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author | Miles Sabin <miles@milessabin.com> | 2016-08-10 09:30:49 +0100 |
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committer | Miles Sabin <miles@milessabin.com> | 2016-08-15 18:32:45 +0100 |
commit | d171b2cc16cc129e0f3aa03c3df9b2fb86208aa6 (patch) | |
tree | d95c542dddf2ae9e8c12843cd1b6478a7e5ad2c6 /test/files/run/t7046-2 | |
parent | 81a67eeacc7d2622ee364a21203b227142e2043e (diff) | |
download | scala-d171b2cc16cc129e0f3aa03c3df9b2fb86208aa6.tar.gz scala-d171b2cc16cc129e0f3aa03c3df9b2fb86208aa6.tar.bz2 scala-d171b2cc16cc129e0f3aa03c3df9b2fb86208aa6.zip |
Partial fix for SI-7046
Diffstat (limited to 'test/files/run/t7046-2')
-rw-r--r-- | test/files/run/t7046-2/Macros_1.scala | 15 | ||||
-rw-r--r-- | test/files/run/t7046-2/Test_2.scala | 14 |
2 files changed, 29 insertions, 0 deletions
diff --git a/test/files/run/t7046-2/Macros_1.scala b/test/files/run/t7046-2/Macros_1.scala new file mode 100644 index 0000000000..2a5bf82f62 --- /dev/null +++ b/test/files/run/t7046-2/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/t7046-2/Test_2.scala b/test/files/run/t7046-2/Test_2.scala new file mode 100644 index 0000000000..79407f522f --- /dev/null +++ b/test/files/run/t7046-2/Test_2.scala @@ -0,0 +1,14 @@ +object Test extends App { + def nested: Unit = { + sealed trait Foo + object Foo { + trait Bar extends Foo + trait Baz extends Foo + } + + val subs = Macros.knownDirectSubclasses[Foo] + assert(subs == List("Bar", "Baz")) + } + + nested +} |