Inline case class owner not found in liftedOwner map

[bishabosha]

minimized code

sealed trait Foo[T] {
  def foo(s: Foo[T]): Nothing
}

inline def species[T](t: T) = {
  case class FooT(x: T) extends Foo[T] {
    def foo(s: Foo[T]) = s match {
      case FooT(x) => ???
    }
  }
  FooT(t)
}

val foo = species(0)

Stack trace

[error] ## Exception when compiling 1 source to /Users/jamie/workspace/test-dotty/target/scala-0.17/classes
[error] key not found: class FooT
[error] scala.collection.MapLike.default(MapLike.scala:235)
[error] scala.collection.MapLike.default$(MapLike.scala:234)
[error] scala.collection.AbstractMap.default(Map.scala:63)
[error] scala.collection.MapLike.apply(MapLike.scala:144)
[error] scala.collection.MapLike.apply$(MapLike.scala:143)
[error] scala.collection.AbstractMap.apply(Map.scala:63)
[error] dotty.tools.dotc.transform.LambdaLift$Lifter.computeLiftedOwners$$anonfun$2$$anonfun$1(LambdaLift.scala:275)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] scala.collection.mutable.RedBlackTree$.foreachNodeKeyNonNull(RedBlackTree.scala:454)
[error] scala.collection.mutable.RedBlackTree$.foreachKey(RedBlackTree.scala:450)
[error] scala.collection.mutable.TreeSet.foreach(TreeSet.scala:107)
[error] dotty.tools.dotc.transform.LambdaLift$Lifter.computeLiftedOwners$$anonfun$1(LambdaLift.scala:284)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] scala.collection.Iterator.foreach(Iterator.scala:941)
[error] scala.collection.Iterator.foreach$(Iterator.scala:941)
[error] scala.collection.AbstractIterator.foreach(Iterator.scala:1429)
[error] scala.collection.MapLike$DefaultKeySet.foreach(MapLike.scala:181)
[error] dotty.tools.dotc.transform.LambdaLift$Lifter.computeLiftedOwners(LambdaLift.scala:284)
[error] dotty.tools.dotc.transform.LambdaLift$Lifter.$init$$$anonfun$2(LambdaLift.scala:364)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] dotty.tools.dotc.core.Phases.atPhase$$anonfun$1(Phases.scala:35)
[error] dotty.tools.dotc.core.Periods.atPhase(Periods.scala:25)
[error] dotty.tools.dotc.core.Phases.atPhase(Phases.scala:35)
[error] dotty.tools.dotc.core.Contexts$Context.atPhase(Contexts.scala:71)
[error] dotty.tools.dotc.transform.LambdaLift$Lifter.<init>(LambdaLift.scala:367)
[error] dotty.tools.dotc.transform.LambdaLift.prepareForUnit(LambdaLift.scala:517)
[error] dotty.tools.dotc.transform.MegaPhase.prepUnit(MegaPhase.scala:1007)
[error] dotty.tools.dotc.transform.MegaPhase.transformUnit(MegaPhase.scala:414)
[error] dotty.tools.dotc.transform.MegaPhase.run(MegaPhase.scala:427)
[error] dotty.tools.dotc.core.Phases$Phase.runOn$$anonfun$1(Phases.scala:316)
[error] scala.collection.immutable.List.map(List.scala:290)
[error] dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:318)
[error] dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:158)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:36)
[error] scala.collection.IndexedSeqOptimized.foreach$(IndexedSeqOptimized.scala:33)
[error] scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:198)
[error] dotty.tools.dotc.Run.runPhases$5(Run.scala:170)
[error] dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:178)
[error] dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
[error] dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:102)
[error] dotty.tools.dotc.Run.compileUnits(Run.scala:185)
[error] dotty.tools.dotc.Run.compileSources(Run.scala:120)
[error] dotty.tools.dotc.Run.compile(Run.scala:104)
[error] dotty.tools.dotc.Driver.doCompile(Driver.scala:34)
[error] dotty.tools.dotc.Driver.process(Driver.scala:172)
[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.GeneratedMethodAccessor18.invoke(Unknown Source)
[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:237)
[error] sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:111)
[error] sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:90)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3(MixedAnalyzingCompiler.scala:82)
[error] scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
[error] sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:133)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:73)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:116)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:307)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:307)
[error] sbt.internal.inc.Incremental$.doCompile(Incremental.scala:106)
[error] sbt.internal.inc.Incremental$.$anonfun$compile$4(Incremental.scala:87)
[error] sbt.internal.inc.IncrementalCommon.recompileClasses(IncrementalCommon.scala:116)
[error] sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:63)
[error] sbt.internal.inc.Incremental$.$anonfun$compile$3(Incremental.scala:89)
[error] sbt.internal.inc.Incremental$.manageClassfiles(Incremental.scala:134)
[error] sbt.internal.inc.Incremental$.compile(Incremental.scala:80)
[error] sbt.internal.inc.IncrementalCompile$.apply(Compile.scala:67)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:311)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:269)
[error] sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:159)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:238)
[error] sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:69)
[error] sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:1549)
[error] sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:1523)
[error] scala.Function1.$anonfun$compose$1(Function1.scala:44)
[error] sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:40)
[error] sbt.std.Transform$$anon$4.work(System.scala:67)
[error] sbt.Execute.$anonfun$submit$2(Execute.scala:269)
[error] sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16)
[error] sbt.Execute.work(Execute.scala:278)
[error] sbt.Execute.$anonfun$submit$1(Execute.scala:269)
[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)

[nicolasstucki]

Minimized to

inline def species() = {
  case class FooT()
  FooT()
}
val foo = species()