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Fix #13495: Break completion cycles #13596

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merged 1 commit into from Sep 28, 2021
Merged

Fix #13495: Break completion cycles #13596

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4 changes: 2 additions & 2 deletions compiler/src/dotty/tools/dotc/core/SymDenotations.scala
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Expand Up @@ -1605,10 +1605,10 @@ object SymDenotations {
// children that are defined in the same file as their parents.
def maybeChild(sym: Symbol) =
(sym.isClass && !this.is(JavaDefined) || sym.originDenotation.is(EnumVal))
&& !owner.is(Package)
&& (!owner.is(Package)
|| sym.originDenotation.infoOrCompleter.match
case _: SymbolLoaders.SecondCompleter => sym.associatedFile == this.symbol.associatedFile
case _ => false
case _ => false)

if owner.isClass then
for c <- owner.info.decls.toList if maybeChild(c) do
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20 changes: 20 additions & 0 deletions tests/pos/13495.scala
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@@ -0,0 +1,20 @@
import scala.annotation.showAsInfix

object Test {
trait Component
sealed trait Deleted extends Component

type Deletable[L <: CList] <: CList = L match {
case h &: t => (h | Deleted) &: Deletable[t]
case CNil => CNil
}

sealed trait CList
sealed trait CNil extends CList
@showAsInfix case class &:[+C <: Component, +L <: CList](h: C, t: L) extends CList

case class A(x: Int, y: Int) extends Component
case class B(x: Int, y: Int) extends Component

val x: Deletable[A &: B &: CNil] = ???
}