    ((i: Int, j: Int) => {assertSpecialized(); i + j}).apply(0, 0)
+  }
+}