diff options
| -rw-r--r-- | src/dotty/tools/dotc/typer/Typer.scala | 10 | ||||
| -rw-r--r-- | tests/neg/i1643.scala | 19 |
2 files changed, 28 insertions, 1 deletions
diff --git a/src/dotty/tools/dotc/typer/Typer.scala b/src/dotty/tools/dotc/typer/Typer.scala index 899b857ae..95f0c5614 100644 --- a/src/dotty/tools/dotc/typer/Typer.scala +++ b/src/dotty/tools/dotc/typer/Typer.scala @@ -241,7 +241,7 @@ class Typer extends Namer with TypeAssigner with Applications with Implicits wit /** Would import of kind `prec` be not shadowed by a nested higher-precedence definition? */ def isPossibleImport(prec: Int)(implicit ctx: Context) = - !noImports && + !noImports && (prevPrec < prec || prevPrec == prec && (prevCtx.scope eq ctx.scope)) @tailrec def loop(implicit ctx: Context): Type = { @@ -446,6 +446,14 @@ class Typer extends Namer with TypeAssigner with Applications with Implicits wit case _ => } checkClassType(tpt1.tpe, tpt1.pos, traitReq = false, stablePrefixReq = true) + + tpt1 match { + case AppliedTypeTree(_, targs) => + for (targ @ TypeBoundsTree(_, _) <- targs) + ctx.error("type argument must be fully defined", targ.pos) + case _ => + } + assignType(cpy.New(tree)(tpt1), tpt1) // todo in a later phase: checkInstantiatable(cls, tpt1.pos) } diff --git a/tests/neg/i1643.scala b/tests/neg/i1643.scala new file mode 100644 index 000000000..d836a4255 --- /dev/null +++ b/tests/neg/i1643.scala @@ -0,0 +1,19 @@ +trait T extends Array { + def t1(as: String*): Array[String] = { varargs1(as: _*) } // error + def t2(as: String*): Array[String] = { super.varargs1(as: _*) } // error +} +class C extends Base_1 { // error + def c1(as: String*): Array[String] = { varargs1(as: _*) } // error + def c2(as: String*): Array[String] = { super.varargs1(as: _*) } // error +} +object Test extends App { + val t = new T {} // error + println(t.t1("a", "b").mkString(",")) + println(t.t2("a", "b").mkString(",")) + val c = new C {} + println(c.c1("a", "b").mkString(",")) + println(c.c2("a", "b").mkString(",")) + + class CC[T] + val x = new CC[_] // error +} |