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stale symbol; type scala$Predef$$Class$$T#4741 in type Class, defined in run 2, is referred to in run 3 #130

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gzm0 opened this issue May 5, 2014 · 4 comments
Closed

stale symbol; type scala$Predef$$Class$$T#4741 in type Class, defined in run 2, is referred to in run 3 #130

gzm0 opened this issue May 5, 2014 · 4 comments

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@gzm0
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gzm0 commented May 5, 2014

When running the following test:

checkCompile("intercepted",
    """
    class A
    """
) { (tree, context) =>
  implicit val ctx = context
  println(tree.show)
}

I get the following exception:

error occurred during: ClassInfo(ThisType(module class scala), class AnyVal): ClassInfo(ThisType(module class scala), class AnyVal) member getClass
[error] Test test.transform.ConstructorsTest.printTest failed: stale symbol; type scala$Predef$$Class$$T#4741 in type Class, defined in run 2, is referred to in run 3
[error]     at dotty.tools.dotc.core.Denotations$SingleDenotation.staleSymbolError(Denotations.scala:604)
[error]     at dotty.tools.dotc.core.Denotations$SingleDenotation.bringForward(Denotations.scala:497)
[error]     at dotty.tools.dotc.core.Denotations$SingleDenotation.current(Denotations.scala:517)
[error]     at dotty.tools.dotc.core.Symbols$Symbol.denot(Symbols.scala:338)
[error]     at dotty.tools.dotc.core.Symbols$.toDenot(Symbols.scala:535)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.isLocal(UnPickler.scala:283)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.readType(UnPickler.scala:642)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$$anonfun$readTypeRef$1.apply(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$$anonfun$readTypeRef$1.apply(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.atReadPos(UnPickler.scala:307)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.at(UnPickler.scala:297)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.readTypeRef(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$$anonfun$15.apply(UnPickler.scala:647)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$$anonfun$15.apply(UnPickler.scala:647)
[error]     at dotty.tools.dotc.core.pickling.PickleBuffer.until(PickleBuffer.scala:161)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.readType(UnPickler.scala:647)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$$anonfun$readTypeRef$1.apply(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$$anonfun$readTypeRef$1.apply(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.atReadPos(UnPickler.scala:307)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.at(UnPickler.scala:297)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.readTypeRef(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.readType(UnPickler.scala:679)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler$$anonfun$9.apply(UnPickler.scala:511)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler$$anonfun$9.apply(UnPickler.scala:511)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.atReadPos(UnPickler.scala:307)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.at(UnPickler.scala:297)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler.dotty$tools$dotc$core$pickling$UnPickler$LocalUnpickler$$parseToCompletion$1(UnPickler.scala:511)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler$$anonfun$complete$1.apply$mcV$sp(UnPickler.scala:536)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler$$anonfun$complete$1.apply(UnPickler.scala:536)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler$$anonfun$complete$1.apply(UnPickler.scala:536)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.atReadPos(UnPickler.scala:307)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler.complete(UnPickler.scala:536)
[error]     at dotty.tools.dotc.core.SymDenotations$SymDenotation.completeFrom(SymDenotations.scala:150)
[error]     at dotty.tools.dotc.core.SymDenotations$SymDenotation.info(SymDenotations.scala:132)
[error]     at dotty.tools.dotc.core.Types$NamedType.info(Types.scala:1130)
[error]     at dotty.tools.dotc.core.Types$TypeRef.underlying(Types.scala:1217)
[error]     at dotty.tools.dotc.core.TypeApplications$$anonfun$appliedTo$extension0$1.apply(TypeApplications.scala:137)
[error]     at dotty.tools.dotc.core.TypeApplications$$anonfun$appliedTo$extension0$1.apply(TypeApplications.scala:112)
[error]     at dotty.tools.dotc.util.Stats$.track(Stats.scala:35)
[error]     at dotty.tools.dotc.core.TypeApplications$.appliedTo$extension0(TypeApplications.scala:112)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.readType(UnPickler.scala:649)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$$anonfun$readTypeRef$1.apply(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$$anonfun$readTypeRef$1.apply(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.atReadPos(UnPickler.scala:307)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.at(UnPickler.scala:297)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.readTypeRef(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.readType(UnPickler.scala:684)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$$anonfun$readTypeRef$1.apply(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$$anonfun$readTypeRef$1.apply(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.atReadPos(UnPickler.scala:307)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.at(UnPickler.scala:297)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.readTypeRef(UnPickler.scala:764)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.readType(UnPickler.scala:671)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler$$anonfun$9.apply(UnPickler.scala:511)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler$$anonfun$9.apply(UnPickler.scala:511)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.atReadPos(UnPickler.scala:307)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.at(UnPickler.scala:297)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler.dotty$tools$dotc$core$pickling$UnPickler$LocalUnpickler$$parseToCompletion$1(UnPickler.scala:511)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler$$anonfun$complete$1.apply$mcV$sp(UnPickler.scala:536)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler$$anonfun$complete$1.apply(UnPickler.scala:536)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler$$anonfun$complete$1.apply(UnPickler.scala:536)
[error]     at dotty.tools.dotc.core.pickling.UnPickler.atReadPos(UnPickler.scala:307)
[error]     at dotty.tools.dotc.core.pickling.UnPickler$LocalUnpickler.complete(UnPickler.scala:536)
[error]     at dotty.tools.dotc.core.SymDenotations$SymDenotation.completeFrom(SymDenotations.scala:150)
[error]     at dotty.tools.dotc.core.SymDenotations$SymDenotation.info(SymDenotations.scala:132)
[error]     at dotty.tools.dotc.core.Denotations$SingleDenotation.signature(Denotations.scala:377)
[error]     at dotty.tools.dotc.core.Denotations$SingleDenotation.containsSig(Denotations.scala:623)
[error]     at dotty.tools.dotc.core.Denotations$SingleDenotation.filterDisjoint(Denotations.scala:627)
[error]     at dotty.tools.dotc.core.Denotations$SingleDenotation.mapInherited(Denotations.scala:631)
[error]     at dotty.tools.dotc.core.Denotations$SingleDenotation.mapInherited(Denotations.scala:371)
[error]     at dotty.tools.dotc.core.SymDenotations$ClassDenotation$$anonfun$computeNPMembersNamed$1.collect$1(SymDenotations.scala:1107)
[error]     at dotty.tools.dotc.core.SymDenotations$ClassDenotation$$anonfun$computeNPMembersNamed$1.apply(SymDenotations.scala:1115)
[error]     at dotty.tools.dotc.core.SymDenotations$ClassDenotation$$anonfun$computeNPMembersNamed$1.apply(SymDenotations.scala:1092)
[error]     at dotty.tools.dotc.util.Stats$.track(Stats.scala:35)
[error]     at dotty.tools.dotc.core.SymDenotations$ClassDenotation.computeNPMembersNamed(SymDenotations.scala:1091)
[error]     at dotty.tools.dotc.core.SymDenotations$ClassDenotation.nonPrivateMembersNamed(SymDenotations.scala:1081)
[error]     at dotty.tools.dotc.core.SymDenotations$ClassDenotation.membersNamed(SymDenotations.scala:1068)
[error]     at dotty.tools.dotc.core.SymDenotations$ClassDenotation.findMember(SymDenotations.scala:1120)
[error]     at dotty.tools.dotc.core.Types$Type.go$1(Types.scala:364)
[error]     at dotty.tools.dotc.core.Types$Type.findMember(Types.scala:399)
[error]     at dotty.tools.dotc.core.Types$Type$$anonfun$member$1.apply(Types.scala:334)
[error]     at dotty.tools.dotc.core.Types$Type$$anonfun$member$1.apply(Types.scala:334)
[error]     at dotty.tools.dotc.util.Stats$.track(Stats.scala:35)
[error]     at dotty.tools.dotc.core.Types$Type.member(Types.scala:333)
[error]     at dotty.tools.dotc.core.Denotations$Denotation.requiredMethod(Denotations.scala:191)
[error]     at dotty.tools.dotc.core.Definitions.AnyVal_getClass$lzycompute(Definitions.scala:129)
[error]     at dotty.tools.dotc.core.Definitions.AnyVal_getClass(Definitions.scala:129)
[error]     at dotty.tools.dotc.transform.InterceptedMethods.init(InterceptedMethods.scala:53)
[error]     at dotty.tools.dotc.transform.TreeTransforms$TreeTransformer$$anonfun$transform$1.apply(TreeTransform.scala:500)
[error]     at dotty.tools.dotc.transform.TreeTransforms$TreeTransformer$$anonfun$transform$1.apply(TreeTransform.scala:497)
[error]     at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
[error]     at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
[error]     at dotty.tools.dotc.transform.TreeTransforms$TreeTransformer.transform(TreeTransform.scala:497)
[error]     at dotty.tools.dotc.transform.TreeTransforms$TreeTransformer.run(TreeTransform.scala:430)
[error]     at dotty.tools.dotc.core.Phases$Phase$$anonfun$runOn$1.apply(Phases.scala:197)
[error]     at dotty.tools.dotc.core.Phases$Phase$$anonfun$runOn$1.apply(Phases.scala:197)
[error]     at scala.collection.immutable.List.foreach(List.scala:383)
[error]     at dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:197)
[error]     at dotty.tools.dotc.Run$$anonfun$compileSources$1$$anonfun$apply$mcV$sp$3.apply(Run.scala:42)
[error]     at dotty.tools.dotc.Run$$anonfun$compileSources$1$$anonfun$apply$mcV$sp$3.apply(Run.scala:40)
[error]     at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
[error]     at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
[error]     at dotty.tools.dotc.Run$$anonfun$compileSources$1.apply$mcV$sp(Run.scala:40)
[error]     at dotty.tools.dotc.Run$$anonfun$compileSources$1.apply(Run.scala:32)
[error]     at dotty.tools.dotc.Run$$anonfun$compileSources$1.apply(Run.scala:32)
[error]     at dotty.tools.dotc.util.Stats$.monitorHeartBeat(Stats.scala:68)
[error]     at dotty.tools.dotc.Run.compileSources(Run.scala:31)
[error]     at dotty.tools.dotc.Run.compile(Run.scala:63)
[error]     at test.DottyTest.checkCompile(DottyTest.scala:60)
@odersky
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odersky commented May 5, 2014

The error output is truncated. It would be good to find out in some more depth what went wrong here. What was the stale symbol? Why did it get picked up?

@gzm0
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gzm0 commented May 5, 2014

That's all the output I get... You should be able to reproduce this by just copying the code in a test method (like in LazyVals test).

@odersky
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odersky commented May 5, 2014

This looks like it might be fixed in fix/erasure 2.

@gzm0
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gzm0 commented May 6, 2014

Confirming this. Issue is fixed in #128.

@gzm0 gzm0 closed this as completed May 6, 2014
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@odersky @gzm0