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vpatryshev opened this issue Jun 14, 2021 · 2 comments
Closed

Self alias in object nested in class causes crash #12822

vpatryshev opened this issue Jun 14, 2021 · 2 comments
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itype:bug itype:crash

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@vpatryshev
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vpatryshev commented Jun 14, 2021 •
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Compiler version

3.0.1-RC1

Minimized code

See in github

Output (click arrow to expand)

Exception.

[error] ## Exception when compiling 32 sources to /Users/vpatryshev/projects/private/Categories/scala3/target/scala-3.0.0/test-classes
[error] scala.MatchError: ThisType(TypeRef(ThisType(TypeRef(TermRef(ThisType(TypeRef(NoPrefix,module class cat)),object topos),trait GrothendieckTopos)),module class Ω$)) (of class dotty.tools.dotc.core.Types$CachedThisType)
[error] dotty.tools.dotc.core.SymDenotations$SymDenotation.sourceOfSelf$1(SymDenotations.scala:1028)
[error] dotty.tools.dotc.core.SymDenotations$SymDenotation.sourceModule(SymDenotations.scala:1030)
[error] dotty.tools.dotc.core.ConstraintHandling.widenInferred(ConstraintHandling.scala:418)
[error] dotty.tools.dotc.core.ConstraintHandling.widenInferred$(ConstraintHandling.scala:26)
[error] dotty.tools.dotc.core.TypeComparer.widenInferred(TypeComparer.scala:30)
[error] dotty.tools.dotc.core.TypeComparer$.widenInferred(TypeComparer.scala:2691)
[error] dotty.tools.dotc.typer.Namer.rhsType$1(Namer.scala:1523)
[error] dotty.tools.dotc.typer.Namer.cookedRhsType$1(Namer.scala:1538)
[error] dotty.tools.dotc.typer.Namer.lhsType$1(Namer.scala:1539)
[error] dotty.tools.dotc.typer.Namer.inferredType$1(Namer.scala:1550)
[error] dotty.tools.dotc.typer.Namer.valOrDefDefSig(Namer.scala:1559)
[error] dotty.tools.dotc.typer.Namer$Completer.typeSig(Namer.scala:699)
[error] dotty.tools.dotc.typer.Namer$Completer.completeInCreationContext(Namer.scala:826)
[error] dotty.tools.dotc.typer.Namer$Completer.complete(Namer.scala:727)
[error] dotty.tools.dotc.core.SymDenotations$SymDenotation.completeFrom(SymDenotations.scala:167)
[error] dotty.tools.dotc.core.Denotations$Denotation.completeInfo$1(Denotations.scala:188)
[error] dotty.tools.dotc.core.Denotations$Denotation.info(Denotations.scala:190)
[error] dotty.tools.dotc.core.SymDenotations$SymDenotation.ensureCompleted(SymDenotations.scala:369)
[error] dotty.tools.dotc.typer.Typer.retrieveSym(Typer.scala:2611)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2636)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2730)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2800)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2822)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2872)
[error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:1012)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:1016)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2677)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2731)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2800)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$3$$anonfun$1(ProtoTypes.scala:395)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.cacheTypedArg(ProtoTypes.scala:370)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$4(ProtoTypes.scala:395)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$adapted$1(ProtoTypes.scala:395)
[error] dotty.tools.dotc.core.Decorators$ListDecorator$.recur$1(Decorators.scala:168)
[error] dotty.tools.dotc.core.Decorators$ListDecorator$.mapWithIndexConserve$extension(Decorators.scala:174)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.typedArgs(ProtoTypes.scala:395)
[error] dotty.tools.dotc.typer.Applications.resolveOverloaded1(Applications.scala:1899)
[error] dotty.tools.dotc.typer.Applications.resolve$1(Applications.scala:1738)
[error] dotty.tools.dotc.typer.Applications.resolveOverloaded(Applications.scala:1779)
[error] dotty.tools.dotc.typer.Applications.resolveOverloaded$(Applications.scala:303)
[error] dotty.tools.dotc.typer.Typer.resolveOverloaded(Typer.scala:103)
[error] dotty.tools.dotc.typer.Typer.adaptOverloaded$1(Typer.scala:3156)
[error] dotty.tools.dotc.typer.Typer.adapt1(Typer.scala:3766)
[error] dotty.tools.dotc.typer.Typer.adapt(Typer.scala:3130)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2800)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2916)
[error] dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:868)
[error] dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:1021)
[error] dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:303)
[error] dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:103)
[error] dotty.tools.dotc.typer.Typer.typedInfixOp(Typer.scala:2560)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2708)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2731)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2800)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2849)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2872)
[error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:1012)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:1016)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2677)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2731)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2800)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$3$$anonfun$1(ProtoTypes.scala:395)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.cacheTypedArg(ProtoTypes.scala:370)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$4(ProtoTypes.scala:395)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$adapted$1(ProtoTypes.scala:395)
[error] dotty.tools.dotc.core.Decorators$ListDecorator$.recur$1(Decorators.scala:168)
[error] dotty.tools.dotc.core.Decorators$ListDecorator$.mapWithIndexConserve$extension(Decorators.scala:174)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.typedArgs(ProtoTypes.scala:395)
[error] dotty.tools.dotc.typer.Applications.resolveOverloaded1(Applications.scala:1899)
[error] dotty.tools.dotc.typer.Applications.resolve$1(Applications.scala:1738)
[error] dotty.tools.dotc.typer.Applications.resolveOverloaded(Applications.scala:1779)
[error] dotty.tools.dotc.typer.Applications.resolveOverloaded$(Applications.scala:303)
[error] dotty.tools.dotc.typer.Typer.resolveOverloaded(Typer.scala:103)
[error] dotty.tools.dotc.typer.Typer.adaptOverloaded$1(Typer.scala:3156)
[error] dotty.tools.dotc.typer.Typer.adapt1(Typer.scala:3766)
[error] dotty.tools.dotc.typer.Typer.adapt(Typer.scala:3130)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2800)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2916)
[error] dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:868)
[error] dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:1021)
[error] dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:303)
[error] dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:103)
[error] dotty.tools.dotc.typer.Typer.typedInfixOp(Typer.scala:2560)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2708)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2731)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2800)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2849)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2872)
[error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2328)
[error] dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2657)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2661)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2730)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2800)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2822)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2872)
[error] dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:2451)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2702)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2731)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2800)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2916)
[error] dotty.tools.dotc.typer.FrontEnd.liftedTree1$1(FrontEnd.scala:79)
[error] dotty.tools.dotc.typer.FrontEnd.typeCheck$$anonfun$1(FrontEnd.scala:84)
[error] dotty.tools.dotc.typer.FrontEnd.monitor(FrontEnd.scala:43)
[error] dotty.tools.dotc.typer.FrontEnd.typeCheck(FrontEnd.scala:85)
[error] dotty.tools.dotc.typer.FrontEnd.runOn$$anonfun$3(FrontEnd.scala:120)
[error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] scala.collection.immutable.List.foreach(List.scala:333)
[error] dotty.tools.dotc.typer.FrontEnd.runOn(FrontEnd.scala:120)
[error] dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:205)
[error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
[error] dotty.tools.dotc.Run.runPhases$5(Run.scala:215)
[error] dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:223)
[error] scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
[error] dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:67)
[error] dotty.tools.dotc.Run.compileUnits(Run.scala:230)
[error] dotty.tools.dotc.Run.compileSources(Run.scala:166)
[error] dotty.tools.dotc.Run.compile(Run.scala:150)
[error] dotty.tools.dotc.Driver.doCompile(Driver.scala:39)
[error] dotty.tools.xsbt.CompilerBridgeDriver.run(CompilerBridgeDriver.java:88)
[error] dotty.tools.xsbt.CompilerBridge.run(CompilerBridge.java:22)
[error] sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:91)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$7(MixedAnalyzingCompiler.scala:186)
[error] scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
[error] sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:241)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:176)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4$adapted(MixedAnalyzingCompiler.scala:157)
[error] sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:239)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:157)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:204)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:528)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:528)
[error] sbt.internal.inc.Incremental$.$anonfun$apply$5(Incremental.scala:174)
[error] sbt.internal.inc.Incremental$.$anonfun$apply$5$adapted(Incremental.scala:172)
[error] sbt.internal.inc.Incremental$$anon$2.run(Incremental.scala:457)
[error] sbt.internal.inc.IncrementalCommon$CycleState.next(IncrementalCommon.scala:116)
[error] sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:56)
[error] sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:52)
[error] sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:261)
[error] sbt.internal.inc.Incremental$.$anonfun$incrementalCompile$8(Incremental.scala:412)
[error] sbt.internal.inc.Incremental$.withClassfileManager(Incremental.scala:499)
[error] sbt.internal.inc.Incremental$.incrementalCompile(Incremental.scala:399)
[error] sbt.internal.inc.Incremental$.apply(Incremental.scala:166)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:528)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:482)
[error] sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:332)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:420)
[error] sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:137)
[error] sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:2362)
[error] sbt.Defaults$.$anonfun$compileIncrementalTask$2(Defaults.scala:2319)
[error] sbt.internal.io.Retry$.apply(Retry.scala:46)
[error] sbt.internal.io.Retry$.apply(Retry.scala:28)
[error] sbt.internal.io.Retry$.apply(Retry.scala:23)
[error] sbt.internal.server.BspCompileTask$.compute(BspCompileTask.scala:31)
[error] sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:2315)
[error] scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error] sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
[error] sbt.std.Transform$$anon$4.work(Transform.scala:68)
[error] sbt.Execute.$anonfun$submit$2(Execute.scala:282)
[error] sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:23)
[error] sbt.Execute.work(Execute.scala:291)
[error] sbt.Execute.$anonfun$submit$1(Execute.scala:282)
[error] sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265)
[error] sbt.CompletionService$$anon$2.call(CompletionService.scala:64)
[error] java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
[error] java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
[error] java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
[error] java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[error] java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[error] java.base/java.lang.Thread.run(Thread.java:834)

Initially filed here
@griggt
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griggt commented Jun 14, 2021

See also #11648

@smarter
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smarter commented Jun 14, 2021

Looks like a duplicate indeed.

@smarter smarter closed this as completed Jun 14, 2021
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