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MissingType exception while generating scaladoc #16033

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oscar-broman opened this issue Sep 13, 2022 · 2 comments
Closed

MissingType exception while generating scaladoc #16033

oscar-broman opened this issue Sep 13, 2022 · 2 comments
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area:doctool itype:bug itype:crash stat:needs info stat:needs minimization Needs a self contained minimization

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@oscar-broman
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Compiler version

3.2.0 and 3.2.1-RC1 (version used for stacktrace below)

Minimized code

Unfortunately I've not been able to make a minimal test case.

Output (click arrow to expand)

dotty.tools.dotc.core.MissingType:
  | => dat dotty.tools.dotc.core.TypeErasure.dotty$tools$dotc$core$TypeErasure$$sigName(TypeErasure.scala:815)
	at dotty.tools.dotc.core.TypeErasure$.sigName(TypeErasure.scala:204)
	at dotty.tools.dotc.core.Signature.$anonfun$2(Signature.scala:111)
	at scala.collection.immutable.List.map(List.scala:250)
	at dotty.tools.dotc.core.Signature.prependTermParams(Signature.scala:111)
	at dotty.tools.dotc.core.Types$MethodOrPoly.computeSignature$2(Types.scala:3673)
	at dotty.tools.dotc.core.Types$MethodOrPoly.signature(Types.scala:3690)
	at dotty.tools.dotc.core.Denotations$SingleDenotation.signature(Denotations.scala:615)
	at dotty.tools.dotc.core.Denotations$SingleDenotation.matchesLoosely(Denotations.scala:1033)
	at dotty.tools.dotc.core.Denotations$SingleDenotation.matches(Denotations.scala:1017)
	at dotty.tools.dotc.core.Denotations$Denotation.mergeDenot$1(Denotations.scala:406)
	at dotty.tools.dotc.core.Denotations$Denotation.meet(Denotations.scala:496)
	at dotty.tools.dotc.core.Denotations$DenotUnion.toDenot(Denotations.scala:1217)
	at dotty.tools.dotc.core.SymDenotations$ClassDenotation.findMember(SymDenotations.scala:2078)
	at dotty.tools.dotc.core.Types$Type.go$1(Types.scala:686)
	at dotty.tools.dotc.core.Types$Type.findMember(Types.scala:879)
	at dotty.tools.dotc.core.Types$Type.memberBasedOnFlags(Types.scala:669)
	at dotty.tools.dotc.core.Types$Type.member(Types.scala:653)
	at dotty.tools.dotc.core.Types$Type.allMembers$$anonfun$1(Types.scala:1020)
	at scala.runtime.function.JProcedure2.apply(JProcedure2.java:15)
	at scala.runtime.function.JProcedure2.apply(JProcedure2.java:10)
	at dotty.tools.dotc.core.Types$Type.memberDenots$$anonfun$1(Types.scala:925)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
	at scala.collection.immutable.HashSet.foreach(HashSet.scala:937)
	at dotty.tools.dotc.core.Types$Type.memberDenots(Types.scala:925)
	at dotty.tools.dotc.core.Types$Type.allMembers(Types.scala:1020)
	at dotty.tools.scaladoc.tasty.SyntheticsSupport$.hackGetmembers(SyntheticSupport.scala:63)
	at dotty.tools.scaladoc.tasty.SyntheticsSupport$.getmembers(SyntheticSupport.scala:21)
	at dotty.tools.scaladoc.tasty.ClassLikeSupport.getNonTrivialInheritedMemberTrees(ClassLikeSupport.scala:218)
	at dotty.tools.scaladoc.tasty.ClassLikeSupport.getNonTrivialInheritedMemberTrees$(ClassLikeSupport.scala:15)
	at dotty.tools.scaladoc.tasty.TastyParser.getNonTrivialInheritedMemberTrees(TastyParser.scala:169)
	at dotty.tools.scaladoc.tasty.ClassLikeSupport.extractMembers(ClassLikeSupport.scala:224)
	at dotty.tools.scaladoc.tasty.ClassLikeSupport.extractMembers$(ClassLikeSupport.scala:15)
	at dotty.tools.scaladoc.tasty.TastyParser.extractMembers(TastyParser.scala:169)
	at dotty.tools.scaladoc.tasty.ClassLikeSupport.extractPatchedMembers(ClassLikeSupport.scala:234)
	at dotty.tools.scaladoc.tasty.ClassLikeSupport.extractPatchedMembers$(ClassLikeSupport.scala:15)
	at dotty.tools.scaladoc.tasty.TastyParser.extractPatchedMembers(TastyParser.scala:169)
	at dotty.tools.scaladoc.tasty.ClassLikeSupport.mkClass(ClassLikeSupport.scala:121)
	at dotty.tools.scaladoc.tasty.ClassLikeSupport.mkClass$(ClassLikeSupport.scala:15)
	at dotty.tools.scaladoc.tasty.TastyParser.mkClass(TastyParser.scala:169)
	at dotty.tools.scaladoc.tasty.ClassLikeSupport.parseClasslike(ClassLikeSupport.scala:298)
	at dotty.tools.scaladoc.tasty.ClassLikeSupport.parseClasslike$(ClassLikeSupport.scala:15)
	at dotty.tools.scaladoc.tasty.TastyParser.parseClasslike(TastyParser.scala:169)
	at dotty.tools.scaladoc.tasty.TastyParser$Traverser$2$.traverseTree(TastyParser.scala:223)
	at scala.quoted.Quotes$reflectModule$TreeTraverser.foldTree(Quotes.scala:4666)
	at scala.quoted.Quotes$reflectModule$TreeTraverser.foldTree$(Quotes.scala:4662)
	at dotty.tools.scaladoc.tasty.TastyParser$Traverser$2$.foldTree(TastyParser.scala:211)
	at dotty.tools.scaladoc.tasty.TastyParser$Traverser$2$.foldTree(TastyParser.scala:211)
	at scala.quoted.Quotes$reflectModule$TreeAccumulator.foldTrees$$anonfun$1(Quotes.scala:4554)
	at scala.collection.LinearSeqOps.foldLeft(LinearSeq.scala:169)
	at scala.collection.LinearSeqOps.foldLeft$(LinearSeq.scala:165)
	at scala.collection.immutable.List.foldLeft(List.scala:79)
	at scala.quoted.Quotes$reflectModule$TreeAccumulator.foldTrees(Quotes.scala:4554)
	at scala.quoted.Quotes$reflectModule$TreeAccumulator.foldTrees$(Quotes.scala:4549)
	at dotty.tools.scaladoc.tasty.TastyParser$Traverser$2$.foldTrees(TastyParser.scala:211)
	at scala.quoted.Quotes$reflectModule$TreeAccumulator.foldOverTree(Quotes.scala:4617)
	at scala.quoted.Quotes$reflectModule$TreeAccumulator.foldOverTree$(Quotes.scala:4549)
	at dotty.tools.scaladoc.tasty.TastyParser$Traverser$2$.foldOverTree(TastyParser.scala:211)
	at scala.quoted.Quotes$reflectModule$TreeTraverser.traverseTreeChildren(Quotes.scala:4668)
	at scala.quoted.Quotes$reflectModule$TreeTraverser.traverseTreeChildren$(Quotes.scala:4662)
	at dotty.tools.scaladoc.tasty.TastyParser$Traverser$2$.traverseTreeChildren(TastyParser.scala:211)
	at scala.quoted.Quotes$reflectModule$TreeTraverser.traverseTree(Quotes.scala:4664)
	at scala.quoted.Quotes$reflectModule$TreeTraverser.traverseTree$(Quotes.scala:4662)
	at dotty.tools.scaladoc.tasty.TastyParser$Traverser$2$.traverseTree(TastyParser.scala:219)
	at dotty.tools.scaladoc.tasty.TastyParser.parseRootTree(TastyParser.scala:228)
	at dotty.tools.scaladoc.tasty.ScaladocTastyInspector.$anonfun$4(TastyParser.scala:123)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
	at dotty.tools.scaladoc.tasty.ScaladocTastyInspector.postProcess$$anonfun$2(TastyParser.scala:42)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
	at scala.collection.immutable.List.foreach(List.scala:333)
	at dotty.tools.scaladoc.tasty.ScaladocTastyInspector.postProcess(TastyParser.scala:42)
	at scala.tasty.inspector.OldTastyInspector$TastyInspectorFinishPhase$1.runOn(OldTastyInspector.scala:91)
	at dotty.tools.dotc.Run.runPhases$1$$anonfun$1(Run.scala:233)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
	at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1328)
	at dotty.tools.dotc.Run.runPhases$1(Run.scala:244)
	at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:252)
	at dotty.tools.dotc.Run.compileUnits$$anonfun$adapted$1(Run.scala:261)
	at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:68)
	at dotty.tools.dotc.Run.compileUnits(Run.scala:261)
	at dotty.tools.dotc.Run.compileUnits(Run.scala:191)
	at dotty.tools.dotc.fromtasty.TASTYRun.compile(TASTYRun.scala:14)
	at dotty.tools.dotc.Driver.doCompile(Driver.scala:35)
	at dotty.tools.dotc.Driver.process(Driver.scala:195)
	at scala.tasty.inspector.OldTastyInspector.inspectFilesInContext(OldTastyInspector.scala:72)
	at scala.tasty.inspector.OldTastyInspector.inspectFilesInContext$(OldTastyInspector.scala:22)
	at scala.tasty.inspector.DocTastyInspector.inspectFilesInContext(DocTastyInspector.scala:5)
	at dotty.tools.scaladoc.tasty.ScaladocTastyInspector.result(TastyParser.scala:147)
	at dotty.tools.scaladoc.ScalaModuleProvider$.mkModule(ScalaModuleProvider.scala:11)
	at dotty.tools.scaladoc.Scaladoc$.run(Scaladoc.scala:241)
	at dotty.tools.scaladoc.Scaladoc$.run$$anonfun$1(Scaladoc.scala:73)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
	at scala.Option.map(Option.scala:242)
	at dotty.tools.scaladoc.Scaladoc$.run(Scaladoc.scala:77)
	at dotty.tools.dottydoc.Main$.process(Main.scala:25)
	at dotty.tools.dottydoc.Main.process(Main.scala)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base/java.lang.reflect.Method.invoke(Method.java:577)
	at xsbt.DottydocRunner.run(DottydocRunner.java:61)
	at xsbt.ScaladocInterface.run(ScaladocInterface.java:11)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base/java.lang.reflect.Method.invoke(Method.java:577)
	at sbt.internal.inc.AnalyzingCompiler.invoke(AnalyzingCompiler.scala:329)
	at sbt.internal.inc.AnalyzingCompiler.doc(AnalyzingCompiler.scala:175)
	at sbt.internal.inc.AnalyzingCompiler.doc(AnalyzingCompiler.scala:133)
	at sbt.Doc$.$anonfun$scaladoc$1(Doc.scala:52)
	at sbt.Doc$.$anonfun$scaladoc$1$adapted(Doc.scala:40)
	at sbt.RawCompileLike$.$anonfun$prepare$1(RawCompileLike.scala:79)
	at sbt.RawCompileLike$.$anonfun$prepare$1$adapted(RawCompileLike.scala:72)
	at sbt.RawCompileLike$.$anonfun$cached$4(RawCompileLike.scala:63)
	at sbt.RawCompileLike$.$anonfun$cached$4$adapted(RawCompileLike.scala:61)
	at sbt.util.Tracked$.$anonfun$inputChangedW$1(Tracked.scala:219)
	at sbt.RawCompileLike$.$anonfun$cached$1(RawCompileLike.scala:68)
	at sbt.RawCompileLike$.$anonfun$cached$1$adapted(RawCompileLike.scala:52)
	at sbtunidoc.Unidoc$.apply(Unidoc.scala:32)
	at sbtunidoc.BaseUnidocPlugin$.$anonfun$baseUnidocSettings$1(BaseUnidocPlugin.scala:25)
	at scala.Function1.$anonfun$compose$1(Function1.scala:49)
	at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
	at sbt.std.Transform$$anon$4.work(Transform.scala:68)
	at sbt.Execute.$anonfun$submit$2(Execute.scala:282)
	at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:23)
	at sbt.Execute.work(Execute.scala:291)
	at sbt.Execute.$anonfun$submit$1(Execute.scala:282)
	at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265)
	at sbt.CompletionService$$anon$2.call(CompletionService.scala:64)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:833)
@oscar-broman oscar-broman added itype:bug itype:crash stat:needs triage Every issue needs to have an "area" and "itype" label labels Sep 13, 2022
@KacperFKorban KacperFKorban added area:doctool stat:needs minimization Needs a self contained minimization and removed stat:needs triage Every issue needs to have an "area" and "itype" label labels Sep 15, 2022
@szymon-rd
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Could you provide any details about when it happened, what was the scaladoc being generated for?

@Gedochao
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Gedochao commented Apr 4, 2024

Closing, as there is no info to go on and a lot of time has passed.
Feel free to reopen if it's proven to be reproducible on LTS and/or Next.

@Gedochao Gedochao closed this as not planned Won't fix, can't repro, duplicate, stale Apr 4, 2024
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@oscar-broman @szymon-rd @Gedochao @KacperFKorban