Skip to content

crash when extending trait that extends jl.Enum in REPL #9324

@bishabosha

Description

@bishabosha

Minimized code

play these statements in the repl (launched with dotr 0.25.0-RC2)

scala> trait T extends java.lang.Enum[T]
scala> class TEnum extends T

Output (click arrow to expand)

error while transforming new Enum[T]
error while transforming new Enum[T]()
error while transforming () extends Enum[T](), T {}
error while transforming class TEnum() extends Enum[T](), T {}
error while transforming () extends Object(), _root_.scala.Serializable { this: rs$line$2.type =>
  class TEnum() extends Enum[T](), T {}
}
error while transforming @scala.annotation.internal.SourceFile("rs$line$2") final module class rs$line$2$
  (
) extends Object(), _root_.scala.Serializable { this: rs$line$2.type =>
  class TEnum() extends Enum[T](), T {}
}
error while transforming package <empty> {
  final lazy module val rs$line$2: rs$line$2$ = new rs$line$2$()
  @scala.annotation.internal.SourceFile("rs$line$2") final module class 
    rs$line$2$
  () extends Object(), _root_.scala.Serializable { this: rs$line$2.type =>
    class TEnum() extends Enum[T](), T {}
  }
}
Exception in thread "main" java.lang.AssertionError: assertion failed: denotation class Enum invalid in run 2. ValidFor: Period(1..44, run = 3)
	at dotty.DottyPredef$.assertFail(DottyPredef.scala:17)
	at dotty.tools.dotc.core.Denotations$SingleDenotation.updateValidity(Denotations.scala:688)
	at dotty.tools.dotc.core.Denotations$SingleDenotation.bringForward(Denotations.scala:718)
	at dotty.tools.dotc.core.Denotations$SingleDenotation.current(Denotations.scala:773)
	at dotty.tools.dotc.core.Symbols$Symbol.recomputeDenot(Symbols.scala:119)
	at dotty.tools.dotc.core.Symbols$Symbol.computeDenot(Symbols.scala:113)
	at dotty.tools.dotc.core.Symbols$Symbol.denot(Symbols.scala:106)
	at dotty.tools.dotc.core.SymDenotations$.stillValidInOwner(SymDenotations.scala:2362)
	at dotty.tools.dotc.core.SymDenotations$.stillValid(SymDenotations.scala:2358)
	at dotty.tools.dotc.core.Symbols$Symbol.isValidInCurrentRun(Symbols.scala:144)
	at dotty.tools.dotc.core.Types$NamedType.computeSymbol(Types.scala:1942)
	at dotty.tools.dotc.core.Types$NamedType.symbol(Types.scala:1937)
	at dotty.tools.dotc.core.Substituters$.subst1(Substituters.scala:27)
	at dotty.tools.dotc.core.Substituters$Subst1Map.apply(Substituters.scala:165)
	at dotty.tools.dotc.core.Types$TypeMap.mapOver$$anonfun$1(Types.scala:5003)
	at dotty.tools.dotc.core.Types$LazyRef$.apply$$anonfun$1(Types.scala:2632)
	at dotty.tools.dotc.core.Types$LazyRef.ref(Types.scala:2645)
	at dotty.tools.dotc.core.Types$TypeMap.mapOver$$anonfun$1(Types.scala:4996)
	at dotty.tools.dotc.core.Types$LazyRef$.apply$$anonfun$1(Types.scala:2632)
	at dotty.tools.dotc.core.Types$LazyRef.ref(Types.scala:2645)
	at dotty.tools.dotc.core.Types$TypeMap.mapOver$$anonfun$1(Types.scala:4996)
	at dotty.tools.dotc.core.Types$LazyRef$.apply$$anonfun$1(Types.scala:2632)
	at dotty.tools.dotc.core.Types$LazyRef.ref(Types.scala:2645)
	at dotty.tools.dotc.core.Types$TypeMap.mapOver$$anonfun$1(Types.scala:4996)
	at dotty.tools.dotc.core.Types$LazyRef$.apply$$anonfun$1(Types.scala:2632)
	at dotty.tools.dotc.core.Types$LazyRef.ref(Types.scala:2645)
	at dotty.tools.dotc.core.Types$TypeMap.mapOver$$anonfun$1(Types.scala:4996)
	at dotty.tools.dotc.core.Types$LazyRef$.apply$$anonfun$1(Types.scala:2632)
	at dotty.tools.dotc.core.Types$LazyRef.ref(Types.scala:2645)
	at dotty.tools.dotc.core.TypeComparer.secondTry$1(TypeComparer.scala:402)
	at dotty.tools.dotc.core.TypeComparer.compareNamed$1(TypeComparer.scala:274)
	at dotty.tools.dotc.core.TypeComparer.firstTry$1(TypeComparer.scala:276)
	at dotty.tools.dotc.core.TypeComparer.op$1(TypeComparer.scala:1131)
	at dotty.tools.dotc.core.TypeComparer.recur(TypeComparer.scala:1150)
	at dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:162)
	at dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:172)
	at dotty.tools.dotc.core.TypeComparer.isSubArg$1(TypeComparer.scala:1346)
	at dotty.tools.dotc.core.TypeComparer.recurArgs$1(TypeComparer.scala:1351)
	at dotty.tools.dotc.core.TypeComparer.isSubArgs(TypeComparer.scala:1354)
	at dotty.tools.dotc.core.TypeComparer.checkSubArgs$1(TypeComparer.scala:905)
	at dotty.tools.dotc.core.TypeComparer.loop$3(TypeComparer.scala:907)
	at dotty.tools.dotc.core.TypeComparer.isMatchingApply$1(TypeComparer.scala:922)
	at dotty.tools.dotc.core.TypeComparer.compareAppliedType2$1(TypeComparer.scala:1015)
	at dotty.tools.dotc.core.TypeComparer.thirdTry$1(TypeComparer.scala:498)
	at dotty.tools.dotc.core.TypeComparer.secondTry$1(TypeComparer.scala:448)
	at dotty.tools.dotc.core.TypeComparer.firstTry$1(TypeComparer.scala:345)
	at dotty.tools.dotc.core.TypeComparer.op$1(TypeComparer.scala:1131)
	at dotty.tools.dotc.core.TypeComparer.recur(TypeComparer.scala:1150)
	at dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:162)
	at dotty.tools.dotc.core.TypeComparer.tryBaseType$1(TypeComparer.scala:706)
	at dotty.tools.dotc.core.TypeComparer.compareAppliedType2$1(TypeComparer.scala:1023)
	at dotty.tools.dotc.core.TypeComparer.thirdTry$1(TypeComparer.scala:498)
	at dotty.tools.dotc.core.TypeComparer.secondTry$1(TypeComparer.scala:357)
	at dotty.tools.dotc.core.TypeComparer.firstTry$1(TypeComparer.scala:345)
	at dotty.tools.dotc.core.TypeComparer.op$1(TypeComparer.scala:1131)
	at dotty.tools.dotc.core.TypeComparer.recur(TypeComparer.scala:1150)
	at dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:162)
	at dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:172)
	at dotty.tools.dotc.core.TypeComparer.topLevelSubType(TypeComparer.scala:128)
	at dotty.tools.dotc.core.Types$Type.$less$colon$less(Types.scala:910)
	at dotty.tools.dotc.core.TypeOps$.check$1(TypeOps.scala:591)
	at dotty.tools.dotc.core.TypeOps$.checkOverlapsBounds$1(TypeOps.scala:594)
	at dotty.tools.dotc.core.TypeOps$.boundsViolations$$anonfun$2(TypeOps.scala:598)
	at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
	at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
	at scala.collection.IterableOnceOps.foreach(IterableOnce.scala:553)
	at scala.collection.IterableOnceOps.foreach$(IterableOnce.scala:551)
	at scala.collection.AbstractIterable.foreach(Iterable.scala:920)
	at scala.collection.IterableOps$WithFilter.foreach(Iterable.scala:890)
	at dotty.tools.dotc.core.TypeOps$.boundsViolations(TypeOps.scala:600)
	at dotty.tools.dotc.typer.Checking$.checkBounds(Checking.scala:72)
	at dotty.tools.dotc.typer.Checking$.checkBounds(Checking.scala:83)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform(PostTyper.scala:282)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.app1$1(PostTyper.scala:262)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform(PostTyper.scala:270)
	at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform$$anonfun$2(Trees.scala:1371)
	at scala.collection.immutable.List.mapConserve(List.scala:472)
	at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1371)
	at dotty.tools.dotc.transform.MacroTransform$Transformer.transform(MacroTransform.scala:58)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform$$anonfun$7$$anonfun$1(PostTyper.scala:301)
	at dotty.tools.dotc.transform.SuperAccessors.wrapTemplate(SuperAccessors.scala:199)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform$$anonfun$4(PostTyper.scala:301)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.withNoCheckNews(PostTyper.scala:97)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform(PostTyper.scala:302)
	at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1349)
	at dotty.tools.dotc.transform.MacroTransform$Transformer.transform(MacroTransform.scala:54)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform(PostTyper.scala:324)
	at dotty.tools.dotc.transform.MacroTransform$Transformer.transformStat$1(MacroTransform.scala:42)
	at dotty.tools.dotc.transform.MacroTransform$Transformer.transformStats$$anonfun$1(MacroTransform.scala:45)
	at dotty.tools.dotc.core.Decorators$ListDecorator$.loop$1(Decorators.scala:67)
	at dotty.tools.dotc.core.Decorators$ListDecorator$.mapconserve$extension(Decorators.scala:83)
	at dotty.tools.dotc.transform.MacroTransform$Transformer.transformStats(MacroTransform.scala:45)
	at dotty.tools.dotc.transform.MacroTransform$Transformer.transform(MacroTransform.scala:61)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform$$anonfun$7$$anonfun$1(PostTyper.scala:301)
	at dotty.tools.dotc.transform.SuperAccessors.wrapTemplate(SuperAccessors.scala:199)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform$$anonfun$4(PostTyper.scala:301)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.withNoCheckNews(PostTyper.scala:97)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform(PostTyper.scala:302)
	at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1349)
	at dotty.tools.dotc.transform.MacroTransform$Transformer.transform(MacroTransform.scala:54)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform(PostTyper.scala:324)
	at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform$$anonfun$2(Trees.scala:1371)
	at scala.collection.immutable.List.mapConserve(List.scala:472)
	at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1371)
	at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transformStats(Trees.scala:1369)
	at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1356)
	at dotty.tools.dotc.transform.MacroTransform$Transformer.transform(MacroTransform.scala:54)
	at dotty.tools.dotc.transform.PostTyper$PostTyperTransformer.transform(PostTyper.scala:388)
	at dotty.tools.dotc.transform.MacroTransform.run(MacroTransform.scala:21)
	at dotty.tools.dotc.core.Phases$Phase.runOn$$anonfun$1(Phases.scala:295)
	at scala.collection.immutable.List.map(List.scala:246)
	at dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:296)
	at dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:181)
	at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
	at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
	at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
	at dotty.tools.dotc.Run.runPhases$5(Run.scala:191)
	at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:199)
	at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
	at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:64)
	at dotty.tools.dotc.Run.compileUnits(Run.scala:206)
	at dotty.tools.dotc.Run.compileUnits(Run.scala:148)
	at dotty.tools.repl.ReplCompiler.runCompilationUnit(ReplCompiler.scala:153)
	at dotty.tools.repl.ReplCompiler.compile(ReplCompiler.scala:163)
	at dotty.tools.repl.ReplDriver.compile(ReplDriver.scala:233)
	at dotty.tools.repl.ReplDriver.interpret(ReplDriver.scala:196)
	at dotty.tools.repl.ReplDriver.loop$1(ReplDriver.scala:129)
	at dotty.tools.repl.ReplDriver.runUntilQuit$$anonfun$1(ReplDriver.scala:132)
	at dotty.tools.repl.ReplDriver.withRedirectedOutput(ReplDriver.scala:151)
	at dotty.tools.repl.ReplDriver.runUntilQuit(ReplDriver.scala:132)
	at dotty.tools.repl.Main$.main(Main.scala:6)
	at dotty.tools.repl.Main.main(Main.scala)

Metadata

Metadata

Assignees

No one assigned

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions