diff options
| -rw-r--r-- | src/dotty/tools/dotc/typer/Typer.scala | 7 | ||||
| -rw-r--r-- | tests/pos/i815.scala | 11 |
2 files changed, 17 insertions, 1 deletions
diff --git a/src/dotty/tools/dotc/typer/Typer.scala b/src/dotty/tools/dotc/typer/Typer.scala index 78cefb2d4..6510ba35b 100644 --- a/src/dotty/tools/dotc/typer/Typer.scala +++ b/src/dotty/tools/dotc/typer/Typer.scala @@ -345,7 +345,12 @@ class Typer extends Namer with TypeAssigner with Applications with Implicits wit val clsDef = TypeDef(x, templ).withFlags(Final) typed(cpy.Block(tree)(clsDef :: Nil, New(Ident(x), Nil)), pt) case _ => - val tpt1 = typedType(tree.tpt) + var tpt1 = typedType(tree.tpt) + if (tpt1.tpe.isHK) { + val deAliased = tpt1.tpe.dealias.EtaReduce + if (deAliased.exists && deAliased.ne(tpt1.tpe)) + tpt1 = tpt1.withType(deAliased) + } checkClassTypeWithStablePrefix(tpt1.tpe, tpt1.pos, traitReq = false) assignType(cpy.New(tree)(tpt1), tpt1) // todo in a later phase: checkInstantiatable(cls, tpt1.pos) diff --git a/tests/pos/i815.scala b/tests/pos/i815.scala new file mode 100644 index 000000000..bc0083ee2 --- /dev/null +++ b/tests/pos/i815.scala @@ -0,0 +1,11 @@ +import scala.collection.immutable.:: +class C[T](x: T) +object A { + def main(args: Array[String]): Unit = { + val x = new C("A") + val y = new ::(args, Nil) + val z = ::(args, Nil) + println(y) + println(z) + } +} |