Merge pull request #3989 from retronym/ticket/8852

SI-8852 Support joint compilation of Java interfaces w. statics

1 files changed, 34 insertions, 0 deletions

diff --git a/test/files/run/t8852a.scala b/test/files/run/t8852a.scala
new file mode 100644
index 0000000000..cbff8ab75b
--- /dev/null
+++ b/test/files/run/t8852a.scala
@@ -0,0 +1,34 @@
+import scala.tools.partest._
+
+// Test that static methods in Java interfaces (new in Java 8)
+// are callable from jointly compiler Scala code.
+object Test extends CompilerTest {
+  import global._
+
+  override lazy val units: List[CompilationUnit] = {
+    // This test itself does not depend on JDK8.
+    javaCompilationUnits(global)(staticMethodInInterface) ++
+    compilationUnits(global)(scalaClient)
+  }
+
+  private def staticMethodInInterface = """
+public interface Interface {
+  public static int staticMethod() {
+    return 42;
+  }
+}
+
+  """
+
+  private def scalaClient = """
+object Test {
+  val x: Int = Interface.staticMethod()
+}
+
+class C extends Interface // expect no errors about unimplemented members.
+
+  """
+
+  // We're only checking we can compile it.
+  def check(source: String, unit: global.CompilationUnit): Unit = ()
+}