diff options
Diffstat (limited to 'test/files/run/t7046-1')
-rw-r--r-- | test/files/run/t7046-1/Macros_1.scala | 15 | ||||
-rw-r--r-- | test/files/run/t7046-1/Test_2.scala | 23 |
2 files changed, 38 insertions, 0 deletions
diff --git a/test/files/run/t7046-1/Macros_1.scala b/test/files/run/t7046-1/Macros_1.scala new file mode 100644 index 0000000000..2a5bf82f62 --- /dev/null +++ b/test/files/run/t7046-1/Macros_1.scala @@ -0,0 +1,15 @@ +import scala.language.experimental.macros +import scala.reflect.macros.blackbox.Context + +object Macros { + def impl[T](c: Context)(implicit ttag: c.WeakTypeTag[T]): c.Expr[List[String]] = { + import c.universe._; + val ttpe = ttag.tpe + val tsym = ttpe.typeSymbol.asClass + val subclasses = tsym.knownDirectSubclasses.toList.map(_.name.toString) + + c.Expr[List[String]](q"$subclasses") + } + + def knownDirectSubclasses[T]: List[String] = macro impl[T] +} diff --git a/test/files/run/t7046-1/Test_2.scala b/test/files/run/t7046-1/Test_2.scala new file mode 100644 index 0000000000..28459fde72 --- /dev/null +++ b/test/files/run/t7046-1/Test_2.scala @@ -0,0 +1,23 @@ +object Test extends App { + val subs = Macros.knownDirectSubclasses[Foo] + assert(subs == List("Wibble", "Wobble", "Bar", "Baz")) +} + +sealed trait Foo +object Foo { + trait Wibble extends Foo + case object Wobble extends Foo +} + +trait Bar extends Foo + +object Blah { + type Quux = Foo +} + +import Blah._ + +trait Baz extends Quux + +class Boz[T](t: T) +class Unrelated extends Boz(Test.subs) |