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Crash: completing val XXXXX in wrong run 3, was created in 2 while compiling #13821

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#23464
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Crash: completing val XXXXX in wrong run 3, was created in 2 while compiling#13821
#23464
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jchyb
Labels
area:metaprogramming:quotesIssues related to quotes and splicesitype:bugitype:crash
@soronpo

Description

@soronpo
soronpo
opened on Oct 26, 2021

This crash is dependent on various things that only when applied together trigger it (probably by affecting compilation order).
I did not find a way to minimize it further.
My original codebase currently works-around 2 other similar crashes that give off different reports from a wrong run, but I have yet to minimize them and will only do so once this is fixed since the problem might be related (this is a very difficult minimization).

Compiler version

v3.1.0

Minimized code

Minimized project available at: https://github.com/soronpo/dottybug/tree/wrong_run_crash

DFBits.scala

type DFBits = DFType

object DFBits:
  def apply(width: Any): Unit = {}
  val y: DFToken = ???
  y.width

  trait Candidate
  object Candidate:
    given Candidate = ???

    import DFVal.bits
    val x: IRToken = ???
    x.bits

  object Conversions:
    implicit def conv[R](from: R)(using Candidate): DFVal = ???
end DFBits

DFVal.scala

trait DFType

trait IRToken
extension (token: IRToken) def bits: Unit = ???

trait DFVal
object DFVal:
  export DFBits.Conversions.*
  extension (dfVal: DFVal)
    def width(using Width): Any = ???
    def bits(using Width): Unit = DFBits(dfVal.width)

trait DFToken
extension (token: DFToken) def width(using Width): Any = ???

import scala.quoted.*
trait Width
transparent inline given f: Width = ${ getWidthMacro }
def getWidthMacro(using Quotes): Expr[Width] =
  '{ new Width {} }

Output (click arrow to expand)

[info] exception occurred while typechecking C:\Users\oronpo\IdeaProjects\dottybug\src\main\scala\DFBits.scala
java.lang.AssertionError: assertion failed: completing val given_Candidate in wrong run 3, was created in 2 while compiling C:\Users\oronpo\IdeaProjects\dottybug\src\main\scala\DFBits.scala, C:\Users\oronpo\IdeaProjects\dottybug\src\main\scala\DFVal.scala
[error] ## Exception when compiling 2 sources to C:\Users\oronpo\IdeaProjects\dottybug\target\scala-3.1.0\classes
[error] java.lang.AssertionError: assertion failed: completing val given_Candidate in wrong run 3, was created in 2
[error] scala.runtime.Scala3RunTime$.assertFailed(Scala3RunTime.scala:8)
[error] dotty.tools.dotc.typer.Namer$Completer.complete(Namer.scala:775)
[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.Types$TermRef.underlying(Types.scala:2619)
[error] dotty.tools.dotc.core.Types$Type.widen(Types.scala:1211)
[error] dotty.tools.dotc.typer.Implicits$ImplicitRefs.candidateKind$1(Implicits.scala:227)
[error] dotty.tools.dotc.typer.Implicits$ImplicitRefs.tryCandidate$1(Implicits.scala:255)
[error] dotty.tools.dotc.typer.Implicits$ImplicitRefs.filterMatching$$anonfun$2(Implicits.scala:264)
[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.Implicits$ImplicitRefs.filterMatching(Implicits.scala:264)
[error] dotty.tools.dotc.typer.Implicits$OfTypeImplicits.eligible(Implicits.scala:286)
[error] dotty.tools.dotc.typer.Implicits$ImplicitSearch.searchImplicit(Implicits.scala:1390)
[error] dotty.tools.dotc.typer.Implicits$ImplicitSearch.searchImplicit(Implicits.scala:1399)
[error] dotty.tools.dotc.typer.Implicits$ImplicitSearch.bestImplicit(Implicits.scala:1424)
[error] dotty.tools.dotc.typer.Implicits.inferImplicit(Implicits.scala:990)
[error] dotty.tools.dotc.typer.Implicits.inferImplicit$(Implicits.scala:771)
[error] dotty.tools.dotc.typer.Typer.inferImplicit(Typer.scala:107)
[error] dotty.tools.dotc.typer.Implicits.inferImplicitArg(Implicits.scala:845)
[error] dotty.tools.dotc.typer.Implicits.inferImplicitArg$(Implicits.scala:771)
[error] dotty.tools.dotc.typer.Typer.inferImplicitArg(Typer.scala:107)
[error] dotty.tools.dotc.typer.Typer.implicitArgs$1(Typer.scala:3346)
[error] dotty.tools.dotc.typer.Typer.addImplicitArgs$3(Typer.scala:3382)
[error] dotty.tools.dotc.typer.Typer.adaptNoArgsImplicitMethod$2(Typer.scala:3462)
[error] dotty.tools.dotc.typer.Typer.adaptNoArgs$1(Typer.scala:3660)
[error] dotty.tools.dotc.typer.Typer.adapt1(Typer.scala:3873)
[error] dotty.tools.dotc.typer.Typer.adapt(Typer.scala:3224)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2883)
[error] dotty.tools.dotc.typer.Implicits.tryConversion$1(Implicits.scala:1056)
[error] dotty.tools.dotc.typer.Implicits.typedImplicit(Implicits.scala:1087)
[error] dotty.tools.dotc.typer.Implicits.typedImplicit$(Implicits.scala:771)
[error] dotty.tools.dotc.typer.Typer.typedImplicit(Typer.scala:107)
[error] dotty.tools.dotc.typer.Implicits$ImplicitSearch.tryImplicit(Implicits.scala:1137)
[error] dotty.tools.dotc.typer.Implicits$ImplicitSearch.rank$1(Implicits.scala:1216)
[error] dotty.tools.dotc.typer.Implicits$ImplicitSearch.searchImplicit(Implicits.scala:1384)
[error] dotty.tools.dotc.typer.Implicits$ImplicitSearch.searchImplicit(Implicits.scala:1391)
[error] dotty.tools.dotc.typer.Implicits$ImplicitSearch.searchImplicit(Implicits.scala:1399)
[error] dotty.tools.dotc.typer.Implicits$ImplicitSearch.bestImplicit(Implicits.scala:1424)
[error] dotty.tools.dotc.typer.Implicits.inferImplicit(Implicits.scala:990)
[error] dotty.tools.dotc.typer.Implicits.inferImplicit$(Implicits.scala:771)
[error] dotty.tools.dotc.typer.Typer.inferImplicit(Typer.scala:107)
[error] dotty.tools.dotc.typer.Implicits.inferView(Implicits.scala:817)
[error] dotty.tools.dotc.typer.Implicits.inferView$(Implicits.scala:771)
[error] dotty.tools.dotc.typer.Typer.inferView(Typer.scala:107)
[error] dotty.tools.dotc.typer.Typer.adaptToSubType$1(Typer.scala:3770)
[error] dotty.tools.dotc.typer.Typer.adaptNoArgsOther$4(Typer.scala:3592)
[error] dotty.tools.dotc.typer.Typer.adaptNoArgs$1(Typer.scala:3682)
[error] dotty.tools.dotc.typer.Typer.adapt1(Typer.scala:3873)
[error] dotty.tools.dotc.typer.Typer.adapt(Typer.scala:3224)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.typedArg(ProtoTypes.scala:433)
[error] dotty.tools.dotc.typer.Applications$ApplyToUntyped.typedArg(Applications.scala:853)
[error] dotty.tools.dotc.typer.Applications$ApplyToUntyped.typedArg(Applications.scala:853)
[error] dotty.tools.dotc.typer.Applications$Application.addTyped$1(Applications.scala:544)
[error] dotty.tools.dotc.typer.Applications$Application.matchArgs(Applications.scala:609)
[error] dotty.tools.dotc.typer.Applications$Application.init(Applications.scala:447)
[error] dotty.tools.dotc.typer.Applications$TypedApply.<init>(Applications.scala:735)
[error] dotty.tools.dotc.typer.Applications$ApplyToUntyped.<init>(Applications.scala:852)
[error] dotty.tools.dotc.typer.Applications.ApplyTo(Applications.scala:1060)
[error] dotty.tools.dotc.typer.Applications.ApplyTo$(Applications.scala:317)
[error] dotty.tools.dotc.typer.Typer.ApplyTo(Typer.scala:107)
[error] dotty.tools.dotc.typer.Applications.simpleApply$1(Applications.scala:907)
[error] dotty.tools.dotc.typer.Applications.realApply$5$$anonfun$4(Applications.scala:986)
[error] dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:3011)
[error] dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:997)
[error] dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:1035)
[error] dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:317)
[error] dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:107)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2755)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2818)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2883)
[error] dotty.tools.dotc.typer.Applications.extMethodApply(Applications.scala:2229)
[error] dotty.tools.dotc.typer.Applications.extMethodApply$(Applications.scala:317)
[error] dotty.tools.dotc.typer.Typer.extMethodApply(Typer.scala:107)
[error] dotty.tools.dotc.typer.Typer.tryExtension$1(Typer.scala:3138)
[error] dotty.tools.dotc.typer.Typer.tryExtensionOrConversion(Typer.scala:3149)
[error] dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:587)
[error] dotty.tools.dotc.typer.Typer.typeSelectOnTerm$1(Typer.scala:626)
[error] dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:663)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2725)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2817)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2883)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2887)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2936)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2959)
[error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2409)
[error] dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2743)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2747)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2817)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2883)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2887)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2909)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2959)
[error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2409)
[error] dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2743)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2747)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2817)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2883)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2887)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2909)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2959)
[error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2409)
[error] dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2743)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2747)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2817)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2883)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2887)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2909)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2959)
[error] dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:2532)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2788)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2818)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2883)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2887)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:3003)
[error] dotty.tools.dotc.typer.TyperPhase.liftedTree1$1(TyperPhase.scala:56)
[error] dotty.tools.dotc.typer.TyperPhase.typeCheck$$anonfun$1(TyperPhase.scala:62)
[error] dotty.tools.dotc.core.Phases$Phase.monitor(Phases.scala:411)
[error] dotty.tools.dotc.typer.TyperPhase.typeCheck(TyperPhase.scala:63)
[error] dotty.tools.dotc.typer.TyperPhase.runOn$$anonfun$1(TyperPhase.scala:105)
[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.TyperPhase.runOn(TyperPhase.scala:105)
[error] dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:261)
[error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
[error] dotty.tools.dotc.Run.runPhases$5(Run.scala:272)
[error] dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:280)
[error] scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
[error] dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:68)
[error] dotty.tools.dotc.Run.compileUnits(Run.scala:289)
[error] dotty.tools.dotc.Run.compileUnits(Run.scala:228)
[error] dotty.tools.dotc.Driver.finish(Driver.scala:60)
[error] dotty.tools.dotc.Driver.doCompile(Driver.scala:40)
[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$7(MixedAnalyzingCompiler.scala:192)
[error] scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
[error] sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:247)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:182)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4$adapted(MixedAnalyzingCompiler.scala:163)
[error] sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:239)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:163)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:210)
[error] sbt.internal.inc.IncrementalCompilerImpl.$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$5(Incremental.scala:175)
[error] sbt.internal.inc.Incremental$.$anonfun$apply$5$adapted(Incremental.scala:173)
[error] sbt.internal.inc.Incremental$$anon$2.run(Incremental.scala:459)
[error] sbt.internal.inc.IncrementalCommon$CycleState.next(IncrementalCommon.scala:116)
[error] sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:56)
[error] sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:52)
[error] sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:263)
[error] sbt.internal.inc.Incremental$.$anonfun$incrementalCompile$8(Incremental.scala:414)
[error] sbt.internal.inc.Incremental$.withClassfileManager(Incremental.scala:501)
[error] sbt.internal.inc.Incremental$.incrementalCompile(Incremental.scala:401)
[error] sbt.internal.inc.Incremental$.apply(Incremental.scala:167)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:528)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:482)
[error] sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:332)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:420)
[error] sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:137)
[error] sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:2357)
[error] sbt.Defaults$.$anonfun$compileIncrementalTask$2(Defaults.scala:2314)
[error] sbt.internal.io.Retry$.apply(Retry.scala:46)
[error] sbt.internal.io.Retry$.apply(Retry.scala:28)
[error] sbt.internal.io.Retry$.apply(Retry.scala:23)
[error] sbt.internal.server.BspCompileTask$.compute(BspCompileTask.scala:31)
[error] sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:2310)
[error] scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error] sbt.internal.util.$tilde$greater.$anonfun$$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:829)
[error]
[error] stack trace is suppressed; run 'last Compile / compileIncremental' for the full output
[error] (Compile / compileIncremental) java.lang.AssertionError: assertion failed: completing val given_Candidate in wrong run 3, was created in 2

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