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Assertion failed at dotty.tools.dotc.transform.Erasure$Typer.typedSelect(Erasure.scala:665) #8921

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#13664
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Assertion failed at dotty.tools.dotc.transform.Erasure$Typer.typedSelect(Erasure.scala:665)#8921
#13664
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smarter
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itype:bugitype:crash
Milestone
3.1.1
@sergey-scherbina

Description

@sergey-scherbina
sergey-scherbina
opened on May 8, 2020

addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.4.1")

scalaVersion := "0.24.0-RC1"

Minimized code

type R[F[_], A] =[B] => (A => F[B]) => F[B]

type M[F[_]] =[A, B] => (A => F[B]) => F[A] => F[B]

def mr[F[_]]: M[[A] =>> R[F, A]] =
   [A, B] => (f: A => R[F, B]) => (m: R[F, A]) =>
      [C] => (k: B => F[C]) => m(a => f(a)(k))

Output (click arrow to expand)

exception while typing f.apply(a).apply of class class dotty.tools.dotc.ast.Trees$Select # 1480
exception while typing f.apply(a).apply[C] of class class dotty.tools.dotc.ast.Trees$TypeApply # 1671
exception while typing f.apply(a).apply[C](k) of class class dotty.tools.dotc.ast.Trees$Apply # 1672
exception while typing def $anonfun(a: A): F[C] = f.apply(a).apply[C](k) of class class dotty.tools.dotc.ast.Trees$DefDef # 1673
exception while typing {
  def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
  closure($anonfun)
} of class class dotty.tools.dotc.ast.Trees$Block # 1674
exception while typing m.apply[C](
  {
    def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
    closure($anonfun)
  }
) of class class dotty.tools.dotc.ast.Trees$Apply # 1675
exception while typing def apply[C](k: B => F[C]): F[C] = 
  m.apply[C](
    {
      def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
      closure($anonfun)
    }
  ) of class class dotty.tools.dotc.ast.Trees$DefDef # 1676
exception while typing final class $anon() extends Object(), PolyFunction {
  def apply[C](k: B => F[C]): F[C] = 
    m.apply[C](
      {
        def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
        closure($anonfun)
      }
    )
} of class class dotty.tools.dotc.ast.Trees$TypeDef # 1678
exception while typing {
  final class $anon() extends Object(), PolyFunction {
    def apply[C](k: B => F[C]): F[C] = 
      m.apply[C](
        {
          def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
          closure($anonfun)
        }
      )
  }
  new Object with PolyFunction {...}():
    PolyFunction{apply: [C](k: B => F[C]): F[C]}
} of class class dotty.tools.dotc.ast.Trees$Block # 1679
exception while typing def $anonfun(m: R[F, A]): PolyFunction{apply: [C](k: B => F[C]): F[C]} = 
  {
    final class $anon() extends Object(), PolyFunction {
      def apply[C](k: B => F[C]): F[C] = 
        m.apply[C](
          {
            def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
            closure($anonfun)
          }
        )
    }
    new Object with PolyFunction {...}():
      PolyFunction{apply: [C](k: B => F[C]): F[C]}
  } of class class dotty.tools.dotc.ast.Trees$DefDef # 1680
exception while typing {
  def $anonfun(m: R[F, A]): PolyFunction{apply: [C](k: B => F[C]): F[C]} = 
    {
      final class $anon() extends Object(), PolyFunction {
        def apply[C](k: B => F[C]): F[C] = 
          m.apply[C](
            {
              def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
              closure($anonfun)
            }
          )
      }
      new Object with PolyFunction {...}():
        PolyFunction{apply: [C](k: B => F[C]): F[C]}
    }
  closure($anonfun)
} of class class dotty.tools.dotc.ast.Trees$Block # 1682
exception while typing def apply[A, B](f: A => R[F, B]): 
  R[F, A] => PolyFunction{apply: [C](k: B => F[C]): F[C]}
 = 
  {
    def $anonfun(m: R[F, A]): PolyFunction{apply: [C](k: B => F[C]): F[C]} = 
      {
        final class $anon() extends Object(), PolyFunction {
          def apply[C](k: B => F[C]): F[C] = 
            m.apply[C](
              {
                def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
                closure($anonfun)
              }
            )
        }
        new Object with PolyFunction {...}():
          PolyFunction{apply: [C](k: B => F[C]): F[C]}
      }
    closure($anonfun)
  } of class class dotty.tools.dotc.ast.Trees$DefDef # 1683
exception while typing final class $anon() extends Object(), PolyFunction {
  def apply[A, B](f: A => R[F, B]): 
    R[F, A] => PolyFunction{apply: [C](k: B => F[C]): F[C]}
   = 
    {
      def $anonfun(m: R[F, A]): PolyFunction{apply: [C](k: B => F[C]): F[C]} = 
        {
          final class $anon() extends Object(), PolyFunction {
            def apply[C](k: B => F[C]): F[C] = 
              m.apply[C](
                {
                  def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
                  closure($anonfun)
                }
              )
          }
          new Object with PolyFunction {...}():
            PolyFunction{apply: [C](k: B => F[C]): F[C]}
        }
      closure($anonfun)
    }
} of class class dotty.tools.dotc.ast.Trees$TypeDef # 1685
exception while typing {
  final class $anon() extends Object(), PolyFunction {
    def apply[A, B](f: A => R[F, B]): 
      R[F, A] => PolyFunction{apply: [C](k: B => F[C]): F[C]}
     = 
      {
        def $anonfun(m: R[F, A]): PolyFunction{apply: [C](k: B => F[C]): F[C]}
           = 
        {
          final class $anon() extends Object(), PolyFunction {
            def apply[C](k: B => F[C]): F[C] = 
              m.apply[C](
                {
                  def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
                  closure($anonfun)
                }
              )
          }
          new Object with PolyFunction {...}():
            PolyFunction{apply: [C](k: B => F[C]): F[C]}
        }
        closure($anonfun)
      }
  }
  new Object with PolyFunction {...}():
    
      PolyFunction{
        apply: 
          [A, B]
            (f: A => R[F, B]): R[F, A] => 
              PolyFunction{apply: [C](k: B => F[C]): F[C]}
      }
    
} of class class dotty.tools.dotc.ast.Trees$Block # 1686
exception while typing def mr[F[_$3]]: M[[A] =>> R[F, A]] = 
  {
    final class $anon() extends Object(), PolyFunction {
      def apply[A, B](f: A => R[F, B]): 
        R[F, A] => PolyFunction{apply: [C](k: B => F[C]): F[C]}
       = 
        {
          def $anonfun(m: R[F, A]): PolyFunction{apply: [C](k: B => F[C]): F[C]}
             = 
          {
            final class $anon() extends Object(), PolyFunction {
              def apply[C](k: B => F[C]): F[C] = 
                m.apply[C](
                  {
                    def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
                    closure($anonfun)
                  }
                )
            }
            new Object with PolyFunction {...}():
              PolyFunction{apply: [C](k: B => F[C]): F[C]}
          }
          closure($anonfun)
        }
    }
    new Object with PolyFunction {...}():
      
        PolyFunction{
          apply: 
            [A, B]
              (f: A => R[F, B]): R[F, A] => 
                PolyFunction{apply: [C](k: B => F[C]): F[C]}
        }
      
  } of class class dotty.tools.dotc.ast.Trees$DefDef # 1687
exception while typing @scala.annotation.internal.SourceFile(
  "/Users/sshcherbyna/sandbox/dotty/dotty-effects/src/test/scala/Crash.scala"
) final module class Crash$package$() extends Object(), Serializable {
  private def writeReplace(): AnyRef = 
    new scala.runtime.ModuleSerializationProxy(classOf[Crash$package.type])
  type R = [F[_$1], A] =>> PolyFunction{apply: [B](x$1: A => F[B]): F[B]}
  type M = 
    [F[_$2]] =>> PolyFunction{apply: [A, B](x$1: A => F[B]): F[A] => F[B]}
  def mr[F[_$3]]: M[[A] =>> R[F, A]] = 
    {
      final class $anon() extends Object(), PolyFunction {
        def apply[A, B](f: A => R[F, B]): 
          R[F, A] => PolyFunction{apply: [C](k: B => F[C]): F[C]}
         = 
          {
            def $anonfun(m: R[F, A]): 
              PolyFunction{apply: [C](k: B => F[C]): F[C]}
             = 
              {
                final class $anon() extends Object(), PolyFunction {
                  def apply[C](k: B => F[C]): F[C] = 
                    m.apply[C](
                      {
                        def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
                        closure($anonfun)
                      }
                    )
                }
                new Object with PolyFunction {...}():
                  PolyFunction{apply: [C](k: B => F[C]): F[C]}
              }
            closure($anonfun)
          }
      }
      new Object with PolyFunction {...}():
        
          PolyFunction{
            apply: 
              [A, B]
                (f: A => R[F, B]): R[F, A] => 
                  PolyFunction{apply: [C](k: B => F[C]): F[C]}
          }
        
    }
} of class class dotty.tools.dotc.ast.Trees$TypeDef # 1689
exception while typing package <empty> {
  final lazy module val Crash$package: Crash$package$ = new Crash$package$()
  @scala.annotation.internal.SourceFile(
    "/Users/sshcherbyna/sandbox/dotty/dotty-effects/src/test/scala/Crash.scala"
  ) final module class Crash$package$() extends Object(), Serializable {
    private def writeReplace(): AnyRef = 
      new scala.runtime.ModuleSerializationProxy(classOf[Crash$package.type])
    type R = [F[_$1], A] =>> PolyFunction{apply: [B](x$1: A => F[B]): F[B]}
    type M = 
      [F[_$2]] =>> PolyFunction{apply: [A, B](x$1: A => F[B]): F[A] => F[B]}
    def mr[F[_$3]]: M[[A] =>> R[F, A]] = 
      {
        final class $anon() extends Object(), PolyFunction {
          def apply[A, B](f: A => R[F, B]): 
            R[F, A] => PolyFunction{apply: [C](k: B => F[C]): F[C]}
           = 
            {
              def $anonfun(m: R[F, A]): 
                PolyFunction{apply: [C](k: B => F[C]): F[C]}
               = 
                {
                  final class $anon() extends Object(), PolyFunction {
                    def apply[C](k: B => F[C]): F[C] = 
                      m.apply[C](
                        {
                          def $anonfun(a: A): F[C] = f.apply(a).apply[C](k)
                          closure($anonfun)
                        }
                      )
                  }
                  new Object with PolyFunction {...}():
                    PolyFunction{apply: [C](k: B => F[C]): F[C]}
                }
              closure($anonfun)
            }
        }
        new Object with PolyFunction {...}():
          
            PolyFunction{
              apply: 
                [A, B]
                  (f: A => R[F, B]): R[F, A] => 
                    PolyFunction{apply: [C](k: B => F[C]): F[C]}
            }
          
      }
  }
} of class class dotty.tools.dotc.ast.Trees$PackageDef # 1690

[error] java.lang.AssertionError: assertion failed:  <none>
[error] dotty.DottyPredef$.assertFail(DottyPredef.scala:17)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedSelect(Erasure.scala:665)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2315)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2403)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2566)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedTypeApply(Erasure.scala:729)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2363)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2404)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2566)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedApply(Erasure.scala:751)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2345)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2404)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2566)
[error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:1867)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedDefDef(Erasure.scala:866)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2322)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2403)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2477)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2522)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:953)
[error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:849)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:853)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2353)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2404)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2566)
[error] dotty.tools.dotc.transform.Erasure$Typer.$anonfun$4(Erasure.scala:765)
[error] dotty.tools.dotc.core.Decorators$ListDecorator$.zipWithConserve$extension(Decorators.scala:110)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedApply(Erasure.scala:765)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2345)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2404)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2566)
[error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:1867)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedDefDef(Erasure.scala:866)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2322)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2403)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2477)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2522)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:953)
[error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2003)
[error] dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2333)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2337)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2403)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2477)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2522)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:953)
[error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:849)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:853)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2353)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2404)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2566)
[error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:1867)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedDefDef(Erasure.scala:866)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2322)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2403)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2477)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2522)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:953)
[error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:849)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:853)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2353)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2404)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2566)
[error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:1867)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedDefDef(Erasure.scala:866)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2322)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2403)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2477)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2522)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:953)
[error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2003)
[error] dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2333)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2337)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2403)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2477)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2522)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:953)
[error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:849)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:853)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2353)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2404)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2566)
[error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:1867)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedDefDef(Erasure.scala:866)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2322)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2403)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2477)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2522)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:953)
[error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2003)
[error] dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2333)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2337)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2403)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2477)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2522)
[error] dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:953)
[error] dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:2129)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2376)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2404)
[error] dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:124)
[error] dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2443)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2452)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2455)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2566)
[error] dotty.tools.dotc.transform.Erasure.run(Erasure.scala:121)
[error] dotty.tools.dotc.core.Phases$Phase.runOn$$anonfun$1(Phases.scala:318)
[error] scala.collection.immutable.List.map(List.scala:246)
[error] dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:319)
[error] dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:165)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
[error] dotty.tools.dotc.Run.runPhases$5(Run.scala:175)
[error] dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:183)
[error] dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
[error] dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:64)
[error] dotty.tools.dotc.Run.compileUnits(Run.scala:190)
[error] dotty.tools.dotc.Run.compileSources(Run.scala:127)
[error] dotty.tools.dotc.Run.compile(Run.scala:110)
[error] dotty.tools.dotc.Driver.doCompile(Driver.scala:38)
[error] dotty.tools.dotc.Driver.process(Driver.scala:194)
[error] dotty.tools.dotc.Main.process(Main.scala)
[error] xsbt.CachedCompilerImpl.run(CachedCompilerImpl.java:69)
[error] xsbt.CompilerInterface.run(CompilerInterface.java:41)
[error] sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[error] sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[error] sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[error] java.lang.reflect.Method.invoke(Method.java:498)
[error] sbt.internal.inc.AnalyzingCompiler.call(AnalyzingCompiler.scala:248)
[error] sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:122)
[error] sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:95)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:91)
[error] scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
[error] sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:186)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3(MixedAnalyzingCompiler.scala:82)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3$adapted(MixedAnalyzingCompiler.scala:77)
[error] sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:215)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:77)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:146)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:343)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:343)
[error] sbt.internal.inc.Incremental$.doCompile(Incremental.scala:120)
[error] sbt.internal.inc.Incremental$.$anonfun$compile$4(Incremental.scala:100)
[error] sbt.internal.inc.IncrementalCommon.recompileClasses(IncrementalCommon.scala:180)
[error] sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:98)
[error] sbt.internal.inc.Incremental$.$anonfun$compile$3(Incremental.scala:102)
[error] sbt.internal.inc.Incremental$.manageClassfiles(Incremental.scala:155)
[error] sbt.internal.inc.Incremental$.compile(Incremental.scala:92)
[error] sbt.internal.inc.IncrementalCompile$.apply(Compile.scala:75)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:348)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:301)
[error] sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:168)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:248)
[error] sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:74)
[error] sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:1765)
[error] sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:1738)
[error] scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error] sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
[error] sbt.std.Transform$$anon$4.work(Transform.scala:67)
[error] sbt.Execute.$anonfun$submit$2(Execute.scala:281)
[error] sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:19)
[error] sbt.Execute.work(Execute.scala:290)
[error] sbt.Execute.$anonfun$submit$1(Execute.scala:281)
[error] sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:178)
[error] sbt.CompletionService$$anon$2.call(CompletionService.scala:37)
[error] java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[error] java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[error] java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[error] java.lang.Thread.run(Thread.java:748)
[error]            
[error] stack trace is suppressed; run last Test / compileIncremental for the full output
[error] (Test / compileIncremental) java.lang.AssertionError: assertion failed:  <none>

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