diff options
Diffstat (limited to 'tests/run/structuralNoSuchMethod.scala')
-rw-r--r-- | tests/run/structuralNoSuchMethod.scala | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tests/run/structuralNoSuchMethod.scala b/tests/run/structuralNoSuchMethod.scala new file mode 100644 index 000000000..3d33c9d8b --- /dev/null +++ b/tests/run/structuralNoSuchMethod.scala @@ -0,0 +1,23 @@ +import scala.reflect.Projector.reflectiveProjector + +/** Demonstrates limitation of structural method dispatch (in Scala 2.x and dotty). + * The method must be defined at exactly the argument types given in the structural type; + * Generic instantiation is not possible. + */ +object Test { + type T = { def f(x: String, y: String): String } + + class C[X] { + def f(x: X, y: String): String = "f1" + } + + val x: T = new C[String] + + def main(args: Array[String]) = + try println(x.f("", "")) // throws NoSuchMethodException + catch { + case ex: NoSuchMethodException => + println("no such method") + } + +} |